JPH0639648A - Circlip supplier - Google Patents

Abstract

PURPOSE:To perform obverse/reverse discrimination works for a circlip easily and surely by providing an obverse/reverse discrimination means which executes obverse/reverse discrimination works for the circlip positioned by a holder which is exclusively located in the discrimination work position. CONSTITUTION:A circlip supplier is provided with a housing part which holds a circlip 100 in its predetermined position, a holder 40 which travels between a discrimination work position and a delivery position, and a pusher 50 which forces the circlip 100 to shift from a parts magazine 30 to the holder 40 which is exclusively located in the discrimination work position, with a locking tongue piece 50a fitted into the open part 100A of the circlip 100 and presses the circlip 100 against the holders 40 so as to position it. Obverse/reverse discrimination work for the circlip 100 which is positioned by the holder 40 located exclusively in the discrimination work position is executed by an obverse/reverse discrimination means 60.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION The present invention relates to a circlip feeder.

[0002]

2. Description of the Related Art For example, a structure in which a circlip is fitted in a groove provided on the inner circumference of the through hole is widely adopted as one of means for preventing the bearing from being fitted in the through hole of a casing. Recently, even in the above-mentioned work of mounting the circlip, automation by a circlip assembling device has been achieved.

[0003]

By the way, since the above-mentioned circlip is generally stamped and formed by press working, sagging occurs on the peripheral portion of one surface, and it is difficult for the circlip to come off from the above-mentioned groove when mounted, with respect to the bearing and the like. It is necessary to attach it in consideration of directionality. For this reason, when carrying out the work of mounting the circlip using the circlip assembling device described above, the circlip must be supplied to the circlip assembling device with the front and back aligned. In order to align the front and back, conventionally, the operator visually performed the work of determining the front and back in a circlip. However, it is not easy to visually determine the front and back of a circlip, which is a thin-walled component, and the efficiency of the determination work is extremely poor, and it is often the case that the front and back of the circlip are erroneously determined. The present invention has been made in view of the above circumstances, and an object thereof is to provide a circlip supply device capable of easily and reliably performing front and back determination work in a circlip.

[0004]

In a circlip supply device according to the present invention, a parts magazine for holding the circlip in a posture in which a release portion of the circlip is directed in a predetermined direction, and a housing for holding the circlip in a predetermined posture. The circlip is positioned at the discrimination work position from the parts magazine in a state where the holder having the portion and moving between the discrimination work position and the carry-out position and the locking tongue fitted to the release portion of the circlip. And a pusher for positioning by pressing the circlip against the holder while positioning the circlip, and performing front / back discrimination work on the circlip positioned on the holder occupying the discrimination work position. The above-mentioned object is achieved by providing a discriminating means.

[0005]

According to the above construction, the circlip is sent from the parts magazine to the holder by the pusher, and the front / back discriminating operation is performed by the front / back discriminating means on the circlip positioned in the holder in a predetermined posture. .

[0006]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described in detail below with reference to the drawings showing one embodiment. As shown in FIGS. 1 to 6, a circlip feeding device 1 according to the present invention has an index table 10 rotatably supported on a base 2.
And a guide table 20 fixedly installed on the base 2 so as to be adjacent to the index table 10.

A guide post 33 is fixed to the index table 10 via a frame 31 and a guide block 32 so as to extend in the up-down direction. The guide post 33 has a large number of circups 1.
00, 100 ... are stacked in a posture in which the respective releasing portions 100A are oriented toward the rotation center of the index table 10.

In the lower area of the guide post 33, one circlip 1 is provided between the guide post 33 and the guide post 33.
The circlip cradle 34 is installed with a gap that allows only 00 to pass through. The frame 31, the guide block 32, the guide post 33, and the circlip cradle 34 set the circlip 100 to a predetermined size. The parts magazine 30 that holds the posture is configured.

A total of six parts magazines 30 having the above-described structure are installed on the index table 10 with the same central angle, and by the drive motor 3 provided on the base 2 as shown in FIG. By rotating the index table 10, the parts magazine 30 is occupied at a predetermined position.

As shown in FIG. 1, notches 10a used for positioning are formed at a plurality of positions on the outer peripheral edge of the index table 10 at predetermined intervals, and the notches are formed in the base 2. A sensor 4 for detecting 10a is provided.

On the other hand, as clearly shown in FIGS. 1 and 2,
The guide table 20 described above is arranged in the right side of the index table 10 in the drawing, and the guide table 20 has a holder 40 for supporting the circlip 100 in the left-right direction in the drawing. It is provided so that it can be moved along.

A cylinder actuator 41 supported by the base 2 is connected to the holder 40 via a link arm 42, and the cylinder actuator 41 is connected to the holder 40.
The holder 40 is moved between the determination work position shown by the solid line in FIGS. 1 and 4 and the carry-out position shown by the chain line in FIG.

Further, as shown in FIG. 6, a large protrusion 40a and a pair of left and right small protrusions 40b and 40c are formed at both end edges of the holder 40. In other words, a lower recess is provided in the central region of the holder 40, and the recess constitutes the housing 40A that holds the circlip 100 in a predetermined posture. Furthermore, a cutout 40d is formed in the holder 40 at a position corresponding to the small diameter hole 101 in the circlip 100 when the circlip 100 is held in a predetermined posture.

As shown in FIGS. 1 and 2, a fixed table 11 is installed immovably with respect to the base 2 in a portion corresponding to the central region of the index table 10, and the fixed table 11 has: The pusher 50 is movably provided while being guided by a pusher guide 51 fixedly provided on the fixed table 11.

The pusher 50 corresponds to the fixed table 1
Based on the operation of the cylinder actuator 52 fixed to No. 1, the cylinder table 52 is moved forward and backward along the radial direction of the index table 10 from the initial position shown by the solid line in FIGS. 1, 2, and 3.

The pusher 50 has a plate-like shape and, as shown in FIG. 4, the parts magazine 30.
An engaging tongue piece 50a having a shape that can be fitted into the gap of the release portion 100A of the circlip 100 is formed at the end portion on the side opposite to.

On the other hand, as shown in FIG. 1, FIG. 2 and FIG. 5, a frame 61 is erected at a position facing the holder 40 which is occupied at the discrimination work position on the guide table 20. A double rod type cylinder actuator 62 is attached to the upper portion of the frame 61, and a measuring taper pin 63 having a tapered tip portion (lower end portion) is provided at the lower end portion of the operating rod of the cylinder actuator 62. The dog plate 64 is attached to the upper end while being fixed.

Sensors 66, 66 are provided on a pair of columns 65, 65 standing on the upper portion of the frame 61 so as to face each other. The frame 61, the cylinder actuator 62, and the measuring taper pin. 63, the dog plate 64, and the sensors 66, 66 constitute a front / back discriminating means 60 for discriminating the front / back of the circlip 100.

When the circlip supply device 1 having the above-described structure starts to operate, the pusher 50 is moved from the initial position based on the operation of the cylinder actuator 52 on the fixed table 11, and is stacked in the parts magazine 30. Of the many circlips 100, 100 ..., only the lowest one is pushed by the pusher 50 and sent out from the parts magazine 30.

At this time, the engaging tongue piece 50a of the pusher 50 is fitted into the releasing portion 100A of the circlip 100, so that the circlip 10 is being transferred.
Inadvertent rotation of 0 is prevented in advance.

The circlip 100 sent out from the parts magazine 30 passes through the upstream portion (left end portion in the drawings) of the guide table 20 shown in FIGS. 2 and 4.
Further, after passing through the small protrusions 40b and 40c of the holder 40 which is occupied at the determination work position, the holder 40 strikes the large protrusion 40a of the holder 40 and falls into the accommodation portion 40A of the holder 40.

Here, the circlip 100 is shown in FIG.
As shown in (a) and (b), the pusher 50 presses the large protrusion 40a of the holder 40 so that it is held in the holder 40 and positioned in a predetermined posture.

After the circlip 100 is positioned, the taper bin 63 for measurement in the front / back discriminating means 60.
Is lowered and the tip end portion of the measuring taper bin 63 is inserted into the small diameter hole 101 of the circlip 100, whereby the front and back of the circlip 100 are discriminated.

Here, as shown in FIG. 7, the surface of the circlip 100 is formed on the inner peripheral surface of the small-diameter hole 101 in the circlip 100 due to the fact that a cutting portion and a fracture portion are generated during punching. There is a difference in the inner diameter dimension of the small diameter hole 101 between the portion close to 100a and the portion close to the back surface 100b of the circlip 100.

For this reason, the measuring taper pin 63 is provided in the small diameter hole 101 as shown in FIG.
7 is inserted from the front surface 100a side, and as shown in FIG. 7B, from the back surface 100b side of the circlip 100, the insertion depth of the measurement taper pin 63 with respect to the circlip 100, in other words, from the initial position. The movement amount of the measuring taper pin 63 is different.

Therefore, the front and back of the circlve 100 can be discriminated based on the movement amount of the dog plate 64 detected by the pair of sensors 66, 66 in the front and back discriminating means 60, that is, the movement amount of the measuring taper pin 63. To be done.

Further, as shown in FIG. 8, even when the circlip 100 is distorted in the central axis direction (thickness direction), when the measuring taper pin 63 is inserted into the small diameter hole 101, The end is the holder 4 described above.
Since the container portion 40A of 0, in other words, is pressed against the reference portion at the time of measurement, the front and back of the circlip 100 can be surely discriminated without lowering the measurement accuracy.

When the measurement work of the circlip 100 by the front / back discriminating means 60 is completed, the holder 40 holds the circlip 100, and based on the operation of the cylinder actuator 41 on the base 2, the holder 40 moves from the determination work position to the carry-out position. Move to. At this time, the pusher 50 moves backward and returns to the initial position, and waits for the next circlip feeding operation.

When the holder 40 reaches the carry-out position,
The circlip 100 accommodated in the holder 40 is
After being taken out from the holder 40 by a loader (not shown), it is carried to the next step, for example, a circlip assembling apparatus.

At this time, if the work condition is such that the "front side" of the circlip 100 must be conveyed upward to the next step, if the result of the above-mentioned front / back side discriminating means 60 is "back side". The circlip 100 is mounted by a reversing device (not shown) attached to the loader.
Is turned over and is conveyed to the next process in a posture with the "front surface" facing upward.

At the carry-out position, the circlip 10
The holder 40 that has been taken out 0 and has become empty returns to the determination work position from the carry-out position, and waits for the next carry-in of the circlip.

By repeating the above-described series of operations, a large number of circlips 100, 100, ... Stacked in each parts magazine 30 are sequentially distinguished from each other, and then the next process is performed. Will be supplied.

[0033]

As described above in detail, in the circlip supply device according to the present invention, a parts magazine for holding the circlip with its release portion oriented in a predetermined direction,
A holder having an accommodating portion for holding the circlip in a predetermined posture and moving between a discriminating work position and an unloading position, and a circlip with a locking tongue fitted to the releasing portion of the circlip. A circlip positioned between the parts magazine and the holder occupying the discrimination work position, and a pusher for pressing the circlip against the holder for positioning, and the circlip positioned in the holder occupying the discrimination work position. By providing front and back discriminating means for performing front and rear discriminating work, the circlip is sent from the parts magazine to the holder by the pusher, and the circlip is positioned in a predetermined posture in the holder and the front and rear discriminating means performs Since the discrimination work is performed, it is possible to easily and surely perform the discrimination work for the front and back sides of the above circlip. Was Tsu.

[Brief description of drawings]

FIG. 1 is an overall plan view of a circlip supply device according to the present invention.

FIG. 2 is an overall sectional side view of a circlip supply device according to the present invention.

FIG. 3 is a cross-sectional view of essential parts showing a circlip supply device according to the present invention.

FIG. 4 is a partially cutaway plan view showing a main part of a circlip supply device according to the present invention.

FIG. 5 is a cross-sectional view of essential parts showing front and back discriminating means of the circlip supply device according to the present invention.

6A and 6B are an overall plan view showing a holder of a circlip supply device according to the present invention, and a sectional view taken along line AA in FIG. 6A.

7 (a) and 7 (b) are conceptual diagrams showing an operation mode of front and back discriminating means in the circlip supplying apparatus according to the present invention.

FIG. 8 is an overall side view of the distorted circlip carried into the circlip supply device according to the present invention as viewed from the release section side.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Circlip supply device, 30 ... Parts magazine, 40 ... Holder, 40A ... Storage part, 50 ... Pusher, 50a ... Locking tongue piece, 60 ... Front / back discrimination means, 63 ... Measuring taper pin, 100 ... Circlip, 100A … Opening part, 101… small diameter hole

Claims (2)

[Claims] 1. A discriminating work position and a carry-out position, which has a parts magazine for holding the circlip in a posture in which a release portion of the circlip is oriented in a predetermined direction, and a storage portion for holding the circlip in a predetermined posture. A holder provided movably between and a locking tongue that fits into the release portion of the circlip,
The circlip is transferred from the parts magazine to the holder occupying the discrimination work position while the locking tongue is fitted to the release portion, and the circlip is pressed against the holder. The pusher for positioning the circlip and the holder occupying the discrimination work position are provided so as to face the front and back of the circlip that is positioned by the holder occupying the discrimination work position. A front and back discriminating means for carrying out the above, and a circlip supply device characterized by comprising: 2. The front and back discriminating means has a taper-shaped tip portion, and is provided so as to be movable back and forth so as to be inserted into a small diameter hole provided in the circlip in the vicinity of an opening portion. 2. The circlip supply device according to claim 1, further comprising a taper pin and a sensor for detecting the advance / retreat status of the measuring taper pin.