JPS6212452Y2 - - Google Patents

Description

[Detailed explanation of the idea] The present invention relates to a work transfer device.

In general, a workpiece transfer device used in parallel with a painting robot, etc. consists of a frame, a workpiece mounting table reciprocably provided on the frame, and a drive mechanism that reciprocates the workpiece mounting table. After a workpiece is placed on a workpiece mounting table disposed at one end of the frame, the workpiece is transferred to the other end of the frame by a drive mechanism.

By the way, when the workpiece transfer device having the above configuration is used as a transfer device to a painting robot, for example, it is necessary to arrange the workpiece placed on the mounting table so as to face the spray nozzle of the painting robot during painting. be.

Conventionally, in order to meet these demands and improve work efficiency, a system has been known in which work transfer devices having the above-mentioned configuration are arranged in a V-shape on both sides of a painting robot placed in the center. It is being

The work transfer device with the above configuration has a structure in which the work mounting table simply moves back and forth, and the transfer device itself is arranged in a V-shape in order to make the workpiece face the spray nozzle of the robot during painting. but,
With this arrangement, the dedicated space for the workpiece transfer device becomes large, and the other ends of the workpiece transfer device, where the workpieces are exchanged, are relatively far apart, making it difficult for workers to exchange the workpieces. There are drawbacks such as the worker having to travel a large distance when working alone.

The present invention has been developed in view of the above circumstances, and allows the workpiece mounting table to protrude outward from the side edge of the other end of the transfer device frame. As a result, even when two sets of work transfer devices are installed for one painting robot, both transfer devices can be installed parallel to each other. To provide a workpiece transfer device that can reduce the exclusive space of the transfer device itself, and that allows a worker to move back and forth between workpiece exchange points of both transfer devices by simply moving a short distance. The purpose is to

An embodiment of the present invention will be described below with reference to FIGS. 1 to 3.

FIG. 1 is a diagram showing a schematic configuration when a work transfer device according to the present invention is installed in parallel with a painting robot. A work transfer device B is arranged on both sides of the workpiece in parallel thereto. Rails 2 are attached to both sides inside the frame 1 of the work transfer device B, and a moving cart 3 is placed on the rails 2. Also, frame 1
As shown in FIG. 2, an air cylinder 4 is disposed at the inner lower end of the air cylinder 4, and one ends of wires 6, 6 are connected to both sides of the internal piston 5 of the air cylinder 4, respectively. These wires 6,6
is an idler 7 attached to the end of the frame 1,
7, and the other end is connected to the front and rear side walls of the moving trolley 3, respectively. and,
By reciprocating the piston 5 within the air cylinder 4, the movable trolley 3 moves the wires 6, 6
It is designed to reciprocate on the rail 2 via.

Further, a vertical shaft 8 is rotatably attached within the movable trolley 3. A disk 9 is attached concentrically to the vertical shaft 8 at the center in the longitudinal direction of the vertical shaft 8, and one end of an arm 10 horizontally arranged at the upper protruding end of the vertical shaft 8. is installed. Then, as shown in FIG. 3, the cylinder 12 connected to the pin 11 protruding downward from the disk 9 is driven to rotate the disk 9, and as a result, the arm 10 is rotated around one end thereof. It is designed to rotate horizontally.

Further, a workpiece mounting table 13 is provided at the other end of the arm 10.
is mounted rotatably in the horizontal direction via a shaft 14. A sprocket 15 is attached to the lower end of the shaft 14, and this sprocket 15 is connected to a sprocket 17 via a chain 16. Incidentally, these sprockets 15, 17 and chain 16 are each housed within the arm 10. The sprocket 17 is attached to the upper end of a shaft 18 that passes over the central axis of the vertical shaft 8, and the lower end of the shaft 18 is connected to the output shaft of a motor 19. When the motor 19 is driven, the shaft 18 is rotated, and this rotation of the shaft 18 also causes the sprocket 17 and the chain 16 to rotate.
and is transmitted to the shaft 14 via the sprocket 15, thereby causing the workpiece mounting table 13 to rotate in the horizontal direction.

To briefly explain the painting robot A, brackets 22, 22 are mounted on a pedestal 21 so as to be rotatable in the horizontal direction, and an arm 24 is attached to the upper end of the brackets 22, 22 via a pin 23. is mounted so that it can rotate freely in the vertical direction. A mounting base 25 is attached to a pin 26 at the tip of the arm 24.
A mounting base 27 is attached to the mounting base 25 so as to be rotatable in the horizontal direction via a pin 28.
A coating nozzle 29 is attached to 7. The nozzle 29 is connected to a coating liquid supply section (both not shown) via a connecting pipe. In addition, arm 2
4 and the horizontal and vertical rotations of the nozzle 29 are adjusted by remote control.

Next, a case in which a workpiece is painted using the workpiece transfer device described above will be described. First, both moving carts 3 are moved to the right end in FIG. 1, and the workpiece mounting table 13 is positioned on the right side. Next, after placing the workpiece on one of the two workpiece mounting tables 13, for example, the upper workpiece mounting table 13 in FIG.
The air cylinder 4 is driven to move the upper mobile cart 3 in FIG. 1 to the left end. Next, by driving the cylinder 12, the upper arm 10 in FIG.
Then, the workpiece mounting table 13 is rotated by a predetermined amount clockwise about one end of the arm 10, thereby causing the workpiece to face the coating nozzle 29. Next, while driving the motor 19 to rotate the workpiece placed on the mounting table 13, the painting robot A is operated to paint the workpiece.

At this time, in parallel with the above operation, after placing the work on the mounting table 13 on the lower side of the figure, the above-mentioned series of operations is also performed in the same transfer device B, and the first
As shown by the one-dot chain line in the figure, the movable cart 3 is moved to the left end, and the workpiece mounting table 13 is left on standby with the workpiece mounting table 13 facing the right side. When the painting of the upper workpiece in Figure 1 is completed, the motor 1
9, the workpiece mounting table 13 on the upper side in the figure is rotated a predetermined amount counterclockwise and directed to the right, and the workpiece mounting table 13 on the lower side in FIG. The workpiece placed on the mounting table 9 is moved to face the coating nozzle 29. Thereafter, this workpiece is also coated in the same manner as described above. Also, while painting the work on the lower transfer device B in the figure, the moving cart 3 on the upper side in the figure is moved to the right end to exchange the work, and then the moving cart 3 is moved to the left again. Move it to the edge and wait. Thereafter, both transfer devices B perform similar operations, and the workpieces transferred by these transfer devices B are automatically coated.

That is, according to the workpiece transfer device B having the above configuration, when the workpiece is transferred along the frame body 1, the workpiece is passed inside both side edges of the frame body 1 so as not to interfere with the painting robot A, and then the workpiece is transferred along the frame body 1. Since the workpiece is configured to protrude outward from the side edge of the frame 1 after being transferred to the other end, the transfer device B itself is placed parallel to the painting robot A as shown in FIG. Despite the fact that the workpiece is placed so that painting robot A
It can be placed at a position facing the nozzle 29 of.

FIG. 4 shows another embodiment of the present invention, in which the same parts as in the embodiment shown in FIGS. 1 to 3 are given the same reference numerals. In this embodiment, the arm 31 is extended to an appropriate length, thereby setting the final transfer positions of the workpieces by the two sets of transfer devices B to the same location. In this way, by performing one teaching on the coating robot A, the workpieces transferred by both transfer devices B can be coated.

As explained above, according to the work transfer device according to the present invention, an arm that is horizontally rotated around one end by a drive mechanism is attached to a movable cart that is reciprocatably provided on a frame body. Since the workpiece mounting table is attached to the other end of the arm, the workpiece can be projected outward from the side edge of the other end of the transfer device frame, and therefore the transfer device itself can be used as a painting robot, etc. The workpiece can be opposed to the spray nozzle of the painting robot while parallel to the painting robot.As a result, when two sets of workpiece transfer devices are installed for one painting robot, However, the dedicated space of the transfer device itself can be reduced, and the worker can go back and forth between the workpiece exchange points of both transfer devices by moving a short distance, resulting in improved work efficiency. You can improve your performance. In addition,
While the workpiece placed on one transfer device is being painted, the workpiece placed on the other transfer device is transferred to the other end of the transfer device while holding down the rotation of the arm. As a result, the workpiece can be transferred to a position facing the spray nozzle of the painting robot in a short time, and the painting time can be shortened as a whole.

[Brief explanation of the drawing]

Fig. 1 is a diagram showing the overall arrangement and their schematic configuration when an embodiment of the present invention is installed in parallel with a painting robot, Fig. 2 is a sectional view taken along the - line in Fig. 1, and Fig. 3 is a sectional view taken along the line - in FIG. 2, and FIG. 4 is a diagram showing another embodiment of the present invention. A... Painting robot, B... Work transfer device, 1... Frame, 3... Moving trolley, 4... Air cylinder, 5... Piston, 6... Wire, 9
...Disc, 12...Cylinder, 13...Work mounting table, 15, 17...Sprocket, 16...Chain, 19...Motor, 29...Nozzle.

Claims (1)

[Scope of utility model registration request] a frame body, a movable dolly provided on the frame body so as to be reciprocally movable, a first drive mechanism for reciprocating the movable dolly, and an arm whose one end is attached to the movable dolly so that it can freely rotate in a horizontal direction. A workpiece transfer device comprising: a second drive mechanism that rotates the arm around one end thereof; and a workpiece mounting table attached to the other end of the arm.