JPH08281481A - Method for carrying away cut piece of plate material and plate material working device using this device - Google Patents

Abstract

PURPOSE: To obtain a method and device for carrying away and loading cut pieces to a gathering place without flawing the cut pieces and a plate material working device using this device. CONSTITUTION: This plate material working device 100 has a plate material positioning device 15 and a working head positioning means. The device described above is provided with a cut piece removing mechanism 67 for removing the cut piece F cut in the plate material working device from the plate material by holding the cut piece from the front and rear and a cut piece carry away mechanism 68 having a cut piece clamping device 103 capable of freely clamping the cut piece F held in this cut piece removing mechanism 67. The cut piece after completion of cutting is held from the front and the rear by the cut piece removing mechanism 67 and is lifted and held to the specified position H isolated from the plate material. The cut piece lifted and held in such a manner is clamped by the cut piece clamping device 103 of the cut piece carrying away mechanism 68 and is carried away to the gathering position.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method and apparatus for carrying out cut pieces of a plate material, and a plate material processing apparatus using the same.

[0002]

2. Description of the Related Art There are several methods for carrying out cut pieces of a plate used in a plate processing apparatus as follows.

(1) A method in which a cut piece stacking box for receiving cut pieces is provided below the work piece at a work piece processing position of the plate material processing apparatus, and the cut pieces are naturally dropped into the stack box by a drop guide device.

(2) A method in which a cut piece is sucked and held by a vacuum suction device and carried out to an appropriate position outside the workpiece.

(3) A method of carrying out a cut piece to an appropriate position outside the material to be processed by using a suction device using an electromagnet instead of the vacuum suction device of the above (2).

[0006]

In the above method (1), the cut pieces are naturally dropped into the stacking box, so that the cut pieces may be damaged or deformed. Also, the direction of the cut pieces after dropping is irregular, so it is necessary to sort them separately for orderly loading.

In the method (2), when there are many holes in the cut piece, the cut piece may not be adsorbed due to insufficient suction force, or the cut piece may drop during transportation.

In the case of (3), there is a problem that the materials that can be adsorbed are limited to magnetic materials.

The present invention has been made in view of the above-mentioned problems, and an object of the present invention is to carry out cut pieces of various materials cut in a plate material processing apparatus to a predetermined stacking position without damaging them. (EN) A loading method and apparatus, and a plate material processing apparatus using the apparatus.

[0010]

In order to achieve the above object, a method of carrying out a cut piece of a plate material according to claim 1 is a plate material processing apparatus including a plate material positioning device and a processing head positioning means. A cutting piece unloading mechanism that sandwiches the cutting pieces cut in the processing device from the front and back to extract from the plate material, and a cutting piece unloading device that includes a cutting piece holding device that can hold the cutting pieces held by the cutting piece extracting mechanism. A mechanism is provided, and the cut pieces after completion of cutting are sandwiched from the front and back by the cut piece removing mechanism and lifted and held at a fixed position separated from the plate material, and the lifted and held cut pieces are cut by the cut piece unloading mechanism. It is characterized in that it is gripped by the one-side gripping device and carried out to the stacking position.

According to a second aspect of the present invention, there is provided a method for carrying out a cut piece of a plate material according to the first aspect of the present invention.
The plate material processing apparatus is a thermal cutting processing apparatus.

A method of carrying out a cut piece of a plate material according to a third aspect is the method of carrying out a cut piece of a plate material according to the second aspect.
The thermal cutting apparatus is a laser processing apparatus or a plasma arc cutting apparatus.

According to a fourth aspect of the present invention, there is provided a plate material carrying-out device for carrying out a plate material positioning device which is movable in the X-axis direction.
In a plate material processing apparatus provided with a processing head positioning means that is movable in the Y axis direction orthogonal to the axial direction, at a position close to the processing head, the plate material processing apparatus is movable in the Y axis direction parallel to the moving direction of the processing head. An upper cutting piece pressing device is provided on an upper face plate of the main body frame, and a lower cutting piece pressing device movable in the Y-axis direction is provided on the lower face plate of the main body frame so as to face the upper cutting piece pressing device. The cutting piece pressing rod of the one-sided pressing device is provided so as to be able to press the cutting piece surface, and the cutting piece pressing rod of the lower cutting-side piece pressing device is positioned at two positions of the back surface position of the cutting piece and a position above the back surface position. And a cutting piece unloading mechanism that is capable of unloading the cutting pieces lifted and held at the unloading position by the cutting piece unloading mechanism to the stacking position. That.

According to a fifth aspect of the present invention, there is provided a plate material cutting piece unloading device according to the fourth aspect.
The cutting piece unloading mechanism is provided on an upper face plate of a main body frame of the plate material processing apparatus so as to be movable in the Y-axis direction.

According to a sixth aspect of the present invention, there is provided a plate material cutting piece unloading device according to the fourth aspect.
The cutting piece unloading mechanism is provided in the machining head positioning means that is movable in the Y-axis direction.

According to a seventh aspect of the present invention, there is provided a plate material cutting piece unloading device according to the fourth aspect.
The plate material processing apparatus is a thermal cutting processing apparatus.

A plate material cutting piece unloading device according to an eighth aspect is the plate material cutting piece unloading device according to the seventh aspect.
The thermal cutting apparatus is a laser processing machine or a plasma arc cutting apparatus.

The plate material processing apparatus plate material according to claim 9 is X
A plate material positioning device movable in the axial direction and a machining head positioning means movable in the Y-axis direction orthogonal to the X-axis direction are provided, and a position close to the machining head is movable in the Y-axis direction. The one-side pressing device is provided on the upper face plate of the main body frame, and the lower-side cutting plate pressing device that is movable in the Y-axis direction is provided on the lower face plate of the main body frame so as to face the upper-side cutting piece pressing device. The cutting piece pressing rod of the device is provided so as to be able to press the cutting piece surface, and the cutting piece pressing rod of the lower cutting piece pressing device can be positioned at two positions, that is, the back surface position of the cutting piece and a position above the back surface position. The cutting piece unloading mechanism movable in the Y-axis direction is provided on the upper face plate of the main body frame, and the cutting piece pushing rod of the lower cutting piece pressing device and the cutting piece pushing device of the upper cutting piece pressing device are provided. In which the cut pieces held lifted to the position of the upper disposed freely unloaded to the stacking position by the cutting pieces out mechanism by a rod.

According to a tenth aspect of the present invention, there is provided a plate material unloading device, wherein the cutting material unloading mechanism is provided in the processing head positioning means in the plate material processing apparatus of the ninth aspect.

According to an eleventh aspect of the present invention, there is provided a plate material unloading device, wherein the plate material processing device is a thermal cutting device.

According to a twelfth aspect of the present invention, there is provided a plate material unloading device, wherein the thermal cutting device is a laser processing device or a plasma arc cutting device.

[0022]

According to the method of carrying out a cut piece of a plate material according to claims 1 to 3, the cut piece cut by the plate material processing device is lifted and held by a cut piece extraction mechanism at a fixed position separated from the plate material, and the lifted piece is lifted. Since the held cutting pieces are gripped by the cutting piece gripping device of the cutting piece unloading mechanism and carried out to the stacking position, it is possible to prevent scratches or deformation caused by dropping the cutting pieces. Further, even when the cut piece has a hole, the cut piece removing mechanism can avoid the position of this hole and hold it. Further, the material of the plate material that can be held is not limited to the magnetic material.

According to the cut piece carrying-out device for a plate material of claims 4 to 8, the same operation as that of the above-mentioned claims 1 to 3 can be obtained, and a cut piece cut from the plate material can be obtained. Since the front and back sides are sandwiched so that they can be lifted and held above the carrying position of the plate material positioning device, the lifted and held cutting pieces can be easily gripped by the cutting piece gripping device of the cutting piece unloading mechanism.

Since the plate material processing apparatus according to any one of claims 9 to 12 uses the plate material cutting piece unloading device according to any one of claims 4 to 8, the plate material processing apparatus according to any one of claims 4 to 8 is used.
~ It is possible to obtain the same action as that obtained by the invention of claim 8.

[0025]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, a method and apparatus for carrying out cut pieces of a plate material, and a plate material processing apparatus using the same will be described with reference to the drawings.

1 and 2 are a side sectional view and a plan view of a first embodiment of a plate material processing apparatus 100 using the plate material cutting piece unloading device according to the present invention. For convenience of description, the front and rear of the plate material processing apparatus 100 is referred to as the front side or the front side and the right side as the rear side in FIG. 1.
The left and right sides of the plate material processing apparatus 100 means the plate material processing apparatus 1
00 is left and right when viewed from the front. In addition, the horizontal direction in FIG. 1 is the X-axis direction, and the Y-axis direction is the direction orthogonal to the X-axis direction, and represents the vertical direction in FIG.

Referring now to FIGS. 1 and 2, the plate material processing apparatus 100 is shown by taking a laser processing apparatus as an example. The main body frame 1 of this laser processing apparatus has a left frame 5L and a right frame 5R standing on a base 3,
The frame 1 is composed of an upper face plate 7 fixed above and a lower face plate 9 fixed below. Further, a fixed table 11 is provided above the lower face plate 9 between the left and right frames, and the fixed table 11 is fixed and supported by brackets (13F, 13R) provided in front and rear of the lower face plate 9, It is provided from the front side to the rear side of the.

Above the fixed table 11 on the rear side of the lower face plate 9, an X-axis carriage 17 of a plate material positioning device 15 for positioning the plate material W in the X-axis direction is provided on the fixed table 1.
1, a guide member 19 such as a linear motion bearing is provided at an end of the X-axis carriage 17 on the right frame 5R side, and the guide member 19 is provided on the right frame 5R side. It is movably engaged with an X-axis guide rail 21R laid on the right side surface of the bracket 13R on the rear side of the lower face plate 9.

A wheel (not shown) for movably supporting the X-axis carriage 17 in the X-axis direction is provided at the end of the X-axis carriage 17 on the left frame 5L side, and the fixed table is provided. The upper surface of the left end of 11 is engaged on an X-axis guide rail 21L laid in the X-axis direction so as to be able to travel and supports the weight of the X-axis carriage 17. The X-axis carriage 17 on the left frame 5L side
The guide mechanism may be the same as the guide mechanism on the right frame 5R side. That is, the same X-axis guide mechanism can be used on both sides.

A motor mounting bracket 2 for mounting the X-axis drive motor 23 on the right side of the rear end of the fixed table 11.
5 is provided, and the X-axis feed screw 2 is provided between the X-axis drive motor 23 attached to the motor attachment bracket 25 and the feed screw support member 27 attached to the rear surface of the lower face plate 9.
9 is adjacent to the X-axis guide rail 21R and is rotatably supported in parallel to the X-axis guide rail 21R.

The X-axis feed nut member 29 of the X-axis carriage 17 and the X-axis feed screw 31 are screwed together. A plurality of plate material gripping devices 33 for gripping the plate material W are provided on the X-axis carriage 17 above the fixed table 11.
Are mounted so that the distance in the Y-axis direction can be adjusted. On the surface of the fixed table 11, plate material supporting members 12 such as free bearings for supporting the plate material W are arranged at appropriate intervals.

In the plate material positioning device 15 having the above-described structure, the plate material W is attached to the plate material gripping device 33, and the CNC device (not shown) appropriately drives and controls the X axis drive motor 23 to move the plate material W in the X axis direction. It can be positioned at any position.

Next, the structure of the laser processing head 35 will be described with reference to FIGS. 1 and 2. The laser processing head 35 is a nozzle 3 including an optical system such as a convex lens or a concave mirror that collects the laser beam LB.
7. A processing head positioning means such as a Z-axis carriage 39 for moving the nozzle 37 in the Z-axis direction orthogonal to the X-Y axes and a Y-axis carriage 41 for moving the nozzle 37 in the Y-axis direction.

Two parallel Y's are provided on the front surface of the upper face plate 7.
An axis guide rail 43 is provided, and a guide member 45 provided on the Y axis carriage 41 is movably engaged with the Y axis guide rail 43. Further, the Y-axis drive motor 47 that drives the Y-axis carriage 41 is attached to the upper face plate 7.
It is attached to the left end of the Y-axis drive motor 4
A Y-axis feed screw 49 driven by 7 is provided from the left end portion to the right end portion of the upper face plate 7. One end of the Y-axis feed screw 49 is connected to the Y-axis drive motor 47, and the other end is pivotally supported by the bearing 51 at the right end of the upper face plate 7. Further, the Y-axis carriage 41 has the Y-axis feed screw 49
A nut member 53 that is screwed with is provided.

By configuring the Y-axis carriage 41 as described above, the Y-axis drive motor 47 can be appropriately driven and controlled by the CNC device to position the Y-axis carriage 41 at any position in the Y-axis direction.

The laser processing head 35 has the Z
A guide member 55 fixed to the Z-axis carriage 39 is attached to the shaft carriage 39, and is movably engaged with a Z-axis guide rail 57 provided on the Y-axis carriage 41. A Z-axis drive motor 61 is provided on the motor mounting bracket 59 of the Y-axis carriage 41. Then, the Z-axis feed screw 63 driven by the Z-axis drive motor 61 and the nut member 65 fixed to the Z-axis carriage 39.
And are screwed together. The laser processing head 35 is Y
The fixed table 11 in the axially movable range is provided with a smoke exhaust groove 92 for releasing spatter, gas, etc. generated during laser cutting.

By constructing the laser processing head 35 as described above, the Z-axis drive motor 61 is used in the CNC device.
Can be appropriately controlled to position the Z-axis carriage 39 at an appropriate position in the Z-axis direction.

The laser processing head 35 can be positioned at a required position on the plate material W by appropriately controlling the above three axes of X, Y and Z by the CNC device.

Further, the optical system for converging the laser light provided in the nozzle 37 of the laser processing head 35 includes a laser light from a laser oscillator (not shown) such as a carbon dioxide gas laser oscillator or a YAG laser oscillator. The LB is transmitted via a laser light transmission optical system (not shown) including a plurality of reflecting mirrors. Therefore, the plate material positioning device 15 and the laser processing head 35 are appropriately controlled, and the laser processing head 35 converges and irradiates a laser beam onto the plate material W to cut and process the plate material W into an arbitrary shape. Is possible.

Next, a cut piece carrying-out device for carrying out the cut pieces cut by the plate material processing apparatus 100 will be described with reference to FIGS. 1 to 7.

First, referring to FIGS. 1 and 2, the cutting piece unloading device includes a cutting piece unloading mechanism 67 and a cutting piece unloading mechanism 68.
The cutting piece extracting mechanism 67 is provided with a pair of cutting piece pressing devices for sandwiching an appropriate position of the cutting piece F cut from the plate W by the laser beam machine as in the embodiment from the front side and the back side. ing. In this embodiment, a cylinder is used as the cutting piece pressing device, and a piston rod of the cylinder is directly used as the cutting piece pressing rod.

As the lower cutting piece pressing device 70, the second cylinder 69 is provided below the back side of the plate W, and as the upper cutting piece pressing device 80, the first cylinder 71 is provided above the front side of the plate W. The piston rod of the second cylinder 69 can be positioned at two positions.

With respect to the second cylinder 69, the Y is formed on the front side surface of the lower face plate 9 below the fixed table 11.
A guide rail 73 for the second cylinder is provided parallel to the shaft guide rail 43, and a guide member 75 provided on the side surface of the second cylinder 69 is engaged with the guide rail 73. The guide rail 73 is provided on the lower face plate 9
From the left end to the right end. Further, a second cylinder drive motor (not shown) for moving the second cylinder 69 along the guide rail 73 is provided on the lower face plate 9, and a feed screw 77 and a first screw driven by the second cylinder drive motor are provided. The nut member 79 of the two-cylinder 69 is screwed and provided. The piston rod 89 of the second cylinder 69 is the fixed table 11
It is provided so as to be movable in the Y-axis direction in the piston rod passage groove 91 provided in the above and to be able to come into contact with the plate material W. Therefore, the second cylinder drive motor can be appropriately controlled by the CNC device to position the second cylinder 69 at an arbitrary position in the Y-axis direction.

The first cylinder 71 is provided with a guide rail 81 for the first cylinder for guiding the first cylinder 71 in parallel with the second cylinder 69 at a position below the upper face plate 7. A guide member 83 provided on the first cylinder 71 is engaged with 81. The first cylinder is synchronized with the second cylinder 69.
A first cylinder drive motor (not shown) for moving the cylinder 71 is provided on the upper face plate 7, and a feed screw 85 driven by the first cylinder drive motor and a nut member 87 of the first cylinder 71 are screwed together. It is provided together. Therefore, like the second cylinder 69, the C
This first cylinder drive motor is appropriately driven and controlled by the NC device to move the first cylinder 71 to the second cylinder 69.
Positioning can be performed in synchronization with.

The cutting piece pressing device may be provided with a rack on the cutting piece pressing rod, instead of the cylinder, and a pinion gear engaging with the rack may be driven by a servomotor. It is easily understood that the cutting piece pressing rod can be positioned at an appropriate position in this way.

Next, the cutting piece unloading mechanism 68 will be described. The cutting piece unloading mechanism 68 is provided with a joint robot including a plurality of joints and an arm on the Y-axis carriage 41. This joint robot has three joints and two arms, and the shaft portion of the first joint 95 of the first arm 93 is pivotally supported by the Y-axis carriage 41. The first arm 93 is connected to the second arm 99 by the second joint 97,
Then, the cutting piece F is attached to the third joint 101 of the second arm 99.
There is provided a cutting piece gripping device 103 for gripping.

The first joint 95 has a first arm drive motor M1 and the second joint 97 has a second arm drive motor M2.
Is provided. Further, the third joint 101 is provided with a drive motor M3 that rotationally drives the cutting piece gripping device 103, and can rotate the cutting piece gripping device 103 to an appropriate position similarly to the arm. Further, the cutting piece gripping device 1
03 is provided with a drive motor M4 for rotating the cut piece gripping device 103 in the horizontal direction in FIG. 1 (the direction parallel to the paper surface in FIG. 2). These drive motors M1 to
By appropriately controlling the drive of M4 by the CNC device, the cutting piece grasping device 103 can be brought into a desired position and posture.

By configuring the cutting piece unloading mechanism 68 as described above, the cutting piece gripping device 103 can be moved in the Y-axis direction at the same time as the laser processing head 35. Then, the cutting piece gripping device 103 can be set to a desired position and posture, and the cutting pieces F can be gripped and carried out to the stacking position.

3 to 7 are enlarged detailed views showing the construction and operation of the cutting piece extracting mechanism 67 of the cutting piece unloading device.

First, the structure of the second cylinder 69 as the lower cutting piece pressing device 70 will be described with reference to FIG. The piston rod 89 of the second cylinder 69 is manufactured such that the rod diameter on the piston side is slightly smaller, and the large diameter portion of the piston rod is provided so as to protrude from the cylinder tube 105, and at the end of the small diameter portion 106 of the piston rod. A piston 107 for actuating the piston rod 89 is fixedly provided. Further, an annular floating piston 109 is movably provided on the piston rod 89.

The outer peripheral portion of the floating piston 109 is engaged with the cylinder tube 105, and the inner diameter portion is slidably engaged with the cylindrical spacer 111 inserted in the small diameter portion. The moving range of the floating piston 109 is restricted to the range between the piston 107 and the annular stopper 113 provided on the step portion of the piston rod.

A spring receiving hole 115 having a diameter smaller than that of the piston sliding portion is formed on the rod side of the cylinder tube 105. A first return spring 117 for pressing the floating piston 109 toward the piston 107 is mounted between the spring receiving hole 115 and the floating piston 109. Further, between the floating piston 109 and the piston 107, a second return spring 119 for pressing the floating piston 109 and the piston 107 in a direction to separate them from each other.
Is mounted.

The floating piston 109 and the piston 107
Between the first and the first, which receives fluid pressure such as air pressure or hydraulic pressure.
A pressure receiving chamber 121 is formed. A first port 123 for supplying or discharging the fluid pressure to the first pressure receiving chamber 121 is provided on the side surface of the cylinder tube 105. On the other hand, an annular groove 125 connected to the first port 123 is provided in the sliding engagement portion of the floating piston 109 with the cylinder tube 105 even if the floating piston 109 moves in the cylinder. A communication hole 127 for supplying fluid pressure from the annular groove 125 to the first pressure receiving chamber 121 is provided. Therefore, regardless of the position of the floating piston 109, the first port 123 and the first pressure receiving chamber 121 are in communication with each other.

A second pressure receiving chamber 131 is formed between the piston 107 and the cylinder cover 129. The second port 133 for supplying or discharging the fluid pressure to the second pressure receiving chamber 131 has the cylinder cover 12
It is provided in 9.

Next, the structure of the first cylinder 71 as the upper cutting piece pressing device 80 will be described. The first cylinder 71 is provided with a piston rod 135 for holding the cutting piece F in cooperation with the piston rod 89 of the second cylinder 69 so as to project from the cylinder tube 139. A piston 137 is movably provided on the cylinder tube 139 at the other end of the piston rod 135, and is pressed between the piston 137 and the rod side of the cylinder tube 139 in the direction in which the piston rod 135 is retracted. A return spring 140 is mounted. Further, a pressure receiving chamber 143 is provided between the piston 137 and the cylinder cover 141, and the cylinder cover 141 is provided with a port 145 for supplying or discharging a fluid pressure to the pressure receiving chamber 143.

The operation of the cut piece carrying-out device having the above-mentioned structure will be described below with reference to FIGS. 3 to 7.

In FIG. 3, after the cutting of the cutting piece F by the laser processing head 35 is completed, the second cylinder 69 and the first cylinder 71 of the cutting piece extracting mechanism 67 are simultaneously operated to sandwich the cutting piece F. It shows the state.

First, design conditions and operating conditions of the second cylinder 69 and the first cylinder 71 will be described. In the second cylinder 69 and the first cylinder 71, the second cylinder
First pressure receiving chamber 121 and second pressure receiving chamber 1 of the cylinder 69
When the pressure supplied to 31 is P _b and P _a, and the pressure supplied to the pressure receiving chamber 143 of the first cylinder 71 is P _c , the supply pressure is P _b > P _a , and the pressure P is _{When the} force generated on the piston rod 135 by _c is F _c and the force generated on the piston rod 89 by the pressure P _a is F _a , it is designed so that F _a > F _c .

For example, P _a = 3 kg / cm ² , P _b = 4 kg /
When designed so that cm ² , F _a = 15 kg, and F _c = 10 kg, the pressure P _{b in} the first pressure receiving chamber 121 causes the second pressure
The floating piston 109 of the cylinder 69 and the piston 107 of the piston rod 89 receive a force in a direction in which they separate from each other, and the piston rod 89 and the floating piston 109 move integrally. As a result, the piston 107
The floating piston 1 receives the upward force (F _a ) of 5 kg.
09 is moved to a position where it abuts against the annular stopper 113, and stops.

Therefore, the position of the piston rod 89 is restricted by the position where the floating piston 109 contacts the spring receiving hole 115 having a smaller diameter than the piston sliding portion of the cylinder 69. In the embodiment, the tip of the piston rod 89 at this time is set to come into contact with the back surface of the cut piece F. And the cutting piece F is 10 kg by the piston rod 135 and the piston rod 89.
Will be clamped by the force (F _c ).

FIG. 4 shows a state in which the laser processing head 35 is lifted and returned while the cutting piece F is clamped by a force of 10 kg.

In the state shown in FIG. 5, the cutting piece F sandwiched by the piston rod 135 and the piston rod 89 is cut by releasing the pressure P _b supplied to the pressure receiving chamber 121 of the second cylinder 69 to the atmospheric pressure. It shows a state in which the piece F is separated from the plate material W and moved to a certain distance H. Force to lift the cut piece F at this time is about 5kg in F _a -F _c. At this time, the piston 107 of the piston rod 89 advances to and stops at a position where it abuts on the floating piston 109 which is in abutment with the stepped portion of the spring receiving hole 115. Therefore, the position of the tip of the piston rod 89 can be maintained at a position where the cutting piece F is separated from the plate material W by a certain distance H.

FIG. 6 shows a state in which the cutting piece F located at a distance H from the plate W is held by the cutting piece holding device 103 of the maintenance cutting piece unloading mechanism 68.

FIG. 7 shows the piston rod 89 of the second cylinder 69 and the piston rod 135 of the first cylinder 71.
It shows the initial state of contracting. In order to achieve this initial state, the second pressure receiving chamber 13 of the second cylinder 69
The pressure P _a supplied to No. 1 and the pressure P _c supplied to the pressure receiving chamber 143 of the first cylinder 71 are simultaneously released to the atmosphere. At this time, the pressure P _{b in} the pressure receiving chamber 121 of the second cylinder 69 has already been released to the atmosphere, so the piston 107
The second return spring 119 causes the floating piston 109
At the same time as it is separated from, it moves integrally with the floating piston.

Therefore, the floating piston 109 is pushed by the first return spring 117, and the piston 107 is pushed back to the position where it abuts on the stepped portion of the cylinder cover 129. At this time, the tip of the piston rod 89 is set to be in the same position as the surface of the fixed table 11.

The cutting piece holding mechanism 67 has a cutting piece holding center, that is, the piston rod 89 and the piston rod 13.
When the distance between the cutting piece holding center of No. 5 and the laser processing head 35 in the X-axis direction is the cutting piece holding distance L, the cutting end position (E _p ) or the cutting start position (S _p ) is the plate material W.
It can be set at an arbitrary position of the plate material W if it is located at a position separated from the end portion in the X-axis direction by the cutting piece holding distance L or more.

FIGS. 8 and 9 are a side sectional view and a plan view of a second embodiment of a plate material processing apparatus using the plate material cutting piece unloading apparatus according to the present invention. In the plate material processing apparatus 200 according to the second embodiment, the same parts as those in the first embodiment are designated by the same reference numerals. The front-back, left-right, and X-axis, Y-axis, and Z-axis directional relationships of the plate material processing apparatus 200 are the same as those of the plate material processing apparatus 100 of the first embodiment.

The plate material processing apparatus 200 has the same main structure as the plate material processing apparatus 100, except for the cut piece unloading mechanism of the cut piece unloading device. Therefore, description of the same parts as the plate material processing apparatus 100 will be omitted, and only different parts will be described.

The cutting piece unloading mechanism 201 of the cutting piece unloading device of the plate material processing apparatus 200 uses a joint robot having a plurality of joints and arms similar to that of the first embodiment, above the rear surface of the upper face plate 7. Two Y-axis guide rails 203 provided on the
It is provided on the Y-axis carriage 207 which is guided by the Y-axis guide 205 which engages with the. This joint robot has 3
The first arm 2 is provided with two joints and two arms.
The shaft portion of the first joint 211 of 09 is pivotally supported by the Y-axis carriage 207. The first arm 209 is connected to the second arm 215 at the second joint 213, and this second arm 2
The fifteenth joint 217 is provided with a cutting piece gripping device 219 for gripping the cutting piece F.

The first joint 211 is provided with a first arm drive motor M1 and the second joint 213 is provided with a second arm drive motor M2. Further, the third joint 217 is provided with a drive motor M3 for rotationally driving the cutting piece gripping device 219, so that the cutting piece gripping device 219 can be rotationally driven to an appropriate position similarly to the arm. Further, the cutting piece gripping device 219 is provided with a drive motor M4 for rotating the cutting piece gripping device 219 in the horizontal direction in FIG. 8 (the direction parallel to the paper surface in FIG. 9). These drive motors M1
By appropriately controlling the drive of M4 to M4 by the CNC device, the cutting piece gripping device 219 can be brought into a desired position and posture.

A Y bearing for driving the Y-axis carriage 207 is mounted on a bearing (not shown) provided on the back surface of the upper face plate 7.
The shaft feed screw 221 is rotatably supported. This Y
The shaft feed screw 221 is arranged at a position substantially in the middle of the two Y-axis guide rails 203, and is screwed with a nut member 225 provided on the Y-axis carriage 207. And
A Y-axis drive motor 223 fixed to the upper face plate 7 is appropriately connected to one end of the Y-axis feed screw 221.

With the cut piece unloading mechanism 201 configured as described above, the cut piece gripping device 21 is controlled by appropriately controlling the drive of the Y-axis drive motor 223 by the CNC device.
9 at the same time as or separately from the laser processing head 35
It can be moved in the axial direction. Further, the cutting piece F can be held by setting the position and the posture of the cutting piece holding device 103 to a desired position and posture.

[0073]

As can be understood from the above description, according to the method for carrying out the cut pieces of the plate material of claims 1 to 3, the cut piece removing mechanism removes the cut pieces cut in the plate material processing device from the plate material. It is lifted and held at a separated and fixed position, and the lifted and held cutting pieces are gripped by the cutting piece gripping device of the cutting piece unloading mechanism and carried out to the stacking position, so that scratches or deformation caused by dropping the cutting pieces are prevented. It can be prevented. Further, even when the cut piece has a hole, the cut piece removing mechanism can avoid the position of this hole and hold it. Further, the material of the plate material that can be held is not limited to the magnetic material. Therefore, the finished product in the unloading process of the finished product does not become defective, and the number of working steps in the previous process is not wasted.

Further, according to the cutting piece carrying-out device of the plate material according to claims 4 to 8, the same effects as those of the above-mentioned claims 1 to 3 can be obtained, and the cutting cut from the plate material. Since the front and back sides of the piece can be sandwiched and lifted and held to a position above the transport position of the plate positioning device, the lifted and held cutting piece can be easily gripped by the cutting piece gripping device of the cutting piece unloading mechanism. it can. Therefore, the cut pieces can be efficiently carried out to the stacking position.

Since the plate material processing apparatus according to any one of claims 9 to 12 uses the plate material shaving device according to any one of claims 4 to 8, the plate material processing apparatus according to any one of claims 4 to 8 is used.
~ It is possible to obtain the same effect as that obtained by the invention of claim 8.

[Brief description of drawings]

FIG. 1 is a side sectional view of a plate material processing apparatus according to a first embodiment of the present invention, which uses a plate material removal device.

FIG. 2 is a plan view of a plate material processing apparatus according to a first embodiment of the present invention, which uses the plate material cutting piece unloading apparatus.

FIG. 3 is an enlarged detailed view illustrating the configuration and operation of a cutting piece extracting mechanism of the cutting piece unloading device.

FIG. 4 is an enlarged detailed view illustrating the configuration and operation of a cutting piece extracting mechanism of the cutting piece unloading device.

FIG. 5 is an enlarged detailed view illustrating the configuration and operation of a cutting piece extracting mechanism of the cutting piece unloading device.

FIG. 6 is an enlarged detailed view illustrating the configuration and operation of a cutting piece extracting mechanism of the cutting piece unloading device.

FIG. 7 is an enlarged detailed view illustrating the configuration and operation of a cutting piece extracting mechanism of the cutting piece unloading device.

FIG. 8 is a side cross-sectional view of a second embodiment of a plate material processing apparatus using the plate material cutting piece unloading device according to the present invention.

FIG. 9 is a plan view of a second embodiment of a plate material processing apparatus using a plate material cutting piece unloading device according to the present invention.

[Explanation of symbols]

 1 Main Frame 7 Upper Face Plate 9 Lower Face Plate 11 Fixed Table 15 Plate Material Positioning Device 35 Laser Processing Head 67 Cutting Piece Extraction Mechanism 68 Cutting Piece Carrying Out Mechanism 69 Second Cylinder 70 Lower Cutting Piece Pressing Device 71 First Cylinder 80 Upper Cutting Piece Pressing Device 89 piston rod 100 plate material processing device 103 cutting piece gripping device 135 piston rod 200 plate material processing device 201 cutting piece unloading mechanism 219 cutting piece gripping device F cutting piece LB laser light W plate material

Continuation of front page (51) Int.Cl. ⁶ Identification number Office reference number FI technical display area B65G 57/03 B65G 57/03 Z

Claims (12)

[Claims] 1. A plate material processing apparatus comprising a plate material positioning device and a processing head positioning means, and a cutting piece extracting mechanism for sandwiching the cut pieces cut by the plate material processing apparatus from the front and back sides to extract from the plate material, and the cutting. A cutting piece unloading mechanism having a cutting piece gripping device capable of gripping the cutting piece clamped by the piece extracting mechanism is provided, and the cutting piece after completion of cutting is sandwiched from the front and back by the cutting piece extracting mechanism and separated from the plate material. A method for carrying out cut pieces of a plate material, comprising lifting and holding the cut pieces at a fixed position, and holding the lifted and held cut pieces by a cut piece holding device of the cut piece carrying-out mechanism to carry them out to a stacking position. 2. The method for carrying out a cut piece of a plate material according to claim 1, wherein the plate material processing apparatus is a thermal cutting processing apparatus. 3. The method of carrying out a cut piece of a plate material according to claim 2, wherein the thermal cutting device is a laser processing device or a plasma arc cutting device. 4. A plate material processing apparatus comprising a plate material positioning device movable in the X-axis direction and a processing head positioning device movable in the Y-axis direction orthogonal to the X-axis direction,
An upper cutting piece pressing device that is movable in the Y-axis direction parallel to the moving direction of the processing head at a position close to the processing head is provided on the upper face plate of the main body frame, and the upper cutting piece is attached to the lower face plate of the main body frame. The Y is opposed to the pressing device.
An axially movable lower cutting piece pressing device is provided, a cutting piece pressing rod of the upper cutting piece pressing device is provided so as to press the surface of the cutting piece, and a cutting piece pressing rod of the lower cutting piece pressing device is attached to the cutting piece. And a position above the back surface of the cutting piece is positionably provided to form a cutting piece removing mechanism, and the cutting piece removing mechanism lifts and holds the cutting pieces to the stacking position at the upper position. A plate cutting piece unloading device, which is provided with a cutting piece unloading mechanism that can be carried out freely. 5. The plate material unloading device according to claim 4, wherein the chip material unloading mechanism is provided on an upper face plate of a main body frame of the plate material processing apparatus so as to be movable in the Y-axis direction. 6. The plate piece unloading device according to claim 4, wherein the cutting piece unloading mechanism is provided in a processing head positioning means that is movable in the Y-axis direction. 7. The cut piece carrying-out device for a plate material according to claim 4, wherein the plate material processing apparatus is a thermal cutting processing apparatus. 8. The plate piece unloading device according to claim 7, wherein the thermal cutting device is a laser beam machine or a plasma arc cutting device. 9. A plate material positioning device movable in the X-axis direction and a machining head positioning means movable in the Y-axis direction orthogonal to the X-axis direction are provided, and a position close to the machining head is located in the Y-axis direction. A movable upper cutting piece pressing device is provided on an upper face plate of the main body frame, and a lower cutting piece pressing device movable in the Y-axis direction is provided on the lower face plate of the main body frame so as to face the upper cutting piece pressing device. A cutting piece pressing rod of the upper cutting piece pressing device is provided so as to be able to press the cutting piece surface, and a cutting piece pressing rod of the lower cutting piece pressing device is provided between a back surface position of the cutting piece and a position above the back surface position. A cutting piece unloading mechanism that is positionable at two positions and is movable in the Y-axis direction is provided on the upper face plate of the main body frame, and the cutting piece pressing rod of the lower cutting piece pressing device and the upper cutting piece pressing A plate material processing apparatus, wherein cut pieces lifted and held at the upper position by a cut piece pressing rod of the apparatus are movably provided to a stacking position by the cut piece unloading mechanism. 10. The plate material processing apparatus according to claim 9, wherein the cutting piece unloading mechanism is provided in the processing head positioning means. 11. The plate material processing apparatus according to claim 9, wherein the plate material processing apparatus is a thermal cutting processing apparatus. 12. The plate material processing apparatus according to claim 11, wherein the thermal cutting apparatus is a laser processing machine or a plasma arc cutting apparatus.