CN218906339U

CN218906339U - Welding device for large pipe fitting elbow

Info

Publication number: CN218906339U
Application number: CN202223503925.7U
Authority: CN
Inventors: 刘时雷; 沈根荣
Original assignee: Zhejiang Zhongdi Stainless Steel Pipe Co ltd
Current assignee: Zhejiang Zhongdi Stainless Steel Pipe Co ltd
Priority date: 2022-12-23
Filing date: 2022-12-23
Publication date: 2023-04-25
Anticipated expiration: 2032-12-23

Abstract

The utility model relates to a welding device for a large pipe fitting elbow. The welding device solves the problems that in the prior art, the positioning effect is poor and telescopic adjustment is difficult to realize when the welding device is used. The welding device comprises an assembling cylinder body, wherein one end of the assembling cylinder body is provided with a welding protective cover, a welding connecting rod structure is arranged in the assembling cylinder body, one end of the welding connecting rod structure is movably positioned through a circumferential positioning component which is arranged on the assembling cylinder body and is close to one end of the welding protective cover, the other end of the welding connecting rod structure is provided with a rotating pushing component, one end of the rotating pushing component is connected with the circumferential positioning component and provides pushing force, the other end of the rotating pushing component is positioned through a rotating positioning structure which is arranged on the circumferential inner side of the other end of the assembling cylinder body, and the rotating pushing component is driven by a gear driving mechanism. The utility model has the advantages that: good positioning effect and flexible extension.

Description

Welding device for large pipe fitting elbow

Technical Field

The utility model relates to the technical field of mechanical equipment, in particular to a welding device for a large pipe fitting elbow.

Background

The piping is used in a wide variety of applications, mainly in water supply, water drainage, heat supply, gas supply, long distance transportation of petroleum and natural gas, agricultural irrigation, hydraulic engineering and various industrial devices. When welding large-sized metal pipe fittings, a small-sized lifting device is needed to lift the large-sized pipe fittings, so that the end parts of the two pipe fittings are butted and overlapped and then welded; in addition, the welding equipment used in the process of welding the large pipe fitting elbow easily shakes, so that the welding head is difficult to position and stretch and retract to adjust, and the using effect is affected.

In order to solve the defects existing in the prior art, long-term exploration is performed, and various solutions are proposed. For example, chinese patent literature discloses an adjustment structure and a large pipe welding device [ CN202111252955.2] that includes a pipe support assembly and an auxiliary support assembly. The pipe fitting supporting assembly comprises a bottom plate, a telescopic adjusting rod piece and a supporting seat, wherein the bottom end of the telescopic adjusting rod piece is arranged at the top of the bottom plate, and the bottom of the supporting seat is fixedly connected to the top of the telescopic adjusting rod piece; the auxiliary supporting components are provided with two groups, and the two groups of auxiliary supporting components are respectively arranged on two sides of the bottom plate. And the first hand wheel in the auxiliary supporting component is rotated, the first hand wheel drives the first threaded rod to rotate, the first threaded rod is rotated under the threaded connection with the first fixing nut, the first threaded rod drives the supporting plate at the bottom to axially move along the first threaded rod, and the supporting plate is adjusted in height in the vertical direction, so that the whole device can horizontally support the pipe fitting port.

The problem that the pipe fitting is difficult to accurately position when large-scale pipe fitting welds among the prior art has been solved to a certain extent to above-mentioned scheme, but this scheme still has a great deal of shortages, for example: the welding equipment is easy to shake, so that the welding head is difficult to position and stretch and retract to adjust, and the using effect is affected.

Disclosure of Invention

The utility model aims to solve the problems and provide a welding device for large pipe fittings and elbows.

In order to achieve the above purpose, the present utility model adopts the following technical scheme: the utility model provides a welding set for large-scale pipe fitting elbow, including the assembly barrel, assembly barrel one end is equipped with the welding protection casing, is equipped with the welding connecting rod structure in the assembly barrel, and welding connecting rod structure one end is through setting up the circumference locating component activity location that is close to welding protection casing one end at the assembly barrel, and the welding connecting rod structure other end is equipped with rotates the pushing component, rotates pushing component one end and is connected with circumference locating component and provide the thrust, and rotates the pushing component other end and fix a position through setting up the rotation locating structure at assembly barrel other end circumference inboard, rotates the pushing component and passes through gear drive mechanism drive.

During the use can be through setting up respectively at the inboard circumference locating component in assembly barrel both ends circumference and rotating the location structure and fix a position welding connecting rod structure, ensure steady state, secondly provide driving force for rotating the pushing component through gear drive mechanism, make rotate the pushing component and promote circumference locating component linkage to drive welding connecting rod structure and carry out flexible removal, not only improved welding stability, can freely adjust the flexible moreover, the flexibility of use is good.

In the welding device for the large pipe fitting elbow, the welding connecting rod structure comprises a welding head, one end of the welding head is connected with a telescopic connecting rod, the telescopic connecting rod is slidably inserted into a sliding connecting cylinder, a reset tension spring is arranged in the sliding connecting cylinder, and one end, close to the telescopic connecting rod, of the welding head is provided with an annular connecting groove for connecting a circumferential positioning assembly. When the welding head returns to the pushing force, the return spring can quickly return to the upper welding head.

In the welding device for the large pipe fitting elbow, the circumferential positioning assembly comprises at least three rotating connectors, the rotating connectors are circumferentially arranged in annular rotating grooves formed in one end face of the assembling cylinder body in a rotating mode, the rotating connectors are connected with positioning support rods, one ends, far away from the rotating connectors, of the positioning support rods are hinged to movable support rods, and one ends, far away from the positioning support rods, of the movable support rods are connected with the welding heads through annular connecting grooves.

The circumferential positioning assembly can ensure that the welding head is always positioned at the axial center of the assembly cylinder body, and can drive the welding head to synchronously stretch out and draw back when the movable supporting rod is stressed, so that the linkage effect is good.

In the above-mentioned welding set for large-scale pipe fitting elbow, rotate the propelling movement subassembly including setting up the annular movement recess at sliding connection section of thick bamboo circumference outer wall, the last rotation of annular movement recess is equipped with movable push rod structure, and movable push rod structure is through setting up the linkage drive structure drive at sliding connection section of thick bamboo circumference outside.

In the welding device for the large pipe fitting elbow, the movable push rod structure comprises a passive push ring, a plurality of linkage push rods connected with the movable support rods are arranged on the passive push ring, and a jacking spring is arranged on one side of the passive push ring.

The movable push rod structure can provide movable driving force for the movable support rod, and the pushing spring can enable the passive push ring to reset and unload force rapidly.

In the above-mentioned welding set for large-scale pipe fitting elbow, linkage drive structure is including setting up the linkage ring body that the push ring kept away from top pressure spring one side of being passive, and the linkage ring body links to each other with the cover and establishes the linkage barrel in sliding connection section of thick bamboo circumference outside, and linkage barrel one end passes through foretell gear drive mechanism drive.

The passive push ring can be driven to move through the threaded rotation of the linkage ring body, and the passive push ring is limited.

In the welding device for the large pipe fitting elbow, the gear driving mechanism comprises a rotation driving motor, a driving gear is arranged at the output end of the rotation driving motor, a driven gear is arranged at one end of the rotation pushing assembly, and the driven gear is meshed with the driving gear.

In the welding device for the large pipe fitting elbow, the rotation positioning structure comprises a plurality of positioning connecting rods, one ends of the positioning connecting rods are connected with one end face of the assembling cylinder body, the other ends of the positioning connecting rods are connected with positioning bearings, and the positioning bearings are sleeved on the linkage cylinder body.

The linkage cylinder body can be circumferentially rotated and positioned through the rotation positioning structure, so that the positioning of the welding connecting rod structure is realized, and the positioning effect is not influenced when the linkage cylinder body rotates.

In the welding device for the large pipe fitting elbow, the two ends of the annular moving groove are provided with the limiting parts, and the annular moving groove is internally provided with the sliding parts and the threaded parts respectively.

In the welding device for a large pipe fitting elbow, one end of the linkage cylinder is exposed to one end of the assembly cylinder, and one end of the sliding connection cylinder is exposed to one end of the linkage cylinder.

Compared with the prior art, the utility model has the advantages that: the welding rod structure is convenient to operate and use, the two ends of the welding rod structure can be circumferentially positioned, the welding head is always positioned at the axis position of the assembly cylinder body, stability in welding is improved, the gear driving mechanism is utilized to provide driving force for the rotation pushing assembly, the rotation pushing assembly pushes the movable supporting rod to be linked, the welding head is driven to stretch and retract, and the purpose of flexibly adjusting the approach distance of the welding point is achieved.

Drawings

FIG. 1 is a schematic view of the overall structure of the present utility model;

FIG. 2 is a schematic view of a partial structure in the present utility model;

FIG. 3 is a schematic view of the internal structure of the sliding connection of the present utility model;

FIG. 4 is a schematic view of the structure of one end of the fitting cylinder of the present utility model;

FIG. 5 is a schematic view of the structure of the other end of the fitting cylinder of the present utility model;

in the figure: the assembly cylinder 1, the welding shield 11, the welding connecting rod structure 2, the welding head 21, the telescopic connecting rod 22, the sliding connecting cylinder 23, the reset tension spring 24, the annular connecting groove 25, the circumferential positioning component 3, the rotating connecting head 31, the annular rotating groove 32, the positioning strut 33, the movable strut 34, the rotating pushing component 4, the annular moving groove 41, the limiting part 411, the sliding part 412, the threaded part 413, the movable push rod structure 42, the passive push ring 421, the linkage push rod 422, the pressing spring 423, the linkage driving structure 43, the linkage ring body 431, the linkage cylinder 432, the rotating positioning structure 5, the positioning connecting rod 51, the positioning bearing 52, the gear driving mechanism 6, the rotating driving motor 61, the driving gear 62 and the passive gear 63.

Detailed Description

The utility model will be described in further detail with reference to the drawings and the detailed description.

As shown in fig. 1-5, a welding device for large pipe fitting elbow comprises an assembling cylinder 1, one end of the assembling cylinder 1 is provided with a welding protective cover 11, a welding connecting rod structure 2 is arranged in the assembling cylinder 1, one end of the welding connecting rod structure 2 is movably positioned through a circumferential positioning component 3 arranged at one end of the assembling cylinder 1 close to the welding protective cover 11, the other end of the welding connecting rod structure 2 is provided with a rotation pushing component 4, one end of the rotation pushing component 4 is connected with the circumferential positioning component 3 and provides pushing force, the other end of the rotation pushing component 4 is positioned through a rotation positioning structure 5 arranged at the circumferential inner side of the other end of the assembling cylinder 1, and the rotation pushing component 4 is driven by a gear driving mechanism 6.

The two ends of the welding connecting rod structure 2 are respectively positioned through the movable positioning structures 5 and the circumferential positioning assemblies 3 arranged at the two ends of the assembling cylinder body 1, and when the welding connecting rod structure is used, the driving force is provided through the gear driving mechanism 6, so that the rotation pushing assembly 4 pushes the circumferential positioning assemblies 3 to deform, and the welding connecting rod structure 2 moves to be close to or far away from a welding point.

The welding protective cover 11 is of a flexible transparent telescopic structure, is mainly used for preventing spark from splashing during welding, and has a protective effect.

Obviously, the welding connecting rod structure 2 comprises a welding head 21, one end of the welding head 21 is connected with a telescopic connecting rod 22, the telescopic connecting rod 22 is slidably inserted into a sliding connecting cylinder 23, a reset tension spring 24 is arranged in the sliding connecting cylinder 23, and an annular connecting groove 25 for connecting the circumferential positioning assembly 3 is formed in one end of the welding head 21, which is close to the telescopic connecting rod 22.

The return spring is used for enabling the telescopic connecting rod 22 to be in a contracted state and preventing the welding head 21 from being exposed out of the assembling cylinder body 1.

Further, the circumferential positioning assembly 3 comprises at least three rotating connectors 31, the rotating connectors 31 are circumferentially arranged in annular rotating grooves 32 on one end face of the assembling cylinder 1, the rotating connectors 31 are connected with positioning struts 33, one ends of the positioning struts 33, far away from the rotating connectors 31, are hinged with movable struts 34, and one ends of the movable struts 34, far away from the positioning struts 33, are connected with the welding heads 21 through annular connecting grooves 25.

When the welding head 21 rotates, the circumferential positioning assembly 3 synchronously rotates, and when the movable supporting rod 34 is stressed, the welding head 21 can be driven to stretch and retract.

Obviously, the rotary pushing assembly 4 includes an annular moving groove 41 provided on the periphery Xiang Waibi of the slide coupling cylinder 23, the annular moving groove 41 is rotatably provided with a movable push rod structure 42, and the movable push rod structure 42 is driven by a linkage driving structure 43 provided on the periphery outside of the slide coupling cylinder 23.

Further, the movable push rod structure 42 includes a passive push ring 421, a plurality of linkage push rods 422 connected to the movable supporting rod 34 are disposed on the passive push ring 421, and a pressing spring 423 is disposed on one side of the passive push ring 421. The pressing spring 423 is used to secure the contracted state of the movable strut 34.

Specifically, the linkage driving structure 43 includes a linkage ring body 431 disposed on a side of the passive push ring 421 away from the push spring 423, the linkage ring body 431 is connected to a linkage cylinder body 432 sleeved on the circumferential outer side of the sliding connection cylinder 23, and one end of the linkage cylinder body 432 is driven by the gear driving mechanism 6.

Here, the linkage cylinder 432 is of a telescopic structure, when the linkage ring 431 moves, the linkage cylinder 432 stretches synchronously, and the linkage ring 431 can limit the passive push ring 421.

More specifically, the gear drive mechanism 6 includes a rotation drive motor 61, a driving gear 62 is provided at an output end of the rotation drive motor 61, a driven gear 63 is provided at one end of the rotation pushing assembly 4, and the driven gear 63 is engaged with the driving gear 62.

The rotary positioning structure 5 includes a plurality of positioning links 51 with one ends connected to one end of the assembly cylinder 1, the other ends of the positioning links 51 are connected to positioning bearings 52, and the positioning bearings 52 are sleeved on the linkage cylinder 432.

The rotation positioning structure 5 is used for performing circumferential rotation supporting positioning on one end of the linkage cylinder 432, so as to ensure the stability of the sliding connection cylinder 23 penetrating through the linkage cylinder 432.

In detail, the annular moving groove 41 is formed at both ends thereof with a stopper 411, and the annular moving groove 41 is respectively provided with a sliding portion 412 and a screw portion 413.

The diameter of the screw 413 is smaller than that of the sliding part 412, so that the movement stroke of the link ring 431 can be limited.

Preferably, one end of the interlocking cylinder 432 is exposed to one end of the fitting cylinder 1, and one end of the slide coupling cylinder 23 is exposed to one end of the interlocking cylinder 432.

In summary, the principle of this embodiment is as follows: when the welding device is used, the welding joint 21 is positioned by the circumferential positioning assembly 3 arranged at the circumferential inner side of one end of the assembling cylinder 1, and the rotating positioning structure 5 arranged at the circumferential inner side of the other end of the assembling cylinder 1 supports and positions one end of the linkage cylinder 432, so that the stability of the sliding connecting cylinder 23 is ensured, and the welding connecting rod structure 2 is always kept at the axial center position of the assembling cylinder 1, so that shaking dislocation is prevented.

And, utilize the rotation driving motor 61 to drive the rotation of driving gear 62 and drive driven gear 63 synchronous rotation, when driven gear 63 rotates, the linkage ring body 431 screw thread rotates and moves and pulls the linkage barrel 432 to stretch, and the linkage ring body 431 promotes the passive push ring 421 to remove to make the linkage push rod 422 promote movable branch 34 deformation, when movable branch 34 deformation, soldered connection 21 atress concertina movement.

The specific embodiments described herein are offered by way of example only to illustrate the spirit of the utility model. Those skilled in the art may make various modifications or additions to the described embodiments or substitutions thereof without departing from the spirit of the utility model or exceeding the scope of the utility model as defined in the accompanying claims.

Although terms such as the fitting cylinder 1, the welding shield 11, the welding link structure 2, the welding head 21, the expansion link 22, the slide connection cylinder 23, the return tension spring 24, the annular connection groove 25, the circumferential positioning assembly 3, the rotational connection head 31, the annular rotation groove 32, the positioning strut 33, the movable strut 34, the rotational pushing assembly 4, the annular movement groove 41, the limiting portion 411, the sliding portion 412, the threaded portion 413, the movable push rod structure 42, the passive push ring 421, the linkage push rod 422, the pressing spring 423, the linkage driving structure 43, the linkage ring 431, the linkage cylinder 432, the rotational positioning structure 5, the positioning link 51, the positioning bearing 52, the gear driving mechanism 6, the rotational driving motor 61, the driving gear 62, the passive gear 63, etc. are used more herein, the possibility of using other terms is not excluded. These terms are used merely for convenience in describing and explaining the nature of the utility model; they are to be interpreted as any additional limitation that is not inconsistent with the spirit of the present utility model.

Claims

1. The utility model provides a welding set for large pipe fitting elbow, includes assembly barrel (1), assembly barrel (1) one end be equipped with welding protection casing (11), its characterized in that, assembly barrel (1) in be equipped with welding connecting rod structure (2), welding connecting rod structure (2) one end be close to the circumference locating component (3) activity location of welding protection casing (11) one end through setting up at assembly barrel (1), and welding connecting rod structure (2) other end is equipped with rotation pushing component (4), rotation pushing component (4) one end be connected with circumference locating component (3) and provide the thrust, and rotation pushing component (4) other end is fixed a position through setting up at the inside rotation locating structure (5) of assembly barrel (1) other end circumference, rotation pushing component (4) drive through gear drive mechanism (6).

2. The welding device for large pipe fittings elbows according to claim 1, characterized in that the welding connecting rod structure (2) comprises a welding head (21), one end of the welding head (21) is connected with a telescopic connecting rod (22), the telescopic connecting rod (22) is slidably inserted into a sliding connecting cylinder (23), a reset tension spring (24) is arranged in the sliding connecting cylinder (23), and one end of the welding head (21) close to the telescopic connecting rod (22) is provided with an annular connecting groove (25) for connecting a circumferential positioning assembly (3).

3. Welding device for large pipe fittings elbows according to claim 2, characterized in that the circumferential positioning assembly (3) comprises at least three rotating connectors (31), the rotating connectors (31) are circumferentially arranged in annular rotating grooves (32) on one end face of the assembling cylinder (1), the rotating connectors (31) are connected with positioning struts (33), one end of each positioning strut (33) away from the corresponding rotating connector (31) is hinged with a movable strut (34), and one end of each movable strut (34) away from the corresponding positioning strut (33) is connected with the corresponding welding head (21) through an annular connecting groove (25).

4. A welding device for large pipe elbows according to claim 3, characterized in that the rotary pushing assembly (4) comprises an annular moving groove (41) arranged on the circumferential outer wall of the sliding connecting cylinder (23), the annular moving groove (41) is rotatably provided with a movable push rod structure (42), and the movable push rod structure (42) is driven by a linkage driving structure (43) arranged on the circumferential outer side of the sliding connecting cylinder (23).

5. The welding device for large pipe fittings elbows according to claim 4, wherein the movable push rod structure (42) comprises a passive push ring (421), the passive push ring (421) is provided with a plurality of linkage push rods (422) connected with the movable support rods (34), and one side of the passive push ring (421) is provided with a pushing spring (423).

6. The welding device for large pipe elbows according to claim 5, wherein the linkage driving structure (43) comprises a linkage ring body (431) arranged on one side of the passive push ring (421) far away from the pushing spring (423), the linkage ring body (431) is connected with a linkage cylinder body (432) sleeved on the circumferential outer side of the sliding connecting cylinder (23), and one end of the linkage cylinder body (432) is driven by the gear driving mechanism (6).

7. The welding device for large pipe elbows according to claim 1, characterized in that the gear driving mechanism (6) comprises a rotation driving motor (61), a driving gear (62) is arranged at the output end of the rotation driving motor (61), a driven gear (63) is arranged at one end of the rotation pushing component (4), and the driven gear (63) is meshed with the driving gear (62).

8. The welding device for large pipe elbows according to claim 6, wherein the rotating and positioning structure (5) comprises a plurality of positioning connecting rods (51) with one ends connected with one end face of the assembling cylinder (1), the other ends of the positioning connecting rods (51) are connected with positioning bearings (52), and the positioning bearings (52) are sleeved on the linkage cylinder (432).

9. The welding device for large pipe elbows according to claim 4, wherein the two ends of the annular moving groove (41) are provided with limiting parts (411), and the annular moving groove (41) is respectively provided with a sliding part (412) and a threaded part (413).

10. The welding device for large pipe elbows according to claim 6, wherein one end of the linkage cylinder (432) is exposed to one end of the assembly cylinder (1), and one end of the sliding connection cylinder (23) is exposed to one end of the linkage cylinder (432).