CN223313127U

CN223313127U - Angle-adjustable gear hobbing machine and gear

Info

Publication number: CN223313127U
Application number: CN202422652902.5U
Authority: CN
Inventors: 卢锡钦; 薛为仁
Original assignee: Zhejiang Mingzhou Auto Parts Co ltd
Current assignee: Zhejiang Mingzhou Auto Parts Co ltd
Priority date: 2024-10-31
Filing date: 2024-10-31
Publication date: 2025-09-09
Anticipated expiration: 2034-10-31

Abstract

The utility model discloses a gear hobbing machine for angle adjustment type gear machining, which comprises a base, wherein an adjusting guide rail is fixedly arranged on one side of the top of the base, a limiting sliding groove is formed in the outer side of the adjusting guide rail, an adjusting sliding block is slidably arranged in the limiting sliding groove, uniformly distributed positioning holes are formed in one side of the adjusting guide rail, a fixing rod is fixedly connected to one side of the adjusting sliding block, and a first positioning pin is inserted into one of the positioning holes.

Description

Gear hobbing machine for angle adjustment type gear machining and gear

Technical Field

The utility model relates to the technical field of gear machining, in particular to a gear hobbing machine for angle-adjusting gear machining and a gear.

Background

The working mode of the gear hobbing machine is to adopt a rod-shaped or cylindrical gear hobbing cutter to extrude and shape the surface of a workpiece, so that the processing parameter requirements of a product can be met to the greatest extent, the production process is simplified, the traditional gear hobbing machine is used for tightly attaching the product to a hob in working and hobbing the surface of the product under the extrusion of a static hob, so that the static hob is difficult to movably adjust, the processing angle of the surface insection of a gear product is limited, that is, when the currently used gear hobbing machine is used for straight tooth processing, the processing of the helical teeth cannot be carried out any more, because the working angle of the hob cannot be adjusted, the product is fixed and can only be moved at a basic linear position, the practical working range of the gear hobbing machine is limited, corresponding equipment is also required to be purchased in order to meet the processing of the helical teeth, and the cost input is improved.

The present utility model has been made in view of the above problems.

Disclosure of Invention

The utility model provides a gear hobbing machine for angle adjusting gear machining and a gear, which solve the problems in the use process in the prior art.

The technical scheme is that the gear hobbing machine for angle adjustment type gear machining comprises a base, wherein an adjusting guide rail is fixedly arranged on one side of the top of the base, a limiting sliding groove is formed in the outer side of the adjusting guide rail, an adjusting sliding block is slidably arranged in the limiting sliding groove, uniformly distributed positioning holes are formed in one side of the adjusting guide rail, a fixing rod is fixedly connected to one side of the adjusting sliding block, a first positioning pin is inserted into one side of one positioning hole, one end of the first positioning pin is inserted into the fixing rod, an adjusting arm is detachably arranged at one end of the fixing rod away from the adjusting sliding block, and a clamp is fixedly arranged at one end of the adjusting arm.

The gear hobbing machine for angle adjusting gear machining, disclosed by the utility model, further comprises an adjusting arm, wherein the adjusting arm comprises an adjusting plate fixedly connected to the clamp holder, and a plurality of adjusting holes are formed in one side of the adjusting plate.

The gear hobbing machine for angle adjusting gear machining, disclosed by the utility model, is further characterized in that an adjusting rod is inserted into one of the adjusting holes, and one end of the adjusting rod penetrates through the fixing rod to penetrate to the outer side of the adjusting sliding block.

The gear hobbing machine for angle adjusting gear machining, disclosed by the utility model, is further characterized in that the first locking nut and the second locking nut are arranged on the surface threads of the adjusting rod, and the first locking nut and the second locking nut are respectively positioned on two sides of the adjusting plate.

The gear hobbing machine for angle adjustment gear machining is characterized in that a fixing frame is fixedly arranged on one side of the base, a bidirectional threaded rod is rotatably arranged on the inner side of the fixing frame, sliding blocks sliding in the fixing frame are arranged on two sides of the surface of the bidirectional threaded rod in a threaded mode, a mounting frame is fixedly arranged on the top of each sliding block, a stepping motor is fixedly arranged on one side of each mounting frame, and an output shaft of each stepping motor penetrates through the inside of each mounting frame and is fixedly provided with a hob.

The gear hobbing machine for angle adjustment gear machining, disclosed by the utility model, is further characterized in that one end of the surface of the bidirectional threaded rod is fixedly connected with a fixed circular plate positioned on the outer side of the fixed frame, the outer side of the fixed circular plate is provided with a frame fixedly connected to one side of the fixed frame, one side of the frame is provided with a second positioning pin in a penetrating way, one end of the second positioning pin is inserted into the fixed circular plate, and the surface of the fixed circular plate is provided with a plurality of insertion holes matched with the second positioning pin.

The gear is characterized in that a cylindrical gear is clamped in the clamp holder, the surface of the cylindrical gear is provided with helical teeth in a hobbing mode, and one end of the surface of the cylindrical gear is provided with straight teeth in a hobbing mode.

In summary, the beneficial effects of the utility model are as follows:

1. According to the utility model, the structural design capable of adjusting the orientation angle of the workpiece is adopted, the workpiece can be subjected to angle adjustment according to the processing requirement, so that an included angle is formed between the workpiece and the hob, the helical teeth can be processed on the workpiece under the condition that the hob is statically fixed, a user can flexibly select straight tooth processing or helical tooth processing on the machine according to the processing requirement, the multi-purpose machine is realized, the processing efficiency of the workpiece is improved, and convenience is provided for the work and use of the user.

2. According to the utility model, through the arrangement of the adjusting plates and the adjusting holes, the plurality of adjusting holes are formed in the adjusting plates, the adjusting plates are also used for adjusting the processing positions of the workpieces, the positions of the adjusting plates are moved according to whether the workpieces are aligned and matched with the two hob or not, so that the processing positions of the workpieces are adjusted, during adjustment, the second locking nut is only required to be unscrewed and taken down, then the adjusting rod is inserted into the adjusting hole at the corresponding position, the position of the clamp holder is also moved along with adjustment, the position of the workpiece clamped in the clamp holder is also adjusted, and after adjustment, the second locking nut is installed on the adjusting rod and the adjusting plate is locked and fixed, so that convenience is brought to the work and the use of a user.

3. According to the utility model, through the arrangement of the adjusting rod, the first locking nut and the second locking nut, the adjusting rod can be used for adjusting the hobbing depth of the workpiece, the adjusting rod moves inwards to adjust, the more the workpiece stretches into the machine, the less the workpiece stretches into the machine, the first locking nut and the second locking nut are used for locking and fixing the adjusted adjusting rod, the processing requirements of workpieces with different sizes are met, and convenience is provided for the working and use of users.

4. According to the utility model, through the arrangement of the fixing frame, the bidirectional threaded rod, the sliding blocks, the mounting frame, the rolling cutters and the stepping motor, threads on two sides of the surface of the bidirectional threaded rod are arranged in opposite directions, so that when a user rotates the bidirectional threaded rod to work, the two sliding blocks on the bidirectional threaded rod move oppositely and simultaneously, otherwise, the two sliding blocks move relatively, the rolling cutters also move relatively, so that the expansion and the reduction of the distance between the two rolling cutters are realized, the actual working requirements are met, the user rotates the bidirectional threaded rod according to the size of a workpiece, the bidirectional threaded rod drives the two sliding blocks to move correspondingly, the sliding blocks slide in the fixing frame simultaneously, the fixing frame can play a limiting role on the movement of the sliding blocks, the sliding blocks can drive the mounting frame to move, then the rolling cutters and the stepping motor arranged on the mounting frame move, the workpiece can move between the two rolling cutters and drive the stepping motor to work, and the rolling cutters to rotate simultaneously, and the two rolling cutters are rotated oppositely or relatively, and under the action of the two rolling cutters, the rolling teeth on the surface of the workpiece are machined into helical teeth or straight teeth, and the working distance between the two rolling cutters can be adjusted conveniently and simultaneously according to the size of the workpiece.

5. According to the utility model, through the arrangement of the fixed circular plate, the frame, the positioning pin II and the jacks, the fixed circular plate is fixed on the bidirectional threaded rod, and the plurality of jacks are further formed on the fixed circular plate and used for inserting the positioning pin II, so that after a user rotates the bidirectional threaded rod to adjust the distance between the two hob cutters, the positioning pin II can pass through one side of the frame and be inserted into the corresponding jack on the fixed circular plate, thereby realizing the positioning of the bidirectional threaded rod, positioning the hob cutters at the position, improving the stability of the hob cutters during work, and providing convenience for the user in work and use.

6. The gear hobbing machine is used for processing the helical gear and the straight gear through the surface gear hobbing of the cylindrical gear, and is formed by adopting the gear hobbing machine in the scheme, and the gear hobbing machine can simultaneously meet the requirements of OE (element) on products after processing, meanwhile, the production process is simplified, and convenience is provided for working and use of users.

Drawings

In order to more clearly illustrate the embodiments of the utility model or the technical solutions of the prior art, the drawings which are used in the description of the embodiments or the prior art will be briefly described, it being obvious that the drawings in the description below are only some embodiments of the utility model, and that other drawings can be obtained according to these drawings without inventive faculty for a person skilled in the art.

FIG. 1 is a schematic diagram of the overall structure of the present utility model;

FIG. 2 is a schematic view of a partial perspective structure of the present utility model;

FIG. 3 is a perspective view of the mounting rod in a three-dimensional configuration;

Fig. 4 is a partially exploded perspective view of the present utility model.

In the figure, 1, a base, 2, an adjusting guide rail, 3, a limiting chute, 4, an adjusting slide block, 5, a first positioning pin, 6, a positioning hole, 7, a fixed rod, 8, an adjusting plate, 9, a clamp holder, 10, an adjusting rod, 11, a first locking nut, 12, a second locking nut, 13, an adjusting hole, 14, a fixed frame, 15, a bidirectional threaded rod, 16, a slide block, 17, a mounting frame, 18, a hob, 19, a stepping motor, 20, a fixed circular plate, 21, a frame, 22, a second positioning pin, 23 and a cylindrical gear.

Detailed Description

The technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to fig. 1 to 4 of the embodiments of the present utility model, and it is obvious that the described embodiments are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Examples

The utility model provides a gear hobbing machine is used in angle modulation formula gear processing, includes base 1, one side fixed mounting at base 1 top has regulation guide rail 2, spacing spout 3 has been seted up in the outside of regulation guide rail 2, the inside slidable mounting of spacing spout 3 has regulation slider 4, evenly distributed's locating hole 6 has been seted up to one side of regulation guide rail 2, one side fixedly connected with dead lever 7 of regulation slider 4, and the inside grafting of one of them locating hole 6 has locating pin one 5, the inside of dead lever 7 is inserted to the one end of locating pin one 5, the one end demountable installation that regulation slider 4 was kept away from to the dead lever 7 has the regulating arm, and the one end fixed mounting of regulating arm has holder 9.

The specific use process is as follows: the working mode of the gear hobbing machine is to adopt a rod-shaped or cylindrical gear hobbing cutter to extrude and shape the surface of a workpiece, so that the processing parameter requirement of a product can be met to the greatest extent, the production flow is simplified, cutting waste is not generated, the processing efficiency of the product is improved, the cleaning step is omitted, convenience is provided for the working of a user, when the workpiece is processed, the workpiece is clamped and fixed in the clamp holder 9, then whether the workpiece is aligned and matched with two hob 18 is checked, if the workpiece is not aligned and matched with the two hob 18, the adjustment plate 8 can be adjusted, specifically, a plurality of adjustment holes 13 are formed on the adjustment plate 8, the adjustment plate 8 is also used for adjusting the processing position of the workpiece, the position of the adjustment plate 8 is moved according to whether the workpiece is aligned and matched with the two hob 18, so as to adjust the processing position of the workpiece, the second lock nut 12 is unscrewed and removed, the adjusting rod 10 is inserted into the adjusting hole 13 at the corresponding position, so that the position of the clamp holder 9 can be adjusted along with the adjustment movement, the position of the workpiece clamped in the clamp holder 9 can be adjusted, the second lock nut 12 is mounted on the adjusting rod 10 and the adjusting plate 8 is locked and fixed after the adjustment is finished, convenience is provided for the working and use of a user, and the user can also meet the requirement by adjusting the adjusting rod 10 if errors exist in the contact between the workpiece and the hob 18 during the moving and processing of the workpiece, specifically, the adjusting rod 10 can be used for adjusting the hobbing depth of the workpiece, the adjusting rod 10 moves inwards to adjust, the more parts of the workpiece extend into the machine, otherwise, the less the first lock nut 11 and the second lock nut 12 are used for locking and fixing the adjusted adjusting rod 10, the processing requirements of workpieces with different sizes are met, convenience is brought to the working of a user, then the workpiece can be made to approach the hob 18 to carry out hobbing processing through moving the adjusting guide rail 2, straight teeth are processed at the moment, if helical teeth are required to be processed, the user is required to pull out the first locating pin 5 from the current locating hole 6, meanwhile, the first locating pin 5 can be moved out of the fixed rod 7, then the user can move the adjusting slide block 4 to slide in the limiting slide groove 3, an included angle is formed between the workpiece and the hob 18 according to the moving track of the adjusting slide block 4, and then the workpiece is inclined with the hob 18, so that helical teeth are processed, and the fact that the workpiece is not enough in height of the hob 18 when the inclination angle is adjusted is required to be explained, in the case of being unable to adapt to the workpiece, the height of the fixing frame 14 may be raised, or the fixing frame 14 may be designed to be a lifting structure, so that the hob 18 and the workpiece may be always adapted, the specific structure is the prior art, which is not described in too much, according to the set bevel gear parameters, the adjusting slide 4 moves to a corresponding angle in the limiting chute 3, and then the first positioning pin 5 is inserted into the positioning hole 6 at a corresponding position, and the first positioning pin 5 is also clamped onto the fixing rod 7 at a corresponding position, where it is noted that, for convenience, the user may lift the adjusting rod 10 to move the adjusting slide 4, where all structures directly or indirectly mounted on the adjusting slide 4 follow the movement, such as the fixing rod 7, an adjusting plate 8, a clamp holder 9, an adjusting rod 10, The lock nut I11 and the lock nut II 12, etc., so that the gear hobbing machine can process straight teeth and helical teeth, meet the processing requirements of various gears, realize the multipurpose purpose of the gear hobbing machine, improve the actual use performance of the gear hobbing machine, improve the market competitiveness of the gear hobbing machine, provide convenience for users to work, wherein the threads on two sides of the surface of the bidirectional threaded rod 15 are arranged in opposite directions, when the users rotate the bidirectional threaded rod 15 to work, two sliding blocks 16 on the bidirectional threaded rod 15 move towards opposite directions at the same time, otherwise, the two sliding blocks 16 move relatively at the same time, the hob 18 also moves along, thereby realizing the expansion and contraction of the distance between the two hob 18, meeting the actual working requirements, and the users according to the size of workpieces, the bidirectional threaded rod 15 is rotated, the bidirectional threaded rod 15 drives the two sliding blocks 16 to correspondingly move, the sliding blocks 16 slide in the fixing frame 14 at the same time, so that the fixing frame 14 can play a limiting role in the movement of the sliding blocks 16, the sliding blocks 16 can drive the mounting frame 17 to move, then the hob 18 and the stepping motor 19 mounted on the mounting frame 17 can also follow the movement, then a workpiece can move between the two hob 18, the stepping motor 19 is started to work and drive the hob 18 to rotate at the same time, the two hob 18 rotate back or relatively, helical teeth or straight teeth are machined on the surface of the workpiece by the action of the two hob 18, convenience is brought to the working use of a user, and meanwhile, the machining distance between the two hob 18 can be adjusted according to the size of the workpiece.

Therefore, by adopting the structural design capable of adjusting the orientation angle of the workpiece, the workpiece can be subjected to angle adjustment according to the processing requirement, so that an included angle is formed between the workpiece and the hob, the helical teeth can be processed on the workpiece under the condition that the hob is statically fixed, a user can flexibly select straight tooth processing or helical tooth processing on the machine according to the processing requirement, the machine is multipurpose, the processing efficiency of the workpiece is improved, and convenience is provided for the work and use of the user.

The adjusting arm comprises an adjusting plate 8 fixedly connected to a clamp 9, and a plurality of adjusting holes 13 are formed in one side of the adjusting plate 8.

Specifically, the setting of regulating plate 8 and regulation hole 13, a plurality of regulation holes 13 have all been seted up on regulating plate 8, regulating plate 8 is also used for adjusting the processing position of work piece, according to whether the work piece aligns with two hobbing cutter 18 and matches, remove the position of regulating plate 8, thereby adjust the processing position of work piece, during the adjustment, only need unscrew lock nut two 12 take off, then adjust pole 10 insert in the regulation hole 13 of corresponding position, so the position of holder 9 also can follow the regulation and remove, the work piece position of centre gripping in holder 9 also can obtain the adjustment, after the regulation is accomplished again with lock nut two 12 install adjust pole 10 and with regulating plate 8 locking fixed can, it is convenient to provide user's work use.

An adjusting rod 10 is inserted into one of the adjusting holes 13, and one end of the adjusting rod 10 penetrates through the fixing rod 7 to the outer side of the adjusting slide block 4.

The surface threads of the adjusting rod 10 are provided with a first locking nut 11 and a second locking nut 12, and the first locking nut 11 and the second locking nut 12 are respectively positioned on two sides of the adjusting plate 8.

Specifically, the setting of adjusting pole 10, lock nut one 11 and lock nut two 12, adjust pole 10 can be used for adjusting the gear hobbing degree of work piece, adjusts pole 10 inwards to remove, and the work piece stretches into the inside part of machine more, on the contrary the less, lock nut one 11 and lock nut two 12 then are used for carrying out locking fixed with adjusting pole 10 that adjusts, satisfy the processing demand of different size work pieces, and it is convenient to provide for user's work use.

One side fixed mounting of base 1 has mount 14, the inboard of mount 14 rotates installs two-way threaded rod 15, the both sides on two-way threaded rod 15 surface are all threaded to be installed and are slided slider 16 in mount 14, the top fixed mounting of slider 16 has mounting bracket 17, one side fixed mounting of mounting bracket 17 has step motor 19, step motor 19's output shaft runs through to the inside of mounting bracket 17 and fixed mounting has hobbing cutter 18.

Specifically, the fixing frame 14, the bidirectional threaded rod 15, the sliding blocks 16, the mounting frame 17, the hob 18 and the stepping motor 19 are arranged, threads on two sides of the surface of the bidirectional threaded rod 15 are arranged in opposite directions, so when a user rotates the bidirectional threaded rod 15 to work, the two sliding blocks 16 on the bidirectional threaded rod 15 can move towards opposite directions simultaneously, otherwise, the two sliding blocks 16 can move relatively simultaneously, the hob 18 can also follow the movement, thereby realizing the expansion and the reduction of the distance between the two hob 18, meeting the actual working requirements, the user rotates the bidirectional threaded rod 15 according to the size of a workpiece, the bidirectional threaded rod 15 drives the two sliding blocks 16 to move correspondingly, the slide block 16 slides in the fixing frame 14 at the same time, so that the fixing frame 14 can play a limiting role on the movement of the slide block 16, the slide block 16 can drive the mounting frame 17 to move, then the hob 18 and the stepping motor 19 mounted on the mounting frame 17 can also move along, then a workpiece can move between the two hob 18, meanwhile, the stepping motor 19 is started to work and drive the hob 18 to rotate, the two hob 18 rotate back or rotate relatively, helical teeth or straight teeth are machined on the surface of the workpiece by the action of the two hob 18 in a hobbing mode, convenience is provided for the working and use of a user, and meanwhile, the machining distance between the two hob 18 can be adjusted according to the size of the workpiece.

One end fixedly connected with that is located the fixed plectane 20 in the mount 14 outside of bi-directional threaded rod 15 surface, the outside of fixed plectane 20 is provided with the frame 21 of fixed connection in mount 14 one side, one side of frame 21 runs through and is provided with locating pin two 22, the inside of fixed plectane 20 is inserted to one end of locating pin two 22, a plurality of jacks with locating pin two 22 looks adaptation have been seted up to the surface of fixed plectane 20.

Specifically, the fixed circular plate 20, the frame 21, the positioning pin two 22 and the jack are arranged, the fixed circular plate 20 is fixed on the bidirectional threaded rod 15, and a plurality of jacks are further formed in the fixed circular plate 20 and used for inserting the positioning pin two 22, so that after the user rotates the bidirectional threaded rod 15 to adjust the distance between the two hob 18, the positioning pin two 22 can penetrate through one side of the frame 21 and be inserted into the corresponding jack in the fixed circular plate 20, positioning of the bidirectional threaded rod 15 is achieved, the hob 18 is also positioned at the position, stability of the hob 18 during operation is improved, and convenience is provided for the user to use.

The gear is characterized in that a cylindrical gear 23 is clamped in the clamp 9, the surface of the cylindrical gear 23 is provided with helical teeth in a hobbing mode, and one end of the surface of the cylindrical gear 23 is provided with straight teeth in a hobbing mode.

Specifically, the surface gear hobbing of cylindrical gear is processed to have helical teeth and straight teeth to the gear hobbing machine in this scheme of adoption is processed and is formed, and this gear hobbing machine can satisfy helical teeth processing and straight teeth processing simultaneously, makes the product after processing accord with OE's requirement, simplifies the flow of production simultaneously, and it is convenient to provide for user's work use.

It should be noted that, the functions to be realized by each hardware in the present utility model are supported by a large number of mature technologies, which belongs to the prior art, and the essence of the present utility model is to optimally combine the existing hardware and the connection mode thereof for specific application occasions, so as to meet the adaptation requirements of the specific application occasions and solve the problems (not related to the improvement of the internal software of the hardware) presented in the background art.

The foregoing description of the preferred embodiments of the utility model is not intended to be limiting, but rather is intended to cover all modifications, equivalents, alternatives, and improvements that fall within the spirit and scope of the utility model.

Claims

1. The gear hobbing machine for angle adjustment type gear machining comprises a base (1) and is characterized in that an adjusting guide rail (2) is fixedly arranged on one side of the top of the base (1), a limiting sliding groove (3) is formed in the outer side of the adjusting guide rail (2), an adjusting sliding block (4) is slidably arranged in the limiting sliding groove (3), uniformly distributed positioning holes (6) are formed in one side of the adjusting guide rail (2), a fixing rod (7) is fixedly connected to one side of the adjusting sliding block (4), a first locating pin (5) is inserted into one side of the positioning hole (6), one end of the first locating pin (5) is inserted into the fixing rod (7), an adjusting arm is detachably arranged at one end of the fixing rod (7) away from the adjusting sliding block (4), and a clamp holder (9) is fixedly arranged at one end of the adjusting arm.

2. The gear hobbing machine for angle-adjusting gear processing according to claim 1, wherein the adjusting arm comprises an adjusting plate (8) fixedly connected to the clamp holder (9), and a plurality of adjusting holes (13) are formed in one side of the adjusting plate (8).

3. The gear hobbing machine for angle adjustment gear machining according to claim 2, wherein an adjusting rod (10) is inserted into one of the adjusting holes (13), and one end of the adjusting rod (10) penetrates through the fixing rod (7) to penetrate to the outer side of the adjusting sliding block (4).

4. The gear hobbing machine for angle-adjusting gear machining according to claim 3, wherein the first lock nut (11) and the second lock nut (12) are installed on the surface of the adjusting rod (10) in a threaded manner, and the first lock nut (11) and the second lock nut (12) are respectively located on two sides of the adjusting plate (8).

5. The gear hobbing machine for angle adjustment type gear machining according to claim 4, wherein a fixing frame (14) is fixedly installed on one side of the base (1), a bidirectional threaded rod (15) is rotatably installed on the inner side of the fixing frame (14), sliding blocks (16) sliding in the fixing frame (14) are installed on two sides of the surface of the bidirectional threaded rod (15) in a threaded mode, an installation frame (17) is fixedly installed on the top of each sliding block (16), a stepping motor (19) is fixedly installed on one side of each installation frame (17), and an output shaft of each stepping motor (19) penetrates through the inside of each installation frame (17) and is fixedly provided with a hob (18).

6. The gear hobbing machine for angle adjustment gear machining according to claim 5, wherein one end of the surface of the bidirectional threaded rod (15) is fixedly connected with a fixed circular plate (20) positioned on the outer side of the fixed frame (14), a frame (21) fixedly connected to one side of the fixed frame (14) is arranged on the outer side of the fixed circular plate (20), a locating pin II (22) is arranged on one side of the frame (21) in a penetrating mode, one end of the locating pin II (22) is inserted into the fixed circular plate (20), and a plurality of jacks matched with the locating pin II (22) are formed in the surface of the fixed circular plate (20).

7. A gear machined by adopting the gear hobbing machine for machining an angle-adjusting gear according to any one of claims 1 to 6 is characterized in that a cylindrical gear (23) is clamped in the clamp holder (9), the surface of the cylindrical gear (23) is hobbing, inclined teeth are machined, and one end of the surface of the cylindrical gear (23) is hobbing, and straight teeth are machined.