Friction stir welding device for radiator machining

Abstract

The invention discloses a friction stir welding device for radiator machining, and relates to the technical field of radiator machining. According to the friction stir welding device for radiator machining, through cooperation of the fixing plate and the positioning pressing plate, two clamped to-be-welded workpieces can be driven to be attached to each other along with sliding of the two right-angle side frames towards the welding position in the welding process, and through cooperation of the positioning pressing plate, the welding efficiency is improved; the extrusion force can be applied to the weld joint of the two to-be-welded workpieces, the attaching effect of the weld joint position is guaranteed, the to-be-welded workpieces are supported through cooperation of the middle supporting frame in the welding process, and compared with a traditional positioning welding mode, the welding effect and welding stability of the weld joint can be improved; and meanwhile, the phenomenon that the to-be-welded plate is pressed to deform in the welding process can be avoided, and the welding effect of the welding seam is guaranteed.

Description

Technical Field

[0001] The invention relates to the technical field of radiator processing, in particular to a friction stirring welding device for radiator processing. Background Art

[0002] Compared with traditional fusion welding, friction stir welding has the advantages of high welding joint quality, which can achieve weld strength equal to the strength of the base material, high welding efficiency and stable quality. When processing the radiator, friction welding is usually used for welding. Referring to the Chinese patent, the application number is "202123019962.6" for "A friction stir welding device for processing new energy radiators", which points out that the existing friction stir welding devices generally use a clamp to fix the two sides of the workpiece weld during operation. This fixing method cannot be adjusted in real time according to the change of the welding position of the machine head, and it is impossible to achieve full compression on both sides of the weld. Therefore, slight deformation, warping, and misalignment are inevitable, which affect the quality of the friction stir welding weld of the radiator; however, this positioning method has the problem that the positioning is cumbersome and easy to cause the gap at the weld to be too large, which affects the subsequent welding effect. In this regard, we propose a friction stir welding device for radiator processing to solve the above problems. Summary of the invention

[0003] In view of the shortcomings of the prior art, the present invention provides a stir friction welding device for radiator processing, which solves the problems raised in the above background technology.

[0004] To achieve the above objectives, the present invention is implemented through the following technical solutions: A friction stir welding device for radiator processing, comprising a body, a driving frame is installed on the top surface of the body, and a driving rod is arranged inside the driving frame, and the end of the driving rod is connected to a friction stir welding end head for welding the workpiece to be welded, and right-angle side frames are slidably connected to both sides of the body to support the workpiece to be welded and drive two placed workpieces to be welded to be merged; A fixing plate is fixedly installed on the top surface of the right-angle side frame, and a positioning pressing plate is slidably connected to the inside of the fixing plate, which is used to clamp and fix the workpiece to be welded. A pushing cylinder is fixedly installed in the middle of the top surface of the fixing plate, which is used to drive the positioning pressing plate to slide up and down inside the corresponding fixing plate; A middle support frame is provided between the two positioning pressure plates. The middle support frame is used to move between the two positioning pressure plates along with the driving rod. Multiple spherical bodies are rotatably connected on both sides of the middle support frame. The sides of the two positioning pressure plates are provided with limiting grooves adapted to the spherical bodies.

[0005] Preferably, the bottom of the middle support frame is rotatably connected with a driving roller and a transmission cleaning rod, and a transmission chain for transmission is rotatably connected between the ends of the driving roller and the transmission cleaning rod. Both ends of the driving roller are fixedly sleeved with rubber wheels, and a plurality of elastic cleaning scrapers are fixedly installed on the outer side of the transmission cleaning rod for cleaning the welds of the workpiece to be welded.

[0006] Preferably, a conveying pipe is fixedly installed inside the middle support frame, and the end of the conveying pipe is connected to a negative pressure fan for extracting and collecting the cleaned impurities.

[0007] Preferably, a positioning ring is sleeved on the outer side of the driving rod, and a connecting rod is fixedly installed on the outer side of the positioning ring, and the middle support frame is fixedly installed on the end of the connecting rod.

[0008] Preferably, both ends of the fixed plate are fixedly mounted with limit slide bars, the limit slide bars are fixedly mounted on the top surface of the right-angle side frame, and the positioning pressure plate is slidably sleeved on the outer sides of the two limit slide bars.

[0009] Preferably, the positioning pressing plate always remains parallel to the corresponding right-angle side frame.

[0010] Preferably, a plurality of limit slides are fixed on both sides of the interior of the body, a plurality of sliders are fixedly installed on the bottom of the right-angle side frames on both sides, the sliders are slidably connected to the inside of the corresponding limit slides, and support frames are fixedly installed on both sides of the bottom of the body.

[0011] Preferably, driving cylinders are fixedly installed on both sides of the interior of the machine body, and the piston ends of the driving cylinders are fixedly connected to the corresponding right-angle side frames to drive the right-angle side frames to slide inside the machine body.

[0012] Preferably, a bottom support plate is provided at the inner center of the machine body, the installation position of the bottom support plate is located directly below the friction stir welding end, and telescopic sleeve rods are provided on both sides of the bottom of the bottom support plate.

[0013] Preferably, a lifting cylinder is fixedly installed at the bottom of the machine body, which is used to drive the bottom support plate to slide up and down to support the workpiece to be welded.

[0014] The present invention provides a friction stir welding device for radiator processing. Compared with the prior art, it has the following beneficial effects: (1) The friction stir welding device for radiator processing, through the cooperation of the fixing plate and the positioning pressure plate, can drive the two clamped workpieces to be welded to fit together as the two right-angle side frames slide toward the welding position during the welding process, and through the cooperation of the positioning pressure plate, can apply extrusion force to the two workpieces to be welded to ensure the fitting effect of the weld position, and through the cooperation of the middle support frame during the welding process, the workpiece to be welded is supported. Compared with the traditional positioning welding method, the welding effect and welding stability at the weld can be improved, and at the same time, the phenomenon of deformation of the plate to be welded due to pressure during the welding process can be avoided, thereby ensuring the welding effect at the weld.

[0015] (2) The friction stir welding device for radiator processing, through the cooperation of the middle support frame, as the rubber wheels sleeved at both ends of the driving roller contact the workpiece to be welded, can drive the transmission cleaning rod and multiple elastic cleaning scrapers to rotate through the cooperation of the transmission chain, so as to clean the welding position of the workpiece to be welded, further ensuring the subsequent friction welding effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 For the present invention Figure 1 Schematic diagram of the cross-section structure; Figure 3 For the present invention Figure 2 Sectional front view; Figure 4 For the present invention Figure 3 The enlarged structural diagram at A in the middle; Figure 5 It is a schematic diagram of the structure of the fixing plate and the positioning pressing plate of the present invention; Figure 6 For the present invention Figure 5 The enlarged structural diagram at B in the middle; Figure 7 It is a schematic diagram of the cross-sectional structure of the middle support frame of the present invention; Figure 8 For the present invention Figure 7 Enlarged structural diagram at point C in the middle.

[0017] In the figure: 1, machine body; 101, support frame; 2, driving frame; 3, driving rod; 301, stir friction welding end; 4, right-angle side frame; 401, slider; 5, limiting slide; 6, driving cylinder; 7, fixing plate; 701, pushing cylinder; 702, limiting slide; 8, positioning pressure plate; 801, limiting notch; 9, bottom support plate; 901, telescopic sleeve; 10, workpiece to be welded; 11, middle support frame; 1101, connecting rod; 1102, positioning ring; 12, conveying pipe; 13, driving roller; 1301, rubber wheel; 14, transmission cleaning rod; 1401, elastic cleaning scraper; 15, transmission chain; 16, spherical body. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0019] See also Figure 1-Figure 8 The present invention provides two technical solutions, which specifically include the following embodiments: Embodiment 1: In the embodiment of the present invention, reference Figure 1-Figure 4 A friction stir welding device for radiator processing includes a body 1, a driving frame 2 is installed on the top surface of the body 1, and a driving rod 3 is arranged inside the driving frame 2, and the end of the driving rod 3 is connected with a friction stir welding end 301 for welding a workpiece 10 to be welded. Both sides of the body 1 are slidably connected with right-angle side frames 4 for supporting the workpiece 10 to be welded and driving two placed workpieces 10 to be welded to be merged. The driving frame 2 is an existing device, which can be used to drive the driving rod 3 and the friction stir welding end 301 to translate along the weld to perform welding operations. The driving rod 3 is used to drive the friction stir welding end 301 to translate up and down, so that the end of the friction stir welding end 301 contacts the workpiece 10 to be welded for friction welding. The existing device of the friction stir welding end 301 is not described here. refer to Figure 3-Figure 8, a fixing plate 7 is fixedly installed on the top surface of the right-angle side frame 4, and a positioning pressure plate 8 is connected to the inside of the fixing plate 7 for sliding up and down, which is used to clamp and fix the workpiece 10 to be welded. A pushing cylinder 701 is fixedly installed in the middle of the top surface of the fixing plate 7, which is used to drive the positioning pressure plate 8 to slide up and down inside the corresponding fixing plate 7. During welding, the workpieces 10 to be welded are placed inside the corresponding right-angle side frame 4 respectively. After the placement is completed, the side protrusion length of the workpiece 10 to be welded close to the weld position is confirmed, and then the positioning pressure plate 8 is moved down to fix the placed workpiece 10 to be welded. During the welding process, as the two right-angle side frames 4 slide toward the welding position, the two clamped workpieces 10 to be welded can be driven to fit each other, and through the cooperation of the positioning pressure plate 8, an extrusion force is applied to the two workpieces 10 to be welded to ensure the fitting effect of the weld position, and then as the stir friction welding end 301 runs along the weld, the welding process of the workpiece 10 to be welded is realized; For further reference, Figure 3 , Figure 4 A middle support frame 11 is provided between the two positioning plates 8. The middle support frame 11 is used to move between the two positioning plates 8 along with the driving rod 3. A plurality of spherical bodies 16 are rotatably connected to both sides of the middle support frame 11. The sides of the two positioning plates 8 are provided with limiting grooves 801 adapted to the spherical bodies 16. The middle support frame 11 can move downward along with the driving rod 3 until it is inserted between the two positioning plates 8. At this time, reference is made to Figure 4 When the driving rod 3 drives the friction stir welding end 301 to run along the weld, the middle support frame 11 can translate between the two positioning plates 8 through the spherical bodies 16 on both sides, which plays a guiding role on the one hand, and can also avoid the phenomenon that the weld of the workpiece 10 to be welded is heated and the squeeze force on both sides is applied during the welding process, which causes the workpiece 10 to be welded to be deformed and the weld is compressed and bulged, thereby effectively improving the welding effect of the weld of the workpiece 10 to be welded; Specifically, refer to Figure 7 , a positioning ring 1102 is sleeved on the outer side of the driving rod 3, and a connecting rod 1101 is fixedly installed on the outer side of the positioning ring 1102, and the middle support frame 11 is fixedly installed on the end of the connecting rod 1101; Specifically, both ends of the fixed plate 7 are fixedly installed with limit slide bars 702, and the limit slide bars 702 are fixedly installed on the top surface of the right-angle side frame 4. The positioning pressing plate 8 is slidably sleeved on the outer sides of the two limit slide bars 702. As the push cylinder 701 runs, it can drive the positioning pressing plate 8 to slide up and down to achieve the clamping operation of the workpiece 10 to be welded; Specifically, the positioning plate 8 and the corresponding right-angle side frame 4 are always kept parallel; Specifically, a plurality of limit slides 5 are fixed on both sides of the interior of the machine body 1, a plurality of sliders 401 are fixedly installed on the bottom of the right-angle side frames 4 on both sides, and the sliders 401 are slidably connected to the inside of the corresponding limit slides 5, and support frames 101 are fixedly installed on both sides of the bottom of the machine body 1; Specifically, drive cylinders 6 are fixedly installed on both sides of the interior of the body 1 , and piston ends of the drive cylinders 6 are fixedly connected to corresponding right-angle side frames 4 for driving the right-angle side frames 4 to slide inside the body 1 .

[0020] Embodiment 2: Based on Embodiment 1, in the embodiment of the present invention, reference is made to Figure 1-Figure 4 A friction stir welding device for radiator processing includes a body 1, a driving frame 2 is installed on the top surface of the body 1, and a driving rod 3 is arranged inside the driving frame 2, and the end of the driving rod 3 is connected with a friction stir welding end 301 for welding a workpiece 10 to be welded. Both sides of the body 1 are slidably connected with right-angle side frames 4 for supporting the workpiece 10 to be welded and driving two placed workpieces 10 to be welded to be merged. The driving frame 2 is an existing device, which can be used to drive the driving rod 3 and the friction stir welding end 301 to translate along the weld to perform welding operations. The driving rod 3 is used to drive the friction stir welding end 301 to translate up and down, so that the end of the friction stir welding end 301 contacts the workpiece 10 to be welded for friction welding. The existing device of the friction stir welding end 301 is not described here. refer to Figure 3-Figure 8 , a fixing plate 7 is fixedly installed on the top surface of the right-angle side frame 4, and a positioning pressure plate 8 is connected to the inside of the fixing plate 7 for sliding up and down, which is used to clamp and fix the workpiece 10 to be welded. A pushing cylinder 701 is fixedly installed in the middle of the top surface of the fixing plate 7, which is used to drive the positioning pressure plate 8 to slide up and down inside the corresponding fixing plate 7. During welding, the workpieces 10 to be welded are placed inside the corresponding right-angle side frame 4 respectively. After the placement is completed, the side protrusion length of the workpiece 10 to be welded close to the weld position is confirmed, and then the positioning pressure plate 8 is moved down to fix the placed workpiece 10 to be welded. During the welding process, as the two right-angle side frames 4 slide toward the welding position, the two clamped workpieces 10 to be welded can be driven to fit each other, and through the cooperation of the positioning pressure plate 8, an extrusion force is applied to the two workpieces 10 to be welded to ensure the fitting effect of the weld position, and then as the stir friction welding end 301 runs along the weld, the welding process of the workpiece 10 to be welded is realized; For further reference, Figure 3 , Figure 4A middle support frame 11 is provided between the two positioning plates 8. The middle support frame 11 is used to move between the two positioning plates 8 along with the driving rod 3. A plurality of spherical bodies 16 are rotatably connected to both sides of the middle support frame 11. The sides of the two positioning plates 8 are provided with limiting grooves 801 adapted to the spherical bodies 16. The middle support frame 11 can move downward along with the driving rod 3 until it is inserted between the two positioning plates 8. At this time, reference is made to Figure 4 When the driving rod 3 drives the friction stir welding end 301 to run along the weld, the middle support frame 11 can translate between the two positioning plates 8 through the spherical bodies 16 on both sides, which plays a guiding role on the one hand, and can also avoid the phenomenon that the weld of the workpiece 10 to be welded is heated and the squeeze force on both sides is applied during the welding process, which causes the workpiece 10 to be welded to be deformed and the weld is compressed and bulged, thereby effectively improving the welding effect of the weld of the workpiece 10 to be welded; For further reference, Figure 7 , Figure 8 , the bottom of the middle support frame 11 is rotatably connected with a driving roller 13 and a transmission cleaning rod 14, and a transmission chain 15 for transmission is rotatably connected between the ends of the driving roller 13 and the transmission cleaning rod 14. Both ends of the driving roller 13 are fixedly sleeved with rubber wheels 1301, and the outer side of the transmission cleaning rod 14 is fixedly installed with a plurality of elastic cleaning scrapers 1401 for cleaning the weld of the workpiece 10 to be welded. When the middle support frame 11 moves along the weld with the operation of the stir friction welding end 301, as the rubber wheels 1301 sleeved at both ends of the driving roller 13 contact the workpiece 10 to be welded, the transmission cleaning rod 14 and the plurality of elastic cleaning scrapers 1401 can be driven to rotate through the cooperation of the transmission chain 15, and the welding position of the workpiece 10 to be welded is cleaned, thereby further ensuring the subsequent friction welding effect. The transmission chain 15 is an existing device, which can cooperate with the sprocket to realize the transmission operation. The sprocket is not shown in the figure; Furthermore, a conveying pipe 12 is fixedly installed inside the middle support frame 11, and a negative pressure fan is connected to the end of the conveying pipe 12. The negative pressure fan is an existing device. By turning on the negative pressure fan, it can be used to extract and collect the cleaned impurities, thereby improving the maintenance convenience of the equipment; Specifically, refer to Figure 7 , a positioning ring 1102 is sleeved on the outer side of the driving rod 3, and a connecting rod 1101 is fixedly installed on the outer side of the positioning ring 1102, and the middle support frame 11 is fixedly installed on the end of the connecting rod 1101; Specifically, both ends of the fixed plate 7 are fixedly installed with limit slide bars 702, and the limit slide bars 702 are fixedly installed on the top surface of the right-angle side frame 4. The positioning pressing plate 8 is slidably sleeved on the outer sides of the two limit slide bars 702. As the push cylinder 701 runs, it can drive the positioning pressing plate 8 to slide up and down to achieve the clamping operation of the workpiece 10 to be welded; Specifically, the positioning plate 8 and the corresponding right-angle side frame 4 are always kept parallel; Specifically, a plurality of limit slides 5 are fixed on both sides of the interior of the machine body 1, a plurality of sliders 401 are fixedly installed on the bottom of the right-angle side frames 4 on both sides, and the sliders 401 are slidably connected to the inside of the corresponding limit slides 5, and support frames 101 are fixedly installed on both sides of the bottom of the machine body 1; Specifically, a driving cylinder 6 is fixedly installed on both sides of the interior of the machine body 1, and the piston end of the driving cylinder 6 is fixedly connected to the corresponding right-angle side frame 4, which is used to drive the right-angle side frame 4 to slide inside the machine body 1; Furthermore, a bottom support plate 9 is provided at the inner center of the machine body 1. The installation position of the bottom support plate 9 is located directly below the friction stir welding end 301. Both sides of the bottom of the bottom support plate 9 are provided with telescopic sleeve rods 901. A lifting cylinder is fixedly installed at the bottom of the machine body 1, which is used to drive the bottom support plate 9 to slide up and down to support the workpiece 10 to be welded. The lifting cylinder is an existing device. When the equipment is running to weld the workpiece 10 to be welded, as the bottom support plate 9 moves upward, it can support the bottom of the workpiece 10 to be welded, avoiding deformation caused by pressure on the weld during welding, thereby ensuring welding strength and welding effect.

[0021] Meanwhile, the contents not described in detail in this specification belong to the prior art known to those skilled in the art.

[0022] The above is a detailed description of an embodiment of the present invention, but the content is only a preferred embodiment of the present invention and cannot be considered to limit the scope of implementation of the present invention. All equivalent changes and improvements made within the scope of the present invention should still fall within the scope of the present invention.

Claims

1. A friction stir welding device for processing a radiator, comprising a body (1), a driving frame (2) being mounted on the top surface of the body (1), a driving rod (3) being arranged inside the driving frame (2), an end of the driving rod (3) being connected to a friction stir welding end (301), and being used for welding a workpiece (10) to be welded, characterized in that: Both sides of the interior of the machine body (1) are slidably connected with right-angle side frames (4) for supporting the workpieces to be welded (10) and driving two placed workpieces to be welded (10) to be merged; A fixing plate (7) is fixedly mounted on the top surface of the right-angle side frame (4), and a positioning pressing plate (8) is slidably connected to the inside of the fixing plate (7) for clamping and fixing the workpiece (10) to be welded, and a pushing cylinder (701) is fixedly mounted on the middle part of the top surface of the fixing plate (7) for driving the positioning pressing plate (8) to slide up and down inside the corresponding fixing plate (7); A middle support frame (11) is provided between the two positioning pressure plates (8). The middle support frame (11) is used to move between the two positioning pressure plates (8) along with the driving rod (3). Both sides of the middle support frame (11) are rotatably connected to a plurality of spherical bodies (16). The sides of the two positioning pressure plates (8) are provided with limiting grooves (801) adapted to the spherical bodies (16).

2. The friction stir welding device for heat sink processing according to claim 1, characterized in that: The bottom of the middle support frame (11) is rotatably connected to a driving roller (13) and a transmission cleaning rod (14), respectively; a transmission chain (15) for transmission is rotatably connected between the ends of the driving roller (13) and the transmission cleaning rod (14); both ends of the driving roller (13) are fixedly sleeved with rubber wheels (1301); and a plurality of elastic cleaning scrapers (1401) are fixedly mounted on the outer side of the transmission cleaning rod (14) for cleaning the weld of the workpiece (10) to be welded.

3. The friction stir welding device for heat sink processing according to claim 2, characterized in that: A conveying pipe (12) is fixedly installed inside the middle support frame (11), and the end of the conveying pipe (12) is connected to a negative pressure fan for extracting and collecting cleaned impurities.

4. The friction stir welding device for heat sink processing according to claim 1, characterized in that: A positioning ring (1102) is sleeved on the outer side of the driving rod (3), and a connecting rod (1101) is fixedly mounted on the outer side of the positioning ring (1102), and the middle support frame (11) is fixedly mounted on the end of the connecting rod (1101).

5. The friction stir welding device for heat sink processing according to claim 1, characterized in that: Limiting slide bars (702) are fixedly mounted on both ends of the fixing plate (7), the limiting slide bars (702) are fixedly mounted on the top surface of the right-angle side frame (4), and the positioning pressing plate (8) is slidably sleeved on the outer sides of the two limiting slide bars (702).

6. The friction stir welding device for heat sink processing according to claim 5, characterized in that: The positioning pressing plate (8) and the corresponding right-angle side frame (4) always remain parallel.

7. The friction stir welding device for heat sink processing according to claim 1, characterized in that: A plurality of limit slides (5) are fixed on both sides of the interior of the machine body (1), a plurality of sliders (401) are fixedly mounted on the bottom of the right-angle side frames (4) on both sides, the sliders (401) are slidably connected to the inside of the corresponding limit slides (5), and support frames (101) are fixedly mounted on both sides of the bottom of the machine body (1).

8. The friction stir welding device for heat sink processing according to claim 7, characterized in that: A driving cylinder (6) is fixedly mounted on both sides of the interior of the machine body (1), and a piston end of the driving cylinder (6) is fixedly connected to a corresponding right-angle side frame (4) for driving the right-angle side frame (4) to slide inside the machine body (1).

9. The friction stir welding device for heat sink processing according to claim 1, characterized in that: A bottom support plate (9) is provided at the inner center of the machine body (1); the installation position of the bottom support plate (9) is located directly below the friction stir welding end (301); and telescopic sleeve rods (901) are provided on both sides of the bottom of the bottom support plate (9).

10. The friction stir welding device for heat sink processing according to claim 9, characterized in that: A lifting cylinder is fixedly mounted on the bottom of the machine body (1) and is used to drive the bottom support plate (9) to slide up and down to support the workpiece (10) to be welded.

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