A welding tool for subway track construction

Abstract

The present invention relates to a welding tool for subway track construction, characterized in that it includes a first clamping seat, a second clamping seat, a first fixed seat, a second fixed seat, a welding guide seat, and a grinding guide seat. The right end of the first clamping seat is connected to the left end of the second clamping seat via a connecting rod. The first fixed seat is mounted on the outer wall of the left end of the first clamping seat, and the second fixed seat is mounted on the outer wall of the right end of the second clamping seat. The welding guide seat is sleeved on the outer wall of the first clamping seat and movably connected thereto. The grinding guide seat is sleeved on the outer wall of the second clamping seat and movably connected thereto. A translation mechanism is provided between the welding guide seat and the first fixed seat, and between the grinding guide seat and the second fixed seat. This design has the advantages of simple structure, ease of manufacture, practicality, and high efficiency.

Description

Technical Field

[0001] The present invention relates to the technical field of subway track construction, and in particular to a welding tool used for subway track construction. Background Art

[0002] Long rail welding is a method used to join multiple rails together. It utilizes the heat generated by the combustion of acetylene and oxygen to melt the ends of the two rails, then join them together. This welding method is relatively common in subway track construction.

[0003] Existing subway track welding often adopts manual welding, which has high requirements on labor quality and requires a long period of work experience to ensure welding quality. In addition, the welds often need to be polished after welding. Conventional welding tooling cannot be used in conjunction with the polishing mechanism and has strong limitations. Therefore, in order to solve the above problems, it is particularly important to design a welding tool for subway track construction. Summary of the Invention

[0004] In order to solve the above problems, the present invention designs a welding tool for subway track construction, which can not only move the welding guide seat between the first clamping seat and the second clamping seat, and complete the welding work of the subway track by holding the first grip and utilizing the cooperation of the first movable block and the first arc groove, but also move the grinding guide seat between the first clamping seat and the second clamping seat, and complete the grinding work of the weld by holding the second grip and utilizing the cooperation of the second movable block and the second arc groove, thereby increasing practical performance.

[0005] In order to solve the above technical problems, the present invention provides a welding tool for subway track construction, which is characterized in that it includes a first clamping seat, a second clamping seat, a first fixed seat, a second fixed seat, a welding guide seat and a grinding guide seat, the right end of the first clamping seat is connected to the left end of the second clamping seat through a connecting rod, the first fixed seat is installed on the outer wall of the left end of the first clamping seat, the second fixed seat is installed on the outer wall of the right end of the second clamping seat, the welding guide seat is sleeved on the outer wall of the first clamping seat and movably connected thereto, the grinding guide seat is sleeved on the outer wall of the second clamping seat and movably connected thereto, a translation mechanism is respectively provided between the welding guide seat and the first fixed seat and between the grinding guide seat and the second fixed seat, the left and right sides of the welding guide seat are connected to first arc-shaped protective baffles, there is a gap between the inner wall of the first arc-shaped protective baffle and the outer wall of the first clamping seat, the left and right sides of the grinding guide seat are connected to second arc-shaped protective baffles, there is a gap between the inner wall of the second arc-shaped protective baffle and the outer wall of the second clamping seat.

[0006] Further: rail wheels are provided on the inner walls of the first clamping seat and the second clamping seat, and both the first clamping seat and the second clamping seat run on the subway track via the rail wheels provided on the inner top walls.

[0007] Furthermore: the translation mechanism includes an adjusting bolt and a threaded through hole opened on the first fixed seat and the second fixed seat, the adjusting bolt matches the threaded through hole, one end of the adjusting bolt connected to the first fixed seat passes through the threaded through hole and is movably connected to the first arc-shaped protective baffle, and one end of the adjusting bolt connected to the second fixed seat passes through the threaded through hole and is movably connected to the second arc-shaped protective baffle.

[0008] Furthermore, three telescopic rod assemblies are respectively provided between the first fixing seat and the first curved protective baffle, and between the second fixing seat and the second curved protective baffle. The telescopic rod assemblies include an outer cylinder, a transition cylinder, and an inner cylinder. One end of the outer cylinder is fixed to the first fixing seat or the second fixing seat, one end of the transition cylinder extends into the other end of the outer cylinder and is movably connected to the outer cylinder through a first guide block, one end of the inner cylinder extends into the other end of the transition cylinder and is movably connected to the transition cylinder through a second guide block, and the other end of the transition cylinder is rotatably connected to the first curved protective baffle or the second curved protective baffle. One of the three telescopic rod assemblies is opposite to the threaded through-hole, and one end of the adjusting bolt passes through the outer cylinder and the transition cylinder in sequence and is connected to the inner wall of the inner cylinder through a fixing block. The first guide block and the second guide block are both cylindrical, and the centers of the first guide block and the second guide block are each provided with a through-hole for the adjusting bolt to pass through. The outer diameter of the first guide block matches the inner diameter of the outer cylinder, and the outer diameter of the second guide block matches the inner diameter of the transition cylinder.

[0009] Furthermore: a first limit cover is installed on the end where the outer cylinder is connected to the transition cylinder, and the first guide block is restricted in the outer cylinder by the first limit cover; a second limit cover is installed on the end where the transition cylinder is connected to the inner cylinder, and the second guide block is restricted in the transition cylinder by the second limit cover.

[0010] Furthermore: two clamping threaded holes are respectively provided on the front and rear ends of the left side of the first fixing seat and the front and rear ends of the right side of the second fixing seat. The clamping threaded holes on the same side are arranged in a straight line and each is connected with a clamping bolt. One end of the clamping bolt passes through the clamping threaded hole and is connected to the clamping plate. The first fixing seat and the second fixing seat both clamp and fix the subway track through the clamping plates on the inner walls on both sides.

[0011] Furthermore: the welding guide seat is semicircular and has a first through groove on it, and first arc grooves are provided on the inner walls on both sides of the first through groove, and a first movable block is slidably connected in the first arc groove, the first movable block extends out of the welding guide seat and is fixedly connected to the first support plate, the first support plate is connected to the first fixed plate through a first spring, the first fixed plate is connected to the first grip, the first grip passes through the first support plate and the first movable block and is connected to the first mounting block, the first grip is movably connected to the first support plate and the first movable block, the first spring surrounds the outside of the first grip, and a welding gun is installed on the end of the first mounting block away from the first grip.

[0012] Furthermore: the grinding guide seat is semicircular and has a second through groove on it, and second arc grooves are provided on the inner walls on both sides of the second through groove, and a second movable block is slidably connected in the second arc groove, and the second movable block extends out of the welding guide seat and is fixedly connected to the second support plate, and the second support plate is connected to the second fixed plate through a second spring, and the second fixed plate is connected to the second grip rod, and the second grip rod passes through the second support plate and the second movable block and is connected to the second mounting block, and the second grip rod is movably connected to the second support plate and the second movable block, and the second spring surrounds the outside of the second grip rod, and the grinding machine head is installed on the end of the second mounting block away from the second grip rod.

[0013] Furthermore: a positioning support column is provided at the left end of the grinding guide seat, and a positioning support hole is opened at the right end of the welding guide seat relative to the position of the positioning support column.

[0014] After adopting the above structure, the present invention can not only move the welding guide seat between the first clamping seat and the second clamping seat, and complete the welding work on the subway track by holding the first gripping rod and utilizing the cooperation of the first movable block and the first arc-shaped groove, but also can move the grinding guide seat between the first clamping seat and the second clamping seat, and complete the grinding work on the weld by holding the second gripping rod and utilizing the cooperation of the second movable block and the second arc-shaped groove, thereby increasing the practical performance; and the present invention can also play a good supporting role through the cooperation of the positioning support column and the positioning support hole, thereby increasing the stability of the structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0016] Figure 1 It is a structural schematic diagram of the present invention.

[0017] Figure 2 This is the connection structure diagram of the welding guide seat.

[0018] Figure 3 for Figure 1 A magnified view of center. DETAILED DESCRIPTION

[0019] like Figure 1 The welding tool shown in the figure is used for subway track construction, including a first clamping seat 1, a second clamping seat 2, a first fixed seat 4, a second fixed seat 5, a welding guide seat 6 and a grinding guide seat 7. The right end of the first clamping seat is connected to the left end of the second clamping seat through a connecting rod 26. The first fixed seat is installed on the outer wall of the left end of the first clamping seat, and the second fixed seat is installed on the outer wall of the right end of the second clamping seat. The welding guide seat is sleeved on the outer wall of the first clamping seat and movably connected to it. The grinding guide seat is sleeved on the outer wall of the second clamping seat and movably connected to it. A translation mechanism is respectively provided between the welding guide seat and the first fixed seat and between the grinding guide seat and the second fixed seat. The left and right sides of the welding guide seat are connected to first arc-shaped protective baffles, and there is a gap between the inner wall of the first arc-shaped protective baffle and the outer wall of the first clamping seat. The left and right sides of the grinding guide seat are connected to second arc-shaped protective baffles, and there is a gap between the inner wall of the second arc-shaped protective baffle and the outer wall of the second clamping seat. During operation, when welding is required, the first clamping seat and the second clamping seat are moved, and the first clamping seat and the second clamping seat are respectively fixed on both sides of the required welding position of the subway track, and the translation mechanism connected to the first fixed seat is started to move the welding guide seat between the first fixed seat and the second fixed seat to complete the welding work; then the welding guide seat is returned to its original position, and the translation mechanism connected to the second fixed seat is started to move the grinding guide seat between the first fixed seat and the second fixed seat to complete the weld grinding work.

[0020] like Figure 1 Track wheels are provided on the inner walls of the first clamping seat and the second clamping seat, and both the first clamping seat and the second clamping seat run on the subway track 27 via the track wheels provided on the inner top walls.

[0021] like Figure 1 The translation mechanism shown includes an adjusting bolt 9 and threaded through holes opened on the first fixing seat and the second fixing seat. The adjusting bolt matches the threaded through hole. One end of the adjusting bolt connected to the first fixing seat passes through the threaded through hole and is movably connected to the first arc-shaped protective baffle. One end of the adjusting bolt connected to the second fixing seat passes through the threaded through hole and is movably connected to the second arc-shaped protective baffle.

[0022] like Figure 1Three telescopic rod assemblies are respectively arranged between the first fixed seat and the first curved protective baffle, and between the second fixed seat and the second curved protective baffle. The telescopic rod assembly includes an outer cylinder, a transition cylinder and an inner cylinder, one end of the outer cylinder is fixed on the first fixed seat or the second fixed seat, one end of the transition cylinder extends into the other end of the outer cylinder and is movably connected to the outer cylinder through the first guide block, one end of the inner cylinder extends into the other end of the transition cylinder and is movably connected to the transition cylinder through the second guide block, and the other end of the transition cylinder is rotatably connected to the first curved protective baffle or the second curved protective baffle, one of the three telescopic rod assemblies is facing the threaded through hole, one end of the adjusting bolt passes through the outer cylinder and the transition cylinder in sequence and is connected to the inner wall of the inner cylinder through the fixed block, the first guide block and the second guide block are both cylindrical, and the center of the first guide block and the second guide block are both provided with a through hole for the adjusting bolt to pass through, the outer diameter size of the first guide block matches the inner diameter size of the outer cylinder, and the outer diameter size of the second guide block matches the inner diameter size of the transition cylinder.

[0023] A first limit cover is installed on one end where the outer cylinder is connected to the transition cylinder, and the first guide block is restricted in the outer cylinder by the first limit cover. A second limit cover is installed on one end where the transition cylinder is connected to the inner cylinder, and the second guide block is restricted in the transition cylinder by the second limit cover.

[0024] like Figure 1 Two clamping threaded holes are respectively provided on the front and rear ends of the left side of the first fixing seat and the front and rear ends of the right side of the second fixing seat. The clamping threaded holes on the same side are arranged in a straight line and each is connected with a clamping bolt 3. One end of the clamping bolt passes through the clamping threaded hole and is connected to the clamping plate. The first fixing seat and the second fixing seat are clamped and fixed to the subway track through the clamping plates on the inner walls on both sides.

[0025] like Figure 2 The welding guide seat shown is semicircular and has a first through groove on it. First arc grooves are provided on the inner walls on both sides of the first through groove. A first movable block 15 is slidably connected in the first arc groove. The first movable block extends out of the welding guide seat and is fixedly connected to the first support plate 13. The first support plate is connected to the first fixed plate 12 through a first spring 14. The first fixed plate is connected to the first grip 11. The first grip passes through the first support plate and the first movable block and is connected to the first mounting block 16. The first grip is movably connected to the first support plate and the first movable block. The first spring surrounds the outside of the first grip, and a welding gun 17 is installed on the end of the first mounting block away from the first grip.

[0026] like Figure 3The grinding guide seat shown is semicircular and has a second through groove on it. Second arc grooves are provided on the inner walls on both sides of the second through groove. A second movable block 23 is slidably connected in the second arc groove. The second movable block extends out of the welding guide seat and is fixedly connected to the second support plate 22. The second support plate is connected to the second fixed plate 19 through a second spring 20. The second fixed plate is connected to the second grip rod 18. The second grip rod passes through the second support plate and the second movable block and is connected to the second mounting block 21. The second grip rod is movably connected to the second support plate and the second movable block. The second spring surrounds the outside of the second grip rod, and the grinding machine head 24 is installed on the end of the second mounting block away from the second grip rod.

[0027] like Figure 1 The left end of the polishing guide seat is provided with a positioning support column 10, and the right end of the welding guide seat is provided with a positioning support hole at a position corresponding to the positioning support column. After moving the polishing guide seat between the first and second clamping seats, the welding guide seat is moved rightward to connect the positioning support column into the positioning support hole before polishing can proceed. The present invention provides good support through the cooperation of the positioning support column and the positioning support hole, thereby increasing the stability of the structure.

[0028] To sum up, the present invention can not only move the welding guide seat between the first clamping seat and the second clamping seat, and complete the welding work of the subway track by holding the first grip and utilizing the cooperation of the first movable block and the first arc groove, but also move the grinding guide seat between the first clamping seat and the second clamping seat, and complete the grinding work of the weld by holding the second grip and utilizing the cooperation of the second movable block and the second arc groove, thereby increasing practical performance.

[0029] The above are merely preferred embodiments of the present invention. The scope of protection of the present invention is not limited to the above embodiments. All technical solutions based on the principles of the present invention are within the scope of protection of the present invention. It should be noted that for those skilled in the art, various improvements and modifications that do not depart from the principles of the present invention should be considered within the scope of protection of the present invention.

Claims

1. A welding tool for subway track construction, characterized by: The invention comprises a first clamping seat (1), a second clamping seat (2), a first fixed seat (4), a second fixed seat (5), a welding guide seat (6) and a grinding guide seat (7), the right end of the first clamping seat is connected to the left end of the second clamping seat through a connecting rod (26), the first fixed seat is installed on the outer wall of the left end of the first clamping seat, the second fixed seat is installed on the outer wall of the right end of the second clamping seat, the welding guide seat is sleeved on the outer wall of the first clamping seat and movably connected thereto, the grinding guide seat is sleeved on the outer wall of the second clamping seat and movably connected thereto, a translation mechanism is respectively provided between the welding guide seat and the first fixed seat and between the grinding guide seat and the second fixed seat, the left and right sides of the welding guide seat are connected to first arc-shaped protective baffles, there is a gap between the inner wall of the first arc-shaped protective baffle and the outer wall of the first clamping seat, the left and right sides of the grinding guide seat are connected to second arc-shaped protective baffles, there is a gap between the inner wall of the second arc-shaped protective baffle and the outer wall of the second clamping seat.

2. The welding tool for subway track construction according to claim 1, characterized in that: Track wheels are provided on the inner walls of the first clamping seat and the second clamping seat, and both the first clamping seat and the second clamping seat run on the subway track (27) via the track wheels provided on the inner top walls.

3. The welding tool for subway track construction according to claim 1, characterized in that: The translation mechanism includes an adjusting bolt (9) and threaded through holes provided on the first fixing seat and the second fixing seat, wherein the adjusting bolt matches the threaded through hole, one end of the adjusting bolt connected to the first fixing seat passes through the threaded through hole and is movably connected to the first arc-shaped protective baffle, and one end of the adjusting bolt connected to the second fixing seat passes through the threaded through hole and is movably connected to the second arc-shaped protective baffle.

4. The welding tool for subway track construction according to claim 1, characterized in that: Three telescopic rod assemblies are respectively arranged between the first fixed seat and the first curved protective baffle and between the second fixed seat and the second curved protective baffle. The telescopic rod assembly includes an outer cylinder, a transition cylinder and an inner cylinder. One end of the outer cylinder is fixed to the first fixed seat or the second fixed seat, one end of the transition cylinder extends into the other end of the outer cylinder and is movably connected to the outer cylinder through the first guide block. One end of the inner cylinder extends into the other end of the transition cylinder and is movably connected to the transition cylinder through the second guide block. The other end of the transition cylinder is rotatably connected to the first curved protective baffle or the second curved protective baffle. One of the three telescopic rod assemblies is facing the threaded through hole, and one end of the adjusting bolt passes through the outer cylinder and the transition cylinder in sequence and is connected to the inner wall of the inner cylinder through the fixed block. The first guide block and the second guide block are both cylindrical, and the centers of the first guide block and the second guide block are each provided with a through hole for the adjusting bolt to pass through. The outer diameter of the first guide block matches the inner diameter of the outer cylinder, and the outer diameter of the second guide block matches the inner diameter of the transition cylinder.

5. The welding tool for subway track construction according to claim 4, characterized in that: A first limit cover is installed on the end where the outer cylinder is connected to the transition cylinder, and the first guide block is restricted in the outer cylinder by the first limit cover. A second limit cover is installed on the end where the transition cylinder is connected to the inner cylinder, and the second guide block is restricted in the transition cylinder by the second limit cover.

6. The welding tool for subway track construction according to claim 1, characterized in that: Two clamping threaded holes are respectively provided on the front and rear ends of the left side of the first fixing seat and the front and rear ends of the right side of the second fixing seat. The clamping threaded holes on the same side are arranged in a straight line and each is connected with a clamping bolt (3). One end of the clamping bolt passes through the clamping threaded hole and is connected to the clamping plate. The first fixing seat and the second fixing seat are clamped and fixed to the subway track through the clamping plates on the inner walls on both sides.

7. The welding tool for subway track construction according to claim 1, characterized in that: The welding guide seat is semicircular and has a first through groove thereon. The inner walls of both sides of the first through groove are provided with first arc grooves. A first movable block (15) is slidably connected in the first arc groove. The first movable block extends out of the welding guide seat and is fixedly connected to the first support plate (13). The first support plate is connected to the first fixed plate (12) through a first spring (14). The first fixed plate is connected to the first gripping rod (11). The first gripping rod passes through the first support plate and the first movable block and is connected to the first mounting block (16). The first gripping rod is movably connected to the first support plate and the first movable block. The first spring surrounds the outer side of the first gripping rod. A welding gun (17) is installed at the end of the first mounting block away from the first gripping rod.

8. The welding tool for subway track construction according to claim 1, characterized in that: The grinding guide seat is semicircular and has a second through groove thereon. Second arc grooves are provided on the inner walls of both sides of the second through groove. A second movable block (23) is slidably connected in the second arc groove. The second movable block extends out of the welding guide seat and is fixedly connected to the second support plate (22). The second support plate is connected to the second fixed plate (19) through a second spring (20). The second fixed plate is connected to the second gripping rod (18). The second gripping rod passes through the second support plate and the second movable block and is connected to the second mounting block (21). The second gripping rod is movably connected to the second support plate and the second movable block. The second spring surrounds the outer side of the second gripping rod. A grinding machine head (24) is installed at the end of the second mounting block away from the second gripping rod.

9. The welding tool for subway track construction according to claim 1, characterized in that: A positioning support column (10) is provided at the left end of the grinding guide seat, and a positioning support hole is provided at the right end of the welding guide seat relative to the positioning support column.

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