A precise rail alignment device and method thereof

Abstract

A precise rail alignment device and its corresponding alignment method. The precise rail alignment device includes a static end, a moving end, and a guide rod connecting the static end and the moving end. The static end is used to keep the position of the rail fixed, and the moving end is used to adjust the lateral, longitudinal, vertical positions and the angle of the rail body. The precise rail alignment method includes: the static end clamping block clamps the rail and keeps it stationary at the central position; the lateral adjustment device and the lifting device act to adjust the lateral and vertical positions of the rail and keep the pre-clamping of the moving end clamping block on the rail; the rail body torsion adjustment device acts to adjust the torsion angle of the rail body; the lateral adjustment device acts to push the moving end clamping block to clamp the rail and maintain a predetermined clamping force; the movable end of the rail pulling device drives the moving end rail to act and adjust the longitudinal position of the clamped rail at the moving end. The above device and method can achieve the alignment adjustment work before rail welding and solve the problem of unsatisfactory rail alignment effect in actual welding production.

Description

Technical Field

[0001] The present invention relates to a railway mechanical device and its working method, in particular to a rail alignment device and its alignment method, belonging to the technical field of rail alignment. Background Art

[0002] At the present stage, rail welding (especially mobile rail welding) does not have a completely automatic rail centering function. In order to ensure the appearance quality of rail welding, when clamping the rail, the operator can only check the centering situation of the rail by touching it by hand. If it is not centered, the clamp must be loosened and the rail must be repeatedly clamped after adding adjustment pads until it is centered. In this way, due to many adjustment factors, the operation is cumbersome, the labor intensity is high, the welding auxiliary process is long, which greatly affects the welding efficiency, and the centering accuracy is greatly affected by the operator's experience, and it is difficult to guarantee the rail welding quality.

[0003] The invention patent with the publication number of CN 101624805 A discloses a rail butt welder that clamps and aligns according to the working edge of the rail. In theory, it can be completely automatically centered, but due to different reasons such as the contour, rail wear and clamping rail template, the rail alignment effect is very unsatisfactory in actual welding production, resulting in the situation that the straightness of the rail joint exceeds the standard or there is serious offset.

[0004] The invention patent with the publication number of CN 102493295 A discloses a rail pulling and aligning device fixed on a vehicle frame, including a transverse sliding mechanism fixed on the vehicle frame, vertical sliding mechanisms connected to both sides of the transverse sliding mechanism, and longitudinal sliding mechanisms connected to the lower ends of each vertical sliding mechanism. It is characterized in that a rail clamping mechanism is arranged in the middle of the longitudinal sliding mechanism, and front and rear rail lifting mechanisms are correspondingly arranged in front of and behind the longitudinal sliding mechanism. The invention has high working efficiency, flexible and convenient operation, and reliable performance, and can solve the problem of rail pulling and aligning during rail welding, but it is still not precise enough. Summary of the Invention

[0005] The purpose of the present invention is to provide an alignment device with simple operation, which can operate without manual cooperation and has high precision, so as to overcome the problem of unsatisfactory rail alignment effect in existing welding production.

[0006] In the present invention, the direction parallel to the extension of the rail is set as the longitudinal direction, and the direction parallel to the sleeper is set as the transverse direction.

[0007] The first aspect of the present invention provides a precise rail alignment device, including a static end, a moving end and a guide rod connecting the static end and the moving end. The static end is used to keep the position of the rail fixed, and the moving end is used to realize the adjustment of the transverse, longitudinal, vertical positions and the rail body angle of the rail.

[0008] The static end includes a rail pulling device, a lateral adjustment device, a rail clamping block and a box body. The rail pulling device and the lateral adjustment device are both fixed on the box body. The rail clamping block is fixed at the end of the piston rod of the lateral adjustment device, and the piston rod of the rail pulling device supports the rail clamping block.

[0009] In a preferred embodiment, the rail precise alignment device includes a static end and a moving end. The static end and the moving end are connected to a guide rod 7. A rail pulling device is also installed between the static end and the moving end, and the rail pulling device is arranged parallel to the guide rod 7. The static end is preferably a static end box body, and the moving end is preferably a moving end box body.

[0010] Preferably, the moving end includes a lateral adjustment device, a rotatable rail clamping block, a rail body angle adjustment device, and a vertical adjustment device. The rotatable rail clamping block is connected to the vertical adjustment device and the lateral adjustment device through relevant connection designs. After the lateral adjustment device is aligned and applies force, the lateral position of the rail is adjusted. When the vertical adjustment device operates, the vertical position of the rail is adjusted. The rail body angle adjustment device is connected between the rotatable rail clamping block and the lateral adjustment device.

[0011] Preferably, a second piston rod is also installed at the moving end. When the rail pulling device fixed at the static end operates, the moving end of the rail is driven through the second piston rod.

[0012] The guide rod is fixed at the static end. During operation, the entire rail precise alignment device is connected to an external mechanism through a suspension device fixed on the guide rod, and then the alignment operations of the static end and the moving end are carried out in sequence.

[0013] The moving end of the lateral adjustment device at the static end is connected to a connecting block. The connecting block includes an oblong hole through which the moving end of the rail pulling device passes. The moving end of the rail pulling device and the connecting block are in a cross shape, and when the moving end of the lateral adjustment device at the static end drives the connecting block to move, the oblong hole does not affect the relative movement between the moving end of the rail pulling device and the connecting block. The swing rod is a T-shaped structure.

[0014] The rail clamping block at the moving end is connected to the connecting block through a swing rod and a cover plate. The cover plate is fixed on the rail clamping block at the moving end through a threaded connection, and the swing rod is fixed on the connecting block through a threaded connection. A rectangular hole is provided on the cover plate, and the width of the rectangular hole is the same as the diameter of the swing rod, which can prevent the T-shaped swing rod from disengaging from the rail clamping block at the moving end.

[0015] When the moving end of the lateral adjustment device at the moving end operates, the swing rod pushes or pulls the rail clamping block at the moving end to move, and the swing rod can move relatively vertically between the cover plate and the rail clamping block at the moving end along the rectangular hole on the cover plate. There can be a relative rotation within a certain angular range between the swing rod and the rail clamping block at the moving end to facilitate the adjustment of the rail body torsion angle.

[0016] The lifting device is connected to the moving-end rail clamping block through the lifting lug and the pull rod. The lifting lug is connected to the lifting device through a pin shaft. The pull rod and the moving-end rail clamping block are connected through a rotating shaft. An oblong hole is provided on the lifting lug as a guiding groove.

[0017] When the moving end of the lateral adjustment device at the moving end moves, it drives the moving-end rail clamping block and the pull rod to move along the oblong hole on the lifting lug. When the moving end of the lifting device moves, it drives the pull rod and the moving-end rail clamping block to move vertically through the lifting lug.

[0018] A rectangular groove is provided in the middle of the moving-end rail clamping block. The rail pushing block and the moving-end rail clamping block form a surface contact in the rectangular groove. The rail pushing block can move horizontally along the rectangular groove driven by the piston rod of the rail body torsion adjustment oil cylinder.

[0019] The second aspect of the present invention provides a method for precisely aligning rails:

[0020] Step a): The static-end rail clamping block clamps the rail and remains stationary at the centered position;

[0021] Step b): The lateral adjustment device and the lifting device act to adjust the lateral and vertical positions of the rail, and maintain the pre-clamping of the moving-end rail clamping block to the rail;

[0022] Step c): The rail body torsion adjustment device acts to adjust the torsion angle of the rail body;

[0023] Step d): The lateral adjustment device acts to push the moving-end rail clamping block to clamp the rail and maintain a predetermined clamping force;

[0024] Step e): The rail pulling device acts. The moving end of the rail pulling device drives the moving-end rail to move, and adjusts the longitudinal position of the rail clamped at the moving end.

[0025] Execute in sequence according to the above steps.

[0026] Preferably, the method for precisely aligning rails in the second aspect of the present invention uses the device for precisely aligning rails in the first aspect of the present invention.

[0027] The third aspect of the present invention provides a method for precisely aligning rails, including

[0028] Step S1. Clamp the static end of the rail.

[0029] Step S2. Adjust the lateral position of the static end of the rail.

[0030] Step S3. Pre-clamp the moving end of the rail.

[0031] Step S4. Adjust the vertical position of the moving-end rail.

[0032] Step S5. Adjust the torsion angle of the moving-end rail.

[0033] Step S6. Clamp the moving end of the rail.

[0034] Step S7. Adjust the lateral position of the moving end of the rail to align the moving-end rail with the static-end rail.

[0035] Step S8. Adjust the longitudinal position of the rail.

[0036] Perform in sequence according to the above steps.

[0037] Preferably, in step S3, the lateral adjustment cylinders 3 at the moving end of the rail act towards each other, driving the swing rods 13 at the ends of the connecting blocks 11 to extend, so that the moving-end rail clamping blocks 15 extend towards the rail until the moving-end rail clamping blocks 15 on both sides of the moving-end rail contact the rail to be clamped and pre-clamp the rail.

[0038] Preferably, the rail precise alignment method described in the third aspect of the present invention uses the rail precise alignment device described in the first aspect of the present invention.

[0039] Preferably, after step S3 and before clamping the rail, the rail body torsion adjustment cylinders 5 act towards each other, and at the same time, the second piston rod 18 drives the rail pushing block 16 to expand and contract through the ear seat 17 until the rail pushing block 16 contacts and clamps the rail. Then, the rail body torsion adjustment cylinders 5 act in the same direction to adjust the torsion angle of the rail body. At the same time, the swing rod 13 and the cover plate 14 rotate relative to the moving-end rail clamping block 15 to ensure that the moving-end rail clamping block 15 is in close contact with the clamped rail.

[0040] Preferably, the specific operation method of step S6 is: adjust the torsion angle of the rail body of the moving-end rail to be clamped to be the same as that of the static-end rail to be clamped. After that, the lateral adjustment cylinders 3 in the moving-end box body 6 act towards each other, so that the piston rod 12 of the lateral adjustment cylinder 3 drives the connecting block 11, the swing rod 13, and the cover plate 14 to move, and prompts the moving-end rail clamping block 15 to extend until the rail is clamped and a predetermined clamping force is reached.

[0041] Preferably, after the moving-end rail is clamped, the lateral adjustment cylinders 3 and the rail body torsion adjustment cylinders 5 in the moving-end box body 6 act in the same direction to adjust the lateral position of the moving-end rail. At the same time, the pull rod 21 will move horizontally synchronously along the guide groove at the lower part of the lifting lug 19. BRIEF DESCRIPTION OF THE DRAWINGS

[0042] Figure 1 Is the assembly axonometric drawing of the embodiment of the present invention;

[0043] Figure 2 Is the assembly top view of the embodiment of the present invention;

[0044] Figure 3 Is the assembly axonometric drawing of the static-end adjustment mechanism of the embodiment of the present invention;

[0045] Figure 4Isometric view of the moving end adjustment mechanism according to an embodiment of the present invention;

[0046] Figure 5 Partial view of the moving end vertical adjustment mechanism according to an embodiment of the present invention;

[0047] Figure 6 Partial sectional view of the moving end vertical adjustment mechanism according to an embodiment of the present invention;

[0048] Explanation of reference numerals:

[0049] 1 Stationary end box body 2 Rail pulling cylinder 3 Lateral adjustment cylinder 4 Rail pulling cylinder piston rod

[0050] 5 Rail body torsion adjustment cylinder 6 Moving end box body 7 Guide rod 8 Stationary end rail clamping block

[0051] 9 Ear seat 10 Single ear seat 11 Connecting block 12 Piston rod 13 Swing rod

[0052] 14 Cover plate 15 Moving end rail clamping block 16 Rail pushing block 17 Second ear seat 18 Second piston rod

[0053] 19 Lifting lug 20 Lifting cylinder 21 Pull rod 22 Friction block. Detailed implementation manners

[0054] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings.

[0055] Embodiment 1.1: A precise rail alignment device includes a stationary end box body 1 and a moving end box body 6. Guide rods 7 are connected to the upper parts of the first side wall and the third side wall of the stationary end box body 1 and the moving end box body 6, and the guide rods 7 penetrate through the two side walls of the stationary end box body 1 and the moving end box body 6. A rail pulling cylinder 2 is also installed between the first side wall and the third side wall of the stationary end box body 1 and the moving end box body 6. The rail pulling cylinder 2 is arranged parallel to the guide rod 7 and is located below the guide rod 7. The guide rod 7 mainly plays a guiding role and bears a certain vertical force.

[0056] The second side wall and the fourth side wall of the stationary end box body 1 are connected to a lateral adjustment cylinder 3, and the movable end of the lateral adjustment cylinder 3 is located inside the box body of the stationary end box body 1.

[0057] The end of the piston rod 12 of the lateral adjustment cylinder 3 is connected to a single ear seat 10 through a connecting block 11. The single ear seat 10 is matched and connected with the ear seat 9, and the other end of the ear seat 9 is connected to the stationary end rail clamping block 8.

[0058] Each stationary end rail clamping block 8 is connected to two sets of lateral adjustment cylinders 3, connecting blocks 11, single ear seats 10 and ear seats 9. The ear seat 9 and the single ear seat 10 are fixed together by two bolts to prevent the stationary end rail clamping block 8 from rotating along the rail direction.

[0059] Two static end clamping rail blocks 8 are arranged inside the static end box body 1 for clamping the rail.

[0060] The first side wall and the third side wall of the static end box body 1 both include grooves to accommodate the rail and enable the lateral adjustment oil cylinders 3, the connection blocks 11 and the static end clamping rail blocks 8 installed inside the static end box body 1 to clamp on both sides of the rail.

[0061] The second side wall and the fourth side wall of the moving end box body 6 are both connected to two lateral adjustment oil cylinders 3. A rail body torsion adjustment oil cylinder 5 is installed on the second side wall and the fourth side wall between the two lateral adjustment oil cylinders 3. The rail body torsion adjustment oil cylinder 5 is connected to the second ear seat 17 through the second piston rod 18, and the end of the second ear seat 17 is connected to the rail pushing block 16.

[0062] The end of the piston rod 12 of the lateral adjustment oil cylinder 3 of the moving end box body 6 is connected to the swing rod 13. The swing rod 13 is connected to the cover plate 14. The end of the cover plate 14 is connected to the moving end clamping rail block 15. The movement of the moving end clamping rail block 15 is jointly controlled by two sets of piston rods, the swing rod 13, the cover plate 14 and the piston rod 12. The side of the middle part of the moving end clamping rail block 15 facing away from the rail includes a second groove to accommodate the rail pushing block 16, facilitating the completion of the rail body torsion operation.

[0063] A pull rod 21 is also connected to a longitudinal end face of the moving end clamping rail block 15. The pull rods 21 of the two moving end clamping rail blocks 15 arranged in the same direction are also connected to the same lifting ear 19. Two lifting oil cylinders 20 are also connected above the lifting ear 19, facilitating the lifting force of the lifting oil cylinders 20 to be transmitted to the moving end clamping rail block 15 through the lifting ear 19 and the pull rod 21 to drive the moving end clamping rail block 15 to adjust the vertical position.

[0064] The lifting ear 19 includes a transverse guide groove to facilitate the movement of the pull rod 21 along the transverse guide groove to adjust the lateral position of the rail.

[0065] The lateral adjustment oil cylinders 3, the rail body torsion adjustment oil cylinders 5, the swing rods 13, the cover plates 14, the moving end clamping rail blocks 15, the rail pushing blocks 16, the second ear seats 17, the second piston rods 18, the lifting ears 19 and the pull rods 21 cooperate to achieve the functions of rail clamping and lateral adjustment.

[0066] Static end operation process: The lateral adjustment oil cylinders 3 inside the static end box body 1 act in opposite directions. The piston rods 12 of the lateral adjustment oil cylinders 3 drive the connection blocks 11 and the single ear seats 10 to act, and then push the ear seats 9 and the static end clamping rail blocks 8 until the static end clamping rail blocks 8 contact and clamp the rail to be clamped. After the rail is clamped, the lateral adjustment oil cylinders 3 act in the same direction to adjust the lateral position of the rail.

[0067] Moving end operation process: Make the lateral adjustment cylinders 3 in the moving end housing 6 move towards each other. The piston rods 12 of the lateral adjustment cylinders 3 drive the connecting blocks 11, swing rods 13, cover plates 14, and moving end rail clamping blocks 15 until the moving end rail clamping blocks 15 contact the rail to be clamped and pre-clamp the rail.

[0068] Before clamping the rail, operate the lifting cylinder 20 to drive the lifting lugs 19, pull rods 21, and moving end rail clamping blocks 15 to adjust the vertical position of the rail.

[0069] Before clamping the rail, make the rail body torsion adjustment cylinders 5 move towards each other. The second piston rods 18 drive the rail pushing blocks 16 and the second ear seats 17 to extend and retract until the rail pushing blocks 16 contact and clamp the rail. Then, the rail body torsion adjustment cylinders 5 move in the same direction to adjust the torsion angle of the rail body. At the same time, the swing rods 13 rotate relative to the cover plates 14 and the moving end rail clamping blocks 15 to complete the adjustment of the rail body torsion angle.

[0070] After the torsion angle of the rail body of the rail clamped at the moving end is adjusted to be the same as that of the rail clamped at the static end, the lateral adjustment cylinders 3 move towards each other. The piston rods 12 of the lateral adjustment cylinders 3 drive the connecting blocks 11, swing rods 13, and cover plates 14 to move, and promote the moving end rail clamping blocks 15 to extend until the rail is clamped and a predetermined rail clamping force is maintained.

[0071] As Figure 5 shown, a friction block 22 is provided between the moving end rail clamping block 15 and the swing rod 13. The friction block 22 is of a cuboid structure, and a semi-cylindrical groove is formed on one side of the swing rod 13. Thus, the end of the swing rod 13 is placed in the semi-cylindrical groove structure of the friction block 22, so that the moving end rail clamping block 15 can rotate relative to the piston rod 12 of the lateral adjustment cylinder 3, facilitating the fine adjustment of the torsion of the moving end rail.

[0072] After the rail is clamped, the lateral adjustment cylinders 3 and the rail body torsion adjustment cylinders 5 move in the same direction to adjust the lateral position of the rail. At the same time, the pull rod 21 moves horizontally along the guide groove at the lower part of the lifting lug 19.

[0073] After the rail is clamped, the rail pulling cylinder 2 operates. The piston rod 4 of the rail pulling cylinder drives the moving end housing 6 and related components to perform a longitudinal movement, which can adjust the distance between the cross-sections of the two clamped rails, and can perform forging operations on the rail after the rail in the weld area is heated.

[0074] The precise rail alignment mechanism of the embodiment of the present invention can achieve the alignment adjustment work before rail welding, and solves the problem that in the invention patent with the publication number of CN 101624805 A, when the rail butt welder clamps and aligns according to the working edge of the rail, due to different reasons such as the contour, rail wear, and rail clamping mold, the rail alignment effect is not ideal in actual welding production.

[0075] Embodiment 2.1: A method for accurately aligning rails, including

[0076] Step 1. Clamp the static end of the rail.

[0077] In this step, the lateral adjustment cylinders 3 on both sides of the rail in the static end box body 1 extend towards each other, so that the piston rods 12 of the lateral adjustment cylinders 3 drive the connection blocks 11 and the single ear seats 10 to act, and then push the ear seats 9, and drive the static end rail clamping blocks 8 at the ends of the ear seats 9 to move towards the rail until the static end rail clamping blocks 8 contact and clamp the rail to be clamped.

[0078] Step 2. After the rail is clamped, the lateral adjustment cylinders 3 act in the same direction to adjust the lateral position of the rail.

[0079] Step 3. Pre-clamp the moving end of the rail.

[0080] In this step, the lateral adjustment cylinders 3 in the moving end box body 6 act towards each other, and the piston rods 12 of the lateral adjustment cylinders 3 drive the connection blocks 11 and the swing rods 13 and the cover plates 14 at the ends of the connection blocks 11 to extend, so that the moving end rail clamping blocks 15 extend towards the rail until the moving end rail clamping blocks 15 on both sides of the moving end rail contact and pre-clamp the rail to be clamped.

[0081] Step 4. Adjust the vertical position of the rail.

[0082] Before clamping the rail, the lifting cylinder 20 acts to drive the lifting lugs 19 and the pull rods 21 to pull the moving end rail clamping blocks 15 to move up or down, thereby adjusting the vertical position of the rail.

[0083] Step 5. Adjust the torsional angle of the rail body.

[0084] That is: after Step 3 and before clamping the rail, the rail body torsional adjustment cylinders 5 act towards each other, and at the same time the second piston rod 18 drives the rail pushing block 16 to expand and contract through the second ear seat 17 until the moving end rail clamping blocks 15 contact and clamp the rail, and then, the rail body torsional adjustment cylinders 5 act in the same direction to adjust the torsional angle of the rail body, and adjust the torsional angle of the rail body of the moving end clamped rail to be the same as that of the static end clamped rail. At the same time, the swing rods 13 and the cover plates 14 rotate relative to the moving end rail clamping blocks 15.

[0085] Step 6. Clamp the rail.

[0086] The lateral adjustment cylinders 3 in the moving end box body 6 act towards each other, and the piston rods 12 of the lateral adjustment cylinders 3 drive the connection blocks 11 and the swing rods 13 and the cover plates 14 to move, and urge the moving end rail clamping blocks 15 to extend until the rail is clamped and a predetermined rail clamping force is maintained.

[0087] Step 7. Adjust the lateral position of the rail.

[0088] After the rail at the waiting-to-move end is clamped, the lateral adjustment oil cylinder 3 and the rail body torsion adjustment oil cylinder 5 in the moving end box body 6 act in the same direction to adjust the lateral position of the rail at the moving end. At the same time, the pull rod 21 synchronously moves laterally along the guide groove under the lifting lug 19.

[0089] Step 8. Adjust the longitudinal position of the rail.

[0090] After the rail is clamped, the rail pulling oil cylinder 2 acts, and the piston rod 4 of the rail pulling oil cylinder drives the moving end box body 6 and related components to perform a longitudinal action, adjusting the distance between the static end rail and the moving end rail cross-section that are clamped, and performing a forging operation on the rail after heating the rail in the weld area.

[0091] The rail precise alignment method described in Embodiment 2.1 can adopt the rail precise alignment device described in Embodiment 1.1.

Claims

1. A precise rail alignment device, characterized in that: It includes a static end, a moving end and a guide rod connecting the static end and the moving end. The static end is used to keep the position of the rail fixed, and the moving end is used to adjust the lateral, longitudinal, vertical positions and the angle of the rail body; the static end is a static end box body (1); the moving end is a moving end box body (6), and the moving end includes a lateral adjustment device, a rotatable rail clamping block, a rail body angle adjustment device, and a vertical adjustment device; the rotatable rail clamping block is connected to the vertical adjustment device and the lateral adjustment device. After the lateral adjustment device is aligned and applies force, the lateral position of the rail is adjusted, and when the vertical adjustment device operates, the vertical position of the rail is adjusted; both the second side wall and the fourth side wall of the moving end box body (6) are connected with two lateral adjustment oil cylinders (3), and on both the second side wall and the fourth side wall between the two lateral adjustment oil cylinders (3), a rail body torsion adjustment oil cylinder (5) is installed. The rail body torsion adjustment oil cylinder (5) is connected to a second ear seat (17) through a second piston rod (18), and the end of the second ear seat (17) is connected to a rail pushing block (16); the moving end is connected to the piston rod (4) of the rail pulling oil cylinder. When the rail pulling device fixed at the static end operates, the moving end of the rail is driven through the piston rod (4) of the rail pulling oil cylinder.

2. The precise rail alignment device according to claim 1, characterized in that: A rail pulling oil cylinder (2) is also installed between the first side wall and the third side wall of the static end box body (1) and the moving end box body (6); the second side wall and the fourth side wall of the static end box body (1) are connected with lateral adjustment oil cylinders (3), and the moving ends of the lateral adjustment oil cylinders (3) are located inside the box body of the static end box body (1); the rail clamping block is fixed at the end of the piston rod of the lateral adjustment device, and the rail clamping block is supported by the piston rod (4) of the rail pulling oil cylinder.

3. The precise rail alignment device according to claim 1, characterized in that: The guide rod (7) is fixed at the static end. During operation, the entire precise rail alignment device is connected to an external mechanism through a suspension device fixed on the guide rod (7), and then the alignment operations of the static end and the moving end are carried out in sequence.

4. The precise rail alignment device according to claim 1, characterized in that: The moving end of the lateral adjustment device at the static end is connected to a connecting block (11). The connecting block (11) includes an oblong hole through which the moving end of the rail pulling device passes. The moving end of the rail pulling device and the connecting block (11) are in a cross shape, and when the moving end of the lateral adjustment device at the static end drives the connecting block (11) to move, the oblong hole does not affect the relative movement between the moving end of the rail pulling device and the connecting block (11).

5. The precise rail alignment device according to claim 1, characterized in that: The end of the piston rod (12) of the lateral adjustment oil cylinder (3) of the moving end box body (6) is connected to a swing rod (13). The swing rod (13) is connected to a cover plate (14). The end of the cover plate (14) is connected to a moving end rail clamping block (15). The cover plate (14) is fixed on the moving end rail clamping block through a threaded connection. The swing rod is fixed on the connecting block through a threaded connection. The swing rod (13) is of a T-shaped structure.

6. The precise rail alignment device according to claim 5, characterized in that: A rectangular hole is provided on the cover plate (14). The width of the rectangular hole is the same as the diameter of the swing rod (13), which can prevent the swing rod (13) with a T-shaped structure from detaching from the moving end rail clip (15).

7. A method for precisely aligning rails using the rail precise alignment device according to claim 2, characterized in that it includes: Step a): The static end rail clip clamps the rail and remains stationary in the centered position; Step b): The lateral adjustment device and the lifting device act to adjust the lateral and vertical positions of the rail, and maintain the pre-clamping of the moving end rail clip to the rail; Step c): The rail body torsion adjustment device acts to adjust the torsion angle of the rail body; Step d): The lateral adjustment device acts to push the moving end rail clip to clamp the rail and maintain a predetermined clamping force; Step e): The rail pulling device acts, and the moving end of the rail pulling device drives the moving end rail to act to adjust the longitudinal position of the rail clamped at the moving end.

8. A method for precisely aligning rails using the rail precise alignment device according to claim 1, characterized in that it includes: Step S1. Clamp the static end of the rail; Step S2. Adjust the lateral position of the static end of the rail; Step S3. Pre-clamp the moving end of the rail; Step S4. Adjust the vertical position of the moving end rail; Step S5. Adjust the torsion angle of the moving end rail; Step S6. Clamp the moving end of the rail; Step S7. Adjust the lateral position of the moving end of the rail to align the moving end rail with the static end rail; Step S8. Adjust the longitudinal position of the rail.

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