Constant-speed elliptical track laser precision machining method of oblique cone circular table

Abstract

The invention provides a constant-speed elliptical track laser precision machining method of an oblique cone circular table. The constant-speed elliptical track laser precision machining method comprises the steps that (1) an oblique cone circular table workpiece is clamped on a rotary table by a profiling clamp; (2) a machining head is mounted above the surface of the oblique cone circular table and has two freedom degrees of motion; and (3) the machining head is controlled to clockwise move in the Wx direction at the VX speed and move in the Wz direction at the VZ speed starting from the initial position point A of an elliptical cone curve, the oblique cone circular table workpiece rotates around the center axis of a right circular cone at the angular speed W(t), and meanwhile laser beams are output to start laser machining, wherein laser machining is any process technology for doing linear motion on the surface of the workpiece based on the focusing laser beams. According to the constant-speed elliptical track laser precision machining method, motion planning of the laser machining head is quite easy and convenient; and meanwhile complex constant-speed cone curve motion track planning is converted into precise variable-speed motion planning of the rotating speed of the single rotary table, and the precise machining track and the stable machining process quality can be obtained.

Description

technical field [0001] The invention belongs to the field of laser processing, and in particular relates to a laser precision processing method of a constant-velocity ellipse track of an oblique cone and circular frustum. Background technique [0002] A conic section refers to the contour line obtained by intercepting a conical surface by a plane. In space, take the straight line 1 as the axis, the straight line 1' and 1 intersect at point O, and the angle is α, and 1' rotates around 1 to obtain a conical surface with O as the vertex and 1' as the generatrix, and take the plane π randomly, If it intersects the axis 1 at an angle of β (π is parallel to 1, denoted as β=0), then: (1) β>α, the intersection line between the plane π and the cone is an ellipse (such as figure 1 shown), if β=90° is satisfied at the same time, that is, the plane π is perpendicular to the axis of the cone, and the intersection line between the plane π and the cone is a circle (such as figure 2 (...

AI Technical Summary

Problems solved by technology

There is no universal and accurate laser precision machining method for elliptical conic curves

Images