A high-speed rail bearing cage installation and riveting equipment

Abstract

This invention relates to the field of bearing riveting technology, specifically to a high-speed rail bearing cage installation and riveting equipment, including a base and a riveting system for assembling the bearing cage. The base is equipped with a fixing component for fixing the bearing outer ring. The fixing component includes a fixing seat and a sliding disc. The fixing seat is embedded in the base; the sliding disc is located inside the fixing seat, and a fixing arm is hinged to the sliding disc circumferentially. The top of each fixing arm contacts the top of the bearing outer ring; a sliding groove is formed in the middle of each fixing arm, and a locking rod that slides with the sliding groove is fixedly connected to the fixing seat circumferentially; both the fixing arm and the sliding groove are "<" shaped, and the fixing seat has an opening circumferentially for the movement of the fixing arm. This invention transforms linear motion into a circumferential fixing action through the sliding engagement of the fixing arm and the locking rod. Utilizing the specific shape design of the fixing arm and the sliding groove, the device can automatically adjust its clamping size according to the diameter of different bearing outer rings, thereby improving the applicability of the device.

Description

Technical Field

[0001] This invention relates to the field of bearing riveting technology, and more specifically to a high-speed rail bearing cage installation and riveting equipment. Background Technology

[0002] High-speed rail traction motors are widely used on railway trunk lines due to their high power and strong overload capacity. Because of the high speed and high load requirements of high-speed rail, the cylindrical roller bearing cages of high-speed rail traction motors typically need to possess high strength, good wear resistance, and fatigue resistance. The core function of the bearing cage is to precisely separate the rolling elements, evenly distribute the load, and reduce friction; its riveting quality directly affects the bearing's lifespan and reliability.

[0003] In the prior art, for example, patent CN114198413A discloses a bearing cage riveting device and riveting method. This patent can rivet straight rods without rivets, has a simple structure, is easy to operate, and improves bearing reliability. However, it can only be used for fixed assembly of bearings of one size. When multiple sizes of bearings need to be assembled, multiple devices are required, which reduces the applicability of the device.

[0004] In summary, how to solve the problem that existing equipment can only be used to assemble bearings of one size, which may result in low applicability of the device, has become an urgent problem to be solved in this field. Therefore, it is necessary to propose a high-speed rail bearing cage installation and riveting equipment. Summary of the Invention

[0005] To address the aforementioned problems, this invention provides a high-speed rail bearing cage installation and riveting device. Through the sliding engagement of the fixed arm and the clamping rod, linear motion is transformed into a ring-like fixing action, automating the clamping of the bearing outer ring. Utilizing the specific shape design of the fixed arm and sliding groove, the device can automatically adjust its clamping size according to the diameter of different bearing outer rings, thereby improving the device's applicability.

[0006] To achieve the above objectives, the technical solution of the present invention is as follows: a high-speed rail bearing cage installation and riveting equipment, comprising a base and a riveting system for assembling the bearing cage, wherein the base is provided with a fixing component for fixing the outer ring of the bearing.

[0007] The fixing assembly includes a fixing seat and a sliding plate. The fixing seat is embedded in the base. The sliding plate is located inside the fixing seat. A fixing arm is hinged to the sliding plate along its circumference. The top of the fixing arm contacts the top of the outer ring of the bearing. A sliding groove is opened in the middle of the fixing arm. A locking rod that slides with the sliding groove is fixedly connected to the fixing seat along its circumference. The fixing arm and the sliding groove are both "<" shaped. The fixing seat has an opening along its circumference for the movement of the fixing arm.

[0008] The fixed base is equipped with a drive assembly for driving the sliding disc. The bottom of the fixed base is equipped with a cooling assembly for cooling the bearing cage; the drive assembly drives the cooling assembly to operate synchronously. The fixed base also includes a clamping assembly for holding the outer ring of the bearing and a support assembly for supporting the inner ring of the bearing; the clamping assembly drives the support assembly to operate synchronously.

[0009] The technical principles of the above solution are as follows:

[0010] The drive assembly propels the sliding disc in reciprocating motion. Since the sliding disc is hinged circumferentially to a fixed arm, and each fixed arm has a sliding groove for the locking rod to slide, the fixed arm slides along the locking rod during the reciprocating motion of the sliding disc. Through its special shape design, the fixed arm can clamp or release the outer ring of the bearing above during its sliding process, thereby increasing the fixing effect on the outer ring. The clamping assembly further clamps the outer ring, enhancing its fixing effect. During the movement of the clamping assembly, the support assembly supports the inner ring of the bearing, ensuring good stability of the bearing cage during assembly. After the bearing cage is assembled, the cooling assembly provides cooling for the cage, maintaining its optimal performance.

[0011] The above approach has the following beneficial effects:

[0012] 1. This invention automates the clamping of bearing outer rings by driving a sliding disk to reciprocate through a drive assembly and converting linear motion into a ring-like fixing action through the sliding engagement of a fixed arm and a clamping rod. Utilizing the specific shape design of the fixed arm and sliding groove, the device can automatically adjust its clamping size according to the diameter of different bearing outer rings, thereby improving the device's applicability, ensuring uniform force distribution on bearings of different sizes, and further improving the assembly accuracy of subsequent high-speed rail bearing cages.

[0013] 2. This invention utilizes the design of the clamping assembly to clamp the outer ring of the bearing when the fixed arm is closed, and can maintain the alignment effect of the outer ring of the bearing. Through stable fixation with the fixed arm, it can further reduce the vibration condition of the workpiece during hot riveting, and can maintain its alignment effect as the hot riveting temperature rises, reducing the gap change caused by thermal expansion; thereby improving the stability of the subsequent cylindrical roller bearing cage of high-speed rail traction motor.

[0014] 3. This invention utilizes the synchronous action of the support components to drive the outer ring of the bearing to move synchronously during the clamping and fixing process, thereby simultaneously fixing the inner ring of the bearing. In conjunction with the clamping components to fix the outer ring of the bearing, the inner and outer rings of the bearing are made coaxial, reducing cage deformation caused by off-center load during hot riveting. This helps to ensure the alignment of the cylindrical rollers with the pocket, further improving the yield rate of bearing cage forming.

[0015] Furthermore, the drive assembly includes a controller and a telescopic component. The controller is used to control the telescopic component to extend and retract, and the controller is fixedly connected to the outer wall of the base. The telescopic component is fixedly connected to the bottom of the fixed base, and the output shaft of the telescopic component is fixedly connected to the sliding disk.

[0016] Beneficial effects: Since the telescopic component is fixedly connected to the bottom of the fixed base, and the output shaft of the telescopic component is fixedly connected to the sliding plate, the telescopic component can drive the sliding plate to move, thereby realizing the transmission of power.

[0017] Furthermore, the clamping assembly includes a spring, a horizontal plate, and several clamping arms. The fixed base has an interface along its circumference for the clamping arms to move. The middle part of each clamping arm is hinged to the side wall of the fixed base. The two ends of the spring are fixedly connected to the inner top wall of the fixed base and the horizontal plate, respectively. One end of each clamping arm is located at the bottom of the horizontal plate, and the other end of each clamping arm is in contact with the outer wall of the bearing outer ring.

[0018] The sliding disk is equipped with a release component for releasing the clamping arm from clamping.

[0019] Beneficial effects: Since the two ends of the spring are fixedly connected to the inner top wall of the fixed seat and the horizontal plate respectively, and one end of the clamping arm is located at the bottom of the horizontal plate, and the middle of the clamping arm is hinged to the fixed seat, the horizontal plate can be pushed downward by the elastic force of the spring. When the horizontal plate moves downward, it can drive the clamping arm to clamp the outer ring of the bearing; and it can produce a centering and alignment effect on the outer ring of the bearing, so that the outer ring of the bearing is effectively fixed after centering, thereby further improving the assembly success rate of the cylindrical roller bearing of the traction motor.

[0020] Furthermore, the release assembly includes a vertical rod and a top block. The vertical rod is fixedly connected to the horizontal plate; the top block is fixedly connected to the top of the sliding disk, and the clamping arm is located above the top block; the bottom end of the vertical rod is slidably engaged with the top block and the sliding disk, and the vertical rod is slidably engaged with the fixed base.

[0021] Beneficial effects: Since the vertical rod is fixedly connected to the horizontal plate and the top block is fixedly connected to the top of the sliding plate, the top block can move synchronously as the sliding plate moves upward. When the top block moves upward, it can push the clamping arm to release the outer ring of the bearing, so that the next assembly can continue after the assembly is completed.

[0022] Furthermore, the support assembly includes several first links, second links, and support arms. The first links are circumferentially hinged to the top of the fixed base, and the ends of the first links away from the fixed base are slidably engaged with the upper part of the adjacent support arm. The second links are all hinged to the bottom of the adjacent support arm, and the top of the vertical rod extends to the outside of the fixed base and is hinged to the second link. The middle parts of adjacent first links and second links are hinged to each other, and each second link has a movable groove for the first link to rotate.

[0023] Beneficial effects: Since the first and second connecting rods are hinged together at the middle, and the two ends of the second connecting rod are hinged to the vertical rod and the support arm respectively, and one end of the first connecting rod is hinged to the fixed seat and the other end is slidably engaged with the support arm; therefore, the first and second connecting rods can be extended and retracted when the vertical rod reciprocates vertically. When extended, the inner ring of the bearing can be supported by the support arm, thereby fixing it. In this fixing process, the inner ring of the bearing is coaxial with the outer ring of the bearing, so that the cylindrical roller cage remains aligned during riveting, improving the riveting efficiency of the bearing cage.

[0024] Furthermore, the cooling assembly includes an opening and closing pipe, a baffle, and a moving rod. The opening and closing pipe is embedded and installed inside the fixed base; the baffle is slidably engaged with the inner wall of the opening and closing pipe; one end of the moving rod is fixedly connected to the baffle, and the other end of the moving rod extends to the outside of the opening and closing pipe and is fixedly connected to the output shaft of the telescopic component.

[0025] The side wall of the opening and closing pipe is connected to an input pipe and several output pipes. The end of the input pipe away from the opening and closing pipe is connected to a storage tank for storing nitrogen, and the end of the output pipe away from the opening and closing pipe is connected to the top of the fixed base.

[0026] Beneficial effects: The telescopic output shaft drives the moving rod to move, which in turn moves the baffle synchronously within the opening and closing pipe. The baffle opens the channel between the input and output pipes, allowing nitrogen gas from the storage tank to flow into different output pipes. The nitrogen is then delivered to the top of the fixed base, enabling rapid cooling of the hot-pressed cage and reducing residual stress concentration. Furthermore, the design of multiple output pipes allows the moving rod to open the output pipe channels to varying degrees, providing different output volumes for bearings of different sizes and resulting in high-quality bearing cages after molding.

[0027] Furthermore, buffer layers are fixedly connected to the top of the fixed arm, the top of the clamping arm, and the outer wall of the support arm.

[0028] Beneficial effects: The buffer layer design provides flexible support during bearing clamping and fixation, reducing scratches on metal parts caused by hard contact and thus improving assembly integrity. It also increases the frictional force for clamping and fixing, ensuring a stable clamping effect.

[0029] Furthermore, a stamping robot is fixedly connected to the top of the base, and a hot riveting head is fixedly connected to the end of the stamping robot away from the base; the controller is used to control the operation of the stamping robot and the hot riveting head.

[0030] Beneficial effects: Through the design of the stamping robot and the hot riveting head, the stamping robot has multi-degree-of-freedom motion capabilities, enabling flexible positioning and operation; the hot riveting head fixed on the stamping robot can perform automated riveting of the cage, improving the automated assembly efficiency of the device. After completing the positioning and clamping of the bearing outer ring and bearing inner ring, the stamping robot moves to the designated position according to the preset program, and the hot riveting head begins to work, completing the riveting process by heating and applying pressure.

[0031] Furthermore, a gripping robot is fixedly connected to the outer wall of the base, and a controller is used to control the operation of the gripping robot.

[0032] Beneficial effects: The design of the gripping robot can transfer the workpiece during bearing assembly and transportation. The use of automated control reduces the error of manual operation and improves the assembly effect and accuracy, ensuring that the cylindrical roller bearing cage has good performance.

[0033] Furthermore, the riveting system includes the following modules:

[0034] The information acquisition module is used to acquire bearing parameters, including the outer ring diameter, inner ring diameter, cage diameter, cylindrical roller diameter, and number of cage pockets, and then sends the acquired bearing parameters to the intelligent control module.

[0035] The intelligent control module is used to control the extension length of the telescopic component, the clamping robot for clamping, the heating temperature of the hot riveting head, and the stamping robot for stamping based on the bearing parameters.

[0036] The clamping and fixing module is used to fix the outer ring of the bearing by means of a telescopic component driving the fixing arm according to the bearing parameters, to center and clamp the outer ring of the bearing by means of the clamping arm, and to support the inner ring of the bearing by means of the support arm.

[0037] The drive cooling module is used to release the riveted bearing after the bearing is riveted, and to transfer nitrogen gas to the top of the fixed seat through the opening and closing pipe during the release, so as to cool the bearing cage with nitrogen gas.

[0038] Beneficial effects: By acquiring key bearing parameters, the clamping dimensions can be automatically adjusted according to different bearing specifications, making it suitable for assembling various types of cylindrical roller bearings and improving the system's versatility and adaptability. Furthermore, the entire operation of the device is fully automated, reducing the need for manual intervention, minimizing operator exposure to high-temperature or high-pressure areas, and lowering the risk of workplace injuries.

[0039] Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0040] Figure 1 This is an isometric drawing of the high-speed rail bearing cage mounting and riveting equipment of the present invention.

[0041] Figure 2 This is an isometric view of the fixing seat in the high-speed rail bearing cage mounting and riveting equipment of the present invention.

[0042] Figure 3 This is a cross-sectional view of the fixing seat in the high-speed rail bearing cage mounting and riveting equipment of the present invention.

[0043] Figure 4 This is an isometric view of the interior of the fixed seat in the high-speed rail bearing cage installation and riveting equipment of the present invention.

[0044] Figure 5 This is a cross-sectional view of the cooling component in the high-speed rail bearing cage mounting and riveting equipment of the present invention.

[0045] Figure 6 This is a structural block diagram of the riveting system in the high-speed rail bearing cage installation and riveting equipment of the present invention.

[0046] The reference numerals in the accompanying drawings of the instruction manual include: 1. Base; 2. Fixed base; 3. Sliding disc; 4. Fixed arm; 5. Clamping rod; 6. Electro-hydraulic rod; 7. Spring; 8. Horizontal plate; 9. Clamping arm; 10. Vertical rod; 11. Top block; 12. First connecting rod; 13. Second connecting rod; 14. Support arm; 15. Opening and closing pipe; 16. Baffle; 17. Moving rod; 18. Buffer layer; 19. Stamping robot; 20. Hot riveting head; 21. Clamping robot. Detailed Implementation

[0047] The following detailed description illustrates the specific implementation methods:

[0048] Example 1:

[0049] As attached Figures 1-5 As shown: A high-speed rail bearing cage installation and riveting equipment includes a base 1 and a riveting system for assembling the bearing cage. The base 1 is provided with a fixing component for fixing the outer ring of the bearing.

[0050] The fixing assembly includes a fixing seat 2 and a sliding disk 3. The fixing seat 2 is embedded in the base 1. The sliding disk 3 is located inside the fixing seat 2. The sliding disk 3 is hinged with a fixing arm 4 along its circumference. The top of the fixing arm 4 is in contact with the top of the outer ring of the bearing. The fixing arm 4 has a sliding groove in the middle. The fixing seat 2 is fixedly engaged with a locking rod 5 that slides with the sliding groove along its circumference. The fixing arm 4 and the sliding groove are both in the shape of "<". The fixing seat 2 has an opening along its circumference for the fixing arm 4 to move.

[0051] The fixed base 2 is equipped with a drive assembly for driving the sliding disk 3 to move. The drive assembly includes a controller and a telescopic component. In this embodiment, the telescopic component is an electro-hydraulic rod 6. The controller is used to control the telescopic movement of the electro-hydraulic rod 6. The controller is screwed and fixedly connected to the outer wall of the base 1. The electro-hydraulic rod 6 is bolted and fixedly connected to the bottom of the fixed base 2. The output shaft of the electro-hydraulic rod 6 is fixedly engaged with the sliding disk 3. The controller can be one of a computer, CPU, microcontroller, or PLC controller. In this embodiment, it is a PLC controller.

[0052] The bottom of the mounting base 2 is equipped with a cooling assembly for cooling the bearing cage; the drive assembly is used to drive the cooling assembly to operate synchronously.

[0053] The fixed base 2 is also provided with a clamping assembly for clamping the outer ring of the bearing and a support assembly for supporting the inner ring of the bearing; the clamping assembly is used to drive the support assembly to run synchronously.

[0054] The clamping assembly includes a spring 7, a horizontal plate 8, and several clamping arms 9. The fixed base 2 has an interface for the clamping arms 9 to move along its circumference. The middle part of each clamping arm 9 is hinged to the side wall of the fixed base 2. The two ends of the spring 7 are respectively fixedly connected to the inner top wall of the fixed base 2 and the horizontal plate 8 with screws. One end of each clamping arm 9 is located at the bottom of the horizontal plate 8, and the other end of each clamping arm 9 is in contact with the outer wall of the outer ring of the bearing.

[0055] The sliding disk 3 is equipped with a release assembly for releasing the clamping arm 9 from clamping. The release assembly includes a vertical rod 10 and a top block 11. The vertical rod 10 is fixedly connected to the horizontal plate 8 with screws; the top block 11 is fixedly connected to the top of the sliding disk 3 with screws, and the clamping arm 9 is located above the top block 11; the bottom end of the vertical rod 10 is slidably engaged with the top block 11 and the sliding disk 3, and the vertical rod 10 is slidably engaged with the fixed base 2.

[0056] Combination Figure 4 As shown, the support assembly includes several first connecting rods 12, second connecting rods 13, and support arms 14. The first connecting rods 12 are circumferentially hinged to the top of the fixed base 2, and the other end of each first connecting rod 12 is slidably engaged with the upper part of the adjacent support arm 14. The second connecting rods 13 are all hinged to the bottom of the adjacent support arm 14, and the top of the vertical rod 10 extends to the outside of the fixed base 2 and is hinged to the second connecting rod 13. The middle parts of adjacent first connecting rods 12 and second connecting rods 13 are all hinged to each other, and each second connecting rod 13 has a movable groove for the first connecting rod 12 to rotate.

[0057] Combination Figure 5 As shown, the cooling assembly includes an opening / closing pipe 15, a baffle 16, and a moving rod 17. The opening / closing pipe 15 is embedded in the fixed base 2. The baffle 16 is slidably engaged with the inner wall of the opening / closing pipe 15. One end of the moving rod 17 is fixedly bonded to the baffle 16, and the other end of the moving rod 17 extends to the outside of the opening / closing pipe 15 and is fixedly connected to the output shaft screw of the electric hydraulic rod 6.

[0058] The side wall of the opening and closing pipe 15 is connected to an input pipe and several output pipes. The other end of the input pipe is connected to a storage tank for storing nitrogen. In this embodiment, the storage tank can be detachably connected to the base 1. The other end of each output pipe is connected to the top of the fixed base 2.

[0059] The specific implementation process is as follows:

[0060] Before installing the bearing cage, place the outer and inner rings of the bearing on the fixed base 2 respectively. Since the electro-hydraulic rod 6 is bolted to the bottom of the fixed base 2 and the output shaft of the electro-hydraulic rod 6 is fixedly engaged with the sliding plate 3, the electro-hydraulic rod 6 can drive the sliding plate 3 to move, thereby realizing the transmission of power.

[0061] Because the sliding disk 3 is hinged to a fixed arm 4 along its circumference, and each fixed arm 4 has a sliding groove for the locking rod 5 to slide, the fixed arm 4 can slide along the locking rod 5 during the reciprocating motion of the sliding disk 3. Through its special shape design, the fixed arm 4 can clamp or release the outer ring of the bearing above during its sliding process, thereby increasing the fixing effect on the outer ring of the bearing. Figure 3 For example, when the electric hydraulic rod 6 drives the sliding plate 3 to move upward, the sliding plate 3 pushes the fixed arm 4, causing the fixed arm 4 to move upward, and through the "<" design of the sliding groove, its top expands outward toward the fixed seat 2; conversely, the sliding plate 3 can drive the fixed arm 4 to move downward, and its top moves toward the fixed seat 2, so that the fixed arm 4 clamps and fixes the top of the outer ring of the bearing.

[0062] Since the two ends of the spring 7 are fixedly connected to the inner top wall of the fixed seat 2 and the horizontal plate 8 respectively by screws, and one end of the clamping arm 9 is located at the bottom of the horizontal plate 8, and the middle part of the clamping arm 9 is hinged to the fixed seat 2, the horizontal plate 8 can be pushed downward by the elastic force of the spring 7 during the downward movement of the sliding plate 3. When the horizontal plate 8 moves downward, it can drive the clamping arm 9 to clamp the outer wall of the bearing outer ring; and can produce a centering and alignment effect on the bearing outer ring, so that the bearing outer ring is effectively fixed after centering.

[0063] Because the vertical rod 10 is fixedly connected to the horizontal plate 8 with screws, and the top block 11 is fixedly connected to the top of the sliding plate 3 with screws, the top block 11 can move synchronously as the sliding plate 3 moves upward. When the top block 11 moves upward, it can push the clamping arm 9 to release the outer ring of the bearing, so that the next assembly can continue after the assembly is completed. Figure 3For example, when the sliding disk 3 drives the top block 11 to move upward, the top block 11 pushes the clamping arm 9, causing the clamping arm 9 to rotate around its hinge point with the fixed seat 2, thereby causing the top of the clamping arm 9 to expand upward towards the outside of the fixed seat 2; conversely, the spring 7 pushes the horizontal plate 8 downward, causing the horizontal plate 8 to push the bottom of the clamping arm 9 to rotate downward, and its top end clamps downward towards the fixed seat 2.

[0064] Because the first connecting rod 12 and the second connecting rod 13 are hinged together at their middle parts, and the two ends of the second connecting rod 13 are hinged to the vertical rod 10 and the support arm 14 respectively, and one end of the first connecting rod 12 is hinged to the fixed seat 2, while the other end is slidably engaged with the support arm 14; therefore, when the vertical rod 10 reciprocates vertically, the first connecting rod 12 and the second connecting rod 13 can be extended and retracted. When extended, the support arm 14 can be used to support the inner ring of the bearing, thereby fixing it. During this fixing process, the inner ring and the outer ring of the bearing are coaxial, ensuring that the cylindrical roller cage remains aligned during riveting, thus improving the riveting efficiency of the bearing cage. Figure 2 For example, when the vertical rod 10 moves downward, the first link 12 and the second link 13 expand outward, thereby expanding the support arm 14 outward; conversely, when the vertical rod 10 moves upward, the first link 12 and the second link 13 can drive the support arm 14 to retract inward.

[0065] The electric hydraulic rod 6 drives the moving rod 17 to move. When the moving rod 17 moves, it drives the baffle 16 to move synchronously within the opening and closing pipe 15. When the baffle 16 moves, it opens the channel between the input pipe and the output pipe, thereby directing the nitrogen gas inside the storage tank to different output pipes. The nitrogen gas is then delivered to the top of the fixed seat 2 through the output pipes, thereby using the nitrogen gas to quickly cool the hot-pressed cage and reduce residual stress concentration. Furthermore, the design of multiple output pipes allows the moving rod 17 to open the output pipe channels to different degrees, thus providing different output volumes for bearings of different sizes, resulting in high-quality bearing cages after molding.

[0066] In existing technologies, multiple driving forces are typically used to fix the outer and inner rings of a bearing, making the operation complex and costly. This embodiment utilizes the synchronous action of the support arm 14 to drive the outer ring of the bearing synchronously during clamping and fixing, thereby simultaneously fixing the inner ring. Combined with the clamping arm 9's fixation of the outer ring, this achieves coaxiality between the inner and outer rings, reducing cage deformation caused by uneven loading during hot riveting. This helps ensure the alignment of the cylindrical rollers with the pockets, further improving the yield rate of bearing cage forming. Using a single driving force to achieve multiple fixing effects simplifies operation and further reduces costs.

[0067] The design of clamping arm 9 is used to clamp the outer ring of the bearing when the fixed arm 4 is closed, and can keep the outer ring of the bearing in a centered alignment. Through stable fixation with the fixed arm 4, the vibration of the workpiece during hot riveting can be further reduced, and the alignment effect can be maintained as the hot riveting temperature rises, reducing the gap change caused by thermal expansion; thus, it is beneficial to improve the stability of the cylindrical roller bearing cage of the high-speed rail traction motor.

[0068] The electric hydraulic rod 6 drives the sliding disc 3 to reciprocate, and through the sliding engagement of the fixed arm 4 and the clamping rod 5, the linear motion is converted into a ring-like fixing action, thus automating the clamping of the bearing outer ring. The specific shape design of the fixed arm 4 and the sliding groove allows for automatic adjustment according to the diameter of different bearing outer rings, improving the applicability of the device and ensuring uniform force distribution on bearings of different sizes. This further helps to improve the assembly accuracy of subsequent high-speed rail bearing cages.

[0069] Example 2:

[0070] As attached Figure 2 As shown, the difference from the above embodiment is that the top of the fixed arm 4, the top of the clamping arm 9, and the outer wall of the support arm 14 are all fixedly bonded with a buffer layer 18.

[0071] The specific implementation process is as follows: Utilizing the design of the buffer layer 18, flexible support can be provided for the bearing during clamping and fixing, reducing scratches caused by hard contact with metal parts, thereby improving the integrity of the assembly. It can also increase the frictional force for clamping and fixing, enabling it to maintain a stable clamping effect.

[0072] Example 3:

[0073] As attached Figure 1 As shown, the difference from the above embodiment is that a stamping robot 19 is bolted to the top of the base 1, and a hot riveting head 20 is bolted to the end of the stamping robot 19 away from the base 1; the controller is used to control the operation of the stamping robot 19 and the hot riveting head 20.

[0074] The specific implementation process is as follows: Through the design of the stamping robot 19 and the hot riveting head 20, the stamping robot 19 has multi-degree-of-freedom motion capability, enabling flexible positioning and operation; the hot riveting head 20, fixed on the stamping robot 19, can automatically rivet the cage, improving the automated assembly efficiency of the device. After completing the positioning and clamping of the bearing outer ring and the bearing inner ring, the stamping robot 19 moves to the designated position according to the preset program, and the hot riveting head 20 starts working, completing the riveting process by heating and applying pressure.

[0075] Example 4:

[0076] As attached Figure 1As shown, the difference from the above embodiment is that a clamping robot 21 is bolted to the outer wall of the base 1, and the controller is used to control the operation of the clamping robot 21.

[0077] The specific implementation process is as follows: By utilizing the design of the clamping robot 21, the workpiece can be transferred during bearing assembly and transportation. The automated control method reduces the error of manual operation and improves the assembly effect and assembly accuracy, ensuring that the subsequent cylindrical roller bearing cage has good performance.

[0078] Example 5:

[0079] As attached Figure 6 As shown, the difference from the above embodiment is that the riveting system includes an information acquisition module for collecting information, an intelligent control module for controlling the operation of the control system, a clamping and fixing module for clamping the bearing inner ring and the bearing inner ring, and a drive cooling module for cooling the bearing. All modules are connected by signals.

[0080] The functions of each module are described below:

[0081] The information acquisition module is used to obtain bearing parameters, including the outer ring diameter, inner ring diameter, cage diameter, cylindrical roller diameter, and number of cage pockets. The acquired bearing parameters are then sent to the intelligent control module. In this embodiment, data transmission uses wireless communication technology, preferably 5G. By acquiring key bearing parameters, the clamping dimensions can be automatically adjusted according to different bearing specifications, making it suitable for assembling various types of cylindrical roller bearings and improving the system's versatility and adaptability.

[0082] The intelligent control module controls the extension and retraction length of the electro-hydraulic rod 6, the clamping manipulator 21, the heating temperature of the hot riveting head 20, and the stamping manipulator 19 based on bearing parameters. In this embodiment, the intelligent control module integrates an IIoT interface and primarily optimizes process data based on machine learning. The entire operation of the device adopts a fully automated process, reducing the need for manual intervention and minimizing the operator's exposure to high-temperature or high-pressure areas, thereby reducing the risk of workplace injuries.

[0083] The clamping and fixing module is used to fix the outer ring of the bearing by driving the fixing arm 4 with the electric hydraulic rod 6 according to the bearing parameters, to center and clamp the outer ring of the bearing with the clamping arm 9, and to support the inner ring of the bearing with the support arm 14.

[0084] The drive cooling module is used to release the riveted bearing after the bearing is riveted, and to transfer nitrogen gas to the top of the fixed seat 2 through the opening and closing pipe 15 during the release, so as to cool the bearing cage with nitrogen gas.

[0085] Obviously, the above embodiments are merely illustrative examples for clear explanation and are not intended to limit the implementation. Those skilled in the art will recognize that other variations or modifications can be made based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. However, obvious variations or modifications derived therefrom are still within the scope of protection of this invention.

Claims

1. A high-speed rail bearing cage mounting and riveting device, comprising a base (1), characterized in that, It also includes a riveting system for assembling the bearing cage, and a fixing assembly for fixing the outer ring of the bearing is provided on the base (1); The fixing assembly includes a fixing seat (2) and a sliding plate (3). The fixing seat (2) is embedded in the base (1). The sliding plate (3) is located inside the fixing seat (2). The sliding plate (3) is hinged with a fixing arm (4) along its circumference. The top of the fixing arm (4) is in contact with the top of the outer ring of the bearing. The middle of the fixing arm (4) is opened with a sliding groove. The fixing seat (2) is fixedly connected with a locking rod (5) that slides with the sliding groove along its circumference. The fixing arm (4) and the sliding groove are both in the shape of "á". The fixing seat (2) has an opening along its circumference for the fixing arm (4) to move. The fixed base (2) is provided with a drive assembly for driving the sliding disk (3) to move; The bottom of the fixed base (2) is provided with a cooling assembly for cooling the bearing cage; the drive assembly is used to drive the cooling assembly to run synchronously; The fixed base (2) is also provided with a clamping assembly for clamping the outer ring of the bearing and a support assembly for supporting the inner ring of the bearing; the clamping assembly is used to drive the support assembly to run synchronously; The clamping assembly includes a spring (7), a horizontal plate (8), and several clamping arms (9). The fixed base (2) has an interface for the clamping arms (9) to move along its circumference. The middle part of each clamping arm (9) is hinged to the side wall of the fixed base (2). The two ends of the spring (7) are fixedly connected to the inner top wall of the fixed base (2) and the horizontal plate (8), respectively. One end of each clamping arm (9) is located at the bottom of the horizontal plate (8), and the other end of each clamping arm (9) is in contact with the outer wall of the bearing outer ring. The sliding disk (3) is provided with a release assembly for releasing the clamping arm (9) from clamping; The release assembly includes a vertical rod (10) and a top block (11). The vertical rod (10) is fixedly connected to the horizontal plate (8). The top block (11) is fixedly connected to the top of the sliding disk (3), and the clamping arm (9) is located above the top block (11). The bottom end of the vertical rod (10) is slidably engaged with the top block (11) and the sliding disk (3), and the vertical rod (10) is slidably engaged with the fixed seat (2). The support assembly includes several first links (12), second links (13) and support arms (14). The first links (12) are circumferentially hinged to the top of the fixed seat (2). The end of the first link (12) away from the fixed seat (2) is slidably engaged with the upper part of the adjacent support arm (14). The second links (13) are all hinged to the bottom of the adjacent support arm (14). The top of the vertical rod (10) extends to the outside of the fixed seat (2) and is hinged to the second link (13). The middle parts of the adjacent first links (12) and second links (13) are all hinged to each other. The second links (13) are all provided with movable grooves for the first links (12) to rotate.

2. The high-speed rail bearing cage installation and riveting equipment according to claim 1, characterized in that, The drive assembly includes a controller and a telescopic component. The controller is used to control the telescopic component to extend and retract. The controller is fixedly connected to the outer wall of the base (1). The telescopic component is fixedly connected to the bottom of the fixed base (2). The output shaft of the telescopic component is fixedly connected to the sliding disk (3).

3. The high-speed rail bearing cage installation and riveting equipment according to claim 2, characterized in that, The cooling assembly includes an opening and closing pipe (15), a baffle (16), and a moving rod (17). The opening and closing pipe (15) is embedded in the fixed base (2). The baffle (16) is slidably engaged with the inner wall of the opening and closing pipe (15). One end of the moving rod (17) is fixedly connected to the baffle (16), and the other end of the moving rod (17) extends to the outside of the opening and closing pipe (15) and is fixedly connected to the output shaft of the telescopic component. The side wall of the opening and closing pipe (15) is connected to an input pipe and several output pipes. The end of the input pipe away from the opening and closing pipe (15) is connected to a storage tank for storing nitrogen, and the end of the output pipe away from the opening and closing pipe (15) is connected to the top of the fixed base (2).

4. The high-speed rail bearing cage installation and riveting equipment according to claim 3, characterized in that, The top of the fixed arm (4), the top of the clamping arm (9), and the outer wall of the support arm (14) are all fixedly connected with a buffer layer (18).

5. The high-speed rail bearing cage installation and riveting equipment according to claim 4, characterized in that, A stamping robot (19) is fixedly connected to the top of the base (1), and a hot riveting head (20) is fixedly connected to the end of the stamping robot (19) away from the base (1); the controller is used to control the operation of the stamping robot (19) and the hot riveting head (20).

6. The high-speed rail bearing cage installation and riveting equipment according to claim 5, characterized in that, A gripping robot (21) is also fixedly connected to the outer wall of the base (1), and the controller is used to control the operation of the gripping robot (21).

7. The high-speed rail bearing cage installation and riveting equipment according to claim 6, characterized in that, The riveting system includes the following modules: The information acquisition module is used to acquire bearing parameters, including the outer ring diameter, inner ring diameter, cage diameter, cylindrical roller diameter, and number of cage pockets, and sends the acquired bearing parameters to the intelligent control module. The intelligent control module is used to control the extension length of the telescopic component, the clamping manipulator (21) for clamping, the heating temperature of the hot riveting head (20) and the stamping manipulator (19) for stamping according to the bearing parameters; The clamping and fixing module is used to fix the outer ring of the bearing by driving the fixing arm (4) through the telescopic component according to the bearing parameters, to center and clamp the outer ring of the bearing by using the clamping arm (9), and to support the inner ring of the bearing by using the support arm (14). The drive cooling module is used to release the riveted bearing after the bearing is riveted, and to transfer nitrogen gas to the top of the fixed seat (2) through the opening and closing pipe (15) during the release, and to cool the bearing cage with nitrogen gas.

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