Welding equipment for traffic track

Abstract

The invention relates to the technical field of track welding, in particular to traffic track welding equipment which comprises a mounting frame and a clamping mechanism, a welding opening is formed in the mounting frame, a crucible is arranged on the welding opening, and adjusting openings are located in the two sides of the welding opening; a first lead screw is arranged in the adjusting opening, a blocking ring is arranged in the middle of the first lead screw, the directions of threads on the two sides of the blocking ring are opposite, the output end of the rotating motor is connected with the first lead screw, sliding blocks are arranged on the portions, on the two sides of the blocking ring, of the first lead screw respectively, positioning blocks are arranged at the bottoms of the sliding blocks, and the I-shaped rail is positioned through the positioning blocks. The clamping mechanism comprises a mounting frame and a clamping ring, the two ends of the bottom of the mounting frame are fixedly arranged at the tops of the sliding blocks respectively, a buffer groove is formed in the side wall of the mounting frame, a spring is arranged in the buffer groove, a buffer block is arranged at one end of the clamping ring and connected with the spring, and the other end of the clamping ring clamps the crucible. After welding is completed, when the crucible is moved to the next welding position, the stability of the crucible is effectively improved.

Description

Technical Field

[0001] The present invention relates to the technical field of track welding, and specifically to a welding device for traffic tracks. Background Art

[0002] With the development of society and the rapid progress of technology, the railway network has been widely covered in the country. The smooth operation of the railway makes our lives more convenient and people's daily travel more convenient. The laying of tracks is an important component of the railway network. During the process of railway laying, it is necessary to splice the tracks. The tracks are spliced through a welding device. When welding the railway tracks, generally the aluminothermic method is used to weld the joints of the tracks. The mixture of aluminum powder and iron oxide is ignited. Due to the large amount of heat released by the reaction, the displaced iron flows out in a molten state, and the molten iron is allowed to flow into the cracks of the tracks. After cooling, the tracks are firmly bonded together.

[0003] Chinese Patent CN118143523B discloses a welding device for traffic tracks, which solves the problem that in the prior art, the smoke and residues generated by the violent reaction of the welding flux in the crucible during welding will contact the crucible top cover and cause shaking, resulting in the offset of the crucible.

[0004] However, this patent still has the following problems: After welding a welding joint, it is necessary to release the clamping of the graphite mold on the track so as to facilitate the movement to the next welding joint. However, after releasing the clamping of the graphite mold, the positioning of the crucible is also released synchronously, resulting in the crucible being prone to shaking when the whole device moves. Summary of the Invention

[0005] The purpose of the present application is to provide a welding device for traffic tracks, which solves the problem of the instability of the crucible when the device moves to the next welding joint.

[0006] To achieve the above object, the present application provides a welding device for a traffic track, including a mounting frame, positioning blocks, and a clamping mechanism. A welding port is provided on the mounting frame, and a crucible is arranged on the welding port. Adjusting ports are provided on both sides of the mounting frame, and the adjusting ports are located on both sides of the welding port. A first lead screw is arranged in the adjusting port, and a blocking ring is arranged in the middle of the first lead screw. The thread directions on both sides of the blocking ring are opposite. A rotating motor is arranged outside the mounting frame, and the output end of the rotating motor is connected to the first lead screw. Sliders are respectively arranged on the first lead screws on both sides of the blocking ring, and the positioning blocks are arranged at the bottoms of the sliders. The positioning blocks position the I-shaped track. The clamping mechanism includes a mounting bracket and a clamping ring. Both ends of the bottom of the mounting bracket are fixedly arranged on the top of the slider. A buffer groove is provided on the side wall of the mounting bracket, and a spring is arranged in the buffer groove. One end of the clamping ring is provided with a buffer block, and the buffer block is arranged in the buffer groove and connected to the spring. The other end of the clamping ring clamps the crucible.

[0007] As a further aspect of the present invention: rollers are arranged at the bottom of the mounting frame, and the rollers are rotatably arranged on the top of the I-shaped track.

[0008] As a further aspect of the present invention: auxiliary grooves are provided on the side walls at both ends of the mounting frame, and a double-shaft motor is arranged in the auxiliary grooves. Second lead screws are respectively connected to both ends of the double-shaft motor, and the second lead screws are rotatably arranged in the auxiliary grooves. Auxiliary blocks are arranged on the second lead screws, and brackets are arranged on the side walls of the auxiliary blocks. Guide wheels are rotatably arranged in the middle of the brackets, and the guide wheels are in rolling cooperation with the grooves on both sides of the I-shaped track.

[0009] As a further aspect of the present invention: when the positioning blocks clamp the I-shaped track, the spring is in a compressed state.

[0010] As a further aspect of the present invention: a mixture of aluminum powder and iron oxide is arranged inside the crucible.

[0011] As a further aspect of the present invention: the size of the clamping ring is adapted to the outer peripheral wall size of the crucible.

[0012] As a further aspect of the present invention: a push plate is arranged on one side of the top of the mounting frame, and a grasping groove is arranged on the push plate.

[0013] As a further aspect of the present invention: smoking boxes are arranged on both sides of the bottom of the mounting frame, an air extraction pump is arranged on the side wall of the smoking box, and the smoking port of the smoking box is aligned with the gap between the two I-shaped tracks.

[0014] As a further aspect of the present invention: an activated carbon filter screen is arranged inside the smoking box.

[0015] As a further solution of the present invention: the size of the welding joint is adapted to the size of the gap between the two I-shaped rails.

[0016] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0017] 1. In the present invention, the rotation motor drives the first lead screw to rotate. Since the thread directions on both sides of the blocking ring in the middle of the first lead screw are opposite, when the lead screw rotates, the sliders on both sides of the blocking ring will move relatively or in opposite directions along the lead screw. The positioning blocks at the bottom of the sliders move as the sliders move. By adjusting the positions of the sliders, the positioning blocks can accurately position the I-shaped rails, and the device is fixed at a suitable welding position on the rails. At the same time, the mounting frame moves as the sliders move. When the positioning blocks position the rails, the mounting frame receives corresponding forces, and the buffer blocks compress the springs in the buffer grooves. The reaction forces generated by the springs cause the clamping rings to tightly clamp the crucible. Through the elastic action of the springs, the clamping force can be automatically adjusted according to the actual situation of the crucible to ensure that the crucible remains stable throughout the welding process. At the same time, after the welding is completed and the positioning of the I-shaped rails is released, the mounting frame moves synchronously, but the clamping rings still maintain the clamping of the crucible under the elastic force of the springs, avoiding the movement of the crucible when moving to the next welding position and improving the stability.

[0018] 2. By setting rollers in the present invention, it is convenient for the device to move easily on the rails, reducing the labor intensity of the operators and the wear between the device and the rails. At the same time, the coordinated work of the dual-axis motor, the second lead screw, the auxiliary block and the guide wheels in the auxiliary groove can accurately adjust the horizontal position of the mounting frame to ensure the welding accuracy; the rolling cooperation between the guide wheels and the rail grooves makes the device move more smoothly, reducing the damage to the rails, improving the positioning accuracy of the device and the welding quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following will briefly introduce the drawings required for the prior art and the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0020] Figure 1 It is a three-dimensional structural schematic diagram of a welding device for traffic rails.

[0021] Figure 2 It is a schematic diagram of the welding joint and the adjustment port.

[0022] Figure 3 It is a schematic diagram of the crucible installation.

[0023] Figure 4Schematic diagram for the installation of the positioning block.

[0024] Figure 5 Schematic diagram of the three-dimensional structure of the clamping mechanism.

[0025] Figure 6 Schematic diagram for the installation of the buffer block.

[0026] Reference numerals in the figure: 1, mounting frame; 11, welding joint; 12, adjustment opening; 13, roller; 14, auxiliary groove; 2, positioning block; 3, first lead screw; 31, blocking ring; 32, slider; 33, rotary motor; 4, mounting bracket; 41, buffer groove; 42, spring; 5, clamping ring; 51, buffer block; 6, dual-axis motor; 61, second lead screw; 62, auxiliary block; 63, bracket; 64, guide wheel; 7, push plate; 71, grasping groove; 8, smoking box; 81, air extraction pump; 9, crucible. Detailed implementation manners

[0027] To make the objectives, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are some but not all of the embodiments of the present application. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present application without creative efforts shall fall within the protection scope of the present application.

[0028] As Figures 1 to 6 shown, a traffic track welding device includes a mounting frame 1, a positioning block 2 and a clamping mechanism. A welding joint 11 is provided on the mounting frame 1, and a crucible 9 is arranged on the welding joint 11. Adjustment openings 12 are provided on both sides of the mounting frame 1, and the adjustment openings 12 are located on both sides of the welding joint 11.

[0029] A first lead screw 3 is arranged in the adjustment opening 12. A blocking ring 31 is arranged in the middle of the first lead screw 3, and the thread directions on both sides of the blocking ring 31 are opposite. A rotary motor 33 is arranged on the outer side of the mounting frame 1, and the output end of the rotary motor 33 is connected to the first lead screw 3. Sliders 32 are respectively arranged on the first lead screws 3 on both sides of the blocking ring 31, and the positioning block 2 is arranged at the bottom of the slider 32. The positioning block 2 positions the I-shaped track.

[0030] The rotary motor 33 drives the first lead screw 3 to rotate. Since the thread directions on both sides of the blocking ring 31 in the middle of the first lead screw 3 are opposite, when the lead screw rotates, the sliders 32 on both sides of the blocking ring 31 will move relatively or in opposite directions along the lead screw. The positioning block 2 at the bottom of the slider 32 moves along with the movement of the slider 32. By adjusting the position of the slider 32, the positioning block 2 can accurately position the I-shaped track and fix the device at a suitable welding position on the track.

[0031] The clamping mechanism includes a mounting frame 4 and a clamping ring 5. Both ends of the bottom of the mounting frame 4 are fixedly arranged on the top of the slider 32. A buffer groove 41 is formed on the side wall of the mounting frame 4. A spring 42 is arranged in the buffer groove 41. One end of the clamping ring 5 is provided with a buffer block 51. The buffer block 51 is arranged in the buffer groove 41 and is connected to the spring 42. The other end of the clamping ring 5 clamps the crucible 9. When the positioning block 2 clamps the I-shaped rail, the spring 42 is in a compressed state, and a damping device adapted to the spring 42 is arranged on the spring 42.

[0032] By fixing both ends of the bottom of the mounting frame 4 on the top of the slider 32, it moves along with the movement of the slider 32. When the positioning block 2 positions the rail, the mounting frame 4 receives a corresponding acting force. The buffer block 51 compresses the spring 42 in the buffer groove 41, and the reaction force generated by the spring 42 enables the clamping ring 5 to tightly clamp the crucible 9. Through the elastic action of the spring 42, the clamping force can be automatically adjusted according to the actual situation of the crucible 9 to ensure that the crucible 9 remains stable during the entire welding process. At the same time, after the welding is completed, when the positioning of the I-shaped rail is released, the mounting frame 4 moves synchronously, but the clamping ring 5 still clamps the crucible 9 under the elastic force of the spring 42, avoiding the movement of the crucible 9 when moving to the next welding position and improving the stability.

[0033] Rollers 13 are arranged at the bottom of the mounting frame 1. The rollers 13 are rotatably arranged on the top of the I-shaped rail. The rollers 13 are connected to the bottom of the mounting frame 1 through shafts and can roll on the top of the I-shaped rail. When an external force is applied to push the mounting frame 1, the rollers 13 rotate on the rail, converting sliding friction into rolling friction, reducing the resistance of the equipment to move, enabling the equipment to move easily on the rail; improving the convenience and flexibility of the equipment to move on the rail, reducing the friction during the movement of the equipment, reducing the labor intensity of the operator, and at the same time reducing the wear between the equipment and the rail, prolonging the service life of the equipment and the rail.

[0034] Auxiliary grooves 14 are formed on the side walls at both ends of the mounting frame 1. A dual-axis motor 6 is arranged in the auxiliary grooves 14. Second lead screws 61 are respectively connected to both ends of the dual-axis motor 6. The second lead screws 61 are rotatably arranged in the auxiliary grooves 14. Auxiliary blocks 62 are arranged on the second lead screws 61. Brackets 63 are arranged on the side walls of the auxiliary blocks 62. Guide wheels 64 are rotatably arranged in the middle of the brackets 63. The guide wheels 64 are in rolling cooperation with the grooves on both sides of the I-shaped rail.

[0035] The double-axis motor 6 drives the second lead screw 61 to rotate in the auxiliary groove 14. The auxiliary block 62 is threadedly connected to the second lead screw 61. Therefore, the auxiliary block 62 will move in the auxiliary groove 14 as the lead screw rotates. The guide wheel 64 in the middle of the bracket 63 on the side wall of the auxiliary block 62 rolls and mates with the grooves on both sides of the I-shaped track. When the auxiliary block 62 moves, the guide wheel 64 rolls along the groove, thereby driving the mounting frame 1 to move horizontally on the track, achieving precise adjustment of the position of the welding joint 11, being able to precisely adjust the horizontal position of the mounting frame 1, ensuring the accuracy of welding. The rolling fit between the guide wheel 64 and the track groove makes the movement of the equipment more stable, reduces damage to the track, improves the positioning accuracy of the equipment, and guarantees the welding quality.

[0036] Inside the crucible 9, a mixture of aluminum powder and iron oxide is provided. Ignite the mixture of aluminum powder and iron oxide. Due to the large amount of heat released by the reaction, the displaced iron flows out in a molten state, and the molten iron is allowed to flow into the crack of the railway track. After cooling, the railway track is firmly bonded together.

[0037] The size of the clamping ring 5 is adapted to the outer peripheral wall size of the crucible 9. The stability of the clamping of the crucible 9 by the clamping ring 5 is improved.

[0038] On one side of the top of the mounting frame 1, a push plate 7 is provided, and a gripping groove 71 is provided on the push plate 7. The push plate 7 is fixed to one side of the top of the mounting frame 1 by welding or bolt connection, etc. The operator holds the gripping groove 71 on the push plate 7 with the hand and applies a thrust or a pulling force, so that the force acts on the mounting frame 1, thereby pushing the entire equipment to move on the track.

[0039] On both sides of the bottom of the mounting frame 1, smoking boxes 8 are provided. An air extraction pump 81 is provided on the side wall of the smoking box 8, and the smoking port of the smoking box 8 is aligned with the gap between the two I-shaped tracks. An activated carbon filter screen is provided inside the smoking box 8.

[0040] When the air extraction pump 81 works, a negative pressure is formed inside the smoking box 8, so that the air carrying welding fumes at the gap between the two I-shaped tracks is sucked into the smoking box 8. After the fumes enter the smoking box 8, they first pass through the activated carbon filter screen. Activated carbon has a porous structure and can adsorb harmful substances and odors in the fumes. The purified air is discharged from the exhaust port of the smoking box 8.

[0041] The size of the welding joint 11 is adapted to the size of the gap between the two I-shaped tracks, improving the welding quality.

[0042] Working principle of the present invention: First, the mounting frame 1 is pushed by the gripping groove 71 on the push plate 7, and the bottom rollers 13 thereof roll on the top of the I-shaped track to move the device to the welding position. Then, the rotation motor 33 is started to drive the first lead screw 3 to rotate. By utilizing the characteristic that the thread directions on both sides of the blocking ring 31 are opposite, the slider 32 drives the positioning block 2 to position the I-shaped track. At the same time, the mounting frame 4 moves with the slider 32, and the buffer block 51 compresses the spring 42 in the buffer groove 41 on the side wall of the mounting frame 4. The reaction force of the spring 42 enables the clamping ring 5 to stably clamp the crucible 9 with a size adapted to the outer peripheral wall, and the damper on the spring 42 assists in maintaining stability. Then, the biaxial motor 6 drives the second lead screw 61 to rotate, so that the auxiliary block 62 moves. Through the rolling cooperation between the guide wheel 64 and the track groove, the horizontal position of the mounting frame 1 is precisely adjusted to ensure that the weld interface 11 is adapted to the track gap. After preparation, the mixture of aluminum powder and iron oxide in the crucible 9 is ignited, and the high-temperature molten iron generated by the reaction flows into the rail crack to achieve welding. During the welding process, the air extraction pump 81 forms a negative pressure in the smoking box 8, inhales the welding fumes at the track gap, and discharges them after purification by the activated carbon filter screen. When the track positioning is released after welding is completed, the mounting frame 4 moves synchronously, and the clamping ring 5 still clamps the crucible 9 under the elastic force of the spring 42, so as to move to the next welding position to continue the operation.

[0043] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present application. Various modifications to these embodiments will be obvious to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application will not be limited to these embodiments shown herein, but will be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A welding device for a traffic track, comprising a mounting frame (1), positioning blocks (2) and a clamping mechanism. A welding port (11) is provided on the mounting frame (1), and a crucible (9) is arranged on the welding port (11). Adjustment ports (12) are provided on both sides of the mounting frame (1), and the adjustment ports (12) are located on both sides of the welding port (11). It is characterized in that A first lead screw (3) is arranged in the adjustment port (12). A blocking ring (31) is arranged in the middle of the first lead screw (3). The thread directions on both sides of the blocking ring (31) are opposite. A rotary motor (33) is arranged on the outer side of the mounting frame (1). The output end of the rotary motor (33) is connected to the first lead screw (3). Sliders (32) are respectively arranged on the first lead screw (3) on both sides of the blocking ring (31). The positioning blocks (2) are arranged at the bottoms of the sliders (32). The positioning blocks (2) position the I-shaped track. The clamping mechanism comprises a mounting bracket (4) and a clamping ring (5). Both ends of the bottom of the mounting bracket (4) are fixedly arranged on the tops of the sliders (32). A buffer groove (41) is provided on the side wall of the mounting bracket (4). A spring (42) is arranged in the buffer groove (41). One end of the clamping ring (5) is provided with a buffer block (51). The buffer block (51) is arranged in the buffer groove (41) and is connected to the spring (42). The other end of the clamping ring (5) clamps the crucible (9).

2. The traffic track welding equipment according to claim 1, characterized in that, Rollers (13) are arranged at the bottom of the mounting frame (1). The rollers (13) are rotatably arranged on the top of the I-shaped track.

3. A traffic track welding device according to claim 1, characterized in that, Auxiliary grooves (14) are provided on the side walls at both ends of the mounting frame (1). A double-shaft motor (6) is arranged in the auxiliary grooves (14). Second lead screws (61) are respectively connected to both ends of the double-shaft motor (6). The second lead screws (61) are rotatably arranged in the auxiliary grooves (14). Auxiliary blocks (62) are arranged on the second lead screws (61). A bracket (63) is arranged on the side wall of the auxiliary block (62). A guide wheel (64) is rotatably arranged in the middle of the bracket (63). The guide wheel (64) is in rolling cooperation with the grooves on both sides of the I-shaped track.

4. A traffic track welding device according to claim 1, characterized in that, When the positioning blocks (2) clamp the I-shaped track, the spring (42) is in a compressed state.

5. A traffic track welding device according to claim 1, characterized in that, A mixture of aluminum powder and iron oxide is arranged inside the crucible (9).

6. A traffic track welding device according to claim 1, characterized in that, The size of the clamping ring (5) is adapted to the outer peripheral wall size of the crucible (9).

7. A traffic track welding device according to claim 1, characterized in that, A push plate (7) is arranged on one side of the top of the mounting frame (1). A grip groove (71) is arranged on the push plate (7).

8. A traffic track welding device according to claim 1, characterized in that, Smoking boxes (8) are arranged on both sides of the bottom of the mounting frame (1). An air extraction pump (81) is arranged on the side wall of the smoking box (8). The smoking ports of the smoking boxes (8) are aligned with the gap between the two I-shaped tracks.

9. A traffic track welding device according to claim 8, characterized in that, An activated carbon filter screen is arranged inside the smoking box (8).

10. A traffic track welding device according to claim 1, characterized in that, The size of the welding port (11) is adapted to the size of the gap between the two I-shaped tracks.

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