JP2578432Y2 - Plate reversing positioning device in plate cutting machine - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Purpose of the Invention] (Industrial application field) The present invention relates to a plate material reversing positioning device in a plate material cutting machine for performing position reversal of a plate material.

(Prior Art) In a conventional sheet material reversing positioning apparatus, usually, one end of the sheet material is clamped by a work clamp, and cutting is performed from the other end side of the sheet material by a cutting section of a shearing machine as a sheet material cutting machine. . In this case,
The other end of the plate is trimmed in advance, and a cut piece separated from the plate becomes a product. On the other hand, if a plurality of products are taken out from the plate material and the length from the tip of the work clamp to the other end of the plate material is shortened, a cut piece as a product cannot be taken out. In this case, the plate member is turned in the horizontal direction by horizontally rotating the turntable about a vertical inversion axis. Then, the other end of the plate is clamped by the work clamp, and cutting is performed from one end of the plate. In this case, since the one end side of the plate is not subjected to trimming, the one end of the plate may not be suitable as a product surface, and the plate clamped by the work clamp becomes a product.

(Problems to be Solved by the Invention) However, in the conventional plate material reversing positioning device, since the plate material is reversed in the horizontal direction, when the plate material extends along the longitudinal direction (left-right direction) of the shear, There has been a problem that the plate material reversing space is enlarged and the plate material reversing positioning device itself is enlarged.

[Structure of the invention] (Means for solving the problem) In order to solve the conventional problem as described above, in the present invention, a work table for supporting the plate material is provided in front of the cutting portion in the plate material cutting machine, A carriage provided with a plurality of positioning work clamps for clamping an end of the plate material is provided on the work table so as to be movable in the front-rear direction, and a plurality of reversing work clamps for clamping one end of the plate material on the work table are provided in the left-right direction. The work clamps for reversing are arranged so that they can be moved up and down with respect to the support surface of the work table through the notch, and the work clamps for reversing are centered on a horizontal reversing axis. Each is configured to be vertically reversible as
A reversing drive motor for reversing the plurality of reversing work clamps synchronously in the vertical direction is provided, and a work pusher for pushing the plate material forward is provided.

(Operation) After the plate member is supported on the work table by the above configuration, one end of the plate member is clamped by a plurality of positioning work clamps. Then, the carriage is moved rearward to position the plate material at the cutting portion, and the cutting portion performs cutting from the other end of the plate material. Thereby, a cut piece as a product can be taken out from the other end side of the plate material. Note that the positioning and cutting may be repeated a plurality of times to take out a plurality of products from the plate, or the trimming may be performed on the other end of the plate before taking out the product from the plate. .

When cutting is performed from one end of the plate material during the above-described series of cutting processes, the cutting is performed as follows.

That is, the reversing work clamp is projected upward with respect to the support surface of the work table. Next, the carriage is moved forward in a state where one end of the plate is clamped by the plurality of positioning work clamps. And
One end of the plate is clamped by a plurality of reversing work clamps, and the plurality of positioning work clamps are unclamped (clamp released) and moved forward with the carriage.

After clamping one end of the plate with a plurality of reversing work clamps, the reversing work clamp is driven by a reversing drive motor to invert the plurality of reversing work clamps in a vertical direction about a horizontal reversing axis, thereby reversing the plate. The plate material is turned upside down around a horizontal turning axis, and the other end of the plate is opposed to the positioning work clamp back and forth. Next, unclamping a plurality of reversing work clamps,
The plate is pushed forward (toward the work clamp for positioning) by the work pusher. Then, the other end of the plate is clamped by the plurality of positioning work clamps. In addition,
After unclamping multiple reversing work clamps,
A plurality of reversing work clamps are immersed in the support height position of the work table.

After the other end of the plate is clamped by a plurality of positioning work clamps, the carriage is moved backward to position the plate at the cutting portion, and the cutting portion cuts from one end of the plate. Do. In this case, the cut piece separated from the plate material is not always a product, and the plate material clamped by the positioning work clamp may be a product.

(Example) Hereinafter, an example of the present invention will be described in detail with reference to the drawings.

For easy understanding, a description will be given of a shearing machine for shearing a plate material.

Referring to FIGS. 2 and 3, a plate material reversing positioning device 1 according to the present invention includes a work table 3, a plate material positioning device 5,
The plate material reversing device 7 is mainly configured.

The work table 3 is a table on which the plate positioning device 5 is placed to transfer the plate W and to guide the plate reversing device 7.

As shown in FIG. 3, the work table 3 includes an upper frame 9, a lower frame 11, a plurality of pillars 13 connecting the frames, and both frames.
A cubic shape is formed by combining the reinforcing members 15 for reinforcing the pillars 13 with the reinforcing members 9 and 11.

On the upper surface of the upper frame 9, there is a flat plate in which a free bear (spherical free roller) is embedded in the front part (right side in the drawing) from the center in the XX direction in FIG. 2, and a row plate 19 is attached to the rear part. ing.

Two rails 21, 21 are laid on a reinforcing member 15 provided substantially at the center of the work table 3 in the XX direction, and a plate positioning device 5 which will be described in detail later is laid on the rails 21, 21. Is placed.

At the front end of the flat plate 17, a plurality of long slits (an example of cutouts) 23 are formed and have a comb-like shape, and the plate reversing device 7, which will be described in detail later, is disposed directly below the slits 23. ing.

The plate positioning device 5 is a device for transferring the plate W to a shearing machine 25 (see FIG. 4) for shearing.

Referring to FIGS. 2, 3, and 4, the plate positioning device 5 is formed by a carriage 27, a carriage driving device 29, and a shear clamping device 31.

The carriage 27 is assembled in a rectangular shape with a channel steel material or the like, and legs 33 are fixed to both sides in the XX direction, and an LM guide 35 is attached to a lower end thereof.

The LM guide 35 is slidably fitted to the rail 21 and is smoothly moved in the XX direction.

2 and 4, a drive pulley 41 is mounted on a motor shaft 39 of an AC servomotor 37 mounted on the carriage 27.
A belt 47 is mounted between 41 and a driven pulley 45 provided at one end of a gear shaft 43 supported by the carriage 27. A pinion 49 is attached to the other end of the gear shaft 43, and the pinion 49 meshes with a rack 51 extending to the front end of the work table 3 in the XX direction.

The shear clamping device 31 is in the form of a weir plate, and is arranged in the lateral direction (Y-direction) of the flat plate 19 laid on the rear of the upper surface of the work table 3.
It is attached to a flange 53 provided at the front end of the carriage 27 over almost the entire width in the Y direction).

A plurality of positioning work clamps 55 are attached to the front part of the shearing clamp device 31, and the plate material W is inserted and gripped by clamp jaws 57 provided on the front surface thereof.

One of the plurality of positioning work clamps 55 (in the present embodiment, the one marked with N in FIG. 2) can change its mounting position over a predetermined range depending on the width of the plate material W. Has been.

Next, in order to specifically describe the present embodiment, for example, a configuration of a shearing machine as a plate processing machine will be schematically described.

In FIG. 4, the cutting section of the shearing machine 25 includes a fixed lower blade 61 and a movable upper blade 67. The movable upper blade 67 is, with respect to the fixed lower blade 61 attached to the lower machine frame 59,
It is provided on a slide 65 that moves up and down while being guided by the upper machine frame 63.

Since this embodiment is configured as described above, the plate material W gripped by the shear clamping device 31 of the plate material positioning device 5 advances while the carriage 27 slides on the rail 21 by the driving of the carriage driving device 29. Then, the carriage driving device 29 stops. Then, the fixed lower blade 61 attached to the lower machine frame 59 slides 65
, The movable upper blade 67 is lowered, and the plate material W is cut by the two blades 61, 67.

When the plate material W is cut by the two blades 61 and 67, the movable table driving device 29 is driven again by automatic program control of the NC device, the plate material W moves forward, and is cut by the two blades 61 and 67, and this processing operation is repeated. .

Next, an embodiment of the plate material reversing device 7 will be described.

FIG. 1 is an enlarged view of a portion viewed from an arrow P in FIG.

Referring to FIGS. 1 and 5, the plate material reversing device 7 includes a reversing machine clamp 69, a vertical movement device 71 of a reversing work clamp 69, a work clamp device 73, and a reversing work clamp 69.
And a work pusher 77.

The reversing work clamp 69 has a slender-peared opening with a long and narrow interval, and is located immediately below each slit 23 as shown in FIG. 2 and has a comb-shaped slit 23.
Is matched to.

The reversing device 75 of the reversing work clamp 69 is a transmission that is directly connected to a reduction shaft 83 of a reversing drive motor 81 attached to a vertical moving frame 79 having a length close to the entire width (Y-Y direction) of the work table 3. Driven by shaft 85.

The transmission shaft 85 is supported by a bearing 87 attached to the vertical moving frame 79 over the entire width of the vertical moving frame 79.

The stopper 139A is pivotally supported by a bracket 139B provided with a take-up 139, and the bracket 139B is attached to the column 13, and serves as a lower stopper when the vertical moving frame 79 moves up and down (FIG. 1). The stopper 139C serves as an upper stopper (FIG. 5).

Further, in order to adjust the rotation angle of the work clamp for the reversing machine, adjusting devices 89 are provided at two places of the vertical moving frame 79.

As shown in FIG. 6, the adjusting device 89 includes an adjusting piece 91 fixed to both sides of the vertical moving frame 79 and a short cylinder 93 fitted to the transmission shaft 85.
And an adjusting bolt / nut 97 connected to the flange 95 of the motor.

In addition, as shown in FIG.
The reverse position of 69 is detected by the proximity switch 101 by the rotation of the side wall of the vertical moving frame 79 and the short cylinder 99 attached to the transmission shaft 85.

As shown in FIG. 5, a plurality of first-stage main bevel gears 105 are fixed to the transmission shaft 85, and the first-stage main bevel gear 105 is a first-stage slave bevel gear attached to the lower end of the rotating shaft 107. It is meshed with 109.

Each rotating shaft 107 extends upward through the vertical moving frame 79, further passes through the upper small frame 111 fixed to the vertical moving frame 79 via the stand frame 79A, and has a second step at the upper end thereof. A main bevel gear 113 is mounted.

As shown in FIGS. 5 and 8, the rotating shaft 107 is rotatably supported by bearings 115 provided on the vertical moving frame 79 and the upper small frame 111.

The second-stage main bevel gear 113 is a second-stage sub-bevel gear 1 attached to the horizontal reversing shaft 117 of the reversing work clamp 69.
It is meshed with 19.

As shown in FIG. 8, the reversing shaft 117 is supported by a bearing 121 fixed to the upper small frame 111, and the reversing work clamp 69 is fixed to both ends of the reversing shaft 117.

As shown in FIGS. 1 and 5, the vertical movement device 71 of the reversing work clamp 69 includes a lower frame 11 of the work table 3.
An air cylinder 125 is swingably attached to a bracket 123 fixed to the bracket, and a tip of a piston rod 127 is swingably attached to a bracket 129 fixed to the vertical moving frame 79.

Also, a bracket fixed to the vertical moving frame 79 and the column 13
Upper and lower two links hinged between 131 and 1
A parallelogram-shaped toggle mechanism is formed by 33,133.

The work clamp device 73 is attached to the lower part of the reversing work clamp 69, and is configured to automatically or mechanically hold the plate material W.

In the work pusher 77, a rodless cylinder 135 is slidably mounted on a guide plate 137 mounted on the side of the upper small frame 111, and a push plate 139 is fixed on the upper portion of the rodless cylinder 135. The height of the work line WL is set sufficiently high.

When the plate material W is held by the shearing clamp 31 and cut to an appropriately determined reversal dimension by the above configuration, (A) the reversing clamp 69 is first raised by the vertical movement device 71. That is, the air cylinder 125 is activated, and the vertical moving frame 79 is raised via the parallelogram toggle mechanism of the links 133,133.

Then, the work clamp 69 for inversion is raised from the slit 23 formed at the front end of the work table 3 through the stand frame body 79A and the upper small frame body 111, and the opening of the work clamp 69 for inversion is formed in a work line. (Support height position) It is brought to WL.

(B) Next, the shark lamp 31 is retracted, and the plate material W is inserted into the opening in the shape of a ghost. In other words, the movable table driving device 29 is driven backward to retreat to the position behind the reversing work clamp 69 and is made to stand by. At this time, the clamp is released and the plate material W is automatically fitted into the opening of the work clamp 69 for reversing.

(C) The plate material W is held by the work clamp device 73 attached to the work clamp 69 for reversing.

(D) The reversing work clamp 69 is reversed by the reversing device 75. That is, the geared motor 81 is driven to rotate the transmission shaft 85, and further, the reversing shaft 117 is moved 180 degrees through the transmission of the first and second stage bevel gears 105, 109, 113, 119.
°, the reversing machine clamp 69 is reversed in the cantilever shape (vertically).

(E), the rodless cylinder 135 is automatically slid along the guide plate 137 of the work pusher 77, and the plate material W is pushed out by the pressing plate 139 fixed on the upper portion of the rodless cylinder 135, and the shearing clamp 31 is moved. Is inserted into the clamp jaw 57.

(F) Then, the reversing work clamp 69 is reversed and lowered to return to the original position.

(G) The plate material positioning device 5 is advanced, and the plate material W is cut by the shearing machine 25.

(H), when the cutting of the plate W is completed, the plate positioning device 5
Is retracted, and the next plate material W is cut.

In summary, the invention of this embodiment is characterized by the following configuration.

A work table 3 for supporting the plate material W is provided on the front side of the cutting portion in the shearing machine 25, and a carriage 27 having a plurality of positioning work clamps 55 for clamping the ends of the plate material W is mounted on the work table 3 in the front-rear direction. A plurality of reversing work clamps 69 movably provided and clamping one end of the plate material W on the work table 3 are juxtaposed in the left-right direction, and each of the reversing work clamps 69 is connected to the work table 3 through the notch 23. The work clamps 69 for reversing each other are configured so that they can be moved up and down with respect to the support surface, and the work clamps 69 for reversing can be turned up and down around the horizontal reversing shaft 117. A work pusher 77 that pushes the plate material W forward is provided with a reversing drive motor 81 for reversing the plate 69 in a vertical direction.
Is provided.

 The operation of the present embodiment is summarized as follows.

After the plate W is supported on the work table 3, one end of the plate W is clamped by a plurality of positioning work clamps 55. Then, while the carriage 27 is moved in the backward direction to position the plate material W at the cutting portion, the cutting portion sequentially performs the cutting process from the other end of the plate material W. Thereby, a plurality of cut pieces as products can be taken out from the other end side of the plate material W. Before taking out the product from the plate W, the other end of the plate W is trimmed.

If the length of the plate material W in the front-rear direction is reduced by performing the above-described cutting process, the product cannot be taken out from the other end side of the plate material W. Therefore, the cutting process is performed from one end side of the plate material W as follows. .

That is, the operation of the air cylinder 125 causes the reaction work clamp 69 to protrude upward with respect to the support surface of the work table 3. Next, a plurality of positioning work clamps 55
The carriage 27 is moved forward in a state where one end of the plate material W is clamped. Then, one end of the plate material W is clamped by the plurality of reversing work clamps 69, the plurality of positioning work clamps 55 are unclamped, and the plurality of positioning work clamps 55 are unclamped (clamp released) to carry the carriage. Move 27 forward.

After clamping one end of the plate material W with the plurality of reversing work clamps 69, the plurality of reversing work clamps 69 are vertically and synchronously reversed around the horizontal reversing shaft 117 by driving the reversing drive motor 89. Thereby, the plate material W is vertically inverted around the horizontal reversing shaft 117, and the other end of the plate material W is positioned at the work clamp 55 for positioning.
To front and back. Next, the plurality of reversing work clamps 69 are unclamped, and the plate material W is pushed forward (toward the positioning work clamp 55) by the work pusher 77. Then, the other end of the plate material W is clamped by the plurality of positioning work clamps 55. After unclamping the plurality of reversing work clamps 55, the plurality of reversing work clamps 55 are immersed in the work table 3 with respect to the supporting height position.

After the other end of the plate material W is clamped by the plurality of positioning work clamps 55, the carriage 27 is moved backward to position the plate material W at the cutting portion,
The cutting section performs cutting from one end of the plate material W.
In this case, since one end side of the plate material W is not trimmed, the one end surface of the plate material W may be inappropriate as a product surface. Instead of becoming a product, the plate material W clamped by the positioning work clamp 55 becomes a product.

[Effects of the Invention] As described above, according to the present invention, a state in which one end of the plate is clamped by a plurality of positioning work clamps to a state in which the other end of the plate is clamped to perform cutting from one end of the plate. In this case, it is necessary to invert the plate, but by turning the plate up and down (vertically) around the horizontal inversion axis, the horizontal space for the inversion of the plate is minimized. It is possible to save the space of the sheet material reversing positioning device, and furthermore, to save the space of the sheet material cutting machine.

[Brief description of the drawings]

FIG. 1 is a front view showing one embodiment of the plate reversing device according to the present invention, FIG. 2 is a plan view of one embodiment of the plate reversing positioning device according to the present invention, and FIG. 3 is III-III in FIG. Arrow view,
FIG. 4 is a view taken in the direction of arrows IV-IV in FIG. 2, and FIG.
FIG. 6 is a view taken along arrow VI-VI of FIG. 5, FIG. 6 is a view taken along arrow VII-VII of FIG. 5, and FIG. 8 is a view taken along arrow VIII-VIII of FIG. is there. DESCRIPTION OF SYMBOLS 1 ... Plate reversing positioning device 5 ... Plate transferring device 7 ... Plate reversing device 25 ... Shearing machine 69 ... Reversing work clamp 77 ... Work pusher

Claims (1)

(57) [Scope of request for utility model registration] 1. A work table for supporting a plate material is provided in front of a cutting section of a plate material cutting machine, and a carriage provided with a plurality of positioning work clamps for clamping an end of the plate material is mounted on the work table in the front-rear direction. A plurality of reversing work clamps that are movably provided and clamp one end of the plate material on the work table are arranged side by side in the left-right direction,
Each reversing work clamp is configured to be movable up and down with respect to the support surface of the work table via the notch, and each reversing work clamp is reversed up and down around a horizontal reversing axis. A plate cutting machine characterized by being provided with a reversing drive motor for inverting a plurality of reversing work clamps synchronously in the vertical direction and a work pusher for pushing the plate material forward. Plate reversing positioning device.