JPH05329779A - Polishing tool - Google Patents

Abstract

PURPOSE:To provide a polishing tool which is used for removal of the burrs of a metallic material, or polishing of a wood surface, a plastic surface, and the surfaces of other materials to be polished. CONSTITUTION:A polishing tool 1 comprises a polishing member 3 and a fixing tool 4. The polishing member 3 is formed such that a plurality of wire rods 2 having a specified length are juxtaposed and bent in a state that a core is located at the central part in the direction of length thereof and inserted in a nipped state in a nipping metal 32 in a U-shape in cross section togetherwith the cores. The fixing tool 4 comprises a bottom part approximately in the shape of a disc and an outer side part 42 rising from the peripheral edge thereof. The polishing members 3 are juxtaposed in a plurality of rows and molded approximately in a circular shape and welded to the peripheral end of the bottom part of the fixing tool 4, and the outer side part 42 is brought into contact with the nipping.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention is for deburring metal materials,
The present invention relates to a polishing tool used for polishing or when polishing a surface of a wood, a plastic, or another material to be polished.

[0002]

2. Description of the Related Art As is well known, various kinds of polishing tools have been conventionally used for polishing the surface of various materials to be polished or removing burrs. The most common type of polishing tool is a brush, and in particular, as a polishing tool that is connected to a rotary shaft to perform continuous polishing, a fiber material is planted on a disk-shaped support. Things are known. Alternatively, as a fiber material having a high implantation strength, a plurality of fiber materials having a certain length are arranged in parallel and bent at a substantially central portion in the length direction with a core material interposed, and the bent portion is made into a core material. In addition, there is also known one in which a polishing member inserted and clamped in a clamp having a U-shaped cross section is welded and fixed to the support.

[0003]

However, when the above-mentioned conventional polishing tool is rotated at a high speed for the purpose of speeding up the work or the like, a centrifugal force exerts an outward stress. It was easy for an accident to occur when the car came off the support. Therefore, in order to prevent such an accident, it has been necessary to perform welding work with extremely high precision or to prevent the rotation from increasing above a certain speed.

On the other hand, the conventional polishing tool also has a problem that the fiber material is prone to tilt due to long-term use.

[0005]

SUMMARY OF THE INVENTION The present invention has been proposed in view of the above, and in a polishing tool comprising a polishing member and a fixture, the polishing member has a plurality of wire rods of a fixed length arranged in parallel, Bending with a core material at approximately the center in the length direction, the bent portion is inserted and clamped together with the core material in a clamping metal fitting having a U-shaped cross section, and the fixture is a substantially disc-shaped bottom surface portion. And an outer surface part where the peripheral edge of the bottom part is raised, a plurality of rows of polishing members are arranged side by side to form a substantially annular shape, and are fixed by welding to the peripheral end of the bottom part of the fixture and at the outside of the fixture. The present invention relates to a polishing tool, characterized in that a surface portion is brought into contact with a sandwiching member of a polishing member.

[0006]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described in detail below with reference to the embodiments of the drawings.

A polishing tool 1 according to a first embodiment of the present invention shown in FIGS. 1 and 2 has a polishing member 3 having wire rods 2 as polishing portions.
Are arranged side by side in a plurality of rows (two rows in the illustrated embodiment), formed into an annular shape, and fixed to a rotatable substantially cup-shaped fixture 4.

As the wire 2, metal fibers, natural fibers such as animal fibers and plant fibers, artificial fibers such as synthetic resin fibers and the like can be used, and one selected and used according to the application can be used. .. For example, if polishing effect is to be expected, polishing abrasive grains such as silicon carbide grains, alumina grains, and diamond grains having a grain size of 0.01 to 0.8 mm are fixed to the metal fibers or the surface, A synthetic fiber or the like containing the above abrasive grains may be used. If necessary, a plurality of types of fiber materials may be mixed and used.

Further, the polishing member 3 having the above-mentioned wire rods 2 as a polishing portion has a plurality of the wire rods 2 cut into a certain length and arranged in parallel with their end portions aligned, and the core member 3 at approximately the center in the length direction.
Bending with 1 interposed, the bent portion is the core material 3
1 is inserted into a sandwiching metal fitting 32 having a U-shaped cross section, and the upper end of the side portion of the sandwiching metal fitting 32 is crimped by a press or the like so that the wire rod 2 is clamped and fixed so as not to be pulled out.

The fixture 4 for fixing the polishing member 3 is
A substantially disc-shaped (doughnut-shaped disc shape with an opening at the center) bottom portion 41 and an outer side surface portion 42 in which a peripheral edge of the bottom portion 41 is raised.
The outer edge of the connecting member 6 provided at the upper end of the rotary rod 5 is fixed to the opening edge of the bottom rod 41.
Is connected to a rotary shaft (not shown) to make the polishing tool 1 rotatable.

The polishing tool 1 of the present invention comprises polishing members 3 and 3 which are arranged in parallel in the lateral direction and are bent and formed in a substantially annular shape in the lateral direction.
Is welded and fixed to the peripheral edge of the bottom surface portion 41 of the fixture 4, and is further brought into contact with the outer surface of the sandwiching metal fitting 32 of the polishing member 3 (located outside) at the outer surface portion 42 of the fixture 4. ..
The outer side surface portion 42 may be tilted so as to be pressed inward.

In the polishing tool 1 thus manufactured, since the outer side surface portion 42 is in contact with the polishing member 3 even when it is rotated at a high speed, the stress due to the centrifugal force causes the polishing member 3 and the bottom surface portion 41 of the fixing tool 4 to contact with each other. It is possible to perform stable polishing work without concentrating on the welded part and detaching.

The polishing tool 1 _{2 according to} the second embodiment of the present invention shown in FIG. 3 has a structure in which the polishing members 3 ₂ and 3 ₂ are fixed more stably. In this embodiment, the polishing member 3 ₂ fixture 4 _2, the rotation rod 5 _2, the connecting member 6 ₂ first embodiment polishing member 3 described above for the fixture 4, the rotation rod 5, identical to the connecting member 6 Therefore, the same reference numeral (for convenience sake, “ ₂ ” is attached) is attached and description thereof is omitted. At the opening edge of the fixture 4 ₂ in this embodiment, a standing piece-shaped inner side surface portion 7 is formed.
The second fixture 7 having ₂ was fixed to the connecting member 6 ₂ integrally with the fixture 4 ₂ . The second fastener 7, a donut disk-shaped flat portion 71 having an opening portion and the opening portion of substantially the same fixture 4 ₂ consists inner side surface portion 72 which launched the periphery of the flat portion 71, bottom portion 41 ₂ and the opening portion of the fixture 4 ₂ is fixed integrally shape by welding or the like to communicate with each other.

[0014] The polishing tool 1 _2, the polishing member 3 ₂ the peripheral edge of the bottom portion 41 ₂ of the polishing tool 1 in the same manner as in the fixture 4 ₂ described above,
3 ₂ is welded and fixed, and the outer surface portion 42 is attached to the polishing members 3 ₂ and 3 _2.
2 is abutted on the inner surface part 7 of the second fixture 7
By tilting 2 toward the outside and pressing it, the polishing member 3
₂ and 3 ₂ are fixed stably.

Furthermore, the grinding tool 1 ₃ of the third embodiment of the present invention shown in FIG. 4, the masking material to the upper end of the outer face 42 ₃ 8
Configuration other than the extended and is polishing tool 1 ₂ and substantially the same configuration as described above, its description is omitted with the same reference numerals (the convenience is attached to _"3".). The masking material 8 suppresses the wire rods 2 ... In addition, in the polishing tool 1 ₃ , the polishing member 3 ₃ (sandwiching the metal fitting 3 disposed inside)
2 ₃₎ polishing member 3 ₃ be disposed outwardly relative '(clamping bracket 32 _3') is the larger, respectively stable for polishing member 3 ₃ acting strongly stress due to centrifugal force 'is outside It is fixed to. Further, a female screw for screwing the male screws from below to the connecting member 6 ₃ instead of providing the rotary rod (e.g. may be provided on the head of the rotating rod.) Is threadably set in this embodiment.

Similar to the above-mentioned polishing tool 1 and polishing tool 1 ₂ , the polishing tool 1 ₃ is rotated at a high speed, and the polishing members 3 ₃ , 3 are rotated.
₃ 'is stably without desorption can be performed polishing, yet are wire 2 ₃ ... it is possible to perform stable polishing over time since no tilting.

The present invention has been described above based on the embodiments of the drawings, but the present invention is not limited to the above-mentioned embodiments, and can be carried out in any way as long as the configuration described in the claims is not changed. can do.

[0018]

In summary, according to the polishing tool of the present invention, the outer surface of the fixture is in contact with the sandwiching member of the polishing member.
Even if the polishing member is rotated at a high speed, the stress due to the centrifugal force is not concentrated on the welded portion between the polishing member and the fixture and is received by the outer surface portion, so that the polishing member is not detached and stable polishing can be performed.

Further, due to the above effects, it is not necessary to precisely weld the fixture and the polishing member as in the conventional case, and the manufacturing work is reduced.

Since it is only necessary to select the material of the wire rod according to the application, such an abrading tool is appropriately connected to the rotating mechanism to easily construct an abrading device or an abrading tool effective for various applications. be able to.

If the inner surface portion is provided around the fixture, the fixing of the polishing member becomes more stable, and the removal of the polishing member becomes less likely to occur.

Further, if a masking material is extended to the upper end of the outer side surface of the fixture, the wire rod can be prevented from tilting and polishing can be performed stably for a long period of time.

[Brief description of drawings]

FIG. 1 is a perspective view in which a part of a polishing tool according to a first embodiment of the present invention is cut away.

FIG. 2 is a cross-sectional view of the polishing tool of FIG.

FIG. 3 is a sectional view of a polishing tool according to a second embodiment of the present invention.

FIG. 4 is a sectional view of a polishing tool according to a third embodiment of the present invention.

[Explanation of symbols]

 1 Polishing Tool 2 Wire Rod 3 Polishing Member 31 Core Material 32 Clamping Metal Fitting 4 Fixing Tool 41 Bottom Part 42 Outer Side Part

Claims (4)

[Claims] 1. A polishing tool comprising a polishing member and a fixture, wherein the polishing member has a plurality of wire rods of a fixed length arranged in parallel, and the wire rod is bent substantially at the center in the lengthwise direction with a core material interposed therebetween. The bent portion is inserted and clamped together with a core material into a clamping metal fitting having a U-shaped cross section, and the fixing tool includes a substantially disc-shaped bottom surface portion and an outer side surface portion in which a peripheral edge of the bottom surface portion is raised, A plurality of rows of polishing members are arranged side by side and formed into a substantially annular shape, and are fixed by welding to the peripheral edge of the bottom surface of the fixture, and the outer side surface of the fixture is brought into contact with the sandwiching member of the polishing member. Polishing tool characterized by. 2. The polishing tool according to claim 1, wherein the fixing tool is provided with an upright inner side surface portion for pressing the sandwich metal fitting from the inside. 3. The polishing tool according to claim 1, further comprising a masking material extending from the upper end of the outer side surface of the fixture to prevent the wire rod from tilting. 4. The polishing tool according to claim 1, wherein a wire selected from one or more of metal fiber, natural fiber and artificial fiber is applied to the polishing member.