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a positioning device

A positioning device and positioning pin technology, which is applied in the field of mechanical processing, can solve the problems of complex structure, high cost, and inaccurate positioning accuracy of the positioning device, and achieve the effects of low labor intensity, good stability, and fast clamping

Active Publication Date: 2020-04-24
SHANTUI CONSTR MASCH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a positioning device, which is used to solve the problems of complex structure, high cost and inaccurate positioning accuracy in the prior art.

Method used

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Embodiment 1

[0038] In this embodiment, in order to solve the problems of high production cost and complex structure of the hydraulic expansion shaft in the prior art, it also solves the problem that the mechanical elastic mandrel can only be used for small-diameter positioning, and the positioning problem in the prior art The problem of inaccurate positioning accuracy of the tensioning block exists in the tensioning mechanism.

[0039] Such as Figure 2-4 As shown, this embodiment provides a positioning device, which includes a base 1 , a positioning structure 3 , a mandrel 4 , an end cover 6 , a tightening bolt 7 , a second elastic member 5 and a positioning member 8 . Wherein, the base 1 is provided with a trough-shaped piece 2, and the side wall of the trough-shaped piece 2 is provided with first holes 21 evenly distributed in the circumferential direction. Preferably, the above-mentioned trough-shaped piece 2 is circular, and the number of the first holes 21 is four , and uniformly a...

Embodiment 2

[0056] On the basis of the first embodiment above, the difference from the first embodiment above is:

[0057] In this embodiment, the grooved part 2 and the end cover 6 are integrally formed. After the mandrel 4, the tightening bolt 7, the grooved part 2 and the positioning structure 3 are installed, the second elastic part 5 is installed on the base 1 and the Between the mandrels 4, the base 1 is fixedly connected with the integrally formed part of the groove part 2 and the end cover 6, that is, the positioning device in this embodiment is formed.

Embodiment 3

[0059] On the basis of the first embodiment above, the difference from the first embodiment above is:

[0060] On the end cap 6 in this embodiment, a second hole is provided at the center of the end cap 6. The second hole in this embodiment is a through hole, which acts on the core through the through hole of the end cap 6 by means of an external structure. On the shaft 4 , the external structure provides power for the reciprocating movement of the mandrel 4 inside the channel member 2 . The above-mentioned external structure can drive the mandrel 4 to move through the protruding end of the air cylinder, or manually pass the tool through the above-mentioned through hole to push the mandrel 4 to reciprocate along the groove-shaped member 2, and at the same time use the above-mentioned tool to move the mandrel 4 in the groove. The position in the shape part 2 is fixed.

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Abstract

The invention relates to the technical field of machining, and discloses a positioning device. The positioning device comprises a slotted part, a positioning structure and a dabber. A first hole is formed in the lateral wall of the slotted part. The positioning structure is arranged in the first hole and can extend out or draw back along the first hole. The dabber is arranged in the slotted part and can push the positioning structure to move along the first hole. By means of the positioning device, the problems that a positioning device in the prior art is complex in structure, high in cost and inaccurate in positioning are solved.

Description

technical field [0001] The invention relates to the technical field of machining, in particular to a positioning device. Background technique [0002] In mechanical processing, the fastness and reliability of workpiece clamping and positioning directly affect processing efficiency and part quality. At present, the positioning of cylindrical parts is mainly carried out by using a three-jaw chuck or a fixed positioning mandrel through a tooling. In order to improve the clamping accuracy and efficiency of the parts processing process, hydraulic expansion shafts or mechanical elastic mandrels are mostly used, but the hydraulic expansion mandrels are expensive and need to be equipped with an independent hydraulic station; while the mechanical elastic shafts can only be used For positioning of small diameter holes. [0003] A positioning tensioning mechanism is provided in the prior art, such as figure 1 As shown, there is an ejector pin 2' slidingly connected to the inner hole...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B23Q3/00B25B11/00
CPCB23Q3/00B25B11/00
Inventor 黄亚军武永福翟浩刘静
Owner SHANTUI CONSTR MASCH CO LTD
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