KR20110056043A - Wheel assembly for grinding and grinding apparatus including the same - Google Patents

Abstract

PURPOSE: A wheel assembly for grinding and a grinding device comprising the same are provided to enable a grinding unit to be easily coupled to a disc since a guide unit is installed on the disc. CONSTITUTION: A wheel assembly(50) for grinding comprises a disc(110), a grinding unit(130), and a separation preventing unit(150). The guide unit(112) of the disc is arranged on a surface facing a target surface and is extended from the outer side to the inner side. The grinding unit comprises a coupling unit(132) and a contact unit(134). The coupling unit is slidably coupled to the guide unit. The contact unit is extended from the coupling unit and makes contact with the target surface. The separation preventing member prevents the grinding unit from becoming separated from the disc.

Description

Grinding wheel assembly and grinding apparatus including the same {Wheel assembly for grinding and grinding apparatus including the same}

The present invention relates to a polishing wheel assembly and a polishing apparatus comprising the same.

A polishing apparatus is used to polish the surface to be polished. Generally, the polishing apparatus includes a polishing wheel facing the polishing target surface.

In the related art, a polishing wheel including a disc body and a plurality of sandpaper bundles coupled to the disc body has been disclosed. Such abrasive wheels have a problem that they cannot be used for a long time and are frequently replaced because the sandpaper bundle itself is easily worn.

In order to solve such a problem, a polishing wheel including a disk and a plurality of polishing members coupled to the disk and having diamond is disclosed. Such a polishing wheel can be used for a long time compared to the previous polishing wheel including sandpaper bundle because the polishing member has abrasion resistance.

As described above, in the polishing wheel including the plurality of polishing members, each polishing member is coupled to the disk by a complicated mechanism. Accordingly, when each polishing member is damaged, the process of separating the damaged polishing member from the disk and joining the new polishing member to the disk is complicated.

It is an object of the present invention to provide a polishing wheel and a polishing apparatus including the same.

According to an aspect of the present invention to achieve the above object, a polishing wheel assembly for polishing a surface to be polished, comprising: a disk having a guide portion extending from the outside to the inside on the surface facing the polishing surface; A polishing member including a coupling part slidably coupled to the guide part and a contact part extending from the coupling part to contact the polishing target surface; And a release preventing portion for preventing the polishing member from being separated from the disk.

The guide part may include a coupling groove extending from the outside of the disk to the inside, the coupling groove slidably coupled to the coupling portion, and a guide groove connected to the coupling groove and open toward the polishing target surface.

The coupling groove may have a cross-sectional shape of any one of a circle, a dovetail type, and a polygon.

The guide portion may be formed in plural, the plurality of guide portions may be spaced apart from each other in the circumferential direction, and the polishing member may be formed in plural in correspondence with the plurality of guide portions.

The polishing member may further include a plurality of diamonds disposed at a side of the contact portion facing the polishing target surface.

A space portion communicating with an inside of the plurality of guide portions is provided inside the disc, and the separation prevention portion includes a coupling ring detachably coupled to an edge of the disc, and a cap inserted into the space portion to fill the space portion. It may include.

The inside of the guide part is closed, and the separation prevention part may include a coupling ring that is detachably coupled to the edge of the disk.

According to another aspect of the invention, the drive unit; A rotating shaft connected to the driving unit; And the polishing wheel assembly coupled to the rotating shaft.

According to the present invention, by providing the guide portion in the disk, the polishing member can be easily coupled to the disk, it is easy to install and repair the polishing wheel assembly.

Hereinafter, a preferred embodiment of the present invention will be described in detail with reference to the accompanying drawings, in the description with reference to the accompanying drawings, the same or corresponding components are given the same reference numerals and duplicate description thereof will be omitted. Let's do it.

1 is a view conceptually showing a polishing apparatus according to an embodiment of the present invention. Referring to FIG. 1, the polishing apparatus 1 according to the present exemplary embodiment may include a driving unit 10, a rotation shaft 30, and a polishing wheel assembly 50.

The driving unit 10 provides a driving force for rotating the polishing wheel assembly 50 to be described later. The driving unit 10 may be disposed inside the housing 20. The driving unit 10 may be connected to the rotation shaft 30. As shown in FIG. 1, the rotation shaft 30 may be directly connected to the driving unit 10, but may be connected to the driving unit 10 by various couplings (not shown).

The rotating shaft 30 is coupled to the polishing wheel assembly 50 and transmits the driving force generated in the driving unit 10 to the polishing wheel assembly 50. The polishing wheel assembly 50 is for polishing the surface to be polished 5 and may be surrounded by the wheel cover 40.

Figure 2 is a schematic exploded perspective view of a polishing wheel assembly according to an embodiment of the present invention. Referring to FIG. 2, the polishing wheel assembly 50 according to the present exemplary embodiment may include a disk 110, an abrasive member 130, and a departure preventing unit 150.

The disk 110 may rotate in combination with the rotation shaft 30. A central hole of the disc 110 may be provided with a through hole 111 through which a coupling member (not shown) such as a bolt for coupling the disc 110 to the rotating shaft 30 passes.

The disk 110 may include a guide portion 112 on a surface opposite to the polishing target surface 5 (see FIG. 1). The guide part 112 may extend inward from the outside of the disk 110. The guide portion 112 is a portion to which the polishing member 130 to be described later is coupled, and in particular, the coupling portion 132 of the polishing member 130 is slidably coupled.

According to the present embodiment, the guide portion 112 is connected to the coupling groove 114 extending from the outside of the disk 110 to the inside, the coupling groove 114 and the polishing target surface 5 (see Fig. 1). It may include a guide groove 116 open toward.

The coupling groove 114 has a shape corresponding to the cross section of the coupling portion 132 of the polishing member 130. The coupling groove 114 may have a polygonal cross-sectional shape including a quadrangle. However, the cross-sectional shape of the coupling groove is merely an example and may be a circular or dovetail type.

The guide groove 116 guides the contact portion 134 connected to the coupling portion 132 when the coupling portion 132 slides along the coupling groove 114. In addition, the guide groove 116 serves as a passage for projecting the contact portion 134 contacting the surface to be polished 5 from the disk 110 in a state in which the coupling portion 132 is coupled to the guide groove 114.

According to this embodiment, since the polishing member 130 can be slidably coupled to the guide portion 112, installation and maintenance of the polishing wheel assembly is easy.

For reference, according to another embodiment, the coupling groove is formed in the polishing member, the guide portion may be inserted into the coupling groove of the polishing member. Even in this case, the polishing member can slide along the guide portion.

The polishing member 130 may include a coupling part 132 and a contact part 134. The coupling part 132 may be slidably coupled to the coupling groove 114 of the guide part 112. The contact portion 134 may contact the polishing target surface 5 (see FIG. 1).

Contact 134 extends from coupling 132. In this case, the contact portion 134 may extend to form a curved surface. The polishing member 130 is coupled to the disk 110 to polish the polishing target surface 5 (see FIG. 1).

In addition, the polishing member 130 may further include a plurality of diamonds 136 disposed on the side of the contact portion 134 facing the polishing target surface 5 (see FIG. 1). This diamond 136 can grind | polish the grinding | polishing object surface 5 (refer FIG. 1) more effectively.

According to the present exemplary embodiment, the guide part 112 may be formed in plural, and the plurality of guide parts 112 may be spaced apart from each other in the circumferential direction. In this case, the polishing member 130 may be formed in plurality in correspondence with the plurality of guide parts 112.

In this case, maintenance is convenient by replacing only the damaged abrasive member 130 when any one of the abrasive members 130 is damaged.

The polishing wheel assembly 50 according to the present exemplary embodiment may include a departure preventing part 150 for preventing the polishing member 130 from being separated from the disk 110.

In this regard, a space part 120 communicating with the inside of the plurality of guide parts 112 may be provided inside the disc 110. Accordingly, the extension member 130 may be slidably coupled inward from the outer side of the disk 110 or slidably coupled outward from the space 120 provided inside the disk 110.

In this case, the separation prevention unit 150 may be configured to include a coupling ring 152 and the cap 154. The coupling ring 152 prevents the polishing member 130 from being separated out of the disk 110 and the cap 154 prevents the polishing member 130 from being separated through the space 120.

According to another embodiment, the guide portion may be formed so that the inside thereof is closed. In more detail, the inner end of the engaging groove extending from the outer side of the disk to the inner side may be formed to be closed. Accordingly, the extension member 130 may be coupled to slide only inward from the outside of the disk 110.

In this case, the separation prevention portion may include a coupling ring. The coupling ring prevents the abrasive member from escaping out of the disc.

Although one embodiment of the present invention has been described above, the spirit of the present invention is not limited to the embodiments presented herein, and those skilled in the art to understand the spirit of the present invention are within the scope of the same idea, Other embodiments may be easily proposed by addition, modification, deletion, addition, etc., but this is also within the scope of the present invention.

1 is a view conceptually showing a polishing apparatus according to an embodiment of the present invention,

Figure 2 is a schematic exploded perspective view of a polishing wheel assembly according to an embodiment of the present invention.

<Description of the symbols for the main parts of the drawings>

10: drive unit

30: rotating shaft

50: polishing wheel assembly

110: disc

112: guide part

114: coupling groove

116: Guide groove

130: abrasive member

132: coupling part

134: contact portion

136: diamond

150: departure prevention part

152: coupling ring

154: cap

Claims (8)

A polishing wheel assembly for polishing a surface to be polished, A disk having a guide portion extending from the outside to the inside on a surface opposite to the polishing target surface; A polishing member including a coupling part slidably coupled to the guide part and a contact part extending from the coupling part to contact the polishing target surface; And Polishing wheel assembly including a departure preventing portion for preventing the polishing member is separated from the disk. The method of claim 1, The guide unit, A coupling groove extending from the outside of the disk to the inside, and the coupling portion slidably coupled thereto; And a guide groove connected to the coupling groove and open toward the polishing target surface. The method of claim 2, The coupling groove is a grinding wheel assembly, characterized in that having a cross-sectional shape of any one of a circular, dovetail type, polygon. The method according to any one of claims 1 to 3, The guide portion is made of a plurality, The plurality of guide parts are disposed spaced apart from each other in the circumferential direction, Polishing wheel assembly, characterized in that the polishing member is made of a plurality corresponding to the plurality of guide parts. The method of claim 4, wherein The polishing member, And a plurality of diamonds disposed on the side facing the polishing target surface of the contact portion. The method of claim 4, wherein Inside the disk is provided a space portion in communication with the inside of the plurality of guide portion, The departure prevention part, A coupling ring detachably coupled to an edge of the disk, And a cap inserted into the space portion and filling the space portion. The method of claim 4, wherein The inner side of the guide portion is formed to be closed, The departure prevention part, And a coupling ring detachably coupled to the edge of the disk. A drive unit; A rotating shaft connected to the driving unit; And Polishing apparatus comprising a polishing wheel assembly according to any one of claims 1 to 3, coupled to the rotary shaft.

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