Automatic ball loading device for double-row bearings

Abstract

The utility model discloses an automatic ball loading device for double-row bearings, which comprises a ball supply part, a fixing part, an isolating part and a transverse pulling part, and the ball supply part is used for supplying rollers into a first groove and a second groove in sequence; the fixing part is used for relatively fixing the outer ring and the inner ring on the bearing table, the isolating part is used for isolating the first groove from the second groove after the number of the rollers in the first groove reaches the preset number, and the transverse pulling part is used for driving the inner ring to transversely move to the second position from the first position. According to the automatic ball loading device for the double-row bearing, through cooperation of the ball supply part, the fixing part, the isolation part and the transverse pulling part, the ball supply part supplies rollers into the first groove firstly, after the rollers in the first groove are loaded to the preset number, the isolation part isolates the first groove from the second groove, and the ball supply part continues to supply the rollers into the second groove; and the transverse pulling part drives the inner ring to transversely move from the first position to the second position until the number of the rollers in the second groove reaches the preset number, so that the multiple rollers are located in the assembling area, and the labor intensity of workers is greatly reduced.

Description

Technical Field

[0001] This utility model belongs to the field of bearing assembly technology, and in particular relates to an automatic ball loading device for double-row bearings. Background Technology

[0002] Double row bearings are widely used in modern industry, playing a crucial role in equipment such as automotive transmissions, motors, and machine tools. They can withstand larger radial loads and a certain amount of axial loads, and compared to single row bearings, they have higher load-bearing capacity and stability, effectively improving the operating efficiency and reliability of equipment.

[0003] Conventional double-row bearings have two rows of grooves. When loading the balls, the rollers need to be accurately placed in the two rows of grooves. Currently, the ball loading of double-row bearings mostly relies on manual operation. In the specific ball loading process, workers need to accurately place the steel balls one by one into the rolling groove between the inner and outer rings of the bearing. At the same time, it is also necessary to ensure that the steel balls in the two rows are evenly distributed and correctly positioned. Obviously, the current manual ball loading has the problem of high labor intensity. Utility Model Content

[0004] The purpose of this invention is to provide an automatic ball loading device for double-row bearings, so as to solve the problem of high labor intensity caused by the conventional manual ball loading method in the prior art.

[0005] To achieve this objective, the present invention adopts the following technical solution:

[0006] An automatic ball loading device for double-row bearings includes a base, a bearing seat, a ball supply section, a fixing section, an isolation section, and a crossbar section, wherein:

[0007] The bearing seat is located on one side of the base, and a bearing platform is provided on the bearing seat. The bearing platform is configured to support a horizontally placed double row bearing to be loaded with balls. The double row bearing includes an inner ring and an outer ring. The inner ring is disposed inside the outer ring. A first groove and a second groove for accommodating rollers are provided side by side along the circumferential direction on the outer surface of the inner ring. The first groove is located below the second groove.

[0008] The ball supply section is disposed on the base, and the ball supply section is configured to sequentially supply rollers into the first groove and the second groove;

[0009] The fixing part is configured to fix the outer ring and the inner ring relative to each other on the bearing platform when the ball supply part loads the balls into the double row bearing. The isolation part is configured to isolate the first groove from the second groove after the rollers in the first groove are loaded to a preset number. The driving end of the lateral pull part is located in the inner hole of the inner ring. The lateral pull part is configured to drive the inner ring to move laterally from the first position to the second position.

[0010] When the inner ring is in the first position, the distance between the first side of the outer edge of the inner ring and the outer ring is greater than the distance between the second side of the outer edge of the inner ring and the outer ring, so as to form a space for the ball supply part to smoothly supply the ball into the corresponding groove;

[0011] When the inner ring is in the second position, it is concentrically arranged with the outer ring such that the plurality of rollers are located within the assembly area formed by the corresponding first or second groove and the inner surface of the outer ring.

[0012] Furthermore, the automatic ball loading device for double-row bearings also includes a lifting mechanism, which is configured to drive the horizontal pull section to rise and fall. The lifting mechanism includes a first driving member and a lifting seat. The lifting seat is movably mounted on the base. The horizontal pull section is mounted on the lifting seat. The fixed end of the first driving member is mounted on the base. The driving end of the first driving member is connected to the lifting seat. The first driving member is configured to drive the lifting seat to a high position or a low position.

[0013] The first driving member drives the lifting seat to a low position, so that the driving end of the horizontal pull part extends into the inner hole of the inner ring.

[0014] Furthermore, the lateral pulling part includes a second driving member and a lateral moving member. The lateral moving member has a downwardly extending lateral pulling protrusion on one side near the support platform. The lateral moving member is reciprocally mounted on the lifting seat in a first direction. The fixed end of the second driving member is mounted on the lifting seat, and the driving end of the second driving member is connected to the lateral moving member. The second driving member is configured to drive the lateral moving member to move in the first direction after a preset number of rollers are installed in the second groove, so as to pull the inner ring from the first position to the second position through the lateral pulling protrusion.

[0015] Furthermore, the isolation section includes a third driving member, a rotating member, and an isolation plate. The isolation plate is located between the inner ring and the outer ring, and the side of the isolation plate facing the inner ring is adapted to the outer edge of the inner ring. When the inner ring is in the first position, the isolation plate moves alternately between a first side and a second side of the outer edge of the inner ring. The rotating member is rotatably disposed between the inner ring and the outer ring. The fixed end of the third driving member is mounted on the lifting seat, and the driving end of the third driving member is connected to the first end of the rotating member. The second end of the rotating member is vertically mounted on the isolation plate. The third driving member is configured to drive the rotating member to rotate, so that the isolation plate moves alternately between the first side and the second side of the outer edge of the inner ring.

[0016] Furthermore, the isolation section also includes a transmission assembly, which includes a first transmission gear, a second transmission gear, and a transmission shaft. The second transmission gear is sleeved on the top of the transmission shaft and meshes with the first transmission gear. The first transmission gear is coaxially connected to the driving end of the third driving member. The first end of the rotating member is connected to the middle of the transmission shaft. The third driving member drives the transmission shaft to rotate through the transmission engagement of the first transmission gear and the second transmission gear, thereby driving the rotating member to rotate.

[0017] Furthermore, the automatic ball loading device for double-row bearings also includes a transverse movement mechanism, which is configured to drive the base closer to or away from the support seat. The transverse movement mechanism includes a fourth driving member and a base platform. The base is reciprocally mounted on the base platform in a first direction. The fixed end of the fourth driving member is mounted on the base platform, and the driving end of the fourth driving member is connected to the base platform. The fourth driving member is configured to drive the base closer to or away from the support seat, thereby causing the driving end of the transverse pull part to move closer to or away from the support platform.

[0018] Furthermore, a first guide pair is provided between the base and the platform. The first guide pair includes a first linear guide rail and a first slider. The first linear guide rail extends along a first direction and is laid on the platform. The first slider is fixed on the base and slidably sleeved on the first linear guide rail.

[0019] Furthermore, a second guide pair is provided between the lifting seat and the base. The second guide pair includes a second linear guide rail and a second slider. The second linear guide rail extends along the height direction and is laid on the base. The second slider is fixed on the lifting seat and slidably sleeved on the second linear guide rail.

[0020] Furthermore, the ball supply unit includes a feeding platform and a height adjustment assembly, wherein:

[0021] The feeding platform has an inlet and an outlet. An inlet channel is provided inside the feeding platform. The first end of the inlet channel is connected to the inlet, and the second end of the inlet channel is connected to the outlet. The outlet is positioned directly opposite the second groove.

[0022] The height adjustment component includes a height adjustment drive and a height adjustment frame. The height adjustment frame is vertically mounted on the base. The fixed end of the height adjustment drive is mounted on the top of the height adjustment frame. The driving end of the height adjustment drive is connected to the feeding platform. The height adjustment drive is configured to drive the feeding platform to rise and fall, so as to move the feed inlet closer to or away from the second groove.

[0023] Furthermore, a sensing component is detachably provided on the base, and the sensing component is configured to limit the travel of the transverse member.

[0024] Compared with the prior art, the advantages of the automatic ball loading device for double-row bearings are as follows:

[0025] 1) Through the cooperation of the ball supply part, the fixing part, the isolation part and the lateral pull part, the fixing part fixes the outer ring and the inner ring relative to each other on the support platform. The ball supply part first feeds the rollers into the first groove. After the number of rollers in the first groove is loaded to a preset number, the isolation part isolates the first groove from the second groove. The ball supply part continues to feed the rollers towards the second groove until the number of rollers in the second groove is loaded to a preset number. The lateral pull part drives the inner ring to move laterally from the first position to the second position, so that multiple rollers are in the assembly area formed by the corresponding first groove or second groove and the inner surface of the outer ring, which greatly reduces the intensity of manual labor.

[0026] 2) Through the cooperation of the third driving component, the rotating component and the isolation plate, when the number of rollers in the first groove is loaded to a preset number, the third driving component drives the rotating component to rotate, so that the isolation plate moves from the first side of the outer edge of the inner ring to the second side of the outer edge of the inner ring, thereby achieving isolation between the first groove and the second groove. This not only has a simple structure and ingenious design, but also supports the rollers located in the second groove while isolating the first groove and the second groove, significantly improving the ball loading efficiency.

[0027] 3) By combining the feeding platform and the height adjustment component, the height of the discharge port can be adjusted, which can be used to load balls into double-row bearings of different specifications, further improving versatility. Attached Figure Description

[0028] To more clearly illustrate and understand the technical solutions in the embodiments of this utility model, the accompanying drawings used in the background technology and embodiment description of this utility model will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the content of the embodiments of this utility model and these drawings without creative effort.

[0029] Figure 1 This is a three-dimensional structural schematic diagram of the automatic ball loading device for double-row bearings provided in this embodiment of the utility model;

[0030] Figure 2 This is a front view schematic diagram of the automatic ball loading device for double-row bearings provided in this embodiment of the utility model;

[0031] Figure 3 This is a top view schematic diagram of the automatic ball loading device for double-row bearings provided in this embodiment of the utility model;

[0032] Figure 4 yes Figure 1 Enlarged diagram of point A in the middle. Detailed Implementation

[0033] The technical solution of this utility model will be further described below with reference to the accompanying drawings and specific embodiments.

[0034] To facilitate understanding of this utility model, a more complete description of it will be given below with reference to the accompanying drawings. Preferred embodiments of this utility model are shown in the drawings. However, this utility model can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a more thorough and complete understanding of the disclosure of this utility model. It should be noted that when a component is referred to as being "fixed to" another component, it can be directly on the other component or there may be an intermediate component. When a component is referred to as being "connected to" another component, it can be directly connected to the other component or there may be an intermediate component. The terms "vertical," "horizontal," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementations. Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this utility model belongs. The terminology used herein in the description of this utility model is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0035] Please see Figures 1 to 4As shown, in this embodiment, an automatic ball loading device for a double-row bearing 60 includes a base 10, a support seat 20, a ball supply part 30, a fixing part (not shown in the figure), an isolation part 40, and a horizontal pull part 50. The support seat 20 is located on one side of the base 10, and a support platform 21 is provided on the support seat 20. The support platform 21 is configured to support a horizontally placed double-row bearing 60 to be loaded with balls. The double-row bearing 60 includes an inner ring 61 and an outer ring 62. The inner ring 61 is disposed inside the outer ring 62. A first groove and a second groove for accommodating rollers are arranged circumferentially side-by-side on the outer surface of the inner ring 61, with the first groove located below the second groove. The ball supply part 30 is disposed on the base 10 and is configured to sequentially supply rollers into the first groove and the second groove. The fixing part is configured to... When loading balls into the double row bearing 60, the outer ring 62 and the inner ring 61 are fixed relative to each other on the support platform 21. The isolation part 40 is configured to isolate the first groove from the second groove after a preset number of rollers are loaded into the first groove. The drive end of the lateral pull part 50 is located in the inner hole of the inner ring 61. The lateral pull part 50 is configured to drive the inner ring 61 to move laterally from the first position to the second position. When the inner ring 61 is in the first position, the distance between the first side of the outer edge of the inner ring 61 and the outer ring 62 is greater than the distance between the second side of the outer edge of the inner ring 61 and the outer ring 62, so as to form a space for the ball supply part 30 to smoothly supply balls into the corresponding groove. When the inner ring 61 is in the second position, it is concentrically arranged with the outer ring 62 so that multiple rollers are in the assembly area formed by the corresponding first groove or second groove and the inner surface of the outer ring 62.

[0036] As can be seen, through the cooperation of the ball supply part 30, the fixing part, the isolation part 40 and the lateral pull part 50, the fixing part fixes the outer ring 62 and the inner ring 61 relatively on the support platform 21. The ball supply part 30 first supplies rollers into the first groove. After the number of rollers in the first groove is loaded to a preset number, the isolation part 40 isolates the first groove from the second groove. The ball supply part 30 continues to supply rollers towards the second groove until the number of rollers in the second groove is loaded to a preset number. The lateral pull part 50 drives the inner ring 61 to move laterally from the first position to the second position, so that multiple rollers are in the assembly area formed by the corresponding first groove or second groove and the inner surface of the outer ring 62, which greatly reduces the intensity of manual labor.

[0037] In one embodiment, an automatic ball loading device for a double-row bearing 60 further includes a lifting mechanism 70. The lifting mechanism 70 is configured to drive the horizontal pull section 50 to rise and fall. The lifting mechanism 70 includes a first driving member 71 and a lifting seat 72. The lifting seat 72 is movably mounted on the base 10. The horizontal pull section 50 is mounted on the lifting seat 72. The fixed end of the first driving member 71 is mounted on the base 10. The driving end of the first driving member 71 is connected to the lifting seat 72. The first driving member 71 is configured to drive the lifting seat 72 to a high position or a low position. When the first driving member 71 drives the lifting seat 72 to a low position, the driving end of the horizontal pull section 50 extends into the inner hole of the inner ring 61.

[0038] As can be seen, the first driving component 71 drives the lifting seat 72 to rise to a high or low position, thereby driving the horizontal pulling part 50 to rise and fall. This can be adapted to pulling materials of different specifications of double row bearings 60, further improving versatility.

[0039] In one embodiment, the lateral stretching portion 50 includes a second driving member 51 and a lateral moving member 52. The lateral moving member 52 has a downwardly extending lateral stretching protrusion 520 on one side near the support platform 21. The lateral moving member 52 can move along a first direction (…). Figure 1 The second drive member 51 is reciprocatingly mounted on the lifting seat 72 in the X direction. The fixed end of the second drive member 51 is mounted on the lifting seat 72. The drive end of the second drive member 51 is connected to the transverse member 52. The second drive member 51 is configured to drive the transverse member 52 to move along the first direction after the rollers in the second groove are loaded to a preset number, so as to pull the inner ring 61 from the first position to the second position by the transverse pull protrusion 520.

[0040] Specifically, both the first drive unit 71 and the second drive unit 51 can be electric cylinders, pneumatic cylinders, or other linear modules with similar functions.

[0041] As can be seen, a simple and easy-to-implement material pulling structure is provided by having a downwardly extending transverse pull protrusion 520 on one side near the support platform 21.

[0042] It should be noted that, depending on the different positional relationships of the inner ring 61 within the outer ring 62, the horizontal pull protrusion 520 can push the inner ring 61 from the first position to the second position.

[0043] In one embodiment, the isolation section 40 includes a third driving member 41, a rotating member 42, and an isolation plate 43. The isolation plate 43 is located between the inner ring 61 and the outer ring 62. The side of the isolation plate 43 facing the inner ring 61 is adapted to the outer edge of the inner ring 61. When the inner ring 61 is in a first position, the isolation plate 43 moves alternately between the first side of the outer edge of the inner ring 61 and the second side of the outer edge of the inner ring 61. The rotating member 42 is rotatably disposed between the inner ring 61 and the outer ring 62. The fixed end of the third driving member 41 is mounted on the lifting seat 72. The driving end of the third driving member 41 is connected to the first end of the rotating member 42. The second end of the rotating member 42 is vertically mounted on the isolation plate 43. The third driving member 41 is configured to drive the rotating member 42 to rotate, so that the isolation plate 43 moves alternately between the first side of the outer edge of the inner ring 61 and the second side of the outer edge of the inner ring 61.

[0044] Specifically, the third drive component 41 is a rotary motor.

[0045] As can be seen, through the cooperation of the third driving member 41, the rotating member 42 and the isolation plate 43, when the number of rollers in the first groove is loaded to a preset number, the third driving member 41 drives the rotating member 42 to rotate, so that the isolation plate 43 moves from the first side of the outer edge of the inner ring 61 to the second side of the outer edge of the inner ring 61, thereby achieving isolation between the first groove and the second groove. It is not only simple in structure and ingenious in design, but also supports the rollers located in the second groove while isolating the first groove and the second groove, which significantly improves the ball loading efficiency.

[0046] In one embodiment, the isolation part 40 further includes a transmission assembly, which includes a first transmission gear 44, a second transmission gear, and a transmission shaft 45. The second transmission gear is sleeved on the top of the transmission shaft 45 and meshes with the first transmission gear 44. The first transmission gear 44 is coaxially connected to the driving end of the third driving member 41. The first end of the rotating member 42 is connected to the middle part of the transmission shaft 45. The third driving member 41 drives the transmission shaft 45 to rotate through the transmission engagement of the first transmission gear 44 and the second transmission gear, thereby driving the rotating member 42 to rotate.

[0047] It can be seen that the transmission mechanism with simple structure and high transmission efficiency is provided by the transmission cooperation of the first transmission gear 44 and the second transmission gear.

[0048] In one embodiment, an automatic ball loading device for a double-row bearing 60 further includes a transverse mechanism 80. The transverse mechanism 80 is configured to drive the base 10 closer to or further away from the support 20. The transverse mechanism 80 includes a fourth drive member 81 and a base 82. The base 10 is reciprocally mounted on the base 82 in a first direction. The fixed end of the fourth drive member 81 is mounted on the base 82, and the drive end of the fourth drive member 81 is connected to the base 10. The fourth drive member 81 is configured to drive the base 10 closer to or further away from the support 20, thereby causing the drive end of the transverse pull part 50 to approach or move away from the support 21.

[0049] Specifically, the fourth drive component 81 is a type of drive cylinder or linear drive module.

[0050] In one embodiment, a first guide pair is provided between the base 10 and the base 82. The first guide pair includes a first linear guide rail 83 and a first slider 84. The first linear guide rail 83 is laid on the base 82 extending in a first direction. The first slider 84 is fixed on the base 10 and slidably sleeved on the first linear guide rail 83.

[0051] In one embodiment, a second guide pair is provided between the lifting seat 72 and the base 10. The second guide pair includes a second linear guide rail 73 and a second slider 74. The second linear guide rail 73 is laid on the base 10 extending in the height direction, and the second slider 74 is fixed on the lifting seat 72 and slidably sleeved on the second linear guide rail 73.

[0052] As can be seen, through the cooperation of the second linear guide rail 73 and the second slider 74, the first driving member 71 drives the lifting seat 72 to move on the base 10, providing a second guide pair with a simple structure and high guiding accuracy.

[0053] In one embodiment, the ball supply unit 30 includes a feeding platform 31 and a height adjustment component 32, wherein: the feeding platform 31 has a feed inlet and a discharge outlet, and a feed channel is provided in the feeding platform 31. The first end of the feed channel is connected to the feed inlet, and the second end of the feed channel is connected to the discharge outlet. The discharge outlet is positioned directly opposite the second groove; the height adjustment component 32 includes a height adjustment drive 320 and a height adjustment frame 321. The height adjustment frame 321 is vertically mounted on the base 10. The fixed end of the height adjustment drive 320 is mounted on the top of the height adjustment frame 321, and the driving end of the height adjustment drive 320 is connected to the feeding platform 31. The height adjustment drive 320 is configured to drive the feeding platform 31 to rise and fall, so as to move the feed inlet closer to or away from the second groove.

[0054] Specifically, one or two feeding channels can be opened in the feeding platform 31.

[0055] Specifically, the height adjustment drive component 320 uses a drive cylinder.

[0056] Of course, as another implementation method, more feeding channels can be opened in the feeding station 31. The number of feeding channels will not be repeated here.

[0057] It can be seen that by cooperating with the feeding platform 31 and the height adjustment component 32, the height of the discharge port can be adjusted, and ball loading can be carried out on double row bearings 60 of different specifications, further improving versatility.

[0058] In one embodiment, a sensing component 11 is detachably provided on the base 10, and the sensing component 11 is configured to limit the travel of the transverse member 52.

[0059] As can be seen, by detachably setting the sensing component 11 on the base 10, the movement stroke of the transverse component 52 is limited, ensuring that the transverse component 52 moves within the preset stroke range, and avoiding the phenomenon that the transverse component 52 drives the transverse pull protrusion 520 to make hard contact with the inner ring 61.

[0060] During the ball loading process of the aforementioned automatic ball loading device for double row bearings 60: First, a manual or robotic arm places the double row bearing 60 to be loaded onto the support platform 21. The fourth drive unit 81 drives the base 10 closer to the support platform 20, causing the drive end of the horizontal pull part 50 to approach the support platform 21. Second, the fixing part fixes the outer ring 62 and inner ring 61 relative to each other on the support platform 21. At the same time, the height adjustment drive unit 320 drives the feeding platform 31 to descend, so that the feed inlet approaches the second groove. Then, the ball feeding part 30 first feeds rollers into the first groove. After the preset number of rollers are installed, the third driving member 41 drives the rotating member 42 to rotate, so that the isolation plate 43 rotates from the first side of the outer edge of the inner ring 61 to the second side of the outer edge of the inner ring 61, isolating the first groove and the second groove, allowing the ball part 30 to continue feeding rollers toward the second groove until the preset number of rollers are installed in the second groove; finally, the lateral pulling part 50 drives the inner ring 61 to move laterally from the first position to the second position, so that multiple rollers are in the assembly area formed by the corresponding first groove or second groove and the inner surface of the outer ring 62, completing the assembly.

[0061] The above embodiments merely illustrate the basic principles and characteristics of this utility model. This utility model is not limited to the above examples. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A double row bearing automatic ball loading device characterized by, The automatic ball loading device for double-row bearing comprises a base, a bearing seat, a ball supply part, a fixing part, an isolation part and a horizontal pulling part, wherein: The bearing seat is located on one side of the base, and a bearing table is arranged on the bearing seat, which is configured to bear the horizontally placed double-row bearing to be loaded with balls. The ball supply part is arranged on the base, which is configured to supply balls into the first and second grooves in sequence. The fixing part is configured to fix the outer ring and the inner ring relative to the bearing table when the ball supply part loads the double-row bearing with balls. When the inner ring is in the first position, the distance between the first side of the outer edge of the inner ring and the outer ring is greater than the distance between the second side of the outer edge of the inner ring and the outer ring, so as to form a space for the ball supply part to smoothly supply balls into the corresponding groove. When the inner ring is in the second position, it is arranged concentrically with the outer ring, so that a plurality of balls are arranged in the assembly area composed of the corresponding first or second groove and the inner surface of the outer ring.

2. The double row bearing automatic ball loading device of claim 1, wherein, The automatic ball loading device for double-row bearing further comprises a lifting mechanism configured to drive the horizontal pulling part to lift, the lifting mechanism comprising a first driving member and a lifting seat, the lifting seat being arranged on the base in a lifting manner, the horizontal pulling part being mounted on the lifting seat, the fixed end of the first driving member being mounted on the base, the driving end of the first driving member being connected to the lifting seat, the first driving member being configured to drive the lifting seat to rise to a high position or a low position. The first driving member drives the lifting seat to the low position, so that the driving end of the horizontal pulling part extends into the inner hole of the inner ring.

3. The double row bearing automatic ball loading device of claim 2, wherein, The horizontal pulling part comprises a second driving member and a horizontal moving member, one side of the horizontal moving member close to the bearing table has a horizontal pulling protrusion extending downward, the horizontal moving member is arranged on the lifting seat in a reciprocating manner along a first direction, the fixed end of the second driving member is mounted on the lifting seat, the driving end of the second driving member is connected to the horizontal moving member, and the second driving member is configured to drive the horizontal moving member to move along the first direction after a plurality of balls in the second groove are loaded to a preset number, so as to move the inner ring from the first position to the second position by pulling the inner ring through the horizontal pulling protrusion.

4. The double row bearing automatic ball loading device of claim 2, wherein, The isolation part comprises a third driving member, a rotating member and an isolation plate. The isolation plate is located between the inner ring and the outer ring. The side of the isolation plate facing the inner ring is adapted to the outer edge of the inner ring. When the inner ring is in the first position, the isolation plate moves alternately between the first side of the outer edge of the inner ring and the second side of the outer edge of the inner ring. The rotating member is rotatably arranged between the inner ring and the outer ring. The fixed end of the third driving member is mounted on the lifting seat. The driving end of the third driving member is connected to the first end of the rotating member. The second end of the rotating member is vertically mounted on the isolation plate. The third driving member is configured to drive the rotating member to rotate, so that the isolation plate moves alternately between the first side of the outer edge of the inner ring and the second side of the outer edge of the inner ring.

5. The double row bearing automatic ball loading device of claim 4, wherein, The isolation part further comprises a transmission assembly. The transmission assembly comprises a first transmission gear, a second transmission gear and a transmission shaft. The second transmission gear is sleeved on the top of the transmission shaft. The second transmission gear is engaged with the first transmission gear. The first transmission gear is coaxially connected with the driving end of the third driving member. The first end of the rotating member is connected with the middle part of the transmission shaft. The third driving member drives the transmission shaft to rotate through the transmission cooperation of the first transmission gear and the second transmission gear, and then drives the rotating member to rotate.

6. The double row bearing automatic ball loading device of claim 1, wherein, The double-row bearing automatic ball loading device further comprises a horizontal moving mechanism. The horizontal moving mechanism is configured to drive the base to move close to or away from the bearing seat. The horizontal moving mechanism comprises a fourth driving member and a base platform. The base is reciprocally movably arranged on the base platform in a first direction. The fixed end of the fourth driving member is mounted on the base platform. The driving end of the fourth driving member is connected to the base. The fourth driving member is configured to drive the base to move close to or away from the bearing seat, so as to drive the driving end of the horizontal pulling part to move close to or away from the bearing platform.

7. The double row bearing automatic ball loading device of claim 6, wherein, A first guide pair is arranged between the base and the base platform. The first guide pair comprises a first linear guide rail and a first sliding block. The first linear guide rail is laid on the base platform in a first direction. The first sliding block is fixed on the base and is slidably sleeved on the first linear guide rail.

8. The double row bearing automatic ball loading device of claim 2, wherein, A second guide pair is arranged between the lifting seat and the base. The second guide pair comprises a second linear guide rail and a second sliding block. The second linear guide rail is laid on the base in a height direction. The second sliding block is fixed on the lifting seat and is slidably sleeved on the second linear guide rail.

9. The double row bearing automatic ball loading device of claim 1, wherein, The ball supply part comprises a feeding platform and an adjusting assembly. The feeding platform has an inlet and an outlet. A feeding flow channel is formed in the feeding platform. The first end of the feeding flow channel is in communication with the inlet. The second end of the feeding flow channel is in communication with the outlet. The outlet is arranged opposite to the second groove. ​ The height adjusting assembly comprises a height adjusting driving member and a height adjusting frame, the height adjusting frame is vertically installed on the base, the fixed end of the height adjusting driving member is installed on the top of the height adjusting frame, the driving end of the height adjusting driving member is connected with the feeding table, and the height adjusting driving member is configured to drive the feeding table to lift and lower so as to drive the feeding inlet to approach or move away from the second groove.

10. The double row bearing automatic ball loading device of claim 3, wherein, The base is detachably provided with an induction assembly, and the induction assembly is configured to limit the movement stroke of the transverse moving member.

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