CN113070715A

CN113070715A - Precision adjusting scheme and method for numerical control mobile platform

Info

Publication number: CN113070715A
Application number: CN202110243276.2A
Authority: CN
Inventors: 刘尊平
Original assignee: Suzhou Mianshijie Trading Co ltd
Current assignee: Suzhou Mianshijie Trading Co ltd
Priority date: 2021-03-05
Filing date: 2021-03-05
Publication date: 2021-07-06

Abstract

The invention discloses a precision adjusting scheme and a precision adjusting method of a numerical control mobile platform, and the precision adjusting scheme comprises two numerical control slide rails, wherein each numerical control slide rail comprises a base, a driving motor is fixedly arranged on each base, a first fixing block is fixedly arranged on each base, and a limiting plate which is symmetrical about the position of the driving motor is fixedly arranged on each base; the invention can detect the position of the moving plate in the plane when the numerical control moving platform works, compensate the moving error caused by abrasion, ensure the precision during moving, detect whether the moving plate is inclined by utilizing the second electrode plate arranged on the bottom surface of the moving plate and the first motor plate arranged on the top surface of the base, restore the moving plate to be horizontal by adjusting the compensation block, and adjust the maximum allowable inclination angle of the moving plate according to different working environments, so that the position detection and adjustment of the moving plate are more flexible.

Description

Precision adjusting scheme and method for numerical control mobile platform

Technical Field

The invention relates to the technical field of numerical control engineering, in particular to a precision adjusting scheme and an adjusting method of a numerical control mobile platform.

Background

Stability, accuracy and dynamics are crucial for the displacement platform, being the basis for its high productivity and reliable operation. Therefore, the speed of the displacement platform is often controlled by a numerical control system, so that the speed and the speed of the displacement platform are accurately controlled.

Because the lead screw cooperation that needs two directions moves in displacement platform working process, frequent motion can make moving part wearing and tearing appear, can lead to the removal distance of computer control platform and the not identical work that influences of actual distance after wearing and tearing, consequently need often detect and maintain numerical control platform, very occupy production time, can reduce production and work efficiency.

Disclosure of Invention

The invention aims to provide a precision adjusting scheme and an adjusting method of a numerical control mobile platform, which are used for overcoming the defects in the prior art.

According to the precision adjustment scheme of the numerical control mobile platform, the precision adjustment scheme comprises two numerical control slide rails, the numerical control slide rails comprise bases, driving motors are fixedly arranged on the bases, first fixed blocks are fixedly arranged on the bases, limiting plates which are symmetrical with respect to the positions of the driving motors are fixedly arranged on the bases, ball screws are arranged between the driving motors and the first fixed blocks, moving plates are fixedly connected onto the ball screws, two groups of sliding devices which are symmetrical with respect to the positions of the driving motors are fixedly arranged on the bottom surfaces of the moving plates, each sliding device comprises support arms which are symmetrical with respect to the positions of the limiting plates, first sliding grooves which are symmetrical with respect to the positions are arranged on the side surfaces of the limiting plates, sliding blocks which extend into the first sliding grooves are fixedly arranged on the side surfaces of the support arms which are close to the limiting plates, rotating grooves which are symmetrical, the rotating groove is rotationally connected with rollers which are in rolling connection with the upper side wall and the lower side wall of the first sliding groove, a first moving groove is arranged in the limiting plate below the first sliding groove, two first threaded shafts with symmetrical positions are rotationally connected between the upper wall and the lower wall of the first moving groove, belt wheels are fixedly arranged on the first threaded shafts, the belt wheels are driven by a belt, a moving block is connected on the belt wheels above the belt wheels in a threaded manner, the top surface of the moving block is connected with two compensating blocks extending into the first sliding groove in a pressing manner, a guide groove with an upward opening is arranged in the top surface of the compensating block, a stepping motor is fixedly arranged on the bottom wall of the first moving groove, a first rotating shaft extending upwards is fixedly arranged on the top surface of the stepping motor, a first rotating wheel is fixedly arranged on the first rotating shaft, and a first ratchet wheel is fixedly arranged on one of the first threaded shafts, a rotating wheel is provided with a pawl matched with a ratchet wheel, a compensation device capable of compensating the moving distance is arranged in the limiting plate, a fixing device capable of fixing the compensation block is arranged above the first moving groove, the limiting plate is arranged on the inner side of the base top surface and can detect whether the moving plate inclines or not and a detection device for the position symmetry of the driving motor is arranged on the moving plate.

Optionally, compensation arrangement including set up in the scanning chamber in the limiting plate roof, the scanning intracavity is equipped with photosensitive plate, the photosensitive plate top surface is equipped with the miniature photoelectric sensor of closely arranging, between the support arm the movable plate bottom surface set firmly extend to the scanning intracavity and with scanning chamber sliding connection's slide bar, the slide bar bottom has set firmly light generator.

Optionally, the fixing device includes a rotation cavity, the first rotation shaft extends upwards into the rotation cavity, a first bevel gear is fixedly arranged on the first rotation shaft in the rotation cavity, a support block symmetrical with respect to the first rotation shaft is fixedly arranged on the bottom wall of the rotation cavity, the support block is rotatably connected with a second rotation shaft, a second bevel gear meshed with the first bevel gear is fixedly arranged at the tail end of the second rotation shaft, a third bevel gear is fixedly arranged at the other end of the second rotation shaft, a third rotation shaft symmetrical with respect to the first rotation shaft is rotatably connected on the side wall of the rotation cavity, a fourth bevel gear meshed with the third bevel gear is fixedly arranged at the tail end of the third rotation shaft, a second rotation wheel having the same structural characteristics as the first rotation wheel is fixedly arranged on the third rotation shaft, and a second sliding groove is arranged between the rotation cavity and the compensation block, the rotating cavity side wall below the third rotating shaft is rotatably connected with a reciprocating lead screw extending into the second sliding groove, the reciprocating lead screw is provided with a pressing block which is in sliding connection with the second sliding groove and can be abutted against the compensation block, and the tail end of the reciprocating lead screw in the rotating cavity is fixedly provided with a second ratchet wheel matched with the second rotating wheel.

Optionally, the detection device includes set firmly in the second fixed block of base top surface, be equipped with the ascending second shifting chute of opening in the second fixed block, adjustment motor is installed to second shifting chute diapire, the adjustment motor top surface is installed and is extended to the second threaded spindle in the second shifting chute, threaded connection on the second threaded spindle with second shifting chute sliding connection's carriage release lever, first electrode piece is installed on the carriage release lever top, the movable plate bottom surface set firmly with the second electrode piece that first electrode piece position corresponds.

Optionally, a mounting table is fixedly arranged on the top surface of the moving plate of the second numerical control slide rail.

An adjusting method of a precision adjusting scheme of a numerical control mobile platform comprises the following specific steps:

the method comprises the following steps that firstly, during installation, a base of a second numerical control slide rail is installed on the top surface of a movable plate of a first numerical control slide rail, the included angle between the two numerical control slide rails is ninety degrees, a driving motor of the lower numerical control slide rail is started to control a ball screw to move left and right, the ball screw drives the upper numerical control slide rail to move left and right through the movable plate, the driving motor of the upper numerical control slide rail is started to drive the ball screw to move front and back, the ball screw drives an installation table to move front and back through the movable plate, and the installation table can be moved randomly in the horizontal plane through the;

secondly, the ball screw drives the moving plate to move, meanwhile, the moving plate drives the support arm and the sliding block to move in the first sliding groove, the sliding rod also drives the light generator to move in the scanning cavity along with the movement of the moving plate, the light generator can emit light, the light irradiates the photosensitive plate to enable the micro photoelectric sensor at the point to emit an electric signal, the signal is input into a computer, the computer can know the position of the light generator at the moment and know the moving distance of the light generator through the micro photoelectric sensor for transmitting the signal, the distance is the actual moving distance of the moving plate and is compared with the theoretically moving distance of the moving plate, if the distance is the same, the computer can control the driving motor to start again to compensate the deviation distance, and the precision during moving is ensured;

thirdly, when the moving plate moves in a horizontal state, the second electrode plate is always separated from the first electrode plate, if the moving plate inclines due to abrasion, the second electrode plate in the inclined direction is contacted with the first electrode plate so as to control the step motor in the direction to be started, the step motor drives the first bevel gear to rotate through the first rotating shaft after being started, the first bevel gear drives the second rotating shaft to rotate through the second bevel gear, the second rotating shaft drives the fourth bevel gear to rotate through the third bevel gear, the fourth bevel gear drives the second rotating wheel to rotate through the third rotating shaft, the second rotating wheel drives the reciprocating lead screw to rotate through the second ratchet wheel, the pressing block is driven to move into the second sliding groove after the reciprocating lead screw rotates, so that the pressing block is separated from the compensation block, and at the moment, the first rotating shaft cannot drive the first ratchet wheel to rotate through the first rotating wheel, when the pressing block is separated from the compensation block, the stepping motor rotates reversely and drives the first rotating wheel to rotate through the first rotating shaft, the first rotating wheel drives the first threaded shaft to rotate through the first ratchet wheel, the first threaded shaft drives the belt wheel to rotate, the belt wheel drives the other belt to rotate through the belt, the belt wheel drives the other first threaded shaft to rotate, the first threaded shaft rotates and then drives the moving block to move upwards to jack up the compensation block, the second rotating wheel cannot drive the second ratchet wheel to rotate, the compensation block can jack up the roller wheel to restore the moving plate to a horizontal state after being jacked up, when the moving plate restores to the horizontal state, the second electrode plate is separated from the first electrode plate, the stepping motor rotates reversely again to drive the reciprocating screw rod to rotate, and after the reciprocating screw rod rotates, the pressing block is driven to move towards the direction close to the compensation block to be in contact with the compensation block and presses and fixes the compensation block;

and fourthly, when the distance between the first electrode plate and the second electrode plate needs to be adjusted, the adjusting motor is controlled to be started to drive the second threaded shaft to rotate, and the second threaded shaft can drive the movable rod to move up and down after rotating so as to adjust the distance between the first electrode plate and the second electrode plate, so that the inclination angle of the movable plate is changed.

The invention has the beneficial effects that:

firstly, the invention can detect the pose of the moving plate in a plane when the numerical control moving platform works, the actual moving distance of the moving plate is obtained by utilizing the miniature photoelectric sensor, and then the actual moving distance is compared with the theoretical moving distance to judge whether the error occurs during the moving, if the error occurs, the driving motor can be started to compensate the deviation distance, so that the moving precision is ensured, and whether the moving plate is inclined is detected by utilizing the second electrode plate arranged on the bottom surface of the moving plate and the first motor plate arranged on the top surface of the base, if the moving plate is inclined, the moving plate can be automatically adjusted to be horizontal, so that the situation that the error occurs during the moving of the ball screw due to abrasion is avoided, the detection and maintenance are carried out without stopping production;

and secondly, the adjusting motor can drive the moving rod to move up and down so as to adjust the distance between the first electrode plate and the second electrode plate, so that the allowed inclination angle of the moving plate is changed, the allowed maximum inclination angle of the moving plate is adjusted according to different working environments, and the pose detection and adjustment work of the moving plate is more flexible.

Drawings

The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention; it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments, and all other embodiments obtained by those skilled in the art without any inventive work are within the scope of the present invention.

FIG. 1 is a schematic structural diagram of a precision adjustment scheme of a numerically controlled mobile platform according to the present invention;

FIG. 2 is a schematic diagram of a structure at a limiting plate in FIG. 1;

FIG. 3 is a schematic view of the fixture of FIG. 2;

FIG. 4 is a schematic diagram of the structure of the detecting device in FIG. 1;

FIG. 5 is a schematic top view of the rotary chamber of FIG. 2;

FIG. 6 is a schematic left side view of the first moving slot of FIG. 2;

fig. 7 is a schematic view of the structure at a-a in fig. 6.

Detailed Description

In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "top/bottom", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

Referring to fig. 1 to 7, a precision adjustment scheme for a numerically controlled mobile platform according to an embodiment of the present invention includes two numerically controlled slide rails 101, where the numerically controlled slide rails 101 include a base 15, a driving motor 18 is fixed on the base 15, a first fixing block 60 is fixed on the base 15, a position limiting plate 23 symmetrical with respect to the driving motor 18 is fixed on the base 15, a ball screw 13 is installed between the driving motor 18 and the first fixing block 60, a moving plate 12 is fixedly connected to the ball screw 13, two sets of sliding devices 102 symmetrical with respect to the driving motor 18 are fixed on a bottom surface of the moving plate 12, the sliding devices 102 include support arms 19 symmetrical with respect to the position limiting plate 23, first sliding grooves 24 symmetrical with respect to the position are formed on a side surface of the support arm 23, sliding blocks 27 extending into the first sliding grooves 24 are fixed on a side surface of the support arm 19 close to the position limiting plate 23, the upper and lower side surfaces of the sliding block 27 are provided with symmetrical rotating grooves 26, the rotating grooves 26 are rotatably connected with rollers 25 which are in rolling connection with the upper and lower side walls of the first sliding groove 24, the limiting plate 23 below the first sliding groove 24 is provided with a first moving groove 35, two symmetrical first threaded shafts 33 are rotatably connected between the upper and lower walls of the first moving groove 35, the first threaded shafts 33 are fixedly provided with belt wheels 32, the belt wheels 32 are driven by a belt 31, the belt wheels 32 above the belt wheels 32 are in threaded connection with a moving block 30, the top surface of the moving block 30 is in pressing connection with two compensating blocks 28 which extend into the first sliding groove 24, the top surface of the compensating block 28 is provided with a guide groove 29 with an upward opening, the bottom wall of the first moving groove 35 is fixedly provided with a stepping motor 58, the top surface of the stepping motor 58 is fixedly provided with an upward extending first rotating shaft 50, set firmly a runner 57 on first axis of rotation 50, one of them a ratchet 34 has set firmly on the first threaded spindle 33, install on the runner 57 with a ratchet 34 complex pawl 59, be equipped with the compensation arrangement 103 that can compensate moving distance in the limiting plate 23, first shifting chute 35 top be equipped with can with the fixed fixing device 104 of compensation piece 28, the limiting plate 23 is inboard be equipped with on the top surface of base 15 and can detect whether movable plate 12 takes place to incline and about driving motor 18 symmetry's detection device 105.

Preferably, compensation arrangement 103 including set up in scanning chamber 22 in the limiting plate 23 roof, be equipped with photosensitive board 61 in the scanning chamber 22, photosensitive board 61 top surface is equipped with the miniature photoelectric sensor of closely arranging, between the support arm 19 movable plate 12 bottom surface has set firmly and extends to in the scanning chamber 22 and with scanning chamber 22 sliding connection's slide bar 20, slide bar 20 bottom has set firmly light generator 21, can detect the displacement of movable plate 12.

Preferably, the fixing device 104 includes a rotating cavity 36, the first rotating shaft 50 extends upwards into the rotating cavity 36, a first bevel gear 49 is fixedly arranged on the first rotating shaft 50 in the rotating cavity 36, a supporting block 53 which is symmetrical with respect to the first rotating shaft 50 is fixedly arranged on the bottom wall of the rotating cavity 36, the supporting block 53 is rotatably connected with a second rotating shaft 52, a second bevel gear 51 which is meshed with the first bevel gear 49 is fixedly arranged at the tail end of the second rotating shaft 52, a third bevel gear 54 is fixedly arranged at the other end of the second rotating shaft 52, a third rotating shaft 56 which is symmetrical with respect to the first rotating shaft 50 is rotatably connected to the side wall of the rotating cavity 36, a fourth bevel gear 55 which is meshed with the third bevel gear 54 is fixedly arranged at the tail end of the third rotating shaft 56, a second rotating wheel 41 which has the same structural characteristics as the first rotating wheel 57 is fixedly arranged on the third rotating shaft 56, a second sliding groove 38 is arranged between the rotating cavity 36 and the compensating block 28, a reciprocating screw rod 39 extending into the second sliding groove 38 is rotationally connected to the side wall of the rotating cavity 36 below the third rotating shaft 56, a pressing block 37 which is slidably connected with the second sliding groove 38 and can be abutted to the compensating block 28 is mounted on the reciprocating screw rod 39, and a second ratchet wheel 40 matched with the second rotating wheel 41 is fixedly arranged at the tail end of the reciprocating screw rod 39 in the rotating cavity 36.

Preferably, the detection device 105 includes a second fixed block 45 fixedly arranged on the top surface of the base 15, a second movable groove 47 with an upward opening is arranged in the second fixed block 45, an adjusting motor 48 is arranged on the bottom wall of the second movable groove 47, a second threaded shaft 46 extending into the second movable groove 47 is arranged on the top surface of the adjusting motor 48, a movable rod 44 slidably connected with the second movable groove 47 is connected to the second threaded shaft 46 through a thread, a first electrode plate 43 is arranged on the top end of the movable rod 44, a second electrode plate 42 corresponding to the first electrode plate 43 is fixedly arranged on the bottom surface of the movable plate 12, and whether the movable plate 12 inclines or not can be detected.

Preferably, the top surface of the moving plate 12 of the second numerical control slide rail 101 is fixedly provided with an installation platform 11.

firstly, during installation, a base 15 of a second numerical control slide rail 101 is installed on the top surface of a moving plate 12 of a first numerical control slide rail 101, an included angle between the two numerical control slide rails 101 is ninety degrees, a driving motor 18 of the lower numerical control slide rail 101 is started to control a ball screw 13 to move left and right, the ball screw 13 drives the upper numerical control slide rail 101 to move left and right through the moving plate 12, the driving motor 18 of the upper numerical control slide rail 101 is started to drive the ball screw 13 to move front and back, the ball screw 13 drives an installation platform 11 to move front and back through the moving plate 12, and the installation platform 11 can move freely in the place in the horizontal plane through the matched movement of the two numerical;

secondly, the moving plate 12 drives the arm 19 and the sliding block 27 to move in the first sliding groove 24 while the moving plate 12 is driven by the ball screw 13 to move, and the sliding rod 20 also drives the light generator 21 to move in the scanning cavity 22 along with the movement of the moving plate 12, the light generator 21 emits light which irradiates on the photosensitive plate 61 to enable the micro photoelectric sensor at the point to emit an electric signal and inputs the signal into the computer, the computer can know the position of the light generator 21 and the moving distance of the light generator 21 at the moment through the micro photoelectric sensor for transmitting the signal, the distance is the actual moving distance of the moving plate 12, and is compared with the theoretically moving distance of the moving plate 12, if the distance is the same, the movement is normal without error, if the error occurs, the computer controls the driving motor 18 to start again to compensate the offset distance, ensuring the precision in moving;

third, when the moving plate 12 moves in a horizontal state, the second electrode sheet 42 is always separated from the first electrode sheet 43, and if the moving plate 12 tilts due to abrasion, the second electrode sheet 42 in the tilting direction contacts with the first electrode sheet 43 to control the start of the stepping motor 58 in the direction, after the stepping motor 58 is started, the first rotating shaft 50 drives the first bevel gear 49 to rotate, the first bevel gear 49 drives the second rotating shaft 52 to rotate through the second bevel gear 51, the second rotating shaft 52 drives the fourth bevel gear 55 to rotate through the third bevel gear 54, the fourth bevel gear 55 drives the second rotating wheel 41 to rotate through the third rotating shaft 56, the second rotating wheel 41 drives the reciprocating lead screw 39 to rotate through the second ratchet 40, after the reciprocating lead screw 39 rotates, the pressing block 37 is driven to move into the second sliding groove 38, so that the pressing block 37 is separated from the compensation block 28, at this time, the first rotating shaft 50 cannot drive the first ratchet wheel 34 to rotate through the first rotating wheel 57, when the pressing block 37 is disengaged from the compensation block 28, the stepping motor 58 rotates in the reverse direction, and the first rotating wheel 57 is driven to rotate through the first rotating shaft 50, the first rotating wheel 57 drives the first threaded shaft 33 to rotate through the first ratchet wheel 34, the first threaded shaft 33 drives the belt wheel 32 to rotate, the belt wheel 32 drives the other belt 31 to rotate through the belt 31, the belt wheel 32 drives the other first threaded shaft 33 to rotate, the first threaded shaft 33 rotates and then drives the moving block 30 to move upwards to jack up the compensation block 28, at this time, the second rotating wheel 41 cannot drive the second ratchet wheel 40 to rotate, after the compensation block 28 is jacked up, the roller 25 is jacked up to restore the moving plate 12 to the horizontal state, when the second electrode plate 42 is disengaged from the first electrode plate 43 after the horizontal state is restored, at this time, the stepping motor 58 rotates reversely again to drive the reciprocating screw 39 to rotate, after the reciprocating screw 39 rotates, the pressing block 37 is driven to move towards the direction close to the compensation block 28 to be contacted with the compensation block 28, and the compensation block 28 is pressed and fixed;

fourthly, when the distance between the first electrode plate 43 and the second electrode plate 42 needs to be adjusted, the adjusting motor 48 is controlled to be started to drive the second threaded shaft 46 to rotate, and the second threaded shaft 46 can drive the moving rod 44 to move up and down after rotating so as to adjust the distance between the first electrode plate 43 and the second electrode plate 42, so that the allowed inclination angle of the moving plate 12 is changed.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.

Claims

1. The utility model provides a numerical control moving platform precision regulation scheme, includes two numerical control slide rails, its characterized in that: the numerical control slide rail comprises a base, a driving motor is fixedly arranged on the base, a first fixed block is fixedly arranged on the base, a limiting plate which is symmetrical about the position of the driving motor is fixedly arranged on the base, a ball screw is arranged between the driving motor and the first fixed block, a movable plate is fixedly connected onto the ball screw, two groups of sliding devices which are symmetrical about the position of the driving motor are fixedly arranged on the bottom surface of the movable plate, each sliding device comprises a support arm which is symmetrical about the position of the limiting plate, first sliding grooves which are symmetrical about the position are arranged on the side surfaces of the limiting plate, sliding blocks which extend into the first sliding grooves are fixedly arranged on the side surfaces of the support arms which are close to the limiting plate, rotating grooves which are symmetrical about the position are arranged in the upper side surface and the lower side surface of each sliding block, and idler wheels which are, a first moving groove is arranged in the limiting plate below the first sliding groove, two first threaded shafts with symmetrical positions are rotatably connected between the upper wall and the lower wall of the first moving groove, belt wheels are fixedly arranged on the first threaded shafts, the belt wheels are driven by a belt, a moving block is connected on the belt wheels above the belt wheels in a threaded manner, the top surface of the moving block is connected with two compensation blocks extending into the first sliding groove in a pressing manner, a guide groove with an upward opening is arranged in the top surface of each compensation block, a stepping motor is fixedly arranged on the bottom wall of the first moving groove, a first rotating shaft extending upwards is fixedly arranged on the top surface of the stepping motor, a first rotating wheel is fixedly arranged on the first rotating shaft, a first ratchet wheel is fixedly arranged on one of the first threaded shafts, a pawl matched with the first ratchet wheel is arranged on the first rotating wheel, and a compensation device capable of compensating for the moving distance is arranged in the limiting plate, the compensation block fixing device is characterized in that a fixing device capable of fixing the compensation block is arranged above the first moving groove, and a detection device capable of detecting whether the moving plate inclines or not and symmetrically arranged on the position of the driving motor is arranged on the top surface of the base on the inner side of the limiting plate.

2. The accuracy adjustment scheme for the numerical control mobile platform according to claim 1, characterized in that: compensation arrangement including set up in scanning chamber in the limiting plate roof, the scanning intracavity is equipped with photosensitive board, the photosensitive board top surface is equipped with the miniature photoelectric sensor who closely arranges, between the support arm the movable plate bottom surface set firmly extend to the scanning intracavity and with scanning chamber sliding connection's slide bar, the slide bar bottom has set firmly light generator.

3. The accuracy adjustment scheme for the numerical control mobile platform according to claim 2, characterized in that: the fixing device comprises a rotating cavity, a first rotating shaft extends upwards into the rotating cavity, a first bevel gear is fixedly arranged on the first rotating shaft in the rotating cavity, supporting blocks symmetrical to the first rotating shaft in position are fixedly arranged on the bottom wall of the rotating cavity, the supporting blocks are rotatably connected with a second rotating shaft, a second bevel gear meshed with the first bevel gear is fixedly arranged at the tail end of the second rotating shaft, a third bevel gear is fixedly arranged at the other end of the second rotating shaft, a third rotating shaft symmetrical in position is rotatably connected to the side wall of the rotating cavity, a fourth bevel gear meshed with the third bevel gear is fixedly arranged at the tail end of the third rotating shaft, a second rotating wheel identical to the first rotating wheel in structural characteristic is fixedly arranged on the third rotating shaft, a second sliding groove is formed between the rotating cavity and the compensating block, and the side wall of the rotating cavity below the third rotating shaft is rotatably connected with a second sliding groove extending into the second sliding groove The reciprocating screw rod is provided with a pressing block which is connected with the second sliding groove in a sliding mode and can be abutted to the compensation block, and the tail end of the reciprocating screw rod in the rotating cavity is fixedly provided with a second ratchet wheel matched with the second rotating wheel.

4. The accuracy adjustment scheme for the numerical control mobile platform according to claim 3, characterized in that: the detection device comprises a second fixed block fixedly arranged on the top surface of the base, a second moving groove with an upward opening is formed in the second fixed block, an adjusting motor is installed on the bottom wall of the second moving groove, the top surface of the adjusting motor is provided with a second threaded shaft extending into the second moving groove, the second threaded shaft is in threaded connection with a moving rod connected with the second moving groove in a sliding mode, a first electrode plate is installed at the top end of the moving rod, and the bottom surface of the moving plate is fixedly provided with a second electrode plate corresponding to the position of the first electrode plate.

5. The accuracy adjustment scheme for the numerical control mobile platform according to claim 4, characterized in that: and the top surface of the movable plate of the second numerical control slide rail is fixedly provided with an installation platform.

6. The adjusting method of the precision adjusting scheme of the numerical control mobile platform as claimed in claim 5: