JPH081262A - Device for carrying-out work in metal plate machine - Google Patents

Abstract

PURPOSE:To decrease the space of a whole machine by making a partial clamp device among clamp devices freely moving forward and backward, moving to the neighborhood of the punching position, clamping a small product and conveying it. CONSTITUTION:When the size of a cut separated product Ws is small, the product Ws is clamped with a lower plate holding member and an upper plate holding member which are the plate holding members installed on a plate holding device, and the product Ws is floated up from the upper face of a chute table 39. The clearance between the back side of the product Ws and the upper face of the chute table 39 increases, and a lower jaw 123 of a move carrying out clamp 101B is made to advance easily. Then, when an approach 103 attached on the move carrying out clamp 101B is advanced to a turret punch press 1 side, reached the position of the product Ws without being disturbed from upper and lower turrets 5, 7, and the small product Ws can be clamped and carried out.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a work unloading device for a plate material processing machine, and more specifically, to a plate material processing machine capable of reliably clamping a processed product and carrying out a small product. Work removal device.

[0002]

2. Description of the Related Art Conventionally, as a plate material processing machine equipped with a sub-punch for cutting contours of small products, for example, Japanese Patent Laid-Open No. 1-133 is known.
The structure described in Japanese Patent No. 625 is known. That is, in a turret punch press as a plate material processing machine, a sub-punch for cutting a contour of a small product is provided on the side of a processing position of a turret.

Further, as an example of a model for performing contour cutting of a product by a contour cutting sub-punch of a small product or a laser, an example of a laser / punch press complex machine is described in, for example, Japanese Utility Model Publication No. 4-286666. The structure is known.

That is, the laser processing position for cutting the contour of the product with the laser is provided immediately before the processing position of the turret.

Of the above-mentioned two conventional examples, in the case where the former sub-punching sub-punch for cutting small products is provided on the side of the machining position of the turret, the width of the turret punch press machine main body for moving the work to the sub-punch position. Is taken large. Further, in the latter configuration for performing contour cutting of a product with a contour cutting subpunch for a small product or a laser, it is necessary to increase the width of the machine body because the subpunch or laser processing position is provided immediately before the turret processing position. There is no, and the length of the machine body is slightly longer.

[0006]

By the way, in the conventional plate material processing machine which performs contour cutting of a product by the contour sub-punch for cutting a small product or a laser described above, when a product is carried out, a clamp provided in the product gripping and conveying device is used. The device cannot reach the position of the cutting sub-punch or the position of the laser processing head. Therefore, there is a problem that only a product having a size larger than the radius of the turret can be carried out.

Further, in the case of laser cutting, since the perpendicularity of the cut surface of the work is required, the height from the table upper surface of the plate processing machine to the apex of the work supporting free bearing is adopted in the punch press. It is set lower than the height from the top surface of the table to the top of the work support free bearing. For this reason, when the carried product is clamped by the clamp device, it is difficult to allow the lower jaw of the clamp device to enter the lower surface of the product.

Further, when the separated small products are clamped by the clamp device, when the small products are pushed and moved by the clamp device even in a small amount, they are clamped in the product stacking device and loaded. There was a problem that the collection position was shifted.

An object of the present invention is to provide a work unloading device of a plate material processing machine which facilitates gripping of a product by a clamp device, accurately positions and collects the product in the product stacking device, and can carry out a small size product. To do.

[0010]

In order to achieve the above object, a work unloading device of a plate material processing machine according to the present invention is a plate material processing machine provided with a material carry-in device and a product accumulating device in parallel to produce a product. A product gripping and conveying device provided with a clamp mounting body is provided with a plurality of clamp devices that grip and horizontally move in the front-rear direction between the plate material processing machine and the product stacking device, and horizontally move in the left-right direction. Part of the clamp device is provided so as to be movable in the front-rear direction with respect to the clamp mounting body, and is provided so as to be able to enter the inside from the diameter of the turret provided in the plate material processing machine. It is a thing.

Further, the work unloading device of the plate material processing machine of the present invention is provided with a product contour cutting device for cutting the product contour by a sub-cutting punch or laser cutting immediately before the processing position of the plate material processing machine. It is characterized in that a plate pressing device is provided in the vicinity of the cutting device to hold the cut product in a pressure and float above the table surface supporting the product.

In the work unloading device of the plate material processing machine, the plate pressing device clamps plate pressing members which are vertically opposed to each other by fluid pressure actuated cylinders so that the upper plate pressing member has a diameter smaller than that of the cylinder. It is desirable that the cylinder diameter for pushing up the lower plate pressing member be large.

[0013]

With the use of the work unloading device of the plate material processing machine as described above, a small product whose contour is cut by a sub-cutting punch or laser cutting provided immediately before the processing position of the plate material processing machine It is floated from the table surface while being held by the pressing device. This floating small product can be easily clamped without moving the position by moving a part of the clamp devices provided in the product gripping device forward and backward and hitting the small product. When the product is gripped, the product gripping and conveying device is moved backward to accurately position the product in a predetermined position of the product stacking device and stack small products.

Further, a relatively large product is gripped by the fixed clamp device of the clamp devices, but the pushing device provided on the front side table is operated to float the product above the table surface and grip it by the clamp device. Then, the product gripping / conveying device is retracted, and the products are accurately positioned at a predetermined position of the product stacking device to stack the products.

[0015]

Embodiments of the present invention will be described below in detail with reference to the drawings. A turret punch press equipped with a work loading / unloading device was adopted as a plate material processing machine, but since it has a known structure, detailed illustration and description thereof will be omitted.

Referring to FIG. 1, a turret punch press 1 is provided with a lower turret 7 at a lower portion thereof, which faces an upper turret 5 inside a gate-shaped frame 3 (a part of which is not shown).
It is mounted rotatably in synchronization with a rotating shaft. A large number of upper molds 9 are mounted on the upper turret 5, and a large number of lower molds 11 facing the upper mold 9 are mounted on the lower turret 7. A ram (not shown) is provided on the upper part of the gate-shaped frame 3, and the upper die 9 is hit by the vertical movement of the ram, and the upper die 9 and the lower die 11 cooperate with each other to punch a work. Is applied. Reference numeral 13 is a punching position.

A fixed table 1 is provided in the portal frame 3.
5 is provided, and a movable table 17 including a front side table 17F and a rear side table 17R is movably provided on both sides of the fixed table 15. A plurality of clean bearings 19 are arranged on the fixed table 15, the front side table 17F and the rear guide table 17R.

The front side table 17F and the rear side table 17R are integrally connected by a carriage base 21 extending in the front-rear direction (the left-right direction in FIG. 1) while straddling the fixed table 15. The carriage base 21 is movable in the left-right direction (vertical direction in FIG. 1) by rotation of the screw member 25 connected to the drive motor 23.

A carriage 27, which is movable in a direction orthogonal to the moving direction of the movable table 17, is screwed onto a screw member 29 on the carriage base 21, and the screw member 29 is screwed.
A driven gear 35 locked to the output shaft of the drive motor 33 is meshed with a driven gear 31 locked to one end of the.

When the drive motor 33 is driven by the above structure, the drive gear 35, the driven gear 31, and the screw member 29.
The carriage 27 is movable in the front-rear direction via the.

The carriage 27 has a plate-shaped work W.
A plurality of clamp devices 37 that can hold one side edge portion are mounted so that the position thereof can be adjusted in the front-rear direction. Further, the fixed table 15 is provided with a shooter table 39 immediately before the punching position 13, and a plate pressing device 41 is mounted on the shooter table 39, and a product contour is provided in the vicinity of the plate pressing device 41. Product contour cutting device for cutting 4
3 is provided. The product contour cutting device 43 comprises a sub-cutting punch or a laser cutting device,
Since the sub-cutting punch or the laser cutting device is already known, the description and illustration thereof are omitted.

A material carry-in device 45 and a product collecting device 47 are provided adjacent to the front side table 17F. More specifically, referring also to FIG. 2, the material carrying-in device 45 is mounted on a material pallet 53 mounted on a lifter device 51 that is movable up and down by, for example, a hydraulic cylinder provided in a frame 49. The loaded materials W are carried into the turret punch press 1 side.

That is, the uppermost material W placed on the lifter device 51 is suction-held by a plurality of vacuum pads 55, which are one member of the material loading device 45. The vacuum pad 55 is vertically provided on a plurality of support arms 57, and the support arms 57 are provided on a main trunk 59 extending in the front-rear direction so as to project in a plurality of positions in the left-right direction.

The main shaft 59 is a fluid pressure cylinder 61.
The ring 61 is provided vertically to the support member 63, and the support member 63 is supported by a guide rail or the like extending in the front-rear direction although not shown. A screw member 65 extending in the front-rear direction is screwed into a nut member (not shown) built in the support member 63, and the screw member 65 is formed.
A drive motor 67 fixed to the frame 49 is connected to one end of the.

With the above structure, the lifter device 51 is appropriately raised, the drive motor 67 is driven to rotate the screw member 65, and the vacuum pad 55 is positioned directly above the material W placed on the lifter device 51.

Then, the cylinder 61 is operated, the material W is adsorbed and held by the vacuum pad 55, raised appropriately, and the drive motor 67 is driven again to move the material W onto the front side table 17F of the turret punch press 1. And release the adsorption. Then, the clamp device 37
Then, the clamp is changed to position the processing portion of the material W at the punching processing position 13 and punching processing is performed.

The product stacking device 47 is one in which products W _S are loaded on a product pallet 71 mounted on a lifter device 69 which is vertically movable by, for example, a hydraulic cylinder provided in the frame body 49.

The product W _S separated by the sub-cutting punch or the laser cutting device which is the product contour cutting device 43.
As shown in detail in FIG.
Is provided on the shooter table 39, and a large diameter fluid pressure operated cylinder 7 is provided on the back surface of the shooter table 39.
3 is installed vertically. A lower plate pressing member 77 forming a plate pressing member 76 is provided on the upper end of a piston rod 75 provided on the cylinder 73, and is lifted and floated above the upper surface of the shooter table 39 by the operation of the cylinder 73.

On the other hand, above the lower plate pressing member 77, a fluid pressure operated cylinder 79 having a diameter smaller than that of the lower surface of the gate frame 3 is provided so as to face the lower end of a piston rod 81 provided on the cylinder 79. An upper plate pressing member 83 constituting the plate pressing member 76 is provided in the upper plate pressing member 76, and the upper plate pressing member 83 is vertically movable by the operation of the cylinder 79.

With the above structure, W _S separated by the product contour cutting device 43 simultaneously activates the large diameter cylinder 73 and the small diameter cylinder 79, and the lower plate pressing member 77 and the upper plate pressing member 83 operate. When the product W _S is held, the pushing force of the large diameter cylinder 73 is higher than that of the small diameter cylinder 79, so that the product W _S can be floated above the upper surface of the shooter table 39. The floating product W _S is conveyed to the product accumulating device 47 side by the product gripping and conveying device 85, which is a work unloading device described later, and the product W _S is accumulated.

Referring to FIGS. 1 and 4 together, the product gripping and conveying device 85 has a carriage base 8 on a guide rail 87 extending in the front-rear direction (left-right direction in FIGS. 1 and 4).
9 is movably supported in the front-rear direction. The carriage base 89 is screwed into a screw member 91 extending in the front-rear direction, and the frame member 4 is attached to one end of the screw member 91.
It is connected to a drive motor 93 fixed to 9.

With the above structure, when the drive motor 93 is driven, the screw portion 91 rotates, and the carriage base 89 screwed to this screw member 91 becomes movable in the front-rear direction.

The carriage base 89 has rails 9
5 is laid so as to extend in the left-right direction (vertical direction in FIGS. 1 and 4), and a clamp attachment body 99, which is a member of the clamp device 97, is engaged with the rail 95. The clamp mount 99 is provided with a plurality of unloading clamps 101, a plurality of fixed unloading clamps 101A is provided farther from the punching processing position 13, and a plurality of fixed unloading clamps 101A is provided closer to the punching processing position 13. The moving-out clamp 101B is provided.

The movable carry-out clamp 101B is provided on an L-shaped approach 103, the approach 103 is mounted orthogonal to the clamp mount 99, and a rack 105 is fixed in the front-rear direction of the approach 103.
A pinion (not shown) meshes with the rack 105, and the pinion is fixed to the output shaft of the drive motor 107 fixed to the clamp mount 99.

With the above structure, when the drive motor 107 is driven, the rack 105 moves in the front-rear direction via the pinion. The movable carry-out clamp 101B is moved in the front-rear direction by the movement of the rack 105.

Further, a plurality of push-up devices 109 are provided below the clamp device 97 on the upper surface of the front side table 17F. More specifically, FIG. 1 and FIG.
Referring also to FIG.
A push-up member 117 is provided on an upper end of a piston rod 115 provided in a fluid pressure cylinder 113 that is erected on the upper side of the vehicle 11. Has been inserted into.

With the above structure, when the cylinder 113 is operated, the push-up member 117 is moved to the front side table 1.
It passes through the through hole 119 formed in 7F and projects from the upper surface of the free bearing 19 provided in the front side table 17F. Therefore, the product W _S placed on the upper surface of the free bearing 19 floats, and the product W _S can be reliably clamped by the fixed discharge clamp 101A which is the clamp device 97.

The fixed unloading clamp 101A and the movable unloading clamp 101B are constructed such that the lower jaw 1 is integrated with the block body 121 as shown in FIG.
23 is provided, and an upper jaw 125 is provided so as to be vertically movable relative to the upper surface of the lower jaw 123. The upper jaw 125 is provided at the lower end of a piston rod 129 suspended from a fluid pressure operated cylinder 127 provided on the upper surface of the block body 121.

With the above structure, when the cylinder 127 is operated, the upper jaw 125 and the lower jaw 123 can cooperate to clamp the product W _S.

With the configuration as described above, the operation is as follows: the vacuum pad 55 is the uppermost one of the materials W placed on the material pallet 53 provided in the lifter device 51.
Adsorb and lift. Then, the front side table 1 in which the material W adsorbed to the vacuum pad 55 by driving the drive motor 67 is provided on the turret punch press 1 is used.
7F is moved to release the suction and placed on the front side table 17F. The transferred material W is gripped by the clamp device 37 and subjected to desired punching.

After punching, the contour of the product W _S is separated from the material W by a sub-cutting punch or laser which is the product contour cutting device 43.

When the size of the separated product W _S is small, as shown in FIG. 6, the lower plate pressing member 77 and the upper plate pressing member which are the plate pressing members 76 provided in the plate pressing device 41. When the product W _S is sandwiched by 83 and the product W _S is levitated from the upper surface of the shooter table 39, the gap from the back surface of the product W _S to the upper surface of the shooter table 39 becomes large, and the lower jaw of the moving-out clamp 101B is increased. 123
Will be easier to enter. Then, the moving-out clamp 10
When the approach 103 mounted by 1B is advanced to the turret punch press 1 side, it reaches the position of the product W _S without being obstructed by the upper and lower turrets 5 and 7, and the small product W _S can be gripped and carried out. .

[0043] If the size of the products W _S was disconnected is high, when floating the product W _S raises the push-up member 117 provided on the push-up device 109, the rear surface of the product W _S and the front side table 17F Free bearings provided 19
A gap is formed on the upper surface of the lower jaw 123, which facilitates the entry of the lower jaw 123 provided in the fixed unloading clamp 101A, and reliably clamps the product W _S by the fixed unloading clamp 101A to drive the drive motor 93. The clamp device 97 is retracted by driving. Then, the product W _S is positioned at a predetermined position of the product pallet 71 which is the product accumulating device 47, and the fixed unloading clamp 101A is unclamped to accumulate the product W _S on the product pallet 71.

Since the product W _S is levitated by the plate pressing device 41 or the lifting device 109 for both large and small W _S , the fixed carrying-out clamp 101A and the moving-out carrying clamp 101B, which are the carrying-out clamps 101, can be used. lower jaw 123 which is provided, since there is no abuts against the end edge of the product W _S, never clamp position of the products W _S is deviated.
Therefore, the product pallets 71 can be accurately stacked at a desired position without displacement.

Thus, the product contour cutting device 43 can be installed at the same width position as the punching processing position 13, the space of the whole machine can be reduced, and the product contour cutting device 43 can be installed.
In the case of the sub-punch cutting, the cutting tonnage of the sub-punch can be increased, and the contour cutting of the thick plate can be performed.

The present invention is not limited to the above-described embodiments, but can be implemented in other modes by making appropriate changes.

[0047]

As will be understood from the above description of the embodiments, according to the present invention, the separated product is floated from the table upper surface by the plate pressing device or the lifting device and provided in the product gripping and conveying device. Clamp with the clamp device. Therefore, the clamp device can easily enter the lower surface of the product, and the product can be accurately positioned and accumulated in the product accumulating device because of the positional deviation without pushing the product by the clamp device.

Further, some of the clamp devices can be moved in the front-rear direction and moved to the vicinity of the punching position so that small products can be carried out by the clamp. Therefore, the product contour cutting device can be installed at the same width position as the punching position, and the space of the entire machine can be reduced.

[Brief description of drawings]

FIG. 1 is an overall plan view showing a main part of the present invention, showing a turret punch press, material loading, and a product stacking device and product unloading device.

FIG. 2 is an enlarged front explanatory view of a II arrow portion in FIG.

FIG. 3 is an enlarged cross-sectional view taken along the line III-III in FIG.

FIG. 4 is an enlarged plan view of an IV arrow portion in FIG.

5 is an enlarged cross-sectional view taken along the line VV in FIG.

FIG. 6 is an operation explanatory view showing a small product unloading state in the present invention.

[Explanation of symbols]

1 Turret punch press (plate material processing machine) 5 Upper turret 7 Lower turret 13 Punching position 17F Front side table 39 Shooter table 41 Plate pressing device 43 Product contour cutting device 45 Material loading device 47 Product accumulating device 73 Cylinder 76 Plate pressing member 77 Lower plate pressing member 79 Cylinder 83 Upper plate pressing member 85 Product gripping / conveying device 97 Clamping device 99 Clamp mounting body 101A Fixed unloading clamp 101B Moving unloading clamp 109 Pushing up device 117 Pushing up member W Material W _S product

Claims (3)

[Claims] 1. A plate material processing machine provided with a material loading device and a product stacking device in parallel, holding a product and horizontally moving in the front-back direction between the plate material processing machine and the product stacking device, and A product gripping and conveying device having a plurality of clamp devices that horizontally move in the left-right direction is provided in the clamp mounting body, and a part of the plurality of clamping devices is provided so as to be movable in the front-rear direction with respect to the clamp mounting body. In addition, the work unloading device of the plate material processing machine is characterized in that the turret provided in the plate material processing machine is provided so as to be able to enter inside thereof. 2. A product contour cutting device for cutting a product contour by a sub-cutting punch or laser cutting is provided immediately before a processing position of a plate material processing machine, and the cut product is clamped in the vicinity of the product contour cutting device. A work unloading device for a plate material processing machine, which is provided with a plate pressing device which holds and floats a product above a table surface. 3. The plate pressing device is a cylinder in which plate pressing members provided so as to face each other vertically are clamped by a fluid pressure operated cylinder, and a lower plate pressing member is pushed up by a cylinder diameter for pressing down the upper plate pressing member. The workpiece unloading device for a plate material processing machine according to claim 2, wherein the diameter is large.