JPH0584686A - Protecting device for soft hand - Google Patents

Abstract

PURPOSE:To provide a protecting device for a soft hand provided in the inside with a duct which can destruct a burr for protecting a tube from the burr and further to remove cutting chips or the like scattered in a press contact part air, when the soft hand is advanced into a unit to be conveyed. CONSTITUTION:In a soft hand provided with a duct in a base body 10 and a tube 19 which can be inflated by injecting air through inside this duct, a protecting device for the soft hand is characterized by providing a tapered chisel 12 in front and bottom parts of a protruding part overhung from an external diameter of the tube, when contracted, in the point end in a tube side of the base body. The protecting device for the soft hand is characterized by applying a duct 14 inserted through the soft hand and connected further to the chisel and to a discharge hole 17 on a surface of the chisel from its inside.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a device for protecting a soft hand tube or the like used to convey a casting or the like.

[0002]

2. Description of the Related Art A soft hand for carrying parts and the like is disclosed in Japanese Patent Laid-Open No. 212089. As shown in FIG. 2A, a conduit 22 is provided in the base body 10, and one end of the base body 10 is an inflatable tube 1 made of rubber or the like.
9 is attached, and from the air supply / exhaust hole 23 of the pipeline 22 to the inner air space 24
The air is introduced into the tube 19 to expand the tube 19 as shown in FIG. 2B, and the expanded surface of the tube 19 presses the parts.

[0003]

In the conventional example shown in FIG. 2, when the transferred object is a casting or the like and has burrs, when the soft hand enters the transferred object, the tube is brought into contact with the burr or the transferred object is transferred to the transferred object. After cutting, cutting chips etc. remain in the pressure contact part,
If adhered, the tube would be damaged when it was expanded and pressed. Therefore, the present invention is capable of destroying the burr in order to protect the tube from the burr when the soft hand enters the transported object, and a pipe line for scattering and removing chips and the like of the pressure contact portion by compressed air. The present invention provides a protective device for a soft hand provided inside.

[0004]

The protective device of the present invention is such that a chisel having a diameter larger than the diameter of the tube at the time of contraction is attached to the tip of the soft hand base on the tube side, and penetrates through the base.
Further, it is provided with a pipe line that communicates with the chisel and extends from the end of the chisel to the exhaust hole on the surface of the chisel.

[0005]

EXAMPLE An example of the present invention will be described with reference to FIG.
The carrier device 4 holds the base body 10. A chisel 12 is attached to one end 11 of the base 10. The conduit 13 is the base 1
0, further communicates with the chisel 12, and an exhaust hole 17 is provided from the terminal end 15 of the conduit 14 in the chisel 12 toward the surface 16 of the chisel. The other end 18 of the pipe line 13 communicates with a compressed air supply source 51 through a pipe 50.

When the soft hand 1 with chisel 12 constructed as described above is inserted into the body 3 to be conveyed by the conveying device 4,
The surface 16 of the chisel 12 and the casting burr 30 come into contact with each other, and the surface 16
Enters while destroying the casting burr 30.

At this time, from the compressed air supply source 51 through the direction switching valve 52, the pipeline 13, the pipeline 14 and the exhaust hole 1 are provided.
Compressed air is discharged through 7. Compressed air is transferred 3
The chips 32 after the cutting process attached to the inner wall 31 of the are scattered and removed.

At this time, when the soft hand 1 enters the transported body 3, the tube 19 at the time of contraction does not come into contact with the casting burr 30 because it is inside the projecting portion 20 of the chisel 12.

Next, when the soft hand 1 is pulled out from the transported object 3, the soft hand 1 is easily pulled out even if it comes into contact with the casting burr 30 bent in the entering direction side of the soft hand 1 due to the taper of the bottom portion 21 of the projecting portion 20. be able to.

According to the present invention, the soft hand 1 does not damage the tube 19 due to the contact between the tube 19 and the casting burr 30 when the transported object 3 enters. Moreover, since the chips 54 after cutting are scattered and removed during expansion and pressure contact of the tube, the tube is not damaged. Therefore, the life of the tube can be extended.

[Brief description of drawings]

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

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

[Explanation of symbols]

 12 chisel 13 pipe 14 pipe 17 exhaust hole 20 protrusion

Claims (2)

[Claims] 1. In a soft hand having a tube inside a base body and having a tube that is inflatable by injecting air through the inside of the base line, a soft hand having a tube-side tip of the base body that is smaller than the outer diameter of the tube when contracted. A protective device for soft hands, characterized by having a chisel with a taper on the front and bottom of the protruding part. 2. The softening according to claim 1, wherein the pipe passes through the soft hand and further communicates with the chisel so as to extend from inside the chisel to an exhaust hole on the surface of the chisel. Hand protection device.