JPS586627Y2 - Movable platform guide device - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a guide device for guiding a movable platform moved by a feed motor or the like.

The movable table on which the welding head, etc. is placed is generally guided by rails, but in the past, the upper or outer surface of the rails was used as the guide surface, so welding debris and dust scattered during welding could be deposited on the guide surface of the rails. It easily adhered, making it difficult to smoothly guide the movable platform over a long period of time.

In view of these conventional drawbacks, the present invention has a structure in which it is difficult for welding debris, dust, etc. to adhere to the guide surface, and the carrier body, which is moved by a drive device, is moved inside a U-shaped guide rail by a roller or the like. At the same time, a cover plate wider than the opening is provided at the opening of the guide rail, and this cover plate is fixed to the guide rail at both ends in the direction of movement. The present invention is characterized in that a bracket is attached so as to pass between the cover plate and the guide rail and protrude from both ends of the cover plate, and the movable base is supported by the end attachment portion of the bracket.

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

In FIGS. 1 to 4, reference numeral 10 denotes a guide rail having a U-shaped cross section and an opening 11 at the top.
0 contains a feed screw 12, a universal joint 13, and a gear box 1.
4 to the drive motor 15, the drive motor 15
A carrier body 16 that is moved by the rotation of the carrier body 16 is housed therein.

The carrier body 16 includes rollers 17a and 17b that abut against the bottom guide surface 10a of the guide rail 10.

17c, 17d and the inner guide surface 10 of the guide rail 10
rollers 18a, 18b, 18c that come into contact with b.

18d, 18e, 18f and rollers 19a, 19b which are still in contact with the upper guide surface 10c on both sides of the opening 11 are rotatably fixed and buttoned, and these rollers 17a to 17d
, 18a to 18f, 19a, and 19b, the carrier body 16 is guided.

Further, a guide rail 10 is provided at the front end of the guide rail 10.
A fixed block 20 whose height is higher than that by a predetermined amount is fixed, and the upper surface of this fixed block 20 and the gear box 14
Mounting surface 1 formed on the top and at the same height as the fixed block 20
A cover plate 21 wider than the opening 11 of the guide rail 10 is mounted between the opening 11 of the guide rail 10 and the opening 11 of the guide rail 10.
is covered.

On the other hand, a bracket 22 is fixed to the side wall surface 16a of the opening 11 of the carrier body 16.
The cover plate 210 is made to protrude to both sides through the gap between the cover plate 210 and the cover plate 210.

The end mounting portions 23a, 2 of this bracket 22
A movable table 26 on which a welding head 25 is placed is fixed onto the welding head 3b via spacers 24a and 24b.

Since the spacers 24a and 24b are thicker than the cover plate 21 by a predetermined amount, a gap larger than the thickness of the cover plate 21 is formed between the movable base 26 and the bracket 22.

Therefore, the movable base 26 can be moved without interfering with the cover plate 21.

Note that the cover plate 21 may be made of a flexible material such as rubber, and in this way, the cover plate 21 can be attached to the upper surface of the guide rail 10 in close contact with the upper surface of the guide rail 10.

As described above, in the movable platform guide device of the present invention, the carrier body is housed inside the U-shaped guide rail, and the carrier body is guided by the inner surface of the guide rail, and the opening of the guide rail is Since it is covered with a cover plate, it is possible to prevent a solution layer etc. scattered during welding from adhering to the guide surface of the guide rail, and it is possible to smoothly guide the movable body over a long period of time.

In addition, in the movable platform guide device of the present invention, since the cover plate can be fixed, the structure is not only simpler compared to the case where the opening is covered with a roll-up type cover, but also more convenient than a bellows type cover. Since the cover plate is not bent, it also has the advantage of having a very long service life.

Note that the guide device of the present invention can be used not only for guiding a movable table on which a welding head is placed, but also for guiding a movable table on which other devices are placed.

[Brief explanation of the drawing]

The drawings show an embodiment of the present invention; FIG. 1 is a longitudinal sectional view of the guide device, FIG. 2 is a sectional view taken along the line ■-n in FIG. 1, and FIG. Sectional view along m-■ line, No. 4
The figure is a cross-sectional view taken along the line IV-IV in FIG. 1. 10... Guide rail, 10a-10c... Guide surface,
DESCRIPTION OF SYMBOLS 11... Opening part, 12... Feed screw, 15... Drive motor, 16-... Carrier main body, 17a-17d
, 18a to 18f, 19a, 19b・-o-ra, 21...cover plate, 22...bracket, 23a
, 23b... end attachment part, 26... movable base.

Claims (1)

[Scope of utility model registration request] A carrier body moved by a drive device is movably guided by a roller or the like inside a guide rail having a U-shaped cross section and an opening on one side. The openings are arranged so as to be covered and fixed to the guide rail at both ends in the moving direction, and further, end attachment parts are attached to the carrier main body passing between the cover plate and the guide rail and fixed to both ends of the cover plate. A movable base guide device, characterized in that a bracket is attached so as to protrude from the bracket, and the movable base is attached to an end attachment portion of the bracket such that a gap sufficient for the cover plate to pass through is created between the movable base and the bracket. .