Tunnel arch skeleton welding device with slag collecting structure

Abstract

The application discloses a tunnel arch skeleton welding device with a welding slag collecting structure, which comprises a base, a sliding rail one is symmetrically fixed on the top of the base through bolts, a track trolley is slidably connected in the sliding rail one, and a folding lifting assembly is installed on the top of the track trolley; the application realizes efficient welding and welding slag recovery through a precise positioning assembly and an integrated welding slag collecting groove, improves the welding quality of the tunnel arch skeleton, and simultaneously adopts an automatic double-side welding mechanism to realize online straight pushing rotation of the welding skeleton according to the limited space of the tunnel, regular angle rotation of a positioning box controlled by an upper transmission assembly, arc-shaped positioning plate and clamping arm closed clamping during secondary rotation, automatic locking of the tunnel arch skeleton on the positioning box through a cover controlled by a transmission assembly, and improvement of the stability of the overall welding skeleton.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of tunnel arch skeleton welding, in particular to a tunnel arch skeleton welding device with welding slag collecting structure. BACKGROUND

[0002] The tunnel arch skeleton is an important component for supporting and reinforcing the tunnel structure in tunnel construction, which can effectively disperse the rock-soil pressure from above the tunnel and various loads generated during the use of the tunnel, reduce local stress concentration, ensure the stability of the tunnel structure, prevent collapse, and at the same time, constrain the surrounding rock, limit the excessive deformation of the surrounding rock, especially in soft surrounding rock sections, quickly control the continuous relaxation and expansion of the plastic zone of the surrounding rock, ensure the stability of the tunnel support structure system, and provide support and fixing points for other operations in the tunnel construction process, such as spraying concrete, installing anchor rods and steel mesh, etc., which together with these support measures form a stable support system.

[0003] Generally, the tunnel arch skeleton is processed from I-beams, channel steels, H-shaped steels, etc., according to the tunnel design drawings, the large sample of the arch support is laid out in the processing site to determine the size and shape of each part, and then the steel or steel bar is bent into the required arc shape using a steel bending machine and other equipment, for the steel arch, the bending radius and arc of the steel should be controlled during the bending process to ensure the size accuracy and smooth arc of each arch section, and the bent arch sections are welded or bolted to assemble, due to the limited welding area of the tunnel, the tunnel arch skeleton is split and welded independently by using the pre-feeding method, and the arch structure is turned over with a hoisting mechanism during the welding process to facilitate the welding of the two side connecting positions, therefore, there is an urgent need for a welding device that can independently weld both sides and cope with the limited space of the tunnel.

[0004] Therefore, we propose a tunnel arch skeleton welding device with welding slag collecting structure. SUMMARY

[0005] The purpose of the present application is to provide a tunnel arch skeleton welding device with welding slag collecting structure to solve the problems raised in the background.

[0006] To achieve the above purpose, the present application provides the following technical solution: a tunnel arch skeleton welding device with welding slag collecting structure, comprising a base, the top of the base is symmetrically fixed with a slide rail one through bolts, the slide rail one is connected with a track trolley inside, the top of the track trolley is installed with a folding lifting assembly, the top of the folding lifting assembly on both sides is installed with a horizontal plate, the bottom of the horizontal plate is connected with a turning welding mechanism through sliding connection.

[0007] The top of the base is fixed with slide rail two through bolts, the center side of the slide rail two is provided with a residue groove, the slide rail two is symmetrically installed with a sliding lifting assembly, the sliding lifting assembly is movably connected with a placing plate, the placing plate is movably connected with a rotating disc, the rotating disc is fixed with a positioning box through bolts, the outer wall of the positioning box is symmetrically movably connected with a clamping arm and a cover, the positioning box is movably connected with an arc-shaped positioning plate at the bottom of the cover.

[0008] Further, the turning and welding mechanism comprises a sliding table, a gas cylinder, a motor and a placing shaft, the bottom of the horizontal plate is movably connected with the sliding table, the bottom of the sliding table is uniformly fixed with the gas cylinder through bolts, the end of the gas cylinder is fixedly connected with a lock ring, the bottom of the sliding table is fixedly connected with the motor, the output end of the motor is movably connected with the placing shaft, the end of the placing shaft is fixedly connected with an L-shaped rod, the L-shaped rod is fixed with a laser welder through bolts, one end of the L-shaped rod is clamped with the inner wall of the lock ring.

[0009] Further, the folding lifting assembly comprises a folding frame and an electric push rod, and the electric push rod is installed on the folding rod, the sliding lifting assembly comprises a sliding support rod and a rotating arm, and the rotating arm rotates in cooperation with the electric push rod.

[0010] Further, one side of the placing plate is fixed with a transmission assembly through bolts, the transmission assembly comprises two independent drive units, and a single drive unit is used for placing plate side rotating disc rotation control.

[0011] Further, the inner wall of the positioning box is movably connected with a movable tooth, the movable tooth is installed with a transmission tooth, and a single drive unit of the transmission assembly is connected with the transmission tooth.

[0012] Further, the inner wall of the positioning box is movably connected with a sliding rod, the end of the sliding rod penetrates the side through groove of the positioning box and is fixed with the clamping arm, the sliding rods on both sides are meshed with the movable teeth, the positioning box is movably connected with an arc-shaped positioning plate on the side of the sliding rod, one side of the arc-shaped positioning plate is fixed with a rack through bolts, and the rack is meshed with the movable teeth, one side of the arc-shaped positioning plate penetrates the through groove of the positioning box and is movably connected with the positioning box.

[0013] Further, the inner wall of the positioning box and the arc-shaped positioning plate side are symmetrically installed with a cover, and the side of the cover is meshed with the transmission tooth.

[0014] The tunnel arch skeleton welding method with slag collecting structure is:

[0015] According to the self-weight combination forming and clamping welding, the arc-shaped end of the arch skeleton is placed on the arc-shaped positioning plate, and the two side strip skeletons are stored between the clamping arms and the covers and are aligned with the arch skeleton.

[0016] The starting transmission assembly realizes the opposite movement of the cover, cooperates with the sliding lifting assembly to push the one-side lifting of the placement plate, the arched framework relies on its own gravity to press the arc-shaped positioning plate, causes the two clamping arms to move to clamp the synchronous sliding of the strip-shaped framework, and completes the overall assembly and fixation of the tunnel arched framework;

[0017] The control folding lifting assembly moves to the tunnel arched framework connection position, cooperates with the cylinder and the motor to work, the position of the laser welding device is flush with the tunnel arched framework connection position, and one-side welding of the tunnel arched framework is completed.

[0018] 180° rotation and 90° vertical exchange, the tunnel arched framework which is welded on one side is rotated by 180° through the transmission assembly to drive the positioning box, and the two sides of the sliding rail two sliding lifting assemblies are synchronized to rotate the placement plate, finally, the two positioning boxes are placed vertically by 90° on the top of the residue storage groove, the tunnel arched framework is pushed vertically, moves to the other positioning box, cooperates with the 180° rotation of the positioning box in the horizontal angle, and is automatically clamped in the lifting process, and the automatic welding of the other arched framework connection position is started.

[0019] Compared with the prior art, the tunnel arched framework welding device has the beneficial effects that:

[0020] 1、In the tunnel arched framework welding device, through the double positioning boxes and the 180° overturning mechanism, the automatic welding of the tunnel arched framework on both sides is realized, without hoisting and overturning, the efficiency is significantly improved, the clamping arm and the arc-shaped positioning plate are designed to be linked on the positioning box, precise clamping is realized by using the self-weight of the framework, manual intervention is avoided, the full-folding storage welding mechanism is arranged on the base, transportation is facilitated, and the tunnel special space is used;

[0021] 2、In the tunnel arched framework welding device, the welding slag guiding structure during the inclined welding of the residue storage groove and the positioning box is integrated, welding slag is effectively collected, the welding environment is ensured to be clean, the laser welding device cooperates with the steering welding mechanism with multiple degrees of freedom adjustment, complex welding angles are adapted, and the overall welding quality of the tunnel arched framework is improved. DRAWINGS

[0022] Figure 1 It is a structure schematic view of the tunnel arched framework welding device with a welding slag collecting structure of the present application;

[0023] Figure 2 It is a connection schematic view of the sliding lifting assembly and the positioning box on the base of the present application;

[0024] Figure 3 It is a front view schematic view of the tunnel arched framework welding device with a welding slag collecting structure of the present application;

[0025] Figure 4 It is a top view schematic view of the tunnel arched framework welding device with a welding slag collecting structure of the present application;

[0026] Figure 5 For the application Figure 1 The structure of A is enlarged and schematized.

[0027] Figure 6 For the application Positioning box inside slide rod, arc positioning plate and movable tooth meshing connection schematic diagram;

[0028] Figure 7 For the application Cover end and transmission tooth meshing connection schematic diagram on both sides;

[0029] Figure 8 For the application Tunnel arch skeleton turnover welding flow chart.

[0030] In the figure: 1, base; 2, slide rail one; 3, track trolley; 4, folding lifting assembly; 5, cross plate; 6, turning welding mechanism; 601, slide table; 602, air cylinder; 603, motor; 604, placing shaft; 605, L-shaped rod; 606, lock ring; 607, laser welder; 7, slide rail two; 8, sliding lifting assembly; 9, placing plate; 10, transmission assembly; 11, turntable; 12, positioning box; 13, movable tooth; 14, slide rod; 15, clamping arm; 16, arc positioning plate; 17, rack; 18, transmission tooth; 19, cover; 20, residue storage groove. DETAILED DESCRIPTION

[0031] The technical solutions in the embodiments of the application will be described clearly and completely below with reference to the drawings in the embodiments of the application. Obviously, the described embodiments are only part of the embodiments of the application, rather than all the embodiments of the application. Based on the embodiments in the application, all other embodiments obtained by a person of ordinary skill in the art without creative work fall within the protection scope of the application.

[0032] Please refer to Figures 1-8 , the application provides a technical solution:

[0033] Embodiment 1: according to Figure 1 and Figure 2 Understand the whole tunnel arch skeleton welding device, the main part is divided into welding section and fixed clamping section, both of which use telescopic adjusting structure, which is used to adapt to the narrow problem of tunnel welding area, and is convenient for welding on both sides of the tunnel arch skeleton. Compared with the horizontal and vertical turnover of small plate parts, the vertical plate pushing mode is used to alternately weld on both sides of the tunnel arch skeleton, reducing the overall activity amplitude of the tunnel arch skeleton;

[0034] When the tunnel arch skeleton is welded, the assembly and positioning of each section of the arch is first carried out on the positioning box 12, and the sliding lifting assembly 8 installed in the second slide rail 7 is in a closed state, so that the positioning box 12 is horizontally placed on the second slide rail 7, facilitating the installation and positioning of each section of the arch by the operator;

[0035] According to the different structures of each section of the arch, the arc-shaped arch section is first fixed, and the arc-shaped positioning plate 16 is installed outside the side channel of the positioning box 12, and the other side of the arc-shaped positioning plate 16 extends into the positioning box 12 through the channel, as shown in Figure 6 The movable tooth 13 is movably connected to the inner wall of the positioning box 12, the inner side gear 17 of the arc-shaped positioning plate 16 is meshed and connected with the movable tooth 13, and the slide rod 14 is symmetrically and slidably connected to the two sides of the movable tooth 13, and the slide rod 14 is connected and fixed with the clamping arm 15 outside the positioning box 12, in the horizontal state of the positioning box 12, the abutting placement is carried out according to the welding of the arch skeleton and the straight bar skeleton;

[0036] When the entire positioning box 12 is rotated with the sliding lifting assembly 8, the weight of each section of the arch begins to push the arc-shaped positioning plate 16 to slide, accompanied by the downward movement of the arc-shaped positioning plate 16, the rotation of the movable tooth 13 realizes the movement of the two slide rods 14 towards each other, and finally the clamping arm 15 connected to the end of the slide rod 14 extrudes the outer wall of the straight bar arch, and at the same time, the slide rod 14 is slidably connected to the two sides of the movable tooth 13, and the slide rod 14 is connected and fixed with the clamping arm 15 outside the positioning box 12, in the horizontal state of the positioning box 12, the abutting placement is carried out according to the welding of the arch skeleton and the straight bar skeleton;

[0037] In order to prevent the straight bar skeleton from being deviated by the unilateral extrusion of the clamping arm 15, the blocking cover 19 is symmetrically and slidably connected inside the entire positioning box 12, as shown in Figure 7 The two sides of the blocking cover 19 are meshed and connected with the transmission teeth 18 installed on the side of the movable tooth 13, and the transmission teeth 18 are fixed with the transmission assembly 10 installed on the side of the placement plate 9 through the shaft column, and the transmission assembly 10 controls the rotation of the transmission teeth 18, so as to realize the position adjustment of the blocking cover 19 on the side of the positioning box 12, and the straight bar skeleton can be fixed and locked by the two clamping arms 15, and at the same time, the straight bar skeleton can be used to extrude and limit the arch skeleton, and then the welding work can be carried out;

[0038] The track trolley 3 is installed in the two sides of the slide rail one 2 at the top of the entire base 1, and the folding lifting assembly 4 is installed on the track trolley 3, the rotation of the folding rod is realized by the electric push rod, the height adjustment of the horizontal plate 5 installed at the end of the folding rod is completed, and the multi-dimensional welding angle adjustment can be realized by the track trolley 3 and the steering welding mechanism 6 at the bottom of the horizontal plate 5;

[0039] As shown in Figure 5As shown, the whole steering welding mechanism 6 is composed of a sliding table 601, a gas cylinder 602 and a motor 603, the sliding table 601 drives the whole welding assembly to move left and right at the bottom of the cross plate 5, and the two groups of gas cylinders 602 are fixed at the bottom of the sliding table 601, the locking ring 606 is fixed at the end of the gas cylinder 602, and the placing shaft 604 is sleeved on the output end of the motor 603 and is connected with the motor 603 through the motor 603, and the placing shaft 604 is driven to rotate by the motor 603;

[0040] The L-shaped rod 605 is fixedly connected to the end of the placing shaft 604, and the end of the L-shaped rod 605 is clamped with the inner wall of the locking ring 606. When the locking ring 606 is pushed up and down by the gas cylinder 602, the clamped L-shaped rod 605 drives the whole placing shaft 604 to rotate. In addition to the L-shaped rod 605, the placing shaft 604 is also fixedly connected with the laser welder 607, so as to control the angle of the welding gun at the end of the laser welder 607, and cooperate with the rotation of the motor 603 to realize multi-angle adjustment and facilitate the positioning of the box 12. The online welding of each section of the arch support is convenient.

[0041] In order to improve the welding effect of the whole tunnel arch skeleton and perfect the regularity of the welding part, after one-side welding of the tunnel arch skeleton is completed, the other side online welding is also needed. Therefore, the clamp usually has a 180-degree overturning operation. However, due to the limitation of the site, part of the welding table cannot be used for the whole tunnel online welding. Therefore, after one-side welding of the tunnel arch skeleton is completed, the other side welding of the skeleton is carried out by using the straight pushing surface method.

[0042] Therefore, two groups of sliding lifting assemblies 8 are installed on the whole sliding rail 27, and two positioning boxes 12 are provided. When one-side positioning box 12 is used for welding of the tunnel arch skeleton, the pushing force of the sliding lifting assembly 8 is used to gradually control the rotation of the tunnel arch skeleton on one side of the positioning box 12, and the sliding lifting assembly 8 on the other side works synchronously.

[0043] Then the whole tunnel arch skeleton is pushed from one side to the other side, and needs to be separated from the abutting limit of the clamping arm 15 and the cover 19, like Figure 3 As shown, the transmission assembly 10 on the placing plate 9 drives the positioning box 12 connected with the whole rotating disc 11 to rotate. Usually, the positioning box 12 is prevented from sliding during rotation, which has the risk of falling. The positioning box 12 is first controlled to be horizontally placed, and then the transmission assembly 10 drives the positioning box 12 to rotate, so that the straight bar side of the one-side welded tunnel arch skeleton faces downward, and the arc side faces upward. The end of the tunnel arch skeleton is fixed downward, and the positioning box 12 is more stable during lifting and rotating. There is no extrusion of the arc-shaped positioning plate 16 by the weight of the tunnel arch skeleton itself, and the whole clamping arm 15 is separated from the clamping of the two sides of the tunnel arch skeleton.

[0044] When the whole positioning box 12 rotates 90 degrees, the middle of the positioning box 12 vertically placed on both sides has a tunnel arch skeleton, and the tunnel arch skeleton on one side is pushed to the other side of the positioning box 12 by the push rod, and the sliding lifting assembly 8 rotates to reacquire the tunnel arch skeleton placed on the other side;

[0045] When the tunnel arch skeleton is alternated in the positioning box 12 on both sides, the blocking cover 19 is prevented from being blocked, and the transmission assembly 10 controls the movement of the blocking cover 19. The positioning box 12 that acquires the tunnel arch skeleton adopts the same positioning locking mode, vertically rotates to 180 degrees, and then horizontally rotates 180 degrees. When lifted again, the tunnel arch skeleton will contact the arc-shaped positioning plate 16, thereby completing its own locking, cooperating with the turning welding mechanism 6 at the bottom of the horizontal plate 5, starting a new round of welding operation of the tunnel arch skeleton on the other side. Through the double-sided positioning box 12 and the 180-degree turnover mechanism, as shown in Figure 8 , the double-sided automatic welding of the tunnel arch skeleton is realized without lifting and turning, and the welding efficiency is significantly improved.

[0046] In addition, since the tunnel arch skeleton is welded on the positioning box 12, the welding slag splashed during welding is blocked by the blocking cover 19 and falls to the side of the arc-shaped positioning plate 16 at the bottom of the positioning box 12. Most of the welding slag directly enters the positioning box 12 through the through slot, and finally is discharged into the slag storage groove 20 opened on the slide rail 7 through the one-side hole of the positioning box 12, thereby completing the automatic collection of the welding slag.

[0047] The preferred embodiments of the application disclosed above are only used to help explain the application. The preferred embodiments do not describe all the details and do not limit the application to the specific embodiments. Obviously, according to the content of the specification, many modifications and changes can be made. The specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the application, so that those skilled in the art can well understand and utilize the application. The application is limited by the claims and their entire scope and equivalents.

Claims

1. A tunnel arch frame welding device with a slag collection structure, comprising a base (1), characterized in that, The top of the base (1) is symmetrically fixed with a slide rail (2) by bolts. A track trolley (3) is slidably connected inside the slide rail (2). A folding lifting assembly (4) is installed on the top of the track trolley (3). A horizontal plate (5) is installed on the top of the folding lifting assembly (4) on both sides. A steering welding mechanism (6) is slidably connected to the bottom of the horizontal plate (5). The top of the base (1) is fixed with a slide rail 2 (7) by bolts. A slag storage groove (20) is opened on the center side of the slide rail 2 (7). A sliding lifting assembly (8) is symmetrically installed on the slide rail 2 (7). A placement plate (9) is movably connected to the side of the sliding lifting assembly (8). A turntable (11) is movably connected to one side of the placement plate (9). A positioning box (12) is fixed with bolts on the turntable (11). A clamping arm (15) and a baffle (19) are symmetrically slidably connected to the outer wall of the positioning box (12). An arc-shaped positioning plate (16) is slidably connected to the positioning box (12) and located at the bottom of the baffle (19). A transmission assembly (10) is fixed to one side of the placement plate (9) by bolts. The transmission assembly (10) includes two independent drive units. A single drive unit is used for rotation control of the turntable (11) on the side of the placement plate (9). The inner wall of the positioning box (12) is movably connected with a movable tooth (13), and a transmission tooth (18) is installed on the side of the movable tooth (13). A single drive unit on the transmission assembly (10) is connected to the transmission tooth (18). The inner wall of the positioning box (12) is symmetrically connected to a sliding rod (14). The end of the sliding rod (14) passes through the side groove of the positioning box (12) and is fixed to the upper clamping arm (15). The sliding rods (14) on both sides are engaged with the movable teeth (13). An arc-shaped positioning plate (16) is slidably connected inside the positioning box (12) and located on the side of the sliding rod (14). A rack (17) is fixed to one side of the arc-shaped positioning plate (16) by bolts, and the rack (17) is engaged with the movable teeth (13). One side of the arc-shaped positioning plate (16) passes through the upper groove of the positioning box (12) and is slidably connected to the positioning box (12). A baffle (19) is symmetrically installed on the inner wall of the positioning box (12) and on the side of the arc-shaped positioning plate (16). The teeth on the side of the baffle (19) mesh with the transmission teeth (18).

2. The tunnel arch frame welding device with a slag collection structure according to claim 1, characterized in that, The steering welding mechanism (6) includes a slide (601), a cylinder (602), a motor (603), and a placement shaft (604). The bottom of the horizontal plate (5) is slidably connected to the slide (601). The bottom of the slide (601) is evenly fixed with the cylinder (602) by bolts. The end of the cylinder (602) is fixedly connected with a locking ring (606). The bottom of the slide (601) is fixedly connected with the motor (603). The output end of the motor (603) is movably connected with the placement shaft (604). The end of the placement shaft (604) is fixedly connected with an L-shaped rod (605). A laser welder (607) is fixed on the L-shaped rod (605) by bolts. One end of the L-shaped rod (605) is engaged with the inner wall of the locking ring (606).

3. The tunnel arch frame welding device with a slag collection structure according to claim 2, characterized in that, The folding and lifting assembly (4) includes a folding frame and an electric push rod, and the electric push rod is mounted on the folding rod. The sliding lifting assembly (8) includes a sliding support rod and a rotating arm, and the rotating arm rotates in conjunction with the electric push rod.

4. The tunnel arch frame welding device with a slag collection structure according to claim 3, characterized in that, The welding method for the tunnel arch frame with a slag collection structure is as follows: Based on its own counterweight, the frame is assembled and clamped and welded. The arc end of the arch frame is placed on the arc positioning plate (16), and the two side strip frames are placed between the clamping arm (15) and the cover (19) and aligned with the arch frame. The transmission assembly (10) is activated to make the baffle (19) move towards each other. The sliding lifting assembly (8) pushes the placement plate (9) to lift on one side. The arch frame presses down the arc positioning plate (16) by its own weight, causing the clamping arms (15) on both sides to move and clamp the synchronously sliding strip frame, thus completing the overall assembly and fixation of the tunnel arch frame. Control the folding and lifting assembly (4) to move to the tunnel arch frame connection position, and work with the cylinder (602) and motor (603) to align the welding gun position of the laser welder (607) with the tunnel arch frame connection position, and complete the single-sided welding of the tunnel arch frame. The tunnel arch frame, which has been welded on one side, is rotated 180° and 90° vertically. The transmission component (10) drives the positioning box (12) to rotate 180° on the horizontal side. At the same time, the sliding lifting components (8) on both sides of the slide rail (7) rotate the placement plate (9) synchronously. Finally, the positioning boxes (12) on both sides are placed vertically at 90° on the top of the slag storage tank (20). With the vertical push of the tunnel arch frame, it moves to the positioning box (12) on the other side and cooperates with the 180° rotation of the positioning box (12) in the horizontal angle. It is automatically clamped during the lifting process and the automatic welding of the connection position of the arch frame on the other side begins.

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