Steel lining girth welding tooling and steel lining girth equipment

Abstract

The utility model relates to the technical field of steel lining splicing ring, especially to a steel lining splicing ring welding tool and steel lining splicing ring equipment, the steel lining splicing ring welding tool includes butt joint platform, input mechanism, adjusting mechanism and welding mechanism, butt joint platform can walk along the steel rail in the tunnel, and the arc curved surface that is matched with the arc of steel tile is equipped on butt joint platform, input mechanism sets up in the first end of butt joint platform along the length direction, and input mechanism can drive steel tile and move along the arc curved surface and butt joint with the last steel tile of butt joint platform, adjusting mechanism sets up on butt joint platform, and adjusting mechanism can align two steel tiles, welding mechanism sets up on butt joint platform, and welding mechanism is used for welding two steel tiles, the utility model discloses can improve the butt joint precision of steel tile through the cooperation of input mechanism and adjusting mechanism, and then improves the ring precision of steel tile, and simple procedure realizes the automation operation of steel lining splicing ring, and effectively improves the operation efficiency.

Description

Technical Field

[0001] This utility model relates to the field of steel lining splicing ring technology, and in particular to a steel lining splicing ring welding fixture and steel lining splicing ring equipment. Background Technology

[0002] Currently, there are very few devices on the market that can automate the entire process of steel lining sealing layer construction. Generally, the assembly, joining, and welding of steel roof tiles are mainly completed manually with the help of scaffolding, anchors, hydraulic jacks, electric hoists, winches, and other auxiliary tools. This results in low construction efficiency and a long construction cycle. A few companies have begun developing equipment for steel lining sealing layer construction, but most of these are single-function and have low levels of automation. Similar to steel lining sealing layer construction equipment are pressure steel pipe construction equipment in the water conservancy and hydropower industry, for which patents and products already address issues related to the assembly, joining, and welding of pressure steel pipes.

[0003] Patent CN114393361A discloses an assembly trolley for on-site welding of hydraulic and electrical pressure steel pipes, belonging to the field of steel pipe welding technology, to solve the problem of low welding efficiency of hydraulic and electrical pressure steel pipes. It includes a circle-fixing component and several connecting rods. One end of each connecting rod is equipped with an adjustment component. The circle-fixing component includes two first trolley rings, with several circumferentially distributed first connecting plates fixed between the two first trolley rings. A first adjusting screw is screwed onto each first connecting plate. A first pressure plate is fixed to the lower end of the first adjusting screw, and a first rotating block is fixed to the upper end of the first adjusting screw. A first pressing rod is fixed above the first rotating block. One side of one of the first trolley rings is fixed to the other end of the connecting rods, and several moving components are provided on the connecting rods. This invention, through the cooperation of the circle-fixing component and the adjustment component, can adjust the joint of two steel pipe sections, facilitating steel pipe welding and improving the welding efficiency of hydraulic and electrical pressure steel pipes.

[0004] Utility model patent CN215617933U discloses a multi-functional assembly platform for large-diameter pressure steel pipes. This platform significantly improves the efficiency of pressure steel pipe assembly, welding, and rounding, avoiding the need for continuous installation and dismantling of temporary support platforms during the assembly and welding process. Since pressure steel pipe assembly, welding, and rounding are repetitive and continuous tasks, the assembly platform enhances installation stability and improves construction quality. The assembly structure includes several manned platforms where operators assemble and weld the pressure steel pipes. A rounding device is mounted on the manned platform for effective rounding of the pressure steel pipes. This utility model features a simple assembly structure, requires only a single material, is easy and quick to manufacture, and is highly operable and practical, effectively ensuring the efficiency of pressure steel pipe assembly, welding, and rounding, thereby reducing installation costs.

[0005] Although the aforementioned construction equipment can solve problems related to the assembly, alignment, rounding, and welding of pressure steel pipes in tunnels, they all suffer from single functional structures and low levels of intelligence, and cannot completely solve the problem of fully automated construction of pressure steel pipes or steel linings in tunnels.

[0006] Therefore, it is necessary to provide a new welding fixture for steel-lined splicing rings to solve the above-mentioned technical problems. Utility Model Content

[0007] The main purpose of this utility model is to provide a steel-lined ring welding fixture and steel-lined ring assembly equipment, which aims to solve the problems of existing construction equipment having single functions and low level of intelligence.

[0008] To achieve the above objectives, this utility model proposes a steel-lined ring welding fixture for welding multiple steel tiles into a ring. The fixture includes a docking platform, an input mechanism, an adjustment mechanism, and a welding mechanism. The docking platform can travel along the steel rails inside the tunnel and has an arc-shaped surface matching the curvature of the steel tiles. The input mechanism is located at the first end of the docking platform along its length and can move the steel tiles along the arc-shaped surface to dock with the previous steel tile on the docking platform. The adjustment mechanism is located on the docking platform and can align two adjacent steel tiles. The welding mechanism is located on the docking platform and is used to weld two adjacent steel tiles.

[0009] Optionally, the input mechanism includes a first driving member, a first roller, a second driving member, a transmission member, and a second roller. The first driving member is disposed on the docking platform. The first roller is rotatably disposed on the docking platform along its width direction and is connected to the output shaft of the first driving member. The second driving member is disposed on the docking platform. A transmission member is provided at each end of the docking platform along its width direction, and the transmission member is tractively connected to the docking platform. The second roller is detachably rotatably connected between the two transmission members. One of the transmission members is connected to the output shaft of the second driving member, and the second driving member can drive the second roller to rotate around the output shaft of the second driving member to move closer to or away from the first roller through the transmission member. The second roller can cooperate with the first roller to clamp the steel tile.

[0010] Optionally, the input mechanism includes a gear and an arc-shaped rack, the gear being connected to the output shaft of the second drive member, the arc-shaped rack being disposed on the transmission member, and the gear meshing with the arc-shaped rack.

[0011] Optionally, the adjustment mechanism includes an adjustment drive, a push plate, and a baffle. The adjustment drive is disposed on the docking platform. The push plate is disposed along the length direction of the docking platform and is connected to the output shaft of the adjustment drive. The baffle is disposed opposite to the push plate on both sides of the docking platform in the width direction. The adjustment drive can push the steel tile to move along the width direction of the docking platform through the push plate so that the side of the steel tile away from the push plate abuts against the baffle.

[0012] Optionally, the number of adjustment mechanisms is two, and the two adjustment mechanisms are symmetrically arranged along the width direction of the docking platform.

[0013] Optionally, the docking platform has a welding groove at its centerline along the width direction; the welding mechanism includes a welding track, a welding robot, and two welding pressure rollers. The welding track is disposed on the docking platform and corresponds to the welding groove; the welding robot is slidably disposed on the welding track and is used to identify the weld position and weld two adjacent steel tiles; the two welding pressure rollers are disposed opposite each other on both sides of the welding groove and are used to press the steel tiles tightly onto the docking platform.

[0014] Optionally, the welding roller includes a roller drive, a connecting rod, and a roller body. The roller drive is disposed on the docking platform. The first end of the roller body is rotatably connected to the docking platform via a connecting rod. The second end of the roller body is connected to the output shaft of the roller drive via another connecting rod. The roller drive can drive the roller body to lift or lower via the connecting rod to move away from or press against the steel tile.

[0015] Optionally, the pressure roller body is provided with a protrusion along the length direction of the pressure roller body, the protrusion being used to abut against the steel tile.

[0016] Optionally, the docking platform includes a base plate, an arc-shaped support seat, a driving component, and a wheel assembly. The base plate has lifting lugs at both ends along its length for docking with external equipment. The arc-shaped support seat is disposed on the base plate and has an arc-shaped surface and a welding groove. The driving component is disposed on the base plate. The wheel assembly is disposed at the bottom of the base plate and is connected to the output shaft of the driving component. The driving component can drive the wheel assembly to move along the rails inside the tunnel.

[0017] In addition, this utility model also provides a steel-lined ring splicing device, including a ring splicing trolley and a steel-lined ring splicing welding fixture as described above. The ring splicing trolley includes a trolley body, a rotary drive mechanism, and a plurality of magnetic grippers evenly arranged along the circumference of the trolley body. The rotary drive mechanism is disposed on the trolley body and can drive each of the magnetic grippers to rotate around the center of the trolley body. The magnetic grippers are used to attract the steel tiles on the steel-lined ring splicing welding fixture and drive the welded steel tiles to move along the arc-shaped surface.

[0018] In this utility model, the input mechanism can move the steel tile along the arc surface to align with the previous steel tile, and the adjustment mechanism can align two adjacent steel tiles. After alignment, the welding mechanism welds the gap between the two steel tiles, which helps to improve the docking accuracy of the steel tiles and thus improve the ring forming accuracy of the steel tiles. The process is simple, realizes the automated operation of steel lining ring splicing, and effectively improves the work efficiency. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of the steel-lined splicing ring welding fixture in an embodiment of the present invention; Figure 2 This is a partial structural schematic diagram of the steel-lined splicing ring welding fixture in an embodiment of this utility model; Figure 3 This is a schematic diagram of the operation of the steel-lined splicing ring welding fixture in the embodiments of this utility model; Figure 4 This is a front view of the steel-lined splicing ring welding fixture in an embodiment of this utility model.

[0021] Explanation of icon numbers: 1. Docking Platform, 1.1 Base Plate, 1.2 Arc-shaped Support Base, 1.2.1 Arc-shaped Surface, 1.3 Walking Drive Component, 1.4 Walking Wheel Assembly, 2. Input Mechanism, 2.1 First Drive Component, 2.2 First Roller, 2.3 Second Drive Component, 2.4 Transmission Component, 2.5 Second Roller, 2.6 Gear, 2.7 Arc-shaped Rack, 3. Adjustment Mechanism, 3. Adjustment Assembly, 3.1 Adjustment Drive Component, 3.2 Push Plate, 3.3 Baffle, 4. Welding Mechanism, 4.1 Welding Track, 4.2 Welding Robot, 4.3 Welding Pressure Roller, 4.3 Pressure Roller Drive Component, 4.3.2 Connecting Rod, 4.3.3 Pressure Roller Body, 5. Steel Sheet.

[0022] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in this utility model embodiment are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0025] Furthermore, in this utility model, the use of terms such as "first," "second," etc., is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0026] In this utility model, unless otherwise explicitly specified and limited, the terms "connection," "fixing," etc., should be interpreted broadly. For example, "fixing" can mean a fixed connection, a detachable connection, or an integral part; it can mean a mechanical connection or an electrical connection; it can mean a direct connection or an indirect connection through an intermediate medium; it can mean the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0027] Furthermore, the technical solutions of the various embodiments of this utility model can be combined with each other, but only if they are based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0028] This utility model proposes a steel lining ring welding fixture and steel lining ring assembly equipment, aiming to solve the problems of single function and low operation efficiency of existing construction equipment.

[0029] like Figures 1 to 4 As shown, this embodiment provides a steel lining ring welding fixture for welding multiple steel tiles 5 into a ring. The steel lining ring welding fixture includes a docking platform 1, an input mechanism 2, an adjustment mechanism 3, and a welding mechanism 4. The docking platform 1 can travel along the steel rail in the tunnel. The docking platform 1 is provided with an arc-shaped surface 1.2.1 that matches the curvature of the steel tile 5. The input mechanism 2 is located at the first end of the docking platform 1 along its length direction. The input mechanism 2 can drive the steel tile 5 to move along the arc-shaped surface 1.2.1 to dock with the previous steel tile 5 on the docking platform 1. The adjustment mechanism 3 is located on the docking platform 1 and can align two adjacent steel tiles 5. The welding mechanism 4 is located on the docking platform 1 and is used to weld two adjacent steel tiles 5. In this embodiment, the input mechanism 2 can move the steel tile 5 along the arc surface 1.2.1 to align with the previous steel tile 5, and the adjustment mechanism 3 can align two adjacent steel tiles 5. After alignment, the welding mechanism 4 welds the gap between the two steel tiles 5, which helps to improve the docking accuracy of the steel tiles 5, thereby improving the ring forming accuracy of the steel tiles 5. The process is simple, realizing the automated operation of steel lining ring splicing, and effectively improving the work efficiency.

[0030] The input mechanism 2 includes a first driving component 2.1, a first roller 2.2, a second driving component 2.3, a transmission component 2.4, and a second roller 2.5. The first driving component 2.1 is mounted on the docking platform 1. The first roller 2.2 is rotatably mounted on the docking platform 1 along its width direction and is connected to the output shaft of the first driving component 2.1. The second driving component 2.3 is mounted on the docking platform 1. A transmission component 2.4 is provided at each end of the docking platform 1 along its width direction, and the transmission component 2.4 is connected to the docking platform 1. The second roller 2.5 is detachably rotatably connected between the two transmission components 2.4. One transmission component 2.4 is connected to the output shaft of the second driving component 2.3. The second driving component 2.3 can drive the second roller 2.5 to rotate around the output shaft of the second driving component 2.3 through the transmission component 2.4 to move closer to or away from the first roller 2.2. The second roller 2.5 can cooperate with the first roller 2.2 to clamp the steel tile 5. When the steel tile 5 is placed on the first roller 2.2, the second drive member 2.3 drives the second roller 2.5 to rotate around the output shaft of the second drive member 2.3 to approach the first roller 2.2 and clamp the steel tile 5 with the first roller 2.2. Then, the first drive member 2.1 is started to drive the first roller 2.2 to rotate around the central axis of the first roller 2.2, so that the steel tile 5 moves along the length direction of the docking platform 1 under the action of friction to dock with the previous steel tile 5. After the two steel tiles 5 on the docking platform 1 are aligned by the adjustment mechanism 3, they are welded by the welding mechanism 4. After welding, the second drive member 2.3 drives the second roller 2.5 away from the first roller 2.2. The steel tile 5 moves along the arc surface 1.2.1 to the position of the previous steel tile 5 under the action of the ring assembly trolley. The above operation is repeated to assemble the next steel tile 5 until it is welded into a ring. The input mechanism 2 enables the input of steel tile 5 and its docking with the previous steel tile 5. After welding, it can move the second roller 2.5 away from the first roller so that the two welded steel tiles 5 can be moved under the action of the ring-assembly trolley to facilitate the welding of the next steel tile 5, thus realizing assembly line operation and improving work efficiency. In this embodiment, the second roller 2.5 is detachably connected to the transmission component 2.4, which facilitates the removal of the tooling after the steel tiles 5 are assembled into a ring.

[0031] Specifically, the input mechanism 2 includes a gear 2.6 and an arc-shaped rack 2.7. The gear 2.6 is connected to the output shaft of the second drive member 2.3, and the arc-shaped rack 2.7 is mounted on the transmission member 2.4, with the gear 2.6 meshing with the arc-shaped rack 2.7. The second drive member 2.3 drives the gear 2.6 to rotate, and the gear 2.6, through its meshing with the arc-shaped rack 2.7, drives the transmission member 2.4, which is connected to the arc-shaped rack 2.7, to rotate relative to the docking platform 1. This, in turn, causes the second roller 2.5 to move closer to or further away from the first roller 2.2, facilitating the input of the steel tile 5 and its displacement after welding.

[0032] Furthermore, the adjustment mechanism 3 includes two adjustment components 3 symmetrically arranged along the width direction of the docking platform 1. The adjustment components 3 include an adjustment drive 3.1, a push plate 3.2, and a baffle 3.3. The adjustment drive 3.1 is disposed on the docking platform 1, the push plate 3.2 is disposed along the length direction of the docking platform 1, and the push plate 3.2 is connected to the output shaft of the adjustment drive 3.1. The baffle 3.3 is disposed opposite to the push plate 3.2 on both sides of the docking platform 1 in the width direction. The adjustment drive 3.1 can push the steel tile 5 to move along the width direction of the docking platform 1 through the push plate 3.2 so that the side of the steel tile 5 away from the push plate 3.2 abuts against the baffle 3.3. The two adjustment components 3 can adjust the two steel tiles 5 on the curved surface 1.2.1 respectively. The adjustment drive component 3.1 pushes the corresponding steel tile 5 along the width direction of the docking platform 1 through the push plate 3.2 so that the two steel tiles 5 abut against the baffle 3.3 respectively, thereby realizing the alignment of the two steel tiles 5 and effectively improving the docking accuracy between the steel tiles 5.

[0033] Furthermore, the docking platform 1 has a welding groove along its centerline in the width direction; the welding mechanism 4 includes a welding track 4.1, a welding robot 4.2, and two welding pressure rollers 4.3. The welding track 4.1 is set on the docking platform 1 and corresponds to the welding groove; the welding robot 4.2 is slidably set on the welding track 4.1 to identify the weld position and weld two adjacent steel tiles 5; the two welding pressure rollers 4.3 are arranged opposite each other on both sides of the welding groove, and are used to press the steel tiles 5 tightly onto the docking platform 1. The welding track 4.1 is in the form of a gantry, and is detachably connected to the docking platform 1, facilitating the removal of the tooling after the steel tiles 5 are assembled into a ring. In actual operation, the following steps are included: 1. First, place the first steel tile 5 on the right side of the docking platform 1, and then suspend the left end of the steel tile 5 above the welding groove in the middle of the docking platform 1. 2. Adjust the position of the first steel tile 5 by adjusting mechanism 3, and then fix the left end of the first steel tile 5 with the right welding roller; 3. The input mechanism 2 inputs the second steel tile 5 into the left side of the docking platform 1. After the second steel tile 5 is clamped by the second roller 2.5 and the first roller 2.2, it is driven by the first driving component 2.1 to transfer the second steel tile 5 to fit with the first steel tile 5. 4. After the steel tile 5 is attached, the second steel tile 5 is aligned with the first steel tile 5 by adjusting the left adjustment mechanism 3 longitudinally. 5. After the second steel tile 5 is adjusted into place, the second steel tile 5 is pressed down by the left welding pressure roller so that the two steel tiles 5 are aligned vertically. 6. Welding robot 4.2 identifies the weld position and begins welding. Welding robot 4.2 starts welding the weld from the arc-starting plate and exits from the arc-retreating plate. 7. Finally, the second driving component 2.3 drives the second roller 2.5 to lift up, and the welding pressure roller 4.3 is lifted away from the steel tile 5. The welded steel tile 5 rotates so that the left end of the second steel tile 5 is above the groove of the docking platform 1, and the next steel tile 5 enters from the left side. Repeat 3-7 until the steel tiles 5 form a ring.

[0034] In this embodiment, the longitudinal alignment of the steel tile 5 is achieved through the adjustment mechanism 3, and the vertical alignment of the dry tile is achieved through the welding pressure roller 4.3. This effectively reduces the vertical and longitudinal misalignment of the steel tile 5, ensuring the docking accuracy of the steel tiles. Furthermore, the ease of adjustment improves work efficiency. This embodiment can achieve longitudinal seam welding of steel tile 5 with a docking accuracy ≤1mm, a vertical misalignment accuracy ≤1mm, and a longitudinal misalignment accuracy ≤2mm.

[0035] In this embodiment, the welding pressure roller 4.3 includes a pressure roller drive component 4.3, a connecting rod 4.3.2, and a pressure roller body 4.3.3. The pressure roller drive component 4.3 is mounted on the docking platform 1. The first end of the pressure roller body 4.3.3 is rotatably connected to the docking platform 1 via a connecting rod 4.3.2, and the second end of the pressure roller body 4.3.3 is connected to the output shaft of the pressure roller drive component 4.3 via another connecting rod 4.3.2. The pressure roller drive component 4.3 can drive the pressure roller body 4.3.3 to lift or lower away from or press against the steel tile 5 via the connecting rod 4.3.2. The pressure roller drive component 4.3 can drive the pressure roller body 4.3.3 to lift away from or lower to press against the steel tile 5, thereby achieving automatic pressing of the steel tile 5 to improve welding quality.

[0036] In addition, the pressure roller body 4.3.3 is provided with a protruding strip along the length of the pressure roller body 4.3.3, which is used to abut against the steel tile 5. The pressure roller body 4.3.3 presses the steel tile 5 with the protruding strip to maximize the proximity of the pressure position to the weld, reduce the vertical misalignment of the two steel tiles 5, and improve the docking accuracy. In this embodiment, the pressure roller body and the connecting rod 4.3.2 are detachably connected, which facilitates the removal of the tooling after the steel tiles 5 are assembled into a ring.

[0037] In this embodiment, the docking platform 1 includes a base plate 1.1, an arc-shaped support seat 1.2, a driving component 1.3, and a wheel assembly 1.4. The base plate 1.1 has lifting lugs at both ends along its length for docking with external equipment. The arc-shaped support seat 1.2 is mounted on the base plate 1.1 and has an arc-shaped curved surface 1.2.1 and a welding groove. The driving component 1.3 is mounted on the base plate 1.1. The wheel assembly 1.4 is located at the bottom of the base plate 1.1 and is connected to the output shaft of the driving component 1.3. The driving component 1.3 can drive the wheel assembly 1.4 to move along the steel rails inside the tunnel. The diameter of the arc-shaped curved surface 1.2.1 is adapted to the diameter of the steel tile 5 interlocking ring. The docking platform 1 has lifting lugs on both sides, allowing it to be hoisted onto a trolley and moved forward with the trolley, facilitating position adjustment within the tunnel. The weld seam between the two steel tiles 5 corresponds to the welding groove, and a copper gasket or other welding pad is placed inside the welding groove.

[0038] This embodiment also provides a steel lining ring splicing device, including a ring splicing trolley and the steel lining ring splicing welding fixture as described above. The ring splicing trolley includes a trolley body, a rotary drive mechanism, and multiple magnetic grippers evenly arranged along the circumference of the trolley body. The rotary drive mechanism is located on the trolley body and can drive each magnetic gripper to rotate around the center of the trolley body. The magnetic grippers are used to attract the steel tiles 5 on the steel lining ring splicing welding fixture and drive the welded steel tiles 5 to move along the arc-shaped curved surface 1.2.1.

[0039] In this embodiment, the steel-lined ring splicing equipment also includes a controller, which is electrically connected to the rotary drive mechanism, the magnetic gripper, and the input mechanism. The operator can control the operation of the rotary drive mechanism, the magnetic gripper, and the input mechanism through the controller.

[0040] Since the steel lining ring splicing equipment includes the steel lining ring welding fixtures described above, it possesses all the beneficial effects of the aforementioned steel lining ring welding fixtures, which will not be elaborated upon here.

[0041] The above description is only a preferred embodiment of the present utility model and does not limit the patent scope of the present utility model. All equivalent structural transformations made under the inventive concept of the present utility model using the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present utility model.

Claims

1. A steel-lined ring welding fixture for welding multiple steel tiles (5) into a ring, characterized in that, The steel lining splicing ring welding fixture includes a docking platform (1), an input mechanism (2), an adjustment mechanism (3), and a welding mechanism (4). The docking platform (1) can travel along the steel rail in the tunnel. The docking platform (1) is provided with an arc-shaped surface (1.2.1) that matches the curvature of the steel tile (5). The input mechanism (2) is located at the first end of the docking platform (1) along the length direction. The input mechanism (2) can drive the steel tile (5) to move along the arc-shaped surface (1.2.1) to dock with the previous steel tile (5) on the docking platform (1). The adjustment mechanism (3) is located on the docking platform (1). The adjustment mechanism (3) can align two adjacent steel tiles (5). The welding mechanism (4) is located on the docking platform (1). The welding mechanism (4) is used to weld two adjacent steel tiles (5).

2. The steel-lined splice ring welding fixture as described in claim 1, characterized in that, The input mechanism (2) includes a first driving member (2.1), a first roller (2.2), a second driving member (2.3), a transmission member (2.4), and a second roller (2.5). The first driving member (2.1) is disposed on the docking platform (1). The first roller (2.2) is rotatably disposed on the docking platform (1) along the width direction of the docking platform (1), and the first roller (2.2) is connected to the output shaft of the first driving member (2.1). The second driving member (2.3) is disposed on the docking platform (1). The docking platform (1) has a transmission member at each end along the width direction. The moving part (2.4) is connected to the docking platform (1) in a transmission connection; the second roller (2.5) is detachably rotatably connected between the two moving parts (2.4); one of the moving parts (2.4) is connected to the output shaft of the second driving part (2.3), and the second driving part (2.3) can drive the second roller (2.5) to rotate around the output shaft of the second driving part (2.3) through the moving part (2.4) to move closer to or away from the first roller (2.2), and the second roller (2.5) can cooperate with the first roller (2.2) to clamp the steel tile (5).

3. The steel-lined splice ring welding fixture as described in claim 2, characterized in that, The input mechanism (2) includes a gear (2.6) and an arc rack (2.7). The gear (2.6) is connected to the output shaft of the second drive member (2.3). The arc rack (2.7) is disposed on the transmission member (2.4), and the gear (2.6) meshes with the arc rack (2.7).

4. The steel-lined splice ring welding fixture as described in claim 3, characterized in that, The adjustment mechanism (3) includes an adjustment drive (3.1), a push plate (3.2), and a baffle (3.3). The adjustment drive (3.1) is disposed on the docking platform (1). The push plate (3.2) is disposed along the length direction of the docking platform (1) and is connected to the output shaft of the adjustment drive (3.1). The baffle (3.3) is disposed opposite to the push plate (3.2) on both sides of the width direction of the docking platform (1). The adjustment drive (3.1) can push the steel tile (5) to move along the width direction of the docking platform (1) through the push plate (3.2) so that the side of the steel tile (5) away from the push plate (3.2) abuts against the baffle (3.3).

5. The steel-lined splice ring welding fixture as described in claim 4, characterized in that, The number of adjustment mechanisms (3) is two, and the two adjustment mechanisms (3) are symmetrically arranged along the width direction of the docking platform (1).

6. The steel-lined splice ring welding fixture as described in any one of claims 1 to 5, characterized in that, The docking platform (1) has a welding groove at the centerline along the width direction; the welding mechanism (4) includes a welding track (4.1), a welding robot (4.2) and two welding pressure rollers (4.3). The welding track (4.1) is set on the docking platform (1) and is corresponding to the welding groove; the welding robot (4.2) is slidably set on the welding track (4.1) and is used to identify the weld position and weld two adjacent steel tiles (5); the two welding pressure rollers (4.3) are arranged opposite to each other on both sides of the welding groove and are used to press the steel tiles (5) onto the docking platform (1).

7. The steel-lined splice ring welding fixture as described in claim 6, characterized in that, The welding pressure roller (4.3) includes a pressure roller drive (4.3), a connecting rod (4.3.2), and a pressure roller body (4.3.3). The pressure roller drive (4.3) is disposed on the docking platform (1). The first end of the pressure roller body (4.3.3) is rotatably connected to the docking platform (1) through one of the connecting rods (4.3.2). The second end of the pressure roller body (4.3.3) is connected to the output shaft of the pressure roller drive (4.3) through another connecting rod (4.3.2). The pressure roller drive (4.3) can drive the pressure roller body (4.3.3) to lift or lower away from or press against the steel tile (5) through the connecting rod (4.3.2).

8. The steel-lined splice ring welding fixture as described in claim 7, characterized in that, The pressure roller body (4.3.3) is provided with a protrusion along the length of the pressure roller body (4.3.3), and the protrusion is used to abut against the steel tile (5).

9. The steel-lined splice ring welding fixture as described in claim 8, characterized in that, The docking platform (1) includes a base plate (1.1), an arc-shaped support seat (1.2), a walking drive component (1.3), and a walking wheel assembly (1.4). The base plate (1.1) has lifting lugs at both ends along its length for docking with external equipment. The arc-shaped support seat (1.2) is disposed on the base plate (1.1) and has an arc-shaped curved surface (1.2.1) and a welding groove. The walking drive component (1.3) is disposed on the base plate (1.1). The walking wheel assembly (1.4) is disposed at the bottom of the base plate (1.1) and is connected to the output shaft of the walking drive component (1.3). The walking drive component (1.3) can drive the walking wheel assembly (1.4) to travel along the rails in the tunnel.

10. A steel-lined ring splicing device, characterized in that, The assembly includes a ring-assembly trolley and a steel-lined ring-assembly welding fixture as described in any one of claims 1 to 8. The ring-assembly trolley includes a trolley body, a rotary drive mechanism, and a plurality of magnetic grippers evenly arranged along the circumference of the trolley body. The rotary drive mechanism is disposed on the trolley body and can drive each of the magnetic grippers to rotate around the center of the trolley body. The magnetic grippers are used to attract the steel tiles (5) on the steel-lined ring-assembly welding fixture and drive the welded steel tiles (5) to move along the arc-shaped surface (1.2.1).

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