Sheet metal part stamping die

Abstract

The invention relates to a sheet metal part stamping die, and relates to the technical field of dies, the sheet metal part stamping die comprises a workbench, the edge of the top of the workbench is connected with a fixing frame, the top of the fixing frame is welded with a top plate, the middle of the top plate is connected with telescopic air cylinders in an arrayed mode, and the center of the bottom end of an upper die is connected with a die pressing end; positioning cylinders are arranged on the edges of the two sides of the upper mold, supporting rods are arrayed and connected to one side of the upper surface of the workbench, the tops of the supporting rods are movably connected with a lower mold through rotating joints, and a supporting seat is arranged on one side of each supporting rod; the adjusting frame is driven by the servo motor to move, the lower mold can be driven to incline, meanwhile, the ejector block is driven to eject out a sheet metal part, the lower mold is in an inclined state after ejection, and therefore the sheet metal part formed through the gravity factor automatically slides out of the lower mold to the surface of the workbench; and therefore, scalding or discomfort caused by manual taking of the high-temperature sheet metal parts is avoided.

Description

Technical Field

[0001] The present application relates to the field of mold technology, and in particular to a sheet metal stamping mold. Background Art

[0002] Automotive sheet metal stamping refers to the process of processing metal sheets into automotive sheet metal parts through equipment such as punching machines. During the stamping process, stamping dies are used for stamping. Due to the excessive stamping force, the stamping die and the stamped parts are prone to sticking.

[0003] Existing automotive sheet metal stamping dies often coat the inner wall of the die with appropriate lubricants to reduce friction and prevent sticking. However, with frequent stamping operations, the lubricant tends to gradually lose its lubricating effect due to use. This leads to sticking problems between the sheet metal and the die during the production process. At this time, the sheet metal needs to be knocked off manually. There are certain risks in the knocking off process, which can easily cause damage to the sheet metal, thereby affecting product quality. In addition, the temperature of the newly stamped sheet metal is relatively high due to the mechanical deformation and frictional heat that may be affected during the stamping process. This brings some inconvenience to subsequent operations and handling. The high-temperature sheet metal may cause burns or discomfort when it is manually picked up. Summary of the invention

[0004] The purpose of this application is to provide a sheet metal stamping die.

[0005] In the first aspect, the present application provides a sheet metal stamping die that adopts the following technical solution: A sheet metal stamping die comprises a workbench, a fixed frame is connected to the top edge of the workbench, a top plate is welded to the top of the fixed frame, a telescopic cylinder is arranged and connected to the middle of the top plate, the output end of the telescopic cylinder is connected to an upper die, the bottom center of the upper die is connected to a die end, positioning cylinders are arranged at both side edges of the upper die, a support rod is arranged and connected to one side of the upper surface of the workbench, the top of the support rod is movably connected to a lower die through a rotating joint, a support seat is arranged on one side of the support rod, the upper surface of the support seat is abutted against the bottom outer wall of the lower die, guide columns are connected to both sides of the top of the lower die, the guide columns match the positioning cylinders, a lower die core is arranged at the top center of the lower die, and the lower die core matches the die end.

[0006] By adopting the above technical scheme, the workbench plays the role of overall base support, and plays the role of supporting the telescopic cylinder and the upper mold through the fixed frame and the top plate. The upper mold can be pushed to move up and down through the telescopic cylinder, so as to push the die end to fit with the lower mold core of the lower mold, thereby realizing the stamping work of the sheet metal. During the stamping process, the guide column is embedded in the positioning cylinder to play a positioning function to avoid the position mismatch between the upper mold and the lower mold during the stamping process, thereby affecting the stamping effect. The support rod plays the role of supporting the lower mold. At the same time, the lower mold is connected to the support rod through a rotating joint so that the lower mold can rotate and tilt along the connection point of the support rod as the center of the circle. At the same time, the support seat plays an auxiliary supporting role. The support seat and the lower mold will abut when the lower mold is in a horizontal state, and will be separated from the support seat when the lower mold is tilted.

[0007] The workbench is provided with strip grooves at both side edges, and the strip grooves are provided on both sides of the support seat, the middle inner wall of the strip groove is connected with a screw rod through a bearing, and the outer wall of one side of the screw rod is threadedly connected with a moving block, and the moving block is embedded in the strip groove, and servo motors are provided at both ends of one side of the workbench, and the output ends of the two groups of servo motors are connected to the screw rods at corresponding positions, the servo motor drives the screw rod to rotate, and the rotation of the screw rod drives the moving block to perform translational movement.

[0008] By adopting the above technical solution, the strip groove plays a limiting role. After the sheet metal part is stamped and formed, the servo motor can be started. The servo motor drives the lead screw to rotate. The rotation of the lead screw drives the moving block to move in translation. The moving block plays a connecting and moving role and can drive the moving rod to move synchronously.

[0009] The top of the moving block is connected to a moving rod, one side of the top of the moving rod is connected to an adjustment frame, an inclined groove is arranged at the center of the adjustment frame, and both side outer walls of the lower mold are connected to movable columns through bearings, and the movable columns are embedded in the inclined groove.

[0010] By adopting the above technical solution, the moving rod can move synchronously with the moving block, and the movement of the moving rod drives the adjusting frame to perform synchronous translational movement. During the movement of the adjusting frame, the movable column is pushed to perform lifting movement. The lifting of the movable column drives the lower mold to tilt to a certain degree, thereby facilitating the removal of the stamped sheet metal parts to the outside of the lower mold.

[0011] Guide rails are provided at the bottom of the outer walls on both sides of the lower mold, a rack is movably embedded in one side of the guide rail, a telescopic connecting rod is connected to the bottom end of one side of the adjustment frame, and the bottom end of the telescopic connecting rod is movably connected to the rack through a rotating joint.

[0012] By adopting the above technical solution, the rack can perform translational movement along the guide rail at the edge of the lower mold, and the movement of the adjustment frame can drive the telescopic connecting rod to perform synchronous translational movement. The movement of the telescopic connecting rod pushes the rack to perform translational movement along the guide rail. At the same time, the telescopic connecting rod and the rack are interactively connected through a rotating joint, and the telescopic connecting rod has telescopic characteristics, so that the movement of the telescopic connecting rod during the tilting process of the lower mold can still push the rack to perform translational movement along the guide rail.

[0013] Drive boxes are arranged on both sides of the bottom end of the lower mold, a worm is connected to the middle of the drive box through a bearing, a threaded barrel is connected to the inner wall of one side of the bottom of the drive box through a bearing, a worm wheel is keyed to the bottom outer wall of the threaded barrel, the worm wheel is meshed with the worm, and one end of the worm near the edge of the lower mold passes through the drive box and is connected to a gear, which is meshed with the rack.

[0014] By adopting the above technical solution, the movement of the rack drives the gear to rotate, the rotation of the gear drives the worm to rotate synchronously, the rotation of the worm drives the worm wheel to rotate, thereby driving the threaded barrel to rotate, and the rotation of the threaded barrel drives the threaded push rod to perform lifting and lowering movements.

[0015] The lower mold is internally arranged with an active cavity, the top of the threaded barrel extends into the active cavity through the driving box, the top inner wall of the threaded barrel is threadedly connected with a threaded push rod, the end of the threaded push rod away from the threaded barrel passes through the lower mold core and is connected to a push block, the top of the push block and the lower mold core are on the same plane, limiting grooves are provided on both sides of the active cavity, limiting rods are connected on both sides of the bottom end of the push block, and the limiting rods are embedded in the limiting grooves.

[0016] By adopting the above technical solution, the limit rod is embedded in the limit groove to play a limiting role to prevent the ejector block and the threaded ejector rod from rotating. The threaded cylinder rotates to drive the threaded ejector rod to move up and down. The lifting and lowering of the threaded ejector rod drives the ejector block to eject or retract, so as to facilitate the ejection of the stamped sheet metal parts.

[0017] The surface of the die end is arranged with movable grooves, the top inner wall of the movable groove is connected with an electric telescopic rod, the output end of the electric telescopic rod is connected with a punch, and the electric telescopic rod drives the punch to move up and down.

[0018] By adopting the above technical solution, the movable groove plays a limiting role, and the punch can be pushed by the electric telescopic rod to perform riveting work on the nuts preset on the surface of the sheet metal.

[0019] A central groove is provided in the middle of the end of the punch away from the electric telescopic rod, a positioning rod is embedded in the central groove, a spring is connected to the end of the positioning rod close to the punch, and the end of the spring away from the positioning rod abuts against the inner wall of the central groove.

[0020] By adopting the above technical solution, the positioning rod plays a positioning role. When the preset nut is riveted on the sheet metal part, the positioning rod can be passed through the center of the nut to perform a limiting positioning effect, so as to facilitate accurate riveting by the punch.

[0021] A trigger switch is arranged at the center of the top inner wall of the central groove. The trigger switch is arranged at the center of the spring and is in the same straight line as the positioning rod.

[0022] By adopting the above technical solution, when the preset nut installation offset of the sheet metal part occurs, the positioning rod abuts against the edge of the nut during the descending process. As the die end descends, the positioning rod shrinks into the center groove. When the top of the positioning rod abuts against the trigger switch, the trigger switch is activated.

[0023] A warning light is arranged on one side of the top of the top plate, a controller is arranged on one side of the warning light, the controller is connected to the warning light and the trigger switch through electric wires, and a cooling pipe is arranged through the middle of the lower mold.

[0024] By adopting the above technical solution, when the top of the positioning rod abuts against the trigger switch, the trigger switch is activated to transmit the signal to the controller. The controller controls the warning light to light up to remind the staff to make corrections to avoid riveting deviation and thus affect the stamping quality of the sheet metal parts. The cooling pipe can be connected to an external water cooling pipe for auxiliary cooling.

[0025] In summary, the present application includes at least one of the following beneficial technical effects: 1. After the sheet metal is stamped, the upper mold is lifted by the telescopic cylinder, and the servo motor is started. The servo motor drives the screw to rotate, and the screw rotation drives the moving block to move in translation. The moving block plays a connecting and moving role and can drive the moving rod to move synchronously. The moving rod can move synchronously with the moving block. The movement of the moving rod drives the adjustment frame to move in synchronization. The movement of the adjustment frame can drive the lower mold to tilt and drive the ejector block to eject the sheet metal. After ejection, the lower mold is tilted at the same time, so that the formed sheet metal automatically slides out of the outside of the lower mold to the surface of the workbench due to gravity factors, thereby avoiding burns or discomfort caused by high-temperature sheet metal when manually picking up; 2. When riveting the preset nuts on the sheet metal parts, the positioning rod can be passed through the center of the nut to perform limit positioning, so as to facilitate precise riveting by the punch. While the sheet metal parts are being stamped, the punch is pushed by the electric telescopic rod to rivet the nuts preset on the surface of the sheet metal parts. When the preset nuts on the sheet metal parts are installed offset, the positioning rod abuts against the edge of the nut during the descent process. As the die end descends, the positioning rod shrinks into the center groove. When the top of the positioning rod abuts against the trigger switch, the trigger switch is activated to transmit the signal to the controller. The controller controls the warning light to light up to remind the staff to make corrections to avoid riveting offset and thus affect the stamping quality of the sheet metal parts. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the present application; Figure 2 This is a schematic diagram of the connection structure between the lower mold and the support rod of an embodiment of the present application; Figure 3 It is a schematic diagram of the internal structure of the drive box of an embodiment of the present application; Figure 4 It is a schematic diagram of the connection structure between the adjustment frame and the movable column of an embodiment of the present application; Figure 5 is a schematic diagram of the connection structure between the rack and the gear in an embodiment of the present application; Figure 6 is a schematic diagram of the punch structure of an embodiment of the present application; Description of the accompanying drawings: 1, workbench; 2, fixed frame; 3, top plate; 4, telescopic cylinder; 5, upper mold; 6, die end; 7, positioning cylinder; 8, support rod; 9, lower mold; 91, movable cavity; 10, support seat; 11, guide column; 12, lower mold core; 13, strip groove; 14, screw rod; 15, moving block; 16, servo motor; 17, moving rod; 18, adjustment frame; 19, inclined groove; 20, movable column; 21, guide Rail; 22, rack; 23, telescopic connecting rod; 24, drive box; 25, worm; 26, threaded cylinder; 27, worm wheel; 28, gear; 29, threaded push rod; 30, push block; 31, limit groove; 32, limit rod; 33, movable groove; 34, electric telescopic rod; 35, punch; 36, center groove; 37, positioning rod; 38, spring; 39, trigger switch; 40, warning light; 41, controller; 42, cooling pipe. DETAILED DESCRIPTION

[0027] The following is combined with Figure 1 - Attachment Figure 6 , further details of this application are given.

[0028] Embodiment: A sheet metal stamping die comprises a workbench 1, a fixed frame 2 is connected to the top edge of the workbench 1, a top plate 3 is welded to the top of the fixed frame 2, a telescopic cylinder 4 is arranged and connected to the middle of the top plate 3, an upper die 5 is connected to the output end of the telescopic cylinder 4, a die end 6 is connected to the bottom center of the upper die 5, and positioning cylinders 7 are arranged at the edges of both sides of the upper die 5, a support rod 8 is arranged and connected to one side of the upper surface of the workbench 1, a lower die 9 is movably connected to the top of the support rod 8 through a rotating joint, a support seat 10 is arranged on one side of the support rod 8, the upper surface of the support seat 10 abuts against the outer wall of the bottom end of the lower die 9, guide columns 11 are connected to both sides of the top of the lower die 9, the guide columns 11 are matched with the positioning cylinder 7, a lower die core 12 is arranged at the top center of the lower die 9, and the lower die core 12 matches the die end 6, the workbench 1 plays the role of overall base support, and supports the telescopic cylinder 4 and the upper die 5 through the fixed frame 2 and the top plate 3. The telescopic cylinder 4 can push the upper mold 5 to perform lifting and lowering movements, thereby pushing the die end 6 to fit with the lower mold core 12 of the lower mold 9, thereby realizing the stamping work of the sheet metal part. During the stamping process, the guide column 11 is embedded in the positioning cylinder 7 to play a positioning function to avoid the position mismatch between the upper mold 5 and the lower mold 9 during the stamping process, thereby affecting the stamping effect. The support rod 8 plays the role of supporting the lower mold 9. At the same time, the lower mold 9 is connected to the support rod 8 through a rotating joint, so that the lower mold 9 rotates and tilts along the connection point of the support rod 8 as the center of the circle. At the same time, the support seat 10 plays an auxiliary supporting role. The support seat 10 and the lower mold 9 will abut when the lower mold 9 is in a horizontal state, and the lower mold 9 will be separated from the support seat 10 when it is tilted.

[0029] The workbench 1 is provided with strip grooves 13 at both side edges, and the strip grooves 13 are provided on both sides of the support seat 10. The middle inner wall of the strip groove 13 is connected with a screw rod 14 through a bearing, and the outer wall of one side of the screw rod 14 is threadedly connected with a moving block 15, and the moving block 15 is embedded in the strip groove 13. Servo motors 16 are provided at both ends of one side of the workbench 1. The output ends of the two groups of servo motors 16 are connected to the corresponding screw rods 14. The servo motor 16 drives the screw rod 14 to rotate, and the rotation of the screw rod 14 drives the moving block 15 to perform translational motion. The strip groove 13 plays a limiting role. After the sheet metal part is stamped and formed, the servo motor 16 can be started, and the servo motor 16 drives the screw rod 14 to rotate, and the rotation of the screw rod 14 drives the moving block 15 to perform translational motion. The moving block 15 plays a connecting and moving role and can drive the moving rod 17 to perform synchronous motion.

[0030] A moving rod 17 is connected to the top of the moving block 15, and an adjusting frame 18 is connected to one side of the top of the moving rod 17. An inclined groove 19 is arranged at the center of the adjusting frame 18. The outer walls on both sides of the lower mold 9 are connected to movable columns 20 through bearings. The movable columns 20 are embedded in the inclined grooves 19. The moving rod 17 can move synchronously with the moving block 15. The movement of the moving rod 17 drives the adjusting frame 18 to perform synchronous translational movement. During the movement of the adjusting frame 18, the movable column 20 is pushed to perform lifting movement. The lifting of the movable column 20 drives the lower mold 9 to tilt to a certain degree, so as to facilitate the removal of the stamped sheet metal parts to the outside of the lower mold 9.

[0031] Guide rails 21 are provided at the bottom of the outer walls on both sides of the lower mold 9, and a rack 22 is movably embedded in one side of the guide rail 21. A telescopic connecting rod 23 is connected to the bottom end of one side of the adjusting frame 18. The bottom end of the telescopic connecting rod 23 is movably connected to the rack 22 through a rotating joint. The rack 22 can perform translational movement along the guide rail 21 at the edge of the lower mold 9. The movement of the adjusting frame 18 can drive the telescopic connecting rod 23 to perform synchronous translational movement. The movement of the telescopic connecting rod 23 pushes the rack 22 to perform translational movement along the guide rail 21. At the same time, the telescopic connecting rod 23 and the rack 22 are interactively connected through a rotating joint. The telescopic connecting rod 23 has a telescopic characteristic, so that the movement of the telescopic connecting rod 23 during the tilting process of the lower mold 9 can still push the rack 22 to perform translational movement along the guide rail 21.

[0032] Drive boxes 24 are arranged on both sides of the bottom end of the lower mold 9, and a worm 25 is connected to the middle of the drive box 24 through a bearing. A threaded barrel 26 is connected to the inner wall of the bottom side of the drive box 24 through a bearing. A worm wheel 27 is keyed to the bottom outer wall of the threaded barrel 26. The worm wheel 27 is meshed with the worm 25. One end of the worm 25 near the edge of the lower mold 9 passes through the drive box 24 and is connected to a gear 28. The gear 28 is meshed with the rack 22. The rack 22 moves to drive the gear 28 to rotate. The rotation of the gear 28 drives the worm 25 to rotate synchronously. The rotation of the worm 25 drives the worm wheel 27 to rotate, thereby driving the threaded barrel 26 to rotate. The rotation of the threaded barrel 26 drives the threaded push rod 29 to move up and down.

[0033] The lower mold 9 is internally arranged with an active cavity 91. The top of the threaded barrel 26 extends into the active cavity 91 through the drive box 24. The top inner wall of the threaded barrel 26 is threadedly connected with a threaded ejector rod 29. The end of the threaded ejector rod 29 away from the threaded barrel 26 passes through the lower mold core 12 and is connected to a ejector block 30. The top of the ejector block 30 is on the same plane as the lower mold core 12. Limiting grooves 31 are arranged on both sides of the active cavity 91. Limiting rods 32 are connected to both sides of the bottom end of the ejector block 30. The limiting rods 32 are embedded in the limiting grooves 31. The limiting rods 32 are embedded in the limiting grooves 31 to limit the ejector block 30 and the threaded ejector rod 29. The threaded barrel 26 rotates to drive the threaded ejector rod 29 to move up and down. The lifting and lowering of the threaded ejector rod 29 drives the ejector block 30 to eject or shrink, so as to facilitate the ejection of the stamped sheet metal parts.

[0034] The surface of the die end 6 is arranged with movable grooves 33, the top inner wall of the movable groove 33 is connected to an electric telescopic rod 34, the output end of the electric telescopic rod 34 is connected to a punch 35, the electric telescopic rod 34 drives the punch 35 to move up and down, and the movable groove 33 plays a limiting role. The electric telescopic rod 34 can push the punch 35 to rivet the nuts preset on the surface of the sheet metal.

[0035] A center groove 36 is provided in the middle of the end of the punch 35 away from the electric telescopic rod 34, and a positioning rod 37 is embedded in the center groove 36. A spring 38 is connected to the end of the positioning rod 37 close to the punch 35, and the end of the spring 38 away from the positioning rod 37 abuts against the inner wall of the center groove 36. The positioning rod 37 plays a positioning role. When riveting the preset nut of the sheet metal part, the positioning rod 37 can pass through the center of the nut to perform a limited positioning role, so as to facilitate precise riveting by the punch 35.

[0036] A trigger switch 39 is provided at the center of the top inner wall of the center groove 36. The trigger switch 39 is set at the center of the spring 38 and is in the same straight line as the positioning rod 37. When the preset nut installation of the sheet metal part is offset, the positioning rod 37 abuts against the edge of the nut during the descent process. As the die end 6 descends, the positioning rod 37 shrinks into the center groove 36. When the top of the positioning rod 37 abuts against the trigger switch 39, the trigger switch 39 is activated.

[0037] A warning light 40 is provided on one side of the top of the top plate 3, and a controller 41 is provided on one side of the warning light 40. The controller 41 is connected to the warning light 40 and the trigger switch 39 through electric wires. A cooling pipe 42 is provided through the middle of the lower mold 9. When the top of the positioning rod 37 abuts against the trigger switch 39, the trigger switch 39 is activated to transmit the signal to the controller 41. The controller 41 controls the warning light 40 to light up to remind the staff to make corrections to avoid riveting deviation and thus affect the stamping quality of the sheet metal parts. The cooling pipe 42 can be externally connected to a water cooling pipe for auxiliary cooling.

[0038] The implementation principle of the embodiment of the present application is as follows: first, place the sheet metal part to be stamped on the surface of the lower die 9 and at the center of the lower die core 12, then manually place the nuts at the preset hole positions of the sheet metal part in turn, start the telescopic cylinder 4, and the upper die 5 can be pushed to move up and down by the telescopic cylinder 4, thereby pushing the die end 6 to fit with the lower die core 12 of the lower die 9, thereby realizing the stamping work of the sheet metal part. At the same time, when riveting the preset nut of the sheet metal part, the positioning rod 37 can be passed through the center of the nut to perform a limiting positioning function, so as to facilitate precise riveting by the punch 35. While stamping the sheet metal part, the punch 35 is pushed by the electric telescopic rod 34 to The nuts preset on the surface of the sheet metal are riveted. When the preset nuts of the sheet metal are installed offset, the positioning rod 37 abuts against the edge of the nut during the descent process. As the die end 6 descends, the positioning rod 37 shrinks into the central groove 36. When the top of the positioning rod 37 abuts against the trigger switch 39, the trigger switch 39 is activated to transmit a signal to the controller 41. The controller 41 controls the warning light 40 to light up to remind the staff to make corrections to avoid riveting deviation and thus affect the stamping quality of the sheet metal. During the stamping process, the guide column 11 is embedded in the positioning cylinder 7 to play a positioning function to avoid the position mismatch between the upper die 5 and the lower die 9 during the stamping process, thereby affecting the stamping effect; After the sheet metal is stamped, the upper mold 5 is lifted by the telescopic cylinder 4, and the servo motor 16 is started. The servo motor 16 drives the screw rod 14 to rotate, and the rotation of the screw rod 14 drives the moving block 15 to perform translational movement. The moving block 15 plays a connecting and moving role and can drive the moving rod 17 to move synchronously. The moving rod 17 can follow the moving block 15 to move synchronously. The movement of the moving rod 17 drives the adjusting frame 18 to perform synchronous translational movement. During the movement of the adjusting frame 18, the movable column 20 is pushed to move upward. The rising of the movable column 20 drives the lower mold 9 to tilt to a certain degree, so as to facilitate the removal of the stamped sheet metal to the outside of the lower mold 9. When the adjusting frame 18 moves, it can drive the telescopic connecting rod 23 to perform synchronous translational movement. The movement of the telescopic connecting rod 23 drives the rack 22 to perform translational movement along the guide rail 21. At the same time, a rotary joint is connected between the telescopic connecting rod 23 and the rack 22. The interactive connection and the telescopic connecting rod 23 have the telescopic characteristics, so that the movement of the telescopic connecting rod 23 during the tilting process of the lower mold 9 can still push the rack 22 to translate along the guide rail 21, and the movement of the rack 22 drives the gear 28 to rotate, and the rotation of the gear 28 drives the worm 25 to rotate synchronously, and the rotation of the worm 25 drives the worm wheel 27 to rotate, thereby driving the threaded barrel 26 to rotate, and the rotation of the threaded barrel 26 drives the threaded ejector rod 29 to perform a lifting movement, and the threaded ejector rod 29 is lifted and lowered by the rotation of the threaded barrel 26. The lifting and lowering of the threaded ejector rod 29 drives the ejector block 30 to eject or retract, so as to facilitate the ejection of the stamped sheet metal parts. After ejection, the lower mold 9 is in a tilted state at the same time, so that the sheet metal parts formed by gravity automatically slide out of the outside of the lower mold 9 to the surface of the workbench 1, thereby avoiding burns or discomfort caused by high-temperature sheet metal parts when they are manually picked up.

[0039] The embodiments of this specific implementation are all preferred embodiments of the present application, and are not intended to limit the protection scope of the present application. The same components are represented by the same figure marks. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A sheet metal stamping die, comprising a workbench (1), characterized in that: The top edge of the workbench (1) is connected to a fixing frame (2), the top of the fixing frame (2) is welded to a top plate (3), the middle of the top plate (3) is connected to a telescopic cylinder (4), the output end of the telescopic cylinder (4) is connected to an upper mold (5), the center of the bottom end of the upper mold (5) is connected to a die end (6), positioning cylinders (7) are provided at both side edges of the upper mold (5), a support rod (8) is connected to one side of the upper surface of the workbench (1), and the The top of the support rod (8) is movably connected to the lower mold (9) via a rotating joint. A support seat (10) is provided on one side of the support rod (8). The upper surface of the support seat (10) abuts against the outer wall of the bottom end of the lower mold (9). Both sides of the top of the lower mold (9) are connected to guide columns (11). The guide columns (11) match the positioning cylinder (7). A lower mold core (12) is provided at the top center of the lower mold (9). The lower mold core (12) matches the die end (6).

2. A sheet metal stamping die according to claim 1, characterized in that: The workbench (1) is provided with strip grooves (13) at both side edges, and the strip grooves (13) are provided on both sides of the support seat (10); the inner wall of the middle part of the strip groove (13) is connected to a screw rod (14) through a bearing; the outer wall of one side of the screw rod (14) is threadedly connected to a moving block (15), and the moving block (15) is embedded in the strip groove (13); servo motors (16) are provided at both ends of one side of the workbench (1); the output ends of two groups of the servo motors (16) are connected to the screw rods (14) at corresponding positions; the servo motors (16) drive the screw rods (14) to rotate, and the rotation of the screw rods (14) drives the moving block (15) to perform translational movement.

3. A sheet metal stamping die according to claim 2, characterized in that: The top of the moving block (15) is connected to a moving rod (17), one side of the top of the moving rod (17) is connected to an adjustment frame (18), an inclined groove (19) is provided at the center of the adjustment frame (18), and both side outer walls of the lower mold (9) are connected to movable columns (20) through bearings, and the movable columns (20) are embedded in the inclined groove (19).

4. A sheet metal stamping die according to claim 3, characterized in that: Guide rails (21) are provided at the bottom of the outer walls on both sides of the lower mold (9), a rack (22) is movably embedded in one side of the guide rail (21), a telescopic connecting rod (23) is connected to the bottom end of one side of the adjustment frame (18), and the bottom end of the telescopic connecting rod (23) is movably connected to the rack (22) via a rotating joint.

5. The sheet metal stamping die according to claim 4, characterized in that: Both sides of the bottom end of the lower mold (9) are connected to drive boxes (24), the middle of the drive box (24) is connected to a worm (25) via a bearing, the inner wall of one side of the bottom of the drive box (24) is connected to a threaded barrel (26) via a bearing, the bottom outer wall of the threaded barrel (26) is keyed to a worm gear (27), the worm gear (27) is meshed with the worm (25), one end of the worm (25) near the edge of the lower mold (9) passes through the drive box (24) and is connected to a gear (28), the gear (28) is meshed with the rack (22).

6. A sheet metal stamping die according to claim 5, characterized in that: An active cavity (91) is arranged inside the lower mold (9); the top end of the threaded barrel (26) passes through the drive box (24) and extends into the active cavity (91); the inner wall of the top of the threaded barrel (26) is threadedly connected to a threaded push rod (29); one end of the threaded push rod (29) away from the threaded barrel (26) passes through the lower mold core (12) and is connected to a push block (30); the top of the push block (30) and the lower mold core (12) are located on the same plane; limiting grooves (31) are arranged on both sides of the active cavity (91); limiting rods (32) are connected to both sides of the bottom end of the push block (30); and the limiting rods (32) are embedded in the limiting grooves (31).

7. The sheet metal stamping die according to claim 1, characterized in that: The surface of the die end (6) is provided with movable grooves (33), the top inner wall of the movable groove (33) is connected to an electric telescopic rod (34), the output end of the electric telescopic rod (34) is connected to a punch (35), and the electric telescopic rod (34) drives the punch (35) to move up and down.

8. The sheet metal stamping die according to claim 7, characterized in that: A central groove (36) is provided in the middle of one end of the punch (35) away from the electric telescopic rod (34), a positioning rod (37) is embedded in the interior of the central groove (36), one end of the positioning rod (37) close to the punch (35) is connected to a spring (38), and one end of the spring (38) away from the positioning rod (37) abuts against the inner wall of the central groove (36).

9. The sheet metal stamping die according to claim 8, characterized in that: A trigger switch (39) is provided at the center of the top inner wall of the central groove (36). The trigger switch (39) is provided at the center of the spring (38) and is in the same straight line as the positioning rod (37).

10. The sheet metal stamping die according to claim 9, characterized in that: A warning light (40) is provided on one side of the top of the top plate (3), a controller (41) is provided on one side of the warning light (40), the controller (41) and the warning light (40) and the trigger switch (39) are all connected via electric wires, and a cooling pipe (42) is provided through the middle of the lower mold (9).

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