JPH0740156A - Tool adapter - Google Patents

Abstract

PURPOSE:To prevent the inclination on the tool placing board of a tool adapter for assembly robot. CONSTITUTION:A tool adapter has a tool plate 101 which has the first positioning plane 111 on the upper surface and has a clamp hole 102 which has an opened port part on the first positioning plate 111 and has a space wider than the opened port part inside, and has a projection part 110 which has the first clamping plane 108 on the downardly aslant plane in the clamping hole 102 and a planary tool installation plane 109 on the opposite side to the first positioning plane 111. Further, a pair of clampers 103 which is positioned at the lower part of the tool plate 101 and is constituted so that the top edge part 104 is set in the clamp hole 102 and the outward bent first clamp 105 on the edge surface on the opposite surface to the top edge part 104, and arranged in a swingable manner around a fulcrum 106, and a spring 107 arranged between a pair of clampers 103 and the tool plate 101 so that the first clamp 105 always projected outward from the side surface of the projection part 110.

Description

Detailed Description of the Invention

[0001]

FIELD OF THE INVENTION The present invention relates to a tool adapter,
In particular, it relates to a tool adapter used in a tool changing device for an assembly robot.

[0002]

2. Description of the Related Art FIG. 5 is a front view showing a conventional tool adapter, and FIG. 6 is a view taken along the line BB of FIG. Referring to FIGS. 5 and 6, a conventional tool adapter has a flat first positioning surface 206 on an upper surface thereof, and an opening in the first positioning surface 206, and a clamp hole 202 having a space wider than the opening therein. And has a downwardly sloping first clamp surface 203 in the clamp hole 202 and a flat tool mounting surface 20 on the side opposite to the first positioning surface 206.
It is composed of a tool plate 201 having a convex portion 204 having 5.

Next, the operation of the conventional tool adapter will be described. The conventional tool adapter has a tool mounting surface 205
With the tool 112 attached to the tool plate 201
The convex portion 204 is placed in a state of being aligned with the concave portion 151 of the tool holder 150. The robot hand 125 holds the second claw 122 of the robot-side adapter 120 in a state where the second claw 122 is closed in the clamp hole 2 of the tool plate 201.
Insert in 02. After the insertion, the air chuck 121 opens the second claw 122 so that the second clamp surface 123 of the upward slope of the second claw 122 and the first clamp surface 203 of the tool plate 201 come into close contact with each other and the tool plate 20.
1st positioning surface 206 and robot side adapter 120
The second positioning surface 124 of the tool plate 20
1 is fixed to the robot side adapter 120. After fixing, the tool plate 201 is lifted from the tool holder 150 by the robot hand 125.

[0004]

In this conventional tool adapter, when the tool adapter is placed on the tool holder, only the convex portion of the tool adapter and the concave portion of the tool holder are placed together, and therefore the tool of the tool adapter is used. When the tool is mounted on the mounting surface in a biased position, the tool adapter tilts on the tool holder and the robot tool may not be replaced because the clamp claw cannot be inserted into the tool adapter clamp hole on the robot adapter base. .

[0005]

A tool adapter according to the present invention has a clamp hole having a flat first positioning surface on the upper surface thereof, an opening in the first positioning surface, and a space wider than the opening inside. A tool plate having a downwardly inclined first clamping surface in the clamping hole and having a flat tool mounting surface opposite the first positioning surface; and a lower portion of the tool plate. A pair of clampers, each having a tip portion in the clamp hole and having an outwardly bent first pawl on an end surface opposite to the tip portion, and swingably arranged by a fulcrum, and the first pawl are always A spring disposed between the pair of clampers and the tool plate so as to extend outward from the side surface of the convex portion

DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, the present invention will be described with reference to the drawings. FIG. 1 is a front view showing an embodiment of the present invention.
FIG. 2 is a view on arrow AA of FIG. 1. Referring to FIG. 1 and FIG. 2, in the tool adapter of this embodiment, the tool plate 101 has a flat first positioning surface 111 on the upper surface thereof, an opening is formed in the first positioning surface 111, and a space wider than the opening is formed inside. And a convex portion 110 having a downwardly inclined first clamp surface 108 in the clamp hole 102 and having a flat tool mounting surface 109 on the side opposite to the first positioning surface 111. The pair of clampers 103 is located under the tool plate 101, has a tip portion 104 in the clamp hole 102, has a tip portion 104 and a first pawl 105 which is bent outward, and swings by a fulcrum 106. It is arranged to be movable. In the spring 107, the first claw 105 is always the convex portion 1
It is arranged between the pair of clampers 103 and the tool plate 101 so as to extend outward from the ten side surfaces.

FIG. 3 shows a state before the embodiment shown in FIG. 1 is gripped by the robot side adapter. The operation of this embodiment will be described with reference to FIG. 3 together with FIG. The tool adapter of this embodiment is placed with the tool 112 mounted on the tool mounting surface 109 and the projection 110 of the tool plate 101 aligned with the recess 151 of the tool holder 150. At this time, the first claws 105 of the pair of clampers 103 are made to move by the spring 107 to the tool plate 1
No. 01 protrudes from the side surface of the convex portion 110 and is in close contact with the lower surface of the tool holder 150. The robot hand 125 inserts the second claw 122 of the robot side adapter 120 into the clamp hole 102 of the tool plate 101 with the second claw 122 closed.

FIG. 4 is a view showing a state in which this embodiment shown in FIG. 1 is gripped by the robot side adapter. Referring to FIG. 4, after the insertion, the second chuck 12 is pressed by the air chuck 121.
2 of the upward slope of the second pawl 122 by opening 2
The clamp surface 123 and the first clamp surface 108 of the tool plate 101 are in close contact with each other, the first positioning surface 111 of the tool plate 101 and the second positioning surface 124 of the robot side adapter 120 are in close contact, and the tool plate 101 is in contact with the robot side adapter 120. Fixed. At this time, the tip portions 104 of the pair of clampers 103 in the clamp holes 102 are pushed by the second claws 122 of the robot side adapter 120, so that the pair of clampers 103 support the fulcrum 106.
The first claw 105 swings around and is separated from the lower surface of the tool holder 150 and is housed in the convex portion of the tool plate 101. After this, the robot hand 125 uses the tool plate 1
01 is lifted from the tool holder 150.

[0008]

As described above, according to the present invention,
It is located at the bottom of the tool plate, the tip is inside the clamp hole, and the end opposite to the tip is bent outwardly.
A pair of clampers that have claws and are swingably arranged by a fulcrum, and a spring that is arranged between the pair of clampers and the tool plate so that the first claws always come out from the side surface of the convex portion. By including the tool, even if the tool is attached to the tool mounting surface of the tool adapter at a biased position, the tool adapter does not tilt on the tool holder and the tool exchange of the robot can be stably performed.

[Brief description of drawings]

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

FIG. 2 is a view on arrow AA of FIG.

FIG. 3 is a diagram showing a state before this embodiment is gripped by a robot side adapter.

FIG. 4 is a diagram showing a state in which this embodiment is gripped by a robot side adapter.

FIG. 5 is a front view showing a conventional tool adapter.

FIG. 6 is a view taken along the line BB of FIG.

[Explanation of symbols]

 101 Tool Plate 102 Clamping Hole 103 Clamper 104 Tip Part 105 First Claw 106 Support Point 107 Spring 108 First Clamping Surface 109 Tool Mounting Surface 110 Convex Part 111 First Positioning Surface 112 Tool 120 Robot Side Adapter 121 Air Chuck 122 Second Claw 123 Second clamp surface 124 Second positioning surface 125 Robot hand 150 Tool stand 151 Recess

Claims (1)

[Claims] 1. A downward sloping surface having a flat first positioning surface on the upper surface thereof, an opening in the first positioning surface, and a clamp hole having a space larger than the opening inside, and being in the clamp hole. A tool plate having a first clamp surface and a convex portion having a flat tool mounting surface on the side opposite to the first positioning surface; and a tip portion at a lower portion of the tool plate, the tip portion being in the clamp hole, and the tip portion. First bent outward on the end face opposite the part
A pair of clampers that have claws and are swingably arranged by a fulcrum, and are arranged between the pair of clampers and the tool plate so that the first claws always come out from the side surface of the convex portion. A tool adapter comprising: