Welding equipment for machining parts of aviation parts and welding parameter standardization method

Abstract

The invention discloses welding equipment for aviation part and part machining and a welding parameter standardization method, and relates to the technical field of welding equipment.The welding equipment comprises a workbench, mounting plates are symmetrically arranged on the workbench in a sliding mode, and fixing parts are arranged on the mounting plates; a rectangular opening is formed in the workbench, and a first driving part is arranged in the rectangular opening; a mounting frame is arranged on the top face of the workbench, an electric push rod is mounted on the top face of the mounting frame, and a welding machine is mounted at the movable end of the electric push rod. According to the welding device for the aviation parts, through mutual cooperative use of the first driving part and the fixing part, the machined aviation parts can be conveniently clamped and fixed, the phenomenon that the aviation parts shake during welding is avoided, therefore, the aviation parts can be conveniently and accurately welded, and the welding quality of the aviation parts is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of welding equipment, and in particular to welding equipment for machining aviation parts and components and a welding parameter standardization method. Background Art

[0002] In the aviation field, the processing quality of aviation parts is directly related to the performance and safety of aircraft. As a key link in the processing of aviation parts, welding quality control is crucial. However, there are many problems with existing aviation parts welding equipment;

[0003] Traditional welding equipment has a relatively simple fixing method when fixing aviation parts, and it is difficult to ensure the stability of parts during the welding process. During the welding process, aviation parts are very easy to shake, which not only causes deviations in the welding position and fails to meet the high-precision welding requirements, but also may cause welding defects, such as cold welding and desoldering, which seriously affects the welding quality of aviation parts, and further affects the overall performance and safety of aviation products;

[0004] Existing equipment is inconvenient to operate and has low efficiency when performing all-round welding on aviation parts. Due to the lack of effective rotation or adjustment mechanism, it is difficult to perform fast and convenient welding operations on various welding parts of parts. It often takes a lot of time and effort to adjust the position of parts, which increases processing costs and prolongs production cycles.

[0005] Differences in welding parameters when different operators or different batches are producing will lead to uneven welding quality; the lack of unified parameter standards requires operators to constantly try different parameter combinations, which will take up a lot of time and lead to frequent interruptions in the welding process, extended production cycles, and rework caused by welding quality problems, further reducing production efficiency; unstable welding quality may cause failures of aviation parts during use, affecting the performance and safety of the aircraft. Summary of the invention

[0006] In order to solve the problems in the background technology, the present invention proposes a welding device for machining aviation parts and a welding parameter standardization method.

[0007] In order to achieve the above object, the present invention adopts the following technical solutions:

[0008] A welding device for processing aviation parts and components, comprising a workbench, a mounting plate symmetrically slidably arranged on the workbench, and a fixing piece for fixing the aviation parts and components is arranged on the mounting plate;

[0009] A rectangular opening is provided on the workbench, and a driving member 1 for driving the fixing member is provided in the rectangular opening;

[0010] A mounting frame is arranged on the top surface of the workbench, an electric push rod is installed on the top surface of the mounting frame, and a welding machine is installed on the movable end of the electric push rod.

[0011] Preferably, the fixing member comprises a bracket fixedly connected to the top surface of the mounting plate and a circular tube rotatably disposed in the bracket, a locking bolt is threadedly connected to the circular tube, and a second driving member is also provided on the mounting plate.

[0012] Preferably, the second driving member comprises a micro motor arranged on the mounting plate and a short shaft arranged on the output shaft of the micro motor, a small gear is arranged on the short shaft, and a large gear meshing with the small gear is arranged on the outer wall of the circular tube.

[0013] Preferably, vertical plates 1 are fixedly connected to both sides of the top of the rectangular opening, guide rods are symmetrically arranged between the vertical plates 1, and the mounting plate and the guide rods are slidably arranged.

[0014] Preferably, the driving member 1 includes a threaded sleeve arranged on the bottom surface of the mounting plate, and the threaded sleeve is slidably arranged in a rectangular opening, and vertical plates 2 are fixedly connected on both sides of the bottom of the rectangular opening, and a bidirectional screw rod that cooperates with the threaded sleeve is rotatably arranged between the vertical plates 2, a driving motor is arranged at one end of the bidirectional screw rod, and the driving motor is installed on one of the vertical plates 2.

[0015] In summary, due to the adoption of the above technical solution, the beneficial effects of the present invention are:

[0016] 1. By using the driving member 1 and the fixing member in coordination with each other, it is convenient to clamp and fix the processed aviation parts and components, and avoid the shaking of the aviation parts and components during welding, so as to facilitate the accurate welding of the aviation parts and components and improve the welding quality of the aviation parts and components; wherein, by using the driving member 2, it is convenient to rotate the circular tube, so as to facilitate the rotation of the aviation parts and components, further facilitate the comprehensive welding of the aviation parts and components, and improve the working efficiency of the welding of the aviation parts and components;

[0017] 2. The internal and external welding conditions of the weld are judged through the analysis module, and the parts with qualified internal and external welds are judged as qualified parts. The qualified parts are analyzed to determine the optimal parameter data, and the feasibility of the optimal parameter data is analyzed. After the feasibility is determined, the welding operation is performed according to the optimal parameter data; the uneven welding quality caused by parameter differences is avoided, and the welding quality of each aviation component can be ensured to meet high standards and remain consistent, avoiding the performance of the aircraft due to the welding quality problems of the parts, and allowing operators to spend a lot of time to explore and try different parameter combinations, saving a lot of time and labor costs, effectively shortening the production cycle, and improving production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It shows a schematic structural diagram of a front viewing angle provided by an embodiment of the present invention;

[0019] Figure 2 It shows a schematic structural diagram of a side viewing angle provided by an embodiment of the present invention;

[0020] Figure 3 Shows a schematic diagram of the structure of the upward viewing angle according to an embodiment of the present invention;

[0021] Figure 4 A system flow chart provided according to an embodiment of the present invention is shown.

[0022] Legend:

[0023] 1. Workbench; 2. Guide rod; 3. Micro motor; 4. Mounting plate; 5. Large gear; 6. Bracket; 7. Mounting frame; 8. Welding machine; 9. Electric push rod; 10. Vertical plate 1; 11. Small gear; 12. Round tube; 13. Locking bolt; 14. Rectangular opening; 15. Threaded sleeve; 16. Driving motor; 17. Bidirectional screw rod; 18. Vertical plate 2. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0025] See also Figure 1 - Figure 4 , the present invention provides a technical solution:

[0026] A welding device for processing aviation parts and components, comprising a workbench 1, a mounting plate 4 is symmetrically slidably provided on the workbench 1, and a fixing piece for fixing the aviation parts and components is provided on the mounting plate 4; by using the fixing piece, the processed aviation parts and components are conveniently clamped and fixed, and the shaking phenomenon of the aviation parts and components during welding is avoided, so that the aviation parts and components are conveniently accurately welded, and the quality of welding of the aviation parts and components is improved;

[0027] A rectangular opening 14 is provided on the workbench 1, and a driving member 1 for driving the fixing member is provided in the rectangular opening 14; the use of the driving member 1 facilitates driving the fixing member, thereby facilitating clamping and fixing of the aviation component, which is simple and convenient to operate, and improves the work efficiency of fixing the aviation component;

[0028] A mounting frame 7 is provided on the top surface of the workbench 1, an electric push rod 9 is installed on the top surface of the mounting frame 7, and a welding machine 8 (which is the prior art) is installed on the movable end of the electric push rod 9; wherein, by using the electric push rod 9, the position of the welding machine 8 is easily adjusted, thereby facilitating the welding of aviation parts.

[0029] In the present invention, the fixing part includes a bracket 6 fixedly connected to the top surface of the mounting plate 4 and a circular tube 12 rotatably arranged in the bracket 6, a locking bolt 13 is threadedly connected to the circular tube 12, and a driving part 2 is also provided on the mounting plate 4; by using the locking bolt 13, it is convenient to fix the aviation parts; by using the driving part 2, it is convenient to rotate the circular tube 12, thereby facilitating the rotation of the aviation parts, further facilitating the comprehensive welding of the aviation parts, and improving the work efficiency of welding of aviation parts.

[0030] In the present invention, the second driving member includes a micro motor 3 arranged on a mounting plate 4 and a short shaft arranged on the output shaft of the micro motor 3 , a small gear 11 is arranged on the short shaft, and a large gear 5 meshing with the small gear 11 is arranged on the outer wall of the circular tube 12 .

[0031] In the present invention, vertical plates 10 are fixedly connected to both sides of the top of the rectangular opening 14, guide rods 2 are symmetrically arranged between the vertical plates 10, and the mounting plate 4 is slidably arranged with the guide rods 2; by using the guide rods 2, it is convenient to guide the mounting plate 4, so that the mounting plate 4 moves along a certain path.

[0032] In the present invention, the driving member 1 includes a threaded sleeve 15 arranged on the bottom surface of the mounting plate 4, and the threaded sleeve 15 is slidably arranged in the rectangular opening 14, and two vertical plates 18 are fixedly connected on both sides of the bottom of the rectangular opening 14. A bidirectional screw rod 17 that cooperates with the threaded sleeve 15 is rotatably arranged between the two vertical plates 18, and a driving motor 16 is arranged at one end of the bidirectional screw rod 17, and the driving motor 16 is installed on one of the two vertical plates 18.

[0033] A control component is also provided inside the controller of the welding machine 8, and the control component includes a collection module, an analysis module and an execution module;

[0034] The historical production records of aviation parts welding are sorted out and classified according to the materials of aviation parts, which is recorded as Classification 1. The parts of Classification 1 with corresponding materials are classified again according to the models of the parts, which is recorded as Classification 2. The parts of Classification 2 with corresponding models are classified again according to the welding joint forms, which is recorded as Classification 3.

[0035] The welded parts in the historical production records are inspected to obtain the data of weld depth, weld width and reinforced height, and the obtained data of weld depth, weld width and reinforced height are compared with the corresponding data of preset standard welds. 、Melt width and Yu Gao All three data are smaller than the corresponding data of the preset standard weld, and the weld size is qualified. , then the welding dimensions of the parts are determined to be qualified. is the preset size qualification threshold, , and are the weight coefficients corresponding to the penetration depth, weld width and residual height respectively; after determining that the welding size is qualified, the image data collected at the weld position is grayed out, and the processed gray image is segmented according to the size of the image pixel block, and then the gray value of each segmented image block is calculated, and the gray value of the image block is compared with the gray value data of the image block at the corresponding position of the standard weld. If the absolute value of the gray value difference between the two is less than the preset gray value difference threshold, the weld color is determined to be good; otherwise, the weld color is determined to be abnormal, and the number of image blocks with abnormal color is counted. According to statistics, the total number of image blocks corresponding to the weld in the grayscale image is , if the preset color ratio threshold , the welding color is judged to be qualified; otherwise, the welding color is judged to be unqualified; the distance data between the weld and the detection equipment is detected by rotating around the weld. If the detection distance data is not within the preset distance range, the welding surface flatness is judged to be abnormal, and the position where the welding surface flatness is judged to be abnormal is marked as a flatness abnormal point. A circle is drawn with the flatness abnormal point as the center and the weld width as the radius, which is recorded as the measurement circle. The largest flatness abnormal point is selected, and a circle is drawn with half the width of the largest flatness abnormal point as the radius, which is recorded as a split circle. The measurement circle is evenly divided by the split circle, and the number of split circles with flatness abnormal points in the measurement circle is counted. For statistics, if the preset flattening ratio threshold , The total number of divided circles in the measured circle is the total number of divided circles in the measured circle, and the weld surface at the detection position is judged to be flat and qualified; if the weld size, color and surface flatness are all judged to be qualified, and the weld external qualification is , then the weld seam is judged to be qualified on the outside. To preset the external qualified threshold, , and are the weight coefficients corresponding to size, color and surface smoothness respectively;

[0036] The ultrasonic probe is tightly coupled to the weld surface through a coupling agent, and the coupling agent is kept continuously covered while the ultrasonic probe moves along the weld. During the detection process, the reflected signal waveforms from different positions inside the weld are recorded, and then the amplitude and waveform data of the recorded waveforms are recorded. If the detected amplitude is less than the preset amplitude threshold value one, and the waveform is a single peak, it is determined that there are pores at the detected weld position; if the detected amplitude is greater than the preset amplitude threshold value one, less than the preset amplitude threshold value two, and the waveform is greater than the preset waveform width data, it is determined that there are slag inclusions at the detected weld position; if the detected amplitude is greater than the preset amplitude threshold value two, the waveform is greater than the preset waveform width data, and the waveform has multiple peaks, it is determined that there are cracks at the detected weld position; through the gain adjustment function of the ultrasonic detection equipment, the defect reflection amplitude used for detection is made to reach the same level as the reflection amplitude of the standard reflector, and then the defect equivalent is determined according to the size of the standard reflector, and the internal qualification of the weld is determined. , , and are the defect equivalents of pores, slag inclusions and cracks, respectively. , and are the weight coefficients corresponding to the equivalent of pores, slag inclusions and cracks respectively; if none of the above three situations occur and the preset internal qualified threshold , then the internal welding of the weld is judged to be qualified;

[0037] If the outside of the weld is qualified and the inside of the weld is qualified, the welded component is judged to be qualified; during the welding process of the components judged to be qualified, the welding current, voltage, welding speed, wire feeding speed, shielding gas flow, welding time and preheating temperature data are retrieved and classified according to category one, category two and category three, and the wire feeding speed data option is selected to analyze the optimal wire feeding speed for welding of components in category three; the weld quality data corresponding to the wire feeding speed changes during the welding operation of components of the same material in the historical production records are obtained, and the weld quality , and are the weight coefficients corresponding to the external and internal conformity of the weld respectively;

[0038] The maximum value of the weld quality data corresponding to different wire feeding speeds is selected, and the wire feeding speed corresponding to the maximum value of the weld quality data is determined to be the optimal wire feeding speed; then the same operation is performed on the welding current, voltage, welding speed, shielding gas flow rate, welding time and preheating temperature data to obtain the optimal welding current, optimal voltage, optimal welding speed, optimal shielding gas flow rate, optimal welding time and optimal preheating temperature data.

[0039] Enter the optimal parameter combination in the welding simulation software to simulate the welding process and analyze the weld formation in the simulation results. , Temperature distribution , stress state data Conduct testing and simulate feasibility coefficients , , and are the weight coefficients corresponding to the forming condition, temperature distribution and stress state respectively;

[0040] According to the order of optimal welding current, optimal voltage, optimal welding speed, optimal wire feeding speed, optimal shielding gas flow, optimal welding time and optimal preheating temperature, the optimal data of welding equipment adaptation is checked in turn to obtain the optimal welding current adaptation value , optimal voltage adaptation value , Optimal welding speed adaptation value , Optimal wire feeding speed adaptation value , Optimal protective gas flow adaptation value , Optimal welding time adaptation value And the optimal preheating temperature adaptation value , adaptation feasible coefficient , , , , , , and They are weight coefficients of the adaptation values ​​corresponding to the optimal welding current, optimal voltage, optimal welding speed, optimal wire feeding speed, optimal shielding gas flow, optimal welding time and optimal preheating temperature;

[0041] The welding process may be affected by power grid fluctuations, equipment aging, and environmental factors. Even if the initial settings are optimized, the parameters fluctuate greatly during actual welding, resulting in unstable welding quality. , and are the weight coefficients of voltage fluctuation and frequency fluctuation respectively, and are the rated voltage and rated frequency of the power grid, is the difference between the actual voltage and the rated voltage, is the difference between the actual frequency and the rated frequency; the equipment has Key components, the aging degree of each component is , then the equipment aging impact value , is the weight coefficient of the corresponding component's impact on the overall performance of the equipment; environmental factors include ambient temperature , Ambient humidity and dust concentration , Environmental Impact Value , , and They are the reference values ​​of temperature, humidity and dust concentration suitable for welding. and The acceptable upper and lower limits of the welding environment temperature are: and are the acceptable upper and lower limits of humidity, and are the acceptable upper and lower limits of dust concentration, , and is the weight coefficient corresponding to ambient temperature, ambient humidity and dust concentration; In summary, the stable feasibility coefficient , , and is the weight coefficient corresponding to power grid fluctuation, equipment aging and environmental factors;

[0042] Total operational feasibility , , and is the weight coefficient corresponding to the simulation feasibility coefficient, adaptation feasibility coefficient and stable feasibility coefficient. If the feasibility threshold is preset , then it is determined that the method of performing the welding operation according to the optimal data is feasible; otherwise, the corresponding welding qualified component parameters are copied according to the corresponding component type, and the welding operation is performed according to the copied parameters.

[0043] Working principle: When the present invention is used, firstly, two aviation parts are placed in the circular tube 12 respectively, and then the locking bolt 13 is rotated to fix the aviation parts in the circular tube 12;

[0044] Then, the driving motor 16 is started, and the output shaft of the driving motor 16 rotates to drive the bidirectional screw rod 17 to rotate, thereby driving the two threaded sleeves 15 to move relative to each other, so that the two aviation parts move relative to each other, and finally the two aviation parts are docked together;

[0045] Then, the electric push rod 9 is turned on, and the movable end of the electric push rod 9 is extended to drive the welding machine 8 to move downward, so that the welding head of the welding machine 8 contacts the junction of the two aviation parts, and the welding machine 8 is turned on to weld the aviation parts.

[0046] During welding, the micro motor 3 is turned on, and the output shaft of the micro motor 3 drives the short shaft to rotate, thereby driving the small gear 11 to rotate, thereby driving the large gear 5 to rotate, and further driving the circular tube 12 and the aviation parts to rotate, thereby facilitating the comprehensive rotation of the aviation parts and improving the work efficiency of the welding of aviation parts and components.

[0047] The above description of the embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A welding device for processing aviation parts, comprising a workbench (1), characterized in that: A mounting plate (4) is symmetrically slidably provided on the workbench (1), and a fixing piece for fixing aviation parts is provided on the mounting plate (4); The workbench (1) is provided with a rectangular opening (14), and a driving member 1 for driving the fixing member is provided in the rectangular opening (14); A mounting frame (7) is provided on the top surface of the workbench (1), an electric push rod (9) is installed on the top surface of the mounting frame (7), and a welding machine (8) is installed on the movable end of the electric push rod (9); A control component is also provided inside the controller of the welding machine (8), and the control component includes a collection module, an analysis module and an execution module; The acquisition module detects the size, color and flatness data of the weld, detects the internal defects of the weld, and transmits the detected data to the analysis module; The analysis module analyzes the size, color and flatness data of the weld to determine whether the outside of the weld is qualified. If qualified, the defects inside the weld are analyzed and whether the inside of the weld is qualified. The welds that are qualified inside and outside are determined to be qualified parts. The qualified parts are determined to have optimal parameter data, and the feasibility of performing welding operations according to the optimal parameter data is determined. If it is determined to be feasible, a welding execution signal is generated and transmitted to the execution module; The execution module receives the signal transmitted by the analysis module and performs corresponding operations.

2. The welding equipment for processing aviation parts according to claim 1, characterized in that: The fixing member comprises a bracket (6) fixedly connected to the top surface of the mounting plate (4) and a circular tube (12) rotatably arranged in the bracket (6), a locking bolt (13) being threadedly connected to the circular tube (12), and a second driving member is also provided on the mounting plate (4).

3. The welding equipment for processing aviation parts according to claim 2, characterized in that: The second driving member comprises a micro motor (3) arranged on a mounting plate (4) and a short shaft arranged on an output shaft of the micro motor (3), a small gear (11) being arranged on the short shaft, and a large gear (5) meshing with the small gear (11) being arranged on the outer wall of the circular tube (12).

4. The welding equipment for processing aviation parts according to claim 3, characterized in that: Vertical plates (10) are fixedly connected to both sides of the top of the rectangular opening (14), guide rods (2) are symmetrically arranged between the vertical plates (10), and the mounting plate (4) and the guide rods (2) are slidably arranged.

5. The welding equipment for processing aviation parts according to claim 4, characterized in that: The driving member 1 comprises a threaded sleeve (15) arranged on the bottom surface of the mounting plate (4), and the threaded sleeve (15) is slidably arranged in a rectangular opening (14), and two vertical plates (18) are fixedly connected to both sides of the bottom of the rectangular opening (14), and a bidirectional screw rod (17) cooperating with the threaded sleeve (15) is rotatably arranged between the two vertical plates (18), and a driving motor (16) is arranged at one end of the bidirectional screw rod (17), and the driving motor (16) is mounted on one of the two vertical plates (18).

6. A welding parameter standardization method for welding equipment for machining aviation parts according to any one of claims 1 to 5, characterized in that: The welding parameter standardization method includes the following steps: S1: Sort out the historical production records of welding, and judge whether the outside of the weld is qualified according to the size, color and flatness of the weld; then detect the defects inside the weld and judge whether the inside of the weld is qualified; the welds that are qualified inside and outside are judged as qualified parts; S2: Retrieving parameter data of the welding process for the qualified parts, determining the welding quality data of the corresponding parameter data, and selecting the maximum value of the welding quality data. The parameter data corresponding to the maximum value of the welding quality data is the optimal parameter data; S3: The feasibility of performing the welding operation according to the optimal parameter data is judged from the three aspects of simulation feasibility, adaptation feasibility and stability feasibility; if it is judged to be feasible, the welding operation is performed according to the optimal parameter data; otherwise, the corresponding welding qualified component parameters are copied according to the corresponding component type, and the welding operation is performed according to the copied parameters.

7. The welding parameter standardization method of welding equipment for machining aviation parts according to claim 6, characterized in that: The analysis module determines the external quality of parts as follows: T1: Test the welded parts in the historical production records to obtain the data of weld depth, weld width and reinforced height, and compare the obtained data of weld depth, weld width and reinforced height with the corresponding data of preset standard welds. 、Melt width and Yu Gao All three data are smaller than the corresponding data of the preset standard weld, and the weld size is qualified. , then the welding dimensions of the parts are determined to be qualified. is the preset size qualification threshold, , and are the weight coefficients corresponding to the depth of penetration, width of penetration and residual height respectively; T2: After judging that the welding size is qualified, the image data collected at the weld position is grayed out, and the processed gray image is segmented according to the size of the image pixel block. Then the gray value of each segmented image block is calculated, and the gray value of the image block is compared with the gray value data of the image block at the corresponding position of the standard weld. If the absolute value of the gray value difference between the two is less than the preset gray value difference threshold, the weld color is judged to be good. Otherwise, the weld color is judged to be abnormal, and the number of image blocks with abnormal color is counted. According to statistics, the total number of image blocks corresponding to the weld in the grayscale image is , if the preset color ratio threshold , the welding color is judged to be qualified; Otherwise, the welding color is judged to be unqualified; T3: Rotate around the weld to detect the distance data between the weld and the detection equipment. If the detection distance data is not within the preset distance range, the weld surface is judged to be flat and abnormal. The position where the weld surface is judged to be flat and abnormal is marked as a flat abnormal point. A circle is drawn with the flat abnormal point as the center and the weld width as the radius, which is recorded as the measurement circle. The largest flat abnormal point is selected and a circle is drawn with half the width of the largest flat abnormal point as the radius, which is recorded as a split circle. The measurement circle is evenly divided by the split circle, and the number of split circles with flat abnormal points in the measurement circle is counted. For statistics, if the preset flattening ratio threshold , The total number of divided circles in the measured circle is the standard for determining whether the welding surface at the detection position is flat and integrated; T4: If the weld size, color and surface flatness are all qualified, and the weld external quality is qualified , then the weld seam is judged to be qualified on the outside, To preset the external qualified threshold, , and They are the weight coefficients corresponding to size, color and surface smoothness respectively.

8. The welding parameter standardization method of welding equipment for machining aviation parts according to claim 7, characterized in that: The analysis module determines the internal quality of the parts as follows: Y1: During the ultrasonic probe detection process, the reflected signal waveform from different positions inside the weld is recorded, and then the amplitude and waveform data of the recorded waveform are recorded. If the detected amplitude is less than the preset amplitude threshold value 1 and the waveform is a single peak, it is determined that there is a pore at the detected weld position; If the detected amplitude is greater than the preset amplitude threshold value 1, less than the preset amplitude threshold value 2, and the waveform is greater than the preset waveform width data, it is determined that slag inclusion exists at the detected weld position; If the detected amplitude is greater than the preset amplitude threshold value 2, the waveform is greater than the preset waveform width data, and the waveform has multiple peaks, it is determined that there is a crack at the detected weld position; Y2: Through the gain adjustment function of the ultrasonic testing equipment, the reflection amplitude of the defect used for detection is made to reach the same level as the reflection amplitude of the standard reflector, and then the defect equivalent and the internal qualification of the weld are determined according to the size of the standard reflector. , , and are the defect equivalents of pores, slag inclusions and cracks, respectively. , and are the weight coefficients corresponding to the equivalent of pores, slag inclusions and crack defects respectively; Y3: If none of the above three situations occur and the preset internal qualified threshold , the inside of the weld is judged to be qualified; if the outside of the weld is qualified and the inside of the weld is qualified, the welded parts are judged to be qualified.

9. The welding parameter standardization method of welding equipment for machining aviation parts according to claim 8, characterized in that: The analysis module determines the optimal parameter data in the following steps: P1: The historical production records of aviation parts welding are sorted out and classified according to the materials of aviation parts, which is recorded as Classification 1. The parts of Classification 1 with corresponding materials are classified again according to the models of the parts, which is recorded as Classification 2. The parts of Classification 2 with corresponding models are classified again according to the welding joint forms, which is recorded as Classification 3. P2: During the welding process of the parts judged as qualified for welding, the welding current, voltage, welding speed, wire feeding speed, shielding gas flow, welding time and preheating temperature data are retrieved, and classified according to category one, category two and category three. The wire feeding speed data option is selected to analyze the optimal wire feeding speed for welding of parts in category three; the welding quality data of the weld corresponding to the change of wire feeding speed during the welding operation of parts of the same material in the historical production records are obtained, and the welding quality of the weld is analyzed. , and are the weight coefficients corresponding to the external and internal conformity of the weld respectively; P3: Select the maximum value of the weld quality data corresponding to different wire feeding speeds, and determine that the wire feeding speed corresponding to the maximum value of the weld quality data is the optimal wire feeding speed; then perform the same operation on the welding current, voltage, welding speed, shielding gas flow, welding time and preheating temperature data to obtain the optimal welding current, optimal voltage, optimal welding speed, optimal shielding gas flow, optimal welding time and optimal preheating temperature data.

10. The welding parameter standardization method of welding equipment for machining aviation parts according to claim 9, characterized in that: The analysis module analyzes the feasibility of the optimal parameters and determines the following steps: Q1: Input the optimal parameter combination into the welding simulation software to simulate the welding process and analyze the weld formation in the simulation results. , Temperature distribution , stress state data Conduct testing and simulate feasibility coefficients , , and are the weight coefficients corresponding to the forming condition, temperature distribution and stress state respectively; Q2: Check the optimal data of welding equipment adaptation in the order of optimal welding current, optimal voltage, optimal welding speed, optimal wire feeding speed, optimal shielding gas flow, optimal welding time and optimal preheating temperature to obtain the optimal welding current adaptation value. , optimal voltage adaptation value , Optimal welding speed adaptation value , Optimal wire feeding speed adaptation value , Optimal protective gas flow adaptation value , Optimal welding time adaptation value And the optimal preheating temperature adaptation value , adaptation feasible coefficient , , , , , , and They are weight coefficients of the adaptation values ​​corresponding to the optimal welding current, optimal voltage, optimal welding speed, optimal wire feeding speed, optimal shielding gas flow, optimal welding time and optimal preheating temperature; Q3: Impact value of power grid fluctuations , and are the weight coefficients of voltage fluctuation and frequency fluctuation respectively, and are the rated voltage and rated frequency of the power grid, is the difference between the actual voltage and the rated voltage, is the difference between the actual frequency and the rated frequency; the equipment has Key components, the aging degree of each component is , then the equipment aging impact value , is the weight coefficient of the corresponding component's impact on the overall performance of the equipment; environmental factors include ambient temperature , Ambient humidity and dust concentration , Environmental Impact Value , , and They are the reference values ​​of temperature, humidity and dust concentration suitable for welding. and The acceptable upper and lower limits of the welding environment temperature are: and are the acceptable upper and lower limits of humidity, and are the acceptable upper and lower limits of dust concentration, , and is the weight coefficient corresponding to ambient temperature, ambient humidity and dust concentration; In summary, the stable feasibility coefficient , , and is the weight coefficient corresponding to power grid fluctuation, equipment aging and environmental factors; Q4: Overall operational feasibility , , and is the weight coefficient corresponding to the simulation feasibility coefficient, adaptation feasibility coefficient and stable feasibility coefficient. If the feasibility threshold is preset , then it is determined that the method of performing the welding operation according to the optimal data is feasible; otherwise, the corresponding welding qualified component parameters are copied according to the corresponding component type, and the welding operation is performed according to the copied parameters.

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