Method of and means for trueing grinding discs

... 465,874. Trueing grinding - discs. ZAHNRADFABRIK FRIEDRICHSHAFEN AKT.-GES. Aug. 12, 1935, No. 22682. Convention date, Aug. 13, 1934. Addition to 454,089. [Classes 60 and 124] A profiled grinding-disc for grinding helical gear teeth of involute form is trued by a diamond &c. tool which is guided, by means of a template, along a path corresponding to the involute curve of the tooth flanks, and either the template being given simultaneously a movement along a screw path around an axis corresponding to the axis of the gear to be ground, or the template being stationary and the tool given a movement along lines of simultaneous contact between two co-operating side flanks of the teeth of mating gears. Apparatus for carrying out the movements first mentioned above comprises a shaft 40, Figs. 2, 2a and 4, mounted between the centres of the work-slide of a gear grinding machine, the shaft having mounted thereon a casing 39, 41, 42 carrying two involute templates 43, pivoted at 44 to the casing and ...

GRINDING WHEEL DRESSER

Improvements in or relating to copying devices for machine tools

... 936,803. Trueing grinding wheels. SNOW & CO. Ltd. Nov. 9, 1960 [Nov. 18, 1959], No. 39028/59. Class 60. [Also in Group XXIX] A copying device for trueing profiled grinding wheels such as are used in machines for grinding the slideways of lathe beds comprises a stylus 29 coacting with a template 37 and fixed to one end of a bar 26 the other end of which carries a diamond-tipped tool (not shown) for operating on the grinding wheel, springs 33, 65 for urging the stylus and tool assembly into engagement with the template and grinding wheel, and a servo-device consisting of a fixed piston contained in a movable cylinder 8 for moving the spring abutments 20, 35 to maintain a substantially constant degree of spring compression. The piston is secured by an eye 15 to a bracket 16 on a carriage that is given a traversing motion parallel to the axis of the grinding wheel by a double-acting cylinder (not shown). The cylinder 8 is mounted in the carriage, which is slidable on guides 3, by leaf springs ...

GRINDING WHEEL DRESSING APPARATUS

... 1,271,653. Trueing grinding wheels. COVENTRY GAUGE & TOOL CO. Ltd. 19 May, 1969 [20 Feb., 1968], No. 8106/68. Heading B3D. [Also in Division G3] The subject matter of the present Specification is identical with that described in Specification 1,271,651 and 1,271,652 but the claims relate to a grinding wheel dressing apparatus having an electric stepping motor which is arranged for programmed operation and drives one or more dressing tools.

Improvements in or relating to the dressing of grinding wheels

... 833,494. Trueing grinding wheels. NEWALL ENGINEERING CO. Ltd., and HOARE, S. W. May 23, 1957 [May 23, 1956], No. 16002/56. Class 60. A wheel-trueing unit for grinding machines comprises diamond or like tools 33 on carriers 34 which, when given a traversing movement, are so guided by the curved portions 41 of guide means 35, 36 that the tools radius the edges 49 of the grinding wheel where the side faces meet the periphery. The carriers 34 are mounted on a member 28 reciprocated parallel to the axis of the wheel by an hydraulic piston-and-cylinder device 30 on guide-ways 29 on a member 27. The member 27 is adjustable radially of the grinding wheels on guide-ways 13 by means of a screw 17, which is in engagement with a nut 19 depending from the member 27 and rotated by a hydraulically-actuated pawl 24 and ratchet wheel 23 ; pawls 25, 26 are provided to prevent rotation of the ratchet during its dwell periods. The tools 33 have stems 37 movable axially in the carriers 34 under the control ...

Improvements in or relating to the truing of grinding wheels

... 1,034,853. Grinding. SIDKOPINGS MEKANISKA VERKSTADS A.B. Feb. 18, 1963 [March 10, 1962], No. 6492/63. Heading B3D. A truing and feeding device for the grinding wheel 1 of a centreless grinding machine comprises a truing tool 9 which is reciprocable axially of the grinding wheel between a position of rest and a reversing position, a control surface 15 located concentrically with the grinding wheel so as to be trimmed by the truing tool in the same stroke or an extension thereof, and a gauging device 16 which senses the position of the control surface and interrupts a feed means for the grinding wheel when that portion of the grinding wheel which contacts the workpiece 4 has reached a predetermined position. When the grinding wheel requires truing, the tool 9, which may be a diamond, is moved in the direction of the arrow C and urged by a spring so that a follower engages a cam to trim the grinding wheel and control surface. The tool may then be advanced a small distance before returning ...

A method and means for shaping and trimming helically formed grinding wheels

... 764,707. Truing grinding wheels. WICKMAN, Ltd. May 11, 1955 [May 24, 1954], No. 15184/54. Class 60 A peripheral helix is generated on a grinding wheel i by a rotory cutting tool u resembling a toothed wheel, the contour of the teeth of which is conjugate to that of the form to be imparted to the grinding wheel. The grinding wheel i and control wheel m formed with a peripheral helix corresponding to that to be formed on the grinding wheel are mounted on parallel axes on a pivotally-mounted arm c and driven at the same speed by a motor d through gearing e, f, g. The cutting tool u is mounted at one end of a spindle r which at the other end carries in mesh with the control wheel m a toothed wheel t similar to the cutting tool; the spindle r is mounted in a bearing q on a compound slide o, p disposed beneath the arm c. The arm c is adjustable about its pivotal axis (which is the axis of the control wheel m) by stops h so as correctly to position the grinding wheel in relation to the tool. After ...

DEVICE FOR STRAIGHTENING A WHET-STONE FOR SHARPENING A BEARING SURFACE STRUCTURE FOR A SKI

MECHANISM FOR STRAIGHTENING GRINDING WHEELS

PROCEDURE FOR MANUFACTURING RAEUMNADELN.

VORRICHTUNG ZUM ABRICHTEN EINES SCHLEIFSTEINES ZUM SCHLEIFEN EINER LAUFFLÄCHENSTRUKTUR FÜR EINEN SKI

Verfahren und Vorrichtung zum Abrichten von Schleifschnecken zum Schleifen von Evolventen-Verzahnungen nach dem Schraubwälzverfahren.

Dispositif pantographique pour le profilage d'une meule.

Procédé pour le façonnage, au moyen d'un galet d'écrasement, de la surface active d'une meule destinée au meulage de filets intérieurs et dispositif pour la mise en oeuvre de ce procédé.

Apparat zum Versehen eines Schleifrades mit einem Profil.

Vorrichtung zum Vorformen von Schleifscheiben auf die gewünschten Profile.

Schmiermittel.

Dispositif d'affûtage pour la meule d'une machine à rectifier.

Apparat zum Profilieren einer Schleifscheibe.

Mécanisme pour rectifier la meule d'une machine à tailler des roues dentées

Verfahren zum Formen einer einen schraubenlinienförmigen Verlauf aufweisenden Arbeitsfläche einer Schleifscheibe, die zur Bearbeitung von Zahnrädern und dergleichen nach dem Abwälzprinzip dient, und Maschine zur Durchführung des Verfahrens

Einrichtung zur Herstellung genauer Schleifschnecken für Zahnradschleifmaschinen, die nach dem Schraubwälzverfahren arbeiten

Roue antidérapante.

Apparat zum Versehen eines Schleifrades mit einem Profil.

Machine pour rectifier une meule

Verfahren und Einrichtung für das Aufarbeiten der Profilteile von eine Vielzahl von Profilen aufweisenden Körpern in einem Arbeitsgang

Abrichtvorrichtung für Schleifscheiben, mit mindestens zwei Abrichtwerkzeugen

Vorrichtung zum Abrichten von profilierten Schleifscheiben im Kopierverfahren

Verfahren und Vorrichtung zum Profilieren von Schleifscheiben.

Appareil d'affûtage pour une meule de machine à rectifier.

Apparat zum Leiten eines Elementes, z. B. einer Anreissnadel oder eines Schleifscheibenabrichtdiamantes, längs einer Kurve, die den Charakter einer Kreisevolvente hat.

Apparat zum Versehen eines Schleifrades mit einem Profil.

Abrichtvorrichtung für Profilschleifmaschinen

Verfahren und Vorrichtung zum Profilieren und Abrichten von Schleifscheiben zum Bearbeiten von Verzahnungen

Chablon réglable

Dispositif pour le dressage d'une meule de forme

Abrichtvorrichtung für Schleifschnecken

Kopiereinrichtung mit Pantograph an Schleifmaschinen, zum Abrichten der Schleifscheibe nach einer Schablone

Vorrichtung zum Abrichten der Schleifschnecke von Zahnradschleifmaschinen

Kopiervorrichtung mit bewegbarer Schablone zum Abziehen von Schleifscheiben für Profile mit steileren Neigungswinkeln als bei feststehender Schablone

Vorrichtung zum Abrichten profilierter Schleifscheiben.

Vorrichtung zum Abrichten profilierter Schleifscheiben.

Vorrichtung zum Abrichten von profilierten Schleifscheiben, insbesondere Gewindeschleifscheiben.

Dispositif de dressage d'une meule

Schleifscheiben-Abrichtvorrichtung

Verfahren und Vorrichtung zum schablonengesteuerten Abrichten von Profilschleifscheiben für Gewinde

Verfahren zum Abrichten von Schneckenschleifscheiben, insbesondere für Verzahnschleifmaschinen, die mittels eines Schraubenwälzverfahrens arbeiten, und Vorrichtung zur Durchführung des Verfahrens

Vorrichtung zum Abrichten von Schleifscheiben nach einem Evolventenprofil mit einstellbarem Grundkreishalbmesser

Vorrichtung mit einer Kopierschablone zum Führen der Spitze eines Werkzeuges entlang einer vorgegebenen Bewegungsbahn

Schleifmaschine

Dispositivo per ravvivare mole abrasive sagomate, destinate alla rettificatura di piste interne bombate di cuscinetti a rulli

Dispositif pour dresser une meule

Abrichtvorrichtung für Schleifscheiben mit Spitzbogenprofil

Horizontalspindel-Flächenschleifmaschine mit Profiliervorrichtung

Verfahren und Einrichtung zum Profilieren der Schleifscheiben zum Formschleifen von Schnecken

Appareil pour le dressage d'une meule profilée

Schleifscheiben-Abrichtvorrichtung

Procédé d'usinage au moyen d'un outil décrivant une courbe et appareil pour la mise en oeuvre de ce procédé

Apparatus for dressing grinding wheels

PROCEDURE AND MECHANISM FOR THE TREATMENT OF A SCHNECKENFOERMIGEN WORKPIECE WITH A SCHNECKENFOERMIGEN TOOL.

GRINDING FIXTURE.

MECHANISM FOR STRAIGHTENING DOUBLE CONE GRINDING WHEELS.

МНОГОКАРЕТОЧНЫЙ ДВУХШПИНДЕЛЬНЫЙ СИММЕТРИЧНЫЙ ШЛИФОВАЛЬНЫЙ ОБРАБАТЫВАЮЩИЙ СТАНОК

В изобретении предложен многокареточный двухшпинделыный симметричный шлифовальный обрабатывающий станок, в котором рабочий стол, содержащий поворотный стол, расположен на первой каретке, прикрепленной к переднему основанию; первая и вторая вертикальная стойки расположены в портальной конфигурации на заднем основании; горизонтальная шлифовальная головка присоединена ко второй каретке между вертикальными стойками; третья левая каретка и третья правая каретка присоединены с возможностью перемещения к первой и второй вертикальным стойкам соответственно, а левый ползун и правый ползун присоединены к третьей левой каретке и третьей правой каретке соответственно; вертикальная шлифовальная головка установлена на переднем конце правого ползуна; устройство автоматической смены инструментов содержит вертикальную шлифовальную головку, а устройство для правки профиля шлифовальный круга может быть установлено на второй каретке и на левом ползуне.

The straightening method of grinding wheel's style

MUCH BOTTOM BRACKET DOUBLE-SPINDLE SYMMETRIC GRINDING WORKING MACHINE

Process for shaped grinding wheel dressing

Grinding wheel dressing method used for grinding processing of raceway of outer ring of bearing

The invention provides a grinding wheel dressing method used for grinding processing of a raceway of an outer ring of a bearing, which utilizes a two-dimensional resultant motion between double worktables and a connecting rod to dress a working surface of a grinding wheel into a large arc surface with the same curvature radius R. The curvature radius R of the large arc surface which the dressing grinding wheel is provided with corresponds to that of the raceway of the outer ring of the bearing. And the dressing grinding wheel can be used for carrying out grinding processing on the raceway of the outer ring of the bearing. The double worktable are big and small slide blocks. When an oil cylinder pushes the big slide block to carry out reciprocating motion along the X direction, the small slide block carries out reciprocating motion in the Y direction relative to the big slide block at an adjustment distance L1 preset by a rotation nut, while the moving track of a B point of the small slide ...

Mechanism of repairing for grinding machine, being appropriate more particularly for the narrow grinding stones

Machine to draw up the grinding stones

Process and device to draw up the profile of the grinding stones to be rectified

Process and device to cut and rectify the helicoid grinding stones

Process and machine for the size of gears at high speed

Improvements in or relating to lubricating compositions

Apparatus to profile grinding stones

SKERPNINGSANORDNING

Device for phasing threaded grinding stone

A device for phasing a threaded grinding stone is phased with respect to a workpiece or a disk dresser prior to the engagement of the threaded grinding stone with the workpiece or with the disk dresser during grinding or dressing. In performing this phasing, it is detected, by means of an AE fluid sensor provided to a grinding stone head which rotatably supports the threaded grinding stone, whether the threaded grinding stone has had contact with the workpiece or the disk dresser. Subsequently, on the basis of the phase of the threaded grinding stone at the time when contact was detected, the threaded grinding stone is positioned in a phase where the aforementioned engagement is feasible.

METHOD FOR DRESSING THREADED GRINDING STONE FOR INTERNAL GEAR GRINDING

Disclosed is a method for dressing a threaded grinding stone for internal gear grinding, by which a threaded grinding stone for grinding an internal gear can be dressed with a high degree of accuracy by using a dressing gear that has been produced with a high degree of accuracy. In a state in which a barrel-shaped threaded grinding stone (), which is disposed at an axial angle (Σ) to the internal gear (W) that is conferred during the grinding of said internal gear (W), and an external tooth-type dressing gear (), which is capable of meshing with a virtual external gear () virtually formed in a manner so as to mesh with the internal gear (W) in place of the threaded grinding stone () disposed at the axial angle (Σ), have been meshed together, the threaded grinding stone () and the dressing gear () are simultaneously rotated while being moved relatively in a circular arc in the X-Y plane, whereby the dressing gear () dresses along the entire area in the axis direction of the threaded grinding stone (). 1. A method for dressing a threaded grinding wheel for internal gear grinding characterized in that a barrel-shaped threaded grinding wheel and an externally-toothed dressing gear are rotated in synchronization with each other and moved relative to each other in an arc within a plane in a state where the threaded grinding wheel and the dressing gear are in mesh with each other , so as to cause the dressing gear to dress the threaded grinding wheel over an entire area thereof in a direction of an axis of the grinding wheel , the threaded grinding wheel being disposed at a crossed axes angle to an internal work gear which is given to the threaded grinding wheel during grinding of the internal work gear , the dressing gear being capable of meshing with a virtual external gear which is virtually designed to mesh with the internal work gear in place of the threaded grinding wheel disposed at the crossed axes angle.2. The method for dressing a threaded grinding wheel for ...

GEAR GRINDING MACHINE

Provided is a gear grinding machine which can dress a grinding stone while a gear is held attached to the machine regardless of the size of the gear. To this end, the gear grinding machine () engages and mutually rotates a work (W) and the grinding stone () to thereby grind the work (W), wherein the gear grinding machine is equipped with a turning table () which holds the work (W) and rotates around a work rotating shaft (C), and a pivot table () which is pivotably supported around the work rotating shaft (C); and a dresser () which is capable of dressing the grinding stone () is provided on the pivot table (), the pivot table () being pivoted to move the dresser () between a dressing position (D) and a retreat position (D). 1. A gear grinding machine for performing grinding on a gear to be machined by rotating the gear to be machined and a grinding wheel in mesh with each other , characterized in that the gear grinding machine comprises:a rotary table configured to hold the gear to be machined and to rotate about a workpiece rotation axis;grinding wheel moving means for rotatably supporting the grinding wheel and moving the grinding wheel relative to the workpiece rotation axis;a ring-shaped turn table disposed coaxially with the rotary table at a position radially outside the rotary table, and supported turnably about the workpiece rotation axis;dressing means provided on the turn table and having a dresser capable of dressing the grinding wheel; andtable turning means for turning the turn table about the workpiece rotation axis in such a way that the dressing means moves between a dressing position where the dressing means is capable of dressing the grinding wheel supported by the grinding wheel moving means and a retreat position where the dressing means is retreated from the dressing position during the grinding.2. The gear grinding machine according to claim 1 , characterized in that the table turning means turns the turn table about the workpiece rotation ...

METHOD AND APPARATUS FOR HARD FINISHING MODIFIED GEARS

The present disclosure relates to a method for the manufacture of a workpiece having a corrected gear geometry and/or a modified surface structure, in particular by a hard finishing process, in particular generation grinding or honing. Provision is made in this respect that it is achieved by a direct generation of a wobble movement and/or of an eccentricity of the tool that a modification, in particular a profile modification or profile waviness, and/or a defined periodic flank waviness is generated on the active surface of the workpiece machined therewith. 1. A method for the manufacture of a workpiece having a corrected gear geometry and/or a modified surface structure , wherein:it is achieved by a direct generation of a wobble movement and/or of an eccentricity of a tool that a modification is generated on the active surface of the workpiece machined therewith.2. The method in accordance with claim 1 , wherein the modification includes at least one or more of a profile modification or profile waviness claim 1 , and/or a defined periodic flank waviness claim 1 , wherein the manufacture includes a hard finishing process claim 1 , and where a worm grinding wheel width is determined on the manufacture of a grinding worm wheel such that pitch ends of worm pitches at two ends of the grinding worm wheel are arranged at different angle positions at an outer periphery and thus directly cause a defined imbalance.3. The method in accordance with claim 1 , wherein a certain imbalance is directly set on balancing of the grinding tool claim 1 , so that a specific wobble movement and/or eccentricity movement of the grinding wheel is generated by this balancing by which a defined periodic flank waviness is achieved on the active surface of the workpiece ground therewith.4. The method in accordance with claim 1 , wherein the tool generates the eccentricity during dressing and/or profiling claim 1 , and wherein the tool is dressed out-of-round claim 1 , wherein the tool is dressed ...

METHOD OF DRESSING A TOOL

A tool which can be used for gear manufacturing machining of a workpiece may be dressed on a dressing machine, and the dressing may take place with line contact between the dresser and the tool. A specific modification of the surface geometry of the tool is produced by the suitable selection of the position of the dresser with respect to the tool during dressing. The specific modification of the surface geometry of the workpiece is specifiable with regard to various parameters. 1. A method of dressing a tool , which can be used for the gear tooth machining of a workpiece , on a dresser , wherein the dressing takes place with line contact between the dresser and the tool , wherein a specific modification of the surface geometry of the tool is produced by the suitable choice of the position of the dresser to the tool when dressing , wherein the specific modification of the surface geometry of the tool is specifiable at at least three rolling angles , and/or wherein a crowning of the specific modification of the surface geometry of the tool is specifiable; and/or in that the specific modification of the surface geometry of the tool is specifiable at at least two rolling angles and , in addition , an association of a specific radius of the dresser with a specific radius of the tool takes place , and/or wherein a pitch of the specific modification of the surface geometry of the tool is specifiable and , in addition , an association of a specific radius of the dresser with a specific radius of the tool takes place; and/or in that an association of two specific radii of the dresser with two specific radii of the tool takes place; and/or in that the angle of rotation of the tool and the tool width position are varied during dressing to guide the dresser along the tool and at least two further degrees of freedom of the relative position between the dresser and the tool are set independently of one another for influencing the gear tooth geometry produced by the dressing and/ ...

DOUBLE-SIDE DRESSER

The present disclosure relates to an apparatus and to a method for dressing generating grinding tools or profile grinding tools for the gear cutting processing of toothed workpieces using at least two disk-shaped dressing tools with which one or more tool regions and/or profile regions of the tool are provided with a defined dressing geometry. 1. An apparatus for dressing generating grinding tools or profile grinding tools comprising:a dressing unit having at least two tool receivers for receiving at least two disk-shaped dressing tools, wherein the tool receivers are arranged such that the dressing tools are individually brought into engagement with the grinding tool without mutually influencing one another.2. The apparatus in accordance with claim 1 , wherein the at least two tool receivers are driven independently of one another.3. The apparatus in accordance with claim 2 , wherein at least one of the two tool receivers has a driven pivot axle by which the tool is pivotable about an axis which is at an angle of 10° to 90° toward the tool axis.4. The apparatus in accordance with claim 2 , wherein at least two driven tool receivers are provided for receiving dressing tools and/or profiling tools having a different gear tooth geometry.5. The apparatus in accordance with claim 2 , wherein at least two driven tool receivers are provided for receiving dressing tools and/or profiling tools having different diameters.6. The apparatus in accordance with claim 2 , wherein at least two driven tool receivers are shaped and positioned for receiving dressing tools and/or profiling tools for dressing different profile areas of the grinding tool.7. The apparatus in accordance with claim 2 , wherein at least two driven tool receivers are shaped and positioned for receiving dressing tools and/or profiling tools for dressing different grinding tools such as grinding wheels and worm grinding wheels.8. The apparatus in accordance with claim 2 , wherein at least two driven tool ...

Tool for Cutting Teeth or for Dressing of a Fine Machining Tool Having a Set of External Teeth

The invention relates to a tool for dressing or cutting teeth of fine machining tools, which tool makes it possible to exactly reproduce, in a simple manner, the required tooth system geometry on the fine machining tool which is to be dressed or in which teeth are to be cut. The tool is annular and has a set of internal teeth, the teeth of which mesh, during the tooth-cutting or dressing operation, with the set of external teeth of the fine machining tool in which teeth are to be cut or which is to be dressed. At the same time, the tool has a central longitudinal axis, which extends through the centre point of the opening surrounded by the tool. According to the invention, the set of internal teeth is now formed on a ring element, which is at most 5 mm thick and is produced from a diamond material. The teeth of the set of internal teeth have cutting edges, by means of which said teeth remove material of the fine tool during the tooth-cutting or dressing machining process. The ring element is supported by a support ring, on which at least one support element associated with the support ring opening of the support ring is provided. The ring element is supported on said support element. The teeth of the set of internal teeth formed on the ring element protrude beyond the edge of the support element facing the support ring opening at least over part of the length of the cutting edges of said teeth in the direction of the central longitudinal axis of the tool. 1. A tool for cutting teeth or dressing of a fine machining tool having a set of external teeth for the fine-machining of workpieces , wherein the tool is annular and has a set of internal teeth , the teeth of which mesh , during the tooth-cutting or dressing operation , with the set of external teeth of the fine machining tool in which teeth are to be cut or which is to be dressed , and wherein the tool has a central longitudinal axis , which extends through the centre point of the opening surrounded by the tool , ...

METHOD OF PRODUCING A WORKPIECE HAVING A MODIFIED GEARING GEOMETRY

A method of producing a workpiece having a modified gearing geometry by a generating method includes generating machining the workpiece in at least one machining stroke with a tool having a modified gearing geometry and a topological modification. Provision is made that the contact path with the workpiece is not shifted on the tool during the machining stroke. In one example, a cylindrical workpiece is machined by an axial generating method. In another example, a conical workpiece is machined by a diagonal generating method, and the diagonal ratio is selected such that the contact path does not shift on the tool during the machining stroke. 1. A method of producing a workpiece having a modified gearing geometry by a generating method , wherein the workpiece is generating machined in at least one machining stroke by a tool having a modified gearing geometry , with the tool having a topological modification ,wherein the contact path with the workpiece is not shifted on the tool during the machining stroke.2. The method in accordance with claim 1 , wherein a cylindrical workpiece is machined and the machining takes place by an axial generating method.3. The method in accordance with claim 1 , wherein a conical workpiece is machined and the machining takes place by a diagonal generating method claim 1 , with the diagonal ratio being selected such that the contact path on the tool does not shift during the machining stroke; wherein the tool has a cylindrical basic form and the machining takes place on one flank; or wherein the tool has a conical basic shape and the machining takes place on a right flank and a left flank claim 1 , with a conical angle of the tool and the diagonal ratio further selected such that the contact path does not shift on the right and left flanks during two-flank machining.4. The method in accordance with claim 1 , wherein the topological modification of the surface geometry of the tool has a constant value in the generating pattern at least ...

PLUNGE DRESSING METHODS AND SYSTEMS FOR PRODUCING A GRINDING WHEEL FOR SPIRAL-BEVEL AND HYPOID GEAR MANUFACTURE

Method and systems are disclosed for plunge dressing of a spiral bevel gear-grinding wheel. The method includes providing a dressing roll for plunge dressing of a spiral bevel gear-grinding wheel, the dressing roll including: a body portion having an axis of rotation, a radial extent about said axis, and an axial extent, the body portion integrally comprising: a base portion configured for connection to a drive motor, a first cutting surface, and a second cutting surface, and plunge dressing of the spiral bevel gear-grinding wheel based upon the interference calculation. Some embodiments include determining whether interference will occur between the grinding wheel and the dressing roll before plunge dressing. 1. Method for plunge dressing of a spiral bevel gear-grinding wheel , the method comprising: a body portion having an axis of rotation, a radial extent about said axis, and an axial extent, the body portion integrally comprising:', 'a base portion configured for connection to a drive motor,', 'a first cutting surface, and', 'a second cutting surface; and, 'providing a dressing roll for plunge dressing of a spiral bevel gear-grinding wheel, the dressing roll includingplunge dressing of the spiral bevel gear-grinding wheel.2. The method of claim 1 , further comprising:determining whether interference will occur between the grinding wheel and the dressing roll.3. The method of claim 1 , wherein the second cutting surface includes a radial extent less than a radial extent of the first cutting surface.4. The method of claim 1 , wherein plunge dressing of the spiral bevel gear-grinding wheel is executed by:moving the dressing roll and grinding wheel together so that line contact is made between a portion of the radial extent of the dressing roll and a convex surface of the grinding wheel,releasing the plunge,moving the dressing roll and grinding wheel together so that line contact is made between a portion of the radial extent of the dressing roll and a concave ...

CONTINUOUS-GENERATION GEAR-WHEEL GRINDING METHOD

A continuous-generation gear grinding method of conducting a gear grinding process such that while a thread-shaped grinding wheel is rotated around an axial center thereof and fed in an axial center direction, a position coming into contact with abrasive grains is constantly changed in the presence of a water-soluble grinding fluid by performing a grinding feed in a direction parallel to an axial center of a gear blank and by serially rotating the gear blank around the axial center, the grinding wheel being a vitrified grinding wheel having abrasive grains bonded by a vitrified bond with pores formed among the abrasive grains, and the abrasive grains having a grain size of F120 to F180. 1. A continuous-generation gear grinding method of conducting a gear grinding process such that while a thread-shaped grinding wheel is rotated around an axial center thereof and fed in an axial center direction , a position coming into contact with abrasive grains is constantly changed in the presence of a water-soluble grinding fluid by performing a grinding feed in a direction parallel to an axial center of a gear blank and by serially rotating the gear blank around the axial center ,the grinding wheel being a vitrified grinding wheel having abrasive grains bonded by a vitrified bond with pores formed among the abrasive grains, andthe abrasive grains having a grain size of F120 to F180.2. The continuous-generation gear grinding method according to claim 1 , wherein the vitrified grinding wheel has an abrasive grain volume fraction of 40 to 44 vol. %.3. The continuous-generation gear grinding method according to claim 1 , wherein in a frequency distribution chart of an abrasive grain area ratio that is a proportion of solid bodies including the abrasive grains per unit area of multiple portions in a grinding wheel cross section claim 1 , the vitrified grinding wheel has homogeneity represented by a variation coefficient of 17 or less acquired by dividing the standard deviation of ...

APPARATUS AND METHOD FOR BEVEL GEAR RETRACTABILITY

Methods and apparatuses enabling/improving retractability of a first bevel gear that with at least one second bevel gear forms a transmission, performing: 1. A method for providing retractability of a first bevel gear defining a plurality of teeth configured to form a transmission with at least one second bevel gear defining a plurality of teeth , which is configured to be installed in a housing so that a rotational movement of the first bevel gear or the at least one second bevel gear is transferrable into a rotational movement of the other of the first bevel gear and the at least one second bevel gear , the method comprising: (A) determining with a computer whether one or more of (a) during said installation, the first bevel gear is engageable with the at least one second bevel gear via an axial insertion movement or (a) the first bevel gear is separable from engagement with the second bevel gear with via an axial retraction movement; and', (i) determining with a computer a flank modification for said teeth of one or more of the first bevel gear or the at least one second bevel gear configured to prevent said collision; and', '(ii) determining modified machine data based on said flank modification; and, '(B) when the determining step predicts a collision during said engagement or during said separation between at least one tooth of the first bevel gear and at least one tooth of the at least one second bevel gear], '(I) performing a retractability analysis including(II) finish machining at least one of said teeth with a bevel gear cutting machine based on the modified machine data and, in turn, providing said flank modification thereon.2. The method according to claim 1 , further comprising claim 1 , prior to step (I) claim 1 , generating design data for one or more of the first bevel gear or the at least one second bevel gear claim 1 , and generating first machine data configured for preliminary machining of teeth of one or more of the first bevel gear or the at ...

TOOTH FLANK MACHINING DEVICE AND GEAR MANUFACTURING METHOD

A tooth flank machining device includes a helical teeth grinding wheel, a position adjusting unit] capable of moving a relative position of a rotational axis of the helical teeth grinding wheel to a rotational axis of a work gear, and a controlling unit having a relative position controller activating the position adjusting unit to adjust the relative position of the rotational axis of the helical teeth grinding wheel to the rotational axis of the work gear so that the helical teeth grinding wheel engages the work gear with a grinding wheel tooth flank of the helical teeth grinding wheel abutting on only one of work tooth flanks forming a tooth of the work gear, a grinding wheel rotating unit controller activating a grinding wheel rotating unit, and a torque controlling unit controller activating a rotational torque controlling unit to adjust rotational torque within a predetermined range. 1. A tooth flank machining device comprising:a helical teeth grinding wheel supported so as to be rotatable about a rotational axis;a work gear supporting unit supporting a work gear so as to be rotatable about a rotational axis;a position adjusting unit capable of moving a relative position of the rotational axis of the helical teeth grinding wheel to the rotational axis of the work gear;a grinding wheel rotating unit rotating the helical teeth grinding wheel;a rotational torque controlling unit controlling rotational torque of the work gear; anda controlling unit having a relative position controller activating the position adjusting unit to adjust the relative position of the rotational axis of the helical teeth grinding wheel to the rotational axis of the work gear so that the helical teeth grinding wheel engages the work gear with a grinding wheel tooth flank of the helical teeth grinding wheel abutting on only one of work tooth flanks forming a tooth of the work gear, a grinding wheel rotating unit controller activating the grinding wheel rotating unit, and a torque ...

CUTTING APARATUS

Disclosed herein is a cutting apparatus including a moving unit for moving a spindle to position a cutting blade, a rotary dressing mechanism for rotating a dressing grindstone on a rotational shaft parallel to the spindle, and an optical sensor for detecting the position of the outer periphery of the dressing grindstone. The cutting blade is positioned with respect to the rotary dressing mechanism depending on the position, detected by the optical sensor, of the outer periphery of the dressing grindstone, and the cutting blade is dressed by cutting into the dressing grindstone by a predetermined cutting distance. 1. A cutting apparatus comprising:a chuck table for holding a workpiece thereon;cutting means for cutting the workpiece held on said chuck table with a cutting blade mounted on a spindle, while supplying a cutting fluid to said cutting blade;moving means for moving said spindle to position said cutting blade;rotary dressing means for rotating a dressing grindstone on a rotational shaft parallel to said spindle; andan optical sensor for detecting the position of the outer periphery of said dressing grindstone,wherein said cutting blade is positioned with respect to said rotary dressing means depending on the position, detected by said optical sensor, of the outer periphery of said dressing grindstone, and said cutting blade is dressed by cutting into said dressing grindstone by a predetermined cutting distance.2. The cutting apparatus according to claim 1 ,wherein said optical sensor is positioned to apply an inspection light beam emitted therefrom toward the rotational shaft of said dressing grindstone to the outer peripheral surface of said dressing grindstone,said cutting apparatus further comprises calculating means for calculating the diameter of said dressing grindstone on the basis of light reflected from the outer peripheral surface of said dressing grindstone to which said inspection light beam is applied, andsaid cutting blade is positioned with ...

METHOD AND DEVICES FOR THE RAPID AND FLEXIBLE DRESSING OF GRINDING WORMS

Disclosed is a method for dressing a single- or multi-thread grinding worm () in which a main rolling movement between the grinding worm and a gear-like dressing tool () is brought about. In order to create flank modifications on the grinding worm, an additional relative movement is superimposed on the main rolling movement. In addition, an auxiliary drive specifically designed for such a method, a correspondingly designed machine tool and a dressing tool for carrying out the method are disclosed. 1. A method for dressing a single- or multi-thread grinding worm comprising:producing a basic rolling movement between the grinding worm and a gear-like dressing tool; andproducing an additional relative movement between the grinding worm and the dressing tool, wherein the additional relative movement is superimposed on the basic rolling movement in order to produce modifications of at least one flank of the grinding worm.2. The method as claimed in claim 1 , wherein the production of the basic rolling movement comprises:driving the grinding worm to perform a basic rotary movement around a grinding worm axis;driving the dressing tool to perform a basic rotary movement around a dressing tool axis, which extends crosswise with respect to the grinding worm axis; andproducing a shift movement between the dressing tool and the grinding worm along the grinding worm axis,wherein the basic rotary movement of the grinding worm, the basic rotary movement of the dressing tool and the shift movement are coupled in such a way that the grinding worm and the dressing tool perform the basic rolling movement during the dressing process.3. The method as claimed in claim 2 , wherein an additional rotary movement around the dressing tool axis is superimposed on the basic rotary movement of the dressing tool in order to produce at least part of the additional relative movement.4. The method as claimed in claim 3 , wherein both the basic rotary movement and the additional rotary movement are ...

METHOD AND DEVICE FOR FINE MACHINING A TOOTHED WORKPIECE, AND PROGRAM FOR CONTROLLING SAID DEVICE

A method and a device for the fine-machining of a toothed workpiece with a toothed finishing tool () which meshes with the workpiece in mutual tooth engagement are, for the purpose of producing conically modified tooth flanks, designed according to the invention in such a way that in the dressing process the finishing tool () and the dressing tool () are set at a position of reduced center distance (a) that is offset from a position of maximum center distance. 112101210101121211011. Method of fine-machining of a toothed workpiece () , using a toothed finishing tool () which meshes with the workpiece () in mutual tooth engagement , wherein the finishing tool () is subjected to a dressing process in which the finishing tool () and a toothed dressing tool () , in tooth engagement with each other , rotate about their respective gear axes (C , C) which are arranged relative to each other at a center distance (a) different from zero and an axis-crossing angle different from zero , characterized in that the gear axes (C , C) of the finishing tool () and of the dressing tool () are arranged relative to each other in a position that is offset from the position of maximum center distance (a′) to a position of reduced center distance (a).21011. Method according to claim 1 , characterized in that the toothed contour of the finishing tool () is an internal toothed contour claim 1 , while the toothed contour of the dressing tool () is an external toothed contour.31011. Method according to claim 1 , characterized in that the toothed contour of the finishing tool () is an external contour claim 1 , while the toothed contour of the dressing tool () is an internal contour.410. Method according to characterized in that the finishing tool () is a ring-shaped honing tool.511. Method according to characterized in that the tooth thickness of the dressing tool () claim 1 , disregarding tooth trace convexities claim 1 , is constant over the tooth width.611110. Method according to ...

METHOD FOR DRESSING OF A GRINDING WORM BY MEANS OF A DRESSING ROLL AND DRESSING ROLL

A method for dressing a grinding worm using a dressing roll that engages the grinding worm to profile its helical grinding profile. The abrasive profile of the dressing roll is at least partially tooth-shaped in a radial cross section and extends radially from a root region to a tip region. The dressing roll is produced by: a) producing a counterpart having an inner surface; b) positioning and fixing a layer of abrasive particles on the tooth-shaped surface; c) producing a disk-shaped base body of the dressing roll and connecting the base body with a carrier layer for the abrasive particles; d) demolding the base body; e) profiling the base body. Step a) includes providing the counterpart with the surface so that the distance between the profiled surface and the abrasive profile changes during advancing from the root region to the tip region at least at one flank of the surface, measured in the radial cross section perpendicular to the profiled surface. 1. A method for dressing of a grinding worm by means of a dressing roll in which the dressing roll , which is provided with an abrasive profile , is brought into engagement with the grinding worm to profile its helical grinding profile ,wherein the abrasive profile of the dressing roll is at least partially designed tooth-shaped in a radial cross section and extends radially from a root region to a tip region,wherein the dressing roll is produced by the steps:a) producing of a counterpart which has an inner surface which is at least partially tooth-shaped in the radial cross section;b) positioning of a layer of abrasive particles on the tooth-shaped surface and fixing of the abrasive particles by means of a carrier material, wherein the carrier material forms a carrier layer for the abrasive particles;c) producing of a disk-shaped base body of the dressing roll and connecting of the base body with the carrier layer including the abrasive particles;d) demolding of the base body of the dressing roll including carrier ...

METHOD, TOOL AND DEVICE FOR PROFILING A FINISHING TOOL

Method for profiling a finishing tool, in particular a grinding worm, having a first and a second finishing flank; the method providing the steps of: arranging a cutting portion of a profiling tool in contact with the first flank of the thread; causing the cutting portion to slide in contact with the first flank of the thread so as to profile it; removing the cutting portion from the thread; automatically rotating the profiling tool so as to arrange the cutting portion in contact with a second flank of the thread; and causing the cutting portion to slide in contact with the second flank of the thread so as to profile it. 3. Method claim 2 , according to claim 2 , wherein the first profiling operation is a roughing-out operation and the second profiling operation is a finishing operation.4. Method claim 2 , according to claim 2 , wherein the first profiling operation is with linear contact and the second profiling operation is with localized contact i.e. a contact with a small and circumscribed area.591093031130131453. Method claim 1 , according to claim 1 , wherein the angular position of the profiling tool (; ) with respect to a second axis that is transverse to the first axis (L) claim 1 , is fixed during each step in which a cutting portion (; ; A claim 1 , A) is caused to slide into contact with a flank (; ) of the thread ().691099109301303113123031130131910991093013031131. A profiling tool (; ) for performing the method of having the shape of a disc; wherein the profiling tool (; ) has a first rotation axis (L) claim 1 , a first cutting portion (; A) and a second cutting portion (; A) which are suited to profile the finishing tool (); in an axial section claim 1 , the first and the second cutting portion ( claim 1 , ; A claim 1 , A) are divided from one another by a second axis (M) that is perpendicular to the rotation axis (L) of the profiling tool (; ); the profiling tool (; ) having a rotation center (R) defined by the intersection of said first and second ...

METHOD OF MAKING BARREL-SHAPED WORM-LIKE TOOL

Provided is a method of making a barrel-shaped worm-like tool whereby a barrel-shaped worm-like tool capable of efficiently performing grinding without unequal wear can easily be made. The aforementioned method comprises making the barrel-shaped worm-like tool () by using a dressing gear () to dress the barrel-shaped worm-like tool (), which is used for machining an internal gear and has a diameter that gradually increases from the ends () to the center () in the axial direction. On the basis of data wherein the number of teeth is less than that of the internal gear to be machined, the dressing gear () and the barrel-shaped worm-like tool () are engaged with each other at the same axial intersection angle as during gear-machining performed by the barrel-shaped worm-like tool (). 1determining dressing operation data based on the number of teeth for the barrel-shaped worm tool, which has a number of teeth that is smaller than the number of the teeth in specification data for the internal gear to be machined; engaging the disk dresser and the barrel-shaped worm tool with each other; andmoving the barrel-shaped worm tool and the disk dresser, in a state of engagement with each other, based on the dressing operation data.. A method of dressing a barrel-shaped worm tool that uses a dressing tool to dress the barrel-shaped worm tool, the barrel-shaped worm tool is used for gear-machining an internal gear to be machined by the barrel-shaped worm tool and has a diameter gradually increasing from ends in an axial direction to a center in the axial direction of the barrel-shaped worm tool, the dressing tool is a disk dresser of a shape in which a contour of the edge surface of the disk dresser matches a cross sectional shape of a tooth of the internal gear to be machined, the method comprising: This application is a Divisional of co-pending U.S. patent application Ser. No. 13/500,838 filed on Jun. 18, 2012, which is a National Phase of PCT/JP2010/067503 filed on Oct. 6, 2010, ...

Grinding wheel machining device

A grinding wheel machining device includes a movable platform and a grinding wheel machining mechanism. The grinding wheel machining mechanism includes a mounting assembly, a tool holder mounted on the movable member, a machining tool mounted on the tool holder, and an adjusting assembly. The mounting assembly includes a fixing base mounted on the movable platform, a movable member mounted onto the fixing base, and a rotation shaft received into the fixing base and the movable member. The machining tool includes a cutting edge. The adjusting assembly includes a reference member and an adjusting member. The reference member is fixed on the movable member and includes a reference surface. The reference surface is coplanar with a central axis of the rotation shaft. The adjusting member is received into the tool holder and threaded into the reference surface.

SYSTEM AND METHOD FOR AUTOMATED MACHINING OF TOOTHED MEMBERS

A system and method for machining a workpiece to provide a toothed member having a desired tooth pattern. A cutting tool machines the workpiece to a first depth, thereby forming a semi-finished tooth pattern, the first depth less than a full depth to which the workpiece is to be machined to provide the desired tooth pattern. Dimensions of the semi-finished tooth pattern are acquired and compared to nominal dimensions. If the acquired dimensions are not within a tolerance of the nominal dimensions, the geometry of the cutting tool is modified for correcting deviations of the acquired dimensions from tolerance and the workpiece further machined by the modified cutting tool. Once the dimensions of the semi-finished tooth pattern are within tolerance, the workpiece is machined to the full depth for providing the desired tooth pattern. 1. A computer-implemented method for machining from a workpiece a toothed member having a desired tooth pattern , the workpiece machined using a cutting tool of a numerically controlled machine , the method comprising:causing the cutting tool to machine the workpiece to a first depth to provide a semi-finished tooth pattern, the semi-finished tooth pattern created according to a geometry of the cutting tool, the first depth less than a full depth of the desired tooth pattern;acquiring dimensions of the semi-finished tooth pattern;comparing the acquired dimensions to nominal dimensions of the semi-finished tooth pattern and determining whether the acquired dimensions are within a predetermined tolerance of the nominal dimensions;if the acquired dimensions are not within the predetermined tolerance of the nominal dimensions, causing the geometry of the cutting tool to be modified for correcting deviations of the acquired dimensions from the tolerance, and causing the modified cutting tool to machine the workpiece to bring the dimensions of the semi-finished tooth pattern within the tolerance; andcausing the workpiece to be machined to the ...

METHOD AND DEVICE FOR HARD-FINE MACHINING INTERNALLY TOOTHED GEARWHEELS BY MEANS OF A TOOTHED HONING MACHINE

A method for machining an internally toothed workpiece, in which the workpiece is clamped into a toothed honing machine, and in which at least one tool that is at least partially made of a high-hardness cutting material is guided along respective teeth of the internally toothed workpiece, in order to carry out hard-fine machining of the teeth of the internally toothed workpiece. 113-. (canceled)14. A method for machining an internally toothed workpiece , comprising:the workpiece is clamped into a mount of a toothed honing machine, said mount being provided for the insertion of a honing ring, and at least one tool that is at least partially made of a high-hardness cutting material is guided along respective teeth of the internally toothed workpiece, in order to carry out hard-fine machining of the teeth of the internally toothed workpiece.15. The method as claimed in claim 14 , wherein an internally toothed gearwheel with hardened tooth flanks is chosen as the workpiece.16. The method as claimed in claim 14 , wherein polycrystalline diamond claim 14 , especially a ceramically bonded diamond is chosen as the high-hardness cutting material.17. The method as claimed in claim 14 , wherein boron nitride claim 14 , especially cubic ceramically bonded boron nitride is chosen as the high-hardness cutting material.18. The method as claimed in claim 14 , wherein at least one externally toothed gearwheel-shaped tool is chosen as the at least one tool claim 14 , wherein the at least one tool is broader than the workpiece by a multiple claim 14 , especially a twofold or a threefold factor.19. The method as claimed in claim 18 , wherein an axis intersection angle of the at least one tool with the workpiece is modified claim 18 , so that the workpiece contacts the at least one tool at a predetermined point.20. The method as claimed in claim 18 , wherein the tool is displaced axially along an axis running horizontally or vertically through a center point of the tool claim 18 , so ...

METHOD OF POLISHING WORK AND METHOD OF DRESSING POLISHING PAD

The method of the present invention comprises the steps of: previously obtaining correlation data between surface properties of the polishing pad dressed under a plurality of stages of dressing conditions and polishing effects of the work polished by the polishing pad dressed under the dressing conditions; determining an assumed dressing condition capable of achieving an object polishing effect from the correlation data; dressing the polishing pad under the assumed dressing condition determined; polishing the work; cleaning the polishing pad which has been used for polishing the work; and measuring a surface property of the cleaned polishing pad. 1. A method of polishing a work ,comprising the steps of:pressing a work onto a polishing pad of a rotating polishing plate;polishing a surface of the work with supplying a polishing liquid to the polishing pad; andreciprocally moving a dressing head, which has a dressing grindstone, on the polishing pad so as to dress a surface of the polishing pad with the dressing grindstone after the polishing step,the method being characterized by the steps of:previously obtaining correlation data between surface properties of the polishing pad dressed under a plurality of stages of dressing conditions and polishing effects of the work polished by the polishing pad dressed under the dressing conditions;determining an assumed dressing condition capable of achieving an object polishing effect from the correlation data;dressing the polishing pad under the assumed dressing condition determined;polishing the work;cleaning the polishing pad which has been used for polishing the work; andmeasuring a surface property of the cleaned polishing pad, andthe method being further characterized in,that if the measured surface property of the polishing pad is within set data indicating a predetermined surface property, the step of polishing the work is performed, andthat if the measured surface property of the polishing pad is inferior to the set data ...

MEASUREMENT OF CHARACTERISTIC VARIABLES OF A PRECISION MACHINING TOOL

The invention relates to a machine for the precision machining of toothed workpieces, which machine comprises a tool spindle () for mounting a precision machining tool (). The tool spindle can be driven to rotate about a tool spindle axis (B) by means of a tool spindle drive (). A control device () takes at least one measurement of the distance from the precision machining tool () by means of a distance sensor () and, on the basis of said measurement(s), determines at least one characteristic variable of the precision machining tool, in particular the outer diameter thereof. The distance sensor can operate optically in particular. 1. A machine for finishing toothed workpieces , comprising:a tool carrier;a tool spindle for chucking a finishing tool, the tool spindle being attached to the tool carrier;a tool spindle drive for driving the tool spindle so as to rotate about a tool spindle axis;at least one distance sensor; anda control device configured to carry out, by means of the distance sensor, at least one distance measurement from a finishing tool chucked on the tool spindle and to determine, from the distance measurement, a characteristic parameter of the finishing tool.2. (canceled)3. The machine as claimed in claim 1 , wherein the distance sensor is a distance sensor that operates in an optical manner and which is configured for generating a measuring light beam.4. (canceled)5. (canceled)6. The machine as claimed in claim 1 , wherein the distance sensor is a sensor that operates in a contacting manner claim 1 , the distance sensor being spring-biased.7. The machine as claimed in claim 1 , wherein the control device is configured to determine a measure for the external diameter of the finishing tool from the at least one distance measurement.8. The machine as claimed in claim 7 , wherein the control device is configured to actuate the tool spindle drive in such a manner that the tool spindle rotates at a rotating speed that is variable as a function of the ...

METHOD FOR THE MANUFACTURE OF A WORKPIECE HAVING A CORRECTED GEAR TOOTH GEOMETRY AND/OR A MODIFIED SURFACE STRUCTURE

A method for production of a workpiece having a corrected gear tooth geometry and/or a modified surface structure by a diagonal generating method with a modified tool, wherein a modification in the generating pattern has a constant value in a first direction of the tool and is given by a function Fin a second direction of the tool, which extends perpendicular to the first direction, and/or wherein the modification is produced in that the position of the dresser to the tool is varied during dressing in dependence on the angle of rotation of the tool and/or on the tool width position, wherein the modification of the tool produces a corresponding modification on the surface of the workpiece, and wherein the modification of the workpiece produced by the modification is superposed by a profile modification and/or a modification caused by a change of the machine kinematics during the machining process. 1. A method for production of a workpiece having a corrected gear tooth geometry and/or a modified surface structure by a diagonal generating method by means of a modified tool , wherein a modification of the surface geometry of the tool is produced , wherein the modification in a generating pattern has a constant value at least locally in a first direction of the tool and is given by a function Fin a second direction of the tool , which extends perpendicular to the first direction , and/or wherein the modification is produced in that the position of a dresser to the tool is varied during dressing in dependence on an angle of rotation of the tool and/or on a tool width position , wherein the modification of the tool by the diagonal generating method produces a corresponding modification on the surface of the workpiece , wherein the modification of on the surface of the workpiece is superposed by a profile modification and/or a modification caused by a change of machine kinematics during a machining process.2. The method in accordance with claim 1 , wherein the shape and/or ...

METHOD FOR THE GEAR MANUFACTURING MACHINING OF A WORKPIECE BY A DIAGONAL GENERATING METHOD

A method for the production of a workpiece having a corrected gear tooth geometry and/or a modified surface structure by a diagonal generating method by a modified tool, wherein a modification of the surface geometry of the tool is produced in that the position of the tool dresser is varied during dressing in dependence on the angle of rotation of the tool and/or on the tool width position and/or wherein a modification of the surface geometry is produced which has a constant value at least locally in the generating pattern in a first direction of the tool and is given by a function in a second direction of the tool which extends perpendicular to the first direction, wherein the modification of the tool produces a corresponding modification on the surface of the workpiece, and wherein the modification on the surface of the workpiece is a directed crowning without shape deviations. 1. A method for production of a workpiece having a corrected gear tooth geometry and/or a modified surface structure by a diagonal generating method by means of a modified tool , wherein a modification of the surface geometry of the tool is produced in that the position of a dresser to the tool is varied during dressing in dependence on an angle of rotation of the tool and/or on a tool width position and/or wherein a modification of the surface geometry of the tool is produced which has a constant value at least locally in a generating pattern in a first direction of the tool and is given by a function Fin a second direction of the tool which extends perpendicular to the first direction , wherein the modification of the tool by the diagonal generating method produces a corresponding modification on the surface of the workpiece , wherein the modification on the surface of the workpiece is a directed crowning without shape deviations , or wherein the specific modification represents a pure tooth trace modification , or wherein the specific modification is an end relief , or wherein lines of ...

METHOD FOR GRINDING TOOTHED WORKPIECES AND APPARATUS DESIGNED THEREFOR

The invention concerns a method of grinding a toothed workpiece in which a central axis of the toothed contour profile is defined, wherein the method encompasses at least two work operations. In a first work operation a grinding zone of a grinding tool whose selection is determined by the grinding process to be performed, which rotates about an axis of rotation and is set up for an infeed in the direction of the shortest distance between said central axis and the rotation axis, is brought into grinding engagement with a tooth flank of the workpiece. In a later, second work operation, the tooth flank is brought into grinding engagement with a grinding zone of a grinding tool whose selection is determined by the grinding process to be performed and which is advanced in the infeed direction of the first operation. The grinding zone that is active in the first work operation is dressed in a first dressing operation with a dressing tool, and the grinding zone that is active in the second work operation is dressed in a second dressing operation with a dressing tool, wherein in the first dressing operation a first dressing tool zone is brought into dressing engagement with the grinding zone that is to be dressed, and in the second dressing operation a second dressing tool zone which is spatially separate from the first dressing tool zone is brought into dressing engagement with the grinding zone that is to be dressed. 12101002020220201010010104343. Method of grinding a tooth-profiled workpiece () having a central axis (Z) of the toothed profile , said method comprising at least two work operations , wherein in a first work operation a grinding zone (L , R) of a grinding tool () whose selection is determined by the grinding process to be performed , which rotates about an axis of rotation (y) and is set up for an infeed in the direction (X) of the shortest distance between said central axis (Z) and the rotary axis (Y) , is brought into grinding engagement with a tooth flank ...

Method for Dressing a Honing Tool and Method for Honing a Toothed Wheel

A method for dressing a honing tool using a dressing tool which during the dressing operation rolls at an axial intersection angle with the honing tool. The teeth thereof which move into engagement with the teeth of the dressing tool each have an upper face which is intended to be dressed and tooth flanks which are also to be dressed. 1. A method for dressing a honing tool for the fine machining of the teeth of a toothed wheel , comprising: applying a dressing tool such that , during a dressing operation with the honing tool to be dressed , the dressing tool continuously rolls at an axial intersection angle so that teeth which are formed on the dressing tool move into engagement with teeth which are formed on the honing tool , each of the teeth formed on the honing tool having an upper face to be dressed and tooth flanks which are also to be dressed , wherein in at least one positioning of the dressing tool both the upper faces and the tooth flanks of the honing tool are processed , and wherein using tooth base rounded portions which are provided on the teeth of the dressing tool , step-free transitions from the tooth flanks to the upper faces are modeled on the honing tool.2. The method according to claim 1 , wherein the honing tool is an internally toothed honing ring.3. The method according to claim 1 , wherein the honing tool is an externally toothed cylinder wheel.4. The method according to claim 1 , wherein a geometry of the tooth base rounded portions of the teeth of the dressing tool corresponds to a desired geometry of the teeth of the toothed wheel which is to be processed with the honing tool in each case claim 1 , in the completely processed state.5. The method according to claim 4 , wherein an entire geometry of the teeth of the dressing tool corresponds to the desired geometry of the teeth of the toothed wheel which is to be processed with the honing tools in the completely processed state.6. The method according to claim 4 , wherein the desired ...

SYSTEM AND METHOD FOR AUTOMATED MACHINING OF TOOTHED MEMBERS

A method for machining a workpiece to provide a toothed member having a desired tooth pattern. The workpiece is machined to a first depth using a cutting tool, thereby forming a semi-finished tooth pattern, the first depth less than a full depth to which the workpiece is to be machined to provide the desired tooth pattern. Dimensions of the semi-finished tooth pattern are acquired and compared to nominal dimensions. If the acquired dimensions are not within a tolerance of the nominal dimensions, the geometry of the cutting tool is modified for correcting deviations of the acquired dimensions from tolerance and the workpiece further machined by the modified cutting tool. Once the dimensions of the semi-finished tooth pattern are within tolerance, the workpiece is machined to the full depth for providing the desired tooth pattern. 1. A method for machining from a workpiece a toothed member with a desired tooth pattern , the method comprising:machining the workpiece to a predetermined partial depth using a cutting tool to provide a semi-finished tooth pattern created according to a geometry of the cutting tool, the predetermined partial depth less than a full depth of the desired tooth pattern;comparing computed parameters of the semi-finished tooth pattern based on dimensions of the semi-finished tooth pattern to nominal parameters of the semi-finished tooth pattern and determining whether the computed parameters are within a predetermined tolerance of the nominal dimensions for the semi-finished tooth pattern at the predetermined partial depth;modifying the geometry of the cutting tool to correct deviations of the computed parameters from the tolerance when the computed parameters are not within the predetermined tolerance of the nominal dimensions, and machining the workpiece with the modified cutting tool to bring the dimensions of the semi-finished tooth pattern within the tolerance for the semi-finished tooth pattern at the predetermined partial depth; ...

DRESSING DEVICE AND GEAR GRINDING DEVICE

This dressing device has: a gear grinding tool spindle () that rotatably supports a screw-shaped grindstone (); and a dressing tool () that dresses the screw-shaped grindstone (). The dressing device dresses the screw-shaped grindstone () by driving the screw-shaped grindstone () to rotate, and causing the relative motion of the screw-shaped grindstone () and/or the dressing tool (). The dressing device performs a dressing process on the screw-shaped grindstone () in a manner such that the pressure angle changes along the direction of the tooth line by means of moving the screw-shaped whetstone () and/or dressing tool () at a fixed speed and altering the speed of rotation of the screw-shaped grindstone (), or rotating the screw-shaped grindstone () at a fixed speed and altering the speed of motion in the axial direction of the screw-shaped grindstone () and/or the dressing tool (). 1. A dressing device characterized in that a gear grinding tool spindle by which a threaded grinding wheel used for machining of a gear is rotatably supported; and', 'a dressing tool which is rotatably supported parallel to the gear grinding tool spindle and which dresses the threaded grinding wheel,, 'the dressing device comprisesthe dressing device being configured to dress the threaded grinding wheel by: rotationally driving the threaded grinding wheel; bringing the threaded grinding wheel and the dressing tool into contact with each other; and moving at least one of the threaded grinding wheel and the dressing tool relative to each other in an axial direction of the threaded grinding wheel and the dressing tool, whereina dressing process is performed on the threaded grinding wheel such that a pressure angle varies in a tooth trace direction, the dressing process performed by: changing a rotating speed of the threaded grinding wheel while moving at least one of the threaded grinding wheel and the dressing tool in the axial direction at a constant speed; or changing a moving speed of at ...

Grinding Tool

A grinding tool includes a substrate having a surface provided with a plurality of openings, and a plurality of grinding studs. Each of the grinding studs includes a stud portion and an abrasive particle attached to each other, the stud portions being respectively attached into the openings, and the abrasive particles protruding outward from the surface, each of the abrasive particles having a pattern cut across a tip thereof to define multiple apexes adjacent to one another. 1. A grinding tool comprising:a substrate having a surface provided with a plurality of openings; anda plurality of grinding studs, each of the grinding studs including a stud portion and an abrasive particle attached to each other, the stud portions being respectively attached in the openings, and the abrasive particles protruding outward from the surface, each of the abrasive particles having a pattern cut across a tip thereof to define multiple apexes adjacent to one another.2. The grinding tool according to claim 1 , wherein the stud portions are respectively attached in the openings via a plurality of adhesive layers.3. The grinding tool according to claim 1 , wherein the pattern is cut by laser.4. The grinding tool according to claim 1 , wherein the abrasive particles are respectively bonded to the stud portions by brazing claim 1 , sintering or electroplating.5. The grinding tool according to claim 1 , wherein the abrasive particles are made of diamond claim 1 , cubic boron nitride claim 1 , aluminum oxide or silicon carbide.6. The grinding tool according to claim 1 , wherein the pattern includes a cross shape.7. The grinding tool according to claim 1 , wherein each of the abrasive particles has a plurality of side surfaces adjacent to the tip thereof claim 1 , and the cut pattern respectively extends onto each of the side surfaces.8. The grinding tool according to claim 1 , wherein the stud portions are made of a metallic material.9. The grinding tool according to claim 1 , wherein the ...

ONLINE PRECISE CONTROL METHOD FOR TRUNCATING PARAMETERS OF MICROSCALE ABRASIVE GRAINS

An online precise control method for truncating parameters of microscale abrasive grains includes the steps of: (1) clamping an electrode and a diamond grinding wheel to form a discharge circuit, and communicating a workstation with a power supply and a controller of a numerical control machine tool; (2) feedback controlling movement parameters of the machine tool and parameters of the power supply according to pulse discharge parameters, controlling a discharge current and a discharge voltage, and calculating a number of rotations of the grinding wheel; (3) determining a maximum truncating area of a cutting edge and a maximum effective number of rotations of the grinding wheel according to grinding wheel parameters and pulse discharge parameters, and precisely controlling a truncating area of a cutting edge of abrasive grains online by the calculated number of rotations of the grinding wheel; and (4) after the calculated number of rotations of the grinding wheel reaches a target value, calculating a truncating area of the cutting edge and a protrusion height of truncating microscale abrasive grains, and stopping the machine tool. 1. An online precise control method for truncating parameters of microscale abrasive grains , wherein the method comprises the following steps:step 1, clamping an electrode and a diamond grinding wheel to be truncated on a numerical control machine tool, connecting the diamond grinding wheel, the electrode, a power supply, a voltage sensor, a current sensor and a data collection card in a positive electrode manner to form a discharge circuit, and communicating, by a workstation, with the a power supply and a controller of the numerical control machine tool;step 2. during in-position truncating, setting grinding wheel parameters and a target value of a number of rotations of the grinding wheel and planning a grinding wheel path, respectively feedback controlling movement parameters of the machine tool and parameters of the power supply ...

GEAR GRINDING APPARATUS PROVIDING TOOL MODIFICATION FUNCTION

A gear grinding apparatus comprises a work-piece stand, a tool stand, a grinding wheel assembly and a modification assembly. The work-piece stand has a first shaft to hold and rotate an unmodified gear. The tool stand is movable along a first axial direction against the work-piece stand and includes a slide member. The grinding wheel assembly is located on the slide member to grind the unmodified gear. The modification assembly is located on the slide member above the grinding wheel assembly and includes a rotary member rotatably mounted on the slide member and having a second shaft rotatable about an axis intersecting the second axial direction at an angle smaller than ninety degrees, a trimmer and a movable arm interposed between the rotary member and trimmer. The trimmer has an oblique deviation displacement and a tool modification displacement. The invention formed can reduce production cost and shrink apparatus size. 1. A gear grinding apparatus providing tool modification function , comprising:a work-piece stand including a first shaft to hold and rotate an unmodified gear;a tool stand which is located at one side of the work-piece stand and movable against thereof along a first axial direction, and includes a slide member movable along a second axial direction perpendicular to the first axial direction;a grinding wheel assembly located on the slide member to grind the unmodified gear; anda modification assembly which is located on the slide member above the grinding wheel assembly and includes a rotary member rotatably mounted on the slide member and having a second shaft rotatable about an axis intersecting the second axial direction at an angle smaller than ninety degrees, a trimmer and a movable arm interposed between the rotary member and the trimmer;wherein the trimmer includes an oblique deviation displacement in which the grinding wheel assembly is in contact with the unmodified gear to perform machining and the rotary member drives the movable arm to ...

DRESSING METHOD FOR DRUM-SHAPED GEAR-LIKE GRINDSTONE, AND DISK DRESSER

A disk dresser and a dressing method enable high-precision dressing of a drum-shaped gear-like grindstone and shaping of the cutting teeth of the grindstone without changing the shape of the cutting teeth of the disk dresser. A drum-shaped gear-like grindstone is brought into linear contact with a workpiece so as to link with the contours of the tooth right angle cross-section orthogonal to the twist direction of the workpiece teeth. The grindstone and a disk dresser, in an engaged state, are caused to rotate synchronously, thereby causing the drum-shaped grindstone to be dressed by the disk dresser. The disk dresser blade shape is made to match the tooth right angle cross-section shape of the teeth of the ground workpiece. The grindstone and the disk dresser are caused to move and revolve in accordance with the drum shape and the angle of twist of the grindstone. 1. An hourglass gear-shaped grinding-wheel dressing method of dressing an hourglass gear-shaped grinding wheel with a disk dresser formed in a circular disk shape , by synchronously rotating the gear-shaped grinding wheel and the disk dresser in mesh with each other , the gear-shaped grinding wheel being configured to grind a helical gear by coming into line contact with the helical gear in such a way as to connect contours of normal planes of teeth of the helical gear , the normal planes being perpendicular to a helical direction of the teeth , characterised in that the hourglass gear-shaped grinding-wheel dressing method comprises:matching an edge profile of the disk dresser with a profile of the normal plane of each of the teeth of the helical gear after grinding;moving the gear-shaped grinding wheel and the disk dresser relative to each other in directions of three perpendicular axes in accordance with a hourglass shape and a helix angle of the gear-shaped grinding wheel;turning the disk dresser about a dresser turn axis to a predetermined turn angle in accordance with the helix angle of the gear- ...

METHOD FOR DRESSING A GRINDING TOOL

Method for dressing a grinding tool by means of a machine tool including dressing the grinding tool with a form dressing roller and generating a tool profile on the grinding tool by a contact between the rotating grinding tool and the rotating form dressing roller along a dressing path, and generating relative movement therebetween along the dressing path automatically with the aid of two or more NC axes, wherein during the relative movement along the dressing path and during the contact between the form dressing roller and the grinding tool, each of the NC axes has an axial velocity with an absolute value greater than zero, and none of these NC axes carries out a directional reversal or comes to a standstill. 1. A method comprising:mounting a dressable grinding tool in a machine tool;mounting a form dressing roller in the machine tool;rotating the grinding tool,rotating the dressing roller; anddressing the grinding tool with the form dressing roller, and generating a tool profile on the grinding tool by relative movement and contact between the rotating grinding tool and the rotating form dressing roller along a dressing path,wherein the method includes generating said relative movement along the dressing path automatically using at least two NC axes of the machine tool; andwherein, during the relative movement along the dressing path and during the contact between the form dressing roller and the grinding tool, each of the at least two NC axes defines an axial velocity with an absolute value greater than zero, and none of the at least two NC axes reverses direction or comes to a standstill.2. The method according to claim 1 , wherein the dressable grinding tool defines a dressable grinding wheel.3. The method according to claim 2 , wherein the grinding wheel defines a wheel profile defining a wheel profile cross section defining at least one local minimum and/or at least one local maximum claim 2 , wherein the local minimum and/or local maximum are dressed in a ...

Improved four point contact ball bearing in two races and an improved dresser to manufacture the same

Problem to be solved by this Invention is to manufacture an Actual Four Point Contact Ball Bearing which reduces a self friction of Bearing by 50% in compared to Deep Groove Ball Bearing. Actual Four Point Contact Ball Bearing comprises an inner race (b 1 ), an outer race (a 1 ), balls (d 11 ) & cage wherein inner race & outer race have a groove made up of two circular arcs forming a Gothic arch in which Balls are accommodated & kept in position with the help of cage. In this invention the balls have a point contact at 35° (c 1 ) with races in groove forming a gothic arch. Actual Four Point Contact Dresser comprising a Base, a Stand, a Handle, a Bearing Assembly, a Cylinder, a Piston, a Gothic Arch Guide Plate, a Lever and a Diamond which in operation dresses a Grinding wheel in Gothic Arch Formation resulting in Grinding of Gothic Arch Grooves of Outer & Inner Races of Actual Four Point Contact Bearing.

AN APPARATUS FOR DRESSING A GRINDING WHEEL

An apparatus for dressing a grinding wheel mounted thereon by creating structures on the surface of a, in particular cylindrical, grinding surface of the grinding wheel The apparatus includes a dressing tool holder arranged for accommodating a dressing tool in a dressing position, a controllable actuator for adjusting the position of the tool holder within the apparatus in at least one direction, a grinding wheel support for rotatably supporting a grinding wheel to be dressed The apparatus further includes a mechanism for monitoring an individual structure, created by the dressing tool on the surface of the grinding wheel, and a mechanism for monitoring a circumferential position and/or the rotary speed of the grinding wheel, and a mechanism for controlling the actuator, adapted to control the actuator as a function of the monitored structure and the monitored circumferential position and/or rotary speed. 1. An apparatus for dressing a grinding wheel mounted thereon by creating structures on the surface of a , in particular cylindrical , grinding surface of the grinding wheel , the apparatus comprising:a dressing tool holder arranged for accommodating a dressing tool in a dressing position,{'b': '6', 'a controllable actuator for adjusting the position of the tool holder () within the apparatus in at least one direction,'}a grinding wheel support for rotatably supporting a grinding wheel to be dressed,the apparatus further includes:means for monitoring an individual structure, created by the dressing tool on the surface of the grinding wheel, andmeans for monitoring a circumferential position and/or a rotary speed of the grinding wheel, andmeans for controlling the actuator, adapted to control the actuator as a function of the monitored structure and the monitored circumferential position and/or rotary speed.2. An apparatus according to claim 1 ,wherein the means for monitoring an individual structure are adapted to monitor the individual structure at the instant ...

METHOD AND GRINDING MACHINE FOR GRINDING A GEAR WHEEL WORKPIECE

Method for the grinding of a gear wheel workpiece using a dressable worm grinding wheel, wherein the worm grinding wheel is rotationally driven about a tool axis of rotation and the gear wheel workpiece is rotationally driven about a workpiece axis of rotation, and relative movements are executed between the worm grinding wheel and gear wheel workpiece, and wherein after the execution of a dressing procedure of the worm grinding wheel, which is carried out by means of a rotationally-drivable dressing unit, the following steps are carried out: 1. A method comprising: rotationally driving the worm grinding wheel about a tool axis of rotation,', 'rotationally driving the gear wheel workpiece about a workpiece axis of rotation, and', 'executing relative movements between the worm grinding wheel and the gear wheel workpiece;, 'grinding a gear wheel workpiece with a dressable worm grinding wheel, includingdressing the worm grinding wheel with a rotationally-drivable dressing tool; a relative shift movement between the worm grinding wheel and the gear wheel workpiece in parallel to the tool axis of rotation; and', 'an axially-parallel relative movement between the worm grinding wheel and the gear wheel workpiece in parallel or diagonally to the workpiece axis of rotation; and, 'executing, after the dressing stepdefining a variable ratio between the shift movement and the axially-parallel relative movement, so that during subsequent grinding of the gear wheel workpiece a different ratio is used than during the said grinding step before the dressing step.2. A method according to claim 1 , wherein the dressing step further includes reducing the diameter of the worm grinding wheel claim 1 , and further including changing the ratio between the shift movement and the axially-parallel relative movement.3. A method according to claim 1 , wherein the dressing step further includes reducing the diameter of the worm grinding wheel claim 1 , and further including increasing the ratio ...

Method for the dressing of a multi-thread grinding worm by means of a dressing roll

A method for the dressing of a multi-thread grinding worm by a dressing roll, wherein the grinding worm has at least two screw channels which are arranged parallel to another, which screw channels extend helically around an axis of the grinding worm and wherein the dressing roll has at least two adjacent dressing profiles which are arranged along an axis of the dressing roll, wherein the dressing profiles of the dressing roll are guided simultaneously through adjacent screw channels of the grinding worm during the dressing of the grinding worm. To improve the precision of the dressing the method includes the steps: a) Execution of a first partial dressing process at which the dressing profiles of the dressing roll are guided simultaneously through first adjacent screw channels of the grinding worm; b) Execution of at least one second partial dressing process at which the dressing profiles of the dressing roll are guided simultaneously through second adjacent screw channels of the grinding worm, wherein the second adjacent screw channels are, compared with step a), offset in the direction of the axis of the grinding worm by at least one screw channel of the grinding worm.

MACHINE LEARNING DEVICE, DRESSING ESTIMATION DEVICE, AND CONTROLLER

An optimal timing to perform dressing on a grindstone is detected easily. A machine learning device includes: an input data acquisition unit that acquires input data including an arbitrary grinding condition for an arbitrary work material in a grinding process of an arbitrary grinding machine and grindstone information related to an arbitrary grindstone including at least a degree of necessity of dressing process indicating a degree of necessity of dressing before a grinding process is performed under the grinding condition; a label acquisition unit that acquires label data indicating the degree of necessity of dressing process of the grindstone after the grinding process is performed under the grinding condition included in the input data; and a learning unit that executes supervised learning using the input data acquired by the input data acquisition unit and the label data acquired by the label acquisition unit, and generates a learned model. 1. A machine learning device comprising:an input data acquisition unit that acquires input data including an arbitrary grinding condition for an arbitrary work material in a grinding process of an arbitrary grinding machine and grindstone information related to an arbitrary grindstone including at least a degree of necessity of dressing process indicating a degree of necessity of dressing before a grinding process is performed under the grinding condition;a label acquisition unit that acquires label data indicating the degree of necessity of dressing process of the grindstone after the grinding process is performed under the grinding condition included in the input data; anda learning unit that executes supervised learning using the input data acquired by the input data acquisition unit and the label data acquired by the label acquisition unit, and generates a learned model.2. The machine learning device according to claim 1 , whereinthe grinding condition includes a grinding time for one or more work materials.3. A dressing ...

GEAR MACHINING APPARATUS

Provided are a gear machining apparatus and a gear machining method with which the surface roughness, in a tooth profile evaluation range, of the surfaces of the teeth of a gear can be improved. This gear machining apparatus () machines shapes a gear () by machining a workpiece () with a grinding wheel, and comprises: a threaded grinding wheel () that shapes a gear () by machining a workpiece (); and a disc-shaped dresser () that shapes the threaded grinding wheel () while rotating with the threaded grinding wheel () in a meshed state. A pressure angle (a) of the dresser () is designed to be dislocated such that a reference pitch circle diameter (PCD) of the gear () shaped by the threaded grinding wheel () is outside the tooth profile evaluation range of a tooth surface (). 1. A gear machining apparatus configured to shape a gear by machining a workpiece with a grinding wheel , the gear machining apparatus comprising:a threaded grinding wheel configured to shape a gear by machining a workpiece; anda disc-shaped dresser configured to shape the threaded grinding wheel while rotating with the threaded grinding wheel in a meshed state,a pressure angle of the dresser being designed to be shifted so that a position, at which relative movement in a tooth profile direction of the gear does not occur between a surface of the threaded grinding wheel and a gear to be machined, is positioned outside of a tooth profile evaluation range, when the shaped threaded grinding wheel shapes the gear, andthe tooth profile evaluation range being set as a section of a tooth surface of the machined gear that functions as a tooth surface of the gear when the gear is used.2. The gear machining apparatus according to claim 1 , wherein the dresser is designed to be shifted so that a pressure angle thereof is decreased claim 1 , and the position at which relative movement does not occur is moved to an inner side of the tooth profile evaluation range.3. The gear machining apparatus according to ...

METHOD FOR THE PRODUCTION OF A DRESSING TOOL FOR A GRINDING TOOL

A method for the dressing of a multi-thread grinding worm by a dressing roll, wherein the grinding worm has at least two screw channels which are arranged parallel to another, which screw channels extend helically around an axis of the grinding worm and wherein the dressing roll has at least two adjacent dressing profiles which are arranged along an axis of the dressing roll, wherein the dressing profiles of the dressing roll are guided simultaneously through adjacent screw channels of the grinding worm during the dressing of the grinding worm. To improve the precision of the dressing the method includes the steps: a) execution of a first partial dressing process at which the dressing profiles of the dressing roll are guided simultaneously through first adjacent screw channels of the grinding worm; b) execution of at least one second partial dressing process at which the dressing profiles of the dressing roll are guided simultaneously through second adjacent screw channels of the grinding worm, wherein the second adjacent screw channels are, compared with step a), offset in the direction of the axis of the grinding worm by at least one screw channel of the grinding worm. 1. A method for the production of a dressing tool for a grinding tool , preferably for a grinding worm , wherein the dressing tool comprises at least one , preferably ring-shaped designed projection which extends radially , wherein the method comprises the steps:a) production of a shaped ring, which comprises a number of recesses at a radial inner area which number corresponds to the number of projections and which recesses are designed congruent to the projections;b) placing of abrasive material, especially of diamond powder, in the recesses;c) creation of a chemical or electro-chemical coating in the recesses so that the abrasive material is fixed in the region of the surface of the recesses;d) removal of the shaped ring, to obtain the so arose dressing tool;wherein a support element is placed ...

METHOD FOR MACHINING BEVEL GEARS USING AN ECCENTRICALLY-MOVED DRESSABLE CUP GRINDING WHEEL

A method which is executed in a grinding machine comprising 1. A method comprising: a tool spindle configured to receive a cup grinding wheel with an abrasive surface and to rotationally drive the cup grinding wheel around an axis of rotation of the tool spindle,', 'a dressing spindle configured to receive a dressing tool configured to dress the cup grinding wheel, and to rotationally drive the dressing tool around an axis of rotation of the dressing spindle, and', 'a workpiece spindle configured to receive the bevel gear workpiece and to rotationally drive the bevel gear workpiece around an axis of rotation of the bevel gear workpiece, wherein the workpiece spindle comprises an eccentric drive;, 'machining a bevel gear workpiece using a grinding machine including'}wherein the machining step includesa) rotationally driving the cup grinding wheel around the axis of rotation of the tool spindle at a first speed,b) rotationally driving the dressing tool around the axis of rotation of the dressing spindle at a second speed, andc) dressing the cup grinding wheel using the dressing tool at a predetermined, fixed speed ratio between the first speed and the second speed;and, after steps (a), (b), and (c):i. eccentrically rotationally driving the cup grinding wheel around the axis of rotation of the tool spindle at a first machining speed using the eccentric drive, andii. grinding machining the bevel gear workpiece using the cup grinding wheel.2. The method according to claim 1 , wherein claim 1 , at least during step (c) claim 1 , the fixed speed ratio defines a ratio of the first speed to the second speed.3. The method according to claim 1 , wherein claim 1 , at least during step (c) claim 1 , the fixed speed ratio defines a ratio of the second speed to the first speed.4. The method according to claim 2 , wherein the fixed speed ratio has a value defined by a natural number .5. The method according to claim 2 , wherein the fixed speed ratio has a value defined by a ...

Method for profiling single or multi=thread polishing screw

A disc=like profiling tool executes a repeated movement along a rotating polishing screw. Profiling is carried out in the areas of a screw thread axial section where no modifications of the profile exist in the profile trueing process (with linear contact) and in flank areas which have shape modifications as well as in the areas of the foot, head and rounded head of a screw thread axial section in a trueing process (with spot contact). Each of the two flank sides of a polishing screw axial section is divided into individual forming elements. To produce two forming elements with different engagement angle of a screw thread axial section a special profiled tool carries out between two profiling strokes a further movement in the form of a swivel turn about a rotary axis.

Method for profiling grinding screw

A rotating grinding screw carries out a repeated reciprocating motion along a disc-form rotating profiling tool. During a stroke the tool is in engagement with the helix spirals of the screw over their whole depth, and inside one section of the reciprocating travel carries out an additional movement in the form of a constant swinging motion around a first axis which is perpendicular to the rotational axis(E) of the tool to carry out desired modifications to the screw teeth flanks.

gear grinding machine

Eine Verzahnungsschleifmaschine umfasst: einen Bewegungsmechanismus (1, 2, 11, 12, 13, 14), an dem ein Profilschleifrad drehbar angebracht ist und der so ausgebildet ist, dass er das Profilschleifrad entlang X-, Z- und Y-Richtungen bewegt und das Profilschleifrad in einer Y-Z-Ebene schwenkt, eine NC-Vorrichtung (20) zum Steuern der Position des Profilschleifrads und eine Dreh-Abrichtvorrichtung (10) mit einem Abrichtwerkzeug (10a, 10b, 10d), das mit den Flanken der Profilgänge des Schleifrads in Kontakt kommt, während es drehangetrieben wird, um einen Abrichtvorgang auszuführen, wobei die NC-Vorrichtung den Bewegungsmechanismus numerisch so steuert, dass die Positionen in den X- und Z-Richtungen sowie die Schwenkposition in der Y-Z-Ebene des mit dem Profil versehenen Schleifrads eingestellt werden, während ein Kontakt des Abrichtwerkzeugs mit den Profilgängen des Schleifrads beibehalten wird, um den Andrückwinkel des Schleifrads zu modifizieren. A gear grinding machine comprises: a moving mechanism (1, 2, 11, 12, 13, 14) to which a profiling grinding wheel is rotatably mounted and which is adapted to move the profiling grinding wheel along X, Z and Y directions and A profile grinding wheel pivots in a YZ plane, an NC device (20) for controlling the position of the profile grinding wheel and a rotary dressing device (10) with a dressing tool (10a, 10b, 10d) in contact with the flanks of the profiles of the grinding wheel while it is being rotated to perform a dressing operation, the NC device numerically controls the moving mechanism so as to adjust the positions in the X and Z directions and the swing position in the YZ plane of the profiled grinding wheel while maintaining contact of the dressing tool with the profiles of the grinding wheel to modify the pressure angle of the grinding wheel.

Method for the flexible profiling of grinding worms, a profiling tool and a device for carrying out the method

Method and grinding machine for profiling a grinding tool

The method involves having a tooth-shaped profile (2) in an axial section, in which the tooth shaped profile has two oppositely arranged flanks (3, 4). Along a part of the height (X) of the tooth-shaped profile a disc-shaped dressing tool (1) is guided so that an abrasive area (6) contacts the first flank and a second abrasive area (7) contacts the second flank simultaneously. The tool and or the grinding tool are pivoted relatively to another around an axis (A) being arranged perpendicular to the axis of rotation (C) of the grinding tool, so that both flanks are dressed simultaneously. An independent claim is included for a grinding machine.

Vorrichtung zum gleichzeitigen Abrichten saemtlicher drei Profillinien einer zum Schleifen von genuteten Wellen, Zahnraedern o. dgl. dienenden Schleifscheibe

기어 연삭기

나사형 연삭휠 (3) 이 회전가능하게 장착되고, X 방향, Z 방향 및 Y 방향을 따라 나사형 연삭휠을 이동시키고, YZ 평면에서 나사형 연삭휠을 선회시키기 위해 배치된 이동 기구 (1, 2, 11, 12, 13, 14) 와, 나사형 연삭휠의 위치를 제어하기 위한 NC 장치 (20) 와, 회전 구동하면서 나사형 연삭휠의 나사산의 플랭크에 접촉하여 드레싱하는 나선형 드레싱 공구 (10a, 10b, 10d) 를 갖는 회전식 드레싱 장치를 갖는 기어 연삭기에 있어서, NC 장치는 나사형 연삭휠의 연삭휠 압력각을 수정하기 위해서, 드레싱 공구가 나사형 연삭휠의 나사산의 플랭크에 접촉하는 상태를 유지하면서, 나사형 연삭휠의 X 방향 위치 및 Z 방향 위치 그리고 YZ 평면에서의 선회 위치를 조정하도록 이동 기구를 수치 제어하는 제어 기능을 갖는 것을 특징으로 한다.

一种面齿轮磨削用鼓形蜗杆砂轮成形修整方法

本发明公开了一种面齿轮磨削用鼓形蜗杆砂轮成形修整方法，属于齿轮制造领域。采用成形金刚滚轮，在普通圆柱齿轮蜗杆砂轮磨齿机上对鼓形蜗杆砂轮进行修整。以砂轮的偏心摆动为修整冲程运动，基于虚拟中心距加工原理，将砂轮偏摆运动进行分解，通过四轴联动实现鼓形蜗杆砂轮螺旋面的双边成形修整。利用该方法修整面齿轮磨削用鼓形蜗杆砂轮具有较高的修整效率和精度，可以使面齿轮磨削摆脱专用机床的限制。

一种成形砂轮磨齿方法

本发明属于机械制造类，具体是一种成形砂轮磨齿方法，其特征在于：先根据工件的模数、直径加工金刚石专用砂轮修整器；金刚石专用砂轮修整器安装在专用机床上，按照磨齿的参数要求调整砂轮轴倾角；将金刚石专用砂轮修整器作相对于砂轮的运动，使砂轮修成所需的形状；已修形的砂轮与工件作相对运动，完成工件的齿形磨削。本发明由于在机床上安装了一专用砂轮修整器，随着砂轮直径大小与砂轮轴倾角的变化，随时对砂轮进行修整，并自动生成所需砂轮截面形状，然后用修整好的砂轮对工件进行齿形磨削，简单方便，可靠性好，本发明可广泛用于圆柱形直齿轮、斜齿轮、螺杆的齿形磨削。

나사식 연삭숫돌의 드레싱방법(method of dressing a threaded grinding wheel)

크라운기어를 연삭하기 위한 나사식 연삭숫돌(20)을 드레싱하는 방법이며, 이 방법은 크라운기어(2)의 접합 피니언 부재(14)의 피치와 동일한 피치를 가진 드레싱공구(30)를 피니언 부재(14)의 형태로 제공하는 단계를 포함한다. 드레싱공구(30)와 연삭숫돌(20)을 각각의 속도로 회전시킹에 따라 드레싱공구(30)와 연삭숫돌(20)은 서로 맞물려서 회전할 수 있다. 드레싱공구(30)와 연삭숫돌(20)이 맞물려서 회전함과 동시에 연삭숫돌(20)의 폭을 가로질러서 드레싱공구(30)를 시킴으로서 드레싱공구(30)는 연삭숫돌(20)의 폭을 따라 완전히 이동한다. 드레싱공구(30)가 따라 이동하는 경로는 접합피니언(14)의 중심점에 대응하는 연삭숫돌(30)상의 한점(16)주위를 활모양의 경로(38)로서 형성된다.

一种光学透镜冷加工抛光工艺

本发明公开了一种光学透镜冷加工抛光工艺，涉及光学透镜加工领域，包括一下步骤：步骤一：选择合适且可塑形的抛光盘；步骤二：加工抛光盘；步骤三：设置合适的抛光环境；步骤四：对光学透镜加工抛光。本发明通过恒温的抛光液池喷出恒压的抛光液，以此来对透镜进行降温，使对光学透镜抛光的温度控制在四十度左右，大大提高了抛光光学透镜的良品率，提高抛光盘的表面光洁度，大大提高了抛光效率，经过加工后的抛光盘也可提高工件的面型精度，完成对工件的抛光且兼顾工件的面型精度，对抛光工作人员要求较低，工作效率高，生产经济效益好。

tooth profile management system for a chip cutter grinding machine.

sistema de gerenciamento de perfil de dente para uma máquina de esmerilhamento de cortador de apara. o sistema divulgado inclui um computador pessoal (10) tendo coeficientes de correção (<244>) para a correção de erros no perfil de dente e coeficientes de correção (<225>) para a correção das posições de gradeamento, os coeficientes de correção sendo fornecidos para cada número de vezes que o cortador de apara é afiada e para cada característica do cortador de apara. os dados de perfil de dente alvo (do), os dados de erro de perfil de dente (<30>d) os quais são diferença entre os dados de perfilo alvo (do) e os dados de perfil de dente medidos (dm), e os coeficientes de correção (<244> e<225>) adquiridos em correspondência com o número de vezes afiadas e as características de corte são aplicada à equação dcc = do + <244>.<30>d +<225>, para achar os dados de perfil de dente objetivados (dcc). assim os dados de perfil de dente do cortador de apara (dc) são achados dos dados de perfil de dente objetivados (dcc). assim, o cortador de apara pode ser afiada apropriadamente, até quando o diâmetro externo e a espessura do dente do cortador são reduzidos como um resultado da afiação do cortador de apara. tooth profile management system for a chip cutter grinding machine. the disclosed system includes a personal computer (10) having correction coefficients (<244>) for correction of tooth profile errors and correction coefficients (<225>) for correction of grating positions, the correction coefficients being provided for each number of times the chip cutter is sharpened and for each chip cutter feature. target tooth profile data (do), tooth profile error data (<30> d) which are difference between target profile data (do) and measured tooth profile data (dm), and the correction coefficients (<244> and <225>) acquired in correspondence with the number of sharp times and the shear characteristics are ...

Method of dressing a threaded grinding wheel

크라운기어를연삭하기 위한 나사식 연삭숫돌(20)을 드레싱하는 방법이며, 이 방법은 크라운기어(2)의 접합피니언 부재(14)의 피치와 동일한 피치를 가진 드레싱공구(30)를 피니언 부재(14)의 형태로 제공하는 단계를 포함한다. 드레싱공구(30)와 연삭숫돌(20)을 각각의 속도로 회전시킴에 따라 드레싱공구(30)와 연삭숫돌(20)은 서로 맞물려서 회전할 수 있다. 드레싱공구(30)와 연삭숫돌(20)이 맞물려서 회전함과 동시에 연삭숫돌(20)의 폭을 가로질러서 드레싱공구(30)를 시킴으로써 드레싱공구(30)는 연삭숫돌(20)의 폭을 따라 완전히 이동한다. 드레싱공구(30)가 따라 이동하는 경로는 접합피니언(14)의 중심점에 대응하는 연삭숫돌(30)상의 한점(16)주위를 활모양의 경로(38)로서 형성된다. A method of dressing a threaded grinding wheel 20 for grinding a crown gear is a method of dressing tool 30 having the same pitch as that of the joint pinion member 14 of the crown gear (2). Providing in the form of 14). As the dressing tool 30 and the grinding wheel 20 are rotated at their respective speeds, the dressing tool 30 and the grinding wheel 20 may rotate to mesh with each other. As the dressing tool 30 and the grinding wheel 20 are engaged and rotated, the dressing tool 30 is made to cross the width of the grinding wheel 20 and the dressing tool 30 is completely along the width of the grinding wheel 20. Move. The path along which the dressing tool 30 moves is formed as a bow-shaped path 38 around a point 16 on the grinding wheel 30 corresponding to the center point of the joining pinion 14.

Device for trueing both end face and periphery of depressed center wheel

An apparatus for dressing and adjusting a dished or plate-shaped grinding wheel at a tooth flank-grinding machine for a gear has an adjustable grinding wheel support at which there is mounted the grinding wheel, and a dressing carriage which is adjustable radially with respect to the grinding wheel. Arranged at the dressing carriage diametrically opposite the work location at which there is effective the grinding wheel upon a tooth flank, is a dressing tool for the working or effective end surface of the grinding wheel and a dressing tool for the outer jacket or peripheral surface of the grinding wheel as well as a feeler for scanning the working end surface. The adjustment direction of the grinding wheel support encloses an acute angle gamma with the adjustment direction of the dressing carriage, this acute angle coinciding with the inclination of the rear surface of the grinding wheel, and the grinding wheel axis encloses with the adjustment direction of the grinding wheel support the complementary angle 90 DEG - gamma . The adjustment path of the dressing carriage in relation to the adjustment path of the grinding wheel support satisfies the equation: c:b=2-cos gamma .

Grinding stock

Multi-functional measurement system

터치트리거형 접촉프로브(84)와 비접촉프로브(86) 양자를 구성된 다목적 프로브 모두율(82)은 정밀베벨 및 하이포이드 기어를 제조하기 위해 컴퓨터로 제어되는 기계의 정밀도를 모니터하고 조절하는 방법 및 장치에 사용된다. 프로브 모두율(82)은 기계의 공구지지부(12)상에 장착되고 그리고 공구 및 공작물 지지부에 대한 상대위치를 모니터하고 재교정하도록 기계의 공작물지지부(14)상에 위치된 위치결정지점에 관련하여 사용된다. 프로브 모두유(82)은 (a) 초기스톡분류를 위해, (b) 선가공정밀도를 위해 (c) 제1편 테스트를 위해 (d) 본 공정정밀도를 위해, 그리고 (e) 후가공정밀도를 위해 기어 형상공작물의 경사부를 모니터하는데 또한 사용된다. 상기 프로브 모두율(82)는 연삭훨의 가공표면을 드레싱하고 나서 기계의 컵형상 연삭휠(28)의 위치를 조절하기 위해 공작물지지부(14)상에 장착된 소모성 테스트 위이퍼(120)와 결합하는데에 사용된다. Method and apparatus for monitoring and adjusting the precision of a computer controlled machine for manufacturing precision bevel and hypoid gears is a multi-purpose probe modulus 82 consisting of both touch-triggered contact probes 84 and non-contact probes 86 Used for The probe full scale 82 is mounted on the tool support 12 of the machine and in relation to the positioning point located on the workpiece support 14 of the machine to monitor and recalibrate relative positions to the tool and the workpiece support. Used. The probe probe oil 82 is used for (a) initial stock classification, (b) for preliminary process density, (c) for Part 1 testing, (d) for this process precision, and (e) for post process density. It is also used to monitor the slope of gear shaped workpieces. The probe percentage 82 is coupled with the consumable test wiper 120 mounted on the workpiece support 14 to adjust the position of the cup-shaped grinding wheel 28 of the machine after dressing the working surface of the grinding wheel. Used to

Gear tooth surface processing device and gear manufacturing method

一种齿面加工装置及齿轮制造方法，为改善高硬齿轮的表面粗糙度等提供能够调节的加工压力。齿面加工装置(10)具有斜齿状磨石(2)、能使斜齿状磨石的旋转轴(C)与被加工齿轮(W)的旋转轴(X)的相对位置移动的位置调节机构(3)及控制机构(7)，该控制机构具备使位置调节机构动作来调节斜齿状磨石的旋转轴与被加工齿轮的旋转轴的相对位置并使形成被加工齿轮的一个齿的齿面中仅一个被加工齿面(11)与斜齿状磨石的磨石齿面(21)抵接地使斜齿状磨石与被加工齿轮啮合的相对位置控制部(71)、使磨石旋转机构(4)动作的磨石旋转机构控制部(72)、及具有使旋转扭矩控制机构(5)动作以将旋转扭矩调节为规定的范围的扭矩控制机构控制部(73)。

Method and device for precision machining of flat gear

(57)【要約】 【課題】 歯車の合理的な精密機械加工を可能にする方 法および装置を提供することである。 【解決手段】 装置はスピンドル軸Ｃ′に平行にシフト 可能な加工物スピンドル３を有している。加工物スピン ドル３上に加工物歯車のほかに少なくとも１つのドレッ シング砥石歯車が装着され、ドレッシング砥石歯車上で 鼓形研削ウォーム１０が周期的にドレッシングされる。 加工物交換装置１２上でホーニング砥石歯車１８が追加 アーム１６上に回転可能に支持され、このホーニング砥 石歯車１８により加工物歯車は研削の後ホーニング仕上 げされる。ホーニング砥石歯車１８は同じドレッシング 砥石歯車または第２のドレッシング砥石歯車上でドレッ シングされる。この装置は歯車の合理的な精密機械加工 を可能にする。

Gear cutter

Изобретение относитс  к станкостроению , в частности к зубообрабатывающим станкам. Целью изобретени   вл етс  расширение технологических возможностей за счет создани  условий восстановлени  инструмента непосредственно на рабочем месте . На станине 1 зубообрабатывающего станка размещены инструментальна  стойка 2, стойка 3 издели , стол 4. На направл ющих инструментальной стойки 2 размещены устройство дл  заточки инструмента по передней грани и устройство дл  затыловани  инструмента. Оба устройства содержат шпиндели 7 шлифовальных кругов с приводом 6 и механизмы сообщени  им формообразующих движений, работающие от привода 18. 3 ил. This invention relates to a machine tool industry, in particular to gear processing machines. The aim of the invention is the expansion of technological capabilities by creating conditions for the restoration of the instrument directly at the workplace. An instrument stand 2, an article stand 3, a table 4 are placed on the frame 1 of the gear-processing machine. On the guides of the instrumental stand 2 there is a device for sharpening a tool along the front face and a device for cutting the tool. Both devices contain spindles 7 grinding wheels with a drive 6 and mechanisms for informing them of formative movements that are operated by a drive 18. 3 sludge.

Method and apparatus for grinding gears

Device for dressing grinding wheels

Nc table using roller gear cam

본 발명에 따르면, 로터리용 서보 모터에 연결되는 로터리용 구동 기어; 상기 로터리용 구동 기어와 치합되는 로터리용 피구동 기어; 상기 로터리용 피구동 기어와 연결되는 로터리용 롤러 기어 캠; 상기 로터리용 롤러 기어 캠과 결합되는 로터리용 터렛; 상기 로터리용 터렛에 연결되는 로터리 샤프트; 상기 로터리 샤프트의 상부에 설치되는 테이블; 틸팅용 서보 모터에 연결되는 틸팅용 구동 기어; 상기 틸팅용 구동 기어와 치합되는 틸팅용 피구동 기어; 상기 틸팅용 피구동 기어와 연결되는 틸팅용 롤러 기어 캠; 상기 틸팅용 롤러 기어 캠과 결합되는 틸팅용 터렛; 상기 틸팅용 터렛에 연결되는 틸팅용 샤프트; 상기 틸팅용 샤프트에 설치되는 틸팅용 하우징; 및 상기 틸팅용 샤프트를 지지하는 테이블 서포트 하우징;을 포함하는 롤러 기어 캠을 이용한 2축 수치제어 테이블이 제공된다. 이에 의하면, 웜샤프트와 웜휠 대신에 롤러 기어 캠과 터렛을 사용함으로써 상대적으로 고속회전을 할 수 있으며, 기어 치면을 연삭할 수 있도록 하여 정밀도를 높일 수 있으며, 기어 치면의 마모를 줄여서 정밀도 저하를 방지할 수 있는 효과를 갖는다.

Method and lathe for grinding gear wheels

A method of grinding gears is provided, wherein a workpiece support and a tool base are movable relative to one another for partial movements of the workpiece, for setting the gear teeth data, for accomplishing movements for configuring a tooth profile, and for the to-and-fro lengthwise stroke along the tooth flanks to be ground. A grinding wheel support is mounted at the tool base for pivotable movement about a pivot axis and a grinding wheel is mounted to be rotatably drivable at the grinding wheel support. The axis of rotation of the grinding wheel extends transversely with respect to the aforementioned pivot axis. The grinding wheel support is connected with the tool base by a pivot drive which, during grinding of a tooth flank, enables random changes of the grinding-pressure angle or angle of attack between the grinding wheel and the tooth flank.

Dressing tool and process of dressing a grinding tool

Machine for grinding gear flanks using shaped disks

Electrodeposited diamond dresser for shaping screw-type grindstone for gear grinding and manufacturing method thereof

본 발명은, 높은 정밀도의 드레싱이 가능하고 수명이 긴 기어 연마용 나사형 숫돌의 성형용 전착 다이아몬드 드레서를 제공한다. 외주면을 향하여 얇아지도록 외주부의 양측에 테이퍼면(21)을 가진 원반형으로 형성된 휠(2)과, 테이퍼면의 외주 에지부에 연장되고, 복수 개의 소입경 다이아몬드 지립이 도금층에 의해 도금 부착된 다이아몬드 지립층(3)과, 휠의 외주면에 형성되고, 소정 각도를 이루는 홈내 양 벽면을 가지는 복수 개의 장착 홈(5)과, 소입경 다이아몬드 지립보다 큰 입상으로 형성되고, 소정 각도와 동등한 장착 결정면(M1, M2)을 가지고, 장착 결정면을 홈내 양 벽면(51a, 51b)에 설치했을 때, 휠의 외주면과 평행해지는 면이 벽개면으로 되지 않는 결정인 다면체 단결정 다이아몬드 지립(4)을 포함하고, 각 다면체 단결정 다이아몬드 지립은, 장착 결정면이 휠의 장착 홈의 홈내 양 벽면에 도금층(32)에 의해 도금 부착되어 있다. The present invention provides an electrodeposited diamond dresser for shaping a screw-type grindstone for gear grinding that is capable of high-precision dressing and has a long life. A wheel (2) formed in a disk shape with tapered surfaces (21) on both sides of the outer circumference to be thinner toward the outer circumferential surface, and a diamond abrasive grain that extends to the outer circumferential edge of the tapered surface, and a plurality of small-diameter diamond grains are plated by a plating layer. The layer 3, a plurality of mounting grooves 5 formed on the outer circumferential surface of the wheel and having both wall surfaces in the grooves forming a predetermined angle, and a mounting crystal surface M1 that is formed in a granular shape larger than that of a small-diameter diamond abrasive grain, and is equal to a predetermined angle. , M2), and when the mounting crystal surface is installed on both wall surfaces 51a and 51b in the groove, the surface parallel to the outer circumferential surface of the wheel contains polyhedral single crystal diamond grains (4), which are crystals that do not become cleavage surfaces, and each polyhedral single crystal The diamond abrasive grains are plated with a plating layer 32 on both wall surfaces of the mounting grooves of the wheel with the mounting crystal surface.

Method and apparatus for finishing single-start or multistart wormlike or thread-like article

A process for dressing a single or multiple-grooved worm or threaded workpiece by a single or multiple-grooved worm or threaded dressing tool includes the turning of the workpiece and tool with the dressing tool in a comb-type contact with the workpiece. By using an additional axial relative movement between the dressing tool and the workpiece, determined by the radial positioning and return movements, the contact points are displaced such that the desired grinding profile is produced on the workpiece. Since the entire surface area of the instantaneous contact points is significantly smaller than the entire profile area of the workpiece, the cutting forces which occur are relatively small, so that high dressing speeds can be obtained. It is also possible to make various flank corrections on the workpiece. The apparatus for carrying out the process is also disclosed.

Method of dressing barrel worm-shaped tool, dressing apparatus, and internal-gear grinding machine

내접 기어의 치면을 연삭하도록 형성되는 배럴 웜형 공구의 드레싱을 고정밀도로 실시하기 위한 배럴 웜형 공구의 드레싱 방법, 드레싱 장치 및 내접 기어 연삭기가 제공된다. 이를 위해, 디스크형 디스크 드레서 (13) 는 축선 방향의 양단부에서부터 중간부쪽으로 점차적으로 그 직경이 증가하고 또한 내접 기어 (11) 를 연삭하는데 사용되는 배럴 웜형 숫돌 (12) 과 맞물리게 된다. 배럴 웜형 숫돌 (12) 은 상기 내접 기어 (11) 를 위한 수직한 워크 회전축 (C1) 에 대하여 미리 정해진 축 교차각 (A1) 을 이루는 공구 회전축 (B) 주변을 회전한다. 상기 내접 기어 (11) 의 나선각과 동일한 각으로 배치되는 상기 디스크 드레서 (13) 는 드레서 회전축 (D) 주변을 회전한다. 서로 맞물려서 둘 다 회전하는 상기 배럴 웜형 숫돌 (12) 및 상기 디스크 드레서 (13) 는 수평면내에서 서로 상대적으로 공전된다. A dressing method, a dressing device, and an internal gear grinding machine of a barrel worm type tool for high-precision dressing of a barrel worm type tool formed to grind the tooth surface of the internal gear are provided. For this purpose, the disk-shaped disk dresser 13 is gradually engaged from both ends in the axial direction toward the middle, and is engaged with the barrel worm-shaped grindstone 12 used for grinding the internal gear 11. The barrel worm-like grindstone 12 rotates around the tool axis of rotation B, which makes a predetermined axis crossing angle A1 with respect to the vertical workpiece axis of rotation C1 for the internal gear 11. The disk dresser 13 arranged at the same angle as the helix angle of the internal gear 11 rotates around the dresser rotation axis D. As shown in FIG. The barrel worm-like grindstone 12 and the disk dresser 13, which both mesh with each other and rotate, are idle relative to one another in a horizontal plane.

Method and devices for the rapid and flexible dressing of grinding worms

단일 또는 다중 나사산 연삭 웜(34)을 드레싱(dressing)하기 위한 방법이 개시되는데, 연삭 웜과 기어형 드레싱 공구 사이에 기본 롤링 운동이 발생된다. 연삭 웜의 플랭크를 수정하기 위해, 추가적인 상대 운동이 기본 롤링 운동에 중첩된다. 또한, 이러한 방법을 위해 특별히 설계된 보조 구동기, 대응적으로 설계된 공작 기계, 및 본 방법을 수행하기 위한 드레싱 공구가 개시된다. A method for dressing a single or multi-thread grinding worm (34) is disclosed, wherein a basic rolling motion occurs between the grinding worm and a geared dressing tool. To correct the flank of the grinding worm, an additional relative motion is superimposed on the basic rolling motion. Also disclosed are auxiliary actuators specially designed for this method, correspondingly designed machine tools and dressing tools for carrying out the method.

Correction apparatus for regulating wheel in centerless grinder

(57)【要約】本公報は電子出願前の出願データであるた め要約のデータは記録されません。

Arrangement for dressing the grinding wheel

Изобретение относитс  к области станкостроени  и может быть использовано при шлифовании зубчатых изделий, в т.ч. некруглых колес, профильным кругом. Цель изобретени  - расширение технологических возможностей за счет возможности правки фасонных поверхностей. Поставленна  цель достигаетс  тем, что закрепленный в шпинделе станка фасонного шлифовани  круг 6 правитс  посредством устройства, копир 3 которого установлен соосно обрабатываемому изделию 2. На поршне 4 устройства смонтирован рычажный механизм, состо щий из шатуна 7 и одноплечевого рычага 8, шарнирно соединенных с корпусом и между собой. Рычаги 8 снабжены щупами 9 и алмазными карандашами 10. Щупы ввод тс  во впадину копира, который выполнен в виде эталонного зубчатого издели . После опускани  шлифовального круга посредством руко тки 11 поочередно провод т правку фасонного профил  алмазными карандашами 10. После завершени  правки шлифовальный круг поджимают над копиром и перевод т в зону шлифовани  впадины зубьев издели . 3 ил. The invention relates to the field of machine tools and can be used for grinding gear products, including non-circular wheels, profile wheel. The purpose of the invention is the expansion of technological capabilities due to the possibility of editing shaped surfaces. The goal is achieved in that the circle 6 fixed in the spindle of the machine for grinding is governed by a device whose copier 3 is installed coaxially to the workpiece 2. A lever mechanism consisting of a connecting rod 7 and a single-arm lever 8 pivotally connected to the housing is mounted on the piston 4 of the device between themselves. The levers 8 are provided with probes 9 and diamond pencils 10. The probes are inserted into the copier trough, which is designed as a reference toothed article. After the grinding wheel is lowered with the handle 11, the profile profile is alternately straightened with diamond pencils 10. After the straightening is completed, the grinding wheel is pressed over the copier and ...

Device for dressing depressed-center grinding wheel

A dressing device for a substantially plate-shaped grinding wheel at a tooth flank-grinding machine for a gear comprising a dressing tool which is radially feedable by a drive means for dressing the outer or jacket surface of the grinding wheel. Measuring means serve to measure the axial feed movement of the or dished grinding wheel and the radial feed movement of the dressing tool. Control means serve to control the drive means for the radial feed movement in such a manner that its relationship to the axial feed movement of the grinding wheel corresponds to the tangent of the angle of inclination of the rear surface of the grinding wheel with respect to its lengthwise axis.

Method and device for grinding tooth

How to change the screw type grinding wheel

Apparatus for dressing cup wheel of gear grinding machine

Gear shape process device and gear manufacture method

一种齿面加工装置及齿轮制造方法，为改善高硬齿轮的表面粗糙度等提供能够调节的加工压力。齿面加工装置(10)具有斜齿状磨石(2)、能使斜齿状磨石的旋转轴(C)与被加工齿轮的旋转轴(X)的相对位置移动的位置调节机构(3)及控制机构(7)，该控制机构具备使位置调节机构动作来调节斜齿状磨石的旋转轴与被加工齿轮的旋转轴的相对位置并使形成被加工齿轮的一个齿的齿面中仅一个被加工齿面(11)与斜齿状磨石的磨石齿面(21)抵接地使斜齿状磨石与被加工齿轮啮合的相对位置控制部、使磨石旋转机构动作的磨石旋转机构控制部(72)、及具有使旋转扭矩控制机构(5)动作以将旋转扭矩调节为规定的范围的扭矩控制机构控制部(73)。

Semi-automatic dressing accessory

A dresser apparatus for dressing a grinding wheel to a desired cross sectional shape, the apparatus including a dresser frame connected to a stationary dresser base, and a slider block slidably connected to the dresser frame. A follower frame is mounted to the slider block for sliding movement with respect to the slider block in a second, substantially vertical direction. Linear actuator means are disclosed for causing the slider block to slide in the first direction with respect to the dresser frame. A cam is provided, corresponding to the desired shape of the grinding wheel, and a cam follower is attached to the follower frame and postioned thereon so as to bear on the cam surface. In one embodiment the cam follower causes the follower frame to move in the second direction according to the shape of the cam surface while the linear actuator means moves the slider block in the first direction. In another embodiment, directed to dressing wheels with a flat or reverse angled surface, a second linear actuator provides the vertical movement. A grinding wheel dressing tool is affixed to the dresser arm and positioned so as to bear on and dress the grinding wheel in conformity with the shape of the cam surface. The dressing tool is attached to the dresser arm, and the cam follower to the follower frame, at an oblique angle with respect to the grinding wheel axis.

Gear grinder and method for dressing a grinding tool

The machine has a linear movement unit (15) movable along a linear movement axis (Z1) with respect to a machine bed (1). A rotatable movement unit (17) is arranged at the linear unit in a rotatable manner around a rotatable movement axis (A1). A tool spindle (18) is arranged at the rotatable unit and provided for rotatable driving of a toothing grinding tool e.g. grinding disk. Another linear movement unit (19) is movable along another linear movement axis, and a trueing spindle is arranged at the latter linear unit, where the latter linear unit is arranged at the former linear unit. An independent claim is also included for a method for aligning a grinding tool in a gear grinding machine.

ABRASIVE TOOTHED WHEEL TOOL FOR FINE MACHINING OF THE CUTTER WHEEL SIDE, METHOD FOR DRESSING SUCH A TOOL, AND DRESSING TOOL PROVIDED THEREFOR

Method and apparatus for truing a grinding wheel

1,007,814. Grinding. CINCINNATI MILLING MACHINE CO. Sept. 4, 1964 [Jan. 22, 1964], No. 36459/64. Heading B3D. A method of trueing a grinding wheel 12 with a trueing roller 35 comprises aligning the roller transverse to the grinding wheel for contact for point contact of the periphery of the roller with the grinding wheel in an initial trueing cut, the point of contact being in a plane perpendicular to the axis of the roller, advancing the roller in discrete movements for each successive trueing cut, and repositioning the roller relative to the grinding wheel when the roller is advanced to change the point of contact on the periphery of the roller to lie in successive planes parallel to the first plane. The grinding wheel may be mounted on the slide 13 of a plunge-cut centre-type machine for grinding workpieces 8 held between a headstock 14 and a tailstock. A support 17 is secured to the slide 13 and has ways 16 along which a feed member 15 is movable by a screw 19 driven by a step motor 18. A cross slide 20 is movable along ways 21 in the feed member 15 transverse to the ways 16 by a piston-andcylinder device. A bar 27 is slidably mounted in the cross slide 20 and at one end carries a follower 29 which is urged by a spring 27a into contact with a cam 28 corresponding to the profile to be formed on the grinding wheel and mounted on an upper plate 15a of the feed member 15, and, at the other end rotatably supports the trueing roller 35 which is driven by a motor 36. The trueing roller is disposed with its axis A perpendicular to a radial plane L and with its lower edge or plane in the plane L for an initial trueing operation on the grinding wheel, its radius then being R1, the piston-andcylinder device holding the trueing roller to one side of the wheel. The ways 16 are at an inclination 2 to the radial plane and when the next trueing operation is to be effected, the step motor 18 is operated to advance the roller an increment of feed, the movement also moving the ...

Improvements to grinding machines

Method of and apparatus for machining spur and helical gears

Disclosed herein is a process and apparatus for grinding tooth surfaces of spur and helical gears by a generating meth-od. The outer tooth surfaces (4) of a theoretical ring gear (6) are conjugate to the grinding surfaces (3) along the width of a gen-erally hourglass shaped grinding wheel (2). The grinding wheel (2) is rotated which in turn causes the theoretical ring gear (6) to rotate. A work gear (8) is rotated in mesh with the internal tooth surfaces (10) of the theoretical ring gear (6) and simul-taneously is traversed in mesh across the width of the grinding wheel (2) with the center of the work gear (Xw) moving in a path (12) about the center of the theoretical ring gear (X1).

APPARATUS FOR IN-LINE DIAMONDING SCREWS USED IN GEAR-RECTIFIER MACHINES

L'appareillage pour le diamantage de meules à vis selon la présente invention offre une méthode plus universelle en ce qui concerne son fonctionnement, par rapport aux méthodes traditionnelles de diamantage sur place confié à l'opérateur, étant donné que les têtes porte-meule 1 et porte-diamant 2 sont mises en mouvement par de respectifs moteurs 3, 4 commandés en synchronisme exact à travers un circuit de commande et contrôle 5 complètement électronique et qu'on prévoit un moteur 3 relié directement à l'axe de la meule 6 auquel sont associés deux distincts générateurs d'impulsions à fréquence différente 7, 8 réciproquement en phase et susceptibles de commutation en fonction du type d'opération à exécuter, à savoir de rectification d'une pièce ou de diamantage de la meule 6, de manière que la fréquence des impulsions en sortie de ceux-ci ne soit pas supérieure à celle qui peut être lue par le circuit de commande et contrôle 5. The apparatus for diamond grinding of screw grindstones according to the present invention offers a more universal method as regards its operation, compared to the traditional methods of diamond grinding on site entrusted to the operator, since the grinding heads 1 and diamond holder 2 are set in motion by respective motors 3, 4 controlled in exact synchronism through a completely electronic command and control circuit 5 and that a motor 3 is provided directly connected to the axis of the grinding wheel 6 to which are associated two separate pulse generators with different frequency 7, 8 reciprocally in phase and capable of switching depending on the type of operation to be performed, namely grinding of a part or diamond coating of the grinding wheel 6, so that the frequency of the pulses at the output thereof is not greater than that which can be read by the command and control circuit 5.

APPARATUS FOR DRESSING THE WHEELS

Appareil à dresser les meules. Il comprend un porte-outil mobile 22 sur lequel est monté un premier coulisseau comportant un suiveur 38 du profil 40 d'un premier gabarit 42 et portant à l'autre extremité un support 14 articulé en 18 et portant une pointe en diamant 12, un ressort 48 maintenant le support contre une butée 52 et un second coulisseau comportant un suiveur de profil 62 portant sur le profil 64 d'un second gabarit 66 pour modifier pendant une partie du déplacement du porte-outil 22 la position de la pointe 12 par rapport au profil 40 afin de modifier le profil dressé sur la surface de la meule. Application au dressage des meules utilisées pour rectifier les dents des engrenages à développante de cercle. Grinding wheel dresser. It comprises a mobile tool holder 22 on which is mounted a first slide comprising a follower 38 of the profile 40 of a first jig 42 and carrying at the other end a support 14 articulated at 18 and carrying a diamond point 12, a spring 48 holding the support against a stop 52 and a second slide comprising a profile follower 62 bearing on the profile 64 of a second jig 66 to modify during part of the movement of the tool holder 22 the position of the point 12 in relation to to profile 40 in order to modify the profile drawn up on the surface of the grinding wheel. Application to the dressing of grinding wheels used for grinding the teeth of involute gears.

DEVICE FOR DRESSING THE PROFILE OF A GRINDING WHEEL

Method and machine for cutting the flanks of the teeth of gear wheels

Improvements to grinding wheel grinding mechanisms

Gear grinding machine

Gear grinding machine

Patent FR2361974B1

Device for cutting grinding wheels

Patent FR2459103B1

DEVICE FOR DRESSING THE PROFILE OF A GRINDING WHEEL

LE DISPOSITIF POUR DRESSER UNE MEULE 1 AYANT UN PROFIL EXTERIEUR DE RAYON R COMPREND UN ROULEAU DE DRESSAGE 2 AYANT UN PROFIL DE DRESSAGE CIRCULAIRE DE RAYON R. POUR POUVOIR DRESSER DES MEULES DE RAYONS DE PROFILS DIFFERENTS, LE ROULEAU DE DRESSAGE ET LA MEULE SONT DEPLACES L'UN PAR RAPPORT A L'AUTRE DE TELLE SORTE QUE LE MOUVEMENT RELATIF OBTENU AIT LA FORME D'UN ARC DE CERCLE AYANT UN RAYON DONT LA LONGUEUR EST EGALE A R-R, CE RAYON POUVANT ETRE REGLE POUR QUE L'ON PUISSE DONNER A LA MEULE UN RAYON DE PROFIL VOULU. THE DEVICE FOR DRESSING A WHEEL 1 HAVING AN EXTERNAL PROFILE OF R-RADIUS INCLUDES A DRESSING ROLLER 2 HAVING A CIRCULAR DRESSING PROFILE OF R-RADIUS TO BE ABLE TO DRESS WHEELS OF RADIUS OF DIFFERENT PROFILES, THE DRESSING ROLLER AND THE DISPLAY THE ONE IN RELATION TO THE OTHER IN SUCH SO THAT THE RELATIVE MOVEMENT OBTAINED HAS THE FORM OF A CIRCLE ARC HAVING A RADIUS WHOSE LENGTH IS EQUAL TO RR, THIS RADIUS CAN BE SET SO THAT WE CAN GIVE A THE WHEEL A WANTED PROFILE RADIUS.

Grinding wheel grinding mechanism

Device for profiling grinding wheels of gear teeth

Grinding wheel cutting mechanism

Grinding wheel dresser

Grinding machine for grinding machines