High-speed connector welding process combining electric resistance welding and laser welding

Abstract

The invention relates to the technical field of high-speed connector processing, in particular to a high-speed connector welding process combining electric resistance welding and laser welding, which comprises the following steps of: respectively adjusting working parameters of electric resistance welding and laser welding according to the actual characteristics of a position to be welded of a component and the actual characteristics of the component after electric resistance welding; and the electric resistance welding model and the laser welding model are trained through the welding spot characteristics after electric resistance welding and the welding spot characteristics after laser welding correspondingly, the precision can be continuously improved for welding adaptive working parameters of parts under different conditions along with sample lifting, and the yield can be increased.

Description

Technical Field

[0001] The present invention relates to the technical field of high-speed connector processing, and in particular to a high-speed connector welding process combining resistance welding and laser welding. Background Art

[0002] Currently, high-speed connectors are typically welded using two methods: resistance welding and laser welding. Each method has its own advantages and disadvantages. Resistance welding offers advantages such as low cost, strong adaptability, and a high degree of automation, but also has disadvantages such as uneven heat distribution, poor weld appearance, and the need for polishing. Laser welding offers advantages such as high weld quality, high precision, and zero pollution, but also disadvantages such as high cost, material limitations, and complex processes.

[0003] Laser welding is the preferred method for high-speed connectors, as its high precision and quality ensure that the connectors meet performance requirements. However, in actual applications, laser welding alone is clearly insufficient to meet the specific requirements of high-speed connectors. For example, laser welding alone can lead to problems such as loose welds.

[0004] Based on this, for example, the Chinese invention patent with patent number CN202310399551.9 discloses a multi-point resistance welding plus laser welding device and process for high-speed wire harness welding, which achieves the advantages of stable welding and high precision by combining resistance welding with laser welding.

[0005] However, this solution still has shortcomings: it has poor adaptability and cannot adaptively adjust specific working parameters according to the actual status of different welding components in actual operations, resulting in room for further optimization of its yield. Summary of the Invention

[0006] In view of the problems of the prior art, the present invention provides a high-speed connector welding process combining resistance welding and laser welding, which can adjust the working parameters of resistance welding and laser welding according to the specific conditions of the actual parts to be welded, thereby ensuring the welding yield.

[0007] In order to solve the above technical problems, the present invention adopts the following technical solutions: The present invention provides a high-speed connector welding process combining resistance welding and laser welding, comprising the following steps: S100. Acquire images of each component and analyze the images to obtain positions of each component to be welded; S200. Perform feature analysis on the welding position to be welded to estimate the state of the welding position; S300. The state of the position to be welded is input into the resistance welding model, and the resistance welding working parameters are calculated by the resistance welding model; S400 resistance welding of components under resistance welding working parameters; S500 acquires an image of the resistance-welded component and analyzes the resistance-welding spot characteristics from the image; S600. Input the resistance welding spot characteristics into the laser welding model, and calculate the laser welding working parameters via the laser welding model; S700. Laser welding is performed on the resistance-welded components under the laser welding working parameters; S800. Acquire an image of the laser-welded component to analyze the characteristics of the laser weld spot; S900. Use the resistance welding spot features and the laser welding spot features to train the resistance welding model and the laser welding model respectively.

[0008] Furthermore, step S200 specifically includes: S201. Perform pixel analysis or color analysis on the welding position to obtain the specific size of the welding position; S202 performs a grayscale analysis of pixels at the position to be welded, and determines whether there is a stain on the surface of the position to be welded, as well as the type and area of the stain based on the grayscale; S203. Combine steps S201 and S202 to calculate the flatness of the position to be welded.

[0009] Furthermore, step S300 specifically includes: S301. According to the type and area of the stain at the welding position, determine whether the component is qualified. If unqualified, remove the component; if qualified, adjust the welding current and welding time; S302. According to the specific size and flatness of the position to be welded, adjust the contact position of the resistor head and the component; S303. According to the flatness of the welding position, adjust the pressure applied by the resistor head to the component; The execution order of steps S301 to S303 is irrelevant.

[0010] Furthermore, step S301 specifically includes: combining the obtained stain type and area, determining the effect of the stain on welding, if the stain can be ablated at high temperature, then the component is determined to be qualified; if the stain cannot be ablated at high temperature, or the stain area is too large to affect the welding effect, or the stain type interferes with the signal transmission effect, then the component is determined to be unqualified; Step S301 also includes: Determine the welding temperature based on the component material and stain type, and adjust the welding current and welding time based on the welding temperature.

[0011] Furthermore, step S500 specifically includes: S501. Take a side photo of the resistance welding position of the component to obtain an image of the resistance welding position; S502. Analyze the resistance welding position image to obtain the distribution of welding points, the gaps between adjacent welding points, and the shapes of the welding points.

[0012] Furthermore, step S600 specifically includes: S601. Combine the stain type, area, distribution and the parameters obtained in step S502 to calculate whether the resistance welding position is qualified. If so, execute step S602; otherwise, execute steps S603-604. S602. Laser welding of components; S603. Determine the resistance welding position needs to be repaired, according to the stain type, area and distribution of the resistance welding position missing force, and then adjust the laser welding power density, defocus amount and welding speed according to the missing force; S604. Adjust the parameters of the secondary laser welding according to the repair welding parameters obtained in step S603.

[0013] Furthermore, in step S604, the repair welding parameters include component temperature rise value, spot shape and repair welding position.

[0014] Furthermore, a laser welding device is provided, which includes a laser generator, a first galvanometer, a second galvanometer, a third galvanometer, and a laser head. The laser light emitted by the laser generator is refracted by the first galvanometer, the second galvanometer, and the third galvanometer in sequence and then transmitted to the laser head, which collects the light and transmits it to the component. The first galvanometer, the second galvanometer, and the third galvanometer laser head are respectively provided with a rotation driver for driving the first galvanometer / the second galvanometer / the third galvanometer to rotate; the laser head is provided with a positioner for adjusting the spatial position and posture of the laser head. The laser head has a laser output end and a gas output end. The laser output end is used to output refracted laser light, and the gas output end is used to output protective gas.

[0015] Furthermore, the laser head has a focusing lens and a lifting driver, and the lifting driver is used to drive the focusing lens to rise and fall relative to the laser head; The gas output end is provided with a sensor, which is used to sense whether there is airflow at the gas output end, and the sensor is connected to the laser generator signal.

[0016] Furthermore, the resistance welding model and the laser welding model are both generated by finite element simulation software.

[0017] Beneficial effects of the present invention: The present invention adjusts the working parameters of resistance welding and laser welding according to the actual characteristics of the position to be welded of the component and the actual characteristics after resistance welding, and trains the resistance welding model and laser welding model respectively through the weld spot characteristics after resistance welding and the weld spot characteristics of laser welding. As the sample improves, the accuracy of the present invention in adapting the working parameters for welding of components under different conditions will continue to improve, which is conducive to improving the yield. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 Flowchart of the present invention.

[0019] Figure 2 Schematic diagram of the laser welding equipment of the present invention.

[0020] Figure 3 Schematic diagram of the interior of the laser head of the present invention.

[0021] Figure 4 FIG. 1 is a schematic diagram of a system for implementing the present invention.

[0022] Figure 5 It is a working scenario schematic diagram of the present invention.

[0023] Figure numerals: 1—laser generator, 2—first galvanometer, 3—second galvanometer, 4—third galvanometer, 5—laser head, 6—rotation driver, 7—positioner, 8—laser output end, 9—gas output end, 10—focusing lens, 11—lifting driver, 12—sensor, 20—first visual device, 30—resistance welding device, 40—second visual device, 50—laser welding device, 60—transmission device, 70—repair welding device. DETAILED DESCRIPTION

[0024] In order to facilitate understanding by those skilled in the art, the present invention will be further described below with reference to the embodiments and the accompanying drawings. The contents mentioned in the embodiments are not intended to limit the present invention. The present invention will be described in detail below with reference to the accompanying drawings.

[0025] Example 1 like Figure 1 As shown, this embodiment provides a high-speed connector welding process combining resistance welding and laser welding, including the following steps: S100. Acquire images of each component and analyze the images to obtain positions of each component to be welded; S200. Perform feature analysis on the welding position to be welded to estimate the state of the welding position; S300. The state of the position to be welded is input into the resistance welding model, and the resistance welding working parameters are calculated by the resistance welding model; S400 resistance welding of components under resistance welding working parameters; S500 acquires an image of the resistance-welded component and analyzes the resistance-welding spot characteristics from the image; S600. Input the resistance welding spot characteristics into the laser welding model, and calculate the laser welding working parameters via the laser welding model; S700. Laser welding is performed on the resistance-welded components under the laser welding working parameters; S800. Acquire an image of the laser-welded component to analyze the characteristics of the laser weld spot; S900. Use the resistance welding spot features and the laser welding spot features to train the resistance welding model and the laser welding model respectively.

[0026] It should be noted that the components described in this embodiment are actually components that need to be welded. For example, if both the terminal and the circuit board need to be welded, then both are components.

[0027] In actual use, the resistance welding model and the laser welding model are both generated by finite element simulation software, such as ANSYS, COMSOL or other commonly used finite element simulation software. The model generated by the finite element simulation software can be adjusted within the model when there are small changes in the position of the component to be welded, such as changes in the bending degree, the presence of stains that are difficult to remove, and other problems. In this way, the working parameters of the resistance welding are also adjusted accordingly; similarly, after the resistance welding is completed, the actual resistance welding spot characteristics will be input into the laser welding model, and the output working parameters will be adjusted by the laser welding model. By using this method of adjusting the working parameters according to the actual state of the component and the resistance welding results, each welding is performed based on the actual situation and state of the component. Compared with the traditional assembly line operation, this embodiment is equivalent to introducing a deep learning solution, which makes the welding "targeted" and achieves higher quality welding results.

[0028] After welding is completed, the model is trained through the data collected from each high-speed connector, so that the model can be continuously improved and optimized as the number of welding increases, achieving the effect of "the more it works, the smarter it becomes".

[0029] like Figure 5 As shown, the actual steps of this embodiment also include: taking the welding of terminals (referred to as conductors in the figure) as an example, after the terminals contact the plate, the front end of the terminals is first welded to the plate using resistance welding to initially position the terminals and the plate; then, the middle of the terminals is welded to the plate using laser welding; and the rear end of the terminals is connected to other components. Therefore, the present invention requires testing the front and middle of the terminals as the welding locations, and comprehensively determining whether there are any stains on both after cleaning.

[0030] In this embodiment, the components need to be cleaned before step S100 is performed. The cleaning method is conventional and will not be described in detail here. After cleaning, most of the stains and dust on the surface of the components can be effectively removed, thereby ensuring smooth welding.

[0031] In this embodiment, step S200 specifically includes: S201. Perform pixel analysis or color analysis on the welding position to obtain the specific size of the welding position; S202 performs a grayscale analysis of pixels at the position to be welded, and determines whether there is a stain on the surface of the position to be welded, as well as the type and area of the stain based on the grayscale; S203. Combine steps S201 and S202 to calculate the flatness of the position to be welded.

[0032] The welding position is photographed by a high-precision camera to obtain an image of the welding position. Based on pixel analysis or color analysis of the high-definition image, the specific size of the welding position can be known according to the distribution of pixels.

[0033] Grayscale analysis is performed on the color and distribution of the welding position. Generally speaking, the color of the metal surface caused by oxidation or impurities will be quite different from the color of the stain. Therefore, the distribution of stains at the welding position can be determined by grayscale analysis or color analysis. This analysis method requires manual adjustment of the system in the early stage.

[0034] When the weld site has a certain degree of curvature, its surface color distribution and shape differ from those of a completely flat reference sample. Therefore, by combining steps S201 and S202, a flatness analysis can be performed. Flatness is also a key factor in determining subsequent resistance welding parameters. For example, a weld site with low flatness requires greater force and higher temperature to force it to deform and improve its flatness before achieving the desired welding effect.

[0035] In this embodiment, step S300 specifically includes: S301. According to the type and area of the stain at the welding position, determine whether the component is qualified. If unqualified, remove the component; if qualified, adjust the welding current and welding time; S302. According to the specific size and flatness of the position to be welded, adjust the contact position of the resistor head and the component; S303. According to the flatness of the welding position, adjust the pressure applied by the resistor head to the component; The execution order of steps S301 to S303 is irrelevant.

[0036] During actual work, step S301 specifically includes: combining the obtained stain type and area, judging the impact of the stain on welding, if the stain can be ablated at high temperature, the component is judged to be qualified; if the stain cannot be ablated at high temperature, or the stain area is too large to affect the welding effect, or the stain type interferes with the signal transmission effect, the component is judged to be unqualified.

[0037] During the cleaning stage, there are stains that are difficult to clean and interfere with welding. For components with these stains, the present invention adopts the approach of directly determining whether the presence of the stains will have a significant adverse effect on welding and the operation of high-speed connectors. If the stain type and area are small, the present invention continues to perform subsequent processing on the component; if the stain type will cause adverse effects or the stain area is too large, the component itself is unqualified, and the present invention can directly remove it using a special mechanism.

[0038] After determining whether the part is qualified or not, the contact position between the resistor head and the component needs to be adjusted according to the specific size of the component to be welded and the actual flatness. The specific size mainly involves the tolerance during component production, which usually does not have a large impact. It is mainly the flatness that determines the position of the component that the resistor head will press. For example, if the front end of the component is more warped, the resistor head must be pressed closer to the front end and the pressure applied is small; if the middle part of the component is more warped, the resistor head is slightly further back and greater pressure is applied. The force of the resistor head pressing combined with the high temperature during heating forces the component to soften and deform due to heat, thereby improving the flatness.

[0039] The change in pressure will inevitably lead to a change in the welding effect, so corresponding parameters such as welding time and current need to be adjusted. This adjustment can be obtained by technical personnel in this field by training the resistance welding model. Different high-speed connectors will have different parameter requirements, which will not be elaborated here.

[0040] In this embodiment, step S301 further includes: determining the welding temperature according to the component material and the stain type, and adjusting the welding current and welding time in combination with the welding temperature.

[0041] In this embodiment, step S500 specifically includes: S501. Take a side photo of the resistance welding position of the component to obtain an image of the resistance welding position; S502. Analyze the resistance welding position image to obtain the distribution of welding points, the gaps between adjacent welding points, and the shapes of the welding points.

[0042] While resistance welding primarily serves to initially position components, its specific welding conditions also affect the overall weld strength after completion. When resistance welding performs well, laser welding time and power can be appropriately reduced. However, if components still warp after resistance welding, laser welding requires longer times and higher power to successfully weld the warped areas.

[0043] Therefore, after resistance welding, it is necessary to analyze the effect of resistance welding and the flatness of the parts, so it is best to take images from the side. It is preferred to obtain position images of resistance welding from two or three sides, and obtain the distribution of welding points, the gap between adjacent welding points, and the shape of each welding point from the image to infer the degree of laser welding required later.

[0044] In this embodiment, step S600 specifically includes: S601. Combine the stain type, area, distribution and the parameters obtained in step S502 to calculate whether the resistance welding position is qualified. If so, execute step S602; otherwise, execute steps S603-604. S602. Laser welding of components; S603. Determine the resistance welding position needs to be repaired, according to the stain type, area and distribution of the resistance welding position missing force, and then adjust the laser welding power density, defocus amount and welding speed according to the missing force; S604. Adjust the parameters of the secondary laser welding according to the repair welding parameters obtained in step S603.

[0045] After obtaining the welding image of resistance welding, if there is no stain on the surface of the component, the resistance welding position can be directly omitted; however, if there is stain, it is still necessary to make another judgment. If the result of resistance welding can compensate / offset the signal transmission impact caused by the stain, then no repair welding is required; and if the impact caused by the stain cannot be completely compensated / offset by the current resistance welding result, it is necessary to repair it by laser welding. By strengthening the welding position, the contact area between the components is increased, thereby ensuring the signal transmission effect and the strength of the welding position.

[0046] Since the repair welding is achieved by laser welding, the parameters of the repair welding and the secondary laser welding must be different. Therefore, parameter adjustment is required between the two laser weldings. Repair welding will inevitably lead to temperature increase and performance changes of the components. These parameters also affect the subsequent laser welding parameters.

[0047] Specifically, in step S604, the repair welding parameters include component temperature rise value, spot shape and repair welding position.

[0048] The quality and effect of high-speed connector welding performed by the present invention can be effectively guaranteed, and the connection between the welding parts of the high-speed connector can be sufficiently strong, and the signal transmission will not be affected due to the welding position being too large / too small, thereby achieving the desired effect.

[0049] Example 2 like Figure 2-4 As shown, this embodiment provides a system for performing the high-speed connector welding process described in Example 1. The system includes a transmission device 60. A first vision device 20, a resistance welding device 30, a second vision device 40, and a laser welding device 50 are sequentially arranged along the transmission direction of the transmission device 60. When the system is in operation, the main steps are as follows: a carrier carrying components is transported by the transmission device 60. The components within the carrier have been cleaned. The components are photographed by the first vision device 20. The resistance welding device 30 adjusts parameters such as the position of the resistor head based on the results of the photographic analysis, and then resistance welding is performed on the components. The second vision device 40 takes a side view of the components after resistance welding, and then the laser welding device 50 performs laser welding on the components.

[0050] In the above process, since some parts require repair welding, this embodiment also includes a repair welding device 70. After the second visual device 40 takes a picture, the transmission device 60 determines whether the parts need repair welding based on the structure analyzed in the image. Parts that require repair welding are transmitted by the transmission device 60 to the repair welding device 70, or are sorted by a robot and transferred to the repair welding device 70. Parts that do not require repair welding are normally transferred to the laser welding device 50. The structure of the repair welding device 70 is roughly the same as that of the laser welding device 50, except that since it involves two welding processes, repair welding and laser welding itself, its efficiency and cycle time are relatively low. By using the need for repair welding as a condition for sorting parts after resistance welding, combined with the fact that the proportion of parts that require repair welding is small, it is beneficial for the present invention to always maintain a high cycle time, and efficiency will not be greatly reduced due to repair welding.

[0051] In this embodiment, the laser welding equipment 50 includes a laser generator 1, a first galvanometer 2, a second galvanometer 3, a third galvanometer 4 and a laser head 5. The laser emitted by the laser generator 1 is refracted by the first galvanometer 2, the second galvanometer 3 and the third galvanometer 4 in sequence and then transmitted to the laser head 5, which is collected by the laser head 5 and transmitted to the component. The first galvanometer 2, the second galvanometer 3, and the third galvanometer 4 laser head 5 are respectively provided with a rotation driver 6, which is used to drive the first galvanometer 2 / the second galvanometer 3 / the third galvanometer 4 to rotate; the laser head 5 is provided with a positioner 7, which is used to adjust the spatial position and posture of the laser head 5.

[0052] In actual use, the rotary driver 6 is preferably composed of a high-precision servo motor and a reducer. By reducing the servo motor's driving force, high-precision positioning of the first galvanometer mirror 2, the second galvanometer mirror 3, and the third galvanometer mirror 4 can be achieved, thereby achieving the effect of fine-tuning the laser welding position. Similarly, the laser head 5 also requires posture and position adjustment, so a dedicated positioner 7 is required. Positioner 7 can be a conventional four-axis robot.

[0053] Specifically, the laser head 5 has a laser output port 8 and a gas output port 9. The laser output port 8 is used to output refracted laser light, and the gas output port 9 is used to output shielding gas. The gas output port 9 is the source of external shielding gas and is used to spray shielding gas (usually an inert gas) during laser welding to protect the components and prevent oxidation and performance changes caused by high-energy conditions.

[0054] Preferably, the laser head 5 includes a focusing lens 10 and a lift actuator 11. The lift actuator 11 is used to drive the focusing lens 10 up and down relative to the laser head 5. The lift actuator 11 is a conventional high-precision linear module. By adjusting the height of the focusing lens 10, the position of the energy incident on the component is controlled. Furthermore, if the optical path is altered by adjusting the first galvanometer mirror 2, the second galvanometer mirror 3, or the third galvanometer mirror 4, the desired focusing effect can be restored by adjusting the position of the focusing lens 10.

[0055] Preferably, the gas output end 9 is provided with a sensor 12 for sensing whether there is gas flow at the gas output end 9. The sensor 12 is connected to the laser generator 1 for signal communication. The provision of the sensor 12 ensures that the laser generator 1 operates only when gas is output from the gas output end 9, thereby protecting the safety of the components.

[0056] The above description is only a preferred embodiment of the present invention and does not limit the present invention in any form. Although the present invention is disclosed as a preferred embodiment as above, it is not used to limit the present invention. Any technician familiar with this profession can make some changes or modifications to equivalent embodiments of equivalent changes by using the technical content disclosed above without departing from the scope of the technical solution of the present invention. However, any simple modifications, equivalent changes and modifications made to the above embodiments according to the technology of the present invention are all within the scope of the technical solution of the present invention without departing from the content of the technical solution of the present invention.

Claims

1. A high-speed connector welding process combining resistance welding and laser welding, characterized in that: The following steps are involved: S100. Acquire images of each component and analyze the images to obtain positions of each component to be welded; S200. Perform feature analysis on the welding position to be welded to estimate the state of the welding position; S300. The state of the position to be welded is input into the resistance welding model, and the resistance welding working parameters are calculated by the resistance welding model; S400 resistance welding of components under resistance welding working parameters; S500 acquires an image of the resistance-welded component and analyzes the resistance-welding spot characteristics from the image; S600. Input the resistance welding spot characteristics into the laser welding model, and calculate the laser welding working parameters via the laser welding model; S700. Laser welding is performed on the resistance-welded components under the laser welding working parameters; S800. Acquire an image of the laser-welded component to analyze the characteristics of the laser weld spot; S900. Use the resistance welding spot features and the laser welding spot features to train the resistance welding model and the laser welding model respectively.

2. The high-speed connector welding process combining resistance welding and laser welding according to claim 1 is characterized in that: Step S200 specifically includes: S201. Perform pixel analysis or color analysis on the welding position to obtain the specific size of the welding position; S202 performs a grayscale analysis of pixels at the position to be welded, and determines whether there is a stain on the surface of the position to be welded, as well as the type and area of the stain based on the grayscale; S203. Combine steps S201 and S202 to calculate the flatness of the position to be welded.

3. The high-speed connector welding process combining resistance welding and laser welding according to claim 2 is characterized in that: Step S300 specifically includes: S301. According to the type and area of the stain at the welding position, determine whether the component is qualified. If unqualified, remove the component; if qualified, adjust the welding current and welding time; S302. According to the specific size and flatness of the position to be welded, adjust the contact position of the resistor head and the component; S303. According to the flatness of the welding position, adjust the pressure applied by the resistor head to the component; The execution order of steps S301 to S303 is irrelevant.

4. The high-speed connector welding process combining resistance welding and laser welding according to claim 3 is characterized in that: Step S301 specifically includes: judging the effect of the stain on welding based on the obtained stain type and area. If the stain can be ablated at high temperature, the component is judged to be qualified; if the stain cannot be ablated at high temperature, or the stain area is too large to affect the welding effect, or the stain type interferes with signal transmission, the component is judged to be unqualified. Step S301 also includes: Determine the welding temperature based on the component material and stain type, and adjust the welding current and welding time based on the welding temperature.

5. The high-speed connector welding process combining resistance welding and laser welding according to claim 1, characterized in that: Step S500 specifically includes: S501. Take a side photo of the resistance welding position of the component to obtain an image of the resistance welding position; S502. Analyze the resistance welding position image to obtain the distribution of welding points, the gaps between adjacent welding points, and the shapes of the welding points.

6. The high-speed connector welding process combining resistance welding and laser welding according to claim 5, characterized in that: Step S600 specifically includes: S601. Combine the stain type, area, distribution and the parameters obtained in step S502 to calculate whether the resistance welding position is qualified. If so, execute step S602; otherwise, execute steps S603-604. S602. Laser welding of components; S603. Determine the resistance welding position needs to be repaired, according to the stain type, area and distribution of the resistance welding position missing force, and then adjust the laser welding power density, defocus amount and welding speed according to the missing force; S604. Adjust the parameters of the secondary laser welding according to the repair welding parameters obtained in step S603.

7. The high-speed connector welding process combining resistance welding and laser welding according to claim 6, characterized in that: In step S604, the repair welding parameters include component temperature rise value, spot shape and repair welding position.

8. The high-speed connector welding process combining resistance welding and laser welding according to claim 1 or 6, characterized in that: Provided is a laser welding device, comprising a laser generator, a first galvanometer, a second galvanometer, a third galvanometer, and a laser head. The laser light emitted by the laser generator is refracted sequentially by the first galvanometer, the second galvanometer, and the third galvanometer before being transmitted to the laser head, where it is collected and transmitted to the component. The first galvanometer, the second galvanometer, and the third galvanometer laser head are each provided with a rotation driver for driving the first galvanometer, the second galvanometer, and the third galvanometer to rotate. The laser head is equipped with a positioner, which is used to adjust the spatial position and posture of the laser head; The laser head has a laser output end and a gas output end. The laser output end is used to output refracted laser light, and the gas output end is used to output protective gas.

9. The high-speed connector welding process combining resistance welding and laser welding according to claim 8, characterized in that: The laser head has a focusing lens and a lifting driver, and the lifting driver is used to drive the focusing lens to rise and fall relative to the laser head; The gas output end is provided with a sensor, which is used to sense whether there is airflow at the gas output end, and the sensor is connected to the laser generator signal.

10. The high-speed connector welding process combining resistance welding and laser welding according to claim 1, characterized in that: The resistance welding model and the laser welding model are both generated by finite element simulation software.

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