An axis control device, coordinate measuring device and method of measurement

Abstract

The application discloses an axis control device, a coordinate measuring device and a measuring method, relates to the technical field of bridge construction, and is used for assisting assembly of a guide beam and multiple steel beam segments. Each steel beam segment has four top surface edge mounting points after being processed. The axis control device comprises a prism head used for positioning a reference control point of the guide beam in cooperation with an external total station, a laser instrument used for locking a linear axis through the reference control point, and a scale stroke rod used for being vertically inserted into the control point, and the scale stroke rod is provided with a scale line. The laser instrument can be slidably sleeved on the scale stroke rod, and the prism head is arranged at the top end of the scale stroke rod. The top surface edge mounting points of the steel beam segment all fall on the linear axis. The axis control device and the coordinate measuring device can quickly, accurately and efficiently complete beam adjustment work, and provide technical support for overall rapid jacking construction.

Description

Technical Field

[0001] This invention relates to the field of bridge construction technology, specifically to an axis control device, a coordinate measuring device, and a measuring method. Background Technology

[0002] During the steel beam jacking construction, multiple steel beam segments are first hoisted to the jacking area for assembly. After the multiple steel beam segments and guide beams are assembled into a whole, the jacking operation is then carried out.

[0003] In related technologies, when multiple steel beam segments (also referred to as beam segments) are hoisted to the jacking area for assembly, the beam alignment often needs to be adjusted during the process of assembling the next steel beam segment to the previous one. Each adjustment requires the use of a total station to measure the three-dimensional coordinates of the axis points. This is slow, involves a large amount of measurement data for multiple steel beam segments, and poses safety risks due to the excessive hoisting time of the steel beam segments during the measurement waiting process. Furthermore, the overall alignment control efficiency of each steel beam segment is low.

[0004] Therefore, those skilled in the art urgently need to design a new measurement and control device that can quickly, accurately, and efficiently complete the beam adjustment work. Summary of the Invention

[0005] This application provides an axis control device, a coordinate measuring device, and a measuring method, which can quickly, accurately, and efficiently complete the beam adjustment work, providing technical support for the overall rapid jacking construction.

[0006] In a first aspect, embodiments of this application provide an axis control device for a steel beam segment before jacking. The axis control device is used to assist in assembling a guide beam and multiple steel beam segments. Each steel beam segment has four top edge mounting points after processing. The axis control device includes a prism lens for cooperating with an external total station to position the reference control point of the guide beam, a laser for locking the linear axis through the reference control point, and a scale rod for vertically inserting into the control point. The scale rod has scale lines. The laser can slide up and down on the scale rod, and the prism lens is located at the top of the scale rod. The top edge mounting points of the steel beam segments all fall on the linear axis.

[0007] Based on the above technical solution, the measurement and control device also includes a support rod, which supports the scale stroke rod and keeps the scale stroke rod vertical.

[0008] Based on the above technical solution, there are two support rods, and the top ends of the two support rods cross and are hinged to the top of the engraving stroke rod.

[0009] Based on the above technical solution, the scribing stroke rod is in the shape of a round rod, and its bottom end is provided with a pointed tip.

[0010] Based on the above technical solution, the side wall of the scribing stroke rod is provided with a vertical groove, the laser is slidably disposed along the vertical groove, the laser is provided with a butterfly bolt, and can be loosely or loosely fixed to the scribing stroke rod by means of the butterfly bolt.

[0011] Secondly, this application also discloses a coordinate measuring device, comprising:

[0012] A total station used to coordinate with the four reference control points on the prism positioning guide beam of the axis control device described above;

[0013] As described above, the axis control device has a reference control point of the guide beam inserted at the bottom of the scribing stroke rod, and the laser of the laser instrument is used to perform cross-line marking on another reference control point and the control point to be measured in two separate attempts.

[0014] A controller used to calculate the XYZ coordinates of the control point to be measured based on the oblique angle of two laser measurements, the known elevation of the laser, and two known coordinate points.

[0015] Based on the above technical solution, the guide beam includes four reference control points, namely a first left axis control point, a second left axis control point, a first right axis control point, and a second right axis control point; the guide beam and the first beam segment share the second left axis control point and the second right axis control point; the first beam segment and the second beam segment share the third left axis control point and the third right axis control point; the second beam segment and the third beam segment share the fourth left axis control point and the fourth right axis control point; the third beam segment and the fourth beam segment share the fifth left axis control point and the fifth right axis control point; the axis control device is used to determine the third left axis control point and the third right axis control point on the first beam segment based on the coordinates of the first left axis control point, the second left axis control point, the first right axis control point, and the second right axis control point.

[0016] Based on the above technical solution, the measurement and control device further includes a support rod, which supports the scribing stroke rod and keeps the scribing stroke rod vertical; there are two support rods, and the top ends of the two support rods cross and are hinged to the top of the scribing stroke rod; the scribing stroke rod is round and has a pointed tip at its bottom end.

[0017] Based on the above technical solution, the side wall of the scribing stroke rod is provided with a vertical groove, the laser is slidably disposed along the vertical groove, the laser is provided with a butterfly bolt, and can be loosely or loosely fixed to the scribing stroke rod by means of the butterfly bolt.

[0018] Thirdly, this application also discloses a measurement method based on the above-mentioned coordinate measuring device, comprising the following steps:

[0019] The total station, in conjunction with the axis control device, uses a prism lens to position four reference control points on the guide beam.

[0020] A reference control point is inserted at the bottom of the scribe line stroke rod of the axis control device, and the laser of the laser instrument performs crosshair marking on another reference control point to lock the linear axis and determine the Y-coordinate of the control point to be measured.

[0021] The laser of the laser instrument is used to draw cross lines on the control point to be tested.

[0022] The controller calculates the XZ coordinates of the control point to be measured based on the oblique angle of the two lasers, the known elevation of the lasers, and the known coordinates of the two reference control points.

[0023] The beneficial effects of the technical solutions provided in this application include:

[0024] The axis control device, coordinate measuring device, and measurement method of this application enable rapid, accurate, and efficient beam adjustment, providing technical support for rapid overall jacking construction. The axis control device first inserts scribe rods at four reference control points, and then uses an external total station to locate the coordinates of these four points. Next, the axis control device is inserted at the foremost reference control point, and a laser is used to target adjacent reference control points, locking onto a linear axis. These two linear axes provide a reference for the assembly of steel beam segments before jacking, quickly locating subsequent control points. Compared to existing technologies that require repeated measurements with a total station for each steel beam segment, this significantly reduces the workload and improves efficiency. The axis control device, coordinate measuring device, and measurement method of this application reduce the safety risks associated with steel beam hoisting, ensure the overall assembly alignment of the steel beam, and guarantee rapid project construction. Attached Figure Description

[0025] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0026] Figure 1 This is a schematic diagram of the structure of the measurement and control device provided in the embodiments of this application;

[0027] Figure 2 A schematic diagram of the axis control points for the measurement method provided in the embodiments of this application;

[0028] Figure 3 This is a schematic diagram illustrating the measurement of the coordinates of the control point to be measured based on two reference control points, provided as an embodiment of this application.

[0029] In the diagram: 1. Engraving stroke rod; 2. Laser device; 3. Prism lens; 4. Support rod;

[0030] 11. First left axis control point; 12. Second left axis control point; 13. Third left axis control point; 14. Fourth left axis control point; 15. Fifth left axis control point;

[0031] 21. First right axis control point; 22. Second right axis control point; 23. Third right axis control point; 24. Fourth right axis control point; 25. Fifth right axis control point;

[0032] 100, Axis control device; 200, Guide beam; 300, First beam segment; 400, Second beam segment; 500, Third beam segment; 600, Fourth beam segment; 700, Linear axis. Detailed Implementation

[0033] To enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present application, and not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present application.

[0034] This application provides an axis control device for steel beam segments before jacking, which can quickly, accurately, and efficiently complete beam adjustment work, providing technical support for overall rapid jacking construction.

[0035] like Figure 1 and Figure 2 As shown, this application discloses an embodiment of an axis control device for steel beam segments before jacking, which is mainly used to assist in completing the assembly work between steel beam segments before jacking, so as to ensure that the steel beam segments achieve the ideal alignment after assembly.

[0036] The axis control device 100 is used to assist in the assembly of the guide beam 200 and multiple steel beam segments. Each steel beam segment has four top edge mounting points after processing.

[0037] Specifically, the guide beam 200 includes four reference control points: a first left axis control point 11, a second left axis control point 12, a first right axis control point 21, and a second right axis control point 22. The guide beam 200 intersects with the top edge mounting point of the first beam segment 300 to form the second left axis control point 12 and the second right axis control point 22. The first beam segment 300 intersects with the top edge mounting point of the second beam segment 400 to form the third left axis control point 13 and the third right axis control point 23. The second beam segment 400 intersects with the top edge mounting point of the third beam segment 500 to form the fourth left axis control point 14 and the fourth right axis control point 24. The third beam segment 500 intersects with the top edge mounting point of the fourth beam segment 600 to form the fifth left axis control point 15 and the fifth right axis control point 25.

[0038] The axis control device includes a prism lens 3, a laser instrument 2, and a scribing travel rod 1. The prism lens 3 is used to cooperate with the external total station to position the reference control point of the guide beam 200. Figure 2 The first left axis control point 11, the second left axis control point 12, the first right axis control point 21, and the second right axis control point 22 are located in the center. The laser instrument 2 is used to lock the linear axis 700 via the reference control points, thus achieving the desired control point. Figure 2 Rapid positioning of the third left axis control point 13, the third right axis control point 23, the fourth left axis control point 14, the fourth right axis control point 24, the fifth left axis control point 15, and the fifth right axis control point 25. A graduated travel rod 1 is vertically inserted at the control point, and the graduated travel rod 1 has graduated lines. A laser instrument 2 can slide up and down on the graduated travel rod 1, and a prism lens 3 is set at the top of the graduated travel rod 1. The mounting points on the top edge of the steel beam segment all fall on the linear axis 700. Specifically, there are two linear axes 700, left and right, and all the top edge mounting points symmetrically fall on the two linear axes 700.

[0039] The axis control device of this application can quickly, accurately, and efficiently complete the beam adjustment work, providing technical support for the overall rapid jacking construction. The axis control device first inserts the scribe line travel rod 1 into four reference control points, and then uses an external total station to locate the coordinates of the four reference control points. After that, the axis control device is inserted into the foremost reference control point, and the laser instrument 2 is aimed at the adjacent reference control point to lock a linear axis 700. The two linear axes 700 can provide a reference for the assembly work of the steel beam segments before jacking, and quickly locate the subsequent undetermined control points. Compared with the existing technology, which requires repeated measurement with a total station for each steel beam segment, this greatly reduces the amount of measurement work and improves the measurement efficiency.

[0040] Specifically, the scribing stroke rod 1 of the axis control device is inserted at the first left axis control point 11, and the laser 2 is aimed at the adjacent second left axis control point 12. That is, the left linear axis 700 is locked using the two known reference control points. The subsequent third left axis control point 13, fourth left axis control point 14 and fifth left axis control point 15 are all on the left linear axis 700.

[0041] The scribe line stroke rod 1 of the axis control device is inserted at the first right axis control point 21, and the laser 2 is aimed at the adjacent second right axis control point 22. That is, the right linear axis 700 is locked using the two known reference control points. The subsequent third right axis control point 23, fourth right axis control point 24 and fifth right axis control point 25 are all on the right linear axis 700.

[0042] In one embodiment, the measuring control device further includes a support rod 4, which supports the scribe line stroke rod 1 and keeps the scribe line stroke rod 1 vertical during the use of the axis control device.

[0043] Furthermore, there are two support rods 4, whose top ends cross and are hinged to the top of the scribe line stroke rod 1. The two support rods 4 facilitate triangular support, ensuring that the scribe line stroke rod 1 remains stably vertical.

[0044] Preferably, the engraving stroke rod 1 is round and has a pointed end.

[0045] In one embodiment, a vertical groove is provided on the side wall of the scribing stroke rod 1, the laser instrument 2 is slidably disposed along the vertical groove, and the laser instrument 2 is provided with a butterfly bolt, which can be loosely or loosely fixed to the scribing stroke rod 1.

[0046] The axis control device of this application has a vertical groove on the scribing stroke rod 1, which can prevent the laser instrument 2 from rotating circumferentially relative to the scribing stroke rod 1 after the linear axis 700 is locked, thus ensuring the accuracy of the linear axis 700.

[0047] Specifically, in some steel beam segments and the top surface of the guide beam are horizontal (i.e. Figure 3 In the embodiment where the straight line containing ABC is horizontal, that is, the Z-axis height of each steel beam segment is consistent according to the design line of the steel beam segment. After locking the two linear axes 700 directly through the axis control device, the XY coordinates can be quickly confirmed, while the Z-axis remains unchanged, which greatly improves the measurement efficiency before the jacking.

[0048] Furthermore, in cases where some steel beam segments and the top surface of the guide beam have a certain slope (i.e.) Figure 3 In the embodiment where the line containing ABC is horizontal, the Z-axis coordinate also needs to be considered.

[0049] For cases with inclination, this application also discloses an embodiment of a coordinate measuring device, wherein the axis control device includes a total station, a controller, and the aforementioned axis control device 100.

[0050] The total station is used in conjunction with the prism lens 3 of the axis control device 100 to position the four reference control points on the guide beam 200, namely the first left axis control point 11, the second left axis control point 12, the first right axis control point 21, and the second right axis control point 22, to obtain the coordinates of the four reference control points.

[0051] A reference control point is inserted into the bottom of the scale rod 1 of the coordinate measuring device, along with a guide beam 200. The laser of the laser instrument 2 is directed towards another reference control point to lock the linear axis 700. The laser of the laser instrument 2 is used to perform crosshair marking on the other reference control point and the control point to be measured twice. The first time is used to lock the linear axis 700, and the second time is used to perform crosshair marking on the control point to be measured on the linear axis 700. Specifically, the laser instrument 2 remains stationary in the same position, only changing the angle of the laser beam. The linear axis 700 can help directly confirm the Y-coordinate of the control point to be measured.

[0052] The controller is used to calculate the XY coordinates of the control point to be measured based on the oblique angle of the laser instrument 2 twice, the known elevation of the laser instrument 2, and the two known coordinate points, thereby obtaining the XYZ coordinates.

[0053] Specifically, the tilt angles of laser instrument 2 are known in both cases. The tilt angle can be transmitted to the controller by laser instrument 2 itself, or it can be transmitted to the controller via a tilt sensor. With the linear axis locked at 700°, only the tilt angle is changed, without altering the elevation of laser instrument 2.

[0054] Specifically, such as Figure 2 As shown, the steel beam segments are measured and assembled sequentially from front to back. Figure 3 As shown, given two points A and B, determine the coordinates of the control point C to be measured.

[0055] The coordinate measuring device of this application, for cases where steel beam segments have an inclination, can insert a reference control point of the guide beam 200 at the bottom end of the engraving stroke rod 1 of the axis control device 100, and lock the linear axis 700 by directing the laser of the laser instrument 2 toward another reference control point. The linear axis 700 ensures that the Y-axis coordinate is consistent with the reference control point. Then, by changing the inclination angle of the laser instrument 2, the coordinates of the control point to be measured can be quickly calculated, thereby quickly bringing the coordinates of the control point to be measured to be consistent with the design coordinates, greatly improving the measurement efficiency before jacking.

[0056] Regarding the coordinate measuring device, specifically, the guide beam 200 includes four reference control points, namely the first left axis control point 11, the second left axis control point 12, the first right axis control point 21, and the second right axis control point 22.

[0057] The guide beam 200 and the first beam segment 300 share a second left axis control point 12 and a second right axis control point 22. That is, the intersection of the top edge mounting point of the guide beam 200 and the first beam segment 300 forms the second left axis control point 12 and the second right axis control point 22.

[0058] The first beam segment 300 and the second beam segment 400 share a third left axis control point 13 and a third right axis control point 23. That is, the intersection of the top edge installation points of the first beam segment 300 and the second beam segment 400 forms the third left axis control point 13 and the third right axis control point 23.

[0059] The second beam segment 400 and the third beam segment 500 share a fourth left axis control point 14 and a fourth right axis control point 24. That is, the intersection of the top edge mounting points of the second beam segment 400 and the third beam segment 500 forms the fourth left axis control point 14 and the fourth right axis control point 24.

[0060] The third beam segment 500 and the fourth beam segment 600 share a fifth left axis control point 15 and a fifth right axis control point 25. That is, the intersection of the top edge mounting points of the third beam segment 500 and the fourth beam segment 600 forms the fifth left axis control point 15 and the fifth right axis control point 25.

[0061] The axis control device determines the third left axis control point 13 and the third right axis control point 23 of the first beam segment 300 based on the coordinates of the first left axis control point 11, the second left axis control point 12, the first right axis control point 21 and the second right axis control point 22.

[0062] Then, align the installation point on one side of the top edge of the second beam segment 400 with the third left axis control point 13 and the third right axis control point 23. After that, determine the fourth left axis control point 14 and the fourth right axis control point 24 through calculation, and so on.

[0063] Regarding the coordinate measuring device, in one embodiment, the measuring control device further includes a support rod 4, which supports the scribe line travel rod 1 and keeps the scribe line travel rod 1 vertical during the use of the axis control device.

[0064] Regarding the coordinate measuring device, furthermore, there are two support rods 4, whose top ends cross and are hinged to the top of the scale travel rod 1. The two support rods 4 facilitate triangular support, ensuring that the scale travel rod 1 remains stably vertical.

[0065] Regarding the coordinate measuring device, preferably, the engraving stroke rod 1 is round and has a pointed end.

[0066] Regarding the coordinate measuring device, in one embodiment, a vertical groove is provided on the side wall of the scribing stroke rod 1, the laser instrument 2 is slidably disposed along the vertical groove, the laser instrument 2 is provided with a wing bolt, and can be loosely or loosely fixed to the scribing stroke rod 1 by means of the wing bolt.

[0067] The axis control device of this application has a vertical groove on the scribing stroke rod 1, which can prevent the laser instrument 2 from rotating circumferentially relative to the scribing stroke rod 1 after the linear axis 700 is locked, thus ensuring the accuracy of the linear axis 700.

[0068] This application also discloses a measurement method for the above-mentioned coordinate measuring device, comprising the following steps:

[0069] The total station, in conjunction with the prism lens 3 of the axis control device 100, positions four reference control points on the guide beam 200 to obtain the coordinates of the four reference control points.

[0070] The bottom end of the scribing stroke rod 1 of the axis control device 100 is inserted into a reference control point of the guide beam 200. The laser of the laser instrument 2 performs cross-cutting on another reference control point to lock the linear axis 700 and determine the Y-coordinate of the control point to be measured.

[0071] The laser of laser instrument 2 is used to draw cross lines on the control point to be tested.

[0072] The controller calculates the XZ coordinates of the control point to be measured based on the oblique angle of the laser instrument 2, the known elevation of the laser instrument 2, and the known coordinates of the two reference control points.

[0073] The measurement process proceeds sequentially from beginning to end.

[0074] The measurement method described in this application enables rapid, accurate, and efficient beam adjustment, providing technical support for rapid overall jacking construction. The axis control device first inserts the scribe line travel rod 1 at four reference control points, and then uses an external total station to locate the coordinates of these four reference control points. Next, the axis control device is inserted at the foremost reference control point, and the laser instrument 2 is aimed at the adjacent reference control point to lock a linear axis 700. These two linear axes 700 provide a reference for the assembly of steel beam segments before jacking, quickly locating subsequent control points to be determined. Compared to existing technologies where each steel beam segment requires repeated measurements using a total station, this method significantly reduces the workload and improves measurement efficiency.

[0075] In the description of this application, it should be noted that the terms "upper," "lower," etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application. Unless otherwise expressly specified and limited, the terms "installed," "connected," and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication between two elements. For those skilled in the art, the specific meaning of the above terms in this application can be understood according to the specific circumstances.

[0076] It should be noted that in this application, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0077] The above description is merely a specific embodiment of this application, enabling those skilled in the art to understand or implement this application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of this application. Therefore, this application is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features claimed herein.

Claims

1. A device for controlling the axis of a steel beam segment before jacking, characterized in that: The axis control device (100) is used to assist in the assembly of the guide beam (200) and multiple steel beam segments; each steel beam segment has four top edge mounting points after processing; The axis control device (100) includes a prism lens (3) for cooperating with the positioning guide beam (200) of an external total station to establish a reference control point, a laser (2) for locking the linear axis (700) through the reference control point, and a scale rod (1) for vertically inserting into the control point. The scale rod (1) has scale lines. The laser (2) can slide up and down on the scale rod (1). The prism lens (3) is located at the top of the scale rod (1). The mounting points of the top edge of the steel beam segment all fall on the linear axis (700). The bottom end of the engraving stroke rod (1) of the axis control device (100) is inserted into a reference control point of the guide beam (200). The laser of the laser instrument (2) is used to perform cross-line marking on another reference control point and the control point to be measured twice. The controller is used to calculate the XYZ coordinates of the control point to be measured based on the oblique angle of the two laser instruments (2), the known elevation of the laser instrument (2), and the two known coordinate points.

2. The axis control device for a steel beam segment before jacking as described in claim 1, characterized in that: The axis control device (100) also includes a support rod (4) that supports the engraving stroke rod (1) and keeps the engraving stroke rod (1) vertical.

3. The axis control device for a steel beam segment before jacking as described in claim 2, characterized in that: The number of support rods (4) is two, and the top ends of the two support rods (4) are crossed and hinged to the top of the engraved stroke rod (1).

4. The axis control device for a steel beam segment before jacking as described in claim 1, characterized in that: The engraving stroke rod (1) is round and has a pointed end.

5. The axis control device for a steel beam segment before jacking as described in claim 1, characterized in that: The side wall of the engraving stroke rod (1) is provided with a vertical groove, the laser (2) is slidably set along the vertical groove, the laser (2) is provided with a butterfly bolt, and is fixed to the engraving stroke rod (1) by tightening and loosening the butterfly bolt.

6. A coordinate measuring device, characterized in that, Include: A total station for positioning four reference control points on the guide beam (200) of the prism lens (3) in conjunction with the axis control device (100) as described in claim 1; The axis control device (100) as described in claim 1.

7. A coordinate measuring device as described in claim 6, characterized in that, The guide beam (200) includes four reference control points, namely the first left axis control point (11), the second left axis control point (12), the first right axis control point (21), and the second right axis control point (22). The guide beam (200) and the first beam segment (300) share a second left axis control point (12) and a second right axis control point (22); the first beam segment (300) and the second beam segment (400) share a third left axis control point (13) and a third right axis control point (23); the second beam segment (400) and the third beam segment (500) share a fourth left axis control point (14) and a fourth right axis control point (24); the third beam segment (500) and the fourth beam segment (600) share a fifth left axis control point (15) and a fifth right axis control point (25). The axis control device is used to determine the third left axis control point (13) and the third right axis control point (23) on the first beam segment (300) based on the coordinates of the first left axis control point (11), the second left axis control point (12), the first right axis control point (21), and the second right axis control point (22).

8. A coordinate measuring device as described in claim 6, characterized in that: The axis control device (100) also includes a support rod (4) that supports the engraving stroke rod (1) and keeps the engraving stroke rod (1) vertical; There are two support rods (4), and the top ends of the two support rods (4) are crossed and hinged to the top of the scribing stroke rod (1); the scribing stroke rod (1) is round and has a pointed end.

9. A coordinate measuring device as described in claim 6, characterized in that: The side wall of the engraving stroke rod (1) is provided with a vertical groove, the laser (2) is slidably set along the vertical groove, the laser (2) is provided with a butterfly bolt, and is fixed to the engraving stroke rod (1) by tightening and loosening the butterfly bolt.

10. A measurement method based on the coordinate measuring device of claim 6, characterized in that, Includes the following steps: The total station, in conjunction with the prism lens (3) of the axis control device (100), positions four reference control points on the guide beam (200); The bottom end of the engraving stroke rod (1) of the axis control device (100) is inserted with a reference control point of the guide beam (200). The laser of the laser instrument (2) performs cross-cutting on another reference control point, locks the linear axis (700), and determines the Y-coordinate of the control point to be measured. The laser of the laser instrument (2) is used to draw cross lines on the control point to be tested; The controller calculates the XZ coordinates of the control point to be measured based on the oblique angle of the two laser instruments (2), the known elevation of the laser instrument (2), and the known coordinates of the two reference control points.

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