Automatic pulling and rotating type clamping mechanism for automobile stamping die

Abstract

The utility model relates to the technical field of automobile production, and discloses an automatic pulling and rotating type clamping mechanism for an automobile stamping die, which comprises a workbench, the top of the workbench is provided with a mounting hole and penetrates through the workbench, and the bottom of the workbench is fixedly provided with an L-shaped plate. A first sleeve is fixedly mounted in the L-shaped plate and extends to the top of the workbench through the mounting hole, and a first threaded rod is movably mounted in the first sleeve. According to the utility model, the rapid clamping of a plate is realized, so that the manual operation time is reduced, the working efficiency of the stamping die is improved, and meanwhile, the pressing plate can accurately and stably move to the molded surface of the blank holder to tightly clamp a material sheet, so that the material sheet is prevented from deviating or moving in the stamping process, and the stamping quality is improved. Therefore, the quality of the stamping part is guaranteed, the operation of workers in a dangerous environment is reduced, the risk of industrial accidents is reduced, and the safety in the production process is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile production, and more specifically to an automatic pulling and rotating clamping mechanism for an automobile stamping die. Background Art

[0002] Automobile stamping dies are tools used in the automobile manufacturing process to apply pressure to metal sheets through the relative movement of the upper and lower dies, causing them to undergo plastic deformation and eventually forming the required parts. In the current automobile stamping die industry, automatic pull-and-turn clamping mechanisms are widely used to improve production efficiency and ensure the stability of die clamping. However, this mechanism also has some significant disadvantages when used, which are mainly due to its widely used cylinder push method. First of all, the purchase cost of cylinders and their supporting equipment is an issue that cannot be ignored. Since cylinders need to be equipped with high-precision control systems and complex pneumatic pipeline systems, the purchase cost of these equipment is usually high. Especially for large-scale automobile stamping die production lines, this cost accumulation effect will be more significant, greatly increasing the overall cost of the die. Secondly, the installation of cylinders and their supporting equipment is also a complex and costly process. Not only does it require professional technicians to carry out precise installation and debugging, but it is also necessary to consider issues such as equipment layout, pipeline connection, and compatibility with other equipment. These will increase the manufacturing cost and production cycle of the die. In addition to cost issues, cylinders also have certain limitations in precision control. Although the cylinder can achieve fast movements, its precision control may not be as accurate as manual operation when fine-tuning is required. This is because the movement of the cylinder is achieved through air pressure control, and the change of air pressure is easily affected by factors such as ambient temperature and humidity, which can lead to unstable movement. In addition, the stroke and movement speed of the cylinder are also fixed and cannot be flexibly adjusted according to actual needs. Utility Model Content

[0003] In order to overcome the deficiencies of the prior art, the utility model provides an automatic pull-and-rotate clamping mechanism for an automobile stamping die, which has the advantage of good clamping effect.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an automatic pull-and-rotate clamping mechanism for an automobile stamping die, comprising a workbench, a mounting hole is provided on the top of the workbench and passes through the workbench, an L-shaped plate is fixedly installed on the bottom of the workbench, a sleeve 1 is fixedly installed inside the L-shaped plate and the sleeve 1 extends to the top of the workbench through the mounting hole, a threaded rod 1 is movably installed inside the sleeve 1, a handle 1 is fixedly installed on the bottom of the threaded rod 1, a U-shaped plate is fixedly installed on the top of the threaded rod 1, a hinged plate is hinged inside the U-shaped plate, a frame is fixedly installed on one end of the hinged plate, a sleeve 2 is fixedly installed inside the top end of the frame, a threaded rod 2 is movably installed inside the sleeve 2, a handle 2 is fixedly installed on one end of the threaded rod 2, and a pressure plate is fixedly installed on the other end of the threaded rod 2.

[0005] As a preferred technical solution of the utility model, a lower stamping die is fixedly installed at the middle position of the top of the workbench, a mounting groove is opened on the top of the workbench, a hydraulic cylinder is fixedly installed inside the mounting groove, a top plate is fixedly installed on the top of the hydraulic cylinder, an upper stamping die is arranged below the top plate, a telescopic rod is arranged between the top plate and the upper stamping die, and springs are arranged around the telescopic rod.

[0006] As a preferred technical solution of the utility model, four legs are fixedly installed on the bottom of the workbench, and leg pads are fixedly installed on the bottoms of the four legs.

[0007] As a preferred technical solution of the utility model, a rectangular groove is provided on the top of the workbench, and a tool box is clamped inside the rectangular groove.

[0008] As a preferred technical solution of the utility model, a circular hole is opened on the surface of the upper stamping die and the circular hole penetrates the upper stamping die, a long rod is movably installed inside the circular hole and the bottom of the long rod is fixedly connected to the lower stamping die.

[0009] As a preferred technical solution of the utility model, there are two groups of the frames, and the two groups of the frames are distributed on the left and right sides of the lower stamping die.

[0010] As a preferred technical solution of the utility model, the inner diameter of the circular hole is equal to the outer diameter of the long rod, and the number of the circular holes and the number of the long rods are both four.

[0011] As a preferred technical solution of the utility model, the surface of the handle 1 and the surface of the handle 2 are both provided with a sponge layer, and the workbench is made of stainless steel as a whole.

[0012] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0013] 1. The utility model fixes the plate by means of a pressure plate after turning the handle 2 to make the threaded rod 2 rotate and move downward, and then adjusts the position of the U-shaped plate by turning the handle 1 to make the threaded rod 1 rotate and move upward, and then punches the plate on the surface of the lower punching die by moving the upper punching die downward. Compared with the traditional device, this device realizes rapid clamping of the plate, thereby reducing the time of manual operation and improving the working efficiency of the punching die, and at the same time ensures that the pressure plate can accurately and stably move to the surface of the pressure ring to clamp the material piece and prevent the material piece from shifting or moving during the punching process, thereby ensuring the quality of the stamped part, reducing the operation of workers in dangerous environments, reducing the risk of work-related accidents, and improving the safety of the production process.

[0014] 2. The utility model uses the power of the hydraulic cylinder to move the top plate downward as a whole. When the upper stamping die contacts the surface of the plate, it is in a contracted state due to the spring. After the plate is stamped, the reaction force of the spring can reset the upper stamping die. Compared with the traditional device, this device ensures that during the stamping process, when the punch press applies pressure, the die can be quickly and accurately reset to prepare for the next stamping operation. At the same time, it can maintain a stable reset state after each stamping, thereby ensuring the accuracy and consistency of the stamped parts, and enabling the die to maintain a stable position and accurate guidance during the stamping process, thereby avoiding the displacement or movement of the plate during the stamping process, thereby ensuring the dimensional accuracy and surface quality of the stamped parts and improving the product qualification rate. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the structure of the utility model;

[0016] Figure 2 This is a schematic diagram of the front structure of the utility model;

[0017] Figure 3 This is a schematic diagram of the cross-sectional structure of the workbench of the utility model;

[0018] Figure 4 This is a schematic diagram of the structure of the hydraulic cylinder of the utility model;

[0019] Figure 5 For this utility model Figure 3 Schematic diagram of the local enlarged structure at point A in the middle.

[0020] In the figure: 1. workbench; 2. mounting hole; 3. L-shaped plate; 4. sleeve 1; 5. threaded rod 1; 6. handle 1; 7. U-shaped plate; 8. hinged plate; 9. frame; 10. sleeve 2; 11. threaded rod 2; 12. handle 2; 13. pressure plate; 14. lower stamping die; 15. mounting groove; 16. hydraulic cylinder; 17. top plate; 18. telescopic rod; 19. upper stamping die; 20. spring; 21. round hole; 22. long rod; 23. rectangular groove; 24. tool box; 25. outrigger; 26. outrigger pad. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] like Figures 1 to 5 As shown, the utility model provides an automatic pulling and rotating clamping mechanism for automobile stamping dies, comprising a workbench 1, a mounting hole 2 is provided on the top of the workbench 1 and passes through the workbench 1, an L-shaped plate 3 is fixedly installed on the bottom of the workbench 1, a sleeve 4 is fixedly installed inside the L-shaped plate 3 and the sleeve 4 extends to the top of the workbench 1 through the mounting hole 2, a threaded rod 5 is movably installed inside the sleeve 4, a handle 6 is fixedly installed at the bottom of the threaded rod 5, a U-shaped plate 7 is fixedly installed on the top of the threaded rod 5, a hinged plate 8 is hinged inside the U-shaped plate 7, one end of the hinged plate 8 is fixedly installed with a frame 9, a sleeve 2 10 is fixedly installed inside the top of the frame 9, a threaded rod 2 11 is movably installed inside the sleeve 2 10, a handle 2 12 is fixedly installed at one end of the threaded rod 2 11, and a pressing plate 13 is fixedly installed at the other end of the threaded rod 2 11;

[0023] When in use, the staff places the automobile part on the surface of the lower stamping die 14, and then the staff inserts the protrusion of one end of the part into the frame 9, and then turns the handle 12 to make the threaded rod 11 rotate and move downward inside the sleeve 10, so that the pressing plate 13 is close to the protrusion of the part, and then the staff turns the handle 16 to make the threaded rod 15 rotate and move upward inside the sleeve 14, so that the U-shaped plate 7 moves upward synchronously, so as to adjust the overall height of the hinged plate 8, and then the staff uses the hydraulic cylinder 16 to move the upper stamping die 19 downward and stamp the part, and the impact force generated during stamping is offset by the arc movement formed by the hinge of the hinged plate 8, so as to improve the efficiency and safety of work;

[0024] Turning handle 2 12 causes threaded rod 2 11 to rotate and move downward, and then the plate is fixed by pressing plate 13. Then, turning handle 1 6 causes threaded rod 1 5 to rotate and move upward to adjust the position of U-shaped plate 7. Then, the plate on the surface of lower stamping die 14 is stamped by moving upper stamping die 19 downward. Compared with the traditional device, this device realizes rapid clamping of the plate, thereby reducing the time of manual operation and improving the working efficiency of the stamping die. At the same time, it ensures that the pressing plate 13 can accurately and stably move to the surface of the pressure ring to clamp the sheet and prevent the sheet from shifting or moving during the stamping process, thereby ensuring the quality of the stamped parts, reducing the operation of workers in dangerous environments, reducing the risk of work-related accidents, and improving the safety of the production process.

[0025] A lower punching die 14 is fixedly installed at the middle of the top of the workbench 1, a mounting groove 15 is provided on the top of the workbench 1, a hydraulic cylinder 16 is fixedly installed inside the mounting groove 15, a top plate 17 is fixedly installed on the top of the hydraulic cylinder 16, an upper punching die 19 is arranged below the top plate 17, a telescopic rod 18 is arranged between the top plate 17 and the upper punching die 19, and a spring 20 is arranged around the telescopic rod 18;

[0026] When the plate is fixed, the staff starts the hydraulic cylinder 16. The power of the hydraulic cylinder 16 causes the top plate 17 to move downward as a whole, and the upper punching die 19 also moves downward synchronously and contacts the surface of the plate to punch it. During the punching, the telescopic rod 18 is affected by the force so that the inner rod at the front end moves inward. At the same time, the spring 20 is affected by the force and presents a compressed state. Then, the upper punching die 19 is reset by the reaction force of the spring 20.

[0027] The power of the hydraulic cylinder 16 causes the top plate 17 to move downward as a whole. When the upper stamping die 19 contacts the surface of the plate, it is contracted by the spring 20. After the plate is stamped, the reaction force of the spring 20 can reset the upper stamping die 19. Compared with the traditional device, this device ensures that during the stamping process, when the punch press applies pressure, the die can be quickly and accurately reset to prepare for the next stamping operation. At the same time, it can maintain a stable reset state after each stamping, thereby ensuring the accuracy and consistency of the stamped parts, and enabling the die to maintain a stable position and accurate guidance during the stamping process, thereby avoiding the displacement or movement of the plate during the stamping process, thereby ensuring the dimensional accuracy and surface quality of the stamped parts and improving the product qualification rate.

[0028] Among them, four legs 25 are fixedly installed at the bottom of the workbench 1, and leg pads 26 are fixedly installed at the bottom of the four legs 25;

[0029] Four legs 25 are fixedly installed at the bottom of the workbench 1, and leg pads 26 are fixedly installed at the bottom of the four legs 25. The leg pads 26 can disperse the pressure from above, thereby improving the stability of the device during operation.

[0030] A rectangular groove 23 is formed on the top of the workbench 1, and a tool box 24 is connected to the inside of the rectangular groove 23;

[0031] A rectangular groove 23 is provided on the top of the workbench 1 , and a tool box 24 is clamped inside the rectangular groove 23 . The tool box 24 can be used to store tools, thereby improving the applicability of the device.

[0032] A circular hole 21 is formed on the surface of the upper stamping die 19 and penetrates the upper stamping die 19. A long rod 22 is movably installed inside the circular hole 21 and the bottom of the long rod 22 is fixedly connected to the lower stamping die 14.

[0033] A circular hole 21 is opened on the surface of the upper stamping die 19 and passes through the upper stamping die 19. A long rod 22 is movably installed inside the circular hole 21 and the bottom of the long rod 22 is fixedly connected to the lower stamping die 14. This design can ensure that the upper stamping die 19 is more stable on the way to the lower stamping die 14.

[0034] There are two groups of frames 9, which are distributed on the left and right sides of the lower punching die 14.

[0035] There are two groups of frames 9, which are distributed on the left and right sides of the lower stamping die 14. The simultaneous use of the two groups of frames 9 can achieve a better clamping effect of the device, thereby improving the quality of stamped automobile parts.

[0036] The inner diameter of the circular hole 21 is equal to the outer diameter of the long rod 22, and the number of the circular holes 21 and the number of the long rod 22 are both four.

[0037] The inner diameter of the circular hole 21 and the outer diameter of the long rod 22 are set to be equal in size, so that the long rod 22 fits better when moving inside the circular hole 21. There are four groups of circular holes 21 and long rods 22, so that the upper stamping die 19 is more stable during descent.

[0038] The surface of handle 1 6 and the surface of handle 2 12 are both provided with a sponge layer, and the workbench 1 is made of stainless steel as a whole;

[0039] A sponge layer is provided on the surface of handle 1 6 and the surface of handle 2 12 , which makes the workers more comfortable when using it. The workbench 1 is made of stainless steel as a whole, and the stainless steel has high strength and good rust resistance, thereby increasing the service life of the workbench 1.

[0040] The working principle and use process of this utility model:

[0041] When in use, the staff places the automobile part on the surface of the lower stamping die 14, and then the staff inserts the protrusion at one end of the part into the frame 9, and then turns the handle 12 to make the threaded rod 11 rotate and move downward inside the sleeve 10, so that the pressure plate 13 is close to the protrusion of the part, and then the staff turns the handle 6 to make the threaded rod 5 rotate and move upward inside the sleeve 4, so that the U-shaped plate 7 moves upward synchronously, thereby adjusting the overall height of the hinged plate 8, and then the staff uses the hydraulic cylinder 16 to move the upper stamping die 19 downward and stamp the part. The impact force generated during stamping is offset by the arc movement formed by the hinge of the hinged plate 8, thereby improving work efficiency and safety.

[0042] When the plate is fixed, the staff starts the hydraulic cylinder 16. The power of the hydraulic cylinder 16 causes the top plate 17 to move downward as a whole, and the upper stamping die 19 also moves downward synchronously and contacts the surface of the plate to stamp it. While stamping, the telescopic rod 18 is affected by the force so that the inner rod at its front end moves inward. At the same time, the spring 20 is affected by the force and is in a compressed state. Subsequently, the upper stamping die 19 is reset through the reaction force of the spring 20.

[0043] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0044] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An automatic pull-rotation clamping mechanism for automobile stamping dies, comprising a workbench (1), characterized in that: The top of the workbench (1) is provided with a mounting hole (2) which passes through the workbench (1); the bottom of the workbench (1) is fixedly mounted with an L-shaped plate (3); a sleeve (4) is fixedly mounted inside the L-shaped plate (3) and the sleeve (4) extends through the mounting hole (2) to the top of the workbench (1); a threaded rod (5) is movably mounted inside the sleeve (4); a handle (6) is fixedly mounted at the bottom of the threaded rod (5); and the threaded rod (5) is A U-shaped plate (7) is fixedly installed on the top, a hinged plate (8) is hinged inside the U-shaped plate (7), a frame (9) is fixedly installed on one end of the hinged plate (8), a sleeve (10) is fixedly installed inside the top of the frame (9), a threaded rod (11) is movably installed inside the sleeve (10), a handle (12) is fixedly installed on one end of the threaded rod (11), and a pressure plate (13) is fixedly installed on the other end of the threaded rod (11).

2. The automatic pull-rotation clamping mechanism for automobile stamping dies according to claim 1, characterized in that: A lower punching die (14) is fixedly installed at the middle position of the top of the workbench (1); a mounting groove (15) is provided on the top of the workbench (1); a hydraulic cylinder (16) is fixedly installed inside the mounting groove (15); a top plate (17) is fixedly installed on the top of the hydraulic cylinder (16); an upper punching die (19) is arranged below the top plate (17); a telescopic rod (18) is arranged between the top plate (17) and the upper punching die (19); and a spring (20) is arranged around the telescopic rod (18).

3. The automatic pull-rotation clamping mechanism for automobile stamping dies according to claim 1, characterized in that: Four supporting legs (25) are fixedly mounted on the bottom of the workbench (1), and supporting leg pads (26) are fixedly mounted on the bottoms of the four supporting legs (25).

4. The automatic pull-rotation clamping mechanism for automobile stamping dies according to claim 1, characterized in that: A rectangular groove (23) is provided on the top of the workbench (1), and a tool box (24) is clamped inside the rectangular groove (23).

5. The automatic pull-rotation clamping mechanism for automobile stamping dies according to claim 2, characterized in that: A circular hole (21) is provided on the surface of the upper punching die (19) and the circular hole (21) penetrates the upper punching die (19). A long rod (22) is movably installed inside the circular hole (21) and the bottom of the long rod (22) is fixedly connected to the lower punching die (14).

6. The automatic pull-rotation clamping mechanism for automobile stamping dies according to claim 2, characterized in that: There are two groups of the frames (9), and the two groups of the frames (9) are distributed on the left and right sides of the lower punching die (14).

7. The automatic pull-rotation clamping mechanism for automobile stamping dies according to claim 5, characterized in that: The inner diameter of the circular hole (21) is equal to the outer diameter of the long rod (22), and the number of the circular holes (21) and the number of the long rod (22) are both four.

8. The automatic pull-rotation clamping mechanism for automobile stamping dies according to claim 1, characterized in that: The surface of the first handle (6) and the surface of the second handle (12) are both provided with a sponge layer, and the workbench (1) is made entirely of stainless steel.

Images