A large modulus spur gear cold extrusion feeding mechanism

Abstract

The application relates to the technical field of gear machining, in particular to a large-module spur cylindrical gear cold extrusion feeding mechanism, which comprises a lower die, a support, a mounting frame fixedly installed on the side wall of the lower die, a sliding frame slidably installed on the top wall of the mounting frame, a clamping plate slidably installed on the side wall of the sliding frame, a telescopic motor fixedly installed at the top end of the support, an output rod movably installed at the output end of the telescopic motor and fixedly installed at the other end on the side wall of the sliding frame, and an automatic feeding mechanism installed between the telescopic motor and the sliding frame. The automatic detection and clamping of the object are completed through the cooperation of the material detection assembly and the clamping assembly, the production efficiency is improved, the cooperation of the control discharging assembly and the automatic discharging assembly is utilized, the discharging and the placing of new material on the lower die are automatically completed, manual operation is not needed, and the production automation is further improved.

Description

Technical Field

[0001] This invention relates to the field of gear processing technology, specifically to a cold extrusion feeding mechanism for large-module spur gears. Background Technology

[0002] Cold extrusion is a processing method in which a metal blank is placed in a cold extrusion die cavity, and pressure is applied to the blank by a fixed punch on a press at room temperature, causing the metal blank to undergo plastic deformation to obtain a part.

[0003] In existing technologies, cold extrusion dies for gears simply complete the plasticization of the workpiece. Loading and unloading are generally done manually, requiring workers to wear thick heat-resistant gloves. This not only results in low production efficiency but also poses some safety hazards. Some machines rely on mechanical loading, adding multiple drive structures and using multiple cylinders or hydraulic cylinders to drive the robotic arm for loading, which leads to higher production costs.

[0004] To address this, a cold extrusion feeding mechanism for large-module spur gears is proposed. Summary of the Invention

[0005] The purpose of this invention is to provide a cold extrusion feeding mechanism for large-module spur gears. By installing an automatic feeding mechanism on the side wall of the lower die, which includes components such as material detection, controlled feeding, and automatic unloading, the manual feeding and unloading are replaced, which not only improves processing efficiency but also improves processing safety, thereby solving the problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution:

[0007] A cold extrusion feeding mechanism for large-module spur gears includes a lower die and a support; a mounting frame fixedly mounted on the side wall of the lower die; a slide mounted slidably on the top wall of the mounting frame; a clamping plate slidably mounted on the side wall of the slide; a telescopic motor fixedly mounted on the top of the support; an output rod movably mounted on the output end of the telescopic motor, with its other end fixedly mounted on the side wall of the slide; and an automatic feeding mechanism installed between the telescopic motor and the slide.

[0008] An automatic feeding mechanism is used to assist in loading and unloading materials on the lower mold. After the material on the lower mold is cold-pressed, it is automatically unloaded in a timely manner. At the same time as unloading, new materials to be formed are placed on the lower mold, replacing manual operation, improving production efficiency and production safety.

[0009] Preferably, the automatic feeding mechanism includes a clamping component, a material detection component, a material release control component, an automatic unloading component, and an automatic replenishment component.

[0010] The clamping assembly is used for fixing and positioning during feeding, improving stability and accuracy. The material detection assembly provides feedback when material falls between the two clamping plates, making clamping more accurate. The controlled unloading assembly automatically releases the two clamping plates when the material is delivered to a designated position on the lower mold, further improving feeding accuracy and processing quality. The automatic unloading assembly enables rapid unloading without manual operation, further improving production efficiency. The automatic replenishing assembly places new material between the two clamping plates after loading, further improving production continuity and efficiency.

[0011] Preferably, the clamping assembly includes a slider fixedly mounted on the clamping plate, a slide rail having a groove matching the slider, an electromagnet fixedly inserted on each of the two sliders, two permanent magnets symmetrically fixedly mounted on the inner walls of both sides of the slide rail, and an adjusting spring connecting the two sliders.

[0012] The two clamping plates are brought closer together by the attraction between the electromagnets, thus clamping the material. The two permanent magnets repel the two ends of the two electromagnets, which can enhance the clamping force and make the clamping more secure, thereby improving the stability of feeding and the quality of production.

[0013] Preferably, guide grooves are provided on the outer wall of the two clamping plates on the side closest to each other.

[0014] The guide grooves on the two clamping plates are arc-shaped. Since the cold-pressed workpiece of the gear is a cylinder, the pressing action between the curved surfaces can drive the material to move while the clamping plates are holding the material from both sides. This not only improves the stability of the clamping, but also makes it easier to control the position of the material after clamping, which facilitates subsequent feeding.

[0015] Preferably, the material detection component includes a feedback groove on the top wall of the mounting frame, a detection block is slidably installed in the feedback groove, a fixing frame is fixedly installed in the feedback groove, two first reset springs are connected between the fixing frame and the detection block, and first contact electrodes are fixedly installed on the outer wall of the detection block on the side close to the fixing frame.

[0016] When the material falls onto the mounting frame, it presses against the detection block, causing the detection block to move into the feedback groove. This ensures that the two first contact electrodes make full contact, activating the circuit of the telescopic motor. The telescopic motor then pushes the slide carriage through the output rod, thereby moving the two clamping plates and the material being held towards the lower mold. It is worth noting that the telescopic motor reciprocates to drive the output rod, meaning the output rod moves at a constant speed to achieve the purpose of feeding. This replaces the manual hand-feeding method, improving production efficiency and safety.

[0017] Preferably, the material control assembly includes two fixed tubes symmetrically fixedly installed on the outer walls of both sides of the slide, two spring rods symmetrically installed on the inner walls of both sides of the fixed tubes, and a second contact electrode fixedly installed at one end of each of the two spring rods close to each other, and two circuit breakers symmetrically fixedly installed on the top wall of the mounting frame.

[0018] When the material reaches the center of the lower mold, two circuit breakers are inserted into two fixed tubes and separate the two second contact electrodes. At this time, the circuit of the two electromagnets is broken, the magnetic attraction between the two electromagnets disappears, and the magnetic repulsion between the two permanent magnets and the electromagnets becomes a one-way attraction of the former to the latter, thereby causing the two clamps to separate quickly, thus realizing automatic material feeding, replacing manual operation and further improving production efficiency.

[0019] Preferably, the automatic unloading assembly includes two fixed plates symmetrically fixedly installed on the side wall of the carriage, unloading plates are rotatably installed on the outer wall of the two fixed plates that are close to each other, limit plates are fixedly installed on the two fixed plates, reset plates are fixedly installed on the two fixed plates, and second reset springs are connected between the two reset plates and the two unloading plates respectively. A guide frame is fixedly installed on the outer wall of one side of the lower mold.

[0020] During the feeding process, the two unloading plates first come into contact with the cold-pressed workpiece. Under the action of the limiting plate, the two unloading plates can only rotate in one direction, thus pushing the workpiece off the lower mold to complete the unloading. Then, a new workpiece to be processed is placed down. When the telescopic motor carries the two unloading plates back, the workpiece is heavier and will push the two unloading plates to rotate until the unloading plates lose contact with the workpiece. Under the action of the second return spring, the two unloading plates complete the reset. The cycle repeats, and the unloading plates can unload in one direction, replacing manual unloading and further improving production efficiency.

[0021] Preferably, the automatic feeding mechanism includes a piston cylinder mounted above the telescopic motor, and the piston cylinder is U-shaped. A first piston rod and a second piston rod are respectively movably inserted into both ends of the piston cylinder. A connecting rod connects the first piston rod and the output rod. A feeding block is fixedly installed at one end of the second piston rod. A storage cylinder is mounted above the mounting frame, and the feeding block movably penetrates one side of the outer wall of the storage cylinder. A guide tube is fixedly installed on the outer wall of the storage cylinder away from the feeding block, and a discharge hole is opened between the guide tube and the storage cylinder.

[0022] When the telescopic motor uses the output rod to drive the slide to reset, the connecting rod drives the first piston rod to move into the piston cylinder. The pressure pushes the second piston rod out of the piston cylinder, thereby driving the loading block to move into the storage cylinder. The bottom workpiece is pushed into the guide tube, and the workpiece falls onto the mounting frame through the guide tube. Under the action of the guide tube, the falling position can be initially controlled, realizing automatic material replenishment, improving the continuity of production, and further improving production efficiency.

[0023] Preferably, the piston cylinder contains transmission fluid.

[0024] It is worth noting that the transmission fluid is located between the first piston rod and the second piston rod, which can increase the transmission pressure between the two. The transmission fluid is not easily compressed, thereby further improving the stability of the transmission and the stability of the feeding.

[0025] Preferably, a third return spring is fitted onto the second piston rod.

[0026] The third return spring can increase the pressure of the second piston rod on the transmission fluid. When the first piston rod moves to the outside of the piston cylinder, the third return spring can help the second piston rod return to its original position more quickly, thereby completing the feeding work more stably and further improving production efficiency.

[0027] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0028] The equipment utilizes the cooperation of material detection and clamping components to automatically clamp objects when they fall between two clamping plates, eliminating the need for manual operation and improving production efficiency. The control feeding component and automatic unloading component work together to automatically unload materials and place new materials onto the lower mold. Simultaneously, after placing new materials, an automatic replenishment component adds another material between the two clamping plates, also requiring no manual operation, further enhancing production automation. Furthermore, the equipment uses the up-and-down movement of a cold extrusion device to drive the operation of various mechanisms, saving production costs. Attached Figure Description

[0029] Figure 1 This is a front view of the present invention;

[0030] Figure 2 This is a schematic diagram of the AA part in this invention;

[0031] Figure 3 This is a schematic diagram of the structure of the storage cylinder and guide tube in this invention;

[0032] Figure 4 This is an enlarged view of part B in this invention;

[0033] Figure 5This is an enlarged view of the structure of part C in this invention;

[0034] Figure 6 This is an enlarged view of part D in this invention.

[0035] In the diagram: 1. Lower mold; 2. Mounting frame; 3. Slide; 4. Clamping plate; 5. Telescopic motor; 6. Output rod; 7. Bracket; 8. Slider; 9. Slide groove; 10. Electromagnet; 11. Permanent magnet; 12. Adjusting spring; 13. Guide groove; 14. Feedback groove; 15. Detection block; 16. Fixing frame; 17. First reset spring; 18. First contact electrode; 19. Discharge hole; 20. Fixing tube; 21. Spring rod; 22. Second contact electrode; 23. Circuit breaker plate; 24. Fixing plate; 25. Unloading plate; 26. Limiting plate; 27. Reset plate; 28. Second reset spring; 29. ​​Piston cylinder; 30. First piston rod; 31. Second piston rod; 32. Connecting rod; 33. Third reset spring; 34. Loading block; 35. Storage cylinder; 36. Guide tube; 37. Guide frame. Detailed Implementation

[0036] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0037] Please see Figures 1 to 6 This invention provides a cold extrusion feeding mechanism for large-module spur gears, the technical solution of which is as follows:

[0038] A cold extrusion feeding mechanism for large-module spur gears includes a lower die 1 and a support 7; a mounting frame 2, fixedly mounted on the side wall of the lower die 1; a slide 3, slidably mounted on the top wall of the mounting frame 2; a clamping plate 4, slidably mounted on the side wall of the slide 3; a telescopic motor 5, fixedly mounted on the top of the support 7; an output rod 6, fixedly mounted on the output end of the telescopic motor 5, and the other end fixedly mounted on the side wall of the slide 3; and an automatic feeding mechanism, installed between the telescopic motor 5 and the slide 3.

[0039] An automatic feeding mechanism is used to assist in loading and unloading materials on the lower mold 1. After the material on the lower mold 1 is cold-pressed, it is automatically unloaded in a timely manner. At the same time as unloading, new materials to be formed are placed on the lower mold 1, which replaces manual operation, improves production efficiency, and enhances production safety.

[0040] As one embodiment of the present invention, refer to Figure 1 and Figure 2The automatic feeding mechanism includes a clamping component, a material detection component, a material release control component, an automatic unloading component, and an automatic replenishment component.

[0041] The clamping assembly is used for fixing and positioning during feeding, which can improve the stability and accuracy of feeding; the material detection assembly is used for feedback when the material falls between the two clamping plates 4, making the clamping more accurate; the material release control assembly is used to automatically release the two clamping plates 4 when the material is conveyed to a designated position on the lower mold 1, which further improves the accuracy of feeding and the quality of processing; the automatic unloading assembly can realize rapid unloading without manual operation, which further improves production efficiency; the automatic replenishment assembly is used to place new material between the two clamping plates 4 after the loading is completed, which further improves the continuity of production and improves production efficiency.

[0042] As one embodiment of the present invention, refer to Figures 2-5 The clamping assembly includes a slider 8 fixedly mounted on the clamping plate 4, a slide 9 matching the slider 8 on the slide 3, an electromagnet 10 fixedly inserted on each of the two sliders 8, two permanent magnets 11 symmetrically fixedly mounted on the inner walls of both sides of the slide 9, and an adjusting spring 12 connecting the two sliders 8.

[0043] The two clamping plates 4 are brought closer together by the attraction between the electromagnets 10, thereby clamping the material. The two permanent magnets 11 repel the two ends of the two electromagnets 10 respectively, which can enhance the clamping force and make the clamping better, thereby improving the stability of feeding and improving the quality of production.

[0044] As one embodiment of the present invention, refer to Figure 5 Guide grooves 13 are provided on the outer wall of the two clamping plates 4 that are close to each other.

[0045] The guide grooves 13 on the two clamping plates 4 are arc surfaces. Since the cold-pressed workpiece of the gear is a cylinder, the pressing action between the curved surfaces can drive the material to move during the clamping process of the clamping plates 4 clamping the material from both sides. This not only improves the stability of clamping, but also makes it easier to control the position of the material after clamping, which facilitates subsequent feeding.

[0046] As one embodiment of the present invention, refer to Figure 2 and Figure 6 The material detection component includes a feedback groove 14 opened on the top wall of the mounting frame 2, a detection block 15 is slidably installed in the feedback groove 14, a fixing frame 16 is fixedly installed in the feedback groove 14, two first reset springs 17 are connected between the fixing frame 16 and the detection block 15, and first contact electrodes 18 are fixedly installed on the outer wall of the detection block 15 and the fixing frame 16 on the side close to each other.

[0047] When the material falls onto the mounting frame 2, the material presses the detection block 15, and the detection block 15 moves into the feedback groove 14, so that the two first contact electrodes 18 make full contact, which connects the circuit of the telescopic motor 5. The telescopic motor 5 will push the slide 3 to move through the output rod 6, thereby driving the two clamping plates 4 and the material being held to move towards the lower mold 1. It is worth noting that the telescopic motor 5 reciprocates to drive the output rod 6 to move, that is, the output rod 6 makes a reciprocating uniform speed movement, thereby achieving the purpose of feeding, replacing the manual hand feeding method, and improving production efficiency and safety.

[0048] As one embodiment of the present invention, refer to Figure 4 and Figure 5 The material feeding control assembly includes two fixed tubes 20 symmetrically fixedly installed on the outer walls of both sides of the slide 3. Two spring rods 21 are symmetrically installed on the inner walls of both sides of the fixed tubes 20. A second contact electrode 22 is fixedly installed at one end of each spring rod 21 that is close to each other. Two circuit breakers 23 are symmetrically fixedly installed on the top wall of the mounting frame 2.

[0049] When the material reaches the center position of the lower mold 1, the two circuit breakers 23 are inserted into the two fixed tubes 20 and separate the two second contact electrodes 22. At this time, the circuit of the two electromagnets 10 is disconnected, the magnetic attraction between the two electromagnets 10 disappears, and the magnetic repulsion between the two permanent magnets 11 and the electromagnets 10 becomes a one-way attraction of the former to the latter, thereby causing the two clamping plates 4 to separate quickly, thus realizing automatic material feeding, replacing manual operation, and further improving production efficiency. It is worth noting that when the slide 3 is reset, the circuit breakers 23 separate from the fixed tubes 20. At this time, the second contact electrodes 22 are reconnected under the action of the spring rod 21, and the two clamping plates 4 close together. Since the two clamping plates 4 are brought closer together by the elastic force of the adjusting spring 12 and the magnetic force of the electromagnets 10, after the new material falls, the two clamping plates 4 can be opened by their own sides. The clamping function of the two clamping plates 4 is used to position the new material, making its feeding position more accurate, and the upper surface of the mounting frame 2 and the lower mold 1 are on the same horizontal plane.

[0050] As one embodiment of the present invention, refer to Figure 2 and Figure 5 The automatic unloading assembly includes two fixed plates 24 symmetrically fixedly installed on the side wall of the slide 3. Unloading plates 25 are rotatably installed on the outer wall of the two fixed plates 24 that are close to each other. Limit plates 26 are fixedly installed on the two fixed plates 24. Reset plates 27 are fixedly installed on the two fixed plates 24. Second reset springs 28 are connected between the two reset plates 27 and the two unloading plates 25 respectively. A guide frame 37 is fixedly installed on the outer wall of one side of the lower mold 1.

[0051] During the feeding process, the two unloading plates 25 first come into contact with the cold-pressed workpiece. Under the action of the limiting plate 26, the two unloading plates 25 can only rotate in one direction, thus pushing the workpiece off the lower mold 1 to complete the unloading. Then, a new workpiece to be processed is placed down. When the telescopic motor 5 moves the two unloading plates 25 back, the workpiece is heavy and will push the two unloading plates 25 to rotate until the unloading plates 25 lose contact with the workpiece. Under the action of the second return spring 28, the two unloading plates 25 complete the reset. The cycle repeats, and the unloading plates 25 can unload in one direction, replacing manual unloading and further improving production efficiency.

[0052] As one embodiment of the present invention, refer to Figure 1 The automatic feeding mechanism includes a piston cylinder 29 mounted above the telescopic motor 5, and the piston cylinder 29 is U-shaped. A first piston rod 30 and a second piston rod 31 are respectively movably inserted into both ends of the piston cylinder 29. A connecting rod 32 connects the first piston rod 30 and the output rod 6. A feeding block 34 is fixedly installed at one end of the second piston rod 31. A storage cylinder 35 is mounted above the mounting frame 2, and the feeding block 34 movably penetrates one side of the outer wall of the storage cylinder 35. A guide tube 36 is fixedly installed on the outer wall of the storage cylinder 35 away from the feeding block 34, and a discharge hole 19 is opened between the guide tube 36 and the storage cylinder 35.

[0053] When the telescopic motor 5 uses the output rod 6 to drive the slide 3 to reset, the connecting rod 32 drives the first piston rod 30 to move into the piston cylinder 29. The pressure pushes the second piston rod 31 out of the piston cylinder 29, thereby driving the loading block 34 to move into the storage cylinder 35, pushing the bottom workpiece into the guide tube 36. The workpiece falls onto the mounting frame 2 through the guide tube 36. Under the action of the guide tube 36, the falling position can be initially controlled, realizing automatic material replenishment, improving the continuity of production, and further improving production efficiency.

[0054] As one embodiment of the present invention, refer to Figure 1 Piston cylinder 29 is equipped with transmission fluid.

[0055] It is worth noting that the transmission fluid is located between the first piston rod 30 and the second piston rod 31, which can increase the transmission pressure between the two. The transmission fluid is not easily compressed, thereby further improving the stability of the transmission and the stability of the feeding.

[0056] As one embodiment of the present invention, refer to Figure 1 A third return spring 33 is fitted onto the second piston rod 31.

[0057] The third return spring 33 can increase the pressure of the second piston rod 31 on the transmission fluid. When the first piston rod 30 moves to the outside of the piston cylinder 29, the third return spring 33 can help the second piston rod 31 return to its original position more quickly, thereby completing the feeding work more stably and further improving production efficiency.

[0058] Working principle: The clamping component is used for fixing and positioning during feeding, which can improve the stability and accuracy of feeding; the material detection component is used for feedback when the material falls between the two clamping plates 4, making the clamping more accurate; the material release control component is used to automatically release the two clamping plates 4 when the material is conveyed to the designated position on the lower mold 1, which further improves the accuracy of feeding and the quality of processing; the automatic unloading component can realize rapid unloading without manual operation, which further improves production efficiency; the automatic replenishment component is used to place new material between the two clamping plates 4 after the loading is completed, which further improves the continuity of production and improves production efficiency.

[0059] The two clamping plates 4 are brought closer together by the attraction between the electromagnets 10, thereby clamping the material. The two permanent magnets 11 repel the two ends of the two electromagnets 10 respectively, which can enhance the clamping force and make the clamping more secure, thereby improving the stability of feeding and improving the quality of production.

[0060] The guide grooves 13 on the two clamping plates 4 are arc surfaces. Since the cold-pressed workpiece of the gear is a cylinder, the pressing action between the curved surfaces can drive the material to move during the clamping process of the clamping plates 4 clamping the material from both sides. This not only improves the stability of clamping, but also makes it easier to control the position of the material after clamping, which facilitates subsequent feeding.

[0061] When the material falls onto the mounting frame 2, the material presses the detection block 15, and the detection block 15 moves into the feedback groove 14, so that the two first contact electrodes 18 make full contact, which connects the circuit of the telescopic motor 5. The telescopic motor 5 will push the slide 3 to move through the output rod 6, thereby driving the two clamping plates 4 and the material being held to move towards the lower mold 1. It is worth noting that the telescopic motor 5 reciprocates to drive the output rod 6 to move, that is, the output rod 6 makes a reciprocating uniform speed movement, thereby achieving the purpose of feeding, replacing the manual hand feeding method, and improving production efficiency and safety.

[0062] When the material reaches the center of the lower mold 1, the two circuit breakers 23 are inserted into the two fixed tubes 20 and separate the two second contact electrodes 22. At this time, the circuit of the two electromagnets 10 is broken, the magnetic attraction between the two electromagnets 10 disappears, and the magnetic repulsion between the two permanent magnets 11 and the electromagnets 10 becomes a one-way attraction of the former to the latter, thereby causing the two clamping plates 4 to separate quickly, thus realizing automatic material feeding, replacing manual operation, and further improving production efficiency.

[0063] During the feeding process, the two unloading plates 25 first come into contact with the cold-pressed workpiece. Under the action of the limiting plate 26, the two unloading plates 25 can only rotate in one direction, thus pushing the workpiece off the lower mold 1 to complete the unloading. Then, a new workpiece to be processed is placed down. When the telescopic motor 5 moves the two unloading plates 25 back, the workpiece is heavy and will push the two unloading plates 25 to rotate until the unloading plates 25 lose contact with the workpiece. Under the action of the second return spring 28, the two unloading plates 25 complete the reset. The cycle repeats, and the unloading plates 25 can unload in one direction, replacing manual unloading and further improving production efficiency.

[0064] When the telescopic motor 5 uses the output rod 6 to drive the slide 3 to reset, the connecting rod 32 drives the first piston rod 30 to move into the piston cylinder 29. The pressure pushes the second piston rod 31 out of the piston cylinder 29, thereby driving the loading block 34 to move into the storage cylinder 35, pushing the bottom workpiece into the guide tube 36. The workpiece falls onto the mounting frame 2 through the guide tube 36. Under the action of the guide tube 36, the falling position can be initially controlled, realizing automatic material replenishment, improving the continuity of production, and further improving production efficiency.

[0065] All electrical components mentioned in this article are connected to an external main controller and 220V AC mains power via transformers. The main controller can be a conventional known device such as a computer for control. The product models provided in this invention are only for use based on the structural features of the product in this technical solution. The product will be adjusted and modified after purchase to better match and conform to the technical solution of this invention. It is an optimal application of this technical solution. The product models can be replaced and modified according to the required technical parameters. This is well known to those skilled in the art. Therefore, those skilled in the art can clearly obtain the corresponding usage effects through the technical solution provided by this invention.

[0066] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A cold extrusion feeding mechanism for large-module spur gears, comprising a lower die (1) and a support (7), characterized in that: Mounting bracket (2) is fixedly mounted on the side wall of the lower mold (1); slide (3) is slidably mounted on the top wall of mounting bracket (2); clamp (4) is slidably mounted on the side wall of slide (3); telescopic motor (5) is fixedly mounted on the top of bracket (7); output rod (6) is fixedly mounted on the output end of telescopic motor (5), and the other end is fixedly mounted on the side wall of slide (3); automatic feeding mechanism is installed between telescopic motor (5) and slide (3); The automatic feeding mechanism includes a clamping component, a material detection component, a material release control component, an automatic unloading component, and an automatic replenishment component; The clamping assembly includes a slider (8) fixedly installed on the clamping plate (4), and a slide groove (9) matching the slider (8) is provided on the slide frame (3). Electromagnets (10) are fixedly inserted on both sliders (8). Two permanent magnets (11) are symmetrically fixedly installed on the inner walls of both sides of the slide groove (9). An adjusting spring (12) is connected between the two sliders (8). The material detection assembly includes a feedback groove (14) opened on the top wall of the mounting frame (2), a detection block (15) is slidably installed in the feedback groove (14), a fixing frame (16) is fixedly installed in the feedback groove (14), two first reset springs (17) are connected between the fixing frame (16) and the detection block (15), and first contact electrodes (18) are fixedly installed on the outer wall of the detection block (15) on the side close to the fixing frame (16); When the material falls onto the mounting frame (2), the material presses the detection block (15), and the detection block (15) moves into the feedback groove (14). When the two first contact electrodes (18) are in full contact, the circuit of the telescopic motor (5) is connected, and the telescopic motor (5) pushes the slide (3) to move through the output rod (6). The control feeding assembly includes two fixed tubes (20) symmetrically fixedly installed on the outer walls of both sides of the slide (3). Two spring rods (21) are symmetrically installed on the inner walls of both sides of the fixed tubes (20). A second contact electrode (22) is fixedly installed at one end of each of the two spring rods (21) close to each other. Two circuit breakers (23) are symmetrically fixedly installed on the top wall of the mounting frame (2). When the material reaches the center position of the lower mold (1), the two circuit breakers (23) will be inserted into the two fixed tubes (20) and separate the two second contact electrodes (22). At this time, the circuit of the two electromagnets (10) is disconnected, the magnetic attraction between the two electromagnets (10) disappears, and the two clamps (4) are quickly separated, thereby realizing automatic feeding. The automatic unloading assembly includes two fixed plates (24) symmetrically fixedly installed on the side wall of the slide (3). Unloading plates (25) are rotatably installed on the outer wall of the two fixed plates (24) that are close to each other. Limit plates (26) are fixedly installed on the two fixed plates (24). Reset plates (27) are fixedly installed on the two fixed plates (24). Second reset springs (28) are connected between the two reset plates (27) and the two unloading plates (25) respectively. A guide frame (37) is fixedly installed on one side of the outer wall of the lower mold (1). The automatic feeding assembly includes a piston cylinder (29) mounted above the telescopic motor (5), and the piston cylinder (29) is U-shaped. A first piston rod (30) and a second piston rod (31) are movably inserted into both ends of the piston cylinder (29). A connecting rod (32) connects the first piston rod (30) and the output rod (6). A feeding block (34) is fixedly installed at one end of the second piston rod (31). A storage cylinder (35) is mounted above the mounting frame (2), and the feeding block (34) movably penetrates one side of the outer wall of the storage cylinder (35). A guide tube (36) is fixedly installed on the outer wall of the storage cylinder (35) away from the feeding block (34), and a discharge hole (19) is opened between the guide tube (36) and the storage cylinder (35).

2. The cold extrusion feeding mechanism for large module spur gears according to claim 1, characterized in that: Guide grooves (13) are provided on the outer wall of the two clamping plates (4) that are close to each other.

3. The cold extrusion feeding mechanism for large module spur gears according to claim 1, characterized in that: The piston cylinder (29) is equipped with transmission fluid.

4. The cold extrusion feeding mechanism for large module spur gears according to claim 1, characterized in that: A third return spring (33) is fitted onto the second piston rod (31).

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