JPH0733458U - Work table of heat cutting machine - Google Patents

Abstract

(57) [Summary] [Purpose] To enable efficient removal of dross attached to the back surface of a work. A thermal cutting machine for cutting a work 6 with the processing head 4 while moving the work 6 placed on the work table body 2 in a direction orthogonal to the moving direction of the processing head 4. On top of the body 2,
The roll brush 10 for removing the dross attached to the back surface of the work 6 is rotatably provided. Since the work 6 does not move up and down due to the attached dross, highly accurate cutting can be performed.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 This invention relates to a work table of a thermal cutting machine such as a laser machine or a plasma machine.

[0002]

[Prior art]

 BACKGROUND ART Conventionally, there is a thermal cutting machine that cuts a work using a laser or plasma by moving the work in a direction orthogonal to the moving direction of the processing head to cut the work. For example, Japanese Utility Model Laid-Open No. 4-603803, Japanese Patent Laid-Open No. 4-361890, and the like.

[0003]

[Problems to be solved by the device]

 However, in this type of thermal cutting machine, the dross generated during cutting adheres to the back surface of the work and solidifies.Therefore, when the work moves, the work moves up and down due to the dross that adheres, resulting in the distance between the machining head and the work. Fluctuated, the cutting quality deteriorated, and defective cutting occurred.

In order to prevent such a problem, it has been proposed that a fixed brush is provided on the work table to remove dross attached to the back surface of the work, but in the case of a fixed brush, the dross scraped off is fixed. However, there is a problem that the removal effect is reduced early because they are accumulated in the brush, the life of the brush is short, and it becomes a resistance when moving the work, so that a moving device with a larger capacity is required. The present invention has been made in order to improve such a problem, and an object thereof is to provide a work table of a thermal cutting machine capable of efficiently removing dross and the like adhering to the back surface of a work.

[0005]

[Means for Solving the Problems]

 In order to achieve the above-mentioned object, the present invention achieves the above-mentioned object by moving a workpiece mounted on a work table main body in a direction orthogonal to the moving direction of the processing head by the processing head. In the thermal cutting machine for cutting the work, a roll brush is rotatably provided above the work table.

[0006]

[Work]

 With the above configuration, the dross and the like attached to the back surface of the work can be efficiently removed by the roll brush, so that the work does not move up and down during cutting.

[0007]

【Example】

 An embodiment of the present invention will be described in detail with reference to the drawings. 1 is a perspective view of a thermal cutting machine, FIG. 2 is a plan view of a work table, and FIG. 3 is a sectional view taken along the line AA of FIG. In FIG. 1, 1 is a thermal cutting machine, 2 is a work table main body of the thermal cutting machine 1, 3 is a substantially inverted L-shaped column that is extended above the work table main body 2, and is located below the column 3. , A processing head 4 is provided so as to be movable in the Y-axis direction. As shown in FIGS. 2 and 3, the work table main body 2 is provided with a large number of horizontal rods 5 spaced in the Y-axis direction in the X-axis direction orthogonal to the Y-axis. A large number of rollers 7 that support the work 6 to be cut from below are rotatably attached.

A space 8 without a horizontal rod 5 is provided below the column 3 in the moving direction of the processing head 4, and a pair of spaces 8 are arranged in the space 8 on both sides of a moving line 9 of the processing head 4. The roll brush 10 is provided along the moving line 9. The shaft 10a of each roll brush 10 is supported by the work table body 2 via a bearing 12, and gears 13b and 13c meshing with each other are provided on each shaft 10a via a pair of intermediate gears 13a. . A drive motor 14 is connected to the shaft 10a of one of the roll brushes 10 via an endless belt 15 so that each roll brush 10 can be rotated in the opposite direction by the drive motor 14.

Reference numeral 16 in FIG. 1 denotes a plurality of clampers for clamping the work 6 on the work table body 2 and moving the work 6 in the X-axis direction. The roll brush 10 may be continuously rotated by the drive motor 14 or may be intermittently rotated, and the roll brush 10 may be rotated in the same direction. Further, a detaching mechanism may be provided at both ends of the roll brush 10 so that when the brush is worn, it can be easily replaced, and the shape of the column 1 may be circular or any other shape.

Next, the operation will be described. The work 6 carried into the work table body 2 is clamped by the clamper 16 and moved in the X-axis direction, and is cut by the processing head 4 moved in the Y-axis direction. To be done. In addition, since the roll brush 10 is rotated by the drive motor 14 during the cutting process, even if the dross generated during cutting adheres to the back surface of the work 6, when the work 6 is moved in the X-axis direction, it is rotated. The work 6 does not move up and down due to dross while the work 6 is moving, and the dross scraped off by the roll brush 10 is moved downward by the rotation of the roll brush 10. And is discharged from the dust collecting port 2a of the processing head 4. It should be noted that the roll brush 10 may be any one in which brush bristles are planted in the circumferential direction, the axial direction, or the spiral direction.

[0011]

[Effect of device]

 As described in detail above, this invention has a work table body on which a work to be cut is placed, and a rotating brush that slides on the back surface of the work while rotating and removes the dross and the like adhering to the back surface of the work during cutting. Therefore, even if the work is moved during cutting, the work does not move up and down. As a result, the distance from the processing head to the workpiece does not change, so cutting quality is less likely to occur and defective cutting is less likely to occur. Further, since the dross scraped off from the work does not fall and accumulate in the roll brush as the roll brush rotates, there is no problem that the removal effect is reduced early by the roll brush or the life is shortened. Further, since the roll brush makes line contact with the work, the movement resistance of the work does not increase, which allows the work to be easily moved by a small-capacity drive source.

[Brief description of drawings]

FIG. 1 is a partially cutaway perspective view of a thermal cutting machine that employs a work table according to an embodiment of the present invention.

FIG. 2 is a plan view of a work table according to an embodiment of the present invention.

3 is a sectional view taken along the line AA of FIG.

FIG. 4 is a view from the direction B in FIG.

[Explanation of symbols]

2 ... Work table body, 4 ... Processing head, 6 ... Work, 10 ... Roll brush.

Claims (2)

[Scope of utility model registration request] 1. A thermal cutting machine for cutting a work 6 by the working head 4 while moving the work 6 placed on the work table body 2 in a direction orthogonal to the moving direction of the working head 4. A work table of a thermal cutting machine in which a roll brush 10 is rotatably provided on the work table body 2. 2. The work table according to claim 1, wherein the roll brush 10 is rotationally driven by a rotational driving means.