JPS61192447A - Angle dividing apparatus - Google Patents

Abstract

PURPOSE:To permit the dividing in the normal and reverse directions by allowing a rotary member and a dividing disc having an angle dividing groove to be separated and allowing a work to be simply installed without executing positioning, in an angle dividing apparatus having the dividing disc and a dividing pin. CONSTITUTION:A sprocket 9 and a transmission disc 8b are installed onto a rotary shaft 8a, and a dividing disc 13 having a connecting mechanism 15 is installed between the sprocket 9 and the transmission disc 8b. The dividing disc 13 and the transmission disc 8b are connected and disconnected by a wedge 15b and a screw 15c which are set between the outer peripheral inclined surface 81 of the transmission disc 8b and the side surface 151 of an installation board 15a. A work is installed onto the top edge of the rotary shaft 8a, an the sprocket 9 is revolved through a chain 12 by a motor 10, and the standard point of the work is detected, and further, the rotary shaft 8a is revolved by connecting the dividing disc 13 and the transmission disc 8b by the wedge 15b, and dividing is performed by the dividing disc 13.

Description

[Detailed Description of the Invention] [Field of Industrial Application] The present invention comprises an indexing disk having an angular indexing groove on its outer periphery, and an indexing pin removably engaged with the groove of the indexing disk. The present invention relates to an angle indexing device having the following.

[Conventional technology]

Figure 3 shows, for example, the magazine ``Automation Technology J (March issue 198 P.
, 65 is a front view showing the conventional angle indexing device shown in FIG. 6). In the figure, (1) is a rack, (2) is a rack, (1) is an operating cylinder, (3) is an indexing cylinder,
(4) is a binion, (5) is an angle index groove (5a) on the outer periphery
(6) is an indexing pin that removably engages with the angle indexing groove (5a); (7) is a one-way clutch that rotates the indexing disk (5) in only one direction. It is.

The conventional angle indexing device is constructed as described above, and after attaching the workpiece to the indexing disk (5), the indexing pin (6) is removed from the groove (5a) by the cylinder [3], and the rack ( 1)
is advanced by the cylinder (2J) to rotate the pinion (4) in the direction of the arrow.At the same time as the pinion (4) rotates, the index disk (5) also rotates in the direction of the arrow via the one-way clutch (7). .The amount of movement of the rack (1) is determined by the index disc (5
] is set so that it rotates close to the angle you want to calculate. Next, insert the index pin (6) into the groove (5a) of the index disk (5) and position it to complete the indexing.After that, return the rack (1) and move to the next position. Prepare for indexing.When returning the rack (1), the pinion (4) reverses, but the one-way clutch (7) built into the pinion (4)
) works and the index disk (5) does not rotate.

As the rack (1) moves forward and backward repeatedly in this manner, the indexing disk (5) rotates in a constant direction by a constant angle, so that the angle of the workpiece can be indexed. In this case, the indexing angle of the workpiece is equal to the interval between the grooves (5a), so it is 90 degrees.

[Problem that the invention seeks to solve]

In the conventional angle indexing device as described above, when attaching the workpiece to the indexing disk (5), the reference point of the workpiece is set to the indexing disk (5).
If the workpiece is not aligned with the groove (5a) of 5], accurate angle indexing cannot be performed, so there is a problem in that it takes time and effort to attach the workpiece. Also one-way clutch (7)
There was a problem that indexing could only be done in one direction because it was built in.

This invention was made to solve these problems, and provides an angle indexing device that allows workpieces to be easily mounted without alignment, and that can index angles in both forward and reverse directions. The purpose is to provide.

[Means for solving problems]

The angle indexing device according to the present invention includes a rotating member for attaching a workpiece that is rotated in forward and reverse directions, and a coupling mechanism that releasably couples the rotating member to an indexing disk.

[Effect]

In this invention, the reference point can be determined by attaching the workpiece to the rotating member and rotating it with a motor, and after the reference point setting is completed, the rotating member is connected to the indexing disk using the coupling mechanism to determine the angle and index. I can do it. At this time, the indexing disk can be rotated in either the forward or reverse direction by the motor, so that angle indexing can be performed in either the forward or reverse direction.

〔Example〕

Figures 1 and 2 show an embodiment of the present invention. In the figures, (8) is a rotating member for mounting a workpiece, and a rotating shaft (8a) to which a sprocket (9) is fixed, and this rotating shaft. (8a) and a transmission disk (8b) attached to the end. (10) is a motor that uses a sprocket (11) to rotate the rotating shaft (8a) in the forward and reverse directions via a chain (12); (13) is an indexing disk having an angle indexing groove (13a) on the outer periphery; It is rotatably inserted into the rotating shaft (8a) by a bearing (14). (15) is a coupling mechanism that releasably couples the rotating member (8) and the index disk (13), and includes a mounting base (15a) fixed to the side surface of the index disc (13), and this mounting base. The grooved side surface (151) of (15a) and the transmission disk (8
The wedge (15) inserted between the outer peripheral slope (81) of b)
b) and the mounting base (15 &) and the wedge (15 &).
b) and an operating screw (150) for engaging and disengaging. In addition, (3) in the figure.

(6) is the same as the conventional one.

In the angle indexing device configured as described above, when a workpiece is attached to the tip of the rotary shaft (8a), the motor (10) is driven to determine the reference point of the workpiece, and the rotary shaft (8&) is rotated. At this time, the wedge (15b) and the transmission disc (8b)
) and the outer peripheral slope (81), and the index pin (6) is inserted into the groove (13&) of the index disk (13), and the index disk (13) It shall not rotate. In this way, the reference point of the workpiece can be easily determined, and there is no need for positioning when installing the workpiece. After determining the reference point of the workpiece, move the wedge (15b) to the outer peripheral slope (8) of the transmission disc (8b) using the operating screw (150).
1) to integrate the index disk (13) and the transmission disk (8b) by frictional force. In this state, index pin (6)
After returning ・The rotating shaft (8a) is rotated by the motor (10) to rotate the index disk (13) to a predetermined angle.
For final positioning, move the index pin (6) to the index disc (13).
The indexing angle at this time can be read, for example, by the number of grooves (13a). In the above embodiment, the rotating member (8) is transmitted to the rotating shaft (8a) A disk (8b) is shown, but if the workpiece is attached and it is possible to connect it to the indexing disk (13), a single plate-shaped body or a single rod-shaped body may be used. good. If this rotating member (8) is driven by the motor (10) as in the above embodiment, forward and reverse rotation becomes easy.

Further, in the above embodiment, the coupling mechanism (15) is a wedge (1
5b) was used, but it may be simply pressed with a pressing piece to achieve frictional engagement. The coupling mechanism (15) may be provided on the transmission disk (8b) side and frictionally engaged with the index disk (13). Although the wedge (15b) is shown to be operated manually using the operating handle (150), it may also be driven by a motor.

Furthermore, in the above embodiment, the index disk (13) is connected to the bearing (14).
Although the index disk (13) is shown inserted into the rotating shaft (8a) through the rotating shaft (8a), it does not need to be inserted into the rotating shaft (8a) as long as it is on the same axis as the rotating shaft (8a). good.

Note that if the rotation angle of the rotation axis (8a) is detected with an angle detector or the like, automation after finding the reference point can be achieved.

〔Effect of the invention〕

As explained above, in this invention, the rotating member and the indexing disk are releasably coupled by the coupling mechanism, so that the workpiece can be easily mounted without alignment, and the rotating member can be rotated in the forward and reverse directions. This has the effect of allowing angle indexing in both the forward and reverse directions.

[Brief explanation of drawings]

FIG. 1 is a longitudinal sectional side view showing an embodiment of the present invention, FIG. 2 is a sectional view taken along the line ■--■ in FIG. 1, and FIG. 3 is a front view showing the extraction device. 6) is an index pin, (8) is a rotating member, (
8a) is the rotating shaft, (8b) is the transmission disk, (10) is the motor, (13) is the indexing disk, (13M) is the angle indexing groove, (
-14) is a bearing, (15) is a coupling mechanism, (15a) is a mounting base, (15b) is a wedge, and (150) is an operating screw.0 Note that the same reference numerals in each figure indicate the same or equivalent parts. Agent Patent Attorney Masuo Oiwa Figure 3

Claims (4)

[Claims] (1) A workpiece rotated forward or backward in an angle indexing device having an indexing disk having an angle indexing groove on the outer periphery and an indexing pin releasably engaging with the groove of the indexing disk. An angle indexing device comprising a rotating member for attachment and a coupling mechanism for releasably coupling the rotating member to the indexing disk. (2) Claim 1 in which the rotating member is composed of a rotating shaft for mounting a workpiece and a transmission disk attached to this rotating shaft.
Angle indexing device as described in . (3) a mounting base with a coupling mechanism fixed to the side of the index disk;
Claim 2, comprising: a wedge inserted between the side surface of the mount and the outer circumferential slope of the transmission disk; and an operating screw that is screwed into the mount and engages and disengages the wedge. Angle indexing device. (4) An angle indexing device according to claim 2 or 3, wherein the indexing disk is rotatably inserted into the rotating shaft via a bearing.