Phase adjustment method for rolling bearing assembly

Abstract

The present invention provides a phase adjustment method for rolling bearing assembly, which includes measuring the roundness of the bearing inner ring, the bearing outer ring, the main shaft and the bearing seat in sequence, and fitting the obtained measurement data in sequence to obtain simulated circles of the bearing inner ring, the bearing outer ring, the main shaft and the bearing seat, comparing the simulated circle of the bearing inner ring with the simulated circle of the main shaft to obtain a first phase; analyzing the change of the bearing contact load between the bearing rolling element and the bearing inner ring as the data of the first phase changes, and then determining the optimal value of the first phase; comparing the simulated circle of the bearing outer ring with the simulated circle of the bearing seat to obtain a second phase; analyzing the change of the bearing contact load between the bearing rolling element and the bearing outer ring as the data of the second phase changes, and then determining the optimal value of the second phase; assembling the bearing according to the data of the optimal first phase and the optimal second phase. The present invention has the advantages of reducing the uneven distribution of the bearing contact load and the vibration of the bearing system.

Description

Technical Field

[0001] The present invention relates to the field of bearing assembly, and in particular to a phase adjustment method for rolling bearing assembly. Background Art

[0002] Rolling bearings generally consist of an inner ring, an outer ring, a cage, and rolling elements. They are precision mechanical components that convert sliding friction between a rotating shaft and its seat into rolling friction, thereby reducing friction losses. The inner ring mates with the shaft and rotates with it; the outer ring mates with the bearing seat and provides support; and the rolling elements are evenly distributed between the inner and outer rings by the cage. Bearing assembly is a crucial step in the production of mechanical equipment. Its quality directly affects the equipment's rotational accuracy and stability, and can even lead to equipment failure and accidents.

[0003] The assembly of bearings in the prior art, such as Chinese patent CN110103004B, discloses a bearing assembly device and method, comprising: fixing a first locating seat to a first end face of a housing with a first fastener, and placing the first locating seat in the housing; placing a core shaft into a second locating seat; mounting the bearing to the core shaft, and fitting the second end face of the bearing to the end face of the second locating seat; mounting the second locating seat, core shaft, and bearing to the housing, so that the bearing is located in an axial mounting position of the bearing, and the first end face of the bearing fits to the end face of the first locating seat, and fixing the second locating seat to the second end face of the housing with a second fastener; removing the first fastener and the first locating seat; and installing the shaft from the first end face of the housing, installing the front part of the shaft into the inner hole of the core shaft, and installing the shaft neck into the bearing along the axial direction to complete the assembly of the shaft and the bearing. The above-mentioned bearing assembly device and method assemble the bearings by using a bearing assembly device, thereby reducing the risk of bearing assembly quality. However, during the processing of the rolling bearing, the bearing may become elliptical due to uneven forces applied to the bearing during processing or insufficient processing accuracy of the workpiece, thereby reducing the assembly accuracy of the bearing and uneven distribution of the contact load of the bearing, thereby reducing the vibration and stability of the bearing system. Summary of the Invention

[0004] Based on this, in order to solve the problem of reduced bearing assembly accuracy and uneven distribution of bearing contact load, thereby reducing the vibration and stability of the bearing system, the present invention provides a phase adjustment method for rolling bearing assembly, the specific technical solution of which is as follows:

[0005] A phase adjustment method for rolling bearing assembly, comprising the following steps:

[0006] S1. Measure the roundness of the bearing inner ring, bearing outer ring, main shaft and bearing seat in sequence, and fit the obtained measurement data in sequence to obtain the simulated circles of the bearing inner ring, bearing outer ring, main shaft and bearing seat;

[0007] S2. Compare the simulated circle of the bearing inner ring with the simulated circle of the main shaft to obtain a first phase;

[0008] S3. Testing the change in the bearing contact load between the bearing rolling elements and the bearing inner ring of the rolling bearing at different first phases for multiple bearing rolling elements, plotting the relationship curve between the bearing rolling element and the bearing contact load at different first phases, and taking the first phase corresponding to the most stable change in the bearing contact load as the optimal first phase value;

[0009] S4, comparing the simulated circle of the bearing outer ring with the simulated circle of the bearing seat to obtain a second phase;

[0010] S5. Test the change of the bearing contact load between the bearing rolling elements and the bearing outer ring of the rolling bearing at different second phases for multiple bearing rolling elements, draw the relationship curve between the bearing rolling element and the bearing contact load at different second phases, and take the second phase corresponding to the most stable change of the bearing contact load as the optimal second phase value;

[0011] S6. Assemble the bearing according to the data of the best first phase and the best second phase obtained in S3 and S5.

[0012] The above-mentioned phase adjustment method for rolling bearing assembly detects the roundness of the bearing inner ring, bearing outer ring, main shaft and bearing seat, and then fits to form corresponding simulated circles. Then, the optimal first phase when the bearing inner ring and the main shaft are installed is obtained by analyzing and comparing the simulated circle of the bearing inner ring and the simulated circle of the main shaft. Similarly, the optimal second phase when the bearing outer ring and the bearing seat are installed is obtained by analyzing and comparing the simulated circle of the bearing outer ring and the simulated circle of the bearing seat. The assembly of the bearing follows the optimal first phase and second phase, thereby reducing the uneven distribution of the bearing contact load and the vibration of the bearing system, thereby improving the safety and service life of the equipment.

[0013] Furthermore, the measurement data includes a roundness diagram and runout;

[0014] The highest point of the runout is the major axis of the simulated circle obtained by fitting.

[0015] Furthermore, in step S1, the measurement of the bearing inner ring includes the following steps:

[0016] S111, fixing the bearing outer ring;

[0017] S112. Fix the sensor to the inner ring of the bearing, and apply an axial load to the inner ring of the bearing through a pressure assembly;

[0018] S113 , rotating the inner ring of the bearing, and obtaining the measurement data through detection by the sensor.

[0019] Furthermore, in step S1, the measurement of the bearing outer ring includes the following steps:

[0020] S121, fixing the bearing inner ring;

[0021] S122. Fix the sensor to the outer ring of the bearing, and apply an axial load to the outer ring of the bearing through a pressure assembly;

[0022] S123 , rotating the outer ring of the bearing, and obtaining the measurement data through detection by the sensor.

[0023] Furthermore, in step S1, the measurement of the main shaft includes the following steps:

[0024] S131, respectively mounting the two ends of the main shaft on two third mounting supports arranged opposite to each other;

[0025] S132. Fix the sensor at a position where the main shaft and the inner ring of the bearing cooperate with each other;

[0026] S133 , rotating the main shaft, and obtaining the measurement data through detection by the sensor.

[0027] Furthermore, in step S1, the measurement of the bearing seat includes the following steps:

[0028] S141. Fix the bearing seat to the rotating platform, aligning the center of the bearing seat with the center of the rotating platform;

[0029] S142. Fix the sensor at the position where the bearing seat and the bearing outer ring cooperate with each other;

[0030] S143. The rotating table rotates to drive the bearing seat, and the sensor detects and obtains the measurement data.

[0031] Furthermore, in step S2, the first phase is the angle between the major axis of the simulated circle of the bearing inner ring and the major axis of the simulated circle of the main shaft;

[0032] In the step S4, the second phase is the angle between the major axis of the simulated circle of the bearing outer ring and the major axis of the simulated circle of the bearing seat.

[0033] Furthermore, in the step S3, the optimal first phase is 0°;

[0034] In step S5, the optimal second phase is 0°.

[0035] Furthermore, in step S6, the bearing assembly process includes the following steps:

[0036] S61, sleeve the bearing on the main shaft so that the first phase is 0°;

[0037] S62. Install the bearing seat and the bearing so that the second phase is 0°. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] The present invention can be further understood from the following description in conjunction with the accompanying drawings. The components in the figures are not necessarily drawn to scale, but rather the emphasis is placed on illustrating the principles of the embodiments. In different views, the same reference numerals designate corresponding parts.

[0039] Figure 1 is a method flow chart of a phase adjustment method for rolling bearing assembly according to an embodiment of the present invention;

[0040] Figure 2 1 is a schematic structural diagram of roundness detection of a bearing inner ring in a phase adjustment method for rolling bearing assembly according to an embodiment of the present invention;

[0041] Figure 3 1 is a schematic structural diagram of roundness detection of a bearing outer ring in a phase adjustment method for rolling bearing assembly according to an embodiment of the present invention;

[0042] Figure 4 1. It is a structural schematic diagram of the roundness detection of the main shaft of the phase adjustment method for rolling bearing assembly according to one embodiment of the present invention;

[0043] Figure 5 1. It is a structural schematic diagram of roundness detection of a bearing seat in a phase adjustment method for rolling bearing assembly according to an embodiment of the present invention;

[0044] Figure 6 is a phase diagram of a first phase or a second phase of a phase adjustment method for rolling bearing assembly according to an embodiment of the present invention;

[0045] Figure 7 1. A diagram showing changes in contact load between a rolling element and an inner ring of a bearing at different first phases of a phase adjustment method for assembling a rolling bearing according to an embodiment of the present invention;

[0046] Figure 8 This is a diagram showing changes in contact load between a bearing rolling element and a bearing outer ring at different second phases of a phase adjustment method for rolling bearing assembly according to an embodiment of the present invention.

[0047] Description of reference numerals:

[0048] 1-bearing inner ring, 11-second mounting support; 2-bearing outer ring, 21-first mounting support; 3-spindle, 31-third mounting support; 4-bearing seat, 41-rotating table; 5-bearing rolling element; 6-sensor. DETAILED DESCRIPTION

[0049] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with its embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and do not limit the scope of protection of the present invention.

[0050] It should be noted that when an element is referred to as being "fixed to" another element, it may be directly attached to the other element or there may be an intermediate element. When an element is referred to as being "connected to" another element, it may be directly connected to the other element or there may be an intermediate element. The terms "vertical," "horizontal," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only implementation methods.

[0051] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the art to which this invention pertains. The terms used herein in the specification of the present invention are for the purpose of describing specific embodiments only and are not intended to limit the present invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0052] The "first" and "second" in the present invention do not represent specific quantities and orders, but are only used to distinguish names.

[0053] like Figure 1-8 As shown, a phase adjustment method for rolling bearing assembly in one embodiment of the present invention includes the following steps:

[0054] S1. Measure the roundness of the bearing inner ring 1, the bearing outer ring 2, the main shaft 3, and the bearing seat 4 in sequence, and fit the obtained measurement data in sequence to obtain the simulated circles of the bearing inner ring 1, the bearing outer ring 2, the main shaft 3, and the bearing seat 4;

[0055] S2. Compare the simulated circle of the bearing inner ring 1 with the simulated circle of the main shaft 3 to obtain a first phase;

[0056] S3. Testing the change in the bearing contact load between the bearing rolling elements and the bearing inner ring of the rolling bearing at different first phases for multiple bearing rolling elements, plotting the relationship curve between the bearing rolling element and the bearing contact load at different first phases, and taking the first phase corresponding to the most stable change in the bearing contact load as the optimal first phase value;

[0057] S4, comparing the simulated circle of the bearing outer ring 2 with the simulated circle of the bearing seat 4 to obtain a second phase;

[0058] S5. Test the change of the bearing contact load between the bearing rolling elements and the bearing outer ring of the rolling bearing at different second phases for multiple bearing rolling elements, draw the relationship curve between the bearing rolling element and the bearing contact load at different second phases, and take the second phase corresponding to the most stable change of the bearing contact load as the optimal second phase value;

[0059] S6. Assemble the bearing according to the data of the best first phase and the best second phase obtained in S3 and S5.

[0060] The above-mentioned phase adjustment method for assembling a rolling bearing comprises a bearing inner ring 1, a bearing outer ring 2, and bearing rolling elements 5. Multiple bearing rolling elements 5 are evenly distributed between the bearing inner ring 1 and the bearing outer ring 2. During the bearing assembly process, it also usually includes a main shaft 3 and a bearing seat 4. The rolling bearing is sleeved on the main shaft 3 to reduce friction and wear during the rotation of the main shaft 3. The rolling bearing is installed on the bearing seat 4, and the bearing seat 4 supports the rolling bearing. The lower the bearing contact load of the bearing rolling element 5, the higher the rotation accuracy and stability of the main shaft 3. Therefore, in the present invention, the roundness of the bearing inner ring 1, the bearing outer ring 2, the main shaft 3 and the bearing seat 4 is detected, and then the corresponding simulation circles are formed by fitting. Then, the simulation circle of the bearing inner ring 1 and the simulation circle of the main shaft 3 are analyzed and compared to obtain the optimal first phase when the bearing inner ring 1 and the main shaft 3 are installed. Similarly, the simulation circle of the bearing outer ring 2 and the simulation circle of the bearing seat 4 are obtained and analyzed and compared to obtain the optimal second phase when the bearing outer ring 2 and the bearing seat 4 are installed. The assembly of the bearing follows the optimal first phase and second phase, thereby reducing the uneven distribution of the bearing contact load and the vibration of the bearing system, thereby improving the safety and service life of the equipment.

[0061] In one embodiment, the measurement data includes a roundness diagram and a runout; the highest point of the runout is the major axis of the simulated circle obtained by fitting.

[0062] Specifically, the roundness of the bearing inner ring 1 is measured to obtain a roundness diagram and runout of the bearing inner ring 1. Then, based on the highest point of the runout, a simulated circle that matches the bearing inner ring 1 is obtained through data fitting. It is worth noting that the highest point of the runout of the bearing inner ring 1 is the major axis of the fitted simulated circle of the bearing inner ring 1. Similarly, the method for fitting the simulated circle formed by the bearing outer ring 2, bearing seat 4, and spindle 3 is consistent with the method for fitting the bearing inner ring 1.

[0063] In one embodiment, in step S1, the measurement of the bearing inner ring 1 includes the following steps:

[0064] S111, fixed bearing outer ring 2;

[0065] S112, fixing the sensor 6 to the bearing inner ring 1, and applying an axial load to the bearing inner ring 1 through a pressure assembly;

[0066] S113 , rotating the bearing inner ring 1 , and obtaining measurement data through detection by the sensor 6 .

[0067] Specifically, such as Figure 2 As shown, the measurement of the bearing inner ring 1 is provided with a first mounting support 21, and the first mounting support 21 is in the shape of a circular cylinder. The top of the inner wall of the circular cylinder is provided with a first mounting groove adapted to the bearing outer ring 2. The bearing outer ring 2 is clamped in the first mounting groove, thereby keeping the bearing outer ring 2 stationary. When measuring the roundness of the bearing inner ring 1, a stable central axial load is applied to the bearing inner ring 1 by setting a pressure component, and then the bearing inner ring 1 is rotated. During the rotation process, the sensor 6 fixed to the bearing inner ring 1 detects the roundness diagram and runout of the bearing inner ring 1, records the highest point of the runout, and then obtains the simulated circle of the bearing inner ring 1 through data fitting.

[0068] In one embodiment, in step S1, the measurement of the bearing outer ring 2 includes the following steps:

[0069] S121, fixed bearing inner ring 1;

[0070] S122, fixing the sensor 6 to the bearing outer ring 2, and applying an axial load to the bearing outer ring 2 through a pressure assembly;

[0071] S123 , rotating the bearing outer ring 2 , and obtaining measurement data through detection by the sensor 6 .

[0072] Specifically, such as Figure 3 As shown, a second mounting support 11 is provided for measuring the bearing outer ring 2. The second mounting support 11 is in the shape of a cylinder. A second mounting groove adapted to the bearing inner ring 1 is provided on the top of the cylinder. The bearing inner ring 1 is clamped in the second mounting groove, thereby keeping the bearing inner ring 1 stationary. When measuring the roundness of the bearing outer ring 2, a stable central axial load is applied to the bearing outer ring 2 by setting a pressure component, and then the bearing outer ring 2 is rotated. During the rotation, the sensor 6 fixed to the bearing outer ring 2 detects the roundness diagram and runout of the bearing outer ring 2, records the highest point of the runout, and then obtains the simulated circle of the bearing outer ring 2 through data fitting.

[0073] In one embodiment, in step S1, the measurement of the main shaft 3 includes the following steps:

[0074] S131, respectively mounting the two ends of the main shaft 3 on two oppositely arranged third mounting supports 31;

[0075] S132, fixing the sensor 6 at the position where the main shaft 3 and the bearing inner ring 1 cooperate with each other;

[0076] S133 , rotating the main shaft 3 and obtaining measurement data through detection by the sensor 6 .

[0077] Specifically, such as Figure 4 As shown, spindle 3 is measured using a third mounting bracket 31. Two third mounting brackets 31 are positioned opposite each other, each with a V-shaped groove at its top. The ends of spindle 3 are mounted on the V-shaped grooves, which facilitate rotation of spindle 3. When measuring the roundness of spindle 3, spindle 3 is rotated. During this rotation, sensor 6 at the point where spindle 3 meets bearing inner ring 1 detects the roundness diagram and runout of spindle 3. The highest point of the runout is recorded, and then a simulated circle of spindle 3 is obtained through data fitting.

[0078] In one embodiment, in step S1, measuring the bearing seat 4 includes the following steps:

[0079] S141, fixing the bearing seat 4 to the rotating platform 41, aligning the center of the bearing seat 4 with the center of the rotating platform 41;

[0080] S142, fixing the sensor 6 at the position where the bearing seat 4 and the bearing outer ring 2 cooperate with each other;

[0081] S143 , the rotating platform 41 rotates to drive the bearing seat 4 , and the sensor 6 detects and obtains measurement data.

[0082] Specifically, such as Figure 5 As shown, the measurement of the bearing seat 4 is provided with a rotating table 41, which is used to fix the bearing seat 4. The bearing seat 4 rotates with the rotation of the rotating table 41, and the rotation center of the bearing seat 4 corresponds to the rotation center of the rotating table 41, ensuring the stability of the rotation of the bearing seat 4. During the rotation process, the sensor 6 at the fitting position of the bearing seat 4 and the bearing outer ring 2 detects the roundness diagram and runout of the bearing seat 4, records the highest point of the runout, and then obtains the simulated circle of the bearing seat 4 through data fitting.

[0083] In one embodiment, in step S2, the first phase is the angle between the long axis of the simulated circle of the bearing inner ring 1 and the long axis of the simulated circle of the main shaft 3; in step S4, the second phase is the angle between the long axis of the simulated circle of the bearing outer ring 2 and the long axis of the simulated circle of the bearing seat 4.

[0084] Specifically, such as Figure 6As shown, the range of the first phase is 0°-90°. When the long axis of the simulated circle of the bearing inner ring 1 coincides with the long axis of the simulated circle of the main shaft 3, the first phase is 0°. When the long axis of the simulated circle of the bearing inner ring 1 is perpendicular to the length of the simulated circle of the main shaft 3, the first phase is 90°. Similarly, the range of the second phase is 0°-90°. When the long axis of the simulated circle of the bearing outer ring 2 coincides with the long axis of the simulated circle of the bearing seat 4, the second phase is 0°. When the long axis of the simulated circle of the bearing outer ring 2 is perpendicular to the length of the simulated circle of the bearing seat 4, the second phase is 90°.

[0085] In one embodiment, in step S3, the optimal first phase is 0°; in step S5, the optimal second phase is 0°.

[0086] First, the first phase is analyzed to obtain the changes in the bearing contact loads between different bearing rolling elements 5 and the bearing inner ring 1 under different first phases. Specifically, the position of the fitting between the bearing outer ring 2 and the bearing seat 4 remains unchanged under different first phases, that is, the size of the second phase remains unchanged. At the same time, multiple bearing rolling elements 5 in the bearing are numbered and the contact loads of different bearing rolling elements 5 are detected, such as Figure 7 As shown, through multiple experimental studies and comparisons, it was concluded that when the first phase is 0°, the contact load of the different bearing rolling elements 5 is generally the smallest, and the fluctuation of the contact load of the different bearing rolling elements 5 is small. As the phase increases, the contact load of the different bearing rolling elements 5 gradually increases. When the first phase is 90°, the contact load of the different bearing rolling elements 5 is generally the largest. Therefore, when the first phase is 0°, the contact load of the bearing rolling elements 5 is the smallest, and the vibration of the bearing system is the most stable. When the first phase is 90°, the contact load of the bearing rolling elements 5 is the largest, and the vibration stability of the bearing system is the lowest.

[0087] Then, the second phase is analyzed to obtain the changes in the bearing contact loads between different bearing rolling elements 5 and the bearing outer ring 2 under different second phases. Specifically, the position of the fitting point between the bearing inner ring 1 and the main shaft 3 is controlled to remain unchanged under different second phases, that is, the size of the first phase remains unchanged. At the same time, multiple bearing rolling elements 5 in the bearing are numbered, and the contact loads of different bearing rolling elements 5 are detected, such as Figure 8As shown, through multiple experimental studies and comparisons, it was concluded that when the second phase is 0°, the contact load of the different bearing rolling elements 5 is generally the smallest, and the fluctuation of the contact load of the different bearing rolling elements 5 is small. As the phase increases, the contact load of the different bearing rolling elements 5 gradually increases. When the second phase is 90°, the contact load of the different bearing rolling elements 5 is generally the largest. Therefore, when the second phase is 0°, the contact load of the bearing rolling elements 5 is the smallest, and the vibration of the bearing system is the most stable. When the second phase is 90°, the contact load of the bearing rolling elements 5 is the largest, and the vibration stability of the bearing system is the lowest.

[0088] In one embodiment, in step S6, the bearing assembly process includes the following steps:

[0089] S61, installing the bearing sleeve on the main shaft 3 so that the first phase is 0°;

[0090] S62. Install the bearing seat 4 and the bearing so that the second phase is 0°.

[0091] Based on the analysis and comparison of the data of the first phase and the second phase in step S3 and step S5, it is concluded that the optimal values of the first phase and the second phase are both 0°, that is, when the first phase and the second phase are both 0°, the bearing contact load is minimized and the vibration stability of the bearing system is optimal. Therefore, during the assembly process of the bearing, the bearing inner ring 1 and the main shaft 3 are first installed, that is, the bearing is sleeved on the main shaft 3 so that the first phase is 0°, and then the bearing seat 4 and the bearing are installed so that the second phase is 0°.

[0092] The technical features of the above-mentioned embodiments can be combined arbitrarily. In order to make the description concise, not all possible combinations of the technical features in the above-mentioned embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0093] The above-described embodiments merely illustrate several implementations of the present invention, and while their descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent. It should be noted that a person skilled in the art would be able to make numerous variations and improvements without departing from the spirit of the present invention, all of which fall within the scope of protection of the present invention. Therefore, the scope of protection of the patent for this invention shall be determined by the appended claims.

Claims

1. A phase adjustment method for rolling bearing assembly, characterized in that: The following steps are involved: S1. Measure the roundness of the bearing inner ring, bearing outer ring, main shaft and bearing seat in sequence, and fit the obtained measurement data in sequence to obtain the simulated circles of the bearing inner ring, bearing outer ring, main shaft and bearing seat; S2. Compare the simulated circle of the bearing inner ring with the simulated circle of the main shaft to obtain a first phase, where the first phase is the angle between the major axis of the simulated circle of the bearing inner ring and the major axis of the simulated circle of the main shaft; S3. Testing the change in the bearing contact load between the bearing rolling elements and the bearing inner ring of the rolling bearing at different first phases for multiple bearing rolling elements, plotting the relationship curve between the bearing rolling element and the bearing contact load at different first phases, and taking the first phase corresponding to the most stable change in the bearing contact load as the optimal first phase value; S4. Compare the simulated circle of the bearing outer ring with the simulated circle of the bearing seat to obtain a second phase, where the second phase is the angle between the major axis of the simulated circle of the bearing outer ring and the major axis of the simulated circle of the bearing seat; S5. Test the change of the bearing contact load between the bearing rolling elements and the bearing outer ring of the rolling bearing at different second phases for multiple bearing rolling elements, draw the relationship curve between the bearing rolling element and the bearing contact load at different second phases, and take the second phase corresponding to the most stable change of the bearing contact load as the optimal second phase value; S6. Assemble the bearing according to the data of the best first phase and the best second phase obtained in S3 and S5.

2. The phase adjustment method for rolling bearing assembly according to claim 1, characterized in that: The measurement data includes a roundness diagram and runout; The highest point of the runout is the major axis of the simulated circle obtained by fitting.

3. The phase adjustment method for rolling bearing assembly according to claim 1, characterized in that: In step S1, the measurement of the bearing inner ring includes the following steps: S111, fixing the bearing outer ring; S112. Fix the sensor to the inner ring of the bearing, and apply an axial load to the inner ring of the bearing through a pressure assembly; S113 , rotating the inner ring of the bearing, and obtaining the measurement data through detection by the sensor.

4. The phase adjustment method for rolling bearing assembly according to claim 1, characterized in that: In step S1, the measurement of the bearing outer ring includes the following steps: S121, fixing the bearing inner ring; S122. Fix the sensor to the outer ring of the bearing, and apply an axial load to the outer ring of the bearing through a pressure assembly; S123 , rotating the outer ring of the bearing, and obtaining the measurement data through detection by the sensor.

5. The phase adjustment method for rolling bearing assembly according to claim 1, characterized in that: In the step S1, the measurement of the spindle includes the following steps: S131, respectively mounting the two ends of the main shaft on two third mounting supports arranged opposite to each other; S132. Fix the sensor at a position where the main shaft and the inner ring of the bearing cooperate with each other; S133 , rotating the main shaft, and obtaining the measurement data through detection by the sensor.

6. The phase adjustment method for rolling bearing assembly according to claim 1, characterized in that: In step S1, the measurement of the bearing seat includes the following steps: S141. Fix the bearing seat to the rotating platform, aligning the center of the bearing seat with the center of the rotating platform; S142. Fix the sensor at the position where the bearing seat and the bearing outer ring cooperate with each other; S143. The rotating table rotates to drive the bearing seat, and the sensor detects to obtain the measurement data.

7. The phase adjustment method for rolling bearing assembly according to claim 1, characterized in that: In step S3, the optimal first phase is 0°; In step S5, the optimal second phase is 0°.

8. The phase adjustment method for rolling bearing assembly according to claim 7, characterized in that: In step S6, the bearing assembly process includes the following steps: S61, sleeve the bearing on the main shaft so that the first phase is 0°; S62. Install the bearing seat and the bearing so that the second phase is 0°.

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