JPS6237624Y2 - - Google Patents

Description

[Detailed description of the invention] [Field of industrial application] The present invention relates to a device that is capable of holding a workpiece and is capable of transporting the workpiece, which is ideal for use in cleaning and processing automobile parts, for example. be.

[Prior Art]

Generally, when cleaning or processing a workpiece such as an automobile part, the workpiece is held by a predetermined workpiece holding device, the workpiece is cleaned, processed, etc. in this state, and then the workpiece is transported out. I try to do that. Conventionally, when holding and carrying out such a work, it has been common to provide a dedicated work holding device and a dedicated work transport device, respectively.

[Purpose of invention]

It is an object of the present invention to provide a workpiece holding and unloading device which is capable of holding and unloading a workpiece in such a conventional situation, and which has a very simple structure.

[Structure of the idea]

The present invention provides a workpiece holding and unloading device that includes a vertically moving member that is moved up and down by a drive device, a first holding claw that swings in conjunction with the vertical movement of this member, and a holding chute provided on this. The part is adapted to move between the workpiece holding position and the chute position where the workpiece can be taken out in accordance with the above-mentioned swinging movement, and also slides into contact with a cam provided on the above-mentioned vertically moving member, so that the part moves in accordance with the above-mentioned vertically moving member. A second holding pawl is provided that swings in conjunction with the second holding claw, and the holding/pushing part provided thereon moves between a workpiece holding position and a pushing position for pushing out the workpiece in accordance with the swinging. , As a result, as the vertically moving member moves up and down,
When holding a workpiece, the workpiece is held by both holding claws, and when carrying out a workpiece, the first holding claw swings to the chute position and the second holding claw pushes out the workpiece.

〔Example〕

Hereinafter, embodiments of the present invention will be described with reference to the drawings.

Figures 1 to 3 show an embodiment of the present invention. In the figures, 1 is a base fixed to the floor, etc., and a mounting bracket 3 for a drive device 2 is bolted to the bottom of the base. Fixed. A cylindrical air supply section 3a for supplying compressed air to the drive cylinder 6 of the drive device 2 is formed at the lower end of the mounting bracket 3.
an air supply passage 3b, which is annularly recessed on the inner surface of a;
Air supply pipes 4a and 4b are connected to 3c. Note that 5 is an O-ring for preventing leakage of compressed air.

Further, an air introduction part 6a formed at the lower end of the drive cylinder 6 is rotatably inserted into the air supply part 3a, and a piston sliding hole is provided above the air introduction part 6a of the drive cylinder 6. 6b are formed, and the upper and lower ends of the sliding hole 6b are connected to the air supply passages 3b, 6b by air introduction passages 6c, 6d and the air introduction pipe 7 formed in the air introduction part 6b.
It is connected to 3c.

A piston 8 is slidably inserted into the piston sliding hole 6b.
A piston rod 9, which is a vertically moving member, is fixed to the piston rod 9, which is a vertically movable member.

Further, a support stand 10 is fixed to the upper surface of the base 1, and a cylindrical portion 12a of a rotating member 12 is rotatably inserted into a cylindrical bearing 11 mounted at the center of the support stand 10. There is. The lower end of the cylindrical portion 12a is screwed onto the upper end of the drive cylinder 6, and a pinion 13 is fastened to the lower end by a lock nut 14. Further, a rotating cylinder 15 is attached to the lower surface of the support base 10, and a rack 16 attached to the piston rod of the rotating cylinder 15 is attached to the pinion 1.
It meshes with 3.

Further, a mounting flange portion 17a of a cylindrical support bracket 17 is bolted to a flange portion 12b integrally formed at the upper end of the pivoting member 12, and a lid member attached to the upper end of the support bracket 17 is secured. A cylindrical guide member 19 is attached to the center of the guide member 18 . and the guide member 19
, the piston rod 9 is connected to the pivot member 12.
It is inserted through a guide hole 12c formed in the guide hole 12c so as to be vertically movable.

A roughly semicircular mounting table 20 is attached to the upper end of the piston rod 9.
A support recess 21a recessed in the lower part of the first holding claw 21 is installed in the support part 20a that projects horizontally, and is rotatably supported by a support pin 20b. The first holding claw 21 has a notch groove 21b serving as a workpiece holding portion at its upper end, and has a roughly triangular shape with a flat chute surface 21c formed on its right side in FIG. The chute surface 21c serves as a holding chute portion 21d for holding and transporting the workpiece. The lower end of the first holding claw is in contact with the upper surface of a cam dog 22 attached to the cover member 18 of the support bracket 7.

Further, a lower portion of the second holding claw 23 is rotatably supported by a support pin 24 on a support portion 18a that projects horizontally from the lid member 18. The second holding pawl 23 has a holding extrusion part 23e consisting of a workpiece extrusion part 23a for pushing out the workpiece and a cutout groove 23b for holding the workpiece at the upper end, and a holding extrusion part 23e at the lower end. It is a rod-shaped body in which a weight part 23c and a sliding part 23d are formed for rotationally biasing the body to the position shown by the solid line in FIG.

Further, a cam member 25 is installed inside the support bracket 17 of the piston rod 9.
It is fixed by a set bolt 26. The cam member 25 is integrally formed with a cam surface 25a consisting of an inclined surface that protrudes outward toward the bottom, and the sliding portion 23d of the second holding claw 23 is formed on the cam surface 25a.
are in sliding contact.

Note that 27 is a workpiece discharging chute that is disposed on the side of the first holding claw 21 and for discharging the workpiece.

Next, the operation will be explained.

The apparatus of this embodiment holds a workpiece, rotates the workpiece, cleans the workpiece with a cleaning device (not shown), and then delivers the workpiece to the chute 2.
7 to be carried out.

First, in order to hold the work, the drive cylinder 6
is contracted to lower the piston rod 9. Then, the first holding claw 21, with its lower end surface supported by the cam dog 22, has its support recess 21a pulled by the mounting table 20 and swings to the position shown by the solid line in FIG. 1, and its notched groove 21b moves to the workpiece holding position. Further, the second holding claw 23 is biased by the weight 23c, so that the sliding portion 23d of the second holding claw 23 is pressed against the cam member 23.
This also swings to the position shown by the solid line in the figure, and its notch groove 23b moves to the workpiece holding position. And in this state, the worker
The notch grooves 21 of the first and second holding claws 21 and 23
b, 23b.

Next, in order to clean the workpiece 30, the turning cylinder 15 is first expanded and contracted. Then, the pinion 13 meshing with the rack 16 of the cylinder 15 moves the rotating member 12 and the support bracket 1.
7. The lid member 18 rotates forward and backward, and the second holding claw 23 rotates the workpiece 30 forward and backward, and the first holding claw 21 also rotates as the workpiece 30 rotates. . In this state, the workpiece 30 is cleaned by the cleaning device.

Next, in order to carry out the cleaned work 30 onto the work discharge chute 27, the drive cylinder 6 is extended and the piston rod 9 is raised. Then, the lower end of the first holding claw 21 is pulled up by the mounting table 20 and swings to the position shown by the dashed line in FIG.
moves to the chute position and is in an inclined state substantially flush with the workpiece discharging chute 27, and the sliding portion 23d of the second holding claw 22 is pushed by the cam surface 25a of the cam member 25 to a point shown in the figure. It swings to the position shown by the chain line, and as a result, the extrusion portion 23a moves to the extrusion position and extrudes the workpiece 30 to the left in the figure. As a result, the workpiece 30 is placed on the mounting table 20.
The workpiece is pushed out from above onto the chute surface 21c of the first holding claw 21, and further slid on the workpiece delivery chute 27 and carried out.

In addition, if the drive cylinder 6 is contracted after carrying out the work 30, the first and second holding claws 21, 2
3 returns to the state shown by the solid line in FIG. 1, and the next workpiece is held in this state.

In this way, in the device of this embodiment, when holding the workpiece, the first and second holding claws 21 and 23 hold the workpiece.
0, and when carrying out the workpiece, the first holding claw 21 serves as a chute and the second holding claw 23 serves as a pusher, so that the workpiece 30 can be held and carried out with a very simple structure. can be done.

Further, since the workpiece 30 is cleaned while being rotated forward and backward, the workpiece 30 can be cleaned easily and reliably.

In the above embodiment, the case where the support recess 21a of the first holding claw 21 is connected to the mounting base 20 of the piston rod 9 has been explained, but in the present invention, the first holding claw 21 is
It is not always necessary to connect the holding claw 21 to the piston rod 9; for example, the first holding claw 21 is rotatably attached to the support bracket 17, etc., and the first holding claw 21 is connected to the piston rod 9 by a cam formed on the mounting base 20, etc. The pawl 21 may be made to swing; in short, the first holding pawl 21 may be configured to swing in conjunction with the vertical movement of the piston rod 9.

Furthermore, in the above embodiments, the case where the drive device is constituted by a cylinder has been explained, but it goes without saying that this drive device does not necessarily have to be a cylinder. Although described above, this turning device is not necessarily necessary in the present invention.

[Effect of idea]

As described above, according to the workpiece holding and unloading device according to the present invention, the first holding pawl that swings in conjunction with the vertical movement of the vertically movable member and the cam of the vertically movable member that slides in contact with the cam of the vertically movable member, The workpiece is held by the first and second holding claws when holding the workpiece, and the first holding claw swings in conjunction with the movement of the workpiece.
Since the holding pawl guides the workpiece and the second holding pawl pushes out the workpiece, it is possible to hold the workpiece and carry it out with a very simple configuration.

[Brief explanation of the drawing]

FIG. 1 is a sectional front view of a workpiece holding and unloading device according to an embodiment of the present invention, FIG. 2 is a plan view thereof, and FIG. 3 is a side view of a second holding claw portion thereof. 6... Drive device, 9... Vertical movement member (piston rod), 21... First holding claw, 21d... Holding chute portion, 23... Second holding claw, 23e... Holding push-out portion, 25... Cam .

Claims (1)

[Scope of utility model registration request] A vertically movable member that is moved up and down by a drive device is provided, a first holding pawl that swings in conjunction with the vertical movement of the vertically movable member is provided, and a holding chute portion formed on the first holding pawl is configured as described above. As it oscillates, it moves between the workpiece holding position where the workpiece is held and the chute position where the workpiece can be carried out.
The vertically movable member is provided with a cam, and a second holding pawl that slides on the cam and swings in conjunction with the vertical movement of the vertically movable member is provided, and a holding extrusion portion formed on the second holding pawl. A workpiece holding and unloading device, characterized in that the workpiece is moved between a workpiece holding position and a pushing position for pushing out the workpiece in accordance with the swinging movement.