JPH04304912A - Clipper installation device - Google Patents

Abstract

PURPOSE:To automatically install on a round bar a clipper which transmits a rotation force to the round bar whose outer face is to be ground. CONSTITUTION:A holding mechanism 560 holding a clipper 200 is provided on a table 510. The holding mechanism 560 is driven by a rotation mechanism in order to rotate the slipper 200 in the peripheral direction. A round bar 100 to which the clipper 200 is installed is supported on the table 510 in the state of the end being inserted into the clipper 200. A lever 220 of the clipper 200 abuts on the pin 571 of a restraint mechanism 570 provided at the front part of the holding mechanism 560 with the holding mechanism 560 being rotated in the state of the clipper 200 being held. Consequently, the clipper 200 is installed on a round bar 100 with the lever 220 being tilted in a fixed state.

Description

[Detailed description of the invention]

0001

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a clipper attachment device for attaching a clipper to a round bar, which is used to transmit rotational force to a round bar that undergoes external grinding or the like.

0002

2. Description of the Related Art When a round bar is subjected to external surface grinding, the round bar is usually rotated while being supported from both ends by a pair of center pins. However, when supported by a center pin, sufficient rotational force may not be transmitted to the round bar material in some cases. A jig used in such a case is a clipper 200 shown in FIG.
It is.

[0003] The clipper 200 is generally called a clipper. This includes a ring 210 that is fitted onto the outer surface of the round bar 100, and a lever 220 that is attached to the ring 210. The lever 220 has a cam portion 221 whose base end is eccentrically supported by the ring 210 .
The state where it stands up on the outside of the ring 210 is the open state, and the state where it falls toward the ring 210 is the fixed state. Then, the lever 220 is raised to the open state, the round bar 100 is inserted into the ring 210, and in this state, the lever 220 is tilted from the open state to the fixed state. As a result, the lever 220 and the centering pin 230
, 230 , the ring 210 is fixed concentrically to the outer surface of the round bar 100 , and the clipper 200 is attached to the round bar 100 . Rotational force is transmitted to the round bar 100 to which the clipper 200 is attached when the round bar 100 is subjected to external grinding through the clipper 200 .

0004

[Problem to be solved by the invention] Conventionally, this clipper 2
00 was attached to the round bar 100 by hand. Even when a work robot is used to automatically feed a large number of round bars 100 to an external grinding device, the clipper 200
The mounting is done by hand and requires a large number of round bars 10
The extremely inefficient practice of attaching 200 clippers to each vehicle was extremely inefficient.

The present invention was devised in view of the above circumstances, and an object of the present invention is to provide a clipper mounting device for automatically mounting a clipper on a round bar material.

[0006]

[Means for Solving the Problems] The clipper mounting device according to the present invention is fitted onto the outer surface of a round bar in order to transmit rotational force to the bar, and the lever is tilted sideways from an outwardly erected state. This is an automatic clipper attachment device that is fixed to a round bar by a table, on which the round bar to which the clipper is attached is placed almost horizontally, and an end of the round bar placed on the table. a holding mechanism that holds the clipper so that the clipper can be fitted externally; a support mechanism that rotatably supports the holding mechanism so that the clipper held by the holding mechanism rotates in the circumferential direction; A rotation mechanism that rotates the holding mechanism, and a lever fixed to the outside of the clipper held by the holding mechanism, which stops the lever of the clipper that rotates as the holding mechanism rotates, and tilts the lever to a fixed state. It is equipped with a restraining mechanism to prevent

[0007]

Embodiments Hereinafter, embodiments of the present invention will be described with reference to the drawings. 1 to 6 show an example of the clipper mounting device according to the present invention, FIG. 1 is a partially cutaway side view of the main part, FIG. 2 is a partially cutaway plan view of the main part, and FIG. 3 is a front view of the main part. , FIG. 4 is a front view showing another state of use, FIG. 5 is a side view showing the overall structure, and FIG. 6 is a layout diagram of the external cutting equipment showing an example of use.

The clipper mounting device is used in the external cutting equipment shown in FIG. This external surface cutting equipment is equipped with a support stand 300 that supports a large number of round bars 100 side by side. The round bar 100 on the support stand 300 is the support stand 300
The work robot 400 traveling on the rail 410 laid along the rail 410 carries the clipper 200 into the clipper mounting device 500 and mounts the clipper 200 thereon. Clipper 20
The round bar 100 with 0 attached is again handled by the work robot 400 and transferred to the outer surface grinding device 600.
sent to undergo external grinding.

As shown in FIG. 5, the clipper mounting device 500 includes a table 510 on which a round bar 100 is placed.
It is equipped with The table 510 horizontally supports the round bar 100 by a pair of V blocks 511. The distance between the pair of V blocks 511 is adjusted according to the length of the round bar 100. On the table 510, there is a round bar 1
A mounting machine 520 for mounting the clipper 200 on the clipper 200 is installed.

As shown in FIGS. 1 and 2, the mounting machine 520 includes a support mechanism 540 housed in a case 530.
It is equipped with The support mechanism 540 includes a horizontal support shaft 54
1 is rotatably supported by a bearing 542. The support shaft 541 is a holding mechanism 5 that holds the clipper 200.
60 is supported on the distal end side and rotated by a rotation mechanism 550 to rotate a holding mechanism 560. Rotating mechanism 550
consists of a rotary actuator, with a bearing 542
It is attached to the proximal surface of the

The holding mechanism 560 includes a pair of parallel arms 5
61,561. Parallel arms 561, 56
1 performs symmetrical motion in a direction perpendicular to the center line of the support shaft 541 . parallel arm 5
The drive unit 562 of 61 and 561 is a support shaft 541
is combined with The tips of the parallel arms 561 and 561 are connected to the circular opening 5 provided in the front of the case 530.
31 protrudes from the case 530, and the protruding portion has gripping claws 563, 56 facing each other.
3 is installed. And this holding mechanism 560
The clipper 200 is inserted between the gripping claws 563 and 563.
is clamped concentrically with respect to the axis of the support shaft 541, and further, the clipper 200 is rotated in the circumferential direction as the rotation mechanism 550 rotates.

[0012] The mounting machine 520 also has a case 530.
It is equipped with a restraining mechanism 570 attached to the front side of the vehicle. The restraining mechanism 570 has an opening 531 as shown in FIG.
It has a horizontal pin 571 that protrudes toward the front side from the peripheral edge. The pin 571 is the gripping claw 5 of the holding mechanism 560
Clipper 2 that is clamped between 63 and 563 and rotates
00 and prevents lever 220 from turning, thereby tilting lever 220 to a fixed state.

[0013] Round bar material 10 to which the clipper 200 is attached
0 are the gripping claws 563 and 563 of the holding mechanism 560
It is supported concentrically on a table 510 with the clipper 200 clamped therebetween, and its end is inserted into the clipper 200 .

Note that the gripping claws 563, 563 may be replaced with ones of different lengths depending on the size of the clipper 200. The fixing position of the stopping mechanism 570 is also adjusted in the radial direction of the opening 531 depending on the size of the clipper 200 . 572 is a support plate for the pin 571 , 573 is a guide hole provided in the support plate 572 , and 574 is inserted into the guide hole 573 so that the support plate 572 is connected to the opening 531 .
It is a pin-shaped guide that guides in the radial direction.

To mount the clipper 200 in the clipper mount device 500 configured as described above, first, the parallel arms 561, 561 are driven in the direction in which the gripping claws 563, 563 of the holding mechanism 560 are opened. In this state, the clipper 200 is positioned between the gripping claws 563, 563 of the holding mechanism 560, and the parallel arms 561, 561 are driven to clamp it. Gripping claw 56
3,563 The clipper 200 clamped between
It is in a concentric state with respect to the support shaft 541 of the support mechanism 540, and its lever 220 stands in an open state.

[0016] The clipper 2 is inserted between the gripping claws 563 and 563.
00 is clamped, the work robot 400 carries the round bar 100 from above the support stand 300 onto the table 510. The round bar 100 placed on the table 510 is concentric with the clipper 200 , and its end is inserted into the clipper 200 .

When the round bar 100 and the clipper 200 are combined on the table 510 in this manner, the holding mechanism 560 is rotated by the rotation mechanism 550 so that the clipper 200 rotates in the direction of the arrow (solid line) in FIG. is rotated. The direction of rotation of the clipper 200 is determined by its lever 2.
The direction is opposite to the direction in which 20 tilts to the fixed state. When the clipper 200 rotates, its lever 220
rotates and hits the pin 571 of the stop mechanism 570. As the clipper 200 continues to rotate even after the lever 220 hits the pin 571, the lever 220
falls in the direction shown by the arrow (two-dot chain line) in FIG. 3 and becomes fixed.

When the clipper 200 is fixed to the round bar 100, the holding mechanism 560 stops rotating, and the gripping claws 5
63, 563 opens. The round bar 100 with the clipper 200 attached thereto is sent by the work robot 400 to an external grinding device 600 to undergo external grinding.

Note that FIGS. 1 to 3 show the case where the round bar 100 has a large diameter. When the round bar 100 has a small diameter, as shown in FIG. 4, the gripping claws 563,
563 is replaced with a narrower and longer one, and the stop mechanism 570 is moved toward the center of the opening 531.

The clipper mounting device according to the present invention can also be used as a clipper removing device for removing the clipper 200 from the round bar 100 by operating in the reverse order to the above.

[0021]

As described above, in the case of the clipper mounting device according to the present invention, the clipper is held by the holding mechanism and rotates in the circumferential direction, while the lever of the rotating clipper is stopped by the stopping mechanism and tilted to a fixed state. By being
The clipper is automatically attached to the round bar material. This results in
The effort of attaching the clipper can be saved, and the attachment of the clipper can be carried out efficiently, especially when combined with a working robot that supplies the clipper to the holding mechanism and the round bar onto the table. Therefore, the workability in automatic external cutting of round bar materials using a working robot is further improved. In addition, since the clipper is rotated to tilt the clipper lever, the lever drive mechanism is simpler than a structure in which the clipper is fixed and the lever is tilted, resulting in a smaller device and improved reliability. .

[Brief explanation of drawings]

FIG. 1 is a partially cutaway side view showing the main parts of a clipper mounting device according to the present invention.

FIG. 2 is a partially cutaway plan view showing the main parts of the clipper mounting device according to the present invention.

FIG. 3 is a front view showing the main parts of the clipper mounting device according to the present invention.

FIG. 4 is a front view showing another state of use of the clipper mounting device according to the present invention.

FIG. 5 is a side view showing the overall structure of the clipper mounting device according to the present invention.

FIG. 6 is a layout diagram of external cutting equipment using the clipper mounting device according to the present invention.

FIG. 7 is a front view showing the structure of the clipper.

[Explanation of symbols]

100 Round bar material 200 Clipper 220 Lever 500 Clipper attachment device 510 Table 540 Support mechanism 550 Rotation mechanism 560 Holding mechanism 570 Stopping mechanism

Claims (2)

[Claims] Claim 1. An automatic clipper attachment device that is fitted onto the outer surface of a round bar in order to transmit rotational force to the bar, and is fixed to the round bar by tilting the lever sideways from an outwardly erected state. A table on which a round bar to which a clipper is attached is placed substantially horizontally, and a holding mechanism that holds the clipper so as to fit the clipper onto the end of the round bar placed on the table. a support mechanism that rotatably supports the holding mechanism so that the clipper held by the holding mechanism rotates in the circumferential direction; a rotation mechanism that rotates the holding mechanism supported by the support mechanism; and a rotation mechanism that rotates the holding mechanism supported by the support mechanism; the clipper, the clipper having a stop mechanism fixed to the outside of the clipper, which stops a lever of the clipper that rotates as the holding mechanism rotates, and tilts the lever to a fixed state. Mounting device. 2. The clipper mounting device according to claim 1, wherein the clipper mounting device is combined with a working robot that supplies the clipper to the holding mechanism and supplies the round bar onto the table.