JP2761637B2 - Device for gripping parts - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a device for gripping a part or the like on an inflated surface of a tube.

[0002]

2. Description of the Related Art As shown in FIGS. 9 and 10, a conventional gripping device has a rigid body 1 having a cylindrical shape with both ends opened.
The tube 1 having both ends opened so as to cover its inner peripheral surface
01, a fluid injection channel 102 is formed in the rigid main body 100, and a fluid such as air is injected from the fluid injection channel 102 to inflate the tube 101 inward. It is composed. Both ends of the tube 101 are folded back from the inside to the outside and attached to the rigid main body 100 by caulking 103 and 104.
In addition, the rigid main body 100 has a flange-like portion 1 that protrudes outward.
The fluid injection passage 102 is formed at the location of the flange 100A, and the tap 105 for attaching such a member to the apparatus main body is formed.
At least 10 mm is required for the flange 100A to protrude outward. The tap 105 is for attaching to the main body of the apparatus, for example, for moving the gripping apparatus up and down.

[0003]

In a gripping device as shown in FIGS. 9 and 10, a component 200 as shown in FIG.
Are arranged at a small interval, and these components 200 are to be grasped at once, since the outer diameter R of one grasping device is large, they will collide with each other in a hatched portion as shown in FIG. Therefore, the component 200 as shown in FIG. 11 cannot be gripped by connecting a plurality of gripping devices in parallel. Also, in the conventional gripping device, the flange 1
00A must be formed, and the fluid injection path 1
In order to force the lipstick body into the case by grasping and rotating the lipstick 201 as shown in FIG.
It was impossible for the joint 106 attached to 2 to rotate out of the way (see FIG. 14).

Therefore, the present invention is intended to provide a plurality of gripping devices arranged in parallel even when the parts to be grasped are arranged in a line and the interval is small, and to grasp the parts at once. It is an object of the present invention to provide a gripping device for a part or the like which can be rotated when it is necessary to rotate the same.

[0005]

SUMMARY OF THE INVENTION In order to achieve the above-mentioned object, the present invention provides a fluid injection port formed in the upper surface of a rigid main body and a fluid injection passage formed in the main body. An outer cylinder with an open lower end is attached so as to enclose it, and one end of a tube with both ends opened, which is obtained by simply cutting a long rubber tube having the same diameter at both ends at a predetermined length, is placed over the lower part of the rigid main body. The other end of this tube is turned outward and attached to the outer periphery of the lower end of the outer tube by caulking or the other end of this tube is turned back near the opening of the outer tube and Attached by caulking to the upper outer periphery, a fluid such as air is injected from the fluid injection port into the space between the tube and the outer cylinder or the space between the tubes via the fluid injection path, and the tube is configured to be inflatable inward, Flow Insert the like injected to grab in front of the tube parts is obtained by construction to grip parts and only the expansion surface of the tube to expand the tube. Further, a rotating cylinder is mounted on the upper surface of the rigid main body, and a rotating mechanism is connected to the rotating cylinder so as to be rotatable. Further, in the tube in which the other end of the tube is mounted on the upper portion of the rigid body, the outer cylinder is detachably mounted on the upper surface of the rigid body. Furthermore, the other end of the tube is folded back near the opening of the outer cylinder, and the upper end of the outer cylinder is attached to the outer periphery of the upper portion of the hard main body by caulking. Furthermore, a number of rotatable gripping devices are installed in parallel,
Adjacent outer cylinders are brought close to each other so as not to come into contact with each other, so that the entire outer cylinder can be moved vertically and horizontally.

[0006]

Preferred embodiments of the present invention will be described below with reference to the accompanying drawings.

In FIG. 1, a fluid inlet 2 is formed at the center of the upper surface of a rigid main body 1, a joint 3 is attached to the fluid inlet 2, and a hose or the like is connected from the joint 3 to an air compressor (not shown) or the like. Connected by A fluid injection path 4 is formed in the rigid main body 1 continuously with the fluid injection port 2.
The outer diameter of the lower end of the rigid main body 1 is formed small, and one end of a tube 5 is attached to the outer periphery of the lower part by a caulking ring 6. An outer cylinder 7 having an open lower end is attached to the upper portion of the rigid main body 1 so as to include the rigid main body 1. An O-ring 8 is interposed at a place where the outer cylinder 7 and the hard main body 1 are attached to achieve sealing. The other end of the tube 5 is bent out from the lower end of the outer cylinder 7 to the outside, and attached by a caulking ring 9. A sealed space 10 is formed between the tube 5 and the outer cylinder 7, and the fluid injection path 4 communicates with the space 10 so that a fluid such as air is injected. FIG. 2 shows a state in which a fluid such as air is injected from the fluid injection port 2 into the space 10 through the fluid injection path 4. In this state, the tube 5 expands inward, and the parts and the like are gripped by the expanded surface. The tube 5 is made of only a long rubber tube having the same diameter at both ends cut into a predetermined length,
It can be manufactured at very low cost.

In the second embodiment shown in FIGS. 3 and 4, an example in which the upper and lower ends of the tube 5 are attached to the upper and lower outer sides of the rigid body 1 is shown. After being attached with the caulking ring 9, the tube 5 is hung downward. The tube 5 is turned back, and the other end of the tube 5 is attached to the upper outer side of the hard main body 1 with the caulking ring 6. In this embodiment, the space 10 is formed between the tubes 5 that are folded back and overlapped. One end of the tube 5 is placed over the lower part of the rigid main body 1 and attached to the rigid main body 1 by a caulking ring 9 from the outside. It is preferable not to run out. In such a mounting mode of the tube 5, the outer cylinder 7 does not need to be mounted on the hard main body 1 via the O-ring 8, and is set so as to cover from above the hard main body 1, and is mounted on the upper surface of the hard main body 1. What is necessary is just to attach with a screw 20 etc., and it is detachable. When the amount of fluid to be injected into the tube 5 is made the same by changing the size of the inner diameter of the outer cylinder 7, the smaller the inner diameter of the outer cylinder 7,
The gripping force when expanding is increased. Therefore, the outer cylinder 7 is replaced with another outer cylinder 7 having a different inner diameter according to the type of the object to be grasped.

FIG. 5 shows an embodiment in which five gripping devices shown in the first embodiment are mounted in parallel.
Are arranged at smaller intervals than before so that they can be grasped at the top. The entire apparatus is movable in the vertical and horizontal directions, and the gripped component 200 can be transferred to another location.

The embodiment shown in FIG. 6 shows an example in which the gripping device is configured to be rotatable. A rotary joint 12 is provided at a joint to prevent the hose 19 from rotating. The cylindrical body 13 is attached, and the rotation from the motor 14 is transmitted to the upper end of the rotary cylindrical body 13 by a belt or a chain 15.
Reference numeral 16 indicates a V-groove or a sprocket, and reference numeral 17 indicates a bearing. In this embodiment, when the base 201A of the lipstick 201 is fixed, the case 201B is gripped by the inflated surface of the tube 5, and the entire gripping device is rotated by the rotation of the motor 14, the lipstick main body 201C can be accommodated in the case. FIG. 6 shows a state in which only the leftmost gripping device is connected to the motor 14 so as to be rotatable.
Of course, the rotational force of one motor 14 can be transmitted to all the gripping devices, and it is also possible to connect the motors 14 to each of the gripping devices. Bearing 1
The pipes 18 rotatably supported by 7 are connected to each other in the upper part of the drawing (not shown) so that the whole apparatus can be moved in the vertical and horizontal directions, and the lipstick 201 can be transferred. To do.

In the embodiment shown in FIG. 7, the tube 5 is attached to the rigid main body 1 by caulking the upper end of the outer cylinder 7 having both ends opened. FIG. 8 shows a state in which a fluid such as air is injected into the tube 5 in the embodiment of FIG. In this embodiment, the configuration of the outer cylinder 7 is simple, and the caulking 6 is not required.

[0012]

As described above, according to the present invention, a fluid injection port is formed on the upper surface of the hard main body, a fluid injection passage is formed in the main body, and the hard main body includes the fluid injection passage. An outer cylinder with an open lower end is attached to the rigid body, and one end of an open-ended tube consisting of only a long rubber tube having the same diameter at both ends cut at a predetermined length is placed over the lower part of the rigid body. Attach by outer caulking,
The other end of the tube is turned outward and attached to the outer periphery of the lower end of the outer cylinder by caulking, or the other end of the tube is turned back near the opening of the outer cylinder and attached to the outer periphery of the upper portion of the hard body by caulking, and the fluid inlet is provided. A fluid such as air is injected into the space between the tube and the outer cylinder or into the space between the tubes through the fluid injection path so that the tube can be expanded inward, and parts to be grasped in the tube before the fluid injection. Is inserted to inflate the tube so that parts and the like are grasped only by the inflation surface of the tube, so that a flange-shaped part such as a conventional grasping device is not required. Even if you configure to grab at once,
The distance between components and the like can be reduced as compared with the related art. Further, since the fluid inlet can be formed on the upper surface of the rigid main body, the gripping device can be rotated. That is, when the rotating body is attached to the upper surface of the rigid main body and a rotating mechanism is connected to the rotating body, the device can be rotated and the structure is simple. In this invention, when the inner diameter P of the tube (see FIG. 9) is the same as that of the conventional example, and the outer diameter Q excluding the flange portion 100A of the conventional example is the same as the outer diameter of the outer cylinder, the flange that protrudes outward 100A
It is possible to reduce the space between parts and the like that are to be grasped because there is no space. Further, since the fluid injection port is formed on the upper surface of the rigid main body, the device can be freely rotated. Further, since the tube is protected by the outer tube, the tube is unlikely to be damaged.
Furthermore, since the tube itself is simply a long rubber tube cut to a predetermined length, it is extremely inexpensive, and the cost of the entire apparatus can be reduced.

Further, in the case where the other end of the tube is attached to the upper part of the rigid body and the outer cylinder is detachably attached to the upper surface of the rigid body, the tube can be expanded by changing the inner diameter of the outer cylinder to a different one. The force of grasping the parts at the time can be easily changed.

A plurality of rotatable gripping devices are installed in parallel, adjacent outer cylinders are brought close to each other so as not to contact with each other, and the whole can be moved vertically and horizontally. Can be transferred. The projected area of the entire apparatus can be reduced, and space can be saved.

[Brief description of the drawings]

FIG. 1 is a sectional view showing a first embodiment of the present invention before fluid injection.

FIG. 2 is a cross-sectional view after fluid injection in the first embodiment.

FIG. 3 is a sectional view showing a second embodiment before fluid injection.

FIG. 4 is a sectional view of the second embodiment after fluid injection.

FIG. 5 is a cross-sectional view showing a state in which a plurality of devices of the first embodiment are connected in parallel and a plurality of components are grasped at a time.

FIG. 6 is a cross-sectional view showing an example in which the gripping device according to the first embodiment is configured to be rotatable.

FIG. 7 is a sectional view showing a third embodiment before fluid injection.

FIG. 8 is a sectional view of a third embodiment after fluid injection.

FIG. 9 is a sectional view showing a conventional example.

FIG. 10 is a plan view of a conventional example.

FIG. 11 is a front view showing components arranged at narrow intervals.

FIG. 12 is a plan view for explaining the inconvenience of trying to grip the component as shown in FIG. 11 with a conventional gripping device.

FIG. 13 is a cross-sectional view when a lipstick is gripped by a conventional gripping device.

FIG. 14 is a plan view for explaining the inconvenience of rotating the lipstick by grasping it with the apparatus of FIG. 13;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Hard main body part 2 Fluid injection port 4 Fluid injection path 5 Tube 6,9 Casking ring 7 Outer cylinder 10 Space

Claims (5)

(57) [Claims] 1. A fluid injection port is formed on an upper surface of a rigid main body, a fluid injection passage is formed in the main body, and an outer cylinder having an open lower end is attached to the rigid main body so as to include the fluid injection passage. One end of a tube having both ends opened and formed by cutting a long rubber tube of a predetermined length only over a lower portion of the hard main body portion, and attached to the outer periphery of the hard main body portion by caulking. Is folded outward and attached to the outer periphery of the lower end of the outer cylinder by caulking, or the other end of this tube is folded back near the opening of the outer cylinder and attached to the upper outer periphery of the rigid main body by caulking, and the fluid injection passage is formed from the fluid inlet. Then, a fluid such as air is injected into the space between the tube and the outer cylinder or into the space between the tubes so that the tube can be expanded inward, and a part to be gripped in the tube before fluid injection is inserted into the tube. Gripping device such as parts, characterized by being configured to grip parts and only the expansion surface of the tube to expand the over drive. 2. A rotating cylinder is mounted on the upper surface of the rigid main body,
2. The gripping device according to claim 1, wherein a rotation mechanism is connected to the rotary cylinder so as to be rotatable. 3. The component according to claim 1, wherein the other end of the tube is attached to an upper portion of the rigid body, and the outer cylinder is detachably attached to an upper surface of the rigid body. Etc. grasping device. 4. The tube according to claim 1, wherein the other end of the tube is folded back near the opening of the outer tube, and the upper end of the outer tube is attached to the upper outer periphery of the hard main body by caulking. Device for gripping parts. 5. A plurality of gripping devices according to claim 2 are installed in parallel, adjacent outer cylinders are brought close to each other so as not to be in contact with each other, and the whole can be moved vertically and horizontally. Device for gripping parts.