RU203177U1 - LASER CUTTING MACHINE WITH SPRING DAMPER - Google Patents

Abstract

The utility model relates to a spring damped laser cutting machine. The machine contains a bed, a work table, longitudinal and transverse guides, rollers, a traverse, a frame, a protective cover, a laser cutting head and a mechanism for moving the laser cutting head. The working table is fixed on the bed. A traverse is fixed to the working table with the help of rollers on longitudinal guides. The frame is located above the work table and is covered with a protective cover with doors and viewing windows. The laser cutting head with its movement mechanism is installed on a transverse guide directly inside the protective casing. The machine contains an additional traverse. Both traverses are parallel and fixed inside the casing. At the same time, the traverses contain an additional damper, covering the traverses and representing a twisted cylindrical element, the turns of which do not touch each other. The technical result consists in providing increased structural reliability. 10 p.p. f-ly, 1 dwg.

Description

The claimed utility model relates to machine tools and, in particular, to machine tools that use laser beam processing to cut and form holes in the material.

There is a known installation for keeping laser radiation in a safe confined space (publication RU 2607295, dated 01/10/2017), containing holes located opposite on the sides through which a metal tape, a shell, a cutting or welding installation, emitting a beam of laser radiation in a confined space can be pulled , between a pair of jaws located opposite one of the sides of the tape surface, preventing radiation from passing through the two holes in the shell.

The disadvantage of the known design is low reliability.

The closest known is the protection system for the laser cutting machine (publication US 20170197280, dated 07.19.2018), including the frame, the upper protection assembly, the middle protective shield, the lower protection assembly and the laser torch head. The upper protection assembly, the middle protection assembly and the lower protection assembly are removably attached to the frame so that they form a cavity enclosing the laser head.

However, the disadvantage of the known design is also low reliability.

The purpose of the claimed utility model is to eliminate the identified drawback in order to achieve such a technical result as ensuring increased reliability of the structure.

This goal is achieved as follows: a laser cutting machine with spring dampers, including a bed, a work table, longitudinal and transverse guides, rollers, a traverse, a frame, a protective cover, a laser cutting head and a mechanism for moving the laser cutting head, where the work table is fixed on the bed, to the working table, with the help of rollers on the longitudinal guides, a traverse is fixed, while the frame is located above the working table, and the frame is covered with a protective casing equipped with doors and viewing windows, the laser cutting head with a mechanism for moving it is installed on a transverse guide directly inside the protective casing, characterized by in that the machine contains an additional traverse, so that both traverses are parallel and fixed inside the casing, at the same time the traverses contain an additional damper, covering the traverses and representing a twisted cylindrical element, while its turns do not touch each other.

A laser cutting machine, in particular, can be characterized by the fact that a rectangular shaped tube is used as a traverse.

A laser cutting machine, in particular, can be characterized in that the crosshead has a number of mounting holes.

A laser cutting machine, in particular, can be characterized by the fact that the guides are a paired rail.

A laser cutting machine, in particular, can be characterized in that the casing is provided with slots for corresponding guides.

A laser cutting machine, in particular, can be characterized by the fact that the sides of the casing are rounded at the corners.

A laser cutting machine, in particular, can be characterized in that the crosshead is fixed to the casing by means of a bolt connection.

A laser cutting machine, in particular, can be characterized in that the crosshead is fixed to the casing by means of a riveted connection.

A laser cutting machine, in particular, can be characterized in that the crosshead is fixed to the casing by means of a welding joint.

A laser cutting machine, in particular, can be characterized in that the bed is provided with support legs, while the support legs can contain an adjusting thread.

FIG. 1 is a schematic side view of the machine, FIG. 1 schematically shows the machine in isometric projection, where the numbers indicate:

1. bed;

2. desktop;

3. longitudinal guide;

4. transverse guide;

5. rollers;

6. traverse;

7.frame;

8. protective cover;

9. laser head;

10. mechanism for moving the laser head;

11. twisted cylindrical element;

12. mounting holes.

The presented laser cutting machine with rigid attachment of the protective cover is arranged as follows

A stationary work table (2) is rigidly located on the bed (1). On both sides of the body there are longitudinal guides (3) with traverses (6) fixed on them by means of rollers (5). The traverse, with the help of fasteners located in the mounting holes (12), through the twisted cylindrical element (11), is attached to the protective casing (8). Inside the protective casing, there is a frame (7) with a transverse guide (4) fixed to it, on which a mechanism for moving the laser head (10) and a laser head (9) are located.

The corners of the casing can be rounded, which forms an element similar to an arched structure that can withstand heavy loads, is less susceptible to various distortions and deformations (which can cause hazardous radiation to escape outside the casing), thus increasing the reliability of the claimed utility model.

The bed can be positioned on support legs, which can be provided with threads to facilitate the process of leveling the horizon. This eliminates distortions in the housing structure, as a result of which laser radiation could penetrate outside the protective casing. The durability of the structure increases, and, consequently (according to GOST 27.002-2015 Reliability in technology) and reliability.

The guides, in particular, can be a paired rail. This ensures reliable retention of the casing attached to the traverses, by reducing the degrees of mobility (the casing is attached at least at two points located in the same plane). In this case, the casing can be provided with slots for the corresponding guides, which facilitates its movement and increases the reliability of fixing and holding the protective casing. The slots in the protective cover can act as hooks, in the event, for example, of the cover breaking off the guides. In this case, the slots will prevent (unlike, for example, a straight wall) from holding the casing in place, providing its protective functionality.

A rectangular profile pipe can be used as a traverse. The rectangular profile contributes to ensuring reliability, at increased loads, due to the redistribution of forces and counteraction to deforming forces.

Also, the inventive design of the laser machine contains an additional parallel-located traverse, so that the traverses move along the paired guide rail. An additional traverse is designed to provide increased structural reliability. In this case, the traverses are fixed to the casing from the inside. Reliable retention of the casing over the work table is ensured by connecting the traverses to the casing. The fastening of both traverses ensures the movement of the protective casing along the guides, while maintaining a constant and reliable protection from the radiation of the laser head, in any part of the desktop. In particular, this makes it possible to minimize the dimensions of the protective casing (the lighter design of the movable mechanism ensures its greater durability), without compromising the reliability of the protection. Additionally, on each of the traverses there is a twisted cylindrical element, like a spring, fixed between the protective casing and the frame. Thus, each of the traverse contains two such elements. The location of the damper helps to reduce vibration and shock loads that occur during the operation of the machine. Reducing such loads, in turn, reduces the wear of the element base, and, therefore, increases the durability and reliability of the machine.

Increased reliability of securing the protective casing is designed to provide a number of fastening holes of the cross arm, allowing you to place the required number of fasteners that fix the protective casing most firmly, while the casing can be fixed to the cross arm, including by means of a bolted connection, which ensures its high maintainability due to the possibility of uncomplicated removal of fasteners, which in turn further increases the degree of reliability of the structure. In addition, the casing can be secured to the crosshead either with a riveted joint or with a welded joint, which in both cases provides a reliable connection. The choice of the type of welding connection (continuous or spot) allows for optimal fastening, including, depending on the size of the machine, its equipment, etc.

The inventive laser cutting machine with rigid attachment of the protective casing operates as follows

The workpiece to be processed is placed on the work table and, if necessary, is shifted to the origin. The required execution program is loaded into the machine program, and the mechanism for moving the casing in the longitudinal direction, the mechanism for moving the laser head in the transverse direction and the laser are started. The working table remains stationary, only the laser head, covered by a protective cover, moves. Despite the compactness of the protective casing, laser radiation does not leave its limits.

Thus, the use of an additional traverse in the design of a laser machine, where the traverses are fixed to the protective casing, makes it possible to achieve the claimed technical result, namely, increased structural reliability.

Industrial applicability.

The inventive machine can be widely used in the implementation of laser cutting of metals and other hard materials. Manufactured primarily at machine tool factories.

Claims (11)

1. A laser cutting machine with spring dampers, containing a bed, a work table, longitudinal and transverse guides, rollers, a traverse, a frame, a protective cover, a laser cutting head with a mechanism for its movement, while the work table is fixed on the bed, to the work table using of rollers on longitudinal guides, a traverse is fixed, and the frame is located above the work table and is covered with a protective casing with doors and viewing windows, while the laser cutting head with a mechanism for its movement is installed on a transverse guide directly inside the protective casing, characterized in that the machine contains an additional traverse, in this case, both traverses are parallel and fixed inside the casing, and the traverses contain an additional damper enclosing them, made in the form of a twisted cylindrical element, the turns of which do not touch each other. 2. The machine according to claim. 1, characterized in that the traverses are made in the form of a rectangular pipe. 3. The machine according to claim 1, characterized in that the traverses have a number of mounting holes. 4. The machine according to claim. 1, characterized in that the guides are made in the form of paired rails. 5. The machine according to claim. 1, characterized in that the casing is made with slots for the corresponding guides. 6. The machine according to claim 1, characterized in that the sides of the casing are rounded at the corners. 7. The machine according to claim 1, characterized in that the traverse is fixed to the casing by means of a bolted connection. 8. The machine according to claim 1, characterized in that the traverse is fixed to the casing by means of a riveted connection. 9. The machine according to claim. 1, characterized in that the traverse is fixed to the casing by means of a welding connection. 10. The machine according to claim 1, characterized in that the bed is made with legs. 11. The machine according to claim 10, characterized in that the legs of the bed are threaded.

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