A grinding device for processing bearing rollers

Abstract

The present invention relates to the technical field of grinding equipment, and specifically to a grinding device for processing bearing rollers, comprising a frame and a cylindrical grinding wheel, wherein the working surface of the cylindrical grinding wheel is a spherical arc surface, and further comprising: a rotating frame, the rotating frame being swung around a first axis and arranged on the frame, the rotating frame being used to mount a roller body; the center line of the cylindrical grinding wheel, the center line of the roller body and the first axis being arranged perpendicularly in pairs; the plane where the first axis and the center line of the cylindrical grinding wheel are located is the middle plane, the swing amplitude of the rotating frame around the first axis is symmetrically distributed on both sides of the middle plane, and the roller body is caused to extend beyond the edge of the cylindrical grinding wheel as it swings; the base circle center of the roller body coincides with the center of the spherical arc surface, and the first axis passes through the base circle center of the roller body. The present invention ensures uniform wear on the working surface of the cylindrical grinding wheel by allowing the roller body to pass through the entire spherical arc surface during the swinging of the rotating frame.

Description

Technical Field

[0001] The present invention relates to the technical field of grinding equipment, in particular to a grinding device for processing bearing rollers. Background Art

[0002] As a key component in mechanical equipment, the performance and quality of bearings directly impact the equipment's operating efficiency and lifespan. In the manufacturing process of spherical bearings, the roller, one of its core components, is crucial for its precision and surface quality. Grinding, a key process in roller processing, not only ensures the roller's dimensional and shape accuracy but also improves its surface quality, thereby enhancing the overall performance of the bearing. In spherical bearings, a good fit must be maintained between the roller's base circle and the inner arc of the outer ring. This fit not only determines the bearing's spherical performance but also affects its load-bearing capacity and smooth operation. The roller's base circle refers to the reference circle of the contact area between the roller and the inner and outer ring raceways. The inner arc of the outer ring refers to the portion of the bearing's outer ring that contacts the roller and is typically designed with a spherical shape to match the roller's spherical base circle.

[0003] The Chinese patent document with authorization announcement number CN209793395U discloses a grinding mechanism for the curved surface of a bearing roller, including a base plate, two support columns are symmetrically fixedly connected to the base plate, the support columns are fixedly connected to a connecting frame, a cylindrical grinding wheel and a cylindrical polishing wheel are symmetrically fixedly arranged on the connecting frame, a driving device is provided on the base plate, the base plate is connected to a sleeve rod through the driving device, an inner ring bearing workpiece is fixedly sleeved on the sleeve rod, a plurality of roller bodies are provided on the inner ring bearing workpiece, and the plurality of roller bodies are distributed in a circular array, two movable grooves are symmetrically provided in the sleeve rod, and a limit block is slidably connected in the two movable grooves, and an adjustment mechanism is provided between the two limit blocks. The limit block is fixedly limited to the inner ring bearing workpiece by the adjustment mechanism, so that the inner ring bearing workpiece is connected to the base plate, and the driving device can drive the plurality of roller bodies to move in a circular motion, so that the roller body contacts the cylindrical grinding wheel and the cylindrical polishing wheel once each rotation, so that polishing can be performed simultaneously with grinding.

[0004] However, when the driving device drives the roller body to rotate, the position of the roller body in contact with the cylindrical grinding wheel is the same each time. The cylindrical grinding wheel will also wear in the process of grinding the roller body, so that traces of the roller body passing through will be formed on the cylindrical grinding wheel. After long-term use, the working surface of the cylindrical grinding wheel will wear unevenly, causing the cylindrical grinding wheel to be scrapped prematurely and can no longer be used. Summary of the Invention

[0005] The present invention provides a grinding device for processing bearing rollers, aiming to solve the problem of uneven wear of the working surface of a cylindrical grinding wheel when grinding the roller body of a self-aligning bearing in the related art.

[0006] The present invention provides a grinding device for processing bearing rollers, comprising a frame and a cylindrical grinding wheel, wherein the working surface of the cylindrical grinding wheel is a spherical arc surface, and further comprising: a feed assembly for driving the cylindrical grinding wheel to move along its axial direction; a rotating frame, which is swingably arranged on the frame around a first axis, the rotating frame is used to install a roller body, and the roller body rotates on the rotating frame; the cylindrical grinding wheel keeps continuously rotating around its own axis, and the center line of the cylindrical grinding wheel, the center line of the roller body and the first axis are arranged perpendicularly in pairs; the plane where the first axis and the center line of the cylindrical grinding wheel are located is the middle plane, and the swing amplitude of the rotating frame around the first axis is symmetrically distributed on both sides of the middle plane, and the roller body exceeds the edge of the cylindrical grinding wheel as it swings; the center point of the base circle of the roller body coincides with the center point of the spherical arc surface, and the first axis passes through the center point of the base circle of the roller body.

[0007] The effect is that the cylindrical grinding wheel rotates continuously around its axis, while the roller body is rotatably mounted on a rotating frame. When the center of the roller body's base circle coincides with the center of the spherical arc surface and the roller body moves to the position of the cylindrical grinding wheel, the cylindrical grinding wheel grinds the outer circumference of the roller body, completing the grinding process. When the rotating frame swings around the first axis, the roller body on the rotating frame swings accordingly. The swing amplitude is symmetrical on both sides of the midplane, which is the plane containing the first axis and the centerline of the cylindrical grinding wheel. During the swing process, the roller body moves from the center of the cylindrical grinding wheel to the edge of the cylindrical grinding wheel and can even move beyond the edge of the cylindrical grinding wheel. This ensures that the working surface of the cylindrical grinding wheel is in full contact with the roller body, ensuring more uniform wear on the working surface of the cylindrical grinding wheel. When the cylindrical grinding wheel wears, the feed assembly drives the cylindrical grinding wheel along its axis to compensate for positional deviation caused by wear. Furthermore, the cylindrical grinding wheel can be gradually and fully used under the condition of uniform wear, thereby increasing the service life of the cylindrical grinding wheel.

[0008] Preferably, the rotating frame includes a material tray and a mounting assembly slidably mounted on the material tray, the sliding direction of the mounting assembly on the material tray is along the radial direction of the material tray, the end of the mounting assembly away from the center of the material tray is used to install the roller body, the roller body slides on the material tray through the mounting assembly to adjust the center of the base circle of the roller body to coincide with the center of the spherical arc surface, and the cylindrical grinding wheel is detachably connected to the rotating shaft mounted on the frame.

[0009] The effect is that the mounting assembly is slidably connected to the material disc. When grinding roller bodies of different sizes, the cylindrical grinding wheel can be removed from the rotating shaft of the frame and replaced with the appropriate cylindrical grinding wheel. The mounting assembly is then moved radially along the material disc to ensure that the center of the base circle of the roller body to be ground still coincides with the center of the spherical arc surface. At this point, grinding can begin. Therefore, this equipment can grind roller bodies of different sizes and has a wide range of applications.

[0010] Preferably, the mounting assembly is position-adjusted by an adjusting assembly installed on the material tray. The adjusting assembly includes a turntable, an adjusting rod and a sliding block. The turntable is coaxially arranged with the material tray. A plurality of arc-shaped drive grooves are provided on the turntable. Both the mounting assembly and the sliding block are fixed with fixed columns for inserting into the arc-shaped drive grooves. The arc-shaped drive grooves gradually move away from the center of the turntable from one end to the other. The sliding block is slidably connected to the material tray along the radial direction of the material tray. The adjusting rod is rotatably arranged on the material tray and is threadedly connected to the sliding block.

[0011] The effect is that both the sliding block and the mounting assembly are fixed with fixed posts. When the operator rotates the adjustment lever, the sliding block on the adjustment lever slides radially along the material tray, causing the fixed posts on the slider to move within the arc-shaped drive grooves. This movement of the fixed posts also drives the material tray to rotate, which in turn causes the other arc-shaped drive grooves on the material tray to drive the mounting assembly to move synchronously. This allows the mounting assembly's position on the material tray to be adjusted to ensure that the center of the roller's base circle coincides with the center of the spherical arc surface.

[0012] Preferably, the mounting assembly includes a radial rod and two clamps mounted on the radial rod, the clamps are L-shaped, the radial rod is arranged along the radial direction of the material tray and is slidingly connected to the material tray, the fixing column is fixed on the side wall of the radial rod, one end of the radial rod extends from the edge of the material tray for mounting the clamps, and one end of the two clamps is connected to the radial rod to form a U-shaped structure, and the roller body is installed between the two clamps by rotating the thimble mounted on the clamp.

[0013] The effect is that the roller body is directly rotatably mounted between the two jaws via an ejector pin. As the roller body rotates about its own axis, this rotation is driven by the rotation of the cylindrical grinding wheel. During this rotation, the roller body, under the influence of inertia, slides relative to the cylindrical grinding wheel, thus achieving grinding. When the roller body passes the intermediate surface, the friction of the cylindrical grinding wheel on the roller body reverses the direction of rotation, making it easier to grind the roller body.

[0014] Preferably, racks are mounted on both jaws, the racks are parallel to the axial direction of the roller body, an intermediate gear is rotatably arranged on the radial rod, both racks are engaged with the intermediate gear and are located on both sides of the intermediate gear, the jaws are slidably connected to the radial rod along the length direction of the racks, and a tension spring is provided between the two jaws for bringing the two jaws close to each other to clamp the roller body.

[0015] The effect is that: racks are mounted on both jaws, and an intermediate gear is rotatably connected to the radial rod. The two jaws, intermediate gear, and rack work together to accurately secure the roller body in the center position, allowing the roller body to easily align its base circle with the center of the spherical arc surface after installation.

[0016] Preferably, the material tray is rotatably set on the frame through a swinging assembly, the swinging assembly includes a swinging motor and a swinging frame, the swinging frame is rotatably connected to the frame, the first axis is the rotation axis of the swinging frame and the frame, the swinging motor is fixed on the frame, and the swinging motor and the swinging frame are coaxially fixed.

[0017] Preferably, the material tray is rotatably arranged on a swing frame, and a rotating assembly for driving the material tray to rotate around its axis is installed on the swing frame, the rotating assembly includes a rotating motor, a worm and a worm wheel, the worm wheel and the material tray are set at the same time, the worm is rotatably installed on the swing frame, the rotating motor is fixed on the swing frame, the output shaft of the rotating motor is coaxially fixedly connected to the worm, and multiple mounting assemblies are arranged around the material tray.

[0018] Preferably, the rotating assembly drives the material tray to rotate intermittently. When the rotating assembly stops rotating, one roller body rotates to the position of the cylindrical grinding wheel, and at the same time, another ground roller body rotates to the position of the first axis.

[0019] The effect is that the rotating assembly drives the material disc to rotate intermittently, positioning one roller body in the corresponding position with the cylindrical grinding wheel for grinding. At the same time, a roller body that has been ground is positioned on the first axis. In this position, the roller body's swing amplitude is small, so it can be easily removed and replaced, thus ensuring the continuity of the grinding process.

[0020] Preferably, the feed assembly includes a feed motor, a drive screw and a movable seat, the movable seat is slidably connected to the frame parallel to the center line of the cylindrical grinding wheel, the feed motor is fixed on the frame, the drive screw is arranged parallel to the sliding direction of the movable seat, and the output shaft of the feed motor is coaxially fixedly connected to the drive screw.

[0021] Preferably, the feed motor is a stepper motor or a servo motor.

[0022] By adopting the above technical solution, the beneficial effects of the present invention are:

[0023] The present invention drives the roller body on the rotating frame to swing around the first axis. During the swinging process, the roller body moves from the center of the cylindrical grinding wheel to the edge of the cylindrical grinding wheel. In this way, the working surface of the cylindrical grinding wheel can contact the roller body as a whole, so that the working surface of the cylindrical grinding wheel wears more evenly. When the cylindrical grinding wheel is worn, the cylindrical grinding wheel is driven to move along its axial direction by the feed assembly, which can compensate for the position deviation caused by the wear of the cylindrical grinding wheel, thereby increasing the service life of the cylindrical grinding wheel. In addition, when it is necessary to replace the cylindrical grinding wheel to adapt to roller bodies of different sizes, it is only necessary to move the mounting assembly along the radial direction of the material disc to ensure that the center of the base circle of the roller body still coincides with the center of the spherical arc surface, thereby enabling the grinding of roller bodies of different sizes, and having a wide range of applications. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is an overall structural diagram of a grinding device for bearing roller processing according to the present invention;

[0025] Figure 2 yes Figure 1 Half-section structure diagram of AA;

[0026] Figure 3 is a structural diagram of a swing assembly in an embodiment of the present invention;

[0027] Figure 4 is a structural diagram of a rotating assembly in an embodiment of the present invention;

[0028] Figure 5 yes Figure 4 Rotated cross-section view of the middle BB;

[0029] Figure 6 yes Figure 5 A partial enlarged view of part C in the middle;

[0030] Figure 7 It is a structural diagram of the installation components in an embodiment of the present invention.

[0031] Reference numerals:

[0032] 1. Frame; 2. Cylindrical grinding wheel; 21. Spherical arc surface; 22. Driving motor; 23. Rotating shaft; 3. Rotating frame; 31. Material tray; 32. Mounting assembly; 321. Radial rod; 322. Clamping jaw; 323. Ejector pin; 324. Rack; 325. Intermediate gear; 326. Tension spring; 4. Roller body; 5. Feed assembly; 51. Feed motor; 52. Driving screw; 53. Moving seat; 6. Adjusting assembly; 61. Turntable; 611. Arc driving groove; 62. Adjusting rod; 63. Sliding block; 64. Fixed column; 7. Swinging assembly; 71. Swinging motor; 72. Swinging frame; 8. Rotating assembly; 81. Rotating motor; 82. Worm; 83. Worm wheel. DETAILED DESCRIPTION

[0033] The following combination Figures 1 to 7 The embodiments of the present invention are described in detail, and examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to be used to explain the present invention, but should not be understood as limiting the present invention.

[0034] This embodiment discloses a grinding device for machining bearing rollers. Figure 1 and Figure 2 As shown, the apparatus comprises a frame 1, on which a cylindrical grinding wheel 2 is mounted. The cylindrical grinding wheel 2 rotates about its own axis. The working surface of the cylindrical grinding wheel 2 is a spherical arc surface 21, the radius of which is equal to the base radius of the roller body 4 to be ground. A turret 3 is mounted corresponding to the spherical arc surface 21 and is mounted on the frame 1 so as to swing about a first axis. The first axis is perpendicular to the centerline of the cylindrical grinding wheel 2. The roller body 4 to be ground is rotatably mounted on the turret 3 and rotates relative to the turret 3 about its own axis. The centerline of the roller body 4 is perpendicular to the centerline of the cylindrical grinding wheel 2, and the first axis is also perpendicular to the centerline of the roller body 4. Therefore, the centerlines of the cylindrical grinding wheel 2, the roller body 4, and the first axis are perpendicular to each other. The plane containing the first axis and the centerline of the cylindrical grinding wheel 2 forms the midplane, allowing the turret 3 to swing symmetrically perpendicular to the midplane.

[0035] The plane containing the first axis and the centerline of the cylindrical grinding wheel 2 is defined as the midplane, and the turret 3 swings symmetrically perpendicular to this midplane. When the roller body 4 is grinding, the swing amplitude of the turret 3 about the first axis will extend beyond the edge of the cylindrical grinding wheel 2 on both sides of the midplane. Because the distance between the first axis and the spherical arc surface 21 is equal to the radius of the spherical arc surface 21, the first axis passes through the center of the spherical arc surface 21. During the rotation of the cylindrical grinding wheel 2, the roller body 4 swings about the first axis while contacting the entire spherical arc surface 21 of the cylindrical grinding wheel 2. The roller body 4 also rotates about its own axis, thereby grinding the circumference of the roller body 4. As the entire spherical arc surface 21 grinds the roller body 4, uniform wear is achieved. A feed assembly 5 is mounted on the frame 1 to drive the cylindrical grinding wheel 2 toward the turret 3. This feed assembly 5 allows for position compensation after wear of the cylindrical grinding wheel 2 to meet the grinding requirements for the roller body 4 dimensions. In this way, the cylindrical grinding wheel 2 can be gradually and fully used, thereby increasing its service life.

[0036] refer to Figure 2 The feed assembly 5 includes a feed motor 51, a drive screw 52 and a movable seat 53. The movable seat 53 is parallel to the center line of the cylindrical grinding wheel 2 and is slidably connected to the frame 1. The feed motor 51 can be a stepper motor or a servo motor and is fixed to the frame 1. The output shaft of the feed motor 51 is coaxially fixedly connected to the drive screw 52, ​​and the drive screw 52 is set parallel to the sliding direction of the movable seat 53 and is rotatably installed on the frame 1. At the same time, the drive screw 52 is threadedly connected to the movable seat 53. When the feed motor 51 drives the drive screw 52 to rotate, the movable seat 53 will slide on the frame 1, thereby causing the cylindrical grinding wheel 2 rotatably installed on the movable seat 53 to approach the rotating frame 3, thereby achieving compensation for the wear of the grinding wheel.

[0037] A drive motor 22 is fixedly mounted on the movable base 53. A rotating shaft 23 is coaxially fixedly mounted on the output shaft of the drive motor 22. The cylindrical grinding wheel 2 is detachably connected to the rotating shaft 23 via bolts, such that the centerline of the rotating shaft 23 coincides with the centerline of the cylindrical grinding wheel 2. The drive motor 22 drives the cylindrical grinding wheel 2 to rotate about its axis via the rotating shaft 23. Furthermore, when it is necessary to grind roller bodies 4 for bearings of different diameters, a different cylindrical grinding wheel 2 can be replaced. The feed assembly 5 then moves the spherical arc surface 21 of the cylindrical grinding wheel 2 to a position at a distance from the first axis equal to the base radius of the roller body 4, and grinding can begin. This allows for grinding roller bodies 4 of various sizes, providing a wide range of adaptability.

[0038] refer to Figure 2 and Figure 3When grinding roller bodies 4 of varying sizes, the mounting position of the roller body 4 on the turret 3 must be adjusted according to the position of the cylindrical grinding wheel 2. The turret 3 comprises a material tray 31 and a mounting assembly 32 slidably mounted on the material tray 31. The material tray 31 is connected to the frame 1 via a swing assembly 7. The swing assembly 7 swings the material tray 31 along a first axis, with the center of the material tray 31 lying on the first axis. Multiple mounting assemblies 32 are provided, sliding radially along the material tray 31 and arranged outward from the center of the material tray 31. An adjustment assembly 6 is mounted on the material tray 31, which is used to move the mounting assembly 32 so that the distance between the mounting assembly 32 and the center of the material tray 31 can be adjusted. The end of the mounting assembly 32, away from the center of the material tray 31, is located outside the material tray 31 and is used to mount the roller body 4. This allows the position of the roller body 4 relative to the center of the material tray 31 to be adjusted by moving the mounting assembly 32.

[0039] The material tray 31 is rotatably mounted on the swing assembly 7, and the material tray 31 is driven by the rotating assembly 8 mounted on the swing assembly 7. The axis of rotation of the material tray 31 coincides with the center line of the material tray 31, which enables the multiple mounting assemblies 32 to reach a position of contact with the cylindrical grinding wheel 2 as the material tray 31 rotates. During use, the material tray 31, under the action of the rotating assembly 8, continuously transports the multiple roller bodies 4 to the position of the cylindrical grinding wheel 2. The rotating assembly 8 can stop rotating while each roller body 4 is being ground. After the grinding is completed, the rotating assembly 8 rotates another roller body 4 to the position of the cylindrical grinding wheel 2 for grinding. The mounting assembly 32 corresponding to the roller body 4 being ground is exactly arranged parallel to the axis direction of the cylindrical grinding wheel 2. When the rotating assembly 8 stops, it is convenient to replace the roller body 4 that has been ground. First, adjust the mounting assembly 32 corresponding to the polished roller body 4 so that its sliding direction is parallel to the first axis, and then replace the roller body 4 at this position. In this position, the swing amplitude of the roller body 4 is the smallest, which is convenient for the staff to operate.

[0040] The swing assembly 7 consists of a swing motor 71 and a swing frame 72. The swing frame 72 is rotatably connected to the frame 1, with its axis of rotation forming the first axis. The swing motor 71 is fixed to the frame 1 and has forward and reverse rotation capabilities. Its output shaft is coaxial with the swing frame 72. The swing motor 71 drives the swing frame 72 to oscillate back and forth. The center of the feed tray 31 is rotatably mounted on the swing frame 72, with the centerline of the feed tray 31 aligning with the axis of rotation of the feed tray 31 on the swing frame 72.

[0041] refer to Figure 3 and Figure 4The rotating assembly 8 includes a rotating motor 81, a worm 82, and a worm wheel 83. The worm wheel 83 is rotatably mounted on the swing frame 72 and is coaxially arranged with the material tray 31. The worm wheel 83 drives the material tray 31 to achieve coaxial rotation. The worm 82 is also rotatably mounted on the swing frame 72 and meshes with the worm wheel 83. The rotating motor 81 is fixed to the swing frame 72, and its output shaft is coaxial and fixedly connected to the worm 82. When the rotating motor 81 is started, the rotating motor 81 drives the worm 82 to rotate, and the worm 82 then drives the worm wheel 83 to rotate, ultimately achieving rotation of the material tray 31.

[0042] refer to Figure 4 and Figure 5 The adjustment component 6 includes a turntable 61, an adjustment rod 62 and a sliding block 63. The turntable 61 is arranged parallel to the material tray 31 and is connected to the swing frame 72 to rotate coaxially with the material tray 31. An arc-shaped drive groove 611 is provided on the surface of the turntable 61. The number of the arc-shaped drive groove 611 is one more than the number of the mounting components 32. Each mounting component 32 is provided with a corresponding arc-shaped drive groove 611, and the extra arc-shaped drive groove 611 is used to correspond to the sliding block 63. A fixed column 64 is fixedly provided on the mounting component 32 and the sliding block 63. The diameter of the fixed column 64 is equal to the width of the arc-shaped drive groove 611, ensuring that the fixed column 64 can be smoothly inserted into the arc-shaped drive groove 611. The arc-shaped drive groove 611 gradually moves away from the center of the turntable 61 from one end to the other. When the turntable 61 rotates relative to the material tray 31, the arc-shaped drive groove 611 can simultaneously adjust the positions of multiple mounting assemblies 32 so that their distances from the center of the material tray 31 are equal. The sliding block 63 is slidably connected to the material tray 31, and the adjustment rod 62 is rotationally connected to the material tray 31. The length of the adjustment rod 62 is mainly set along the radial direction of the material tray 31. The sliding block 63 and the adjustment rod 62 are threaded. One end of the adjustment rod 62 extends from the edge of the material tray 31, making it easier for the operator to rotate it. When the adjustment rod 62 rotates, the sliding block 63 will move along the length of the adjustment rod 62, gradually moving away from or closer to the center of the material tray 31. At this time, the fixed column 64 on the sliding block 63 will drive the turntable 61 to rotate relative to the material tray 31, and then drive the multiple mounting assemblies 32 through the turntable 61 to make corresponding adjustments.

[0043] refer to Figure 6 and Figure 7The mounting assembly 32 includes a radial rod 321 and two clamping jaws 322 mounted on the radial rod 321. The fixing column 64 is fixed to the side wall of the radial rod 321, and the radial rod 321 is arranged along the radial direction of the material tray 31. The radial rod 321 is slidably connected to the material tray 31 through a guide hole provided on the material tray 31, and one end thereof extends from the edge of the material tray 31 for mounting the clamping jaws 322. The clamping jaws 322 are L-shaped, and one end thereof is slidably connected to the radial rod 321, so that the two clamping jaws 322 form a U-shaped structure, and the middle is used to place the roller body 4. There are positioning holes at both ends of the roller body 4, and a thimble 323 is rotatably provided on the clamping jaw 322. The thimble 323 is used to abut against the positioning hole, so that the roller body 4 can rotate on the clamping jaw 322 through the thimble 323. To ensure that the center of the base circle of the roller body 4 does not deviate from the center of the spherical arc surface 21 after it is installed on the clamping jaws 322, racks 324 are mounted on each of the two clamping jaws 322. Furthermore, an intermediate gear 325 is rotatably mounted on the radial rod 321 and externally meshes with the racks 324 on the two clamping jaws 322. The two racks 324 are parallel and located on either side of the intermediate gear 325. Furthermore, a tension spring 326 is installed between the two clamping jaws 322. The ends of the tension spring 326 are fixed to the side walls of the two clamping jaws 322 where the ejector pins 323 are mounted. The force of the tension spring 326 forces the two clamping jaws 322 to move closer together, clamping the roller body 4. When replacing a polished roller body 4, one only needs to pull one clamping jaw 322. Due to the meshing relationship between the rack 324 and the intermediate gear 325, as well as the action of the tension spring 326, the other clamping jaw 322 will simultaneously move to the other side, thereby increasing the distance between the two clamping jaws 322. This allows the roller body 4 to be conveniently placed between the two ejector pins 323. This design not only facilitates operation but also accurately ensures that the base circle of the roller body 4 is in the correct position, thereby achieving precise polishing.

[0044] The working process of this embodiment is as follows: First, the roller body 4 is installed by rotating the adjustment rod 62 so that the base circle center of the roller body 4 is at the center of the material tray 31. Then, multiple roller bodies 4 are installed between the two clamping jaws 322. Due to the setting of the ejector pin 323, the roller body 4 can rotate relative to the clamping jaw 322. The rotating assembly 8 drives the material tray 31 to rotate, so that the roller body 4 rotates around the center of the material tray 31, so that the roller body 4 to be polished reaches the position of the cylindrical grinding wheel 2. The cylindrical grinding wheel 2 continuously rotates around its own axis under the action of the drive motor 22. The roller body 4 also swings around the first axis under the action of the swing assembly 7. For example, the roller body 4 first contacts the cylindrical grinding wheel 2 from one side. At this time, the rotation of the cylindrical grinding wheel 2 will drive the roller body 4. Due to the inertia of the roller body 4, the roller body 4 and the cylindrical grinding wheel 2 will produce grinding, thereby grinding the peripheral wall of the roller body 4. When the roller body 4 is When passing through the middle surface during the swinging process, the friction force exerted on the roller body 4 by the cylindrical grinding wheel 2 is opposite. At this time, the roller body 4 will generate friction with the cylindrical grinding wheel 2 while still rotating under the inertial force, so that the roller body 4 will reverse its rotation direction once after swinging once. At the same time, when the cylindrical grinding wheel 2 is grinding, the cylindrical grinding wheel 2 will contact with the roller body 4 from the edge to the inner side of the cylindrical grinding wheel 2, so that the wear consistency of the spherical arc surface 21 of the cylindrical grinding wheel 2 is better. When the cylindrical grinding wheel 2 is worn, the position compensation can be performed in time through the feed assembly 5 to achieve the purpose of fully using the cylindrical grinding wheel 2.

[0045] Although the embodiments of the present invention have been shown and described above, it will be understood that the above embodiments are illustrative and are not to be construed as limitations on the present invention. A person skilled in the art may change, modify, replace and modify the above embodiments within the scope of the present invention.

Claims

1. A grinding device for processing bearing rollers, comprising a frame and a cylindrical grinding wheel, wherein the working surface of the cylindrical grinding wheel is a spherical arc surface, characterized in that: Also includes: A feeding assembly is used to drive the cylindrical grinding wheel to move along its axis; A rotating frame is swingably arranged on the frame around the first axis, the rotating frame is used to mount the roller body, and the roller body rotates on the rotating frame; The cylindrical grinding wheel keeps rotating continuously around its own axis, and the center line of the cylindrical grinding wheel, the center line of the roller body and the first axis are arranged perpendicularly in pairs; The plane where the first axis and the center line of the cylindrical grinding wheel lie is a middle plane, and the swing amplitude of the rotating frame around the first axis is symmetrically distributed on both sides of the middle plane, and the roller body exceeds the edge of the cylindrical grinding wheel as it swings; The center of the base circle of the roller body coincides with the center of the spherical arc surface, and the first axis passes through the center of the base circle of the roller body; The rotating frame includes a material tray and a mounting assembly slidably mounted on the material tray. The sliding direction of the mounting assembly on the material tray is along the radial direction of the material tray. The end of the mounting assembly away from the center of the material tray is used to mount a roller body. The roller body slides on the material tray through the mounting assembly to adjust the center of the roller body base circle to coincide with the center of the spherical arc surface. The cylindrical grinding wheel is detachably connected to the rotating shaft mounted on the frame. The mounting assembly is position-adjusted by an adjusting assembly installed on the material tray. The adjusting assembly includes a turntable, an adjusting rod and a sliding block. The turntable is coaxially arranged with the material tray. A plurality of arc-shaped drive grooves are provided on the turntable. Both the mounting assembly and the sliding block are fixedly provided with fixed columns for inserting into the arc-shaped drive grooves. The arc-shaped drive grooves gradually move away from the center of the turntable from one end to the other. The sliding block is slidably connected to the material tray along the radial direction of the material tray. The adjusting rod is rotatably arranged on the material tray and is threadedly connected to the sliding block.

2. A grinding device for bearing roller processing according to claim 1, characterized in that: The mounting assembly includes a radial rod and two clamping jaws mounted on the radial rod, the clamping jaws are L-shaped, the radial rod is arranged along the radial direction of the material tray and is slidingly connected to the material tray, the fixing column is fixed on the side wall of the radial rod, one end of the radial rod extends from the edge of the material tray for mounting the clamping jaws, and one end of the two clamping jaws is connected to the radial rod to form a U-shaped structure, and the roller body is installed between the two clamping jaws by rotating the thimble mounted on the clamping jaw.

3. A grinding device for bearing roller processing according to claim 2, characterized in that: Racks are installed on both clamping jaws, which are parallel to the axial direction of the roller body. An intermediate gear is rotatably set on the radial rod. Both racks are engaged with the intermediate gear and are located on both sides of the intermediate gear. The clamping jaws are slidably connected to the radial rod along the length direction of the racks. A tension spring is provided between the two clamping jaws for making the two clamping jaws close to each other to clamp the roller body.

4. A grinding device for bearing roller processing according to claim 1, characterized in that: The material tray is rotatably set on the frame through a swinging assembly. The swinging assembly includes a swinging motor and a swinging frame. The swinging frame is rotatably connected to the frame. The first axis is the rotation axis of the swinging frame and the frame. The swinging motor is fixed on the frame, and the swinging motor and the swinging frame are coaxially fixed.

5. A grinding device for bearing roller processing according to claim 4, characterized in that: The material tray is rotatably arranged on a swing frame, and a rotating assembly for driving the material tray to rotate around its axis is installed on the swing frame. The rotating assembly includes a rotating motor, a worm and a worm wheel. The worm wheel and the material tray are set at the same time. The worm is rotatably installed on the swing frame, and the rotating motor is fixed on the swing frame. The output shaft of the rotating motor is coaxially fixedly connected to the worm. Multiple mounting assemblies are arranged around the material tray.

6. A grinding device for machining bearing rollers according to claim 5, characterized in that: The rotating assembly drives the material tray to rotate intermittently. When the rotating assembly stops rotating, one roller body rotates to the position of the cylindrical grinding wheel, and at the same time, another polished roller body rotates to the position of the first axis.

7. A grinding device for bearing roller processing according to claim 1, characterized in that: The feed assembly includes a feed motor, a driving screw and a movable seat. The movable seat is slidably connected to the frame parallel to the center line of the cylindrical grinding wheel. The feed motor is fixed on the frame. The driving screw is arranged parallel to the sliding direction of the movable seat. The output shaft of the feed motor is coaxially fixedly connected to the driving screw.

8. A grinding device for machining bearing rollers according to claim 7, characterized in that: The feeding motor is a stepping motor or a servo motor.

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