A high-speed connector welding process combining resistance welding and laser welding

Abstract

This invention relates to the field of high-speed connector processing technology, and in particular to a high-speed connector welding process that combines resistance welding and laser welding. Based on the actual characteristics of the component's welding position and its actual characteristics after resistance welding, the working parameters for resistance welding and laser welding are adjusted respectively. The resistance welding model and laser welding model are trained by comparing the characteristics of the weld points after resistance welding and those after laser welding. As the sample size increases, the accuracy of the welding adaptation working parameters for components under different conditions will continuously improve, which is beneficial to improving the yield.

Description

Technical Field

[0001] This invention relates to the field of high-speed connector processing technology, and in particular to a high-speed connector welding process that combines resistance welding and laser welding. Background Technology

[0002] Currently, the welding methods for high-speed connectors are typically resistance welding and laser welding. Each method has its advantages and disadvantages: resistance welding offers advantages such as low cost, high adaptability, and high automation, but also disadvantages such as uneven heat distribution and poor weld appearance requiring grinding; laser welding offers advantages such as high welding quality, high precision, and no pollution, but also disadvantages such as high cost, material limitations, and complex processes.

[0003] For high-speed connectors, laser welding is naturally preferred due to its high precision and quality, ensuring that the connectors meet performance requirements. However, in practical applications, laser welding alone is clearly insufficient to meet the specific requirements of high-speed connectors; for example, it can lead to issues such as weak welds.

[0004] Based on this, for example, 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 advantages such as stable welding and high precision by combining resistance welding and laser welding.

[0005] However, this solution still has shortcomings: its adaptability is poor, and it cannot adapt to the specific working parameters according to the actual state of different welding parts in actual operation, which means that its yield still has room for further optimization. Summary of the Invention

[0006] This invention addresses the problems of existing technologies by providing a high-speed connector welding process that combines resistance welding and laser welding. It can adjust the working parameters of resistance welding and laser welding according to the specific conditions of the actual component to be welded, thereby ensuring the welding yield.

[0007] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0008] This invention provides a high-speed connector welding process combining resistance welding and laser welding, comprising the following steps:

[0009] S100. Acquire images of each component and analyze the images to determine the welding positions of each component;

[0010] S200. Perform feature analysis on the position to be welded to estimate the state of the position to be welded;

[0011] S300. Input the state of the position to be welded into the resistance welding model, and calculate the working parameters of resistance welding through the resistance welding model;

[0012] S400. Resistance welding is performed on the components under resistance welding operating parameters;

[0013] S500. Acquire images of the resistance-welded components and analyze the characteristics of the resistance-welded weld points from the images;

[0014] S600. Input the resistance welding weld point characteristics into the laser welding model, and calculate the working parameters of laser welding through the laser welding model;

[0015] S700. Perform laser welding on resistance-welded components under laser welding operating parameters;

[0016] S800. Acquire images of laser-welded components to analyze the characteristics of laser weld joints;

[0017] S900. Use the characteristics of resistance welding weld points and laser welding weld points to train the resistance welding model and laser welding model, respectively.

[0018] Furthermore, step S200 specifically includes:

[0019] S201. Perform pixel analysis or color analysis on the position to be welded to obtain the specific dimensions of the position to be welded;

[0020] S202 performs grayscale analysis on the pixels of the position to be welded, and determines whether there are stains on the surface of the position to be welded, as well as the type and area of ​​the stains, based on the grayscale.

[0021] S203. Combining steps S201 and S202, calculate the flatness of the position to be welded.

[0022] Furthermore, step S300 specifically includes:

[0023] S301. Determine whether the component is qualified based on the type and area of ​​the contaminant at the welding location. If it is not qualified, discard the component; if it is qualified, adjust the welding current and welding time.

[0024] S302. Adjust the contact position between the resistor head and the component according to the specific dimensions and flatness of the location to be welded;

[0025] S303. Adjust the pressure applied to the component by the resistance head according to the flatness of the welding position;

[0026] The execution order of steps S301 to S303 is not important.

[0027] Furthermore, step S301 specifically includes: combining the obtained contaminant type and area to determine the impact of the contaminant on the welding; if the contaminant can be melted at high temperature, the component is judged to be qualified; if the contaminant cannot be melted at high temperature, or the contaminant area is too large and affects the welding effect, or the contaminant type interferes with the signal transmission effect, the component is judged to be unqualified.

[0028] Step S301 also includes:

[0029] Determine the welding temperature based on the component material and the type of contaminant, and adjust the welding current and welding time accordingly.

[0030] Furthermore, step S500 specifically includes:

[0031] S501. Take a side view of the resistance welding location of the component to obtain an image of the resistance welding location;

[0032] S502. Analyze the resistance welding position image to obtain the distribution of welding points, the gap between adjacent welding points, and the shape of the welding points.

[0033] Furthermore, step S600 specifically includes:

[0034] S601. Based on the type, area, and distribution of the stains, as well as the parameters obtained in step S502, calculate whether the resistance welding position is qualified. If so, proceed to step S602; otherwise, proceed to steps S603-604.

[0035] S602. Perform laser welding on the components;

[0036] S603. Determine if the resistance welding position needs to be repaired. Calculate the missing force at the resistance welding position based on the type, area, and distribution of the contaminant. Then adjust the power density, defocusing amount, and welding speed of the laser welding based on the missing force.

[0037] S604. Adjust the parameters of the secondary laser welding according to the welding parameters obtained in step S603.

[0038] Furthermore, in step S604, the welding parameters include the component temperature rise value, the spot shape, and the welding location.

[0039] Furthermore, a laser welding device is provided, comprising a laser generator, a first galvanometer, a second galvanometer, a third galvanometer, and a laser head. The laser emitted by the laser generator is refracted sequentially by the first, second, and third galvanometers before being transmitted to the laser head, where it is collected and conducted to the component. Each of the first, second, and third galvanometers and the laser head is equipped with a rotation driver, which drives the first / second / third galvanometers to rotate. The laser head is also equipped with an adjuster, which is used to adjust the spatial position and orientation of the laser head.

[0040] The laser head has a laser output end and a gas output end. The laser output end is used to output the refracted laser light, and the gas output end is used to output protective gas.

[0041] Furthermore, the laser head includes a focusing lens and a lifting driver, the lifting driver being used to drive the focusing lens to move up and down relative to the laser head;

[0042] A sensor is installed at the gas output end to detect whether there is airflow at the gas output end. The sensor is connected to the laser generator signal.

[0043] Furthermore, both the resistance welding model and the laser welding model were generated by finite element simulation software.

[0044] The beneficial effects of this invention are as follows: Based on the actual characteristics of the part to be welded and the actual characteristics after resistance welding, this invention adjusts the working parameters of resistance welding and laser welding respectively. It also trains the resistance welding model and the laser welding model by comparing the weld point characteristics after resistance welding and the weld point characteristics after laser welding. As the sample size increases, the accuracy of the welding adaptation working parameters of this invention for parts under different conditions will continuously improve, which is beneficial to improving the yield. Attached Figure Description

[0045] Figure 1 This is a flowchart of the present invention.

[0046] Figure 2 This is a schematic diagram of the laser welding equipment of the present invention.

[0047] Figure 3 This is a schematic diagram of the internal structure of the laser head of the present invention.

[0048] Figure 4 A schematic diagram of a system for implementing the present invention.

[0049] Figure 5 This is a schematic diagram of a working scenario of the present invention.

[0050] Reference numerals: 1—Laser generator, 2—First galvanometer, 3—Second galvanometer, 4—Third galvanometer, 5—Laser head, 6—Rotation driver, 7—Adjuster, 8—Laser output end, 9—Gas output end, 10—Focusing lens, 11—Lifting driver, 12—Sensor, 20—First vision device, 30—Resistance welding equipment, 40—Second vision device, 50—Laser welding equipment, 60—Transmission equipment, 70—Repair welding equipment. Detailed Implementation

[0051] To facilitate understanding by those skilled in the art, the present invention will be further described below with reference to embodiments and accompanying drawings. The content mentioned in the embodiments is not intended to limit the present invention. The present invention will be described in detail below with reference to the accompanying drawings.

[0052] Example 1

[0053] like Figure 1 As shown, this embodiment provides a high-speed connector welding process combining resistance welding and laser welding, including the following steps:

[0054] S100. Acquire images of each component and analyze the images to determine the welding positions of each component;

[0055] S200. Perform feature analysis on the position to be welded to estimate the state of the position to be welded;

[0056] S300. Input the state of the position to be welded into the resistance welding model, and calculate the working parameters of resistance welding through the resistance welding model;

[0057] S400. Resistance welding is performed on the components under resistance welding operating parameters;

[0058] S500. Acquire images of the resistance-welded components and analyze the characteristics of the resistance-welded weld points from the images;

[0059] S600. Input the resistance welding weld point characteristics into the laser welding model, and calculate the working parameters of laser welding through the laser welding model;

[0060] S700. Perform laser welding on resistance-welded components under laser welding operating parameters;

[0061] S800. Acquire images of laser-welded components to analyze the characteristics of laser weld joints;

[0062] S900. Use the characteristics of resistance welding weld points and laser welding weld points to train the resistance welding model and laser welding model, respectively.

[0063] It should be noted that the components described in this embodiment are actually components that need to be soldered. For example, if both the terminals and the circuit board need to be soldered, then both are components.

[0064] In practical use, both the resistance welding model and the laser welding model are 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 adjust these conditions within the model when there are minor changes at the welding location of the component, such as changes in bending degree or the presence of stubborn stains. This allows the resistance welding operating parameters to be adjusted accordingly. Similarly, after resistance welding is completed, the actual characteristics of the resistance weld point are input into the laser welding model, which then adjusts the output operating parameters. By using this method of adjusting operating parameters based on the component's condition and the resistance welding results, each welding operation is based on the actual situation and condition of the component. Compared to traditional assembly line operations, this embodiment is equivalent to introducing a deep learning solution, enabling targeted welding and achieving higher quality welding results.

[0065] After welding is completed, the model is trained using the data collected from each high-speed connector. The model is continuously improved and optimized as the number of welding operations increases, achieving the effect of "becoming smarter the more it works".

[0066] like Figure 5 As shown, the actual operation of this embodiment also includes: taking terminal (referred to as conductor in the figure) welding as an example, after the terminal contacts the board, the front end of the terminal is first welded and fixed to the board by resistance welding, so that the terminal and the board are initially positioned; then, the middle position of the terminal and the board is welded and fixed by laser welding; while the rear end of the terminal is connected to other components. Therefore, the present invention needs to detect the front end and the middle part of the terminal as the welding position, and comprehensively judge whether there are still stains on both after cleaning.

[0067] In this embodiment, the components need to be cleaned before step S100. The cleaning method is conventional and will not be described in detail here. After cleaning, most of the dirt and dust on the surface of the components can be effectively removed, thereby ensuring the smooth progress of welding.

[0068] In this embodiment, step S200 specifically includes:

[0069] S201. Perform pixel analysis or color analysis on the position to be welded to obtain the specific dimensions of the position to be welded;

[0070] S202 performs grayscale analysis on the pixels of the position to be welded, and determines whether there are stains on the surface of the position to be welded, as well as the type and area of ​​the stains, based on the grayscale.

[0071] S203. Combining steps S201 and S202, calculate the flatness of the position to be welded.

[0072] A high-precision camera is used to capture an image of the area to be welded. Based on pixel or color analysis of this high-definition image, the specific dimensions of the area to be welded can be determined according to the distribution of pixels.

[0073] Grayscale analysis, on the other hand, examines the color and distribution of the area to be welded. Generally speaking, the color of the metal surface caused by oxidation or impurities is quite different from the color of the stain. Therefore, grayscale analysis or color analysis can be used to determine the distribution of stains at the area to be welded. This analysis method requires manual adjustment of the system in the early stages.

[0074] When the area to be welded has a certain degree of bending, its surface color distribution and shape differ from those of a completely flat reference sample. Therefore, flatness analysis can be performed by combining steps S201 and S202. Flatness is also an important factor in determining the subsequent resistance welding parameters. For example, a welding area with low flatness requires greater force and higher temperature to force deformation and improve flatness before the desired welding effect can be achieved.

[0075] In this embodiment, step S300 specifically includes:

[0076] S301. Determine whether the component is qualified based on the type and area of ​​the contaminant at the welding location. If it is not qualified, discard the component; if it is qualified, adjust the welding current and welding time.

[0077] S302. Adjust the contact position between the resistor head and the component according to the specific dimensions and flatness of the location to be welded;

[0078] S303. Adjust the pressure applied to the component by the resistance head according to the flatness of the welding position;

[0079] The execution order of steps S301 to S303 is not important.

[0080] In actual operation, step S301 specifically includes: combining the obtained contaminant type and area to determine the impact of the contaminant on the welding. If the contaminant can be melted at high temperature, the component is judged to be qualified; if the contaminant cannot be melted at high temperature, or the contaminant area is too large and affects the welding effect, or the contaminant type interferes with the signal transmission effect, the component is judged to be unqualified.

[0081] During the cleaning stage, there are stains that are difficult to clean and interfere with the welding process. For components with these stains, the present invention directly determines whether the presence of the stains will have a significant adverse effect on the welding or the operation of the high-speed connector. If the stains are small and of a certain type, the present invention will not have an adverse effect, and the present invention will continue to process the component. If the type of stains will have an adverse effect or the area of ​​the stains is too large, the component itself is unqualified, and the present invention can directly remove it using a specialized mechanism.

[0082] After determining whether the component is qualified or not, the contact position between the resistor head and the component needs to be adjusted according to the specific dimensions and actual flatness of the part to be welded. The specific dimensions mainly involve the tolerances during component production, which usually have a small impact. The flatness mainly determines the position of the component that the resistor head should press. For example, if the front end of the component is more raised, the resistor head will inevitably be closer to the front end to press and apply less pressure; while if the middle of the component is more raised, the resistor head will be slightly further back and apply more pressure. The pressing force of the resistor head combined with the high temperature during heating forces the component to soften and deform due to heat, thereby improving the flatness.

[0083] The change in pressure will inevitably lead to a change in the welding effect. Therefore, it is necessary to adjust the welding time, current, and other parameters accordingly. This adjustment can be obtained by those skilled in the art through training resistance welding models. Different high-speed connectors will have different parameter requirements, which will not be elaborated here.

[0084] In this embodiment, step S301 further includes: determining the welding temperature based on the component material and the type of contaminant, and adjusting the welding current and welding time in conjunction with the welding temperature.

[0085] In this embodiment, step S500 specifically includes:

[0086] S501. Take a side view of the resistance welding location of the component to obtain an image of the resistance welding location;

[0087] S502. Analyze the resistance welding position image to obtain the distribution of welding points, the gap between adjacent welding points, and the shape of the welding points.

[0088] Although resistance welding mainly serves as the initial positioning between components, its specific welding state also affects the overall weld strength after the invention is completed. When the resistance welding effect is good, the laser welding time / power can be appropriately reduced; when the component still has warping after resistance welding, the laser welding time needs to be longer and the power needs to be higher to ensure that the warped area is also successfully welded.

[0089] Therefore, after resistance welding, it is necessary to analyze the effect of resistance welding and the flatness of the parts. Taking pictures from the side is the best approach, and it is preferable to obtain position images of the resistance welding from both sides or three sides. From the images, the distribution of welding points, the gap between adjacent welding points, and the shape of each welding point can be obtained to estimate the degree of laser welding required for subsequent welding.

[0090] In this embodiment, step S600 specifically includes:

[0091] S601. Based on the type, area, and distribution of the stains, as well as the parameters obtained in step S502, calculate whether the resistance welding position is qualified. If so, proceed to step S602; otherwise, proceed to steps S603-604.

[0092] S602. Perform laser welding on the components;

[0093] S603. Determine if the resistance welding position needs to be repaired. Calculate the missing force at the resistance welding position based on the type, area, and distribution of the contaminant. Then adjust the power density, defocusing amount, and welding speed of the laser welding based on the missing force.

[0094] S604. Adjust the parameters of the secondary laser welding according to the welding parameters obtained in step S603.

[0095] After acquiring the resistance welding image, if there are no contaminants on the surface of the component, the resistance welding position can be directly left unwelded. However, if contaminants are present, a further assessment is required. If the resistance welding result can compensate for / offset the signal transmission impact caused by the contaminants, then re-welding is not necessary. If the impact caused by the contaminants cannot be completely compensated for / offset by the current resistance welding result, then laser welding is required to re-weld the component. 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.

[0096] Since the repair welding is achieved through laser welding, the parameters of the repair welding and the second laser welding will inevitably be different. Therefore, parameter adjustments are required between the two laser welding operations. Repair welding will inevitably lead to an increase in the temperature and performance of the component, and these parameters will also affect the parameters of the subsequent laser welding.

[0097] Specifically, in step S604, the welding parameters include the component temperature rise value, the spot shape, and the welding position.

[0098] The high-speed connector welding performed by this invention can effectively guarantee the quality and effect of the welding, ensuring that the connection between the welded components of the high-speed connector is strong enough and that the signal transmission is not affected by the welding position being too large or too small, thus achieving the desired effect.

[0099] Example 2

[0100] like Figure 2-4 As shown, this embodiment provides a system for performing the high-speed connector welding process described in Embodiment 1. The system includes a transmission device 60, and along the transmission direction of the 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. The main steps of the system during operation are as follows: a carrier containing components is transported via the transmission device 60. The components within the carrier have been cleaned. The first vision device 20 takes pictures of the components. The resistance welding device 30 adjusts parameters such as the position of the resistance head based on the results of the image analysis, and then performs resistance welding on the components. The second vision device 40 takes side pictures of the components after resistance welding, and then the laser welding device 50 performs laser welding on the components.

[0101] In the above process, since some components require additional welding, this embodiment also includes a welding repair device 70. After the second vision device 40 takes a picture, the transmission device 60 determines whether the component needs additional welding based on the structure analyzed in the image. Components requiring additional welding are either transferred from the transmission device 60 to the welding repair device 70, or sorted and transferred to the welding repair device 70 by a robot. Components not requiring additional welding are transferred normally to the laser welding device 50. The structure of the welding repair device 70 is roughly the same as that of the laser welding device 50. However, because it involves two welding processes—additional welding and its own laser welding—its efficiency and cycle time are lower. By using the need for additional welding as a condition for sorting resistance-welded components, and considering that the proportion of components requiring additional welding is not large, this invention helps maintain a high cycle time, and the efficiency does not decrease excessively due to additional welding.

[0102] 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 transmitted to the laser head 5 after being refracted sequentially by the first galvanometer 2, the second galvanometer 3, and the third galvanometer 4. The laser head 5 collects and transmits the laser to the component. The first galvanometer 2, the second galvanometer 3, and the third galvanometer 4 are each equipped with a rotation driver 6. The rotation driver 6 is used to drive the first galvanometer 2 / second galvanometer 3 / third galvanometer 4 to rotate. The laser head 5 is equipped with an adjuster 7. The adjuster 7 is used to adjust the spatial position and attitude of the laser head 5.

[0103] In practical use, the rotary driver 6 is preferably composed of a high-precision servo motor and a reducer. By reducing the speed, the driving force of the servo motor is reduced, thereby achieving high-precision positioning of the first galvanometer 2, the second galvanometer 3, and the third galvanometer 4, achieving the effect of fine-tuning the laser welding position. Similarly, the laser head 5 also needs to be adjusted in attitude and position, so a special positioner 7 is required. The positioner 7 can be a conventional four-axis robot.

[0104] Specifically, the laser head 5 has a laser output end 8 and a gas output end 9. The laser output end 8 is used to output the refracted laser light, and the gas output end 9 is used to output the protective gas. The gas output end 9 is an external source of protective gas, used to spray protective gas (usually an inert gas) during laser welding to protect the components and prevent them from oxidizing and changing their performance under high-energy conditions.

[0105] Preferably, the laser head 5 includes a focusing lens 10 and a lifting driver 11, which drives the focusing lens 10 to move up and down relative to the laser head 5. The lifting driver 11 is a conventional high-precision linear module, which controls the energy level of the laser beam on the component by adjusting the height of the focusing lens 10. Furthermore, if the optical path changes due to adjustments to the first galvanometer 2, the second galvanometer 3, or the third galvanometer 4, the desired focusing effect can be re-achieved by adjusting the position of the focusing lens 10.

[0106] Preferably, a sensor 12 is provided at the gas output terminal 9. The sensor 12 is used to sense whether there is airflow at the gas output terminal 9, and the sensor 12 is connected to the laser generator 1 for signal transmission. By setting the sensor 12, it is ensured that the laser generator 1 only operates when there is gas output at the gas output terminal 9, thus protecting the safety of the components.

[0107] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention in any way. Although the present invention has been disclosed above with reference to preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art can make some changes or modifications to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present invention. Any simple modifications, equivalent changes, and modifications made to the above embodiments based on the present invention without departing from the scope of the present invention are within the scope of the present invention.

Claims

1. A high-speed connector welding process combining resistance welding and laser welding, characterized in that, Includes the following steps: S100. Acquire images of each component and analyze the images to determine the welding positions of each component; S200. Perform feature analysis on the position to be welded to estimate the state of the position to be welded; S300. Input the state of the position to be welded into the resistance welding model, and calculate the working parameters of resistance welding through the resistance welding model; S400. Resistance welding is performed on the components under resistance welding operating parameters; S500. Acquire images of the resistance-welded components and analyze the characteristics of the resistance-welded weld points from the images; S600. Input the resistance welding weld point characteristics into the laser welding model, and calculate the working parameters of laser welding through the laser welding model; S700. Perform laser welding on resistance-welded components under laser welding operating parameters; S800. Acquire images of laser-welded components to analyze the characteristics of laser weld joints; S900. Use the characteristics of resistance welding weld points and laser welding weld points to train the resistance welding model and the laser welding model, respectively. Step S200 specifically includes: S201. Perform pixel analysis or color analysis on the position to be welded to obtain the specific dimensions of the position to be welded; S202 performs grayscale analysis on the pixels of the position to be welded, and determines whether there are stains on the surface of the position to be welded, as well as the type and area of ​​the stains, based on the grayscale. S203. Combining steps S201 and S202, calculate the flatness of the position to be welded; Step S300 specifically includes: S301. Determine whether the component is qualified based on the type and area of ​​the contaminant at the welding location. If it is not qualified, discard the component; if it is qualified, adjust the welding current and welding time. S302. Adjust the contact position between the resistor head and the component according to the specific dimensions and flatness of the location to be welded; S303. Adjust the pressure applied to the component by the resistance head according to the flatness of the welding position; The execution order of steps S301 to S303 is not important; Step S301 specifically includes: combining the obtained contaminant type and area to determine the impact of the contaminant on the welding. If the contaminant can be melted at high temperature, the component is judged to be qualified; if the contaminant cannot be melted at high temperature, or the contaminant area is too large and affects the welding effect, or the contaminant type interferes with the signal transmission effect, the component is judged to be unqualified. Step S301 also includes: Determine the welding temperature based on the component material and the type of contaminant, and adjust the welding current and welding time accordingly. Step S500 specifically includes: S501. Take a side view of the resistance welding location of the component to obtain an image of the resistance welding location; S502. Analyze the resistance welding position image to obtain the distribution of welding points, the gap between adjacent welding points, and the shape of the welding points.

2. The high-speed connector welding process combining resistance welding and laser welding according to claim 1, characterized in that, Step S600 specifically includes: S601. Based on the type, area, and distribution of the stains, as well as the parameters obtained in step S502, calculate whether the resistance welding position is qualified. If so, proceed to step S602; otherwise, proceed to steps S603-604. S602. Perform laser welding on the components; S603. Determine the resistance welding location that needs to be repaired, calculate the missing force of the resistance welding location based on the type, area and distribution of the contaminant, and then adjust the power density, defocusing amount and welding speed of the laser welding according to the missing force. S604. Adjust the parameters of the secondary laser welding according to the welding parameters obtained in step S603.

3. The high-speed connector welding process combining resistance welding and laser welding according to claim 2, characterized in that, In step S604, the welding parameters include the component temperature rise value, the spot shape, and the welding position.

4. The high-speed connector welding process combining resistance welding and laser welding according to claim 1 or 2, characterized in that, Laser welding equipment is provided, which includes a laser generator, a first galvanometer, a second galvanometer, a third galvanometer, and a laser head. The laser emitted by the laser generator is transmitted to the laser head after being refracted sequentially by the first galvanometer, the second galvanometer, and the third galvanometer. The laser head collects and transmits the laser to the component. The first galvanometer, the second galvanometer, and the third galvanometer laser head are each equipped with a rotation driver, which is used to drive the first galvanometer / second galvanometer / third galvanometer to rotate. The laser head is equipped with a positioner, which is used to adjust the spatial position and attitude 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 the refracted laser light, and the gas output end is used to output protective gas.

5. The high-speed connector welding process combining resistance welding and laser welding according to claim 4, characterized in that, The laser head contains a focusing lens and a lifting driver, the lifting driver being used to drive the focusing lens to move up and down relative to the laser head; A sensor is installed at the gas output end to detect whether there is airflow at the gas output end. The sensor is connected to the laser generator signal.

6. 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 were both generated by finite element simulation software.

Images