Convenient-to-assemble gas pipeline welding device for gas engineering

Abstract

The utility model belongs to the technical field of welding devices, and discloses a welding device of a gas pipeline for gas engineering, which is convenient to assemble and comprises a base, a pair of symmetrical movable blocks are slidably connected to the top end of the base, limiting rings are fixedly connected to the movable blocks, mounting blocks are rotatably connected to the inner ends of the limiting rings, and a support is fixedly connected to one end of the base. A pair of mounting blocks is mounted on the base, an electric push rod is mounted on the support, the output end of the electric push rod is connected with a welding gun, the welding gun is located over the middle position of the pair of mounting blocks, a limiting column is rotationally connected to the base, and a second servo motor is mounted on the base. And the pair of mounting blocks is driven by a second servo motor and a limiting column, so that the rotation synchronism can be ensured, the relative displacement of the pair of pipelines in the welding process is avoided, the welding quality is effectively improved, the structure is simple, and the manufacturing cost is relatively low.

Description

TECHNICAL FIELD

[0001] The utility model relates to welding device technical field especially relates to a kind of welding device of gas pipeline for gas engineering with easy assembly. BACKGROUND

[0002] Welding, also known as fusion welding, is a manufacturing process and technology that joins metal or other thermoplastic materials such as plastic through heating, high temperature or high pressure. In the industry, welding is often used to connect gas pipelines. Gas pipelines are usually laid outdoors, and workers need to plan the laying scheme of gas pipelines in combination with the installation environment, and then install and weld the gas pipelines according to the laying scheme.

[0003] After searching, a welding device for gas pipeline for gas engineering is disclosed in Chinese utility model patent (publication number CN222037255U). The upper and lower swivels are driven to rotate in the first and second clamping grooves by the driving assembly, thereby driving the clamped gas pipeline to rotate. The part not welded by the welding gun is rotated to the area directly opposite the welding gun, so that the worker does not need to disassemble the second arc-shaped clamping plate to adjust the rotating gas pipeline, thereby improving the efficiency of welding the gas pipeline.

[0004] However, through actual application, it is found that the technical solution still has at least the following defects:

[0005] In this scheme, the synchronous rotation of multiple motors drives the rotation of multiple swivels, which in turn drives the synchronous rotation of two pipe sections to achieve the welding of the circumference of the pipe connection. However, in actual use, it is difficult to achieve complete synchronization of multiple motors, requiring high-quality motors, precise control systems, effective feedback systems, and consideration of load and communication delay. The implementation difficulty is high, the investment cost is too high, and it is difficult to put into production due to cost-effectiveness and practicality considerations. UTILITY MODEL CONTENTS

[0006] The utility model intends to provide a welding device for gas pipeline for gas engineering with easy assembly to solve the problems raised in the above background technology. This scheme can drive the rotation of two pipe sections by a pair of mounting blocks, so that the welding gun can weld the circumference of the pipe. A pair of mounting blocks are driven by a second servo motor and a limiting column, which can ensure the synchronization of rotation and prevent relative displacement of the pair of pipes during welding, effectively improving the welding quality. The structure is simple, the manufacturing cost is low, and a pair of mounting blocks can move in opposite directions to ensure firm abutment of the pair of pipes and ensure the tightness of welding. The multiple clamping plates inside the mounting block can fix and clamp pipes of different sizes, effectively improving the applicability of the device.

[0007] To achieve the above purpose, the utility model provides the following technical solutions:

[0008] The utility model provides a welding device of gas pipeline for gas engineering of easy assembly, including base, the top end slidingly connected with a pair of each other symmetrical movable block of base, fixedly connected with the limiting ring on movable block, the inner end of limiting ring is rotatably connected with the mounting block, one end of base is fixedly connected with the support, and the electric push rod is installed on the support, and the output end of electric push rod is connected with the welding torch, the welding torch is located the just above the intermediate position of a pair of mounting block, the limiting post is rotatably connected on the base, and the second servo motor is installed on the base, and the output end of second servo motor is connected with the limiting post, one end of limiting ring close to limiting post is fixedly connected with the connecting block, one end of connecting block is rotatably connected with the first gear, and the outer end of mounting block is fixedly connected with the first gear ring, and the first gear and first gear ring are engagedly connected, and the limiting post respectively penetrates connecting block and first gear, and the first gear is coaxial with the limiting post, and the limiting hole that is matched with the limiting post is formed in the first gear.

[0009] Preferably, the base is rotatably connected with a bidirectional screw rod, and a first servo motor is installed on the base, the output end of the first servo motor is connected with the bidirectional screw rod, a pair of symmetrical screw rod sleeves are installed on the bidirectional screw rod, and the pair of screw rod sleeves are fixedly connected with the pair of movable blocks.

[0010] Preferably, a plurality of clamping plates are arranged in the inner end of the mounting block, the plurality of clamping plates are arranged in a ring shape at equal intervals with the axis of the mounting block as the center, and rubber pads are installed on the end of the plurality of clamping plates close to each other.

[0011] Preferably, the plurality of clamping plates are arranged in an arc shape, and positioning rods are fixedly connected to the end of the plurality of clamping plates away from each other, the positioning rods are slidably connected with the mounting block, and one end of the positioning rods extends to the outside of the mounting block.

[0012] Preferably, an extrusion ring is rotatably connected to the outer end of the mounting block, a plurality of extrusion grooves arranged in a ring shape at equal intervals are formed in the inner wall of the extrusion ring, the inner wall of the extrusion grooves is arranged in an arc shape, and the end of the positioning rods extending to the outside of the mounting block is located in the inside of the extrusion grooves.

[0013] Preferably, a third servo motor is installed on the outer end of the mounting block, the output end of the third servo motor is connected with a second gear, a second gear ring is fixedly connected to the outer end of the extrusion ring, the second gear and the second gear ring are engagedly connected, a spring is sleeved on the outer end of the positioning rod, and the two ends of the spring are fixedly connected with the positioning rod and the mounting block, respectively.

[0014] The technical scheme has the advantages that:

[0015] The scheme can drive two sections of pipelines to rotate through a pair of mounting blocks, so that the welding gun welds the circumferential circle of the pipelines, and the pair of mounting blocks are driven through a second servo motor and a limiting column, so that the synchronism of rotation can be guaranteed, so that relative displacement of the pair of pipelines in the welding process is avoided, the welding quality is effectively improved, the structure is simple, the manufacturing cost is low, the pair of mounting blocks can move in opposite directions, the pair of pipelines are ensured to be firmly abutted, the welding is ensured to be tight, and the multiple clamping plates arranged in the mounting blocks can fix and clamp pipelines of different sizes, and the applicability of the device is effectively improved. BRIEF DESCRIPTION OF DRAWINGS

[0016] Fig. 1 A first overall structure schematic view is provided for the utility model;

[0017] Fig. 2 A second overall structure schematic view is provided for the utility model;

[0018] Fig. 3 A first local explosion structure schematic view is provided for the utility model;

[0019] Fig. 4 A second local explosion structure schematic view is provided for the utility model;

[0020] Fig. 5 A mounting block structure schematic view is provided for the utility model;

[0021] Fig. 6 A mounting block local explosion structure schematic view is provided for the utility model.

[0022] Reference signs: 1, base; 2, support; 3, electric push rod; 4, first servo motor; 5, bidirectional screw rod; 6, screw rod sleeve; 7, movable block; 8, limiting ring; 9, mounting block; 10, first gear ring; 11, connecting block; 12, first gear; 13, second servo motor; 14, limiting column; 15, extrusion ring; 16, second gear ring; 17, extrusion groove; 18, clamping plate; 19, positioning rod; 20, spring; 21, third servo motor; 22, second gear. DETAILED DESCRIPTION

[0023] The utility model will be further explained in detail in combination with the drawings and embodiments:

[0024] As Figs. 1-4The utility model provides a kind of welding device of gas pipeline for gas engineering of easy assembly, including base 1, a pair of mutually symmetrical movable block 7 is slidably connected in the top end of base 1, movable block 7 is fixedly connected with limiting ring 8, the inner end of limiting ring 8 is rotatably connected with mounting block 9, one end of base 1 is fixedly connected with support 2, electric push rod 3 is installed on support 2, the output end of electric push rod 3 is connected with welding torch, welding torch is located in the just above the intermediate position of a pair of mounting block 9, limiting column 14 is rotatably connected on base 1, and second servo motor 13 is installed on base 1, the output end of second servo motor 13 is connected with limiting column 14, one end of limiting ring 8 close to limiting column 14 is fixedly connected with connecting block 11, one end of connecting block 11 is rotatably connected with first gear 12, first gear 12 and first ring gear 10 are engagedly connected, limiting column 14 is respectively penetrated in connecting block 11 and first gear 12, first gear 12 is coaxially arranged with limiting column 14, and limiting hole that is matched with limiting column 14 is formed in first gear 12.

[0025] The welding method is often used in industry to connect gas pipeline, and the gas pipeline is usually laid outdoors. Workers need to plan the laying scheme of the gas pipeline according to the installation environment, and then install and weld the gas pipeline according to the laying scheme of the gas pipeline. In the welding process, two pipes need to be fixed and the welding surfaces need to be abutted.

[0026] In the scheme, the user can insert two pipes into a pair of mounting blocks 9 respectively, and make the two pipes abut, and the abutting position is located just below the welding torch. The user can move the welding torch downward by starting the electric push rod 3, and then weld the pipes by the welding torch. In the welding process, the user starts the second servo motor 13 to drive the limiting column 14 to rotate. The rotation of the limiting column 14 can drive a pair of first gears 12 to rotate, and then drive a pair of first ring gears 10 to rotate. The first ring gear 10 can drive the mounting block 9 to rotate at the inner end of the limiting ring 8. The rotation of the pair of mounting blocks 9 can drive the two pipes to rotate, so that the welding torch can weld the circumference of the pipes. A pair of mounting blocks 9 are driven by the limiting column 14, which can ensure the synchronization of rotation, so as to ensure that the two pipes do not move relative to each other during welding, effectively improving the welding quality.

[0027] A pair of mutually symmetrical screw rod sleeves 6 are installed on the bidirectional screw rod 5, and a pair of movable blocks 7 are fixedly connected with a pair of screw rod sleeves 6 respectively.

[0028] In the scheme, the user can drive the bidirectional screw rod 5 to rotate by starting the first servo motor 4, and then drive a pair of screw rod sleeves 6 to move through the bidirectional screw rod 5, drive the movable block 7 to slide on the base 1 through the screw rod sleeve 6, and control a pair of movable blocks 7 to move synchronously in the direction of approaching or moving away from each other by changing the rotating direction of the first servo motor 4. In the use process, the user can make the pipes fixed in the pair of mounting blocks 9 approach each other and realize close abutment through the above-mentioned manner, thereby ensuring the tightness of welding. In the movement process of the pair of limiting rings 8, the connecting block 11 can drive the first gear 12 to slide on the limiting column 14, ensure that the first gear 12 is always in meshing connection with the first gear ring 10, and does not affect the rotation of the limiting column 14 driving the first gear 12.

[0029] A plurality of clamping plates 18 are arranged in the inner end of the mounting block 9, the plurality of clamping plates 18 are arranged in a ring shape at equal intervals with the axis of the mounting block 9 as the center, rubber pads are mounted at the ends of the plurality of clamping plates 18 close to each other, the plurality of clamping plates 18 are arranged in an arc shape, positioning rods 19 are fixedly connected at the ends of the plurality of clamping plates 18 away from each other, the positioning rods 19 are in sliding connection with the mounting block 9, and the ends of the positioning rods 19 extend to the outside of the mounting block 9. The outer end of the mounting block 9 is rotatably connected with the extrusion ring 15, a plurality of extrusion grooves 17 are arranged in the inner wall of the extrusion ring 15 in a ring shape at equal intervals, the inner wall of the extrusion groove 17 is arranged in an arc shape, the ends of the positioning rods 19 extending to the outside of the mounting block 9 are located in the inside of the extrusion groove 17, the outer end of the mounting block 9 is provided with the third servo motor 21, the output end of the third servo motor 21 is connected with the second gear 22, the outer end of the extrusion ring 15 is fixedly connected with the second gear ring 16, the second gear 22 and the second gear ring 16 are in meshing connection, the outer end of the positioning rod 19 is sleeved with the spring 20, and the two ends of the spring 20 are fixedly connected with the positioning rod 19 and the mounting block 9 respectively.

[0030] The plurality of clamping plates 18 arranged inside the mounting block 9 are used for fixing the pipeline, after the user inserts the pipeline into the inside of the mounting block 9, the third servo motor 21 is started to drive the second gear 22 to rotate, the second gear 22 drives the second gear ring 16 to rotate, and then drives the extrusion ring 15 to rotate at the outer end of the mounting block 9, in the process of rotating the extrusion ring 15, the inner wall of the plurality of extrusion grooves 17 gradually extrudes the plurality of positioning rods 19, and then the plurality of clamping plates 18 are synchronously pushed to the center position of the inner cavity of the mounting block 9, until the inner end of the plurality of clamping plates 18 clamps the pipeline, so that the device can be suitable for pipelines of various sizes, the rubber pad at the inner end of the clamping plate 18 can enhance the friction between the clamping plate 18 and the pipeline, and then improve the stability of the clamped pipeline, the synchronous clamping of the plurality of clamping plates 18 can ensure that the fixed pipeline is coaxial with the mounting block 9, when the plurality of positioning rods 19 are pushed, the spring 20 at the outer end of the positioning rod 19 is extruded, so the setting, when the user reversely rotates the third servo motor 21, the extrusion ring 15 can be reversely rotated, and then the plurality of positioning rods 19 are reset under the action of the spring 20, so that the plurality of clamping plates 18 are separated from the pipeline, and then the fixing of the pipeline is released, and the user can take out the pipeline conveniently.

[0031] The specific implementation process is as follows:

[0032] In use, the user inserts two pipes into a pair of mounting blocks 9 respectively, and abuts the two pipes, the abutting position is located directly below the welding gun, then the user starts the third servo motor 21 to drive the second gear 22 to rotate, drives the second gear ring 16 to rotate through the second gear 22, and further drives the extrusion ring 15 to rotate at the outer end of the mounting block 9, in the process of rotation of the extrusion ring 15, the inner wall of the plurality of extrusion grooves 17 gradually extrudes the plurality of positioning rods 19, and further synchronously pushes the plurality of clamping plates 18 to the center position of the inner cavity of the mounting block 9, until the inner end of the plurality of clamping plates 18 clamps the pipe, realizing the fixation of the pipe, then the user starts the first servo motor 4 to drive the bidirectional screw rod 5 to rotate, moves a pair of screw rod sleeves 6 through the bidirectional screw rod 5, drives the movable block 7 to slide on the base 1 through the screw rod sleeve 6, and the rotation direction of the first servo motor 4 can be changed to control a pair of movable blocks 7 to move synchronously in the direction of approaching or moving away from each other, so that the two pipes are tightly abutted in the use process, and the welding is ensured to be tight, in the movement process of the pair of limiting rings 8, the connecting block 11 can drive the first gear 12 to slide on the limiting column 14, ensuring that the first gear 12 is always in meshing connection with the first gear ring 10, in the welding process, the user starts the second servo motor 13 to drive the limiting column 14 to rotate, drives a pair of first gears 12 to rotate through the rotation of the limiting column 14, and further drives a pair of first gear rings 10 to rotate, drives the mounting block 9 to rotate at the inner end of the limiting ring 8 through the first gear ring 10, and further drives the two pipes to rotate synchronously through the rotation of the pair of mounting blocks 9, so that the welding gun welds the pipe circumference, when the plurality of positioning rods 19 are pushed, the spring 20 at the outer end of the positioning rod 19 is extruded, after the welding is completed, the user reversely starts the third servo motor 21 to reversely rotate, and further reversely rotates the extrusion ring 15, so that the plurality of positioning rods 19 are reset under the action of the spring 20, the plurality of clamping plates 18 are separated from the pipe, and the fixation of the pipe is released, thereby facilitating the user to take out the welded pipe.

[0033] The above is only an embodiment of the present application, and the specific technical solutions and / or common knowledge of the scheme are not described in detail. It should be noted that, for those skilled in the art, without departing from the technical solutions of the present application, a number of modifications and improvements can be made, which should also be considered as the protection scope of the present application, and these will not affect the effect and practicality of the present application. The protection scope of the present application should be subject to the content of its claims, and the specific implementation mode and the like in the specification can be used to explain the content of the claims.

Claims

1. A welding device for gas pipelines used in gas engineering that is easy to assemble, characterized in that: The system includes a base (1), on which a pair of symmetrical movable blocks (7) are slidably connected. A limit ring (8) is fixedly connected to the movable block (7), and an installation block (9) is rotatably connected to the inner end of the limit ring (8). A bracket (2) is fixedly connected to one end of the base (1), and an electric actuator (3) is installed on the bracket (2). A welding torch is connected to the output end of the electric actuator (3), and the welding torch is located directly above the middle position of the pair of installation blocks (9). A limit post (14) is rotatably connected to the base (1), and a second servo motor (13) is installed on the base (1). The output end of (13) is connected to the limiting post (14). The end of the limiting ring (8) near the limiting post (14) is fixedly connected to the connecting block (11). The end of the connecting block (11) is rotatably connected to the first gear (12). The outer end of the mounting block (9) is fixedly connected to the first gear ring (10). The first gear (12) and the first gear ring (10) are meshed. The limiting post (14) passes through the connecting block (11) and the first gear (12) respectively. The first gear (12) is coaxially arranged with the limiting post (14), and the first gear (12) has a limiting hole that matches the limiting post (14).

2. The welding device for gas pipelines used in gas engineering that is easy to assemble, as described in claim 1, is characterized in that: A bidirectional lead screw (5) is rotatably connected to the base (1), and a first servo motor (4) is installed on the base (1). The output end of the first servo motor (4) is connected to the bidirectional lead screw (5). A pair of symmetrical lead screw sleeves (6) are installed on the bidirectional lead screw (5), and the pair of lead screw sleeves (6) are respectively fixedly connected to a pair of movable blocks (7).

3. The welding device for gas pipelines used in gas engineering that is easy to assemble, as described in claim 1, is characterized in that: The mounting block (9) has multiple clamping plates (18) at its inner end. The multiple clamping plates (18) are arranged in a ring at equal intervals with the axis of the mounting block (9) as the center. Each of the multiple clamping plates (18) has a rubber pad installed at one end close to the other.

4. The welding device for gas pipelines used in gas engineering that is easy to assemble, as described in claim 3, is characterized in that: The multiple clamping plates (18) are all configured with an arc-shaped structure, and each of the multiple clamping plates (18) is fixedly connected to a positioning rod (19) at one end away from each other. The positioning rod (19) is slidably connected to the mounting block (9), and one end of the positioning rod (19) extends to the outside of the mounting block (9).

5. The welding device for gas pipelines used in gas engineering that is easy to assemble, as described in claim 4, is characterized in that: The outer end of the mounting block (9) is rotatably connected to an extrusion ring (15). The inner wall of the extrusion ring (15) is provided with a plurality of extrusion grooves (17) arranged in a ring at equal intervals. The inner wall of the extrusion groove (17) is set to be arc-shaped. The positioning rod (19) extends to the outer side of the mounting block (9) and one end is located inside the extrusion groove (17).

6. The welding device for gas pipelines used in gas engineering that is easy to assemble, as described in claim 5, is characterized in that: The outer end of the mounting block (9) is equipped with a third servo motor (21), the output end of the third servo motor (21) is connected to a second gear (22), the outer end of the extrusion ring (15) is fixedly connected to a second gear ring (16), the second gear (22) and the second gear ring (16) are meshed together, the outer end of the positioning rod (19) is fitted with a spring (20), and the two ends of the spring (20) are fixedly connected to the positioning rod (19) and the mounting block (9) respectively.

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