Aluminum alloy friction stir welding clamp
By designing an aluminum alloy friction stir welding fixture and using a combination of fixed rods, reciprocating screws, brushes and transmission components to clean debris, the problem of debris fixation during the welding process is solved, production efficiency is improved, and through the use of motors, pulleys and splints The combination ensures the stability of the welded parts.
Patent Information
- Application Number
- CN202421106303.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-21
- Publication Date
- 2025-01-21
- Estimated Expiration
- 2034-05-21
AI Technical Summary
During friction stir welding, if the debris and waste on the surface of the welded part are not cleaned in time, it will cool down and be fixed on the welded part, increasing subsequent processing time and reducing production efficiency.
An aluminum alloy friction stir welding fixture is designed. Through the combination of a fixed rod, a reciprocating screw, a brush and a transmission component, the debris can be cleaned after the welding is completed, reducing the time of the grinding process, and through the combination of a motor, a pulley and a splint. , to ensure the stability of the welded parts during welding.
It effectively prevents debris from being fixed on the welded parts after cooling, reduces the time of subsequent grinding processes, improves production efficiency, ensures the stability of the welded parts, and avoids displacement during the welding process.
Smart Images
Figure CN222370618U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of friction stir welding, in particular to an aluminum alloy friction stir welding fixture. Background Art
[0002] Friction stir welding is a new welding technology invented by the British Welding Institute in 1991. Its principle is to use friction heat as a welding heat source. The welding process is that the stirring tool (stirring head) is inserted into the joint of the workpiece. The stirring head is subjected to an axial force perpendicular to the material to be welded while rotating at high speed. When there is intense friction between the stirring head and the material to be welded and a large amount of heat is generated, the material in the stirring friction zone undergoes severe plastic deformation. Then, as the stirring needle moves, the severely plastically deformed material flows to the rear end of the stirring needle, and then a high-quality, defect-free weld is formed under the extrusion of the shoulder.
[0003] During the welding process, the friction between the stirring head and the weldment will produce debris and waste. The debris and waste at this time are high in temperature and plastic. Failure to clean up these debris and waste in time will cause these debris and waste to be fixed on the surface of the weldment after cooling, thereby lengthening the processing time of subsequent processes. In this regard, in order to address this technical problem, the present application proposes an aluminum alloy stir friction welding fixture. Utility Model Content
[0004] The purpose of the utility model is to solve the shortcomings existing in the prior art, and to propose an aluminum alloy friction stir welding fixture, which can clean up the debris generated during welding after welding is completed through the combination of a fixed rod, a reciprocating screw, a brush and a transmission component, so as to avoid the debris being fixed on the welded part after cooling, thereby reducing the time of the subsequent grinding process and improving production efficiency; through the combination of motor 2, a driving pulley, a driven pulley, a threaded rod and a clamping plate, a welded part of a certain height can be clamped and fixed, so as to ensure the stability of the welded part during stir welding and avoid displacement of the welded part; the driving pulley drives the driven pulley to rotate through the belt, so as to ensure that the two clamping plates clamp the welded part at the same time, so as to ensure that the two welded parts are always aligned.
[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:
[0006] A friction stir welding fixture for aluminum alloys comprises a base, the top side of the base is rotatably connected with four threaded rods, the outer walls of the four threaded rods are threadedly connected with clamps, a welding part is arranged below the clamps, a through groove is arranged at the top end of the front side of the base, two slide grooves are arranged at the bottom side of the through groove, sliders are slidably connected in the two slide grooves, a collection box is fixedly connected to the bottom side of the slider, a cleaning assembly is arranged at the top side of the base, a motor 1 is installed at the rear side of the base, a transmission assembly is arranged at the driving end of the motor 1, and a motor 2 is arranged at the bottom side of the base.
[0007] Furthermore, the cleaning assembly includes two fixed rods located at the middle end of the top side of the base, the two fixed rods are fixedly connected to the base, and the adjacent sides of the two fixed rods are rotatably connected to a reciprocating screw, and the outer wall of the reciprocating screw is threadedly connected to a brush.
[0008] Furthermore, the bottom sides of the four threaded rods are fixedly connected with driven pulleys, the driving end of the motor 2 is provided with a driving pulley, and the driving pulley is connected to the driven pulley via a belt.
[0009] Furthermore, the transmission assembly includes a driving bevel gear located at a driving end of the motor, and the outer wall of the driving bevel gear is meshingly connected with a driven bevel gear.
[0010] Furthermore, the rear side of the reciprocating screw rod passes through the fixed rod, and the rear side of the reciprocating screw rod is fixedly connected to the driven bevel gear.
[0011] Furthermore, a stirring head is arranged on the top side of the base, a bracket is fixedly connected to the bottom side of the base, and a non-driving end of the motor 2 is connected to the bracket.
[0012] Furthermore, limit blocks are provided on the top sides of the four threaded rods.
[0013] The utility model has the following beneficial effects:
[0014] 1. In the utility model, through the combination of the fixed rod, the reciprocating screw, the brush and the transmission assembly, the debris generated during welding can be cleaned after welding is completed, so as to avoid the debris being fixed on the welded part after cooling, thereby reducing the time of the subsequent grinding process and improving the production efficiency.
[0015] 2. In the utility model, through the combination of motor 2, driving pulley, driven pulley, threaded rod and clamping plate, the welded parts of a certain height can be clamped and fixed, so as to ensure the stability of the welded parts during stirring welding and avoid displacement of the welded parts. The driving pulley drives the driven pulley to rotate through the belt, so as to ensure that the two clamping plates clamp the welded parts at the same time and ensure that the two welded parts are always aligned. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] Figure 1 A three-dimensional diagram of an aluminum alloy friction stir welding fixture proposed by the utility model;
[0017] Figure 2 This is a schematic diagram of the structure of a reciprocating screw of an aluminum alloy friction stir welding fixture proposed by the utility model;
[0018] Figure 3 This is a schematic structural diagram of a driven pulley of an aluminum alloy friction stir welding fixture proposed by the utility model;
[0019] Figure 4 The utility model is a schematic diagram of the structure of a collection box of an aluminum alloy friction stir welding fixture.
[0020] Legend:
[0021] 1. Base; 2. Threaded rod; 3. Clamp; 4. Fixed rod; 5. Reciprocating screw; 6. Brush; 7. Welding piece; 8. Collecting box; 9. Bracket; 10. Stirring head; 11. Motor 1; 12. Driving bevel gear; 13. Driven bevel gear; 14. Motor 2; 15. Driving pulley; 16. Driven pulley; 17. Through slot; 18. Slider. DETAILED DESCRIPTION
[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0023] Reference Figure 1-4The utility model provides an embodiment of an aluminum alloy friction stir welding fixture, including a base 1, the top side of the base 1 is rotatably connected with four threaded rods 2, the outer walls of the four threaded rods 2 are all threadedly connected with clamping plates 3, and the threaded rods 2 will move upward or downward with the clamping plates 3 when rotating, so as to release or clamp the welding part 7, and the welding part 7 is arranged under the clamping plates 3. A through groove 17 is opened on the top of the front side of the base 1. When cleaning the debris generated during the welding process, the brush 6 can sweep the debris into the collection box 8 under the through groove 17, and the collection box 8 can also be detachable through the slider 18, which is convenient for operation. The operator processes the debris in the collection box 8. Two slide grooves are provided on the bottom side of the through groove 17. Slide blocks 18 are slidably connected in the two slide grooves. The collection box 8 is fixedly connected to the bottom side of the slide block 18. A cleaning component is provided on the top side of the base 1. A motor 11 is installed on the rear side of the base 1. The motor 11 can drive the active bevel gear 12 to rotate, thereby driving the reciprocating screw 5 to rotate. A transmission component is provided at the driving end of the motor 11. A motor 2 14 is provided on the bottom side of the base 1. The motor 2 14 can rotate the active pulley 15, and the active pulley 15 rotates the driven pulley 16, thereby rotating the threaded rod 2.
[0024] The cleaning assembly includes two fixed rods 4 located at the middle end of the top side of the base 1. The two fixed rods 4 are fixedly connected to the base 1. The adjacent side of the two fixed rods 4 is rotatably connected to a reciprocating screw 5. The outer wall of the reciprocating screw 5 is threadedly connected to a brush 6. When the reciprocating screw 5 rotates, it can move the brush 6 on its outer wall back and forth, thereby cleaning the debris on the surface of the weldment 7. The bottom sides of the four threaded rods 2 are fixedly connected to a driven pulley 16. The driving end of the motor 2 14 is provided with a driving pulley 15. The driving pulley 15 and the driven pulley 16 are connected by a belt. The motor 2 14 can drive the driving pulley 15 to rotate. The driving pulley 15 drives the driven pulley 16 to rotate through the belt, thereby rotating the threaded rod 2. The transmission assembly includes an active bevel gear 12 located at the driving end of the motor 11, and the outer wall of the active bevel gear 12 is meshedly connected with a driven bevel gear 13. The motor 11 drives the active bevel gear 12 to rotate, and the active bevel gear 12 rotates with the driven bevel gear 13 meshed therewith, thereby rotating the reciprocating screw 5. The rear side of the reciprocating screw 5 passes through the fixed rod 4, and the rear side of the reciprocating screw 5 is fixedly connected to the driven bevel gear 13, and the driven bevel gear 13 rotates with the reciprocating screw 5. A stirring head 10 is provided on the top side of the base 1, and a bracket 9 is fixedly connected to the bottom side of the base 1, and the non-driving end of the motor 2 14 is connected to the bracket 9. Limit blocks are provided on the top sides of the four threaded rods 2, and the limit blocks can limit the clamping plate 3 to prevent the clamping plate 3 from falling off.
[0025] Working principle: first, place the welding part 7 on the base 1, and then the motor 2 14 drives the active pulley 15 to rotate, and the active pulley 15 rotates with the four driven pulleys 16 through the belt, and the four driven pulleys 16 rotate with the four threaded rods 2. Since the clamp 3 is threadedly connected, when the threaded rod 2 rotates, the clamp 3 will move up or down, thereby clamping and fixing the welding part 7 placed on the base 1, avoiding the movement of the welding part 7 during welding, and ensuring the stability of the welding part 7 during welding. After welding is completed, the motor 11 drives the active bevel gear 12 to rotate, and the active bevel gear 12 rotates with the driven bevel gear 13 meshing with it, and the driven bevel gear 13 rotates with the reciprocating screw 5. Since the brush 6 is threadedly connected to the reciprocating screw 5, when the reciprocating screw 5 rotates, it will move with the brush 6, thereby cleaning the debris generated on the surface of the welding part 7 during welding, avoiding the debris from being fixed on the welding part 7 after cooling, thereby reducing the time of the subsequent grinding process and improving production efficiency.
[0026] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.
Claims
1. An aluminum alloy friction stir welding fixture, comprising a base (1), characterized in that: The top side of the base (1) is rotatably connected to four threaded rods (2), the outer walls of the four threaded rods (2) are all threadedly connected to a clamping plate (3), a welding part (7) is arranged below the clamping plate (3), a through groove (17) is provided at the top of the front side of the base (1), two slide grooves are provided at the bottom side of the through groove (17), sliders (18) are slidably connected in the two slide grooves, and a collection box (8) is fixedly connected to the bottom side of the slider (18), a cleaning assembly is arranged on the top side of the base (1), a motor 1 (11) is installed on the rear side of the base (1), a transmission assembly is arranged at the driving end of the motor 1 (11), and a motor 2 (14) is arranged on the bottom side of the base (1).
2. The aluminum alloy friction stir welding fixture according to claim 1, characterized in that: The cleaning assembly comprises two fixed rods (4) located at the middle end of the top side of the base (1), the two fixed rods (4) are fixedly connected to the base (1), and the adjacent sides of the two fixed rods (4) are rotatably connected to a reciprocating screw (5), and the outer wall of the reciprocating screw (5) is threadedly connected to a brush (6).
3. The aluminum alloy friction stir welding fixture according to claim 1, characterized in that: The bottom sides of the four threaded rods (2) are all fixedly connected with driven pulleys (16), and the driving end of the second motor (14) is provided with a driving pulley (15), and the driving pulley (15) and the driven pulley (16) are connected by a belt.
4. The aluminum alloy friction stir welding fixture according to claim 1, characterized in that: The transmission assembly comprises a driving bevel gear (12) located at the driving end of the motor 1 (11), and the outer wall of the driving bevel gear (12) is meshingly connected with a driven bevel gear (13).
5. The aluminum alloy friction stir welding fixture according to claim 2, characterized in that: The rear side of the reciprocating screw rod (5) passes through the fixed rod (4), and the rear side of the reciprocating screw rod (5) is fixedly connected to the driven bevel gear (13).
6. The aluminum alloy friction stir welding fixture according to claim 1, characterized in that: A stirring head (10) is arranged on the top side of the base (1), a bracket (9) is fixedly connected to the bottom side of the base (1), and a non-driving end of the second motor (14) is connected to the bracket (9).
7. The aluminum alloy friction stir welding fixture according to claim 1, characterized in that: Limit blocks are arranged on the top sides of the four threaded rods (2).