A bearing ring straightening device

Abstract

The utility model relates to bearing processing technical field, especially a bearing ring straightening device. The device includes platform, and the lower end of platform is provided with lower bottom plate, and the upper end of platform is hollowly provided, and is provided with straightening lifting device on lower bottom plate, and the upper end of straightening lifting device is provided with telescopic platform, and two hydraulic rams are provided on telescopic platform, and the cylinder body one end of hydraulic ram is provided with first top block support seat, and first top block is arranged between two first top block support seats, and the telescopic rod one end of hydraulic ram is sequentially provided with shaping assembly and second top block support seat, and second top block is arranged between two second top block support seats, and top rod assembly is arranged between first top block and second top block, and positioning assembly is arranged on platform, and the straightening device further includes controller. The utility model multiple shaping top block can satisfy the straightening of different size workpieces, and top rod assembly can assist hydraulic equipment to shape workpiece, guarantees the straightening stability, has stable and reliable, and the characteristics such as wide application range.

Description

Technical Field

[0001] This utility model relates to the field of bearing processing technology, and in particular to a bearing ring straightening device. Background Technology

[0002] Bearing ring machining is a crucial step in bearing manufacturing, significantly impacting the overall performance and lifespan of the bearing. The manufacturing process includes forging, heat treatment, and grinding. Heat treatment is a key step in improving the internal quality of the bearing ring; however, bearing rings are highly susceptible to deformation after heat treatment, primarily manifesting as ellipticity with inconsistent degrees of ellipticity. Before tempering, the tolerance range must be ensured: diameter not exceeding 1.5 mm and planar warping not exceeding 1 mm. Therefore, post-heat treatment straightening is a critical step, directly affecting the processing efficiency and quality of subsequent processes. Currently, excessively deformed bearing rings are typically handled by scrapping or manual straightening. However, direct scrapping increases processing costs, while manual straightening usually relies on experience, resulting in low efficiency and unreliable quality.

[0003] Chinese patent application number 202223414725.4 discloses an elliptical straightening device for an oil boom rotary bearing seat ring, including a lifting drive mechanism, a lifting device, and an arc-shaped lifting assembly. The lifting device is powered by the lifting drive mechanism to extend and retract. The arc-shaped lifting assembly includes an upper arc-shaped lifting assembly and a lower arc-shaped lifting assembly. The lower end of the lifting device is mounted on the lower arc-shaped lifting assembly. The upper end of the lifting device is a telescopic rod end, connected to the upper arc-shaped lifting assembly. The upper and lower arc-shaped lifting assemblies can press against the inner wall of the oil boom rotary bearing seat ring to be straightened. This straightening device, by using the arc-shaped lifting assembly, can press against the inner wall of the elliptical oil boom rotary bearing seat ring to be straightened. By applying a pushing force to the arc-shaped lifting assembly, the oil boom rotary bearing seat ring is pushed, achieving the purpose of repairing and straightening the oil boom rotary bearing seat ring. However, its application still has the following problems:

[0004] 1. During the repair process of bearing housing rings, it is necessary to manually extend the hydraulic jack telescopic rod by pressing the manual hydraulic pump to adjust the tensile deformation in the direction of the minor axis of the ellipse of the bearing housing ring. Manual operation is time-consuming and labor-intensive, and it is impossible to guarantee the production progress and the quality rate of processing. In addition, for bearing housing rings of different sizes, it is necessary to design correction devices with different parameters, which is costly and has certain limitations in application. At the same time, it cannot correct the planar warping deformation of the bearing housing ring.

[0005] 2. When the ellipticity of the bearing housing ring is zero, it is necessary to continue pushing the bearing housing ring to generate a reverse ellipticity of about 0.1mm. The elliptic correction device can only be removed after 24 hours. In dealing with this problem, the existing correction device is not perfect and does not have the function of assisting hydraulic equipment in correction. If the hydraulic equipment fails during the correction process, it will affect the correction work, affect the correction stability, reduce the correction efficiency, and also reduce the service life of the hydraulic equipment.

[0006] 3. During the straightening process, the bearing ring may need to be straightened at different positions. However, the existing straightening devices do not have a structure to assist in the adjustment of the bearing ring position. For larger bearing rings, this can lead to difficulties in position adjustment, cumbersome operation, and reduced straightening efficiency.

[0007] Therefore, there is an urgent need to provide a bearing ring straightening device that is highly efficient, widely applicable, and easy to operate, in order to overcome the shortcomings of existing technologies. Utility Model Content

[0008] The purpose of this invention is to address the technical problems of existing bearing ring straightening devices, such as low straightening efficiency, limited application, the need for the hydraulic jack extension rod to remain in an extended state when the bearing ring ellipticity is zero (which reduces its service life after prolonged operation), and the inconvenience and cumbersome operation of adjusting the bearing ring position during the straightening process. This invention provides a bearing ring straightening device with a dual-cylinder synchronous drive mechanism to straighten the workpiece. Multiple shaping blocks can meet the straightening needs of bearing rings of different sizes. The push rod assembly assists the hydraulic equipment in shaping the workpiece, ensuring straightening stability, increasing the service life of the hydraulic equipment, and improving straightening efficiency. This device is easy to operate, stable and reliable, widely applicable, and easy to maintain.

[0009] The technical solution adopted by this utility model to achieve the above-mentioned objective is as follows: a bearing ring straightening device, including a platform, a lower base plate at the lower end of the platform, and a hollow upper end of the platform. A straightening lifting device is provided on the lower base plate, and a telescopic platform is provided at the upper end of the straightening lifting device. Two hydraulic cylinders are provided on the telescopic platform. A first top block support is provided at one end of the cylinder body of the hydraulic cylinder, and a first top block is provided between the two first top block supports. A shaping component and a second top block support are sequentially provided at one end of the telescopic rod of the hydraulic cylinder, and a second top block is provided between the two second top block supports. A top rod assembly is provided between the first top block and the second top block. A positioning component is provided on the platform. The straightening device also includes a controller, which is electrically connected to the hydraulic cylinders.

[0010] Furthermore, the shaping component includes multiple shaping top blocks, each with a dovetail groove on both sides. Adjacent shaping top blocks are connected by double dovetail keys, and a single dovetail key is provided in the dovetail groove on the outer side of the shaping top blocks at both ends.

[0011] Furthermore, the push rod assembly includes a double-threaded sleeve and two shaped screws. The threads of the two shaped screws are arranged in opposite directions. The two shaped screws are respectively threaded to both ends of the double-threaded sleeve. The ends of the two shaped screws away from the double-threaded sleeve have a spherical structure.

[0012] Furthermore, the positioning assembly includes a first lead screw, a second lead screw, and a gear shaft. The first and second lead screws are rotatably mounted on opposite sides of the platform. The first and second lead screws have opposing threads, and sliding seats are threaded onto the opposing threads. The sliding seats slide in cooperation with sliding grooves on the platform. A vertical centering roller is mounted on the sliding seats. A first gear is mounted on one end of each of the first and second lead screws, and an adjusting handwheel is mounted on the end of the first lead screw near the first gear. The gear shaft is positioned between the first and second lead screws, and second gears that mesh with the first gear are mounted on both ends of the gear shaft.

[0013] Furthermore, the orthopedic lifting device includes a hydraulic motor, a lifting adjusting screw, a lifting adjusting screw support, a lifting adjusting seat, a support seat, a connecting rod, and a lifting support. The hydraulic motor is located at one end of the platform and is electrically connected to the controller. The output end of the hydraulic motor is connected to the lifting adjusting screw. The lifting adjusting screw is rotatably mounted on two lifting adjusting screw supports, which are symmetrically mounted on the lower base plate. The two ends of the lifting adjusting screw have reversed threads, and the reversed threads are respectively threaded to the lifting adjusting seats. The two ends of the lifting adjusting seats are respectively connected to the sliding grooves of the support seat and hinged to one end of the connecting rod. The support seat is mounted on the lower base plate, and the other end of the connecting rod is hinged to the lifting support. The lifting support is mounted at the lower end of the telescopic platform.

[0014] Furthermore, the telescopic platform includes an upper base plate, a sliding plate, a telescopic adjusting screw, a telescopic adjusting screw support, a telescopic adjusting seat, a long connecting rod, a short connecting rod, a top rod, and a telescopic support. The lower end of the upper base plate is symmetrically equipped with telescopic adjusting screw supports. Telescopic adjusting screws are rotatably mounted on the two telescopic adjusting screw supports. The two ends of the telescopic adjusting screw have reversed threads, and telescopic adjusting seats are threaded onto these reversed threads. The two ends of the telescopic adjusting seats are respectively hinged to one end of a long connecting rod, and the middle parts of the two long connecting rods on the same side are hinged to each other. The other end of the long connecting rod is hinged to one end of a short connecting rod, and the other end of the short connecting rod is hinged to one end of a top rod. The other end of the top rod is connected to the telescopic support. The telescopic support is installed at the lower end of the sliding plate, and the sliding plate is slidably mounted on the upper end of the upper base plate.

[0015] Furthermore, pressure plates are respectively provided on both sides of the upper base plate, and a guide groove is formed between the pressure plate and the upper base plate. The slide plate is slidably engaged with the guide groove. A height pointer frame is provided on the pressure plate located on one side of the upper base plate, and a height scale that cooperates with the height pointer frame is provided on the platform.

[0016] Furthermore, the platform is also equipped with a roller assembly, which includes four rollers. The four rollers are distributed in pairs on both sides of the platform and located outside the positioning assembly. The rollers have a conical structure, and the two rollers on one side of the platform are symmetrically distributed, with the smaller diameter end of the rollers facing inward.

[0017] Furthermore, both the inner sides of the first and second top blocks have grooves, and the upper ends of both the first and second top blocks are provided with lifting rings and two pressure plates, with the lifting rings located between the two pressure plates.

[0018] Furthermore, walkways are provided on both sides of the platform, and steps are provided on the sides of the walkways.

[0019] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0020] (1) The present invention provides a bearing ring straightening device, which is driven by a dual hydraulic cylinder to push the workpiece synchronously to straighten it. Multiple shaping top blocks are set between the hydraulic cylinder and the top block, which can meet the straightening of bearing rings of different sizes. The top rod assembly between the top blocks can assist the hydraulic equipment to shape the workpiece, ensure the stability of the straightening, and increase the service life of the hydraulic equipment. The setting of the positioning component can facilitate the alignment and rotation of the bearing ring, thereby adjusting the position of the top point, which helps to improve the straightening efficiency. The device has the characteristics of easy operation, stability and reliability, wide applicability, and easy maintenance.

[0021] (2) The present invention provides a bearing ring straightening device. The shaping top block has multiple specifications and can be arbitrarily combined and adjusted according to the workpiece size, so as to meet the straightening of bearing rings of different specifications and sizes, and has a wider range of applications. Multiple shaping top blocks are connected by double dovetail keys, which is convenient to operate, has a firm and reliable connection, and can ensure that the workpiece is straightened smoothly.

[0022] (3) The present invention provides a bearing ring straightening device. The shaping screws are made of left and right helical screws. By rotating the double threaded sleeve, the screws on both sides can be extended and retracted at the same time. The length of the tooling can be adjusted according to the specifications of the bearing ring. It can be put into the furnace with the workpiece. The tops at both ends of the shaping screw are spherical, which facilitates automatic self-alignment.

[0023] (4) The bearing ring straightening device of this utility model has a gear shaft in the positioning component that can ensure the synchronous rotation of the screws on both sides of the platform, ensure the synchronous adjustment of the centering roller and the symmetry of its position, and thus ensure the accuracy of the straightening. At the same time, through the cooperation of the straightening lifting device and the telescopic platform, the bearing ring with a diameter in the range of 900 to 2000 mm and a height in the range of 200 to 400 mm can be straightened in one go, and the warping deformation is within 1 mm within the tolerance range.

[0024] (5) The present invention provides a bearing ring straightening device, which sets a tapered roller on a platform, and two rollers on one side of the platform are symmetrically arranged with their minor diameters facing inward. At the same time, the rotation angle of the workpiece can be easily adjusted by the cooperation of the positioning components. Attached Figure Description

[0025] Figure 1 This is a structural diagram of the bearing ring straightening device of this utility model.

[0026] Figure 2 This is a structural diagram of the positioning component of the bearing ring straightening device of this utility model.

[0027] Figure 3 This is a structural diagram of the telescopic platform of the bearing ring straightening device of this utility model.

[0028] Figure 4 This is a structural diagram of the bearing ring straightening and lifting device of this utility model.

[0029] Figure 5 This is a schematic diagram illustrating the application of the bearing ring straightening device of this utility model.

[0030] In the diagram: 1. Platform, 2. Lower base plate, 3. Hydraulic cylinder, 4. First top block support, 5. First top block, 6. Second top block support, 7. Lifting ring, 8. Second top block, 9. Pressure plate, 10. Double threaded sleeve, 11. Shaping screw, 12. Electrical control box, 13. First shaping top block, 14. Second shaping top block, 15. Third shaping top block, 16. Fourth shaping top block, 17. Double dovetail key, 18. Single dovetail key, 19. First lead screw, 20. Second lead screw, 21. Gear shaft, 22. Sliding seat, 23. Centering roller, 24. First gear, 25. Second gear, 26. Adjustment... 27. Handwheel, 28. Upper base plate, 29. Slide plate, 30. Telescopic adjusting screw, 31. Telescopic adjusting screw support, 32. Telescopic adjusting seat, 33. Long connecting rod, 34. Short connecting rod, 35. Top rod, 36. Telescopic support, 37. Pressure plate, 38. Height pointer holder, 39. Height gauge, 40. Length indicator, 41. Hydraulic motor, 42. Lifting adjusting screw, 43. Lifting adjusting screw support, 44. Support seat, 45. Connecting rod, 46. Lifting support, 47. Idler roller, 48. Walkway, 49. Step, 50. Handwheel, 51. Bearing ring. Detailed Implementation

[0031] The present invention will now be described in detail with reference to the accompanying drawings and embodiments, but the present invention is not limited to the specific embodiments.

[0032] like Figure 1 The bearing ring straightening device shown includes a platform 1, a lower base plate 2 at the lower end of the platform 1, and an open upper end to provide working space for the shaping fixture. A straightening lifting device is mounted on the lower base plate 2, and a telescopic platform is mounted on the upper end of the straightening lifting device. Two hydraulic cylinders 3 are mounted on the telescopic platform, each equipped with an encoder. A first top block support 4 is mounted at one end of the cylinder body of each hydraulic cylinder 3, and a first top block 5 is positioned between the two first top block supports 4. The telescopic rod of the hydraulic cylinder 3... One end is provided with a shaping component and a second top block support 6 in sequence. A lifting ring 7 is provided on the first top block support 4 and the second top block support 6 respectively. A second top block 8 is provided between the two second top block supports 6. The inner sides of the first top block 5 and the second top block 8 are both provided with grooves. The upper ends of the first top block 5 and the second top block 8 are provided with a lifting ring 7 and two pressure plates 9. The lifting ring 7 is located between the two pressure plates 9. The setting of the lifting ring 7 facilitates the lifting and transportation of the tooling. The pressure plates 9 can press the workpiece tightly during the straightening process to prevent it from warping and deforming.

[0033] A push rod assembly is provided between the first top block 5 and the second top block 8. The push rod assembly is pressed against the grooves of the first top block 5 and the second top block 8. The push rod assembly includes a double-threaded sleeve 10 and two shaping screws 11. The threads of the two shaping screws 11 are arranged in opposite directions. The two shaping screws 11 are respectively threaded to both ends of the double-threaded sleeve 10. The ends of the two shaping screws 11 away from the double-threaded sleeve 10 are spherical. The shaping screws 11 are all made of Tr70×3 left and right turn screws. By rotating the double-threaded sleeve 10, the screws on both sides can be extended and retracted at the same time. The length of the tooling can be adjusted according to the specifications of the bearing ring. It can be put into the furnace with the workpiece. The tops at both ends are spherical, which facilitates automatic self-alignment. By setting the push rod assembly, the hydraulic equipment can be assisted in shaping the workpiece, ensuring stable straightening, improving straightening efficiency, and increasing the service life of the hydraulic equipment.

[0034] The orthopedic device also includes a controller, which is electrically connected to the hydraulic cylinder 3. The controller is located inside the electrical control box 12. The electrical control box 12 is equipped with start, stop, cylinder extension, cylinder retraction, platform rise, platform fall, and emergency buttons. There is a digital display screen in the middle of the control panel, which mainly displays the extension and retraction length of the cylinder and the lifting height of the platform. The electrical control box 12 is movable and has casters underneath, which can be adjusted as needed to facilitate more effective operation by the operator.

[0035] Preferably, the shaping component includes multiple shaping top blocks, each with a dovetail groove on both sides, and adjacent shaping top blocks are connected by double dovetail keys. A single dovetail key is provided in the dovetail groove on the outer side of the shaping top blocks at both ends.

[0036] In this embodiment, the multiple shaping top blocks include a first shaping top block 13, a second shaping top block 14, a third shaping top block 15, and a fourth shaping top block 16. The first shaping top block 13, the two second shaping top blocks 14, the third shaping top block 15, and the fourth shaping top block 16 are connected sequentially by double dovetail keys 17. A single dovetail key 18 is provided in the dovetail groove on the side of the first shaping top block 14 near the extension rod of the hydraulic cylinder 3, and a single dovetail key 18 is provided in the dovetail groove on the side of the fourth shaping top block 16 near the second top block support 6. It should be noted that the combination of the shaping top blocks can be adaptively adjusted according to the size of the bearing ring, and is not limited to the combination in this embodiment.

[0037] By setting multiple shaping top blocks between the hydraulic cylinder and the top block support, and the shaping top blocks are available in multiple specifications, they can be arbitrarily combined and adjusted according to the workpiece size, thereby meeting the shaping needs of bearing rings of different specifications and sizes, and having a wider range of applications. The multiple shaping top blocks are connected by a double dovetail key combination, which is convenient to operate, has a firm and reliable connection, and can ensure the smooth shaping of the workpiece.

[0038] like Figure 2 As shown, a positioning assembly is provided on the platform. The positioning assembly includes a first lead screw 19, a second lead screw 20, and a gear shaft 21. The first lead screw 19 and the second lead screw 20 are rotatably disposed on both sides of the platform 1. The first lead screw 19 and the second lead screw 20 have threads arranged in opposite directions. Sliding seats 22 are threadedly connected to the threads arranged in opposite directions. The sliding seats 22 are slidably engaged with the sliding grooves on the platform 1. Vertical centering rollers 23 are provided on the sliding seats 22. A first gear 24 is also provided at one end of the first lead screw 19 and the second lead screw 20. An adjusting handwheel 26 is provided at the end of the first lead screw 19 near the first gear 24. The gear shaft 21 is disposed between the first lead screw 19 and the second lead screw 20. A second gear 25 that meshes with the first gear 24 is provided at both ends of the gear shaft 21.

[0039] By setting positioning components on the platform, the bearing rings are easily aligned and rotated, thereby adjusting the vertex position and improving straightening efficiency. The gear shaft ensures the synchronous rotation of the lead screws on both sides of the platform, guaranteeing the synchronous adjustment of the centering rollers and the symmetry of their positions, thus ensuring the accuracy of straightening. At the same time, through the cooperation of the straightening lifting device and the telescopic platform, bearing rings with diameters ranging from 900 to 2000 mm and heights ranging from 200 to 400 mm can be straightened in one go, achieving tolerances within 1 mm of warpage deformation. It is easy to operate and maintain.

[0040] Preferably, such as Figure 3 The telescopic platform shown includes an upper base plate 27, a sliding plate 28, a telescopic adjusting screw 29, a telescopic adjusting screw support 30, a telescopic adjusting seat 31, a long connecting rod 32, a short connecting rod 33, a top rod 34, and a telescopic support 35. The telescopic adjusting screw supports 30 are symmetrically installed at the lower end of the upper base plate 27. The telescopic adjusting screw 29 is rotatably installed on the two telescopic adjusting screw supports 30. The two ends of the telescopic adjusting screw 29 have reversed threads, which are threaded to the telescopic adjusting seats 31. The two ends of the telescopic adjusting seats 31 are hinged to one end of the long connecting rod 32, and the two long connecting rods 32 on the same side are hinged to each other at their middle parts. The other end of the long connecting rod 32 is hinged to one end of the short connecting rod 33, and the other end of the short connecting rod 33 is hinged to one end of the top rod 34. The other end of the top rod 34 is connected to the telescopic support 35. The telescopic support 35 is installed at the lower end of the sliding plate 28, and the sliding plate 28 is slidably mounted on the upper end of the upper base plate 27.

[0041] A pressing plate 36 is provided on both sides of the upper base plate 27. A guide groove is formed between the pressing plate 36 and the upper base plate 27. The slide plate 28 slides in the guide groove. A height pointer frame 37 is provided on the pressing plate 36 located on one side of the upper base plate 27. A height scale 38 that cooperates with the height pointer frame 37 is provided on the platform 1.

[0042] Preferably, length markers 39 are also provided on both sides of the platform 1 to facilitate observation of the adjustment length of the orthopedic telescopic device.

[0043] Preferably, such as Figure 4 The orthopedic lifting device shown includes a hydraulic motor 40, a lifting adjusting screw 41, a lifting adjusting screw support 42, a lifting adjusting seat 43, a support seat 44, a connecting rod 45, and a lifting support 46. The hydraulic motor 40 is located at one end of the platform 1 and is electrically connected to the controller. The output end of the hydraulic motor 40 is connected to the lifting adjusting screw 41. The lifting adjusting screw 41 is rotatably mounted on two lifting adjusting screw supports 42. The two lifting adjusting screw supports 42 are symmetrically mounted on the lower base plate 2. The two ends of the lifting adjusting screw 41 have reversed threads, and the lifting adjusting seats 43 are threaded onto the reversed threads respectively. The two ends of the lifting adjusting seats 43 are respectively connected to the sliding grooves of the support seat 44 and are hinged to one end of the connecting rod 45. The support seat 44 is mounted on the lower base plate 2. The other end of the connecting rod 45 is hinged to the lifting support 46. The lifting support 46 is mounted on the lower end of the upper base plate 27.

[0044] The straightening lifting device and telescopic platform can adapt to the straightening needs of workpieces of different sizes. The linkage adjustment structure is convenient to operate, low in cost, and easy to maintain.

[0045] Platform 1 is also equipped with a roller assembly, which includes four rollers 47. The four rollers 47 are distributed in pairs on both sides of platform 1 and located outside the positioning assembly. The rollers 47 have a conical structure. The two rollers 47 on one side of platform 1 are symmetrically distributed, and the small diameter end of the rollers 47 is set inward. Because the workpiece is large and heavy, conical rollers 47 are set on platform 1, and the small diameter of the two rollers 47 on one side of platform 1 is symmetrically set inward. At the same time, with the cooperation of the positioning assembly, it is easy to adjust the rotation angle of the workpiece.

[0046] Platform 1 is also provided with walkways 48 on both sides, and steps 49 are provided on the sides of walkways 48 to facilitate operators to go up and down to operate the orthopedic device.

[0047] A hydraulic station (not shown in the figure) is installed below platform 1. The rated pressure of the hydraulic station is 16MPa and the motor power is 5KW, which provides power to two hydraulic cylinders 3 and one hydraulic motor 40 respectively.

[0048] The bearing ring straightening device of this utility model is used as follows:

[0049] 1. For example Figure 5As shown, before use, the operator needs to confirm the inner diameter of the bearing ring 51. Based on the inner diameter, adjust the length of the telescopic platform. The total length must be less than the inner diameter of the bearing ring 51. Install the handwheel 50 on the telescopic adjustment screw 29. Turn the handwheel 50 to drive the telescopic adjustment screw 29 to rotate. The telescopic adjustment screw 29 drives the telescopic adjustment seat 31 to move, thereby driving the linkage mechanism to move telescopically, achieving the purpose of telescopic extension and retraction of the platform 1. At the same time, observe the adjustment length of the telescopic platform through the length mark 39. The platform telescopic range is 1200-1850mm. After the telescopic platform is adjusted, the handwheel 50 must be removed before the straightening lifting device can be adjusted.

[0050] 2. Place the straightening fixture on the telescopic platform, and place the shaping top block in the appropriate position. The shaping top block can be pre-adjusted according to the different diameters of the workpiece, and should be appropriately smaller than the inner diameter of the workpiece.

[0051] 3. Place the bearing ring 51 that needs to be straightened, hoist the bearing ring 51 to the position of the straightening device roller 47, adjust the adjusting handwheel 26 to drive the centering roller 23 to stick to the inner wall of the bearing ring 51, and adjust the bearing ring 51 to the corresponding position by adjusting the centering roller 23.

[0052] 4. Based on the pre-drawn correction points on the bearing ring 51, the hydraulic motor 40 drives the lifting adjustment screw 41 to rotate. The lifting adjustment screw 41 drives the lifting adjustment seat 43 to move accordingly, thereby driving the linkage mechanism to extend and retract, achieving the purpose of platform lifting. The lifting range is 400mm. At the same time, the height position of the correction lifting device can be observed through the height scale 38.

[0053] 5. After the top block is aligned with the straightening point, operate the hydraulic equipment and operate the ejection device according to the detected ejection amount to eject the deformed workpiece, thereby achieving the straightening function. By reading the data on the display screen, the ejection parameters can be controlled to achieve the expected straightening purpose.

[0054] 6. After the orthopedic action is completed, push the shaping screw 11 into the center groove of the top block, tighten it with a pry bar or wrench, and press the pressure plate 9 to prevent the shaping screw 11 from falling off.

[0055] 7. After the shaping screw 11 is shaped, the oil cylinder is retracted, the outer diameter of the bearing ring 51 is measured, and after passing the measurement, the shaping fixture and the workpiece are hoisted to the next process position to carry out the next operation, thus completing the purpose of straightening and limiting movement.

[0056] This utility model discloses a bearing ring straightening device, which can be placed in a corresponding position according to the site. The driving method is hydraulic cylinder push, with two cylinders extending synchronously. The cylinders are equipped with encoders, and the extension and retraction length of the cylinders are fed back by the encoders and displayed on the control cabinet display screen, so as to facilitate reading the corresponding position parameters. By knowing the ejection value through the parameter display, the over-extension range can be determined, so as to achieve the effect of correcting excessive force and ensuring that the straightening is greater than the theoretical value, thus avoiding the loss of the elastic deformation of the shaping tool. The device is easy to operate, stable and reliable, widely applicable, and easy to maintain.

[0057] The above description, in conjunction with preferred technical solutions, provides a further detailed explanation of this utility model. It should not be construed that the specific implementation of the utility model is limited to these descriptions. For those skilled in the art, simple deductions and substitutions can be made without departing from the concept of this utility model, and all such modifications and substitutions should be considered within the scope of protection of this utility model.

Claims

1. A bearing ring straightening device, characterized in that: The device includes a platform with a lower base plate at its lower end and an open upper end. A straightening and lifting device is mounted on the lower base plate, and a telescopic platform is mounted on the upper end of the straightening and lifting device. Two hydraulic cylinders are mounted on the telescopic platform. A first top block support is mounted at one end of each hydraulic cylinder body, and a first top block is positioned between the two first top block supports. A shaping component and a second top block support are sequentially mounted at one end of the telescopic rod of each hydraulic cylinder, and a second top block is positioned between the two second top block supports. A top rod assembly is positioned between the first and second top blocks. A positioning component is mounted on the platform. The straightening device also includes a controller electrically connected to the hydraulic cylinders.

2. The bearing ring straightening device according to claim 1, characterized in that: The shaping component includes multiple shaping top blocks, each with a dovetail groove on both sides. Adjacent shaping top blocks are connected by double dovetail keys, and a single dovetail key is provided in the dovetail groove on the outer side of the shaping top blocks at both ends.

3. The bearing ring straightening device according to claim 1, characterized in that: The push rod assembly includes a double-threaded sleeve and two shaped screws. The threads of the two shaped screws are arranged in opposite directions. The two shaped screws are threaded to both ends of the double-threaded sleeve, and the ends of the two shaped screws away from the double-threaded sleeve have a spherical structure.

4. The bearing ring straightening device according to claim 1, characterized in that: The positioning assembly includes a first lead screw, a second lead screw, and a gear shaft. The first and second lead screws are rotatably mounted on opposite sides of the platform. The first and second lead screws have opposing threads, and sliding seats are threaded onto the opposing threads. The sliding seats slide in cooperation with sliding grooves on the platform. A vertical centering roller is mounted on the sliding seats. A first gear is mounted on one end of each of the first and second lead screws, and an adjusting handwheel is mounted on the end of the first lead screw near the first gear. The gear shaft is positioned between the first and second lead screws, and second gears that mesh with the first gear are mounted on both ends of the gear shaft.

5. A bearing ring straightening device according to claim 1, characterized in that: The orthopedic lifting device includes a hydraulic motor, a lifting adjusting screw, a lifting adjusting screw support, a lifting adjusting seat, a support seat, a connecting rod, and a lifting support. The hydraulic motor is located at one end of the platform and is electrically connected to a controller. The output end of the hydraulic motor is connected to the lifting adjusting screw. The lifting adjusting screw is rotatably mounted on two lifting adjusting screw supports, which are symmetrically mounted on the lower base plate. The two ends of the lifting adjusting screw have reversed threads, and the reversed threads are respectively threaded to the lifting adjusting seats. The two ends of the lifting adjusting seats are respectively connected to the sliding grooves of the support seat and hinged to one end of the connecting rod. The support seat is mounted on the lower base plate, and the other end of the connecting rod is hinged to the lifting support. The lifting support is mounted at the lower end of the telescopic platform.

6. The bearing ring straightening device according to claim 1, characterized in that: The telescopic platform includes an upper base plate, a sliding plate, telescopic adjusting screws, telescopic adjusting screw supports, telescopic adjusting seats, long connecting rods, short connecting rods, a top rod, and a telescopic support. Telescopic adjusting screw supports are symmetrically installed on the lower end of the upper base plate. Telescopic adjusting screws are rotatably installed on the two telescopic adjusting screw supports. The two ends of the telescopic adjusting screws have reversed threads, and telescopic adjusting seats are threaded onto these reversed threads. The two ends of the telescopic adjusting seats are hinged to one end of a long connecting rod, and the two long connecting rods on the same side are hinged together at their middle sections. The other end of each long connecting rod is hinged to one end of a short connecting rod, and the other end of the short connecting rod is hinged to one end of a top rod. The other end of the top rod is connected to the telescopic support. The telescopic support is installed at the lower end of the sliding plate, and the sliding plate is slidably mounted on the upper end of the upper base plate.

7. A bearing ring straightening device according to claim 6, characterized in that: A clamping plate is provided on both sides of the upper base plate, and a guide groove is formed between the clamping plate and the upper base plate. The slide plate slides in cooperation with the guide groove. A height pointer frame is provided on the clamping plate located on one side of the upper base plate, and a height scale that cooperates with the height pointer frame is provided on the platform.

8. A bearing ring straightening device according to claim 1, characterized in that: The platform is also equipped with a roller assembly, which includes four rollers. The four rollers are distributed in pairs on both sides of the platform and located outside the positioning assembly. The rollers have a conical structure, and the two rollers on one side of the platform are symmetrically distributed with the smaller diameter end of the roller facing inward.

9. A bearing ring straightening device according to claim 1, characterized in that: The inner sides of the first and second top blocks are both grooved, and the upper ends of the first and second top blocks are provided with a lifting ring and two pressure plates, with the lifting ring located between the two pressure plates.

10. A bearing ring straightening device according to claim 1, characterized in that: The platform is also equipped with walkways on both sides, and steps are provided on the sides of the walkways.

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