A friction stir welding device with adjustable weld depth
By introducing a servo motor drive mechanism and a guide structure into the friction stir welding device, the problem of low welding depth adjustment accuracy of traditional friction stir welding devices has been solved, achieving precise adjustment and self-cleaning functions, thereby improving welding quality and equipment adaptability.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- BEIJING SOONCABLE TECHNOLOGY GROUP CO LTD
- Filing Date
- 2025-08-11
- Publication Date
- 2026-07-21
AI Technical Summary
Traditional friction stir welding equipment has low precision in adjusting welding depth, is cumbersome to operate, and is difficult to achieve dynamic real-time adjustment.
The drive mechanism consists of a servo motor, screw, and threaded sleeve. Combined with the guide structure of guide column and guide hole, the welding depth is adjusted by lifting the lifting platform. It is equipped with a clamping structure and tilting design to facilitate the discharge of debris, and has a self-cleaning function for the air supply interface.
It achieves precise and stable adjustment of welding depth, improves welding quality and process adaptability, and has self-cleaning capability, thereby improving the operational stability and response speed of the equipment.
Smart Images
Figure CN224526213U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to a friction stir welding device, and more particularly to a friction stir welding device with adjustable welding depth. Background Technology
[0002] Friction stir welding, as a solid-state joining technology, is widely used in aerospace, rail transportation, shipbuilding and other fields, and is especially suitable for welding lightweight materials such as aluminum alloys and magnesium alloys.
[0003] In traditional friction stir welding equipment, the adjustment of welding depth usually depends on the overall height adjustment of the equipment or complex mechanical structure. The adjustment accuracy is low, the operation is cumbersome, and it is difficult to achieve dynamic real-time adjustment.
[0004] Therefore, how to provide a friction stir welding device that can accurately, stably, and conveniently adjust the welding depth has become a technical problem that urgently needs to be solved in this field. Utility Model Content
[0005] To overcome the shortcomings of low precision, cumbersome operation, and difficulty in achieving dynamic real-time adjustment, the technical problem to be solved is to provide an adjustable welding depth friction stir welding device.
[0006] The technical solution of this utility model is as follows: an adjustable welding depth friction stir welding device, including a machine platform, a movable seat, a gantry frame, a friction welding machine, a friction welding head, a clamping structure, and a drive mechanism. The movable seat is slidably provided on the top of the machine platform. The movable seat includes a sliding table and a lifting table. The sliding table is slidably connected to the machine platform. The lifting table is located above the sliding table. The gantry frame is installed on the machine platform. The friction welding machine is installed on the gantry frame. The friction welding head is provided at the lower end of the friction welding machine. The clamping structure is provided on the lifting table. The clamping structure is used to fix the welding workpiece. The drive mechanism is installed on the sliding table. The drive mechanism is used to drive the lifting table to rise and fall, so as to adjust the height of the lifting table and thus adjust the welding depth.
[0007] As a preferred technical solution of this utility model, the clamping structure includes bolts and L-shaped clamping blocks. The lifting platform has multiple threaded holes distributed at equal intervals. There are at least four bolts. The bolts are threadedly engaged with the threaded holes. Each bolt is fitted with an L-shaped clamping block on its outer side.
[0008] As a preferred technical solution of this utility model, the driving mechanism includes a servo motor, a screw and a threaded sleeve. The servo motor is mounted on the sliding table, the output shaft of the servo motor is connected to the screw, and the bottom of the lifting table is connected to the threaded sleeve, which is threadedly connected to the screw.
[0009] As a preferred technical solution of this utility model, the bottom of the lifting platform is provided with at least two guide columns, and the sliding platform is provided with guide holes that are adapted to the guide columns.
[0010] As a preferred technical solution of this utility model, it also includes a one-way baffle. The front and rear sides of the sliding table are movably connected with one-way baffles, and the front and rear ends of the top of the sliding table are tilted forward and backward respectively.
[0011] As a preferred technical solution of this utility model, it also includes an air supply interface, and the air supply interface is connected to the side of the sliding table.
[0012] As a preferred technical solution of this utility model, it also includes a sinking trough and a sealing frame. The sinking trough is provided in the middle of the sliding table, the servo motor is connected in the sinking trough, and the sealing frame is connected to the top of the lifting table. The sealing frame is slidably connected to the sinking trough.
[0013] Beneficial Effects: This invention, through a drive mechanism consisting of a servo motor, a screw, and a threaded sleeve, combined with a guide structure of guide columns and guide holes, can precisely control the lifting movement of the lifting platform. This allows for precise adjustment of the distance between the workpiece and the friction welding head, effectively ensuring the controllability and consistency of the welding depth. Simultaneously, the structure operates smoothly and responds quickly, allowing for dynamic adjustment of the welding depth during the welding process, significantly improving welding quality and process adaptability. Furthermore, the inclined design between the lifting platform and the sliding platform, along with the unidirectional baffle structure, facilitates the automatic discharge of welding debris. Combined with the design of the gas supply interface, this enhances the equipment's self-cleaning capability. Attached Figure Description
[0014] Figure 1 This is a three-dimensional structural diagram of the present invention.
[0015] Figure 2 This is a three-dimensional structural diagram of the movable base and the welded workpiece of this utility model.
[0016] Figure 3 This is a schematic diagram of the movable seat and clamping structure of this utility model.
[0017] Figure 4 This is a schematic diagram of the lifting platform and threaded sleeve of this utility model.
[0018] Figure 5 This is a schematic diagram of the servo motor and screw of this utility model.
[0019] The markings in the diagram are as follows: 1-Machine base, 2-Moving seat, 21-Sliding table, 22-Lifting table, 23-Clamping structure, 231-Threaded hole, 232-Bolt, 233-L-shaped clamping block, 24-Drive mechanism, 241-Servo motor, 242-Screw, 243-Threaded sleeve, 25-Guide column, 26-Guide hole, 27-One-way baffle, 28-Air supply interface, 3-Gantry frame, 4-Friction welding machine, 5-Friction welding head, 6-Sinking tank, 7-Sealing frame, 100-Welding workpiece. Detailed Implementation
[0020] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments, but this does not limit the scope of protection and application of the present invention.
[0021] An adjustable friction stir welding apparatus, such as Figures 1-5 As shown, the machine includes a platform 1, a movable seat 2, a gantry frame 3, a friction welding machine 4, a friction welding head 5, a clamping structure 23, and a drive mechanism 24. The movable seat 2 is slidably mounted on the top of the platform 1. The platform 1 is equipped with a linear module that drives the movable seat 2 to move horizontally, moving the movable seat 2 below the friction welding machine 4. The movable seat 2 includes a sliding table 21 and a lifting table 22. The linear module is connected to the sliding table 21, and the sliding table 21 is slidably connected to the platform 1. The lifting table 22 is located above the sliding table 21. A gantry is installed on the platform 1. The frame 3 is equipped with a friction welding machine 4. The gantry 3 is equipped with a sliding module that drives the friction welding machine 4 to move back and forth. The sliding module is used to adjust the front and back position of the friction welding machine 4 on the gantry 3. The lower end of the friction welding machine 4 is equipped with a friction welding head 5. The lifting platform 22 is equipped with a clamping structure 23, which is used to fix the welding workpiece 100. The drive mechanism 24 is installed on the sliding platform 21 and is used to drive the lifting platform 22 to rise and fall, so as to adjust the height of the lifting platform 22 and thus adjust the welding depth.
[0022] Furthermore, the clamping structure 23 includes bolts 232 and L-shaped clamping blocks 233. The lifting platform 22 has multiple threaded holes 231 evenly distributed. There are at least four bolts 232. The bolts 232 are threadedly engaged with the threaded holes 231. Each bolt 232 is fitted with an L-shaped clamping block 233 on its outer side. The lower part of the L-shaped clamping block 233 is provided with anti-slip texture to enhance the friction with the welding workpiece 100.
[0023] Furthermore, the drive mechanism 24 includes a servo motor 241, a screw 242, and a threaded sleeve 243. The servo motor 241 is installed at the top center of the sliding table 21. The output shaft of the servo motor 241 is connected to the screw 242 via a coupling. The threaded sleeve 243 is connected to the bottom main shaft of the lifting table 22. The threaded sleeve 243 is sleeved on the outside of the screw 242 and is threadedly connected to the screw 242.
[0024] Furthermore, the bottom of the lifting platform 22 is provided with four guide columns 25, and the sliding platform 21 is provided with four guide holes 26 that are adapted to the guide columns 25.
[0025] Furthermore, it also includes a one-way baffle 27. The front and rear sides of the sliding table 21 are movably connected to the one-way baffle 27 by hinges. The one-way baffle 27 can only be opened inward. The front and rear ends of the top of the sliding table 21 are tilted forward and backward respectively. The lowest point of the inner side of the sliding table 21 is flush with the lower end of the one-way baffle 27.
[0026] Furthermore, it also includes an air supply interface 28. Two air supply interfaces 28 are connected to the side of the sliding table 21, and an air valve (not shown in the figure) is provided on the air supply interface 28.
[0027] Furthermore, it also includes a sinking trough 6 and a sealing frame 7. The sinking trough 6 is provided in the middle of the sliding table 21. The servo motor 241 is connected inside the sinking trough 6. The top of the lifting table 22 is connected to the sealing frame 7. The sealing frame 7 is fitted inside the sinking trough 6 and is slidably connected to the sinking trough 6.
[0028] When welding workpiece 100 using this device, workpiece 100 is placed on top of lifting platform 22. According to the size of the welding tool, bolt 232 is screwed into the circumferential threaded hole 231. The L-shaped clamp 233 is rotated to position it on top of workpiece 100. Bolt 232 is continued to be screwed down, moving the L-shaped clamp 233 downward. The L-shaped clamp 233 is used to fix workpiece 100 on lifting platform 22. Then, friction welding machine 4 is started, and friction welding is performed on workpiece 100 through friction welding head 5. When the welding depth needs to be adjusted during the welding process, servo motor 241 can be started. Servo motor 241 drives screw 242 to rotate. Guide column 25 and guide hole 26 cooperate to guide. The rotation of screw 242 drives threaded sleeve 243 and lifting platform 22 to move up or down, adjusting the distance between workpiece 100 and friction welding head 5, thereby adjusting the welding depth. During friction stir welding, some debris may fall onto the sliding table 21 through the threaded hole 231. Since the front and rear ends of the top of the sliding table 21 are inclined forward and backward respectively, the debris falling onto the sliding table 21 can slide down along the inclined surface to the front and rear ends, pushing the one-way baffle 27 inward, and the debris can be discharged from the sliding table 21. If the threaded hole 231 is blocked by debris, a high-pressure gas source can be connected to the gas supply interface 28, the servo motor 241 can be started to drive the lifting platform 22 to move down and close with the sliding table 21, high-pressure gas can be input into the gas supply interface 28, the gas valve can be opened, the high-pressure gas can enter the sliding table 21 and push out the debris in the threaded hole 231, thus achieving the effect of clearing the blockage. Through the design of the sink trough 6 and the sealing frame 7, the servo motor 241 can be protected to prevent debris from adhering to the servo motor 241.
[0029] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present invention.
Claims
1. An adjustable welding depth friction stir welding device, comprising a machine platform (1), a movable seat (2), a gantry frame (3), a friction welding machine (4), and a friction welding head (5), wherein the movable seat (2) is slidably provided on the top of the machine platform (1), the gantry frame (3) is installed on the machine platform (1), the friction welding machine (4) is installed on the gantry frame (3), and the friction welding head (5) is provided at the lower end of the friction welding machine (4), characterized in that: It also includes a clamping structure (23) and a drive mechanism (24). The movable seat (2) includes a sliding table (21) and a lifting table (22). The sliding table (21) is slidably connected to the machine base (1). The lifting table (22) is located above the sliding table (21). The lifting table (22) is provided with a clamping structure (23). The clamping structure (23) is used to fix the welding workpiece (100). The drive mechanism (24) is installed on the sliding table (21). The drive mechanism (24) is used to drive the lifting table (22) to rise and fall, so as to adjust the height of the lifting table (22) and thus adjust the welding depth.
2. The adjustable welding depth friction stir welding device as described in claim 1, characterized in that: The clamping structure (23) includes bolts (232) and L-shaped clamps (233). The lifting platform (22) has multiple threaded holes (231) evenly distributed. There are at least four bolts (232). The bolts (232) are threadedly engaged with the threaded holes (231). Each bolt (232) is fitted with an L-shaped clamp (233) on its outer side.
3. The adjustable welding depth friction stir welding device as described in claim 2, characterized in that: The drive mechanism (24) includes a servo motor (241), a screw (242) and a threaded sleeve (243). The servo motor (241) is mounted on the sliding table (21). The screw (242) is connected to the output shaft of the servo motor (241). The threaded sleeve (243) is connected to the bottom of the lifting table (22). The threaded sleeve (243) is threadedly connected to the screw (242).
4. The adjustable welding depth friction stir welding device as described in claim 3, characterized in that: The bottom of the lifting platform (22) is provided with at least two guide columns (25), and the sliding platform (21) is provided with guide holes (26) that are adapted to the guide columns (25).
5. The adjustable welding depth friction stir welding device as described in claim 4, characterized in that: It also includes a one-way baffle (27), and the front and rear sides of the sliding table (21) are movably connected with the one-way baffle (27), and the front and rear ends of the top of the sliding table (21) are tilted forward and backward respectively.
6. The adjustable welding depth friction stir welding device as described in claim 5, characterized in that: It also includes an air supply interface (28), and the side of the sliding table (21) is connected to the air supply interface (28).
7. The adjustable welding depth friction stir welding device as described in claim 6, characterized in that: It also includes a sinking trough (6) and a sealing frame (7). The sinking trough (6) is provided in the middle of the sliding table (21). The servo motor (241) is connected in the sinking trough (6). The top of the lifting table (22) is connected to the sealing frame (7). The sealing frame (7) is slidably connected to the sinking trough (6).