Clamping device for machining thin-walled disc part

Abstract

The invention discloses a clamping device for machining a thin-walled disc part. Preliminary clamping and positioning of the part is performed by a clamp body, a support is pushed to move backwards along a linear rail by a hydraulic cylinder, and the part is pressed by a floating gland, so that primary clamping of the part is realized; after the part is clamped, a pneumatic angular positioning mechanism retracts, a spindle of a machine tool rotates, the part rotates together with a rotating gland, and then a surface A, a hole B, a groove G, an external diameter F and a surface H of the part can be machined by the machine tool; and so long as a turning tool of the machine tool extends into the rotating gland via an axial through hole, a surface C, a groove F and a hole E of the part can be machined. Compared with the traditional technology, the clamping device provided by the invention can reduce the clamping frequency of the part, can realize turning of all machined surfaces of the thin-walled disc part by clamping the part once, effectively avoids part collisions caused by turnover between procedures, can remarkably improve the machining efficiency of the thin-walled disc part, ensures the machining accuracy of the part, improves the machining quality of the product, reduces the cost and improves the benefit.

Description

technical field [0001] The invention relates to a clamping device for machine tool processing, in particular to a clamping device for processing thin-walled disk parts. Background technique [0002] Thin-walled disc parts are widely used in automobile transmission parts, and are sealed parts, which play a role in sealing, dustproof and leakproof for transmission parts of automobile gearboxes. figure 1 It is the appearance diagram of die-cast aluminum blanks of common thin-walled disc parts, figure 2 yes figure 1 A-A sectional view in middle, the traditional processing procedure of this part includes two procedures: the first procedure, using three of the five ear surfaces of the die-casting aluminum blank as the clamping and positioning reference, turning the A surface, B hole, C surface, D surface of the part Groove and E hole; the second process, after the first process is completed, the fan-shaped jaws are used to support the B hole, and the A surface is used as the en...

AI Technical Summary

Problems solved by technology

The disadvantages of this traditional processing procedure: 1. The processing of parts requires two processes. In the process of processing, the processes are scattered and require high skills for operators; 2. The parts are made of die-cast aluminum alloy and are relatively thin. The clamping rigidity is poor and easy to deform. In addition, it is easy to produce bumps during the process turnover process, which affects the appearance of the parts; the third or second clamping will inevitably cause clamping errors, resulting in low precision of the processed products, especially the shape and position tolerance requirements cannot be met. be effectively improved

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