JPH03149151A - Positioning device for material - Google Patents

Abstract

PURPOSE:To automate positioning of a material by providing constitution such that each reference rule in X, Y directions is moved from a reference position by a predetermined distance with the material pressed back and positioned. CONSTITUTION:A moving means 11, which moves a holding part 11a in X and Y directions respectively by a predetermined distance, and an X-direction reference rule 14, which is brought into contact with a material, held to the holding part 11a moved in the X direction by a moving means 15 formed so as to be moved by a predetermined distance from a reference position, to press back this material to a predetermined position in the X direction on a table, are provided. Next, in contact with the material, held to the holding part 11a moved in the Y direction by a moving means 31 after being formed so as to be moved by a predetermined distance from the reference position, this material is pressed back by a Y-direction reference rule 30 to a predetermined position in the Y direction on the table. In this way, positioning of the material is completed.

Description

Detailed Description of the Invention [Industrial Application Field] The present invention relates to a material positioning device for positioning a material at a predetermined position on a table. It is used when positioning a workpiece material at a predetermined position on a processing table.

[Conventional technology]

In wood processing equipment equipped with a cutting tool whose movement is controlled in three axes by numerical control, it is necessary to accurately position the workpiece material (hereinafter simply referred to as the material), such as a board, at a predetermined position on the processing table. There is. Conventionally, reference rulers in the X and Y directions were provided on the table, and the material was manually brought into contact with these reference rulers to determine its position. After positioning, the material was fixed on the table by vacuum suction. I have to.

[Problem to be solved by the invention]

Conventional positioning work is performed manually for each material, which is inefficient, and when processing parts of the material that are in contact with the reference ruler, the reference ruler must be retracted. However, there were problems in that the mechanism for this purpose was complicated.

[Means to solve the problem]

In the material positioning device according to the present invention, a material supplying device that brings the material onto the table while holding the material is provided with a moving means for moving the material holding portion by a certain distance in the X and Y directions, and the material is placed on the table side. The X-direction and Y-direction reference members respectively push back the materials moved by the moving means to the reference positions in the X- and Y-directions.

[For production]

By controlling the moving means, reference member, etc. at predetermined timing, the work of positioning the material on the table is automatically performed.

[Example J An embodiment of the present invention will be described below with reference to the drawings.

First, the structure of a table of a material processing apparatus applicable to the present invention will be explained with reference to FIG.

In the figure, a table 1 is provided with guide rails 2.degree. 3.4, and a plurality of suction units 5 are provided movably in the Y direction along the guide rails 2, 3.4. This suction unit 5 is provided with five suction devices 7 having suction pads 6, each movable in the X direction and the Y direction. In addition, X of the adsorption unit 5 and the adsorption device 7.

Movement in the Y direction is performed by a motor (not shown) provided in each suction unit 5 and a motor (not shown) provided in each suction device 7.
(not shown).

According to the above configuration, as shown in FIG. 6, the suction pad 6 used is selected as shown by the dotted line depending on the size and shape of the material 8 placed on the table l, and the suction pad 6 is selected as shown by the solid line. The unused suction buff dross can be lowered so that it does not interfere with the lowering of the cutting process. Furthermore, as shown in FIGS. 7(A) and 7(B), a plurality of suction pads 6 can be moved according to the size and shape of the material 8 to control the spacing between them.

In the state shown in FIGS. 6 and 7, the material 8 can be suctioned and fixed onto the table 1 by operating the vacuum pumps to which each suction device 7 is connected.

Next, an embodiment of a material positioning device using the table I configured as described above will be described.

In FIG. 1, 1 indicates the above table, and Y in FIG.
It is illustrated as a front view from the direction. 9 is material 8
The table! This is a conveying device that conveys the object to the vicinity, and has a large number of rollers 9a on the upper part.

10 transports the processed material to the next process.

It is a conveying device and has a large number of rollers loa.

if is a transfer device serving as a material supply device for transferring the material 8 from the transfer device W9 and supplying it to the table l, and transferring the processed material from the table l to the transfer device IO. 12 is a guide portion that guides the transfer device 11;
Both ends are supported by legs 13. 14 is the X-direction reference ruler placed at the reference position, 15 is the above-mentioned X-direction reference ruler 1
4 by a predetermined distance in the X direction (to the left in the figure) from the reference position.

Although not shown, a Y-direction reference ruler is placed at a reference position, and a Y-direction reference ruler is used to move the Y-direction reference ruler a predetermined distance from the reference position in the Y direction (direction perpendicular to the page). A direction reference cylinder arrangement is provided.

In addition, in FIG. 1, the material 8 positioned on the table l
A processing device for numerically controlled cutting is not shown.

FIG. 2 is an exploded perspective view showing the structure of the transfer device 11.

This transfer device 11 includes a substrate 16, a motor 17 for correcting material position distortion attached to this substrate 16, a Z-direction vertical cylinder device 18, four vertical slide units 19, a vertical substrate 20, and a material position twist correction motor 17 attached to this substrate 16. A vertical slide shaft 21 provided on the substrate 20 and vertically movably fitted into the vertical slide unit 19, and a mounting shaft 16a provided on the substrate 16 are screwed through the hole 20a of the vertical substrate 20, and 20, a rotating plate 22 for correcting material position twist, a fixed substrate 23 provided with this rotating plate 22, and an X provided on this fixed substrate 23.
The direction is brought together using the cylinder device 24 and the
A direction slide plate 25, a Y direction slide plate 26 that slides in the Y direction with respect to this slide plate 25 via a slide portion 26a, a holding board 27 to which this sliding plate 26 is fixed, and a structure provided on this holding board 27. The cylinder axis 24 of the cylinder device 24 is composed of a cylinder device 28 and six suction bars 29 for material handling attached to a pair of holding members 27a.
The tip of a is attached to the mounting member 2 provided on the slide plate 25.
5b. Further, the tip of the cylinder shaft 28a of the cylinder device 28 is fixed to the slide plate 25.

FIG. 3 explains the operation of the transfer device Wll, and schematically shows only the main members 22 to 29 in FIG. 2. Note that the portion consisting of these main members will hereinafter be referred to as the movable holding section 11a.
, when the cylinder device Jl 2 4 is operated,
The cylinder shaft 24a is fully extended by a predetermined length X. As a result, as shown in FIG. 3(B), the slide plates 25 and 26
The holding substrate 27 integrally moves by a distance X in the X direction with respect to the fixed substrate 23. Further, in FIGS. 2 and 3A, when the cylinder device 28 is operated, the cylinder shaft 28a is fully extended by a predetermined length y. As a result, as shown in FIG. 3(C), the slide plate 2G and the holding board 27 are integrated into the fixed board 23 and the slide plate 2.
5 in the Y direction by a distance My.

Next, the operation of positioning the material 8 on the table 1 using the transfer device 11 will be explained with reference to FIG. 4.

First, as shown in FIG. 4(A), the movable holding section 11a is waiting above the conveying device 9, and when the material 8 is conveyed, the two-way up and down cylinder device 18 is operated to move it. The holding portion 11a descends as shown by the arrow. Next, the same figure (B
) After the suction pad 29 suctions and holds the material 8,
The transfer device 1 rises as shown by the arrow and moves from the state shown in Figure (C).
1 moves to the left in the diagram (to the left in Figure 2), stops above table l as shown in Figure (D), and then descends. Then, as shown in the same figure (E), it stops at a position a certain distance A above the top of the table l. Near table 1,
The aforementioned X-direction reference ruler 14, an X-direction reference cylinder device l5 for moving it, a Y-direction reference ruler 30, and an X-direction reference cylinder device l5 for moving it are arranged.

Next, by operating the cylinder device 24 for moving in the X direction as shown in FIG.
A member below the fixed substrate 23 moves by a distance X in the X direction (rightward in the figure). Similarly, for Y-direction shifting, the cylinder device 28 moves the member below the slide plate 25 by a distance My in the Y-direction. As a result of the above, the material 8 is moved in the x and y directions from the position when it was sucked.

Next, in this state, it is detected whether the sides of the material 80 that face the X and Y direction reference rulers 14.30 are parallel to these reference rulers 14.30. If they are not parallel, the correction motor 17 is driven to rotate the correction rotary plate 22, thereby twisting and rotating the movable holding part 11a until the parallelism is obtained. Note that the detection of the parallel state is performed, for example, by image processing using a camera or the like.

Next, when the above-mentioned parallel state is obtained, as shown in FIG. pushes back this material 8. As a result, the amount of deviation between the fixed substrate 23 and the slide plate 25 becomes XI <x, and the material 8 is positioned in the -X direction. Similarly, when the cylinder device 31 moves the material 8 a predetermined distance while pushing it back with the Y-direction reference ruler 30,
The material 8 is positioned in the Y direction. At this time, the deviation MyI between the slide plate 25 and the slide plate 26 satisfies yl<y. It should be noted that the force of the reference cylinder device 15.31 is greater than the force of the cylinder device 24.28 used for pulling.

When the positioning of the material 8 is completed as described above, the material 8 is placed on the upper surface of the table l as shown in (H) in the same figure, and then the movable holding part 11a is raised, and then as shown in (J) in the same figure. The transfer device 11 moves to the right as shown in FIG. 3A and returns to its original position in FIG.

On the table 1, as explained with reference to FIG. 6, it is fixed by suction.

Note that the above embodiment uses a table l provided with a plurality of suction devices w7 having suction pads 6 as shown in FIG. It can also be applied to the case of positioning the material 8 on the table. In that case, a jig plate is used in which a large number of penetrating suction holes are arranged according to the size and shape of the material 8.

This jig plate is fixed on a table with a stopper, and positioning is performed on this jig plate in the same manner as shown in FIG. 4 using the above-described positioning device of the present invention. After the positioning is completed, the material 8 is sucked and fixed onto the table together with the jig plate through the suction holes on the table and the suction holes in the jig plate.

Further, even when using the table 1 shown in FIG. 5, the jig plate may be placed on a suction pad when the material 8 is small or has a complicated shape.

【Effect of the invention〕

As described above, according to the present invention, in a material supply device such as a transfer device that supplies materials onto a table, the held material is moved in the X and Y directions in advance, and each reference ruler in the X and Y directions is set. The material is positioned by moving it a predetermined distance from the reference position and pushing back the material, so by controlling the movement of the material and the movement of the reference ruler, automation of positioning is achieved. Moreover, by using a cylinder device or the like as a moving means, effects such as being able to easily move the material and the reference ruler can be obtained.

[Brief explanation of the drawing]

Fig. 1 is a front view showing a material positioning device according to an embodiment of the present invention, Fig. 2 is an exploded perspective view showing a transfer device of the same device, and Fig. 3 is a perspective view of essential parts showing the operation of the transfer device. , FIG. 4 is a plan view and a front view of the main parts showing the operation of the positioning device, FIG. 5 is a plan view showing a table applied to the present invention, and FIGS. 6 and 7 are views of the suction pad on the table. FIG. 3 is a plan view showing the operation. 1 is a table, 8 is a material, 11 is a transfer device, 11a is a movable holding unit, 14 is an X-direction reference ruler, 15 is an X-direction reference cylinder device, and 24 is a cylinder device for moving in the X-direction.
5 is an X-direction slide plate, 26 is a Y-direction slide plate, 2B
29 is a cylinder device for moving in the Y direction, 29 is a suction pad,
30 is a Y-direction reference ruler, and 31 is a Y-direction reference cylinder. In addition, in the figures, the same reference numerals indicate the same or equivalent parts.

Claims (1)

[Claims] A material supply device that is provided with a holding section that holds a material and places the held material on a table, and a movement that is provided on the material feeding device and moves the holding section by a predetermined distance in the X direction and the Y direction, respectively. means, and the material is moved by a predetermined distance from a reference position and is moved in the X direction by the moving means, and comes into contact with the material held by the holding section to move the material to a predetermined position on the table in the X direction. The X-direction reference ruler pushes back, and the material is moved in the Y-direction on the table by contacting the material held in the holding section, which is moved a predetermined distance from the reference position and moved in the Y-direction by the moving means. A material positioning device equipped with a Y-direction reference ruler that pushes the material back to a predetermined position.