Die-free spinning machining clamp

Abstract

The invention discloses a die-free spinning machining clamp. The die-free spinning machining clamp comprises a clamp disc. The clamp disc is divided into a plurality of clamp petals; a plurality of clamping assemblies are uniformly distributed on clamping surfaces of the clamp petals around the center of the clamp disc; a rotary power transmission assembly is arranged in the center of the clamp disc and used for being connected with a spinning spindle and transmitting power to drive the clamp disc to rotate; a clamp petal traction assembly is further arranged in the center of the clamp disc; the clamp petal traction assembly comprises outer supporting guide rods penetrating through the rotary power transmission assembly; the outer supporting guide rods are connected with the clamp petals through outer supporting pull rods; and the plurality of clamp petals can be folded or separated along the radial direction along with the axial movement of the outer supporting guide rods. The die-free spinning machining clamp is high in universality, wide in size range and variety range of clamped machined parts, free of assistance of a die or a tail ejector, capable of effectively reducing the production cost and improving the spinning production efficiency and suitable for fixing various hollow thin-wall materials.

Description

technical field [0001] The invention relates to the technical field of spinning equipment, in particular to a moldless spinning fixture. Background technique [0002] Spinning, as an important processing and production method, is widely used in product forming and processing, and is mainly used in the production of large-scale heavy industry products, including the production of thin-walled tubular products and ring products such as tuyere products and aerospace products. During the spinning process, the workpiece needs to be clamped by a fixture, and the spinning process is performed under the rotation drive of the spinning spindle. [0003] For existing horizontal and vertical spinning machine tools, etc., the spinning fixtures used in spinning are usually custom-made fixtures with a small scope of application, and usually require molds for auxiliary positioning. When processing blanks of different shapes and sizes, it is necessary to replace different fixtures or perform...

AI Technical Summary

Problems solved by technology

[0004] In order to solve the problems that the spinning machine tools in the prior art need to be assisted by molds or tail tops, the production cost is high, the spinning production efficiency is low, and the use range is narrow, the object of the present invention is to provide a moldless spinning jig

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