JPH0235369Y2 - - Google Patents

Description

[Detailed Description of the Invention] a. Field of Industrial Use This invention relates to an abutment gauge device for positioning a plate in a bending device that bends the edge of a plate.

b. Prior Art A bending device for bending the edge of a plate material is equipped with a bottom die extending in the left-right direction and a top die that can freely press and fix the plate material and is movable up and down, and the bottom die and the top die abut in the front-rear direction. A bending device has been developed that has a vertically movable bent beam that bends the abutment (edge) of the plate material upward, and the bending section is separated from the front and back and is symmetrical. has been done. As this type of bending device, for example, Japanese Patent Application Laid-Open No. 59-202120
There is a device described in the publication.

c. Problems to be solved by the invention In the bending device configured as described above, in order to position the plate material in the front and back direction,
An abutment gauge is provided between the front and rear bending parts to abut the plate material, but the lateral position of the abutment gauge must be adjusted according to the width of the plate material in the left and right direction. was extremely troublesome.

In order to solve the above problem, it is possible to automate the process by providing a screw rod that extends in the left-right direction and screwing the abutment gauge onto the screw rod so that it can move in the left-right direction, but in this case, has the problem of complicating the configuration.

d Means for solving the problem In order to solve the conventional problems as described above, this invention is equipped with a top die that presses and fixes a plate-shaped workpiece to a bottom die extending in the left-right direction and is movable up and down. , and a bending section which is provided with a vertically movable bent beam for upwardly bending the abutting portion of the workpiece that abuts in the front-rear direction from the bottom die and the top die, is provided in a front-back symmetrical shape and is spaced apart back and forth. This is an abutment gauge device for sheet material bending equipment, and a plurality of gauge cases are arranged in the left and right direction between the front bending part and the rear bending part, and the gauge cases are connected to the pass line of the workpiece. A lift actuator is provided for each gauge case so as to be able to freely move in and out, and a lifting actuation device is provided for each gauge case to move each gauge case individually. It is provided in the gauge case so that it can be moved and adjusted in the front and rear directions.

e Effect With the above configuration, each gauge case can be moved in and out of the pass line as appropriate by operating each lifting actuation device. Therefore, at least two gauge cases located at positions corresponding to the width of the plate material to be bent can be selected and used for positioning the plate material in the front-rear direction.

That is, since only the necessary gauge cases can be selected and used for positioning according to the width of the plate material, there is no need to adjust the position of the gauge case in the left-right direction, and the width of the plate material can be quickly adjusted.

f Embodiment Referring to FIGS. 1 and 2, the plate material bending apparatus includes a front bending section 1 (left side in FIG. 2) and a rear bending section 3. It is what it is. The front and rear bending sections 1 and 3 are constructed in a front-back symmetrical manner, and are each equipped with a bottom die 5 extending in the left-right direction, a top die 9 that presses and fixes the plate material (work W), and a top die 9 that presses and fixes the plate material (work W). It is equipped with a bent beam 21 that bends the direction.

To roughly explain its operation, the workpiece W inserted onto the bottom die 5 from the left side of FIG.
A ram 11 which is positioned in contact with a plurality of gauge devices 7 provided in the left-right direction and has a top die 9 attached to its lower surface is lowered by a fluid pressure cylinder 13 to press and fix the workpiece W onto the bottom die 5.

A slope guide 19 having sloped surfaces is provided at the front and rear of the pillar-like abutment member 17 which is vertically installed from the ram 11 at the symmetric center plane 15 position of the front and rear bending parts 1 and 3.
is provided, and the bottom die 5 and the slope guide 19
A bent beam 21 is provided between the two and can be freely inserted upward.

The bent beam 21 has a piston rod 25 that expands and contracts by a hydraulic cylinder 23 and an eccentric shaft device 27.
is driven up and down, and the abutting portions of the work W that abut from the bottom die 5 and the top die 9 are bent upward.

FIGS. 3 to 7 are diagrams for explaining the elevating and lowering operation position 29 of the gauge device 7 and the movement positioning mechanism 33 of the gauge body 31 in the front and rear direction. A plurality of gauge devices 7 are provided in the left-right direction between the front and rear bending sections 1 and 3, and are guided by a guide bar 37 (see Fig. 4) provided perpendicularly to the machine frame 35 of the bending device. A cylindrical body 39 that can be raised and lowered is provided.

The upper cover 41 and lower cover 43 of the cylinder body 39 vertically support a pinion shaft 45 as shown in FIGS. 3 and 5, and the upper cover 41 supports the machine frame 35 as shown in FIG. The piston rod 51 of the fluid pressure cylinder 49 is held by a cylinder holder 47 provided perpendicularly to the cylinder holder 47.
It is attached to the top of the . This fluid pressure cylinder 49
is a double piston cylinder equipped with pistons 53 and 55, and as shown in Figs. It can be located at a position 57M and a lower position 57L recessed from the pass line.

An electric motor 59 is installed in a lower part of the machine frame 35 via a bracket 61 as shown in FIG.

Rotation is transmitted from the output shaft of the electric motor 59 to an upper horizontal shaft 65 via a belt 63, and in the example shown, is reduced in speed by a combination of a worm gear and a worm wheel among four gearboxes 67. This will be communicated to Joint 69.

A telescopic shaft (telescopic shaft) 71 that rotates as a unit with the rotation of the universal joint 69
The rotation is transmitted to the upper universal joint 73 through the pinion shaft 45, which is supported by the lower cover 43 of the cylinder 39, and is rotated.

Gearbox 67 is the second one from the left in Figure 7.
A dog 79 (see Fig. 6) surrounds a shaft 77 which is further decelerated, for example, by a large and small gear set 75, to further reduce the rotation of the worm wheel shaft.
A cylinder 81 equipped with is rotating.

When this dog 79 comes into contact with the detection device 83, for example a limit switch, the number of revolutions of the pinion shaft 39 can be precisely measured.

As is clear from FIG. 4, a pinion gear 85 is attached to the upper portion of the cylinder body 39 where the pinion shaft 45 passes through the upper cover 41, and is engaged with a rack 87 provided on one side of the gauge body 31.

Thus, in the gauge device of the embodiment, the gauge body can be freely positioned in the front-back direction by remote control. Further, it is easy to lower the entire gauge device from a middle position where it is placed at the same level as the product pass line to a lower position where it does not interfere with the product to be carried out.

The upper position shown in the description of the embodiment is a convenient height position when the abutting end side of the workpiece has been Z-bent in a previous bending process.

In addition, by lowering unnecessary gauge devices to the lower position arbitrarily in response to changes in the total width of the workpiece, only the two gauge devices that are effective are used depending on the size of the total width of the workpiece.

g. Effects of the invention As can be understood from the description of the embodiments above, the gist of the invention is to move the top die 9, which presses and fixes the plate-shaped workpiece W to the bottom die 5 extending in the left-right direction, up and down. A bent beam 21 that is movable up and down and that bends upwardly the abutting portion of the workpiece W that abuts from the bottom die 5 and the top die 9 in the front and back direction is provided in the front and rear directions. A plurality of abutment gauge devices for a sheet material bending device are provided in a spaced apart and symmetrical shape in the front and back, and a plurality of abutment gauge devices are arranged in the left-right direction between the front bending section 1 and the rear bending section 3. A gauge case 57 is provided so as to be freely protrusive and retractable with respect to the pass line of the workpiece W, and an elevating actuator 29 for individually protruding and retracting each gauge case 57 is provided corresponding to each gauge case 57.
A gauge body 31 is provided in each gauge case 57 so as to be movable and adjustable in the front-rear direction.

With the above configuration, according to the present invention, when the horizontal width of the plate (work) W changes, at least two gauge cases at positions suitable for the width of the plate are selected, and the selected gauge cases are supported. The gauge main body 31 can be positioned in the front-rear direction and used for abutment positioning of the plate material W. In other words, since only the necessary gauge case can be selected and used for positioning the plate in the front-back direction, there is no need to position the gauge case in the left-right direction, and even with a simple configuration, it can quickly adapt to the width of the plate. be.

[Brief explanation of the drawing]

Figure 1 is a front view of the device implementing the present invention, Figure 2
The figure is a right side view of Fig. 1, and Fig. 3 is an enlarged partial view of the elevating mechanism and movement positioning mechanism of the gauge device.
This corresponds to the left side view of FIG. Figure 4A is the same side view as Figure 2 and is an enlarged partial view of the moving positioning mechanism of the gauge device, Figure 4B is a top view of the gauge device in Figure 4A, and Figure 5A is the same as Figure 4A. Figure 5B is a cross-sectional view taken along line B-B of Figure 5A, Figure 6 is a left side view of Figure 7, and Figure 7 is taken from the same direction as Figure 1. FIG. 2 is a front view showing only the moving positioning mechanism-related portion of the gauge device. 1, 3...Bending processing section, 7...Gauge device,
29... Lifting operation device, 57... Gauge case.

Claims (1)

[Scope of utility model registration request] A top die 9 that presses and fixes a plate-shaped workpiece W to a bottom die 5 extending in the left-right direction is provided, and is movable up and down. A bending section comprising a bent beam 21 that can be bent in a direction so as to be vertically movable is used as an abutment gauge device in a sheet material bending apparatus which is spaced apart from each other in the front and back and arranged in a front-back symmetrical manner. A plurality of gauge cases 57 are arranged in the left-right direction between the processing section 1 and the rear bending section 3.
A lift actuating device 29 is provided corresponding to each gauge case 57 so as to be movable in and out of the pass line, and for individually moving each gauge case 57 in and out of the pass line. An abutment gage device for a sheet material bending device, characterized in that a gage body 31 for performing this is provided in each gage case 57 so as to be movable and adjustable in the front and rear directions.