CN210154455U

CN210154455U - Intelligent height caliper calibrating instrument

Info

Publication number: CN210154455U
Application number: CN201920428399.1U
Authority: CN
Inventors: 邓玉湖; 曾庆威; 谢清群; 黄鹏程; 杨永达; 黄双茂; 李丽霞
Original assignee: Xiamen Tong Da Electronic Co Ltd
Current assignee: Xiamen Tong Da Electronic Co Ltd
Priority date: 2019-04-01
Filing date: 2019-04-01
Publication date: 2020-03-17
Anticipated expiration: 2029-04-01

Abstract

The utility model discloses an intelligent calibrator for height calipers, which comprises a frame, a lower computer, a bedplate, a flat plate, a digital display dial indicator, height calipers, a screwing mechanism, a first quick handle, an intelligent camera, a first connecting plate, a lifting component, a second connecting plate, a second quick handle, a third connecting plate, a laser measuring system, a servo controller, an electromagnetic valve group, a bottom plate, an upper computer, a sensor and a second magnet seat; the upper computer is provided with intelligent verification software and is in communication connection with the lower computer; real-time data of the laser head, data acquired by the intelligent camera and data acquired by the digital display dial indicator are uploaded to the upper computer by the lower computer, and verification original records are generated and stored in a document form after data processing of intelligent verification software. The utility model discloses an adopt laser measurement system to replace the gage block, have that the precision is high, intelligent degree is high, work efficiency is high, the characteristics that all height slide caliper rule examination requirements were satisfied in the full coverage.

Description

Intelligent height caliper calibrating instrument

Technical Field

The utility model relates to a calibrating apparatus of measuring apparatus, in particular to height slide caliper rule intelligence calibrating apparatus.

Background

The height caliper is also called as a height gauge, is a measuring tool for measuring the height position of the surface of a workpiece and precisely marking, and can be divided into a vernier height caliper, a height caliper with a meter and a digital display height caliper according to the structural form, and the vernier height caliper, the height caliper with the meter and the digital display height caliper mainly comprise a base, a ruler body, a ruler frame, a marking measuring claw, a locking screw, a reading device and the like. The height caliper resolution or division values used are 0.01mm, 0.02mm, 0.05mm, 0.10 mm.

The height caliper is widely applied to production and processing enterprises, is a necessary tool for checking and marking of mechanical processing and product inspection, and whether the height caliper is accurate or not is directly related to the quality of a product, and even influences the economic benefit of the enterprise. The current technical basis adopted by the national government metering department and the third-party calibration institution for calibrating the height caliper for the first calibration, the subsequent calibration and the inspection in use is JJG31-2011 height caliper calibration regulation.

The traditional calibration method of the height caliper uses a measuring block group as a main standard device, when the indication error of a certain point of the height caliper needs to be calibrated, a measuring jaw measuring surface of the height caliper is manually contacted with the surface of a measuring block and can normally slide, the indication value of the height caliper is manually read, a tool microscope is used for measuring when necessary, the difference between the reading value and the actual size of the measuring block is determined as the indication error of the point, the measurement is respectively carried out under the condition that a ruler frame is fastened and loosened, 3 measuring points are not less than uniformly distributed for the height caliper with the upper measuring limit within 300mm, and 6 measuring points are not less than uniformly distributed for the height caliper with the upper measuring limit greater than 300 mm.

Patent CN 208443282U discloses a height caliper calibration device, which includes a base plate, a second clamping mechanism and a height-fixing standard; the second clamping mechanism comprises a fixed clamping plate and a plurality of movable clamping plates matched with the fixed clamping plate; the height-fixed standard component is arranged on the second clamping mechanism and can be clamped and kept vertical by the fixed clamping plate and the movable clamping plate; each movable clamping plate correspondingly clamps one of the height-fixing standard parts. According to the height caliper calibrating device provided by the utility model, although the fixed clamping plate and the movable clamping plate can clamp and fix the height-fixing standard component, the height-fixing standard component is kept vertical, the problem that the result is inaccurate due to inclination of the height-fixing standard component is prevented, and the accuracy of the calibrating result is ensured to a certain extent; however, the calibration process requires manual operation, automatic measurement cannot be realized, and the device needs to be clamped by a plurality of height-fixed standard components (measuring block sets) and corresponding fixed clamping plates, so that the structure is complex.

To sum up, the existing height caliper verification has many disadvantages: firstly, the operation is completed by manual operation, the workload is large, the efficiency is low, and the human error is large; secondly, for the calibration of the caliper for covering all measuring ranges and heights, the measuring blocks of corresponding measuring points need to be matched, so that the measuring blocks are large in number and inconvenient to manage by a standard device, and if the measuring blocks are lapped and assembled, the measuring blocks with large measuring ranges are heavy and are not beneficial to lapping, and lapping errors exist; and thirdly, because manual operation is adopted, the intelligent and paperless implementation of modern verification is not facilitated.

Disclosure of Invention

The utility model aims to prior art's is not enough, the utility model aims to provide a simple structure, convenient operation are high-efficient, the precision is high and can realize automatic measure and the automatic height caliper rule intelligent verification appearance that generates the original record of electron.

In order to achieve the purpose, the utility model relates to an intelligent calibrator for height calipers, which comprises a frame, a lower computer, a bedplate, a flat plate, a digital display dial indicator, height calipers, a screwing mechanism, a first quick handle, an intelligent camera, a first connecting plate, a lifting component, a second connecting plate, a second quick handle, a third connecting plate, a reflector, a connecting shaft, a connecting block, an interference mirror, a laser head, a cushion block, a first magnet seat, an environmental unit, a servo controller, an electromagnetic valve group, a bottom plate, an upper computer, a sensor and a second magnet seat; the machine frame is provided with the bedplate and the bottom plate, and the lifting assembly is vertically arranged behind the machine frame; the flat plate, the digital display dial indicator, the cushion block, the first magnet seat, the environmental unit, the upper computer and the sensor are respectively arranged on the bedplate; the base of the height caliper to be detected is placed on the flat plate; the lower computer, the servo controller and the electromagnetic valve group are fixedly arranged on the bottom plate respectively; a first connecting plate and a second connecting plate are fixedly arranged on a sliding block of the lifting assembly, the first connecting plate is provided with a groove and a threaded hole, a second magnet seat with a switch is arranged on the groove and is fixed by screws, and after the switch of the second magnet seat is turned on, a plane of the magnet seat has suction to suck a ruler frame of the height caliper, so that the sliding block is lifted to drive the ruler frame of the height caliper to lift; one side surface of the connecting plate is also provided with a quick locking and screwing mechanism through two quick handles I, the screwing mechanism can be adjusted up and down on the connecting plate I, and a rotating claw of the screwing mechanism is matched with a locking screw of the height caliper, so that the locking screw of the height caliper is automatically locked and loosened; one end of the connecting plate II is installed on the sliding block, the other end of the connecting plate II is installed with an intelligent camera, the camera is over against a reading device of the height caliper so as to automatically read the value of the height caliper, the collected actual reading value of the height caliper is compared and measured with the standard value of the laser head, and the obtained reading difference is the indication error of the height caliper; a groove is formed in the connecting plate in a three-opening mode, a scribing measuring jaw measuring surface of the height caliper is in contact with the lower plane of the groove and is quickly fixed by a quick handle II, and reflectors are arranged on three sides of the connecting plate; a second magnet seat with a switch is arranged on the bedplate right below the reflector, and the second magnet seat can be attracted on the bedplate by magnetic force after the switch of the second magnet seat is opened; a connecting shaft is locked and installed above the second magnet seat, the connecting shaft is movably provided with a connecting block, the connecting block can be adjusted in height and fixed on the connecting block, an interference mirror is fixedly installed on the connecting block, and a light outlet hole of the interference mirror is coaxial with a light receiving hole of the reflector; a laser head is arranged on the cushion block, and a light outlet of the laser head is aligned with a light receiving hole of the interference mirror; the environment unit is connected with the sensor, and the acquired temperature, humidity and pressure are transmitted to the laser head for environment compensation; the electromagnetic valve group controls the rotation motion and the linear motion of the screwing mechanism; the lower computer is connected with the servo controller, the intelligent camera and the electromagnetic valve bank and is in communication connection with the upper computer, and the lifting of the lifting component, the real-time data acquisition of the intelligent camera and the action of the electromagnetic valve bank are automatically controlled according to the requirement of a calibration method in a JJG31-2011 height caliper calibration regulation; the upper computer is provided with intelligent verification software, real-time data of the laser head after environmental compensation is directly transmitted to the upper computer, data acquired by the intelligent camera and data acquired by the digital display dial indicator are transmitted to the upper computer through the lower computer, and all data are processed by the intelligent verification software to generate verification original records and stored in a document form.

The frame is formed by assembling aluminum alloy sections and serves as a supporting frame of the calibrating instrument.

The accuracy grade of the flat plate is more than or equal to grade 1, and the accuracy is higher when the grade is higher; the external dimension of the device is one of (400 multiplied by 250) mm or (250 multiplied by 250) mm.

The division value of the digital display lever dial indicator is less than or equal to 0.002mm, and the digital display lever dial indicator is used for calibrating the parallelism between the measuring jaw measuring surface of the height caliper and the base working surface.

The lifting travel of the lifting component is larger than or equal to the maximum measuring range of the height caliper.

The laser head is a double-frequency laser head and has an environment compensation function, the laser head, an interference mirror, a reflecting mirror, an environment unit and a sensor form a laser interferometer measuring system, the real-time height of a marking measuring claw of the height caliper can be measured, the measuring range of the system is more than or equal to 2m, the linear error is less than or equal to +/-0.5L mu m, wherein L is the measuring height and m is taken as a unit; the environmental unit and the sensor are capable of detecting temperature, humidity and pressure in the environment.

The second connecting plate is Z-shaped, and the mounting hole of the second connecting plate is a long waist-shaped hole which can be adjusted up and down.

The screwing mechanism realizes rotation action and linear action through a power source and is used for automatically locking and loosening a locking screw of the height caliper.

The third connecting plate is provided with a groove, the scribing measuring jaw measuring surface of the height caliper is in contact with a plane of the groove, and the third connecting plate is quickly fixed by the second quick handle, so that the scribing measuring jaw of the height caliper is locked and loosened.

The intelligent camera is used for collecting the reading of the detected height caliper and transmitting the data to the intelligent verification software, and the position of the intelligent camera can be adjusted in the vertical direction and the horizontal direction so as to adjust the definition of the intelligent camera.

The intelligent verification software can be purchased from the market and belongs to the prior art; the unit name of the provided software is Xiamen general survey electronic company, the unit address is Central Meidi No. 5, 2101 room of Sterculia Sidereli No. 6 in Huli area of Xiamen city, the software name is height ruler intelligent verification software, the model is Gdctest-3000, the time of completing development and marketing is 11 months in 2018; the verification software can automatically process data and automatically generate verification original records.

The utility model relates to a height slide caliper rule intelligence examination appearance replaces the gauge block group through using higher etalon laser measuring system, and the precision is high, and convenient operation is high-efficient, and intelligence is practical to can realize the automatic appearance of examining and determine of height slide caliper rule of automatic measurement automatic generation electron original record, have following technical characterstic and beneficial effect:

1. the calibrating instrument realizes intelligent calibration of the height caliper, improves the calibration efficiency, reduces the working strength and reduces the human error;

2. the calibration instrument replaces the traditional measuring block group with more quantity by a laser interferometer measuring system, has the characteristic of high precision and is convenient for the management of a standard device;

3. the calibration software of the calibration instrument realizes automatic data processing and automatic generation of calibration original records, and realizes paperless and intelligent height caliper calibration;

4. the height caliper calibrating instrument can meet the requirements of JJG31-2011 height caliper calibrating regulations, and can be used for height caliper calibration covering various structural forms and all measuring ranges.

Drawings

Fig. 1 is the utility model relates to a height slide caliper rule intelligence examination appearance isometric three-dimensional structure schematic diagram.

Fig. 2 is the utility model relates to a system control block diagram of height slide caliper rule intelligence examination appearance.

Fig. 3 is a front view of fig. 1.

Fig. 4 is a top view of fig. 1.

Fig. 5 is a schematic three-dimensional structure of the gantry of fig. 1.

Fig. 6 is a schematic three-dimensional structure diagram of the lifting mechanism in fig. 1.

Fig. 7 is a schematic three-dimensional structure diagram of the first connecting plate in fig. 1.

Reference numerals: the device comprises a rack 1, a lower computer 2, a bedplate 3, a flat plate 4, a digital display dial indicator 5, a height caliper 6, a screwing mechanism 7, a first quick handle 8, an intelligent camera 9, a first connecting plate 10, a lifting assembly 11, a sliding block bottom plate 11-1, a ball screw 11-2, a sliding block 11-3, a linear guide rail 11-4, a motor mounting block 11-5, a coupler 11-6, a servo motor 11-7, a second connecting plate 12, a second quick handle 13, a third connecting plate 14, a reflecting mirror 15, a connecting shaft 16, a connecting block 17, an interference mirror 18, a laser head 19, a cushion block 20, a first magnet seat 21, an environment unit 22, a servo controller 23, an electromagnetic valve group 24, a bottom plate 25, an upper computer 26, a sensor 27 and a second magnet seat 28.

Detailed Description

The height caliper intelligent calibrating instrument of the present invention is further described in detail with reference to the accompanying drawings and the detailed description.

As shown in fig. 1-7, the utility model relates to a height slide caliper rule intelligence examination appearance includes frame 1, next machine 2, platen 3, flat board 4, digital display lever micrometer 5, height slide caliper rule 6, screw mechanism 7, quick handle 8, intelligent camera 9, connecting plate 10, lifting unit 11, connecting plate two 12, quick handle two 13, connecting plate three 14, speculum 15, connecting axle 16, connecting block 17, interference mirror 18, laser head 19, cushion 20, magnet seat 21, environmental unit 22, servo controller 23, electromagnetism valves 24, bottom plate 25, host computer 26, sensor 27 and magnet seat two 28; the calibrating instrument is characterized in that the rack 1 is mainly formed by assembling aluminum alloy sections and is divided into two layers as a supporting frame of the calibrating instrument, a bedplate 3 is arranged on the upper layer, a bottom plate 25 is arranged on the lower layer, and a lifting assembly 11 is vertically arranged behind the rack 1; the bedplate 3 is respectively provided with a flat plate 4, a digital display dial indicator 5, a cushion block 20, a magnet seat I21, an environment unit 22, an upper computer 26 and a sensor 27; the base of the height caliper 6 to be detected is placed on the flat plate 4, the accuracy grade of the flat plate is more than or equal to grade 1, the accuracy is higher when the grade is higher, and the external dimension of the flat plate is one of (400 multiplied by 250) mm or (250 multiplied by 250) mm; the division value of the digital display lever dial indicator 5 is better than 0.002mm and is used for calibrating the parallelism between the measuring jaw measuring surface of the height caliper 6 and the base working surface; the bottom plate 25 is fixedly provided with a lower computer 2, a servo controller 23 and an electromagnetic valve group 24 respectively; the lifting assembly 11 mainly comprises a slider bottom plate 11-1, a ball screw 11-2, a slider 11-3, linear guide rails 11-4, a motor mounting block 11-5, a coupler 11-6 and a servo motor 11-7, wherein the ball screw 11-2, the motor mounting block 11-5 and the two linear guide rails 11-4 are fixedly mounted on the slider bottom plate 11-1; the motor mounting block 11-5 is used for mounting a servo motor 11-7, and an output shaft of the motor is connected with the ball screw 11-2 through a coupler 11-6; the two linear guide rails 11-4 are fixedly connected by a sliding block 11-3; the servo motor 11-7 is in communication connection through a servo controller 23, and the lifting component 11 is driven by the servo motor 11-7 to realize the lifting of the sliding block 11-3 under the forward and reverse rotation; a first connecting plate 10 and a second connecting plate 12 are fixedly arranged on the sliding block 11-3, wherein a mounting hole on the second connecting plate 12 is a long waist-shaped hole and has a certain up-down adjusting space; the first connecting plate 10 is provided with a groove and a threaded hole, a second magnet seat 28 with a switch is mounted on the groove and fixed by screws, a plane of the magnet seat has certain suction after the second magnet seat 28 is switched on, and can suck the ruler frame of the height caliper 6, so that the ruler frame of the height caliper 6 is driven to lift by lifting the sliding block 11-3; the lifting stroke of the lifting component is more than or equal to the maximum measuring range of the height caliper; the side face of the first connecting plate 10 is also rapidly locked and screwed by a screwing mechanism 7 through two rapid handles I8, the screwing mechanism 7 has a certain vertical adjustment range on the first connecting plate 10, the screwing mechanism 7 mainly uses an air source as power and can also adopt other power sources, the air source is used as power in the embodiment to realize rotation action and linear action, a rotating claw of the screwing mechanism 7 is connected with a locking screw of the height caliper 6, and therefore automatic locking and loosening of the locking screw of the height caliper 6 are realized; the second connecting plate 13 is Z-shaped, one end of the second connecting plate is arranged on the sliding block 11-3, the other end of the second connecting plate is fixedly provided with the intelligent camera 9, the camera faces a reading device of the height caliper 6, so that the reading value of the height caliper 6 can be automatically read, the position of the intelligent camera can be adjusted in the vertical direction and the horizontal direction to adjust the definition of the intelligent camera, the intelligent camera 9 acquires the actual reading value of the height caliper 6 and compares the actual reading value with the standard value of the laser head for measurement, and the reading difference is the indication error of the height caliper; a third connecting plate 14 is provided with a slot, the scribing measuring jaw measuring surface of the height caliper 6 is in contact with the lower plane of the slot and is quickly fixed by a second quick handle 13, so that the scribing measuring jaw of the height caliper is locked and released; a reflector 15 is fixedly arranged on the side edge of the third connecting plate 14; a second magnet seat 28 with a switch is arranged on the bedplate 3 right below the reflector 15, and the magnet seat 28 can be attracted on the bedplate 3 by magnetic force after the switch is opened; a connecting shaft 16 is locked and installed above the second magnet seat 28, a connecting block 17 is movably installed on the connecting shaft 16, the connecting block 17 can be adjusted in height and fixed on the connecting block 17, an interference mirror 18 is fixedly installed on the connecting block 17, and a light emitting hole of the interference mirror 18 is coaxial with a light receiving hole of the reflector 15; a laser head 19 is arranged on the cushion block 20, and a light outlet of the laser head is aligned with a light receiving hole of the interference mirror 18; the environment unit 22 is connected with the sensor 27, and the collected environment parameters such as temperature, humidity and pressure are transmitted to the laser head 19; the laser head 19 has an environmental compensation function; the laser head 19, the interference mirror 18, the reflecting mirror 15, the environment unit 22 and the sensor 27 form a laser interferometer measuring system which can measure the real-time height of the marking measuring claw of the height caliper, the measuring range of the system is more than or equal to 2m, the linear error is less than or equal to +/-0.5L mu m, wherein L is the measuring height and m is taken as a unit; the electromagnetic valve group 24 controls the rotation motion and the linear motion of the screwing mechanism 7; the lower computer 2 is connected with a servo controller 23, an intelligent camera 9 and an electromagnetic valve group 24, and automatically controls the lifting of the lifting component 11, the real-time data acquisition of the intelligent camera 9 and the action of the electromagnetic valve group 24 according to the requirement of a detection method in a JJG31-2011 height caliper detection regulation; the upper computer 24 is provided with intelligent verification software, the upper computer 24 is in communication connection with the lower computer 2, data collected by the laser head 19, data collected by the intelligent camera 9 and data collected by the digital display dial indicator 5 are uploaded to the upper computer 24 through the lower computer 2, and verification original records are generated after data processing of the intelligent verification software and stored in a document form.

The calibrating instrument adopts the laser measuring system to replace a measuring block, and has the characteristics of high precision, high intelligent degree, high working efficiency and full coverage meeting the calibrating requirements of all height calipers.

The utility model relates to a method and operation process that height slide caliper rule was specifically examined and determine to height slide caliper rule of height slide caliper rule intelligent verification appearance as follows:

1. and (3) switching on a power supply of the calibrating instrument, opening intelligent calibrating software, placing the height caliper to be detected on a flat plate for isothermal temperature, wherein the time for balancing the temperature meets the requirements of corresponding terms of the JJG31-2011 height caliper calibrating rule. And connecting an electronic wire of the sensor to an environment unit, starting a laser head to heat the sensor and meeting the corresponding heat engine time requirement.

2. Inputting relevant detected information and selecting verification items on intelligent verification software, wherein the relevant detected information and the selected verification items comprise information of a unit to be checked, information of a detected instrument, selection of a repeatability measuring point and an indication error measuring point.

3. And (3) verifying the items of appearance, interaction of each part, relative position of each part, surface roughness and flatness of the detected height caliper according to the corresponding requirements of JJG31-2011 height caliper verification regulations, and inputting verification results into intelligent verification software.

4. According to the requirements of JJG31-2011 height caliper calibration regulations, the base of the height caliper to be detected is moved, the parallelism between the measuring surface of the measuring claw and the working surface of the base is automatically acquired by a digital display dial indicator, the maximum value and the minimum value of the reading of the digital display dial indicator are taken as the parallelism, and the calibration result is automatically stored in intelligent calibration software.

5. Moving the base and the ruler frame of the height caliper to be detected, and starting a second switch of the magnet base to firmly suck the ruler frame of the height caliper; mounting a connecting plate III with a reflector on a scribing measuring jaw of the height caliper to enable a measuring jaw measuring surface of the height caliper to be in contact with a lower plane, and locking the connecting plate III with the reflector by using a quick handle II; adjusting the positions of the first magnet seat and the connecting block to enable the light outlet hole of the interference mirror and the light inlet hole of the reflector to be coaxial and then locking and fixing the first magnet seat and the connecting block; the rotating claw of the screwing mechanism is approximately coaxial with the locking screw of the height caliper by adjusting the position of the connecting plate, and the definition of the intelligent camera is adjusted. Clicking a 'start' button in intelligent verification software to start an automatic verification program, and automatically verifying key parameter indexes of the height caliper by the intelligent verification software, wherein the key parameter indexes comprise width and width difference, repeatability, zero value error and indication value error of a ruler mark required by a JJJG 31-2011 height caliper verification regulation.

6. After the intelligent verification software finishes automatic verification, clicking a 'save' button in the intelligent verification software, and automatically saving the verification result data in a document form.

7. And (5) the height caliper to be detected is dismounted, the power supply is turned off, and the detection is finished.

Claims

1. The utility model provides a height callipers intelligence examination appearance which characterized by: the intelligent camera comprises a rack, a lower computer, a platen, a flat plate, a digital display dial indicator, a height caliper, a screwing mechanism, a first quick handle, an intelligent camera, a first connecting plate, a lifting assembly, a second connecting plate, a second quick handle, a third connecting plate, a reflector, a connecting shaft, a connecting block, an interference mirror, a laser head, a cushion block, a first magnet seat, an environment unit, a servo controller, an electromagnetic valve group, a bottom plate, an upper computer, a sensor and a second magnet seat; the machine frame is provided with the bedplate and the bottom plate, and the lifting assembly is vertically arranged behind the machine frame; the flat plate, the digital display dial indicator, the cushion block, the first magnet seat, the environmental unit, the upper computer and the sensor are respectively arranged on the bedplate; the base of the height caliper to be detected is placed on the flat plate; the lower computer, the servo controller and the electromagnetic valve group are fixedly arranged on the bottom plate respectively; a first connecting plate and a second connecting plate are fixedly arranged on a sliding block of the lifting assembly, the first connecting plate is provided with a groove and a threaded hole, a second magnet seat with a switch is arranged on the groove and is fixed by screws, and after the switch of the second magnet seat is turned on, a plane of the magnet seat has suction to suck a ruler frame of the height caliper, so that the sliding block is lifted to drive the ruler frame of the height caliper to lift; one side surface of the connecting plate is also provided with a quick locking and screwing mechanism through two quick handles I, the screwing mechanism can be adjusted up and down on the connecting plate I, and a rotating claw of the screwing mechanism is matched with a locking screw of the height caliper, so that the locking screw of the height caliper is automatically locked and loosened; one end of the connecting plate II is installed on the sliding block, the other end of the connecting plate II is installed with an intelligent camera, and the intelligent camera is over against a reading device of the height caliper so as to automatically read the numerical value of the height caliper; a groove is formed in the connecting plate in a three-opening mode, a scribing measuring jaw measuring surface of the height caliper is in contact with the lower plane of the groove and is quickly fixed by a quick handle II, and reflectors are arranged on three sides of the connecting plate; a second magnet seat with a switch is arranged on the bedplate right below the reflector, and the second magnet seat can be attracted on the bedplate by magnetic force after the switch of the second magnet seat is opened; a connecting shaft is locked and installed above the second magnet seat, the connecting shaft is movably provided with a connecting block, the connecting block can be adjusted in height and fixed on the connecting block, an interference mirror is fixedly installed on the connecting block, and a light outlet hole of the interference mirror is coaxial with a light receiving hole of the reflector; a laser head is arranged on the cushion block, and a light outlet of the laser head is aligned with a light receiving hole of the interference mirror; the environment unit is connected with the sensor, and the acquired temperature, humidity and pressure are transmitted to the laser head for environment compensation; the electromagnetic valve group controls the rotation motion and the linear motion of the screwing mechanism; the lower computer is connected with the servo controller, the intelligent camera and the electromagnetic valve group and is in communication connection with the upper computer.

2. The intelligent height caliper verification instrument as claimed in claim 1, wherein: the frame is formed by assembling aluminum alloy sections and serves as a supporting frame of the calibrating instrument.

3. The intelligent height caliper verification instrument as claimed in claim 1, wherein: the accuracy grade of the flat plate is more than or equal to grade 1, and the accuracy is higher when the grade is higher; the external dimension of the device is 400mm multiplied by 250mm or 250mm multiplied by 250 mm.

4. The intelligent height caliper verification instrument as claimed in claim 1, wherein: the division value of the digital display lever dial indicator is less than or equal to 0.002mm, and the digital display lever dial indicator is used for calibrating the parallelism between the measuring jaw measuring surface of the height caliper and the base working surface.

5. The intelligent height caliper verification instrument as claimed in claim 1, wherein: the lifting travel of the lifting component is larger than or equal to the maximum measuring range of the height caliper.

6. The intelligent height caliper verification instrument as claimed in claim 1, wherein: the laser head is a double-frequency laser head and has an environment compensation function, the laser head, an interference mirror, a reflecting mirror, an environment unit and a sensor form a laser interferometer measuring system, the real-time height of a marking measuring claw of the height caliper can be measured, the measuring range of the system is more than or equal to 2m, the linear error is less than or equal to +/-0.5L mu m, wherein L is the measuring height and m is taken as a unit; the environmental unit and the sensor are capable of detecting temperature, humidity and pressure in the environment.

7. The intelligent height caliper verification instrument as claimed in claim 1, wherein: the second connecting plate is Z-shaped, and the mounting hole of the second connecting plate is a long waist-shaped hole which can be adjusted up and down.

8. The intelligent height caliper verification instrument as claimed in claim 1, wherein: the screwing mechanism realizes rotation action and linear action through a power source and is used for automatically locking and loosening a locking screw of the height caliper.

9. The intelligent height caliper verification instrument as claimed in claim 1, wherein: the third connecting plate is provided with a groove, the scribing measuring jaw measuring surface of the height caliper is in contact with a plane of the groove, and the third connecting plate is quickly fixed by the second quick handle, so that the scribing measuring jaw of the height caliper is locked and loosened.

10. The intelligent height caliper verification instrument as claimed in claim 1, wherein: the intelligent camera is used for collecting the reading of the detected height caliper and transmitting the data to the intelligent verification software, and the position of the intelligent camera can be adjusted in the vertical direction and the horizontal direction so as to adjust the definition of the intelligent camera.