Auxiliary device for butt joint of welded pipelines

Abstract

The utility model discloses a welding pipeline butt joint auxiliary device which comprises two butt joint tools which are symmetrically arranged, each butt joint tool comprises a machine box and a mass block which is arranged on the machine box in a sliding mode in the length direction, a tool table is installed on each mass block, an inserting groove is formed in the end portion of each tool table, and a positioning base is installed in each inserting groove in an inserted mode. A lower half groove penetrating in the length direction is formed in the positioning base, a cover plate is hinged to one end of the positioning base through a hinge, an upper half groove corresponding to the lower half groove is formed in the lower end of the cover plate, the other end of the positioning base is connected with the cover plate through a first bolt, a servo motor is arranged in the machine box, and a gear is arranged at the shaft end of the servo motor. And the upper part of the gear extends to the outside through a strip-shaped opening formed in the case and is meshed with a toothed rail groove formed in the bottom of the mass block. According to the welding pipeline butt joint auxiliary device, two pipelines needing to be welded can be stably in butt joint, and the positioning base is installed in an inserted mode and can be conveniently replaced according to different pipeline specifications.

Description

Technical Field

[0001] The utility model relates to the field of pipeline welding auxiliary devices, in particular to a welding pipeline butt-jointing auxiliary device. Background Art

[0002] A pipeline is a device connected by pipes, pipe connectors and valves for transporting gas, liquid or fluid with solid particles. During processing, the pipeline is usually welded and butt-jointed as needed.

[0003] Chinese patent 202220441139.X discloses a positioning device for pipeline welding, including a positioning platform, two positioning mechanisms, two lifting mechanisms and a lifting frame, wherein the two positioning mechanisms are symmetrically arranged at both ends of the positioning platform, the positioning mechanism is used for two pipeline welding positioning, each positioning mechanism is fixedly connected to a lifting mechanism at the top, the tops of the two lifting mechanisms are slidably connected to the lifting frame, the lifting frame is used to fix the two lifting mechanisms, and the two ends of the lifting frame are fixed to both sides of the positioning platform.

[0004] The positioning device for pipe welding adopts a fixed frame and a movable frame to clamp and fix the pipes to be butted, wherein the structure provided by the fixed frame is non-detachable and replaceable, so pipes with different diameters cannot be butt-welded. Utility Model Content

[0005] The utility model aims to provide a welding pipe butt auxiliary device, which can stably butt two pipes to be welded, thereby improving the quality of pipe welding. In addition, the positioning base is an insert-type installation method, which is convenient for replacement according to different pipe specifications.

[0006] In order to achieve the above-mentioned purpose, the utility model provides a welding pipe docking auxiliary device, which includes two symmetrically arranged docking tools, the docking tool includes a chassis and a mass block slidably arranged on the chassis along the length direction, a tooling table is installed on the mass block, a slot is arranged at the end of the tooling table, a positioning base is inserted and installed in the slot, a lower half groove is arranged on the positioning base which passes through the length direction, one end of the positioning base is hinged with a cover plate by a hinge, the lower end of the cover plate is provided with an upper half groove corresponding to the lower half groove, the other end of the positioning base is connected to the cover plate by a first bolt, a servo motor is arranged in the chassis, and a gear is arranged at the shaft end of the servo motor, the upper part of the gear extends to the outside through a strip-shaped opening arranged on the chassis and meshes with a rack groove arranged at the bottom of the mass block.

[0007] Preferably, a hydraulic lifting cylinder is provided between the mass block and the tooling table.

[0008] Preferably, the positioning base and the tooling table are detachably connected via a second bolt.

[0009] Preferably, the positioning base includes a positioning slider and a positioning seat arranged on the positioning slider; the lower half groove is arranged on the positioning seat, and the positioning slider, the positioning seat and the tooling table are detachably connected by the second bolt.

[0010] Preferably, upper slide rail sleeves are provided on both sides of the bottom of the mass block, and a lower slide rail bar slidably matched with the upper slide rail sleeves is provided on the top of the chassis.

[0011] Preferably, positioning tubes are fixedly connected to both sides of one of the chassis, and positioning rods that can be inserted into the positioning tubes are fixedly connected to both sides of the other chassis.

[0012] Preferably, a transverse plate is fixedly connected to the outer end of the chassis, a vertically extending hydraulic telescopic plate is mounted on the transverse plate, a Y-shaped support plate is fixedly connected to the upper end of the hydraulic telescopic plate, a circular arc groove is arranged inside the Y-shaped support plate, and the lower end of the circular arc groove is aligned with the lower end of the lower half groove.

[0013] Preferably, a plurality of supporting feet are provided at the bottom of the chassis.

[0014] According to the above technical scheme, the utility model provides a welding pipe docking auxiliary device, which includes two symmetrically arranged docking tools, the docking tool includes a chassis and a mass block slidably arranged on the chassis along the length direction, a tooling table is installed on the mass block, a slot is arranged at the end of the tooling table, a positioning base is inserted and installed in the slot, a lower half groove is arranged on the positioning base which passes through the length direction, one end of the positioning base is hinged with a cover plate by a hinge, the lower end of the cover plate is provided with an upper half groove corresponding to the lower half groove, the other end of the positioning base is connected to the cover plate by a first bolt, a servo motor is arranged in the chassis, and a gear is arranged at the shaft end of the servo motor, the upper part of the gear extends to the outside through a strip opening arranged on the chassis and meshes with the rack groove arranged at the bottom of the mass block.

[0015] The usage and beneficial effects of the welding pipe docking auxiliary device are as follows: when in use, align the two docking tools symmetrically along the length direction, wherein the length direction refers to the direction parallel to the length direction of the pipe to be docked, and then fix and clamp the two pipes to be docked between the corresponding upper and lower grooves, respectively, and lock them by the first bolt, and then start one of the servo motors, and cooperate with the rack groove under the rotation of the gear to make the mass block move toward the direction of the other mass block, so as to achieve the docking of the two pipes. When the distance between the ends of the two pipes is too large, the two servo motors can also be started at the same time, so that the two mass blocks move in the direction of approaching each other, thereby increasing the movable stroke. Since the docking between the two pipes is carried out by the servo motor, the docking effect can be accurately controlled, and the pipe can be kept stable and motionless during welding, thereby improving the quality of pipe welding.

[0016] Other features and advantages of the present invention will be described in detail in the subsequent specific implementation section. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the following specific embodiments, they are used to explain the present invention, but do not constitute a limitation to the present invention. In the accompanying drawings:

[0018] Figure 1 It is a schematic diagram of the overall structure of a preferred implementation of a welding pipe butt auxiliary device;

[0019] Figure 2 It is a side structural schematic diagram of a preferred embodiment of a welding pipe butt auxiliary device;

[0020] Figure 3 yes Figure 2 AA cross-sectional structural diagram;

[0021] Figure 4 It is a schematic diagram of the assembly relationship between the gear and the rack groove.

[0022] Description of Reference Numerals

[0023] 1-chassis; 2-mass block; 3-support foot; 4-positioning tube; 5-positioning rod; 6-cross plate; 7-hydraulic telescopic plate; 8-upper slide rail sleeve; 9-lower slide rail; 10-Y-type support plate; 11-arc groove; 12-positioning seat; 13-cover plate; 14-lower half groove; 15-upper half groove; 16-second bolt; 17-first bolt; 18-hydraulic lifting cylinder; 19-tooling table; 20-positioning slide block; 21-hinge; 22-strip mouth; 23-toothed rail groove; 24-servo motor; 25-gear. DETAILED DESCRIPTION

[0024] The specific implementation of the present invention is described in detail below in conjunction with the accompanying drawings. It should be understood that the specific implementation described here is only used to illustrate and explain the present invention, and is not used to limit the present invention.

[0025] In the present utility model, unless otherwise stated, directional words contained in terms such as "up, down, left, right, front, back, inside, outside" merely represent the orientation of the terms in normal usage, or are common names understood by those skilled in the art, and should not be regarded as limitations on the terms.

[0026] See also Figure 1-4 The welding pipe docking auxiliary device shown in the figure comprises two symmetrically arranged docking tools, the docking tool comprises a chassis 1 and a mass block 2 slidably arranged on the chassis 1 along the length direction, a tooling table 19 is installed on the mass block 2, a slot is arranged at the end of the tooling table 19, a positioning base is inserted and installed in the slot, a lower half groove 14 is arranged on the positioning base which passes through along the length direction, one end of the positioning base is hingedly connected to a cover plate 13 by a hinge 21, and an upper half groove 15 corresponding to the lower half groove 14 is arranged at the lower end of the cover plate 13, and the other end of the positioning base is connected to the cover plate 13 by a first bolt 17, a servo motor 24 is arranged in the chassis 1, and a gear 25 is arranged at the shaft end of the servo motor 24, and the upper part of the gear 25 extends to the outside through a strip opening 22 arranged on the chassis 1 and meshes with a rack groove 23 arranged at the bottom of the mass block 2.

[0027] Through the implementation of the above technical solution, when in use, the two docking tools are aligned symmetrically along the length direction, wherein the length direction refers to the direction parallel to the length direction of the pipe to be docked, and then the two pipes to be docked are fixed and clamped between the corresponding upper half groove 15 and the lower half groove 14, respectively, and locked by the first bolt 17, and then one of the servo motors 24 is started, and the gear 25 rotates to cooperate with the rack groove 23 to make the mass block 2 move toward the direction of the other mass block 2, so as to achieve the docking of the two pipes. When the distance between the ends of the two pipes is too large, the two servo motors 24 can also be started at the same time, so that the two mass blocks 2 move in the direction of approaching each other, thereby increasing the movable stroke. Since the docking between the two pipes is carried out by the servo motor 24, the docking effect can be accurately controlled, and the pipe can be kept stable and motionless during welding, thereby improving the pipe welding quality.

[0028] In this embodiment, a hydraulic lifting cylinder 18 is provided between the mass block 2 and the tooling table 19. Through the provision of the hydraulic lifting cylinder 18, the height of the pipeline can be adjusted to achieve a suitable welding position.

[0029] In this embodiment, the positioning base is detachably connected to the tooling table 19 via a second bolt 16. This detachable connection allows the positioning base to be replaced, and by replacing the positioning bases of the lower half slots 14 of different specifications, pipes of different specifications can be clamped.

[0030] In this embodiment, the positioning base includes a positioning slider 20 and a positioning seat 12 arranged on the positioning slider 20; the lower half groove 14 is arranged on the positioning seat 12, and the positioning slider 20, the positioning seat 12 and the workbench 19 are detachably connected by the second bolt 16. In this way, when replacing the positioning base, only the positioning seat 12 needs to be replaced, wherein both ends of the positioning slider 20 and the positioning seat 12 are provided with through holes for passing the second bolt 16, and the bottom of the slot is provided with a screw hole corresponding to the through hole, and the second bolt 16 can pass through the through hole and be screwed in the screw hole for fixing. The shape of the slot can be an inverted T-shaped structure, and one end of the slot is closed, the positioning slider 20 is an inverted T-shaped slider, and the positioning slider 20 is inserted from the open end of the slot to the closed end, and the stopper at the closed end can also play a role in inserting depth positioning. When the positioning slider 20 is inserted to the closed end position, the through hole and the screw hole can just correspond.

[0031] In this embodiment, in order to further provide a relative sliding structure between the mass block 2 and the chassis 1, upper slide rail sleeves 8 are provided on both sides of the bottom of the mass block 2, and a lower slide rail bar 9 that slides with the upper slide rail sleeves 8 is provided on the top of the chassis 1.

[0032] In this embodiment, positioning tubes 4 are fixedly connected to both sides of one of the chassis 1, and positioning rods 5 that can be inserted into the positioning tubes 4 are fixedly connected to both sides of the other chassis 1. Through the arrangement of the positioning tubes 4 and the positioning rods 5, the two can play a role in quickly aligning the two docking tools after being inserted in cooperation, laying a good foundation for the subsequent docking of pipelines.

[0033] In this embodiment, a transverse plate 6 is fixedly connected to the outer end of the chassis 1, and a hydraulic expansion plate 7 extending vertically is installed on the transverse plate 6. A Y-shaped support plate 10 is fixedly connected to the upper end of the hydraulic expansion plate 7. A circular arc groove 11 is arranged in the Y-shaped support plate 10, and the lower end of the circular arc groove 11 is aligned with the lower end of the lower half groove 14. Through such an arrangement, a supporting effect can be played on the tail of a longer pipeline, and the stability of the pipeline when it is fixed can be improved. One end of the pipeline is clamped by the upper half groove 15 and the lower half groove 14, and the other end is slidably arranged in the circular arc groove 11 of the Y-shaped support plate 10. In order to reduce the sliding contact area, a circular chamfer can be arranged on the edge of the circular arc groove 11.

[0034] In this embodiment, a plurality of support legs 3 are provided at the bottom of the chassis 1. The support legs 3 can be provided to support the docking tooling, and can also prevent the bottom surface of the chassis 1 from directly contacting the bottom surface. The side of the chassis 1 can be provided with corresponding inspection doors or heat dissipation holes as needed. The inspection doors and heat dissipation holes are conventional settings in the field, and are not the invention points of this application, and are not shown in the figure. Of course, the chassis 1 in the utility model can also be replaced by a frame structure bracket, and a panel can be provided on the top surface.

[0035] The preferred embodiments of the present invention are described in detail above in conjunction with the accompanying drawings. However, the present invention is not limited to the specific details in the above embodiments. Within the technical concept of the present invention, the technical solution of the present invention can be subjected to a variety of simple modifications, and these simple modifications all belong to the protection scope of the present invention.

[0036] It should also be noted that the various specific technical features described in the above specific embodiments can be combined in any suitable manner without contradiction. In order to avoid unnecessary repetition, the present utility model will not further describe various possible combinations.

[0037] In addition, various embodiments of the present invention may be arbitrarily combined, and as long as they do not violate the concept of the present invention, they should also be regarded as the contents disclosed by the present invention.

Claims

1. A welding pipe butt auxiliary device, characterized in that: The welding pipe butt joint auxiliary device comprises two butt joint tools which are symmetrically arranged, the butt joint tools comprising a chassis (1) and a mass block (2) which is slidably arranged on the chassis (1) along the length direction, a tooling table (19) being installed on the mass block (2), a slot being arranged at the end of the tooling table (19), a positioning base being inserted and installed in the slot, a lower half slot (14) penetrating along the length direction being arranged on the positioning base, one end of the positioning base being hingedly connected to a cover plate (13) via a hinge (21), The lower end of the cover plate (13) is provided with an upper half groove (15) corresponding to the lower half groove (14); the other end of the positioning base is connected to the cover plate (13) via a first bolt (17); a servo motor (24) is provided in the chassis (1); a gear (25) is provided at the shaft end of the servo motor (24); the upper part of the gear (25) extends to the outside through a strip-shaped opening (22) provided on the chassis (1) and meshes with a rack groove (23) provided at the bottom of the mass block (2).

2. The welding pipe butt auxiliary device according to claim 1, characterized in that: A hydraulic lifting cylinder (18) is provided between the mass block (2) and the tooling platform (19).

3. The welding pipe butt auxiliary device according to claim 1, characterized in that: The positioning base and the tooling platform (19) are detachably connected via a second bolt (16).

4. The welding pipe butt auxiliary device according to claim 3 is characterized in that: The positioning base comprises a positioning slider (20) and a positioning seat (12) arranged on the positioning slider (20); The lower half groove (14) is arranged on the positioning seat (12), and the positioning slide block (20), the positioning seat (12) and the tooling table (19) are detachably connected via the second bolt (16).

5. The welding pipe butt auxiliary device according to claim 1, characterized in that: Upper slide rail sleeves (8) are arranged on both sides of the bottom of the mass block (2), and a lower slide rail bar (9) which is slidably matched with the upper slide rail sleeves (8) is arranged on the top of the chassis (1).

6. The welding pipe butt auxiliary device according to claim 1, characterized in that: Positioning tubes (4) are fixedly connected to both sides of one of the chassis (1), and positioning rods (5) that can be inserted into the positioning tubes (4) are fixedly connected to both sides of the other chassis (1).

7. The welding pipe butt joint auxiliary device according to any one of claims 1 to 6, characterized in that: A transverse plate (6) is fixedly connected to the outer end of the chassis (1), a hydraulic telescopic plate (7) extending vertically is mounted on the transverse plate (6), a Y-shaped support plate (10) is fixedly connected to the upper end of the hydraulic telescopic plate (7), a circular arc groove (11) is arranged inside the Y-shaped support plate (10), and the lower end of the circular arc groove (11) is aligned with the lower end of the lower half groove (14).

8. The welding pipe butt auxiliary device according to claim 1, characterized in that: A plurality of supporting feet (3) are provided at the bottom of the chassis (1).

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