JP2000042661A - Material positioning device for plate working machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a material positioning device for a plate working machine which is capable of working a stock having a specified large size without re- holding and with excellent accuracy, and which is compact in size. SOLUTION: Relating to a material positioning device for a plate working machine 1 in which an X-axis carriage provided with a material holding device 32 is movably provided in the X-axis direction, and a Y-axis carriage 21 capable of moving the X-axis carriage in the Y-axis direction is provided, an X-axis guide rail 27 is provided on the Y-axis carriage 21, a straight motion bearing 29 to be engaged with the X-axis guide rail 27 is provided at plural positions including both ends and a middle part of the X-axis carriage 31, an X-axis carriage driving means capable of moving the X-axis carriage 31 over the span of the Y-axis carriage 21 is provided, and both end parts of the X-axis carriage 31 are movably arranged at the position free from the X-axis guide rail 27.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to a material positioning device for a plate processing machine.

[0002]

2. Description of the Related Art As shown in FIG. 7, in a plate processing machine such as a punch press or a laser processing machine, 3'.times.6 '(9
14 mm x 1,829 mm) or 4 'x 8' (1,2
When processing a fixed-length material W (e.g., 19 mm × 2, 438 mm) without gripping, the X-axis guided by the X-axis guide rail 103 of the Y-axis carriage 101 is used as a means for avoiding an increase in the size of the material positioning device 100. Carriage 105
In order to move the X-axis carriage 105 beyond the span of the Y-axis carriage 101, the length of the X-axis carriage 105 in the X-axis direction is set to Y.
At the same time, the position of the linear motion bearings 107 provided at both ends of the X-axis carriage 105 is arranged inside the length (a) where the X-axis carriage overhangs from the Y-axis carriage. are doing.

[0003]

In the above-described conventional positioning device, the linear motion bearing is disposed inside the X-axis carriage by an amount corresponding to the overhang of the X-axis carriage from both ends of the Y-axis carriage. Also, in the positioning of the frequently used Y-axis carriage within the span, the deflection and vibration of the X-axis carriage generated when the positioning device is moved poses a problem.

The problem can be considerably solved by increasing the span of the Y-axis carriage. However, the positioning accuracy decreases due to the increase in the mass of the Y-axis carriage, the cost increases due to the enlargement of the Y-axis carriage, and the disassembling and installation of the positioning device during machine transport New problems arise, such as the necessity of timely assembly adjustment.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems, and an object of the present invention is to provide a high-precision processing without grasping a large-size fixed-length material and changing the size of the material. An object of the present invention is to provide a material positioning device for a simple plate processing machine.

[0006]

According to a first aspect of the present invention, there is provided a material positioning apparatus for a sheet material processing machine, wherein an X-axis carriage provided with a material holding device is movably provided in the X-axis direction. In addition, in a material positioning apparatus of a plate processing machine provided with a Y-axis carriage capable of moving the X-axis carriage in the Y-axis direction, an X-axis guide rail is provided on the Y-axis carriage and engaged with the X-axis guide rail. Linear motion bearings are provided at a plurality of positions including both ends and an intermediate portion of the X-axis carriage.
The gist of the invention is to provide an X-axis carriage driving means that can move beyond the span of the axis carriage, and that both end portions of the X-axis carriage are provided so as to be movable to positions without the X-axis guide rail.

According to a second aspect of the present invention, there is provided a material positioning apparatus for a plate processing machine according to the first aspect, wherein the X-axis carriage is provided with a rail extending in the X-axis direction. Rail guide means for regulating the positions of the Y-axis carriage in the Y-axis direction and the Z-axis direction.
The gist is that it is provided at both ends in the direction.

According to a third aspect of the present invention, there is provided a material positioning apparatus for a plate processing machine according to the second aspect, wherein the rail guide means holds the upper and lower horizontal planes of the rail. 1 guide roller means and Y
The gist of the invention is that it comprises a second guide roller means for holding a vertical surface separated in the axial direction.

Therefore, according to the material positioning device of the first aspect, since the linear motion bearings are provided at a plurality of positions including both ends and the intermediate portion of the X-axis carriage, the linear movement bearings are provided within the span of the frequently used Y-axis carriage. In the positioning of
Since both ends of the X-axis carriage are guided by the linear motion bearings, it is possible to restrict bending and vibration at both ends.

According to the material positioning device according to the second or third aspect, the X-axis carriage can be reliably and smoothly moved in and out of the X-axis guide rail.

[0011]

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

FIG. 1 shows a turret punch press as a plate processing machine provided with a material positioning device according to the present invention.

The turret punch press 1 has a lower frame 3, left and right columns 5, 7 erected from both sides of the lower frame, and an upper frame 9 bridged between the left and right columns 5, 7. ing.

The lower frame 3 includes a plurality of lower molds 11.
Is provided (see FIG. 2), and the upper frame 9 is provided with an upper turret disk 17 to which a plurality of upper dies 15 paired with the lower die 11 are mounted.

The upper and lower turret disks 17, 13
Are synchronously rotated by a turret disk driving means (not shown), and are provided so that an arbitrary mold station can be freely indexed at a processing center. Above the upper mold 15 at the processing center, a ram 16 for pressing the upper mold 15 is provided to be vertically movable by a known drive mechanism (not shown).

A fixed table 19a is provided on the upper portion of the lower frame 3 from the right column 7 toward the lower turret disk 13. The lower turret disk 1
3 are also provided with fixed tables 19b and 19c.

Above the end of the fixed table 19a on the right column 7 side, a Y-axis carriage 21 is provided extending across the fixed table 19a in the X-axis direction shown in FIG.

The above-mentioned Y-axis carriage 21 is movably provided via a Y-axis guide means 25 on a pair of Y-axis guide rails 23 provided on both sides of the lower frame 3. An X-axis guide rail 27 is laid in the X-axis direction (up and down direction in FIG. 2) over the entire span of (1).

As shown in FIGS. 2 to 5, the X-axis carriage 3
1 is movably provided on the X-axis guide rail 27 via a plurality of linear motion bearings 29.

As shown in FIG. 2, the plurality of linear motion bearings 29 provided on the X-axis carriage 31 are almost equally arranged at a plurality of positions including both ends and an intermediate portion of the X-axis carriage. In addition, the aforementioned linear motion bearing 29
Use the one with a ball retainer.

As shown in FIG. 2, an X-axis feed screw 35 rotatably supports a pair of bearings 33 provided at both ends in the longitudinal direction (X-axis direction) of the Y-axis carriage 21. It is. Then, one end of the X-axis feed screw 35 has X
2 and 3, a nut member 39 is mounted on an upper portion of the X-axis carriage 31, and the nut member 39 is provided with the X-axis feed screw. 35 is screwed.

Therefore, if the X-axis feed motor 37 is driven at an appropriate rotation speed and an appropriate rotation speed (forward or reverse) under the control of an NC controller (not shown), the X-axis carriage 31 Can be moved and positioned at an appropriate position.

The X-axis carriage 31 is provided with a plurality of plate holding devices 32 for holding the plate.

Referring to FIGS. 1 and 2, similarly to the X-axis carriage 31, the Y-axis carriage 21 has a Y-axis feed motor 41 which is driven to rotate under the control of an NC controller (not shown). Y-axis feed screw 43 and Y-axis carriage 2
It is provided so that it can be moved and positioned at an appropriate position on the Y-axis via the nut member 45 provided in 1.

As shown in FIG. 2, the Y-axis carriage 21
Is provided integrally with a moving table 47 (a, b) for moving both sides of the fixed table 19a in the Y-axis direction. The fixed table 19 (a, b, c) and the movable table are provided at the same level and can support the plate at the same height.

As shown in FIGS. 2, 4 and 5, a rail 49 having a rectangular cross section is provided on the upper surface of the X-axis carriage 31 over the entire span of the X-axis carriage 31 in the X-axis direction. On the other hand, at both ends in the longitudinal direction (vertical direction or X-axis direction in FIG. 2) of the Y-axis carriage 21, first guide roller means 50 for holding the upper and lower horizontal planes of the rail 49 is provided. A rail guide means comprising a second guide roller means 60 for holding a vertical plane separated from the rail is provided.

In the first guide roller means 50, the roller bracket 51 is fixed to the end of the Y-axis carriage 21 by fastening means 53 such as bolts, and the roller bracket 51 is provided with a rotatable roller 55 provided with a rotatable roller 55. Axis 5
7 are provided horizontally and vertically separated from each other, and are provided so that the upper and lower surfaces of the rail 49 are held by rollers 55.

Similarly, the second guide roller means 60
A rotary shaft 57 provided with the above-mentioned roller 55 is provided vertically and spaced apart in the Y-axis direction on a roller bracket 61 provided at an end of the Y-axis carriage 21, and the Y axis of the rail 49 is provided.
It is provided so as to pinch a vertical plane separated in the axial direction.

The first guide roller means 50 and the second
By providing the guide roller means 60, the deflection in the Y-axis direction and the Z-axis direction (X,
(A direction orthogonal to the Y axis) can be restricted. As a result, the linear motion bearing 29 can smoothly enter and exit the X-axis guide rail 27.

It should be noted that a commercially available assembly part “cam follower” can be used for the “rotation shaft 57 provided with the roller 55”.

As shown in FIG. 6, both ends of the aforementioned X-axis guide rail 27 are provided with a slight taper and a gradient so that the tip becomes thin.

That is, assuming that the length of the tapered portion is L, a gradient of (AB) / L is provided in the width direction, and a gradient of (CD) / L is provided in the height direction. . A is the width of the rail, B is the width of the rail at the tip, C is the height of the rail, D is the height of the rail at the tip, and A> B, C> D.
It is.

Therefore, the impact when the linear motion bearing 29 enters the X-axis guide rail 27 is reduced, and the entry becomes easy.

In the turret punch press 1 provided with the positioning device having the above-described configuration, a case in which a long plate material W having a long dimension in the X-axis direction is machined without replacement is described.

First, the interval between the plate gripping devices 32 of the X-axis carriage 31 is widened almost to the full extent of the X-axis carriage 31, and then the X-axis carriage 31 is moved to a reference position overhanging the span of the Y-axis carriage. The long plate material W is mounted in the positioned state.

After mounting the long plate material W, the X-axis carriage motor 31 and the Y-axis carriage motor 31 and the Y-axis carriage motor 41 are driven appropriately under the control of an NC controller (not shown). The carriage 21 is moved and positioned at an appropriate position, that is, the plate member W is moved and positioned at an appropriate position, and at the same time, the upper and lower turret disks are rotationally indexed and an appropriate mold is indexed at a processing center position to operate the ram. For example, punching can be performed at an appropriate position on the long plate material W.

In the embodiment, a turret punch press is shown as an example of a plate processing machine. However, the present invention is not limited to the turret punch press, but may be applied to a plate processing machine such as a laser processing machine or a plasma processing machine. Can also be applied.

[0038]

According to the first aspect of the present invention, in positioning the frequently used Y-axis carriage within the span, both ends of the X-axis carriage are guided by linear motion bearings. The generation of bending and vibration can be regulated.

3 ′ × 6 ′ (914 mm × 1,82
9mm) or 4 'x 8' (1,219mm x 2,43
A long plate material such as 8 mm) can be processed without gripping.

According to the second and third aspects of the present invention, in addition to the effects of the first aspect, the X-axis carriage can be reliably and smoothly moved in and out of the X-axis guide rail. .

[Brief description of the drawings]

FIG. 1 is a front view of a plate processing machine (turret punch press) equipped with a material positioning device according to the present invention.

FIG. 2 is a sectional view taken along line AA of FIG.

FIG. 3 is a sectional view taken along line BB in FIG. 2;

FIG. 4 is a sectional view taken along the line CC in FIG. 2;

FIG. 5 is a sectional view taken along line DD in FIG. 2;

FIG. 6 is an enlarged perspective view of a portion E in FIG. 2;

FIG. 7 is a diagram illustrating an example of a material positioning device of a turret punch press as an example of a material positioning device of a conventional plate processing machine.

[Explanation of symbols]

 Reference Signs List 1 turret punch press 3 lower frame 5 left column 7 right column 9 upper frame 11 lower die 13 lower turret disk 15 upper die 16 ram 17 upper turret disk 19 (a, b, c) fixed table 21 Y-axis carriage 23 Y Axis guide rail 25 Y axis guide means 27 X axis guide rail 29 Linear motion bearing 31 X axis carriage 35 X axis feed screw 37 X axis feed motor 39 nut member 41 Y axis feed motor 43 Y axis feed screw 45 nut member 47 (a , B) moving table 49 rail 50 first guide roller means 51 roller bracket 55 roller 57 rotation axis 60 second guide roller means 61 roller bracket

 ──────────────────────────────────────────────────続 き Continued on the front page F term (reference) 3C016 BA06 CE05 HB01 4E048 CA02 CA05 CA11 4E068 CA14 CB05 CE04 CE09 DA14

Claims (3)

[Claims] An X-axis carriage provided with a material gripping device is provided movably in the X-axis direction, and a Y-axis carriage capable of moving the X-axis carriage in the Y-axis direction. In the above, an X-axis guide rail is provided on the Y-axis carriage, linear motion bearings engaging with the X-axis guide rail are provided at a plurality of positions including both ends and an intermediate portion of the X-axis carriage, and the X-axis carriage is provided with the X-axis carriage. An X-axis carriage driving means capable of moving beyond the span of the Y-axis carriage is provided, and both ends of the X-axis carriage are provided so as to be movable to a position without the X-axis guide rail. Material positioning device. 2. The X-axis carriage is provided with a rail extending in the X-axis direction, and rail guide means for regulating the position of the rail in the Y-axis direction and the Z-axis direction is provided on the Y-axis carriage.
2. The material positioning device according to claim 1, wherein the material positioning device is provided at both ends in the direction. 3. The rail guide means comprises: first guide roller means for holding upper and lower horizontal surfaces of the rail;
3. The material positioning apparatus according to claim 2, further comprising a second guide roller means for holding a vertical surface separated in the axial direction.