High-precision laser welding machine

Abstract

The utility model discloses a high-precision laser welding machine which comprises a main machine body, a moving device is installed on the upper portion of the main machine body, the moving device comprises an X-axis lead screw machine, the lower portion of the X-axis lead screw machine is fixedly connected with the main machine body, and a Y-axis lead screw machine is fixedly connected to the upper portion of a sliding seat of the X-axis lead screw machine. A Z-axis lead screw machine is fixedly connected to the upper portion of a sliding base of the Y-axis lead screw machine. A sliding connection structure of the rectangular sleeve and the rectangular supporting block is introduced into the fine adjustment device, the transverse installation frame and the transverse supporting rod are matched, and the fine adjustment function of the laser welding head is achieved. By means of the innovative design, the adjusting process is simplified, the adjusting precision is improved, and the stability and the repeated positioning precision of the laser welding head after adjustment are guaranteed. In this way, the device has the advantage that the device can be quickly recovered to a set accurate position even after long-time operation.

Description

Technical Field

[0001] The utility model belongs to the technical field of laser welding machines, and in particular relates to a high-precision laser welding machine. Background Art

[0002] With the rapid development of modern manufacturing technology, laser welding, as an efficient and precise connection process, has been increasingly widely used, especially in the fields of parts and maintenance of petrochemical equipment. Traditional welding methods such as arc welding and gas welding have been unable to meet the stringent requirements of high-precision products for welding quality due to their limitations such as large heat-affected zone, obvious deformation and high difficulty in precision control. Laser welding technology has gradually become one of the key technologies to improve the quality and efficiency of the manufacturing industry with its advantages of non-contact processing, concentrated energy, small heat-affected zone, fast welding speed and high weld quality.

[0003] Although laser welding technology has made significant progress, it still faces several challenges in practical applications, especially for the high-precision welding needs of petrochemical equipment.

[0004] When we delve into the specific implementation details of existing laser welding technology, we can easily find that although most systems use mechanical structures for three-dimensional positioning of the laser head, a common defect of these systems is the lack of an effective initial position calibration mechanism. Specifically, the traditional mechanical positioning method relies on preset mechanical stop points or limit switches to define the range of motion. However, this design is prone to slight displacement after long-term operation or under the influence of external forces, resulting in a deviation between the actual working position of the laser head and the theoretical set value. This deviation gradually accumulates during continuous operation and is ultimately reflected as an offset of the welding point, which seriously affects the welding quality and yield rate. This problem is particularly fatal in the manufacturing of products with high precision requirements, so we propose a high-precision laser welding machine. Utility Model Content

[0005] In view of the problems existing in the prior art, the purpose of the utility model is to provide a high-precision laser welding machine, which can achieve fine-tuning of the initial position and prevent welding deviation by being equipped with a fine-tuning device, an infrared transmitter head and a position calibration mark.

[0006] The utility model is implemented as follows: a high-precision laser welding machine comprises a main body, a moving device is installed on the upper part of the main body, the moving device comprises an X-axis screw machine, the lower part of the X-axis screw machine is fixedly connected to the main body, the upper part of the slide of the X-axis screw machine is fixedly connected to the Y-axis screw machine, the upper part of the slide of the Y-axis screw machine is fixedly connected to the Z-axis screw machine, the front part of the slide of the Z-axis screw machine is fixedly connected to a support arm, the front part of the support arm is installed with a fine-tuning device, the fine-tuning device comprises a first mounting block, a laser welding head is fixedly connected to the first mounting block, an infrared emitting head is fixedly connected to one side of the first mounting block, and a position calibration mark is fixedly connected to the main body.

[0007] Optionally, the fine-tuning device includes a rectangular sleeve, a rectangular support block is slidably connected inside the rectangular sleeve, a transverse mounting frame is fixedly connected to the front side of the rectangular support block, a transverse support rod is fixedly connected to the transverse mounting frame, and an opening for the transverse support rod to pass through is opened on the first mounting block.

[0008] Optionally, a reinforcement frame is welded to the front side of the rectangular sleeve, a connecting plate is welded to the right side of the reinforcement frame, and the connecting plate is connected to the support arm via bolts.

[0009] Optionally, a screw hole is provided at the upper portion of the reinforcement frame, a first clamping bolt is connected to the reinforcement frame, a screw hole is opened at the front side of the first mounting block, and a second clamping bolt is connected to the first mounting block.

[0010] Optionally, a scale line is provided on the upper portion of the rectangular support block, and an observation hole is provided on the rectangular sleeve.

[0011] Optionally, a display screen is connected to the upper portion of the main body via a bracket, and a heat dissipation hole is provided on the right side of the main body.

[0012] Optionally, a drawer and control buttons are provided on the front side of the main body.

[0013] Optionally, a workpiece fixing device is provided on the upper part of the main body, and the workpiece fixing device includes a base plate, a clamp bracket is welded on the base plate, a three-claw clamp is rotatably connected to the clamp bracket, a guide rail is fixedly connected to the upper part of the base plate, a slider is slidably connected to the guide rail, and a tail top is installed on the slider.

[0014] Compared with the prior art, the beneficial effects of the utility model are:

[0015] 1. The fine-tuning function of the laser welding head is realized by introducing a sliding connection structure of a rectangular sleeve and a rectangular support block in the fine-tuning device, in conjunction with a transverse mounting frame and a transverse support rod. This innovative design not only simplifies the adjustment process and improves the adjustment accuracy, but also ensures the stability and repeatability of the laser welding head after adjustment. In this way, even after a long period of operation, it can quickly return to the set precise position, thereby ensuring the consistency and high quality of each welding and reducing waste and rework caused by positioning errors.

[0016] 2. By setting scale lines on the rectangular support block and observation holes on the rectangular sleeve, intuitive visual calibration is achieved, which improves the convenience and accuracy of fine-tuning. The operator can read the scale intuitively and adjust the position of the laser welding head quickly and accurately without the need for additional measuring tools, which improves work efficiency. This design simplifies the operation process and reduces the difficulty of operation. Even non-professionals can make adjustments more easily, which enhances the user-friendliness of the equipment.

[0017] Other features and advantages of the present invention will become apparent from the following detailed description of exemplary embodiments of the present invention with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a first-view structural schematic diagram provided by the utility model;

[0019] Figure 2 It is a schematic diagram of the second viewing angle structure provided by the utility model;

[0020] Figure 3 It is a schematic diagram of the mobile device provided by the utility model;

[0021] Figure 4 It is an exploded schematic diagram of the fine-tuning device provided by the utility model;

[0022] Figure 5 This is a schematic diagram of the infrared transmitter provided by the utility model;

[0023] Figure 6 It is a schematic diagram of a workpiece fixing device provided by the utility model.

[0024] In the figure: 1. main body; 2. heat dissipation hole; 3. control button; 4. drawer; 5. workpiece fixing device; 51. three-claw clamp; 52. slider; 53. guide rail; 54. fixture bracket; 55. tail top; 56. bottom plate; 6. moving device; 61. X-axis screw machine; 62. Y-axis screw machine; 63. Z-axis screw machine; 64. support arm; 7. fine-tuning device; 71. opening; 72. first mounting block; 73. reinforcement frame; 74. transverse support rod; 75. rectangular support block; 76. transverse mounting frame; 77. rectangular sleeve; 78. connecting plate; 79. observation hole; 8. display screen; 9. position calibration mark; 10. laser welding head; 11. infrared transmitter. DETAILED DESCRIPTION

[0025] In order to further understand the content, features and effects of the utility model, the following embodiments are given as examples and described in detail with reference to the accompanying drawings.

[0026] like Figures 1 to 6 As shown, a high-precision laser welding machine provided by an embodiment of the utility model includes a main body 1, a moving device 6 is installed on the upper part of the main body 1, the moving device 6 includes an X-axis screw machine 61, the lower part of the X-axis screw machine 61 is fixedly connected to the main body 1, the upper part of the slide of the X-axis screw machine 61 is fixedly connected to the Y-axis screw machine 62, the upper part of the slide of the Y-axis screw machine 62 is fixedly connected to the Z-axis screw machine 63, the front part of the slide of the Z-axis screw machine 63 is fixedly connected to the support arm 64, the front part of the support arm 64 is installed with a fine-tuning device 7, the fine-tuning device 7 includes a first mounting block 72, a laser welding head 10 is fixedly connected to the first mounting block 72, an infrared emitting head 11 is fixedly connected to one side of the first mounting block 72, and a position calibration mark 9 is fixedly connected to the main body 1.

[0027] Through the integrated layout of the X-axis screw machine 61, the Y-axis screw machine 62 and the Z-axis screw machine 63, a precise three-dimensional coordinate moving platform is formed. The creativity of this design lies in that it allows the laser welding head 10 to achieve independent and fine movement adjustment in three dimensions, significantly improving the accessibility and positioning accuracy of the welding point. Compared with the traditional two-dimensional or single-axis moving device 6, the combined use of the three-dimensional screw machine effectively solves the welding problem of complex workpiece surfaces, especially in precision manufacturing and micro-structure welding, showing superior adaptability and accuracy.

[0028] The innovation of the fine-tuning device 7 is that it can make fine adjustments to the position of the laser welding head 10, compensating for the slight deviation after the large mobile device 6 is positioned. The first mounting block 72, as a carrier, not only fixes the laser welding head 10, but also integrates the infrared emitter 11 to realize the monitoring and adjustment of the initial position. This design reflects the need for precise control of the welding process. Through fine-tuning, even after long-term use, it can ensure that the laser welding head 10 remains in the ideal working position, reducing welding deviation and improving the consistency and quality of the finished welded product.

[0029] The position calibration mark 9 fixed on the main body 1 provides a reliable initial positioning reference for the laser welding machine, which is crucial for the accuracy of each welding operation. This design simplifies the calibration process of the equipment and ensures that the laser welding head 10 can quickly return to the preset standard position after each startup or replacement of the workpiece, thereby improving production efficiency and reducing the scrap rate caused by positioning errors.

[0030] The fine-tuning device 7 includes a rectangular sleeve 77, in which a rectangular support block 75 is slidably connected. A transverse mounting frame 76 is fixedly connected to the front side of the rectangular support block 75, and a transverse support rod 74 is fixedly connected to the transverse mounting frame 76. An opening portion 71 for the transverse support rod 74 to pass through is opened on the first mounting block 72.

[0031] A reinforcement frame 73 is welded to the front side of the rectangular sleeve 77 , and a connecting plate 78 is welded to the right side of the reinforcement frame 73 . The connecting plate 78 is connected to the support arm 64 by bolts.

[0032] A screw hole is provided at the upper portion of the reinforcement frame 73 , and a first clamping bolt is connected to the reinforcement frame 73 . A screw hole is provided at the front side of the first mounting block 72 , and a second clamping bolt is connected to the first mounting block 72 .

[0033] The upper portion of the rectangular support block 75 is provided with scale lines, and the rectangular sleeve 77 is provided with an observation hole 79 .

[0034] The upper part of the main body 1 is connected with a display screen 8 via a bracket, and a heat dissipation hole 2 is opened on the right side of the main body 1 .

[0035] A drawer 4 and a control button 3 are provided on the front side of the main body 1 .

[0036] A workpiece fixing device 5 is provided on the upper part of the main body 1, and the workpiece fixing device 5 includes a base plate 56, a clamp bracket 54 is welded on the base plate 56, a three-claw clamp 51 is rotatably connected to the clamp bracket 54, a guide rail 53 is fixedly connected to the upper part of the base plate 56, a slider 52 is slidably connected to the guide rail 53, and a tail top 55 is installed on the slider 52.

[0037] The sliding design of the rectangular sleeve 77 and the rectangular support block 75 provides a smooth and stable lateral adjustment mechanism for the laser welding head 10. This design breaks through the limitations of traditional fixed adjustment, allowing the operator to fine-tune the opening 71 of the first mounting block 72 through the lateral support rod 74 according to actual welding needs, significantly improving positioning accuracy and operational flexibility.

[0038] The addition of the reinforcement frame 73 and its structural connection with the connecting plate 78 stabilizes the entire fine-tuning device 7 through the first clamping bolt, ensuring that the rigidity and stability of the structure are maintained during frequent fine-tuning. At the same time, the second clamping bolt on the first mounting block 72 further strengthens the fastening of the adjustment part to prevent loosening under long-term use, thereby ensuring the accuracy and stability of long-term operation.

[0039] The scale lines provided on the rectangular support block 75 are combined with the observation hole 79 of the rectangular sleeve 77, providing the operator with intuitive visual feedback, facilitating quick and accurate reading and adjustment to the desired position, greatly improving the efficiency and accuracy of fine-tuning and reducing human errors.

[0040] The use of the three-jaw clamp 51 ensures the firm fixation of workpieces of different shapes and sizes, providing a solid foundation for high-precision welding operations.

[0041] When in use, the high-precision laser welding machine first relies on its unique design of the moving device 6, and through the precise coordination of the X, Y, and Z axis screws, realizes the free and high-precision movement of the laser welding head 10 in three-dimensional space. This system can quickly and accurately position the laser welding head 10 to the specified welding position of the workpiece according to the preset welding path, greatly improving the flexibility and accuracy of the welding operation.

[0042] In the fine-tuning stage, the operator adjusts the rectangular support block 75 in the rectangular sleeve 77, and makes fine adjustments to the opening 71 on the first mounting block 72 with the help of the transverse mounting frame 76 and the transverse supporting rod 74. This fine-tuning device 7 can not only realize the precise positioning of the laser welding head 10, but also the scale lines and observation holes 79 on it make the adjustment process intuitive and easy, and even small position changes can be easily grasped, ensuring that each welding can achieve extremely high positioning accuracy.

[0043] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A high-precision laser welding machine, comprising a main body (1), characterized in that: A moving device (6) is installed on the upper part of the main body (1), and the moving device (6) includes an X-axis screw machine (61). The lower part of the X-axis screw machine (61) is fixedly connected to the main body (1). The upper part of the slide seat of the X-axis screw machine (61) is fixedly connected to a Y-axis screw machine (62). The upper part of the slide seat of the Y-axis screw machine (62) is fixedly connected to a Z-axis screw machine (63). The front part of the slide seat of the Z-axis screw machine (63) is fixedly connected to a support arm (64). The front part of the support arm (64) is installed with a fine-tuning device (7). The fine-tuning device (7) includes a first mounting block (72). A laser welding head (10) is fixedly connected to the first mounting block (72). An infrared emitting head (11) is fixedly connected to one side of the first mounting block (72). A position calibration mark (9) is fixedly connected to the main body (1).

2. A high-precision laser welding machine according to claim 1, characterized in that: The fine-tuning device (7) comprises a rectangular sleeve (77), a rectangular support block (75) is slidably connected inside the rectangular sleeve (77), a transverse mounting frame (76) is fixedly connected to the front side of the rectangular support block (75), a transverse support rod (74) is fixedly connected to the transverse mounting frame (76), and an opening (71) for the transverse support rod (74) to pass through is provided on the first mounting block (72).

3. A high-precision laser welding machine according to claim 2, characterized in that: A reinforcement frame (73) is welded to the front side of the rectangular sleeve (77), a connecting plate (78) is welded to the right side of the reinforcement frame (73), and the connecting plate (78) is connected to the support arm (64) via bolts.

4. A high-precision laser welding machine according to claim 3, characterized in that: The upper part of the reinforcement frame (73) is provided with a screw hole, and the reinforcement frame (73) is connected to a first clamping bolt. The front side of the first mounting block (72) is provided with a screw hole, and the first mounting block (72) is connected to a second clamping bolt.

5. A high-precision laser welding machine according to claim 2, characterized in that: The upper part of the rectangular support block (75) is provided with scale lines, and the rectangular sleeve (77) is provided with an observation hole (79).

6. A high-precision laser welding machine according to claim 1, characterized in that: The upper part of the main body (1) is connected to a display screen (8) via a bracket, and a heat dissipation hole (2) is provided on the right side of the main body (1).

7. The high-precision laser welding machine according to claim 1, characterized in that: The front side of the main body (1) is provided with a drawer (4) and a control button (3).

8. The high-precision laser welding machine according to claim 1, characterized in that: A workpiece fixing device (5) is provided on the upper part of the main body (1), and the workpiece fixing device (5) comprises a base plate (56), a clamp bracket (54) is welded on the base plate (56), a three-claw clamp (51) is rotatably connected to the clamp bracket (54), a guide rail (53) is fixedly connected to the upper part of the base plate (56), a slider (52) is slidably connected to the guide rail (53), and a tail top (55) is installed on the slider (52).

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