Improvements in the grinding of hobs of worm form

... 222,937. Herbert, Sir A., and Shaw, F. W. July 7, 1923. Milling-cutters, sharpening. - In the relief grinding of hobs of worm form, the grinding- wheel is of relatively large disc form and has a bevelled peripheral edge D<2>, Fig. 1, the line of contact of which with the side of the tooth lies evenly along the tooth and also lies in the axial plane of the wheel, this relationship being maintained during the grinding operation throughout the relative motion of the wheel and the hob. In the grinding of worm hobs with involute and certain other teeth, the edge. D<2> of the wheel is bevelled so as to provide a straight line contact with the worm teeth. The grinding-wheel may be bevelled on both edges, as shown in Fig. 3, and is thus adapted, by slight axial movement, to grind the tooth faces at both sides of the space between them. In this arrangement the axis X X of the wheel is actually tilted slightly with respect to the plane of the figure, crossing the helix angle of the worm at right ...

Numerical control relief-grinding machine workpiece head-rest

The invention relates to a numerical control shovel grinder workpiece head frame, belonging to the technical field of machine processing equipment. The numerical control shovel grinder workpiece head frame is characterized in that a motor stator is fixed in the head frame body; a motor rotor is fixed on a mainshaft; the lower end of the mainshaft is provided with a bearing; a bearing external ring is arranged in a side cover hole; the upper end of the mainshaft is provided with the bearing; the bearing external ring is arranged in the upper cover hole; an oil seal liner, a dial plate and an upper cover are respectively arranged on the mainshaft; the end of the mainshaft is provided with the oil seal; a tip is arranged at the center of the mainshaft; a round angle encoder is sheathed at the end of the mainshaft. The numerical control shovel grinder workpiece head frame has simple, compact and reasonable structure and eliminates the backlash and accumulated error of the original worm and ...

ЧЕРВЯЧНЫЙ ИНСТРУМЕНТ, СПОСОБ ЕГО ИЗГОТОВЛЕНИЯ, ОБОРУДОВАНИЕ ДЛЯ ЕГО ИЗГОТОВЛЕНИЯ И ЭКСПЛУАТАЦИИ

Изобретение относится к машиностроению, в частности к червячным инструментам для обработки зубчатых изделий. Червячный инструмент имеет режущую часть и сформирован на базе основного гиперболоидного червяка, полученного при винтовом движении исходной зубчатой рейки, имеющей наклон вдоль оси ее винтового движения под углом, равным углу подъема витков червяка на начальном цилиндре. При этом для уменьшения искажения профиля зубьев активный червяк выполнен при винтовом движении всего ряда зубьев исходной зубчатой рейки, входящих в станочное зацепление с обрабатываемым колесом. Режущая часть выполнена в виде плоских одновитковых пружин или закрепляемых пружинами режущих пластин. Способ изготовления заключается в том, что для совмещения профиля червяка с профилем исходной рейки после сборки и установки на зубообрабатывающем станке выполняют правку червячного инструмента в сечении, нормальном к среднему витку при неизменном профиле витков, равном профилю всех входящих в станочное зацепление с обрабатываемым ...

Приспособление для фасонной заточки многолезвийных инструментов

Способ заточки прецизионных червячных фрез

Изобретение относится к области металлообработки, в частности к произвоДству многолезвийного инструмента , например прецизионных червячных фрез. Цель изобретения - повышение точности заточки за счет учета несовпадения оси вращения фрезы с осью ее наружной поверхности. В процессе заточки фрезу 1 базируют произвольным образом на оправке 2, установленной в шпинделе заточного станка. При повороте на каждый зуб фрезы 1 позиционируют относительно базы станка в равном угловом положении так, что угол поворота кратен числу ее зубьев затем осуществляют дополнительное угловое смещение фрезы 1 относительно оправки 2, определяемое соотноиением V| 2tr:Z, где .- угол поворотс S та фрезы; Z - число зубьев фрезы. 4 ил. сл ISP ч 00 00 00 ...

Устройство для обработки фасонных поверхностей инструментов

Изобретение относится к машиностроению и может быть использовано для правки фасонньк шлифовальных кругов . Цель изобретения - расширение технологических возможностей за счет создания условий для правки фасонных шлифовальных кругов. Устройство имеет корпус 1, на котором выполнена плоскость 3, контактирующая со свободно вращающимся роликом 4, закрепленным в поворотной шайбе 5, фиксирующейся кольцом и винтом. Поворотная шайба расположена в.окне 8 штока 9. Один конец штока проходит через окно шарнира 10, а противоположный - через окно в подвижной опоре, состоящей из трех направляющих роликов, расположенных в корпусе 13 и на оси подвижной рамки 15, На торце штока расположена площадка 17, контактирующая с закрепленным на корпусе упором 18. К штоку жестко прикреплена консоль 19, в которой закреплен правящий эле- с мент 2 с механизмом 20 его регулирования . 4 ил. (Л СО со ел 4Sb ...

Способ заточки по задней поверхности винтовых зубьев фасонного инструмента

Резьбошлифовальный станок

Способ обработки червячных фрез

Изобретение относится к металлообработке , в частности к обработке червячных фрез. Цель изобретения - повышение производительности за счет совмещения операций формообразования профиля и его затылования. На заготовке червячной фрезы 1 предварительно производят нарезание стружечных канавок 2. Затем инструментом второго порядка осуществляют формообразование профиля В качестве инструмента используют дисковую фрезу 3 и пальцевую фрезу Инструмент устанавливают на глубину нарезаемого зуба до начала процесса формообразования 2 ил ...

Способ изготовления червячных фрез

СПОСОБ ИЗГОТОВЛЕНИЯ ЧЕРВЯЧНЫХ ФРЕЗ со вставными режущими элементами , имеющими две противоположные боковые поверхности, при котором режущие элементы устанавливают по технологической винтовой поверхности , а затем производят затьалование боковых поверхностей и размещение режущих элементов по рабочей винтовой поверхности, отличающийся тем, что, с целью повышения , точности и технологичности, установку режущих элементов по технологической винтовой поверхности производят в два этапа, на первом из которых выбирают число заходов больше числа заходов рабочей винтовой поверхности, и после первого этапа осуществляют затылование одной из боковых поверхностей, на втором этапе выбирают число заходов меньше числа заходов рабочей винтовой поверхности и осуществляют затылование второй боковой поверхности. (Я с: ю ...

Способ затылования червячных фрез

Способ заточки червячных мелкомодульных прецизионных фрез на универсально-затыловочном станке

Copying mechanism for milling-cutter grinding - has lead-screw with trapezium profile inclined to slide movement direction

The copying mechanism is for grinding the teeth of a milling cutter producing spur gears. It has a leadscrew (3) determining the pitch (P) of the cutter profile. A cam is provided for undercutting the teeth. The cutter (2) is mounted by its spindle (1) in a headstock (5), the latter being in turn mounted on a slide (6). The basic cutting edges are situated between the cutter teeth and on a cone (A - A) with an apex angle of 2w. The profile of the leadscrew is trapezium shaped with a 20 deg. angle, and as the slide turns it moves along the axis (A-A) at angle of + omega to to that of the leadscrew. However the axis of the cutter is set parallel to that of the leadscrew when the headstock is turned in the opposite direction through an angle of - omega. USE/ADVANTAGE - High precision copying mechanism for grinding teeth of milling cutter for spur gears.

Verfahren zur Herstellung von Stirnkegelrad-Waelzfraesern

Verfahren zum Schleifen der Freiflaeche von Form- und Abwaelzfraesern

Improvements in or relating to the sharpening and/or re-sharpening of hobs

... 1,033,677. Grinding; milling cutters. F. RIEBEL. March 26, 1963 [March 29, 1962], No. 11873/63. Addition to 989,244. Heading B3D and B3K. A method of sharpening a hob by removing the wear on the back face of the teeth comprises plunge feeding a grinding-wheel having a profile complementary to the hob into the back surface of the teeth or by feeding the hob into the grinding-wheel. As shown in Fig. 1, the grinding-wheel 13 may be moved in any of the directions 14, 15, 16 within the arc 17 to grind the teeth 12 but, in the preferred device described, is moved in the direction 16. The grinding- wheel, which may have a multiple profile corresponding to more than one tooth of the hob, is mounted on a slide 52, Fig. 7, adjustable on a further slide 53 which is urged towards an abutment 59 by a spring 58, the slide being supported on rollers 57 and moved to effect the plunge feed by a belt-driven eccentric 60. At each retraction of the slide 53, a switch 62, Fig. 8, actuates a solenoid 63 to withdraw ...

Method of and apparatus for manufacturing hobs and worms

... 1,122,631. Grinding and trueing hobs and worms. ZAHNSCHNEIDEMASCHINENFABRIK MODUL VEB. 14 Sept., 1965, No. 39232/65. Headings B3D and B3K. Means for generating a hob or worm comprises a tool moved parallel to the workpiece axis and means for modifying the movement to give a varying tooth thickness along the length of the work. The means may be incorporated in a lathe, a hobbing or tool-grinding machine, or a trueing machine for a grinding hob. Referring to Fig. 1, hobs can be generated wherein #t 1 = #t 2 = #t 3 to produce straight teeth or where #t 1 >#t 2 >#t 3 for crowned teeth. The drive to the hob 1, Fig. 2, also rotates gears 16, 17 to rotate a lead-screw 13 engaging a nut 14. A follower 20 on the nut engages a straight or curved cam-bar 18 so that a rotational modifying movement is applied to the traverse of the grinding wheel 11. At the halfway point, the bar 18 pivots about a pin 19 and engages a stop (22) to reverse the effect of the modification. When grinding the opposite tooth ...

Tooth-profile management system for shaving-cutter grinding machine

Method of grinding hobs

Tool for producing crown wheels, and method for producing such a tool

PCT No. PCT/NL91/00245 Sec. 371 Date May 14, 1993 Sec. 102(e) Date May 14, 1993 PCT Filed Nov. 29, 1991 PCT Pub. No. WO92/09395 PCT Pub. Date Jun. 11, 1992.A tool for producing crown wheels by means of a generating process comprises a disc which is rotatable about its axis, with machining elements which are provided on the periphery thereof and the cutting edges of which lie in the outer surface of a profile determining the shape of the teeth of a crown wheel to be produced with the tool, said profile extending essentially helically over the periphery of the disc. In each cross-section of the helical profile the outer contour (25) of the cross-section is at least of a part of the outer contour of the tooth profile of an imaginary gear wheel (23) with involute teeth and preferably straight lines connecting thereto, in such a way that in the case of each of the teeth (22) with a tooth tip and two tooth flanks bounded by the outer contour (25) of the cross-section the distance between each ...

Apparatus for grinding the teeth of a hob for spur gears in precision mechanics for overhead cutting

The invention relates to an apparatus for grinding the teeth of a hob for spur gears in precision mechanics for overhead cutting and includes the spindle assembly for the hob, the assembly of the movement screw of trapezoidal profile, which is kinematically connected by means of gears to the spindle assembly, the guide group >>G<<, into which the spindle assembly is mounted and can rotate to the required angle >> omega <<, the cam disc for oscillation in the Y-Y direction of the grindstone, which cam disc is kinematically connected by means of gears to the movement screw, and the stepped stem with linear scale, onto which is screwed the cone with circular scale for displacement of the grindstone to the equivalent quantity >>n . DELTA P<< in the X-X direction.

Milling tool, and milling insert kit

Milling tool and milling insert kit are provided for the gash milling of a workpiece. The tool comprises a tool body that defines a rotation axis and has a first end, an opposite second end, and a peripheral surface that extends around the rotation axis between the first end and the second end. A large number of separated seats, which are arranged one after the other in the tool body along a line and receive one each of corresponding number of replaceable milling inserts, comprise a primary main cutting edge and a secondary main cutting edge that converge to each other. The milling inserts comprise outer milling inserts, which project from the tool body by a first length from the rotation axis, and inner milling inserts, which project from the tool body by a second length from the rotation axis. The first length is considerably greater than the second length.

Method for Generating of Non-Straight Gear Teeth

A gear teeth generation method carried out on multi-axis machines, using a disk tool. The tool travels along the gear tooth where its motion along a gap adjacent to the gear tooth is synchronized with the roll motion performed by said multi-axis machine so that the pressure line is on the machining surface of the tool. The tool machines a bottom land surface of the tooth with its perimeter. Machining of the tooth flank starts with the tool positioned such that the pressure line is near a first edge of the tooth flank. Positions of the tool and the tooth are changed to cause the pressure line to move away from the first edge of the tooth flank. Machining is finished when the pressure line reaches the opposite edge of the tool flank. The pressure line is on the machining surface of the tool throughout every stage of machining. 17-. (canceled)8. A method of generating gear teeth utilizing a multi-axis machine having a disk tool comprising:executing a roll motion with the multi-axis machine;moving the disk tool along a gear tooth with a motion along a gap adjacent the gear tooth synchronized with the roll motion, such that a machining pressure line is located on a machining surface of the disk tool, thereby machining a flank of the tooth; positioning the disk tool relative to the gear tooth such that said pressure line is near a first edge of the flank of the tooth; and', 'consecutively changing the relative positions of the disk tool and gear tooth such that said pressure line moves away from the first edge of the tooth flank until said pressure line reaches an opposite edge of the tooth flank, and said pressure line remains on the machining surface of the disk tool throughout said machining., 'wherein said machining includes9. A method according to claim 8 , wherein said machining does not include machining of a bottom land surface of the tooth with a perimeter of the disk tool.10. A method according to claim 8 , wherein said machining includes machining a bottom land ...

HOLLOW GEAR HOB

A hob for a cutting apparatus including a hollow body of a sintered hard metal composition and a cavity located within the body, the cavity having a volume in the range of about 10% to about 90% of the volume of the body. 112-. (canceled)13. A method of forming a hob of a cutting apparatus , comprising:providing a hollow body of a sintered hard metal composition, wherein at least one cavity is located within the body, the at least one cavity having a volume in the range of about 10% to about 90% of the volume of the body, and at least one sintered part is fused to the body, and wherein providing the hollow body includes providing a core having opposed sides and fusing a sintered element fused to each side of the core so as to seal the at least one cavity.14. The method according to claim 13 , wherein the hard metal composition is solid cemented carbide.15. (canceled)16. The method according to claim 13 , wherein the hard metal composition is tungsten carbide bonded with a cobalt alloy binder.17. The method according to claim 13 , wherein the hard metal composition is selected from the group consisting of tungsten claim 13 , silicon claim 13 , chromium claim 13 , vanadium claim 13 , tantalum claim 13 , niobium claim 13 , titanium claim 13 , nickel claim 13 , cobalt claim 13 , iron and combinations thereof.18. (canceled)19. The method according to claim 13 , wherein the core and each sintered element are cemented carbide of the same composition or one or more different compositions.20. The method according to claim 13 , wherein the at least one sintered part is a cemented carbide.21. The method according to claim 13 , further comprising the step providing a vibration dampening medium within the at least one cavity.22. The method according to claim 13 , further comprising forming a plurality of coolant holes in the body.23. The method according to claim 13 , further comprising providing a plurality of cavities in the body claim 13 , the total volume of the plurality of ...

Cutters For ROV Propeller Gear Modification

Cutters for ROV propeller gear modification comprising cut holder, a hob provided on the cut holder and comprising a plurality of continuous linearly arranged hobbings. Each hobbing has a tooth depth of 1.65 cm including a tooth dedendum of 0.975 cm and a tooth addendum of 0.675 cm, a tooth thickness of 0.946 cm, an addendum circle radius of 0.324 cm, a dedendum circle radius of 0.163 cm and a dextrorotatory tooth thread with a lead angle of 1° 7′18″. Each two adjacent teeth have a pitch of 1.885 cm. The hob has a modulus of 0.6, 12 slots, a pressure angle of 20°. A blade groove has a spiral angle of 0° with its spiral direction being a straight flute. A base circle radius of the hob is 0.823 cm and a base circle lead angle is to 20° 1′49″. The modified gear of ROV propeller is obtained by the hob processing. 1. A cutter for ROV propeller gear modification , comprising a cut holder and a hob provided on the cut holder , characterized in that , the hob comprises continuous linearly arranged hobbings , wherein each hobbing has a tooth depth of 1.65 cm in which a tooth dedendum is 0.975 cm and a tooth addendum is 0.675 cm , and has a tooth thickness of 0.946 cm , an addendum circle radius of 0.324 cm , a dedendum circle radius of 0.163 cm , and a dextrorotatory tooth thread with a lead angle of 1° 7′18″ , each two adjacent gear teeth having a tooth pitch of 1.885 cm; andwherein the hob has a modulus of 0.6, 12 slots, a pressure angle of 20°; a blade groove thereof has a spiral angle of 0° with a spiral direction being a straight flute; a base circle radius of the hob is 0.823 cm and a base circle lead angle is 20° 1′49″; the modified gear of ROV propeller is obtained by processing of the hobbings of the hob.2. The cutter according to claim 1 , characterized in that the hub is made of hard alloy and has a heat treatment hardness of HRC63-66; an adjacent pitch difference of chip pocket is 0.016 cm with a chip pocket pitch cumulative error being 0.02 cm claim 1 , a tooth ...

GEAR HOBBING CUTTER WITH NON-CONSTANT WHOLE DEPTHS

A gear hobbing apparatus for producing a gear from a blank according to one example of the present disclosure can include a hob, a first series of hob teeth and a second series of hob teeth. The hob can have a cylindrical hob body. The first series of hob teeth can extend from the cylindrical hob body and have a first whole depth. The second series of hob teeth can alternately extend from the cylindrical hob body with the first series of hob teeth and have a second whole depth. The first and second whole depths are distinct and configured to create a gear from the blank that has adjacent teeth having distinct outer diameters. 1. A gear hobbing apparatus for producing a gear from a blank , the gear hobbing apparatus comprising:a hob having a cylindrical hob body;a first series of hob teeth extending from the cylindrical hob body and having a first whole depth; anda second series of hob teeth alternately extending from the cylindrical hob body with the first series of hob teeth and having a second whole depth;wherein the first and second whole depths are distinct and configured to create a gear from the blank that has adjacent teeth having distinct outer diameters.2. The gear hobbing apparatus of wherein the hob has a single start thread.3. The gear hobbing apparatus of wherein the hob has multiple start threads.4. The gear hobbing apparatus of wherein the hob has a first thread having a first rack profile and a second thread having a second rack profile claim 1 , wherein the first and second threads are distinct.5. The gear hobbing apparatus of wherein the first and second rack profiles are distinct.6. A gear hobbing apparatus for producing a gear from a blank claim 4 , the gear hobbing apparatus comprising:a hob having a cylindrical hob body and a cylindrical axis;a first tooth extending from the cylindrical hob body and having a first diameter measured from the cylindrical axis and providing a first whole depth;a second tooth adjacently extending from the ...

GEAR MANUFACTURING MACHINE

The present disclosure comprises a gear manufacturing machine comprising a workpiece holder and a tool holder, which can each be caused to rotate by means of a drive, wherein the tool holder is arranged on a machining head, which can be moved relative to the workpiece holder by one or a plurality of motion axes of the gear manufacturing machine for gear manufacturing machining a workpiece held in the workpiece holder by means of a tool held in the tool holder, the tool holder having a counterholder. According to the present disclosure the counterholder is movable by a motion axis from its working position to an inactive position and/or is arranged on the machining head of the gear manufacturing machine in a releasably connectable manner. 1. A gear manufacturing machine comprising a workpiece holder and a tool holder , which each are rotatable by a drive , wherein the tool holder is arranged on a machining head , which is movable relative to the workpiece holder by one or a plurality of motion axes of the gear manufacturing machine for gear manufacturing machining a workpiece held in the workpiece holder by a tool held in the tool holder , the tool holder having a counterholder , whereinthe counterholder is movable by a motion axis from its working position to an inactive position and/or is arranged on the machining head of the gear manufacturing machine in a releasably connectable manner.2. The gear manufacturing machine according to claim 1 , wherein the counterholder is arranged in a movable and/or releasably connectable manner on a slide of a linear axis by which it is displaceable relative to the tool holder in an axial direction of the tool holder.3. The gear manufacturing machine according to claim 2 , wherein the counterholder is pivotably arranged on the machining head of the gear manufacturing machine claim 2 , the counterholder being adapted to be folded in or folded away by pivoting from its working position to the inactive position.4. The gear ...

MACHINE TOOL AND GEAR MACHINING METHOD

A machine tool includes a workpiece holder, a tool holder holding working tools that includes a hob cutter used in a rough machining and a skiving cutter used in a finish machining, a tool magazine, a tool replacing device replacing one of the working tools mounted on the tool holder with the other of working tools housed in the tool magazine, a rough machining controlling section performing the rough machining on the workpiece, a tool measuring device measuring a position of a blade in a rotation direction of the skiving cutter, an angle correcting section correcting a rotation angle of the skiving cutter based on a result measured by the tool measuring device, and placing a tooth space formed in the workpiece and an edge tip of the blade in a position corresponding to each other, and a finish machining controlling section by which workpiece is finish machined. 1. A machine tool comprising:a workpiece holder that is configured to rotatably hold a workpiece;a tool holder that is configured to be relatively movable with respect to the workpiece holder while rotatably holding working tools configured to machine the workpiece, the working tools being configured to be attachable to and detachable from the tool holder, and including a hob cutter that is to be used in a rough machining of the workpiece and a skiving cutter that is to be used in a finish machining of the workpiece;a tool magazine that is configured to house the working tools;a tool replacing device that is configured to replace one of the working tools mounted on the tool holder with the other of working tools housed in the tool magazine;a rough machining controlling section that is configured to perform the rough machining on the workpiece by relatively moving the workpiece and the hob cutter while synchronously rotating the workpiece that is held by the workpiece holder and the hob cutter that is mounted on the tool holder;a tool measuring device that is configured to measure a position of a blade in a ...

HOLLOW GEAR HOB

A hob for a cutting apparatus including a hollow body of a sintered hard, metal composition and a cavity located within the body, the cavity having a volume in the range of about 10% to about 90% of the volume of the body. 1. A hollow hob for a cutting apparatus comprising a body of a sintered hard metal composition and at least one cavity located within the body , wherein the cavity has a volume in the range of about 10% to about 90% of the volume of the body.2. The hob according to claim 1 , wherein the hard metal composition is solid cemented carbide.3. The hob according to claim 1 , wherein the hard metal composition is solid tungsten carbide.4. The hob according to claim 1 , wherein the hard metal composition is tungsten carbide bonded with a cobalt alloy binder.5. The hob according to claim 1 , wherein the hard metal composition is selected from the group of tungsten claim 1 , silicon claim 1 , chromium claim 1 , vanadium claim 1 , tantalum claim 1 , niobium claim 1 , titanium claim 1 , nickel claim 1 , cobalt claim 1 , iron and combinations thereof.6. The hob according to claim 1 , wherein the body includes a core having opposed sides and a sintered element fused to each side of the core so as to seal the cavity.7. The hob according to claim 6 , wherein the core and each sintered element are cemented carbide of the same composition or of one or more different compositions.8. The hob according to claim 1 , wherein at least one sintered part is fused to the body.9. The hob according to claim 8 , wherein the at least one sintered part is a cemented carbide.10. The hob according to claim 1 , wherein a vibration dampening medium is disposed with the at least one cavity.11. The hob according to claim 1 , wherein a plurality of cavities are formed in the body.12. The hob according to claim 1 , wherein a plurality of coolant holes are disposed in the body.13. A method of forming a hob of a cutting apparatus comprising the steps of providing a hollow body of a ...

METHOD FOR USING A VARIABLE-TOOTH-THICKNESS WORM-TYPE TOOL TO FABRICATE GEARS WITH LONGITUDINAL CROWNING

A variable-tooth-thickness worm-type tool comprises a main body and a spiral blade distributed on the main body and featuring variable tooth thickness. The main body and the spiral blade are respectively described with a rack cutter coordinate system and a tool coordinate system. The vector parameters based on the rack cutter coordinate system are transformed into vector parameters based on the tool coordinate system so as to simulate the main body with a rack cutter and develop the spiral blade to have variable tooth thickness. Thus, when a gear blank is tooled, the distance between the centers of the tool holder and the workpiece holder can be set as a constant, and the feed in the radial degree-of-freedom can be neglected, with twists of tooth flanks being inhibited. 1. A method for fabricating a gear blank into a gear with a variable-tooth-thickness worm-type tool used to fabricate a gear blank into a gear , said variable-tooth-thickness worm-type tool comprising a main body and at least one spiral blade distributed on said main body and featuring variable tooth thickness , comprising steps:describing said main body with a rack cutter coordinate system;describing said spiral blade distributed on said main body with a tool coordinate system;transforming vector parameters based on said rack cutter coordinate system into vector parameters based on said tool coordinate system so as to simulate said main body with a rack cutter, and developing said spiral blade to have variable tooth thickness; andaccording to a structural characteristic of variable-thickness teeth of said spiral blade, setting feeding amounts of a longitudinal feeding degree-of-freedom, a tangential feeding degree-of-freedom, and an inclined angle degree-of-freedom and neglecting a radial feeding degree-of-freedom for crowning said gear blank and inhibiting twists of tooth flanks of said gear blank.3. The method for fabricating a gear blank into a gear with a variable-tooth-thickness worm-type tool ...

APPARATUS AND METHOD FOR CHAMFERING A WORKPIECE HAVING INTERNAL GEARING

The present disclosure relates to an apparatus for chamfering at least one edge of the gearing at the front side of a workpiece having internal gearing comprising at least one rotatably supported workpiece holder for holding the workpiece and comprising at least one rotatably supported tool holder for holding at least one chamfer hob, possibly a chamfer cut hob, wherein the tool holder is arranged and/or arrangeable next to a workpiece held in the workpiece holder and a chamfer hob held in the tool holder is arrangeable by means of a tool arbor in the region of the center opening of the workpiece formed by the internal gearing to be brought into engagement with an edge of the internal gearing on the upper side and/or on the lower side of the workpiece. 1. An apparatus for chamfering at least one edge of the gearing at the front side of a workpiece having internal gearing comprising at least one rotatably supported workpiece holder for holding the workpiece and comprising at least one rotatably supported tool holder for holding at least one chamfer hob , wherein the tool holder is arranged and/or arrangeable next to a workpiece held in the workpiece holder and a chamfer hob held in the tool holder is arrangeable by a tool arbor in the region of the center opening of the workpiece formed by the internal gearing to be brought into engagement with an edge of the internal gearing on the upper side and/or on the lower side of the workpiece.2. The apparatus of claim 1 , wherein the tool arbor extends on the chamfering of the edge of the gearing on the upper side and/or on the lower side of the workpiece claim 1 , starting from the tool holder claim 1 , past the annular region of the workpiece having internal gearing from an outer region of the workpiece to the inner region of the workpiece.3. The apparatus of claim 1 , wherein the chamfer hob arranged at the tool arbor is accessible from a lower side and/or from an upper side; and/or wherein the tool holder is arranged via ...

METHODS OF MANUFACTURING HYPOID GEARS

A method of manufacturing a hypoid gear includes face hobbing a gear blank and forming a green hypoid gear with gear teeth, heat treating the green hypoid gear to form a heat treated hypoid gear with heat treated gear teeth, and hard hobbing the heat treated gear teeth to form a hard finished hypoid gear. Critical non-tooth features on the heat treated hypoid gear are hard finished. Also, the critical non-tooth features on the heat treated hypoid gear can be hard finished prior to hard hobbing the heat treated gear teeth. The heat treating includes at least one of carburizing and induction hardening the green hypoid gear, a surface of the heat treated gear teeth has a hardness greater than or equal to 58 HRC, and the hard hobbing removes heat distortion from the heat treated gear teeth. 1. A method of manufacturing a hard finished hypoid gear comprising:face hobbing a gear blank and forming a green hypoid gear with green gear teeth;heat treating the green hypoid gear to form a black hypoid gear with black gear teeth; andhard hobbing the black gear teeth to form the hard finished hypoid gear.2. The method according to claim 1 , wherein the heat treating comprises at least one of carburizing and induction hardening the green hypoid gear.3. The method according to claim 2 , wherein a surface of the black gear teeth comprises a hardness greater than or equal to 58 HRc.4. The method according to further comprising hard finishing critical non-tooth features on the black hypoid gear.5. The method according to further comprising hard finishing critical non-tooth features on the black hypoid gear prior to hard hobbing the black gear teeth.6. The method according to further comprising shot peening the black hypoid gear prior to hard hobbing the black gear teeth.7. The method according to further comprising hard finishing critical non-tooth features on the black hypoid gear and shot peening root portions between the black gear teeth prior to hard hobbing the black gear teeth.8 ...

GEAR MACHINING METHOD AND GEAR MACHINING DEVICE

A gear machining method includes: roughing a workpiece while causing a cylindrical hob cutter to rotate in synchronization with a rotation of the workpiece such that a cutting allowance remains; and finishing by cutting off the cutting allowance remaining on the workpiece on which the roughing has been performed during the roughing to form a desired gear shape by feeding a skiving cutter relatively to the workpiece in the rotation axis direction of the workpiece while causing the skiving cutter to rotate in synchronization with the rotation of the workpiece. 1. A gear machining method comprising:roughing a workpiece while causing a cylindrical hob cutter to rotate in synchronization with a rotation of the workpiece such that a cutting allowance remains; andfinishing by cutting off the cutting allowance remaining on the workpiece on which the roughing has been performed during the roughing to form a desired gear shape by feeding a skiving cutter relatively to the workpiece in a rotation axis direction of the workpiece while causing the skiving cutter to rotate in synchronization with the rotation of the workpiece.2. The gear machining method according to claim 1 , whereinthe gear machining method is a method of forming an internal gear that is a helical gear on the workpiece,the hob cutter has multi-thread hob blades that have a helix angle with respect to a plane orthogonal to a rotation axis of the hob cutter, anda helical direction of the hob blades is the same as a helical direction of the helical gear to be formed on the workpiece.3. The gear machining method according to claim 1 , whereinthe gear machining method is a method of forming an internal gear that is a helical gear on the workpiece,the hob cutter has a single-thread hob blade that has a helix angle with respect to a plane orthogonal to a rotation axis of the hob cutter, anda helical direction of the hob blade is opposite to a helical direction of the helical gear to be formed on the workpiece.4. The ...

Hobbing cutter

ЧЕРВЯЧНАЯ ФРЕЗА, зубь , которой выполнены с плоскими передними поверхност ми и боковыми режущими кромками в виде трех пр молинейных участков, имеющих различные профильные углы, о тличающа с   тем, что, с целью повьппени  точности фрезы за счет уменьшени  органической погрешности профилировани , высотные размеры среднего, верхнего и нижнего участков боковых режущих кромок в плоскости передней поверхности соответственно определеЬар 2 ны по зависимости ар 2 г , а их профильные углы - по зависимости t./..otgУcp) f t 2 ft, +---2 3 Ргкеъ ёглев 3 d mo - - --iP-3 з d где индексы пр и лев относ тс  соответственно к правой и левой сторонам зуба (дл  правозаходных фрез; дл  левозаходных нижние знаки относ тс  к правой стороне зуба, а верхние - к левой); Д, |3j , j - углы профил  в плоскости передней поверхности соответственно -на среднем, верхнем и нижнем участках зуба . фре зы; (Л Х - профильный угол исходной рейки фрезы; соответственно средний i mpi о pi (jrp. расчетный диаметр и величины угла подъема винтовой линии фрезы и переднего угла на этом диаметре (величина подставл етс  00 со своим знаком); со о высота головки зуба ар фрезы в плоскости пе редней поверхности; высота ножки зуба фрезы P в плоскости передней поверхности; -i§iDlin&amp;deg;.. tgoc, cos 5„о WARMTH CUTTER, the teeth of which are made with flat front surfaces and lateral cutting edges in the form of three straight lines with different profile angles, which, in order to increase the accuracy of the cutter by reducing the organic error of the profiling, the height dimensions of the average , the upper and lower sections of the lateral cutting edges in the plane of the front surface, respectively, are determined by the dependence of ar 2 g, and their profile angles - by the dependence t./..otg ccp) ft 2 ft, + --- 2 3 Ргкеъггле 3 dm o - - --iP-3 d d where the indexes pr and lion refer respectively to the right and left sides of the tooth (for right milling cutters; for left-handed, the lower signs refer to ...

Hob

一种复合滚刀

本发明为一种复合滚刀，该种刀具切削效率高，阻力小，散热效率高，强度大，寿命长，且在切削加工时容易定位，涉及各种滚刀的刀具头和切削刀齿，刀具头一体地或组合或焊合设置有多个切削刀齿，其特征在于，所述复合滚刀1：在朝向切削方向的切削面内侧凸起的设置阶梯状的复合切削面或复合弧形切削面、复合后切削面，复合侧切削面，并形成有复合切削刃或复合弧形切削刃或复合侧切削刃，与切削刃或弧形切削刃或侧切削刃形成有阶梯状的阶梯刃或分切刃；2在切削刃或弧形切削刃或侧切削刃上设置有凹口刃；3在切削刃或弧形切削刃或侧切削刃或复合切削刃或复合弧形切削刃或复合侧切削刃上设置有凹口刃。

一种小模数可转位刀片磨前滚刀

本发明提供了一种小模数可转位刀片磨前滚刀，属于刀具技术领域。它解决了现有滚刀的刀片磨损后无法更换的问题。本小模数可转位刀片磨前滚刀，包括刀体和围绕于刀体周壁上的若干个基体，刀体上安装有若干个刀片和若干个供相对应刀片安装的刀片槽，刀片一端面为端面A，另一端面为端面B，基体上还设有压紧楔块以及供压紧楔块安装的安装槽，基体一端具有向外凸起的定位凸棱，刀片的端面A上具有供定位凸棱伸入的定位槽。本发明具有刀片拆装方便且整个刀具长寿命、使用效果好的优点。

組立切削工具

(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。

Modular worm-modular mill

FIELD: turning equipment. SUBSTANCE: invention relates to blade cutting tool and can be used in metalworking, woodworking and other industries. Worm-modular mill comprises housing and cutting plates installed in housing. Seats for cutting plates in the housing have mating shape of mounting surface of cutting plates. Cutting plates have cylindrical seating surface, wherein guide of cylindrical mounting surface is an arc. EFFECT: reduced risk of defects during manufacturing of gear wheels by worm-modular cutter. 3 cl, 8 dwg РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 2 708 193 C1 (51) МПК B23C 5/20 (2006.01) B23F 21/16 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ОПИСАНИЕ ИЗОБРЕТЕНИЯ К ПАТЕНТУ (52) СПК B23F 21/16 (2019.02); B23C 5/20 (2019.02) (21)(22) Заявка: 2018141184, 22.11.2018 (24) Дата начала отсчета срока действия патента: Дата регистрации: (73) Патентообладатель(и): Акционерное общество "Свердловский инструментальный завод" (RU) 04.12.2019 (45) Опубликовано: 04.12.2019 Бюл. № 34 2 7 0 8 1 9 3 R U (54) Сборная червячно-модульная фреза (57) Реферат: Изобретение относится к лезвийному режущему инструменту и может быть использовано в металлообработке, деревообработке и других отраслях Сборная червячно-модульная фреза содержит корпус и режущие пластины, установленные в корпус. Посадочные места для режущих пластин в корпусе имеют ответную форму посадочной Стр.: 1 поверхности режущих пластин. Режущие пластины имеют цилиндрическую посадочную поверхность, при этом направляющая цилиндрической посадочной поверхности представляет собой дугу. Снижается риск возникновения брака при изготовлении зубчатых колес сборной червячно-модульной фрезой. 2 з.п. ф-лы, 8 ил. C 1 C 1 Адрес для переписки: 620100, Свердловская обл., г. Екатеринбург, тракт Сибирский, 8, корп. В, а/я 963, ООО "Царская привилегия", Левкину А.Ю. (56) Список документов, цитированных в отчете о поиске: US 7537419 B2, 26.05.2009. RU 2128103 C1, 27.03.1999. RU 2660427 C2, 06.07.2018. 2 7 0 8 1 9 ...

Hob

Hob cutter

ЧЕРВЯЧНАЯ ФРЕЗА дл  обработки зубчатых колес, профиль которой в осевом сечении выполнен бочкообразным , отличающа с  тем, что, с целью расширени  технологических . возможностей, путем нарезани  торцового колеса цилиндроконической передачи с торцовым колесом, профиль представл ют собой пр мобочиую рейку, срезанную по дуге окружности с радиусом, равным рассто нию от оси вращени  цилиндрического колеса до плоскости впадин торцового колеса . (Л 4 О5 4 СП WORM MILLING for machining gears, whose profile in axial section is barrel-shaped, characterized in that, in order to expand the technological. possibilities, by cutting the face wheel of a cylindrical conical gear with an end wheel, the profile is a flat rail cut along a circular arc with a radius equal to the distance from the axis of rotation of the cylindrical wheel to the plane of the depressions of the end wheel. (L 4 O5 4 SP

Method of generating gear article with face cams

Multistart worm cutter

FIELD: processing of materials by cutting. SUBSTANCE: invention can be used for milling heavy loaded high-speed worm gear wheels. Multi-start worm cutter is designed for operation on gear-hobbing machines with tangential feed and comprises serially arranged sections of rough teeth, finishing teeth and calibrating teeth made with milled necks. Calibrating teeth are located with angle of inclination of helical line to axis of cutter to 45° and are provided with a lowered occipital part at 0.5–0.6 mm on each side relative to the calibrating tooth thickness on the entire length of the tooth with an occlusion angle of 8–10°. Said angle makes formation of profile ribbon at distance of 1.2–1.5 mm from front plane of tooth. EFFECT: longer service life of cutter due to possibility of multiple resection on front surface without loss of accuracy. 1 cl, 4 dwg РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 2 739 050 C1 (51) МПК B23F 21/16 (2006.01) B23F 5/22 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ОПИСАНИЕ ИЗОБРЕТЕНИЯ К ПАТЕНТУ (52) СПК B23F 21/16 (2020.08); B23F 5/22 (2020.08) (21)(22) Заявка: 2019129362, 17.09.2019 (24) Дата начала отсчета срока действия патента: (73) Патентообладатель(и): Зорин Василий Александрович (RU) Дата регистрации: 21.12.2020 Приоритет(ы): (22) Дата подачи заявки: 17.09.2019 (45) Опубликовано: 21.12.2020 Бюл. № 36 2 7 3 9 0 5 0 R U (54) МНОГОЗАХОДНАЯ ЧЕРВЯЧНАЯ ФРЕЗА (57) Реферат: Изобретение относится к обработке материалов резанием и может быть использовано для фрезерования тяжелонагруженных быстроходных червячных колес. Многозаходная червячная фреза предназначена для работы на зубофрезерных станках с тангенциальной подачей и содержит последовательно расположенные участки черновых зубьев, чистовых зубьев и калибрующих зубьев, выполненных с фрезерованными затылками. Калибрующие зубья расположены с углом наклона винтовой линии к Стр.: 1 оси фрезы до 45° и выполнены с заниженной затылочной частью на 0,5-0,6 мм с каждой стороны ...

Hobbing cutter sharpening tool

本申请涉及滚刀磨削的技术领域，公开了一种滚刀刃磨工装，其包括用于安装刀具的连接机构和用于对连接机构进行定位的装夹机构、和用于限制连接机构转动的定位机构，所述连接机构与装夹机构固定连接，所述定位机构位于连接机构下方。本申请具有滚刀装夹后调节方便的效果。

Method of making end-toothed crown

СПОСОБ ИЗГОТОВЗЩНШ ТОРЦО-, ВОГО ЗУБЧАТОГО ВЕНЦА с боковыми поверхност кш зубьев, пересекающимис  ,по лини м впадин, при котором инструменту сообщают вращение вокруг его оси, отличаю щи и с   тем, что, с целью повышени  произ-. води тельности, ось инструмента устанавливают перпендикул рно плоскости , проход5и11ей через две линии впад н , и сообщают ему дополнительное перемещение так, что точка его режущей кромки, профилирующа  боковую поверхность зубьев, описывает поверхность кругового цилиндра, котора  карательна к боковым поверхj ност м зубьев по ее образующим, а основание кругового цилиндра совпадает ., с плоскостью, проход щей через две линии впадин. THE METHOD FOR MANUFACTURING THE MALE, VOGO OF THE TEETH OF THE VENTS with the side surfaces of the teeth, intersecting along the lines of the cavities, in which the tool is informed about the rotation around its axis, which is different in order to increase the production. the axis of the tool is set perpendicular to the plane, passing through two lines, and tells it to move further so that the point of its cutting edge, which forms the side surface of the teeth, describes the surface of the circular cylinder, which is punitive to the side surfaces of the teeth on its side. forming, and the base of the circular cylinder coincides with the plane passing through two lines of cavities.

A milling cutter tool for chip removing machining, as well as a cutting body and a basic body therefor

本发明涉及一种适用于滚削的铣削刀具，在一方面，其包括具有几何中心轴线(C1)的基体(1)，所述基体(1)能够围绕所述几何中心轴线(C1)旋转，并且，在另一方面，其包括多个可更换的切削体(2)，每一个所述切削体包括沿着切削体的侧面以均匀间隔(P)定位的一组齿(17)。在基体的槽(8)中形成的、用于各个切削体的支撑表面(9)相对于所述基体的所述中心轴线以至少0.5°的负轴向角度倾斜，从而沿着一公共假想螺旋线(X)定位所述切削体(2)的所述齿(17)，所述螺旋线(X)与所述基体的所述中心轴线同心并且具有与在齿之间的间隔一致的均匀螺距(P)。本发明还涉及用于该铣削刀具的切削体和基体。

Hobbing tool for finishing gears

내용 없음.

Prefabricated worm cutter with group cutting circuitry

FIELD: machine building.SUBSTANCE: invention relates to mechanical engineering and can be used in the construction of metal-cutting tools for milling parts. Prefabricated worm cutter comprises body and carbide inserts installed in it. Milling cutter housing consists of separate disks assembled on the bushing, and along the body edges there are two cylindrical spacers. Assembly body of the milling cutter forms a helical surface on which radial and tangential grooves are made, in which radially the main and lateral tangentially located hard-alloy cutting plates are installed. Said discs are secured by four tightening pins. Sleeve is equipped with longitudinal splines congruent with slots of disks. Cutting plates are of ellipsoidal shape.EFFECT: result is higher durability and reliability of prefabricated worm cutter.1 cl, 5 dwg РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 2 720 011 C1 (51) МПК B23F 21/16 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ОПИСАНИЕ ИЗОБРЕТЕНИЯ К ПАТЕНТУ (52) СПК B23F 21/16 (2019.08) (21)(22) Заявка: 2019115502, 21.05.2019 (24) Дата начала отсчета срока действия патента: Дата регистрации: 23.04.2020 (45) Опубликовано: 23.04.2020 Бюл. № 12 (54) Сборная червячная фреза с групповой схемой резания (57) Реферат: Изобретение относится к машиностроению и радиальные и тангенциальные пазы, в которых может быть использовано в конструкциях установлены радиально основные и боковые металлорежущих инструментов для фрезерования тангенциально расположенные твердосплавные деталей. Сборная червячная фреза содержит режущие пластины. Упомянутые диски корпус и установленные в нем твердосплавные закреплены четырьмя стяжными шпильками. режущие пластины. Корпус фрезы состоит из Втулка снабжена продольными шлицами, отдельных дисков, собранных на втулке, а по конгруэнтными с пазами дисков. Режущие краям корпуса установлены две цилиндрические пластины выполнены эллипсоидной формы. В проставки. Корпус фрезы в сборе образует результате обеспечивается ...

Method for processing cylindrical helical gear by hobbing on bevel gear milling machine

本发明提供一种在锥齿轮铣齿机上滚车圆柱斜齿轮的加工方法，本发明采用端面齿轮作为滚车刀具，刀具直径比传统滚刀、车齿刀具大，不易磨损，且刀具刃磨较传统圆柱车齿刀更为方便；且在加工时刀具与工件为连续滚动，能一次完成多个齿的加工，切削效率高；同时，切削运动简单，切削时，只需要四轴联动，即可在锥齿轮铣齿机上就能实现圆柱斜齿轮的加工，适应性强，扩大锥齿轮铣齿机的加工范围；而且，本发明采用滚车的方式来加工圆柱齿轮且刀具及机床刚性较好，加工精度和效率易于保证。

Hob arbor

내용 없음. No content.

Method for milling skew end gears

Применение: способ целесообразно использовать дл  изготовлени  торцовых зубьев на кулачковых муфтах, установочных и сцепных, храповиках, режущем инструменте , фрезах, зенкерах, развертках. Существо изобретени : нарезание торцовых зубьев производ т цилиндрическими фрезами с угловыми зубь ми с симметричным и несимметричным профил ми, которые располагают так, что плоскость режущих кромок , остаетс  посто нно касательной к поверхности нарезаемого зуба. Фрезе .сообщают вращение вокруг его оси,св занное с непрерывным вращением колеса вокруг своей оси (движение делени ми пр молинейное возвратно-поступательное движение в направлении торда колеса со скоростью, согласованной с вращением колеса . При этом пр мой ход к торцу колеса .производ т до совмещени  медиан профил  фрезы и впадины между зубь ми колеса, а обратный - до совмещени  медиан профил  фрезы и зуба колеса. 4 ил. (Л С

Lathe for manufacturing spherical hob for gear shaping

Gang worm milling cutter

High-precision grinding process of small-modulus rolling slotting tool

本发明涉及滚插刀制造技术领域，具体涉及一种小模数滚插刀的高精度磨削工艺，包括磨削设备选择、砂轮选择、砂轮修正、工件安装、磨削路径规划、磨削编程和齿形型线点磨；所述齿形型线点磨包括第一磨削路径规划和第二磨削路径规划；第一磨削路径规划中，设置齿形面的若干径向磨削型线，相邻径向磨削型线间隔一定的型线轴向间距，磨削时点磨砂轮沿着小模数滚插刀齿形面的径向磨削型线先左后右由前向后逐一推进磨削；第二磨削路径规划中，设置齿形面的若干轴向磨削型线，相邻轴向磨削型线间隔一定的型线径向间距，磨削时点磨砂轮沿着小模数滚插刀齿形面的轴向磨削型线先齿顶后齿底逐一推进磨削。本发明实现了小模数滚插刀的高精度加工。

Composite worm cutter

FIELD: machine building.SUBSTANCE: invention relates to mechanical engineering and can be used in the construction of metal-cutting tools for milling parts. Milling cutter comprises a body and carbide cutting inserts mounted therein. Body is made in the form of separate disks assembled on a sleeve with a keyway, fixed from rotation by means of a prismatic key and tightened with five studs and nuts with the formation of a helical surface with a lifting angle, equal to the ratio of the pitch of the adjacent teeth of the cutter, measured on the same sides of the teeth along the long diameter of the cutter, to the number of cutting plates. Discs are made with tangential grooves with supporting surfaces for mounting the main and lateral carbide inserts in them, openings for the location of the sleeve with a keyway and five through holes for the studs, and on the edges of the housing there are two cylindrical spacers.EFFECT: it is possible to replace one or several discs in case of breakage, the cutter's efficiency increases.1 cl, 5 dwg РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 2 680 122 C1 (51) МПК B23F 21/16 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ОПИСАНИЕ ИЗОБРЕТЕНИЯ К ПАТЕНТУ (52) СПК B23F 21/16 (2018.08) (21)(22) Заявка: 2017146947, 28.12.2017 (24) Дата начала отсчета срока действия патента: Дата регистрации: Приоритет(ы): (22) Дата подачи заявки: 28.12.2017 (45) Опубликовано: 15.02.2019 Бюл. № 5 2 6 8 0 1 2 2 R U (54) Сборная червячная фреза (57) Реферат: Изобретение относится к машиностроению и может быть использовано в конструкциях металлорежущих инструментов для фрезерования деталей. Фреза содержит корпус и установленные в нем твердосплавные режущие пластины. Корпус выполнен в виде отдельных дисков, собранных на втулке со шпоночным пазом, зафиксированных от проворота посредством призматической шпонки и стянутых пятью шпильками с гайками с образованием винтовой поверхности с углом подъема, равным отношению шага рядом стоящих зубьев ...

Hobbing cutter

ЧЕРВЯЧНАЯ ФРЕЗА, передние поверхности соседних зубьев которой образуют зубчатую рейку, а часть зубьев выполнена с утолщением головки , отличающа с  тем, что, с целью расширени  ее технологических возможностей, профиль по крайней мере одного среднего зуба рейки вьшолнен пр мрлинейным, зубь , расположенные по сторонам от него, выполнены с утолщением головки от оси симметрии зуба- в сторону, противоположную месторасположению зуба относительно среднего, причем пор дковый номер зуба, начина  с которого выполнено утолщение, определ етс  из соотношени  &amp;deg;l Vct|o6u , где i - пор дковый номер зуба, начина  с которого вьшолнено утолщение головки; и - модуль обрабатываемого колеса , мм; X - коэффициент смещени  исход (Л ного контура; Zfl- число стружечных канавок с фрезы; оСц - профильный угол; Ьц- рассто ние от средней пр мой 5 рейки до начала утолщени  головки, мм. WARMER CUTTER, the front surfaces of the adjacent teeth of which form a rack rail, and part of the teeth is made with a thickening of the head, characterized in that, in order to expand its technological capabilities, the profile of at least one middle tooth of the slats is straight, along the sides from it, are made with a thickening of the head from the axis of symmetry of the tooth, in the direction opposite to the location of the tooth relative to the middle one, and the sequence number of the tooth, starting from which the thickening was performed, determines c from the ratio of &amp; l Vct | o6u, where i is the serial number of the tooth, starting with which the head is thickened; and - the module of the wheel, mm; X is the coefficient of displacement of the outcome (Line Circuit; Zfl is the number of chip grooves from the milling cutter; OsC is the profile angle; Hc is the distance from the middle straight 5 slats to the beginning of the head thickening, mm.

Hob exclusively used in waveform rough machining

Hob

Worm screw cutting tool for hobbing machine

본 발명은 호빙머신용 웜나사 가공 툴에 관한 것으로, 보다 상세하게는, 웜기어, 특히 웜나사의 비틀림 각도, 즉 리드값에 상관없이 호빙머신을 이용해 다양한 웜나사의 절삭 가공이 가능하며, 호빙머신 공구대의 구조 변경이나 교체 없이 리드값이 큰 특수사양의 웜나사를 정확하게 나선가공할 수 있도록, 상기 공구대에 고정하여 설치되는 장착부재; 및 상기 장착부재에 결합되는 연결부, 상기 연결부의 일면에 직각으로 결합되는 브래킷, 상기 브래킷의 후면에 결합되는 것으로 상기 브래킷을 관통하는 회전축을 구비한 모터, 상기 회전축에 결합되어 회전하며 외측면에 웜나사 가공용 커터를 구비한 회전체로 이루어진 가공부재;를 포함하는 호빙머신용 웜나사 가공 툴에 관한 것이다. The present invention relates to a worm screw processing tool for a hobbing machine, More specifically, it is possible to cut various worm screws using a hobbing machine regardless of the twist angle of the worm gear, especially the worm screw, that is, the lead value, A mounting member fixed to the tool holder so as to allow the worm screw to be accurately spirally machined; And a motor coupled to the mounting member, a bracket coupled to one surface of the connecting portion at a right angle, a motor coupled to a rear surface of the bracket, the motor having a rotation shaft passing through the bracket, And a working member made of a rotating body having a cutter for threading.

Built-up hyperboloid worm gear-cutting tool, replaceable rotary disposable cutting plates to equip thereof and method of their operation

FIELD: machine engineering. SUBSTANCE: built-up hyperboloid gear-cutting tool has a body and a cutting portion made of insertable gear racks inserted in grooves made on this body along the normal to the lifting angle of the main worm screw line on its initial cylinder diameter, and rotary quick-changeable cutting plates fixed on these racks and provided with profile corresponding to the profile of the rack gears. At that, to simplify the tool structure, each cutting plate is secured on the rack by means of a screw inserted from its rear side in an opening and an opening in the cutting plate, and from the front surface it is provided with a screwed nut. At that, the lower part of the plate profile is inserted by placing its lateral sides into the screw grooves corresponding to its profile and configured on the body the between comb gears, or various kinds of pins installed on the rack. The body is made hyperboloid with screw grooves or cylindrical without screw grooves or with screw grooves. EFFECT: increased accuracy of gear wheel treatment by reduced cutting. 22 cl, 29 dwg РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 2 634 565 C2 (51) МПК B23F 21/16 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ОПИСАНИЕ ИЗОБРЕТЕНИЯ К ПАТЕНТУ (21)(22) Заявка: 2014133209, 12.08.2014 (24) Дата начала отсчета срока действия патента: 12.08.2014 (72) Автор(ы): Настасенко Валентин Алексеевич (UA) (73) Патентообладатель(и): Настасенко Валентин Алексеевич (UA) Дата регистрации: (56) Список документов, цитированных в отчете о поиске: RU 2147496 C1, 20.04.2000. SU Приоритет(ы): (22) Дата подачи заявки: 12.08.2014 1689000 A1, 07.11.1991. RU 2147495 C1, 20.04.2000. EP 2487001 A2, 15.08.2012. R U 31.10.2017 (43) Дата публикации заявки: 27.02.2016 Бюл. № 6 2 6 3 4 5 6 5 R U (54) СБОРНЫЙ ГИПЕРБОЛОИДНЫЙ ЧЕРВЯЧНЫЙ ЗУБОРЕЗНЫЙ ИНСТРУМЕНТ, СМЕННЫЕ ПОВОРОТНЫЕ НЕПЕРЕТАЧИВАЕМЫЕ РЕЖУЩИЕ ПЛАСТИНЫ ДЛЯ ЕГО ОСНАЩЕНИЯ И СПОСОБ ИХ ЭКСПЛУАТАЦИИ (57) Реферат: Сборный гиперболоидный червячный в ...

Non-formed hob cutter and method of producing same

Изобретение относитс  к металлообработке и касаетс  нарезани  мелкомодульных зубчатых колес. Цель изобретени  - упрощение изготовлени  и повышение точности фрез за счет выполнени  боковых сторон черв чной фрезы в виде непрерывных винтовых поверхностей и за счет уменьшени  числа относительных движений. Боковые поверхности зубьев 1 черв чной фрезы мост ми: arctgCP Q-i-foR rmoL. arctg(P« Z o /iido) ; Zo 7 10 -(OL ВЫПОЛНЯЮТ в виде винтовых поверхностей многозаходных черв ков. Число заходов, угол подъема витков и число стружечных канавок определены зависиZfoR/«do ), -Z, -- + 2 , гдеу.и „,,- углы подъема винтовых задних поверхностей соответственно дл  правой и левой сторон профил  зубьев; о (/д и г с/. - задние боковые углы соответственно на правой R и левой L сторонах профил  зубьев; - осевой шаг фрезыJ d - делительный диаметр фрезыJ Z - число стружечных канавок фрезыj Z ij - заданное число заходов фрезы; Z рд и Z - число заходов винтовых задних поверхностей соответственно дл  правой и левой сторон профил  зубьев. Левую 2 и правую 3 боковые стороны профил  вьтолн ют инструментом второго пор дка при его винтовых непрерывных движени х с различными направлени ми и с различными величинами осевых шагов. 2 с.п, ф-лы, 4 ил. с S (Л со О) о (О to 4

MILLER AND HOUSING

1. Фреза (1), выполненная с возможностью зубофрезерования заготовки (30), имеющей цилиндрические зубья, такой как зубчатое колесо или ему подобное, или имеющей зубчатые рейки, содержащаякорпус (3), имеющий периферийную поверхность (7) и два противоположных конца (4, 6), между которыми продолжается центральная ось (С1) вращения, при этом корпус (3) выполнен с возможностью вращения в заданном направлении (R1) вращения вокруг центральной оси (С1) вращения,множество разнесенных режущих зубьев (8), выступающих от периферийной поверхности, каждый из которых включает режущую кромку (11) и стружечную поверхность (12),причем группа упомянутых режущих зубьев (8а-8h) переднего конца расположена вдоль участка переднего конца воображаемой винтовой линии, концентричной центральной оси (С1) вращения, а группа упомянутых режущих зубьев (8i) заднего конца расположена вдоль смежного участка заднего конца упомянутой винтовой линии, при этом режущие зубья (8) расположены с возможностью последовательного взаимодействия с заготовкой вдоль винтовой линии, начиная с первого зуба (8а) группы переднего конца,причем группа режущих зубьев (8i) заднего конца включает по меньшей мере три смежных вдоль винтовой линии режущих зуба (8i), расположенных вдоль винтовой линии с постоянным первым радиальным расстоянием (r1) от центральной оси (С1) вращения,отличающаяся тем, чтогруппа режущих зубьев (8а-8h) переднего конца включает по меньшей мере два смежных вдоль винтовой лини режущих зуба (8а-8h), расположенных вдоль винтовой линии с непостоянным вторым радиальным расстоянием (r2) от центральной оси (С1) вращения, причем второе радиальное расстояние (r2) меньше, чем первое радиальное расстояние (r1), и увеличивается постепенно от зуба РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (51) МПК B23C 3/00 (13) 2015 116 857 A (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ЗАЯВКА НА ИЗОБРЕТЕНИЕ (21)(22) Заявка: 2015116857, 30.04.2015 (71) Заявитель(и): САНДВИК ИНТЕЛЛЕКЧУАЛ ПРОПЕРТИ АБ (SE) Приоритет(ы ...

Gear cutting head

FIELD: metal working, namely designs of teeth working tools with round cutters used for making cone gear wheels with circular teeth. SUBSTANCE: head includes housing with round cutters mounted in radial openings of housing by means of cutter holders. Position of cutting edge of each round cutter is determined by means of radial adjustment mechanism having wedge stop mounted coaxially relative to housing and being in the form of annular truncated cone; and worm gearing. Each cutter holder is in the form of worm gear wheel whose teeth are arranged on its outer cylindrical surface. Worm has central opening for placing screw clamp for rigid fixation of worm in housing. EFFECT: enhanced accuracy and quality of gear cutting due to increased rigidity of tool in the result of elimination of backlashes at fixing gearing in housing of head. 2 dwg 1$ 0СсС ПЧ сэ РОССИЙСКОЕ АГЕНТСТВО ПО ПАТЕНТАМ И ТОВАРНЫМ ЗНАКАМ (19) (51) МПК” ВИ” 2 203 784. 13) С2 В 23Е 21/00 12) ОПИСАНИЕ ИЗОБРЕТЕНИЯ К ПАТЕНТУ РОССИЙСКОЙ ФЕДЕРАЦИИ (21), (22) Заявка: 2001109120/02, 05.04.2001 (24) Дата начала действия патента: 05.04.2001 (43) Дата публикации заявки: 20.01.2003 (46) Дата публикации: 10.05.2003 (56) Ссылки: ЗИ 1255320 А1, 07.09.1986. ЗИ 395194, 02.01.1974. $Ч 823023, 25.04.1981. ЗИ 986680, 07.01.1983. ОЕ 19624685 СЛ, 20.02.1997. (98) Адрес для переписки: 413100, Саратовская обл., г. Энгельс, пл. Свободы, 17, ТИ СГТУ, директору академику В.М.Седелкину (71) Заявитель: Технологический институт Саратовского государственного технического университета (72) Изобретатель: Барац Я.И., Барац Ф.Я. (73) Патентообладатель: Барац Яков Ильич, Барац Фридрих Яковлевич (54) ЗУБОРЕЗНАЯ ГОЛОВКА (57) Изобретение относится к области металлообработки, К конструкции зубообрабатывающих инструментов С круглыми резцами, используемых для изготовления конических зубчатых колес с круговыми зубьями. Головка содержит корпус с установленными в его радиальных отверстиях посредством резцедержателей круглыми резцами, положение ...

Multistart hob

Hobbing and hobbing method for variable-tooth-thickness involute helical gear and hobbing cutter design method

本发明提供了一种变齿厚渐开线斜齿圆柱齿轮滚切加工及滚刀设计方法，包括使变齿厚渐开线斜齿圆柱齿轮滚刀、变导程变齿厚媒介齿条、变齿厚渐开线斜齿圆柱齿轮三者两两之间形成等价共轭关系；计算得出变导程变齿厚媒介齿条的齿面方程；计算得出变齿厚渐开线斜齿圆柱齿轮滚刀的齿面方程；通过计算出的变齿厚渐开线斜齿圆柱齿轮滚刀的齿面方程，制造出变齿厚渐开线斜齿圆柱齿轮滚刀；利用变齿厚渐开线斜齿圆柱齿轮滚刀完成整个变齿厚渐开线斜齿圆柱齿轮的滚切加工，本发明能够完成相同模数相同压力角不同螺旋角的变齿厚渐开线斜齿圆柱齿轮的快速滚切加工，其对应齿轮滚刀设计简单制造方便，为变齿厚渐开线斜齿圆柱齿轮的批量化生产提供基础。

Barrel-shaped threaded tool for machining internally toothed gear

A barrel-shaped threaded tool for machining an internally toothed gear, the tool being capable of highly precise machining by appropriate setting of a torsion angle.  A threaded grindstone (11) is formed into a barrel shape such that the diameter of the grindstone (11) becomes gradually smaller from the axial intermediate portion to both axial ends of the grindstone (11) so that the grindstone (11) engages with a workpiece (W) at a given axis angle (Σ) during machining of the workpiece (W).  The torsion angle of the grindstone (11) is set according to the length from the axial intermediate portion.

Archimedes worm gear hob design method, cutter grinding correction method and worm gear master machine configuration method

本发明公开了一种阿基米德蜗轮滚刀设计方法，包括如下步骤：1)获取阿基米德蜗轮的实际齿面与理论齿面之间的误差ε ij ；2)根据误差ε ij 修正阿基米德滚刀的节圆半径增量d r ，而后修正阿基米德滚刀的直径增量Δ os ，进一步修正阿基米德滚刀的实际节圆直径D ph 和实际顶圆直径D oh ，并根据修正后的D ph 修正节圆导程角λ ph 。本发明还公开了一种蜗轮母机的配置方法，以及在阿基米德滚刀刃磨后的阿基米德蜗轮滚刀刃磨修正方法和在阿基米德滚刀刃磨后的滚刀刃磨后的蜗轮母机配置方法。通过在蜗轮滚刀设计中通过结合阿基米德涡轮的设计理论误差和蜗轮母机的安装误差，能够有效提高加工得到的蜗轮的精度。

Profile cutter

Improvement brought to hobs for cutting gears

Improvements in milling cutters for cutting bevel gears with helical and straight teeth

Multiple-part hobbing cutter

ABSTRACT A gear hob includes a body comprising at least one disc-shaped body segment. A helix of successive teeth extends around the body and is formed by the peri-phery of the body, each tooth having a leading face, a top and two flanks, and having a seat cut into the lead-ing face and extending along one of the flanks at the top, first cutter plates replaceably mounted at the top of respective tooth flanks for cutting both with a top-cutting edge and a single side-cutting edge. The first cutter plates comprise interchangeable hard metal reversi-ble plates having straight edges and being mounted in respective seats in the tooth flanks, each plate having a broad face and a narrow face, the narrow face serving as leading face defining the top-cutting and side-cutting edges. In a preffered embodiment, second metal cutter plates are replaceably mounted at a radial distance inward-ly from the top of respective opposing tooth flanks for cutting with a side-cutting edge only, the first and second cutter plates alternate along the helix from left-hand to right-hand tooth flanks and have overlapping cutt-ing paths as to their side-cutting edges.

Gear Size Improvements

Method of cutting turbine wheel teeth - uses cutters inclined W.R.T. axes of wheels to form undercuts

The method embodies alternate cutting and indexing phases, the resulting teeth (2, 4) being tapered in the radial sense (i.e. viewed in an axially parallel wheel section) with the greater depth towards the wheel axis (10) and having curved axially parallel faces. A surfacing type cutter (22, 24) is utilized, rotating autonomously to effect the cut, before and indexing relatively opposed rotation of the workpiece wheel and the cutter about the wheel axis is effected; the cutter having curved cutting edges and operating on an axis (30) inclined to the wheel axis (10). Pref. two cutters (22, 24) with mating faces (2, 4) in tandem cut a spherically convex face on the one work piece tooth (2) face and a spherically concave face on the other (4).

Improvements made to taps, rolls, squarers and other similar tools

Cutter

MULTIPLED MOLDING

Hob

(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。

Hobbing cutter

Mother hob and its embodiment

Built up milling cutter

Profile cutter

A rotary cutting tool for forming fluted rotors and the like comprising a cylindrical body having a plurality of metallic carbide cutting blades which are detachably mounted on the circumference of the body. The blades are arranged along a helical line with respect to the axis of rotation of the cutter body. The blades may be circumferentially spaced apart equidistant, one blade from each adjacent blade, to form only one turn of the helix and whereby each blade may be easily ground to a precise cutting edge contour while mounted on the cutter body. The cutting edge contour of each blade may be such that each blade cuts portions along the entire profile of the form produced on the workpiece.

Improved method of and apparatus for producing clutches and the like

594,492. Claw, ratchet, and slip clutches. GLEASON WORKS. May 28, 1945, No. 13363. Convention date, April 3, 1944. [Class 80(ii)] [Also in Groups XXII and XXIII] In saw - tooth clutches and face ratchets with helical surfaces on one side of the teeth, and load-releasing clutches with helical surfaces on both sides of the teeth, the teeth are relieved at the ends and tops so that the engaging surfaces of the two members have less than full length tooth contact and less than full profile contact. The amount of relief may differ between the members of engaging pairs to produce the desirable amount of mis-match.

Barrel-shaped worm-like tool

Single position hob

Published without abstract.

Hob construction

A novel hob construction includes a plurality of blades and a cylindrical main body having opposite axial ends. Flanges including axially aligned slots for receiving the blades are located only upon the ends of the main body. A chocking material is provided over the circumferential extent of the main body and between the blades for forming an effective physical extension of the body for bonding the blades to the body and to each other.

REWINDING MILL, CONSISTS OF MULTIPLE PARTS.

Hob grinding machine

Barrel worm-shaped tool

提供一种桶状蜗杆形工具，所述桶状蜗杆形工具能够以高精度进行齿轮加工，这通过减小工作负载和抵消磨损实现。所述桶状蜗杆形工具是一种桶状蜗杆形砂轮(12)，其被形成为从其轴向两个端部到其轴向中部，其直径逐渐增大，从而其被用于内齿轮的齿轮加工。砂轮(12)的齿形(31)被形成为：根据内齿轮(11)的加工余量，从轴向中部到轴向两个端部，齿形(31)逐渐变小。

Hobbing cutter

ЧЕРВЯЧНАЯ ФРЕЗА, профиль зубьев которой соответствует профилю винтовой нарезки производ щего черв ка, а передние поверхности обраг зованы разнонаправленными стружеч . ными канавками, отличающа с  тем, что, с целью повьшени  качества обрабатываемой поверхности зубьев нарезаемого колеса, зубь  фрезы расположены таким образом, что их передние поверхности повернуты вокруг касательной, проведенной к боковой режущей кромке зуба фрезы в точке , принадлежащей делительному цилиндру производ щего черв ка. сл A WORM OF A CUTTER, the tooth profile of which corresponds to the screw-cutting profile of the producing screw, and the front surfaces are arranged in multidirectional chip. grooves, characterized in that, in order to increase the quality of the machined surface of the teeth of the wheel being cut, the cutter teeth are arranged in such a way that their front surfaces are rotated around a tangent to the side cutting edge of the cutter tooth at the point belonging to the worm-producing dividing cylinder . cl

Grinding machine

Grinding machine for the relief-grinding, in particular, of hobs, having a lower housing capable of travelling vertically on a column, a tiltable upper housing arranged above the lower housing and having a grinding spindle mounted on it, a tilting joint spaced from the grinding spindle and consisting of at least one leaf-spring element fixed to the upper housing and the lower housing, and an actuating drive acting between the upper housing and the lower housing.

Apparatus for grinding blades.

Hob grinding machine

DEVICE FOR MACHINING SEVERAL WORKPIECES WITH A DRIVEN TOOL

BALL-SHAPED HOLLOW MILL FOR THE PRODUCTION OF GEAR WHEELS

Improvements in or relating to machines for grinding hobs

594,824. Grinding hobs. MICHIGAN TOOL CO. Nov. 16, 1944, No. 22712. Convention date, Nov. 26, 1943. [Class 60] Apparatus for side relieving the teeth of hobs comprises a rotatable main table adapted to rotate about an axis perpendicular to the axis of rotation of a rotatable hob support and in synchronism therewith, and a grinding tool positioned to engage the side of the hob teeth mounted on a second table for rotary movement therewith, the second table being mounted on the main table for rotation therewith and driven thereby through the intervention of a driving connection adapted to retard and advance the rotative movement of the second table relative to the main table for effecting the relief on the teeth. The driving connection preferably comprises a resiliently-urged member on one of the tables and a shiftable cam member mounted on the other table and engageable with the resilient member, the shiftable cam member being adapted to be shifted independently of means for rotating the hob support and the main table in synchronism. The invention is described with reference to grinding side relief on the teeth of hobs of the enveloping type, that is, hobs designed for use in cutting the worm-wheel or worm gears of gear sets embodying the Hindley or globoidal principle. Fig. 9 illustrates such a hob, of the type disclosed in Specification 362,448, [Group XXII], and having several threads. Each tooth has a cutting edge 20, and relief is provided on the side 22 of each tooth by a machine as illustrated in Fig. 1. The hob 10 is mounted horizontally between a headstock and adjustable, by hand wheel, horizontally on the machine frame 24. The grinding tool comprises a small cylindrical pencil grinding element 36 carried, by slides permitting adjustment vertically and in two horizontal directions at right angles, on an auxiliary table 30 mounted on a table 26 rotatable about a vertical axis. The grinding element is belt-driven by a motor 56 pivotally mounted on the end of a ...

Hob

Water cooling type cutting machine hobbing cutter group

本发明提供了水冷式切削机滚刀组，包括若干通过转轴2相连的干滚刀1，其特征在于：所述的转轴2中间开有水槽3，若干滚刀1的水槽3处通过环形水管串联，所述的环形水管内设有循环泵。所述的环形水管外部连接有空气热管或部分浸入冷凝水池。利用循环水同时对若干滚刀同时进行冷却，循环水在环形水管中流动时带走滚刀上的热量，传递到空气中，比传统直接通过气冷的方式冷却效果更好，延长了滚刀的工作寿命。

Combination roughing and finishing hob

Automatic machine tool

Patent DE144652C

Cutting tool for planing gear tooth flanks

Two cutting tool inserts are fastened at each side of a cutting tool insert holder to have their active primary cutting edges aligned. A third cutting tool insert is displaced in relation to the other two cutting tool inserts in the cutting direction such that its active primary cutting edge overlaps in extent the active primary cutting edges of the two aligned cutting tool inserts. This produces an effective total length of the cutting edges which corresponds to the sum of the edge lengths of the three cutting tool inserts less the two overlapping regions. Should one of the cutting tool inserts chip or break off in the region of the overlapping active primary cutting edges, the planing or shaping of hardened gear tooth flanks of a roughed-out gear blank or workpiece can nevertheless be continued since such chipping of the cutting edge has no detrimental influence on the workpiece due to the overlapping.

Method of making helical cutters

Improvements in machines for cutting, relieving or reliefgrinding hobs

236,376. Brown & Sons (Huddersfield), Ltd., D., Sykes, A., and Kitchen, H. E. July ,7, 1924. Backing-off lathes.-The machine described in Specification 27694/12, [Class 60, Grinding or abrading &c.], is modified to enable it to cut circumferential relief on gear cutting hobs by the provision of means to move a lathe tool gradually towards the work and quichly away therefrom a determined number of times corresponding to the number of gashes in the hob during each rotation thereof. The tool is adjustably mounted nn a head 3, which is angularly adjustable by slots 3<4>. The head 3 is slidable on ways b<1> on a slide b towards or from the work by means of an adjustable block 3<2> depending from the head engaging a slot c<2> in a lever c pivoted to the slide at b<2>. The cam d engages a cut-away block c<1> so that, as it rotates, the head receives a gradual movement towards the work until the nose of the cam engages the, cut-away part, whereupon a spring imparts a quick return to starting position, the shock beisig absorbed by a dash-pot device c<6>. A worm 37 rotates the work and is carried by a sleeve 38 driven from a shaft 38<3> from the change-speed shaft. The lead, screw for traversing is driven from sleeve 38 through gearing 45, 46, 48. 50, 52, shaft 53. change gears, shaft 55, and gear 56, as described in Specification 27694/12, [Class 60, Grinding or abrading &c.], The cam d is driven from the gear 46 through gear g, suitable change gears, shaft h, gearing h<1>, i, k, shaft 1, gearing n, o' and shaft o<2>, which latter drives the shaft of cam d. Between the shaft and gear n is a clutch formed by a sleeve m on the shaft urged by a spring o against the boss n<1> of the gear n. The engagement lasts while the gear n is free to be driven, but if the gear is held against rotation, the sleeve m rides over the boss n<1>. Thus. for each revolution of the work, the lever c will move the ...

Patent DE1070901B

Cutters for ROV propeller gear modification

Disclosed is a tool for machining a modified gear of an ROV thruster, comprising a tool head and a hob provided on the tool head. The hob comprises a plurality of continuously and linearly arranged hob teeth. The height of any of the hob teeth is 1.65 cm, in which the dedendum is 0.975 cm and the addendum is 0.675 cm. The thickness of any of the hob teeth is 0.946 cm; the radius of an addendum circle is 0.324 cm; the radius of a dedendum circle is 0.163 cm; the tooth lead angle is 1°7'18", and the winding is right hand winding. The distance between every two adjacent hob teeth is 1.885 cm. For the hob, the modulus is 0.6, the number of spaces is 12, and the pressure angle is 20°. The helix angle of blade grooves is 0°, and the blade grooves are straight grooves on the aspect of the winding direction. The radius of a base circle is 0.823 cm, and the lead angle of the base circle is 20°1'49". The modified gear of the ROV thruster is machined by the hob teeth of the hob.

Assembled hob

(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。

Tooth system for shafts, gears, coupling parts, hubs or the like

The invention relates to a method of producing a tooth system for shafts, gears, coupling parts, hubs or the like with teeth projecting to the outside or inside in a radial direction. In this method, the tooth edges and end edges are chamfered to form guide surfaces by means of a helical milling cutter in a revolving tooth system. According to the invention, helical tooth milling cutters which have a smaller module and/or a larger angle of action than the tool with which the actual tooth system has been produced are used to mill the guide surfaces.

Hob with inserted cutter bars

Tool for producing crown wheels, and method for producing such a tool

A tool for producing crown wheels by means of a generating process comprises a disc which is rotatable about its axis, with machining elements which are provided on the periphery thereof and the cutting edges of which lie in the outer surface of a profile determining the shape of the teeth of a crown wheel to be produced with the tool, said profile extending essentially helically over the periphery of the disc. In each cross-section of the helical profile the outer contour (25) of the cross-section is at least composed of a part of the outer contour of the tooth profile of an imaginary gear wheel (23) with involute teeth and preferably straight lines connecting thereto, in such a way that in the case of each of the teeth (22) with a tooth tip and two tooth flanks bounded by the outer contour (25) of the cross-section the distance between each of the two tooth flanks and a line at right angles to the axis of rotation of the tool and passing through the tooth tip remains the same or increases from the tooth tip to the axis of rotation of the tool.

Cutter

A cutter for forming a spiral groove on a work is provided. The cutter comprises a cylindrical body provided on the outer periphery thereof with a plurality of cutting edges arranged circumferentially at equal intervals and displaced axially by a predetermined pitch. Further, each of the cutting edges is provided with a pair of additional cutting edges adjacent thereto and displaced circumferentially on both sides, respectively, so that when the work and the cutter are rotated in the same direction, a high-precision spiral groove is formed on the work. A screw-shaft machined by the cutter according to the present invention is effectively used for a carriage transfer unit of a still video floppy disk drive, allowing accurate adjustment of the portion of the carriage and accurate transfer of the carriage with respect to the disk to be performed in a simple manner and at low cost.

Milling cutter has hard metal annular tool body fxed to steelbasic body with equidistantly distributed protuberances engaging with inner wall of tool body

An annular tool body (12) made of hard metal is fixed to the steel basic body (18) which has equidistantly spaced protuberances around the periphery inside the tool body . The protuberances engage with the inner wall of the tool body. The bar-shaped protuberances are elastically resilient when the basic body is exposed to thermal expansion.

Hobbing tool for finishing gears

A hobbing tool made of cermet composed of 70 to 97 percent by weight of hard phase and a binder phase. The hard phase is made of a composite carbonitride of transition metals including titanium and tungsten, and at least one other element. The binder phase contains nickel and/or cobalt and inevitable impurities. The ratio between nitride atoms and carbon atoms and the ratio between titanium atoms and the atoms of transition metals other than titanium in the hard phase should be within specific ranges. The cermet having the above composition has an increased toughness and an excellent resistance to heat and wear and is difficult to weld.

Tool shaping tooth surface

(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。

Patent JPS5944166B2

Art of grinding hobs

MULTI-PARTS DEVELOPING STRAWBERRY

L'invention concerne une fraise développante en plusieurs parties. La fraise développante de l'invention est constituée de plusieurs disques 1, 2, 3 ayant des surfaces frontales parallèles et comportant des couronnes dentées hélicoïdales 1a, 2a, 3a correspondant au pas de la fraise. Ces couronnes dentées 1a, 2a, 3a sont garnies de plaques réversibles en métal dur 10, 11, interchangeables, posées de champ et faisant office de tranchants latéraux et de tête. Ces plaques sont disposées dans l'ordre successif des dents en coupant à droite et à gauche de telle sorte que les bords coupant latéralement se superposent lors de la rotation de la fraise. La fraise développante de l'invention est utilisée pour tailler de gros engrenages allant à peu près jusqu'au module 40. The invention relates to a multi-part involute cutter. The developing milling cutter of the invention consists of several discs 1, 2, 3 having parallel front surfaces and comprising helical toothed rings 1a, 2a, 3a corresponding to the pitch of the milling cutter. These toothed rings 1a, 2a, 3a are fitted with reversible hard metal plates 10, 11, interchangeable, placed in the field and acting as side cutting edges and head. These plates are arranged in the successive order of the teeth, cutting to the right and to the left so that the laterally cutting edges overlap during the rotation of the cutter. The involute cutter of the invention is used to cut large gears up to approximately modulus 40.

Helical cutter.

Improvement to hob cutters for the size of helical cylindrical gears

Modular worm-modular mill

Изобретение относится к машиностроению и может быть использовано в конструкциях сборного металлорежущего инструмента. Червячно-модульная фреза содержит корпус, на наружной цилиндрической поверхности которой выполнена винтовая канавка, в которой установлены своими винтовыми выступами кассеты. Кассеты крепятся к корпусу посредством болтов. Режущие пластинки имеют отверстия и закреплены винтами в пазах, выполненных по обеим сторонам кассет. Обеспечивается точность фрезы не ниже точности цельных фрез из быстрорежущей стали, повышается производительность обработки, скорость резания, снижается шероховатость обработанной поверхности. 2 з.п. ф-лы, 2 ил.

Hob cutter