Pressing mechanism for airplane titanium alloy part processing tool table

Abstract

The invention relates to a pressing mechanism for an airplane titanium alloy part processing tool table, in particular to an auxiliary device for a machine tool processing part. The pressing mechanismcomprises four parts, which are separately a pedestal regulating and fixing mechanism, a left side lifting pressing mechanism, a right side lifting pressing mechanism and an X-direction pressing mechanism, wherein the left side lifting pressing mechanism and the right side lifting pressing mechanism are mounted and fixedly arranged on the pedestal regulating and fixing mechanism, and define a threaded-transmission and spline-transmission matching relationship with the pedestal regulating and fixing mechanism; and the X-direction pressing mechanism is mounted and fixed on the pedestal regulating and fixing mechanism. The pressing mechanism can be manually and quickly regulated, and a motor drives equipment to realize automatic regulation on a clamping dimension and a clamping position as well as clamping with set load; and the motor drives blank to lift and rotate, so that multi-surface processing is realized.

Description

technical field [0001] The patent of the present invention belongs to the field of mechanical manufacturing, and specifically relates to a pressing mechanism of a tooling table for processing titanium alloy parts of aircraft, which is an auxiliary device for processing parts of machine tools. Background technique [0002] Before the machining parts are machined by the machine tool, the blank first needs to be fixed on the working plane of the machine tool. Now, the fixing of the part blank is mainly fixed on the working plane of the machine tool by the threaded pressure plate. This method requires the worker to use a wrench to tighten and fix it manually. The operation is more troublesome, and the pressing force is inconsistent each time. The pressing force of the pressing plate is also inconsistent, resulting in different degrees of fit between each part and the working plane of the machine tool. In addition, the processing positioning position of each part is also inconsi...

AI Technical Summary

Problems solved by technology

Now, the fixing of the part blank is mainly fixed on the working plane of the machine tool by the threaded pressure plate. This method requires the worker to use a wrench to tighten and fix it manually. The operation is more troublesome, and the pressing force is inconsistent each time. The pressing force of the pressing plate is also inconsistent, resulting in different degrees of fit between each part and the working plane of the machine tool

In addition, the processing positioning position of each part is also inconsistent, resulting in a relatively large difference in the processing accuracy of the same part of the same batch.

[0003] A large number of titanium alloy materials are used in the aircraft structure, and the processing of aircraft titanium alloy parts is difficult, easy to deform, and the structure of the parts is complex

At present, when the factory processes titanium alloy parts, the blank is fixed on the working surface of the machine tool, the first side is roughly machined, and then the second side is processed. After heat treatment, the first and second sides are finished, so one part is processed. Need to go through such repeated clamping, and will bring a considerable workload

The clamping method of the parts is to use the bolt pressing plate, the work intensity of the workers is high, and the clamping time of the larger parts can even exceed 4 hours, and the clamping efficiency is very low.

Due to the small tolerance range and high precision of aircraft titanium alloy parts, repeated clamping will bring large errors, resulting in parts being out of tolerance and scrapped, causing serious losses to the factory

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