JP5882098B2 - Rolling bearing device manufacturing apparatus and rolling bearing device manufacturing method - Google Patents

Description

  The present invention relates to a method for manufacturing a rolling bearing device.

  Conventionally, a manufacturing method for manufacturing a rolling bearing device used in a magnetic recording device (HDD) or the like is known (see, for example, Patent Document 1 and Patent Document 2). In the manufacturing method of a rolling bearing device described in Patent Document 1, an anaerobic adhesive is applied between an inner ring and a shaft (rotating shaft), the shaft is fitted to the inner ring, and a constant load is applied to the inner ring by a weight. The inner ring and the shaft are joined by holding the adhesive while it is cured while it is added.

  In addition, the manufacturing method of the rolling bearing device described in Patent Document 2 pushes the inner ring into the shaft while measuring the resonance frequency with respect to the rolling bearing device in which the inner ring and the shaft (shaft) are fixed by press-fitting, and the resonance frequency is constant. Preload is applied to become.

JP 2000-346085 A Japanese Patent Laid-Open No. 2003-239956

  However, the method of manufacturing a rolling bearing device described in Patent Document 1 has a disadvantage that it takes time to wait until the adhesive is cured, resulting in poor mass productivity. Further, in the method for manufacturing a rolling bearing device described in Patent Document 2, when the torque waveform of the rolling bearing has undulations, the resonance frequency fluctuates depending on the positional relationship between the inner ring and the outer ring, and torque (torque corresponding to one rotation of the rolling bearing). (Average value of the above) causes a variation. Furthermore, there is a problem in that torque variation occurs due to individual differences in the radial play of the rolling bearing and the curvature of the raceway.

  The present invention has been made in view of the above-described circumstances, and an object of the present invention is to provide a manufacturing apparatus and a manufacturing method of a rolling bearing apparatus that can manufacture a rolling bearing apparatus with reduced torque variation in a short time. And

In order to achieve the above object, the present invention provides the following manufacturing method and a manufacturing apparatus for realizing the manufacturing method.
In the present invention, the inner ring is rotated about the axis with respect to the outer ring of the rolling bearing assembly in which the shaft member is fitted in the inner ring of the two rolling bearings arranged coaxially with an interval in the axial direction. A rotating step for pushing the inner ring that is rotated with respect to the outer ring in the rotating step in a direction in which the inner rings are close to each other in the axial direction, and the inner ring is pushed in by the pushing step. When rotating with respect to the outer ring, the torque transmitted from the inner ring to the outer ring is measured by a torque measuring device, and a first cutoff frequency satisfying the following relational expressions (1) and (2) is satisfied. A first torque measurement value obtained by blocking high-frequency components by the high-frequency cutoff unit, and a second torque measurement value obtained by blocking high-frequency components by the second high-frequency cutoff unit having a cutoff frequency satisfying the following relational expressions (1) and (3): Calculate The measured value calculating step, and the first torque measured value, the second torque measured value and the target value calculated by the measured value calculating step satisfy the following relational expressions (4), (5) and (6): A determination step for determining whether or not the rotation is satisfied, and when the determination step determines that any one of the relational expressions (4), (5), and (6) is satisfied, the rotation step When the rotation of the inner ring and the pushing of the inner ring by the pushing step are finished, and it is determined that all of the relational expressions (4), (5), (6) are not satisfied, the first torque Provided is a method of manufacturing a rolling bearing device that calculates an additional push amount for further pushing the inner ring based on the measured value, the second torque measured value, and the target value, and returns to the push step.
F1> F2 (1)
F1 <R × 0.84 (2)
F2 <R / 60 (3)
TA2> TG0 (4)
TA1 <TG1 and TA2> TG2 (5)
TA1> TG1 (6)
Here, F1 is the cutoff frequency (Hz) of the first high-frequency cutoff unit, F2 is the cutoff frequency (Hz) of the second high-frequency cutoff unit, R is the rotational speed (rpm) of the rolling bearing, TA1 is the first torque measurement value, TA2 is a second torque measurement value, TG0 is a target value, TG1 is a predetermined first threshold value larger than the target value, and TG2 is a predetermined second threshold value smaller than the target value.

  According to the present invention, the inner ring, the outer ring, and the rolling element are brought into contact with each other without a gap by the pushing process, and the two rolling bearings are preloaded. Further, when it is determined by the determination step that the first torque measurement value, the second torque measurement value, and the target value satisfy any of the relational expressions (4), (5), and (6), the inner ring is pushed in. If it is determined that it does not satisfy all of the relational expressions (4), (5), and (6), the inner ring is pushed further by the additional push-in amount. The position of the inner ring is readjusted so as to obtain a desired torque. Therefore, there is no need for a waiting time until the adhesive is hardened as in the case where the inner ring and the shaft member are fixed with an adhesive, and the rolling bearing device is not affected by individual differences in the curvature of the radial play or raceway. Can be manufactured.

Here, the first high frequency cutoff unit cuts off the high frequency component from the torque measured by the torque measuring device , so that the spike torque caused by contamination or the like mixed in the rolling bearing in the first torque measurement value. Variations can be attenuated. Further, by cutting off the high frequency component from the torque measured by the torque measuring device , the roundness of the raceway of the inner and outer rings of the rolling bearing and the inclination of the rolling bearing are obtained in the second torque measurement value. It is possible to attenuate the wavy torque fluctuation caused by the above.

  Then, when the first torque measurement value, the second torque measurement value, and the target value satisfy the relational expression (4), the average torque transmitted from the inner ring to the outer ring of the rolling bearing substantially matches the target value. The pushing of the inner ring can be completed. Further, by satisfying the relational expression (5), even if the second torque measurement value is calculated to be lower than the original torque due to the time delay required for the high-frequency component cutoff by the second high-frequency cutoff unit, An excessive preload can be prevented. Further, if the relational expression (6) is satisfied, a steep torque change occurs, and the second torque measurement value is calculated at a significantly low value due to the time delay required for the high-frequency component cutoff by the second high-frequency cutoff unit. However, it is possible to prevent excessive preload from being applied to the rolling bearing.

  Therefore, it is possible to prevent a misjudgment in the judgment process due to spike-like torque fluctuations and waviness-like torque fluctuations, and to prevent excessive preload on the rolling bearings, and to produce a rolling bearing device that reduces torque variation in a short time. can do.

  In the above invention, the measurement value calculating step calculates the first torque measurement value when the time constant of the first high frequency cutoff unit has elapsed, and the time constant of the second high frequency cutoff unit. And calculating a first torque measurement value until a time constant of the second high-frequency cutoff unit elapses. The maximum value among the calculated first torque measurement values may be used for the determination in the determination step.

  By configuring in this way, the first high frequency cutoff unit with a low cutoff frequency has a shorter time constant than the second high frequency cutoff unit with a high cutoff frequency, and thus the second torque measurement value is calculated in the second calculation step. In the meantime, a plurality of first torque measurement values are calculated by the first calculation step. Therefore, by using the largest measured value of the first torque in the determination process, even if a sudden torque increase occurs when the inner ring is pushed in, it is avoided that it is affected, and spike-like torque fluctuations are avoided. Can be removed. Further, the wavy torque fluctuation can be removed by the second calculation step.

  In the above invention, the measurement value calculation step may calculate the first torque measurement value and the second torque measurement value when a time constant of the first high-frequency cutoff unit has elapsed.

  With this configuration, when the first torque measurement value calculated by the high-frequency component being cut off by the first high-frequency cut-off unit satisfies the relational expression (6), the inner ring is rotated and pushed by the rotating step. The pushing of the inner ring can be completed. Torque component is small, torque difference due to time delay is small between the first high-frequency cutoff unit and the second high-frequency cutoff unit, and the first torque measurement value and the second torque measurement value of the same magnitude are calculated. Effective when possible. Further, since the determination step determines immediately when the first torque measurement value becomes large, it is possible to prevent the inner ring from being pushed too much by the pushing step.

  Moreover, in the said invention, before the said pushing process, the temporary pushing which pushes in the said inner ring until the said 1st torque measured value calculated by the said measured value calculation process exceeds the predetermined 3rd threshold value smaller than the said target value And a standby step of waiting until a time equal to or greater than the time constant of the second high-frequency cutoff portion elapses while maintaining the position of the inner ring pushed in by the first temporary pushing step.

  By comprising in this way, the time concerning a pressing process can be shortened by the temporary pressing process of a short control period. Further, even if a time delay occurs in the cutoff of the high-frequency component by the second high-frequency cutoff unit due to a steep torque change in the temporary pushing step, the standby step occurs between the second torque measurement value and the first torque measurement value. The influence of the time difference can be eliminated. Therefore, in the indentation process, the second torque measurement value at which the high-frequency component is blocked by the second high-frequency blocking unit is made to substantially match the original torque value, and there is little torque variation without erroneous determination in the determination process. Can be manufactured.

In the present invention, the inner ring is rotated about the axis with respect to the outer ring of the rolling bearing assembly in which the shaft member is fitted in the inner ring of the two rolling bearings arranged coaxially with an interval in the axial direction. A rotating step for pushing the inner ring that is rotated with respect to the outer ring in the rotating step in a direction in which the inner rings are close to each other in the axial direction, and the inner ring is pushed in by the pushing step. When rotating with respect to the outer ring, the torque transmitted from the inner ring to the outer ring is measured by a torque measuring device , and the rolling is performed by the first high-frequency cutoff unit so that the following relational expression (7) is satisfied. The first torque measurement value obtained by averaging the torque for one rotation of the bearing and the torque for one rotation of the rolling bearing so as to satisfy the following relational expression (8) by the second high frequency cutoff unit Second torque A measured value calculating step for calculating a constant value, and the first torque measured value, the second torque measured value and the target value calculated by the measured value calculating step are expressed by the following relational expressions (4), (5), ( 6) a determination step for determining whether or not the condition is satisfied, and when the determination step determines that any one of the relational expressions (4), (5), and (6) is satisfied, When the rotation of the inner ring by the rotation process and the pushing of the inner ring by the pushing process are finished, and it is determined that all of the relational expressions (4), (5), (6) are not satisfied, Provided is a method of manufacturing a rolling bearing device that calculates an additional pushing amount for further pushing the inner ring based on the first torque measurement value, the second torque measurement value, and the target value, and returns to the pushing step.
1 <N1 × S × R × 1.67 (7)
1 <N2 × S × R × 2/60 (8)
TA2> TG0 (4)
TA1> TG0 and TA2> TG2 (5)
TA1> TG1 (6)
Here, S is the sampling period (s) of the output voltage of the torque measuring device , and N1 is the number of values (number of data) obtained by AD converting the output voltage of the torque measuring device at the sampling frequency of S by the first high frequency cutoff unit. ), R is the number of rotations (rpm) of the rolling bearing, N2 is the number of values (number of data) obtained by AD conversion of the output voltage of the torque measuring device at the sampling period of S by the second high frequency cutoff unit, TA1 is the first 1 torque measurement value, TA2 is a second torque measurement value, TG0 is a target value, TG1 is a predetermined first threshold value larger than the target value, and TG2 is a predetermined second threshold value smaller than the target value.

  According to the present invention, the torque of one rotation of the rolling bearing is averaged so as to satisfy the relational expression (7) by the first high-frequency cutoff unit, so that the first torque measurement value is mixed into the inside of the rolling bearing. Spike-like torque fluctuations caused by contamination and the like can be attenuated. In addition, by averaging the torque for one rotation of the rolling bearing so as to satisfy the relational expression (8) by the second high-frequency cutoff unit, in the second torque measurement value, the raceway of the inner ring and the outer ring of the rolling bearing is determined. It is possible to attenuate waviness-like torque fluctuations due to the roundness and the inclination of the rolling bearing. Therefore, it is possible to prevent erroneous determination in the determination process due to spike-like or wavy torque fluctuations.

Then, when the first torque measurement value, the second torque measurement value, and the target value satisfy any one of the relational expressions (4), (5), and (6), it is possible to apply excessive preload to the rolling bearing. Can be prevented.
As a result, a rolling bearing device with reduced torque variation can be manufactured in a short time.

In the above invention, the measurement value calculation step includes a first calculation step of calculating the first torque measurement value when the following equation (9) has elapsed, and the second calculation unit when the following equation (10) has elapsed. A second calculation step of calculating a torque measurement value, wherein the first calculation step repeatedly calculates the first torque measurement value until the second torque measurement value is measured by the second calculation step. The maximum value among the measured first torque values may be used for the determination in the determination step.
S × N1 (9)
S × N2 (10)
With this configuration, spike-like torque fluctuations can be removed by the first calculation process, and undulation-like torque fluctuations can be removed by the second calculation process.

In the above invention, the measurement value calculation step may calculate the first torque measurement value and the second torque measurement value when the following equation (9) has elapsed.
S × N1 (9)
With this configuration, when the first torque measurement value calculated by blocking the high-frequency component by the first high-frequency blocker satisfies the relational expression (6), the rotation of the inner ring and the push-in by the rotation process are performed. The pushing of the inner ring by the process can be completed.

  Moreover, in the said invention, before the said pushing process, the temporary pushing which pushes in the said inner ring until the said 1st torque measured value calculated by the said measured value calculation process exceeds the predetermined 3rd threshold value smaller than the said target value And a standby step of waiting until the second torque measurement value is measured by the second calculation step while maintaining the position of the inner ring pushed by the first temporary pushing step.

  With this configuration, the time required for the pressing process is shortened by the temporary pressing process with a short control cycle, and a time delay is caused in the high-frequency component cutoff by the second high-frequency cutoff unit due to a steep torque change in the temporary pressing process. Even if this occurs, the influence of the time difference generated between the second torque measurement value and the first torque measurement value can be eliminated by the standby process. Therefore, in the indentation process, the second torque measurement value at which the high-frequency component is blocked by the second high-frequency blocking unit is made to substantially match the original torque value, and there is little torque variation without erroneous determination in the determination process. Can be manufactured.

Moreover, in the said invention, the said rotation process is good also as making the rotation speed which rotates the said inner ring in the said temporary pushing process larger than the rotation speed which rotates the said inner ring in the said pushing process.
With this configuration, it is possible to finish pushing the inner ring in a short time while suppressing variations in torque.

Moreover, in the said invention, it is good also as releasing the pushing force added to the said inner ring | wheel by the said temporary pushing process before the said waiting | standby process.
If the inner ring is pushed in in the press-fitting process, the manufacturing apparatus that fixes the inner ring may be distorted, and the inner ring may be further pushed in the axial direction during the standby process due to the distortion of the manufacturing apparatus, increasing the torque. is there. By slightly returning the inner ring that has been pushed in by the temporary pushing process before the standby process, it is possible to alleviate the influence of distortion generated in the manufacturing apparatus and prevent the inner ring from being pushed during the standby process. This can prevent the torque from exceeding the target value during the standby process.

Moreover, in the said invention, it is good also as calculating the pushing amount which pushes in the said inner ring | wheel by the said pushing process by the following Formula.
ΔV = A × (TG0−TA)
V _n = V _n-1 + ΔV
ΔV = 0 when ΔV <0
Here, ΔV is the inner ring pushing amount, A is a predetermined coefficient, and TA is the larger of the first torque measurement value and the second torque measurement value.
With this configuration, it is possible to manufacture a rolling bearing device that prevents the inner ring from being pushed too much and has less torque variation.

Moreover, in the said invention, it is good also as including the adhesive agent application process of apply | coating an adhesive agent between the said inner ring | wheel and the said shaft member before the said rotation process.
With this configuration, the inner ring and the shaft member are bonded to each other when the adhesive is cured in a state where the inner ring is fixed to the shaft member by press-fitting at the position where the inner ring is pushed. Therefore, it is possible to more firmly fix the inner ring and the shaft member with the adhesive while maintaining the preloaded state in a short time.

The invention further includes a welding step of laser welding the inner ring and the shaft member pushed in the axial direction after the inner ring is rotated by the rotation step and the inner ring is pushed by the pushing step. It is good.
By comprising in this way, an inner ring | wheel and a shaft member are joined by laser welding in the state fixed to the shaft member by press-fitting in the position where the inner ring was pushed. Therefore, it is possible to more firmly fix the inner ring and the shaft member by laser welding while maintaining the preloaded state in a short time.

  By the way, in the above, the inner ring is rotated around the axis, and the inner ring rotated with respect to the outer ring is pushed in the direction in which the inner rings are close to each other in the axial direction, while the inner ring is pushed. A torque measurement step was taken to measure the torque transmitted from the inner ring to the outer ring when rotating with respect to the outer ring, but conversely, the outer ring was rotated so that the outer rings were axially aligned with each other. A method of measuring the torque transmitted from the outer ring to the inner ring when the outer ring rotates with respect to the inner ring while pushing the outer ring in a direction close to each other is also effective.

  According to the present invention, it is possible to produce a rolling bearing device with reduced torque variation in a short time.

It is a longitudinal cross-sectional view of the rolling bearing apparatus manufactured by the manufacturing method of the rolling bearing apparatus which concerns on 1st Embodiment of this invention. It is a flowchart explaining the manufacturing method of the rolling bearing apparatus which concerns on 1st Embodiment of this invention. It is a longitudinal cross-sectional view of the manufacturing apparatus used for the manufacturing method of FIG. It is a block diagram of the control apparatus of FIG. It is a figure which shows the relationship between the output voltage of a load cell, and time. It is a figure which shows the relationship between the output voltage of a 1st low-pass filter, and time. It is a figure which shows the relationship between the output voltage of a 2nd low-pass filter, and time. It is a block diagram which shows the control apparatus of the manufacturing apparatus used for the manufacturing method which concerns on the 1st modification of 1st Embodiment of this invention. It is a block diagram which shows the control apparatus of the manufacturing apparatus used for the manufacturing method which concerns on the 2nd modification of 1st Embodiment of this invention. It is a longitudinal cross-sectional view of the rolling bearing apparatus manufactured by the manufacturing method which concerns on the 3rd modification of 1st Embodiment of this invention. It is a longitudinal cross-sectional view of the rolling bearing apparatus manufactured by the manufacturing method which concerns on the 4th modification of 1st Embodiment of this invention. It is a flowchart explaining the manufacturing method of the rolling bearing apparatus which concerns on 2nd Embodiment of this invention. It is a flowchart explaining the manufacturing method of the rolling bearing apparatus which concerns on 3rd Embodiment of this invention. It is a flowchart explaining the manufacturing method of the rolling bearing apparatus which concerns on 4th Embodiment of this invention. It is a figure which shows the relationship between the torque and voltage by the manufacturing method of the rolling bearing apparatus of FIG. 14, and time. It is a figure which shows the relationship between the torque by the manufacturing method of the rolling bearing apparatus which concerns on the modification of 4th Embodiment of this invention, and time.

[First Embodiment]
Hereinafter, the manufacturing method of the rolling bearing device concerning a 1st embodiment of the present invention is explained with reference to drawings.
The method for manufacturing a rolling bearing device according to the present embodiment can manufacture a rolling bearing device 1 as shown in FIG. 1 used in, for example, a hard disk drive device.

  As shown in FIG. 1, the rolling bearing device 1 is fitted to a first rolling bearing 10 and a second rolling bearing 20 that are coaxially arranged at intervals in the axial direction, and these rolling bearings 10 and 20. A shaft (shaft member) 31 and an annular spacer member 33 sandwiched between the rolling bearings 10 and 20 in the axial direction are provided. Reference numeral 31a indicates a flange-like flange portion protruding outward in the radial direction.

  The two rolling bearings 10 and 20 are incorporated in an annular space between the annular inner rings 11 and 21 and the outer rings 13 and 23 that are arranged coaxially so as to be able to roll at intervals in the circumferential direction. A plurality of rolling elements 15 and 25 are provided, and the inner rings 11 and 21 are fitted into the outer peripheral surface of the shaft 31 in a press-fitted state, whereby the inner rings 11 and 21 and the shaft 31 are respectively press-fitted and fixed. Yes. Further, the spacer member 33 is sandwiched between the outer rings 13 and 23 in the axial direction, whereby a gap corresponding to the axial length of the spacer member 33 is formed between the inner rings 11 and 21.

  In the rolling bearing device 1 configured as described above, when the shaft 31 is rotated about its axis, the rolling elements 15 and 25 roll between the inner rings 11 and 21 and the outer rings 13 and 23, thereby causing the shaft 31 to move. The fixed inner rings 11 and 21 are rotated about the axis with respect to the outer rings 13 and 23 together with the shaft 31.

  Further, by fixing the inner rings 11 and 21 to the shaft 31 in a state where the inner rings 11 and 21 are pressed toward each other, the inner rings 11 and 21 and the outer rings 13 and 23 and the rolling elements 15 and 25 are brought into contact with each other without any gap, thereby rolling. A state in which a preload is applied to the bearings 10 and 20 can be maintained. Hereinafter, the state before the preload is applied to the rolling bearings 10 and 20, that is, the state of the temporary assembly assembled until the distance between the inner rings 11 and 21 and the distance between the outer rings 13 and 23 becomes substantially the same, It is called solid 1A.

  As shown in the flowchart of FIG. 2, the manufacturing method of the rolling bearing device according to the present embodiment rotates the inner rings 11 and 21 about the axis with respect to the outer rings 13 and 23 of the rolling bearing device assembly 1A. (Step SA1), a pushing process (Step SA2) for pushing the inner ring 21 rotated with respect to the outer ring 23 in the rotating process in a direction in which the inner rings 11, 21 are close to each other in the axial direction, and a pushing process When the inner rings 11 and 21 are rotated by the outer ring 21 and 23 while the inner rings 11 and 21 are pushed in, the torque transmitted from the inner rings 11 and 21 to the outer rings 13 and 23 is measured to calculate a measured value. Step SA3) and a determination step (Step SA4) for determining the relationship between the torque measurement value calculated by the measurement value calculation step and the target value.

In the measurement value calculation step (step SA3), the first high-frequency component is blocked using a (first) low-pass filter (first high-frequency cutoff unit) having a cutoff frequency that satisfies the following relational expressions (1) and (2). Torque measurement values and second torque measurement values obtained by blocking high frequency components using a (second) low-pass filter (second high frequency cutoff unit) having a cutoff frequency satisfying the following relational expressions (1) and (3): It comes to calculate.
F1> F2 (1)
F1 <R × 0.84 (2)
F2 <R / 60 (3)
Here, F1 is the cutoff frequency (Hz) of the first low-pass filter, F2 is the cutoff frequency (Hz) of the second low-pass filter, and R is the rotation speed (rpm) of the rolling bearings 10 and 20.

In the determination step (step SA4), it is determined whether or not the first torque measurement value, the second torque measurement value, and the target value satisfy the following relational expressions (4), (5), and (6). ing.
TA2> TG0 (4)
TA1> TG0 and TA2> TG2 (5)
TA1> TG1 (6)
Here, TA1 is a first torque measurement value, TA2 is a second torque measurement value, TG0 is a target value, TG1 is a predetermined first threshold value larger than the target value, and TG2 is a predetermined second threshold value smaller than the target value. is there.

  Further, in the method of manufacturing the rolling bearing device according to the present embodiment, when it is determined by the determination step (step SA4) that any one of the relational expressions (4), (5), and (6) is satisfied. In addition, the rotation of the inner rings 11 and 21 by the rotation process (step SA1) and the pushing of the inner ring 21 by the pushing process (step SA2) are completed. Thereby, the inner rings 11 and 21 are positioned in a state where the two rolling bearings 10 and 20 are preloaded, and the inner rings 11 and 21 and the shaft 31 are fixed by press-fitting.

  On the other hand, when it is determined by the determination step that all of the relational expressions (4), (5), and (6) are not satisfied, based on the first torque measurement value, the second torque measurement value, and the target value. Then, the additional pushing amount for further pushing the inner ring 21 is calculated, and the process returns to the pushing step. As a result, the inner ring 21 is further pushed in by the additional pushing amount, and the position of the inner ring 21 is readjusted so as to obtain a desired torque.

In the present embodiment, for example, a manufacturing apparatus 100 as shown in FIG. 3 is used.
As shown in the figure, the manufacturing apparatus 100 includes a shaft receiver 41 that fixes the shaft 31 of the rolling bearing device assembly 1A, and a motor (rotating means) 43 that rotates the shaft 31 fixed to the shaft receiver 41 about its axis. An inner ring pusher 45 capable of pushing the inner ring 21 of the rolling bearing device assembly 1A in the axial direction, an actuator 47 such as a piezoelectric element for moving the inner ring pusher 45 back and forth in the axial direction, and the inner ring 11, A load cell (torque measuring device ) 49 that measures torque transmitted from the inner ring 11, 21 to the outer ring 13, 23 when the 21 rotates, and a control device 50 that controls the motor 43, the actuator 47, and the load cell 49. I have. The inward pusher 45 and the actuator 47 constitute pushing means. Reference numeral 42 denotes a support portion that supports the shaft receiver 41 so as to be rotatable around the axis, and reference numeral 46 denotes a support portion that supports the inner ring pusher 45 so as to be rotatable around the axis.

The shaft receiver 41 is rotated around the axis by a motor 43.
The actuator 47 can move the inner ring pusher 45 in the axial direction to press the inner ring 21 of the second rolling bearing 20 and to push the inner ring 21 in a direction to approach the inner ring 11 of the first rolling bearing 10. ing.

  The load cell 49, for example, presses a contact portion 49a made of a high friction coefficient material such as a resin having a high friction coefficient against the outer ring 13 of the first rolling bearing 10 from the outer side in the radial direction to act on the outer rings 13 and 23. , That is, torque transmitted from the inner rings 11, 21 to the outer rings 13, 23 when the inner rings 11, 21 rotate with respect to the outer rings 13, 23 can be measured. When the torque is measured by the load cell 49, the output voltage is sent to the control device 50.

  As shown in FIG. 4, the control device 50 performs a calculation process and a determination process to calculate a torque measurement value or to send a command value to the actuator 47 and the motor 43 and a CPU (torque measurement value calculation means). (Central Processing Unit) 51, AD converters 52 and 54 for converting a command value from the CPU 51 into a drive voltage, an amplifier 53 for amplifying the drive voltage converted by the AD converter 52 and applying it to the actuator 47, and AD A driver (voltage amplifier) 55 that amplifies the drive voltage converted by the converter 54 and applies it to the motor 43, an amplifier 56 that amplifies the output voltage from the load cell 49, and a high-frequency component of the output voltage amplified by the amplifier 56 A first low-pass filter 57A and a second low-pass filter 57B, The AD converter 58A that digitizes the output voltage from which the high-frequency component is cut off by the first low-pass filter 57A and sends a signal to the CPU 51, and the output voltage from which the high-frequency component is cut off by the second low-pass filter 57B is digitized and signals to the CPU 51 And a memory 59 for storing the torque measurement value calculated by the CPU 51, the target value, the first threshold value, the second threshold value, and the like.

  The first low-pass filter 57A has a cutoff frequency that satisfies the above relational expressions (1) and (2). The second low-pass filter 57B has a cutoff frequency that satisfies the above relational expressions (1) and (3).

  The CPU 51 calculates the first torque measurement value based on the output signal sent from the AD converter 58A, and calculates the second torque measurement value based on the output signal sent from the AD converter 58B. ing. Then, the CPU 51 reads the target value, the first threshold value, and the second threshold value from the memory 59, and the first torque measurement value, the second torque measurement value, and the target value are represented by the above relational expressions (4), (5), It is determined whether or not (6) is satisfied.

Next, the operation of the method of manufacturing the rolling bearing device according to this embodiment configured as described above will be described.
In order to manufacture the rolling bearing device 1 by the manufacturing method according to the present embodiment, first, the shaft 31 of the rolling bearing device assembly 1 </ b> A is fixed to the shaft receiver 41. The inner ring pusher 45 is brought into contact with the axial end surface of the inner ring 21 of the second rolling bearing 20, and the contact portion 49 a of the load cell 49 is brought into contact with the outer circumferential surface of the outer ring 13 of the first rolling bearing 10.

  Next, a command value is output from the CPU 51, the motor 43 is driven via the AD converter 54 and the driver 55, and the shaft 31 is rotated around the axis together with the shaft receiver 41 (step SA1). When the shaft 31 rotates about the axis, the inner rings 11 and 21 into which the shaft 31 is press-fitted rotate about the axis with respect to the outer rings 13 and 23, and torque is transmitted from the inner rings 11 and 21 to the outer rings 13 and 23.

  Subsequently, a command value is output from the CPU 51 to drive the actuator 47 via the AD converter 52 and the amplifier 53, and the inner ring pusher 45 presses the inner ring 21 of the rotating second rolling bearing 20 in the axial direction. . As a result, the inner ring 21 is pushed in a direction approaching the inner ring 11 of the first rolling bearing 10 (step SA2).

  Here, the inner ring 11 of the first rolling bearing 10 is abutted against the flange portion 31 a of the shaft 31. Therefore, by simply pushing the inner ring 21 in the axial direction, the inner rings 11 and 21 are brought close to each other in the axial direction, and a preload is applied to the first rolling bearing 10 and the second rolling bearing 20. When preload is applied to the rolling bearings 10 and 20, the torque transmitted from the inner rings 11 and 21 to the outer rings 13 and 23 increases.

  When the inner rings 11 and 21 rotate about the axis with respect to the outer rings 13 and 23, the torque transmitted from the inner rings 11 and 21 to the outer rings 13 and 23 is measured by the load cell 49. The output voltage from the load cell 49 is amplified by the amplifier 56 and sent to the first low-pass filter 57A and the second low-pass filter 57B.

  The output voltage sent to the first low-pass filter 57A is blocked from high-frequency components, digitized by the AD converter 58A, and input to the CPU 51 as an output signal. Similarly, the output voltage sent to the second low-pass filter 57B is numerically converted by the AD converter 58B after the high frequency component is cut off and input to the CPU 51 as an output signal.

  In this case, the first low-pass filter 57A blocks high-frequency components from the output voltage of the load cell 49, so that the first torque measurement value has a spike-like shape caused by contamination or the like mixed inside the rolling bearings 10 and 20. Torque fluctuations can be attenuated. Further, the high-frequency component is cut off from the output voltage of the load cell 49 by the second low-pass filter 57B, so that in the second measured torque value, the raceway roundness of the inner rings 11, 21 of the rolling bearings 10, 20, and the outer rings 13, 23 is obtained. The wavy torque fluctuation due to the degree and the inclination of the rolling bearings 10 and 20 can be attenuated.

  For example, even if the output voltage of the load cell 49 has a waveform as shown in FIG. 5, the output voltage from which the high frequency component is blocked by the first low pass filter 57A is, for example, as shown in FIG. For example, as shown in FIG. 7, the output voltage in which the high-frequency component is cut off by the second low-pass filter 57B has a linear waveform with no wavy torque fluctuation. 5, 6, and 7, the vertical axis represents the output voltage, and the horizontal axis represents time.

  Next, the CPU 51 calculates the first torque measurement value based on the output signal from the AD converter 58A, and calculates the second torque measurement value based on the output signal from the AD converter 58B (step SA3). . The first torque measurement value and the second torque measurement value calculated by the CPU 51 are stored in the memory 59. Then, the CPU 51 determines whether or not the calculated first torque measurement value and second torque measurement value and the target value stored in the memory 59 satisfy the relational expressions (4), (5), and (6). Determination is made (step SA4).

  When the CPU 51 determines that any one of the relational expressions (4), (5), and (6) is satisfied, a drive stop command value is input to the actuator 47 via the AD converter 52 and the amplifier 53. At the same time, a command value for stopping driving is input to the motor 43 via the AD converter 54 and the driver 55. Then, the pushing of the inner ring 21 by the inner ring pusher 45 is finished (step SA5), and the rotation of the inner rings 11, 21 with respect to the outer rings 13, 23 together with the shaft 31 is stopped (step SA6).

  Thus, the rolling bearing device 1 is completed in which the inner ring 21 is press-fitted and fixed with respect to the shaft 31 in a state where the first rolling bearing 10 and the second rolling bearing 20 are preloaded.

  In this case, the first torque measurement value, the second torque measurement value, and the target value satisfy the relational expression (4), and are transmitted from the inner rings 11 and 21 of the rolling bearings 10 and 20 to the outer rings 13 and 23. The pushing of the inner ring 21 can be completed in a state where the average torque substantially matches the target value. In addition, by satisfying the relational expression (5), even if the second torque measurement value is calculated to be lower than the original torque due to the time delay required to block the high-frequency component by the second low-pass filter 57B, the rolling bearing 10 , 20 can be prevented from being excessively preloaded. Further, if the relational expression (6) is satisfied, a steep torque change occurs, and the second torque measurement value is calculated to be a significantly low value due to the time delay required to block the high frequency component by the second low-pass filter 57B. However, it is possible to prevent excessive preloading of the rolling bearings 10 and 20.

  On the other hand, if the CPU 51 determines that all of the relational expressions (4), (5), and (6) are not satisfied, the inner ring is based on the first torque measurement value, the second torque measurement value, and the target value. An additional pushing amount for further pushing 21 is calculated (step SA7).

Here, the additional pushing amount is calculated by the following equation, where TA is the larger of the first torque measurement value and the second torque measurement value.
ΔV = A × (TG0−TA)
V _n = V _n-1 + ΔV
ΔV = 0 when ΔV <0
Here, ΔV is the additional pushing amount, and A is a predetermined coefficient.
In this way, it is possible to manufacture the rolling bearing device 1 that prevents the inner ring 21 from being pushed too much and has less torque variation.

  When the additional pushing amount is calculated by the CPU 51, the process returns to the pushing step (step SA2), and steps SA2 to SA4 are repeated until the difference between the torque measurement value and the target value is equal to or less than a predetermined threshold value.

  As described above, according to the manufacturing method of the rolling bearing device according to the present embodiment, the inner rings 11 and 21 and the shaft 31 are fixed with the adhesive by fixing the inner rings 11 and 21 and the shaft 31 by press-fitting. The waiting time until the adhesive is cured can be omitted. In addition, by making the torque transmitted from the inner races 11 and 21 to the outer races 13 and 23 substantially coincide with the target value, there is no need to be affected by individual differences in the curvature of the radial play or raceway.

  The first low-pass filter 57A and the second low-pass filter 57B prevent erroneous determination in the determination step (step SA4) due to spike-like torque fluctuations and waviness-like torque fluctuations, and excessive preload is applied to the rolling bearings 10 and 20. Thus, it is possible to manufacture the rolling bearing device 1 with reduced torque variation in a short time.

This embodiment can be modified as follows.
In this embodiment, the output voltage output from the load cell 49 and amplified by the amplifier 56 is sent to the first low-pass filter 57A and the second low-pass filter 57B, and is sent to the CPU 51 via the AD converter 58A or AD converter 58B, respectively. However, as a first modification, for example, as shown in FIG. 8, the output voltage amplified by the amplifier 56 is blocked from the high-frequency component by the first low-pass filter 57A, and then the second low-pass filter 57B and AD The signal may be sent to the converter 58B, input from the second low-pass filter 57B to the CPU 51 via the AD converter 58A, and input from the AD converter 58B to the CPU 51 without passing through the second low-pass filter 57B.

  In the present embodiment, the first low-pass filter 57A and the second low-pass filter 57B are described as the first high-frequency cutoff unit and the second high-frequency cutoff unit. However, as a second modification, for example, FIG. As shown in the figure, the first high-frequency cutoff unit and the second high-frequency cutoff unit may be a first low-pass filter and a second low-pass filter (both not shown) that perform an averaging process inside the CPU 51.

In this case, in the measurement value calculation step (step SA3), the first torque measurement value obtained by averaging the torque of one rotation of the rolling bearings 10 and 20 so as to satisfy the following relational expression (7) by the first low-pass filter. And the second low-pass filter may calculate a second torque measurement value that averages the torque of one rotation of the rolling bearings 10 and 20 so as to satisfy the following relational expression (8). .
1 <N1 × S × R × 1.67 (7)
1 <N2 × S × R × 2/60 (8)
Here, S is the sampling period (s) of the output voltage of the load cell 49, N1 is the number of values (number of data) obtained by AD converting the output voltage of the load cell 49 at the sampling period of S by the first low-pass filter, R Is the number of rotations (rpm) of the rolling bearing, and N2 is the number (data number) of values obtained by AD conversion of the output voltage of the load cell 49 at the sampling period of S by the second low-pass filter.

  The CPU 51 then calculates the first torque measurement value calculated by the first low-pass filter, the second torque measurement value calculated by the second low-pass filter, and the target value from the relational expressions (4), (5), (6 ) May be adjusted in the same manner as in this embodiment.

  According to this modification, the first torque measurement value is obtained by averaging the torque of one rotation of the rolling bearings 10 and 20 so as to satisfy the relational expression (7) by the first low-pass filter. Spike-like torque fluctuations caused by contamination or the like mixed in the interior of the motor can be attenuated. Further, by averaging the torque of one rotation of the rolling bearings 10 and 20 so as to satisfy the relational expression (8) by the second low-pass filter, the second torque measurement value is obtained from the inner rings 11 and 21 of the rolling bearings 10 and 20. Further, the wavy torque fluctuation due to the roundness of the raceway of the outer rings 13 and 23, the inclination of the rolling bearing, and the like can be attenuated.

  Similarly in this case, even if the output voltage of the load cell 49 has a waveform as shown in FIG. 5, the output from the first low-pass filter is a sine wave in which spike-like torque fluctuations are attenuated as shown in FIG. As shown in FIG. 7, the output from the second low-pass filter has a linear waveform in which the wavy torque fluctuation is attenuated.

  Therefore, it is possible to prevent erroneous determination in the determination step (step SA4) due to spike-like or undulation-like torque fluctuations, prevent excessive preloading on the rolling bearings 10 and 21, and reduce the torque variation in a short time. The bearing device 1 can be manufactured.

  In the present embodiment, the inner rings 11 and 21 and the shaft 31 are fixed by press-fitting. As a third modification, for example, the inner rings 11 and 21 and the shaft 31 are arranged before the rotation step (step SA1). It is good also as including the adhesive agent application process of apply | coating an adhesive agent between.

  In this case, as shown in FIG. 10, when the rolling bearing device assembly 1 </ b> A is assembled, the adhesive is previously applied to the gap between the inner peripheral surface of the inner rings 11 and 21 and the outer peripheral surface of the shaft 31 by an adhesive application process. 37 may be applied in advance. And before the adhesive 37 hardens | cures, what is necessary is just to implement the process after a rotation process (step SA1).

  By doing in this way, the inner ring | wheels 11 and 21 and the shaft 31 adhere | attach when the adhesive agent 37 hardens | cures in the state fixed to the shaft 31 by press injection in the position where the inner ring | wheel 21 was pushed. Therefore, the inner rings 11 and 21 and the shaft 30 can be more firmly fixed by the adhesive 37 while maintaining the preloaded state in a short time.

  Further, as a fourth modification, for example, after the rotation of the inner rings 11 and 21 by the rotation process (step SA1) and the pushing of the inner ring 21 by the pushing process (step SA2), the pushing process (step SA3) is performed in the axial direction. It is good also as including the welding process of laser-welding the inner ring 21 and the shaft 31 which were pushed in.

  In this case, for example, as shown in FIG. 11, the vicinity of the boundary between the peripheral edge of one end surface of the inner ring 21 pushed in by the pushing step SA2 and the outer circumferential surface of the shaft 31 may be laser-welded. In FIG. 11, reference numeral 39 indicates a laser welding mark. By doing so, the inner ring 21 and the shaft 31 are joined by laser welding in a state where the inner ring 21 is fixed to the shaft 31 by press-fitting at the position where the inner ring 21 is pushed. Therefore, it is possible to more firmly fix the inner rings 11 and 21 and the shaft 30 by laser welding while maintaining the pre-loaded state in a short time.

[Second Embodiment]
Next, a method for manufacturing a rolling bearing device according to the second embodiment of the present invention will be described.
In the method of manufacturing the rolling bearing device according to the present embodiment, as shown in the flowchart of FIG. 12, the measurement value calculation process has passed the time constant of the first low-pass filter 57A (hereinafter referred to as the first time constant). Sometimes the first torque measurement value is calculated when the first calculation step (step SB3) for calculating the first torque measurement value and the time constant of the second low-pass filter 57B (hereinafter referred to as the second time constant) have elapsed. This is different from the first embodiment in that it includes a second calculation step (step SB7).
Hereinafter, the same reference numerals are given to the portions having the same configuration as the manufacturing method of the rolling bearing device according to the first embodiment, and the description thereof is omitted.

  In the present embodiment, when the measurement of the torque transmitted from the inner ring 11, 21 to the outer ring 13, 23 is started by the load cell 49, the CPU 51 calculates the timing for calculating the first torque measurement value and the second torque measurement value. The calculation timing is counted. The count value of the timing for calculating the first torque measurement value is set as count C1, and the timing of calculating the second torque measurement value is set as count C2.

  In the first calculation step SB3, the CPU 51 determines whether or not the count C1 exceeds the first time constant. When the count C1 exceeds the first time constant, the first torque measurement value is calculated. The calculated first torque measurement value is stored in the memory 59.

  Since the first low-pass filter 57A having a low cutoff frequency has a shorter time constant than the second low-pass filter 57B having a high cutoff frequency, the first calculation step SB3 performs the first torque until the count C2 has passed the second time constant. The calculation of measured values is repeated. And among the 1st torque measurement values memorize | stored in the memory 59, the maximum value is used for the determination of a determination process (step SA4).

  In the second calculation step SB7, the CPU 51 determines whether or not the count C2 exceeds the time constant of the second low-pass filter 57B. When the count C2 exceeds the time constant of the second low-pass filter 57B, the second torque measurement value is calculated. It is supposed to be. The calculated second torque measurement value is used for determination in the determination step (step SA4).

The operation of the method of manufacturing the rolling bearing device according to this embodiment configured as described above will be described.
To manufacture the rolling bearing device 1 by the manufacturing method according to the present embodiment, the inner rings 11 and 21 are rotated around the shaft together with the shaft 31 of the rolling bearing device assembly 1A (step SA1), and the inner ring 21 is pushed in the axial direction. (Step SA2) The CPU 51 starts counting the count C1 and the count C2 (Step SB1).

  Next, the CPU 51 determines whether or not the count C1 exceeds the first time constant of the first low-pass filter 57A (step SB2). When it is determined that the count C1 exceeds the first time constant, the CPU 51 determines the first torque measurement value based on the torque output signal input from the load cell 49 via the first low-pass filter 57A and the AD converter 58A. Is calculated (step SB3). When the first torque measurement value is calculated by the CPU 51, the count C1 is reset (step SB4).

  On the other hand, if it is determined that the count C1 does not exceed the first time constant or the count C1 is reset, whether or not the count C2 exceeds the second time constant of the second low-pass filter 57B by the CPU 51. Is determined (step SB5).

  If the CPU 51 determines that the count C2 does not exceed the second time constant of the second low-pass filter 57B, the process returns to step SB2, and steps SB2 to SB5 are repeated. On the other hand, when it is determined that the count C2 exceeds the second time constant, the CPU 51 reads the maximum value among the plurality of first torque measurement values stored in the memory 59 (step SB6) and the CPU 51. Thus, the second measured torque value is calculated based on the torque output signal input from the load cell 49 via the second low-pass filter 57B and the AD converter 58B (step SB7).

  Next, the CPU 51 determines whether or not the first torque measurement value, the second torque measurement value, and the target value satisfy the relational expressions (4), (5), and (6) (step SA4). When it is determined that any one of the relational expressions (4), (5), and (6) is satisfied, the process proceeds to steps SA5 and SA6, and the manufacturing process ends. On the other hand, when it is determined that all of the relational expressions (4), (5), and (6) are not satisfied, the process returns to step SB1 via step SA7, and steps SB1 to SA4 are repeated.

  As described above, according to the manufacturing method of the rolling bearing device according to the present embodiment, the first calculation step (step SB3) until the second torque measurement value is calculated by the second calculation step (step SB7). ) Is used in the determination step (step SA4), even if a sudden torque increase occurs when the inner ring 21 is pushed, it is affected. Can be avoided and spike-like torque fluctuations can be eliminated. Further, the wavy torque fluctuation can be removed by the second calculation step (step SB7). Thereby, the rolling bearing device 1 with reduced torque variation can be manufactured in a short time.

This embodiment can be modified as follows.
As a fifth modification, as in the second modification, the first high-frequency cutoff unit and the second high-frequency cutoff unit are replaced with the first low-pass filter 57A and the second low-pass filter 57B. It may be a first low-pass filter and a second low-pass filter (both not shown) that perform the calculation.

In this case, the first calculation step (step SB3) calculates the first torque measurement value when the count C1 has passed the following equation (9), and the second calculation step (step SB7) What is necessary is just to calculate a 2nd torque measured value when (10) passes.
S × N1 (9)
S × N2 (10)

The first calculation step SB3 may repeat the calculation of the first torque measurement value until the second torque measurement value is measured by the second calculation step SB7.
Even in such a case, the rolling bearing device in which spike-like torque fluctuations are removed by the first calculation step and waviness-like torque fluctuations are removed by the second calculation step, and torque variations are reduced in a short time. 1 can be manufactured.

[Third Embodiment]
Next, a method for manufacturing a rolling bearing device according to the third embodiment of the present invention will be described.
As shown in the flowchart of FIG. 13, the manufacturing method of the rolling bearing device according to the present embodiment includes the first torque measurement value and the measurement value calculation step when the first time constant of the first low-pass filter 57A has elapsed. The second embodiment differs from the first and second embodiments in that the second torque measurement value is calculated.
Hereinafter, the same reference numerals are given to the portions having the same configuration as the manufacturing method of the rolling bearing device according to the first embodiment and the second embodiment, and the description thereof is omitted.

  In the present embodiment, the CPU 51 counts the timing for calculating the first torque measurement value and the second torque measurement value. The count value of the timing for calculating the first torque measurement value and the second torque measurement value is set to be the count C1 similarly to the count value of the timing for calculating only the first torque measurement value.

  When the CPU 51 determines that the count C1 exceeds the first time constant, the measurement value calculation step calculates a first torque measurement value (first calculation step: step SB3) and calculates a second torque measurement value ( Second calculation step: Step SB7). The calculated first torque measurement value and second torque measurement value are used for determination in the determination step (step SA4).

  According to the method for manufacturing a rolling bearing device according to the present embodiment, when the first torque measurement value calculated by blocking the high-frequency component by the first low-pass filter 57A satisfies the relational expression (6), the rotation process is performed. The rotation of the inner rings 11 and 21 by (Step SA1) and the pushing of the inner ring 21 by the pushing process (Step SA2) can be completed. Therefore, the rolling bearing device 1 with reduced torque variation can be manufactured in a shorter time. There is little undulation component in the torque, there is almost no difference in torque due to time delay between the first low-pass filter 57A and the second low-pass filter 57B, and the first torque measurement value and the second torque measurement value of the same magnitude This is effective when can be calculated.

  Also in this embodiment, as in the fifth modification, the first high-frequency cutoff unit and the second high-frequency cutoff unit are replaced with the first low-pass filter 57A and the second low-pass filter 57B. A first low-pass filter and a second low-pass filter (both not shown) may be used.

In this case, the measurement value calculation step may calculate the first torque measurement value and the second torque measurement value when the count value C1 passes the following expression (9).
S × N1 (9)

  Also in this case, when the first torque measurement value calculated by blocking the high frequency component by the first low-pass filter satisfies the relational expression (6), the rotation process (step SA1) and the pushing process ( Step SA2) is completed, and the rolling bearing device 1 with reduced torque variation can be manufactured in a shorter time.

[Fourth Embodiment]
Next, a method for manufacturing a rolling bearing device according to the fourth embodiment of the present invention will be described.
As shown in the flowchart of FIG. 14, the rolling bearing device manufacturing method according to the present embodiment includes a temporary pressing step (step SC1), a temporary pressing step (step SC1), and a temporary pressing step (step SC1) after the rotating step (step SA1). It differs from the first to third embodiments in that it includes a standby step (step SC6) in which the inner ring 21 is pushed by the pushing step and waits for a predetermined time.
In the following, portions that share the same configuration as the manufacturing method of the rolling bearing device according to the first embodiment to the third embodiment are denoted by the same reference numerals, and description thereof is omitted.

In the present embodiment, a predetermined third threshold value smaller than the target value is stored in the memory 59.
In the rotation process SA1, it is desirable that the rotation speed for rotating the inner rings 11, 21 during the temporary pressing process SC1 is larger than the rotation speed for rotating the inner rings 11, 21 during the pressing process SA2. By doing in this way, pushing of the inner ring | wheel 21 can be completed in a short time, suppressing the dispersion | variation in a torque.

  In the temporary pushing step (step SC1), the CPU 51 counts the timing for calculating the second torque measurement value, and determines whether or not the first torque measurement value calculated by the measurement value calculation step SC3 exceeds the third threshold value. (Step SC4), the inner ring 21 is pushed in until the first measured torque value is determined to exceed the third threshold value.

  When the CPU 51 determines that the first torque measurement value does not exceed the third threshold value, an additional push amount for further pushing the inner ring 21 is calculated based on the calculated first torque measurement value and the third threshold value. (Step SC5), the process returns to the temporary pushing step (step SC1).

In the standby process (step SC6), the CPU 51 stops increasing the drive voltage applied to the actuator 47, and maintains the position of the inner ring 21 pushed in by the temporary pushing process, and the time constant of the second low-pass filter 57B is exceeded. Wait until the time has passed.
When a time equal to or greater than the time constant of the second low-pass filter 57B has elapsed (step SC7 “YES”), the process proceeds to the pushing step (step SA2). Thereafter, the same steps as those after step SA2 of the third embodiment shown in FIG. It is going to progress.

The operation of the method of manufacturing the rolling bearing device according to this embodiment configured as described above will be described.
In order to manufacture the rolling bearing device 1 by the manufacturing method according to the present embodiment, the inner rings 11 and 21 are rotated around the shaft together with the shaft 31 of the rolling bearing device assembly 1A (step SA1), and the inner ring 21 is moved in the axial direction. Pushing (step SC1), the CPU 51 starts counting C2 (step SC2).

  The CPU 51 calculates a first torque measurement value based on the torque output signal input from the load cell 49 via the first low-pass filter 57A and the AD converter 57A (step SC3), and the calculated first torque measurement value is It is determined whether or not the third threshold is exceeded (step SC4).

  When it is determined that the first torque measurement value does not exceed the third threshold value, the CPU 51 calculates the additional push amount based on the calculated first torque measurement value and the third threshold value (step SC5), and temporarily pushes Returning to the process (step SC1).

  On the other hand, if it is determined that the first measured torque value exceeds the third threshold value, the CPU 51 stops increasing the drive voltage applied to the actuator 47, and the inner ring pusher 45 pushes the inner ring 21 at that position. (Step SC6). And as shown in FIG. 15, it waits until the time constant of the 2nd low-pass filter 57B passes in the state (step SC7). In FIG. 15, the vertical axis represents torque and voltage, and the horizontal axis represents time. Further, symbol m represents a first torque measurement value, symbol n represents a second torque measurement value, and symbol p represents a drive voltage applied to the actuator 47.

  In this state, when the time constant of the second low-pass filter 57B elapses, the CPU 51 outputs a command value for restarting driving, drives the actuator 47 via the AD converter 52 and the amplifier 53, and the inner ring pusher 45 drives the inner ring 21. Is pushed again in the axial direction (step SA2), and the same processes as those after step SA2 of the third embodiment are performed.

  As described above, according to the manufacturing method of the rolling bearing device according to the present embodiment, the time required for the pressing step (step SA2) can be shortened by the temporary pressing step (step SC1) with a short control cycle. Further, even when a time delay occurs in the cutoff of the high frequency component by the second low-pass filter 57B due to a steep torque change in the temporary pushing process, the second torque measurement value and the first torque measurement value are obtained by the standby process (step SC2). The effect of the time difference that occurs during Accordingly, in the pushing process, the second torque measurement value at which the high-frequency component is blocked by the second low-pass filter 57B is made to substantially coincide with the original torque value, and the torque variation does not occur erroneously in the determination process (step SA4). A small number of rolling bearing devices 1 can be manufactured.

This embodiment can be modified as follows.
In the present embodiment, the standby process (step SC2) waits while the inner ring 21 pushed in by the temporary pushing process (step SC1) is maintained in that position. As a sixth modification, for example, The pushing force applied to the inner ring 21 in the temporary pushing process SC1 may be released before the waiting process SC6. In this case, as shown in FIG. 16, the CPU 51 may reduce the drive voltage applied to the actuator 47 to about 90% and slightly return the elongation of the actuator 47.

  Here, when the inner ring 21 is pushed in in the press-fitted state in the temporary pushing step (step SC1), distortion occurs in the shaft receiver 41 of the manufacturing apparatus 100 that fixes the inner rings 11 and 21, and the standby due to the influence of the distortion of the manufacturing apparatus 100. During the process (step SC2), the inner ring 21 may be further pushed in the axial direction to increase the torque.

  According to the present modification, the pushing force applied to the inner ring 21 by the temporary pushing process is released before the waiting process before the waiting process, so that the influence of the distortion generated in the manufacturing apparatus 100 is alleviated, and the inner ring during the waiting process is reduced. 21 can be prevented from being pushed. This can prevent the torque from exceeding the target value during the standby process.

  Also in the present embodiment and the sixth modification, as in the second modification, the first high-frequency cutoff unit and the second high-frequency cutoff unit are replaced with the first low-pass filter 57A and the second low-pass filter 57B. The first low-pass filter and the second low-pass filter (both not shown) that perform the calculation of the averaging process may be used.

  As mentioned above, although each embodiment of this invention and its modification were explained in full detail with reference to drawings, the concrete structure is not restricted to these embodiment, The design of the range which does not deviate from the summary of this invention Changes are also included. For example, the present invention is not limited to those applied to the above-described embodiments and modifications, but may be applied to embodiments in which these embodiments and modifications are appropriately combined, and is not particularly limited. Absent. For example, in the second to fourth embodiments, an adhesive application step may be included, or a laser welding step may be included.

  Also, for example, rotate the outer ring, push the outer ring in the direction in which the outer rings are close to each other in the axial direction, and measure the torque transmitted from the outer ring to the inner ring when rotating with respect to the inner ring while the outer ring is pushed. You may take the method to do. In addition, an example in which two rolling bearings are configured by two inner rings and two outer rings that are arranged coaxially with an interval in the axial direction has been shown. However, two inner rings or two outer rings and a spacer member are integrated. The structure, that is, the structure in which either the inner ring or the outer ring is formed of a single member and has two race rings also corresponds to the “two rolling bearings arranged coaxially” of the present invention.

DESCRIPTION OF SYMBOLS 1 Rolling bearing apparatus 1A Rolling bearing apparatus assembly 10 1st rolling bearing (rolling bearing)
11, 21 Inner ring 13, 23 Outer ring 15, 25 Rolling element 20 Second rolling bearing (rolling bearing)
31 Shaft (shaft member)
37 Adhesive 49 Load cell 57A First low-pass filter (first high-frequency cutoff unit)
57B Second low-pass filter (second high-frequency cutoff unit)
SA1 rotation process (step SA1)
SA2 indentation process (step SA2)
SA3 measurement value calculation step (step SA3)
SA4 determination step (step SA4)
SB3 1st calculation process SB7 2nd calculation process SC1 Temporary pushing process SC2 Standby process

Claims (19)

A rotating step of rotating the inner ring around an axis with respect to an outer ring of a rolling bearing assembly in which a shaft member is fitted in an inner ring of two rolling bearings arranged coaxially with an interval in the axial direction; ,
A pushing process of pushing the inner ring rotated with respect to the outer ring in the rotating process in a direction in which the inner rings are close to each other in the axial direction;
When the inner ring is rotated with respect to the outer ring while being pushed by the pushing step, torque transmitted from the inner ring to the outer ring is measured by a load cell, and the following relational expressions (1) and (2) are satisfied. The first high-frequency component is cut off by the first high-frequency cut-off unit having the cut-off frequency, and the high-frequency component is cut off by the second high-frequency cut-off unit having the cut-off frequency satisfying the following relational expressions (1) and (3). A measured value calculating step for calculating the measured second torque value;
It is determined whether or not the first torque measurement value, the second torque measurement value, and the target value calculated by the measurement value calculation step satisfy the following relational expressions (4), (5), and (6): A determination step,
When it is determined by the determination step that any one of the relational expressions (4), (5), and (6) is satisfied, the rotation of the inner ring by the rotation step and the rotation of the inner ring by the pushing step are performed. When it is determined that all of the relational expressions (4), (5), and (6) are not satisfied, the first torque measurement value, the second torque measurement value, and the target value are terminated. A method of manufacturing a rolling bearing device that calculates an additional push amount for further pushing the inner ring on the basis of the above and returns to the push step.
F1> F2 (1)
F1 <R / 0.84 (2)
F2 <R / 60 (3)
TA2> TG0 (4)
TA1> TG0 and TA2> TG2 (5)
TA1> TG1 (6)
Here, F1 is the cutoff frequency (Hz) of the first high-frequency cutoff unit, F2 is the cutoff frequency (Hz) of the second high-frequency cutoff unit, R is the rotational speed (rpm) of the rolling bearing, TA1 is the first torque measurement value, TA2 is a second torque measurement value, TG0 is a target value, TG1 is a predetermined first threshold value larger than the target value, and TG2 is a predetermined second threshold value smaller than the target value. A rotating step of rotating the outer ring around an axis with respect to an inner ring of a rolling bearing assembly in which a shaft member is fitted in an outer ring of two rolling bearings arranged coaxially with an interval in the axial direction; ,
A pushing process of pushing the outer ring rotated with respect to the inner ring in the rotating process in a direction in which the outer rings are close to each other in the axial direction;
When the outer ring is rotated with respect to the inner ring while being pushed by the pushing step, the torque transmitted from the outer ring to the inner ring is measured by a load cell, and the following relational expressions (1) and (2) are satisfied. The first high-frequency component is cut off by the first high-frequency cut-off unit having the cut-off frequency, and the high-frequency component is cut off by the second high-frequency cut-off unit having the cut-off frequency satisfying the following relational expressions (1) and (3). A measured value calculating step for calculating the measured second torque value;
It is determined whether or not the first torque measurement value, the second torque measurement value, and the target value calculated by the measurement value calculation step satisfy the following relational expressions (4), (5), and (6): A determination step,
When it is determined by the determination step that any one of the relational expressions (4), (5), and (6) is satisfied, the rotation of the outer ring by the rotation step and the rotation of the outer ring by the pushing step are performed. When it is determined that all of the relational expressions (4), (5), and (6) are not satisfied, the first torque measurement value, the second torque measurement value, and the target value are terminated. A method of manufacturing a rolling bearing device that calculates an additional pushing amount for further pushing the outer ring on the basis of the above and returns to the pushing step.
F1> F2 (1)
F1 <R / 0.84 (2)
F2 <R / 60 (3)
TA2> TG0 (4)
TA1> TG0 and TA2> TG2 (5)
TA1> TG1 (6)
Here, F1 is the cutoff frequency (Hz) of the first high-frequency cutoff unit, F2 is the cutoff frequency (Hz) of the second high-frequency cutoff unit, R is the rotational speed (rpm) of the rolling bearing, TA1 is the first torque measurement value, TA2 is a second torque measurement value, TG0 is a target value, TG1 is a predetermined first threshold value larger than the target value, and TG2 is a predetermined second threshold value smaller than the target value. When the measurement value calculation step has passed the time constant of the first high frequency cutoff unit, the first calculation step of calculating the first torque measurement value and the time constant of the second high frequency cutoff unit have elapsed A second calculation step of calculating the second torque measurement value,
The first calculation step repeats the calculation of the first torque measurement value until the time constant of the second high-frequency cutoff unit has elapsed, and the maximum value among the calculated first torque measurement values is determined in the determination step. The manufacturing method of the rolling bearing apparatus of Claim 1 or Claim 2 used for this.   The rolling bearing device according to claim 1 or 2, wherein the measurement value calculation step calculates the first torque measurement value and the second torque measurement value when a time constant of the first high-frequency cutoff unit has elapsed. Manufacturing method.   Before the pushing step, a temporary pushing step of pushing the inner ring or the outer ring until the first torque measured value calculated by the measured value calculating step exceeds a predetermined third threshold value smaller than the target value; A standby step of waiting until a time equal to or greater than a time constant of the second high-frequency cutoff unit has elapsed while maintaining the position of the inner ring or the outer ring pushed in by the first temporary pushing step. A method for manufacturing the rolling bearing device according to claim. A rotating step of rotating the inner ring around an axis with respect to an outer ring of a rolling bearing assembly in which a shaft member is fitted in an inner ring of two rolling bearings arranged coaxially with an interval in the axial direction; ,
A pushing process of pushing the inner ring rotated with respect to the outer ring in the rotating process in a direction in which the inner rings are close to each other in the axial direction;
When the inner ring is rotated with respect to the outer ring while being pushed by the pushing step, a torque transmitted from the inner ring to the outer ring is measured by a load cell, and the following relational expression (7) The first torque measurement value obtained by averaging the torque of one rotation of the rolling bearing so as to satisfy the above condition, and one rotation of the rolling bearing so as to satisfy the following relational expression (8) by the second high frequency cutoff unit A measurement value calculating step of calculating a second torque measurement value obtained by averaging the torques of
It is determined whether or not the first torque measurement value, the second torque measurement value, and the target value calculated by the measurement value calculation step satisfy the following relational expressions (4), (5), and (6): A determination step,
When it is determined by the determination step that any one of the relational expressions (4), (5), and (6) is satisfied, the rotation of the inner ring by the rotation step and the rotation of the inner ring by the pushing step are performed. When it is determined that all of the relational expressions (4), (5), and (6) are not satisfied, the first torque measurement value, the second torque measurement value, and the target value are terminated. A method of manufacturing a rolling bearing device that calculates an additional push amount for further pushing the inner ring on the basis of the above and returns to the push step.
1 <N1 × S × R × 1.67 (7)
1 <N2 × S × R × 2/60 (8)
TA2> TG0 (4)
TA1> TG0 and TA2> TG2 (5)
TA1> TG1 (6)
Here, S is the sampling period (s) of the output voltage of the load cell, N1 is the number of values (data number) obtained by AD converting the output voltage of the load cell at the sampling period of S by the first high-frequency cutoff unit, and R is The number of rotations (rpm) of the rolling bearing, N2 is the number of values (number of data) obtained by AD conversion of the output voltage of the load cell at the sampling period of S by the second high frequency cutoff unit, TA1 is the first measured torque value, TA2 Is a second measured torque value, TG0 is a target value, TG1 is a predetermined first threshold value larger than the target value, and TG2 is a predetermined second threshold value smaller than the target value. A rotating step of rotating the outer ring about an axis with respect to an inner ring of a rolling bearing assembly in which a shaft member is press-fitted into an inner ring of two rolling bearings arranged coaxially with an interval in the axial direction; ,
A pushing process of pushing the outer ring rotated with respect to the inner ring in the rotating process in a direction in which the outer rings are close to each other in the axial direction;
When the outer ring rotates with respect to the inner ring while being pushed by the pushing step, the torque transmitted from the outer ring to the inner ring is measured by a load cell, and the following relational expression (7) The first torque measurement value obtained by averaging the torque of one rotation of the rolling bearing so as to satisfy the above condition, and one rotation of the rolling bearing so as to satisfy the following relational expression (8) by the second high frequency cutoff unit A measurement value calculating step of calculating a second torque measurement value obtained by averaging the torques of
It is determined whether or not the first torque measurement value, the second torque measurement value, and the target value calculated by the measurement value calculation step satisfy the following relational expressions (4), (5), and (6): A determination step,
When it is determined by the determination step that any one of the relational expressions (4), (5), and (6) is satisfied, the rotation of the outer ring by the rotation step and the rotation of the outer ring by the pushing step are performed. When it is determined that all of the relational expressions (4), (5), and (6) are not satisfied, the first torque measurement value, the second torque measurement value, and the target value are terminated. A method of manufacturing a rolling bearing device that calculates an additional pushing amount for further pushing the outer ring on the basis of the above and returns to the pushing step.
1 <N1 × S × R × 1.67 (7)
1 <N2 × S × R × 2/60 (8)
TA2> TG0 (4)
TA1> TG0 and TA2> TG2 (5)
TA1> TG1 (6)
Here, S is the sampling period (s) of the output voltage of the load cell, N1 is the number of values (data number) obtained by AD converting the output voltage of the load cell at the sampling period of S by the first high-frequency cutoff unit, and R is The number of rotations (rpm) of the rolling bearing, N2 is the number of values (number of data) obtained by AD conversion of the output voltage of the load cell at the sampling period of S by the second high frequency cutoff unit, TA1 is the first measured torque value, TA2 Is a second measured torque value, TG0 is a target value, TG1 is a predetermined first threshold value larger than the target value, and TG2 is a predetermined second threshold value smaller than the target value. The measurement value calculation step calculates the first torque measurement value when the following equation (9) has passed, and calculates the second torque measurement value when the following equation (10) has passed. A second calculating step to
The first calculation step repeats the calculation of the first torque measurement value until the second torque measurement value is measured by the second calculation step, and determines the maximum value among the calculated first torque measurement values. The manufacturing method of the rolling bearing apparatus of Claim 6 or Claim 7 used for the said determination of a process.
S × N1 (9)
S × N2 (10) The method for manufacturing a rolling bearing device according to claim 6 or 7, wherein the measurement value calculation step calculates the first torque measurement value and the second torque measurement value when the following expression (9) has passed.
S × N1 (9)   Before the pushing step, a temporary pushing step of pushing the inner ring or the outer ring until the first torque measured value calculated by the measured value calculating step exceeds a predetermined third threshold value smaller than the target value; The rolling according to claim 5, further comprising a standby step of waiting until the second torque measurement value is measured by the second calculation step while maintaining the position of the inner ring or the outer ring pushed by the first temporary pushing step. Manufacturing method of bearing device.   The rotation process according to claim 5 or 10, wherein the rotation step makes a rotation number for rotating the inner ring or the outer ring during the temporary pressing step larger than a rotation number for rotating the inner ring or the outer ring during the pressing step. A method of manufacturing a rolling bearing device.   The method for manufacturing a rolling bearing device according to claim 5, wherein the pushing force applied to the inner ring or the outer ring by the temporary pushing step is released before the waiting step. The method for manufacturing a rolling bearing device according to any one of claims 1 to 12, wherein a pushing amount for pushing the inner ring or the outer ring through the pushing step is calculated by the following equation.
ΔV = A × (TG0−TA)
V _n = V _n-1 + ΔV
ΔV = 0 when ΔV <0
Here, ΔV is the inner ring pushing amount, A is a predetermined coefficient, and TA is the larger of the first torque measurement value and the second torque measurement value.   The method for manufacturing a rolling bearing device according to any one of claims 1 to 13, further comprising an adhesive applying step of applying an adhesive between the inner ring or the outer ring and the shaft member before the rotating step.   A welding step in which the inner ring or the outer ring pushed in the axial direction and the shaft member are laser-welded after the rotation of the inner ring or the outer ring in the rotation step and the pushing of the inner ring or the outer ring in the pushing step are completed. The manufacturing method of the rolling bearing apparatus in any one of Claims 1-13 containing. Rotating means for rotating the inner ring around an axis with respect to an outer ring of a rolling bearing assembly in which a shaft member is press-fitted into an inner ring of two rolling bearings arranged coaxially with an interval in the axial direction. ,
A pushing means for pushing the inner ring rotated with respect to the outer ring by the rotating means in a direction in which the inner rings are close to each other in the axial direction;
When the inner ring is rotated with respect to the outer ring while being pushed by the pushing means, torque transmitted from the inner ring to the outer ring is measured by a load cell, and the following relational expressions (1) and (2) are satisfied. The first high-frequency component is cut off by the first high-frequency cut-off unit having the cut-off frequency, and the high-frequency component is cut off by the second high-frequency cut-off unit having the cut-off frequency satisfying the following relational expressions (1) and (3). Torque measurement value calculation means for calculating the second measured torque value,
It is determined whether or not the first torque measurement value, the second torque measurement value and the target value calculated by the torque measurement value calculation means satisfy the following relational expressions (4), (5) and (6): Determination means for
When it is determined by the determination means that any one of the relational expressions (4), (5), and (6) is satisfied, the rotation of the inner ring by the rotation means and the rotation of the inner ring by the pushing means are performed. When it is determined that all of the relational expressions (4), (5), and (6) are not satisfied, the first torque measurement value, the second torque measurement value, and the target value are terminated. An additional push-in amount for further pushing the inner ring on the basis of the above, and a device for manufacturing a rolling bearing device in which the push-in means pushes the inner ring.
F1> F2 (1)
F1 <R / 0.84 (2)
F2 <R / 60 (3)
TA2> TG0 (4)
TA1> TG0 and TA2> TG2 (5)
TA1> TG1 (6)
Here, F1 is the cutoff frequency (Hz) of the first high-frequency cutoff unit, F2 is the cutoff frequency (Hz) of the second high-frequency cutoff unit, R is the rotational speed (rpm) of the rolling bearing, TA1 is the first torque measurement value, TA2 is a second torque measurement value, TG0 is a target value, TG1 is a predetermined first threshold value larger than the target value, and TG2 is a predetermined second threshold value smaller than the target value. Rotating means for rotating the outer ring around its axis with respect to the inner ring of the rolling bearing assembly in which a shaft member is fitted in an outer ring of two rolling bearings arranged coaxially with an interval in the axial direction. ,
Pushing means for pushing the outer ring rotated by the rotating means with respect to the inner ring in a direction in which the outer rings are close to each other in the axial direction;
When the outer ring is rotated with respect to the inner ring while being pushed by the pushing means, the torque transmitted from the outer ring to the inner ring is measured by a load cell, and the following relational expressions (1) and (2) are satisfied. The first high-frequency component is cut off by the first high-frequency cut-off unit having the cut-off frequency, and the high-frequency component is cut off by the second high-frequency cut-off unit having the cut-off frequency satisfying the following relational expressions (1) and (3). Torque measurement value calculation means for calculating the second measured torque value,
It is determined whether or not the first torque measurement value, the second torque measurement value and the target value calculated by the torque measurement value calculation means satisfy the following relational expressions (4), (5) and (6): Determination means for
When the determination means determines that any one of the relational expressions (4), (5), and (6) is satisfied, the rotation of the outer ring by the rotation means and the rotation of the outer ring by the pushing means are performed. When it is determined that all of the relational expressions (4), (5), and (6) are not satisfied, the first torque measurement value, the second torque measurement value, and the target value are terminated. Based on the above, an additional pushing amount for pushing the outer ring further is calculated, and the pushing means pushes the outer ring into the rolling bearing device manufacturing apparatus.
F1> F2 (1)
F1 <R / 0.84 (2)
F2 <R / 60 (3)
TA2> TG0 (4)
TA1> TG0 and TA2> TG2 (5)
TA1> TG1 (6)
Here, F1 is the cutoff frequency (Hz) of the first high-frequency cutoff unit, F2 is the cutoff frequency (Hz) of the second high-frequency cutoff unit, R is the rotational speed (rpm) of the rolling bearing, TA1 is the first torque measurement value, TA2 is a second torque measurement value, TG0 is a target value, TG1 is a predetermined first threshold value larger than the target value, and TG2 is a predetermined second threshold value smaller than the target value. Rotating means for rotating the inner ring around an axis with respect to an outer ring of a rolling bearing assembly in which a shaft member is press-fitted into an inner ring of two rolling bearings arranged coaxially with an interval in the axial direction. ,
A pushing means for pushing the inner ring rotated with respect to the outer ring by the rotating means in a direction in which the inner rings are close to each other in the axial direction;
When the inner ring is rotated with respect to the outer ring while being pushed by the pushing means, torque transmitted from the inner ring to the outer ring is measured by a load cell, and the following relational expression (7) The first torque measurement value obtained by averaging the torque of one rotation of the rolling bearing so as to satisfy the above condition, and one rotation of the rolling bearing so as to satisfy the following relational expression (8) by the second high frequency cutoff unit Torque measurement value calculation means for calculating a second torque measurement value obtained by averaging the torques of
It is determined whether or not the first torque measurement value, the second torque measurement value and the target value calculated by the torque measurement value calculation means satisfy the following relational expressions (4), (5) and (6): Determination means for
When it is determined by the determination means that any one of the relational expressions (4), (5), and (6) is satisfied, the rotation of the inner ring by the rotation means and the rotation of the inner ring by the pushing means are performed. When it is determined that all of the relational expressions (4), (5), and (6) are not satisfied, the first torque measurement value, the second torque measurement value, and the target value are terminated. Based on the above, an additional pushing amount for pushing the inner ring further is calculated, and the pushing means pushes the inner ring into the rolling bearing device manufacturing apparatus.
1 <N1 × S × R × 1.67 (7)
1 <N2 × S × R × 2/60 (8)
TA2> TG0 (4)
TA1> TG0 and TA2> TG2 (5)
TA1> TG1 (6)
Here, S is the sampling period (s) of the output voltage of the load cell, N1 is the number of values (data number) obtained by AD converting the output voltage of the load cell at the sampling period of S by the first high-frequency cutoff unit, and R is The number of rotations (rpm) of the rolling bearing, N2 is the number of values (number of data) obtained by AD conversion of the output voltage of the load cell at the sampling period of S by the second high frequency cutoff unit, TA1 is the first measured torque value, TA2 Is a second measured torque value, TG0 is a target value, TG1 is a predetermined first threshold value larger than the target value, and TG2 is a predetermined second threshold value smaller than the target value. Rotating means for rotating the outer ring around its axis with respect to the inner ring of the rolling bearing assembly in which a shaft member is fitted in an outer ring of two rolling bearings arranged coaxially with an interval in the axial direction. ,
Pushing means for pushing the outer ring rotated by the rotating means with respect to the inner ring in a direction in which the outer rings are close to each other in the axial direction;
When the outer ring is rotated with respect to the inner ring while being pushed by the pushing means, torque transmitted from the outer ring to the inner ring is measured by a load cell, and the following relational expression (7) The first torque measurement value obtained by averaging the torque of one rotation of the rolling bearing so as to satisfy the above condition, and one rotation of the rolling bearing so as to satisfy the following relational expression (8) by the second high frequency cutoff unit Torque measurement value calculation means for calculating a second torque measurement value obtained by averaging the torques of
It is determined whether or not the first torque measurement value, the second torque measurement value and the target value calculated by the torque measurement value calculation means satisfy the following relational expressions (4), (5) and (6): Determination means for
When the determination means determines that any one of the relational expressions (4), (5), and (6) is satisfied, the rotation of the outer ring by the rotation means and the rotation of the outer ring by the pushing means are performed. When it is determined that all of the relational expressions (4), (5), and (6) are not satisfied, the first torque measurement value, the second torque measurement value, and the target value are terminated. An additional push-in amount for further pushing the inner ring on the basis of the above, and a device for manufacturing a rolling bearing device in which the push-in means pushes the inner ring.
1 <N1 × S × R × 1.67 (7)
1 <N2 × S × R × 2/60 (8)
TA2> TG0 (4)
TA1> TG0 and TA2> TG2 (5)
TA1> TG1 (6)
Here, S is the sampling period (s) of the output voltage of the load cell, N1 is the number of values (data number) obtained by AD converting the output voltage of the load cell at the sampling period of S by the first high-frequency cutoff unit, and R is The number of rotations (rpm) of the rolling bearing, N2 is the number of values (number of data) obtained by AD conversion of the output voltage of the load cell at the sampling period of S by the second high frequency cutoff unit, TA1 is the first measured torque value, TA2 Is a second measured torque value, TG0 is a target value, TG1 is a predetermined first threshold value larger than the target value, and TG2 is a predetermined second threshold value smaller than the target value.

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