Three-dimensional curved surface processing device, method and application

Abstract

The invention discloses a three-dimensional curved surface processing device, method and application. The device includes a cutting tool, a fixture, a feed mechanism and a cam mechanism. The curve obtained by projecting the target processing surface on the XOZ surface and rotating the outer contour line by 180° is used as the characteristic contour curve of the cam, and the shape of the characteristic curve on the target processing surface is used as the The shape of the cutting edge of the cutting tool controls the feed mechanism to drive the blank of the part to be processed to move relative to the cutting tool in the X-axis direction. With the cooperation of the cam and the follower, the blank of the part to be processed simultaneously generates a Z The displacement in the axial direction, the cutting tool processes a series of curves with the same shape at different contact positions of the blank to be processed, and finally forms the target processing surface to complete the three-dimensional surface processing. The invention has the advantages of simple structure, convenient control, easy realization, good precision control, high processing efficiency, low cost, convenient equipment maintenance, and is especially suitable for three-dimensional curved surface processing of bamboo and wood products.

Description

technical field [0001] The invention belongs to the field of mechanical processing, and in particular relates to a three-dimensional curved surface processing device, method and application. Background technique [0002] In the field of mechanical processing, workpieces are often processed in various ways, such as cutting and stamping on the surface of the workpiece. One of the common ones is to process a flat plate into a three-dimensional curved surface with a certain radian. [0003] The traditional curved surface processing method is mostly to select a punch that matches the target curved surface, fix the workpiece on the machine tool, and use the cylinder to drive the punch to impact the workpiece, finally forming the workpiece into a preset shape. However, there are certain defects in the existing technology, such as directly fixing the workpiece on the machine tool, there is friction between the workpiece and the machine tool in the process of processing, which causes...

AI Technical Summary

Problems solved by technology

For example, at present, CNC five-axis linkage machine tools are mostly used for complex surface processing. Five-axis linkage has high requirements on the control system, involving precise control, software algorithms, etc., and the cost is expensive, which is too burdensome for small factories; In addition, The number of linked axes is large, and the processing error is doubled, resulting in a decrease in surface processing accuracy; moreover, NC processing is generally single-piece processing, and processing takes a long time. For low-profit mass production of parts, NC processing methods are not suitable Not suitable

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