CN219465051U - Horizontal friction stir welding device - Google Patents

Abstract

The utility model provides a horizontal friction stir welding device, comprising: the device comprises a base assembly, a front seat assembly, a rear seat assembly, a main beam and an upper pressing mechanism; the base assembly includes a base beam; one end of the front seat assembly and one end of the rear seat assembly are respectively arranged at two ends of the base beam in the length direction; the other end of the front seat assembly and the other end of the rear seat assembly are respectively arranged at two ends of the main beam in the length direction so as to support the main beam; the upper pressing mechanism is used for pressing the storage box barrel section on the main beam so as to weld the storage box barrel section. The device compresses the welding edges of the to-be-welded storage box wall plate in the length direction on the main beam, the main beam supports the upper part of the storage box wall plate, and the base component supports the lower part of the storage box wall plate, so that longitudinal seam welding of the integral storage box barrel section is realized, and the problem that a plurality of girth welds are required to be assembled and welded for the storage box is solved.

Description

Horizontal friction stir welding device

Technical Field

The utility model relates to the field of welding, in particular to a horizontal friction stir welding device.

Background

At present, the length of a single section of an active rocket tank is generally not more than two meters, and the existing tank section is manufactured by adopting four 1/4 arc-shaped wall plates to be processed through vertical friction stir welding. In order to meet the requirements of the storage tank on performance parameters and the like, the storage tank barrel sections are usually welded by adopting a plurality of sections of short barrel sections in a combined way, and the long barrel sections are spliced into the required long barrel sections. Therefore, the tank needs to be assembled and welded with a plurality of girth welds. However, the assembly and adjustment difficulty of the circumferential weld of the storage tank is high, the welding efficiency and welding quality are low, and the method is a bottleneck process for producing and manufacturing the whole storage tank.

In order to reduce the girth welding of the storage tank and realize the integral welding, the design of the horizontal friction stir welding device is particularly important.

Disclosure of Invention

The utility model aims to overcome the defects of the prior art and provides a horizontal friction stir welding device.

The utility model provides a horizontal friction stir welding device, comprising: the device comprises a base assembly, a front seat assembly, a rear seat assembly, a main beam and an upper pressing mechanism; the base assembly includes a base beam; one end of the front seat assembly and one end of the rear seat assembly are respectively arranged at two ends of the base beam in the length direction; the other end of the front seat assembly and the other end of the rear seat assembly are respectively arranged at two ends of the main beam in the length direction so as to support the main beam; the upper pressing mechanism is used for pressing the storage box barrel section on the main beam so as to weld the storage box barrel section.

According to one embodiment of the utility model, the base beam further comprises a lower beam assembly disposed between the main beam and the base beam; the lower beam assembly comprises a lower beam and a support assembly; the two ends of the lower cross beam in the length direction are fixedly connected with the front seat assembly and the rear seat assembly respectively; the support components are arranged at two ends of the width direction of the lower cross beam and extend outwards to support the storage tank barrel section.

According to one embodiment of the utility model, the support assembly includes a plurality of side support bars and barrel section support bars; one end of each side supporting rod is fixedly connected with the lower cross beam, and the other end of each side supporting rod is connected with the corresponding barrel section supporting rod.

According to one embodiment of the utility model, each of the side support bars comprises two hollow bars; the two hollow rods are connected in a telescopic way through threads.

According to one embodiment of the utility model, the upper pressing mechanism comprises two clamp beams, wherein the clamp beams are arranged along the length direction of the main beam, and two ends of the length direction of the clamp beams are fixedly connected with the main beam; the clamp beam is provided with a plurality of groups of quick-press clamps along the length direction; the two clamp beams are respectively used for compacting the welding parts of the two storage tank barrel sections; and the plurality of groups of quick-pressing clamps are used for pressing the storage tank barrel sections to the main cross beam along the length direction of the clamp beam.

According to one embodiment of the utility model, the quick press clamp comprises a front end pressing part for pressing the tank section; the front end pressing part comprises a pressing rod and a pressing seat; the compressing rod is in threaded connection with the compressing seat, so that the compressing seat moves along the length direction of the compressing rod, and the extrusion degree of the compressing seat on the storage box barrel section is adjusted.

According to one embodiment of the utility model, the clamp beam is of a hollowed-out structure so as to reduce the weight of the clamp beam.

According to one embodiment of the utility model, a plurality of profiling supporting seats are arranged at two ends of the base beam in the width direction; the upper side surfaces of the profiling supporting seats are arc-shaped so as to adaptively support the storage tank section.

According to one embodiment of the utility model, a plurality of first vertical support rods are arranged between the main beam and the lower beam to support the main beam; a plurality of second vertical support rods are detachably arranged between the base cross beam and the lower cross beam so as to support the lower cross beam.

According to one embodiment of the utility model, main beam adjusting base plates are respectively arranged between the front seat assembly and the main beam and between the rear seat assembly and the main beam; the height of the main beam adjusting backing plate is adjustable, so that the two ends of the length direction of the main beam are adjusted to be horizontal.

According to the horizontal friction stir welding device, the welding edges of the wall plates of the storage tank to be welded in the length direction are pressed on the main cross beam, the main cross beam supports the upper part of the wall plates, and the base component supports the lower part of the wall plates, so that the longitudinal seam welding of the whole storage tank barrel section is realized, and the problem that a plurality of girth welds of the storage tank are required to be assembled and welded is solved.

It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the scope of the utility model, as claimed.

Drawings

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

FIG. 1 is a perspective view of a horizontal friction stir welding apparatus according to one embodiment of the present utility model;

FIG. 2 is an elevation view of a horizontal friction stir welding apparatus according to one embodiment of the present utility model;

FIG. 3 is a top view of a horizontal friction stir welding apparatus according to one embodiment of the present utility model;

FIG. 4 is a left side view of an upper compression mechanism according to yet another embodiment of the present utility model;

FIG. 5 is a flow chart illustrating the use of a horizontal friction stir welding apparatus according to one embodiment of the present utility model.

Reference numerals illustrate:

the device comprises a 1-base assembly, a 2-rear seat assembly, a 3-lower beam assembly, a 4-front seat assembly, a 5-main beam, a 6-upper pressing mechanism, a 7-pressing rod, an 8-base beam, a 9-pressing seat, a 10-profiling supporting seat, an 11-clamp beam, a 12-quick pressing clamp, a 13-adjusting base plate, a 14-side supporting rod, a 15-barrel section supporting rod, a 16-first vertical supporting rod, a 17-second vertical supporting rod and a 18-lower beam.

Detailed Description

Features and exemplary embodiments of various aspects of the present utility model will be described in detail below, and in order to make the objects, technical solutions and advantages of the present utility model more apparent, the present utility model will be described in further detail below with reference to the accompanying drawings and the detailed embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the principles of the present utility model and not in limitation thereof. In addition, the mechanical components in the drawings are not necessarily to scale. For example, the dimensions of some of the structures or regions in the figures may be exaggerated relative to other structures or regions to help facilitate an understanding of embodiments of the present utility model.

The directional terms appearing in the following description are all directions shown in the drawings and do not limit the specific structure of the embodiment of the present utility model. In the description of the present utility model, it should be noted that, unless otherwise indicated, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be directly connected or indirectly connected through an intermediate medium. The specific meaning of the above terms in the present utility model can be understood as appropriate by those of ordinary skill in the art.

Furthermore, the terms "comprises," "comprising," "includes," "including," "having," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a structure or assembly that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such structure, assembly. Without further limitation, an element defined by the phrase "comprising … …" does not exclude the presence of other like elements in an article or apparatus that comprises the element.

Spatially relative terms such as "under", "below", "under …", "low", "above", "over …", "high", and the like, are used for convenience of description to explain the positioning of one element relative to a second element and to represent different orientations of the device in addition to those shown in the figures. In addition, for example, "one element above/below another element" may mean that two elements are in direct contact, or that other elements are present between the two elements. Furthermore, terms such as "first," "second," and the like, are also used to describe various elements, regions, sections, etc., and do not specifically address the order or sequence and should not be taken as limiting. Like terms refer to like elements throughout the description.

In describing the present utility model hereinafter, it is possible that in a certain scenario, only "rocket", "carrier rocket", "spacecraft", "space vehicle" or "missile" is used, which is merely for convenience of description, and its meaning is not limited to the specific words used. Typically, the rockets of the present utility model include both space vehicles for carrying satellites or spacecraft or other detectors, and weapons such as various types of missiles, rockets, etc. for carrying military loads, and similar products capable of delivering payloads into the air. When explaining the specific words, the person skilled in the art shall not limit the rocket to only one of the carrier rocket or the missile according to the specific words used for describing the scene, so as to reduce the protection scope of the utility model.

It will be apparent to one skilled in the art that the present utility model may be practiced without some of these specific details. The following description of the embodiments is merely intended to provide a better understanding of the utility model by showing examples of the utility model.

FIG. 1 is a perspective view of a horizontal friction stir welding apparatus according to one embodiment of the present utility model; FIG. 2 is an elevation view of a horizontal friction stir welding apparatus according to one embodiment of the present utility model; FIG. 3 is a top view of a horizontal friction stir welding apparatus according to one embodiment of the present utility model; FIG. 4 is a left side view of an upper compression mechanism according to yet another embodiment of the present utility model; FIG. 5 is a flow chart illustrating the use of a horizontal friction stir welding apparatus according to one embodiment of the present utility model.

As shown in fig. 1, the present utility model provides a horizontal friction stir welding apparatus, comprising: a base component 1, a front seat component 4, a rear seat component 2, a main beam 5 and an upper pressing mechanism 6. The base assembly 1 comprises a base beam 8. One end of the front seat assembly 4 and one end of the rear seat assembly 2 are respectively arranged at two ends of the base beam 8 in the length direction. The other end of the front seat assembly 4 and the other end of the rear seat assembly 2 are respectively disposed at both ends of the length direction of the main beam 5 to support the main beam 5. The upper pressing mechanism 6 is used for pressing the storage tank barrel section on the main beam 5 so as to weld the storage tank barrel section.

In particular, with the increasing demands on rocket tank design and quality level, tank manufacturing is continually evolving towards an integrated simplified design and efficient production, thus providing an integrated welding demand for long and even ultra-long tank sections to reduce tank girth welding. If a vertical assembly welding scheme is adopted for the long barrel section, the height of relevant welding equipment needs to be greatly increased, the product to be welded is lifted, the height of the factory building is multiplied, and adverse effects are brought to the construction and production safety of the factory building.

In this embodiment, the front seat assembly and the rear seat assembly are body frames connected front and rear of the horizontal friction stir welding device. The main cross beam is a main supporting beam and provides milling and welding rigid internal supporting force for the storage box wall plate to be welded. Milling or welding backing plates can be arranged on the main beam, and the two backing plates can be arranged in a replacement mode. The upper pressing mechanism provides a rigid outer holding for the milled or welded wall plate and prevents the wall plate from moving in the processing process. The base assembly provides support for the tank section at the bottom. The horizontal friction stir welding device of the embodiment supports the whole storage tank long section or the overlength section to be welded in a horizontal mode (namely, the welding edges of the storage tank wall plates to be welded in the length direction are pressed on the main cross beam, the main cross beam supports the upper part of the storage tank long section or the overlength section, and the base component supports the lower part of the storage tank long section or the overlength section), longitudinal seam welding can be carried out on the whole storage tank section without higher equipment and factory building conditions, the circumferential seam assembly welding procedure with higher assembly difficulty in the production of the existing storage tank long section is reduced, and the production efficiency of the storage tank section is remarkably improved.

According to one embodiment of the utility model, the horizontal friction stir welding device comprises two upper pressing mechanisms which are arranged on two sides of the width direction of the main beam, and the two wall plates to be welded are respectively pressed along the length direction of the two wall plates.

In this embodiment, the two upper pressing mechanisms are pressed to provide a rigid outer holding for the wall plates to be milled or welded, so that the welding edges of the wall plates can be ensured to be assembled in place, and no movement is generated in the milling or welding process, so that the milling or welding of 4 wall plates is completed to form a long barrel section.

According to one embodiment of the present utility model, the base beam, the front seat assembly, the rear seat assembly and the main beam may employ H-steel as their main structures to reduce the weight of the apparatus. The base assembly comprises a workbench connecting plate used for being connected with a workbench, a front seat adapter plate used for being connected with a front seat assembly and a rear seat adapter plate used for being connected with a rear seat assembly. The workbench connecting plate, the front seat adapter plate and the rear seat adapter plate can be reliably connected with the base cross beam (H-shaped steel) through bolts, so that the assembly and disassembly of the components are facilitated. The workbench connecting plate can be reliably fixed on the workbench through a plurality of pairs of phi 20 anchor bolts, so that the base component and the workbench are fixed.

According to one embodiment of the utility model, the front seat assembly comprises a first base connecting plate which can be fixedly connected with H-shaped steel of the front seat assembly through bolts. The rear seat assembly comprises a second base connecting plate which can be fixedly connected with H-shaped steel of the rear seat assembly through bolts. The first base connecting plate of the front seat assembly and the second base connecting plate of the rear seat assembly can be respectively and fixedly connected with the front seat adapter plate and the rear seat adapter plate of the base assembly through bolts so as to respectively and fixedly connect the front seat assembly, the rear seat assembly and the base assembly.

According to one embodiment of the utility model, three torsion reinforcing rib plates are welded on two sides of the front seat assembly (H-shaped steel) and the rear seat assembly (H-shaped steel) in the width direction respectively so as to ensure the rigidity in the width direction and increase the stability.

In this embodiment, the front seat assembly and the rear seat assembly are reduced in weight by using H-steel. The torsional reinforcing rib plate is arranged, so that the defects of insufficient rigidity in the width direction of the front seat assembly and the rear seat assembly and deflection in the welding process of the barrel section can be prevented, the quality of a welding seam is affected, and the stability of welding is enhanced.

As shown in fig. 1, the horizontal friction stir welding apparatus according to an embodiment of the present utility model includes a lower beam assembly 3 disposed between a main beam 5 and a base beam 8, in addition to a base assembly 1, a front seat assembly 4, a rear seat assembly 2, a main beam 5, and an upper pressing mechanism 6. The lower beam assembly 3 includes a lower beam 18 and a support assembly. The two ends of the lower cross beam 18 in the length direction are fixedly connected with the front seat assembly 4 and the rear seat assembly 2 respectively. The support members are provided at both ends of the lower cross member 18 in the width direction and extend outward to support the tank section.

In this embodiment, for example, four 1/4 circular arc wall panels are subjected to four friction stir welding longitudinal seam welds. The supporting component of this embodiment can support 1/4 wallboard length direction limit, also can support the wallboard length direction lateral wall inside that has accomplished the longitudinal seam welding, provides holding power for the main beam, has alleviateed the pressure of main beam, has avoided main beam concave deformation. Simultaneously, also supported the arc of section of thick bamboo, prevented section of thick bamboo warp.

According to one embodiment of the utility model, the front seat assembly further comprises a first lower beam connecting plate which can be fixedly connected with the H-shaped steel of the front seat assembly through bolts. The rear seat assembly further comprises a second lower cross beam connecting plate which can be fixedly connected with H-shaped steel of the rear seat assembly through bolts. The lower cross beam adopts square steel as a main body structure frame thereof. The lower beam assembly further comprises a first front seat connecting plate and a first rear seat connecting plate, and the first front seat connecting plate and the first rear seat connecting plate are fixedly connected with the first lower beam connecting plate and the second lower beam connecting plate through bolts respectively so as to fixedly connect the lower beam assembly with the front seat assembly and the rear seat assembly respectively.

According to one embodiment of the utility model, the main beam further comprises a second front seat connecting plate and a second rear seat connecting plate, and the second front seat connecting plate and the second rear seat connecting plate are fixedly connected with the H-shaped steel of the main beam. The two ends of the length direction of the main beam are fixedly connected with the front seat assembly and the rear seat assembly through the second front seat connecting plate and the second rear seat connecting plate respectively.

According to one embodiment of the utility model, the support assembly includes a plurality of side support bars 14 and barrel section support bars 15. One end of each side supporting rod 14 is fixedly connected with the lower cross beam 18, and the other end is connected with the barrel section supporting rod 15.

According to one embodiment of the utility model, the side support bar is of a telescopic construction.

According to one embodiment of the utility model, each side support bar 14 comprises two hollow bars. The two hollow rods are connected in a telescopic way through threads.

In this embodiment, the side support pole is designed to be telescopic structure, can drive section of thick bamboo die-pin and stretch out under section of thick bamboo semi-manufactured goods state and hold the wallboard, also can provide the support for section of thick bamboo arc interior round surface after section of thick bamboo is closed. In addition, the length of the side support bars can be adjusted to accommodate the length-wise edges or inner side walls of the wall panels, depending on the size of the wall panels (i.e., the diameter or radius of the barrel section).

As shown in fig. 2, 3 and 4, according to an embodiment of the present utility model, the upper pressing mechanism 6 includes two clamp beams 11, the clamp beams 11 being disposed along the length direction of the main beam 5, and both ends of the length direction thereof being fixedly connected to the main beam 5. The clamp beam 11 is provided with a plurality of groups of quick press clamps 12 along its length. The two clamping beams 11 are used for respectively compacting the welding parts of the two tank barrel sections. The plurality of groups of quick-pressing clamps 12 are used for pressing the storage tank barrel sections to the main cross beam 5 along the length direction of the clamp beam 11.

The horizontal friction stir welding device that this embodiment provided, two anchor clamps roof beams set up one row respectively and press anchor clamps soon, and anchor clamps roof beam length direction's both ends can be through bolt and main beam fastening fixed. Aiming at the local deformation position of the wall plate of the storage box barrel section, the local deformation position can be locally adjusted by adjusting the compaction degree of the nearby quick-press clamp, so that the integral compaction precision of the wall plate is ensured, and the processing difficulty (such as straightness) and the production cost of the clamp beam are reduced. In addition, when the milling or welding backing plate needs to be replaced and each welding line of the barrel section is welded and rotated, the whole upper pressing mechanism does not need to be disassembled or removed, and the product is lifted back to be installed after being arranged or rotated in place. Only the quick pressing clamp is required to be loosened, repeated disassembly and assembly of the clamp beam are not required, the replacement of the base plate or the rotation of the barrel section can be completed, the use is more convenient, the disassembly and lifting time is saved, and the production efficiency is improved. Practice proves that the horizontal friction stir welding device can save about 2 hours of disassembly and lifting time each time.

According to one embodiment of the utility model, the quick press clamp 12 includes a front end hold down for holding down the tank section. The front end pressing part comprises a pressing rod 7 and a pressing seat 9. The pressing rod 7 is in threaded connection with the pressing seat 9, so that the pressing seat 9 moves along the length direction of the pressing rod 7, and the extrusion degree of the pressing seat on the storage box barrel section is adjusted.

In this embodiment, after the storage tank section is placed on the main beam, the clamp beam is pressed on the front surface of the barrel section (i.e., the outer side surface of the barrel section), and the quick-press clamp handle is pressed down, so that the compression seat of the compression part at the front end of the quick-press clamp compresses the barrel section. The compressing rod is in threaded connection with the compressing seat, so that the height of the compressing seat is adjustable. The fast pressing fixture ensures the integral pressing precision of the wallboard by adjusting the height of the pressing seat.

According to one embodiment of the utility model, the quick press clamp 12 includes a front end hold down for holding down the tank section. The front end pressing part comprises a pressing rod 7 and a pressing seat 9. The pressing rod 7 is in threaded connection with the body of the quick pressing clamp, so that the pressing rod drives the pressing seat 9 to move along the length direction of the pressing rod 7, and the extrusion degree of the pressing seat to the storage box barrel section is adjusted.

In this embodiment, the compressing rod is screwed with the fast pressing fixture body, so that the height of the compressing seat is adjustable. The fast pressing fixture ensures the integral pressing precision of the wallboard by adjusting the height of the pressing seat.

In this embodiment, the pressing rod and the quick press jig body can be fastened by a nut.

According to one embodiment of the utility model, the base of the quick clamp is provided with a plurality of (e.g., four) mounting holes through which bolts may be used to secure the quick clamp to the clamp beam.

According to one embodiment of the present utility model, the clamp beam 11 has a hollow structure to reduce its weight.

The horizontal friction stir welding device of the embodiment adopts two lightweight clamp beams, so that the production cost is reduced.

Further, the jig beam may be designed to have a triangular hollow structure in cross section.

In the embodiment, according to actual production requirements, the structural design of the clamp beam can be adjusted through finite element simulation, and the strength or rigidity of the clamp beam can be calculated on the premise of ensuring the lightest mass. Practice proves that the deformation of the clamp beam in the welding stress state can be controlled to be smaller than 3mm through finite element simulation.

According to one embodiment of the utility model, the main beam is provided with a shim plate mounting for mounting a welding shim plate or a milling shim plate. The backing plate mount pad is fixedly connected with H-shaped steel of the main beam.

In this embodiment, the milling shim plate may be secured to the shim plate mount in a central position by countersunk screws to mill the welded edges of the wall plate prior to welding. In addition, the milling pad can be replaced with a welding pad to weld the welding edges of the wall plates. During friction stir welding of the barrel sections, a weld or milling shim plate is used to provide rigid internal support for the barrel sections.

According to one embodiment of the present utility model, the base cross beam 8 is provided at both ends in the width direction with a plurality of profiling support seats 10. The upper sides of the plurality of profiling supporting seats 10 are arc-shaped to adaptively support the tank cylinder sections.

In this embodiment, the inner arc of the contoured support base is consistent with the outer arc of the barrel section, providing support for the outer side of the barrel section and ensuring the arc of the barrel section. The profiling supporting seat can be connected with the side face of the base beam through bolts.

According to one embodiment of the utility model, a plurality of first vertical support bars 16 are provided between the main beam 5 and the lower beam 18 to support the main beam 5. A plurality of second vertical support bars 17 are detachably provided between the base cross member 8 and the lower cross member 18 to support the lower cross member 18.

In this embodiment, in the welding process of storage box wallboard, first perpendicular bracing piece, second perpendicular bracing piece can be with the pressure transmission that the main beam bore to the base subassembly to transmit to the workstation, avoided the main beam to influence welding quality because the bending downwards.

According to one embodiment of the utility model, the first vertical supporting rod and the second vertical supporting rod are telescopic mechanisms, and are respectively connected with the two hollow rods in a telescopic way through threads.

In this embodiment, the barrel section is conveniently removed from the horizontal friction stir welding device after welding is completed by contraction of the second vertical support bar.

According to one embodiment of the utility model, main beam adjusting backing plates 13 are respectively arranged between the front seat assembly 4 and the main beam 5 and between the rear seat assembly 2 and the main beam 5. The main beam adjusting pad 13 is height-adjustable to adjust both ends of the length direction of the main beam 5 to be horizontal.

According to one embodiment of the utility model, bolt structures are arranged on two sides and below the main beam adjusting backing plate along the width direction of the main beam, and the height adjustment of the two ends of the main beam in the length direction is consistent and the width direction is adjusted to be horizontally centered through the adjusting bolt structures so as to meet the requirement of milling and welding the barrel section.

The horizontal friction stir welding device that this embodiment provided through setting up main beam adjusting backing plate and adjusting bolt structure, has realized the regulation that the level was placed in the middle about to main beam height always, simple structure, simple operation, the cost is lower.

According to one embodiment of the utility model, the two main beam adjusting base plates are fixedly connected with the H-shaped steel of the front seat assembly and the H-shaped steel of the rear seat assembly through bolts respectively.

As shown in fig. 5, taking a rocket tank section with a diameter of 3350mm and a length of 6 m as an example, by using the horizontal friction stir welding device provided by the utility model, four 1/4 arc wall plates can be welded by four friction stir welding longitudinal joints, and the specific process flow is as follows:

s001: the base assembly is assembled and secured to the table.

S002: and assembling the front seat assembly, the rear seat assembly and the lower beam assembly, and fixedly connecting the base assembly and the lower beam assembly with the front seat assembly and the rear seat assembly.

Step S002 also comprises the assembly of side support rods, barrel section support rods, first vertical support rods and second vertical support rods, and the fixed connection between the components.

For weight reduction, the width of the front seat assembly H-shaped steel and the rear seat assembly H-shaped steel can be designed to be 300mm. Three torsion reinforcing rib plates are respectively designed on two sides of the front seat assembly H-shaped steel and the rear seat assembly H-shaped steel in the width direction, so that the bottom widths of the front seat assembly and the rear seat assembly are increased to 950mm, and the stability of the front seat assembly and the rear seat assembly can be enhanced.

S003: and assembling a main beam, fixing the main beam to the front seat assembly and the rear seat assembly, and adjusting the main beam to a horizontal state.

S004: and (3) assembling a milling backing plate and an upper pressing mechanism to the main beam, clamping the wallboard and milling the long-barrel-section wallboard.

S005: and replacing the milling backing plate with a welding backing plate, sequentially clamping the wall plates, compressing the two rows of quick-press clamps, and welding the long barrel sections.

S006: and disassembling the welded finished product long barrel section, and recovering the horizontal friction stir welding device to an original state.

The method comprises the following steps: s061, loosening two rows of quick-press clamps, and detaching the upper press mechanism from the main beam; s062, loosening the joint of the rear seat assembly, the main beam, the lower beam assembly and the base assembly, and dismantling the rear seat assembly; s063, contracting the second vertical support rod, lifting the long barrel section to a certain height by using a hanging belt, and horizontally moving out of the horizontal friction stir welding device along the axial direction to finish the disassembly of the finished long barrel section; s064, the first vertical supporting rod is propped against the main cross beam, the backseat assembly and the upper pressing mechanism are restored, and the horizontal friction stir welding device is restored to the original state.

The horizontal type friction stir welding device for the long barrel section of the storage tank can be installed, debugged and used, so that the horizontal type welding of the barrel section of the storage tank with the length of 6 meters can be realized.

The above-described embodiments of the present utility model can be combined with each other with corresponding technical effects.

The foregoing description of the preferred embodiments of the utility model is not intended to be limiting, but rather is intended to cover all modifications, equivalents, alternatives, and improvements that fall within the spirit and scope of the utility model.

Claims (10)

1. A horizontal friction stir welding apparatus comprising: the device comprises a base assembly, a front seat assembly, a rear seat assembly, a main beam and an upper pressing mechanism;

the base assembly includes a base beam;

one end of the front seat assembly and one end of the rear seat assembly are respectively arranged at two ends of the base beam in the length direction; the other end of the front seat assembly and the other end of the rear seat assembly are respectively arranged at two ends of the main beam in the length direction so as to support the main beam;

the upper pressing mechanism is used for pressing the storage box barrel section on the main beam so as to weld the storage box barrel section.

2. The horizontal friction stir welding apparatus of claim 1 further comprising a lower beam assembly disposed between the main beam and the base beam;

the lower beam assembly comprises a lower beam and a support assembly; the two ends of the lower cross beam in the length direction are fixedly connected with the front seat assembly and the rear seat assembly respectively;

the support components are arranged at two ends of the width direction of the lower cross beam and extend outwards to support the storage tank barrel section.

3. The horizontal friction stir welding device of claim 2 wherein the support assembly comprises a plurality of side support bars and barrel section support bars;

one end of each side supporting rod is fixedly connected with the lower cross beam, and the other end of each side supporting rod is connected with the corresponding barrel section supporting rod.

4. The horizontal friction stir welding apparatus of claim 3 wherein each of said side support bars comprises two hollow bars; the two hollow rods are connected in a telescopic way through threads.

5. The horizontal friction stir welding device according to claim 1, wherein the upper pressing mechanism comprises two clamp beams, the clamp beams are arranged along the length direction of the main cross beam, and two ends of the length direction of the clamp beams are fixedly connected with the main cross beam; the clamp beam is provided with a plurality of groups of quick-press clamps along the length direction; the two clamp beams are respectively used for compacting the welding parts of the two storage tank barrel sections; and the plurality of groups of quick-pressing clamps are used for pressing the storage tank barrel sections to the main cross beam along the length direction of the clamp beam.

6. The horizontal friction stir welding device of claim 5 wherein said quick press clamp includes a front end hold down for holding down a tank section; the front end pressing part comprises a pressing rod and a pressing seat; the compressing rod is in threaded connection with the compressing seat, so that the compressing seat moves along the length direction of the compressing rod, and the extrusion degree of the compressing seat on the storage box barrel section is adjusted.

7. The horizontal friction stir welding device of claim 6 wherein the clamp beam is hollow to reduce its weight.

8. The horizontal friction stir welding device according to claim 1, wherein a plurality of profiling supporting seats are provided at both ends of the base beam in the width direction; the upper side surfaces of the profiling supporting seats are arc-shaped so as to adaptively support the storage tank section.

9. The horizontal friction stir welding device according to claim 2, wherein a plurality of first vertical support bars are provided between the main beam and the lower beam to support the main beam;

a plurality of second vertical support rods are detachably arranged between the base cross beam and the lower cross beam so as to support the lower cross beam.

10. The horizontal friction stir welding device according to claim 1, wherein main beam adjusting backing plates are respectively arranged between the front seat assembly and the main beam, and between the rear seat assembly and the main beam; the height of the main beam adjusting backing plate is adjustable, so that the two ends of the length direction of the main beam are adjusted to be horizontal.