Stamping die for machining limiting piece

Abstract

The utility model relates to the technical field of stamping dies, and discloses a stamping die for machining a limiting piece, which comprises a lower bottom plate and an upper bottom plate, a lower die is mounted on one side of the lower bottom plate, an upper die is mounted on one side of the upper bottom plate, a cutting punch for cutting off a section bar is fixedly mounted on one side of the upper die, and the cutting punch is fixedly mounted on the other side of the upper die. A forming male die mounted on the upper die is arranged on one side of the cutting punch; by arranging the positioning assemblies and the driving assemblies, the driving assemblies can be started by the upper bottom plate when continuous punching is conducted on a profile every time punching is conducted, the two driving assemblies can push the positioning assemblies on the two sides after being started, in this way, during punching, the two sides of the profile can be pushed, and the profile is clamped and limited; by means of the arrangement, independent clamping and limiting can be carried out on the continuously-punched section bar in each time of punching, and each time of clamping and limiting can be automated without manual operation.

Description

Technical Field

[0001] The utility model relates to the technical field of stamping dies, in particular to a stamping die for processing limit pieces. Background Technique

[0002] At present, a stamping die is a special process equipment for processing materials (metal or non-metal) into parts (or semi-finished products) in cold stamping processing, also known as a cold stamping die or a cold punching die. Stamping processing is a pressure processing method in which, at room temperature, a die installed on a press applies pressure to a material to cause separation or plastic deformation, so as to obtain the required parts. Since stamping dies are widely used, it is necessary to optimize the production of stamping dies.

[0003] For example, a continuous stamping die for stamping metal sheets disclosed in the Chinese utility model patent with the publication number of CN214866620U. In the above-mentioned prior art, although it can effectively buffer the process of stamping metal sheets, thereby reducing the wear of the device during stamping, when the stamping die performs continuous stamping, the stamping vibration and the bending deformation of the profile after being extruded will cause a certain offset of the subsequent connected profile, and the limiting devices on the die are basically cylindrical and fixed. When the profile is completely limited without gaps, a small part of the edge of the softer profile will be extruded and deformed, such as aluminum profiles, etc. When the gap for limiting the profile is large, the profile offset cannot make the profile return to its original position, affecting the stamping quality. Therefore, it is necessary to design a stamping die that can automatically correct the stamping position of the profile. Content of the Utility Model

[0004] To solve the technical problem that the limiting device on the existing die is fixed, which will cause the profile to be extruded and deformed or unable to completely limit the profile, the utility model provides a stamping die for processing limit pieces.

[0005] The utility model is realized by the following technical solutions: A stamping die for processing a limit piece, including a lower bottom plate and an upper bottom plate. A lower die is installed on one side of the lower bottom plate, and an upper die is installed on one side of the upper bottom plate. A cutting punch for cutting off profiles is fixedly installed on one side of the upper die. A forming punch installed on the upper die is arranged on one side of the cutting punch. A plurality of guide posts are arranged between the upper die and the lower die. Positioning components for correcting and positioning the profiles during stamping are arranged on both sides of the lower die. Driving components for driving the positioning components to perform positioning are arranged on one side of each of the two positioning components. Sliding grooves are formed on both sides of the lower die. The positioning component includes a sliding plate slidably installed inside the sliding groove and provided with an extrusion groove, a positioning plate slidably arranged inside the extrusion groove, and a plurality of push springs fixedly installed inside the extrusion groove. One ends of the plurality of push springs are fixedly installed with the positioning plate.

[0006] Through the above technical solutions, when the upper bottom plate drives the upper die to perform stamping, the descending upper bottom plate will cause the driving component to drive the positioning component, so that the positioning component cooperates with the descending upper bottom plate to clamp and limit the profile.

[0007] As a further improvement of the above solution, limiting grooves are formed on both sides of the inner walls of the two sliding grooves. A limiting block is slidably fitted inside each limiting groove. Each limiting block is fixedly installed on one side of the adjacent sliding plate.

[0008] Through the above technical solutions, the sliding sliding plate will be limited by the limiting block to prevent the movement of the sliding plate from generating an offset.

[0009] As a further improvement of the above solution, the driving component includes a threaded sleeve fixedly installed on one side of the sliding plate and a first threaded rod arranged inside the threaded sleeve and threadedly engaged with it. One end of the first threaded rod penetrates through the sliding groove and extends to the outside of the lower die.

[0010] Through the above technical solutions, when the first threaded rod rotates, the threaded sleeve will be pushed, so that the sliding plate will be pushed, thereby squeezing and limiting the profile.

[0011] As a further improvement of the above solution, a first bevel gear is fixedly installed on one end of the first threaded rod. A second bevel gear is threadedly connected to one side of the first bevel gear. A second threaded rod is fixedly installed on one side of the second bevel gear. One end of the second threaded rod threadedly penetrates through the upper bottom plate.

[0012] Through the above technical solutions, when the upper bottom plate descends, the second threaded rod will rotate, so that the first threaded rod rotates.

[0013] As a further improvement of the above solution, a limiting block is fixedly sleeved on the outer surface of the second threaded rod, and a support plate is rotatably sleeved on the circumferential surface of the limiting block.

[0014] Through the above technical solution, the limiting block and the support plate can cooperate to support the second threaded rod.

[0015] As a further improvement of the above solution, the support plate is arranged in an "L" shape.

[0016] Through the above technical solution, the "L"-shaped arrangement of the support plate can avoid affecting the first bevel gear and the second bevel gear.

[0017] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0018] By setting the positioning component and the driving component, when continuously stamping the profile, each time stamping is performed, the driving component will be started by the upper bottom plate. After the two driving components are started, they will push the positioning components on both sides, so that when stamping, the profile will be pushed on both sides to clamp and limit the profile. Such a setting can not only perform separate clamping and limiting for each stamping of the continuously stamped profile, but also make each clamping and limiting automatic without manual operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 is a three-dimensional structural schematic diagram of the present utility model;

[0020] Figure 2 is a structural schematic diagram of the present utility model with a positioning component and a driving component;

[0021] Figure 3 is a sectional structural schematic diagram of the positioning component of the present utility model.

[0022] MAIN SYMBOL DESCRIPTION:

[0023] 1. Lower bottom plate; 2. Upper bottom plate; 3. Lower die; 4. Upper die; 5. Guide post; 601. Sliding plate; 602. Positioning plate; 603. Push spring; 701. Threaded sleeve; 702. First threaded rod; 8. Sliding groove; 9. Limiting block; 10. First bevel gear; 11. Second bevel gear; 12. Second threaded rod; 13. Limiting block; 14. Support plate. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0024] Next, in combination with the drawings and specific embodiments, the present utility model will be further described. It should be noted that, on the premise of no conflict, the following-described embodiments or technical features can be arbitrarily combined with each other to form new embodiments.

[0025] Please refer to Figures 1 - 3, A stamping die for processing a limiting piece in this embodiment includes a lower bottom plate 1 and an upper bottom plate 2. A lower die 3 is installed on one side of the lower bottom plate 1, and an upper die 4 is installed on one side of the upper bottom plate 2. A cutting punch for truncating the profile is fixedly installed on one side of the upper die 4. A forming punch installed on the upper die 4 is provided on one side of the cutting punch. A plurality of guide posts 5 are provided between the upper die 4 and the lower die 3. Positioning components for correcting and positioning the profile during stamping are provided on both sides of the lower die 3. Driving components for driving the positioning components to perform positioning are provided on one side of each of the two positioning components. Sliding grooves 8 are opened on both sides of the lower die 3. The positioning component includes a sliding plate 601 slidably installed inside the sliding groove 8 and provided with an extrusion groove, a positioning plate 602 slidably arranged inside the extrusion groove, and a plurality of pushing springs 603 fixedly installed inside the extrusion groove. One end of each of the plurality of pushing springs 603 is fixedly installed with the positioning plate 602. Limiting grooves are opened on both sides of the inner walls of the two sliding grooves 8. A limiting block 9 is slidably engaged inside each limiting groove. Each limiting block 9 is fixedly installed with one side of the adjacent sliding plate 601. When the upper bottom plate 2 drives the upper die 4 to perform stamping, the descending upper bottom plate 2 will cause the driving component to drive the positioning component, so that the positioning component cooperates with the descending upper bottom plate 2 to clamp and limit the profile.

[0026] Combined with Figure 1 and Figure 2 , the driving component includes a threaded sleeve 701 fixedly installed on one side of the sliding plate 601 and a first threaded rod 702 arranged inside the threaded sleeve 701 and threadedly engaged with it. One end of the first threaded rod 702 penetrates through the sliding groove 8 and extends to the outside of the lower die 3. A first bevel gear 10 is fixedly installed at one end of the first threaded rod 702. A second bevel gear 11 is threadedly connected to one side of the first bevel gear 10. A second threaded rod 12 is fixedly installed on one side of the second bevel gear 11. One end of the second threaded rod 12 threadedly penetrates through the upper bottom plate 2. A limiting block 13 is fixedly sleeved on the outer surface of the second threaded rod 12. A support plate 14 is rotatably sleeved on the circumferential surface of the limiting block 13. The support plate 14 is arranged in an "L" shape. When the first threaded rod 702 rotates, the threaded sleeve 701 will be pushed, so that the sliding plate 601 will be pushed, thereby squeezing and limiting the profile. When the upper bottom plate 2 descends, the second threaded rod 12 will rotate, so that the first threaded rod 702 rotates.

[0027] In the embodiment of the present application, the implementation principle of a stamping die for processing a limit piece is as follows: When continuous stamping is performed on a profile, when the upper base plate 2 drives the upper die 4 to press down, the upper base plate 2 will cause the second threaded rod 12 to rotate. After the second threaded rod 12 rotates, it will cause the second bevel gear 11 to drive the first bevel gear 10 to rotate, thereby causing the first threaded rod 702 to rotate. The first threaded rod 702 is rotationally matched with the lower die 3, that is, the first threaded rod 702 can rotate but will not move. When the first threaded rod 702 rotates, it will push the threaded sleeve 701 fixedly installed on the sliding plate 601. When the threaded sleeve 701 is pushed, the sliding plate 601 will be pushed, so that the positioning plate 602 on the sliding plate 601 will push and limit the profile. In this way, the position deviation of the profile can be corrected. And after the upper die 4 presses down, the positioning plate 602 will retract into the sliding plate 601 until it is pushed out by the pushing spring 603 after the upper die 4 moves up. The two positioning plates 602 clamp and push the profile from both sides. Because the positioning plate 602 is relatively long, both sides of the profile can be evenly stressed, avoiding deformation caused by relatively small extrusion on the edges of the profile. And each stamping will re-correct the deviation of the profile. Therefore, the amount of deviation of the profile each time will only be very small, rather than increasing more and more. Such a setting can not only perform separate clamping and limiting on the continuously stamped profile for each stamping, but also make each clamping and limiting automated without manual operation.

[0028] The above-mentioned implementation manners are only the preferred implementation manners of the present invention, and cannot be used to limit the scope of protection of the present invention. Any non-substantial changes and substitutions made by those skilled in the art on the basis of the present invention belong to the scope of protection required by the present invention.

Claims

1. A stamping die for processing a limit plate, comprising a lower base plate (1) and an upper base plate (2), wherein a lower die (3) is installed on one side of the lower base plate (1), an upper die (4) is installed on one side of the upper base plate (2), a cutting punch for cutting a profile is fixedly installed on one side of the upper die (4), a forming convex die installed on the upper die (4) is provided on one side of the cutting punch, a plurality of guide pillars (5) are provided between the upper die (4) and the lower die (3), and the characteristics are as follows: Both sides of the lower mold (3) are provided with positioning components for correcting the position of the profile during stamping, and one side of the two positioning components is provided with a driving component for driving the positioning component to position. Both sides of the lower mold (3) are provided with sliding grooves (8), and the positioning components include a sliding plate (601) slidably installed in the sliding groove (8) and provided with an extrusion groove, a positioning plate (602) slidably arranged in the extrusion groove, and a plurality of push springs (603) fixedly installed in the extrusion groove, and one end of the plurality of push springs (603) is fixedly installed on the positioning plate (602).

2. A stamping die for processing a limiter according to claim 1, characterized in that: Limiting grooves are provided on both sides of the inner walls of the two sliding grooves (8), and a limiting block (9) is slidably matched inside each of the limiting grooves, and each of the limiting blocks (9) is fixedly installed on one side of the adjacent sliding plate (601).

3. A stamping die for processing a limiter according to claim 1, characterized in that: The driving assembly comprises a threaded sleeve (701) fixedly mounted on one side of the sliding plate (601) and a first threaded rod (702) arranged inside the threaded sleeve (701) and threadably matched therewith, one end of the first threaded rod (702) passing through the sliding groove (8) and extending to the outside of the lower mold (3).

4. A stamping die for processing a limiter according to claim 3, characterized in that: A first bevel gear (10) is fixedly mounted on one end of the first threaded rod (702), a second bevel gear (11) is threadedly connected to one side of the first bevel gear (10), a second threaded rod (12) is fixedly mounted on one side of the second bevel gear (11), and one end of the second threaded rod (12) is threadedly passed through the upper base plate (2).

5. A stamping die for processing a limiter according to claim 4, characterized in that: A limiting block (13) is fixedly sleeved on the outer surface of the second threaded rod (12), and a supporting plate (14) is rotatably sleeved on the circumferential surface of the limiting block (13).

6. A stamping die for processing a limiter according to claim 5, characterized in that: The support plate (14) is arranged in an "L" shape.

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