Connector welding thrust detection method

Abstract

The invention discloses a connector welding thrust detection method, which comprises the following steps: step 1, providing a detection system which comprises an FPC database, an FPC fixing module, a thrust test feedback module, a CPU module, a power supply module and a display module; wherein the FPC database is used for storing connector single PIN thrust requirements of each item, the FPC fixing module is used for fixing an FPC to be tested, the thrust test feedback module is used for applying thrust to each PIN of the connector and feeding back pressure data, and the CPU module is used for recording the pressure data and comparing the pressure data with the thrust requirements to output a judgment result. And the display module is used for selecting the to-be-tested item FPC and checking a judgment result. The method has the beneficial effects that the thrust value of each PIN of the connector can be confirmed, the abnormal condition of an old scheme can be effectively avoided, and the product quality is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of FPC, in particular to a connector welding thrust detection method. BACKGROUND

[0002] There are connector components on the FPC module. The existing connector welding thrust test method is to take one row of PINs of the connector as a whole to test the thrust until the thrust value at which the two rows of PINs of the connector are separated is taken as the final thrust value of the connector. The thrust standard is 0.25 kg / pin, and the number of pins is the number of functional pins in a single row of the connector, for example, for a 40-pin connector, a single row has 20 pins, and the thrust standard is 5 kg. The existing test method has the following problems: 1. unilateral thrust, the plastic part of the connector will be stressed, which will cause the thrust value to be inaccurate; 2. unilateral thrust, the two rows of PINs of the connector are unevenly stressed, and it is impossible to ensure that the thrust of each PIN meets the customer standard; 3. most of the two rows of functional PINs and the two sides of the fixed PINs are not on the same horizontal line, and when the fixed PIN is used as a signal connection, it is impossible to ensure that the thrust meets the standard.

[0003] Therefore, the prior art has defects and needs to be improved. SUMMARY

[0004] The present application aims to overcome the shortcomings of the prior art and provide a connector welding thrust detection method.

[0005] The technical scheme of the present application is as follows: the present application provides a connector welding thrust detection method, comprising the following steps: step 1: providing a detection system, the detection system comprising an FPC database, an FPC fixing module, a thrust test feedback module, a CPU module, a power supply module and a display module; wherein the FPC database is used to store the single PIN thrust requirement of the connector of each project, the FPC fixing module is used to fix the FPC to be tested, the thrust test feedback module is used to apply thrust to each PIN of the connector and feedback pressure data, the CPU module is used to record the pressure data and compare it with the thrust requirement to output a judgment result, and the display module is used to select the FPC to be tested and view the judgment result; Step 2: input the single PIN thrust requirement of the project to which the connector to be tested belongs into the detection system, and store the thrust requirement into the FPC database by the detection system; Step 3: fix the FPC to be tested by the FPC fixing module, so that the connector on the FPC is in a position to be detected; Step 4: use the probe of the thrust test feedback module to apply thrust to each PIN of the connector separately until the corresponding PIN is separated from the FPC pad; Step 5: The CPU module records the maximum thrust value detected by each probe in real time, and calls the single-pin thrust requirement stored in the FPC database to compare the maximum thrust value with the thrust requirement; Step 6: If the maximum thrust value corresponding to all pins is greater than or equal to the single pin thrust requirement, the connector is deemed to have qualified soldering thrust; if the maximum thrust value corresponding to any pin is less than the single pin thrust requirement, the connector is deemed to have unqualified soldering thrust.

[0006] Furthermore, in step 4, the thrust test feedback module is equipped with 50 independent probes on each of the left and right sides, for a total of 100 independent probes. Each probe is equipped with a pressure sensing device behind it. The pressure sensing device is electrically connected to the CPU module and can transmit the pressure data detected by the probe to the CPU module in real time.

[0007] Furthermore, in step 4, before applying a thrust to the connector pins, a standard module of the thrust test feedback module that is compatible with the spacing specification of the connector to be tested is selected, the spacing of the probes in the module is adjusted to align with the functional pins of the connector, and then the probes on both sides are manually adjusted to align with the fixed pins of the connector.

[0008] Furthermore, in step 4, the testing accuracy of each probe is 0.01N; during the process of the probe moving towards the connector pin, the pressure value detected when not in contact with the pin is 0, and the pressure value gradually increases after contact with the pin; when the pin is removed from the FPC pad, the pressure value of the corresponding probe drops sharply, the probe's propulsion mechanism stops and returns to the starting point, and the CPU module synchronously records the maximum pressure value detected by the probe.

[0009] By adopting the above solution, the beneficial effects of the present invention are: it can confirm the thrust value of each PIN of the connector, effectively avoid the abnormal situation of the old solution, and improve product quality. Detailed Implementation

[0010] The present invention will be described in detail below with reference to specific embodiments.

[0011] This invention provides a connector soldering thrust detection method, comprising: Step 1: providing a detection system, the detection system including an FPC database, an FPC fixing module, a thrust test feedback module, a CPU module, a power supply module, and a display module. The FPC database is electrically connected to the CPU module and is used to store the thrust requirements for each connector pin of various items. The FPC fixing module is used to fix the FPC to be tested. The thrust test feedback module is electrically connected to the CPU module and is used to apply thrust to each pin of the connector and feed back pressure data. The CPU module is used to record the pressure data and compare it with the thrust requirements to output a judgment result. The display module is electrically connected to the CPU module and is used to select the FPC to be tested and view the judgment result. The power supply module is electrically connected to the CPU module and is used to supply power to the detection system.

[0012] Step 2: Input the single pin thrust requirement of the connector to be tested into the testing system, and the testing system stores the thrust requirement in the FPC database.

[0013] Step 3: Fix the FPC to be tested using the FPC fixing module so that the connector on the FPC is in the position to be tested.

[0014] Step 4: Using the probe of the thrust test feedback module, apply a thrust to each pin of the connector individually until the corresponding pin is removed from the FPC pad.

[0015] Specifically, in this embodiment, the thrust test feedback module is equipped with 50 independent probes on each of the left and right sides, for a total of 100 independent probes. Each probe is equipped with a pressure sensing device behind it. The pressure sensing device is electrically connected to the CPU module and can transmit the pressure data detected by the probe to the CPU module in real time.

[0016] Before applying a thrust to the connector pins, select a standard thrust test feedback module that matches the pitch specification of the connector under test, adjust the spacing of the probes in the module to align with the functional pins of the connector, and then manually adjust the probes on both sides to align with the fixed pins of the connector.

[0017] Each probe has a testing accuracy of 0.01N. During the movement of the probe toward the connector pin, the pressure value detected is 0 when it does not contact the pin, and the pressure value gradually increases after contacting the pin. When the pin is removed from the FPC pad, the pressure value of the corresponding probe drops sharply, and the probe's propulsion mechanism stops and returns to the starting point. The CPU module synchronously records the maximum pressure value detected by the probe.

[0018] Step 5: Record the maximum thrust value detected by each probe in real time through the CPU module, and call the single-pin thrust requirement stored in the FPC database to compare the maximum thrust value with the thrust requirement; Step 6: If the maximum thrust value corresponding to all pins is greater than or equal to the single pin thrust requirement, the connector is deemed to have qualified soldering thrust; if the maximum thrust value corresponding to any pin is less than the single pin thrust requirement, the connector is deemed to have unqualified soldering thrust.

[0019] It is worth noting that with existing testing methods, when pushing the entire row of pins of the connector, there may be cases where the pins detach from the plastic instead of the solder pads, resulting in inaccurate test results. However, the testing method of this solution can completely avoid such problems and ensure accurate testing results.

[0020] In this solution, a corresponding thrust test feedback module can be manufactured according to the technical specifications of the connector (such as the pin pitch). The pin pitch of the connectors on both sides is fixed and adjusted according to the actual project. A pressure sensing device is configured behind each probe and connected to the CPU. When the probe comes into contact with a hard object, the CPU can monitor the value change of the probe in real time.

[0021] In summary, the advantages of this solution are: it can confirm the thrust value of each pin of the connector, effectively avoid the abnormal situations of the old solution, and improve product quality.

[0022] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A method for detecting the welding thrust of a connector, characterized in that, Includes the following steps: Step 1: Provide a testing system, which includes an FPC database, an FPC fixing module, a thrust test feedback module, a CPU module, a power supply module, and a display module. The FPC database stores the single-pin thrust requirements for each connector item. The FPC fixing module fixes the FPC under test. The thrust test feedback module applies thrust to each pin of the connector and feeds back pressure data. The CPU module records the pressure data and compares it with the thrust requirements to output a judgment result. The display module selects the FPC item to be tested and views the judgment result. Step 2: Input the single-pin thrust requirement of the connector to be tested into the testing system. The testing system stores the thrust requirement in the FPC database. Step 3: Step 4: Fix the FPC under test using the FPC fixing module to position the connector on the FPC in the test position; Step 5: Apply a thrust to each pin of the connector individually using the probe of the thrust test feedback module until the corresponding pin is detached from the FPC pad; Step 6: Record the maximum thrust value detected by each probe in real time using the CPU module, and call the single-pin thrust requirement stored in the FPC database to compare the maximum thrust value with the thrust requirement; Step 7: If the maximum thrust value corresponding to all pins is greater than or equal to the single-pin thrust requirement, the connector is deemed to have qualified soldering thrust; if the maximum thrust value corresponding to any pin is less than the single-pin thrust requirement, the connector is deemed to have unqualified soldering thrust.

2. The connector welding thrust detection method according to claim 1, characterized in that, In step 4, the thrust test feedback module is equipped with 50 independent probes on each of the left and right sides, for a total of 100 independent probes. Each probe is equipped with a pressure sensing device behind it. The pressure sensing device is electrically connected to the CPU module and can transmit the pressure data detected by the probe to the CPU module in real time.

3. In the connector welding thrust detection method according to claim 2, in step 4, before applying thrust to the connector pin, a standard module of the thrust test feedback module adapted to the spacing specification of the connector to be tested is selected, the spacing of the probes in the module is adjusted to align with the functional pins of the connector, and then the probes on both sides are manually adjusted to align with the fixed pins of the connector.

4. The connector welding thrust detection method according to claim 2 or 3, characterized in that, In step 4, the testing accuracy of each probe is 0.01N. During the process of the probe moving towards the connector pin, the pressure value detected when it does not contact the pin is 0, and the pressure value gradually increases after contacting the pin. When the pin is removed from the FPC pad, the pressure value of the corresponding probe drops sharply, and the probe's propulsion mechanism stops and returns to the starting point. The CPU module synchronously records the maximum pressure value detected by the probe.