Welding device for tunnel supporting grid arch frame

Abstract

The utility model discloses a welding device for a tunnel supporting grating arch frame, and relates to the field of welding of tunnel supporting grating arch frames. Comprising a support frame; the supporting frame is connected with a first clamping assembly, a second clamping assembly, a third clamping assembly and a fourth clamping assembly. The device further comprises an electric sliding rail. The right end of the electric sliding rail is connected with a cross beam on the right side of the supporting frame. A sliding block of the electric sliding rail is downwards connected with a telescopic cylinder, a piston rod of the telescopic cylinder is connected with a welding gun, and the welding gun points downwards. The four clamping plates are operated to clamp a main reinforcement frame of the grid arch frame; and then the electric sliding rail is operated to enable the sliding block to move to a proper position, the welding gun is started to conduct welding operation, and the rest can be done in the same way to weld the main rib frame of the grid arch frame and the splayed rib at different joints in the left-right direction. In the process, an operator does not need to hold the welding gun to conduct welding operation, and the welding operation efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the field of welding of grid arch frames for tunnel support, and particularly relates to a welding device for grid arch frames for tunnel support. Background Technique

[0002] A tunnel is a project constructed by utilizing the underground space. During the construction of a tunnel, corresponding support building materials will be used. The grid arch frame is a kind of support building material used in tunnels, and it is a structure formed by interweaving steel bar grids and steel bars, with characteristics such as high strength and corrosion resistance.

[0003] In tunnel projects, grid arch frames are often used to support tunnels. The existing method of manufacturing grid arch frames is usually to manually hold a welding torch to weld each unit of the grid arch frame together. This method is time-consuming and laborious, and the operation efficiency is also low.

[0004] Therefore, a welding device for grid arch frames for tunnel support is proposed to improve the efficiency of welding operations. Content of the Utility Model

[0005] The purpose of the utility model is to provide a welding device for grid arch frames for tunnel support, so as to solve the problem of low operation efficiency of welding grid arch frames with a handheld welding torch.

[0006] To solve the above technical problems, the technical solutions adopted by the utility model are as follows:

[0007] A welding device for grid arch frames for tunnel support includes a support frame; the column in the left front of the support frame is connected forward with a first clamping assembly, the column in the right front is connected forward with a second clamping assembly, the column in the left rear is connected backward with a third clamping assembly, and the column in the right rear is connected backward with a fourth clamping assembly; the first clamping assembly, the second clamping assembly, the third clamping assembly, and the fourth clamping assembly have the same structure;

[0008] The first clamping assembly includes a mounting block, a first horizontal screw, an L-shaped plate, a second horizontal screw, and a clamping plate; the mounting block is connected to the front side of the column in the left front of the support frame; the left end of the first horizontal screw is rotatably connected to the mounting block, and the first horizontal screw also threadedly penetrates through one side plate of the L-shaped plate; the second horizontal screw threadedly penetrates through the other side plate of the L-shaped plate, and the rear end of the second horizontal screw is connected to the clamping plate, and the clamping plate points to the inside of the support frame; the mounting block of the second clamping assembly is connected to the front side of the column in the right front of the support frame, and the clamping plate of the second clamping assembly points to the inside of the support frame; the mounting block of the third clamping assembly is connected to the rear side of the column in the left rear of the support frame, and the clamping plate of the third clamping assembly points to the inside of the support frame; the mounting block of the fourth clamping assembly is connected to the rear side of the column in the right rear of the support frame, and the clamping plate of the fourth clamping assembly points to the inside of the support frame;

[0009] It further includes an electric slide rail; the left end of the electric slide rail is connected to the cross beam on the left side of the support frame, and the right end is connected to the cross beam on the right side of the support frame; the slider of the electric slide rail is connected downward with a telescopic cylinder, and the piston rod of the telescopic cylinder is connected with a welding torch, and the welding torch points downward.

[0010] Furthermore, it further includes two blowers on the left and right; the blower on the left is located on the left side of the support frame and blows towards the inside of the support frame, and the blower on the right is located on the right side of the support frame and blows towards the inside of the support frame.

[0011] Furthermore, the first clamping assembly further includes a vertical rod standing on the ground; the right end of the first horizontal screw is rotatably connected to the vertical rod.

[0012] Furthermore, the first clamping assembly further includes a driving motor; the driving motor is connected to the mounting block and the output end of the driving motor is connected to the left end of the first horizontal screw.

[0013] Furthermore, the slider is connected downward with two vertical electric push rods on the left and right, and the two vertical electric push rods on the left and right are respectively located on the left and right sides of the telescopic cylinder; the end of the piston rod of the vertical electric push rod is connected downward with a protective cover.

[0014] Furthermore, one side of the clamping plate facing the inside of the support frame is connected with a rubber pad.

[0015] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0016] Operate the first horizontal screws of the four clamping assemblies to rotate, thereby driving the four L-shaped plates to move, and the L-shaped plates drive the clamping plates to move accordingly. When the four clamping plates move to appropriate positions, rotate the second horizontal screw to make the four clamping plates move forward and backward, and then jointly clamp the main reinforcement frame of the lattice girder. Then operate the electric slide rail to make the slider move to an appropriate position, start the telescopic cylinder to align the welding torch with the joint of the main reinforcement frame and the eight-shaped bars of the lattice girder, and enable the welding torch to perform welding operations. And so on, weld the joints of the main reinforcement frame and the eight-shaped bars of the lattice girder at different positions in the left-right direction. According to needs, the four second horizontal screws can also be operated to drive the four clamping plates to move forward and backward, thereby changing the clamping positions of the four clamping plates on the main reinforcement frame of the lattice girder, and then continue the above welding operations, so as to weld the joints of the main reinforcement frame and the eight-shaped bars of the lattice girder at different positions in the front-back direction. The above operation process does not require the operator to hold the welding torch for welding operations, improving the welding operation efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a top view of the present utility model.

[0018] Figure 2 It is a front view of the present utility model.

[0019] The interpretations of each label in the figure are as follows: 1, vertical column; 2, mounting block; 3, first horizontal screw; 4, L-shaped plate; 5, second horizontal screw; 6, clamping plate; 7, electric slide rail; 8, cross beam; 9, slider; 10, telescopic cylinder; 11, welding torch; 12, fan; 13, vertical rod; 14, driving motor; 15, vertical electric push rod; 16, protective cover; 17, lattice arch frame. Specific implementation mode

[0020] Next, the technical solution of the present utility model will be clearly and completely described in conjunction with the attached drawings of the specification and the specific implementation mode. The described embodiments are one of the embodiments of the present utility model, and the present utility model may also have other implementation modes.

[0021] Embodiment:

[0022] See Figures 1 to 2 , a welding device for a lattice arch frame for tunnel support of the present utility model includes a support frame; a vertical column 1 in the front left of the support frame is connected forward with a first clamping assembly, a vertical column 1 in the front right is connected forward with a second clamping assembly, a vertical column 1 in the rear left is connected backward with a third clamping assembly, and a vertical column 1 in the rear right is connected backward with a fourth clamping assembly; the first clamping assembly, the second clamping assembly, the third clamping assembly, and the fourth clamping assembly have the same structure;

[0023] The first clamping assembly includes a mounting block 2, a first horizontal screw 3, an L-shaped plate 4, a second horizontal screw 5, and a clamping plate 6; the mounting block 2 is connected to the front side of the vertical column 1 in the front left of the support frame; the left end of the first horizontal screw 3 is rotatably connected to the mounting block 2, and the first horizontal screw 3 also threadedly penetrates through one side plate of the L-shaped plate 4; the second horizontal screw 5 threadedly penetrates through the other side plate of the L-shaped plate 4, and the rear end of the second horizontal screw 5 is connected to the clamping plate 6, and the clamping plate 6 points to the inside of the support frame; the mounting block 2 of the second clamping assembly is connected to the front side of the vertical column 1 in the front right of the support frame, and the clamping plate 6 of the second clamping assembly points to the inside of the support frame; the mounting block 2 of the third clamping assembly is connected to the rear side of the vertical column 1 in the rear left of the support frame, and the clamping plate 6 of the third clamping assembly points to the inside of the support frame; the mounting block 2 of the fourth clamping assembly is connected to the rear side of the vertical column 1 in the rear right of the support frame, and the clamping plate 6 of the fourth clamping assembly points to the inside of the support frame;

[0024] It also includes an electric slide rail 7; the left end of the electric slide rail 7 is connected to the cross beam 8 on the left side of the support frame, and the right end is connected to the cross beam 8 on the right side of the support frame; the slider 9 of the electric slide rail 7 is connected downward with a telescopic cylinder 10, and the piston rod of the telescopic cylinder 10 is connected with a welding torch 11, and the welding torch 11 points downward.

[0025] In this embodiment, the first horizontal screw 3 of the four groups of clamping components is rotated, so as to drive the four L-shaped plates 4 to move. The L-shaped plates 4 drive the clamping plates 6 to move accordingly. When the four clamping plates 6 move to appropriate positions, the second horizontal screw 5 is rotated to make the four clamping plates 6 move back and forth, and then the main reinforcement framework of the grid arch 17 is clamped together. Then, the electric slide rail 7 is operated to make the slider 9 move to an appropriate position, and the telescopic cylinder 10 is started to align the welding torch 11 with the joint of the main reinforcement framework and the inclined bars of the grid arch 17, and the welding torch 11 is enabled to carry out welding operations. And so on, the joints of the main reinforcement framework and the inclined bars of the grid arch 17 in different positions in the left-right direction are welded. As required, the four second horizontal screws 5 can also be operated to drive the four clamping plates 6 to move back and forth, so as to change the clamping positions of the four clamping plates 6 on the main reinforcement framework of the grid arch 17, and then continue the above welding operations, so that the joints of the main reinforcement framework and the inclined bars of the grid arch 17 in different positions in the front-back direction can be welded. The above operation process does not require the operator to hold the welding torch to carry out welding operations, improving the welding operation efficiency.

[0026] As a preferred embodiment, it further includes two fans 12 on the left and right; the left fan 12 is located on the left side of the support frame and blows towards the inside of the support frame, and the right fan 12 is located on the right side of the support frame and blows towards the inside of the support frame.

[0027] In this embodiment, the two fans 12 on the left and right blow air to cool the welding part of the grid arch 17, avoiding deformation caused by continuous high temperature.

[0028] As a preferred embodiment, the first clamping component further includes a vertical rod 13, and the vertical rod 13 stands on the ground; the right end of the first horizontal screw 3 is rotatably connected to the vertical rod 13.

[0029] In this embodiment, the presence of the vertical rod 13 makes the left and right forces of the first horizontal screw 3 more balanced, avoiding deformation or even damage of the first horizontal screw 3 under the long-term action of the L-shaped plates 4.

[0030] As a preferred embodiment, the first clamping component further includes a driving motor 14; the driving motor 14 is connected to the mounting block 2 and the output end of the driving motor 14 is connected to the left end of the first horizontal screw 3.

[0031] In this embodiment, the driving motor 14 is used to drive the first horizontal screw 3 to rotate, improving the rotation efficiency of the first horizontal screw 3.

[0032] As a preferred embodiment, the slider 9 is connected downward with two vertical electric push rods 15 on the left and right, and the two vertical electric push rods 15 on the left and right are respectively located on the left and right sides of the telescopic cylinder 10; the end of the piston rod of the vertical electric push rod 15 is connected downward with a protective cover 16.

[0033] In this embodiment, the electric push rod 15 is activated to pull the protective cover 16 upward to open the protection of the welding torch 11, and then the welding operation is carried out; after the welding process is completed, the electric push rod 15 is activated again to push the protective cover 16 back to its original position, covering the outside of the welding torch 11 to protect it and waiting for it to cool, so as to prevent the operator from being accidentally scalded.

[0034] As a preferred embodiment, a rubber pad is connected to the surface of the clamping plate 6 facing the inside of the support frame.

[0035] In this embodiment, the four clamping plates 6 clamp the main reinforcement frame of the lattice arch 17 through the rubber pads. The rubber pads have a larger contact area with the main reinforcement frame of the lattice arch 17, making the four clamping plates 6 clamp the main reinforcement frame of the lattice arch 17 more tightly.

[0036] The terms "connection", "fixation", and "butt joint" that appear in the description of the present utility model can be fixed connection, machining, welding, or mechanical connection. The specific meanings of the above terms in the present utility model should be understood according to the specific circumstances.

[0037] In the description of the present utility model, the terms "inside", "upper", "lower", "end", "side", "outside", etc. indicate the orientation or positional relationship only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation. Therefore, it should not be construed as a limitation of the present utility model.

[0038] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present utility model, rather than to limit them; although the present utility model has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some or all of the technical features; and these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present utility model.

Claims

1. A welding device for tunnel support grid arch, characterized in that: The support frame comprises a support frame; a left front column (1) of the support frame is connected forwardly to a first clamping assembly, a right front column (1) is connected forwardly to a second clamping assembly, a left rear column (1) is connected backwardly to a third clamping assembly, and a right rear column (1) is connected backwardly to a fourth clamping assembly; the first clamping assembly, the second clamping assembly, the third clamping assembly, and the fourth clamping assembly have the same structure; The first clamping assembly comprises a mounting block (2), a first horizontal screw rod (3), an L-shaped plate (4), a second horizontal screw rod (5), and a clamping plate (6); the mounting block (2) is connected to the front side of the column (1) at the left front of the support frame; the left end of the first horizontal screw rod (3) is rotatably connected to the mounting block (2), and the first horizontal screw rod (3) is also threadedly penetrated through one side plate of the L-shaped plate (4); the second horizontal screw rod (5) is threadedly penetrated through the other side plate of the L-shaped plate (4), and the rear end of the second horizontal screw rod (5) is connected to the clamping plate (6), and the clamping plate (6) The mounting block (2) of the second clamping assembly is connected to the front side of the column (1) at the right front of the support frame, and the clamping plate (6) of the second clamping assembly is directed to the inside of the support frame; the mounting block (2) of the third clamping assembly is connected to the rear side of the column (1) at the left rear of the support frame, and the clamping plate (6) of the third clamping assembly is directed to the inside of the support frame; the mounting block (2) of the fourth clamping assembly is connected to the rear side of the column (1) at the right rear of the support frame, and the clamping plate (6) of the fourth clamping assembly is directed to the inside of the support frame; It also includes an electric slide rail (7); the left end of the electric slide rail (7) is connected to the crossbeam (8) on the left side of the support frame, and the right end is connected to the crossbeam (8) on the right side of the support frame; the slider (9) of the electric slide rail (7) is connected downwardly to a telescopic cylinder (10), and the piston rod of the telescopic cylinder (10) is connected to a welding gun (11), and the welding gun (11) points downward.

2. A welding device for tunnel support grid arch according to claim 1, characterized in that: It also includes two left and right fans (12); the left fan (12) is located on the left side of the support frame and blows toward the inside of the support frame, and the right fan (12) is located on the right side of the support frame and blows toward the inside of the support frame.

3. A welding device for tunnel support grid arch according to claim 1, characterized in that: The first clamping assembly also includes a vertical rod (13), the vertical rod (13) being erected on the ground; the right end of the first horizontal screw rod (3) is rotatably connected to the vertical rod (13).

4. A welding device for tunnel support grid arch according to claim 1, characterized in that: The first clamping assembly also includes a driving motor (14); the driving motor (14) is connected to the mounting block (2), and an output end of the driving motor (14) is connected to the left end of the first horizontal screw rod (3).

5. A welding device for tunnel support grid arch according to claim 1, characterized in that: The slider (9) is downwardly connected to two left and right vertical electric push rods (15), which are respectively located on the left and right sides of the telescopic cylinder (10); and the ends of the piston rods of the vertical electric push rods (15) are downwardly connected to protective covers (16).

6. A welding device for tunnel support grid arch according to claim 1, characterized in that: A rubber pad is connected to one side of the clamping plate (6) facing the interior of the support frame.

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