JP3198280B2 - Plate processing machine - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a sheet material processing machine, in particular, a gap is formed immediately below an upper frame.
The present invention relates to a plate processing machine such as a laser processing machine or a punch press provided with a clamp for gripping a plate-shaped work.

[0002]

2. Description of the Related Art Conventionally, in a plate processing machine such as a laser processing machine or a punch press, a locating pin for setting an origin is provided at one end of a processing table, and a loaded plate-shaped work is brought into contact with the locating pin. By doing this, the origin is set, and after the origin is set, the workpiece is machined,
The operation of unloading the finished product is repeated.

[0003] The operation method of such a plate material processing machine is as follows.
It is well known that it is roughly divided into a line operation system and an offline operation system.

[0004] Of these, the line operation system is a system in which a work material is carried in and a product is carried out automatically by installing a work carry-in / out device around a plate material processing machine, and is exclusively suitable for mass production. It is a method.

On the other hand, in the off-line operation system, an operator carries several works, which are different from the work used in the line operation system, into the sheet material processing machine, sets the origin, and sets the finished product. It is a system that is carried out and is suitable exclusively for small-scale production.

In both cases, the latter, that is, the off-line operation method, requires a certain work space for the operator to set the origin and carry out the product, as described above.

For this reason, as shown in FIG. 6A, a work space S is usually used in front of a laser beam machine 100 which is an example of a plate material machine.

In FIG. 6A, a Y-axis abutment reference line YO
Assuming that the intersection point of the X-axis abutment reference line XO is the origin O, a locate pin 104 for setting the origin is provided on the processing table 103 of the laser beam machine 100 at the front end thereof.

An operator carries the work W into the laser processing machine 100 in the work space S, and
To the locate pin 104 to set the origin.

After the origin is set, the carriage 106 is moved to the left by rotating the ball screw 107, and the work W held by the clamp 105 is moved to the laser processing head 10 stored in the upper frame 101.
Process according to 8.

Then, the produced product is carried out by the worker himself in the work space S.

On the other hand, in the line operation system, as described above, it is necessary to install a loading / unloading device around the plate material processing machine, and usually, as shown in FIG.
00, the loading / unloading device 200 is
Is provided, that is, in front of the laser beam machine 100.

According to this method, the loading / unloading device 200
The plurality of works W stacked on the hydraulic lifter 204 are sucked one by one by the vacuum pad 203 of the loader 202, and the loader 202 is moved to the left along the loader rail 201, so that the work W is
00, and set to the origin by abutting on the locate pin 104.

After the origin is set, the work W gripped by the clamp 105 is processed by the laser processing head 108 stored in the upper frame 101, as in the off-line operation method (FIG. 6A). The resulting product is loaded and unloaded into and out of the laser processing machine 100.
00 by the loader 202.

[0015]

However, FIG.
The (B) line operation method has the following problems.
That is, as described above, in the method of FIG. 6B, the carry-in / out device 200 is installed in front of the laser beam machine 100.

However, in this case, the work space S shown in FIG. 6A is closed, and the space where the worker enters in front of the locating pin 104 is extremely narrow, the work efficiency is reduced, and the offline operation method is not practical. May not be implemented.

To solve this problem, a method shown in FIG. 6C has been attempted. This method uses the laser processing machine 10
In FIG. 6A, a work space S for the off-line operation method shown in FIG. 6A is sufficiently secured. Have been.

However, in general, the upper frame 101 of the plate processing machine accommodates a moving mechanism of a laser processing head 108 as shown in the case of the laser processing machine 100, and a ram drive in the case of a punch press. A mechanism and the like are stored.

For this reason, the upper frame 101 occupies a large space in the plate processing machine and is provided so as to straddle the lower frame 102 (FIG. 6B).

Therefore, in the method shown in FIG. 6 (C), the carry-in / out device 200 is obstructed by the upper frame 101, and it becomes difficult for the loader 202 to carry in the work material and carry out the product, so that carry-in and carry-out are performed automatically. Line operation system cannot be implemented.

An object of the present invention is to provide a line operation locating pin and an offline operation locating pin so that a loading / unloading device can be installed at the rear, a work space is secured at the front and shared for line operation and offline operation. It is an object of the present invention to provide a plate processing machine capable of performing such processing.

[0022]

According to the present invention, a clamp 1 has a gap 14 formed between an upper frame 11 and a processing table 13 and holds a plate-like work W.
6 is provided, (1) the locate pin C for off-line operation provided at the front end of the processing table 13, and (2) the locate pin C for off-line operation with respect to the upper frame 11. Loading means A for loading the work W through the gap 14 and reaching a predetermined region R on the processing table 13;
(3) a locating pin D for line operation provided near the outside of the work reaching area R; and (4) a work W provided above the work reaching area R and reaching the work reaching area R by the loading means B. Is transported toward the line-operating locating pin D, thereby having a transporting abutting means B for abutting against the pin.

Therefore, according to the structure of the present invention, as shown in FIG. 1, the carrying means A is provided behind the upper frame 11, and the line operating locating pin is located near the reaching area R of the work W by the carrying means A. By providing the transfer abutting means B above the work reaching area R, the work W can be carried in from the rear without being disturbed by the upper frame 11 and the origin can be set, so that the line operation becomes possible. In addition, a work space S is secured in the front, and furthermore, an offline operation can be performed by providing an offline operation locating pin C at the front end of the processing table 13, so that a sheet material processing machine that can be shared for line operation and offline operation is provided. Now offered.

[0024]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below with reference to the accompanying drawings according to embodiments. FIG. 1 is a perspective view showing an embodiment of the present invention.

FIG. 1 shows a laser beam machine 1 as an example of a plate material machine according to the present invention. As is well known, the laser processing machine 1 includes a lower frame 12.
And the upper frame 1 provided over the lower frame 12
1, and a processing table 13 provided over the entire lower frame 12. Further, a carrying-in means A, a transport abutting means B, a locate pin C for offline operation,
A line operating locate pin D is provided.

The upper frame 11 contains a mechanism for moving the laser processing head 53 in the Y-axis direction, a laser oscillator, and a power supply therefor.
A gap 14 is formed between the processing table 13 and the processing table 13.

In the following description, in FIG. 1, the side of the upper frame 11 where the locating pin C for off-line operation described later is provided will be referred to as the front, the front, the loader 40 or the like of the laser beam machine 1 or the like. And the opposite side of the upper frame 11 from the locate pin C for off-line operation is set to the rear, rear,
Or, it is the backward direction of the loader 40 or the like. In FIG. 1, the vertical direction of the laser beam machine 1 is defined as an X-axis direction, the horizontal direction is defined as a Y-axis direction, and the vertical direction is defined as a Z-axis direction.

At the right end of the working table 13, a locate pin C for off-line operation for setting the origin is provided as shown in the figure.

The locate pin C for off-line operation is
In short, when the worker performs an offline operation in the illustrated work space S, the work W carried in by the worker is
To set the workpiece W at the origin O1.

That is, the intersection between the Y-axis abutment reference line YO shown in FIG. 1 and the offline operation X-axis abutment reference line X1 is defined as the off-line operation origin O1, and the work W is set on this origin O1. The pin to be abutted is the above-mentioned locate pin C for offline operation.

Note that the Y-axis abutment reference line YO is
Is a reference line when the origin is set by abutting on the locate pin along the Y axis, and is a reference line common to the offline operation and the line operation described later.

The X-axis abutment reference line X1 for off-line operation is a reference line for setting the origin by abutting the workpiece W on the locate pin along the X-axis, and is a reference line dedicated to off-line operation. is there.

The locate pin C for off-line operation is
As is well known, the cylinder moves up and down by the action of a cylinder (not shown), and rises only when the origin is set, and protrudes from the machining table 13.

On the other hand, a ball screw 18 connected to a drive motor (not shown) is provided in parallel with the vertical direction (X-axis direction) of the processing table 13.
The carriage 17 of the clamp 16 for gripping the work W is engaged via a nut (not shown) built therein.

With this structure, when the ball screw 18 rotates, the work W is gripped by the clamp 16 and moves in the X-axis direction.

Further, a locating pin D for line operation is provided on the processing table 13 near the outside of the illustrated work reaching region R.

The work reaching area R is a limit where the work W which has entered the laser processing machine 1 by the carrying-in means A described later reaches the processing table 13.

That is, when the loading means A is provided behind the laser beam machine 1 (FIG. 1), the upper frame 11 is in the way and the loader 40 of the loading means A limits the reach of the workpiece W. Therefore, this limit is set as the work reaching region R as described above.

The line operating locate pin D is provided at a certain distance from the work reaching area R.

In short, the line operation locating pin D is used to set the workpiece W to the origin O2 when the line operation is automatically performed by the carrying-in means A and the transfer abutting means B described later. These pins are used to strike the work W.

That is, the intersection between the Y-axis abutment reference line YO and the line operation X-axis abutment reference line X2 is defined as the line operation origin O2, and the projection is performed to set the workpiece W to the origin O2. The pin to be applied is the above-mentioned line operation locate pin D.

It should be noted that the line operation X-axis abutment reference line X2
Is a reference line when the origin is set by abutting the workpiece W on the locate pin along the X axis, and is a reference line dedicated to line operation.

As is well known, the locate pin D for line operation moves up and down by the action of a cylinder (not shown), and rises only at the time of setting the origin.
3, and in the present embodiment,
As shown in the figure, the line operating locate pin D
It is provided along the X axis and the Y axis.

Further, above the work reaching area R,
As shown, a transport abutting means B is provided.

The transfer abutting means B has a function of transferring the work W, which has reached the work reach area R by the carrying-in means A described later, toward the line operating locate pin D and hitting the line operating locate pin D. In the embodiment shown in FIG. 1, it is constituted by a stand arm 20.

The column 21 of the stand arm 20 is fixed to the lower frame 12 of the laser beam machine 1 with screws (not shown) or the like.

The arm part 2 of the stand arm 20
As shown in FIG. 1, 8 extends straight from the support 21 in the Y-axis direction, and at the tip thereof, an oblique cylinder 25 for setting the origin, which is inclined with respect to the Y-axis, is attached. An upper and lower cylinder 23 for holding a work is attached to the oblique cylinder 25.

The oblique cylinder 25 is provided with an arm portion 28
The upper and lower cylinders 23 are fixed to the lower end of the oblique cylinder 25 at the distal end of the piston rod 29 of the oblique cylinder 25, as shown in FIG. Piston rod 2
A vacuum pad 27 for setting the origin is provided via 3A.

Thus, the stand arm 20 is
The work W that has reached the work reaching region R (arrow a) by the carry-in vacuum pad 40A (FIG. 2) of the loader 40 of the carry-in means A is re-adsorbed by the origin setting vacuum pad 27 and is moved obliquely. That is, it is moved in the direction b shown in the figure and hits the line operation locate pin D.

Further, at the tip of the stand arm 20,
The loader stop sensor 30 is attached via the attachment member 31 (FIGS. 1 and 2), and by detecting the end surface of the work W which has reached the work reaching region R, the loader rail 4 is detected.
The loader 40 traveling along 1 is stopped.

FIG. 3 is a view showing another embodiment of the transport abutting means B. The embodiment shown in FIG. 1 is the same as the embodiment shown in FIG. 1 except that a stand arm 20 having a column 21 having a structure similar to that of FIG.
0, and the upper and lower cylinders 23 are
5 in that a vacuum pad 27 for setting the origin is attached to the oblique cylinder 25, and the attachment position of the loader stop sensor 30 is also different from that in FIG.

That is, as shown in FIG. 3, the upper and lower cylinders 23 are fixed vertically to the distal end of the stand arm 20.
1, a loader stop sensor 30 is attached.

An oblique cylinder 25 is fixed to the tip of the piston rod 23A of the vertical cylinder 23.

Further, the oblique cylinder 25 has an L-shaped piston rod 26, and a vacuum pad 27 for setting the origin is provided at the tip of the L-shaped piston rod 26.

Therefore, unlike the embodiment of FIG. 1, the oblique cylinder 25 of FIG. 3 moves up and down according to the up and down movement of the piston rod 23A of the up and down cylinder 23, and the work reaching area R
Is sucked again by the origin setting vacuum pad 27, and the workpiece W is brought into contact with the illustrated line operation locate pin D (arrow b).

Next, the upper frame 11 of the laser beam machine 1
As shown in FIGS. 1 and 2, a loading means A is installed on the opposite side of the locate pin C for offline operation, that is, behind the upper frame 11, and the workpiece W is moved by the loading means A. Is carried into the laser processing machine 1 through the gap 14 of the above, and reaches the above-mentioned work reaching region R.

The loading means A has a housing 45,
5, a chain 42 having a plurality of pipe rollers 42A is provided on both sides in the X-axis direction, and a single loader rail 41 is provided above the chain 42.

A hydraulic lifter 44 is disposed between the two chains 42 at the bottom of the housing 45 so that a plurality of works W are stacked and raised and lowered.

The loader rail 41 extends above the transfer plate 46 to a position short of the upper frame 11 of the laser beam machine 1. The loader rail 41 includes a carry-in vacuum pad 40A and a carry-out clamp 40B. Is mounted so as to be able to run in the X-axis direction.

The loader 40 incorporates, for example, a motor (not shown), and a so-called self-propelled type in which a pinion (not shown) of a motor shaft engages with a rack (not shown) cut on the loader rail 41 to travel. It is.

A carriage 47 is arranged on the side of the housing 45 of the loading means A (FIG. 2), and a work W is stacked on the carriage 47.

The oblique cylinder 25 and the upper and lower cylinders 23 of the transfer abutting means B described above (FIGS. 1, 2 and 3) are, for example, hydraulic cylinders, and the origin setting vacuum pad 27 (FIGS. 1 and 2). 3) Further, the loading vacuum pad 40A of the loader 40 constituting the loading means A is (FIG. 2)
For example, it communicates with a vacuum pump (not shown).

Further, the above-described transport abutting means B is fixed to the lower frame 12 of the laser beam machine 1, but is not limited to this, and may be fixed to the loader 40 of the loading means A.

Hereinafter, the operation of the plate processing machine having the above configuration will be described.

In order to operate the laser beam machine 1 according to the present invention, the operation section 43 of the loading means A and the operation section 52 of the laser beam machine 1 are respectively operated, and the entire laser beam machine 1 is controlled by the control section ( (Not shown). In the following, the operation of the transport abutting means B shown in FIGS. 1 and 2 will be described.

I. In the case of line operation (1) Operation from loading of work W to setting of home position Preparation of corresponding work W in loading means A (FIG. 4)
(1)) First, the pipe roller 42A is retracted by circulating the chain 42 (FIGS. 1 and 2) of the loading means A, and the hydraulic lifter 44 is raised to just below the gap between the two chains 42, and the hydraulic pressure is increased. After the uppermost work W stacked on the lifter 44 is sucked by the loading vacuum pad 40A of the loader 40, the hydraulic lifter 44 is lowered.

In this state, the chain 42 is circulated in the opposite direction to advance the pipe roller 42A, so that the uppermost work W and the second work sucked by the loading vacuum pad 40A of the loader 40 are separated. In the meantime, by advancing the advanced pipe roller 42A, only the uppermost work W is separated (FIG. 4A), and the work W is supported by the pipe roller 42A (FIGS. 1 and 2).

The work W is carried in and reaches the predetermined region R (FIG. 4B). Next, the loader 40 sucking the left end of the uppermost work W
Is moved along the loader rail 41 (FIGS. 1 and 2) to enter the position just before the upper frame 11 of the laser beam machine 1 (FIGS. 1 and 2), and the work W is moved along the loading reference line P. (A) in FIG. 4 (2).

At this time, the right end of the work W sucked by the loader 40 is located at a position passing the gap 14 (FIGS. 1 and 2) and reaches the work reaching region R on the processing table 13. (FIG. 4 (2)), the loader stop sensor 30 attached to the stand arm 20 of the transport abutting means B detects this, and the loader 40 stops.

At this time, as shown in FIG. 4 (2), the work W is at a slight distance from the line operating locate pin D and has a gap.

When the work W reaches the work reaching area R, the transfer abutting means B operates the upper and lower cylinders 23 of the stand arm 20. In this way, the origin setting vacuum pad 27
By sucking the right end of the work W, and operating the oblique cylinder 25, the work W is conveyed toward the line operation locate pin D (arrow b in FIG. 4C).

At this time, the loading vacuum pad 40A of the loader 40 opens the left end of the work W,
0 recedes (arrow c in FIG. 4 (3)).

Workpiece W is further transported in the same direction b by the oblique cylinder 25 of the transport abutting means B (FIG. 4 (4)), and is abutted against the locating pin D for line operation. If so, the origin setting is completed.

At this time, the work W comes into contact with the line operation X-axis collision reference line X2 and the Y-axis collision reference line YO (FIG. 4).
(4)).

(2) Operation from Processing of Work W to Unloading Work Complete (FIG. 5 (1)) When the origin setting is completed, the carriage 17 is moved upward by rotating the ball screw 18 (FIGS. 1 and 2). The workpiece W held by the clamp 16 is processed by the laser processing head 53 (FIG. 1) by retracting to the gap 14 formed immediately below the frame 11.
By moving the carriage 17 forward, the workpiece W as a product returns to the original origin setting position while being held by the clamp 16 as shown in FIG.

Retreating of the carriage 17 and gripping of the work W by the loader 40 (FIG. 5 (2)) As shown in FIG. 5 (2), the carriage 17 is retracted in the direction of arrow d with the processed work W held. When the work W reaches the work reaching area R, the clamp 1
6. The work W is released from 6.

At the same time, the loader 40 is advanced as shown by the arrow e, and the unloading clamp 40B of the loader 40 is moved.
Grips the left end of the work W.

Unloading of Work W (FIG. 5 (3)) Finally, the loader 40 holding the work W is caused to travel along the loader rail 41 to the housing 45 constituting the loading means A (FIGS. 1 and 2). As a result (arrow f in FIG. 5C), the work W is unloaded from the laser processing machine 1 and is integrated as a product.

In the above description of the operations (1) and (2), the operation by the transport butting means B shown in FIGS. 1 and 2 has been described. However, the same effect can be obtained by the transport abutting means B shown in FIG. 3 or by the transport abutting means B fixed to the loader 40 described above.

Further, in (2), the work W is gripped by the clamp 16 and the carriage 17 is moved backward (FIG. 5).
Instead of the arrow d) of (2), the workpiece W is gripped by the vacuum pad 27 for setting the origin of the stand arm 20 of the transport abutting means B, and the oblique cylinder 25 is operated to move the workpiece W to the original work reaching area. Transport to R (Fig. 4
(State of (2)), and may be delivered to the loader 40.

That is, it is possible to use the transport abutting means B according to the present invention not only at the time of loading and unloading the work W.

II. In the case of offline operation (1) Operation from loading of work W to setting of the origin In the case of offline operation, in a work space S formed in front of the laser beam machine 1 (FIG. 4 (1)), the worker The work W which is different from the operation is
To the locating pin C for off-line operation to set the origin.

(2) Operation from Processing of Workpiece W to Unloading When the origin setting is completed, the ball screw 18 (FIGS. 1 and 2) is rotated to obtain (2) of “I. In case of line operation”. Work is performed on the work W by the same operation as described, and after processing, the work W returns to the original home position setting position. Therefore, the work W as a product that has hit the locate pin C for offline operation is moved to the work space S in the work space S. Workers carry out and accumulate.

In this way, using the processing head 53 in the upper frame 11, the clamp 16 and the like as common elements, the loading means A to the left from the line operating locate pin D in FIG.
Constitute the line operating unit I, and the line from the line operating locate pin D to the work space S to the right and beyond the offline operating locate pin C constitutes the offline operating unit II.

Thus, according to the present invention, there is provided a plate processing machine which can be used for both line operation and offline operation.

In the above embodiment, the laser processing machine 1 has been described in detail, but the present invention is not limited to this.
Needless to say, the present invention can be applied to other plate processing machines such as a bunch press.

[0087]

As described above, according to the present invention, a plate processing machine is provided with a locating pin for off-line operation provided at the front end and a loading means provided on the rear side of the upper frame opposite to the locating for off-line operation. And the line operating locating pin provided near the outside of the work reaching area by the carrying-in means, and the transfer abutting means provided above the work reaching area, so that it is carried in from behind without being disturbed by the upper frame. By setting the origin of the work, the line operation becomes possible, and by providing the loading means at the rear, a work space is secured in the front to enable off-line operation.

[0088]

[Brief description of the drawings]

FIG. 1 is a perspective view showing an embodiment of the present invention.

FIG. 2 is a plan view showing an embodiment of the present invention.

FIG. 3 is a perspective view showing another embodiment of the present invention.

FIG. 4 is an explanatory diagram of an operation from loading of a work to setting an origin according to the present invention.

FIG. 5 is an explanatory diagram of an operation from processing to unloading of a work according to the present invention.

FIG. 6 is an explanatory diagram of a conventional technique.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Laser processing machine A Carrying means B Conveying abutting means C Locating pin for offline operation D Locating pin for line operation 11 Upper frame 12 Lower frame 13 Processing table 14 Gap 15 Locating pin 16 Clamp 20 Stand arm 21 Column 23 Vertical cylinder 25 Diagonal cylinder 27 Origin Vacuum pad for setting 30 Loader stop sensor 31 Mounting member

──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int. Cl. ⁷ , DB name) B21D 43/02 B23K 37/00 B23K 37/04

Claims (3)

(57) [Claims] 1. A plate material processing machine in which a gap is formed between an upper frame and a processing table and a clamp for gripping a plate-like work is provided, wherein an off-line provided at a front end of the processing table. An operation locating pin, provided on a side opposite to the offline operation locating pin with respect to the upper frame, to carry in the work through the gap and to reach a predetermined area on the processing table; and near the outside of the work reaching area. A line operating locating pin provided, and a transfer abutment which is provided above the work reaching area and which reaches the work reaching area by the carrying-in means, is transported toward the line operating locating pin, thereby abutting on the line contact locating pin. Plate processing machine characterized by having means. 2. The transfer abutting means is constituted by a stand arm. An oblique cylinder having an origin setting vacuum pad is fixed to an end of the stand arm via an upper and lower cylinder, and a loader is stopped. The plate material processing machine according to claim 1, further comprising a sensor for mounting. 3. The transfer abutting means is constituted by a stand arm, and an upper and lower cylinder having an origin setting vacuum pad is fixed to an end of the stand arm via an oblique cylinder. The loader stop sensor is attached to the cylinder.
The plate processing machine described.