JP2504472B2 - Back gauge device for plate processing machine - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION a. Field of Industrial Application This invention relates to an improvement in a back gauge of a plate material processing machine.

b. Conventional technology Conventionally, the back gauge for plate positioning of plate processing machines is positioned by manually or electrically moving the abutting member in the front-rear direction (length measuring direction) according to the processing length of the plate. Then, the plate material was abutted against this to position the plate material. The abutting member of the back gauge can be moved and adjusted in the left and right direction according to the width of the plate material,
Adjustment of this butting member was generally done manually on the back of the machine.

c. Problems to be Solved by the Invention In the conventional back gauge as described above, when the plate material is thin and the length measurement is long, the plate material is between the machined part of the machine and the butting member of the back gauge, It drooped due to its own weight, causing an error in the measurement of the plate material. Also, if the width of the plate material changes significantly, multiple abutting members are required to maintain the measuring accuracy, and it is extremely inefficient to adjust these abutting members manually behind the machine. Met.

The present invention was devised with such points in mind, prevents drooping of the plate material, and can maintain high measurement accuracy even when the width of the plate material changes significantly, and is an efficient plate material. An object of the present invention is to provide a back gauge device for a processing machine.

d. Means for Solving the Problem In view of the conventional problems as described above, the present invention provides a plurality of back gauge main bodies horizontally extending in a direction orthogonal to a linear guide member in the guide member. The abutting members that are mounted so as to be able to individually move in the directions toward and away from each other so as to be controlled, and individually move the abutting members for abutting and positioning the plate material to the back gauge bodies in the longitudinal direction of the back gauge bodies. A support member that is controllably mounted and that supports a plate member that abuts against the abutment member to perform positioning from below is attached to each of the back gauge bodies so as to be vertically movable.

e. Action In the above configuration, by individually controlling the movement of the back gauge main bodies in the direction of approaching and separating from each other, the distance between the back gauge main bodies can be quickly made to correspond to the width of the plate material, and each abutting member can be adjusted. By controlling movement individually,
Even if the abutting side of the plate material is inclined or the shape is such that a large step is formed, it is possible to easily cope with it. Then, the plate member can be supported from below by each supporting member provided in each back gauge body, and the plate member can be prevented from bending due to its own weight.

f. Embodiments Next, embodiments of the present invention will be described with reference to the drawings. FIG. 1 is a side view of a press brake equipped with the back gauge device of the present invention. The press brake 1 consists of a side frame 3, an upper apron 5, a lower apron 7, etc.
An upper die 9 is attached to the upper apron 5, and a lower die 11 is attached to the lower apron 7. The plate material W is positioned by the back gauge device 13, sandwiched between the upper die 9 and the lower die 11 by the hydraulic cylinder 15, and bent.

FIG. 2 is a three-dimensional view of an embodiment of the back gauge device.
The back gauge device 13 comprises two back gauges 17 and 19 and a common guide member 21, and the back gauges 17 and 19 are independently movably provided in the X-axis direction.
Since the back gauges 17 and 19 have the same structure, the structure of the back gauge 17 will be described in detail.

The back gauge 17 includes a back gauge main body 23, an X-axis direction moving device 25, an abutting device 27, a plate material supporting device 29, and the like. The back gauge main body 23 has a rectangular shape as shown in the drawing, and a groove 31 is provided in the central longitudinal direction of the upper surface so that a hitting device 27 described later can move in the Y axis direction (length measuring direction). Inside thereof, a ball screw device (not shown) driven by a step motor 33 is provided.

The X-axis direction moving device 25 is provided at the left end of the back gauge body 23, and a pinion (not shown) driven by a step motor 35 is provided on the rack 37 provided on the guide member 21.
The back gauge main body 23 can be freely moved in the X-axis direction.

The abutting device 27 includes an abutting member 39, an abutting device body 41, etc., and the abutting member 39 is attached to the abutting device body 41 so as to have a predetermined height and fixed by a handle 43. In the butting device body 41, a nut portion (not shown) provided at the lower portion is screwed into a ball screw provided inside the groove of the back gauge body 23, and the step motor 33 corresponds to the processing length of the plate material. It is possible to move freely in the Y-axis direction (length measuring direction).

The plate material support device 29 is provided on the side surface of the back gauge main body 23, and includes air cylinders 45 and 47, levers 49 and 51, a support member 53, and the like. The support member 53 is provided immediately below the moving surface of the abutting member 39. When compressed air is sent to the air cylinders 45 and 47 as needed, the support member 53 rises to a certain height and supports the plate material.

Next, a usage example of this back gauge device will be described. When the plate material W is relatively thin and the distance between the molds 9 and 11 and the abutting member 39 (hereinafter referred to as the length measuring section) is long, the plate material hangs as shown in FIG. 3, but the plate material supporting device is operated. Let the support member
When 53 is raised, the plate W becomes horizontal as shown in FIG. 4 and no length measurement error occurs.

When the width of the plate material W is wide and the length measuring section is long, the abutting members 39, 39 of the two back gauges are fixed at wide intervals corresponding to the width of the plate material as shown in FIG. If necessary, activate each plate support device. When the width of the plate material W is extremely narrow and the length measuring section is long, the plate material W is placed on one back gauge by operating the plate material supporting device as shown in FIG.

When the lengths of the length measuring parts of the plate material are different, the back gauge is fixed corresponding to each length measuring part as shown in FIG.

In the case of bending a three-dimensional plate material forming a part of a cone, use three back gauges as shown in FIG.
These can be appropriately moved and processed.

Also, attach multiple sets of dies to the press brake,
If this back gauge device is used, the work efficiency can be improved.

It should be noted that this embodiment is merely an example, and can be implemented in different modes within the technical scope of the invention.

g. Effects of the Invention As will be understood from the above description of the embodiments, in short, the present invention is based on a plurality of back gauge main bodies (2) horizontally extended in a direction orthogonal to the linear guide member (21).
The guide member (21) is attached to the guide member (21) in such a manner that the movement of the plate member (W) can be controlled individually. In each back gauge body (23), the back gauge body (23)
A plate member (W) which is mounted so that its movement can be controlled individually in the longitudinal direction, and which is positioned by abutting against the abutting member (39).
A supporting member (53) for supporting the above from below is attached to each of the back gauge main bodies (23) so as to be vertically movable.

As is apparent from the above-mentioned configuration, in the present invention, the plurality of back gauge main bodies 23 are provided so that the movements thereof can be individually controlled in the directions toward and away from each other, and the abutting members 39 mounted on the respective back gauge main bodies 23. Are provided so that the movement of the back gauge main body 23 can be controlled individually in the longitudinal direction. Further, a support member 53 for supporting a plate member that abuts against the abutting member 39 from below is attached to each back gauge main body 23 so as to be vertically movable.

Therefore, according to the present invention, the interval between the back gauge bodies 23 can be automatically adjusted in accordance with the width of the plate material W processed by the plate material processing machine, and the interval adjustment can be performed quickly and easily. It is a thing.

Also, each butting member attached to each back gauge main body 23
By individually controlling the movement of 39, each abutting member 39 can be easily positioned corresponding to the shape of the abutting side of the plate material W. For example, when the abutting side is inclined, Even if a large step is formed, it can be easily dealt with.

Further, since the support member 53 is attached to each back gauge main body 23 so as to be movable up and down, it is possible to prevent the plate material W from bending under its own weight when the plate material W is abutted against the abutting member 39. It is possible to perform accurate butting and positioning of the plate material W.

[Brief description of drawings]

FIG. 1 is a side view of a press brake using the present invention,
FIG. 2 is a three-dimensional view of an embodiment of the present invention. FIGS. 3 to 8 are explanatory views of examples of use of the back gauge device of the present invention, etc. FIG. 3 is a thin plate with a long length measuring section, and FIG. 4 is a case where a plate supporting device is operated. Fig. 5 shows the case where the width of the plate is wide and the length measuring section is long, Fig. 6 shows the case where the width of the plate is extremely narrow and the length measuring section is long, and Fig. 7 shows the case where the length measuring section of the plate is different. FIG. 8 shows a case where a three-dimensional plate material forming a part of a conical shape is measured by three back gauges. Description of symbols showing main parts of the drawing 1 ... Press brake 13 ... Back gauge device 17, 19 ... Back gauge 21 ... Guide member, 25 ... X-axis direction moving device 27 ... Butting device, 29 ... Plate material supporting device 33, 35 ... Step motor 39 ... Butting member, 53 ... Support member

Claims (1)

(57) [Claims] 1. A plurality of back gauge main bodies (23) extending horizontally in a direction orthogonal to a linear guide member (21).
Are mounted to the guide member (21) so as to be individually movable and controllable in the directions of approaching and separating from each other, and the abutting member (39) for performing abutting positioning of the plate (W) is provided in each of the backs. A plate material (W) is mounted on the gauge body (23) so as to be individually controllable to move in the longitudinal direction of the back gauge body (23), and a plate member (W) for abutting and positioning the abutting member (39) is provided from below. A back gauge device for a plate material processing machine, wherein a supporting member (53) for supporting is attached to each of the back gauge main bodies (23) so as to be vertically movable.