An intelligent track panel assembling machine based on a monolithic cushion plate and a construction method

Abstract

The application discloses a kind of intelligent track panel assembling machine and construction method based on monolithic cushion plate, including travelling crane track, by support column and steel rail is formed, fixed in track laying base, track panel is laid in travelling crane track;Vehicle, mobile is set on steel rail, and unloading system is arranged in vehicle, and mechanical arm is arranged below vehicle;Monolithic cushion plate is arranged in vehicle, and is installed on track panel by the unloading system of vehicle, and the position and fixation of monolithic cushion plate are completed by mechanical arm;Control system includes position sensor for controlling the position of vehicle on vehicle, position sensor for accurately controlling track panel installation action on mechanical arm and position sensor for accurately controlling unloading operation in unloading system, the operation of track panel intelligent assembly can be realized, monolithic cushion plate can be prefabricated and assembled in factory, and the degree of assembly is high, which can greatly save manpower and material resources.

Description

Technical Field

[0001] This invention relates to the field of building construction technology, and in particular to an intelligent rail panel assembly machine and construction method based on an integral base plate. Background Technology

[0002] The typical track panel installation process includes: scattering sleepers, laying elastic pads and steel pads on site, bolting the steel pads, placing rail underplates, placing rails, installing gauge blocks, placing T-bolts, elastic clips, and flat washers, and tightening the bolts with a screwdriver. This entire process requires significant labor and time, and the accuracy and quality of the installation cannot be guaranteed. Summary of the Invention

[0003] The purpose of this invention is to address the shortcomings of existing technologies by providing an intelligent rail panel assembly machine based on an integral base plate, comprising:

[0004] The train track consists of support columns and steel rails, and is fixed to the track laying base. Sleepers are laid inside the train track.

[0005] The vehicle body is mounted on the rails and has a material unloading system inside. A robotic arm is located under the vehicle body.

[0006] The integral pad is set inside the car body and installed on the sleeper through the car body's unloading system. The position and fixation of the integral pad are completed by a robotic arm.

[0007] The control system includes position sensors mounted on the vehicle body for controlling the vehicle body's position, position sensors mounted on the robotic arm for precise control of the track panel installation action, and position sensors mounted within the unloading system for precise control of the unloading operation.

[0008] Preferably, the integral pad includes an elastic pad, an iron pad, a rail under-pad, an insulating gauge block, a spring clip, bolts, and a bolt fixing plate. The elastic pad consists of an elastic flat plate and pre-drilled bolt holes. The iron pad is positioned above the elastic pad and connected to it by bolts. The rail under-pad is positioned above the iron pad and is used to directly support the rail. The insulating gauge block is positioned at both ends of the rail under-pad. The spring clip is W-shaped and its end is fixed to the iron pad, allowing it to swing up and down. The bolt fixing plate, along with the bolts, is fixed to the spring clip and can swing up and down with it.

[0009] Preferably, the iron pad is composed of an iron plate, a first bolt hole, a second bolt hole, a circular clamp, and a vertical stop block. The first bolt hole is aligned with the bolt hole of the elastic pad and is fastened by bolts, with a reserved distance for connection and fixation to the sleeper when the integral pad is installed. The second bolt hole is a reserved hole for fixing the elastic clip when it is installed. The circular clamp is used to fix the end of the elastic clip, ensuring that the elastic clip can swing up and down with the end as the fixed point. The vertical stop blocks on both sides separate the middle area to form a rail bearing groove. At the same time, the front end of the vertical stop block is provided with two cylindrical rail slots, which are surrounded by an outer rectangular slot. The outermost part of the cylindrical slot is provided with a detachable semi-circular thin plate to restrict the insulating gauge block within the cylindrical rail slot. The rail pad is inserted from under the outer rectangular slot of the iron pad and placed in the rail bearing groove.

[0010] Preferably, the insulating gauge block consists of an upper plate, a vertical plate, and a stop block at the intersection of the two plates. The vertical plate has a gap in the middle, with a rectangular insert plate for assembly with the outer rectangular slot of the iron pad. Below the rectangular insert plate, there is a spherical clip that is installed in the cylindrical track slot of the iron pad and can move up and down in the track slot.

[0011] Preferably, the number of robotic arms is eight. Each robotic arm consists of a base, a first rotating shaft, a first swing arm, a second swing arm, a telescopic arm, a second rotating shaft, and an electric wrench. The first rotating shaft controls the direction of the robotic arm, the first and second swing arms control the position of the robotic arm, the telescopic arm performs a push-pull motion to control the extension and retraction of the front end of the robotic arm, the second rotating shaft controls the rotation of the electric wrench, and a position sensor is installed on the electric wrench.

[0012] Preferably, the feeding system includes a feeding basket, a first slide rail, a second slide rail, and an end slider. The feeding basket is mounted on the first slide rail and can move up and down along the first slide rail. The end slider is mounted on the second slide rail and can move back and forth along the second slide rail. A position sensor is installed at the bottom of the feeding basket.

[0013] Preferably, the vehicle body is equipped with a power system that can continuously provide the power required for the assembly machine to operate.

[0014] A construction method includes the following steps:

[0015] S1. Factory-prefabricated integral base plate;

[0016] S2. Assemble the track panels at the track panel assembly base.

[0017] Preferably, step S1 further includes the following steps:

[0018] S11. Install the iron pad: Place the elastic pad on a horizontal surface, and lay the iron pad on top of the elastic pad, aligning the holes in the iron pad with the pre-drilled bolt holes in the elastic pad.

[0019] S12. Bolt connection: After placing the iron pad, install the bolts in the first bolt hole of the iron pad, and ensure that all the threaded part of the bolt is coated with oil. When installing the bolt, half of the bolt needs to be screwed into the first bolt hole.

[0020] S13. Install the spring clip: Use round clamps to fix the spring clip to the appropriate position on the iron pad;

[0021] S14. Install the bolt fixing plate: Assemble the bolt fixing plate in the middle position of the spring strip, and then put the bolt in the middle of the bolt fixing plate;

[0022] S15. Install the insulating gauge block: Insert the spherical clip of the insulating gauge block into the cylindrical track slot of the iron pad, then install the detachable semi-circular thin plate, and place the insulating gauge block at the top, then open the spring bar to press down the insulating gauge block.

[0023] S16. Install rail pads: Insert the rail pads from under the rectangular slots on the outside of the iron pads to complete the installation of the integrated pads in the pre-plant area.

[0024] Preferably, step S2 further includes the following steps:

[0025] S21, Loose sleepers: Use forklifts to transport sleepers to the track panel assembly base, and then loosen sleepers according to standard intervals;

[0026] S22. Unloading: Place the assembled integral pad in the unloading frame. Control the integral pad to move directly above the sleeper through the position sensors of the traveling system and the car body. Drive the unloading frame to move down along the first slide rail until the position sensor of the unloading frame detects that it has descended onto the sleeper. At this time, the end sliders on both sides move outward along the second slide rail in sequence to place the integral pad on the sleeper. After placement, the unloading frame moves up to the height of one integral pad and returns the end sliders to their original position to support the remaining integral pad. Then slide the unloading frame up to retract it.

[0027] S23. Installing the pad: Through the cooperation of the first rotating shaft, the first swing arm, the second swing arm, and the telescopic arm of the robotic arm, the electric wrench is pressed against the integral pad in the front-back direction. The position sensor on the electric wrench measures the offset of the integral pad. If it exceeds the error range, the robotic arm is driven to perform coarse adjustment of the integral pad in the front-back direction. Similarly, coarse adjustment of the integral pad in the left-right direction is performed. After the coarse adjustment of the integral pad is completed, the robotic arm is controlled to reach the position directly above the bolt, and the electric wrench is driven to rotate and tighten the bolt, thus fastening the integral pad to the sleeper.

[0028] S24. Placing the rails: After the car body has installed all the pads for the length of one rail, it moves outside the sleeper and waits. The crane is then manually operated to place the rails, so that the rails fall into the rail bearing grooves.

[0029] S25. Assembling the rail panel: After the rails are installed, the vehicle body moves to the sleeper position. The electric wrench of the robotic arm is moved under the spring clip and lifted upwards. Then, the electric wrench is moved to press against the insulated gauge block and moved forward until the insulated gauge block is vertical. The electric wrench is then moved back to directly above the insulated gauge block and pushed downwards, so that the rectangular insert of the insulated gauge block is inserted into the outer rectangular slot of the iron pad and locked between the vertical stop block of the rail and the iron pad, completing the installation of the insulated gauge block. Next, the electric wrench is moved above the spring clip and pushed downwards until it is pressed against the insulated gauge block. Finally, the electric wrench is moved above the bolt fixing plate, the bolt is pressed into the bolt hole, and the electric wrench is driven to rotate and tighten the bolt, completing the installation of the rail panel.

[0030] Compared with existing technologies, the advantages of this invention are as follows: This invention enables intelligent assembly of track panels; the integral base plate can be prefabricated and assembled in the factory, resulting in a high degree of assembly and significant savings in manpower and resources. The on-site construction process is short, simple to operate, and highly mechanized, increasing construction quality and efficiency. Attached Figure Description

[0031] The accompanying drawings are provided to further illustrate the invention and form part of the specification. They are used in conjunction with embodiments of the invention to explain the invention and do not constitute a limitation thereof. In the drawings:

[0032] Figure 1 This is a construction schematic diagram of the intelligent rail panel assembly machine based on an integral pad as described in this invention;

[0033] Figure 2 This is a schematic diagram of the integral pad structure of the present invention;

[0034] Figure 3 This is a schematic diagram of the iron pad structure of the present invention;

[0035] Figure 4 for Figure 3 Enlarged view of the structure of section A in the middle;

[0036] Figure 5 This is a schematic diagram of the insulated gauge block structure;

[0037] Figure 6 This is a schematic diagram of the intelligent rail panel assembly vehicle structure.

[0038] Figure 7 A schematic diagram of the robotic arm structure of an intelligent rail panel assembly vehicle;

[0039] Figure 8 A schematic diagram of the unloading system for the intelligent rail panel assembly vehicle;

[0040] Figure 9 This is a structural schematic diagram of the intelligent rail panel assembly vehicle unloading system from another angle. Detailed Implementation

[0041] The technical solution of the present invention will be described in detail below with reference to the accompanying drawings, but the scope of protection of the present invention is not limited to the embodiments described.

[0042] Please refer to Figures 1 to 9 The present invention discloses an intelligent rail panel assembly machine based on an integral pad, comprising:

[0043] The integrated pad 1 and the intelligent rail panel assembly machine 2 are included. The integrated pad 1 comprises an elastic pad 11, an iron pad 12, a rail under-pad 13, an insulated gauge block 14, a spring clip 15, bolts 16, and a bolt fixing plate 17. The elastic pad 11 consists of an elastic flat plate and pre-drilled bolt holes. The elastic pad is located at the bottom of the integrated pad, and the pre-drilled bolt holes should be aligned with the bolt holes of the sleepers. The iron pad 12 consists of an iron flat plate 121, a first bolt hole 122, a second bolt hole 123, a circular clamp 124, and a vertical stop block 125. The first bolt hole 122 on the outer side is aligned with the bolt hole of the elastic pad 11, and they are fastened together by bolts 16 with a distance reserved for connection and fixation to the sleepers during pad installation. The second bolt hole 123 is a pre-drilled hole for fixing the spring clip 15 during installation. The circular clamp 124 is used to fix the end of the spring clip 15, ensuring that the spring clip 15 can swing up and down with its end as the fixed point. The elastic bar 15 is W-shaped, with its end fixed in the circular clamp 124 of the iron pad plate 12, allowing it to swing up and down. The bolt fixing plate 17, together with the bolts 16, is fixed to the elastic bar 15, allowing it to swing up and down with the elastic bar. The vertical stop blocks 125 on both sides separate the middle area to form the rail bearing groove 126. At the same time, the front end of the vertical stop block 125 is provided with two cylindrical rail slots 1251, which are surrounded by the outer rectangular slots 1252. The outermost part of the cylindrical slots is provided with a detachable semi-circular thin plate 1253, which can restrict the insulating gauge block 14 within the cylindrical rail slots 1251. The rail pad plate 13 is inserted from under the outer rectangular slots 1252 of the iron pad plate 12 and placed in the rail bearing groove 126 for direct rail bearing. The insulating gauge block 14 is composed of an upper plate 141, a vertical plate 142, and a stop block 143 at the intersection of the two plates. A gap is cut in the middle of the vertical flat plate 142 to provide a rectangular insert plate 144 for assembly with the outer rectangular slot 1252 of the iron base plate 12. Below the rectangular insert plate 144, there is a spherical clip 145 that is installed in the cylindrical track slot 1251 of the iron base plate and can move up and down in the track slot 1251.

[0044] The intelligent rail panel assembly machine 2 includes a traveling system, a power system, and a control system. The traveling system includes a track 21 and a car body 22. The track 21 consists of support columns 211 and steel rails 212, and is fixed to the track laying base. The steel rails 212 are slightly higher and wider than the rail panels, facilitating the intelligent rail panel assembly machine to install the rail panels below. Eight robotic arms 23 are installed under the car body, and a material unloading system 24 is installed inside the car body.

[0045] The robotic arm 23 consists of a base 231, a first rotating shaft 232, a first swing arm 233, a second swing arm 234, a telescopic arm 235, a second rotating shaft 236, and an electric wrench 237. The first rotating shaft 232 controls the rotation of the robotic arm. The first swing arm 233 and the second swing arm 234 control the position of the robotic arm. The telescopic arm 235 controls the extension and retraction of the front end of the robotic arm, enabling pushing and pulling movements. The second rotating shaft 236 controls the rotation of the electric wrench 237. The unloading system 24 includes a unloading basket 241, a first slide rail 242, a second slide rail 243, and an end slider 244. The unloading basket 241 is mounted on the first slide rail 242 and can move up and down along it. The end slider 244 is mounted on the second slide rail 243 and can move back and forth along it.

[0046] The intelligent rail panel assembly machine 2 control system includes position sensors located on the car body 22, position sensors on the electric wrench 237 at the front end of the robotic arm 23, and position sensors at the bottom of the unloading basket 241. The position sensors on the car body 22 control the car body's position, ensuring it is in the appropriate location for the installation of each rail sleeper. The position sensors on the electric wrench 237 ensure precise control of each rail panel installation action. The position sensors at the bottom of the unloading basket 241 ensure precise control of the unloading operation.

[0047] The power system is located inside the vehicle body 22 and can continuously provide the power required for the assembly machine to operate.

[0048] The construction method of this invention is as follows:

[0049] S1, Factory-prefabricated integral base plate; wherein S1 further includes the following steps:

[0050] S11. Install the iron pad: Place the elastic pad 11 on a horizontal surface, and lay the iron pad 12 on top of the elastic pad 11. The holes of the iron pad 12 should be aligned with the pre-drilled bolt holes of the elastic pad 11.

[0051] S12, Bolt Connection: After placing the iron pad 12, install the bolts in the first bolt hole 122 of the iron pad, and ensure that all the threaded parts of the bolt 16 are coated with oil. When installing the bolt 16, only half of the bolt 16 needs to be screwed into the first bolt hole 122 to ensure that the elastic pad 11 and the iron pad 12 are firmly connected.

[0052] S13. Install the spring clip: Use the round clamp 124 to fix the spring clip 15 to the appropriate position on the iron pad.

[0053] S14. Install the bolt fixing plate: Assemble the bolt fixing plate 17 in the middle position of the spring strip, and then put the bolt 16 into the middle of the bolt fixing plate.

[0054] S15. Install the insulating gauge block: Insert the spherical clip 145 of the insulating gauge block 14 into the cylindrical track slot 1251 of the iron pad plate 12, then install the detachable semi-circular thin plate 1253, and place the insulating gauge block 14 at the top, then open the spring bar 15 to press down the insulating gauge block 14.

[0055] S16. Install rail pads: Finally, insert the rail pad 13 from under the rectangular slot 1252 on the outer side of the iron pad 12 to complete the installation of the integrated pad 1 in the pre-positioning plant area.

[0056] S2. Assemble the track panels at the track panel assembly base. Step S2 further includes the following steps:

[0057] S21. Loose sleepers: Use forklifts to transport sleepers to the track panel assembly base, and then loosen sleepers according to standard intervals.

[0058] S22. Unloading: The assembled integral pad 1 is manually placed in the unloading basket 241 of the intelligent rail panel assembly machine 2 beforehand. The intelligent rail panel assembly machine 2 moves to directly above the sleeper under the control of the traveling system and the position sensor of the car body 22, driving the unloading basket 241 to move downward along the first slide rail 242 until the position sensor of the unloading basket 241 detects that it has descended onto the sleeper. At this time, the end sliders 244 on both sides move outward sequentially along the second slide rail 243, placing the integral pad 1 on the sleeper. After placement, the unloading basket 241 moves upward by the height of one integral pad 1, and the end sliders 244 return to their original position to support the remaining integral pad 1, and then slides upward to retract the unloading basket 241.

[0059] S23. Installing the base plate: Through the cooperation of the first rotating shaft 232, the first swing arm 233, the second swing arm 234, and the telescopic arm 235 of the robotic arm 23 of the intelligent rail panel assembly machine 2, the electric wrench 237 of the robotic arm 23 is pressed against the integral base plate 1 in the front-back direction. The position sensor of the electric wrench 237 measures the offset of the integral base plate. If it exceeds the error range, the robotic arm 23 is driven to perform coarse adjustment of the integral base plate 1 in the front-back direction. Similarly, coarse adjustment of the integral base plate 1 in the left-right direction is performed. After the coarse adjustment of the integral base plate 1 is completed, the robotic arm 23 is controlled to reach the position directly above the bolt 16, and the electric wrench 237 is driven to rotate and tighten the bolt 16, thus firmly connecting the integral base plate 1 to the sleeper.

[0060] S24. Laying the rails: After the intelligent rail panel assembly machine 2 has installed all the pads for one rail length, it moves to a standby position outside the sleeper. The crane is manually operated to lay the rails, allowing them to fall into the rail bearing groove 126.

[0061] S25. Assembling the Rail Panel: After the rails are installed, the intelligent rail panel assembly machine 2 moves to the sleeper position. The electric wrench 237 of the robotic arm 23 is moved under the spring clip 15 and lifted upwards. The electric wrench 237 is then moved to press against the insulating gauge block 14 and moved forward until the insulating gauge block 14 is vertical. The electric wrench 237 is then moved back to directly above the insulating gauge block 14 and pushed downwards, causing the rectangular insert 144 of the insulating gauge block 14 to insert into the outer rectangular slot 1252 of the iron pad 12 and lock between the rail and the vertical stop block 125 of the iron pad 12, completing the installation of the insulating gauge block. Next, the electric wrench 237 is moved above the spring clip 15 and pushed downwards until it presses against the insulating gauge block. Finally, move the electric wrench 237 to the bolt 16 fixed on the bolt fixing plate 17, press the bolt into the bolt hole, and then drive the electric wrench 237 to rotate and tighten the bolt 16, thus completing the installation of the rail panel.

[0062] As described above, although the invention has been shown and described with reference to specific preferred embodiments, it should not be construed as limiting the invention itself. Various changes in form and detail may be made without departing from the spirit and scope of the invention as defined in the appended claims.

Claims

1. A monolithic mat based intelligent track panel assembly machine, The utility model relates to a track laying device, which is characterized in that it comprises: a track composed of support columns and steel rails, fixed to a track laying base, and having sleepers laid therein; a vehicle body movably arranged on the steel rails, the vehicle body being provided with a material feeding system, and a mechanical arm arranged below the vehicle body; a monolithic base plate arranged in the vehicle body and installed on the sleepers by the material feeding system of the vehicle body, the position and fixation of the monolithic base plate being completed by the mechanical arm; a control system comprising a position sensor arranged on the vehicle body for controlling the position of the vehicle body, a position sensor arranged on the mechanical arm for accurately controlling the installation action of the sleepers, and a position sensor arranged in the material feeding system for accurately controlling the material feeding operation. The monolithic base plate comprises an elastic base plate, an iron base plate, a rail base plate, an insulating gauge block, a spring strip, and a bolt fixing plate, wherein the elastic base plate is composed of an elastic flat plate and a reserved bolt hole, the iron base plate is arranged above the elastic base plate and connected to the elastic base plate by a bolt, the rail base plate is arranged above the iron base plate and used for directly supporting the rails, the insulating gauge block is arranged at both ends of the rail base plate, the spring strip is in a W shape, the end of the spring strip is fixed to the iron base plate and can swing up and down, and the bolt fixing plate is fixed to the spring strip together with the bolt and can swing up and down with the spring strip. The iron base plate is composed of an iron flat plate, a first bolt hole, a second bolt hole, a circular clamp, and a vertical block, the first bolt hole is aligned with the bolt hole of the elastic base plate, the iron base plate is connected to the elastic base plate by a bolt, a distance is reserved for the connection and fixation of the monolithic base plate to the sleepers during the installation of the monolithic base plate, the second bolt hole is a reserved hole position for fixing the spring strip during the installation of the spring strip, the circular clamp is used for fixing the end of the spring strip to ensure that the spring strip can swing up and down with the end as the fixed point, the vertical blocks on both sides separate the middle area to form a rail supporting groove, the front ends of the vertical blocks are provided with two cylindrical rail clamping grooves surrounded by outer rectangular clamping grooves, the outermost side of the cylindrical rail clamping grooves is provided with a detachable semicircular thin plate for limiting the insulating gauge block in the cylindrical rail clamping groove, and the rail base plate is inserted from below the outer rectangular clamping groove of the iron base plate and placed at the rail supporting groove.

2. The monolithic mat-based intelligent track panel erector of claim 1, wherein, The insulating gauge block is composed of an upper flat plate, a vertical flat plate, and a block at the intersection of the two flat plates, the vertical flat plate has a gap in the middle, a rectangular insertion plate is left for assembling with the outer rectangular clamping groove of the iron base plate, a spherical clamping body is arranged below the rectangular insertion plate and inserted into the cylindrical rail clamping groove of the iron base plate, and the spherical clamping body can move up and down in the cylindrical rail clamping groove.

3. The monolithic mat-based intelligent track panel erector of claim 2, wherein, The number of the mechanical arms is eight, each mechanical arm is composed of a base, a first rotating shaft, a first swing arm, a second swing arm, an extension arm, a second rotating shaft, and an electric wrench, the first rotating shaft controls the turning direction of the mechanical arm, the first swing arm and the second swing arm control the position of the mechanical arm, the extension arm controls the extension and retraction of the front end of the mechanical arm by push-pull movement, the second rotating shaft controls the rotation of the electric wrench, and the position sensor is arranged on the electric wrench.

4. The monolithic mat-based intelligent track panel erector of claim 3, wherein, The material feeding system comprises a material feeding basket, a first sliding rail, a second sliding rail, and a terminal sliding block, the material feeding basket is assembled on the first sliding rail and can move up and down along the first sliding rail, the terminal sliding block is assembled on the second sliding rail and can move forward and backward along the second sliding rail, and the position sensor is arranged at the bottom of the material feeding basket.

5. A monolithic mat based intelligent track panel erector according to claim 4, characterized in that, The vehicle body is internally provided with a power supply system, which can continuously provide the power required for the operation of the assembling machine.

6. A construction method comprising the assembly machine according to any one of claims 1 to 5, characterized in that It comprises the following steps: S1, factory prefabricated integral pad; S2, track row assembly base assembly track row.

7. A method of construction according to claim 6, wherein, The step S1 further comprises the following steps: S11, install the iron pad: place the elastic pad on the horizontal ground, lay the iron pad on the upper layer of the elastic pad, and align the iron pad hole with the reserved bolt hole of the elastic pad; S12, bolt connection: after placing the iron pad, install the first bolt hole of the iron pad, and ensure that the bolt thread part is fully oiled, and when installing the bolt, half of the bolt is screwed into the first bolt hole; S13, install the elastic strip: fix the elastic strip to the iron pad at the appropriate position with a circular clamp; S14, install the bolt fixing plate: assemble the bolt fixing plate in the middle of the elastic strip, and then put the bolt into the middle of the bolt fixing plate; S15, install the insulating gauge block: embed the spherical clamp body of the insulating gauge block into the cylindrical track clamp slot of the iron pad, then install the detachable semicircular thin plate, and place the insulating gauge block at the uppermost position, and then open the elastic strip to press the insulating gauge block; S16, install the track underpad: insert the track underpad from the lower side of the rectangular clamp slot of the iron pad, and complete the installation of the integral pad in the front factory area.

8. A method of construction according to claim 6, wherein, The step S2 further comprises the following steps: S21, spread the pillow: use a forklift to transport the sleeper to the track row assembly base, and then spread the pillow according to the standard interval; S22, unloading: place the assembled integral pad in the unloading frame, move the integral pad to the top of the sleeper through the position sensor control of the walking system and the vehicle body, drive the unloading frame to move downward along the first slide rail until the position sensor of the unloading frame monitors the descent to the sleeper, at this time, the end slides on both sides move outward along the second slide rail in turn, place the integral pad on the sleeper, after the placement is completed, the unloading basket moves up by one height of the integral pad, and the end slides are returned to the position to hold the remaining integral pad, and then the unloading basket is slid upward to be folded; S23, install the pad: through the cooperation of the first rotating shaft, the first swing arm, the second swing arm and the telescopic arm of the mechanical arm, the electric wrench is pressed against the front and rear directions of the integral pad, the position sensor on the electric wrench measures the deviation of the integral pad, if the error exceeds the range, the mechanical arm is driven to coarsely adjust the front and rear directions of the integral pad, and the left and right directions of the integral pad are adjusted in the same way, after the coarse adjustment of the position of the integral pad is completed, the mechanical arm is controlled to reach the position above the bolt, the electric wrench is driven to rotate and tighten the bolt, and the integral pad is tightly connected with the sleeper; S24, place the steel rail: after the vehicle body installs all the pads of one length of steel rail, it moves outside the sleeper to standby, and a crane is manually operated to place the steel rail, so that the steel rail falls into the rail groove; S25, assemble the rail row: after the rail is placed, the vehicle body moves to the sleeper position, the electric wrench of the mechanical arm is controlled to the bottom of the elastic strip, the elastic strip is lifted by moving upward, the electric wrench is moved to the insulating gauge block, and the insulating gauge block is moved to the vertical direction, then the electric wrench is moved to the top of the insulating gauge block and is pushed downward, the rectangular plug of the insulating gauge block is inserted into the rectangular clamping groove outside the iron pad, and is clamped between the vertical blocking block of the steel rail and the iron pad, the installation of the insulating gauge block is completed, then the electric wrench is moved to the top of the elastic strip, the elastic strip is pushed downward until it is pressed on the insulating gauge block, finally the electric wrench is moved to the top of the bolt fixing plate, the bolt is pressed into the bolt hole, and the electric wrench is driven to rotate and tighten the bolt, and the rail row is installed.

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