JPS63291252A - Chucking mechanism - Google Patents

Abstract

PURPOSE:To enable the title chucking mechanism to move in the right and left direction and to shorten working time in the case of shifting to the next motion after completion of the motion by holding both ends of the body to be held by a pair of claws provided at both ends of a substrate. CONSTITUTION:On transmission of a chucking command a rotary movement is transmitted to a claw 25 via a link 45 from a gear 41 on one hand by a rotation driving source 49 and transmitted as well to a claw 26 via a gear 42 and link 46 from the gear 41 on the other hand. Both claws 25, 26 transfer in a close state with respective support shaft 12, 13 as the fulcrum. When both claws 25, 26 abut to both side faces 61, 62 of respective case 60, a chucking mechanism becomes in the state of clamping the case 60 to enable the handling motion of the case 20. On completion of the work the chuck mechanism returns to the original state again because of the rotation driving source 49 self- returning to the original state with said chucking command being released. The movement of the other case 60 can thus be done at the position as it is and the working time is shortened.

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a chuck mechanism, and in particular, the present invention relates to a chuck mechanism, and more particularly, to a chuck mechanism that uses a plurality of rectangular parallelepiped-shaped cases containing magnetic tapes, disk disks, etc., arranged in a row with partitions. This invention relates to a side clamp type chuck mechanism that can be applied to handling.

[Prior Art] Conventionally, this type of chuck mechanism has been applied to handling cases in a state in which rectangular parallelepiped cases containing objects to be gripped, such as magnetic tapes and disk disks, are arranged in a partitioned manner. A pair of claws are disposed opposite to each other on the front and back surfaces of the case, and the front and back surfaces of the case are clamped by driving the pair of claws to open and close the case.

When handling of one case is finished, the claws are moved back from the case and moved to the next position, and then the claws are further moved back to clamp the case.

[Points to be solved] In the conventional chuck mechanism described above, the claws are opened and closed on the front and back surfaces of the case to be gripped, so it is necessary to prevent the claws from interfering with adjacent cases. As a result, the partition dimensions of the shelves on which the cases are arranged become large, resulting in a disadvantage that the efficiency of mounting the shelves is extremely low.

Also, if you open and close the claws on the front and back sides of the case, when you have finished handling one case and are about to move to the next case, the claws will move backwards, then move to the next case position and move forward again. However, there is a drawback that the operation time is increased.

[Means for Solving Problems] The present invention has been made to solve the above-mentioned problems of the conventional art. A pair of claws that are rotatably supported and each has opposing gripping parts on one end side for gripping both ends of a gripped component, and a pair of claws that are interlocked with each other between the two claws on the substrate, and one of which is connected to a rotational drive source. a link that connects the adjacent pawl and the gear and transmits the rotation of the gear to the pawl to open and close the gear, and a link that protrudes from the gripping surface side of the pawl so as to be able to come into contact with the gripped part, and each gear The structure includes rollers attached to the outer periphery.

[Example] Next, embodiments of the present invention will be described with reference to the drawings.

1 to 3 are diagrams showing one embodiment of the present invention. The chuck mechanism shown in FIG. 1 includes a substrate 14 and a pair of claws 25.
．． 26, a pair of gears 41, 42, and a pair of links 45
．． 46 and a pair of rollers 35 and 36.

The substrate 14 has a strip-like shape and includes a pair of vertically opposed support shafts 12.13 at both ends 10.11.

A pair of claws 25.26 are connected to the support shaft 12.1 on the base plate 14.
3 to form a sliding pair, and gripping surfaces 19, 20 facing inwardly to one outer end 17.18 of the support shaft 12.13.
The other end 21.degree. 22 is provided with a connecting shaft 23.degree. 24 parallel to the supporting shaft 12.13.

The pair of gears 41.42 is a rotatable gear consisting of an outer ring 31.32 and an inner ring 33.34, which are arranged between the claws 25.26 with a part of the outer circumference 29.30 protruding toward the gripping surfaces 19, 20. It is equipped with the above-mentioned rollers 35°36. Further, a pair of gears 41 and 42 are connected to the support shaft 1 on the other end side of the rollers 35 and 36.
Connecting shafts 39 and 40 are provided parallel to 2° 13 and are arranged opposite to each other and adjacent to each other. A pair of links 45 and 46 are the claws 2.
5. When the gear 41 and 42 are closed, the gear 35
．． 36 is at the middle position of the claws 25.26.
26 and gears 41.42 connecting shafts 23, 24, 39.40
are connected in pairs.

Further, one of the gears 41 is connected coaxially with a self-return type rotary drive source 49, which closes the pawls 25, 26 during operation.

2 and 3 are plan views showing the positional relationship between the chuck mechanism shown in FIG. 1 and the case, which is an object to be gripped. Indicates open state.

When the chuck mechanism is in the idle state, the gripping surfaces 19 and 20 of both claws 25 and 26 are in contact with both side surfaces 61 and 62 of the rectangular parallelepiped case 60 that is the object to be gripped. Also, the outer periphery 29.30 of the gears 35.36 on both gears 41.42 is also
1.62 is in contact with the front surface 63. In this state, the center axes of both rollers 35.degree. 36 are arranged inside (one dimension) between the center axes of both gears 41, 42.

Next, the operation of the chuck mechanism will be explained.

First, the chuck mechanism in the non-operating state is as shown in Figure 3.
It is waiting without contacting the case 60.

When a chuck command (not shown) is transmitted, rotational motion is transmitted from the gear 41 to the claw 25 via the link 45 by the rotational drive source 49, and the rotational motion is transmitted from the gear 41 to the pawl 25 on the other hand.
1 to the pawl 26 via the gear 42 and the link 46, and both pawls 25, 26 shift to the closed state with the respective support shafts 12, 13 as fulcrums.

Both claws 25 and 26 are attached to both sides 61 and 6 of the case 60, respectively.
2, the chuck mechanism clamps the case 60 as shown in FIG. 2, and the case 60 can be handled.

When the work is completed, the chuck command (not shown) is released and the rotational drive source 49 returns to its original state, so that the chuck mechanism also returns to its original state as shown in FIG. do.

In addition, the rollers 35 and 36 are in a clamped state.
．． Since the center axis of the gear 36 is eccentric inward with respect to the center axis of the gears 41 and 42, the case 60 can function stably even when the load on the case 60 changes. Also, gear 41.4
2, the link 45.degree. 46, and the pawl 25.26, due to the wedge effect, a large force clamping function and a bushing function can be achieved with a small power including the rollers 35.36.

Furthermore, by adding an access mechanism (such as Z-axis and Since the case 60 is in contact, it can be moved to another case 60 while remaining in the same position, and the operation time can be significantly shortened.

[Effects of the Invention] As explained above, the chuck mechanism of the present invention grips both ends of the object with the pair of claws provided at both ends of the substrate, so after one operation is completed, the chuck mechanism moves to the next operation. If you try to
It can be moved in the left and right direction, reducing operating time and speeding up work.

Another advantage is that the rollers on the gear can perform a bushing function when the case is gripped (closed).

[Brief explanation of the drawing]

Fig. 1 is a perspective view of a chuck mechanism according to an embodiment of the present invention, Fig. 2 is a plan view showing the operating state of the chuck mechanism shown in Fig. 1 when it is closed, and Fig. 3 is its operating state when it is opened. FIG.

Claims (1)

[Claims] A band plate-shaped substrate, a pair of claws rotatably supported on both ends of the substrate, each having opposing gripping portions on one end side for grasping both ends of a gripped component, and a pair of claws located between the claws on the substrate. a pair of gears that mesh with each other and one of which is connected to a rotational drive source;
A link that connects the adjacent pawl and the gear and transmits the rotation of the gear to the pawl to open and close it, and a link that is attached to the outer periphery of each gear so as to protrude toward the gripping surface of the pawl so as to be able to come into contact with the gripped part. A chuck mechanism characterized by being equipped with a takoro.