Forming, trimming and flanging integrated die
By designing an integrated mold for trimming and flanging, and using upper and lower mold sections and nitrogen spring limit blocks, the trimming and flanging processes are combined, solving the problem of high mold costs in traditional processes, improving production efficiency and reducing costs.
Patent Information
- Application Number
- CN202423236945.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-27
- Publication Date
- 2025-12-16
- Estimated Expiration
- 2034-12-27
AI Technical Summary
Traditional automotive heat insulation component stamping production processes require four steps and at least two sets of molds, resulting in high stamping and mold costs. Process simplification and further optimization of mold costs have not yet been achieved.
Design a mold that integrates forming, trimming, and flanging. It uses upper and lower molds combined with nitrogen springs and limiting blocks to achieve the integration of trimming and flanging processes. The forming, trimming, and flanging work is completed through the cooperation of elastic components, reducing the number of molds and processes.
By reducing four processes to two processes and one set of molds, the production cycle is improved, labor costs are saved, mold costs are reduced, and the problem of insufficient machine tool space during mold production is solved.
Smart Images
Figure CN223670012U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to a technical field of automobile die, especially relates to a die for forming, trimming and flanging integration. BACKGROUND
[0002] In the stamping production process of the automobile heat insulation part, the traditional stamping process is forming-trimming-flanging-cuffing, four processes in all, and at present, at least two sets of dies are needed, and the stamping cost and die cost are high. The applicant has developed a die that combines trimming and flanging processes through continuous test and verification, but there is still room for further optimization and improvement from the aspects of process simplification and die cost saving. SUMMARY
[0003] The utility model discloses a die for forming, trimming and flanging integration to solve the above problems.
[0004] In order to realize the above-mentioned purpose, the utility model adopts the technical scheme as follows: a die for forming, trimming and flanging integration, comprising mutually matched upper die part and lower die part, the upper die part includes upper die seat, the upper trimming insert fixed to the upper die seat and the upper material presser for forming material, the third elastic member fixed to the upper die seat is arranged below the upper material presser, wherein the upper material presser is used as the flanging punch in addition to being used for forming material pressing;
[0005] The lower die part includes lower die seat, trimming and flanging insert fixed to the lower die seat and forming top piece for forming, the first elastic member fixed to the lower die seat and the lower top piece for part positioning are arranged below the forming top piece, and the second elastic member fixed to the lower die seat is arranged below the lower top piece.
[0006] As a preferred technical scheme, the elastic force of the first elastic member, the second elastic member and the third elastic member all needs to be greater than the force required for part forming, in the forming, the first elastic member, the second elastic member and the third elastic member are all not compressed, and are used as the upper and lower die surfaces of forming, thereby ensuring that the first step is completed first. In addition, the elastic force of the second elastic member is greater than the sum of the elastic force of the third elastic member above and the gravity of the upper material presser, so that the first elastic member of the lower top piece is not compressed and is in a static supporting state, and the second step trimming work can be completed.
[0007] As a preferred technical scheme, the first elastic member, the second elastic member and the third elastic member are all nitrogen gas springs.
[0008] As a preferred technical scheme, the limiting block A for limiting the upper die seat is further arranged.
[0009] As a preferred technical scheme, the limiting block B for limiting the forming top piece is further arranged.
[0010] As a preferred technical scheme, the limiting block C for limiting the lower top piece is further arranged.
[0011] Compared with the prior art, the mold has the advantages that four processes and two sets of molds are reduced to two processes and one set of mold, production rhythm is improved, labor cost is saved, the profit of the stamped part is greatly improved, the situation that the machine tool space is not enough for use during mold production is solved, and the mold cost is reduced. BRIEF DESCRIPTION OF DRAWINGS
[0012] Figure 1 is a schematic view of a lower mold part of the mold of the utility model;
[0013] Figure 2 is a schematic view of a lower mold assembly of the mold of the utility model;
[0014] Figure 3 is a schematic view of an assembly relationship of the lower mold assembly of the mold of the utility model;
[0015] Figure 4 is a schematic view of a working part of an upper mold of the mold of the utility model;
[0016] Figure 5 is a schematic view of an upper mold assembly of the mold of the utility model;
[0017] Figure 6 is a schematic view of an assembly relationship of the upper mold assembly of the mold of the utility model;
[0018] Figure 7 is a schematic view of a molding process of the mold of the utility model;
[0019] Figure 8 is a schematic view of a trimming process of the mold of the utility model;
[0020] Figure 9 is a schematic view of a flanging process of the mold of the utility model;
[0021] Figure 10 is a schematic view of the mold of the utility model after the flanging process is completed;
[0022] In the figure: 1, a molding top piece; 2, a trimming and flanging insert block; 3, a lower top piece; 4, a lower mold base; 5, a nitrogen spring A; 6, a nitrogen spring B; 7, an upper material pressing device; 8, an upper trimming insert block; 9, a nitrogen spring C; 10, an upper mold base; 11, a limiting block A; 12, a limiting block B; 13, a limiting block C. DETAILED DESCRIPTION
[0023] The utility model will be further described in combination with examples below. EXAMPLE
[0024] A mold for forming, trimming and flanging integration, comprising a cooperating upper mold part and lower mold part, wherein:
[0025] The structure of the upper mold part is shown in Figure 4 , Figure 5 and Figure 6 , comprising an upper mold base 10, an upper trimming insert 8 fixed to the upper mold base 10, and an upper pressure material 7 for forming pressure material, a nitrogen gas spring C9 fixed to the upper mold base 10 is arranged below the upper pressure material 7; it should be noted that the upper trimming insert 8 of the upper mold part is only used for trimming, corresponding to the outer side of the trimming and flanging insert 2 of the lower mold; wherein the closing diagram of the upper pressure material 7 and the upper trimming insert 8 is shown in Figure 4 ;
[0026] The structure of the lower mold part is shown in Figure 1 , Figure 2 and Figure 3 , comprising a lower mold base 4, a trimming and flanging insert 2 fixed to the lower mold base 4, and a forming top piece 1 for forming, a nitrogen gas spring A5 fixed to the lower mold base 4 and a lower top piece 3 for part positioning are arranged below the forming top piece 1, a nitrogen gas spring B6 fixed to the lower mold base 4 is arranged below the lower top piece 3; wherein the inner side of the trimming and flanging insert 2 is a flanging concave die, and the outer side is a trimming convex die, the closing diagram of the forming top piece 1, the trimming and flanging insert 2 and the lower top piece 3 is shown in Figure 1 ,
[0027] As shown in Figure 7 , when the mold is opened, the forming top piece 1 is ejected under the action of the nitrogen gas spring A5, the lower top piece 3 is ejected under the action of the nitrogen gas spring B6, the forming top piece 1, the lower top piece 3 and the trimming and flanging insert 2 are flush, forming the initial lower forming surface, for the first step of forming the part; the upper mold upper pressure material 7 is ejected under the action of the nitrogen gas spring 9, flush with the upper flanging insert 8; forming the upper surface required for the later forming;
[0028] As shown in Figure 8 , when the mold is lowered, under the action of the nitrogen gas spring A5, the nitrogen gas spring B6 and the nitrogen gas spring C9, the forming is completed, as the mold is lowered, as shown in Figure 9 , the nitrogen gas spring C9 is compressed and reaches the limit block A11, the upper trimming insert 8 is above the surface, at this time, the upper mold as a fixed part continues to descend, the nitrogen gas spring A5 is compressed, the forming top piece 1 is lowered, and the trimming work is completed;
[0029] As shown in Figure 9As shown, the mold continues to descend, the upper mold continues to descend as a fixed component, the nitrogen spring B6 is compressed, the lower top piece 3 descends, at this time, the upper material presser 7 enters the inside of the trimming and flanging insert 2, the flanging work is completed, and the trimming work is completed Figure 10 As shown, the mold continues to descend, the upper mold continues to descend as a fixed component, the nitrogen spring B6 is compressed, the lower top piece 3 descends, at this time, the upper material presser 7 enters the inside of the trimming and flanging insert 2, the flanging work is completed, and the trimming work is completed
[0030] The elastic force of the nitrogen spring B6 is much greater than the sum of the elastic force of the nitrogen spring C9 above and the gravity of the upper material presser 7; during the mold working process, the limiting blocks A11, B12 and C13 play a limiting role, which can prevent the nitrogen cylinder from being damaged due to overpressure during the production process. During the process, the profile of the upper trimming insert 8 and the trimming and flanging insert 2 is not a plane, and needs to be consistent with the forming profile of the part.
[0031] The mold well reduces two sets of molds for four processes into one set of molds for two processes, improves the production rhythm, saves the labor cost, greatly improves the profit of the stamped part, solves the problem that the machine tool space is not enough for mold production, and reduces the mold cost.
[0032] The above only describes preferred embodiments of the utility model, and does not limit the utility model, and any modification, equivalent replacement and improvement within the spirit and principle of the utility model should be included in the protection scope of the utility model.
Claims
1. A die for integrated trimming and flanging of a formed part, comprising a cooperating upper die portion and a lower die portion, characterized in that, The upper die part comprises an upper die base, an upper trimming insert fixed to the upper die base, and an upper material former for forming a material, and a third elastic member fixed to the upper die base is arranged below the upper material former; The lower die part comprises a lower die base, a trimming and flanging insert fixed to the lower die base, and a forming top member for forming, a first elastic member fixed to the lower die base and a lower top member for part positioning are arranged below the forming top member, and a second elastic member fixed to the lower die base is arranged below the lower top member.
2. The die for integrated trimming and flanging according to claim 1, wherein The elastic force of the second elastic member is greater than the sum of the elastic force of the third elastic member above and the gravity of the upper material former.
3. The die for integrated trimming and flanging according to claim 1, wherein The first, second and third elastic members are nitrogen gas springs.
4. The die for integrated trimming and flanging according to claim 1, wherein A limiting block A for limiting the upper die base is further arranged.
5. The die for integrated trimming and flanging according to claim 1, wherein A limiting block B for limiting the forming top member is further arranged.
6. The die for integrated trimming and flanging of claim 1, wherein A limiting block C for limiting the lower top member is further arranged.