Laser welding machine convenient to adjust

Abstract

The laser welding machine convenient to adjust comprises an installation frame and a welding head body, the interior of the installation frame is rotationally connected with a rotating block, the side face of the rotating block is provided with a rotation driving assembly, and the other end of the rotation driving assembly is arranged in the installation frame; and a fixed seat is arranged at the other end of the rotating block, and a rotating shaft is rotationally connected to the fixed seat. The rotary driving motor drives the rotary driving gear and the rotary gear to drive the rotary block to horizontally rotate in the mounting frame, so that the welding head body can be quickly and accurately positioned at any angle in the horizontal plane, complicated manual operation is not needed, a complicated gear transmission chain is driven by the angle driving motor, and the welding head body can be quickly and accurately positioned. And finally, the worm wheel rigidly connected with the welding head body is driven, fine adjustment of the pitching angle of the welding head body is achieved, manual fine adjustment is replaced by motor driving, and the precision and speed are remarkably improved.

Description

Technical Field

[0001] This utility model relates to the field of welding machine technology, and in particular to a laser welding machine that is easy to adjust. Background Technology

[0002] Welding technology is an indispensable key process in modern manufacturing, widely used in many fields such as automobiles, aerospace, electronics, and medical devices. While traditional welding methods such as electric arc welding and gas shielded welding are mature, they often suffer from drawbacks such as large heat-affected zones, severe deformation, and limited precision. Laser welding technology, with its significant advantages of high energy density, low heat input, fast welding speed, minimal deformation, and high precision, plays an increasingly important role in high-precision, miniaturized, and automated welding scenarios, becoming a crucial tool in advanced manufacturing.

[0003] However, existing laser welding machines generally have significant drawbacks in terms of adjustment flexibility. On the one hand, the position adjustment of the welding head usually relies on complex mechanical slides or manual knobs, which is cumbersome, time-consuming, and difficult to achieve precise positioning, especially when frequent workpiece changes or welding path adjustments are required, resulting in low efficiency.

[0004] Therefore, how to provide an easily adjustable laser welding machine is a problem that urgently needs to be solved by those skilled in the art. Utility Model Content

[0005] One objective of this invention is to provide an easily adjustable laser welding machine, which solves the problems mentioned in the background section.

[0006] An easily adjustable laser welding machine according to an embodiment of the present invention includes a mounting frame and a welding head body. A rotating block is rotatably connected inside the mounting frame, and a rotation drive assembly is provided on the side of the rotating block. The other end of the rotation drive assembly is located inside the mounting frame. A fixed seat is provided at the other end of the rotating block, and a rotating shaft is rotatably connected to the fixed seat. A rotating frame is provided on the surface of the rotating shaft, and one end of the rotating frame is fixedly connected to the surface of the welding head body. An angle adjustment assembly is also provided on the surface of the rotating block, and the angle adjustment assembly includes a residual gear, which is fixedly sleeved on the surface of the rotating shaft.

[0007] The rotary drive assembly includes a rotary drive motor, a rotary drive gear, and a rotary gear. The rotary drive motor is fixedly connected inside the mounting frame by a fixing rod, the drive gear is fixedly connected to the output shaft end of the rotary drive motor, and the rotary gear is fixedly sleeved on the surface of the rotating block.

[0008] The rotating block has a protrusion on the side near the welding head body. The angle adjustment assembly also includes an angle drive motor, an angle drive gear, an angle transmission gear set, a double-headed bevel gear set, a bevel transmission gear, a worm, and a support rod. The support rod is fixedly connected to the side of the protrusion, the worm is rotatably connected to the support rod, the bevel transmission gear is fixedly connected to one end of the worm, the double-headed bevel gear set is rotatably connected to the side of the support rod through a connecting frame, the double-headed bevel gear set meshes with the bevel transmission gear, and the other end of the double-headed bevel gear set meshes with the angle transmission gear set. The angle transmission gear set is rotatably sleeved on the side of the protrusion through a first bearing. The angle drive motor is fixedly connected to the inner wall of the mounting frame, the angle drive gear is fixedly connected to the output shaft end of the angle drive motor, and the angle drive gear meshes with the angle transmission gear set.

[0009] The angle transmission gear set includes a bevel gear component and an annular tooth groove. The annular tooth groove is formed on the side of the bevel gear component and meshes with the angle drive gear. The bevel gear component meshes with one end of the double-headed bevel gear set.

[0010] The double-headed bevel gear set includes two linked bevel gears, with a fixed shaft between them. The fixed shaft is rotatably connected to the side of the support rod via a connecting frame. The two linked bevel gears mesh with a bevel gear component and a bevel transmission gear, respectively.

[0011] The residual gear is a worm gear, and the worm and the worm gear mesh with each other.

[0012] The rotational resistance of the fixed shaft is greater than the rotational resistance of the rotor when the motor body is not started.

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

[0014] By using a rotary drive motor to drive a rotary drive gear and a rotary gear, the rotating block is driven to rotate horizontally within the mounting frame, enabling rapid and precise positioning of the welding head body at any angle in the horizontal plane without the need for complex manual operation. The angle drive motor drives a complex gear transmission chain, which ultimately drives a worm gear rigidly connected to the welding head body, enabling fine adjustment of the pitch angle of the welding head body. The motor drive replaces manual fine-tuning, significantly improving accuracy and speed.

[0015] The core angle adjustment adopts a worm gear driven residual gear structure. The inherent self-locking characteristics of the worm gear ensure that after the welding head body is adjusted to the correct position, its pitch angle can be firmly locked even if it is subjected to external vibration or gravity, and will not cause accidental displacement, thus ensuring the stability of the welding process.

[0016] "The rotational resistance of the fixed shaft is greater than the rotational resistance of the rotor when the motor body is not started." This design further enhances the static friction of the fixed shaft in the double-headed bevel gear set, effectively preventing the worm gear from slightly reversing or loosening in the non-drive state, and greatly improving the reliability and anti-interference ability of the angle locking state. Attached Figure Description

[0017] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0018] Figure 1 This is a cross-sectional structural diagram of the position of the angle adjustment component in a laser welding machine that is easy to adjust, as proposed in this utility model.

[0019] Figure 2 This invention presents a schematic diagram of the connection state structure of the angle transmission gear group in an angle adjustment assembly for a laser welding machine that is easy to adjust.

[0020] Figure 3 This is a schematic diagram of the cross-sectional structure of the rotating shaft position in a laser welding machine that is easy to adjust, as proposed in this utility model.

[0021] The attached diagram shows: 1. Mounting frame; 2. Welding head body; 3. Rotating block; 4. Rotary drive assembly; 5. Fixed base; 6. Rotating shaft; 7. Rotating frame; 8. Angle adjustment assembly; 9. Residual gear; 10. Rotary drive motor; 11. Rotary drive gear; 12. Rotary gear; 13. Angle drive motor; 14. Angle drive gear; 15. Angle transmission gear set; 16. Double-headed bevel gear set; 17. Bevel transmission gear; 18. Worm gear; 19. Support rod. Detailed Implementation

[0022] The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, illustrating only the basic structure of the present invention, and therefore only show the components relevant to the present invention.

[0023] refer to Figure 1-3 In this embodiment, the assembly includes a mounting frame 1 and a welding head body 2. A rotating block 3 is rotatably connected inside the mounting frame 1. A rotating drive assembly 4 is provided on the side of the rotating block 3. The rotating drive assembly 4 includes a rotating drive motor 10, a rotating drive gear 11, and a rotating gear 12. The rotating drive motor 10 is fixedly connected inside the mounting frame 1 by a fixing rod. The drive gear is fixedly connected to the output shaft end of the rotating drive motor 10. The rotating gear 12 is fixedly sleeved on the surface of the rotating block 3.

[0024] The other end of the rotary drive assembly 4 is located inside the mounting frame 1, and the other end of the rotating block 3 is provided with a fixed seat 5. A rotating shaft 6 is rotatably connected to the fixed seat 5, and a rotating frame 7 is provided on the surface of the rotating shaft 6. One end of the rotating frame 7 is fixedly connected to the surface of the welding head body 2.

[0025] The surface of the rotating block 3 is also provided with an angle adjustment component 8, which includes a residual gear 9, which is a worm gear. The residual gear 9 is fixedly sleeved on the surface of the rotating shaft 6. A protrusion is provided on the side of the rotating block 3 near the welding head body 2. The angle adjustment component 8 also includes an angle drive motor 13, an angle drive gear 14, an angle transmission gear set 15, a double-headed bevel gear set 16, a bevel transmission gear 17, a worm 18, and a support rod 19. The support rod 19 is fixedly connected to the side of the protrusion, and the worm 18 is rotatably connected to the support rod 19. The worm 18 meshes with the worm gear. A bevel gear 17 is fixedly connected to one end of a worm gear 18. A double-headed bevel gear set 16 is rotatably connected to the side of a support rod 19 via a connecting frame. The double-headed bevel gear set 16 meshes with the bevel gear 17. The other end of the double-headed bevel gear set 16 meshes with an angle transmission gear set 15. The angle transmission gear set 15 is rotatably sleeved on the side of a protrusion via a first bearing. An angle drive motor 13 is fixedly connected to the inner wall of the mounting frame 1. An angle drive gear 14 is fixedly connected to the output shaft end of the angle drive motor 13. The angle drive gear 14 meshes with the angle transmission gear set 15.

[0026] refer to Figure 1-3 In this embodiment, the angle transmission gear set 15 includes a bevel gear component and an annular tooth groove. The annular tooth groove is formed on the side of the bevel gear component and meshes with the angle drive gear 14. The bevel gear component meshes with one end of the double-headed bevel gear set 16. The double-headed bevel gear set 16 includes two linked bevel gears. A fixed shaft is provided between the two linked bevel gears. The fixed shaft is rotatably connected to the side of the support rod 19 through a connecting frame. The two linked bevel gears mesh with the bevel gear component and the bevel transmission gear 17, respectively.

[0027] refer to Figure 1-3 In this embodiment, the rotational resistance of the fixed shaft is greater than the rotational resistance of the rotor when the motor body is not started.

[0028] The working principle of this utility model is as follows:

[0029] The rotary drive motor 10 starts, driving the rotary drive gear 11 to rotate. The rotation of the rotary drive gear 11 drives the rotary gear 12 to rotate. The rotation of the rotary gear 12 drives the rotating block 3 to rotate on the mounting frame 1. The rotation of the rotating block 3 drives the welding head body 2 to rotate via the fixed seat 5, the rotating shaft 6, and the rotating frame 7, thus achieving the purpose of adjusting the rotation angle of the welding head body 2. It should be noted that during the rotation process, due to the large rotational damping of the fixed shaft, the rotation of the rotating block 3 will drive the angle transmission gear set 15 to rotate. The rotation of the angle transmission gear set 15, in turn, drives the angle drive gear 14 to rotate. The rotation of the angle drive gear 14 drives the angle drive motor 13 to rotate, thereby avoiding the double-headed bevel gear set 16 from driving the worm gear 18 to rotate, which could cause the welding head body 2 to change its pitch angle during the rotation operation. After the rotation position of the welding head is adjusted, the angle drive motor 13 is operated. The angle drive motor 13 drives the angle drive gear 14 to rotate, thus achieving the purpose of adjusting the rotation angle of the welding head body 2. The rotation of the moving gear 14 drives the angle transmission gear set 15 to rotate on the surface of the protrusion through the first bearing. The rotation of the angle transmission gear set 15 drives the double-headed bevel gear set 16 to rotate. The double-headed bevel gear set 16 then drives the bevel transmission gear 17 to rotate. The rotation of the bevel transmission gear 17 drives the worm gear 18 to rotate. The rotation of the worm gear 18 drives the residual gear 9 to rotate. The rotation of the residual gear 9 drives the rotating shaft 6 to rotate on the fixed seat 5. The rotation of the rotating shaft 6 drives the rotating frame 7 to rotate. The rotation of the rotating frame 7 drives the welding head body 2 to rotate, thereby realizing the adjustment of the pitch angle of the welding head body 2. In summary, the purpose of automatically controlling the rotation angle and pitch angle adjustment of the welding head body 2 is achieved, which greatly improves the adjustment efficiency of the welding head body 2. It should be noted that both the rotary drive motor 10 and the angle drive motor 13 are controlled by an external controller. The controller is a commonly used device in existing electrical equipment, which will not be described in detail here. Both the rotary drive motor 10 and the angle drive motor 13 are powered by an external power source.

[0030] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. An easily adjustable laser welding machine, characterized in that, It includes a mounting frame (1) and a welding head body (2). The mounting frame (1) is rotatably connected to a rotating block (3). A rotating drive assembly (4) is provided on the side of the rotating block (3). The other end of the rotating drive assembly (4) is located inside the mounting frame (1). The other end of the rotating block (3) is provided with a fixed seat (5), and a rotating shaft (6) is rotatably connected to the fixed seat (5). A rotating frame (7) is provided on the surface of the rotating shaft (6), and one end of the rotating frame (7) is fixedly connected to the surface of the welding head body (2). The surface of the rotating block (3) is also provided with an angle adjustment component (8), which includes a residual gear (9) and is fixedly sleeved on the surface of the rotating shaft (6).

2. The easily adjustable laser welding machine according to claim 1, characterized in that, The rotary drive assembly (4) includes a rotary drive motor (10), a rotary drive gear (11), and a rotary gear (12). The rotary drive motor (10) is fixedly connected to the inside of the mounting frame (1) by a fixing rod. The drive gear is fixedly connected to the output shaft end of the rotary drive motor (10). The rotary gear (12) is fixedly sleeved on the surface of the rotating block (3).

3. The easily adjustable laser welding machine according to claim 2, characterized in that, The rotating block (3) has a protrusion on one side near the welding head body (2). The angle adjustment assembly (8) also includes an angle drive motor (13), an angle drive gear (14), an angle transmission gear set (15), a double-headed bevel gear set (16), a bevel transmission gear (17), a worm (18), and a support rod (19). The support rod (19) is fixedly connected to the side of the protrusion, the worm (18) is rotatably connected to the support rod (19), and the bevel transmission gear (17) is fixedly connected to one end of the worm (18). The double-headed bevel gear set (16) is connected to the welding head body (2) via... The connecting frame is rotatably connected to the side of the support rod (19). The double-headed bevel gear set (16) meshes with the bevel transmission gear (17). The other end of the double-headed bevel gear set (16) meshes with the angle transmission gear set (15). The angle transmission gear set (15) is rotatably sleeved on the side of the protrusion through the first bearing. The angle drive motor (13) is fixedly connected to the inner wall of the mounting frame (1). The angle drive gear (14) is fixedly connected to the output shaft end of the angle drive motor (13). The angle drive gear (14) meshes with the angle transmission gear set (15).

4. The easily adjustable laser welding machine according to claim 3, characterized in that, The angle transmission gear set (15) includes a bevel gear component and an annular tooth groove. The annular tooth groove is opened on the side of the bevel gear component. The annular tooth groove meshes with the angle drive gear (14). The bevel gear component meshes with one end of the double-headed bevel gear set (16).

5. The easily adjustable laser welding machine according to claim 4, characterized in that, The double-headed bevel gear set (16) includes two linked bevel gears. A fixed shaft is provided between the two linked bevel gears. The fixed shaft is rotatably connected to the side of the support rod (19) through a connecting frame. The two linked bevel gears mesh with the bevel gear component and the bevel transmission gear (17) respectively.

6. The easily adjustable laser welding machine according to claim 5, characterized in that, The residual gear (9) is a worm gear, and the worm (18) meshes with the worm gear.

7. The easily adjustable laser welding machine according to claim 6, characterized in that, The rotational resistance of the fixed shaft is greater than the rotational resistance of the rotor when the motor body is not started.

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