JP2000176760A - Laser-punch complex processing machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a laser-punch complex processing machine equipped with a laser oscillator in its main body for preventing the laser oscillator and a laser transmission optical system from being affected by oscillation at the time of punching. SOLUTION: In this complex processing machine equipped with a laser processing head 57, and a punch processing heads 7 and 11 over the same main body frame 3, the base 67 of the laser oscillator 61 is supported over the main body frame via air springs 65, and this laser-punch complex processing machine is provided with a positioning means 69 for regulating a position in the horizontal direction with respect to the main body frame of the base for the laser oscillator.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a combined laser and punching machine. More specifically, the present invention relates to a combined laser / punch processing machine having a laser processing head and a punch processing head on the same main body frame.

[0002]

2. Description of the Related Art In a conventional laser / punch combined machine of a single axis optical axis moving and single axis material moving type, a laser processing head and a punch processing head are provided on the same main body frame so as to be movable and positioned, and a laser oscillator is provided. Is usually installed separately from the main body frame to insulate vibration during punching.

[0003]

In the conventional laser-punch combined machine of the type described above, a laser machining head feed mechanism is provided on the main body frame of the punching machine, so that laser machining is performed by a laser oscillator. There is a problem that optical alignment of a beam transmission optical system for transmitting a laser beam to the head and a condensing optical system in the laser processing head is out of order due to vibration during punching.

[0004] Further, since the laser oscillator is provided separately from the main body of the processing machine, there is a problem that the installation floor area is increased and the transportation is performed separately.

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned problems, and an object of the present invention is to provide a laser oscillator on a processing machine main body, and to provide a laser oscillator, a beam transmission optical system, which vibrate during punching. Another object of the present invention is to provide a laser-punch combined processing machine of a single-axis optical axis movement and a single-axis material movement type which is inferior to a focusing optical system.

[0006]

According to a first aspect of the present invention, there is provided a laser-punch combined machine according to the first aspect of the present invention.
In a multi-tasking machine equipped with a laser processing head and a punching processing head on the same main body frame, a laser oscillator base is supported on the main body frame via an air spring, and a main body frame of the laser oscillator base is provided. The gist of the present invention is that a positioning means for regulating a horizontal position with respect to is provided.

According to a second aspect of the present invention, in the laser punch combined machining apparatus according to the first aspect, the laser processing head can be moved and positioned on the lower surface of the base of the laser oscillator in the Y-axis and Z-axis directions. Vertically, the punching head is provided so as to be movable and positioned in the Y-axis direction adjacent to the laser processing head, and the workpiece is movable and positioned in the X-axis direction below the laser processing head and the punching head. The gist of the present invention is that a material positioning device is provided.

[0008]

Embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 is a front view for explaining the basic structure of a laser / punch compound machine according to the present invention, and FIG.
FIG. 2 is a cross-sectional view along the line II.

Referring to FIG. 2, the laser-punched multifunction machine 1 is mounted on the upper frame 5 on the right side of the main body frame 3.
An upper punching head 7 is provided which can be moved and positioned in the axial direction (the direction perpendicular to the plane of FIG. 2).

The lower frame 9 below the above-mentioned upper punching head 7 is provided with a lower punching head 11 which can be moved and positioned in the Y-axis direction.

The upper punching head 7 includes an upper carriage 15 for holding a punch assembly 13 (generally, simply referred to as a punch) slidably in a vertical direction, and a hydraulic cylinder 17 fixed on the upper part of the upper carriage 15.
And a striker 19 provided on a piston of the hydraulic cylinder 17 and capable of pressing a punch head of the punch assembly 13.

The above-described upper carriage 15 is movably suspended via two linear motion bearings 23 on two guide rails 21 provided on the upper frame 5 so as to extend in the Y-axis direction. The upper carriage 15 is screwed via a nut member (not shown) to a first Y-axis feed screw 25 that is rotationally driven by an upper carriage drive motor (not shown) provided on the upper frame 5.

Accordingly, the punch assembly 13 mounted on the upper carriage 15 can be positioned at an arbitrary position in the Y-axis direction by appropriately rotating the upper carriage driving motor (not shown).

The lower frame 9 is provided with a lower carriage 27 movably via a linear motion bearing 31 on two guide rails 29 provided to extend in the Y-axis direction. A die 33 cooperating with the punch of the punch assembly 13 is coaxially mounted on the lower carriage 27.

The lower carriage 27 has a nut member (not shown) attached to a second Y-axis feed screw 35 which is driven to rotate by a lower carriage drive motor (not shown) provided on the lower frame 9, similarly to the upper carriage 15. ).

Accordingly, the die 33 mounted on the lower carriage 27 can be positioned at an arbitrary position in the Y-axis direction by appropriately rotating the lower carriage driving motor (not shown).

The above-described upper carriage driving motor and lower carriage driving motor are controlled by an NC device (not shown), and the upper carriage 15 and the lower carriage 27 are moved and positioned synchronously.

The lower frame 9 has a plate-shaped workpiece W
There is provided a material support table 37 for supporting. The upper surface of the material support table 37 is provided at substantially the same level as the upper surface of the die 33. A groove 39 extending in the Y-axis direction is provided on the material support table 37 where the lower carriage 27 moves in the Y-axis direction so that the upper surface of the die 33 on the lower carriage 27 can contact the lower surface (back surface) of the material. Is provided.

As shown in FIG. 1, a material positioning device 41 is provided on the right side of the front surface for gripping the workpiece W and moving and positioning it in the X-axis direction.

X-axis carriage 4 of material positioning device 41
Numeral 3 is movably provided on an X-axis rail 47 laid on a bracket 45 provided on the main body frame 3 via a linear motion bearing 49. Also, the X-axis carriage 43
An X-axis feed screw 51, which is rotationally driven by an X-axis drive motor (not shown), is screwed via a nut member 53.

The workpiece W is mounted on the X-axis carriage 43 described above.
Are mounted.

In the punching section having the above configuration, the workpiece W gripped by the material clamp 55 of the material positioning device 41 is positioned at a desired position in the X-axis direction, and at the same time, the upper carriage 15 and the lower carriage 27 are moved in the Y-axis direction. Then, the hydraulic cylinder 17 is operated and the punch head is pressed by the striker 19, whereby punching can be performed at a desired position of the plate material. In addition, the swarf at the time of punching is discharged from the drop hole 20 to the outside of the machine.

Referring again to FIG. 2, a laser processing head 57 is provided to the left of the upper and lower punching processing heads (7, 11) so as to be movable and positionable in the Y-axis and Z-axis directions. The laser processing head 57 includes a laser nozzle 59 that can be moved and positioned in the Y-axis and Z-axis directions, a laser oscillator 61 that sends a laser beam LB to the laser nozzle 59, and the like.

In the laser oscillator 61 described above, air springs 65 are respectively provided on four brackets 63 provided on the left and right side plates of the main body frame 3, and the four air springs 65 use the base 67 of the laser oscillator 61. Are mounted on the main body frame 3 so as to support the four points.

A positioning means 69 is provided near the four air springs 65. The positioning means 69 may be provided, for example, by providing a pin 71 having a tapered portion at the tip as shown in FIG. 3 on the bracket 63 and providing a bush 73 engaging with this pin 71 on the base 67 side of the laser oscillator 61. Good.

Each of the above-mentioned air springs 65 is connected to a high-pressure air pressure source 75 via a check valve (not shown) such as a pilot check valve.

In the above configuration, if high-pressure air is supplied from the air pressure source 75 to the four air springs 65, the air springs 65 expand, and the laser oscillator 61 and the base 67 are slightly moved from the bracket 63 by a small amount (h). ) Surface.
As shown in FIG. 3, the state of the positioning means 69 when the base 67 of the laser oscillator 61 floats is not a state in which the bush 73 is completely removed from the pin 71, and a state in which the horizontal position is regulated. Have maintained.

On the lower surface of the base 67 of the laser oscillator 61, two guide rails 77 extending in the Y-axis direction are laid. On the two guide rails 77, the Y-axis carriage 79 of the laser processing head 57 is movably suspended via a linear motion bearing 81.

Also, the section is Greek letter Γ (gamma)
A guide rail 83 extending in the Z-axis direction (a direction orthogonal to the X and Y axes) is laid on the vertical portion of the Y-axis carriage 79 having a shape similar to the above. A Z-axis carriage 85 provided with the laser nozzle 59 is provided on the guide rail 83 so as to be movable via a linear motion bearing 87.

The above-mentioned Y-axis carriage 79 is screwed via a nut member 91 to a third Y-axis feed screw 89 which is driven to rotate by a Y-axis carriage drive motor (not shown). Similarly, the Z-axis carriage 85 is also screwed via a nut member (not shown) to a feed screw that is rotationally driven by a Z-axis drive motor (not shown).

In the above configuration, the laser nozzle 59 can be positioned at an appropriate position by appropriately rotating and driving the Y-axis carriage drive motor under the control of an NC device (not shown). Further, the laser nozzle 59 can be positioned at an appropriate height by rotating the Z-axis drive motor.

A focusing optical system (not shown) such as a convex lens for focusing a laser beam on the surface of a workpiece is provided inside the laser nozzle 59. Further, an assist gas for efficiently cutting thick metals is provided from the laser nozzle 59.

The laser oscillator 61 is provided with a laser beam transmission path 93 for transmitting a laser beam from the laser oscillator 61 to the focusing optical system in the laser nozzle 59.
This laser beam transmission line 93 is composed of the following three parts.

That is, a horizontal fixed conduit portion 97 extending from the laser oscillator 61 horizontally to the first bend mirror 95 for vertically bending the laser beam LB, and a vertical fixed conduit portion 97 extending from the first bend mirror 95 to the second bend mirror 99. These are three portions of a flexible telescopic conduit portion 101 and a bellows portion 103 from the second bend mirror 99 to the Y-axis carriage 79 of the laser processing head 57.

The fixed conduit section 97 is connected to the laser oscillator 6.
It is fixedly supported on a column 105 erected on one base 67. Further, the Y-axis carriage 79 has a third bend in which the laser beam from the second bend mirror 99 is bent in the Z-axis direction.
A bend mirror 107 is provided.

When the laser processing is performed in the above configuration, the air of the air spring 65 that floats and supports the base 67 of the laser oscillator 61 is gradually discharged, and the base 67 is gradually lowered. The position of the laser oscillator 61 is fixed.

After fixing the laser oscillator 61, the laser processing head 57 is controlled as described above to
Is positioned at an appropriate position on the Y axis, and at the same time, the material is positioned at an appropriate position on the X axis by the material positioning device 41. The laser nozzle 59 is positioned at an appropriate height on the workpiece by rotating the Z-axis drive motor.

The irradiation of the workpiece with the laser beam is performed while simultaneously controlling the positioning of the laser nozzle 59 and the material positioning device 41. When processing a straight line on the X-axis or the Y-axis, the processing can be performed by controlling the position of the laser nozzle 59 or the material positioning device 41.

It is to be noted that scrap generated during laser cutting, for example, falls from a rectangular drop groove 109 extending in the Y-axis direction provided on the material support table 37 into a scrap box 111 provided on the lower surface of the material support table 37. It has become.

When performing punching, high-pressure air is sent to the air spring 65 so that the base 67 of the laser oscillator 61 is lifted, so that the laser oscillator 61 and the laser beam transmission path optical system are vibrated during punching. Can be protected from

When the laser oscillator 61 is raised or lowered, the positioning means 69 causes the laser oscillator 6 to move.
Since the position in the horizontal direction is regulated, the alignment of the optical system of the laser beam transmission path is not broken.

[0043]

According to the first or second aspect of the present invention, the base of the laser oscillator is supported via the air spring provided on the main body frame at the time of punching. The optical alignment of the laser oscillator, the beam transmission optical system, and the converging optical system in the laser processing head is not disturbed by the vibration.

Further, since the laser oscillator is mounted on the main body of the processing machine, the installation floor area is reduced, and the adjustment work during transportation and installation is also facilitated.

[Brief description of the drawings]

FIG. 1 is a front view illustrating a basic configuration of a laser punch multifunction peripheral according to the present invention.

FIG. 2 is a sectional view taken along the line II-II in FIG.

FIG. 3 is an enlarged view of an example of a positioning unit of a base of the laser oscillator in FIGS. 1 and 2;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Laser punch compound machine 3 Main body frame 5 Upper frame 7 Upper punching processing head 9 Lower frame 11 Lower punching processing head 13 Punch assembly 15 Upper carriage 17 Hydraulic cylinder 19 Strike bar 20 Drop hole 21 Guide rail 23, 31 Linear motion bearing 25 1st Y axis feed screw 27 Lower carriage 29 Guide rail 33 Die 35 2nd Y axis feed screw 37 Material support table 39 Groove 41 Material positioning device 43 X axis carriage 45 Bracket 49 Linear motion bearing 47 X axis rail 51 X axis feed screw 53 Nut Member 55 Material clamp 57 Laser processing head 59 Laser nozzle 61 Laser oscillator 63 Bracket 65 Air spring 67 Base 69 Positioning means 71 Pin 73 Bush 75 Pneumatic source 77 Guide rail 79 Y-axis carriage 81, 87 Linear motion bearing 83 Guide rail 85 Z-axis carriage 89 Third Y-axis feed screw 91 Nut member 93 Laser beam transmission path 95 First bend mirror 97 Fixed conduit part 99 Second bend mirror 101 Telescopic conduit Part 103 bellows part 105 prop 107 third bend mirror 109 falling groove 111 scrap box LB laser beam W workpiece

Continuation of the front page F term (reference) 4E048 CA01 CA04 CA07 CA12 4E068 AA01 CA11 CA12 CA14 CB03 CD13 CE02 CE04 CK01 DA14 DB01 5F072 JJ05 KK05 YY06

Claims (2)

[Claims] 1. A multi-tasking machine comprising a laser processing head and a punching processing head on the same main body frame, wherein a base of a laser oscillator is supported on the main body frame via an air spring, and A combined laser / punch machine comprising a positioning means for regulating a horizontal position of a base with respect to a main body frame. 2. The laser processing head is vertically mounted on the lower surface of the base of the laser oscillator so as to be movable and positionable in the Y-axis and Z-axis directions, and the punching processing head is positioned adjacent to the laser processing head in the Y-axis direction. 2. The laser punch according to claim 1, wherein a material positioning device is provided so as to be movable and positionable, and is capable of moving and positioning the workpiece in the X-axis direction below the laser processing head and the punching processing head. Multitasking machine.