CN1833806A

CN1833806A - Cutting method of controlling gap width of laser cutting

Info

Publication number: CN1833806A
Application number: CN 200510018402
Authority: CN
Inventors: 孙红安
Original assignee: Individual
Current assignee: Individual
Priority date: 2005-03-18
Filing date: 2005-03-18
Publication date: 2006-09-20

Abstract

A laser cutting method able to control the width of cut slit includes such steps as providing a control computer, setting up the central line of the slit to be cut as reference line, setting up two cutting lines at both sides of said reference line, adding the distance between two cutting lines with the size of cutting head to obtain the width of the cutslit, aligning the center of focused laser bean with the center of cutting line, and cutting along two cutting lines respectively.

Description

A kind of cutting method of controlling gap width of laser cutting

Technical field

The present invention is a kind of cutting method that the width that uses laser cutting machine to cut the slit on workpiece is controlled.

Background technology

In existing laser cutting processing technique, cutting gap width size is determined by the cutter head width of slit size of laser head, by the adjusting to the laser head focal length, can be regulated cutter head width of slit size.To control the width in cutting slit, it is the datum line of on the control computer, setting the slot line center that to cut, centrally aligned slot line center with laser head, then by setting cutting width size adjustment focal length, the cutter head width of slit size of laser head changes with the adjusting of focal length, after fixed focal length, carry out disposable cutting by laser head along datum line, and finish the cutting process in slit.The cutting method of this kind control gap width, during for the laser instrument of smaller power cutting broad slit, make the cut edge coarse phenomenon occur, even high power laser is when cutting broad slit, focal length is big more, be subjected to the big offset deviation of the easy more generation of machine vibration, be difficult to cut out accurately desired cutting gap width, whole work-piece is scrapped. and be exactly very narrow thin originally with the slit of Laser Processing, focus and calculate the cutter head width of slit with artificial and naked eyes, not only bother, and very difficult.

Summary of the invention

Purpose of the present invention is exactly the cutting method that the more convenient control cutting gap width that must not focus accurately of a kind of energy will be provided.

The goal of the invention of this method is achieved in that and fixes the laser head focal length, by focal length, just can calculate the width dimensions of cutter head joint-cutting.On the control computer, set the slot line of required cutting, and be datum line with the center line of slot line, respectively set an equidistant line of cut again in the datum line both sides, article two, the distance between the line of cut deducts the width dimensions of cutter head joint-cutting for the width dimensions that will cut the slit, with laser head focal length centrally aligned line of cut, control by computer, laser head is cut on two lines of cut respectively, cut off the unsettled body between two lines of cut then, just can cut out to meet and cut slit chi and the higher slit of precision.

Use this method to cut, can not only make low-power laser cutting function cut out the slit of broad, and the gap width size that cuts out is accurate, the edge is smooth, the workpiece quality height.Especially must not focus, easy to operate.

The specific embodiment

Embodiment 1

As will on workpiece, being of a size of 1 millimeter slit by cutting width, the cutter head joint-cutting of calculating laser head by fixing focometer is 0.2 millimeter, on the control computer, with the center line of setting required cutting slot line is datum line, respectively establish an equidistant line of cut in the datum line both sides, article two, subtract 0.2 millimeter apart from being 1 millimeter between the line of cut, equal 0.8 millimeter.With laser head focal length centrally aligned line of cut, under computer control, laser head cuts two lines of cut respectively, both sides, line of cut center are cut for each 0.1 millimeter, every line of cut all is cut to 0.2 millimeter slit, in the middle of two line of cut slits one 0.6 millimeter unsettled body is arranged, and it is cut off at two ends by laser head, unsettled body comes off, and the slit that just cuts out 1 millimeter on the workpiece is come.

Embodiment 2

As will on workpiece, being of a size of 1.5 millimeters slit by cutting width, the cutter head joint-cutting of calculating laser head by fixing focometer is 0.3 millimeter, on the control computer, with the center line of setting required cutting slot line is datum line, respectively establish an equidistant line of cut in the datum line both sides, article two, subtract 0.3 millimeter apart from being 1.5 millimeters between the line of cut, equal 1.2 millimeters.With laser head focal length centrally aligned line of cut, under computer control, laser head cuts two lines of cut respectively, both sides, line of cut center are cut for each 0.15 millimeter, every line of cut all is cut to 0.3 millimeter slit, in the middle of two line of cut slits one 0.9 millimeter unsettled body is arranged, and it is cut off at two ends by laser head, unsettled body comes off, and the slit that just cuts out 1.5 millimeters on the workpiece is come.

Claims

1 one kinds of cutting methods of controlling gap width of laser cutting, to cut the datum line at center, slit by the computer setting, it is characterized in that respectively setting an equidistant line of cut in the datum line both sides, article two, the distance between the line of cut adds that the cut lengths of laser head cutter head joint-cutting equal the gap width size that will cut, and laser head cuts two lines of cut respectively.