Stamping die

Abstract

The utility model relates to the technical field of stamping dies, in particular to a stamping die which comprises a horizontally-arranged operation plate, protruding parts arranged on the side wall of the operation plate at intervals, a stamping table and a discharging assembly, and the stamping table and the discharging assembly are arranged on the upper plate face of the operation plate. The discharging assembly comprises a lead screw rotationally arranged in the sliding groove, a sliding block arranged in the sliding groove in a sliding mode and connected with the lead screw in a threaded mode, a mounting plate fixedly connected to the upper surface of the sliding block, a sliding piece arranged on the upper plate face of the mounting plate in a sliding mode, a fixing cylinder vertically arranged on the upper surface of the sliding piece and a third motor arranged in the fixing cylinder. And the telescopic cylinder is slidably arranged in the fixed cylinder, the inner wall of the telescopic cylinder is in threaded connection with an output shaft of the third motor, the clamping plate is arranged on the upper end face of the telescopic cylinder, the sliding piece can slide in the length direction of the mounting plate, and the effects that the stamped plate is automatically taken away from the stamping position, manpower is saved, and the stamping efficiency is improved are achieved.

Description

Technical Field

[0001] This application relates to the field of stamping die technology, and in particular to a stamping die. Background Technology

[0002] Currently, the liquid cooling plate is one of the most critical components in the battery pack liquid cooling system. Its main function is to effectively remove excess heat generated by the battery or module during operation through the coolant flowing in the internal channels, thereby achieving the heat dissipation effect of the battery. The manufacturing of the liquid cooling plate requires the use of stamping dies for stamping processes to form a liquid cooling plate with a precise flow channel structure.

[0003] Existing stamping dies use a punch that can move up and down and a base located below the punch. The base has a groove shaped like a coolant flow channel. The cut sheet metal is placed on the base below the punch, and the punch falls down to perform stamping.

[0004] The existing technical solutions mentioned above have the following drawbacks: During the stamping process, one worker needs to manually remove the stamped sheet from the base, and then another worker places the cut sheet on the base under the punch for stamping. This process is repeated, and the two workers repeatedly perform the relatively simple task of placing and removing the sheet, which wastes manpower and is inefficient. Utility Model Content

[0005] This application provides a stamping die for automating the removal of stamped sheet metal from the stamping station, saving manpower and improving stamping efficiency.

[0006] The above-mentioned technical objective of this application is achieved through the following technical solution:

[0007] A stamping die includes a horizontally arranged operating plate, protrusions spaced apart on the sidewalls of the operating plate, a stamping table on the surface of the operating plate, and two sets of blanking assemblies. Sliding grooves are formed on the surface of the operating plate and the protrusions at both ends of the stamping table. The length direction of the sliding grooves is perpendicular to the length direction of the operating plate. Each set of blanking assemblies includes a lead screw rotatably disposed within the sliding groove, a sliding block threadedly connected to the lead screw within the sliding groove, a mounting plate fixed to the upper surface of the sliding block, a sliding member slidably disposed on the surface of the mounting plate, a fixed cylinder vertically disposed on the upper surface of the sliding member, a third motor disposed within the fixed cylinder, a telescopic cylinder slidably disposed within the fixed cylinder and threadedly connected to the output shaft of the third motor, and a clamping plate disposed on the upper end face of the telescopic cylinder. The length direction of the mounting plate is parallel to the length direction of the operating plate, and the sliding member can slide along the length direction of the mounting plate.

[0008] By adopting the above technical solution, during the stamping of sheet metal, the cut sheet metal is placed on the upper surface of the stamping table. The lead screw in the blanking assembly drives the sliding component to move towards the stamping table. The sliding component drives the clamping plate to clamp and fix the sheet metal on the stamping table, facilitating subsequent stamping of the sheet metal. This reduces the possibility of the cooling channel position shifting due to sheet metal movement during stamping, thus improving the stamping yield. After stamping, the telescopic cylinder is extended and retracted by the third motor, moving the sheet metal away from the operating table until it is completely off the stamping table. The sliding block then moves towards the protrusion, positioning the sheet metal between the two protrusions. The two clamping plates move away from each other, releasing the sheet metal. The telescopic cylinder and sliding block reset, automatically removing the sheet metal from the stamping table. Compared to manually removing the stamped sheet metal from the operating table, this method is more efficient and saves manpower.

[0009] Optionally, positioning plates are fixedly connected to both sides of the upper surface of the stamping platform along the length direction. The surface of the positioning plate is perpendicular to the upper surface of the stamping platform, and the length direction of the positioning plate is parallel to the length direction of the stamping platform.

[0010] By adopting the above technical solution and setting a positioning plate, the sheet material to be stamped can be quickly positioned at the stamping position, reducing the time for workers to adjust the sheet material and improving stamping efficiency.

[0011] Optionally, the sidewall of the sliding block is slidably fitted with the wall of the sliding groove.

[0012] By adopting the above technical solution, the surface of the sliding block slides and fits into the wall of the sliding groove, reducing the possibility of the sliding block shaking during the sliding process.

[0013] Optionally, a limiting block is fixedly connected to the surface of the mounting plate. The length direction of the limiting block is parallel to the length direction of the mounting plate. The side wall of the limiting block is inclined and the side wall of the limiting block close to the mounting plate is close to each other. A limiting groove adapted to the limiting block is opened on the surface of the sliding member opposite to the mounting plate. The sliding member is slidably sleeved on the limiting block through the limiting groove.

[0014] By adopting the above technical solution and setting limit blocks and limit grooves, the possibility of the sliding component separating from the mounting plate during the sliding process can be reduced.

[0015] Optionally, the third motor is a stepper motor.

[0016] By adopting the above technical solution, the stepper motor has good control performance and can more stably control the telescopic cylinder to extend and retract.

[0017] Optionally, a limiting groove is provided on the outer peripheral wall of the telescopic cylinder, and a limiting member adapted to the limiting groove is provided on the inner peripheral wall of the fixed cylinder, and the limiting member slides in the limiting groove.

[0018] By adopting the above technical solutions, the limiting component and the limiting groove can reduce the possibility of the telescopic cylinder rotating during the telescopic process.

[0019] Optionally, the stamping die also includes a connecting column vertically mounted on the surface of the operating plate, a fixed plate horizontally mounted on the upper end of the connecting column, an electric push rod mounted on the surface of the fixed plate, and a sliding plate slidably mounted between the fixed plate and the operating plate. The push rod end of the electric push rod passes through the fixed plate and is fixedly connected to the sliding plate. The surface of the sliding plate facing away from the fixed plate is provided with a stamping block corresponding to the stamping table. The upper surface of the stamping table is provided with a recessed groove in the shape of a cooling channel. The surface of the stamping block facing away from the sliding plate is provided with a protrusion adapted to the groove.

[0020] By adopting the above technical solution, by setting a sliding plate, an electric push rod and a stamping block, the electric push rod pushes the sliding plate, which drives the stamping block to move in the direction perpendicular to the upper surface of the stamping table. The protrusions on the surface of the stamping block can cooperate with the grooves on the surface of the stamping table to perform the stamping work of forming the cooling flow channel of the sheet metal placed on the surface of the stamping bar, which is highly efficient.

[0021] Optionally, the sliding plate is slidably sleeved on the peripheral wall of the connecting column.

[0022] By adopting the above technical solution and setting connecting columns, the sliding trajectory of the sliding plate can be restricted, reducing the possibility of the sliding plate shaking or tilting during the sliding process.

[0023] In summary, this application has the following technical effects:

[0024] 1. By incorporating a feeding assembly, during sheet metal stamping, the cut sheet metal is placed on the upper surface of the stamping table. A lead screw in the feeding assembly drives a sliding component to move towards the stamping table. The sliding component, along with the clamping plates, clamps and secures the sheet metal on the stamping table, facilitating subsequent stamping and reducing the possibility of cooling channel misalignment due to sheet metal movement during stamping, thus improving the stamping yield. After stamping, a third motor drives a telescopic cylinder to extend and retract, moving the sheet metal away from the operating table until it is completely off the stamping table. This causes the sliding block to move towards the protrusions, positioning the sheet metal between the two protrusions. The two clamping plates then move away from each other, releasing the sheet metal. The telescopic cylinder and sliding block reset, automatically removing the sheet metal from the stamping table. Compared to manually removing the stamped sheet metal from the operating table, this method is more efficient and saves manpower.

[0025] 2. By setting up a positioning plate, the sheet metal to be stamped can be quickly positioned at the stamping position, reducing the time for workers to adjust the sheet metal and improving stamping efficiency;

[0026] 3. By setting up a sliding plate, an electric push rod and a stamping block, the electric push rod pushes the sliding plate, which drives the stamping block to move in the direction perpendicular to the upper surface of the stamping table. The protrusions on the surface of the stamping block can cooperate with the grooves on the surface of the stamping table to perform the stamping work of forming the cooling flow channel of the sheet metal placed on the surface of the stamping bar, which is highly efficient. Attached Figure Description

[0027] Figure 1 This is a structural diagram of the object of this application;

[0028] Figure 2 This is a structural diagram from another perspective of this application;

[0029] Figure 3 This is a structural diagram of the operating table and unloading assembly of this application;

[0030] Figure 4 This is a structural diagram of the blanking component of this application;

[0031] Figure 5 yes Figure 4 Enlarged view of point A in the middle.

[0032] Explanation of reference numerals in the attached drawings: 1. Operating table; 11. Support column; 12. Operating plate; 121. Protrusion; 122. Sliding groove; 13. Stamping table; 131. Groove; 132. Positioning plate; 2. Unloading assembly; 21. Lead screw; 22. First motor; 23. Sliding block; 24. Mounting plate; 241. Limiting block; 242. Drive groove; 243. Second motor; 25. Sliding component; 251. Limiting groove; 26. Fixed cylinder; 261. Third motor; 262. Telescopic cylinder; 263. Limiting component; 264. Limiting groove; 27. Clamping plate; 28. PLC processor; 3. Stamping assembly; 31. Connecting column; 32. Fixed plate; 33. Electric push rod; 34. Sliding plate; 35. Stamping block. Detailed Implementation

[0033] The present application will be further described in detail below with reference to the accompanying drawings.

[0034] This application discloses a stamping die, referring to... Figure 1 The stamping die includes an operating table 1, a blanking component 2 and a stamping component 3 set on the operating table 1. The operating table 1, together with the stamping component 3, can perform stamping operations on the cut sheet metal to form cooling channels for the liquid cooling plate on the surface of the sheet metal. The blanking component 2 can clamp the sheet metal, which facilitates the subsequent stamping by the stamping component 3, reduces the possibility of the cooling channel position shifting due to sheet metal movement during the stamping process, and improves the stamping yield. After stamping, the blanking component 2 can automatically unload the stamped sheet metal. Compared with manually removing the stamped sheet metal from the operating table 1, the work efficiency is high and the manpower is saved.

[0035] Combination Figure 1 and Figure 3 The operating table 1 includes a horizontally arranged operating plate 12, four vertically arranged support columns 11 on the lower surface of the operating plate 12, two protrusions 121 spaced apart on the side wall of the operating plate 12, a stamping table 13 on the upper surface of the operating plate 12, and two positioning plates 132 on the edge of the upper surface of the stamping table 13. The operating plate 12 is a strip plate made of metal, and the four support columns 11 are located at the four corners of the lower surface of the operating plate 12.

[0036] Combination Figure 1 and Figure 3 The protrusion 121 is a strip plate made of metal. The two protrusions 121 are fixed to the same side wall of the operating plate 12. The length direction of the protrusion 121 is perpendicular to the length direction of the operating plate 12. The end face of the protrusion 121 is fixed to the side wall of the operating plate 12. The upper and lower plate surfaces of the two protrusions 121 are flush with the upper and lower plate surfaces of the operating plate 12, respectively. The opposite side walls of the two protrusions 121 are flush with the two end faces of the operating plate 12.

[0037] Combination Figure 1 and Figure 3 The stamping table 13 is a block, fixedly connected to the upper surface of the operating plate 12. The length of the stamping table 13 is parallel to the length of the operating plate 12. The length of the stamping table 13 is less than the length of the cut sheet metal. A recessed groove 131 in the shape of a coolant flow channel is formed on the upper surface of the stamping table 13. The positioning plate 132 is a metal strip plate. The surface of the positioning plate 132 is perpendicular to the upper surface of the stamping table 13. The length of the positioning plate 132 is parallel to the length of the stamping table 13. The end face of the positioning plate 132 is flush with the end face of the stamping table 13. The positioning plate 132 can quickly position the sheet metal to be stamped at the stamping position, reducing the time for operators to adjust the sheet metal and improving stamping efficiency.

[0038] Combination Figure 1 and Figure 3 The upper surface of the operating plate 12 and the upper surface of the two protrusions 121 are respectively provided with two strip-shaped sliding grooves 122. The length direction of the sliding grooves 122 is perpendicular to the length direction of the operating plate 12. One section of the sliding groove 122 is provided on the upper surface of the protrusions 121 and the other section is provided on the upper surface of the operating plate 12. Two sets of feeding components 2 are provided on the upper surface of the operating plate 12.

[0039] Combination Figure 3 and Figure 4A feeding assembly 2 includes a lead screw 21 rotatably disposed in a sliding groove 122, a first motor 22 disposed on the side wall of an operating plate 12, a sliding block 23 slidably disposed in the sliding groove 122, a mounting plate 24 fixed to the upper surface of the sliding block 23, a second motor 243 fixed to the side wall of the mounting plate 24, and a sliding member 25 slidably disposed on the side of the mounting plate 24 opposite to the sliding block 23. The length direction of the lead screw 21 is parallel to the length direction of the sliding groove 122. The end of the lead screw 21 is rotatably embedded in the end wall of the sliding groove 122, and the peripheral wall of the lead screw 21 is spaced apart from the groove wall of the sliding groove 122. The first motor 22 is located on the side of the operating plate 12 opposite to the protrusion 121, and the output shaft of the first motor 22 passes through the operating plate 12 and is coaxially fixed to the end face of the lead screw 21.

[0040] Combination Figure 3 and Figure 4 The sliding block 23 is a square block, which is sleeved on the lead screw 21. The sliding block 23 is threadedly connected to the lead screw 21. The surface of the sliding block 23 slides and fits against the wall of the sliding groove 122, reducing the possibility of the sliding block 23 shaking during the sliding process. The surface of the sliding block 23 protrudes from the surface of the support column 11 and onto the upper surface of the operating plate 12.

[0041] Combination Figure 3 and Figure 4 The mounting plate 24 is a metal strip plate. The middle part of the mounting plate 24 is fixed to the surface of the sliding block 23 away from the support column 11. The length direction of the mounting plate 24 is parallel to the length direction of the operating plate 12. Both ends of the mounting plate 24 are located above the operating plate 12, and the end faces of the mounting plate 24 are spaced apart from the stamping table 13.

[0042] Combination Figure 3 and Figure 4 A limiting block 241 is provided on the surface of the mounting plate 24 opposite to the sliding block 23. The length direction of the limiting block 241 is parallel to the length direction of the mounting plate 24, and the end face of the limiting block 241 is flush with the end face of the mounting plate 24. The side walls of the limiting block 241 opposite to the mounting plate 24 are all inclined, and the two side walls of the limiting block 241 close to each other so that their end faces are isosceles trapezoids. A strip-shaped drive groove 242 is formed on the surface of the limiting block 241 opposite to the mounting plate 24. The length direction of the drive groove 242 is parallel to the length direction of the limiting block 241, and the drive groove 242 has openings on both the end faces of the mounting plate 24 and the limiting block 241. The end of the output shaft of the second motor 243 passes through the mounting plate 24 and is located in the drive groove 242. The axis of the output shaft of the second motor 243 is perpendicular to the length direction of the mounting plate 24.

[0043] Combination Figure 3 and Figure 4The sliding member 25 is a cube, and its length is parallel to that of the mounting plate 24. The length of the sliding member 25 is less than that of the mounting plate 24. A limiting groove 251, adapted to the limiting block 241, is formed on the surface of the sliding member 25. The sliding member 25 is slidably fitted onto the limiting block 241 through the limiting groove 251, and its surface is slidably in contact with the mounting plate 24. The bottom of the limiting groove 122 has teeth parallel to the length of the limiting block 241 and in a strip shape. When the sliding member 25 is fitted onto the limiting block 241, the teeth are located within the drive groove 242. A gear is coaxially fixed to the end face of the second motor 243, and the gear can mesh with the teeth at the bottom of the limiting groove 251. The limiting block 241 and the limiting groove 251 reduce the possibility of the sliding member 25 separating from the mounting plate 24 during sliding.

[0044] Combination Figure 4 and Figure 5 The feeding assembly 2 also includes a fixed cylinder 26 vertically disposed on the surface of the sliding member 25 away from the mounting plate 24, a third motor 261 disposed inside the fixed cylinder 26 and fixedly connected to the sliding member 25, and a telescopic cylinder 262 slidably disposed inside the fixed cylinder 26. The fixed cylinder 26 is a cylindrical cylinder, and its lower end face is fixedly connected to the upper surface of the sliding member 25. The output shaft of the third motor 261 is vertical and coaxially disposed with the fixed cylinder 26. The output shaft of the third motor 261 is away from the sliding member 25, and its end face is flush with the upper end face of the fixed cylinder 26. A thread is provided on the peripheral wall of the end of the output shaft of the third motor 261.

[0045] Combination Figure 4 and Figure 5 The telescopic cylinder 262 is a cylindrical cylinder. The telescopic cylinder 262 is coaxially arranged with the fixed cylinder 26. The outer peripheral wall of the telescopic cylinder 262 is slidably attached to the inner peripheral wall of the fixed cylinder 26. The inner peripheral wall of the telescopic cylinder 262 is threadedly connected to the output shaft of the third motor 261. The end of the telescopic cylinder 262 is spaced apart from the housing of the third motor 261, and the upper end face of the telescopic cylinder 262 can be flush with the upper end face of the fixed cylinder 26.

[0046] Combination Figure 4 and Figure 5 The telescopic cylinder 262 has two strip-shaped limiting grooves 264 along its axis on its outer peripheral wall. The two limiting grooves 264 are located on opposite sides of the outer peripheral wall of the telescopic cylinder 262. The inner peripheral wall of the fixed cylinder 26 is provided with limiting members 263 that are adapted to the limiting grooves 264 on both opposite sides. The limiting members 263 are close to the upper end face of the fixed cylinder 26 and slide in the limiting grooves 264. The limiting members 263 and the limiting grooves 264 can reduce the possibility of the telescopic cylinder 262 rotating during the telescopic process.

[0047] Combination Figure 3 and Figure 4A clamping plate 27 is fixedly connected to the end face of the telescopic cylinder 262 opposite to the sliding member 25. The surface of the clamping plate 27 is perpendicular to the length direction of the mounting plate 24. The end face of the sliding member 25 near the stamping table 13, the side of the outer peripheral wall of the fixed cylinder 26 near the stamping table 13, and the surface of the clamping plate 27 near the stamping table 13 are all flush and located on the same vertical plane. The surface of the clamping plate 27 can abut against the end face of the stamping table 13.

[0048] Combination Figure 2 and Figure 4 The control panel 12 has a PLC processor 28 mounted on its upper surface. The PLC processor 28 is located on the side of the stamping table 13 away from the protrusion 121, and is spaced apart from the stamping table 13. The PLC processor 28 is electrically connected to the first motor 22, the second motor 243, and the third motor 261. The first motor 22, the second motor 243, and the third motor 261 are all stepper motors.

[0049] Combination Figure 1 and Figure 2 The stamping assembly 3 includes vertical connecting columns 31 located at the four corners of the operating plate 12, a fixed plate 32 horizontally located on the upper end of the connecting columns 31, an electric push rod 33 located on the fixed plate 32 facing away from the surface of the connecting columns 31, a sliding plate 34 slidably located between the fixed plate 32 and the operating plate 12, and a stamping block 35 located on the sliding plate 34 facing away from the surface of the fixed plate 32. The lower surface of the fixed plate 32 is fixedly connected to the upper surface of the connecting columns 31, and the length direction of the fixed plate 32 is parallel to the length direction of the operating plate 12. The connecting columns 31 do not interfere with the operation of the feeding assembly 2.

[0050] Combination Figure 1 and Figure 2 The outer shell of the electric push rod 33 is fixedly connected to the upper surface of the fixed plate 32. The end of the push rod of the electric push rod 33 passes through the fixed plate 32 and is fixedly connected to the surface of the sliding plate 34. The electric push rod 33 is electrically connected to the PLC processor 28. The surface of the sliding plate 34 is parallel to the surface of the fixed plate 32, and the length direction of the sliding plate 34 is parallel to the length direction of the operating plate 12. The sliding plate 34 is slidably sleeved on the periphery of the four connecting posts 31. The four connecting posts 31 can limit the sliding trajectory of the sliding plate 34 and reduce the possibility of the sliding plate 34 shaking or tilting during the sliding process.

[0051] Combination Figure 1 and Figure 2 The stamping block 35 corresponds to the stamping table 13. The surface of the stamping block 35 facing away from the sliding plate 34 is provided with a protrusion that matches the groove 131. The stamping block 35, in conjunction with the stamping table 13, can stamp the sheet material placed on the stamping table 13. During the stamping process, the sliding plate 34 and the unloading assembly 2 do not interfere with each other.

[0052] Combination Figure 1and Figure 2 The cut sheet metal is placed on the upper surface of the stamping table 13. The positioning plate 132 quickly aligns the sheet metal. The PLC processor 28 controls the second motor 243 to synchronously move the sliding parts 25 in both sets of feeding assemblies 2 towards the stamping table 13. The sliding parts 25 drive the clamping plates 27 to clamp and fix the sheet metal on the stamping table 13, reducing the possibility of movement during stamping. After stamping, the third motor 261 drives the telescopic cylinder 262 to extend and retract, moving the sheet metal away from the operating table 1 until it moves towards the protrusion 121 without being restricted by the positioning plate 132. The first motor 22 then drives the sliding block 23 to move closer to the protrusion 121, positioning the sheet metal between the two protrusions 121. The two clamping plates 27 move away from each other, releasing the sheet metal. The telescopic cylinder 262 and sliding block 23 reset, automatically removing the sheet metal from the stamping table 13. This method is more efficient and saves manpower compared to manual removal of the sheet metal from the stamping table 13.

[0053] This specific embodiment is merely an explanation of this application and is not intended to limit it. After reading this specification, those skilled in the art can make modifications to this embodiment without contributing any inventive step, but such modifications are protected by patent law as long as they fall within the scope of the claims of this application.

Claims

1. A stamping die characterized by: The utility model provides a stamping platform, including horizontal arrangement operation board (12), the projection (121) of interval arrangement in the side wall of operation board (12), and the stamping platform (13) and two groups of blanking assembly (2) of setting on the board surface of operation board (12), the board surface of operation board (12) and the projection (121) of both ends of stamping platform (13) are provided with sliding slot (122), and the length direction of sliding slot (122) is perpendicular to the length direction of operation board (12). One group blanking assembly (2) includes lead screw (21) rotationally arranged in sliding slot (122), sliding block (23) slidingly arranged in sliding slot (122) and threadedly connected with lead screw (21), mounting plate (24) fixedly connected to the upper surface of sliding block (23), sliding member (25) slidingly arranged on the board surface of mounting plate (24), fixed cylinder (26) vertically arranged on the upper surface of sliding member (25), third motor (261) arranged in fixed cylinder (26), telescopic cylinder (262) slidingly arranged in fixed cylinder (26) and threadedly connected with the output shaft of third motor (261) on the inner wall, and clamping plate (27) arranged on the upper end surface of telescopic cylinder (262), the length direction of mounting plate (24) is parallel to the length direction of operation board (12), and sliding member (25) can slide along the length direction of mounting plate (24).

2. A stamping die according to claim 1, wherein: The upper surface of the stamping platform (13) is fixedly connected with a positioning plate (132) on both sides of the length direction.

3. A stamping die according to claim 2, wherein: The side wall of the sliding block (23) is slidingly fitted with the groove wall of the sliding slot (122).

4. The stamping die of claim 1, wherein: The upper surface of the mounting plate (24) is fixedly connected with a limiting block (241), the length direction of the limiting block (241) is parallel to the length direction of the mounting plate (24), the side wall of the limiting block (241) is obliquely arranged, the side walls of the limiting block (241) are close to each other on the side close to the mounting plate (24), the surface opposite to the mounting plate (24) of the sliding member (25) is provided with a limiting sliding groove (251) matched with the limiting block (241), and the sliding member (25) is slidingly arranged on the limiting block (241) through the limiting sliding groove (251).

5. A stamping die according to claim 4, wherein: The third motor (261) is a stepping motor.

6. The stamping die of claim 1, wherein: The outer peripheral wall of the telescopic cylinder (262) is provided with a limiting groove (264), and the inner peripheral wall of the fixed cylinder (26) is provided with a limiting piece (263) matched with the limiting groove (264), and the limiting piece (263) slides in the limiting groove (264).

7. The stamping die of claim 1, wherein: The stamping die further comprises a connecting column (31) vertically arranged on the upper surface of the operating plate (12), a fixing plate (32) horizontally arranged on the upper end of the connecting column (31), an electric push rod (33) arranged on the upper surface of the fixing plate (32), and a sliding plate (34) slidingly arranged between the fixing plate (32) and the operating plate (12), the pushing rod end of the electric push rod (33) penetrates the fixing plate (32) and is fixedly connected with the sliding plate (34), the surface of the sliding plate (34) away from the fixing plate (32) is provided with a stamping block (35) corresponding to the stamping table (13), the upper surface of the stamping table (13) is provided with a recessed groove (131) in the shape of a cooling flow channel, and the surface of the stamping block (35) away from the sliding plate (34) is provided with a protruding piece matched with the groove (131).

8. A stamping die according to claim 7, wherein: The sliding plate (34) is slidingly sleeved on the peripheral wall of the connecting column (31).

Images