CN-122020945-A - Compression member and compression member design method

Abstract

The invention provides a pressing piece and a method for designing the pressing piece, wherein the load input to an input part is uniformly distributed on a workpiece. The pressing tool according to one aspect of the present invention includes an input portion, a pressing surface facing the input portion, a high-rigidity portion, and a low-rigidity portion. The high rigidity portion and the low rigidity portion are disposed between the pressing surface and the input portion. The rigidity of the high rigidity portion is higher than that of the low rigidity portion. The rigidity from each position of the pressing surface to the input portion is proportional to the cube of the distance from the input portion.

Inventors

• MASATAKA ITO

Assignees

• 丰田自动车株式会社

Dates

Publication Date

20260512

Application Date

20251107

Priority Date

20241112

Claims (5)

1. 1. A pressing tool, comprising: An input unit; A pressing surface facing the input unit; High rigidity part A low-rigidity portion of the plastic material, The high rigidity portion and the low rigidity portion are arranged between the pressing surface and the input portion, The rigidity of the high rigidity portion is higher than that of the low rigidity portion, The rigidity from each position of the pressing surface to the input portion is proportional to the cube of the distance from the input portion.
2. 2. A compression member according to claim 1, wherein, The high rigidity portion is made of the same material as the pressing surface, The low rigidity portion is a void.
3. 3. A compression member according to claim 1 or 2, wherein, The high rigidity portion is bridge-shaped in a cross section passing through the input portion and the pressing surface.
4. 4. A compression member according to claim 1 or 2, wherein, For fixing an electrode when a multi-layered electrode formed by stacking a plurality of electrodes is processed.
5. 5. A method for designing a pressing piece is characterized in that, The shape of the compression member is designed using a generative design, In the pressing part, the pressing part is provided with a pressing groove, Comprises an input part, a pressing surface facing the input part, a high rigidity part and a low rigidity part, The high rigidity portion and the low rigidity portion are arranged between the pressing surface and the input portion, The rigidity of the high rigidity portion is higher than that of the low rigidity portion, The rigidity from each position of the pressing surface to the input portion is proportional to the cube of the distance from the input portion.

Description

Compression member and compression member design method Technical Field The invention relates to a compressing piece and a compressing piece design method. Background With the development of manufacturing technologies such as three-dimensional printing, product development is increasingly complicated. A design method using computer-based automatic generation is called a generative design, and a design conforming to a specified constraint is proposed. The generated design contributes to the efficiency of the design flow and the deepening of structural research. Patent document 1 discloses a computer-aided generative design based on overall thickness control, which facilitates manufacturing and structural performance. Patent document 1 Japanese patent application laid-open No. 2023-525792 Disclosure of Invention The invention described in patent document 1 applies the minimum thickness requirement by controlling the overall thickness in the flow. In this way, efficient convergence of the shape can be achieved in the optimization flow, and by ensuring the minimum thickness of the part, the manufacturing of the part, the structural performance of the part, or both can be facilitated. However, the invention described in patent document 1 does not consider that the displacement relative to the load is kept constant. Therefore, it is impossible to design a pressing member that uniformly distributes load and fixes the work so as not to cause deflection or breakage of the work. In view of the above problems, the present invention provides a pressing tool and a method for designing the pressing tool, which uniformly distributes a load inputted to an input portion to a workpiece. The pressing tool according to one aspect of the present invention includes an input portion, a pressing surface facing the input portion, a high-rigidity portion, and a low-rigidity portion. The high rigidity portion and the low rigidity portion are disposed between the pressing surface and the input portion. The rigidity of the high rigidity portion is higher than that of the low rigidity portion. The rigidity from each position of the pressing surface to the input portion is proportional to the cube of the distance from the input portion. In the above-described pressing member, the high-rigidity portion may be made of the same material as the pressing surface, and the low-rigidity portion may be a void. In the above-described pressing member, the high rigidity portion may be bridge-shaped in a cross section through the input portion and the pressing surface. The pressing member may be used to fix an electrode when a multi-layered electrode in which a plurality of electrodes are stacked is processed. The method for designing a press according to an aspect of the present invention uses a generative design to design a shape of a press satisfying the following requirements. The pressing member includes an input portion, a pressing surface facing the input portion, a high-rigidity portion, and a low-rigidity portion. In the pressing member, the high-rigidity portion and the low-rigidity portion are disposed between the pressing surface and the input portion. In the pressing member, the rigidity of the high rigidity portion is higher than the rigidity of the low rigidity portion. In the pressing member, the rigidity from each position of the pressing surface to the input portion is proportional to the cube of the distance from the input portion. Effects of the invention According to the present invention, it is possible to provide a pressing tool and a method of designing the pressing tool, which uniformly distribute a load input to an input portion to a workpiece. Drawings Fig. 1 is a perspective view of a pressing tool according to embodiment 1. Fig. 2 is a cross-sectional view of the pressing tool according to embodiment 1. Fig. 3 is a flowchart of a method for designing a pressing tool according to embodiment 1. Fig. 4 is a cross-sectional view of a pressing tool according to embodiment 2. Fig. 5 is a cross-sectional view of a pressing tool according to a modification of embodiment 2. Detailed Description The present invention will be described below with reference to the embodiments of the invention, but the invention according to the present invention is not limited to the following embodiments. The structures described in the embodiments are not necessarily all necessary as means for solving the problems. The following description and drawings are omitted and simplified as appropriate for clarity of illustration. In the drawings, the same elements are denoted by the same reference numerals, and repetitive description thereof will be omitted as necessary. < Embodiment 1> Referring to fig. 1, a pressing tool 10 according to embodiment 1 will be described. Fig. 1 is a perspective view of a pressing tool 10 according to embodiment 1. The hold-down 10 serves to uniformly distribute and fix a load to the workpiece 20. The pressing tool 10 inclu