A punching device having a punching cam mechanism

Abstract

The utility model discloses a kind of stamping device with punching inclined wedge mechanism, it includes: upper die mechanism, lower die mechanism, punch and inclined wedge mechanism, lower die mechanism is set in the below of upper die mechanism, two inclined wedge mechanisms are provided on upper die mechanism, two inclined wedge mechanisms are symmetrically arranged, punch is connected on inclined wedge mechanism;Upper die mechanism includes upper die holder and pressing plate, pressing plate is connected in the below of upper die holder, and first through-hole that inclined wedge mechanism passes through is provided on pressing plate;Inclined wedge mechanism includes driving block, guide mounting seat, inclined wedge mounting seat, limit block and return hook, guide mounting seat is connected on pressing plate, second through-hole is provided on guide mounting seat, inclined wedge mounting seat is movably connected in second through-hole, limit slot is provided on inclined wedge mounting seat, one end of limit block is slidably connected in limit slot, the other end of limit block is connected on guide mounting seat.The utility model compared with prior art can solve the problem that existing inclined wedge cannot meet punching machining precision.

Description

Technical Field

[0001] This utility model relates to the field of mold technology, and in particular to a stamping device with a punching wedge mechanism. Background Technology

[0002] In general parts, the sidewalls of the product have mounting holes or positioning holes. These holes require very high precision on the sidewalls, and the influence of the sidewalls can cause problems for designers in terms of the blank holder and punch angle. If the traditional process of punching holes first and then forming is used, there will be drawbacks. The holes are prone to deformation and cannot achieve the required assembly precision. The parts produced in this way are completely unusable and unacceptable to customers. If a standard wedge is used, the position of the part will be restricted. This conventional standard wedge is suitable for most products. However, the disadvantages of this standard wedge are that it requires a large mold space, has high cost, cannot meet the punch angle requirements, has low machining accuracy, and is difficult to achieve the blank holder angle, among other processing problems. Utility Model Content

[0003] The purpose of this utility model is to provide a stamping device with a punching wedge mechanism in order to solve the problem that the existing wedges cannot meet the processing accuracy of punching.

[0004] To achieve the above objectives, this utility model provides a stamping device with a punching wedge mechanism, comprising: an upper die mechanism, a lower die mechanism, a punch, and a wedge mechanism. The lower die mechanism is disposed below the upper die mechanism, and two wedge mechanisms are disposed on the upper die mechanism. The two wedge mechanisms are arranged symmetrically, and the punch is connected to the wedge mechanism.

[0005] The upper mold mechanism includes an upper mold base and a pressure plate. The pressure plate is connected below the upper mold base and has a first through hole through which the wedge mechanism passes.

[0006] The wedge mechanism includes a drive block, a guide mounting seat, a wedge mounting seat, a limiting block, and a return hook. The guide mounting seat is connected to the pressure plate and has a second through hole. The wedge mounting seat is movably connected within the second through hole and has a limiting groove. One end of the limiting block is slidably connected within the limiting groove, and the other end of the limiting block is connected to the guide mounting seat. The top end of the wedge mounting seat is connected to the drive block, which is connected to the upper mold base. Return hooks are provided on both sides of the drive block, and the bottom end of the return hook is connected to the wedge mounting seat.

[0007] As a further description of the above technical solution:

[0008] A lubrication plate is provided between the drive block and the wedge mounting base.

[0009] As a further description of the above technical solution:

[0010] A punch pad is connected to the wedge mounting base, a punch clamp is connected to the punch pad, and the punch is connected to the punch clamp.

[0011] As a further description of the above technical solution:

[0012] A first nitrogen spring is provided on each side of the wedge mounting base. One end of the first nitrogen spring is connected to the wedge mounting base, and the other end of the first nitrogen spring is connected to the guide mounting base.

[0013] As a further description of the above technical solution:

[0014] The lower mold mechanism includes a lower template, a lower mold base, lower pads, and a lower support plate. Multiple lower pads are connected to the lower support plate. The lower mold base is connected to the top of the lower pads. The lower template is connected to the lower mold base. A first blanking hole is provided on the lower template. A second blanking hole is provided below the first blanking hole. The second blanking hole is provided on the lower mold base.

[0015] As a further description of the above technical solution:

[0016] The lower template is provided with an installation groove, and a cutting edge insert is provided in the installation groove. The first material discharge hole passes through the cutting edge insert.

[0017] As a further description of the above technical solution:

[0018] Several second nitrogen springs are provided between the upper mold base and the pressure plate.

[0019] In summary, due to the adoption of the above technical solution, the beneficial effects of this utility model are as follows: When the pressure plate first contacts the product, the pressure plate and the lower template engage to first complete the pressing of the product. During the gradual movement, the punch moves upward at the angle set by the guide mounting seat and contacts the drive block. Under the action of the limiting block, after the pressure plate reaches its set height, the punch completes its mission, punching away the waste area on the product. At this time, the waste is discharged from the mold along the first and second discharge holes. By setting the limiting block, the movement stroke of the punch can be limited. This device ensures the punch's feed rate into the product, improving punching quality. When the pressure plate returns to its original position, it leaves the product. At this point, under the action of the second nitrogen spring, the punch and wedge mounting base move downwards towards the guide mounting base under their own weight. The second nitrogen spring, under its own force, causes the pressure plate to float out of the punch, allowing the punch to completely exit the product. The entire movement process ensures that the hole size and position of the product meet assembly requirements, improving the product's processing quality. Furthermore, this device is easy to replace later, has low cost, is easy to process, and simultaneously meets the product's precision requirements. Attached Figure Description

[0020] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 This is a schematic diagram of a stamping device with a punching wedge mechanism.

[0022] Figure 2 A cross-sectional view of a stamping device with a punching wedge mechanism. Figure 1 .

[0023] Figure 3 A cross-sectional view of a stamping device with a punching wedge mechanism. Figure 2 .

[0024] Figure 4 This is a schematic diagram of the structure for removing the upper die holder in a stamping device with a punching wedge mechanism.

[0025] Figure 5 This is a schematic diagram of the wedge mechanism in a stamping device with a punching wedge mechanism.

[0026] Figure 6 This is an exploded view of the wedge mechanism in a stamping device with a punching wedge mechanism.

[0027] Figure 7 This is a schematic diagram of the product structure before molding.

[0028] Figure 8 This is a schematic diagram of the product structure after molding.

[0029] Legend:

[0030] 1. Upper die mechanism; 11. Upper die base; 12. Pressure plate; 2. Lower die mechanism; 21. Lower template; 22. Lower die base; 23. Lower pad; 24. Lower support plate; 3. Punch; 31. Punch pad; 32. Punch clamping plate; 4. Wedge mechanism; 41. Drive block; 42. Guide mounting seat; 421. Second through hole; 43. Wedge mounting seat; 431. Limiting groove; 44. Limiting block; 45. Return hook; 46. Lubrication plate; 47. First nitrogen spring; 5. First through hole; 6. First blanking hole; 7. Second blanking hole; 8. Mounting groove; 9. Cutting insert; 10. Second nitrogen spring; 13. Product. Detailed Implementation

[0031] 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 embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0032] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0033] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0034] In the description of the embodiments of this utility model, it should be noted that the terms "upper" and "inner" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship in which the utility model product is usually placed when in use. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0035] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0036] Example 1:

[0037] Please see Figure 1-8 This utility model provides a stamping device with a punching wedge mechanism, including: an upper die mechanism 1, a lower die mechanism 2, a punch 3 and a wedge mechanism 4. The lower die mechanism 2 is disposed below the upper die mechanism 1. Two wedge mechanisms 4 are disposed on the upper die mechanism 1. The two wedge mechanisms 4 are arranged symmetrically. The punch 3 is connected to the wedge mechanism 4.

[0038] The upper mold mechanism 1 includes an upper mold base 11 and a pressure plate 12. The pressure plate 12 is connected below the upper mold base 11, and a first through hole 5 through which the wedge mechanism 4 passes is provided on the pressure plate 12.

[0039] The wedge mechanism 4 includes a drive block 41, a guide mounting base 42, a wedge mounting base 43, a limiting block 44, and a return hook 45. The guide mounting base 42 is connected to the pressure plate 12 and has a second through hole 421. The wedge mounting base 43 is movably connected to the second through hole 421 and has a limiting groove 431. One end of the limiting block 44 is slidably connected to the limiting groove, and the other end of the limiting block 44 is connected to the guide mounting base 42. The top end of the wedge mounting base 43 is connected to the drive block 41, and the drive block 41 is connected to the upper mold base 11. Return hooks 45 are respectively provided on both sides of the drive block 41, and the bottom end of the return hook 45 is connected to the wedge mounting base 43.

[0040] Specifically, a punch pad 31 is connected to the wedge mounting base 43, a punch clamp 32 is connected to the punch pad 31, and the punch 3 is connected to the punch clamp 32. This makes the punch connection more secure.

[0041] Specifically, the lower mold mechanism 2 includes a lower template 21, a lower mold base 22, lower pads 23, and a lower support plate 24. Multiple lower pads 23 are connected to the lower support plate 24. The lower mold base 22 is connected to the top of the lower pads 23. The lower template 21 is connected to the lower mold base 22. A first blanking hole 6 is provided on the lower template 21. A second blanking hole 7 is provided below the first blanking hole 6. The second blanking hole 7 is provided on the lower mold base 22.

[0042] Specifically, the lower template 21 is provided with a mounting groove 8, and a cutting edge insert 9 is provided in the mounting groove 8, with the first blanking hole 6 penetrating through the cutting edge insert 9. The cutting edge insert can improve the quality of punching.

[0043] Specifically, a plurality of second nitrogen springs 10 are provided between the upper mold base 11 and the pressure plate 12.

[0044] Working principle: The lubrication plate is installed on the drive block, which is installed on the upper die holder. The return hook, punch pad, and punch are installed on the wedge mounting base. The limit block and the first nitrogen spring are installed on the guide mounting base. The upper die holder, the second nitrogen spring, and other accessories are assembled using screws and pins to complete the upper die installation. During operation, when the worktable on the punch press moves downwards, the pressure plate begins to contact the product 13. The pressure plate engages with the lower die plate to first press the product. During the gradual movement, the punch moves upwards at the angle set by the guide mounting base, contacting the drive block. Under the action of the limit block, the pressure plate reaches its set height. The punch completes its mission, punching away the scrap area on product 13. The scrap is then discharged from the mold along the first and second discharge holes. The limit block restricts the punch's stroke, ensuring the punch's feed rate into the product and improving punching quality. When the pressure plate returns to its original position, it leaves the product. Under the action of the second nitrogen spring, the punch and wedge mount move downwards towards the guide mount under their own weight. The second nitrogen spring, under its own force, causes the pressure plate to float out of the punch, allowing the punch to completely exit the product. The entire process ensures that the hole size and position meet assembly requirements, improving the product's processing quality.

[0045] Example 2:

[0046] See Figure 1-8 The figure shows a stamping device with a punching wedge mechanism provided by Embodiment 2 of this utility model. Based on the above embodiments, this embodiment further improves upon the following technical solution: a lubrication plate 46 is provided between the driving block 41 and the wedge mounting base 43. The lubrication plate ensures that the nailing components of the wedge mechanism slide at a certain angle, thereby improving the punching quality.

[0047] Example 3:

[0048] See Figure 1-8 The figure shows a stamping device with a punching wedge mechanism provided by Embodiment 3 of this utility model. Based on the above embodiments, this embodiment further improves upon the following technical solution: First nitrogen springs 47 are respectively provided on both sides of the wedge mounting base 43. One end of the first nitrogen spring 47 is connected to the wedge mounting base 43, and the other end of the first nitrogen spring 47 is connected to the guide mounting base 42. The first nitrogen springs serve as a buffer.

[0049] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A stamping device with a punching wedge mechanism, characterized in that... It includes: an upper die mechanism, a lower die mechanism, a punch and a wedge mechanism. The lower die mechanism is located below the upper die mechanism. The upper die mechanism is provided with two wedge mechanisms, which are arranged symmetrically. The punch is connected to the wedge mechanisms. The upper mold mechanism includes an upper mold base and a pressure plate. The pressure plate is connected below the upper mold base and has a first through hole through which the wedge mechanism passes. The wedge mechanism includes a drive block, a guide mounting seat, a wedge mounting seat, a limiting block, and a return hook. The guide mounting seat is connected to the pressure plate and has a second through hole. The wedge mounting seat is movably connected within the second through hole and has a limiting groove. One end of the limiting block is slidably connected within the limiting groove, and the other end of the limiting block is connected to the guide mounting seat. The top end of the wedge mounting seat is connected to the drive block, which is connected to the upper mold base. Return hooks are provided on both sides of the drive block, and the bottom end of each return hook is connected to the wedge mounting seat.

2. A stamping device with a punching wedge mechanism according to claim 1, characterized in that... A lubrication plate is provided between the drive block and the wedge mounting base.

3. A stamping device with a punching wedge mechanism according to claim 1, characterized in that... A punch pad is connected to the wedge mounting base, a punch clamp is connected to the punch pad, and the punch is connected to the punch clamp.

4. A stamping device with a punching wedge mechanism according to claim 1, characterized in that... A first nitrogen spring is provided on each side of the wedge mounting base. One end of the first nitrogen spring is connected to the wedge mounting base, and the other end of the first nitrogen spring is connected to the guide mounting base.

5. A stamping device with a punching wedge mechanism according to claim 1, characterized in that... The lower mold mechanism includes a lower template, a lower mold base, lower pads, and a lower support plate. Multiple lower pads are connected to the lower support plate. The lower mold base is connected to the top of the lower pads. The lower template is connected to the lower mold base. A first blanking hole is provided on the lower template. A second blanking hole is provided below the first blanking hole. The second blanking hole is provided on the lower mold base.

6. A stamping device with a punching wedge mechanism according to claim 5, characterized in that... The lower template is provided with an installation groove, and a cutting edge insert is provided in the installation groove. The first material discharge hole passes through the cutting edge insert.

7. A stamping device with a punching wedge mechanism according to claim 1, characterized in that... Several second nitrogen springs are provided between the upper mold base and the pressure plate.

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