A structure and method for testing the inclination rotation error of a rotary device

Abstract

The present invention belongs to the field of mechanical technology, and relates to a structure and a testing method for testing the inclination rotation error of a rotary device. The structure comprises a plane mirror assembly (4), a micrometer (3), a tool support frame (1), a reflector adapter (6), a reflector assembly (7) and a light pipe (10). The present invention converts the light of the light pipe (10) into vertical light through the reflection of the reflector (7-3) and projects it onto the plane mirror (4-3) at the end of the measured shaft (8), rotates the measured shaft (8), reads the reading of the light pipe (10), and calculates the reading of the light pipe (10) to obtain the inclination rotation error of the measured shaft (8). The method solves the problem that the inclination rotation error of some rotary devices cannot be measured due to their structural characteristics or that the inclination rotation error of some devices can only be tested during the assembly process.

Description

Technical Field

[0001] The invention belongs to the field of mechanical technology and relates to a structure and a method for testing the inclination rotation error of a rotary device. Background Art

[0002] The rotary shaft system generally consists of a rotary shaft, bearings, power elements and other components. The error generated by the rotary shaft during the processing, the installation accuracy of the bearings, the clearance of the bearings themselves, and the torque of the power elements when the rotary shaft rotates will cause the rotary shaft to swing during the rotation process. This swing deviation is called the shaft system inclination rotation error. For high-precision rotary equipment, the inclination rotation error is an important parameter.

[0003] Some high-precision rotary devices cannot test their inclination rotation error due to their structural characteristics, or can only test the inclination rotation error of the rotary axis during a certain installation process. In this way, there is a deviation between the measured inclination rotation error and the final inclination rotation error. Summary of the invention

[0004] The purpose of the present invention is to provide a structure and a testing method for testing the inclination rotation error of a rotating device, which can solve the problem that some rotating devices cannot measure the inclination rotation error due to their structural characteristics or some devices can only test the inclination rotation error during the assembly process.

[0005] The technical solution of the present invention is as follows: a structure for testing the inclination rotation error of a rotary device, comprising a plane mirror assembly 4, a micrometer 3, a tool support frame 1, a reflector adapter 6, an adjustment screw c11, a reflector assembly 7 and a light tube 10; the plane mirror assembly 4 is mounted on the shaft end of a measured shaft 8, the tool support frame 1 is mounted on the support frame of the rotary device, the micrometer 3 is mounted on the tool support frame 1, and the micrometer 3 is used to measure the verticality of the plane mirror 4-3 of the plane mirror assembly 4 and the axis of the measured shaft 8, and the plane mirror is adjusted by adjusting the plane mirror The adjustment screw a4-3 of the component 4 adjusts the plane mirror 4-3 to be perpendicular to the axis of the measured shaft 8, and the micrometer 3 is removed; the reflector assembly 7 is installed on the reflector adapter 6, and then it is installed as a whole on the tooling support frame 1. The tooling support frame 1 is installed on the rotating equipment support frame through the tooling support frame mounting screws 2. A visual window 9 is designed on the opposite side of the rotating equipment support frame where the tooling support frame 1 is installed. The light projected by the light tube 10 shines on the reflector 7-3 of the reflector assembly 7 through the visible window 9.

[0006] The height of the light projected by the light pipe 10 is consistent with the height of the center of the reflector 7 - 3 .

[0007] The plane mirror assembly 4 also includes a plane mirror cover 4-2, a clamping screw a4-4, and an adjustment screw a4-6; the plane mirror seat 4-1 is designed with a positioning stop for the measured shaft 8, the plane mirror cover 4-2 fixes the plane mirror 4-3 on the plane mirror seat 4-1 through the clamping screw a4-4, and the plane mirror seat 4-1 has four evenly distributed threaded holes for installing the adjustment screw a4-6, and the adjustment screw a4-6 passes through the plane mirror seat 4-1 and is pressed against the end face of the measured shaft 8.

[0008] The reflector assembly 7 includes a reflector seat 7-1, a reflector 7-3, a reflector pressure cover 7-2, a clamping screw b7-4, a mounting screw b7-5 and an adjustment screw b7-6; the reflector assembly 7 is fixedly mounted on the reflector adapter seat 6 by the mounting screw b7-5; the reflector pressure cover 7-2 fixes the reflector 7-3 on the reflector seat 7-1 by the clamping screw b7-4, and the reflector seat 7-1 has four evenly distributed threaded holes for installing the adjustment screws b7-6, and the angular position of the reflector 7-3 is adjusted by the four adjustment screws b7-6.

[0009] The reflector adapter 6 is a "∠"-shaped structure with an angle of 45°. A long hole is designed at the connection position with the tooling support frame 1, which can adjust the horizontal position of the reflector assembly 7. The center of the reflector 7-3 is adjusted to just below the center of the plane mirror 4-3 by adjusting the screw c11. The reflector 7-3 forms an angle of 45° with the ground. A threaded hole is designed at the corner position of the reflector adapter 6 for installing the adjusting screw c11. A rectangular boss is designed at the connecting end of the tooling support frame 1 and the reflector adapter 6 at the corner position. The adjusting screw c11 passes through the reflector adapter 6 and is pressed onto the boss of the tooling support frame 1. The horizontal position of the reflector assembly 7 is adjusted by adjusting the pressing amount of the screw c11, and the angle 4-3 between the reflector 7-3 and the plane mirror is adjusted by adjusting the screw b7-6.

[0010] The testing method of the structure for testing the inclination rotation error of the rotating device comprises the following steps:

[0011] Step 1: Use the micrometer 3 to test the verticality of the plane mirror 4-3 and the axis of the measured shaft 8, and adjust the plane mirror 4-3 and the axis of the measured shaft 8 to be vertical by adjusting the adjustment screw a4-3;

[0012] Step 2: The reflector adapter 6 adjusts the center of the reflector 7-3 to be directly below the center of the plane mirror 4-3 by adjusting the screw c11;

[0013] Step 3: The light projected by the light pipe 10 is reflected by the reflector 7-3 and then incident on the plane mirror 4-3. By adjusting the adjustment screw b7-6, the light of the light pipe 10 is reflected to the center of the plane mirror 4-3.

[0014] Step 4: Rotate the measured shaft 8 clockwise for one circle at 10° intervals to obtain 36 sets of data, and calculate the inclination rotation error of the equipment.

[0015] The method of step 1 using the micrometer 3 to test the perpendicularity of the plane mirror 4-3 and the axis of the measured shaft 8 is to make the contact of the micrometer 3 vertically contact the edge of the plane mirror 4-3, rotate the bezel of the micrometer 3 to align the zero mark on the dial with the pointer, rotate the measured shaft 8 90° clockwise, read the runout of the micrometer 3, adjust the adjustment screw a4-3 closest to the contact to press the end face of the measured shaft 8 until the runout of the micrometer 3 becomes half of the original runout, read the pointer of the micrometer 3 to zero, rotate the measured shaft 8 90° clockwise again, read the runout of the micrometer 3, adjust the adjustment screw a4-6 closest to the contact again, and repeat the above process until the runout of the micrometer 3 at the four positions of 0°, 90°, 180°, and 270° are all zero, and the plane mirror 4-3 is perpendicular to the axis of the measured shaft 8.

[0016] The specific operation method of step 3 is to set the reading of the light tube 10 to zero, rotate the measured axis 8 by 180°, obtain the two readings of the light tube 10X and Y, first adjust the adjustment screw c11 to control the X and Y readings within 200, then adjust the adjustment screw b7-6 of the reflector assembly 7 to make the X and Y readings become half of the original readings, set the readings of the light tube 10X and Y to zero, then rotate the measured axis 8 by 180°, repeat the above operation until the readings of the light tube 10X and Y at the two positions are both zero, so as to realize the reflection of the light of the light tube 10 to the center of the plane mirror 4-3.

[0017] The effect of the present invention is: the present invention is a structure for testing the inclination rotation error of a rotating device, which can solve the problem that the inclination rotation error cannot be measured when the structure of the rotating device is limited or the inclination can only be measured during the assembly process. It has the advantages of simple structure, convenient operation, easy maintenance, small size, low cost, etc. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the structure of the present invention when the plane mirror is adjusted to be perpendicular to the measured axis.

[0019] Figure 2 The figure is a schematic diagram of the structure of the process of testing the inclination rotation error of the present invention.

[0020] Figure 3 It is a schematic diagram of the structure of the plane mirror assembly of the present invention.

[0021] Figure 4 The plane mirror assembly of the present invention is along Figure 3 Schematic diagram of the structure cut in the indicated direction.

[0022] Figure 5It is a schematic diagram of the installation of the tooling support frame and the reflector adapter of the present invention.

[0023] Figure 6 For the present invention Figure 5 Schematic diagram of the section downward along the middle horizontal position.

[0024] Figure 7 It is a schematic diagram of the structure of the reflector assembly of the present invention.

[0025] Figure 8 The reflector assembly of the present invention is along Figure 7 Schematic diagram of the structure cut in the indicated direction.

[0026] Fig. 9 This is a schematic diagram of the installation position when testing the pitch axis in Example 2 of the present invention.

[0027] Fig.10 This is a schematic diagram of the installation position of the rolling shaft tested in Example 3 of the present invention.

[0028] Among them, 1 tooling support frame, 2 tooling support frame mounting screws, 3 micrometer, 4 plane mirror assembly, 5 reflector adapter mounting screws, 6 reflector adapter, 7 reflector assembly, 8 measured axis, 9 viewing window, 10 light tube, 11 adjustment screw c, 12 adjustment screw b.

[0029] 4-1 plane mirror seat, 4-2 plane mirror cover, 4-3 plane mirror, 4-4 clamping screw a, 4-5 mounting screw a, 4-6 adjustment screw a.

[0030] 7-1 reflector seat, 7-2 reflector cover, 7-3 reflector, 7-7 clamping screw b, 7-5 mounting screw b, 7-6 adjusting screw b. DETAILED DESCRIPTION

[0031] The present invention is further described below in conjunction with the accompanying drawings and embodiments:

[0032] In the fields of aviation, aerospace, navigation, weapons, etc., turntables have been widely used as a high-precision rotation test equipment. The inclination rotation error is an important technical indicator for the turntable, which directly affects the rotation accuracy of the axis system. Some turntables have a compact structure and cannot meet the requirement of projecting the light tube directly onto the plane mirror at the end of the axis. This method can be used to measure their inclination rotation error.

[0033] Example 1

[0034] A structure for testing the inclination rotation error of a rotary device, comprising a plane mirror assembly 4, a micrometer 3, a tool support frame 1, a reflector adapter 6, an adjustment screw c11, a reflector assembly 7 and a light pipe 10; the plane mirror assembly 4 is mounted on the shaft end of a measured shaft 8, the tool support frame 1 is mounted on the support frame of the rotary device, the micrometer 3 is mounted on the tool support frame 1, and the micrometer 3 is used to measure the verticality of the plane mirror 4-3 of the plane mirror assembly 4 and the axis of the measured shaft 8. By adjusting the adjustment screw of the plane mirror assembly 4, the verticality of the plane mirror 4-3 of the plane mirror assembly 4 and the axis of the measured shaft 8 are measured. After adjusting the position of the plane mirror 4-3 to be perpendicular to the axis of the measured shaft 8 by screw a4-3, remove the micrometer 3; install the reflector assembly 7 on the reflector adapter 6, and then install it as a whole on the tooling support frame 1. A visual window 9 is designed on the opposite side of the rotary equipment support frame of the tooling support frame 1. The light projected by the light tube 10 shines on the reflector 7-3 of the reflector assembly 7 through the visual window 9. The light projected by the light tube 10 keeps a high consistency with the center of the reflector 7-3.

[0035] The plane mirror assembly 4 also includes a plane mirror pressure cover 4-2, a clamping screw a4-4, a mounting screw a4-5 and an adjusting screw a4-6; the plane mirror assembly 4 is fixedly mounted on the measured shaft 8 by the mounting screw a4-5, and the plane mirror seat 4-1 is provided with a positioning stop with the measured shaft 8, which limits the error range of the perpendicularity between the plane mirror 4-3 and the measured shaft 8; the plane mirror pressure cover 4-2 fixes the plane mirror 4-3 on the plane mirror seat 4-1 by the clamping screw a4-4, and the plane mirror seat 4-1 has four evenly distributed threaded holes for installing the adjusting screws a4-6, and the adjusting screws a4-6 pass through the plane mirror seat 4-1 to clamp the end face of the measured shaft 8, and the angular position of the plane mirror 4-3 is fine-tuned by the clamping degree of the four adjusting screws a4-6.

[0036] The reflector assembly 7 includes a reflector seat 7-1, a reflector 7-3, a reflector pressure cover 7-2, a clamping screw b7-4, a mounting screw b7-5 and an adjustment screw b7-6; the reflector assembly 7 is fixedly mounted on the clamping reflector adapter seat 6 by the mounting screw b7-5; the reflector pressure cover 7-2 fixes the reflector 7-3 on the reflector seat 7-1 by the clamping screw b7-4, and the reflector seat 7-1 has four evenly distributed threaded holes for installing the adjustment screws b7-6, and the clamping reflector adapter 6 fine-tunes the angular position of the reflector 7-3 by four adjustment screws b7-6.

[0037] The reflector adapter 6 is a "∠"-shaped structure with an angle of 45°. A long hole is designed at the connection position with the tooling support frame 1, which can adjust the horizontal position of the reflector assembly 7. The reflector adapter 6 is adjusted through the long hole to the point where the center of the reflector 7-3 is directly below the center of the plane mirror 4-3, and the reflector 7-3 forms an angle of 45° with the ground. A threaded hole is designed at the corner position of the reflector adapter 6 to install the adjustment screw c11. A rectangular boss is designed at the connecting end of the tooling support frame 1 and the reflector adapter 6 at the corner position. The adjustment screw c11 passes through the reflector adapter 6 and is pressed onto the boss of the tooling support frame 1. The horizontal position of the reflector assembly 7 is adjusted by adjusting the pressing amount of the screw c11, and the angle 4-3 between the reflector 7-3 and the plane mirror is adjusted by adjusting the screw b7-6.

[0038] The testing method of the structure for testing the inclination rotation error of the rotating device comprises the following steps:

[0039] Step 1: Use the micrometer 3 to test the perpendicularity of the plane mirror 4-3 and the axis of the measured shaft 8. Place the contact of the micrometer 3 in vertical contact with the edge of the plane mirror 4-3, rotate the bezel of the micrometer 3 to align the zero mark on the dial with the pointer, rotate the measured shaft 8 90° clockwise, read the runout of the micrometer 3, adjust the adjustment screw a4-3 closest to the contact to press the end face of the measured shaft 8 until the runout of the micrometer 3 becomes half of the original runout, read the pointer of the micrometer 3 to zero, rotate the measured shaft 8 90° clockwise again, read the runout of the micrometer 3, adjust the adjustment screw a4-6 closest to the contact again, and repeat the above process until the runout of the micrometer 3 at the four positions of 0°, 90°, 180°, and 270° are all zero, and the plane mirror 4-3 is perpendicular to the axis of the measured shaft 8.

[0040] Step 2: Adjust the center of the reflector 7-3 to be directly below the center of the plane mirror 4-3 by adjusting the reflector adapter 6, and then fine-tune the angle position of the reflector assembly 7 by adjusting the screw b7-6;

[0041] Step 3: The light projected by the light tube 10 is reflected by the reflector 7-3 and then incident on the plane mirror 4-3. By adjusting the adjusting screw b7-6, the light of the light tube 10 is reflected to the center of the plane mirror 4-3. The reading of the light tube 10 is set to zero, and the measured axis 8 is rotated 180° to obtain the two readings of the light tube 10X and Y. First, the adjusting screw c11 is adjusted to control the readings of X and Y within 200, and then the adjusting screw b7-6 of the reflector assembly 7 is adjusted to make the two readings of X and Y become half of the original readings, and the readings of the light tube 10X and Y are set to zero, and then the measured axis 8 is rotated 180°, and the above operation is repeated until the readings of the light tube 10X and Y at the two positions are both zero, so that the light of the light tube 10 is reflected to the center of the plane mirror 4-3.

[0042] Step 4: Rotate the measured shaft 8 clockwise for one circle at 10° intervals to obtain 36 sets of data, and calculate the inclination rotation error of the equipment.

[0043] Record the horizontal coordinate reading Wxi and the vertical coordinate reading Wyi of the light tube at each corresponding angular position of the measured shaft 8. Data processing:

[0044] a. Fourier Analysis

[0045] The periodic function

[0046]

[0047] Where: i = 1, 2, ..., 36;

[0048] k is the harmonic order;

[0049] The Fourier coefficient of the zeroth and first order terms is a x0 、a y0 and a x1 、b x1 、a y1 、b y1 ,unit:(").

[0050]

[0051]

[0052]

[0053]

[0054]

[0055]

[0056] b. Deduct installation error

[0057] Deduct the zeroth and first harmonic components caused by the zero position of the optical tube and the non-perpendicular installation of the plane mirror and the axis from the Fourier series to obtain the two orthogonal components of the inclination rotation error ΔW xi , ΔW yi

[0058] ΔW xi =W xi -a x0 -a xi cosθ-b xi sinθ

[0059] ΔW yi =W yi -a yo -ayi cosθ-b yi sinθ

[0060] c. Calculation of inclination rotation error:

[0061]

[0062] ∴The inclination rotation error is:

[0063] W=±{W i} max

[0064] Embodiment 2:

[0065] like Figure 1 After the turntable azimuth assembly is installed, the base space is limited and the light tube cannot be used directly. The plane mirror assembly 4 can be installed on the shaft end of the azimuth axis 8, the tooling support frame 1 can be installed on the turntable base, and the micrometer 3 can be installed on the tooling support frame 1. The contact of the micrometer lightly touches the edge of the plane mirror 4-3, and the azimuth axis 8 is rotated to measure the verticality of the plane mirror 4-3 and the azimuth axis 8.

[0066] The plane mirror assembly 4 includes: a plane mirror seat 4-1, a plane mirror 4-3, a plane mirror cover 4-2, a clamping screw a4-4, a mounting screw a4-5 and an adjusting screw a4-6. The plane mirror cover 4-2 fixes the plane mirror 4-3 on the plane mirror seat 4-1 through the clamping screw a4-4. The plane mirror seat 4-1 has four evenly distributed threaded holes for installing the adjusting screws a4-6. The adjusting screws a4-6 pass through the plane mirror seat 4-1 and are clamped on the end face of the measured shaft 8. The angle position of the plane mirror 4-3 is fine-tuned by the degree of clamping of the four adjusting screws a4-6.

[0067] Make the contact of micrometer 3 touch the edge of plane mirror 4-3 vertically, turn the bezel of micrometer 3 to align the zero mark on the dial with the pointer, turn the azimuth axis 8 90° clockwise, read the runout of micrometer 3, adjust the adjusting screw a4-6 closest to the contact to press the end face of measured axis 8 until the runout of micrometer 3 becomes half of the original runout, turn the bezel of micrometer 3 to read the pointer of micrometer 3 to zero, turn the measured axis 8 90° again, read the runout of micrometer 3, adjust the adjusting screw a4-6 closest to the contact, repeat the above process until the runout of micrometer 3 is zero at four positions, the perpendicularity between plane mirror 4-3 and the axis of measured axis 8 meets the requirement, and micrometer 3 can be removed.

[0068] The reflector assembly 7 is installed on the reflector adapter 6, and then the whole is installed on the tooling support frame 1. The reflector adapter 6 is designed with a long hole, which can adjust the horizontal position of the reflector assembly 7. The reflector adapter 6 is adjusted through the long hole to make the center of the reflector 7-3 directly below the center of the plane mirror 4-3. After the reflector assembly 7 is installed, the reflector 7-3 forms an angle of 45° with the ground. The reflector adapter 6 is designed with threaded holes for installing two adjustment screws C11. The front end of the tooling support frame 1 is designed with a rectangular boss. The adjustment screw C11 is screwed into the reflector adapter 6 and pressed onto the boss of the tooling support frame 1. The horizontal position of the reflector assembly 7 is fine-tuned by adjusting the pressing amount of the screw B7-6, and the angle 4-3 between the reflector 7-3 and the plane mirror is fine-tuned by adjusting the adjustment screw B7-6.

[0069] The reflector assembly 7 comprises a reflector seat 7-1, a reflector 7-3, a reflector cover 7-2, a clamping screw b7-7, a mounting screw b7-5 and an adjusting screw b7-6. The reflector cover 7-2 mounts the reflector 7-3 on the reflector seat 7-1 through the clamping screw b7-7. The reflector seat 7-1 has four evenly distributed threaded holes for mounting the adjusting screws b7-6. The angle between the reflector 7-3 and the plane mirror 4-3 can be fine-tuned by adjusting the degree to which the four adjusting screws b7-6 clamp the reflector adapter 6.

[0070] A visual window 9 is designed on the turntable support frame, and the light tube 10 is installed at a fixed position outside the equipment. The light of the light tube 10 is reflected by the reflector 7-3 and then incident on the plane mirror 4-3. The reading of the light tube 10 is set to zero, and the measured axis 8 is rotated 180° to obtain the two readings of the light tube 10X and Y. First, adjust the adjustment screw c11 to control the X and Y readings within 200, and then adjust the adjustment screw b7-6 of the reflector assembly 7 to make the X and Y readings become half of the original readings, and set the readings of the light tube 10X and Y to zero, and then rotate the measured axis 8 180°, and repeat the above operation until the readings of the light tube 10X and Y at the two positions are both zero, so that the light of the light tube 10 is reflected to the center of the plane mirror 4-3.

[0071] The measured shaft 8 is rotated clockwise at 10° intervals for one circle to obtain 36 groups of numbers, and the inclination rotation error can be obtained by calculation.

[0072] Embodiment 3:

[0073] Some axis systems of the turntable can only measure the inclination rotation error during the assembly process, such as Fig. 9 , Fig.10 As shown, after the load of the turntable is installed, the light tube cannot be installed inside, and the wiring and other work have been completed at the outer end of the shaft system, so the plane mirror cannot be installed at the outer end of the shaft system. In this case, this method can be used to measure the inclination rotation error of the axis.

[0074] This method has the advantage of small structure volume, and the tooling support frame 1 can be installed on Fig. 9 In the position shown, the plane mirror assembly 4 is installed at the shaft end inside the shaft system, the micrometer 3 is installed on the tool support frame 1, the contact of the micrometer 3 is vertically contacted with the edge position of the plane mirror 4-3, and the plane mirror 4-3 is adjusted to be vertical with the pitch axis according to the method of Example 1. The micrometer 3 is removed, and then the reflector assembly 7 is installed on the reflector adapter 6, and then the whole is installed on the tool support frame 1 through the screw 11. The light pipe is installed outside the turntable, in the direction perpendicular to the axis system of the measured axis, and the light emitted by the light pipe 10 is projected onto the plane mirror after a first reflection of the reflector 7-3. Then, the method in Example 1 is used to adjust the reflector adapter 6 and the reflector assembly 7 to project the light emitted by the light pipe to the center of the plane mirror 4-3. The reading and calculation of the light pipe 10 can realize the measurement of the rotation error of the measured axis inclination.

Claims

1. A structure for testing the inclination rotation error of a rotating device, characterized in that: The invention comprises a plane mirror assembly (4), a micrometer (3), a tool support frame (1), a reflector adapter (6), an adjustment screw c (11), a reflector assembly (7) and a light pipe (10); the plane mirror assembly (4) is mounted on the shaft end of a shaft (8) to be measured, the tool support frame (1) is mounted on a support frame of a rotary device, and the micrometer (3) is mounted on the tool support frame (1). The micrometer (3) is used to measure the verticality of a plane mirror (4-3) of the plane mirror assembly (4) and the axis of the shaft (8) to be measured, and the verticality is adjusted by adjusting the adjustment screw a ( 4-6) After adjusting the plane mirror (4-3) to be perpendicular to the axis of the measured shaft (8), the micrometer (3) is removed; the reflector assembly (7) is mounted on the reflector adapter (6), and then the whole is mounted on the tooling support frame (1); the tooling support frame (1) is mounted on the rotary equipment support frame by means of the tooling support frame mounting screws (2); a visual window (9) is designed on the opposite side of the rotary equipment support frame where the tooling support frame (1) is mounted, and the light projected by the light tube (10) is irradiated onto the reflector (7-3) of the reflector assembly (7) through the visual window (9); The plane mirror assembly (4) further comprises a plane mirror pressure cover (4-2), a clamping screw a (4-4), and an adjustment screw a (4-6); the plane mirror seat (4-1) is designed with a positioning stop for the measured axis (8); the plane mirror pressure cover (4-2) fixes the plane mirror (4-3) on the plane mirror seat (4-1) through the clamping screw a (4-4); the plane mirror seat (4-1) has four evenly distributed threaded holes for installing the adjustment screws a (4-6); the plane mirror seat (4-1) adjusts the angular position of the plane mirror (4-3) through the four adjustment screws a (4-6); The reflector assembly (7) comprises a reflector seat (7-1), a reflector (7-3), a reflector pressure cover (7-2), a clamping screw b (7-4), a mounting screw b (7-5) and an adjustment screw b (7-6); the reflector assembly (7) is fixedly mounted on the reflector adapter seat (6) by means of the mounting screw b (7-5); the reflector pressure cover (7-2) fixes the reflector (7-3) on the reflector seat (7-1) by means of the clamping screw b (7-4); the reflector seat (7-1) is provided with four evenly distributed threaded holes for mounting the adjustment screws b (7-6); the angle position of the reflector (7-3) is adjusted by means of the four adjustment screws b (7-6); The reflector adapter (6) is a "∠"-shaped structure with an angle of 45°. A long hole is designed at the connection position with the tool support frame (1), so that the position of the reflector assembly (7) in the horizontal direction can be adjusted. The center of the reflector (7-3) is adjusted to the position directly below the center of the plane mirror (4-3) by adjusting the screw c (11). The reflector (7-3) forms an angle of 45° with the ground. A threaded hole is designed at the corner position of the reflector adapter (6) for installing the adjusting screw c (11). A rectangular boss is designed at the connection end of the tool support frame (1) and the reflector adapter (6) at the corner position. The adjusting screw c (11) passes through the reflector adapter (6) and is pressed onto the boss of the tool support frame (1). The position of the reflector assembly (7) in the horizontal direction is adjusted by adjusting the amount of pressing of the screw c (11). The angle between the reflector (7-3) and the plane mirror (4-3) is finely adjusted by adjusting the screw b (7-6).

2. The structure for testing the inclination rotation error of the rotating equipment according to claim 1 is characterized in that: The light projected by the light pipe (10) is at the same height as the center of the reflector (7-3).

3. The method for testing a structure for testing an inclination rotation error of a rotating device according to claim 1 or 2, characterized in that: Step 1: Use a micrometer (3) to test the verticality of the plane mirror (4-3) and the axis of the measured shaft (8), and adjust the mirror surface of the plane mirror (4-3) and the axis of the measured shaft (8) to be vertical by adjusting the adjustment screw a (4-6); Step 2: The reflector adapter (6) adjusts the center of the reflector (7-3) to be directly below the center of the plane mirror (4-3) by adjusting the screw c (11); Step 3: The light projected by the light pipe (10) is reflected by the reflector (7-3) and then incident on the plane mirror (4-3). By adjusting the adjustment screw b (7-6), the light of the light pipe (10) is reflected to the center of the plane mirror (4-3); Step 4: Rotate the measured shaft (8) in a clockwise direction at 10° intervals for one circle to obtain 36 sets of data, and calculate the inclination rotation error of the equipment.

4. The method for testing the structure of the tilt rotation error of the rotating device according to claim 3, characterized in that: Method for testing the perpendicularity between the plane mirror (4-3) and the axis of the measured shaft (8) by using a micrometer (3): place the contact of the micrometer (3) vertically in contact with the edge of the plane mirror (4-3), rotate the bezel of the micrometer (3) to align the zero mark on the dial with the pointer, rotate the measured shaft (8) 90° clockwise, read the runout of the micrometer (3), and adjust the adjustment screw a (4-6) closest to the contact to press the end face of the measured shaft (8) to the micrometer. When the runout of the dial gauge (3) becomes half of the original runout, adjust the pointer of the micrometer (3) back to zero, rotate the measured shaft (8) 90° clockwise, read the runout of the micrometer (3), adjust the adjustment screw a (4-6) closest to the contact again, and repeat the above process until the runout of the micrometer (3) is zero at the four positions of 0°, 90°, 180°, and 270°, and the plane mirror (4-3) is perpendicular to the axis of the measured shaft (8).

5. The method for testing the structure of the tilt rotation error of the rotating device according to claim 3, characterized in that: The specific operation method of step 3 is as follows: the reading of the light tube (10) is set to zero, the measured axis (8) is rotated 180°, and the X and Y readings of the light tube (10) are obtained. The adjusting screw c (11) is first adjusted to control the X and Y readings within 200, and then the adjusting screw b (7-6) of the reflector assembly (7) is adjusted to make the X and Y readings become half of the original readings, and the X and Y readings of the light tube (10) are set to zero, and then the measured axis (8) is rotated 180°, and the above operation is repeated until the X and Y readings of the light tube (10) at the two positions are both zero, so that the light of the light tube (10) is reflected to the center of the plane mirror (4-3).

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