RU207442U1 - LASER CUTTING MACHINE WITH ACCESS TO THE WORKING AREA - Google Patents

Abstract

The utility model relates to machines for laser cutting material with access to the working area. 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, covered with a protective casing 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 doors are fixed in the upper part of the casing with hinges and consist of two parts located at right angles to each other and joined by hinges. The technical result consists in providing increased structural reliability. 8 p.p. f-ly, 2 dwg

Description

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

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 an enclosed 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 access to the working area, including a bed, a work table, longitudinal and transverse guides, rollers, a crosshead, 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 frame, to the working table, a traverse is fixed with rollers on longitudinal guides, 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 its movement is installed on a transverse guide directly inside the protective casing , characterized in that the doors are fixed in the upper part of the casing by means of hinges, while the doors consist of two parts located at right angles to each other and joined by means of hinges.

The laser cutting machine, in particular, can be characterized in that the hinges are located at the edges of the door, and can additionally contain hinges located in the middle of the door.

A laser cutting machine, in particular, can be characterized in that the hinges are equipped with a position lock.

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 by the fact that the crosshead is fixed to the casing by means of a bolt connection.

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

A laser cutting machine, in particular, can be characterized by the fact 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 representation of a machine with open doors, FIG. 2 schematically shows a machine with closed doors, 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. hinges;

12.doors.

The presented laser cutting machine with access to the working area 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 a traverse (6) fixed to them by means of rollers (5). The traverse, with the help of fasteners, is rigidly 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 protective casing is equipped with doors (12) for access to the working area, fixed with hinges (11).

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 base can be located 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 on it, rigidly fixed 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.

The casing can be fixed to the traverse, including by means of a bolted connection, which ensures its high maintainability due to the possibility of uncomplicated removal of the fasteners, which in turn further increases the degree of reliability of the structure. In addition, the casing can be fixed to the crosshead either with a riveted joint or with a welded joint, which in both cases provides a reliable rigid connection. The choice of the type of welding connection (continuous or spot) allows for optimal fastening, including, depending on the standard size of the machine, its equipment, etc.

In order to increase the maintainability of the machine (and, according to GOST 27.002 2015 Reliability in technology and increase its reliability), the machine contains access to the working area. Access is by means of doors fixed to the top of the casing with hinges. In this case, the hinges can be equipped with position latches, which provides unhindered access to the mechanisms located under the casing, and increases the manufacturability of the machine maintenance. The hinges can be located both along the edges of the door, and additionally located in the middle part of the door. Undoubtedly, an increase in the number of hinges held by the door leads to an increase in reliability (for example, in the event of failure of any of the hinges). Also, in order to improve maintainability and reliability, the doors consist of two parts located at right angles to each other and joined by hinges. This ensures the reliability of access to the working area of the machine, for example, in the event of failure or failure of any group of hinges. Either, depending on the requirements for the repair being performed, it is possible to obtain partial (when opening part of the door) or full (when opening the entire door) access to the working area.

The inventive laser cutting machine with access to the working area 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 with a protective cover, moves. Despite the compactness of the protective casing, laser radiation does not leave its limits. If it is necessary to access the working area, the door / part of the door is lifted and locked in the open position using the latch. After work, the door returns to its original position in order to prevent radiation from leaving the working area.

Thus, the use of a door fixed to the casing by means of hinges in the construction of a laser machine makes it possible to achieve the claimed technical result, namely, increased reliability of the structure.

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 (9)

1. A laser cutting machine with access to the working area, containing 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, while the work table is fixed on the bed and it with the help of rollers on the 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, and the laser cutting head with a mechanism for its movement is installed on a transverse guide inside the protective casing, characterized in that the traverse is rigidly fastened is attached to the protective casing, and the doors are fixed in the upper part of the casing with hinges, while the doors consist of two parts located at right angles to each other and joined by hinges. 2. A laser cutting machine according to claim 1, characterized in that the hinges are located at the edges of the door. 3. Laser cutting machine according to claim 1, characterized in that the hinges are located at the edges of the door and in the middle of the door. 4. Laser cutting machine according to claim 1, characterized in that the guides are made in the form of a paired rail. 5. Laser cutting machine according to claim 1, characterized in that the casing is made with slots for corresponding guides. 6. Laser cutting machine according to claim 1, characterized in that the sides of the casing are rounded at the corners. 7. Laser cutting machine according to claim 1, characterized in that the traverse is fixed to the casing by means of a bolted connection. 8. Laser cutting machine according to claim 1, characterized in that the traverse is fixed to the casing by means of a riveted connection. 9. Laser cutting machine according to claim 1, characterized in that the traverse is fixed to the casing by means of a welding joint.

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