Laser welding equipment

Abstract

The laser welding equipment relates to the technical field of welding, and comprises a transverse frame and a protective cover, a sliding groove is formed in the transverse frame, a lead screw is rotatably installed in the sliding groove, the rear end of the lead screw is connected with a first motor, the outer side of the lead screw is in threaded connection with a sliding block, and the sliding block is connected with a second motor. A clamping assembly is arranged on one side of the top end of the longitudinal plate, a second motor is arranged on the other side of the top end of the longitudinal plate, the protective cover is arranged on the outer side of the clamping assembly, and the lower end of an electric telescopic rod is connected with a laser welding head. Through mutual cooperation of the first motor, the lead screw, the chain wheel, the chain, the sliding block and the longitudinal plate, the clamping assembly has a moving function and is used for fixing a to-be-welded part, the welding process occurs in the protective cover, the use safety of the device is improved, when the to-be-welded part is installed or detached, the clamping assembly can be moved to the outer side of the protective cover, and the welding efficiency is improved. And the difficulty of disassembling and assembling the to-be-welded part is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of welding, in particular to laser welding equipment. Background Art

[0002] Laser welding is an efficient and precise welding method that uses a high-energy-density laser beam as a heat source. Laser welding is one of the important aspects of the application of laser material processing technology. In the 1970s, it was mainly used for welding thin-walled materials and low-speed welding. The welding process is a heat conduction type, that is, the laser radiation heats the surface of the workpiece, and the surface heat diffuses to the inside through heat conduction. By controlling the width, energy, peak power and repetition frequency of the laser pulse, the workpiece is melted to form a specific molten pool. Due to its unique advantages, it has been successfully applied to the precision welding of micro and small parts.

[0003] The patent document with the prior art publication number CN212330006U provides a laser welding device. This laser welding device can be adjusted in real time according to the different needs of the models and specifications of the actual welding objects by manually pressing the positioning head to retract it into the inside of the sleeve rod, and moving it along the guide slide to the inside of the corresponding other positioning holes for clamping, so as to achieve real-time adjustment of the distance between the clamping seats, so that the clamping seats can be connected with the two ends of the welding object in real time, and according to the different needs of the thickness of the welding object, the height of the fastening plate can be adjusted in real time by manually twisting the adjusting rod to drive the threaded engagement on the inner side of the clamping seat, so that it can be fixed against the top surface of the welding object, so that the welding object has better stability during welding. However, the existing CN212330006U patent has some defects. First, the operation of adjusting the fastening plate, sleeve rod, extension rod and adjustment rod can only be performed inside the welding bracket. Under the limitation of the welding bracket, it is more difficult for the staff to disassemble and assemble the welding object. Secondly, the flipping of the welding object is completed inside the welding bracket. When the volume of the welding object is slightly larger, the flipping of the welding object will be limited and cannot be completed. Therefore, a laser welding device is urgently needed. Utility Model Content

[0004] Based on this, the purpose of the utility model is to provide a laser welding device to solve some defects of the existing CN212330006U patent. First, the operation of adjusting the fastening plate, the sleeve rod, the extension rod and the adjustment rod can only be performed inside the welding bracket. Under the limitation of the welding bracket, it is more difficult for the staff to disassemble and assemble the welding object. Secondly, the flipping of the welding object is completed inside the welding bracket. When the volume of the welding object is slightly larger, the flipping of the welding object will be limited and cannot be completed.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a laser welding device, comprising a horizontal frame and a protective cover, a slide groove is provided inside the horizontal frame, and a screw rod is rotatably installed inside the slide groove, a first motor is connected to the rear end of the screw rod, a slider is threadedly connected to the outer side of the screw rod, and a longitudinal plate is welded to the end of the slider away from the horizontal frame, a clamping assembly is provided on one side of the top end of the longitudinal plate, and the inner side of the clamping assembly clamps the workpiece to be welded, and a second motor is provided on the other side of the top end of the longitudinal plate;

[0006] The protective cover is arranged on the outside of the clamping assembly, and an electric telescopic rod is installed on the inner top of the protective cover, and the lower end of the electric telescopic rod is connected with a laser welding head.

[0007] Preferably, two screw rods are provided, and sprockets are installed on the outer sides of the rear ends of the two screw rods, and the outer sides of the sprockets are connected with chains.

[0008] Preferably, the rear end of the screw rod passes through the cross frame through a bearing and is connected to the output end of the second motor, and the slider forms a sliding structure with the cross frame through a sliding groove.

[0009] Preferably, the output shaft of the second motor passes through the longitudinal plate through a bearing and is connected to the clamping assembly, and the longitudinal plate is provided with two parallel to each other.

[0010] Preferably, a bottom support plate is fixed to the lower end of the cross frame, and a connecting plate is welded between the bottom support plates.

[0011] Preferably, a mounting plate is welded to the bottom end of the protective cover, and a threaded hole is provided inside the mounting plate, and a screw passes through the inside of the threaded hole.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] 1. The utility model enables the clamping assembly to have a moving function through the mutual cooperation of the first motor, the screw rod, the sprocket, the chain, the slider and the longitudinal plate. The clamping assembly is used to fix the workpiece to be welded. The welding process occurs inside the protective cover, which improves the safety of the device. When the workpiece to be welded is installed or disassembled, the clamping assembly can be moved to the outside of the protective cover, reducing the difficulty of disassembling the workpiece to be welded;

[0014] 2. The second motor of the utility model is used to drive the clamping assembly to drive the workpiece to be welded to flip, which is convenient for welding on both sides of the workpiece to be welded. When flipping the workpiece to be welded, the clamping assembly can be moved to the outside of the protective cover, without the restriction of the protective cover, which is convenient for effectively flipping the large-sized workpiece to be welded;

[0015] 3. In the utility model, the protective cover is assembled with the bottom support plate by means of a mounting plate and screws. This assembly method makes the protective cover detachable. When the electric telescopic rod or the laser welding head fails, the protective cover can be disassembled to facilitate the maintenance of the laser welding head or the electric telescopic rod. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0017] Figure 2 This is a front view structural schematic diagram of the utility model;

[0018] Figure 3 It is a side view structural schematic diagram of the utility model;

[0019] Figure 4 It is a schematic diagram of the top structure of the utility model.

[0020] In the figure: 1. horizontal frame; 2. slide groove; 3. screw rod; 4. first motor; 5. sprocket; 6. chain; 7. slider; 8. longitudinal plate; 9. clamping assembly; 10. workpiece to be welded; 11. second motor; 12. protective cover; 13. electric telescopic rod; 14. laser welding head; 15. bottom support plate; 16. mounting plate; 17. screws; 18. connecting plate. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. The embodiments described below with reference to the drawings are exemplary and are only used to explain the utility model, and cannot be understood as limiting the utility model.

[0022] The following describes an embodiment of the utility model based on its overall structure.

[0023] See also Figure 1-4A laser welding device includes a horizontal frame 1 and a protective cover 12. A slide groove 2 is opened inside the horizontal frame 1, and a screw rod 3 is rotatably installed inside the slide groove 2. The rear end of the screw rod 3 is connected to a first motor 4. Two screw rods 3 are provided, and sprocket wheels 5 are installed on the outer sides of the rear ends of the two screw rods 3. A chain 6 is connected to the outer side of the sprocket wheel 5. The first motor 4 drives the screw rod 3 to rotate. Under the mutual cooperation of the sprocket wheel 5 and the chain 6, the two screw rods 3 rotate synchronously, which is convenient for driving two sliders 7 to move at the same time. The outer side of the screw rod 3 is threadedly connected to the slider 7, and the end of the slider 7 away from the horizontal frame 1 is welded with a longitudinal plate 8. The rear end of the screw rod 3 passes through the horizontal frame 1 through a bearing and is connected to the output end of the second motor 11, and the slider 7 forms a sliding structure with the horizontal frame 1 through the slide groove 2. When When the screw rod 3 rotates, the slider 7 threadedly connected to the outer side of the screw rod 3 moves along the direction of the slide groove 2, thereby driving the longitudinal plate 8 to translate. A clamping assembly 9 is provided on one side of the top of the longitudinal plate 8, and the inner side of the clamping assembly 9 clamps the workpiece 10 to be welded. A second motor 11 is provided on the other side of the top of the longitudinal plate 8. The output shaft of the second motor 11 passes through the longitudinal plate 8 through a bearing and is connected to the clamping assembly 9. The longitudinal plate 8 is provided with two mutually parallel clamping assemblies 9 for fixing the workpiece 10 to be welded. The longitudinal plate 8 is used to support the clamping assembly 9 and the second motor 11, which provide a stable supporting force for the clamping assembly 9 without affecting the rotation of the clamping assembly 9. The second motor 11 is used to drive the clamping assembly 9 to drive the workpiece 10 to be welded to flip, so as to facilitate welding of both sides of the workpiece 10 to be welded.

[0024] The protective cover 12 is arranged on the outside of the clamping assembly 9, and an electric telescopic rod 13 is installed on the inner top of the protective cover 12, and the lower end of the electric telescopic rod 13 is connected to a laser welding head 14, and a bottom support plate 15 is fixed to the lower end of the cross frame 1, and a connecting plate 18 is welded between the bottom support plates 15, and the bottom support plates 15 and the bottom support plates 15 provide a stable supporting force for the device, and a mounting plate 16 is welded at the bottom end of the protective cover 12, and a threaded hole is opened inside the mounting plate 16, and a screw 17 passes through the inside of the threaded hole, and the mounting plate 16 is assembled on the outside of the bottom support plate 15 by the screw 17, so that the protective cover 12 covers the outside of the clamping assembly 9, and this assembly method makes the protective cover 12 detachable. When the electric telescopic rod 13 or the laser welding head 14 fails, the protective cover 12 can be disassembled to facilitate the maintenance of the laser welding head 14 or the electric telescopic rod 13.

[0025] Working principle: When in use, first remove the clamping assembly 9 from the protective cover 12, and fix the workpiece 10 to be welded by the clamping assembly 9. After the workpiece 10 to be welded is fixed, the first motor 4 drives the screw rod 3 to rotate forward. Under the cooperation of the sprocket 5 and the chain 6, the two screw rods 3 rotate forward synchronously, so that the two sliders 7 move to the rear end of the cross frame 1. The laser welding head 14 is controlled to descend by the electric telescopic rod 13. When the workpiece 10 to be welded passes under the laser welding head 14, the welding operation is completed. The welding process is carried out inside the protective cover 12, which improves the The device is safe to use. After the front welding of the workpiece 10 is completed, the first motor 4 is started to drive the screw rod 3 to reverse, so that the slider 7 moves to the front end of the cross frame 1 until the workpiece 10 is moved out of the protective cover 12. Then the second motor 11 is started. The second motor 11 is used to drive the clamping assembly 9 to drive the workpiece 10 to be welded to flip. The flipped workpiece 10 enters the protective cover 12 again and passes under the laser welding head 14 with the cooperation of the first motor 4, the screw rod 3 and the slider 7, thus completing the double-sided welding of the workpiece 10.

[0026] The device is controlled automatically by a controller. The control circuit of the controller can be realized by simple programming by technicians in this field, which belongs to the common knowledge in this field. Therefore, the control method and circuit connection of this device will not be explained in detail.

[0027] The contents not described in detail in this specification belong to the prior art known to professional and technical personnel in this field.

[0028] The directions or positional relationships indicated by terms such as "center", "longitudinal", "lateral", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" are based on the directions or positional relationships shown in the accompanying drawings. They are merely simplified descriptions for the convenience of describing the present invention, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as limitations on the protection content of the present invention.

[0029] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art may still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. A laser welding device, comprising a horizontal frame (1) and a protective cover (12), characterized in that: The cross frame (1) is provided with a slide groove (2) inside, and a screw rod (3) is rotatably installed inside the slide groove (2), the rear end of the screw rod (3) is connected to a first motor (4), the outer side of the screw rod (3) is threadedly connected to a slider (7), and a longitudinal plate (8) is welded to the end of the slider (7) away from the cross frame (1), a clamping assembly (9) is provided on one side of the top end of the longitudinal plate (8), and a workpiece (10) to be welded is clamped on the inner side of the clamping assembly (9), and a second motor (11) is provided on the other side of the top end of the longitudinal plate (8); The protective cover (12) is arranged on the outside of the clamping assembly (9), and an electric telescopic rod (13) is installed on the inner top of the protective cover (12), and the lower end of the electric telescopic rod (13) is connected to a laser welding head (14).

2. A laser welding device according to claim 1, characterized in that: Two screw rods (3) are provided, and a sprocket wheel (5) is installed on the outer side of the rear end of each of the two screw rods (3), and a chain (6) is connected to the outer side of the sprocket wheel (5).

3. A laser welding device according to claim 1, characterized in that: The rear end of the screw rod (3) passes through the cross frame (1) via a bearing and is connected to the output end of the second motor (11), and the slider (7) forms a sliding structure with the cross frame (1) via a sliding groove (2).

4. The laser welding equipment according to claim 1, characterized in that: The output shaft of the second motor (11) passes through the longitudinal plate (8) through a bearing and is connected to the clamping assembly (9), and the longitudinal plate (8) is provided with two mutually parallel ones.

5. The laser welding equipment according to claim 1, characterized in that: A bottom support plate (15) is fixed to the lower end of the cross frame (1), and a connecting plate (18) is welded between the bottom support plates (15).

6. The laser welding equipment according to claim 1, characterized in that: A mounting plate (16) is welded to the bottom end of the protective cover (12), and a threaded hole is provided inside the mounting plate (16), and a screw (17) passes through the inside of the threaded hole.

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