JPS5826783Y2 - Workpiece transfer device - Google Patents

Description

[Detailed Description of the Invention] This invention relates to a workpiece transfer device, and more specifically, to a transfer device for transferring a workpiece from a receiving location to a delivery location, including movement in vertical and horizontal directions.

In conventional equipment, dedicated motors for vertical movement and horizontal movement are provided depending on the type of workpiece transfer, and the workpiece is transferred based on switching the operation of each motor, which makes the structure and transfer control complicated. There was a problem in that it was difficult to speed up and smooth the operation.

In order to solve the problems of the conventional device, the present invention is a transfer device that can sequentially perform vertical movement and horizontal movement of a workpiece based on the switching drive of a single motor.
The purpose is to miniaturize the entire device and rationalize the work transfer operation.

The present invention will be described in detail below based on examples.

In this example, a model example will be described in which a workpiece is transferred between lines for receiving and delivering the workpiece.

That is, the moving mechanism 3 is set above between the first and second conveyors 1 and 2.

This mechanism 3 has two rows of chains 9 suspended between each chain wheel 6 of a main shaft 5 supported by a bearing 4 on a machine frame F and a chain wheel 8 supported by each bearing 7. A transmission chain 14 is hung between a chain wheel 12 of a transmission 11 driven by a forward/reverse motor 10 installed in the machine frame F and a chain wheel 13 at the end of the main shaft 5, and the transmission chain 14 is reciprocated at a predetermined speed. It is possible.

A guide body 15 is installed above one side of the above-mentioned moving mechanism 3.

This guide body 15 is constructed by arranging two rows of cam rails 17 above and below a support plate 16, and has horizontal grooves 18 at both ends.
The first and second arcuate grooves 19 and 20 are formed in series.

The horizontal groove 18 is made to have the same length as the distance between the centers of the main and slave wheels 6 and 8 of the moving mechanism 3, and both the arcuate grooves 19 and 20 are connected to the chain 9 at the connection point (i.e. The first side is located above the first conveyor 1 and the second side is located above the second conveyor 2. .

A workpiece hanger 27 is supported by a balance support 21 installed between the moving mechanism 3 and the guide body 15.

Regarding the balance support 21, a pair of arms 23 are pinned to a block 22 arranged on each chain 9 and connected to each other by a rod 24, and the guide rollers 26 of the branch piece 25 connected to one arm 23 are connected to each other. Groove portions 18, 19, 20
The guide member 15 is fitted into the guide member 15 and moves in equilibrium along the guide member 15 according to the operation of the moving mechanism 3.

The hanger 27, which is always held suspended from the balance support 21, is equipped with a suction cup 30 on a support plate 29 at the lower end of the support rod 28 connected to the center of the rod 24 so as to be repositionable and detachable.

Reference numeral 31 denotes an intake pipe connected to the suction cup 30, and is appropriately communicated with an intake switching device (not shown).

The motor 10 is started and stopped by button operation in the control system, and is controlled by each arcuate groove 1 of the guide body 15.
9, 20, the switch 32 is arranged so that its position can be adjusted.
．． 33 is actuated by the guide rollers 26, it is possible to switch between forward and reverse directions, including a pause for a predetermined period of time.

Therefore, in the transfer device of this example configured as described above, 1
Workpieces can be automatically transferred between the two conveyors 1 and 2 based on control of the base motor 10.

That is, when the motor 10 is driven to rotate in the forward direction in synchronization with the timing at which the suction cup 30 of the hanger 27 suctions the workpiece W on the first conveyor 1 due to the operation of the intake switching device, the movement mechanism 3 is activated in the direction P in the figure. In the process, the balance support 21 is successively moved along the first arcuate groove 19, the horizontal groove 18 and the second arcuate groove 20 of the guide body 15 via the guide rollers 26.

Along with this, the suction cup 30 of the hanger 21 rises,
The workpiece is transferred onto the second conveyor 2 by moving back and forth in the order of rightward movement and downward movement.

At this point, the guide roller 26 operates the switch 33 to temporarily stop the motor 10, and the suction cup 30
While waiting on the second conveyor 2 side, the workpiece W is released by the operation of the intake switching device.

Then, after a predetermined period of time, the motor 10 is re-driven in the reverse direction to follow the operation of the moving mechanism 3 in the Q direction, and the balance support 21 is moved from the second circular groove part 20 of the guide body 15 to the horizontal groove part 18 and the first circular groove part 19. Go back in this order.

At the end of this backward movement, the motor 10 is temporarily stopped by actuation of the switch 32 by the guide roller 26, while the suction cup 30 of the hanger 27 is placed on standby at the workpiece suction position on the first conveyor 1.

After suctioning the workpiece, the hanger 27 and the suction cup 30 are moved back and forth in the same manner as described above to transfer the workpiece.

In this example device, when looking at the movement of the balance support 21 with respect to the guide body 15, the support 21 is buffered in the horizontal direction in the first and second arcuate grooves 19 and 20 during the forward and backward processes. Since the transition starts and ends in a typical manner, the movement of the hanger 27 can be extremely smooth and the transition can be made quickly without shaking.

Moreover, since the lowering end position can be appropriately selected when the hanger 27 and the suction cup 30 are raised and lowered based on the position adjustment of each switch 32, 33, there is no height difference between the two conveyors 1 and 2 as shown in the figure. Even if the workpiece is located at the same location, it is possible to transfer, receive, and deliver the workpiece at an accurate location.

The transfer device to which the present invention is directed may be, for example, a type in which the moving mechanism 3 shown in the drawing is directly connected to a motor, or a type in which an end-shaped wire is stretched between winding drums.

Alternatively, the guide bodies 15 may be arranged in parallel on both sides, and the balance support 21 may be constructed with both ends supported.

In any case, since the movement form of the hanger 27 and suction cup 30, which are holding members, can be determined by the movement mechanism 3 and the guide body 15, the transfer between the lines, including the amount of vertical and horizontal movement, is possible. It may be selected as appropriate depending on the location.

By applying the device shown in this example, it is possible to use a multi-unit type, or add a workpiece holding member to simultaneously transfer two workpieces.

Next, the effects of the present invention will be explained.

The present invention includes a chain suspended between a motor-driven driving side chain wheel and a driven side chain wheel, and a guide in which a groove having the same locus as the rotation locus of the chain is formed parallel to the rotation locus of the chain. A balance support, which is rotatably attached to a part of the chain via a pin, is engaged with the groove of the guide body through a guide roller so as to be able to reciprocate in several drops. In addition, a workpiece gripping device, such as a suction cup 30, is attached to the balance support in a workpiece transfer device to which the workpiece gripping device of the hanger 21 is attached.

As a result, the present invention has a simple structure and can easily transfer the workpiece in parallel with any locus of lift and lateral movement.Moreover, since it is chain driven, one workpiece transfer device as shown in the figure uses one motor. In addition, it is possible to easily interlock the workpiece transfer device with an inverted table, and in particular, it is possible to obtain a sufficient amount of lateral movement of the workpiece, and the workpiece can be moved at the stroke end regardless of the amount of lateral movement of the workpiece. There is an effect that the moving speed can be made into the most ideal slow start/slow stop characteristic as a work transfer speed characteristic due to the simple harmonic characteristic of circular motion.

[Brief explanation of the drawing]

The figures show one embodiment of the present invention, in which Fig. 1 is a front view showing the device of this example, Fig. 2 is a plan view thereof, Fig. 3 is a perspective view showing the main parts of the device of this example, and Fig. 4 The figure is an explanatory diagram illustrating a work transfer mode. 3...Moving mechanism, 10...Motor, 1
5... Guide body, 18... Horizontal groove part, 1
9...First arcuate groove, 20...Second arcuate groove, 21...Equilibrium support, 27...
・Hanger 30...Suction cup, W...
work.

Claims (1)

[Scope of utility model registration request] A chain suspended between a motor-driven driving side chain wheel and a driven side chain wheel, and a guide body having a groove parallel to the rotation locus of the chain and having the same locus as the rotation locus of the chain. and a balance support rotatably attached to a part of the chain via a pin is engaged with the groove of the guide body through a guide roller so as to be able to reciprocate along the groove, and . A workpiece transfer device, characterized in that a workpiece gripping tool is attached to the balance support.