Shaft cylindrical surface numerical control grinding machine and method for roll shaft machining

Abstract

The invention discloses a shaft cylindrical surface numerical control grinding machine and method for roll shaft machining, and relates to the technical field of numerical control grinding machines. The shaft cylindrical surface numerical control grinding machine for roll shaft machining comprises a grinding machine body, and the grinding machine body is provided with a clamping assembly used for fixing a roll shaft, an adjusting assembly used for detecting the grinding state and changing the position of the roll shaft and an auxiliary assembly used for keeping the precision of the detection result of the adjusting assembly. The sensor is slidably mounted in the collecting tank and is driven by external force to change the position so as to adjust the detection position; by monitoring and adjusting the contact state between the roller shaft and the grinding wheel in real time, the contact uniformity in the grinding process can be ensured, the problems of surface defects, size deviation and the like caused by uneven contact can be reduced, and therefore the machining quality and precision of workpieces are improved, and the machining efficiency is improved. And meanwhile, the refined control mechanism is also beneficial to keeping the correct geometrical shape of the grinding wheel, and the wear rate of the grinding wheel can be reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of numerically controlled grinding machines, and particularly to a numerically controlled grinding machine and method for the cylindrical surface of a shaft for roll shaft processing. Background Art

[0002] During the process of roll shaft processing, a numerically controlled grinding machine is usually used to precisely grind the turned roll shaft to obtain the required geometric shape and surface quality. However, during the use of traditional numerically controlled grinding machines, due to reasons such as unbalanced grinding wheels, improper workpiece clamping, or vibrations during the grinding process, the grinding wheels wear unevenly and cannot maintain the correct geometric shape, resulting in a reduction in the quality of grinding processing. For example, a high-hardness coating surface rapid finishing device and method disclosed in the publication number CN109848769A can weaken vibrations and avoid problems such as chatter marks and unqualified cylindricity of workpieces, but it cannot avoid the problem of uneven wear of the grinding wheel caused by unbalanced grinding wheels and improper workpiece clamping, resulting in a reduction in the quality of grinding processing. A grinding device for a numerically controlled lathe disclosed in the publication number CN222344997U can clean the debris on the surface of the grinding part in a timely manner, but it also has the problem of uneven wear of the grinding wheel caused by the inability to ensure the balance of the grinding wheel and improper workpiece clamping, resulting in a reduction in the quality of grinding processing. Therefore, a numerically controlled grinding machine and method for the cylindrical surface of a shaft for roll shaft processing are proposed. Summary of the Invention

[0003] Aiming at the deficiencies of the prior art, the present invention provides a numerically controlled grinding machine and method for the cylindrical surface of a shaft for roll shaft processing, which solves the problems raised in the background art.

[0004] To achieve the above objectives, the present invention is realized through the following technical solutions: A numerically controlled grinding machine for the cylindrical surface of a shaft for roll shaft processing includes a grinding machine body, a control console fixed on the front of the grinding machine body to control the processing process, a shielding plate fixed on the top of the grinding machine body to shield the debris generated during processing, a collection groove fixed inside the shielding plate, and a grinding wheel driven by a power element for grinding processing. A clamping assembly for fixing the roll shaft, an adjustment assembly for detecting the grinding state and changing the position of the roll shaft, and an auxiliary assembly for maintaining the accuracy of the detection results of the adjustment assembly are provided on the grinding machine body. The adjustment assembly includes: A moving plate, slidably installed in the collection groove, changes its position under the drive of an external force to adjust the detection position; a sensor, fixed on the top of the moving plate, detects the grinding state and transmits the data to the control console through a wireless signal; a movable shaft, arranged on the clamping assembly, changes the position of the roll shaft according to the detection results of the sensor under the drive of an external force.

[0005] Preferably, the adjusting assembly further includes: a protective cover, fixed on the top of the moving plate and covering the sensor to improve the detection accuracy; a fixed electromagnet, fixed on the side wall of the collecting groove; a fixed magnet, fixed on the bottom of the moving plate, magnetically cooperating with the fixed electromagnet to fix the position of the moving plate; a guide rod, fixed at the bottom in the collecting groove and slidably penetrating through the moving plate at the top to limit the moving direction of the moving plate.

[0006] Preferably, the adjusting assembly further includes: a push rod, one end of which abuts against one end of the moving plate and drives the moving plate to move under the action of an external force; a lower slide plate, movably installed in the collecting groove through a first mounting shaft, and the side wall thereof slidably abuts against the side wall of the push rod; a second mounting shaft, fixedly penetrating through the push rod, and the other end thereof is movably installed on the side wall of the collecting groove through a fixed seat; an upper slider, located above the lower slide plate, and drives the lower slide plate to flip around the first mounting shaft under the action of an external force.

[0007] Preferably, the adjusting assembly further includes: an adjusting motor, providing power for adjusting the position of the roller shaft; an adjusting shaft, one end of which is fixed to the output end of the adjusting motor; an adjusting gear, fixed to the other end of the adjusting shaft and meshing with the teeth on the surface of the movable shaft; a limiting rod, one end of which is fixed to the other end of the movable shaft.

[0008] Preferably, the clamping assembly includes: a power motor, fixed in the housing of the grinding machine body, providing power for the movement of the roller shaft; a threaded rod, fixed to the output end of the power motor; a sliding plate, threadedly sleeved on the threaded rod, and driving the roller shaft to move towards the side where the grinding wheel is located under the drive of the power motor; a support plate, the side wall of which is fixed to the other end of the movable shaft; an extrusion rod, installed in the support plate to clamp the roller shaft.

[0009] Preferably, the clamping assembly further includes: a fixing plate, fixed to one end of the extrusion rod; a guiding column, one end of which is fixed to the side wall of the support plate and the other end slidably penetrates out of the fixing plate; a first spring, one end of which is fixed to the side wall of the support plate and the other end is fixed to the side wall of the fixing plate; an adjusting magnet, the side wall of which is fixed to the side wall of the fixing plate; an adjusting electromagnet, one end of which is fixed to the side wall of the support plate, magnetically cooperating with the adjusting magnet to change the position of the extrusion rod to clamp the roller shaft.

[0010] Preferably, the clamping assembly further includes: a sliding rod, one end of which slidably penetrates out of the sliding plate; a support block, the side wall of which is fixed to the other end of the sliding rod; an electric push rod, one end of which is fixed to the side wall of the sliding plate and the other end is fixed to the end of the sliding rod away from the support block to change the position of the support block to adjust the size of the clamped roller shaft.

[0011] Preferably, the auxiliary component includes: a positioning plate, the bottom of which is fixed to the top of the moving plate; a fixing block, which is slidably inserted into the positioning plate; a support rod, one end of which is slidably inserted into the fixing block; a second spring, one end of which is fixed to the side wall of the support rod and the other end of which is fixed inside the fixing block; a brush plate, one end of which is fixed to the support rod; and a driven rod, one end of which is fixed to the side wall of the fixing block.

[0012] The present invention also provides a grinding method applicable to a numerically controlled grinding machine for the cylindrical surface of a shaft used for roller shaft processing, including the following steps: S1. Fix the roller shaft to be ground in the clamping component. S2. Control the clamping component through the console to drive the fixed roller shaft to move towards the grinding wheel, so as to perform grinding processing. S3. Use the sensor in the adjustment component controlled by the console to detect the temperature in the contact area between the grinding wheel and the roller shaft, and transmit the detection result to the console for judging the uniformity of temperature distribution. S4. According to the judgment result obtained in step S3, drive the adjustment component to operate, and at the same time use the auxiliary component to assist the adjustment component to operate. S5. Remove the roller shaft after grinding processing, and replace it with the next roller shaft to be ground.

[0013] Preferably, when the sensor in the adjustment component operates, it is located directly below the contact area between the grinding wheel and the roller shaft.

[0014] The present invention provides a numerically controlled grinding machine and method for the cylindrical surface of a shaft used for roller shaft processing. Compared with the prior art, it has the following beneficial effects: (1). The numerically controlled grinding machine and method for the cylindrical surface of a shaft used for roller shaft processing can adapt to workpieces of various specifications, improve the versatility and flexibility of the equipment, quickly and accurately adjust the clamping position and the distance between the workpiece and the grinding wheel, simplify the preparation work process, reduce the changeover time, avoid problems of over-grinding or under-grinding caused by improper spacing, thereby ensuring the machining accuracy. By precisely controlling the contact force and position between the workpiece and the grinding wheel, unnecessary wear can be reduced, the service life of the grinding wheel can be extended, and the production cost can be reduced.

[0015] (2). The numerically controlled grinding machine and method for the cylindrical surface of a shaft used for roller shaft processing can ensure the contact uniformity during the grinding process by real-time monitoring and adjusting the contact state between the roller shaft and the grinding wheel, which helps to reduce problems such as surface defects and dimensional deviations caused by uneven contact, thereby improving the machining quality and accuracy of the workpiece. At the same time, this refined control mechanism also helps to maintain the correct geometric shape of the grinding wheel, can reduce the wear rate of the grinding wheel, effectively extend the service life of the grinding wheel, reduce the replacement frequency, and reduce the cost.

[0016] (3) The CNC grinding machine and method for the cylindrical surface of the roller shaft used in the present invention can effectively prevent pollutants such as grinding debris and coolant splashing generated during the grinding process from directly contacting the surface of the sensor. By automatically brushing the protective cover before each grinding operation, it can ensure that the sensor always obtains clear and unobstructed detection conditions, thereby guaranteeing the accuracy of the measurement data. Regularly cleaning the protective cover ensures the stability and reliability of the system, reduces the risk of production interruption or product quality problems caused by inaccurate sensor readings. At the same time, this automatic cleaning mechanism also reduces manual intervention, improves production efficiency, reduces maintenance costs, further ensures the continuity and efficiency of the processing process, and ensures the stability and consistency of product quality.

[0017] Other features and advantages of the present invention will be described in the following specific embodiments, and some of them will become obvious from the description or can be understood by implementing the present invention. The objectives and other advantages of the present invention can be achieved and obtained through the structures specifically pointed out in the written description and the drawings. Brief Description of the Drawings

[0018] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is another perspective view of the overall structure of the present invention; Figure 3 It is a structural diagram of the position of the grinding wheel of the present invention; Figure 4 It is a structural diagram of the position of the electric push rod of the present invention; Figure 5 It is a structural diagram of the position of the threaded rod of the present invention; Figure 6 It is a structural diagram of the position of the adjusting electromagnet of the present invention; Figure 7 It is a structural diagram of the position of the adjusting motor of the present invention; Figure 8 It is a schematic diagram of the position of the driven rod of the present invention; Figure 9 It is a schematic diagram of the combined state of the fixing block of the present invention; Figure 10 It is a schematic diagram of the disassembled state of the support rod of the present invention; Figure 11 It is a schematic diagram of the disassembled state of the protective cover of the present invention.

[0019] In the figure: 1. Grinding machine body; 11. Control console; 12. Baffle plate; 13. Grinding wheel; 14. Roller shaft; 2. Power motor; 21. Threaded rod; 22. Sliding plate; 23. Support plate; 24. Extrusion rod; 25. Fixed plate; 26. Guide post; 27. First spring; 28. Adjusting magnet; 29. Adjusting electromagnet; 210. Sliding rod; 211. Support block; 212. Electric push rod; 3. Adjusting motor; 31. Adjusting shaft; 32. Adjusting gear; 33. Moving shaft; 34. Limiting rod; 301. First mounting shaft; 302. Second mounting shaft; 303. Upper slider; 304. Lower sliding plate; 305. Push rod; 306. Moving plate; 307. Guide rod; 35. Fixed electromagnet; 36. Fixed magnet; 37. Sensor; 38. Protective cover; 4. Positioning plate; 41. Brush plate; 42. Support rod; 43. Second spring; 44. Fixed block; 45. Driven rod; 5. Collection tank. Specific implementation mode

[0020] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0021] Please refer to Figures 1 to 11 , the present invention provides the following technical solutions: Embodiment 1: A numerically controlled grinding machine for the cylindrical surface of a roller shaft during processing, including a grinding machine body 1, a control console 11 fixedly installed on the front of the grinding machine body 1 to control the processing process, a baffle plate 12 fixedly installed on the top of the grinding machine body 1 to block the debris generated during processing, a collection tank 5 fixedly installed in the baffle plate 12, and a grinding wheel 13 driven by a power element for grinding processing. A clamping assembly for fixing the roller shaft 14 is provided on the grinding machine body 1. The clamping assembly includes: a power motor 2, a threaded rod 21, a sliding plate 22, a support plate 23, an extrusion rod 24, a fixed plate 25, a guide post 26, a first spring 27, an adjusting magnet 28, an adjusting electromagnet 29, a sliding rod 210, a support block 211, and an electric push rod 212; The side wall of the power motor 2 is fixedly installed inside the housing of the grinding machine body 1. The power motor 2 is used to provide power for the movement of the roller shaft 14. One end of the threaded rod 21 is fixedly installed on the output end of the power motor 2 through a coupling, and the other end of the threaded rod 21 is movably installed on the side wall inside the housing through a bearing. The sliding plate 22 is threadedly sleeved on the threaded rod 21. Driven by the power motor 2, the sliding plate 22 drives the roller shaft 14 to move towards the side where the grinding wheel 13 is located. The side wall of one of the support plates 23 is fixedly installed on the side wall of the sliding plate 22. The side wall of one of the extrusion rods 24 is slidably installed inside the corresponding support plate 23, and the other extrusion rod 24 is movably installed inside the support plate 23 on the other side through a bearing and can be driven by a power element to rotate. The two extrusion rods 24 cooperate with each other to clamp the roller shaft 14; The side wall of the fixing plate 25 is fixedly installed at one end of one of the extrusion rods 24. One end of the guiding column 26 is fixedly installed on the side wall of the support plate 23, and the other end of the guiding column 26 slidably passes out of the fixing plate 25. One end of the first spring 27 is fixedly installed on the side wall of the support plate 23, and the other end of the first spring 27 is fixedly installed on the side wall of the fixing plate 25. The side wall of the adjusting magnet 28 is fixedly installed on the side wall of the fixing plate 25. One end of the adjusting electromagnet 29 is fixedly installed on the side wall of the support plate 23. The adjusting electromagnet 29 and the adjusting magnet 28 are magnetically matched to change the position of the extrusion rod 24 to clamp the roller shaft 14; One end of the sliding rod 210 slidably passes out of the sliding plate 22. The side wall of the support block 211 is fixedly installed at the other end of the sliding rod 210. A fixed connection is provided between the side wall of the support block 211 and the support plate 23 on the other side. One end of the electric push rod 212 is fixedly installed on the side wall of the sliding plate 22, and the other end of the electric push rod 212 is fixedly connected to the end of the sliding rod 210 away from the support block 211. The electric push rod 212 is used to change the position of the support block 211 to adjust the size of the clamped roller shaft 14.

[0022] During use, by placing the roller shaft 14 to be ground between the two extrusion rods 24, the console 11 is used to control the electromagnetism after the adjusting electromagnet 29 is energized to attract the adjusting magnet 28, so that the adjusting magnet 28 drives the fixing plate 25 to move synchronously from the side where the support plate 23 is located to the side where the support block 211 is located under the action of the magnetic attraction force. Through the sliding fit between the guiding column 26 and the fixing plate 25, the support plate 23 provides a supporting force for the guiding column 26, so that the fixing plate 25 can only move linearly during movement. The fixing plate 25 drives the extrusion rod 24 on the side where the support plate 23 is located to move synchronously, so that the two extrusion rods 24 cooperate with each other to fix the roller shaft 14 to be processed; After the fixation is completed, the power motor 2 is controlled to start through the console 11. The power motor 2 drives the threaded rod 21 to rotate. The threaded rod 21 is in threaded engagement with the sliding plate 22, and the sliding plate 22 is in sliding engagement with the housing, so that the sliding plate 22 can move linearly along the housing under the drive of the threaded rod 21. The sliding plate 22 drives the support plate 23 to move, the support plate 23 drives the extrusion rod 24 to move, the sliding plate 22 synchronously drives the sliding rod 210 to move, and the sliding rod 210 drives the support block 211 to move, so that the support block 211 drives the support plate 23 and the extrusion rod 24 on the other side to move synchronously. The roller 14 to be ground is moved to the grinding wheel 13, and the power element is controlled through the console 11 to drive the grinding wheel 13 to rotate, and then the grinding operation can be carried out; During the grinding process, a driving member is provided to drive the support plate 23 to move linearly in the vertical direction along the sliding plate 22, so that the support plate 23 can drive the roller 14 to move toward the side where the grinding wheel 13 is located, so that the grinding wheel 13 can fully grind the surface of the roller 14; After the grinding is completed, the console 11 controls the regulating electromagnet 29 to cut off the power, so that the regulating magnet 28 can no longer obtain the magnetic attraction force toward the side where the regulating electromagnet 29 is located, and the regulating magnet 28 and the fixing plate 25 move toward the side away from the regulating electromagnet 29 under the action of the first spring 27, so that the two extrusion rods 24 release the clamping of the roller 14. Subsequently, the console 11 controls the power motor 2 to reverse, so that the sliding plate 22 drives the whole to reset to Figure 1 the position shown, and then the next roller 14 to be ground can be installed, realizing efficient and precise grinding of the roller and improving the processing quality and efficiency; Further, after the grinding of the previous roller 14 is completed and removed, after replacing and installing the next roller 14, the console 11 controls the power motor 2 to reverse, so that the grinding operation of the next roller 14 can be completed during the process of the sliding plate 22 resetting, improving the processing efficiency; The console 11 controls the electric push rod 212 to start. The electric push rod 212 drives the sliding rod 210 to move, and the sliding rod 210 drives the support block 211 to move. Driven by the support block 211, the support plates 23 on both sides of the roller 14 move away from each other, so as to adapt to the clamping requirements of rollers 14 of various lengths and sizes.

[0023] Embodiment 2. The technical solution of this embodiment different from that of Embodiment 1 includes: The sliding plate 22 is no longer directly fixed to one of the support plates 23.

[0024] An adjustment assembly for detecting the grinding state and changing the position of the roller shaft 14 is provided on the grinding machine body 1. The adjustment assembly includes: an adjustment motor 3, an adjustment shaft 31, an adjustment gear 32, a movable shaft 33, a limiting rod 34, a first mounting shaft 301, a second mounting shaft 302, an upper slider 303, a lower slide plate 304, a push rod 305, a moving plate 306, a guide rod 307, a sensor 37, and a protective cover 38; The side wall of the adjustment motor 3 is fixedly installed on the side wall of the support plate 23 through a motor box. The adjustment motor 3 is used to provide power for adjusting the position of the roller shaft 14. One end of the adjustment shaft 31 is connected to the output shaft of the adjustment motor 3. The side wall of the adjustment gear 32 is fixedly installed on the other end of the adjustment shaft 31 and meshes with the teeth on the surface of the movable shaft 33. One end of the movable shaft 33 is fixedly installed on the side wall of one of the support plates 23. The movable shaft 33 changes the position of the roller shaft 14 according to the detection result of the sensor 37 under the drive of an external force; One end of the limiting rod 34 is fixed to the other end of the movable shaft 33. The other end of the limiting rod 34 slidably passes through the sliding plate 22. The top of the upper slider 303 is fixedly installed at the bottom of one of the support plates 23 and is located above the lower slide plate 304. The upper slider 303 drives the lower slide plate 304 to flip around the first mounting shaft 301 under the action of an external force. The lower slide plate 304 is movably installed in the collection tank 5 through the first mounting shaft 301, and the side wall slidably abuts against the side wall of the push rod 305. One end of the push rod 305 slidably abuts against one end of the moving plate 306 and drives the moving plate 306 to move under the action of an external force. One end of the second mounting shaft 302 is fixedly inserted into the push rod 305. The other end of the second mounting shaft 302 is movably installed on the side wall of the collection tank 5 through a fixed seat. One end of the moving plate 306 is slidably installed in the collection tank 5 and changes its position under the drive of an external force to adjust the detection position. The bottom of the guide rod 307 is fixedly installed in the collection tank 5. The top of the guide rod 307 slidably passes through the moving plate 306. The guide rod 307 is used to limit the moving direction of the moving plate 306; The side wall of the fixed electromagnet 35 is fixedly installed on the side wall of the collection tank 5. One end of the fixed magnet 36 is fixedly installed at the bottom of the moving plate 306. The fixed magnet 36 is magnetically coupled with the fixed electromagnet 35. The fixed magnet 36 is used to fix the position of the moving plate 306. The sensor 37 is fixedly installed on the top of the moving plate 306. The sensor 37 is used to detect the grinding state and transmit data to the console 11 through a wireless signal. The bottom of the protective cover 38 is fixedly installed on the top of the moving plate 306 and covers the sensor 37. The protective cover 38 is used to block debris to improve the detection accuracy.

[0025] During use, during the grinding process of the pair of roller shafts 14, the collecting groove 5 is used to collect the coolant for cooling the grinding wheel 13. The collecting groove 5 provides a supporting force for the guide rod 307. The guide rod 307 guides and limits the moving plate 306 to ensure that the moving plate 306 moves stably in the horizontal direction. The moving plate 306 provides a supporting force for the sensor 37, enabling the sensor 37 to move synchronously with the moving plate 306 to directly below the grinding wheel 13. The sensor 37 is used to detect in real time the temperature change on the surface of the roller shaft 14 after being ground by the grinding wheel 13, and to judge whether the contact between the grinding wheel 13 and the roller shaft 14 is uniform according to the temperature distribution in the contact area between the grinding wheel 13 and the roller shaft 14; If the contact is uneven, the console 11 is used to control the start of both groups of adjustment motors 3. The adjustment motors 3 drive the adjustment shafts 31 to rotate. The adjustment shafts 31 drive the adjustment gears 32 to rotate. The adjustment gears 32 mesh with the teeth on the surface of the movable shafts 33, so that the adjustment gears 32 drive the movable shafts 33 to rotate. When the movable shafts 33 rotate, the corresponding support plates 23 are driven to rotate, so that the support plates 23 can drive the roller shaft 14 to deflect through the pressing rods 24 after rotation, thereby adjusting the contact position between the roller shaft 14 and the grinding wheel 13, ensuring uniform grinding, improving the processing accuracy and surface quality, and avoiding surface grinding defects of the roller shaft 14 and uneven wear on the surface of the grinding wheel 13 caused by uneven contact, so that the grinding wheel 13 can maintain the correct geometric shape and profile to ensure that it can complete the grinding task efficiently and accurately; When the roller shaft 14 moves towards the side where the grinding wheel 13 is located under the drive of the power motor 2, the support block 211 can synchronously drive the upper slider 303 to move. Through the sliding fit between the upper slider 303 and the lower slide plate 304, the upper slider 303 can push the lower slide plate 304 to deflect towards the side where the collecting groove 5 is located with the mounting shaft one 301 as the axis. The lower slide plate 304 pushes the push rod 305, so that the push rod 305 can deflect towards the side where the collecting groove 5 is located with the mounting shaft two 302 as the axis. The push rod 305 pushes the moving plate 306 to move, so that the moving plate 306 drives the sensor 37 to move directly below the grinding wheel 13. At the same time, the moving plate 306 drives the fixed magnet 36 to move. The console 11 is used to control the magnetism of the fixed electromagnet 35 after being energized to attract the fixed magnet 36, so that the fixed magnet 36 can be kept in its position. Even if the upper slider 303 and the lower slide plate 304 are separated, it will not easily reset, ensuring that the sensor 37 is kept below the grinding wheel 13 to monitor the temperature change in real time, so as to timely and accurately adjust the contact state between the roller shaft 14 and the grinding wheel 13. By setting the protective cover 38 to be transparent, splashes generated during the grinding process are avoided from interfering with the sensor 37, ensuring the accuracy of the detection results of the sensor 37; In another embodiment different from the foregoing embodiments, a frosted plate is arranged above the collection tank 5, and the frosted plate is arranged in a shape that is high on the side where the lower slide plate 304 is located and low on the side where the moving plate 306 is located. Similarly, a symmetric frosted plate can be arranged on the other side of the moving plate 306 to form a ramp structure to guide the coolant to move towards the side where the moving plate 306 is located. The frosted plate effectively intercepts the debris of the grinding wheel 13 and the roller shaft 14 generated during the grinding process. Only the coolant can flow along the frosted plate to the protective cover 38, thereby flushing the surface of the protective cover 38, avoiding the debris of the grinding wheel 13 and the roller shaft 14 remaining on the surface of the protective cover 38, and improving the detection accuracy of the sensor 37.

[0026] Furthermore, a filter screen can be additionally arranged at the bottom of the collection tank 5 to intercept fine debris, so that the coolant can be recycled. Or a water pump and a nozzle can be additionally arranged at the collection tank, and the filtered coolant is used by the water pump to flush the protective cover 38 through the nozzle, further improving the cleaning effect of the protective cover 38.

[0027] The technical solution of this embodiment different from the foregoing embodiments includes: an auxiliary component for maintaining the accuracy of the detection result of the adjustment component is arranged on the grinding machine body 1, and the auxiliary component includes a positioning plate 4, a brush plate 41, a support rod 42, a second spring 43, a fixing block 44, and a driven rod 45; The bottom of the positioning plate 4 is fixedly installed on the top of the moving plate 306. One end of the brush plate 41 is fixedly installed on the support rod 42. One end of the support rod 42 is slidably inserted into the fixing block 44. One end of the second spring 43 is fixedly installed on the side wall of the support rod 42, and the other end of the second spring 43 is fixedly installed in the fixing block 44. One end of the fixing block 44 is slidably inserted into the positioning plate 4. One end of the driven rod 45 is fixedly installed on the side wall of the fixing block 44, and the other end of the driven rod 45 is located obliquely below the lower slide plate 304 and drives the fixing block 44 to move under the drive of the lower slide plate 304.

[0028] During use, the moving plate 306 provides a supporting force to the positioning plate 4, the positioning plate 4 provides a supporting force to the fixed block 44, the fixed block 44 provides a supporting force to the support rod 42, and the support rod 42 provides a supporting force to the brush plate 41. During the process of the lower slide plate 304 flipping around the mounting shaft 1 301, the lower slide plate 304 simultaneously squeezes and moves the driven rod 45, causing the driven rod 45 to drive the fixed block 44 to move synchronously. The fixed block 44 drives the support rod 42 to move downward synchronously, bringing the brush plate 41 into contact with the surface of the protective cover 38, thereby brushing the surface of the protective cover 38. As the fixed block 44 moves downward, the brush plate 41 also moves outward following the shape of the protective cover 38. The brush plate 41 moves along the fixed block 44 away from the side where the protective cover 38 is located under the squeezing of the protective cover 38 until the brush plate 41 completely disengages from the surface of the protective cover 38, ensuring a comprehensive and efficient brushing process, further improving the cleanliness of the protective cover 38, maintaining the accuracy of the detection by the sensor 37, and thus optimizing the stability and reliability of the overall processing system. After the brush plate 41 brushes the protective cover 38, the sensor 37 also just moves to directly below the grinding wheel 13 under the drive of the moving plate 306 and is ready to perform the detection operation.

[0029] Furthermore, a set of magnets and electromagnets are also provided at the bottom of the fixed block 44 and the top of the moving plate 306 to magnetically fix the fixed block 44 that has moved to the side closest to the moving plate 306, preventing the brush plate 41 from resetting to the Figure 8 position shown, which may affect the detection operation of the sensor 37.

[0030] In another embodiment different from the foregoing embodiment, instead of driving the fixed block 44 to move through the lower slide plate 304, the water flow ejected by the nozzle is used to impact the brush plate 41, enabling the brush plate 41 to continuously brush the surface of the protective cover 38 multiple times. The water flow impact force can be changed. When the water flow is small, the brush plate 41 resets to the initial position under the action of the second spring 43. When the water flow is large, the brush plate 41 moves along the protective cover 38 to perform the brushing operation.

[0031] The embodiment of the present invention also provides a grinding method applicable to a numerically controlled grinding machine for the cylindrical surface of a roller shaft used in roller shaft processing, including the following steps: S1. Fix the roller shaft 14 to be subjected to grinding processing in the clamping assembly; S2. Control the clamping assembly through the console 11 to drive the fixed roller shaft 14 to move towards the grinding wheel 13, thereby performing the grinding processing; S3. Use the console 11 to control the sensor 37 in the adjustment assembly to detect the temperature in the contact area between the grinding wheel 13 and the roller shaft 14, and transmit the detection result to the console 11 for judging the uniformity of the temperature distribution; S4. According to the judgment result obtained in step S3, drive the adjustment component to operate, and at the same time use the auxiliary component to assist the adjustment component to operate; S5. Remove the roller 14 after grinding and replace it with the next roller 14 to be ground.

[0032] At the same time, the content not described in detail in this specification belongs to the prior art well known to those skilled in the art.

[0033] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements not only includes those elements, but also includes other elements not expressly listed, or further includes elements inherent to such process, method, article or device.

[0034] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A CNC grinding machine for machining cylindrical surfaces of roller shafts, comprising a grinding machine body (1), a control console (11) fixed to the front of the grinding machine body (1) for controlling the machining process, a shielding plate (12) fixed to the top of the grinding machine body (1) for shielding debris generated during machining, a collecting tank (5) fixed in the shielding plate (12), and a grinding wheel (13) driven by a power element for grinding, characterized in that: The grinding machine body (1) is provided with a clamping component for fixing the roller shaft (14), an adjusting component for detecting the grinding state and changing the position of the roller shaft (14), and an auxiliary component for maintaining the accuracy of the detection result of the adjusting component, wherein the adjusting component comprises: A movable plate (306) is slidably mounted in the collecting tank (5) and changes position under the drive of an external force to adjust the detection position; A sensor (37) is fixed on the top of the movable plate (306) to detect the grinding state and transmit the data to the control console (11) via a wireless signal; The movable shaft (33) is arranged on the clamping assembly and, under the drive of an external force, changes the position of the roller shaft (14) according to the detection result of the sensor (37).

2. A CNC grinding machine for cylindrical surface of roller shaft machining according to claim 1, characterized in that: The adjustment component also includes: A protective cover (38) is fixed on the top of the movable plate (306) and covers the sensor (37) to improve detection accuracy; A fixed electromagnet (35) fixed on a side wall of the collecting tank (5); A fixed magnet (36) is fixed to the bottom of the movable plate (306) and is magnetically matched with the fixed electromagnet (35) to fix the position of the movable plate (306); The guide rod (307) has a bottom portion fixed in the collecting groove (5) and a top portion slidably inserted into the movable plate (306) to limit the moving direction of the movable plate (306).

3. A CNC grinding machine for cylindrical surface of roller shaft machining according to claim 1, characterized in that: The adjustment component also includes: A push rod (305) has one end abutting against one end of the moving plate (306) and drives the moving plate (306) to move under the action of an external force; The lower slide plate (304) is movably mounted in the collecting tank (5) via the first mounting shaft (301), and the side wall thereof is slidably abutted against the side wall of the push rod (305); The second mounting shaft (302) is fixedly inserted into the push rod (305), and the other end is movably mounted on the side wall of the collecting tank (5) through a fixing seat; The upper sliding block (303) is located above the lower sliding block (304) and is driven by an external force to turn the lower sliding block (304) around the first mounting axis (301) as the axis.

4. The CNC grinding machine for cylindrical surface of roller shaft machining according to claim 1, characterized in that: The adjustment component also includes: An adjusting motor (3) provides power for adjusting the position of the roller shaft (14); An adjusting shaft (31), one end of which is fixed to the output end of the adjusting motor (3); An adjusting gear (32) is fixed to the other end of the adjusting shaft (31) and meshes with teeth on the surface of the movable shaft (33); One end of the limiting rod (34) is fixed to the other end of the movable shaft (33).

5. The CNC grinding machine for cylindrical surface of roller shaft machining according to claim 1, characterized in that: The clamping assembly comprises: A power motor (2) is fixed in the housing of the grinding machine body (1) and provides power for the roller shaft (14) to move; A threaded rod (21) is fixed to the output end of the power motor (2); The sliding plate (22) is threadedly sleeved on the threaded rod (21) and driven by the power motor (2) to drive the roller shaft (14) to move toward the side where the grinding wheel (13) is located; A support plate (23) having a side wall fixed to the other end of the movable shaft (33); The extrusion rod (24) is installed in the support plate (23) to clamp the roller shaft (14).

6. A CNC grinding machine for cylindrical surface of roller shaft machining according to claim 5, characterized in that: The clamping assembly also includes: A fixing plate (25) fixed to one end of the extrusion rod (24); A guide column (26), one end of which is fixed to the side wall of the support plate (23) and the other end of which is slidably passed through the fixing plate (25); A spring (27), one end of which is fixed to the support plate (23) and the other end of which is fixed to the side wall of the fixing plate (25); An adjusting magnet (28) has a side wall fixed to a side wall of the fixing plate (25); The side wall of the adjusting electromagnet (29) is fixed on the side wall of the support plate (23) and is magnetically matched with the adjusting magnet (28) to change the position of the squeezing rod (24) to clamp the roller shaft (14).

7. The CNC grinding machine for cylindrical surface of roller shaft machining according to claim 5, characterized in that: The clamping assembly also includes: A sliding rod (210), one end of which slides out of the sliding plate (22); A support block (211) having a side wall fixed to the other end of the sliding rod (210); The electric push rod (212) has one end fixed to the side wall of the sliding plate (22) and the other end fixed to an end of the sliding rod (210) away from the support block (211), and the size of the clamped roller (14) is adjusted by changing the position of the support block (211).

8. The CNC grinding machine for cylindrical surface of roller shaft for machining according to claim 1, characterized in that: The auxiliary components include: A positioning plate (4), the bottom of which is fixed to the top of the moving plate (306); A fixed block (44) is slidably disposed in the positioning plate (4); A support rod (42), one end of which is slidably inserted into the fixing block (44); A second spring (43), one end of which is fixed to the side wall of the support rod (42) and the other end of which is fixed in the fixing block (44); A brush plate (41), one end of which is fixed on a support rod (42); One end of the driven rod (45) is fixed on the side wall of the fixed block (44).

9. A grinding method for a cylindrical surface of a shaft by a CNC grinder for roller machining, applicable to any one of claims 1 to 8, characterized in that: The following steps are involved: S1, fixing the roller shaft (14) to be ground in a clamping assembly; S2, controlling the clamping assembly through the control console (11) to drive the fixed roller (14) to move toward the grinding wheel (13), thereby performing a grinding process; S3, using the control console (11) to control the sensor (37) in the adjustment component to detect the temperature in the contact area between the grinding wheel (13) and the roller (14), and transmitting the detection result to the control console (11) to determine the uniformity of the temperature distribution; S4, according to the judgment result obtained in step S3, driving the regulating component to operate, and using the auxiliary component to assist the regulating component to operate; S5. Remove the roller shaft (14) after grinding and replace it with the next roller shaft (14) to be ground.

10. The grinding method according to claim 9, characterized in that: When the sensor (37) in the adjustment assembly is in operation, it is located directly below the contact area between the grinding wheel (13) and the roller (14).

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