JPS6026903Y2 - Work supply device - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a device for feeding a workpiece to a processing device or the like.

In order to process a workpiece with a processing device, it is necessary to feed the target workpiece to the device, but in order to maintain safety and avoid risks such as injury during feeding, it is necessary to further automate the work. Therefore, an automatic workpiece feeding device is required.

In response to this, conventional methods have been proposed, such as means for gripping and feeding a workpiece with a manipulator, and means for guiding and feeding a workpiece using a chute.

However, in the former case, a device for grasping and releasing the workpiece, a guide device for guiding the workpiece to a predetermined position while grasping it, etc. are required, which increases the cost and requires a large installation space. There are some drawbacks.

In the latter case, the equipment is simple and the cost is low, but after the processing is completed by the processing equipment, if you try to take out the work towards the supply side due to the next process, the chute will get in the way and it will not be possible. There was a problem.

The present invention was developed against the background of the above circumstances, and its purpose is to provide a workpiece supply device that can take out a workpiece to the workpiece supply side, requires a small installation space, and is inexpensive. There is a particular thing.

The features of the work supply device according to the present invention are as follows: (1) a first moving member that is held by the device body and moved forward and backward by a drive device; a second moving member held movably in the forward and backward directions; (3) a movable engaging body attached to either one of the circular moving members; and (4) a second moving member attached to one of the circular moving members; an engaged portion provided on the other side of the movable member; (5) means for biasing the movable engaging body in a direction to engage the engaged portion; and (6) a means for urging the movable engaging body to engage the engaged portion. an engagement release cam that acts on the movable engagement body to release the engagement when the circular movement member is integrally advanced a predetermined distance while engaged with the joint portion; (7) the second movement member; a stopper that defines a retraction limit with respect to the device main body, and when the circularly moving member is in the retracted position, the second
The workpiece placed on the movable member is transported by the forward movement of the circular movable member, and after the movable engagement body is released, the first movable member is moved relative to the second movable member. While moving forward to push the workpiece to the supply position on the second moving member, when moving backward, both the members move back together and after the second moving member is prevented from moving back by the stopper, the second moving member The first member is configured to be moved back to the original position relative to the two members.

Hereinafter, one embodiment of the present invention will be described in detail based on the drawings.

In FIGS. 1 and 3, 10 is a base plate 12.
．． 14, and a slide table 16 is slidably attached to the upper surface of the slide base.

The slide base 10 has a rectangular flat plate shape, and two guides 2 are provided at both widthwise ends of the top surface of the slide base 10.
0 are fixed symmetrically with bolts.

The slide table 16 includes a flat bottom plate 22 having a substantially rectangular shape, and a rectangular cross section that is arranged along the longitudinal direction at both widthwise ends of the top surface of the bottom plate 22 and at a constant distance from both ends. Two square rod-shaped spacers 2
4 and the upper surfaces of both spacers 24, and the bottom plate 2 is installed via the two spacers 24 with bolts 26.
2 and an upper plate 28 fixed to the upper plate 2, and has a flat rectangular tube shape as a whole.

As shown in FIG. 3, the slide table 16 is slidably held by square guide portions 30 formed on the guide 20 at the upper surfaces and both side surfaces of both ends of the bottom plate 22. As shown in FIG.

A conveying plate 32 in the form of a long flat plate is slidably fitted into the hollow portion of the slide table 16.

A vertically penetrating groove 34 is formed in the widthwise center of the tip of the conveying plate 32, and a pin 36 implanted in the bottom plate 22 of the slide table 16 is inserted into this groove 34. Relative movement of the transport plate 32 with respect to the slide table 16 is restricted within a certain limit.

A bracket 38 is attached to the lower surface of the bottom plate 22 of the slide table 16 near the portion where the pin 36 is installed.

On the other hand, an air cylinder 40 is fixed to the lower end of the slide base 10, and a joint 44 screwed onto the tip of a piston rod 42 of the air cylinder 40 is connected to the bracket 38 by a pin 46.

The slide table 16 is moved forward and backward relative to the piston rod 42, so that the slide table 16 joins the joint 44. It is designed to be driven back and forth on the slide base 10 through the bracket 38, and a limit switch (not shown) is attached to the lower surface of the slide base 10 in order to stop the slide table 16 at a fixed position when moving forward or backward. There is.

As shown in FIG. 1, a notch 48 having a constant length and slightly wider than the width of the bracket 38 is formed at the center in the width direction of the tip end of the slide base 10, so that the bracket 48 is cut out when the slide table 16 slides. 3B is slide base 1
It is designed not to interfere with 0.

Further, a stopper 50 is provided on the end surface of the slide base 10 as shown in FIG.
6 retreats a certain distance, the end of the conveying plate 32, which is slidably held by the slide table 16, comes into contact with a stopper 50, thereby stopping the conveying plate 32.

A claw 56 is pivotally attached to a square hole 54 provided near one end near the tip of the conveyance plate 32 shown in FIG. 1 by a pin 58 so as to extend along the longitudinal direction of the conveyance plate 32. .

As shown in FIG. 2, the claw 56 is urged to be lifted at its tip by a torsion spring 60 attached to the pin 58.

A cam groove 62 having a width slightly wider than the thickness of the pawl 56 in the longitudinal direction is formed on the upper surface of the slide base 10 on which the distal end of the pawl 56 slides.

The cam groove 62 consists of a groove 64 with a constant width extending from the tip of the slide base 10 to near the middle of the slide base 10, and a groove 66 with a deeper constant depth extending to the end of the slide base 10. , 164.66 are continuous with the sloped surface 38, and the sloped surface 68 forms a cam surface.

Furthermore, an engagement hole 70 is formed in the conveyor plate 32 at a position above the cam groove 62 in the longitudinally intermediate portion thereof, and engages with the tip of the claw 56. The engagement surface 72 of the engagement hole 70 forms a rearwardly inclined slope.

At the tip of the slide table 16, there is a button 76 that is made to match the shape of the brake shoe 74 that is the workpiece.
is installed.

Furthermore, a brake shoe 7 is provided at the tip of the conveyance plate 32.
A circular arc notch 78 is formed to match the shape of the tie of a press machine that shaves 4.

A fourth
A dispensing device as shown in the figures and FIG. 5 is provided.

The air cylinder 80 is arranged on a base plate 82, and a dispensing member 86 is attached to the tip of a piston rod 84 of the air cylinder 80.

The dispensing member 86 is attached to the upper surface of the press die 88 with a certain gap therebetween, and can be moved forward and backward across the top of the press die 88 by moving the piston rod 84 forward and backward.

Further, at a symmetrical position near the side end surface of the press die 88, a fourth
As shown in the figure, a pair of holders 94 are provided to press and hold the transported work against the press die 88.

The holder 94 can be rotated by a certain angle by rotating its shaft 96 by a drive device (not shown).

Since this mechanism is well known, detailed explanation will be omitted.

Next, the operation of the work supply device of this embodiment will be explained.

First, as shown in FIG. 6, the right end of the conveyance plate 32 has retreated to the position where it abuts the stopper 50, and the claw 56 attached to the slide table 16 is engaged with the engagement surface 72 of the engagement hole 70. The slide table 16 has been moved back to the matching position.

In this state, the brake shoe 74, which is a workpiece, is being protruded from the conveyor plate 32 from the slide table 16.
Place on top.

Next, when the start button is pressed, the piston rod 42 of the air cylinder 40 moves forward, causing the slide table 16 to move forward on the slide base 10.

The distal end of the pawl 56 is always kept in the cam groove 6 by a torsion spring 60.
2, and the claw 56 is in contact with the bottom surface of the groove 6.
6, the claw 56 engages the engagement surface 7 of the conveying plate 32.
2.

Therefore, when the slide table 16 is moved forward, the conveyance plate 32 is also moved forward integrally.

As shown in FIG. 7, just before the tip of the conveying plate 32 hits the side surface of the die 88 of the press, the end of the pawl 56 comes into contact with the inclined surface 68 of the cam groove 62 and is pushed up. The side is lowered and the engagement surface 7 of the conveying plate 32
2 will be removed.

When the slide table 16 moves further forward, the transport plate 3
The tip of the die 88 touches the side surface of the die 88, and the transfer plate 3
2 is stopped from moving forward, but the slide table 16 continues to move forward and presses the brake shoe 74 against the side surface of the die 88 as shown in FIG. It will be destroyed.

At this time, if a limit switch (not shown) is pressed,
The holder 94 operates to press and hold the workpiece 74 against the press die 88.

Next, a shaving process is performed by a press (not shown), but before starting this process, the piston rod 42
As the slide table 16 moves backward, the tip of the transport plate 32 comes into contact with the stopper 50 and the transport plate 32 stops moving backward, but the slide table 16 still moves backward and the claws 56 touch the transport plate. 32
When the piston rod 42 is retracted to a state where it engages with the engaging surface 72 of the piston rod 42, a limit switch (not shown) is pressed, the piston rod 42 is stopped, the retraction is stopped, and the original state is returned.

During this time, the shaving process is performed, and then the holder 9
4 unclamps the workpiece by turning it in the opposite direction from the first time, and then the piston rod 84 of the workpiece discharging device moves forward.
The workpiece 74 is transferred to the chute 10 disposed between the die 88 and the slide base 10 by the dispensing member 86.
0 and transported to a predetermined location.

This completes one cycle.

Since the work supply device of this embodiment is constructed as described above, the height is lower than that of a supply device using a manipulator, and the installation space as a whole can be reduced.

Further, since the processing machine and the work supply device can be arranged at a certain distance, there is an advantage that the work can be delivered to the work supply device side for convenience of the work process.

Furthermore, since the structure is relatively simple, the cost can be reduced compared to the above-mentioned supply device, etc., which has a complicated structure.

In addition, since the workpiece discharging device is attached, there is little risk of injury to hands, etc., making it safe, and at the same time, workpiece removal can be easily automated.

Although the embodiments of the present invention have been described above, the present invention is not limited to these embodiments in any way, and may be implemented with various improvements and changes as long as they do not deviate from the gist of the invention.

For example, the slide table may move the conveyor plate not only in a linear motion but also in a rotational motion.

In other words, the arc-shaped slide table is guided by the arc-shaped guide of the slide base so as to be able to slide and rotate, and is further guided by the arc-shaped guide section in the slide table to convey the arc-shaped and plate-shaped material. The plate may be able to rotate while sliding.

Also, a mechanism for pressing the workpiece onto the processing machine (a mechanism separate from the present workpiece supply device may be used).

As a means of urging the claws that are to engage the conveyance plate and the slide table in the direction of engagement, the position of the support pin hole provided in the claws may be biased to one side, and the claws may be tilted by their own weight. It is also possible to use an engaging body that engages and disengages by linear movement.

Further, the feeding device of this embodiment can be used not only for the brake shoe 74 shown in FIG. 1 but also for various other workpieces by replacing the brake shoe 76.

Also, without using the holder 94, the slide table 1
6, the workpiece may be pressed and held against the side surface of the press die 88 during processing.

As described in detail above, the present invention can reduce the installation space by lowering the height, can deliver the work toward the installation side of the work supply device, and can reduce costs.

[Brief explanation of the drawing]

FIG. 1 is a plan view of a workpiece supply device that is an embodiment of the present invention, FIG. 2 is a cross-sectional view taken along line A-A in FIG. 1, and FIG. 3 is a cross-sectional view taken along line B-B in FIG. It is. FIG. 4 is a plan view showing the workpiece dispensing device;
The figure is a side view of the device. FIGS. 6 to 8 are explanatory diagrams showing the operating state of this supply device. 10...Slide base, 16...Slide table, 32...Transportation plate, 40
... Air cylinder, 50 ... Stopper, 56 ... Claw, 60 ... Torsion spring,
62...cam groove, 64,66...groove,
68... Inclined surface (cam), 72... Engaging surface, 80... Air cylinder, 94...
·holder.

Claims (1)

[Claims for Utility Model Registration] A first moving member held by the device body and moved forward and backward by a drive device; a second moving member held movably in the forward and backward directions by the first moving member; a movable engagement body attached to either one of the circularly moving members; an engaged portion provided on the other of the circularly moving members to engage with the movable engaging body; a means for urging the movable engaging body in a direction to engage the engaged portion; a disengagement cam that acts to disengage the second moving member; and a stopper that defines a retraction limit of the second moving member with respect to the device body, and a stopper that defines a retraction limit of the second moving member with respect to the apparatus body, The workpiece placed on the circularly moving member is transported by the forward movement of the circularly moving member, and after the movable engagement body is released, the first moving member specifically moves forward relative to the second moving member. While the workpiece is pushed to the supply position on the second moving member, when retracting, both the members retreat together, and after the second moving member is prevented from retreating by the stopper, the second moving member A work supply device characterized in that the first member is configured to be relatively retracted to the original position.