Trimming block for inner hole grinding clamping jaw and application method of trimming block

Abstract

The invention discloses a trimming block for an inner hole grinding clamping jaw and an application method of the trimming block. The trimming block comprises a cylinder and a plurality of bosses arranged on the side face of the cylinder, wherein the diameter of the cylinder is smaller than that of the inner circle of a clamping part of the clamping jaw; the diameter of the excircle of each boss is smaller than that of the inner circle of the inner side of the clamping jaw; and the width of each boss does not exceed the width of a gap between every two adjacent clamping claw wrapping claws. The trimming block is simple in structure and easy to manufacture, after the trimming block is clamped by the clamping jaw, trimming of the part clamping portion at the front end of the clamping jaw is economical and reliable, and the grinding machining requirement of a precise inner hole can be met.

Description

technical field [0001] The invention belongs to the technical field of precision parts processing, in particular to a trimming block for inner hole grinding jaws and a using method thereof. Background technique [0002] When the dimensional tolerance and shape and position tolerance of the inner hole of the part are required to be less than 5 μm, the machining method used needs to include grinding, and whether the grinding quality of the precision inner hole can meet the final requirements needs to be solved first. Reliable clamping question. At present, the commonly used clamping method for precision inner hole grinding is the claw clamping structure. For parts with a large diameter inside and a small diameter outside, the fixture needs to be designed to avoid the step shape of the part shape. The schematic diagram is as follows figure 1 shown. If the claws jump during precision machining of parts, on the one hand, there will be insufficient local machining allowance and ...

AI Technical Summary

Problems solved by technology

If the claws jump during precision machining of parts, on the one hand, there will be insufficient local machining allowance and the parts will be scrapped;

Therefore, in order to ensure the processing quality of the inner hole of the part, it is necessary to trim the parts where the jaws hold the parts before processing. If the jaws are in the clamping state when trimming the open steps, the jaws cannot clamp the parts after correction. In the unclamped state, it is difficult to effectively eliminate the jumping of the jaws after trimming

Therefore, it is particularly important to trim the claws in what state, and the ordinary trimming block cannot enter the inside of the claws, and the fixing of the claws cannot be realized, and the accurate dressing of the claws cannot be realized.

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