Up-down synchronous heavy load type friction stir welding equipment
By designing alignment, compression and fixing devices in the up-down synchronous heavy-load friction stir welding equipment, the problem of poor accuracy during manual correspondence is solved, and the welding accuracy and quality improvement is achieved.
Patent Information
- Application Number
- CN202510270227.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-07
- Publication Date
- 2025-05-06
AI Technical Summary
During welding, the existing high-load heavy-load friction stir welding equipment for upper and lower synchronization, due to manual and manual correspondence between the stirring needle and the welding point, resulting in poor accuracy and low welding quality.
A high-load friction stir welding device for synchronously high-load type, including a alignment device, a pressing device and a fixing device, is designed to accurately position and fix the aluminum alloy plates to ensure that the stirring needle is in the central position during welding.
It improves welding accuracy and quality, reduces the offset between the welding point and the stirring needle, reduces labor intensity, and improves work efficiency.
Smart Images
Figure CN119927407A_ABST
Abstract
Description
Technical Field
[0001] The invention relates to the field of mechanical equipment, and in particular to an upper and lower synchronous heavy-load friction stir welding device. Background Art
[0002] Friction stir welding is a solid-state connection technology that uses the heat generated by friction to achieve plate connection. Compared with ordinary friction welding, the welded joints have higher quality; they are not restricted by shaft parts; they are easy to mechanize and automate; the welding cost is low and the efficiency is high; the welding deformation is small and the precision is high; it is green welding; it has shown significant technical and economic benefits in the manufacture of lightweight and various aluminum alloy profile welded structures such as aerospace vehicles, high-speed ships and speedboats, high-speed railways and automobiles, and with the advancement of science and technology, a kind of upper and lower synchronous heavy-load friction stir welding equipment has emerged, which can simultaneously perform friction stir welding on the upper and lower sides of the profile welding point, with high welding efficiency and good quality.
[0003] However, when existing upper and lower synchronized heavy-loaded friction stir welding equipment is used to weld profiles, the welding point of the profile is generally aligned with the stirring needle manually, which is troublesome to operate and increases the labor intensity of the staff. In addition, the corresponding accuracy is poor, resulting in a large offset between the welding point and the stirring needle, which is not conducive to the quality of welding. Summary of the invention
[0004] The purpose of the present invention is to solve the shortcomings of the prior art and to propose an upper and lower synchronous heavy-load friction stir welding device.
[0005] In order to achieve the above-mentioned purpose, the present invention adopts the following technical scheme: a kind of upper and lower synchronous heavy-duty stir friction welding equipment, comprising a base, the front side of the base is fixedly connected with a translation driving device, the inside of the base is movably connected with a stir friction welding device, the right side of the base is fixedly connected with a fixed frame, the front and rear sides of the inside of the fixed frame are fixedly connected with a positioning device, the left and right sides of the inside of the fixed frame are fixedly connected with a clamping device, the upper and lower sides of the inner side of the base are fixedly connected with a fixing device, and an aluminum alloy plate is placed between the left and right fixing devices. The alignment device includes a fixed cylinder fixedly connected to the front and rear sides of the fixed frame, the end of the fixed cylinder away from the fixed frame is fixedly connected to the driving motor, the output end of the driving motor is fixedly connected to the driving stud, the outer side of the driving stud is threadedly connected to the telescopic column, the end of the telescopic column away from the driving motor is fixedly connected to a slide rail, the inside of the slide rail is movably connected to a screw, the outer side of the screw is threadedly connected to a baffle, the inner side of the baffle is movably connected to the second rotating cylinder, the side of the slide rail away from the telescopic column is fixedly connected to an alignment head, and the inner side of the alignment head is movably connected to the first rotating cylinder.
[0006] The base comprises a base body, a slide groove is arranged inside the base body, and a bottom plate is fixedly connected to the lower part of the base body.
[0007] The translation driving device includes a fixed shell fixedly connected to the front side of the seat body, a translation motor is fixedly connected to the front side of the fixed shell, a driving shaft is fixedly connected to the output end of the translation motor, a first gear is fixedly connected to the outer side of the driving shaft, a rotating shaft is movably connected to the middle of the fixed shell, a second gear is fixedly connected to the outer side of the rotating shaft, a third gear is fixedly connected between the second gears, a translation stud is movably connected to the left side of the fixed shell, a fourth gear is fixedly connected to the outer side of the translation stud, the first gear is meshed with the second gear, and the third gear is meshed with the fourth gear.
[0008] The fixed frame includes a frame body fixedly connected to the right side of the seat body, the front and rear sides of the frame body are provided with fixing holes, the left and right sides of the inner side of the frame body are fixedly connected with connecting blocks, the frame body and the connecting blocks are fixedly connected with limiting columns, and the left and right sides of the frame body are fixedly connected with connecting plates.
[0009] The clamping device includes a clamping hydraulic telescopic rod fixedly connected to the left and right sides of the frame, one end of the clamping hydraulic telescopic rod close to the center of the frame is fixedly connected to a compression shell, a compression plate is movably connected inside the compression shell, a spring is fixedly connected between the compression shell and the compression plate, a side of the compression plate close to the clamping hydraulic telescopic rod is fixedly connected to a lower connecting column, and an end of the lower connecting column close to the clamping hydraulic telescopic rod is fixedly connected to an upper connecting column.
[0010] The fixing device includes an adjustable hydraulic telescopic rod fixedly connected to the inner side of a connecting plate, an end of the adjustable hydraulic telescopic rod away from the connecting plate is fixedly connected to a fixed block, a fixing column is fixedly connected between the fixing blocks, a fixed hydraulic telescopic rod is fixedly connected inside the fixing block, an end of the fixed hydraulic telescopic rod close to the frame is fixedly connected to a fixing plate, and a fixed rotating drum is movably connected to the inner side of the fixing plate.
[0011] The friction stir welding device includes a translation frame movably connected to the inside of a base body, a translation screw hole is provided inside the translation frame, extrusion hydraulic telescopic rods are fixedly connected to the top and bottom of the translation frame, an end of the extrusion hydraulic telescopic rod close to the frame is fixedly connected to a support block, a welding body is fixedly connected to the right side of the support block, a rotating motor is fixedly connected to the side of the welding body away from the frame, a stirring sleeve is fixedly connected to the output end of the rotating motor, and a stirring needle is fixedly connected to the inside of the stirring sleeve.
[0012] The present invention has the following beneficial effects:
[0013] Compared with the prior art, the present invention is advantageous in that the welding point of the aluminum alloy plate is aligned with the stirring head by providing a positioning device, a pressing device and a fixing device. When in use, the upper and lower sides of the aluminum alloy plate can be fixed by the baffle frame, and the front and rear sides can be fixed by the slide rail, so that the aluminum alloy plate is located at the upper and lower and front and rear center positions of the fixing frame. Then, the aluminum alloy plate is fixed again by the fixing device, so that the aluminum alloy plate will not tilt downward due to gravity, thereby ensuring that the aluminum alloy plate can be stably located at the upper and lower center positions of the fixing frame, thereby ensuring that the tops and bottoms of the two aluminum alloy plates can be in the same plane, so as to ensure that the welding points of the two aluminum alloy plates are fitted together with higher precision. Then, the pressing device is controlled to apply pressure to the aluminum alloy plate, and the two positioning heads are controlled to move forward and backward at the same time. The alignment head is moved sideways so that the left and right aluminum alloy plates can move toward the middle at the same time, and contact the inclined surface of the alignment head by continuous movement. As the alignment head continuously moves toward the front and rear sides of the fixed frame, the left and right aluminum alloy plates are continuously approached. When the alignment head is separated from the aluminum alloy plate, the edges of the left and right aluminum alloy plates are fitted together, and the line connecting the centers of the ends of the alignment head and the line connecting the centers of the ends of the stirring needle are in the same plane, so that the fitting part of the two aluminum alloy plates and the line connecting the centers of the stirring needle are in the same plane, so that the stirring needle can be located at the center of the welding part of the two aluminum alloy plates when welding the two aluminum alloy plates, which solves the problem of poor accuracy when manually aligning the stirring needle with the welding part, ensures that there will be no large offset between the stirring needle and the welding part, thereby ensuring higher quality of welding. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] Figure 1 It is a schematic diagram of the overall structure of the present invention;
[0015] Figure 2 It is a schematic diagram of the cross-sectional structure of the base as a whole and the translation drive device of the present invention;
[0016] Figure 3 For the present invention Figure 2 The enlarged structural diagram at A in the middle;
[0017] Figure 4 It is a schematic diagram of the cross-sectional structure of the alignment device of the present invention;
[0018] Figure 5 It is a schematic diagram of the overall structure of the fixing frame of the present invention;
[0019] Figure 6 It is a schematic diagram of the cross-sectional structure of the pressing device of the present invention;
[0020] Figure 7 It is a schematic diagram of the overall structure of the fixing device of the present invention;
[0021] Figure 8 It is a schematic diagram of the overall structure of the friction stir welding device of the present invention.
[0022] Legend:
[0023] 1. Base; 101. Base body; 102. Slide; 103. Bottom plate; 2. Translation drive device; 201. Fixed shell; 202. Rotating shaft; 203. Translation motor; 204. First gear; 205. Driving shaft; 206. Second gear; 207. Third gear; 208. Translation stud; 209. Fourth gear; 3. Alignment device; 301. Fixed cylinder; 302. Driving stud; 303. Driving motor; 304. Telescopic column; 305. Screw; 306. Stop frame; 307. First rotating cylinder; 308. Second rotating cylinder; 309. Alignment head; 310. Slide rail; 4. Fixed frame; 401. Frame; 402. Fixed hole; 403. Connecting block ;404, limit column;405, connecting plate;5, clamping device;501, clamping hydraulic telescopic rod;502, pressure shell;503, spring;504, lower connecting column;505, upper connecting column;506, pressing plate;6, fixing device;601, adjusting hydraulic telescopic rod;602, fixing column;603, fixing block;604, fixing plate;605, fixing hydraulic telescopic rod;606, fixing rotating drum;7, aluminum alloy plate;8, stir friction welding device;801, translation frame;802, translation screw hole;803, squeezing hydraulic telescopic rod;804, rotating motor;805, welding body;806, supporting block;807, stirring needle;808, stirring sleeve. DETAILED DESCRIPTION
[0024] Reference Figure 1-8The present invention provides a top-bottom synchronous heavy-duty friction stir welding device: comprising a base 1, a translation driving device 2 is fixedly connected to the front side of the base 1, a friction stir welding device 8 is movably connected inside the base 1, a fixing frame 4 is fixedly connected to the right side of the base 1, a positioning device 3 is fixedly connected to the front and rear sides of the fixing frame 4, a clamping device 5 is fixedly connected to the left and right sides of the fixing frame 4, a fixing device 6 is fixedly connected to the upper and lower sides of the inner side of the base 1, an aluminum alloy plate 7 is placed between the left and right fixing devices 6, the positioning device 3 comprises a fixing cylinder 301 fixedly connected to the front and rear sides of the fixing frame 4, the end of the fixing cylinder 301 away from the fixing frame 4 is fixedly connected to a driving motor 303, and the output end of the driving motor 303 The drive stud 302 is fixedly connected, and the outer side of the drive stud 302 is threadedly connected to the telescopic column 304. The outer side of the telescopic column 304 is provided with a notch to prevent the telescopic column 304 from rotating, so that the telescopic column 304 can only be telescoped inside the fixed cylinder 301. The end of the telescopic column 304 away from the drive motor 303 is fixedly connected to the slide rail 310, and the slide rail 310 is used for the movement of the retaining frame 306. The interior of the slide rail 310 is movably connected with a screw rod 305, and the outer side of the screw rod 305 is provided with two opposite threads. Through the rotation of the screw rod 305 and through forward and reverse rotation, the two retaining frames 306 can move to the middle and the upper and lower sides at the same time. The outer side of the screw 305 is threadedly connected to the retaining frame 306, and the inner side of the retaining frame 306 is movably connected to the second rotating cylinder 308, the second rotating cylinder 308 can rotate on the inner side of the retaining frame 306, and the side of the slide rail 310 away from the telescopic column 304 is fixedly connected with an alignment head 309, and the left and right sides of the end of the alignment head 309 are both obliquely set, and the inner side of the alignment head 309 is movably connected with the first rotating cylinder 307, and the first rotating cylinder 307 can rotate on the inner side of the alignment head 309, and the distance between the retaining frames 306 is adjusted according to the thickness of the aluminum alloy plate 7, and the screw 305 is screwed to make it rotate inside the slide rail 310, and the two retaining frames 306 can move to the middle and the upper and lower sides at the same time by the forward and reverse rotation of the screw 305, so that the distance between the retaining frames 306 can be adjusted, so that the upper and lower parts of the aluminum alloy plate 7 can be adjusted. The two sides can be fixed by the retaining frame 306 to ensure that the aluminum alloy plate 7 will not be easily tilted up and down, and the aluminum alloy plate 7 is located at the upper and lower center of the fixed frame 4, and the driving stud 302 is rotated by starting the driving motor 303, and the telescopic column 304 can move back and forth inside the fixed cylinder 301 by driving the stud 302 to rotate forward and reverse, thereby driving the alignment head 309 to move back and forth, and the alignment head 309 is controlled to move to the front and rear sides and the middle of the fixed frame 4 according to the length of the aluminum alloy plate 7, so that the distance between the alignment heads 309 can be adjusted, so that the front and rear sides of the two aluminum alloy plates 7 can contact the slide rail 310, thereby fixing the front and rear sides of the aluminum alloy plate 7.And make the aluminum alloy plate 7 be located at the front and rear center position of the fixed frame 4, then control and adjust the hydraulic telescopic rod 601 so that the fixed plate 604 can move to the center position of the fixed frame 4, so that the fixed plate 604 can be located at the upper and lower sides of the aluminum alloy plate 7, and the fixed hydraulic telescopic rod 605 is controlled to make the fixed plate 604 close to the aluminum alloy plate 7, and the fixed rotating cylinder 606 can be pressed on the upper and lower sides of the aluminum alloy plate 7 by continuously approaching, and the aluminum alloy plate 7 is further fixed, and then the hydraulic telescopic rod 501 is controlled to press the pressure shell 502 to the aluminum alloy plate 7, so that the pressure plate 506 can press the aluminum alloy plate 7, and the pressure plate 506 can be retracted into the pressure shell 502 by continuously approaching, and then the spring 503 is squeezed, so that the pressure plate 506 can press the aluminum alloy plate 7 more firmly, and at the same time, the alignment head 309 moves to the front and rear sides of the fixed frame 4, and the alignment head 309 can be pressed to the front and rear sides of the fixed frame 4 by continuously moving and under the pressure of the pressure plate 506 The aluminum alloy plate 7 can move toward the middle and contact the inclined surface of the alignment head 309. As the alignment head 309 continuously moves toward the front and rear sides of the fixed frame 4, the left and right aluminum alloy plates 7 are continuously approached. Under the action of the first rotating cylinder 307 and the second rotating cylinder 308, the alignment head 309 can more easily move relative to the aluminum alloy plate 7, ensuring that the alignment head 309 will not drive the aluminum alloy plate 7 to move forward and backward. When the alignment head 309 is separated from the aluminum alloy plate 7, the edges of the left and right aluminum alloy plates 7 are attached together, and the connecting line of the center of the end of the alignment head 309 and the connecting line of the center of the end of the stirring needle 807 are in the same plane, so that the attachment point of the two aluminum alloy plates 7 and the connecting line of the center of the stirring needle 807 are in the same plane, so that the stirring needle 807 can be located at the center of the welding point of the two aluminum alloy plates 7 when welding the two aluminum alloy plates 7, ensuring that there will be no large deviation between the stirring needle 807 and the welding point, thereby ensuring higher welding quality.
[0025] Preferably, the base 1 includes a base body 101 , a slide groove 102 is provided inside the base body 101 , a bottom plate 103 is fixedly connected to the lower part of the base body 101 , and the slide groove 102 is used for the movement of the translation frame 801 .
[0026] Preferably, the translation drive device 2 includes a fixed shell 201 fixedly connected to the front side of the seat body 101, a translation motor 203 is fixedly connected to the front side of the fixed shell 201, a driving shaft 205 is fixedly connected to the output end of the translation motor 203, a first gear 204 is fixedly connected to the outer side of the driving shaft 205, a rotating shaft 202 is movably connected in the middle inside the fixed shell 201, a second gear 206 is fixedly connected to the outer side of the rotating shaft 202, a third gear 207 is fixedly connected between the second gears 206, a translation stud 208 is movably connected to the left side inside the fixed shell 201, the translation screw hole 802 is adapted to the outward thread of the translation stud 208, a fourth gear 209 is fixedly connected to the outer side of the translation stud 208, the first gear 204 is meshed with the second gear 206, the third gear 207 is meshed with the fourth gear 209, and through Starting the translation motor 203 allows the drive shaft 205 to drive the first gear 204 to rotate, and then drives the second gear 206 to rotate the third gear 207. The rotation of the third gear 207 drives the fourth gear 209 to rotate the translation stud 208. The rotation of the translation stud 208 allows the translation frame 801 to move inside the seat body 101. The forward and reverse rotation of the translation stud 208 allows the translation frame 801 to move back and forth, so that the stir friction welding device 8 can move back and forth, which is convenient for the stir friction welding device 8 to weld along the welding point. Under the action of the first gear 204, the second gear 206, the third gear 207 and the fourth gear 209, the rotation speed of the translation stud 208 is lower and the torque is greater, which can stably drive the translation frame 801 to move.
[0027] Preferably, the fixing frame 4 includes a frame body 401 fixedly connected to the right side of the seat body 101, and the front and rear sides of the frame body 401 are provided with fixing holes 402, and the fixing holes 402 are used to fix the positioning device 3. The left and right sides of the inner side of the frame body 401 are fixedly connected with connecting blocks 403, and the frame body 401 and the connecting blocks 403 are fixedly connected with limiting columns 404. The limiting columns 404 are used to ensure that the movement of the compression shell 502 is more stable. The left and right sides of the frame body 401 are fixedly connected with connecting plates 405, and the connecting plates 405 are used to fix the fixing device 6.
[0028] Preferably, the clamping device 5 includes a clamping hydraulic telescopic rod 501 fixedly connected to the left and right sides of the frame 401, one end of the clamping hydraulic telescopic rod 501 close to the center of the frame 401 is fixedly connected to a compression shell 502, sliding holes are arranged around the inside of the compression shell 502 for it to move on the outside of the limit column 404, the inside of the compression shell 502 is movably connected to a compression plate 506, the compression plate 506 can move inside the compression shell 502, a spring 503 is fixedly connected between the compression shell 502 and the compression plate 506, and the side of the compression plate 506 close to the clamping hydraulic telescopic rod 501 is fixedly connected to a lower connecting column 504, and the lower connecting column 504 is close to the clamping One end of the hydraulic telescopic rod 501 is fixedly connected to an upper connecting column 505, and the diameter of the lower connecting column 504 is larger than that of the upper connecting column 505, which is used to prevent the pressure plate 506 from being retracted too much into the pressure shell 502 and damaging the spring 503. By controlling and tightening the hydraulic telescopic rod 501, it can drive the pressure shell 502 to move toward the aluminum alloy plate 7. Through continuous movement, the pressure plate 506 can contact the aluminum alloy plate 7, and the pressure plate 506 can be squeezed and retracted into the pressure shell 502, thereby squeezing the spring 503. The squeezing of the spring 503 produces a reverse force, thereby making the pressure of the pressure plate 506 on the aluminum alloy plate 7 greater.
[0029] Preferably, the fixing device 6 includes an adjustable hydraulic telescopic rod 601 fixedly connected to the inner side of the connecting plate 405, the end of the adjustable hydraulic telescopic rod 601 away from the connecting plate 405 is fixedly connected to a fixed block 603, and a fixed column 602 is fixedly connected between the fixed blocks 603. The fixed column 602 is used to connect the fixed blocks 603, so that the fixed hydraulic telescopic rod 605 fixed in the fixed block 603 is more stable, the fixed hydraulic telescopic rod 605 is fixedly connected inside the fixed block 603, and the end of the fixed hydraulic telescopic rod 605 close to the frame 401 is fixedly connected to a fixed plate 604, and the inner side of the fixed plate 604 is movably connected to The fixed rotating cylinder 606 is controlled and adjusted by the hydraulic telescopic rod 601 so that the fixed plate 604 can be moved toward the middle of the fixed frame 4, so that the fixed plate 604 can be located on the upper and lower sides of the aluminum alloy plate 7, and the fixed hydraulic telescopic rod 605 is controlled and fixed so that the fixed plate 604 can approach the aluminum alloy plate 7, and the fixed rotating cylinder 606 can be pressed on the upper and lower sides of the aluminum alloy plate 7 by continuously approaching, so as to further fix the aluminum alloy plate 7, and the fixed rotating cylinder 606 can be rotated on the inner side of the fixed plate 604, so that the aluminum alloy plate 7 can move smoothly under the pressure of the clamping device 5.
[0030] Preferably, the friction stir welding device 8 includes a translation frame 801 movably connected to the inside of the base body 101, and a translation screw hole 802 is provided inside the translation frame 801. The top and bottom of the translation frame 801 are fixedly connected with extrusion hydraulic telescopic rods 803. By controlling the extrusion hydraulic telescopic rod 803, the support block 806 can be mobilized to approach the fixed frame 4, and the stirring needle 807 can be close to the aluminum alloy plate 7. By continuously approaching, the stirring needle 807 can contact the aluminum alloy plate 7. The end of the extrusion hydraulic telescopic rod 803 close to the frame 401 is fixedly connected to the support block 806, and the right side of the support block 806 is fixedly connected to the welding body 805. The side of the welding body 805 away from the frame 401 is fixedly connected There is a rotating motor 804, and the output end of the rotating motor 804 is fixedly connected to a stirring sleeve 808, and the interior of the stirring sleeve 808 is fixedly connected to a stirring needle 807. By starting the rotating motor 804, the stirring sleeve 808 can drive the stirring needle 807 to rotate, and under the drive of the extrusion hydraulic telescopic rod 803, the stirring needle 807 can drill into the aluminum alloy plate 7, and under the action of friction, the friction between the aluminum alloy plate 7 and the stirring needle 807 is quickly melted, and under the drive of the translation frame 801, the stirring needle 807 is moved along the welding point of the two aluminum alloy plates 7, so that the welding point of the two aluminum alloy plates 7 is continuously melted, and after the molten metal liquid solidifies, the two aluminum alloy plates 7 are fixed together.
[0031] Working principle: When in use, the distance between the baffles 306 is adjusted according to the thickness of the aluminum alloy plate 7, and the screw rod 305 is turned to make it rotate inside the slide rail 310, and the two baffles 306 can move to the middle and the upper and lower sides at the same time by the forward and reverse rotation of the screw rod 305, so that the distance between the baffles 306 can be adjusted, so that the upper and lower sides of the aluminum alloy plate 7 can be fixed by the baffles 306, ensuring that the aluminum alloy plate 7 will not be easily tilted up and down, and the aluminum alloy plate 7 is located at the upper and lower center of the fixed frame 4, and the driving motor 303 is started to rotate the driving stud 302, and the telescopic column 30 is rotated by the forward and reverse rotation of the driving stud 302. 4 can move back and forth inside the fixed cylinder 301, thereby driving the alignment head 309 to move back and forth. According to the length of the aluminum alloy plate 7, the alignment head 309 is controlled to move to the front and rear sides and the middle of the fixed frame 4 at the same time, so that the distance between the alignment heads 309 can be adjusted, so that the front and rear sides of the two aluminum alloy plates 7 can contact the slide rail 310, and then the front and rear sides of the aluminum alloy plate 7 are fixed, and the aluminum alloy plate 7 is located at the front and rear center of the fixed frame 4. Then, the hydraulic telescopic rod 601 is controlled and adjusted so that the fixed plate 604 can move to the center position of the fixed frame 4, so that the fixed plate 604 can be located at the upper and lower sides of the aluminum alloy plate 7. By controlling the fixing liquid The telescopic rod 605 is pressed so that the fixed plate 604 can approach the aluminum alloy plate 7, and the fixed rotating cylinder 606 can be pressed on the upper and lower sides of the aluminum alloy plate 7 by continuously approaching, so as to further fix the aluminum alloy plate 7, and then the hydraulic telescopic rod 501 is controlled to be pressed so that the pressure shell 502 approaches the aluminum alloy plate 7, so that the pressure plate 506 can press the aluminum alloy plate 7, and the pressure plate 506 can be retracted into the pressure shell 502 by continuously approaching, thereby squeezing the spring 503, so that the pressure plate 506 can press the aluminum alloy plate 7 more firmly, and at the same time, the alignment head 309 moves to the front and rear sides of the fixed frame 4, and the aluminum alloy plate 7 can be pressed by continuously moving and under the pressure of the pressure plate 506. The first rotating drum 307 and the second rotating drum 308 enable the alignment head 309 to move relatively to the aluminum alloy plate 7 more easily, ensuring that the alignment head 309 will not drive the aluminum alloy plate 7 to move forward and backward. When the alignment head 309 is separated from the aluminum alloy plate 7, the edges of the left and right aluminum alloy plates 7 are fitted together, and the line connecting the centers of the ends of the alignment head 309 and the line connecting the centers of the ends of the stirring needle 807 are in the same plane, so that the fitting point of the two aluminum alloy plates 7 and the line connecting the centers of the stirring needle 807 are in the same plane.Thus, the stirring needle 807 can be located at the center of the welding point of the two aluminum alloy plates 7 when welding the two aluminum alloy plates 7, ensuring that there will be no large deviation between the stirring needle 807 and the welding point, thereby ensuring higher welding quality.
[0032] 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, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments or to 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. A top and bottom synchronous heavy-load friction stir welding device, comprising a base (1), characterized in that: The front side of the base (1) is fixedly connected to a translation drive device (2), the interior of the base (1) is movably connected to a stir friction welding device (8), the right side of the base (1) is fixedly connected to a fixed frame (4), the front and rear sides of the interior of the fixed frame (4) are fixedly connected to a positioning device (3), the left and right sides of the interior of the fixed frame (4) are fixedly connected to a clamping device (5), the upper and lower sides of the inner side of the base (1) are fixedly connected to a fixing device (6), an aluminum alloy plate (7) is placed between the left and right fixing devices (6), the positioning device (3) comprises a fixing cylinder (301) fixedly connected to the front and rear sides of the interior of the fixed frame (4), and the fixing cylinder (301) is fixedly connected to the fixing frame (4) at one end thereof. A driving motor (303) is fixedly connected to the output end of the driving motor (303), a driving stud (302) is fixedly connected to the output end of the driving motor (303), a telescopic column (304) is threadedly connected to the outer side of the driving stud (302), a sliding rail (310) is fixedly connected to one end of the telescopic column (304) away from the driving motor (303), a screw rod (305) is movably connected to the inside of the sliding rail (310), a retaining frame (306) is threadedly connected to the outer side of the screw rod (305), a second rotating cylinder (308) is movably connected to the inner side of the retaining frame (306), a positioning head (309) is fixedly connected to the side of the sliding rail (310) away from the telescopic column (304), and a first rotating cylinder (307) is movably connected to the inner side of the positioning head (309).
2. The upper and lower synchronous heavy-load friction stir welding equipment according to claim 1 is characterized in that: The base (1) comprises a base body (101), a slide groove (102) is provided inside the base body (101), and a bottom plate (103) is fixedly connected to the lower part of the base body (101).
3. The upper and lower synchronous heavy-load friction stir welding equipment according to claim 1 is characterized in that: The translation drive device (2) comprises a fixed shell (201) fixedly connected to the front side of the seat body (101); a translation motor (203) is fixedly connected to the front side of the fixed shell (201); a driving shaft (205) is fixedly connected to the output end of the translation motor (203); a first gear (204) is fixedly connected to the outer side of the driving shaft (205); a rotating shaft (202) is movably connected to the middle of the fixed shell (201); a second gear (206) is fixedly connected to the outer side of the rotating shaft (202); a third gear (207) is fixedly connected between the second gears (206); a translation stud (208) is movably connected to the left side of the fixed shell (201); a fourth gear (209) is fixedly connected to the outer side of the translation stud (208); the first gear (204) is meshed with the second gear (206); and the third gear (207) is meshed with the fourth gear (209).
4. The upper and lower synchronous heavy-load friction stir welding equipment according to claim 1, characterized in that: The fixing frame (4) comprises a frame body (401) fixedly connected to the right side of the seat body (101); fixing holes (402) are provided on both the front and rear sides of the frame body (401); connecting blocks (403) are fixedly connected to both the left and right sides of the inner side of the frame body (401); limiting columns (404) are fixedly connected between the frame body (401) and the connecting blocks (403); and connecting plates (405) are fixedly connected to both the left and right sides of the frame body (401).
5. The upper and lower synchronous heavy-load friction stir welding equipment according to claim 1, characterized in that: The clamping device (5) comprises a clamping hydraulic telescopic rod (501) fixedly connected to the left and right sides of the frame (401); one end of the clamping hydraulic telescopic rod (501) close to the center of the frame (401) is fixedly connected to a compression shell (502); a compression plate (506) is movably connected inside the compression shell (502); a spring (503) is fixedly connected between the compression shell (502) and the compression plate (506); a lower connecting column (504) is fixedly connected to one side of the compression plate (506) close to the clamping hydraulic telescopic rod (501); and an upper connecting column (505) is fixedly connected to one end of the lower connecting column (504) close to the clamping hydraulic telescopic rod (501).
6. The upper and lower synchronous heavy-load friction stir welding equipment according to claim 1, characterized in that: The fixing device (6) comprises an adjustable hydraulic telescopic rod (601) fixedly connected to the inner side of the connecting plate (405); one end of the adjustable hydraulic telescopic rod (601) away from the connecting plate (405) is fixedly connected to a fixing block (603); fixing columns (602) are fixedly connected between the fixing blocks (603); the interior of the fixing blocks (603) is fixedly connected to a fixed hydraulic telescopic rod (605); one end of the fixed hydraulic telescopic rod (605) close to the frame (401) is fixedly connected to a fixing plate (604); and the inner side of the fixing plate (604) is movably connected to a fixed rotating drum (606).
7. The upper and lower synchronous heavy-load friction stir welding equipment according to claim 1, characterized in that: The friction stir welding device (8) comprises a translation frame (801) movably connected to the inside of a base body (101), a translation screw hole (802) is provided inside the translation frame (801), an extrusion hydraulic telescopic rod (803) is fixedly connected to the top and bottom of the translation frame (801), an end of the extrusion hydraulic telescopic rod (803) close to the frame (401) is fixedly connected to a support block (806), a welding body (805) is fixedly connected to the right side of the support block (806), a rotating motor (804) is fixedly connected to the side of the welding body (805) away from the frame (401), an output end of the rotating motor (804) is fixedly connected to a stirring sleeve (808), and a stirring needle (807) is fixedly connected to the inside of the stirring sleeve (808).