Fixture and positioning mechanism thereof

A positioning mechanism and fixture technology, applied in the direction of positioning devices, clamping devices, etc., can solve the problems of affecting position size, affecting positioning accuracy, inconsistent positioning hole size, etc., to improve adaptability, improve matching degree, The effect of improving positioning accuracy

Active Publication Date: 2016-10-12
GUANGDONG EVERWIN PRECISION TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the inconsistent size of the positioning holes for different workpieces, the traditional positioning mechanism cannot match the positioning holes well,

Method used

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  • Fixture and positioning mechanism thereof
  • Fixture and positioning mechanism thereof
  • Fixture and positioning mechanism thereof

Examples

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Example Embodiment

[0037] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and understandable, the specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings. In the following description, many specific details are explained in order to fully understand the present invention. However, the present invention can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without departing from the connotation of the present invention. Therefore, the present invention is not limited by the specific implementation disclosed below.

[0038] It should be noted that when an element is referred to as being "fixed to" another element, it can be directly on the other element or a central element may also exist. When an element is considered to be "connected" to another element, it can be directly connected to the ot...

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Abstract

The invention relates to a fixture and a positioning mechanism thereof. The fixture comprises a base, a first cylinder, a second cylinder, an intake pipe and an exhaust pipe; the positioning mechanism includes a positioning body, a first spring, a first positioning column and a second positioning column; a positioning groove is formed in the positioning body; the first spring coats the first positioning column; when a workpiece is positioned on a positioning plate of the fixture, the other end of the second positioning column is inserted through a positioning hole of the workpiece; and as the diameter of the other end of the second positioning column is gradually decreased in a direction far from the first positioning column, positioning holes with different sizes can be adapted to, the adaptability of the positioning mechanism is improved, and the matchability between the positioning mechanism and the positioning holes is improved. The side wall of the positioning hole of the workpiece is butted against the outer peripheral edge of the second positioning column; and when the pressure is applied to the workpiece by a pressure plate, the pressure is applied to the second positioning column by the workpiece to force the first spring, so that the first spring is compressed, and the distance between the workpiece and the positioning surface of the positioning plate is reduced.

Description

technical field [0001] The invention relates to the technical field of auxiliary tools for numerical control machine tools, in particular to a fixture and a positioning mechanism thereof. Background technique [0002] When using CNC (Computer number control) to process the casing or middle frame of electronic products (such as mobile phones, tablet computers, etc.), fixtures are usually used to clamp the workpiece to be processed on the fixture, and then use the CNC machine tool The cutting tool processes the workpiece. [0003] When the workpiece is clamped on the fixture, usually the positioning hole of the workpiece should cooperate with the positioning mechanism of the fixture. However, due to different workpieces, the size of the positioning holes is inconsistent, so that the traditional positioning mechanism cannot match the positioning holes well, which affects the position size (the distance between the workpiece and the positioning surface of the positioning plate)...

Claims

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Application Information

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IPC IPC(8): B23Q3/08F15B11/16F15B13/06F15B19/00
CPCB23Q3/08B23Q2703/04F15B11/16F15B13/06F15B19/005
Inventor 刘剑霞
Owner GUANGDONG EVERWIN PRECISION TECH
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