JPS608169B2 - Support device for moving workpieces - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a support device for moving a workpiece, which supports a curved or flat workpiece so as to be movable in the front, back, left and right directions.

The section of the spherical tank for LNG is shown in Figure 2B or Figure 3B.
As shown in the figure, when cutting a petal-shaped bevel, it is necessary to place the cut piece on the stand of the cutting device, move it in the front, rear, left and right directions, position it, and then clamp it.

The present invention relates to a support device for moving a workpiece used for positioning, etc., which includes a hydraulic cylinder for lifting and lowering, a movable plate mounted on the upper part of the cylinder so as to be swingable, and a plurality of supports mounted on the movable plate. A support plate for a workpiece supported so as to be movable in the front, rear, right and left directions via steel balls, a first holding means for always holding the support plate at a central position, and a first holding means for always holding the movable plate at a horizontal position. 2.The purpose of this is to provide an improved system that can support workpieces movably in the front, back, left and right directions and up and down, even if the workpiece is heavy or has a curved plate shape. The object of the present invention is to provide a support device for moving a workpiece.

As described above, the support device for moving a workpiece according to the present invention includes a hydraulic cylinder for lifting and lowering, a movable plate swingably attached to the upper part of the cylinder, and a plurality of steel balls mounted on the movable plate. A support plate for a workpiece supported so as to be movable in the front, back, right and left directions, a first holding means for always holding the support plate in a central position, and a second holding means for always holding the movable plate in a horizontal position. When the workpiece is placed on the support plate, the movable plate and the support plate follow the shape of the workpiece and swing their heads.
When the workpiece moves in the front, back, left and right directions, the support plate is displaced to follow the movement of the workpiece.

Further, when the lifting fluid pressure cylinder is operated in the extending/contracting direction, each of the above-mentioned parts moves up and down. Therefore, even if the workpiece is heavy or has a curved plate shape, it can be supported so as to be movable in the front, back, right and left directions, and can be moved up and down. Next, a support device for moving a workpiece according to the present invention will be explained with reference to embodiments shown in FIGS. I to 14.

First, the outline of the positioning and clamping device will be explained. In Figs. 1 and 2, 1 is the cutting device, 2 is the table of the cutting device 1, 3 is the stand above it, 4 is the petal-shaped section (workpiece material), 9 is a large-diameter suction device installed in the center of the pedestal 3;
Reference numeral 5 indicates reference seats arranged at four locations around the reference seats, reference numeral 6 indicates a moving support device of the present invention arranged at four locations near the reference seats, and reference numeral 7a indicates the first reference seats disposed on the left and right sides of the large-diameter suction device 9. centering device,
7b is a second centering device disposed on the outside; 8 is a burr prevention device disposed at 24 locations around each of the above devices 5, 6, 7a, 7b, and 9; and 10 is a burr prevention device 8. If the petal-shaped sections 4 are as shown in FIG. 3B, they are arranged as shown in FIG. 3A. To explain the reference seat 5 in detail with reference to FIG. 4, 11 is a cylinder support mounted on the pedestal 3, 12 is a fluid pressure cylinder mounted on the cylinder support 11, and 13 is a cylinder support mounted on the cylinder support 12. a central shaft in which an elevating guide member 14 is inserted into the elevating guide member 13 so as to be able to rise and fall freely, and whose lower end is screwed to the piston rod 12a of the fluid pressure cylinder 2;
15 is a spherical seat holder screwed onto the concentric shaft 14, 16 is a spherical seat rested on the spherical seat holder 15, and 17 is the spherical seat 16.
are swingably mounted on the spherical seat support 15, 18a and 18b are limit switches for confirming the elevation of the spherical seat 16, and 19a and 19b are the respective switches 18a and 18b.
When the hydraulic cylinder 12 is operated in the expansion/contraction direction with the dog, the central shaft 14, the spherical seat support 15, and the spherical seat 16 move up and down. Next, the movable support device 6 of the present invention will be explained in detail with reference to FIGS. The central shaft screwed into the
21a is a spherical seat provided at the upper end of the concentric shaft 21, 22 is a movable plate swingably attached to the upper central spinal cord 21 via the spherical seat 21a, and 23 rotatably supports three steel balls 24. This is a steel ball holder mounted on the movable plate 22. Further, reference numeral 25 denotes a section support plate placed on each of the steel balls 24, 26 a support provided from the support plate 25, and 2
7 is a hook attached to three places on the support 26, 28 is a hook attached to three places on the movable plate 22, 29 is a spring suspended between the opposing hooks 27 and 28, and 30 is the lower end of the central shaft 21. The part above the movable plate 22 is always held in a horizontal position by the spring 30, and the support plate 25 is connected to the three steel balls 24 and the three springs. The petal-shaped section 4 is always held in the center position by the support plate 29 (see Fig. 5).
5, the part above the movable plate 22 is the same section 4.
When the head shakes to follow the shape of the section 4 and the section 4 moves in the front, back, left and right directions, the support plate 25 follows the movement of the section 4 and is displaced (see Figures 6 and 7). When the pressure cylinder 20 is operated in the direction of expansion and contraction, the portion above the central axis 21 moves up and down.Next, the first centering device 7a will be explained in detail with reference to FIGS. 8 and 9.
31 is a fluid pressure cylinder attached to the pedestal 3, 32 is a roller support attached to the piston rod 31a of the fluid pressure cylinder 31, 33 is a rotating shaft attached to the loaf support 32 via a bearing 34, 35 is a drive roller attached to the rotating shaft 33 via a key 36, 37 is a rotational drive device, 38 is a sprocket attached to its output shaft, 41 is a sprocket attached to the rotating shaft 33 via a key 40, and 39 is a sprocket attached to the rotating shaft 33 via a key 40. A chain is suspended between the sprockets 38 and 41, 42 is a guide rod of the roller support 32, and 43 is a support frame of the guide rod 42. When the rotational drive device 37 is started so that the upper part moves up and down, the rotation is transmitted to the drive roller 35, which rotates and the petal-shaped section 4 moves in the direction of the arrow A in FIG. It is designed to be moved in the A2 direction (back and forth direction). Note that the first centering device 7b is
The structure is the same except that the feeding direction is different from the directions of arrows B and B2 (horizontal direction) in FIG. 2, and detailed explanation will be omitted. Next, the flange prevention device 8 will be explained in detail with reference to FIG. 10. 44 is a body attached to the pedestal 3, 45 is a wedge shaft inserted into the body 44 so that it can be raised and lowered, and 46 is attached to the wedge shaft 45. 47 is a spherical seat placed on the spherical seat holder 46; 48 is a bolt for swingably attaching the spherical seat 47 to the spherical seat holder 46; 49 is a bolt that attaches the spherical seat 47 upwardly. a spring 50 biasing the body 44; a clamp shaft 5 inserted into the body 44 so that it can move forward and backward;
1 is a screw for moving the clamp shaft 50 forward and backward. When the screw 51 is turned to move the clamp shaft 50 backward, the portion above the wedge shaft 45 is raised by the spring 49, and the lower part is shaped like a petal. It is designed to follow the descent of the section 4. Next, the Oyo suction device 9 is
More specifically, 52 is a frame attached to the frame 3, 53 is a fluid pressure cylinder attached to the same frame 52, 54 is a central shaft attached to the piston rod 53a of the same fluid pressure cylinder 53, and 55 is the same. 56 is a rubber suction cup attached to the support shaft 55; 57 is a spring interposed between the suction cup 56 and the central shaft 54; 57 is a vacuum pump ( (not shown), the fluid pressure cylinder 53 is actuated in the expansion and contraction direction so that the portion above the central axis 64 moves up and down, and when the suction cup 56 comes into contact with the petal-shaped section 4. ,
The air inside the suction cup 56 is sucked, and the suction cup 56 sticks to the petal-shaped section 4. Further, FIG. 12 shows the Koyogi adsorption device 10. The same small-diameter adsorption device 1 Kawama No. 1
As is clear from FIG. 2, the suction cup 56 has the same structure as the large-diameter suction device 9, except that the suction cup 56 has a small diameter. Next, the operation of the positioning and clamping device will be explained with reference to FIG. First, raise the reference seat 5 and the moving support device 6 and place the workpiece 4 on top of the center part of the workpiece 4 using the score line drawn on the workpiece 4 as a guide. The workpiece 4 is supported movably in the front, back, left and right directions by the moving support device 6. At this time, the movable plate 22, the steel ball holder 23, and the support plate 25 swing so as to follow the shape of the petal-shaped section 4 with the spherical seat 21a as a fulcrum. Then the first
While raising the second centering devices 7a, 7b, the drive rollers 35 of each of the centering devices 7a, 7b are selectively driven to move the workpiece 4 in the front, back, left and right directions to position it in the horizontal direction. . At this time, the support plate 25 is displaced on the steel ball 24 following the movement of the petal-shaped section 4. Next, the centering devices 7a and 7b are lowered and the large flea suction device 9 is raised to suction and hold the center part of the workpiece 4 from below, and then the large diameter suction device 9 that is being suctioned and the moving The supporting device 6 is lowered to press the periphery of the central part of the workpiece against the lowered reference seat 5 to position it in the height direction, and then the small-diameter suction device 10 is raised to press the outer periphery of the workpiece 4 from below. While holding the workpiece by suction, the burr prevention device 8 is raised to support the outer periphery of the workpiece from below, and then the small-diameter suction device 10 that is being suctioned is lowered to press the outer periphery of the workpiece 4 against the burr prevention device 8. Complete the clamp. Although the present invention has been described above with reference to embodiments, it goes without saying that the present invention is not limited to such embodiments, and that various design changes can be made without departing from the spirit of the present invention. .

For example, the number and position of each of the devices 5 to 10 can be changed depending on the size, shape, etc. of the workpiece, and are not limited to the above embodiments. It is also possible to position and clamp large plates, etc.

[Brief explanation of drawings]

FIG. 1 is a front view of the workpiece positioning and clamping device, FIG. 2A is a plan view thereof, FIG. 2B is a perspective view of the workpiece, and FIG. 3A is a plan view of another embodiment. FIG. 3B is a perspective view showing another example of the workpiece, FIG. 4 is a longitudinal side view of the reference seat,
FIG. 5 is a longitudinal side view showing an embodiment of the moving support device according to the present invention, FIG. 6 is a longitudinal side view showing its operation, and FIG.
The figure is a plan view showing its operation, FIG. 8 is a vertical cross-sectional side view of the first and second centering devices, FIG. Vertical side view of the burr stopper,
FIG. 11 is a longitudinal sectional side view of the large-diameter suction device, FIG. 12 is a longitudinal sectional side view of the small-diameter suction device, and FIG. 13 is an explanatory diagram of the operation of the standard layering and clamping device. 3... Frame, 4... Workpiece, 5...
...Reference seat, 6...Movement support device, 7a
......first centering device, 7b...second
Centering device, 35... Drive roller thereof, 8...
...Pile prevention device, 9...Large diameter suction device, 1
0... Koyogi adsorption device, 20... Fluid pressure cylinder, 22... Movable plate, 24... Steel ball, 2
6... Support plate, 26-29... First holding means, 30... Second holding means. Figure 2 (A) Box 2 Figure [B1 Figure 3'A) Figure 3'B) Figure 4 Figure 5 Figure 6 Groove diagram Figure 8 Figure 9 Figure 10 Figure 1 Figure 12 Figure 13

Claims (1)

[Claims] 1. In a support device for moving a workpiece that supports a curved or flat workpiece so that it can be moved in the front, back, left, and right directions,
A hydraulic cylinder for lifting and lowering, a movable plate attached to the upper part of the cylinder so as to be swingable, and a support plate for a workpiece supported on the movable plate so as to be movable in the front, rear, right and left directions via a plurality of steel balls. ,
a first holding means for always holding the support plate in a central position;
A support device for moving a workpiece, comprising a second holding means for always holding the movable plate in a horizontal position.