CN219633323U - Intelligent numerical control mechanism with stable grinding height precision - Google Patents

Abstract

The utility model discloses an intelligent numerical control mechanism with stable grinding height precision, which comprises a grinding wheel box, an upper grinding wheel, a lower grinding wheel, two groups of lever mechanisms, two groups of rotating mechanisms, two groups of measuring mechanisms and a lifting mechanism, wherein the lever mechanisms comprise a bent rod, a rocker, a rotating tube and an amplifying rod, the rotating tube is rotationally connected with the rotating mechanism, the rotating mechanism is used for driving the rotating tube to rotate, the amplifying rod is movably connected with the measuring mechanism, the rocker is movably connected with the lower end of the amplifying rod, the lower end of the rotating tube is provided with a rotating seat, a fastening piece is arranged on the rotating seat, the fastening piece upwards penetrates through the bent rod and is fixedly connected with the lower end of the rocker, and the end part of the bent rod is provided with a contact head which is contacted with the grinding wheel.

Description

Intelligent numerical control mechanism with stable grinding height precision

Technical Field

The utility model relates to the field of metal cutting machine tools, in particular to an intelligent numerical control mechanism with stable grinding height precision.

Background

In the grinding process of the double-end-face grinding machine, the grinding surface of the grinding wheel can produce different abrasion loss of each grinding wheel due to the quality of the grinding wheel, the structure of the machine tool, the grinding dullness of the grinding wheel and the like, the accurate compensation of each grinding wheel cannot be realized, the grinding parts are scrapped sometimes after the grinding of a plurality of grinding wheels, and the traditional processing method is that an operator manually operates the grinding machine, namely the compensation quantity is increased or reduced. And then, the height dimension of the part is ground again until the drawing is required. The method has the defects of high requirements on the skill of operators, high labor intensity and poor consistency of the height and the size of the ground parts. In view of the above problems, a solution is proposed below.

Disclosure of Invention

The utility model aims to provide an intelligent numerical control mechanism with stable grinding height precision, which has the advantages of high precision and stability, and reduces the skill requirement on operators through automatic regulation and control.

The technical aim of the utility model is realized by the following technical scheme:

the utility model provides a grinding high accuracy stable intelligent numerical control mechanism, includes the emery wheel case, goes up emery wheel, lower emery wheel, two sets of lever mechanism, two sets of rotary mechanism, two sets of measuring mechanism and elevating system, two sets of rotary mechanism fixes respectively in the both sides of emery wheel case, elevating system with one of them a set of rotary mechanism is connected, elevating system is used for adjusting this rotary mechanism's height, lever mechanism includes bent lever, rocker, swinging tube and amplifying rod, the swinging tube is pegged graft on rotary mechanism, and rotates with rotary mechanism and be connected, rotary mechanism is used for driving the rotation of swinging tube, the amplifying rod is vertical to be set up in the swinging tube, the upper end and the measuring mechanism swing joint of amplifying rod, the lower extreme at the amplifying rod is vertically connected to the rocker, the rocker pastes with the lower extreme swing joint of amplifying rod, the lower extreme of swinging tube is equipped with the rolling seat, be equipped with the fastener on the rolling seat, the fastener upwards runs through the bent lever, and with the rocker lower extreme fixed connection of lower extreme, the contact head is equipped with the contact roller, the contact roller is equipped with the end face of the measuring head, the contact roller is equipped with the end face of the measuring mechanism, and is used for the contact roller.

Preferably, the lever mechanism further comprises a bearing pin and a tension spring pin, the lower section of the amplifying rod is provided with a bearing hole, the bearing pin is embedded in the bearing hole, bearings are arranged at two ends of the bearing pin, the bearings are respectively embedded in side wall holes at two sides of the rotating tube, the middle upper section of the amplifying rod is provided with a tension spring hole, the tension spring pin is embedded in the tension spring hole, a tension spring is sleeved on the tension spring pin, one end of the tension spring is fixed with the tension spring pin, and the other end of the tension spring is fixed with the rotating tube.

Preferably, the rotating mechanism comprises a base, the base is sleeved on the middle lower section of the rotating pipe, one group of the base of the rotating mechanism is fixedly connected with the grinding wheel box, the other group of the base of the rotating mechanism is fixedly connected with the lifting mechanism, the upper end and the lower end of the inside of the base are respectively provided with an angular contact bearing, the rotating pipe is spliced at the inner edges of the two angular contact bearings and is fixedly connected with the inner edges of the angular contact bearings, the upper end of the base is provided with a round nut, the lower end of the round nut is provided with a stop washer, the round nut is sleeved on the rotating pipe and is in threaded connection with the rotating pipe, and the round nut is used for fixing the rotating pipe so that the rotating pipe cannot move.

Preferably, the rotating mechanism further comprises a sector gear, the sector gear is located at the upper end of the round nut and is fixedly connected with the rotating tube through a flat key, and the sector gear is used for driving the rotating tube to rotate.

Preferably, the measuring mechanism comprises a left-hand emergency fixed switch, a right-hand emergency fixed switch, a distance meter and a sliding block, wherein the sliding block is positioned at the upper end of the rotating tube and is in sliding connection with the upper end of the amplifying rod, the amplifying rod is used for driving the sliding block to move, the distance meter is fixed on one side of the upper section of the rotating tube, the distance meter is used for detecting the sliding distance of the sliding block, the left-hand emergency fixed switch and the right-hand emergency fixed switch are both fixed in the rotating tube, and the left-hand emergency fixed switch and the right-hand emergency fixed switch are respectively positioned on two sides of the upper section of the amplifying rod.

Preferably, the lifting mechanism comprises a concave carriage, a convex carriage, a lifting gear and a driving screw, wherein the convex carriage is fixedly connected with the side wall of the sand wheel box, the concave carriage is in sliding connection with the convex carriage, the rotating mechanism is fixedly connected with one side of the concave carriage, the driving screw is fixed on the convex carriage and is rotationally connected with the convex carriage, the lifting gear is fixedly connected with the top of the driving screw, the lifting gear is used for driving the driving screw to rotate, a threaded hole is formed in the concave carriage, and the concave carriage is in threaded connection with the driving screw through the threaded hole.

The beneficial effects of the utility model are as follows: when an external servo motor drives a sector gear to rotate back and forth through a gear, the sector gear can drive a rotating pipe to rotate, the rotating pipe can drive a bent rod to rotate after rotating, one end of the bent rod drives a contact head to move on the surface of a grinding wheel, accuracy of the grinding wheel is detected, when the surface of the grinding wheel has a small drop, the bent rod can drive the lower end of a rocker to swing, so that the upper end of the rocker drives the lower end of an amplifying rod to swing, the upper end of the amplifying rod can drive a sliding block to move in a large distance during swing, and a range finder detects displacement of the sliding block to measure and calculate the drop degree of the surface of the grinding wheel.

Drawings

FIG. 1 is a schematic diagram of an embodiment;

FIG. 2 is an enlarged view of region A of FIG. 1;

FIG. 3 is a schematic diagram showing the structure of a lever mechanism according to an embodiment;

FIG. 4 is an enlarged view of region B of FIG. 2;

FIG. 5 is an enlarged view of region C of FIG. 2;

fig. 6 is a schematic top view of an embodiment.

Reference numerals: 1. a grinding wheel box; 11. a grinding wheel is arranged; 12. a lower grinding wheel; 2. a lever mechanism; 21. a contact; 22. bending a rod; 23. a rocker; 24. a rotary tube; 25. an amplifying lever; 26. a rotating seat; 27. a bearing pin; 28. a tension spring pin; 3. a lifting mechanism; 31. a concave carriage; 32. a convex carriage; 33. a lifting gear; 34. a drive screw; 4. a measuring mechanism; 41. a left emergency setting switch; 42. a right emergency setting switch; 43. a range finder; 44. a slide block; 5. a rotating mechanism; 51. a base; 52. angular contact bearings; 53. a stop washer; 54. a round nut; 55. sector gears.

Detailed Description

The following description is only of the preferred embodiments of the present utility model, and the scope of the present utility model should not be limited to the examples, but should be construed as falling within the scope of the present utility model. Wherein like parts are designated by like reference numerals. It should be noted that the words "front", "back", "left", "right", "upper" and "lower" used in the following description refer to directions in the drawings, and the words "bottom" and "top", "inner" and "outer" refer to directions toward or away from, respectively, the geometric center of a particular component.

As shown in fig. 1 to 6, the grinding high-precision stable intelligent numerical control mechanism comprises a grinding wheel box 1, an upper grinding wheel 11, a lower grinding wheel 12, two groups of lever mechanisms 2, two groups of rotating mechanisms 5, two groups of measuring mechanisms 4 and a lifting mechanism 3. The upper grinding wheel 11 and the lower grinding wheel 12 are both fixed in the grinding wheel box 1. The lifting mechanism 3 is fixed on one side of the grinding wheel box 1, two groups of rotating mechanisms 5 are respectively fixed on two sides of the grinding wheel box 1, one group of rotating mechanisms 5 is fixedly connected with the grinding wheel box 1, and the group of rotating mechanisms 5 are used for detecting the lower grinding wheel 12; the other group of rotating mechanisms 5 is fixedly connected with the lifting mechanism 3, and the lifting mechanism 3 can adjust the height of the group of rotating mechanisms 5 so that the rotating mechanisms 5 can realize the detection of the upper grinding wheel 11.

The rotating mechanism 5 comprises a base 51, and the base 51 is connected with the side wall of the wheel box 1 or the lifting mechanism 3. The lever mechanism 2 comprises a rotating tube 24, and the middle lower section of the rotating tube 24 is inserted into a base 51. The upper end and the lower end inside the base 51 are fixedly provided with angular contact bearings 52, the rotating pipe 24 is inserted into the inner edges of the two angular contact bearings 52 and fixedly connected with the inner edges of the angular contact bearings 52, the angular contact bearings 52 can fix the height of the rotating pipe 24, and the rotating pipe 24 and the base 51 can rotate. The two angular contact bearings 52 are spaced apart to provide a more stable fixation of the rotating tube 24.

In order to prevent the rotary pipe 24 from shaking, a round nut 54 is arranged at the upper end of the base 51, a stop washer 53 is arranged below the round nut 54, and the round nut 54 is sleeved on the rotary pipe 24 and is in threaded connection with the rotary pipe 24. The diameter of the portion where the rotating tube 24 is connected with the round nut 54 is smaller, and the round nut 54 is fixedly and rotatably connected with the base 51, so that the round nut 54 can fix the rotating tube 24, and the rotating tube 24 cannot move up and down.

The rotating mechanism 5 further comprises a sector gear 55, the sector gear 55 is located at the upper end of the round nut 54, the sector gear 55 is fixedly connected with the rotating tube 24 through a flat key, the sector gear 55 is meshed with an external gear, and an external power source such as a motor can drive the sector gear 55 to rotate by driving the external gear to rotate, so that the sector gear 55 drives the rotating tube 24 to rotate.

The lifting mechanism 3 comprises a concave carriage 31, a convex carriage 32, a lifting gear 33 and a transmission screw 34, the rotating mechanism 5 is fixedly connected with one side of the concave carriage 31, the concave carriage 31 is slidably connected with the convex carriage 32, and the convex carriage 32 is fixedly connected with the side wall of the sand wheel box 1. The drive screw 34 is fixed on the convex carriage 32 and is in rotary connection with the convex carriage 32, and the lifting gear 33 is fixedly connected with the top of the drive screw 34. The concave dragging plate 31 is provided with a threaded hole, and the concave dragging plate 31 is in threaded connection with the transmission screw 34 through the threaded hole. The lifting gear 33 can drive the driving screw 34 to rotate, and when the driving screw 34 rotates, the concave dragging plate 31 is driven to move in the vertical direction. When the concave carriage 31 moves, the base 51 is driven to move, so that the heights of a rotating mechanism 5 and a lever mechanism 2 are adjusted.

The lever mechanism 2 comprises a bent rod 22, a rocker 23, a rotating pipe 24 and an amplifying rod 25, wherein the amplifying rod 25 is vertically arranged in the rotating pipe 24, the upper end of the amplifying rod 25 is movably connected with the measuring mechanism 4, the rocker 23 is vertically connected with the lower end of the amplifying rod 25 and is movably connected with the lower end of the amplifying rod 25, and the amplifying rod 25 is driven to swing when the rocker 23 swings.

The bent rod 22 is transversely arranged at the lower end of the rocker 23, and one end of the bent rod 22 is attached to the lower end face of the rocker 23. The lower end of the rotary pipe 24 is provided with a rotary seat 26, the rotary seat 26 is provided with a fastener, and the fastener upwards penetrates through the bent rod 22 and is fixedly connected with the lower end of the rocker 23. The fastener is a member such as a screw that can fix the rotation seat 26, the bent lever 22, and the rocker 23. When the rotating tube 24 rotates, the rotating tube 24 drives the bent rod 22 to do circular motion through the rotating seat 26. The end of the bent rod 22, which is far away from the rocker 23, is provided with a contact head 21, and when the bent rod 22 rotates, the contact head 21 moves on the surface of the grinding wheel to detect the fineness of the surface of the grinding wheel. That is, when the surface of the grinding wheel has a larger drop, the contact head 21 can bump, so that one end of the bent rod 22 vibrates, and the other end of the bent rod 22 drives the lower end of the rocker 23 to shake, so that the rocker 23 starts to shake. The upper end of the rocker 23 drives the amplifying rod 25 to shake, so that the upper end of the amplifying rod 25 generates displacement, and the measuring mechanism 4 passes through or detects displacement data generated at the upper end of the amplifying rod 25, so that the computer can calculate the degree of grinding surface of the grinding wheel.

The lever mechanism 2 further comprises a bearing pin 27 and a tension spring pin 28, the lower section of the amplifying rod 25 is provided with a bearing hole, the bearing pin 27 is embedded in the bearing hole, the two ends of the bearing pin 27 are respectively provided with bearings, the two bearings are respectively embedded in side wall holes on the two sides of the rotating tube 24, the middle upper section of the amplifying rod 25 is provided with a tension spring hole, the tension spring pin 28 is embedded in the tension spring hole, a tension spring is sleeved on the tension spring pin 28, one end of the tension spring is fixed with the tension spring pin 28, and the other end of the tension spring is fixed with the rotating tube 24.

The measuring mechanism 4 comprises a left emergency fixed switch 41, a right emergency fixed switch 42, a distance meter 43 and a sliding block 44, wherein the left emergency fixed switch 41 and the right emergency fixed switch 42 are fixed in the rotary tube 24, and the left emergency fixed switch 41 and the right emergency fixed switch 42 are respectively positioned on two sides of the upper section of the amplifying rod 25. The slider 44 is located at the upper end of the rotation tube 24 and is slidably connected to the upper end of the amplification lever 25. When the amplifying rod 25 swings, it drives the slider 44 to slide greatly. The distance meter 43 is fixed on one side of the upper section of the rotary pipe 24, the distance meter 43 can detect the sliding displacement of the sliding block 44 and send displacement data of the sliding block 44 to the computer, and the computer can calculate the roughness of the surface of the grinding wheel through the displacement data of the sliding block 44.

Working principle and effect: 1. the working principle of the position of the grinding wheel during grinding surface debugging is maintained: the method comprises the following steps: by taking the following grinding wheel 12 as an example, after the grinding surface of the lower grinding wheel 12 is corrected, under the action of a tension spring, the lever swings anticlockwise by a small angle to drive the amplifying rod 25 to swing clockwise by a larger angle, the amplifying rod 25 swings rightwards to drive the sliding block 44 to move rightwards, if the computer instructs the grinding wheel to move upwards slowly, meanwhile, the distance meter 43 continuously measures the distance between the right end face of the sliding block 44, the measured value is continuously compared with the value of the distance between the right end face of the sliding block 44 and the grinding surface position of the lower grinding wheel 12 measured by the distance meter 43 under the condition that the computer is stored-the measured value is equal or the measured value is smaller than the stored value sufficiently close (the precision requirement is met), then the computer instructs the servo motor to stop rotating, namely the lower grinding wheel 12 stops moving upwards, and the position can be considered as the position when the grinding surface is debugged. The same principle can identify the position of the upper grinding wheel 11 when the grinding surface is debugged.

The second method is as follows: by taking the lower grinding wheel 12 as an example, after the grinding surface of the lower grinding wheel 12 is corrected, under the action of a tension spring, the lever swings anticlockwise by a small angle to drive the amplifying rod 25 to swing clockwise by a larger angle, the upper end of the amplifying rod 25 swings rightwards by a larger angle to enable the right emergency setting switch 42 to sense, the computer receives a signal of the right emergency setting switch 42 to instruct the servo motor which controls the lower grinding wheel 12 to move up and down to rotate, so that the lower grinding wheel 12 moves upwards slowly, the lever swings clockwise slowly, namely, the amplifying rod 25 swings anticlockwise, the upper end of the amplifying rod 25 swings leftwards to enable the right emergency setting switch 42 not to sense, the computer receives a signal which does not sense the right emergency setting switch 42 to instruct the servo motor which controls the lower grinding wheel 12 to move up and down to stop rotating, and at the moment, the grinding surface position of the lower grinding wheel 12 is the position when the grinding surface of the lower grinding wheel 12 is debugged.

The reason is as follows: firstly, assuming that the grinding surface of the lower grinding wheel 12 is slightly higher than the debugging position at the moment, the lever swings clockwise by a small angle to drive the amplifying rod 25 to swing anticlockwise by a larger angle, the upper end of the amplifying rod 25 swings leftwards by a larger angle to enable the left emergency setting switch 41 to sense, the computer receives a signal of the left emergency setting switch 41 to instruct a servo motor for controlling the lower grinding wheel 12 to move up and down to enable the lower grinding wheel 12 to move downwards slowly, when the left emergency setting switch 41 does not sense, the computer receives a signal for controlling the left emergency setting switch 41 not to sense, and instructs the servo motor for controlling the lower grinding wheel 12 to move up and down to stop rotating, so that the upper end of the amplifying rod 25 cannot sense the left emergency setting switch, namely the grinding surface position of the lower grinding wheel 12 at the debugging moment only when the grinding surface position of the lower grinding wheel 12 is the debugging position. Secondly, assuming that the grinding surface of the lower grinding wheel 12 is lower than the debugging position by a bit, the lever swings anticlockwise by a small angle to drive the amplifying rod 25 to swing clockwise by a larger angle, the upper end of the amplifying rod 25 swings rightwards to enable the right emergency setting switch 42 to sense, the computer receives a signal of the right emergency setting switch 42, instructs a servo motor for controlling the lower grinding wheel 12 to move up and down to rotate, enables the lower grinding wheel 12 to move slowly and upwards, and when the right emergency setting switch 42 does not sense, the computer receives a signal for not sensing the right emergency setting switch 42 and instructs the servo motor for controlling the lower grinding wheel 12 to move up and down to stop rotating, so that only if the grinding surface position of the lower grinding wheel 12 is the debugging position, the upper end of the amplifying rod 25 cannot sense the left emergency setting switch and the right emergency setting switch, namely the grinding surface position of the lower grinding wheel 12 during debugging.

Similarly, the grinding surface position of the upper grinding wheel 11 is only the debugging position, so that the upper end of the amplifying rod 25 can not sense the left and right emergency setting switches. The two methods are innovative, and have the advantages that after the grinding surface of the grinding wheel is corrected, the grinding surface can be automatically adjusted to the position during debugging, the labor intensity and skill requirements of operators are greatly reduced, and the consistency of the height and the size of the ground part is improved.

2. Working principle of automatically adjusting grinding height position: the computer controls the servo motor to drive the gears on the shaft heads to rotate, so that the engaged lifting gears 33 rotate, and the long flat key drives the transmission screw 34 to rotate, so that the concave carriage 31 is driven to move up and down, namely, the rotating mechanism 5, the lever mechanism 2 and the measuring device which are arranged on the concave carriage 31 move up and down together, thereby adapting to the process requirements of grinding the parts with different heights, which require the grinding wheel 11 to be arranged at different positions, and enabling the contact head 21 to contact the grinding wheel 11. The innovation has the advantages that the debugging productivity of grinding parts with different heights is improved;

the two technical characteristics are combined, so that the grinding height precision is controlled by intelligent numerical control all the time from the start of a new grinding wheel to the finish of grinding of the grinding wheel in the grinding process, the labor intensity and the skill requirements of operators are greatly reduced, and the grinding height precision can be kept stable.

The technical problems, technical solutions and advantageous effects solved by the present utility model have been further described in detail in the above-described embodiments, and it should be understood that the above-described embodiments are only illustrative of the present utility model and are not intended to limit the present utility model, and any modifications, equivalent substitutions, improvements, etc. within the spirit and principle of the present utility model should be included in the scope of protection of the present utility model.

Claims (6)

1. The utility model provides a grinding high accuracy stable intelligent numerical control mechanism, includes emery wheel case (1), goes up emery wheel (11), lower emery wheel (12), two sets of lever mechanism (2), two sets of slewing mechanism (5), two sets of measuring mechanism (4) and elevating system (3), its characterized in that, two sets of slewing mechanism (5) are fixed respectively in the both sides of emery wheel case (1), elevating system (3) are connected with one of them set of slewing mechanism (5), elevating system (3) are used for adjusting the height of this slewing mechanism (5), lever mechanism (2) include bent lever (22), rocker (23), slewing pipe (24) and amplifying lever (25), slewing pipe (24) are pegged graft on slewing mechanism (5), and are connected with slewing mechanism (5) rotation, amplifying lever (25) are vertical to be set up in slewing pipe (24), the upper end and the measuring mechanism (4) swing joint of amplifying lever (25), vertical connection is in the lower extreme of amplifying lever (25), rocker (23) are equipped with bent lever (22) and lower extreme (23) are equipped with the lower extreme (24) of amplifying lever (25), rocker (23) are equipped with the lower extreme (23) and are equipped with the bent lever (24), the utility model discloses a grinding wheel mechanism, including grinding wheel box (1), bent rod (22), rotating seat (26) are last to be equipped with the fastener, the fastener upwards runs through bent rod (22), and with the lower extreme fixed connection of rocker (23), two passageways have been seted up on the lateral wall of grinding wheel box (1), one end that rocker (23) were kept away from to bent rod (22) passes the passageway, and is located grinding wheel box (1), the tip of bent rod (22) is equipped with contact head (21), one of them contact head (21) on bent rod (22) and the lower terminal surface contact of last grinding wheel (11), another contact head (21) on bent rod (22) and the up end contact of lower grinding wheel (12), rotating mechanism (5) are used for driving rotation tube (24) to make contact head (21) remove at the grinding wheel surface, measuring mechanism (4) are used for detecting the deflection distance of lever mechanism (2).

2. The intelligent numerical control mechanism with stable grinding height precision according to claim 1, wherein the lever mechanism (2) further comprises a bearing pin (27) and a tension spring pin (28), the bearing pin (27) is embedded in the bearing hole, bearings are arranged at two ends of the bearing pin (27), the two bearings are respectively embedded in side wall holes at two sides of the rotating tube (24), a tension spring hole is arranged at the middle upper section of the amplifying rod (25), the tension spring pin (28) is embedded in the tension spring hole, a tension spring is sleeved on the tension spring pin (28), one end of the tension spring is fixed with the tension spring pin (28), and the other end of the tension spring is fixed with the rotating tube (24).

3. The intelligent numerical control mechanism with stable grinding height precision according to claim 1, wherein the rotating mechanism (5) comprises a base (51), the base (51) is sleeved on the middle lower section of the rotating tube (24), one group of the bases (51) of the rotating mechanism (5) is fixedly connected with the grinding wheel box (1), the other group of the bases (51) of the rotating mechanism (5) is fixedly connected with the lifting mechanism (3), angular contact bearings (52) are respectively arranged at the upper end and the lower end of the inside of the base (51), the rotating tube (24) is inserted at the inner edges of the two angular contact bearings (52) and fixedly connected with the inner edges of the angular contact bearings (52), a round nut (54) is arranged at the upper end of the base (51), a stop washer (53) is arranged at the lower end of the round nut (54), the round nut (54) is sleeved on the rotating tube (24) and is in threaded connection with the rotating tube (24), and the round nut (54) is used for fixing the rotating tube (24) so that the rotating tube (24) cannot move.

4. A grinding highly accurate stable intelligent numerical control mechanism according to claim 3, characterized in that the rotating mechanism (5) further comprises a sector gear (55), the sector gear (55) is located at the upper end of the round nut (54), the sector gear (55) is fixedly connected with the rotating tube (24) through a flat key, and the sector gear (55) is used for driving the rotating tube (24) to rotate.

5. The intelligent numerical control mechanism for stabilizing grinding height precision according to claim 1, wherein the measuring mechanism (4) comprises a left emergency setting switch (41), a right emergency setting switch (42), a distance meter (43) and a sliding block (44), the sliding block (44) is located at the upper end of the rotating tube (24) and is slidably connected with the upper end of the amplifying rod (25), the amplifying rod (25) is used for driving the sliding block (44) to move, the distance meter (43) is fixed on one side of the upper section of the rotating tube (24), the distance meter (43) is used for detecting the sliding distance of the sliding block (44), the left emergency setting switch (41) and the right emergency setting switch (42) are both fixed in the rotating tube (24), and the left emergency setting switch (41) and the right emergency setting switch (42) are located on two sides of the upper section of the amplifying rod (25) respectively.

6. The intelligent numerical control mechanism with stable grinding height precision according to claim 1, wherein the lifting mechanism (3) comprises a concave carriage (31), a convex carriage (32), a lifting gear (33) and a transmission screw (34), the convex carriage (32) is fixedly connected with the side wall of the grinding wheel box (1), the concave carriage (31) is slidably connected with the convex carriage (32), the rotating mechanism (5) is fixedly connected with one side of the concave carriage (31), the transmission screw (34) is fixed on the convex carriage (32) and is rotationally connected with the convex carriage (32), the lifting gear (33) is fixedly connected with the top of the transmission screw (34), the lifting gear (33) is used for driving the transmission screw (34) to rotate, a threaded hole is formed in the concave carriage (31), and the concave carriage (31) is in threaded connection with the transmission screw (34) through the threaded hole.