JP2001162463A - Bearing insertion jig - Google Patents

Abstract

PROBLEM TO BE SOLVED: To easily position an inserted object and a bearing, and to retain the bearing. SOLUTION: This bearing insertion jig 1 has a horizontally set pedestal 2 and a cylinder 3 vertically moving in a direction concentric with the pedestal 2. The pedestal 2 is formed with a groove 16 for positioning the inserted object 15 allowing insertion of the bearing 6. A lower part of a rod 4 of the cylinder 3 is formed with a projecting part 7 for positioning the bearing 6, and is installed with a magnet 8 for retaining the bearing 6 when inserting the bearing 6.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a bearing insertion jig for inserting a bearing into a pulley or the like as an object into which the bearing is inserted.

[0002]

2. Description of the Related Art As shown in FIG. 2, a conventional bearing insertion jig includes a pedestal 51 installed horizontally and a pedestal 51.
And a cylinder 52 that moves up and down concentrically.

The upper surface of the pedestal 51 is formed in a flat shape, and a pulley 54 into which a bearing 53 is inserted is placed thereon.
And the like are to be placed.

[0004] A sleeve 56 for holding a bearing 53 is attached to a rod 55 below the cylinder 52. A convex portion 57 is formed at the lower end of the sleeve 56, and when the bearing 53 is inserted,
The bearing 53 is positioned so as to cover the convex portion 57, and is pressed and held by hand so that the worker does not drop.

[0005] When the cylinder 52 is extended and the rod 55 and the sleeve 56 are lowered, the bearing 53 is pressed into the pulley 54. Thereafter, the cylinder 52 is retracted, the rod 55 and the sleeve 56 are raised, and the insertion operation is completed.

[0006] In addition to the above-described bearing insertion jig, there has also been a bearing insertion jig (not shown) provided with a sleeve whose lower surface is processed into a planar shape.

In this bearing insertion jig, a bearing is previously placed on a pulley placed on a pedestal, and the bearing is pressed and inserted from above in a plane portion on the lower surface of the sleeve.

[0008]

However, in the above-mentioned bearing insertion jig, since the upper surface of the pedestal 51 is flat, it is difficult to position the pulley 54 for centering. When the bearing 53 is inserted while the position is deviated while taking time, there is a problem that the completed pulley oscillates and becomes useless.

In the bearing insertion jig described above, when the bearing 53 is inserted, the bearing 5
There is also a problem that the work has to be time-consuming and troublesome because the user has to hold 3 manually.

Accordingly, the present invention has been devised to solve the above problems, and an object of the present invention is to provide a bearing insertion jig capable of easily positioning an object to be inserted and holding a bearing. It is in.

[0011]

SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, the present invention provides a bearing insertion jig provided with a pedestal installed horizontally and a cylinder which moves up and down coaxially with the pedestal. A groove is formed on the pedestal for positioning the object into which the bearing is inserted, and a convex portion for positioning the bearing is formed below the rod of the cylinder, and the bearing is held when the bearing is inserted. A magnet for mounting is attached.

According to the above construction, the inserted object can be easily positioned simply by fitting it into the groove of the pedestal, and the bearing is held by the magnet, so that the operator can manually handle the object as in the prior art. After being press-fitted into the object to be inserted, the sleeve provided with the magnet can be automatically separated from the magnet simply by raising the sleeve provided with the magnet.

[0013] Preferably, the magnet is provided in a sleeve attached to a lower portion of a rod of the cylinder, and a through hole is formed between the magnet of the sleeve and the held bearing.

It is preferable that the magnet is replaceably provided.

Further, it is preferable that the pedestal is replaceably provided.

[0016]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One preferred embodiment of the present invention will be described with reference to the accompanying drawings.

FIG. 1 is a sectional view showing an embodiment of a bearing insertion jig according to the present invention.

First, the configuration of the bearing insertion jig will be described.

As shown in the figure, a pulley 1 which is an object into which a bearing 6 is inserted is inserted into a bearing insertion jig 1.
And a pedestal 2 placed horizontally for mounting the pedestal 5 thereon.
And a cylinder 3 for moving up and down on the same axis to hold the bearing 6. Cylinder 3 is pedestal 2
, And the rod 4 of the cylinder 3 approaches and separates from the pedestal 2 in the up-down direction.

A sleeve 5 for holding a bearing 6 is attached to a rod 4 below the cylinder 3. The sleeve 5 is formed in a cylindrical shape with a bottom, and a convex portion 7 to be inserted into a ring-shaped bearing 6 is formed downward at the bottom. Inside the sleeve 5, a permanent magnet 8 is inserted and provided to attract and hold the bearing 6 by magnetic force when the bearing 6 is inserted.

A through hole 9 is formed between the magnet 8 of the sleeve 5 and the bearing 6 held. More specifically, a plurality of through holes 9 are formed at the bottom of the sleeve 5 at portions where the bearing 6 abuts when the bearing 6 is surrounded and covered by the convex portion 7, and the magnetic force of the magnet 8 is effectively used. Playing a role.

At the lower part of the rod 4 is formed a male thread 11 extending into the inside of the sleeve 5, while on the inner peripheral surface of the sleeve 5 above the magnet 8, a female thread 12 is formed. The sleeve 5 is attached to the rod 4 by screwing the female thread 12 with the sleeve 4.

The male screw portion 11 is provided with the magnet 8 inside the sleeve 5.
The magnet 8 inside can be replaced when the sleeve 5 is removed.

The pedestal 2 is mounted and supported on a pedestal support 14. The pedestal 2 is freely replaceable with respect to the pedestal receiver 14. On the upper surface of the pedestal 2, a groove 16 for positioning the pulley 15 so as to be centered is formed. The groove 16 is formed to imitate the outer shape of the pulley 15, and the positioning of the pulley 15 is performed by fitting the pulley 15.

Next, a description will be given of the operation of the bearing insertion jig 1 having the above configuration together with the step of inserting the bearing 6.

First, the pulley 15 is fitted into the groove 16 of the pedestal 2, and the bearing 6 is set on the convex portion 7 of the sleeve 5. At this time, since the groove 16 is formed in the same shape as the pulley 15, the positioning thereof can be easily performed only by fitting the pulley 15 therein. Further, the bearing 6 is not dropped because it is attracted by the magnet 8 in the sleeve 5.

Next, the cylinder 3 is extended, and the bearing 6 together with the sleeve 5 is lowered to the mounting position of the pulley 15 (indicated by a two-dot chain line in the figure). At this time, since the bearing 6 is positioned by surrounding and covering the convex portion 7, the bearing 6 is aligned with the center of the pulley 15 and is inserted into the pulley 15 in a suitable positional relationship, and is fitted and fixed. You.

Thereafter, the cylinder 3 is retracted, and the sleeve 5 is raised to the original position. At this time, since the bearing 6 is fixed to the pulley 15, the bearing 6 is automatically separated from the magnet 8 by the weight of the pulley 15 and the bearing 6.
Is completed.

As described above, the positioning is performed by fitting the pulley 15 into the groove 16 and positioning the bearing 6 by surrounding the bearing 6 around the convex portion 7 of the sleeve 5. Alignment with the pulley 15 is possible. Therefore, no time is required for the alignment work,
The working time can be reduced, and the bearing can be inserted accurately without causing misalignment.

The bearing 6 is moved by the magnet 8
Since it is held, there is no need for the operator to press it by hand as in the related art, and the labor can be saved.

Further, according to the present invention, the magnets 8 inside the sleeve 5 can be exchanged. Therefore, by setting the magnets 8 having different magnetic forces according to the weight of the bearings 6 to be mounted, the bearings 6 can be surely mounted. It can be held and can be appropriately separated from the sleeve 5 after being inserted into the pulley 15. The magnet 8 to be replaced may be selected to have a magnetic force that can hold the bearing 6 to be held and cannot be held by the weight of the pulley 15 and the bearing 6.

When the magnet 8 is to be removed from the inside of the sleeve 5, the work can be easily performed by inserting a rod from the through hole 9 and pushing out the magnet 8.

Further, since the pedestal 2 is replaceable with respect to the pedestal receiver 14, the pedestal having a different shape of the groove 16 can be replaced to accommodate an object having a different shape. I have.

In this embodiment, the pulley 15 has been described as an example of the object to be inserted. However, the present invention is not limited to this.

[0035]

In summary, according to the present invention, an excellent effect is obtained in that the inserted object and the bearing can be easily positioned and the bearing can be held.

[Brief description of the drawings]

FIG. 1 is a sectional view showing an embodiment of a bearing insertion jig according to the present invention.

FIG. 2 is a sectional view showing a conventional bearing insertion jig.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Bearing insertion jig 2 Pedestal 3 Cylinder 4 Rod 6 Bearing 7 Convex part 8 Magnet 15 Pulley (object to be inserted) 16 Groove

Claims (4)

[Claims] A bearing insertion jig having a pedestal installed horizontally and a cylinder moving up and down coaxially with the pedestal, for positioning an object into which a bearing is inserted into the pedestal. A bearing insertion jig, wherein a groove is formed, a convex portion for positioning the bearing is formed below the rod of the cylinder, and a magnet for holding the bearing when the bearing is inserted is attached. . 2. The cylinder according to claim 1, wherein said magnet is provided in a sleeve attached to a lower portion of a rod of said cylinder, and a through hole is formed between said magnet of said sleeve and said bearing to be held. Bearing insertion jig. 3. The bearing insertion jig according to claim 1, wherein the magnet is replaceably provided. 4. The bearing insertion jig according to claim 1, wherein said pedestal is replaceably provided.