Positioning pin facilitating workpiece cleaning

A technology for positioning pins and workpieces, applied in cleaning methods and tools, chemical instruments and methods, bolts, etc., can solve the problems of unclean cleaning of workpiece pin holes, and achieve the effects of simple structure, stable support, and easy cleaning

Active Publication Date: 2015-08-12
CHONGQING CHANGAN AUTOMOBILE CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] The purpose of the present invention is to provide a positioning pin which is convenient for workpiece cleaning, which can so

Method used

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  • Positioning pin facilitating workpiece cleaning
  • Positioning pin facilitating workpiece cleaning
  • Positioning pin facilitating workpiece cleaning

Examples

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[0019] The present invention will be further described below with reference to the drawings and embodiments.

[0020] A positioning pin 1 for easy cleaning of the workpiece 2, such as figure 1 As shown, when in use, the connecting column 14 of the positioning pin 1 is screwed to the clamp 3, and the pin is inserted into the positioning groove 15 through the through hole of the clamp 3 for positioning. After the positioning pin 1 is positioned and connected on the fixture 3, the workpiece 2 to be cleaned is clamped, and the positioning pin 12 is inserted into the pin hole of the workpiece 2 for positioning during loading. The supporting table 13 between the positioning column 12 and the connecting column 14 supports and locates the workpiece 2, and its two end surfaces are close to the surface of the workpiece 2 and the surface of the fixture 3. The idea of ​​this solution is to design a channel leading from the side of the supporting table 13 to the pin hole of the workpiece 2 so...

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Abstract

The invention relates to a positioning pin facilitating workpiece cleaning. The positioning pin comprises a pin body, a positioning column inserted into a workpiece pin hole is arranged at one end of the pin body, a connection column in threaded connection with a fixture is arranged at the other end of the pin body, the surface of the connection column is provided with external threads, a supporting table is disposed between the positioning column and the connection column, and multiple channels penetrate out of the surface of the supporting table from the bottom end of the positioning column and along the side face of the positioning column. By means of the technical scheme, the problem that a workpiece pin hole is not cleaned thoroughly when an existing cleaning machine positioning pin is used can be solved.

Description

technical field [0001] The invention relates to engine processing technology, in particular to a positioning pin for cleaning workpieces. Background technique [0002] After the engine crankcase and cylinder head are machined, a large amount of aluminum shavings remain in the machined lines and in the pin holes on the surface, which are usually cleaned by a washing machine. The cleaning machine uses a clamp to clamp the crankcase and cylinder head to be cleaned, specifically the positioning pin is fixed on the clamp, and the outer end of the positioning pin is inserted into the pin hole of the crankcase and cylinder head to fix the crankcase and cylinder head. During the cleaning process, the aluminum chips in the pin hole are blocked by the positioning pin and cannot come out of the pin hole. In order not to affect the cleaning quality of the product, it is often necessary to carry out special cleaning on the pin hole. A method disclosed in the patent document CN 103658084 ...

Claims

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Application Information

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IPC IPC(8): B08B13/00F16B19/02
CPCB08B13/00
Inventor 陈婷刘彬胡期君卿文德林鸿
Owner CHONGQING CHANGAN AUTOMOBILE CO LTD
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