Stamping and bending die for workpiece machining

Abstract

The utility model discloses a stamping and bending die for workpiece machining, and relates to the technical field of stamping and bending dies. A workpiece is placed in a fifth arc-shaped groove of a push block, a stamping block is driven by a stamping machine to move downwards, the stamping block firstly makes contact with the push block, the workpiece is pre-fixed and pushed downwards, and meanwhile the workpiece drives an arc-shaped groove rotating wheel to rotate; the arc-shaped groove rotating wheel smoothly bends a workpiece through the second arc-shaped groove in the dovetail inserting block, it is ensured that the two ends of the workpiece are tightly attached to the fourth arc-shaped groove of the T-shaped block, the design of the arc-shaped groove rotating wheel is adopted, friction resistance in the workpiece bending process is remarkably reduced, the diameter of the bent portion of the workpiece can be effectively prevented from being affected, and the workpiece bending quality is improved. In addition, limiting of the dovetail insertion block can be relieved by taking out the first bolt, then the dovetail insertion block is rapidly detached and replaced from the dovetail clamping groove, and maintenance and replacement of quick-wear parts of the die are greatly facilitated.

Description

Technical Field

[0001] This utility model belongs to the field of stamping and bending die technology, and specifically relates to a stamping and bending die for workpiece processing. Background Technology

[0002] Bending round rods is a common process. For workpieces with special shapes, such as round rods with a diameter in the middle section that is larger than the diameters at both ends, there is a significant technical challenge in bending them.

[0003] Traditional bending dies typically use a fixed die to guide the deformation of the workpiece. When the workpiece is forcibly bent in the cavity, the material outside the bending point tends to thin out and the diameter decreases due to tension. This cross-sectional distortion directly leads to the loss of control over the diameter of the workpiece at the bending point, seriously affecting its assembly performance and structural strength. At the same time, the parts of traditional bending dies that experience severe friction with the workpiece are vulnerable and difficult to replace and maintain. To solve the above problems, we provide a stamping bending die for workpiece processing. Utility Model Content

[0004] The purpose of this utility model is to provide a stamping and bending die for workpiece processing, so as to solve the problem mentioned in the background art that traditional bending dies usually use a fixed die to guide the deformation of the workpiece. When the workpiece is forcibly bent in the cavity, the material outside the bending point tends to thin out and the diameter decreases due to tension. This cross-sectional distortion will directly lead to the loss of control of the diameter of the workpiece at the bending point, which seriously affects its assembly performance and structural strength. At the same time, the parts of traditional bending dies that are in severe friction with the workpiece are vulnerable parts, which are not convenient to replace and maintain.

[0005] The above-mentioned technical objective of this utility model is achieved through the following technical solution: a stamping and bending die for workpiece processing, comprising a lower die plate, a pressure plate provided at the top of the lower die plate, an upper die plate bolted to the bottom of the pressure plate, a stamping block fixedly connected inside the upper die plate, two support blocks bolted inside the lower die plate, an arc-groove wheel rotatably connected inside the support blocks, an L-shaped arc groove formed on the inner side of the support blocks, and first arc grooves formed on both sides and the bottom of the stamping blocks. Both sides of the stamping block have dovetail slots, and dovetail inserts are inserted into the dovetail slots. The surface of the dovetail insert has a second arc-shaped groove. Both sides of the stamping block are threaded with first bolts. The top of the dovetail insert has a third arc-shaped groove that matches the first bolt. Both sides of the stamping block have T-shaped slots, and T-shaped blocks are inserted into the T-shaped slots. One side of the T-shaped block has a fourth arc-shaped groove, and a second bolt is fitted inside the T-shaped block. One end of the second bolt is threaded to the stamping block.

[0006] Preferably, a pad is bolted to the bottom of the lower template, a support base is bolted to the bottom of the pad, a push block is slidably sleeved inside the pad, a fifth arc-shaped groove is opened on the top of the push block, an end plate is fixedly connected to the bottom of the push block, a slide rod is slidably sleeved inside the push block and the end plate, the bottom of the slide rod is fixedly connected to the support base, a round hole adapted to the slide rod is opened inside the end plate and the push block, and a spring is sleeved on the surface of the slide rod.

[0007] Preferably, the push block has grooves on both sides, and the pad has a slider that matches the grooves fixedly connected inside, with the surface of the slider slidably connected to the grooves.

[0008] Preferably, the upper template has two guide rods fixedly sleeved inside, and the top of the lower template has guide sleeves that are adapted to the guide rods fixedly connected on both sides, with the surface of the guide rods slidingly sleeved with the guide sleeves.

[0009] Preferably, limit blocks are inserted into both sides of the top of the lower template, and a slot adapted to the third arc-shaped groove is provided on the top of the lower template.

[0010] This utility model has the following beneficial effects:

[0011] This device places the workpiece in the fifth arc-shaped groove of the push block, and uses a stamping machine to drive the stamping block downwards. The workpiece first contacts the push block, pre-fixing and pushing it downwards. Simultaneously, the workpiece drives the arc-shaped groove wheel to rotate, allowing it to smoothly bend the workpiece through the second arc-shaped groove on the dovetail insert. This ensures that both ends of the workpiece are tightly fitted with the fourth arc-shaped groove of the T-block. The arc-shaped groove wheel design significantly reduces frictional resistance during bending and effectively maintains the diameter of the bent portion, improving machining accuracy and surface quality. Furthermore, removing the first bolt releases the dovetail insert's limiting position, allowing for quick removal and replacement from the dovetail slot. This greatly facilitates the maintenance and replacement of easily damaged mold parts, shortens downtime, and improves production efficiency, mold usability, and economy. Attached Figure Description

[0012] Figure 1 This is a three-dimensional structural schematic diagram of the present invention;

[0013] Figure 2 This is an exploded view of a partial structure of this utility model;

[0014] Figure 3 This is an exploded view of a partial structure of this utility model;

[0015] Figure 4 This is an exploded view of a partial structure of this utility model;

[0016] Figure 5 This is an exploded view of a partial structure of this utility model.

[0017] Reference numerals: 1. Lower template; 2. Support block; 3. Arc-shaped groove wheel; 4. L-shaped arc groove; 5. Pressure plate; 6. Upper template; 7. Stamping block; 8. First arc groove; 9. Dovetail slot; 10. Dovetail insert; 11. Second arc groove; 12. First bolt; 13. Third arc groove; 14. T-shaped groove; 15. T-shaped block; 16. Fourth arc groove; 17. Second bolt; 18. Pad plate; 19. Push block; 20. Fifth arc groove; 21. End plate; 22. Slide rod; 23. Round hole; 24. Spring; 25. Support seat; 26. Slide groove; 27. Slider; 28. Guide rod; 29. ​​Guide sleeve; 30. Limiting block. Detailed Implementation

[0018] The present invention will be further described in detail below with reference to the accompanying drawings.

[0019] Example 1:

[0020] refer to Figures 1-5 A stamping and bending die for workpiece processing includes a lower die plate 1, a pressure plate 5 at the top of the lower die plate 1, an upper die plate 6 bolted to the bottom of the pressure plate 5, a stamping block 7 fixedly connected inside the upper die plate 6, two support blocks 2 bolted inside the lower die plate 1, an arc-groove wheel 3 rotatably connected inside the support blocks 2, an L-shaped arc groove 4 formed on the inner side of the support blocks 2, first arc grooves 8 formed on both sides and bottom of the stamping block 7, dovetail slots 9 formed on both sides of the bottom of the stamping block 7, dovetail inserts 10 inserted into the dovetail slots 9, and second arc grooves 11 formed on the surface of the dovetail inserts 10. The threaded connection includes a first bolt 12. The top of the dovetail insert 10 has a third arc-shaped groove 13 that matches the first bolt 12. Both sides of the stamping block 7 have T-shaped grooves 14. A T-shaped block 15 is inserted into the T-shaped groove 14. A fourth arc-shaped groove 16 is opened on one side of the T-shaped block 15. A second bolt 17 is fitted inside the T-shaped block 15. One end of the second bolt 17 is threadedly connected to the stamping block 7. The arc-shaped groove diameters of the arc-shaped groove wheel 3, L-shaped arc-shaped groove 4, first arc-shaped groove 8, second arc-shaped groove 11, and fifth arc-shaped groove 20 are all matched with the middle of the workpiece. The arc-shaped groove diameter of the fourth arc-shaped groove 16 is matched with both ends of the workpiece.

[0021] Specifically, the device places the workpiece in the fifth arc groove 20 of the push block 19, and uses a stamping machine to drive the stamping block 7 downward. The workpiece first contacts the push block 19 and is pre-fixed and pushed downward. At the same time, the workpiece drives the arc groove wheel 3 to rotate, so that the arc groove wheel 3 smoothly bends the workpiece through the second arc groove 11 on the dovetail insert 10. This ensures that both ends of the workpiece are tightly fitted with the fourth arc groove 16 of the T-block 15. The design of the arc groove wheel 3 not only significantly reduces the frictional resistance during the bending process of the workpiece, but also effectively keeps the diameter of the bent part of the workpiece unaffected, improving the processing accuracy and surface quality. In addition, the dovetail insert 10 can be released by removing the first bolt 12, and then the dovetail insert 10 can be quickly disassembled and replaced from the dovetail slot 9. This greatly facilitates the maintenance and replacement of the mold's vulnerable parts, shortens downtime, and improves production efficiency, mold usability, and economy.

[0022] refer to Figure 5 A pad 18 is bolted to the bottom of the lower template 1, and a support base 25 is bolted to the bottom of the pad 18. A push block 19 is slidably sleeved inside the pad 18. A fifth arc groove 20 is opened on the top of the push block 19. An end plate 21 is fixedly connected to the bottom of the push block 19. A slide rod 22 is slidably sleeved inside the push block 19 and the end plate 21. The bottom of the slide rod 22 is fixedly connected to the support base 25. A round hole 23 that matches the slide rod 22 is opened inside the end plate 21 and the push block 19. A spring 24 is sleeved on the surface of the slide rod 22. The stamping block 7 contacts the push block 19 first and pre-fixes the workpiece and moves downward. The push block 19 and the end plate 21 slide on the surface of the slide rod 22 and compress the spring 24. After stamping, the spring 24 resets and pushes the push block 19 to push out the workpiece, which facilitates demolding of the workpiece.

[0023] refer to Figure 5 Both sides of the push block 19 are provided with sliding grooves 26. The pad plate 18 is fixedly connected with a slider 27 that matches the sliding groove 26. The surface of the slider 27 is slidably connected to the sliding groove 26. The push block 19 slides on the surface of the slider 27 through the sliding groove 26. With the cooperation of the end plate 21, the stroke of the push block 19 moving up and down can be limited.

[0024] refer to Figure 2 and Figure 3 The upper template 6 has two guide rods 28 fixedly connected inside. The two sides of the top of the lower template 1 are fixedly connected with guide sleeves 29 that are compatible with the guide rods 28. The surface of the guide rods 28 slides in contact with the guide sleeves 29. The upper template 6 drives the guide rods 28 to slide inside the guide sleeves 29, which enables the stamping block 7 and the arc groove wheel 3 to accurately stamp and bend the workpiece.

[0025] refer to Figure 2Limiting blocks 30 are inserted into both sides of the top of the lower template 1. The top of the lower template 1 is provided with a slot that matches the third arc groove 13. By setting the limiting blocks 30, the two ends of the workpiece can be effectively limited, and the workpiece bending will result in inconsistent lengths at both ends.

[0026] Brief description of the usage process: The user can place the workpiece in the fifth arc groove 20 of the push block 19. When the stamping machine drives the stamping block 7 to move downward, the stamping block 7 contacts the push block 19 first and pre-fixes the workpiece to move downward. At the same time, the workpiece drives the arc groove wheel 3 to rotate, so that the arc groove wheel 3 bends the workpiece through the second arc groove 11 of the dovetail insert 10, so that the two ends of the workpiece fit with the fourth arc groove 16 of the T-shaped block 15. By setting the arc groove wheel 3, the friction at the bending point of the workpiece is reduced, and the diameter at the bending point of the workpiece is not affected. By removing the first bolt 12, the limit on the dovetail insert 10 can be released, and the dovetail insert 10 can be removed from the inside of the dovetail slot 9 for replacement, which facilitates the quick replacement of the vulnerable parts of the device.

[0027] This specific embodiment is merely an explanation of the present utility model and is not intended to limit the present utility model. After reading this specification, those skilled in the art can make modifications to this embodiment without contributing any inventive step, but as long as they are within the scope of the claims of the present utility model, they are protected by patent law.

Claims

1. A stamping and bending die for workpiece processing, comprising a lower template (1), a pressure plate (5) provided on the top of the lower template (1), an upper template (6) bolted to the bottom of the pressure plate (5), and a stamping block (7) fixedly connected inside the upper template (6), characterized in that: The inside of the lower mold plate (1) is bolted with two support blocks (2), the inside of the support block (2) is rotatably connected with an arc-shaped groove rotating wheel (3), the inside of the support block (2) is provided with an L-shaped arc-shaped groove (4), the two sides and the bottom of the stamping block (7) are provided with a first arc-shaped groove (8), the two sides of the bottom of the stamping block (7) are provided with a dovetail clamping groove (9), the inside of the dovetail clamping groove (9) is inserted with a dovetail plug (10), the surface of the dovetail plug (10) is provided with a second arc-shaped groove (11), the two sides of the stamping block (7) are threadedly connected with a first bolt (12), the top of the dovetail plug (10) is provided with a third arc-shaped groove (13) matched with the first bolt (12), the two sides of the stamping block (7) are provided with a T-shaped groove (14), the inside of the T-shaped groove (14) is inserted with a T-shaped block (15), one side of the T-shaped block (15) is provided with a fourth arc-shaped groove (16), the inside of the T-shaped block (15) is sleeved with a second bolt (17), one end of the second bolt (17) is threadedly connected with the stamping block (7).

2. The press-bending die for working a workpiece according to claim 1, characterized in that: The bottom of the lower mold plate (1) is bolted with a backing plate (18), the bottom of the backing plate (18) is bolted with a support seat (25), the inside of the backing plate (18) is slidably sleeved with a push block (19), the top of the push block (19) is provided with a fifth arc-shaped groove (20), the bottom of the push block (19) is fixedly connected with an end plate (21), the inside of the push block (19) and the end plate (21) is slidably sleeved with a slide rod (22), the bottom of the slide rod (22) is fixedly connected with the support seat (25), the inside of the end plate (21) and the push block (19) is provided with a circular hole (23) matched with the slide rod (22), the surface of the slide rod (22) is sleeved with a spring (24).

3. The press-bending die for working a workpiece according to claim 2, characterized in that: The two sides of the push block (19) are provided with a sliding groove (26), the inside of the backing plate (18) is fixedly connected with a sliding block (27) matched with the sliding groove (26), the surface of the sliding block (27) is slidably connected with the sliding groove (26).

4. The press-bending die for working a workpiece according to claim 1, characterized in that: The inside of the upper mold plate (6) is fixedly sleeved with two guide rods (28), the two sides of the top of the lower mold plate (1) are fixedly connected with guide sleeves (29) matched with the guide rods (28), the surface of the guide rod (28) is slidably sleeved with the guide sleeve (29).

5. The press-bending die for working a workpiece according to claim 1, characterized in that: The two sides of the top of the lower mold plate (1) are inserted with limit blocks (30), the top of the lower mold plate (1) is provided with an insertion groove matched with the third arc-shaped groove (13).

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