Quick pre-assembling system and method for anti-collision guardrail

Abstract

The invention relates to the technical field of pre-assembly, in particular to a quick pre-assembly system and method for an anti-collision guardrail. The sliding mechanism is arranged on the rack in a sliding mode, the sliding mechanism can slide in the arrangement direction of the rack, and the arrangement direction of the sliding mechanism is perpendicular to the arrangement direction of the rack; the sliding seat is arranged on the sliding mechanism in a sliding mode and can slide in the arrangement direction of the sliding mechanism; the rotating seat is rotatably arranged on the sliding seat; the lifting seat can perform lifting adjustment relative to the rotating seat; the rotating table is arranged on the lifting seat, and a mounting surface for mounting the upright post is arranged on the rotating table; and the universal wheels are connected to the rotating seats in a supporting manner, and the bottoms of the universal wheels are flush with the bottom of the rack. The pre-assembly method is used for pre-assembly of the cross beam in a factory, and aims at achieving the purpose that problems can be found and solved in time before the cross beam and other components leave a factory, the probability of problems occurring in field installation is reduced, and the guardrail installation efficiency is improved.

Description

Technical Field

[0001] This invention relates to the technical field of pre-assembly, and specifically to a rapid pre-assembly system and method for crash barriers. Background Technology

[0002] Crash barriers serve to prevent vehicles and pedestrians from breaking through, passing under, or climbing over them. Bridge crash barriers can be categorized by their structural features into beam-column type (metal and concrete) barriers, reinforced concrete wall type barriers, and composite barriers. Beam-column type crash barriers typically consist of upright posts, post base plates, post caps, post brackets, crossbeams, crossbeam brackets, and crossbeam connecting sleeves. The posts are bolted to the post bases, the post caps are embedded in the top of the posts, and the brackets are welded to the posts. The brackets and crossbeams have elongated holes and are connected as a whole by bolts.

[0003] During the factory manufacturing stage, there will be assembly deviations and welding deformations in both the column and beam components. For example, the assembly position deviation of the column bracket in the column height direction and the bracket width deformation error, the assembly position deviation of the beam bracket in the beam length direction, the assembly position deviation of the column body in the column base plate length and width direction, and the beam side bending deformation, etc.

[0004] During the bridge installation phase, crash barriers are typically installed after the main structure is completed. This means that components such as posts, beams, and sleeves are transported to the site individually. During the installation of the crash barrier beams and posts, problems inevitably arise, including misalignment between post and beam brackets, difficulty in installing beam brackets due to narrow post bracket width, mismatch between beam curvature and post installation alignment, and misalignment between beams. In particular, when the crash barrier has a transverse curve, the alignment mismatch and misalignment at connections are especially severe. Extensive use of fire repair, cutting, and mechanical straightening for correction can result in residual stress, significantly impacting the structural safety, appearance, and installation efficiency of the crash barrier. Therefore, the current common practice is to assemble on-site. The parts are first shipped from the factory to the site for assembly. If problems are found, the problematic components are transported back to the production workshop for adjustment and modification before being transported back to the site for installation. While this approach solves the problem of residual stress caused by on-site correction, the back-and-forth transportation and adjustments extend the construction period and increase transportation costs. Therefore, it is necessary to provide a new solution. Summary of the Invention

[0005] The purpose of this invention is to overcome the shortcomings of the prior art and provide a rapid pre-assembly system and method for crash barriers, which solves the problems of extended construction period and increased transportation costs in the existing practice of transporting crash barriers to the construction site for pre-assembly and then transporting the problematic parts back to the workshop for modification after problems are found.

[0006] The technical solution to achieve the above objectives is: This invention provides a rapid pre-assembly system for crash barriers, used to simulate the installation state of on-site posts. The pre-assembly system includes: frame; A sliding mechanism is slidably mounted on the frame, the sliding mechanism being able to slide along the setting direction of the frame, the setting direction of the sliding mechanism being perpendicular to the setting direction of the frame; A sliding seat is slidably mounted on the sliding mechanism, and the sliding seat can slide along the setting direction of the sliding mechanism; A rotatable rotating seat mounted on the sliding seat; A lifting seat that can be adjusted in height relative to the rotating seat; A rotating platform is provided on the lifting seat, and the rotating platform is provided with a mounting surface for installing the column; A caster wheel is supported and connected to the rotating base, and the bottom of the caster wheel is flush with the bottom of the frame.

[0007] A further improvement of the rapid pre-assembly system for crash barriers of the present invention is that a limiting mechanism is provided on the sliding seat corresponding to the rotating seat, and the limiting mechanism can restrict the rotation of the rotating seat.

[0008] A further improvement of the rapid pre-assembly system for crash barriers of the present invention is that the rotation of the rotating seat can rotate the lifting seat together, thereby realizing the adjustment of the setting angle of the column installed on the mounting surface. The rotation of the rotary table allows for adjustment of the tilt angle of the column on the mounting surface.

[0009] A further improvement of the rapid pre-assembly system for crash barriers of the present invention is that a positioning clamp is provided at the mounting surface of the rotating platform, and the positioning clamp can clamp and fix the column set on the mounting surface.

[0010] A further improvement of the rapid pre-assembly system for crash barriers of the present invention is that an electromagnetic chuck is provided on the mounting surface of the rotating platform for adsorbing and fixing the column.

[0011] A further improvement of the rapid pre-assembly system for crash barriers of the present invention is that a connecting column is connected to the bottom of the rotating seat, and a fixed seat is connected to the bottom of the connecting column. The caster wheel is rotatable relative to the fixed base and is mounted on the fixed base.

[0012] A further improvement of the rapid pre-assembly system for crash barriers of the present invention is that the rotating seat can rotate around a first axis, and the first axis is arranged vertically; The rotating platform can rotate around a second axis, which is perpendicular to the first axis and tangent to the rotation trajectory of the edge of the lifting seat.

[0013] The present invention also provides an assembly method using a rapid pre-assembly system for crash barriers, comprising the following steps: Obtain the installation location and orientation of the guardrail posts at the construction site; Adjust the position of the guardrail posts on the corresponding rotating platform of the pre-assembly system according to the obtained installation position of the guardrail posts; The posture of the guardrail posts is adjusted according to the installation posture of the guardrail posts. When adjusting the posture of the posts, the setting angle of the posts can be adjusted by rotating the rotating seat, and the tilt angle of the posts can be adjusted by rotating the rotating table. Provide guardrail beams and install them onto the posts that have been adjusted in position and orientation for pre-assembly. Adjust the guardrail beams and their connectors according to the position and orientation of the posts until the guardrail beams can be pre-assembled on the posts.

[0014] A further improvement of the assembly method of the rapid pre-assembly system for crash barriers of the present invention is that, during pre-assembly, the system is segmented according to the length of the guardrail posts at the construction site. A corresponding number of sliding mechanisms are set on the frame according to the number of guardrail posts in the segment, so as to simulate the guardrail posts by using the posts set on the sliding mechanisms.

[0015] A further improvement of the assembly method of the rapid pre-assembly system for crash barriers of the present invention is that a bracket for installing the guardrail beam is provided on the column of the pre-assembly system, and the setting position of the bracket on the column corresponds to the setting position of the bracket on the guardrail column at the construction site.

[0016] The beneficial effects of the rapid pre-assembly system and assembly method for crash barriers of the present invention are as follows: The pre-assembly system of this invention is used to simulate the installation state of the on-site columns in the factory. Based on the simulated columns, the crossbeams are pre-assembled in the factory to promptly identify problems during the assembly of the crossbeams. The aim is to enable the identification and timely resolution of problems before components such as crossbeams leave the factory, thereby reducing the probability of problems during on-site installation and improving the efficiency of guardrail installation.

[0017] The pre-assembly system of the present invention installs a simulated column on a rotating platform. The column slides along the setting direction of the frame through a sliding mechanism, and the sliding seat slides along the sliding mechanism to adjust the setting position of the column. Then, the setting angle of the column is adjusted by rotating the rotating seat, and the tilt angle of the column is adjusted by rotating the rotating platform, thus achieving accurate simulation of the installation state (or posture) of the column on site.

[0018] The pre-assembly system of the present invention has casters mounted below the sliding seat and the rotating seat. The casters contact the ground or the bearing surface to improve the stability of the sliding seat and the rotating seat during adjustment. In addition, the casters also have a shock absorption function to adapt to uneven road surfaces. The casters also have a braking function, which, together with the limiting mechanism set on the sliding seat, can prevent movement after the column is positioned, ensuring that the column remains in a fixed position and ensuring the accuracy of pre-assembly. Attached Figure Description

[0019] Figure 1 This is a three-dimensional structural diagram of the rapid pre-assembly system for crash barriers of the present invention.

[0020] Figure 2 This is an enlarged schematic diagram of the end of the frame in the rapid pre-assembly system for crash barriers of the present invention.

[0021] Figure 3 This is a partially enlarged schematic diagram of the first slide rail and the first rack installed on the top of the crossbeam of the frame of the anti-collision guardrail rapid pre-assembly system of the present invention.

[0022] Figure 4 This is a three-dimensional structural diagram of the sliding mechanism, sliding seat, rotating seat, lifting seat, rotating platform, and universal wheel connection in the rapid pre-assembly system for crash barriers of the present invention.

[0023] Figure 5 This is a front view of the sliding mechanism, sliding seat, rotating seat, lifting seat, rotating platform, and universal wheel connection in the rapid pre-assembly system for crash barriers of the present invention.

[0024] Figure 6 for Figure 5 A magnified view of point A in the diagram.

[0025] Figure 7 This is a partially enlarged schematic diagram of the rotating platform of the rapid pre-assembly system for crash barriers of the present invention.

[0026] Figure 8 This is a three-dimensional structural diagram of the mounting platform and positioning fixture of the rotating table of the anti-collision guardrail rapid pre-assembly system of the present invention.

[0027] Figure 9 This is a three-dimensional structural diagram of the caster wheel of the anti-collision guardrail rapid pre-assembly system of the present invention.

[0028] Figure 10 This is a side view of the caster wheels of the rapid pre-assembly system for crash barriers of the present invention.

[0029] Figure 11 This is a structural diagram of the initial state of the anti-collision guardrail rapid pre-assembly system of the present invention.

[0030] Figure 12 This is a schematic diagram of the three-dimensional structure of the anti-collision guardrail rapid pre-assembly system after the on-site erection of the posts. Detailed Implementation

[0031] The present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0032] See Figure 1 This invention provides a rapid pre-assembly system and method for crash barriers, used to quickly simulate the installation state of the on-site posts, and then pre-assemble crossbeams on the simulated posts. This allows for the timely identification and correction of processing problems with the crossbeams, and the timely transportation of the corrected crossbeams to the site for actual installation. This reduces problems such as misalignment and improper installation during the crossbeam installation process, effectively improving the installation efficiency of the crash barriers. The rapid pre-assembly system and method for crash barriers of this invention will be described below with reference to the accompanying drawings.

[0033] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other.

[0034] See Figure 1 This image shows a three-dimensional structural diagram of the rapid pre-assembly system for crash barriers according to the present invention. (See attached image.) Figure 4 This image shows a three-dimensional structural diagram of the sliding mechanism, sliding seat, rotating seat, lifting seat, rotating platform, and caster wheel connection in the rapid pre-assembly system for crash barriers of the present invention. The following is a combined view... Figure 1 and Figure 4 The present invention describes the rapid pre-assembly system for crash barriers.

[0035] like Figure 1 and Figure 4As shown, the rapid pre-assembly system for crash barriers of the present invention is used to simulate the installation state of on-site posts. The pre-assembly system includes a frame 21, a sliding mechanism 22, a sliding seat 23, a rotating seat 24, a lifting seat 25, a rotating platform 26, and casters 27. The sliding mechanism 22 is slidably mounted on the frame 21 and can slide along the setting direction of the frame 21. The setting direction of the sliding mechanism 22 is perpendicular to the setting direction of the frame 21. The sliding seat... 23 is slidably mounted on sliding mechanism 22, and sliding seat 23 can slide along the setting direction of sliding mechanism 22; rotating seat 24 is rotatably mounted on sliding seat 23; lifting seat 25 can be adjusted in height relative to rotating seat 24; rotating platform 26 is mounted on lifting seat 25, and rotating platform 26 is provided with mounting surface 261 for mounting column 11; caster wheel 27 is supported and connected to rotating seat 24, and the bottom of caster wheel 27 is flush with the bottom of frame 21.

[0036] In use, the rapid pre-assembly system for crash barriers of the present invention involves supporting the frame 21 on the ground or other bearing surface (such as an assembly platform or a work surface in a processing workshop). The orientation of the frame 21 is defined as the X-direction. The sliding mechanism 22 can be adjusted along this X-direction. The orientation of the sliding mechanism 22 is perpendicular to the X-direction, and the sliding seat 23 can be adjusted along this Y-direction. By utilizing the sliding mechanism 22 and the sliding seat 23, the position adjustment in the XY direction can be achieved, thereby adjusting the position of the upright 11. The rotating seat 24 can rotate, thereby adjusting the angle of the upright 11 installed on the rotating platform 26. The lifting seat 25 can be adjusted relative to the rotating seat 24 (i.e., adjusted in the Z-direction perpendicular to the XY plane), thereby adjusting the position of the rotating platform 26. The height of the column 11 can be adjusted by rotating the rotating platform 26 relative to the lifting seat 25. This allows for adjustment of the tilt angle of the column 11. After the frame 21 is fixed in place, the posture of the column 11 installed on the mounting surface 261 of the rotating platform 26 can be adjusted according to the state of the column measured at the construction site, through the sliding mechanism 22, sliding seat 23, rotating seat 24, lifting seat 25, and rotating platform 26. This simulates the actual installed column at the construction site. After the posture of the column 11 is positioned, the crossbeam can be pre-assembled on the column 11. This allows for timely detection and correction of crossbeam processing problems, reducing the probability of problems occurring on-site when the crossbeam is transported to the site for installation and improving the installation efficiency of the guardrail.

[0037] The pre-assembly system of this invention can be set up in the factory where the crossbeams are processed. Before leaving the factory, the crossbeams undergo simulated pre-assembly using the system, allowing for the timely identification and correction of problems with the crossbeams and their mounting plates. This proactive approach improves on-site installation efficiency by identifying and resolving issues before the crossbeams leave the factory. In contrast, existing technology involves discovering problems with the crossbeams only during on-site installation, requiring them to be transported back to the factory for repairs. This process increases transportation costs and time, and negatively impacts installation efficiency.

[0038] The number of sliding mechanisms 22, sliding seats 23, rotating seats 24, lifting seats 25, rotating platforms 26, and casters 27 in the pre-assembly system of the present invention is matched with the number of columns to be simulated.

[0039] In one specific embodiment of the present invention, such as Figure 4 and Figure 5 As shown, a limiting mechanism is provided on the sliding seat 23 corresponding to the rotating seat 24, which can limit the rotation of the rotating seat 24.

[0040] When it is necessary to adjust the setting angle of the column 11, the limiting mechanism is released from the rotation restriction of the rotating seat 24. When the rotating seat 24 rotates to the required angle, the limiting mechanism is used to restrict the rotation of the rotating seat 24 to position the setting angle of the column 11.

[0041] Furthermore, the limiting mechanism includes a vertically arranged telescopic member 231 disposed on the sliding seat 23. The telescopic member 231 can be adjusted vertically relative to the sliding seat 23, and the telescopic end of the telescopic member 231 can cooperate with the rotating seat 24 to limit the rotation of the rotating seat 24. Preferably, the telescopic member 231 is one of an electric cylinder, a pneumatic cylinder, or a hydraulic cylinder.

[0042] In a preferred embodiment, an electromagnet 232 is provided at the telescopic end of the telescopic member 231. When the telescopic member 231 extends, the electromagnet 232 can attract the rotating seat 24 so that the rotating seat 24 can no longer rotate. When the telescopic member 231 retracts, it can take the electromagnet 232 away from the rotating seat 24, so that the rotating seat 24 can rotate.

[0043] Preferably, multiple telescopic components 231 and electromagnets 232 are provided. The telescopic components 231 and electromagnets 232 are preferably arranged circumferentially along the rotation of the rotating seat 24, so that the electromagnets 232 can be attracted and fixed to the rotating seat 24 at any angle when the rotating seat 24 is rotated.

[0044] In one specific embodiment of the present invention, the rotation of the rotating seat 24 can cause the lifting seat 25 to rotate together, thereby adjusting the setting angle of the column 11 installed on the mounting surface 261; the rotation of the rotating table 26 can adjust the tilt angle of the column 11 on the mounting surface 261.

[0045] Furthermore, the rotating seat 24 can rotate around a first axis, which is vertically oriented and parallel to the Z-direction; the rotating platform 26 can rotate around a second axis, which is perpendicular to the first axis and tangent to the rotation trajectory of the edge of the lifting seat 25. The lifting seat 25 rotates together with the rotating seat 24 around the first axis, and the edge of the lifting seat 25 rotates around the first axis in a circular trajectory, with the second axis tangent to this circle.

[0046] Furthermore, the rotating seat 24 is rotatably connected to the bottom of the sliding seat 23 via the slewing support 233. A drive motor 234 is also provided on the sliding seat 23. The drive motor 234 is driven to the slewing support 233 via a drive gear 235. The drive gear 235 meshes with the internal gear ring on the slewing support 233. The forward and reverse rotation of the drive motor 234 can drive the slewing support 233 to rotate in the forward or reverse direction via the drive gear 235. As a result, the slewing support 233 rotates together with the rotating seat 24 connected to it.

[0047] Furthermore, a lead screw drive motor 241 and a drive lead screw 242 connected to the lead screw drive motor 241 are provided on the rotating seat 24. The drive lead screw 242 is threadedly connected to the lifting seat 25. A guide rod 243 is provided on the rotating seat 24, passing through the lifting seat 25. The guide rod 243 restricts the lifting seat 25 from rotating with the drive lead screw 242, allowing the lifting seat 25 to move up and down along the drive lead screw 242 when the drive lead screw 242 rotates, thus adjusting the height of the lifting seat 25. To prevent the lifting seat 25 from disengaging from the drive lead screw 242 and the guide rod 243, a fixed seat 245 is provided at the bottom of the drive lead screw 242 and the guide rod 243. The fixed seat 245 is located below the lifting seat 25, and the bottom of the guide rod 243 is fixedly connected to the fixed seat 245. The bottom of the drive lead screw 242 is rotatably mounted on the fixed seat 245.

[0048] Furthermore, the lifting seat 25 includes a horizontal plate 251 and a vertical plate 252 connected to the horizontal plate 251. The horizontal plate 251 is provided with a threaded connector that is threadedly connected to the drive screw 242. The threaded connector can be a nut or an internal thread sleeve or other components. The horizontal plate 251 is provided with a through hole corresponding to the guide rod 243.

[0049] The rotary table 26 is connected to the vertical plate 252, and preferably the rotary table 26 is connected to the lower part of the vertical plate 252, in combination with... Figure 7 As shown, the side of the rotary table 26 is provided with a mounting plate 262, which is attached to the vertical plate 252 and then fixedly connected by bolts.

[0050] The rotary table 26 also includes a rotary drive 263 mounted on the mounting plate 262 and a mounting platform 264 connected to the rotary drive 263. The rotary drive 263 can drive the mounting platform 264 to rotate. The rotation axis of the mounting platform 264 is parallel to the length direction of the mounting plate 262. A mounting surface 261 is formed on the mounting platform 264. The rotary drive 263 is preferably a motor, which can drive the mounting platform 264 to rotate relative to the mounting plate 262 through gear transmission or belt transmission, etc.

[0051] Furthermore, combined with Figure 8 As shown, a positioning clamp 265 is provided at the mounting surface 261 of the rotary table 26, which can clamp and fix the column 11 on the mounting surface 261.

[0052] The positioning fixture 265 includes a pusher 2651 mounted on the mounting platform 264 and a clamping plate 2652 connected to the corresponding pusher 2651. The pusher 2651 is telescopically adjustable, allowing the clamping plate 2652 to be pushed towards the column 11 or pulled away from the column 11. After the column 11 is placed on the mounting surface 261, the corresponding pusher 2651 pushes the clamping plate 2652 towards the column 11, causing the clamping plates 2652 on both sides to clamp the column 11, thus positioning the column 11. Preferably, the positioning fixture 265 has two sets, so that clamping plates 2652 are provided on all four sides of the column 11. The pusher 2651 is preferably a synchronous electric cylinder, capable of moving the clamping plates 2652 synchronously to position the column 11 at the center of the mounting surface 261. Furthermore, a slide rail 2641 is provided on the mounting platform 264 corresponding to the clamping plate 2652. The clamping plate 2652 slides on the corresponding slide rail 2641, and the slide rail 2641 guides and limits the movement of the clamping plate 2652.

[0053] Furthermore, the mounting surface 261 of the rotary table 26 is provided with an electromagnetic chuck 266 for adsorbing and fixing the column 11. Preferably, after the column 11 is placed on the mounting surface 261, the four sides of the column 11 are first clamped by the synchronously moving clamping plates 2652 to position the column 11 at the center of the mounting surface 261, and then the electromagnetic chuck 266 is energized to generate magnetism to adsorb and fix the column 11.

[0054] In one specific embodiment of the present invention, such as Figure 4 and Figure 5 As shown, the bottom of the rotating seat 24 is supported by a connecting column 246, and the bottom of the connecting column 246 is connected to a fixed seat 245; the caster wheel 27 is mounted on the fixed seat 245 and can rotate relative to the fixed seat 245.

[0055] Furthermore, combined Figure 9 and Figure 10 As shown, the caster wheel 27 is rotatably mounted on the fixed base 245 via an external toothed slewing support 271. A first drive motor 272 is mounted on the caster wheel 27, and a first gear 273 is connected to the motor shaft of the first drive motor 272. The first gear 273 meshes with the external gear ring on the external toothed slewing support 271, thereby driving the external toothed slewing support 271 to rotate via the first gear 273. The rotation of the external toothed slewing support 271 causes the caster wheel 27 to rotate relative to the fixed base 245. Specifically, the first drive motor 272 and the drive motor 234 operate synchronously, so that when the drive motor 234 drives the rotating seat 24 to rotate, the first drive motor 272 synchronously drives the fixed base 245 to rotate as well, while the caster wheel 27 remains stationary.

[0056] The caster wheel 27 is an auxiliary mechanism, mainly used to assist the column 11 in moving stably.

[0057] Furthermore, the caster wheel 27 is equipped with a shock-absorbing spring 274, which is located between the axle and the wheel seat of the caster wheel 27 to allow the caster wheel 27 to adapt to uneven road surfaces. The caster wheel 27 includes a wheel support frame 276, a connecting rod 277 hinged to the wheel support frame 276, and a top frame 278 hinged to the other end of the connecting rod 277. The top frame 278 can rotate freely relative to the external toothed slewing support 271. The shock-absorbing spring 274 is sleeved on the connecting rod 277, with one end of the shock-absorbing spring 274 connected to the top frame 278 and the other end connected to the corresponding part of the connecting rod 277.

[0058] The caster wheel 27 is also equipped with a brake device 275, which is used to brake the caster wheel 27 after the column 11 is adjusted to the correct position and angle, so as to prevent the column 11 from moving after being positioned.

[0059] In one specific embodiment of the present invention, such as Figures 1 to 3 As shown, the frame 21 includes legs 211 and crossbeams 212 placed on the legs 211. The frame formed by the connection of the legs 211 and the crossbeams 212 is arranged opposite to each other, and the two ends of the sliding mechanism 22 slide on the corresponding crossbeams 212. The length of the frame 21 can be spliced ​​according to actual needs.

[0060] Furthermore, a first slide rail 213 and a first rack 214 are provided on the top surface of the crossbeam 212 corresponding to the sliding mechanism 22; both ends of the sliding mechanism 22 are provided with movable seats 221, and a first slide rail seat is provided on the movable seat 221 corresponding to the first slide rail 213. A first motor 222 is also provided on the movable seat 221, with the motor shaft of the first motor 222 facing downward. A first power gear is fixedly connected to the motor shaft. The first power gear meshes with the first rack 214 provided on the crossbeam 212, thereby driving the first power gear to rotate, so that the first power gear can move the movable seat 221 along the first rack 214.

[0061] Furthermore, the sliding mechanism 22 also includes a longitudinal beam 223 connected to two movable seats 221. A second slide rail 224 and a second rack 225 are provided on the longitudinal beam 223 corresponding to the sliding seat 23. A second slide rail seat is provided on the sliding seat 23 corresponding to the second slide rail 224. A second motor 237 is also provided on the sliding seat 23. The motor shaft of the second motor 237 is arranged downward. A second power gear is fixedly connected to the motor shaft. The second power gear meshes with the second rack 225 provided on the longitudinal beam 223. Thus, the second motor 237 drives the second power gear to rotate, so that the second power gear can move the sliding seat 23 along the second rack 225.

[0062] The following describes the usage process of the rapid pre-assembly system for crash barriers of the present invention.

[0063] In use, the rapid pre-assembly system for crash barriers is installed in a designated area of ​​the factory, such as a workshop or open space for assembly. The length of the guardrail at the construction site is divided into multiple segments, for example, N segments, each with M posts. The N segments are simulated sequentially. The pre-assembly system includes M sliding mechanisms 22, sliding seats 23, rotating seats 24, lifting seats 25, rotating platforms 26, and casters 27. Figure 11 As shown, M sliding mechanisms 22 are slid along the frame 21 to one end of the frame 21, with each lifting seat 25 at its lowest end. Then, the columns 11 are installed onto the mounting surface 261. Specifically, the columns 11 are positioned and clamped by the positioning clamp 265, and the columns 11 are clamped at the center of the mounting surface 261. Then, the columns 11 are attracted and fixed by the electromagnetic chuck 266, thus completing the positioning of the columns 11.

[0064] Next, the center point of the bottom surface of the first upright post 11 located at the end of the frame 21 is set as the origin of the global coordinate system. The forward and backward movement of the post along the frame 21 is set as the X-axis, the left and right movement along the sliding mechanism 22 is set as the Y-axis, and the up and down movement along the drive screw 242 is set as the Z-axis. Based on the established global coordinate system, the position information of the guardrail posts on site can be converted into coordinate positions in the global coordinate system, thereby obtaining the coordinate positions of all posts.

[0065] Based on the location of this section of guardrail post on site, and referring to the origin of the global coordinate system, the position parameters of the remaining posts (including coordinate position, height, angle, tilt, etc.) are generated, and the corresponding posts on the pre-assembly system are moved to the specified coordinates.

[0066] Based on the angle and inclination of the guardrail posts in this segment, for example, if this segment of the guardrail is an arc segment, a curve, or the bridge is uphill or downhill, the angles between the posts will be different. Because there is an arc, the posts will have an inclination. Set the axis of the drive screw 242 of the post on the pre-assembly system as the rotating axis a, and the axis of the rotating table 26 as the rotating axis b. Adjust the angle and inclination of the posts in this segment of the guardrail based on the angle and inclination measured at the construction site.

[0067] The column furthest from the origin of the global coordinate system is the first column. Driven by the sliding mechanism 22, the first column moves along the X-axis (the first slide rail 213 of the frame 21) to the designated position, thus completing the X-axis positioning; then it moves along the Y-axis (the second slide rail 224 of the sliding mechanism 22) to the designated position, thus completing the Y-axis positioning; then it moves along the direction of the drive screw 242 to the designated position, thus completing the Z-axis positioning; then the remaining columns also move to their corresponding positions in sequence. Based on the shape of the pre-assembled segmented guardrail, identify whether it is curved. If it is curved, there will be angle and tilt differences between the posts. After the XYZ coordinates of post 11 are set, if there is an angle difference, post 11 needs to be rotated by a specified angle along axis a to complete the angle orientation positioning; if there is a tilt difference, post 11 needs to be rotated by a specified angle along axis b to complete the tilt positioning.

[0068] like Figure 12 As shown, after all columns 11 are adjusted, the slewing support 233 and caster 27 are locked, and the first section of the crossbeam is installed in sequence so that the crossbeam support plate and the column support plate are connected and the bolts are installed.

[0069] When installing the second section of the upright beam, align the beam support plate with the upright support plate and align the end of the second section of the beam with the end of the first section of the beam.

[0070] If any misalignment is found during the installation of the crossbeam, the crossbeam and its support plate should be repaired promptly, or the deviation value should be recorded for repair after disassembly.

[0071] The present invention also provides an assembly method using a rapid pre-assembly system for crash barriers, which is described below.

[0072] The assembly method of the present invention includes the following steps: Obtain the installation position and orientation of the guardrail posts at the construction site; the installation position is the coordinate of the post in the global coordinate system, including the coordinate information of the XYZ axes, and the orientation includes the angle and tilt of the guardrail post. Adjust the position of the guardrail posts on the corresponding rotating platform of the pre-assembly system according to the obtained installation position of the guardrail posts; The posture of the guardrail posts is adjusted according to the installation posture of the guardrail posts. When adjusting the posture of the posts, the setting angle of the posts can be adjusted by rotating the corresponding rotating seat, and the tilt angle of the posts can be adjusted by rotating the corresponding rotating table. Provide guardrail beams and install them onto the posts that have been adjusted in position and orientation for pre-assembly. Adjust the guardrail beams and their connectors (such as beam brackets) according to the position and orientation of the posts until the guardrail beams can be pre-assembled on the posts.

[0073] In one specific embodiment of the present invention, during pre-assembly, the guardrail posts are divided into sections according to their installation length at the construction site. Based on the number of guardrail posts in each segment, a corresponding number of sliding mechanisms are set on the frame to simulate the guardrail posts using the posts set on the sliding mechanisms.

[0074] In one specific embodiment of the present invention, brackets for installing guardrail beams are provided on the posts of the pre-assembly system. The positions of the brackets on the posts correspond to the positions of the brackets on the guardrail posts at the construction site. That is, the posts of the pre-assembly system are used to realistically simulate the state of the posts at the construction site, so that the beams can be pre-assembled in the factory. This facilitates the early detection of beam problems, reduces the probability of installation problems on site, and improves the installation efficiency of the guardrail.

[0075] The present invention has been described in detail above with reference to the accompanying drawings and embodiments. Those skilled in the art can make various modifications to the present invention based on the above description. Therefore, certain details in the embodiments should not be construed as limiting the present invention, and the scope of protection of the present invention shall be defined by the appended claims.

Claims

1. A rapid pre-assembly system for crash barriers, used to simulate the installation state of on-site posts, characterized in that, The pre-assembly system includes: frame; A sliding mechanism is slidably mounted on the frame, the sliding mechanism being able to slide along the setting direction of the frame, the setting direction of the sliding mechanism being perpendicular to the setting direction of the frame; A sliding seat is slidably mounted on the sliding mechanism, and the sliding seat can slide along the setting direction of the sliding mechanism; A rotatable rotating seat mounted on the sliding seat; A lifting seat that can be adjusted in height relative to the rotating seat; A rotating platform is provided on the lifting base, and the rotating platform is provided with a mounting surface for installing the column; A caster wheel is supported and connected to the rotating base, and the bottom of the caster wheel is flush with the bottom of the frame.

2. The rapid pre-assembly system for crash barriers as described in claim 1, characterized in that, The sliding seat is provided with a limiting mechanism corresponding to the rotating seat, and the limiting mechanism can restrict the rotation of the rotating seat.

3. The rapid pre-assembly system for crash barriers as described in claim 1, characterized in that, The rotation of the rotating seat can cause the lifting seat to rotate together, thereby adjusting the setting angle of the column installed on the mounting surface; The rotation of the rotary table allows for adjustment of the tilt angle of the column on the mounting surface.

4. The rapid pre-assembly system for crash barriers as described in claim 1, characterized in that, The rotating platform is provided with a positioning clamp at its mounting surface, which can clamp and fix the column on the mounting surface.

5. The rapid pre-assembly system for crash barriers as described in claim 1, characterized in that, The rotating platform is equipped with an electromagnetic chuck for adsorbing and fixing the column.

6. The rapid pre-assembly system for crash barriers as described in claim 1, characterized in that, The bottom of the rotating seat is supported by a connecting column, and the bottom of the connecting column is connected to a fixed seat. The caster wheel is rotatable relative to the fixed base and is mounted on the fixed base.

7. The rapid pre-assembly system for crash barriers as described in claim 1, characterized in that, The rotating seat can rotate around a first axis, which is vertically oriented; The rotating platform can rotate around a second axis, which is perpendicular to the first axis and tangent to the rotation trajectory of the edge of the lifting seat.

8. An assembly method using the rapid pre-assembly system for crash barriers as described in claim 1, characterized in that, Includes the following steps: Obtain the installation location and orientation of the guardrail posts at the construction site; Adjust the position of the guardrail posts on the corresponding rotating platform of the pre-assembly system according to the obtained installation position of the guardrail posts; The posture of the guardrail posts is adjusted according to the installation posture of the guardrail posts. When adjusting the posture of the posts, the setting angle of the posts can be adjusted by rotating the rotating seat, and the tilt angle of the posts can be adjusted by rotating the rotating table. Provide guardrail beams and install them onto the posts that have been adjusted in position and orientation for pre-assembly. Adjust the guardrail beams and their connectors according to the position and orientation of the posts until the guardrail beams can be pre-assembled on the posts.

9. The assembly method of the rapid pre-assembly system for crash barriers as described in claim 8, characterized in that, During pre-assembly, the guardrail posts are divided into sections according to their installation length at the construction site; A corresponding number of sliding mechanisms are set on the frame according to the number of guardrail posts in the segment, so as to simulate the guardrail posts by using the posts set on the sliding mechanisms.

10. The assembly method of the rapid pre-assembly system for crash barriers as described in claim 8, characterized in that, The pre-assembled system has brackets for installing guardrail beams on its columns, and the positions of the brackets on the columns correspond to the positions of the brackets on the guardrail columns at the construction site.

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