A punch selection mechanism for a punch press

Abstract

The application belongs to the technical field of stamping, and particularly relates to a stamping die selecting mechanism, which comprises a shaping part, a transfer part and a pressurizing part, the transfer part is symmetrically arranged on the front and back sides of the shaping part, and the pressurizing part is arranged on the upper part of the shaping part; the shaping part comprises a supporting frame, an inner pressure column, a scanner and a pre-pressing part; the pre-pressing part is arranged on the left side of the inner cavity of the supporting frame, and the inner pressure column is slidably connected with the right side of the inner cavity of the supporting frame. The device pre-processes the stamping material through the pre-pressing part on the left side, so that the material is roughly shaped and the internal stress of the material is released, thereby avoiding the problem that the stamping module rebounds after stamping due to the effect of the internal stress of the material when the material is directly stamped, and further avoiding the problem that the final product deviates from the expected structure, and solving the problem that the material is easily damaged due to excessive one-time stamping force, thereby playing a protective effect on the material and reducing the loss caused by material damage.

Description

Technical Field

[0001] This invention belongs to the field of stamping technology, specifically a stamping die selection mechanism. Background Technology

[0002] Stamping dies are special process equipment used in cold stamping to process metal or non-metal into parts. They are called cold stamping dies, or simply cold stamping dies. Stamping is a pressure processing method that uses dies mounted on a press to apply pressure to materials at room temperature, causing them to separate or undergo plastic deformation, thereby obtaining the desired parts.

[0003] Traditional stamping processes are affected by material mechanical properties such as uneven internal stress, springback during forming, and local warping and twisting, which can easily lead to problems such as excessive flatness and insufficient contour accuracy of components. Summary of the Invention

[0004] To address the shortcomings of existing technologies, the technical solution adopted by this invention is: a stamping die selection mechanism, comprising a shaping component, a transfer component, and a pressurizing component, wherein the transfer component is symmetrically arranged on the front and rear sides of the shaping component, and the pressurizing component is arranged on the upper part of the shaping component; The shaping component includes a support frame, a scanner, and a pre-compression component; The pre-compression component is located on the left side of the inner cavity of the support frame, and the scanner is inserted into the middle of the inner cavity of the support frame; The pre-compression component includes a pressure base, a compression pusher, and a propulsion top cylinder; The top of the inner cavity of the pressurizing base is evenly connected with connecting pipes. The top end of the connecting pipes is connected to the bottom of the inner cavity of the compression push cylinder through an insertion interface. The axis of the bottom end of the compression push cylinder is connected to the axis of the upper surface of the pressurizing base. The bottom end of the propulsion top cylinder is rotatably connected to the top of the compression push cylinder cavity through a rotating cutting groove. The two sides of the propulsion top cylinder cavity are symmetrically provided with through cutting grooves. The top of the propulsion top cylinder cavity is symmetrically provided with pressure-sensitive pads. The plate material is transported to the left side of the upper surface of the support frame. The pressure base pressurizes the compression push cylinder cavity through the connecting pipe, pushing the propulsion top cylinder upward. The pressure component at the top pre-presses the plate into a concave shape.

[0005] Furthermore, the shaping component also includes: A torsion pad cylinder, wherein a threaded rotating rod is slidably connected to the axial center of the inner wall of the torsion pad cylinder via a connecting rod; A threaded sleeve, the inner wall of which is threadedly connected to the outer surface of a threaded rod, the outer surface of which is inserted into the inner wall of a support frame via a fixing plate, the connecting rod of a torque pad is inserted into the axis of the inner cavity of the threaded rod, and drives the threaded rod to rotate via a sliding groove. When the threaded rod rises along the threaded sleeve, the threaded rod will also slide relative to the connecting rod of the torque pad, but the connecting rod of the torque pad can still drive the threaded rod to rotate. The pusher column is rotatably connected at its bottom end to the top end of the threaded rotating rod, and its outer surface is slidably connected to the right side of the inner cavity of the support frame.

[0006] Furthermore, the pre-compression component also includes: The torque drum has its bottom end inserted into the center of the upper surface of the pressure base, and the outer surface of the torque drum housing is sleeved with the inner wall of the compression push cylinder. The pressure base and the torque drum are always kept at a fixed point. The built-in turntable has its bottom end connected to the top end of the torque drum via a sliding pull rod. A filling top plate, the outer surface of which is sleeved with the top of the inner wall of the propulsion top cylinder, and the lower surface of which is inserted into the upper surface of the built-in turntable; The extension lever arm is symmetrically inserted on both sides of the outer surface of the built-in turntable. The end of the extension lever arm away from the built-in turntable is rotatably connected to a sliding ball, and the outer surface of the sliding ball is slidably connected to the inner wall of the support frame through a sliding groove. When the push cylinder slides upward, the torsion cylinder, the built-in turntable and the filling top plate are all kept in the initial position, and the extension lever arm also slides along the groove of the push cylinder.

[0007] Furthermore, the pressurizing component includes: The control box has supporting feet evenly inserted into its bottom; A control tensioner, the bottom end of which is inserted into the top of the control box; The counterweight plate has its back side inserted into the top of the tension control device via a retainer, and its front side has an image groove. A buffer plate, wherein sliding connecting rods are symmetrically inserted into both sides of the inner cavity of the buffer plate, and the top of the sliding connecting rods is inserted into the inner cavity of the counterweight plate. A preload sleeve, the top of which is inserted into the bottom end of the left sliding connecting rod; A molded sleeve, the top of which is inserted into the bottom end of the right sliding connecting rod.

[0008] Furthermore, the preload sleeve includes: An outer pressure shell, wherein an extended outer ring is fitted onto the bottom of the outer surface of the outer pressure shell, and an isolation disc is provided on the upper part of the inner wall of the outer pressure shell; An inverted turntable is provided, wherein the top of the inverted turntable housing is inserted into the axis at the top of the inner wall of the outer pressure shell, and the bottom of the inverted turntable shaft is inserted into the axis at the upper surface of the isolation plate. The isolation plate is suspended by the inverted turntable at the axis of the outer pressure shell, and the outer surface of the isolation plate does not contact the inner wall of the outer pressure shell, leaving an annular area. Torque arms are evenly inserted into the outer surface of the inverted turntable shaft.

[0009] Furthermore, the preload sleeve also includes: A fixed end tube is provided, the top of which is inserted into the end of the torque arm away from the inverted turntable. A fastening bolt is threaded to the top of the fixed end tube, and the bottom end of the fastening bolt extends into the interior of the fixed end tube. The fixed end tube is confined within the annular area reserved between the isolation plate and the outer pressure shell. The rotating joint has an outer surface that is rotatably connected to the bottom of the inner wall of the fixed end cylinder, and an electric motor is provided in the inner cavity of the rotating joint. A conical grinding tool, wherein the axis of the conical grinding tool is inserted into the shaft of an electric motor, and tightening the fastening bolt at the top of the fixed end cylinder can close the bottom opening of the fixed end cylinder, thereby reinforcing the rotating joint at the bottom of the fixed end cylinder, making the rotating joint unable to rotate, and thus limiting the tip angle of the conical grinding tool.

[0010] Furthermore, the transfer component includes: An external control box, wherein bent connecting rods are evenly inserted into the bottom of the external control box, and the bottom end of the bent connecting rods is inserted into the outer surface of the support frame; A chute guide plate, the outer surface of which is inserted into the front of the outer control box; The modified gripper is located at the front of the external control box and is slidably connected to the inner wall of the slide guide plate via a control linkage. The external control box is equipped with a traction mechanism, which can drive the modified gripper to move directionally to a designated area along the guide groove of the slide guide plate via the control linkage. Furthermore, the traction mechanism can drive the modified gripper closer to the central plate by pushing the control linkage.

[0011] Furthermore, the modified gripper includes: A guide shaft, wherein both the upper and lower sides of the outer surface of the guide shaft are rotatably connected to biasing folding plates; The double-ended thruster has its middle part of the outer surface of the housing connected to the end of the control link away from the guide plate of the slide groove, and its two ends connected to the outer surfaces of the upper and lower bias plates respectively.

[0012] Furthermore, the modified gripper also includes: An external blower, the outer surface of which is inserted into the outer surface of the deflecting baffle; An internally inflatable air cushion is inserted into the inner cavity of a biased folding plate via a slot, and the outlet of an external blower is inserted into the inner cavity of the internally inflatable air cushion.

[0013] The beneficial effects of this invention are as follows: 1. This device pre-processes the stamping material through the pre-pressing component on the left side, which roughly shapes the material while releasing the internal stress of the material. This avoids the problem that the stamped part will spring back due to the internal stress of the material when the material is directly stamped, which would cause the final product to deviate significantly from the expected structure. At the same time, it solves the problem that the material is easily damaged due to excessive one-time stamping pressure, thus protecting the material and reducing the loss caused by material damage.

[0014] 2. The push cylinder does not compress the sheet into a cylindrical structure in one go. Instead, it continuously impacts the sheet by repeatedly controlling the pressure of the compression push cylinder through the bottom pressure base. This gradually counteracts the sheet's own rebound and achieves the shaping effect. During each impact of the push cylinder, the pressure-sensitive pad at the top limits the impact force. During the impact of the push cylinder, the internal torsion cylinder drives the push cylinder to rotate at a relatively slow and uniform speed by twisting the internal turntable and extending the lever arm, ensuring that the internal stress of the sheet is relatively uniform.

[0015] 3. After the die is stamped, it is pushed into the outer shell by the pusher cylinder. After the top of the die contacts the lower surface of the isolation plate, the inverted turntable drives all the fixed end cylinders to rotate through the torque arm. At this time, the rotating conical grinding cutter performs precise leveling on the easily warped areas of the die's outer surface, thereby solving the problem of flatness and contour control.

[0016] 4. When the sheet is stamped, its side will shrink towards the recess. At this time, the inner air cushion is depressurized to reduce the squeezing friction between the inner air cushion and the outer surface of the sheet. This, combined with the continuous impact action of the push cylinder, allows the side of the sheet to slide relative to each other, reducing the resistance on the sheet. At the same time, it prevents the sheet from falling out of the clamping area of ​​the modified claw, which would cause the modified claw to be unable to clamp the sheet in time and cause the sheet to fall off. Attached Figure Description

[0017] Figure 1 This is the front view of the present invention; Figure 2 This is a cross-sectional view of the present invention; Figure 3 This is a cross-sectional view of the support frame of the present invention; Figure 4 This is a cross-sectional view of the pre-compression component of the present invention; Figure 5 This is a schematic diagram of the pressurizing component of the present invention; Figure 6 This is a cross-sectional view of the outer pressure shell of the present invention; Figure 7 This is the present invention. Figure 6 Enlarged view of point A in the middle; Figure 8 This is a schematic diagram of the structure of the transfer component of the present invention; Figure 9 This is a schematic diagram of the modified gripper structure of the present invention.

[0018] In the diagram: 1. Shaping component; 2. Transfer component; 3. Pressurizing component; 11. Support frame; 12. Threaded sleeve; 13. Torque pad; 14. Threaded rotating rod; 15. Pushing column; 16. Scanner; 5. Pre-compression component; 51. Pressurizing base; 52. Connecting pipe; 53. Compression pusher; 54. Pushing top cylinder; 55. Pressure-sensing pad; 56. Torque rotating cylinder; 57. Built-in turntable; 58. Extension arm; 59. Sliding ball; 510. Filling top plate; 31. Control box; 32. Control tensioner; 33. Counterweight plate; 34. Buffer plate; 35. Pre-compression sleeve; 36. Shaping sleeve; 351. Outer pressure shell; 352. Isolation disc; 353. Inverted turntable; 354. Torque swing arm; 355. Fixed end sleeve; 356. Rotating joint; 357. Conical grinding tool; 21. External control box; 22. Slide guide plate; 23. Bending connecting rod; 4. Modified gripper; 41. Control connecting rod; 42. Offset folding plate; 43. Double-end thruster; 44. Guide shaft; 45. External blower; 46. Internal air cushion. Detailed Implementation

[0019] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments. The embodiments of the present invention are given for illustrative and descriptive purposes only, and are not intended to be exhaustive or to limit the invention to the forms disclosed. Many modifications and variations will be apparent to those skilled in the art. The embodiments were chosen and described to better illustrate the principles and practical application of the invention, and to enable those skilled in the art to understand the invention and design various embodiments with various modifications suitable for a particular purpose.

[0020] Example 1, please refer to Figures 1-5 The present invention provides a technical solution: a stamping die selection mechanism, including a shaping component 1, a transfer component 2 and a pressurizing component 3, wherein the transfer component 2 is symmetrically arranged on the front and rear sides of the shaping component 1, and the pressurizing component 3 is arranged on the upper part of the shaping component 1; The shaping component 1 includes a support frame 11, a scanner 16, and a pre-compression component 5; The pre-compression component 5 is located on the left side of the inner cavity of the support frame 11, and the scanner 16 is inserted into the middle of the inner cavity of the support frame 11. The pre-compression component 5 includes a pressure base 51, a compression pusher 53, and a pusher top 54; A connecting tube 52 is evenly inserted into the top of the inner cavity of the pressurizing base 51. The top end of the connecting tube 52 is inserted into the bottom of the inner cavity of the compression push cylinder 53 through the insertion interface. The axis of the bottom end of the compression push cylinder 53 is inserted into the axis of the upper surface of the pressurizing base 51. The bottom end of the push cylinder 54 is rotatably connected to the top of the inner cavity of the compression push cylinder 53 through a rotating cutting groove. The two sides of the inner cavity of the push cylinder 54 are symmetrically provided with through cutting grooves. The top of the inner cavity of the push cylinder 54 is symmetrically provided with pressure-sensitive pads 55. The plate material is transported to the left side of the upper surface of the support frame 11. The pressure base 51 pressurizes the inner cavity of the compression push cylinder 53 through the connecting pipe 52, pushing the push cylinder 54 upward. The pressure component 3 at the top pre-presses the plate to make the plate concave.

[0021] The shaping component 1 also includes: Torque cushion 13, with a threaded rotating rod 14 slidably connected at the axis of the inner wall of the torsion cushion 13 via a connecting rod; The inner wall of the threaded sleeve 12 is threadedly connected to the outer surface of the threaded rotating rod 14. The outer surface of the threaded sleeve 12 is inserted into the inner wall of the support frame 11 through a fixing plate. The connecting rod of the torque pad 13 is inserted into the axis of the inner cavity of the threaded rotating rod 14. The threaded rotating rod 14 is driven to rotate through the sliding groove. When the threaded rotating rod 14 rises along the threaded sleeve 12, the threaded rotating rod 14 will also slide relative to the connecting rod of the torque pad 13. However, the connecting rod of the torque pad 13 can still drive the threaded rotating rod 14 to rotate. The pusher column 15 is pushed forward, and its bottom end is rotatably connected to the top end of the threaded rotating rod 14. The outer surface of the pusher column 15 is slidably connected to the right side of the inner cavity of the support frame 11.

[0022] Preload component 5 also includes: Torque drum 56, the bottom end of which is inserted into the axis of the upper surface of the pressure base 51, the outer surface of the housing of torque drum 56 is sleeved with the inner wall of the compression push cylinder 53, and the pressure base 51 and torque drum 56 are always kept at a fixed point. The bottom of the built-in turntable 57 is connected to the top of the torque drum 56 via a sliding rod; The filling top plate 510 has its outer surface fitted into the top of the inner wall of the push cylinder 54, and its lower surface inserted into the upper surface of the built-in turntable 57. The extension lever 58 is symmetrically inserted on both sides of the outer surface of the built-in turntable 57. The end of the extension lever 58 away from the built-in turntable 57 is rotatably connected to the sliding ball 59, and the outer surface of the sliding ball 59 is slidably connected to the inner wall of the support frame 11 through the sliding groove. When the push cylinder 54 slides upward, the torque cylinder 56, the built-in turntable 57 and the filling top plate 510 are all kept in the initial position, and the extension lever 58 also slides along the groove of the push cylinder 54.

[0023] The pressurizing component 3 includes: The bottom of the control box 31 is evenly fitted with supporting feet. The bottom end of the control tensioner 32 is inserted into the top of the control box 31; The counterweight plate 33 has its back end inserted into the top end of the control tensioner 32 via a clip, and the front end of the counterweight plate 33 has an image groove. The buffer plate 34 has sliding connecting rods symmetrically inserted on both sides of its inner cavity, and the top of the sliding connecting rods is inserted into the inner cavity of the counterweight plate 33. The top of the preload sleeve 35 is inserted into the bottom end of the left sliding connecting rod; The top of the shaped sleeve 36 is inserted into the bottom end of the right sliding connecting rod.

[0024] After placing the sheet material to be stamped on the left side of the upper surface of the support frame 11, the modified jaws 4 of the front and rear transfer components 2 clamp the two sides of the sheet material, and then transfer the sheet material directly above the pre-pressing component 5 for pressurization.

[0025] The pressurizing base 51 pressurizes the inside of the compression push cylinder 53 through the connecting pipe 52. Under the action of air pressure, the compression push cylinder 53 descends and pushes the push cylinder 54 upward. At this time, the top two sides of the push cylinder 54 contact the lower surface of the plate. At the same time, the tensioner 32 also presses down the counterweight plate 33, so that the pre-compression sleeve 35 on the left side fits on the outer surface of the plate. The plate is concave upward due to the pushing force of the top of the push cylinder 54. Since the push cylinder 54 is not a solid structure and the pressure is not large, the plate will gradually concave into the inner wall of the pre-compression sleeve 35 and gradually form a cylindrical structure.

[0026] The push cylinder 54 does not compress the sheet into a cylindrical structure in one go. Instead, it continuously impacts the sheet by repeatedly controlling the pressure of the compression push cylinder 53 through the bottom pressure base 51. During each impact of the push cylinder 54, the push cylinder 54 limits the impact force through the pressure-sensing pad 55 at the top, thereby achieving pre-compression and avoiding the problem of sheet springback caused by excessive one-time impact pressure.

[0027] During the impact of the push cylinder 54, the internal torsion cylinder 56 drives the push cylinder 54 to rotate slowly and uniformly by twisting the internal turntable 57 and the extension lever arm 58, ensuring that the lower surface of the plate is subjected to relatively uniform force, and the rotation of the push cylinder 54 does not interfere with the upward sliding motion of the push cylinder 54.

[0028] Example 2, please refer to Figures 1-9 The present invention provides a technical solution: based on embodiment 1, the pre-compression sleeve 35 includes: An outer pressure shell 351 has an extended outer ring fitted onto the bottom of its outer surface, and an isolation disc 352 is provided on the upper part of the inner wall of the outer pressure shell 351. The inverted turntable 353 has its top end inserted into the axis at the top of the inner wall of the outer pressure shell 351, and its bottom end inserted into the axis at the upper surface of the isolation plate 352. The isolation plate 352 is suspended by the inverted turntable 353 at the axis of the outer pressure shell 351. The outer surface of the isolation plate 352 does not contact the inner wall of the outer pressure shell 351, leaving an annular area. Torque arm 354 is evenly inserted into the outer surface of the shaft of inverted turntable 353.

[0029] The preload sleeve 35 also includes: The top of the fixed end cylinder 355 is inserted into the end of the torque arm 354 away from the inverted turntable 353. The top of the fixed end cylinder 355 is threaded with a fastening bolt, and the bottom end of the fastening bolt extends into the interior of the fixed end cylinder 355. The fixed end cylinder 355 is confined within the annular area reserved between the isolation plate 352 and the outer pressure shell 351. Rotating joint 356, the outer surface of rotating joint 356 is rotatably connected to the bottom of the inner wall of fixed end cylinder 355, and an electric motor is provided in the inner cavity of rotating joint 356; The conical grinding cutter 357 is inserted into the shaft of the electric motor at its axis. Tightening the fastening bolt at the top of the fixed end cylinder 355 can close the bottom opening of the fixed end cylinder 355, thereby reinforcing the rotating joint 356 at the bottom of the fixed end cylinder 355, making the rotating joint 356 unable to rotate, and thus limiting the tip angle of the conical grinding cutter 357.

[0030] Transfer component 2 includes: An external control box 21 has bent connecting rods 23 evenly inserted into its bottom, and the bottom end of the bent connecting rods 23 is inserted into the outer surface of the support frame 11. The outer surface of the slide guide plate 22 is inserted into the front of the outer control box 21; The modified gripper 4 is located at the front of the outer control box 21 and is slidably connected to the inner wall of the slide guide plate 22 via the control link 41. The outer control box 21 is equipped with a traction mechanism, which can drive the modified gripper 4 to move along the guide groove of the slide guide plate 22 to a designated area via the control link 41. The traction mechanism can also drive the modified gripper 4 to move closer to the plate in the middle by pushing the control link 41.

[0031] Modified gripper 4 includes: The guide shaft 44 has deflection plates 42 rotatably connected to both the upper and lower sides of its outer surface. The double-ended thruster 43 has its middle part on the outer surface of its housing connected to the end of the control link 41 away from the guide plate 22. The two ends of the double-ended thruster 43 are respectively connected to the outer surfaces of the upper and lower bias plates 42.

[0032] Modified gripper 4 also includes: External blower 45, the outer surface of external blower 45 is inserted into the outer surface of deflection baffle 42; An inner air cushion 46 is inserted into the inner cavity of the bias folding plate 42 via a slot, and the air outlet of the outer blower 45 is inserted into the inner cavity of the inner air cushion 46.

[0033] After the sheet metal is roughly shaped on the inner wall of the outer pressure shell 351, the pre-pressing sleeve 35 is lifted up. At this time, the modified clamp 4 pulls out the stamped mold and then moves the mold to the area on the right side of the upper surface of the support frame 11. It is then fitted onto the outer surface of the push pressure column 15 and the forming sleeve 36 is used for stamping and shaping.

[0034] After the die stamping is completed, the die is transferred to the left side. When the die moves through the area where the scanner 16 is located, the structure of its inner wall and the stamping shape can be observed. Then the die is pushed into the outer pressure shell 351 by the top cylinder 54. After the top of the die contacts the lower surface of the isolation plate 352, the inverted turntable 353 drives all the fixed end cylinders 355 to rotate through the torque rotating arm 354. At this time, the rotating conical grinding cutter 357 performs precise leveling processing on the easily warped areas of the outer surface of the die, thereby solving the problem of flatness and contour control.

[0035] When the modified gripper 4 is clamping the side of the plate, the double-ended pusher 43 drives the bias plates 42 on both sides to squeeze around the guide shaft 44 towards the outer surface of the plate by synchronously pushing the bias plates 42 on both sides. At the same time, the external blower 45 pressurizes the inner air pad 46 to expand the inner air pad 46, thereby ensuring contact with the outer surface of the plate and achieving an effective clamping effect. When the plate is being pressed, its side part will shrink towards the concave area. At this time, the inner air pad 46 is depressurized to reduce the squeezing friction between the inner air pad 46 and the outer surface of the plate, so that the side of the plate can slide relative to each other, while preventing the plate from leaving the clamping area of ​​the modified gripper 4.

[0036] After the die is processed inside the device, the die is moved out from the right side of the support frame 11, and the modified jaws 4 on both sides are released to remove the die after stamping.

[0037] Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of them. All other embodiments obtained by those skilled in the art and related fields based on the embodiments of the present invention without inventive effort should fall within the scope of protection of the present invention. Structures, devices, and operating methods not specifically described and explained in the present invention, unless otherwise specified or limited, shall be implemented according to conventional means in the art.

Claims

1. A stamping die selection mechanism, comprising a shaping component (1), a transfer component (2) and a pressurizing component (3), wherein the transfer component (2) is symmetrically arranged on the front and rear sides of the shaping component (1), and the pressurizing component (3) is arranged on the upper part of the shaping component (1); Its features are: The shaping component (1) includes a support frame (11), a scanner (16), and a pre-compression component (5). The pre-pressing component (5) is located on the left side of the inner cavity of the support frame (11), and the scanner (16) is inserted into the middle of the inner cavity of the support frame (11). The pre-compression component (5) includes a pressure base (51), a compression pusher (53), and a pusher top cylinder (54). A connecting tube (52) is evenly inserted into the top of the inner cavity of the pressurizing base (51). The top end of the connecting tube (52) is inserted into the bottom of the inner cavity of the compression push cylinder (53) through the insertion interface. The axis of the bottom end of the compression push cylinder (53) is inserted into the axis of the upper surface of the pressurizing base (51). The bottom end of the push cylinder (54) is rotatably connected to the top of the inner cavity of the compression push cylinder (53) through a rotating cutting groove. The inner cavity of the push cylinder (54) is symmetrically provided with through cutting grooves on both sides. The top of the inner cavity of the push cylinder (54) is symmetrically provided with pressure-sensitive pads (55). The plate material is transported to the left side of the upper surface of the support frame (11). The pressure base (51) pressurizes the inner cavity of the compression push cylinder (53) through the connecting pipe (52) to push the push cylinder (54) upward. The pressure component (3) at the top pre-presses the plate to make the plate concave.

2. The stamping die selection mechanism according to claim 1, characterized in that: The shaping component (1) also includes: Torque cushion (13), with a threaded rotating rod (14) slidably connected to the axial center of the inner wall of the torsion cushion (13) via a connecting rod. Threaded sleeve (12), the inner wall of the threaded sleeve (12) is threadedly connected to the outer surface of the threaded rotating rod (14), and the outer surface of the threaded sleeve (12) is inserted into the inner wall of the support frame (11) through a fixing plate; The pusher column (15) is rotatably connected at its bottom end to the top end of the threaded rotating rod (14), and the outer surface of the pusher column (15) is slidably connected to the right side of the inner cavity of the support frame (11).

3. The stamping selection mechanism of the stamping die according to claim 1, characterized in that: The pre-compression component (5) also includes: Torque cylinder (56), the bottom end of the torque cylinder (56) is inserted into the axis of the upper surface of the pressure base (51), and the outer surface of the housing of the torque cylinder (56) is sleeved with the inner wall of the compression push cylinder (53). Built-in turntable (57), the bottom end of which is inserted into the top end of torque drum (56) via a sliding pull rod; A filling top plate (510) is fitted with the top of the inner wall of the push cylinder (54) on its outer surface, and the lower surface of the filling top plate (510) is inserted into the upper surface of the built-in turntable (57). An extension arm (58) is symmetrically inserted on both sides of the outer surface of the built-in turntable (57). The end of the extension arm (58) away from the built-in turntable (57) is rotatably connected to a sliding ball (59), and the outer surface of the sliding ball (59) is slidably connected to the inner wall of the support frame (11) through a groove.

4. The stamping die selection mechanism according to claim 1, characterized in that: The pressurizing component (3) includes: The control box (31) has supporting feet evenly inserted at its bottom; A control tensioner (32) is inserted at its bottom end into the top of a control box (31); The counterweight plate (33) has its back end inserted into the top end of the control tensioner (32) via a ferrule, and the front end of the counterweight plate (33) has an image groove. The buffer partition (34) has sliding connecting rods symmetrically inserted on both sides of its inner cavity, and the top of the sliding connecting rods is inserted into the inner cavity of the counterweight plate (33). A preload sleeve (35) is inserted at the top of the preload sleeve (35) into the bottom end of the left sliding connecting rod; A shaping sleeve (36) is inserted at the top of which is connected to the bottom of the right sliding link.

5. The stamping die selection mechanism according to claim 4, characterized in that: The preload sleeve (35) includes: An outer pressure shell (351) is provided with an extended outer ring fitted at the bottom of its outer surface and an isolation disc (352) is provided at the upper part of the inner wall of the outer pressure shell (351). An inverted turntable (353) has its top end inserted into the center of the top of the inner wall of the outer pressure shell (351), and the bottom end of the rotating shaft of the inverted turntable (353) is inserted into the center of the upper surface of the isolation disk (352). Torque arm (354) is evenly inserted into the outer surface of the inverted turntable (353) shaft.

6. The stamping die selection mechanism according to claim 5, characterized in that: The preload sleeve (35) also includes: A fixed end tube (355) is inserted at the top of a torque arm (354) away from the inverted turntable (353). A fastening bolt is threaded to the top of the fixed end tube (355), and the bottom end of the fastening bolt extends into the interior of the fixed end tube (355). Rotating joint (356), the outer surface of the rotating joint (356) is rotatably connected to the bottom of the inner wall of the fixed end cylinder (355), and an electric motor is provided in the inner cavity of the rotating joint (356). A conical grinding tool (357) is inserted into the shaft of an electric motor at its center.

7. The stamping die selection mechanism according to claim 1, characterized in that: The transfer component (2) includes: An external control box (21) is provided with bent connecting rods (23) evenly inserted at the bottom of the external control box (21), and the bottom end of the bent connecting rods (23) is inserted into the outer surface of the support frame (11). A slide guide plate (22) is inserted into the front of the outer control box (21) on its outer surface. The modified gripper (4) is set at the front of the outer control box (21) and is slidably connected to the inner wall of the slide guide plate (22) via the control linkage (41).

8. The stamping die selection mechanism according to claim 7, characterized in that: The modified gripper (4) includes: The guide shaft (44) has deflection plates (42) rotatably connected to both the upper and lower sides of its outer surface. The double-ended thruster (43) has its outer surface of the housing connected to the middle of the control link (41) at one end away from the guide plate (22), and its two ends are connected to the outer surfaces of the upper and lower bias plates (42) respectively.

9. The stamping die selection mechanism according to claim 8, characterized in that: The modified gripper (4) also includes: An external blower (45) is inserted into the outer surface of a deflecting baffle (42); An inner air cushion (46) is inserted into the inner cavity of a bias folding plate (42) via a slot, and the air outlet of an outer blower (45) is inserted into the inner cavity of the inner air cushion (46).

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