A gear hobbing machine

Abstract

The present invention discloses a gear hobbing machine, comprising a base, a feed mechanism, a swing mechanism, a tool clamping mechanism and a workpiece clamping mechanism, wherein the feed mechanism is mounted on the base, the swing mechanism is mounted on the feed mechanism and is rotatably connected to the feed mechanism, the tool clamping mechanism is fixedly mounted on the swing mechanism, the swing mechanism can drive the tool clamping mechanism to deflect, the tool clamping mechanism is used to clamp a hob and can drive the hob to rotate, the feed mechanism can drive the hob to perform a feeding action, the workpiece clamping mechanism is fixedly mounted on the base, the workpiece clamping mechanism is used to clamp a workpiece to be processed and can drive the workpiece to be processed to rotate, and the position and rotation speed of the hob are matched with the position and rotation speed of the workpiece to be processed. The present invention can improve gear processing accuracy, improve processing efficiency, reduce processing costs, and process multiple types of gears.

Description

Technical Field

[0001] The invention relates to the technical field of gear processing, in particular to a gear hobbing machine. Background Art

[0002] Gear hobbing is the gear-generating method. During the processing, the cutting tool and the workpiece make relative generating motion, and the instantaneous center lines of the tool and the workpiece roll against each other purely, and a certain speed ratio is maintained between the two. The obtained processing surface is the envelope surface of the blade in this motion. The generating method is a common method for gear processing, and it can process all kinds of gears. Gears are important parts commonly used in machine parts. The quality of gears plays a vital role in the performance of the machine. However, there are widespread problems of low processing accuracy, low processing efficiency, and high processing cost. In addition, usually a gear hobbing machine can only be used to process one type of gear. Therefore, it is urgent to research and develop a gear hobbing machine that can improve gear processing accuracy, improve processing efficiency, reduce processing costs, and process multiple types of gears. Summary of the invention

[0003] The purpose of the present invention is to provide a gear hobbing machine that can improve gear machining accuracy, improve machining efficiency, reduce machining costs and process multiple types of gears, so as to solve the problems existing in the above-mentioned prior art.

[0004] To achieve the above object, the present invention provides the following solutions:

[0005] The present invention provides a gear hobbing machine, comprising a base, a feed mechanism, a swing mechanism, a tool clamping mechanism and a workpiece clamping mechanism, wherein the feed mechanism is installed on the base, the swing mechanism is installed on the feed mechanism and is rotatably connected to the feed mechanism, the tool clamping mechanism is fixedly installed on the swing mechanism, the swing mechanism can drive the tool clamping mechanism to deflect, the tool clamping mechanism is used to clamp a hob and can drive the hob to rotate, the feed mechanism can drive the hob to perform a feeding action, the workpiece clamping mechanism is fixedly installed on the base, the workpiece clamping mechanism is used to clamp a workpiece to be processed and can drive the workpiece to be processed to rotate, and the position and rotation speed of the hob match the position and rotation speed of the workpiece to be processed.

[0006] Preferably, the feed mechanism includes a depth component and a feed component, the depth component is fixedly mounted on the base, the feed component is mounted on the depth component, the swing angle mechanism is mounted on the feed component and is rotatably connected to the feed component, the depth component can drive the hob to feed in the X-axis direction, and the feed component can drive the hob to feed in the Z-axis direction.

[0007] Preferably, the depth assembly includes a depth motor, a depth screw and a depth screw nut, the depth screw is horizontally arranged, both ends of the depth screw are rotatably mounted on the base, one end of the depth screw is fixedly connected to the output shaft of the depth motor, the casing of the depth motor is fixed on the base, the depth screw nut is threadedly connected to the depth screw, and the feed assembly is fixedly connected to the depth screw nut.

[0008] Preferably, the feed assembly includes a frame, a feed screw, a feed motor, a feed screw nut and a mounting plate, the frame is fixedly connected to the depth screw nut, the feed screw is vertically mounted on the frame and rotatably connected to the frame, one end of the feed screw is fixedly connected to the output shaft of the feed motor, the housing of the feed motor is fixed to the frame, the feed screw nut is threadedly connected to the feed screw, the mounting plate is located on one side of the frame and fixed on the feed screw nut, the mounting plate is slidably connected to the frame, the swing angle mechanism is mounted on the mounting plate and rotatably connected to the mounting plate; at least one depth guide rail is provided on the bottom of the frame, and a depth slide matching the depth guide rail is fixedly provided on the base.

[0009] Preferably, the swing angle mechanism includes a chassis and a swing angle drive assembly, a T-slot is provided at the bottom of the chassis, a hydraulic lock nut is fixedly provided on the mounting plate, the hydraulic lock nut is connected to the chassis via the T-slot, the chassis can rotate around the axis of the hydraulic lock nut, a swing angle gear ring coaxial with the T-slot is provided at the bottom of the chassis, and the swing angle gear ring is transmission connected to the swing angle drive assembly.

[0010] Preferably, the swing angle drive assembly includes a worm wheel and a worm, the worm is horizontally and rotatably installed inside the mounting plate, the worm wheel is arranged inside the mounting plate and meshes with the worm, a central shaft is fixed at the center of the worm wheel, the central shaft is rotatably connected to the mounting plate, the axis of the central shaft is parallel to the X-axis direction, one end of the central shaft is fixedly provided with a gear coaxial with the worm wheel, and the gear is meshed with the swing angle gear ring; one end of the worm extends to the outside of the mounting plate and is fixedly connected to a knob or a swing angle motor; a swing angle dial coaxial with the chassis is fixedly provided on the outer side of the chassis, and a pointer matching the swing angle dial is provided on the mounting plate.

[0011] Preferably, the tool clamping mechanism comprises a tool drive motor, a housing of the tool drive motor is fixed on the chassis, a rotating shaft is fixedly provided at the center of the hob, and the rotating shaft is fixedly connected to an output shaft of the tool drive motor.

[0012] Preferably, the tool clamping mechanism also includes a tool clamping assembly, which includes a support, a tool tip seat and a tool tip, the support is mounted on the chassis, the housing of the tool drive motor is fixed on the support, the tool tip seat is slidably connected to the support, a first hydraulic rod is installed on the support, a push rod of the first hydraulic rod is fixedly connected to one end of the tool tip seat, and the other end of the tool tip seat is fixedly provided with a tool tip matching the end of the rotating shaft.

[0013] Preferably, the workpiece clamping mechanism includes a mounting seat, a fixing ring, a workpiece drive motor and a turntable, the mounting seat is fixed on the base, the fixing ring is provided with a plurality of mounting holes evenly distributed around its circumference, the fixing ring is fixedly connected to the mounting seat via the mounting holes, the outer shell of the workpiece drive motor is fixed inside the fixing ring, a through hole is provided at the center of the turntable, the turntable is fixedly connected to the output shaft of the workpiece drive motor via the through hole, a plurality of positioning holes are provided on the turntable, and one end of the workpiece to be processed is fixedly mounted on the turntable via the mounting hole.

[0014] Preferably, the workpiece clamping mechanism also includes a workpiece clamping assembly, which includes a column, a second hydraulic rod and a workpiece top, the column is vertically fixed on the base, the second hydraulic rod is vertically installed on the column, the push rod of the second hydraulic rod is fixedly connected to the workpiece top seat, the workpiece top is fixed on the workpiece top seat, the workpiece top is vertically arranged downward and can support the other end of the workpiece to be processed, the column is provided with a vertical guide rail, and the bottom of the workpiece top seat is provided with a sliding block matching the vertical guide rail.

[0015] Compared with the prior art, the present invention has achieved the following technical effects:

[0016] The present invention stably installs the hob through the tool clamping mechanism, stably installs the workpiece to be processed through the workpiece clamping mechanism, and then uses the feeding mechanism and the swing angle mechanism to match the position of the hob with the workpiece to be processed, and uses the tool clamping mechanism and the workpiece clamping mechanism to make the hob and the workpiece to be processed rotate according to a certain speed ratio to perform gear hobbing. During the gear hobbing process, the hob and the workpiece to be processed are firmly clamped to ensure the processing accuracy, which helps to improve the processing efficiency and reduce the processing cost; at the same time, the swing angle mechanism can also be used to meet the gear hobbing processing of various gears, thereby increasing the types of gears that can be processed. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0018] Figure 1 It is a schematic diagram of the overall structure of the gear hobbing machine of the present invention;

[0019] Figure 2 It is a structural schematic diagram of the depth component in the present invention;

[0020] Figure 3 It is a structural schematic diagram of the feeding assembly in the present invention;

[0021] Figure 4 It is a structural schematic diagram of the bottom of the feeding assembly in the present invention;

[0022] Figure 5 It is a structural schematic diagram of the swing angle mechanism in the present invention;

[0023] Figure 6 It is a structural schematic diagram of the swing angle drive assembly in the present invention;

[0024] Figure 7 It is a structural schematic diagram of the tool clamping mechanism in the present invention;

[0025] Figure 8 It is a structural schematic diagram of the workpiece clamping mechanism in the present invention;

[0026] Fig. 9 It is a structural schematic diagram of the workpiece tightening assembly in the present invention;

[0027] Fig.10 It is a schematic diagram of the appearance of the gear hobbing machine of the present invention;

[0028] Among them: 1-depth assembly, 11-depth motor, 12-depth screw nut, 13-depth slide, 14-depth screw, 15-depth guide rail, 2-swing angle mechanism, 21-chassis, 22-swing angle dial, 23-screw hole, 24-swing angle gear ring, 25-T-slot, 26-gear, 27-pointer, 28-worm, 29-worm wheel, 3-workpiece tightening assembly, 31-fixed seat, 32-column, 33-second hydraulic rod, 34-vertical guide rail, 35-workpiece top, 36-work Workpiece top seat, 4-workpiece to be processed, 5-tool clamping mechanism, 51-tool drive motor, 52-support, 53-rotating shaft, 54-tool top, 55-tool top seat, 56-first hydraulic rod, 6-feed assembly, 61-frame, 62-feed motor, 63-hydraulic lock nut, 64-mounting plate, 7-hob, 8-workpiece clamping mechanism, 81-mounting seat, 82-turntable, 83-fixing ring, 84-workpiece drive motor, 85-mounting hole, 9-adjusting bracket, 10-operating screen. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0030] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the present invention is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0031] like Figure 1-Figure 10As shown: This embodiment provides a gear hobbing machine, including a base, a feed mechanism, a swing angle mechanism 2, a tool clamping mechanism 5 and a workpiece clamping mechanism 8. The feed mechanism is installed on the base, the swing angle mechanism 2 is installed on the feed mechanism and is rotatably connected to the feed mechanism, the tool clamping mechanism 5 is fixedly installed on the swing angle mechanism 2, the swing angle mechanism 2 can drive the tool clamping mechanism 5 to deflect, the tool clamping mechanism 5 is used to clamp the hob 7 and can drive the hob 7 to rotate, the feed mechanism can drive the hob 7 to perform a feeding action, and the workpiece clamping mechanism 8 is fixedly installed on the base, the workpiece clamping mechanism 8 is used to clamp the workpiece 4 to be processed and can drive the workpiece 4 to be processed to rotate, the position and rotation speed of the hob 7 are matched with the position and rotation speed of the workpiece 4 to be processed, that is, the hob 7 and the workpiece 4 to be processed rotate according to a certain speed ratio and perform gear hobbing processing, and the swing angle mechanism 2 can also be used to make the hob 7 deflect by a certain angle, so that this embodiment can be used for gear hobbing processing of various gears, thereby expanding the processing range of the gear hobbing machine. In addition, an adjusting bracket 9 can be fixedly arranged on the workpiece clamping mechanism 8, and the workpiece 4 to be processed is fixed on the adjusting bracket 9, and there are several adjusting brackets 9 with different heights. In specific applications, adjusting brackets 9 with different heights can be selected according to the different thicknesses of the workpiece 4 to be processed, so that the workpiece 4 to be processed is at a suitable processing height to facilitate processing and avoid repeated adjustment of the height of the hob 7 to improve processing efficiency.

[0032] Specifically, the feeding mechanism includes a depth component 1 and a feeding component 6. The depth component 1 is fixedly mounted on the base, the feeding component 6 is mounted on the depth component 1, the swing angle mechanism 2 is mounted on the feeding component 6 and is rotatably connected to the feeding component 6, the depth component 1 can drive the hob 7 to feed in the X-axis direction, and the feeding component 6 can drive the hob 7 to feed in the Z-axis direction. The depth component 1 includes a depth motor 11, a depth screw 14 and a depth screw nut 12. The depth screw 14 is horizontally arranged, and both ends of the depth screw 14 are rotatably mounted on the base. One end of the depth screw 14 is fixedly connected to the output shaft of the depth motor 11, and the housing of the depth motor 11 is fixed on the base. The depth screw nut 12 is threadedly connected to the depth screw 14, and the feeding component 6 is fixedly connected to the depth screw nut 12. The feed assembly 6 includes a frame 61, a feed screw, a feed motor 62, a feed screw nut and a mounting plate 64. The frame 61 is fixedly connected to the feed screw nut 12. The feed screw is vertically mounted on the frame 61 and is rotatably connected to the frame 61. One end of the feed screw is fixedly connected to the output shaft of the feed motor 62. The housing of the feed motor 62 is fixed to the frame 61. The feed screw nut is threadedly connected to the feed screw. The mounting plate 64 is located on one side of the frame 61 and is fixed to the feed screw nut. The mounting plate 64 is 4 is slidably connected to the frame 61 to assist the hob 7 to feed smoothly along the Z-axis direction. The swing angle mechanism 2 is mounted on the mounting plate 64 and is rotatably connected to the mounting plate 64. At least one depth guide rail 15 is provided on the bottom of the frame 61, and a depth slide 13 matching the depth guide rail 15 is fixedly provided on the base. In this embodiment, both sides of the frame 61 are provided with a depth guide rail 15, and the base is provided with depth slides 13 whose number and shape match the depth guide rail 15 to assist the hob 7 to feed smoothly along the X-axis direction.

[0033] Among them, the X-axis direction is the axial direction of the depth screw 14, and the Z-axis direction is the vertical direction.

[0034] Specifically, the swing angle mechanism 2 includes a chassis 21 and a swing angle drive assembly. A T-slot 25 is provided at the bottom of the chassis 21. A hydraulic lock nut 63 is fixedly provided on the mounting plate 64. The hydraulic lock nut 63 is connected to the chassis 21 through the T-slot 25. The chassis 21 can rotate around the axis of the hydraulic lock nut 63, and can ensure that the chassis 21 will not move axially. After the pressure oil introduced into the hydraulic lock nut 63 is unloaded, the disc spring in the hydraulic lock nut 63 is reset to lock and fix the chassis 21. The hydraulic lock nut 63 can adopt the hydraulic lock nut in the prior art. A swing angle gear ring 24 coaxial with the T-slot 25 is provided at the bottom of the chassis 21. The swing angle gear ring 24 is transmission-connected to the swing angle drive assembly. The swing angle drive assembly includes a worm wheel 29 and a worm 28. The worm 28 is horizontally and rotatably mounted inside the mounting plate 64. The worm wheel 29 is arranged inside the mounting plate 64 and meshes with the worm 28. A central shaft is fixed at the center of the worm wheel 29. The central shaft is rotatably connected to the mounting plate 64. The axis of the central shaft is parallel to the X-axis direction. A gear 26 coaxial with the worm wheel 29 is fixed at one end of the central shaft. The gear 26 meshes with the swing angle gear ring 24. One end of the worm 28 extends to the outside of the mounting plate 64 and is fixedly connected to a knob or a swing angle motor, that is, the worm 28 can be driven to rotate manually by turning the knob. , the worm 28 can also be driven to rotate by a swing angle motor to drive the worm wheel 29 and the gear 26 coaxial with the worm wheel 29 to rotate, thereby rotating the swing angle gear ring 24 and causing the hob 7 to deflect by a certain angle. The specific deflection angle can be reasonably selected according to the parameters of the various gears to be processed; a swing angle dial 22 coaxial with the chassis 21 is fixedly provided on the outer side of the chassis 21, and a pointer 27 matching the swing angle dial 22 is provided on the mounting plate 64. When the chassis 21 rotates by a certain angle, the swing angle degree on the swing angle dial 22 can be read by the pointing of the pointer 27.

[0035] Specifically, the tool clamping mechanism 5 includes a tool driving motor 51, the housing of which is fixed on the chassis 21, a rotating shaft 53 is fixedly provided at the center of the hob 7, and the rotating shaft 53 is fixedly connected to the output shaft of the tool driving motor 51. The tool clamping mechanism 5 also includes a tool clamping assembly, which includes a support 52, a tool tip seat 55 and a tool tip 54. The support 52 is installed on the chassis 21, and preferably, a plurality of screw holes 23 can be evenly opened on the chassis 21 in a circumferential direction. The support 52 is fixedly connected to the chassis 21 through the screw holes 23. The housing of the tool driving motor 51 is fixed on the support 52, and the tool tip seat 55 is slidably connected to the support 52. A first hydraulic rod 56 is installed on the support 52, and a push rod of the first hydraulic rod 56 is fixedly connected to one end of the tool tip seat 55, and a tool tip 54 matching the end of the rotating shaft 53 is fixedly provided at the other end of the tool tip seat 55. When in use, one end of the hob 7 can be fixed to the output shaft of the tool drive motor 51 first, and then the first hydraulic rod 56 is started to push the tool tip 54 to fix the other end of the hob 7, so that the hob 7 is fixed firmly and can prevent the hob 7 from vibrating, thereby improving the processing accuracy.

[0036] Specifically, the workpiece clamping mechanism 8 includes a mounting seat 81, a fixing ring 83, a workpiece drive motor 84 and a turntable 82. The mounting seat 81 is fixed on the base. The fixing ring 83 is evenly provided with a plurality of mounting holes 85 on the circumference. The fixing ring 83 is fixedly connected to the mounting seat 81 through the mounting holes 85. The outer shell of the workpiece drive motor 84 is fixed inside the fixing ring 83. A through hole is provided at the center of the turntable 82. The turntable 82 is fixedly connected to the output shaft of the workpiece drive motor 84 through the through hole. A plurality of positioning holes are provided on the turntable 82. One end of the workpiece 4 to be processed is fixedly mounted on the turntable 82 through the mounting hole 85. Preferably, the workpiece clamping mechanism 8 also includes a workpiece clamping assembly 3, which includes a column 32, a second hydraulic rod 33 and a workpiece top 35. The column 32 is vertically fixed on the base, and a fixed seat 31 is specifically provided on the base. The fixed seat 31 is provided with a plurality of threaded holes, and the column 32 is threadedly connected to the fixed seat 31 through the threaded holes. The second hydraulic rod 33 is vertically installed on the column 32, and the push rod of the second hydraulic rod 33 is fixedly connected to the workpiece top seat 36. The workpiece top 35 is fixed on the workpiece top seat 36. The workpiece top 35 is vertically arranged downward and pressed against the other end of the workpiece 4 to be processed. A vertical guide rail 34 is provided on the column 32, and a slider matching the vertical guide rail 34 is provided at the bottom of the workpiece top seat 36. When in use, one end of the workpiece 4 to be processed can be fixed to the output shaft of the workpiece drive motor 84 first, and then the second hydraulic rod 33 is started to push the workpiece top 35 to fix the other end of the workpiece 4 to be processed, so that the workpiece 4 to be processed is fixed firmly and can prevent the workpiece 4 to be processed from vibrating, thereby improving the processing accuracy.

[0037] In addition, the present embodiment may also include a hydraulic system, which may be composed of an existing hydraulic pump and an oil tank connected in sequence, and the hydraulic pump uniformly provides pressure oil to the hydraulic lock nut 63, the first hydraulic rod 56 and the second hydraulic rod 33. The present embodiment may also be provided with a control system, and the control system is used to realize the automatic control of the movement of the depth motor 11, the feed motor 62, the swing angle motor, the tool drive motor 51, the workpiece drive motor 84, the hydraulic lock nut 63, the first hydraulic rod 56 and the second hydraulic rod 33. A protective cover is provided on the overall structure of the gear hobbing machine of the present embodiment to increase the overall aesthetics of the gear hobbing machine of the present embodiment, and an operation screen 10 is provided on the protective cover, so that the operation display screen is electrically connected to the control system to realize more convenient and more humanized operation control. The specific gear hobbing process is as follows: the first step is to fix the workpiece 4 to be processed on the turntable 82, and turn on the second hydraulic rod 33 to drive the workpiece top 35 to press against the other end of the workpiece 4 to be processed; the second step is to select a suitable hob 7, fix one end of the hob 7 to the output shaft of the tool drive motor 51, and then start the first hydraulic rod 56 to drive the tool top 54 to press against the other end of the hob 7 rotating shaft 53; the third step is to start the swing angle motor to make the hob 7 deflect a certain angle according to the parameter requirements of the gear; the fourth step is to start the depth motor 11 and the feed motor 62 to move the hob 7 to match the position of the workpiece 4 to be processed; the fifth step is to use the control system to simultaneously control the workpiece drive motor 84 and the tool drive motor 51 to rotate according to a certain speed ratio. At the same time, the depth motor 11 and the feed motor 62 are controlled to feed and deepen according to the speed requirements in the processing technology requirements until the gear processing is completed.

[0038] It should be noted that this embodiment only improves the hardware structure of the gear hobbing machine, and does not improve the application software of the control system.

[0039] The present specification uses specific examples to illustrate the principles and implementation methods of the present invention. The above examples are only used to help understand the method and core idea of ​​the present invention. At the same time, for those skilled in the art, according to the idea of ​​the present invention, there will be changes in the specific implementation methods and application scope. In summary, the content of this specification should not be understood as limiting the present invention.

Claims

1. A gear hobbing machine, characterized in that: It comprises a base, a feeding mechanism, a swinging mechanism, a tool clamping mechanism and a workpiece clamping mechanism, wherein the feeding mechanism is mounted on the base, the swinging mechanism is mounted on the feeding mechanism and is rotatably connected to the feeding mechanism, the tool clamping mechanism is fixedly mounted on the swinging mechanism, the swinging mechanism can drive the tool clamping mechanism to deflect, the tool clamping mechanism is used to clamp a hob and can drive the hob to rotate, the feeding mechanism can drive the hob to perform a feeding action, the workpiece clamping mechanism is fixedly mounted on the base, the workpiece clamping mechanism is used to clamp a workpiece to be processed and can drive the workpiece to be processed to rotate, and the position and rotation speed of the hob match the position and rotation speed of the workpiece to be processed; The feeding mechanism comprises a depth component and a feeding component, the depth component is fixedly mounted on the base, the feeding component is mounted on the depth component, the swing angle mechanism is mounted on the feeding component and is rotatably connected to the feeding component, the depth component can drive the hob to feed in the X-axis direction, and the feeding component can drive the hob to feed in the Z-axis direction; The feed assembly comprises a frame, a feed screw, a feed motor, a feed screw nut and a mounting plate; The swing angle mechanism comprises a chassis and a swing angle drive assembly, a T-slot is provided at the bottom of the chassis, a hydraulic lock nut is fixedly provided on the mounting plate, the hydraulic lock nut is connected to the chassis via the T-slot, the chassis can rotate around the axis of the hydraulic lock nut, a swing angle gear ring coaxial with the T-slot is provided at the bottom of the chassis, and the swing angle gear ring is transmission-connected to the swing angle drive assembly; The swing angle driving assembly includes a worm wheel and a worm, the worm is horizontally and rotatably installed inside the mounting plate, the worm wheel is arranged inside the mounting plate and meshes with the worm, a central shaft is fixed at the center of the worm wheel, the central shaft is rotatably connected with the mounting plate, the axis of the central shaft is parallel to the X-axis direction, one end of the central shaft is fixedly provided with a gear coaxial with the worm wheel, and the gear is meshed with the swing angle gear ring; one end of the worm extends to the outside of the mounting plate and is fixedly connected with a knob or a swing angle motor; a swing angle dial coaxial with the chassis is fixedly provided on the outside of the chassis, and a pointer matching the swing angle dial is provided on the mounting plate; The tool clamping mechanism comprises a tool drive motor, the housing of which is fixed on the chassis, a rotating shaft is fixedly arranged at the center of the hob, and the rotating shaft is fixedly connected to the output shaft of the tool drive motor; The tool clamping mechanism also includes a tool clamping assembly, which includes a support, a tool tip seat and a tool tip, the support is installed on the chassis, the housing of the tool drive motor is fixed on the support, the tool tip seat is slidably connected to the support, a first hydraulic rod is installed on the support, a push rod of the first hydraulic rod is fixedly connected to one end of the tool tip seat, and a tool tip matching the end of the rotating shaft is fixedly provided at the other end of the tool tip seat; The workpiece clamping mechanism includes a mounting seat, a fixing ring, a workpiece driving motor and a turntable, the mounting seat is fixed on the base, the fixing ring is evenly provided with a plurality of mounting holes on its circumference, the fixing ring is fixedly connected to the mounting seat through the mounting holes, the outer shell of the workpiece driving motor is fixed inside the fixing ring, a through hole is provided at the center of the turntable, the turntable is fixedly connected to the output shaft of the workpiece driving motor through the through hole, the turntable is provided with a plurality of positioning holes, and one end of the workpiece to be processed is fixedly mounted on the turntable through the mounting hole.

2. The gear hobbing machine according to claim 1, characterized in that: The depth assembly includes a depth motor, a depth screw and a depth screw nut. The depth screw is horizontally arranged, and both ends of the depth screw are rotatably mounted on the base. One end of the depth screw is fixedly connected to the output shaft of the depth motor, and the casing of the depth motor is fixed on the base. The depth screw nut is threadedly connected to the depth screw, and the feed assembly is fixedly connected to the depth screw nut.

3. The gear hobbing machine according to claim 2, characterized in that: The frame is fixedly connected to the depth screw nut, the feed screw is vertically mounted on the frame and rotatably connected to the frame, one end of the feed screw is fixedly connected to the output shaft of the feed motor, the housing of the feed motor is fixed to the frame, the feed screw nut is threadedly connected to the feed screw, the mounting plate is located on one side of the frame and fixed on the feed screw nut, the mounting plate is slidably connected to the frame, the swing angle mechanism is mounted on the mounting plate and rotatably connected to the mounting plate; at least one depth guide rail is provided on the bottom of the frame, and a depth slide matching the depth guide rail is fixedly provided on the base.

4. The gear hobbing machine according to claim 1, characterized in that: The workpiece clamping mechanism also includes a workpiece clamping assembly, which includes a column, a second hydraulic rod and a workpiece top. The column is vertically fixed on the base, and the second hydraulic rod is vertically installed on the column. The push rod of the second hydraulic rod is fixedly connected to the workpiece top seat, and the workpiece top is fixed on the workpiece top seat. The workpiece top is vertically arranged downward and can be pressed against the other end of the workpiece to be processed. A vertical guide rail is arranged on the column, and a sliding block matching the vertical guide rail is arranged at the bottom of the workpiece top seat.

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