Shape and position detection device and detection and evaluation method for grid type cylindrical ground rail

Abstract

The invention discloses a shape and position detection device for a grid type cylindrical ground rail and a detection and evaluation method. The shape and position detection device comprises an axis detection assembly, a plane detection assembly, a gradienter and a measurement target, each axis detection assembly is an isosceles triangle flat plate and is placed on the transverse cylindrical ground rail or the longitudinal cylindrical ground rail through two directional inner circular grooves in the bottom of the flat plate, and the longitudinal levelness or the transverse levelness of the axis detection assembly is adjusted through a gradienter and an adjusting bolt. The straightness, parallelism and levelness of the transverse cylindrical ground rails and the longitudinal cylindrical ground rails are measured through the measuring targets; each plane detection assembly is an octagonal flat plate and is placed on the four-way piece through four positioning inner circular grooves in the bottom of the flat plate, the levelness of the four-way piece is measured through a gradienter, and the location degree of the four-way piece is measured through a measurement target in cooperation with a laser tracker. According to the invention, the shape and position detection and evaluation of the grid type cylindrical ground rail with the characteristics of low cost, high efficiency and accuracy, large size, large load and alternating load are realized.

Description

Technical Field

[0001] The present invention relates to the field of, but is not limited to, aircraft mobile assembly production technology, and in particular to a shape and position detection device and a detection and evaluation method for a grid-type cylindrical ground rail. Background Art

[0002] Numerous ground rails are laid on the floor of aircraft mobile assembly lines to facilitate the precise movement and transfer of large tooling and equipment. The geometric and positional tolerances of these rails (including single-track straightness, pair-track parallelism, and overall track levelness) significantly impact the safety, quality, and efficiency of these lines, requiring timely maintenance. These rails are large in size, subject to heavy and alternating loads, and are significantly affected by foundation settlement, making them prone to geometric and positional deviations.

[0003] Existing ground rail-type aircraft mobile assembly production lines have forms such as linear reciprocating motion, fishbone-shaped reciprocating motion, and rectangular rotary motion. The grid-type ground rails that are crisscrossed vertically and horizontally are much more complex than the above-mentioned forms, and the workload of form and position inspection is much greater; in addition, the ground rails of existing aircraft mobile assembly production lines have rectangular cross-sections, I-sections, dovetail cross-sections, etc. These cross-sections are relatively easy to level and position the inspection fixtures, while the cross-section of cylindrical ground rails is circular, which makes it difficult to level and position the inspection fixtures; in addition, existing ground rail inspection devices and methods generally include high-precision tape measure inspection, micrometer (or dial indicator) inspection, total station inspection, laser interferometer inspection, laser tracker inspection, track inspection vehicle inspection, etc. Some methods have low accuracy, high cost, and are too cumbersome.

[0004] Aiming at the shape and position detection and evaluation of grid-type cylindrical ground rails with the characteristics of large size, large load and alternating load, research on relevant detection devices and detection and evaluation methods has been carried out. Summary of the Invention

[0005] The purpose of the present invention is to achieve low-cost, efficient and accurate form and position detection and evaluation of grid-type cylindrical floor rails with large size, large load and alternating load characteristics. The embodiments of the present invention provide a form and position detection device and detection and evaluation method for grid-type cylindrical floor rails.

[0006] The technical solution of the present invention: In the first aspect, the embodiment of the present invention provides a shape and position detection device for a grid-type cylindrical ground rail, wherein the grid-type cylindrical ground rail embedded in the production line foundation 4 comprises: M (M≥2) rows of mutually parallel transverse cylindrical ground rails 1, N (N≥2) columns of mutually parallel longitudinal cylindrical ground rails 2, M*N four-way pieces 3 for connecting the transverse cylindrical ground rails 1 and the longitudinal cylindrical ground rails 2, a reference coordinate system R calibrated based on multiple coordinate system identification points 5, and a plurality of coordinate system identification points 5. oxyz ; The reference coordinate system R oxyzThe X-axis and Y-axis of the grid-type cylindrical floor rail are parallel to the axis of the transverse cylindrical floor rail 1 and the axis of the longitudinal cylindrical floor rail 2, respectively; the cross-piece 3 is provided with four inner circular grooves arranged in a centrally symmetrical manner, and adjacent inner circular grooves form a 90° angle; the shape and position detection device of the grid-type cylindrical floor rail includes: at least one axis detection component 7 and at least one plane detection component 8, as well as a level 9 and a measurement target 10;

[0007] Each of the axis detection components 7 is configured as an isosceles triangular flat plate, which is used to be placed on the transverse cylindrical ground rail 1 or the longitudinal cylindrical ground rail 2 through two directional inner circular grooves 12 coaxially arranged at both ends of the bottom side of the flat plate, and the longitudinal level or transverse level of the axis detection component 7 is adjusted by a level 9 arranged on the upper plane and an adjusting bolt 16 screwed at the top angle position, and the straightness, parallelism and horizontality of each transverse cylindrical ground rail 1 and each longitudinal cylindrical ground rail 2 are measured by a measuring target 10 provided on the axis detection component 7;

[0008] Each of the plane detection components 8 is configured as an octagonal flat plate, which is used to be placed on the four-way piece 3 through four positioning inner circular grooves 20 symmetrically arranged at the center of the bottom of the flat plate, and to measure the levelness of the four-way piece 3 by two levels 9 on its upper plane in the horizontal and vertical directions respectively, and to measure the position of the four-way piece 3 by a measuring target 10 set on the plane detection component 8 in cooperation with a laser tracker 11.

[0009] Optionally, in the above-described shape and position detection device for the grid-type cylindrical floor rail, each axis detection assembly 7 configured as an isosceles triangle flat plate is provided with: two directional inner circular grooves 12, a straight inner circular groove 13, a first adapter plane 14, a first adapter circular hole 15 and an adjusting bolt 16;

[0010] Among them, two directional inner circular grooves 12 with the same aperture are provided on the lower surface of the axis detection component 7 and are located at both ends of one side of the bottom edge of the isosceles triangle flat plate, the straight inner circular groove 13 is clamped between the two directional inner circular grooves 12, and the three inner circular grooves are coaxially arranged; the upper surface of the axis detection component 7 is the first transfer plane 14, and the first transfer plane 14 is parallel to the axis 18 of the directional inner circular groove 12; the first transfer circular hole 15 vertically passes through the axis detection component 7 and is provided in the middle of the straight inner circular groove 13, and its axis 19 is perpendicular to the axis 18 of the straight inner circular groove 13 and is perpendicular to the first transfer plane 14; the adjusting bolt 16 is screwed into the threaded hole 17 at the top corner of the axis detection component 7, and vertically passes through the axis detection component 7, and is used to extend or shorten by screwing in the threaded hole 17;

[0011] When the axis detection component 7 measures each transverse cylindrical ground rail 1 and each longitudinal cylindrical ground rail 2, it fits with a single transverse cylindrical ground rail 1 or a single longitudinal cylindrical ground rail 2 through two directional inner circular grooves 1 to form a rotation pair.

[0012] Optionally, in the above-mentioned shape and position detection device for the grid-type cylindrical floor rail,

[0013] During use of the axis detection assembly 7, the base of a level 9 used in conjunction with the axis detection assembly 7 is aligned with the first adapter plane 14; the cylindrical tail rod of the measuring target 10 of the laser tracker is inserted into the first adapter circular hole 15 thereof, and the optical reflective ball thereof is located on the first adapter plane 14;

[0014] When the axis detection assembly 7 is fitted with the transverse cylindrical ground rail 1, the level 9 is placed longitudinally on the first transfer plane 14 of the axis detection assembly 7, and measurement is performed by adjusting the axis detection assembly 7 to a longitudinally horizontal state;

[0015] When the axis detection assembly 7 is fitted with the longitudinal cylindrical rail 1 , the spirit level 9 is placed laterally on the first adapter plane 14 of the axis detection assembly 7 , and measurement is performed by adjusting the axis detection assembly 7 to a laterally horizontal state.

[0016] Optionally, in the above-mentioned shape and position detection device for the grid-type cylindrical floor rail, each plane detection component 8 configured as an octagonal flat plate is provided with: four positioning inner circular grooves 20, a second transfer plane 21 and a second transfer circular hole 22;

[0017] Among them, four positioning inner circular grooves 20 with the same aperture are arranged on the lower surface of the plane detection component 8, and are distributed in a central symmetrical manner. The axes of the four positioning inner circular grooves 20 are coplanar and the axes of two adjacent positioning inner circular grooves 20 are perpendicular. The upper surface of the plane detection component 8 is the second transfer plane 21, and the second transfer plane 21 is parallel to the axes 23 of the four positioning inner circular grooves 20. The second transfer circular hole 22 vertically passes through the plane detection component 8 and is perpendicular to the second transfer plane 21. The axis 24 of the second transfer circular hole 22 is perpendicular to the axis 23 of the four positioning inner circular grooves 20. The aperture of the first transfer circular hole 15 of the axis detection component 7 is equal to the aperture of the second transfer circular hole 21 of the plane detection component 8.

[0018] During use, the plane detection assembly 8 is in contact with the four cylindrical ground rails fixed by the four-way piece 3 through the four positioning inner circular grooves 20.

[0019] Optionally, in the above-mentioned shape and position detection device for the grid-type cylindrical floor rail,

[0020] During use of the plane detection assembly 8, the bases of the two levels 9 used in conjunction with it are respectively aligned with the second transfer plane 21 of the plane detection assembly 8 in the horizontal and vertical directions; the cylindrical tail rod of the measurement target 10 of the laser tracker is inserted into its second transfer circular hole 22, and the optical reflective ball is located on the second transfer plane 21.

[0021] In a second aspect, an embodiment of the present invention further provides a method for detecting and evaluating a grid-type cylindrical floor rail, wherein the method is performed on the grid-type cylindrical floor rail using a shape and position detection device for the grid-type cylindrical floor rail as provided in any of the above items, and specifically comprises the following steps:

[0022] Step 1: Establish the reference coordinate system R oxyz :Use laser tracker to measure all the coordinate system identification points relative to the laser tracker coordinate system L oxyz The measured coordinates of all the coordinate system identification points relative to the reference coordinate system R oxyz The calibration coordinates are matched by the least square method to establish the reference coordinate system R oxyz ;

[0023] Step 2: Construct a standard CAD model for shape and position detection: Import and assemble the reference coordinate system R in the CAD software in situ. oxyz , the three-dimensional model of the transverse cylindrical rail, the three-dimensional model of the longitudinal cylindrical rail, and the three-dimensional model of the four-way piece;

[0024] Step 3, detecting and evaluating the horizontality and position of the MN cross-pieces relative to the reference coordinate system;

[0025] Step 4: inspect and evaluate the straightness, parallelism, and horizontality of the M rows of transverse cylindrical rails 1;

[0026] Step 5: inspect and evaluate the straightness, parallelism, and horizontality of the N rows of longitudinal cylindrical rails 2;

[0027] Step 6: Evaluate the verticality of the M rows of transverse cylindrical ground rails 1 and the N columns of longitudinal cylindrical ground rails 2.

[0028] Optionally, in the above-mentioned detection and evaluation method of the grid-type cylindrical floor rail, step 3 includes:

[0029] Step 3-1, test preparation, includes: fitting at least one plane test component to the two transverse cylindrical rails 1 and two longitudinal cylindrical rails 2 fixed by the four-way piece 3 in the i-th (1≤i≤M)th row and j-th (1≤i≤N)th column of the cylindrical rail through the four positioning inner circular grooves;

[0030] Step 3-2, detecting the horizontality of the i-th row and j-th column of the cylindrical rail, including: two levels 9 are set in the second transfer plane 21 of each plane detection component 8 in the horizontal direction and the vertical direction respectively, to measure the horizontal tilt angle of each plane detection component 8 and the corresponding four-way component 3 and longitudinal tilt angle

[0031] Step 3-3, evaluate the horizontality of the cross-piece set at the i-th row and j-th column position on the cylindrical rail: when the lateral inclination angle measured in step 3-2 is and the longitudinal inclination angle If all levels are within the allowable range, the levelness of the tested cross-piece is considered qualified;

[0032] Step 3-4, detecting the position of the four-way piece in the i-th row and j-th column of the cylindrical ground rail, including: inserting a measurement target 10 into the second adapter hole 22 of each plane detection component 8, and measuring the three-dimensional coordinates of the measurement target 10 relative to the reference coordinate system by a laser tracker

[0033]

[0034] Step 3-5, evaluate the position of the four-way piece set at the position of the i-th row and the j-th column in the cylindrical rail: when the three-dimensional coordinates measured in step 3-4 are Each coordinate value in is within the position accuracy range allowed by the standard CAD model, and the position accuracy of the measured four-way component is judged to be qualified.

[0035] Optionally, in the above-mentioned detection and evaluation method of the grid-type cylindrical floor rail, step 4 includes:

[0036] Step 4-1, inspection preparation, includes: setting P inspection points on the i-th row of transverse cylindrical rails 1, aligning the axis detection assembly 7 with the k-th inspection point on the i-th row of transverse cylindrical rails 1 through its two directional inner circular grooves 12 (1≤i≤P), and placing a level 9 on the first adapter plane 14 of the axis detection assembly 7 along the longitudinal direction. By rotating the feed amount of the adjusting bolt 16 in the axis detection assembly 7, the level 9 and the axis detection assembly are in a longitudinally horizontal state;

[0037] Step 4-2, detecting the coordinates of the k-th detection point of the i-th row of transverse cylindrical rails 1, including: inserting the measurement target 10 into the first adapter hole 15 of the axis detection assembly 7 at the k-th detection point on the i-th row of transverse cylindrical rails 1, and measuring the three-dimensional coordinates of the measurement target 10 relative to the reference coordinate system by the laser tracker 11

[0038] Step 4-3, evaluating the straightness of the i-th row of transverse cylindrical rails 1, includes: when the three-dimensional coordinates of P detection points on the i-th row of transverse cylindrical rails 1 If each coordinate value in is within the straightness range allowed by the standard CAD model, the straightness of the i-th row of transverse cylindrical rails 1 is judged to be qualified;

[0039] Step 4-4, evaluating the parallelism of M rows of transverse cylindrical rails 1, including: when the three-dimensional coordinates of M*P detection points in all transverse cylindrical rails 1 If each coordinate value in is within the flatness range allowed by the standard CAD model, the parallelism of the M rows of transverse cylindrical rails 1 is judged to be qualified;

[0040] Step 4-5, evaluating the horizontality of M rows of transverse cylindrical rails 1, including: when the three-dimensional coordinates of M*P detection points in all transverse cylindrical rails 1 If each coordinate value in is within the horizontality range allowed by the standard CAD model, then the horizontality of the M rows of transverse cylindrical rails 1 is judged to be qualified.

[0041] Optionally, in the above-mentioned method for detecting and evaluating the grid-type cylindrical floor rail, step 5 includes:

[0042] Step 5-1, test preparation, includes: setting Q test points on the j-th column of longitudinal cylindrical rails 2, aligning the axis detection assembly 7 with the l-th test point on the j-th row of longitudinal cylindrical rails 2 through its two directional inner circular grooves 12 (1≤l≤Q), and placing a level 9 in the horizontal direction on the first adapter plane 14 of the axis detection assembly 7. By rotating the feed amount of the adjusting bolt 16 in the axis detection assembly 7, the level 9 and the axis detection assembly are in a horizontal state;

[0043] Step 5-2, detecting the coordinates of the j-th column longitudinal cylindrical rail 2 at the l-th detection point, including: inserting the measurement target 10 into the first adapter hole 15 of the axis detection component 7 at the l-th detection point on the j-th column longitudinal cylindrical rail 2, and measuring the three-dimensional coordinates of the measurement target 10 relative to the reference coordinate system by the laser tracker 11

[0044] Step 5-3, evaluating the straightness of the j-th column longitudinal cylindrical rail 2, includes: when the three-dimensional coordinates of Q detection points on the j-th column longitudinal cylindrical rail 2 If each coordinate value in is within the straightness range allowed by the standard CAD model, the straightness of the j-th column longitudinal cylindrical rail 2 is judged to be qualified;

[0045] Step 5-4, evaluating the parallelism of N rows of longitudinal cylindrical rails 2, includes: when the three-dimensional coordinates of N*Q detection points in all longitudinal cylindrical rails 2 If each coordinate value in is within the flatness range allowed by the standard CAD model, the parallelism of the N rows of longitudinal cylindrical rails 2 is judged to be qualified;

[0046] Step 5-5, evaluating the horizontality of N rows of longitudinal cylindrical rails 2, including: when the three-dimensional coordinates of N*Q detection points in all longitudinal cylindrical rails 2 If each coordinate value in is within the horizontality range allowed by the standard CAD model, it is judged that the horizontality of the N rows of longitudinal cylindrical rails 2 is qualified.

[0047] Optionally, in the above-mentioned method for detecting and evaluating the grid-type cylindrical floor rail, step 6 includes:

[0048] When the three-dimensional coordinates of P detection points in each row of horizontal cylindrical rails 1 and the three-dimensional coordinates of Q detection points in each longitudinal cylindrical rail 2 If each coordinate value in is within the verticality range allowed by the standard CAD model, it is determined that the verticality of the M rows of transverse cylindrical ground rails 1 and the N columns of longitudinal cylindrical ground rails 2 is qualified.

[0049] Beneficial Effects of the Invention: The present invention provides a form and position detection device and detection and evaluation method for a grid-type cylindrical floor rail. Based on the structural form of the grid-type cylindrical floor rail in the production line foundation 4, the form and position detection device for the grid-type cylindrical floor rail includes: at least one axis detection component 7 and at least one plane detection component 8, as well as a level 9 and a measurement target 10. The axis detection component 7, configured as an isosceles triangle flat plate, is used to measure the straightness, parallelism, and horizontality of each transverse cylindrical floor rail 1 and each longitudinal cylindrical floor rail 2; the plane detection component 8, configured as an octagonal flat plate, is used to measure the position of the four-way component 3. Compared with the prior art, the technical solution provided by the present invention has the following significant benefits:

[0050] (1) The types of form and position detection for large heavy-load grid-type cylindrical rails have been unified. The existing rail straightness detection based on interferometer, rail parallelism detection based on micrometer, and rail levelness detection based on total station have been unified into coordinate detection based on reference coordinate system and laser tracker.

[0051] (2) The accuracy of form and position detection of large, heavy-load grid-type cylindrical rails is improved. Compared with the existing overall detection method based on the superposition of multiple local detections, the method of the present invention is an absolute overall detection method, which reduces a large amount of data transmission errors.

[0052] (3) The efficiency of shape and position detection of large heavy-load grid-type cylindrical rails is improved. The shape and position detection device of the present invention has fewer steps for installation and adjustment, is easy and convenient to operate, and is easy to save data. BRIEF DESCRIPTION OF THE DRAWINGS

[0053] The accompanying drawings are used to provide a further understanding of the technical solution of the present invention and constitute a part of the specification. Together with the embodiments of the present application, they are used to explain the technical solution of the present invention and do not constitute a limitation on the technical solution of the present invention.

[0054] Figure 1 Schematic diagram of the overall structure of the grid-type cylindrical ground rail of the aircraft mobile assembly production line according to an embodiment of the present invention;

[0055] Figure 2 for Figure 1 A partial enlarged schematic diagram of the transverse cylindrical ground rail, longitudinal cylindrical ground rail, and cross-piece not shown in the buried foundation portion in the middle area I;

[0056] Figure 3 for Figure 1 A partial enlarged schematic diagram of the transverse cylindrical ground rail, longitudinal cylindrical ground rail and cross-piece in the middle area I;

[0057] Figure 4 A schematic diagram of the placement of the shape and position detection device provided by an embodiment of the present invention in a grid-type cylindrical floor rail;

[0058] Figure 5 for Figure 4 An enlarged schematic diagram of a shape and position detection device provided in the illustrated embodiment;

[0059] Figure 6 To adopt Figure 5 A schematic diagram showing the principle of the shape and position detection device provided in the illustrated embodiment performing detection on a four-way member in a grid-type cylindrical floor rail;

[0060] Figure 7 To adopt Figure 5 A schematic diagram of the principle of the shape and position detection device provided in the illustrated embodiment performing detection on a cylindrical ground rail in a grid-type cylindrical ground rail;

[0061] Figure 8 for Figure 5 Front axonometric view of the plane detection component in the shape and position detection device provided by the embodiment shown

[0062] Figure 9 for Figure 8 Rear isometric view of the plane detection component in the shape and position detection device provided by the embodiment shown

[0063] Figure 10 for Figure 5 A front axonometric view of the central axis detection assembly of the form and position detection device provided by the illustrated embodiment;

[0064] Figure 11 for Figure 10 Rear isometric view of the axis detection assembly of the shape and position detection device provided by the embodiment shown

[0065] Figure 12 This is a flow chart of a method for detecting and evaluating a grid-type cylindrical ground rail provided in an embodiment of the present invention.

[0066] Description of reference numerals:

[0067] 1. Horizontal cylindrical ground rail, 2. Longitudinal cylindrical ground rail, 3. Cross-piece, 4. Production line foundation, 5. Coordinate system identification point, 6. Inner circular groove, 7. Axis detection assembly, 8. Plane detection assembly, 9. Level, 10. Measuring target, 11. Laser tracker, 12. Orienting inner circular groove, 13. Through inner circular groove, 14. First transfer plane, 15. First transfer circular hole, 16. Adjusting bolt, 17. Threaded hole, 18. Axis of the oriented inner circular groove, 19. Axis of the first transfer circular hole, 20. Positioning inner circular groove, 21. Second transfer plane, 22. Second transfer circular hole, 23. Axis of the positioning inner circular groove, 24. Axis of the second transfer circular hole. DETAILED DESCRIPTION

[0068] To make the purpose, technical solutions and advantages of the present invention more clearly understood, the embodiments of the present invention will be described in detail below with reference to the accompanying drawings. It should be noted that, unless there is a conflict, the embodiments and features in the embodiments of the present application can be combined with each other in any manner.

[0069] In order to achieve low-cost, high-efficiency and accurate form and position detection and evaluation of grid-type cylindrical floor rails with large size, large load and alternating load characteristics, an embodiment of the present invention provides a form and position detection device and detection and evaluation method for grid-type cylindrical floor rails.

[0070] The present invention provides the following specific embodiments that can be combined with each other. The same or similar concepts or processes may not be described in detail in some embodiments.

[0071] The application object of the embodiment of the present invention is the grid-type cylindrical ground rail of the aircraft mobile assembly production line, such as Figure 1 The figure shows the overall structure of the grid-type cylindrical rails of the aircraft mobile assembly production line according to an embodiment of the present invention. The grid-type cylindrical rails embedded in the production line foundation 4 include 8 rows of mutually parallel transverse cylindrical rails 1, 8 columns of mutually parallel longitudinal cylindrical rails 2, 64 four-way pieces 3 connecting the transverse cylindrical rails 1 and the longitudinal cylindrical rails 2, and a reference coordinate system R calibrated based on 36 coordinate system identification points 5. oxyz ; Reference coordinate system R oxyz The X-axis and Y-axis are parallel to the axis of the horizontal cylindrical rail 1 and the axis of the longitudinal cylindrical rail 2 respectively; the four-way piece 3 includes four inner circular grooves 6 that are centrally symmetrical and form an angle of 90° in sequence.

[0072] like Figure 4 、 Figure 5 、 Figure 6and Figure 7 , which is a schematic structural diagram of a shape and position detection device for a grid-type cylindrical ground rail provided in an embodiment of the present invention, comprising: at least one axis detection component 7 and at least one plane detection component 8.

[0073] See Figure 7 、 Figure 10 and Figure 11 As shown, the axis detection component 7 in the embodiment of the present invention is configured as an isosceles triangle flat plate, and the axis detection component 7 is provided with: two directional inner circular grooves 12, a straight inner circular groove 13, a first transfer plane 14, a first transfer circular hole 15 and an adjusting bolt 16. Among them: the two directional inner circular grooves 12 are provided at both ends of the bottom side of the isosceles triangle on the lower surface of the axis detection component 7, the two directional inner circular grooves 12 are coaxial and have equal apertures; the aperture of the straight inner circular groove 13 is larger than the aperture of the directional inner circular groove 12, the straight inner circular groove 13 is sandwiched between the two directional inner circular grooves 12, and the straight inner circular groove 13 is coaxial with the directional inner circular groove 12; the first transfer plane 14 is provided on the upper surface of the axis detection component 7, and the first transfer plane 14 is aligned with the axis of the directional inner circular groove 12 The first adapter circular hole 15 passes through the upper and lower surfaces of the axis detection component 7 and is perpendicular to the upper surface. The first adapter circular hole 15 is arranged in the middle of the straight inner circular groove 13, and its axis 19 intersects the axis 18 of the straight inner circular groove 13 at a right angle and is perpendicular to the first adapter plane 14. The adjusting bolt 16 is screwed into the threaded hole 17 at the top corner of the axis detection component 7 and vertically passes through the upper and lower surfaces of the axis detection component 7 for extending or shortening in the threaded hole 17.

[0074] The axis detection assembly 7 in the embodiment of the present invention measures the straightness, parallelism and horizontality of each transverse cylindrical ground rail 1 and each longitudinal cylindrical ground rail 2 by using a spirit level 9 and a measuring target 10 in conjunction with each other; during the use of the axis detection assembly 7, the two directional inner circular grooves 12 thereof are in contact with a single transverse cylindrical ground rail 1 or a single longitudinal cylindrical ground rail 2 to form a rotating pair; the horizontality of the four-way member 3 is measured by using two spirit levels 9 on the planes thereof in the transverse and longitudinal directions respectively, and the position of the four-way member 3 is measured by using a measuring target 10 set on the plane detection assembly 8 in conjunction with a laser tracker 11.

[0075] In a specific scheme of an embodiment of the present invention, the outer dimensions of the axis detection component 7 are 300 mm in length, 250 mm in width, and 18 mm in thickness, and the material is Q235 steel; in order to reduce the weight of the axis detection component 7 for easy transportation and adjustment, two right-angled triangular lightening holes are set on the axis detection component 7.

[0076] See Figure 6 、 Figure 8 and Figure 9As shown, the plane detection component 8 in the embodiment of the present invention is an octagonal flat plate, and the plane detection component 8 is provided with: four positioning inner circular grooves 20, a second transfer plane 21 and a second transfer circular hole 22. Among them: the four positioning inner circular grooves 20 are respectively provided at four mutually perpendicular ends of the lower surface of the plane detection component 8, the axes of the four positioning inner circular grooves 20 are coplanar and the axes of two adjacent positioning inner circular grooves 20 are perpendicular, the four positioning inner circular grooves 20 are distributed symmetrically around the center, and the apertures are equal; the second transfer plane 21 is provided on the upper surface of the plane detection component 8, and the second transfer plane 21 is parallel to the axes 23 of the four positioning inner circular grooves 20; the second transfer circular hole 22 passes through the upper and lower surfaces of the center position of the plane detection component 8 and is perpendicular to the upper surface, and the axis 24 of the second transfer circular hole 22 is perpendicular to the axis 23 of the four positioning inner circular grooves 20.

[0077] The plane detection component 8 in the embodiment of the present invention measures the levelness and position of the four-way piece 3 by using a spirit level 9 and a measuring target 10. During use, the four positioning inner circular grooves 20 of the plane detection component 8 are in contact with the four cylindrical ground rails fixed to the four-way piece 3.

[0078] In a specific scheme of an embodiment of the present invention, the outer dimensions of the plane detection component 8 are 260 mm in length, 260 mm in width, and 18 mm in thickness, and the material is Q235 steel; in order to reduce the weight of the axis detection component 7 for easy transportation and installation, 4 right-angled triangular lightening holes are set on the axis detection component 7.

[0079] like Figure 6 The level 9 shown in the figure has its base fitted with the second adapter plane 21 of the plane detection assembly 8 and is used to detect the levelness of the cross-piece 3. Figure 7 The level 9 shown has a base that fits with the first adapter plane 14 of the axis detection component 7, and is used to make the longitudinal direction (when the axis detection component 7 fits with the transverse cylindrical rail 1) or the transverse direction (when the axis detection component 7 fits with the longitudinal cylindrical rail 1) of the axis detection component 7 horizontal.

[0080] like Figure 6 and Figure 7 The laser tracker's measurement target 10 is shown with a cylindrical tail rod on one side and an optical reflector on the other. The cylindrical tail rod of the measurement target 10 is inserted into the first transfer hole 15 of the axis detection assembly 7, with the optical reflector positioned on the first transfer plane 14. The cylindrical tail rod of the measurement target 10 is then inserted into the second transfer hole 22 of the plane detection assembly 8, with the optical reflector positioned on the second transfer plane 21.

[0081] Furthermore, in one specific embodiment, the aperture of the orientation inner circular groove 12 of the axis detection assembly 7 and the aperture of the positioning inner circular groove 20 of the plane detection assembly 8 are equal, both being 50 mm. Furthermore, the aperture of the first adapter circular hole 15 of the axis detection assembly 7 and the aperture of the second adapter circular hole 22 of the plane detection assembly 8 are equal, and closely mate with the cylindrical tail rod of the measurement target 10, both being 6.35 mm.

[0082] An embodiment of the present invention further provides a method for detecting a grid-type cylindrical floor rail, which uses the form and position detection device for the grid-type cylindrical floor rail provided in any of the above embodiments to detect the form and position tolerance of the grid-type cylindrical floor rail, specifically comprising the following steps:

[0083] Step 1: Establish the reference coordinate system R based on the coordinate system identification point 5 in the grid-type cylindrical ground rail oxyz The laser tracker 11 is used to measure the coordinate system identification point 5 relative to the laser tracker coordinate system L oxyz The measured coordinates of each coordinate system mark point 5 relative to the reference coordinate system R oxyz The calibration coordinates are matched by the least square method to establish the reference coordinate system R oxyz ;

[0084] Step 2: Construct a standard CAD model for shape and position detection, including: importing and assembling the reference coordinate system R in situ in the CAD software oxyz , a three-dimensional model of the transverse cylindrical ground rail 1, a three-dimensional model of the longitudinal cylindrical ground rail 2, and a three-dimensional model of the four-way piece 3;

[0085] Step 3: Detect and evaluate the M*N cross-pieces 3 relative to the reference coordinate system R oxyz The level and position of the step 3 include the following subdivision steps:

[0086] Step 3-1, test preparation, includes: fitting at least one plane detection assembly 8 to the two transverse cylindrical rails 1 and two longitudinal cylindrical rails 2 fixed by the four positioning inner circular grooves 20 in the cylindrical rail;

[0087] Step 3-2, detecting the horizontality of the four-way piece 3 in the i-th row and j-th column of the cylindrical rail, comprising: placing two levels 9 in the horizontal direction and the vertical direction respectively on the second transfer plane 21 of the plane detection device 8 placed on the four-way piece 3 in the i-th row and j-th column of the cylindrical rail, and measuring the horizontal inclination angle of the plane detection device 8 and the corresponding four-way piece 3 in the i-th row and j-th column of the cylindrical rail. and longitudinal tilt angle

[0088] Step 3-3, evaluate the horizontality of the cross piece 3 set at the position of the i-th row and the j-th column on the cylindrical rail: only when the lateral inclination angle and longitudinal tilt angle The levelness is considered qualified only if it is within the allowable range;

[0089] Step 3-4, detect the position of the four-way piece 3 in the i-th row and j-th column of the cylindrical rail. The detection method is: insert the measurement target 10 into the second adapter hole 22 of the plane detection device 8 provided on the four-way piece in the i-th row and j-th column of the cylindrical rail, and measure the measurement target 10 relative to the reference coordinate system R by the laser tracker 11. oxyz The three-dimensional coordinates of

[0090] Step 3-5, evaluate the position of the four-way piece 3 set at the position of the i-th row and the j-th column in the cylindrical rail: only when the three-dimensional coordinates Each coordinate value in the CAD model is qualified only if it is within the position range allowed by the standard CAD model;

[0091] Step 4: Detect and evaluate the straightness, parallelism, and horizontality of the M rows of transverse cylindrical rails 1. Step 4 includes the following sub-steps:

[0092] Step 4-1, Inspection Preparation: Set P inspection points on the horizontal cylindrical rail 1 in the i-th row, align the axis detection assembly 7 with the k-th inspection point on the i-th row of horizontal cylindrical rails 1 through two directional inner circular grooves 12 (1≤i≤P), and place a spirit level 9 in the longitudinal direction on the first adapter plane 14 of the axis detection device 7. By rotating the feed amount of the adjustment bolt 16, ensure that the spirit level 9 and the axis detection assembly 7 are in a longitudinally horizontal state;

[0093] Step 4-2: Detect the coordinates of the kth detection point of the i-th row of transverse cylindrical rails 1. The detection method is as follows: insert the measurement target 10 into the first adapter hole 15 of the axis detection assembly 7 at the kth detection point on the i-th row of transverse cylindrical rails 1, and measure the coordinates of the measurement target 10 relative to the reference coordinate system R by the laser tracker 11. oxyz The three-dimensional coordinates of

[0094] Step 4-3, evaluate the straightness of the i-th row of horizontal cylindrical rail 1: only when the three-dimensional coordinates of the P detection points on the i-th row of horizontal cylindrical rail 1 are Each coordinate value in is within the straightness range allowed by the standard CAD model, and the straightness of the i-th row of transverse cylindrical rails 1 is considered qualified;

[0095] Step 4-4, evaluate the parallelism of the transverse cylindrical rail 1 described in row M: only when the three-dimensional coordinates of M*P (MP=M×P) detection points in all transverse cylindrical rails 1 are Each coordinate value in is within the flatness range allowed by the standard CAD model, and the parallelism of the M rows of transverse cylindrical rails 1 is qualified;

[0096] Step 4-5, evaluate the horizontality of the transverse cylindrical rail 1 described in row M: only when the three-dimensional coordinates of all M*P detection points in the transverse cylindrical rail 1 are Each coordinate value in is within the horizontality range allowed by the standard CAD model, and the horizontality of the M rows of transverse cylindrical rails 1 is qualified;

[0097] Step 5: Detect and evaluate the straightness, parallelism, and horizontality of the longitudinal cylindrical rail 2 described in column N. Step 5 includes the following sub-steps:

[0098] Step 5-1, Inspection Preparation: Assume that the j-th column of longitudinal cylindrical rails 2 has Q inspection points. Align the axis detection assembly 7 with the l-th inspection point (1≤l≤Q) on the j-th row of longitudinal cylindrical rails 2 via its two directional inner circular grooves 12. Place a spirit level 9 transversely on the first transfer plane 14 of the axis detection assembly 7. Rotate the adjustment bolt 16 to adjust the feed amount until the spirit level 9 and the axis detection assembly 7 are in a transversely horizontal state.

[0099] Step 5-2, detecting the coordinates of the j-th column longitudinal cylindrical rail 2 at the l-th detection point, includes: inserting the measurement target 10 into the first adapter hole 15 of the axis detection component 7 at the l-th detection point on the j-th column longitudinal cylindrical rail 2, and measuring the coordinates of the measurement target 10 relative to the reference coordinate system R by the laser tracker 11. oxyz The three-dimensional coordinates of

[0100]

[0101] Step 5-3, evaluate the straightness of the j-th column longitudinal cylindrical rail 2: only when the three-dimensional coordinates of Q detection points on the j-th column longitudinal cylindrical rail 2 are Each coordinate value in is within the straightness range allowed by the standard CAD model, and the straightness of the j-th column longitudinal cylindrical rail 2 is qualified;

[0102] Step 5-4, evaluate the parallelism of the longitudinal cylindrical rails described in column N: only when the three-dimensional coordinates of the N*Q detection points in all longitudinal cylindrical rails 2 are Each coordinate value in is within the flatness range allowed by the standard CAD model, and the parallelism of the N rows of longitudinal cylindrical rails 2 is qualified;

[0103] Step 5-5, evaluate the horizontality of the longitudinal cylindrical rails described in column N: only when the three-dimensional coordinates of the N*Q detection points in all longitudinal cylindrical rails 2 Each coordinate value in is within the horizontality range allowed by the standard CAD model, and the horizontality of the N rows of longitudinal cylindrical rails 2 is qualified;

[0104] Step 6: Evaluate the verticality of the horizontal cylindrical rail 1 in row M and the vertical cylindrical rail 2 in column N: only when the three-dimensional coordinates of the P detection points in any i-th row horizontal cylindrical rail 1 are and the three-dimensional coordinates of Q detection points in any j-th row of longitudinal cylindrical rail 2 Each coordinate value in is within the verticality range allowed by the standard CAD model, and the verticality of the M rows of horizontal cylindrical rails 1 and the N columns of longitudinal cylindrical rails 2 is considered qualified.

[0105] An embodiment of the present invention provides a form and position detection device and detection and evaluation method for a grid-type cylindrical rail. Based on the structure of the grid-type cylindrical rail in the production line foundation 4, the form and position detection device for this grid-type cylindrical rail includes: at least one axis detection component 7 and at least one plane detection component 8, as well as a level 9 and a measurement target 10. The axis detection component 7, configured as an isosceles triangular flat plate, is used to measure the straightness, parallelism, and horizontality of each transverse cylindrical rail 1 and each longitudinal cylindrical rail 2; the plane detection component 8, configured as an octagonal flat plate, is used to measure the position of the cross-piece 3. Compared with the existing technology, the technical solution provided by the embodiment of the present invention has the following significant benefits:

[0106] (1) The types of form and position detection for large heavy-load grid-type cylindrical rails have been unified. The existing rail straightness detection based on interferometer, rail parallelism detection based on micrometer, and rail levelness detection based on total station have been unified into coordinate detection based on reference coordinate system and laser tracker.

[0107] (2) The accuracy of form and position detection of large, heavy-load grid-type cylindrical rails is improved. Compared with the existing overall detection method based on the superposition of multiple local detections, the method of the present invention is an absolute overall detection method, which reduces a large amount of data transmission errors.

[0108] (3) The efficiency of shape and position detection of large heavy-load grid-type cylindrical rails is improved. The shape and position detection device of the present invention has fewer steps for installation and adjustment, is easy and convenient to operate, and is easy to save data.

[0109] Although the embodiments disclosed herein are as described above, the contents are merely provided to facilitate understanding of the present invention and are not intended to limit the present invention. Any person skilled in the art may make any modifications and variations in the form and details of the embodiments without departing from the spirit and scope of the present invention. However, the scope of patent protection of the present invention shall remain subject to the scope defined by the appended claims.

Claims

1. A shape and position detection device for a grid-type cylindrical ground rail, characterized in that: The grid-type cylindrical ground rail embedded in the production line foundation (4) comprises: M (M≥2) rows of mutually parallel transverse cylindrical ground rails (1), N (N≥2) columns of mutually parallel longitudinal cylindrical ground rails (2), M*N four-way pieces (3) for connecting the transverse cylindrical ground rails (1) and the longitudinal cylindrical ground rails (2), and a reference coordinate system R calibrated based on a plurality of coordinate system identification points (5). oxyz ; The reference coordinate system R oxyz The X-coordinate axis and the Y-coordinate axis are respectively parallel to the axis of the transverse cylindrical ground rail (1) and the axis of the longitudinal cylindrical ground rail (2); the four-way piece (3) is provided with four inner circular grooves arranged in a central symmetric manner, and adjacent inner circular grooves form an angle of 90°; the shape and position detection device of the grid-type cylindrical ground rail comprises: at least one axis detection component (7) and at least one plane detection component (8), as well as a level (9) and a measurement target (10); Each of the axis detection components (7) is configured as an isosceles triangle plate, and is used to be placed on the transverse cylindrical ground rail (1) or the longitudinal cylindrical ground rail (2) through two directional inner circular grooves (12) coaxially arranged at both ends of the bottom of the plate on one side of the bottom edge, and to adjust the longitudinal horizontality or transverse horizontality of the axis detection component (7) through a level meter (9) arranged on the upper plane and an adjustment bolt (16) screwed at the top angle position, and to measure the straightness, parallelism and horizontality of each transverse cylindrical ground rail (1) and each longitudinal cylindrical ground rail (2) through a measurement target (10) arranged on the axis detection component (7); Each of the plane detection components (8) is configured as an octagonal flat plate, and is used to be placed on the four-way piece (3) through four positioning inner circular grooves (20) centrally symmetrically arranged at the bottom of the flat plate, and to measure the horizontality of the four-way piece (3) through two level meters (9) on the upper plane thereof in the transverse and longitudinal directions, and to measure the position of the four-way piece (3) through a measurement target (10) arranged on the plane detection component (8) in cooperation with a laser tracker (11).

2. The shape and position detection device of the grid-type cylindrical ground rail according to claim 1, characterized in that: Each axis detection component (7) configured as an isosceles triangle flat plate is provided with: two directional inner circular grooves (12), a straight inner circular groove (13), a first transfer plane (14), a first transfer circular hole (15) and an adjustment bolt (16); Two directional inner circular grooves (12) with the same aperture are arranged on the lower surface of the axis detection component (7) and are located at the two ends of one side of the bottom edge of the isosceles triangle plate, the straight inner circular groove (13) is sandwiched between the two directional inner circular grooves (12), and the three inner circular grooves are coaxially arranged; the upper surface of the axis detection component (7) is the first transfer plane (14), and the first transfer plane (14) is parallel to the axis (18) of the directional inner circular groove (12); the first transfer circular hole (15) vertically passes through the axis detection component (7) and is arranged in the middle of the straight inner circular groove (13), and its axis (19) is perpendicular to the axis (18) of the straight inner circular groove (13) and perpendicular to the first transfer plane (14); the adjusting bolt (16) is screwed into the threaded hole (17) located at the top angle of the axis detection component (7) and vertically passes through the axis detection component (7) for extending or shortening by screwing in the threaded hole (17); When the axis detection component (7) measures each transverse cylindrical ground rail (1) and each longitudinal cylindrical ground rail (2), the two directional inner circular grooves 1 are attached to a single transverse cylindrical ground rail (1) or a single longitudinal cylindrical ground rail (2) to form a rotation pair.

3. The shape and position detection device of the grid-type cylindrical ground rail according to claim 2, characterized in that: When the axis detection assembly (7) is in use, the base of a level (9) used in conjunction with the axis detection assembly (7) fits the first transfer plane (14) of the axis detection assembly (7); the cylindrical tail rod of the measurement target (10) of the laser tracker is inserted into the first transfer circular hole (15) thereof, and the optical reflection ball thereof is located on the first transfer plane (14); When the axis detection assembly (7) is fitted with the transverse cylindrical ground rail (1), the level meter (9) is placed on the first transfer plane (14) of the axis detection assembly (7) in a longitudinally fitted manner, and measurement is performed by adjusting the axis detection assembly (7) to a longitudinally horizontal state; When the axis detection component (7) is fitted with the longitudinal cylindrical ground rail (1), the level meter (9) is placed on the first transfer plane (14) of the axis detection component (7) in a transversely fitted manner, and measurement is performed by adjusting the axis detection component (7) to a transversely horizontal state.

4. The shape and position detection device of the grid-type cylindrical ground rail according to claim 2, characterized in that: Each plane detection component (8) configured as an octagonal flat plate is provided with: four positioning inner circular grooves (20), a second transfer plane (21) and a second transfer circular hole (22); Among them, four positioning inner circular grooves (20) with the same aperture are arranged on the lower surface of the plane detection component (8) and are distributed in a central symmetrical manner. The axes of the four positioning inner circular grooves (20) are coplanar and the axes of two adjacent positioning inner circular grooves (20) are perpendicular. The upper surface of the plane detection component (8) is the second transfer plane (21), and the second transfer plane (21) is parallel to the axes (23) of the four positioning inner circular grooves (20). The second transfer circular hole (22) vertically penetrates the plane detection component (8) and is perpendicular to the second transfer plane (21). The axis (24) of the second transfer circular hole (22) and the axes (23) of the four positioning inner circular grooves (20) are perpendicular to each other. The aperture of the first transfer circular hole (15) of the axis detection component (7) is equal to the aperture of the second transfer circular hole 21 of the plane detection component (8). During use, the plane detection component (8) is in contact with the four cylindrical ground rails fixed by the four-way piece (3) through the four positioning inner circular grooves (20).

5. The shape and position detection device of the grid-type cylindrical ground rail according to claim 4, characterized in that: When the plane detection assembly (8) is in use, the bases of two levels (9) used in conjunction with the plane detection assembly (8) are respectively fitted with the second transfer plane (21) of the plane detection assembly (8) in the horizontal and vertical directions; the cylindrical tail rod of the measurement target (10) of the laser tracker is inserted into the second transfer circular hole (22) thereof, and the optical reflection ball is located on the second transfer plane (21).

6. A method for detecting and evaluating a grid-type cylindrical ground rail, characterized in that: A method for detecting and evaluating a grid-type cylindrical ground rail is performed using the shape and position detection device for the grid-type cylindrical ground rail provided by any one of claims 1 to 5, specifically comprising the following steps: Step 1: Establish the reference coordinate system R oxyz :Use laser tracker to measure all the coordinate system identification points relative to the laser tracker coordinate system L oxyz The measured coordinates of all the coordinate system identification points relative to the reference coordinate system R oxyz The calibration coordinates are matched by the least squares method to establish the reference coordinate system R oxyz ; Step 2: Construct a standard CAD model for shape and position detection: Import and assemble the reference coordinate system R in the CAD software in situ. oxyz , the three-dimensional model of the transverse cylindrical rail, the three-dimensional model of the longitudinal cylindrical rail, and the three-dimensional model of the four-way piece; Step 3, detecting and evaluating the horizontality and position of the M*N cross-pieces relative to the reference coordinate system; Step 4, inspecting and evaluating the straightness, parallelism and horizontality of the M rows of transverse cylindrical rails (1); Step 5, inspecting and evaluating the straightness, parallelism and horizontality of the N rows of longitudinal cylindrical rails (2); Step 6, evaluating the verticality of the M rows of transverse cylindrical ground rails (1) and the N columns of longitudinal cylindrical ground rails (2).

7. The detection and evaluation method of the grid-type cylindrical ground rail according to claim 6, characterized in that: The step 3 comprises: Step 3-1, test preparation, comprising: fitting at least one plane test component to two transverse cylindrical ground rails (1) and two longitudinal cylindrical ground rails (2) fixed by a four-way piece (3) in the i-th (1≤i≤M) row and j-th (1≤i≤N) column of the cylindrical ground rail through four positioning inner circular grooves; Step 3-2, detecting the horizontality of the i-th row and j-th column of the four-way piece in the cylindrical ground rail, comprising: two level meters (9) are respectively arranged in the second transfer plane (21) of each plane detection component (8) in the transverse direction and the longitudinal direction to measure the transverse inclination angle of each plane detection component (8) and the corresponding four-way piece (3); and longitudinal tilt angle Step 3-3, evaluate the horizontality of the cross-piece set at the position of the i-th row and the j-th column on the cylindrical track: when the lateral inclination angle measured in step 3-2 is and the longitudinal inclination angle If all of them are within the allowable level range, the levelness of the tested cross-piece is considered qualified; Step 3-4, detecting the position of the four-way components in the i-th row and j-th column in the cylindrical ground rail, comprises: inserting a measurement target (10) into the second transfer circular hole (22) of each plane detection component (8), and measuring the three-dimensional coordinates of the measurement target (10) relative to the reference coordinate system by a laser tracker Step 3-5, evaluate the position of the four-way piece set at the position of the i-th row and the j-th column in the cylindrical track: when the three-dimensional coordinates measured in step 3-4 Each coordinate value in is within the position range allowed by the standard CAD model, and the position of the measured four-way component is judged to be qualified.

8. The detection and evaluation method of the grid-type cylindrical ground rail according to claim 6, characterized in that: The step 4 comprises: Step 4-1, detection preparation, including: setting P detection points on the i-th row of transverse cylindrical rails (1), aligning the axis detection assembly (7) with the k-th detection point on the i-th row of transverse cylindrical rails (1) through its two directional inner circular grooves (12) (1≤i≤P), and placing a level meter (9) on the first transfer plane (14) of the axis detection assembly (7) along the longitudinal direction, and adjusting the feed amount of the adjusting bolt (16) in the rotating axis detection assembly (7) so that the level meter (9) and the axis detection assembly are in a longitudinal horizontal state; Step 4-2, detecting the coordinates of the i-th row of transverse cylindrical rails (1) at the k-th detection point position, comprising: inserting a measurement target (10) into a first adapter circular hole (15) of an axis detection component (7) disposed at the k-th detection point position on the i-th row of transverse cylindrical rails (1), and measuring the three-dimensional coordinates of the measurement target (10) relative to the reference coordinate system by a laser tracker (11); Step 4-3, evaluating the straightness of the i-th row of transverse cylindrical rails (1), comprising: when the three-dimensional coordinates of P detection points on the i-th row of transverse cylindrical rails (1) are If each coordinate value in is within the straightness range allowed by the standard CAD model, the straightness of the i-th row of transverse cylindrical rails (1) is judged to be qualified; Step 4-4, evaluating the parallelism of the M rows of transverse cylindrical rails (1), including: when the three-dimensional coordinates of M*P detection points in all transverse cylindrical rails (1) are If each coordinate value in is within the flatness range allowed by the standard CAD model, then the parallelism of the M rows of transverse cylindrical rails (1) is judged to be qualified; Step 4-5, evaluating the horizontality of M rows of transverse cylindrical rails (1), including: when the three-dimensional coordinates of M*P detection points in all transverse cylindrical rails (1) are If each coordinate value in is within the horizontality range allowed by the standard CAD model, then the horizontality of the M rows of transverse cylindrical rails (1) is judged to be qualified.

9. The detection and evaluation method of the grid-type cylindrical ground rail according to claim 6, characterized in that: The step 5 comprises: Step 5-1, detection preparation, including: setting Q detection points on the j-th column of longitudinal cylindrical rails (2), aligning the axis detection assembly (7) with the position of the l-th detection point on the j-th row of longitudinal cylindrical rails (2) through its two directional inner circular grooves (12) by 1≤l≤Q, and placing a level meter (9) on the first transfer plane (14) of the axis detection assembly (7) in the transverse direction, and adjusting the feed amount of the adjusting bolt (16) in the rotating axis detection assembly (7) so that the level meter (9) and the axis detection assembly are in a transverse horizontal state; Step 5-2, detecting the coordinates of the j-th column of longitudinal cylindrical rails (2) at the l-th detection point position, comprising: inserting a measurement target (10) into a first adapter circular hole (15) of an axis detection component (7) disposed at the l-th detection point position on the j-th column of longitudinal cylindrical rails (2), and measuring the three-dimensional coordinates of the measurement target (10) relative to the reference coordinate system by a laser tracker (11); Step 5-3, evaluating the straightness of the j-th column of longitudinal cylindrical rails (2), comprising: when the three-dimensional coordinates of Q detection points on the j-th column of longitudinal cylindrical rails (2) are If each coordinate value in is within the straightness range allowed by the standard CAD model, the straightness of the j-th column of longitudinal cylindrical rails (2) is judged to be qualified; Step 5-4, evaluating the parallelism of N rows of longitudinal cylindrical rails (2), includes: when the three-dimensional coordinates of N*Q detection points in all longitudinal cylindrical rails (2) are If each coordinate value in is within the flatness range allowed by the standard CAD model, then the parallelism of the N rows of longitudinal cylindrical rails (2) is judged to be qualified; Step 5-5, evaluating the horizontality of N rows of longitudinal cylindrical rails (2), including: when the three-dimensional coordinates of N*Q detection points in all longitudinal cylindrical rails (2) are If each coordinate value in is within the horizontality range allowed by the standard CAD model, then the horizontality of the N rows of longitudinal cylindrical rails (2) is judged to be qualified.

10. The detection and evaluation method of the grid-type cylindrical ground rail according to claim 6, characterized in that: The step 6 comprises: When the three-dimensional coordinates of P detection points in each row of transverse cylindrical rails (1) and the three-dimensional coordinates of Q detection points in each row of longitudinal cylindrical rails (2) If each coordinate value in is within the verticality range allowed by the standard CAD model, it is judged that the verticality of the M rows of transverse cylindrical ground rails (1) and the N columns of longitudinal cylindrical ground rails (2) is qualified.

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