Polishing jig and polishing device

Abstract

To provide a polishing jig and a polishing device that can equally polish the whole of a polished surface.SOLUTION: A polishing jig has a first face as a polishing surface, and a second face positioned on a side opposite to the first face. When the first face is viewed in plan, the first face has a short axis and a long axis extending in a direction crossing the short axis. When long sides of the first face along the long axis are so made as to be a first long side and a second long side, at least a part of the first long side has a circular arc shape bulging outward.SELECTED DRAWING: Figure 2

Description

[Technical field]

[0001] The disclosed embodiments relate to a polishing tool and a polishing apparatus. [Background technology]

[0002] 2. Description of the Related Art Conventionally, polishing jigs for hand lapping, which perform polishing work on an object by the movement of a worker's hand, are known. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Publication No. 10-329041 Summary of the Invention [Problem to be solved by the invention]

[0004] On the other hand, when trying to polish the bottom surface of a recess or a surface surrounded by ribs on all four sides, which are difficult to polish by mechanical processing, the polishing jig with a square polishing surface as in the above-mentioned conventional technology has a problem that it is difficult to polish the corners. This makes it difficult to polish the entire surface evenly.

[0005] The present disclosure has been made in consideration of the above, and has an object to provide a polishing jig and a polishing apparatus capable of evenly polishing the entire surface to be polished. [Means for solving the problem]

[0006] The polishing jig of the present disclosure has a first surface which is a polishing surface, and a second surface located on the opposite side of the first surface. When the first surface is viewed in plan, the first surface has a short axis and a long axis extending in a direction intersecting the short axis. When the long sides of the first surface along the long axis are defined as a first long side and a second long side, at least a portion of the first long side is an arc shape that bulges outward. Effect of the Invention

[0007] According to one aspect of the embodiment, it is possible to provide a polishing jig and a polishing apparatus capable of evenly polishing the entire surface to be polished. [Brief description of the drawings]

[0008] [Figure 1] FIG. 1 is a perspective view showing an example of the configuration of a polishing jig according to an embodiment. [Diagram 2] FIG. 2 is a plan view showing an example of the configuration of a first surface of the polishing jig according to the embodiment. [Diagram 3] FIG. 3 is a side view showing an example of the configuration of the polishing jig according to the embodiment. [Figure 4] FIG. 4 is a perspective view showing an example of the configuration of a polishing apparatus according to an embodiment. [Diagram 5] FIG. 5 is a plan view showing an example of the configuration of the first surface of the polishing jig according to Alternative Embodiment 1. As shown in FIG. [Figure 6] FIG. 6 is a plan view showing an example of the configuration of the first surface of a polishing jig according to another embodiment 2. As shown in FIG. [Figure 7] FIG. 7 is a plan view showing an example of the configuration of the first surface of a polishing jig according to another embodiment 3. As shown in FIG. [Figure 8] FIG. 8 is a side view showing an example of the configuration of a polishing jig according to another embodiment 4. As shown in FIG. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0009] Hereinafter, an embodiment of the polishing jig and polishing device disclosed in the present application will be described with reference to the accompanying drawings. Note that the present disclosure is not limited to the embodiments described below. In addition, each embodiment can be appropriately combined within a range that does not cause a contradiction in the processing contents. In addition, the same parts in each of the following embodiments are given the same reference numerals, and duplicated explanations will be omitted.

[0010] In addition, in the embodiments described below, expressions such as "even", "same", "orthogonal" and "parallel" may be used, but these expressions do not necessarily mean "even", "same", "orthogonal" and "parallel" strictly. In other words, each of the above expressions allows for deviations in, for example, manufacturing precision and installation precision.

[0011] In addition, in order to make the explanation easier to understand, each of the drawings referred to below may show an orthogonal coordinate system that defines mutually perpendicular X-axis, Y-axis, and Z-axis directions, with the Z-axis direction being the thickness direction of the polishing jig.

[0012] <Embodiment> First, the configurations of a polishing jig 1 and a polishing apparatus 100 according to an embodiment will be described with reference to Figs. 1 to 4. Fig. 1 is a perspective view showing an example of the configuration of the polishing jig 1 according to an embodiment. Fig. 2 is a plan view showing an example of the configuration of a first surface 2 of the polishing jig 1 according to an embodiment. Fig. 3 is a side view showing an example of the configuration of the polishing jig 1 according to an embodiment.

[0013] 1 and 3, a polishing jig 1 according to an embodiment may have a first surface 2 and a second surface 3. The first surface 2 may be a polishing surface that polishes a surface to be polished S (see FIG. 4) of an object.

[0014] The second surface 3 may be located on the opposite side to the first surface 2. As shown in Fig. 3, the second surface 3 may be, for example, parallel to the first surface 2. In addition, a side surface 4 may be located between the first surface 2 and the second surface 3.

[0015] The polishing jig 1 according to the embodiment may be mainly composed of, for example, cast iron, copper or tin, which allows the polishing surface S of a ceramic, glass or metal object to be polished to be polished satisfactorily.

[0016] 2, the first surface 2, which is a polished surface, may have a minor axis A1 and a major axis A2 when the first surface 2 is viewed in a plan view. The minor axis A1 may be an axis that overlaps with the shortest diameter on the first surface 2. The major axis A2 may extend in a direction intersecting with the minor axis A1 and overlapping with the longest diameter on the first surface 2. The major axis A2 may extend, for example, in a direction perpendicular to the minor axis A1.

[0017] In addition, in each drawing of the present disclosure, for ease of understanding, the minor axis A1 of the first surface 2 is drawn along the Y-axis direction, and the major axis A2 is drawn along the X-axis direction.

[0018] The first surface 2, which is the polishing surface, may have a first long side 20 and a second long side 30. The first long side 20 and the second long side 30 may be located along the long axis A2. The first long side 20 and the second long side 30 may be two sides located between a point 11 at which an edge of the first surface 2 intersects with the long axis A2 and a point 12 at which an edge of the first surface 2 intersects with the long axis A2.

[0019] For example, the first long side 20 may be a side passing through one point 13 where the side of the first surface 2 and the minor axis A1 intersect, and the second long side 30 may be a side passing through the other point 14 where the side of the first surface 2 and the minor axis A1 intersect.

[0020] Here, in the embodiment, the first long side 20 may include an arc portion 21 that bulges outward with respect to the center of the first surface 2. Such an arc portion 21 may be located, for example, so as to overlap with an arc C1 centered on point P1. This point P1 may be, for example, a point located on the opposite side of the first long side 20 with respect to the center of the first surface 2.

[0021] With a polishing jig having a rectangular polishing surface, the corners of the surface S to be polished must be polished only with the corners of the polishing surface, making it difficult to sufficiently polish the corners of the surface S to be polished. Therefore, with a polishing jig having a rectangular polishing surface, it is difficult to evenly polish the entire surface to be polished.

[0022] On the other hand, when at least a portion of the edge of the first surface 2, which is the polishing surface, is an arc-shaped portion that bulges outward, the corner of the surface S to be polished can be polished by the entire arc-shaped portion, i.e., the arc portion 21, so that the corner of the surface S to be polished can be polished sufficiently.

[0023] Thus, in the embodiment, since at least a portion of the first long side 20 is an arc-shaped portion that bulges outward, the corners of the surface to be polished S can be polished sufficiently, and the entire surface to be polished S, i.e., the corners and areas other than the corners, can be polished evenly and efficiently.

[0024] In the embodiment, the arc portion 21 of the first long side 20 may be an arc with a constant curvature. This allows the corner portion of the surface S to be polished efficiently when polishing the corner portion of the surface S exposed from the opening 101a (see FIG. 4) of the guide 101 (see FIG. 4) of the polishing apparatus 100 (see FIG. 4).

[0025] Therefore, according to the embodiment, the entire surface to be polished S can be polished evenly and efficiently.

[0026] In the embodiment, the second long side 30 may include an arc portion 31 that bulges outward with respect to the center of the first surface 2. Such an arc portion 31 may be located, for example, so as to overlap with an arc C2 centered on a point P2. This point P2 may be, for example, a point located on the opposite side of the second long side 30 with respect to the center of the first surface 2.

[0027] This allows the corners of the surface S to be polished to be sufficiently polished not only at the arc portion 21 of the first long side 20 but also at the arc portion 31 of the second long side 30. Therefore, according to the embodiment, a wider range of the surface S to be polished or a larger number of surfaces S to be polished can be evenly polished with one polishing jig 1.

[0028] In the embodiment, the arc portion 31 of the second long side 30 may be an arc with a constant curvature. This allows the corner portion of the surface S to be polished, exposed from the opening 101a of the guide 101 of the polishing apparatus 100, to be polished efficiently.

[0029] Therefore, according to the embodiment, the entire surface to be polished S can be polished evenly and efficiently.

[0030] 2, in an embodiment, the first long side 20 may be composed of an arc portion 21 and a connection portion 22. The connection portion 22 may be a curved portion that connects the arc portion 21 and the second long side 30.

[0031] In the embodiment, the connection portion 22 may bulge outward with respect to the center of the first surface 2. This allows the corners of the surface S to be polished to be polished not only by the arc portion 21 but also by the connection portion 22, so that the corners of the surface S to be polished can be polished efficiently.

[0032] Therefore, according to the embodiment, the entire surface to be polished S can be polished evenly and efficiently.

[0033] In addition, the second long side 30 may be configured with an arc portion 31 and a connection portion 32. This connection portion 32 may be a curved portion that connects the arc portion 31 and the first long side 20.

[0034] In the embodiment, the connection portion 32 may bulge outward with respect to the center of the first surface 2. This allows the corners of the surface S to be polished to be polished not only by the arc portion 31 but also by the connection portion 32, so that the corners of the surface S to be polished can be polished efficiently.

[0035] Therefore, according to the embodiment, the entire surface to be polished S can be polished evenly and efficiently.

[0036] In the embodiment, the ratio of the length of the minor axis A1 to the length of the major axis A2 may be 0.1 to 0.86, which makes it easier for an operator to hold the polishing jig 1, thereby enabling the corners of the surface S to be polished to be polished with even greater accuracy.

[0037] In the embodiment, the length of the minor axis A1 may be 20 mm to 60 mm. By making the length of the minor axis A1 20 mm or more, it is possible to easily bring the arcuate portion 21 of the first surface 2 into contact with a corner of the surface S to be polished. Furthermore, by making the length of the minor axis A1 60 mm or less, it is possible to reduce rattling of the polishing jig 1 when the polishing jig 1 is swung.

[0038] In the embodiment, the first surface 2 and the second surface 3 may be parallel to each other, and the distance between the first surface 2 and the second surface 3, that is, the thickness of the polishing jig 1 may be 10 mm to 60 mm.

[0039] By making the thickness of the polishing jig 1 10 mm or more, it is possible for an operator to easily grip the polishing jig 1. Furthermore, by making the thickness of the polishing jig 1 60 mm or less, when an operator places his / her hand on the second surface 3 to perform polishing processing, it is possible to easily transmit force to the first surface 2, which is the polishing surface, thereby reducing rattling of the polishing jig 1 when the polishing jig 1 is swung.

[0040] In the embodiment, the first surface 2 may have a plurality of grooves 40 extending in a direction intersecting the long axis A2. This allows the polishing debris to be held by the plurality of grooves 40, reducing the possibility of the polishing debris getting between the first surface 2 and the surface S to be polished and causing the surface S to be polished to become rough. Therefore, according to the embodiment, it is possible to obtain the surface S to be polished with even higher accuracy.

[0041] For example, in an embodiment, as shown in FIG. 2, a plurality of grooves 40 extending parallel to the minor axis A1 may be positioned side by side at predetermined intervals along the same direction as the major axis A2.

[0042] 3, corners 40a located at the openings of grooves 40 may be slightly chamfered with a chamfered shape of C0.2 mm or less. This allows the area of ​​first surface 2, which is the polishing surface, to be increased, so that surface S to be polished can be polished efficiently.

[0043] In the embodiment, the second surface 3 may have a C-surface or an R-surface. For example, as shown in Fig. 3, the second surface 3 may have a C-surface 3a. This can reduce the risk of a worker's hand being cut by the edge of the second surface 3 when the worker places his / her hand on the second surface 3 to perform a polishing process.

[0044] In the embodiment, the first surface 2 may have a C surface or an R surface. For example, as shown in Fig. 3, the first surface 2 may have a C surface 2a. This reduces the risk of the edge of the first surface 2 chipping and the resulting fragments getting between the first surface 2 and the surface S to be polished, thereby causing the surface S to be polished to become rough. Therefore, according to the embodiment, the surface S to be polished with even higher accuracy can be obtained.

[0045] In the present disclosure, the second surface 3 is not limited to having a C surface or an R surface, and the corners of the second surface 3 may have a slightly chamfered shape of C0.2 mm or less. This allows the area of ​​the first surface 2, which is the polishing surface, to be increased, allowing the surface to be polished S to be polished efficiently.

[0046] 4 is a perspective view showing an example of the configuration of a polishing apparatus 100 according to an embodiment. As shown in FIG. 4, the polishing apparatus 100 according to the embodiment may include the polishing jig 1 described above and a guide 101.

[0047] The guide 101 may have an opening 101a. The guide 101 exposes the surface S to be polished through this opening 101a, and covers areas other than the surface S to be polished to prevent such areas from being polished by mistake. The opening 101a may be, for example, circular in a plan view.

[0048] In an embodiment, when the opening 101a is circular in a planar view, the curvature of the opening 101a and the curvature of the arc portion 21 of the first long side 20 may be the same, for example, the difference between the curvature of the opening 101a and the curvature of the arc portion 21 may be ±0.3 mm or less.

[0049] This allows the first long side 20 of the polishing jig 1 to swing smoothly along the corner of the opening 101a. Therefore, according to the embodiment, the entire surface S to be polished can be polished evenly and efficiently.

[0050] In the embodiment, a slurry (not shown) may be applied to the surface S to be polished in the polishing process by the polishing apparatus 100. This makes it possible to obtain the surface S to be polished with high accuracy.

[0051] The slurry may contain diamond grains with a grain size of 0.5 μm to 60 μm as abrasive grains. This allows the polished surface S to be polished with even higher accuracy. The abrasive grains may be SiC powder, which is called GC abrasive grains. The SiC powder may also have a grain size similar to that of the diamond grains.

[0052] <Another embodiment 1> Next, various other embodiments of the present disclosure will be described with reference to Fig. 5 to Fig. 8. Fig. 5 is a plan view showing an example of the configuration of the first surface 2 of the polishing jig 1 according to another embodiment 1.

[0053] 5, in the polishing jig 1 according to another embodiment 1, the first surface 2 which is the polishing surface may have a plurality of lattice-shaped grooves 40. This allows the polishing waste held in the plurality of grooves 40 to be smoothly discharged from the plurality of grooves 40.

[0054] Therefore, according to the embodiment, it is possible to reduce the damage to the polished surface S (see FIG. 4) caused by polishing debris clogging the grooves 40, and therefore it is possible to obtain a polished surface S with higher accuracy.

[0055] <Another embodiment 2> Fig. 6 is a plan view showing an example of the configuration of the first surface 2 of the polishing jig 1 according to another embodiment 2. As shown in Fig. 6, in the polishing jig 1 according to another embodiment 2, the shape of the second long side 30 on the first surface 2 is different from that of the above-mentioned embodiment.

[0056] Specifically, in alternative embodiment 2, the second long side 30 may be linear. For example, as shown in Fig. 6, the second long side 30 may be parallel to the long axis A2.

[0057] 6, the first surface 2 may have a first short side 50 and a second short side 60 that respectively connect both ends of the second long side 30 and both ends of the first long side 20. For example, the first short side 50 and the second short side 60 may be straight lines parallel to the minor axis A1.

[0058] Even with such a planar shape, the first long side 20 includes the outwardly bulging arc portion 21, so that the corners of the surface to be polished S (see FIG. 4) can be polished sufficiently. Therefore, according to the second alternative embodiment, the entire surface to be polished S can be polished evenly.

[0059] In another embodiment 2, when the opening 101a (see FIG. 4) of the guide 101 (see FIG. 4) is polygonal in plan view, the second long side 30 of the polishing jig 1 can be smoothly swung along the corners of the opening 101a. Therefore, according to the another embodiment 2, the entire surface S to be polished can be polished evenly and efficiently.

[0060] <Another embodiment 3> Fig. 7 is a plan view showing an example of the configuration of the first surface 2 of the polishing jig 1 according to another embodiment 3. As shown in Fig. 7, in the polishing jig 1 according to another embodiment 3, the overall shape of the first surface 2 is different from those of the above-mentioned embodiment and another embodiment 2.

[0061] Specifically, in another embodiment 3, the first surface 2 may have a first short side 50 and a second short side 60 that respectively connect both ends of the first long side 20 having the arc portion 21 to both ends of the second long side 30 having the arc portion 31. For example, the first short side 50 and the second short side 60 may be straight lines parallel to the minor axis A1.

[0062] Even with such a planar shape, the first long side 20 includes the outwardly bulging arc portion 21, so that the corners of the surface to be polished S (see FIG. 4) can be polished sufficiently. Therefore, according to the third alternative embodiment, the entire surface to be polished S can be polished evenly.

[0063] In another embodiment 3, since the second long side 30 includes an arc portion 31 that bulges outward, in addition to the arc portion 21 of the first long side 20, the arc portion 31 of the second long side 30 can also sufficiently polish the corners of the surface S to be polished.

[0064] Therefore, according to the third alternative embodiment, a wider range of the surface S to be polished or a larger number of the surfaces S to be polished can be polished evenly with one polishing jig 1.

[0065] <Another embodiment 4> Fig. 8 is a side view showing an example of the configuration of a polishing jig 1 according to another embodiment 4. As shown in Fig. 8, in the polishing jig 1 according to another embodiment 4, the shape of the side opposite to the first surface 2 is different from that of the above-mentioned embodiments.

[0066] Specifically, in another embodiment 4, a gripping part 5 for gripping the polishing jig 1 may be located on the opposite side of the first surface 2. The second surface 3 may be located on the opposite side of the gripping part 5 from the first surface 2.

[0067] This allows the polishing jig 1 to be easily grasped by the hand of an operator, so that the corners of the surface S to be polished can be polished with even greater precision.

[0068] In another embodiment 4, the second surface 3 of the grip portion 5 may have a C-surface or an R-surface. For example, as shown in Fig. 8, the second surface 3 of the grip portion 5 may have a C-surface 3a. This can reduce the risk of a worker's hand being cut by the edge of the second surface 3 when the worker places his or her hand on the second surface 3 to perform a polishing process.

[0069] Although the embodiment of the present disclosure has been described above, the present disclosure is not limited to the above embodiment, and various modifications are possible without departing from the spirit of the present disclosure. For example, in the above embodiment, the second surface 3 is parallel to the first surface 2, but the present disclosure is not limited to such an example.

[0070] For example, in the present disclosure, the polishing jig 1 may be a cone shape with the first surface 2 as the bottom surface. In this case, the second surface 3 is a cone surface of such a cone shape. With this, too, the corners of the surface S to be polished can be polished sufficiently, since the first long side 20 includes the arc portion 21 that bulges outward.

[0071] Further advantages and other aspects may readily occur to those skilled in the art. Thus, the disclosure in its broader aspects is not limited to the specific details and representative embodiments shown and described above. Accordingly, various modifications may be made without departing from the spirit or scope of the general inventive concept as defined by the appended claims and equivalents thereof.

[0072] The present technology can also be configured as follows. (1) A polishing surface having a first surface and a second surface located opposite the first surface, When the first surface is viewed in a plan view, the first surface has a minor axis and a major axis extending in a direction intersecting the minor axis, When the long sides of the first surface along the long axis are defined as a first long side and a second long side, at least a part of the first long side is an arc shape that bulges outward. Polishing jig. (2) The arc-shaped portion of the first long side is an arc with a constant curvature. The polishing jig described in (1) above. (3) At least a portion of the second long side is an arcuate shape that bulges outward. The polishing jig according to (1) or (2) above. (4) The ratio of the length of the minor axis to the length of the major axis is 0.1 to 0.86. The polishing jig according to any one of (1) to (3) above. (5) The length of the minor axis is 20 mm to 60 mm. The polishing jig according to any one of (1) to (4) above. (6) the first surface and the second surface are parallel; The distance between the first surface and the second surface is 10 mm to 60 mm. The polishing jig according to any one of (1) to (5) above. (7) Cast iron, copper or tin based The polishing jig according to any one of (1) to (6) above. (8) The first surface has a plurality of grooves extending in a direction intersecting the major axis. The polishing jig according to any one of (1) to (7) above. (9) The corners located at the openings of the grooves are slightly chamfered to a diameter of C0.2 mm or less. The polishing jig described in (8) above. (10) The second surface has a C surface or an R surface. The polishing jig according to any one of (1) to (9) above. (11) The polishing jig according to any one of (1) to (10), A guide that covers the periphery of the surface to be polished; A polishing apparatus comprising: (12) The guide has a circular opening in a plan view, The curvature of the opening is the same as the curvature of the arc-shaped portion of the first long side. The polishing apparatus according to (11) above. [Explanation of symbols]

[0073] 1 Polishing jig 2 Front page 2a C side 3 Side 2 3a C side 20 First long side 21 Arc section 22 Connection 30 Second long side 31 Arc section 32 Connection 40 grooves 40a Corner 100 Polishing equipment 101 Guide 101a opening A1 Short axis A2 long axis S Surface to be polished

Claims

1. A polishing surface is a first surface, and a second surface is located opposite to the first surface. When the first surface is viewed in a plan view, the first surface has a minor axis and a major axis extending in a direction intersecting the minor axis, When the long sides of the first surface along the long axis are defined as a first long side and a second long side, at least a part of the first long side is an arc shape that bulges outward. Polishing jig.

2. The arc-shaped portion of the first long side is an arc with a constant curvature. The polishing jig according to claim 1 .

3. At least a portion of the second long side is an arcuate shape that bulges outward. The polishing jig according to claim 1 or 2.

4. The ratio of the length of the minor axis to the length of the major axis is 0.1 to 0.

86. The polishing jig according to claim 1 or 2.

5. The length of the minor axis is between 20 mm and 60 mm. The polishing jig according to claim 1 or 2.

6. the first surface and the second surface are parallel; The distance between the first surface and the second surface is 10 mm to 60 mm. The polishing jig according to claim 1 or 2.

7. Cast iron, copper or tin based The polishing jig according to claim 1 or 2.

8. The first surface has a plurality of grooves extending in a direction intersecting the major axis. The polishing jig according to claim 1 or 2.

9. The corners located at the openings of the grooves are slightly chamfered to a diameter of C0.2 mm or less. The polishing jig according to claim 8.

10. The second surface has a C surface or an R surface. The polishing jig according to claim 1 or 2.

11. The polishing jig according to claim 1 or 2, A guide that covers the periphery of the surface to be polished; A polishing apparatus comprising:

12. The guide has a circular opening in a plan view, The curvature of the opening is the same as the curvature of the arc-shaped portion of the first long side. The polishing apparatus according to claim 11.

Images