JPS5845033Y2 - Transfer device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a device that automatically grabs and transfers objects to a predetermined position.

Conventional devices of this kind use separate drive devices for the action of grasping the transferred object and the action of transferring it after grasping, so the drive mechanism is complex, prone to failure, and the manufacturing cost of the case is high. There were drawbacks such as.

This invention securely clamps the transferred object with one action of one cylinder, then moves forward at a predetermined position 1 while holding the transferred object, and when the cylinder is operated in reverse, the transferred object is released from the clamping. The purpose of the present invention is to provide a transfer device that can be returned to its original position for the next transfer.

Next, one embodiment of the present invention will be described with reference to the drawings.

Reference numeral 1 denotes a hydraulic or pneumatic cylinder attached to the back of a fixed plate 2 that is fixed upright, and its piston rod 3 passes through the upper part of the fixed plate 2 so as to be movable, and a pin 5 is inserted vertically into the tip of the cylinder. A pin joint 4 is formed.

Two parallel long guide rods 6 are provided below the front surface of the fixed plate 2 and protrude forward, and a stopper 7 is provided at the tip of the rods 6.

8 is inserted through the two guide rods 6 mentioned above.
A sliding metal fitting that can freely slide in the horizontal direction along the rod 6. Two guide grooves 9 are cut on the upper surface of the sliding metal fitting 8 in a direction perpendicular to the rod 6, and a pinion is inserted between the side guide grooves 90. A pinion accommodating recess 10 is formed in a size such that the pinion 15 can freely rotate in the horizontal direction and the tooth surface of the pinion 15 somewhat protrudes into the side guide groove 9.

Further, a bottom groove 11 for accommodating a brake plate 23 (described later) is provided on the bottom surface of the hardware 8 in a direction perpendicular to the guide rod 6, that is, parallel to the guide groove 9. The guide rod 6 is cut to such a depth that the lower part or all of the circumferential surface of the guide rod 6 is exposed.

Reference numeral 12 denotes a cover plate attached to the upper surface of the sliding metal fitting 8 with a set screw 13. A hole 14 is provided in the center of the cover plate 12, and the pinion 1 accommodated in the pinion accommodation recess 10 is inserted into the cover plate 12.
The pinion shaft 16 of No. 5 is made to protrude upward from the shaped hole 14.

17 is a first arm, one end of which is pivotally connected to the pin 5 of the pin joint 4, and the other end is pivotally connected to one end of the second arm 18 via a pin 19 to form a link mechanism; 1
The other end of 8 is fixed to the upper end of the pinion shaft 16 protruding from the hole 14 of the cover plate 12.

Therefore, the pinion 15 is rotated by the actuation of the cylinder 1 via the pin joint 4 and the first and second arms 17,18.

201/'i Guide rods 6 are provided on both sides of the sliding metal fitting 8.
A rack rod 21a that is slidable in one of the two guide grooves 9 on the upper surface of the hardware 8 is provided on the inside of the side plates 20.

21b with their tooth surfaces facing each other, and the rack rod 2
1a and 21b are meshed with the pinion 15.

At the front ends of the side plates 20, clamping pieces 22a and 22b, each having a shape that makes it easy to clamp the transferred object, are fixedly mounted so that they face each other. , Rack rod 2 that meshes with this
1a and 21b pull both side plates 20 together and hold both side plates 22a.
, 22b are configured to clamp the transferred object.

50, rack rods 21a and 2 are installed inside the side plates 20, respectively.
The rack rods 21a and 21b are protruding parallel to the guide rods 1b and are slidable in the guide grooves 9, and when the rack rods 21a and 21b each slide in one guide groove 9, they fit into the other guide groove 9. The gripping piece 22a slides.

This is to ensure that 22b can be operated reliably.

By the way, as mentioned above, the sliding metal fitting 8 has the guide rod 6 inserted therethrough and slides freely, so when the cylinder 1 operates, the sliding metal fitting 8 moves forward along the guide rod. The pinion 15, which is indirectly connected to the piston rod 2, does not rotate reliably, and therefore both clamping pieces 22a, 2
The approach movement of 2b will not be carried out reliably.

Therefore, in this device, the brake plate 25 is fitted into the bottom groove 11 on the bottom surface of the sliding hardware 8, and the lower side of the guide rod 6 that is inserted through the inside of the hardware 8 is strongly pressed, so that the hardware 8 can be easily removed from the guide rod 6. The metal fitting 8 is designed so that it does not slide and only moves forward when a certain pressing force is applied to the sliding metal fitting 8.

That is, as shown in FIGS. 1 and 4, the brake plate 23 has fitting recesses 24 formed near both ends of its upper surface so as to be able to slide in close contact with the lower side of the guide rod 6. 24, two insertion holes 25 are opened, and an adjustment screw 27 wrapped with a coil spring 26 is inserted from below. It is attached by engaging the screw 27 in the bottom groove 11 of the sliding metal fitting 8 with strong pressure, and the fitting recess 24 of the brake plate 23 is provided on the lower side of the base end and tip end of both guide rods 60. recesses 28a and 28b that can be fitted with the
For example, when the recess 24 and the recess 28a are fitted together, the cylinder 1 is activated and the pin joint 4, first and second arms 17
．． When a certain pressing force is applied to the sliding hardware 8 through the pinion 18 and the pinion 15, the sliding hardware 8 is released from the fitting between the recesses 24 and 28a against the elastic force of the spring 26, and the sliding hardware 8 is released. It moves forward along the rod 6.

Note that the strong pressure of the brake plate 23 on the guide rod 6 can be freely adjusted by rotating the adjustment screw 27, and thereby the clamping force of the clamping pieces 22a and 22b on the transferred object can also be adjusted. .

Reference numeral 29 denotes a stopper protruding from the front surface of the fixed plate 2, which together with the stopper 7 at the tip of the guide rod 6 serves as the end of the movement of the sliding metal fitting 8.

Next, the operation of the device of the present invention will be explained based on FIGS. 5 and 6. As shown in FIG. 5A, when the cylinder 1 operates and the piston rod 3 starts moving forward,
The first arm 17, which is pivoted to the pin joint 4 at the tip, causes the second arm 18 to pivot in the horizontal direction, thereby rotating the pinion shaft 16, which is the pivot axis thereof, and causing the pinion 15 to rotate.

At this time, the guide rod 6 inserted into the sliding hardware 8 is elastically strongly pressed by the brake plate 23 whose lower side is fitted into the bottom groove 11 of the sliding hardware 8 as described above, especially as shown in FIG. Since the recess 28a of the guide rod 6 and the recess 24 of the brake plate 23 are in a fitted state as shown in FIG. Starting is inhibited.

Therefore, when the pinion 15 rotates, the rack rods 21a and 21b meshing with it simultaneously slide in the kite groove 9 on the upper surface of the hardware 8, pulling the side plates 20 inward, and causing the front end of the core side plate 20 to slide. The attached clamping pieces 22a and 22b firmly clamp the transferred object 60 from the sides.

Then, when the piston rod 3 moves further forward, the clamping piece 2
2a and 22b are holding the transferred object 60, so the side plates 20 cannot get any closer to each other, so the rack rod 21
The rotation of the pinion 15 that is meshed with "a" and "2lb" is stopped, and from now on, the pressing force of the piston rod 3 will act in the forward direction of the sliding hardware 8, and the guide rod 6 of the brake plate 23 will be moved by the spring 26. The engagement between the fitting recess 24 of the brake plate 23 and the recess 28a on the lower side of the guide rod 6 is released by overcoming the elastic force of
The brake plate 23 slides forward along the guide rod 6 while holding firmly the brake plate 23 without pressing the lower side of the roller.

When the sliding metal fitting 8, which has held the transferred object 60 between the holding pieces 22a and 22b, moves forward and reaches the tip of the guide rod 6, the concave portion 24 of the brake plate 23 as shown in FIG.
This time, the rod 6 is fitted into the recess 28bK on the lower side of the tip.

At this point, the transferred object 60 may be subjected to a predetermined processing or released from the grip as described below, and then transferred again to another position by another device.

Next, when the cylinder 1 reversely operates to move the piston rod 3 backward, the sliding metal fitting 8 continues to slide backward until a tensile force of more than a certain amount is applied at its forward end as described above. As shown in FIG. 6A, the pinion 15 is first reversely rotated via the first and second arms 17 and 1B, and both side plates 20 are removed via the rack rods 21a and 21b. Push out toward
.

22b is expanded to release the transferred object 60 from the firm grip.

Then, the piston rod 3 further retreats, and the first arm 17 and the second arm 18, which had been bent and connected, are connected linearly and the rotation of the Binioff 150 is stopped. The tensile force acts to move the sliding hardware 8 backward, overcomes the elastic force of the brake plate 23 on the guide rod 6, and engages the recess 24 of the brake plate 23 with the recess 28b on the lower side of the tip of the guide rod 6. The sliding hardware 8 slides back along the guide rod 6, returns to its original position, and waits for the next transfer of the object.

The device of the present invention is constructed as described above, and after moving the piston rod of the cylinder forward, it automatically securely clamps the transferred object, moves it forward, moves it to a predetermined position, and then automatically moves it back when the piston rod moves back. Since the transferred object is released from the grip and returned to its original position for the next transfer, it can be fully automated and labor-saving by incorporating it into a series of processing transfer systems for precision parts, for example. The above action is performed automatically with a single cylinder instead of using several types of drive devices as in the past, making it easy to operate and work reliably, with a simple structure. It is also easy to manufacture.

4. Furthermore, the clamping force of the clamping piece 22 on the transferred object can be easily adjusted by the adjusting screw 27 with a spring 26 inserted through the brake plate 23 that presses the guide rod 6.
It may be adjusted according to the shape and properties of the transferred object.

Note that the clamping piece 22 can of course be molded into a shape that corresponds to the shape of the transferred object, and can be easily replaced with another clamping piece.

[Brief explanation of the drawing]

Fig. 1 is an exploded perspective view of the transfer device according to the present invention, Fig. 2 is a plan view of the same, Fig. 3 is a side view of the same, Fig. 4 is an enlarged sectional view taken along line A-A of Fig. FIG. 6 is an explanatory diagram showing the operation of the device of the present invention. Explanation of symbols, 1...Cylinder, 2...Fixing plate, 3...
- Screw rod, 4... Pin joint, 5... Pin, 6... Guide rod, 7... Stopper, 8...
- Sliding hardware, 9... Guide groove, 10... Pinion housing recess, 11... Bottom groove, 12... Cover plate, 13...
Set screw, 14... hole, 15... pinion, 16...
...Pinion shaft, 17...First arm, 18...Second arm, 19...Pin 20...Side plate, 21...
- Rank rod, 22... Holding piece, 23... Flake plate, 24... Fitting recess, 25... Insertion hole, 26...
Spring, 27...adjustment screw, 28...recess, 2
9... Stopper 50... Guide rod, square hole, 60... Transfer object. 55...square shaft, 56...

Claims (3)

[Scope of utility model registration request] (1) A piston rod of a hydraulic or pneumatic cylinder attached to the back side of a fixed plate fixed upright is inserted through the fixed plate to form a joint at its tip, and a joint is formed on the front side of the fixed plate toward the front. A guide rod is provided protrudingly provided, and two guide grooves are cut in a direction perpendicular to the guide rod on the upper surface of the sliding metal fitting that is inserted through the guide rod and can slide, sandwiching a pinion accommodating recess formed in the center. In addition, a bottom groove is cut parallel to the guide groove on the bottom surface of the sliding hardware to a depth such that the lower side or the entire guide rod is exposed, and a brake plate is inserted into the bottom groove. side plates are disposed parallel to the guide rod on both sides of the sliding metal, and the guides of the sliding metal are placed inside each side plate. A slidable rack rod is attached to each of the grooves to mesh with the pinion accommodated in the recess, and a clamping piece having a shape that makes it easy to clamp the transferred object is attached to the front end of each side plate, and the pinion A transfer device characterized in that the pinion shaft is connected to a joint at the tip of the piston rod via a link mechanism. (2) An adjustment screw wound with a spring is inserted into the brake plate from below and is screwed into the sliding metal part, and the lower side of the guide rod is elastically pressed. Transfer device as described in section. (3) A recess is formed on the lower side of the starting end and front end of the guide rod, and a recess that can fit into the recess is provided on the upper surface of the brake plate. Transfer device according to item 2.