A fixture for detecting the spacing and parallelism of holes in a heliostat connector.

Abstract

The present invention provides a detection tool for the hole pitch and parallelism of a heliostat connecting seat. By setting a positioning area, a reference area and a detection area on a base, and correspondingly setting a positioning structure, a reference structure and a floating detection mechanism; during detection, the to-be-detected heliostat connecting seat is positioned on the positioning structure of the base, and the reference is determined by inserting a reference unit along a reference sliding unit into the push rod mounting hole of the to-be-detected heliostat connecting seat, and then the floating detection unit slides along the detection sliding unit and is pushed into the rotating shaft mounting hole of the to-be-detected heliostat connecting seat. Since the maximum offset of the floating detection unit is the maximum allowable machining error between the push rod mounting hole and the rotating shaft mounting hole, if it can be smoothly pushed in, it is judged that the pitch dimension and parallelism of the rotating shaft mounting hole and the push rod mounting hole are qualified, and if it cannot be smoothly pushed in, it is judged as unqualified. The detection tool of this embodiment has a simple structure, low manufacturing cost, convenient use and high detection accuracy.

Description

Technical Field

[0001] This invention belongs to the field of testing tooling technology, and particularly relates to a tooling for testing the spacing and parallelism of holes in a heliostat connector. Background Technology

[0002] The connecting seat is a key component of the mechanical structure of heliostats in tower solar thermal power plants. It is used to connect columns, main beam welded parts, and push rods. The machined hole positions and dimensions and geometric tolerances of the connecting seat are subject to high requirements. Its accuracy directly affects the running stability of the push rod and the rotating shaft. Under normal circumstances, the distance and parallelism between the connecting seat push rod mounting hole and the rotating shaft mounting hole cannot be accurately and comprehensively inspected using ordinary measuring tools. Summary of the Invention

[0003] The technical problem to be solved by the present invention is to provide a tooling for detecting the hole spacing and parallelism of heliostat connectors, so as to solve the problem that existing heliostat connectors are difficult to detect.

[0004] To solve the above problems, the technical solution of the present invention is as follows:

[0005] This invention provides a fixture for detecting the spacing and parallelism of holes in a heliostat connector. The axial direction of the push rod mounting hole and the rotating shaft mounting hole of the heliostat connector to be measured is defined as the Y-axis direction. The X-axis direction and the Z-axis direction are perpendicular to the Y-axis direction and mutually perpendicular to each other. The fixture includes:

[0006] The base has a positioning area for positioning the external heliostat connector, a reference area for positioning the push rod mounting hole, and at least one detection area for positioning the rotating shaft mounting hole.

[0007] A positioning structure is provided in the positioning area for positioning the relative position between the heliostat connector to be measured and the base.

[0008] The reference structure includes a reference sliding unit and a reference unit; the reference sliding unit is located in the reference region and slides along the Y-axis direction; the reference unit is located at the sliding end of the reference sliding unit and is used to insert and position the push rod mounting hole.

[0009] At least one floating detection structure corresponds one-to-one with the detection area. The floating detection structure includes a detection sliding unit and a floating detection unit. The detection sliding unit is disposed in the detection area and slides along the Y-axis direction. The floating detection unit is disposed at the sliding end of the detection sliding unit and is used to move and detect the rotating shaft mounting hole.

[0010] The maximum offset of the floating detection unit relative to the sliding end of the detection sliding unit in the X-axis and Y-axis directions is the maximum allowable machining error between the push rod mounting hole and the rotating shaft mounting hole.

[0011] The present invention provides a fixture for detecting the spacing and parallelism of holes in a heliostat connector, wherein the base includes a vertical plate and a bottom plate;

[0012] The upright plate is vertically installed on the front of the base plate, and together they form a detection space;

[0013] Within the detection space, the reference area is provided on the side of the upright plate away from the base plate, the positioning area is provided on the base plate, and the detection area is provided on the side of the base plate away from the upright plate;

[0014] The X-axis direction is defined as the direction perpendicular to the vertical plate.

[0015] The present invention provides a fixture for detecting the spacing and parallelism of holes in a heliostat connector, wherein the positioning structure includes at least one positioning block and at least one stop block;

[0016] The positioning block is mounted on the base plate and serves as a positioning point for the heliostat connector to be measured in the X-axis direction; the stop block is mounted on the base plate and located within the detection space, serving as a positioning point for the heliostat connector to be measured in the Y-axis direction.

[0017] The fixture for detecting the spacing and parallelism of heliostat mounting holes of the present invention includes a reference sliding unit comprising a reference slide rail fixing block, a reference slide rail, and a reference slider.

[0018] The reference slide rail fixing block is disposed on the vertical plate, the reference slide rail is disposed on the reference slide rail fixing block, and the reference slider is slidably connected to the reference slide rail;

[0019] The reference unit includes a reference axis and a reference axis fixing block, and the reference axis is connected to the reference slider through the reference axis fixing block;

[0020] The diameter accuracy of the reference shaft matches the diameter accuracy of the push rod mounting hole, and the guiding accuracy of the reference slide rail matches the guiding accuracy of the push rod mounting hole.

[0021] The present invention provides a fixture for detecting the spacing and parallelism of holes in a heliostat connector, wherein the number of detection areas is two, which are respectively arranged on both sides of the positioning area in the Y-axis direction;

[0022] The two floating detection structures are positioned opposite each other within the two detection areas.

[0023] The present invention provides a fixture for detecting the spacing and parallelism of holes in a heliostat connector, wherein the detection sliding unit includes a detection slider, two detection guide rails, and two detection stops.

[0024] The two detection guide rails are arranged in parallel between the two detection blocks;

[0025] The detection slider is slidably connected to the two detection guide rails.

[0026] The present invention provides a fixture for detecting the spacing and parallelism of holes in a heliostat connector, wherein the floating detection unit comprises a floating unit and a detection unit;

[0027] The fixed end of the floating unit is mounted on the sliding end of the detection sliding unit to achieve offset relative to the sliding end of the detection sliding unit in the X-axis and Z-axis directions.

[0028] The detection unit is rotatably connected to the movable end of the floating unit along the Y-axis.

[0029] The present invention provides a fixture for detecting the spacing and parallelism of holes in a heliostat connector. The floating unit includes a floating bottom positioning plate, several floating positioning pins, a floating middle movable plate, several floating detection springs, and a floating top movable plate welded component.

[0030] The floating bottom positioning plate is disposed at the sliding end of the floating sliding unit, and the floating bottom positioning plate is provided with at least one bottom positioning pin hole;

[0031] The floating intermediate movable plate is provided with at least one elongated through slot extending along the X-axis direction. The floating intermediate movable plate is installed on the floating bottom positioning plate through the floating positioning pin, the elongated through slot, and the bottom positioning pin hole, which is used to realize the limiting of the floating intermediate movable plate relative to the floating bottom positioning plate in the Y-axis direction and the movement in the X-axis direction. The size of the elongated through slot is the maximum allowable machining error in the X-axis direction between the push rod mounting hole and the rotating shaft mounting hole.

[0032] The floating intermediate movable plate is provided with a number of floating detection springs and a number of intermediate positioning pin holes;

[0033] The floating top movable plate welded component is provided with several top positioning pin holes and mounting holes for connecting the detection unit. The floating top movable plate welded component is mounted on the floating detection spring and the floating intermediate movable plate through the floating positioning pins, the top positioning pin holes and the intermediate positioning pin holes, which are used to limit the movement of the floating top movable plate welded component relative to the floating intermediate movable plate in the Z-axis direction to the maximum allowable machining error between the push rod mounting hole and the rotating shaft mounting hole in the Z-axis direction.

[0034] The fixture for detecting the spacing and parallelism of heliostat mounting holes of the present invention includes a floating unit further comprising several floating locking set screws.

[0035] Each of the bottom positioning pin holes and the middle positioning pin holes is provided with a set screw hole, and the set screw hole is provided with a floating locking set screw for securing the corresponding floating positioning pin.

[0036] The present invention provides a fixture for detecting the spacing and parallelism of holes in a heliostat mounting base. The detection unit includes a detection shaft, several detection ball positioning blocks, a detection ball, a detection bolt, a detection positioning pin, a detection nut, and a detection set screw.

[0037] The detection shaft is rotatably connected to the movable end of the floating unit;

[0038] The detection ball positioning block is sleeved on the detection shaft and positioned by the detection set screw. Every two adjacent detection ball positioning blocks are fitted together to form a detection ball receiving space. Adjacent detection ball positioning blocks are locked together by the detection bolt and the detection nut.

[0039] The detection ball is movably installed within the detection ball receiving space.

[0040] Because of the above technical solutions, this invention has the following advantages and positive effects compared with the prior art:

[0041] One embodiment of the present invention establishes a positioning area, a reference area, and a detection area on a base, and correspondingly sets up a positioning structure, a reference structure, and a floating detection mechanism. The reference structure includes a reference sliding unit and a reference unit, and the floating detection structure includes a detection sliding unit and a floating detection unit. During detection, the heliostat connector to be measured is positioned on the positioning structure of the base, and the reference unit is inserted into the push rod mounting hole of the heliostat connector to be measured along the reference sliding unit for reference determination. Then, the floating detection unit slides along the detection sliding unit and is pushed into the rotating shaft mounting hole of the heliostat connector to be measured. Since the maximum offset of the floating detection unit in the X-axis and Y-axis directions is the maximum allowable machining error between the push rod mounting hole and the rotating shaft mounting hole of the heliostat connector, if it can be pushed in smoothly, the distance and parallelism between the rotating shaft mounting hole and the push rod mounting hole are judged to be qualified; if it cannot be pushed in smoothly, it is judged to be unqualified. The detection fixture structure of this embodiment is simple, has low manufacturing cost, is easy to use, and has high detection accuracy. Attached Figure Description

[0042] Figure 1 This is a schematic diagram of the overall structure of the heliostat of the present invention;

[0043] Figure 2 This is a structural diagram of the heliostat connector of the present invention;

[0044] Figure 3 This is a schematic diagram of the tooling for detecting the spacing and parallelism of the holes in the heliostat connector of the present invention;

[0045] Figure 4 This is a schematic diagram of the structure of the tooling for detecting the spacing and parallelism of the holes in the heliostat connector of the present invention;

[0046] Figure 5 This is a diagram of the reference structure of the tooling for detecting the spacing and parallelism of the holes in the heliostat connector of the present invention;

[0047] Figure 6 This is a schematic diagram of the floating detection structure of the heliostat mounting hole spacing and parallelism detection fixture of the present invention.

[0048] Figure 7 This invention relates to a floating unit for a tooling for detecting the spacing and parallelism of holes in a heliostat connector.

[0049] Figure 8 This invention relates to a testing unit for a tooling system used to test the spacing and parallelism of holes in a heliostat connector.

[0050] Explanation of reference numerals in the attached drawings: 1: Power supply box; 2: Column; 3: Electric push rod; 4: Reflector; 5: Mirror frame; 6: Connecting seat; 61: Push rod mounting hole; 62: Rotary shaft mounting hole; 7: Rotary reducer; 8: Inspection fixture; 81: Reference structure; 811: Reference shaft; 812: Reference shaft fixing block; 813: Reference slider; 814: Reference slide rail; 815: Reference slide rail fixing block; 82: Vertical plate; 83: Base plate; 84: Positioning block; 85: Positioning stop; 86: Floating inspection structure; 861: Floating unit; 8611: Floating top movable plate welded component; 8612: Floating positioning pin; 8613: Floating middle movable plate; 8614: Floating bottom positioning plate; 8615: Floating locking set screw; 8616: Floating detection spring; 862: Detection unit; 8621: Detection shaft; 8622: Detection ball positioning block; 8623: Detection ball; 8624: Detection bolt; 8625: Detection positioning pin; 8626: Detection nut; 8627: Detection set screw; 863: Detection stop; 864: Detection slider; 865: Detection guide rail; Detailed Implementation

[0051] The following detailed description, in conjunction with the accompanying drawings and specific embodiments, provides a tooling for detecting the spacing and parallelism of holes in a heliostat connector according to the present invention. The advantages and features of the present invention will become clearer from the following description and claims.

[0052] See Figure 1 In one embodiment, such as Figure 1 As shown, the heliostat includes a power supply box 1, a column 2, an electric actuator 3, a reflector 4, a frame 5, a connecting base 6, and a rotary reducer 7. Figure 2As shown, the connecting seat 6 is a machined finished product, while the connecting seat blank is a casting structure. The shaft mounting hole 62 and push rod mounting hole 61 on the connecting seat are machined. Since it is a connecting part between two components, the connection position on it, that is, the distance and parallelism between the push rod mounting hole 61 and the shaft mounting hole 62, is very important.

[0053] Therefore, see Figure 3 and Figure 4 This embodiment provides a fixture 8 for detecting the spacing and parallelism of the holes in the heliostat mounting base, in order to detect the spacing and parallelism between the push rod mounting hole 61 and the rotating shaft mounting hole 62.

[0054] First, the axial direction of the push rod mounting hole 61 and the rotating shaft mounting hole 62 of the heliostat connector to be measured is defined as the Y-axis direction, and the X-axis direction and Z-axis direction are perpendicular to the Y-axis direction and perpendicular to each other, respectively.

[0055] The fixture 8 for detecting the spacing and parallelism of the holes in the heliostat connector in this embodiment includes: a base, a positioning structure, a reference structure 81, and at least one floating detection structure 86.

[0056] The base has a positioning area for positioning the external heliostat connector, a reference area for positioning the push rod mounting hole 61, and at least one detection area for positioning the rotating shaft mounting hole 62. A positioning structure is located in the positioning area to position the relative position between the heliostat connector and the base. The reference structure 81 includes a reference sliding unit and a reference unit. The reference sliding unit is located in the reference area and slides along the Y-axis. The reference unit is located at the sliding end of the reference sliding unit and is used to insert into and position the push rod mounting hole 61. A floating detection structure 86 corresponds one-to-one with the detection area. The floating detection structure 86 includes a detection sliding unit and a floating detection unit 862. The detection sliding unit is located in the detection area and slides along the Y-axis. The floating detection unit 862 is located at the sliding end of the detection sliding unit and is used to move and detect the rotating shaft mounting hole 62.

[0057] Among them, the maximum offset of the floating detection unit 862 relative to the sliding end of the detection sliding unit in the X-axis and Y-axis directions is the maximum allowable machining error between the push rod mounting hole 61 and the rotating shaft mounting hole 62.

[0058] This embodiment sets up a positioning area, a reference area, and a detection area on the base, and correspondingly sets up a positioning structure, a reference structure 81, and a floating detection mechanism. The reference structure 81 includes a reference sliding unit and a reference unit, and the floating detection structure 86 includes a detection sliding unit and a floating detection unit 862. During detection, the heliostat connector to be measured is positioned on the positioning structure of the base, and the reference unit is inserted into the push rod mounting hole 61 of the heliostat connector to be measured along the reference sliding unit to determine the reference. Then, the floating detection unit 862 is slid along the detection sliding unit and pushed into the rotating shaft mounting hole 62 of the heliostat connector to be measured. Since the maximum offset of the floating detection unit 862 in the X-axis and Y-axis directions is the maximum allowable machining error between the push rod mounting hole 61 and the rotating shaft mounting hole 62 of the heliostat connector, if it can be pushed in smoothly, the distance and parallelism between the rotating shaft mounting hole 62 and the push rod mounting hole 61 are judged to be qualified; if it cannot be pushed in smoothly, it is judged to be unqualified. The detection fixture 8 of this embodiment has a simple structure, low manufacturing cost, is easy to use, and has high detection accuracy.

[0059] The specific structure of the fixture 8 for detecting the spacing and parallelism of the heliostat mounting holes in this embodiment will be further described below:

[0060] In this embodiment, the base includes a vertical plate 82 and a base plate 83. The vertical plate 82 is vertically mounted on the edge of the front side of the base plate 83, and a detection space is formed between the front side of the base plate 83 and the side of the vertical plate 82 facing the base plate 83. Within this detection space, the reference area is provided on the side of the vertical plate 82 away from the base plate 83, the positioning area is provided on the base plate 83, and the detection area is provided on the side of the base plate 83 away from the vertical plate 82. The X-axis direction is defined as perpendicular to the vertical plate 82.

[0061] In this embodiment, the positioning structure described above may specifically include at least one positioning block 84 and at least one positioning point. The positioning block 84 is mounted on the base plate 83 and serves as a positioning structure for the heliostat connector to be measured in the X-axis direction. The positioning stop 85 is mounted on the base plate 83 and located within the detection space, serving as a positioning point for the heliostat connector to be measured in the Y-axis direction.

[0062] Specifically, the number of positioning blocks 84 can be determined based on the area on the surface of the base plate 83 corresponding to the heliostat connector that can serve as a positioning reference, and the number of positioning blocks 85 can be two, respectively set on both sides of the heliostat connector in the Y-axis direction.

[0063] See Figure 5 In this embodiment, the aforementioned reference sliding unit may specifically include a reference slide rail fixing block 815, a reference slide rail 814, and a reference slider 813.

[0064] A reference slide rail fixing block 815 is mounted on the vertical plate 82, a reference slide rail 814 is mounted on the reference slide rail fixing block 815, and a reference slider 813 is slidably connected to the reference slide rail 814. The mounting of the reference slide rail fixing block 815 ensures that the direction of the reference slide rail 814 is the Y-axis direction.

[0065] The aforementioned reference unit may specifically include a reference shaft 811 and a reference shaft fixing block 812. The reference shaft 811 is connected to the reference slider 813 via the reference shaft fixing block 812. The diameter accuracy of the reference shaft 811 matches the diameter accuracy of the push rod mounting hole 61, and the guiding accuracy of the reference slide rail 814 matches the guiding accuracy of the push rod mounting hole 61. Therefore, after the reference shaft 811 is inserted into the push rod mounting hole 61, the relative position of the heliostat connecting seat with respect to the reference shaft 811 and the base is determined.

[0066] In this embodiment, since the shaft mounting hole 62 is relatively long, there are two detection areas, which are respectively set on both sides of the positioning area in the Y-axis direction. The two floating detection structures 86 are arranged opposite each other in the two detection areas, and are inserted into the shaft mounting hole 62 from both sides to perform detection.

[0067] In this embodiment, the aforementioned detection sliding unit may specifically include a detection slider 864, two detection guide rails 865, and two detection stops 863.

[0068] Two detection guide rails 865 are arranged in parallel between two detection blocks 863. The detection slider 864 is slidably connected to the two detection guide rails 865. Setting two detection guide rails 865 can ensure detection accuracy.

[0069] See Figure 6 In this embodiment, the floating detection unit 862 includes a floating unit 861 and a detection unit 862.

[0070] The fixed end of the floating unit 861 is mounted on the sliding end of the detection sliding unit, and is used to offset relative to the sliding end of the detection sliding unit in the X-axis and Z-axis directions. The detection unit 862 is rotatably connected to the movable end of the floating unit 861 with the Y-axis as the axial direction.

[0071] Specifically, see Figure 7 The aforementioned floating unit 861 includes a floating bottom positioning plate 8614, a plurality of floating positioning pins 8612, a floating middle movable plate 8613, a plurality of floating detection springs 8616, and a floating top movable plate welded component 8611.

[0072] A floating bottom positioning plate 8614 is located at the sliding end of the floating sliding unit, and at least one bottom positioning pin hole is provided on the floating bottom positioning plate 8614. A floating intermediate movable plate 8613 is provided with at least one elongated through slot extending along the X-axis direction. The floating intermediate movable plate 8613 is mounted on the floating bottom positioning plate 8614 via a floating positioning pin 8612, the elongated through slot, and the bottom positioning pin hole, thereby achieving the limiting of the floating intermediate movable plate 8613 relative to the floating bottom positioning plate 8614 in the Y-axis direction and its movement in the X-axis direction. The size of the elongated through slot is the maximum permissible machining error in the X-axis direction between the push rod mounting hole 61 and the rotating shaft mounting hole 62.

[0073] The floating intermediate movable plate 8613 is provided with several floating detection springs 8616 and several intermediate positioning pin holes. The floating top movable plate welded part 8611 is provided with several top positioning pin holes and mounting holes for connecting the detection unit 862. The floating top movable plate welded part 8611 is mounted on the floating detection springs 8616 and the floating intermediate movable plate 8613 through floating positioning pins 8612 and the top positioning pin holes and intermediate positioning pin holes. The amount of movement of the floating top movable plate welded part 8611 relative to the floating intermediate movable plate 8613 in the Z-axis direction is limited to the maximum allowable machining error in the Z-axis direction between the push rod mounting hole 61 and the rotating shaft mounting hole 62.

[0074] Furthermore, the floating unit 861 also includes several floating locking set screws 8615. Each bottom positioning pin hole and the middle positioning pin hole are provided with a set screw hole, and a floating locking set screw 8615 is provided in the set screw hole to lock the corresponding floating positioning pin 8612, thereby fixing the relative position of the floating positioning pin 8612 with the floating bottom positioning plate 8614 and the floating middle movable plate 8613 respectively.

[0075] Further, see Figure 8 The aforementioned detection unit 862 may include a detection shaft 8621, a plurality of detection ball positioning blocks 8622, a detection ball 8623, a detection bolt 8624, a detection positioning pin 8625, a detection nut 8626, and a detection set screw 8627.

[0076] The detection shaft 8621 is rotatably connected to the movable end of the floating unit 861. The detection ball positioning block 8622 is fitted onto the detection shaft 8621 and positioned by the detection set screw 8627. Two adjacent detection ball positioning blocks 8622 are fitted together to form a detection ball 8623 receiving space. Adjacent detection ball positioning blocks 8622 are locked together by detection bolts 8624 and detection nuts 8626. The detection ball 8623 is movably installed within the detection ball 8623 receiving space. The distance between the two ends of the detection ball 8623 is set according to the parallelism tolerance requirements of the push rod mounting hole 61 and the rotating shaft mounting hole 62. During the detection process, the detection ball 8623 can rotate in any direction. Through the rotation of the detection shaft 8621, the detection position of the detection ball 8623 can cover the entire inner circular surface of the rotating shaft mounting hole 62.

[0077] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings, but the present invention is not limited to the above embodiments. Even if various changes are made to the present invention, if these changes fall within the scope of the claims of the present invention and their equivalents, they shall still fall within the protection scope of the present invention.

Claims

1. A fixture for detecting the spacing and parallelism of holes in a heliostat connector, wherein the axial direction of the push rod mounting hole and the rotating shaft mounting hole of the heliostat connector to be measured is defined as the Y-axis direction, and the X-axis direction and the Z-axis direction are perpendicular to the Y-axis direction and perpendicular to each other, respectively, characterized in that, include: The base has a positioning area for positioning the external heliostat connector, a reference area for positioning the push rod mounting hole, and at least one detection area for positioning the rotating shaft mounting hole. A positioning structure is provided in the positioning area for positioning the relative position between the heliostat connector to be measured and the base. The reference structure includes a reference sliding element and a reference element; The reference sliding unit is located in the reference region and slides along the Y-axis direction; The reference unit is located at the sliding end of the reference sliding unit and is used to insert into and position the push rod mounting hole; At least one floating detection structure corresponds one-to-one with the detection area. The floating detection structure includes a detection sliding unit and a floating detection unit. The detection sliding unit is disposed in the detection area and slides along the Y-axis direction. The floating detection unit is disposed at the sliding end of the detection sliding unit and is used to move and detect the rotating shaft mounting hole. Wherein, the maximum offset of the floating detection unit relative to the sliding end of the detection sliding unit in the X-axis direction and the Z-axis direction is the maximum allowable machining error between the push rod mounting hole and the rotating shaft mounting hole; The base includes a vertical plate and a bottom plate; The upright plate is vertically installed on the front of the base plate, and together they form a detection space; Within the detection space, the reference area is provided on the side of the upright plate away from the base plate, the positioning area is provided on the base plate, and the detection area is provided on the side of the base plate away from the upright plate; Define the X-axis direction as the direction perpendicular to the vertical plate; The floating detection unit includes a floating unit and a detection unit; The fixed end of the floating unit is mounted on the sliding end of the detection sliding unit to achieve offset relative to the sliding end of the detection sliding unit in the X-axis and Z-axis directions. The detection unit is rotatably connected to the movable end of the floating unit along the Y-axis. The floating unit includes a floating bottom positioning plate, several floating positioning pins, a floating middle movable plate, several floating detection springs, and a floating top movable plate welded component; The floating bottom positioning plate is disposed at the sliding end of the floating sliding unit, and the floating bottom positioning plate is provided with at least one bottom positioning pin hole; The floating intermediate movable plate is provided with at least one elongated through slot extending along the X-axis direction. The floating intermediate movable plate is installed on the floating bottom positioning plate through the floating positioning pin, the elongated through slot, and the bottom positioning pin hole, which is used to realize the limiting of the floating intermediate movable plate relative to the floating bottom positioning plate in the Y-axis direction and the movement in the X-axis direction. The size of the elongated through slot is the maximum allowable machining error in the X-axis direction between the push rod mounting hole and the rotating shaft mounting hole. The floating intermediate movable plate is provided with a number of floating detection springs and a number of intermediate positioning pin holes; The floating top movable plate welded component is provided with several top positioning pin holes and mounting holes for connecting the detection unit. The floating top movable plate welded component is mounted on the floating detection spring and the floating intermediate movable plate through the floating positioning pins, the top positioning pin holes and the intermediate positioning pin holes, which are used to limit the movement of the floating top movable plate welded component relative to the floating intermediate movable plate in the Z-axis direction to the maximum allowable machining error between the push rod mounting hole and the rotating shaft mounting hole in the Z-axis direction.

2. The fixture for detecting the spacing and parallelism of heliostat mounting holes as described in claim 1, characterized in that, The positioning structure includes at least one positioning block and at least one stop block; The positioning block is mounted on the base plate and serves as a positioning point for the heliostat connector to be measured in the X-axis direction; the stop block is mounted on the base plate and located within the detection space, serving as a positioning point for the heliostat connector to be measured in the Y-axis direction.

3. The fixture for detecting the spacing and parallelism of heliostat mounting holes as described in claim 1, characterized in that, The reference sliding unit includes a reference slide rail fixing block, a reference slide rail, and a reference slider. The reference slide rail fixing block is disposed on the vertical plate, the reference slide rail is disposed on the reference slide rail fixing block, and the reference slider is slidably connected to the reference slide rail; The reference unit includes a reference axis and a reference axis fixing block, and the reference axis is connected to the reference slider through the reference axis fixing block; The diameter accuracy of the reference shaft matches the diameter accuracy of the push rod mounting hole, and the guiding accuracy of the reference slide rail matches the guiding accuracy of the push rod mounting hole.

4. The fixture for detecting the spacing and parallelism of heliostat mounting holes as described in claim 1, characterized in that, The number of detection areas is two, which are respectively set on both sides of the positioning area in the Y-axis direction; The two floating detection structures are positioned opposite each other within the two detection areas.

5. The fixture for detecting the spacing and parallelism of heliostat mounting holes as described in claim 1, characterized in that, The detection sliding unit includes a detection slider, two detection guide rails, and two detection stops; The two detection guide rails are arranged in parallel between the two detection blocks; The detection slider is slidably connected to the two detection guide rails.

6. The fixture for detecting the spacing and parallelism of heliostat mounting holes as described in claim 1, characterized in that, The floating unit also includes several floating locking set screws; Each of the bottom positioning pin holes and the middle positioning pin holes is provided with a set screw hole, and the set screw hole is provided with a floating locking set screw for securing the corresponding floating positioning pin.

7. The fixture for detecting the spacing and parallelism of heliostat mounting holes as described in claim 1, characterized in that, The detection unit includes a detection shaft, several detection ball positioning blocks, detection balls, detection bolts, detection positioning pins, detection nuts, and detection set screws; The detection shaft is rotatably connected to the movable end of the floating unit; The detection ball positioning block is sleeved on the detection shaft and positioned by the detection set screw. Every two adjacent detection ball positioning blocks are fitted together to form a detection ball receiving space. Adjacent detection ball positioning blocks are locked together by the detection bolt and the detection nut. The detection ball is movably installed in the detection ball receiving space.

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