Positioning clamp for precision part processing

Abstract

The invention discloses a positioning clamp for precision part processing. The positioning clamp for precision part processing comprises a left support, a right support, a base plate, a plurality of pressing air cylinders, a pressing strip and a guide sleeve; the lower surfaces of the two ends of the base plate are fixedly connected with the upper surfaces of the left support and the right supportcorrespondingly; a plurality of air cylinder grooves are formed in the two sides of the lower surface of the base plate; the guide sleeve is arranged on a piston rod of the pressing air cylinder in asleeving way; the guide sleeve is embedded in a through hole in the upper surface of each air cylinder groove and is contacted and connected with the surface of the inner side of the through hole; the guide sleeve further comprises an inner guide sleeve, an outer guide sleeve, an outer shell sleeve and an upper pressing plate; the outer guide sleeve is in clamping connection and fixation with theupper pressing plate; and the upper pressing plate is fixedly connected with the shell sleeve through a plurality of screws. Through mutual adaption of the inner guide sleeve and the outer guide sleeve, the inner guide sleeve can slide between the outer guide sleeve and the piston rod; after the inner side surface of the inner guide sleeve and the piston rod are worn, the guide effect can be continuously guaranteed only by pushing the inner guide sleeve to a certain distance, the guide sleeve does not need to be changed frequently, and the service life of a jig is prolonged.

Description

technical field [0001] The invention relates to a tooling fixture, in particular to a pneumatic fixture suitable for high-precision product processing, and belongs to the field of CNC processing. Background technique [0002] With the rapid development of electronics, the size of components in electronic products is getting smaller and higher, and the precision is getting higher and higher. In particular, some parts need to be machined on multiple surfaces in different directions. At present, the commonly used processing method is to fix the parts on the On the CNC workbench, the tool first processes one surface, then disassembles the product and replaces the surface for repositioning, and then CNC processes the other surfaces. This processing method requires multiple positioning, resulting in large cumulative tolerances and low processing accuracy. Multiple times of loading and unloading are required, which is time-consuming and labor-intensive, which limits the working eff...

AI Technical Summary

Problems solved by technology

[0002] With the rapid development of electronics, the size of components in electronic products is getting smaller and higher, and the precision is getting higher and higher. In particular, some parts need to be machined on multiple surfaces in different directions. At present, the commonly used processing method is to fix the parts on the On the CNC workbench, the tool first processes one surface, then disassembles the product and replaces the surface for repositioning, and then CNC processes the other surfaces. This processing method requires multiple positioning, resulting in large cumulative tolerances and low processing accuracy. Multiple times of loading and unloading are required, which is time-consuming and labor-intensive, which limits the working efficiency of the CNC workbench

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