JPH0314598B2 - - Google Patents

Description

Detailed Description of the Invention (Industrial Application Field) The present invention aims to prevent contamination of the working area of industrial robots due to dust generated by the mechanical parts of industrial robots, and to prevent the dust generated in the working environment from causing irregularities on the robot. Regarding how to install a dust-proof cover that prevents dust from accumulating on parts and contaminating the surface of the robot, more specifically, how to install a dust-proof cover for an industrial robot that prevents dust from forming on the support part that supports the rotating shaft. It is about the method.

(Prior art) Industrial robots are fixed to the floor or mounted on a base that can move along the floor. Figure 4 shows an industrial robot with a base fixed to the floor. FIG. 1 is a perspective view showing an example of a robot.

In the figure, reference numeral 1 denotes a base fixed to the floor surface of the installation location, and a support part 2 on the θ-axis fixed side is provided on the upper part of this base 1, and a predetermined rotation range is provided on the upper part of this support part 2. The inside has a pivot shaft 4 that can rotate
A rotating portion 3 is provided on the movable side of the shaft. An operating section 5 having an arm 5a having a wrist 5b at its tip is attached to the upper part of the pivot shaft 4. Although not shown, a drive device is provided inside the rotating section 3 to move the rotating shaft 4 in the vertical direction to control the height of the operating section 5 within a predetermined range (Z).

Reference numeral 6 denotes a dustproof cover made of sheet metal, which can be divided into left and right parts, and has a supporting part 2 and a rotating part 3 inside.
This prevents the environment outside the dustproof cover from being contaminated by fine dust generated from these members.

When attaching to the base 1 or support part 2, use a plurality of screws 6a from the outside of the dustproof cover 6 to attach it to the base 1 or support part 2, and cover the parts stored inside. There is.

(Problem to be solved by the invention) In this type of dustproof cover, the mounting screw 6a
Since the head of the dustproof cover 6 is exposed on the top and side surfaces of the dustproof cover 6, it spoils the appearance of the dustproof cover and
A problem arises in that dust in the air, chips from processed materials, etc. accumulate on the uneven parts of the robot surface, causing contamination.

The present invention was made in view of these problems, and its purpose is to prevent dust from entering the interior,
When installing a dustproof cover for an industrial robot that does not accumulate dust on its surface, we have developed a method for installing the dustproof cover for an industrial robot that minimizes the exposure of mounting screws and bolts on the top and sides of the dustproof cover. It is on offer.

(Means for Solving the Problems) According to the present invention, shelf-shaped front sides having a predetermined thickness are provided on the front and rear sides of the base of an industrial robot that is housed inside a dustproof cover that can be divided into left and right sides. In addition to forming a rear side part, a means is provided on the inner surface of the front and rear side plates of the dustproof cover to sandwich the front side part and the rear side part from the top and bottom so that the dustproof cover can be moved from side to side. There is provided a method for attaching a dustproof cover for an industrial robot, in which the dustproof cover is fixed to the base by passing through the means and the front and rear sides with a mounting bolt from below when the cover is coupled.

(Function) A shelf-shaped front side and a rear side having a predetermined thickness are provided on the base that is stored inside the splittable dustproof cover, and these front and rear sides are provided on the inner surface of the dustproof cover. When attaching the left and right dust-proof covers, the mounting bolts are tightened from below by passing through the angle pieces, the front or rear sides of the base, and the angle pieces. The dustproof cover can be fixed to the base without exposing the mounting bolts on the top or sides of the dustproof cover.

Embodiments Next, embodiments of the present invention will be described in detail with reference to the drawings.

FIG. 1 is a perspective view showing an embodiment of a method for attaching a dustproof cover for an industrial robot according to the present invention;
FIG. 2 is a partial sectional view of the mounting portion. 1st
In the figures and FIG. 2, parts similar to those described above are given the same reference numerals, and their explanations will be omitted.

Reference numerals 61 and 62 shown in FIG. 1 are a dust-proof cover L and a dust-proof cover R that are divided into left and right parts, and when they are moved from left and right in the direction of the arrow, they use the front side 11 and rear side 12 of the base 1 as guides. It slides to form an integrated dustproof cover that covers the support part 2, the rotating part 3, etc.

Front side 11 and rear side 12 of the top surface of the base 1
form a shelf projecting forward and backward, serve as a guide for sliding the dustproof cover L61 and dustproof cover R62 in the left-right direction, and have a plurality of bolt holes 13 at predetermined positions.

The dust-proof cover L61 and the dust-proof cover R62 are assembled by sheet metal processing, and the connecting portion to be combined with the integrated dust-proof cover is provided with a predetermined connecting means (for example, a convex portion provided on one side is engaged with a concave portion on the other side, etc.). ), and semicircular holes 61a and 62a are provided on the upper surface of each with the connecting part serving as a string, and when the dust-proof cover is connected, the pivot shaft 4 is passed through it so as not to hinder the rotating operation. It is configured.

A square piece 7 is attached horizontally along the lower end to the inner surface of the lower end of the front and rear side plates 65 of the dustproof cover L61, and together with the angle piece 8 described later, covers the front side 11 and rear side 12 of the base 1. Construct a movable means as a guide. A plurality of bolt holes 71 are bored at predetermined positions in the square piece 7, and a counterbore hole 72 is provided below the bolt hole 71 into which the head of a tightening bolt is embedded.

Reference numeral 8 denotes an angle member made of mild steel that is attached above the square member 7, and a dust-proof cover L61 is placed at a distance l' larger than the thickness l of the front side 11 of the base 1 by a predetermined small dimension from the square member 7. It is attached to the inner surface of the side plate 65 of. A plurality of bolt holes 81 are provided at predetermined positions on the horizontal side of the angle member 8, and a nut 82 is inserted in the upper part of the bolt hole 81.
is installed.

Note that the thickness of the rear side 12 of the base 1 is the same as that of the front side 1
1, the distance l' between the square members 7 and 8 provided on the inner surface of the rear plate of the dustproof cover L61 is equal to the distance l' between these members provided on the inner surface of the front plate. Installed at the same spacing.

Further, although not shown, square pieces and angle pieces having the same configuration as the square pieces 7 and angle pieces 8 provided on the inner surface of the dust-proof cover L61 are also attached to the inner surfaces of the front and rear side plates of the dust-proof cover R62.

Reference numeral 83 denotes a mounting bolt, which passes through the bolt hole 71 of the square piece 7, the bolt hole 13 of the base 1, and the bolt hole 81 of the angle piece 8 from below, and screws into the nut 82 to attach the dustproof cover to the base 1. It is fixed.

Next, the operation of this embodiment configured as described above will be explained.

The divided dustproof cover L61 and dustproof cover R62 shown in FIG.
l' is the thickness l of the front side 11 and rear side 12 of the base 1.
engage as a guide. Then, the connecting portions of the dustproof cover L61 and the dustproof cover R62 are connected using a predetermined connecting means, and the bolt holes 71, the bolt holes 13 of the base 1, and the angle piece 8 are inserted from below the square piece 7 using the mounting bolts 83. bolt hole 8
1 and screwed together with the nut 82 to tighten. When the mounting bolt 83 is sufficiently tightened, the head of the mounting bolt 83 is embedded in the counterbore hole 72 of the bolt hole 71 and hidden, and the base
An integrated dustproof cover that covers the base 1 and the supporting part 2 is fixed to the base 1.

FIG. 3 is a partial cross-sectional view showing another embodiment of the present invention. In the figure, the same parts as in FIG. 2 are given the same reference numerals, and the explanation thereof will be omitted.

In the figure, reference numeral 63 is an L formed by bending the lower part of the front and rear side plates 65 of the dustproof cover L61 at right angles inward.
A plurality of bolt holes 64 are bored at predetermined positions in the L-shaped part 63. An angle member 8 is horizontally attached above the L-shaped portion 63 at a position spaced from the upper surface thereof by the distance l'. Note that the angle member 8 is provided with bolt holes 81 and nuts 82 similar to those in the previous embodiment. Further, an L-shaped portion 63 and an angle member 8 having the same configuration as described above are provided on the inner surface of the dustproof cover R62.

To explain the operation of the embodiment having such a configuration, in order to combine the left and right divided dustproof cover L61 and dustproof cover R62 into an integrated dustproof cover,
The interval formed by the angle member 8 and the L-shaped part 63
l' is the thickness l of the front side 11 and rear side 12 of the base 1.
While engaging as a guide, move from left and right to join. Then, the connecting portions of both are connected by a predetermined connecting means, and using the mounting bolt 83,
From the bottom of each L-shaped part 63, bolt hole 6
4. Pass through the bolt hole 13 and the bolt hole 81 of the angle member 8, and screw it into the nut 82. If the mounting bolts 83 are sufficiently tightened, the integrated dustproof cover housing the base 1, the support portion 2, etc. therein will be fixed to the base 1.

Although the present invention has been described with reference to the above embodiments, various modifications can be made within the scope of the present invention, and these are not excluded from the scope of the present invention.

(Effects of the Invention) As described above in detail, the present invention provides a base for an industrial robot that is housed inside a separable dustproof cover, and has shelf-shaped front and rear sides having a predetermined thickness. At the same time, an angle member and a rectangular member are installed horizontally on the inner surfaces of the front and rear side plates of the dustproof cover at a distance from each other, and the distance is configured to engage the thickness of the front side and rear side, Furthermore, using the mounting bolts, move the square timber, base, and
Since the bolts are tightened through the angle material, the mounting bolts are not exposed on the top or side surfaces of the integrated dustproof cover, and a method of attaching the dustproof cover with a clean appearance can be obtained. Furthermore, since there are no mounting bolts exposed to the outside, there is less adhesion of dust in the air or cuttings of processed materials, and there is an advantage that the outside can be kept clean.

[Brief explanation of the drawing]

FIG. 1 is a perspective view showing an embodiment of the method for attaching a dustproof cover for an industrial robot according to the present invention, FIG. 2 is a partial sectional view of the attachment part, and FIG. 3 is a partial sectional view showing another embodiment. 4 are perspective views showing an example of an industrial robot having a base fixed to a floor surface. DESCRIPTION OF SYMBOLS 1...Base, 6...Dustproof cover, 7...Square material, 8...Angle material, 11...Front side part, 12...Rear side part, 61...
Dustproof cover L, 62...Dustproof cover R, 63...L-shaped part, 65...Side plate, 83...Mounting bolt.

Claims (1)

[Scope of Claims] 1. Shelf-shaped front and rear sides having a predetermined thickness are formed at the front and rear of the base of an industrial robot that is housed inside a dustproof cover that can be divided into left and right sides, and A means is provided on the inner surface of the front and rear side plates of the dustproof cover to enable the dustproof cover to be moved left and right by sandwiching the front and rear sides from above and below, and when the left and right dustproof covers are connected, a mounting bolt is inserted from below. A method for attaching a dustproof cover to an industrial robot, characterized in that the dustproof cover is fixed to a base by penetrating the means, the front side part, and the rear side part. 2. A dustproof cover for an industrial robot as set forth in claim 1, characterized in that an angle member is provided at the upper part and an angular member at the lower part is provided on the inner surface of the dustproof cover as a means for allowing the dustproof cover to move from side to side. How to install. 3. The dustproof cover according to claim 1, characterized in that the dustproof cover has an angle member at the upper part and an L-shaped part at the lower part in which the lower end of the dustproof cover is bent inward as means for allowing the dustproof cover to move from side to side. How to install a dustproof cover on an industrial robot.