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Gapless positioning device

A positioning device, no gap technology, applied in positioning devices, workpiece clamping devices, clamping and other directions, can solve problems affecting product processing accuracy, save time and effort in the clamping process, and achieve tightening and reliable self-locking. Effect

Pending Publication Date: 2020-05-22
SHENYANG AIRCRAFT CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In this way, there is a certain deviation between the actual positioning of the product and the theoretically correct position, which affects the processing accuracy of the product.

Method used

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Experimental program
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Embodiment Construction

[0011] The specific implementation manners of the present invention will be further described below in conjunction with the accompanying drawings and technical solutions.

[0012] It should be understood that the appended drawings are not to scale, presenting a suitably simplified representation of various features illustrative of the basic principles of the invention. The specific design features of the invention disclosed herein, including, for example, specific dimensions, orientations, locations and shapes will be determined in part by the particular intended application and use environment.

[0013] In the accompanying figures, the same or equivalent parts (elements) are designated with the same reference numerals.

[0014] In the description of the present invention, it should be noted that the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", " The orientations or positional relationships indicated by "vertical", "horizon...

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PUM

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Abstract

The invention belongs to the technical field of process equipment design and manufacturing technologies, and particularly relates to a gapless positioning device. The gapless positioning device comprises an expansion pin, an eccentric shaft, a check ring, a taper pin, a spring and an inner hexagon screw. Before a product is put in, the taper pin is located on the lowest cylindrical surface of theeccentric shaft, the expansion pin is in a loosened state; after a product is put in, the eccentric shaft is rotated to enable the taper pin to be located on the highest cylindrical surface of the eccentric shaft, so that the product is tensioned to eliminate gaps. According to the gapless positioning device, thread precession of the eccentric shaft is converted into up and down movement of the taper pin, tensioning and reliable self-locking of the expansion pin are achieved, zero-clearance accurate positioning of the product is realized, and the radial operation enables the product clamping process to be time-saving and labor-saving.

Description

technical field [0001] The invention belongs to the technical field of process equipment design and manufacturing technology, and in particular relates to a gapless positioning device. Background technique [0002] Whether the product positioning is accurate or not directly affects the processing accuracy of the product; therefore, how to eliminate the positioning gap of the product in the process of machining is a subject of research at home and abroad. In the field of aerospace machining, there are a large number of products that are positioned with one side and two holes, whether it is military aircraft or civil aircraft. Such products are usually positioned by a combination of a cylindrical pin and a diamond pin or a round sleeve, a long round sleeve and a pin, thereby reducing the accuracy requirements in the direction of the connection between the two holes. However, no matter how high the accuracy of the positioning pin or positioning sleeve is, if the product is to ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23Q3/06B25B11/00
CPCB23Q3/062B25B11/00
Inventor 曹烈宋国秋曲笛
Owner SHENYANG AIRCRAFT CORP