Highway linear measurement laser calibration steering device and use method thereof

Abstract

The invention relates to a road linear measurement laser calibration steering device and a use method thereof. Comprising a calibration table, two sets of laser calibration carrying assemblies symmetrically carried on the calibration table, a plurality of sets of anti-interference pressing plates annularly and fixedly connected to the periphery of the calibration table, a supporting sleeve arranged on the outer side of the bottom of the calibration table in a sleeving mode, a control panel connected to the outer side of the calibration table in an electric control mode and a driving gear rotationally connected to the center of the calibration table. Each laser calibration carrying assembly comprises a steering table, a placement table coaxially arranged on the steering table, a laser marker inserted into the placement table, two sets of extending frame sleeves integrally formed on the steering table and clamping ring claws slidably arranged in the extending frame sleeves. And in combination with magnetic coupling module driving and high-precision angle identification, the inherent reverse clearance and meshing error of worm gear and worm or gear transmission are effectively eliminated, and the accuracy and stability of laser aiming and reading are ensured.

Description

Technical Field

[0001] This invention relates to the field of highway alignment measurement technology, and in particular to a laser calibration steering device for highway alignment measurement and its usage method. Background Technology

[0002] Highway alignment surveying is a core surveying task in road engineering. It is a process specifically designed to accurately determine, lay out, and monitor the geometric shape and position of highway routes in three-dimensional space. Laser-guided steering is a core technology in modern highway construction for achieving high-precision and automated alignment control. It specifically refers to using laser positioning technology as a spatial reference, combined with sensors and control systems, to guide or automatically control the travel direction and working device posture of construction machinery in real time, so that it strictly follows the designed horizontal and vertical alignment during construction.

[0003] In the design, construction, and acceptance of highway engineering projects, accurate alignment measurement is fundamental to ensuring road safety, comfort, and compliance. The core working principle of traditional laser-based alignment calibration steering devices for highways involves mounting a laser emitter on a mechanical steering platform. Through manual intervention or a simple motor drive, the horizontal and vertical deflection angles of the laser beam are controlled, projecting the highway centerline or edge line onto the construction site in accordance with the design drawings. The steering mechanism typically uses worm gears or simple gear transmissions, which suffer from backlash and gear meshing errors. During on-site operations, minor ground vibrations, wind disturbances, or accidental contact with the tripod can cause slight shifts or vibrations in the base, resulting in violent shaking of the laser spot. This makes accurate aiming and reading impossible, and the calibration process heavily relies on the operator's experience and visual judgment. The operator must repeatedly adjust the angle manually, read the scale, and record data. The entire process is cumbersome, time-consuming, and prone to subjective errors, making rapid and continuous automated measurement difficult. Furthermore, the steering mechanism cannot perceive its actual positional deviation caused by mechanical deformation or external interference in real time when executing commands, leading to a mismatch between control commands and execution results. Summary of the Invention

[0004] The technical problem to be solved by this invention is that traditional laser calibration steering devices for highway alignment measurement suffer from low measurement accuracy, poor efficiency, and insufficient stability due to mechanical transmission errors, susceptibility to external interference, high dependence on manual operation, and lack of real-time feedback.

[0005] The technical solution of this invention to solve the above-mentioned technical problems is as follows: A laser calibration steering device for highway alignment measurement and its usage method, comprising a calibration platform, two sets of laser calibration mounting components symmetrically mounted on the calibration platform, several sets of anti-interference pressure plates circumferentially fixed to the periphery of the calibration platform, a support sleeve sleeved on the outer side of the bottom of the calibration platform, a control panel electrically connected to the outer side of the calibration platform, a drive gear rotatably connected to the center of the calibration platform, and a rack meshing with the drive gear. The laser calibration mounting components include a steering platform, a mounting platform coaxially mounted on the steering platform, and a laser marker inserted into the mounting platform. Two sets of extended frame sleeves integrally formed on the steering column, clamping claws slidably set in the extended frame sleeves, and a protective frame, adapter plate and pressure plate coaxially and sequentially fixed from the steering column downwards. Two sets of laser calibration mounting components are used to move towards or away from each other along the calibration column to adjust the measurement width. The anti-interference pressure plate is used to provide anti-interference protection when the laser calibration mounting components turn sharply. The support sleeve is used to maintain overall stability and adapt to the external mounting structure. The control panel is used to display highway alignment measurement data and input control commands. The drive gear and rack cooperate to drive the movement of the two sets of laser calibration mounting components.

[0006] The beneficial effects of this invention are as follows: The symmetrical design of the dual-laser calibration mounting components, combined with magnetic coupling module drive and high-precision angle marking, effectively eliminates the inherent backlash and meshing errors of worm gear or gear transmissions. The introduction of an anti-interference pressure plate, multiple shock-absorbing structures (such as spring-rubber dampers, shock absorbers, and airbags), and gyroscope attitude sensing together constitute a passive and active shock-absorbing system, greatly suppressing base displacement and laser spot jitter caused by foundation micro-vibrations, wind disturbances, or accidental impacts, ensuring the accuracy and stability of laser aiming and reading.

[0007] Furthermore, symmetrical grooves for sliding operation of the laser calibration mounting components are provided along the calibration platform. A fixing ring is fitted around the calibration platform and fixed to the support sleeve. An angle mark in a circumferential array is provided on the fixing ring. Several group spacing marks are provided along both sides of the groove. A first drive motor is connected to the bottom of the drive gear. A magnetic coupling module is provided between the first drive motor and the drive gear.

[0008] Furthermore, a second adjustment cavity is provided in the center of the pressure plate. A rotating second steering rod and an adjustment box fitted on the second steering rod are inserted into the center of the second adjustment cavity. Adjustment arms are installed on both sides of the adjustment box. A sleeve and a fixing block fixed to the outside of the sleeve are provided on the adjustment arm away from the pressure plate. The fixing block is fixedly installed on one end of the rack. A telescopic sleeve connected to another set of laser calibration mounting components is installed on the other end of the rack.

[0009] Furthermore, a stacked air cushion plate is provided between the mounting platform and the turning platform. A central pad is integrated in the center of the mounting platform. Several sets of mounting slots for installing different measuring instruments are distributed along the mounting platform, as well as flexible pads for shock absorption and protection located between the two sets of mounting slots. Positioning holes are provided at all four corners of the mounting platform.

[0010] Furthermore, guide grooves are provided on both sides of the inside of the extension frame sleeve. A slider is provided in the extension frame sleeve that slides along the guide groove. A first spring post is passed through the center of the slider. A spring rubber damper is provided inside the first spring post. A disassembly ball sleeve corresponding to the first spring post is provided outside the extension frame sleeve. A support plate and a clamping claw are connected to the slider upward in sequence. Several sets of flexible posts are installed along the support plate and the clamping claw. The inside of the protective frame and the adapter plate forms a first adjustment cavity. An adjustment channel communicating with the extension frame sleeve is symmetrically opened along the first adjustment cavity. A push post is passed through the center of the adapter plate. Guide posts that pass through the adjustment channel and abut against the first spring post are symmetrically and obliquely provided on the push post. A fixing sleeve is sleeved on the outside of the push post. A first hydraulic cylinder is located at the bottom of the push post and is driven and controlled. The first hydraulic cylinder drives the push post to use the guide post and the first hydraulic cylinder to perform clamping or opening and closing operations on its two sets of clamping claws. A contact plate is provided at the top of the first adjustment cavity. A gyroscope is provided inside the contact plate.

[0011] Furthermore, one end of the second steering rod is provided with a rotating cap that is fixed to the pressure plate, and the other end of the second steering rod is connected to a second drive motor. The second drive motor drives the second steering rod to move the adjustment box to swing within the second adjustment cavity.

[0012] Furthermore, both sets of adjusting arms are provided with slots, and a rotating rod and a motor unit that drives the rotating rod are inserted through the center of the sleeve. The motor unit drives the rotating rod to swing the two sets of adjusting arms. The end of each set of adjusting arms away from the rotating rod is provided with a first steering rod that passes through the adjusting box. The adjusting box is covered with a rubber sleeve. An extension plate is fixed to the adjusting box away from the steering table. A guide rod connected to the extension plate is provided on the fixed block. The other end of the guide rod is provided with a second hydraulic cylinder that abuts against the fixed block. The second hydraulic cylinder drives the guide rod to swing the adjusting box slightly. A sliding plate and a sliding strip fixed to the bottom of the sliding plate are integrally formed at the bottom of the sleeve.

[0013] Furthermore, the anti-interference pressure plate is set in two stacked sets, and several sets of second spring columns are inserted between the two sets of anti-interference pressure plates. The second spring columns are equipped with spring rubber dampers inside. Several sets of bases are mounted around the outer perimeter of the calibration platform. Several sets of first arc frames and second arc frames that abut against the anti-interference pressure plate are staggered on the bases. Airbags are fitted on the first arc frames and second arc frames. Shock-absorbing grooves are symmetrically opened on the anti-interference pressure plate.

[0014] Furthermore, several sets of damping blocks are circumferentially fixed to the outer wall of the support sleeve, and a snap-fit ​​ring is coaxially provided below the support sleeve. An installation ring is sleeved around the snap-fit ​​ring, and several sets of gyroscopes are circumferentially installed at the bottom of the installation ring. Several sets of brackets are circumferentially fixed to the outer edge of the snap-fit ​​ring. An extension rod is inserted into the end of the bracket away from the snap-fit ​​ring, which abuts against the installation ring and the damping block respectively. A third spring column is provided inside the extension rod, and the third spring column has an internal spring rubber damper.

[0015] According to another aspect of the present invention, a laser-calibrated steering device for highway alignment measurement and a method of using the same include the following steps: S1. Securely install the device onto the tripod or special base at the construction site using the mounting ring at the bottom. Insert the laser marker into the mounting slot of the mounting platform and initially fix it through the positioning hole. Start the PLC system, and the first hydraulic cylinder works to drive the push column and guide column, causing the slider to move along the guide groove, thereby driving the clamping claw to close. The flexible column flexibly clamps the laser emitter to avoid damage to the equipment. Input the highway alignment design parameters (such as horizontal curve radius, vertical curve elevation, etc.) through the control panel, and the PLC control system starts to operate. The two sets of laser calibration mounting components move towards or away from each other along the calibration platform slide groove under the drive of the drive gear and rack. The reference spacing is determined by the spacing mark to form dual laser synchronous calibration. S2, Macro Steering: The control panel sends angle commands to the first drive motor. The first drive motor drives the drive gear to rotate via a magnetic coupling module, and the drive gear meshes with the rack to perform linear motion. The rack transmits the motion to the adjusting arm through a fixed block and a telescopic sleeve. The motor unit drives the rotating rod to lock the swing base point of the adjusting arm. The motion of the rack is ultimately converted into a large-amplitude swing of the adjusting box around the first steering rod as the axis. The swing of the adjusting box is transmitted to the pressure plate and protective frame through the second steering rod, ultimately driving the entire steering platform and laser marker to perform a large-angle coarse adjustment in the horizontal direction.

[0016] Micro-correction: After a large turn or when fine-tuning is required, the second hydraulic cylinder starts to work, pushing or pulling the guide rod. The guide rod drives the extension plate, causing the adjustment box to deflect at a small angle (small swing) around the second steering rod in the second adjustment cavity. This movement is also transmitted to the upper structure through the second steering rod, realizing high-precision fine-tuning of the laser beam projection angle. S3. The first hydraulic cylinder pushes the push column, which presses the first spring column through the oblique guide column, causing the slider to slide along the V-shaped guide groove of the extension frame, thereby driving the clamping claw to achieve constant force clamping of the laser marker. The gyroscope in the contact plate monitors the attitude change of the steering table in real time, and the data is fed back to the control system to dynamically correct the output of the drive motor. S4. Throughout the process, the gyroscope located inside the contact plate monitors the instantaneous angular velocity and angle changes of the turntable (i.e., the laser projection platform) in real time, while the gyroscope located at the bottom of the mounting ring monitors the level and stability of the entire device base in real time. Once a jitter or offset exceeding the threshold is detected (such as that caused by wind or touch), the sensor data is immediately fed back to the main controller. The controller will quickly calculate the compensation amount and instruct the corresponding drive motor (first drive motor, second drive motor, or motor group) to perform reverse fine adjustment, quickly correcting the projection direction of the laser beam, thereby maintaining the stability and accuracy of the spot position, forming an efficient closed-loop control.

[0017] The beneficial effects of adopting the above-mentioned further scheme are: through the coordinated electronic control drive of the first drive motor, the second drive motor, the motor group, the first hydraulic cylinder and the second hydraulic cylinder, the precise and rapid automatic control of the horizontal and vertical deflection angles of the laser beam is realized. The operator does not need to repeatedly adjust manually and judge by eye. The parameters can be set and automatic calibration can be performed through the control panel, which greatly reduces the labor intensity, eliminates subjective errors, and realizes rapid and continuous automated measurement. The laser calibration mounting assembly is flexibly adjustable via grooves and spacing markers to accommodate measurement needs for different road widths (centerline or edge lines). Multiple mounting slots and flexible pads on the mounting platform allow for safe and vibration-damped installation of different laser emitters (laser markers). The entire device is securely connected to an external tripod or base via sleeves, snap-fit ​​rings, and a bracket system, providing exceptional overall stability. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of a laser calibration steering device for highway alignment measurement and its usage method according to the present invention; Figure 2 This is a schematic diagram of the calibration platform of the present invention; Figure 3 This is a schematic diagram of the steering platform of the present invention; Figure 4 This is an exploded view of the laser calibration mounting component of the present invention; Figure 5 This is a schematic diagram of the laser calibration mounting component of the present invention from another angle during an explosion. Figure 6 This is a schematic diagram of the slide table of the present invention; Figure 7 This is a schematic diagram of the adjusting arm of the present invention; Figure 8 This is a schematic diagram of the support sleeve of the present invention.

[0019] The attached diagram lists the components represented by each number as follows: 1. Calibration platform; 2. Laser calibration mounting assembly; 3. Anti-interference pressure plate; 4. Control panel; 5. Support sleeve; 101. Slide groove; 102. Drive gear; 103. Spacing mark; 104. Fixing ring; 105. Angle mark; 106. First drive motor; 107. Magnetic coupling module; 201. Steering platform; 202. Protective frame; 203. Extension frame sleeve; 204. Guide groove; 205. Stacked air cushion plate 206. Mounting platform; 207. Mounting slot; 208. Positioning hole; 209. Flexible pad; 210. Center pad; 211. First spring post; 212. Disassembly ball sleeve; 213. Slide plate; 214. Support plate; 215. Clamping claw; 216. Flexible post; 217. Fixing sleeve; 218. Pushing post; 219. Guide post; 220. First hydraulic cylinder; 221. Adaptor plate; 222. First adjusting cavity 223. Contact plate; 224. Adjustment channel; 225. Pressure plate; 226. Second adjustment chamber; 227. Second drive motor; 228. Rotating cap; 229. Adjustment box; 230. Rubber sleeve; 231. Slide table; 232. Slide bar; 233. Adjustment arm; 234. First steering rod; 235. Slot; 236. Fixing block; 237. Guide rod; 238. Extension plate; 239. Second hydraulic... Cylinder; 240, rack; 241, telescopic sleeve; 242, laser marker; 243, second steering rod; 301, second spring column; 302, first arc frame; 303, second arc frame; 304, airbag; 305, shock absorber groove; 306, base; 501, shock absorber block; 502, third spring column; 503, extension rod; 504, bracket; 505, mounting ring; 506, gyroscope; 507, snap ring. Detailed Implementation

[0020] The principles and features of the present invention are described below with reference to the accompanying drawings. The examples given are only for explaining the present invention and are not intended to limit the scope of the present invention.

[0021] In the description of this application, it should be understood that the terms "upper," "lower," "front," "rear," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship 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 on this application. In the description of this application, "a plurality of" means two or more, unless otherwise precisely specified.

[0022] Example 1; as Figures 1-5As shown, calibration platform 1 has two sets of laser calibration mounting components 2 symmetrically arranged on it. The two sets of laser calibration mounting components 2 can move towards each other or away from each other along the slide groove 101 on the calibration platform 1 to realize the measurement of the road alignment of different widths. Several sets of anti-interference pressure plates 3 are fixed around the periphery of the calibration platform 1 to provide physical protection when the laser calibration mounting components 2 make large turns, so as to avoid structural interference or collision damage. The calibration platform 1 is fitted with a support sleeve 5 on the outer side of its bottom to enhance overall stability and adapt to the installation of a tripod or other base 306. The calibration platform 1 is equipped with an electrically connected control panel 4 on its outer side to display measurement data and input control commands. The calibration platform 1 is equipped with an active gear 102 driven by a first drive motor 106 through a magnetic coupling module 107, and a rack 240 meshing with the active gear 102 for transmission and adjustment of the spacing between the two sets of laser calibration mounting components 2. The laser calibration mounting component 2 includes a turntable 201. A mounting platform 206 is coaxially mounted on the turntable 201 for placing measuring instruments such as the laser marker 242. Two sets of extended frame sleeves 203 are integrally formed on the turntable 201. Clamping claws 215 are slidably mounted inside the frame sleeves via sliders for clamping and fixing the laser marker 242. A protective frame 202, an adapter plate 221, and a pressure plate 225 are coaxially fixed downwards on the turntable 201, forming a multi-stage adjustment and load-bearing structure. A stacked air cushion plate 205 is provided between the mounting platform 206 and the steering platform 201. The mounting platform 206 has multiple mounting slots 207 and flexible pads 209, which can be used to install different types of lasers and also serve as shock absorption protection. The slider inside the extension frame 203 achieves elastic sliding through the first spring column 211 and its internal spring rubber damper. The clamping claw 215 achieves constant force opening and closing by driving the push column 218 and the inclined guide column 219 through the first hydraulic cylinder 220, avoiding damage to precision instruments. The top of the first adjustment cavity 222 formed by the protective frame 202 and the adapter plate 221 is also equipped with a contact plate 223 with a built-in gyroscope 506 (recommended model: TDK InvenSense ICM-42605) for real-time monitoring of the steering platform 201's attitude. During operation, the device is securely installed to the field base 306 via the mounting ring 505 at the bottom. The laser marker 242 is inserted into the mounting slot 207 of the mounting platform 206 and initially fixed through the positioning hole 208. The PLC control system is activated, the first hydraulic cylinder 220 is activated, driving the push column 218 and guide column 219 to move the slider along the guide groove 204, which drives the clamping claw 215 to close and flexibly hold the laser marker 242 through the flexible column 216. The operator inputs the highway alignment parameters through the control panel 4. The PLC controls the first drive motor 106 to operate, which drives the drive gear 102 and rack 240 through the magnetic coupling module 107. This causes the two sets of laser calibration mounting components 2 to move along the slide 101 and be adjusted to the required spacing according to the spacing mark 103, achieving synchronous dual-laser calibration. Subsequently, the system can control the laser marker 242 to perform horizontal rotation. Its macroscopic rotation is achieved by the motor driving the adjusting arm 233, while the microscopic angle correction is completed by the second hydraulic cylinder 239 driving the adjusting box 229, forming a drive chain that balances efficiency and accuracy. Throughout the process, the gyroscope 506 inside the contact disk 223 monitors the rotational attitude in real time and achieves dynamic compensation through the control system to ensure the stability of the light spot.

[0023] Example 2: Please refer to Figure 1 - Figure 8 Based on Embodiment 1, a more complete shock absorption and stabilization mechanism is added. Inside the second adjustment cavity 226 opened in the center of the pressure plate 225, an adjustment box 229 that can swing slightly is connected through the second steering rod 243. Adjustment arms 233 that can rotate significantly are hinged on both sides of the adjustment box 229. The adjusting arm 233 is fixedly connected to the rack 240 via the fixing block 236. The other end of the rack 240 is connected to another set of laser calibration mounting components 2 via the telescopic sleeve 241 to achieve linkage. The adjusting box 229 is also provided with an extension plate 238, which is connected to the second hydraulic cylinder 239 via the guide rod 237. The second hydraulic cylinder 239 drives the adjusting box 229 to swing slightly, thereby achieving high-precision fine adjustment of the laser projection angle. The anti-interference pressure plate 3 adopts a two-layer superimposed design, with multiple second spring columns 301 inserted between the layers. Each of them is equipped with a spring rubber damper to effectively absorb external impacts. On the base 306 arranged circumferentially around the calibration platform 1, the first arc frame 302 and the second arc frame 303 are arranged alternately. The arc frame is covered with an airbag 304, which cooperates with the shock-absorbing groove 305 on the anti-interference pressure plate 3 to form a multi-level buffer. A damping block 501 is circumferentially fixed to the outer wall of the support sleeve 5. Below it, a mounting ring 505 is coaxially fitted via a snap-fit ​​ring 507. Several gyroscopes 506 (same model as above) are circumferentially mounted on the bottom of the mounting ring 505 to monitor the overall attitude of the base 306. The periphery of the snap-fit ​​ring 507, through a bracket 504 and an extension rod 503 with a built-in third spring post 502, abuts against the mounting ring 505 and the damping block 501 respectively, forming full-path damping from the base 306 to the load-bearing structure. In addition to the basic operating procedures of the embodiments, the enhanced structure of this embodiment further improves the anti-interference capability during operation. When the device is subjected to foundation vibration, wind force or accidental contact, the anti-interference pressure plate 3 and the arc frame airbag 304 absorb and buffer the energy first, reducing the transmission to the main structure; If the base 306 tilts or shakes slightly, the gyroscope 506 at the bottom of the mounting ring 505 detects the status change in real time and feeds the data back to the controller. The controller integrates the data from the gyroscope 506 on the contact plate 223 and coordinates the various drive motors and hydraulic cylinders to make compensation adjustments. For example, the angle is corrected in the horizontal direction by fine-tuning the adjustment box 229, or the laser is stabilized by adjusting the clamping force. The entire system forms a fast closed-loop control from perception, decision-making to execution, which greatly improves the measurement accuracy and reliability in complex field environments.

[0024] The above working principle can be summarized as follows: through a symmetrical dual-laser component design, magnetic coupling transmission, multi-stage hydraulic and motor coordinated drive, and shock absorption mechanisms and a gyroscope 506 sensing system distributed throughout key nodes, a high-precision, high-stability, anti-interference, and highly automated highway alignment laser calibration solution is achieved. It fundamentally solves the problems of traditional equipment's reliance on manual labor, limited accuracy, and poor environmental adaptability.

[0025] Based on Embodiment 1 and Embodiment 2, it is recommended that the laser marker 242 be a high-brightness, high-collimation visible laser, and that the contact part between its outer shell and the clamping claw 215 be made of soft silicone or polyurethane sheath. For structural components such as calibration platform 1, steering platform 201, and gear rack 240, which are the main load-bearing and transmission parts, it is recommended to use 7075 aerospace aluminum alloy or 304 stainless steel precision machined to ensure rigidity and durability. For the elastic materials in various shock-absorbing and damping elements, it is recommended to use nitrile rubber or polyurethane to balance environmental resistance and service life. Specifically, for the angle encoder: if more direct angle feedback is required, a miniature absolute rotary encoder, such as the Austria MicroSystems AS5048A (magnetic encoder), can be installed on the rotating shaft of the drive gear 102 or the second steering rod 243 to directly read the rotation angle and achieve more precise closed-loop position control. Structural components (calibration platform 1, steering platform 201, pressure plate 225, gears and racks 240): made of 7075 aviation aluminum alloy or 304 stainless steel. The former is lightweight and has high strength; the latter has good corrosion resistance and is suitable for harsh construction site environments. Shock-absorbing components (internal spring of spring column, flexible pad 209, airbag 304): nitrile rubber (NBR) or polyurethane (PU), with good wear resistance, oil resistance and high elasticity; Wear-resistant parts (slide bar 232, sleeve): made of polyoxymethylene (POM) or composite material with embedded copper powder, which has self-lubricating properties and low coefficient of friction.

[0026] Clamping elements (clamping claw 215, flexible column 216): The main body of the clamping claw 215 is made of aluminum alloy, and the inner side in contact with the laser can be inlaid with soft silicone or polyurethane sheath to prevent scratching the equipment and provide sufficient friction. Magnetic coupling module 107: This module is located between the first drive motor 106 and the drive gear 102. Its core is to use the magnetic force between permanent magnets for non-contact torque transmission. It completely isolates motor vibration and completely eliminates the backlash present in traditional couplings or gear meshing, which is the key to achieving high-precision transmission.

[0027] The functions of the adjusting box 229 and the adjusting arm 233 are as follows: The adjusting arm 233 and the slot 235 mechanism on it are mainly used to achieve large-amplitude fan-shaped swing (coarse adjustment), while the adjusting box 229, driven by the second hydraulic cylinder 239, can be deflected at a small angle in the second adjusting cavity 226 (fine adjustment). The combination of the two achieves a wide range and high precision angle control in the horizontal direction.

[0028] The anti-interference pressure plate 3 operates as follows: its function is not active driving, but rather as a physical limit and buffer protection zone. When the laser calibration mounting component 2 is about to collide during automatic operation due to a program error or unexpected reason, it will first contact the anti-interference pressure plate 3, absorbing energy by compressing the second spring column 301, thus preventing damage to the precision steering mechanism due to a hard impact. The above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A highway alignment laser calibration turning device, characterized by, The utility model provides a kind of highway line shape measuring device, including calibration platform (1), two groups of laser calibration carrying components (2) that are symmetrically carried on calibration platform (1), several groups of anti-interference pressing plate (3) that are fixedly connected in the periphery of calibration platform (1), the sleeve (5) that is set in the bottom outside of calibration platform (1), the control panel (4) that is electrically connected outside calibration platform (1), driving gear (102) that is rotatably connected in the center of calibration platform (1), rack (240) that is meshed with driving gear (102), laser marker (242) that is inserted in the setting platform (206) coaxially arranged on steering platform (201), two groups of extension frame sleeve (203) integrally formed on steering platform (201), clamping ring claw (215) that is slidably arranged in extension frame sleeve (203), and protection frame (202), adaptive disc (221) and pressure disc (225) are fixedly connected in turn from steering platform (201) downwards, two groups of laser calibration carrying components (2) are used to move to adjust the measured width along calibration platform (1) opposite or apart, control panel (4) is used to display highway line shape measuring data and input control instruction, driving gear (102) is used to drive two groups of laser calibration carrying components (2) to move with rack (240).

2. A highway alignment laser calibration turning device according to claim 1, wherein, Symmetrically set up along calibration sleeve platform slide groove (101) for laser calibration carrying component (2) sliding, fixed ring (104) is set in the periphery of calibration platform (1) and is fixed with sleeve (5), angle mark (105) is arranged on fixed ring (104) in annular array, a plurality of groups of distance mark (103) are sequentially arranged along the both sides of slide groove (101), first drive motor (106) is connected to the bottom of driving gear (102), and magnetic coupling module (107) is arranged between first drive motor (106) and driving gear (102).

3. The highway alignment laser calibration turning device of claim 1, wherein, Pressure disc (225) center is provided with second adjusting cavity (226), second adjusting cavity (226) is inserted into the second steering rod (243) that rotates and the adjusting box (229) that is sleeved on the second steering rod (243), adjusting arm (233) is installed on both sides of adjusting box (229), sleeve and fixed block (236) that is fixedly connected with the outside of sleeve are arranged at the position away from pressure disc (225) of adjusting arm (233), fixed block (236) is fixedly installed with one end of rack (240), and rack (240) other end is provided with telescopic sleeve (241) that is connected to another group of laser calibration carrying components (2).

4. The highway alignment laser calibration turning device of claim 1, wherein, Stacked air cushion pad (205) is arranged between setting platform (206) and steering platform (201), center pad (210) is integrated in the center of setting platform (206), a plurality of groups of installation grooves (207) for installing different measuring instruments are sequentially arranged along setting platform (206), and flexible pad (209) is arranged between two groups of installation grooves (207) for shock absorption protection, positioning hole (208) is arranged at the corner of four around installation platform.

5. The highway alignment laser calibration turning device of claim 1, wherein, The extension frame sleeve (203) is provided with guide grooves (204) on both sides, a sliding block is arranged in the extension frame sleeve (203) and slides along the guide grooves (204), a first spring column (211) is arranged in the center of the sliding block, a spring rubber damper is arranged in the first spring column (211), a dismounting sleeve (212) corresponding to the first spring column (211) is arranged outside the extension frame sleeve (203), the sliding block is sequentially connected with a supporting plate (214) and a clamping ring claw (215) upwards, a plurality of groups of flexible columns (216) are arranged along the supporting plate (214) and the clamping ring claw (215), a first adjusting cavity (222) is formed in the protection frame (202) and the adapter disc (221), adjusting channels (224) communicating with the extension frame sleeve (203) are symmetrically arranged on the first adjusting cavity (222), a pushing column (218) is arranged in the center of the adapter disc (221), guide columns (219) are symmetrically and obliquely arranged on the pushing column (218) and penetrate into the adjusting channels (224) to abut against the first spring column (211), a fixed sleeve (217) is sleeved outside the pushing column (218), a first hydraulic cylinder (220) is arranged at the bottom of the pushing column (218) and is driven and controlled, the first hydraulic cylinder (220) drives the pushing column (218) to make the two groups of clamping ring claws (215) clamp or open and close through the guide columns (219) and the first hydraulic cylinder (220), and a butt plate (223) is arranged at the top of the first adjusting cavity (222), and a gyroscope (506) is arranged in the butt plate (223).

6. A highway alignment laser calibration turning device as claimed in claim 3, wherein, The second steering rod (243) is provided with a rotating sleeve cap (228) fixedly connected with the pressure bearing disc (225) at one end, and the second driving motor (227) is connected with the other end of the second steering rod (243), the second driving motor (227) drives the second steering rod (243) to drive the adjusting box (229) to swing in the second adjusting cavity (226).

7. A highway alignment laser calibration turning device as claimed in claim 3, wherein, The two groups of adjusting arms (233) are provided with clamping grooves (235) distributed thereon, a rotating rod and a motor group driving the rotating rod are arranged in the center of the sleeve, the motor group drives the rotating rod to drive the two groups of adjusting arms (233) to swing, the two groups of adjusting arms (233) are provided with first steering rods (234) penetrating into the adjusting box (229) at the ends away from the rotating rod, the adjusting box (229) is covered with a rubber sleeve (230), the adjusting box (229) is fixedly connected with an extension plate (238) away from the steering table (201), the fixed block (236) is provided with a guide rod (237) connected with the extension plate (238), the other end of the guide rod (237) is provided with a second hydraulic cylinder (239) abutting against the fixed block (236), and the second hydraulic cylinder (239) drives the guide rod (237) to drive the adjusting box (229) to swing slightly, and the sleeve is integrally provided with a sliding plate (213) and a sliding strip (232) fixedly connected to the bottom of the sliding plate (213).

8. A highway alignment laser calibration turning device according to claim 1 wherein, The anti-interference pressing plate (3) is arranged in two groups of superposition, a plurality of groups of second spring columns (301) are sequentially inserted between the two groups of anti-interference pressing plates (3), the second spring column (301) is internally provided with a spring rubber damper, a plurality of groups of bases (306) are circularly carried along the periphery of the calibration table (1), a plurality of groups of first arc frames (302) and second arc frames (303) abutting against the anti-interference pressing plate (3) are alternately arranged on the base (306), the first arc frame (302) and the second arc frame (303) are provided with the air bag (304), and the anti-interference pressing plate (3) is symmetrically provided with the damping groove (305).

9. The highway alignment laser calibration turning device of claim 1, wherein, The outer wall of the sleeve (5) is circularly fixedly connected with a plurality of groups of damping blocks (501), the clamping ring (507) is coaxially arranged below the sleeve (5), the mounting ring (505) is provided on the outer periphery of the clamping ring (507), a plurality of groups of gyroscopes (506) are circularly mounted on the bottom of the mounting ring (505), a plurality of groups of supports (504) are circularly fixedly connected on the outer periphery of the clamping ring (507), the extension rods (503) abutting against the mounting ring (505) and the damping blocks (501) are respectively inserted into the ends of the supports (504) away from the clamping ring (507), the third spring column (502) is arranged in the extension rod (503), and the third spring column (502) is internally provided with a spring rubber damper.

10. A highway alignment laser calibration turning device and method of use thereof, employing a highway alignment laser calibration turning device as claimed in claims 1-9, characterized by, The method comprises the following steps: S1, the device is stably installed on the tripod or special base (306) in the construction site through the mounting ring (505) at the bottom, insert the laser marker (242) into the mounting groove (207) of the installation table (206), and preliminarily fix it through the positioning hole (208), start the plc system, the first hydraulic cylinder (220) works, drives the pushing column (218) and the guide column (219), so that the sliding block moves along the guide groove (204), thereby driving the clamping ring jaw (215) to close, and the flexible column (216) is flexibly clamped, the laser emitter is prevented from being damaged, the highway linear design parameters (such as horizontal curve radius, vertical curve elevation, etc.) are input through the operation panel (4), the plc control system starts to work, the two groups of laser calibration assembly (2) move towards or away from each other along the calibration table (1) sliding groove (101) under the transmission of the driving gear (102) and the rack (240), the reference distance is determined through the distance mark (103), and double laser synchronous calibration is formed; S2, macroscopic steering: the control panel (4) sends angle instructions to the first drive motor (106). The first drive motor (106) drives the main gear (102) to rotate through the magnetic coupling module (107), and the main gear (102) meshes with the rack (240) to move linearly. The rack (240) transmits motion to the adjusting arm (233) through the fixed block (236) and the telescopic sleeve (241), and the motor group drives the rotating rod to lock the swing base point of the adjusting arm (233). The movement of the rack (240) is finally converted into a large amplitude swing of the adjusting box (229) with the first steering rod (234) as the axis. The swing of the adjusting box (229) is transmitted to the pressure plate (225) and the protection frame (202) through the second steering rod (243), and finally drives the entire steering table (201) and the laser marker (242) to make a large angle coarse adjustment in the horizontal direction.

11. Microscopic correction: after a large steering or when fine adjustment is needed, the second hydraulic cylinder (239) starts to work, pushing or pulling the guide rod (237), which drives the extension plate (238) to make the adjusting box (229) deflect slightly (small amplitude swing) around the second steering rod (243) in the second adjusting cavity (226). This movement is also transmitted to the upper structure through the second steering rod (243) to achieve high-precision fine adjustment of the laser beam projection angle; S3, the first hydraulic cylinder (220) pushes the pushing column (218), which compresses the first spring column (211) through the inclined guide column (219), so that the sliding block slides along the V-shaped guide groove (204) of the extension frame sleeve (203), drives the clamping ring jaw (215) to realize constant force clamping of the laser marker (242), and the gyroscope (506) in the abutting disc (223) monitors the attitude change of the steering table (201) in real time. Data feedback to the control system dynamically corrects the drive motor output; S4, During the entire process, the gyroscope (506) located inside the abutting disc (223) monitors the instantaneous angular velocity and angle change of the steering table (201) (i.e. the laser projection platform), and the gyroscope (506) located at the bottom of the mounting ring (505) monitors the horizontal and stable state of the entire device base (306). Once the shaking or deviation beyond the threshold value (such as caused by wind or touching) is detected, the sensor data is immediately fed back to the main controller, and the controller quickly calculates the compensation amount and instructs the corresponding first drive motor (106), second drive motor (227) or motor group to make reverse fine adjustment, quickly correct the projection direction of the laser beam, thereby maintaining the stability and accuracy of the light spot position, forming a high-efficiency closed loop control.

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