JPH0592249A - Processing device for supporting roller - Google Patents

Abstract

PURPOSE:To do without performing preprocessing of working of a supporting roller by supporting bearing mounted on both sides of a rotating core material in the outside fitting shape through a pair of supporting bases, driving the rotating core material rotatively and working it. CONSTITUTION:When the wear and tear of a supporting roller 4 mounted on the rotating core material 2 are repaired and worked, a pair of bearings 3 mounted on both ends of the rotating core material 2 in the outside fitting shape are supported by a pair of supporting bases 11, a connecting tool 12 is screwed in a male screw part 2a of the rotating core material 2 and worked by a cutting tool as a sprocket 17 is driven by a motor 13. A supporting part 11a through which the supporting base 11 comes in contact with the bearing 3 is formed in a V-shape so that centering can be performed automatically irrespective of the dimension of the diameter of the bearing 3 mounted. After the bearing 3 is mounted, it is clamped by a clamping tool 15. Miscellaneous works before beginning to work a supporting roller 4 are not required and the working efficiency is improved.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention, for example, is intended to correct wear and tear due to use of a support roller of a rotary support device that rotatably receives a supported object such as a mold in a centrifugal casting method. Support roller processing device for processing the surface of
More specifically, a rotary support device including a pair of bearings that are separately fitted to both ends of a rotating core member in an externally fitted state, and a support roller that is externally fitted to an intermediate part and that rotatably receives a supported object. The present invention relates to a supporting roller processing device for supporting a substrate and processing the supporting roller.

[0002]

2. Description of the Related Art Conventionally, as a supporting roller processing device of this type, as shown in FIG. 4, a bearing 3 located on one end side of a rotating core member 2 is supported to transmit a rotational force about its axis. There has been one in which a free chuck 8 and a tailing tool 9 that abuts and supports the rotating shaft center of the other end side end surface of the rotating core member 2 are provided.

The support roller 4 is processed by the support roller 4
Is carried out in a state where it is rotated around its axis. When the support roller 4 is processed by this support roller processing device, since the bearing 3 is sandwiched by the chuck 8 to transmit the rotational force, the bearing 3 It is necessary that the support roller 4 be rotated at the same time as is rotated. Therefore, the bearing 3 and the support roller 4 are integrally fixed in advance by the fixture 10, and the rotary support device 1 in this state is supported by the chuck 8 and the tailstock 9, and the shaft center is the chuck 8 and the tailstock. The centering is performed until it coincides with the rotation drive shaft formed by the tool 9, and then the processing is started.

[0004]

As described above, conventionally, in the processing of the supporting roller, a lot of miscellaneous work such as fixing the bearing and the supporting roller, and removing the fixing tool after the processing is finished, and , The axis of the rotation support device,
There is a drawback in that it takes time and effort to make adjustments to support the rotary drive shaft formed by the chuck and the tailstock.

Therefore, in view of the above-mentioned drawbacks, an object of the present invention is to provide a supporting roller processing apparatus which can easily perform axial alignment of a rotary supporting device without performing pretreatment for supporting roller processing. It is in.

[0006]

A characteristic configuration of the present invention for achieving this object is to provide a pair of support bases for separately supporting a pair of bearings attached in an externally fitted state at both ends of a rotating core member, There is provided a connector for connecting the both bearings to one end of the rotating core member in a state of being supported by the both supporting bases and transmitting the rotational force of the rotation drive mechanism to the rotating core member.

[0007]

According to the characterizing feature of the present invention, since the pair of support bases for separately supporting the pair of bearings attached in the externally fitted state are provided at both ends of the rotary core member, the rotary support device is provided with both support bases. In addition, both bearings play a role as a support tool that rotatably supports the rotating core material and the supporting roller by simply installing both bearings in a mounted state. Since the axis of rotation is determined, the conventional alignment is not necessary. In addition, by connecting both ends to one end of the rotating core member while supporting both bearings on both support bases, a connector for transmitting the rotational force of the rotation drive mechanism to the rotating core member is provided, so that it is directly attached to the rotating shaft. Can be given a rotational force to
There is no need to fix the bearings and supporting rollers, or remove the fixing tool after processing is completed.

[0008]

As a result, it is possible to eliminate the troublesome work before starting the processing of the supporting roller, and to perform the processing without trouble and to improve the working efficiency.

[0009]

Embodiments of the present invention will be described below with reference to the drawings.

First, the rotary support device 1 to be processed will be described with reference to FIG. This embodiment will be described by taking as an example a rotary support device 1 that rotatably supports a centrifugal casting mold, which is a rotating object to be supported, when performing centrifugal casting. This rotary support device 1 has a pair of bearings 3 which are separately fitted to both ends of a core material 2 for rotation which is a shaft of rotation, and a pair of bearings 3 which are externally fitted to an intermediate part of the rotary core material 2 and which rotates a centrifugal casting mold. Support roller 4 that receives freely
It is formed by and.

The rotating core member 2 is provided at both ends with male screw portions 2a with which the retaining nuts 5 of the bearing 3 are screwed.

The bearing 3 is attached by shrink fitting at a position where the male screw portion 2a is kept away from the end of the rotating core material 2, and the roller-shaped bearing 3a circumscribing the rotating core material 2 is provided.
And a bearing case 3b that covers the outer periphery of the bearing case, and a protective lid 6 attached to the end of the bearing case 3b. When the lid 6 is removed, the male screw portion 2a at the end of the rotating core member 2 and the retaining nut 5 screwed to the male screw portion 2a are exposed.

Further, the support roller 4 is a support surface 4a against which the mounting surface of the centrifugal casting mold abuts, and a collar-shaped deviation prevention for preventing the centrifugal casting mold from shifting on the support surface 4a. A part 4b is provided. Generally, in the case of centrifugal casting, when the rotary support device 1 is used for a long time, the support surface 4a is worn by friction with the mounting surface of the centrifugal casting mold and heat of the molten metal. .. Therefore, the support surface 4 of the support roller 4
It is necessary to machine a.

Next, the situation in which the above-described rotary support device 1 is installed in the support roller processing device of this embodiment is shown in FIGS.
Shown in.

A pair of support bases 11 for individually supporting a pair of bearings 3 of the rotary support device 1 are provided on a base 14 so as to be movable and fixed in the rotation axis direction of the rotary support device 1. Both support bases 11 are formed in the same shape, and the bearing 3
The supporting portion 11a for supporting the bearing is formed in a V-shape having two surfaces relatively inclined along the radial direction of the bearing 3. Due to the V-shaped support portions 11a provided on both of the support bases 11, the bearings 3 having any diameter can be automatically placed so that their axes coincide with the rotation drive shaft of the support roller processing device. .. Further, in order to fix the bearing 3 on the support base 11, a holding tool 15 which is held by the support portion 11a is connected to the support base 11 by a bolt.

On one end side of the installed rotary support device 1, a connecting member 12 is screwed onto the male screw portion of the rotating core member 2,
The connector 12 is pivotally supported by a pivot support 16 provided on a base 14. A sprocket 17 is externally fitted to the connector 12 so as to rotate integrally therewith, and a chain 18 is laid between the sprocket 17 and the motor 13 which is an example of a rotation drive mechanism. Therefore, by rotating the motor 13, the rotating core material 2 and the support roller 4 also interlock. The speed of rotation is adjusted by a speed reducer attached to the motor 13. Further, the pivot support 16 is provided with an arm that can be expanded and contracted and fixed, and by expanding and contracting this arm, the position of the connecting tool 12 can be adjusted in accordance with the position of the rotating core member 2.

On the other hand, a cutting tool 19 for cutting the support surface 4a of the support roller 4 is also provided on the base 14.

[Other Embodiment] Another embodiment will be described below.

In the above embodiment, the rotary support device 1 for supporting the mold in centrifugal casting has been described, but the present invention is not limited to this. For example, a wheel or the like may be targeted. Well, in short, as long as it is pivotally supported by a bearing and has a circumferential surface with the pivot shaft as a rotation axis, it can be applied regardless of its application.

Further, the object to be processed is not limited to the supporting surface 4a of the supporting roller 4, and may be the deviation preventing portion 4b or the side surface. Further, the processing method is not limited to the cutting processing, and for example, surface processing such as shot blasting may be performed.

It should be noted that reference numerals are added to the claims for convenience of comparison with the drawings, but the present invention is not limited to the configurations of the accompanying drawings by the entry.

[Brief description of drawings]

1] Front view

FIG. 2 Side view

FIG. 3 is a diagram showing a rotation support device.

FIG. 4 is a front view showing a conventional example.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 rotary support device 2 core material for rotation 3 bearing 4 support roller 11 support base 12 connector 13 rotation drive mechanism

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Manabu Yoshiyama 1-1-1, Nakamiya Oike, Hirakata City, Osaka Prefecture Kubota Hirakata Factory

Claims (1)

[Claims] 1. A pair of bearings (3) that are separately fitted to both ends of a rotating core material (2) in an externally fitted state, and a support roller that is externally fitted to an intermediate part and rotatably receives a supported object. (4) A rotation support device (1) composed of
A support roller processing device for supporting the bearing roller and processing the support roller, wherein a pair of support bases (11) for separately supporting the bearings (3) are provided, and the bearings (3) are A connector (12) that is connected to one end of the rotating core material (2) while being supported by both support bases (11) and that transmits the rotational force of the rotation drive mechanism (13) to the rotating core material (2). Support roller processing device with.