A clamping device for automobile stamping

Abstract

The utility model belongs to the technical field of automobile parts processing, disclose a kind of clamping device for automobile stamping, including base, the middle part both sides of base are equipped with sliding slot, the inside sliding connection of sliding slot has moving block, the top fixed connection of moving block has clamping block, the side of two moving blocks is rotatably connected with connecting rod, rotatably connected with push rod between two connecting rods, the middle part sliding connection of push rod and base, the top fixed connection of push rod has top block, in the scheme, device is rotatably connected with connecting rod, push rod by moving block, realize the linkage of clamping and material withdrawal action, when moving block slides towards each other in clamping stage, by connecting rod pull push rod and make top block retract square groove, do not interfere with sheet metal positioning;When moving block is mutually far away in material withdrawal stage, by connecting rod push push rod and make top block eject sheet metal, need not to set material withdrawal drive assembly extra, simplify device structure, reduce operation step, improve process coherence.

Description

Technical Field

[0001] This utility model relates to the field of automotive parts processing technology, specifically to a clamping device for automotive stamping. Background Technology

[0002] In the automotive parts manufacturing process, stamping is one of the processes for forming metal parts. The clamping device, as the equipment for fixing the metal sheet during stamping, directly affects the processing and production efficiency of stamped parts.

[0003] Chinese Patent Publication No. CN221312076U discloses a hardware stamping forming clamping device, including a worktable. A moving mechanism is installed through the outer surface of the worktable, and clamping mechanisms are fixedly connected through both ends of the moving mechanism. A positioning mechanism is installed through the outer surface of the movable end of the clamping mechanism. A lower die base is fixedly connected to the upper surface of the worktable, and a die cavity is embedded and fixedly installed inside the lower die base.

[0004] However, the aforementioned patents lack an ejection mechanism for the stamped workpiece. After stamping, the workpiece tends to stick to the inner wall of the die cavity or the surface of the lower die base due to the stamping pressure, requiring manual removal, which is inconvenient and has certain limitations in use.

[0005] Based on this, the present invention designs a clamping device for automobile stamping to solve the above problems. Utility Model Content

[0006] In view of the above-mentioned shortcomings of the existing technology, the present invention provides a clamping device for automobile stamping.

[0007] To achieve the above objectives, this utility model provides the following technical solution:

[0008] A clamping device for automotive stamping includes a base, with grooves on both sides of the middle portion of the base. A movable block is slidably connected inside the groove, and a clamping block is fixedly connected above the movable block. A connecting rod is rotatably connected to one side of each of the two movable blocks, and a push rod is rotatably connected between the two connecting rods. The push rod is slidably connected to the middle portion of the base, and a top block is fixedly connected above the push rod.

[0009] Furthermore, a square groove is provided in the middle of the base, and the top block is located inside the square groove.

[0010] Furthermore, a bidirectional screw is rotatably connected to the lower part of the base, and the two sides of the outer wall of the bidirectional screw are respectively threaded to the lower part of the two moving blocks. A limit rod is fixedly connected to the lower part of the base, and the moving blocks and the limit rod are slidably connected.

[0011] Furthermore, a motor is fixedly connected to the bottom of the base.

[0012] Furthermore, bevel gears are fixedly connected to both the output end of the motor and the middle part of the bidirectional screw, and the two bevel gears mesh with each other.

[0013] Furthermore, a top plate is fixedly connected to the top of the base, a hydraulic cylinder is fixedly connected to the bottom of the top plate, and a stamping block is fixedly connected to the output end of the hydraulic cylinder.

[0014] Furthermore, two lower modules are fixedly connected to the top of the base, and the square slot is located between the two lower modules.

[0015] Furthermore, a metal plate is placed on top of the two lower modules.

[0016] Beneficial effects

[0017] (1) In this scheme, the device realizes the linkage of clamping and unloading actions by rotating the moving block, connecting rod and push rod. When the moving blocks slide towards each other during the clamping stage, the push rod is pulled by the connecting rod to make the top block retract into the square groove, without interfering with the positioning of the metal plate. When the moving blocks move away from each other during the unloading stage, the push rod is pushed by the connecting rod to make the top block push out of the metal plate. There is no need to set up an additional unloading drive component, which simplifies the structure of the device, reduces the operation steps, and improves the continuity of the process.

[0018] (2) In this scheme, the motor drives the bidirectional screw to rotate through the bevel gear, and the limit rod restricts the sliding of the moving block, so that the two moving blocks slide synchronously towards each other along the slide groove, thereby driving the clamping block to form a symmetrical clamping of the metal plate, and avoiding the metal plate from being affected by the clamping offset, thus affecting the stamping quality.

[0019] (3) In this scheme, the overall device controls the clamping and unloading actions by the motor and the stamping action by the hydraulic cylinder. The actions of each component can be coordinated and linked by the control system. There is no need to manually adjust the clamping block or operate the unloading component. Compared with the traditional manual device, the clamping preparation and unloading time is greatly shortened, the manual intervention steps are reduced, and the stamping operation volume per unit time is increased. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 This is a perspective view of the main structure of a clamping device for automobile stamping according to the present invention;

[0022] Figure 2 This is a partial structural schematic diagram of a clamping device for automobile stamping according to the present invention;

[0023] Figure 3 for Figure 2 Enlarged structural diagram of region A in the middle;

[0024] Figure 4 This invention relates to the connection relationship between a moving block and a bidirectional screw in a clamping device for automotive stamping.

[0025] Figure 5 This is a schematic diagram showing the positional relationship between the square groove and the base in a clamping device for automobile stamping according to the present invention.

[0026] The labels in the diagram represent:

[0027] 1. Base; 11. Top plate; 12. Hydraulic cylinder; 13. Stamping block; 14. Lower module; 15. Square slot; 16. Metal plate; 17. Slide groove; 18. Moving block; 19. Clamping block; 2. Bidirectional screw; 21. Limiting rod; 22. Motor; 23. Bevel gear; 24. Connecting rod; 25. Push rod; 26. Top block. Detailed Implementation

[0028] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0029] The present invention will be further described below with reference to the embodiments.

[0030] In some embodiments, please refer to the appendix to the instruction manual. Figure 1-5A clamping device for automotive stamping includes a base 1. Slide grooves 17 are formed on both sides of the middle portion of the base 1. Moving blocks 18 are slidably connected inside the slide grooves 17. Clamping blocks 19 are fixedly connected above the moving blocks 18. Connecting rods 24 are rotatably connected to one side of each of the two moving blocks 18. A push rod 25 is rotatably connected between the two connecting rods 24. The push rod 25 is slidably connected to the middle portion of the base 1. A top block 26 is fixedly connected above the push rod 25. A square groove 15 is formed in the middle portion of the base 1. The top block 26 is located inside the square groove 15. A bidirectional screw 2 is rotatably connected to the bottom of the base 1. The two sides of the outer wall of the bidirectional screw 2 are threadedly connected to the bottom of the two moving blocks 18. A limiting rod 21 is fixedly connected to the bottom of the base 1. The moving blocks 18 and the limiting rod 21 are slidably connected. A motor 22 is fixedly connected to the bottom of the base 1. Bevel gears 23 are fixedly connected to the output end of the motor 22 and the middle portion of the bidirectional screw 2. The two bevel gears 23 mesh.

[0031] In this embodiment of the invention, the device drives the bevel gear 23 via the motor 22 to rotate the bidirectional screw 2. Since the outer walls of the bidirectional screw 2 are threadedly connected to the lower parts of the two moving blocks 18, and the moving blocks 18 are slidably engaged with the limiting rod 21 below the base 1, it can ensure that the two moving blocks 18 slide symmetrically and synchronously along the sliding grooves 17 on both sides of the middle part of the base 1. This transmission structure can avoid the problems of uneven clamping force and asynchronous displacement caused by manual adjustment or unilateral drive in traditional clamping devices. It enables the clamping block 19 fixed above the moving block 18 to form a balanced and stable clamping force on the metal plate 16, effectively preventing the metal plate 16 from shifting during the stamping process and improving the stamping accuracy.

[0032] Both movable blocks 18 have rotating connecting rods 24 on one side, and the two connecting rods 24 are rotatably connected to the push rod 25. When the movable blocks 18 slide towards each other along the slide groove 17, they will pull the push rod 25 downward in the middle of the base 1 through the connecting rods 24, so that the top block 26 above the push rod 25 is retracted into the square groove 15 in the middle of the base 1, so as to avoid the top block 26 interfering with the clamping and positioning of the metal plate 16. At the same time, the clamping block 19 can stably fix the metal plate 16 above the lower module 14, providing a stable foundation for stamping.

[0033] After stamping is completed, the motor 22 reverses and drives the bidirectional screw 2 to rotate in the opposite direction, causing the two moving blocks 18 to move away from each other along the slide groove 17. At this time, the moving blocks 18 push the push rod 25 to slide upward in the middle of the base 1 through the connecting rod 24, so that the top block 26 extends out from the square groove 15 and directly acts on the bottom of the stamped metal plate 16 in the lower module 14, pushing the metal plate 16 out of the lower module 14. This linkage design does not require additional material ejection drive components. Automatic material ejection can be achieved by using the reverse action of the clamping mechanism. This not only simplifies the device structure and reduces manufacturing costs, but also avoids the risk of burns and scratches that may occur when manually picking up materials. At the same time, it shortens the interval time between stamping and material picking, and greatly improves the overall processing efficiency.

[0034] In some embodiments, such as Figure 1-5 As shown, in a preferred embodiment of the present invention, a top plate 11 is fixedly connected above the base 1, a hydraulic cylinder 12 is fixedly connected below the top plate 11, a stamping block 13 is fixedly connected to the output end of the hydraulic cylinder 12, two lower modules 14 are fixedly connected above the base 1, a square groove 15 is located between the two lower modules 14, and a metal plate 16 is placed above the two lower modules 14.

[0035] In this embodiment of the utility model, the top plate 11 fixedly connected above the base 1 provides an installation base for the hydraulic cylinder 12. The stamping block 13 fixed at the output end of the hydraulic cylinder 12 corresponds vertically to the two lower modules 14 above the base 1, and the square groove 15 is located between the two lower modules 14 to ensure that when the stamping block 13 presses downward, it can act on the metal plate 16 fixed above the lower module 14, thus avoiding processing defects caused by stamping position offset.

[0036] The working principle of this utility model is as follows: the operator places the metal plate 16 to be stamped between the two lower modules 14 above the base 1, so that the metal plate 16 is stably placed on the two lower modules 14. At this time, the top block 26 above the push rod 25 is in the square groove 15 in the middle of the base 1, and does not interfere with the placement and positioning of the metal plate 16. The motor 22 located below the base 1 is started. The output end of the motor 22 drives the bevel gear 23 fixed to it to rotate. The bevel gear 23 meshes with the bevel gear 23 fixed in the middle of the bidirectional screw 2, thereby driving the bidirectional screw 2 to rotate below the base 1. Since the outer walls of the bidirectional screw 2 are threadedly connected to the lower parts of the two moving blocks 18, and the moving blocks 18 are slidably engaged with the limiting rod 21 below the base 1, when the bidirectional screw 2 rotates, it will drive the two moving blocks 18 to slide towards each other along the sliding grooves 17 on both sides of the middle of the base 1. During the sliding process of the moving blocks 18, the clamping blocks 19 fixed above them move together until the two clamping blocks 19 contact the two sides of the metal plate 16 and form a clamping fixation. At the same time, the connecting rod 24 rotatably connected to one side of the moving block 18 moves with the moving block 18, pulling the push rod 25 to slide downward in the middle of the base 1, ensuring that the top block 26 is always in the square groove 15, so as to avoid affecting the clamping action.

[0037] After the metal plate 16 is clamped and fixed, the hydraulic cylinder 12 fixed below the top plate 11 is activated. The output end of the hydraulic cylinder 12 drives the stamping block 13 to extend downward. Since the stamping block 13 corresponds vertically to the two lower modules 14, when the stamping block 13 moves downward, it will directly act on the metal plate 16 above the lower module 14 to stamp the metal plate 16 until the metal plate 16 forms a preset shape. Then the hydraulic cylinder 12 drives the stamping block 13 to retract upward to the initial position.

[0038] After stamping is completed, the control motor 22 reverses. The motor 22 drives the bidirectional screw 2 to rotate in the opposite direction through the bevel gear 23. The bidirectional screw 2 drives the two moving blocks 18 to move away from each other along the slide groove 17. During the movement of the moving blocks 18 away, the clamping block 19 moves with them to release the clamping of the metal plate 16. At the same time, the moving blocks 18 push the push rod 25 to slide upward in the middle of the base 1 through the connecting rod 24. The push rod 25 drives the top block 26 to extend out from the square groove 15. The top block 26 acts on the bottom of the stamped metal plate 16 between the lower modules 14, pushing the metal plate 16 out of the lower module 14. The operator can then remove the processed metal plate 16, completing a complete stamping operation.

[0039] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions will not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A clamping device for automotive stamping, comprising a base (1), characterized in that: The base (1) has sliding grooves (17) on both sides of the middle part. A moving block (18) is slidably connected inside the sliding groove (17). A clamping block (19) is fixedly connected above the moving block (18). A connecting rod (24) is rotatably connected to one side of each of the two moving blocks (18). A push rod (25) is rotatably connected between the two connecting rods (24). The push rod (25) is slidably connected to the middle part of the base (1). A top block (26) is fixedly connected above the push rod (25).

2. The clamping device for automobile stamping according to claim 1, characterized in that, The base (1) has a square groove (15) in the middle, and the top block (26) is located inside the square groove (15).

3. The clamping device for automobile stamping according to claim 2, characterized in that, A bidirectional screw (2) is rotatably connected to the bottom of the base (1). The two sides of the outer wall of the bidirectional screw (2) are threaded to the bottom of two moving blocks (18) respectively. A limit rod (21) is fixedly connected to the bottom of the base (1). The moving blocks (18) and the limit rod (21) are slidably connected.

4. The clamping device for automobile stamping according to claim 3, characterized in that, A motor (22) is fixedly connected to the bottom of the base (1).

5. The clamping device for automobile stamping according to claim 4, characterized in that, The output end of the motor (22) and the middle part of the bidirectional screw (2) are both fixedly connected to bevel gears (23), and the two bevel gears (23) mesh.

6. The clamping device for automobile stamping according to claim 1, characterized in that, A top plate (11) is fixedly connected above the base (1), and a hydraulic cylinder (12) is fixedly connected below the top plate (11). A stamping block (13) is fixedly connected to the output end of the hydraulic cylinder (12).

7. The clamping device for automobile stamping according to claim 2, characterized in that, Two lower modules (14) are fixedly connected to the top of the base (1), and the square groove (15) is located between the two lower modules (14).

8. The clamping device for automobile stamping according to claim 7, characterized in that, A metal plate (16) is placed on top of the two lower modules (14).

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