Automatic deburring stamping die

Abstract

This invention relates to the technical field of stamping dies, and more particularly to an automatic deburring stamping die. It includes: an upper die; a lower die, disposed directly below the upper die; a mounting frame connected to the lower die; a first sliding frame slidably connected to the inside of the mounting frame; and a second sliding frame slidably connected to the inside of the mounting frame. The second sliding frame slides in contact with the first sliding frame, and both the second and first sliding frames have symmetrically formed cavities and grooves. This invention uses a first drive motor to drive a crankshaft, which in turn drives the first and second sliding frames to reciprocate. This allows a grinding plate connected to the crankshaft to automatically grind and remove burrs from the sides of the stamped workpiece. Simultaneously, a chamfering assembly can grind and remove burrs from the edges of round holes on the workpiece. Thus, deburring is automatically completed during the workpiece unloading process, eliminating the need for additional manual labor or specialized equipment, shortening the entire production cycle, and improving overall production efficiency.

Description

Technical Field

[0001] This invention relates to the technical field of stamping dies, and more particularly to a stamping die with automatic deburring capability. Background Technology

[0002] In modern manufacturing, stamping is a highly efficient and precise processing method that is widely used in many fields such as automobiles, electronics, and home appliances. Through stamping, metal sheets can be quickly processed into the required shapes and sizes to meet the needs of different industries for parts.

[0003] However, in actual production, after the stamping die forms the workpiece, burrs often appear on the sheared surface of the workpiece. These burrs not only affect the appearance quality of the product, but more importantly, they may reduce the functionality and safety of the parts, especially in applications requiring high precision. Currently, there are generally two methods for dealing with burrs on stamped workpieces: manual removal and the use of specialized deburring equipment. While manual deburring is flexible and can be adjusted for different burr conditions, this method is inefficient and highly dependent on the operator's experience and skill level, making it prone to errors. Using specialized deburring equipment can improve efficiency to some extent and reduce errors caused by human factors, but this requires additional investment costs and increases the complexity of the production line. Furthermore, both manual and specialized equipment deburring inevitably extend the entire production cycle, leading to reduced work efficiency. Summary of the Invention

[0004] In view of this, the present invention provides an automatic deburring stamping die, which can overcome the disadvantage that existing stamping dies will generate burrs on the shearing surface of the workpiece during use, requiring additional manual labor or special equipment to remove the burrs, thereby extending the entire production cycle and reducing work efficiency.

[0005] The technical implementation of the present invention is as follows: an automatic deburring stamping die, comprising: an upper die; a lower die, disposed directly below the upper die; a mounting frame, connected to the lower die; a first sliding frame, slidably connected to the inside of the mounting frame; a second sliding frame, slidably connected to the inside of the mounting frame, the second sliding frame slidingly contacting the first sliding frame, and both the second and first sliding frames having symmetrical cavities and grooves; a sliding plate, slidably connected to the cavity; a return spring, disposed in the cavity, with its two ends respectively connected to the side of the sliding plate and the inner wall of the cavity; a grinding plate, connected to the side of the sliding plate away from the return spring; a driving assembly, disposed in the lower die, for driving the second and first sliding frames to move; a bonding assembly, disposed in the lower die, for driving the grinding plate to move to bond with the outer side of the workpiece; and a discharge assembly, disposed in the lower die, for discharging the stamped workpiece.

[0006] Optionally, the drive assembly includes: a first drive motor, symmetrically mounted in the lower mold; and a crankshaft connected to the output shaft of the first drive motor, the crankshaft passing sequentially through the slide grooves on the first slide frame and the second slide frame.

[0007] Optionally, the bonding assembly includes: a first electric push rod, installed inside the lower mold; a fixed cylinder, connected inside the lower mold, with the fixed cylinder located directly above the first electric push rod; a diversion hose, connected to the top of the fixed cylinder and kept in communication, with the ends of the diversion hose connected to the first sliding frame and the second sliding frame respectively, and kept in communication with each cavity; and a piston, slidably connected inside the fixed cylinder, with the bottom of the piston connected to the telescopic rod of the first electric push rod.

[0008] Optionally, the discharge assembly includes: a second electric push rod, installed inside the upper mold; a sliding frame, slidably connected inside the upper mold, and the sliding frame is connected to the telescopic rod of the second electric push rod; a lifting frame, slidably connected inside the lower mold; a connecting spring, with its two ends connected to the lifting frame and the lower mold respectively; a discharge frame, connected inside the lower mold; a first control switch, installed inside the lower mold; and a pushing mechanism, located inside the lower mold, for pushing the workpiece on the lifting frame into the discharge frame for discharge.

[0009] Optionally, the pushing mechanism includes: a second control switch installed in the lower mold; a third electric push rod installed in the lower mold; and a push frame slidably connected in the lower mold, and the push frame is connected to the telescopic rod of the third electric push rod.

[0010] Optionally, it also includes a chamfering assembly, which includes: a second drive motor, installed inside the sliding frame; a connecting rod, rotatably connected inside the sliding frame, with the upper end of the connecting rod connected to the output shaft of the second drive motor; a first grinding head, connected to the lower end of the connecting rod; a square rod, connected to the bottom of the first grinding head; a round plate, slidably connected inside the lifting frame; a first spring, with both ends connected to the round plate and the lifting frame respectively; and a second grinding head, rotatably connected to the top of the round plate, with a square hole at the top of the second grinding head that matches the square rod.

[0011] Optionally, it also includes: an elastic membrane, a connecting grinding plate, and a mounting frame.

[0012] Optionally, it also includes: a guide rod, symmetrically and slidably connected to the bottom of the upper mold; a push plate, connected to the bottom of the guide rod; and a second spring, wrapped around the outside of the guide rod, with the two ends of the second spring connected to the push plate and the upper mold respectively.

[0013] The present invention has the following advantages: 1. The present invention drives the crankshaft through the first drive motor, which can drive the first sliding frame and the second sliding frame to reciprocate, so that the grinding plate connected thereto can automatically grind and remove burrs from the side of the stamped workpiece. At the same time, the chamfering component can grind and remove burrs from the edges of the round holes on the workpiece. In this way, the deburring work can be automatically completed during the workpiece unloading process without the need for additional manual labor or special equipment, shortening the entire production cycle and improving the overall production efficiency.

[0014] 2. This invention, through the function of the discharge component, can automatically discharge the workpiece after stamping and deburring, simplifying the operation process and ensuring that each workpiece can accurately complete the entire process from processing to discharge, reducing labor costs and the possibility of operational errors. At the same time, the elastic membrane can prevent the debris generated during deburring from entering the mounting frame, and the push plate can prevent the raw material from getting stuck on the upper die, ensuring that the upper die can smoothly detach from the raw material after completing the stamping work. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0016] Figure 2 This is a schematic diagram of the installation of the first sliding frame and the second sliding frame of the present invention.

[0017] Figure 3 This is a schematic diagram of the separation structure of the first sliding frame and the second sliding frame of the present invention.

[0018] Figure 4 This is a schematic diagram showing the installation of the sliding plate, reset spring, and grinding plate of the present invention.

[0019] Figure 5 This is a schematic diagram of the fit between the crankshaft and the slide groove of the present invention.

[0020] Figure 6 This is a schematic diagram of the installation of the bonding component of the present invention.

[0021] Figure 7 This is a schematic diagram of the specific structure of the bonding component of the present invention.

[0022] Figure 8 This is a schematic diagram of the installation of the material discharge component of the present invention.

[0023] Figure 9 This is a schematic diagram of the installation of the driving mechanism of the present invention.

[0024] Figure 10 This is a schematic diagram of the installation of the chamfering component of the present invention.

[0025] Figure 11 This is a schematic diagram of the installation of the elastic membrane of the present invention.

[0026] Figure 12 This is a schematic diagram showing the installation of the guide rod, push plate, and second spring of the present invention.

[0027] Figure 13 This is a schematic diagram of the raw materials and workpiece of the present invention.

[0028] Meaning of reference numerals in the diagram: 001-Raw material, 002-Workpiece, 003-Round hole, 1-Upper mold, 2-Lower mold, 3-Mounting frame, 4-First sliding frame, 5-Second sliding frame, 6-Cavity, 7-Slide groove, 8-Sliding plate, 9-Return spring, 10-Grinding plate, 11-First drive motor, 12-Crankshaft, 13-First electric push rod, 14-Fixed cylinder, 15-Diverter hose, 16-Piston, 17-Second electric push rod, 18-Slide... 19-Lifting frame, 20-Connecting spring, 21-Discharge frame, 22-First control switch, 23-Second control switch, 24-Third electric push rod, 25-Push frame, 26-Second drive motor, 27-Connecting rod, 28-First grinding head, 29-Square rod, 30-Round plate, 3001-First spring, 31-Second grinding head, 3101-Square hole, 32-Elastic membrane, 33-Guide rod, 34-Push plate, 35-Second spring. Detailed Implementation

[0029] Example: An automatic deburring stamping die, the stamping die being equipped with a control box for controlling the operation of various electrical components on the stamping die, such as... Figure 13 As shown, when in use, this stamping die can stamp a square workpiece 002 from the raw material 001, and the workpiece 002 has a round hole 003 in the middle; as Figures 1-9As shown, the assembly includes an upper mold 1, a lower mold 2, a mounting frame 3, a first sliding frame 4, a second sliding frame 5, a sliding plate 8, a return spring 9, a grinding plate 10, a drive assembly, a bonding assembly, and a discharge assembly. The lower mold 2 is positioned directly below the upper mold 1. The mounting frame 3 is connected to the upper inner side of the lower mold 2. The first sliding frame 4 and the second sliding frame 5 are slidably connected inside the mounting frame 3. The sliding directions of the first sliding frame 4 and the second sliding frame 5 are perpendicular to each other, and the second sliding frame 5 slides in contact with the first sliding frame 4. The first sliding frame 4 has symmetrically arranged cavities 6, and the second sliding frame 5 has symmetrically arranged cavities 6, with four cavities 6 in total. The sliding frame 4 and the second sliding frame 5 are symmetrically provided with four sliding grooves 7. Each cavity 6 is slidably connected with a sliding plate 8. Each cavity 6 is provided with a return spring 9, and the two ends of the return spring 9 are respectively connected to the side of the sliding plate 8 and the inner wall of the cavity 6. The sides of the four sliding plates 8 away from the return spring 9 are connected with grinding plates 10. The lower mold 2 is provided with a driving assembly for driving the second sliding frame 5 and the first sliding frame 4 to move. The lower mold 2 is provided with a fitting assembly for driving the grinding plate 10 to move to fit against the outside of the workpiece 002. The lower mold 2 is also provided with a discharge assembly for discharging the stamped workpiece 002.

[0030] like Figure 1 and Figure 5 As shown, the drive assembly includes a first drive motor 11 and a crankshaft 12. The first drive motor 11 is symmetrically mounted on the upper front side of the lower mold 2. The output shafts of the two first drive motors 11 are connected to the crankshaft 12, and the two crankshafts 12 pass through the sliding grooves 7 on the left and right sides respectively.

[0031] like Figure 6 and Figure 7 As shown, the bonding assembly includes a first electric push rod 13, a fixed cylinder 14, a diversion hose 15, and a piston 16. The first electric push rod 13 is installed on the lower right rear side of the lower mold 2. The fixed cylinder 14 is connected to the lower right rear side of the lower mold 2 and is located directly above the first electric push rod 13. The top of the fixed cylinder 14 is connected to the diversion hose 15 and keeps it in communication. The other four ends of the diversion hose 15 are connected to the four cavities 6 respectively and keep them in communication. The piston 16 is slidably connected inside the fixed cylinder 14, and the bottom of the piston 16 is connected to the telescopic rod of the first electric push rod 13.

[0032] like Figure 8 and Figure 9As shown, the discharge assembly includes a second electric push rod 17, a sliding frame 18, a lifting frame 19, a connecting spring 20, a discharge frame 21, a first control switch 22, and a pushing mechanism. The second electric push rod 17 is installed on the upper inner side of the upper mold 1. The sliding frame 18 is slidably connected to the lower inner side of the upper mold 1, and the top of the sliding frame 18 is connected to the telescopic rod of the second electric push rod 17. The lifting frame 19 is slidably connected inside the lower mold 2, located directly below the sliding frame 18. Two connecting springs 20 connect the lifting frame 19 to the lower mold 2. The discharge frame 21 is connected to the lower front of the lower mold 2. The inner bottom of the discharge frame 21 is an inverted "V" shape, meaning that both the left and right sides of the inner bottom of the discharge frame 21 are sloped. Both sides of the lower mold 2 are open-type designs. The right side of the inner wall of the lower mold 2 is equipped with a first control switch 22. When the lifting frame 19 moves downward, the right side of the lifting frame 19 will press the first control switch 22. The lower mold 2 is equipped with a pushing mechanism for pushing the workpiece 002 on the lifting frame 19 into the discharge frame 21 for discharge. The pushing mechanism includes a second control switch 23, a third electric push rod 24 and a push frame 25. The second control switch 23 is installed in the middle of the bottom of the lower mold 2. When the lifting frame 19 moves downward, the bottom of the lifting frame 19 will press the first control switch 22. The lower side of the interior of the lower mold 2 is equipped with a third electric push rod 24. The push frame 25 is slidably connected to the rear side of the lower mold 2, and the push frame 25 is connected to the telescopic rod of the third electric push rod 24.

[0033] like Figure 10 As shown, it also includes a chamfering assembly, which includes a second drive motor 26, a connecting rod 27, a first grinding head 28, a square rod 29, a round plate 30, a first spring 3001, and a second grinding head 31. The second drive motor 26 is installed on the upper side inside the sliding frame 18. The connecting rod 27 is rotatably connected to the upper side inside the sliding frame 18, and the upper end of the connecting rod 27 is connected to the output shaft of the second drive motor 26. The lower end of the connecting rod 27 is connected to the first grinding head 28. The bottom of the first grinding head 28 is connected to the square rod 29. The round plate 30 is slidably connected to the upper side inside the lifting frame 19. The bottom of the round plate 30 is connected to the lifting frame 19, and the first spring 3001 is connected between the bottom of the round plate 30 and the lifting frame 19. The top of the round plate 30 is rotatably connected to the second grinding head 31. The second grinding head 31 is located directly below the first grinding head 28, and the top of the second grinding head 31 has a square hole 3101 that matches the square rod 29.

[0034] like Figure 11 As shown, it also includes an elastic membrane 32. An elastic membrane 32 is connected between the outer side of each grinding plate 10 and the mounting frame 3. The elastic membrane 32 is used to block the gap between the grinding plate 10 and the mounting frame 3.

[0035] like Figure 12As shown, it also includes guide rods 33, push plates 34 and second springs 35. Four guide rods 33 are symmetrically slidably connected to the bottom of the upper mold 1. The bottom of the four guide rods 33 is connected to the push plates 34. The outer sides of the four guide rods 33 are all wrapped with second springs 35. The two ends of the second springs 35 are respectively connected to the top of the push plates 34 and the upper mold 1.

[0036] Initially, the fixed cylinder 14 contains a certain amount of hydraulic oil. First, the crankshaft 12 is driven to rotate by the first drive motor 11. Through the cooperation of the crankshaft 12 and the slide groove 7, the first sliding frame 4 can be driven to reciprocate left and right, and the second sliding frame 5 can be driven to reciprocate back and forth. The first sliding frame 4 and the second sliding frame 5 can respectively drive the four grinding plates 10 to reciprocate. The elastic membrane 32 will adapt to the deformation so that the elastic membrane 32 can always block the gap between the grinding plate 10 and the mounting frame 3. Then, the raw material 001 is placed on the top of the lower mold 2, and the second grinding head 31 will just contact the lower edge of the round hole 003. Then, the upper mold 1 is controlled to move downward. The upper mold 1 drives the connecting rod 27, the first grinding head 28, the square rod 29, the guide rod 33 and The push plate 34 moves downward. When the bottom of the push plate 34 contacts the top of the raw material 001, the push plate 34 stops moving downward, while the upper die 1 continues to drive the connecting rod 27, the first grinding head 28, and the square rod 29 to move downward. The second spring 35 is compressed. At this time, the square rod 29 passes through the round hole 003 and inserts into the square hole 3101. When the bottom of the upper die 1 contacts the top of the raw material 001, the upper die 1 and the lower die 2 cooperate to stamp the raw material 001 to form the workpiece 002. The workpiece 002 is placed on the top of the lifting frame 19. At the same time, the first grinding head 28 contacts the upper edge of the round hole 003. Then, the second drive motor 26 is controlled to drive the connecting rod 27 to rotate. The connecting rod 27 drives the first grinding head 28 to rotate. The first grinding head 28 passes through... Through the cooperation of the square rod 29 and the square hole 3101, the second grinding head 31 can be driven to rotate, so that the first grinding head 28 and the second grinding head 31 can respectively grind and chamfer the upper and lower edges of the round hole 003 to remove burrs at the upper and lower edges of the round hole 003. At the same time, the second electric push rod 17 can be controlled to drive the sliding frame 18 to move downward. The sliding frame 18 will push the stamped workpiece 002 to move downward. The workpiece 002 will squeeze the lifting frame 19 to move downward. The connecting spring 20 is stretched. At the same time, the sliding frame 18 and the lifting frame 19 can drive the first grinding head 28 and the second grinding head 31 to move downward synchronously, so that the grinding and chamfering work of the first grinding head 28 and the second grinding head 31 can continue. When the workpiece 002 descends to the level of the grinding plate 10, the grinding and chamfering work of the first grinding head 28 and the second grinding head 31 can continue. At its highest point, the lifting frame 19 will just contact the first control switch 22. The first control switch 22 sends a signal, and after receiving the signal, the control box will control the first electric push rod 13 to drive the piston 16 to move upward. The piston 16 will push the hydraulic oil in the fixed cylinder 14 into the diversion hose 15, and then flow into the four cavities 6 through the diversion hose 15. The hydraulic oil in the cavities 6 will push the sliding plate 8 to move closer to the lifting frame 19, the return spring 9 will be stretched, and the sliding plate 8 can drive the grinding plate 10 to move closer to the lifting frame 19, so that the four grinding plates 10 can contact the front, back, left, and right sides of the workpiece 002 respectively. The reciprocating motion of the grinding plates 10 can grind the sides of the workpiece 002 to remove burrs from the sides of the workpiece 002.The elastic membrane 32 prevents grinding debris from falling into the mounting frame 3. When the lifting frame 19 disengages from the first control switch 22, the first control switch 22 sends a signal. Upon receiving the signal, the control box controls the first electric push rod 13 to drive the piston 16 to move downwards and reset. This allows the hydraulic oil in the cavity 6 to be drawn back into the fixed cylinder 14 through the diversion hose 15. The reset spring 9 returns to its original state, which can drive the sliding plate 8 and the grinding plate 10 to move away from the lifting frame 19 and reset, preventing the grinding plate 10 from being in prolonged contact with the surface of the lifting frame 19 and causing wear. Subsequently, the bottom of the lifting frame 19 contacts the second control switch 23, which sends a signal. Upon receiving the signal, the control box... Then, the third electric push rod 24 will drive the push frame 25 forward, allowing the lower part of the push frame 25 to insert into the lower part of the lifting frame 19 to limit the lifting frame 19. Then, the control box will control the second drive motor 26 to stop working, causing the first grinding head 28 and the second grinding head 31 to stop rotating. Simultaneously, the control box will control the second electric push rod 17 to drive the sliding frame 18 upward to reset. The sliding frame 18 will drive the first grinding head 28 and the square rod 29 upward, causing them to disengage from the round hole 003. Subsequently, the upper part of the push frame 25 will contact the workpiece 002 placed on top of the lifting frame 19, thus pushing the workpiece 002 forward. The round hole 003 on the workpiece 002... 03 will compress the second grinding head 31 to move downwards, causing the circular plate 30 to move downwards. The first spring 3001 will be compressed. When the workpiece 002 disengages from the second grinding head 31, the first spring 3001 will return to its original state, causing the circular plate 30 and the second grinding head 31 to move upwards and reset, until the workpiece 002 is pushed into the discharge frame 21, so that the workpiece 002 can slide along the inclined surface at the bottom of the discharge frame 21 for discharge. Then, the control box will control the third electric push rod 24 to drive the push frame 25 to move backwards and reset. When the push frame 25 disengages from the lifting frame 19, the connecting spring 20 will return to its original state, causing the lifting frame 19 to move upwards and reset. Finally, the upper mold 1 will be controlled to move upwards. After disengaging from the lower mold 2, the upper mold 1 moves the connecting rod 27, the first grinding head 28, and the square rod 29 upwards to reset. Under the elastic force of the second spring 35, the push plate 34 remains pressed against the top of the material 001, preventing the material 001 from getting stuck on the upper mold 1 and ensuring that the upper mold 1 can completely disengage from the material 001. Simultaneously, the second spring 35 gradually returns to its original state. Once the second spring 35 has fully returned to its original state, the upper mold 1, through the second spring 35, can move the guide rod 33 and the push plate 34 upwards, causing the push plate 34 to disengage from the material 001. This allows for automatic grinding and deburring of the four sides of the workpiece 002 and the edges of the round hole 003 during the workpiece 002's discharge process, improving work efficiency.

Claims

1. An automatic deburring stamping die, comprising: an upper die (1); and a lower die (2) disposed directly below the upper die (1); characterized in that, It also includes: a mounting frame (3), connected to the lower mold (2); a first sliding frame (4), slidably connected to the inside of the mounting frame (3); a second sliding frame (5), slidably connected to the inside of the mounting frame (3), the sliding directions of the first sliding frame (4) and the second sliding frame (5) are perpendicular to each other, the second sliding frame (5) slides in contact with the first sliding frame (4), and both the second sliding frame (5) and the first sliding frame (4) have symmetrically opened cavities (6) and grooves (7); a sliding plate (8), slidably connected to the cavity (6); and a return spring (9), set in the... Inside the cavity (6), the two ends of the return spring (9) are respectively connected to the side of the sliding plate (8) and the inner wall of the cavity (6); the grinding plate (10) is connected to the side of the sliding plate (8) away from the return spring (9); the driving assembly is set inside the lower mold (2) and is used to drive the second sliding frame (5) and the first sliding frame (4) to move; the bonding assembly is set inside the lower mold (2) and is used to drive the grinding plate (10) to move to bond with the outside of the workpiece (002); the discharge assembly is set inside the lower mold (2) and is used to discharge the stamped workpiece (002); The bonding assembly includes: a first electric push rod (13), installed inside the lower mold (2); and a fixing cylinder (14), connected inside the lower mold (2), with the fixing cylinder (14) located directly above the first electric push rod (13). The diversion hose (15) is connected to the top of the fixed cylinder (14) and remains in communication. The ends of the diversion hose (15) are connected to the first sliding frame (4) and the second sliding frame (5) respectively, and remain in communication with each cavity (6). The piston (16) is slidably connected inside the fixed cylinder (14), and the bottom of the piston (16) is connected to the telescopic rod of the first electric push rod (13).

2. The automatic deburring stamping die according to claim 1, characterized in that, The drive assembly includes: a first drive motor (11), symmetrically mounted in the lower mold (2); and a crankshaft (12), connected to the output shaft of the first drive motor (11), and the crankshaft (12) passes through the grooves (7) on the first sliding frame (4) and the second sliding frame (5) in sequence.

3. A stamping die for automatic deburring according to claim 2, characterized in that, The discharge assembly includes: a second electric push rod (17), installed in the upper mold (1); a sliding frame (18), slidably connected in the upper mold (1), and the sliding frame (18) is connected to the telescopic rod of the second electric push rod (17); a lifting frame (19), slidably connected in the lower mold (2); a connecting spring (20), with its two ends connected to the lifting frame (19) and the lower mold (2) respectively; a discharge frame (21), connected in the lower mold (2); a first control switch (22), installed in the lower mold (2); and a pushing mechanism, set in the lower mold (2), used to push the workpiece (002) on the lifting frame (19) into the discharge frame (21) for discharge.

4. A stamping die for automatic deburring according to claim 3, characterized in that, The pushing mechanism includes: a second control switch (23), installed in the lower mold (2); a third electric push rod (24), installed in the lower mold (2); and a push frame (25), which is slidably connected in the lower mold (2), and the push frame (25) is connected to the telescopic rod of the third electric push rod (24).

5. A stamping die for automatic deburring according to claim 4, characterized in that, It also includes a chamfering assembly, which includes: a second drive motor (26), installed in the sliding frame (18); a connecting rod (27), rotatably connected in the sliding frame (18), and the upper end of the connecting rod (27) is connected to the output shaft of the second drive motor (26); a first grinding head (28), connected to the lower end of the connecting rod (27); a square rod (29), connected to the bottom of the first grinding head (28); a round plate (30), slidably connected in the lifting frame (19); a first spring (3001), with its two ends connected to the round plate (30) and the lifting frame (19) respectively; a second grinding head (31), rotatably connected to the top of the round plate (30), and the top of the second grinding head (31) has a square hole (3101) that matches the square rod (29).

6. A stamping die for automatic deburring according to claim 1, characterized in that, It also includes: an elastic membrane (32), a connecting grinding plate (10), and a mounting frame (3).

7. A stamping die for automatic deburring according to claim 1, characterized in that, It also includes: a guide rod (33), which is symmetrically slidably connected to the bottom of the upper mold (1); a push plate (34), which is connected to the bottom of the guide rod (33); and a second spring (35), which is wrapped around the outside of the guide rod (33), and the two ends of the second spring (35) are respectively connected to the push plate (34) and the upper mold (1).

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