Punching device for automobile body stamping part machining

Abstract

The utility model provides a punching device for automobile body stamping part machining, and belongs to the technical field of machining and stamping. Comprising a lower die, the top of the lower die is fixedly connected with a protruding block, the protruding block is used for supporting a part to be punched, a transmission block and an extrusion block which abut against each other are arranged in the protruding block, and the transmission block and the extrusion block are in sliding connection with the top of the lower die. The side face, not abutting against the transmission block, of the extrusion block is provided with a first inclined face, a second inclined face and a third inclined face, and the first inclined face, the second inclined face and the third inclined face are each provided with a punching mechanism. By arranging the stamping mechanism, when the stamping head needs to be detached and replaced, the stamping head can be rapidly detached and installed, a large number of bolts are not used any more, detaching is convenient and rapid, and a new stamping head can be conveniently adjusted and replaced.

Description

Technical Field

[0001] The utility model relates to the technical field of processing and stamping, in particular to a punching device for processing automobile body stamping parts. Background Technique

[0002] When producing automobiles, equipment such as punching presses are needed to cut, bend, stretch and other operations on metal materials for the automobile body to achieve the required shape and precision requirements. One common punching process is punching holes, where circular or rectangular holes need to be punched out of metal sheets through a die. These holes usually need to meet specific size and shape requirements to facilitate the installation of components or maintenance work. Components such as door and window frames, bumpers, and engine hoods all need to be punched.

[0003] The automobile body is composed of multiple components. When stamping, the stamping positions of some components are located in side dead corners. Generally, multiple punching heads need to be set on the stamping parts to punch holes on the side. However, the punching heads themselves are fixed to the die or installed with a large number of bolts. When the punching heads need to be repaired or the model needs to be changed, it is inconvenient to replace and adjust. Therefore, this application provides a punching device for processing automobile body stamping parts to meet the requirements. Content of the Utility Model

[0004] The technical problem to be solved by the utility model is to provide a punching device for processing automobile body stamping parts to solve the problem that the existing punching heads are fixed to the die or installed with a large number of bolts, and it is inconvenient to replace and adjust when the punching heads need to be repaired or the model needs to be changed.

[0005] To solve the above technical problem, the utility model provides the following technical solutions:

[0006] A punching device for processing automobile body stamping parts, comprising a lower mold, a protrusion fixedly connected to the top of the lower mold, the protrusion is used to support the parts to be punched, a transmission block and an extrusion block that conflict with each other are arranged inside the protrusion, the transmission block and the extrusion block are slidably connected to the top of the lower mold, the side of the extrusion block that does not conflict with the transmission block is respectively provided with a first inclined surface, a second inclined surface and a third inclined surface, the first inclined surface, the second inclined surface and the third inclined surface are all provided with a stamping mechanism, the stamping mechanism comprises a slider slidably connected to the top of the lower mold, a detachable A connected punching head, a sleeve passing through the slider and the punching head, the side surfaces of the slider are respectively slidably connected to the first inclined surface, the second inclined surface and the third inclined surface, a cylinder is sleeved inside the sleeve, one end of the cylinder is fixedly connected to a disc, the end of the sleeve close to the disc is rotatably connected to a plurality of arc blocks, the inner wall of the arc block can fit with the cylinder, the rotating connection of the arc block can conflict with the disc, the end of the sleeve close to the disc is also fixedly connected to a plurality of support columns, the end of the support column away from the sleeve passes through the disc and is fixedly connected to a blocking cover.

[0007] Preferably, an upper mold is arranged above the lower mold, and a pressing block is detachably connected to the bottom of the upper mold.

[0008] Preferably, a fourth inclined surface is formed on a side of the transmission block away from the extrusion block, and the fourth inclined surface is located below the pressing block.

[0009] Preferably, a plurality of springs are fixedly connected to the blocking cover, and one end of the spring away from the blocking cover is fixedly connected to the disc.

[0010] Preferably, a circular ring is fixedly connected to the outer edge surface of the sleeve, and the circular ring can abut against the sliding block to limit the position of the sleeve.

[0011] Preferably, a limiting block surrounding the protrusion is fixedly connected to the top of the lower mold, and the limiting block is used to limit the part to be punched.

[0012] Compared with the prior art, the utility model has at least the following beneficial effects:

[0013] The spring is pressed against the cylinder to allow the cylinder to move in a direction close to the cover so that the disc on the cylinder is pushed and no longer conflicts with the arc block. The disc squeezes the spring until it is about to conflict with the cover and the arc block is no longer limited by the disc and rotates to fit the cylinder. At this time, the sleeve and the cylinder can be directly pulled out, and the connection between the slider and the punch head is released, so that the punch head can be directly disassembled. After replacing the new punch head, continue to press the cylinder to allow the sleeve to penetrate the slider and the punch head again until the ring conflicts with the slider. Then, the cylinder is no longer pressed and the disc rebounds under the action of the spring, driving the arc block to open and conflict with the slider to complete the connection. The advantage of this is that the punch head can be quickly disassembled and installed without using a large number of bolts. The disassembly is convenient and quick, and it is easy to adjust and replace the new punch head.

[0014] By setting the transmission block and the fourth inclined plane, when punching the side of the required stamping part, the required stamping part is placed on the protrusion, and the limit block limits it, so that the upper mold is pressed downward, driving the pressure block to contact the fourth inclined plane, and then the pressure block continues to move downward along the fourth inclined plane, and the transmission block slides on the top of the lower mold, driving the extrusion block to move, and several sliders are driven by the extrusion block to move along the first inclined plane, the second inclined plane and the third inclined plane on the lower mold respectively until the punching head completes the punching of the side of the required stamping part. The advantage of this is that the upper mold does not directly contact the punching head, and the extrusion block is driven by the transmission block to punch some dead corners on the side that are not easy to be punched, thereby solving the problem of dead corners being difficult to punch. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The accompanying drawings, which are incorporated herein and constitute a part of the specification, illustrate embodiments of the present disclosure and, together with the description, further serve to explain the principles of the present disclosure and to enable those skilled in the relevant art to make and use the present disclosure.

[0016] Figure 1 It is a schematic diagram of the three-dimensional structure of a punching device for processing automobile body stamping parts;

[0017] Figure 2 Schematic diagram of the three-dimensional structure of the lower mold;

[0018] Figure 3 It is a schematic diagram of the three-dimensional structure of the stamping mechanism;

[0019] Figure 4 It is a three-dimensional enlarged structural diagram of the sleeve and the cylinder after assembly;

[0020] Figure 5 It is a schematic diagram of the three-dimensional enlarged structure of the sleeve;

[0021] Figure 6 It is a schematic diagram of the cylindrical three-dimensional enlarged structure.

[0022] [Reference Signs]

[0023] 1. Upper mold; 2. Press block; 3. Lower mold; 4. Bump; 5. Transmission block; 6. Extrusion block; 7. Stamping mechanism; 8. First inclined plane; 9. Second inclined plane; 10. Third inclined plane; 11. Fourth inclined plane; 12. Slider; 13. Punching head; 14. Sleeve; 15. Arc block; 16. Support column; 17. Block cover; 18. Cylinder; 19. Disc; 20. Ring; 21. Spring; 22. Limit block.

[0024] As shown in the figure, in order to clearly implement the structure of the embodiment of the utility model, specific structures and devices are marked in the figure, but this is only for illustrative purposes and is not intended to limit the utility model to the specific structure, device and environment. According to specific needs, ordinary technicians in this field can adjust or modify these devices and environments, and the adjustments or modifications made are still included in the scope of the attached claims. DETAILED DESCRIPTION

[0025] The following is a detailed description of a punching device for automobile body stamping parts processing provided by the utility model in combination with the drawings and specific embodiments. At the same time, it is explained here that in order to make the embodiments more detailed, the following embodiments are the best and preferred embodiments, and those skilled in the art may also adopt other alternative methods to implement some known technologies; and the drawings are only for more specific description of the embodiments, and are not intended to specifically limit the utility model.

[0026] like Figures 1-6As shown in the figure, an embodiment of the present utility model provides a punching device for processing automotive body stamping parts, including a lower die 3. A convex block 4 is fixedly connected to the top of the lower die 3. The convex block 4 is used to support the parts to be punched. Inside the convex block 4, there are a driving block 5 and a pressing block 6 that are in contact with each other. The driving block 5 and the pressing block 6 are slidably connected to the top of the lower die 3. On the sides of the pressing block 6 that are not in contact with the driving block 5, a first inclined surface 8, a second inclined surface 9, and a third inclined surface 10 are respectively provided. Stamping mechanisms 7 are arranged on the first inclined surface 8, the second inclined surface 9, and the third inclined surface 10. The stamping mechanism 7 includes a slider 12 slidably connected to the top of the lower die 3, a punching head 13 detachably connected to the top of the slider 12, and a sleeve 14 passing through the slider 12 and the punching head 13. The sides of the slider 12 are respectively slidably connected to the first inclined surface 8, the second inclined surface 9, and the third inclined surface 10. A cylinder 18 is sleeved inside the sleeve 14. One end of the cylinder 18 is fixedly connected to a disc 19. Several arc-shaped blocks 15 are rotatably connected to one end of the sleeve 14 close to the disc 19. The inner wall of the arc-shaped block 15 can be fitted with the cylinder 18, and the rotating connection of the arc-shaped block 15 can be in contact with the disc 19. Several support columns 16 are also fixedly connected to one end of the sleeve 14 close to the disc 19. The ends of the support columns 16 away from the sleeve 14 penetrate the disc 19 and are fixedly connected to a retaining cover 17. Several springs 21 are fixedly connected to the retaining cover 17. The ends of the springs 21 away from the retaining cover 17 are fixedly connected to the disc 19. A ring 20 is fixedly connected to the outer surface of the sleeve 14. The ring 20 can be in contact with the slider 12 for limiting the sleeve 14.

[0027] By setting the stamping mechanism 7, when it is necessary to disassemble and replace the punching head 13, only need to press the cylinder 18 to make it move in the sleeve 14 in the direction close to the retaining cover 17, so that the disc 19 on the cylinder 18 is pushed and no longer in contact with the arc-shaped block 15. The disc 19 compresses the spring 21 until it is almost in contact with the retaining cover 17. The arc-shaped block 15 is no longer limited by the disc 19 and rotates to fit with the cylinder 18. At this time, the entire sleeve 14 and the cylinder 18 can be directly pulled out to release the connection between the slider 12 and the punching head 13, so that the punching head 13 can be directly disassembled. After replacing the new punching head 13, continue to press the cylinder 18 to make the sleeve 14 penetrate the slider 12 and the punching head 13 again until the ring 20 is in contact with the slider 12. Then stop pressing the cylinder 18. Under the action of the spring 21, the disc 19 rebounds, driving the arc-shaped block 15 to open and be in contact with the slider 12 to complete the connection. The advantage of doing this is that the punching head 13 can be quickly disassembled and installed, without using a large number of bolts, and the disassembly is convenient and fast, which is convenient for adjustment and replacement of the new punching head 13.

[0028] Such as Figure 1 And Figure 2As shown, in this embodiment, an upper mold 1 is arranged above the lower mold 3, and a pressure block 2 is detachably connected to the bottom of the upper mold 1. A fourth inclined surface 11 is provided on the side of the transmission block 5 away from the extrusion block 6, and the fourth inclined surface 11 is located below the pressure block 2. A limit block 22 surrounding the protrusion 4 is fixedly connected to the top of the lower mold 3, and the limit block 22 is used to limit the parts to be punched.

[0029] By setting the transmission block 5 and the fourth inclined surface 11, when punching the side of the required stamping component, the required stamping component is placed on the protrusion 4, and the limit block 22 limits it, so that the upper mold 1 is pressed down, driving the pressure block 2 to contact the fourth inclined surface 11, and then the pressure block 2 continues to move downward along the fourth inclined surface 11, and the transmission block 5 slides on the top of the lower mold 3, driving the extrusion block 6 to move, and a number of sliders 12 are driven by the extrusion block 6 to move along the first inclined surface 8, the second inclined surface 9 and the third inclined surface 10 on the lower mold 3, until the punching head 13 completes the punching of the side of the required stamping component. The advantage of this is that the upper mold 1 does not directly contact the punching head 13, and the extrusion block 6 is driven by the transmission block 5 to punch some dead corners on the side that are not easy to be punched, thereby solving the problem of dead corners being difficult to punch.

[0030] The technical solution provided by the utility model is to set up a punching mechanism 7. When the punching head 13 needs to be disassembled and replaced, it is only necessary to press the cylinder 18 to move it in the sleeve 14 toward the direction close to the stop cover 17, so that the disk 19 on the cylinder 18 is pushed and no longer conflicts with the arc block 15. The disk 19 squeezes the spring 21 until it is about to conflict with the stop cover 17. The arc block 15 is no longer limited by the disk 19 and rotates to fit with the cylinder 18. At this time, the sleeve 14 and the cylinder 18 can be directly pulled out, releasing the slider 12 and the punching head. The connection relationship of 13 allows the punch head 13 to be directly disassembled. After replacing the new punch head 13, continue to press the cylinder 18 to allow the sleeve 14 to penetrate the slider 12 and the punch head 13 again until the ring 20 contacts the slider 12, and then stop pressing the cylinder 18. Under the action of the spring 21, the disk 19 rebounds, driving the arc block 15 to open and contact the slider 12 to complete the connection. The advantage of this is that the punch head 13 can be quickly disassembled and installed without using a large number of bolts. The disassembly is convenient and quick, and it is easy to adjust and replace the new punch head 13.

[0031] By setting the transmission block 5 and the fourth inclined surface 11, when punching the side of the required stamping part, place the required stamping part on the bump 4, and the limit block 22 limits it. Let the upper die 1 press down, driving the pressure block 2 to contact the fourth inclined surface 11. Then the pressure block 2 continues to move downward along the fourth inclined surface 11, and the transmission block 5 slides on the top of the lower die 3, driving the extrusion block 6 to move. A number of sliders 12 are driven by the extrusion block 6 to move on the lower die 3 along the first inclined surface 8, the second inclined surface 9 and the third inclined surface 10 respectively until the punching head 13 completes punching the side of the required stamping part. The advantage of this is that the upper die 1 does not directly contact the punching head 13, and the extrusion block 6 can be driven by the transmission block 5 to punch into some dead corners where the sides are not easily punched, solving the problem of difficult punching in dead corners.

[0032] The present utility model covers any alternatives, modifications, equivalent methods and solutions made on the essence and scope of the present utility model. In order to enable the public to have a thorough understanding of the present utility model, specific details are described in detail in the above preferred embodiments of the present utility model, and those skilled in the art can fully understand the present utility model without the description of these details. In addition, in order to avoid unnecessary confusion to the essence of the present utility model, well-known methods, processes, procedures, components and circuits are not described in detail.

[0033] Those of ordinary skill in the art can understand that all or part of the steps in the methods of the above embodiments can be completed by instructing relevant hardware through a program, and the program can be stored in a computer-readable storage medium, such as: ROM / RAM, magnetic disk, optical disk, etc.

[0034] The above are only the preferred embodiments of the present utility model. It should be noted that for those of ordinary skill in the art, without departing from the principle of the present utility model, several improvements and retouches can be made, and these improvements and retouches should also be regarded as the protection scope of the present utility model.

Claims

1. A punching device for processing automobile body stamping parts, characterized in that, include: A lower mold (3), wherein a protrusion (4) is fixedly connected to the top of the lower mold (3), and the protrusion (4) is used to support the parts to be punched. A transmission block (5) and an extrusion block (6) that contact each other are arranged inside the protrusion (4). The transmission block (5) and the extrusion block (6) are slidably connected to the top of the lower mold (3). The side surface of the extrusion block (6) that does not contact the transmission block (5) is respectively provided with a first inclined surface (8), a second inclined surface (9) and a third inclined surface (10). The first inclined surface (8), the second inclined surface (9) and the third inclined surface (10) are all provided with a punching mechanism (7). The punching mechanism (7) comprises a slider (12) slidably connected to the top of the lower mold (3), a punching head (13) detachably connected to the top of the slider (12), and a sleeve (14) passing through the slider (12) and the punching head (13); the side surfaces of the slider (12) are slidably connected to the first inclined surface (8), the second inclined surface (9) and the third inclined surface (10), respectively; a cylinder (18) is sleeved inside the sleeve (14), and one end of the cylinder (18) is fixedly connected to a disk (1 9), one end of the sleeve (14) close to the disc (19) is rotatably connected to a plurality of arc blocks (15), the inner wall of the arc block (15) can fit with the cylinder (18), and the rotatable connection of the arc block (15) can abut against the disc (19), and one end of the sleeve (14) close to the disc (19) is also fixedly connected to a plurality of support columns (16), and one end of the support column (16) away from the sleeve (14) passes through the disc (19) and is fixedly connected to a blocking cover (17).

2. The punching device for processing automotive body stamping parts according to claim 1, characterized in that, An upper mold (1) is arranged above the lower mold (3), and a pressing block (2) is detachably connected to the bottom of the upper mold (1).

3. The punching device for processing automobile body stamping parts according to claim 2, characterized in that, A fourth inclined surface (11) is provided on a side of the transmission block (5) away from the extrusion block (6), and the fourth inclined surface (11) is located below the pressing block (2).

4. The punching device for processing automobile body stamping parts according to claim 1, characterized in that, A plurality of springs (21) are fixedly connected to the blocking cover (17), and one end of the spring (21) away from the blocking cover (17) is fixedly connected to the disc (19).

5. The punching device for processing automotive body stamping parts according to claim 1, characterized in that, A circular ring (20) is fixedly connected to the outer edge surface of the sleeve (14), and the circular ring (20) can abut against the sliding block (12) to limit the position of the sleeve (14).

6. The punching device for processing automotive body stamping parts according to claim 1, wherein, A limiting block (22) surrounding the protrusion (4) is fixedly connected to the top of the lower mold (3), and the limiting block (22) is used to limit the position of the component to be punched.

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