JPS6272494A - Working material pedestal device for laser beam machine - Google Patents

Abstract

PURPOSE:To prevent deformation and burning, and to decrease adhesion of dross by applying diagonally a pressure fluid to the reverse side of a working material from an annular inclined jet port of a suction mouthpiece which has been fitted to a pedestal, and cooling a working part whose temperature has been raised by laser beams of the working material. CONSTITUTION:A suction mouthpiece 40 is fitted to a through-hole 31 which has been provided in the center of a pedestal 30 on which plural swivel bearings 32 are provided. This suction mouthpiece 40 is constituted of a combination of a truncated lower base body 41 in which a through-hole 43 has been formed in the center, and an upper base body 45 for forming an inclined jet port 47 against an inclined surface 42 of the outside periphery of this lower base body 41, and also a fluid passage 49 is formed by both the base bodies 41, 45. A pressure fluid which has been supplied from the fluid passage 49 is jetted diagonally and applied to the reverse side of a working material W from the annular inclined jet port 47, cools the working material W, and simultaneously, passes through the lower direction from the through-hole 43 of the lower base body 41, and in this case, a working residue and gas generated by working of laser beams 11 are absorbed and eliminated efficiently. Accordingly, deformation and burning of the working material W are prevented, and adhesion of dross is reduced.

Description

Detailed Description of the Invention [Industrial Field of Application] This invention provides a method for processing a workpiece by condensing V-za beams with '2v lenses and irradiating the workpiece to the workpiece. The present invention relates to a processing material receiving device that supports the processing material and also suctions gas and dross by ejecting fluid.

[Conventional 'ffl':IV-za processing machines are known. V-The processing standby is a method in which the material to be processed is processed by melting or evaporating by irradiating the source energy and converting it into thermal energy, so the material to be processed is affected by thermal processing. . Specifically, the first is that the dimensional accuracy of processing deteriorates due to thermal deformation, the second is that a lot of burnt color appears on the back side of the workpiece material, the third is that the workpiece material is burnt, and the fourth is that The disadvantages of the laser processing method include the fact that dross adheres to the back surface of the material to be processed, and the fact that gas is generated from the material to be processed.

On the other hand, in conventional V-za processing machines, the countermeasures for processing the workpiece material from the back side include a dust collection method using a stator hole or a gas blowing method using a simple pipe.

[Problem that the invention attempts to solve]

However, the above-mentioned dust suction method using holes is disadvantageous in that it is impossible to supply gas from the surface of the workpiece material, and the suction force is weak because the suction cannot be concentrated. This method is unable to prevent the machining swarf that erodes out from the back side of the workpiece material from scattering in all directions, and tends to accumulate on the sides of the hole. Therefore, this method only collected dust from the gas and processing debris floating in the atmosphere. Also, the method of blowing gas through a simple pipe was completely useless.
It does not have the ability to do so, and only dissipates the processing debris generated on the back side of the workpiece material into the atmosphere, which not only worsens the working environment, but also adheres to the sliding and rotating parts of mechanical equipment, causing damage to these parts. There are many lifting platforms that shorten the service life and impede the progress of the auxiliary gas ejected from the processing nozzle, weakening the action of the auxiliary gas. As a result, this method has the problem that burning the iron surface of the workpiece material is only slightly effective in preventing discoloration and combustion.

This invention was made to solve the above problems, and it not only improves the dust collection ability, but also eliminates the need for processing materials that do not adhere to processing particles. The purpose is to provide 'Y.

〔problem! Means to solve]

The laser sword σ processing sword U work material removal stand device according to the present invention has a suction cap 7 installed in a through hole provided in the center of a pedestal that supports a workpiece material, and this suction cap 7, A frustum-shaped lower base with a through hole formed in the center, an upper base that forms an inclined spout between an inclined surface on the outer periphery of the lower base, and a fluid passageway that supplies pressurized fluid to the inclined jet nozzle. It is composed of

[Effect]

In this invention, the pressurized fluid supplied from the fluid passage is ejected obliquely from the inclined ejection port and hits the back surface of the wave-forced loe material, and at the same time the workpiece material 7 is thrown away, it escapes downward from the X hole in the lower base. At this time, the gas generated by the force and the laser beam is efficiently removed by suction.

〔Example〕

Hereinafter, the drawings of Embodiment 8II'ft of this invention will be congratulated.

FIGS. 1 and 2 show an embodiment of the present invention, and are a side N view showing a section of the supporting part and a plan view of a cradle.

In this figure, 1) is a laser beam that is sent from a laser beam excavator (not shown). 12 is Nins, 13 is Head Booth, and NonoX12 is incorporated.

Reference numeral 14 indicates an auxiliary gas injection port, and reference numeral 15 indicates a nozzle, which mainly constitute the V-Zahekdo 10. W is the material to be processed. Reference numeral 20 denotes a processing material receiving stand device according to the present invention, which is roughly composed of a receiving stand 30 and a suction nozzle 40.

The cradle 30 has a through hole 31 formed in the center.
A plurality of swivel bearings 32 are provided along the circumference and slightly protrude from the upper surface, and support the workpiece W placed thereon so that it can be positioned in any direction. Acceptable 30
An annular stepped portion 33 is formed on the circumference of the suction cap 400, which acts as a stopper when the suction cap 400 is used as described below. Also, socket 3
0 is provided with a fluid passage 1!834 for supplying pressure fluid and a pressure fluid supply port 35.

The suction cap 40 is mainly composed of a lower S base 41 and an upper base 45.

The lower S base body 41 has a truncated conical shape, its outer periphery is an inclined f+ surface 42, and a through hole 43 is formed in the center. The through hole 43 is configured to gradually expand downward, that is, to form a truncated conical space. Then, when it is fitted into the through hole 31 of the cradle 30, the stepped portion 33
A step portion 44 that engages with the ring is formed in a ring shape.

The upper base body 45 has an annular shape, and its inner surface forms an annular inclined surface 46 that faces the inclined surface 42 of the lower base body 41 with a distance therebetween, and an inclined jet nozzle 47 is formed by both inclined surfaces 42 and 46. has been done. An enlarged portion 48 is formed in an annular shape below the inclined spout 47, and a fluid passage 49 is formed in this enlarged portion 4B, which matches the fluid passage 34 of the pedestal 30. Reference numeral 50 denotes a suction duct, which is provided below the lower base 41 and is sucked by a suction machine (not shown).Next K1) 1 operation will be explained.

When using a sword, the laser head is 10KV - the original 1)'
, and irradiates the material W to be processed from the slit 15 to perform processing. At this time, auxiliary gas is introduced from the auxiliary gas inlet 14 and sprayed onto the material W to be processed.

On the other hand, the workpiece W on the pedestal 30 is positioned by a positioning mechanism (not shown). Then, pressure fluid is supplied from the supply port 35 of the pedestal 30.

This pressure fluid flows back through the fluid passageway 34,49 and into the enlarged section 48.
From there, it passes through the inclined jet port 47' and is ejected from the upper part, and is blown onto the workpiece W from below. From this K, the dross generated by processing the workpiece material W,
Auxiliary gas, raw gas, etc. are discharged downward from the through hole 43 by pressure fluid.

After 5K, the back surface of the workpiece material W at the processing position is covered with the jetted fluid, which has the effect of preventing 1IIat18, and also produces a cooling effect in which heat is carried away by the flow of the fluid.

Furthermore, when the pressure yta of the pressure fluid is reduced, the velocity of the fluid flowing along the back surface of the workpiece material W increases, and the workpiece material W
The processing department Mll! The effect of waiting for the dross that is attached to IIk also appears. This has many effects with specially treated processed materials and laminated seaweed.

As shown in Fig. 1, when the pressurized fluid injected from the lower part of the workpiece material W is applied to the back surface of the workpiece W, as shown in FIG.
Because the flow direction of the pressurized fluid on the back surface of the processing S is perpendicular to the traveling direction of the laser beam and auxiliary gas, and because suction is performed from the suction device (not shown) K from below the center of the processing section, dross is generated. Processing debris, etc. are almost completely removed.

In addition, in the above embodiment, the suction cap 40''k holder 3
This may be screwed into the through hole 31 of No. 0. Further, the lower base body 41 and the upper base body 45 may be integrated from the beginning, or they may be created separately and then integrated by appropriate means.
(1' integrated, or upper s attaching body 45 and pedestal 3
0Y can also be integrated. The lower base body 41 may be shaped like a truncated cone, or it may be shaped like a truncated cone, as long as it is shaped like a truncated cone. Further, although the inclined jet nozzle 4T is formed in a planar shape, it can also be formed of a large number of tubular bodies.

〔Effect of the invention〕

As described above, the present invention includes a lower base having a frustum-shaped t-shaped hole and an x21Ii hole formed in the center, and an upper base disposed on the outer periphery of the lower base facing an inclined surface ° to form an inclined jet nozzle. Furthermore, since the suction mouthpiece, in which a fluid passageway for supplying pressure fluid to the inclined jet port is formed, is installed in the through hole in the center of the receiving base, the following effects can be obtained.

■ The flow of pressure fluid sufficiently cools the processed part of the heated workpiece material.

■ It is possible to use pressure fluid cooled, so the cooling effect can be increased.

■ By above ■ and ■, the sword loe deformation of the processed material can be prevented.

■ By using an inert gas as the pressure fluid, it is possible to prevent burning of the processed parts, and it is possible to cut even easily combustible materials.

■ By increasing the pressure and flow rate of the pressurized fluid, it is possible to reduce the amount of dross attached to the workpiece material.

■ It can protect the environment from gas and dust from processing or cutting.

As described above, according to the present invention, it becomes easier to handle the laser processing machine, and it also becomes possible to process the nuclear force μ material of the buttocks, which was previously impossible to process, thereby further expanding the scope of its use. It has the advantage of being expandable.

[Brief explanation of drawings]

FIG. 1 is a side sectional view showing one embodiment of the present invention, and FIG. 2 is a plan view of the embodiment of FIG. 1 with the 7-head removed. In the figure, 10 is the sensor head, 1) is the V-za element, 12 is the lens, 13 is the head case, 14 is the auxiliary gas inlet, 1
5 is a nozzle, 20 is a processed material holder device, 30 is a holder, 31 is a through hole, 32 is a swivel bearing, 40 is a suction cap, 41 is a lower base, 42.46 is an inclined surface, 43 is a page through hole, 44 is an IR section, 45 is an upper base, 4T is an inclined jet nozzle,
48 is an enlarged portion, and 49 is a fluid passage. Figure 1 n Figure 2 η

Claims (7)

[Claims] (1) In a laser processing machine that focuses laser light with a lens and irradiates it onto the workpiece material to perform processing: a pedestal that supports the workpiece material at a processing position and has a through hole formed at a position through which the laser light passes; ; a lower base having a truncated pyramid shape and having a through hole formed in the center; and an upper base disposed facing an inclined surface on the outer periphery of the lower base at a distance, and forming an inclined jet nozzle between the lower base and the inclined surface; A material to be processed by a laser processing machine, further comprising: a suction mouthpiece, the suction mouthpiece having a fluid passage for supplying pressure fluid to the slanted spout and installed in the through hole of the pedestal. cradle device. (2) A workpiece receiving device for a laser processing machine according to claim (1), wherein the suction mouthpiece is provided with an enlarged portion between the inclined ejection port and the fluid passage. (3) Claim (1) characterized in that the inclined spout of the suction cap is composed of a plurality of tubular bodies.
A processed material holder device for a laser processing machine as described in 2. (4) A processed material holder device for a laser processing machine as set forth in claim (1), wherein the through hole in the lower base of the suction cap is shaped to expand downwardly. (5) A processed material holder device for a laser processing machine according to claim 1, wherein the suction cap is screwed into the through hole of the holder. (6) A processed material holder device for a laser processing machine as set forth in claim (1), wherein the suction mouthpiece and the lower base are integrated. (7) A workpiece receiving device for a laser processing machine according to claim (1), wherein the suction cap and the upper base are integrated.