Multi-axis fiber laser welding machine

Abstract

The utility model relates to laser welding equipment field, concretely relates to a kind of multi-axis linkage fiber laser welding machine including rack, and laser welding assembly and clamping assembly are equipped on the rack;Laser welding assembly includes moving module and first rotating motor, and first rotating motor output end is equipped with carrier one, and second rotating motor is connected on carrier one, and the output end of second rotating motor is equipped with carrier two, and carrier two is equipped with laser welding head.Clamping assembly includes frame body one and moving cylinder, and first clamping piece is connected on frame body one, and the output end of moving cylinder is equipped with the second clamping piece that is oppositely arranged with first clamping piece.Through the setting of moving module, first rotating motor and second rotating motor, the position of laser welding head is adjusted, and then laser welding head can be multi-axis rotation under the premise of moving by moving module, so that the position of laser welding head can be multidirectional adjusted relative to workpiece, and laser welding of the workpiece of relatively complex shape is facilitated.

Description

Technical Field

[0001] This utility model relates to the field of laser welding equipment, specifically to a multi-axis linkage fiber laser welding machine. Background Technology

[0002] Laser welding is a welding method that uses a focused laser beam to bombard the workpiece, generating heat to weld components. Due to the optical properties of lasers, such as refraction and focusing, laser welding is ideal for welding miniature parts and areas with poor accessibility. Laser welding also features low heat input, minimal weld deformation, and is unaffected by electromagnetic fields.

[0003] However, with the rapid development of high-end equipment manufacturing, new energy vehicles and precision electronics industries, the demand for welding of workpieces with complex shapes has increased significantly. The existing laser welding machine's laser welding head is usually only connected to a single rotary motor, so it can usually only perform single-axis rotation, which is not convenient for laser welding of workpieces with complex shapes. Utility Model Content

[0004] The technical solution adopted by this utility model to solve its technical problem is: to provide a multi-axis linkage fiber laser welding machine, comprising:

[0005] A frame, on which laser welding components and clamping components are provided;

[0006] The laser welding assembly includes a moving module and a first rotary motor connected to the output end of the moving module. The output end of the first rotary motor is provided with a carrier frame one, and a second rotary motor is connected to the carrier frame one. The output end of the second rotary motor is provided with a carrier frame two, and the carrier frame two is provided with a laser welding head. The moving module is used to drive the laser welding head to move, and the first rotary motor is used to cooperate with the second rotary motor to drive the laser welding head to rotate.

[0007] The clamping assembly includes a frame and a movable cylinder. A first clamping member is connected to the frame. The output end of the movable cylinder is provided with a second clamping member that is opposite to the first clamping member. The movable cylinder is used to drive the second clamping member to move to cooperate with the first clamping member to clamp the workpiece.

[0008] Furthermore, both the first clamping member and the second clamping member are provided with clamping grooves, which are used to place workpieces.

[0009] Furthermore, the first clamping member is connected to a third rotary motor, which is used to drive the first clamping member to rotate the workpiece.

[0010] Furthermore, the clamping assembly also includes at least one set of limiting modules, each of which includes two opposing limiting cylinders. The output end of each limiting cylinder is provided with a limiting block, and the two limiting cylinders are used to drive the two limiting blocks to cooperate in clamping the workpiece.

[0011] Furthermore, the limiting block is provided with meshing teeth.

[0012] Furthermore, it also includes an electric turntable, on which the clamping assembly is disposed, and the electric turntable is used to drive the clamping assembly to clamp the workpiece and rotate it to correspond with the laser welding assembly.

[0013] Furthermore, the frame is equipped with a sealed box, the laser welding assembly is located inside the sealed box, the electric turntable is equipped with a partition, the sealed box is equipped with a groove that matches the partition, the partition and the sealed box cooperate to form a sealed space, and the clamping assembly is provided in two sets, with the two sets of clamping assemblies located at both ends of the partition.

[0014] Furthermore, the mobile module includes a first lead screw drive mechanism, a second lead screw drive structure, and a third lead screw drive mechanism. The second lead screw drive mechanism is connected to the output end of the first lead screw drive mechanism, and the third lead screw drive mechanism is connected to the output end of the second lead screw drive mechanism. The output end of the third lead screw drive structure is provided with a carrier frame for supporting the first rotary motor.

[0015] The beneficial effects of this utility model are: by setting up a moving module, a first rotary motor and a second rotary motor, the position of the laser welding head is adjusted, thereby enabling the laser welding head to rotate in multiple axes while being moved by the moving module. This allows the position of the laser welding head to be adjusted in multiple directions relative to the workpiece, facilitating laser welding of workpieces with complex shapes. Attached Figure Description

[0016] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0017] In the picture: Figure 1 An overall structural diagram of a multi-axis linkage fiber laser welding machine provided by this utility model;

[0018] Figure 2 for Figure 1 The diagram shows the three-dimensional structure of the multi-axis linkage fiber laser welding machine hidden behind a sealed box.

[0019] Figure 3 for Figure 2 Enlarged view of point A in the middle;

[0020] Figure 4 for Figure 2 A three-dimensional structural diagram of the middle section;

[0021] Figure 5 for Figure 4 A cross-sectional view of the structure shown.

[0022] Explanation of reference numerals in the attached drawings: 100, Multi-axis linkage fiber laser welding machine; 10, Frame; 11, Sealed box; 111, Groove; 211, First lead screw transmission mechanism; 212, Second lead screw transmission structure; 213, Third lead screw transmission mechanism; 214, Carrier frame three; 22, First rotary motor; 23, Carrier frame one; 24, Second rotary motor; 25, Carrier frame two; 26, Laser welding head; 30, Clamping assembly; 31, Frame one; 32, Moving cylinder; 33, First clamping component; 331, Clamping groove; 34, Second clamping component; 35, Third rotary motor; 36, Slide rail; 37, Frame two; 40, Limiting cylinder; 41, Limiting block; 411, Meshing teeth; 50, Electric turntable; 51, Partition plate. Detailed Implementation

[0023] To make the technical problem to be solved, the technical solution, and the beneficial effects of this utility model clearer, the present utility model will now be described in detail with reference to the accompanying drawings. This drawing is a simplified schematic diagram, illustrating only the basic aspects of the present utility model, and therefore only shows the components relevant to the present utility model. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0024] Please refer to Figure 1 This utility model provides a multi-axis linkage fiber laser welding machine 100, including a frame 10, on which a laser welding assembly and a clamping assembly 30 are mounted. The laser welding assembly includes a moving module and a first rotary motor 22 connected to the output end of the moving module. The output end of the first rotary motor 22 is provided with a carrier 23, on which a second rotary motor 24 is connected. The output end of the second rotary motor 24 is provided with a carrier 25, on which a laser welding head 26 is mounted. The moving module is used to drive the laser welding head 26 to move, and the first rotary motor 22 is used to cooperate with the second rotary motor 24 to drive the laser welding head 26 to rotate.

[0025] Specifically, the first rotary motor 22 drives the laser welding head 26 to rotate about the length direction of the frame 10 as the central axis, and the second rotary motor 24 drives the laser welding head 26 to rotate about the width direction of the frame 10 as the central axis. The laser welding head 26 is connected to a laser for generating a laser beam; the laser is not labeled in the figure. In this embodiment, a continuous fiber laser is used, a commercially available component, specifically an industrial high-power picosecond quasi-continuous fiber laser 515nm (80W 30ps 30MHz), purchased from Xiaoxiao (Shanghai) Photonics Technology Co., Ltd.

[0026] Please refer to Figure 2 and Figure 3 The mobile module includes a first lead screw drive mechanism 211, a second lead screw drive structure 212, and a third lead screw drive mechanism 213. The second lead screw drive mechanism is connected to the output end of the first lead screw drive mechanism 211, and the third lead screw drive mechanism 213 is connected to the output end of the second lead screw drive mechanism. The output end of the third lead screw drive structure is provided with a carrier frame 214 for supporting the first rotary motor 22.

[0027] Specifically, the first lead screw drive mechanism 211, the second lead screw drive structure 212, and the third lead screw drive mechanism 213 are all existing linear motion modules, purchased from Chengdu Fuyu Technology Co., Ltd. as FSL45 integrated linear modules. The first lead screw drive mechanism 211 is used to drive the laser welding head 26 to move along the width direction of the frame 10, the second lead screw drive structure 212 is used to drive the laser welding head 26 to move along the length direction of the frame 10, and the third lead screw drive mechanism 213 is used to drive the laser welding head 26 to move along the height direction of the frame 10.

[0028] By setting up the moving module, the first rotary motor 22 and the second rotary motor 24, the position of the laser welding head 26 is adjusted, so that the laser welding head 26 can rotate in multiple axes while being moved by the moving module. This allows the position of the laser welding head 26 to be adjusted in multiple directions relative to the workpiece, which is convenient for laser welding of workpieces with complex shapes.

[0029] Please refer to Figure 4 and Figure 5 The clamping assembly 30 includes a frame 31 and a moving cylinder 32. A first clamping member 33 is connected to the frame 31. The output end of the moving cylinder 32 is provided with a second clamping member 34, which is disposed opposite to the first clamping member 33. The moving cylinder 32 is used to drive the second clamping member 34 to move to cooperate with the first clamping member 33 to clamp the workpiece. Specifically, both the first clamping member 33 and the second clamping member 34 are cylindrical structures and are coaxially arranged. The moving cylinder 32 is used to drive the second clamping member 34 to move along the axial direction of the first clamping member 33.

[0030] Specifically, frame 31 is provided with slide rail 36, and frame 37 for supporting the second clamping member 34 is slidably arranged on slide rail 36.

[0031] Please refer to Figure 4 and Figure 5 Both the first clamping member 33 and the second clamping member 34 are provided with clamping grooves 331 for placing workpieces. The first clamping member 33 is connected to a third rotary motor 35, which drives the first clamping member 33 to rotate the workpiece. The third rotary motor 35 allows the workpiece to rotate during welding, ensuring that the area to be welded on the workpiece aligns with the position of the laser welding head 26, thereby facilitating welding and improving welding efficiency.

[0032] Please refer to Figure 4 and Figure 5 The clamping assembly 30 further includes at least one set of limiting modules. Each limiting module includes two opposing limiting cylinders 40, with a limiting block 41 at the output end of each cylinder 40. The two limiting cylinders 40 drive the two limiting blocks 41 to cooperate in clamping the workpiece. Specifically, in this embodiment, two sets of limiting modules are provided, located in the clamping groove 331 of the first clamping member 33 and the clamping groove 331 of the second clamping member 34, respectively. The limiting cylinders 40 drive the limiting blocks 41 to clamp the workpiece along the radial direction of the first clamping member 33. By setting the limiting modules, the workpiece is further limited, making it less likely to move during welding.

[0033] Specifically, the limiting block 41 is provided with meshing teeth 411. The meshing teeth 411 increase the friction between the limiting block 41 and the workpiece, thereby improving the stability of the limiting block 41 in clamping the workpiece.

[0034] Please refer to Figure 2 The multi-axis linkage fiber laser welding machine 100 also includes an electric turntable 50, on which a clamping assembly 30 is mounted. The electric turntable 50 is used to drive the clamping assembly 30 to clamp the workpiece and rotate it to correspond with the laser welding assembly. Specifically, the electric turntable 50 is prior art, and only part of the structure of the electric turntable 50 is shown in the figure. The drive structure of the electric turntable 50 is not shown in the figure.

[0035] Please refer to Figure 1 and Figure 2 The frame 10 is equipped with a sealed box 11, and the laser welding assembly is located inside the sealed box 11. The electric turntable 50 is equipped with a partition 51, and the sealed box 11 is equipped with a groove 111 that matches the partition 51. The partition 51 and the sealed box 11 cooperate to form a sealed space. There are two sets of clamping assemblies 30, and the two sets of clamping assemblies 30 are located at both ends of the partition 51.

[0036] When welding workpieces, two workpieces are clamped by two sets of clamping assemblies 30 respectively. For laser welding of a single workpiece, the workpiece to be welded is rotated into a sealed space by an electric turntable 50. The sealed space is formed by the cooperation of the partition 51 on the electric turntable 50 and the sealed box 11 to ensure the airtightness during laser welding and to facilitate the introduction of protective gas.

Claims

1. A multi-axis linkage fiber laser welding machine, characterized in that, include: A frame, on which laser welding components and clamping components are provided; The laser welding assembly includes a moving module and a first rotary motor connected to the output end of the moving module. The output end of the first rotary motor is provided with a carrier frame one, and a second rotary motor is connected to the carrier frame one. The output end of the second rotary motor is provided with a carrier frame two, and the carrier frame two is provided with a laser welding head. The moving module is used to drive the laser welding head to move, and the first rotary motor is used to cooperate with the second rotary motor to drive the laser welding head to rotate. The clamping assembly includes a frame and a movable cylinder. A first clamping member is connected to the frame. The output end of the movable cylinder is provided with a second clamping member that is opposite to the first clamping member. The movable cylinder is used to drive the second clamping member to move to cooperate with the first clamping member to clamp the workpiece.

2. The multi-axis linkage fiber laser welding machine according to claim 1, characterized in that: Both the first clamping member and the second clamping member are provided with clamping grooves, which are used to place workpieces.

3. The multi-axis linkage fiber laser welding machine according to claim 1, characterized in that: The first clamping member is connected to a third rotary motor, which is used to drive the first clamping member to rotate the workpiece.

4. The multi-axis linkage fiber laser welding machine according to claim 1, characterized in that: The clamping assembly further includes at least one set of limiting modules, each of which includes two limiting cylinders arranged opposite each other. The output end of each limiting cylinder is provided with a limiting block, and the two limiting cylinders are used to drive the two limiting blocks to cooperate in clamping the workpiece.

5. The multi-axis linkage fiber laser welding machine according to claim 4, characterized in that: The limiting block is provided with meshing teeth.

6. The multi-axis linkage fiber laser welding machine according to claim 1, characterized in that: It also includes an electric turntable, on which the clamping assembly is mounted, and the electric turntable is used to drive the clamping assembly to clamp the workpiece and rotate it to correspond with the laser welding assembly.

7. The multi-axis linkage fiber laser welding machine according to claim 6, characterized in that: The frame is equipped with a sealed box, the laser welding assembly is located inside the sealed box, the electric turntable is equipped with a partition, the sealed box is equipped with a groove that matches the partition, the partition and the sealed box cooperate to form a sealed space, and the clamping assembly is provided in two sets, with the two sets of clamping assemblies located at both ends of the partition.

8. The multi-axis linkage fiber laser welding machine according to claim 1, characterized in that: The mobile module includes a first lead screw drive mechanism, a second lead screw drive mechanism, and a third lead screw drive mechanism. The second lead screw drive mechanism is connected to the output end of the first lead screw drive mechanism, and the third lead screw drive mechanism is connected to the output end of the second lead screw drive mechanism. The output end of the third lead screw drive mechanism is provided with a carrier frame for supporting the first rotary motor.

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