JPH0683262U - Polishing tool - Google Patents

Abstract

(57) [Abstract] [Purpose] To provide an abrasive tool having an increased laminated thickness of abrasive cloth paper. [Structure] A large number of abrasive cloth papers 1 each having a predetermined width and cut out in an arc shape or a separated circular shape having at least approximately a half circumference or more.
With the abrasive grains on the front side and spirally stacking while overlapping one end to provide a cylindrical polishing body 2, and fixing the disk 4 to the back surface of the polishing body with an adhesive, Polishing is performed using the outer peripheral surface or surface of the polishing body.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a polishing tool of the type in which a large number of polishing cloth papers are fixed to the surface of a disk with an adhesive.

[0002]

[Prior art]

 As a conventional polishing tool made of abrasive cloth paper, as shown in JP-A-50-85985, a large number of abrasive cloth paper cut into strips are prepared so that their abrasive grain surfaces are on the long side. There is one in which one end edge of each is adhered and fixed to the surface of the disk radially from the center so that the free surfaces of the polishing cloths overlap each other.

[0003]

[Problems to be solved by the device]

 In the above polishing tool, since strip-shaped polishing cloth paper is used, the laminated thickness dimension of the polishing cloth paper on the surface of the disk is about two or three pieces of the polishing cloth paper.

For this reason, the polishing efficiency using the outer peripheral edge of the polishing cloth is extremely poor.

Further, since the long sides of the strip-shaped abrasive cloth paper pieces are intersected in the rotation direction, abrasion of the long edges on the rotation direction side progresses to the long edges on the opposite side in the rotation direction in a short time, so that the life is shortened. Is short.

[0006] Furthermore, since the fine abrasive powder and the abrasive particles that have separated from the polishing cloth paper piece during polishing enter between the subsequent polishing cloth paper piece and the work piece and there is no escape area, the polishing cloth paper piece is clogged. Occurs.

Therefore, there is a problem that the polishing efficiency is significantly reduced.

Therefore, it is an object of the present invention to provide a polishing tool having a significantly increased thickness, a significantly extended life, and capable of polishing efficiently and preventing clogging.

[0009]

[Means for Solving the Problems]

 In order to solve the above-mentioned problems, the present invention provides a large number of abrasive cloth papers having a predetermined width and cut out in an arc shape or a cut circle of at least approximately a half circumference or more, with the abrasive grains as the front and A cylindrical polishing body is provided by stacking in a spiral shape while overlapping with each other, and a disc is fixed to the back surface of this polishing body with an adhesive.

In addition, a large number of abrasive cloth papers each having a predetermined width and cut out in an arc shape or a cut circular shape having at least about a half circumference or more are spirally formed with the abrasive grains on the surface and one end overlapped. In addition to providing a cylindrical polishing body that is laminated in a circular shape, the overlapping surface of the polishing cloth paper is fixed with an adhesive, and the disk is fixed to the back surface of the polishing body with an adhesive. adopt.

Furthermore, a large number of abrasive cloth papers having a predetermined width and cut out in an arc shape or a cut-off circular shape of at least approximately a half circumference or more are formed into a spiral shape with the abrasive grains as the front and one end being overlapped. A cylindrical polishing body is provided by laminating on the back surface of the polishing body, and a disc is fixed to the back surface of the polishing body with an adhesive. Adopt the provided configuration.

In addition, a large number of abrasive cloth paper cut out in an arc shape or a cut circular shape having at least approximately a half circumference having a predetermined width and corners at predetermined intervals on the outer peripheral edge are shown in the table. The cylindrical polishing body is provided by stacking it in a spiral shape with one end overlapping, and the overlapping surface of the polishing cloth paper is fixed with an adhesive, and the back surface of the polishing body is circled with an adhesive. The plate is fixed.

Further, a large number of abrasive cloth papers, which have a predetermined width and have corners at predetermined intervals on the outer peripheral edge, are cut out in an arc shape or a cut circular shape of at least approximately a half or more, and the abrasive grains are A cylindrical polishing body is provided by stacking it in a spiral shape with one end overlapping, and at the same time, the overlapping surface of the polishing cloth paper is fixed with an adhesive, and the back surface of the polishing body is bonded with an adhesive. The disk is fixed via the above, and a plurality of cuts are provided inward from the outer peripheral surface of the polishing body at predetermined intervals.

[0014]

[Action]

 A disk is attached to the rotary shaft of the hand grinder, the polishing tool is rotated in one direction, and at the same time, the corners of the front end face and outer peripheral surface of the polishing body are pressed against the workpiece to perform polishing.

Further, when the adhesive or the stable film comes into contact with the object to be processed, it is worn away and the abrasive grains of the abrasive cloth paper are exposed, so that polishing can be performed.

Further, in polishing the protrusions, a polishing body is fitted on the outside of the protrusions, and the inner peripheral surface of the polishing body is used for polishing.

In addition, the fine abrasive powder and the abrasive particles that have been separated from the abrasive during polishing fit into the gaps of the cuts.

The polishing fine powder or the polishing particles fitted in the cuts are directed toward the outer peripheral surface of the polishing body by the centrifugal force generated by the rotation of the polishing tool, and are discharged from the outer ends of the cuts.

Further, when the polishing cloth paper of the surface layer constituting the polishing body is worn away by polishing, the polishing cloth paper of the next layer is exposed to maintain the polishing power.

[0020]

【Example】

 An embodiment of a polishing tool according to the present invention will be described below with reference to the accompanying drawings.

First Embodiment 1 shown in FIGS. 1 and 2 is an abrasive cloth paper which has a predetermined width and is cut out in an arc shape or a cut circular shape of at least approximately a half circumference or more.

The above-mentioned abrasive cloth paper 1 is not limited to the cut-off circle of FIG. 1 or the substantially half circumference of FIG. 2, but may be, for example, an arc shape having a length from the half circumference to the cut-off circle. Cutting methods include cutting and punching.

The above-mentioned many pieces of abrasive cloth paper 1 are provided with a cylindrical abrasive body 2 as shown in FIG. 3 by laminating them in a spiral shape while making the abrasive grains face up and overlapping one end thereof.

Further, as shown in FIG. 4, a disc 4 is fixed to the back end surface of the polishing body 2 via an adhesive 3.

In the illustrated case, the disc 4 has a diameter smaller than that of the polishing body 2, and when the outer peripheral surface of the polishing body 2 is used for polishing, the periphery of the disc 4 is attached to the workpiece. The contact is not made, but it is not always limited.

A through hole 5 is provided at the center of the disc 4, and the rotary shaft of the hand grinder is inserted through the through hole 5, and the disc 4 is fixed to the rotary shaft by tightening a nut. However, a protruding shaft (not shown) protruding from the disc 4 may be clamped.

On the back surface of the polishing body 2, the other end side of each of the abrasive cloth paper 1 overlaps and overlaps with each other, and the overlapped end portion is fixed to the disc 4 through the adhesive agent 3. The spiral laminated state of 1 is maintained.

Second Embodiment A polishing cloth paper 1, a polishing body 2 formed by using the polishing cloth paper 1, and a disk 4 fixed to the back surface of the polishing body 2 with an adhesive 3 are the same as those in the first embodiment. The description is omitted for the same reason.

When the polishing body 2 is formed, an adhesive 6 is interposed (applied) between the overlapping polishing cloth papers 1 as shown in FIG. 5 so that the polishing cloth paper 1 has a stable (strong) laminated state. maintain .

Third Embodiment A polishing cloth paper 1, a polishing body 2 formed by using the polishing cloth paper 1, and a disc 4 fixed to the back surface of the polishing body 2 with an adhesive 3 are the same as those in the first embodiment. The description is omitted for the same reason.

At least one of the inner and outer peripheral surfaces of the polishing body 2 is provided with a stabilizing film 7 for maintaining a stable laminated state of the laminated polishing paper 1 as shown in FIG.

The above-mentioned stabilizing film 7 is provided, for example, by applying an adhesive or a paint and is provided on the inner peripheral surface of the polishing body 2 in the case shown, but it may be provided only on the outer peripheral surface or on both the inner and outer peripheral surfaces. .

Fourth Embodiment As shown in FIGS. 7 and 8, as the abrasive cloth paper 1, one having corner portions 8 at a predetermined interval on the outer peripheral edge is used.

Although the dodecagonal corners 8 are provided in the case of the disc shape as shown in FIG. 7, the number of corners 8 may be freely increased or decreased.

A polishing body 2 for forming a polishing tool as shown in FIG. 9 using the abrasive cloth 1 having the above-mentioned corners 8, and a disc 4 fixed to the back surface of the polishing body 2 with an adhesive 3 are The description is omitted because it is similar to the first and second embodiments.

(Fifth Embodiment) As shown in FIG. 10, the polishing body 2 of the polishing tool formed in the same manner as in the fourth embodiment has a large number of strips extending inward from predetermined intervals on the outer peripheral surface. A notch 9 is provided.

The cut 9 may be provided in the abrasive cloth 1 and the abrasive cloth 1 may be laminated while the cuts 9 are aligned with each other, or the cut 9 may be processed in the abrasive body 2. In the case of the drawing, the depth of 9 is stopped before the inner peripheral edge to leave the continuous portion 10 so that the polishing body 2 is not divided, but it is not limited.

The cuts 9 are not limited to the corners shown, but may be provided at the corners.

[0039]

【effect】

 Since the polishing tool according to the present invention is configured as described above, the size of the laminated thickness of the polishing cloth paper is significantly increased.

Therefore, the polishing using the outer peripheral surface of the polishing body can be efficiently performed, and at the same time, the spiral line of the polishing cloth causes the polishing line to cross obliquely with respect to the axis line of the polishing body. The polishing efficiency is improved together with the polishing surface.

Further, since an arcuate or cut circular abrasive cloth paper having at least approximately half circumference is used, the abrasive cloth paper can be used until the abrasion of the abrasive cloth is from the front surface side edge to the back surface side edge. Therefore, the life is significantly extended and polishing can be performed by continuous operation for a long time.

Furthermore, the adhesive or the protective film on the overlapping surface of the polishing cloth paper can withstand high speed rotation and maintain a stable laminated state of the polishing cloth paper.

Further, when polishing is performed using the corners of the outer periphery of the polishing cloth paper, only the protrusions on the surface of the workpiece can be polished easily and efficiently, and at the same time, from the fine polishing powder or the pieces of polishing cloth paper. The removed abrasive grains fit into the notch on the opposite side of the rotation direction of the polishing tool, and due to the centrifugal force generated by the rotation of the polishing tool, move from the inside of the notch toward the outer peripheral direction of the abrasive, and then the abrasive Since it is released from the outer peripheral surface, clogging of the polishing cloth paper is prevented and polishing efficiency is significantly improved.

[Brief description of drawings]

FIG. 1 is a perspective view of a polishing cloth paper used in a polishing tool according to a first embodiment of the present invention.

FIG. 2 is a perspective view showing another embodiment of the abrasive cloth paper.

FIG. 3 is a perspective view of a polishing body formed by using a polishing cloth paper.

FIG. 4 is a vertical sectional front view of a polishing tool formed by using a polishing body.

FIG. 5 is a vertical sectional view showing a polishing tool according to a second embodiment.

FIG. 6 is a vertical sectional front view showing a polishing tool of a third embodiment.

FIG. 7 is a perspective view showing an abrasive cloth according to a fourth embodiment.

FIG. 8 is a perspective view showing an abrasive cloth paper of another embodiment.

FIG. 9 is a bottom view of a polishing tool formed by using the same polishing cloth paper.

FIG. 10 is a bottom view showing the polishing tool of the fifth embodiment.

[Explanation of symbols]

 1 Abrasive cloth paper 2 Abrasive body 3 Adhesive 4 Disc 5 Through hole 6 Adhesive 7 Stabilizing film 8 Corner 9 Notch

Claims (5)

[Scope of utility model registration request] 1. A large number of pieces of abrasive cloth paper having a predetermined width and cut out in an arc shape or a cut circular shape having at least approximately a half circumference or more are spirally formed with the abrasive grains on the front and one end overlapped. A polishing tool formed by laminating a cylindrical polishing body and fixing a disk to the back surface of the polishing body with an adhesive. 2. A large number of pieces of abrasive cloth paper having a predetermined width and cut out into an arc shape or a cut-out circular shape having at least approximately a half circumference or more are spirally formed with the abrasive grains on the surface and one end overlapped. A polishing tool in which a cylindrical polishing body is provided by stacking, the overlapping surface of the polishing cloth paper is fixed with an adhesive, and a disk is fixed to the back surface of the polishing body with an adhesive. 3. A plurality of pieces of abrasive cloth paper having a predetermined width and cut out in an arc shape or a cut-out circular shape having at least approximately a half circumference or more are spirally formed with the abrasive grains on the front and one end overlapped. A cylindrical polishing body is provided by stacking, a disc is fixed to the back surface of this polishing body with an adhesive, and a stable film of the polishing cloth paper is provided on at least one of the inner and outer peripheral surfaces of the polishing body. Polishing tool consisting of. 4. A large number of abrasive cloths cut out in an arc shape or a cut circle having at least approximately a half circumference having a predetermined width and corners at predetermined intervals on the outer peripheral edge, and the abrasive grains are listed on the front surface. , And a cylindrical polishing body is provided by stacking in a spiral shape while overlapping one end, and the overlapping surface of the polishing cloth paper is fixed with an adhesive, and the back surface of the polishing body is circled with an adhesive. Polishing tool made by fixing a plate. 5. A large number of abrasive cloths cut out in an arc shape or a cut circle having at least approximately a half circumference having a predetermined width and corners at predetermined intervals on the outer peripheral edge, and the abrasive grains are listed on the front surface. , And a cylindrical polishing body is provided by stacking spirally while overlapping one end, and the overlapping surface of the polishing cloth paper is fixed with an adhesive, and the back surface of the polishing body is circled with an adhesive. A polishing tool comprising a plate fixed to the polishing body, and a plurality of notches extending inward from predetermined positions on the outer peripheral surface of the polishing body.