JPH063564U - Polishing device having laminated abrasive - Google Patents

Abstract

(57) [Summary] [Object] An object of the present invention is to provide a laminated abrasive capable of polishing a curved surface and also capable of easily polishing a convex portion protruding to a flat surface or the like. [Structure] A disk-shaped abrasive 12 having flexibility so that its axis coincides with the axis of a rotating drive shaft.
・ Multiple layers are provided.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a polishing device having laminated abrasives.

[0002]

[Prior art]

 Conventionally, polishing work has been performed in metal surface treatment, for example, in the finishing of plating. As a polishing method, there is a method of polishing the surface by pressing a disk-shaped polishing plate 2 against a polishing surface as shown in FIG. Further, as shown in FIG. 6, it is known that a columnar abrasive material 3 having abrasive grains coated on the peripheral surface with a medium such as an adhesive or oil is rotated, and the peripheral surface of the abrasive material 3 is used for polishing. It The abrasives 2 and 3 are both hard and will not deform. On the other hand, castings and the like are polished by using a ring-shaped rotary grindstone having a predetermined width.

[0003]

[Problems to be solved by the device]

 However, since the conventional abrasives as described above are hard, the flat surface can be smoothly polished, but the curved surface cannot be polished. Particularly in the case of a concave curved surface, it is difficult to polish along the curvature of the concave curved surface. In addition, the same difficulty occurs with a convex curved surface. Further, when the surface has a small convex portion, in order to polish the portion of the convex portion, it is necessary to polish the periphery of the convex portion, and separately perform the peripheral surface of the convex portion. This requires a lot of work. On the other hand, when using a rotating grindstone, the polishing surface may be damaged when the rotating grindstone hits the polishing surface. In addition, the rotating grindstone may be cracked due to fatigue, etc., which is dangerous. Therefore, an object of the present invention is to provide a laminated abrasive capable of polishing a curved surface and easily polishing a convex portion protruding to a flat surface or the like.

[0004]

[Means for Solving the Problems]

 In order to solve the above problems, the present invention has the following configuration. That is, it is characterized in that a plurality of disc-shaped abrasives having flexibility are laminated on the rotating drive shaft so that the axis of the drive shaft coincides with that of the drive shaft.

[0005]

[Action]

 The operation will be described. By pressing the laminated abrasives against the polishing surface while rotating, if there are protrusions, the protrusions can be sandwiched between them for polishing, and in the case of a curved surface, deformation can be performed along the curved surface for polishing.

[0006]

【Example】

 Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. FIG. 1 shows an exploded view of a polishing apparatus according to the present invention. FIG. 2 is a front view showing the abrasive. The abrasive material 12 according to the present invention is formed in a disk shape and has a donut shape in which a fixing through hole 12a is formed in the center. Further, the abrasive 12 is a non-woven fabric, which is formed by joining fiber materials having abrasive grain surfaces together by a joining material. In particular, the abrasive material is formed by forming a nonwoven fabric having a predetermined thickness into a sheet shape and punching this sheet material into a ring shape. Therefore, the abrasive 12 is flexible. The finish of polishing differs depending on the material of the fiber material.

Here, a structure of a holder for holding a plurality of the above-mentioned abrasives 12 in a laminated state and a rotation driving device will be described. The holder 20 holds a plurality of abrasives 12 ... In a laminated state. Arc-shaped plates 22a and 22a (only one is shown) and arc-shaped plates 23a and 23a are provided at opposing positions on the facing surfaces of the two holding plates 22 and 23 constituting the holder 20, respectively. The arc-shaped plates 22a, 22a and the arc-shaped plates 23a, 23a are located inside the peripheral edges of the holding plates 22 and 23, and are outside the arc-shaped plates 22a, 22a and the arc-shaped plates 23a, 23a of the holding plates 22, 23. The peripheral portions of are designated as pressing portions 22c and 23c. Virtual circles drawn along the outer peripheral surfaces of the arc-shaped plates 22a, 22a and the arc-shaped plates 23a, 23a are formed in the same manner, and each virtual circle has the same diameter as the through hole 12a of the abrasive 12.

A guide tube 22d is provided at the center of the holding plate 22 in the same direction as the arc-shaped plates 22a, 22a. On the other hand, also in the center of the holding plate 23, a guide tube 23d is provided in the same direction as the arc-shaped plates 23a, 23a. In addition, the other guide tube 22d can be fitted and inserted into the through hole 23e of the one guide tube 23d. A through hole 22e is also formed in the other guide cylinder 22d. The holder 20 is assembled in a state in which the other guide cylinder 22d is fitted in the through hole 23e of the one guide cylinder 23d, and is fixed by the set screw 30. The set screw 30 is inserted from the outside of the holding plate 23 into the through hole 23e, and is projected to the outside of the holding plate 22. A screw 30a is screwed to the protruding tip of the set screw 30. A stopper 32 is screwed onto the protruding screw 30a, and the holding members 22c and 23c of the holding plates 22 and 23 hold the abrasives 12 ... In a laminated state. The stopper 32 has a female screw portion 32a formed at one end with which the screw 30a of the set screw 30 is screwed, and a shaft 32b inserted into and fixed to the shaft hole 36a of the rotary drive device 36 at the other end.

The holder 20 has two holding plates 22 in accordance with the number of abrasives 12 ... With the other guide tube 22d fitted in the through hole 23e of the one guide tube 23d. A distance of 2 3 can be adjusted. Further, it is preferable that the positions of the arc-shaped plates 22a, 22a of the holding plate 22 and the positions of the arc-shaped plates 23a, 23a of the holding plate 23 are shifted by 90 degrees in the circumferential direction.

As described above, the polishing material 12 is held in the holder 20, the rotary drive device 36 is mounted, and the polishing operation is performed. When the polishing surface 40 is flat, polishing is performed by pressing the peripheral side surface of the polishing material group of the polishing materials 12 ... FIG. 3 shows a polishing state in which the polishing surface 40 has protrusions 42. In this case, the portion of the protrusion 42 can be polished by sandwiching the protrusion 42 between the abrasives 12, 12. The protrusion 42 may be a simple convex portion or a convex strip, and may be similarly polished. Further, when polishing the concave curved polishing surface 44, the peripheral surface portion constituted by the laminated abrasives 12 ... Group is deformed and polishing can be performed along the polishing surface 44 (see FIG. 4). ).

Depending on the material, the abrasives 12 ... In the above-mentioned examples can be used for polishing the surface, peeling off the coating on the surface once coated, and polishing. Although various explanations have been given with reference to the preferred embodiments of the present invention, the present invention is not limited to the above embodiments, and many modifications can be made without departing from the spirit of the invention. Is.

[0012]

[Effect of device]

 Since the polishing apparatus having the laminated polishing material according to the present invention is provided by laminating a plurality of flexible disk-shaped polishing materials, it is strong against the polishing surface like a grindstone. It won't hurt you. In addition, the grindstone does not crack and scatter as in the past. Further, even when the polishing surface has a protrusion, the side surface of the protrusion can be simultaneously polished while the abrasive material for laminating the protrusion is sandwiched to escape. Further, when the polishing surface is a curved surface, the laminated abrasives can be deformed and can be polished along the curved surface. Furthermore, since the polishing material has flexibility, it exhibits remarkable effects such as less vibration and noise.

[Brief description of drawings]

FIG. 1 is an exploded view of a polishing apparatus having laminated abrasives according to the present invention.

FIG. 2 is a front view of an abrasive according to the present invention.

FIG. 3 is an explanatory diagram showing a state in which a polishing surface having projections is polished by a laminated abrasive.

FIG. 4 is an explanatory diagram showing a state in which a curved polishing surface is polished by a laminated abrasive.

FIG. 5 is an explanatory diagram showing a conventional polishing method.

FIG. 6 is an explanatory view showing a conventional polishing method.

[Explanation of symbols]

 12 Abrasive material 12a Through hole 20 Holder 22 Holding plate 23 Holding plate 30 Set screw 32 Stopper 36 Rotation drive device 40 Polishing surface

Claims (1)

[Scope of utility model registration request] 1. A laminated abrasive comprising a plurality of disc-shaped abrasives having flexibility laminated on a rotating drive shaft so that the axis of the drive shaft coincides with that of the drive shaft. Polishing apparatus having a.