Weld joint detection device and welding table

Abstract

The utility model discloses a weld joint detection device and a welding table, which are used in the technical field of welding detection devices, and comprise a moving mechanism, a detection mechanism and a welding head, a welding head is arranged at the moving end of the moving mechanism, and a detection mechanism is arranged on the welding head; the moving mechanism comprises a rotating seat, a first driving part, a second driving part, a first rotating arm and a second rotating arm; a first rotating arm is rotationally mounted on the rotating seat; the first driving part is used for driving the first rotating arm to rotate; the first rotating arm is rotationally connected with the second rotating arm; the second driving part is used for driving the second rotating arm to rotate; a welding head is mounted on the second rotating arm; rotating shafts of the rotating seat and the first rotating arm are perpendicular to rotating shafts of the first rotating arm and the second rotating arm in different planes; the detection mechanism comprises a sound sensor, a light sensor and a visual sensor; the acoustic sensor, the optical sensor and the visual sensor are all arranged on the welding head; the problems that in the prior art, detection is not comprehensive, and the welding angle cannot be flexibly adjusted are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of welding detection devices, in particular to a weld detection device and a welding table. Background Art

[0002] Laser welding is a process that uses the radiation energy of a laser to achieve effective welding. Its working principle is: by a specific method to excite the laser active medium to oscillate reciprocally in the resonant cavity, thus forming a stimulated radiation beam. When the beam contacts the workpiece, its energy is absorbed by the workpiece, and welding can be carried out when the temperature reaches the melting point of the material; laser welding also has certain limitations, requiring high assembly accuracy of the weldment and no significant deviation in the position of the beam on the workpiece; no matter which welding process is adopted, waste products will be generated. At present, in industrial manufacturing, the control of product quality mainly adopts real-time monitoring technology rather than post-weld treatment technology; therefore, the real-time monitoring of the welding process has become the research focus for the automation of laser welding.

[0003] The prior art has disclosed a laser welding device capable of automatic positioning and detection (publication number CN210755843U), which has disclosed a detection mechanism that uses a three-axis movement to drive a detection mechanism to move linearly. Its moving mechanism can only drive it to perform welding detection on a certain straight line. However, on the one hand, it cannot perform multi-angle welding and cannot change other welding angles and corresponding detection angles, and the welding angle is not flexible; on the other hand, it only involves a vision camera and a photoelectric sensor, ignoring the analysis of acoustic signals. Acoustic signals can accurately reflect welding conditions such as laser power and welding speed, so its detection means are not comprehensive enough. It can be seen that the existing devices have problems of incomplete detection and inability to flexibly adjust the welding angle.

[0004] Therefore, it is of practical value to study a weld detection device and a welding table that can perform multi-means and multi-angle flexible welding and detection of sound, light, and vision. Summary of the Utility Model

[0005] The utility model provides a weld detection device and a welding table, and proposes a weld detection device that combines multiple detection means of sound, light, and vision and can be changed at multiple angles, solving the problems of incomplete detection and inability to flexibly adjust the welding angle in the prior art.

[0006] In a first aspect, the utility model provides a weld detection device, including a moving mechanism, a detection mechanism, and a welding head; the welding head is provided on the moving end of the moving mechanism, and the detection mechanism is provided on the welding head;

[0007] The moving mechanism includes a rotating seat, a first driving part, a second driving part, a first rotating arm, and a second rotating arm;

[0008] The first rotating arm is rotatably mounted on the rotating seat, and the first driving part is used to drive the first rotating arm to rotate;

[0009] The first rotating arm is rotatably connected to the second rotating arm, and the second driving part is used to drive the second rotating arm to rotate;

[0010] The welding head is mounted on the second rotating arm;

[0011] The rotating axis of the rotating seat and the first rotating arm is skew perpendicular to the rotating axis of the first rotating arm and the second rotating arm; The detection mechanism includes a sound sensor, a light sensor and a vision sensor; The sound sensor, the light sensor and the vision sensor are all arranged on the welding head.

[0012] In one embodiment of the first aspect, the two ends of the first rotating arm are respectively a first wide end and a first narrow end, and the thickness of the first wide end is greater than that of the first narrow end; The second rotating arm is rotatably mounted on the first wide end.

[0013] In one embodiment of the first aspect, there is an arc transition between the top surface of the first wide end and the top surface of the first narrow end.

[0014] In one embodiment of the first aspect, the two ends of the second rotating arm are respectively a second wide end and a second narrow end, the thickness of the second wide end is greater than that of the second narrow end, the first rotating arm is rotatably mounted on the second wide end, and the welding head is mounted on the second narrow end.

[0015] In one embodiment of the first aspect, there is a planar transition between the surface of the second wide end and the surface of the second narrow end.

[0016] In one embodiment of the first aspect, a third driving part is further included; The welding head is rotatably connected to the second rotating arm, and the third driving part is used to drive the second rotating arm to rotate.

[0017] In one embodiment of the first aspect, the weld detection device further includes a shielding gas mechanism; The shielding gas mechanism includes an air outlet pipe and a gas storage tank, the air outlet pipe is communicated with the gas storage tank, and the air outlet pipe is aligned with the welding part of the welding head.

[0018] In one embodiment of the first aspect, the weld detection device further includes a control mechanism; the control mechanism is in signal connection with the acoustic sensor, the optical sensor, and the vision sensor, and is also in signal connection with the first driving part and the second driving part; the control mechanism is configured to receive signals from the acoustic sensor, the optical sensor, and the vision sensor, and output control commands to the first driving part and the second driving part.

[0019] In a second aspect, the present utility model provides a welding table, which applies the weld detection device of the first aspect, and includes:

[0020] The weld detection device, an operation table body, and a welding object fixing device with a fixed position;

[0021] The weld detection device and the welding object fixing device are installed on the operation table body; the welding trajectory of the weld detection device covers the fixed position.

[0022] In one embodiment of the second aspect, the welding object fixing device includes at least two fixing blocks and multiple pairs of locking mechanisms; the adjacent fixing blocks are arranged opposite to each other to form the fixed position, and multiple pairs of the locking mechanisms are aligned with the fixed position, and the locking mechanisms are used to lock the items in the fixed position.

[0023] From the above technical solutions, it can be seen that the present utility model has at least the following advantages:

[0024] In a first aspect, an embodiment of the present utility model provides a weld detection device, including: a moving mechanism, a detection mechanism, and a welding head; the moving mechanism includes a rotating seat, a first driving part, a second driving part, a first rotating arm, and a second rotating arm; the first rotating arm is rotatably installed on the rotating seat, and the first driving part is used to drive the first rotating arm to rotate; the first rotating arm is rotatably connected to the second rotating arm, and the second driving part is used to drive the second rotating arm to rotate; the welding head is installed on the second rotating arm; the rotation axis of the rotating seat and the first rotating arm and the rotation axis of the first rotating arm and the second rotating arm are skew perpendicular; so in actual application, the first driving part can drive the first rotating arm to perform circumferential rotation around the vertical direction, the second driving part can drive the second rotating arm to perform circumferential rotation around the horizontal direction, and under the rotation of the second rotating arm, the position of the welding head can be adjusted, from the original state of being vertically and directly opposite to a state of being obliquely opposite at a certain inclination angle, that is, other welding and detection angles can be changed to perform welding and weld detection.

[0025] In a first aspect, the weld detection device according to an embodiment of the present invention further provides an acoustic sensor, an optical sensor, and a vision sensor. The acoustic sensor, the optical sensor, and the vision sensor are all provided on the welding head. Therefore, in actual application, the acoustic sensor can capture the acoustic wave signals generated during the welding process, such as the laser power and the welding speed during the welding process. The photoelectric sensor can receive the light reflection of the welding and monitor the morphology and temperature of the molten pool during the welding process. The vision sensor can capture the images and video data during the welding process and more intuitively observe and analyze the dynamic changes during the welding process. After the combination of the three, the detection of the welding is more comprehensive.

[0026] In a second aspect, an embodiment of the present invention provides a welding table, including: a weld detection device, an operating table body, and a workpiece fixing device with a fixed position; the weld detection device and the workpiece fixing device are installed on the operating table body; the welding trajectory of the weld detection device covers the fixed position. Therefore, in actual application, the formed welding table can perform welding at multiple angles and welding detection by multiple means, which is beneficial to improving the welding effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0028] Figure 1 Schematic diagram of the overall structure of a welding table provided by an embodiment of the present invention Figure 1 ;

[0029] Figure 2 Schematic diagram of the overall structure of a welding table provided by an embodiment of the present invention Figure 2 ;

[0030] Figure 3 Schematic diagram of the overall structure of a welding head provided by an embodiment of the present invention Figure 1 ;

[0031] Figure 4 Schematic diagram of the overall structure of a welding head provided by an embodiment of the present invention Figure 2 。

[0032] REFERENCE NUMERALS

[0033] 1. Moving mechanism; 10. Rotating base; 11. First rotating arm; 110. First wide end; 111. First narrow end; 12. Second rotating arm; 120. Second wide end; 121. Second narrow end; 13. Second driving part; 2. Detection mechanism; 20. Sound sensor; 21. Light sensor; 22. Visual sensor; 3. Welding head; 4. Shielding gas mechanism; 40. Gas outlet pipe; 41. Gas storage tank; 5. Control mechanism; 6. Terminal; 7. Operating table body; 8. Welding object fixing device; 80. Fixed clamping block; 81. Locking mechanism. Detailed implementation manners

[0034] An embodiment of the present utility model provides a weld detection device and a welding table, which solve the problems of incomplete detection angle and insufficient detection means in the prior art.

[0035] In order to make the utility model purpose, features, and advantages of the present utility model more obvious and understandable, the technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the embodiments described below are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0036] Embodiment 1

[0037] Please refer to Figures 1 to 4 , a weld detection device includes: a moving mechanism 1, a detection mechanism 2, and a welding head 3;

[0038] The welding head 3 is provided on the moving end of the moving mechanism 1, and the detection mechanism 2 is provided on the welding head 3.

[0039] The moving mechanism 1 includes a rotating base 10, a first driving part, a second driving part 13, a first rotating arm 11, and a second rotating arm 12; the first rotating arm 11 is rotatably installed on the rotating base 10, and the first driving part is used to drive the first rotating arm 11 to rotate; the first rotating arm 11 is rotatably connected to the second rotating arm 12, and the second driving part 13 is used to drive the second rotating arm 12 to rotate; the welding head 3 is installed on the second rotating arm 12; the rotation axis of the rotating base 10 and the first rotating arm 11 is skew perpendicular to the rotation axis of the first rotating arm 11 and the second rotating arm 12.

[0040] The detection mechanism 2 includes a sound sensor 20, a light sensor 21, and a visual sensor 22; the sound sensor 20, the light sensor 21, and the visual sensor 22 are all provided on the welding head 3.

[0041] In this embodiment, by arranging the welding head 3 on the second rotating arm 12 with at least two degrees of rotational freedom, the welding head 3 can rotate at multiple angles relative to the weld seam; moreover, in cooperation with acoustic, optical, and visual sensors 22, the weld seam can be detected by multiple means.

[0042] In practical applications, the user places the object to be welded, and then activates the first driving part and the second driving part 13, so that the first rotating arm 11 and the second rotating arm 12 rotate to the corresponding welding position. The welding head 3 is activated for laser welding. Subsequently, when it is necessary to change the welding angle, the first rotating arm 11 and the second rotating arm 12 are rotated again to adjust the position of the welding head 3, thereby realizing welding at multiple angles. Moreover, since the welding head 3 is equipped with acoustic, optical, and visual sensors 22, the acoustic sensor 20 can capture the acoustic wave signals generated during the welding process, the laser power and welding speed during the welding process; the photoelectric sensor can receive the light reflection during welding and monitor the shape and temperature of the molten pool during the welding process; the visual sensor 22 can capture the images and video data during the welding process, more intuitively observe and analyze the dynamic changes during the welding process. After the three are combined, the detection of welding is more comprehensive.

[0043] In laser welding monitoring, the combination of visual sensors, photoelectric sensors, and acoustic sensors can provide comprehensive monitoring of the welding process: the visual sensor directly observes the welding position, real-time monitors the welding state during the laser welding process, and adjusts the movement trajectory of the welding according to needs to ensure the accurate tracking of the weld seam and the stability of the welding process. Through this direct observation, the visual sensor can provide detailed image data of the welding area, and these data help to detect possible surface defects during the welding process; the photoelectric sensor monitors the welding intensity and quality information by receiving the characteristics of the reflected light signals during the welding process. The intensity and waveform of the reflected light can reflect the thermal distribution and molten pool state of the welding area, thereby providing important information about the welding quality. Especially in judging the uniformity of the weld seam and the welding strength, the photoelectric sensor has extremely high sensitivity; the acoustic sensor is responsible for capturing the acoustic wave signals generated inside during the welding process. These signals are usually closely related to welding parameters such as laser power and welding speed, but since this information is generated by the internal state of the welding and cannot be directly obtained by visual or photoelectric sensors. Therefore, the application of the acoustic sensor makes up for the deficiency that external sensors cannot monitor internal information, provides in-depth data during the welding process, and thus further improves the monitoring of welding quality.

[0044] By combining visual sensors, optoelectronic sensors, and acoustic sensors, this multi-sensor fusion solution can achieve comprehensive monitoring of the welding process. The visual sensor provides surface information and real-time adjustment functions, the optoelectronic sensor provides detection of welding strength and quality, while the acoustic sensor provides precise analysis of the internal state. This combination of the three ensures all-round monitoring from the surface to the interior, from external conditions to internal processes, significantly improving the detection accuracy and reliability of welding quality, thus making the welding process more stable, precise, and controllable; the combination of these three sensors can achieve comprehensive monitoring of the welding process, effectively solving the deficiencies of existing devices in detection means and flexibility.

[0045] In an achievable manner, as Figures 1 to 4 shown, the rotating arms are rotatably connected to each other or to the rotating base 10 through a rotating shaft, and the rotating shaft is rotated by different driving parts to drive the rotation.

[0046] Furthermore, an achievable structure of the first rotating arm 11 and the rotating base 10 is proposed. As Figures 1 to 4 shown, a first rotating shaft is installed on the rotating base 10, the first rotating shaft is arranged vertically, and the first rotating shaft is fixedly connected to the first rotating arm 11. That is, the first rotating arm 11 rotates circumferentially around the vertical direction, and the first rotating shaft is in transmission connection with the first driving part. The ways of transmission connection include but are not limited to gear transmission, rack and pinion transmission, belt transmission, etc.

[0047] Furthermore, an achievable structure of the first rotating arm 11 and the second rotating arm 12 is proposed. As Figures 1 to 4 shown, an installation opening is provided on the first rotating arm 11, a second rotating shaft is installed in the installation opening, the second rotating shaft is arranged horizontally, and the second rotating shaft is fixedly connected to the second rotating arm 12. That is, the second rotating arm 12 rotates circumferentially around the horizontal direction, and the second rotating shaft is in transmission connection with the second driving part 13. The ways of transmission connection also include but are not limited to gear transmission, rack and pinion transmission, belt transmission, etc.

[0048] In an achievable manner, as Figures 1 to 4 shown, the welding head 3 can be rotatably connected to the second rotating arm 12. After the welding head 3 rotates on the second rotating arm 12, that is, the angle of the welding head 3 perpendicular to the axis of the weld seam, the welding head 3 can be adjusted arbitrarily. In addition to the second rotating arm 12 being able to rotate, the welding head 3 can also rotate on the basis of the rotation of the second rotating arm 12, and the rotation of the welding head 3 is more detailed.

[0049] In a specific embodiment, it also includes a third driving unit; the welding head 3 is rotatably connected to the second rotating arm 12, and the third driving unit is used to drive the second rotating arm 12 to rotate. The second rotating arm 12 is provided with a mounting hole, and a third rotating shaft is installed in the mounting hole. The third rotating shaft is parallel to the second rotating shaft, and the third rotating shaft is horizontally arranged. The third rotating shaft is fixedly connected to the welding head 3, that is, the welding head 3 rotates circumferentially around the horizontal direction, and the third rotating shaft is transmission-connected to the third driving unit. The transmission connection method also includes but is not limited to gear transmission, rack transmission, belt transmission, etc.

[0050] In one achievable approach, Figures 1 to 4 As shown, the rotating arm can be designed with one end being thicker, that is, the thicker end can provide a larger cross-sectional area, thereby increasing the bending and torsional resistance of the rotating arm, making it more stable when bearing a larger load.

[0051] A feasible structure of the first rotating arm 11 is further proposed, such as Figures 1 to 4 As shown, the two ends of the first rotating arm 11 are respectively a first wide end 110 and a first narrow end 111, and the thickness of the first wide end 110 is greater than that of the first narrow end 111; the second rotating arm 12 is rotatably mounted on the first wide end 110, and after the first rotating arm 11 adopts this arrangement, the thicker end is connected to the second rotating arm 12 to increase the strength of the connection, and the thinner end and the rotating seat 10 help to reduce the overall weight of the first rotating arm 11, especially in applications where the first rotating arm 11 needs to rotate quickly or move frequently, reducing weight can improve efficiency and response speed.

[0052] More specifically, Figures 1 to 4 As shown, there is an arcuate transition between the top surface of the first wide end 110 and the top surface of the first narrow end 111. After the arcuate transition between the first wide end 110 and the first narrow end 111, stress concentration at the narrow-width change point can be reduced, thereby reducing the risk of material fatigue and fracture.

[0053] A feasible structure of the second rotating arm 12 is further proposed, such as Figures 1 to 4 As shown, the two ends of the second rotating arm 12 are respectively a second wide end 120 and a second narrow end 121, the thickness of the second wide end 120 is greater than that of the second narrow end 121, the first rotating arm 11 is rotatably mounted on the second wide end 120, and the welding head 3 is mounted on the second narrow end 121. Similar to the first rotating arm 11, the thicker end is connected to the first rotating arm 11 to increase the strength of the connection.

[0054] More specifically, Figures 1 to 4 As shown, there is a planar transition between the surface of the second wide end 120 and the surface of the second narrow end 121 , and the planar transition can be achieved by using a simple mold.

[0055] In an implementable manner, as Figures 1 to 4 shown, the sound, light, and vision sensors 22 are connected to the welding head 3 in a manner that aligns with the item to be welded by the welding head 3. After various sensors are aligned with the item to be welded by the welding head 3, the welding conditions of the welding head 3 can be captured. The combination of the sound sensor 20, the photoelectric sensor, and the vision sensor 22 can provide comprehensive monitoring of the welding process. Through the comprehensive analysis of sound waves, optical signals, and image data, the welding quality and defects can be judged more accurately, the reliability of the monitoring can be improved, and interference with the welding process can be avoided.

[0056] In a specific embodiment, as Figures 1 to 4 shown, the sound sensor 20 is installed on the vertical surface of the welding robot arm, and the receiving device is aligned with the welding position, capable of capturing the sound wave signals generated during the welding process. By analyzing these sound waves, the state of the welding molten pool, the penetration depth, and the defects during the welding process can be monitored in real time. By monitoring the changes in sound waves during the welding process through the sound sensor 20, process parameters such as laser power and welding speed can be adjusted to achieve precise process control and ensure the consistency of welding quality.

[0057] In a specific embodiment, as Figures 1 to 4 shown, the photoelectric sensor is installed at the top. By receiving the light reflection of the welding, the shape and temperature of the molten pool during the welding process can be monitored. By analyzing the changes in the optical signals, the welding quality, such as penetration depth and weld appearance, can be judged. By detecting the thermal radiation light emitted during the welding process through the photoelectric sensor, the temperature of the molten pool can be measured to ensure that the molten pool temperature is within the optimal range, thereby ensuring welding quality. The photoelectric sensor has a high-speed response ability and can quickly capture the transient optical signals during the welding process, and is suitable for real-time monitoring and adjustment of high-frequency welding processes.

[0058] In a specific embodiment, as Figures 1 to 4 shown, the vision sensor 22 is installed in the orientation directly facing the welding position to ensure that the entire welding process can be captured. This can capture the images and video data during the welding process. Through image processing technology, the visual features of the welding area, such as the shape of the welding molten pool, the glossiness of the weld, and the distribution of welding sparks, can be extracted. The vision sensor 22 provides additional data information, which can more intuitively observe and analyze the dynamic changes during the welding process, and combined with the sound and light signals, further improve the accuracy and reliability of welding quality monitoring.

[0059] In an implementable manner, as Figures 1 to 4As shown in the figure, in order to improve the weld quality during welding, the weld detection device further includes a shielding gas mechanism 4. The shielding gas mechanism 4 includes an air outlet pipe 40 and a gas storage tank 41. The air outlet pipe 40 is communicated with the gas storage tank 41, and the air outlet pipe 40 is aligned with the welding part of the welding head 3. During welding, the shielding gas can isolate the air and reduce oxidation. Among them, the shielding gas can be selected from, but not limited to, inert gases such as argon and helium.

[0060] In an implementable manner, in order to improve the automation level of welding, as Figures 1 to 4 shown in the figure, the weld detection device is further provided with a control mechanism 5. The control mechanism 5 is signal-connected to the terminal 6, the acoustic sensor 20, the optical sensor 21, the visual sensor 22, the first driving part and the second driving part 13. The control mechanism 5 is used to receive the signals of the acoustic sensor 20, the optical sensor 21, and the visual sensor 22, and output control commands to the first driving part and the second driving part 13. In practical applications, the control mechanism 5 is connected to the driving motors of the sensors and the welding arm. When receiving the signals from the welding monitoring system, it adjusts the current welding parameters according to the real-time welding data. The welding controller can effectively prevent the generation of welding defects (such as pores, cracks, etc.), ensure the stability and consistency of the welding process, reduce human intervention and errors. The welding controller has a high response speed, can respond in time to the data fed back by the sensors, realize the instant adjustment of welding parameters, and display them on the terminal 6, adapt to the rapidly changing welding environment and process requirements, improve the automation degree of the welding process, be applicable to large-scale automated production lines, and improve production efficiency.

[0061] In order to improve the intelligent level of weld detection, the weld detection device is further provided with an analysis mechanism. The analysis mechanism uses wavelet packet preprocessing to eliminate noise for the collected acoustic and optical signals, and then uses the HHT signal processing method for processing. When processing, the IMF signals related to laser welding defects are selected to obtain their characteristic data. At the same time, the visual sensor 22 captures the image or video data during the welding process, and extracts the visual characteristics of the welding area through image processing technology. The acoustic and optical signals and the visual characteristic data are used as inputs and input into the long short-term memory network, and then regularized, that is, the HHT-LSTM model. It is used to identify and classify the welding quality status, and then the welding status is output in real time, including but not limited to welding statuses such as proper penetration, over-penetration, non-penetration, spatter, etc. At this time, the welding motion controller dynamically adjusts the welding posture according to the welding data, adjusts the path, speed, power and shielding gas flow of the laser welding to ensure the welding effect and quality. Finally, when the welding is completed, the result of whether there are defects in the welding is output, thus completing the online monitoring and control of the laser welding quality.

[0062] Embodiment 2

[0063] The present utility model provides a soldering table, as Figures 1 to 4 shown, which applies the weld detection device described in Embodiment 1, including: the weld detection device, an operation table body 7, and a to-be-welded object fixing device 8 with fixed clamping positions; the weld detection device and the to-be-welded object fixing device 8 are installed on the operation table body 7; the welding trajectory of the weld detection device covers the fixed clamping positions.

[0064] In a specific embodiment, as Figures 1 to 4 shown, the to-be-welded object fixing device 8 includes at least two fixed clamping blocks 80 and multiple pairs of locking mechanisms 81; the locking mechanism 81 preferably adopts a vertical clamp, the adjacent fixed clamping blocks 80 are arranged oppositely to form the fixed clamping positions, multiple pairs of the locking mechanisms 81 are aligned with the fixed clamping positions, and the locking mechanism 81 is used to lock the items within the fixed clamping positions.

[0065] During actual application, the to-be-welded object is placed within the fixed clamping position, the welding head 3 starts laser welding, the protective gas outlet outputs protective gas, the sensor transmits the collected optoelectronic and acoustic signals to the acquisition card, the vision sensor 22 transmits the image data to the system, and then the analysis mechanism processes and analyzes the signals, and performs processing such as noise reduction, extraction, optimization, and regularization on the signals; after being processed and analyzed by the system, the current welding state and quality are obtained, and the result is displayed on the terminal 6; at this time, the control mechanism 5 dynamically adjusts the welding posture according to the welding data, adjusts the path, speed, power, and protective gas flow rate of the laser welding to ensure the welding effect and quality. When the device is working normally, the status indicator signal lamp lights up green. When the motion controller adjusts the welding parameters, the yellow lamp lights up. When there are welding defects or welding abnormalities, the red lamp lights up. At the same time, the terminal 6 will also display the current welding characteristic signals and welding quality for the operator to view.

[0066] The above embodiments are only used to illustrate the technical solutions of the present utility model, rather than to limit it; although the present utility model has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements on some of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the various embodiments of the present utility model.

[0067] In the description of the present application and the above-mentioned drawings, the terms "first", "second", "third", "fourth", etc. (if any) are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that the data used in this way can be interchanged under appropriate circumstances so that the embodiments of the present application described herein can be implemented in an order different from those illustrated or described herein. In addition, the terms "comprising" and "having" and any variations thereof are intended to cover non-exclusive inclusion. For example, a process, method, system, product, or device that comprises a series of steps or units is not necessarily limited to those steps or units clearly listed, but may include other steps or units not clearly listed or inherent to these processes, methods, products, or devices.

[0068] Finally, it should also be noted that in this document, relational terms such as "first" and "second" are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations.

Claims

1. A weld detection device, comprising: A moving mechanism, a detection mechanism, and a welding head; the welding head is provided on the moving end of the moving mechanism, and the detection mechanism is provided on the welding head; Characterized in that, The moving mechanism includes a rotating base, a first driving part, a second driving part, a first rotating arm, and a second rotating arm; The first rotating arm is rotatably installed on the rotating base, and the first driving part is used to drive the first rotating arm to rotate; The first rotating arm is rotatably connected to the second rotating arm, and the second driving part is used to drive the second rotating arm to rotate; The welding head is installed on the second rotating arm; The rotation axis of the rotating base and the first rotating arm is skew perpendicular to the rotation axis of the first rotating arm and the second rotating arm; The detection mechanism includes a sound sensor, a light sensor, and a vision sensor; the sound sensor, the light sensor, and the vision sensor are all provided on the welding head.

2. The weld detection device according to claim 1, characterized in that, The two ends of the first rotating arm are respectively a first wide end and a first narrow end, and the thickness of the first wide end is greater than that of the first narrow end; The second rotating arm is rotatably installed on the first wide end.

3. The weld detection device according to claim 2, wherein, There is an arc transition between the top surface of the first wide end and the top surface of the first narrow end.

4. The weld detection device according to claim 1, characterized in that, The two ends of the second rotating arm are respectively a second wide end and a second narrow end, and the thickness of the second wide end is greater than that of the second narrow end; The first rotating arm is rotatably installed on the second wide end, and the welding head is installed on the second narrow end.

5. The weld detection device according to claim 4, characterized in that, There is a planar transition between the surface of the second wide end and the surface of the second narrow end.

6. The weld detection device according to claim 1, characterized in that It further includes a third driving part; the welding head is rotatably connected to the second rotating arm, and the third driving part is used to drive the second rotating arm to rotate.

7. The weld detection device according to claim 1, characterized in that, The weld detection device further includes a shielding gas mechanism; The shielding gas mechanism includes an air outlet pipe and a gas storage tank, the air outlet pipe is communicated with the gas storage tank, and the air outlet pipe is aligned with the welding part of the welding head.

8. The weld detection device according to claim 1, characterized in that, The weld detection device further includes a control mechanism; The control mechanism is signal-connected to the sound sensor, the light sensor, the vision sensor, the first driving part, and the second driving part; The control mechanism is used to receive the signals of the sound sensor, the light sensor, and the vision sensor, and output control commands to the first driving part and the second driving part.

9. A soldering station, characterized in that, Applying the weld detection device according to any one of claims 1 to 8, including: The weld detection device, an operating table body, and a workpiece fixing device with fixed positions; The weld detection device and the workpiece fixing device are installed on the operating table body; the welding trajectory of the weld detection device covers the fixed positions.

10. The welding table according to claim 9, characterized in that, The workpiece fixing device includes at least two fixing blocks and multiple pairs of locking mechanisms; The adjacent fixed clamping blocks are arranged oppositely to form the fixed clamping positions, and multiple pairs of the locking mechanisms are aligned with the fixed clamping positions, and the locking mechanisms are used for locking the articles in the fixed clamping positions.

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