Automobile sunroof iron frame welding machine

Abstract

The utility model belongs to the field of automobile sunroof iron frame production, disclose a kind of automobile sunroof iron frame welding machine, including the rack device for supporting, still including the execution device for both sides simultaneous welding being arranged in rack device one end, rack device is away from the transposition device for supporting rotating switching station being arranged in execution device one end, two positioning clamps are symmetrically installed on transposition device;Transposition device includes rotating table, and rotating table bottom is provided with first motor, and rotating table is rectangle, and two ends symmetrically are provided with two clamping components for pressing down sunroof iron frame body fixed;Execution device includes limiting crosspiece, and limiting crosspiece middle is provided with swing component for turning over to avoid.Synergic innovation design of "rotary double station" and "swing synchronous welding", ingeniously solve the contradiction between production efficiency and welding quality, while realizing efficient production, guarantee the high precision and low deformation of product, and have the advantages of space layout optimization and operation safety convenient.

Description

Technical Field

[0001] This utility model belongs to the field of automobile sunroof iron frame production, and in particular relates to an automobile sunroof iron frame welding machine. Background Technology

[0002] Welding the metal frame of an automotive sunroof is a critical process in automobile manufacturing, directly impacting the sunroof's sealing performance, structural strength, and overall vehicle aesthetics. Traditional welding methods, such as resistance welding, while widely used, have limitations such as a large heat-affected zone and susceptibility to sheet metal deformation, making them unsuitable for the lightweight and high-precision demands of modern automobiles. With technological advancements, laser welding has gradually become the mainstream solution. It achieves micron-level precision welding using a high-energy-density laser beam, resulting in smooth, flat welds with a minimal heat-affected zone, effectively preventing warping and significantly improving the sunroof's flatness and dimensional stability. Furthermore, laser welding offers a high depth ratio and excellent airtightness and watertightness, ensuring the long-term reliability of the sunroof.

[0003] Comparing with Chinese Patent No. CN223476744U, a rotary iron frame welding device is disclosed, including a support frame one and a connecting seat. The support frame one has a U-shaped structure, and the connecting seat is rotatably mounted on the support frame one. A worm gear reducer motor is installed on the side wall of the support frame one, and the output shaft of the worm gear reducer motor passes through the side wall of the support frame one. The output shaft of the worm gear reducer motor is fixedly connected to one end of the connecting seat. A square support frame two is installed on the top of the connecting seat, and an adjusting frame is slidably arranged on both sides of the square support frame two. Both the square support frame two and the adjusting frames are hollow structures. The square support frame two is provided with an adjusting component for adjusting the sliding of the adjusting frame. Both adjusting frames are provided with multiple sets of clamping parts for clamping the iron frame. By adjusting the extension distance of the adjusting frame, iron frames of different sizes can be clamped.

[0004] However, the aforementioned patent only has one workstation, and welding and disassembly can only be performed sequentially, which greatly increases the downtime and waiting time, seriously affecting the welding speed of the car sunroof iron frame. Therefore, a new type of equipment needs to be designed. Utility Model Content

[0005] The purpose of this invention is to provide a welding machine for automotive sunroof iron frames to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A welding machine for a car sunroof frame includes a support frame and an execution device for simultaneous welding on both sides, located at one end of the frame. A switching device for supporting a rotating workstation is located at the end of the frame away from the execution device. Two positioning fixtures are symmetrically mounted on the switching device. The switching device includes a rotary table with a first motor at its bottom. The rotary table is rectangular, and two clamping components for pressing down and fixing the sunroof frame body are symmetrically arranged at both ends. The positioning fixtures include a fixture body fixedly mounted on the rotary table, with four positioning pins evenly distributed on the fixture body, arranged in pairs. The execution device includes a limiting crossbeam with a swing component for tilting and avoiding obstacles in the middle. A positive and negative threaded screw is located inside the limiting crossbeam, with a second motor at one end of each screw. Two limiting slides are symmetrically mounted on the positive and negative threaded screws, and laser welding heads are installed at the ends of the limiting slides.

[0008] Furthermore: the frame assembly includes a base plate, with support platforms and vertical supports respectively installed at both ends of the base plate.

[0009] Furthermore: the output end of the first motor passes through the support platform and is connected to the rotary table via a key.

[0010] Furthermore: the swing assembly includes a swing frame rotatably mounted on the top of a vertical support, and a third motor is provided on one side of the swing frame.

[0011] Furthermore: the clamping assembly includes two telescopic cylinders arranged symmetrically, with a fixed seat installed at the top of each telescopic cylinder, and a support shaft rotatably installed between the two fixed seats. The support shaft spans above the clamping body, and a clamping block is rotatably installed on the support shaft.

[0012] Furthermore, the clamping block has a triangular cross-sectional shape.

[0013] Furthermore: the top of the locating pin is chamfered.

[0014] Compared with existing technologies, the beneficial effects are:

[0015] Through the collaborative innovative design of "rotary dual-station" and "swing-rotation synchronous welding," the contradiction between production efficiency and welding quality is cleverly resolved. While achieving high-efficiency production, it ensures high precision and low deformation of the product, and also boasts the advantages of optimized spatial layout and safe and convenient operation. The "station switching" function is realized by setting up two symmetrical positioning fixtures and a 180-degree rotatable switching device. While welding is being performed at one station, the other station can simultaneously disassemble and assemble the workpiece, completely eliminating the equipment waiting time caused by loading and unloading in traditional welding. This allows welding operations to be performed almost continuously, doubling production efficiency. Simultaneously, the actuator uses positive and negative threaded screws to drive two laser welding heads to move synchronously in opposite directions, achieving simultaneous and symmetrical welding of the weld seams on both sides of the workpiece. This effectively avoids thermal stress concentration and welding deformation caused by sequential welding, significantly improving the dimensional stability and welding quality of the product. The actuator can achieve rotation from vertical to horizontal through the swing assembly (swing frame and third motor). When not in operation, components such as the laser welding head can be stored vertically, reducing the vertical space occupied by the equipment. When welding is required, the components are flipped to the working position, making the equipment structure more compact and easier to arrange in the production line. At the same time, the high-power laser welding components are moved out of the operator's regular work area, improving the safety of the equipment. The triangular cross-section clamping block is pressed down by the telescopic cylinder, which can stably press the sunroof iron frame onto the fixture body, preventing displacement caused by vibration or thermal deformation during the welding process and ensuring welding accuracy. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a structural schematic diagram of a welding machine for an automotive sunroof frame as described in this utility model;

[0018] Figure 2 This is a schematic diagram of the frame device of the automotive sunroof iron frame welding machine described in this utility model;

[0019] Figure 3 This is a schematic diagram of the switching device of the automotive sunroof iron frame welding machine described in this utility model;

[0020] Figure 4 This is a front view of the transposition device of the automotive sunroof iron frame welding machine described in this utility model;

[0021] Figure 5This is a schematic diagram of the positioning fixture for a welding machine for an automotive sunroof frame as described in this utility model;

[0022] Figure 6 This is a schematic diagram of the actuator of the automotive sunroof iron frame welding machine described in this utility model.

[0023] In the attached drawings, the following are the reference numerals: 1. Frame assembly; 2. Positioning device; 3. Positioning fixture; 4. Actuating device; 5. Sunroof frame body; 11. Foundation plate; 12. Support platform; 13. Vertical bracket; 21. Rotary table; 22. First motor; 23. Telescopic cylinder; 24. Fixed seat; 25. Support shaft; 26. Clamping block; 31. Fixture body; 32. Positioning pin; 41. Swing frame; 42. Third motor; 43. Limiting crossbeam; 44. Positive and negative threaded screw; 45. Second motor; 46. Limiting slide; 47. Laser welding head. Detailed Implementation

[0024] The embodiments of this utility model will now be described in detail. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without inventive effort are within the scope of protection of this utility model.

[0025] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0026] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0027] Please see Figures 1-6 A welding machine for a car sunroof frame includes a frame device 1 for support, and an execution device 4 for simultaneous welding on both sides, located at one end of the frame device 1. A switching device 2 for supporting the rotation switching station is located at the end of the frame device 1 away from the execution device 4. Two positioning clamps 3 are symmetrically installed on the switching device 2.

[0028] In this embodiment: the frame device 1 includes a base plate 11, and a support platform 12 and a vertical bracket 13 are respectively provided at both ends of the base plate 11; the base plate 11 fixes the support platform 12 and the vertical bracket 13, the support platform 12 supports the first motor 22 to drive the rotary table 21 to rotate, and the vertical bracket 13 supports the third motor 42 to drive the swing frame 41 from vertical to horizontal.

[0029] In this embodiment: the shifting device 2 includes a rotating table 21, a first motor 22 is provided at the bottom of the rotating table 21, the rotating table 21 is rectangular, and two clamping components for pressing down and fixing the sunroof iron frame body 5 are symmetrically arranged at both ends; the output end of the first motor 22 passes through the support platform 12 and is connected to the rotating table 21 by a key; the clamping components include two telescopic cylinders 23 symmetrically arranged, a fixed seat 24 is installed at the top of the telescopic cylinder 23, and a support shaft 25 is rotatably installed between the two fixed seats 24, the support shaft 25 spans the clamp. Above the main body 31, a clamping block 26 is rotatably mounted on the support shaft 25; the clamping block 26 has a triangular cross-sectional shape; the rotary table 21 supports the telescopic cylinder 23 to retract, and drives the support shaft 25 to press down the clamping block 26 through the fixed seat 24, so that the clamping block 26 presses the sunroof iron frame body 5 tightly onto the clamping body 31. Then, the support platform 12 supports the first motor 22 to drive the rotary table 21 to rotate, which drives the clamping body 31 to support the sunroof iron frame body 5 to the welding position, while the opposite clamping body 31 rotates to the disassembly position.

[0030] In this embodiment: the positioning fixture 3 includes a fixture body 31 fixedly installed on the rotating table 21. Four positioning pins 32 are evenly distributed on the fixture body 31, with two pins forming a group. The top of the positioning pin 32 is chamfered. The sunroof iron frame body 5 is positioned by inserting the positioning pins 32 into the fixture body 31.

[0031] In this embodiment: the actuator 4 includes a limiting crossbeam 43, a swing assembly for flipping and avoiding obstacles is provided in the middle of the limiting crossbeam 43, a positive and negative threaded screw 44 is provided inside the limiting crossbeam 43, a second motor 45 is provided at one end of the positive and negative threaded screw 44, two limiting slides 46 are symmetrically installed on the positive and negative threaded screw 44, and laser welding heads 47 are installed at the ends of the limiting slides 46; the swing assembly includes a swing frame 41 rotatably installed at the top of the vertical bracket 13, a third motor 42 is provided on one side of the swing frame 41; the vertical bracket 13 supports the third motor 42 to drive the swing frame 41 from vertical to horizontal, driving the limiting crossbeam 43 to rotate, so that the laser welding heads 47 rotate to both ends of the welding position, then the limiting crossbeam 43 supports the second motor 45 to drive the positive and negative threaded screw 44 to rotate, pushing the limiting slides 46 to drive the laser welding heads 47 to move closer to each other, so that the laser welding heads 47 weld the sunroof iron frame body 5 from both ends at the same time.

[0032] Working principle: First, the sunroof frame body 5 is positioned on the clamp body 31 by inserting the positioning pin 32. The rotary table 21 supports the retraction cylinder 23, which in turn drives the support shaft 25 to press down the clamping block 26 through the fixed seat 24, so that the clamping block 26 presses the sunroof frame body 5 tightly onto the clamp body 31. Then, the support platform 12 supports the first motor 22 to drive the rotary table 21 to rotate, which drives the clamp body 31 to support the sunroof frame body 5 and rotate to the welding position. Meanwhile, the clamp body 31 rotates to the disassembly position. Then, the sunroof frame body 5 is lifted. The bracket 13 supports the third motor 42 to drive the swing frame 41 from vertical to horizontal, which drives the limiting crossbeam 43 to rotate, so that the laser welding head 47 rotates to both ends of the welding position. Next, the limiting crossbeam 43 supports the second motor 45 to drive the positive and negative threaded screws 44 to rotate, which pushes the limiting slide 46 to drive the laser welding head 47 to move closer to each other, so that the laser welding head 47 welds the sunroof iron frame body 5 from both ends at the same time. At the same time, during this process, a second sunroof iron frame body 5 is inserted into another clamp body 31 to wait for welding.

[0033] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A welding machine for an automotive sunroof frame, comprising a support frame device (1), characterized in that: It also includes an execution device (4) for simultaneous welding on both sides, which is provided at one end of the frame device (1). A switching device (2) for supporting the rotating switching station is provided at the end of the frame device (1) away from the execution device (4). Two positioning fixtures (3) are symmetrically installed on the switching device (2). The switching device (2) includes a rotating platform (21), a first motor (22) is provided at the bottom of the rotating platform (21), the rotating platform (21) is rectangular, and two clamping components for pressing down the sunroof iron frame body (5) are symmetrically arranged at both ends; The positioning fixture (3) includes a fixture body (31) fixedly installed on the rotary table (21), and four positioning pins (32) are evenly distributed on the fixture body (31), with two pins forming a group; The actuator (4) includes a limiting crossbeam (43), in which a swing assembly for flipping and avoiding is provided in the middle. A positive and negative threaded screw (44) is provided inside the limiting crossbeam (43). A second motor (45) is provided at one end of the positive and negative threaded screw (44). Two limiting slides (46) are symmetrically installed on the positive and negative threaded screw (44). A laser welding head (47) is installed at the end of the limiting slide (46).

2. The automotive sunroof iron frame welding machine according to claim 1, characterized in that: The frame device (1) includes a base plate (11), and a support platform (12) and a vertical bracket (13) are respectively provided at both ends of the base plate (11).

3. The automotive sunroof iron frame welding machine according to claim 2, characterized in that: The output end of the first motor (22) passes through the support platform (12) and is connected to the rotary table (21) by a key.

4. The automotive sunroof iron frame welding machine according to claim 2, characterized in that: The swing assembly includes a swing frame (41) rotatably mounted on the top of the vertical support (13), and a third motor (42) is provided on one side of the swing frame (41).

5. The automotive sunroof iron frame welding machine according to claim 1, characterized in that: The clamping assembly includes two telescopic cylinders (23) arranged symmetrically. A fixed seat (24) is installed at the top of the telescopic cylinder (23). A support shaft (25) is rotatably installed between the two fixed seats (24). The support shaft (25) spans above the clamp body (31). A clamping block (26) is rotatably installed on the support shaft (25).

6. The automotive sunroof iron frame welding machine according to claim 5, characterized in that: The clamping block (26) has a triangular cross-sectional shape.

7. The automotive sunroof iron frame welding machine according to claim 1, characterized in that: The top of the positioning pin (32) is chamfered.

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