JP2008044020A - Method and device for adjusting oscillation of electrodeposited internal gear type grinding wheel - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a method and device for adjusting oscillation of a grinding wheel of an electrodeposited internal gear type, which easily performs oscillation adjusting work for making the center axis of the grinding wheel of the electrodeposited internal gear type formed by electrodepositing an abrasive grain layer on the annular inner peripheral surface, match with the rotational axis of a grinding device when fitting to the grinding device. <P>SOLUTION: The oscillation adjusting device 30 is provided with a grinding part 3 of a gear type in the inner peripheral surface of a circular ring-like base metal 2 to make the center axis O of the grinding wheel 1 of thr electrodeposited internal gear type having a ring-like adjustment surface 8 around the center axis O of the base metal 2, match with the rotational axis X of the grinding wheel. The oscillation adjusting device 30 comprises a presser roller 32 which is formed in the base metal 2 freely to approach for abutment toward an adjustment surface 8 in the radial direction in relation to the rotational axis X and opposed to the adjustment surface 8 formed around the center axis O, while rotating the base metal 2 around the rotational axis X. The presser roller 32 pushes the adjustment surface 8 to make the center axis O of the grinding wheel 1 of the electrodeposited internal gear type, match with the rotational axis X of the grinding wheel. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention adjusts the central axis of the electrodeposited internal gear type grindstone for grinding the tooth surface formed on the outer periphery of the gear serving as a workpiece so as to coincide with the rotation axis of the grinding apparatus for mounting the electrodeposited internal gear type grindstone. The present invention relates to a runout adjustment method and runout adjustment apparatus for an electrodeposited internal gear type grindstone.

  Conventionally, the central axis of the internal gear type grindstone in which the tooth mold for grinding the tooth surface formed on the outer periphery of the gear serving as the workpiece is formed on the inner tooth surface of the base metal, and the rotation axis of the rotating mechanism of the grinding device When the internal gear type grindstone attached to the grinding device is rotated around the rotation axis, the inner tooth surface is dressed by the dress gear, and the shape forming the inner tooth surface is a position around the rotation axis. The center axis and the rotation axis were made to coincide with each other by molding into the same shape.

  However, for example, in the case of the electrodeposited internal gear type grindstone described in Patent Document 1, hard abrasive grains containing hard CBN or the like are electrodeposited on the inner tooth surface of a substantially annular base metal that forms the inner teeth. Therefore, it is difficult to match the central axis of the electrodeposited internal gear type grindstone with the rotational axis of the grinding device by dressing the inner tooth surface and forming it into a predetermined size and shape.

  For this reason, it is necessary to attach the central axis of the base metal having the inner tooth surface having a predetermined size and shape by electrodeposition of CBN abrasive grains so as to coincide with the rotational axis of the drive unit of the grinding apparatus. However, since the base of the internal gear type grindstone is annular, and the central axis is not formed on the base, an index for matching the central axis with the rotation axis of the drive unit cannot be provided. It is very difficult to confirm whether or not the center axis of the internal gear type grindstone matches the rotation axis of the drive unit.

Therefore, for example, as shown in FIG. 5, in order to confirm whether the center axis O of the electrodeposited internal gear wheel 1 and the rotation axis X of the drive unit coincide with each other, a reference surface 8 is provided on the base 2. The run-out amount when the electrodeposited internal gear type grindstone 1 is rotated by contacting the reference surface 8 with the tester 20 is detected, and the runout amount is detected with the central axis O of the electrodeposited internal gear type grindstone 1 and the above-described amount. As a substitute characteristic of the amount of eccentricity with the rotational axis X, a technique for detecting the amount of eccentricity between the central axis O of the electrodeposited internal gear wheel 1 and the rotational axis X is disclosed (for example, see Patent Document 2).
JP-A-8-118145 JP 2006-15416 A

  However, even if the amount of eccentricity between the central axis of the electrodeposited internal gear type grindstone and the rotation axis can be detected as a runout amount of the internal gear type grindstone by the tester using the above technique, the internal gear type grindstone It is not easy to attach the center axis of the grinding machine and the rotation axis of the grinding machine to the grinding machine, and there is a problem that it takes a lot of time to adjust the runout.

  The present invention has been made in consideration of such circumstances, and is an electrodeposited internal gear type in which an abrasive layer of superabrasive grains such as CBN abrasive grains is electrodeposited on the inner peripheral surface of an annular base metal. Runout of an electrodeposited internal gear type grindstone that allows for easy runout adjustment in a short time when the grindstone is attached to the grinding device with the center axis of the electrodeposited internal gear type grindstone aligned with the rotational axis of the grinding device An object is to provide an adjustment method and a shake adjustment device.

In order to achieve the above object, the present invention proposes the following means.
According to the first aspect of the present invention, there is provided an electrodeposited internal gear-type grindstone in which a gear-type grinding portion having an abrasive layer in which superabrasive grains are electrodeposited is formed on the inner peripheral surface of an annular base metal. An electrodeposition internal gear-type grindstone for adjusting runout so that the central axis of the ring formed by the base metal and the rotational axis of a driving unit of a grinding apparatus that performs grinding by rotating the base metal coincide with each other A swing adjustment method, wherein the pressing member is opposed to an adjustment surface of a ring formed on the base metal and centered on the central axis, and the base metal is rotated around the rotational axis, A pressing member is brought close to the adjustment surface in a radial direction with respect to the rotation axis so as to come into contact with the adjustment surface, and further, the pressing member is pressed against the adjustment surface so that a central axis of the electrodeposition internal gear type grindstone It is characterized in that the rotational axes of the grinding device are made coincident.

  According to a fourth aspect of the present invention, there is provided an electrodeposited internal gear-type grindstone in which a gear-type grinding portion having an abrasive layer in which superabrasive grains are electrodeposited is formed on the inner peripheral surface of an annular base metal. An electrodeposition internal gear-type grindstone for adjusting runout so that the central axis of the ring formed by the base metal and the rotational axis of a driving unit of a grinding apparatus that performs grinding by rotating the base metal coincide with each other A runout adjustment device, formed on the base metal, facing a ring-shaped adjustment surface centered on the central axis line, and rotating the base metal around the rotational axis line in a radial direction with respect to the rotational axis line A pressing member that can be moved toward and away from the adjustment surface, and the pressing member presses the adjustment surface to match the central axis of the electrodeposited internal gear wheel and the rotation axis of the grinding device. It is characterized by making it.

  According to the run-out adjustment method and run-out adjustment device for an electrodeposited internal gear type grindstone according to the present invention, the electrodeposition internal gear type grindstone is temporarily moved with respect to the rotating mechanism of the grinding device to such an extent that the electrodeposition internal gear type grindstone is finely moved by applying a predetermined pressing force. The pressing member is opposed to an adjustment surface that is fixed and formed around the central axis of the ring formed by the base metal. After that, while rotating the base metal of the electrodeposited internal gear type grindstone, the pressing member is moved in the radial direction with respect to the rotation axis so as to approach the adjustment surface, abuts and presses the adjustment surface, and the drive unit of the grinding apparatus Detects the amount of deflection of the base metal relative to the rotation axis.

  At this time, when the adjustment surface is constituted by the inner peripheral surface like the electrodeposited internal gear type grindstone described in Patent Document 2, the center axis is not aligned with the rotation axis and is eccentric. Then, the adjustment surface located opposite to the central axis with the rotation axis interposed therebetween is close to the rotation axis, and the adjustment surface of the adjacent portion is pressed by a pressing member so that the adjustment surface is separated from the rotation axis. When the base metal is moved in the direction to be separated, the central axis of the base and the rotation axis are brought close to each other, and if the deflection is large, the adjustment surface in the direction where the eccentric amount between the central axis and the rotation axis is large is initially the rotational axis. It starts only on the side close to, and as the runout adjustment progresses, the entire circumference of the adjustment surface is reached.

  The invention described in claim 2 is the runout adjustment method of the electrodeposited internal gear type grindstone according to claim 1, wherein the adjustment surface is formed on one end face side of the base metal, and the central axis is The inner peripheral surface is a cylindrical surface formed in the center.

  According to the run-out adjustment method for an electrodeposited internal gear type grindstone according to the present invention, the adjustment surface is a cylindrical inner peripheral surface formed around the central axis of the base metal, and the adjustment surface is arcuate. Since it is a recess, pressing by the pressing member can be performed easily and stably.

  According to a third aspect of the present invention, there is provided a method for adjusting the deflection of an electrodeposited internal gear type grindstone according to the first or second aspect, wherein the amount of deflection of the base metal rotated around the rotation axis is measured by a tester. It is detected by.

  The invention described in claim 6 is the runout adjustment device for the electrodeposited internal gear type grindstone according to claim 4 or 5, wherein the runout amount of the base metal rotated around the rotation axis is detected. It is characterized by having a tester.

  According to the run-out adjustment method and run-out adjustment device for the electrodeposited internal gear type grindstone according to the present invention, the adjustment surface of the base metal with the pressing member until the run-out amount of the base metal with respect to the rotation axis detected by the tester falls within an allowable range. By pressing, the central axis of the electrodeposited internal gear type grindstone and the rotational axis of the grinding apparatus can be made substantially coincident. In this case, since the eccentric amount of the center axis of the base metal and the rotation axis is detected as a shake amount by the tester, the shake amount can be detected quantitatively, and as a result, the shake amount is accurately within an allowable range. In addition, the cost can be reduced easily and the cost for adjustment can be reduced.

  The invention described in claim 5 is the deflection adjusting device for an electrodeposited internal gear type grindstone according to claim 4, wherein the pressing member is a pressing roller, and the pressing roller is parallel to the rotation axis. It is characterized by being able to rotate around the axis.

  According to the deflection adjusting device for an electrodeposition internal gear type grindstone according to the present invention, since the pressing member is a pressing roller that is rotatable in parallel to the rotation axis, the pressing roller is in line contact with the adjustment surface, Since the pressing roller rotates with respect to the adjustment surface, the base metal is prevented from being moved in the circumferential direction other than the pressing direction, and the base metal can be accurately moved in the direction in which the pressing roller presses. Further, even when a large force is applied during pressing, since the pressing roller rotates, it is possible to suppress friction that causes wear between the adjustment surface and the pressing roller.

According to the run-out adjustment method and run-out adjustment device for an electrodeposited internal gear type grindstone according to the present invention, the pressing member is brought into contact with the adjustment surface centered on the central axis of the ring, so that the base metal of the drive unit of the grinding device While rotating around the rotation axis, the runout amount of the base metal with respect to the rotation axis is detected by the tester and pressed until the runout is within the allowable range, so the central axis of the electrodeposition internal gear type grinding wheel and the drive part of the grinding device Adjustment to match the rotation axis can be easily performed.
As a result, the tooth surface on the outer periphery of the gear can be formed with high precision into a predetermined size and shape by the electrodeposited internal gear type grindstone.

  FIG. 1 to FIG. 3 show an embodiment of a shake adjusting device for an electrodeposited internal gear type grindstone according to the present invention. In FIG. 1, reference numeral 1 denotes an electrodeposited internal gear type whose shake is adjusted by the shake adjusting device. A reference numeral 30 denotes a wobble adjusting device. Further, symbol O represents the central axis of the electrodeposited internal gear wheel 1 and the base metal 2, and symbol X represents the rotational axis of the rotating mechanism (drive unit) 11 of the grinding apparatus.

The electrodeposited internal grinding wheel 1 includes a base metal 2 formed of a metal material such as tool steel having an annular shape centered on the central axis O, and the inner peripheral surface of the base metal 2 has a gear-shaped inner surface. A grinding part 3 is formed.
As shown in FIG. 3, the grinding part 3 is formed with a plurality of tooth dies 4 which are uneven in the radial direction of the base metal 2 and extend in the central axis O direction in the circumferential direction on the inner peripheral surface of the base metal 2. An abrasive layer 5 in which superabrasive grains such as CBN abrasive grains and diamond abrasive grains are dispersed in a metal plating phase such as Ni and fixed by electrodeposition is formed on the surface. The tooth mold 4 in a state in which the gear 5 is formed meshes with the tooth surface on the outer periphery of the gear W to be ground by the electrodeposited internal gear wheel 1 so that the tooth surface of the gear W can be formed into a predetermined size and shape. Dimensions and shape.

  On one end face side 6 of the base metal 2, an annular wall portion 7 formed coaxially with the central axis O of the base metal 2 is formed, and the inner peripheral surface of the annular wall portion 7 is It is set as the annular | circular shaped adjustment surface 8 in the electrodeposition internal gear type grindstone 1 of this form, and this adjustment surface 8 is extended to the edge part of the one end surface side 6 of the grinding part 3. FIG.

  The annular wall portion 7 has a cross section including the central axis O as shown in FIG. 2, and the inner peripheral surface of the adjustment surface 8 is cylindrical with the central axis O as the center. The inner diameter, that is, the reference diameter D is larger than the root diameter d of the tooth mold 4 of the grinding part 3. Further, the outer peripheral surface of the base metal 2 has the same diameter including the annular wall portion 7, and has a cylindrical surface shape with the central axis O as the center. An end surface 10 on one end surface side 6 of the base metal 2 and an end surface 9 on the other end surface side of the base metal 2 are flat surfaces perpendicular to the central axis O.

The electrodeposited internal grinding wheel 1 is attached to a rotating mechanism 11 of a grinding apparatus as shown in FIG. 4 and rotated around a rotation axis X, thereby forming a workpiece as shown by a two-dot chain line in FIG. The tooth surface on the outer periphery of the gear W is ground.
Here, what is indicated by reference numeral 12 in FIG. 4 is a mounting bracket of a rotating mechanism 11 of a grinding apparatus to which the electrodeposited internal gear type grindstone 1 is mounted. The mounting bracket 12 is also formed in an annular shape, and its central axis The rotation axis X is supported on the grinding machine by a bearing 13 so that O and the rotation axis X coincide with each other so as to have an intersection angle with the axis C of the gear W (see FIG. 1). Driven around X.
The electrodeposited internal gear type grindstone 1 is detachably attached to the inner periphery of the mounting bracket 12 so that the center axis O is coaxial with the rotation axis X of the rotation mechanism 11.

  In other words, the inner peripheral surface 14 of the mounting bracket 12 has a cylindrical surface centered on the rotation axis X having an inner diameter large enough to fit the outer periphery of the base metal 2 of the electrodeposited internal gear type grindstone 1. Thus, after the base metal 2 of the electrodeposited internal gear type grindstone 1 is fitted in the inner peripheral surface 14 of the mounting bracket 12, the base metal is placed in the inner peripheral surfaces 14 on both sides of the base metal 2. The ring-shaped collars 15 and 16 having a square cross section having an outer diameter equal to the outer diameter of 2 and an inner diameter larger than the reference diameter D are respectively inserted.

  Further, after the base metal 2 and the collars 15 and 16 of the electrodeposited internal gear type grindstone 1 are fitted and inserted into the inner periphery of the mounting bracket 12 in this manner, The annular flanges 17 and 18 having an inner diameter smaller than the inner diameter of the inner peripheral surface 14 and larger than the inner diameters of the collars 15 and 16 are attached so as to be centered on the rotation axis X.

  Here, a plurality of mounting bolts 19 are inserted through the flanges 17 and 18 in parallel with the rotation axis X with a space in the circumferential direction between the flanges 17 and 18. Is screwed into the both end faces of the mounting bracket 12 so that the flanges 17 and 18 face each other in a state where the inner peripheral portion protrudes to the inner peripheral side of the inner peripheral surface 14 of the mounting bracket 12. Installed to approach.

  Of these, one flange 17 has a square cross section, while the other flange 18 has its inner peripheral portion fitted into the inner peripheral surface 14 of the mounting bracket 12 so that one flange 17 side. And the inner diameter is smaller than the one flange 17.

  Further, the end faces 17A, 18A of the flanges 17, 18 that protrude toward the inner peripheral side of the inner peripheral surface 14 and face each other are disposed within the inner peripheral surface 14 of the electrodeposited internal gear wheel 1 and the collars 15, 16 In the state where the mounting bolt 19 is screwed in and the flanges 17 and 18 are attached to both end faces of the mounting bracket 12, both are flat surfaces perpendicular to the rotation axis X of the mounting bracket 12, and this rotation axis The distance in the X direction is slightly smaller than the sum of the width of the collars 15 and 16 in the direction of the rotation axis X and the width between the end faces 9 and 10 of the base metal 2 of the electrodeposited internal gear type grindstone 1. Has been.

  Accordingly, the electrodeposition internal gear wheel 1 and the collars 15 and 16 are inserted into the inner peripheral surface 14 of the mounting bracket 12 and the flanges 17 and 18 are mounted on the mounting bracket 12 (normally, the flange 18 is mounted). After fitting the collar 15, the electrodeposited internal gear wheel 1, and the collar 16 in this order onto the mounting bracket 12, the flange 17 is attached.) The electrodeposited internal gear wheel 1 is flanged via the collars 15, 16. 17 and 18, and attached to the mounting bracket 12 so as to be sandwiched between the end faces 17A and 18A.

  When the electrodeposited internal gear type grindstone 1 having the adjustment surface 8 formed of an annular inner peripheral surface is rotated around the rotation axis X of the grinding device, the runout adjusting device 30 The eccentric amount of the central axis O of the base metal 2 and the rotational axis X is made to be rotatable around an axis C2 parallel to the rotational axis X of the grinding device and a tester 20 that detects the deflection amount of the adjustment surface 8 as a substitute characteristic. A pressing roller (pressing member) 31 is provided, and the pressing roller 31 can be brought into contact with the adjustment surface 8 and can press the adjustment surface 8.

  Further, in the shake adjusting device 30, the pressing roller 31 is brought into contact with the adjusting surface 8 of the electrodeposited internal gear type grindstone 1 and presses the adjusting surface 8 radially outwardly so that the central axis O of the base metal 2 The center axis O of the base metal 2 of the electrodeposition internal gear type grindstone 1 and the rotation axis X are within an allowable range and substantially coincide with each other by reducing the amount of eccentricity of the rotation axis X of the grinding apparatus.

The pressing roller 31 includes a roller main body 32 formed in a cylindrical shape, and rotating shafts 34 and 36 that support the roller main body 32 at both ends thereof. The cylindrical portion of the roller main body 32 is formed of the base metal 2. The pressing portion 32 </ b> A presses the adjustment surface 8.
In this embodiment, the pressing roller 31 is supported by a holding tool 37 on a machine of a grinding apparatus separated from the rotation mechanism 11, and the holding tool 37 includes centers 37A and 37B, and a gear W is provided by the centers 37A and 37B. Both ends of the rotating shaft are supported. Further, the centers 37A and 37B are disposed so that the pressing roller 31 is rotatable and the axis C2 of the pressing roller is parallel to the rotation axis X of the grinding apparatus.

The tester 20 is fixed on the machine of the grinding apparatus separated from the rotating mechanism 11, and the tip of the tester 20 faces the adjustment surface 8 on the inner periphery of the annular wall 7 toward the outer periphery of the annular wall 7. An axial contact terminal 20 </ b> A that is biased and abutted is provided, and fluctuations in the contact position of the contact terminal 20 </ b> A can be detected by, for example, a meter reading 20 </ b> B provided in the tester 20.
The tester 20 attaches the electrodeposition internal gear type grindstone 1 attached to the rotating mechanism 11 of the grinding apparatus to the rotating mechanism 11 as described above, as shown in FIG. With the electrodeposition internal gear type grindstone 1 attached thereto, the amount of deflection of the adjustment surface 8 is detected while rotating around the rotation axis X.

  Accordingly, when the electrodeposited internal gear-type grindstone 1 is rotated around the rotation axis X together with the mounting bracket 12 while the tip of the contact terminal 20A is in contact with the adjustment surface 8, the base metal 2 of the electrodeposited internal gear-type grindstone 1 is removed. When the center axis O is mounted in a state of being deviated from the rotation axis X of the mounting bracket 12, the base metal 2 is shaken, and accordingly, the contact position of the tip of the contact terminal 20 </ b> A to the adjustment surface 8 is changed. This is detected and detected by the tester 20.

  That is, when the direction of eccentricity of the electrodeposited internal gear type grindstone 1 coincides with the line connecting the rotation axis X of the mounting bracket 12 and the tip of the contact terminal 20A of the tester 20, the variation of the contact position becomes the largest and the eccentricity thereof. Is detected, and the amount of eccentricity is detected by the probe 20B, so that the deflection of the electrodeposited internal gear wheel 1 can be easily detected.

A method for causing the center axis O of the base metal 2 of the electrodeposition internal gear type grindstone 1 to coincide with the rotation axis X of the rotating mechanism 11 of the grinding apparatus by using the shake adjusting device 30 will be described.
First, as shown in FIG. 4, a flange 18 is inserted into the other end face side of the mounting bracket 12 provided in the rotating mechanism 11 of the grinding apparatus, and is fixed to the mounting bracket 12 with mounting bolts 19.
Next, in order from the flange 18 side, the collar 16, the electrodeposition internal gear type grindstone 1, the collar 15, and the flange 17 are arranged, and the flange 17 is screwed with the mounting bolt 19 so that the base metal 2 can be slightly moved in the radial direction. As a result, the electrodeposited internal gear wheel 1 is temporarily fixed to the rotating mechanism 11 of the grinding device via the mounting bracket 12.

Next, the centers 37A and 37B constituting the holder 37 are arranged so that the axis C2 of the pressing roller 31 is parallel to the rotation axis X of the grinding device in a state where the pressing roller 31 is supported by the holder 37. To do. At this time, the holding tool 37 sets the moving direction, that is, the pressing direction to be radially outward of the rotating mechanism 11.
Further, the contact terminal 20A of the tester 20 is brought into contact with the adjustment surface 8 of the electrodeposited internal gear type grindstone 1 so that the amount of deflection of the adjustment surface 8 with respect to the rotation axis X can be detected.

Next, the electrodeposited internal gear type grindstone 1 temporarily fixed to the mounting bracket 12 of the rotating mechanism 11 is rotated around the rotation axis X of the grinding apparatus, and the amount of deflection of the adjustment surface 8 is detected by the tester 20.
While rotating the electrodeposited internal gear wheel 1 around the rotation axis X, the pressing roller 31 is moved little by little in the radial direction of the rotation mechanism 11, that is, in the direction away from the rotation axis X. The pressing portion 32 </ b> A of the main body 32 is brought into contact with the adjustment surface 8 at a site close to the rotation axis X. When the amount of deflection is large, the pressing of the adjustment surface 8 by the pressing roller 31 initially starts only on the side where the adjustment surface 8 in the direction in which the eccentric amount between the center axis O and the rotation axis X is large is close to the rotation axis X, As the deflection adjustment proceeds, the entire circumference of the adjustment surface 8 is reached.

Subsequently, by moving the pressing roller 31, the electrodeposition internal gear wheel 1 is rotated, and when the adjustment surface 8 near the rotation axis X comes to the position of the pressing roller 31, the adjustment surface 8 is It is pressed radially outward and moved away from the rotation axis X.
As a result, the ring constituting the adjustment surface 8 approaches the position around the rotation axis X, and the center axis O of the electrodeposited internal gear wheel 1 and the rotation axis X coincide with each other. In this state, the pressing roller 31 continues to rotate while being in sliding contact with the entire circumference of the adjustment surface 8.

Whether or not the center axis O of the electrodeposited internal gear wheel 1 and the rotation axis X coincide with each other is determined by using the amount of eccentricity of the center axis O and the rotation axis X as a substitute characteristic. When the tester 20 detects and the amount of shake is within the allowable range, the shake adjustment is completed.
When the runout adjustment is completed, the mounting bolt 19 located on one end face side 6 is screwed in, the base metal 2 is strongly pressed by the flange 17, and the electrodeposition internal gear-type grindstone 1 is rotated by the grinding device via the mounting bracket 12. Securely fixed to the mechanism 11.
In this state, the electrodeposited internal gear type grindstone 1 is attached to the grinding apparatus in a state where the center axis O and the rotation axis X coincide with each other.

  According to the run-out adjustment method of the electrodeposited internal gear type grindstone according to the above embodiment, the central axis O of the electrodeposited internal gear type grindstone 1 is moved in a direction that coincides with the rotation axis X of the grinding device, and is detected by the tester 20 Since the adjustment surface 8 is pressed by the pressing roller 31 until the runout amount of the base metal 2 is within an allowable range, the center axis O of the electrodeposited internal gear wheel 1 and the rotation axis X of the rotating mechanism 11 are easily and reliably allowed. The central axis O and the rotational axis X can be made to coincide with each other within the range.

In addition, since the adjustment surface 8 is an inner peripheral surface formed with the central axis O of the base metal 2 as the center, the adjustment surface 8 is an arc-shaped concave portion, so that the pressing by the pressing roller 31 is easy and stable. Can be done.
In addition, since the pressing member is the pressing roller 31, the pressing roller 31 is in line contact with the adjustment surface 8 and can stably press the adjustment surface 8, and the pressing roller 31 contacts the adjustment surface 8. On the other hand, since the rotation contact is made, it is possible to suppress the base metal 2 from being pressed and moved in the circumferential direction other than the pressing direction, so that the base metal 2 can be stably pressed in a desired direction. Further, even when a large force is applied when the adjustment surface 8 is pressed, the pressure roller 31 rotates, so that friction that causes wear may occur between the adjustment surface 8 and the pressure roller 31. It is suppressed.

  Further, according to the shake adjusting device 30 according to the above-described embodiment, the pressing roller 31 is brought into contact with the adjustment surface 8, and the central axis O of the base metal 2 and the rotation axis X are matched while pressing the adjustment surface 8. Since the eccentric amount between the central axis O of the base metal 2 and the rotational axis X at that time is detected by the tester 20 as the deflection amount of the base metal 2, the center of the base metal 2 can be easily and reliably detected. The axis O and the rotation axis X of the grinding apparatus can be matched.

  In the above embodiment, the adjustment surface 8 that is pressed by the pressing roller 31 that is a pressing member of the shake adjusting device 30 is formed on the inner peripheral surface of the annular wall portion 7 of the electrodeposited internal gear type grindstone 1. As described above, the adjustment surface 8 that the pressing member presses and adjusts the deflection is, for example, one end surface side 6 of the base metal 2 or the other end surface side, and the outer periphery is centered on the central axis O of the base metal 2. The adjustment surface may be formed on the outer peripheral surface of the electrodeposited internal gear type grindstone 1 by providing an adjustment surface having a cylindrical shape. When the adjustment surface 8 is formed on the outer peripheral surface of the electrodeposited internal gear type grindstone 1, the adjustment surface 8 located on the opposite side of the rotation axis X across the central axis O is pressed by the pressing member. By pressing in the X direction to bring the adjustment surface 8 closer to the rotation axis X, the center axis O of the electrodeposited internal gear wheel 1 and the rotation axis X are adjusted to coincide with each other.

  In the above-described embodiment, the case where the shake amount is detected by the tester 20 has been described. However, the ring constituting the adjustment surface 8 approaches the position around the rotation axis X, and the pressing roller 31 is adjusted. You may adjust so that the central axis O of the electrodeposition internal gear type grindstone 1 and the said rotation axis line X may correspond by detecting visually or with a sensor that it continues sliding in contact with the perimeter of the surface 8.

  Moreover, in the said embodiment, although the case where the press roller 31 was supported by the holder 37 was demonstrated, as a holder which supports the press roller 31, the press roller 31 is rotatably hold | maintained and an adjustment surface As long as the adjustment surface 8 can be pressed by approaching and abutting on the workpiece 8, adjustment may be performed using a workpiece holder for supporting both ends of the rotation shaft of a gear serving as a workpiece. .

  In the above embodiment, the case where the pressing member of the shake adjusting device 30 is configured by the pressing roller 31 has been described. However, the pressing member of the shake adjusting device 30 can be pressed while sliding on the rotating adjustment surface 8. A member other than the pressing roller 31 such as a sphere or a spatula member may be used.

  In the runout adjustment of the electrodeposited internal gear type grindstone 1 of the above embodiment, the pressing direction of the pressing roller 31 is orthogonal to the central axis O of the base metal 2 and passes through the central axis O to form the adjustment surface 8. Although the case where the cylindrical shape is radially outward has been described, the pressing direction of the pressing roller 31 does not have to pass through the central axis O of the base metal 2, and the cylindrical radial direction forming the adjustment surface 8 What is necessary is just to have the component which goes outside.

  Moreover, in the electrodeposition internal gear type grindstone 1 of the embodiment, the case where the pressing member of the shake adjusting device 30 is configured by one pressing roller 31 has been described, but the shake adjusting device using a plurality of pressing rollers 31 is described. 30 may be configured.

  In the run-out adjustment method and run-out adjustment device 30 of the electrodeposition internal gear type grindstone 1 of the above embodiment, the contact surface 20A of the tester 20 contacts and the measurement surface for measuring the run-out amount and the adjustment surface 8 are the base metal 2. However, the inner peripheral surface of the stepped hole having a plurality of inner peripheral surfaces formed coaxially is used as a measurement surface, and the other inner peripheral surfaces are described. May be used as the adjustment surface, or the adjustment surface and the measurement surface may be formed on opposite end surfaces with the grinding part 3 interposed therebetween.

  Further, in the above embodiment, the case where the contact terminal 20A of the tester 20 is brought into contact with the adjustment surface 8 to detect the shake has been described. However, for example, the adjustment surface 8 is shaken by an optical non-contact means. It is also possible to detect.

It is a perspective view which shows one Embodiment of the electrodeposition internal gear type grindstone of this invention. It is a fragmentary sectional view in alignment with the central axis O of the electrodeposition internal gear type grindstone 1 of embodiment shown in FIG. It is ZZ sectional drawing in FIG. It is a fragmentary sectional view along the rotation axis O of the rotation mechanism 11 which attached the electrodeposition internal gear type grindstone 1 of embodiment shown in FIG. It is a figure which shows the conventional method which concerns on the detection of the deflection | deviation amount of an electrodeposition internal gear type grindstone.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Electrodeposition internal gear type grindstone 2 Base metal 3 Grinding part 5 Abrasive grain layer 6 One end surface side of base metal 2 7 Circular wall part 8 Reference surface 11 Rotating mechanism 12 Mounting bracket 14 Inner peripheral surface 15 of mounting bracket 12 16 Collar 17 and 18 Flange 19 Mounting bolt 20 Runout tester 20A Contact terminal 30 Runout adjustment device O Center axis W of base metal 2 Gear (workpiece)
C Gear W axis

Claims (6)

An electrodeposited internal gear type grindstone in which a gear-type grinding part having an abrasive layer in which superabrasive grains are electrodeposited is formed on the inner peripheral surface of an annular base metal, the ring of the base made of the base metal A method for adjusting a runout of an electrodeposition internal gear type grindstone for adjusting runout so that a central axis and a rotation axis of a drive unit of a grinding apparatus that performs grinding by rotating the base metal are matched,
The pressing member is formed with respect to the rotation axis while the pressing member is opposed to an adjustment surface of an annular shape centered on the central axis and the base metal is rotated around the rotation axis. Approaching the adjustment surface in the radial direction to contact the adjustment surface, and further pressing the pressing member against the adjustment surface, the central axis of the electrodeposited internal gear wheel and the rotation axis of the grinding device A method for adjusting runout of an electrodeposited internal gear-type grindstone, characterized by matching them. A method for adjusting runout of the electrodeposited internal gear-type grindstone according to claim 1,
The adjustment surface is formed on one end surface side of the base metal and is an inner peripheral surface having a cylindrical surface formed around the central axis, and the runout adjustment of the electrodeposited internal gear type grindstone is characterized in that Method. A method for adjusting runout of an electrodeposited internal gear-type grindstone according to claim 1 or 2,
A runout adjustment method for an electrodeposition internal gear type grindstone, wherein a runout amount of the base metal rotated around the rotation axis is detected by a tester. An electrodeposited internal gear type grindstone in which a gear-type grinding part having an abrasive layer in which superabrasive grains are electrodeposited is formed on the inner peripheral surface of an annular base metal, the ring of the base made of the base metal A runout adjustment device for an electrodeposited internal gear type grindstone for adjusting runout so that a central axis and a rotation axis of a drive unit of a grinding device for grinding by rotating the base metal are matched,
The base metal is formed so as to face an adjustment surface of a ring centered on the central axis, and while rotating the base metal around the rotation axis, the radial direction with respect to the rotation axis is directed toward the adjustment surface. Provided with a pressing member that can be approached and contacted,
The pressing member presses the adjustment surface so that the central axis of the electrodeposited internal gear wheel is aligned with the rotational axis of the grinding device. The runout adjustment device for an electrodeposited internal gear type grindstone according to claim 4,
The pressing member is a pressing roller,
The apparatus for adjusting runout of an electrodeposition internal gear type grindstone, wherein the pressing roller is rotatable about an axis parallel to the rotation axis. The runout adjustment device for an electrodeposited internal gear type grindstone according to claim 4 or 5,
An apparatus for adjusting runout of an electrodeposition internal gear type grindstone, comprising a tester for detecting a runout amount of the base metal rotated about the rotation axis.

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