JPS6117792Y2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a positioning device for rectangular parts that are transported along a predetermined path.

2. Description of the Related Art As a positioning device for rectangular parts, the devices shown in FIGS. 1 and 2 are known. That is, a positioning piece 2 is fixed to a pair of opposing cylinders 1, respectively. A V-shaped groove 3 is formed on the opposite surface of the piece 2 and is inclined so that the upper end thereof protrudes. Therefore, when the part 4 is sandwiched and pressed between the pieces 2, the part 4 is positioned in the horizontal direction by the groove 3, and at the same time is pushed downward by the slope of the groove 3, preventing it from floating. It is also possible to position the parts in the thickness direction.

However, in the above positioning device, the cylinder 1
The pieces 2 must be arranged to face each other across the parts transfer path, which not only increases the size of the apparatus itself but also restricts the arrangement of other processing equipment. Furthermore, since two cylinders 1 are used, there are drawbacks such as the positioning of parts being uneven and accurate positioning being impossible unless the cylinders 1 are operated at exactly the same time.

SUMMARY OF THE INVENTION An object of the present invention is to provide a positioning device for rectangular parts that eliminates the above-mentioned drawbacks of the prior art and allows accurate positioning using a single drive source.

In order to achieve the above object, in the present invention, a claw that clamps and positions a component from the direction of transport, and an arm that pushes the component from above and in a direction perpendicular to the direction of transport are combined into one piece. It is characterized in that it is operated to position the parts in a fixed position.

An embodiment of the present invention will be described below with reference to the drawings. 3 and 4 show an embodiment of the present invention, in which parts 4 are transported along a pair of rails 5. In FIGS. A rotating base 7 having a protruding shaft 6 so that its axis is parallel to the rail 5 is biased by a spring 8 so that the rail 5 side becomes higher. On this rotating base 7,
A U-shaped guide 9 is fixed. A claw 12 is rotatably supported on a pair of hinge pins 11 that are implanted in the rotation base 7 so as to be located on the sides of the guide 9. This nail 12
consists of a grip part extending above the rail 5 from the hinge pin 11 and a drive part extending from the hinge pin 11 toward the center of the rotation base 7. A pin 13 is installed on the top surface of the drive unit, and a spring 14
is applied, biasing the grip in the direction of opening.
Further, a pin 15 is implanted on the side surface of the drive section, and this pin 15 slidably passes through the guide 9. An arm 16 is slidably supported in a groove formed in the rotation base 7 along the side surface of the guide 9. One end of this arm 16 extends above the rail 5, and a part 4 is attached to the tip.
A groove 17 is formed on the other end.
is formed. A rail 19 is rotatably supported by a hinge pin 18 implanted in the rotation base 7 so as to be located inside the arm 16 . This lever 19 has one end connected to the guide 9
The arm 16 protrudes upward, and its other end extends across the groove 17 of the arm 16. cylinder 20
is the rail 5 with the rotating base 7 in between.
It is placed in a position opposite to. A piece 21 is fixed to this cylinder 20. This piece 21
consists of leg portions 22 that are slidably fitted into the central groove of the guide 5, and wing portions 23 that extend parallel to both ends of the opening of the guide 5. A cam surface 24 is formed at the tip of the leg portion 22, with which the pin 15 comes into contact. Further, the lever 19 is attached to the wing portion 23.
A pin 25 facing the arm 16 and one end of a leaf spring 26 in contact with the end of the arm 16 are fixed.

In the above configuration, when the component 4 is fed along the rail 5 with the piece 21 retracted toward the cylinder 21 side, the cylinder 21 is actuated and the piece 21
forward toward the rail 5 side. Then, piece 2
In order to push the rotating base 7 with the bottom surface of the tip of the spring 8
The rotating base 7 rotates against the tension of the rail 5.
The side ends are lowered. At this time, the tip of the arm 16 pushed by the leaf spring 26 protrudes beyond the component 4 on the rail 5. Then, the rotation of the rotation base 7 pushes the component 4 toward the rail 5 from above. When piece 21 moves further forward, pin 2
5 pushes the rail 19, rotates the rail 19, moves the arm 16 backward by the rail 19, hooks the component 4 with the tip of the arm 16, and attaches it to the end surface of the rail 5 on the rotating base 7 side. At the same time, the pin 15 is pushed by the cam surface 24 of the leg portion 22, and the claw 12 is rotated to clamp the component 4 from the front and rear in the transport direction. In this way, parts can be accurately positioned using one cylinder 20.

In addition, when releasing part 4, simply move piece 21.
By retracting the part 4, the part 4 can be easily released without changing its position.

As described above, according to the present invention, the arm that holds the component from above and presses it in a direction perpendicular to the transfer direction, and the claws that clamp the component from the front and back of the transfer direction are integrated into a single cylinder. Since it is driven by connected pieces, parts can be accurately positioned from one direction using a single cylinder. Further, the positioning device can be downsized, and restrictions on the arrangement of other processing devices can be greatly relaxed.

[Brief explanation of the drawing]

Fig. 1 is a plan view showing an example of a conventional positioning device, Fig. 2 is a side sectional view of Fig. 1, Fig. 3 is a plan view of the positioning device according to the present invention, and Fig. 4 is a side view of Fig. 3. It is. 6...Axis, 7...Rotation base, 8...Spring, 9
...Guide, 11...Hinge pin, 12...Claw,
13...Pin, 14...Spring, 15...Pin, 1
6... Arm, 17... Groove, 18... Hinge pin, 19... Lever, 20... Cylinder, 21...
...piece, 22...leg, 23...wing, 24...cam surface, 25...pin, 26...leaf spring.

Claims (1)

[Scope of utility model registration request] It is rotatably supported along a rail that regulates the path of the component about an axis parallel to the rail,
In addition, there is a rotating base whose end on the rail side is always biased to be higher, and a substantially U-shaped guide fixed to the rotating base so that the center part is on the rail side and parallel to the rail. a member and the rotating base;
It is rotatably supported in a plane parallel to the rotating base around hinge pins erected on both sides of the guide member, with one end protruding onto the rail and the other end at the center of the rotating base. a pair of pawls that protrude toward the rail and are biased so that the ends on the rail side are expanded; a pair of arms having one end protruding above the rail, and a hinge pin embedded in the rotating base so as to be located inside the arms; a lever having one end slidably crossing the arm and protruding onto the guide member; a cylinder disposed to face the rail across the rotation base; a leg portion coupled to the base so as to be positioned above the base and slidably fitting into the central groove of the guide member; and a wing portion extending parallel to both ends of the opening of the guide member;
A T-shaped piece having a cam portion formed at the tip of the leg portion to rotate the pawl so that the rail side of the pawl closes, and a T-shaped piece fixed to the wing portion of this piece, one end of which is connected to the end of the arm on the rotation base side. 1. A positioning device for rectangular parts, characterized in that a leaf spring is always in contact with the piece, and a pin is implanted in the wing part of the piece so as to face the lever.