JP7083547B1 - Manufacturing method of chamfered wheel, chamfered wheel, and pre-use adjustment method of chamfered wheel - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a method for manufacturing a chamfered wheel which is formed more accurately. A method for manufacturing a chamfered wheel includes a reference surface on one of a pair of side surfaces of a disk, a fitting hole in which a rotary shaft component is fitted to the disk, and a runout of an outer peripheral surface of the disk when the disk rotates. A first surface of the annular centering groove for adjustment, and a second surface of the centering groove adjacent to the first surface and for adjusting the runout of the reference surface when the disk rotates. It includes forming the surfaces concentrically by coaxial processing and forming a grindstone portion on the outer peripheral surface of the disk. [Selection diagram] Fig. 7

Description

The present invention relates to a method for manufacturing a chamfered wheel, a chamfered wheel, and a method for adjusting the chamfered wheel before use.

The chamfering wheel is attached to a rotating shaft component such as a spindle, and is rotated together with the rotating shaft component to chamfer an object to be inspected such as glass or a silicon wafer at a grindstone portion on an outer peripheral surface. For example, when the object to be inspected is inserted into the groove of the grindstone portion formed in an annular shape on the outer peripheral surface of the chamfered wheel, the edge of the object to be inspected is chamfered in the shape of the groove.

Japanese Unexamined Patent Publication No. 2006-116686

It has been found that the grindstone life of a chamfered wheel is due to the geometric accuracy of the chamfered wheel. Therefore, it is required that the disk that is the base body of the chamfer wheel is formed more accurately.

An object of the present invention is to provide a method for manufacturing a chamfered wheel, a chamfered wheel, and a method for adjusting the chamfered wheel before use, which are formed more accurately.

The method for manufacturing a chamfered wheel according to one aspect of the present invention is provided on a reference surface which is one of a pair of side surfaces of a disk, a fitting hole where a rotating shaft component is fitted to the disk, and the reference surface. The first surface of the annular centering groove and the reference used when detecting the runout corresponding to the runout of the outer peripheral surface of the chamfer wheel when the chamfer wheel rotates and adjusting the position of the disk. A second of the centering grooves provided on the surface, adjacent to the first surface, detecting runout of the reference surface when the chamfer wheel rotates , and adjusting the position of the disk . The surface is maintained in a state where the disk is held by a machine tool, coaxial processing is performed, the centering groove is formed concentrically with respect to the central axis of the fitting hole portion, and the first surface and the said It includes ensuring the accuracy of the second surface and forming an annular grindstone portion on the outer peripheral surface of the disk.

INDUSTRIAL APPLICABILITY According to the present invention, it is possible to provide a method for manufacturing a chamfered wheel, a chamfered wheel, and a method for adjusting the chamfered wheel before use, which are formed more accurately.

FIG. 2 is a schematic view of the chamfered wheel according to the embodiment as viewed from the direction indicated by reference numeral I in FIG. FIG. 2 is a cross-sectional view taken along the line II-II in FIG. Enlarged view of the position indicated by reference numeral III in FIG. Schematic perspective of the base metal for the disc of the chamfered wheel according to the embodiment. FIG. 6 is a schematic perspective view showing a manufacturing process following FIG. 4 of the chamfered wheel. FIG. 6 is a schematic perspective view showing a manufacturing process following FIG. 5 of the chamfered wheel. FIG. 6 is a schematic perspective view showing a manufacturing process following FIG. 6 of the chamfered wheel. The schematic perspective view which shows the manufacturing process which follows FIG. 7 of a chamfer wheel. The schematic perspective view which shows the manufacturing process which follows FIG. 8 of a chamfer wheel. The schematic perspective view which shows the manufacturing process which follows FIG. 9 of a chamfer wheel. The schematic perspective view which shows the manufacturing process which follows FIG. 10 of a chamfer wheel. FIG. 6 is a schematic perspective view showing a manufacturing process following FIG. 11 of the chamfered wheel. FIG. 2 is a schematic perspective view showing a manufacturing process following FIG. 12 of the chamfered wheel. FIG. 6 is a schematic perspective view showing a manufacturing process following FIG. 13 of the chamfered wheel. FIG. 6 is a schematic perspective view showing a manufacturing process following FIG. 14 of the chamfered wheel. FIG. 6 is a schematic perspective view showing a manufacturing process following FIG. 15 of the chamfered wheel. FIG. 6 is a schematic perspective view showing a manufacturing process following FIG. 16 of the chamfered wheel. Schematic perspective showing how to adjust the chamfer wheel before use.

The chamfer wheel 10 according to the embodiment will be described with reference to FIGS. 1 to 18.

As shown in FIGS. 1 to 3, the chamfer wheel 10 has a disk 12 in which the central axis C is defined, and a grindstone portion 14 formed on the outer peripheral surface of the disk 12.

The disk 12 serves as a base body for fixing the grindstone portion 14. For the disk 12, for example, it is preferable to use an aluminum alloy. For the disk 12, it is preferable to use extra super duralumin (A7075 material), which has good workability and wear resistance, among aluminum alloys. The disk 12 has the rigidity of the chamfered wheel 10 as the disk 12, can be processed into a desired state, and can use various materials, not limited to aluminum alloys, as long as it has the desired dimensional stability.
The disk 12 includes a disk body 22 in which a central axis C is defined, a fitting hole portion 24 penetrating the central axis C of the disk body 22, and a concave centering groove 26 formed around the axis of the central axis C. Have.

The disk body 22 includes a boss 32 having a pair of planes 32a and 32b, an annular portion 34 having a pair of annular surfaces (concave surfaces) 34a and 34b formed on the outside of the boss 32, and an outer peripheral surface 36. Has. The boss 32 forms the fitting hole portion 24. The planes 32a and 32b of the boss 32 project, for example, with respect to the pair of annular surfaces 34a and 34b, respectively. The planes 32a and 32b are formed as annular planes parallel to each other, and the normals of the pair of planes 32a and 32b face opposite to each other. One of the planes 32a is used as a reference plane as a reference for outer peripheral runout and side runout, which will be described later. One annular surface 34a may be formed flush with the reference surface which is the plane 32a of the boss 32. Hereinafter, for the sake of simplification of the description, it is assumed that one plane 32a of the boss 32 and the annular surface 34a are flush with each other, and this is referred to as the one (first) side surface 38a. When the plane 32a and the annular surface 34a are flush with each other, this side surface 38a serves as a reference surface. That is, the reference plane may be the plane 32a of the boss 32 in the side surface 38a, or may be a region where the plane 32a and the annular surface 34a are combined. The other annular surface 34b is used, for example, as an engraved surface (hereinafter, appropriately designated with reference numeral 34b) on which an indication (not shown) such as a serial number or a manufacturer is engraved. The other annular surface 34b may be formed flush with the plane 32b of the boss 32. Hereinafter, it is assumed that the other plane 32b of the boss 32 and the annular surface 34b are flush with each other, and this is referred to as the other (second) side surface 38b and this is referred to as the engraved surface. In this case, the fitting hole portion 24 appears to penetrate the pair of side surfaces 38a, 38b. 4 to 18 show a pair of annular planes 38a and 38b, respectively, by appropriately omitting a step between the pair of planes 32a and 32b of the boss 32 and the pair of annular surfaces 34a and 34b. Illustrated. The outer peripheral surface 36 has a flange portion 42 having an outer outer peripheral surface 42a and an inner outer peripheral surface 44. An annular grindstone portion 14 is arranged on the inner outer peripheral surface 44 of the disk body 22. The grindstone portion 14 is positioned with respect to the disk body 22 by the flange portion 42.

The fitting hole portion 24 is formed as an annular surface (inner peripheral surface) perpendicular to the reference surface 38a (plane surface 32a) and having normals at each position facing the central axis C. Rotating shaft components 80 and 90 such as a spindle or an arbor are fitted into the fitting hole portion 24.

The centering groove 26 is formed on the inner side surface 38a (annular annular surface 34a) of the outer peripheral surface 36 of the disk body 22. The centering groove 26 has an annular first surface 52, a second surface 54, and a third surface 56, which are concentric with the central axis C, respectively. The first surface 52 and the second surface 54 are continuous (adjacent). The second surface 54 and the third surface 56 are continuous (adjacent).
The first surface 52 is formed in an annular shape so as to be orthogonal to the reference surface 38a (plane surface 32a) and parallel to the fitting hole portion 24. The normal of the first surface 52 faces the central axis C of the disk 12. The second surface 54 is parallel to the reference surface 38a (plane surface 32a), orthogonal to the fitting hole portion 24, and formed in an annular shape. The third surface 56 is formed in an annular shape, but in the present embodiment, it is neither parallel to nor perpendicular to the reference surface 38a (plane 32a). In the present embodiment, the third surface 56 shows an example in which the cross section is linear, but the cross section may be curved.

The grindstone portion 14 is formed as an annular fired body containing, for example, diamond powder. The grindstone portion 14 has a pair of end faces 62a and 62b, an inner peripheral surface 64, and an outer peripheral surface 66. One end surface 62a abuts on the flange portion 42. The normal of the other end surface 62b faces, for example, the same normal direction as the engraved surface 34b. A plurality of annular chamfer grooves 68 are formed on the outer peripheral surface 66 of the grindstone portion 14, respectively. In the present embodiment, nine chamfer grooves 68 are formed at a predetermined pitch in the thickness direction of the chamfer wheel 10 along the axial direction of the central axis C. Each chamfered groove 68 does not have to have the same shape and grain size by appropriately providing a finishing step depending on the shape and roughness of the chamfered surface of the object to be studied.

Next, a method of manufacturing the chamfer wheel 10 will be described with reference to FIGS. 4 to 17. In the examples shown in FIGS. 4 to 17, an example using tools T1-T8 to be attached to an appropriate machine tool will be described. The tools T1-T8 do not necessarily use eight tools, but the same tool may be used as appropriate.

As shown in FIG. 4, for example, a base material 100 having a columnar shape and made of the same material as the disk 12 of the chamfer wheel 10 is prepared. The outer diameter of the base metal 100 is formed to be the same as or larger than the outer diameter of the outer outer peripheral surface 42a of the disk 12 of the chamfer wheel 10. For example, a disk 12 of a plurality of chamfered wheels 10 is cut out from the base material 100 so as to have a predetermined thickness (step 1). From the base material 100 shown in FIG. 4, a disk 12 of a plurality of chamfered wheels 10 can be formed.

As shown in FIG. 5, the fitting hole portion 24 for passing the rotary shaft parts 80 and 90 is roughly machined on the disk 12 by the tool T1 attached to a certain machine tool, and the outer circumference is formed by the tool T2 attached to a certain machine tool. Roughing the surface 36 (step 2).

As shown in FIG. 6, the other side surface 38b of the pair of side surfaces 38a and 38b of the disk 12 is used as a temporary reference surface by a tool T3 attached to a machine tool, and the other side surface 38b is used as a serial number or a manufacturer. It is processed as an engraved surface such as. Further, the inner diameter of the fitting hole portion 24 through which the rotary shaft parts 80 and 90 are passed is increased by the tool T4 attached to a certain machine tool (process 3). The inner diameter of the fitting hole portion 24 at this time is smaller than the predetermined inner diameters of the rotary shaft components 80 and 90. The processing step of the temporary reference surface (engraved surface) 38b and the fitting hole portion 24 can be performed when rough processing is performed. Therefore, the processing step of the temporary reference surface (engraved surface) 38b and the fitting hole portion 24 may be unnecessary.

As shown in FIG. 7, for example, of the outer peripheral surface 36 of the disk 12, the outside of the position formed as the inner outer peripheral surface 44 is held by a machine tool from the temporary reference surface 38b side. That is, the disk 12 is inverted. Then, the side surface 38a is formed by the tool T5 attached to the machine tool so that the surface of the disk 12 opposite to the temporary reference surface 38b is used as the reference surface. As an example, by performing coaxial processing on the disk 12 while maintaining the state in which the disk 12 is held by the same machine tool, the side surface 38a in which the flat surface 32a and the annular surface 34a are combined is formed as a flush reference surface. Will be done.
Further, while maintaining the state in which the outer peripheral surface 36 of the disk 12 is held from the engraved surface 38b side, the fitting hole portion 24 through which the rotating shaft parts 80 and 90 are passed is attached to the machine tool by coaxial processing with the reference surface 38a. It is formed by the tool T6. Further, while maintaining the state in which the outer peripheral surface 36 of the disk 12 is held from the engraved surface 38b side, an annular centering groove 26 is attached to the reference surface 38a by coaxial processing with the reference surface 38a. It is formed by the tool T7.
That is, here, the outer peripheral surface 36 of the disk 12 is held from the engraved surface 38b side, which is the other side of the pair of side surfaces 38a and 38b, and the central axis C of the disk 12 is secured in a common state. The reference surface 38a, the fitting hole portion 24, and the centering groove 26 are formed by coaxial processing with tools T5, T6, and T7 attached to a certain machine tool (step 4). By performing coaxial processing on the disk 12 while maintaining the state in which the disk 12 is held by the same machine tool, the inner peripheral surface of the fitting hole portion 24 is formed so as to be orthogonal to the reference surface 38a. Orthogonal. Further, by this processing, the central axis C of the disk 12 is defined.
It is preferable that the fitting hole portion 24 and the centering groove 26 are formed by simultaneous machining with a plurality of tools T6 and T7 at the same time. The fitting hole portion 24 and the centering groove 26 may not be machined at the same time and may be machined in any order.

The first surface 52, the second surface 54, and the third surface 56 of the centering groove 26 shown in FIG. 3 are formed by coaxial processing with the reference surface 38a and the fitting hole portion 24. Therefore, the first surface 52 is formed so as to be perpendicular to the reference surface 38a and parallel to the inner peripheral surface of the fitting hole portion 24, and the second surface 54 is parallel to the reference surface 38a and is fitted. It is formed in a state perpendicular to the inner peripheral surface of the hole portion 24.

For example, from step 2 shown in FIG. 5 to step 4 shown in FIG. 7, it is preferable to machine the disk 12 using the same machine tool.

The holding state of a machine tool is changed from the state where the outer peripheral surface 36 of the disk 12 is held from the engraved surface 38b side to the state where the disk 12 is held from the reference surface 38a side. That is, of the outer peripheral surface 36 of the disk 12, the outside of the position to be the outer outer peripheral surface 42a is held by the machine tool from the reference surface 38a side. Then, as shown in FIG. 8, the outer peripheral surface 36 of the disk 12 is cut from the engraved surface 38b side using the tool T8 attached to the machine tool (step 5). Then, a flange portion 42 on the reference surface 38a side and an inner outer peripheral surface 44 on the engraved surface 38b side are formed on the outer peripheral surface 36 of the disk 12.

As shown in FIG. 9, for example, an annular grindstone portion 14 obtained by sintering diamond powder is fitted from the engraved surface 38b side toward the flange portion 42. For example, the inner peripheral surface of the grindstone portion 14 is adhered and fixed to the inner outer peripheral surface 44 (step 6). At this time, the end surface 62a on the reference surface 38a side of the grindstone portion 14 is brought into contact with the flange portion 42. Therefore, the grindstone portion 14 is positioned by the flange portion 42. The end surface 62b on the engraved surface 38b side of the grindstone portion 14 may protrude from the engraved surface 38b. Further, the outer peripheral surface 66 of the grindstone portion 14 is located on the outer side in the radial direction with respect to the outer outer peripheral surface 42a of the disk 12, for example.

After the grindstone portion 14 is fixed to the inner outer peripheral surface 44 of the disk 12, for example, the chamfer wheel 10 is rotated in a predetermined direction R1 and another grindstone 72 is rotated in a predetermined direction R2 as shown in FIG. The end surface 62b on the engraved surface 38b side of the grindstone portion 14 is ground, and the end surface 62b on the engraved surface 38b side of the grindstone portion 14 is made flat (step 7). The direction R1 is an axial direction of the central axis C. The direction R2 is the axial direction of the central axis (orthogonal to the central axis C of the disk 12) C1 of the grindstone 72. At this time, if necessary, the grindstone 72 is moved in the direction D1 and the direction D2 opposite to the direction D1. The directions D1 and D2 are orthogonal to the central axis C and parallel to the central axis of the grindstone 72.

As shown in FIG. 11, a rotary shaft component (coaxial arbor) 80 is incorporated as a machining shaft into the chamfer wheel 10 in this state. Then, the centering work of the rotary shaft component 80 and the disk 12 is performed (step 8). The centering work is performed using the distance detection sensors S1 and S2. Here, an example using two distance detection sensors S1 and S2 will be described, but one sensor may detect both the outer peripheral runout and the side runout.

In the centering operation, for example, as shown in FIG. 12, first, as the first distance detection sensor S1, for example, the rotary shaft component in a state where the dial gauge is in contact with the first surface 52 of the centering groove 26. The 80 is rotated to detect the runout of the first surface 52 of the centering groove 26. Since the first surface 52 is formed more accurately than the outer peripheral surface 36 of the disk 12 and the outer peripheral surface 66 of the grindstone portion 14, the runout of the first surface 52 is caused by the outer peripheral surface 36 of the disk 12 and the grindstone portion 14. It can be equated with the runout of the outer peripheral surface 66 (outer peripheral runout). In the centering operation, for example, as shown in FIG. 13, secondly, as the second distance detection sensor S2, for example, the rotary shaft component 80 is in contact with the second surface 54 of the centering groove 26. Is rotated to detect the runout of the second surface 54 of the centering groove 26. Since the second surface 54 is formed by coaxial processing with the reference surface 38a, the runout of the second surface 54 can be equated with the runout (side runout) of the reference surface 38a which is the side surface of the disk 12. After detecting the outer peripheral runout and the side runout of the disk 12, the mounting state of the disk 12 with respect to the rotating shaft component 80 is adjusted as necessary. That is, the mounting state of the disk 12 with respect to the rotating shaft component 80 is adjusted based on the deflection of the first surface 52 with respect to the rotating shaft component 80 detected by the dial gauge (distance detection sensor) S1. Further, based on the deflection of the second surface 54 with respect to the rotary shaft component 80 detected by the dial gauge (distance detection sensor) S2, the mounting state of the disk 12 with respect to the rotary shaft component 80 is adjusted. In this way, by the centering work for adjusting the mounting state of the rotary shaft component 80 and the disk 12, the coaxiality of the central shaft C of the rotary shaft component 80 and the chamfer wheel 10 and the rotary shaft with respect to the reference surface 38a of the chamfer wheel 10 The squareness of the central axis of the component 80 and the squareness of the surface of the fitting hole 24 with respect to the reference surface 38a of the chamfered wheel are secured.
When detecting the outer peripheral runout and the side runout of the disk 12, the disk 12 may be fixed and the distance detection sensors S1 and S2 may be moved in an annular shape. Therefore, when detecting the outer peripheral runout and the side runout of the disk 12, the distance detection sensor S1 is moved relative to the first surface 52 of the centering groove 26 in the circumferential direction, and the disk 12 with respect to the rotary shaft component 80. The position of the disk 12 is adjusted based on the runout (outer runout), and the distance detection sensor S1 or another distance detection sensor S2 is moved relative to the second surface 54 of the centering groove 26 in the circumferential direction. It is preferable to adjust the position of the disk 12 based on the runout (side runout) of the reference surface 38a of the disk 12 with respect to the rotating shaft component 80.

As shown in FIG. 14, the rotary shaft component 80 is incorporated, and the outer diameter of the outer peripheral surface 66 of the grindstone portion 14 of the chamfered wheel 10 that has been centered is made constant by using another grindstone 74 (. Step 9). For example, the chamfering wheel 10 is rotated around the axis of the predetermined direction R3, and the grindstone 74 is reciprocated in the direction D3 and the direction D4 opposite to the direction D3 while rotating the grindstone 74 around the axis of the predetermined direction R4. .. At this time, the central axis C of the chamfer wheel 10 and the central axis C2 of the grindstone 74 are parallel, and the directions D3 and D4 are parallel to the central axis C.

As shown in FIG. 15, after that, the outer peripheral runout of the disk 12 shown in FIG. 12 and the side runout of the disk 12 shown in FIG. 13 are confirmed, and the coaxiality and the squareness of the rotary shaft component 80 and the chamfer wheel 10 are determined. Perform the securing centering work again (step 10).

As shown in FIG. 16, a chamfering groove (product groove) 68 for chamfering the edges of various plate-shaped members (not shown) is machined on the outer peripheral surface 66 of the grindstone portion 14 by using the electric discharge machining electrode 76. (Step 11). At this time, the central axis C of the chamfer wheel 10 and the central axis C3 of the electric discharge machining electrode 76 are parallel to each other.

As shown in FIG. 17, a dressing operation is performed on the chamfered groove (product groove) 68 of the chamfered wheel 10 (step 12). Therefore, the chamfered groove (product groove) 68 of the chamfered wheel 10 exhibits desired performance when chamfering the edges of various plate-shaped members (not shown).

Finally, the chamfer wheel 10 is removed from the rotating shaft component 80, and a shipping inspection is performed. Here, the processing shape inspection of the chamfered groove (product groove) 68, the dimensional inspection, and the dimensional inspection of the entire chamfered wheel 10 are performed.

As described above, the chamfer wheel 10 is manufactured and shipped to the user.

Hereinafter, a pre-use adjustment method for the chamfered wheel 10 shipped from the manufacturer, which is performed by a user, will be described with reference to FIG.

For example, a user of a chamfered wheel 10 who wants to chamfer the edge of a plate-shaped body fits a fitting hole portion 24 of the chamfered wheel 10 into a predetermined rotating shaft component 90. Then, the user performs the centering work of the rotary shaft component 90 and the disk 12. The centering work is performed using the distance detection sensors S1 and S2. In the above-mentioned example, the dial gauges S1 and S2 are used as the distance detection sensor, but the distance can be detected without contacting the first surface 52 and the second surface 54 of the centering groove 26. An optical sensor may be used.

As shown in FIGS. 12 and 13, after confirming the outer peripheral runout and the side runout of the disk 12, the mounting state of the rotary shaft component 90 and the disk 12 is adjusted as necessary. In this way, by the centering work for adjusting the mounting state of the rotary shaft component 90 and the disk 12, the coaxiality of the rotary shaft component 90 and the central axis C of the chamfer wheel 10 and the rotary shaft with respect to the reference surface 38a of the chamfer wheel 10 The squareness of the central axis of the component 90 and the squareness of the inner peripheral surface of the fitting hole portion 24 with respect to the outer peripheral surface of the rotary shaft component 90 are secured.

The user chamfers the edge of each plate-like body by using the chamfering wheel 10 adjusted in this way. If the plate-shaped body is, for example, a wafer, the chamfering can be performed by relatively moving the chamfering wheel 10 and the wafer to the edge of the orientation flat. Further, chamfering can be performed on the edge of the wafer having the notch.

The grindstone portion 14 is maintained, for example, after being used an appropriate number of times, or, for example, after a predetermined period of time has elapsed. At the time of maintenance, the chamfered wheel 10 is returned from the shipping destination to, for example, the manufacturer of the chamfered wheel 10.
As an example, the grindstone portion 14 is removed from the disc 12, and a new grindstone portion 14 is adhered to and fixed to the inner outer peripheral surface 44 of the disc 12. Hereinafter, steps 7 to 12 are performed in order, and the chamfer wheel 10 is shipped to the same user again, for example. In this way, the disc 12 of the chamfer wheel 10 is reusable. The shape of the chamfered groove 68 may be changed at the time of maintenance based on the customer's instruction with respect to the shape before the maintenance.

The reference surface 38a (flat surface 32a), the fitting hole portion 24, and the centering groove 26 of the disk body 22 of the chamfered wheel 10 manufactured according to the present embodiment maintain the state in which the disk body 22 is held by a certain machine tool. It is carried out by coaxial processing in this state. When the reference surface 38a (flat surface 32a), the fitting hole portion 24, and the centering groove 26 are formed, the holding state of the outer peripheral surface 36 of the disk body 22 is never changed. Therefore, the inner peripheral surface of the fitting hole portion 24 and the first surface 52 and the second surface 54 of the centering groove 26 can obtain desired coaxiality and roundness depending on the machine tool.

When the chamfer wheel 10 is rotated, the outer peripheral surface 66 of the grindstone portion 14 does not become a perfect circle due to the protrusion of the abrasive grains. Therefore, even if the outer peripheral surface 66 of the grindstone portion 14 is measured with a dial gauge or the like, it is easily affected by the variation in measurement. In the present embodiment, the outer peripheral runout is measured using the first surface 52 of the centering groove 26. At this time, since the first surface 52 is formed so as to secure coaxiality with the inner peripheral surface of the fitting hole portion 24, it is far more than the case where the outer peripheral surface 66 of the grindstone portion 14 is measured. It is possible to obtain the measurement accuracy of the outer peripheral runout with high accuracy. Therefore, according to the present embodiment, since there is a centering groove 26 having a first surface 52 orthogonal to the reference surface 38a (plane 32a) and a second surface 54 parallel to the reference surface 38a, there is no centering groove 26. In comparison, centering work can be performed with much higher accuracy.
When the chamfer wheel 10 is rotated, the end surface 62b of the outer peripheral surface 66 of the grindstone portion 14 does not become flat due to the protrusion of the abrasive grains. Therefore, even if the side surface runout (flatness) of the end surface 62b of the outer peripheral surface 66 of the grindstone portion 14 is measured with a dial gauge or the like, it is easily affected by the variation in the measurement. In the present embodiment, the side runout is measured using the second surface 54 of the centering groove 26. At this time, since the second surface 54 of the centering groove 26 is formed so as to secure a squareness with the inner peripheral surface of the fitting hole portion 24, the end surface 62b of the outer peripheral surface 66 of the grindstone portion 14 is measured. It is possible to obtain the measurement accuracy of the side runout with much higher accuracy than in the case of the above. Therefore, according to the present embodiment, since there is a centering groove 26 having a first surface 52 orthogonal to the reference surface 38a (plane 32a) and a second surface 54 parallel to the reference surface 38a, there is no centering groove 26. In comparison, centering work can be performed with much higher accuracy.

In the present embodiment, as shown in FIGS. 11 to 14, centering work is performed before processing the outer peripheral surface 66 of the grindstone portion 14. Therefore, when the chamfering wheel 10 incorporating the rotary shaft component 80 is rotated and the outer peripheral surface 66 of the grindstone portion 14 is ground by another grindstone 74, the outer peripheral surface 66 of the grindstone portion 14 having high roundness is formed. Will be done.

In the present embodiment, as shown in FIGS. 15 and 16, centering work is performed before the chamfering groove 68 is formed on the outer peripheral surface 66 of the grindstone portion 14. Therefore, when the chamfering wheel 10 incorporating the rotary shaft component 80 is rotated to form the chamfering groove 68 on the outer peripheral surface 66 of the grindstone portion 14 by the discharge processing electrode 76, the depth of the grindstone portion 14 with respect to the outer peripheral surface 66 is formed. It is easy to keep the wheel constant.
Then, by performing the centering work before forming the chamfering groove 68 of the chamfering wheel 10, the chamfering groove 68 of the rotating shaft component 80 and the chamfering wheel 10 is between the rotating shaft component 80 and the disk 12 of the chamfering wheel 10. The desired coaxiality and roundness can be obtained between and. Therefore, as a result of improving the contact condition of the rotary shaft component 80 with the chamfered groove 68 of the chamfered wheel 10, the life of the chamfered wheel 10 can be extended and the chipping of the chamfered groove 68 can be suppressed. Can be done.

In the present embodiment, as shown in FIG. 18, centering work is performed before the edge of the plate-like body is machined in the chamfered groove 68 of the outer peripheral surface 66 of the grindstone portion 14. Therefore, when the chamfered wheel 10 incorporating the rotating shaft component 90 is rotated, a dimensional error can be suppressed.

When the centering groove 26 is formed by using the method for manufacturing the chamfered wheel 10 according to the present embodiment, it is not necessary to introduce a machine tool capable of processing with higher accuracy. Therefore, it is possible to provide a chamfered wheel 10 capable of extending the service life while suppressing the manufacturing cost.

In the present embodiment, the first surface 52, the second surface 54, and the third surface 56 are arranged in this order from the position distal to the position proximal to the central axis C of the disk 12, but the opposite. May be. In the present embodiment, an example in which the normal of the first surface 52 is directed toward the central axis C, that is, an example in which the normal line of the first surface 52 is directed inward in the radial direction with respect to the central axis C has been described. For example, the normal of the third surface 56 may be formed so as to be radially outward with respect to the central axis C. In this case, the third surface 56 may be used as the outer peripheral runout measurement surface. When the third surface 56 is used as the outer peripheral runout measurement surface, the first surface 52 may be formed as a surface that is neither parallel to nor perpendicular to the plane 32a serving as a reference surface.

According to the present embodiment, it is possible to provide a method for manufacturing a chamfered wheel, a chamfered wheel, and a method for adjusting the chamfered wheel before use, which are formed more accurately.

The present invention is not limited to the above embodiment, and can be variously modified at the implementation stage without departing from the gist thereof. In addition, each embodiment may be carried out in combination as appropriate, in which case the combined effect can be obtained. Further, the above-described embodiment includes various inventions, and various inventions can be extracted by a combination selected from a plurality of disclosed constituent requirements. For example, even if some constituent elements are deleted from all the constituent elements shown in the embodiment, if the problem can be solved and the effect is obtained, the configuration in which the constituent elements are deleted can be extracted as an invention.
The description corresponding to the invention described in the claims at the time of filing the application of the present application is added below.
[1]
One reference plane on one pair of sides of the disk,
Fitting hole where the rotating shaft component is fitted to the disk,
The first surface of the annular centering groove for adjusting the runout of the outer peripheral surface of the disk when the disk rotates, and
The second surface of the centering groove adjacent to the first surface and for adjusting the runout of the reference surface when the disk rotates.
Is formed concentrically by coaxial processing,
To form a grindstone on the outer peripheral surface of the disk
How to make chamfered wheels, including.
[2]
The first surface is formed so as to be orthogonal to the reference surface formed as a plane.
The second surface is formed so as to be parallel to the reference surface.
The method for manufacturing a chamfered wheel according to Appendix 1.
[3]
A disk with one of the pair of sides as the reference surface,
A fitting hole portion having an inner peripheral surface orthogonal to the reference surface and into which a rotary shaft component is fitted to the disk,
An annular and concave centering groove provided on the reference surface and formed around the central axis of the fitting hole portion,
The grindstone portion provided on the outer peripheral surface of the disk and
Have,
The centering groove is
A first surface for detecting runout of the outer peripheral surface of the disk when the disk is orthogonal to the reference surface and rotates according to the rotation of the rotating shaft component.
A second surface for detecting runout of the reference surface when the disk rotates according to the rotation of the rotating shaft component in parallel with the reference surface.
Has a chamfered wheel.
[4]
Fitting a predetermined rotary shaft component into the fitting hole portion of the chamfered wheel described in Appendix 3 and
The distance detection sensor is moved relative to the first surface of the centering groove in the circumferential direction, and based on the runout of the first surface with respect to the rotary shaft component detected by the distance detection sensor. , Adjusting the mounting state of the disk with respect to the rotating shaft component,
The distance detection sensor or another distance detection sensor is moved relative to the second surface of the centering groove in the circumferential direction, and is detected by the distance detection sensor or the other distance detection sensor. To adjust the mounting state of the disk with respect to the rotating shaft component based on the runout of the second surface with respect to the rotating shaft component.
How to adjust the chamfer wheel before use, including.

10 ... chamfering wheel, 12 ... disk, 14 ... grindstone part, 22 ... disk body, 24 ... fitting hole part, 26 ... centering groove, 32 ... boss, 32a ... flat surface (reference surface), 32b ... flat surface, 34a ... Circular surface, 34b ... Circular surface (engraved surface), 36 ... Outer peripheral surface, 38a ... Side surface (reference surface), 38b ... Side surface (engraved surface), 42 ... Flange portion, 42a ... Outer outer peripheral surface, 44 ... Inner outer circumference Surface, 52 ... 1st surface, 54 ... 2nd surface, 56 ... 3rd surface, S1, S2 ... Distance detection sensor (dial gauge)

Claims (4)

It is a method of manufacturing chamfered wheels.
A reference plane, which is one of a pair of sides of a disk,
Fitting hole where the rotating shaft component is fitted to the disk,
An annular centering groove provided on the reference surface and used for detecting runout corresponding to runout of the outer peripheral surface of the chamfer wheel when the chamfer wheel rotates and adjusting the position of the disk . Surface 1 and
The centering groove, which is provided on the reference surface, is adjacent to the first surface, detects the runout of the reference surface when the chamfer wheel rotates , and adjusts the position of the disk . The surface of 2 is maintained in a state where the disk is held by a machine tool, coaxial processing is performed, and the centering groove is formed concentrically with respect to the central axis of the fitting hole portion, and the first surface is formed. And to ensure the accuracy of the second surface ,
A method for manufacturing a chamfered wheel, which comprises forming an annular grindstone portion on the outer peripheral surface of the disk. The first surface is formed so as to be orthogonal to the reference surface formed as a plane.
The second surface is formed so as to be parallel to the reference surface.
The method for manufacturing a chamfered wheel according to claim 1. It ’s a chamfered wheel.
A disk with one of the pair of sides as the reference surface,
A fitting hole portion having an inner peripheral surface orthogonal to the reference surface and into which a rotary shaft component is fitted to the disk,
An annular and concave centering groove provided on the reference surface and formed concentrically with the central axis of the fitting hole portion.
An annular grindstone portion provided on the outer peripheral surface of the disk, and
Have,
The centering groove is
When the chamfered wheel is orthogonal to the reference surface and rotates according to the rotation of the rotating shaft component, the runout corresponding to the outer peripheral surface of the disk or the outer peripheral surface of the grindstone portion is detected , and the position of the disk is detected. The first surface, which ensures the accuracy used when adjusting , and
When the chamfer wheel rotates according to the rotation of the rotating shaft component , adjacent to the first surface and parallel to the reference surface, when the runout of the reference surface is detected and the position of the disk is adjusted . A chamfered wheel with a second surface that ensures the accuracy used . Fitting a predetermined rotating shaft component into the fitting hole portion of the chamfered wheel according to claim 3.
By rotating the rotary shaft component, the chamfering wheel is rotated together with the rotary shaft component, and the distance detection sensor is moved relative to the first surface of the centering groove in the circumferential direction. To detect the runout of the first surface with respect to the rotating shaft component, which is detected by the distance detection sensor,
By rotating the rotary shaft component, the chamfering wheel is rotated together with the rotary shaft component, and the distance detection sensor or another distance detection sensor is rotated in the circumferential direction with respect to the second surface of the centering groove. To detect the runout of the second surface with respect to the rotating shaft component, which is detected by the distance detection sensor or the other distance detection sensor .
Based on the detection result of the runout of the first surface detected by the distance sensor and the detection result of the runout of the second surface detected by the distance detection sensor or the other distance detection sensor, the said To adjust the mounting state of the rotating shaft component and the chamfered wheel.
How to adjust the chamfer wheel before use, including.

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