Crimping pin cable testing device and method for high-frequency contact crimping pin

Abstract

The invention relates to a high-frequency contact crimping pin cable testing device and method. A detected object is connected into the control module through the switching module, and the control board card and a control program thereof are used for detecting the conduction relation, the assembly position and the shielding layer processing quality of the pin in the No.8 high-frequency contact piece one by one. The detection result is visually displayed and interpreted through the light emitting result of the light emitting LED. The method has the characteristics of rapid detection and visual interpretation, the detection time is shortened, the detection difficulty is reduced, the line mixing position can be accurately judged once line mixing occurs, and wrong detection and missing detection are avoided. Meanwhile, whether the working state of the device is normal or not can be automatically detected before testing, and it is guaranteed that the device does not have misjudgment. And meanwhile, a light lithium battery is used as a power supply, so that the adaptability of the device in a use scene is greatly improved.

Description

Technical Field

[0001] The invention relates to a No. 8 high-frequency contact crimping pin crimping pin cable testing device, belonging to the field of electronic product cable testing. Background Art

[0002] The use of No. 8 high-frequency contact crimping pins in aerospace cable products is increasing. The existing methods involved in the detection stage of the No. 8 high-frequency contact cable production link mainly include manual testing methods and imported equipment testing methods. Among them, the manual testing method mainly uses a point-by-point measurement mode for multiple personnel to detect, which has low work efficiency and cannot meet the daily growing production needs. At the same time, the introduction of human factors has led to a surge in uncertainties in the quality detection of No. 8 high-frequency contact cables. The imported equipment detection is mainly to test the path relationship between the twisted pair and the No. 8 crimping pin by selecting the corresponding adapter, which can meet the test needs to a certain extent. However, the equipment can only be used for the path relationship test between the twisted pair and the No. 8 crimping pin, and cannot be used to test whether the shielded wire is connected to the shell or the wire is damaged. The test coverage cannot fully meet the detection requirements. At the same time, the test results are data, which require secondary manual interpretation before a specific test conclusion can be drawn, and comprehensive automated detection has not been fully realized. Summary of the invention

[0003] The technical problem solved by the present application is: to overcome the deficiencies of the prior art and provide a No. 8 high-frequency contact crimping pin crimping pin cable testing device, to achieve accurate detection of the path condition and shielding treatment condition of the No. 8 high-frequency contact crimping pin crimping pin, to improve the product quality of the No. 8 high-frequency contact crimping pin crimping pin, to avoid the risk of human error and to improve the detection efficiency.

[0004] The technical solutions provided by this application are as follows:

[0005] A high-frequency contact crimping pin cable testing device, characterized in that it includes a switching module, a control module, a result judgment module and a power module; at least one end of the tested cable is connected to the contact, so as to detect each contact point of the contact;

[0006] A power module is used to supply power to the transfer module, the control module, the result reading module and the tested cable;

[0007] A switching module, used for connecting the tested cable to the loop formed by the control module, the result interpretation module and the power module;

[0008] A control module, used to switch different contact points of the contact piece into the circuit;

[0009] The result judgment module displays the detection result of the corresponding contact according to the contact connected to the circuit by the control module.

[0010] The tested cable includes a plurality of conducting wires, which correspond to and are connected to the contacts of the contact piece one by one; the control module, the power module and the result judgment module are all arranged on the main line, and the switching module connects the tested cable to both ends of the main line to form a loop.

[0011] The control module includes multiple control branches, each of which is connected to a switch Ki, i being no less than the number of contact points to be tested of the contactor, and each switch Ki corresponds one-to-one to a contact point of the contactor.

[0012] The result interpretation module comprises multiple interpretation branches, each of which is connected to a resistor and an indicator light Li, and each switch Ki corresponds to the indicator light Li one by one.

[0013] The switching module includes a path test switching cable and / or a shielded test switching cable;

[0014] For a tested cable with one end connected to a contact, or for a tested cable with both ends connected to contacts for shielding test, one end of the shielding test adapter cable is connected to one end of the main line, and the other end is connected to the shielding layer of the tested cable; one end of the path test adapter cable is connected to the other end of the main line, and the other end is connected to a contact;

[0015] For a cable under test with contacts connected at both ends, the two ends of the cable under test are end A and end B respectively. One end of a path test adapter cable is connected to the end of the main line, and the other end is connected to the contact connected to end A; one end of another path test adapter cable is connected to the end of the main line, and the other end is connected to the contact connected to end B.

[0016] A method for testing a high-frequency contact crimping pin and a crimping pin cable is provided, using any of the above-mentioned high-frequency contact crimping pin and crimping pin cable testing devices for testing, comprising:

[0017] Perform a shielding test between the shielding layer of the tested cable and each contact point of the contact piece to obtain a shielding test result;

[0018] If the shielding test result is normal, a continuity test is performed on each contact point of the contact piece connected to the tested cable to obtain a continuity test result.

[0019] For the cable under test whose one end is connected to contact No. 8 or whose two ends are connected to contact No. 8, when performing shielding test, the connection method is: one end of the shielding test adapter cable is connected to the end of the main line, and the other end is connected to the shielding layer of the cable under test; one end of the path test adapter cable is connected to the end of the main line, and the other end is connected to a contact to be tested;

[0020] The test steps are: close switch K1, switch K2, and so on, switch Ki in sequence;

[0021] The shielding test result is: when the switch Kx is closed, x∈[1, i], the corresponding indicator light Lx will not light up, indicating that there is no short circuit between the first contact of the contact and the shielding layer. If the corresponding indicator light Lx lights up, it means that the first contact of the contact and the shielding layer are short-circuited.

[0022] For the cable under test whose one end is connected to the contact piece, when conducting a path test, the connection method is: one end of the shielded test adapter cable is connected to the end of the main line, and the other end is connected to the shielding layer of the cable under test; one end of the path test adapter cable is connected to the end of the main line, and the other end is connected to the contact piece;

[0023] During the continuity test, use a shorting tool to short-circuit the first contact of the contact and the shielding layer, and close switches K1, K2, and Ki in sequence;

[0024] The result of the path test is: when the switch Kx is closed, x∈[1, i], the corresponding indicator light Lx lights up, indicating that the xth contact of the contact is normal; if the corresponding indicator light Lx does not light up, it means that the xth contact of the contact is mixed with other contacts of the contact. At this time, continue to close other switches in sequence until the switch Ky is closed, y∈[1, i] and y≠x. If the corresponding indicator light Ly lights up, the xth contact of the contact is mixed with the yth contact of the contact.

[0025] For the cable under test with contacts connected at both ends, when conducting the path measurement, the connection method is as follows: the two ends of the cable under test are respectively end A and end B, one end of a path test adapter cable is connected to the end of the main line, and the other end is connected to the contact connected to the A end; one end of another path test adapter cable is connected to the end of the main line, and the other end is connected to the contact connected to the B end;

[0026] During the continuity test, close switch K1, switch K2, and switch Ki in sequence;

[0027] The results of the continuity test are: when the switch Kx is closed, x∈[1, i], the corresponding indicator light Lx lights up, indicating that the xth contact of the contact is normal; if the indicator light Lx is not on, but the indicator light Ly is on, it means that the xth contact and the yth contact of the contact are mixed; if the indicator light Lx and the indicator light Ly are both on, it means that there is a short circuit between the xth contact and the yth contact of the contact.

[0028] In summary, this application at least includes the following beneficial technical effects:

[0029] 1. The present invention improves the original measurement method, eliminates various artificial self-condition factors by electronicization, shortens the detection time, eliminates missed detection, and improves the accuracy of the test.

[0030] 2. The test coverage of the present invention is comprehensive, and it can not only detect whether the types of terminals in single-head and double-head No. 8 high-frequency contacts meet the passage requirements, but also detect the processing quality of the shielding layer of the No. 8 high-frequency contact.

[0031] 3. The present invention uses light-emitting LED diodes as the basis for interpreting the test results, which is intuitive and clear, eliminating the human factors that may be introduced by secondary interpretation of data reading, and greatly improving the judgment efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 This is a block diagram of the test device system of the present invention;

[0033] Figure 2 This is a schematic diagram of the shielding test principle;

[0034] Figure 3 A schematic diagram of a circuit test of a cable under test with a contact connected at one end;

[0035] Figure 4 The schematic diagram of the continuity test of the cable under test with contacts connected at both ends. DETAILED DESCRIPTION

[0036] In order to make the objectives, technical solutions and advantages of the present invention more clear, the embodiments disclosed in the present invention will be further described in detail below with reference to the accompanying drawings.

[0037] The embodiment of the present application discloses a No. 8 high-frequency contact crimping pin crimping pin cable testing device, which is used to detect the tested cable, at least one end of the tested cable is connected to the No. 8 contact, and the contact points of the No. 8 contact are connected to the wires in the cable one by one, such as Figure 1 As shown, the test device includes a switching module, a control module and a power supply module.

[0038] The object under test is connected to the control module through the adapter module, and the control module is used to detect the conductive relationship, assembly position and shielding layer processing quality of the inner pins of the No. 8 high-frequency contact.

[0039] The light-emitting LED diode is used as the basis for interpreting the test results. The test results of the test device are directly interpreted from the light emission of the light-emitting LED diode. If the test is qualified, the corresponding path qualified light will be on. If the test is unqualified, the light of this path will not be on, and the light of the abnormal path will be on.

[0040] The test device adapter module has the function of adapting to various terminal shapes.

[0041] The power module uses a rechargeable lithium battery as the power supply. The battery is supplemented under the control of the charging board. At the same time, the overcurrent protector ensures that there is no over-current damage during the testing process of the pin cable test device.

[0042] Before the test, the test program loop is closed through the adapter of the adapter module itself, and the test device self-detection is started point by point to complete the self-check of the test device of the present invention to confirm that the state is intact.

[0043] Through the adapter module, according to the characteristics of the No. 8 high-frequency contact of the object under test, such as the types of terminals corresponding to single-head and double-head, the corresponding adapter in the conversion module is selected to connect the object under test to the control module to ensure that the test program can be started in a closed loop.

[0044] Through the result interpretation module, the control board is used to test the connection relationship, assembly position, and shielding layer processing quality of the pins (i.e. contacts) in the No. 8 high-frequency contact piece one by one. The test results are intuitively displayed and interpreted through the light-emitting LED diode light results.

[0045] The adapter module includes a path test adapter cable and / or a shielded test adapter cable, one end of the shielded test adapter cable is connected to the shielding layer of the cable under test, and the other end is used to connect to one end of the main line; one end of the path test adapter cable is connected to contact No. 8, and the other end is used to connect to the other end of the main line.

[0046] The control module, power module and result interpretation module are all arranged on the main line.

[0047] The control module includes multiple control branches, each of which is connected with a switch Ki, i being the number of contact points to be tested that is not less than 8 contact pieces, and each switch Ki corresponds one-to-one to a contact point of the 8 contact piece.

[0048] The result reading module includes a resistor connected to the main circuit and an indicator light, and multiple control branches correspond to the indicator light. Figure 2 As shown, for the cable under test with one end connected to contact No. 8 or both ends connected to contact No. 8, when performing a shielding test, the connection method is as follows: one end of the shielding test adapter cable is connected to the end of the main line, and the other end is connected to the shielding layer of the cable under test; one end of the path test adapter cable is connected to the end of the main line, and the other end is connected to a contact No. 8 to be tested. Under normal circumstances, when "switch K1" is closed, the shielding test of the first contact position of contact No. 8 is performed, and the indicator light indicating "shielding abnormality" will not light up. Similarly, close each switch K1 in turn. In an abnormal situation, press "switch K1" and the indicator light will light up. At this time, the shielding is abnormal, indicating that the first contact of contact No. 8 is short-circuited with the shielding layer. And so on. Connect the path test adapter cable to each contact No. 8 to be tested, and perform the above-mentioned tests. As shown Figure 3 As shown, for a cable under test with one end connected to contact No. 8, this result judgment module is also used when conducting a path measurement.

[0049] Alternatively, the result interpretation module includes multiple interpretation branches connected to the main line, each interpretation branch is connected to a resistor and an indicator light Li, and each switch Ki corresponds to an indicator light Li. Figure 4 As shown, when the cable pair under test with both ends connected to contact piece 8 is subjected to path measurement, the result judgment module is used.

[0050] The test method is as follows:

[0051] like Figure 3 As shown, for the tested cable with one end connected to contact No. 8, when conducting the path test, the connection method is: one end of the shielded test adapter cable is connected to the end of the main line, and the other end is connected to the shielding layer of the tested cable; one end of the path test adapter cable is connected to the end of the main line, and the other end is connected to contact No. 8. First, perform the shielding test. If there is no abnormality, use a shorting tool to short-circuit the first contact of contact No. 8 and the shielding layer, and close "switch K1". If the indicator light L1 is on, it means that the first contact of contact No. 8 is normal, and so on. In the case of abnormality, close "switch K1". If the indicator light L1 is not on, it means "shielding abnormality", indicating that the first contact of contact No. 8 is mixed with the other contacts of contact No. 8. At this time, continue to close "switch K2", "switch K3"... "switch Ki" in sequence until "switch Kx" is closed, x∈[2, i]. If the corresponding indicator light Lx is on, it is found that the first contact of contact No. 8 is mixed with the xth contact of contact No. 8.

[0052] like Figure 4 As shown, for the cable under test with both ends connected to contact No. 8, when conducting the path measurement, the connection method is as follows: the two ends of the cable under test are end A and end B respectively, one end of a path test adapter cable is connected to the end of the main line, and the other end is connected to contact No. 8 connected to end A; one end of another path test adapter cable is connected to the end of the main line, and the other end is connected to contact No. 8 connected to end B. Under normal circumstances, close "switch K1", that is, indicator light L1 lights up, and so on, continue to close "switch K2", "switch K3" ... "switch Ki" in sequence. In abnormal circumstances, close "switch K1", but indicator light L2 lights up, that is, the first contact of contact No. 8 and the second contact of contact No. 8 are mixed. If "switch K1" is closed, but indicator lights L1 and L2 are both on, it means that there is a short circuit between the first contact of contact No. 8 and the second contact of contact No. 8.

[0053] The contents not described in detail in this application specification belong to the common knowledge of those skilled in the art.

[0054] The present application is described in detail above in conjunction with specific implementation methods and exemplary examples, but these descriptions cannot be understood as limiting the present application. Those skilled in the art understand that, without departing from the spirit and scope of the present application, a variety of equivalent replacements, modifications or improvements can be made to the technical solution of the present application and its implementation methods, all of which fall within the scope of the present application. The scope of protection of the present application shall be subject to the attached claims.

Claims

1. A high-frequency contact crimping pin cable testing device, characterized in that: It includes a switching module, a control module, a result reading module and a power supply module; At least one end of the tested cable is connected to a contact piece, so as to detect each contact point of the contact piece; A power module is used to supply power to the transfer module, the control module, the result reading module and the tested cable; A switching module, used for connecting the tested cable to the loop formed by the control module, the result interpretation module and the power module; A control module, used to switch different contact points of the contact piece into the circuit; The result judgment module displays the detection result of the corresponding contact according to the contact connected to the circuit by the control module.

2. A high-frequency contact crimping pin cable testing device according to claim 1, characterized in that: The tested cable includes a plurality of conducting wires, which correspond to and are connected to the contacts of the contact piece one by one; the control module, the power supply module and the result judgment module are all arranged on the main line, and the switching module connects the tested cable to both ends of the main line to form a loop.

3. A high-frequency contact crimping pin cable testing device according to claim 2, characterized in that: The control module includes multiple control branches connected to the main circuit, each control branch is connected to a switch Ki, i is not less than the number of contact points to be tested of the contactor, and each switch Ki corresponds to a contact point of the contactor one by one.

4. A high-frequency contact crimping pin cable testing device according to claim 3, characterized in that: The result interpretation module includes multiple interpretation branches connected to the main line, each interpretation branch is connected to a resistor and an indicator light Li, and each switch Ki corresponds to the indicator light Li one by one; The result judgment module is used for the continuity test of the tested cable with contacts connected at both ends; Alternatively, the result judgment module includes a resistor connected to the main circuit and an indicator light, and multiple control branches correspond to the indicator light; the result judgment module is used for shielding test and path test of the tested cable with one end connected to the contact piece.

5. A high-frequency contact crimping pin cable testing device according to claim 2, characterized in that: The switching module includes a path test switching cable and / or a shielded test switching cable; For a tested cable with one end connected to a contact, or for a tested cable with both ends connected to contacts for shielding test, one end of the shielding test adapter cable is connected to one end of the main line, and the other end is connected to the shielding layer of the tested cable; One end of the through-test adapter cable is connected to the other end of the main line, and the other end is connected to a contact; For a cable under test with contacts connected at both ends, the two ends of the cable under test are end A and end B respectively. One end of a path test adapter cable is connected to the end of the main line, and the other end is connected to the contact connected to end A; one end of another path test adapter cable is connected to the end of the main line, and the other end is connected to the contact connected to end B.

6. A method for testing high-frequency contact crimping pins and crimping pin cables, characterized in that: The test is performed using a high-frequency contact crimping pin crimping pin cable testing device as described in any one of claims 1 to 5, comprising: Perform a shielding test between the shielding layer of the tested cable and each contact point of the contact piece to obtain a shielding test result; If the shielding test result is normal, a continuity test is performed on each contact point of the contact piece connected to the tested cable to obtain a continuity test result.

7. A method for testing high-frequency contact crimping pins and crimping pin cables according to claim 6, characterized in that: For the tested cable with one end connected to contact No. 8 or both ends connected to contact No. 8, when performing shielding test, the connection method is: one end of the shielding test adapter cable is connected to the end of the main line, and the other end is connected to the shielding layer of the tested cable; Connect one end of the through-test adapter cable to the end of the main line and the other end to a contact to be tested; The test steps are: close switch K1, switch K2, and so on, switch Ki in sequence; The shielding test result is: when the switch Kx is closed, x∈[1, i], the corresponding indicator light will not light up, indicating that there is no short circuit between the first contact of the contact and the shielding layer. If the corresponding indicator light is on, it means that the first contact of the contact and the shielding layer are short-circuited.

8. A method for testing high-frequency contact crimping pins and crimping pin cables according to claim 6, characterized in that: For the cable under test whose one end is connected to the contact piece, when conducting a path test, the connection method is: one end of the shielded test adapter cable is connected to the end of the main line, and the other end is connected to the shielding layer of the cable under test; Connect one end of the through-test adapter cable to the end of the main line and the other end to the contact; During the continuity test, use a shorting tool to short-circuit the first contact of the contact and the shielding layer, and close switches K1, K2, and Ki in sequence; The result of the path test is: when the switch Kx is closed, x∈[1, i], the corresponding indicator light is on, indicating that the xth contact of the contact is normal; if the corresponding indicator light is not on, it means that the xth contact of the contact is mixed with other contacts of the contact. At this time, continue to close other switches in sequence until the switch Ky is closed, y∈[1, i] and y≠x. If the corresponding indicator light is on, the xth contact of the contact is mixed with the yth contact of the contact.

9. A method for testing high-frequency contact crimping pins and crimping pin cables according to claim 6, characterized in that: For the cable under test with contacts connected at both ends, when conducting the path measurement, the connection method is as follows: the two ends of the cable under test are respectively end A and end B, one end of a path test adapter cable is connected to the end of the main line, and the other end is connected to the contact connected to the A end; one end of another path test adapter cable is connected to the end of the main line, and the other end is connected to the contact connected to the B end; During the continuity test, close switch K1, switch K2, and switch Ki in sequence; The results of the continuity test are: when the switch Kx is closed, x∈[1, i], the corresponding indicator light Lx lights up, indicating that the xth contact of the contact is normal; if the indicator light Lx is not on, but the indicator light Ly is on, it means that the xth contact and the yth contact of the contact are mixed; if the indicator light Lx and the indicator light Ly are both on, it means that there is a short circuit between the xth contact and the yth contact of the contact.

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