JPS6117798Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a surface plate having a function of reversing an article placed on its upper surface.

To drill holes on both sides of a plate, drill holes on one side, then turn the plate over and drill holes on the other side. Conventionally, the plate was turned over using a crane sling. This increases the number of processing steps and poses safety problems.

In view of the above-mentioned conventional situation, the present invention aims to provide a device that can automatically and easily turn over articles on a surface plate.

Embodiments of the present invention will be described below based on the drawings. Figure 1 is a plan view, Figure 2 is A- of Figure 1.
A sectional view, Fig. 3 is a BB-B arrow view in Fig. 1, Fig. 4
The figure is a perspective view, and 1 and 2 in the figure are surface plates, which are positioned relative to each other. 3 and 4
is a fork, which is rotatably supported by a hinge structure on each of the surface plates 1 and 2. The upper surfaces of the forks 3 and 4 are flush with the upper surfaces of the surface plates 1 and 2 when they are stored in the surface plates 1 and 2. Also,
Stoppers 7 and 8 are provided in the vicinity of the hinge structure on the upper surface of the forks 3 and 4 so as to be removable and position adjustable, and are used for positioning the article 13. Hydraulic cylinders 9 and 10 rotate the forks 3 and 4. 11 and 12 are links for amplifying the strokes of the hydraulic cylinders 9 and 10. Hydraulic cylinders 9 and 10 are connected at their rear ends to surface plates 1 and 2 and at their piston rod ends to links 11 and 12, respectively, by pin support structures. Link 11,
12 has one end supported by a pin on the surface plates 1 and 2, and the other end is incorporated into a roller guide groove 15 provided on the lower surface of the forks 3 and 4 via a roller 14.

Reference numerals 5 and 6 designate turntables which incorporate a known turning device and hydraulic jack (not shown), and are capable of raising the article 13 and rotating the article 13 by an arbitrary angle while the article 13 remains elevated. In addition,
Depending on the thickness of the article 13, the distance between the surface plates 1 and 2 may be adjusted as appropriate.

The rotation of the forks 3, 4 and the raising and lowering of the turntables 5, 6 are controlled by a hydraulic unit (not shown).

The function of reversing the article 13 on the surface plate will be explained based on FIG. 5. In addition, article 13
is placed on surface plate 1 in advance, and surface plate 2
There is nothing on the top surface and the fork 4 is in position, ie fully lowered. Further, the turntables 5 and 6 are naturally in a lowered state. First, the fork 4 is raised from position to position. The fork 3 is then raised together with the article 13 from position to position. Therefore, the article 13 is held in a sandwich state between the forks 3 and 4. At this time, stopper 8
Care has been taken to shift the positions of the stopper 7 and the stopper 7 so that they do not overlap each other when in the sandwich state. After a slight time lag at the position, the fork 3 and the fork 4 operate synchronously while keeping the article 13 in the sandwich state, and reach the position. The range between these positions is the range in which the article 13 is transferred from the fork 3 to the fork 4. That is, the position is tilted approximately 5 degrees toward the surface plate 2 from the vertical position, and the article 13 is completely placed on the fork 4 side. Fork 3 stops at position and fork 4 picks up article 13
The robot continues to descend, reaching the position (lowering limit). The fork 3 stops at the position, returns in the direction of the position after a slight time lag, and reaches the position (lowering limit).

These series of operations are sequence-controlled by a control device (not shown), but independent operation of the forks 3 and 4 is also possible. Incidentally, the raising and lowering of the turntables 5 and 6 is an independent operation and is not incorporated into the above-mentioned reversing operation.

Although not shown in the drawings, as a safety device, when there is an article 13 on both surface plates 1 and 2, the surface plates 1 and 2 are installed so as not to malfunction and damage the device and the article.
A limit switch may be incorporated in the upper surface of the article 13, so that when both limit switches are actuated by the weight of the article 13, the series of operations described above will not be performed.

As is clear from the above, according to the present invention, it is possible to easily turn over objects on a surface plate without using a crane, etc., making the work safe and ensuring quality without damaging the objects. be done.

[Brief explanation of the drawing]

The drawings show an embodiment according to the present invention, and FIG. 1 is a plan view, FIG. 2 is a sectional view taken along line A-A in FIG. 1, FIG. 3 is a view taken along line B-B in FIG. The perspective view and FIG. 5 are schematic diagrams for explaining the operation. 1, 2... Surface plate, 3, 4... Fork, 5, 6
... Turntable, 7, 8 ... Stoppa, 9,
10... Hydraulic cylinder, 11, 12... Link.

Claims (1)

[Scope of utility model registration request] Two reversing forks, which can freely rotate with one end as a pivot, are disposed facing each other on the surface plate, and when the forks are stored in the surface plate, their mounting surface is the same as the top surface of the surface plate. Place it so that it is a surface,
A surface plate characterized in that an article placed on the surface plate can be reversed.