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A kind of mold and method for manufacturing ultra-thin-walled tiny cylindrical parts

A technology of ultra-thin wall and cylindrical parts, which is applied in the field of molds for manufacturing cylindrical parts, can solve the problems of inconvenient loading and unloading, unreliable fastening, and low service life of molds, and achieve material saving, surface quality improvement, and high extrusion speed effect

Active Publication Date: 2016-03-09
HARBIN INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to solve the problems of inconvenient loading and unloading, unreliable fastening, and low service life of the existing mold punch for manufacturing ultra-thin-walled micro-cylindrical parts

Method used

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  • A kind of mold and method for manufacturing ultra-thin-walled tiny cylindrical parts
  • A kind of mold and method for manufacturing ultra-thin-walled tiny cylindrical parts
  • A kind of mold and method for manufacturing ultra-thin-walled tiny cylindrical parts

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specific Embodiment approach 1

[0018] Specific implementation mode one: combine figure 1 and figure 2 Describe this embodiment, this embodiment includes the mold that manufactures ultra-thin-wall tiny cylindrical parts, and mold includes upper mold base 1, lower mold base 2, punch fixed plate 3, upper punch 4, die fixed plate 5, movable Die 6, lower punch 7, punch backing plate 8, heating ring 9, die backing plate 12, multiple guide sleeves 10 and multiple guide posts 11, the upper die base 1 and the lower die base 2 are parallel up and down Setting, a plurality of guide sleeves 10 are perforated around the upper die base 1 along the thickness direction of the upper die base 1, and one end of each guide post 11 is set on the bottom end surface of the lower die base 2, and each guide post 11 The other end can be slidably arranged in the corresponding guide sleeve 10, the upper end of the upper punch 4 is connected with the punch backing plate 8, the punch backing plate 8 is fixed in the punch fixing plate ...

specific Embodiment approach 2

[0025] Specific implementation mode two: combination image 3 , Figure 4 To illustrate this embodiment, a working belt 4-1 extends from the bottom of the upper punch 4 along the direction of the lower die base 2, and the length of the working belt 4-1 is 0.8-1.5mm. The working belt 4-1 of the punch is a section in the punch that is vertical to the working end face of the die and is used to ensure the shape, size and surface quality of the extruded product. The working belt length h is one of the important basic parameters in punch design. If h is too long, the friction will increase, causing the two to bond, and at the same time, the extrusion force will increase, resulting in defects such as thorns, pockmarks, and washboard-shaped waves of the product. When h is too short, the size of the product is difficult to stabilize, and it is easy to crush, ovality and other waste products. At the same time, the mold is prone to wear and tear, and its service life is greatly reduced...

specific Embodiment approach 3

[0026] Specific implementation mode three: combination figure 1 The present embodiment will be described. The punch fixing plate 3 of the present embodiment is fixed to the bottom end surface of the upper die base 1 by fastening screws. This setting is for the convenience of connection. Other compositions and connections are the same as those in the second embodiment.

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Abstract

The invention discloses a die and a method for manufacturing an ultrathin-wall small cylinder part, relates to a die and a method for an ultrathin-wall small cylinder part and aims at solving the problems of low processing efficiency and high rejection rate in the current processing technology. The die for manufacturing the ultrathin-wall small cylinder part comprises an upper die base, a lower die base, a punch fixing plate, an upper punch, a female die fixing plate, a movable female die, a lower punch, a male die base plate, a heating ring, a female die base plate, a plurality of guide sleeves and a plurality of guide posts. A preparation method of the die comprises the following steps: a step I of putting a processed blank which is calculated through a same volume principle into a cavity of the movable female die, and heating the die and the blank to a warm extrusion temperature needed for the blank by the heating ring. The die and the method for the ultrathin-wall small cylinder part are applicable to manufacturing of cylinder parts.

Description

technical field [0001] The invention relates to a mold and a method for manufacturing a cylindrical part, in particular to a mold and a method for manufacturing an ultra-thin-wall tiny cylindrical part. Background technique [0002] The ultra-thin-walled tiny cylinder is a commonly used support member or container member in MEMS. Its structural feature is that the thickness of the side wall is very small, and the thickness of the bottom wall is several times larger than that of the side wall. At present, such components mainly adopt ultra-precision cutting and other manufacturing processes, which have low processing efficiency and high scrap rate, which are far from meeting the needs of practical applications. Die structure design The quality of the reverse extrusion part of the shell is directly related to the design quality of the reverse extrusion die, and a reasonable mold structure type is one of the key technologies for manufacturing qualified reverse extrusion parts. ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B21C25/02B21C23/20
Inventor 王春举徐杰单德彬郭斌
Owner HARBIN INST OF TECH