JP2706289B2 - High-order combined machining equipment - Google Patents

Description

[Detailed Description of the Invention] [Object of the Invention] (Industrial application field) The present invention relates to a high-order combined machining apparatus that performs cutting, bending, and welding on a work.

(Prior Art) Conventionally, when processing a three-dimensional work such as a box shape from a plate material work, the plate material work is first cut into a desired shape by a cutting device such as a punch press. The workpiece having the desired shape that has been cut is transported to a bending device such as a press brake, which is the next step, and is bent along a desired bending line by the bending device. Next, the work bent into a desired bent shape is transported to a welding device, which is the next step, and a welding process is performed on a predetermined welded portion of the work by the welding device to complete a work having a final product shape. ing.

(Problems to be Solved by the Invention) By the way, before a three-dimensional work such as a box shape is processed from the above-described conventional work of a plate material, the work is sequentially sent to a cutting device, a bending device, and a welding device. The workpiece must be transported, and when processing is performed by each processing apparatus, the work must be repositioned at a predetermined position again. For this reason, there is a problem that extra work and time such as conveyance and repositioning are required until the work having the final shape is finished.

Also, when welding a plurality of welded parts of a work bent into a desired bending shape with a bending device, use a special jig to set each welded part accurately and securely. And the welding operation was very troublesome and required skill.

Furthermore, the series of processes from the conventional work of plate material to the processing of a three-dimensional work such as a box shape is suitable for large lot production, but it is not suitable for flexible production of small lots. there were.

[Structure of the Invention] (Means for Solving the Problems) As described above, in view of the conventional problems, the present invention relates to a front side of a bending apparatus for bending a workpiece using an upper die and a lower die. A laser processing machine for cutting the work is arranged and provided at the same position, and the work can be transported between the bending apparatus and the laser processing machine. The work is folded by the upper mold and the lower mold. A welding processing head for welding a workpiece in a bent state is provided in the bending apparatus, and the laser processing machine and the welding processing head are configured to receive a laser beam from a common laser oscillator body. .

Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

Referring to FIG. 1 and FIG. 2, a high-order combined machining apparatus 1 includes, for example, a bending apparatus 3 formed of, for example, a pre-sprayer, a laser processing machine 5 as a cutting apparatus, and a bending apparatus 3. And a welding device 7 provided in the vicinity of the processing portion.

The bending device 3 is provided on the left side as an arrangement of the entire machine, and, for example, a C-shaped side frame 11 is provided on both sides of the lower frame 9 as in a general press brake. On the front side of the side frame 11, an upper apron 13 and a lower apron 15 are provided. An upper mold 17 is removably mounted below the upper apron 13, and a lower mold 19 is mounted above the lower apron 15.

As is well known, in the bending apparatus 3 having the above configuration, one of the upper and lower aprons 13 and 15 is moved up and down,
By cooperating the upper mold 17 and the lower mold 19, a work interposed between the upper mold 17 and the lower mold 19 is bent.

Although not shown in detail, in the present embodiment, the lower apron 15 is configured to move up and down.

A work handling robot 21 for a bending machine is provided on the right side of the bending apparatus 3 in FIG. 1, and the robot hand 21 for the bending machine is integrally attached to a lower apron 15 in this embodiment. Base plate
It is attached to 23. This base plate 23 is a lower mold
The base plate 23 extends in the left-right direction (hereinafter, referred to as the X1 axis direction) along the longitudinal direction of the base 17. A first movable table 25 is supported on the front surface of the base plate 23 so as to be movable in the X1 axis direction.

The first movable table 25 has an upper side in the front-rear direction (hereinafter referred to as Y1
It is called the axial direction. The fan-shaped part 27 expanded in ()) is provided, and an arc-shaped rack member 29 is provided on the upper part of the fan-shaped part 27. The rack member 29 includes a rack member 29
A second movable table 31 that is movable in the Y1 axis direction along is supported.

On the second movable table 31, a lifting column 33 that is movable in the vertical Z1 axis direction perpendicular to the moving direction of the second movable table 31 is supported. An arm 35 extending in the Y1 axis direction is appropriately fixed to the upper part of the lifting column 33. This arm 35
A clamp device 37 that can freely grip one side end of the work is attached to the tip of the.

More specifically, the work clamp device 37 is provided rotatably in the B1 axis direction about the B axis parallel to the X1 axis, and is provided rotatably in the A1 axis direction orthogonal to the B axis. I have.

With the above configuration, the bending robot handling robot 21
Is moved in the X1-axis, Y1-axis and Z1-axis directions, and is turned in the A1-axis and B1-axis directions. Therefore,
The work clamped by the work clamping device 37 is subjected to various bending by the bending device 3.

A base frame 39 of the laser processing machine 5 is provided on the right side of the bending apparatus 3 so as to extend in the left-right direction (hereinafter, referred to as X2 axis direction) in FIG. A work support table 41 movable in the X2 axis direction is provided on the upper side. A gate-shaped fixed column 43 is erected on the work support table 41.

On the front surface of the fixed column 43, a Y-axis moving body 45 is mounted so as to be movable in the vertical direction in FIG. The Y-axis moving body 45 has a Z that can move in the vertical direction (hereinafter, referred to as the Z2 axis direction) in FIG.
A shaft column 47 is mounted. A processing head 49 for cutting is provided below the Z-axis column 47.

With the above configuration, the processing head for cutting 49 is X2 axis, Y2 axis, Z2 axis.
It will be moved in the axial direction.

A laser oscillator power supply 51 is provided on the right front side of the base frame 39, and a laser oscillator main body 53 is provided on the laser oscillator power supply 51. One end of a laser beam guide 55 is attached to the front surface of the laser oscillator main body 53, and a bend mirror 57 is provided at the other end of the laser beam guide 55.

In the middle of the laser beam guide 55, for example, a laser beam splitter 59 that transmits a laser beam half and reflects the laser beam half is provided. This laser beam splitter 59
Is connected to the Y-axis column 45. One end of a laser beam guide 61 is attached to a lower portion of the bend mirror 57, and the other end of the laser beam guide 61 is attached to an XY table.
Connected to 63.

On the front side (right side in FIG. 1) of this XY table 63
An XY-axis column 65 that is movable in the X1-axis and Y1-axis directions is mounted, and a bend mirror 67 is provided at the tip of the XY-axis column 65. The bend mirror 67 is provided with a laser beam guide 69 extending in the X1 axis direction, and a Z-axis column (not shown) is provided at the tip of the laser beam guide 69. A welding processing head 71 movable in the Z1 axis direction is mounted.

With the above configuration, the welding processing head 71 is moved in the X1, Y1, and Z1 axis directions. The laser beam oscillated by the laser beam oscillator main body 53 passes through a laser beam guide 55 and is incident on a laser beam splitter 59. The laser beam incident on the laser beam splitter 59 is, for example, half-reflected and is incident on the processing head 49 for cutting.

The laser beam incident on the laser beam splitter 59 is, for example, half-transmitted and passes through a laser beam guide 55, a bend mirror 57, an XY table 63, an XY axis column 65, a bend mirror 67, and a laser beam guide 69, and a welding processing head. It will be incident on 71.

The base frame 39 at the stroke end when the work support 41 has moved to the left in the X2 axis direction in FIG.
A work lifting / lowering device 73 that is movable in the Z2 axis direction and that can expand and contract is provided therein. Further, as shown by a two-dot chain line in FIG. 2, a generally known transfer robot 75 may be provided in place of the elevating device 73.

As shown in FIGS. 3, 4 and 5, the Z-axis column 47 or the Z-axis column (not shown) may have A
A shaft rotating body 77 is provided. A motor base 79 is provided below the A-axis rotating body 77, and an A-axis motor 81 such as a servo is provided on the motor base 79. An A-axis pinion 83 is attached to an output shaft of the A-axis motor 81, and an A-axis gear 85 meshes with the A-axis pinion 83.

With the above configuration, when the A-axis motor 81 is driven, the A-axis pinion 83 is rotated. A-axis gear on A-axis pinion 83
When the A-axis pinion 83 rotates, the A-axis rotator 77 is rotated in the A1-A2 axis direction via the A-axis gear 85 as shown by arrows in FIG. .

An A-axis fixed body 87 is provided in the A-axis rotating body 77 as shown in FIG.
A hollow cylindrical body 89 extending in the Z1 and Z2 axis directions is provided. Above the hollow cylinder 89, a B-axis rotating body 91 is provided.

A B-axis motor 93 such as a servomotor is provided on the upper left side of the A-axis rotating body 77 in FIG. 3, and a B-axis pinion 95 is attached to the output shaft of the B-axis motor 93. On the other hand, the B-axis rotating body 91 is provided with a B-axis gear 97. The B-axis pinion 95 is meshed with the B-axis gear 97. An A-axis bend mirror 99 is provided above the B-axis rotator 91, as shown in FIG.

With the above configuration, when the B-axis motor 93 is driven, the B-axis pinion 95 is rotated. B-axis gear on B-axis pinion 95
When the B-axis pinion 95 rotates, the B-axis rotator 91 is rotated in the B1 and B2-axis directions via the B-axis gear 97 as indicated by arrows in FIG. .

As shown in FIGS. 3 and 4, the B-axis rotating body 91 is provided with a C-axis moving body 101, and a nozzle is provided on the upper part of the C-axis moving body 101 via a nozzle holder 103. 105
Is installed. The B-axis bend mirror 107 is built in the C-axis moving body 101. In addition, the nozzle holder 1
03 has a condenser lens 109 built-in.

A C-axis motor 111 such as a servo motor is provided below the C-axis moving body 101, and a C-axis pinion 113 is attached to an output shaft of the C-axis motor 111. On the other hand, a C-axis rack 115 extending in the Z1-Z2 axis direction is provided below the B-axis rotating body 91, and the C-axis pinion 113 is engaged with the C-axis rack 115. The C-axis moving body 1
01 has a C-axis linear guide 117 as shown in FIG.
Is provided.

With the above configuration, when the C-axis motor 111 is driven, C
The shaft pinion 113 rotates. The C-axis pinion 113 has the C
Because the shaft rack 115 is engaged, when the C-axis pinion 113 rotates, the C-axis moving body 101
It is guided by the axial linear guide 117 and is moved in the C-axis direction as indicated by the arrow shown in FIG.

Below the nozzle holder 103, for example, a capacitance type gap sensor 119 is integrally attached. Therefore, when the C-axis moving body 101 is moved in the C-axis direction, the gap sensor 119 is also moved in the C-axis direction.

A C-axis motor main body 121 is attached to the C-axis motor 111, and a C-axis potentiometer 123 is attached to the C-axis motor 111. The gap amount when a gap is detected by the gap sensor 119 is determined by the C-axis potentiometer 123. Will be detected. Since the more specific configurations of the cutting processing head 49 and the welding processing head 71 are already known, description thereof will be omitted.

As shown in FIGS. 3 and 5, a side surface of the C-axis motor 111 is provided with a substantially U-shaped bracket 125, for example, as a welding portion in a work to be described in detail later. A CCD camera 127 as a clearance sensor is attached to detect the clearance. It should be noted that the CCD camera 127 detects the clearance between the butted surfaces of the workpieces, which is not shown in the drawings.
Is provided near the light source.

With the above configuration, the nozzle 105 attached to the tip of the C-axis moving body 101 is moved in the X1, X2 axis, Y1, Y2 axis and Z1, Z2 axis directions, and in the A1, A2 axis and B1, B2 axis directions. It is rotated and further moved in the C-axis direction.

The laser beam LB incident on the cutting processing head 49 and the welding processing head 71 is sequentially reflected by the A-axis bend mirror 99 and the B-axis bend mirror 107 and is condensed by the condenser lens 109. The laser beam LB condensed by the condensing lens 109 is emitted from the nozzle 105 to the surface of the work or the abutting surface of the work, and laser welding by thermal cutting or thermal fusion is performed.

Referring to FIG. 1, the operation of the present embodiment will be described. The work W is placed on the work support 41 and the work support 41 is
While moving in the X2 axis direction,
The workpiece W is moved in the directions of the axis and the Z2 axis, and a laser beam is irradiated from the processing head 49 for cutting onto the workpiece W, whereby a desired shape is cut.

After cutting, the work support table 41 is moved to the stroke end on the left side in the X2 axis direction. Then, when the work elevating device 73 or the transfer robot 75 is operated to move up and down, the work W is positioned at the position indicated by the two-dot chain line.

Next, the bending robot handling robot 21 is operated to clamp one end of the work W by the work clamping device 37, and is conveyed to the processing section of the bending device 3, where the bending device 3 has a desired shape. Bend to In the state where the work W is bent, the welding processing head 71 is moved to the X1-axis, the Y1-axis and the Z1-axis.
The nozzle 105 is moved to the axis to bring the nozzle 105 closer to the abutting surface of the workpiece W. The gap amount between the tip of the nozzle 105 and the butted surface of the workpiece W is detected by the gap sensor 119 and adjusted so as to fall within the range of the gap amount to be welded.

When the tip of the nozzle 105 is within the range of the gap amount to be welded, the welding processing head 71 is rotated in the A1 axis and B1 axis directions and moved in the C axis direction.
CC as a clearance sensor so that the position and orientation at the tip of
It is detected by the D camera 127, and it is monitored whether it is within a predetermined clearance range.

When the clearance falls within the range of the predetermined clearance amount, the welding head 71 irradiates a laser beam to the abutting surface of the workpiece W to perform welding by thermal melting.

In this manner, the cutting, bending, and welding of the work W can be sequentially performed within one process without transporting the work W to another place. Therefore, high-order processing by cutting, bending, and welding can be performed reliably and accurately in a short time. In addition, the conventional method wasted a considerable amount of time on transport and positioning.
In the case of the present embodiment, a very short time is required.

Next, when a special jig device 129 as shown in FIGS. 6 and 7 is mounted on the work support table 41, the bending device 3 performs the bending process or the welding device 7 performs the bending process. Even after welding, the work W can be cut or welded again by the cutting processing head 49.

That is, the special jig device shown in FIGS.
Explaining the structure of 129, the clamp jig base 131 is placed on the maegiku work support base 41. Clamp jig base 131
Attach cylinder supports 133R and 133L on both upper sides. Fluid cylinders 135R, 135L are mounted on the cylinder supports 133R, 133L, respectively. This fluid cylinder 135
Piston rods 137R and 137L that operate so that they can approach and separate from each other are attached to the tips of R and 135L.

At the end of these piston rods 137R and 137L, clamper 1
39R and 139L are provided.

With the above configuration, the work W bent into a hollow cylindrical shape is placed on the clamp jig base 131, and the fluid cylinder
When the 135R and 135L are operated, the clampers 139R and 139L approach each other via the piston rods 137R and 137L, and the workpiece W
Clamp.

By operating the cutting processing head 49 in the manner described above and moving the work W along, for example, the lines Wa, Wb, Wc, Wd, and We, the cutting can be easily performed. Further, by changing the laser beam output of the cutting processing head 49 to welding, and moving the cutting processing head 49 along, for example, the welding line Wf of the work W, welding can be easily performed. Therefore, a three-dimensional workpiece W that has been bent or cut,
Cutting or welding can be performed again.

By using a laser processing machine for the cutting device and the welding device, one laser oscillator 53 can be used together,
It leads to cost reduction.

The present invention is not limited to the above-described embodiment, but can be embodied in other modes by making appropriate changes. For example, a press brake, a tangent bender, or an iron bending machine may be used as the bending apparatus 3 in addition to the bending apparatus described in this embodiment. However, in this case, the transfer robot 12
7 is required.

When a laser beam machine is used for the cutting device and the welding device, it is possible to cope with both processes by changing the conditions of the laser beam output.

[Effects of the Invention] As can be understood from the above description of the embodiments, in short, the present invention provides a folding method in which a work (W) is bent by an upper mold (17) and a lower mold (19). A laser processing machine (5) for cutting the work (W) is arranged and provided in front of the bending device (3), and between the bending device (3) and the laser processing machine (5). A work head for welding the work (W) in a state where the work (W) is provided so as to be conveyable and the work (W) is bent by the upper mold (17) and the lower mold (19); (71) is provided in the bending apparatus (3), and the laser beam machine (5) and the welding processing head (71) are configured to receive a laser beam from a common laser oscillator body (53). .

As is clear from the above configuration, in the present invention, the laser processing machine 5 is disposed in front of the bending apparatus 3 and the work W is provided so as to be transportable. And can be conveyed to the bending apparatus 3.

Since the bending apparatus 3 includes the welding processing head 71 for welding the work W in a state where the work W is bent by the upper mold 17 and the lower mold 19, the cutting processing of the work W is performed. , A series of processes such as downward bending and welding can be performed efficiently.

Further, in the present invention, since the laser beam machine 5 and the welding processing head 71 are configured to receive a laser beam from the common laser oscillator main body 53, only one laser oscillator main body 53 is required and the configuration is simpler. In addition, the cutting and welding of the work W can be performed at the same time, and the productivity can be improved.

[Brief description of the drawings]

FIG. 1 is a front view of a high-order combined machining apparatus according to the present invention, and FIG. 2 is a view taken in the direction of arrow II in FIG. 3 is a front view of the processing head for cutting or the processing head for welding, FIG. 4 is a view as viewed from an arrow IV in FIG. 3, and FIG. 5 is a view as viewed from an arrow V in FIG. FIG. 6 is a front view of the special jig device, and FIG. 7 is a view taken in the direction of arrow VII in FIG. DESCRIPTION OF SYMBOLS 1 ... High-order compound processing apparatus 3 ... Bending processing apparatus 5 ... Laser processing machine (cutting processing apparatus) 7 ... Welding apparatus 21 ... Hand rig robot for bending machine 49 ... Processing head for cutting 71 ... … Welding processing head 73 …… Work lifting device 119 …… Gap sensor 127… CCD camera (clearance sensor)

 ──────────────────────────────────────────────────続 き Continuation of the front page (56) References Japanese Patent Publication No. 53-11958 (JP, B2)

Claims (1)

(57) [Claims] A laser for cutting a work (W) in front of a bending device (3) for bending a work (W) by an upper mold (17) and a lower mold (19). A processing machine (5) is arranged and provided, and a work (W) is provided so as to be transportable between the bending apparatus (3) and the laser processing machine (5). A welding processing head (71) for welding the work (W) in a state where the work (W) is bent by the mold (19) is provided in the bending apparatus (3); (5) The high-order combined machining apparatus wherein the welding head (71) is configured to receive a laser beam from a common laser oscillator body (53).