CN220277918U

CN220277918U - Flattening structure

Info

Publication number: CN220277918U
Application number: CN202223574879.XU
Authority: CN
Inventors: 徐安莲; 唐远金; 杜彦斌
Original assignee: Chongqing Potent Electrical And Mechanical Co ltd
Current assignee: Chongqing Potent Electrical And Mechanical Co ltd
Priority date: 2022-12-31
Filing date: 2022-12-31
Publication date: 2024-01-02
Anticipated expiration: 2032-12-31

Abstract

The utility model discloses a flattening structure, which relates to the technical field of friction stir welding and comprises a base, wherein a substrate for placing a workpiece to be welded is fixedly arranged at the top end of the base, four axial guide posts are fixedly arranged at the top end of the base, the guide posts are positioned at the side of the substrate, a transverse supporting plate is fixedly arranged at the top ends of every two adjacent guide posts, a positioning piece for flattening the workpiece to be welded on the substrate is arranged on the lower end surface of the supporting plate, and the flattening structure plays a flattening role on the workpiece to be welded on the substrate through the action of the positioning piece, so that the possibility of deformation of the workpiece to be welded due to high temperature in the friction stir welding process is reduced.

Description

Flattening structure

Technical Field

The utility model relates to the technical field of friction stir welding, in particular to a flattening structure.

Background

The friction stir welding is a novel welding process, the friction stir welding device is a device which uses heat generated by the rotation motion of a stirring head on the end face of a workpiece and mutual friction to enable the end part to reach a thermoplastic state, then rapidly upsetting and completing welding, and the friction stir welding method is the same as the conventional friction welding. Friction stir welding also uses frictional heat and plastic deformation heat as welding heat sources. In the welding process, the stirring pin stretches into a joint of the workpiece while rotating, friction heat between the stirring head and the workpiece is rotated, so that the material in front of the welding head is subjected to strong plastic deformation, and then the material with high plastic deformation is gradually deposited on the back of the stirring head along with the movement of the welding head, so that a friction stir welding seam is formed.

For friction stir welding of thin plates, welding deformation is caused by local and uneven heating of welding parts in the welding process, the expansion amount of materials in a high-temperature welding area in the heating process is large, the materials are limited by materials with lower ambient temperature and small expansion amount and cannot be freely carried out, the thin plates are deformed, and the deformation has the influence that a step appears between two lapping plates, so that a fastening weld cannot connect plates.

There are generally two conventional methods for adjusting the deformation after welding: one is mechanical tuning and one is flame tuning. The existing friction stir welding device is not provided with a mechanical rolling device, and deformation caused by welding cannot be well eliminated.

The chinese patent with reference publication No. cn202121490557.X discloses a friction stir welding flattening device, including work piece and friction stir welding device, the first mounting panel of one side outer wall fixedly connected with of friction stir welding device, the inner wall threaded connection of first mounting panel has the threaded rod, the one end rotation of threaded rod is connected with the connecting plate, the connecting plate is kept away from and is connected with the rolling wheel between the one end inner wall of threaded rod, fixedly connected with second mounting panel between the inner wall of connecting plate, the inner wall swing joint of second mounting panel has first movable rod, makes air conditioning pass through the conveyer pipe through the conveying pipe and to the interior transport of cooling roller through starting refrigeration plant, and air blows to the surface of work piece through the gas outlet, avoids welding the work piece can not be fast with the high Wen Sanqu that the welding produced after the welding to the problem that leads to the deformation appears. This application sets up another structure that flattens to solve current friction stir welding equipment when two bridging plates of welding, the bridging plate produces the problem of deformation possibility because of the high temperature.

Disclosure of Invention

(one) solving the technical problems

Aiming at the defects of the prior art, the utility model provides a flattening structure, which solves the problem that the prior friction stir welding equipment generates deformation possibility due to high temperature when welding two lapping plates.

(II) technical scheme

In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a flattening structure, includes the base, the base top sets firmly the base plate of placing the work piece of waiting to weld, four axial guide posts have been set firmly to the base top, the guide post is located the side of base plate, every two adjacent guide post top fixed mounting has horizontal backup pad, the lower terminal surface of backup pad is equipped with the setting element that plays flattening effect to the work piece of waiting to weld on the base plate.

Through the technical scheme, the workpiece to be welded on the substrate is flattened through the action of the locating piece, and the possibility that the workpiece to be welded deforms at high temperature in the friction stir welding process is reduced.

Preferably, the locating part is including the clamp plate that is located the backup pad below, the long limit direction of clamp plate is parallel with the long limit direction of backup pad, the both ends of clamp plate are all overlapped and are established in the guide post outside and slide with the guide post and be connected, be equipped with the auto-lock subassembly between clamp plate and the backup pad.

Through above-mentioned technical scheme, when the clamp plate compresses tightly the work piece of waiting to weld, reduce the possibility that waiting to weld the work piece because of high temperature deformation through the effect of auto-lock subassembly.

Preferably, the self-locking assembly comprises two first ear seats fixedly connected with the lower end surface of the supporting plate, a second connecting rod is movably connected to the bottom end of each first ear seat, a third connecting rod is movably connected to one end of each second connecting rod, which is far away from the first ear seat, a second ear seat is movably connected to one end of each third connecting rod, which is far away from the second connecting rod, one end of each second ear seat, which is far away from the third connecting rod, is fixedly connected with the pressing plate, and a driving piece for driving the third connecting rod and the second connecting rod to rotate is arranged between two adjacent second connecting rods.

Through above-mentioned technical scheme, through the effect drive second connecting rod and the rotation of third connecting rod of driving piece, and then drive the clamp plate and reciprocate in vertical orientation, also can make second connecting rod and third connecting rod auto-lock simultaneously, reduce the clamp plate and wait to weld the possibility that the work piece warp when implementing ascending force to the clamp plate because of the clamp plate in the use.

Preferably, the driving piece includes the electric putter with backup pad top fixed connection, the backup pad is worn to establish by electric putter's extension end and is connected with the backup pad slip, the extension end of electric putter wears to establish out the backup pad and extends to the part fixed mounting between clamp plate and the backup pad and have axial spliced pole, the one end fixed mounting that electric putter was kept away from to the spliced pole has the transverse plate, four terminal angle departments of transverse plate surface all swing joint have first connecting rod, the one end and the third connecting rod swing joint of transverse plate are kept away from to first connecting rod.

Through the technical scheme, through the effect of electric putter, electric putter drives the spliced pole and moves down, the downmovement of spliced pole can drive the horizontal board of being connected with spliced pole fixed connection and move down, the downmovement of horizontal board can drive the first connecting rod of being connected with horizontal board swing joint and move down, the downmovement of first connecting rod can drive the third connecting rod of being connected with first connecting rod swing joint and rotate, the rotation of third connecting rod can drive the second connecting rod of being connected with third connecting rod swing joint and rotate, simultaneously the rotation of third connecting rod can drive the clamp plate of being connected with third connecting rod swing joint and move down, until the clamp plate is contradicted with waiting to weld the work piece top, the clamp plate is to wait to weld the work piece and is played the effect of compressing tightly, when first connecting rod rotates to make second connecting rod and third connecting rod be vertical state, once waiting to weld the work piece is heated deformation and is had ascending power to the clamp plate, because second connecting rod and third connecting rod direction are perpendicular, second connecting rod and third connecting rod are unable to rotate, and waiting to weld the work piece because of compressing tightly.

Preferably, the upper end face of the base is fixedly provided with a plurality of quick clamps which play a role in compacting the workpiece to be welded, and the quick clamps are positioned beside the substrate.

Through above-mentioned technical scheme, the side that treats the welding work piece plays the effect of compressing tightly through the effect of quick clamp, treats the welding work piece and plays the positioning action, improves welding precision, and quick clamp is prior art, does not make excessive redundant description here.

Preferably, a friction stir welding device for friction welding the workpiece to be welded is arranged at the middle position above the substrate.

Through above-mentioned technical scheme, friction stir welding device is current structure, does not make excessive description here.

(III) beneficial effects

The utility model provides a flattening structure. The beneficial effects are as follows:

(1) The flattening structure plays a flattening role on the workpiece to be welded on the substrate through the role of the positioning piece, and reduces the possibility of deformation of the workpiece to be welded due to high temperature in the friction stir welding process.

(2) The pressing structure is characterized in that the electric push rod drives the connecting column to move downwards through the action of the electric push rod, the transverse plate fixedly connected with the connecting column is driven to move downwards through the downward movement of the connecting column, the first connecting rod movably connected with the transverse plate is driven to move downwards through the downward movement of the transverse plate, the third connecting rod movably connected with the first connecting rod is driven to rotate through the downward movement of the first connecting rod, the second connecting rod movably connected with the third connecting rod is driven to rotate through the rotation of the third connecting rod, meanwhile, the pressing plate movably connected with the third connecting rod is driven to move downwards through the rotation of the third connecting rod until the pressing plate abuts against the top end of a workpiece to be welded, the pressing plate plays a pressing role on the workpiece to be welded, and when the first connecting rod rotates to enable the second connecting rod and the third connecting rod to be in a vertical state, once the workpiece to be welded is heated and deformed to have upward force on the pressing plate, the second connecting rod and the third connecting rod are vertical, and no component force in the inclined direction exists, and the second connecting rod and the third connecting rod cannot rotate at the moment, so that the pressing plate is pressed to press the workpiece to be welded, and the pressing plate is prevented from being deformed due to heating.

Drawings

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

FIG. 2 is a schematic diagram of the overall side view of the present utility model;

fig. 3 is an enlarged schematic view of the structure of fig. 1 a according to the present utility model.

In the figure: 1. a base; 2. a substrate; 3. a quick clamp; 4. a guide post; 5. a support plate; 6. an electric push rod; 7. a connecting column; 8. a transverse plate; 9. a first link; 10. a first ear mount; 11. a second link; 12. a third link; 13. a second ear mount; 14. a pressing plate; 15. friction stir welding apparatus.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

As shown in fig. 1-3, the present utility model provides a technical solution: the utility model provides a structure of flattening, including base 1, base 1 top has set firmly the base plate 2 of placing the work piece that waits to weld, and base 1 top has set firmly four axial guide posts 4, and guide post 4 is located the side of base plate 2, and every two adjacent guide post 4 top fixed mounting has horizontal backup pad 5, and the lower terminal surface of backup pad 5 is equipped with the setting element that plays the flattening effect to waiting to weld the work piece on the base plate 2, plays the flattening effect to waiting to weld the work piece on the base plate 2 through the effect of setting element, reduces the possibility that waiting to weld the work piece because of high temperature deformation in friction stir welding process.

As shown in fig. 3, the positioning member comprises a pressing plate 14 located below the supporting plate 5, the long side direction of the pressing plate 14 is parallel to the long side direction of the supporting plate 5, two ends of the pressing plate 14 are sleeved outside the guide post 4 and slidably connected with the guide post 4, a self-locking assembly is arranged between the pressing plate 14 and the supporting plate 5, and when the pressing plate 14 presses a workpiece to be welded, the possibility of deformation of the workpiece to be welded due to high temperature is reduced through the action of the self-locking assembly.

As shown in fig. 3, the self-locking assembly comprises two first ear seats 10 fixedly connected with the lower end surface of the supporting plate 5, the bottom end of each first ear seat 10 is movably connected with a second connecting rod 11, one end of each second connecting rod 11, which is far away from the first ear seat 10, is movably connected with a third connecting rod 12, one end of each third connecting rod 12, which is far away from the second connecting rod 11, is movably connected with a second ear seat 13, one end of each second ear seat 13, which is far away from the third connecting rod 12, is fixedly connected with a pressing plate 14, a driving piece for driving the third connecting rod 12 and the second connecting rod 11 to rotate is arranged between two adjacent second connecting rods 11, the second connecting rod 11 and the third connecting rod 12 are driven to rotate through the action of the driving piece, and then the pressing plate 14 is driven to move up and down in the vertical direction, meanwhile, the second connecting rod 11 and the third connecting rod 12 can be self-locked, and the possibility that the pressing plate 14 deforms when the workpiece to be welded applies upward force to the pressing plate 14 in the use process is reduced.

As shown in fig. 1 and 3, the driving member comprises an electric push rod 6 fixedly connected with the top end of a supporting plate 5, an extension end of the electric push rod 6 penetrates through the supporting plate 5 and is in sliding connection with the supporting plate 5, an axial connecting column 7 is fixedly arranged at a part, extending out of the supporting plate 5 and between a pressing plate 14 and the supporting plate 5, of the extension end of the electric push rod 6, a transverse plate 8 is fixedly arranged at one end, far away from the electric push rod 6, of the connecting column 7, first connecting rods 9 are movably connected at four end corners of the outer surface of the transverse plate 8, one end, far away from the transverse plate 8, of the first connecting rods 9 is movably connected with a third connecting rod 12, the electric push rod 6 drives the connecting column 7 to move downwards under the action of the electric push rod 6, the downward movement of the connecting column 7 drives the transverse plate 8 fixedly connected with the connecting column 7 to move downwards, the downward movement of the transverse plate 8 drives the first connecting rods 9 movably connected with the transverse plate 8, the first connecting rod 9 moves downwards to drive the third connecting rod 12 movably connected with the first connecting rod 9 to rotate, the rotation of the third connecting rod 12 drives the second connecting rod 11 movably connected with the third connecting rod 12 to rotate, meanwhile, the rotation of the third connecting rod 12 drives the pressing plate 14 movably connected with the third connecting rod 12 to move downwards until the pressing plate 14 is abutted against the top end of a workpiece to be welded, the pressing plate 14 plays a role in pressing the workpiece to be welded, when the first connecting rod 9 rotates to enable the second connecting rod 11 and the third connecting rod 12 to be vertical, once the workpiece to be welded is heated and deformed, the pressing plate 14 has upward force, and no component force in an inclined direction is generated due to the fact that the directions of the second connecting rod 11 and the third connecting rod 12 are vertical, at the moment, the second connecting rod 11 and the third connecting rod 12 are self-locked and cannot rotate, and therefore the pressing plate 14 can not press the workpiece to be welded, and the workpiece to be welded cannot be deformed due to heating.

As shown in fig. 1 and 2, the upper end surface of the base 1 is fixedly provided with a plurality of quick clamps 3 which play a role in compacting the workpiece to be welded, the quick clamps 3 are positioned beside the base plate 2, the side edges of the workpiece to be welded play a role in compacting through the action of the quick clamps 3, the workpiece to be welded plays a role in positioning, the welding precision is improved, and the quick clamps 3 are in the prior art and are not described in excessive detail.

As shown in fig. 1, a friction stir welding device 15 for friction welding a workpiece to be welded is disposed at a middle position above the substrate 2, and the friction stir welding device 15 is of a conventional structure and will not be described in detail herein.

When the welding clamp is used, a power supply is switched on, a switch is turned on, a worker places a workpiece to be welded on the upper end face of the substrate 2, then the side edge of the workpiece to be welded is pressed by the action of the quick clamp 3, the guide post 4 is detachably and fixedly connected with the base 1, the worker can adjust the welding position of the workpiece to be welded according to the welding position of the workpiece to be welded, the guide post 4 is fixedly connected with the base 1 after the position is adjusted, the pressing plate 14 is positioned beside a welding position, and the pressing plate 14 is positioned above a common workpiece to be welded;

the electric push rod 6 is opened by a worker, the connecting column 7 is driven to move downwards through the action of the electric push rod 6, the transverse plate 8 fixedly connected with the connecting column 7 is driven to move downwards by the downward movement of the connecting column 7, the first connecting rod 9 movably connected with the transverse plate 8 is driven to rotate by the downward movement of the transverse plate 8, the second connecting rod 11 and the third connecting rod 12 movably connected with the first connecting rod 9 are driven to rotate by the rotation of the first connecting rod 9, the pressing plate 14 is driven to move downwards by the rotation of the second connecting rod 11 and the third connecting rod 12, the pressing plate 14 is pressed against the substrate 2, and then the transverse plate 8 continues to move downwards until the second connecting rod 11 and the third connecting rod 12 are in a vertical state;

at this time, the workpiece to be welded is compressed by the action of the pressure plate 14, and when the workpiece to be welded is subjected to friction welding under the action of the friction stir welding device 15, the friction stir welding device 15 is in the prior art, and will not be described in detail herein;

the workpiece to be welded is deformed at high temperature in the welding process, the pressing plate 14 is forced upwards, the second connecting rod 11 and the third connecting rod 12 are in a vertical state, the second connecting rod 11 and the third connecting rod 12 cannot rotate under the action of the upward force, the second connecting rod 11 and the third connecting rod 12 are self-locked, and the pressing plate 14 cannot move upwards, so that the possibility of high-temperature deformation of the workpiece to be welded is reduced under the action of the pressure of the pressing plate 14, and the workpiece to be welded is flattened;

after the welding is finished, the electric putter 6 is opened by the staff, so that the electric putter 6 drives the connecting column 7 and the transverse plate 8 to move upwards, the upward movement of the connecting column 7 and the transverse plate 8 can drive the first connecting rod 9 to rotate, the rotation of the first connecting rod 9 can enable the second connecting rod 11 and the third connecting rod 12 to rotate reversely, and then the pressing plate 14 is driven to move upwards, the work piece to be welded is convenient for the staff to take out, the use process of the flattening structure is the use process, and meanwhile, the content which is not described in detail in the specification belongs to the prior art known by the expert in the field.

It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.

Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a flattening structure, includes base (1), its characterized in that: the base (1) top has set firmly base plate (2) of placing the work piece of waiting to weld, four axial guide posts (4) have set firmly on base (1) top, guide post (4) are located the side of base plate (2), every two adjacent guide post (4) top fixed mounting has horizontal backup pad (5), the lower terminal surface of backup pad (5) is equipped with the setting element that plays flattening effect to the work piece of waiting to weld on base plate (2).

2. A flattening structure according to claim 1, wherein: the locating part is including being located clamp plate (14) of backup pad (5) below, the long limit direction of clamp plate (14) is parallel with the long limit direction of backup pad (5), the both ends of clamp plate (14) are all overlapped and are established in guide post (4) outside and slide with guide post (4) and be connected, be equipped with auto-lock subassembly between clamp plate (14) and backup pad (5).

3. A flattening structure according to claim 2, wherein: the self-locking assembly comprises two first ear seats (10) which are fixedly connected with the lower end face of a supporting plate (5), each first ear seat (10) is movably connected with a second connecting rod (11) at the bottom end, one end of each second connecting rod (11) away from the corresponding first ear seat (10) is movably connected with a third connecting rod (12), one end of each third connecting rod (12) away from each second connecting rod (11) is movably connected with a second ear seat (13), one end of each second ear seat (13) away from each third connecting rod (12) is fixedly connected with a pressing plate (14), and a driving piece for driving the corresponding third connecting rod (12) and the corresponding second connecting rod (11) to rotate is arranged between the two adjacent second connecting rods (11).

4. A flattening structure according to claim 3, wherein: the driving piece comprises an electric push rod (6) fixedly connected with the top end of a supporting plate (5), the extending end of the electric push rod (6) penetrates through the supporting plate (5) and is connected with the supporting plate (5) in a sliding mode, the extending end of the electric push rod (6) penetrates through the supporting plate (5) and extends to a connecting column (7) fixedly arranged on the portion between a pressing plate (14) and the supporting plate (5), one end of the connecting column (7) away from the electric push rod (6) is fixedly provided with a transverse plate (8), four end corners of the outer surface of the transverse plate (8) are movably connected with first connecting rods (9), and one end, away from the transverse plate (8), of the first connecting rods (9) is movably connected with a third connecting rod (12).

5. A flattening structure according to claim 1, wherein: the welding fixture is characterized in that a plurality of quick clamps (3) which play a role in compacting workpieces to be welded are fixedly arranged on the upper end face of the base (1), and the quick clamps (3) are located beside the base plate (2).

6. A flattening structure according to claim 1, wherein: and a friction stir welding device (15) for friction stir welding the workpieces to be welded is arranged at the middle position above the substrate (2).