Punch forming method with movably adjusted bottom
By adopting the bottom activity adjustment method in stamping forming technology and gradually adjusting the bending opening of the material belt, the rebound problem of stainless steel or metal materials with high elasticity during stamping and forming in the existing technology is solved, and the product qualification rate and stamping forming are improved. Effect.
Patent Information
- Application Number
- CN202411480917.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-23
- Publication Date
- 2025-01-24
AI Technical Summary
When existing stamping forming technology deals with stainless steel or metal materials with high elasticity, it is easy to rebound at stamping, resulting in low product pass rate.
Adopting the stamping molding method adjustment at the bottom activity, by setting up a pre -bended bearer seat module, a proofed seat module with progressive reduction, and a vertical holder module with the final forming tolerance, the bend opening of the material band is gradually adjusted, so as to thus Realize the preparatory structure of predetermined type, gradually shrinking, and short -term pressure preservation.
It effectively avoids rebound at the stamping area, improves the product qualification rate, and ensures the stamping forming effect and product quality.
Smart Images
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Abstract
Description
Technical Field
[0001] The invention relates to precision machining technology, in particular to stamping forming, and specifically to a stamping forming method with bottom movable adjustment. Background Art
[0002] In stamping, vertical stamping is one of the common methods. However, due to material problems of some products, such as stainless steel or metal materials with high elasticity, the existing technology adopts one-time stamping, which is prone to rebound at the stamping point and low product qualification rate.
[0003] Therefore, it is necessary to provide a stamping forming method with bottom movable adjustment to solve the above problems. Summary of the invention
[0004] The purpose of the invention is to provide a stamping forming method with bottom movable adjustment.
[0005] The present invention achieves the above object through the following technical solutions:
[0006] A stamping method for bottom movable adjustment, the steps comprising:
[0007] 1) A bearing seat movable adjustment product stamping forming structure is provided, comprising a pre-bent bearing seat module, a plurality of progressively reduced bearing seat modules, and a vertical bearing seat module with a final forming matching tolerance, which are sequentially arranged; the pre-bent bearing seat module, the plurality of progressively reduced bearing seat modules, and the vertical bearing seat module respectively comprise a bottom bearing block, on which a circular arc groove is arranged, in which a pre-bent bearing seat, a plurality of progressively reduced bearing seats, and a vertical bearing seat with a final forming matching tolerance are rotatably arranged; the opening angle of the pre-bent bearing seat is 95-100°; the opening angle of the plurality of progressively reduced bearing seats docking the pre-bent bearing seat is 93-94°, and each stage is reduced by 0.5-1° to 90.5°;
[0008] 2) The material strip is conveyed to the pre-bent bearing seat module, and the first punch head performs punching and forming with a punching force A. The first punch head includes a first punching part matching the pre-bent bearing seat, and punches the material strip into a pre-bent shape, and the bending opening is 95-100°;
[0009] 3) After pre-bending, it is continuously conveyed to a number of progressively reduced bearing seat modules, and the opening is gradually reduced before forming to reduce the tolerance stamping in turn. Each level of pre-forming to reduce the tolerance stamping is performed by the second punching head with a B punching force to punch the corresponding progressively reduced bearing seat. The second punching head includes a second punching part that matches the reduced bearing seat, and the opening reduction stamping is performed in turn until the bending opening is 90.5-90.8°.
[0010] 4) After the opening is reduced and gradually bent, it is continued to be transported to the vertical bearing seat module with the final forming matching tolerance. The third punch punches the vertical bearing seat with the punching force of C corresponding to the final forming matching tolerance. The third punch head includes a third punch that matches the vertical bearing seat with the final forming matching tolerance. After the third punch head is punched into place, it is kept pressed for 3-5 seconds to finally obtain the vertical stamping part.
[0011] Furthermore, the end of the arc groove has a docking plane, and the docking plane is used as a downward pressing limit platform for the punch head.
[0012] Furthermore, the pre-bent bearing seat, the plurality of progressively reduced bearing seats, and the vertical bearing seat with a final formed matching tolerance are all rotatably arranged on the bottom bearing block via a rotating shaft.
[0013] Furthermore, the bottom bearing block is connected to a pre-bent bearing seat, a plurality of progressively reduced bearing seats, and a vertical bearing seat with a final forming matching tolerance through an elastic holding member.
[0014] Furthermore, a holding connection column for connecting an elastic holding member is provided on the pre-bent bearing seat, a plurality of progressively reduced bearing seats, and a vertical bearing seat with a final forming matching tolerance.
[0015] Furthermore, there is a pulling position difference between the pulling connection column and the rotating shaft, and the pulling connection column is used as a driving column similar to eccentric pulling.
[0016] Furthermore, the bottoms of the pre-bent bearing seat, the plurality of progressively reduced bearing seats, and the vertical bearing seat with a final formed matching tolerance are in an arc shape.
[0017] Furthermore, the pre-bent bearing seat, the plurality of progressively reduced bearing seats, and the vertical bearing seat with a final formed matching tolerance are cylindrical, and corresponding opening grooves are arranged in the bearing area.
[0018] Furthermore, the elastic holding member is composed of a tension spring.
[0019] Compared with the prior art, the present invention has a preparation structure with pre-forming, gradually shrinking opening, short-time pressure holding and final forming through the movable adjustment of the bottom, which ensures the vertical stamping forming effect and further ensures the product quality. BRIEF DESCRIPTION OF THE DRAWINGS
[0020] Figure 1 It is one of the structural schematic diagrams of the present invention.
[0021] Figure 2 This is the second structural schematic diagram of the present invention.
[0022] Figure 3 It is a schematic diagram of the arrangement of a drive column similar to eccentric pulling of the present invention. DETAILED DESCRIPTION
[0023] Example:
[0024] See also Figure 1-3 This embodiment shows a stamping method for bottom movable adjustment, the steps comprising:
[0025] 1) A support seat movable adjustment product stamping forming structure is provided, including a pre-bent support seat module 100, a plurality of progressively reduced support seat modules 200, and a vertical support seat module 300 with a final forming matching tolerance, which are arranged in sequence; the pre-bent support seat module 100, the plurality of progressively reduced support seat modules 200, and the vertical support seat module 300 respectively include a bottom support block 1, on which a circular arc groove 11 is arranged, in which a pre-bent support seat 101, a plurality of progressively reduced support seats 201, and a vertical support seat 301 with a final forming matching tolerance are rotatably arranged; the opening angle of the pre-bent support seat 101 is 95-100°; the opening angle of the plurality of progressively reduced support seats docking the pre-bent support seat 201 is 93-94°, and each stage is reduced by 0.5-1° to 90.5°;
[0026] 2) The material strip is conveyed to the pre-bent bearing seat module 100, and the first punch head 102 performs punching and forming with a punching force A. The first punch head 102 includes a first punching part 103 matching the pre-bent bearing seat 101, and punches the material strip into a pre-bent shape, and the bending opening is 95-100°;
[0027] 3) After pre-bending, it is continuously conveyed to a plurality of progressively reduced bearing seat modules 200, and the pre-molding reduction tolerance stamping with the opening gradually reduced is performed in sequence. For each level of pre-molding reduction tolerance stamping, the corresponding progressively reduced bearing seat 201 is stamped with a B stamping force by the second stamping head 202. The second stamping head 202 includes a second stamping portion 203 that matches the reduced bearing seat 201, and the opening reduction stamping is performed in sequence until the bending opening is 90.5-90.8°.
[0028] 4) After the opening is reduced and gradually bent, it is continued to be transported to the vertical support seat module 300 with the final forming matching tolerance. The third punch 302 punches the vertical support seat 301 with the final forming matching tolerance with a punching force of C. The third punch head 302 includes a third punch 303 that matches the vertical support seat 301 with the final forming matching tolerance. After the third punch head 302 is punched into place, it is kept pressed for 3-5 seconds to finally obtain a vertical stamping part.
[0029] in:
[0030] A punch pressure is 500-700NM.
[0031] A punch pressure: B punch pressure: C punch pressure is 1:1.3:1.6.
[0032] The arc groove end 11 has a butt joint plane 12, and the butt joint plane 12 is used as a pressing limit platform for the punch head.
[0033] The pre-bent bearing seat 101 , the plurality of progressively reduced bearing seats 201 , and the vertical bearing seat 301 with a final formed matching tolerance are all rotatably disposed on the bottom bearing block 1 via the rotating shaft 2 .
[0034] The bottom bearing block 1 is connected to a pre-bent bearing seat 101 , a plurality of progressively reduced bearing seats 201 , and a vertical bearing seat 301 with a final molding matching tolerance through an elastic holding member 3 .
[0035] The pre-bent bearing seat 101, the plurality of progressively reduced bearing seats 201, and the vertical bearing seat 310 with a final molding matching tolerance are provided with a holding connecting column 4 for connecting an elastic holding member.
[0036] There is a pulling position difference between the pulling connecting column 4 and the rotating shaft 2, and the pulling connecting column 4 is used as a driving column similar to eccentric pulling.
[0037] In one configuration, the bottom of the pre-bent support seat 101, the plurality of progressively reduced support seats 201, and the final vertical support seat 301 with matching tolerances are arc-shaped.
[0038] In another configuration, the pre-bent bearing seat 101, the plurality of progressively reduced bearing seats 201, and the vertical bearing seat 301 with a final molding matching tolerance are cylindrical, and corresponding opening grooves are configured in the bearing area.
[0039] The elastic holding member 3 is composed of a tension spring.
[0040] Compared with the prior art, the present invention has a preparation structure with pre-forming, gradually shrinking opening, short-time pressure holding and final forming through the movable adjustment of the bottom, which ensures the vertical stamping forming effect and further ensures the product quality.
[0041] The above are only some embodiments of the present invention. For those skilled in the art, several modifications and improvements can be made without departing from the creative concept of the present invention, which all belong to the protection scope of the present invention.
Claims
1. A stamping method for bottom movable adjustment, characterized in that: include: 1) A support seat movable adjustment product stamping forming structure is provided, including a pre-bent support seat module, a plurality of progressively reduced support seat modules, and a vertical support seat module with a final forming matching tolerance; The pre-bent bearing seat module, the plurality of progressively reduced bearing seat modules, and the vertical bearing seat module respectively include a bottom bearing block, the bottom bearing block is provided with an arc groove, and the pre-bent bearing seat, the plurality of progressively reduced bearing seats, and the vertical bearing seat with the final forming matching tolerance are rotatably arranged in the arc groove; the opening angle of the pre-bent bearing seat is 95-100°; the opening angle of the plurality of progressively reduced bearing seats docking the pre-bent bearing seat is 93-94°, and each stage is reduced by 0.5-1° to 90.5°; 2) The material strip is conveyed to the pre-bent bearing seat module, and the first punch head performs punching and forming with a punching force A. The first punch head includes a first punching part matching the pre-bent bearing seat, and punches the material strip into a pre-bent shape, and the bending opening is 95-100°; 3) After pre-bending, it is continuously conveyed to a number of progressively reduced bearing seat modules, and the opening is gradually reduced before forming to reduce the tolerance stamping in turn. Each level of pre-forming to reduce the tolerance stamping is performed by the second punching head with a B punching force to punch the corresponding progressively reduced bearing seat. The second punching head includes a second punching part that matches the reduced bearing seat, and the opening reduction stamping is performed in turn until the bending opening is 90.5-90.8°. 4) After the opening is reduced and gradually bent, it is continued to be transported to the vertical bearing seat module with the final forming matching tolerance. The third punch punches the vertical bearing seat with the punching force of C corresponding to the final forming matching tolerance. The third punch head includes a third punch that matches the vertical bearing seat with the final forming matching tolerance. After the third punch head is punched into place, it is kept pressed for 3-5 seconds to finally obtain the vertical stamping part.
2. A stamping method for bottom movable adjustment according to claim 1, characterized in that: The end of the arc groove is provided with a butt joint plane, and the butt joint plane is used as a pressing limit platform for the punch head.
3. A stamping method for bottom movable adjustment according to claim 2, characterized in that: The pre-bent bearing seat, a plurality of progressively reduced bearing seats, and a vertical bearing seat with a final formed matching tolerance are all rotatably arranged on the bottom bearing block via a rotating shaft.
4. A stamping method for bottom movable adjustment according to claim 3, characterized in that: The bottom bearing block is connected to a pre-bent bearing seat, a plurality of progressively reduced bearing seats, and a vertical bearing seat with a final forming matching tolerance through an elastic holding piece.
5. The stamping method for bottom movable adjustment according to claim 4, characterized in that: A pre-bent bearing seat, a plurality of progressively reduced bearing seats, and a vertical bearing seat with a final forming matching tolerance are provided with a holding connecting column for connecting an elastic holding member.
6. A stamping method for bottom movable adjustment according to claim 5, characterized in that: There is a pulling position difference between the pulling connection column and the rotating shaft, and the pulling connection column is used as a driving column similar to eccentric pulling.
7. A stamping method for bottom movable adjustment according to claim 6, characterized in that: The bottom of the pre-bent bearing seat, the plurality of progressively reduced bearing seats, and the vertical bearing seat with a final formed matching tolerance are in an arc shape.
8. The stamping method for bottom movable adjustment according to claim 7, characterized in that: The pre-bent bearing seat, the plurality of progressively reduced bearing seats, and the vertical bearing seat with the final formed matching tolerance are cylindrical, and corresponding opening grooves of the bearing area are arranged.
9. The stamping method for bottom movable adjustment according to claim 8, characterized in that: The elastic holding member is composed of a tension spring.