A positioning structure for cold stamping die for sheet metal parts processing

Abstract

The present invention discloses a positioning structure of a cold stamping die for sheet metal parts processing, which relates to the technical field of cold stamping dies, including a press body, a processing table fixedly installed on one side of the bottom of the press body, a die body arranged on the top of the processing table, a mounting plate fixed on the bottom of the die body, a limit locking mechanism arranged on the bottom of the mounting plate, and a positioning mechanism arranged on one side of the top of the processing table, wherein the limit locking mechanism comprises four movable clamping rods and a threaded rod. The present invention has a simple and reasonable structure, which makes it more convenient and accurate to reposition the die body, and effectively avoids the problem that the existing cold stamping die is prone to offset when it needs to be replaced, and the positioning accuracy is difficult to control, which affects the normal stamping of the stamping die. At the same time, it improves the convenience of positioning and locking of the die body, reduces the trouble of the staff to reposition the die body, and improves the stability of the positioning of the mounting plate, so that the die body is more stable during operation.

Description

Technical Field

[0001] The invention relates to the technical field of cold stamping dies, and in particular to a positioning structure of a cold stamping die for processing sheet metal parts. Background Art

[0002] Cold stamping dies are special tools installed on a press machine to apply deformation force to the sheet metal placed inside at room temperature to deform it, thereby obtaining product parts with certain shapes, sizes and performances. Cold stamping dies are often divided into blanking dies, bending dies, stretching dies and forming dies. At present, cold stamping dies are often positioned and installed on a press machine to process and shape sheet metal parts.

[0003] Most of the existing cold stamping dies are positioned and installed by multiple bolts. However, when processing different types of parts, different stamping dies need to be replaced for processing. Repositioning different stamping dies is prone to offset, and the positioning accuracy is difficult to control, which affects the normal stamping process of the stamping die, thereby causing quality problems in the processing of sheet metal parts and failing to meet daily actual use needs. Summary of the invention

[0004] The purpose of the present invention is to solve the problem in the prior art that different stamping dies are prone to offset when repositioning, the positioning accuracy is difficult to control, and the normal stamping of the stamping dies is affected. A positioning structure for a cold stamping die for sheet metal parts processing is proposed.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions:

[0006] A positioning structure of a cold stamping die for sheet metal parts processing, comprising a press body, a processing table is fixedly installed on one side of the bottom of the press body, a die body is arranged on the top of the processing table, a mounting plate is fixed on the bottom of the die body, a limit locking mechanism is arranged on the bottom of the mounting plate, and a positioning mechanism is arranged on one side of the top of the processing table;

[0007] The top of the movable clamping rod is fixed with a limit plate matching the limit plate slot, and the bottom of the movable clamping rod is fixed with a limit plate matching the limit plate slot. The top of the movable clamping rod is fixed with a limit plate matching the limit plate slot, and the top of the movable clamping rod is fixed with a limit plate matching the limit plate slot. The top of the movable clamping rod is fixed with a limit plate matching the limit plate slot. The top of the movable clamping rod is fixed with a fixed groove. The inner side of the processing table is provided with a limit groove. The bottom four corners of the inner bottom of the fixed groove are provided with limit stop grooves. The bottoms of the four movable clamping rods are fixed with movable stops matching the limit stop grooves. The tops of the four movable stops are provided with sliding push blocks. The threaded rod is located in the middle of the fixed groove and its two ends are respectively rotatably connected to the processing table through bearings. One side of the four sliding push blocks is movably hinged with a movable push rod, and movable blocks are provided at both ends of the threaded rod. A shell fixed to the processing table is provided on the outer side of the threaded rod, and a driving assembly is provided at one end of the bottom of the shell.

[0008] Preferably, the driving assembly includes a motor, which is located at one end of the inner bottom of the fixing groove and fixedly connected to the processing table, a rotating shaft is fixed to the output end of the motor, and a transmission belt is provided at one end of the rotating shaft.

[0009] Preferably, both ends of the transmission belt are respectively connected to the rotating shaft and one end of the threaded rod through pulleys, and the transmission belt passes through one end of the shell and matches the shell.

[0010] Preferably, the positioning mechanism includes a movable card block, a fixed card slot is opened on one side surface of the top of the mounting plate, the movable card block is located inside the fixed card slot and matches the fixed card slot, and a strip slide groove is opened on one side surface of the top of the processing table.

[0011] Preferably, a sliding plate slidably connected to the strip slide groove is fixed on the side of the movable block away from the mounting plate, springs are fixed at both ends of the sliding plate away from the movable block, the springs are located on the inner side of the strip slide groove and fixedly connected to the processing table, a strip block is fixed on the side of the movable block away from the sliding plate, and a strip groove matching the strip block is provided on one side of the fixed groove.

[0012] Preferably, the movable clamping rod passes through the sliding push block and is movably sleeved with the sliding push block, and the top of the movable stop block is slidably connected to a strip frame fixed to the processing table.

[0013] Preferably, a square groove is provided on one side surface of the top of the processing table, a waste box is slidably connected to the inner side of the square groove, a discharge groove is provided on the bottom surface of the mounting plate, a connecting groove is provided on the top surface of the processing table, and the discharge groove is connected to the waste box through the connecting groove.

[0014] Preferably, the movable clamping rod passes through the limiting transverse groove and extends to the inner side of the fixed groove. A sliding ring is movably sleeved in the middle of the movable clamping rod. A limiting transverse frame matching the bottom of the limiting transverse groove is slidably connected to the outer side of the sliding ring. The limiting transverse frame is fixedly connected to the processing table.

[0015] Preferably, both ends of the threaded rod pass through two movable blocks and are threadedly connected to the movable blocks. The two ends of the tops of the two movable blocks are respectively hinged to four movable push rods away from one end of the sliding push block. The movable blocks are located inside the shell and are slidably connected to the shell.

[0016] Compared with the prior art, the present invention provides a positioning structure for a cold stamping die for sheet metal parts processing, which has the following beneficial effects:

[0017] 1. The mounting plate at the bottom of the mold body is positioned and locked by setting a limit locking mechanism. When a different stamping mold needs to be replaced, the mounting plate at the bottom of the mold body is positioned and installed on the processing table through the limit locking mechanism, so that the mold body can be repositioned more accurately, effectively avoiding the existing cold stamping mold when it needs to be replaced. The repositioning is prone to offset, the positioning accuracy is difficult to control, and the normal stamping of the stamping mold is affected. At the same time, the convenience of positioning and locking the mold body is improved, and the trouble of repositioning the mold body by the staff is reduced;

[0018] 2. Position the mounting plate by setting a positioning mechanism, place the mounting plate on the processing table, push the mounting plate, the fixed card slot on one side of the mounting plate matches the movable card block, the strip card slot matches the strip card block, and the movable card block pushes the sliding plate to slide inside the strip slot. The sliding plate squeezes the spring, and the spring produces elastic deformation and is compressed, so that the limit slot on the top of the mounting plate matches the limit transverse slot on the top of the processing table. While accurately positioning the mounting plate, the stability of the mounting plate positioning is improved, so that the mold body is more stable during operation;

[0019] 3. A sliding ring movably connected to the movable clamping rod is provided in the middle part of the movable clamping rod, and the sliding ring slides on the inner side of the limit horizontal frame. When the movable clamping rod moves, the movable clamping rod drives the sliding ring to move on the inner side of the limit horizontal frame, so that the movement stability of the movable clamping rod is stronger, and the movable clamping rod can move downward on the inner side of the sliding ring.

[0020] The present invention has a simple and reasonable structure and is easy to operate, making it more convenient and accurate to reposition the mold body, effectively avoiding the problem that when the existing cold stamping mold needs to be replaced, the repositioning is prone to offset, the positioning accuracy is difficult to control, and the normal stamping of the stamping mold is affected. At the same time, the convenience of positioning and locking the mold body is improved, the trouble of repositioning the mold body by the staff is reduced, and the stability of the positioning of the mounting plate is improved, thereby making the mold body more stable during operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a schematic structural diagram of a positioning structure of a cold stamping die for sheet metal parts processing proposed by the present invention;

[0022] Figure 2 A side cross-sectional view of a positioning structure of a cold stamping die for sheet metal parts processing proposed by the present invention;

[0023] Figure 3 It is a partial front cross-sectional view of a positioning structure of a cold stamping die for sheet metal parts processing proposed by the present invention;

[0024] Figure 4 It is a schematic diagram of the exploded structure of a positioning mechanism of a positioning structure of a cold stamping die for sheet metal parts processing proposed by the present invention;

[0025] Figure 5 It is a schematic diagram of the exploded structure of a limit locking mechanism of a positioning structure of a cold stamping die for sheet metal parts processing proposed by the present invention;

[0026] Figure 6 for Figure 2 A schematic diagram of the enlarged structure of part A;

[0027] Figure 7 for Figure 4 An enlarged schematic diagram of the structure of part B.

[0028] In the figure: 1. press machine body; 2. processing table; 3. mold body; 4. mounting plate; 5. movable clamping rod; 6. threaded rod; 7. limit slide; 8. limit horizontal groove; 9. limit plate; 10. fixed groove; 11. limit stop groove; 12. movable stop block; 13. sliding push block; 14. bar frame; 15. movable push rod; 16. movable block; 17. housing; 18. motor; 19. rotating shaft; 20. transmission belt; 21. limit clamping groove; 22. movable block; 23. fixed clamping groove; 24. bar slide; 25. sliding plate; 26. spring; 27. bar block; 28. square groove; 29. ​​waste box; 30. discharge chute; 31. sliding ring; 32. limit horizontal frame. DETAILED DESCRIPTION

[0029] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0030] In the description of the present invention, it is necessary to understand that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0031] Embodiment 1

[0032] Reference Figure 1-7 A positioning structure of a cold stamping die for sheet metal parts processing includes a press body 1, a processing table 2 is fixedly installed on one side of the bottom of the press body 1, and a die body 3 is arranged on the top of the processing table 2. When processing sheet metal parts, the sheet metal parts are mainly processed and formed by the interaction between the punch and the die in the stamping die body 3. A mounting plate 4 is fixed on the bottom of the die body 3, and a limit locking mechanism is arranged on the bottom of the mounting plate 4. The limit locking mechanism is used to position and lock the mounting plate 4 at the bottom of the die body 3. A square groove 28 is provided on the surface, and a waste box 29 is slidably connected inside the square groove 28. A discharge groove 30 is provided on the bottom surface of the mounting plate 4, and a connecting groove is provided on the top surface of the processing table 2. The discharge groove 30 is connected to the waste box 29 through the connecting groove. The waste generated by the parts stamped by the mold body 3 and the press body 1 is collected in the waste box 29 through the discharge groove 30 and the connecting groove. A positioning mechanism is provided on one side of the top of the processing table 2. The positioning mechanism is used to accurately position the mounting plate 4 and improve the stability of the positioning of the mounting plate 4.

[0033] The limit locking mechanism includes four movable clamping rods 5 and a threaded rod 6. The four corner surfaces of the top of the mounting plate 4 are all provided with limit sliding grooves 7. The four movable clamping rods 5 are respectively located at the four corners of the bottom of the mounting plate 4 and the tops thereof are respectively slidably connected with the four limit sliding grooves 7. A limit clamping groove 21 is provided at one end of the limit sliding groove 7. A limit plate 9 matching the limit clamping groove 21 is fixed on the top of the movable clamping rod 5. The four corner surfaces of the top of one side of the processing table 2 are all provided with limit transverse grooves 8 matching the limit sliding grooves 7. A fixed groove 10 is provided on the inner side of the processing table 2. The four corners of the bottom of the inner side of the fixed groove 10 are all provided with limit stop grooves 11. The movable clamping rod 5 passes through the limit The transverse groove 8 extends to the inner side of the fixed groove 10, and the bottom of the four movable clamping rods 5 are fixed with movable blocks 12 matching the limit stop groove 11. The cross sections of the limit stop groove 11 and the movable block 12 are both set to an "inverted" trapezoid. The inclined surface on one side of the bottom of the movable block 12 is away from the mold body 3, so that when the mounting plate 4 is disassembled, the movable block 12 can be directly pushed to separate from the limit stop groove 11. The top of the four movable blocks 12 is provided with a sliding push block 13, and the movable clamping rod 5 passes through the sliding push block 13 and is movably connected with the sliding push block 13. The top of the movable block 12 is slidably connected with a strip frame 14 fixed to the processing table 2;

[0034] A sliding ring 31 is movably sleeved on the middle part of the movable clamping rod 5, and a limiting transverse frame 32 matching the bottom of the limiting transverse groove 8 is slidably connected to the outer side of the sliding ring 31. The limiting transverse frame 32 is fixedly connected to the processing table 2. The threaded rod 6 is located in the middle part of the fixed groove 10 and its two ends are rotatably connected to the processing table 2 through bearings. A movable push rod 15 is movably hinged on one side of the four sliding push blocks 13. Movable blocks 16 are provided at both ends of the threaded rod 6. The two ends of the threaded rod 6 respectively penetrate the two movable blocks 16 and are threadedly connected to the movable blocks 16. The two ends of the threaded rod 6 are integrally formed with screw teeth in opposite directions. When the threaded rod 6 rotates, the movement directions of the two movable blocks 16 are opposite. The two ends of the top of the two movable blocks 16 are respectively movably hinged to one end of the four movable push rods 15 away from the sliding push block 13. A shell 17 fixed to the processing table 2 is provided on the outer side of the threaded rod 6. The movable block 16 is located on the inner side of the shell 17 and is slidably connected to the shell 17. A driving assembly is provided at one end of the bottom of the shell 17.

[0035] In this embodiment, the mold body 3 and the mounting plate 4 are placed on the processing table 2, the limiting slide groove 7 on the top of the mounting plate 4 corresponds to the limiting transverse groove 8 on the top of the processing table 2, the driving assembly is started, and the threaded rod 6 rotates. Since the two ends of the threaded rod 6 respectively pass through the two movable blocks 16 and are threadedly connected with the movable blocks 16, the threaded rod 6 rotates and drives the two movable blocks 16 to move toward the middle direction respectively. The movable blocks 16 slide inside the shell 17, and the movable blocks 16 drive the movable push rods 15 at both ends of the top thereof to move, and one end of the movable push rod 15 moves. Movement, since the two ends of the movable push rod 15 are respectively hinged with the sliding push block 13 and one end of the movable block 16, the other end of the movable push rod 15 pulls the sliding push block 13 to make a linear movement, and the sliding push block 13 drives the movable clamping rod 5 at its top to move toward the mounting plate 4, and the movable clamping rod 5 slides inside the limiting transverse groove 8, and the movable clamping rod 5 drives the limiting plate 9 at its top to move toward the mounting plate 4, and the top of the movable clamping rod 5 moves to the inside of the limiting slide groove 7 at the top of the mounting plate 4, and the movable clamping rod 5 drives the sliding ring 31 to slide inside the limiting transverse frame 32;

[0036] At the same time, the movable card rod 5 drives the movable stopper 12 at its bottom end to slide inside the strip frame 14, and the movable stopper 12 moves to the inside of the limit stop groove 11, so that the movable stopper 12 moves downward for a distance, and the movable stopper 12 drives the movable card rod 5 to move downward for a distance, and the movable card rod 5 slides downward on the inner side of the sliding ring 31 and the sliding push block 13, and the movable card rod 5 drives the limit plate 9 to move downward, and the limit plate 9 moves to the inside of the limit slot 21 at the top of the mounting plate 4, so that the operation of positioning the mounting plate 4 is convenient and quick, and the positioning accuracy is high.

[0037] Embodiment 2

[0038] like Figure 1-3As shown in Figure 5, this embodiment is basically the same as the first embodiment, and is more optimized in that the driving assembly includes a motor 18, which is located at one end of the bottom inner side of the fixing groove 10 and is fixedly connected to the processing table 2. A rotating shaft 19 is fixed to the output end of the motor 18, and a transmission belt 20 is provided at one end of the rotating shaft 19. Both ends of the transmission belt 20 are respectively connected to the rotating shaft 19 and one end of the threaded rod 6 through pulleys, and the transmission belt 20 passes through one end of the shell 17 and matches the shell 17.

[0039] In this embodiment, the motor 18 is started and starts to run. The output end of the motor 18 drives the rotating shaft 19 to rotate. The rotating shaft 19 drives the transmission belt 20 at one end thereof to run through the pulley. Since the two ends of the transmission belt 20 are respectively connected to the rotating shaft 19 and one end of the threaded rod 6 through the pulley, the transmission belt 20 drives the threaded rod 6 at the top thereof to rotate through the pulley. The transmission through the transmission belt 20 is more stable and has the effect of buffering and absorbing vibration.

[0040] Embodiment 3

[0041] like Figure 2 and Figure 6-7 As shown, this embodiment is basically the same as the first embodiment, and is more optimized in that the positioning mechanism includes a movable block 22, a fixed slot 23 is provided on the top side surface of the mounting plate 4, the movable block 22 is located on the inner side of the fixed slot 23 and matches the fixed slot 23, a sliding plate 25 slidably connected to the strip slot 24 is fixed to the movable block 22 on the side away from the mounting plate 4, a strip slot 24 is provided on the top side surface of the processing table 2, springs 26 are fixed at both ends of the sliding plate 25 on the side away from the movable block 22, the springs 26 are located on the inner side of the strip slot 24 and fixedly connected to the processing table 2, a strip block 27 is fixed to the side of the movable block 22 away from the sliding plate 25, and a strip slot matching the strip block 27 is provided on one side of the fixed slot 23.

[0042] In this embodiment, when the mold body 3 is replaced, the mold body 3 and the mounting plate 4 are placed on the processing table 2, and the mounting plate 4 is pushed. The fixed slot 23 on one side of the mounting plate 4 matches the movable block 22, and the strip slot matches the strip block 27. At the same time, the mounting plate 4 pushes the movable block 22 to move, and the movable block 22 pushes the sliding plate 25 to slide inside the strip slot 24. The sliding plate 25 squeezes the spring 26, and the spring 26 produces elastic deformation and is compressed, so that the limiting slot 7 on the top of the mounting plate 4 matches the limiting transverse slot 8 on the top of the processing table 2.

[0043] The above are only preferred specific implementation modes of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical solutions and inventive concepts of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A positioning structure for a cold stamping die for sheet metal parts processing, comprising a press body (1), characterized in that: A processing table (2) is fixedly mounted on one side of the bottom of the press body (1); a mold body (3) is provided on the top of the processing table (2); a mounting plate (4) is fixed on the bottom of the mold body (3); a limit locking mechanism is provided at the bottom of the mounting plate (4); and a positioning mechanism is provided on one side of the top of the processing table (2); The limit locking mechanism comprises four movable clamping rods (5) and a threaded rod (6); the four corner surfaces of the top of the mounting plate (4) are all provided with limit sliding grooves (7); the four corner surfaces of the top of one side of the processing table (2) are all provided with limit transverse grooves (8) matching the limit sliding grooves (7); the four movable clamping rods (5) are respectively located at the four corners of the bottom of the mounting plate (4) and the tops thereof are respectively slidably connected to the four limit sliding grooves (7); a limit clamping groove (21) is provided at one end of the limit sliding groove (7); a limit plate (9) matching the limit clamping groove (21) is fixed on the top of the movable clamping rod (5); a fixing groove (10) is provided on the inner side of the processing table (2); the fixing groove (1 0) The four corners of the inner bottom are provided with limit stop grooves (11), the bottoms of the four movable clamping rods (5) are fixed with movable blocks (12) matching the limit stop grooves (11), the tops of the four movable blocks (12) are provided with sliding push blocks (13), the threaded rod (6) is located in the middle of the fixed groove (10) and its two ends are respectively rotatably connected to the processing table (2) through bearings, one side of the four sliding push blocks (13) is movably hinged with a movable push rod (15), both ends of the threaded rod (6) are provided with movable blocks (16), the outer side of the threaded rod (6) is provided with a shell (17) fixed to the processing table (2), and a driving component is provided at one end of the bottom of the shell (17); The movable clamping rod (5) passes through the sliding push block (13) and is movably sleeved with the sliding push block (13); the top of the movable stop block (12) is slidably connected to a strip frame (14) fixed to the processing table (2); the two ends of the threaded rod (6) respectively pass through two movable blocks (16) and are threadedly connected to the movable blocks (16); the two ends of the top of the two movable blocks (16) are respectively movably hinged to one end of the four movable push rods (15) away from the sliding push block (13); the movable block (16) is located inside the shell (17) and is slidably connected to the shell (17).

2. The positioning structure of a cold stamping die for sheet metal parts processing according to claim 1, characterized in that: The driving assembly comprises a motor (18), the motor (18) being located at one end of the inner bottom of the fixing groove (10) and fixedly connected to the processing table (2), a rotating shaft (19) being fixed at the output end of the motor (18), and a transmission belt (20) being provided at one end of the rotating shaft (19).

3. The positioning structure of a cold stamping die for sheet metal parts processing according to claim 2, characterized in that: The two ends of the transmission belt (20) are respectively connected to the rotating shaft (19) and one end of the threaded rod (6) through pulleys, and the transmission belt (20) passes through one end of the housing (17) and matches the housing (17).

4. The positioning structure of a cold stamping die for sheet metal parts processing according to claim 1, characterized in that: The positioning mechanism comprises a movable clamping block (22), a fixed clamping groove (23) is provided on a top side surface of the mounting plate (4), the movable clamping block (22) is located inside the fixed clamping groove (23) and matches the fixed clamping groove (23), and a strip-shaped sliding groove (24) is provided on a top side surface of the processing table (2).

5. The positioning structure of a cold stamping die for sheet metal parts processing according to claim 4, characterized in that: A sliding plate (25) slidably connected to the strip slide groove (24) is fixed to the side of the movable clamping block (22) away from the mounting plate (4); springs (26) are fixed to both ends of the side of the sliding plate (25) away from the movable clamping block (22); the springs (26) are located inside the strip slide groove (24) and are fixedly connected to the processing table (2); a strip clamping block (27) is fixed to the side of the movable clamping block (22) away from the sliding plate (25); and a strip clamping groove matching the strip clamping block (27) is provided on one side of the fixed clamping groove (23).

6. The positioning structure of a cold stamping die for sheet metal parts processing according to claim 1, characterized in that: A square groove (28) is provided on one side surface of the top of the processing table (2), a waste box (29) is slidably connected to the inner side of the square groove (28), a discharge groove (30) is provided on the bottom surface of the mounting plate (4), a connecting groove is provided on the top surface of the processing table (2), and the discharge groove (30) is connected to the waste box (29) through the connecting groove.

7. The positioning structure of a cold stamping die for sheet metal parts processing according to claim 1, characterized in that: The movable clamping rod (5) passes through the limiting transverse groove (8) and extends to the inner side of the fixed groove (10); a sliding ring (31) is movably sleeved on the middle part of the movable clamping rod (5); a limiting transverse frame (32) matching the bottom of the limiting transverse groove (8) is slidably connected to the outer side of the sliding ring (31); and the limiting transverse frame (32) is fixedly connected to the processing table (2).

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