Punching die provided with positioning mechanism and used for machining automobile gear forgings

Abstract

The invention discloses an automobile gear forge piece machining punching die with a positioning mechanism, and relates to the technical field of gear forge piece machining, the automobile gear forge piece machining punching die comprises a fixed bottom die and a movable top die, a four-way clamping mechanism is installed at the bottom of the fixed bottom die, and a gear base material is clamped and positioned on the inner side of the four-way clamping mechanism; a through hole is formed in the center of the fixed bottom die, a flange connecting disc is fixedly installed on the top of the movable top die, and a punch is fixedly installed in the center of the bottom of the movable top die. According to the gear base material punching device, stable clamping and positioning can be conducted in the four directions of a gear base material through the arrangement of the four-direction clamping mechanism, a clamping base and the gear base material can make buffer type contact through the arrangement of a high-strength spring in the four-direction clamping mechanism, and deformation extrusion force generated in the punching process of the gear base material can be buffered advantageously; damage to the four-way clamping mechanism is avoided, and the positioning stability and the positioning buffering effect of the four-way clamping mechanism on the gear base material are improved.

Description

Technical Field

[0001] The invention relates to the technical field of gear forging processing, in particular to a punching die with a positioning mechanism for processing automobile gear forgings. Background Art

[0002] Gears refer to mechanical components with gears on the wheel rim that continuously mesh to transmit motion and power. In the process of automobile production, gears are usually needed for stable transmission. In the process of processing automobile gears, it is usually necessary to make a hole in the center of the gear base material. The commonly used hole making method is to heat the gear base material at high temperature and then punch it through a punching die to ensure the efficiency and effect of the punching.

[0003] However, the existing punching dies for gear workers still have certain defects when used; For example, an automatic punching machine for gear processing proposed in application number CN202323208983.1 includes a carrier, a punching part and a clamping part; wherein the punching part is used to punch holes of different apertures; the clamping part is used to clamp and fix gear blanks of different sizes; the punching part includes a first electric push rod, one side of the first electric push rod is fixedly connected to a connecting plate, one side of the connecting plate is provided with a middle hole, and a limit ring is fixedly provided inside the middle hole. The advantages of this application are: in this application, a punching part and a clamping part are provided, and gear blanks of different sizes are clamped and fixed by the clamping part, and the extension size of the third electric push rod is fed back to the PLC controller, and the punching part is instructed by the PLC controller to adjust a plurality of punching heads of different specifications installed on the round block, and the appropriate punching head is adjusted to the top of the gear blank for punching operation. In actual use, the following problems still exist: 1. The automatic punching machine for gear processing clamps and positions the gear base material through the clamping part, and each clamping mechanism in the clamping part needs to be controlled by a separate electric push rod, so it needs to be driven by multiple drive sources, and it is impossible to achieve linkage and synchronous clamping of multiple clamping mechanisms, which reduces the utilization effect of drive resources. At the same time, the gear base material itself will produce a small range of deformation during the punching process, and the rigid structure of the clamping part in the automatic punching machine for gear processing cannot offset the deformation of the gear base material, causing damage to the electric push rod; 2. After punching the gear base material, the automatic punching machine for gear processing does not have a recycling mechanism for the waste generated by punching and cutting, which makes it inconvenient to easily recycle the high-temperature waste generated. The subsequent high-temperature waste is not cooled or recycled by natural cooling, which will easily cause safety hazards and affect the punching efficiency of the gear base material.

[0004] In view of this, we conducted in-depth research on the above issues, which led to the present case.

[0005] In view of the above problems, an innovative design is carried out on the basis of the original punching die for processing automobile gear forgings with a positioning mechanism. Summary of the invention

[0006] The purpose of the present invention is to provide a punching die for processing automobile gear forgings with a positioning mechanism, so as to solve the problems raised in the above background technology that the linkage synchronization effect of the existing clamping mechanism is reduced, the gear base material is easily damaged by deformation during the punching process, and it is inconvenient to recycle the high-temperature waste generated after punching.

[0007] To achieve the above object, the present invention provides the following technical solution: a punching die for processing automobile gear forgings with a positioning mechanism, comprising a fixed bottom die and a movable top die, A four-way clamping mechanism is installed at the bottom of the fixed bottom mold, and the gear base material is clamped and positioned inside the four-way clamping mechanism; A through hole is provided at the center of the fixed bottom mold; A flange connection plate is fixedly installed on the top of the movable top die, and a punch is fixedly installed at the bottom center of the movable top die; The bottom of the fixed bottom mold is connected with a recovery and filtering mechanism; Piston cooling mechanisms are installed on both sides of the recovery and filtering mechanism, and the top of the piston cooling mechanism is connected to the movable top mold.

[0008] Preferably, the four-way clamping mechanism includes a limit frame arranged at an equiangular angle at the bottom of the fixed bottom mold, and the limit frame is provided with four groups, and connecting angle plates are fixedly installed on both sides of each group of the limit frames, and the top of the connecting angle plates is fixedly connected to the fixed bottom mold bolts, and fixed bearings are inlaid and installed inside the two ends of each group of the limit frames, and the inner ring of the fixed bearing is fixedly connected to a transmission screw, and a knob is fixedly sleeved on the end of the transmission screw away from the fixed bottom mold, and an active bevel gear is fixedly installed on the end of the transmission screw close to the fixed bottom mold, and the top of the active bevel gear is meshingly connected with a driven bevel gear ring, and the top of the driven bevel gear ring is fixedly connected with a connecting shaft seat, and the connecting shaft seat is engaged and connected with the bottom of the fixed bottom mold.

[0009] Preferably, the transmission screw is rotationally connected to the limit frame via a fixed bearing, the active bevel gears are distributed at equal angles on the bottom of the driven bevel gear ring, and the driven bevel gear ring is rotationally connected to the bottom of the fixed bottom mold via a connecting shaft seat.

[0010] The above technical solution is adopted to facilitate the linkage and synchronous transmission of the four sets of transmission screws through the meshing connection of the active bevel gear and the driven bevel gear ring, so that when any one set of transmission screws is rotated, it can be driven to rotate synchronously with the three sets of transmission screws, which is beneficial to the synchronous clamping and positioning of the gear base material in four directions, avoiding waste caused by excessive utilization of driving resources, and improving the structural linkage and operational convenience of clamping and positioning.

[0011] Preferably, the four-way clamping mechanism also includes a movable block sleeved on the outer ring of the transmission screw located inside the limit frame, a connecting seat is fixedly installed on the top of the movable block, a limiting plate is fixedly installed on the top of the connecting seat, limiting grooves are symmetrically provided inside the limiting plate, a telescopic rod is slidably connected inside the limiting groove, a high-strength spring is connected between the telescopic rod and the limit groove, and a clamping seat is fixedly installed on the end of the telescopic rod close to the through hole.

[0012] Preferably, the connecting seat is arranged in an "L"-shaped structure, and the telescopic rod forms a telescopic structure through a high-strength spring and a limiting groove.

[0013] By adopting the above technical solution, the telescopic structure therein can be used to buffer the deformation of the gear base material produced during the punching process, which can avoid damage caused by rigid direct clamping and is conducive to extending the service life of the four-way clamping mechanism.

[0014] Preferably, the recovery and filtering mechanism includes a connecting bracket symmetrically installed on the bottom of the fixed bottom mold, the bottom end of the connecting bracket is fixedly connected to a collecting frame, the bottom inner circle of the collecting frame is fixedly installed with a filter plate, the bottom end of the collecting frame is fixedly installed with a collecting bucket, the bottom end of the collecting bucket is fixedly installed with a storage box, and supporting angle plates are connected at equal angles between the top surface of the storage box and the outer surface of the collecting bucket, and four groups of supporting angle plates are provided.

[0015] The above technical solution is adopted to facilitate the effective collection of high-temperature waste generated in the punching process through the recovery and filtering mechanism in conjunction with the through holes. There is no need to carry out separate unloading of the waste, thus avoiding safety hazards in the unloading process. At the same time, the setting of the recovery and filtering mechanism can also filter the cooling water and recycle it for reuse, thus avoiding the waste of cooling resources and improving the environmental protection effect.

[0016] Preferably, the piston cooling mechanism includes a fixed bracket fixedly installed on the outside of the connecting brackets on both sides, the inner side of the fixed bracket is fixedly connected to a piston housing, a positioning bearing is inlaid and installed inside the piston housing at one end close to the connecting bracket, the inner ring of the positioning bearing is fixedly connected to a driven screw, the outer ring of the driven screw located inside the piston housing is sleeved with a sliding seat, the outer ring of the sliding seat is fixedly sleeved with a piston plate, the outer ring of the piston plate is tightly fitted and slidably connected to the inner wall of the piston housing, and the driven screw is fixedly sleeved with a driven gear at one end close to the connecting bracket.

[0017] Preferably, the piston cooling mechanism further comprises positioning plates fixedly mounted on both sides of the movable top mold, lifting bars are fixedly mounted on both sides of the positioning plates, and a driving gear block is fixedly mounted on the inner side of the lifting bar on the front side.

[0018] Preferably, the driving tooth blocks are installed at equal intervals on the inner side of the lifting bar at the front side, and the lifting bar forms a meshing transmission structure with a driven gear through the driving tooth blocks.

[0019] Preferably, the piston cooling mechanism also includes a one-way liquid inlet valve and a one-way water outlet valve embedded in the bottom of the piston housing near one end of the connecting bracket, the bottom end of the one-way liquid inlet valve is fixedly connected to a connecting pipe, the bottom end of the connecting pipe is connected to the storage box, the bottom end of the one-way water outlet valve is fixedly connected to a diversion pipe, the water outlet end of the diversion pipe is fixedly connected to a nozzle, and the nozzle is fixedly connected to the connecting bracket.

[0020] The adoption of the above technical scheme is conducive to the kinetic energy generated by the piston cooling mechanism Li Yonggang's movable top mold during the lifting process, and to the driven piston movement. It is beneficial to use the piston cooling mechanism to extract cooling water inside the storage box when the movable top mold descends, and it is also beneficial to spray out the extracted cooling water when the movable top mold rises to achieve the cooling of the collected high-temperature waste, thereby improving the cooling and recovery efficiency of the high-temperature waste, and at the same time avoiding safety hazards in the subsequent recovery process of the high-temperature waste, thereby improving the safety of use.

[0021] Compared with the prior art, the present invention has the following beneficial effects: the punching die for automobile gear forging processing with a positioning mechanism, the arrangement of the four-way clamping mechanism can stably clamp and position the gear base material from four directions, and the arrangement of the high-strength spring in the four-way clamping mechanism can make the clamping seat and the gear base material have a buffering contact, which is beneficial to buffer the deformation extrusion force generated by the gear base material during the punching process, avoids damage to the four-way clamping mechanism, and improves the positioning stability and positioning buffering effect of the four-way clamping mechanism on the gear base material; The setting of the recovery and filtering mechanism and the setting of the through hole can collect the high-temperature waste after the punching of the gear base material, and facilitate the continuous punching of the gear base material, without the need to separately discharge the generated high-temperature waste. At the same time, the setting of the recovery and filtering mechanism can also filter and recycle the cooling water of the high-temperature waste during the cooling process, thereby improving the environmental protection effect; The movable top mold can drive the piston cooling mechanism to perform piston movement during the lifting process, which is beneficial for the piston cooling mechanism to extract cooling water stored in the storage box when descending, and can spray the extracted cooling water when rising, so as to effectively water-cool the high-temperature waste collected on the filter plate and quickly cool it down, which is beneficial to prevent safety hazards in the process of waste recycling and improve the safety of use and the convenience of waste recycling. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a side view structural schematic diagram of the present invention; Figure 2 This is a schematic diagram of the docking structure of the fixed bottom mold and the movable top mold of the present invention; Figure 3 It is a schematic diagram of the side section of the fixed bottom mold and the distribution structure of the four-way clamping mechanism of the present invention; Figure 4 It is a schematic diagram of the transmission structure of the driving bevel gear and the driven bevel gear ring of the present invention; Figure 5 It is a schematic diagram of the connection structure between the transmission screw and the movable block of the present invention; Figure 6 It is a schematic diagram of the side section structure of the limiting plate of the present invention; Figure 7 This is a schematic diagram of the connection structure of the recovery and filtering mechanism and the piston cooling mechanism of the present invention; Figure 8 It is a schematic diagram of the side section structure of the recovery and filtration mechanism of the present invention; Fig. 9 It is a side view structural schematic diagram of the piston cooling mechanism of the present invention; Fig.10 It is a schematic diagram of the side section structure of the piston box of the present invention.

[0023] In the figure: 1. Fixed bottom die; 2. Limiting frame; 3. Connecting angle plate; 4. Fixed bearing; 5. Transmission screw; 6. Knob; 7. Active bevel gear; 8. Driven bevel gear ring; 9. Connecting shaft seat; 10. Movable block; 11. Connecting seat; 12. Limiting plate; 13. Limiting groove; 14. Telescopic rod; 15. High-strength spring; 16. Clamping seat; 17. Through hole; 18. Gear base material; 19. Movable top die; 20. Flange connection plate; 21. Punch; 2 2. Connecting bracket; 23. Collecting frame; 24. Filter plate; 25. Collecting bucket; 26. Storage box; 27. Support angle plate; 28. Fixed bracket; 29. ​​Piston housing; 30. Positioning bearing; 31. Driven screw; 32. Sliding seat; 33. Piston plate; 34. Driven gear; 35. Positioning plate; 36. Lifting bar; 37. Driving gear block; 38. One-way liquid inlet valve; 39. Connecting pipe; 40. One-way water outlet valve; 41. Diverter pipe; 42. Sprinkler. DETAILED DESCRIPTION

[0024] 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.

[0025] See also Figure 1-10 The present invention provides a technical solution: a punching die for processing automobile gear forgings with a positioning mechanism, comprising a fixed bottom die 1 and a movable top die 19, a four-way clamping mechanism is installed at the bottom of the fixed bottom die 1, a gear base material 18 is clamped and positioned inside the four-way clamping mechanism, the four-way clamping mechanism comprises a limit frame 2 arranged at an equal angle at the bottom of the fixed bottom die 1, the limit frame 2 is provided with four groups, and connecting angle plates 3 are fixedly installed on both sides of each group of limit frames 2, the top of the connecting angle plates 3 is fixedly connected to the fixed bottom die 1 with bolts, and fixed bearings 4 are embedded and installed inside the two ends of each group of limit frames 2, and the fixed bearings The inner ring of 4 is fixedly connected with a transmission screw 5, which is rotationally connected with the limit frame 2 through the fixed bearing 4, and the end of the transmission screw 5 away from the fixed bottom mold 1 is fixedly sleeved with a knob 6, and the end of the transmission screw 5 close to the fixed bottom mold 1 is fixedly installed with an active bevel gear 7, and the top of the active bevel gear 7 is meshedly connected with a driven bevel gear ring 8, and the active bevel gear 7 is distributed at equal angles at the bottom of the driven bevel gear ring 8, and the top of the driven bevel gear ring 8 is fixedly connected with a connecting shaft seat 9, and the connecting shaft seat 9 is engaged with the bottom of the fixed bottom mold 1, and the driven bevel gear ring 8 is rotationally connected with the bottom of the fixed bottom mold 1 through the connecting shaft seat 9; The four-way clamping mechanism also includes a movable block 10 sleeved on the outer ring of the transmission screw 5 located inside the limit frame 2, a connecting seat 11 is fixedly installed on the top of the movable block 10, and the connecting seat 11 is arranged in an "L"-shaped structure, a limiting plate 12 is fixedly installed on the top of the connecting seat 11, and a limiting groove 13 is symmetrically provided inside the limiting plate 12, and a telescopic rod 14 is slidably connected inside the limiting groove 13, and a high-strength spring 15 is connected between the telescopic rod 14 and the limiting groove 13, and the telescopic rod 14 forms a telescopic structure with the limiting groove 13 through the high-strength spring 15, and a clamping seat 16 is fixedly installed on one end of the telescopic rod 14 near the through hole 17; The design of the above structure enables the corresponding transmission screw 5 to rotate by rotating any knob 6, and then the transmission screw 5 can rotate inside the corresponding limit frame 2 through the fixed bearing 4. At this time, the transmission screw 5 drives the corresponding active bevel gear 7 to rotate, and cooperates with the meshing connection with the driven bevel gear ring 8 so that the driven bevel gear ring 8 rotates at the bottom of the fixed bottom mold 1 through the connecting shaft seat 9, and can drive the remaining three groups of active bevel gears 7 and the transmission screw 5 to rotate. At this time, the rotation of the transmission screw 5 can drive the movable block 10 to slide inside the limit frame 2, and can cooperate with the connecting seat 11 to drive the limit plate 12, the limit groove 13, the telescopic rod 14, the high-strength spring 15 and the clamping seat 16 to move inward or outward, which is conducive to releasing the limit of the gear base material 18 when moving outward, realizing the unloading and loading of the gear base material 18, and at the same time is conducive to clamping and positioning the gear base material 18 when moving inward; When the gear base material 18 is deformed during the punching process, the deformation pressure generated will act on the clamping seat 16, and then the clamping seat 16 will drive the telescopic rod 14 to slide inside the limiting groove 13. During the sliding process, the high-strength spring 15 can buffer the extrusion force to avoid damage caused by rigid direct clamping, thereby improving the use effect and operating convenience.

[0026] A through hole 17 is provided at the center of the fixed bottom mold 1, a flange connection plate 20 is fixedly installed on the top of the movable top mold 19, a punch 21 is fixedly installed at the bottom center of the movable top mold 19, a recovery and filtering mechanism is connected to the bottom of the fixed bottom mold 1, and the recovery and filtering mechanism includes a connecting bracket 22 symmetrically installed at the bottom of the fixed bottom mold 1, a collecting frame 23 is fixedly connected to the bottom end of the connecting bracket 22, a filter plate 24 is fixedly installed on the bottom inner circle of the collecting frame 23, a collecting bucket 25 is fixedly installed at the bottom end of the collecting frame 23, a storage box 26 is fixedly installed at the bottom end of the collecting bucket 25, and a supporting angle plate 27 is connected at an equal angle between the top surface of the storage box 26 and the outer side surface of the collecting bucket 25, and four groups of supporting angle plates 27 are provided; The design of the above structure enables the movable top die 19 to be fixedly connected to the hydraulic device through the flange connecting plate 20, and then when the hydraulic device drives the flange connecting plate 20, the movable top die 19 and the punch 21 to descend, the gear base material 18 can be hydraulically punched, and the waste generated during the punching process will fall onto the filter plate 24 inside the collection frame 23 through the through hole 17. When the waste is cooled by cooling water, the generated waste water is filtered through the filter plate 24 to remove the residue, and the filtered cooling water will be stored in the storage box 26 through the collecting hopper 25, so as to realize the recycling of cooling water, wherein the setting of the connecting bracket 22 can stably install the collection frame 23.

[0027] A piston cooling mechanism is installed on both sides of the recovery and filtering mechanism. The top of the piston cooling mechanism is connected to the movable top mold 19. The piston cooling mechanism includes a fixed bracket 28 fixedly installed on the outside of the connecting brackets 22 on both sides. The inner side of the fixed bracket 28 is fixedly connected to a piston box 29. A positioning bearing 30 is embedded and installed inside the piston box 29 at one end close to the connecting bracket 22. The inner ring of the positioning bearing 30 is fixedly connected to a driven screw 31. The outer ring of the driven screw 31 located inside the piston box 29 is sleeved with a slide seat 32. The outer ring of the slide seat 32 is fixedly sleeved with The piston plate 33, the outer ring of the piston plate 33 is tightly fitted and slidably connected to the inner wall of the piston box 29, the driven screw 31 is fixedly sleeved with a driven gear 34 at one end close to the connecting bracket 22, and the piston cooling mechanism also includes a positioning plate 35 fixedly installed on both sides of the movable top mold 19, and lifting bars 36 are fixedly installed on both sides of the positioning plate 35. The inner side of the front lifting bar 36 is fixedly installed with a driving tooth block 37, and the driving tooth block 37 is installed at an equal interval on the inner side of the front lifting bar 36. The lifting bar 36 forms a meshing transmission structure with the driven gear 34 through the driving tooth block 37; The piston cooling mechanism also includes a one-way liquid inlet valve 38 and a one-way water outlet valve 40 embedded in the bottom of the piston housing 29 near the connecting bracket 22. The bottom end of the one-way liquid inlet valve 38 is fixedly connected to a connecting pipe 39, and the bottom end of the connecting pipe 39 is connected to the storage box 26. The bottom end of the one-way water outlet valve 40 is fixedly connected to a shunt pipe 41, and the water outlet end of the shunt pipe 41 is fixedly connected to a nozzle 42, and the nozzle 42 is fixedly connected to the connecting bracket 22. The design of the above structure enables the movable top mold 19 to cooperate with the positioning plate 35 to drive the lifting bar 36 and the driving gear block 37 to be lifted synchronously when the movable top mold 19 is lifted. Then the movement of the driving gear block 37 will utilize the meshing with the driven gear 34 to drive the driven gear 34 to rotate forward and reversely, and then the driven gear 34 will drive the corresponding driven screw 31 to rotate forward and reversely inside the piston box 29 through the positioning bearing 30. When the driven screw 31 rotates forward and reversely, it can drive the slide seat 32 and the piston plate 33 to move inward and outward inside the piston box 29. When the movable top mold 19 is lowered, the piston plate 33 will When moving outward, the cooling water inside the storage box 26 can be extracted through the one-way liquid inlet valve 38 and the connecting pipe 39 and stored in the piston box body 29. When the movable top mold 19 rises, the piston plate 33 will move inward, and the cooling water stored in the piston box body 29 will be transported to the inside of the diverter pipe 41 and the nozzle 42 through the one-way water outlet valve 40, and sprayed out through the nozzle 42 to quickly cool down the high-temperature waste on the filter plate 24, thereby improving the structural linkage between the high-temperature waste cooling process and the movable top mold 19 lifting process. The setting of the fixed bracket 28 can stably install the piston box body 29.

[0028] The contents not described in detail in this specification belong to the prior art known to professional and technical personnel in this field.

[0029] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A punching die for machining automobile gear forgings having a positioning mechanism, comprising a fixed bottom die (1) and a movable top die (19), Features: A four-way clamping mechanism is installed at the bottom of the fixed bottom mold (1), and a gear base material (18) is clamped and positioned inside the four-way clamping mechanism; A through hole (17) is provided at the center of the fixed bottom mold (1); A flange connection plate (20) is fixedly mounted on the top of the movable top die (19), and a punch (21) is fixedly mounted at the center of the bottom of the movable top die (19); The bottom of the fixed bottom mold (1) is connected to a recovery and filtering mechanism; Piston cooling mechanisms are installed on both sides of the recovery and filtering mechanism, and the top of the piston cooling mechanism is connected to the movable top mold (19).

2. A punching die for automobile gear forgings with a positioning mechanism according to claim 1, Features: The four-way clamping mechanism comprises a limit frame (2) arranged at an equal angle at the bottom of the fixed bottom mold (1), wherein the limit frame (2) is provided with four groups, and connecting angle plates (3) are fixedly installed on both sides of each group of the limit frames (2), and the top of the connecting angle plates (3) is fixedly connected to the fixed bottom mold (1) by bolts, and fixed bearings (4) are embedded and installed inside the two ends of each group of the limit frames (2), and the inner ring of the fixed bearing (4) is fixedly connected with a transmission screw (5), and the end of the transmission screw (5) away from the fixed bottom mold (1) is fixedly sleeved with a knob (6), and the end of the transmission screw (5) close to the fixed bottom mold (1) is fixedly installed with an active bevel gear (7), and the top of the active bevel gear (7) is meshingly connected with a driven bevel gear ring (8), and the top of the driven bevel gear ring (8) is fixedly connected with a connecting shaft seat (9), and the connecting shaft seat (9) is engaged and connected with the bottom of the fixed bottom mold (1).

3. A punching die for automobile gear forgings with a positioning mechanism according to claim 2, Features: The transmission screw (5) is rotatably connected to the limiting frame (2) via a fixed bearing (4); the active bevel gear (7) is distributed at equal angles at the bottom of the driven bevel gear ring (8); and the driven bevel gear ring (8) is rotatably connected to the bottom of the fixed bottom mold (1) via a connecting shaft seat (9).

4. A punching die for automobile gear forgings with a positioning mechanism according to claim 3, Features: The four-way clamping mechanism also includes a movable block (10) sleeved on the outer ring of the driving screw (5) located inside the limiting frame (2), a connecting seat (11) being fixedly mounted on the top of the movable block (10), a limiting plate (12) being fixedly mounted on the top of the connecting seat (11), limiting grooves (13) being symmetrically provided inside the limiting plate (12), a telescopic rod (14) being slidably connected inside the limiting groove (13), a high-strength spring (15) being connected between the telescopic rod (14) and the limiting groove (13), and a clamping seat (16) being fixedly mounted on one end of the telescopic rod (14) close to the through hole (17).

5. A punching die for automobile gear forgings with a positioning mechanism according to claim 4, Features: The connecting seat (11) is arranged in an "L"-shaped structure, and the telescopic rod (14) forms a telescopic structure through a high-strength spring (15) and a limiting groove (13).

6. A punching die for automobile gear forgings with a positioning mechanism according to claim 1, Features: The recovery and filtering mechanism comprises a connecting bracket (22) symmetrically mounted on the bottom of a fixed bottom mold (1); a collecting frame (23) is fixedly connected to the bottom end of the connecting bracket (22); a filter plate (24) is fixedly mounted on the inner circle of the bottom of the collecting frame (23); a collecting bucket (25) is fixedly mounted on the bottom end of the collecting frame (23); a storage box (26) is fixedly mounted on the bottom end of the collecting bucket (25); a supporting angle plate (27) is connected at an equal angle between the top surface of the storage box (26) and the outer side surface of the collecting bucket (25); and four groups of the supporting angle plates (27) are provided.

7. A punching die for automobile gear forgings with a positioning mechanism according to claim 6, Features: The piston cooling mechanism comprises a fixed bracket (28) fixedly mounted on the outside of the connecting brackets (22) on both sides, the inner side of the fixed bracket (28) is fixedly connected to a piston housing (29), a positioning bearing (30) is embedded and mounted inside one end of the piston housing (29) close to the connecting bracket (22), the inner ring of the positioning bearing (30) is fixedly connected to a driven screw (31), the outer ring of the driven screw (31) located inside the piston housing (29) is sleeved with a sliding seat (32), the outer ring of the sliding seat (32) is fixedly sleeved with a piston plate (33), the outer ring of the piston plate (33) is tightly fitted and slidably connected to the inner wall of the piston housing (29), and the end of the driven screw (31) close to the connecting bracket (22) is fixedly sleeved with a driven gear (34).

8. A punching die for automobile gear forgings with a positioning mechanism according to claim 7, Features: The piston cooling mechanism further comprises positioning plates (35) fixedly mounted on both sides of the movable top mold (19), lifting bars (36) fixedly mounted on both sides of the positioning plates (35), and a driving gear block (37) fixedly mounted on the inner side of the front lifting bar (36).

9. A punching die for automobile gear forgings with a positioning mechanism according to claim 8, Features: The driving tooth blocks (37) are installed at equal intervals on the inner side of the front lifting bar (36), and the lifting bar (36) forms a meshing transmission structure with the driven gear (34) through the driving tooth blocks (37).

10. A punching die for automobile gear forgings with a positioning mechanism according to claim 9, Features: The piston cooling mechanism further comprises a one-way liquid inlet valve (38) and a one-way water outlet valve (40) which are embedded in the bottom of one end of the piston housing (29) close to the connecting bracket (22); the bottom end of the one-way liquid inlet valve (38) is fixedly connected to a connecting pipe (39); the bottom end of the connecting pipe (39) is connected to the storage box (26); the bottom end of the one-way water outlet valve (40) is fixedly connected to a diverter pipe (41); the water outlet end of the diverter pipe (41) is fixedly connected to a nozzle (42); the nozzle (42) is fixedly connected to the connecting bracket (22).

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