Connector welding conduction test method and system

Abstract

The invention discloses a connector welding conduction testing method and system, and relates to the technical field of welding conduction testing, and the method comprises the steps: recording the voltage, current, pressure and welding duration of welding equipment in a welding process, calculating the abnormal coefficient of the welding process, and calculating the abnormal coefficient of the welding process; the historical welding age limit, the historical welding qualified rate and the welding speed of welding operators are obtained, the reliability coefficient of the welding operators is calculated, the welding operation risk index is calculated, and connector welding abnormity early warning is sent out; after the welding point connector welding abnormity early warning is received, the current and voltage of a to-be-detected welding point and the current and voltage between the to-be-detected welding point and other welding points of the connector are obtained, the conduction abnormity coefficient of the to-be-detected welding point and the conduction abnormity coefficient between the welding points are calculated, and the conduction index of the to-be-detected welding point is further calculated; and sending out a connector welding conduction abnormity early warning to the outside. And when risks exist in the welding operation, conduction test analysis is carried out, so that unnecessary redundancy tests can be avoided, and time and resources are further saved.

Description

Technical Field

[0001] The invention relates to the technical field of welding continuity testing, and in particular to a connector welding continuity testing method and system. Background Art

[0002] With the rapid development of modern electronic technology, connectors are key components for signal transmission and power supply between electronic devices. Their welding quality and conductivity play a vital role in the stability and reliability of the entire system. However, in the actual production process, due to the influence of various factors such as welding process, material quality, and environment, connector welding points often have defects such as cold welding, short circuit, and open circuit. These problems not only affect the electrical performance of the connector, but may also cause the failure of the entire system and even cause safety accidents. Therefore, conducting a continuity test on the connector welding points and timely discovering and handling welding defects have become an important means to ensure the quality of the connector and improve the reliability of the system. Traditional connector welding continuity test methods mainly rely on manual inspection and simple electrical testing equipment. Although manual inspection can intuitively observe the appearance quality of the welding point, it cannot accurately judge the internal conductivity of the welding point; and although simple electrical testing equipment can detect the conductivity of the welding point, it can often only test a single indicator and cannot comprehensively evaluate the quality of the welding point. In addition, these methods also have problems such as low test efficiency, insufficient test accuracy, and test results that are easily affected by human factors.

[0003] In the Chinese invention application with application publication number CN110400500A, a device and an assessment method for welding measurement and conduction training of the control circuit of the ZYJ7 electro-hydraulic switch machine are disclosed, including a host computer and a slave computer, the host computer is connected to the slave computer by wireless connection, the host computer is an industrial computer PC, the slave computer includes an intelligent welding conduction measurement module, a ZYJ7 switch machine control circuit welding module and a power supply module, the intelligent welding conduction measurement module is connected to the ZYJ7 switch machine control circuit welding module, the power supply module is respectively connected to the intelligent welding conduction measurement module and the ZYJ7 switch machine control circuit welding module The circuit welding module is connected, and the intelligent welding conduction measurement module is connected to the host computer through the wireless communication module. The ZYJ7 switch machine control circuit welding module includes a relay base and a plurality of relays. The relay base is provided with relay wiring welding terminals. The plurality of relays are respectively arranged on the relay base, and the relays are respectively connected to the intelligent welding conduction measurement modules.

[0004] In the above invention application, the upper computer controls the lower computer intelligent detection module to measure the continuity of the trainee's wiring and welding results. The upper computer determines whether the wiring and welding are correct based on the detection results of the lower computer. It can quickly detect the welding results and prompt the corresponding welding error circuit, but it is not suitable for actual welding scenarios. If each welding point needs to be detected by an instrument to see if it is conductive, the welding efficiency will be greatly reduced.

[0005] To this end, the present invention provides a connector welding continuity test method and system. Summary of the invention

[0006] 1. Technical issues to be resolved In view of the deficiencies of the prior art, the present invention provides a connector welding conduction test method and system. The present invention records the voltage, current, pressure and duration of welding equipment during welding, calculates the welding process abnormality coefficient, obtains the historical welding years, historical welding qualification rate and welding speed of welding operators, calculates the welding personnel reliability coefficient, calculates the welding operation risk index based on the welding process abnormality coefficient and the welding personnel reliability coefficient, and issues a connector welding abnormality warning to the outside; after receiving the welding abnormality warning of the welding point connector, obtains the current and voltage of the welding point to be tested and the current and voltage between the welding point to be tested and the other welding points of the connector, calculates the conduction abnormality coefficient Zy of the welding point to be tested and the conduction abnormality coefficient between welding points, and further calculates the conduction index of the welding point to be tested, and issues a connector welding conduction abnormality warning to the outside. Conducting conduction test analysis when there is a risk in the welding operation can avoid unnecessary redundant testing, further save time and resources, and thus solve the technical problems recorded in the background technology.

[0007] (II) Technical solution To achieve the above objectives, the present invention is implemented through the following technical solutions: A connector welding continuity test method comprises the following steps: Connect the welded first end to the adapter of the adapter line, and connect the welded connector to the adapter of the slave adapter line, fix them to the welding fixture, select the welding point of the welded connector on the human-machine operation interface, and the welding point is highlighted; Record the voltage Dy, current Dl, pressure Ya and welding duration Sj of the welding equipment during the welding process, calculate the welding process abnormality coefficient Hy, obtain the historical welding years Nx, historical welding qualification rate Hg and welding speed Sd of the welding operator, calculate the welding operator reliability coefficient Rk, calculate the welding operation risk index Czf based on the welding process abnormality coefficient Hy and the welding operator reliability coefficient Rk, and issue an abnormal connector welding warning; After receiving the abnormal welding warning of the welding point connector, obtain the current of the welding point to be tested and voltage and the current between the solder joint to be tested and the rest of the solder joints in the connector and voltage , calculate the abnormal conduction coefficient Zy of the solder joint to be tested and the abnormal conduction coefficient between solder joints , and further calculate the conductivity index Dtz of the solder joint to be tested, and issue an abnormal warning of connector welding conductivity.

[0008] Furthermore, the electrical data is imported into the host computer, including the electrical relationship of the cable, the port code, the cable color, and the connector solder pin position.

[0009] Furthermore, the welded first head is connected to the adapter of the adapter line, and the welded connector is connected to the adapter of the slave adapter line, fixed to the welding fixture, and the welded point of the welded connector is selected on the human-machine operation interface, and the welded point is highlighted.

[0010] Furthermore, the PLC is connected to the welding equipment to record the voltage Dy, current Dl, pressure Ya and duration Sj of the welding equipment during the welding process, and the abnormal coefficient Hy of the welding process is calculated:

[0011] in, Indicates the welding voltage reference value, Indicates the welding current reference value, Indicates the reference value of welding duration. Indicates the welding pressure reference value.

[0012] Furthermore, the welding operator's historical welding years Nx, historical welding qualification rate Hg and welding speed Sd are obtained according to the welding operator's work records, and the welding operator reliability coefficient Rk is calculated:

[0013] Among them, welding speed refers to the amount of welding work completed by the operator in unit time.

[0014] Furthermore, the welding process abnormality coefficient Hy and the welding personnel reliability coefficient Rk are obtained, and the welding operation risk index Czf is calculated:

[0015] in, Indicates the maximum value of the abnormal coefficient of the historical welding process. Indicates the minimum value of the abnormal coefficient of the historical welding process, Indicates the maximum value of the reliability coefficient of historical welding personnel, Indicates the minimum value of the historical welding personnel reliability coefficient.

[0016] Furthermore, when the welding operation risk index Czf exceeds When the connector welding abnormality warning is issued, represents the mean value of historical welding operation risk index, represents the variance of the historical welding operation risk index; When the welding operation risk index Czf does not exceed When the connector is soldered, it is shown that the soldering is complete.

[0017] Furthermore, after receiving the abnormal welding warning of the welding point connector, a multimeter is used to measure the current of the welding point to be tested when the connector is in operation. and voltage , and the current between the solder joint to be tested and the rest of the solder joints in the connector and voltage .

[0018] Furthermore, the current of the welding point to be tested is obtained and voltage and the current between the solder joint to be tested and the rest of the solder joints in the connector and voltage , calculate the abnormal conduction coefficient Zy of the solder joint to be tested and the abnormal conduction coefficient between solder joints :

[0019] in, i Indicates the periodic detection time sequence number, i =1, 2, ..., n , j Indicates the number of the remaining solder joints of the connector. j =1、2、……、 m , Indicates the reference voltage of the solder joint to be tested. Indicates the reference value of the on-state current of the solder joint to be tested.

[0020] Furthermore, the abnormal conduction coefficient of the solder joint to be tested is obtained. Z Abnormal conductivity coefficient between solder joints , calculate the conductivity index Dtz of the solder joint to be tested:

[0021] in, Represents the mean value of the abnormal conduction coefficient of the historical solder joint itself, Represents the mean value of the abnormal conductivity coefficient between historical solder joints.

[0022] Furthermore, when the conductivity index Dtz of the solder joint to be tested exceeds When the abnormality of the connector welding conduction is detected, an early warning is issued. Represents the average value of the historical solder joint conductivity index to be tested, Represents the variance of the historical solder joint conductivity index to be tested; When the conductivity index Dtz of the solder joint to be tested does not exceed When the connector is soldered, it is shown that the soldering is complete.

[0023] A connector welding continuity test system, comprising: The welding preparation module connects the welded first end to the adapter of the adapter line, and connects the welded connector to the adapter of the slave adapter line, fixes them to the welding fixture, selects the welding point of the welded connector on the human-machine operation interface, and the welding point is highlighted; The welding operation analysis module records the voltage Dy, current Dl, pressure Ya and welding duration Sj of the welding equipment during the welding process, calculates the welding process abnormality coefficient Hy, obtains the historical welding years Nx, historical welding qualification rate Hg and welding speed Sd of the welding operator, calculates the welding operator reliability coefficient Rk, calculates the welding operation risk index Czf based on the welding process abnormality coefficient Hy and the welding operator reliability coefficient Rk, and issues an abnormal connector welding warning. The welding continuity analysis module obtains the current of the welding point to be tested after receiving the abnormal welding warning of the welding point connector and voltage and the current between the solder joint to be tested and the rest of the solder joints in the connector and voltage , calculate the abnormal conduction coefficient Zy of the solder joint to be tested and the abnormal conduction coefficient between solder joints , and further calculate the conductivity index Dtz of the solder joint to be tested, and issue an abnormal warning of connector welding conductivity.

[0024] (III) Beneficial effects The present invention provides a connector welding continuity test method and system, which has the following beneficial effects: 1. Connect the welded first end to the adapter of the adapter line, and connect the connector to be welded to the adapter of the adapter line, fix them to the welding fixture, select the welding point of the connector to be welded on the human-machine operation interface, and the welding point will be highlighted, which can more accurately locate the specific position to be welded, thus avoiding welding errors caused by misoperation.

[0025] 2. Record the voltage Dy, current Dl, pressure Ya and welding duration Sj of the welding equipment during the welding process, calculate the welding process abnormality coefficient Hy, and obtain the historical welding years Nx, historical welding qualification rate Hg and welding speed Sd of the welding operator, calculate the welding operator reliability coefficient Rk, and calculate the welding operation risk index Czf based on the welding process abnormality coefficient Hy and the welding operator reliability coefficient Rk. The benefit of issuing an abnormal warning for connector welding is that it can timely discover and warn of potential welding abnormalities, prompting operators to adjust welding parameters or methods in time, thereby improving welding quality.

[0026] 3. After receiving the abnormal welding warning of the welding point connector, obtain the current of the welding point to be tested and voltage and the current between the solder joint to be tested and the rest of the solder joints in the connector and voltage , calculate the abnormal conduction coefficient Zy of the solder joint to be tested and the abnormal conduction coefficient between solder joints , and further calculate the conductivity index Dtz of the solder joint to be tested, and issue an abnormal warning of connector welding conductivity to the outside, which can accurately evaluate the electrical connection quality of the solder joint and avoid connector failure during use, thereby improving the reliability and stability of the connector. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 A schematic diagram of a flow chart of a connector welding continuity test method of the present invention; Figure 2 The present invention is a schematic structural diagram of a connector welding continuity test system. DETAILED DESCRIPTION

[0028] 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.

[0029] See also Figure 1 The present invention provides a connector welding continuity test method and system, comprising the following steps: Step 1: Connect the welded first end to the adapter of the adapter line, and connect the welded connector to the adapter of the slave adapter line, fix them to the welding fixture, select the welding point of the welded connector on the human-machine operation interface, and the welding point will be highlighted.

[0030] The step 1 includes the following contents: Step 101: Import electrical data into the host, including the electrical relationship of the cable, the port code, the color of the cable, and the position of the connector solder pins.

[0031] Step 102, connect the welded first end to the adapter of the adapter line, and connect the welded connector to the adapter of the slave adapter line, fix them to the welding fixture, select the welding point of the welded connector in the human-machine operation interface, and the welding point is highlighted.

[0032] When using, combine the contents in steps 101 and 102: Connect the welded first end to the adapter of the adapter line, and connect the connector to be welded to the adapter of the slave adapter line, fix them to the welding fixture, select the welding point of the connector to be welded on the human-machine operation interface, and the welding point will be highlighted, which can more accurately locate the specific position that needs to be welded, thereby avoiding welding errors caused by misoperation.

[0033] Step 2. Record the voltage Dy, current Dl, pressure Ya and welding duration Sj of the welding equipment during the welding process, calculate the welding process abnormality coefficient Hy, and obtain the historical welding years Nx, historical welding qualification rate Hg and welding speed Sd of the welding operator, calculate the welding operator reliability coefficient Rk, and calculate the welding operation risk index Czf based on the welding process abnormality coefficient Hy and the welding operator reliability coefficient Rk, and issue an abnormal connector welding warning.

[0034] The step 2 includes the following contents: Step 201, connect the PLC to the welding equipment, record the voltage Dy, current Dl, pressure Ya and welding duration Sj of the welding equipment during the welding process, and calculate the abnormal coefficient Hy of the welding process:

[0035] in, Indicates the welding voltage reference value, Indicates the welding current reference value, Indicates the reference value of welding duration. Indicates the welding pressure reference value.

[0036] Step 202: Obtain the welding operator's historical welding years Nx, historical welding qualification rate Hg and welding speed Sd according to the welding operator's work record, and calculate the welding operator reliability coefficient Rk:

[0037] Among them, welding speed refers to the amount of welding work completed by the operator in unit time.

[0038] Step 203, obtain the welding process abnormality coefficient Hy and the welding personnel reliability coefficient Rk, and calculate the welding operation risk index Czf:

[0039] in, Indicates the maximum value of the abnormal coefficient of the historical welding process. Indicates the minimum value of the abnormal coefficient of the historical welding process, Indicates the maximum value of the reliability coefficient of historical welding personnel, Indicates the minimum value of the historical welding personnel reliability coefficient.

[0040] Step 204: When the welding operation risk index Czf exceeds When the connector welding abnormality warning is issued, represents the mean value of historical welding operation risk index, Represents the variance of the historical welding operation risk index.

[0041] When the welding operation risk index Czf does not exceed When the connector is soldered, it is shown that the soldering is complete.

[0042] When using, combine the contents in steps 201 to 204: The voltage Dy, current Dl, pressure Ya and welding duration Sj of the welding equipment during the welding process are recorded, the welding process abnormality coefficient Hy is calculated, and the historical welding years Nx, historical welding qualification rate Hg and welding speed Sd of the welding operator are obtained, and the welding operator reliability coefficient Rk is calculated. Based on the welding process abnormality coefficient Hy and the welding operator reliability coefficient Rk, the welding operation risk index Czf is calculated. The benefit of issuing an abnormal warning for connector welding is that potential welding abnormalities can be discovered and warned in time, prompting the operator to adjust the welding parameters or methods in time, thereby improving the welding quality.

[0043] Step 3: After receiving the abnormal welding warning of the welding point connector, obtain the current of the welding point to be tested and voltage and the current between the solder joint to be tested and the rest of the solder joints in the connector and voltage , calculate the abnormal conduction coefficient Zy of the solder joint to be tested and the abnormal conduction coefficient between solder joints , and further calculate the conductivity index Dtz of the solder joint to be tested, and issue an abnormal warning of connector welding conductivity.

[0044] Step 301: After receiving the abnormal welding warning of the welding point connector, use a multimeter to measure the current of the welding point to be tested when the connector is in operation. and voltage , and the current between the solder joint to be tested and the rest of the solder joints in the connector and voltage .

[0045] Step 302: Obtain the current of the welding point to be tested and voltage and the current between the solder joint to be tested and the rest of the solder joints in the connector and voltage , calculate the abnormal conduction coefficient Zy of the solder joint to be tested and the abnormal conduction coefficient between solder joints :

[0046] in, i Indicates the periodic detection time sequence number, i =1、2、……、 n , j Indicates the number of the remaining solder joints of the connector. j =1, 2, ..., m , Indicates the reference voltage of the solder joint to be tested. Indicates the reference value of the on-state current of the solder joint to be tested.

[0047] Step 303: Obtain the abnormal conduction coefficient of the solder joint to be tested Z Abnormal conductivity coefficient between solder joints , calculate the conductivity index Dtz of the solder joint to be tested:

[0048] in, Represents the mean value of the abnormal conduction coefficient of the historical solder joint itself, Represents the mean value of the abnormal conductivity coefficient between historical solder joints.

[0049] Step 304: When the conduction index Dtz of the solder joint to be tested exceeds When the abnormality of the connector welding conduction is detected, an early warning is issued. Represents the average value of the historical solder joint conductivity index to be tested, It represents the variance of the historical conductivity index of the solder joint to be tested.

[0050] When the conductivity index Dtz of the solder joint to be tested does not exceed When the connector is soldered, it is shown that the soldering is complete.

[0051] When used, combine the contents in steps 301 to 304: After receiving the abnormal welding warning of the welding point connector, obtain the current of the welding point to be tested and voltage and the current between the solder joint to be tested and the rest of the solder joints in the connector and voltage , calculate the abnormal conduction coefficient Zy of the solder joint to be tested and the abnormal conduction coefficient between solder joints , and further calculate the conductivity index Dtz of the solder joint to be tested, and issue an abnormal warning of connector welding conductivity to the outside, which can accurately evaluate the electrical connection quality of the solder joint and avoid connector failure during use, thereby improving the reliability and stability of the connector.

[0052] See also Figure 2 The present invention provides a connector welding continuity test system, comprising: The welding preparation module connects the already welded first end to the adapter of the adapter line, and connects the connector to be welded to the adapter of the slave adapter line, fixes them to the welding fixture, selects the welding point of the connector to be welded on the human-machine operation interface, and the welding point is highlighted.

[0053] The welding operation analysis module records the voltage Dy, current Dl, pressure Ya and welding duration Sj of the welding equipment during the welding process, calculates the welding process abnormality coefficient Hy, and obtains the historical welding years Nx, historical welding qualification rate Hg and welding speed Sd of the welding operator, calculates the welding operator reliability coefficient Rk, and calculates the welding operation risk index Czf based on the welding process abnormality coefficient Hy and the welding operator reliability coefficient Rk, and issues an abnormal connector welding warning.

[0054] The welding continuity analysis module obtains the current of the welding point to be tested after receiving the abnormal welding warning of the welding point connector and voltage and the current between the solder joint to be tested and the rest of the solder joints in the connector and voltage , calculate the abnormal conduction coefficient Zy of the solder joint to be tested and the abnormal conduction coefficient between solder joints , and further calculate the conductivity index Dtz of the solder joint to be tested, and issue an abnormal warning of connector welding conductivity.

[0055] The above embodiments may be implemented in whole or in part by software, hardware, firmware or any other combination thereof. When implemented using software, the above embodiments may be implemented in whole or in part in the form of a computer program product. A person of ordinary skill in the art may appreciate that the units and algorithm steps of each example described in conjunction with the embodiments disclosed herein may be implemented in electronic hardware, or in a combination of computer software and electronic hardware. Whether these functions are performed in hardware or software depends on the specific application and design constraints of the technical solution.

[0056] The units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.

[0057] The above description is only a specific implementation manner of the present application, but the protection scope of the present application is not limited thereto. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed in the present application, which should be included in the protection scope of the present application.

Claims

1. A connector welding continuity test method, characterized in that: The steps include: Connect the welded first end to the adapter of the adapter line, and connect the welded connector to the adapter of the slave adapter line, fix them to the welding fixture, select the welding point of the welded connector on the human-machine operation interface, and the welding point is highlighted; Record the voltage Dy, current Dl, pressure Ya and welding duration Sj of the welding equipment during the welding process, calculate the welding process abnormality coefficient Hy, obtain the historical welding years Nx, historical welding qualification rate Hg and welding speed Sd of the welding operator, calculate the welding operator reliability coefficient Rk, calculate the welding operation risk index Czf based on the welding process abnormality coefficient Hy and the welding operator reliability coefficient Rk, and issue an abnormal connector welding warning; When the welding operation risk index Czf exceeds When the connector welding abnormality warning is issued, represents the mean value of historical welding operation risk index, represents the variance of the historical welding operation risk index; When the welding operation risk index Czf does not exceed When the connector is connected by welding, it is shown that the welding point of the connector is completed; After receiving the abnormal welding warning of the welding point connector, obtain the current of the welding point to be tested and voltage and the current between the solder joint to be tested and the rest of the solder joints in the connector and voltage , calculate the abnormal conduction coefficient Zy of the solder joint to be tested and the abnormal conduction coefficient between solder joints , and further calculate the conductivity index Dtz of the solder joint to be tested, and issue an abnormal warning of connector welding conductivity; When the conductivity index Dtz of the solder joint to be tested exceeds When the abnormality of the connector welding conduction is detected, an early warning is issued. Represents the average value of the historical solder joint conductivity index to be tested, Represents the variance of the historical solder joint conductivity index to be tested; When the conductivity index Dtz of the solder joint to be tested does not exceed When the connector is soldered, it is shown that the soldering is complete.

2. A connector welding continuity test method according to claim 1, characterized in that: Connect the PLC to the welding equipment, record the voltage Dy, current Dl, pressure Ya and welding duration Sj of the welding equipment during the welding process, and calculate the abnormal coefficient Hy of the welding process: in, Indicates the welding voltage reference value, Indicates the welding current reference value, Indicates the reference value of welding duration. Indicates the welding pressure reference value.

3. A connector welding continuity test method according to claim 1, characterized in that: According to the welding operator's work record, the welding operator's historical welding years Nx, historical welding qualification rate Hg and welding speed Sd are obtained, and the welding operator's reliability coefficient Rk is calculated: Among them, welding speed refers to the amount of welding work completed by the operator in unit time.

4. A connector welding continuity test method according to claim 3, characterized in that: Obtain the welding process abnormality coefficient Hy and the welding personnel reliability coefficient Rk, and calculate the welding operation risk index Czf: in, Indicates the maximum value of the abnormal coefficient of the historical welding process. Indicates the minimum value of the abnormal coefficient of the historical welding process, Indicates the maximum value of the reliability coefficient of historical welding personnel, Indicates the minimum value of the historical welding personnel reliability coefficient.

5. A connector welding continuity test method according to claim 1, characterized in that: Get the current of the welding point to be tested and voltage and the current between the solder joint to be tested and the rest of the solder joints in the connector and voltage , calculate the abnormal conduction coefficient Zy of the solder joint to be tested and the abnormal conduction coefficient between solder joints : in, i Indicates the periodic detection time sequence number, i =1、2、……、 n , j Indicates the number of the remaining solder joints of the connector. j =1、2、……、 m , Indicates the reference voltage of the solder joint to be tested. Indicates the reference value of the on-state current of the solder joint to be tested.

6. A connector welding continuity test method according to claim 5, characterized in that: Get the abnormal conduction coefficient of the solder joint to be tested Z Abnormal conductivity coefficient between solder joints , calculate the conductivity index Dtz of the solder joint to be tested: in, Represents the mean value of the abnormal conduction coefficient of the historical solder joint itself, Represents the mean value of the abnormal conductivity coefficient between historical solder joints.

7. A connector welding continuity test system, used to implement the method according to any one of claims 1 to 6, characterized in that: include: The welding preparation module connects the welded first end to the adapter of the adapter line, and connects the welded connector to the adapter of the slave adapter line, fixes them to the welding fixture, selects the welding point of the welded connector on the human-machine operation interface, and the welding point is highlighted; The welding operation analysis module records the voltage Dy, current Dl, pressure Ya and welding duration Sj of the welding equipment during the welding process, calculates the welding process abnormality coefficient Hy, obtains the historical welding years Nx, historical welding qualification rate Hg and welding speed Sd of the welding operator, calculates the welding operator reliability coefficient Rk, calculates the welding operation risk index Czf based on the welding process abnormality coefficient Hy and the welding operator reliability coefficient Rk, and issues an abnormal connector welding warning. The welding continuity analysis module obtains the current of the welding point to be tested after receiving the abnormal welding warning of the welding point connector and voltage and the current between the solder joint to be tested and the rest of the solder joints in the connector and voltage , calculate the abnormal conduction coefficient Zy of the solder joint to be tested and the abnormal conduction coefficient between solder joints , and further calculate the conductivity index Dtz of the solder joint to be tested, and issue an abnormal warning of connector welding conductivity.

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