CN219925058U

CN219925058U - Flange welding fixture

Info

Publication number: CN219925058U
Application number: CN202321229985.6U
Authority: CN
Inventors: 任军
Original assignee: Suzhou Suyuan Aideke Machinery Co ltd
Current assignee: Suzhou Suyuan Aideke Machinery Co ltd
Priority date: 2023-05-19
Filing date: 2023-05-19
Publication date: 2023-10-31
Anticipated expiration: 2033-05-19

Abstract

The utility model discloses a flange welding fixture, which comprises a flange fixing fixture and a steel pipe fixing fixture, wherein the flange fixing fixture is fixedly connected with the steel pipe fixing fixture, the flange fixing fixture and the steel pipe fixing fixture are coaxially arranged, the flange fixing fixture comprises a fixing disc, a fixing groove is formed in the upper surface of the fixing disc, the size and shape of the fixing groove are matched with those of a flange, the steel pipe fixing fixture comprises a positioning shaft and a fixing component, one end of the positioning shaft is arranged on the bottom surface of the fixing groove and is perpendicular to the bottom surface of the fixing groove, the positioning shaft and the fixing groove are coaxially arranged, the fixing component is hinged with the positioning shaft, a plurality of groups of fixing components are arranged on the surface of the positioning shaft in an annular array, and the fixing component can fix the inner wall of a steel pipe. The coaxial shaft arrangement of the positioning shaft and the fixing groove ensures that the flange and the steel pipe are coaxially arranged, and ensures that the central lines of the flange and the steel pipe are collinear in the welding process.

Description

Flange welding fixture

Technical Field

The utility model relates to the field of welding auxiliary devices, in particular to a flange welding fixture.

Background

Welding is an important way of joining two or more metal components together and has found wide application in the fields of machinery, shipping, aviation, chemical, vehicle and plumbing. Steel pipe and flange welding are an important part thereof. The steel pipe and the flange are welded together, so that the requirements of pressure and strength are met, and the steel pipe is attractive. Once the center lines of the steel pipe and the flange are not collinear (not meeting coaxiality), the attractiveness is affected, the difficulty in installing subsequent welding parts is increased, and even leakage or liquid leakage at the flange joint is possibly caused, so that safety accidents are caused. Under many conditions, the requirement of collineation of the centre lines (meeting coaxiality) is difficult to achieve, limited by the construction conditions.

Disclosure of Invention

The utility model mainly aims to provide a flange welding fixture according to the defects, which comprises a flange fixing fixture and a steel pipe fixing fixture, wherein the flange fixing fixture is fixedly connected with the steel pipe fixing fixture, the flange fixing fixture and the steel pipe fixing fixture are coaxially arranged, the flange fixing fixture comprises a fixing disc, a fixing groove is formed in the upper surface of the fixing disc, the size, the shape and the flange phase of the fixing groove are matched, the steel pipe fixing fixture comprises a positioning shaft and a fixing assembly, one end of the positioning shaft is arranged on the bottom surface of the fixing groove and is perpendicular to the bottom surface of the fixing groove, the positioning shaft and the fixing groove are coaxially arranged, the fixing assembly is hinged with the positioning shaft, the fixing assembly is provided with a plurality of groups of fixing assemblies, the fixing assemblies are distributed on the surface of the positioning shaft in an annular array, and the fixing assembly can fix the inner wall of the steel pipe.

The flange is fixed through the concentric shaft setting of locating shaft and fixed recess, and flange and fixed recess are coaxial to be set up, fix the steel pipe through locating shaft and fixed subassembly, and locating shaft and the coaxial setting of steel pipe, and then guaranteed that flange and steel pipe set up coaxially, ensure in welding process, flange and steel pipe central line collineation.

Further, the steel pipe fixing clamp comprises a telescopic shaft which is detachably connected with the positioning shaft,

further, one end of the positioning shaft far away from the fixing groove is provided with a connecting groove, an inner thread is arranged on the inner wall of the connecting groove, one end of the telescopic shaft close to the positioning shaft is provided with an outer thread, and at least part of the telescopic shaft is structurally contained in the connecting groove and is connected with the positioning shaft through the inner thread and the outer thread.

Further, the fixing component comprises a fixing rod and a push-pull rod, one end of the fixing rod is hinged with the positioning shaft, and the other end of the fixing rod is hinged with the push-pull rod; the push-pull rod is hinged with the telescopic shaft at one end far away from the fixed rod, the push-pull rod, the positioning shaft and the telescopic shaft form a triangle, and the coaxial positioning shaft and the telescopic shaft form the bottom edge of the triangle.

Further, the outer surface of the telescopic shaft is provided with a circumferential annular groove, a ring is arranged in the annular groove, one end of the push-pull rod, which is close to the telescopic shaft, is provided with a through hole, and the ring penetrates through the through hole to connect the telescopic shaft and the push-pull rod.

Further, the fixing assembly further comprises an extrusion part, the extrusion part is integrally connected with one end of the fixing rod, which is far away from the positioning shaft, and one end of the extrusion part, which is far away from the fixing rod, is a spherical curved surface.

Further, the fixing assembly is provided with five or six groups.

Further, one end of the telescopic shaft, which is far away from the positioning shaft, is provided with a rotating part, and the rotating part is a polygonal cylinder.

Further, the flange fixing clamp is arranged on the upper surface of the workbench and is fixedly connected with the workbench.

The beneficial effects are that: the flange is fixed through the concentric shaft setting of locating shaft and fixed recess, and flange and fixed recess are coaxial to be set up, fix the steel pipe through locating shaft and fixed subassembly, and locating shaft and just coaxial setting have then ensured that flange and steel pipe set up coaxially, ensure in welding process, flange and steel pipe central line collineation.

Drawings

The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the utility model.

In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings required for the description of the embodiments will be briefly described below, and it is apparent that the drawings in the following description are only some embodiments of the present utility model, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a perspective view of a flange welding fixture according to an embodiment of the present utility model;

FIG. 2 is a perspective view of a flange welding fixture after flange and steel pipe removal according to an embodiment of the present utility model;

FIG. 3 is a cross-sectional view of a flange welding fixture after flange and steel pipe removal in accordance with an embodiment of the present utility model;

fig. 4 is a partial enlarged view of an embodiment of the present utility model.

In the figure: 1. a work table; 2. a flange fixing clamp; 21. a fixed plate; 22. a fixing groove; 3. a steel pipe fixing clamp; 31. positioning a shaft; 311. a connection groove; 32. a telescopic shaft; 321. an external thread; 322. a rotating part; 323. an annular groove; 33. a fixing assembly; 331. a fixed rod; 332. a push-pull rod; 333. an extrusion part; 34. a circular ring; 4. a flange; 5. and (3) a steel pipe.

Detailed Description

In order that the above objects, features and advantages of the utility model will be readily understood, a more particular description of the utility model will be rendered by reference to the appended drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present utility model. The present utility model may be embodied in many other forms than described herein and similarly modified by those skilled in the art without departing from the spirit of the utility model, whereby the utility model is not limited to the specific embodiments disclosed below.

Referring to fig. 1, a flange welding jig in this embodiment includes a flange fixing jig 2 and a steel pipe fixing jig 3, the flange fixing jig 2 is provided on a work table 1, the flange fixing jig 2 is used for fixing a flange 4, the steel pipe fixing jig 3 is used for fixing a steel pipe 5, the flange fixing jig 2 with the steel pipe fixing jig 5 is fixedly connected, and the flange fixing jig 2 with the steel pipe fixing jig 5 is coaxially provided, and then the flange 4 and the steel pipe 5 are fixed in relative positions through the steel pipe fixing jig 5 and the flange fixing jig 2, and after fixing, the flange 4 and the steel pipe 5 are welded.

Referring to fig. 2-4, in some embodiments, the flange fixing jig 2 includes a fixing plate 21, a fixing groove 22 is formed on an upper surface of the fixing plate 21, and the size and shape of the fixing groove 22 are matched with those of the flange 4, and the flange 4 is fixed by the fixing groove 22.

In some embodiments, the steel pipe fixing clamp 5 includes a positioning shaft 31 and a telescopic shaft 32, one end of the positioning shaft 31 is disposed on the bottom surface of the fixing groove 22 and is disposed perpendicular to the bottom surface of the fixing groove 22, and the positioning shaft 31 and the fixing groove 22 are disposed concentrically.

In some embodiments, the telescopic shaft 32 is detachably connected with the positioning shaft 31, a connecting groove 311 is arranged at one end of the positioning shaft 31 far away from the fixing groove 22, an internal thread is arranged on the inner wall of the connecting groove 311, an external thread 321 is arranged at one end of the telescopic shaft 32 close to the positioning shaft 31, and at least part of the telescopic shaft 32 is structurally contained in the connecting groove 311 and is connected with the connecting shaft through the internal thread and the external thread 321.

In some embodiments, the steel tube fixing clamp 3 further comprises a fixing assembly 33, the fixing assembly 33 comprises a fixing rod 331 and a push-pull rod 332, one end of the fixing rod 331 is hinged to the positioning shaft 31, and the other end of the fixing rod 331 is hinged to the push-pull rod 332; the push-pull rod 332 is hinged to the telescopic shaft 32 at one end far away from the fixed rod 331, the push-pull rod 332, the positioning shaft 31 and the telescopic shaft 32 form a triangle, and the coaxial positioning shaft 31 and the telescopic shaft 32 form the bottom of the triangle. Because locating shaft 31 and telescopic shaft 32 pass through threaded connection, through rotatory telescopic shaft 32, adjust telescopic shaft 32 and insert the degree of depth of locating shaft 31, and then adjust the length of the triangle-shaped base of constituteing by telescopic shaft 32 and locating shaft 31, through the regulation of base length, and then adjust the contained angle of dead lever 331 and base, can adjust the inclination of dead lever 331, the inclination of dead lever 331 is bigger, and dead lever 331 is close to the inner wall of steel pipe 5 more, dead lever 331 and steel pipe 5 butt at last, and dead lever 331 extrudees steel pipe 5 inner wall, and then fixes steel pipe 5.

In some embodiments, the outer surface of the telescopic shaft 32 is provided with a circumferential annular groove 323, a ring 34 is disposed in the annular groove 323, a through hole is disposed at one end of the push-pull rod 332 near the telescopic shaft 32, and the ring 34 passes through the through hole to connect the telescopic shaft 32 and the push-pull rod 332.

In some embodiments, a rotating portion 322 is disposed at an end of the telescopic shaft 32 away from the positioning shaft 31, and the rotating portion 322 is a polygonal cylinder. By the provision of the rotating portion 322, the telescopic shaft 32 is conveniently rotated.

In some embodiments, the fixing assembly 33 further includes a pressing portion 333, where the pressing portion 333 and an end of the fixing rod 331 remote from the positioning shaft 31 are integrally connected, and an end of the pressing portion 333 remote from the positioning shaft is spherically curved, so as to prevent the pressing portion 333 from scratching the inner surface of the steel pipe 5.

In some embodiments, the fixing assemblies 33 are provided with a plurality of groups, and the plurality of groups of fixing assemblies 33 are arranged on the surface of the positioning shaft 31 in a ring array. By the arrangement of the plurality of fixing members 33, the inner wall of the steel pipe 5 is pressed, and the steel pipe 5 is fixed.

The using process comprises the following steps: the flange 4 is placed in the fixing groove 22, and the flange 4 is fixed through the fixing disc 21; then, the steel pipe 5 is sleeved on the steel pipe fixing clamp 5, the lower part of the steel pipe is abutted against the flange 4, and the steel pipe 5 is supported by the flange 4; the telescopic shaft 32 is rotated, the depth of inserting the telescopic shaft 32 into the positioning shaft 31 is increased, the fixed rod 331 drives the extrusion parts 333 to perform diffusion motion to the periphery, the extrusion parts 333 are abutted on the inner wall of the steel pipe 5, and the extrusion parts 333 extrude from the inner part of the steel pipe 5 to the outer acting force, so that the steel pipe 5 is fixed. The positioning shaft 31 and the telescopic shaft 32 are coaxially arranged, so that the steel pipe 5 and the flange 4 are coaxially arranged, the central lines of the steel pipe 5 and the flange 4 are collinear, and finally the fixed flange and the steel pipe are welded.

In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present utility model.

The above embodiments are only for illustrating the technical concept and features of the present utility model, and are intended to enable those skilled in the art to understand the content of the present utility model and to implement the same, but are not intended to limit the scope of the present utility model, and all equivalent changes or modifications made according to the spirit of the present utility model should be included in the scope of the present utility model.

Claims

1. The utility model provides a flange welding jig, its characterized in that, including flange mounting fixture (2) and steel pipe mounting fixture (3), flange mounting fixture (2) with steel pipe mounting fixture (3) fixed connection, and flange mounting fixture (2) with steel pipe mounting fixture (3) coaxial setting, flange mounting fixture (2) include mounting dish (21), mounting dish (21) upper surface is provided with fixed recess (22), the size, shape and the flange (4) looks adaptation of mounting recess (22), steel pipe mounting fixture (3) include locating shaft (31) and fixed subassembly (33), the one end of locating shaft (31) sets up the bottom surface of fixed recess (22), and with the bottom surface of fixed recess (22) sets up perpendicularly, locating shaft (31) with fixed recess (22) concentric shaft sets up, fixed subassembly (33) with locating shaft (31) are articulated, fixed subassembly (33) are provided with the multiunit, multiunit fixed subassembly (33) become annular array and arrange locating shaft (31) inner wall (33) can fix steel pipe (5).

2. Flange welding fixture according to claim 1, characterized in that the steel tube fixing fixture (3) comprises a telescopic shaft (32), the telescopic shaft (32) and the positioning shaft (31) being detachably connected.

3. Flange welding fixture according to claim 2, characterized in that the end of the positioning shaft (31) remote from the fixing groove (22) is provided with a connecting groove (311), the inner wall of the connecting groove (311) is provided with an internal thread, the end of the telescopic shaft (32) close to the positioning shaft (31) is provided with an external thread (321), at least part of the telescopic shaft (32) is accommodated in the connecting groove (311), and is connected with the positioning shaft (31) through the internal thread and the external thread (321).

4. A flange welding jig according to claim 3, characterized in that the fixing assembly (33) comprises a fixing rod (331) and a push-pull rod (332), one end of the fixing rod (331) being hinged to the positioning shaft (31), the other end being hinged to the push-pull rod (332); the push-pull rod (332) is far away from one end of the fixed rod (331) and is hinged with the telescopic shaft (32), the fixed rod (331), the push-pull rod (332), the positioning shaft (31) and the telescopic shaft (32) form a triangle, and the coaxial positioning shaft (31) and the telescopic shaft (32) form the bottom edge of the triangle.

5. The flange welding fixture according to claim 4, wherein a circumferential annular groove (323) is formed in the outer surface of the telescopic shaft (32), a circular ring (34) is arranged in the annular groove (323), a through hole is formed in one end, close to the telescopic shaft (32), of the push-pull rod (332), and the circular ring (34) penetrates through the through hole to connect the telescopic shaft (32) and the push-pull rod (332).

6. The flange welding jig according to claim 5, wherein the fixing assembly (33) further includes a pressing portion (333), the pressing portion (333) and an end of the fixing lever (331) remote from the positioning shaft (31) are integrally connected, and an end of the pressing portion (333) remote from the fixing lever (331) is spherically curved.

7. A flange welding jig according to claim 6, characterized in that the fixing assembly (33) is provided with five or six groups.

8. The flange welding fixture according to claim 7, characterized in that one end of the telescopic shaft (32) remote from the positioning shaft (31) is provided with a rotating part (322), and the rotating part (322) is a polygonal cylinder.

9. The flange (4) welding jig according to claim 8, further comprising a work table (1), wherein the flange fixing jig (2) is provided on an upper surface of the work table (1) and is fixedly connected to the work table (1).