Offshore wind turbine foundation pipe frame and visual installation method

Abstract

The present invention discloses an offshore wind turbine foundation duct frame and a visual installation method, and relates to the technical field of offshore wind turbines. Strong water flow may push the installation ship, resulting in deviation in the plane position of the duct. Therefore, the problem of reduced accuracy may occur under offshore operating conditions, affecting the accuracy of the plane position. The present invention improves the installation accuracy by accurately determining the installation area and the positions of various components, such as establishing and fixing the positions of the installation base and the long plug tip; utilizing the visual installation method, commanding and adjusting through camera observation, solves the problem of low installation accuracy, and ensures the stability of the wind turbine foundation; in addition, by accurately adjusting the position of the positioning seat, four positioning seats can be driven at the same time and the spacing can be kept unchanged, thereby improving the installation efficiency; and by fixing the coordinate positioning plug tip and initially limiting the positioning pile, the interference degree of the installation is reduced, and finally accurate installation and positioning are completed.

Description

Technical Field

[0001] The present invention relates to the technical field of offshore wind turbine installation, and in particular to an offshore wind turbine foundation pipe frame and a visual installation method. Background Art

[0002] As the global demand for clean energy grows, offshore wind power, as a sustainable way of energy development, is receiving widespread attention. Compared with land-based wind power, offshore wind power has the advantages of high wind speed, stable wind resources, and no land occupation, and its development scale is constantly expanding. One of the core construction of offshore wind farms is the reliable installation of wind turbine foundations, and the installation quality of wind turbine foundation ducts plays a vital role in the stability of the entire wind turbine foundation and the long-term safe operation of the wind turbine.

[0003] In this regard, the patent document with publication number CN116717430A discloses a method for assembling a wind turbine bottom section tower barrel in a yard, including step one: construction preparation, S1: construction preparation refers to a series of necessary inspections, verifications and tests on the pre-assembly site, wind turbine equipment, lifting equipment, equipment tooling and slings, and transport barges before the bottom tower turning over and buckling operation is implemented to ensure the smooth implementation of the bottom tower turning over and buckling operation, S2: pre-assembly site survey and processing, roadblocks and interfering obstacles at the assembly site must be cleared in advance, and the entire pre-assembly site fully meets the operation requirements, S3: check whether the equipment tooling and slings are intact and undamaged, and test the lifting equipment to avoid safety accidents such as the wind turbine equipment being unable to be used during the turning over and buckling process, causing the wind turbine equipment to be suspended in the air. The invention can be completed on shore in advance, while saving the construction period of the main ship engine, it also ensures the construction quality, and has high economic benefits and promotion.

[0004] However, despite the continuous development of existing technologies and processes, the installation of offshore wind turbine foundation ducts still faces many challenges. In terms of plane position control, due to the complex offshore environment, natural factors such as water currents, waves, and tides always affect the installation process. Strong water currents may push the installation ship, causing deviations in the plane position of the duct. Therefore, under offshore operating conditions, there may be a problem of reduced accuracy, affecting the accuracy of the plane position.

[0005] In view of the above problems, an offshore wind turbine foundation conductor frame and a visual installation method are proposed. Summary of the invention

[0006] The purpose of the present invention is to provide an offshore wind turbine foundation pipe frame and a visual installation method, which solves the problem of low installation accuracy in the background technology.

[0007] To achieve the above object, the present invention provides the following technical solution: an offshore wind turbine foundation conduit frame, comprising a mounting base, a camera base is mounted on the outer wall of the mounting base, a camera assembly is embedded in the camera base, the camera base and the camera assembly are slidably connected, a long plug tip is embedded in the mounting base, and a conduit frame body is mounted on the top of the mounting base;

[0008] The mounting base is embedded with a regulating component, the regulating component comprises a coordinate positioning plug tip, the bottom end of the coordinate positioning plug tip is connected to a positioning pile, a reserved groove is provided inside the positioning pile, a threaded rod is embedded inside the reserved groove, the threaded rod and the reserved groove are rotatably connected, a sliding block is connected to the outer surface of the threaded rod, the positioning pile is connected to a transmission tooth, a transverse pressure rod is movably connected to the inner wall of the mounting base, a latching gear rod is connected to the transverse pressure rod, the latching gear rod and the transmission tooth are meshed with each other, a traction cable is connected to the sliding block, and a sliding sheet is connected to the side of the traction cable away from the sliding block;

[0009] One side of the sliding sheet is connected to a longitudinal track groove, one side of the longitudinal track groove is connected to a positioning seat, one side of the longitudinal track groove is connected to a transverse track groove, the angle between the longitudinal track groove and the transverse track groove is degrees, and the outer surface of the long plug tip is connected to a display table;

[0010] The outer surface of the coordinate positioning plug tip is connected with a control component, and the control component includes a rotating cylinder, the bottom end of the rotating cylinder is connected with a limit block, and the transverse pressure rod is between the limit blocks.

[0011] Preferably, four groups of long plug tips are provided at the bottom end of the mounting base, the mounting base and the long plug tips are longitudinally slidably connected, and the long plug tips are used to fix the mounting base.

[0012] Preferably, the bottom end of the positioning pile is arranged in a cross shape, the threaded rod is embedded in the reserved groove, and the thread patterns at the left and right ends of the threaded rod are opposite.

[0013] Preferably, a transmission tooth is fixedly connected to the middle position of the threaded rod, and a groove is formed on the positioning pile, in which the transmission tooth is embedded.

[0014] Preferably, the side of the positioning seat close to the positioning pile is respectively fixedly connected with a longitudinal track groove and a transverse track groove, and sliding plates are embedded in the longitudinal track groove and the transverse track groove, and the sliding plates and the longitudinal track groove or the sliding plates and the transverse track groove are slidably connected.

[0015] Preferably, two traction cables are arranged on the sliding plate, and each traction cable is arranged obliquely on the sliding plate.

[0016] Preferably, two groups of sliding blocks are sleeved on the threaded rod, one group of sliding blocks is sleeved on the forward thread of the threaded rod, and the other group of sliding blocks is sleeved on the reverse thread of the threaded rod. The rotation of the threaded rod drives the two groups of sliding blocks to move in opposite directions.

[0017] Preferably, there is a one-to-one correspondence between the traction cables and the sliding blocks, and the sliding sheet, the traction cables and the sliding blocks wrap the gear rod inside them.

[0018] Visual installation method of offshore wind turbine foundation jacket:

[0019] First, the measuring equipment is installed, the equipment is debugged and the GNSS installation position is determined, with a positioning accuracy of centimeters. After the transport ship is docked, the camera assembly is installed on the installation base;

[0020] The crane ship uses a sling to lift the installation base to the installation area and lower it, stopping when it is - meters away from the pile top. The surveyor checks the measurement and positioning equipment and signals, and prepares for underwater docking after confirming that they are correct;

[0021] Before underwater docking, confirm the coordinates and torsion angles of the four piles of the installation base. After they are correct, continue to descend, observe the relative positions through the camera, and command the boom and cable to make precise adjustments;

[0022] The image is transmitted back through the camera assembly, and the installation base is adjusted into position using the guy rope; after the installation base is in place, the long plug tip is lowered steadily; then the catheter frame body is suspended by a crane, and the catheter frame body and the long plug tip are connected to complete the installation.

[0023] Preferably, confirm the four pile coordinates and torsion angles of the installation base, first drop the coordinate positioning tip to the specified area, select the center point of the specified area, fix the position of the coordinate positioning tip after it drops, and then adjust the position of the positioning seat. The position adjustment of the positioning seat is carried out along the X-axis and Y-axis, the X-axis is the lateral movement, and the Y-axis is the vertical movement. The position of the long tip is established by adjusting the positioning seat, thereby realizing the positioning of the coordinate point.

[0024] Compared with the prior art, the present invention has the following beneficial effects:

[0025] The offshore wind turbine foundation conductor frame and visual installation method provided by the present invention improve the installation accuracy by accurately determining the installation area and the positions of each component, such as establishing and fixing the position of the installation base and the long plug tip; using the visual installation method, the adjustment is directed by camera observation, which solves the problem of low installation accuracy and ensures the stability of the wind turbine foundation. At the same time, the camera assembly is used to replace the underwater observation of divers, saving diving operation time and cost, and reducing construction safety risks. During the installation process, by accurately adjusting the position of the positioning seat, four positioning seats can be driven at the same time and the spacing can be kept unchanged, which improves the installation efficiency, and the coordinate positioning plug tip is fixed and the positioning pile is initially limited to reduce the interference degree of the installation, and finally complete the accurate installation positioning. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0027] Figure 2 It is a schematic diagram of the structure of the installation base and the sling of the present invention;

[0028] Figure 3 It is a structural schematic diagram of the camera base and the camera assembly of the present invention;

[0029] Figure 4 This is a schematic diagram of the structure of the coordinate positioning plug tip and the positioning pile of the present invention;

[0030] Figure 5 It is a schematic diagram of the structure of the transmission gear and the traction cable of the present invention;

[0031] Figure 6 It is a schematic diagram of the top view of the rotating cylinder and the limiting block of the present invention;

[0032] Figure 7 It is a schematic diagram of the structure of the positioning seat and the longitudinal track groove of the present invention;

[0033] Figure 8 It is a schematic structural diagram of the transmission gear and the latching gear rod of the present invention.

[0034] In the figure: 11. Mounting base; 12. Camera base; 13. Camera assembly; 14. Sling; 15. Long plug tip; 16. Conduit frame body; 2. Control assembly; 21. Coordinate positioning plug tip; 22. Positioning pile; 23. Threaded rod; 24. Transmission gear; 25. Sliding block; 26. Traction cable; 27. Sliding sheet; 28. Positioning seat; 29. ​​Display table; 3. Control assembly; 31. Rotating cylinder; 32. Limiting block; 33. Longitudinal track groove; 34. Transverse track groove; 35. Gear rod; 36. Transverse pressure rod; 37. Reserved groove. DETAILED DESCRIPTION

[0035] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0036] In order to further understand the content of the present invention, the present invention is described in detail in conjunction with the accompanying drawings.

[0037] Combination Figure 1-Figure 8 The offshore wind turbine foundation pipe frame of the present invention comprises a mounting base 11, a camera base 12 is mounted on the outer wall of the mounting base 11, a camera assembly 13 is embedded in the camera base 12, the camera base 12 and the camera assembly 13 are slidably connected, a long plug tip 15 is embedded in the mounting base 11, a pipe frame body 16 is mounted on the top of the mounting base 11, four groups of long plug tips 15 are arranged at the bottom of the mounting base 11, the mounting base 11 and the long plug tips 15 are longitudinally slidably connected, and the long plug tips 15 are used to fix the mounting base 11;

[0038] When installing the catheter frame body 16, the position of the mounting base 11 is first determined. After the position of the mounting base 11 is determined, the mounting base 11 and the catheter frame body 16 are fixed together by bolts. When the mounting base 11 is sleeved on the long plug tip 15 by a crane, the position of the mounting base 11 is limited by the long plug tip 15, and the two are also locked together by bolts.

[0039] The regulating component 2 is embedded in the mounting base 11, and the regulating component 2 includes a coordinate positioning plug tip 21, and a positioning pile 22 is connected to the bottom end of the coordinate positioning plug tip 21. A reserved groove 37 is provided inside the positioning pile 22, and a threaded rod 23 is embedded in the reserved groove 37. The threaded rod 23 and the reserved groove 37 are rotatably connected. The bottom end of the positioning pile 22 is set in a cross shape, and the threaded rod 23 is embedded in the reserved groove 37. The left and right ends of the threaded rod 23 have opposite thread patterns. The outer surface of the threaded rod 23 is connected to a sliding block 25, and two groups of sliding blocks 25 are sleeved on the threaded rod 23, one group of sliding blocks 25 is sleeved on the positive thread of the threaded rod 23, and the other group of sliding blocks 25 is sleeved on the reverse thread of the threaded rod 23. The rotation of the threaded rod 23 drives the two groups of sliding blocks 25 toward each other. The traction cable 26 and the sliding block 25 are in one-to-one correspondence. The sliding plate 27, the traction cable 26 and the sliding block 25 wrap the toothed rod 35 inside. The positioning pile 22 is connected with a transmission tooth 24. The middle position of the threaded rod 23 is fixedly connected with the transmission tooth 24. The positioning pile 22 is provided with a notch, and the transmission tooth 24 is embedded in the notch. A transverse pressure rod 36 is movably connected to the inner wall of the mounting base 11. The transverse pressure rod 36 is connected with the toothed rod 35. The toothed rod 35 and the transmission tooth 24 are meshed with each other. The sliding block 25 is connected with a traction cable 26. The side of the traction cable 26 away from the sliding block 25 is connected with a sliding plate 27. Two traction cables 26 are arranged on the sliding plate 27, and each traction cable 26 is tiltedly arranged on the sliding plate 27.

[0040] When installing the mounting base 11, it is first necessary to fix the position of the long insert tip 15. The specific operation is as follows:

[0041] First, the installation area is determined. After the appropriate installation area is determined, the center point in the area is found. After the appropriate center point is selected, the coordinate positioning plug 21 is embedded into the riverbed on the seabed. The falling position point is determined by the coordinate positioning plug 21. Then, the coordinate positioning plug 21 is rotated to drive the positioning pile 22 to rotate. The rotating positioning pile 22 drives the flow positioning seat 28 to rotate along the coordinate positioning plug 21 as the axis. After the rotation, the positioning seat 28 is established in a suitable position. When the positions of the four groups of positioning seats 28 are established, the coordinate positioning plug 21 is continued to be pressed down so that the coordinate positioning plug 21 drives the positioning pile 22 to descend. When the positioning pile 22 descends to contact the riverbed, it stops falling. At this time, the positions of the four groups of positioning seats 28 are also established. In order to further improve the accuracy of the installation, the position of the positioning seat 28 needs to be fine-tuned.

[0042] During fine tuning, it is completed by combining the regulating component 2 and the controlling component 3. The specific operations are as follows:

[0043] The outer surface of the coordinate positioning plug tip 21 is connected with a control component 3, and the control component 3 includes a rotating cylinder 31, and the bottom end of the rotating cylinder 31 is connected with a limit block 32, and a transverse pressure rod 36 is between the limit blocks 32;

[0044] One side of the sliding piece 27 is connected to a longitudinal track groove 33, one side of the longitudinal track groove 33 is connected to a positioning seat 28, one side of the longitudinal track groove 33 is connected to a transverse track groove 34, the side of the positioning seat 28 close to the positioning pile 22 is respectively fixedly connected to the longitudinal track groove 33 and the transverse track groove 34, the longitudinal track groove 33 and the transverse track groove 34 are both embedded with the sliding piece 27, the sliding piece 27 and the longitudinal track groove 33 or the sliding piece 27 and the transverse track groove 34 are slidably connected, the angle between the longitudinal track groove 33 and the transverse track groove 34 is 90 degrees, and the outer surface of the long plug tip 15 is connected to the display table 29.

[0045] Regarding the precise adjustment of the position of the positioning seat 28, for example, if the overall position of the positioning seat 28 needs to be moved along one side of the Y-axis, the lateral pressure rod 36 is embedded between the limit blocks 32 by rotating the rotating cylinder 31, and then the limit blocks 32 are pressed downward so that the limit blocks 32 are pressed onto the lateral pressure rod 36. By pressing down the limit blocks 32, the lateral pressure rod 36 is driven to descend. When the lateral pressure rod 36 descends, the tooth rod 35 is driven to descend. When the tooth rod 35 descends, the transmission gear 24 is driven to rotate. The rotation of the transmission gear 24 drives the threaded rod 23, so that the two sliding blocks 25 gradually move away from each other. At this time, the distance between the sliding blocks 25 pulls the traction cable 26, and at the same time, the sliding sheet 27 is pulled, and finally the positioning seat 28 is pulled to move to the right side. As the rotation of the transmission tooth 24 drives the positioning seat 28 to continuously move to the right side, the moving distance is also controlled by the descending degree of the card tooth rod 35 of the positioning seat 28. After rotating to a suitable position, in order to avoid deviation again, the rotation of the transmission tooth 24 is limited by the locking structure; if it is necessary to continue to move in the X-axis direction, the rotating cylinder 31 is rotated to make the limit block 32 press onto another group of card tooth rods 35, and the card tooth rods 35 can be adjusted by pressing them. There are two groups of card tooth rods 35, each group has four, which respectively control the four positioning seats 28 to move in the X-axis direction and the Y-axis direction.

[0046] In order to adapt to the movement of the positioning seat 28 in the X-axis direction and the Y-axis direction, the sliding plate 27 is embedded in the inside of the horizontal track groove 34 and slides to adapt to the movement in the Y-axis direction. In addition, the sliding plate 27 is embedded in the inside of the longitudinal track groove 33 and slides to adapt to the movement in the X-axis direction.

[0047] Since the downward pressure of the limit block 32 can simultaneously drive the four positioning seats 28 during adjustment, the spacing between the positioning seats 28 will not change, and there is no need to make continuous adjustments for subsequent installation work, which greatly improves the efficiency of the installation work. After the coordinate positioning plug tip 21 is fixed, the positioning seat 28 is preliminarily limited again by the positioning pile 22, so that the degree of interference during installation is reduced. Finally, after fine adjustment, the four long plug tips 15 embedded in the positioning seat 28 are embedded deep into the riverbed, and the installation positioning is finally completed.

[0048] Visual installation method of offshore wind turbine foundation jacket,

[0049] First, the measuring equipment is installed, the equipment is debugged and the GNSS installation position is determined, with a positioning accuracy of 3 cm; after the transport ship is docked, the camera assembly 13 is installed on the installation base 11;

[0050] The crane ship uses a sling 14 to lift the installation base 11 to the installation area and lower it, stopping when it is 2-3 meters away from the pile top. The surveyor checks the measurement and positioning equipment and signals, and prepares for underwater docking after confirming that they are correct;

[0051] Before underwater docking, confirm the coordinates and torsion angles of the four piles of the installation base 11. After they are correct, continue to descend, observe the relative positions through the camera, and command the boom and the cable to adjust accurately;

[0052] The camera assembly 13 transmits images and uses the cable wind rope to adjust the installation base 11 into position; after the installation base 11 is in position, the long plug tip 15 is lowered steadily; then the catheter frame body 16 is suspended by a crane, and the catheter frame body 16 and the long plug tip 15 are connected to complete the installation;

[0053] Confirm the four pile coordinates and torsion angles of the mounting base 11, first drop the coordinate positioning tip 21 to the designated area, select the center point of the designated area, fix the coordinate positioning tip 21 after it drops, and then adjust the position of the positioning seat 28. The position adjustment of the positioning seat 28 is carried out along the X-axis and Y-axis, the X-axis is the lateral movement, and the Y-axis is the vertical movement. By adjusting the positioning seat 28, the position of the long tip 15 is established, and the positioning of the coordinate point is realized.

[0054] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0055] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An offshore wind turbine foundation pipe frame, comprising a mounting base (11), characterized in that: A camera base (12) is mounted on the outer wall of the mounting base (11), a camera assembly (13) is embedded in the interior of the camera base (12), the camera base (12) and the camera assembly (13) are slidably connected, a long plug tip (15) is embedded in the interior of the mounting base (11), and a catheter frame body (16) is mounted on the top end of the mounting base (11); A regulating component (2) is embedded in the interior of the mounting base (11), and the regulating component (2) comprises a coordinate positioning plug tip (21), the bottom end of the coordinate positioning plug tip (21) is connected to a positioning pile (22), a reserved groove (37) is provided in the interior of the positioning pile (22), a threaded rod (23) is embedded in the interior of the reserved groove (37), the threaded rod (23) and the reserved groove (37) are rotatably connected, a sliding block (25) is connected to the outer surface of the threaded rod (23), a transmission tooth (24) is connected to the positioning pile (22), a transverse pressure rod (36) is movably connected to the inner wall of the mounting base (11), a latching tooth rod (35) is connected to the transverse pressure rod (36), the latching tooth rod (35) and the transmission tooth (24) are meshed with each other, a traction cable (26) is connected to the sliding block (25), and a sliding sheet (27) is connected to the side of the traction cable (26) away from the sliding block (25); One side of the sliding piece (27) is connected to a longitudinal track groove (33), one side of the longitudinal track groove (33) is connected to a positioning seat (28), one side of the longitudinal track groove (33) is connected to a transverse track groove (34), the side of the positioning seat (28) close to the positioning pile (22) is respectively fixedly connected to the longitudinal track groove (33) and the transverse track groove (34), the longitudinal track groove (33) and the transverse track groove (34) are both embedded with the sliding piece (27), the sliding piece (27) and the longitudinal track groove (33) or the sliding piece (27) and the transverse track groove (34) are slidably connected, the angle between the longitudinal track groove (33) and the transverse track groove (34) is 90 degrees, and the outer surface of the long plug tip (15) is connected to a display table (29); The bottom end of the positioning pile (22) is arranged in a cross shape, the left and right ends of the threaded rod (23) have opposite thread patterns, a transmission tooth (24) is fixedly connected to the middle position of the threaded rod (23), and a notch is provided on the positioning pile (22), in which the transmission tooth (24) is embedded; Two traction cables (26) are arranged on the sliding plate (27), and each traction cable (26) is arranged obliquely on the sliding plate (27). Two groups of sliding blocks (25) are sleeved on the threaded rod (23), wherein one group of sliding blocks (25) is sleeved on the positive thread of the threaded rod (23), and the other group of sliding blocks (25) is sleeved on the reverse thread of the threaded rod (23). The threaded rod (23) rotates to drive the two groups of sliding blocks (25) to move in opposite directions. The traction cables (26) and the sliding blocks (25) correspond to each other one by one. The sliding plate (27), the traction cables (26) and the sliding blocks (25) wrap the toothed rod (35) inside. The outer surface of the coordinate positioning plug tip (21) is connected to a control assembly (3), the control assembly (3) comprising a rotating cylinder (31), the bottom end of the rotating cylinder (31) is connected to a limit block (32), and the transverse pressure rod (36) is located between the limit blocks (32).

2. The offshore wind turbine foundation pipe frame according to claim 1, characterized in that: Four groups of long plug tips (15) are arranged at the bottom end of the mounting base (11), the mounting base (11) and the long plug tips (15) are longitudinally slidably connected, and the long plug tips (15) are used to fix the mounting base (11).

3. The visual installation method of the offshore wind turbine foundation jacket according to any one of claims 1 to 2, characterized in that: First, the measuring equipment is installed, the equipment is debugged and the GNSS installation position is determined, with a positioning accuracy of 3 centimeters; after the transport ship is docked, the camera assembly (13) is installed on the installation base (11); The crane vessel uses a sling (14) to lift the installation base (11) to the installation area and lower it, stopping when it is 2-3 meters away from the pile top. The surveying personnel check the measurement positioning equipment and signals, and prepare for underwater docking after confirming that they are correct; Before underwater docking, confirm the coordinates and torsion angles of the four piles of the mounting base (11). After they are correct, continue to descend, observe the relative positions through the camera, and command the precise adjustment of the boom and the cable rope; The image is transmitted back through the camera assembly (13), and the installation base (11) is adjusted into position using a cable wind rope; after the installation base (11) is in position, the long plug tip (15) is lowered steadily; and then the catheter frame body (16) is suspended by a crane, and the catheter frame body (16) and the long plug tip (15) are connected to complete the installation.

4. The visual installation method of the offshore wind turbine foundation pipe frame according to claim 3 is characterized in that: Confirm the four pile coordinates and torsion angles of the installation base (11), first drop the coordinate positioning plug tip (21) to the designated area, select the center point of the designated area, fix the position after the coordinate positioning plug tip (21) drops, and then adjust the position of the positioning seat (28). The position adjustment of the positioning seat (28) is carried out along the X-axis and the Y-axis, the X-axis is the horizontal movement, and the Y-axis is the vertical movement. By adjusting the positioning seat (28), the position of the long plug tip (15) is determined, and the positioning of the coordinate point is achieved.

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