JPS58215288A - Laser working device - Google Patents

Abstract

PURPOSE:To work the work on a straight axis connecting the focus of parabolas created by a parabolic mirror cylinder three-dimensionally, by making an emission part for laser beam movable on a plane. CONSTITUTION:A tilted device consists of a reflection part 3 having a cylindrical shape of a parabolic mirror for laser beam, an emission part 1 for laser beam, and a pedestal part 4 which installs and fixes the work on the straight axis connecting the respective focuses of the parabolas created by the above- mentioned parabolic cylinder. The part 3 has a parabolic mirror applied with a total reflection mirror. The part 1 is movable on one plane which is perpendicular to the parabolic surface of the part 3. The uniform three-dimensional working is accomplished by the plane movement of the part 1 and rotating movement of the part 4 of said device.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to tt[, which processes a workpiece three-dimensionally using a laser beam.

Conventional laser processing equipment fixes the workpiece on an X-Y table and moves the X-Y table to process the workpiece by irradiating the workpiece with a laser beam from a fixed laser beam emitting unit. A method was taken to do so.

However, in conventional laser processing equipment, the workpiece is
-The Y table is fixed on a flat surface, and machining can only be performed on the flat surface, which is not suitable for three-dimensional machining of a workpiece.

The purpose of the present invention is to eliminate such conventional drawbacks and to uniformly process the outer periphery of a workpiece three-dimensionally by moving a laser beam emitting unit on the plane. This is a device with a

According to the present invention, the laser beam irradiated toward the laser beam reflecting section in a direction perpendicular to the scanning plane of the laser beam emitting section is shaped like a paraboloid that has a one-to-one mapping relationship with the laser beam emitting point. Due to the property of moving toward one focal point on a straight line consisting of the focal group of the parabolic group formed by the surface lens barrel, it is possible to prevent the plane movement of the laser beam emitting unit and the rotational movement outside the building with respect to the outer periphery of the workpiece. By operating the al
It is Noh.

The present invention will be described below with reference to drawings showing embodiments. FIG. 1d is a diagram showing a first embodiment, in which the laser beam emitting unit 1 is placed on a laser beam emitting scanning plane 2, and can emit a laser beam in a direction perpendicular to the plane while moving on the plane. . The laser light emitting scanning plane 2 is perpendicular to the paraboloid of a laser beam reflecting section 3 in the form of a parabolic lens barrel, which has a parabolic mirror with a total reflection mirror inside. A pedestal section 4, which can hold and fix a workpiece, can rotate about a plane line connecting the focal points of a parabola formed by the parabolic lens barrel as a central axis 5.

FIG. 2 is a diagram showing the case where the laser beam emitting unit 1 moves linearly by the minimum laser beam emitting movement distance 6 without emitting a laser beam on the laser beam emitting scanning plane 2. In this laser processing, there is a portion 8 that cannot be irradiated with the laser beam reflected from the parabolic mirror with respect to the length 7 parallel to the laser beam emission scanning plane of the workpiece. The light beam is also irradiated onto the portion 8.

[Brief explanation of the drawing]

FIG. 1 is a three-dimensional diagram showing the construction of an embodiment of the present invention, and the second diagram is a top view of an embodiment of the present invention, showing the laser beam emission movement and the laser beam I5 to the workpiece. FIG. 6 is a diagram showing the relationship with the irradiated portion. DESCRIPTION OF SYMBOLS 1... Laser beam emitting part, 2... Laser beam emitting scanning plane, 3... Laser beam reflecting part, 4... Pedestal part, 5... ... Rotation center axis of the pedestal, 6 ... Minimum laser beam emission movement distance, 7
... Workpiece, 8 ... Distance parallel to the laser beam powder emitting hill plane of the workpiece, 9 ... Portion where the reflection of the laser beam cannot be irradiated. 1st leap 2nd close

Claims (1)

[Claims] a parabolic lens barrel-shaped laser beam reflecting section having a parabolic mirror with a total reflection mirror on the inside; and at least one plane perpendicular to the parabolic surface of the laser beam reflecting section; It consists of a laser beam emitting section that can move the plane, and a pedestal section that can set and fix the workpiece on a linear axis connecting each focal point of the parabola formed by the parabolic lens barrel. 1. A laser processing device characterized by emitting a laser beam while standing still or moving above the workpiece, thereby uniformly processing one point of a workpiece or the circumference of the workpiece three-dimensionally.