CN212330160U

CN212330160U - Large-scale thin wall box butt girth welding jig

Info

Publication number: CN212330160U
Application number: CN202020708425.9U
Authority: CN
Inventors: 花彤历; 贺仁凤; 王宗杰; 奂玖平; 苏虹; 黄勇; 李章虎
Original assignee: Hubei Sanjiang Aerospace Wanfeng Technology Development Co Ltd
Current assignee: Hubei Sanjiang Aerospace Wanfeng Technology Development Co Ltd
Priority date: 2020-05-01
Filing date: 2020-05-01
Publication date: 2021-01-12
Anticipated expiration: 2030-05-01

Abstract

The utility model discloses a large-scale thin wall box butt joint girth welding jig, including platform and leading truck, the bottom of leading truck is connected with the last fixed surface of platform, and the fixed block has been cup jointed to the fixed surface of leading truck, and the upper surface of platform is provided with the outside grudging post, and the top of outside grudging post is provided with a supporting beam, and the both ends of a supporting beam are connected with the fixed surface of fixed block, and one side that the leading truck was kept away from to the outside grudging post is provided with violently compressing tightly roof beam and inside bearing structure respectively, and violently compress tightly the roof beam and be located inside bearing structure. Through setting up inside bearing structure, outside grudging post and jack, reached and to the box step up reliable and convenient operation, practiced thrift weld time's effect when guaranteeing the welding quality of box circumferential weld, solved current method and after welding many times, welding deformation is great, has the dislocation phenomenon during the case section concatenation, unable perfect butt joint, leads to the fact the problem of certain difficulty for the circumferential weld welding. The method is suitable for producing large thin-wall boxes.

Description

Large-scale thin wall box butt girth welding jig

Technical Field

The utility model relates to a welding specifically is a large-scale thin wall box butt joint girth welding jig.

Background

In various industrial fields, large thin-wall boxes are seen everywhere, and are particularly common in the military industry field, and various square-barrel type and cylinder type launching structures all adopt thin-wall box structures, and the structures have the advantages of convenience in forming, simple structure, good mechanical property and the like.

The large box body is generally manufactured in a welding mode at the present stage, and due to the limitation of the material plate width and the machining range, the machining procedure comprises the steps of firstly selecting two U-shaped bending pieces to be spliced into a square cylindrical box section structure, then butting the box sections pairwise, and forming an annular welding seam at the spliced and welded joint; the method has the advantages of convenience in manufacturing, low cost and the like, but due to repeated welding, the welding deformation is large, the box sections are dislocated during splicing, perfect butt joint cannot be achieved, and certain difficulty is caused to girth welding, so that the large-sized thin-wall box butt-joint girth welding fixture is designed and manufactured, and the fixture has the characteristics of convenience in operation, flexibility, practicability, low manufacturing cost and the like, and is used for solving the problems existing in the thin-wall box butt-joint girth.

Disclosure of Invention

An object of the utility model is to provide a large-scale thin wall box butt girth welding jig to solve the problem that proposes in the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme:

the utility model provides a large-scale thin wall box butt joint girth welding jig, includes platform and leading truck, the bottom of leading truck is connected with the last fixed surface of platform, and the fixed block has been cup jointed to the fixed surface of leading truck, and the upper surface of platform is provided with outside grudging post, and the top of outside grudging post is provided with a supporting beam, and the both ends of a supporting beam are connected with the fixed surface of fixed block, and one side that the leading truck was kept away from to outside grudging post is provided with violently compress tightly roof beam and inner support structure respectively, and violently compress tightly the roof beam and be located inner support structure directly over, and the last fixed surface of violently compressing tightly the roof beam is connected with the.

As a further aspect of the present invention: the equal division of leading truck and outside grudging post do not quantity be two, and two leading trucks and outside grudging posts all use the vertical axis of platform to be axisymmetric setting as the symmetry axis, and between two leading trucks, the opposite face of two outside grudging posts all is connected with inner support structure's fixed surface.

As a further aspect of the present invention: the internal support structure comprises a frame, a top plate, a connecting angle support, adjusting screws and bolts, one end of each adjusting screw, which is close to the frame, penetrates through the frame and extends to the inside of the top plate and the connecting angle support, the surface of each connecting angle support and the two ends of the top plate are movably connected, the frame is fixedly connected to the opposite surfaces of the top plate and the connecting angle support through the adjusting screws, the number of the connecting angle supports and the number of the top plates are four, the four connecting angle supports and the four top plates form a square structure, the four connecting angle supports are located at the corner positions of the square structure, the bolts are inserted into the front surfaces of the connecting angle supports, the positions, corresponding to the bolts, of the adjusting screws are provided with annular grooves, and.

As a further aspect of the present invention: the shape of frame is octagonal structure, and eight sides of frame all are provided with the screw hole, and adjusting screw threaded connection is in the inside of screw hole, and the thickness of frame is 20 mm.

As a further aspect of the present invention: and one side of the top plate, which corresponds to the frame, is provided with a blind hole, and one end of the adjusting screw is in threaded connection with the inner wall of the blind hole.

As a further aspect of the present invention: the transverse compression beam is made of steel, the flatness of a binding surface of the transverse compression beam is less than or equal to 0.1mm, and a long circular groove is formed in the middle position of the upper surface of the transverse compression beam.

Compared with the prior art, the beneficial effects of the utility model are that: through setting up inside bearing structure, outside grudging post and jack, at the inside bearing structure of box butt joint circumferential weld department internally mounted, adjusting screw, make both sides butt joint face laminate outside grudging post completely, the inside adjusting screw that passes through in top, the outside of box withstands groove compact beam and a supporting beam through taking the jack and compresses tightly it, through inside outside combined action, guarantee that top butt joint face of weld laminates completely, weld outside through welding tool, the two-sided shaping of inside welding seam, it is reliable to have reached box step up, practice thrift welding time and easy operation's effect when guaranteeing the welding quality of box circumferential weld, solved current method after welding many times, welding deformation is great, there is the dislocation phenomenon during the concatenation of case section, unable perfect butt joint, for the circumferential weld joint welding lead to the fact the problem of certain difficulty.

Drawings

FIG. 1 is a front view of a butt girth welding fixture for large thin-walled boxes.

FIG. 2 is a schematic view of the overall structure of an internal support structure in a butt girth welding fixture for large thin-walled boxes.

FIG. 3 is a schematic structural diagram of a top plate in a butt girth welding fixture for a large thin-wall box.

FIG. 4 is a top view of the top plate of FIG. 3 in a butt girth welding fixture for large thin-walled boxes.

FIG. 5 is a sectional view of the whole structure of a connecting angle support in a butt girth welding fixture for large thin-wall boxes.

FIG. 6 is a bottom view of the connecting corner support of FIG. 5 in a butt girth welding fixture for large thin-walled boxes.

FIG. 7 is a schematic view of the overall structure of an adjusting screw in a butt girth welding fixture for large thin-walled boxes.

As shown in the figure: 1. a platform; 2. a guide frame; 3. a fixed block; 4. an outer vertical frame; 5. a support beam; 6. a transverse compression beam; 7. an internal support structure; 701. a frame; 702. a top plate; 703. connecting the angle supports; 704. an adjusting screw; 705. a bolt; 8. a jack; 9. and (4) blind holes.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-7, in the embodiment of the present invention, a large-sized thin-walled box butt girth welding fixture comprises a platform 1 and two guide frames 2, the number of the guide frames 2 and the number of the outer vertical frames 4 are two, the two guide frames 2 and the outer vertical frames 4 are both arranged in axial symmetry with the vertical axis of the platform 1 as the symmetry axis, and are symmetrically arranged to make the supporting beam 5 stably move and more easily fix the box and attach to the box, the bottom of the guide frame 2 is fixedly connected with the upper surface of the platform 1, the fixed block 3 is sleeved on the surface of the guide frame 2, the outer vertical frame 4 is arranged on the upper surface of the platform 1, the two outer vertical frames 4 are positioned between the two guide frames 2, the opposite surfaces of the two outer vertical frames 4 are fixedly connected with the surface of the inner supporting structure 7, the size of the welded box can be adjusted by the supporting structure, so as to facilitate the attachment and the stability of the inner and outer sides, the top of the outer vertical frame 4 is provided with a supporting beam 5, two ends of the supporting beam 5 are fixedly connected with the surface of the fixed block 3, one side of the outer vertical frame 4, which is far away from the guide frame 2, is respectively provided with a transverse pressing beam 6 and an inner supporting structure 7, the transverse pressing beam 6 is made of steel, the steel is made of common steel, the practicability is wide, materials can be found and set more easily, the planeness of the binding surface of the transverse pressing beam 6 is less than or equal to 0.1mm, the purpose of binding is achieved through the planeness of the surface of a setter, a box body needs to be bound and fixed by less than or equal to 0.1mm, a long circular groove is arranged at the position in the middle of the upper surface of the transverse pressing beam 6, the inner supporting structure 7 comprises a frame 701, a top plate 702, a connecting angle support 703, an adjusting screw and a bolt 705, the shape of the frame 701 is an octagonal structure, eight side surfaces of the frame 701 are all provided, the number of the adjusting screws 704 is several, two adjusting screws 704 are arranged on the long side of the frame 701, one adjusting screw 704 is arranged on the short side, so that the top plate 702 and the connecting angle supports 703 can be conveniently adjusted, the thickness of the frame 701 is 20mm, through tests, the thickness is the optimal setting thickness, not only the thickness, a blind hole 9 is arranged on one side of the top plate 702 corresponding to the frame 701, one end of the adjusting screw 704 is in threaded connection with the inner wall of the blind hole 9, the top plate 702 is fixed, one end of the adjusting screw 704 close to the frame 701 penetrates through the frame 701 and extends into the top plate 702 and the connecting angle supports 703, the surface of the connecting angle supports 703 is movably connected with two ends of the top plate 702, the frame 701 is fixedly connected to the opposite surfaces 703 of the top plate 702 and the connecting angle supports by the adjusting screws 704, the number of the connecting angle supports 703 and the top plate 702 is four, and the four connecting angle, the four connecting angle supports 703 are located at the corner positions of the square structure, the bolts 705 are inserted in the front faces of the connecting angle supports 703, annular grooves are formed in the positions, corresponding to the bolts 705, of the adjusting screws 704, the bolts 705 are used for limiting the adjusting screws 704 inside the connecting angle supports 703, the adjusting screws 704 can only rotate inside the connecting angle supports 703, the adjusting screws 704 are fixedly connected inside the connecting angle supports 703 through the bolts 705, the transverse compression beam 6 is located right above the internal supporting structure 7, the upper surface of the transverse compression beam 6 is fixedly connected with the jacks 8, the jacks 8 move the supporting beams 5, the lower surfaces of the jacks and the upper surfaces of the internal supporting structure 7 are fixedly attached and fixed to the box body from the inner side and the outer side, and the tops of the jacks 8 are fixedly connected with the lower surfaces of the supporting beams 5.

When using, place inside bearing structure 7 and support required welding box in the inside of required welding box, then make angle of connection support 703 and roof 702 and the laminating of required welding box through adjusting screw 704, finally make the side and the laminating of outside grudging post 4 of required welding box, then adjust the adjusting screw 704 at frame 701 top, jack 8 promotes supporting beam 5 cigarette outside grudging post 4's surface downwards this moment, inside and outside combined action is fixed with required welding box, guarantee that the top butt joint face of welding box laminates completely, then weld the box externally, inside welding seam double-sided molding, this design adopts commonly used, simple structure's connected mode and closing device, have and step up characteristics such as reliable, convenient operation, low cost, the welding quality of effectual assurance box circumferential weld, and the time is saved. Compared with the traditional welding fixture, the welding fixture has the advantages of good welding effect, high economic benefit and convenience in popularization.

Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the invention, and the following claims are therefore to be read in this light of the appended claims.

Claims

1. A large-scale thin-wall box butt girth welding fixture comprises a platform (1) and a guide frame (2), the device is characterized in that the bottom of the guide frame (2) is fixedly connected with the upper surface of the platform (1), the fixed block (3) is sleeved on the surface of the guide frame (2), the outer side vertical frame (4) is arranged on the upper surface of the platform (1), the supporting beam (5) is arranged at the top of the outer side vertical frame (4), two ends of the supporting beam (5) are fixedly connected with the surface of the fixed block (3), the transverse compression beam (6) and the inner supporting structure (7) are respectively arranged on one side, far away from the guide frame (2), of the outer side vertical frame (4), the transverse compression beam (6) is located right above the inner supporting structure (7), the upper surface of the transverse compression beam (6) is fixedly connected with a jack (8), and the top of the jack (8) is fixedly connected with the lower surface of the supporting beam (5).

2. The butt girth welding fixture for the large thin-walled box body according to claim 1, wherein the number of the guide frames (2) and the number of the outer side vertical frames (4) are two, the two guide frames (2) and the outer side vertical frames (4) are arranged in an axisymmetric manner by taking a vertical axis of the platform (1) as a symmetry axis, the two outer side vertical frames (4) are arranged between the two guide frames (2), and opposite surfaces of the two outer side vertical frames (4) are fixedly connected with the surface of the inner supporting structure (7).

3. The butt girth welding fixture for the large thin-walled box body according to claim 1, wherein the internal supporting structure (7) comprises a frame (701), a top plate (702), connecting angle supports (703), adjusting screws (704) and bolts (705), one end of each adjusting screw (704) close to the frame (701) penetrates through the frame (701) and extends to the insides of the top plate (702) and the connecting angle supports (703), the surface of each connecting angle support (703) is movably connected with two ends of the top plate (702), the frame (701) is fixedly connected to the opposite surfaces of the top plate (702) and the corresponding connecting angle supports (703) through the adjusting screws (704), the number of the connecting angle supports (703) and the top plate (702) is four, the four connecting angle supports (703) and the four top plates (702) form a square structure, and the four connecting angle supports (703) are located at corner positions of the square structure, the bolt (705) is inserted in the front face of the connecting angle support (703), an annular groove is formed in the position, corresponding to the bolt (705), of the adjusting screw (704), and the adjusting screw (704) is fixedly connected inside the connecting angle support (703) through the bolt (705).

4. The butt girth welding fixture for the large thin-walled box body according to claim 3, wherein the shape of the frame (701) is an octagonal structure, the eight sides of the frame (701) are provided with threaded holes, the adjusting screws (704) are screwed inside the threaded holes, and the thickness of the frame (701) is 20 mm.

5. The butt girth welding fixture for the large thin-walled box body according to claim 3, wherein a blind hole (9) is formed in one side of the top plate (702) corresponding to the frame (701), and one end of the adjusting screw (704) is in threaded connection with the inner wall of the blind hole (9).

6. The butt girth welding fixture for the large thin-wall box body according to claim 1, wherein the transverse pressing beam (6) is made of steel, the flatness of a binding surface of the transverse pressing beam (6) is less than or equal to 0.1mm, and a long circular groove is formed in the middle position of the upper surface of the transverse pressing beam (6).