A spinning machine for multi-wedge and straight-tooth composite spinning

Abstract

The application discloses a multi-wedge and straight-tooth composite spinning machine, and relates to the technical field of spinning machines.The spinning machine comprises a base, a main shaft, a movable shaft, a die, a multi-wedge spinning device and a straight-tooth spinning device.The main shaft is rotatably arranged on the base.The movable shaft is rotatably arranged on the base along the axial direction of the movable shaft.The die comprises an upper die and a lower die.The upper die is fixed to the lower end of the movable shaft, and the lower die is fixed to the upper end of the main shaft.The lower die comprises a multi-wedge area and a straight-tooth area.The multi-wedge spinning device comprises a plurality of wedge spinning wheels and a shaping wheel.The straight-tooth spinning device comprises a straight-tooth spinning wheel.In the application, the multi-wedge spinning device and the straight-tooth spinning device are arranged on the same spinning machine, so that the same sheet metal material can be used to spin the multi-wedge part and the straight-tooth part on the spinning machine to form an integrated part.The production efficiency is high, the raw materials are saved, and the internal metallographic structure of the workpiece is more optimized.

Description

Technical Field

[0001] This utility model relates to the technical field of spinning machinery, specifically to a spinning machine for composite spinning of multi-wedge teeth and straight teeth. Background Technology

[0002] Currently, spinning technology is widely used in the processing of rotary mechanical parts, replacing traditional casting, stamping, and cutting processes. Compared with traditional processes, it has many advantages, including saving raw materials, high production efficiency, low energy consumption, environmental friendliness, lighter workpiece structure, high structural strength, high surface hardness due to cold work hardening, and wear resistance. Spinning technology is particularly widely used in the automotive parts industry, such as spinning automotive wheel hubs and belt pulleys.

[0003] The use of spinning technology in some drive pulleys of automobile engines has greatly improved productivity, reduced costs, decreased pollution and energy consumption, and brought about significant social benefits. However, for example, timing pulleys in engines have two types of teeth that are perpendicular to each other: multi-wedge teeth and timing spur teeth. The traditional manufacturing process involves machining the multi-wedge tooth pulley and the spur tooth disc separately and then assembling them into one piece. This manufacturing process is inefficient, produces a lot of scrap material, and wastes raw materials. Utility Model Content

[0004] To address the aforementioned problems, this invention provides a spinning machine that combines multi-wedge teeth and straight teeth for composite spinning.

[0005] To achieve the above objectives, the technical solution provided by this utility model is as follows:

[0006] A spinning machine for combined multi-wedge tooth and straight tooth spinning, comprising:

[0007] Base

[0008] A main shaft, which is rotatably mounted on a base along its own axis;

[0009] A movable shaft is rotatably arranged on the base along its own axis, and rotates synchronously with the main shaft and is coaxial with the main shaft. The movable shaft is movable along its own axis to move closer to or further away from the main shaft.

[0010] The mold includes an upper mold and a lower mold, the upper mold is fixedly installed at the lower end of the movable shaft, and the lower mold is fixedly installed at the upper end of the main shaft; the lower mold includes a multi-wedge tooth area and a straight tooth area;

[0011] A multi-wedge tooth spinning device includes multiple wedge tooth spinning wheels and a shaping wheel; the multiple wedge tooth spinning wheels respectively act on the multi-wedge tooth area of ​​the lower die; the multi-wedge tooth spinning device is movably mounted on a base; the shaping wheel acts on the straight tooth area of ​​the lower die;

[0012] A spur tooth spinning device, comprising a spur tooth spinning wheel; the spur tooth spinning device is movably mounted on a base; the spur tooth spinning wheel acts on the spur tooth area of ​​the lower die.

[0013] Optionally, the outer diameter of the straight tooth region of the mold is larger than the outer diameter of the multi-wedge tooth region, and the straight tooth region is provided with an edge chamfer on one side of the edge near the multi-wedge tooth region; the shaping wheel includes a straight tooth shaping region and an edge chamfer shaping region that are connected to each other, the straight tooth shaping region acts on the straight tooth region of the mold, and the edge chamfer shaping region acts on the edge chamfer of the straight tooth region.

[0014] Optionally, the spur gear spinning device includes a synchronization mechanism that connects the main shaft and the spur gear spinning wheel so that the spur gear spinning wheel rotates synchronously and in opposite directions with the main shaft.

[0015] Optionally, a first driving mechanism is provided on the base, and the spur gear spinning device further includes a first mounting bracket, which is slidably mounted on the base, and the spur gear spinning wheel is arranged on the first mounting bracket; the first driving mechanism drives the first mounting bracket to slide so that the spur gear spinning wheel can move closer to or further away from the main shaft.

[0016] Optionally, the synchronization mechanism includes a first commutator and a second commutator;

[0017] The first commutator is mounted on the base. The first commutator includes a first input terminal and a first output terminal. A first pulley set is provided between the first input terminal and the main shaft, and the two are synchronously connected through the first pulley set. A synchronization shaft is provided at the first output terminal.

[0018] The second commutator and the spur gear spinning wheel are both mounted on the first mounting bracket. The second commutator includes a second input end and a second output end. A second pulley set is provided between the synchronous shaft and the second input end, and is synchronously connected through the second pulley set. The second pulley set can slide along the synchronous shaft axially relative to the synchronous shaft. A third pulley set is provided between the second output end and the spur gear spinning wheel, and is synchronously connected through the third pulley set.

[0019] By switching the first commutator and the second commutator, the spur gear spinning wheel is made to rotate synchronously and in the opposite direction to the main shaft.

[0020] Optionally, the multi-wedge tooth spinning device includes a spinning turret, which is connected to an indexing divider. The multiple wedge tooth spinning wheels include a first spinning wheel, a second spinning wheel, a third spinning wheel, a fourth spinning wheel, and a fifth spinning wheel. The multiple wedge tooth spinning wheels and the shaping wheel are arranged at uniform angular intervals along the circumference of the spinning turret. The indexing divider is used to control the spinning turret to rotate at the same angle in a single rotation.

[0021] Optionally, a second drive mechanism is provided on the base, and the multi-wedge tooth spinning device further includes a second mounting bracket, which is slidably mounted on the base; the spinning turret is arranged on the second mounting bracket, and the second drive mechanism drives the second mounting bracket to slide so that the spinning turret can move closer to or further away from the main shaft.

[0022] Optionally, the base is provided with two parallel main plates, a movable plate, and a secondary plate, with a plurality of guide posts fixedly arranged between the main plates and the secondary plates; the movable plate is slidably disposed between the main plates and the secondary plates along the axial direction of the guide posts; the main shaft is rotatably mounted on the main plate, and the movable shaft is rotatably mounted on the movable plate, with the main shaft and the movable shaft coaxially arranged; the secondary plate is provided with a lifting mechanism, which drives the movable plate to move along the axial direction of the guide posts, so that the movable shaft moves closer to or away from the main shaft; the main plates and the movable plates are respectively provided with synchronous servo motors, which drive the main shaft and the movable shaft to rotate synchronously through synchronous pulley sets.

[0023] Optionally, the spinning machine further includes a CNC system for controlling the operation of various components on the spinning machine; the movable plate is provided with a displacement detection device for detecting the distance the movable plate moves along the axial direction of the guide column, and the CNC system receives the signal from the displacement detection device and then controls the lifting mechanism to drive the movable plate to move up and down.

[0024] Optionally, a feed rod is movably provided axially inside the main shaft.

[0025] The technical solution provided by this utility model has the following beneficial effects:

[0026] 1. By simultaneously installing a multi-wedge tooth spinning device and a straight tooth spinning device on a spinning machine, the same sheet metal material can be used to spin the multi-wedge tooth part and the straight tooth part on the spinning machine in one piece; there is no need to manufacture and assemble them separately, resulting in high production efficiency, saving raw materials, and the internal metallographic structure of the one-piece molded workpiece is more optimized compared to the workpiece manufactured and assembled separately.

[0027] 2. By setting the forming wheel, it can be ensured that the deformation of the material during the straight tooth spinning process will not affect the multi-wedge teeth that have already been spun on the workpiece, thereby improving the finished product quality of the workpiece;

[0028] 3. The synchronous mechanism ensures that the workpiece is almost free from sliding friction during the spinning process. The spur tooth spinning wheel essentially rolls and squeezes the workpiece, reducing wear, maintaining a smooth surface, and improving the wear resistance and fatigue resistance of the spur tooth section. It also reduces wear between the spur tooth spinning wheel and the die, extending the service life of the equipment. Attached Figure Description

[0029] Figure 1 This is an overall front view of this embodiment;

[0030] Figure 2 This is a schematic diagram of the overall structure of this embodiment;

[0031] Figure 3 This is a cross-sectional view of the workpiece being clamped between the upper and lower molds in this embodiment;

[0032] Figure 4 This is a schematic diagram of the straight-tooth spinning device in this embodiment;

[0033] Figure 5 This is a schematic diagram of the spur gear spinning wheel, main shaft, and synchronization mechanism in this embodiment;

[0034] Figure 6 This is a schematic diagram of the spur tooth spinning wheel and the shaping wheel spinning the workpiece together in this embodiment;

[0035] Figure 7 yes Figure 6 Enlarged view of point A in the middle;

[0036] Figure 8 This is a schematic diagram of the multi-wedge tooth spinning device in this embodiment;

[0037] Figure 9 This is a schematic diagram of the swivel turret and multiple spinning wheels in this embodiment.

[0038] Explanation of reference numerals in the attached drawings: 1. Base; 11. Main board; 12. Movable plate; 13. Sub-plate; 131. Lifting mechanism; 14. Guide column; 15. First drive mechanism; 16. Second drive mechanism; 17. Synchronous servo motor; 2. Main spindle; 21. Unloading rod; 3. Movable shaft; 4. Mold; 41. Upper mold; 42. Lower mold; 421. Multi-wedge tooth area; 422. Straight tooth area; 423. Edge chamfering; 5. Multi-wedge tooth spinning device; 51. First spinning wheel; 52. Second spinning wheel; 53. Third spinning wheel; 54. Fourth spinning wheel; 55. Fifth spinning wheel; 56. Shaping wheel; 561. Straight tooth shaping area; 562. Edge chamfering area. 57. Shaping area; 571. Rotating turret; 572. Base; 573. Mounting seat; 574. Adjusting groove; 58. Indexing divider; 59. Second mounting bracket; 6. Straight tooth spinning device; 61. Straight tooth spinning wheel; 62. Synchronization mechanism; 621. First commutator; 6211. First input end; 6212. First output end; 6213. Synchronization shaft; 622. Second commutator; 6221. Second input end; 6222. Second output end; 63. First mounting bracket; 64. First pulley group; 65. Second pulley group; 66. Third pulley group; 7. Workpiece; 71. Multi-wedge tooth section; 72. Straight tooth section; 721. First end face. Detailed Implementation

[0039] To further illustrate the various embodiments, the present invention provides accompanying drawings. These drawings are part of the disclosure of the present invention and are mainly used to illustrate the embodiments, and can be used in conjunction with the relevant descriptions in the specification to explain the operating principles of the embodiments. With reference to these drawings, those skilled in the art should be able to understand other possible implementations and the advantages of the present invention. Components in the drawings are not drawn to scale, and similar component symbols are generally used to represent similar components.

[0040] The present invention will now be further described in conjunction with the accompanying drawings and specific embodiments.

[0041] Reference Figure 1-9This embodiment provides a spinning machine for combined multi-wedge tooth and straight tooth spinning, including a base 1, a main shaft 2, a movable shaft 3, a mold 4, a multi-wedge tooth spinning device 5, and a straight tooth spinning device 6. The main shaft 2 is rotatably mounted on the base 1 along its own axial direction. The movable shaft 3 is rotatably arranged on the base 1 along its own axial direction and rotates synchronously with the main shaft 2, and is coaxially arranged with the main shaft 2. The movable shaft 3 is movable along its own axial direction to move closer to or further away from the main shaft 2. The mold 4 includes an upper mold 41 and a lower mold 42. The upper mold 41 is fixedly mounted on the lower end of the movable shaft 3, and the lower mold 42 is fixedly mounted on the upper end of the main shaft 2. The lower mold 42 includes a multi-wedge tooth area 421 and a straight tooth area 422, which are used to cooperate with the multi-wedge tooth spinning device 5 and the straight tooth spinning device 6 to spin the workpiece 7 to form multi-wedge tooth portions 71 and straight tooth portions 72. The multi-wedge tooth spinning device 5 includes multiple wedge tooth spinning wheels and a shaping wheel 56. Multiple wedge-tooth spinning rollers act on the multi-wedge-tooth region 421 of the lower die 42 to spin-form the multi-wedge-tooth portion 71 of the workpiece 7. A shaping roller 56 acts on the straight-tooth region 422 of the lower die 42. The multi-wedge-tooth spinning device 5 is movably mounted on the base 1. The straight-tooth spinning device 6 includes a straight-tooth spinning roller 61, which is movably mounted on the base 1. The straight-tooth spinning roller 61 acts on the straight-tooth region 422 of the lower die 42. The shaping roller 56, together with the straight-tooth spinning roller 61, acts on the straight-tooth region 422 of the lower die 42 to spin-form the straight-tooth portion 72 of the workpiece 7.

[0042] By simultaneously installing a multi-wedge tooth spinning device 5 and a straight tooth spinning device 6 on a spinning machine, the same sheet metal material can be used to spin the multi-wedge tooth section 71 and the straight tooth section 72 on the spinning machine, forming a single piece. This eliminates the need for separate manufacturing and assembly, resulting in high production efficiency, material savings, and a more optimized internal metallographic structure for the integrally formed workpiece 7 compared to separately manufactured and assembled workpieces 7.

[0043] Furthermore, the outer diameter of the straight tooth region 422 of the lower die 42 is larger than the outer diameter of the multi-wedge tooth region 421. An arc-shaped chamfer 423 is provided on the edge of the straight tooth region 422 near the multi-wedge tooth region 421. Correspondingly, the finished workpiece 7 has a chamfered structure on the edge of the straight tooth region 422 near the multi-wedge tooth region 421. The shaping wheel 56 includes a straight tooth shaping region 561 and an edge chamfer shaping region 562 that are interconnected. Specifically, the shaping wheel 56 is integrally formed by a first cylinder and a second cylinder, forming an annular stepped structure. The diameter of the first cylinder is smaller than the diameter of the second cylinder. The first cylinder and the second cylinder are connected by an arc-shaped chamfer as the edge chamfer shaping region 562, and the outer circumferential surface of the first cylinder serves as the straight tooth shaping region 561. The end face of the straight tooth portion 72 on the workpiece 7 facing the multi-wedge tooth portion 71 is defined as the first end face 721, which is perpendicular to the axial direction of the workpiece 7. During the shaping process, the first end face 721 does not contact the shaping wheel 56 to avoid large-area sliding friction, which could cause significant wear on the workpiece 7 material. Figure 6 and Figure 7 As shown.

[0044] Specifically, the straight tooth forming area 561, in conjunction with the straight tooth area 422, spins the straight tooth portion 72 of the workpiece 7, while the edge chamfering forming area 562, in conjunction with the edge chamfer 423 of the straight tooth area 422 of the lower die 42, spins the edge of the straight tooth portion 72 of the workpiece 7. When the forming wheel 56 acts solely on the straight tooth portion 72 of the workpiece 7, the edge chamfering forming area 562 can axially compress and flow the material of the workpiece 7 to the straight tooth portion 72, ensuring that the straight tooth portion 72 of the workpiece 7 has sufficient axial length to be spin-formed.

[0045] When the straight tooth spinning wheel 61 spins the straight tooth portion 72 of the workpiece 7, the forming wheel 56 also spins the straight tooth portion 72 of the workpiece 7. By setting the chamfering forming area 562 on the edge of the forming wheel 56, the material of the straight tooth portion 72 of the workpiece 7 can be restricted from flowing axially to the multi-wedge tooth portion 71, thereby protecting the formed multi-wedge tooth from the effect of the spinning of the straight tooth portion 72. At the same time, it ensures that there is enough material to be spun in the straight tooth portion 72, thereby ensuring the spinning quality of the straight tooth portion 72. By setting the straight tooth forming area 561 on the forming wheel 56, it can generate a radial pressure situation with the straight tooth spinning wheel 61 on the workpiece 7, that is, the radial pressure of the two on the workpiece 7 is opposite, which can improve the spinning forming accuracy of the straight tooth portion 72 of the workpiece 7.

[0046] like Figure 1 and Figure 2As shown, the spinning machine also includes a CNC system for controlling the operation of various components and mechanisms on the spinning machine. The base 1 is provided with two parallel main plates 11, a movable plate 12, and a secondary plate 13. Several guide posts 14 are fixedly arranged between the main plates 11 and the secondary plates 13. In this embodiment, four guide posts 14 are arranged circumferentially, and each of the four corners of the main plates 11, movable plates 12, and secondary plates 13 is fitted and connected to a corresponding guide post 14. The movable plate 12 is slidably disposed between the main plates 11 and the secondary plates 13 along the axial direction of the guide posts 14. The main shaft 2 is rotatably mounted on the main plate 11, and the movable shaft 3 is rotatably mounted on the movable plate 12. The main shaft 2 and the movable shaft 3 are coaxially arranged. A lifting mechanism 131 is provided on the secondary plate 13, which drives the connected movable shaft 3 to move axially to approach or move away from the main shaft 2. In this embodiment, the lifting mechanism 131 uses a hydraulic cylinder. To precisely control the lifting process of the movable shaft 3, a displacement detection device is installed on the movable plate 12. The displacement detection device transmits signals to the CNC system, which then controls the hydraulic system of the hydraulic cylinder to operate, thereby accurately controlling the moving distance of the movable shaft 3. The displacement detection device can be an infrared laser sensor, etc. The main plate 11 and the movable plate 12 are respectively equipped with synchronous servo motors 17, which drive the main shaft 2 and the movable shaft 3 to rotate synchronously through synchronous pulley sets. In addition, the main shaft 2 is equipped with a ejector bar 21. The ejector bar 21 can be driven by the ejector hydraulic cylinder to push the processed workpiece 7 out of the lower die 42, such as... Figure 3 As shown.

[0047] Furthermore, such as Figure 4 and Figure 5 As shown, the spur tooth spinning device 6 includes a synchronization mechanism 62, which connects the main shaft 2 and the spur tooth spinning wheel 61, so that the spur tooth spinning wheel 61 rotates synchronously and in opposite directions with the main shaft 2. In this way, the spur tooth spinning wheel 61 and the lower die 42 at the upper end of the main shaft 2 rotate synchronously and in the same direction. During the spinning process on the workpiece 7, the workpiece 7 experiences almost no sliding friction; the spur tooth spinning wheel 61 essentially rolls and compresses the workpiece 7, reducing wear on the workpiece 7, maintaining the smoothness of the workpiece 7 surface, improving the wear resistance and fatigue resistance of the spur tooth portion 72 of the workpiece 7, and also reducing wear on the spur tooth spinning wheel 61, extending its service life. The tooth profile of the workpiece 7 can be changed by adjusting the tooth profile design of the lower die 42 and the spur tooth spinning wheel 61.

[0048] Specifically, a first drive mechanism 15 is provided on the base 1, and the spur gear spinning device 6 also includes a first mounting bracket 63, which is slidably mounted on the base 1. The spur gear spinning wheel 61 is arranged on the first mounting bracket 63. The first drive mechanism 15 drives the first mounting bracket 63 to slide, so that the spur gear spinning wheel 61 can move closer to or away from the main shaft 2. In this embodiment, the first drive mechanism 15 adopts a servo motor, a worm gear reducer, and a lead screw structure. The servo motor drives the worm gear reducer, and the output end of the worm gear reducer is connected to the lead screw. The first mounting bracket 63 is sleeved on the lead screw by a slider. A slide rail is provided on the base 1 for the first mounting bracket 63 to slide. Thus, by driving the first mounting bracket 63 towards or away from the main shaft 2 by the servo motor, the feed or retraction of the spur gear spinning wheel 61 is realized.

[0049] Furthermore, the synchronization mechanism 62 includes a first commutator 621 and a second commutator 622. The first commutator 621 is fixedly mounted on the base 1. The first commutator 621 includes a first input end 6211 and a first output end 6212. A first pulley set 64 is provided between the first input end 6211 and the main shaft 2, and they are synchronously connected through the first pulley set 64, so that the transmission ratio between the two is 1:1. The first output end 6212 is provided with a synchronization shaft 6213, which is a splined shaft structure. Both the second commutator 622 and the spur gear spinning wheel 61 are mounted on the first mounting bracket 63. The second commutator 622 includes a second input end 6221 and a second output end 6222. A second pulley set 65 is provided between the synchronous shaft 6213 and the second input end 6221, and they are synchronously connected through the second pulley set 65, making the transmission ratio between the two 1:1. The second pulley set 65 can slide axially along the synchronous shaft 6213 relative to the synchronous shaft 6213, thereby ensuring that the first drive mechanism 15 can drive the spur gear spinning wheel 61 on the first mounting bracket 63 to move closer to or away from the main shaft 2. A third pulley set 66 is provided between the second output end 6222 and the spur gear spinning wheel 61, and they are synchronously connected through the third pulley set 66, making the transmission ratio between the two 1:1. By switching the first commutator 621 and the second commutator 622, the first input end 6211 and the second output end 6222 rotate at the same speed but in opposite directions, thus enabling the spur gear spinning wheel 61 to rotate synchronously and in opposite directions with the main shaft 2. The spur gear spinning wheel 61 and the main shaft 2 share a common power source, and the synchronization mechanism 62 is mechanically connected, ensuring extremely reliable and precise synchronization.

[0050] Furthermore, such as Figure 8 and Figure 9As shown, the multi-wedge tooth spinning device 5 includes a spinning turret 57, which is connected to an indexing divider 58. Multiple wedge tooth spinning rollers include a first spinning roller 51, a second spinning roller 52, a third spinning roller 53, a fourth spinning roller 54, and a fifth spinning roller 55. The multiple wedge tooth spinning rollers and the shaping roller 56 are arranged at uniform angular intervals along the circumference of the spinning turret 57. The indexing divider 58 is a six-indexing divider. The indexing divider 58 is used to control the spinning turret 57 to rotate at the same angle in a single rotation, i.e., the angle of each rotation is 60°. By using the spinning turret 57, multiple wedge tooth spinning rollers and the shaping roller 56 are placed on the spinning turret 57, making the overall structure of the spinning machine precise and compact, and enabling it to meet the complex and diverse deformation requirements of the spun blank. Multiple wedge-tooth spinning rollers and shaping rollers 56 are axially adjustable along the turret 57, facilitating the replacement of spinning rollers of different specifications to spin workpieces 7 and manufacture different workpieces 7. In this embodiment, the turret 57 has a base 571 arranged axially for each spinning roller and shaping roller 56. The base 571 is adjustablely equipped with a mounting seat 572 along the turret axial direction. Specifically, the base 571 has an adjustment groove 573 extending through it along the turret axial direction, and the mounting seat 572 has a connecting hole. The bolt head is engaged in the adjustment groove 573, the connecting hole of the mounting seat 572 is fitted onto the bolt, and locked with a nut, thus fixing the mounting seat 572 onto the base 571. Multiple wedge-tooth spinning rollers and shaping rollers 56 are rotatably mounted on their corresponding mounting seats 572, with the rotation axis of each spinning roller parallel to the turret axial direction.

[0051] Furthermore, a second drive mechanism 16 is provided on the base 1, and the multi-wedge tooth spinning device 5 also includes a second mounting bracket 59, which is slidably mounted on the base 1. A spinning turret 57 is arranged on the second mounting bracket 59, and the second drive mechanism 16 drives the second mounting bracket 59 to slide, allowing the spinning turret 57 to move closer to or further away from the main shaft 2. The second drive mechanism 16 can adopt the same structure as the first drive mechanism 15 to realize the feeding or retraction of the spinning wheel.

[0052] Although the present invention has been specifically shown and described in conjunction with preferred embodiments, those skilled in the art should understand that various changes in form and detail may be made to the present invention without departing from the spirit and scope of the present invention as defined in the appended claims, and all such changes shall be within the scope of protection of the present invention.

Claims

1. A spinning machine for composite spinning of multi-wedge teeth and straight teeth, characterized in that: Base A main shaft, which is rotatably mounted on a base along its own axis; A movable shaft is rotatably arranged on the base along its own axis, and rotates synchronously with the main shaft and is coaxial with the main shaft. The movable shaft is movable along its own axis to move closer to or further away from the main shaft. The mold includes an upper mold and a lower mold, the upper mold is fixedly installed at the lower end of the movable shaft, and the lower mold is fixedly installed at the upper end of the main shaft; the lower mold includes a multi-wedge tooth area and a straight tooth area; A multi-wedge tooth spinning device includes multiple wedge tooth spinning wheels and a shaping wheel; the multiple wedge tooth spinning wheels respectively act on the multi-wedge tooth area of ​​the lower die; the multi-wedge tooth spinning device is movably mounted on a base; the shaping wheel acts on the straight tooth area of ​​the lower die; A spur tooth spinning device, comprising a spur tooth spinning wheel; the spur tooth spinning device is movably mounted on a base; the spur tooth spinning wheel acts on the spur tooth area of ​​the lower die.

2. The spinning machine for composite spinning of multi-wedge teeth and straight teeth according to claim 1, characterized in that: The outer diameter of the straight tooth region of the mold is larger than the outer diameter of the multi-wedge tooth region. The straight tooth region has an edge chamfer on one side of the edge closest to the multi-wedge tooth region. The shaping wheel includes a straight tooth shaping region and an edge chamfer shaping region that are connected to each other. The straight tooth shaping region acts on the straight tooth region of the mold, and the edge chamfer shaping region acts on the edge chamfer of the straight tooth region.

3. The spinning machine for composite spinning of multi-wedge teeth and straight teeth according to claim 1, characterized in that: The spur gear spinning device includes a synchronization mechanism that connects the main shaft and the spur gear spinning wheel so that the spur gear spinning wheel rotates synchronously and in the opposite direction to the main shaft.

4. The spinning machine for composite spinning of multi-wedge teeth and straight teeth according to claim 3, characterized in that: The base is provided with a first driving mechanism, and the spur gear spinning device further includes a first mounting frame, which is slidably mounted on the base, and the spur gear spinning wheel is arranged on the first mounting frame; the first driving mechanism drives the first mounting frame to slide so that the spur gear spinning wheel can move closer to or away from the main shaft.

5. A spinning machine for composite spinning of multi-wedge teeth and straight teeth according to claim 4, characterized in that: The synchronization mechanism includes a first commutator and a second commutator; The first commutator is mounted on the base. The first commutator includes a first input terminal and a first output terminal. A first pulley set is provided between the first input terminal and the main shaft, and the two are synchronously connected through the first pulley set. A synchronization shaft is provided at the first output terminal. The second commutator and the spur gear spinning wheel are both mounted on the first mounting bracket. The second commutator includes a second input end and a second output end. A second pulley set is provided between the synchronous shaft and the second input end, and is synchronously connected through the second pulley set. The second pulley set can slide along the synchronous shaft axially relative to the synchronous shaft. A third pulley set is provided between the second output end and the spur gear spinning wheel, and is synchronously connected through the third pulley set. By switching the first commutator and the second commutator, the spur gear spinning wheel is made to rotate synchronously and in the opposite direction to the main shaft.

6. A spinning machine for composite spinning of multi-wedge teeth and straight teeth according to claim 1, characterized in that: The multi-wedge tooth spinning device includes a spinning turret, which is connected to an indexing divider. The multiple wedge tooth spinning wheels include a first spinning wheel, a second spinning wheel, a third spinning wheel, a fourth spinning wheel, and a fifth spinning wheel. The multiple wedge tooth spinning wheels and the shaping wheel are arranged at uniform angular intervals along the circumference of the spinning turret. The indexing divider is used to control the spinning turret to rotate at the same angle in a single rotation.

7. A spinning machine for composite spinning of multi-wedge teeth and straight teeth according to claim 1, characterized in that: The base is provided with a second drive mechanism, and the multi-wedge tooth spinning device also includes a second mounting frame, which is slidably mounted on the base; the spinning turret is arranged on the second mounting frame, and the second drive mechanism drives the second mounting frame to slide so that the spinning turret can move closer to or further away from the main shaft.

8. A spinning machine for composite spinning of multi-wedge teeth and straight teeth according to claim 1, characterized in that: The base is provided with two parallel main plates, a movable plate, and a sub-plate. Several guide posts are fixedly arranged between the main plates and the sub-plates. The movable plate is slidably disposed between the main plates and the sub-plates along the axial direction of the guide posts. The main shaft is rotatably mounted on the main plate, and the movable shaft is rotatably mounted on the movable plate. The main shaft and the movable shaft are coaxially arranged. The sub-plate is provided with a lifting mechanism, which drives the movable plate to move along the axial direction of the guide posts so that the movable shaft moves closer to or away from the main shaft. The main plates and the movable plates are respectively provided with synchronous servo motors, which drive the main shaft and the movable shaft to rotate synchronously through synchronous pulley sets.

9. A spinning machine for composite spinning of multi-wedge teeth and straight teeth according to claim 8, characterized in that: The spinning machine also includes a CNC system for controlling the operation of various components on the spinning machine; the movable plate is provided with a displacement detection device for detecting the distance the movable plate moves along the axial direction of the guide column, and the CNC system receives the signal from the displacement detection device and then controls the lifting mechanism to drive the movable plate to move up and down.

10. A spinning machine for composite spinning of multi-wedge teeth and straight teeth according to claim 1, characterized in that: The main shaft has an axially movable ejector bar inside.

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