Rotary extrusion forming method of non-circular cross-section parts and equipment thereof

Abstract

The invention provides a spin forming method for non-circular section parts and equipment thereof. The method comprises the following steps: after a workpiece is mounted, a main shaft starts to drive the workpiece to rotate, and a rotary wheel device transversely feeds; within one-circle rotation of the main shaft, the rotary wheel device quickly moves forward and backward for a plurality of times, a coordinate relationship is maintained between rotary angles of the main shaft; at the same time, a platform is longitudinally moved to drive the rotary wheel to feed longitudinally, so that the workpiece, after spin forming, is formed into non-circular section parts; the equipment consists of a machine tool and a control platform circuit which are connected with each other, the machine tool comprises a main spindle box, a machine tool body, a longitudinal motion platform, a tail-top device, a servo motor feeding device, a hydraulic station, a linear motor feeding device and a rotary wheel device, the main spindle box and the tail-top device are coaxially arranged on both ends of the machine tool body, the hydraulic station is connected with the tail-top device by an oil pipe, the servo motor feeding device is arranged on one part of the machine tool body, the longitudinal motion platform is arranged in the machine tool body, both ends of the longitudinal motion platform are provided with longitudinal straight line guide rails, and the linear motor feeding device driving the rotary wheel device is arranged on one side of the longitudinal motion platform.

Description

technical field [0001] The invention relates to the technical field of plastic processing, in particular to a spinning forming method and equipment for parts with non-circular cross-sections. Background technique [0002] The traditional spinning forming methods can be divided into two categories, namely ordinary spinning (spinning without constant thinning) and powerful spinning (spinning with thinning). During ordinary spinning or powerful spinning, the workpiece is clamped on the spindle of the machine tool, and rotates with the spindle of the machine tool, and the spinning wheel moves radially and axially along the axis of the workpiece, so that it can be processed into various shapes of axisymmetric Thin-walled hollow parts (uniaxial spinning parts). [0003] In recent years, a new spinning forming method has emerged. During spinning, the workpiece is clamped on a worktable that can simultaneously or separately move longitudinally and laterally along the machine tool s...

AI Technical Summary

Problems solved by technology

This not only increases the process and prolongs the processing cycle, but also in the case of multiple varieties and small batches, the production cost will inevitably be too high. If the welding method is used, the mechanical properties of the material will also be reduced, which will affect the normal use of the parts.

Images