JP3141853U - Polishing tool and polishing apparatus using the polishing tool - Google Patents

Abstract

Disclosed are a polishing tool and a polishing apparatus that exhibit excellent effects in polishing cemented carbide products and can be provided at low cost.
A polishing tool used in a polishing apparatus includes a holder 11 that is detachably attached to a rotating body of a rotation driving device and is driven to rotate, and a bamboo material that is split in the fiber direction. And a polishing body 12 in which a large number of bamboo baskets 14 formed in close contact with each other using a binding tool 15 are provided. The holder 11 is provided with a support shaft 19 for being detachably attached to the rotating body 5 at the center of the outer peripheral side of the bottom surface. The polishing body 12 has a base end fitted to the holder 11, 11 is rotatably attached integrally with the front end surface side, and a polishing surface 16 is formed on the front end surface side.
[Selection] Figure 2

Description

  The present invention relates to a polishing tool useful for polishing a cemented carbide product such as a molded body using a hard material such as cemented carbide and a polishing apparatus using the polishing tool.

  Conventionally, in order to polish a cemented carbide molded body molded using a hard material such as cemented carbide, first, the molded body is polished using a diamond grindstone mounted on a surface grinder and rotated. Grind the surface to be treated. This grinding is performed by rough grinding using a diamond grindstone having different roughness, and grinding of the polished surface of the molded body in the order of finish grinding.

  The polished surface of the molded body that has been ground with the diamond grindstone is subjected to final polishing using a buffing tool in which a diamond paste in which diamond particles are kneaded with a viscous material is applied, so that a flat polished surface is obtained.

  The diamond paste used here is formed by kneading diamond particles having a particle size of about 1 to 3 μm with a viscous material.

  Further, as a buffing tool used for finish polishing, a buffing tool in which a polishing cloth is attached to the surface of a disk-shaped substrate is used. As the polishing cloth, fine-grained natural fiber fabrics, leather, and cardboard are used. The buffing using the buffing tool is performed by rotating the buffing tool and polishing the polished surface of the molded body with the rotating buffing tool.

In addition, there exists a thing as described in patent 2842950 (patent document 1) as an art cloth polisher which buffs the surface of metal plates, such as a stainless plate and an aluminum plate.
Japanese Patent No. 2842950

  By the way, the polishing tool used for buffing that has been used conventionally wears the surface of the polishing cloth through several tens of polishing steps, and the surface becomes uneven and uneven. As a result, it becomes impossible to polish the surface of the molded body, which is an object to be polished, while maintaining high-precision flattening. Therefore, in order to realize high-precision flattening and finish the polished surface into a mirror surface, it is necessary to frequently replace the polishing cloth stretched on the surface of the substrate. As a result, the polishing cloth is frequently replaced. Furthermore, it is necessary to remove and replace the buffing tool, which complicates the polishing process. In addition, there is a problem that an exchange cost due to frequent replacement of the polishing cloth is required, and it is not possible to perform efficient polishing economically.

  Therefore, the present invention provides a polishing tool capable of solving the problems of the conventional buffing tool as described above, and further, a buffing apparatus using the buffing tool, and a polishing apparatus using the polishing tool. It was proposed for the purpose of providing.

  A polishing tool proposed to solve the technical problems as described above includes a holder formed in a cylindrical shape with a bottom that is detachably attached to a rotating body of a rotary driving device and a bamboo material in a fiber direction. And a polishing body in which a large number of bamboo baskets formed by splitting into two pieces are in close contact with each other using a binding tool. The holder that constitutes the polishing tool is provided with a mounting portion for detachably mounting on the rotating body of the rotary drive device at the outer peripheral side central portion of the bottom surface portion, and the polishing body is fitted with the base end portion to the holder. Then, it is rotatably attached integrally with the holder, and the front end surface side is a polishing surface.

  The front end side of the polishing body used here is preferably cut to be a flat surface.

  Further, an abrasive is applied to the end portions of the many bamboo baskets bundled to constitute the polishing body.

  Further, the polishing body constituting the present invention may be a polishing body in which the hardened material is polished and worn to have a flat end surface.

  The present invention also provides a rotary drive device having a rotating body that is rotationally driven by a drive motor, and a holder that is detachably attached to the rotary body of the rotational drive device and that is driven to rotate. And a polishing body in which a large number of bamboo baskets formed by splitting bamboo material in the fiber direction are tightly bundled together using a binding tool, wherein the holder is on the outer peripheral side of the bottom surface portion It is attached to the rotary body of the rotary drive unit via a mounting part provided in the center so as to be rotatable. The polishing body can be rotated integrally with the holder by fitting the base end part to the holder. The tip surface side is a polishing surface.

  It is desirable that the front end side of the polishing body used in this polishing apparatus is cut into a flat surface.

  Further, an abrasive is applied to the end portions of the above-mentioned many bamboo baskets bundled to constitute the polishing body.

  Further, the polishing body may be a polishing body having a flat surface obtained by cutting the worn end surface of the hard material.

  The polishing tool according to the present invention is composed of a bundle of a large number of bamboo baskets formed by splitting bamboo materials in the fiber direction. By cutting the front end surface side of the body using a lathe or the like, a flat polished surface can be obtained, and a long life can be achieved as a polishing tool.

  Moreover, since the polishing body is composed of a bundle of bamboo baskets, it is possible to polish a cemented carbide product, which is a molded body using a hard material such as cemented carbide, in a shorter time than a buffing tool. it can.

  Moreover, since the bamboo baskets constituting the polishing body are less expensive than buffs used in the past, the polishing tool can be configured at low cost.

  In addition, since a long tool life is realized, it is possible to reduce the replacement work of the polishing tool when it is configured as a polishing device, realize high-efficiency polishing, and thus reduce the cost of polishing. Can do.

  Hereinafter, a polishing tool and a polishing apparatus using the polishing tool according to the present invention will be described with reference to the drawings.

  A polishing tool 1 according to the present invention is used by being mounted on a polishing apparatus 2 as shown in FIG.

  As shown in FIG. 1, the polishing apparatus 2 to which the polishing tool 1 is mounted includes a rotating body 5 that is rotationally driven by an electric drive motor 4 installed on the base side of the gantry 3. The rotating body 5 is attached to one end side of a rotating shaft 7 that is rotatably supported by a support base 6 attached to the upper portion of the gantry 3. The rotary shaft 7 is connected to the drive shaft of the drive motor 4 by an endless belt 10 wound between a pulley 8 provided in the middle portion and a pulley 9 attached to the drive shaft of the drive motor 4. . The rotating shaft 7 is rotated via the endless belt 10 when the drive motor 4 is driven to rotate.

  The rotating body 5 is rotated integrally with the rotating shaft 7 when the rotating shaft 7 is driven to rotate. Although a detailed description is omitted on one end surface side of the rotating body 7, an attachment support portion for the polishing tool 1 is provided, and the polishing tool 1 is detachably attached.

  The polishing tool 1 detachably attached to the rotating body 5 of the polishing apparatus 2 includes a holder 11 and a polishing body 12 held by the holder 11.

  As shown in FIGS. 2 and 3, the holder 11 is formed in a bottomed cylindrical shape using a metal such as iron. The polishing body 12 is held so as to fit into the cylindrical portion 13 of the holder 11. The abrasive body 12 held by the holder 11 is configured by bundling a large number of bamboo baskets 14 formed by splitting bamboo material in the fiber direction, using a binding tool 15 to be in close contact with each other. The bamboo basket 14 constituting the polishing body 12 has a thickness of about 2 to 4 mm and a length of about 100 mm. A large number of the bamboo baskets 14 are bundled by a linear binding tool 15 such as a wire to constitute the polishing body 12. The polishing body 12 is formed in a thickness that can be fitted into a cylindrical body portion 13 having an inner diameter of about 160 mm. The polishing body 12 is integrally held by the holder 11 by closely fitting the base end portion side to the cylindrical body portion 13.

  The front end surface of the polishing body 12 composed of a bundle of bamboo baskets 14 is a polished surface 16 that is flattened by cutting the front end side of the bamboo baskets 14 bundled in FIG.

  An abrasive 17 such as diamond paste in which diamond particles are kneaded with a viscous material is applied to the tip side of the bamboo basket 14 constituting the polishing surface 16 of the polishing body 12. The polishing agent 17 is used to acclimate and flatten the polishing surface of the object to be polished which has been polished by the bamboo basket 14 and flattened.

  Therefore, a plurality of polishing tools 1 used in the polishing apparatus 2 are prepared, and a polishing agent 17 containing diamond particles having different particle sizes is attached to each polishing tool 1. Then, by polishing the object to be polished while exchanging the polishing tool 1 with the abrasive 17 having a different diamond particle diameter, it is possible to perform polishing with high precision and high efficiency with high efficiency.

  The polishing body 12 held by the holder 11 can be replaced by being extracted from the cylindrical body portion 13.

  In addition, a cylindrical support shaft 19 for attaching to the rotating body 7 on the polishing apparatus 1 side is provided at the outer peripheral side central portion of the bottom surface portion 18 of the holder 11 holding the polishing body 12. The polishing tool 1 is supported so as to be rotatable integrally with the rotating body 7 by supporting the support shaft 19 on an attachment support portion provided on one end surface of the rotating body 7.

  The polishing tool 1 is rotated integrally with the rotating body 7 when the rotating body 7 is rotationally driven by the drive motor 4. Polishing is performed by bringing the polishing surface of the object to be polished into sliding contact with the polishing surface 16 on the tip end surface side of the polishing tool 1 that is rotated. In this polishing process, an abrasive 17 is appropriately supplied to the polishing surface 16 and attached to the tip of the bamboo basket 14.

  By the way, in the polishing tool 1, the front end side of the bundled bamboo basket 14 is worn by repeated polishing, and the polishing surface 16 is uneven. The polished surface 16 having such irregularities is made a flat surface by cutting the tip side of the bamboo basket 14 using a lathe or the like, and can be polished again.

  As described above, the polishing tool 1 according to the present invention can be used by repeatedly cutting the tip end side of the bamboo basket 14 constituting the polishing body 12.

  It was proved that the polishing tool 1 according to the present invention exhibited an excellent effect in polishing a cemented carbide product formed by sintering a hard material such as cemented carbide. Furthermore, since it can be used repeatedly, cost reduction as a polishing apparatus could be realized.

1 is a perspective view schematically showing a polishing apparatus to which the present invention is applied. It is a perspective view which shows the polishing tool to which this invention was applied. It is a side view of the said polishing tool. It is a top view which shows the grinding | polishing surface of a grinding | polishing tool.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Polishing tool 2 Polishing apparatus 5 Rotating body 11 Holder 12 Polishing body 14 Bamboo basket 15 Binding tool 16 Polishing surface 17 Polishing agent 19 Support shaft

Claims (8)

A holder formed in a cylindrical shape with a bottom that is detachably attached to a rotating body of a rotation driving device and is driven to rotate;
A lot of bamboo baskets formed by splitting bamboo material in the fiber direction, and consisting of an abrasive body that is tightly bundled together using a binding tool,
The holder is provided with an attachment part for detachably attaching to the rotating body of the rotary drive device at the outer peripheral side center part of the bottom part,
A polishing tool, wherein the polishing body has a base end fitted into the holder, is rotatably attached integrally with the holder, and has a polishing surface on the tip side.   2. The polishing tool according to claim 1, wherein the tip end side of the polishing body is cut into a flat surface.   The polishing tool according to claim 1 or 2, wherein an abrasive is applied to the front end side of the plurality of bamboo baskets bundled to form the polishing body.   2. The polishing tool according to claim 1, wherein the polishing body has a flat surface obtained by cutting a tip surface that has been worn by polishing a hard material. A rotation drive device including a rotating body that is driven to rotate by a drive motor;
A holder formed in a cylindrical shape with a bottom that is detachably attached to the rotating body of the rotation driving device and is driven to rotate;
A polishing apparatus comprising a polishing body in which a large number of bamboo baskets formed by splitting bamboo material in the fiber direction are closely bonded using a binding tool,
The holder is attached so as to be rotatable integrally with the rotating body of the rotary drive device via an attachment portion provided at the outer peripheral side center portion of the bottom surface portion,
The polishing apparatus is characterized in that a base end portion is fitted to the holder, is rotatably attached integrally with the holder, and a tip surface side is a polishing surface.   6. The polishing apparatus according to claim 5, wherein the front end side of the polishing body is cut into a flat surface.   The polishing apparatus according to claim 5 or 6, wherein an abrasive is applied to the end portions of the plurality of bamboo baskets bundled to constitute the polishing body.   6. The polishing apparatus according to claim 5, wherein the polishing body has a flat surface by cutting a tip surface that has been worn by polishing a hard material.