ROCK DRILLING TOOL FOR ROTATIONAL PERCUSSIVE MACHINING OF CONCRETE, ROCK, MASONRY AND SUCH MATERIALS

A rock drilling tool includes a drilling head provided with a cutting body and a helix arranged between the drilling head and a shaft. The cutting body extends continuously over a nominal diameter of the rock drilling tool and has an inner region configured as a centering tip and an outer region bordering the centering tip in the radial direction. The outer region is offset towards the rear in relation to the centering tip in the active direction of the rock drilling tool. The centering tip is configured as a pyramid or a truncated pyramid and has pyramidal edges with lateral surfaces located therebetween. At least one lateral surface of the centering tip is configured as a cavity. 1. A rock drilling tool for rotational percussive machining of concrete , rock , masonry and such materials , said tool including:a drill head which includes a cutting body, anda helix arranged between the drill head and a shaft,wherein the cutting body extends in an uninterrupted manner over a nominal diameter of the rock drilling tool,wherein the cutting body includes an inner region configured as a centering tip and an outer region adjoining the centering tip in the radial direction,wherein the outer region is set back in the effective direction of the rock drilling tool in relation to the centering tip,wherein the centering tip is configured as a pyramid or as a truncated pyramid and has pyramidal edges,wherein side surfaces lie between the pyramidal edges,wherein a longitudinal center axis of the drilling tool passes through a tip of the pyramid or of the truncated pyramid, and wherein at least one side surface of the centering tip is configured as a cavity.2. The rock drilling tool as claimed in claim 1 , wherein at least two adjacent side surfaces of the centering tip are configured as a cavity.3. The rock drilling tool as claimed in claim 1 , wherein all of the side surfaces of the centering tip are configured as a cavity.4. The rock drilling tool as claimed in claim 2 , wherein a ...

Method of calibrating an ophthalmic processing device, machine programmed therefor, and computer program

The present invention is directed to a method of calibrating drill depth of an ophthalmic processing device. A number of drill cycles are selected for drilling an expected number of holes in a lens blank. The selected number of drill cycles is performed. The drill depth of each consecutive drill cycle varies incrementally. An actual number of locations the drill bit contacted the lens blank during the drill cycles is compared to the expected number of holes. The drill depth is adjusted depending on the compared values. A method of calibrating drill hole size is also disclosed.

DRILL BIT

An object is to provide a drill bit with improved strength of joint between a bit tip and a bit shaft without diminishing dust suction performance of the drill bit. A drill bit 1 includes: a bit tip including at least three cutting edge portions arranged at the distal end of the bit tip such that they are spaced apart from each other in a circumferential direction, each cutting edge portion having a rake face and a relief face forming a joint ridge L serving as a cutting edge; and a bit shaft having a distal end face F welded to a proximal end face of the bit tip such that the bit shaft rotates integrally with the bit tip The bit shaft includes a dust suction passage extending in the longitudinal direction of the bit shaft such that the distal end of the dust suction passage extends to a distal end portion of the bit shaft. A dust suction auxiliary passage is formed at the distal end portion of the bit shaft such that the dust suction auxiliary passage extends from the dust suction passage orthogonally or substantially orthogonally to the dust suction passage and a radially outer end of the dust suction auxiliary passage is open at an outer peripheral face F of the bit shaft A proximal end portion of the bit tip is integrally attached to the distal end face of the bit shaft 1. A drill bit comprising: a bit tip including at least three cutting edge portions which are arranged radially in a circumferential direction at a distal end of the bit tip , each cutting edge portion having a rake face and a relief face forming a joint ridge serving as a cutting edge; and a bit shaft having a distal end face integrally attached to a proximal end face of the bit tip such that the bit shaft rotates integrally with the bit tip , wherein:the bit shaft includes a dust suction passage extending in a longitudinal direction of the bit shaft, such that a distal end of the dust suction passage extends to a distal end portion of the bit shaft and a proximal end of the dust suction passage ...

Process of drilling organic glasses using a thermoplastic film protecting against cracking and crazing

The present invention is drawn to a process of drilling organic glasses, comprising the steps of: (a) providing a substrate of organic glass, preferably of optical grade, (b) laminating onto at least one surface of said organic glass substrate via an adhesive layer selected from the group consisting of pressure sensitive adhesives and hot melt adhesives, a thermoplastic polymer film having a thickness of at least 40 μm and an elastic modulus of at least 3 GPa, the peel strength of the thermoplastic polymer on the organic glass substrate being higher than 1.3 N/25 mm, preferably of at least 1.5 N/25 mm, (c) drilling a hole through the substrate and polymer film by means of a drill, and (d) optionally removing the thermoplastic polymer film and adhesive.

DUST VACUUMING DRILL DEVICE WITH AN INTERNAL DUST PASSAGEWAY AND METHOD FOR PRODUCING THE SAME

A dust vacuuming drill device is adapted to be connected with a vacuum suction device by a socket, and includes a drill bit and a driven shank threadedly engaged with each other and cooperatively defining therein an internal dust passageway in communication with the socket for removing the dust generated during a drilling operation. The drill unit can be removed from the driven shank when the drill unit is broken so as to readily replace the drill unit without the need to detach the driven shank from the socket, which results in low operation and material costs. 1. A dust vacuuming drill device adapted to be connected with a vacuum suction device by a socket , the socket defining a communicating chamber that has two bit ends opposite to each other in a lengthwise direction , and a suction device end disposed transverse to the lengthwise direction , comprising: a bit shaft having a tubular shaft wall which is elongated in the lengthwise direction to terminate at proximate and distal shaft ends, and which has a shaft inner wall surface that defines a longitudinal passage extending in the lengthwise direction and through said proximate shaft end,', 'a bit tip integrally connected to said distal shaft end and having at least one first penetrating hole in communication with said longitudinal passage for dust access to said longitudinal passage, and', 'an externally threaded portion disposed on said proximate shaft end; and, 'a drill unit including'} a shank body having a tubular shank wall which is elongated in the lengthwise direction to terminate at proximate and distal shank ends such that said tubular shank wall is disposed to penetrate through the communicating chamber of the socket from one of the bit ends to project said proximate shank end from the other one of the bit ends, and which has a shank inner wall surface that defines a communicating passage extending in the lengthwise direction and through said proximate shank end, and at least one second penetrating ...

Dust vacuuming drill device with an internal dust passageway and method for producing the same

A dust vacuuming drill device is adapted to be connected with a vacuum suction device by a socket, and includes a drill bit and a driven shank threadedly engaged with each other and cooperatively defining therein an internal dust passageway in communication with the socket for removing the dust generated during a drilling operation. The drill unit can be removed from the driven shank when the drill unit is broken so as to readily replace the drill unit without the need to detach the driven shank from the socket, which results in low operation and material costs.

Drill Bit

A drill bit includes a pointed head and a bit shaft. A dust suction passage is formed in the bit shaft. A hole with an opening is formed in the pointed head or in a portion of the bit shaft, the portion being near a distal end of the bit shaft. The bit shaft includes a first portion, the first portion including a core and a rib. The core extends in an axial direction, and is thinner than the pointed head. The rib protrudes radially outward from a side surface of the core, and extends over an entire length of the first portion. The dust suction passage extends through the core in the axial direction. 1. A drill bit comprising:a pointed head including a plurality of cutting edges, which are arranged in a radial manner with respect to a central axis;a bit shaft provided with the pointed head at its distal end;a dust suction passage formed in the bit shaft and extending in an axial direction; anda hole with an opening, the hole being formed in the pointed head or in a portion of the bit shaft, the portion being near the distal end of the bit shaft, wherein:the hole is in communication with the dust suction passage;the bit shaft includes a first portion, the first portion including a core and a rib;the core extends in the axial direction, and is thinner than the pointed head;the rib protrudes radially outward from a side surface of the core, and extends over an entire length of the first portion; andthe dust suction passage extends through the core in the axial direction.2. The drill bit according to claim 1 , whereina radial position of a radially outer end surface of the rib is substantially equal to a radial position of an outer peripheral surface of the pointed head.3. The drill bit according to claim 1 , whereinthe first portion includes a plurality of the ribs, andthe plurality of the ribs are arranged in a circumferential direction such that the ribs are spaced apart from each other.4. The drill bit according to claim 3 , whereinthe plurality of the ribs are ...

Lifting Device and Method for Lifting Brittle Elements

A lifting device for brittle elements such as bridge beam and deck elements, panels and the like up to and beyond 1,000 tonnes is described. The lifting device may be suitable for face and edge lifting of brittle elements that have a suitable cavity formed within or through them. The lifting device may include a lifting eye connected to an elongate member/shank that has a flared end. A sleeve about the shank may be used to raise and lower the moveably attached wedges to and from the flared end. In use the wedges upon the flared end prevent the withdrawal of the lifting device from the cavity of the brittle element. A cavity former is also described that may be used in the casting of the brittle element to form a suitable cavity.

Dust Suction Drill and Dust Suction Unit

A dust suction drill includes: a drill tip with cutting edge portions; a shaft joined to the drill tip and configured to rotate about an axis; and a dust suction passage that is generated when the cutting edge portions rotate, the dust suction passage being formed inside the shaft. The cutting edge portions are provided on a distal end surface of the drill tip and spaced apart from each other in a circumferential direction. Cutting edges, each of which is formed by a joint ridge between a rake face and a relief face of a corresponding one of the cutting edge portions, are arranged radially, and at a center of the drill tip, form a chisel point, which is a pointed end. A dust suction hole, which communicates with the dust suction passage, is formed in the rake face or the relief face closely to the chisel point. 1. A dust suction drill comprising:a drill tip with cutting edge portions formed on a distal end of the drill tip;a shaft joined to the drill tip and configured to rotate about an axis line; anda dust suction passage for sucking dust that is generated when the cutting edge portions rotate, the dust suction passage being formed inside the shaft, whereinthe cutting edge portions and the drill tip are made of a metal and integrally formed together,the cutting edge portions are provided on a distal end surface of the drill tip and spaced apart from each other in a circumferential direction,cutting edges, each of which is formed by a joint ridge between a rake face and a relief face of a corresponding one of the cutting edge portions, are arranged radially, and at a center of the drill tip, form a chisel point, which is a pointed end, anda dust suction hole, which communicates with the dust suction passage, is formed in the rake face or the relief face closely to the chisel point, or formed over the joint ridge between the rake face and the relief face closely to the chisel point.2. The dust suction drill according to claim 1 , wherein:the dust suction passage is ...

Manufacturing Process, Tool Stand, and Drill Bit

A method for producing a drill includes cold forming of a rod-shaped blank to form a semifinished product having three or more rectilinear longitudinal ribs extending along a longitudinal axis of the semifinished product, introducing the longitudinal ribs into a first die and a second die in a working direction, where the first die bears against the longitudinal ribs in a direction of rotation about the longitudinal axis and the second die bears against the longitudinal ribs counter to the direction of rotation, pivoting the first die in the direction of rotation in relation to the second die in order to twist the longitudinal ribs between the first and second dies, pulling the longitudinal ribs 31 through the pivoted first die and the second die counter to the working direction in order to twist the longitudinal ribs and apply a drill head to the rear end in the working direction.

Feed Device

A method for using a feed device for driving a machine tool, particularly for driving a core drill bit for drilling concrete and masonry, along a machine base is disclosed. A feed device for using this method, where there is included a drive for reversibly driving the machine tool relative to the machine base and sensors for recording the parameters of the machine tool and the parameters of the feed device, is also disclosed. A machine tool for using this method, where there is included a drive for driving a tool held in the machine tool, is further disclosed. In the method, a parameter for the machine tool and/or the feed device that is optimal for working on an existing workpiece is adjusted on the basis of at least one measured parameter of the machine tool as well as at least one measured parameter of the feed device. 111.-. (canceled)12. A method for using a feed device for driving a machine tool along a machine base , comprising the steps of:adjusting a parameter during a drilling process that is optimal for working on a workpiece for the machine tool and/or the feed device based on at least one measured parameter of the machine tool and/or the feed device.13. The method according to claim 12 , further comprising the step of recording a predetermined number of measured parameters of the machine tool and the feed device.14. The method according to claim 13 , wherein the adjusting is performed using a tendency derived from a change in the recorded parameters of the machine tool and the feed device.15. The method according to claim 12 , wherein the machine tool is a core drilling machine into which a core drill bit is insertable and wherein a diameter of the core drill bit is a measured parameter of the machine tool.16. The method according to claim 12 , further comprising the step of adjusting the parameter by a parameter characterizing a hardness of the workpiece.17. A feed device claim 12 , comprising:a drive, wherein a machine tool is drivable relative to a ...

Dowel Bar Retrofit

It may be desirable to join two surfaces of a roadway using a dowel bar retrofit. Various embodiments contemplate creating a cavity for a dowel bar using a cutting head to create a cavity with scalloped walls. The system and methods may provide for an improved structural joint. 1. A method for creating a cavity in a surface , the method comprising:maintaining a frame in a locked position relative to the surface;cutting a first hole in the surface from a first position with a cutting head;moving the cutting head to a second position, the second position substantially adjacent to the first position along a substantially linear path;cutting a second hole from the second position, the second hole substantially overlapping with the first hole;moving the cutting head to a third position, the third position substantially adjacent to the second position along the substantially linear path; andcutting a third hole from the third position, the third hole substantially overlapping the second hole.2. The method of claim 1 , wherein the second position is substantially one half of a diameter of the cutting head from the first position.3. The method of claim 1 , further comprising:cutting subsequent holes until a slot length is reached from the first position substantially along the linear path.4. The method of claim 3 , wherein the first hole and a last hole are within a threshold distance of the slot length.5. The method of claim 1 , wherein the first hole claim 1 , the second hole claim 1 , and the third hole are cut to a depth with in a depth threshold of a slot depth.6. The method of claim 1 , further comprising:prior to cutting of the first hole, lowering rotating blades to make a first cut and second cut, the first and second cut substantially parallel to each other and substantially parallel to the linear path.7. The method of claim 6 , wherein the first cut and second cut extend a first distance before the slot length and a second distance beyond the slot length.8. The ...

METHOD FOR FORMING ANCHOR HOLE AND DIAMETER EXPANSION DEVICE

To provide a method for forming an anchor hole and a diameter expansion device by which a centrifugal force can be appropriately adjusted when a cutting-blade portion is moved in a radial direction by the centrifugal force to grind a diameter expansion portion. In a method for forming an anchor hole for a post-installed anchor in which a diameter expansion drill bit is inserted and rotated in a prepared-hole portion bored in a concrete fixing body and a cutting-blade portion of the diameter expansion drill bit is moved in a radial direction by a centrifugal force to grind a part of the prepared-hole portion to form a diameter expansion portion, the minimum value of the centrifugal force applied to grind the diameter expansion portion is 0.75 N and preferably 1.1 N. 1. A method for forming an anchor hole for a post-installed anchor in which a diameter expansion drill bit inserted in a prepared-hole portion bored in a concrete fixing body is rotated and a cutting-blade portion of the diameter expansion drill bit is moved in a radial direction by a centrifugal force to grind a part of the prepared-hole portion to form a diameter expansion portion , whereina minimum value of the centrifugal force applied to grind the diameter expansion portion is 0.75 N.2. The method for forming the anchor hole according to claim 1 , whereinthe minimum value of the centrifugal force applied to grind the diameter expansion portion is 1.1 N.3. The method for forming the anchor hole according to claim 1 , whereinthe diameter expansion drill bit rotates at 2500 rpm or more and 40000 rpm or less.4. The method for forming the anchor hole according to claim 3 , whereinthe diameter expansion drill bit rotates at 9000 rpm or more and 20000 rpm or less.5. The method for forming the anchor hole according to claim 1 , whereinthe diameter expansion drill bit rotates and drives for five seconds or more and 20 seconds or less to form the diameter expansion portion.6. The method for forming the anchor ...

MACHINING SEGMENT FOR THE DRY MACHINING OF CONCRETE MATERIALS

A machining segment for a machining tool which is rotatable in a direction of rotation about an axis of rotation includes an underside where the machining segment is connectable to a basic body of the machining tool by the underside. The machining segment has a machining zone of a matrix material and a plurality of first hard material particles that are disposed in the matrix material in accordance with a defined particle pattern. An upper side of the machining segment, opposite from the underside, is divided into a plurality of machining regions, which include respective ones of the plurality of first hard material particles, and a plurality of matrix regions which are built up from the matrix material. At least one of the plurality of machining regions has with respect to an adjacent matrix region a projection that is greater than 400 μm. 112.-. (canceled)13. A machining segment for a machining tool which is rotatable in a direction of rotation about an axis of rotation , comprising:an underside, wherein the machining segment is connectable to a basic body of the machining tool by the underside;a machining zone comprising a matrix material and a plurality of first hard material particles, wherein the plurality of first hard material particles are disposed in the matrix material in accordance with a defined particle pattern; andan upper side, wherein the upper side is opposite from the underside and wherein the upper side is divided into a plurality of machining regions, which include respective ones of the plurality of first hard material particles, and a plurality of matrix regions which are built up from the matrix material;wherein at least one of the plurality of machining regions has with respect to an adjacent matrix region a projection that is greater than 400 μm.14. The machining segment as claimed in claim 13 , wherein at least two of the plurality of machining regions have with respect to a respective adjacent matrix region a projection that is greater ...

CORE DRILL HAVING ONE TOUCH LOCK FUNCTION OF CORE BIT

Provided is a core drill having one touch lock function of a core bit, and particularly, new-conceptional technology of maintaining locking automatically during assembling a core bit and a decelerating unit, and releasing the locking easily, and the core drill conventionally disclosed had problems that movement and separation of the core bit and the decelerating unit of the core drill often occur during operation, because there is no specific lock function in the state that the core bit and the decelerating unit are assembled, and in this disclosure of the present invention to solve the problems, there is provided new technology for automatically maintaining locking if releasing the locking after inserting a decelerating connector coupled to a core bit into a connection hole formed in a spindle in the state of releasing the locking by pressing the lock pin elastically installed in a lock housing fittingly installed outside the spindle. 1. A core drill having one touch lock function of core bit comprising:{'b': ['11', '3'], '#text': 'a polygonal-shaped connection protrusion () coupled with one side of a core bit ();'}{'b': ['12', '11'], '#text': 'a plurality of locking grooves () respectively formed on the corners of the polygonal-shaped connection protrusions () and formed on the outer periphery thereof;'}{'b': '10', '#text': 'a decelerating connector () dently formed;'}{'b': ['20', '4', '4', '21'], 'i': 'a', '#text': 'a lock housing () integrally fitted to the outside of a spindle () which is exposedly formed outside the decelerating unit (), and formed with a pin hole () penetrating from its one outer peripheral side toward the other outer peripheral side, and'}{'b': ['30', '21', '50', '12', '10', '4', '4', '3', '4'], 'i': ['b', 'a'], '#text': 'a lock pin () which is elastically formed inside the pin hole () with a spring () interposed there between, and fitted into the locking groove () of the decelerating connector () which is fitted into a polygonal-shaped ...

Method of manufacturing a fishing lure

A fishing lure is manufactured by boring a hole through a granite stone body. A straight brass tube that is initially longer than the stone body is initially held in place inside of the hole, such that the axis of the hole and the axis of the brass tube are congruent, by a pair of rubber stoppers located at opposite ends of the hole. Before the second stopper is put into place, a curable liquid adhesive is poured into the annular space between the brass tube and the stone body. The second stopper is then secured to the brass tube at the opposite end of the stone body and he adhesive is allowed to cure. The protruding opposite ends of the brass tube are secured to a lathe, and the outside of the stone body is turned down on the lathe to the desired shape. After the lure body has been shaped and polished, one or both of the protruding ends of the brass tube is shortened to its finished length. 1. A method of manufacturing a fishing lure comprising the steps of:selecting a granite member having a first end and a second end;boring a hole through said granite member from said first end to said second end of said granite member, wherein said hole has a first hole diameter;inserting a straight brass tube in said hole so as to create a first annular space between and outside surface of said brass tube and said granite member, wherein said brass tubing has a first length that is greater than the distance between said first end and said second end of said granite member, and wherein said brass tubing has an outside diameter that is smaller than said first hole diameter, and wherein a first portion of said brass tube extends beyond said first end of said granite member;placing a first elastomeric stopper member in said hole at said first end of said granite member, wherein said first stopper member has an outside diameter, and wherein said first stopper member has a first stopper through hole that is concentric with said outside diameter of said first stopper member;inserting ...

Method for drilling an ophthalmic lens in a helical trajectory and associated drilling device

A method for drilling an ophthalmic lens ( 10 ) includes the following steps:—memorizing the desired shape and dimensions of a drill hole ( 701; 702; 703 ) to be drilled in the ophthalmic lens ( 10 ) and the position of the opening of this drill hole on one of the faces ( 11, 12 ) of the ophthalmic lens;—positioning a drilling tool ( 80 ) facing the memorized position of the hole to be drilled;—determining a control setpoint for the transverse movement and axial advance of the drilling tool; and—drilling the ophthalmic lens according to the control setpoint. The control setpoint for the transverse movement and axial advance of the drilling tool forces the point of this drilling tool, on at least one drilling run, to follow a helical or pseudohelical trajectory depending on the desired shape and dimensions of the drill hole. An associated drilling device is also described.

Method of Drilling Hole and Coolant Used In Hole Drilling Work

Provided is a method of drilling a hole in a drilling object by using a hole drilling device including: a drill bit including a cutting edge on a distal end thereof; and an electric drill , which rotates the drill bit , the method including a cutting step of rotating the drill bit to drill a hole in the drilling object in a state where a water-soluble gel coolant is applied to the distal end of the drill bit 1. A method of drilling a hole in a drilling object by using a hole drilling device including: a drill bit including a cutting edge on a distal end thereof; and a handheld electric tool that rotates the drill bit , the method comprisinga cutting step of rotating the drill bit to drill a hole in the drilling object in a state where a water-soluble gel coolant is applied to the distal end of the drill bit.2. The method of drilling a hole according to claim 1 , further comprising a coolant feeding step of applying the coolant to the distal end of the drill bit claim 1 , whereinthe coolant feeding step is performed before the cutting step or during the cutting step.3. The method of drilling a hole according to claim 1 , whereina major component of the coolant is a water-soluble organic solvent, andthe coolant contains a hydrophilic polymeric compound as a thickener.4. The method of drilling a hole according to claim 1 , whereinthe cutting edge on the distal end of the drill bit is made of grinding stone containing diamond particles.5. A water-soluble gel coolant that is applied to a distal end of a drill bit when the drill bit claim 1 , which includes a cutting edge on the distal end thereof claim 1 , is rotated to drill a hole in a drilling object. The present invention relates to a method of drilling a hole by using a hole drilling device capable of drilling a hole in concrete or the like, and also relates to a coolant used in the hole drilling.Conventionally, an electric drill has been used as an electric tool of a hole drilling device with which to drill a hole ...

MOVABLE SEAT AND RAIL DEVICE WITH THE MOVABLE SEAT

A movable seat and a rail device. The movable seat includes a main body; an air passage, an air sucking passage and an air intake passage formed in the main body; a sucker disposed under bottom face of the main body and an operation/control member mounted on the main body. When the operation/control member is positioned in a locking position, the air passage or the air intake passage keeps in a communication state and make the sucker a sucking force. When the operation/control member is positioned in a releasing position, the air passage or the air intake passage is blocked. By means of easy operation, the movable seat can create sucking force and locate or stop providing sucking force. One or more movable seats can be connected with multiple beams to form the rail device, which can be quickly located or moved. 1. A movable seat comprising:a main body;an air passage formed in the main body, the air in the air passage being able to flow out of the air passage;a sucker disposed under a bottom face of the main body; an air chamber being defined in the sucker;an air sucking passage disposed in the main body, one end of the air sucking passage communicating with the air passage, the other end of the air sucking passage communicating with the air chamber of the sucker;an air intake passage disposed in the main body, an inner end of the air intake passage communicating with the air passage, whereby air flow through the air intake passage into the air passage;a slide passage disposed in the main body and intersecting the air passage or the air intake passage;a support column disposed in the slide passage of the main body and movable along the slide passage; andan operation/control member mounted on the main body and operable between a locking position and a releasing position to drive the support column to move; when the operation/control member is positioned in the locking position, the support column being positioned in a communication position, whereby the air passage or ...

DRILL BIT

The invention relates to a rock drill comprising an insertion portion, a flute adjoined to the insertion portion, and a head portion adjoined to the flute, wherein the flute is of at least double-spiral configuration and correspondingly has at least two substantially spiral discharge grooves, to which respectively two substantially spiral flute webs forming the lateral groove walls are assigned. It is proposed that a constant spiral pitch is assigned to the first discharge groove, inclusive of the lateral groove walls thereof, along the drill longitudinal axis, and that at least one of the two flute webs assigned to the first discharge groove has or have along the drill longitudinal axis, at least in sections, a web spine width which changes, in particular, alternately. 1. A rock drill comprising an insertion portion , a flute adjoined to the insertion portion , and a head portion adjoined to the flute , wherein the flute is of at least double-spiral configuration and correspondingly has at least two substantially spiral discharge grooves , to which respectively two substantially spiral flute webs forming the lateral groove walls are assigned ,wherein a constant spiral pitch is assigned to the first discharge groove, inclusive of the lateral groove walls thereof, along the drill longitudinal axis, and in that at least one of the two flute webs assigned to the first discharge groove has or have along the drill longitudinal axis, at least in sections, a web spine width which changes, in particular alternately.2. The rock drill as claimed in claim 1 , wherein the first discharge groove claim 1 , related to the cross section perpendicular to the drill longitudinal axis claim 1 , has an identical cross sectional contour substantially over the entire flute.3. The rock drill as claimed in claim 1 , wherein the entire flute claim 1 , viewed in cross section perpendicular to the drill longitudinal axis claim 1 , in any event with respect to the configuration of the flute ...

APPARATUS FOR PUNCHING ANCHOR BOLT INSERTION HOLE

An apparatus for punching an anchor bolt insertion hole is disclosed. The apparatus enables punching work for forming the anchor bolt insertion hole, of which the bottom side is wider than an inlet, on a panel surface for constructing a concrete structure to be performed regardless of the skill of a worker. During operation, the apparatus provides the movement direction of a hammer drill into the vertical direction and the inclination direction so as to enable precise punching work, and doubly arranges springs, which are elastic devices for adjusting the movement range of the hammer drill, so as to uniformly maintain the angle and size for cutting a wall such that a cross-sectional diameter is large at a portion adjacent to the bottom of the anchor bolt insertion hole. 1. An apparatus for punching anchor bolt insertion hole , the apparatus comprising:a hammer drill adapter configured to be connected to a hammer drill exposing a drill bit so that the exposed drill bit passes through the lower portion of the hammer drill and so that the drill bit is movable in a vertical direction and in an inclined direction in a predetermined space,the hammer drill adapter comprising:a first body comprising an upper and lower cylindrical bodies, the upper cylindrical body having a fixing bolt on its side surface fastened to a fixing hole of the hammer drill, the lower cylindrical body having female screw thread on its inner surface, the diameter of the lower cylindrical body is smaller than the upper cylindrical body;a cylinder shaped drill bit fixing portion having a male screw thread on the upper outer surface so as to be screwed with the female screw thread of the first body, an intermediate protrusion on the outer surface spaced a portion from the male screw thread by a predetermined length;an inclined driving portion having a spherical upper surface with an annular protrusion formed in the center, a vertical walled side surface with the same radius in cross section, and a ...

METHOD AND APPARATUS FOR LIMITING EQUIPMENT BURDEN WHEN PENETRATING A MIXED OR COMPOSITE MATERIAL STRUCTURE INCLUDING METAL UTILIZING A HAMMER-DRILL

A method employing an apparatus in conjunction with a hammer-drill to penetrate composite metal and non-metal structure or structures including, for example, thick metal or rebar encountered during concrete, rock or masonry boring operations without requiring a change in drill equipment. 1. A method for employing an apparatus in conjunction with a hammer-drill to penetrate a portion of metal encountered during rock drilling operations without requiring a drill change , comprising the steps of:identifying a task requiring rock drilling with a hammer-drill in a location where a likelihood exists of encountering the portion of metal and where it is desirable to carry only a single drill;forming a metal-cutting bit comprising a cylindrical body formed with a first and second cylindrical sections, wherein the first section comprises a first end perpendicular to a longitudinal axis and a second end opposite thereof perpendicular to the longitudinal axis, the first section comprising a shank section, wherein the second section comprises a first end perpendicular to a longitudinal axis and a second end opposite thereof perpendicular to the longitudinal axis, the second section comprising a cutting section of a selected diameter to bore a desired diameter hole, and the first section's second end being coupled to the second section's first end so as to form the cylindrical body with a single longitudinal axis; andcoupling a minimum of one protuberance to the shank at a point a first distance from a longitudinal end of the first section opposite the second section, wherein the first distance is selected so as to prevent full insertion of the first section into a hammer-drill chuck, and wherein the distance is selected to prevent a hammer in the hammer-drill's chuck from striking the longitudinal end of first section while the hammer-drill is in operation;providing a hammer-drill wherein the hammer-drill's percussive feature is always active;selecting a masonry bit with a ...

COOLANT SUPPLY DEVICE AND ELECTRIC DRILL UNIT PROVIDED WITH COOLANT SUPPLY DEVICE

A coolant supply device attached to an electric drilling tool is configured to supply a coolant to a drilling portion at a distal end of a drill. The coolant supply device includes: a first flange member and a second flange member provided axially on a rotating shaft, the rotating shaft sharing a same axis with the drill, the first flange member being positioned at the drill side, the second flange member being positioned such that the second flange member is more distant from the drill than the first flange member; space formed between the flange members, into which a coolant is injected; a coolant supply passage formed between the first flange member and the drill and guiding the coolant in the space to the drill; and a coolant push-out mechanism configured to push the coolant out of the space toward the coolant supply passage. 1. A coolant supply device attached to an electric drilling tool and configured to supply a coolant to a drilling portion at a distal end of a drill when the drill performs drilling , the coolant supply device comprising:a first flange member and a second flange member provided on a rotating shaft, the rotating shaft sharing a same axis with the drill, the first flange member being positioned at the drill side, the second flange member being positioned such that the second flange member is more distant from the drill than the first flange member along the rotating shaft;space formed between the flange members, into which a coolant is injected;a coolant supply passage formed between the first flange member and the drill, the coolant supply passage guiding the coolant in the space to the drill; anda coolant push-out mechanism configured to push the coolant out of the space toward the coolant supply passage.2. The coolant supply device according to claim 1 , further comprising:a supply valve disposed on the coolant supply passage and configured to switch a state of the coolant between a state of being allowed to flow from the space to the ...

Method for Operating a Machine Tool, and Machine Tool Operable by the Method

A method for operating a machine tool that includes an electric motor for driving a drilling tool and an open- and closed-loop controller for open- and closed loop control of the motor power. The method includes: operating the machine tool in a tapping mode at a first rotational speed value, where the first rotational speed value is lower than a predetermined idling speed value of the electric motor; detecting a predetermined first threshold value for the motor current; reducing the motor current to a predetermined second threshold value when the first threshold value is exceeded; operating the machine tool at a second rotational speed value, where the second rotational speed value is lower than the first rotational speed value; operating the electric motor at a predetermined motor current value; and operating the controller for closed loop control of the motor power via the motor current with an oscillating action.

Drilling Tool

A drilling tool is configured to perform drilling and/or percussive work on materials such as stone, concrete and/or reinforced concrete. The drilling tool has a fastening region and a working region. The working region has a working body and at least one cutting element projecting axially and/or radially in relation to the working body. The at least one cutting element has at least one first cutting edge and at least one second cutting edge. The at least one second cutting edge is configured to serve as a replacement cutting edge and/or as an auxiliary cutting edge, and the at least one second cutting edge is set back, at least partly, in relation to the at least one first cutting edge of the drilling tool, axially along a longitudinal axis of the drilling tool, in a direction towards the fastening region. 1. A drilling tool for performing drilling and/or percussive work on materials , the drilling tool comprising:a fastening region; anda working region, the working region having a working body and at least one cutting element projecting axially and/or radially in relation to the working body, the at least one cutting element having at least one first cutting edge and at least one second cutting edge,wherein the at least one second cutting edge is configured to serve as a replacement cutting edge and/or as an auxiliary cutting edge, andwherein the at least one second cutting edge set back in relation to the at least one first cutting edge of the drilling tool, axially along a longitudinal axis of the drilling tool, in a direction towards the fastening region.2. The drilling tool according to claim 1 , wherein:during operation of the drilling tool, the at least one first cutting edge, in the case of a rotation about the longitudinal axis, defines a first envelope, and the at least one second cutting edge, in the case of a rotation about the longitudinal axis, defines a second envelope, andthe second envelope is set back in relation to the first envelope, axially ...

CORE DRILL BIT AND METHODS OF FORMING

A core drill bit can include a first region and a second region. The first region can include abrasive particles in a first bond matrix, and the second region can include abrasive particles in a second bond matrix. The first region is connected to the second region. A composition of the first bond matrix can be different from a composition of the second matrix. In a particular embodiment, the first bond matric can include a Co-containing material. 1. A core drill bit comprising an abrasive tip and a drill body , wherein the abrasive tip comprises a first region and a second region , wherein the first region comprises abrasive grains within a first bond matrix , wherein the second region comprises abrasive grains within a second bond matrix and wherein a composition of the first bond matrix is different from a composition of the second bond matrix.2. The core drill bit of claim 1 , wherein the first region is bonded to the second region.3. The core drill bit of claim 1 , wherein the first region has a first hardness RHand the second region has a second hardness RHand wherein RHis different than RH.4. The core drill bit of claim 3 , wherein RHis greater than RH.5. The core drill bit of claim 1 , wherein the first bond matrix comprises an Fe containing material.6. The core drill bit of claim 1 , wherein the first bond matrix comprises an alloy including Co.7. The core drill bit of claim 1 , wherein the first bond matrix comprises Co claim 1 , Fe claim 1 , and Cu.8. The core drill bit of claim 1 , wherein the second bond matrix comprises Co claim 1 , Sn claim 1 , or combination thereof.9. The core drill bit of claim 1 , wherein the first region comprises a beveled edge at an end distal from the second region.10. The core drill bit of claim 1 , further comprising an elemental weight percent difference between a composition of the first bond matrix and a composition of the second bond matrix of not greater than 90%.11. A core drill bit comprising:a longitudinal axis ...

SPECTACLE LENS PROCESSING DEVICE AND NON-TRANSITORY COMPUTER-READABLE MEDIUM STORING COMPUTER-READABLE INSTRUCTIONS

A spectacle lens processing device includes a drilling tool and a processor. The processor acquires a position of a hole formed in a lens and a pantoscopic angle. The pantoscopic angle is an angle in a vertical plane between a visual axis of a user and an optical axis of the lens when the user wears spectacles in which the lens after processing is mounted and faces forward. The processor determines, based on the acquired pantoscopic angle, a relative angle between the drilling tool and the lens when the hole is formed in the lens in the position of the hole. 1. A spectacle lens processing device comprising:a drilling tool that forms a hole in a lens; anda processor,wherein acquires a position of the hole formed in the lens,', 'acquires a pantoscopic angle, the pantoscopic angle being an angle in a vertical plane between a visual axis of a user and an optical axis of the lens when the user wears spectacles in which the lens after processing is mounted and faces forward, and', 'determines, based on the acquired pantoscopic angle, a relative angle between the drilling tool and the lens when the hole is formed in the lens in the position of the hole., 'the processor'}2. The spectacle lens processing device according to claim 1 , whereinthe processor acquires the pantoscopic angle specified by an operator operating an operation unit.3. The spectacle lens processing device according to claim 1 , whereinthe processor determines the relative angle based on one of a shape of the lens to be processed and a shape of a demonstration lens mounted in a rimless frame, on the acquired position of the hole, and on the acquired pantoscopic angle.4. The spectacle lens processing device according to claim 3 , wherein determines a provisional relative angle between the drilling tool and the lens based on one of the shape of the lens to be processed and the shape of the demonstration lens mounted in the rimless frame, and on the acquired position of the hole, and', 'determines the ...

Drill Head Insert or Drill Head Attachment and Drill

A drill head insert or drill head attachment, in particular a drill plate made of hard metal, for a rock drill, includes cutting edges ( 20, 20 a ) configured on the feed side which extend from a tip of the drill ( 18 ) rearward in a receding manner to an outer face ( 12, 14 ) of the drill plate ( 10 ). A drill plate ( 10 ) is substantially configured in the form of a roof when viewed from the side. A free face ( 24, 24 a ) at the cutting edge ( 20, 20 a ) abuts against a cutting face ( 22, 22 a ) along a substantial part of its extension between the tip of the drill ( 18 ) and the outer face ( 12, 14 ). A substantially smooth contour of the cutting edge ( 20, 20 a ) is interrupted by at least one projection ( 30, 30 a, 30 b ) which projects beyond the cutting edge ( 20, 20 a ) in the feed direction.

DUCTILE MODE DRILLING METHODS FOR BRITTLE COMPONENTS OF PLASMA PROCESSING APPARATUSES

A method of drilling holes comprises ductile mode drilling the holes in a component of a plasma processing apparatus with a cutting tool wherein the component is made of a nonmetallic hard and brittle material. The method comprises drilling each hole in the component by controlling a depth of cut while drilling such that a portion of the brittle material undergoes high pressure phase transformation and forms amorphous portions of the brittle material during chip formation. The amorphous portions of the brittle material are removed from each hole such that a wall of each hole formed in the component has an as drilled surface roughness (Ra) of about 0.2 to 0.8 μm. 1. A method of ductile mode drilling holes in a component of a plasma processing apparatus with a cutting tool wherein the component is made of a nonmetallic hard and brittle material comprising:drilling each hole in the component by controlling a depth of cut while drilling such that a portion of the brittle material undergoes high pressure phase transformation and forms amorphous portions of the brittle material during chip formation; andremoving amorphous portions of the brittle material from each hole such that a wall of each hole formed in the component has an as drilled surface roughness (Ra) of about 0.2 to 0.8 μm.2. The method of claim 1 , further comprising subjecting the cutting tool to intermittent ultrasonic cleaning before drilling a new hole in the component while ductile mode drilling the component of a hard and brittle material.3. The method of claim 1 , wherein the hard and brittle material is selected from the group consisting of ceramic claim 1 , silicon-containing claim 1 , and quartz material.4. The method of claim 1 , wherein the ductile mode drilling is performed with a drill speed of about 20 claim 1 ,000 to 60 claim 1 ,000 revolutions per minute claim 1 , a feed rate at about 0.5 to 1.5 inches per minute claim 1 , a peck depth of about 0.001 to 0.004 inch claim 1 , and a depth of cut ...

DRILL BIT

A drill bit that serves to remove mineral materials and that consecutively has on a longitudinal axis () a drill head (), a helix (), an insertion end () and an impact surface () on the end face of the insertion end () that faces away from the drill head () and that serves to absorb impact along a direction of impact (), is provided. The drill head () has at least two cutting edges () and at least two blades (). The cutting edges () each have a cutting face () and a free face ().The blades () run parallel to the longitudinal axis () and adjoin the cutting edges (). The blades () each have a radially projecting tooth () that adjoins the cutting face (), whereas it adjoins the free face () either only partially or not at all. The axial dimension () of the tooth () is smaller than the axial dimension () of the blade (). 110-. (canceled)11. A drill bit serving to remove mineral materials , the drill bit consecutively on a longitudinal axis comprising:a drill head;a helix; andan insertion end, an impact surface on am end face of the insertion end facing away from the drill head, the impact surface serving to absorb impact along a direction of impact;the drill head having at least two cutting edges and at least two blades, the cutting edges each have a cutting face and a free face and the blades running parallel to the longitudinal axis and adjoining the cutting edges,the blades each have a radially projecting tooth adjoins the cutting face, the radially projecting tooth adjoining the free face either only partially or not at all, and an axial dimension of the tooth being smaller than a blade axial dimension of the blade.12. The drill bit as recited in wherein the blades have a blade free face arranged in front of the tooth in the direction of impact and behind the tooth in the direction of rotation claim 11 , a radial distance of the blade free face to the longitudinal axis being smaller than a tooth radial distance of the tooth to the longitudinal axis.13. The drill bit ...

DIAMETER EXPANSION DRILL BIT

A diameter expansion drill bit used to expand the diameter of a part of a prepared hole bored in a frame by grinding includes: a cutting-blade portion that has a plurality of separate cutting-blade portions; a cutting-blade holding portion that slidably holds the plurality of separate cutting-blade portions in a radial direction; and a shank portion that supports the cutting-blade holding portion. The plurality of separate cutting-blade portions is arranged in a peripheral direction and arranged over a plurality of stages in a shaft direction, and the plurality of separate cutting-blade portions of the respective stages is caused to slide by a centrifugal force resulting from rotation so as to spread to an outside in the radial direction with respect to the cutting-blade holding portion. 1. A diameter expansion drill bit inserted for use in a prepared hole bored in a frame and used to expand a diameter of a part of the prepared hole by grinding , the diameter expansion drill bit comprising:a cutting-blade portion that has a plurality of separate cutting-blade portions used to grind the part of the prepared hole;a cutting-blade holding portion that slidably holds the plurality of separate cutting-blade portions in a radial direction; anda shank portion that supports the cutting-blade holding portion, whereinthe plurality of separate cutting-blade portions is arranged in a peripheral direction and arranged over a plurality of stages in a shaft direction, andthe plurality of separate cutting-blade portions of the respective stages is caused to slide by a centrifugal force resulting from rotation so as to spread to an outside in the radial direction with respect to the cutting-blade holding portion.2. The diameter expansion drill bit according to claim 1 , whereinthe plurality of separate cutting-blade portions of the respective stages has different movement strokes in the radial direction.3. The diameter expansion drill bit according to claim 2 , whereinthe movement ...

Dust removal system for a handheld power tool

A method to control a power tool including the method steps: specifying the rotational speed of the drive at a first value, measuring a first amplitude of a signal, filtering the signal within a frequency range, measuring a second amplitude of the filtered signal, reducing the rotational speed of the drive to a second value if the first amplitude exceeds a first quantity and if the second amplitude exceeds a second quantity, and incrementally increasing the rotational speed of the drive to the first value, whereby each incremental increase of the rotational speed only takes place once the first amplitude remains below the first quantity for a time interval, and the second amplitude remains below the second quantity. A power tool that uses this method, includes: a drive, an acceleration sensor a filter, and a control unit.

CONCRETE RESTORATION AND ORNAMENTATION METHOD AND APPARATUS

A method and apparatus is provided to rehabilitate and beautify cracked concrete surfaces by adding channels that look like the cracks to the surface. 1. A method of rehabilitating and beautifying a surface of a body having one or more pre-existing crack by adding a plurality of channels to the surface , the method comprising the steps of:(a) supporting a tool over the surface; and(b) directing the tool against the surface to create the plurality of channels in the surface, wherein the plurality of channels are each defined by two opposite ends and a length, wherein the length is longer than a measured straight-line distance between the two opposite ends.2. The method of claim 1 , wherein the length is at least 5% longer than a measured straight-line distance between the two ends.3. The method of claim 1 , wherein at least one of the plurality of channels is non-linear over its entire length.4. The method of claim 1 , wherein the one or more pre-existing crack and the one or more plurality of channels define a border of one or more shape.5. The method of claim 4 , wherein at least two shapes share a portion of the same border.6. The method of claim 1 , wherein at least one of the plurality of channels extends from at least one of the one or more crack at angle that not is 90 degrees.7. The method of claim 1 , wherein the plurality of channels are defined by a maximum depth claim 1 , and wherein the maximum depth is one inch or less.8. The method of claim 1 , wherein the plurality of channels are configured to function as a control joint.9. The method of claim 1 , wherein the step of directing the tool comprises repeatedly directing the tool vertically up and down against the surface while also directing the tool horizontally over the surface.10. The method of claim 9 , wherein the tool is selected from the group consisting of: an impact drill claim 9 , a jack hammer claim 9 , engraver claim 9 , and a rotary hammer.11. The method of claim 1 , further comprising a ...

ONE-PIECE CUTTING HEAD FOR A DRILL BIT

A one-piece cutting head for a drill bit includes a main cutting edge that extends between radial extremities of the cutting head. The main cutting edge is disposed between main rake surfaces and main relief surfaces. Each main rake surface includes one or more rake facets, and each main relief surface includes one or more relief facets. Adjacent rake facets and relief facets define a primary transverse edge therebetween that extends away from the main cutting edge. The cutting head further includes a plurality of side cutters that are transverse to the main cutting edge and that propagate from the primary transverse edge to a radial extremity of the cutting head. Each side cutter includes a side cutting edge between a side cutting rake facet and a side cutting relief facet. 1. A one-piece cutting head for a drill bit , comprising:first and second main cutting edges extending from a central portion of the cutting head to first and second radial extremities of the cutting head, the first main cutting edge being disposed between a first main rake surface and a first main relief surface, and the second main cutting edge being disposed between a second main rake surface and a second main relief surface, wherein each main rake surface includes one or more rake facets and each main relief surface includes one or more relief facets, and wherein the first main rake surface and the second main relief surface define a first primary transverse edge therebetween and the second main rake surface and the first main relief surface define a second primary transverse edge therebetween, each primary transverse edge extending away from the main cutting edges in a transverse direction from the main cutting edges,first and second side cutters that are transverse to the main cutting edges, the first and second side cutters propagating from the first and second primary transverse edges and extending to third and fourth radial extremities of the cutting head that are different from the ...

SYSTEM FOR SECURING AN ANCHOR IN A MINERAL SUBSTRATE

The invention relates to a system for securing an anchor in a borehole in a mineral substrate, in particular concrete, mortar, or brickwork, comprising an anchor with a core section and a threaded section and comprising a furrowing tool for furrowing an internal thread in the borehole, said furrowing tool comprising the following: a main part with a leading end and a trailing end, wherein a force is applied via which a torque can be transmitted to the main part in order to rotate the furrowing tool () into the borehole and furrow the thread, and the main part has an outer surface equipped with a furrowing thread which is suitable for furrowing the internal thread into the wall of the borehole. The furrowing tool has a drive element on the leading end of the furrowing tool, said drive element being suitable for interacting with an application of force to the anchor or a part thereof which is to be screwed into the borehole machined by the furrowing tool. 148.-. (canceled)49. A system for fastening an anchor in a borehole in a mineral substrate , in particular concrete , mortar or masonry , comprising{'sub': K', 'G, 'an anchor having a core section and a thread section, the core section having a core diameter dand the thread section having an outer diameter d, and'}a grooving tool for grooving an internal thread in the borehole, the grooving tool comprising the following:a base body having a leading and a trailing end, a force application device being provided, via which a torque for screwing the grooving tool into the borehole and for grooving the thread is transmitted to the base body, the base body having an outer surface on which a grooving thread is formed, which is suitable for grooving the internal thread into the wall of the borehole, wherein the grooving tool has a drive element at its leading end, which is suitable to interact with a force application device of the anchor or a part of the same, which is to be screwed into the borehole treated with the ...

Drill Bit

A drill bit includes a tool body having a main body in the form of a cylinder. A chip removing structure is provided on the main body. The tool body has a distal end provided with a clamping slot and a cutter inlaid in the clamping slot. The cutter has at least two blade portions arranged circumferentially on the distal end of the tool body and extending radially relative to the tool body. Each of the blade portions has a front side along the drill bit's rotating direction and a back side against the rotating direction. The clamping slot covers the back side of one blade portion by an area larger than that used to cover the front side of the same blade portion.

Diameter expansion drill bit

A diameter expansion drill bit used for inserting in a prepared hole perforated in a framework to expand a diameter of a portion of the prepared hole by grinding has a plurality of blade sections that grind the portion of the prepared hole, a blade holding section that holds the plurality of blade sections movably in a radial direction respectively, and a shank section that supports the blade holding section, and the plurality of blade sections move to spread outwardly in the radial direction with respect to the blade holding section by centrifugal force due to rotation.

System for securing an anchor in a mineral substrate

Disclosed herein is a system for fastening an anchor in a borehole in a mineral substrate, in particular concrete, mortar or masonry, comprising an anchor having a core section and a thread section, and a grooving tool for grooving an internal thread in the borehole, the grooving tool comprising the following: a base body having a leading and a trailing end, a force application device being provided, via which a torque for screwing the grooving tool into the borehole and for grooving the thread is transmitted to the base body, the base body having an outer surface on which a grooving thread is formed, which is suitable for grooving the internal thread into the wall of the borehole, the following applying to the ratio of the length heff of the thread section of the anchor and the nominal diameter db of the borehole: heff/db≥10.0, preferably ≥12.0, particularly preferably ≥15.0, and in particular ≥30.0.

SYSTEM FOR SECURING AN ANCHOR IN A MINERAL SUBSTRATE

The invention relates to a system for securing an anchor in a borehole in a mineral substrate, in particular concrete, mortar, or brickwork, comprising an anchor with a core section and a threaded section and comprising a furrowing tool for furrowing an internal thread in the borehole, wherein the furrowing tool comprises the following: a main part with a leading end and a trailing end, said main part having an outer surface on which a furrowing thread is formed that is suitable for furrowing the internal thread into the wall of the borehole. The outer surface of the main part is equipped with a plurality of elevations, each of which has a cutting edge, and all of the cutting edges lie at least partly on an imaginary cylinder with a diameter (do). The cutting edges are suitable for at least partially removing the inner wall of the borehole when the furrowing tool is rotated into the borehole in order to adapt the internal wall of the borehole to the imaginary cylinder. 148.-. (canceled)49. A system for fastening an anchor in a borehole in a mineral substrate , in particular concrete , mortar or masonry , comprising{'sub': K', 'G, 'an anchor having a core section and a thread section, the core section having a core diameter dand the thread section having an outer diameter d, and'}a grooving tool, different from said anchor, for grooving an internal thread in the borehole, the grooving tool comprising the following:{'sub': '0', 'a base body having a leading and a trailing end, a force application device being provided, via which a torque for screwing the grooving tool into the borehole and for grooving the thread is transmitted to the base body, the base body having an outer surface on which a grooving thread is formed, which is suitable for grooving the internal thread into the wall of the borehole, characterized in that a plurality of elevations are formed on the outer surface of the base body, each having a cutting edge, wherein at least a section of all cutting ...

GANG DRILL APPARATUS

Disclosed is an automated drill apparatus composed of one or more gang drills mounted to a gang drill chassis, at least one powered drive wheel affixed to the gang drill chassis, and at least three pivotable support wheels. A control panel provides remote operation of drill rotation activation, drill advance, and drill bed position adjustment, and a panic off switch. A control system implements steering the automated drill apparatus and is selectable by the operator for steering in two-wheel mode or crab steer mode. The pivotable drive wheels, in conjunction with the control panel and control system, are used to position the automated drill apparatus along a slab to be drilled, and further activate one or more gang drills for drilling a slab. 1. A drilling apparatus comprising:a chassis that is moveable between worksites;a plurality of drills mounted to a drill bed, the drill bed being secured to the chassis; anda remote operating panel that is separable from the chassis and operable when remotely located with respect to the chassis.2. The drilling apparatus of claim 1 , wherein the remote operating panel communicates with the drilling apparatus via wireless communication.3. The drilling apparatus of claim 2 , wherein the remote operating panel communicates with the drilling apparatus via radio frequency wireless communication.4. The drilling apparatus of claim 1 , wherein the remote operating panel communicates with the drilling apparatus via a wired tether.5. The drilling apparatus of claim 1 , wherein the remote operating panel is disposed in a case.6. The drilling apparatus of claim 5 , wherein the case comprises at least one handle.7. The drilling apparatus of claim 5 , wherein the case comprises a strap.8. The drilling apparatus of claim 7 , wherein the strap comprises a neck strap.9. The drilling apparatus of claim 7 , wherein the strap comprises a shoulder strap.10. The drilling apparatus of claim 1 , wherein the remote operating panel is a plurality of ...

HOLE DRILLING DEVICE FOR FORMING EXPANDED-DIAMETER HOLE PORTION

A hole drilling device for forming an expanded-diameter hole portion at an inner bottom part of a mounting hole includes: a shaft including a contact surface and a tapered surface, and a cutter including a stopper provided on a side surface of the cutter, the stopper coming into contact with a surface of a drilling object. The cutter is movable between a first position and a second position. When the cutter is in the first position, the contact surface is in contact with the inner bottom part of the mounting hole, and the stopper is away from the surface of the drilling object. When the cutter is in the second position, the cutter has been pushed in forward from the first position, the cutting bit has protruded laterally from the tapered surface, and the stopper is in contact with the surface of the drilling object. 1. A hole drilling device for forming an expanded-diameter hole portion at an inner bottom part of a bottomed mounting hole formed in a drilling object , the hole drilling device comprising:a shaft including a contact surface and a tapered surface, the contact surface being formed on a front end portion of the shaft and coming into contact with the inner bottom part of the mounting hole, the tapered surface being formed on a side surface of the front end portion of the shaft and expanding toward the contact surface; anda cutter including a cutting bit formed on a front end portion of the cutter, the cutter being externally attached to the shaft such that the cutter is slidable in a forward-rearward direction, the cutting bit being guided by the tapered surface and protruding laterally from the tapered surface when the cutter slides forward along the shaft, whereinthe cutter includes a stopper provided on a side surface of a rear end portion of the cutter, the stopper coming into contact with a surface of the drilling object when the cutter slides forward along the shaft.2. The hole drilling device according to claim 1 , whereinthe cutter is movable ...

MACHINING ASSEMBLY COMPRISING A FIRST AND A SECOND ELECTRIC MOTOR, A DRIVE UNIT AND A FEED MODULE

A machining assembly with a drive unit () detachably mountable to the feed module () and moveable along a guide track on a machine stand via the feed module. The feed module is provided with a feed gear wheel () configured for engagement with a cog track on the machine stand. An electric drive motor () for rotating a spindle () and an electric feed motor () for rotating the feed gear wheel are arranged in a housing () of the drive unit. The drive unit comprises a drive member, which is rotatable by the feed motor and which is operatively connectable to the feed gear wheel via a torque transmitting coupling mechanism () when the drive unit is mounted to the feed module so as to allow the feed gear wheel to be rotated under the effect of the feed motor when the drive unit is mounted to the feed module. 11030210305210. A machining assembly comprising a drive unit () , a feed module () and a machine stand () for supporting the feed module and the drive unit , the drive unit () being detachably mountable to the feed module () to allow the drive unit to be moved along a guide track () on the machine stand () via the feed module , wherein the drive unit () comprises:{'b': '11', 'a drive unit housing (),'}{'b': 12', '11, 'a first electric motor () arranged in the drive unit housing (),'}{'b': 13', '11, 'a spindle () configured for connection to a machining tool, the spindle being rotatably mounted to the drive unit housing (), and'}{'b': 15', '11', '12', '13', '12, 'a first transmission mechanism () arranged in the drive unit housing () for transmitting torque from the first electric motor () to the spindle () so as to allow the spindle to be rotated under the effect of the first electric motor ();'}{'b': '30', 'the feed module () comprises{'b': '31', 'a feed module housing (),'}{'b': 32', '32', '31', '5, 'i': a', 'd, 'guide members (-), which are mounted to the feed module housing () and configured for engagement with said guide track (), and'}{'b': 33', '31', '6', '2', '5 ...

Drill Bit and Production Method

A drill bit has, along a drill bit axis, a drilling head, a multi-start helix made of two or more helical coils, and an insertion end. The helix has a helix slope and a pitch in a delivery region. In an outlet region of the helix, the outlet region being directed towards the insertion end, the helical coils merge continuously, within a first portion, from an orientation in alignment with the helix slope into an orientation parallel to the drill bit axis. A length of the first portion is at least one quarter of the pitch of the delivery region. The helical coils, in a second portion, are oriented parallel to the drill bit axis. 112.-. (canceled)13. A drill bit , comprising:a drilling head, a helix made of two or more helical coils, and an insertion end disposed along a drill bit axis, wherein the helix, in a delivery region, has a slope and a pitch;wherein in an outlet region of the helix, the outlet region is directed toward the insertion end and the two or more helical coils merge continuously, within a first portion of the outlet region, from an orientation in alignment with the slope into an orientation parallel to the drill bit axis;wherein a length of the first portion is at least one quarter of the pitch;wherein the two or more helical coils are, in a second portion of the outlet region, oriented parallel to the drill-bit axis.14. The drill bit according to claim 13 , wherein the delivery region and the first portion have a cross-section that is constant.15. The drill bit according to claim 13 , wherein helical grooves claim 13 , defined by respectively adjacent helical coils of the two or more helical coils claim 13 , in the delivery region and the first portion have a constant depth.16. The drill bit according to claim 13 , wherein in the first portion claim 13 , the slope decreases with respect to the drill bit axis at a rate of between 0.25 degrees and 2 degrees for each degree in a direction of rotation of the helix.17. The drill bit according to claim 16 ...

DRILLING TOOL

A drilling tool includes: a drive source; a bit attachment portion to which an end bit is attachable; a power transmission portion configured to apply a motive force to the end bit attached to the bit attachment portion; an operation portion switchable between an ON-state and an OFF-state by a manual operation and configured to receive a setting operation for setting a stop condition; and a controller configured to set the stop condition based on the setting operation, and to start driving of the drive source in response to a first switching operation for switching the operation portion from the OFF-state to the ON-state. In a state where the stop condition is set, even when the operation portion is in the ON-state, the controller stops driving of the drive source in response to the stop condition being met while the drive source is being driven. 1. A drilling tool comprising:a drive source for generating a drive force;a bit attachment portion to which an end bit is attachable;a power transmission portion configured to apply a motive force the end bit attached to the bit attachment portion by receiving the drive force;an operation portion switchable between an ON-state and an OFF-state by a manual operation, the operation portion being configured to receive a setting operation, the setting operation being an operation for setting a stop condition to stop the drive source; and a setting process to set the stop condition based on the setting operation received by the operation portion;', 'a driving start process to start driving of the drive source;', 'a driving stop process to stop driving of the drive source; and', 'an acquiring process to acquire stop condition information based on the setting operation,, 'a controller configured to performwherein the setting operation is a series of operations from a first switching operation to a second switching operation that meets a setting operation condition,wherein the controller performs the driving start process in ...

MECHANICAL SEED COUPLING

The present invention relates to an apparatus and method of manufacturing silicon seed rod in which two silicon seeds are joined into one long silicon seed rod by mechanical coupling. A mechanical seed coupler is a body in having an outer wall, an upper surface with an upper aperture, a lower surface with a lower aperture, and an inner wall surrounding an inner space. The mechanical seed couple can be of a shape including a cylinder shape, an elliptical tube shape, a rectangular tube shape and a square tube shape. Furthermore the mechanical seed coupler can be of unitary construction, made from one solid piece of material, or it can be composed of subparts. 1. A mechanical seed coupler for coupling two seed rods comprising:a body, surrounding a hollow space for accepting tips of two seed rods for coupling, having a surface on one end of the body and a surface on the other end of the body, wherein the each surface corresponds to a respective surface of each of the seed rods being coupled.2. The mechanical seed coupler for coupling two seed rods of claim 1 , wherein the two surfaces are each disposed at an angle claim 1 , relative to a horizontal surface defined by a top or bottom of the mechanical seed coupler claim 1 , respectively claim 1 , within the range of 30 to 70°.3. The mechanical seed coupler for coupling two seed rods of claim 1 , wherein the two surfaces are each disposed at a 45° angle claim 1 , relative to a horizontal surface defined by a top or bottom of the mechanical seed coupler claim 1 , respectively.4. The mechanical seed coupler for coupling two seed rods of claim 1 , wherein the body is made from polycrystalline silicon.5. The mechanical seed coupler for coupling two seed rods of claim 1 , wherein when two seed rod tips are inserted therein the seed rod tips do not contact each other.6. The mechanical seed coupler for coupling two seed rods of claim 1 , wherein the two surfaces are each disposed at an angle claim 1 , from an axis line of 0° ...

Precessional Drilling and Reaming

This document provides novel drills and/or reamers that are well-suited for making holes in a variety of materials including, but not limited to, metals, ceramics, glass, wood, plasterboard, plastics, stone, composites, synthetics, silicon or multi-layered or hybridized substrates. In some embodiments, these drilling devices have some centers of mass that are offset from the axis of rotation. Accordingly, such drills and/or reamers may rotate and cut using a precessional pattern of motion. Precessional cutting devices may display a mechanical wave pattern in relationship to the longitudinal axis of the device. If the cutting device is fabricated from a flexible material, for example Nickel-Titanium, bodily deflection of the device may result during rotation.

Hole-Drilling Device for Drilling Hole with Expanded Diameter Hole Portion

A device for drilling a hole with an expanded diameter includes: a body, a shank; a sleeve; a compression spring; a drill bit body; an expanded diameter hole portion forming member attached to a side surface of the drill bit body and configured such that a cutting bit protrudes laterally from the drill bit body when the expanded diameter hole portion forming member moves forward on the side surface; a compression spring, which urges the expanded diameter hole portion forming member rearward relative to the drill bit body; and a cam. The expanded diameter hole portion forming member is configured to move forward on the side surface of the drill bit body owing to rotation of the cam when the body moves forward relative to the sleeve. 1. A hole-drilling device for drilling a hole with an expanded diameter hole portion , the hole-drilling device comprising:a body including a shank at its rear part;a sleeve attached to a front part of the body such that the sleeve is movable relative to the body in a front-rear direction over a predetermined range, the sleeve including a contacting portion at its front end, the contacting portion coming into contact with a surface of a drilling object;a first urging unit that urges the sleeve forward relative to the body;a drill bit body provided with a drilling bit at its distal end, the drill bit body being configured such that a proximal end portion of the drill bit body is inserted in a bottomed insertion hole formed in the front part of the body, the drill bit body being inserted in and attached to the sleeve such that the drill bit body is movable in the front-rear direction;an expanded diameter hole portion forming member provided with a cutting bit at its distal end and attached to a side surface of the drill bit body such that the expanded diameter hole portion forming member is movable in the front-rear direction, the cutting bit protruding laterally from the drill bit body when the expanded diameter hole portion forming member ...

Low headroom confined space geoexchange drilling system and method

A low headroom confined space drilling system is disclosed, comprising a low headroom drilling apparatus, a drilling fluid supply system, a drilling fluid collection system, and a drilling fluid recycling apparatus for supplying a recycled drilling fluid to the drilling apparatus. A method of installing a geoexchange borehole in an interior space of a building is also disclosed, comprising installing a borehole access chamber in a floor slab of a building, positioning a low headroom floor mounted rotary drilling apparatus over the borehole access chamber, providing a pressurized drilling fluid to the drill rod string and powering a rotary downhole drilling device attached to the drill rod string to advance the borehole to a desired depth, recovering a drilling fluid and drill cuttings from the borehole, removing drill cuttings from the recovered drilling fluid using the drilling fluid recycling apparatus and returning a recycled drilling fluid to the drilling apparatus.

Quick-changing Brazed Drill

A quick-changing brazed drill includes a drill body and a quick-changing joint. The drill body is connected to the quick-changing joint detachably, and a vent hole is provided at a connection point between the drill body and the quick-changing joint. The drill body has a cylindrical structure, an interior of a front end of the drill body is hollow, and an outer side of the front end of the drill body is provided with 2-6 grooves. The quick-changing joint includes a transition block and a rear cover; a rear end of the transition block is connected to the rear cover by an external thread; a snap-fit area is provided between the transition block and the rear cover; a middle portion of the transition block is provided with a first threaded hole and is connected to a rear end of the drill body. 1. A quick-changing brazed drill , comprising: a drill body , and a quick-changing joint; wherein the drill body is connected to the quick-changing joint detachably , and a vent hole is provided at a connection point between the drill body and the quick-changing joint.2. The quick-changing brazed drill according to claim 1 , wherein the drill body has a cylindrical structure claim 1 , an interior of a front end of the drill body is hollow claim 1 , and an outer side of the front end of the drill body is provided with 2-6 grooves.3. The quick-changing brazed drill according to claim 2 , wherein the quick-changing joint comprises a transition block and a rear cover; a rear end of the transition block is connected to the rear cover by an external thread; a snap-fit area is provided between the transition block and the rear cover; a middle portion of the transition block is provided with a first threaded hole and is connected to a rear end of the drill body; the vent hole is configured at a rear end of the first threaded hole claim 2 , and a diameter of the vent hole is smaller than a diameter of the first threaded hole; a central portion of the rear cover is provided with a spline ...

METHOD AND AN INSTALLATION FOR CUTTING UP A MASS OF REINFORCED CONCRETE

Disclosed are examples of methods and systems for cutting up a reinforced concrete mass, in which a drilling tool is provided. In various embodiments, the drilling tool comprises: a drill tube earning a cutter member; a device for causing the drill tube to vibrate, the device comprising a vibration generator for generating longitudinal vibration in the drill tube; a device for injecting a drilling fluid at the distal end of the drill tube; and a device for moving the drill tube along its longitudinal direction. In the disclosed methods and systems, the reinforced concrete mass is cut up by drilling at least one hole with the help of the drill tool by causing the drill tube to vibrate while injecting the drilling fluid into the mass from the distal end of the drill tube. 1. A cutting method for cutting up a reinforced concrete mass , the method comprising: a drill tube having a longitudinal direction and presenting a distal end that carries a cutter member;', 'a device for causing the drill tube to vibrate, which device comprises a vibration generator for generating longitudinal vibration in the drill tube;', 'a device for injecting a drilling fluid into the reinforced concrete mass at the distal end of the drill tube; and', 'a device for moving the drill tube in its longitudinal direction; and, 'providing a drill tool comprisingcutting the reinforced concrete mass by drilling at least one drillhole with the help of the drill tool while causing the drill tube to vibrate with the help of the vibration generator and simultaneously injecting the drilling fluid into the reinforced concrete mass at the distal end of the drill tube.2. The cutting method according to claim 1 , further comprising:making a succession of intersecting drillholes in the reinforced concrete mass with the help of the drill tool while causing the drill tube to vibrate, thereby obtaining a continuous line of cut.3. The cutting method according to claim 2 , further comprising:in the event of one of ...

Thin drill

[Problem] To protect a leading end part of a drill having a coolant hole which is adapted for drilling a thin diameter or very thin diameter hole in a workpiece. [Solution] A coolant hole 33 is formed in a shank 3 and a shaft body 7 so as to extend through from a rear end surface 31 of the shank 3 to a leading end surface 15 of the shaft body 7 along an axis thereof. A leading end part of the coolant hole 33 is branched into a pair of discharge holes 35, at a position slightly toward a base end relative to the leading end surface 15 of the shaft body 13. The discharge holes 35 extend in the opposite directions, perpendicular to the coolant hole 33, respectively, and open at opposite side surfaces 37, 37 to define discharge ports 39, 39. A leading end opening 41 of the coolant hole 33 is closed by a bottom face 17 of the drill part 9.

Drill for Chiselling Rock

A drill bit for chiselling rock includes an impact face at an insertion end of the drill bit, a hollow shank, where a delivery passage is defined within the hollow shank, and a drill head, where the drill head has a cutting edge, an intake opening, and an intake passage and where the intake passage connects the intake opening to the delivery passage. A first portion of the intake passage which adjoins the intake opening has a first inclination with respect to a drill bit axis, a second portion of the intake passage which adjoins the hollow shank has a second inclination with respect to the drill bit axis, and the second inclination is greater than the first inclination.

Method for Setting a Screw

The invention relates to a method for setting a screw, which has an external thread in a front region and a drive in a rear region for introducing a torque into the screw, in a drilled hole in a substrate of a mineral material, in which method an internal thread is produced in the drilled hole by means of a threaded drill provided with a cutting thread, and then the screw is introduced into the drilled hole and in so doing the external thread of the screw is screwed into the internal thread, produced by the threaded drill, in the drilled hole. According to the invention, there is provision that the outside diameter of the cutting thread of the threaded drill is smaller than the outside diameter of the external thread of the screw. The invention further relates to packages comprising object for carrying out such method. 12026212021. Method for setting a screw () , which has an external thread () in a front region and a drive () in a rear region for introducing a torque into the screw () , in a drilled hole () in a substrate () of a mineral material , in which{'b': 19', '2', '10', '16, 'an internal thread () is produced in the drilled hole () by means of a threaded drill () provided with cutting thread (), and'}{'b': 20', '2', '26', '20', '19', '10', '2, 'the screw () is then inserted into the drilled hole () and the external thread () of the screw () is thereby screwed into the internal thread (), produced by threaded drill (), in the drilled hole (),'}characterized in that,{'sub': 's', 'b': 16', '10', '26', '20, 'the external diameter (Øda) of the cutting thread () of the threaded drill () is smaller than the external diameter (Øda) of the external thread () of the screw ().'}2. Method according to claim 1 ,characterized in that,{'sub': 's', 'b': 16', '10', '26', '20, 'the external diameter (Øda) of the cutting thread () of the threaded drill () is 0.85 to 0.92 times the external diameter (Øda) of the external thread () of the screw ().'}3. Method according to one ...

APPARATUS FOR LIMITING EQUIPMENT BURDEN WHEN PENETRATING A MIXED OR COMPOSITE MATERIAL STRUCTURE INCLUDING METAL UTILIZING A HAMMER-DRILL

A method employing an apparatus in conjunction with a hammer-drill to penetrate composite metal and non-metal structure or structures including, for example, thick metal or rebar encountered during concrete, rock or masonry boring operations without requiring a change in drill equipment. 113-. (canceled)14. A drill bit comprising:a cylindrical body formed with a first and second cylindrical sections;wherein the first section comprises a shank section;wherein the second section comprises cutting section;anda minimum of one protuberance coupled to the shank at a point a first distance from a longitudinal end of the first section opposite the second section, wherein the first distance is selected so as to prevent full insertion of the first section into a chuck of a hammer-drill, and wherein the distance is selected to prevent a hammer in the hammer-drill's chuck from striking the longitudinal end of first section while the hammer-drill is in operation.15. The drill bit of wherein the second section is comprised of:a cylindrical cutting section having a cylindrical side wall and a longitudinal central axis;the second section's second end comprising a circular cutting end opposite the first section, having a circumference when viewed from an axial direction thereof;a guide tip centered upon the longitudinal central axis, forming a cone with a base and an apex opposite each other, the base being coupled to the circular cutting end;the guide tip being comprised of a plurality of cutting faces formed at an angle to the circular cutting end;a plurality of helical flutes on the side wall penetrating the cylinder and extending from the cutting end toward the second section, the cutting edges comprising an intersection of the helical flutes and the cutting face.16. The drill bit of wherein the protuberance is formed during a manufacturing process and is an integral portion of the first section.17. The drill bit of wherein the protuberance is a component not integral to the ...

DRILL AND PRODUCTION METHOD FOR A DRILL

A drill bit has a shank () between a drilling head () and an insertable end () along an axis (). The shank () is provided with at least two first flutes () that run along the axis () and at least a second helical flute (). The first flutes () and the second flute () cross each other at several crossings ().The width () of the first flute steadily decreases over the area between two adjacent crossings () from one of the crossings () all the way to the narrowest place () and subsequently steadily increases all the way to the other crossing (). 16-. (canceled)7. A drill bit comprising:a shank between a drilling head and an insertable end along an axis, the shank having at least two first flutes running along the axis and at least a second helical flute, the first flutes and the second flute crossing each other at several crossings, a width of the first flutes steadily decreasing over an area between two adjacent crossings from one of the crossings all the way to a narrowest place and subsequently steadily increasing all the way to the other crossing.8. The drill bit as recited in wherein a plurality of helical ribs are delimited by the first flutes in the circumferential direction and by the second flutes along the axis claim 7 , and the helical ribs have a convex surface in the circumferential direction.9. The drill bit as recited in wherein the second flutes are wider than the first flutes.10. The drill bit as recited in wherein a radial distance between the first flutes and the axis is equal to or less than 30% smaller than the radial distance between the second flute and the axis.11. A production method for a drill bit comprising the following steps:forming a rod-like blank having a cylindrical core and at least two webs protruding radially from the cylindrical core and running along an axis of the blank, and having first flutes running in the circumferential direction between the webs and exposing the cylindrical core; androlling longitudinally a second helical ...

DAMPED ABRASIVE CUTTER

A damped abrasive cutter having a machine attaching end; an abrasive surface comprising abrasive particles disposed in a binder; a central damping body connecting the machine attaching end to the abrasive surface. The central damping body formed from a synthetic polymer having a Storage Modulus from 1000 MPa to 2500 MPa and a Loss Factor from 0.025 to 0.10. 1. A damped abrasive cutter comprising:a machine attaching end;an abrasive surface comprising abrasive particles disposed in a binder;a central damping body connecting the machine attaching end to the abrasive surface; andwherein the central damping body comprises a synthetic polymer having a Storage Modulus from 1000 MPa to 2500 MPa and a Loss factor from 0.025 to 0.10 at 25° C. and 10 Hz.2. The damped abrasive cutter of wherein the central damping body comprises polyamide 6.3. The damped abrasive cutter of wherein the central damping body comprises polyamide 6 and glass fibers.4. The damped abrasive cutter of wherein the glass fibers comprise from 1 to 50 percent by weight of the central damping body.5. The damped abrasive cutter of wherein the glass fibers comprise 30 percent by weight of the central damping body.6. The damped abrasive cutter of wherein the machine attaching end and the central damping body comprise a synthetic polymer having a Storage Modulus from 1000 MPa to 2500 MPa and a Loss factor from 0.025 to 0.10 at 25° C. and 10 Hz.7. The damped abrasive cutter of wherein the Storage Modulus obtained at 25° C. and 10 Hz is greater than the Storage Modulus obtained at 45° C. and 10 Hz for the central damping body. Brittle materials such as glass, ceramic, glass-ceramic are sensitive to chipping, cracks, or micro-cracks generated during the machining process. These cracks and chips can reduce the lifetime of the produced part or reduce its mechanical properties such as fatigue strength and flexural strength. Thermal properties are also affected and can lead to rejection of the machined part. The ...

Wedge Anchor Setting Tool and Method

A wedge anchor setting tool has a drill bit component having a drill tool receiving member and a drill bit member. A polygonal shaped element is located between the two members. A sheath component has an open passage and an opening at the terminus of each end. The first end has a polygonal shape which conforms to the polygonal element and the second end having a polygonal shape which conforms to the shape of the wedge anchor. The method of installation using the tool includes drilling a channel into a wall using the drill bit component. The sheath component is then inserted over the drill bit component and a wedge anchor is inserted into the smaller opening at the second end of the sheath component. The wedge anchor is then drilled into the wall and tightened by the drilling tool to secure an attachment member to the wall. 1. A wedge anchor setting tool for installation of wedge anchor into a solid structure , said setting tool comprising:an elongated drill bit component having first and second sections, the drill bit component comprising a drilling tool receiving member at said first section, a drill bit member at said second section, and a polygonal shaped element having a given width located between the two sections; anda separate and independent elongated sheath component having first and second ends, an open passage extending through the sheath component and between the ends, and an opening at the terminus of each end, each opening having an internal width, the first end having a polygonal shape which conforms to the shape of the polygonal element and the second end having a polygonal shape which conforms to the shape of the wedge anchor to be installed in the solid structure.2. The wedge anchor setting tool as in wherein the internal width of the opening at the first end is greater than the internal width of the polygonal shaped element and the internal width of the opening at the second end is greater than the shape of the wedge anchor being installed into ...

Magnetic base

A magnetic base for an electric machine tool, in particular for a magnetic core drilling machine. A body that is accommodated in a receiving space. At least one first magnet coil constituting an electromagnet, a coil winding of the at least one first magnet coild being wound on a bobbin and a magnetic force of which is switchable between a maximum resultant holding force and a minimum resultant holding force. The coil winding of the magnet coil has two end sections that are each connected to a connecting cable that serves to make electrical contact between the magnetic coil and the electric machine tool. The body has a first side adapted to be coupled to the electric machine tool and has an opposite second side adapted to be placed on a workpiece that is to be processed. End sections of the coil winding are connected to the connecting cables.

Drilling Tool

A drilling tool, in particular a rock drill, extends along a longitudinal axis and includes a drill head, an insertion end, a main body, a sleeve element, a conveying portion arranged between the drill head and the insertion end, and at least one conduit that extends along the conveying portion. The conduit is located radially between the sleeve element and the main body. The sleeve element is rotatably mounted on the main body. 1. A drilling tool comprising:a drilling head;an insertion end;a main body;a sleeve element;a conveying region arranged between the drilling head and the insertion end; andat least one conveying channel that extends along the conveying region,wherein the drilling tool extends along a longitudinal axis,{'b': '36', 'wherein the conveying channel () is arranged radially between the sleeve element and the main body, and'}wherein the sleeve element is rotatably mounted on the main body.2. The drilling tool as claimed in claim 1 , wherein the conveying channel is defined by a groove in the main body and/or in the sleeve element.3. The drilling tool as claimed in claim 1 , wherein the sleeve element is connected in a rotationally fixed manner to a suction extraction adapter claim 1 , which is configured to connect the drilling tool to a suction extraction device.4. The drilling tool as claimed in claim 3 , wherein the sleeve element is connected in a form-fitting and/or force-fitting manner to the suction extraction adapter.5. The drilling tool as claimed in claim 3 , wherein the sleeve element is connected to the suction extraction adapter in a materially bonded manner.6. The drilling tool as claimed in claim 1 , wherein the sleeve element is mounted axially on the main body in at least one direction via a securing element.7. The drilling tool as claimed in claim 6 , wherein the securing element is realized as a securing ring arranged on a side of the sleeve element that faces away from the drilling head.8. The drilling tool as claimed in claim 6 ...

SYSTEMS, METHODS, AND APPARATUS FOR RELIABLY INSTALLING SURVEY TAGS

In one embodiment, a system includes a counterbore drill bit, pre-cut lead rods of predetermined length, and a tapper tool. The counterbore drill bit includes a stop collar to drill counter bored holes with a first hole portion having a first diameter to a first depth below a surface of a material and a second hole portion having a second diameter less than the first to a second depth below the surface. The lead rods are inserted into the counter bored holes. The tapper tool mashes the second end of each lead rod in the one or more counterbored holes to expand and friction fit then in the counter bored holes. The system further includes circular survey tags insertable into the first hole and fasteners with a head and a shaft insertable through a center hole in the survey tags to retain the tags coupled to the lead rods.

TOOL FOR ROUGHENING A BOREHOLE SURFACE

A tool for roughening a borehole surface. The tool includes a coupling portion for clamping the tool in a drilling machine; and a tool head for machining the borehole surface, where the tool head comprises a cutter that is circumferentially disposed on the tool head, and where the tool head has at least one slit, which passes through from one side to the other and which, starting from an end face of the tool head, and extends axially along a longitudinal axis of the tool. 1: A tool for roughening a borehole surface , comprising:a coupling portion for clamping the tool in a drilling machine; anda tool head for machining the borehole surface,wherein the tool head comprises a cutter that is circumferentially disposed on the tool head, andwherein the tool head has at least one slit, which passes through from one side to the other and which, starting from an end face of the tool head, and extends axially along a longitudinal axis of the tool.2: The tool according to claim 1 ,the tool head has at least two radially resilient arms, which extend along the slit and at free end portions thereof, adjacent to the end face carry the cutter.3: The tool according to claim 1 ,the tool head has at least two mutually intersecting slits that extend, starting from an end face of the tool head, axially along the longitudinal axis of the tool.4: The tool according to claim 3 , whereina first slit has a greater length along the longitudinal axis of the tool than a second slit.5: The tool according to claim 3 , whereinthe slits intersect one another at an angle smaller than or equal to 90°.6: The tool according to claim 1 , whereinthe tool is configured symmetrically at least in portions.7: The tool according to claim 1 , whereinthe slit, at bottom facing away from an end face thereof, has a concave rounding.8: The tool according to claim 1 , whereinthe cutter comprises at least two carbide and/or diamond pins pointing radially away from the longitudinal axis of the tool and are ...

TOOL HEAD AND GLASS OR GLASS CERAMIC ARTICLE PRODUCIBLE USING THE TOOL HEAD

A tool head capable of introducing deep recesses into hard and brittle material such as glass and glass ceramics is provided. The tool head includes a hollow cylindrical abrasive body merging into a hollow shank. The hollow cylindrical abrasive body has an end face with a central abrasive area at the location of a cylinder axis. The central abrasive area is connected with the inner wall surface of the hollow cylindrical abrasive body by at least one web. The end face of the abrasive body, the web, and at least a portion of the outer wall surface of the abrasive body are covered with abrasive. The hollow shank has at least one opening to the interior between the at least one web and the inner wall surface of the abrasive body. 1. A tool head for drilling and milling of recesses into glass or glass ceramics , comprising:a hollow shank;a hollow cylindrical abrasive body which merges into the hollow shank, the abrasive body having a central abrasive area provided at an end face of the abrasive body at a cylinder axis of the abrasive body,wherein the central abrasive area is connected with an inner wall surface of the abrasive body by at least one web,wherein the end face, the at least one web, and at least a portion of an outer wall surface of the abrasive body are covered with abrasive, andwherein the abrasive body has at least one opening to an interior of the abrasive body, the at least one opening being between the at least one web and the inner wall surface of the abrasive body.2. The tool head as in claim 1 , wherein the central abrasive area and the at least one web are at the same level as the end face claim 1 , so that the end face claim 1 , the at least one web claim 1 , and the central abrasive area form an abrasive surface in a plane defined by the end face and interrupted by the at least one opening.3. The tool head as in claim 1 , wherein the abrasive comprises abrasive grits embedded in a matrix.4. The tool head as in claim 3 , wherein the abrasive grits ...

TREATING PARTICULATE AND CONNECTING SLAB PORTIONS

A method of treating particulate, in substance including selecting a load based on a planned in use loading of the particulate; applying the load to the particulate; injecting material below the load; and removing the load. 151-. (canceled)52. A method , of treating particulate , comprising:selecting a load based on a planned in use loading of the particulate;applying the load to the particulate;injecting material below the load;allowing the injected material to set;injecting further material below the set material; andremoving the load.53. The method of including creating a hole in the set material and wherein the injecting further material is injecting through the hole so created.54. The method of wherein the load is selected to exert a pressure of at least 1 claim 52 ,000 kg/maveraged over the area of the particulate in need of treatment.55. The method of wherein the load is further particulate.56. The method of including claim 52 , prior to the injecting claim 52 , at least partly drying the particulate to reduce resistance to injection.57. The method of wherein the at least partly drying is to reduce ground water pressure by about 40 kPa to about 80 kPa.58. The method of wherein the at least partly drying is or includes vacuuming.59. The method of including sequentially so injecting at a plurality of locations.60. The method of wherein a first of the sequential injections is in substance at a centre of an or the area of the particulate in need of treatment.61. The method of including reducing a rate at which the material is injected to allow time for the effect(s) of injection to become apparent.62. The method of wherein the reducing is or includes periodically pausing the injection.63. The method of including monitoring the effect(s) of injection and discontinuing injection in response to the monitoring.64. The method of wherein the monitoring includes monitoring at two or more spaced locations.65. The method of wherein the monitoring is or includes monitoring ...

Automatic machine and method for automatically drilling and milling glass sheets arranged vertically

An automatic machine for drilling and milling substantially flat glass sheets includes a machine body; an input conveyor provided with a motorized roller conveyor or roller belt that conveys the glass sheet by its lower edge; an input conveyance surface provided with idle gliding wheels; an output conveyor provided with a motorized roller conveyor or motorized belt that conveys the glass sheet by means of its lower edge; and an output conveyance surface provided with idle gliding wheels. The machine further includes at least one carriage provided with synchronous horizontal motion along the longitudinal axis X2; and at least one pair of working heads provided independently with a synchronous vertical motion for adjustment and feeding along the axes Y1 and Y2, wherein, each head bears a tool provided with rotary motion (cutting) and feeding motion along the axes Z1 and Z2.

WOOD-DRILL ADAPTER SYSTEMS

A wood-drill adapter system having a wood-drill adapter assembly. The wood-drill adapter assembly includes a core-bit-blank, an adapter-insert, and a set-screw. The core-bit-blank includes a hollow-tubular body, with the hollow-tubular-body including a hole; and the cap includes a cap-plate, and a threaded-coupler. The wood-drill adapter assembly is useful for allowing a user to use a coring-rotary-tool typically used for concrete drilling/coring to drill a circular-opening in a wooden-material using the wood-boring tool. The adapter-insert includes an upper-disc, a tubular-body, a lower-disc, and a set-screw-receiver. The upper-disc includes an upper-face, a lower-face, an outer-circumference, and an upper-aperture. The lower-disc includes an upper-surface, a lower-surface, an external-circumference, and an internal-circumference. The tubular-body includes an outside-circumference, an inside-circumference, an upper-rim, and a lower-rim. 1. A wood-drill adapter system comprising: [ [ 'a hole;', 'a hollow-tubular body including;'}, a cap-plate; and', 'a threaded-coupler;, 'a cap comprising;'}], 'a core-bit-blank comprising;'}, [ an upper-face;', 'an lower-face;', 'an outer-circumference; and', 'an upper-aperture;, 'an upper-disc comprising;'}, an outside-circumference;', 'an inside-circumference;', 'an upper-rim; and', 'a lower-rim;, 'a tubular-body comprising;'}, an upper-surface;', 'a lower-surface;', 'an external-circumference; and', 'an internal-circumference;, 'a lower-disc comprising;'}, 'a set-screw-receiver; and, 'an adapter-insert comprising;'}, 'a set-screw;, 'a wood-drill adapter assembly comprising;'}wherein said wood-drill adapter system comprises said wood-drill adapter assembly in functional combination;wherein said wood-drill adapter assembly comprises said core-bit-blank, said adapter-insert, and said set-screw in functional combination;wherein said core-bit-blank comprises said hollow-tubular body, and said cap in functional combination;wherein said ...

Drilling Tool

A drilling tool, in particular a rock drilling tool, for a portable machine tool, includes an axis of rotation, at least one spiral path, and at least one wear surface transition. The at least one spiral path is coiled about the axis of rotation along the axis of rotation and includes at least one wear surface having at least one bandwidth. There is a change in the at least one bandwidth of the at least one wear surface at a position of the at least one wear surface transition. 1. A drilling tool for a portable machine tool , comprising:at least one spiral thread wound around an axis of rotation of the drilling tool along the axis of rotation, the at least one spiral thread including at least one wearing surface having at least one width; andat least one wearing surface transition, at a position of which the at least one width of the at least one wearing surface is changed.2. The drilling tool as claimed in claim 1 , wherein the at least one width decreases downstream of the at least one wearing surface transition along the axis of rotation.3. The drilling tool as claimed in claim 1 , wherein the at least one wearing surface decreases downstream of the at least one wearing surface transition along the axis of rotation.4. The drilling tool as claimed in claim 1 , wherein a thread height of the at least one spiral thread is changed downstream of the at least one wearing surface transition along the axis of rotation.5. The drilling tool as claimed in claim 4 , wherein the thread height increases downstream of the at least one wearing surface transition along the axis of rotation.6. The drilling tool as claimed in claim 1 , further comprising:at least one spiral thread change at a position of which a number of the at least one spiral threads are changed.7. The drilling tool as claimed in claim 1 , further comprising:at least one drilling head tip; andat least one spiral thread change, at a position of which a number of the at least one spiral threads are changed,wherein ...

METHOD AND APPARATUS FOR MANUFACTURING COUNTERTOP

The present disclosure provides a method for manufacturing a countertop, where a countertop workpiece may be easily secured to a workpiece-mounting device during the machining thereof, leading to good precision and standardization. This may be achieved using a suction of the countertop workpiece via air intake in the mounting device. Further, the present disclosure provides a countertop machining apparatus including a vacuum chamber divided into a multiple of vacuum sub-chambers disposed in a work table, and a suction panel disposed on the chamber. In this configuration, a number of the vacuum sub-chambers to be kept in a vacuum state may be adjusted. This may lead to a reduction of a power consumption required to suction the countertop workpieces. 1. A method for manufacturing a countertop , the method comprising:providing a countertop workpiece;providing a workpiece-mounting device, the device including a pump for air intake; a vacuum plate having a first through-hole defined therein, the first hole being coupled to the pump and acting as an air flow channel during activation of the pump; and a first work plate disposed on the vacuum plate, and having a multiple of second through-holes defined therein;mounting the countertop workpiece on the first work plate of the workpiece-mounting device;blocking non-screened holes of the second through-holes using a blocker,wherein the non-screened holes are not screened by the mounted the countertop workpiece;activating the pump to intake air via the first through-hole and the second through-hole to allow suction of the countertop workpiece to the workpiece-mounting device; andcutting a top portion of the countertop workpiece suctioned to the workpiece-mounting device.2. The method of claim 1 , further comprising:providing the vacuum plate having a multiple of air intake grooves defined in a top portion thereof, and the multiple of the air intake grooves extending in mutually-orthogonal directions; andactivating the pump such ...

TOOL FOR ROUGHENING A BOREHOLE SURFACE

A tool for roughening a borehole surface. The tool includes a coupling portion for clamping the tool; a tool head for machining the borehole surface; and an extraction duct. The coupling portion is disposed at a first end of a tool shank and the tool head at an opposite, second end of the tool shank. The tool head has a cutter disposed circumferentially on the tool head. The tool head has a slit, which passes through from one side to the other and which, starting from an end face of the tool head, extends axially along a longitudinal axis of the tool. The extraction duct extends at least partly axially along the longitudinal axis of the tool for extraction of drilling dust. The extraction duct, starting from the end face of the tool head, extends inside the tool shank and discharges circumferentially into a connecting opening in the tool shank. 1: A tool for roughening a borehole surface , the tool comprising:a coupling portion for clamping the tool in a drilling machine;a tool head for machining the borehole surface; andan extraction duct,wherein the coupling portion is disposed at a first end of a tool shank and the tool head at an opposite, second end of the tool shank andwherein the tool head comprises at least one cutter disposed circumferentially on the tool head,wherein the tool head has at least one slit, which passes through from one side to the other and which, starting from an end face of the tool head, extends axially along a longitudinal axis of the tool,wherein the extraction duct extending at least partly axially along the longitudinal axis of the tool for extraction of drilling dust, andwherein the extraction duct, starting from the end face of the tool head, extends inside the tool shank and discharges circumferentially into a connecting opening in the tool shank.2: The tool according to claim 1 , which further comprises:an adapter, which circumferentially surrounds the tool shank in the region of the connecting opening and which has a connecting ...

Twist drill and production method

A method for producing a twist drill has the following steps. A blank is shaped to form a semi-finished product. The semi-finished product is formed from a core, coaxial with the drill axis, having a radius and a number of webs, arranged on the core, having a height. The semi-finished product has a constant cross section along the drill axis. The webs have a first portion which adjoins the core and in which a width of the web remains constant or decreases in the circumferential direction with increasing radial distance from the drill axis. The webs have a second portion which adjoins the first portion and in which the width of the web increases in the circumferential direction with increasing radial distance from the drill axis. The webs of the semi-finished product are shaped into helical segments using a plurality of rolling tools that annularly enclose the semi-finished product and roll on the webs along the drill axis. The rolling tools have teeth that are inclined with respect to the drill axis. A height of the helical segments is less than the height the webs. Helical segments formed from adjacent webs are in contact with one another in a closing fold. The invention also relates to a twist drill.

CURVED COVER GLASS AND METHOD FOR MANUFACTURING SAME, AND GLASS MEMBER, DISPLAY DEVICE, AND CURVED GLASS

A curved cover glass includes a plate-like glass body having a first surface, a second surface facing the first surface and at least one end face. The plate-like glass body has an average thickness of 5 mm or less. Among tangential directions on the first surface at an arbitrary point, when an X-axis is assumed to be a direction in which a first curvature radius Rin cross-section of the first surface in an XZ plane is minimum, the first surface has a curvature part in which the surface is bent in the X-axis direction at least at one point on the first surface. The first curvature radius Ris 10,000 mm or less. The curvature part includes at least one opening or concave part extending from the first surface to the second surface. 1. A curved cover glass comprising a plate-like glass body having:a first surface;a second surface facing the first surface; andat least one end face connecting the first surface and the second surface,{'sub': 'ave', 'the plate-like glass body having an average thickness tof 5 mm or less, whereinwhen a tangential direction from an arbitrary point on the first surface is assumed to be an X-axis and among tangential directions from the center of the first surface, a direction orthogonal to the X-axis is assumed to be a Y-axis, and a direction orthogonal to the X-axis and the Y-axis is assumed to be a Z-axis,{'sub': '1', 'the X-axis is, among tangential directions on the first surface at an arbitrary point on the first surface, a direction in which a first curvature radius Rin cross-section of the first surface in an XZ plane passing the X-axis and the Z-axis is minimum,'}{'sub': '1', 'the first surface has a curvature part in which the surface is bent in the X-axis direction at least at one point on the first surface and the first curvature radius Ris 10,000 mm or less, and'}the plate-like glass body comprises at least one opening extending from the first surface to the second surface.2. A curved cover glass comprising a plate-like glass body ...

Method for extracting a core from a percussion side wall core bullet for a digital tomographic description and direct numerical simulations

Embodiments relate generally to methods for extracting a core from a percussion side wall core bullet for a digital tomographic description and direct numerical simulations. A method for extracting a core from a percussion side wall core bullet for a digital tomographic description and direct numerical simulations includes pushing a free end of a wire of a wire saw through the core. The core is positioned within the percussion side wall core bullet. In addition, the method includes attaching the free end to a locking mechanism of the wire saw. Further, the method includes cutting the core from the percussion side wall core bullet. The method also includes removing the core from the percussion side wall core bullet.

Drill Bit

There is provided a drill bit for cutting tiles comprising a hollow body portion bearing an annular cutting surface at one end and a wax plug located within the hollow body portion, wherein an internal wall of the hollow body portion has at least one region of reduced thickness so as to provide one or more channels along which melted wax can flow to reach cutting surface. The channels can be provided by an offset central passage within body portion, or as elongate grooves around the internal wall of the hollow body portion. The channels can be helical grooves. 1. A drill bit for cutting tiles , comprising:a hollow body portion bearing an annular cutting surface at one end and a wax plug located within the hollow body portion,wherein an internal wall of the hollow body portion has at least one region of reduced thickness and the hollow body portion is formed by a passage offset from the cross-sectional center of the hollow body portion.2. The drill bit according to claim 1 , wherein the hollow body portion is cylindrical.3. The drill bit according to claim 1 , wherein the region of reduced wall thickness extends along the hollow body portion at least as far as the wax plug.4. The drill bit according to claim 1 , wherein the passage is offset from the cross-sectional center of the hollow body portion by 50% or less of the width of the hollow body portion.5. The drill bit according to claim 1 , wherein the passage is offset from the cross-sectional center of the hollow body portion so that the region of reduced wall thickness has a minimum wall thickness of 0.5 mm.6. The drill bit according to claim 1 , wherein at least one channel is formed within an internal wall of the hollow body portion.7. The drill bit according to claim 6 , wherein a plurality of channels is provided.8. The drill bit according to claim 7 , wherein the plurality of channels is circumferentially equispaced grooves around the internal wall of the hollow body portion.9. The drill bit according to ...

TOOL

A tool for machining materials has a main part and one or more blades. The main part is made of a low-alloy steel. The socket is welded to the main part, and the blade edges are made of a hard metal. The hard metal contains at least 82 vol. % of tungsten carbide and a metallic binder made of a cobalt-nickel-based alloy. The hardness of the hard metal is greater than 1350 HV10. The socket has a sintered composite, and 40 vol. % to 60 vol. % of the composite is composed of a metal carbide and a metallic binder. At least 95 vol. % of the metallic binder is made of nickel, and the hardness of the composite is less than 800 HV10. 1: A tool for mechanical machining of materials , said tool comprising:a main body comprising a low-alloy steel, andone or more sintered cutters, which have at least one cutting edge and a base, wherein the base is welded onto the main body,wherein the cutting edge consists of a hard metal, which contains at least 82 vol % of tungsten carbide, and a first metallic binder comprising a cobalt-nickel-base alloy or a cobalt-base alloy, wherein the hardness of the hard metal is greater than 1300 HV10, andwherein the base consists of a composite which comprises 40 vol % to 60 vol % of metal carbide, and a second metallic binder, wherein the second metallic binder consists of at least 95 vol % of nickel, and wherein the hardness of the composite is smaller than 800 HV10.2: The tool according to claim 1 , wherein the hardness of the composite is greater than 500 HV10.3: The tool according to claim 1 , wherein the hardness of the hard metal is smaller than 1600 HV10.4: The tool according to claim 1 , wherein cobalt and nickel together contribute at least 80 vol % of the cobalt-nickel-base alloy of the hard metal.5: The tool according to claim 4 , wherein the cobalt-nickel-base alloy of the hard metal contains at least 40 vol % nickel.6: The tool according to claim 1 , wherein the cobalt-nickel-base alloy of the hard metal contains at least 80 vol % ...

Method for Manufacturing a Continuous Drill Ring for a Core Drill Bit

A method for manufacturing a continuous drill ring for a core drill bit is disclosed. The method includes forming at least two green compacts in layers in a direction of formation between a bottom side and a top side by successively applying powder layers containing a powder mixture and diamond layers containing diamond particles that are arranged in a set pattern. The green compacts are shaped into ring segments under the effect of pressure. The ring segments are joined in a circular manner and they are sintered under the effect of heat so as to obtain a continuous drill ring. 112.-. (canceled)13. A method of manufacturing a continuous drill ring for a core drill bit , comprising the steps of:producing at least two green parts by successive applications of powder layers of a powder mixture and diamond layers with diamond particles disposed in a set pattern;forming the at least two green parts into respective ring segments under pressure; andannularly assembling the ring segments and sintering the ring segments under temperature action to form the continuous drill ring.14. The method according to claim 13 , wherein the continuous drill ring includes n≧1 first green parts which are formed into first ring segments and n second green parts which are formed into second ring segments and wherein the first and the second ring segments are disposed alternately one behind the other along a circumferential direction of the continuous drill ring.15. The method according to claim 13 , wherein the continuous drill ring includes first ring segments and second ring segments claim 13 , wherein the first ring segments include a first powder mixture and first diamond particles claim 13 , and wherein the second ring segments include a second powder mixture and second diamond particles.16. The method according to claim 13 , wherein the continuous drill ring includes a number of 2n claim 13 , n≧1 equal green parts claim 13 , wherein n green parts are formed under pressure action with a ...

DRILL BIT

A drill bit has a shank, an intermediate shaft, and a cutting head and defines a longitudinal axis. The cutting head has a body having a front end, a rear end, and a peripheral sidewall, a primary cutting insert and a pair of auxiliary cutting inserts. The primary cutting insert is cross-shaped with a central portion with a cutting tip and four cutting arms each with a cutting edge extending radially outward from the central portion past the peripheral sidewall. The auxiliary cutting inserts are spaced radially outward from the central portion and circumferentially from the radial cutting arms, and have a cutting edge extending radially outward past the peripheral sidewall. A pair of primary dust egress slots and a pair of auxiliary dust egress slots are formed in the peripheral sidewall and configured to channel debris from the front end to the rear end of the body. 1. A drill bit comprising:a shank having a rear end configured to be coupled to a rotary power tool;an intermediate shaft defining a longitudinal axis and having a rear end coupled to a front end of the shank and at least one spiral flute; and a body having a rear end coupled to a front end of the intermediate shaft, a front end, and a peripheral sidewall:', 'a primary cutting insert coupled to a front end of the body, the primary cutting insert having a cross-shape with a central portion, and first, second, third, and fourth cutting arms extending radially outward from the central portion;', 'a pair of auxiliary cutting inserts coupled to the front end, each of the auxiliary cutting inserts spaced radially outward from the central portion and spaced circumferentially from each of the radial cutting arms, a first one of the auxiliary cutting inserts positioned between the first cutting arm and the second cutting arm and a second one of the auxiliary cutting inserts positioned between the third cutting arm and the fourth cutting arm;', 'a pair of primary dust egress slots formed in the peripheral ...

Method for Manufacturing a Continuous Drill Ring for a Core Drill Bit

A method for manufacturing a continuous drill ring for a core drill bit is disclosed. The method includes forming at least two green compacts in layers in a direction of formation between a bottom side and a top side by successively applying powder layers containing a powder mixture and diamond layers containing diamond particles that are arranged in a set pattern, shaping the green compacts into ring segments under the effect of pressure, sintering the ring segments under the effect of heat, and combining the sintered ring segments in a circular manner and joining the same in a frictionally engaging or integrally bonding manner at the lateral edges thereof so as to obtain the continuous drill. 112.-. (canceled)13. A method for manufacturing a continuous drill ring for a core drill bit , comprising the steps of:forming at least two green compacts by successive application of powder layers of a powder mixture and diamond layers having diamond particles;forming the at least two green compacts under an effect of pressure into ring segments;sintering the ring segments under an effect of temperature; andassembling the sintered ring segments in a circular shape and joining the sintered ring segments to each other at respective side edges by frictional engagement or integral bonding to form the continuous drill ring.14. The method according to claim 13 , wherein the ring segments are subjected to an effect of pressure during the sintering.15. The method according to claim 14 , wherein the ring segments are externally shaped by the effect of pressure during the sintering.16. The method according to claim 13 , wherein the ring segments include first ring segments and second ring segments and wherein the first and the second ring segments are disposed along a peripheral direction of the continuous drill ring in an alternating successive manner.17. The method according to claim 16 , wherein the first ring segments are formed of a first powder mixture and first diamond ...

Drill Ring for a Core Drill Bit and Method for Producing a Drill Ring

A method for producing a drill ring for a core drill bit is disclosed. The method includes constructing at least two green parts from encapsulated diamond particles, the diamond particles being covered by a powder mixture. The green parts are formed into ring segments under the effect of pressure and the ring segments are annularly assembled and sintered under temperature action to form a continuous drill ring.

Cutting tool

A fluted drill comprises, in axial sequence, a body portion, and a cutting portion. The cutting portion comprises two or more cutting edges, with each cutting edge extending from a distal end of the cutting portion, along the cutting portion towards the body portion, to the body portion. Each cutting edge has a first rake angle at the distal end of the cutting portion, progressively increasing to a third rake angle at a proximal end of the cutting portion. Each cutting edge has a first uncut chip thickness at the distal end of the cutting portion, progressively decreasing to a third uncut chip thickness at the proximal end of the cutting portion.

Hard rock coring bit assembly

Disclosed is a hard rock coring bit assembly, comprising a cone hob (10) and a saddle (20). The cone hob (10) comprises a base part (11) used for operation and a connecting part (12) which is integrated with the base part in one piece and is detachably connected in the saddle. One side of the connecting part (12) is provided with a butt joint oblique plane (13), and the width of the connecting part is gradually increased from the end close to the base part to the end far away from the base part. A fixing block (50) is also detachably connected in the saddle. A pressure-bearing oblique plane (51) attached to the butt joint oblique plane in a matching and abutting mode is formed by means of one side surface of the fixing block, and the width of the fixing block is gradually reduced from the end close to the base part to the end far away from the base part. The saddle is sleeved outside the connecting part and the fixing block. Compared with the existing welding manner, this hard rock coring bit assembly can realize quick disassembly and installation of the cone hob and the saddle, is capable of being standardized, is good in exchangeability, and is capable of improving the drilling operation efficiency. Meanwhile, the hard rock coring bit assembly is high in connecting strength, and is capable of meeting the requirements of drilling operations.

Drill and manufacturing process

Ein Bohrer 1 hat einen Bohrkopf 3 und einen Schaft 4. Der Schaft 4 hat einen Grundkörper 20, einen Aufsatz 40 und einen innenliegenden Kanal 50. Der Bohrkopf 3 ist an dem Grundkörper 20 befestigt. Der Aufsatz 40 ist an einer Mantelfläche 21 des Grundkörpers 20 befestigt und vollständig innerhalb einer den Grundkörper 20 umschreibenden zylindrischen Hüllkurve 29 angeordnet. Der innenliegende Kanal ist innerhalb des Aufsatzes und/oder zwischen dem Aufsatz 40 und der Mantelfläche 21 ausgebildet. A drill 1 has a drill head 3 and a shaft 4. The shaft 4 has a base body 20, an attachment 40 and an internal channel 50. The drill head 3 is attached to the base body 20. The attachment 40 is fastened to a lateral surface 21 of the base body 20 and is arranged completely within a cylindrical envelope curve 29 circumscribing the base body 20. The internal channel is formed within the attachment and / or between the attachment 40 and the lateral surface 21.

Drilling holes through glass spectacle lenses - using ball-head drill esp. of dental type and no lubricant to avoid chipping

Holes are drilled through a glass spectacle lens esp. a lens made of silicate glass. The lens is drilled only from one side, using a known type of ball-head drill (pref. dental type) without splinters breaking away from the edge of the drilled hole, i.e. which would impair the lens. Drilling is pref. undertaken without using a coolant or lubricant. Used for the mfr. or spectacles which do not have a frame or rims rounds the lenses, where a nosepiece and possibly sidepieces are attached via the holes. The lens need not be drilled from both sides to avoid splintering.

Dust collection system for power tool

A dust collection system for a power tool can collect, with an ordinary bit, dust with a flexible hose connected. A dust collection system for a power tool includes a power tool to receive a tip tool protruding frontward and including a tool body, a cylindrical first dust collection attachment attachable to the tool body and covering the tip tool over its entire circumference with the first dust collection attachment being attached, a second dust collection attachment attachable to the tool body and including a dust collector, and a flexible hose to connect the first dust collection attachment and the second dust collection attachment to collect dust sucked through the first dust collection attachment into the dust collector included in the second dust collection attachment.

Автоматическое вспомогательное средство при забуривании

А 2016105298 ко # РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) А 227 п 2 < < < ВО "20461 (50) МПК В28р 7/00 (2006.01) зе за (13) а зоа А ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ЗАЯВКА НА ИЗОБРЕТЕНИЕ (21)(22) Заявка: 2016105298, 18.07.2014 (71) Заявитель(и): ХИЛЬТИ АКЦИЕНГЕЗЕЛЫПАФТ (1) Приоритет(ы): (30) Конвенционный приоритет: (72) Автор(ы): 18.07.2013 ЕР 13176992.9 ПФАЙФФЕР Ральф (ОЕ), (43) Дата публикации заявки: 23.08.2017 Бюл. № 24 ДРЕКСЛЬ Тобиас (РЕ) (85) Дата начала рассмотрения заявки РСТ на национальной фазе: 18.02.2016 (86) Заявка РСТ: ЕР 2014/065469 (18.07.2014) (87) Публикация заявки РСТ: УГО 2015/007875 (22.01.2015) Адрес для переписки: 105064, Москва, а/я 88, "Патентные поверенные Квашнин, Сапельников и партнеры" (54) АВТОМАТИЧЕСКОЕ ВСПОМОГАТЕЛЬНОЕ СРЕДСТВО ПРИ ЗАБУРИВАНИИ (57) Формула изобретения 1. Способ управления станком (1), содержащим привод (10) для приведения в движение инструмента (30) и управляющий блок (50), при обработке заготовки (\), со следующими этапами: - задание первого значения скорости вращения привода (10), - измерение первой амплитуды сигнала, - фильтрация сигнала в заранее заданном диапазоне частот, - измерение второй амплитуды отфильтрованного сигнала, - уменьшение скорости вращения привода (10) до второго значения, если первая амплитуда превышает первую заранее заданную величину, а вторая амплитуда превышает вторую заранее заданную величину, и - поэтапное повышение скорости вращения привода (10) до первого значения, причем каждый шаг повышения скорости вращения осуществляют только после того как на протяжении заранее заданного временного интервала первая амплитуда остается ниже первой заранее заданной величины, а вторая амплитуда остается ниже второй заранее заданной величины. 2. Станок (1) для реализации способа по п. 1, включающий в себя - привод (10) для приведения в движение инструмента (30), - датчик ускорения (40) для измерения первой амплитуды и второй амплитуды сигнала; Стр.: 1 па 364019 10Сс У А 2016105298 ко - ...

Инструмент для придания шероховатости поверхности сверленого отверстия

РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 2018 114 711 A (51) МПК B23B 27/00 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ЗАЯВКА НА ИЗОБРЕТЕНИЕ (21)(22) Заявка: 2018114711, 20.09.2016 (71) Заявитель(и): ХИЛЬТИ АКЦИЕНГЕЗЕЛЬШАФТ (LI) Приоритет(ы): (30) Конвенционный приоритет: 23.09.2015 EP 15186465.9 (85) Дата начала рассмотрения заявки PCT на национальной фазе: 23.04.2018 R U (43) Дата публикации заявки: 23.10.2019 Бюл. № 30 (72) Автор(ы): ЛЕДЕРЛЕ Ханс-Петер (DE), ВИДЕМАНН Михаэль (DE), ОСТЕРМАЙЕР Петер (DE) (86) Заявка PCT: (87) Публикация заявки PCT: WO 2017/050730 (30.03.2017) A Адрес для переписки: 105064, Москва, а/я 88, ООО "Патентные поверенные Квашнин, Сапельников и партнеры" R U (57) Формула изобретения 1. Инструмент для придания шероховатости поверхности сверленого отверстия, с соединительным участком (12) для закрепления инструмента (10) в бурильном станке и инструментальной головкой (14) для обработки поверхности сверленого отверстия, причем соединительный участок (12) расположен на первом конце хвостовика (16) инструмента, а инструментальная головка (14) расположена на противоположном, втором конце хвостовика (16) инструмента, и причем на инструментальной головке (14) предусмотрены расположенные по окружности режущие средства (18), отличающийся тем, что инструментальная головка (14) имеет по меньшей мере одну, латерально сквозную прорезь (20), которая в аксиальном направлении простирается от торца (22) инструментальной головки (14) вдоль продольной оси (А) инструмента, и что инструмент (10) имеет вытяжной канал (11) для отсасывания буровой пыли, по меньшей мере частично простирающийся аксиально вдоль продольной оси (А) инструмента, и причем вытяжной канал (11) проходит внутри хвостовика (16) инструмента от торца (22) инструментальной головки (14) и упирается в соединительное отверстие (13) на окружности хвостовика (16) инструмента. 2. Инструмент по п. 1, отличающийся тем, что предусмотрен переходник (15), охватывающий хвостовик (16) ...

Cutting tip for core type shank

본 발명은 샹크에 결합되는 결합부와, 상기 결합부로부터 일정 폭을 가지며 연장되어 피절삭재와 접촉하며 절삭하는 절삭부를 갖는 절삭팁에 관한 것으로서, 상기 피절삭재와 접촉하는 상기 절삭부의 선단은 상기 절삭부의 폭 방향을 따라 상기 피절삭재를 향해 돌출 형성되는 것을 특징으로 한다. 이에 의해, 초기 절삭시 절삭팁의 다이아몬드 노출을 위한 사전 연마작업을 행할 필요가 없고, 또한 초기 절삭시 피절삭재와의 접촉 면적을 줄여 절삭 저항이 감소되어 절삭 속도가 증대되며, 절삭 작업이 진행됨에 따라 점차 일정 속도로 접촉면이 증가되어, 안정된 절삭성과 절삭팁의 수명을 향상시킬 수 있다. The present invention relates to a cutting tip having an engaging portion coupled to a shank and a cutting portion extending from the engaging portion and having a predetermined width and contacting the workpiece, wherein a tip of the cutting portion, which is in contact with the workpiece, And is protruded toward the workpiece along the width direction of the cut portion. Thereby, it is not necessary to perform a pre-polishing operation for exposing the diamond to the cutting tip at the initial cutting, and the contact area with the cutting tool at the initial cutting is reduced, so that the cutting resistance is reduced and the cutting speed is increased. The contact surface is gradually increased at a constant speed according to the cutting speed, and the stable cutting performance and the service life of the cutting tip can be improved.

Core bit For Core Drill

The present invention relates to a core bit for a core drill capable of completely discharging dust generated in a drilling process for a core drill. The composition is; A drill connection connected to the core drill; A cylindrical shank integrally provided with the drill connection portion; A tip provided with a plurality of teeth on the outer circumferential surface of the tip of the shank for performing a cutting operation; A dust discharging hole provided at least two along the circumferential direction of the shank, the dust discharging hole being formed so as to extend in a spiral shape from a front end to a rear end of the shank; And a dust guide hole provided in a space between the tip and the dust discharge hole to guide dust generated in the vicinity of the tip to the dust discharge hole.

Drill hole surface roughness tool

FIELD: physics.SUBSTANCE: tool comprises connection section (12) for fastening in drilling machine and tool head (14), on which cutting means (18) are arranged along circumference. Tool head (14) has at least one lateral through slot (20), which in axial direction extends from end (22) of tool head (14) along tool longitudinal axis (A), and exhaust channel (11) for suction of drilling dust, at least partially extending axially along longitudinal axis (A) of tool, wherein exhaust channel (11) passes inside tool shank (16) from end (22) of tool head (14) and enters into connecting hole (13) on shank (16) circle.EFFECT: higher convenience of operation due to reduced load on operator.16 cl, 6 dwg РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 2 713 765 C2 (51) МПК B28D 1/14 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ОПИСАНИЕ ИЗОБРЕТЕНИЯ К ПАТЕНТУ (52) СПК B28D 1/14 (2019.08) (21)(22) Заявка: 2018114711, 20.09.2016 (24) Дата начала отсчета срока действия патента: Дата регистрации: (73) Патентообладатель(и): ХИЛЬТИ АКЦИЕНГЕЗЕЛЬШАФТ (LI) 07.02.2020 23.09.2015 EP 15186465.9 (43) Дата публикации заявки: 23.10.2019 Бюл. № 30 (56) Список документов, цитированных в отчете о поиске: DE 19610442 A1, 18.09.1997. SU 438883 A1, 08.08.1974. SU 1140363 A1, 05.04.1982. SU 1609681 A1, 30.11.1990. JP 2012031631 A, 16.02.2012. (45) Опубликовано: 07.02.2020 Бюл. № 4 (85) Дата начала рассмотрения заявки PCT на национальной фазе: 23.04.2018 2 7 1 3 7 6 5 Приоритет(ы): (30) Конвенционный приоритет: R U 20.09.2016 (72) Автор(ы): ЛЕДЕРЛЕ, Ханс-Петер (DE), ВИДЕМАНН, Михаэль (DE), ОСТЕРМАЙЕР, Петер (DE) EP 2016/072240 (20.09.2016) C 2 C 2 (86) Заявка PCT: (87) Публикация заявки PCT: R U 2 7 1 3 7 6 5 WO 2017/050730 (30.03.2017) Адрес для переписки: 105064, Москва, а/я 88, ООО "Патентные поверенные Квашнин, Сапельников и партнеры" (54) ИНСТРУМЕНТ ДЛЯ ПРИДАНИЯ ШЕРОХОВАТОСТИ ПОВЕРХНОСТИ СВЕРЛЕНОГО ОТВЕРСТИЯ (57) Реферат: Инструмент содержит соединительный пыли, по меньшей мере ...

钻孔工具和用于制造钻孔工具的方法

本发明涉及一种用于便携式工具机的钻孔工具、尤其凿岩工具，所述钻孔工具具有旋转轴线(12a；12b；12c；12d)并且具有至少一个沿着所述旋转轴线(12a；12b；12c；12d)绕着所述旋转轴线(12a；12b；12c；12d)盘绕的螺旋路径(14a；14b；14c；14d)，其中，所述螺旋路径(14a；14b；14c；14d)具有至少一个磨损面(16a；16b；16c；16d)。提出，所述钻孔工具具有至少一个磨损面过渡部(18a；18b；18c；18d)，所述磨损面(16a；16b；16c；16d)的至少一个带宽(20a；20b；20c；20d)在所述磨损面过渡部的位置处改变。

Cutting portion for drill bit

FIELD: turning; drilling. SUBSTANCE: cutting portion (11) is rotatable in direction of rotation (21) about axis of rotation (22) and has annular portion (13), at least one cutting element (14) fastened to a first end of annular portion (13), and insertion element (15) which, at the end facing away from cutting elements (14), is connected to annular portion (13), on the transition to which annular support arm (49) is formed. Insertion element (15) has at least one slit-shaped clearance (26) with cross-slit (33) and connecting slit (34), wherein cross-slit (33) is arranged perpendicularly in relation to axis of rotation (22) and is connected by way of connecting slit (34) to upper edge (35) of insertion element (15). EFFECT: higher reliability of connection of the crown to the core of a drill and facilitating its removal from the base. 18 cl, 4 dwg РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 2 657 891 C2 (51) МПК B28D 1/14 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ОПИСАНИЕ ИЗОБРЕТЕНИЯ К ПАТЕНТУ (52) СПК B28D 1/14 (2006.01) (21)(22) Заявка: 2015129608, 20.12.2013 (24) Дата начала отсчета срока действия патента: (73) Патентообладатель(и): ХИЛЬТИ АКЦИЕНГЕЗЕЛЬШАФТ (LI) Дата регистрации: 18.06.2018 (56) Список документов, цитированных в отчете о поиске: JP 2002120218 A, 23.04.2002. SU 327315 A1, 26.01.1972. SU 1614917 A1, 23.12.1990. US 2007002056 A1, 25.01.2007. 21.12.2012 EP PCT/EP2012/076774; 08.05.2013 EP 13166989.7 (43) Дата публикации заявки: 27.01.2017 Бюл. № 3 (45) Опубликовано: 18.06.2018 Бюл. № 17 (86) Заявка PCT: C 2 C 2 (85) Дата начала рассмотрения заявки PCT на национальной фазе: 21.07.2015 EP 2013/077684 (20.12.2013) (87) Публикация заявки PCT: WO 2014/096359 (26.06.2014) 2 6 5 7 8 9 1 2 6 5 7 8 9 1 Приоритет(ы): (30) Конвенционный приоритет: R U R U 20.12.2013 (72) Автор(ы): ХООП, Маттеус (LI) Адрес для переписки: 105064, Москва, а/я 88, "Патентные поверенные Квашнин, Сапельников и партнеры" (54) РЕЖУЩАЯ ЧАСТЬ ДЛЯ СВЕРЛИЛЬНОЙ КОРОНКИ ( ...

钻头

本发明提供了一种钻头，其包括：刀体，具有呈圆柱形的主体，主体上开设有排屑结构，所述刀体远端设有装夹槽；刀片，镶装于所述装夹槽中；所述刀片具有配置于所述刀体远端的周向上且在刀体径向上延伸的至少两个刀片部；所述每一个刀片部具有面对钻头旋转方向的正面和背对钻头旋转方向的背面，所述装夹槽包覆同一个刀片部背面的面积大于正面的面积。所述装夹槽包覆同一个刀片部背面的面积大于包覆同一个刀片部正面的面积，既为设置于刀片部正面前方的槽口让位了更多排屑空间，也保证了刀片部工作受力时背部的支撑。

Anchor hole formation method and diameter expanding device

FIELD: manufacturing technology. SUBSTANCE: group of inventions refers to the anchor hole formation and can be used to expand the diameter. Drill for expanding the diameter is inserted and rotated in a portion of the prepared hole drilled in the concrete fixing body. Cutting blade portion of the drill for expanding the diameter is moved radially by centrifugal force to ream the portion of the prepared hole to form a diameter expansion portion. Minimum value of the centrifugal force applied for reaming the expansion area of the diameter is 0.75 N. Device for expanding the diameter comprises a drill and an electric drill, through which the drill is driven to rotate. Drill is configured to move the cutting blade portions under the action of a centrifugal force by expanding them radially outwardly with respect to the blade retaining portion. EFFECT: provides an opening for the anchor. 7 cl, 6 dwg РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 2 658 523 C2 (51) МПК B28D 1/14 (2006.01) B23B 35/00 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ОПИСАНИЕ ИЗОБРЕТЕНИЯ К ПАТЕНТУ (52) СПК B28D 1/14 (2006.01); B23B 35/00 (2006.01) (21)(22) Заявка: 2016141062, 08.10.2015 (24) Дата начала отсчета срока действия патента: (73) Патентообладатель(и): ЭфЭс ТЕКНИКАЛ КОРПОРЕЙШН (JP) Дата регистрации: 21.06.2018 R U 08.10.2015 (72) Автор(ы): ФУДЗИТА, Сого (JP) (56) Список документов, цитированных в отчете о поиске: JP 2005280243 A, 13.10.2005. WO 2014129119 A1, 28.08.2014. SU 1140363 A1, 23.04.1986. RU 2101580 C1, 10.01.1998. JP 2003145332 A, 20.05.2003. 20.11.2014 JP 2014-235843 (43) Дата публикации заявки: 19.04.2018 Бюл. № 11 (45) Опубликовано: 21.06.2018 Бюл. № 18 (85) Дата начала рассмотрения заявки PCT на национальной фазе: 19.10.2016 2 6 5 8 5 2 3 Приоритет(ы): (30) Конвенционный приоритет: JP 2015/078686 (08.10.2015) C 2 C 2 (86) Заявка PCT: (87) Публикация заявки PCT: R U 2 6 5 8 5 2 3 WO 2016/080107 (26.05.2016) Адрес для переписки: 129090, Москва, ул. Большая ...

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ВИ“? 2016105298” АЗ Дата публикации: 31.05.2018 Форма № 18 ИЗ,ПМ-2011 Федеральная служба по интеллектуальной собственности Федеральное государственное бюджетное учреждение «Федеральный институт промышленной собственности» ж 9 (ФИПС) ОТЧЕТ О ПОИСКЕ 1. . ИДЕНТИФИКАЦИЯ ЗАЯВКИ Регистрационный номер Дата подачи 2016105298/02(008582) 18.07.2014 РСТ/ЕР2014/065469 18.07.2014 Приоритет установлен по дате: [ ] подачи заявки [ ] поступления дополнительных материалов от к ранее поданной заявке № [ ] приоритета по первоначальной заявке № из которой данная заявка выделена [ ] подачи первоначальной заявки № из которой данная заявка выделена [ ] подачи ранее поданной заявки № [Х] подачи первой(ых) заявки(ок) в государстве-участнике Парижской конвенции (31) Номер первой(ых) заявки(ок) (32) Дата подачи первой(ых) заявки(ок) (33) Код страны 1. 13176992.9 18.07.2013 ЕР* Название изобретения (полезной модели): [Х] - как заявлено; [ ] - уточненное (см. Примечания) АВТОМАТИЧЕСКОЕ ВСПОМОГАТЕЛЬНОЕ СРЕДСТВО ПРИ ЗАБУРИВАНИИ Заявитель: ХИЛЬТИ АКЦИЕНГЕЗЕЛЬШАФТ, 11 2. ЕДИНСТВО ИЗОБРЕТЕНИЯ [Х] соблюдено [ ] не соблюдено. Пояснения: см. Примечания 3. ФОРМУЛА ИЗОБРЕТЕНИЯ: [Х] приняты во внимание все пункты (см. Примечания) [ ] приняты во внимание следующие пункты: [ ] принята во внимание измененная формула изобретения (см. Примечания) 4. КЛАССИФИКАЦИЯ ОБЪЕКТА ИЗОБРЕТЕНИЯ (ПОЛЕЗНОЙ МОДЕЛИ) (Указываются индексы МПК и индикатор текущей версии) Е21В 44/08 (2006.01) В230 15/08 (2006.01) 5. ОБЛАСТЬ ПОИСКА 5.1 Проверенный минимум документации РСТ (указывается индексами МПК) Е21В44/00-44/10, В23В25/06, В23В49/00, В23015/00-15/013, 15/08, 15/12. 5.2 Другая проверенная документация в той мере, в какой она включена в поисковые подборки: 5.3 Электронные базы данных, использованные при поиске (название базы, и если, возможно, поисковые термины): ЕАРАТТУ, Езрасепес, РАТЕМТСОРЕ, Ра еагсв, КОРТО, ОРТО 6. ДОКУМЕНТЫ, ОТНОСЯЩИЕСЯ К ПРЕДМЕТУ ПОИСКА Кате- Наименование документа с указанием (где необходимо) частей, ...

金刚石钻头

本发明公开了一种金刚石钻头，包括钻头基体，在该钻头基体的中心开有贯穿整个基体的冷却孔，在所述钻头基体的端部固接有金刚石磨片，该金刚石磨片为圆片状结构，在金刚石磨片的四周设有轴对称的缺口，各缺口与冷却孔连通用作冷却液通道。本发明通过在现有钻头基体上固接周边具有轴对称缺口的金刚石磨片，使缺口与冷却孔连通，中通冷却液能从钻头基体中心冷却孔导入，从金刚石磨片缺口处喷出，在确保中通冷却、排屑无阻碍的情况下，实现平底钻孔的功能。本发明结构简单，实用性强，适用范围更广。

Drilling tool and / or lifting tool

Инструмент для придания шероховатости поверхности сверленого отверстия

Изобретение относится к обработке материалов резанием и может быть использовано для придания шероховатости поверхности сверленого отверстия. Инструмент содержит соединительный участок для закрепления инструмента в бурильном станке и инструментальную головку для обработки поверхности сверленого отверстия. На инструментальной головке выполнены расположенные по окружности режущие средства и по меньшей мере одна латерально расположенная сквозная прорезь, которая проходит от торца инструментальной головки вдоль продольной оси инструмента. Указанная прорезь выполнена с закруглением на отдаленном от торца инструмента дне. Упрощается создание заданной шероховатости сверленого отверстия. 14 з.п. ф-лы, 9 ил. РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 2 737 186 C2 (51) МПК B28D 1/14 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ОПИСАНИЕ ИЗОБРЕТЕНИЯ К ПАТЕНТУ (52) СПК B28D 1/14 (2020.08) (21)(22) Заявка: 2018114712, 19.09.2016 (24) Дата начала отсчета срока действия патента: Дата регистрации: 25.11.2020 23.09.2015 EP 15186464.2 (43) Дата публикации заявки: 23.10.2019 Бюл. № 30 (45) Опубликовано: 25.11.2020 Бюл. № 33 (56) Список документов, цитированных в отчете о поиске: DE 202004003332 U1, 09.06.2004. SU 1217642 A1, 15.03.1986. SU 380439 A1, 15.05.1973. RU 72897 U1, 10.05.2008. (85) Дата начала рассмотрения заявки PCT на национальной фазе: 23.04.2018 2 7 3 7 1 8 6 (73) Патентообладатель(и): ХИЛЬТИ АКЦИЕНГЕЗЕЛЬШАФТ (LI) Приоритет(ы): (30) Конвенционный приоритет: R U 19.09.2016 (72) Автор(ы): ЛЕДЕРЛЕ, Ханс-Петер (DE), РЕННЕР, Маркус (DE), ШТРОБЕЛЬ-ШМИДТ, Райнер (DE), ПОПП, Франц (DE), ОСТЕРМАЙЕР, Петер (DE) EP 2016/072121 (19.09.2016) C 2 C 2 (86) Заявка PCT: (87) Публикация заявки PCT: R U 2 7 3 7 1 8 6 WO 2017/050677 (30.03.2017) Адрес для переписки: 105064, Москва, а/я 88, ООО "Патентные поверенные Квашнин, Сапельников и партнеры" (54) ИНСТРУМЕНТ ДЛЯ ПРИДАНИЯ ШЕРОХОВАТОСТИ ПОВЕРХНОСТИ СВЕРЛЕНОГО ОТВЕРСТИЯ (57) Реферат: Изобретение относится к обработке ...

Damped abrasive cutter

본 발명은 기계 부착 단부; 결합제 내에 배치되는 연마 입자들을 포함하는 연마 표면; 기계 부착 단부를 연마 표면에 연결하는 중앙 감쇠체를 갖는 감쇠형 연마 커터에 관한 것이다. 중앙 감쇠체는 1000 MPa 내지 2500 MPa의 저장 모듈러스 및 0.025 내지 0.10의 손실 계수를 갖는 합성 중합체로 형성된다. The present invention relates to a machine attachment end; an abrasive surface comprising abrasive particles disposed within a binder; A damping type abrasive cutter having a central damping body connecting a machine attachment end to an abrasive surface. The central damping body is formed from a synthetic polymer having a storage modulus of 1000 MPa to 2500 MPa and a loss factor of 0.025 to 0.10.

드릴 비트

본 발명의 예시적인 실시예는 드릴날의 선단에 장착되는 드릴 비트에 관한 것으로서, 드릴날 선단에 형성된 내입홈에 삽입되어 결합하는 드릴 비트에 있어서, 상기 내입홈에 삽입되어 결합되며 선단에는 "V"자형의 절삭날이 형성되고 하부면에 상기 보조팁과 대응하면서 교차하는 삽입홈을 형성된 주팁과, 상기 내입홈에 삽입되고 선단면에 상기 주팁의 삽입홈에 대응하면서 교차하는 안착홈을 형성한 보조팁을 구비하여, 드릴날 외주면에 나선형상의 요홈이 형성된 리드부와 연결되도록 주팁과 보조팁이 결합된 드릴 비트를 제작함으로써, 천공작업시 피절삭물에서 발생한 칩을 드릴날 리드부에 형성된 나선형상의 요홈을 따라 신속히 배출함으로써 향상된 작업능률을 제공하는 이점이 있다. 또한, 드릴 비트의 주팁과 보조팁이 이루는 교차각이 98°를 형성함으로써 천공작업시 시계방향으로 용이한 회전력을 제공하여 드릴 비트의 수명을 향상시키는 이점과 함께, 구멍 단면이 정원을 형성하여 삽입된 앵커볼트가 견고히 인입되어 작업자의 작업 피로도 감소는 물론 향상된 작업성을 제공하는 이점이 있다.

Post-installed anchor and its drill bit for drilling holes

孔底近くでテーパ状に拡径しているアンダーカットタイプの下孔１９に適用されるアンカー１であって、拡張部６を有するスリーブ２とこのスリーブ２に内挿されて上記拡張部６を拡張させるためのテーパ部１４が形成されたプラグ３とを備える。下孔孔底にスリーブ２が着底している状態でプラグ３を打ち込むと、拡張部６が下孔１９のテーパ面２１ａに密着するまで拡張しながら環状突起部１３と嵌合溝７が凹凸嵌合する。同時に下孔１９の孔底へのプラグ３の着底に伴い発生する孔底反力をもって上記拡張部６を下孔のテーパ面２１ａに圧接させた状態で施工が完了する。この施工完了と同時に、引張外力を加えることなしに直ちに鋼材等と同等の引張耐力を得ることができる。 An anchor 1 that is applied to an undercut type pilot hole 19 that expands in a tapered shape near the bottom of the hole, and includes a sleeve 2 having an expansion portion 6 and the expansion portion 6 inserted into the sleeve 2. And a plug 3 formed with a tapered portion 14 for expansion. When the plug 3 is driven in the state where the sleeve 2 is bottomed at the bottom of the lower hole, the annular protrusion 13 and the fitting groove 7 are uneven while the extended portion 6 expands until it contacts the tapered surface 21a of the lower hole 19. Mating. At the same time, the construction is completed in a state where the expansion portion 6 is brought into pressure contact with the tapered surface 21a of the lower hole by the bottom reaction force generated when the plug 3 is attached to the bottom of the lower hole 19. Simultaneously with the completion of this construction, it is possible to immediately obtain a tensile strength equivalent to that of a steel material or the like without applying an external tensile force.

Rock cutting machine

PURPOSE: A perforator is provided to easily cut rock by sequentially penetrating holes on the rock without using powder and to conveniently perforate deep hole of a burn cut method in blasting a tunnel. CONSTITUTION: A perforate inducer(2) inserts an inducing bar(3) on a lower inside and contains a spring(4) on an upper side, and then fixes an inducing hole on an end portion of the inducing bar. A perforator is provided to easily remove rock without generating dust and vibration while constructing road or building and penetrating a deep hole of burn cut in subway tunnel. An adapter(7) is inserted to a connect unit(6) welded(12) on a side face of the perforate inducer, and a screw unit(11) of a rod(10) is engaged to an upper side of the adapter, and then, a bit(9) is combined to a lower screw unit(8). A free face perforator(1) is used by connecting the rod into a rock drill in perforating. The rod connected to the rock drill rotates the bit by being rotated through hydraulic pressure and pneumatic pressure to perforate the hole on the rock.

一种超声辅助的陶瓷激光钻孔方法及装置

一种超声辅助的陶瓷激光钻孔方法及装置。其中，该方法包括以下步骤：将陶瓷工件固定到超声振动平台上；使用激光钻孔系统对陶瓷工件钻孔，同时，超声振动平台内的超声波发生器产生沿钻孔方向传播的超声波，使陶瓷工件沿钻孔方向超声振动；陶瓷工件加工前后均需置于酒精溶液中超声清洗。还包括：将一次钻孔后的陶瓷工件翻转；将翻转后的陶瓷工件固定到旋转超声平台上；使用旋转超声振动工具对一次钻孔进行二次加工，旋转超声振动工具沿钻孔轴向作超声振动并随主轴旋转；旋转超声对陶瓷工件的孔进行二次加工时，向孔内通入冷却液。本申请提升了激光钻孔对陶瓷工件的钻孔深度，改善了工件的钻孔质量。通过旋转超声对钻孔进行二次加工，可进一步减少孔壁锥度，提高孔径精度。