Grinding device for inner groove of bearing
By designing the inner channel grinding device of the bearing, the problems of high-precision processing of the inner channel of the bearing and the surface quality of the complex shape are solved, and efficient and precise grinding and convenient maintenance are achieved.
Patent Information
- Application Number
- CN202421918200.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-08
- Publication Date
- 2025-06-24
- Estimated Expiration
- 2034-08-08
AI Technical Summary
The high-precision processing of channels in the bearing and the complex surface quality of the surfaces of the bearings are difficult to meet the performance requirements under extreme operating conditions such as high speed and heavy load.
A bearing inner channel grinding device is designed, including a grinding base, a grinding component and a bearing positioning connecting component. The grinding components are composed of grinding rotors, round cutter heads and chip outlets. The driving components are compact in structure, the inner clamping components are accurate, and the limiting components ensure the stable movement of the threaded rod.
It improves chip removal efficiency during grinding, avoids the accumulation of cutting residues, ensures processing accuracy and position stability, and improves the maintenance convenience of the equipment.
Smart Images
Figure CN223012756U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of bearing grinding, in particular to a grinding device for the inner raceway of a bearing. Background Art
[0002] As an important component in mechanical equipment, the precision of a bearing directly affects the performance and service life of the entire equipment. Especially for the inner raceway of a bearing, parameters such as its shape precision and surface roughness have important influences on the rotation precision, load-bearing capacity, noise level, etc. of the bearing. Under extreme working conditions such as high speed and heavy load, the precision requirements for bearings are even more stringent. The inner raceway structure of a bearing is complex, usually including various shapes such as arcs and straight lines, and has high dimensional precision requirements. Inner raceway grinding not only requires shape precision but also surface quality, such as reducing surface roughness, avoiding scratches and burns, etc. In order to meet the high-precision requirements and complex processing needs of bearing processing, a grinding device for the inner raceway of a bearing is proposed to achieve high-precision processing and efficient production of the inner raceway of a bearing. Summary of the Utility Model
[0003] The utility model aims to solve at least to some extent the technical problems of bearing inner raceway grinding technology. For this purpose, the utility model proposes a grinding device for the inner raceway of a bearing.
[0004] The technical solution adopted by the utility model to solve its technical problems is: a grinding device for the inner raceway of a bearing, which specifically includes a grinding processing base, a grinding component and a bearing positioning and connecting component are arranged on the grinding processing base, the grinding component includes a grinding head and a driving component, a fastening block is arranged inside the grinding head, a connecting hole is arranged among the circumferential arrays of the fastening blocks, a round cutter head is arranged on the circumference of the grinding head, a chip removal groove is arranged among the circumferential arrays of the round cutter heads, a rotating shaft is sleeved on the connecting hole, a rotating seat is arranged on the rotating shaft, a driving component is arranged on one side of the rotating seat, the bearing positioning and connecting component includes a fixing frame, a fixing rod, a connecting sleeve, an inner clamping component and a limiting component, the fixing frame is arranged on the grinding processing base, a connecting sleeve is arranged on the fixing frame, the fixing rod is sleeved inside the connecting sleeve, one end of the fixing rod is connected to the inner clamping component, and the other end is provided with a limiting component.
[0005] In a preferred embodiment of the utility model, the driving component includes a connecting plate, a driving motor, a first stepped disc, a second stepped disc and a belt, the connecting plate is arranged on one side of the rotating seat, the driving motor is arranged on the connecting plate, the output end of the driving motor is connected to the first stepped disc, the second stepped disc is connected to one end of the rotating shaft, and the first stepped disc and the second stepped disc are connected by a belt.
[0006] In a preferred embodiment of the utility model, the inner clamping assembly includes a threaded rod, a handwheel and a clamping plate. The threaded rod is arranged to penetrate into the fixed rod. One end of the threaded rod is threadedly connected to the clamping plate, and the other end is connected to the handwheel. The diameter of the rotating end of the threaded rod is slightly larger, and the clamping plate is converted into radial movement through rotational motion.
[0007] In a preferred embodiment of the utility model, the limit assembly includes a limit connecting rod and a limit block, the limit connecting rod is connected to one side of the fixing frame, the limit block is connected to the limit connecting rod, and a limit groove is provided on the limit block, and the threaded rod is accommodated in the limit groove.
[0008] In a preferred embodiment of the present invention, a fixing hole is provided on the connecting sleeve, a fastening screw is provided on the fixing hole, and the fastening screw passes through the connecting sleeve and the fixing rod to abut against the threaded rod.
[0009] In a preferred embodiment of the utility model, there are four clamping plates, one side of the clamping plates is provided with an internal thread, and the clamping plates are arranged in a circular array on the threaded rod.
[0010] The beneficial effects of the utility model are as follows: after adopting the above structure, the chip removal efficiency during the grinding process is effectively improved through the designed grinding head and circular cutter head, combined with the setting of the chip groove, and the accumulation of cutting residues is avoided. The driving component has a compact structure and high transmission efficiency, so that the rotation speed and torque of the grinding head can be flexibly adjusted according to processing requirements. The inner clamping component accurately and stably clamps bearings of different sizes, ensuring the position stability during the grinding process and avoiding processing errors caused by bearing shaking. The limit assembly limits the radial movement range of the threaded rod and prevents it from falling off or being damaged due to accidental force during the grinding process. When it is necessary to replace or adjust components such as the clamping jaw plate, it can be easily completed by loosening the fastening screw, which improves the maintenance convenience of the equipment. In summary, the bearing inner groove grinding device of the utility model performs well in terms of structural design, grinding efficiency, positioning accuracy, safety, and maintenance convenience, and has significant technical advantages and application value. BRIEF DESCRIPTION OF THE DRAWINGS
[0011] Figure 1 It is a schematic diagram of the three-dimensional structure of the main body of the utility model;
[0012] Figure 2 This is a schematic diagram of the structure of the grinding rotary head of the utility model;
[0013] Figure 3 This is a schematic diagram of the structure of the clamping claw plate of the utility model;
[0014] Figure 4 This is a schematic diagram of the structure of the limit assembly of the utility model;
[0015] In the figure: 1 - grinding base, 2 - grinding head, 3 - fastening block, 4 - connecting hole, 5 - circular cutter head, 6 - chip removal groove, 7 - rotating shaft, 8 - rotating seat, 9 - fixing bracket, 10 - fixing rod, 11 - connecting sleeve, 12 - connecting plate, 13 - driving motor, 14 - first stepped disc, 15 - second stepped disc, 16 - belt, 17 - threaded rod, 18 - handwheel, 19 - jaw plate, 20 - limiting connecting rod, 21 - limiting block, 22 - limiting groove, 23 - fixing hole, 24 - fastening screw. Detailed implementation mode
[0016] The following details the implementation modes of the present utility model. The examples of the implementation modes are shown in the drawings, where the same or similar reference numerals represent the same or similar elements or elements with the same or similar functions from beginning to end. The implementation modes described below by referring to the drawings are exemplary and are only used to explain the present utility model and should not be construed as a limitation to the present utility model.
[0017] As Figure 1 and Figure 2As shown, a bearing inner raceway grinding device, which specifically includes a grinding processing base 1. A grinding component and a bearing positioning and connecting component are arranged on the grinding processing base 1. The grinding component includes a grinding head 2 and a driving component. A fastening block 3 is arranged inside the grinding head 2. Connecting holes 4 are arranged among the annular alignment of the fastening blocks 3. Circular cutting heads 5 are arranged on the circumference of the grinding head 2. Chip discharge grooves 6 are arranged among the circular array of the circular cutting heads 5. A rotating shaft 7 is sleeved on the connecting hole 4. A rotating seat 8 is arranged on the rotating shaft 7. A driving component is arranged on one side of the rotating seat 8. During implementation, the grinding processing base 1 serves as the basic support of the entire grinding device, ensuring the stable installation and positioning of all components, bearing the grinding component and the bearing positioning and connecting component, and providing a stable processing platform; the grinding head 2 on the grinding component rotates at a high speed to generate a cutting force for precisely processing the bearing inner raceway; the fastening block 3 enhances the structural strength of the grinding head 2 to ensure the stable installation of the circular cutting heads 5; the connecting holes 4 provide precise assembly positioning to ensure the concentricity of the rotating shaft 7 and the grinding head 2. The sharp cutting edges of the circular cutting heads 5 can efficiently remove materials to form a smooth groove surface, directly performing cutting processing on the bearing inner raceway; the chip discharge grooves 6 effectively discharge the waste chips generated during the cutting process, providing a discharge channel for the cutting waste chips to keep the processing area clean; the rotating shaft 7 transmits power to ensure the high-speed and stable rotation of the grinding head 2. The rotating seat 8 supports the rotating shaft 7 and connects the driving component. The bearing positioning and connecting component includes a fixing frame 9, a fixing rod 10, a connecting sleeve 11, an inner clamping component, and a limiting component. The fixing frame 9 is arranged on the grinding processing base 1. A connecting sleeve 11 is arranged on the fixing frame 9. The fixing rod 10 is sleeved inside the connecting sleeve 11. One end of the fixing rod 10 is connected to the inner clamping component, and the other end is provided with a limiting component. During implementation, the fixing frame 9 on the bearing positioning and connecting component stably supports the fixing rod 10 and the inner clamping component to ensure accurate bearing positioning; the fixing rod 10 connects the inner clamping component and the limiting component to transmit the clamping force; the connecting sleeve 11 serves as the mounting seat of the fixing rod 10 and provides an adjustment space.
[0018] As Figure 1As shown, further on the basis of the above method, the driving assembly includes a connecting plate 12, a driving motor 13, a first stepped disc 14, a second stepped disc 15 and a belt 16. The connecting plate 12 is arranged on one side of the rotating seat 8, the driving motor 13 is arranged on the connecting plate 12, the output end of the driving motor 13 is connected to the first stepped disc 14, the second stepped disc 15 is connected to one end of the rotating shaft 7, and the first stepped disc 14 and the second stepped disc 15 are connected by the belt 16. In a specific implementation, the connecting plate 12 serves as the installation base of the driving motor 13, and the driving motor 13 rotates the output shaft to generate power to drive the grinding head 2 to rotate at a high speed, so as to achieve precise grinding of the inner raceway of the bearing. The first stepped disc 14 is connected to the output end of the driving motor 13 and serves as the starting point of power transmission. Through close cooperation with the belt 16, the rotational power of the driving motor is transmitted to the second stepped disc 15, and then the rotating shaft and the grinding head are driven to rotate. The design of the first stepped disc usually includes multiple grooves, and different stepped grooves can adjust the rotation speed of the grinding head 2.
[0019] As Figure 1 and Figure 3 shown, further on the basis of the above method, the inner clamping assembly includes a threaded rod 17, a handwheel 18 and a jaw plate 19. The threaded rod 17 is arranged through the fixed rod 10, one end of the threaded rod 17 is threadedly connected to the jaw plate 19, and the other end is connected to the handwheel 18. The diameter of the end of the threaded rod 17 during rotation is slightly larger, and the rotational motion is used to convert the jaw plate 19 into a radial movement. In a specific implementation, the handwheel 18 serves as the interface for user operation. The user rotates the handwheel to drive the rotation of the threaded rod 17. The jaw plate 19 is connected to the threaded rod 17 by threads. When the threaded rod rotates, the jaw plate 19 will move radially along the axial direction of the threaded rod. Its radial movement can achieve precise clamping or positioning of bearings of different sizes or shapes from the inner side.
[0020] As Figure 4 shown, further on the basis of the above method, the limiting assembly includes a limiting connecting rod 20 and a limiting block 21. The limiting connecting rod 20 is connected to one side of the fixed frame 9, the limiting block 21 is connected to the limiting connecting rod 20, a limiting groove 22 is arranged on the limiting block 21, and the threaded rod 17 is accommodated in the limiting groove 22. In a specific implementation, the limiting groove 22 plays a limiting role during the rotation and movement of the threaded rod 17, preventing clamping failure or workpiece damage caused by excessive movement of the threaded rod 17, and protecting against the impact and wear caused by excessive movement of the threaded rod 17. It improves the clamping accuracy and stability of the jaw plate 19 on the workpiece, thus contributing to achieving higher-precision grinding processing.
[0021] As Figure 1As shown, further based on the above method, a fixing hole 23 is provided on the connecting sleeve 11, and a fastening screw 24 is provided on the fixing hole 23. The fastening screw 24 passes through the connecting sleeve 11 and abuts against the threaded rod 17 of the fixing rod 10. In a specific implementation, the fixing hole 23 and the fastening screw 24 enhance the connection strength between the connecting sleeve 11 and the fixing rod 10, prevent loosening, and limit the rotation of the threaded rod 17 through their abutting force. The installation of the fastening screw 24 enhances the connection strength, prevents loosening, and limits the rotation of the threaded rod, thereby improving the processing accuracy.
[0022] As Figure 3 shown, further based on the above method, there are four clamping jaw plates 19. An internal thread is provided on one side of the clamping jaw plate 19, and the clamping jaw plates 19 are arranged in a circular array on the threaded rod 17. In a specific implementation, the four clamping jaw plates 19 are arranged in a circular array on the threaded rod 17, which can achieve multi-point support for the workpiece, making the clamping force more evenly distributed, avoiding workpiece deformation or damage that may be caused by single-point clamping. By rotating the threaded rod 17 or components such as the handwheel connected thereto, the position of the clamping jaw plate 19 can be conveniently adjusted to adapt to bearings of different sizes and shapes.
[0023] In the specific working process of this new-type bearing inner raceway grinding device, place the bearing to be processed at an appropriate position on the bearing positioning and connecting component, adjust the fixing frame 9 and the connecting sleeve 11 to ensure that the fixing rod 10 is in a suitable position, and rotate the handwheel 18. The rotation of the handwheel drives the threaded rod 17 to rotate within the fixing rod 10. The rotation of the threaded rod 17 will be converted into the radial movement of the jaw plate 19. The four jaw plates 19 are annularly arrayed on the threaded rod 17. As the threaded rod 17 rotates, the jaw plates 19 move towards the center simultaneously, achieving precise clamping of the bearing. The limit block 21 and the limit groove 22 in the limit component ensure that the threaded rod 17 will not move excessively during the movement, guaranteeing the stability and precision of the clamping. The grinding base 1 firmly supports all components to ensure stability during the processing. The grinding head 2 is connected to the rotating shaft 7 through the fastening block 3 and the connecting hole 4 to ensure the stable installation of the grinding head 2. The driving motor 13 is installed on one side of the rotating seat 8 through the connecting plate 12 and is connected to the first stepped disk 14 and the second stepped disk 15 through the belt 16 to provide power for the grinding head 2. Start the driving motor 13, and the power output by the motor is transmitted to the second stepped disk 15 through the belt 16, thereby driving the rotating shaft 7 and the grinding head 2 to rotate at high speed. The round cutter head 5 on the grinding head 2 performs cutting processing on the inner raceway of the bearing at high speed, and the sharp cutting edge efficiently removes the material to form a smooth raceway surface. The chip discharge groove 6 effectively discharges the waste chips generated during the cutting process to keep the processing area clean. When the inner raceway of the bearing reaches the predetermined processing requirements, turn off the driving motor 13 to stop the grinding process. Rotate the handwheel 18 to move the jaw plate 19 outward to release the clamping of the bearing. Take out the processed bearing from the bearing positioning and connecting component for subsequent processing or inspection. During or after the processing, regularly check the wear of each component, promptly replace the damaged components, and clean the grinding device, the grinding head 2, and the chip discharge groove 6 to remove the residual cutting waste chips and impurities. Through the above steps, this new-type bearing inner raceway grinding device can efficiently and precisely complete the grinding processing task of the bearing inner raceway.
[0024] In the description of this specification, the descriptions referring to terms such as "one embodiment", "certain embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" etc. mean that the specific features, structures, materials, or characteristics described in connection with the said embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in a suitable manner in any one or more embodiments or examples.
[0025] In summary, although the present utility model has been disclosed above with preferred embodiments, the above preferred embodiments are not intended to limit the present utility model. Those of ordinary skill in the art can make various changes and modifications without departing from the spirit and scope of the present utility model. Therefore, the protection scope of the present utility model shall be subject to the scope defined by the claims.
Claims
1. A bearing inner groove grinding device, the bearing inner groove grinding device specifically comprises a grinding base (1), the grinding base (1) is provided with a grinding component and a bearing positioning connection component, and is characterized in that: The grinding component comprises a grinding rotary head (2) and a driving assembly. A fastening block (3) is arranged inside the grinding rotary head (2). A connecting hole (4) is arranged in a circular array of the fastening blocks (3). A circular cutter head (5) is arranged on the circumference of the grinding rotary head (2). A chip discharge groove (6) is arranged between the circular arrays of the circular cutter heads (5). A rotating shaft (7) is sleeved on the connecting hole (4). A rotating seat (8) is arranged on the rotating shaft (7). A driving assembly is arranged on one side of the rotating seat (8). The bearing positioning connecting component comprises a fixing frame (9), a fixing rod (10), a connecting sleeve (11), an inner clamping assembly and a limiting assembly. The fixing frame (9) is arranged on the grinding processing base (1). The connecting sleeve (11) is sleeved on the fixing rod (10). One end of the fixing rod (10) is connected to the inner clamping assembly, and the other end is provided with a limiting assembly.
2. The bearing inner groove grinding device according to claim 1, characterized in that: The driving assembly comprises a connecting plate (12), a driving motor (13), a first step disc (14), a second step disc (15) and a belt (16); the connecting plate (12) is arranged on one side of a rotating seat (8); the driving motor (13) is arranged on the connecting plate (12); the output end of the driving motor (13) is connected to the first step disc (14); the second step disc (15) is connected to one end of a rotating shaft (7); and the first step disc (14) and the second step disc (15) are connected via a belt (16).
3. The bearing inner groove grinding device according to claim 1, characterized in that: The inner clamping assembly comprises a threaded rod (17), a hand wheel (18) and a clamping claw plate (19). The threaded rod (17) is arranged to penetrate the fixed rod (10). One end of the threaded rod (17) is threadedly connected to the clamping claw plate (19), and the other end is connected to the hand wheel (18). The diameter of the rotating end of the threaded rod (17) is slightly larger, and the clamping claw plate (19) is converted into radial movement through rotational motion.
4. The bearing inner groove grinding device according to claim 1, characterized in that: The limiting assembly comprises a limiting connecting rod (20) and a limiting block (21), wherein the limiting connecting rod (20) is connected to one side of the fixing frame (9), the limiting block (21) is connected to the limiting connecting rod (20), and a limiting groove (22) is provided on the limiting block (21), wherein the threaded rod (17) is accommodated in the limiting groove (22).
5. The bearing inner groove grinding device according to claim 1, characterized in that: The connecting sleeve (11) is provided with a fixing hole (23), the fixing hole (23) is provided with a tightening screw (24), and the tightening screw (24) passes through the connecting sleeve (11) and the fixing rod (10) and abuts against the threaded rod (17).
6. The bearing inner groove grinding device according to claim 3, characterized in that: There are four clamping plates (19), one side of the clamping plates (19) is provided with an internal thread, and the clamping plates (19) are arranged in a circular array on the threaded rod (17).