Self-centering adjustable machining clamping device and clamping method

Abstract

The invention relates to a self-centering adjustable machining clamping device comprising a base plate (1) and a plurality of sets of clamping tools arranged on the base plate. Each set of clamping tools comprises an upper pressing plate (2), a lower pressing plate (6), an upper positioning block (10), a forward and reverse screw rod (11), polish rods (12) and a lower positioning block (15); and the forward and reverse screw rod (11) and the polish rods (12) are arranged in parallel and penetrate through the upper positioning block (10), the upper pressing plate (2), the lower pressing plate (6) and the lower positioning block (15) from top to bottom respectively. By the adoption of the self-centering adjustable machining clamping device, the problem that the clamping machining preparation time of wing rudder type parts is too long is effectively solved, the problems of great difficulties in clamping and no way of guaranteeing the centering precision caused by part deformation are solved, the clamping efficiency is greatly improved, meanwhile, clamping is firmer, and the precision reliability is further improved.

Description

technical field [0001] The invention belongs to the field of mechanical clamping, and in particular relates to a self-centering adjustable machine clamping device and a clamping method. Background technique [0002] Wing parts and rudder surface parts have an aerodynamic shape structure, and the curvature of the surface is complex. The parts are clamped by using a general-purpose press plate and a jack. It is difficult to control the positive time, and it is difficult to guarantee the processing efficiency of parts. At the same time, under the action of welding force and heat, wing and rudder parts often cause large deformation of parts, and even some parts can deform up to 4mm. The original clamping tooling adopts rigid connection. When the product deformation is large, it is often difficult to adjust the clamping position of the part, and it is difficult to achieve the requirement that the clamping accuracy of the part is controlled within 0.1mm. The adjustment time for a ...

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Problems solved by technology

[0003] The invention provides a self-centering adjustable machine clamping device and clamping method, which solves the problem of too long preparation time for clamping and processing of wing rudder parts, and also solves the difficulty of clamping caused by the deformation of parts, and the accuracy of alignment cannot be achieved. Guarantee and other issues

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