A parallelism inspection tool and inspection method for parallel rotating shafts

Abstract

This invention discloses a parallelism gauge and measurement method for parallel rotating shafts, comprising: a split-type crossbeam and a reference plate, the reference plate being placed on one side of the crossbeam during measurement; a first gauge holder, an angle support, a second gauge holder, and a V-support being arranged on one side of the crossbeam; the first gauge holder having a vertical first measuring gauge, the angle support having a horizontal second measuring gauge, and the second gauge holder having a vertical third measuring gauge; the angle support and the V-support having supports for rigid contact with the rotating shaft under test and the reference rotating shaft, respectively. This invention uses one of the rotating shafts as the reference rotating shaft and a 000 plate parallel to and approximately equidistant from the measured and reference rotating shafts as the reference surface, maintaining four contact points in contact with the surfaces of the reference and measured rotating shafts to calculate the parallelism between the two rotating shafts. This invention features simple testing tools, a simple measurement method, and high measurement accuracy.

Description

Technical Field

[0001] The invention discloses a parallelism inspection tool and an inspection method for parallel rotating shafts, and relates to the technical field of mechanical equipment inspection. Background Art

[0002] The diamond wire cutting machine is a special machine tool that uses a special diamond cutting wire to cut and slice single crystal bars such as single crystal silicon. The machine tool is usually equipped with 2 or 4 parallel rotating spindles, and the cutting wires with a diameter of ≤0.07mm and a number of thousands (currently usually 2000-4000) are wound on the spindles at equal intervals. The spindle drives the cutting wire to rotate forward and reverse at high speed (the current maximum line speed has reached about 35m / s), thereby realizing the cutting of single crystal bars. The thickness of the cutting blade formed by cutting is usually less than 0.2mm. In order to ensure the quality of the cutting blade and the service life of the diamond cutting wire and control the wire breakage rate, it is necessary to control the parallelism between the spindles to the maximum extent, and improve the uniform and constant force of each cutting wire during high-speed reciprocating motion. Because at such a high speed, wire breakage will cause local damage to the cut wafers and bars at the least, and evenly scrap the entire thing at the worst. In addition, in order to reduce losses, it is also necessary to implement shutdown wiring, thereby further reducing production efficiency. Therefore, the parallelism between the spindles is one of the key parameters that must be strictly controlled, continuously improved and improved for this machine tool.

[0003] The volume of the diamond wire cutting machine is usually 25m 3 The above weighs more than 15 tons and is a medium-to-large special-purpose equipment. The spindle is a freely rotating body with no fixed radial position, so it is impossible to build a fixed measurement reference benchmark by itself. If a benchmark is created on the machine tool bed, it will not only increase the processing cost, but also because of the large span, the benchmark volume will be large and the structure will be complex to ensure the benchmark accuracy. At the same time, there will be problems such as benchmark error and the benchmark must adapt to changes in the machine tool.

[0004] At present, the parallelism detection of rotating spindles in the industry usually adopts large-scale three-coordinate measuring machines, which is bound to have two problems: 1. There are very few manufacturers of this special machine tool in China, and most of them are privately-owned and small in scale. They lack such large-scale three-coordinate equipment, and the utilization rate is very low just for this parameter, which is not worth the loss; 2. The number of such large three-coordinate measuring machines in China is limited and difficult to find. Even if they are found, they may not be able to provide detection services due to various factors. Even if they can provide detection services, the cost of detection + transportation is high. Therefore, the detection and control of the parallelism of the rotating spindle of this special machine tool in the current market is costly, difficult to implement, and has limited qualification guarantee. Therefore, there is an urgent need for a low-cost and easy-to-operate parallelism inspection tool and detection method for parallel rotating shafts. Summary of the invention

[0005] In view of the defects in the above-mentioned background technology, the present invention provides a parallelism inspection tool and inspection method for parallel rotating shafts, which has a simple structure, is easy to operate and can realize rapid inspection.

[0006] To achieve the above-mentioned purpose, the technical solution adopted by the present invention is as follows: a parallelism inspection tool for parallel rotating shafts, comprising: a split-type crossbeam and a reference plate, wherein the reference plate is placed on one side of the crossbeam during measurement, and the reference plate is arranged approximately equidistantly (vertically) on one side of the rotating shaft to be measured and the reference rotating shaft, and is approximately parallel to the rotating shaft to be measured and the reference rotating shaft;

[0007] The crossbeam is a beam with a rectangular cross-section, and a first meter frame, an angle support, a second meter frame and a V-support are sequentially arranged on one side of the crossbeam through uniform assembly holes and positioning pin holes. One side of the angle support is used to place the measured rotating shaft, and one side of the V-support is used to place the reference rotating shaft; the first meter frame is provided with a vertical first measuring meter, the angle support is provided with a horizontal second measuring meter, and the second meter frame is provided with a vertical third measuring meter; the angle support and the V-support are respectively provided with support bodies for rigidly contacting the measured rotating shaft and the reference rotating shaft.

[0008] During measurement, the measured rotating shaft and the reference rotating shaft are placed between the crossbeam and the reference plate, the measuring rods of the first and third measuring tables are in contact with the reference plate, the angle support and the measuring rod of the second measuring table are in contact with the measured rotating shaft, and the V support is in contact with the reference rotating shaft.

[0009] Furthermore, the first and second meter frames are inverted T-shaped structural members, whose upper end faces are connected to the crossbeam, and front and rear symmetrical step surfaces of the lower end faces are provided with front and rear symmetrical V-shaped vertical grooves and assembly holes, and the V-shaped vertical grooves on both sides are used to connect the measuring meter, and a weight reduction hole is provided in the middle part of the meter frame. The measuring meter can be installed by selecting the front and rear symmetrical V-shaped vertical grooves according to the actual measurement situation.

[0010] Furthermore, the angle support adopts a 90-degree right angle, including a supporting part and a table frame part vertically connected thereto, the upper part of the supporting part is connected to the crossbeam, and the side end face of the supporting part is connected to the supporting body; V-shaped horizontal grooves and assembly holes are symmetrically arranged on the front and rear ends of the end of the table frame part; the V-shaped horizontal groove is used to connect the measuring meter, and the measuring meter can be installed according to the actual measurement situation by selecting the front and rear symmetrical V-shaped horizontal grooves, and the supporting body on the angle support and the measured rotating shaft form a supporting contact.

[0011] Pressure plate assembly holes are arranged on both sides of the V-shaped vertical groove and the V-shaped horizontal groove. The measuring rod of the measuring meter is arranged in the groove body and is fixed by the pressure plate.

[0012] The front and rear symmetrical V-shaped vertical grooves and assembly holes of the first and second meter frames and the front and rear symmetrical V-shaped horizontal grooves and assembly holes of the corner support described in the present invention eliminate the front and rear directionality of the installation of the measuring meter and the front and rear directionality of the inspection of the inspection fixture. While improving the flexibility of the inspection fixture application, the measuring meters can even be installed on both sides at the same time to perform two-way measurement, measure two sets of data, and improve the accuracy of the measurement.

[0013] Furthermore, the V-support is an isosceles trapezoidal structural member with a lower groove, including a top surface, isosceles V-sides on both sides and a lower groove avoidance, the top surface is arranged to be connected to the crossbeam, and the end surfaces of the isosceles V-sides on both sides are connected to the support body through the support body assembly holes, two support bodies are arranged on one side, and one support body is arranged on the other side; the three support bodies form three contact points with the reference rotating shaft, and the surface formed by the three points coincides with the axial surface of the reference rotating shaft.

[0014] Furthermore, the support body is a single multi-step stepped shaft, including a first cylinder, a limiting cylinder and a stud connected in sequence, the diameters of the first cylinder, the limiting cylinder and the stud decrease in sequence, a symmetrical flat square is arranged on the limiting cylinder, the first cylinder is used for rigid contact with the measured rotating shaft and the reference rotating shaft, the cylindrical surface of the first cylinder is axially perpendicular to the surface of the measured rotating shaft to form a point contact, and the support body is fixed to the angle support and the V support by the stud.

[0015] Furthermore, the first cylinder is coaxially connected to the bearing, and the bearing is used to make rigid contact with the measured rotating shaft and the reference rotating shaft. The support body is fixed to the angle support and the V support by studs. The first cylinder of the support body is replaced by the bearing, and the sliding of the inspection fixture assembly is converted into rolling, thereby improving the flexibility of the inspection fixture movement and reducing the movement resistance.

[0016] Furthermore, the reference plate is a 000-grade plate, and the first measuring gauge, the second measuring gauge and the third measuring gauge are all micrometers.

[0017] A method for detecting the parallelism of parallel rotating shafts comprises the following steps:

[0018] Place the reference plate under the two rotating shafts, and place them approximately equidistant from the two rotating shafts. Set one of the rotating shafts as the measured rotating shaft and the other as the reference rotating shaft.

[0019] Place the crossbeam above the two rotating shafts, wherein the support body on the angle support is in rigid contact with the surface of the rotating shaft to be measured, the support body on the V support is in rigid contact with the surface of the reference rotating shaft, and the measuring rods of the first measuring table and the third measuring table are in vertical contact with the reference plate, and the measuring rod of the second measuring table is in horizontal contact with the rotating shaft to be measured;

[0020] Slide the crossbeam along the starting end to the end of the rotating shaft, measure the horizontal and vertical changes of the measured rotating shaft relative to the reference rotating shaft, and calculate the parallelism value Φt of the two rotating shafts by the Pythagorean theorem.

[0021] Furthermore, the specific calculation method of the parallelism Φt includes the following steps:

[0022] Parallelism

[0023] Among them: △X is the horizontal change value, △Y is the vertical change value;

[0024] Calculation of horizontal change value △X:

[0025] Horizontal change value △X=X 0S -X 0T

[0026] Where: X 0S is the starting value of the second measurement table, X 0T is the end value of the second measurement table;

[0027] Calculation of vertical change value △Y:

[0028] △Y=(△Y C -△Y0)×K

[0029] Where: △Y C is the variation value of the first measurement table from the beginning to the end, △Y0 is the variation value of the third measurement table from the beginning to the end, and K is the correction coefficient;

[0030] △Y C =Y CS +Y CT -2Ycmin

[0031] Where: Y CS is the starting value of the first measurement table, Y CT is the end value of the first measurement table, and Ycmin is the minimum value of the first measurement table;

[0032] △Y0==Y 0S +Y 0T -2Y0min

[0033] Where: Y 0S is the starting value of the third measurement table, Y 0T is the end value of the third measurement table, and Y0min is the minimum value of the third measurement table;

[0034] K=S T / S0

[0035] Where: S0 is the center line distance between the first measuring table and the third measuring table, S T It is the wheelbase between the measured axis and the reference axis.

[0036] When measuring with the present invention, when the shaft diameters of the parallel shafts are different, it is only necessary to adjust and change the installation position of the micrometer of the angle bracket to be approximately at the same height as the axis; and when the shaft diameters are the same and the spacing between the parallel shafts varies within a small range, the same compatible inspection fixture can be used as long as the parallel shafts do not interfere with the meter bracket. If the spacing varies within a large range, it is only necessary to adjust and change the spacing of the meter bracket on the beam or change the length of the beam.

[0037] The 000-level plate of the present invention only needs to be placed approximately parallel and equidistant to the reference rotating shaft and the rotating shaft to be measured, and the installation position of the micrometer in the direction parallel to the plate surface only needs to be approximately at the same height as the axis. There is no need for precise debugging requirements such as reference alignment and multi-point zeroing. During the test, as long as the inspection fixture moves the rigid body smoothly from one end to the other, the end values ​​and the minimum value of the three micrometers can be recorded.

[0038] Working principle: The present invention takes one of the rotating shafts as the reference rotating shaft, and takes a 000-level flat plate which is parallel to the measured rotating shaft and the reference rotating shaft and approximately equidistant as the reference plane. The four contact points are always kept in contact with the reference axis plane and the measured rotating shaft plane. The inspection fixture assembly is moved from one end of the rotating shaft to the other end, and the change values ​​of the other rotating shafts relative to the reference rotating shaft in the horizontal and vertical (i.e., X and Y) directions are measured. The parallelism of the rotating shaft is obtained by calculating the Pythagorean theorem and correcting the system error.

[0039] Beneficial effects: 1. The inspection tool of the present invention has a simple structure, low manufacturing cost, high detection accuracy, few influencing factors and good reliability.

[0040] 2. The present invention can quickly detect the parallelism of the rotating spindle without the need for or reliance on other detection equipment. It is suitable for real-time detection at the production site and is simple to debug. The detection process has no requirements for the environment, location, flipping, and transportation. It has strong practicality and wide adaptability. BRIEF DESCRIPTION OF THE DRAWINGS

[0041] Figure 1 It is a structural schematic diagram of the present invention;

[0042] Figure 2 It is a structural schematic diagram of the crossbeam of the present invention;

[0043] Figure 3 It is a structural schematic diagram of the table frame of the present invention;

[0044] Figure 4 It is a structural schematic diagram of the corner support of the present invention;

[0045] Figure 5 It is a structural schematic diagram of the V support of the present invention;

[0046] Figure 6 It is a schematic diagram of the structure of the support body of the present invention;

[0047] Figure 7It is a schematic structural diagram of another support body of the present invention;

[0048] Figure 8 This is the principle diagram of parallelism of the present invention;

[0049] Fig. 9 for Figure 8 Schematic diagram of the middle M direction. DETAILED DESCRIPTION

[0050] The implementation of the technical solution is further described in detail below in conjunction with the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the present invention, and cannot be used to limit the protection scope of the present invention.

[0051] like Figures 1-2 An embodiment shown is a parallelism tester for parallel rotating shafts, comprising: a split beam 1 and a reference plate 5, wherein the reference plate 5 is placed on one side of the beam 1 during measurement, and the reference plate 5 is arranged approximately equidistantly (vertically) on one side of the measured rotating shaft A and the reference rotating shaft B, and is approximately parallel to the measured rotating shaft A and the reference rotating shaft B;

[0052] One side of the crossbeam 1 is connected in sequence to the first meter frame 21, the angle support 4, the second meter frame 22 and the V support 7 through positioning pin holes and assembly holes. One side of the angle support 4 is used to place the measured rotation axis A, and one side of the V support 7 is used to place the reference rotation axis B; the first meter frame 21 is provided with a vertical first measuring meter 31, the angle support 4 is provided with a horizontal second measuring meter 32, and the second meter frame 22 is provided with a vertical third measuring meter 33; the angle support 4 and the V support 7 are respectively provided with support bodies 8 for rigidly contacting the measured rotation axis A and the reference rotation axis B.

[0053] like Figure 3 As shown, the first and second meter frames 22 are inverted T-shaped structural members, and the upper end faces thereof are provided with assembly holes and positioning pin holes connected to the crossbeam 1, and the front and rear symmetrical steps 201 of the lower end faces are provided with front and rear symmetrical V-shaped vertical grooves 202 and pressure plate assembly holes 204, and the V-shaped vertical grooves 202 on both sides are used to connect the measuring meter, and a weight reduction hole 203 is provided in the middle part of the meter frame, and the measuring meter can be detachably installed on the step 201 through the pressure plate 6.

[0054] like Figure 4 As shown, the corner support 4 adopts a 90-degree right angle, including a support part 401 and a meter frame part 402 vertically connected thereto, an assembly hole and a positioning pin hole are arranged on the top of the support part to connect with the crossbeam 1, and an assembly hole is arranged on the side end face of the support part 401 to connect with the support body 8; V-shaped horizontal grooves 403 and pressure plate assembly holes 404 are symmetrically arranged on the front and rear faces of the end of the meter frame part; the V-shaped horizontal grooves are used to connect the measuring meter.

[0055] The V-shaped vertical groove and the V-shaped horizontal groove are provided with pressure plate assembly holes on both sides. The measuring rod of the measuring meter is set in the groove body and fixed by the pressure plate 6.

[0056] like Figure 5 As shown, the V-support 7 is an isosceles trapezoidal structural member with a lower groove, including a top surface 701, isosceles V-sides 702 on both sides and a lower groove 703 for avoiding the top surface 701. The top surface 701 is provided with assembly holes and positioning pin holes for connecting with the crossbeam 1. The end faces of the isosceles V-sides on both sides are connected with the support body 8 through the support body assembly holes, wherein two support bodies 8 are provided on one side and one support body 8 is provided on the other side.

[0057] like Figure 6 As shown, the support body 8 is a single multi-step stepped shaft, including a first cylinder 801, a limiting cylinder 802 and a stud 803 connected in sequence, the diameters of the first cylinder 801, the limiting cylinder 802 and the stud 803 decrease in sequence, a symmetrical flat square 804 is arranged on the limiting cylinder 802, the first cylinder 801 is used for rigid contact with the measured rotating shaft and the reference rotating shaft, and the support body 8 is fixed to the angle support 4 and the V support 7 by studs.

[0058] like Figure 7 As shown, the first cylinder is coaxially connected to the bearing 805, and the bearing is used for rigid contact with the measured rotating shaft and the reference rotating shaft, and the support body 8 is fixed on the angle support 4 and the V support 7 by means of studs.

[0059] The reference plate 5 is a 000-grade plate 5, and the first measuring gauge 31, the second measuring gauge 32 and the third measuring gauge 33 are all micrometers.

[0060] like Figures 8-9 As shown, a method for detecting the parallelism of parallel rotating shafts comprises the following steps:

[0061] Place the reference plate equidistantly below the two rotating shafts, and set one of the rotating shafts as the measured rotating shaft and the other as the reference rotating shaft;

[0062] Place the crossbeam above the two rotating shafts, wherein the support body on the angle support is in rigid contact with the surface of the rotating shaft to be measured, the support body on the V support is in rigid contact with the surface of the reference rotating shaft, and the measuring rods of the first measuring table and the third measuring table are in vertical contact with the reference plate, and the measuring rod of the second measuring table is in horizontal contact with the rotating shaft to be measured;

[0063] Slide the crossbeam along the starting end to the end of the rotating shaft, measure the horizontal and vertical changes of the measured rotating shaft relative to the reference rotating shaft, and calculate the parallelism value Φt of the two rotating shafts by the Pythagorean theorem.

[0064] The specific calculation method of parallelism Φt includes the following steps:

[0065] Parallelism

[0066] Among them: △X is the horizontal change value, △Y is the vertical change value;

[0067] Calculation of horizontal change value △X:

[0068] Horizontal change value △X=X 0S -X 0T

[0069] Where: X 0S is the starting value of the second measurement table, X 0T is the end value of the second measurement table;

[0070] Calculation of vertical change value △Y:

[0071] △Y=(△Y C -△Y0)×K

[0072] Where: △Y C is the variation value of the first measurement table from the beginning to the end, △Y0 is the variation value of the third measurement table from the beginning to the end, and K is the correction coefficient;

[0073] △Y C =Y CS +Y CT -2Ycmin

[0074] Where: Y CS is the starting value of the first measurement table, Y CT is the end value of the first measurement table, and Ycmin is the minimum value of the first measurement table;

[0075] △Y0==Y 0S +Y 0T -2Y0min

[0076] Where: Y 0S is the starting value of the third measurement table, Y 0T is the end value of the third measurement table, and Y0min is the minimum value of the third measurement table;

[0077] from Figure 8 The M-direction view ( Fig. 9 ) It can be concluded that the parallel line of the reference plane passes through the plane of intersection K of the reference rotating axis and the axis of the measured rotating axis, that is, the measurement section of the first measuring table and the third measuring table. When the gauge moves from the beginning to the end, the measured values ​​of the first measuring table and the third measuring table gradually decrease, reach the minimum value at the intersection K, and then gradually increase after passing the intersection K; As a result, the first measuring table and the third measuring table change the measurement direction on both sides of point K, and the measurement value on one side completely covers the measurement value on the other side. If the Y-direction variable only uses the difference between the beginning value and the end value, that is:

[0078] △Y0=Y0T -Y 0S , △Y C =Y CT -Y CS

[0079] This will eventually lead to △Y0, △Y C It is the error data of the difference between the measured data on both sides after canceling each other out; and △Y0, △Y C The actual variable value is:

[0080] △Y0=(Y 0T -Y0min)+(Y 0S -Y0min)=Y 0S +Y 0T -2Y0min

[0081] △Y C =(Y CT -Y C min)+(Y CS -Y C min)=Y CS +Y CT -2Y C min;

[0082] K=S T / S0

[0083] Where: S0 is the center line distance between the first measuring table and the third measuring table, S T is the wheelbase between the measured axis and the reference axis;

[0084] Correction coefficient K calculation:

[0085] according to Figure 8 The relationship between the medium-angle triangles is: △Y:△Y C -△Y0=S t :S C

[0086] Then △Y=S T (△Y C -△Y0) / S0

[0087] △Y=(△Y C -△Y0)×K;

[0088] The present invention applies the principle of determining a surface by three points, takes one of the rotating axes as the measured rotating axis, takes a 000-level flat plate which is parallel to the measured rotating axis and the reference rotating axis and approximately equidistant as the reference plane, measures the change values ​​of the other rotating axes in the horizontal and vertical (i.e., X and Y) directions relative to the reference rotating axis, and obtains the parallelism of the rotating axes through Pythagorean theorem calculation and system error correction.

[0089] The inspection tool of the present invention has a simple structure, low manufacturing cost, high inspection accuracy, few influencing factors, good reliability, and meets the inspection requirements of high-precision parallelism, especially the inspection with a resolution requirement of 0.001-0.01mm accuracy.

[0090] The present invention can quickly detect the parallelism of the rotating spindle without the need for or reliance on other detection equipment, is suitable for real-time detection on the production site, is simple to debug, and has no requirements on the environment, location, flipping, transportation, etc. during the detection process. It has strong practicability and wide adaptability.

[0091] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principles of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. A method for detecting the parallelism of parallel rotating shafts, characterized in that: A parallelism gauge for parallel rotating shafts is used, and the parallelism gauge comprises: a split crossbeam and a reference plate, the reference plate is placed on one side of the crossbeam during measurement, a first table frame, an angle support, a second table frame and a V support are sequentially arranged on one side of the crossbeam, one side of the angle support is used to place the rotating shaft to be measured, and one side of the V support is used to place the reference rotating shaft; a vertical first measuring table is arranged on the first table frame, a horizontal second measuring table is arranged on the angle support, and a vertical third measuring table is arranged on the second table frame; support bodies for rigidly contacting the rotating shaft to be measured and the reference rotating shaft are arranged on the angle support and the V support respectively; The detection method of the parallelism inspection tool of the parallel rotating shafts comprises the following steps: Place the reference plate under the two rotating shafts, and set one of the rotating shafts as the measured rotating shaft and the other as the reference rotating shaft; Place the crossbeam above the two rotating shafts, wherein the support body on the angle support is in rigid contact with the surface of the rotating shaft to be measured, the support body on the V support is in rigid contact with the surface of the reference rotating shaft, and the measuring rods of the first measuring table and the third measuring table are in vertical contact with the reference plate, and the measuring rod of the second measuring table is in horizontal contact with the rotating shaft to be measured; Slide the crossbeam along the starting end to the end of the rotating shaft, measure the horizontal and vertical changes of the rotating shaft relative to the reference rotating shaft, and calculate the parallelism value Φt of the two rotating shafts by the Pythagorean theorem. The specific calculation method of parallelism Φt includes the following steps: Parallelism Among them: △X is the horizontal change value, △Y is the vertical change value; Calculation of horizontal change value △X: Horizontal change value △X=X 0S -X 0T ; Where: X 0S is the starting value of the second measurement table, X 0T is the end value of the second measurement table; Calculation of vertical change value △Y: △Y=(△Y C -△Y0)×K; Where: △Y C is the variation value of the first measurement table from the beginning to the end, △Y0 is the variation value of the third measurement table from the beginning to the end, and K is the correction coefficient; △And C =And CS +Y CT -2Ycmin; Where: Y CS is the starting value of the first measurement table, Y CT is the end value of the first measurement table, and Ycmin is the minimum value of the first measurement table; △Y0=Y 0S +Y 0T -2Y0min; Where: Y 0S is the starting value of the third measurement table, Y 0T is the end value of the third measurement table, and Y0min is the minimum value of the third measurement table; K=S T / S0; Where: S0 is the center line distance between the first measuring table and the third measuring table, S T It is the wheelbase between the measured axis and the reference axis.

2. The parallelism detection method of parallel rotating shafts according to claim 1, characterized in that: The first meter frame and the second meter frame are inverted T-shaped structural members, whose upper end faces are connected to the crossbeam, and the front and rear symmetrical step surfaces of the lower end faces are provided with front and rear symmetrical V-shaped vertical grooves and assembly holes, and the V-shaped vertical grooves on both sides are used to connect the measuring meter.

3. The parallelism detection method of parallel rotating shafts according to claim 1, characterized in that: The corner support adopts a 90-degree right angle, including a support part and a meter frame part vertically connected thereto, the top of the support part is connected to the crossbeam, and the side end face of the support part is connected to the support body; the front and rear ends of the end of the meter frame part are symmetrically arranged with V-shaped horizontal grooves and assembly holes; the V-shaped horizontal groove is used to connect the measuring meter.

4. The parallelism detection method of parallel rotating shafts according to claim 1, characterized in that: The V-support is an isosceles trapezoidal structural member with a lower groove, including a top surface, isosceles V sides on both sides and a lower groove avoidance, the top surface is connected to the crossbeam, and the end faces of the isosceles V sides on both sides are connected to the support body, two support bodies are set on one side, and one support body is set on the other side.

5. The parallelism detection method of parallel rotating shafts according to claim 1, characterized in that: The support body is a single multi-step stepped shaft, including a first cylinder, a limiting cylinder and a stud connected in sequence. The diameters of the first cylinder, the limiting cylinder and the stud decrease in sequence. A symmetrical flat square is arranged on the limiting cylinder. The first cylinder is used for rigid contact with the measured rotating shaft and the reference rotating shaft. The support body is fixed to the angle support and the V support by the stud.

6. The parallelism detection method of parallel rotating shafts according to claim 5, characterized in that: The first cylinder is coaxially connected to the bearing, and the bearing is used for rigidly contacting with the measured rotating shaft and the reference rotating shaft.

7. The parallelism detection method of parallel rotating shafts according to claim 1, characterized in that: The reference plate is a 000-grade plate, and the first measuring gauge, the second measuring gauge and the third measuring gauge are all micrometers.

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