Outscrew friction welding and its combined structure

Abstract

The patent relates to a welding connector, in particular to an outer rotation type friction welding piece and a combined structure thereof. The outer rotation type friction welding piece comprises a clamping part (1) and a connecting part (2). The clamping part (1) comprises a clamping end (11), a friction platform (13) and a supporting platform (12). The upper end of the friction platform (13) is connected with the clamping end (11), the lower end of the friction platform (13) is connected with the supporting platform (12), and the diameter of the supporting platform (12) is larger than that of the friction platform (13). The lower part of the supporting platform (12) is connected with the connecting part (2). The outer rotation type friction welding piece solves the problems that the traditional small cavity plate cannot be welded due to the small space, and the operator and welding equipment cannot enter the welding operation, and the upper and lower steel plates are connected through the outer rotation type friction welding piece to form a stable double-steel-plate connecting structure.

Description

TECHNICAL FIELD

[0001] The patent relates to a welding connector, in particular to an outer rotation type friction welding connector and a combined structure thereof. BACKGROUND

[0002] Traditional welding connectors such as welding pins, welding pads and the like are mainly used as connectors or structural reinforcement and are generally welded on the surface of a steel plate and are also used as concrete anchoring. Traditional small cavity structures are mostly connected by welding a screw rod or a connecting plate. However, due to the small space in the small cavity, the internal welding of the small cavity plate has been a bottleneck problem in the industry. It is difficult to ensure that the welding processes at both ends are stable, and the parameters are the same or similar. SUMMARY

[0003] The patent provides an outer rotation type friction welding connector and a combined structure thereof, which can solve the welding problem between small cavity plates.

[0004] In order to solve the above technical problems, the patent solves the problems by the following technical solutions:

[0005] The outer rotation type friction welding connector comprises a clamping portion and a connecting portion. The clamping portion comprises a clamping end, a friction table and a supporting table. The upper end of the friction table is connected with the clamping end, and the lower end of the friction table is connected with the supporting table. The diameter of the supporting table is larger than that of the friction table, and the lower part of the supporting table is connected with the connecting portion. The clamping end is used for clamping with a rotating clamping machine.

[0006] As a preferred embodiment, the friction table is a variable diameter section or a step. The connecting portion is in a columnar shape, and a thickened welding ring is arranged at the lower end of the connecting portion. The diameter of the welding ring is larger than that of the connecting portion. The outer rotation type friction welding connector is made of a metal material, and the clamping portion, the friction table and the supporting table are integrated. In the present application, the diameter of the welding ring is larger than that of the connecting portion, which aims to increase the connection interface between the welding ring and the distal plate, prevent the distal end from jumping when the proximal end rotates, appropriately reduce the embedding depth of the distal plate, and form a stable connection structure.

[0007] As a preferred embodiment, the clamping portion is in an outward convex structure, and the cross section of the clamping portion is in a polygonal cross section. The clamping portion meets the requirements of friction welding rotation power, and the outward convex structure also serves as an additional connection end or anchoring function. In the present application, the clamping portion is arranged at one end of the columnar pipe body, is located outside the face plate and can be connected with the rotating end of the friction welding mechanism. A conical boss matched with the hole of the upper steel plate is arranged at the lower part of the clamping portion, the distal end of the columnar pipe body is in contact with the bottom plate, and a clever structure for synchronous welding of the rotating mechanism face and the bottom plate is formed.

[0008] As preferred, the clamping part is concave structure, and a concave polygonal connecting groove is arranged in the middle part of the clamping part. The clamping part meets the requirement of friction welding rotation power, and the concave groove type is used for the rotating device, while keeping the rotating part substantially flat with the panel, smooth and smooth.

[0009] As preferred, the connecting part is a hollow pipe body. The hollow pipe body can reduce the material usage while ensuring the strength of the connecting end of the connecting part and the rotation torque; in addition, by increasing the diameter and improving the connection strength, the rigidity can be coordinated to avoid excessive weld stress caused by excessive rigidity, and a balanced flexible structure is formed.

[0010] As preferred, the connecting part is a cylindrical solid rod body. The solid rod body is suitable for the condition that the diameter is small and the distance between the two steel plates is small.

[0011] As preferred, the connecting part is partially cut, and the cut part is punched to form an everted or inverted connecting piece. The everted base metal connecting piece has the effects of reducing welding, reducing fatigue and cracking caused by welding, and reducing cost.

[0012] As preferred, the friction table is a circular table, and the diameter of the friction table gradually increases from the clamping end to the support table. The friction table is a circular table with a small diameter at the top and a large diameter at the bottom. The support table is arranged at the lower part of the friction table, and the diameter of the support table is larger. When the clamping part at the upper end of the outer rotating friction welding part penetrates into the upper steel plate, the diameter of the support table is larger than the diameter of the hole in the upper steel plate, so that the lower surface of the upper steel plate is in contact with the outer surface of the friction table, and the friction welding is performed.

[0013] The outer rotating friction welding part combination structure comprises the outer rotating friction welding part, and further comprises an upper steel plate and a lower steel plate. The upper steel plate has a connecting hole, and the outer rotating friction welding part is arranged between the upper steel plate and the lower steel plate, and the upper part of the clamping part penetrates through the connecting hole. The support table on the clamping part is in contact with the lower surface of the upper steel plate, the outer surface of the friction table of the clamping part is in contact with the inner wall of the connecting hole of the upper steel plate, and the lower end of the connecting part of the outer rotating friction welding part is in contact with the upper surface of the lower steel plate through friction welding. During friction rotation welding, the top forging pressure of friction welding first acts on the panel, the panel is applied to the cylindrical pipe body through the conical boss, the cylindrical pipe body transmits force to the far end, and the farthest bottom plate is tightly pressed. In the above force transmission path, the transmission of the acting force and the reaction force is formed, so that the initial top forging force of the panel, the friction welding top forging force of the panel and the conical boss, and the top forging force of the far end of the cylindrical pipe body are all the same. The rotating friction mechanism is in coaxial rotating state, and the rotating speed is the same. The rotating friction mechanism and the cylindrical pipe body are started and stopped synchronously. In this way, the welding process of the three elements of the same welding end top forging force, rotating speed and time is formed, so that the manufacturing of the outer rotating inner welding of the cavity plate becomes a reality. Moreover, the top forging force, time and rotating speed can be detected synchronously by external mechanism, and can be controlled, so as to achieve the effect of stable performance of the cavity plate.

[0014] As preferred, the filler is arranged between the upper steel plate and the lower steel plate, and the filler is concrete. The structure can be applied to a double steel plate shear wall structure, and the welding amount of a general double steel plate shear wall is great, and the panels are spliced by strip-shaped welding, and the welded seams are structural seams, which directly participate in force bearing. The application converts the above-mentioned welded seams into constructional seams, reduces the sensitivity, and the panel is an integral panel, has few structural defects, and has less welding amount, which is an upgraded product of the double steel plate shear wall.

[0015] As preferred, the concrete is light aggregate concrete. Since the concrete in the double steel plate does not need to consider carbonization and cracking conditions, the use environment is greatly improved, therefore, when the inner filler is light aggregate concrete, the self-weight is reduced, the anti-seismic capacity is improved, and in some use environments, the same weight can be used to adopt a thicker plate body, so that the load bearing efficiency of the two side double steel plates is improved by square level, and the strength performance reserve is increased.

[0016] The patent solves the problems that the inner welding of the traditional small cavity plate cannot be operated and welded by people and welding equipment due to small space by the outer rotation type friction welding piece, and connects the upper steel plate and the lower steel plate by the outer rotation type friction welding piece to form a stable double steel plate connection structure. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is a structure schematic diagram of the outer rotation type friction welding piece of the patent.

[0018] Figure 2 It is a structure schematic diagram of the outer rotation type friction welding piece of the patent. Figure 1 Front view.

[0019] Figure 3 It is a structure schematic diagram of the outer rotation type friction welding piece of the patent.

[0020] Figure 4 It is a schematic diagram of the clamping part being an inner recess structure in embodiment 2 of the patent.

[0021] Figure 5 It is a sectional view of the patent. Figure 4

[0022] Figure 6 It is a double steel plate combination structure diagram of embodiment 2 of the patent.

[0023] Figure 7 It is a structure schematic diagram of the outer rotation type friction welding piece in embodiment 3.

[0024] Figure 8 It is Figure 7 Other perspective view.

[0025] Figure 9 It is a double steel plate combination structure diagram of embodiment 4 of the patent.

[0026] ​Wherein 1-holding part, 2-connection part, 3-welding ring, 4-upper steel plate, 5-lower steel plate, 11-holding end, 12-supporting platform, 13-friction platform, 21-tapered boss, 41-connection hole. DETAILED DESCRIPTION

[0027] The following will be described in detail with reference to the accompanying drawings Figure 1 to the accompanying drawings Figure 9 The patent will be further described in detail with the specific embodiments: Example 1

[0028] The outer rotation type friction welding part, as shown in 1-3, comprises a holding part 1 and a connection part 2, the holding part 1 comprises a holding end 11, a friction platform 13 and a supporting platform 12, the upper end of the friction platform 13 is connected with the holding end 11, the lower end of the friction platform 13 is connected with the supporting platform 12, the diameter of the supporting platform 12 is larger than that of the friction platform 13, and the lower part of the supporting platform 12 is connected with the connection part 2. The holding end 11 is used for cooperating with the rotating holding machine for holding. Figure 1 2 The outer rotation type friction welding part is made of metal material, and the holding part 1 and the friction platform 13 and the supporting platform 12 are integrated. The diameter of the welding ring 3 in the application is larger than that of the connection part 2, which aims to increase the connection interface of the welding ring and the distal end plate, prevent the jumping of the distal end when the proximal end rotates, appropriately reduce the embedding depth of the distal end plate, and form a stable connection structure.

[0029] The holding part 1 is an outer convex structure, and the cross section of the holding part 1 is a polygonal section. The holding part meets the requirement of friction welding rotation power, and the outer convex structure also serves as an additional connection end or anchoring function. The application is provided with the holding part 1 at one end of the columnar pipe body, the holding part 1 is located outside the panel and can be connected with the rotating end of the friction welding mechanism. A tapered boss matched with the hole of the upper steel plate 4 is arranged at the lower part of the holding part 1, the distal end part of the columnar pipe body is in contact with the bottom plate, and a clever structure of synchronous welding of the rotating mechanism surface and the bottom plate is formed.

[0030] The connection part 2 is a hollow pipe body. The hollow pipe body can reduce the material consumption while ensuring the strength of the connection part and the rotation torque, reduce the low-efficiency friction welding area near the center of rotation with small linear velocity, and further, by increasing the diameter and improving the connection strength, the wall thickness can be controlled to coordinate the excessive rigidity to cause excessive welding stress, and a balanced flexible structure is constructed.

[0031] The connection part 2 is a hollow pipe body. The hollow pipe body can reduce the material consumption while ensuring the strength of the connection part and the rotation torque, reduce the low-efficiency friction welding area near the center of rotation with small linear velocity, and further, by increasing the diameter and improving the connection strength, the wall thickness can be controlled to coordinate the excessive rigidity to cause excessive welding stress, and a balanced flexible structure is constructed.

[0032] The connection part 2 is partially cut, and the cut part is stamped into an outward or inward connecting piece. The outward connecting piece of the base material has the effects of reducing welding, reducing fatigue and cracking caused by welding, and reducing cost.

[0033] ​The friction table 13 is a circular table, and the diameter of the friction table 13 gradually increases from the clamping end 11 to the support table 12. The friction table 13 is a circular table with a smaller diameter at the top and a larger diameter at the bottom. The support table 12 is arranged at the lower part of the friction table 13, and the diameter of the support table 12 is larger. When the clamping part 1 at the upper end of the outer-rotation type friction welding element penetrates into the upper steel plate, the diameter of the support table 12 is larger than the diameter of the opening on the upper steel plate, so that the lower surface of the upper steel plate is in contact with the support table 12, and the friction welding is realized.

[0034] The outer-rotation type friction welding element assembly structure comprises the outer-rotation type friction welding element, an upper steel plate 4 and a lower steel plate 5. The upper steel plate 4 is provided with a connecting hole 41. The outer-rotation type friction welding element is arranged between the upper steel plate 4 and the lower steel plate 5, and the upper part of the clamping part 1 penetrates through the connecting hole 41. The support table 12 on the clamping part 1 is in contact with the lower surface of the upper steel plate 4, the outer surface of the friction table 13 of the clamping part 1 is in contact with the inner wall of the connecting hole 41 on the upper steel plate 4, and the lower end of the connecting part 2 of the outer-rotation type friction welding element is in contact with the upper surface of the lower steel plate 5. The above-mentioned parts are connected by friction welding. In the embodiment, a plurality of outer-rotation type friction welding elements are arranged between the upper steel plate 4 and the lower steel plate 5, and the outer-rotation type friction welding elements are used to weld and connect the upper steel plate 4 and the lower steel plate 5 together.

[0035] The filling material is arranged between the upper steel plate 4 and the lower steel plate 5, and the filling material is concrete. The structure can be applied to a double-steel-plate shear wall structure. The welding amount of a general double-steel-plate shear wall is large, and the panels are spliced by strip-shaped welding. The welded seams are structural seams, which directly participate in the stress. The application converts the above-mentioned seams into constructional seams, reduces the sensitivity, and uses the integral panel, so that the structural defects are few and the welding amount is small. The application is an upgraded product of the double-steel-plate shear wall.

[0036] The concrete is light aggregate concrete. Since the concrete in the double-steel-plate does not need to consider carbonization and cracking under the working conditions, the use environment is greatly improved. Therefore, when the light aggregate concrete is used for filling, the self-weight is reduced, the anti-seismic ability is improved, and in some use environments, the same weight can be used to adopt a thicker plate body, so that the load-bearing efficiency of the double-steel-plate is improved by square level, and the strength performance reserve is increased.

[0037] Embodiment 2

[0038] As shown in Figure 4 , 5 , 6, the clamping part 1 of the outer-rotation type friction welding element in the embodiment is an inner recess structure, and the middle part of the clamping part 1 is provided with an inner recessed polygonal connecting groove. The clamping part meets the rotation power requirement of friction welding, and the inner recessed groove is used for the rotating device, while keeping the rotating part and the panel basically flat and smooth.

[0039] The friction table 13 is a variable-diameter section or a step. The connecting part 2 is columnar, and the lower end of the connecting part 2 is provided with a thickened welding ring 3, and the diameter of the welding ring 3 is larger than the diameter of the connecting part 2.

[0040] The application is provided with a connecting and clamping end 2 at one end of the columnar pipe body, the connecting and clamping end 2 is located inside the panel, the clamping part 1 is a concave structure and can be connected with the rotating end of the friction welding mechanism, a conical boss 21 matched with the opening of the panel is arranged at the lower part of the connecting and clamping end 2, the distal end of the columnar pipe body is in contact with the bottom plate, forming a clever structure of synchronous welding of the rotating mechanism and the bottom plate.

[0041] During the friction rotation welding, the upsetting pressure of the friction welding is firstly applied to the panel, the panel is applied to the columnar pipe body through the conical boss 21, the columnar pipe body transmits the force to the distal end, and the distal end is in close contact with the bottom plate, in the above force transmission path, the transmission of the acting force and the reaction force is formed, so that the initial upsetting force of the panel, the upsetting force of the friction welding between the panel and the conical boss 21 and the upsetting force of the distal end of the columnar pipe body and the bottom plate are all the same. The rotating friction mechanism is in the coaxial rotating state, and the rotating speed is the same. The rotating friction mechanism and the columnar pipe body are started and stopped synchronously. In this way, the welding process that the three elements of the upsetting force, the rotating speed and the time of the two welding ends are the same is formed, so that the manufacturing of the cavity plate welded from the outside to the inside becomes a reality. Moreover, the upsetting force, the time and the rotating speed can be detected, controlled and synchronized by the external mechanism, and the stable performance of the cavity plate is achieved.

[0042] Embodiment 3

[0043] As shown in Figure 7 , 8 , 9, the outer rotation type friction welding part in the embodiment is a cylindrical solid rod body. The solid rod body is suitable for the working condition that the diameter is small and the distance between the double steel plates is small.

[0044] In summary, the above only describes the preferred embodiments of the patent, and any equivalent changes and modifications made within the scope of the patent application patent should be covered by the patent.

Claims

1. An out-of-rotation friction welding assembly, comprising: The outer rotation type friction welding piece comprises an upper steel plate (4) and a lower steel plate (5); the outer rotation type friction welding piece comprises a clamping part (1) and a connecting part (2), the clamping part (1) comprises a clamping end (11), a friction platform (13) and a supporting platform (12), the upper end of the friction platform (13) is connected with the clamping end (11), the lower end of the friction platform (13) is connected with the supporting platform (12), the diameter of the supporting platform (12) is larger than that of the friction platform (13), and the lower part of the supporting platform (12) is connected with the connecting part (2); the upper steel plate (4) is provided with a connecting hole (41), the outer rotation type friction welding piece is arranged between the upper steel plate (4) and the lower steel plate (5), and the upper part of the clamping part (1) passes through the connecting hole (41); the supporting platform (12) on the clamping part (1), the lower surface of the upper steel plate (4), the outer surface of the friction platform (13) of the clamping part (1), the inner wall of the connecting hole (41) of the upper steel plate (4) and the lower end of the connecting part (2) of the outer rotation type friction welding piece and the upper surface of the lower steel plate (5) are connected through friction welding.

2. The outer spin frictional welding assembly structure according to claim 1, characterized by: A filler is arranged between the upper steel plate (4) and the lower steel plate (5), and the filler is concrete.

3. The outer spin friction welding assembly of claim 2, wherein: The concrete is light aggregate concrete.

4. An outer rotation type friction welding member for use in the outer rotation type friction welding member assembly structure according to any one of claims 1 to 3, comprising a clamping portion (1) and a connecting portion (2), characterized in that: The clamping part (1) comprises a clamping end (11), a friction platform (13) and a supporting platform (12), the upper end of the friction platform (13) is connected with the clamping end (11), the lower end of the friction platform (13) is connected with the supporting platform (12), the diameter of the supporting platform (12) is larger than that of the friction platform (13), and the lower part of the supporting platform (12) is connected with the connecting part (2).

5. The outboard spin friction weldment of claim 4, wherein: The friction platform (13) is a variable-diameter section.

6. The outboard spin friction weldment of claim 4, wherein: The clamping part (1) is an outward convex structure, and the cross section of the clamping part (1) is a polygonal cross section.

7. The outboard spin friction weldment of claim 4, wherein: The clamping part (1) is an inward concave structure, and a polygonal connecting groove is arranged in the middle part of the clamping part (1).

8. The outboard friction weldment of claim 4, wherein: The connecting part (2) is a hollow pipe body.

9. The outboard spin friction weldment of claim 4, wherein: The connecting part (2) is a cylindrical solid rod body.

10. The outboard friction weldment of claim 4, wherein: The connecting part (2) is partially cut, and the cutting part is punched to form an outward or inward connecting sheet.

11. The outboard friction weldment of claim 4, wherein: The friction platform (13) is a circular platform, and the diameter of the friction platform (13) gradually increases from the clamping end (11) to the supporting platform (12).

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