JP2565290B2 - Automatic attachment / detachment device - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an automatic attaching / detaching device,
In particular, it relates to an automatic attachment / detachment device for automatically attaching / detaching a hand, a tool, or the like attached to an industrial robot or the like.

[0002]

2. Description of the Related Art A conventional automatic attaching / detaching device is disclosed in Japanese Patent Laid-Open No. 4-36.
As shown in the cross-sectional view of FIG. 2 in Japanese Patent No. 0782, a pneumatic cylinder portion 22 is provided inside the apparatus main body 21, and a piston portion 2 that slides on the pneumatic cylinder portion 22 is provided.
3, a compression spring 24 that constantly pushes the piston portion 23 upward, a port 25 that supplies compressed air to the cylinder portion 22, and a pair of opposed tabs 26 that reciprocate in the direction perpendicular to the axial direction. A tension spring 27 connected to the pair of claws 26 in a closing direction, a pin 28 projecting from the lower part of the apparatus main body 21, a connection part having a catch for the claw 26 and a hole for receiving the pin 28. And 29.

The operation of this conventional example will be described. Port 25
More compressed air is supplied to push down the piston portion 23, and the piston 23 moves the claw 26 in the direction perpendicular to the axial direction to open it. Next, the pin 28 of the device main body 21 and the hole of the connecting portion 29 are aligned and connected, and when compressed air is removed from the port 25, the piston portion 23 is moved upward by the compression spring 24 and the claw 26 is closed by the tension spring 27. Make a connection.

[0004]

This conventional automatic attaching / detaching device has a problem in that the claw for connection and fixing can be driven only by the compressed air, so that it cannot be detached unless the compressed air is supplied. .

[0005]

An automatic attachment / detachment device of the present invention is provided with a fluid pressure cylinder in the main body of the device, and a pair of opposed claws are formed in a direction perpendicular to the axial direction by reciprocating movement of a piston of the fluid pressure cylinder portion. an automatic attachment apparatus to attach and detach the connection portion by reciprocating, who closes the claws of the pair
The elastic member connected in the opposite direction and the protrusion,
By hooking on the protrusion,
A connection unit connected, projecting vital before the apparatus main body side
Slides vital said pawl in a direction orthogonal to the serial direction, characterized in that it comprises a shaft for reciprocating.

The automatic attachment / detachment device of the present invention is provided with a fluid pressure cylinder portion inside the apparatus main body, a piston portion sliding on the fluid pressure cylinder portion, a compression spring for constantly pushing the piston portion upward, and A port for supplying fluid to the cylinder portion, a pair of opposed claws that reciprocate in the direction perpendicular to the axial direction, a tension spring connected in the direction to close the pair of claws, and a protrusion to the lower part of the device body. A pin, a connecting portion having a hooked portion of the claw and having a hole into which the pin is inserted, a shaft protruding to the side surface of the apparatus main body, sliding in the direction perpendicular to the axial direction, and reciprocating the claw, and a shaft outside It is equipped with a compression spring that pushes against.

[0007]

The present invention will be described below with reference to the drawings. FIG. 1 is a sectional view of an embodiment of the present invention.

A pneumatic cylinder section 2 is provided inside the apparatus main body 1, and a piston section 3 that slides on the pneumatic cylinder section 2 is provided.
A compression spring 4 that constantly pushes the piston portion 3 upward, a port 5 that supplies compressed air to the cylinder portion 2, a pair of opposed claws 6 that reciprocate in the direction perpendicular to the axial direction, A tension spring 7 connected to the pair of claws 6 in the closing direction and a pin 8 protruding to the lower part of the apparatus main body 1.
A connecting portion 9 having a hooked portion of the claw 6 and a hole into which the pin 8 is inserted; a shaft projecting to the side surface of the apparatus main body 1 and sliding in a direction perpendicular to the axial direction and reciprocating the claw 6; 10 and a compression spring 11 that pushes the shaft 10 outward.

Next, the operation of this embodiment will be described. Compressed air is supplied from the port 5 to push the piston portion 3 downward, and the piston 5 moves the claw 6 in the direction perpendicular to the axial direction to open it. Next, the pin 8 of the apparatus main body 1 and the hole of the connecting portion 9 are aligned and connected, and when compressed air is removed from the port 5, the piston portion 3 is moved upward by the compression spring 4, and the claw 6 is closed by the tension spring 7. Make a connection.

The shaft 10 does not need to be supplied with compressed air.
By pressing, the claw 6 can be opened and the connecting portion 9 can be released.

[0011]

As described above, according to the present invention, the connection claw can be released from the outside, so that the connection can be released even if the supply of the fluid for driving the cylinder inside the apparatus main body is stopped. Has the effect.

[Brief description of drawings]

FIG. 1 is a sectional view of an embodiment of the present invention.

FIG. 2 is a sectional view of a conventional example.

[Explanation of symbols]

 1 Device body 2 Cylinder part 3 Piston part 4 Compression spring 5 Port 6 Claw 7 Extension spring 8 Pin 9 Connection part 10 Shaft 11 Compression spring

Claims (2)

(57) [Claims] 1. A fluid pressure cylinder is provided in a main body of the apparatus, and a pair of pairs is formed by reciprocating movement of a piston of the fluid pressure cylinder portion .
Connect the facing claws back and forth in the direction perpendicular to the axial direction.
An automatic attachment / detachment device that attaches and detaches to and from an elastic member that is connected to the pair of claws in a closing direction, and a protrusion, and hooks the claw on the protrusion.
The connecting part connected to the device body, and the one protruding to the side surface of the device body and orthogonal to the axial direction.
A shaft that slides in the same direction and reciprocates the claws
Automatic attachment apparatus, characterized in that it comprises and. 2. A fluid pressure cylinder portion is provided inside the apparatus main body, a piston portion sliding on the fluid pressure cylinder portion, a compression spring for constantly pushing the piston portion upward, and a fluid are supplied to the cylinder portion. Port, a pair of opposed claws that reciprocate in the direction perpendicular to the axial direction, a tension spring connected in the direction to close the pair of claws, a pin protruding to the lower part of the device body, and a catch of the claw. A connecting portion having a hole and a hole into which the pin is inserted, a shaft protruding toward the apparatus main body side, sliding in the direction perpendicular to the axial direction, and reciprocating the claw, and a compression spring pushing the shaft outward. An automatic attachment / detachment device characterized by being provided.