Laser welding jointed board device

Abstract

The utility model belongs to the technical field of laser welding, and particularly relates to a laser welding jointed board device which comprises a working table, two working frames are fixedly connected to the top of the working table, a driving mechanism is arranged between the two working frames, a laser equipment body is installed on the driving mechanism, and limiting assemblies are arranged on the two sides of the laser equipment body. Through cooperation of the limiting plates, the moving plate, the top plate and the bottom plate, a plate is placed between the two limiting plates, the limiting plates limit the plate in the middle of the moving plate, then the top plate is moved towards the bottom plate, and the plate is fixed to the moving plate through the top plate and the bottom plate; and then the motor is started, the output shaft of the motor drives the bidirectional ball screw to rotate, the bidirectional ball screw drives the movable plate to move in the opposite direction, the movable plate drives the top plate, the bottom plate and the plates to gradually move towards the middle till the two plates make close contact and stop moving, and the problem that welding deviation is caused due to the fact that the plates are not limited is solved.

Description

Technical Field

[0001] This utility model belongs to the field of laser welding technology, specifically a laser welding panel assembly device. Background Technology

[0002] Laser welding technology is a novel concept in automotive body design and manufacturing. It has significant effects on reducing the weight of automobiles and reducing the types and number of molds. Laser welding usually requires the edges of two plates to be joined together and then laser welding is performed at the joint.

[0003] A Chinese patent with publication number CN220029021U discloses a laser welding splicing device, including a support plate, connecting frames mounted on both sides of the support plate, positioning frames installed on the sides of the connecting frames, a guide rail set at the bottom of the support plate, and a sliding groove fixed to the bottom of the support plate and wrapped around the top of the guide rail. The connecting frame includes side plates fixed to both sides of the top surface of the support plate, connecting blocks fixed to the ends of the side plates, and fastening bolts passing through the connecting blocks and threadedly connected to the connecting blocks. The support plate can slide on the guide rail, supports the plates to be welded, and the positioning frames fix the plates. By moving the support plate, the edges of the two plates are aligned. During welding, by tightening the fastening bolts, the splicing joints of the two support plates are tightly fitted, thereby keeping the splicing joints of the two plates tightly fitted and fixed, thus achieving the technical effect of improving welding accuracy.

[0004] In the above technology, the structure of the pallet is fixed. When the plate is placed on the pallet, it can be fixed on the pallet or moved and spliced. However, for plates of different sizes, if they are not at the upper limit of the pallet, the two plates may not be aligned and there may be a deviation in width, which will cause deviation during welding and result in poor welding effect.

[0005] Therefore, a laser welding panel assembly device is proposed to address the above problems. Utility Model Content

[0006] To overcome the shortcomings of existing technologies and solve the problem that the lack of plate limiters may lead to misalignment between two plates, resulting in welding deviations, a laser welding splicing device is proposed.

[0007] The technical solution adopted by this utility model to solve its technical problem is as follows: A laser welding panel assembly device of this utility model includes a worktable. Two work frames are fixedly connected to the top of the worktable. A driving mechanism is provided between the two work frames. A laser equipment body is mounted on the driving mechanism. Limiting components are provided on both sides of the laser equipment body. The limiting components include two fixed plates fixedly connected to the top of the worktable. A bidirectional ball screw is rotatably connected between the two fixed plates via bearings. Two moving plates are symmetrically threaded onto the bidirectional ball screw. A motor is fixedly connected to one of the fixed plates, and the output shaft of the motor is fixedly connected to the bidirectional ball screw. Two guide rods are fixedly connected between the two fixed plates, and the moving plates are slidably connected to the guide rods. A bottom plate is fixedly connected to each moving plate, and a top plate is slidably connected to each moving plate. A plate is provided between the top plate and the bottom plate. Limiting plates are provided on both sides of the moving plates.

[0008] Preferably, each of the movable plates is rotatably connected to a threaded rod via a bearing; each of the top plates is threaded onto the top plate; each of the threaded rods has a rotating block fixed to its top; and each of the adjacent sidewalls of the top plate and the bottom plate has a rubber pad fixed to its sidewall.

[0009] Preferably, two crossbars are fixedly connected to each of the base plates, and the limiting plate is slidably connected to both ends of the two crossbars; a spring is sleeved on the outside of each crossbar, and the two ends of the spring are fixedly connected to the limiting plate and the base plate respectively.

[0010] Preferably, rotating rods are rotatably connected to the side walls of the work frame via pins, and pressure rollers are rotatably connected between two opposing rotating rods via roller shafts; gears are fixedly connected to two adjacent pins; electric push rods are fixedly connected to the side walls of the work frame, and double-sided racks are fixedly connected to the output end of the electric push rods, with all gears meshing with the double-sided racks.

[0011] Preferably, a slider is fixed to the bottom of the double-sided rack, and a groove is provided on the work frame, in which the slider is slidably connected.

[0012] Preferably, the top of the workbench is provided with a groove, and multiple scanners are fixedly connected in the groove, each of which cooperates with the main body of the laser device.

[0013] The beneficial effects of this utility model are:

[0014] This invention provides a laser welding panel assembly device. Through the cooperation of a limiting plate, a moving plate, a top plate, and a bottom plate, the panel is placed between two limiting plates, which confine the panel to the center of the moving plate. Then, by moving the top plate towards the bottom plate, the panel is fixed to the moving plate by the top and bottom plates. Next, the motor is turned on, and its output shaft drives a bidirectional ball screw to rotate. Because a ball nut seat is provided at the connection between the bidirectional ball screw and the moving plate, the radial movement of the moving plate is ensured. The bidirectional ball screw drives the moving plate to move in the opposite direction, and the moving plate drives the top plate, bottom plate, and panel to gradually move towards the center until the two panels are in close contact, at which point the movement stops. This solves the problem of welding deviation caused by the lack of panel confinement.

[0015] This utility model provides a laser welding panel assembly device. By setting up a double-sided rack and gear, when the moving plate drives the panel to move towards the center, in order to prevent the middle position of the panel from tilting and becoming unstable, an electric push rod needs to be activated. The output end of the electric push rod drives the double-sided rack to move, which in turn drives the gear to rotate. The gear drives the pin and rotating rod to rotate, which in turn drives the pressure roller to rotate. The pressure roller flattens one end of the panel, which helps to improve the quality of laser welding. Attached Figure Description

[0016] The accompanying drawings, which are included to provide a further understanding of the present invention and form part of this application, illustrate exemplary embodiments of the present invention and, together with their description, serve to explain the present invention, but do not constitute an undue limitation thereof. In the drawings:

[0017] Figure 1 This is the first perspective view of the present invention;

[0018] Figure 2 This is the second perspective view of the present invention;

[0019] Figure 3 This is a perspective view of the movable plate in this utility model;

[0020] Figure 4 This is a perspective view of the top plate and bottom plate in this utility model;

[0021] Figure 5 This is a perspective view of the gear and double-sided rack in this utility model;

[0022] Figure 6 This is a perspective view of the limiting plate in this utility model;

[0023] Legend:

[0024] 1. Workbench; 2. Work frame; 21. Drive mechanism; 22. Laser equipment body; 3. Fixed plate; 31. Moving plate; 311. Base plate; 312. Top plate; 313. Rotating block; 314. Threaded rod; 32. Bidirectional ball screw; 33. Guide rod; 34. Motor; 35. Limiting plate; 351. Crossbar; 352. Spring; 4. Pressure roller; 41. Rotating rod; 42. Gear; 43. Double-sided rack; 44. Electric push rod; 45. Slide groove; 5. Groove; 51. Scanner. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0026] Specific implementation examples are given below.

[0027] Please see Figures 1-6 This utility model provides a laser welding panel assembly device, including a worktable 1. Two work frames 2 are fixedly connected to the top of the worktable 1, and a drive mechanism 21 is provided between the two work frames 2. A laser equipment body 22 is mounted on the drive mechanism 21, and limiting components are provided on both sides of the laser equipment body 22. The limiting components include two fixed plates 3 fixedly connected to the top of the worktable 1, and a bidirectional ball screw 32 is rotatably connected between the two fixed plates 3 via bearings. Two movable plates 31 are symmetrically threaded onto the bidirectional ball screw 32. A motor 34 is fixedly connected to one of the fixed plates 3, and the output shaft of the motor 34 is fixedly connected to the bidirectional ball screw 32. Two guide rods 33 are fixedly connected between the two fixed plates 3, and the movable plate 31 is slidably connected to the guide rods 33. A bottom plate 311 is fixedly connected to each movable plate 31, and a top plate 312 is slidably connected to each movable plate 31. A plate is provided between the top plate 312 and the bottom plate 311. Limiting plates 35 are provided on both sides of the movable plate 31.

[0028] In the existing technology, since the structure of the pallet is fixed, if the upper limit of the pallet is not reached for plates of different sizes, the two plates may not be aligned and there may be a deviation in width, which will cause deviation during welding and result in poor welding effect.

[0029] During operation, the sheet metal is placed between two limiting plates 35, which limit the sheet metal to the middle of the moving plate 31. Then, the top plate 312 is moved towards the bottom plate 311, and the sheet metal is fixed on the moving plate 31 by the top plate 312 and the bottom plate 311. Then, the motor 34 is turned on, and the output shaft of the motor 34 drives the bidirectional ball screw 32 to rotate. Since there is a ball nut seat at the connection between the bidirectional ball screw 32 and the moving plate 31, the ball nut seat ensures the radial movement of the moving plate 31. The bidirectional ball screw 32 drives the moving plate 31 to move in the opposite direction. The moving plate 31 drives the top plate 312, the bottom plate 311 and the sheet metal to gradually move towards the middle until the two sheets are in close contact and the movement stops. This solves the problem of welding deviation caused by the lack of sheet metal limiting. Then, the drive mechanism 21 is turned on to drive the main body 22 of the laser equipment to move and weld the joint of the sheet metal.

[0030] Furthermore, such as Figure 3 and Figure 4 As shown, each of the movable plates 31 is rotatably connected to a threaded rod 314 via a bearing; each of the top plates 312 is threadedly connected to the top plate 312; each of the threaded rods 314 has a rotating block 313 fixedly attached to its top; and each of the adjacent side walls of the top plate 312 and the bottom plate 311 has a rubber pad fixedly attached to it.

[0031] During operation, when fixing the plate 3, it is necessary to rotate the rotating block 313. The rotating block 313 drives the top plate 312 to move downward. The top plate 312 fixes the plate between the top plate 312 and the bottom plate 311. By setting rubber pads, the edges of the plate are protected and buffered to prevent damage to the plate.

[0032] Furthermore, such as Figure 4 and Figure 6 As shown, two crossbars 351 are fixedly connected to the base plate 311, and the limiting plate 35 is slidably connected to both ends of the two crossbars 351; a spring 352 is sleeved on the outside of the crossbars 351, and the two ends of the spring 352 are fixedly connected to the limiting plate 35 and the base plate 311 respectively.

[0033] During operation, when the plate is positioned, the two limiting plates 35 are opened, the spring 352 is stretched, the plate is placed on the base plate 311, and then the limiting plates 35 are slowly released. Under the action of the spring 352, the limiting plates 35 quickly return to their original position, limiting the plate in the middle position between the two limiting plates 35.

[0034] Furthermore, such as Figure 5As shown, rotating rods 41 are rotatably connected to the side walls of the work frame 2 via pins, and pressure rollers 4 are rotatably connected between two opposing rotating rods 41 via roller shafts; gears 42 are fixedly connected to two adjacent pins; electric push rods 44 are fixedly connected to the side walls of the work frame 2, and double-sided racks 43 are fixedly connected to the output end of the electric push rods 44, and the gears 42 mesh with the double-sided racks 43.

[0035] During operation, when the moving plate 31 moves the plate towards the center, to prevent the plate from warping and becoming unstable in the middle, the electric push rod 44 needs to be activated. The output end of the electric push rod 44 drives the double-sided rack 43 to move, which in turn drives the gear 42 to rotate. The gear 42 then drives the pin and rotating rod 41 to rotate, which in turn drives the pressure roller 4 to rotate. The pressure roller 4 flattens one end of the plate, which helps improve the quality of laser welding.

[0036] Furthermore, such as Figure 5 As shown, a slider is fixed to the bottom of the double-sided rack 43, and a groove 45 is provided on the work frame 2, in which the slider is slidably connected.

[0037] During operation, the double-sided rack 43 drives the slider to move, and the slider slides in the groove 45, thus limiting the double-sided rack 43 in the vertical direction.

[0038] Furthermore, such as Figure 3 As shown, a groove 5 is provided on the top of the workbench 1, and multiple scanners 51 are fixedly connected in the groove 5. Each scanner 51 is engaged with the main body 22 of the laser device.

[0039] During operation, after the boards are joined, the scanner 51 scans the board joining status. If there is a gap or misalignment in the board joining, the scanner 51 transmits the data to the computer, triggers an alarm in the computer program, and then the board is replaced or adjusted.

[0040] Working principle: By opening the two limiting plates 35, the spring 352 is stretched, placing the plate on the base plate 311. Then, the limiting plates 35 are slowly released, and under the action of the spring 352, the limiting plates 35 quickly return to their original position, limiting the plate in the middle position between the two limiting plates 35. Then, the rotating block 313 is rotated, which drives the top plate 312 to move downward. The top plate 312 fixes the plate between the top plate 312 and the base plate 311. Rubber pads are provided to protect and buffer the edges of the plate, preventing damage. Then, the motor 34 is turned on, and the output shaft of the motor 34 drives the bidirectional ball screw 32 to rotate. Since the connection between the bidirectional ball screw 32 and the moving plate 31 is provided with a ball nut seat, the radial movement of the moving plate 31 is ensured by the ball nut seat, and the bidirectional ball screw 32 drives the plate to rotate. The movable plate 31 moves in the opposite direction, driving the top plate 312, bottom plate 311, and plate gradually towards the center until the two plates are in close contact and the movement stops. This solves the problem of welding deviation caused by the lack of plate limit. When the movable plate 31 drives the plate towards the center, to prevent the plate from tilting and becoming unstable in the middle, the electric push rod 44 needs to be activated. The output end of the electric push rod 44 drives the double-sided rack 43 to move, which in turn drives the gear 42 to rotate. The gear 42 drives the pin shaft and rotating rod 41 to rotate, which in turn drives the pressure roller 4 to rotate. The pressure roller 4 flattens one end of the plate, which helps to improve the quality of laser welding. Finally, the drive mechanism 21 is activated to drive the main body 22 of the laser equipment to move and weld the joint of the plates.

[0041] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. A laser welding panel assembly device, comprising a worktable (1), two work frames (2) fixedly connected to the top of the worktable (1), a driving mechanism (21) provided between the two work frames (2), a laser equipment body (22) mounted on the driving mechanism (21), and limiting components provided on both sides of the laser equipment body (22); characterized in that: The limiting assembly includes two fixed plates (3) fixed to the top of the workbench (1). A bidirectional ball screw (32) is rotatably connected between the two fixed plates (3) via a bearing. Two movable plates (31) are symmetrically threaded onto the bidirectional ball screw (32). A motor (34) is fixed to one of the fixed plates (3), and the output shaft of the motor (34) is fixed to the bidirectional ball screw (32). Two guide rods (33) are fixed between the two fixed plates (3), and the movable plates (31) are slidably connected to the guide rods (33). A bottom plate (311) is fixed to each movable plate (31), and a top plate (312) is slidably connected to each movable plate (31). A plate is provided between the top plate (312) and the bottom plate (311). Limiting plates (35) are provided on both sides of the movable plates (31).

2. The laser welding panel assembly device according to claim 1, characterized in that: Each movable plate (31) is rotatably connected to a threaded rod (314) via a bearing; each top plate (312) is threadedly connected to the top plate (312); each threaded rod (314) is fixedly connected to a rotating block (313); and each top plate (312) and bottom plate (311) is fixedly connected to a rubber pad on the adjacent sidewalls.

3. The laser welding panel assembly device according to claim 2, characterized in that: Two crossbars (351) are fixedly connected to the base plate (311), and the limiting plate (35) is slidably connected to the two ends of the two crossbars (351); a spring (352) is sleeved on the outside of the crossbar (351), and the two ends of the spring (352) are fixedly connected to the limiting plate (35) and the base plate (311) respectively.

4. The laser welding panel assembly device according to claim 3, characterized in that: The side walls of the work frame (2) are rotatably connected to rotating rods (41) via pins, and pressure rollers (4) are rotatably connected between two opposite rotating rods (41) via roller shafts; gears (42) are fixedly connected to two adjacent pins; electric push rods (44) are fixedly connected to the side walls of the work frame (2), and double-sided racks (43) are fixedly connected to the output end of the electric push rods (44), and the gears (42) mesh with the double-sided racks (43).

5. The laser welding panel assembly device according to claim 4, characterized in that: The bottom of the double-sided rack (43) is fixed with a slider, and the work frame (2) is provided with a groove (45), in which the slider is slidably connected.

6. The laser welding panel assembly device according to claim 5, characterized in that: The top of the workbench (1) is provided with a groove (5), and multiple scanners (51) are fixed in the groove (5). Each scanner (51) is engaged with the main body (22) of the laser device.

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