Auxiliary device for pipeline welding

Abstract

The utility model belongs to the field of pipeline welding, and discloses an auxiliary device for pipeline welding, which comprises a walking assembly used for bearing and moving, and further comprises a rack assembly arranged on the walking assembly and used for bearing and adjusting the height up and down, and two clamping assemblies used for clamping a pipeline for rotary welding are symmetrically mounted on the rack assembly; the rack assembly comprises a lifting table, four adjusting mechanisms used for vertically sliding to adjust the height are evenly distributed at the four corners of the bottom of the lifting table, and two lifting hook mechanisms used for bearing a welding cable are symmetrically arranged in front of the lifting table. The clamping assembly comprises a fixing frame, a chuck mechanism used for clamping the pipeline to rotate in an up-down four-point mode is arranged in the middle of the fixing frame, and a downward pressing screw rod is installed at the top of the fixing frame. According to the auxiliary device for pipeline welding, due to the arrangement that the pipelines are tightly pressed and clamped at the upper point and the lower point, the pipelines with different diameters can be conveniently clamped, and the applicability is improved; and through the arrangement of circumferential rotation of the pipeline clamped by the upper point and the lower point, the convenience of pipeline welding is improved.

Description

Technical Field

[0001] This utility model belongs to the field of pipeline welding, and in particular relates to an auxiliary device for pipeline welding. Background Technology

[0002] Pipeline welding requires one person to fix the pipe while another person performs the welding work. In addition, cables are often left hanging on the ground when performing this type of work on the construction site. Traditional methods of this type of work are labor-intensive and pose safety hazards. A task that one person can complete independently requires at least two people to work together, which is time-consuming and labor-intensive.

[0003] Comparing with Chinese Patent CN206153832U, an auxiliary device for pipe welding is disclosed. A hydraulic telescopic cylinder is located at the lower end of a support base, with its lower end fixedly connected to the base. A semi-circular pipe clamp is movably connected to the upper left side of the support base via a connecting shaft. An upper fixing plate is welded to the upper left side of the semi-circular pipe clamp, and a lower fixing plate is welded to the upper right side of the support base. Threaded connection holes are respectively formed at corresponding positions on the lower and upper fixing plates. A groove is formed at the upper end of the support base, and multiple rollers are connected along the inner wall of the groove via a rotating shaft. The telescopic hydraulic cylinder can be adjusted to a suitable height according to the pipe requirements. The cooperation between the support base and the semi-circular pipe clamp secures the pipe to be welded within the support base, ensuring accurate alignment of the pipe welding ends and limiting misalignment errors to within an allowable range, thus improving welding quality. The rollers within the support base facilitate pipe rotation, making welding easier and reducing labor intensity.

[0004] However, the aforementioned patent can only clamp pipes of a specific size, making it unsuitable for pipes of different diameters. Furthermore, it requires loosening before circumferential rotation, which reduces the convenience of pipe welding. Therefore, a new device needs to be designed. Utility Model Content

[0005] The purpose of this invention is to provide an auxiliary device for pipe welding to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] An auxiliary device for pipe welding includes a traveling assembly for supporting movement, and a frame assembly mounted on the traveling assembly for supporting and adjusting the height vertically. Two clamping assemblies for clamping and rotating the pipe for welding are symmetrically mounted on the frame assembly. The frame assembly includes a lifting platform with four evenly distributed adjustment mechanisms at the four corners of its bottom for vertical sliding adjustment. Two hook mechanisms for supporting welding cables are symmetrically arranged at the front of the lifting platform. The clamping assemblies include a fixed frame, which is an open-front frame. A clamping mechanism for clamping and rotating the pipe at four points vertically is located in the middle of the fixed frame. A downward-pressing screw is mounted on the top of the fixed frame, and a handle is located at the top of the downward-pressing screw.

[0008] Furthermore: the walking assembly includes a base plate, four omnidirectional wheels are evenly installed at the four corners of the bottom of the base plate, a brake plate is provided on the omnidirectional wheels, and four connecting seats are evenly distributed at the four corners of the base plate.

[0009] Furthermore: the connecting seat and the base plate are welded together, and the caster wheel is bolted to the base plate.

[0010] Furthermore: the adjustment mechanism includes a support tube, a locking sleeve is installed at the top of the support tube, and a support rod is slidably installed in the middle of the support tube; the hook mechanism includes an extended hook, an insulating sleeve is attached to the extended hook, and a limit plate is provided at one end of the extended hook.

[0011] Furthermore: the insulating sleeve is made of plastic flexible tubing, and the extended hook and the lifting platform are rotatably connected.

[0012] Furthermore: the clamping mechanism includes a fixed base, on which two lower support rollers are symmetrically mounted, and a movable base is provided above the fixed base, on which two upper support rollers are symmetrically mounted. During operation, the upper support rollers and the lower support rollers form a four-point uniform clamping of the pipe, and the movable base and the lower pressure screw are rotatably connected.

[0013] Furthermore: the fixed seat and the fixed frame are riveted together, the lower support roller is connected to the fixed seat bearing, and the upper support roller is connected to the movable seat bearing.

[0014] Compared with existing technologies, the beneficial effects are:

[0015] 1. The four-point clamping mechanism facilitates the clamping of pipes of different diameters, thus improving applicability;

[0016] 2. The four-point clamping mechanism for circumferential rotation of the pipe improves the ease of pipe welding;

[0017] 3. The design of the welding cable with the extended hook reduces wear caused by the welding cable dragging on the ground. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of an auxiliary device for pipe welding according to the present invention;

[0019] Figure 2 This is a schematic diagram of the walking component of an auxiliary device for pipe welding as described in this utility model;

[0020] Figure 3 This is a schematic diagram of the frame assembly of an auxiliary device for pipe welding according to the present invention;

[0021] Figure 4 This is a schematic diagram of the hook mechanism of an auxiliary device for pipe welding according to the present invention;

[0022] Figure 5 This is a schematic diagram of the clamping assembly of an auxiliary device for pipe welding according to the present invention;

[0023] Figure 6 This is a right view of the clamping assembly of an auxiliary device for pipe welding according to the present invention.

[0024] In the attached diagram, the following are the reference numerals: 101, base plate; 102, caster wheel; 103, brake plate; 104, connecting seat; 201, lifting platform; 202, support tube; 203, support rod; 204, locking sleeve; 205, outward hook; 206, insulating sleeve; 207, limiting plate; 301, fixing frame; 302, fixing seat; 303, lower support roller; 304, movable seat; 305, upper support roller; 306, lower pressure screw; 307, handle. Detailed Implementation

[0025] 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.

[0026] Please see Figures 1-6 An auxiliary device for pipe welding includes a traveling assembly for supporting movement, and a frame assembly mounted on the traveling assembly for supporting and adjusting the height. Two clamping assemblies for clamping and rotating the pipe are symmetrically mounted on the frame assembly.

[0027] In this embodiment: the walking assembly includes a base plate 101, four omnidirectional wheels 102 are evenly installed at the four corners of the bottom of the base plate 101, a brake plate 103 is provided on the omnidirectional wheels 102, and four connecting seats 104 are evenly distributed at the four corners of the base plate 101; the connecting seats 104 are welded together with the base plate 101, and the omnidirectional wheels 102 are bolted to the base plate 101; the base plate 101 supports the whole and moves to the welding position under the support of the omnidirectional wheels 102, and the brake plate 103 is stepped down to fix it, and the connecting seats 104 are used to fix the bottom end of the support tube 202;

[0028] In this embodiment: the frame assembly includes a lifting platform 201, with four evenly distributed adjustment mechanisms at the four corners of the bottom of the lifting platform 201 for vertical sliding adjustment of height, and two symmetrically arranged hook mechanisms for supporting welding cables at the front of the lifting platform 201; the adjustment mechanism includes a support tube 202, with a locking sleeve 204 installed at the top of the support tube 202, and a support rod 203 slidably installed in the middle of the support tube 202; the hook mechanism includes an extended hook 205, with an insulating sleeve 206 attached to the extended hook 205, and the extended hook 205 has an outer... A limiting plate 207 is provided at one end; the insulating sleeve 206 is made of plastic flexible hose, and the extended hook 205 is rotatably connected to the lifting platform 201; the lifting platform 201 is raised to a suitable height, so that the support rod 203 slides up and down along the support tube 202, and then the locking sleeve 204 is tightened to fix it. The welding cable is hung on the extended hook 205 through the insulating sleeve 206 to reduce wear caused by dragging friction. At the same time, the extended hook 205 rotates under the limitation of the limiting plate 207 and the support of the lifting platform 201, which facilitates the adjustment of the position of the welding cable.

[0029] In this embodiment: the clamping assembly includes a fixed frame 301, with a chuck mechanism for clamping the pipe at four points for rotation in the middle of the fixed frame 301, a pressing screw 306 mounted on the top of the fixed frame 301, and a handle 307 at the top of the pressing screw 306; the chuck mechanism includes a fixed base 302, with two lower support rollers 303 symmetrically mounted on the fixed base 302, and a movable base 304 above the fixed base 302, with two upper support rollers 305 symmetrically mounted on the movable base 304. During operation, the upper support rollers 305 and lower support rollers 303 form a four-point uniform clamping of the pipe, and the movable base 304 is rotatably connected to the pressing screw 306; the fixed base 302 and the fixed frame 301 are also connected. 1. The pipes are riveted together, with the lower support roller 303 and the fixed seat 302 connected by bearings, and the upper support roller 305 and the movable seat 304 connected by bearings. The pipe is inserted into the fixed frame 301 from the front and placed between the two lower support rollers 303 supported by the fixed seat 302. Then, the lower screw 306 is rotated by the handle 307, so that the lower screw 306 pushes the movable seat 304 down under the support of the fixed frame 301 until the upper support roller 305 on the movable seat 304 presses the pipe tightly onto the lower support roller 303, forming a uniform clamping at four points. At the same time, due to the rotational connection between the upper support roller 305 and the lower support roller 303, the pipe can rotate arbitrarily in the circumferential direction during welding, increasing the convenience of welding.

[0030] Working principle: The base plate 101, supporting the entire structure, moves to the welding position under the support of the casters 102, and the brake plate 103 is pressed to fix it. Then, the lifting platform 201 is raised to a suitable height, allowing the support rod 203 to slide up and down along the support tube 202. Then, the locking sleeve 204 is tightened to fix it. Next, the pipe is inserted into the fixing frame 301 from the front and placed between the two lower support rollers 303 supported by the fixing seat 302. Then, the lowering screw 306 is rotated by the handle 307, causing the lowering screw 306 to push the movable part under the support of the fixing frame 301. The movable seat 304 moves down until the upper support roller 305 on the movable seat 304 presses the pipe tightly onto the lower support roller 303, forming a uniform clamping at four points. At the same time, during welding, due to the rotational connection between the upper support roller 305 and the lower support roller 303, the pipe can rotate arbitrarily in the circumference, increasing the convenience of welding. The welding cable is hung on the extended hook 205 through the insulating sleeve 206, reducing wear caused by dragging friction. Meanwhile, the extended hook 205 rotates under the limit of the limiting plate 207 and the support of the lifting platform 201, making it convenient to adjust the position of the welding cable.

[0031] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An auxiliary device for pipe welding, comprising a traveling assembly for supporting movement, characterized in that: It also includes a frame assembly on the walking assembly for supporting and adjusting the height, and two clamping assemblies for clamping the pipe for rotary welding are symmetrically installed on the frame assembly; The frame assembly includes a lifting platform (201), and four adjustment mechanisms for sliding up and down to adjust the height are evenly distributed at the four corners of the bottom of the lifting platform (201). Two hook mechanisms for supporting welding cables are symmetrically arranged at the front of the lifting platform (201). The clamping assembly includes a fixed frame (301), which is a frame shape with an open front end. The fixed frame (301) has a clamping mechanism in the middle for clamping the pipe at four points above and below for rotation. A pressing screw (306) is installed on the top of the fixed frame (301), and a handle (307) is provided at the top of the pressing screw (306).

2. The auxiliary device for pipe welding according to claim 1, characterized in that: The walking assembly includes a base plate (101), four universal wheels (102) are evenly installed at the four corners of the bottom of the base plate (101), a brake plate (103) is provided on the universal wheels (102), and four connecting seats (104) are evenly distributed at the four corners of the base plate (101).

3. The auxiliary device for pipe welding according to claim 2, characterized in that: The connecting seat (104) and the base plate (101) are welded together, and the caster wheel (102) is bolted to the base plate (101).

4. The auxiliary device for pipe welding according to claim 1, characterized in that: The adjustment mechanism includes a support tube (202), a locking sleeve (204) is installed at the top of the support tube (202), and a support rod (203) is slidably installed in the middle of the support tube (202); the hook mechanism includes an extended hook (205), an insulating sleeve (206) is pasted on the extended hook (205), and a limit plate (207) is provided at one end of the extended hook (205).

5. An auxiliary device for pipe welding according to claim 4, characterized in that: The insulating sleeve (206) is made of plastic hose material, and the extended hook (205) and the lifting platform (201) are rotatably connected.

6. The auxiliary device for pipe welding according to claim 1, characterized in that: The clamping mechanism includes a fixed base (302), on which two lower support rollers (303) are symmetrically mounted. A movable base (304) is provided above the fixed base (302), on which two upper support rollers (305) are symmetrically mounted. During operation, the upper support rollers (305) and the lower support rollers (303) form a four-point uniform clamping of the pipe. The movable base (304) and the lower pressure screw (306) are rotatably connected.

7. An auxiliary device for pipe welding according to claim 6, characterized in that: The fixed seat (302) and the fixed frame (301) are riveted together, the lower support roller (303) is connected to the fixed seat (302) by a bearing, and the upper support roller (305) is connected to the movable seat (304) by a bearing.

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