Two-process clamping device for DJG4 framework

Abstract

The invention relates to a two-process clamping device for a DJG4 framework. The device comprises four Z-direction positioning seats, two Y-direction positioning clamping seats, an X-direction positioning seat and an X-direction clamping seat, wherein a positioning key is arranged on the lower surface of each positioning seat, and each positioning seat is connected to a worktable through the positioning key; the degree of freedom of displacing in Z direction, and the degrees of freedom of rotating around an axis X and an axis Y are limited through the four Z-direction positioning seats; the degree of freedom of displacing in Y direction, and the degree of freedom of rotating around an axis Z are limited through the two Y-direction positioning seats; the degree of freedom of displacing in Xdirection is limited through the X-direction positioning seat; when mounting the workpiece, positioning nails in the Z, Y and X directions are correspondingly clung to the corresponding positioning seats, thus finishing the mounting. The device has the advantages that the framework can be quickly and accurately fixed to a tool, thus the production efficiency is improved, the working intensity isreduced, and the processing cost is decreased; in addition, the tool cost is low; and the tool is applicable the frameworks of automobiles with other types when the frameworks are processed by the abovementioned positioning manner.

Description

technical field [0001] The invention relates to a tooling positioning technology for frame machining in the locomotive processing and manufacturing technology, in particular to a second-process clamping device for a DJG4 frame. Background technique [0002] With the continuous development and progress of the social economy, the demand for passenger electric locomotives increases, and the requirements for the load, speed and manufacturing quality of passenger electric locomotives are also getting higher and higher. The DJG4 frame is an important part of the bogie, which plays the role of connecting the drive unit and the entire car body. Its performance and safety performance requirements are relatively high. The structure of the product is complex, and the manufacturing requires high precision, which plays a vital role in safe operation. important role. [0003] In the modern mechanical processing industry, due to the steady improvement of the processing capabilities of mac...

AI Technical Summary

Problems solved by technology

If the processing concept still stays in the original ordinary machine tool for processing, using multiple processes to process the same workpiece, it will not only increase a lot of manpower, material resources, and process connections, but also waste a lot of unnecessary auxiliary time, resulting in high operating costs and low efficiency. New errors will also be generated due to positioning reasons during the conversion of each process

[0004] In view of the complex structure of the frame of this locomotive, according to the traditional processing technology, the auxiliary time is long, the process is many, the number of machine tools is large, and the efficiency is low. Now it is necessary to provide a processing fixture to solve the special size requirements of the connection with the next process. , to adapt to today's rapid development of modern processing industry

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