Unit for laser cutting of materials

FIELD: process engineering.

SUBSTANCE: this invention relates to cutting of metals by laser. Its use allows expanding operating performances by application of independent operation of two or more laser heads at one machine tool. Laser cutting machine tool comprises: bed 1, at least, one longitudinal guide 2, at least, two transverse guides 3, at least, two laser heads 4 and computer. Every transverse guide 2 is mounted on longitudinal guide 2 for independent displacement while every laser head 4 is mounted on transverse guide 3 for independent horizontal and vertical displacement. Drives of transverse guides and laser heads are connected to computer for independent program control thereof.

EFFECT: six-axis control over laser heads.

1 dwg

 

The technical field to which the invention relates.

This invention relates to laser cutting of materials, including metals, and in particular to a machine for laser cutting of materials and machine-readable media containing a program for controlling such a machine.

The level of technology

Currently, laser cutting materials, in particular sheet materials have found wide application in industry. At the same time to speed up the process of laser cutting machine apply machine with two laser heads, synchronously moving on both sides of the material being cut. This may be a single laser source, the beam of which is split by respective mirrors (see, for example, U.S. patent No. 6576870, publ. 10.06.2003), or two separate laser source (see, for example, patent RF №2139782, publ. 20.10.1999; U.S. patent No. 6313433, publ. 06.11.2001; patents for utility model China No. 2661357, publ. 08.12.2004, No. 201257862, publ. 17.06.2009, No. 201338160 and 201338162, both publ. 04.11.2009). This scheme allows the device to increase the cutting speed, especially in the case of relatively thick materials, but it requires precise alignment of the beams vertically and simultaneous movement of both laser heads.

Also known machine for laser cutting of materials, in which two laser beam move each other to speed up the cutting process l is Bo the formation of the complex profile of the slot (see application for U.S. patent No. 2010/0044353, publ. 25.02.2010). Known and machine, in which both heads are moving synchronously in the same direction as the ability to adjust the distance between them that allows you to simultaneously produce two equal parts (see the application form for China patent No. 101036959, publ. 19.09.2007). However, in this case, the rigid connection of the laser heads restricts the functionality of the machine.

Disclosure of inventions

The purpose of the present invention is to extend the functionality by providing the ability for independent work of two or more laser heads on the same machine.

To achieve this goal in the first object of the present invention proposed a machine for laser cutting of materials, comprising: a base; at least one longitudinal guide, each of which is mounted on a base; at least two cross rails, each of which is installed on at least one of the longitudinal guides with the possibility of independent movement along this longitudinal guide through its own longitudinal displacement drive of the cross-rail; at least two laser heads, and on each of the cross rails installed in at least one of the laser heads with the possibility of independent movement on atocopherol guide by its own drive horizontal movement and a private drive vertical movement; computing means, connected to all the drives horizontal movement of the laser head, all drives vertical movement of the laser head and all actuators move the cross-rail and which is performed with the opportunity for independent software control each of the actuators horizontal movement of the laser head, drives the vertical movement of the laser head and drives the longitudinal displacement of the cross-rail, with each of the actuators of longitudinal movement of the cross rail, each of the actuators horizontal movement of the laser head and each of the actuators vertical movement of the laser head is made in the form of a linear motor that is installed along the corresponding guide.

Another feature of the machine according to the present invention is that in case one longitudinal rail and two transverse rails with one laser head, each of the computing means is configured to shestiseriynogo control both laser heads.

To achieve the same goal in the second object of the present invention proposed a machine-readable medium, intended for direct participation in the computing means disclosed above machine and contains software is mu which when executing in said computing means provides independent control of each of the actuators of longitudinal movement of the cross rail, each of the actuators horizontal movement of the laser head and each of the actuators vertical movement of the laser head.

In the case when the machine contains one longitudinal guide, and two cross rails with one laser head each specified program when executing in said computing means can provide testicardines control of both laser heads.

Brief description of drawings

The invention is illustrated in the drawings, in which identical elements are denoted by the same reference position.

Figure 1 shows a perspective view of a variant of implementation of the machine for laser cutting of materials according to the present invention.

Figure 2 is a front view of the machine of figure 1.

Figure 3 shows the individual components of the machine of figure 1.

Detailed description of embodiments of the invention

The present invention can be implemented, for example, in the form of a machine for cutting sheet material, shown in the accompanying drawings.

As can be seen from figure 1, a machine for cutting materials under this option, the implementation has a base 1 on which the gesture is fixed on the longitudinal guide rail 2. It should be borne in mind that shown in the drawings, the option exercise machine of the present invention is only illustrative and not restrictive. In particular, the longitudinal guides can be, for example, two that are installed parallel to one another. The name of this guide is given to emphasize their length along the base 1, which generally has an elongated shape.

As can be seen from figure 1-3, on the longitudinal rail 2 mounted transverse rails 3. The following drawings show two cross rails 3, however, their number may be different. For example, in one longitudinal rail 2 can be installed three cross rails 3. Each of the cross rails 3 installed on the respective longitudinal rail 2 with the possibility of independent movement along this longitudinal guide 2. Such movement is provided by its own longitudinal displacement drive of the transverse groove (not shown), which is a linear motor mounted along the respective longitudinal guide 2.

In the drawings, both shown cross rails 3 installed so that each of the actuators longitudinal movement of the transverse guide assumes placed on the lower side of prodelin the second guide rail 2 (see figb). This, however, is not mandatory. For example, if the transverse guide rail 3 is made with bracket covering the longitudinal guide 2, the longitudinal displacement drive of the cross-rail can be placed on the top side of the longitudinal rail 2. The specific implementation of the suspension longitudinal rail 2 and the placement of longitudinal displacement drive of the cross-rail are determined by the location and design features of the machine, easy maintenance, etc.

As can be seen from the drawings, each cross-rail 3 includes a laser head 4 mounted with the possibility of independent movement on this cross-rail 3. Such movement is provided by a private drive horizontal movement and a private drive vertical movement (not shown), each of which is executed in the same manner as described above, the longitudinal displacement drive of the cross-rail. The possibility of horizontal movement of the laser head 4 along the transverse guide rail 3 and chose the last name, because such movement occurs across the longitudinal direction of the guide 2.

It should be borne in mind that one cross-rail 3 can be installed in two or more laserhairremoval 4, having each one its own drive horizontal movement and the vertical drive movement. For example, two laser heads 4 can be located on the opposite shoulders of one transverse guide 3.

As can be seen in figure 2, transverse rails 3 can be one against another in such a position that the laser head 4 was located within the maximum displacement L in the longitudinal direction. Typically, this distance L machines for cutting sheet material meets (or even exceeds) the longitudinal size of the sheet 5 of the cut material.

Not shown the other elements of the machine of the present invention, in order not to obscure the drawings and not to complicate the description. Of course, the machine of the present invention contains all the components necessary to perform cutting materials, such as sheet material 5, as shown in figure 1. All such components not shown may be performed, for example, according to the Russian patent for useful model №86129 (publ. 27.08.2009). In particular, the laser head 4 may be such as disclosed in the patent of Russian Federation №2266802 (publ. 27.12.2006).

The use of multiple (at least two) laser head 4 moving each of its transverse guide 3, allows you not only to speed up the cutting process,but provides the ability to simultaneously cut multiple parts or holes from a single sheet 5 or more sheets. To implement this capability, each head must move along its trajectory (three coordinates), which serve as its own drive horizontal movement and a private drive vertical displacement and longitudinal displacement drive of the cross-rail of the respective transverse guide rail 3. These drives are controlled using appropriate computational means (not shown), for example, a device with a numerical control or programmable controller, processor, computer, etc. all drives horizontal movement of the laser head and all drives vertical movement of the laser head for each of the laser heads 4, and all actuators longitudinal displacement of the cross-rail for each of the cross rails 3 are connected to a computing means, which is performed with the opportunity for independent software control each of the actuators horizontal movement of the laser head, drives the vertical movement of the laser head and drives the longitudinal displacement of the cross-rail for simultaneous execution of multiple (at least two separate sections.

In particular, when the machine contains one longitudinal guide, and two cross rails with one laser is the head of each, the specified program when executing in said computing means can provide testicardines control of both laser heads, i.e. the management of the three coordinates for each laser head 4.

For operation (programming) of such computational tools can be used in computer-readable media designed for direct participation in the work of this computing means and containing a program, which when executed in the above-mentioned computing means provides independent control of each of these drives. The specific type used in this program is defined as the desired trajectory of the cutting, and the used programming language.

Software management tools that address these problems are known, for example, of the above-mentioned patent RF №86129. However, all known control systems, as all known machines for laser cutting, are intended for cutting only one part or one hole, while the machine of the present invention enables two or more laser heads on the same machine to operate independently from each other. This dramatically increases the speed of processing and (or) allows to get the details (holes) of various shapes, which extends the functionality of the machine.

The work machine according to the present invention is apparent from the above description. Sheet 5 of material is deposited on the base 1. In computational tool is introduced, the corresponding program, into which all lines of the required sections to cross rails 3 and the laser head 4 during its movement in the process in any case not experienced. These movements parallel to the plane of the sheet 5 (i.e. two-dimensionally) is carried by the actuator longitudinal displacement of the cross-rail and drives the horizontal movement of the laser head.

For example, if sheet 5 need to cut the door with the window, the sharp management program can be designed to first one (say, the left in figure 1 and 2) laser head 4.1 cut through the top door, and then passed to the cutting of one of the sides. At the same time, the second (right in figure 1 and 2) laser head 4.2 first cuts the window, especially its upper part, and then, upon completion of the cutting window, the second (right) laser head 4.2 starts around mid to penetrate the side (the one that already cuts through the first laser head 4.1) and then goes on to cutting the bottom side. At this time, the first cylinder 4.1 ceases to penetrate his side, moves to the other side of the parties is in that place, where the cutting was started the second (right) laser head 4.2, and cuts this side until the end, in the direction already cut the upper side of the door. The second laser head 4.2, after cutting the bottom side of the door is transferred to the cutting of the side, which remained nepropitannoy due to movement of the first laser head 4.1, and ends up cutting this side. The result is that both cross rails 3 does not face in the process, and the cutting time is reduced by more than doubled considering the fact that when cutting on a normal machine with one laser head needs some time on unproductive move the laser head from one section to another. As in the machine of the present invention when moving one cross-rail 3 with the corresponding laser head 4 is another laser head 4 can continue cutting sheet 5.

Of course, if necessary, non-cutting material any laser head 4 can be moved in height (i.e. the third coordinate) with the help of his drive vertical movement of the laser head.

Thus, in the above embodiment is performed simultaneously testicardines control of two laser heads, it just enhances the functional capacity is her as well as the acceleration of the cutting process.

As already noted, the description together with the drawings is not intended to limit the present invention disclosed variants of implementation. Scope of the present invention is defined by the attached claims with regard equivalents included in its independent item attributes.

1. Machine for laser cutting of materials containing base, at least one longitudinal guide, each of which is mounted on a base, at least two cross rails, each of which is installed on at least one of the longitudinal guides with the possibility of independent movement along this longitudinal guide through its own longitudinal displacement drive of the cross-rail, at least two laser heads, and on each of the cross rails installed in at least one of the laser heads with the possibility of independent movement on this cross-rail by means of its own drive horizontal movement and a private drive vertical displacement computing means that is connected to all the drives horizontal movement of the laser head, all drives vertical movement of the laser head and all actuators move the transverse direction of the Commissioner, and which is performed with the opportunity for independent software control each of the actuators horizontal movement of the laser head, drives the vertical movement of the laser head and drives the longitudinal displacement of the cross rail, each of the actuators of longitudinal movement of the cross rail, each of the actuators horizontal movement of the laser head and each of the actuators vertical movement of the laser head is made in the form of a linear motor that is installed along the corresponding direction of movement.

2. The machine according to claim 1, in which, in the case of one longitudinal rail and two transverse rails with one laser head, each of the computing means is configured to shestiseriynogo control both laser heads.



 

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