Full ball angular contact ball bearing fitting equipment

Abstract

The utility model relates to the technical field of bearing fitting equipment, in particular to full ball angular contact ball bearing fitting equipment which comprises a workbench, supporting columns fixedly sleeve four corners of the workbench, the bottoms of the supporting columns penetrate through the workbench and extend to the lower portion of the workbench, the tops of the supporting columns are connected with a supporting plate, a bearing seat is detachably embedded in the workbench, and the bearing seat is connected with the workbench. A center hole is formed in the bearing seat, the center hole is a three-section type stepped hole with the small middle and the two large ends, the center hole comprises a first stepped hole, a second stepped hole and a third stepped hole, a core shaft is movably arranged in the center hole, an inner ring containing boss is fixedly installed at the top of the core shaft, and an outer ring containing position is formed between the core shaft and the first stepped hole. The mandrel is in sliding fit with the second stepped hole, an elastic supporting assembly is arranged in the third stepped hole, and a pressing assembly is arranged on the supporting plate. The assembling device is simple in structure, convenient to operate, low in manufacturing cost, high in assembling efficiency and high in assembling quality.

Description

Technical Field

[0001] The utility model relates to the technical field of bearing assembling equipment, in particular to a full-ball angular contact ball bearing assembling equipment. Background Art

[0002] Due to the characteristics of high rotation accuracy, low vibration and noise, and high reliability, precision full-ball angular contact ball bearings are widely used. However, full-ball angular contact ball bearings have high requirements for assembly cleanliness and assembly processes. And due to the limitation of the assembly lock when assembling precision full-ball angular contact ball bearings, the assembly is difficult. If the operation is improper, it will damage the bearing raceway and the surface of the balls, resulting in the loss of bearing accuracy or even early failure. Therefore, on the premise of ensuring that the bearing quality and performance are not affected, how to quickly assemble precision full-ball angular contact bearings is crucial.

[0003] For example, the Chinese patent with the patent publication number CN220791822U discloses an angular contact ball bearing assembling device, which relates to the technical field of bearings. The following scheme is proposed: including a main body, a bracket is arranged outside the main body, a processing table is arranged at the top of the bracket, guide rods are arranged at the four corners of the bracket, an adjusting mechanism penetrates through the outside of the guide rods, a pressing plate is arranged above the adjusting mechanism, and a hydraulic rod is arranged at the top of the pressing plate; by setting the adjusting mechanism, the limiting frame in the middle of the equipment is adjusted by a screw rod, so that the symmetrically arranged middle limiting frames are aligned with each other. After the cage balls are correspondingly installed, they can be stably clamped by the limiting frame, and the inner ring is placed on the top of the cage. After manual alignment, the subsequent stable installation can be ensured by the clamping of the limiting frame. The whole can be aligned for pressing and processing, and the pressing and flattening operation can be carried out more stably, reducing the deviation during the pressing process and ensuring smooth and accurate processing.

[0004] However, the above device still has many deficiencies. First, the above device has a complex structure, high manufacturing cost, cumbersome operation and low assembly efficiency. Second, during the assembly of the bearing by the above device, a strong pressure is directly applied to the inner ring of the bearing, and there is no elastic buffer, which easily causes hard collision and extrusion between the inner ring, outer ring and balls of the bearing, resulting in damage to these components, reducing the assembly accuracy of the bearing, and ultimately having an adverse impact on the rotation accuracy and stability of the bearing. Summary of the Utility Model

[0005] The main problem to be solved by the utility model is to provide a full-ball angular contact ball bearing assembling equipment with a simple structure, convenient operation, low manufacturing cost, high assembly efficiency and high assembly quality.

[0006] To solve the above technical problems, the utility model provides the following technical solutions:

[0007] A full-sphere angular contact ball bearing assembling device, comprising a workbench. Support columns are fixedly sleeved at the four corners of the workbench. The bottom of the support column penetrates through the workbench and extends to its lower side. A support plate is connected to the top of the support column. A bearing seat is detachably embedded on the workbench. A central hole is provided in the bearing seat. The central hole is a three-stage stepped hole that is small in the middle and large at both ends. The central hole is respectively a first stepped hole, a second stepped hole and a third stepped hole. A mandrel is movably arranged in the central hole. An inner ring placement boss is fixedly installed at the top of the mandrel. An outer ring placement position is formed between the mandrel and the first stepped hole. The mandrel is slidably matched with the second stepped hole. An elastic support assembly for elastically supporting the mandrel is arranged in the third stepped hole. A pressing assembly for pressing the bearing inner ring is arranged on the support plate.

[0008] The following is the further optimization of the above technical solution by the present utility model:

[0009] The mandrel is a three-stage stepped shaft, which is successively a first stepped shaft, a second stepped shaft and a third stepped shaft from top to bottom.

[0010] Further optimization: The diameter of the first stepped shaft matches that of the second stepped hole and is smaller than the diameter of the first stepped hole.

[0011] Further optimization: The diameter of the second stepped shaft matches that of the third stepped hole and is larger than the diameter of the second stepped hole; the diameter of the third stepped shaft is smaller than the diameter of the third stepped hole.

[0012] Further optimization: The elastic support assembly includes a spring and a limit sleeve sleeved on the mandrel. One end of the spring is embedded in the inner hole of the limit sleeve, and the other end of the spring is in contact with the bottom of the second stepped shaft.

[0013] Further optimization: The limit sleeve and the bearing seat are connected together by a plurality of fixing bolts.

[0014] Further optimization: The pressing assembly includes a telescopic cylinder fixedly installed on the top of the support plate. The telescopic end of the telescopic cylinder penetrates through the support plate and extends to its lower side and is fixedly connected with a connecting plate.

[0015] Further optimization: The bottom of the connecting plate is detachably connected with a pressing block, and the bottom of the pressing block is in contact with the bearing inner ring.

[0016] Further optimization: A ring-shaped boss is concentrically arranged at the bottom of the pressing block. The inner diameter of the ring-shaped boss is larger than the outer diameter of the bearing inner ring, the outer diameter of the ring-shaped boss is smaller than the inner diameter of the bearing outer ring, and the depth of the ring-shaped boss is smaller than the distance from the top of the ball to the top of the bearing inner ring.

[0017] Further optimization: Taking-out grooves are symmetrically arranged on both sides of the central hole at the top of the bearing seat, and the taking-out grooves are communicated with the first stepped hole.

[0018] The utility model provides a suitable placement space for the outer ring through the outer ring placement position between the first stepped hole and the mandrel, facilitating the sleeving operation with the inner ring; the second stepped hole is in sliding fit with the mandrel, providing precise guidance for the up and down movement of the mandrel, preventing the mandrel from shifting or shaking, and ensuring the accurate fit between the inner ring and the outer ring; the third stepped hole provides an installation space for the elastic support assembly, ensuring the smooth movement of the mandrel during the sleeving process.

[0019] Through the arrangement of the elastic support assembly, during the sleeving process, the gentle elastic support can reduce the hard collision and extrusion of components such as the inner ring, outer ring, and ball bearings of the bearing, protect these components from damage, and improve the yield rate and service life of the bearing.

[0020] The bearing seat of the utility model is detachably embedded on the workbench. This design not only facilitates the replacement and maintenance of the bearing seat. Thus, when the bearing seat is worn or fails, it can be quickly disassembled for replacement or repair without the need for large-scale disassembly of the entire equipment, improving the maintainability of the equipment; at the same time, the detachable design also enables the replacement of the corresponding bearing seat according to different models and specifications of bearings, improving the versatility and adaptability of the equipment.

[0021] Through the arrangement of the annular boss, the inner diameter of the annular boss is greater than the outer diameter of the bearing inner ring, the outer diameter of the annular boss is less than the inner diameter of the bearing outer ring, and the depth of the annular boss is less than the distance from the top of the ball to the top of the bearing inner ring. When the bearing inner ring is pressed down, the annular boss can be located above the ball and maintain a certain safety gap with the ball. However, when an external force causes the ball to possibly displace, the annular boss restricts the outward or upward movement of the ball and stably confines the ball in its proper position.

[0022] Adopting the above technical solutions, the utility model has a simple structure, convenient operation, low manufacturing cost, high assembly efficiency, and high assembly quality.

[0023] The following further describes the utility model with reference to the accompanying drawings and embodiments. Description of the Drawings

[0024] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the utility model;

[0025] Figure 2 It is a cross-sectional view of an embodiment of the utility model

[0026] Figure 3 It is a partial cross-sectional view in this embodiment;

[0027] Figure 4 It is a cross-sectional view of the bearing seat in this embodiment.

[0028] In the figure: 1 - workbench; 2 - support column; 3 - support plate; 4 - bearing seat; 5 - central hole; 51 - first stepped hole; 52 - second stepped hole; 53 - third stepped hole; 6 - mandrel; 61 - first stepped shaft; 62 - second stepped shaft; 63 - third stepped shaft; 7 - inner ring placement boss; 8 - elastic support assembly; 81 - spring; 82 - limit sleeve; 9 - pressing assembly; 91 - telescopic cylinder; 92 - connecting plate; 93 - pressing block; 94 - annular boss; 10 - extraction groove. Detailed implementation manners

[0029] As Figures 1-4 shown, a full-ball angular contact ball bearing assembling equipment includes a workbench 1. Support columns 2 are fixedly sleeved on the four corners of the workbench 1. The bottoms of the support columns 2 penetrate through the workbench 1 and extend to its lower side. A support plate 3 is connected to the tops of the support columns 2. A bearing seat 4 is detachably embedded on the workbench 1. A central hole 5 is formed in the bearing seat 4. The central hole 5 is a three-stage stepped hole that is small in the middle and large at both ends. The central hole 5 is respectively a first stepped hole 51, a second stepped hole 52, and a third stepped hole 53. A mandrel 6 is movably arranged in the central hole 5. An inner ring placement boss 7 is fixedly installed at the top of the mandrel 6. And an outer ring placement position is formed between the mandrel 6 and the first stepped hole 51. The mandrel 6 is slidably matched with the second stepped hole 52. An elastic support assembly 8 for elastically supporting the mandrel 6 is arranged in the third stepped hole 53. A pressing assembly 9 for pressing the inner ring of the bearing is arranged on the support plate 3.

[0030] With such a design, first, the outer ring placement position between the first stepped hole 51 and the mandrel 6 provides a suitable placement space for the outer ring, facilitating the assembling operation with the inner ring. The second stepped hole 52 is slidably matched with the mandrel 6, providing precise guidance for the up and down movement of the mandrel 6, preventing the mandrel 6 from shifting or shaking, and ensuring the accurate matching of the inner ring and the outer ring. The third stepped hole 53 provides an installation space for the elastic support assembly 8, ensuring the smooth movement of the mandrel 6 during the assembling process.

[0031] Secondly, the bearing seat 4 is detachably embedded on the workbench 1. This design not only facilitates the replacement and repair of the bearing seat 4. Thus, when the bearing seat 4 is worn or fails, it can be quickly disassembled for replacement or repair without the need for large-scale disassembly of the entire equipment, improving the maintainability of the equipment. At the same time, the detachable design also enables the replacement of the corresponding bearing seat 4 according to different models and specifications of bearings, improving the versatility and adaptability of the equipment.

[0032] Thirdly, the inner ring of the bearing is pressed by the pressing assembly 9 on the support plate 3 to realize the assembling operation of the inner ring and the outer ring of the bearing. And by precisely controlling the pressure and the downward pressing distance of the pressing assembly 9, the accuracy and quality of the bearing assembling can be ensured.

[0033] In addition, through the setting of the elastic support component 8, during the sleeving process, the soft elastic support can reduce the hard collision and extrusion on components such as the inner ring, outer ring, and ball of the bearing, protect these components from damage, and improve the yield rate and service life of the bearing.

[0034] The mandrel 6 is a three-stage stepped shaft, which is successively the first stepped shaft 61, the second stepped shaft 62, and the third stepped shaft 63 from top to bottom.

[0035] The diameter of the first stepped shaft 61 matches that of the second stepped hole 52 and is smaller than the diameter of the first stepped hole 51.

[0036] With such a design, first, the diameter of the first stepped shaft 61 matches that of the second stepped hole 52. This tight fit can ensure that during the up and down movement of the mandrel 6, it can maintain stable linear movement in the area of the second stepped hole 52. Because the second stepped hole 52 plays a guiding role for the first stepped shaft 61, the mandrel 6 will not shake or shift during operation, so as to ensure that when the inner ring of the bearing is placed on the inner ring placement boss 7 at the top of the mandrel 6, it can accurately perform the sleeving operation with the outer ring.

[0037] At the same time, the diameter of the first stepped shaft 61 is smaller than that of the first stepped hole 51, so that a placement position for the outer ring can be formed between the first stepped shaft 61 and the first stepped hole 51, providing a suitable placement space for the outer ring of the bearing, facilitating the outer ring to be in an accurate position during the sleeving process, and being beneficial to improving the sleeving accuracy.

[0038] The diameter of the second stepped shaft 62 matches that of the third stepped hole 53 and is larger than the diameter of the second stepped hole 52.

[0039] With such a design, the diameter of the second stepped shaft 62 matches that of the third stepped hole 53 and is larger than the diameter of the second stepped hole 52. Thus, this design enables the second stepped shaft 62 to move stably within the third stepped hole 53, and because its diameter is larger than that of the second stepped hole 52, it can play a limiting role when the mandrel 6 moves up and down. Therefore, when the mandrel 6 moves upward, the second stepped shaft 62 can abut against the junction of the second stepped hole 52 and the third stepped hole 53, preventing the mandrel 6 from moving upward excessively, thereby ensuring that the movement range of the mandrel 6 in the vertical direction is within a reasonable interval, which is beneficial to the smooth progress of the sleeving operation.

[0040] The diameter of the third stepped shaft 63 is smaller than the diameter of the third stepped hole 53.

[0041] With this design, the third stepped shaft 63 is smaller than the diameter of the third stepped hole 53, so that the third stepped shaft 63 has a certain amount of space to move in the third stepped hole 53. At the same time, it also makes it easier for the elastic support component 8 to better apply elastic force to the second stepped shaft 62, ensuring that the core shaft 6 has appropriate buffering and rebound capabilities when subjected to pressure from the pressing component 9, thereby improving the stability and quality of the fitting operation.

[0042] The elastic support assembly 8 includes a spring 81 and a limiting sleeve 82 which are sleeved on the core shaft 6 , and one end of the spring 81 is embedded in the inner hole of the limiting sleeve 82 , and the other end of the spring 81 contacts the bottom of the second stepped shaft 62 .

[0043] With this design, first, the spring 81 is sleeved on the core shaft 6, which can transmit the force of the spring 81 along the axial direction of the core shaft 6, ensuring that the elastic force of the spring 81 effectively acts on the core shaft 6. When the pressing assembly 9 applies pressure, the spring 81 can be compressed or stretched according to the pressure change to provide elastic support for the core shaft 6, and its installation method makes the relative position stable, ensuring the reliability of the elastic support.

[0044] Secondly, one end of the spring 81 is embedded in the inner hole of the limit sleeve 82. The limit sleeve 82 provides a stable embedding position for this end of the spring 81, preventing the spring 81 from shaking laterally or deviating from the axis during compression and extension, ensuring that the elastic force of the spring 81 always acts vertically on the core shaft 6, improving the stability and accuracy of the elastic support, and at the same time protecting the embedded part of the spring 81, thereby extending the service life of the spring 81.

[0045] Again, the other end of the spring 81 contacts the bottom of the second stepped shaft 62, and can directly transmit the elastic force to the second stepped shaft 62, and then act on the inner ring of the bearing; when the pressing assembly 9 applies pressure, the compression of the spring 81 can buffer the pressure, avoiding excessive impact on the inner ring of the bearing and the core shaft 6. When the pressure decreases or disappears, the elastic force of the spring 81 can help the core shaft 6 and the inner ring of the bearing to return to their initial positions, ensuring the smooth fitting operation and the position accuracy of the inner ring of the bearing.

[0046] In summary, this structural design achieves precise control of the bearing inner ring pressing process, avoiding the occurrence of excessive bearing pressing, thereby effectively avoiding the situation in actual operation where, if the pressure applied by the pressing assembly 9 is too large, the spring 81 will be fully compressed, but its compression amount will be limited by the limit sleeve 82, thereby preventing the pressure from being further transmitted to the bearing inner ring, preventing the inner ring from being excessively pressed down.

[0047] The limiting sleeve 82 and the bearing seat 4 are connected together by a plurality of fixing bolts.

[0048] With such a design, during the operation of the device, the limit sleeve 82 can be stably fixed on the bearing seat 4, without loosening or displacement due to the elastic force of the spring 81 or other external forces, ensuring the overall stability of the elastic support assembly 8. Multiple fixing bolts make the connection more uniform and stable, can withstand the reaction force generated when the spring 81 works, prevent the connection between the limit sleeve 82 and the bearing seat 4 from loosening or failing, and at the same time, this connection method is convenient for disassembly and installation when replacing the spring 81 or the limit sleeve 82, improving the maintainability of the device.

[0049] The pressing assembly 9 includes a telescopic cylinder 91 fixedly installed on the top of the support plate 3, and the telescopic end of the telescopic cylinder 91 penetrates through the support plate 3 and extends to its lower side and is fixedly connected with a connecting plate 92.

[0050] With such a design, the telescopic end of the telescopic cylinder 91 penetrates through the support plate 3 and is fixedly connected with the connecting plate 92. Through its telescopic movement, the up and down movement of the connecting plate 92 can be precisely controlled, and the pressure magnitude and the pressing distance can be adjusted according to different bearing specifications and the requirements of the sleeve assembling process, smoothly pushing the connecting plate 92 to realize the pressing of the bearing inner ring. After completion, pulling up the connecting plate 92 facilitates the next bearing sleeve assembling operation, improving production efficiency.

[0051] The bottom of the connecting plate 92 is detachably connected with a pressing block 93, and the bottom of the pressing block 93 is in contact with the bearing inner ring.

[0052] A ring-shaped boss 94 is concentrically arranged at the bottom of the pressing block 93. The inner diameter of the ring-shaped boss 94 is larger than the outer diameter of the bearing inner ring, the outer diameter of the ring-shaped boss 94 is smaller than the inner diameter of the bearing outer ring, and the depth of the ring-shaped boss 94 is smaller than the distance from the top of the ball to the top of the bearing inner ring.

[0053] With such a design, the inner diameter of the ring-shaped boss 94 is larger than the outer diameter of the bearing inner ring, the outer diameter of the ring-shaped boss 94 is smaller than the inner diameter of the bearing outer ring, and the depth of the ring-shaped boss 94 is smaller than the distance from the top of the ball to the top of the bearing inner ring, so that when pressing the bearing inner ring, the ring-shaped boss 94 can be located above the ball and maintain a certain safety gap with the ball. However, when there is an external force acting that may cause the ball to displace, the ring-shaped boss 94 restricts the outward or upward movement of the ball, stably constraining the ball in its proper position.

[0054] Taking-out grooves 10 are symmetrically arranged on both sides of the central hole 5 at the top of the bearing seat 4, and the taking-out grooves 10 are communicated with the first stepped hole 51.

[0055] With such a design, the design that the taking-out grooves 10 at the top of the bearing seat 4 are symmetrically arranged and communicated with the first stepped hole 51 facilitates the taking out of the bearing outer ring.

[0056] For those of ordinary skill in the art, according to the teachings of the present utility model, without departing from the principles and spirit of the present utility model, the changes, modifications, substitutions, and variations made to the embodiments still fall within the protection scope of the present utility model.

Claims

1. A full-sphere angular contact ball bearing assembling device, comprising a workbench (1), support columns (2) are fixedly sleeved on the four corners of the workbench (1), the bottoms of the support columns (2) penetrate through the workbench (1) and extend to its lower side, and a support plate (3) is connected to the top of the support column (2), characterized in that: A bearing seat (4) is detachably embedded on a workbench (1). A central hole (5) is provided in the bearing seat (4). The central hole (5) is a three-stage stepped hole that is smaller in the middle and larger at both ends. The central hole (5) is respectively a first stepped hole (51), a second stepped hole (52), and a third stepped hole (53). A mandrel (6) is movably arranged in the central hole (5). An inner ring placement boss (7) is fixedly installed at the top of the mandrel (6). And an outer ring placement position is formed between the mandrel (6) and the first stepped hole (51). The mandrel (6) is in sliding fit with the second stepped hole (52). An elastic support assembly (8) for elastically supporting the mandrel (6) is arranged in the third stepped hole (53). A pressing assembly (9) for pressing the inner ring of the bearing is arranged on the support plate (3).

2. The full-sphere angular contact ball bearing assembling equipment according to claim 1, wherein: The mandrel (6) is a three-stage stepped shaft. The mandrel (6) is successively a first stepped shaft (61), a second stepped shaft (62), and a third stepped shaft (63) from top to bottom.

3. The full-sphere angular contact ball bearing assembling device according to claim 2, characterized in that: The diameter of the first stepped shaft (61) matches the diameter of the second stepped hole (52) and is smaller than the diameter of the first stepped hole (51).

4. A full-ball angular contact ball bearing assembling device according to claim 3, characterized in that: The diameter of the second stepped shaft (62) matches the diameter of the third stepped hole (53) and is larger than the diameter of the second stepped hole (52); the diameter of the third stepped shaft (63) is smaller than the diameter of the third stepped hole (53).

5. The full-ball angular contact ball bearing assembling equipment according to claim 4, characterized in that: The elastic support assembly (8) includes a spring (81) and a limit sleeve (82) sleeved on the mandrel (6). And one end of the spring (81) is embedded in the inner hole of the limit sleeve (82), and the other end of the spring (81) is in contact with the bottom of the second stepped shaft (62).

6. The full-sphere angular contact ball bearing assembling equipment according to claim 5, characterized in that: The limit sleeve (82) and the bearing seat (4) are connected together by a plurality of fixing bolts.

7. A full-sphere angular contact ball bearing assembling device according to claim 1, characterized in that: The pressing assembly (9) includes a telescopic cylinder (91) fixedly installed on the top of the support plate (3). The telescopic end of the telescopic cylinder (91) penetrates through the support plate (3) and extends to its lower side and is fixedly connected with a connecting plate (92).

8. A full-ball angular contact ball bearing assembling device according to claim 7, characterized in that: The bottom of the connecting plate (92) is detachably connected with a pressing block (93). The bottom of the pressing block (93) is in contact with the inner ring of the bearing.

9. The full-sphere angular contact ball bearing assembling device according to claim 8, characterized in that: A ring-shaped boss (94) is concentrically arranged at the bottom of the pressing block (93). The inner diameter of the ring-shaped boss (94) is larger than the outer diameter of the inner ring of the bearing. The outer diameter of the ring-shaped boss (94) is smaller than the inner diameter of the outer ring of the bearing. The depth of the ring-shaped boss (94) is smaller than the distance from the top of the ball to the top of the inner ring of the bearing.

10. A full-sphere angular contact ball bearing assembling device according to claim 1, characterized in that: Taking-out grooves (10) are symmetrically arranged on both sides of the central hole (5) at the top of the bearing seat (4), and the taking-out grooves (10) communicate with the first stepped hole (51).

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