JP2002242948A - Assembly apparatus for needle bearing - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an assembly apparatus for a needle bearing, of which workability is improved to assemble the needle bearing with good yield. SOLUTION: The assembly apparatus for a needle bearing comprises: a push-in device for sequentially feeding needles in a line; an aligning apparatus for aligning the needles at positions corresponding to an inside of a hollow portion partitioned in a roller outer ring; and a means for fitting the aligned needles in the hollow portion in the roller outer ring.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to a needle bearing assembly device.

[0002]

2. Description of the Related Art Conventionally, in such a needle bearing assembling apparatus, when assembling a needle bearing, the needles are fed one by one to a rotating index shaft, a constant number of needles are arranged in an annular shape, and inserted into a roller outer ring. Mechanism, and such an assembling apparatus is disclosed in
It is already known in, for example, Japanese Patent No. 50341.

[0003]

In the conventional needle bearing assembling apparatus described above, since needles are fed one by one into the roller outer ring, it takes a long time to insert a constant amount in a ring shape, and the workability is excellent. Hard to say. And one
In this constant feeding, it is difficult to check the number of needles, the occurrence rate of the shortage is high, and the yield is low. The present invention has been made in view of such circumstances, and has as its object to provide a needle bearing assembling apparatus that is excellent in workability and has a high yield by solving the above-described problems that occur in a conventional needle bearing assembling apparatus. I do.

[0004]

Means for Solving the Problems In order to achieve the above object, the present inventors have conducted intensive studies and found that a pushing device for sequentially supplying needles in a line and a hollow device defined in a roller outer ring correspond to a pushing device. It is found that the above-mentioned conventional workability is improved by producing an assembling apparatus having an aligning device for aligning the needles to be aligned and a mechanism having means for fitting the aligned needles into the hollow portion in the roller outer ring. did. In addition, by sending the needles all at once,
We also found that it was easy to check the number of passing needles, and by providing a needle backflow prevention device that aligned the needles in a circular direction in a certain direction, it was possible to prevent the needle from falling down when sending the needles in a lump. It was also found that a needle bearing can be assembled with a high yield to prevent this.

[0005] The present invention has been completed through various studies. Accordingly, the present invention provides (1) a pushing device for sequentially supplying needles in a row, an aligning device for aligning needles corresponding to hollow portions defined in the roller outer race, and an aligning device for aligning the aligned needles in the roller outer race. A needle bearing assembling device having means for fitting in the hollow portion, and (2) an aligning device for aligning the needles, wherein a constant number of needles supplied in one row are defined in the roller outer ring. The needle bearing assembling apparatus according to the above item (1), comprising an alignment jig formed in an annular shape to be aligned so as to correspond to the inside of the hollow portion, (3).
(1) wherein the alignment device has a mechanism for elevating and lowering the needle until it comes into contact with a predetermined position of the roller outer ring so that the needle is fitted into a hollow portion in the roller outer ring.
Or the needle bearing assembly device according to (2),
(4) A pushing device for sequentially supplying the needles in one line comprises a parts feeder for sequentially supplying the needles, a device having a constant multi-stage stock mechanism by multi-needle supply of the needles, and a single line of the multi-stage stocked needles. A needle pusher that pushes the needle to the position where it is aligned in a ring,
A needle bearing assembly device according to any one of (1) to (3), further comprising: a needle backflow prevention device for aligning the needles in a circular direction in a predetermined direction; The needle bearing assembling apparatus according to any one of (1) to (4), wherein the means to be fitted in the part includes a grease supply part for supplying grease to an outer peripheral surface of the needle, (6) a roller outer ring. The hollow part defined inside is the inner peripheral surface of the roller outer ring,
The needle bearing assembling apparatus according to the above (1), which is formed between the roller outer ring and the outer peripheral surface of the roller inner ring supplied and assembled, and (7) the above (2). The present invention relates to a needle bearing assembly device provided with an alignment jig.

[0006]

Embodiments of the present invention will be described below with reference to embodiments shown in the accompanying drawings.

[0007]

1 to 5 show an embodiment of the present invention, and FIG. 1 is a schematic side view of a needle bearing assembling apparatus according to an embodiment of the present invention. FIG. 2 is a plan view of the needle bearing assembly device shown in FIG. FIG. 3 is a side view of the needle bearing after the needle is fitted. FIG. 4 is a schematic view showing a state where the needles stocked in multiple stages are arranged in a line. FIG. 5 is a partially enlarged view of an alignment jig showing a state of needles arranged in a ring shape.

First, referring to FIGS. 1 to 3, a needle bearing assembling apparatus 10 formed on a base 11 has (a) a roller outer ring 50, a roller inner ring 51, and a needle 52 after assembly. A delivery device 12 for sequentially slidingly delivering the needle bearings 53; (b) a constant multi-stage stock mechanism device 15 for feeding the needles 52 in multiple rows from the parts feeder 13 via the spring chutes 14 for multi-stage stocking; Needle pushing device 18 provided with a needle pusher 17 that collectively feeds the arranged needles 52 into an annular aligning jig 19 belonging to the aligning device 22 after the needles 52 arranged in a line along the guide plate 16. And (d) a hollow portion is defined between the inner peripheral surface of the roller outer ring 50 and the outer peripheral surface of the roller inner ring 51. A fixing jig 20 for holding the roller outer ring 50 and the roller inner ring 51 at a position where the needles 52 arranged in one row are fitted, (e) a grease supply unit 21 for supplying grease to the outer peripheral surface of the needle, and An aligning device 19 for annularly aligning the needles 52 corresponding to the hollow portions, and (f) a needle assembling device 2 which rises from the air cylinder A to a position where the needles 52 are fitted into the hollow portions.
3 are provided.

In the delivery device 12, first, a roller outer ring 50 is sequentially supplied onto a slide stage 25 of the delivery device 12 from an input port (not shown). Roller outer ring 50
After the inner diameter of the roller is determined by a determination dummy (not shown), the roller inner ring 51 is inserted into the inner peripheral surface of the roller outer ring 50 for a good product. When the roller outer ring 50 into which the roller inner ring 51 is inserted is delivered to the position of the aligning device 22, the cylindrical fitting jig 26 corresponding to the inner diameter of the inner peripheral surface of the roller inner ring 51 is moved to the inner periphery of the roller inner ring 51. Inserted in the plane. The fitting jig 26 previously defines a hollow portion between the inner peripheral surface of the roller outer ring 50 and the outer peripheral surface of the roller inner ring 51 so as to fit the needles 52 arranged in a line in a ring at once. This is for positioning the roller inner ring 51 for forming. After the fitting jig 26 is inserted into the inner peripheral surface of the roller inner ring 51, the roller inner ring 51 is moved together with the roller outer ring 50 in a direction orthogonal to the delivery direction of the slide stage 25, and is delivered to a position where the needle 52 is assembled. . Further, in order to provide the hollow portion, the outer peripheral surface of the roller outer ring 50 is supported by the centering roll 27 of the fixing jig 20.

On the other hand, with respect to the supply of the needles 52 to be fitted into the roller outer ring 50, first, the needles 52 are supplied in multiple rows from the parts feeder 13 to the constant multi-stage stock mechanism device 15 via the spring chute 14. The needles 52 supplied in multiple rows are slid by the air cylinder B, and are arranged in one row so as to correspond to a constant number of needles 52 that are stocked in multiple stages. With reference to FIG. 4 as well, the needles 52 that have been multi-stage stocked by the multi-stage stock mechanism device 15 are sequentially arranged in a line to the needle pushing device 18 along the guide plate 16 by sliding movement of the fixed arrangement plate 28 and the air cylinder C. Is done. The needles 52 arranged in a line are arranged by a plate-shaped needle pusher 17 corresponding to the width and height of the guide plate 16 in an annular alignment jig 19 for aligning the needles 52 corresponding to the defined hollow portion. And send them all at once. With reference to FIG. 5 as well, the number of needles 52 sent together is checked by the alignment jig 19.
Is performed by the sensor 30 immediately before the needle 52 enters the inside.
The number of members can be checked accurately and easily rather than sent one by one. Needle 52 sent in batch
First, the needles 52 are always sequentially fed into the annular alignment jig 19 in a certain direction to be aligned. In order to have regularity in the direction in which the needle 52 is fed, the needle 52 is prevented from being fed in the reverse direction by the needle backflow prevention device 31 having a plunger mechanism. When the needle 52 is being pushed into the alignment jig 19, grease is supplied from the grease supply unit 21 onto the outer peripheral surface of the needle 52 so as to fit into the hollow portion. The needle 52 which is annularly aligned in the alignment jig 19
Is raised by the air cylinder A until it comes into contact with a predetermined position of the roller outer ring 50 so as to be fitted in the hollow portion, and the needle 52 is fitted in the hollow portion.

[0011] The needle bearing 53 with the needle 52 fitted thereon is again moved to the slide stage 25 of the delivery device 12.
And the other components, for example, the circlip, are assembled to complete the assembly of the needle bearing.

[0012]

According to the present invention, a pushing device for sequentially supplying needles in a row, an aligning device for aligning needles corresponding to hollow portions defined in a roller outer race, and a roller for aligning the aligned needles The needle bearing assembling apparatus having the means for fitting into the hollow portion in the outer race can improve the workability and assemble the needle bearing with a high yield. In addition, by pressing the needles into the alignment jig in a lump, the number of constant needles can be checked continuously, and it is easy to confirm that the number of members is insufficient.

[Brief description of the drawings]

FIG. 1 is a schematic configuration side view of a needle bearing assembling apparatus according to an embodiment of the present invention.

FIG. 2 is a plan view of the needle bearing assembly device shown in FIG.

FIG. 3 is a side view of the needle bearing after needle fitting.

FIG. 4 is a schematic diagram showing a state where needles stocked in multiple stages are arranged in a line.

FIG. 5 is a partially enlarged view of an alignment jig showing a state of needles arranged in an annular shape.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 ... Needle bearing assembly apparatus 11 ... Base part 12 ... Delivery apparatus 13 ... Parts feeder 14 ... Spring chute 15 ... Constant multi-stage stock mechanism apparatus 16 ... Guide plate 17. ..Needle pusher 18 ・ ・ ・ Needle pushing device 19 ・ ・ ・ Alignment jig 20 ・ ・ ・ Fixing jig 21 ・ ・ ・ Grease supply part 22 ・ ・ ・ Alignment device 23 ・ ・ ・ Needle assembling device 25 ・ ・ ・ Slide Stage 26: fitting jig 27: centering roll 28: fixed plate 30: sensor 31: needle backflow prevention device 50: roller outer ring 51: roller inner ring 52・ ・ Needle 53 ・ ・ ・ Needle bearing A, B, C ・ ・ ・ Air cylinder

Claims (7)

[Claims] 1. A pushing device for sequentially supplying needles in a row, an aligning device for aligning needles corresponding to hollow portions defined in a roller outer ring, and an aligning needle in a hollow portion in a roller outer ring. A needle bearing assembling device comprising means for fitting. 2. An annular aligning device for aligning needles, the aligning device for aligning the needles of a constant number supplied in one row so as to correspond to a hollow portion defined in a roller outer ring. 2. The needle bearing assembling apparatus according to claim 1, wherein the needle bearing assembling apparatus comprises a tool. 3. The apparatus according to claim 1, wherein the aligning device has a mechanism for elevating and lowering the needle until it comes into contact with a predetermined position of the roller outer ring so that the needle is fitted into a hollow portion in the roller outer ring. Needle bearing assembly equipment. 4. A push-in device for sequentially supplying needles in one line, a parts feeder for sequentially supplying needles, a device having a constant multi-stage stock mechanism by multi-row supply of needles, and a single-row fixed arrangement of multi-stage stocked needles. And a needle pusher that pushes the needle to a position where the needles are annularly aligned, and a needle backflow prevention device that aligns the needles annularly in a certain direction. A needle bearing assembling apparatus according to item 1. 5. A means for fitting a needle into a hollow portion,
The needle bearing assembly device according to any one of claims 1 to 4, further comprising a grease supply unit that supplies grease to an outer peripheral surface of the needle. 6. A roller according to claim 6, wherein a hollow portion defined in the outer race of the roller is formed between an inner peripheral surface of the outer race of the roller and an outer peripheral surface of the inner race of the roller supplied with the outer race of the roller. The needle bearing assembly device according to claim 1, wherein 7. A needle bearing assembling apparatus comprising the alignment jig according to claim 2.