JP5357922B2 - Slurry scattering prevention shield for liquid honing - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To prevent a shield member used in liquid honing processing from being worn by slurry jet out of a jet gun to hit the shield member. <P>SOLUTION: A disc-shaped bottom plate made of a wear-resistant material is set removably on the inner diameter bottom face of a cup body which is made of a wear-resistant material and has a diameter-expanded flange part formed integrally on an opening end of a cylindrical part with a bottomed cylindrical shape. <P>COPYRIGHT: (C)2013,JPO&amp;INPIT

Description

  The present invention relates to equipment used in liquid honing processing, and more particularly to a slurry scattering prevention shielding tool used in liquid honing processing.

  Liquid honing, in which a slurry, which is a suspension of fine abrasives dispersed in water, is sprayed toward the surface of a workpiece, is often used for surface treatment of metal parts and various resin processed products.

JP2008-132542

None

  In this liquid honing process, the slurry is sprayed at high speed by high-pressure air, so that the slurry scatters not only on the object to be processed but also on jigs and peripheral equipment, which causes the surface to be worn away. There was to give. This phenomenon is particularly noticeable when a material with high machinability such as alumina is used as the abrasive, and when the slurry that has passed through the workpiece collides or bounces off the surface of the workpiece, it is localized. In some cases, severe friction occurred.

  For this reason, as shown in FIG. 1, a wear-resistant shielding plate 9 such as natural rubber is positioned behind the workpiece 8 facing the spray gun 6 and passes through the hole 10 of the workpiece 8. In other words, the slurry 7 that has bounced off the surface of the workpiece 8 is shielded from splashing toward peripheral devices or jigs. However, with the passage of time, the shielding plate 9 itself was also worn by the impact of the slurry 7, and eventually a phenomenon that a local wear spot 11 had a hole occurred, which was not always satisfactory.

  Therefore, as shown in FIG. 2, a cup-shaped shielding material 14 made of a wear-resistant material is integrally formed with a flange portion 3 having an enlarged diameter on the opening end side of a cylindrical portion 2 having a bottomed cylindrical shape. The cylindrical portion 2 is fitted into the through-hole 12 of the shielding plate 13 made of a wear-resistant material in which the through-hole 12 having an inner diameter slightly larger than the outer diameter of the cylindrical portion 2 is formed. For preventing wear, the cup-type shielding material 14 is positioned so that the opening end of the shielding material 14 is directed in the direction of the spray gun 6 and there is a possibility that severe abrasion may occur locally due to the collision of the slurry 7. A shield was proposed.

  In this wear prevention shield, since the cup-type shielding material 14 is located at the position where the slurry 7 reaches, the slurry 7 reflected from the internal space 15 of the cup-type shielding material 14 and the spray gun 6 are injected. The slurry 7 that has reached the internal space 15 with a large kinetic energy collides and interferes with each other, so that the large kinetic energy of the slurry 7 is significantly attenuated. Although the phenomenon of scratching does not occur easily, local wear can be remarkably reduced, but the phenomenon that the inner bottom surface 16 is worn by the slurry 7 sprayed from the spray gun 6 is completely prevented. The inner bottom surface 16 is gradually worn by continuous use, and the entire cup type shielding material 14 must be replaced when the wear progresses. No, in the cost of view, it was not necessarily satisfactory.

  The present invention has been studied to solve the above-mentioned conventional problems regarding the wear of jigs and peripheral equipment surfaces due to the scattering of slurry used in liquid honing processing, and as a result, effectively prevents wear due to the scattering of slurry. The present inventors have succeeded in developing an anti-wear device that can be used repeatedly and can be used repeatedly, and is excellent in cost, and is proposed as an invention here.

  Disc shape made of wear-resistant material on the inner diameter bottom surface of the cup body, which is made of a wear-resistant material and is integrally formed with a diameter-expanded collar on the opening end side of the cylindrical portion having a bottomed cylindrical shape The above-mentioned problem was solved by removing the bottom plate and installing the shield plate for preventing slurry scattering.

  The cup body is opened for use by directing the direction of the spray gun and in a portion where the slurry to be sprayed may collide directly or indirectly to cause severe wear. At this time, the slurry sprayed from the spray gun passes through the workpiece and reaches the cup body, but the slurry having kinetic energy repeatedly collides with each other in the inner space of the cup body to attenuate the kinetic energy. I will let you. At this time, the bottom plate installed on the bottom surface of the cup body is exposed to the direct impact of the slurry and gradually wears. When the wear progresses to some extent, the bottom plate is removed and replaced with a new bottom plate. For example, the cup body can be used as it is.

  As described above, the slurry scattering prevention shielding tool can be used for a long period of time by simply replacing the bottom plate, and has an effect of preventing slurry scattering at an extremely low cost.

Explanatory drawing of the prior art example of the shielding tool for slurry scattering prevention. Explanatory drawing of the shielding tool for slurry scattering prevention proposed in Unexamined-Japanese-Patent No. 2008-132542. The longitudinal cross-sectional view of Example 1 of the shielding tool for slurry scattering which concerns on this invention. Similarly, the longitudinal cross-sectional view of the state before installing the baseplate 5. FIG. Similarly, it is explanatory drawing of the state currently actually used for scattering prevention of a slurry.

  The greatest feature is that a bottom plate having wear resistance is detachably installed on the bottom surface of the cup body.

  3 and 4, reference numeral 1 in the figure denotes a cup body that is a main component of the slurry scattering preventing shield according to the present invention. The cup body 1 is made of a material having wear resistance such as natural rubber. The flange portion 3 having an enlarged diameter is integrally formed on the opening end side of the cylindrical portion 2 having a bottomed cylindrical shape. The inner diameter side of the cylindrical portion 2 gradually decreases in diameter toward the bottom, that is, in the bottom direction, and is tapered.

  Further, on the bottom surface 4 of the cup body 1, a bottom plate 5 made of a wear-resistant material such as natural rubber and having a disk shape having a thickness is detachably installed. It is important that the bottom plate 5 has a certain thickness and is detachably installed. The larger the thickness, the slower the progress of wear and the less frequently the cup body 1 is replaced. If it is too thick, the volume of the inner space of the cup body 1 becomes small, and it is not preferable because there is not enough space for the slurry 7 having kinetic energy to collide with each other.

  Also, as shown in FIG. 4, the bottom plate 5 is installed on the bottom surface 4 so that the bottom plate 5 has an outer diameter slightly larger than the inner diameter in the vicinity of the bottom surface 4, and the elasticity of the material itself is provided. It can be used by fitting, or an adhesive layer can be provided between the bottom plate 5 and the floor surface 4 for adhesion, or a hook-and-loop fastener can be attached to the bottom plate 5 and the bottom surface 4 respectively. For example, the bottom plate 5 may be detached from the bottom surface 4 as necessary.

  The slurry scattering preventing shield according to the present invention has the configuration as described above. As shown in FIG. 5, the slurry is sprayed with the opening side of the cup body 1 directed toward the spray gun 6. 7 is placed in a portion where it may collide directly or indirectly to cause severe local wear.

  At this time, the slurry 7 injected from the injection gun 6 passes through the workpiece 8 and reaches the cup body 1, but the slurry 7 having kinetic energy collides with each other in the internal space of the cup body 1. Repeatedly, the kinetic energy is attenuated. At this time, the bottom plate 5 installed on the bottom surface 4 of the cup body 1 is exposed to the direct collision of the slurry 7 and gradually wears, but when the wear progresses to some extent, the bottom plate 5 is removed, If the base plate 5 is replaced with a new one, the cup body 1 can be used as it is.

  As described above, this slurry scattering prevention shield can be used for a long period of time simply by replacing the bottom plate 5, and has an effect of preventing slurry scattering at an extremely low cost.

  It can be used in various industrial fields that perform liquid honing such as metal processing, semiconductor manufacturing, and plastic processing.

1. 1. Cup body 2. Cylindrical part Collar part 4. Bottom surface 5. Bottom plate 6. 6. Spray gun Slurry 8. 8. Processing object Shield plate 10. Hole 11. Local wear spot 12. Through hole 13. Shielding plate 14. Cup-shaped shielding material 15. Internal space 16. Bottom

Claims (1)

  Disc shape made of wear-resistant material on the inner diameter bottom surface of the cup body, which is made of a wear-resistant material and is integrally formed with a diameter-expanded collar on the opening end side of the cylindrical portion having a bottomed cylindrical shape A shield for preventing slurry scattering used for liquid honing processing, wherein the bottom plate of the steel plate is freely installed.

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