A superfinishing machine for tapered roller bearing production

Abstract

The present disclosure relates to the technical field of bearing processing production, and an embodiment of the present disclosure provides an ultra-precision machine for production of tapered roller bearings, which comprises a machine body and a vertical seat, the vertical seat is arranged on the machine body, a driving assembly is arranged on the vertical seat, a rectangular seat is arranged on the machine body, a surface treatment assembly is arranged on the machine body and the rectangular seat, the surface treatment assembly comprises a pair of moving shells, the moving shells are connected in the rectangular seat through horizontal linear driving, a rotating disc rotating through electric driving is arranged at the bottom of the moving shell, a pair of round rods are arranged in the moving shell, a moving frame is slidably connected on the round rods, and an oil stone is arranged at the front end of the moving frame. Through the above technical scheme, the technical problem that the existing ultra-precision machine for production of tapered roller bearings generally adopts a single oil stone processing structure and cannot simultaneously perform rough grinding and fine grinding is solved.

Description

Technical Field

[0001] The embodiments disclosed herein relate to the technical field of bearing processing and production, specifically to an ultraprecision machine for the production of tapered roller bearings. Background Technology

[0002] In the production of tapered roller bearings, ultra-precision machining is a core process that determines the surface quality and service life of the bearing raceway. It requires grinding the raceway with an oilstone to remove excess material from rough machining (rough grinding) and to ensure the smoothness, roundness, and other precision indicators of the raceway (fine grinding). The continuity of these two steps directly affects the overall performance of the bearing. As the bearing industry develops towards higher precision and higher production capacity, the shortcomings of traditional ultra-precision machines are becoming increasingly apparent: existing ultra-precision machines used for tapered roller bearing production generally adopt a single oilstone machining structure, which cannot perform rough grinding and fine grinding simultaneously, requiring separate operations, severely limiting processing efficiency and precision stability.

[0003] The traditional single-stone ultraprecision mill has significant limitations in its processing flow: First, a coarse grinding stone must be installed, and after removing excess material from the raceway, the machine must be stopped to replace it with a fine grinding stone. The stone pressure and grinding parameters must then be readjusted before fine grinding can begin. This process requires multiple starts and stops of the equipment and replacement of parts, making it cumbersome, time-consuming, and limiting the processing capacity per unit time, making it unsuitable for mass production needs. More importantly, during the secondary clamping of tapered roller bearings in step-by-step processing, positioning errors can easily lead to inconsistent benchmarks between the coarse and fine grinding of the raceway, resulting in uneven raceway surface precision, localized scratches, and other problems that affect the smoothness and wear resistance of the bearing during operation.

[0004] Therefore, the development of an ultra-precision machine capable of simultaneously performing rough and fine grinding for tapered roller bearing production has become an urgent need to optimize bearing processing procedures, ensure product precision, and increase production capacity. Utility Model Content

[0005] To overcome the above-mentioned defects, the embodiments of this disclosure provide an ultra-precision machine for the production of tapered roller bearings, which solves the technical problem that existing ultra-precision machines for the production of tapered roller bearings generally adopt a single oilstone processing structure and cannot perform rough grinding and fine grinding simultaneously.

[0006] According to one aspect, at least one embodiment of this disclosure provides an ultraprecision machine for the production of tapered roller bearings, comprising: The body and the stand, wherein the stand is mounted on the body; The mounting drive assembly is mounted on the stand; A pair of rectangular seats and a surface treatment component, wherein the rectangular seats are both disposed on the body, and the surface treatment component is disposed on the body and the rectangular seats; The surface treatment assembly includes a pair of movable shells connected to the rectangular base by a horizontal linear drive. A rotating disk driven by electricity is provided at the bottom of the movable shell. A pair of round rods are provided inside the movable shell. A movable frame is slidably connected to the round rods. An oilstone is installed at the front end of the movable frame. The pair of oilstones are for coarse grinding and fine grinding, respectively.

[0007] As a further technical solution, springs are fitted at both ends of the round rod, a transmission rod is rotatably connected between the surface of the rotating disk and one end of the moving frame via a pin, a pair of rotating disks are rotatably connected inside the surface of the machine body, and the rectangular seat is fixed on the rotating disk.

[0008] As a further technical solution, a driven gear is provided at the lower end of the rotating disk, and a rotating shaft is horizontally rotatably connected to the top of the machine body. The rotating shaft is driven to rotate by electricity, and drive gears are provided at both ends of the rotating shaft. The drive gears mesh with the driven gears.

[0009] According to another aspect, in at least one embodiment of the present invention, the mounting drive assembly includes a bearing seat, which is horizontally rotatably connected to the upright seat by electric drive. The bearing seat has a threaded groove at its front end, and an inner support sleeve is fitted onto the front end of the bearing seat. A bolt connects the inner support sleeve and the threaded groove.

[0010] As a further technical solution, the outer surface of the front end of the bearing seat and the outer surface of the inner support sleeve are both inclined structural surfaces.

[0011] As a further technical solution, a collection groove is provided on the surface of the machine body, and a drain pipe is provided at the top of the machine body, with the drain pipe connected to the collection groove.

[0012] As a further technical solution, a cooling water pipe is provided on the top of the stand, and the front end of the cooling water pipe has a double-headed structure.

[0013] As a further technical solution, both the driving gear and the driven gear are bevel gears, and the rotation directions of the pair of rotating disks are opposite.

[0014] The beneficial effects of the embodiments disclosed herein are as follows: This disclosure addresses the issues of low efficiency and poor precision in traditional ultra-precision machining by using a surface treatment component. A pair of oilstones perform rough and fine grinding functions respectively, eliminating the need for machine downtime and component replacement. This allows for processing to be completed in a single setup, significantly shortening the ultra-precision machining cycle and adapting to mass production needs. The rotating disk, transmission rod, and round rod work together to drive the sliding frame. Springs at both ends of the round rod provide adaptive pressure. When there are minor protrusions on the bearing surface, the springs compress to buffer and prevent over-grinding. When there are depressions, the springs rebound to push the oilstones forward, ensuring uniform grinding of the bearing surface without dead corners and guaranteeing roughness and roundness accuracy.

[0015] In addition, the drive gear and driven gear drive the rotating disk to adjust the angle, so that the oilstone can be accurately matched to the conical surface of the tapered roller bearing, avoiding incomplete grinding in some areas due to angular deviation, further improving the processing quality, and laying the foundation for the smoothness and wear resistance of the bearing in subsequent operation. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this disclosure, the accompanying drawings used in the description of the embodiments of this disclosure will be briefly introduced below. Obviously, the drawings described below are merely some exemplary embodiments of this disclosure. For those skilled in the art, other drawings can be obtained based on the content of the exemplary embodiments of this disclosure and these drawings without any creative effort.

[0017] Figure 1 This is a schematic diagram of a structure in one embodiment of the present disclosure; Figure 2 This is an isometric drawing of the present disclosure; Figure 3 This is an isometric sectional view of the present disclosure; Figure 4 Appendix to this disclosure Figure 3 Enlarged view of part A in the middle; In the diagram: 1. Body; 2. Stand; 3. Rectangular base; 4. Surface treatment assembly; 4-1. Moving shell; 4-2. Rotating disk; 4-3. Round rod; 4-4. Moving frame; 4-5. Oilstone; 4-6. Spring; 4-7. Transmission rod; 4-8. Rotating disk; 4-9. Driven gear; 4-10. Rotating shaft; 4-11. Drive gear; 5. Mounting drive assembly; 5-1. Shaft seat; 5-2. Threaded groove; 5-3. Inner support sleeve; 5-4. Bolt; 6. Collection trough; 7. Drain pipe; 8. Cooling water pipe. Detailed Implementation

[0018] The present disclosure will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present disclosure and are not intended to limit the scope of the disclosure.

[0019] To keep the drawings concise, each drawing only schematically shows the parts relevant to the disclosure; these do not represent the actual structure of the product. Furthermore, for ease of understanding, in some drawings, only one of components with the same structure or function is schematically shown, or only one is labeled. In this document, "one" not only means "only one," but can also mean "more than one," and "several" includes "two" and "more than two."

[0020] In this document, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linkage" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this disclosure based on the specific circumstances.

[0021] In this disclosure, unless otherwise expressly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0022] In the description of this embodiment, terms such as "upper," "lower," "left," and "right" are based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of description and simplification of operation, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this disclosure.

[0023] Furthermore, in the description of this application, the terms "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0024] like Figures 1-4 As shown, it illustrates an ultraprecision machine for producing tapered roller bearings according to an embodiment of the present disclosure, comprising: The machine body 1 and the stand 2, wherein the stand 2 is disposed on the machine body 1; The mounting drive assembly 5 is mounted on the stand 2; A pair of rectangular seats 3 and a surface treatment component 4, wherein the rectangular seats 3 are both disposed on the body 1, and the surface treatment component 4 is disposed on the body 1 and the rectangular seats 3; The surface treatment component 4 includes a pair of movable shells 4-1, which are connected to the rectangular base 3 via a horizontal linear drive. A rotating disk 4-2, driven by electricity, is located at the bottom of each movable shell 4-1. A pair of round rods 4-3 are located inside each movable shell 4-1, and a movable frame 4-4 is slidably mounted on each round rod 4-3. An oilstone 4-5 is mounted at the front end of each movable frame 4-4, serving as both a coarse grinding stone and a fine grinding stone. Springs 4-6 are fitted at both ends of each round rod 4-3. The rotating disk 4-... A transmission rod 4-7 is rotatably connected to one end of the moving frame 4-4 via a pin. A pair of rotating disks 4-8 are rotatably connected inside the surface of the machine body 1. The rectangular seat 3 is fixed on the rotating disks 4-8. A driven gear 4-9 is provided at the lower end of the rotating disks 4-8. A rotating shaft 4-10 is rotatably connected horizontally to the top of the machine body 1. The rotating shaft 4-10 is driven to rotate by electricity. Both ends of the rotating shaft 4-10 are provided with drive gears 4-11, which mesh with the driven gears 4-9.

[0025] In some examples, to achieve integrated ultra-precision machining of tapered roller bearings, combining rough grinding to remove excess material with fine grinding to improve accuracy, and to avoid positioning deviations or inefficiencies caused by traditional sequential machining, a surface treatment component 4 was designed. This component includes a movable shell 4-1 connected to a rectangular base 3 via a horizontal linear drive. This movable shell 4-1 is the core of the surface treatment position adjustment. The horizontal linear drive can move the movable shell 4-1 horizontally along the rectangular base 3, precisely adjusting the distance between the oilstone 4-5 inside the movable shell 4-1 and the bearing surface to be machined. This ensures that the oilstone 4-5 can fit against the bearing surface at the optimal distance, avoiding both excessively large distances that would render grinding ineffective and excessively small distances that would cause excessive wear on the oilstone 4-5. The moving direction of the movable shell 4-1 must be matched with the bearing axis to lay the foundation for the uniformity of subsequent rough and fine grinding.

[0026] The rotating disk 4-2, driven by electricity, rotates at the bottom of the movable housing 4-1. Together with the movable frame 4-4, transmission rod 4-7, round rod 4-3, and spring 4-6, it forms the pressure adjustment and motion transmission mechanism for the honing stone 4-5. When the rotating disk 4-2 rotates, it drives one end of the transmission rod 4-7 to make a circular motion through the pin. The other end of the transmission rod 4-7 pushes the movable frame 4-4 to slide along the round rod 4-3. The round rod 4-3 guides the movable frame 4-4 and prevents it from deviating when sliding. The springs 4-6 fitted at both ends of the round rod 4-3 generate elastic rebound force when the movable frame 4-4 slides, so that the movable frame 4-4 drives the honing stone 4-5 to always keep it in close contact with the bearing surface with appropriate pressure, forming an adaptive pressure adjustment.

[0027] When there are minor protrusions on the bearing surface, the spring 4-6 compresses to buffer the pressure, preventing the oilstone 4-5 from over-grinding. When there are depressions on the surface, the spring 4-6 rebounds to push the oilstone 4-5 forward, ensuring thorough grinding and uniform surface roughness. A pair of oilstones 4-5 mounted at the front end of the moving frame 4-4 perform rough grinding and fine grinding functions respectively. The rough grinding oilstone 4-5 first removes machining allowances from the bearing surface and corrects macroscopic shape deviations. The fine grinding oilstone 4-5 then follows closely to finely grind the surface after rough grinding, improving surface finish and dimensional accuracy. The simultaneous operation of both significantly shortens the ultra-precision machining cycle and improves production efficiency.

[0028] The rotating disk 4-8, which is rotatably connected to the surface of the machine body 1, is fixedly connected to the rectangular seat 3. The driven gear 4-9 at the lower end of the rotating disk 4-8 ​​meshes with the drive gears 4-11 at both ends of the rotating shaft 4-10 inside the machine body 1, forming an angle adjustment mechanism. The rotating shaft 4-10 is driven to rotate by electricity, which drives the drive gear 4-11 to rotate, and then drives the driven gear 4-9 and the rotating disk 4-8 ​​to rotate. The rotating disk 4-8 ​​drives the rectangular seat 3, the movable housing 4-1, and the oilstone 4-5 to rotate synchronously. The contact angle between the oilstone 4-5 and the conical surface of the tapered roller bearing can be adjusted to ensure that the oilstone 4-5 can fully adapt to the conical structure of the bearing, and perform all-round ultra-precision machining on the inner and outer conical surfaces of the bearing, avoiding the problem of incomplete local grinding due to angle deviation.

[0029] like Figures 1-4 As shown in the figure, the installation drive assembly 5 in this embodiment includes a bearing 5-1. The bearing 5-1 is horizontally rotatably connected to the stand 2 by electric drive. The front end of the bearing 5-1 is provided with a threaded groove 5-2. An inner support sleeve 5-3 is fitted on the front end of the bearing 5-1. A bolt 5-4 connects the inner support sleeve 5-3 and the threaded groove 5-2.

[0030] In some examples, to achieve convenient clamping and precise rotation of tapered roller bearings and avoid the problems of inaccurate positioning, time-consuming clamping, or rotational wobbling that exist in traditional clamping methods, a mounting drive assembly 5 is designed. This assembly includes a bearing seat 5-1 that rotates horizontally within the stand 2 via electric drive. It is the core component for driving the bearing rotation. The rotation axis of the bearing seat 5-1 must be precisely aligned with the axis of the bearing to ensure that there is no eccentric wobbling when the bearing rotates. This provides stable motion assurance for the uniform grinding of the surface treatment assembly 4. The rotation speed of the bearing seat 5-1 can be adjusted according to the ultra-precision machining stage. For example, the speed can be appropriately increased in the rough grinding stage to improve the efficiency of removing excess material, while the speed can be reduced in the fine grinding stage to ensure surface accuracy. The speed adjustment is achieved through the electric drive system, which is convenient to operate and has high adjustment accuracy. The threaded groove 5-2 at the front end of the bearing seat 5-1 is connected to the inner support sleeve 5-3 by bolts 5-4, forming a quick inner support fixing structure for the bearing. The inner support sleeve 5-3 is made of a wear-resistant material with a certain degree of elasticity. After the inner hole of the tapered roller bearing is fitted onto the outer side of the inner support sleeve 5-3, the bolts 5-4 are tightened. The screwing action of the bolts 5-4 in the threaded groove 5-2 will push the inner support sleeve 5-3 to expand radially, so that the inner support sleeve 5-3 fits tightly against the inner wall of the bearing hole, achieving quick fixing of the bearing. This inner support fixing method does not require complex external clamps. The clamping process can be completed simply by tightening the bolts 5-4, which greatly shortens the clamping time. Moreover, the contact surface between the inner support sleeve 5-3 and the inner hole of the bearing is uniform, which can ensure the coaxiality of the bearing and the bearing seat 5-1 and avoid rotational shaking caused by clamping eccentricity.

[0031] The fit between bolt 5-4 and threaded groove 5-2 must have sufficient strength to ensure that the inner support sleeve 5-3 can stably fix the bearing after expansion, preventing the bearing from loosening or slipping under the pressure of high-speed rotation or grinding with an oilstone 4-5, which would affect the ultra-precision machining accuracy. At the same time, the expansion amount of the inner support sleeve 5-3 can be finely adjusted by the screwing depth of bolt 5-4 to adapt to tapered roller bearings with different inner diameter specifications, improving the versatility of the component and eliminating the need to replace special fixtures for different bearing specifications, thus reducing equipment investment costs. When the bearing seat 5-1 rotates by electric drive, it will drive the inner support sleeve 5-3 to rotate synchronously with the fixed bearing, providing a basis for relative motion of the oilstone 4-5 of the surface treatment component 4. When the oilstone 4-5 is fixed, the bearing rotates to achieve full circumferential grinding; with the movement adjustment of the surface treatment component 4, the ultra-precision machining of the entire surface of the bearing can be completed.

[0032] The connection between the bearing seat 5-1 and the vertical seat 2 must have good sealing and stability to prevent debris and oil generated during the processing from entering the interior of the vertical seat 2 and affecting the rotational accuracy of the bearing seat 5-1, thus extending the service life of the component.

[0033] For example, such as Figure 1 As shown, the outer surface of the front end of the bearing 5-1 and the outer surface of the inner support sleeve 5-3 are both inclined structural surfaces.

[0034] In some examples, both the outer surface of the front end of the bearing housing 5-1 and the outer surface of the inner support sleeve 5-3 are inclined surfaces. This design precisely adapts to the tapered structure of the inner bore of the tapered roller bearing, allowing the inner support sleeve 5-3 to expand and form a surface-to-surface fit with the bearing inner bore. The inclination angle must perfectly match the taper of the bearing inner bore to avoid the local contact problems caused by traditional cylindrical surface mating, significantly improving the coaxiality of the two.

[0035] For example, such as Figures 1-2 As shown, a collection groove 6 is provided on the surface of the body 1, and a drain pipe 7 is provided at the top inside the body 1, and the drain pipe 7 is connected to the collection groove 6.

[0036] In some examples, the collection grooves 6 on the surface of the body 1 are arranged in a ring or strip shape, covering the processing area of ​​the surface treatment component 4 and the mounting drive component 5, and can collect the wear particles of the oilstone 4-5, bearing debris and coolant mixture generated during ultra-precision machining.

[0037] For example, such as Figure 1 As shown, a cooling water pipe 8 is provided on the top of the stand 2, and the front end of the cooling water pipe 8 has a double-headed structure.

[0038] In some examples, the cooling water pipe 8 at the top of the stand 2 adopts a double-ended structure, with the two outlets respectively aligned with the contact area between the oilstone 4-5 and the bearing and the periphery of the rotating disk 4-2, enabling targeted localized cooling. During machining, the coolant is sprayed evenly from the double-ended ends, which on the one hand removes the heat generated by the friction between the oilstone 4-5 and the bearing, preventing the oilstone 4-5 from experiencing a decrease in hardness and accelerated wear due to overheating; on the other hand, it cools the rotating disk 4-2 and transmission components, preventing thermal deformation from affecting motion accuracy.

[0039] For example, such as Figure 2 As shown, both the driving gear 4-11 and the driven gear 4-9 are bevel gears, and the pair of rotating disks 4-2 rotate in opposite directions.

[0040] In some examples, the drive gear 4-11 and the driven gear 4-9 are bevel gears, which can adapt to the transmission requirements of the rotating shaft 4-10 (horizontally mounted) and the rotating disk 4-8 ​​(vertically rotating) through vertical power transmission. The bevel gear has a large contact area of ​​meshing surface, which can stably transmit torque and avoid slippage or jamming during power transmission, ensuring that the rotating disk 4-8 ​​drives the rectangular seat 3 to rotate smoothly.

[0041] In actual use: First, install the tapered roller bearing onto the inner support sleeve 5-3 of the shaft seat 5-1 of the vertical seat 2, tighten the bolt 5-4 between the threaded groove 5-2 of the shaft seat 5-1 and the inner support sleeve 5-3, and the inner support sleeve 5-3 will expand and fit tightly against the inner hole of the bearing, completing the quick clamping of the bearing; start the electric drive of the shaft seat 5-1 to drive the bearing to rotate stably in the horizontal direction, and at the same time open the double-headed cooling water pipe 8 on the top of the vertical seat 2 to deliver coolant to the processing area to reduce the temperature. Next, adjust the surface treatment component 4. The horizontal linear drive within the rectangular base 3 moves the movable housing 4-1, causing the coarse and fine grinding stones 4-5 at the front end of the movable frame 4-4 to gradually approach the bearing surface. Start the rotating disk 4-2 inside the movable housing 4-1. The rotating disk 4-2 drives one end of the transmission rod 4-7 in a circular motion via a pin. The other end of the transmission rod 4-7 pushes the movable frame 4-4 to slide along the round rod 4-3. The springs 4-6 at both ends of the round rod 4-3 generate elastic rebound force, ensuring that the grinding stones 4-5 adhere to the bearing surface with appropriate pressure. Start the rotating shaft 4-10 at the top inside the machine body 1. The drive gears 4-11 at both ends of the shaft... The driven gear 4-9 at the lower end of the rotating disk 4-8 ​​meshes and drives the rotating disk 4-8 ​​and the rectangular seat 3 fixed on it to rotate. The angle between the moving shell 4-1 and the oilstone 4-5 is adjusted so that the oilstone 4-5 is fully adapted to the conical surface of the bearing. During the processing, the rough grinding oilstone 4-5 first removes the machining allowance on the bearing surface, and the fine grinding oilstone 4-5 simultaneously performs fine grinding on the surface after rough grinding. The generated debris and coolant flow into the collection groove 6 on the surface of the machine body 1, and then are discharged through the drain pipe 7. After the processing is completed, all drive components are turned off, the bolts 5-4 are loosened and the bearing on the inner support sleeve 5-3 is removed, completing one ultra-precision machining process.

[0042] It should be noted that the above embodiments are only used to illustrate the technical solutions of this disclosure and are not intended to limit it. Although this disclosure has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this disclosure without departing from the spirit and scope of the technical solutions of this disclosure, and all such modifications and substitutions should be covered within the scope of the claims of this disclosure.

Claims

1. An ultraprecision machine for the production of tapered roller bearings, characterized in that, include: The body (1) and the stand (2), wherein the stand (2) is disposed on the body (1); Mounting drive assembly (5), which is mounted on the stand (2); A pair of rectangular seats (3) and a surface treatment component (4), wherein the rectangular seats (3) are both disposed on the body (1) and the surface treatment component (4) is disposed on the body (1) and the rectangular seats (3); The surface treatment component (4) includes a pair of movable shells (4-1). A rotating disk (4-2) driven by electricity is provided at the bottom of the movable shell (4-1). A pair of round rods (4-3) are provided inside the movable shell (4-1). A movable frame (4-4) is slidably connected to the round rods (4-3). An oilstone (4-5) is installed at the front end of the movable frame (4-4). The pair of oilstones (4-5) are for coarse grinding and fine grinding, respectively.

2. The ultraprecision machine for producing tapered roller bearings according to claim 1, characterized in that, Springs (4-6) are fitted at both ends of the round rod (4-3). A transmission rod (4-7) is rotatably connected between the surface of the rotating disk (4-2) and one end of the moving frame (4-4) via a pin. A pair of rotating disks (4-8) are rotatably connected inside the surface of the machine body (1). The rectangular seat (3) is fixed on the rotating disks (4-8).

3. The ultraprecision machine for producing tapered roller bearings according to claim 2, characterized in that, The lower end of the rotating disk (4-8) is provided with a driven gear (4-9), and the top of the machine body (1) is horizontally rotatably connected to a rotating shaft (4-10). The rotating shaft (4-10) is driven to rotate by electricity. Both ends of the rotating shaft (4-10) are provided with drive gears (4-11), and the drive gears (4-11) mesh with the driven gears (4-9).

4. The ultraprecision machine for producing tapered roller bearings according to claim 1, characterized in that, The mounting drive assembly (5) includes a bearing seat (5-1), which is horizontally rotatably connected to the stand (2) by electric drive. The bearing seat (5-1) has a threaded groove (5-2) at its front end and an inner support sleeve (5-3) fitted at its front end. A bolt (5-4) connects the inner support sleeve (5-3) and the threaded groove (5-2).

5. The ultraprecision machine for producing tapered roller bearings according to claim 4, characterized in that, The outer surface of the front end of the bearing seat (5-1) and the outer surface of the inner support sleeve (5-3) are both inclined structural surfaces.

6. The ultraprecision machine for producing tapered roller bearings according to claim 1, characterized in that, The surface of the body (1) is provided with a collection groove (6), and a drain pipe (7) is provided at the top inside the body (1), and the drain pipe (7) is connected to the collection groove (6).

7. The ultraprecision machine for producing tapered roller bearings according to claim 1, characterized in that, The top of the stand (2) is provided with a cooling water pipe (8), and the front end of the cooling water pipe (8) has a double-headed structure.

8. The ultraprecision machine for producing tapered roller bearings according to claim 3, characterized in that, Both the driving gear (4-11) and the driven gear (4-9) are bevel gears, and the pair of rotating disks (4-2) rotate in opposite directions.

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