Rapid calibration method and application of vertical axis deviation tester

Abstract

The invention provides a rapid calibration method of a vertical axis deviation tester, belongs to the field of measuring instrument detection, and can solve the technical problems that the calibration method of the vertical axis deviation tester is relatively high in calibration uncertainty, complex in operation steps, various in matters needing attention, very high in skill requirements on operators and difficult to complete by non-professionals. According to the rapid calibration method, the traceable cylindrical standard gauge block is used as a basic zero point, circular ring standard gauge blocks with different thicknesses, which are obtained by specially making the traceable standard gauge block, are assembled with the cylindrical standard gauge block, and the measurement position, the perpendicularity deviation, the dial gauge error and the repeatability error of the dial gauge are calibrated in sequence without dismounting the instrument, so that the calibration efficiency is improved. The calibration accuracy is improved, the operation is simple, carrying and storage are convenient, and full-scale measurement of different axial deviations can be realized.

Description

Technical Field

[0001] The invention belongs to the technical field of measuring instrument detection, and in particular relates to a rapid calibration method and application of a vertical axis deviation measuring instrument. Background Art

[0002] The vertical axis deviation measuring instrument has the characteristics of easy operation, high centering accuracy and high measurement accuracy. It is professionally used for the measurement of verticality deviation of various bottle containers in the food, cosmetics, pharmaceutical and other industries. If the verticality of the central axis of the packaging bottle does not meet the requirements, it will cause the sealing to fail during the capping in the later stage of the production line. In severe cases, it may cause damage to the capping, bottle body and even the capping device, so the accuracy of the measurement results is required to be high. The measuring principle of the vertical axis deviation measuring instrument is: fix the bottom of the bottle on the rotating disk of the horizontal plate, make the bottle mouth contact with the indicator of the measuring length, rotate 360° to read the maximum and minimum values, and 1 / 2 of the difference between the two is the vertical axis deviation value. The instrument utilizes the high concentricity of the three-jaw self-centering chuck, and cooperates with a set of high-degree-of-freedom brackets that can freely adjust the height and orientation to meet the verticality deviation detection of important parts such as the bottle body and bottle shoulder of various containers.

[0003] At present, there is no national standard to directly calibrate the vertical axis deviation measuring instrument. Usually, the indicator is calibrated according to the national standard "Indicator (Pointer Type, Digital Display) Calibration Procedure", and the verticality of the instrument is calibrated by using a cylindrical square according to the "JJF (Hebei) 153-2018 Vertical Axis Deviation Measuring Instrument Calibration Specification". Since the calibration process of the above two calibration methods is independent of each other, the calibration of the indicator needs to be removed from the vertical axis deviation measuring instrument. The verticality deviation calibration can only test whether the rotation axis of the sample is perpendicular to the three-jaw positioning card. The above two methods do not take into account whether the indicator pointer points to the rotation axis of the three-jaw positioning card vertically after reinstallation. This factor will also cause many measurement errors in the actual calibration process. In actual applications, when testing beer bottles, if the indicator pointer does not point vertically through the rotation axis of the three-jaw positioning card, the measurement result will be 0.13mm more than the measurement result of the vertical pointing axis, which is unacceptable in measurement; and the indicator display part used in some vertical axis deviation measuring instruments is on the base of the vertical axis deviation measuring instrument, which is not an independently detachable indicator. The above two calibration methods can only calibrate the verticality deviation, and the accuracy of the indicator cannot be calibrated. From the above, it can be seen that the measurement accuracy of the vertical axis deviation is affected by the error of the measuring length indicator, the design of the three-jaw self-centering chuck, and the relative position of the three-jaw self-centering chuck and the indicator.

[0004] Therefore, there is a need in the art to develop a calibration method that can accurately, quickly and conveniently calibrate a vertical axis deviation measuring instrument without disassembly. Summary of the invention

[0005] The present invention aims to solve the technical problems in the above-mentioned vertical axis deviation measuring instrument calibration method, such as high uncertainty caused by separately disassembling and calibrating the indicator gauge and the instrument for verticality, complicated operation steps, numerous precautions, high skill requirements for operators, and difficulty for non-professionals to complete. The present invention proposes a method for accurately, quickly and conveniently calibrating the vertical axis deviation measuring instrument, which has the advantages of not requiring disassembly of the instrument, improving the accuracy of calibration, being simple to operate and easy to carry and store, and having low skill requirements for the operator.

[0006] In order to achieve the above object, the technical solution adopted by the present invention is: a rapid calibration method of a vertical axis deviation measuring instrument, comprising the following steps:

[0007] S1. Adjust the distance between the indicator probe and the horizontal plate to be consistent with the height of the bottle to be tested;

[0008] Fix the cylindrical standard gauge block on the horizontal plate rotating disk, then sleeve the annular standard gauge block on the outside of the cylindrical standard gauge block, and adjust the height of the annular standard gauge block until the measuring surface of the annular standard gauge block contacts the indicator probe;

[0009] Adjust the probe of the indicator to face the vertical center line of the measuring surface, then adjust the probe to be perpendicular to the measuring surface, and use a triangular square to verify, and complete the indicator measurement position calibration;

[0010] S2. Gently touch the probe of the indicator to the cylindrical standard gauge block and set it to zero;

[0011] Start the vertical axis deviation measuring instrument, slowly rotate the horizontal rotating disk, and record the maximum and minimum values ​​of the distance between the cylindrical standard gauge block and the probe. 1 / 2 of the difference between the maximum and minimum values ​​is the verticality deviation.

[0012] S3. Gently touch the probe of the indicator to the cylindrical standard gauge block and set it to zero;

[0013] Pull out the probe, and respectively put the circular standard gauge blocks of different ranges on the cylindrical standard gauge blocks, and then use the triangular square to adjust the circular standard gauge blocks, so that the probe of the indicator is perpendicular to the measuring surface of the circular standard gauge block, and record the value of the indicator;

[0014] The standard ring block of each measuring range is measured three times, and the average value of the three measurements is the measurement value of different calibration points, completing the error calibration of the indicator;

[0015] S4. Gently touch the probe of the indicator to the cylindrical standard gauge block and set it to zero;

[0016] Pull out the probe, put the annular standard gauge block on the cylindrical standard gauge block, measure 6 times, and record the measured values ​​on the indicator;

[0017] Repeatability was calculated using the Bessel formula.

[0018] In some of the embodiments, the measuring surface of the circular ring standard gauge block is a plane arranged on the outer ring of the circular ring standard gauge block, perpendicular to the shaft radius and parallel to the center axis of the circular ring.

[0019] In some of the embodiments, the surface roughness of the measuring surface is less than 1.6Ra / μm, the parallelism between the measuring surface and the center axis of the ring is less than 2μm, and the distance error between the center line position of the measuring surface and the center of the ring axis is ≤±0.005mm.

[0020] In some of the embodiments, the inner diameter of the annular standard gauge block matches the outer diameter of the cylindrical standard gauge block, and the gap between the two is less than 2 μm.

[0021] In some embodiments, the cylindrical radius of the cylindrical standard gauge block is greater than the distance from the probe head of the dial gauge to the center axis of the horizontal rotating disk.

[0022] In some of the embodiments, the cylindrical standard gauge block has a cylindrical verticality of ≤0.006 mm / 100 mm, a roundness of ≤0.005 mm, and a surface roughness of <1.6 Ra / μm.

[0023] In some of the embodiments, in step S2, if the error of the verticality deviation meets the inspection requirement of no more than 0.05 mm, proceed to the subsequent steps; if the error of the verticality deviation is greater than the inspection requirement of 0.05 mm, the arc surface of the three-jaw self-centering chuck and the horizontal plate rotating disk are adjusted so that the central axis of the cylindrical standard gauge block fixed by the three-jaw self-centering chuck is perpendicular to the horizontal rotating disk.

[0024] In some of the embodiments, in step S3, the measurement error of different calibration points of the indicator = the measurement value of the different calibration points - the nominal value of the gauge block, and the error value of the indicator satisfies ≤0.005 mm.

[0025] On the other hand, the present invention also provides an application of the rapid calibration method of any of the vertical axis deviation measuring instruments mentioned above, which is applied to the calibration before measuring the vertical axis deviation of beer bottles.

[0026] In some of the embodiments, the vertical skewness error is ≤ 0.05 mm and the combined error is ≤ 0.06 mm.

[0027] Compared with the prior art, the advantages and positive effects of the present invention are: the rapid calibration method of the vertical axis deviation measuring instrument of the present invention uses a combination of a portable cylindrical gauge block and a standard ring gauge block. The calibration method is simple and convenient, and accurate calibration can be completed without disassembling the vertical axis deviation measuring instrument, which greatly reduces the inaccurate factors that may be introduced during the disassembly and assembly process. It also facilitates on-site calibration work, and can realize the detection of measurement point errors of the indicator in different measurement intervals, and can perform personalized measurement of detection point errors according to the needs of the instrument user. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 A schematic diagram of the structure of the calibration of the vertical axis deviation measuring instrument provided by an embodiment of the present invention;

[0029] Figure 2 A schematic diagram of the structure of a circular standard gauge block provided by an embodiment of the present invention;

[0030] Figure 3 A schematic diagram of one operation of adjusting a circular ring standard gauge block by a triangular square according to an embodiment of the present invention;

[0031] Figure 4 A schematic diagram of another operation of adjusting a circular ring standard gauge block by a triangular square according to an embodiment of the present invention;

[0032] In the figure, 1. circular standard gauge block, 11. measuring surface, 2. limit card, 3. cylindrical standard gauge block, 4. three-jaw self-centering chuck, 5. display screen, 6. triangular square ruler. DETAILED DESCRIPTION

[0033] In order to be able to understand the characteristics and technical contents of the embodiments of the present invention in more detail, the technical solutions in the embodiments of the present invention will be clearly and completely described below. Obviously, the embodiments described below are only part of the embodiments of the present invention, rather than all the embodiments of the present invention. In the following technical description, for the convenience of explanation, a full understanding of the disclosed embodiments is provided through multiple details. However, one or more embodiments can still be implemented without these details. Based on the embodiments in the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work belong to the scope of protection requested by the present invention.

[0034] An embodiment of the present invention provides a rapid calibration method for a vertical axis deviation measuring instrument, which uses a traceable cylindrical standard gauge block as a basic zero point, assembles circular ring standard gauge blocks of different thicknesses specially made from the traceable standard gauge block and the cylindrical standard gauge block, and performs rapid and accurate calibration on the vertical axis deviation measuring instrument to achieve measurement of the full range of different axis deviations.

[0035] refer to Figure 1 and Figure 2 As shown, the rapid calibration method of the vertical axis deviation measuring instrument of the present invention specifically includes the following steps:

[0036] S1. Preparation of calibration tools and environment:

[0037] Cylindrical standard gauge block 3: Select a cylindrical standard gauge block that is close in height to the sample being measured, and whose diameter d1 satisfies The diameter selection should ensure that the cylindrical gauge block can be stably fixed on the three-jaw self-centering chuck, and the diameter should be as close to the circumference of the measured position as possible under the premise of being smaller than the measuring range of the indicator; for example: the height of the beer bottle sample often measured by the vertical axis deviation measuring instrument is 300mm, the bottom diameter of the beer bottle is about 80mm, and the diameter of the bottle mouth at the daily measurement position is about 25mm. Since the cylindrical gauge block with a diameter less than 40mm is not stable on the three-jaw self-centering chuck, the cylindrical standard gauge block 3 with a length of 400mm and a diameter of 50mm is selected in the experiment. The error requirements are: cylindrical verticality ≤0.006mm / 100mm; roundness ≤0.005mm; surface roughness less than 1.6Ra / μm, d1 error ≤±0.005mm;

[0038] Ring standard blocks 1 with different thicknesses: The outer ring of the ring standard block 1 is set with a plane perpendicular to the shaft radius and parallel to the center axis of the ring as the measuring surface 11, the surface roughness of the measuring surface 11 is less than 1.6Ra / μm, the parallelism of the measuring surface 11 with the center axis of the ring is less than 2μm, the distance d2 between the measuring surface and the inner surface of the ring is selected as 1 / 20, 1 / 10, 1 / 5, 1 / 2 of the range of the indicator, d1+d2 is not greater than the total range of the indicating instrument; d2 error ≤±0.005mm; the inner diameter of the ring standard block 1 matches the outer diameter of the cylindrical standard block 3, the ring standard block 1 can be tightly fitted on the outside of the cylindrical standard block 3, and the gap between the two is less than 2μm; a limit card 2 is set at the bottom of the ring standard block 1, and the ring standard block 1 can stop at different heights of the cylindrical standard block 3 as required according to the movement of the limit card 2;

[0039] Triangle square 6:00 grade;

[0040] Calibration environment: temperature 20℃±5℃; humidity ≤70%;

[0041] S2. Indicator (dial indicator / micrometer) measurement position calibration:

[0042] Adjust the distance between the indicator probe and the horizontal plate to be consistent with the height of the bottle to be tested;

[0043] The cylindrical standard gauge block 3 is fixed on the horizontal plate rotating disk placed on the reference platform by the three-jaw self-centering chuck 4, so that the bottom surface of the cylindrical standard gauge block 3 is in full contact with the horizontal plate rotating disk, and the side surface of the cylindrical standard gauge block 3 is in full contact with the arc surface of the three-jaw self-centering chuck 4;

[0044] A circular standard gauge block 1 with a 1 / 10 range specification is placed outside the cylindrical standard gauge block 3, and the height of the circular standard gauge block 1 is adjusted by moving the limit card 2 set below the circular standard gauge block 3 until the measuring surface 11 of the circular standard gauge block 1 contacts the indicator probe;

[0045] Adjust the probe of the indicator to face the vertical center line of the measuring surface, and then adjust the indicator so that the probe is perpendicular to the measuring surface. Use a triangular square to verify. Figure 3 and Figure 4 As shown, by adjustment, the probe of the indicator can be made perpendicular to the measuring surface and point to the central axis of rotation and be perpendicular to the central axis of rotation;

[0046] S3. Verticality deviation calibration:

[0047] Gently touch the probe of the indicator to the cylindrical standard gauge block 3 and set it to zero;

[0048] Start the vertical axis deviation measuring instrument, slowly rotate the horizontal rotating disk, and record the maximum and minimum values ​​of the distance between the cylindrical standard gauge block 3 and the probe. 1 / 2 of the difference between the maximum and minimum values ​​is the verticality deviation.

[0049] If the error of the verticality deviation meets the inspection requirement, continue with the subsequent steps; if the error of the verticality deviation is greater than the inspection requirement, it is necessary to adjust the arc surface of the three-jaw self-centering chuck 4 and the horizontal plate rotating disk of the instrument so that the central axis of the cylindrical standard gauge block 3 fixed by the three-jaw self-centering chuck 4 is perpendicular to the horizontal rotating disk;

[0050] S4. Indicator error calibration:

[0051] Gently touch the probe of the indicator to the cylindrical standard gauge block 3 and set it to zero;

[0052] Then slowly pull the probe apart, and respectively set the selected nominal value of the annular standard gauge block 1 outside the cylindrical standard gauge block 3. The nominal values ​​of the gauge blocks are L i0 , and then use the triangular square to adjust the circular standard gauge block 1, so that the probe contact point of the indicator is located at the midline of the measuring surface of the standard gauge block 1. At this time, the probe is perpendicular to the measuring surface of the circular standard gauge block 1, and the value of the indicator is recorded. Each circular standard gauge block 1 is measured three times, and the measured value is recorded. The average value of the three measurements is the measured value of different calibration points;

[0053] Indicator error calculation formula: Measurement error at calibration point i

[0054] During the calibration, the position of the limit card and the indicator gauge cannot be adjusted. After the calibration is completed, remove the annular standard gauge block, return the indicator gauge probe to the cylindrical standard gauge block 3, and set it to zero again;

[0055] S5. Repeatability error:

[0056] Gently touch the probe of the indicator to the cylindrical standard gauge block 3 and set it to zero;

[0057] Then slowly pull the probe apart, and place a 1 / 5 range standard ring gauge block or a gauge block 1 with a commonly used measuring range outside the cylindrical standard gauge block 3. Measure 10 times, record the measured values, and calculate the repeatability using the Bessel formula:

[0058]

[0059] Where: Lj represents the jth measurement value;

[0060] n represents the total number of measurements;

[0061] Expressed as the mean of the measurements;

[0062] The maximum allowable error of the instrument can refer to the user's requirements or the design capability requirements of the instrument itself to determine whether it meets the use requirements. If it does not meet the requirements, the indicator needs to be adjusted. After the adjustment is completed, the verticality deviation and indicator error of the instrument must be recalibrated.

[0063] S6. Supplementary calibration:

[0064] According to the height and diameter of the bottle to be measured, a cylindrical standard gauge block 3 of other specifications is added as the zero point, and a circular standard gauge block 1 of other ranges is configured for calibration.

[0065] In order to more clearly and in detail introduce the rapid calibration method of the vertical axis deviation measuring instrument provided by the embodiment of the present invention, it will be described below in conjunction with a specific embodiment.

[0066] Example 1

[0067] refer to Figure 1 As shown, this embodiment is used for measuring and calibrating the vertical axis deviation of beer bottles. The calibrated instrument indicator has a range of 50 mm and a graduation value of 0.01 mm. The digital vertical axis deviation measuring instrument specifically includes the following steps:

[0068] S1. Since the common height of the beer bottle to be measured is 300mm, adjust the dial indicator / micrometer probe to a height of 300mm from the bottom plate; according to the range of the indicator, select the standard ring block 1 with nominal values ​​of 2mm, 5mm, 10mm, and 20mm for measurement, and the calibration point i is 2mm, 5mm, 10mm, and 20mm of the indicator respectively; considering the clamping stability of the three-jaw self-centering chuck, select the cylindrical standard block 3 with a diameter of 50mm and a length of 400mm;

[0069] The standard gauge block 3 is fixed on the horizontal plate rotating disk placed on the reference platform by the three-jaw self-centering chuck 4, so that the bottom surface of the cylindrical standard gauge block 3 is in full contact with the horizontal plate rotating disk, and the side surface of the cylindrical standard gauge block 3 is in full contact with the arc surface of the three-jaw self-centering chuck 4;

[0070] A 1 / 10 range standard ring gauge block 1 is sleeved on the outside of the cylindrical standard gauge block 3, and the height of the ring standard gauge block 1 is adjusted by moving the limit card 2 until the measuring surface 11 of the ring standard gauge block 1 contacts the indicator probe;

[0071] Adjust the probe of the indicator to face the vertical center line of the measuring surface, and then adjust the probe to be perpendicular to the measuring surface. After verification with a triangular square, proceed to the next step.

[0072] S2. Remove the annular standard gauge block 1, and gently touch the probe of the indicator to the cylindrical standard gauge block 3 to set it to zero;

[0073] Start the vertical axis deviation measuring instrument, slowly rotate the horizontal rotating disk, record the maximum value of the distance between the cylindrical standard gauge block 3 and the probe as 0.02mm, the minimum value as -0.03mm, and the 1 / 2 of the difference between the maximum value and the minimum value as 0.025mm. The verticality deviation in this example is 0.025mm. Since the verticality deviation of the beer bottle is allowed to have an error of 0.03mm, the error of the verticality deviation in the experiment meets the inspection requirement of not more than 0.03mm, and continue with the subsequent steps.

[0074] S3, gently touch the probe of the indicator to the cylindrical standard gauge block 3 again to set it to zero;

[0075] Then slowly pull the probe apart, and set the 2mm circular standard gauge block 1 outside the cylindrical standard gauge block 3. Use a triangular square to adjust the circular standard gauge block 1, so that the probe of the indicator is perpendicular to the measuring surface 11 of the circular standard gauge block 1, and fix it. At this time, record the value of the indicator. Then gently pull the pointer of the indicator away from the measuring surface 11 by about 1mm, and then slowly let it return to the side measuring surface 11. It should be put back slowly here, and it cannot be let go directly to bounce back. Record the value of the indicator at this time; then repeat the above steps to measure the 5mm, 10mm, and 20mm standard gauge blocks 1 three times respectively, and record the measured values. The average value of the three measurements is the measured value of the calibration point i.

[0076]

[0077] The measurement data and results of this embodiment are shown in Table 1:

[0078] Table 1 Example 1 Indication Error Calibration Data Table

[0079]

[0080]

[0081] Based on the above measurement results, the error value of the indicator meets the allowable error of ±0.03mm designed by the factory, which meets the requirements and does not require adjustment.

[0082] S4, gently touch the probe of the indicator to the cylindrical standard gauge block 3 and set it to zero;

[0083] Then slowly pull the probe apart, put the 2mm circular standard gauge block 1 on the outside of the cylindrical standard gauge block 3, measure 6 times, and record the measured values ​​as 2.01mm, 2.01mm, 2.02mm, 2.00mm, 1.99mm, 2.01mm, 2.01mm, 2.00mm, 1.98mm, and 1.99mm;

[0084] Calculate the repeatability using the Bessel formula:

[0085]

[0086] The repeatability error was found to be 0.012 mm.

[0087] By using the rapid calibration method of the vertical axis deviation measuring instrument of the present invention to calibrate the on-site beer bottle vertical axis deviation measuring instrument, the verticality deviation is ≤0.03mm, the indication error is ≤±0.03mm, and the repeatability error is 0.012mm, which meets the beer bottle axis deviation detection error requirement of 0.1mm.

[0088] Finally, it should be noted that the present invention is not limited to the above-mentioned embodiments. The above-mentioned embodiments are only the preferred feasible embodiments of the present invention, and the above-mentioned embodiments are only used to illustrate the technical scheme of the present invention, and are not intended to limit the scope of the present invention. Without departing from the design spirit of the present invention, various deformations, modifications, evolutions and improvements made by ordinary technicians in this field to the technical scheme of the present invention should all fall within the protection scope determined by the claims of the present invention.

Claims

1. A rapid calibration method for a vertical axis deviation measuring instrument, characterized in that: The following steps are involved: S1. Adjust the distance between the indicator probe and the horizontal plate to be consistent with the height of the bottle to be tested; Fix the cylindrical standard gauge block on the horizontal plate rotating disk, then sleeve the annular standard gauge block on the outside of the cylindrical standard gauge block, and adjust the height of the annular standard gauge block until the measuring surface of the annular standard gauge block contacts the indicator probe; Adjust the probe of the indicator to face the vertical center line of the measuring surface, then adjust the probe to be perpendicular to the measuring surface, and use a triangular square to verify, and complete the indicator measurement position calibration; S2. Gently touch the probe of the indicator to the cylindrical standard gauge block and set it to zero; Start the vertical axis deviation measuring instrument, slowly rotate the horizontal rotating disk, and record the maximum and minimum values ​​of the distance between the cylindrical standard gauge block and the probe. 1 / 2 of the difference between the maximum and minimum values ​​is the verticality deviation. S3. Gently touch the probe of the indicator to the cylindrical standard gauge block and set it to zero; Pull out the probe, and respectively put the circular standard gauge blocks of different measuring ranges on the cylindrical standard gauge blocks, and then use the triangular square to adjust the circular standard gauge blocks, so that the probe of the indicator is perpendicular to the measuring surface of the circular standard gauge block, and record the value of the indicator; The standard ring block of each measuring range is measured three times, and the average value of the three measurements is the measurement value of different calibration points, completing the error calibration of the indicator; S4. Gently touch the probe of the indicator to the cylindrical standard gauge block and set it to zero; Pull out the probe, put the annular standard gauge block on the cylindrical standard gauge block, measure 6 times, and record the measured values ​​on the indicator; Repeatability was calculated using the Bessel formula.

2. The rapid calibration method of the vertical axis deviation measuring instrument according to claim 1 is characterized in that: The measuring surface of the circular standard gauge block is a plane set on the outer ring of the circular standard gauge block, perpendicular to the shaft radius and parallel to the center axis of the circular ring.

3. The rapid calibration method of the vertical axis deviation measuring instrument according to claim 2, characterized in that: The surface roughness of the measuring surface is less than 1.6Ra / μm, the parallelism between the measuring surface and the center axis of the ring is less than 2μm, and the distance error between the center line position of the measuring surface and the center of the ring axis is ≤±0.005mm.

4. The rapid calibration method of the vertical axis deviation measuring instrument according to claim 1, characterized in that: The inner diameter of the annular standard gauge block matches the outer diameter of the cylindrical standard gauge block, and the gap between the two is less than 2μm.

5. The rapid calibration method of the vertical axis deviation measuring instrument according to claim 1, characterized in that: The cylindrical radius of the cylindrical standard gauge block is greater than the distance from the probe head of the indicator to the center axis of the horizontal rotating disk.

6. The rapid calibration method of the vertical axis deviation measuring instrument according to claim 1, characterized in that: The cylindrical verticality of the cylindrical standard gauge block is ≤0.006mm / 100mm, the roundness is ≤0.005mm, and the surface roughness is less than 1.6Ra / μm.

7. The rapid calibration method of the vertical axis deviation measuring instrument according to claim 1, characterized in that: In step S2, if the error of the verticality deviation meets the inspection requirement of no more than 0.05 mm, proceed to the subsequent steps; if the error of the verticality deviation is greater than the inspection requirement of 0.05 mm, adjust the arc surface of the three-jaw self-centering chuck and the horizontal plate rotating disk so that the central axis of the cylindrical standard block fixed by the three-jaw self-centering chuck is perpendicular to the horizontal rotating disk.

8. The rapid calibration method of the vertical axis deviation measuring instrument according to claim 1, characterized in that: In step S3, the measurement error of different calibration points of the indicator gauge = the measurement value of different calibration points - the nominal value of the gauge block, and the error value of the indicator gauge satisfies ≤0.005mm.

9. Application of the rapid calibration method for a vertical axis deviation measuring instrument according to any one of claims 1 to 8, characterized in that: Used for calibration of beer bottles before measuring vertical axis deviation.

10. Application of the rapid calibration method for a vertical axis deviation measuring instrument according to claim 9, characterized in that: The calibrated vertical skewness error is ≤0.05mm and the combined error is ≤0.06mm.

Images