CN219379327U - Consumption type friction stir welding device - Google Patents
Consumption type friction stir welding device Download PDFInfo
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- CN219379327U CN219379327U CN202320390143.2U CN202320390143U CN219379327U CN 219379327 U CN219379327 U CN 219379327U CN 202320390143 U CN202320390143 U CN 202320390143U CN 219379327 U CN219379327 U CN 219379327U
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- stir welding
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working
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Abstract
The utility model discloses a consumption type friction stir welding device, which belongs to the technical field of welding, and comprises the following components: a work table; moving the portal frame; the movable beam is positioned in the movable portal frame and can slide along the vertical direction relative to the movable portal frame; the first driving part is used for driving the moving beam to slide relative to the moving portal frame; a hollow sleeve, wherein a first end of the sleeve is fixedly connected with the movable beam, and a second end of the sleeve is a free end; the hollow shaft is rotatably connected with the sleeve; the core material passes through the central hole of the hollow shaft; the second driving part is used for driving the hollow shaft to rotate along the central axis of the hollow shaft so as to drive the core material to rotate; and the pressing part is arranged on the movable portal frame. According to the utility model, the core material can be accurately adjusted in feeding direction and feeding distance according to welding pieces with different sizes, the depth of the core material in the welding seam is adjusted, the core material and the welding seam can be preheated in advance, and the welding seam can be flattened and protected in time.
Description
Technical Field
The utility model belongs to the technical field of welding, and particularly relates to a consumption type friction stir welding device.
Background
Friction stir welding is a novel solid phase joining technique and was invented by the uk welding research in 1991. The process is that a stirring head consisting of a shaft shoulder and a stirring pin is inserted into a welding line and advances forwards while rotating at a high speed, the material to be welded is plasticized by using friction heat, plastic flow occurs under the drive of the stirring head, the welding line is formed under the forging and pressing action of the shaft shoulder, and the solid phase connection is realized.
The friction stir welding weldable materials include aluminum alloy, magnesium alloy, titanium alloy, steel and the like, and are widely used in the fields of aerospace, transportation, construction and the like. When the friction welding equipment is used, the stirring pin needs to be replaced, the welding piece needs to be limited and fixed, the stirring pin needs to be accurately positioned and fed, and the welding seam needs to be flattened and protected in time.
However, the stirring pin of the conventional friction stir welding device has small size, short welding distance, high welding cost, poor position fixing capability of a limiting mechanism on a welding piece, insufficient preheating of the stirring pin and a welding line, inaccurate feeding direction and feeding distance of the stirring head, incapability of flattening and protecting the welding line in time, dislocation of the welding piece and the welding line in the welding process, low welding efficiency and poor welding line forming quality.
Disclosure of Invention
The utility model aims to provide a friction stir welding device and a welding method, which have the advantages that the welding distance is long, the welding cost is low, the position of a welding part can be accurately fixed, the feeding direction and the feeding distance of core materials can be accurately adjusted according to welding parts with different sizes, meanwhile, the depth of the core materials in a welding line can be adjusted, and the core materials and the welding line can be preheated in advance, and can be flattened and protected in time.
In order to achieve the purpose of the utility model, the technical scheme adopted by the utility model is as follows:
a consumable friction stir welding apparatus comprising:
the workbench is used for placing a piece to be welded;
the movable portal frame comprises 2 vertical beams which are oppositely arranged and a cross beam which is fixedly connected between the 2 vertical beams; the vertical beam is slidably connected to the upper end of the workbench;
the movable beam is positioned in the movable portal frame and can slide relative to the movable portal frame along the vertical direction;
the first driving part is used for driving the movable beam to slide relative to the movable portal frame;
the first end of the hollow sleeve is fixedly connected with the movable beam, the second end of the sleeve is a free end, and the free end is positioned at one side of the movable beam away from the cross beam;
the first end of the hollow shaft is positioned in the hollow cavity of the sleeve, and the second end of the hollow shaft penetrates through the movable beam and extends out of the movable beam;
the core material passes through the central hole of the hollow shaft, and the first end of the core material extends to the outer side of the hollow shaft and is positioned between the cross beam and the movable beam; the second end of the core material extends to the outer side of the sleeve and is in contact with the piece to be welded;
the second driving part is used for driving the hollow shaft to rotate along the central axis of the hollow shaft so as to drive the core material to rotate;
and the pressing part is arranged on the movable portal frame and is used for pressing the first end of the core material so as to ensure that the second end of the core material is always in contact with the piece to be welded.
Further, a flattening and protecting mechanism is also included, the flattening and protecting mechanism includes:
the first end of the second leveling rod is at least partially slidably inserted into the first leveling rod, and a flange is arranged at a position, close to the end, of the second end of the second leveling rod;
a spring is arranged between the flange and the end face of the second end of the first flattening rod, a square frame is arranged at the second end of the second flattening rod, and a side edge, far away from the second flattening rod, of the square frame is rotatably connected with a roller; and a gas blowing hole is arranged between the second end part of the second flattening rod and the flange, and the outlet direction of the gas blowing hole points to the welded seam so as to protect the welded seam through a protective gas.
Further, the preheating device comprises a preheating mechanism, wherein the preheating mechanism comprises an electric heating wire wound on the inner wall of the sleeve, and the electric heating wire is used for preheating the core material in advance after being electrified.
Further, guide rails are arranged on two sides of the workbench, a sliding block is arranged at the lower end of the vertical beam, and the guide rails are in sliding fit with the sliding block.
Further, the device also comprises a ball screw transmission mechanism, wherein the ball screw transmission mechanism comprises a ball screw rotatably connected with the workbench and a screw nut arranged on the vertical beam.
Further, the first driving part is a hydraulic telescopic rod, the fixed end of the hydraulic telescopic rod is fixedly connected with the cross beam, and the driving end of the hydraulic telescopic rod is fixedly connected with the movable beam through a second flange.
Further, the second driving part comprises a motor arranged on the movable beam and a first gear arranged at the output end of the motor, a second gear is arranged at the first end of the hollow shaft, and the first gear is meshed with the second gear.
Further, the welding machine further comprises a compression block, and a limiting block and a blocking block which are oppositely arranged on the workbench, wherein the limiting block and the blocking block are used for positioning the workpiece to be welded; the compressing block is arranged on the workbench in a height-adjustable manner through a bolt and is used for compressing the workpiece to be welded.
Further, the welding machine also comprises a discharging mechanism, wherein the discharging mechanism is positioned on one side of the workbench and used for placing welded welding parts for cooling.
The utility model has the beneficial effects that:
compared with the prior art, the welding device has the advantages that the welding distance is longer, the welding cost is lower, the position of a welding piece can be accurately fixed, the core material can be accurately adjusted in the feeding direction and the feeding distance according to the welding pieces with different sizes, the depth of the core material in a welding line can be adjusted, the core material and the welding line can be preheated in advance, the welding line can be flattened and protected in time, and the position precision of the welding line, the welding efficiency and the forming quality of the welding piece are effectively improved.
Drawings
FIG. 1 is a schematic view of the overall structure of the present utility model;
FIG. 2 is a front elevational view of the overall structure of the present utility model;
FIG. 3 is a schematic structural view of a power transmission;
FIG. 4 is a left side elevational view of the overall structure of the present utility model;
FIG. 5 is a rear elevational view of the overall structure of the present utility model;
FIG. 6 is a top view of the overall structure of the present utility model;
FIG. 7 is a schematic diagram of a preheat configuration;
FIG. 8 is a schematic structural view of a core;
FIG. 9 is an enlarged view of a portion of the applanation and blow protection mechanism;
in the figure: 1. a support frame; 2. a guide rail; 3. a ball screw; 4. a work table; 5. moving the portal frame; 6. a hydraulic telescopic rod; 7. a motor; 8. a pressing section; 9. a second flange; 10. a moving beam; 11. flattening and protecting mechanism; 12. a compaction block; 13. a spring; 14. a limiting block; 15. a roller; 16. a piece to be welded; 17. a hollow shaft; 18. a second gear; 19. a blocking piece; 20. a sleeve; 21. core material; 22. a discharging mechanism; 23. heating wires; 24. and (5) blowing holes.
Detailed Description
The utility model provides a consumable friction stir welding device. The following detailed description of the present utility model is provided in connection with the accompanying drawings, so as to facilitate understanding and grasping thereof.
Example 1
Referring to fig. 1-9, a consumable friction stir welding apparatus comprising:
a workbench 4 for placing a piece 16 to be welded;
the movable portal frame 5 comprises 2 vertical beams which are oppositely arranged, and a cross beam which is fixedly connected between the 2 vertical beams; the vertical beam is slidably connected to the upper end of the workbench 4;
the movable beam 10 is positioned in the movable portal frame 5 and can slide along the vertical direction relative to the movable portal frame 5;
a first driving part for driving the moving beam 10 to slide relative to the moving gantry 5;
a hollow sleeve 20, a first end of the sleeve 20 is fixedly connected with the movable beam 10, a second end of the sleeve 20 is a free end, and the free end is positioned at one side of the movable beam 10 away from the cross beam;
a hollow shaft 17 rotatably connected with the sleeve 20, a first end of the hollow shaft 17 being positioned in the hollow cavity of the sleeve 20, and a second end of the hollow shaft 17 passing through the moving beam 10 and extending outside the moving beam 10;
a core 21, the core 21 passing through the central hole of the hollow shaft 17, the first end of the core 21 extending to the outside of the hollow shaft 17 and being located between the cross beam and the moving beam 10; the second end of the core 21 extends to the outside of the sleeve 20 to be in contact with the member 16 to be welded;
the second driving part is used for driving the hollow shaft 17 to rotate along the central axis of the hollow shaft, so as to drive the core material 21 to rotate;
a pressing part 8, the pressing part 8 is arranged on the movable portal frame 5 and is used for pressing the first end of the core material 21 so as to ensure that the second end of the core material 21 is always contacted with the piece 16 to be welded.
In this embodiment, the table 4 is fixedly mounted on the upper end of the support frame 1.
In this embodiment, the core 21 is a consumable material, and is formed by a flat cylinder made of the same material as the material to be welded; the sleeve 20 is a supporting body and is coaxially matched with the core 21 through a bearing, so that the sleeve is a non-consumable part; the second end of the core 21 extends 0 to 5 mm, preferably 1 to 3 mm, beyond the second end of the sleeve 20, wherein the second end of the sleeve 20 is submerged 0 to 0.3 mm, preferably 0.2 mm, into the surface of the workpiece.
The consumption type friction stir welding device provided by the implementation is longer in welding distance and lower in welding cost, and the accurate feeding direction and feeding distance can be adjusted according to welding pieces of different sizes.
Example 2
In order to timely flatten and protect the weld, this embodiment is further configured on the basis of embodiment 1.
The consumable friction stir welding device provided in this embodiment further includes a flattening and protecting mechanism, and the flattening and protecting mechanism 11 includes:
the first end of the first leveling rod is connected to the movable beam 10 through a first flange, the first end of the second leveling rod is at least partially slidably inserted into the first leveling rod, and a flange is arranged at a position, close to the end, of the second end of the second leveling rod;
a spring 13 is arranged between the flange and the end face of the second end of the first flattening rod, a square frame is arranged at the second end of the second flattening rod, and a side edge, far away from the second flattening rod, of the square frame is rotatably connected with a roller 15; a gas blowing hole 24 is arranged between the second end part of the second flattening rod and the flange, and the outlet direction of the gas blowing hole 24 points to the welded seam so as to protect the welded seam through a protecting gas.
Wherein, the rear of the sleeve 20 is provided with a roller and a blowing hole, which can flatten and protect the welding seam.
In this embodiment, a receiving cavity is provided in the second leveling rod, the receiving cavity being in communication with the air supply device, and the air blowing hole 24 being in communication with the receiving cavity.
Example 3
In order to accurately fix the position of the welding piece, the depth of the core material in the welding line can be adjusted, the core material and the welding line can be preheated in advance, the welding line is flattened and protected in time, the position accuracy of the welding line, the welding efficiency and the forming quality of the welding piece are effectively improved, and the embodiment is further arranged on the basis of the embodiment 2.
In this embodiment, the first driving part is a hydraulic telescopic rod 6, a fixed end of the hydraulic telescopic rod 6 is fixedly connected with the cross beam, and a driving end of the hydraulic telescopic rod 6 is fixedly connected with the movable beam 10 through a second flange 9.
By providing the first end of the core 21 with the pressing portion 8, the feeding distance in the pressing direction of the core drill 21 can be controlled.
In the present embodiment, the pressing portion 8 is one of a hydraulic telescopic rod, a hydraulic cylinder, an air cylinder, or other urging means.
In this embodiment, the second driving part includes a motor 7 disposed on the moving beam 10, a first gear disposed at an output end of the motor 7, and a second gear 18 disposed at a first end of the hollow shaft, and the first gear is engaged with the second gear 18.
Wherein the first gear and the second gear 18 are bevel gears. Wherein, the second gear 18 is sleeved outside the first end of the hollow shaft, and the rotation torque of the core 21 can be controlled by a bevel gear transmission mechanism arranged at the tail end of the core 21.
More specifically, the core 21 is housed in a hollow shaft 17 of the same cross-sectional shape, the hollow shaft 17 being fitted through bearings fixed to the travelling beam, with the inner bore of the second gear 18 (bevel gear).
The consumption type friction stir welding device of the embodiment further comprises a preheating mechanism, wherein the preheating mechanism comprises an electric heating wire 23 wound on the inner wall of the sleeve 20, and the electric heating wire 23 is used for preheating the core 21 and the welding seam in advance after being electrified.
In the embodiment, guide rails 2 are arranged on two sides of the workbench 4, a sliding block is arranged at the lower end of the vertical beam, and the guide rails 2 are in sliding fit with the sliding block.
The consumption friction stir welding device provided by the embodiment further comprises a ball screw transmission mechanism, wherein the ball screw transmission mechanism comprises a ball screw 3 rotatably connected with the workbench 4 and a screw nut arranged on the vertical beam.
The consumption friction stir welding device that this embodiment provided still includes third drive division, and third drive division is driving motor, and driving motor fixed mounting is on workstation 4, and driving motor's drive end is connected with ball screw 3's one end drive.
The two sides of the workbench 4 are provided with a ball screw transmission mechanism and a guide rail mechanism, so that the horizontal feeding direction and distance of the core material can be controlled.
The consumption friction stir welding device provided by the embodiment further comprises a compression block 12, a limiting block 14 and a blocking block 19 which are oppositely arranged on the workbench 4, wherein the limiting block 14 and the blocking block 19 are used for positioning a piece 16 to be welded; the pressing block 12 is arranged on the workbench 4 in a height-adjustable manner by bolts and is used for pressing the piece 16 to be welded.
In the present embodiment, the limiting block 14 and the blocking block 19 are two; wherein, two stopper 14 are located to wait to weld one side of piece 16, and two stop blocks 19 are located to wait to weld the opposite side of piece 16.
The stopper 14 is preferably triangular, and the blocking piece 19 is preferably L-shaped.
In the present embodiment, the number of the pressing blocks 12 is 2, and the pressing blocks are respectively located on the other 2 sides of the member to be welded 16.
The consumable friction stir welding device provided in this embodiment further includes a discharging mechanism 22, where the discharging mechanism 22 is located at one side of the workbench 4 and is used for placing a welded part after welding for cooling.
The unloading mechanism 22 is a workpiece placement platform in the prior art, and will not be described herein.
Example 4
A welding method of a consumable friction stir welding device, the consumable friction stir welding device provided in example 1, example 2 or example 3 being used for welding, the welding method comprising the steps of:
s10, placing a piece to be welded on a workbench, and fixing the piece to be welded by using a limiting block, a compression block and a blocking block;
s20, starting a hydraulic telescopic rod to push the movable beam to move downwards, so that the second ends of the sleeve and the core material extend into the groove of the welding line;
s30, pressing the roller at the top end of the flattening and protecting mechanism against the surface of the workpiece to be welded under the action of a spring;
s40, electrifying the electric heating wires in the sleeve, and starting to preheat the core material and the welding seam;
s50, after preheating is finished, opening a gas blowing hole, and starting a motor to start to rotate the core material;
s60, applying pressure to the first end of the core material by the pressure applying part, and generating heat by mutual friction after the second end of the core material is contacted with the surface of the piece to be welded;
s70, when the second end of the core material is gradually worn due to friction (namely, the part of the second end of the core material, which is higher than the sleeve, is completely consumed), the second end of the sleeve is abutted against the surface of the welding piece, and the moving portal frame is moved at a feeding speed of 10-500 mm/min;
s80, blowing out protective gas by the gas blowing hole to protect the welded seam, and flattening the welded seam by the roller to ensure the quality of the welded seam;
s90, opening the compression block, and placing the welding piece on a discharging mechanism for cooling;
s100, returning the movable portal frame to the initial position and feeding again to start the welding task of the next round.
While the foregoing has been described in terms of embodiments of the present utility model, it will be appreciated that the embodiments of the utility model are not limited by the foregoing description, but rather, all embodiments of the utility model may be modified in structure, method or function by one skilled in the art to incorporate the teachings of this utility model, as expressed in terms of equivalent or equivalent embodiments, without departing from the scope of the utility model.
Claims (9)
1. A consumable friction stir welding apparatus comprising:
the workbench is used for placing a piece to be welded;
the movable portal frame comprises 2 vertical beams which are oppositely arranged and a cross beam which is fixedly connected between the 2 vertical beams; the vertical beam is slidably connected to the upper end of the workbench;
the movable beam is positioned in the movable portal frame and can slide relative to the movable portal frame along the vertical direction;
the first driving part is used for driving the movable beam to slide relative to the movable portal frame;
the first end of the hollow sleeve is fixedly connected with the movable beam, the second end of the sleeve is a free end, and the free end is positioned at one side of the movable beam away from the cross beam;
the first end of the hollow shaft is positioned in the hollow cavity of the sleeve, and the second end of the hollow shaft penetrates through the movable beam and extends out of the movable beam;
the core material passes through the central hole of the hollow shaft, and the first end of the core material extends to the outer side of the hollow shaft and is positioned between the cross beam and the movable beam; the second end of the core material extends to the outer side of the sleeve and is in contact with the piece to be welded;
the second driving part is used for driving the hollow shaft to rotate along the central axis of the hollow shaft so as to drive the core material to rotate;
and the pressing part is arranged on the movable portal frame and is used for pressing the first end of the core material so as to ensure that the second end of the core material is always in contact with the piece to be welded.
2. The consumable friction stir welding apparatus of claim 1 further comprising a flattening and protecting mechanism comprising:
the first end of the second leveling rod is at least partially slidably inserted into the first leveling rod, and a flange is arranged at a position, close to the end, of the second end of the second leveling rod;
a spring is arranged between the flange and the end face of the second end of the first flattening rod, a square frame is arranged at the second end of the second flattening rod, and a side edge, far away from the second flattening rod, of the square frame is rotatably connected with a roller; and a gas blowing hole is arranged between the second end part of the second flattening rod and the flange, and the outlet direction of the gas blowing hole points to the welded seam so as to protect the welded seam through a protective gas.
3. The consumable friction stir welding apparatus of claim 1 further comprising a preheating mechanism comprising an electrical heating wire wrapped around an inner wall of the sleeve for preheating the core material in advance after energizing.
4. The consumable friction stir welding device according to claim 1, wherein guide rails are arranged on both sides of the workbench, a sliding block is arranged at the lower end of the vertical beam, and the guide rails are in sliding fit with the sliding block.
5. The friction stir welding apparatus of claim 4 further comprising a ball screw drive mechanism comprising a ball screw rotatably coupled to said table and a screw nut disposed on said vertical beam.
6. The consumable friction stir welding device of claim 1 wherein the first drive portion is a hydraulic telescoping rod, a fixed end of the hydraulic telescoping rod is fixedly connected with the cross beam, and a drive end of the hydraulic telescoping rod is fixedly connected with the travelling beam through a second flange.
7. The consumable friction stir welding device of claim 1 wherein the second drive portion comprises a motor disposed on the travelling beam, a first gear disposed at an output end of the motor, a second gear disposed at a first end of the hollow shaft, the first gear in meshing engagement with the second gear.
8. The consumable friction stir welding device of claim 1 further comprising a compression block, a stop block and a stop block disposed opposite the table, the stop block and stop block being used for positioning the piece to be welded; the compressing block is arranged on the workbench in a height-adjustable manner through a bolt and is used for compressing the workpiece to be welded.
9. The consumable friction stir welding apparatus of claim 1 further comprising a discharge mechanism located on one side of the table for placing a welded weldment for cooling.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320390143.2U CN219379327U (en) | 2023-03-03 | 2023-03-03 | Consumption type friction stir welding device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320390143.2U CN219379327U (en) | 2023-03-03 | 2023-03-03 | Consumption type friction stir welding device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219379327U true CN219379327U (en) | 2023-07-21 |
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ID=87170498
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320390143.2U Active CN219379327U (en) | 2023-03-03 | 2023-03-03 | Consumption type friction stir welding device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219379327U (en) |
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2023
- 2023-03-03 CN CN202320390143.2U patent/CN219379327U/en active Active
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