JPH0547320B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a slide guide for a press machine that is equipped with a vertically movable slide and that enables smooth guidance of the slide.

[Prior Art] Conventionally, in a press machine equipped with a slide that can move up and down, the slide is guided by an adjustment rail supported by a gib to move up and down.

[Problems to be Solved by the Invention] The adjustment rail having such a configuration includes a plurality of support bolts that protrude from the gib and have threaded portions screwed into the backs of the rails, and a plurality of support bolts that protrude from the gib between the support bolts. Bolt support is provided by a plurality of pressing bolts whose tips are in contact with the back of the rail.

This bolt support does not provide continuous support rigidity, so when a thrust load is applied when the slide goes up and down, the rail deforms between the unsupported bolts, causing waving on the adjustment rail. This results in unstable vertical movement.

If the slide moved up and down unstably, there was a problem that it would not be possible to handle pressed products that require precision.

SUMMARY OF THE INVENTION Therefore, an object of the present invention is to provide a slide guide for a press machine that can stably guide the slide by a simple device.

[Means for Solving the Invention] In order to achieve the above object, the present invention includes a guide plate that guides the slide so as to be freely raised and lowered, and a guide plate that is attached integrally with the plate and is movably attached to the frame. a guide plate holder mounted on the frame, a guide body having a desired taper, and an adjustment plate that is slidably assembled along the guide body and positions the guide plate so as to be movable forward and backward with respect to the slide. It is structured as follows. In a preferred embodiment, the guide plate is divided into upper and lower parts. Further, the guide body is eccentric from the center line of the guide main body.

[Operation] In this configuration, by sliding the adjustment plate along the taper of the guide body, the guide plate is positioned in a state where it moves forward or backward relative to the slide.

[Embodiment] Hereinafter, an embodiment of the present invention will be described in detail with reference to the drawings of FIGS. 1 to 6.

In the figure, reference numeral 1 indicates a slide that is supported by a pitman 3 and is movable up and down, and a roller 7 that rolls along a guide plate 5 is attached to the slide 1.

One set of rollers 7 is arranged at each of the upper and lower corners of the slide 3, and the roller axis of one roller 7 at the corner faces forward and backward (in the vertical direction in Figure 1). The axes are orthogonal, facing left and right (left and right directions in the figure).

The guide plate 5 is divided into upper and lower parts, and each of the upper and lower guide plates 5, 5 is attached to the guide plate holder 13 by a mounting bolt 9 and a key 11, and is in curved surface contact with the guide plate holder 13. It's summery.

The guide plate holder 13 is fixed to the frame 17 by a plurality of fixing bolts 15, and by loosening the fixing bolts 15, the guide plate holder 13 can be moved (arrow A) within the range of the elongated hole 19 formed in the holder 13. It's summery.

On the other hand, the housing 2 fixed to the frame 17
1 has a guide main body part 23 assembled therein. The guide body 25 of the guide body 23 is formed into a four-sided pyramid tapered at an angle of θ, and as shown in FIG. 6, it is eccentric by α from the center line W of the guide body 23 and rotated by 180 degrees (dashed line in the figure). By doing so, twice the amount of eccentricity l (the amount of movement) can be secured.

The guide body 25 faces approximately the center of the circular opening hole 27 bored in the guide plate holder 13,
A pair of adjustment plates 29 and 30 facing each other are fitted between the guide body 25 and the opening hole 27. One of the adjustment plates 29 and 30 is attached to the frame 17 via the housing 21, and the other is attached directly to the frame 17. Adjustment plate 2
9 and 30 are fixed by a pressing bolt 31 and tightening bolts 33 and 33 arranged above and below the bolt 31, and the tip of the pressing bolt 31 is attached to the frame 17.
is in contact with. Further, the tip of the tightening bolt 33 is screwed into the frame 17.

Note that 35 indicates a bolster and 37 indicates a bed.

In the slide guide of the press machine configured in this manner, the slide 1 is guided by the guide plate 5 and moves up and down. During this vertical movement, the thrust load applied to the slide 1 is received by the guide plate 5 which is continuously supported integrally with the guide plate holder 13, so that the slide 1 moves vertically smoothly without deflecting in the front-rear and left-right directions.

Next, the procedure for adjusting the guide plate 5 will be described. After loosening the fixing bolt 15, the pressing bolt 31 and the tightening bolt 33 are loosened, and the tightening bolt 33 of the adjustment plate 29 facing inside is tightened. In response to tightening of the bolt 33, the adjustment plate 29 moves forward (arrow RO) along the taper β as shown by the chain line in FIG. At this time, the adjustment plate 30 facing the outside moves backward along the taper β (arrow C), and the guide plate holder 13 moves backward along the taper β.
Move forward (arrow d) towards the side. Adjustment of the guide plate 5 is completed by tightening each screw 13, 31 from this state. In addition, the adjustment plate 30 facing outside when each screw 33, 31 is loosened
By tightening the bolt 33 with the tightening bolt 33 in the same manner as described above, it is possible to adjust the roller 7 to move backward relative to the roller 7 in the opposite manner to the above. Thereby, the verticality of the guide plate 5 is adjusted, and the parallelism between the surface of the bolster 37 and the lower surface of the slide 3 can be obtained. Note that by rotating the guide main body 23 by 180 degrees and reassembling it, a large amount of adjustment can be ensured.

Moreover, although the roller 7 is provided on the slide 3 side in this embodiment, it can also be applied on the guide plate 5 side.

[Effects of the Invention] As explained above, according to the slide guide of the present invention, the support rigidity of the guide plate can be increased by a simple combination of the adjustment plate and the guide body, and the thrust load can be improved. In contrast, stable vertical movement of the slide can be achieved. Furthermore, since the guide plate is divided into upper and lower parts, it is only necessary to adjust the optimal part, improving work efficiency, and by rotating the guide pair 180 degrees, a large amount of adjustment can be ensured.

[Brief explanation of the drawing]

FIG. 1 is a partially cutaway plan view of the slide guide of the present invention, FIG. 2 is a front view, FIG. 3 is a side view, and FIG.
The figure is an overall view, FIG. 5 is an explanatory diagram of the operation, and FIG. 6 is an explanatory diagram of the guide body. Explanation of main drawing symbols, 3...slides, 5...
... Guide plate, 13 ... Guide plate holder, 17 ... Frame, 25 ... Guide body, 29,
30...adjustment plate.

Claims (1)

[Scope of Claims] 1. A guide plate that guides the slide in a vertically movable manner, a guide plate holder that is integrally attached to the plate and movably attached to the frame, and that is attached to the frame and has a desired taper. A slide guide for a press machine, comprising a guide body and an adjustment plate that is slidably assembled along the guide body and positions the guide plate so as to move forward and backward with respect to the slide. 2. The slide guide for a press machine according to claim 1, wherein the guide plate is divided into upper and lower parts. 3. The slide guide for a press machine according to claim 1, wherein the guide body is eccentric from the center line of the guide main body.