Press forming method of cup-shaped parts
A technology for stamping and forming parts, which is applied in the field of stamping and forming of cup-shaped parts, can solve the problems of few public examples and achieve the effect of simplifying the stamping and forming method
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
no. 1 approach
[0044] The press forming method of this embodiment includes a rough forming step and a finish forming step. The rough forming process has the first process and the second process described in Claim 1. The finishing step has the third step described in Claim 1.
[0045] figure 1 It is a schematic cross-sectional view of a mold for efficiently implementing the rough molding process. The mold (corresponding to the first mold) used in the rough forming process includes a first upper tool 2 , a second upper tool 3 , a third upper tool 4 , and a first lower tool 5 . The central axes of the tools 2 to 5 are coaxial with each other, and the tools 2 to 5 are arranged axisymmetrically with respect to the central axis L1. The first lower tool 5 has a knock out member 6 that is axisymmetric with respect to the central axis L1.
[0046] In addition, the tools 2 to 5 and the demolding member 6 are respectively connected to unillustrated driving mechanisms (for example, motors, hydraulic...
no. 2 approach
[0083] In the first embodiment, in Figure 3D Immediately after the thickening process (second process) is implemented, it is transferred to the finishing process (third process). In this embodiment, the thickening process is performed once between the second step and the third step. Figure 5A is a schematic cross-sectional view of a die (corresponding to a third die) used in this thickening process. In addition, descriptions of the same configurations as those of the first embodiment are appropriately omitted.
[0084] The mold used for the thickening process includes a fourth upper tool 12 , a fifth upper tool 13 , a sixth upper tool 14 and a second lower tool 15 . The central axes of the tools 12 to 15 are coaxial with each other, and the tools 12 to 15 are arranged axisymmetrically with respect to the central axis L3. The second lower tool 15 has a demolding part 16 that is axisymmetric with respect to the central axis L3.
[0085] The fourth upper jig 12 is formed in...
no. 3 approach
[0091] In the first embodiment, in Figure 3D Immediately after the thickening process (second process) is implemented, it is transferred to the finishing process (third process). In this embodiment, between the second step and the third step, a re-thickening treatment step in which thickening treatment is performed a plurality of times is implemented. Figure 6A It is a schematic cross-sectional view of a die used in the n-1th (where n is an integer greater than or equal to 2) re-thickening treatment step. Figure 6B is a schematic cross-sectional view of a die used in the n-th re-thickening process. which is, Figure 6A as well as Figure 6B It is a cross-sectional view of a die used in two consecutive arbitrary steps.
[0092] Figure 6A The mold shown (equivalent to the n+1th mold) includes the (3×n-2) upper tool 22, the (3×n-1) upper tool 23, the (3×n) upper tool 24 and the nth Lower tool 25. The central axes of the tools 22 to 25 are coaxial with each other, and t...
PUM
Login to View More Abstract
Description
Claims
Application Information
Login to View More