Micro-scale shaft cutting die

Abstract

The invention relates to a micro-scale shaft cutting die, and mainly aims to solve the technical problem that the planeness of end surfaces of the current micro-scale shaft is worse. The cutting die is characterized by comprising a base with a plurality of spaced lower-camber grooves thereon, wherein a demountable movable module is arranged above the base; upper-camber grooves corresponding to the lower-camber grooves in number are formed on the movable module; the upper-camber grooves and the lower-camber grooves are matched to form round clamping grooves; a through hole perpendicular to the upper-camber grooves and communicated with the lower-camber grooves is formed on the upper end surface of the movable module; and clamp springs are arranged in the round clamping grooves and have clamp feet placed in the through hole of the movable module and buckled with the through hole through lock catches. The invention has the benefits that the micro-scale shaft cut by the cutting die has a more even end surface than that directly punched by a pressing and cutting machine. The micro-scale shaft in the clamp spring can be subjected to more-sophisticated deep processing, so as to meet the dimension requirement of a user; and the production efficiency is greatly improved compared with that of the pressing and cutting machine, and the production cost of the single micro-scale shaft is effectively saved.

Description

Technical field [0001] The invention relates to a tooling fixture, more specifically to a cutting die for a micro shaft, which is mainly used in the production and processing field of a micro shaft or a precision shaft. Background technique [0002] Because of its high accuracy requirements such as verticality, surface roughness, roundness, runout, etc., the micro shaft is also called precision shaft. It is the main accessory of the micro vibration motor. The micro vibration motor is mainly used in mobile phones, toys, health massagers, etc. Industry: When the existing miniature shaft is produced, the stainless iron wire is basically punched to the required length by a punching machine, and then the outer diameter of the stainless iron wire is ground by a centerless grinder to make the diameter of the stainless iron wire meet the use Requirements: Using this processing method, products that require low plane accuracy at both ends of the micro-shaft can meet their use requirements...

AI Technical Summary

Problems solved by technology

[0003] In order to solve the existing technical problems such as the poor flatness of the end face of the micro-shaft; the present invention provides a cutting mold for the micro-shaft, through which the micro-shaft can not only improve the production efficiency of the micro-shaft, but also ensure that the micro-shaft is both end flatness

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