JPH10137943A - Hot working device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a hot working device arranged with a dust collecting device in which a dust collecting efficiency is not reduced in working a large size steel plate. SOLUTION: The hot working device 1, which is provided with a plate support body 17 to support a plate W at an interval, a plate working table 3 and an X, Y axis positioning device 7 locating above the plate working table and freely positioning at any position of the plate, is provided with the dust collecting device 11, which is located under the plate working table and is arranged with a dust collecting hole 9 following movement of a working head.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to a thermal processing apparatus such as a plasma processing apparatus or a laser processing apparatus.

[0002]

2. Description of the Related Art Large steel plates (for example, about 3 mx 10 m)
In a thermal processing device such as a laser processing device or a plasma processing device of a fixed workpiece that processes a workpiece, a plurality of dust collection ports connected to an exhaust fan are provided adjacent to the entire area below the work table, As it moves, the damper of the duct of the dust collection port located below the processing head is opened, and the dampers of the other dust collection ports are closed, so that only the dust collection port located below the processing head performs the dust collection action. I try to make it.

[0003]

In the above-mentioned thermal processing apparatus, a plurality of divided dust collecting ports are provided in the entire area below the work table, and only the damper of the duct of the dust collecting port located below the processing head is opened. Although the dust collection function is performed to improve the dust collection efficiency, the excess air is still sucked from a considerably wide area, so that the shortage of the dust collection capability is a problem.

In order to improve the dust collection capacity, it is possible to increase the capacity of the exhaust fan to cope with the problem. However, this is because a large amount of excess air is sucked from other than the processing portion, and the dust collection efficiency is improved. Does not lead to The present invention has been made to solve the above-mentioned problems, and an object of the present invention is to provide a large steel plate (for example, about 3 m × 10 m).
An object of the present invention is to provide a thermal processing apparatus provided with a dust collecting device that does not lower the dust collecting efficiency even in processing such as.

[0005]

According to a first aspect of the present invention, there is provided a thermal processing apparatus, comprising: a plate processing table provided with a plate support for supporting the plate at intervals; In a thermal processing apparatus provided with an X-axis and Y-axis positioning device capable of positioning a processing head at an arbitrary position of the plate material above a table, a dust collecting port provided with a dust collection port for following the movement of the processing head. The gist is that a dust device is provided below the plate processing table.

Therefore, when performing the cutting process,
Since the dust collection port is moved to follow the movement of the processing head,
Dust can be collected efficiently without sucking extra air from portions other than the processing portion.

According to a second aspect of the present invention, there is provided a thermal processing apparatus.
In the thermal processing apparatus according to the above, the dust collecting apparatus is provided with the Y
A movable duct extending in a direction parallel to the axis; a movable duct provided in the U-axis direction parallel to the X-axis; and a dust collection port movable in the Y-axis direction on the movable duct. Wherein the open end of the movable duct is inserted into an opening of a fixed duct extending in the U-axis direction and provided, and the fixed duct communicates with an exhaust fan. .

[0008] The thermal processing apparatus according to the third aspect is the second aspect.
Wherein the screw conveyor is provided in the movable duct, and the cut pieces dropped into the movable duct can be discharged from an open portion at one end of the movable duct.

Therefore, according to the thermal processing apparatus of the second or third aspect, it is possible to move the dust collection port to the processing head which can be positioned at an arbitrary position on the plate material, and to process the plate material. Dust such as harmful gas and spatter generated from the section can be sucked from the dust collection port and discharged from the exhaust fan via the movable duct and the fixed duct.
Further, the cut pieces falling into the movable duct can be automatically carried out from the movable duct into the fixed duct.

[0010] The thermal processing apparatus according to the fourth aspect is the third aspect.
Wherein the plurality of drawers for accommodating cut pieces discharged from the screw conveyor are provided in the fixed duct. Therefore, the cut pieces accumulated in the drawer can be appropriately and easily taken out.

[0011]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a perspective view, partially cut away, of an example of a plasma processing apparatus as an example of a thermal processing apparatus according to the present invention. 2 is a partially enlarged view in which a part of FIG. 1 is deleted, and FIG. 3 is a view as viewed from an arrow A in FIG. FIG. 4 is a sectional view taken along the line IV-IV in FIG.

Referring to FIGS. 1 to 4, the main configuration of the plasma processing apparatus 1 is a plate processing table 3, which is placed above the plate processing table 3 and mounted on the plate processing table 3. An X, Y axis positioning device 7 capable of positioning the plasma processing head 5 at an arbitrary position of the plate material W,
A dust collecting device 11 and the like are provided below the plate processing table 3, and the dust collection port 9 moves following the movement of the plasma processing head 5.

The plate processing table 3 comprises a rectangular table frame 13 and four columns 15 for supporting the table frame 13. The table frame 13 has a plate support 17 for supporting the plate W. It is attached detachably. As the plate support 17, for example, a combination of steel plates in a lattice shape or a combination of honeycomb shapes is used. Therefore, when the cut product is smaller than the grid, the product falls down from the plate support 17. Further, harmful gas or spatter generated at the time of cutting also scatters downward from the plate support 17. In addition,
In FIG. 1 and FIG. 2, only a part of the plate support 17 is shown in order to show components below the plate support 17.

The X, Y-axis positioning device 7 includes an X-axis carriage 19 having a rectangular cross section that moves in the X-axis direction,
A Y-axis carriage 21 that moves in the Y-axis direction orthogonal to the axial direction. The Y-axis carriage 21 is a gate-shaped side provided on both outer sides of the plate processing table 3 along the X-axis direction. Beam members 25A of the frames 23A and 23B,
It is movably provided on X-axis guide rails 27A, B laid on the upper surface of 25B. Also, the Y-axis carriage 21
It is movably provided on a Y-axis guide rail 29 laid on the side surface of the X-axis carriage 19.

The beam member 25A of the side frame 23A
An X-axis drive motor 31 for driving the X-axis carriage 19 is provided on one side surface of the beam member 25A in the X-axis direction.
A driven sprocket 33 is rotatably provided on the other side surface. A chain 37A is looped between a driving sprocket 35 provided on an output shaft of the X-axis driving motor 31 and the driven sprocket 33.

Similarly, a drive sprocket 36 is provided on one side surface of the beam member 25B in the X-axis direction. A connection shaft 38 is provided between the drive sprocket 36 and the output shaft of the X-axis drive motor 31. It is connected with. A driven sprocket 40 is rotatably provided on the other side surface of the beam member 25B, and a chain 37B is looped between the driving sprocket 36 and the driven sprocket 40. The upper running portions of the chains 37A and 37B and the X-axis carriage 19 are connected by appropriate fastening means such as bolts.

By driving the X-axis drive motor 31 under the control of a control device (not shown),
The X-axis carriage 19 can be moved and positioned at an arbitrary position in the X-axis direction.

A Y-axis guide rail 29 is laid on the side surface of the X-axis carriage 19, and the Y-axis carriage 21 is provided movably in the Y-axis direction by the Y-axis guide rail 29. Further, the Y-axis carriage 21 is provided with a Y-axis drive motor 39, and a pinion gear 43 provided on the output shaft of the Y-axis drive motor 39 is provided in the Y-axis direction provided on the side surface of the X-axis carriage 19. It is engaged with the extended rack 41.

By driving the Y-axis drive motor 39 under the control of the control device (not shown), the Y-axis carriage 21 can be moved and positioned at an arbitrary position in the Y-axis direction. Therefore, by appropriately driving the X-axis drive motor 31 and the Y-axis drive motor 39, the plasma processing head 5 provided on the Y-axis carriage 21 can be moved to any position on the plate material W placed on the plate processing table 3. Can be positioned.

The Y-axis carriage 21 is provided with a Z-axis drive motor (not shown) and a Z-axis guide rail (not shown) provided in a direction orthogonal to the X and Y axes. A Z-axis carriage 22 is movably provided on a Z-axis guide rail (not shown).

In the above configuration, by driving a Z-axis drive motor (not shown) under the control of the controller, the Z-axis carriage 22 can be moved and positioned at an arbitrary position in the Z-axis direction. The plasma processing head 5 is provided below the Z-axis carriage 22.

Therefore, by controlling the three axes of X, Y, and Z described above, the plasma processing head 5 can be positioned at any position on the plate material W, and the plasma processing head 5 can be positioned at an appropriate distance from the plate material. The configuration of the dust collecting device 11 capable of positioning the processing head 5 will be described below. As described above, the main configuration of the dust collecting device 11 is such that the dust collecting port 9 that moves following the movement of the plasma processing head 5 is provided below the plate processing table 3,
The harmful gas and spatter from the moving dust collection port can be discharged to a fixed duct communicating with the exhaust fan.

Further, as will be described in detail, as shown in FIG. 2, between the two columns 15 of the plate processing table 3 along the X-axis direction, side plates 47 are respectively provided.
A and 47B are provided. And these side plates 47A, 4
The U-axis guide rails 49A and 49B are provided outside the 7B, respectively.
B is provided with U-axis slides 51A and 51B that are engaged with and guided by U-axis guide rails 49A and 49B.
Each of the U-axis slides 51A and 51B is provided with a semicircular support 53 which is open upward.
Both ends of a cylindrical movable duct 55 extending in the axial direction are supported and fixed. The U axis and the V axis represent second plane coordinate axes parallel to the X axis and the Y axis, respectively.

A U-axis drive motor 5 for driving the movable duct 55 is provided on one side of the side plate 47A in the X-axis direction.
7 is provided. A drive sprocket 59 is provided on the output shaft of the U-axis drive motor 57.
A driven sprocket 61 is rotatably provided on the other side of A in the X-axis direction. A chain 63 is looped between a driving sprocket 59 provided on the output shaft of the U-axis driving motor 57 and the driven sprocket 61. The upper running portion of the chain 63 and the U-axis slide 51A are connected by an appropriate fastening means.

On the U-axis slide 51B on the side plate 47B side of the movable duct 55, similarly to the side plate 47A side, the upper side of a chain 66 looped between a driving sprocket 62 and a driven sprocket 64 provided on the side plate 47B. The traveling portion and the U-axis slide 51B are connected by appropriate fastening means. In addition. The sprocket 61 and the sprocket 62 are connected by a connecting shaft 68.

With the above configuration, the movable duct 55 can be moved and positioned at an arbitrary position in the U-axis direction by driving the U-axis drive motor 57 under the control of the control device (not shown).

An opening 65 extending parallel to the V axis is provided on the upper surface of the tubular movable duct 55, that is, on the side facing the plate support 17. The length of the opening 65 is substantially equal to the width of the plate processing table 3 in the Y-axis direction. A V-axis guide rail 67 is provided on both sides of the opening 65. The V-axis guide rail 67 has a dust collection port support 6 having the dust collection port 9.
9 is provided movably.

A V-axis drive motor 71 is provided on one side surface of the movable duct 55 in the longitudinal direction. A driven sprocket 73 is rotatably provided on the other side of the movable duct 55. The driven sprocket 73 and the V
A chain 77 is wound around the drive sprocket 75 provided on the output shaft of the shaft drive motor 71, and the upper running portion of the chain 77 and the dust collecting port support 69 are connected by appropriate fastening means. is there. In addition, one end of a retractable cover 79 such as a bellows is attached to the dust collection port support 69 and the other end of the cover 79 is attached to the movable duct 55 in the front and rear openings 65 of the dust collection port support 69. is there. 1 and 2, the illustration of one side of the cover 79 is omitted.

In the above configuration, by driving the V-axis drive motor 71 under the control of the control device (not shown), the dust collecting port support 69 can be moved and positioned at an arbitrary position in the V-axis direction. . That is, the dust collection port can be moved and positioned at an arbitrary position in the V-axis direction. When the dust collecting port support 69 moves in the V-axis direction, the extensible cover 79 moves together with the dust collecting port support 69, so that the front and rear openings 65 of the dust collecting port support 69 are always shielded. State.

Accordingly, the U-axis drive motor 57 and the V-axis drive motor 71
By appropriately driving the dust collecting port support 69,
Can be moved immediately below the plasma processing head 5.

As is apparent from FIGS. 1 and 3, a box-shaped fixed duct 81 extending in the U-axis direction is attached to the side of the side frame 23A. The duct 81 is connected to an exhaust pipe 85 communicating with an exhaust fan 83. The movable duct 5 is attached to the fixed duct 81 on the side of attachment to the side frame 23A.
There is provided an opening 89 extending in the U-axis direction into which the open end 87 of the fifth unit 5 can be inserted. The open end 87 of the movable duct 55 extends through the opening 89 into the fixed duct. In addition, before and after the movable duct 55 in the opening 89 of the fixed duct 81, the dust collecting port support 69 is provided.
A telescopic cover (not shown) is provided, such as a bellows as employed in (1).

In the above configuration, when performing the plasma cutting process, the dust collection port 9 is connected to the plasma processing head 5.
Harmful gas and dust such as spatters generated during the cutting process can be discharged from the blower 83 via the dust collection port 9, the movable duct 55 and the fixed duct 81. . In addition, since the movement of the dust collection port 9 is always controlled to be directly below the plasma processing head 5, the dust collection is performed very efficiently without sucking extra air from portions other than the processing portion. be able to.

Further, a well-known screw conveyor (not shown) is rotatably provided inside the tubular movable duct 55, and a screw conveyor is provided at an end opposite to the open end 87 of the movable duct 55. A conveyor drive motor 91 for driving the conveyor to rotate is provided. Therefore, a small cut piece falling into the movable duct 55 from the dust collection port 9 in the plasma cutting process can be discharged from the open end 87 to the outside by rotating the screw conveyor.

The fixed duct 81 is provided with a plurality of drawers 93 for accommodating small cut pieces discharged from the open end 87 of the movable duct 55 to the outside. Therefore, by pulling out the drawer 93, small cut pieces accumulated in the drawer 93 can be appropriately and easily taken out.

Although the plasma processing apparatus has been described as an example of the thermal processing apparatus, as will be easily understood from the above description, the technology of the present invention is applied to other thermal processing apparatuses such as a laser processing apparatus. Even with this, the same operation and effect can be obtained.

[0036]

According to the first, second, third or fourth aspect of the present invention, the dust collecting port is moved so as to follow the movement of the processing head when performing the cutting processing. Therefore, it is possible to efficiently collect dust without sucking extra air from portions other than the processing portion. as a result,
The required output of the exhaust fan for the dust collector is small, which saves power and cost. In addition, the cut pieces falling into the movable duct are automatically carried out of the movable duct into the fixed duct, and are accommodated in the drawer for accommodating the cut pieces provided in the fixed duct. Can be taken out.

[Brief description of the drawings]

FIG. 1 shows an example of a thermal processing apparatus according to the present invention.
BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 shows an example of a plasma processing apparatus in a partially cutaway perspective view.

FIG. 2 is a partially enlarged view in which a part of FIG. 1 is deleted.

FIG. 3 is a view taken in the direction of arrow A in FIG. 1;

FIG. 4 is a sectional view taken along the line IV-IV in FIG. 3;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Plasma processing apparatus 3 Plate processing table 5 Plasma processing head 7 X and Y-axis positioning device 9 Dust collecting port 11 Dust collecting device 13 Table frame 15 Support 17 Plate support 19 X-axis carriage 21 Y-axis carriage 22 Z-axis carriage 23 (A, B) Side frame 25 (A, B) Beam member 27 (A, B) X-axis guide rail 29 Y-axis guide rail 31 X-axis drive motor 33 driven sprocket 35 drive sprocket 37 (A, B) chain 38 connection Shaft 39 Y-axis drive motor 41 Rack 40 Follower sprocket 43 Pinion gear 47 (A, B) Side plate 49 (A, B) U-axis guide rail 51 (A, B) U-axis slide 53 Semicircular support section 55 Movable duct 57 U-axis drive motor 59 drive sprocket 61 driven sprocket 62 drive Sprocket 63 chain 64 driven sprocket 65 opening 66 chain 67 V-axis guide rail 68 connecting shaft 69 dust collecting port support 71 V-axis driving motor 73 driven sprocket 75 driving sprocket 77 chain 79 cover 81 fixed duct 83 exhaust fan 85 exhaust pipe 87 opening End 89 Opening 91 Conveyor drive motor 93 Drawer W Plate

Claims (4)

[Claims] 1. A plate processing table provided with a plate support for supporting a plate at intervals, and X, Y, which is located above the plate processing table and is capable of positioning a processing head at an arbitrary position on the plate. A thermal processing apparatus provided with a shaft positioning device, wherein a dust collecting apparatus having a dust collecting port following the movement of the processing head is provided below the plate processing table. 2. The dust collecting device according to claim 1, further comprising: a cylindrical movable duct extending parallel to the Y axis.
In addition to being provided movably in the U-axis direction parallel to the axis, a dust collection port movable in the Y-axis direction was provided on the movable duct, and the open end of the movable duct was provided so as to extend in the U-axis direction. The thermal processing apparatus according to claim 1, wherein the fixed duct is provided to be inserted into an opening of the fixed duct, and the fixed duct communicates with an exhaust fan. 3. A heat conveyor according to claim 2, wherein a screw conveyor is provided in said movable duct, and cut pieces dropped into said movable duct can be discharged from an open portion at one end of said movable duct. Processing equipment. 4. The thermal processing apparatus according to claim 3, wherein a plurality of drawers for accommodating cut pieces discharged from the screw conveyor are provided in the fixed duct.