Comprehensive filing measuring tool for rotary body workpiece and operation method of comprehensive filing measuring tool

By designing a comprehensive gyro workpiece filing and repairing tool including a seat body, cantilever assembly, mandrel, angle measuring plate and symmetry measuring plate, the problem of difficulty in measuring the symmetry and angle of the gyro workpiece simultaneously in the prior art is solved, and high-precision filing and measurement are achieved.

CN119526122AActive Publication Date: 2025-02-28JIANGNAN IND GRP CO LTD
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Patent Information

Application Number
CN202411655414.8
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2024-11-19
Publication Date
2025-02-28
Estimated Expiration
2044-11-19

AI Technical Summary

Technical Problem

The prior art is difficult to simultaneously measure the symmetry of the slewing body workpiece and the angle between the locking hole seat and the air closure tube, and the manual filing process is labor-intensive and the accuracy is difficult to ensure.

Method used

A comprehensive metering tool for slewing workpieces is designed, including a seat body, cantilever assembly, mandrel, angle measuring plate and symmetry measuring plate. These components are used to measure the filing and symmetry and angle of the milling surfaces on both sides of the locking hole seat.

Benefits of technology

High-precision filing and multi-parameter measurement of the locking hole seat of the rotary body workpiece is realized, simplifying the operation process, improving the measurement precision and the machining accuracy of the workpiece.

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Abstract

The invention relates to the technical field of measuring tools, in particular to a revolved body workpiece filing comprehensive measuring tool which comprises a base body and a cantilever assembly arranged at the upper end of the base body, a mandrel located below the cantilever assembly is connected to the base body, and the mandrel comprises a positioning section used for positioning a workpiece to be measured and a locking section used for locking the whole mandrel to the base body. The locking section is provided with a locking assembly, a workpiece to be measured is arranged on the positioning section in a matched and sleeved mode, the cantilever assembly is connected with a first measuring assembly matched with the closed gas pipe for limiting and a second measuring assembly matched with the locking hole seat for filing and repairing measurement, and the cantilever assembly comprises a main cantilever located above the mandrel and a side cantilever located on the side of the mandrel. The first measuring assembly is arranged on the side cantilever, and the second measuring assembly is arranged on the main cantilever. The invention further relates to an operation method of the comprehensive filing measuring tool for the rotary body workpiece. According to the scheme, filing machining can be carried out on the rotary body workpiece, and comprehensive measurement of the angle and the symmetry degree is carried out.
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Description

Technical Field

[0001] The invention relates to the technical field of measuring tooling, and in particular provides a comprehensive measuring tool for filing and repairing a rotating workpiece and an operating method thereof. Background Art

[0002] With the continuous improvement of precision requirements for mechanical processing, the requirements for the machining accuracy of rotating parts are also getting higher and higher. At present, scholars at home and abroad have conducted a lot of research on the measurement of relevant parameters such as diameter, coaxiality, roundness, circular runout, angle, symmetry, etc. of rotating parts. However, most measuring tools can only measure a certain parameter of the rotating body, and cannot perform comprehensive measurement of two or more parameters of more complex rotating bodies at the same time.

[0003] For example, for a rotating workpiece with a locking hole seat and a closed air tube welded on a shell, due to the high symmetry accuracy of the locking hole seat, it is difficult to achieve the required accuracy by milling after welding. It is necessary to mill and then manually file the milling surfaces on both sides to meet the requirements. The manual filing method is labor-intensive and the accuracy is difficult to guarantee. At the same time, after filing, it is necessary to measure the symmetry of the locking hole seat and the angle between the locking hole seat and the closed air tube. The measuring tools in the prior art are difficult to meet the measurement requirements of the symmetry of the locking hole seat and the angle between the locking hole seat and the closed air tube.

[0004] Therefore, it is necessary to design a comprehensive measuring tool for filing and repairing rotating workpieces that can conveniently perform filing and repair on the locking hole seat of the rotating workpiece and measure the symmetry and angle. This is an urgent problem that needs to be solved. Summary of the invention

[0005] In order to solve the above problems, the present invention provides a comprehensive filing measuring tool for a rotating workpiece and an operating method thereof, which can perform filing processing on the milling surfaces on both sides of the locking hole seat, and can also measure the angle between the locking hole seat and the airtight tube, and the symmetry of the locking hole seat.

[0006] The present invention provides a comprehensive measuring tool for filing and repairing a rotating workpiece, which specifically includes a base body and a cantilever assembly arranged at the upper end of the base body, the base body is connected to a spindle located below the cantilever assembly, the spindle includes a positioning section for positioning the workpiece to be measured and a locking section for locking the spindle as a whole to the base body, the locking section is provided with a locking assembly, and the workpiece to be measured is matched with the positioning section; the cantilever assembly is connected to a measuring assembly 1 for limiting the position in cooperation with a closed air tube and a measuring assembly 2 for filing and repairing measurement in cooperation with a closed hole seat.

[0007] Furthermore, an axial hole is opened on the seat body and a shaft sleeve is arranged in the axial hole, the locking section of the central shaft is installed in the shaft sleeve and extends to the outside of the shaft sleeve, and the locking assembly locks the central shaft to the shaft sleeve and the seat body on the outside of the shaft sleeve; the positioning section of the central shaft is located on the side of the axial hole away from the locking assembly.

[0008] Furthermore, the cantilever assembly includes a main cantilever located above the spindle and a side cantilever located on the side of the spindle, the measuring assembly 1 is arranged on the side cantilever, and the testing assembly 2 is arranged on the main cantilever.

[0009] Furthermore, a test slot is provided on the main cantilever, and the second test component includes an angle measuring plate and a symmetry measuring plate installed in the test slot; both the angle measuring plate and the symmetry measuring plate are provided with measuring inner slots, the width of the measuring inner slot on the angle measuring plate matches the angle measurement requirement setting, and the width of the measuring inner slot on the symmetry measuring plate matches the symmetry measurement requirement setting.

[0010] Furthermore, assuming that the width of the inner groove measured on the angle measuring plate is C1, C1 is calculated by the tolerance range of the angle α; assuming that the width of the inner groove measured on the symmetry measuring plate is C2, C2 is determined by the maximum physical dimension of the locking hole seat width.

[0011] Furthermore, a mounting hole is opened on the side cantilever, and the measuring component 1 includes a bushing arranged in the mounting hole and a connecting rod passing through the bushing, and the side of the connecting rod close to the central axis includes a limit block that can lock the air-blocking tube.

[0012] Furthermore, the limiting block includes a limiting socket, which includes a limiting opening close to the side cantilever and a guiding opening close to the central axis; the limiting opening is a cylindrical opening structure matching the outer end of the air-blocking tube, and the guiding opening is an eight-shaped opening structure.

[0013] Furthermore, a tail groove is opened at the end of the seat body, and the locking assembly includes a stop rod rotatably connected to the locking section in the main shaft, and the stop rod can be rotated on the main shaft and clamped in the tail groove to lock the main shaft and the seat body; the locking assembly also includes a locking member located between the stop rod and the sleeve, and the main shaft and the sleeve are locked by the locking member.

[0014] Furthermore, the positioning section of the spindle includes a small frustum and a large frustum whose inner diameters gradually increase from the outside toward the sleeve direction, and the small frustum and the large frustum respectively position the small circular shell and the large circular shell of the workpiece to be measured; the central axis L3 of the spindle coincides with the central axis of the workpiece to be measured, and the central axis L3 of the spindle is perpendicular to the central axis L2 of the angle measuring plate or the symmetry measuring plate.

[0015] An operating method of a comprehensive file repair measuring tool for a rotating workpiece, using the comprehensive file repair measuring tool to perform file repair measurement on the workpiece to be measured, comprises the following steps:

[0016] S1: The workpiece to be measured is mounted on the positioning section of the mandrel. At this time, the large circular table positions the large circular shell, and the small circular table positions the small circular shell;

[0017] S2: Rotate the stop rod and make it snap into the tail groove of the seat body to lock the spindle and the seat body;

[0018] S3: Compare the angle measuring plate and the symmetry measuring plate respectively, and file and repair the milling surfaces on both sides of the locking hole seat until the milling surfaces on both sides of the locking hole seat meet the requirements;

[0019] S4: Loosen the stop rod, lock the air-tight pipe through the limit block and press the workpiece to be tested;

[0020] S5: Install the angle measuring plate into the test slot, and insert the measuring inner slot of the angle measuring plate into the locking hole seat. If it is inserted into place, the angle between the locking hole seat and the airtight tube is qualified;

[0021] Install the symmetry measuring plate into the test slot, and insert the measuring inner slot of the symmetry measuring plate into the locking hole seat. If it is inserted into place, the symmetry of the locking hole seat is qualified.

[0022] Compared with the prior art, the present invention can achieve the following beneficial effects: the comprehensive measuring tool for filing and repairing of rotating workpieces and the operating method thereof in the present invention can make the design datum and the measuring datum coincide with each other after the workpiece is installed and positioned, and the angle measuring plate and the symmetry measuring plate are compared on the measuring tool to perform filing and repair on the workpiece to be measured, and then the angle and symmetry are measured. The measurement of this scheme is precise and reliable, the operation is simple, and multifunctional integrated operation can be realized. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the main structure of the integrated measuring tool for filing and repairing a rotating workpiece provided in accordance with an embodiment of the present invention;

[0024] Figure 2 It is a left-side structural schematic diagram of a rotary workpiece filing and repairing comprehensive measuring tool provided according to an embodiment of the present invention;

[0025] Figure 3 It is a schematic diagram of the three-dimensional structure of the integrated measuring tool for filing and repairing a rotating workpiece provided in accordance with an embodiment of the present invention;

[0026] Figure 4 is an engineering schematic diagram of a workpiece to be tested provided according to an embodiment of the present invention;

[0027] Figure 5 is a schematic diagram of the three-dimensional structure of a workpiece to be tested provided according to an embodiment of the present invention;

[0028] Figure 6 is a schematic structural diagram of an angle measuring plate provided according to an embodiment of the present invention;

[0029] Figure 7 is a schematic structural diagram of a seat body provided according to an embodiment of the present invention;

[0030] Figure 8 is a schematic structural diagram of a mandrel provided according to an embodiment of the present invention;

[0031] Fig. 9 is a schematic structural diagram of a stop rod provided according to an embodiment of the present invention.

[0032] The accompanying drawings include: base 1, spindle 2, positioning section 3, locking section 4, measuring component one 5, measuring component two 6, sleeve 7, main cantilever 8, side cantilever 9, test slot 10, angle measuring plate 11, measuring inner slot 12, connecting rod 13, limit block 14, limit opening 15, guide opening 16, bushing 17, tail slot 18, stop rod 19, connecting pin 20, locking nut 21, locking screw 22, small round table 23, large round table 24, small round shell 25, large round shell 26, locking hole seat 27, air closing tube 28, shaft hole 29, large screw 30, handle 31, locking pin 32. DETAILED DESCRIPTION

[0033] In the following, reference will be made to the Figure 1-9 Embodiments of the present invention are described. In the following description, the same modules are represented by the same reference numerals. In the case of the same reference numerals, their names and functions are also the same. Therefore, the detailed description thereof will not be repeated.

[0034] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the following Figure 1-9 It should be understood that the specific embodiments described herein are only used to explain the present invention and do not constitute a limitation of the present invention.

[0035] A comprehensive measuring tool for filing and repairing a rotating workpiece is used for filing and repairing a workpiece to be measured with a rotating structure, such as Figure 5 As shown, the workpiece to be measured includes a small circular shell 25 and a large circular shell 26 of a rotating body structure. The inner diameter of the small circular shell 25 is smaller than the inner diameter of the large circular shell 26. The connection between the small circular shell 25 and the large circular shell 26 includes a locking hole seat 27 and a sealing tube 28.

[0036] like Figure 1 , Figure 2 As shown, the filing and repairing comprehensive measuring tool includes a base body 1 and a cantilever assembly arranged at the upper end of the base body 1, and the base body 1 is connected to a spindle 2 located below the cantilever assembly. Figure 8 As shown, the spindle 2 includes a positioning section 3 and a locking section 4. The positioning section 3 is used to position and install the workpiece to be measured, and the locking section 4 is used to lock the spindle 2 as a whole on the base body 1. The positioning section 3 includes a small round table 23 and a large round table 24. The small round table 23 and the large round table 24 respectively position the small round shell 25 and the large round shell 26 of the workpiece to be measured. Figure 1 In the figure, the workpiece to be measured is shown at K. At the same time, the center axis L3 of the spindle 2 coincides with the center axis of the workpiece to be measured, and the adjustment basis of the symmetry of the workpiece to be measured is also to make the center axis L3 of the spindle coincide with the center axis of the workpiece to be measured.

[0037] like Figures 1 to 3 , Figure 7 As shown, an axial hole 29 is opened on the seat body 1, and the positioning section 3 of the spindle 2 is located on the side of the axial hole 29 away from the locking assembly. A shaft sleeve 7 is arranged in the axial hole 29, and the locking section 4 of the spindle 2 is installed in the shaft sleeve 7 and extends to the outside of the shaft sleeve 7. A locking assembly is arranged on the locking section 4. The locking assembly locks the spindle 2 to the shaft sleeve 7 and the seat body 1 on the outside of the shaft sleeve 7. The inner diameters of the small cone 23 and the large cone 24 gradually increase from the outside toward the shaft sleeve 7.

[0038] The end of the seat body 1 is provided with a tail groove 18, which includes a plurality of tail grooves 18 uniformly opened in the circumferential direction at the end of the seat body 1 based on the central axis L3. The locking assembly includes a stop rod 19 rotatably connected to the locking section 4 in the spindle 2. The stop rod 19 can rotate on the spindle 2 and be clamped in the tail groove 18 to lock the spindle 2 and the seat body 1. Fig. 9 As shown, the stop rod 19 is rotatably connected to the tail end of the spindle 2 at X1, and the rotating handle at X2 is clamped in the tail groove 18. The locking assembly also includes a locking member located between the stop rod 19 and the sleeve 7, and the locking member locks the spindle 2 and the sleeve 7, as shown in FIG. Figure 1 As shown, the locking member includes a locking nut 21 and a locking screw 22 , and the spindle 2 and the sleeve 7 are locked by the locking nut 21 and the locking screw 22 .

[0039] like Figures 1 to 3 As shown, the cantilever assembly includes a main cantilever 8 located above the spindle 2 and a side cantilever 9 located on the side of the spindle 2. The main cantilever 8 and the side cantilever 9 are installed on the base 1. Figure 7 The cantilever assembly is connected with a measuring assembly 1 5 for limiting the position with the air-blocking tube 28 and a measuring assembly 2 6 for measuring the filing with the locking hole seat 27. The measuring assembly 1 5 is arranged on the side cantilever 9, and the measuring assembly 2 is arranged on the main cantilever 8. The angle between the locking hole seat 27 and the air-blocking tube 28 to be measured is the angle α between the central axis L1 of the measuring assembly 1 5 and the central axis L2 of the measuring assembly 2 6. The central axis L3 of the mandrel 2 is perpendicular to the central axis L2 of the angle measuring plate 11 or the symmetrical measuring plate.

[0040] like Figure 2 , Figure 6 As shown, a test slot 10 is provided on the main cantilever 8, and the second test component includes an angle measuring plate 11 and a symmetry measuring plate installed in the test slot 10. When measuring the angle, the angle measuring plate 11 is installed in the test slot 10, and when testing the symmetry, the symmetry measuring plate is installed in the test slot 10. In this embodiment, the angle test is taken as an example, and the angle measuring plate 11 is installed in the test slot 10. Both the angle measuring plate 11 and the symmetry measuring plate are provided with a measuring inner slot 12, and the width of the measuring inner slot 12 on the angle measuring plate 11 matches the angle measurement requirement setting, and the width of the measuring inner slot 12 on the symmetry measuring plate matches the symmetry measurement requirement setting.

[0041] The difference between the angle measuring plate 11 and the symmetrical measuring plate is that the width dimensions of the inner groove 12 are different. If the width of the inner groove 12 measured on the angle measuring plate 11 is C1, then C1 is calculated by the tolerance range of the angle α. If the width of the inner groove 12 measured on the symmetrical measuring plate is C2, then C2 is determined by the maximum physical dimension of the width dimension of the locking hole seat 27. The maximum physical dimension is as follows: Figure 4 As shown in C. Figure 6 Taking the angle measuring plate 11 as an example, the angle measuring plate 11 and the width C1 of the measuring inner groove 12 are shown, and the symmetrical measuring plate is not shown. The symmetrical measuring plate and the width C2 of the measuring inner groove 12 can be analogous to the angle measuring plate 11.

[0042] like Figure 2 , Figure 3 As shown, a mounting hole is provided on the side cantilever 9, and a measuring component 15 includes a bushing 17 provided in the mounting hole and a connecting rod 13 passed through the bushing 17, the bushing 17 is locked by a large screw 30, and the side of the connecting rod 13 close to the spindle 2 includes a limit block 14 that can lock the air-blocking tube 28, and the end of the connecting rod 13 away from the limit block 14 is connected to a handle 31 through a locking pin 32, and the symmetry accuracy and the angle α accuracy are ensured by measuring components 1 5 and 2 6.

[0043] The limit block 14 includes a limit socket, which includes a limit opening 15 close to the side cantilever 9 and a guide opening 16 close to the core shaft 2. The limit opening 15 is a cylindrical opening structure that matches the outer end of the air-blocking tube 28, and the guide opening 16 is an eight-shaped opening structure. The inner diameter of the upper end of the air-blocking tube 28 is greater than the inner diameter of the lower end. The air-blocking tube 28 has a stepped structure as a whole. The limit opening 15 matches the upper small-diameter end of the air-blocking tube 28 for limiting, and the guide opening 16 can match the size of the lower large-diameter end of the air-blocking tube 28, which can assist the limit opening 15 in limiting without causing interference.

[0044] An operating method of a comprehensive file repair measuring tool for a rotating workpiece, using the comprehensive file repair measuring tool to perform file repair measurement on the workpiece to be measured, comprises the following steps:

[0045] S1: The workpiece to be measured is mounted on the positioning section 3 of the spindle 2. At this time, the large circular table 24 positions the large circular shell 26, and the small circular table 23 positions the small circular shell 25.

[0046] S2: Rotate the stop rod 19 and make the stop rod 19 snap into the tail groove 18 of the seat body 1 to lock the spindle 2 and the seat body 1.

[0047] S3: Compare the angle measuring plate 11 and the symmetry measuring plate respectively, and use a fine flat file to file and repair the milling surfaces on both sides of the locking hole seat 27 until the milling surfaces on both sides of the locking hole seat 27 meet the requirements, such as Figure 4As shown, ensure that the dimensions C and D of the workpiece to be tested are qualified.

[0048] S4: Release the stop rod 19, lock the air-blocking tube 28 through the limit block 14 and press the workpiece to be tested.

[0049] S5: Install the angle measuring plate 11 into the test slot 10, and insert the measuring inner slot 12 of the angle measuring plate 11 into the locking hole seat 27. If it is inserted into place, the angle between the locking hole seat 27 and the air-blocking tube 28 is qualified.

[0050] The symmetry measuring plate is installed in the test slot 10, and the measuring inner slot 12 of the symmetry measuring plate is inserted into the locking hole seat 27. If it is inserted into place, the symmetry of the locking hole seat 27 is qualified.

[0051] In this way, the comprehensive filing measuring tool can be used to complete the filing processing of the workpiece to be measured, and the comprehensive measurement of angle and symmetry can be completed.

[0052] Although the embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and cannot be understood as limiting the present invention. Those skilled in the art may change, modify, replace and modify the above embodiments within the scope of the present invention.

[0053] The above specific implementations of the present invention do not constitute a limitation on the protection scope of the present invention. Any other corresponding changes and modifications made based on the technical concept of the present invention should be included in the protection scope of the claims of the present invention.

Claims

1. A comprehensive measuring tool for filing and repairing a rotating workpiece, characterized in that: The invention comprises a seat body (1) and a cantilever assembly arranged at the upper end of the seat body (1); the seat body (1) is connected to a spindle (2) located below the cantilever assembly; the spindle (2) comprises a positioning section (3) for positioning a workpiece to be measured and a locking section (4) for locking the spindle (2) as a whole on the seat body (1); the locking section (4) is provided with a locking assembly; the workpiece to be measured is matched and sleeved on the positioning section (3); the cantilever assembly is connected to a measuring assembly (5) for limiting the position in cooperation with a gas-blocking tube (28) and a measuring assembly (6) for filing and measuring in cooperation with a locking hole seat (27).

2. The comprehensive measuring tool for filing and repairing a rotating workpiece according to claim 1, characterized in that: The seat body (1) is provided with an axial hole (29) and a shaft sleeve (7) is arranged in the axial hole (29); the locking section (4) of the spindle (2) is installed in the shaft sleeve (7) and extends to the outside of the shaft sleeve (7); the locking assembly locks the spindle (2) to the shaft sleeve (7) and the seat body (1) on the outside of the shaft sleeve (7); the positioning section (3) of the spindle (2) is located on the side of the axial hole (29) away from the locking assembly.

3. The integrated measuring tool for filing and repairing a rotating workpiece according to claim 2, characterized in that: The cantilever assembly comprises a main cantilever (8) located above the spindle (2) and a side cantilever (9) located on the side of the spindle (2), a measuring assembly 1 (5) is arranged on the side cantilever (9), and a testing assembly 2 is arranged on the main cantilever (8).

4. The comprehensive measuring tool for filing and repairing a rotating workpiece according to claim 3, characterized in that: The main cantilever (8) is provided with a test slot (10), and the second test component comprises an angle measuring plate (11) and a symmetry measuring plate installed in the test slot (10); both the angle measuring plate (11) and the symmetry measuring plate are provided with a measuring inner slot (12), the width of the measuring inner slot (12) on the angle measuring plate (11) matches the angle measurement requirement setting, and the width of the measuring inner slot (12) on the symmetry measuring plate matches the symmetry measurement requirement setting.

5. The comprehensive measuring tool for filing and repairing a rotating workpiece according to claim 4, characterized in that: Assuming that the width of the inner groove (12) measured on the angle measuring plate (11) is C1, C1 is calculated from the tolerance range of the angle α; Assuming that the width of the inner groove (12) measured on the symmetrical measuring plate is C2, C2 is determined by the maximum physical dimension of the width dimension of the locking hole seat (27).

6. The comprehensive measuring tool for filing and repairing a rotating workpiece according to claim 5, characterized in that: The side cantilever (9) is provided with a mounting hole, and the measuring component 1 (5) includes a bushing (17) arranged in the mounting hole and a connecting rod (13) passing through the bushing (17), and the side of the connecting rod (13) close to the spindle (2) includes a limit block (14) capable of locking the air-blocking tube (28).

7. The integrated measuring tool for filing and repairing a rotating workpiece according to claim 6, characterized in that: The limit block (14) comprises a limit socket, which comprises a limit opening (15) close to the side cantilever (9) and a guide opening (16) close to the spindle (2); the limit opening (15) is a columnar opening structure matching the outer end of the air-blocking tube (28), and the guide opening (16) is an eight-shaped opening structure.

8. The integrated measuring tool for filing and repairing a rotating workpiece according to claim 7, characterized in that: The base body (1) has a tail groove (18) at its end, and the locking assembly comprises a stop rod (19) rotatably connected to the locking section (4) in the spindle (2), the stop rod (19) can be rotated on the spindle (2) and clamped in the tail groove (18) to lock the spindle (2) and the base body (1); the locking assembly also comprises a locking member located between the stop rod (19) and the shaft sleeve (7), and the locking member locks the spindle (2) and the shaft sleeve (7).

9. The integrated measuring tool for filing and repairing a rotating workpiece according to claim 8, characterized in that: The positioning section (3) of the spindle (2) comprises a small cone (23) and a large cone (24) whose inner diameters gradually increase from the outside toward the sleeve (7), and the small cone (23) and the large cone (24) respectively position the small circular shell (25) and the large circular shell (26) of the workpiece to be measured; the central axis L3 of the spindle (2) coincides with the central axis of the workpiece to be measured, and the central axis L3 of the spindle (2) is perpendicular to the central axis L2 of the angle measuring plate (11) or the symmetry measuring plate.

10. A method for operating a comprehensive filing gauge for a rotating workpiece, wherein the comprehensive filing gauge according to claim 8 or 9 is used to perform filing measurement on the workpiece to be measured, characterized in that: The steps include: S1: The workpiece to be measured is mounted on the positioning section (3) of the spindle (2), at which time the large circular table (24) positions the large circular shell (26), and the small circular table (23) positions the small circular shell (25); S2: Rotate the stop rod (19) and make the stop rod (19) snap into the tail groove (18) of the seat body (1) to lock the spindle (2) and the seat body (1); S3: Compare the angle measuring plate (11) and the symmetry measuring plate respectively, and file and repair the milling surfaces on both sides of the locking hole seat (27) until the milling surfaces on both sides of the locking hole seat (27) meet the requirements; S4: Release the stop rod (19), lock the air-tight tube (28) through the limit block (14) and press the workpiece to be tested; S5: Install the angle measuring plate (11) into the test slot (10), and insert the measuring inner slot (12) of the angle measuring plate (11) into the locking hole seat (27). If the insertion is in place, the angle between the locking hole seat (27) and the air-blocking tube (28) is qualified; The symmetry measuring plate is installed in the test slot (10), and the measuring inner slot (12) of the symmetry measuring plate is inserted into the locking hole seat (27). If the insertion is in place, the symmetry of the locking hole seat (27) is qualified.

Citation Information

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