JP5115352B2 - Grinding equipment and cutting equipment - Google Patents

Description

  The present invention relates to an apparatus for grinding or cutting a workpiece.

  Patent Document 1 discloses a grinding tool composed of two grinding members. As shown in FIG. 4 of Patent Document 1, the two grinding members (the grinding tool portion 5 and the grinding tool portion 7) have a structure that meshes with each other. As shown in FIG. 1 of Patent Document 1, the grinding tool portion 5 includes a grinding surface circumferential region 6A and a grinding surface side surface 6C. An R surface is formed between the grinding surface circumferential region 6A and the grinding surface side surface 6C. The grinding tool portion 7 includes a grinding surface circumferential region 6B and a grinding surface side surface 6D. An R surface is formed between the grinding surface circumferential region 6B and the grinding surface side surface 6D. Patent Document 1 does not describe in detail the shape of the R surface between the grinding surface circumferential regions 6A and 6B and the grinding surface side surfaces 6C and 6D. By rotating the grinding tool portions 5 and 7, the workpiece can be ground by the grinding surface circumferential regions 6A and 6B and the grinding surface side surfaces 6C and 6D. Further, an R surface is formed on the workpiece by the R surface between them. The grinding tool portion 7 further includes an adjustment mechanism scale 11 and an adjustment screw 23. If these are used, the grinding tool parts 5 and 7 can be relatively moved in the rotation axis direction. Thereby, the width | variety of the rotating shaft direction of a grinding surface can be adjusted according to the shape of a workpiece | work.

Special Table 2007-533469

  The shape required for the R portion of the grinding surface or cutting surface of the tool depends on the shape of the R surface of the final object obtained by processing the workpiece. For example, when the final object has a large-diameter R surface, the tool also requires a large-diameter R portion, and when the final object has a small-diameter R surface, the tool also requires a small-diameter R portion. Is done. When the grinding tool of Patent Document 1 is used, only one pattern of the R surface can be formed. For this reason, when forming a final object having a differently shaped R-surface, another grinding tool suitable for the R-shape must be prepared.

  The present specification provides a grinding apparatus and a cutting apparatus that can form at least two patterns of R surfaces on a workpiece.

  In the present invention, two members having different R shapes are used in combination, and these are moved relative to each other to take various positional relationships, thereby forming at least two patterns of R surfaces on the workpiece.

  The grinding device of the present invention includes a first grinding member and a second grinding member. Each of the 1st grinding member and the 2nd grinding member can rotate, and the axis of rotation of the 1st grinding member and the axis of rotation of the 2nd grinding member exist on the same axis. The first grinding member has at least one first segment. The first segment has a first grinding surface extending in the direction of the rotation axis and a first one-side R surface that is continuous with the first grinding surface on one side in the rotation axis direction. The second grinding member has at least one second segment. The second segment has a second grinding surface extending in the direction of the rotation axis, and a second one side R surface that is continuous with the second grinding surface on one side in the rotation axis direction. In addition, the 1st segment and / or the 2nd segment may have the R surface which continues to the grinding surface in the other side of a rotating shaft direction, and may not be so. Further, in the rotation axis direction, the width of the first grinding surface and the width of the second grinding surface may or may not be equal.

  The distance from the rotation axis to the first grinding surface is equal to the distance from the rotation axis to the second grinding surface. That is, the workpiece is ground by both the first grinding surface and the second grinding surface. Moreover, in the state which grinds a workpiece | work, a clearance gap does not exist between a 1st grinding surface and a 2nd grinding surface in a rotating shaft direction. Thereby, there is no gap between the work part ground by the first grinding surface and the work part ground by the second grinding surface.

  R on the first one-side R surface is different from R on the second one-side R surface. The 1st grinding member and the 2nd grinding member are the 1st grinding to the 2nd grinding member from the 1st positional relationship which can grind a work by the 1st one side R side, and the 1st positional relationship The relative movement is possible between the second positional relationship in which the workpiece is ground relative to the second one-side R surface, which is a positional relationship in which the member has moved relative to the other side in the rotation axis direction. Any of the following (1) to (3) may be adopted as the first and second positional relationships. Note that FIGS. 1 to 3 for explaining the following (1) to (3) are merely examples, and the technical scope of the present application is limitedly interpreted by these drawings and the following description. Absent. The technical scope of the present application is objectively determined according to the description of the scope of claims.

(1) FIGS. 1A and 1B are views for explaining an example of the first and second positional relationships. 1A and 1B simply show how the first segment 10 and the second segment 20 are present at predetermined positions in the rotational direction. When the first segment 10 is present at a predetermined position, the second segment 20 is present at a position different from the predetermined position. However, for ease of understanding, in FIG. The state where the segment 20 exists in the same position is shown. The same applies to FIGS. 2 and 3 described later.

  The left-right direction in FIGS. 1A and 1B is the rotation axis direction. The arrow D1 is one side in the rotation axis direction, and the arrow D2 is the other side in the rotation axis direction. The first segment 10 has a first grinding surface 14 and a first one-side R surface 13 that is continuous with the first grinding surface 14 on the D1 side. The second segment 20 includes a second grinding surface 24 and a second one-side R surface 23 that is continuous with the second grinding surface 24 on the D1 side. R (referred to as R1) of the first one-side R surface 13 is different from R (referred to as R3) of the second one-side R surface 23. Since the distance from the rotation axis to the first grinding surface 14 and the distance from the rotation axis to the second grinding surface 24 are equal, the vertical positions of the first grinding surface 14 and the second grinding surface 24 should match. It is. However, in FIGS. 1A and 1B, the second segment 20 (second grinding surface 24) is replaced with the first segment 10 (first grinding surface 14) to facilitate understanding of the configuration of each segment 10, 20. ) Is slightly above. The same applies to FIGS. 2 and 3 described later.

  A positional relationship as shown in FIG. 1A may be adopted as the first positional relationship. That is, a positional relationship in which the first one-side R surface 13 exists on one side (D1 side) from the second one-side R surface 23 may be adopted as the first positional relationship. In this case, the workpiece is ground by the first one-side R surface 13 located outside. A positional relationship as shown in FIG. 1B may be adopted as the second positional relationship. That is, a positional relationship in which the second one-side R surface 23 is present on one side (D1 side) from the first one-side R surface 13 may be adopted as the second positional relationship. In this case, the workpiece is ground by the second one-side R surface 23 located outside.

(2) FIGS. 2A and 2B are views for explaining another example of the first and second positional relationships. A positional relationship as shown in FIG. 2A may be adopted as the first positional relationship. That is, a positional relationship in which the first one-side R surface 13 exists on one side (D1 side) from the second one-side R surface 23 may be adopted as the first positional relationship. In this case, the workpiece is ground by the first one-side R surface 13 located outside. A positional relationship as shown in FIG. 2B may be adopted as the second positional relationship. That is, a positional relationship in which the one side surface of the first segment 10 and the one side surface of the second segment 20 exist at the same position in the rotation axis direction may be adopted as the second positional relationship. When the two one-side R surfaces are present at the same position in the rotation axis direction, the workpiece is ground by the one-side R surface having the smaller R. In FIG. 2 (B), the second one-side R surface 23 is formed on the condition that R of the second one-side R surface 23 is smaller than that of the first one-side R surface 13 (that is, R3 <R1). The workpiece is ground.

(3) FIGS. 3A and 3B are diagrams for explaining another example of the first and second positional relationships. A positional relationship as shown in FIG. 3A may be adopted as the first positional relationship. 3A is the same as the positional relationship of FIG. 2B described above, but R of the first one-side R surface 13 is smaller than R of the second one-side R surface 23 (FIG. 3). 2 (B) and R are opposite in magnitude). In this case, the work is ground by the first one-side R surface 13 having a small R. A positional relationship as shown in FIG. 3B may be adopted as the second positional relationship. That is, a positional relationship in which the second one-side R surface 23 is present on one side (D1 side) from the first one-side R surface 13 may be adopted as the second positional relationship. In this case, the workpiece is ground by the second one-side R surface 23 located outside.

  According to said grinding apparatus, when a 1st and 2nd segment exists in a 1st positional relationship, a workpiece | work can be ground with the one side R surface of a 1st segment. When the first and second segments are in the second positional relationship, the workpiece can be ground by the one side R surface of the second segment having a different R from the one side R surface of the first segment. When this grinding device is used, two patterns of the R surface can be formed on the workpiece.

  The first segment may have a first other side R surface that is continuous with the first grinding surface on the other side in the direction of the rotation axis. The second segment may have a second other side R surface that is continuous with the second grinding surface on the other side in the direction of the rotation axis. R on the first other-side R surface may be different from R on the second other-side R surface. In this case, the first grinding member and the second grinding member may adopt the positional relationship as shown in FIG. 1A as the first positional relationship. That is, in the rotation axis direction, the first one-side R surface 13 may exist on one side from the second one-side R surface 23. Furthermore, the second other-side R surface 25 may exist on the other side of the first other-side R surface 15 in the rotation axis direction. In this first positional relationship, the workpiece is ground by the first one-side R surface 13 and the second other-side R surface 25 that are on the outside.

  Moreover, you may employ | adopt the positional relationship like FIG. 1 (B) as a 2nd positional relationship. That is, the second one-side R surface 23 may be present on one side of the first one-side R surface 13 in the rotation axis direction. Furthermore, the first other-side R surface 15 may exist on the other side of the second other-side R surface 25 in the rotation axis direction. In this second positional relationship, the workpiece is ground by the second one-side R surface 23 and the first other-side R surface 15 that are outside.

  The first grinding member and the second grinding member have an R surface on the other side in the rotation axis direction, and the R of the R surface may be different between the first grinding member and the second grinding member. Accordingly, the first grinding member and the second grinding member can form two patterns of R surfaces on the workpiece on the other side in the rotation axis direction.

  While the first grinding member and the second grinding member relatively move between the first positional relationship and the second positional relationship, the one side R surface that protrudes to one side and the other side R that protrudes to the other side. The width between the faces changes. That is, the width of the cutting surface changes. The first grinding member and the second grinding member may be capable of grinding the workpiece in a third positional relationship between the first grinding member and the second grinding member. Thereby, the grinding width can be adjusted according to the workpiece.

  Note that R on the first one-side R surface may be equal to R on the second other-side R surface. Further, R of the first other-side R surface may be equal to R of the second one-side R surface. According to such a configuration, in the first positional relationship, the same R surface can be formed on one side and the other side of the workpiece. Even in the second positional relationship, the same R surface can be formed on one side and the other side of the workpiece with the R surface different from the first positional relationship.

  In the first and second grinding surfaces, when each of two sides facing each other in the rotation direction is parallel to the rotation axis, a grinding mark parallel to the rotation axis may be formed on the surface of the workpiece. In order to prevent such grinding marks from being formed, the following configuration may be adopted. That is, each of the two sides facing each other in the rotation direction of the first grinding surface may extend in a direction oblique to the rotation axis direction. Each of the two sides facing each other in the rotation direction of the second grinding surface may extend in an oblique direction with respect to the rotation axis direction. According to this configuration, formation of grinding marks can be reduced.

  The first grinding member may have a plurality of first segments arranged intermittently in the rotation direction. The second grinding member may have a plurality of second segments arranged intermittently in the rotation direction. The first segment and the second segment may be alternately arranged in the rotation direction of the first grinding member and the second grinding member. In the rotational direction of the first grinding member and the second grinding member, the first grinding surfaces of the plurality of first segments and the second grinding surfaces of the plurality of second segments are continuous over one circumference. A surface may be formed. Since the grinding outer peripheral surface is continuous, the area of the grinding surface on which the workpiece is ground becomes larger than that in the case where there is a gap in the rotational direction between the first segment and the second segment. Thereby, the efficiency of grinding the workpiece can be improved.

  The present invention also provides a cutting device for cutting a workpiece. Since the basic structure of this cutting apparatus is the same as that of the above-mentioned grinding apparatus, detailed description is omitted. The first segment and the second segment of the cutting device have a cutting blade instead of the grinding surface in the above grinding device. The first segment has a first one-side R blade that is continuous with the first cutting blade on one side in the rotation axis direction. The second segment has a second one-side R blade that is continuous with the second cutting blade on one side in the rotation axis direction. R of the first one-side R blade is different from R of the second one-side R blade. The first cutting member and the second cutting member can cut the workpiece into at least two patterns of an R shape by relatively moving between the first positional relationship and the second positional relationship.

Here, a part of the techniques described in the following examples will be described.
(Mode 1) The width between the first one-side R surface and the first other-side R surface may be equal to the width between the second one-side R surface and the second other-side R surface. Good.
(Mode 2) The width between the first one-side R surface and the second other-side R surface in the first positional relationship is the second one-side R surface and the first other-side R in the second positional relationship. It may be equal to the width between the surfaces.

(First embodiment)
FIG. 4 shows a perspective view of the two grinding members 102 and 202 constituting the grinding apparatus 2 of the present embodiment. The left-right direction in FIG. 4 is the rotation axis direction. The arrow D1 is one side in the rotation axis direction, and the arrow D2 is the other side in the rotation axis direction. The grinding member 102 has a grinding core 110 and a plurality of segments 120. The grinding core 110 has a substantially ring shape. The plurality of segments 120 are fixed to the grinding core 110 (for example, integrally molded). The plurality of segments 120 are arranged at equal intervals in the circumferential direction of the grinding core 110. In FIG. 4, the interval between two adjacent segments 120 is indicated by reference numeral 160.

  Each segment 120 has the same shape. Each segment 120 has a main body 100 and a grindstone 112. The main body 100 has a substantially rectangular parallelepiped shape. The main body 100 is fixed to the outer peripheral surface of the grinding core 110. The grindstone 112 is fixed to the main body 100. The grindstone 112 has a grinding surface 140, a D1 side R surface 130, and a D2 side R surface 150. The grinding surface 140 is substantially flat. The grinding surface 140 has a spread in the rotation direction and the rotation axis direction. The D1 side R surface 130 is continuous with the grinding surface 140 on the D1 side. The D2 side R surface 150 is continuous with the grinding surface 140 on the D2 side. The width between the D1 side R surface 130 and the D2 side R surface 150 is indicated by reference numeral 180.

  The grinding member 202 has a grinding core 210 and a plurality of segments 220. The grinding core 210 has a substantially disk shape. The grinding core 210 has hydraulic ports 41 a and 41 b and a hole 270. The plurality of segments 220 are fixed to the grinding core 210. The plurality of segments 220 are arranged at equal intervals in the circumferential direction of the grinding core 210. In FIG. 4, an interval between two adjacent segments 220 is indicated by reference numeral 260. The width of the interval 260 in the rotation direction is substantially equal to the width of one segment 120 in the grinding member 102 in the rotation direction. Further, the width in the rotation direction of the interval 160 in the grinding member 102 is substantially equal to the width in the rotation direction of one segment 220 in the grinding member 202.

  Each segment 220 has the same shape. Each segment 220 has a main body 200 and a grindstone 212. The main body 200 has a substantially rectangular parallelepiped shape. The main body 200 is fixed to the outer peripheral surface of the grinding core 210. The grindstone 212 is fixed to the main body 200. The grindstone 212 has a grinding surface 240, a D1 side R surface 230, and a D2 side R surface 250. The grinding surface 240 is substantially flat. The grinding surface 240 has a spread in the rotation direction and the rotation axis direction. The D1 side R surface 230 is continuous with the grinding surface 240 on the D1 side. The D2 side R surface 250 is continuous with the grinding surface 240 on the D2 side. A width between the D1 side R surface 230 and the D2 side R surface 250 is indicated by reference numeral 280. This width 280 is equal to the width 180 of the grinding member 102.

  R of the D1 side R surface 130 in the grinding member 102 is equal to R of the D2 side R surface 250 in the grinding member 202 (hereinafter referred to as R1). R of the D2 side R surface 150 of the grinding member 102 is equal to R of the D1 side R surface 230 of the grinding member 202 (hereinafter referred to as R2). In the first embodiment, R1 is smaller than R2.

  One segment 220 can be inserted in the interval 160 between two adjacent segments 120. Further, one segment 120 can be inserted in the interval 260 between two adjacent segments 220. That is, the plurality of segments 120 and the plurality of 220 can have a structure in which they are meshed with each other. As a result, a grinding surface in which the plurality of grinding surfaces 140 and the plurality of grinding surfaces 240 are continuous in the rotation direction is formed.

  FIG. 5 shows a front view of the grinding apparatus 2. The ground surface 240 of the segment 220 is in contact with the surface of the workpiece 1000. The width of the grinding surface of the grinding device 2 (that is, the combined width of the grinding surface 140 and the grinding surface 240) is indicated by reference numeral 300. In many cases, the width of the workpiece 1000 is actually about the same as the width 300, but in FIG. 5, the width of the workpiece is enlarged for the sake of explanation.

  FIG. 6 shows a longitudinal sectional view of FIG. The grinding device 2 has a rotating shaft 30. The rotary shaft 30 has a small diameter on the D1 side and a large diameter on the D2 side. A small diameter portion of the rotating shaft 30 is inserted into the hole 270 of the grinding core 210. Thereby, the grinding core 210 is fixed to the rotating shaft 30. The grinding device 2 has a cap 60. The cap 60 has a substantially ring shape. In a state where the grinding member 102 and the grinding member 202 are engaged with each other, the cap 60 is fixed to the grinding member 202 from the D1 side. The cap 60 prohibits the grinding member 102 from moving to the D1 side and coming off.

  The rotating shaft 30 has hydraulic ports 40a and 40b. The hydraulic port 40 a communicates with the hydraulic port 41 a of the grinding core 210. 5 and 6, a space 42 a is formed between the grinding member 102 and the grinding member 202. The space 42a is formed in a ring shape. The hydraulic port 41a communicates with the space 42a. The hydraulic port 40 b communicates with the hydraulic port 41 b of the grinding core 210. 5 and 6, the hydraulic port 41b is not in communication with the space 42a. The grinding member 102 can be moved relative to the grinding member 202 by applying hydraulic pressure through these hydraulic ports.

  The state when the grinding member 102 is relatively moved to the D2 side from the state of FIGS. 5 and 6 is shown in FIGS. FIG. 7 shows a front view of the grinding apparatus 2. FIG. 8 shows a longitudinal sectional view of FIG. When the grinding members 102 and 202 are in the positional relationship as shown in FIG. 6, if the oil is discharged from the hydraulic port 40a in the direction 44a and filled from the hydraulic port 40b in the direction 44b, the volume of the space 42a is reduced. Then, the grinding member 102 moves to the D2 side. As a result, as shown in FIG. 8, a space 42b is formed between the cap 60 and the grinding core 110, and the hydraulic port 41b communicates with the space 42b. The space 42b is formed in a ring shape. In a state where the grinding member 102 is in contact with the grinding member 202, the space 42a shown in FIG. Conversely, in the positional relationship of FIG. 8, when the oil is filled in the direction 46a from the hydraulic port 40a and discharged in the direction 46b from the hydraulic port 40b, the positional relationship of FIG. 6 is restored.

  Hereinafter, the positional relationship shown in FIGS. 5 and 6 is referred to as a first positional relationship. Further, the positional relationship shown in FIGS. 7 and 8 is referred to as a second positional relationship. In the first positional relationship, the R surface can be formed on the workpiece 1000 by the D1 side R surface 130 located outside. Further, the R surface can be formed on the workpiece 1000 by the D2 side R surface 250 positioned on the outer side. That is, in the first positional relationship, the R surface having the diameter R1 can be formed on the workpiece 1000 on both the D1 side and the D2 side. Further, the grinding width in the first positional relationship is 300.

  On the other hand, in the second positional relationship, the R surface can be formed on the workpiece 1000 by the D1 side R surface 230 located outside. Further, the R surface can be formed on the workpiece 1000 by the D2 side R surface 150 located on the outer side. That is, in the second positional relationship, the R surface having the diameter R2 can be formed on the workpiece 1000 on both the D1 side and the D2 side. The grinding width in the second positional relationship is the width 320, and in this embodiment, the width 300 and the width 320 are the same.

  In the grinding device 2, the grinding members 102 and 202 can be relatively moved between the first positional relationship and the second positional relationship. When the R surface having the diameter R1 is formed on the workpiece 1000 on both the D1 side and the D2 side, the first positional relationship may be employed. When the R surface having the diameter R2 is formed on the workpiece 1000 on both the D1 side and the D2 side, the second positional relationship may be employed. Using the same grinding device 2, two patterns of R-surface can be formed on the workpiece 1000.

  By adjusting the amount of oil filled in the spaces 42a and 42b, the grinding device 2 can grind the workpiece 1000 even in a positional relationship between the first positional relationship and the second positional relationship. FIG. 9 shows a state in which the grinding members 102 and 202 exist in the positional relationship between the first positional relationship and the second positional relationship. In this state, the D1 side R surface 130 and the D1 side R surface 230 exist at the same position in the rotation axis direction. Further, the D2 side R surface 150 and the D2 side R surface 250 exist at the same position in the rotation axis direction. When R surfaces having different R shapes overlap, the workpiece 1000 is ground on the R surface having the smaller R shape. In the present embodiment, since R1 is smaller than R2, the R surface can be formed on the workpiece 1000 by the D1 side R surface 130 and the D2 side R surface 250 having R1 having a small R.

  In the positional relationship of FIG. 9, the width of the grinding surface is the width 330. The width 330 is smaller than the widths 300 and 320 of the cutting surfaces in the first and second positional relationships. Even when the same R surface (R1) is formed, the grinding width can be adjusted to two patterns of the width 300 and the width 330. Note that the grinding members 102 and 202 can also exist in a positional relationship other than the positional relationship in FIG. The workpiece 1000 can be ground using various grinding widths.

  In the grinding apparatus 2 according to the present embodiment, by moving the grinding member 102 and the grinding member 202 relative to each other in the rotation axis direction, different R surfaces can be formed on the workpiece 1000 and the workpiece 1000 is ground with different grinding widths. be able to. When the final target shape obtained by processing the workpiece 1000 is different, it is not necessary to prepare a grinding member suitable for it, and it can be handled by one grinding apparatus.

(Second embodiment)
In the grinding device 2 of the first embodiment, the boundary between the grinding surface 140 and the grinding surface 240 is parallel to the rotation axis direction. In this case, a grinding mark parallel to the rotation axis direction may be formed on the workpiece 1000. FIG. 10 shows a perspective view of the grinding apparatus of the second embodiment. In the second embodiment, the boundary between the grinding surface 340 and the grinding surface 440 of the two grinding members extends in an oblique direction with respect to the rotation axis direction. This can reduce the formation of grinding marks balanced in the direction of the rotation axis.

(Third embodiment)
In the present embodiment, not a grinding device but a cutting device having a cutting blade will be described. FIG. 11 is a perspective view of the cutting members 502 and 602 of the cutting apparatus 700. Each segment 520 of the cutting member 502 includes a main body 500, a cutting part 590, and a screw 591. A V-shaped trench is formed in the main body 500. The cutting part 590 is inserted into the V-shaped trench of the main body 500. The cutting part 590 has a substantially rectangular parallelepiped shape. The cutting unit 590 is fixed to the main body 500 with a screw 591. The cutting part 590 extends in the rotation axis direction. The cutting unit 590 includes a straight blade 594, an R blade 592 that is continuous with the straight blade 594 on the D1 side, and an R blade 596 that is continuous with the straight blade 594 on the D2 side. The straight blade 594 and the R blade 592,596 come into contact with the workpiece, and the workpiece can be cut by the straight blade 594 and the R blade 592,596. Each segment 620 of the cutting member 602 includes a main body 600, a cutting portion 690, and a screw 691. The main body 600 is formed with a V-shaped trench. The cutting part 690 is inserted into the V-shaped trench of the main body 600. The cutting part 690 has a substantially rectangular parallelepiped shape. The cutting part 690 is fixed to the main body 600 with a screw 691. The cutting part 690 extends in the rotation axis direction. The cutting unit 690 includes a straight blade 694, an R blade 692 that is continuous with the straight blade 694 on the D1 side, and an R blade 696 that is continuous with the straight blade 694 on the D2 side. Since the method of cutting the workpiece by the cutting unit 690 is the same as that of the cutting unit 590, detailed description is omitted.

  R of the R blade 592 is different from R of the R blade 692. R of the R blade 596 is different from R of the R blade 696. The cutting members 502 and 602 can move relatively in the direction of the rotation axis in the same manner as the grinding members 102 and 202 of the first embodiment. The present embodiment is the same as the first embodiment except that the grindstone is changed to a blade. Even if the cutting device 700 of this embodiment is used, two patterns of R-surface can be formed on the workpiece.

(Fourth embodiment)
In each of the above embodiments, hydraulic pressure is used to move the two grinding members (or cutting members) relative to each other. However, methods other than hydraulic pressure may be used. FIG. 12 shows a longitudinal sectional view of the grinding apparatus 800 of the present embodiment. The grinding apparatus 800 includes two grinding members 802, 902, a rotating shaft 32, a rod 34, a cap 62, and the like. The grinding core 810 of the grinding member 802 is fixed to the rotating shaft 32. A rod 34 is inserted into the rotating shaft 32. The rod 34 is movable in the rotation axis direction. A cap 62 is fixed to the rod 34. The grinding core 910 of the grinding member 902 is fixed to the cap 62. From the positional relationship shown in FIG. 12, the grinding member 902 can be moved to the D1 side by moving the rod 34 to the D1 side. Even if such a configuration is adopted, the grinding members 802 and 902 can be relatively moved in the direction of the rotation axis.

Specific examples of the present invention have been described in detail above, but these are merely examples and do not limit the scope of the claims. The technology described in the claims includes various modifications and changes of the specific examples illustrated above.
In addition, the technical elements described in the present specification or the drawings exhibit technical usefulness alone or in various combinations, and are not limited to the combinations described in the claims at the time of filing. In addition, the technology illustrated in the present specification or the drawings achieves a plurality of objects at the same time, and has technical utility by achieving one of the objects.

The figure for demonstrating an example of 1st positional relationship and 2nd positional relationship is shown. The figure for demonstrating another example of 1st positional relationship and 2nd positional relationship is shown. The figure for demonstrating another example of 1st positional relationship and 2nd positional relationship is shown. The perspective view of two grinding members which constitute the grinding device of the 1st example is shown. The front view of the grinding apparatus of 1st Example is shown (1st positional relationship). The longitudinal cross-sectional view of the grinding apparatus of 1st Example is shown (1st positional relationship). The front view of the grinding apparatus of 1st Example is shown (2nd positional relationship). The longitudinal cross-sectional view of the grinding apparatus of 1st Example is shown (2nd positional relationship). The front view of the grinding device of the 1st example is shown (positional relation between the first positional relation and the second positional relation). The perspective view of the grinding device of the 2nd example is shown. The perspective view of the two cutting members which comprise the cutting device of 3rd Example is shown. The longitudinal cross-sectional view of the grinding apparatus of 4th Example is shown.

Explanation of symbols

2: Grinding device 30: Rotating shaft 40a, 40b: Hydraulic port 41a, 41b: Hydraulic port 60: Cap 100, 200: Main body 102, 202: Grinding member 110, 210: Grinding core 120, 220: Segment 130, 230: D1 Side R surface 150, 250: D2 side R surface 140, 240: Grinding surface D1: One side in rotation axis direction D2: The other side in rotation axis direction

Claims (7)

A grinding device for grinding workpieces,
A first grinding member and a second grinding member;
Each of the first grinding member and the second grinding member is rotatable,
The rotation axis of the first grinding member and the rotation axis of the second grinding member are coaxial.
The first grinding member has at least one first segment;
The first segment has a first grinding surface extending in the direction of the rotation axis, and a first one side R surface that is continuous with the first grinding surface on one side in the rotation axis direction,
The second grinding member has at least one second segment;
The second segment has a second grinding surface extending in the rotation axis direction, and a second one side R surface that is continuous with the second grinding surface on the one side in the rotation axis direction,
The distance from the rotation axis to the first grinding surface is equal to the distance from the rotation axis to the second grinding surface,
In the state of grinding the workpiece, there is no gap between the first grinding surface and the second grinding surface in the rotational axis direction,
R of the first one-side R surface is different from R of the second one-side R surface,
The 1st grinding member and the 2nd grinding member are the 1st grinding to the 2nd grinding member from the 1st positional relationship which can grind a work by the 1st one side R side, and the 1st positional relationship The relative positional movement of the member relative to the other side in the rotation axis direction and the second positional relation in which the workpiece can be ground by the second one-side R surface is possible. A characteristic grinding device. The first segment further has a first other side R surface that is continuous with the first grinding surface on the other side in the rotation axis direction,
The second segment further has a second other side R surface that is continuous with the second grinding surface on the other side in the rotation axis direction,
R of the first other side R surface is different from R of the second other side R surface,
In the first positional relationship, in the rotation axis direction, the first one-side R surface is present on the one side from the second one-side R surface,
In the first positional relationship, in the rotation axis direction, the second other side R surface is present on the other side from the first other side R surface,
In the second positional relationship, in the rotation axis direction, the second one-side R surface is present on the one side from the first one-side R surface,
2. The grinding apparatus according to claim 1, wherein, in the second positional relationship, the first other-side R surface is present on the other side than the second other-side R surface in the rotation axis direction. . The first grinding member and the second grinding member are capable of grinding a workpiece in a third positional relationship between the first positional relationship and the second positional relationship. Grinding equipment. R of the first one-side R surface is equal to R of the second other-side R surface,
The grinding device according to claim 2 or 3, wherein R of the first other-side R surface is equal to R of the second one-side R surface. Each of the two sides facing each other in the rotation direction of the first grinding surface extends in an oblique direction with respect to the rotation axis direction,
The grinding apparatus according to any one of claims 1 to 4, wherein each of the two sides facing each other in the rotation direction of the second grinding surface extends in a direction oblique to the rotation axis direction. The first grinding member has a plurality of first segments arranged intermittently in the rotation direction,
The second grinding member has a plurality of second segments arranged intermittently in the rotation direction,
In the rotation direction of the first grinding member and the second grinding member, the first segment and the second segment are alternately arranged,
In the rotational direction of the first grinding member and the second grinding member, the first grinding surfaces of the plurality of first segments and the second grinding surfaces of the plurality of second segments are continuous over one circumference. The grinding device according to any one of claims 1 to 5, wherein a surface is formed. A cutting device that cuts workpieces,
A first cutting member and a second cutting member;
Each of the first cutting member and the second cutting member is rotatable,
The rotation axis of the first cutting member and the rotation axis of the second cutting member exist on the same axis,
The first cutting member has at least one first segment;
The first segment has a first cutting blade extending in the rotation axis direction, and a first one-side R blade continuous with the first cutting blade on one side in the rotation axis direction,
The second cutting member has at least one second segment,
The second segment has a second cutting blade extending in the direction of the rotation axis, and a second one-side R blade continuous with the second cutting blade on the one side in the rotation axis direction,
The distance from the rotating shaft to the first cutting blade is equal to the distance from the rotating shaft to the second cutting blade,
In the state of cutting the workpiece, there is no gap between the first cutting blade and the second cutting blade in the rotational axis direction,
R of the first one-side R blade is different from R of the second one-side R blade,
The 1st cutting member and the 2nd cutting member are 1st cutting with respect to the 2nd cutting member from the 1st position relation which can cut a work with the 1st one side R blade, and the 1st position relation The relative positional movement of the member relative to the other side in the rotation axis direction and the second positional relationship in which the workpiece can be cut by the second one-side R blade is possible. A cutting device characterized.

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