Three-dimensional curve processing device and method and application

Abstract

The invention discloses a three-dimensional curve processing device and method and application. The device comprises a cutting tool, a clamp, a feeding mechanism and a cam structure; a curve obtainedby projecting a target process curved surface on a XOZ plane and rotating an outer contour line with 180 DEG is used as a characteristic contour curve of a cam, a shape of the characteristic curve onthe target processing curved surface is used as the shape of a cutting edge of the cutting tool, the feeding mechanism is controlled to drive a to-be-processed part blank on an X-axle direction to relatively move relative to the cutting tool; under the cooperation of the cam and a driving member, the to-be-processed part blank simultaneously displace on an Z-axle direction relative to the cuttingtool, the cutting tool machines a series of curves with the same shape on different contact positions of the to-be-processed part blank, finally forming the target processing curves surface to complete the three-dimensional curved surface processing. The device disclosed by the invention is simple in structure, convenient to control, easy to realize, good in precision control, high in processing efficiency, low in cost, convenient for equipment maintenance, and especially suitable for the 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...

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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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