JPS6038213B2 - positioning device - Google Patents

Description

[Detailed description of the invention] The present invention relates to a positioning device.

More specifically, the present invention relates to a positioning device that easily and quickly positions a plate during multiple processes in a plate processing apparatus such as a press brake or a shearing machine.
In a positioning device capable of performing positioning in multiple steps, setting dimensions for each step is extremely troublesome, and it takes a long time to set dimensions corresponding to multiple steps. Further, a positioning device configured to facilitate dimension setting in each step has a problem in that the number of dimension setting steps is reduced. The present invention was invented in view of the above-mentioned problems, and one embodiment of the present invention will be described in detail below with reference to the drawings. In the following description, the front-rear direction refers to a direction corresponding to the left-right direction in FIG. 1, and the left-right direction refers to a direction corresponding to the left-right direction in FIG. 2. FIG. 1 shows a side effect explanatory diagram of a press brake 1 for bending a plate as an example of a plate processing device equipped with a positioning device according to the present invention, and the press brake key is of a C-shape. Left and right side plates 5 each having a pocket portion 3 formed in the front portion (on the left side in FIG. 1)
, 5 are integrally provided via an intermediate plate 7, a bottom plate 9, etc. to form a frame structure. An upper table 11 is integrally attached to the upper front surfaces of the side plates 5, 5, and an upper die 13, which is a tool extending in the left-right direction, is attached to an appropriate mounting bracket 15 at the lower part of the upper table 11. It is removably attached via the . In addition, a lower mold mount 17 is integrally attached to the upper part of the front lower part of the side plates 5, 5, and a lower table 19 that is moved up and down via a suitable lifting drive device (not shown) is movable up and down. It is installed. Lower mold mounting stand 17
On the top, there is a lower mold 21 which is a tool extending in the left-right direction and works in cooperation with the upper mold 13 to bend a plate material (not shown).
The lower mold 21 has an appropriate number of front fixing plates 25 and rear fixing plates 27 attached to the front and rear sides of the lower mold mounting base 17 with a plurality of bolts 23.
It is fixed in place via a pin. Then, the lower die mounting base 1
7, a positioning device 29 according to the present invention is integrally attached via a rear fixing plate 27 or the like. The positioning device 29 is for positioning the bending position of the plate material to be bent in multiple steps by the tool consisting of the upper mold 13 and the lower mold 21, and as shown in FIG. Left and right supports 31 are mounted at appropriate distances from each other in the left and right direction at the rear, and a movable body 3 is supported by each support 31 so as to be movable forward and backward.
3, a stretch 35 integrally connected to each movable body 33, movable up and down, and extending in the left-right direction, and a plurality of sliding bodies 37 attached to the stretch 35 so as to be slidable and fixed in the left-right direction. and each sliding body 37
first and second abutment members 39, 41 of different lengths for abutting the ends of the plate materials, which are attached to the abutment member 39, and a space cylinder 43 forming a fluid pressure mechanism for simultaneously advancing the plurality of movable bodies 33; The reciprocating bar 45 is connected to the air cylinder 43 and moves back and forth, and the gauge block 49 is equipped with a plurality of gauge bars 47 that regulate and position the forward position of the reciprocating bar 45.

A plurality of mounting plates 51, 51 are each provided with a plurality of mounting plates 51, 51 spaced apart from each other in the left-right direction (left-right direction in FIG. 2), respectively. are integrally attached via a support plate 53.

The one support 31 is attached to the one mounting plate 51 . That is, one support 31
is composed of a front plate 57 attached to the mounting plate 51 with a plurality of bolts 55, and the like. A rear plate 59 is integrally attached to the front plate 57 via left and right side plates 61 and 63 (see FIG. 4), which is appropriately spaced apart in the rear direction (rightward in FIG. 3). 57, a lid 65 is attached to the rear plate 59 via a number of thin fasteners 67.
Note that the lid 65 and the upper end of one side plate 61 are appropriately spaced apart from each other in order to insert the arm portion of the support member that supports the stretch support member, as will be described later.
The support 31 is provided in a substantially box-like shape that is closed downward, and includes a front plate 57, a rear plate 59, left and right side plates 61, 63, and the like. As shown in FIGS. 2 and 5, between the front plate 57 and the rear plate 59, there is a plate extending horizontally in the front-rear direction, that is, in a direction orthogonal to the longitudinal direction of the tool consisting of the upper die 13 and the lower die 21. A guide bar 69 is attached.

Note that a key 71 attached to the rear plate 59 is engaged with the rear end of the guide bar 69. The rectangular parallelepiped-shaped moving body 33 is mounted on the guide bar 69 so as to be slidable in the front and rear directions. As shown in FIGS. 2 and 4, the body of the movable body 33 has a guide bar 6 that corresponds to the moving direction of the movable body 33.
A hole 73 penetrating in the same direction as the direction of extension of 9 is bored, and a nut member 75 is fitted in this hole 73. The nut member 75 has a screw thread 77 such as a ball screw extending in the same direction as the guide bar 69, and both ends of the screw thread 77 are connected to the front plate 57 and the rear plate 59 in the forward and reverse directions. It is rotatably supported.The rear end of the screw punch 77 is connected to the rear plate 59.
The encoder 79 is connected to the encoder 79, which is appropriately attached to the encoder 79. The encoder 79 is used to convert the rotation of the spiral 77, that is, the distance traveled by the moving body 33, and is connected to a digital counter (not shown). therefore,
When the movable body 33 is guided by the guide bar 69 and moves back and forth, the fly village 77 is rotated by the nut member 75 and the encoder 79 is actuated, so that the movable body 33
The position will be displayed numerically on the digital force counter. The movable body 33 is advanced by the air cylinder 43 as described later, and the movable body 33 that has been advanced is
It is caused to retreat by the action of a spring-like bullet 81, which acts as a kind of biasing mechanism.

That is, an ammunition locking member 83 for locking one end of the ammunition aircraft 81 is appropriately attached to one side (the left side in FIG. 2) of the movable body 33. Further, on the rear plate 59, an ammunition 81 is provided.
A hole 85 is drilled through which the ammunition is inserted, and a cylindrical ammunition storage member 87 extending in the rear direction that stores the ammunition 81 is integrally attached to the rear end of the ammunition storage member 87. A pin 89 that locks the end of the ammunition 81 is attached to the holder.
The ammunition 81 is secured at one end to a bullet retaining portion 83 and at the other end to a pin 89 so as to constantly move the movable body 33 in the rearward direction. . On the upper part of the movable body 33, as shown in FIGS. 3, 4, and 6, there is an arm 9 of a support member 93 that supports the flock 91.
5 are integrally attached via bolts.

A vertical mounting portion 97 for a support member 93 disposed on one side (left side in FIG. 4) of the support 31 is integrally formed on the arm portion 95. A long hole 99 is formed in the vertical mounting part 97 in the vertical direction, and a horizontal part 101 extending in the front direction is formed at the lower end of the vertical mounting part 97.
Further, the block 91 is in sliding contact with the front surface of the vertical mounting portion 97 so as to be able to move up and down, and an adjustment bolt 103 is screwed into the body of the block 91 in the vertical direction. The lower end of the horizontal part 1 of the support member 93
01 so that it can freely come into contact with it. The block 91 has a long hole 9
The support member 9 is connected via an appropriate number of bolts 105 screwed into the support member 9
It is fixed at 3. The above is left and right support 3
Although the configuration of 1 and the moving body 33 supported by this support 31 so as to be movable in the front and back direction have been described in detail, the configurations of the other supports 31 are almost the same as the configuration of one support 31, so similar Components that perform functions are given the same reference numerals, and a description of the other supports 31 will be omitted. As shown in FIGS. 2 and 3, on each block 91 attached to the left and right supports 31 as described above, a stretch support member 107 extending in the left-right direction for attaching and supporting the stretch 35 is integrated. It is installed.

That is, as shown in FIGS. 3 and 4, the stretch support member 107 is a hollow prismatic column, and reinforcing plates 109 and 111 are integrally attached to the lower and rear surfaces corresponding to the blocks 91, respectively. It has been done. Then, several stretch support members 107 are placed on each block 91 via each reinforcing plate 109 attached to the lower surface, and the fixed blocks 115 fixed to the lower surface of each reinforcing plate 109 via bolts 113 are connected to the aforementioned plate. . The stretch support member 107 is fixed to each block 91 by integrally connecting the stretch support member 107 with a plurality of pins 117 inserted through the blocks 91. A plurality of mounting seats 119 are welded on the stretch support member 107 at appropriate distances in the left-right direction, and bolts 121 (FIG. 2, 7
(see figure).

Further, a bracket 123 is integrally erected on the rear side of the stretch support member 107 near the center in the longitudinal direction. Screw rod 12 screwed into
5 is slidably inserted, and this threaded rod 125
A plurality of lock nuts 127 are screwed together. Note that the screw rod 125, the bracket 123, and the like are used to prevent the stretch 35 from being bent due to the butt of the plate material. As shown in FIGS. 2 and 3, a plurality of sliding bodies 37 are supported on the stretch 35 so as to be slidable in the left-right direction.

That is, an engagement groove 129 having a rectangular cross section is formed in the lower part of each sliding body 37, and this engagement groove 129 is slidably engaged with the rectangular stretch 35.
A handle portion 13 is provided at the rear of each sliding body 37.
1 (see FIG. 9) at the base thereof, the tip of the fixing screw 133 protrudes and is screwed into the engagement groove 129, and the tip of the fixing screw 133 can be freely applied to the rear side of the stretch 35. It is provided in In addition, the front part of each sliding body 37 (
A rectangular notch 135 is formed in the upper part in FIG.
A plurality of abutment mounting members 139, 14 each having protrusions and 37 formed on their front surfaces to attach abutment members 39, 41.
1 (see FIGS. 8 and 9) is a pivot pin 143 (see FIGS.
(See Figure 2). The bases of the first and second abutment members 39 and 41 are fixed to the protruding portions 137 of the respective abutment mounting members 139 and 141 via an appropriate number of fastening bolts 145 such as bolts (see FIG. 9). It has been done. The first and second abutting members 139 and 141 each extend horizontally in the direction of the tool and in a direction perpendicular to the longitudinal direction of the tool, and each tip end is
As shown in FIGS. 2 and 3, it is formed in an arcuate shape, and is also formed into a suitable shape. Note that the first and second protruding portions 39 and 41 are provided with the first abutting member 39 longer than the second abutting member 41, and the length of the first abutting member 39 is approximately equal to the moving distance of the movable body 33. provided on both abutting members 39, 4.
By giving a difference in length to 1, it is possible to set a wide range of dimensions for the moving distance of the moving body 33. As shown in FIG. 8, a rotating pin 1 is provided on the side surface of one abutment mounting member 139 to which the first abutment member 39 is attached.
A circular recess 147 that is the same as the axis of 43 is bored out,
Locking pins 149 and 151 are mounted in this recess 147 and are appropriately spaced apart in the circumferential direction.

And between each locking pin 149, 151,
One end of a lever pin 153 inserted through the rotation pin 143 in a direction perpendicular to its longitudinal direction projects and is in contact with one of the locking pins 149 . Therefore, when the pivot pin 143 rotates in an appropriate direction, the lever pin 153 is engaged with one of the locking pins 149, so that the lever pin 153 is integrally connected to the abutment mounting member 139 and this abutment attachment member 139. The first abutment member 39 provided in
It is swung vertically about the pivot pin 143. As shown in FIG. 3, a lug 155 that protrudes in a direction perpendicular to the longitudinal direction of the rotary pin 143 is appropriately fixed to the end of the rotary pin 413 that protrudes from the sliding body 37. At the tip thereof, there is provided an abutment air cylinder that swings the first abutment member 39 via a rotation pin 143.
The tip of a piston rod 159 of 157 is pivotally connected via a dowel pin 161. The base of the abutting air cylinder 159 is attached to a cylinder mounting bracket 165 attached to the rear side of the sliding body 37 via a plurality of bolts 163 with an axis pin 1.
It is pivotally connected via 67. In addition, the butting air cylinder
159, the piston rod 159 is contracted and the first abutting member 39 is rotated upward, and the first abutting member 39 is moved to a position retracted from the tip of the second abutting member 41. When changing and abutting the plate material against the second abutting member 41, the number displayed on the digital counter interlocked with the encoder 79 mentioned above will be equal to the dimensional difference between the first abutting member 39 and the second abutting member 41. The amount is added and displayed immediately. One end (left side in FIG. 2) of the plurality of rear side fixing plates 27
7, a rearwardly bent cylinder attachment portion 27a is integrally formed, and the air cylinder 43 is appropriately attached to this cylinder attachment portion 27a.

The air cylinder 43 constitutes a fluid pressure mechanism and is used to simultaneously move the moving bodies 33 forward, and its piston rod 169 is connected to the stretch 35.
The piston rod 16 extends parallel to the longitudinal direction of the piston rod 16.
The threaded portion 171 formed at the tip of the lock nut 1
73 are screwed together, and a connecting member 175 is screwed together so that the attachment position can be freely adjusted. The connecting member 175 includes
One end of a reciprocating bar 45 whose axis coincides with the axis of the piston rod 169 is fixed as appropriate. Reciprocating bar 45
is inserted through the plurality of support plates 53 so as to be reciprocally movable, and chain locking members 177 are arranged and fixed as appropriate near the center and near the ends of the pond. Each chain locking member 177 has
As shown in FIGS. 2 and 10, one end of a number of chains 179 connecting the reciprocating bar 45 and each movable body 33 is appropriately locked, and each chain 1
The other end of 79 is connected to each moving body 33 as shown in FIG.
It is appropriately locked to a chain locking member 181 attached to the upper part of the chain. Each chain 179 is wound around a sprocket 183 rotatably provided on the front surface of each mounting plate 51 (on the left side in FIG. Each of the mounting plates 51 and the front plate 57 is provided so as to be movable within a notch 187 formed by passing through each of the mounting plates 51 and the front plate 57. In addition, the sprocket 183, the chain 179 and the reciprocating bar 4
A mounting plate 51 and a support plate 53 containing 5 etc.
On top, like the support 31 described above, a lid 189 (second
(see figure) is attached via an appropriate number of fastening bolts 191. One end of a hollow cylindrical member 193 is appropriately fixed to the chain locking member 177 attached to the other end of the reciprocating bar 45, as shown in FIGS. 10 and 11.

The vicinity of one end of this cylindrical member 193 is bent rearward (downward in FIG. 11) and integrated with the other end (right side in FIG. 2) of the plurality of rear fixing plates 27 described above. It is slidably supported by a support member 195 attached to the arm portion 27b formed in the shape of a target. The support member 195 has a substantially C-shaped cross section that is closed upward. The bag line of the cylindrical member 193 is aligned with the axis of the reciprocating bar 45 described above, and a long groove 197 closed at one end is formed in the upper part of the cylindrical member. A buffer bar 199 having approximately the same length as the cylindrical member 193 is slidably inserted into the hollow portion of the cylindrical member 193, and a small diameter portion is provided on the chain locking member 177 side of the buffer bar 199. 201 is formed. A bullet 203 is loaded between the small diameter portion 201 and the chain locking portion village 177. Therefore, the buffer bar 199 is always biased to the right in FIG. Further, the outermost groove 197 is inserted into an appropriate position of the buffer bar 199, and the protruding portion 2 protruding onto the cylindrical member 193
05 is formed. An actuating part 209 like a bolt with a dog 207 formed on the protruding part 205 is attached to the buffer bar 1.
It is screwed parallel to the axis of 99. Note that the operating member 20
9 is the end of the buffer bar 199 (right end in Fig. 10)
The amount of protrusion from the protrusion 205 can be adjusted freely, and a lock nut is screwed onto the protrusion. and,
A limit switch 213 operated with the aid of the dog 207 of the cylindrical member 209 is suitably mounted. Note that the limit switch 213 is activated when the dog 207 is separated, and the limit switch 213 is activated when the dog 207 is separated.
3 is activated, the extension speed of the piston rod 169 of the air cylinder 43 described above is reduced. The other end of the buffer bar 199 is made to protrude from the other end of the cylindrical member 193 by the action of the bullet 203, and the buffer bar 199, the cylindrical member 193, and the cylindrical member 19
The forward position of the reciprocating bar 45 etc. integrally connected with 3 is as follows.
The position is determined by a plurality of gauge bars 47 mounted opposite to the rear fixed plate 27 on the pond side.

That is, as shown in FIG. 10, FIG. 11, and FIG.
The mounting portion 215 is made wider than 4 mm and extends in the left and right direction.
* are integrally formed, and an auxiliary plate 217 is integrally welded to the mounting portions 21, 5 and the arm portion 27b. The auxiliary plate 217 has the buffer bar 1
A support block 221 that fixedly supports one end of the guide bar 219 extending rightward in FIG. 10 is integrally attached in parallel with the guide bar 99, etc. Guide bar 2
19, a nut portion 223 is slidably fitted with iron. A protrusion 225 having a width approximately the same as the diameter of the gauge bar 47 is provided on the upper part of the nut member 223, and a protrusion 225 on the buffer bar 199 side of the protrusion 225 is provided with a protrusion against which the other end of the gauge bar 47 abuts. This part 227 is provided protrudingly. Further, the nut member 2 is attached to the body of the nut part village 223.
A female screw hole 229 is bored through the guide bar 219 in parallel with the moving direction of the guide bar 219, that is, in parallel with the longitudinal direction of the guide bar 219. It has been done. The end (left side in FIG. 11) of the threaded village 231 is rotatably supported by the support block 221, and a sprocket 233 is appropriately attached to the shaft end protruding from the support block 221. Incidentally, the sprocket 233 is kinetically connected to a rotational drive device via a chain as described later. A guide plate 235 is appropriately mounted on the support block 221 to slidably guide the gauge block 49 in a direction orthogonal to the longitudinal direction of the buffer bar 199.
As shown in FIGS. 10 and 11, on the upper surface of the guide plate 235, there is a flock guide groove 237 that freely engages the lower part of the gauge block 49 with the buffer bar 199.
This groove 237 is perforated in a direction perpendicular to the longitudinal direction of the flock guide groove 237.
A bar guide groove 239 is bored in the same direction as 37. A block moving bar 241 having a T-shaped cross section is slidably inserted into the bar guide groove 239. The block moving bar 241 is for moving the gauge block 49, and its upward movement is restricted by a plurality of presser plates 243 appropriately attached to the bottom of the block guide groove 237. The block moving bar 241 is removably engaged with the bottom of a groove 245 formed in the bottom of the gauge block 49 via a fixing pin (not shown). Note that the block moving bar 241 extends rearward (downward in FIG. 10), and its end is interlocked and connected to a block retraction cylinder to be described later. As shown in FIG. 11, engagement grooves 247 are formed near the lower portions of both sides of the gauge block 49, and each engagement groove 247 has a presser foot extending on both sides of the guide plate 235 described above. The plates 249 are engaged with each other, and the upward movement of the gauge block 49 is restricted by the respective presser plates 249.

As shown in FIGS. 11 and 12, the body of the gauge block 49 has a plurality of insertion holes 251 into which the plurality of gauge bars 47 are inserted, parallel to the axis of the buffer bar 199 mentioned above, and at approximately equal intervals. A hole is drilled through the hole. In addition,
The gauge bar 47 inserted into each insertion hole 251 has one end abutted against the other end of the buffer bar 199, and the other end abutted against the abutting portion 227 of the nut member 223 described above. . At the upper part of each insertion hole 251, a substantially rectangular sliding hole 253 is bored through.
The upper bottom of each sliding hole 253 is formed to become lower as it moves away from the cylindrical member 193. A sliding door member 255 is inserted into each open hole 253 to fix the gate 47 inserted into the plurality of insertion holes 251.
As shown in the figure, a head 257 that protrudes upward is integrally formed. The gauge bar 47 is fixed to the gauge flock 49 via a fastener 259 such as a bolt that is inserted through the head 257 and screwed into the gauge block 49 . Note that a bullet 261 such as a spring is provided between the gauge block 49 and the head 257 of the punching member 256.
The contact surface of the port member 256 that contacts the gauge bar 47 is formed to have an arcuate cross section. The plurality of insertion holes 25 are provided in the lower part of one side of the gauge block 49 (lower right side in FIG. 10 and FIG. 13).
A plurality of triangular notches 263 corresponding to 1 are formed.

Note that each notch 263 is engaged with an engaging part 269 of a feed pawl 267 that is movably connected to a block advancement cylinder 265 that advances the gauge block 49, as will be described later. A regulating groove 271 is formed on one side of the corresponding guide plate 235 to accommodate the engaging portion 269 of the feed claw 267 and to regulate its movement range. The feeding pawl 267 has a triangular engaging portion 269 formed at its end that sequentially engages with the cutout portion 263 to move the gauge block 49 forward in accordance with the spacing between the gauge bars 47. Feed claw holder 2 rotatably provided on one side
It is installed on 73. That is, the guide plate 235
In the vicinity of the above-mentioned regulation groove 271, there is a bracket 2
75 is integrally attached, and a shaft pin 277 passing through the bracket 275 in the vertical direction is rotatably attached to the bracket 275. As shown in FIG. 14, one end of a feed claw holder 273 is appropriately fixed to the upper end of the ball pin 277.
This feed pawl holder 273 is provided with a feed pawl storage recess 279 that is closed at the end of the pond. The feed claw 267 is slidably housed in the feed claw storage recess 279, and the feed claw 267 is always placed between the feed claw 267 and the bottom of the feed claw storage recess 279. It is loaded with a bullet 281 that urges it to protrude outward. One end of a link member 283 extending in a direction perpendicular to the longitudinal direction of the feed claw holder 273 (downward in FIG. 10) is fixed to the lower end of the shaft pin 277, and this link member At the pond end of 283, the guide plate 2 is installed.
Attach the pin 28 to the bracket 285 attached to the bottom of the
A flock advancement cylinder 26 whose base is pivotally connected via 7
The tip of the piston rod 289 of No. 6 is pivotally connected via a dowel pin 291. Therefore, when the block advancement cylinder 265 is actuated to extend the piston rod 289, the feed claw holder 273 is rotated counterclockwise in FIG. 10 about the shaft pin 277. At this time, the feed pawl 267 is moved into the feed pawl storage recess 2 against the bullet 281.
79, moves integrally with the feed claw holder 273, is regulated by the regulation groove 271, and is rotated to the position shown by the imaginary line in FIG. That is, when the piston rod 289 is retracted, the engaging portion 269 of the feed pawl 267 is moved to the feed pawl holder 2 by the action of the bullet 281.
73, the gauge block 49 is advanced while being engaged with the notch 263 of the gauge block 49, and the gauge bar 47 is stopped by the regulation groove 271 with the gauge bar 47 advanced by one interval. . As described above, the gauge block 49 is sequentially advanced through the feed pawl 267 and the like by the operation of the block advance cylinder 265, but the gauge block 49 that has been advanced to the end of each set step is moved backward. It is retracted to the original position by the cylinder 293.

That is, a support plate 295 is provided at the lower part of the rear end (lower end in FIG. io) of the guide plate 235.
A bracket 297 for attaching the block retraction cylinder 293 is mounted on the support plate 295, and a number of bolts 30 are mounted on the support plate 295 together with a plurality of supports 299.
It is attached via 1. Between the bracket 297 and the support plate 295 is a block retraction cylinder 29.
3 is rotatably mounted via a pin 303 which is provided at one end (on the left side in FIG. 10) of the outer periphery and protrudes from above and below to face each other. In addition, the block retraction cylinder 293
The other end extends to the other side (rightward in FIG. 10) of the lower mold mount 17. A connecting member 307 is screwed onto the tip of the piston rod 305 of the block retraction cylinder 293 so that its position can be adjusted freely.
As shown in FIG. 10, one end of a triangular link plate 311 is rotatably attached to the support plate 295 via a pivot 309 attached near the center of the plate.
It is pivotally connected by a pin 313. Link plate 31
A long hole 315 is formed at the end of the pond 1, and this hole 3
A connecting pin 31 like a bolt is rotatably inserted into 15.
7 is screwed onto the rear end of the block moving bar 241 described above, whereby the block moving bar 241 and the block retraction cylinder 293 are movably connected. Therefore, the piston rod 3 of the block retraction cylinder 293
When 05 is retracted and activated, the plate 311 connected via the pin 313 moves around the pivot 309.
In FIG. 10, the block moving bar 24 rotates clockwise and is connected via a connecting pin 317.
1 moves rearward, and the gauge block 49 appropriately connected to this block moving bar 241 is guided by the block guide groove 237 of the guide plate 235 and retreats. In addition, the gauge bar 47 inserted into the gauge block 49 is attached to the lower part of the support plate 295.
A rotary drive device 391, such as a motor, is mounted to rotate the screw thread 231 to position it in correspondence with the bending position of the plate material.

That is, at the bottom of the support plate 295,
As shown in FIG. 15, a bracket 321 is provided on the side corresponding to the above-mentioned sprod 233, and a rotary drive device 319 that is equipped with a suitable speed reduction device 323 and can be rotated in forward and reverse directions is attached to the bracket 321 as appropriate. A sprocket 327 is mounted on the output shaft 325 of the speed reducer 323, which is attached and interlocked with the drive shaft (not shown) of the rotary drive device 319.
is integrally installed. This sprocket 327 and the sprocket 233 attached to the screw village 231 mentioned above
A chain 329 (see FIG. 10) is suspended between the two. With the above configuration, in order to set the bending position of a plate material using the apparatus according to the present embodiment and perform multiple processing steps using a tool, first, the plurality of gauge bars 47 attached to the gauge block 49 are used to The first abutting member 39 and the second The abutting member 41 is moved to the bending position of the plate material, and the end of one of the abutting members is abutted and bent using a tool.

In order to position and fix the plurality of gauge bars 47 attached to the gauge block 49 in accordance with each setting dimension of the bending process, first, the gauge block 49 is attached to one end of the gauge bar 47 at the forefront (the uppermost layer in FIG. 10). is positioned so that it faces the end of the buffer bar 199, and the other end faces the abutting portion 227 of the nut portion village 223.

Next, the piston rod 169 of the air cylinder 43 is extended to move the reciprocating bar 45 to the right in FIG. At this time, the end of the buffer bar 199 slidably inserted into the hollow part of the cylindrical part village 193 integrally connected to the reciprocating bar 45 is moved to the cylindrical part 19 by the action of the bullet 203.
The dog 207 of the actuating member 209 protrudes rightward in FIG. When the tip of the buffer bar 199 comes into contact with the gauge bar 47 due to the further extension of the piston rod 169, the buffer bar 199 is moved leftward in FIG. 10 against the bullet 203, and the gauge bar 4
The butt against 7 is done slowly. Actuation member 209
When the dog 207 is separated from the limit switch 213, the extension speed of the piston rod 169 of the air cylinder 43 is reduced, and the end of the small diameter portion 201 is moved away from the reciprocating bar 45.
The buffer bar 199 in contact with the bar 199 gently abuts the foremost gauge bar 47 against the protrusion 227 of the nut member 223 .
Next, while driving the rotary drive device 319 in normal rotation,
The screw thread 231 is rotated via the reduction gear 323, the chain 329, the sprocket 233, etc., and the nut member 223 is moved to the left in FIG.

The foremost gauge bar 47, buffer bar 199 and reciprocating bar 45 pushed by the nut member 223 are connected to the air cylinder 4.
3, they are integrally moved backward to the left in FIG. By the backward movement of the reciprocating bar 45,
Each moving body 33 connected via a plurality of chains 179 is guided by each guide bar 69 and moves rearward by the action of each bullet 81. Each moving body 33
As it moves backward, the bending line of the tool consisting of the upper mold 13 and the lower mold 21 and the plurality of first
The distance from the tip of the abutment member 39 or the second abutment member 41 is displayed numerically on a digital counter (not shown). When the number displayed on the digital counter reaches a predetermined set size, the drive of the rotary drive device 319 is stopped. Note that at this time, the air cylinder 43 is maintained in an operating state so as to extend the piston rod 169.
Next, after fixing the foremost gauge bar 47 to the gauge block 49 with the deep member 255, the air cylinder 43 is fixed.
When the operation of the plurality of first and second abutting members 39,
41 and each movable body 33 are moved backward by the action of each bomb 81, and the piston rod 169, reciprocating bar 45, buffer bar 199, etc. are moved to the left in FIG. 2 by the action of each bomb 81. is moved backwards in the direction.

Then, while driving the rotational drive device 319 in the reverse direction,
Reducer 323, sprocket 327, chain 329,
The nut member 223 is moved to the right in FIG. 10 via the sprocket 233, screw punch 231, and the like.
Thereafter, the piston rod 289 of the flock advance cylinder 265 is extended, and the feed pawl holder 273 is moved to the shaft pin 27 via the shaft pin 291, the link member 283, etc.
7 in the counterclockwise direction in FIG. 10. Feed claw 267 stored in feed claw holder 273
is stored in the feed pawl storage recess 279 against the ammunition 281 and in the forwardmost notch 26 of the gauge block 49.
3, and the regulation groove 271 of the guide plate 235
It is regulated and stopped. Next, the piston rod 289 of the block advancement cylinder 265 is contracted, and the feed pawl holder 273 is rotated clockwise about the shaft pin 277. The feed pawl 267 rotates together with the feed pawl holder 273, and its engaging portion 269 projects outward due to the operation of the bullet 281, and engages with the next notch 263 of the gauge block 49 and rotates. , it is regulated by the regulation groove 271 and stopped. Therefore, the gauge block 49 is guided by the block guide groove 237 of the guide plate 235 and is advanced by the distance between each gauge bar 47, so that both ends of the next gauge bar 47 are connected to the protrusion 22 of the nut member 223.
7 and the buffer bar 199. Note that when the block advance cylinder 265 is actuated to move the gauge block 49 forward, the block retreat sheather 293 is not operated and its piston rod 305 is freely extendable. After the next gauge bar 47 is advanced together with the gauge block 49, the next gauge bar 47 is pushed against the abutting portion 227 of the nut section 223 via the air cylinder 43, the reciprocating bar, the buffer bar 199, etc. At the same time, the rotary drive device 319 is driven in normal rotation to position the next gauge bar 47 at a position corresponding to the set dimensions for the next process, and is fixed to the gauge block 49 by the sliding door village 255.

Repeat the above steps one after another to create multiple gauge bars 4.
7 is fixed to the gauge block 49 in correspondence with the set dimensions of the plate over multiple processes. Note that if the distance between the bending line of the tool and the end of the first abutment member 39 is large,
A second abutment member 41 is used. That is, the piston rod 159 of the abutment air cylinder 157 is contracted, and the pivot pin 143 is pivoted clockwise in FIG. 3 via the dowel pin 161 and the lug 155. Rotating pin 14
The lever pin 153 inserted into the abutment mounting member 139
The abutment mounting member 139 is rotated via one of the locking pins 149 provided in the shield, and the first abutment member 39 is rotated clockwise about the rotation pin 143 in FIG. Hold the tip in the upper position. When the tip of the first abutting member 39 is held upward,
The display on the digital counter is as follows. 1 Abutting member 3
9 and the second abutting member 41 are automatically added. After positioning and fixing the plurality of gauge bars 47 attached to the gauge block 49 in accordance with the set dimensions of each process, the flock retraction cylinder 2
The piston rod 305 of 93 is contracted, and the link plate 311 is rotated clockwise in FIG. 10 about the pivot 309, and the gauge block 49 is
is returned to the initial position, that is, the position where both ends of the foremost gauge bar 47 face each of the ends of the buffer bar 199 and the protrusion 227 of the nut section 223. When the block retraction cylinder 293 operates, the piston rod 289 of the block advance cylinder 265 is extended and the engaging portion 269 of the feed pawl 267 is moved to a position where it does not interfere with the notch 263 of the gauge block 49. It is being rotated. Next, the end of the plate is pressed against the tip of either the first or second abutting member 39, 41 for positioning, and is bent using a tool.

First, the plurality of sliding bodies 37 mounted on the stretch 35 are moved in the left-right direction as appropriate, and the fixing screws 1
33, it is fixed to the stretch 35. Then, the piston rod 169 of the air cylinder 43 is extended, and the buffer bar 199 together with the reciprocating bar 45 is brought into contact with the end of the positioned and set gauge bar 47. Each moving body 3 connected via a reciprocating bar 45 and a plurality of chains 179
3 moves forward against each of the projectiles 81, and the distance between the tip of one of the first abutting members 39 and the bending line formed by the tool is already It is held equal to the set dimension by the set gauge bar 47. Then, the plate material is placed on the lower die 21 and slid backward to press its end against the tip of each first abutment member 39. Lifting drive device (
(not shown) is driven to raise the lower die 21 and bend the plate material via the upper die 13. Then, the operation of the air cylinder 43 is stopped, and the first abutment member 39 and the like are once retreated together with each moving body 33 by the action of each bullet 81. The block advance cylinder 265 is operated and the gauge block 49 is advanced by the feed pawl 267.
Thereafter, the above-mentioned procedure is repeated to position the processing position of the plate material using the first abutment member 39 or the second abutment member 41, and to perform each process using the tool consisting of the upper die 13 and the lower die 21. Once the bending process is performed, the multi-step bending process for the plate material is completed. In addition, in the above, the plurality of gauge bars 47 attached to the gauge block 49 are respectively positioned and fixed according to the bending setting dimensions corresponding to the multiple processes of the plate material, and while the gauge block 49 is moved, the first, first, and third gauge bars 47 are moved. The second abutment members 39, 41 are positioned at predetermined positions, the end of the plate material is pressed against either the first or second abutment members 39, 41, and a large amount of plate material is bent using a tool. Although the case has been described in detail, when bending a small amount of plate material, it is possible to bend one gauge bar 47 with a tool while driving the rotary drive device and positioning it for each process. be. As can be understood from the above description of the embodiments, the gist of the present invention is as stated in the claims. According to the specific invention, for example, as shown in the embodiments, fluid pressure Even when a cylinder is used as a mechanism to position the abutment member, the positioning can be performed at high speed and with high precision. In addition, when the gauge bar is moved and positioned using a suitable motor, it is sufficient to move only the lightweight gauge bar to the outside of the motor, and the apparatus can be made compact and manufactured at low cost. Furthermore, the second
According to the invention, a plurality of gauge bars can be set in advance on a gauge block, which is particularly effective when the same work can be repeated.

Note that by providing the gauge block in a removable manner, it is possible to quickly respond to various types of machining by preparing a variety of gauge blocks corresponding to various types of machining processes. In the above explanation, the case where the positioning device is attached to a press brake that bends plate material has been described in detail, but the positioning device is not limited to a press brake, and may be attached to a plate cutting device such as a shearing machine. I can do it.

Other devices that have the same functions and effects without departing from the scope of the claims of the present invention belong to the technical scope of the present invention.

[Brief explanation of the drawing]

The drawings show one embodiment of the present invention, and FIG. 1 is a side sectional view of a press brake equipped with a device according to the present invention, and FIG.
The figure is a planar action explanatory diagram of the positioning device according to the present invention, the third
The figure is an explanatory diagram along the mm line in Figure 2, Figure 4 is an explanatory diagram of the cross section along the W-W line in Figure 2, and Figure 5 is an explanatory diagram of the cross section taken along the line W-W in Figure 2.
- V line cross-sectional explanatory diagram, Figures 6 and 7 are the - line and skin-to-skin line cross-sectional diagrams in Figure 2, respectively, and Figures 8 and 9 are cross sections of important parts in Figure 3, respectively. Explanatory drawings, FIG. 10 is an enlarged plane explanatory view of the main part, FIG. 11 is an explanatory view of the phantom-rainbow line cross section in FIG. 10, FIG. 12 is an explanatory view of the side effect from the thin direction in FIG. 14 and 15 are the Xm-Xm line and the XW line in FIG. 10, respectively.
1 is an explanatory view of the cross-sectional effect on the XN line and the XV-XV line. (Explanation of symbols representing main parts of the drawing) 35...
Stretch, 37...Sliding body, 39...
・First abutting member, 41...Second abutting member, 43...
...Fluid pressure mechanism, 45... Reciprocating bar, 47
... Gauge bar, 49 ... Gauge block, 81 ... Bullet machine, 169 ... Piston rod, 23
5...Guide plate. Figure 3 Figure 6 Figure 7 Figure 1 Figure 4 Figure 5 Figure 8 Figure 9 Figure 2 Figure 10 Figure 11 Figure 12 Figure 13 Figure 14 Figure 15

Claims (1)

[Scope of Claims] 1. A long tool for processing a plate material is provided on one side with an abutting member that can freely come into contact with the end of the plate material and can be moved forward and backward in a direction perpendicular to the longitudinal direction of the tool, A biasing device for biasing the abutment member in a direction away from the tool is provided, and a fluid pressure mechanism 43 is provided for causing the abutment member to approach the tool against the biasing device, and the fluid pressure mechanism 43 A reciprocating bar 45 that reciprocates in conjunction with the forward and backward movement of the abutment member is attached to the piston rod 169 of the gauge bar 47, and the gauge bar 47 can freely regulate the movement of the reciprocating bar 45 by coming into contact with an end of the reciprocating bar 45. A positioning device characterized in that the reciprocating bar 45 is provided so as to be opposed to each other on the axis thereof, and is movably adjusted and fixed on the axis. 2. An abutment member that can freely come into contact with the end of the plate material is arranged on one side of a long tool for processing a plate material so as to be movable forward and backward in a direction perpendicular to the longitudinal direction of the tool, and the abutment member is A fluid pressure mechanism 43 is provided, which includes a biasing device that biases the tool in a direction away from the tool, and also causes the abutment member to approach the tool against the biasing device, and the piston rod 169 of the fluid pressure mechanism 43 includes: A reciprocating bar 45 that reciprocates in conjunction with the forward and backward movement of the abutting member is attached and provided, and a guide plate 235 provided near the end of the reciprocating bar 45 is perpendicular to the direction of movement of the reciprocating bar 45. A gauge block 49 is attached to the gauge block 49 so as to be slidable in the direction, and a plurality of gauge bars 47 are attached to the gauge block 49 and can freely restrict the movement of the reciprocating bar 45 by coming into contact with the ends of the reciprocating bar 45. A positioning device characterized in that the plurality of gauge bars 47 are installed parallel to the moving direction and the amount of protrusion of the plurality of gauge bars 47 is adjustable.