JP2003094132A - Work carrying-out method and device in plate material processing machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To reduce a tact time when a work is carried out and aim at an inexpensive and space-saving facility. SOLUTION: A work is processed by shifting a carriage base 29 of a plate positioning device in the Y axis direction, shifting at least more than three out of work clamping devices 33a to 33d independently along the X-axis guide rail 41 installed on the carriage base by being extended in the X-axis direction, and positioning a work W clamped by each work clamping device to a processing part 21 of the plate processing machine. During the work processing, in a condition that at least more than two work clamping devices continue to clamp the work, a processed work Ga is clamped by other clamping device at one end of the carriage base and carried out to a product transfer device 73 installed on the lower part of one end of the carriage base by being extended in the Y-axis direction without interrupting the work processing.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a work unloading method and an apparatus for a plate material processing machine.

[0002]

2. Description of the Related Art Conventionally, for carrying out a machined device in a plate material processing machine such as a punch press or a laser beam machine, the entire micro-worked work is carried out to a carry-out device, and then the micro joint is separated and the machine is taken out. , The products connected at the joints are separated by the separating punches provided in the plate material processing machine,
The separated product is carried out by a takeout device such as a vacuum pad type takeout loader.

[0003]

By the way, in carrying out a product in a conventional plate material processing machine, a carrying-out device and a separating device for the entire micro-jointed work are required, which requires a high equipment cost and a large space. There is. In the take-out device, it is necessary to stand by outside the plate material processing machine because it becomes an obstacle during processing the work.

Further, it is necessary for the take-out device to interrupt the processing while the separated product is being carried out, which takes a lot of tact time when the work is carried out, which impairs the high productivity of the plate processing machine. There was a problem.

Further, since the takeout device is large, there are problems that the cost of the equipment is high and that a large space is required.

The present invention has been made to solve the above-mentioned problems, and an object thereof is to reduce the tact time at the time of unloading a work, and at the same time, the work in a plate material processing machine which is inexpensive in terms of equipment and can save space. An object is to provide a carry-out method and an apparatus thereof.

[0007]

In order to achieve the above object, according to a first aspect of the present invention, there is provided a work piece unloading method for a plate material processing machine, wherein a carriage base of a plate material positioning device is set to Y.
While moving in the axial direction, at least three or more work clamp devices are independently moved along the X-axis guide rails extending on the carriage base in the X-axis direction orthogonal to the Y-axis direction. The plate-shaped work clamped by the work clamper of each work clamp device is positioned and processed with respect to the processing portion in the plate material processing machine, and at least two work clamp devices are used to clamp the work during the work processing. While continuing, clamp the machined work with the other work clamp device on one end side of the carriage base, and move the machined work to the one end side of the carriage base with the other work clamp device without interrupting the work machining. Move it and unclamp the machined workpiece to one end of the carriage base. Is characterized in that placing of the product transport apparatus provided to extend in the Y-axis direction downwards out.

Therefore, each work clamp device can run independently on the carriage base, and the product conveying device is provided at one end of the carriage base so as to extend in the Y-axis direction, so that the work machining is performed. With almost no interruption, the processed work (product) is clamped by the work clamp device on the product transfer device side, and can be easily carried out with reduced tact time. Since the plate material positioning device is used as it is also as a work unloading device, there is almost no facility cost and no new space is required.

According to a second aspect of the present invention, there is provided a work piece unloading device for a plate material processing machine, wherein a carriage base constituting a plate material positioning device for positioning a plate-like work on a processing table with respect to a processing portion of the plate material processing machine has a Y axis. The main body carriage is provided so that it can be moved and positioned in any direction, and an X-axis guide rail that extends in the X-axis direction orthogonal to the Y-axis direction is provided on the carriage base and that can travel in the X-axis direction along the X-axis guide rail. And at least three work clamp devices each including a work clamper provided on the main body carriage so as to be movable back and forth in the Y-axis direction and independently movable and positionable in the X-axis direction. It is provided so as to project outward from the edge of the processing table, and the processed workpiece is located below one end of this carriage base. The mounting to unloading can product transport apparatus is characterized in by comprising provided to extend in the Y-axis direction.

Therefore, as in the case of the first aspect of the invention, each work clamp device can independently travel on the carriage base, and the product conveying device extends in the Y-axis direction on one end side of the carriage base. Since it is provided as a work piece, the processed work (product) is clamped by the work clamp device on the product transfer device side with little interruption of the work processing, and can be easily carried out with reduced takt time. . Since the plate material positioning device is used as it is also as a work unloading device, there is almost no facility cost and no new space is required.

According to a third aspect of the present invention, there is provided a work piece unloading device for a plate material working machine according to the second aspect, wherein the linear motor stator is extended in the X axis direction on the X axis guide rail. The main body carriage is provided with a mover facing the stator.

Therefore, high-speed and high-responsiveness plate positioning and work unloading are possible.

[0013]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below with reference to the drawings.

Referring to FIGS. 1 and 2, for example, a turret punch press 1 as a plate material processing machine according to this embodiment has a gate-shaped main body frame 3, and the main body frame 3 includes a lower frame 5. The upper frame 7 is connected by the left and right side frames 9a and 9b, and the lower frame 5
A work space 11 is formed between the upper frame 7 and the upper frame 7.

The turret punch press 1 is provided with an upper turret 17 and a lower turret 19 on which a large number of punches 13 and dies 15 are detachably supported.
The upper and lower turrets 17 and 19 are provided so as to be synchronously rotated in the horizontal direction by a rotation driving means (not shown) so that a die including a desired punch 13 and a die 15 can be rotationally indexed to a processing center position 21. There is.

The upper frame 7 is provided with a ram 25 having a lower surface provided with a striker 23 for pressing the punch 13 indexed to the processing center position 21 by the rotation of the upper and lower turrets 17 and 19 so as to be vertically movable. There is. Although the driving means of the ram 25 is not shown, a known hydraulic driving method using a hydraulic cylinder or a known mechanical method using an eccentric crank mechanism can be used for the ram driving means.

On the right side in FIG. 2 of the working space 11,
That is, the plate material positioning device 27 is provided to the right of the upper and lower turrets 17 and 19. The plate material positioning device 27 includes a carriage base 29 that is movable in the Y-axis direction.
And a carriage 31 movable on the carriage base 29 in the X-axis direction, a work clamp device 33 mounted on the carriage 31, and the like.

The above-mentioned carriage base 29 is provided so as to extend to the outside of the lower frame 5 while straddling the fixed work table 35 provided on the lower frame 5 in the Y-axis direction, and is fixed to the carriage base 29. Side tables 37 that move integrally with the carriage base 29 on both sides of the work table 35 are provided. The fixed work table 35 and the side table 37 have work support surfaces of the same height.

The above-mentioned carriage base 29 is movably provided on Y-axis guide rails 39 provided on both sides of the lower frame 5, and is provided along the Y-axis guide rails, for example, an LDM type Y-axis linear. Y by motor 39
It is provided so that it can be positioned at any position in the axial direction.

On the carriage base 29, there is provided, for example, a guide rail support member 41 as an X-axis guide rail that is vertically long in cross section, for example, has an inverted T-shaped cross section and extends in the X-axis direction. A pair of guide rail portions 43 are provided on the left and right side surfaces of the lower portion of the guide rail support member 41 in FIG. 3 so as to extend in the X-axis direction. On the left and right side surfaces of the upper portion of the guide rail support member 41 in FIG. 3, for example, a stator 47 of an LDM type X-axis linear motor 45 is attached so as to extend in the X-axis direction.

At least three work clamp devices 33 are provided on the guide rail support member 41 so as to be movable in the X-axis direction. In this embodiment, the main body carriages 49a, 49b, 49c, 49d of the four work clamp devices 33a, 33b, 33c, 33d have a cross-sectional shape extending over the upper portion of the guide rail supporting member 41 to form a guide rail supporting member. It is movably engaged in the X-axis direction along the guide rail portion 43 via the lower guide member 51 of 41.

For the guide rail portion 43 and the guide member 51, for example, a linear motion bearing (commercially available product name LM guide) can be used.

Further, an X-axis linear motor is provided on the inner surface of each of the main body carriages 49a to 49d at a position facing the stator 47 of the guide rail support member 41 with a minute gap of 0.4 to 1.0 mm, for example. Forty-five movers 53 are attached.

As the stator 47 on the guide rail supporting member 41 side, for example, secondary permanent magnets are laid in two rows in the X-axis direction at a constant pitch. The two rows of the stators 47 are arranged in a “C” shape in order to maintain the linear directionality of the driving force. An electromagnet is used as the mover 53.

The work clamp devices 33 and the X-axis linear motor 4 in the plate material positioning device 27 described above.
5, the Y-axis linear motor 39 is connected to the controller 55 shown in FIG. 5, respectively.

With the above structure, a desired main body carriage 49 of the four main body carriages 49a to 49d is selected.
By driving the mover 53 (for example, 49b) based on a command from the control device 55, the main body carriage 49 (for example, 49b), that is, the work clamp device 33 (for example, 33b) is moved to a desired position on the X axis. Can be individually positioned.

In this case, the stator 47 of the X-axis linear motor 45 is located on the left and right side surfaces of the upper portion of the guide rail support member 41.
That is, the main body carriage 49 is attached so as to face the Z-axis direction, has a cross-sectional shape that extends over the upper portion of the guide rail support member 41, and the movable element 53 faces the stator 47 on the main body carriage 49. Since the main body carriage 49 is compact, it is attached to
It is possible to avoid such an adverse effect that the suction force of the stator 3 and the suction force of the stator 47 give the main body carriage 49 a flexure and hinder the traveling performance.

Since the linear DC motor (LDM) has high positioning accuracy and is capable of high-speed reciprocating motion and low-speed motion, high-speed and highly-responsive positioning and work of the work clamp of the plate material processing machine which requires high positioning accuracy. It is one of the linear motors that is suitable for carrying out.

Referring to FIGS. 3 and 4, the work clamp device 33 is mounted on each of the main body carriages 49a to 49d.
Work clamp retracting means 57 for retracting in the axial direction is provided. The work clamp retracting means 57 includes a slider 59 on which the work clamp device 33 is mounted, an avoidance guide 61 for guiding the slider 59 in the Y-axis direction, a retracting cylinder 63 for driving the slider 59, and the like.

The avoidance guides 61 are provided on the left and right of the slider 59 in FIG. 4, and the slider 59 is movable in the Y-axis direction along the avoidance guide 61 extending in the Y-axis direction. The escape cylinder 63 is provided above the slider 59, and the piston rod 65 of the escape cylinder 63 is connected to the main body carriage 49, so that the slider 59 is retracted by the operation of the escape cylinder 63. This retracted amount is, for example, 50 mm.

A clamp mounting member 67 is provided on the front wall surface of the slider 59, and the clamp mounting member 67 is provided with a known work clamper 71 for opening and closing the upper clamp jaw with respect to the lower fixed clamp jaw by a pneumatic cylinder 69. Has been.

Further, since the plate material positioning device 27 is used as the work transfer device of this embodiment,
One end side of the carriage base 29, for example, the right end side in FIG. 1, is projected rightward from the right end edge of the right side table 37. Below the projected portion, the turret punch press 1 has been processed. For example, a product transporting conveyor 73 as a product transporting device on which a work G (product) can be placed and carried out is provided extending in the Y-axis direction. That is, it is provided at a lower position along the right edge of the right side table 37.

On the upper frame 7, a sub-punch device 75 for separating the joint portion J connecting the work W and the product G is provided on one side (the right side in FIG. 1) in the X-axis direction with respect to the machining center position 21. Upper and lower turret 17,
It is located near 19. For example, in the sub-punch device 75, a sub-punch bracket is attached to the upper frame 7, the sub-punch bracket is provided with a sub-punch and a driving device for pressing the sub-punch, and the lower frame is provided with a die that cooperates with the sub-punch. ing. Further, a plate pressing device 77 for pressing the processed work G when the joint part MJ is separated by the sub punch device 75 is provided near the sub punch device 75.

Referring to FIG. 5, the control unit 55 has a CPU 79 as a central processing unit, and an input unit 81 and a display unit 83 for inputting data such as work information, die information to be used, and machining programs. And a memory 85 for storing the input data is connected.

Further, the CPU 79 is connected with a clamp device command section 87 which gives a command to clamp / unclamp the work W in the work clamp device 33 and to move the work clamp device 33 in the X-axis direction. There is.

Further, the above-mentioned clamp device command section 87 indicates to the other work clamps on one end side of the carriage base 29 that the work clamps by at least two work clamp devices 33 are continued during the machining of the work. There is provided a work unloading command section 89 for clamping the processed work G by the device 33 and giving a command to carry out the processed work G to the product transfer conveyor 73 provided below one end of the carriage base 29.

With the above-mentioned structure, FIG. 6 (A), (B),
Referring to (C), at least three workpieces W,
In this embodiment, the work is clamped by four work clamp devices 33 and punched. By this punching process, for example, the product Ga, which is the processed work G, is processed while being connected to the work W by the joint portion J.

Thereafter, as shown in FIG. 6 (A), the work W is moved and the joint portion J is positioned on the sub punch device 75, and then the product Ga is moved to the plate pressing device 7.
Hold down by 7. The joint portion J is cut by the sub punch device 75, and the product Ga is separated from the work W.

Next, as shown in FIG. 6B, the work W clamp device 3 on the product transfer conveyor 73 side.
3d unclamps the work W, and then the work W is a product G by the operation of the other work clamp devices 33a to 33c.
It is moved to the left side in FIG. 6B so as to be separated from a. On the other hand, the work clamp device 33d is moved to the position of the product Ga in the X-axis direction.

As shown in FIG. 6 (C), the carriage base 29 moves upward in the drawing in the Y-axis direction to clamp the product Ga by the work clamp device 33d, and the plate pressing device 77 collects the product Ga. Unclamped.

The work W is a work clamp device 33a-3.
The punching process is continuously performed by the operation of 3c, and the product Ga is held by the work clamp device 33d during the punching process.
As a result, the carriage base 2 is moved to the right in FIG. 6 (C).
9, the product Ga is unclamped by the work clamp device 33d, and the product Ga is conveyed to the right end side.
It is placed on top and transported in the Y-axis direction. In this case, even if the work W is moved in the Y axis direction when the work W is moved and positioned to the processing center position 21 by the work clamp devices 33a to 33c and the carriage base 29, the product transport conveyor 73 is extended in the Y axis direction. Therefore, the one end side of the carriage base 29 is always provided with the product transfer conveyor 73.
As the product Ga is located above, the product Ga is surely delivered onto the product transport conveyor 73.

When the product G is large, the two work clamp devices 33c, 33 on the product transfer conveyor 73 side are provided.
d can clamp the product G and carry it out onto the product transport conveyor 73.

As described above, each of the four work clamp devices 33a to 33d can run independently,
Moreover, since the product transfer conveyor 73 is provided at one end of the carriage base 29, the processed work G (product) can be easily and hardly interrupted.
It can be carried out with less tact time. Since the plate material positioning device 27 is used as it is also as a work unloading device, there is almost no facility cost and a large space for a takeout device is not required.

The present invention is not limited to the above-described embodiment, but can be implemented in other modes by making appropriate changes. In this embodiment, the turret punch press is described as an example of the plate material processing machine, but other punch presses, laser processing machines, and other plate material processing machines may be used.

Referring to FIG. 7, a plate material positioning device 27 of another embodiment is shown, and this plate material positioning device 27 is also applicable as a work unloading device. Portions similar to those of the plate material positioning device 27 of the above-described embodiment shown in FIG. 3 are denoted by the same reference numerals, and only different portions will be described.

A guide rail support plate 91 is provided on the carriage base 29, and a pair of X-axis guide rails 93 are provided on the guide rail support plate 91 at intervals in the Y-axis direction. Four carriages 95a, 95b, 95c, 95d are engaged with the X-axis guide rail 93 via a guide member 97 so as to be movable in the X-axis direction. The lengths of the carriages 95a to 95d in the X-axis direction are the same as the width of the work clamper 71.

Between the pair of X-axis guide rails 93 on the guide rail support plate 91, stators 99 (permanent magnets) of an LDM type linear motor are laid in two rows in the X-axis direction at a constant pitch. And the stator 99 on the side of the carriage 95.
The movable element 101 facing each other is fixed with a minute gap of 0.4 to 1.0 mm, for example.

Further, the work clamp saving means 103 is
The work clamper 71 includes a slider 105, a slide guide 107 that guides the slider 105 in the Y-axis direction, a cylinder 109 that drives the slider 105, and the like.

The slider 105 includes left and right side plates 111L and 11L whose side surfaces are in the Greek letter Γ (gamma) shape.
1R, a clamp mounting member 113 that integrally connects the front surfaces of the vertical arm portions of the side plates 111L and 111R, a connecting plate 115 that connects the rear surfaces of the horizontal arm portions of the side plates 111L and 111R, and a top plate 117 on the upper surface. It has an integrated framework structure. The horizontal arms of the side plates 111L and 111R are configured to engage with a pair of slide guides 107 provided on the upper surface of the carriage 95 and be guided in the Y-axis direction.

[0050]

As can be understood from the above description of the embodiment of the invention, according to the invention of claim 1, each work clamp device can be independently moved on the carriage base, and the carriage can be moved. Since the product transfer device is provided on one end side of the base so as to extend in the Y-axis direction, it is possible to easily and almost interrupt the work processing by clamping the processed work (product) by the work clamp device on the product transfer device side. Since there is no tact time, it can be carried out with less tact time. Since the plate material positioning device can be used as it is as a work unloading device, there is almost no facility cost and no new space is required.

According to the invention of claim 2, which is the same as the effect of claim 1, each of the work clamp devices can independently travel on the carriage base, and the product is conveyed to one end side of the carriage base. Since the device is provided extending in the Y-axis direction, the work clamp device on the product transfer device side clamps the processed work (product) easily and hardly interrupts the work processing, reducing the takt time. You can carry it out. Since the plate material positioning device can be used as it is as a work unloading device, there is almost no facility cost and no new space is required.

According to the third aspect of the present invention, it is possible to perform high-speed and highly responsive plate material positioning and workpiece unloading.

[Brief description of drawings]

FIG. 1 is a partial plan view of a turret punch press according to an embodiment of the present invention.

FIG. 2 is a schematic front view of the turret punch press according to the embodiment of the present invention.

FIG. 3 shows an embodiment of the present invention and is a side surface including a cross section of a main part of a plate material movement positioning device.

FIG. 4 is a front view seen from the left side of FIG.

FIG. 5 is a block configuration diagram of a control device.

FIG. 6A shows a state in which the product is separated from the joint portion during punching, and FIG. 6B shows a state in which the product is clamped by the work clamp device 33d.
(C) is an explanatory view showing a state where the product clamped by the work clamp device 33d is carried out.

FIG. 7 is a side view including a cross section of a main part of a plate material movement positioning apparatus according to another embodiment of the present invention.

[Explanation of symbols]

1 Turret punch press (plate material processing machine) 21 Processing center position 27 Plate positioning device 29 Carriage base 31 carriage 33a-33d Work clamp device 41 Guide rail support member (X-axis guide rail) 43 Guide rail part 45 X-axis linear motor 47 Stator 49a to 49d Main body carriage 53 mover 55 Control device 71 Work clamper 73 Product Transport Conveyor (Product Transport Device)

Claims (3)

[Claims] 1. A carriage base of a plate material positioning device is moved in the Y-axis direction, and at least three pieces are provided along an X-axis guide rail extending on the carriage base in the X-axis direction orthogonal to the Y-axis direction. The above work clamp devices are independently moved and the plate-like work clamped by the work clamper of each work clamp device is positioned with respect to the processing portion of the plate material processing machine to process the work. , While continuing the work clamping by at least two work clamping devices, the other work clamping device on one end side of the carriage base clamps the worked work, and the worked work is held without interruption. Move it to one end of the carriage base with the other work clamp device, and Work unloading method in plate material processing machine, characterized in that it requires the workpiece unclamped placing the product transport apparatus provided to extend in the Y-axis direction under the carriage base end side out. 2. A carriage base constituting a plate material positioning device for positioning a plate-shaped work on a processing table with respect to a processing portion of a plate material processing machine is provided so as to be movable and positionable in the Y-axis direction, and the carriage base is provided on the carriage base. An X-axis guide rail extending in the X-axis direction orthogonal to the Y-axis direction is provided, and a main body carriage that can run in the X-axis direction along the X-axis guide rail and a forward / backward movement in the Y-axis direction on the main body carriage are provided. At least three or more work clamp devices each including a work clamper are provided so as to be independently movable and positionable in the X-axis direction, and one end side of the carriage base is provided so as to project outward from the end edge of the machining table. A product transfer device capable of placing a processed work on the lower part of the one end side of the carriage base and carrying it out should be provided by extending in the Y-axis direction. A work unloading device for a plate material processing machine. 3. A stator of a linear motor extending in the X-axis direction is provided on the X-axis guide rail, and a mover facing the stator is provided on the main body carriage. The work unloading device in the plate material processing machine according to 2.