JPH0614941Y2 - Thermal cutting machine - Google Patents

Description

[Detailed Description of the Invention] [Object of the Invention] (Industrial field of application) The present invention relates to a thermal cutting apparatus, and more specifically, it relates to a spatter or spatter generated when a pipe such as a round pipe or a square pipe is cut. The present invention relates to a thermal cutting device having a dust collector that removes dust and the like.

(Prior art) Recently, cutting pipes such as round pipes and square pipes,
Alternatively, as a cutting device for performing hole processing, a thermal cutting device having a laser processing device or a plasma processing device and a rotary support member for supporting a pipe has been developed.

The thermal cutting device including the rotation supporting member is not provided with a dust collecting device that removes spatter, dust, and the like generated when cutting the pipe supported by the rotation supporting member.

(Problems to be solved by the invention) By the way, when a pipe supported by a rotation supporting member is cut by a heat cutting device or a hole is drilled, a large amount of spatter, dust, etc. inside the pipe become extremely hot. Will adhere in a welded state. Therefore, it is very difficult to remove these spatters and dusts after processing, and there is a problem that a great number of man-hours are required.

The purpose of this invention is to improve the above-mentioned problems by blowing off spatter or dust generated during processing of the pipe or sucking it in to prevent it from adhering to the inside of the pipe. It is to provide a cutting processing device.

[Structure of the Invention] (Means for Solving the Problems) In order to achieve the above-mentioned object, the invention has a base (3).
A carriage (13) is provided on the top of which a rotary support member (21) that rotatably supports the pipe (W) to be processed is provided, and is movable in the longitudinal direction of the pipe (W) with respect to the base (3).
Is provided with a machining head (19) for thermally cutting the pipe (W) in its carriage (13), and the pipe to be machined supported by the rotation support member (21) and the rotation support member (21). The front end side of the connecting pipe (27) is inserted in the longitudinal direction of the pipe (W) substantially at the axial center of W), and the rear end side of the connecting pipe (27) is clamped and synchronized with the carriage (13). A thermal cutting device is provided in which a movable clamp (29) that moves in a static manner is provided, and a suction device (35) is provided in the clamp (29) via a stretchable connecting pipe (33).

(Operation) By adopting the thermal cutting apparatus of the present invention, the rotation support member (21) supports the pipe (W) to be processed,
When the processing head (19) performs processing such as cutting or hole processing on the pipe (W), spatter, dust, etc. are generated from the processing location. The tip end of the rotary support member (21) and the connecting pipe (27) inserted in the longitudinal direction of the pipe (W) at approximately the axial center of the pipe (W) supported by the rotary support member (21) are processed. Since it is positioned almost directly below the head (19), by operating the suction device (35), spatter, dust, etc. generated from the processing point is sucked from the tip of the connecting pipe (27) and sucked by the suction device (35). ) Sent to. Thus, the spatter and dust are prevented from adhering to the inside of the pipe (W).
Further, the connecting pipe (27) is provided in a clamp (29) that moves in synchronization with the carriage (13), and the clamp (29) is provided in the suction device (35) via a retractable connecting pipe (33). Therefore, the connecting pipe (27) is moved along with the movement of the processing head (19).

(Embodiment) Hereinafter, an embodiment of the present invention will be described in detail with reference to the drawings.

Referring to FIG. 2, the base 3 in the laser processing apparatus 1 as the thermal cutting processing apparatus has a U-shaped cross section, and includes side walls 5R and 5L on both end sides and a groove 7. A first guide surface 9 is provided on the upper surface of the side wall 5R in the X-axis direction (horizontal direction in FIG. 2).
A guide groove 11 is formed in the L-axis direction.

A gate-shaped X-axis carriage 13 is provided which is movable in the X-axis direction along the first guide surface 9 and the guide groove 11. The X-axis carriage 13 is moved in the X-axis direction by a drive motor (not shown) and a ball screw or the like.

A second guide surface 15 is provided on the upper surface of the X-axis carriage 13 along the Y-axis direction (front-back direction in FIG. 2), and a Y-axis carriage 17 movable along the second guide surface 15 is provided. It is provided. A processing head 19 movable in the Z-axis direction (vertical direction in FIG. 1) is provided below the tip (right end in FIG. 2) of the Y-axis carriage 17. The Y-axis carriage 17 and the machining head 19 are moved in the Y-axis and Z-axis directions by a drive motor (not shown) and a ball screw, respectively.

On the left side in the X-axis direction in the groove 7 of the base 3,
A rotation support member 21 that supports a pipe W such as a round pipe or a square pipe to be processed is provided. The rotation support member 21 is composed of a chuck 23 for clamping the pipe W, a rotation drive unit (not shown), and the like. The rotation drive unit rotates the pipe W as necessary.

With the above configuration, the pipe W to be machined is clamped by the chuck 23 of the rotation support member 21, and the X-axis carriage 15 and the Y-axis carriage 17 are moved and positioned at the position of the pipe W to be machined. Head 1
9 is positioned and adjusted in the Z-axis direction. Further, a laser beam emitted from a laser oscillator (not shown) is irradiated from the processing head 19 to a processing portion of the pipe W to be processed, whereby predetermined processing such as cutting or hole processing is performed. At that time, the pipe W to be processed is rotated by the rotation drive unit of the rotation support member 21 as necessary.

The rotation support member 21 is provided with a dust collector 25 for removing spatter, dust, etc. generated when the pipe W is processed. More specifically, as shown in FIG. 1, a connecting pipe 27 extending in the X-axis direction in FIG. The tip of the connecting pipe 27 is positioned almost directly below the processing head 19, and the rear end of the connecting pipe 27 is clamped by a clamp 29 having a known structure.

The clamp 29 is integrated with the X-axis carriage 13 by a bracket 31, for example. One end of a flexible connecting tube 33 is connected to the rear end of the clamp 29,
The other end of the connection pipe 33 is connected to the suction device 35.

With the above-described configuration, when the suction device 35 is operated to suck air from the right end of the pipe W, spatter or spatter that is generated when the pipe W is cut or processed by the laser beam from the processing head 19 is performed. Connection tube 2 for dust
7 is sucked in from the tip. Spatter, dust, and the like sucked from the tip of the connecting pipe 27 will be sucked into the suction device 35 via the clamp 29 and the expandable connecting pipe 33.

Thus, the spatter, dust, etc. generated when the pipe W is cut by the laser beam or processed such as hole processing,
Adhesion to the inner surface of the pipe W can be prevented. In addition, the generated spatter and dust are sucked by the suction device 35.
Since it is sucked in and is not discharged to the outside, it does not pollute the environment. As a result, it is possible to save the trouble of removing spatter, dust, etc. from the inside of the pipe W after processing.

Further, the clamp 29, which clamps the rear end of the connection pipe 27, is integrated with the X-axis carriage 15 via the bracket 31, and is connected to the suction device 35 via the extendable connection pipe 33. , Processing head 1
When the machining position by 9 changes in the X-axis direction, connecting pipe 2
7 also moves in synchronization via the bracket 31 and the clamp 29. Therefore, since the tip of the connecting pipe 27 can be always maintained right below the processing head 19, the generated spatter and dust can be efficiently sucked into the tip of the connecting pipe 27.

The present invention is not limited to the above-described embodiments, but can be implemented in other modes by making appropriate changes. For example, although the example in which the clamp 29 is integrally provided on the X-axis carriage 13 via the bracket 31 has been described, the ball screw for driving the X-axis carriage 13 is provided with the clamp 29 via a transmission device such as a gear, and It is also possible to support the clamp 29 so that it can be moved in the X-axis direction.

[Effects of the Invention] As can be understood from the above description of the embodiments, according to the present invention, the pipe (W) to be processed is supported by the rotation support member (21), and the pipe is processed by the processing head (19). (W)
When cutting or drilling is performed on the surface, spatter, dust, etc. are generated from the processing location. Spatters, dusts, etc. generated from the processing point are sucked from the tip of the connecting pipe (27) positioned almost directly below the processing head (19) and sent to the suction device (35). Thus, it is possible to prevent the spatter, the dust and the like from adhering to the inside of the pipe (W) and also to eliminate the pollution of the environment.

Further, the connecting pipe (27) is provided in a clamp (29) that moves in synchronization with the carriage (13), and the clamp (29) is connected to a suction device (35) via a retractable connecting pipe (33). Since it is provided, the tip of the connecting pipe (27) can be always moved along with the movement of the processing head (19) in a state of being positioned almost directly below the processing head (19). Therefore, the generated spatter and dust can always be efficiently sucked from the tip of the connecting pipe (27).

[Brief description of drawings]

FIG. 1 is an enlarged sectional view showing only the main part of the invention from FIG. 2, and FIG. 2 is a perspective view of an embodiment of the invention. 1 ... Laser processing device, 3 ... Base 21 ... Rotation support member, 13 ... X-axis carriage 19 ... Processing head, 25 ... Dust collector 27 ... Connection pipe, 29 ... Clamp 33 ... Connection Tube, 35 ... Suction device

Claims (1)

[Scope of utility model registration request] 1. A pipe (W) to be processed on a base (3).
A rotary support member (21) for rotatably supporting the base (3) is provided, and a carriage (13) movable in the longitudinal direction of the pipe (W) is provided on the base (3).
3) is provided with a processing head (19) for thermally cutting the pipe (W), and substantially the axial center of the rotation support member (21) and the pipe (W) to be processed supported by the rotation support member (21). In the section, the distal end side of the connecting pipe (27) is inserted in the longitudinal direction of the pipe (W), the rear end side of the connecting pipe (27) is clamped, and the carriage (13) moves synchronously with the carriage (13). Clamp (29) is provided, and the suction device (35) is provided to the clamp (29) via a stretchable connecting pipe (33).