Grinding wheel dressing device

Abstract

The utility model relates to abrasive wheel dressing technical field, specifically speaking, it is a kind of abrasive wheel dressing device. It includes abrasive wheel frame, the inside of abrasive wheel frame is provided with speed regulating motor, the speed regulating motor is fixedly connected with abrasive wheel frame, the top of abrasive wheel frame is provided with dressing abrasive wheel, the middle part of dressing abrasive wheel is provided with the main shaft of vertical downward arrangement, the dressing abrasive wheel is fixedly connected with main shaft, the lower end surface of main shaft and the upper end surface of speed regulating motor output shaft are provided with shaft coupling;Dressing abrasive wheel upper wall surface is provided with the abrasive wheel pressing plate for pressing dressing abrasive wheel. The problem that sand wheel needs to be disassembled and repaired again and needs to be counterweighted is solved.

Description

Technical Field

[0001] This utility model relates to the field of grinding wheel dressing technology, specifically a grinding wheel dressing device. Background Technology

[0002] Currently, when using a rotary grinding machine to process materials, the abrasive on the outer circumference of the grinding wheel will fall off during processing, which will affect the geometry of the grinding wheel and its grinding performance. Therefore, it is necessary to dress the outer circumference of the grinding wheel to restore its normal geometry and restore its grinding performance.

[0003] Existing grinding wheel dressing methods typically involve: removing the grinding wheel from the rotary grinding machine and dressing it separately; or changing the tooling on the rotary grinding machine and dressing the grinding wheel on the grinding machine itself. In most cases, the grinding wheel is manually removed and then repaired using a grinding machine or other equipment; in a few cases, the grinding wheel is removed and the fixture is replaced, and the repair is completed using the original equipment.

[0004] Existing technologies all require disassembling the grinding wheel for repair, and after disassembling the grinding wheel, it may be necessary to re-weight the grinding wheel, which is not only time-consuming and labor-intensive, but also has an adverse effect on processing efficiency. Utility Model Content

[0005] In order to solve the problems in related technologies, this utility model provides a grinding wheel dressing device, which solves the problems of needing to disassemble the grinding wheel for repair and also needing to add weight to the grinding wheel.

[0006] To solve the above problems, the following technical solutions are provided:

[0007] This utility model discloses a grinding wheel dressing device, which includes a grinding wheel frame, a speed-regulating motor installed inside the grinding wheel frame and fixedly connected to the grinding wheel frame, a dressing grinding wheel installed at the top of the grinding wheel frame, a vertically downward-arranged main shaft installed in the middle of the dressing grinding wheel, the dressing grinding wheel being fixedly connected to the main shaft, and a coupling installed between the lower end face of the main shaft and the upper end face of the output shaft of the speed-regulating motor; and a grinding wheel pressure plate for pressing the dressing grinding wheel is installed on the upper wall of the dressing grinding wheel.

[0008] The above solution incorporates a speed-regulating motor and a dressing wheel. The speed-regulating motor is fixed inside the grinding wheel holder, and the dressing wheel is connected to the speed-regulating motor via the spindle, forming an integrated structure that can be directly integrated onto the rotary grinding machine. This reduces equipment investment, lowers costs, and minimizes floor space. Integrating the grinding wheel dressing device onto the rotary grinding machine eliminates the need to disassemble the dressing wheel. The speed-regulating motor directly drives the dressing wheel to rotate, directly grinding and dressing the outer diameter of the dressing wheel. This avoids the cumbersome process of disassembling and re-weighting the grinding wheel, saving time and effort. This reduces processing time and improves efficiency. With the adjustable speed motor, wheel dressing can be automatically completed simply by controlling the motor's speed, requiring minimal manual intervention and significantly reducing the difficulty and error of manual operation. The wheel clamping plate secures the dressing wheel to the spindle, facilitating easy disassembly and assembly. It eliminates the need for complex dynamic balancing steps; the wheel clamping plate alone is sufficient to tighten the dressing wheel, eliminating the need for dynamic balancing. This solves the problem of needing to disassemble the grinding wheel for repair and to add weights.

[0009] An angular contact bearing is fitted onto the main shaft at the top of the grinding wheel holder. Bearing caps are fitted onto the outer walls of both ends of the angular contact bearing. A main shaft sleeve is fitted onto the outer wall of the middle part of the angular contact bearing. The main shaft sleeve is connected to the bearing caps by a lock nut, and the main shaft sleeve is connected to the grinding wheel holder by a lock nut.

[0010] In the above solution, the angular contact bearing is sleeved on the spindle and connected to the grinding wheel holder through the spindle sleeve. It is used to bear the radial and axial loads when the spindle rotates, and also ensures the rotational accuracy of the dressing grinding wheel, avoiding dressing errors caused by vibration. The angular contact bearing is pre-tightened by the locking nuts at both ends and the bearing caps, which reduces the clearance of the angular contact bearing, improves the rigidity and stability of the spindle assembly, and extends the service life of the device. The mating structure between the angular contact bearing and the spindle sleeve is simple, easy to disassemble and maintain, and reduces equipment maintenance costs.

[0011] The grinding wheel frame has a through hole in the middle, and the output shaft of the speed-regulating motor is arranged vertically upward through the through hole.

[0012] The above solution ensures the coaxiality of the speed-regulating motor and the spindle by using through holes, avoiding transmission errors and vibrations caused by eccentricity; the grinding wheel frame is fixedly connected to the speed-regulating motor to prevent motor shaking from affecting the finishing effect.

[0013] The dressing wheel is provided with a fixing frame, and one side of the fixing frame is open.

[0014] The above solution uses a fixed frame to prevent grinding debris from splashing during dressing, improving operational safety. The open design does not affect the contact grinding between the dressing wheel and the dressed wheel. The shape of the fixed frame can be customized according to the size of the dressing wheel, providing stable external support and preventing the dressing wheel from shifting due to external impact, thus ensuring dressing accuracy.

[0015] The upper end of the fixed frame is hinged to a cover plate, and a downwardly bent part is fixedly provided on the cover plate. The bent part is provided with a first threaded hole, and a second threaded hole corresponding to the first threaded hole is provided on the side wall of the fixed frame. The bent part is fixedly connected to the fixed frame by bolts, and the bolts pass through the first threaded hole and the second threaded hole in sequence and are tightened.

[0016] The above solution facilitates the installation or replacement of the dressing wheel by setting up the cover plate; after the cover plate is closed, the bent part is fixed to the fixed frame by bolts, which enhances the sealing of the protective structure and further prevents the flying of grinding debris; the bolt connection allows for adjustment of the tightness between the cover plate and the fixed frame as needed, effectively preventing the cover plate from vibrating and loosening, and improving the reliability of the device.

[0017] A fixing member is provided in the middle of the grinding wheel pressure plate, and the fixing member extends into the spindle, so that the grinding wheel pressure plate is fixedly connected to the spindle.

[0018] The above solution uses fasteners to ensure a tight connection between the grinding wheel pressure plate and the spindle, avoiding the risk of the grinding wheel pressure plate becoming loose. This ensures the coaxiality and connection strength between the dressing grinding wheel and the spindle, preventing the dressing grinding wheel from falling off during high-speed rotation. It also ensures that the axial force of the dressing grinding wheel is evenly transmitted to the spindle, reducing vibration caused by eccentric loads and improving the stability and accuracy of the dressing process.

[0019] The above solution has the following advantages:

[0020] 1. The grinding wheel dressing device of this utility model, through the setting of a speed-regulating motor and a dressing wheel, with the speed-regulating motor fixed inside the grinding wheel holder and the dressing wheel connected to the speed-regulating motor via the spindle, forms an integrated structure that can be directly integrated into a rotary grinding machine. This helps reduce equipment investment, lower costs, and reduce floor space. By integrating the grinding wheel dressing device into the rotary grinding machine, there is no need to disassemble the grinding wheel to be dressed. The speed-regulating motor directly drives the dressing wheel to rotate, directly grinding and dressing the outer diameter of the grinding wheel. This avoids the tedious process of disassembling and assembling the grinding wheel and re-weighting, saving time and improving processing efficiency. With the setting of the speed-regulating motor, only the speed of the speed-regulating motor needs to be controlled to automatically complete the grinding wheel dressing without much manual intervention, thereby greatly reducing the difficulty of manual operation and dressing errors.

[0021] 2. The upper wall of the dressing wheel is equipped with a grinding wheel pressure plate for pressing the dressing wheel. The dressing wheel is fixed to the spindle by the grinding wheel pressure plate, which is convenient for disassembly and assembly. There is no need for complicated dynamic balancing counterweight steps. The dressing wheel can be pressed by the grinding wheel pressure plate alone, without the need for dynamic balancing counterweights. Attached Figure Description

[0022] To make the content of this utility model easier to understand, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings, wherein:

[0023] Figure 1 This is a schematic diagram of a grinding wheel dressing device;

[0024] Figure 2 This is a schematic diagram of the internal structure of a grinding wheel dressing device;

[0025] Figure 3 A cross-sectional view of a grinding wheel dressing device;

[0026] Figure 4 for Figure 3 Enlarged structural diagram of section A in the middle;

[0027] Figure 5 This is a schematic diagram of the working state of a grinding wheel dressing device;

[0028] Figure 6 This is a schematic diagram of the internal structure of a grinding wheel dressing device in operation.

[0029] Explanation of reference numerals in the attached diagram: 1. Grinding wheel holder; 2. Speed-regulating motor; 3. Dressing grinding wheel; 4. Spindle; 5. Output shaft; 6. Coupling; 7. Grinding wheel pressure plate; 8. Angular contact bearing; 9. Bearing cover; 10. Spindle sleeve; 11. Lock nut; 12. Fixing component; 13. Fixing frame; 14. Cover plate; 15. Bending part; 16. Bolt; 17. Dressed grinding wheel; 18. Drive motor. Detailed Implementation

[0030] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0031] In specific embodiment 1, such as Figures 1-6As shown, the present invention provides a grinding wheel dressing device comprising a grinding wheel frame 1, a speed-regulating motor 2 housed inside the grinding wheel frame 1, the speed-regulating motor 2 being fixedly connected to the grinding wheel frame 1, a dressing wheel 3 mounted on the top of the grinding wheel frame 1, a vertically downward-arranged main shaft 4 mounted in the middle of the dressing wheel 3, the dressing wheel 3 being fixedly connected to the main shaft 4, and a coupling 6 being mounted between the lower end face of the main shaft 4 and the upper end face of the output shaft 5 of the speed-regulating motor 2; through the arrangement of the speed-regulating motor 2 and the dressing wheel 3, the speed-regulating motor 2 is fixed inside the grinding wheel frame 1, and the dressing wheel 3 is connected to the speed-regulating motor 2 via the main shaft 4, forming an integrated structure. It can be directly integrated into the rotary grinding machine, which helps to reduce equipment investment, lower costs, and reduce floor space. By integrating the grinding wheel dressing device into the rotary grinding machine, there is no need to disassemble the grinding wheel 17 to be dressed. The dressing grinding wheel 3 can be directly driven to rotate by the speed-regulating motor 2 to grind and dress the outer circle of the grinding wheel 17. This avoids the tedious process of disassembling and assembling the grinding wheel and re-balancing, saving time and improving processing efficiency. With the setting of the speed-regulating motor 2, the grinding wheel dressing can be automatically completed by simply controlling the speed of the speed-regulating motor 2, without much manual intervention, which greatly reduces the difficulty of manual operation and dressing error.

[0032] like Figure 3 , 4 As shown, an angular contact bearing 8 is fitted onto the main shaft 4 located at the top of the grinding wheel holder 1. Bearing caps 9 are fitted onto the outer walls of both ends of the angular contact bearing 8. A main shaft sleeve 10 is fitted onto the outer wall of the middle section of the angular contact bearing 8. The main shaft sleeve 10 is connected to the bearing caps 9 via locking nuts 11, and the main shaft sleeve 10 is connected to the grinding wheel holder 1 via locking nuts 11. The angular contact bearing 8, fitted onto the main shaft 4 and connected to the grinding wheel holder 1 via the main shaft sleeve 10, is used to bear the radial and axial loads during the rotation of the main shaft 4. It also ensures the rotational accuracy of the dressing grinding wheel 3, avoiding dressing errors caused by vibration. The angular contact bearing 8 is pre-tightened by the locking nuts 11 at both ends and the bearing caps 9, reducing the clearance of the angular contact bearing 8, improving the rigidity and stability of the main shaft 4 assembly, and extending the service life of the device. The mating structure between the angular contact bearing 8 and the main shaft sleeve 10 is simple, facilitating disassembly, assembly, and maintenance, thus reducing equipment maintenance costs.

[0033] like Figure 3 As shown, a through hole is provided in the middle of the grinding wheel frame 1, and the output shaft 5 of the speed-regulating motor 2 is arranged vertically upward through the through hole to ensure the coaxiality of the speed-regulating motor 2 and the spindle 4, and to avoid transmission errors and vibrations caused by eccentricity; the grinding wheel frame 1 is fixedly connected to the speed-regulating motor 2 to prevent the motor from shaking and affecting the dressing effect.

[0034] like Figure 1As shown, a fixing frame 13 is provided outside the dressing wheel 3. One side of the fixing frame 13 is open, which helps to prevent grinding debris from splashing during the dressing process, improves operational safety, and the open design does not affect the contact grinding between the dressing wheel 3 and the dressing wheel 17. The shape of the fixing frame 13 can be customized according to the size of the dressing wheel 3, providing stable external support, avoiding displacement of the dressing wheel 3 due to external force collision, and ensuring dressing accuracy. A cover plate 14 is hinged to the upper end of the fixed frame 13 to facilitate the installation or replacement of the dressing wheel 3. A downwardly oriented bent portion 15 is fixedly provided on the cover plate 14. The bent portion 15 is provided with a first threaded hole, and a second threaded hole corresponding to the first threaded hole is provided on the side wall of the fixed frame 13. The bent portion 15 and the fixed frame 13 are fixedly connected by bolts 16. The bolts 16 pass through the first threaded hole and the second threaded hole in sequence and are tightened. After the cover plate 14 is closed, the bent portion 15 is fixed to the fixed frame 13 by the bolts 16, which enhances the sealing of the protective structure and further prevents the flying of grinding debris. The use of bolts 16 allows for adjustment of the tightness of the cover plate 14 and the fixed frame 13 as needed, effectively preventing the cover plate 14 from vibrating and loosening, and improving the reliability of the device.

[0035] In a specific embodiment 2, such as Figures 2-4 As shown, the difference between this embodiment and Embodiment 1 is that the upper wall of the dressing wheel 3 in this embodiment is provided with a grinding wheel pressure plate 7 for pressing the dressing wheel 3. Through the setting of the grinding wheel pressure plate 7, the dressing wheel 3 is fixed to the spindle 4 by the grinding wheel pressure plate 7, which is convenient for disassembly and assembly. There is no need for complicated dynamic balancing counterweight steps. The dressing wheel 3 is pressed by the grinding wheel pressure plate 7 alone. There is no need to perform dynamic balancing counterweight on the dressing wheel 3. A fixing member 12 is provided in the middle of the grinding wheel pressure plate 7. The fixing member 12 extends into the spindle 4, so that the grinding wheel pressure plate 7 is tightly connected to the spindle 4, avoiding the risk of loosening of the grinding wheel pressure plate 7, ensuring the coaxiality and connection strength of the dressing wheel 3 and the spindle 4, and preventing the dressing wheel 3 from falling off during high-speed rotation. It also makes the axial force of the dressing wheel 3 evenly transmitted to the spindle 4, reducing the vibration caused by eccentric load, and improving the stability and accuracy of the dressing process.

[0036] like Figures 5-6 As shown, a drive motor 18 is provided on the dressing wheel 17 to drive the dressing wheel 17 to rotate.

[0037] During operation, the grinding wheel dressing device is integrated into the rotary grinding machine, and the outer wall surface of the dressing wheel 3 is in contact with the outer wall surface of the dressing wheel 17. The drive motor 18 is turned on, and the dressing wheel 17 rotates. The speed regulating motor 2 is turned on, and the dressing wheel 3 rotates. The dressing wheel 3 rotates and grinds the outer cylindrical surface of the dressing wheel 17, so that the geometry of the dressing wheel 17 is normal and the grinding performance is restored.

[0038] In the description of this utility model, it should be understood that the terms "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. In the description of this utility model, unless otherwise specified and limited, it should be noted that the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to mechanical or electrical connections, or internal connections between two components, and can be direct connections or indirect connections through an intermediate medium. For those skilled in the art, the specific meaning of the above terms can be understood according to the specific circumstances.

[0039] Obviously, the above embodiments are merely examples for clear illustration and are not intended to limit the implementation. For those skilled in the art, other variations or modifications can be made based on the above description. It is neither necessary nor possible to exhaustively list all implementation methods here, and any obvious variations or modifications derived therefrom are still within the protection scope of this utility model.

Claims

1. A grinding wheel dressing device, characterized in that, The device includes a grinding wheel holder (1), a speed-regulating motor (2) is installed inside the grinding wheel holder (1), the speed-regulating motor (2) is fixedly connected to the grinding wheel holder (1), a dressing grinding wheel (3) is installed on the top of the grinding wheel holder (1), a vertically downward-arranged main shaft (4) is installed in the middle of the dressing grinding wheel (3), the dressing grinding wheel (3) is fixedly connected to the main shaft (4), a coupling (6) is installed between the lower end face of the main shaft (4) and the upper end face of the output shaft (5) of the speed-regulating motor (2); a grinding wheel pressure plate (7) for pressing the dressing grinding wheel (3) is installed on the upper wall of the dressing grinding wheel (3).

2. The grinding wheel dressing device as described in claim 1, characterized in that, An angular contact bearing (8) is fitted onto the main shaft (4) at the top of the grinding wheel frame (1). Bearing caps (9) are fitted onto the outer walls at both ends of the angular contact bearing (8). A main shaft sleeve (10) is fitted onto the outer wall in the middle of the angular contact bearing (8). The main shaft sleeve (10) is connected to the bearing caps (9) by a locking nut (11). The main shaft sleeve (10) is connected to the grinding wheel frame (1) by a locking nut (11).

3. The grinding wheel dressing device as described in claim 1, characterized in that, The grinding wheel frame (1) has a through hole in the middle, and the output shaft (5) of the speed regulating motor (2) is arranged vertically upward through the through hole.

4. The grinding wheel dressing device as described in claim 1, characterized in that, The dressing wheel (3) is provided with a fixing frame (13), and one side of the fixing frame (13) is open.

5. The grinding wheel dressing device as described in claim 4, characterized in that, The upper end of the fixed frame (13) is hinged to a cover plate (14), and a downwardly bent part (15) is fixedly provided on the cover plate (14). The bent part (15) is provided with a first threaded hole, and a second threaded hole corresponding to the first threaded hole is provided on the side wall of the fixed frame (13). The bent part (15) and the fixed frame (13) are fixedly connected by bolts (16). The bolts (16) pass through the first threaded hole and the second threaded hole in sequence and are tightened.

6. The grinding wheel dressing device as described in claim 1, characterized in that, A fixing member (12) is provided in the middle of the grinding wheel pressure plate (7). The fixing member (12) extends into the spindle (4) so ​​that the grinding wheel pressure plate (7) is fixedly connected to the spindle (4).

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