Brush-like Grindstone

a brush-like, grinding stone technology, applied in the direction of flexible wheel, grinding machine components, manufacturing tools, etc., can solve the problems of inferior grinding capacity, low hardness, inefficient grinding, etc., and achieve the effect of preventing breakag

Inactive Publication Date: 2010-02-18
XEBEC TECH CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

[0018]In the present invention, it is preferable to provide the plurality of linear grinding materials with elliptical or oval cross sections in which the minor axis faces the direction of curvature. By utilizing this configuration, the materials deform when excessive force is applied to the linear grinding materials, and the

Problems solved by technology

However, gritted nylon brushes, brass brushes, and wire brushes have low grit content and low hardness, and thus have i

Method used

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  • Brush-like Grindstone
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  • Brush-like Grindstone

Examples

Experimental program
Comparison scheme
Effect test

embodiment 1

Modification of Embodiment 1

[0056]Embodiment 1 described above has a configuration in which the plurality of linear grinding materials 2 are held in a holder 5 as a plurality of grinding material bundles 20, but a configuration may also be utilized in which a circumferential groove is formed in a outer peripheral side surface 57 of the holder 5, and the plurality of linear grinding materials 2 are held across the entire circumferential length of this circumferential groove.

Embodiment 2

[0057]FIGS. 2(A) and (B) are a perspective view and a side view of the brush-like grindstone of embodiment 2 of the present invention. With this embodiment and embodiments 3 to 8 below, the basic configuration is the same as in embodiment 1, and the descriptions thus employ the same symbols for parts having the same function. The brush-like grindstone 1 shown in FIGS. 2(A) and 2(B) also has a configuration that is similar to that of embodiment 1, in which bundles of long alumina fibers (long inorganic ...

embodiment 2

Modification of Embodiment 2

[0062]Embodiment 2 described above has a configuration in which the plurality of linear grinding materials 2 are held in a holder 5 as a plurality of grinding material bundles 20, but a configuration may also be employed in which a circumferential groove is formed in the outer peripheral side surface 57 of the holder 5, and a plurality of linear grinding materials 2 are held across the entire circumferential length of this circumferential groove.

Embodiment 3

[0063]FIGS. 3(A) and 3(B) are perspective and side views of the brush-like grindstone of Embodiment 3 of the present invention. The brush-like grindstone 1 in FIGS. 3(A) and 3(B), as with Embodiments 1 and 2, has a configuration in which fiber bundles of long aluminum fibers (long inorganic fibers) are impregnated with a resin, which is then caused to harden to produce linear grinding materials 2, a plurality of which are held in a metal holder 5. The holder 5 is a cylinder with a shaft hole 51 that pa...

embodiment 3

Modification of Embodiment 3

[0068]Embodiment 3 described above has a configuration in which the plurality of linear grinding materials 2 are held in a holder 5 as a plurality of grinding material bundles 20, but a configuration may also be employed in which a circumferential groove is formed in the outer peripheral side surface 57 of the holder 5, and a plurality of linear grinding materials 2 are held across the entire circumferential length of this circumferential groove.

Embodiment 4

[0069]FIGS. 4(A) and 4(B) are a perspective view and plan view of a brush-like grindstone of Embodiment 4 of the present invention. The brush-like grindstone 1 shown in FIGS. 4(A) and 4(B), as in Embodiment 1, has a configuration in which bundles of long alumina fibers (long inorganic fibers) are impregnated with a resin, which is caused to harden to produce linear grinding materials 2, a plurality of which are held in a metal holder 5. The holder 5 is cylindrical with a shaft hole 51 that is formed at...

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Abstract

A brush-like grindstone (1) has threadlike grinding elements (2) each being a thread that is a collection of long inorganic fibers and is impregnated with resin and solidified. To grind work (W), the grindstone (1) is moved relative to the work (W) with the forward ends of the threadlike grinding elements (2) pressed against the work (W). In order to prevent the grinding elements (2) from breaking, each threadlike grinding element (2) is curved from its base end to its forward end with high hardness of the grinding elements (2) maintained. Also, the grinding elements (2) are formed in an elliptic or oblong cross-sectional shape whose minor axis is aligned with the direction of the curve. Therefore, the grinding elements (2) have extremely high rigidity in the direction perpendicular to the direction of the curve but they easily deform in the direction of the curve. Consequently, the grinding elements (2) softly engages the work (W) at their forward ends and, when excessive force acts on the elements (2), the brush-like grindstone (1) does not break because the elements (2) deform to absorb the force.

Description

TECHNICAL FIELD[0001]The present invention relates to a brush-like grindstone that is used for burr removal and grinding processes.BACKGROUND ART[0002]Precision parts that are used for automobile and aircraft components are manufactured with high precision and accuracy by automated equipment such as NC benches, NC cutters, machining centers, robots and specialized processing equipment that employ tools such as end mills, drills, dies and taps. In addition, the frames and other parts of electronics equipment are produced from die-cast parts formed from magnesium and aluminum. Grinding processes are carried out on these workpieces using gritted nylon brushes, brass brushes, wire brushes, and the like in order to remove processing marks, tool marks, burrs and the like. However, gritted nylon brushes, brass brushes, and wire brushes have low grit content and low hardness, and thus have inferior grinding capacity due to their inferior stiffness, and there have thus been problems with ine...

Claims

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Application Information

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IPC IPC(8): B24D13/10B24D3/28
CPCB24B29/005B24D13/145B24D13/10B24D3/28B24D13/14
Inventor SHINODA, TATSUOARIMA, MARI
Owner XEBEC TECH CO LTD
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