JPH0752079A - Dust cover for xy robot and xy robot incorporating dust protecting device - Google Patents

Abstract

PURPOSE:To provide a dust protecting cover and an XY robot which can cope with a long stroke. CONSTITUTION:A dust cover 7A is composed of a pair of rectangular bellows 10A, 10B which are fixed to opposite sides of a connecting member 2 so that they are arranged on a straight line, and cylindrical bellows 11 are fixed to the connecting member 2, perpendicular to the pair of rectangular bellows 10A, 10B. The dust cover 7A is attached to a dust protecting box in which an XY robot body 2 is located, so as to cover an opening 4 of the box 3 therewith, and accordingly, an XY robot 1A using the dust cover 7A is completed. With this arrangement, it is possible to cope with a large stroke in two directions, and accordingly, the working area of the XY robot 1A using the dust cover 7A can be enlarged.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an XY robot equipped with a dustproof device for performing coating work and the like.

[0002]

2. Description of the Related Art First, an XY robot for coating work equipped with a conventional dustproof device will be described with reference to FIG. FIG. 7 is a conceptual diagram for explaining the configuration of an XY robot for coating work provided with a conventional dustproof device.

Reference numeral 1 indicates an XY robot for coating operation (hereinafter, simply referred to as "XY robot") equipped with a dustproof device as a whole. The XY robot main body 2 of this XY robot 1 for coating work is housed inside a dustproof box 3,
The robot arm 5 of the XY robot body 2 is projected through an opening 4 formed on one side surface of the dustproof box 3, and a spray nozzle 6 is attached to the tip of the robot arm 5 so that a coating operation can be performed.

Then, dust such as paint particles for application becomes X
If it adheres to the Y robot main body 2, the XY robot main body 2 easily breaks down. Therefore, for example, a vinyl dustproof cover 7 covers the robot arm 5 and the opening 4 so as to cover the robot arm 5 and the opening 4. Is attached to. During the coating work with this dustproof cover 7,
The paint particles are prevented from adhering to the XY robot body 2.

[0005]

However, with such a dustproof cover, the stroke of the robot arm 5 is limited because of its low degree of freedom, and therefore the operating area 8 thereof is limited, resulting in a large stroke. In the case of the XY robot, the dustproof cover was often twisted or pulled, and the dustproof cover was often damaged.
Further, even if the dustproof cover is not immediately damaged, it has a drawback that its life is shortened and the dustproof cover is replaced more frequently.

[0006]

In order to solve the above problems, in the dust cover for an XY robot of the present invention, a pair of square bellows are fixed on both sides of a connecting member so as to form a straight line, and the connection is further made. A cylindrical bellows is fixed to the member in a direction intersecting with the pair of square bellows.

Further, an XY robot equipped with the dustproof device of the present invention accommodates the main body of the XY robot therein, and has a central portion on the opening of a dustproof box in which a rectangular opening in the X-axis direction is formed. A connecting member having a through hole is disposed in the connecting member, one end of a pair of rectangular bellows is fixed to both ends of the connecting member, and both rectangular bellows cover the opening to form a straight line in the X-axis direction. The other end of the cylindrical bellows is fixed to the outer surface of the dustproof box, and one end of the cylindrical bellows is further fixed to the connecting member in the Y-axis direction with respect to the pair of square bellows, and the other end and the connecting member. The robot arm was projected from the inside through the through hole.

[0008]

Therefore, it is possible to cope with a large stroke in the X-axis direction and the Y-axis direction.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of an XY robot equipped with a dustproof cover for an XY robot and a dustproof device according to the present invention will be described below with reference to FIGS. FIG. 1 is a conceptual diagram of an embodiment for explaining the configuration of an XY robot for coating work provided with a dustproof device of the present invention, and FIG. 2 is a dustproof cover which is one of the present invention shown in FIG. 3 is a partially enlarged perspective view of FIG.
Shows an embodiment of a connection structure of a rectangular bellows and a cylindrical bellows, FIG. A is a perspective view of the connecting member, and FIG. B is a view of the connecting member of FIG. A partial cross-sectional view taken along the line BB of FIG. A, and FIG. C is a partial cross-sectional view taken along the line C-C of FIG. A in the state where the cylindrical bellows are fixed to the connection member of FIG. 4 is a plan view of a supporter for attaching the dustproof cover and the connecting member of the present invention to the dustproof box, and FIG. 5 is a plan view of the supporter of FIG. 4 provided with a flange for slidably attaching the dustproof cover, and further to a square bellows. FIG. 6 is a cross-sectional view of the supporter of FIG. 4 taken along the line AA in a state in which is attached, and FIG. 6 is an exploded perspective view for explaining the attachment structure of the rectangular bellows. It should be noted that the same components as those of the XY robot provided with the conventional dustproof device are designated by the same reference numerals, and the description thereof will be omitted.

In FIG. 1, reference numeral 1A indicates an XY robot for coating work equipped with a dustproof device. The body 2 of the XY robot 1A is housed inside a dustproof box 3 as in the conventional art, and the XY robot 1A is provided with a rectangular opening 4 elongated in the X-axis direction on one side surface of the dustproof box 3. The robot arm 5 of the main body 2 is projected, and the spray nozzle 6 is attached to the tip of the robot arm 5 so that the coating operation can be performed.

In this embodiment, in order to prevent the coating particles for coating from adhering to the XY robot body 2, a pair of square bellows 10A, 10B are formed so as to cover the robot arm 5 and the opening 4. A dustproof cover 7A composed of a cylindrical bellows 11 is attached to the dustproof box 3.

FIG. 2 shows an enlarged view of a part of the structure of the dustproof cover 7A. The structure is the same as the connecting member 1 shown in FIG. 3A.
A pair of square bellows 10A on both opening surfaces 12A, 12B of
10B are fixed at their one ends so as to form a straight line (FIG. 3B), and further, on the upper surface 12C of the connecting member 12, the pair of linearly connected rectangular bellows 1
Cylindrical bellows 1 so that it is perpendicular to 0A and 10B
One end of 1 was fixed (Fig. 3C).

As shown in FIG. 3A, the connecting member 12 is formed, for example, by bending a single metal plate so as to have a U-shaped cross section and forming two opening surfaces 12A and 12B and an upper surface 12C. The upper surface 12C has a through hole 13 into which the one end 11a (FIG. 2) of the cylindrical bellows 11 can be fitted.

The ends of the rectangular bellows 10A, 10B are connected to the opening faces 12A, 12B of the connecting member 12 by bonding or bolting. Figure 3C
Shows the case of bonding with an adhesive. Further, the end of the cylindrical bellows 11 is formed on the upper surface 12C of the connecting member 12 as shown in FIG.
As shown in C, the flange 1 is attached to the end of the cylindrical bellows 11.
4 and the flange 14 is connected to the upper surface 12C of the connecting member 12 by tightening the flange 14 with a plurality of mounting bolts 15.

Next, referring to FIGS. 4 to 6, the pair of rectangular bellows 10A, 10B (in these figures, the rectangular bellows 10 is shown).
(A is shown only), the structure of covering the opening 4 formed in the dustproof box 3 and attaching it to the dustproof box 3 so that dust does not enter will be described.

First, the pair of square bellows 10A, 10B.
The structure for fixing the end of the to the dustproof box 3 will be described. To this end, first, the supporter 20 having the structure as shown in FIGS. 4 and 5 is provided around the opening 4 of the dustproof box 3.
To fix. The supporter 20 includes a pair of parallel connecting beams 21A and 21B which are arranged along the long side of the opening 4 and are spaced apart by the width of the opening 4 and mounting portions 22A having L-shaped cross sections formed at both ends thereof. 22B and 22B.

On the other hand, in order to guide the rectangular bellows 10A, 10B, a flange 30 as shown in FIG. 6 is prepared. This flange 30 is overlapped with the pair of connection beams 21A and 21B along the long side of the opening 4, and a support portion 32 having an opening 31 of the same size as the opening 4 is formed in the center. A pair of parallel distance maintaining portions 33A, 33B rising from the outer edge of the supporting portion 32.
And a pair of parallel rails 34A and 34B that are bent in parallel to the support portion 32 from both ends of the interval holding portions 33A and 33B are integrally formed. The widths of the space holding portions 33A, 33B are a collar 10C having a width L formed in the openings of the square bellows 10A, 10B.
Is formed to have a width (Fig. 6).

First, as shown in FIG. 5, the supporter 20 is provided with a bolt 23 around the opening 4 of the dustproof box 3.
Then, the support portion 32 of the flange 30 is adhered onto the connection beams 21A and 21B of the supporter 20 with an adhesive or the like to fix the flange 30.

First, the XY robot body 2 is housed in the dustproof box 3 having such a mounting device, and then one of the square bellows 10A is mounted. That is, as shown by the arrow X in FIG. 6, the flange 10C of the square bellows 10A is attached to the rails 34A and 34B of the flange 30 and the opening 4a.
3 and the connection member 12 shown in FIG. 3 is fitted.

At this time, the robot arm 5 and the spray nozzle 6 are passed through the through holes 13 of the connecting member 12. Then, one end of the square bellows 10A is bonded to the mounting portion 22B of the supporter 20, and the other end is bonded and fixed to the opening surface 12B of the connecting member 12.

Similarly, the rectangular bellows 10B is fitted into the flange 30, one end of which is adhered to the opening surface 12A of the connecting member 12, and the other end thereof is the supporter 20.
It is adhered and fixed to the mounting portion 22A. Next, a cylindrical bellows 11 is attached to the upper surface 12C of the connecting member 12 through the robot arm 5 and the spray nozzle 6, and the lower end thereof is tightened with a mounting bolt 15 via a flange 14 as shown in FIG. 3C. , Fixed, also this cylindrical bellows 1
The upper end portion 11a of 1 is bonded and fixed to the tip portion 5a of the robot arm 5. In this way, the dustproof cover 7A is completed and the XY robot body 2 can be sealed. In this way, the XY robot body 2 built in the dustproof box 3 is hermetically sealed and is in a dustproof state.

With this configuration, when the XY robot 1A moves in the X-axis direction, the double-sided bellows 10
When A and 10B expand and contract with each other, the cylindrical bellows 11 expand and contract with each other when they move in the Y-axis direction.

[0023]

As described above, the dustproof cover of the present invention can cope with a large stroke in the X-axis direction and the Y-axis direction, and therefore, the XY of the present invention using this dustproof cover.
The robot has a wide operation area, high dust resistance, and long life.

[0024]

[Brief description of drawings]

FIG. 1 XY for coating work equipped with the dustproof device of the present invention
It is a conceptual diagram of one Example for demonstrating the structure of a robot.

FIG. 2 is a partially enlarged perspective view of the dustproof cover which is one of the present invention shown in FIG.

3A and 3B show an embodiment of a connecting structure of a rectangular bellows and a cylindrical bellows, FIG. 3A is a perspective view of a connecting member, and FIG. 3B is a connecting member of FIG. A partial cross-sectional view taken along the line BB of FIG.
C- in the same figure A with the cylindrical bellows fixed to the connecting member
It is a partial cross section figure on C line.

FIG. 4 is a plan view of a supporter for attaching the dustproof cover and the connecting member of the present invention to the dustproof box.

5 is a cross-sectional view of the supporter of FIG. 4 taken along the line AA, in which a flange for slidably attaching a dustproof cover is attached to the supporter of FIG. 4 and further a square bellows is attached.

FIG. 6 is an exploded perspective view for explaining a mounting structure of a rectangular bellows.

FIG. 7 is a conceptual diagram for connecting the configuration of an XY robot provided with a conventional dustproof device.

[Explanation of symbols]

 1A XY robot equipped with the dustproof device of the present invention 2 XY robot body 3 Dustproof box 4 Opening 5 Robot arm 6 Spray nozzle 7A Dustproof cover 8 of this invention 8 Operating area 10A Square bellows 10B Square bellows 10C Collar 11 Cylindrical bellows 12 Connection member 13 Through hole 14 Flange 20 Supporter 21A Connection beam 21B Connection beam 22A Attachment part 22B Attachment part 30 Flange 31 Opening 32 Support part 33A Interval holding part 33B Interval holding part 34A Rail 34B Rail

Claims (2)

[Claims] 1. A pair of rectangular bellows are fixed on both sides of the connecting member so as to form a straight line, and a cylindrical bellows is fixed to the connecting member in a direction intersecting with the pair of rectangular bellows. A dustproof cover for an XY robot characterized by being configured. 2. An XY robot having a structure in which a body of an XY robot is housed inside a dustproof box in which a rectangular opening in the X-axis direction is formed, and a robot arm is projected from the inside through the opening. A connecting member having a through hole is formed on the opening, and one end of a pair of square bellows is fixed to both ends of the connecting member, and the square bellows cover the opening and form a straight line in the X-axis direction. The other ends of the cylindrical bellows are fixed to the outer surface of the dustproof box so as to form a shape, and one end of the cylindrical bellows is further fixed to the connecting member in the Y-axis direction with respect to the pair of square bellows, and the other end and An XY robot having a dustproof device, wherein the robot arm is projected from the inside through a through hole of the connecting member.