Laser welding clamping mechanism for aluminum-steel dissimilar metal splicing

Abstract

The application discloses a laser welding clamping mechanism for aluminum-steel dissimilar metal splicing and relates to the technical field of aluminum-steel dissimilar metal welding, which comprises a frame body, the frame body is connected with a clamping assembly, the clamping assembly comprises a translation piece installed on the frame body, the translation piece comprises two groups of first motors, coaxial fixing connection of output ends of the first motors with single screw rods, and the inside of the frame body is fixedly connected with two groups of guide rails respectively; two groups of clamping pieces are installed on the two groups of single screw rods respectively, the laser welding clamping mechanism for aluminum-steel dissimilar metal splicing is matched with the two groups of first motors, the single screw rods and the guide rails, the horizontal positions of the two groups of clamping pieces are adjusted respectively, the horizontal positions of the anti-escape block, the supporting plate, the third motor, the first bidirectional screw rod, the first bellows, the two groups of slide rods, the first slide rail and the four groups of clamping jaws are adjusted by the first air cylinder, the clamping jaws are extended along the guide grooves in the guide blocks, and the clamping length is adjusted to be matched with the plate.

Description

Technical Field

[0001] This invention relates to the field of aluminum-steel dissimilar metal welding technology, specifically to a laser welding clamping mechanism for splicing aluminum-steel dissimilar metals. Background Technology

[0002] In the process of splicing dissimilar metals such as aluminum and steel, laser welding is required. During the welding process, a clamping mechanism is needed to hold the metal. Referring to a high-strength aluminum alloy-steel plate laser welding method published in CN107186343A, it can effectively reduce the sensitivity of aluminum alloy and steel dissimilar metal welds to hot cracking, obtain good internal and external weld quality, and eliminate cracks. At the same time, it can effectively reduce costs. As described in the aforementioned patent, most existing laser welding clamping mechanisms used for splicing dissimilar metals such as aluminum and steel can only achieve displacement adjustment in a single direction. It is difficult to meet the precise positioning of the clamping ends in the X, Y, and Z axes without interference. They have poor adaptability and stability to different plates, and it is difficult to adjust the plate angle as needed after precise clamping. This is not conducive to the precise docking of the plates to be welded. In addition, after the plates are docked, it is difficult to adjust the clamping ends on both sides of the plates synchronously, which can easily affect the subsequent welding quality due to plate misalignment. Summary of the Invention

[0003] To address the shortcomings of existing technologies, this invention provides a laser welding clamping mechanism for splicing dissimilar metals such as aluminum and steel, which solves problems such as poor adjustability of the clamping end and low docking accuracy affecting welding quality.

[0004] To achieve the above objectives, the present invention provides the following technical solution: a laser welding clamping mechanism for splicing dissimilar metals such as aluminum and steel, comprising a frame, wherein the frame is connected to a clamping assembly for welding and clamping dissimilar metal plates of aluminum and steel, the clamping assembly comprising: A translation component is installed on the frame for adjusting the horizontal position of the clamping end. The translation component includes two sets of first motors that are fixedly connected to the left and right sides of the frame, respectively. The output end of the first motor is coaxially fixedly connected to a one-way screw that is rotatably connected to the inside of the frame. Two sets of guide rails are fixedly connected to the inside of the frame near the one-way screw. Two sets of clamping components are respectively installed on two sets of one-way screws and connected to guide rails for clamping the sheet metal. Each clamping component includes a movable frame that is threadedly connected to the one-way screws and slidably connected to the guide rails. A rotating frame is rotatably connected to the upper side of the movable frame near the middle of the frame body. An angle adjusting component for adjusting the angle of the rotating frame is installed on the upper side of the frame body away from the middle of the frame body. The movable frame and the rotating frame are connected together to an adjusting component for adjusting the position of the clamping end along the X and Z axes. A traction component for adjusting the position of the clamping end along the Y axis is installed on the rotating frame near the middle of the frame body. The movable frame is connected to a synchronizing component that is connected to the frame body and is used to synchronize the angle adjustment ends of the two sets of clamping components. Four sets of third corrugated pipes are fixedly connected to both sides of the two sets of movable frames and sleeved on the outer end of the one-way screw. The other end of the third corrugated pipe is fixedly connected to the frame.

[0005] Preferably, the adjusting component includes a second motor fixedly connected to the upper side of the moving frame, a brake for locking the output end of the second motor is fixedly connected to the upper inner side of the moving frame, a drive gear is fixedly connected to the output end of the second motor, and a driven gear ring that meshes with the drive gear is fixedly connected to the inner side of the rotating frame near the moving frame.

[0006] Preferably, the adjusting component includes a first cylinder fixedly connected to the upper side of the movable frame away from the middle of the frame. An anti-detachment block is fixedly connected to the telescopic side of the first cylinder near the end of the rotating frame. A support plate slidably connected to the anti-detachment block is rotatably connected along the X-axis inside the rotating frame. Two sets of slide rods are vertically fixedly connected to the front and rear sides of the support plate, respectively. Two sets of first slide rails are slidably connected between the two sets of slide rods. Two sets of grippers connected to the traction component are slidably connected inside the first slide rails. A first bidirectional screw rod is vertically rotatably connected to the middle of the movable frame and threadedly connected to the two sets of first slide rails. A third motor with its output end coaxially fixedly connected to the upper side of the middle of the movable frame is fixedly connected. A first bellows fixedly connected to the movable frame is fixedly connected to the outer side of the first slide rail near the first bidirectional screw rod.

[0007] Preferably, the first slide rail is provided with a first slide groove along the Y-axis direction to slide and connect with the gripper. The gripper is provided with a first protrusion that is slidably connected in the first slide groove and used to prevent detachment on the side near the first slide rail. A set of fourth corrugated pipes is fixedly connected to the adjacent sides of the two sets of first slide rails near the outer end of the first bidirectional screw. The gripper is perpendicular to the first slide rail. Four sets of support rods that are slidably connected to the edge of the moving frame are fixedly connected to the inner side of the rotating frame along the X-axis direction.

[0008] Preferably, the traction component includes two sets of second bidirectional screws rotatably connected to the upper and lower sides of the rotating frame along the Y-axis direction. A bevel gear assembly is connected to the rear side of the second bidirectional screws. A fourth motor for driving the two sets of bevel gear assemblies is fixedly connected to the top of the rotating frame. A set of second slide rails is threaded to both sides of the two sets of second bidirectional screws. Two sets of guide blocks that are slidably connected to the grippers are vertically slidably connected inside the second slide rails. The clamping component also includes a second bellows fixedly connected between the rotating frame and the second slide rails and located outside the second bidirectional screws.

[0009] Preferably, the output end of the fourth motor is coaxially and fixedly connected to the driving bevel gears in the two sets of bevel gear assemblies, the driven bevel gears in the bevel gear assemblies are coaxially and fixedly connected to the second bidirectional screw, the inner sides of the two sets of second slide rails are provided with second slide grooves that are slidably connected to the guide block along the Z-axis direction, the side of the guide block is provided with a second protrusion that is slidably connected to the second slide groove, the guide block is provided with a guide groove that is slidably connected to the gripper along the X-axis direction, and the adjacent sections of the two sets of second slide rails are jointly and fixedly connected to the outer side of the second bidirectional screw with a fifth bellows.

[0010] Preferably, the synchronizing element includes a fifth motor fixedly connected to the right side of the frame, a cross shaft coaxially fixedly connected to the left output end of the fifth motor and rotatably connected to the frame, sleeves rotatably connected to the cross shafts at the bottom middle of the two sets of moving frames along the X-axis, a transmission gear meshing with the lower end of the driven gear ring rotatably connected to the inner side of the moving frame, a pulley assembly connected to the side of the sleeve away from the frame, a mating part connected between the pulley assembly and the transmission gear, and a second cylinder fixedly connected to the upper side of the moving frame near the pulley assembly.

[0011] Preferably, the sleeve is coaxially and fixedly connected to the drive pulley in the pulley assembly. The sleeve is provided with a cross groove that is slidably connected to the cross shaft. The docking part includes four sets of guide rods fixedly connected to the movable frame along the X-axis. The four sets of guide rods are slidably connected to a movable block that is fixedly connected to the telescopic end of the second cylinder. A transmission component is installed in the movable block. A second synchronous ring is coaxially and fixedly connected to the transmission gear near the transmission component.

[0012] Preferably, the transmission component includes a rotating drum rotatably connected within the movable block, a synchronous gear rotatably connected to the moving frame and engaged with the inner side of the rotating drum, the synchronous gear being coaxially and fixedly connected to the driven pulley in the pulley assembly, a first synchronous ring being coaxially and fixedly connected to the rotating drum on the side away from the pulley assembly corresponding to the second synchronous ring, the surface of the first synchronous ring being provided with a plurality of first mating teeth, the surface of the second synchronous ring being provided with a plurality of second mating teeth that match the first mating teeth, and the rotating drum being provided with a groove that engages with a plurality of teeth on the surface of the synchronous gear.

[0013] Preferably, the clamping components are symmetrically arranged on the guide rails on both sides of the frame, the rotating frame has a slot near the gripper, the moving frame has a movable slot near the outer side of the movable block, and the first motor, second motor, third motor, fourth motor, and fifth motor are all servo motors.

[0014] Beneficial effects: This invention provides a laser welding clamping mechanism for splicing dissimilar metals such as aluminum and steel. Compared with the prior art, it has the following advantages: (1) The laser welding clamping mechanism for splicing dissimilar metals such as aluminum and steel is provided with translation and clamping components in the mechanism. The two sets of first motors, one-way screws and guide rails cooperate with each other to adjust the horizontal position of the two sets of clamping components, which facilitates the feeding of the plate and the subsequent plate docking operation. The first cylinder adjusts the horizontal position of the anti-detachment block, support plate, third motor, first bidirectional screw, first corrugated pipe, two sets of slide rods, first slide rail and four sets of jaws. The jaws extend along the guide groove in the guide block and adjust the clamping length to match the plate. This prevents the plate clamping end from being too long and affecting the welding, and also avoids the plate clamping end from being too short and affecting the stability of the clamping end. The fourth motor, through two sets of bevel gear assemblies and a second bidirectional screw, adjusts the spacing of the two sets of second slide rails, four sets of guide blocks, and grippers along the Y-axis, so that the clamping end matches the Y-axis dimension of the plate. The third motor, in conjunction with the first bidirectional screw and slide rod, adjusts the vertical spacing of the two sets of first slide rails and four sets of grippers to clamp the plate of the corresponding size. The second motor, through the driving gear and driven gear ring, drives the rotating frame, traction component, second corrugated pipe, support plate, third motor, first bidirectional screw, first corrugated pipe, two sets of slide rods, first slide rail, and four sets of grippers to rotate synchronously, thereby adjusting the angle of the plate to facilitate the alignment of the two sets of plates to be spliced.

[0015] (2) The laser welding clamping mechanism for splicing dissimilar metals such as aluminum and steel is provided with an array of corrugated tubes in the mechanism. The third corrugated tube expands and contracts under the traction of the moving frame to shield and protect the outside of the unidirectional screw. During the movement of the two sets of first slide rails, the first and fourth corrugated tubes are stretched or compressed accordingly. The first and fourth corrugated tubes shield and protect the outside of the first bidirectional screw. The second and fifth corrugated tubes are stretched or contracted under the traction of the second slide rail to protect the outside of the second bidirectional screw. Without affecting the pre-adjustment, the array of screws is protected from dust during the subsequent welding process to avoid damage to the array of screws by welding dust.

[0016] (3) The laser welding clamping mechanism for splicing dissimilar metals of aluminum and steel is equipped with a synchronization component. After the two sets of dissimilar metal plates of aluminum and steel are joined, when the external laser welding equipment is used to weld the spliced ​​plates and it is necessary to adjust the angle of the two sets of plates synchronously, the second cylinder is used to adjust the moving block, the rotating cylinder and the first synchronization ring horizontally so that the first synchronization ring and the second synchronization ring are engaged. The fifth motor drives the two sets of sleeves, pulley assemblies, synchronization gears, rotating cylinders, the first synchronization ring, the second synchronization ring and the transmission gear to rotate through the cross shaft. This provides power for the driven gear ring and rotating frame in the two sets of clamping components to rotate, so as to realize the synchronous adjustment of the angle of the clamping ends on both sides of the two sets of plates. This facilitates the welding of the laser welding end and prevents the misalignment of the splicing end of the plates due to the asynchronous adjustment of the angle on both sides of the clamping end of the two sets of plates. This ensures the welding quality of the subsequent welding. Attached Figure Description

[0017] Figure 1 This is a perspective view of the present invention; Figure 2 This is a cross-sectional view of the present invention; Figure 3 This is a partial enlarged cross-sectional view of the clamping component of the present invention; Figure 4 This is an enlarged view of the angle adjusting component of the present invention; Figure 5 This is a partial enlarged cross-sectional view of the adjusting component of the present invention; Figure 6 This is an enlarged view of the traction component of the present invention; Figure 7 This is an enlarged view of the gripper of the present invention; Figure 8 This is an enlarged cross-sectional view of the synchronization component of the present invention; Figure 9 This is a partial enlarged cross-sectional view of the synchronization component of the present invention; Figure 10 This is a partial enlarged cross-sectional view of the transmission component of the present invention.

[0018] In the diagram: 1. Frame; 2. Translation component; 21. First motor; 22. One-way screw; 23. Guide rail; 3. Clamping component; 31. Moving frame; 32. Adjusting component; 321. Second motor; 322. Brake; 323. Drive gear; 324. Driven gear ring; 33. Rotating frame; 34. Adjusting component; 341. First cylinder; 342. Anti-detachment block; 343. Support plate; 344. Slide rod; 345. First slide rail; 346. Gripper; 347. First bellows; 348. First double-acting screw; 349. Third motor; 35. Traction component; 351. Four motors; 352, bevel gear assembly; 353, second bidirectional screw; 354, second slide rail; 355, guide block; 36, synchronizing component; 361, fifth motor; 362, cross shaft; 363, sleeve; 364, pulley assembly; 365, connecting component; 3651, guide rod; 3652, movable block; 3653, transmission component; 36531, synchronizing gear; 36532, rotating drum; 36533, first synchronizing ring; 3654, second synchronizing ring; 366, transmission gear; 367, second cylinder; 37, second bellows; 4, third bellows. Detailed Implementation

[0019] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0020] refer to Figures 1-10 The present invention provides the following three technical solutions: First embodiment: A laser welding clamping mechanism for splicing dissimilar metals of aluminum and steel, including a frame 1, with the long side of the frame 1 as the X-axis, the short side of the frame 1 as the Y-axis, and the height of the frame 1 as the Z-axis. The frame 1 is connected to a clamping assembly for welding and clamping dissimilar metal plates of aluminum and steel. The clamping assembly includes: a translation component 2, which is installed on the frame 1 for adjusting the horizontal position of the clamping end. The translation component 2 includes two sets of first motors 21, which are respectively fixedly connected to the left and right sides of the frame 1. The output end of the first motor 21 is coaxially fixedly connected to a one-way screw 22 that is rotatably connected to the inside of the frame 1. Two sets of guide rails 23 are respectively fixedly connected to the inside of the frame 1 near the one-way screw 22. Two sets of clamping components 3 are respectively installed on two sets of one-way screws 22 and connected to guide rails 23 for clamping the plate. The clamping component 3 includes a movable frame 31 that is threadedly connected to the one-way screws 22 and slidably connected to the guide rails 23. A rotating frame 33 is rotatably connected to the upper side of the movable frame 31 near the middle of the frame body 1. An angle adjusting component 32 for adjusting the angle of the rotating frame 33 is installed on the upper side of the frame body 1 away from the middle of the frame body 1. The movable frame 31 and the rotating frame 33 are connected together to an adjusting component 34 for adjusting the position of the clamping end along the X and Z axes. A traction component 35 for adjusting the position of the clamping end along the Y axis is installed on the rotating frame 33 near the middle of the frame body 1. The movable frame 31 is connected to a synchronizing component 36 that is connected to the frame body 1 and is used to synchronize the angle adjustment ends of the two sets of clamping components 3. The adjusting member 32 includes a second motor 321 fixedly connected to the upper side of the movable frame 31. A brake 322 for locking the output end of the second motor 321 is fixedly connected to the upper inner side of the movable frame 31. A drive gear 323 is coaxially fixedly connected to the output end of the second motor 321. A driven gear ring 324 that meshes with the drive gear 323 is coaxially fixedly connected to the inner side of the rotating frame 33 near the movable frame 31. The adjusting member 34 includes a first cylinder 341 fixedly connected to the upper side of the movable frame 31 away from the middle of the frame 1. An anti-detachment block 342 is fixedly connected to the extension side of the first cylinder 341 near the end of the rotating frame 33. A rotating block 342 is slidably connected to the rotating frame 33 along the X-axis direction. The support plate 343 is connected to the support plate 343. Two sets of slide rods 344 are vertically fixed to the front and rear sides of the support plate 343 respectively. Two sets of first slide rails 345 are slidably connected between the two sets of slide rods 344. Two sets of grippers 346 connected to the traction member 35 are slidably connected inside the first slide rails 345. The middle of the moving frame 31 is vertically rotatably connected to the first bidirectional screws 348 that are threaded to the two sets of first slide rails 345 respectively. The upper middle side of the moving frame 31 is fixedly connected to the third motor 349 whose output end is coaxially fixedly connected to the first bidirectional screws 348. The first slide rail 345 is fixedly connected to the first bellows 347 that is fixedly connected to the moving frame 31 near the outer side of the first bidirectional screws 348. The first slide rail 345 has a first slide groove along the Y-axis direction that is slidably connected to the gripper 346. The gripper 346 has a first protrusion slidably connected to the first slide groove and used to prevent dislodgement on the side of the gripper 346 near the first slide rail 345. The gripper 346 and the first slide rail 345 are perpendicular to each other. Four sets of support rods that are slidably connected to the edge of the moving frame 31 are fixedly connected to the inner side of the rotating frame 33 along the X-axis direction. The traction member 35 includes two sets of second bidirectional screws 353 that are rotatably connected to the upper and lower sides of the rotating frame 33 along the Y-axis direction. A bevel gear assembly 352 is connected to the rear side of the rotating frame 33. A fourth motor 351 for driving the two sets of bevel gear assemblies 352 is fixedly connected to the top of the rotating frame 33. A set of second slide rails 354 are threaded to both sides of the two sets of second bidirectional screws 353. Two sets of guide blocks 355 that are slidably connected to the gripper 346 are vertically slidably connected inside the second slide rails 354. The clamping member 3 also includes a second bellows 37 that is fixedly connected between the rotating frame 33 and the second slide rails 354 and located outside the second bidirectional screws 353. The output end of the fourth motor 351 is coaxially and fixedly connected to the driving bevel gears in the two sets of bevel gear assemblies 352. The driven bevel gear in the bevel gear assembly 352 is coaxially and fixedly connected to the second bidirectional screw 353. The inner side of the two sets of second slide rails 354 is provided with a second slide groove along the Z-axis direction, which is slidably connected to the guide block 355. The side of the guide block 355 is provided with a second protrusion slidably connected to the second slide groove. The guide block 355 is provided with a guide groove along the X-axis direction, which is slidably connected to the gripper 346. Through the cooperation of the two sets of first motors 21, unidirectional screws 22, and guide rails 23, the horizontal position of the two sets of clamping parts 3 is adjusted respectively, so that the first cylinder 341 adjusts the horizontal position of the anti-detachment block 342, support plate 343, third motor 349, first bidirectional screw 348, first bellows 347, two sets of slide rods 344, first slide rail 345, and four sets of grippers 346. The grippers 346 extend along the guide groove inside the guide block 355 to adjust the clamping length. The fourth motor 351 adjusts the distance between the two sets of second slide rails 354 along the Y-axis direction through two sets of bevel gear assemblies 352 and second bidirectional screw 353. The two sets of second slide rails 354 pull the four sets of guide blocks 355 and grippers 346 inside them to move, thereby adjusting the distance between the clamping ends along the Y-axis direction. The third motor 349, in conjunction with the first bidirectional screw 348 and the slide bar 344, adjusts the spacing of the two sets of first slide rails 345 along the Z-axis. Each set of first slide rails 345 drives the two sets of grippers 346 to move synchronously, thereby adjusting the vertical lateral spacing of the four sets of grippers 346. This allows the four sets of grippers 346 to clamp the sheet material of this size, and the brake 322 unlocks the output of the second motor 321. The second motor 321 then drives the rotating frame 33, traction component 35, second bellows 37, support plate 343, third motor 349, first bidirectional screw 348, first bellows 347, two sets of slide bars 344, first slide rails 345, and four sets of grippers 346 to rotate synchronously, thus achieving the function of adjusting the angle of the sheet material. Since the adjustment of the length, horizontal spacing, vertical height, and angle of the four sets of grippers 346 is performed sequentially, the adjustment operations do not interfere with each other. The main difference between the second implementation method and the first implementation method is that: Four sets of third corrugated pipes 4 are fixedly connected to both sides of the two sets of movable frames 31 and sleeved on the outer end of the one-way screw 22. The other end of the third corrugated pipe 4 is fixedly connected to the frame 1. The third corrugated pipe 4 expands and contracts under the traction of the movable frame 31, and shields and protects the outside of the one-way screw 22. A set of fourth corrugated pipes is fixedly connected to the adjacent sides of the two sets of first slide rails 345 near the outer end of the first bidirectional screw 348. During the movement of the two sets of first slide rails 345, the first corrugated pipes 347 and the fourth corrugated pipes are stretched or compressed accordingly. The first corrugated pipes 347 and the fourth corrugated pipes shield and protect the outside of the first bidirectional screw 348. A fifth corrugated pipe is fixedly connected to the adjacent sections of the two sets of second slide rails 354 near the outside of the second bidirectional screw 353. The second corrugated pipes 37 and the fifth corrugated pipes are stretched or contracted under the traction of the second slide rails 354, and play a dustproof role on the outside of the second bidirectional screw 353. The main difference between the third and second implementation methods is that: Synchronizing component 36 includes a fifth motor 361 fixedly connected to the right side of frame 1. A cross shaft 362, rotatably connected to frame 1, is coaxially fixedly connected to the left output end of the fifth motor 361. Sleeves 363, slidably connected to the cross shaft 362, are rotatably connected to the bottom center of two sets of moving frames 31 along the X-axis. A transmission gear 366, meshing with the lower end of the driven gear ring 324, is rotatably connected to the inner side of the moving frame 31. A pulley assembly 364 is connected to the sleeve 363 away from frame 1. A mating part 365 connects the pulley assembly 364 and the transmission gear 366. The moving frame 31 is close to the pulley assembly. A second cylinder 367 is fixedly connected to the upper side of 364; a sleeve 363 is coaxially fixedly connected to the drive pulley in the pulley assembly 364; a cross groove is provided in the sleeve 363 that is slidably connected to the cross shaft 362; the docking part 365 includes four sets of guide rods 3651 fixedly connected in the moving frame 31 along the X-axis direction; the four sets of guide rods 3651 are slidably connected to a movable block 3652 that is fixedly connected to the telescopic end of the second cylinder 367; a transmission component 3653 is installed in the movable block 3652; a second synchronous ring 3654 is coaxially fixedly connected to the transmission gear 366 near the transmission component 3653. Transmission component 3653 includes a rotating drum 36532 rotatably connected within the movable block 3652. A synchronous gear 36531, which is snapped into the inner side of the rotating drum 36532, is rotatably connected to the movable frame 31. The synchronous gear 36531 is coaxially and fixedly connected to the driven pulley within the pulley assembly 364. A first synchronous ring 36533 is coaxially and fixedly connected to the rotating drum 36532 on the side away from the pulley assembly 364, corresponding to the second synchronous ring 3654. The surface of the first synchronous ring 36533 is provided with a plurality of first mating teeth, and the surface of the second synchronous ring 3654 is provided with… There are several first mating teeth that match each other with second mating teeth. The sharp ends of the first mating teeth and the second mating teeth are rounded. The rotating cylinder 36532 is provided with a slot that engages with several gear teeth on the surface of the synchronous gear 36531. The clamping parts 3 are symmetrically arranged on the guide rails 23 on both sides of the frame 1. The rotating frame 33 has a slot near the gripper 346. The moving frame 31 has a movable slot near the outer side of the movable block 3652. The first motor 21, the second motor 321, the third motor 349, the fourth motor 351, and the fifth motor 361 are all servo motors. After the two sets of dissimilar aluminum and steel plates are joined, the second cylinder 367 adjusts the movable block 3652, the rotating drum 36532, and the first synchronous ring 36533 horizontally along the guide rod 3651, so that the first synchronous ring 36533 and the second synchronous ring 3654 are engaged. When the angle of the two sets of plates needs to be adjusted synchronously during the welding process of the spliced ​​plates by the external laser welding equipment, the fifth motor 361 drives the two sets of sleeves 363, the pulley assembly 364, and the synchronous gear 36531 to rotate through the cross shaft 362. The rotating synchronous gear 36531 drives the rotating drum 36532, the first synchronous ring 36533, the second synchronous ring 3654, and the transmission gear 366 to rotate synchronously, thereby providing power for the rotation of the driven gear ring 324 and the rotating frame 33 in the two sets of clamping parts 3, realizing the synchronous adjustment of the angle of the clamping ends on both sides of the two sets of plates, which facilitates the welding of the laser welding ends.

[0021] Furthermore, any content not described in detail in this specification is existing technology known to those skilled in the art.

[0022] In use, the user adjusts the horizontal position of the two sets of clamping parts 3 by coordinating the two sets of first motors 21, one-way screws 22, and guide rails 23. This allows the clamping parts 3 to move the feeding end of the aluminum-steel dissimilar sheet material. During this process, the sleeve 363 inside the clamping part 3 slides along the cross shaft 362, while the moving frame 31 pulls the two sets of third corrugated pipes 4 to extend and retract accordingly, protecting the one-way screws 22. This allows the feeding end to transport the sheet material between the four sets of grippers 346 inside the clamping part 3. The horizontal position of the anti-detachment block 342 is adjusted by the first cylinder 341. The anti-detachment block 342 pushes the support plate 343 to slide along the support rod in the X-axis direction. At the same time, the support plate 343 drives the third motor 349, the first bidirectional screw 348, and the first corrugated pipe 346. 7. The two sets of slide rods 344, the first slide rail 345, and the four sets of grippers 346 move synchronously. The grippers 346 extend along the guide groove inside the guide block 355 to a suitable length that matches the plate. The fourth motor 351 is started. The fourth motor 351 drives the two sets of second bidirectional screws 353 to rotate synchronously through the two sets of bevel gear assemblies 352. The two sets of rotating second bidirectional screws 353 adjust the distance between the two sets of second slide rails 354 along the Y-axis. The two sets of second slide rails 354 pull the four sets of guide blocks 355 inside them to move. Under the action of force transmission, the grippers 346 move with the guide blocks 355, and the first protrusion end of the grippers 346 slides along the first groove inside the first slide rail 345, so that the distance between the four sets of grippers 346 along the Y-axis matches the required clamping end of the plate. The first bidirectional screw 348 is driven to rotate by the third motor 349. The rotating first bidirectional screw 348 adjusts the spacing of the two sets of first slide rails 345 along the Z-axis. The first slide rails 345 slide along the slide rod 344 and stretch or compress the first bellows 347. Each set of first slide rails 345 drives the two sets of grippers 346 to move synchronously, thereby adjusting the vertical lateral spacing of the four sets of grippers 346 and clamping the plate of this size. The above operation is repeated to clamp another set of plates. The brake 322 is activated, which unlocks the output of the second motor 321, allowing the second motor 321 to drive the rotating frame 3 through the drive gear 323 and the driven gear ring 324. 3. Rotation: The rotating frame 33 drives the traction component 35, the second corrugated pipe 37, the support plate 343, the third motor 349, the first bidirectional screw 348, the first corrugated pipe 347, the two sets of slide rods 344, the first slide rail 345, the four sets of grippers 346, and the support rod to rotate synchronously. The rotating four sets of grippers 346 adjust the angle of the plate to the required angle, and then the brake 322 locks the output end of the second motor 321. During this process, the support plate 343 rotates along the outside of the anti-detachment block 342 without interference. The driven gear ring 324 drives the transmission gear 366 and the second synchronous ring 3654 to rotate. After the angle of the other set of plates is adjusted, the two sets of plates are docked by adjusting the distance between the two sets of clamping components 3. The second cylinder 367 adjusts the movable block 3652, the rotating drum 36532, and the first synchronous ring 36533 horizontally along the guide rod 3651. The movable block 3652 drives the rotating drum 36532 and the first synchronous ring 36533 to slide along the outer side of the synchronous gear 36531, causing the first mating tooth in the first synchronous ring 36533 to fully mesh with the second mating tooth in the second synchronous ring 3654. The other set of mating parts 365 repeats the above mating operation. During the welding process of the spliced ​​plates by external laser welding equipment, when it is necessary to synchronously adjust the angle of the two sets of plates, the brake 322 is activated, and the fifth motor 361 is started. The fifth motor 361 drives the two sets of sleeves 363 to rotate via the cross shaft 362. The rotating sleeves... 363 drives the synchronous gear 36531 to rotate via the pulley assembly 364. The rotating synchronous gear 36531 drives the rotating drum 36532, the first synchronous ring 36533, the second synchronous ring 3654, and the transmission gear 366 to rotate synchronously through the gear teeth that engage with the rotating drum 36532. The transmission gear 366 rotating in the two sets of clamping parts 3 respectively drives the driven gear ring 324, the rotating frame 33, the traction member 35, the second bellows 37, the support plate 343, the third motor 349, the first bidirectional screw 348, the first bellows 347, the two sets of slide rods 344, the first slide rail 345, the four sets of grippers 346, and the support rod to rotate, so as to realize the synchronous adjustment of the angle of the clamping ends on both sides of the two sets of plates, which facilitates the welding of the laser welding end.

[0023] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0024] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A laser welding clamping mechanism for splicing dissimilar metals such as aluminum and steel, comprising a frame (1), characterized in that: The frame (1) is connected to a clamping assembly for welding and clamping dissimilar metal plates of aluminum and steel, the clamping assembly comprising: The translation component (2) is installed on the frame (1) for adjusting the horizontal position of the clamping end. The translation component (2) includes two sets of first motors (21) fixedly connected to the left and right sides of the frame (1) respectively. The output end of the first motor (21) is coaxially fixedly connected to a one-way screw (22) rotatably connected to the inside of the frame (1). Two sets of guide rails (23) are fixedly connected to the inside of the frame (1) on both sides near the one-way screw (22). Two sets of clamping parts (3) are respectively installed on two sets of one-way screws (22) and connected to the guide rail (23) for clamping the plate. The clamping part (3) includes a movable frame (31) that is threadedly connected to the one-way screw (22) and slidably connected to the guide rail (23). A rotating frame (33) is rotatably connected to the upper side of the movable frame (31) near the middle of the frame body (1). An angle adjusting part (32) for adjusting the angle of the rotating frame (33) is installed on the upper side of the frame body (1) away from the middle of the frame body (1). An adjusting part (34) for adjusting the position of the clamping end along the X and Z axes is connected to the movable frame (31) and the rotating frame (33). A traction part (35) for adjusting the position of the clamping end along the Y axis is installed on the rotating frame (33) near the middle of the frame body (1). A synchronizing part (36) is connected to the movable frame (31) and is used to synchronize the angle adjustment ends of the two sets of clamping parts (3). Four sets of third corrugated pipes (4) are fixedly connected to both sides of two sets of movable frames (31) and sleeved on the outer end of the one-way screw (22). The other end of the third corrugated pipe (4) is fixedly connected to the frame (1).

2. The laser welding clamping mechanism for splicing dissimilar metals such as aluminum and steel according to claim 1, characterized in that: The adjusting component (32) includes a second motor (321) fixedly connected to the upper side of the moving frame (31). A brake (322) for locking the output end of the second motor (321) is fixedly connected to the upper inner side of the moving frame (31). A drive gear (323) is fixedly connected to the output end of the second motor (321) on the same axis. A driven gear ring (324) that meshes with the drive gear (323) is fixedly connected to the inner side of the rotating frame (33) on the same axis.

3. The laser welding clamping mechanism for splicing dissimilar metals such as aluminum and steel according to claim 2, characterized in that: The adjusting component (34) includes a first cylinder (341) fixedly connected to the upper side of the movable frame (31) away from the middle of the frame (1). An anti-detachment block (342) is fixedly connected to the telescopic side of the first cylinder (341) near the end of the rotating frame (33). A support plate (343) rotatably connected to the anti-detachment block (342) is slidably connected inside the rotating frame (33) along the X-axis direction. Two sets of slide rods (344) are vertically fixedly connected to the front and rear sides of the support plate (343). Two sets of first slide rails (345) are slidably connected between the two sets of slide rods (344). Two sets of grippers (346) connected to the traction member (35) are slidably connected inside the first slide rail (345). The middle part of the moving frame (31) is vertically rotatably connected to a first bidirectional screw (348) that is threadedly connected to the two sets of first slide rails (345). The upper part of the middle part of the moving frame (31) is fixedly connected to a third motor (349) whose output end is coaxially fixedly connected to the first bidirectional screw (348). The first slide rail (345) is fixedly connected to the outer side of the first bidirectional screw (348) and to the moving frame (31).

4. The laser welding clamping mechanism for splicing dissimilar metals such as aluminum and steel according to claim 3, characterized in that: The first slide rail (345) is provided with a first slide groove along the Y-axis direction to slide and connect with the gripper (346). The gripper (346) is provided with a first protrusion that is slidably connected in the first slide groove and used to prevent detachment on the side near the first slide rail (345). A set of fourth corrugated pipes are fixedly connected to the adjacent sides of the two sets of first slide rails (345) near the outer end of the first bidirectional screw (348). The gripper (346) is perpendicular to the first slide rail (345). Four sets of support rods that are slidably connected to the edge of the moving frame (31) are fixedly connected to the inner side of the rotating frame (33) along the X-axis direction.

5. The laser welding clamping mechanism for splicing dissimilar metals such as aluminum and steel according to claim 4, characterized in that: The traction component (35) includes two sets of second bidirectional screws (353) rotatably connected to the upper and lower sides of the rotating frame (33) along the Y-axis direction. A bevel gear assembly (352) is connected to the rear side of the second bidirectional screws (353). A fourth motor (351) for driving the two sets of bevel gear assemblies (352) is fixedly connected to the top of the rotating frame (33). A set of second slide rails (354) is threaded to both sides of the two sets of second bidirectional screws (353). Two sets of guide blocks (355) that are slidably connected to the grippers (346) are vertically slidably connected inside the second slide rails (354). The clamping component (3) also includes a second bellows (37) fixedly connected between the rotating frame (33) and the second slide rails (354) and located outside the second bidirectional screws (353).

6. The laser welding clamping mechanism for splicing dissimilar metals such as aluminum and steel according to claim 5, characterized in that: The output end of the fourth motor (351) is coaxially and fixedly connected to the active bevel gears in the two sets of bevel gear assemblies (352). The driven bevel gear in the bevel gear assembly (352) is coaxially and fixedly connected to the second bidirectional screw (353). The inner side of the two sets of second slide rails (354) is provided with a second slide groove that is slidably connected to the guide block (355) along the Z-axis direction. The side of the guide block (355) is provided with a second protrusion that is slidably connected to the second slide groove. The inner side of the guide block (355) is provided with a guide groove that is slidably connected to the gripper (346) along the X-axis direction. The adjacent sections of the two sets of second slide rails (354) are fixedly connected to the outer side of the second bidirectional screw (353) with a fifth bellows.

7. The laser welding clamping mechanism for splicing dissimilar metals such as aluminum and steel according to claim 6, characterized in that: The synchronizing element (36) includes a fifth motor (361) fixedly connected to the right side of the frame (1). The output end of the fifth motor (361) is coaxially fixedly connected to a cross shaft (362) rotatably connected to the frame (1). The bottom middle of the two sets of moving frames (31) is rotatably connected to a sleeve (363) slidably connected to the cross shaft (362) along the X-axis. The inner side of the moving frame (31) is rotatably connected to a transmission gear (366) meshing with the lower end of the driven gear ring (324). The sleeve (363) is connected to a pulley assembly (364) on the side away from the frame (1). A mating part (365) is connected between the pulley assembly (364) and the transmission gear (366). The upper side of the moving frame (31) near the pulley assembly (364) is fixedly connected to a second cylinder (367).

8. The laser welding clamping mechanism for splicing dissimilar metals such as aluminum and steel according to claim 7, characterized in that: The sleeve (363) is coaxially and fixedly connected to the drive pulley in the pulley assembly (364). The sleeve (363) is provided with a cross groove that is slidably connected to the cross shaft (362). The docking part (365) includes four sets of guide rods (3651) fixedly connected in the moving frame (31) along the X-axis direction. The four sets of guide rods (3651) are slidably connected to a movable block (3652) that is fixedly connected to the telescopic end of the second cylinder (367). A transmission component (3653) is installed in the movable block (3652). The transmission gear (366) is coaxially and fixedly connected to a second synchronous ring (3654) near the transmission component (3653).

9. The laser welding clamping mechanism for splicing dissimilar metals such as aluminum and steel according to claim 8, characterized in that: The transmission component (3653) includes a rotating cylinder (36532) rotatably connected within the movable block (3652). The movable frame (31) is rotatably connected to a synchronous gear (36531) that is engaged with the inner side of the rotating cylinder (36532). The synchronous gear (36531) is coaxially and fixedly connected to the driven pulley in the pulley assembly (364). On the side of the rotating cylinder (36532) away from the pulley assembly (364), a first synchronous ring (36533) is coaxially and fixedly connected to the second synchronous ring (3654). The surface of the first synchronous ring (36533) is provided with a plurality of first mating teeth. The surface of the second synchronous ring (3654) is provided with a plurality of second mating teeth that match the first mating teeth. The rotating cylinder (36532) is provided with a groove that engages with a plurality of teeth on the surface of the synchronous gear (36531).

10. The laser welding clamping mechanism for splicing dissimilar metals such as aluminum and steel according to claim 9, characterized in that: The clamping member (3) is symmetrically arranged on the guide rail (23) on both sides of the frame (1). The rotating frame (33) has a slot on the side near the gripper (346). The moving frame (31) has an active slot on the outside of the movable block (3652). The first motor (21), the second motor (321), the third motor (349), the fourth motor (351), and the fifth motor (361) are all servo motors.

Images