JP2016061618A - Device and method for measuring inclination range - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a device and method for measuring an inclination range, capable of efficiently measuring the inclination range where a plate surface direction is inclined from the orthogonal direction of a shaft, in a short time when applying a load to the plate member of an assembly.SOLUTION: In a measuring device 34, rotation means 36 rotates a pulley 10 around the axis O of a shaft 16. Load applying means 40 selectively applies first and second loads to a plate part 12. The first load displaces an opposite surface 14a so that a reference position P side in a plate surface direction X1 is inclined from an orthogonal direction X2 of the shaft toward one side of the shaft direction Y2, and the second load is inclined toward the other side. Measuring means 42 continuously measures first and second displacement amounts for every a plurality of measurement rotation angles at the reference position P without stopping the rotation of the plate part 12. Calculation means calculates an inclination range from the first and second displacement amounts measured at measurement rotation angles corresponding to each other.SELECTED DRAWING: Figure 3

Description

  The present invention applies a load to a plate member of an assembly configured by inserting one end side of the shaft portion of the shaft member into the hollow portion of the plate member, and the plate surface direction perpendicular to the extending direction of the hollow portion is The present invention relates to a tilt range measuring apparatus for measuring a tilt range tilted from an axis orthogonal direction orthogonal to the axial direction of a shaft portion, and a method for measuring the tilt range.

  For example, a belt-type continuously variable transmission mechanism (CVT), which is an automobile transmission, has a configuration in which a belt is wound around each pulley groove of a set of pulleys including a driving side and a driven side. Each of the pulleys is an assembly of a movable sheave, which is a plate member having a disk-shaped plate portion, and a shaft member having a shaft as a shaft portion, and is a hollow portion provided substantially at the center of the movable sheave (plate portion). And is assembled by inserting one end side of the shaft. That is, if the direction orthogonal to the extending direction of the hollow portion is the plate surface direction, the pulley is assembled so that the plate surface direction is substantially orthogonal to the axial direction of the shaft.

  A disc-shaped fixed sheave is provided on the other end side of the shaft, and a pulley groove is formed between the fixed sheave and the movable sheave. The width of the pulley groove can be adjusted by moving the movable sheave forward and backward relative to the fixed sheave. For this adjustment, the movable sheave can be slid along the axial direction of the shaft by a hydraulic actuator provided on the back side thereof. The relative position of the movable sheave with respect to the shaft is fixed such that the movable sheave rotates in the same phase as the fixed sheave as the shaft member rotates.

  As described above, the ball spline structure is provided on the outer peripheral wall of the shaft and the inner peripheral wall of the hollow portion of the movable sheave as a configuration that allows the movable sheave to slide in the axial direction with respect to the shaft and restricts relative movement in the rotational direction. It has been. In other words, each of the outer peripheral wall and the inner peripheral wall includes a plurality of ball spline grooves along the axial direction at predetermined intervals in the rotational direction so that the rolling elements are accommodated so as to roll between each other. Provided.

  Basically, in the CVT configured as described above, the width of the pulley groove of one pulley and the width of the pulley groove of the other pulley are reduced while rotating each pulley. Thereby, the belt winding radius (effective diameter) with respect to each of the pulleys can be continuously changed to set the transmission ratio steplessly.

  When manufacturing such a pulley, it is preferable to adopt a line production method to obtain a large amount of products of a constant quality within an assumed time. In recent years, further improvement in the quality of pulleys has been desired due to the diversification of vehicle types equipped with CVT. Therefore, it is possible to perform a quality inspection in advance whether the molding accuracy and assembly accuracy of the movable sheave and the shaft member belong to an appropriate setting range, and to exclude those that do not belong to the setting range from the pulley manufacturing process. Conceivable.

  For example, Patent Document 1 proposes measuring a shake due to rotation of an end portion of a movable sheave by a workpiece dimension measuring device and determining whether or not the measured value belongs to a set range. That is, the casing that constitutes the hydraulic actuator is caulked and coupled only to the edge of the movable sheave where the measured value belongs to the set range, and the product is obtained as a product by sending it downstream of the pulley manufacturing process. It is possible to improve the quality of the pulley to be used.

JP 2002-160029 A

  As a quality inspection process for effectively improving the pulley quality, it is possible to determine whether or not the processing accuracy of the ball spline groove belongs to the set range. In this quality inspection process, when a load is applied to the movable sheave, the plate surface direction is inclined from an axis orthogonal direction orthogonal to the axial direction of the shaft, in other words, a ball spline in which rolling elements are accommodated. Inspect for play in the groove and shaft.

  In order to efficiently manufacture the pulley while performing such a quality inspection process, it is preferable to perform the quality inspection process on the main line in the line production system. Therefore, it is necessary to reduce the time required for measurement as much as possible so that the above-described inclination range can be measured in synchronization with the progress of the main line.

  However, a tilt range measuring apparatus and a measuring method thereof that can efficiently measure the tilt range in a short time have not been known so far.

  The present invention solves this type of problem, and is capable of efficiently measuring in a short time an inclination range in which the plate surface direction is inclined from the axis orthogonal direction when a load is applied to the plate member of the assembly. An object of the present invention is to provide a range measuring apparatus and a measuring method thereof.

  In order to achieve the above object, the present invention is an assembly in which a hollow portion of a plate member is inserted through one end side of a shaft portion of a shaft member, and the plate member is rotatable together with the shaft member. An inclination range measuring device for applying a load to the plate member and measuring an inclination range in which a plate surface direction orthogonal to the extending direction of the hollow portion is inclined from an axis orthogonal direction orthogonal to the axial direction of the shaft portion And a rotating means for rotating the assembly about the axis of the shaft portion as a rotation center, and a reference position side set in the rotating direction of the plate member among the plate surface directions as the load. A first load for displacing the plate surface of the plate member so as to incline toward the one side in the axial direction from the axis orthogonal direction, and a second load for displacing the plate surface to incline toward the other side. A load applying hand for selectively applying a load to the plate member The first displacement amount of the plate surface when the first load is applied to the plate member is continuously measured at the reference position for each of a plurality of measurement rotation angles without stopping the rotation of the plate member. Measuring means for measuring and measuring the second displacement amount of the plate surface when the second load is applied continuously at the reference position for each measurement rotation angle without stopping the rotation of the plate member And calculating means for calculating the tilt range from the first displacement amount and the second displacement amount measured at the measurement rotation angles corresponding to each other.

  In this tilt range measuring device (hereinafter also simply referred to as a measuring device), the rotating means rotates the assembly about the shaft center of the shaft portion. At this time, the reference position is set in the rotation direction of the plate member. Then, the first load or the second load is selectively applied to the plate member by the load applying means so that the reference position side in the plate surface direction is inclined from the direction perpendicular to the axis toward one side or the other side in the axial direction. To do. In addition, by the measurement means, for each of a plurality of measurement rotation angles of the plate surface, in other words, at a predetermined measurement cycle with respect to the rotating plate surface, the first displacement amount and the second displacement amount (hereinafter collectively referred to as reference positions). (Also called displacement). In other words, the measurement rotation angle is set so that the timing at which the measurement point where the displacement is to be measured passes the reference position on the rotating plate surface coincides with the timing at which the measurement means measures the displacement at the reference position. Is done.

  Therefore, in this measurement apparatus, for example, first, the first displacement amount for each measurement rotation angle is continuously measured without stopping the rotation of the plate member inclined by applying the first load. Next, the second displacement amount for each measurement rotation angle is continuously measured without stopping the rotation of the plate member inclined by applying the second load instead of the first load. Thus, by measuring each of the first displacement amount and the second displacement amount for each measurement rotation angle corresponding to each other, the second displacement amount is measured at a location where the first displacement amount of the plate surface is measured. be able to.

  As a result, the inclination range can be calculated by the calculation means from the corresponding measurement rotation angles, that is, the first displacement amount and the second displacement amount measured at the same location on the plate surface. That is, by adding the absolute values of the first displacement amount and the second displacement amount corresponding to each other, an inclination range in which the plate surface direction is inclined from the axis orthogonal direction toward both sides in the axial direction can be obtained.

  For example, when the axial direction is set along the vertical direction and the axis orthogonal direction is set along the horizontal direction, the plate surface is displaced toward the vertical side in the vertical direction. If the displacement amount at which the reference position side of the plate surface is displaced upward in the vertical direction is expressed as “+” as the first displacement amount and the lower displacement amount is expressed as “−” as the second displacement amount, the first displacement amount If the second displacement amount is subtracted from the inclination range, the inclination range can be obtained. By setting the axial direction along the horizontal direction and the axis orthogonal direction along the vertical direction, the inclination range can be obtained in the same manner as described above even when the plate surface is displaced to the left and right in the horizontal direction. Can do.

  From the above, in this measuring apparatus, it is not necessary to stop the rotation of the plate member for each measurement rotation angle when measuring each of the first displacement amount and the second displacement amount in order to calculate the tilt range. Therefore, for example, the time required for the measurement is shorter than that of a measuring device that measures the inclination range by stopping the rotation of the plate member and applying the first load and the second load for each measurement rotation angle. It can be shortened effectively. That is, the tilt range can be measured efficiently in a short time. As a result, the above tilt range can be measured in synchronization with the progress of the main line when the assembly is manufactured by the line production method. It is possible to improve the manufacturing efficiency of the solid.

  In the above-described tilt range measuring apparatus, it is preferable that the load applying unit applies at least one of the first load and the second load to the plate member at the reference position. In this case, since the direction of the plate surface can be effectively inclined by the load applying means, the inclination range can be measured with higher accuracy.

  In the measuring apparatus of the above inclination range, in the load applying means, the first applying point for applying the first load to the plate member and the second applying point for applying the second load are the axis. It is preferable that either one of the first grant point and the second grant point is disposed on the reference position.

  In this case, what is necessary is just to provide both a 1st provision point and a 2nd provision point with respect to one board surface among the board surfaces of the front and back of a board member. For this reason, it is possible to incline the plate surface direction by applying a load to the plate member without bringing the load applying means into contact with the other plate surface. Therefore, in this measuring apparatus, it is possible to measure the tilt range without reducing the processing accuracy or the like of the other plate surface.

  In addition, as described above, since either one of the first grant point and the second grant point arranged so as to face each other via the axis is arranged on the reference position, the reference position side in the plate surface direction is It is possible to incline effectively and easily from the direction perpendicular to the axis toward one side and the other side in the axial direction. As a result, the tilt range can be measured with higher accuracy.

  In the measuring apparatus of the above-described inclination range, it is preferable that the axial direction is along the vertical direction and the orthogonal direction is along the horizontal direction. In this case, when rotating the assembly or tilting the plate surface direction, it is possible to suppress the occurrence of bias in the measurement result due to the influence of gravity or the like, so that the tilt range can be measured more accurately and easily. Is possible.

  In the measuring apparatus of the above-mentioned inclination range, it further includes a correction assembly in which the plate member and the shaft portion are fixed in a state where the plate surface direction and the axis orthogonal direction coincide with each other. The first displacement amount and the second displacement amount measured by the measurement means for the correction assembly are set as zero point correction values, and the first displacement amount and the second displacement measured by the measurement means for the assembly are used. It is preferable to calculate the tilt range by correcting the measured value of the displacement amount with the zero point correction value.

  In this case, before measuring the tilt range of the assembly by the measuring device, the tilt range of the correction assembly is measured in advance. In this correction assembly, as described above, the plate member and the shaft portion are fixed so that the first displacement amount and the second displacement amount (inclination range) become zero. Accordingly, when a measurement value other than zero is obtained when the displacement amount is measured for the correction assembly, the measurement value can be used as a zero point correction value. In other words, since the zero point correction value can be determined as the inclination of the measuring device itself, the measured value of the displacement amount of the assembly is corrected using the zero point correction value, so that the inclination range can be determined with higher accuracy. Can be measured.

  In the above-described tilt range measuring apparatus, it is preferable that the shaft assembly and the plate member are integrally formed in the correction assembly. In this case, the state in which the plate surface direction and the axis orthogonal direction of the correction assembly coincide with each other can be maintained satisfactorily and easily, so that a more reliable zero point correction value can be obtained and tilting can be performed with higher accuracy. It becomes possible to measure the range.

  In the above-described tilt range measuring apparatus, the calculation means measures the first displacement amount and the second displacement amount as n, and is measured i-th of the measurements for each measurement rotation angle. When the first displacement amount is Ri and the second displacement amount is Li, the inclination range is preferably calculated by the following equation (1).

  In this measuring device, as described above, the plate surface is provided with measurement points where the amount of displacement is to be measured for each measurement rotation angle, and these measurement points pass through the reference position in accordance with the rotation of the plate surface. The first displacement amount and the second displacement amount are measured. That is, the i-th measured first displacement amount Ri and the i-th measured second displacement amount Li correspond to each other and are measured values at the same location on the plate surface. Therefore, as shown in the equation (1), using the first displacement amount Ri and the second displacement amount Li and the number of measurements (number of measurement points) n, the average value (additive) of all the measurement points on the plate surface. (Average value) is calculated. By setting this average value as the inclination range, the accuracy of the inclination range can be effectively increased.

  In the above-described tilt range measuring apparatus, the assembly is a pulley constituting a continuously variable transmission, and the plate member is a movable sheave having a disk-shaped plate portion in which the hollow portion is formed substantially at the center. And the shaft member includes a shaft, one end of which is inserted into the hollow portion as the shaft, and a disk-shaped fixed sheave fixed to the other end of the shaft, and the outer peripheral wall of the shaft and the shaft Each of the inner peripheral walls of the hollow portion is formed with a plurality of ball spline grooves along the axial direction at predetermined intervals in the rotational direction so that the rolling elements can be accommodated so as to roll between each other. The measuring means measures the first displacement amount and the second displacement amount when at least the position where the ball spline groove is formed in the rotating movable sheave is at the reference position. rotation It is preferable to set the.

  In this case, it is possible to easily and accurately determine whether or not the processing accuracy of the ball spline groove belongs to the set range by measuring the above inclination range. In addition, as described above, since the tilt range can be measured efficiently in a short time, the above tilt range is measured in synchronization with the progress of the main line when the pulley is manufactured by the line production method. Can do. As a result, it is possible to improve the manufacturing efficiency satisfactorily while effectively improving the quality of the pulley.

  Note that a measuring method applied to the above-described tilt range measuring apparatus is also included in the present invention.

  That is, the present invention is configured by inserting one end side of the shaft portion of the shaft member into the hollow portion of the plate member, and applying a load to the plate member of the assembly in which the plate member is rotatable together with the shaft member. A tilt range measuring method for measuring a tilt range in which a plate surface direction perpendicular to the extending direction of the hollow portion is tilted from an axis orthogonal direction perpendicular to the axial direction of the shaft portion; A rotation step of rotating the shaft center about the axis of the shaft portion, and applying a first load as the load to the rotating plate member, and among the plate surface directions, during the rotation direction of the plate member A first load application step of displacing the plate surface of the plate member so that the set reference position side is inclined from the axis orthogonal direction toward one side of the axis direction, and when the first load is applied The first displacement amount of the plate surface is set to stop the rotation of the plate member. A first measurement step of continuously measuring at the reference position for each of a plurality of measurement rotation angles without applying a second load instead of the first load as the load to the plate member, A second load applying step of displacing the plate surface so that the reference position side of the direction is inclined from the axis orthogonal direction toward the other side of the axial direction, and the plate surface when the second load is applied A second measurement step of continuously measuring the second displacement amount at the reference position for each measurement rotation angle without stopping the rotation of the plate member, and the measurement at the measurement rotation angles corresponding to each other. And a calculation step of calculating the tilt range from the first displacement amount and the second displacement amount.

  In this measuring method of the tilt range, when each of the first displacement amount and the second displacement amount is measured, it is not necessary to stop the rotation of the plate member for each measurement rotation angle, so that the time required for the measurement is effectively reduced. It can be shortened. That is, the tilt range can be measured efficiently in a short time. As a result, the above tilt range can be measured in synchronization with the progress of the main line when the assembly is manufactured by the line production method. It is possible to improve the manufacturing efficiency of the solid.

  In the measuring method of the inclination range, at least one of the first load application step and the second load application step preferably applies the load at the reference position to the plate member. In this case, since the load can be effectively applied and tilted, the tilt range can be measured with higher accuracy.

  In the measuring method of the inclination range, in the first load application step, a first application point for applying the first load to the plate member, and in the second load application step, the plate member The second application point for applying the second load is opposed to each other via the axis, and one of the first application point and the second application point is arranged on the reference position. preferable.

  In this case, it is only necessary to provide both the first grant point and the second grant point with respect to one of the plate surfaces of the front and back surfaces of the plate member, and the plate member without contacting the other plate surface. A load can be applied to the plate to incline the plate surface direction. Therefore, it is possible to measure the tilt range without reducing the processing accuracy or the like of the other plate surface. In addition, as described above, since either one of the first grant point and the second grant point arranged so as to face each other via the axis is arranged on the reference position, the reference position side in the plate surface direction is It can be tilted effectively and easily. As a result, the tilt range can be measured with higher accuracy.

  In the measuring method of the tilt range, the correction assembly in which the plate member and the shaft portion are fixed in a state where the plate surface direction and the axis orthogonal direction coincide with each other before the rotation step. The method further includes a correction value measuring step of measuring one displacement amount and the second displacement amount to obtain a zero point correction value, and in the calculation step, measuring the first displacement amount and the second displacement amount of the assembly. It is preferable to calculate the inclination range by correcting the value by the zero point correction value.

  In this correction assembly, when a measurement value other than zero is obtained when the displacement amount is measured for the correction assembly, the measurement value can be set as a zero point correction value. By using this zero point correction value to correct the displacement measured for the assembly, the tilt range can be measured with higher accuracy.

  In the measurement method of the tilt range, in the calculation step, the number of measurements of the first displacement amount and the second displacement amount is n, and the measurement is performed i-th of the measurements for each measurement rotation angle. When the first displacement amount is Ri and the second displacement amount is Li, the inclination range is preferably calculated by the following equation (1).

  As shown in Equation (1), the average value of all the measurement points on the plate surface using the first displacement amount Ri and the second displacement amount Li, which are measurement values for the same portion of the plate surface, and the measurement number n. (Arithmetic mean value) is calculated. By setting this average value as the inclination range, the accuracy of the inclination range can be effectively increased.

  In the above-described method for measuring an inclination range, the assembly is a pulley constituting a continuously variable transmission, and the plate member is a movable sheave having a disk-shaped plate portion in which the hollow portion is formed substantially at the center. And the shaft member includes a shaft, one end of which is inserted into the hollow portion as the shaft, and a disk-shaped fixed sheave fixed to the other end of the shaft, and the outer peripheral wall of the shaft and the shaft Each of the inner peripheral walls of the hollow portion is formed with a plurality of ball spline grooves along the axial direction at predetermined intervals in the rotational direction so that the rolling elements can be accommodated so as to roll between each other. In the first measurement step and the second measurement step, when the position where the ball spline groove is formed in the rotating movable sheave is at the reference position, the first displacement amount and the second displacement amount are set. Measure each It is preferable to set the measurement angle of rotation to.

  In this case, it is possible to easily and accurately determine whether or not the processing accuracy of the ball spline groove belongs to the set range by measuring the above inclination range. In addition, as described above, since the tilt range can be measured efficiently in a short time, the above tilt range is measured in synchronization with the progress of the main line when the pulley is manufactured by the line production method. Can do. As a result, it is possible to improve the manufacturing efficiency satisfactorily while effectively improving the quality of the pulley.

  ADVANTAGE OF THE INVENTION According to this invention, when the load is provided to the board member of an assembly, the inclination range where a board surface direction inclines from an axis orthogonal direction can be measured efficiently in a short time. As a result, it is possible to efficiently manufacture an assembly that is effectively improved in quality.

It is a fragmentary longitudinal cross-sectional view which shows schematic structure of a pulley. FIG. 2 is a cross-sectional view taken along the line II-II of the pulley illustrated in FIG. 1. It is a schematic front view of the measuring device of the inclination range concerning this embodiment. It is a schematic side view of the measuring apparatus shown in FIG. It is a schematic explanatory drawing which shows the state which hold | gripped the pulley with the keley of the measuring apparatus shown in FIG. It is a schematic explanatory drawing which shows the state which provided the 1st load to the pulley by the load provision means of the measuring apparatus shown in FIG. It is a schematic explanatory drawing which shows the state which provided the 2nd load to the pulley by the load provision means of the measuring apparatus shown in FIG. It is a schematic explanatory drawing explaining the inclination range of the pulley measured with the measuring apparatus shown in FIG. It is the elements on larger scale of the movable sheave shown in FIG.

  DESCRIPTION OF THE PREFERRED EMBODIMENTS Preferred embodiments of an apparatus for measuring an inclination range (hereinafter also simply referred to as a measuring apparatus) and a measuring method thereof according to the present invention will be described below in detail with reference to the accompanying drawings.

  The measuring apparatus according to the present invention measures an inclination range of an assembly configured by inserting one end side of a shaft portion of a shaft member into a hollow portion of a plate member. Here, the inclination range is a range in which the plate surface direction orthogonal to the extending direction of the hollow portion is inclined from the axis orthogonal direction orthogonal to the axial direction of the shaft portion when a load is applied to the plate member of the assembly. It is. That is, the inclination range can be obtained from the amount of displacement in the axial direction of the plate surface that is displaced by the load.

  This measuring apparatus can be suitably applied when the assembly is, for example, a pulley on the driving side or driven side of a belt type continuously variable transmission mechanism (CVT). For this reason, in this embodiment, an example in which the pulley is an assembly, that is, an example in which the movable sheave is a plate member and the shaft member is configured by a shaft (shaft portion) and a fixed sheave will be described. However, the assembly is not limited to pulleys. That is, in the measuring apparatus according to the present invention, if the assembly is such that the plate surface direction is inclined from the axis orthogonal direction by the load, the inclination range can be measured in the same manner as the pulley regardless of the configuration, application, material, and the like. it can.

  First, the configuration of the pulley 10 will be specifically described with reference to FIGS. 1 and 2. The pulley 10 is an assembly of a movable sheave 14 having a disk-shaped plate portion 12 and a shaft member 18 having a shaft 16 as a shaft portion. The movable sheave 14 is provided with a hollow portion 20 substantially at the center of the plate portion 12, and one end side of the shaft 16 is inserted into the hollow portion 20. The shaft member 18 includes a shaft 16 and a disk-shaped fixed sheave 22 provided on the other end side of the shaft 16.

  That is, when the direction orthogonal to the extending direction Y1 of the hollow portion 20 is a plate surface direction X1, the plate surface direction X1 is substantially parallel to the axis orthogonal direction X2 orthogonal to the axial direction Y2 of the shaft 16. The pulley 10 is assembled. Thereby, in the pulley 10, a pulley groove is formed between the facing surface 14 a of the movable sheave 14 and the facing surface 22 a of the fixed sheave 22. The width of the pulley groove can be adjusted by moving the movable sheave 14 forward and backward toward the fixed sheave 22.

  Therefore, the movable sheave 14 can be slid along the axial direction Y2 by providing a hydraulic actuator (not shown) on the back surface 14b side of the facing surface 14a. The movable sheave 14 is fixed at a relative position in the rotational direction with respect to the shaft 16 so that the movable sheave 14 rotates in the same phase as the stationary sheave 22 as the shaft member 18 rotates.

  As described above, the movable sheave 14 can be slid in the axial direction Y2 with respect to the shaft 16 and the relative movement in the rotational direction is restricted, and the ball is applied to the outer peripheral wall 16a of the shaft 16 and the inner peripheral wall 20a of the hollow portion 20. A spline structure 24 is provided. That is, in each of the outer peripheral wall 16a and the inner peripheral wall 20a, the ball spline groove 28 along the axial direction Y2 is predetermined in the rotational direction so that the needle roller 26 is rotatably accommodated as a rolling element between them. A plurality are provided at intervals.

  In the present embodiment, as shown in FIG. 2, a case where three ball spline grooves 28 are provided at intervals of 120 ° will be described. However, the number of ball spline grooves 28 is particularly limited to this. It is not something. Further, the rolling element accommodated in the ball spline groove 28 is not limited to the needle roller 26 described above, and may be a ball (not shown) or the like. In the illustration of FIG. 1, the needle roller 26 is rotatably held in the ball spline groove 28 by rings 30a and 30b. As shown in FIG. 1, a plurality of spline grooves 32 are formed on one end side of the shaft 16.

  In order to improve the quality of the pulley 10 configured as described above, it is important that the processing accuracy of the ball spline groove 28 is good. For this reason, in the measuring apparatus 34 according to the present embodiment shown in FIGS. 3 and 4, when a load is applied to the movable sheave 14, an inclination range in which the plate surface direction X <b> 1 is inclined from the axis orthogonal direction X <b> 2 is measured. By selecting the measured value, that is, the ball spline groove 28 in which the needle roller 26 is accommodated and the shakiness of the shaft 16 belonging to an appropriate setting range, the pulley 10 having excellent quality can be obtained. Is possible.

  FIG. 3 is a schematic front view of the measuring device 34, and FIG. 4 is a schematic side view of the measuring device 34. For convenience, in FIG. 3, the drive mechanism 38 for moving the rotating means 36 along the vertical direction is not shown. Further, in FIG. 4, illustration of the load applying means 40 is omitted.

  The measuring device 34 mainly includes a rotating unit 36, a load applying unit 40, a measuring unit 42, and a calculating unit (not shown), and further supports and drives these components appropriately to adjust the inclination range. A configuration necessary for performing the measurement is appropriately provided. For example, the measuring device 34 includes a drive mechanism 38 that moves the rotating means 36 along the vertical direction, a support base 44 that rotatably supports the pulley 10, a transport mechanism 46 that transports the support base 44, and a rotation. A stand 48 for supporting the means 36 and the measuring means 42 is further provided. The pulley 10 is mounted on the support base 44 such that the axial direction Y2 is along the vertical direction and the axial orthogonal direction X2 is along the horizontal direction.

  The rotating means 36 includes a motor 50, an encoder 52, a conduction belt 54, twin rollers 56 a and 56 b, and a keley 58, and these components are fixed to the moving table 60. The moving table 60 is fixed to the tip of the rod 64 of the cylinder 62 constituting the drive mechanism 38, and the rod 64 expands and contracts, so that the moving table 60 can move in the vertical direction along the guide rail 66 laid on the gantry 48. ing. The cylinder 62 is fixed to the fixed base 68 so as to be disposed below the moving table 60.

  The twin roller 56a is a drive roller that is directly rotated by the motor 50, and the twin roller 56b is a driven roller that is rotated via the conductive belt 54 as the twin roller 56a rotates. The rotation direction and rotation speed of these twin rollers 56 a and 56 b can be freely switched by operating the motor 50. Further, a keley 58 is supported on the twin roller 56b, and the keley 58 can be rotated by rotating the motor 50. At this time, the rotation speed of the twin roller 56b is detected by the encoder 52. Since the rotation angle of the keley 58 can be determined from the detected rotation speed, the keley 58 is rotated to a predetermined angle. be able to.

  The keley 58 grips the shaft 16 of the pulley 10, and has a stopper 70 and three gripping claws 72 provided at equal intervals in the circumferential direction surrounding the stopper 70. The shaft 16 can be gripped by bringing the end face of the one end side of the shaft 16 into contact with the stopper 70 and moving the gripping claws 72 so as to be inserted into the spline grooves 32.

  That is, in the rotating means 36, as described above, the pulley 10 can be rotated with the axis O of the shaft 16 as the rotation center (see FIG. 2) by rotating the keley 58 in a state where the shaft 16 is gripped. When the pulley 10 is rotated in this way, the reference position P is set in the rotational direction C of the movable sheave 14 as shown in FIG.

  The load applying unit 40 applies a first load applying unit 40 a that applies a first load to the plate portion 12 of the movable sheave 14 among the pulleys 10 arranged on the support base 44, and applies a second load. Second load applying means 40b.

  The first load applying means 40a applies the first load to the plate portion 12 so that the reference position P side in the plate surface direction X1 is directed from the axis orthogonal direction X2 to one side in the axial direction Y2 (upper side in the vertical direction). The opposing surface 14a is displaced so as to be inclined. Specifically, the first load applying means 40a includes a load member 76a and a drive mechanism 78a.

  As shown in FIGS. 2 and 3, the load member 76 a contacts the first application point Q <b> 1 that faces the reference position P via the rotation center (axial center O) on the back surface 14 b of the movable sheave 14. It has a possible contact portion 80a. The drive mechanism 78a has a cylinder 82a and a rod 84a, and a load member 76a is fixed to the tip of the rod 84a. Therefore, by extending and contracting the rod 84a, the load member 76a can be moved along the vertical direction so that the contact portion 80a contacts or separates from the first provision point Q1.

  That is, the drive member 78a moves the load member 76a upward in the vertical direction until the first application point Q1 and the contact portion 80a are separated from each other, so that the first load is not applied to the plate portion 12. Can do. On the other hand, by moving the load member 76a downward in the vertical direction by the drive mechanism 78a, the first load can be applied to the plate portion 12 via the contact portion 80a that contacts the first application point Q1. .

  The second load applying means 40b is such that the reference position P side in the plate surface direction X1 is inclined with respect to the plate portion 12 from the axis orthogonal direction X2 toward the other side in the axial direction Y2 (downward in the vertical direction). Then, a second load for displacing the facing surface 14a is applied. The second load applying unit 40b is configured in substantially the same manner as the first load applying unit 40a, and includes a load member 76b and a drive mechanism 78b.

  The load member 76b has a contact portion 80b that can contact the second application point Q2 that coincides with the reference position P on the back surface 14b of the movable sheave 14. The drive mechanism 78b moves the load member 76b along the vertical direction by the cylinder 82b and the rod 84b so that the contact portion 80b contacts or separates from the second provision point Q2.

  Accordingly, the load applying means 40 selectively presses the corresponding one of the contact portions 80a and 80b against one of the first application point Q1 and the second application point Q2, thereby pressing the plate portion 12. The first load or the second load can be selectively applied. Each of the first load applying means 40a and the second load applying means 40b is a fixed base such that the load members 76a and 76b are disposed above the plate portion 12 of the pulley 10 disposed on the support base 44. It is being fixed to 74a, 74b.

  The measuring means 42 is a so-called contact-type displacement sensor having a measuring terminal 86 that comes into contact with a measuring point that coincides with the reference position P on the opposed surface 14 a of the movable sheave 14 in the pulley 10 disposed on the support base 44. is there. Thereby, the amount of displacement of the facing surface 14a at the reference position P can be measured.

  That is, the measuring means 42 applies the first load from a state in which no load is applied to the plate portion 12, thereby measuring the amount of displacement of the reference position P of the facing surface 14 a as the first amount of displacement. . Similarly, the displacement amount when the second load is applied is measured as the second displacement amount. In this measuring means 42, the horizontal direction is set as a reference (zero), and the amount of displacement of the facing surface 14a that is displaced upward in the vertical direction from the horizontal direction is measured as a first displacement amount with a value of “+”. The displacement amount is measured as a second displacement amount with a value of “−”.

  At this time, the measurement means 42 continuously measures the first displacement amount a plurality of times at a predetermined cycle with respect to the facing surface 14a of the movable sheave 14 rotating in a state where the first load is applied. In addition, the second displacement amount is measured at the same period and number of times as the measurement of the first displacement amount with respect to the facing surface 14a of the movable sheave 14 that rotates with the second load applied instead of the first load. Do it continuously. Thereby, a plurality of first displacement amounts and second displacement amounts are measured for each of a plurality of measurement rotation angles corresponding to each other of the rotating facing surface 14a.

  This measurement rotation angle can be set by adjusting the rotation speed of the facing surface 14a and the measurement period of the measurement means 42. For example, as shown by a one-dot chain line in FIG. 2, when the measurement rotation angle is set, 30 °, 60 °, 90 °, 120 °, 150 ° while the opposing surface 14a makes one rotation with reference to the reference position P. , 180 °, 210 °, 240 °, 270 °, 330 °, and 360 °, the first displacement amount and the second displacement amount can be measured at locations corresponding to the respective measurement rotation angles. At this time, the measurement rotation angle is set so that the first displacement amount and the second displacement amount are measured at a position on the line segment passing through the ball spline groove 28 and the rotation center (axis O) in the facing surface 14a. By setting, the dimensional accuracy of the ball spline groove 28 can be measured more effectively.

  The computing means calculates the tilt range from the first displacement amount and the second displacement amount measured at the corresponding measurement rotation angles based on the measurement result of the measuring means 42. That is, by adding the absolute values of the first displacement amount and the second displacement amount measured at the same location on the facing surface 14a, the plate surface direction X1 is changed from the axis orthogonal direction X2 to the one side and the other side of the axis direction Y2. An inclination range that inclines toward is calculated.

  Specifically, in the calculation means, the number of measurement of each of the first displacement amount and the second displacement amount is n, and the first displacement amount measured i-th among the measurements for each measurement rotation angle is Ri, the first displacement amount. 2 When the amount of displacement is Li, the tilt range is calculated by the following equation (1).

  That is, the i-th measured first displacement amount Ri and the i-th measured second displacement amount Li correspond to each other and are measured values at the same location on the facing surface 14a. Therefore, as shown in the equation (1), the average value of all the measurement points on the facing surface 14a is calculated using the first displacement amount Ri and the second displacement amount Li and the measurement number n, and the average value is inclined. By setting the range, the accuracy of the tilt range can be effectively increased.

  The transport mechanism 46 includes a cylinder 90 having a rod 88 whose tip is fixed to the support base 44, and the support base 44 can be moved along the guide rail 92 by extending and contracting the rod 88. Accordingly, a release position where the pulley 10 can be placed or removed with respect to the support base 44 and a set position where the inclination range of the pulley 10 placed on the support base 44 can be measured. The support base 44 can be moved between them.

  A measurement method for measuring the inclination range of the pulley 10 using the measurement device 34 basically configured as described above will be described.

  First, the support base 44 is moved to the release position by the transport mechanism 46. After the pulley 10 to be measured in the tilt range is placed on the support base 44, the support base 44 is moved to the set position by the transport mechanism 46. At this time, the moving table 60 is moved upward in the vertical direction by the drive mechanism 38 so that the keley 58 and the like of the rotating means 36 do not interfere with the pulley 10 on the support base 44.

  Next, the moving table 60 is moved downward in the vertical direction by the drive mechanism 38, and the end surface on one end side of the shaft 16 is brought into contact with the stopper 70 of the kelay 58. In this state, each of the gripping claws 72 is moved so as to be inserted into the spline groove 32, whereby the shaft 16 is gripped by the keret 58 as shown in FIG.

  Next, by rotating the motor 50, a rotation process is performed in which the pulley 10 is rotated in the rotation direction C (see FIG. 2) about the axis O of the shaft 16 through the keley 58.

  Next, as shown in FIG. 6, the load member 76a is moved by the drive mechanism 78a so that the contact portion 80a is brought into contact with and pressed against the first application point Q1 on the back surface 14b of the movable sheave 14. At this time, the contact portion 80b is not brought into contact with the second provision point Q2. That is, a first load applying step for applying only the first load to the plate portion 12 is performed.

  Thus, a first load is applied to the plate portion 12 of the rotating movable sheave 14, and the reference position P side of the plate surface direction X1 is directed from the axis orthogonal direction X2 to one side (in this case, the upper side) of the axis direction Y2. The opposing surface 14a is displaced so as to be inclined.

  Next, the first displacement amount of the facing surface 14a displaced by applying the first load is continuously measured by the measurement unit 42 at a plurality of measurement rotation angles without stopping the rotation of the movable sheave 14. A 1st measurement process is performed.

  That is, the displacement amount by which the reference position P of the facing surface 14a is displaced by applying the first load from the state where no load is applied to the plate portion 12 is measured as the first displacement amount. At this time, as shown by the alternate long and short dash line in FIG. 2, by setting the measurement rotation angle, the counter surface 14 a rotates once with respect to the reference position P as a reference at 30 °, 60 °, 90 °, 120 °, First displacement amounts are measured for a total of twelve locations corresponding to respective measurement rotation angles of 150 °, 180 °, 210 °, 240 °, 270 °, 330 °, and 360 °. At this time, the first displacement amounts are measured in the order that these measurement points pass the reference position P with the rotation of the facing surface 14a. Therefore, the location corresponding to the measurement rotation angle 30 ° is the first measurement location, and the location corresponding to the measurement rotation angle 360 ° is the 12 (= n) th measurement location. Of these, the i-th measured first displacement is Ri.

  Next, as shown in FIG. 7, instead of the first load, a second load is applied to the plate portion 12, and the reference position P side in the plate surface direction X1 is changed from the axis orthogonal direction X2 to the other side in the axis direction Y2. A second load applying step is performed in which the facing surface 14a is displaced so as to be inclined. That is, the load member 76a is moved by the drive mechanism 78a so as to separate the contact portion 80a from the first provision point Q1. Moreover, the load member 76b is moved by the drive mechanism 78b so that the contact portion 80b is brought into contact with and pressed against the second provision point Q2. As a result, only the second load is applied to the plate portion 12.

  Next, the second displacement amount of the facing surface 14a displaced by applying the second load is continuously measured for each measurement rotation angle similar to the first measurement step without stopping the rotation of the movable sheave 14. In addition, a second measurement step is performed in which measurement is performed by the measuring means 42. That is, the displacement amount by which the reference position P of the facing surface 14a is displaced is measured as the second displacement amount by applying the second load from the state in which no load is applied to the plate portion 12. For this reason, also about the 2nd displacement amount, the measurement result for 12 (= n) places similar to the 1st displacement amount is obtained, and let the 2nd displacement amount measured ith be Li.

  Next, a calculation step of calculating an inclination range from the first displacement amount Ri and the second displacement amount Li measured at the corresponding measurement rotation angles is performed. As described above, each of the first displacement amount Ri and the second displacement amount Li is measured as a displacement amount in opposite directions (upper and lower sides in the vertical direction) with respect to the axis orthogonal direction X2 (horizontal direction). Therefore, they are obtained with different codes. Here, the upper side in the vertical direction with respect to the axis orthogonal direction X2 is defined as a positive direction (+), and the lower side is defined as a negative direction (-). Therefore, by subtracting the second displacement amount Li from the first displacement amount Ri corresponding to each other, in other words, by adding the absolute values of the first displacement amount Ri and the second displacement amount Li to each other, FIG. The slope range shown can be determined. That is, the inclination range here is a range in which the plate surface direction X1 is inclined from the axial orthogonal direction X2 toward both sides of the axial direction Y2.

  By the way, as shown in FIG. 9, for example, when the opposing surface 14a has insufficient molding accuracy and an excessive convex portion 94 is formed on the opposing surface 14a, the first displacement amount measured by the measuring means 42 is used. The absolute value of Ri is smaller by the height β of the convex portion 94 than the actual displacement Ra. On the other hand, the absolute value of the second displacement amount Li measured by the measuring means 42 is larger by β than the actual displacement amount La. For this reason, as described above, by calculating by the calculating means, β can be canceled out from the displacement amount, and the inclination range can be calculated with high accuracy.

  As described above, in the measurement device 34, it is not necessary to stop the rotation of the plate portion 12 for each measurement rotation angle when measuring each of the first displacement amount and the second displacement amount in order to calculate the tilt range. Therefore, for example, the time required for the measurement is shorter than that of a measuring device that measures the inclination range by stopping the rotation of the plate portion 12 at each measurement rotation angle and switching and applying the first load and the second load. It can be shortened effectively. That is, the tilt range can be measured efficiently in a short time. As a result, it becomes possible to measure the inclination range in synchronism with the progress of the main line when the pulley 10 is manufactured by the line production method. It becomes possible to improve the manufacturing efficiency of the.

  Moreover, in this measuring apparatus 34, as above-mentioned, the 1st provision point Q1 which provides a 1st load with respect to the board part 12 and the 2nd provision point Q2 which provides a 2nd load are via the shaft center O. The second provision points Q2 are arranged on the reference position P so as to face each other. In this case, since it is only necessary to provide both the first grant point Q1 and the second grant point Q2 on the back surface 14b of the movable sheave 14, the contact portions 80a and 80b do not need to be in contact with the opposing surface 14a. Therefore, it is possible to measure the tilt range without reducing the processing accuracy or the like of the facing surface 14a.

  Furthermore, as described above, the second grant point Q2, which is one of the first grant point Q1 and the second grant point Q2 that are arranged to face each other via the axis O, is arranged on the reference position P. Therefore, the reference position P side in the plate surface direction X1 can be effectively and easily inclined from the axis orthogonal direction X2 toward the one side and the other side in the axis direction Y2. As a result, the tilt range can be measured with higher accuracy.

  Furthermore, as described above, the pulley 10 can be placed on the support base 44 such that the axial direction Y2 is along the vertical direction and the axial orthogonal direction X2 is along the horizontal direction. As a result, when the pulley 10 is rotated or when the plate surface direction X1 is inclined, it is possible to prevent the measurement result from being biased due to the influence of gravity or the like, and the inclination range can be measured more accurately and easily. Is possible.

  In addition, this invention is not specifically limited to above-described embodiment, Of course, a various deformation | transformation is possible in the range which does not deviate from the summary.

  For example, in the above calculation means, when calculating the tilt range, correction may be performed to suppress a decrease in measurement accuracy due to the tilt of the measurement device 34 itself. In this case, the measuring device 34 further includes a correction assembly as a component for performing the above correction. The correction assembly is integrally formed so that the movable sheave 14 and the shaft 16 of the shaft member 18 are fixed in a state where the plate surface direction X1 and the axis orthogonal direction X2 coincide. Therefore, the correction assembly described above can be performed by using the first displacement amount and the second displacement amount measured in the same manner as the pulley 10 as a zero point correction value in the calculation.

  Specifically, before the rotation step, a correction value measurement step is performed in which the first displacement amount and the second displacement amount are measured for the correction assembly to obtain a zero point correction value. In the correction assembly, as described above, the movable sheave 14 and the shaft 16 are integrally formed so that the first displacement amount and the second displacement amount (inclination range) become zero. Accordingly, when a measurement value other than zero is obtained when the displacement amount is measured for the correction assembly, the measurement value can be used as a zero point correction value. That is, since the zero point correction value can be determined as the inclination of the measuring device 34 itself, the measured value of the displacement amount of the pulley 10 is corrected using the zero point correction value, so that the inclination can be made with higher accuracy. It becomes possible to measure the range

  In the above embodiment, the first grant point Q1 and the second grant point Q2 are arranged on the back surface 14b so as to face each other with the axis O interposed therebetween, but the present invention is not particularly limited thereto. For example, both the first grant point Q1 and the second grant point Q2 may be provided on the facing surface 14a. Moreover, while providing the 2nd provision point Q2 in the back surface 14b so that it may correspond with the reference position P similarly to said embodiment, about the 1st provision point Q1, it is on the opposing surface 14a so that it may correspond with the reference position P. It may be provided.

  Further, in the above-described embodiment, the second load application is performed by inclining the reference position P side in the plate surface direction X1 from the axis orthogonal direction X2 to the upper side in the vertical direction of the axis direction Y2 by the first load application means 40a. It was made to incline toward the lower side in the vertical direction by means 40b. However, the first load applying unit 40a may be inclined downward in the vertical direction, and the second load applying unit 40b may be inclined upward in the vertical direction.

DESCRIPTION OF SYMBOLS 10 ... Pulley 12 ... Plate part 14 ... Movable sheave 14a, 22a ... Opposing surface 14b ... Back 16 ... Shaft 16a ... Outer wall 18 ... Shaft member 20 ... Hollow part 20a ... Inner wall 22 ... Fixed sheave 24 ... Ball spline structure 26 ... Needle roller 28 ... ball spline grooves 30a, 30b ... ring 32 ... spline groove 34 ... measuring device 36 ... rotating means 38, 78a, 78b ... drive mechanism 40 ... load applying means 40a ... first load applying means 40b ... second load applying Means 42 ... Measuring means 44 ... Support base 46 ... Conveying mechanism 48 ... Stand 50 ... Motor 52 ... Encoder 54 ... Conduction belts 56a, 56b ... Twin rollers 58 ... Keley 60 ... Moving tables 62, 82a, 82b, 90 ... Cylinder 64, 84a, 84b, 88 ... Rod 66, 92 ... Guide rail 68, 74a, 74b Fixing base 70 ... stopper 72 ... gripping claws 76a, 76 b ... load member 80a, 80b ... contact portion 86 ... measurement terminals 94 ... protrusion O ... center axis P ... reference position Q1 ... first grant point Q2 ... second grant point

Claims (14)

The hollow portion of the plate member is configured by inserting one end side of the shaft portion of the shaft member, the plate member being able to rotate with the shaft member, and applying a load to the plate member of the assembly. An inclination range measuring device for measuring an inclination range in which a plate surface direction orthogonal to the extending direction of the optical axis is inclined from an axis orthogonal direction orthogonal to the axial direction of the shaft portion,
Rotating means for rotating the assembly about the axis of the shaft portion as a rotation center;
The plate surface of the plate member as the load is such that, of the plate surface direction, a reference position side set during the rotation direction of the plate member is inclined from the axis orthogonal direction toward one side of the axial direction. A load applying means for selectively applying to the plate member a first load for displacing the plate and a second load for displacing the plate surface so as to be inclined toward the other side;
The first displacement amount of the plate surface when the first load is applied to the plate member is continuously measured at the reference position at a plurality of measurement rotation angles without stopping the rotation of the plate member. Measuring means for continuously measuring the second displacement amount of the plate surface when the second load is applied at the reference position for each measurement rotation angle without stopping the rotation of the plate member;
Computing means for calculating the tilt range from the first displacement amount and the second displacement amount measured at the measurement rotation angles corresponding to each other;
An inclination range measuring apparatus comprising: In the measuring apparatus of the inclination range of Claim 1,
The apparatus for measuring an inclination range, wherein the load applying unit applies at least one of the first load and the second load to the plate member at the reference position. In the inclination range measuring device according to claim 1 or 2,
In the load application means, a first application point for applying the first load to the plate member and a second application point for applying a second load are opposed to each other via the axis, and Any one of the 1st grant point and the 2nd grant point is arranged on the standard position, The measuring device of the inclination range characterized by things. In the measuring device of the inclination range given in any 1 paragraph of Claims 1-3,
The measuring device for an inclination range, wherein the axial direction is along a vertical direction and the orthogonal direction is along a horizontal direction. In the measuring apparatus of the inclination range of any one of Claims 1-4,
A correction assembly in which the plate member and the shaft portion are fixed in a state where the plate surface direction and the axis orthogonal direction coincide with each other;
In the calculation means, the first displacement amount and the second displacement amount measured by the measurement means for the correction assembly are set as zero point correction values, and the assembly is measured by the measurement means. An apparatus for measuring a tilt range, wherein the tilt range is calculated by correcting measured values of a displacement amount and the second displacement amount with the zero point correction value. In the inclination range measuring device according to claim 5,
In the tilting range measuring apparatus, the correction assembly is formed by integrally forming the shaft member and the plate member. In the measuring apparatus of the inclination range of any one of Claims 1-6,
In the calculation means, the number of measurements of the first displacement amount and the second displacement amount is n, and the first displacement amount measured i-th of the measurements for each measurement rotation angle is Ri, When the second displacement amount is Li, the tilt range is calculated by the following formula (1).

In the measuring apparatus of the inclination range of any one of Claims 1-7,
The assembly is a pulley constituting a continuously variable transmission,
The plate member is a movable sheave having a disk-shaped plate portion in which the hollow portion is formed substantially at the center,
The shaft member includes a shaft having one end side inserted through the hollow portion as the shaft portion, and a disk-shaped fixed sheave fixed to the other end side of the shaft,
Each of the outer peripheral wall of the shaft and the inner peripheral wall of the hollow portion has ball spline grooves along the axial direction at predetermined intervals in the rotational direction so that the rolling elements are accommodated so as to roll between each other. Multiple formations,
The measuring means measures the first displacement amount and the second displacement amount when at least the position where the ball spline groove is formed in the rotating movable sheave is at the reference position. An apparatus for measuring an inclination range, characterized by setting a rotation angle. The hollow portion of the plate member is configured by inserting one end side of the shaft portion of the shaft member, the plate member being able to rotate with the shaft member, and applying a load to the plate member of the assembly. The plate surface direction perpendicular to the extending direction of the slope is a method of measuring an inclination range for measuring an inclination range inclined from an axis orthogonal direction orthogonal to the axial direction of the shaft portion,
A rotation step of rotating the assembly about the axis of the shaft portion as a rotation center;
A first load is applied as the load to the rotating plate member, and the reference position side set in the rotation direction of the plate member in the plate surface direction is one side of the axial direction from the axis orthogonal direction. A first load applying step of displacing the plate surface of the plate member so as to incline toward
A first measurement step of continuously measuring the first displacement amount of the plate surface when the first load is applied at a plurality of measurement rotation angles at the reference position without stopping the rotation of the plate member; ,
A second load is applied to the plate member in place of the first load as the load so that the reference position side in the plate surface direction is inclined from the axis orthogonal direction toward the other side of the axis direction. A second load applying step for displacing the plate surface;
A second measurement step of continuously measuring the second displacement amount of the plate surface when the second load is applied at the reference position for each measurement rotation angle without stopping the rotation of the plate member;
A calculation step of calculating the tilt range from the first displacement amount and the second displacement amount measured at the measurement rotation angles corresponding to each other;
An inclination range measuring method characterized by comprising: The method of measuring a tilt range according to claim 9,
In at least one of the first load applying step and the second load applying step, the load is applied to the plate member at the reference position. In the measuring method of the inclination range according to claim 9 or 10,
A first application point for applying the first load to the plate member in the first load application step, and a second application unit for applying the second load to the plate member in the second load application step. A given point is a measuring method of an inclination range, wherein the given point is opposed to each other via the axis, and one of the first given point and the second given point is arranged on the reference position. In the measuring method of the inclination range of any one of Claims 9-11,
Before the rotation step, the first displacement amount and the second displacement amount of the correction assembly in which the plate member and the shaft portion are fixed in a state where the plate surface direction and the axis orthogonal direction coincide with each other. And a correction value measurement step of obtaining a zero point correction value by measuring
In the calculation step, the tilt range is calculated by correcting the measured values of the first displacement amount and the second displacement amount of the assembly by the zero point correction value. In the measuring method of the inclination range of any one of Claims 9-12,
In the calculation step, each measurement number of the first displacement amount and the second displacement amount is n, and the first displacement amount measured i-th among the measurements for each measurement rotation angle is Ri, When the second displacement amount is Li, the tilt range is calculated by the following formula (1).

In the measuring method of the inclination range of any one of Claims 9-13,
The assembly is a pulley constituting a continuously variable transmission,
The plate member is a movable sheave having a disk-shaped plate portion in which the hollow portion is formed substantially at the center,
The shaft member includes a shaft having one end side inserted through the hollow portion as the shaft portion, and a disk-shaped fixed sheave fixed to the other end side of the shaft,
Each of the outer peripheral wall of the shaft and the inner peripheral wall of the hollow portion has ball spline grooves along the axial direction at predetermined intervals in the rotational direction so that the rolling elements are accommodated so as to roll between each other. Multiple formations,
In the first measurement step and the second measurement step, when the position where the ball spline groove is formed in the rotating movable sheave is at the reference position, the first displacement amount and the second displacement amount are set. A method of measuring an inclination range, wherein the measurement rotation angle is set so as to measure each of them.

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