JPH08281356A - Plate working device - Google Patents

Abstract

PURPOSE: To enable a large hole to be made on a plate material after bending by providing a spacer in an upper jaw comprising a clamp device and providing a space to escape the flange part of a rising plate between the upper and lower jaws. CONSTITUTION: A plate material with a flange part bent upward through bending is fed, abutted on a patch 81 and positioned. When a piston rod 75 is pulled up by operating a cylinder 73 by fluid pressure, the upper jaw 67 oscillates counterclockwise with a spacer 79 pressurizing the plate material and fixedly holding it. At that time, a space S is formed between the lower jaw 65 and the upper jaw 67. Consequently, the plate material with the flange part worked by bending is easily clamped without interfering due to the space S formed between the lower jaw 65 and the upper jaw 67.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a plate material processing apparatus, and more particularly, to a plate material processing line including a pre-stage punch press, a bending press and a post-stage punch press. The present invention relates to a plate material processing device provided with a clamp device for gripping, a plate material feeding device for loading and unloading a plate material, and a plate material clamping means provided on the plate material unloading side.

[0002]

2. Description of the Related Art Conventionally, after punching with a punch press,
A line configuration in which a bending process is performed using an ironing and bending machine is generally adopted. At that time, in the ironing and bending machine, the work center is clamped by a manipulator for processing.

[0003]

By the way, in the bending line constituted by the conventional punch press and the ironing and bending machine described above, when the plate material is subjected to the large hole processing by the punch press provided in the preceding stage, the ironing is performed. The manipulator that supplies the plate material to the bending machine cannot clamp it. Therefore, a step of performing micro-joint processing or wire-joint processing and removing the micro-joint portion or wire-joint portion after processing is inevitable.

The object of the present invention is to process a large hole after bending, eliminate the need for a micro joint or a wire joint, do not need to program a bending press in consideration of the position of the large hole, and perform punch press processing after bending. It is an object of the present invention to provide a plate material processing apparatus capable of allowing a bent plate material to pass through a post punch press when there is no need.

[0005]

In order to achieve the above object, a plate material processing apparatus of the present invention according to claim 1 is a plate material processing line including a front punch press, a bending press and a rear punch press, and the rear stage A punch press is equipped with a clamp device that grips and conveys the plate material, and a spacer is provided in the plate material gripping part of the upper jaw that constitutes this clamp device, and a gap is provided between the upper jaw and the lower jaw to allow the rising flange part of the plate material to escape. It is characterized by being provided.

The plate material processing apparatus of the present invention according to claim 2 is a plate material processing line including a front-stage punch press, a bending press and a rear-stage punch press, and a side table for loading and unloading the plate material of the rear-stage punch press. It is characterized in that the plate material feeding device is provided in the.

Further, in the plate material processing apparatus of the present invention according to claim 3, the plate material feeding device provided on the side table on the plate material carrying-in side is provided with a plurality of rotatably movable members which are capable of projecting and retracting on the upper surface of the side table. It is desirable that it is composed of a magnet roller.

Still further, in the plate material processing apparatus of the present invention according to claim 4, the plate material feeding device provided on the side table on the plate material unloading side is constituted by providing a plurality of rotatable unloading rollers on the side table. Is desirable.

Still further, the plate material processing apparatus of the present invention according to claim 5 is a plate material processing line comprising a pre-stage punch press, a bending press and a post-stage punch press, and the side table on the plate material carrying-out side of the post-stage punch press. It is characterized in that a clamping means for clamping the plate material from above and below is provided.

Still further, in the plate material processing apparatus of the present invention according to claim 6, the clad pressure means is provided with a fluid pressure operated cylinder for vertically moving an upper plate material retainer in the frame of the latter punch press, and the upper plate material is A lower plate material retainer is provided on the fixed table so as to face the retainer, and a fluid pressure operated cylinder for vertically moving the lower plate retainer,
Is desirable.

[0011]

With the plate material processing apparatus according to claim 1 as described above, a clamping device for gripping and conveying the plate material to the latter punch press of the sheet material processing line constituted by the former punch press, the bending press and the latter punch press is provided. It is provided. Since a spacer is attached to the gripping portion of the upper jaw which constitutes this clamp device and a gap is formed between the upper and lower jaws, even if the flange rising portion of the plate material is formed by the bending press, the rising portion has the above gap. Can enter and grip the plate material.

Therefore, when a large hole is formed in the plate material,
There is no need to perform micro joint processing or wire joint processing, and there is no need to set up a bending press program in consideration of the large hole position.

With the plate material processing apparatus according to the second, third, and fourth aspects, a magnet roller is rotatably provided on the carry-in side table of the punch press in the latter stage, and the plate material is carried by the magnet roller. Further, a carry-out roller is provided on the carry-out side table of the punch press at the latter stage, and the processed plate material is carried out by the carry-out roller. Therefore, when the plate material bent by the bending press does not need to be processed by the post punch press, the processed plate material can be carried out through the post punch press.

Further, by using the plate material processing apparatus according to the fifth and sixth aspects, the plate material is operated by a fluid pressure operated cylinder that vertically presses the plate material on a fixed table adjacent to the discharge side table of the latter punch press. Since the lower plate material retainer is provided, the plate material is clamped by the upper and lower plate material retainers when processing is completed and the plate material is released from the clamp device, so that the plate material does not shift on the fixed table and the occurrence of flaws is prevented. .

[0015]

Embodiments of the present invention will be described below in detail with reference to the drawings.

First, the structure of the plate material processing line will be briefly described. It should be noted that since each device provided in this plate material processing line has a known configuration, detailed illustration and description thereof will be omitted.

Referring to FIG. 16, a plate material processing line 1
Is a pre-stage punch press 1 equipped with an automatic warehouse 3, a plate material carrier 5, a plate material single-picking device 7, and a plate material clamp device 9.
1, the ironing / bending machine 13, the post-stage punch press 17 including the plate material clamp device 15, and the plate material unloading device 19.

With the above structure, a desired plate material is taken out of the plate materials stored in the automatic warehouse 3, is placed on the plate material carrier 5, and is carried into the plate material single-piece removing device 7. The topmost sheet material of the sheet materials stacked on the carrier 5 is taken out by the single sheet material removing device 7 and carried into the pre-stage punch press 11. The plate material carried into the former punch press 11 is grasped by the plate material clamp device 9, positioned at a desired position, and punched.

The plate material punched as desired by the pre-stage punch press 11 is carried into the ironing / bending machine 13, and the plate material is bent by the ironing / bending machine 13, and the processed plate material is punched in the post-stage punching machine. After being carried into the press 17, the plate material carried in by the clamp device 15 is grasped, positioned at a desired position, and punched. The processed plate material is carried out by the plate material carrying-out device 19 and carried to the next step. In addition, when the processing by the latter punch press 17 is unnecessary, it can pass through the latter punch press 17 and be carried into the plate material carrying-out device 19.

Next, the second-stage punch press 17 which is one embodiment for carrying out the present invention will be described in more detail.

Referring to FIG. 15, the latter punch press 1
In FIG. 7, the columns 23 and 25 are integrally erected on the lower frame 21, and the upper frame 27 is provided on the columns 23 and 25 to form a frame body.

A disc-shaped upper turret 29 is rotatably provided on the upper frame 27 via a rotary shaft 31, and a lower turret 33 facing the upper turret 29 is mounted on the lower frame 21 via a rotary shaft 35. It is rotatably installed. The upper and lower turrets 29 and 33 are synchronously rotated by a predetermined angle in the same direction by appropriately operating a rotating device (not shown) such as a servo motor.

The upper and lower turrets 29 and 33 have a large number of mold stations (not shown), and a large number of predetermined mold stations have a large number of upper molds 37 and lower molds of various sizes and shapes. A mold 39 is detachably attached, and the pair of upper and lower molds 37, 39 have the same size and shape. In order to punch the plate material W, a ram 41 that can move up and down is provided near the center of the upper frame 27.
Is provided. Therefore, by appropriately operating the rotating device, the predetermined upper and lower molds 37 and 39 are positioned vertically below the ram 41, and the ram 41 is lowered, whereby the predetermined upper and lower molds 37 and 39 are moved. It is possible to perform a predetermined punching process.

A moving positioning device 43 is provided for moving and positioning the plate material W to be punched. More specifically, the Y-axis moving body 45 of the movement positioning device 43 is provided with a rail 47 attached to the lower frame 21.
Is provided so as to be movable in the front-rear direction, in other words, in the Y-axis direction (left-right direction in FIG. 15), and the carriage base 45a in the Y-axis moving body 45 is provided with a clamp device 49 for gripping the plate material W. The provided X-axis moving body 51 is attached so as to be movable in the left-right direction, in other words, in the X-axis direction (direction orthogonal to the paper surface in FIG. 15).

A fixed table 53a which constitutes a part of a work table 53 for movably supporting the plate material W is provided on the upper surface of the lower frame 21, and Y-axis movements are provided on both left and right sides of the fixed table 53a. Movable tables 53b fixed to the body 45 are arranged. In addition,
Reference numeral 55 is an origin positioning device.

With the above configuration, first, the work table 5
After the plate material W is loaded into the sheet 3, the plate material W is positioned at the origin position of the work table 53, and the plate material W is gripped by the clamp device 49. Then, by moving the Y-axis moving body 45 in the Y-axis direction and moving the X-axis moving body 51 in the X-axis direction, the plate material W gripped by the clamp device 49 is placed between the upper turret 29 and the lower turret 33 in a predetermined manner. Move to position and position. Further, as described above, before or during the moving and positioning of the plate material W, at the same time as the moving and positioning, the rotational position is appropriately manipulated and the predetermined upper and lower molds 37, 3 are
9. Position ram vertically below ram 41. Finally,
The ram 41 is lowered and the predetermined upper die 37 is pressed, so that the plate material W supported by the lower turret 33 can be subjected to predetermined punching.

Next, the clamp device 49, which is the main part of this embodiment, will be described in more detail.

Referring to FIGS. 1 and 2, the clamp device 49 includes a dovetail groove guide portion 5 formed on the X-axis moving body 51.
The clamp device main body 59 is engaged with 7 and is provided so as to be movable in the X-axis direction (direction orthogonal to the paper surface in FIG. 1). Since the clamp device main body 59 is fixed to the dovetail groove guide portion 57 provided on the X-axis moving body 51, a fluid pressure actuated fixing cylinder 63 is provided above the clamp device main body 59 via a link member 61. It is provided.

A lower jaw 65 is integrally provided on the lower portion of the clamp device main body 59, and an upper jaw 67 is swingably provided so as to face the upper portion of the lower jaw 65. More specifically, the upper jaw 67 has the fulcrum shaft 6
9 is swingably supported, and the rear end of the upper jaw 67 (see FIG.
On the right side of the drawing), a cutout portion 71 is formed.

On the other hand, a fluid pressure actuated cylinder 73 is built in the inside of the clamp device main body 59, and a pin 77 is provided below the piston rod 75 of this cylinder 73. This pin 77 is described above. The notch 71 formed in the upper jaw 67 is engaged.

A spacer 79 is vertically provided on the front side (left side in FIG. 1) of the upper jaw 67, and the plate material W is sandwiched between the lower surface of the spacer 79 and the upper surface of the lower jaw 65. A contact plate 81 is provided for positioning the tip of the plate material W.

With the above construction, referring to FIG. 3 for the operation, the cylinder 73 operated by fluid pressure is operated,
When the piston rod 75 is lowered, the pin 77 pushes the cutout portion 71 to center the fulcrum shaft 69 on the upper jaw 67.
Rock. Then, the upper jaw 67 is swung in the clockwise direction to widen the space between the upper surface of the lower jaw 65 and the spacer 79 hanging from the tip of the upper jaw 67.

In this state, the flange portion W _F is bent.
The plate material W bent upward enters into contact with the contact plate 81, and the plate material W is positioned. When the fluid pressure cylinder 73 is activated again and the piston rod 75 is pulled up, the upper jaw 67 swings counterclockwise, and the spacer 79 presses the plate W to hold the plate W fixed. At this time, a gap S is formed between the lower jaw 65 and the upper jaw 67. Therefore, the plate material W having the flange portion W _F processed by bending can be easily clamped without being obstructed by the gap S formed in the lower jaw 65 and the upper jaw 67.

Next, the outline of the side table for loading and unloading the plate material provided in the rear punch press 17 which is the main part of this embodiment will be described.

Referring to FIG. 4, the latter punch press 17
A plate material carry-in side table 83 and a plate material carry-out side table 85 are provided on the lower frame 21 which is a member constituting the above.

In the plate material feeding device 87 provided on the plate material carrying-in side table 83, a plurality of (two in this embodiment) magnet rollers 91 are rotatably mounted on the table body 89, and the magnet rollers 91 are attached. Is rotated by a motor 95 as a rotation transmitting member 93 via a chain, for example. Further, the arm stand 9 is attached to the carriage base 45a (not shown) provided in the clamp device 49.
7 is provided upright, and an origin setting pad 103 is provided which is moved by a fluid pressure operated cylinder 99 that moves vertically at the tip of the arm stand 97 and a fluid pressure operated cylinder 101 that moves horizontally.

With the above construction, the plate material W that has been carried in is sucked and held by the origin setting pad 103, and drawn to the clamp device 49 and the locate pin. Further, the carried plate material W is attracted by the magnet roller 91, and can be carried out to the board material carrying-out side table 85 side through the latter punch press 17 by the rotation of the magnet roller 91.

In the plate material feeding device 105 provided on the plate material unloading side table 85, a plurality of unloading rollers 109 are rotatably provided on the table body 107, and serve as a rotation transmitting member 111 in contact with the lower surfaces of the plurality of unloading rollers 109. For example, a belt is provided, and a motor 113 that runs the rotation transmission member 111 is provided in the table body 85. Although not shown, the table body 10
A plurality of work supporting rollers are provided at 7 so as to be retractable.

With the above construction, when the processed plate material W rides on the carry-out roller 109 due to the work supporting roller being submerged, the rotation transmitting member 111 in frictional contact is driven by the drive of 113, and the carry-out roller 109 is moved. The plate material W is carried out to the next step by the rotation.

The stationary table 53a provided on the latter punch press 17 is provided with a clamping means 115 for clamping and fixing the plate material W. That is, the compression means 1
15 is provided with an upper plate material pressing member 119 which is vertically moved by a fluid pressure actuated cylinder 117 on the plate material carrying-out side of an upper frame 27 which is a frame constituting the latter punch press 17. Further, a lower plate retainer 123 that moves up and down by a fluid pressure operated cylinder 121 is provided on the fixed table 53a opposite to the upper plate retainer 119.

With the above construction, when the processed plate material W is released from the clamp, the upper plate material retainer 119 and the lower plate material retainer 123 cooperate with each other by the operation of the respective cylinders 117 and 121 to hold the plate material W in a sandwiched state. For this reason, the plate material W is formed by the free bearings provided on the fixed table 53a.
Is prevented from being rotated and the bottom surface of the plate material W is prevented from being scratched.

The plate material feeding device 87 provided on the plate material loading side table 83 will be described in more detail.

Referring to FIGS. 5, 6 and 7, FIG.
6, the fixed table 53a is provided on the front side of the upper and lower turrets 27 and 33, and the plate material loading side table 8 is provided adjacent to the fixed table 53a.
3 is provided. This plate material carry-in side table 8
A plurality of, for example, free roller bearings are provided as the support rollers 125 on the upper surface of the table body 89 that is a member that forms part 3. Magnet rollers 91 are provided on the front and rear sides of the table body 89. A plurality of (three in the present embodiment) connecting members 127 are connected to form a single magnet roller 91.
29 is engaged.

The magnet roller 91 is movable up and down, and when the plate material W is conveyed, the upper surface of the magnet roller 91 projects above the path line XX, and is always below the path line PP. The upper surface is depressed. Referring to FIG. 6, one end of the table body 89 is supported by the lower frame 21 via an LM guide 89a, and a bracket 89b is vertically provided at the center of the lower surface of the table body 89. A roller 89c is rotatably mounted on the upper and lower sides of each roller 8c.
A support rail 89d is provided between 9c, and the table body 89 is supported by the support rail 89d.

A bracket 131 is vertically provided on the lower surface of the table body 89, and the shaft 13 is attached to the bracket 131.
A fluid pressure actuated cylinder 135 is rotatably provided via the valve 3. Then, a bracket 141 which swings via a pin 139 is swingably engaged with the tip of a piston rod 137 provided in the cylinder 135, and one end of this swing bracket 141 has the above-mentioned table body 89 via a pin 143. Is engaged with the bracket 145 provided in
The magnet roller 91 is rotatably provided on the swing bracket 141.

With the above structure, the fluid pressure operated cylinder 1
When the piston rod 137 is projected by operating 35, the swing bracket 141 rotates about the pin 143 as a fulcrum, and the upper surface of the magnet roller 91 provided on the swing bracket 141 projects above the pass line PP and the plate material W.
Support and transport. It is possible to sink the upper surface of the magnet roller 91 from above the path line PP by reducing the piston rod 137 by the reverse operation of the cylinder 135.

The drive system for rotating the magnet roller 91 is, as shown in FIG. 7, the table body 89.
The motor 95 is mounted on a bracket 147 provided on the lower surface of the motor 95, and a plurality of drive pulleys 151 are fixed to an output shaft 149 of the motor 95. A chain belt, for example, is wound around the drive pulley 151 and the driven pulley 129 mounted on the magnet roller 91 as the rotation transmission member 93. Note that reference numerals 153a and 153 denote guide pulleys, and two of them are the guide pulleys 153.
a is a bracket 15 suspended from the table body 89.
5 and the other guide pulleys 153b are rotatably mounted on brackets 141a provided on the swing bracket 141, respectively.

With the above structure, when the magnet roller 91 is projected on the path line X--X and the motor 95 is driven to rotate the magnet roller 91 via the rotation transmission member 93, the magnet roller 91 is attracted onto the magnet roller 91. The held plate material W can be conveyed to the subsequent punch press side.

Next, as to the structure of the origin positioning device 55, as shown in detail in FIGS. 5, 8 and 9, the carriage base 4 forming the Y-axis moving body 45.
An arm stand 97 is fixed to 5a. The tip of this arm stand 97 (left side in FIGS. 5, 8 and 9)
A support member 157 is removably attached to the support member by means of a mounting bolt, and the support member 157 is provided at two positions.

A fluid pressure cylinder 101 is provided above the supporting member 157 via a stay shaft 159, and a lower end of a piston rod 161 provided on the cylinder 101 is integrated with a supporting plate 165 via a connecting member 163. A supporting rod 167 provided in a specific manner is connected. The support plate 165
A fluid pressure-operated cylinder 99 is provided on the lower surface of, and the origin set pad 103 is movably provided by the cylinder 99. The support plate 165 is obliquely attached to the support plate 165, and the cylinder 99 can be displaced with respect to the support plate 165 within a range of 30 degrees. Reference numeral 169 is a spring, and reference numeral 17
Reference numeral 17 is a support rod for supporting the spring.
3 is an X-axis positioning member.

With the above structure, the cylinder 99 is appropriately operated to position the origin setting pad 103 in a predetermined direction intersecting the X axis and the Y axis, and the cylinder 101 is appropriately operated to lower the origin setting pad 103. The plate material W is suction-held. Then, the cylinder 99 is appropriately operated to move the origin setting pad 103 in a predetermined direction intersecting the X axis and the Y axis. Thus, the plate material W first comes into contact with the contact plate 81 provided on the clamp device 49 which is a member for positioning in the Y-axis direction, and then the support plate 165 having the cylinder 99.
While the plate member W rotates against the urging force of the spring 169, the plate member W contacts the X-axis positioning member 173, and the origin positioning of the plate member W is completed. After the positioning of the plate material W at the origin is completed, the holding state of the plate material W is released to return the support plate 165 to the original position via the urging force of the spring 169. Further, the origin setting pad 103, the support plate 165 are operated by appropriately operating the cylinder 99 and the cylinder 101.
Is not rotatable.

According to the above-described embodiments, the origin positioning device 55 itself does not have the function of loading the plate material W into the table body 89, and therefore the origin positioning device 55.
Is relatively simple in configuration. Further, an arm stand 9 detachably provided on the Y-axis moving body 45 via a mounting bolt.
Since the origin set pad 103 is provided in the table 7, the table main body 89 need not be modified to provide the origin positioning device 55.

Next, the configuration of the plate material feeding device 105 provided on the plate material unloading side table 85 will be described in more detail.

Referring to FIG. 10, the plate material feeding device 105
Is provided adjacent to the fixed table 53a, and a linear guide 175 extending in the Y-axis direction is attached to the right end of the lower frame 21 (not shown). The linear guide 175 extends in the Y-axis direction. Member 177
Are fitted. A table body 197 integrated with the frames 107A and 107B is attached to both front and rear ends of the guide member 177. A plurality of support frames 179 extending in the Y axis direction are supported between the frames 107A and 107B at appropriate intervals in the X axis direction. A plate material W is provided between the plurality of support frames 179.
Discharge roller 109 including a pipe roller for conveying
Is arranged, and the rotation shaft of the carry-out roller 109 is rotatably supported by the frames 107A and 107B.

A plurality of idler rollers 181 are rotatably supported on the right end of the frame 107A at appropriate intervals below the plurality of carry-out rollers 109.

A fluid cylinder 183 is provided in the right portion of the carriage base 45a, and a motor 113 is mounted on the fluid cylinder 183 via a motor bracket 185. The motor bracket 185 is guided by a guide rail 187 to move up and down. A pulley 189 is mounted on the output shaft of the motor 113, and a rotation transmission member 111, which is an endless belt, is wound around the pulley 189 and the plurality of idler rollers 181. Each idler roller 181 is provided with a crown to prevent the rotation transmitting member 111 from meandering, and the rotation transmitting member 1 is always provided.
The force is concentrated on the center of the belt, which is 11, for stable running.

With the above construction, when the plate material W is conveyed, the fluid cylinder 183 is operated to operate the motor bracket 1.
The motor 113 is guided by the guide rail 187 via 85 and is moved downward. When the motor 113 is moved downward, tension is applied to the belt that is the rotation transmission member 111. When the motor 113 is driven in this state, the unloading rollers 109 rotate clockwise due to the frictional force of the belt, which is the rotation transmitting member 111, and the plate material W slides on the unloading rollers 109 and is unloaded to the outside. become.

While the plate W is being punched or cut by punching or cutting, the fluid cylinder 1
By the operation of 83, the motor 113 is guided by the guide rail 187 through the motor bracket 185 and is raised.
The rotation transmitting member 111 is loosened to eliminate tension, and each carry-out roller 109 is completely free.

The reason why the rotation transmitting member 111 is in the free state in this way is that the frames 107A and 107B are fixed relative to the plate material loading side table 83.
The impact force generated by the interference with the carry-out roller 109 due to the sag of the plate material or the like is alleviated as much as possible. Further, when the frames 107A and 107B move in the Y-axis direction, the frames 107A and 107B themselves also swing vertically and horizontally. Due to the swinging, the work supporting roller described later is carried out by the carry-out roller 1.
Even if it interferes with 09, it will not be bitten, and the carry-out roller 109 will not be scratched.

A support roller base 193 provided with a plurality of work support rollers 191 is arranged between the respective carry-out rollers 109 so as to extend in the Y-axis direction, and can be retracted from the surface of the carry-out rollers 109. . The support roller base 193 is fixed to a plurality of, for example, two guide bases 195 extending in the X-axis direction at appropriate intervals in the Y-axis direction. A total of four fluid cylinders 197 and two linear bushes 199 (only one is shown in FIG. 10) are attached to each of the two guide bases 195, two at the front and the rear in the X-axis direction. Each fluid cylinder 197
The lower part of is attached to, for example, a base standing on the floor.

With the above structure, during the processing of the plate material W, the fluid cylinder 197 is operated to raise the support roller base 193 via the guide base 195, and the plurality of work support rollers 191 provided on the support roller base 193 are operated. The surface of the plate W is supported so that the surface thereof protrudes from the surface of each of the carry-out rollers 109. When the plate material W is conveyed, the fluid cylinder 197 is operated to lower the support roller base 193 via the guide base 195, and the support roller base 19 is moved.
A plurality of work supporting rollers 191 provided in 3 are sunk from the surface of the carry-out roller 109 to be in a non-contact state with the plate material W, and the plate material W is conveyed in contact with the respective conveying rollers 109.

The linear bushing 199 serves to prevent the work supporting roller 191 from swinging due to the rapid adjustment during the operation of the rear-stage retetch punch press 17 and to always ascend and descend at a fixed position.

When the punching process or the cutting process is performed, the work supporting roller 191 projects from the carry-out roller 109 to support the plate material W, so that the plate material W can be prevented from being displaced or vibrated. Further, when the plate material W is conveyed after the plate material W is punched or cut, the work supporting roller 191 is retracted from the carry-out roller 109 so that the plate material W is placed on the carry-out roller 109 and the rotation transmitting member. The rotation of 111 causes the carry-out roller 109 to rotate so that the plate material W is carried out to the outside. As a result, the plate material W can be easily carried out without damaging the plate material W and without being restricted by the size of the plate material W.

Next, the pressing means 115 will be described in more detail.

Referring to FIGS. 11, 12 and 13, the clamping means 115 is provided on the fixed table 53a, and the fixed table 53a has a well-known structure, so a detailed description thereof will be omitted. A plurality of work supporting rollers 20 is provided on the upper surface of the table body 201 of the fixed table 53a.
3 is buried. Then, the fixed table 53a
Clamping means 115 is provided on the plate material unloading side as a rear part (lower left side in FIG. 11).

As shown in FIGS. 12 and 13, the configuration of the pressing means 115 is as follows.
The bracket 205 is provided on the side surface of the upper frame 27, which is a member constituting the
A hydraulically actuated cylinder 117 is provided at 05.

An upper plate member retainer 119 having a plurality of plate retainer blocks 209 is attached to the tip of the piston rod 207 provided in the cylinder 117.

On the other hand, the lower plate member presser 123 is provided with a fluid pressure actuating cylinder 121 on the bottom plate of the table body 201 which constitutes the fixed table 53a facing the upper plate member presser 119. And this cylinder 121
At the tip of the piston rod 211 provided in the lower plate member retainer 123, which is provided with a contact plate 213 that abuts the lower surface of the plate member W.
Is installed.

With the above construction, when the plate material W is released from the clamp device 49 after finishing the machining, the cylinders 117, 121
And the piston rod 207 provided in the cylinder 117 is lowered, and the piston rod 211 provided in the cylinder 121 is raised. Each cylinder 11
By the operation of 7, 121, the plate material W is held between the plate pressing block 209 provided on the upper plate material pressing member 119 and the backing plate 213 provided on the lower plate material pressing member 123 with a pressing force.

Therefore, the machining is completed and the clamp device 49
When released further, the work supporting roller 203 provided on the fixed table 53a can prevent the lower surface of the plate material W from being damaged due to rotational deviation.

With the above-described structure, as to its operation, as shown in FIG. 14, first, the plate material W is loaded onto the table body 89 which is a member forming the plate material loading side table 83. The magnet roller 91 provided at 87 is rotated to carry in the plate material W (step S1).

When the plate material W reaches a predetermined position, the rotation of the magnet roller 91 is stopped and the plate material W is stopped (step S2).

Next, the origin set pad 103 is lowered to adsorb the plate material W (step S3). Then, the magnet roller 91 is lowered (step S4). In this state, the origin set pad 103 is moved to draw the attracted plate material to the X and Y axis positioning members 81 and 173 for reference positioning (step S5).

Then, the upper jaw 67 provided on the clamp device 49 is operated to cooperate with the lower jaw 65 to clamp the plate material W, and the X-axis positioning member 173 is lowered (step S6).

In this state, the suction of the origin set pad 103 is released, and the origin set pad 103 is raised (step S7).

Then, the processing of the plate material W is started and the predetermined processing is completed (steps S8 and S9).

When the processing is completed, the plate material clamp device 15
The processed plate material W is positioned to the unloading position (step S10).

In this state, the plate material W is clamped by the cooperation of the upper plate retainer 119 and the lower plate retainer 123 (step S
11). Then, the clamp device 49 is opened to bring the plate material W into a free state (step S12).

Subsequently, the work support roller 191 provided on the plate material unloading side table 85 is moved down from the path line XX (step S13). Then, the clamps of the upper plate pressing member 119 and the lower plate pressing member 123 are released by the operation of the cylinders 117 and 121 (step S14).

From this state, the motor 113 is driven to rotate the carry-out roller 109 to carry out the plate material W to the next step (step S15). This completes one cycle.

With the above-described structure and operation, the spacer 79 is provided at the tip of the upper jaw 67 which constitutes the plate material clamping device 15 provided in the latter punch press 17, and the gap S is provided between the upper jaw 67 and the lower jaw 65. Is provided. The flange portion W _F of the plate material W processed by the ironing and bending machine 13 enters the gap S, and the plate material W can be clamped by the cooperation of the upper jaw 67 and the lower jaw 65.

Therefore, since the large hole can be formed in the plate material W after bending, it is not necessary to form the micro joint or the wire joint. Further, it is not necessary to set up a machining program for the ironing and bending machine in consideration of the large hole position.

Further, carrying in the latter punch press 17 is carried out,
A plate material feeding device 87 is attached to the unloading side tables 83 and 85.
By providing 105, the post punch press 17 can be passed through when the post punch press 17 does not need to be bent.

Furthermore, by providing the clamping means 115 for clamping the plate W on the fixed table 53a of the latter punch press 17, the plate W is clamped after the processing is completed.
When released from 9, the plate material W is not rotationally displaced by the work supporting roller 123 provided on the fixed table 53a, and the lower surface of the plate material W is not scratched.

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

[0086]

As will be understood from the above description of the embodiments, according to the present invention according to claim 1, among the plate material processing lines constituted by the former punch press, the bending press and the latter punch press, By providing a spacer on the upper jaw that constitutes the clamp device provided in the latter punch press,
A clearance is provided between the upper jaw and the lower jaw to allow the flange of the plate to rise. Thus, it is possible to perform the large hole processing on the plate material after bending, and it is not necessary to set up a bending press processing program in consideration of the large hole position.

According to the second, third, and fourth aspects of the present invention, the plate material feeding device including the rotatable magnet roller on the plate material loading side table of the latter punch press, and the plate material unloading side table rotatably unloading. A plate material feeding device composed of rollers was provided. Thus, when it is not necessary to perform punching in the subsequent stage after bending, the plate material can be passed through the latter punch press.

Further, according to the present invention as set forth in claims 5 and 6, the stationary table provided in the latter punch press is provided with the clamping means for retaining the plate material in the clamping pressure. Thus, when the plate material is released from the clamp device after finishing the machining, the plate material is held by the clamping means so that the work supporting roller provided on the fixed table does not cause the plate material to rotate and the surface of the plate material to be flawed. Attaching is prevented.

[Brief description of drawings]

FIG. 1 is a side view showing a main part of the present invention and including a partial cross section of a clamp device.

FIG. 2 is a front view as viewed from the left side in FIG.

FIG. 3 is an operation explanatory view.

FIG. 4 is an explanatory diagram showing an overall configuration of a rear punch press and a plate material feeding device provided in a front stage thereof.

FIG. 5 is a plan view showing a carry-in side table.

6 is an enlarged cross-sectional view taken along line VI-VI in FIG.

FIG. 7 is an enlarged sectional view taken along line VII-VII in FIG.

FIG. 8 is a plan view showing an origin positioning device.

9 is a side view of FIG. 8. FIG.

FIG. 10 is a perspective explanatory view showing a carry-out side table.

FIG. 11 is a plan view showing a fixed table and a pressing means.

12 is an enlarged side view of FIG.

13 is a cross-sectional view taken along line XIII-XIII in FIG.

FIG. 14 is a flowchart of the present invention.

FIG. 15 is a front explanatory view of a punch press of one embodiment for carrying out the present invention.

FIG. 16 is a front layout explanatory diagram showing the configuration of a plate material processing line according to an embodiment of the present invention.

[Explanation of symbols]

1 Plate Material Processing Line 11 Pre-Punch Press 13 Ironing Bending Machine (Bending Press) 17 Post-Punch Press 27 Upper Frame (Frame) 49 Clamping Device 53a Fixed Table 65 Lower Jaw 67 Upper Jaw 79 Spacer 83 Side Plate Side Side Table 85 Plate Side Side table 87 Plate material feeding device 91 Magnet roller 105 Plate material feeding device 109 Delivery roller 115 Clamping means 117, 121 Cylinder 119 Upper plate material retainer 123 Lower plate material retainer W Plate material S Gap W _F Flange part

Claims (6)

[Claims] 1. A plate material processing line comprising a front-stage punch press, a bending press and a rear-stage punch press, wherein the rear-stage punch press is provided with a clamp device for gripping and conveying the plate material, and an upper jaw constituting the clamp device. A plate material processing apparatus, characterized in that a spacer is provided in the plate material gripping part of the plate material and a gap is provided between the upper jaw and the lower jaw so as to escape the rising flange part of the plate material. 2. A plate material processing line comprising a front punch press, a bending press and a rear punch press, wherein a plate feeding device is provided on a side table for loading and unloading the plate of the latter punch press. Plate material processing equipment. 3. The plate material feeding device provided on the side table on the plate material carrying-in side is composed of a plurality of rotatable magnet rollers that can be retracted and retracted from the upper surface of the side table. Item 2. The plate material processing apparatus according to item 2. 4. The plate material processing apparatus according to claim 2, wherein the plate material feeding device provided on the side table on the plate material carry-out side is configured by providing a plurality of rotatable carry-out rollers on the side table. 5. A plate material processing line comprising a front punch press, a bending press and a rear punch press, and the plate material is vertically arranged on a fixed table provided adjacent to a side table on the plate material unloading side of the rear punch press. A plate material processing apparatus comprising a pressing means for pressing. 6. The pressing means is provided with a fluid pressure operated cylinder for vertically moving an upper plate material retainer on a frame of the latter punch press, and a lower plate material retainer on the fixed table facing the upper plate material retainer. The plate material processing apparatus according to claim 5, wherein the plate material processing device is provided with a fluid pressure operated cylinder for vertically moving the lower plate material retainer.