Conduction tester of wire harness connector

Abstract

The invention provides a conduction tester for a wire harness connector, and particularly relates to the technical field of electrical testing of connectors, the conduction tester comprises a testing table plate and a tester body mounted on the top surface of the testing table plate, one side of the tester body is provided with an accommodating cabin, and one side of the tester body is provided with a display and a main controller; according to the conduction tester of the wiring harness connector, the limiting sliding block is stably matched with the limiting sliding rail on the cabin wall of the containing cabin, the probe seat can be accurately aligned with the connector in the clamping groove seat through the servo air cylinder, the probability of poor contact caused by manual insertion is greatly reduced, it is guaranteed that the test is smoothly carried out, and meanwhile the testing efficiency is improved. Through the cooperation of the pressure sensing part, the main controller and the force value regulator, the driving force of the linear driving part can be kept in a proper range, and the stable contact state of the probe and the connector is ensured, so that the test result is more reliable, and the test error caused by the contact problem is reduced.

Description

TECHNICAL FIELD

[0001] The application provides a wire harness connector conduction tester, and particularly relates to the technical field of connector electrical testing. BACKGROUND

[0002] The wire harness connector is also called as an electrical connector or a plug-in connector. The test principle of the wire harness connector conduction test is based on the conduction state in the circuit, that is, when there is a connected path in the circuit, the current can flow through the path to form a conduction state; otherwise, when there is a disconnected or open circuit in the path, the current cannot flow to form an open circuit state. During the specific test, the conduction state in the circuit is detected by applying voltage or current, so as to determine the connection condition of the circuit.

[0003] In the current wire harness connector conduction test field, the traditional equipment has significant defects in the docking accuracy and force value control. In the prior art, the docking of the test probe and the connector depends on manual auxiliary positioning or simple mechanical guidance. The poor contact is often caused by the shaking of the moving parts and the positioning deviation, and the single test needs to be repeatedly adjusted, which is low in efficiency. Meanwhile, the driving part lacks real-time feedback regulation, and the virtual connection is caused by insufficient pushing force, or the connector pin or the probe is damaged due to excessive pushing force, which not only increases the material loss, but also causes poor consistency of the test data, cannot meet the safety test requirements of different specifications of the connector, and seriously restricts the reliability and universality of the automatic test. Therefore, the application provides a wire harness connector conduction tester to make up for and improve the defects of the prior art. SUMMARY

[0004] In view of the defects of the prior art, the application provides a wire harness connector conduction tester, which can effectively solve the related technical problems in the background art.

[0005] To achieve the above purpose, the application is implemented by the following technical solutions: The application discloses a wire harness connector conduction tester, which comprises a test table plate and a tester body installed on the top surface of the test table plate, one side of the tester body is provided with a containing cabin, and one side of the tester body is respectively provided with a display and a main controller. The application further comprises a docking test mechanism composed of a test execution component and an adaptive adjustment component, which are jointly arranged on the test table plate and the containing cabin. The test execution component comprises a clamping groove seat for loading the connector to be tested, the clamping groove seat is fixedly arranged on the test table plate, and the position of the clamping groove seat is opposite to the containing cabin. A linear driving part is arranged in the containing cabin, a force value regulator electrically connected with the main controller is arranged on the linear driving part, a moving seat is connected to the moving end of the linear driving part, and a probe seat is connected to the side of the moving seat away from the linear driving part. The mobile base and the probe base are driven to reciprocatingly translate by the linear driving component, so that the test probe on the probe base is plugged with the connector to be tested to perform continuity test. The adaptive adjusting assembly comprises an elastic telescopic component fixedly connected to the mobile base near one side of the card slot base, an L-shaped vertical plate fixedly arranged on the top surface of the test platform and corresponding to the elastic telescopic component, and a pressure sensing component electrically connected to the main controller and fixedly arranged on the L-shaped vertical plate. The end of the elastic telescopic component is pressed against the pressure sensing component, the pressure sensing component detects the force value and feeds back to the main controller, and the main controller controls the force value adjuster to adjust the driving force of the linear driving component in real time.

[0006] Preferably, the linear driving component is a servo cylinder, the piston rod end of the servo cylinder is fixedly connected to the mobile base, and the piston rod is used to drive the mobile base and the probe base to reciprocatingly translate.

[0007] Preferably, limit sliding blocks are symmetrically arranged on the two side walls of the mobile base, and limit sliding rails are fixedly arranged on the two side walls of the cabin and in sliding cooperation with the limit sliding blocks.

[0008] Preferably, the elastic telescopic component is provided with at least two components and symmetrically arranged on the two sides of the mobile base, the elastic telescopic component comprises a sleeve shaft cylinder, a movable shaft and an internal spring, the movable shaft is movably inserted into the sleeve shaft cylinder, and the end of the movable shaft located in the sleeve shaft cylinder is elastically connected to the sleeve shaft cylinder through the internal spring.

[0009] Preferably, the pressure sensing component is a contact pressure sensor.

[0010] Preferably, the end of the movable shaft away from the sleeve shaft cylinder is provided with an elastic buffer pad.

[0011] Preferably, the composite processing mechanism cooperates with the docking test mechanism, and is arranged on the test platform and the test instrument body to clean the test probe of the probe base and recycle sundries. The composite processing mechanism comprises a processing assembly. The processing assembly comprises a vertical mounting groove arranged on the test instrument body, an electrically-controlled telescopic rod electrically connected to the main controller and fixedly connected to the inside of the vertical mounting groove, a vertical plate fixedly connected to the telescopic rod end of the electrically-controlled telescopic rod, and a bristle array arranged on the side of the vertical plate facing the mobile base. The lead of the electrically-controlled telescopic rod during extension and retraction satisfies the reciprocating friction contact between the bristle array and the test probe on the probe base.

[0012] Preferably, the bristle array is composed of several rectangularly distributed bristles, and the bristles are made of nylon.

[0013] As preferred, the composite processing mechanism further comprises a recycling assembly, which comprises an adaptive card slot opened on the test platform, and a recycling pipe is detachably connected in the adaptive card slot. The connecting part is connected with an external negative pressure dust collector, the open box is located directly below the probe seat when the probe seat returns to the initial position after completing the test, and the top of the open box is provided with an opening, and the area of the opening covers the area of the probe seat.

[0014] As preferred, the open box is in the shape of a rectangle gradually tapering from top to bottom.

[0015] Compared with the known prior art, the technical scheme provided by the application has the following beneficial effects: The on-off tester for the wire harness connector uses the limiting sliding block to cooperate with the limiting sliding rail of the cabin wall to stabilize, and uses the servo cylinder to accurately align the connector in the card slot seat, which greatly reduces the probability of poor contact caused by manual insertion, and ensures the smooth progress of the test. Meanwhile, through the cooperation of the pressure sensing part, the main controller and the force value regulator, the driving force of the linear driving part can be kept in a suitable range, ensuring the stable contact state of the probe and the connector, so that the test result is more reliable, and the test error caused by the contact problem is reduced. The card slot seat and the probe seat can be replaced, and the user can quickly replace the corresponding parts according to different types of connectors without adjusting the overall structure of the tester body, thereby expanding the application range of the equipment and reducing the cost of replacing the test equipment. The bristle array is made of nylon material, and is connected with the external negative pressure dust collector through the electric control telescopic rod, so as to form a stable negative pressure at the open box. When the bristle array cleans the test probe, the impurities falling under the action of gravity and negative pressure are quickly sucked into the open box and then into the negative pressure dust collector through the recycling pipe, so as to avoid the impurities from scattering on the test platform or inside the equipment, and prevent the impurities from affecting the equipment test after accumulation. Overall, the wire harness connector on-off tester has the following advantages: the limiting sliding block and the sliding rail are used to cooperate with the servo cylinder to drive, the docking accuracy is improved, and the poor contact is reduced; the pressure sensing part is used to control the driving force, and the test is reliable; the bristle array and the recycling assembly cooperate to solve the problems of probe cleaning and impurity pollution, and significantly improve the test efficiency and accuracy. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is a front perspective structure diagram of the application; Figure 2 It is another perspective structure diagram of the application; Figure 3 It is a partial perspective structure diagram of the related parts in the test instrument body in the cut state; Figure 4This is a partial three-dimensional structural diagram of the relevant components at the movable seat in this invention; Figure 5 This is a partial three-dimensional structural diagram of the relevant components of the movable seat from another perspective in this invention; Figure 6 For the present invention Figure 3 A magnified 3D structural diagram of a portion of point A in the middle; Figure 7 This is a partial three-dimensional structural diagram of the relevant components at the elastic telescopic component in this invention; Figure 8 For the present invention Figure 3 A magnified 3D structural diagram of a portion of point B in the middle; Figure 9 For the present invention Figure 2 A magnified 3D structural diagram of a portion of point C; Figure 10 This is a partial three-dimensional structural diagram of the relevant components in the composite processing mechanism of the present invention.

[0017] The labels in the diagram represent: 1. Test bench; 11. Test instrument body; 12. Housing chamber; 13. Display; 14. Main controller; Interoperability testing organization: Test execution components: 21. Card slot; 22. Linear drive component; 23. Moving base; 231. Limit slider; 232. Limit slide rail; 24. Probe holder; Adjustable components: 25. Elastic telescopic component; 251. Sleeve sleeve; 252. Movable shaft; 253. Built-in spring; 26. L-shaped vertical plate; 27. Pressure-sensitive component; Composite processing mechanism: Processing components: 31. Vertical mounting slot; 32. Electrically controlled telescopic rod; 33. Vertical plate; 34. Brush array; Recycling components: 35. Adaptor card slot; 36. Recycling tube; 37. Connector; 38. Open box. Detailed Implementation

[0018] The present invention will be further described below with reference to embodiments.

[0019] Example 1:

[0020] like Figures 1 to 7 As shown, a continuity tester for a wire harness connector includes a test platform 1 and a tester body 11 mounted on the top surface of the test platform 1. A receiving chamber 12 is provided on one side of the tester body 11, and a display 13 and a main controller 14 are respectively provided on one side of the tester body 11. It also includes a docking test mechanism consisting of a test execution component and an adaptation adjustment component, which are jointly set on the test platform 1 and the housing 12; The test execution assembly includes a card slot seat 21 for loading the connector to be tested. Specifically, the top of the card slot seat 21 is provided with a groove compatible with the shape of the connector to be tested, and the connector to be tested is positioned in the groove. The card slot seat 21 is fixedly arranged on the test platform 1, and the position of the card slot seat 21 is opposite to the accommodation cabin 12. The accommodation cabin 12 is provided with a linear driving component 22, and the linear driving component 22 is electrically connected to the main controller 14. The moving end of the linear driving component 22 is connected to a moving seat 23, and the side of the moving seat 23 away from the linear driving component 22 is connected to a probe seat 24 composed of a plurality of test probes. The moving seat 23 and the probe seat 24 are driven by the linear driving component 22 to reciprocate and translate, so that the probe seat 24 is matched with the connector to be tested for continuity test. In addition, the side of the probe seat 24 is connected to the test electrical system inside the test instrument body 11 through a wire. The position of the probe seat 24 corresponds to the position of the card slot seat 21, or when the connector to be tested is loaded in the groove of the card slot seat 21, the position of the probe seat 24 corresponds to the position of the connector to be tested. The connection between the card slot seat 21 and the test platform 1 is detachable through screws and threaded holes, and the connection between the probe seat 24 and the moving seat 23 is the same as above, so that different card slot seats 21 and probe seats 24 can be replaced for continuity test of different connectors. The adaptive adjustment assembly includes an elastic extension component 25 fixedly connected to the side of the moving seat 23 close to the card slot seat 21. The elastic extension component 25 is arranged at least on both sides of the moving seat 23, and the L-shaped vertical plate 26 is fixedly arranged on the top surface of the test platform 1 corresponding to the position of the elastic extension component 25. The L-shaped vertical plate 26 is fixedly installed with a pressure sensing component 27 electrically connected to the main controller 14. The end of the elastic extension component 25 close to the pressure sensing component 27 presses the pressure sensing component 27, so that the elastic extension component 25 realizes elastic buffering, and the pressure sensing component 27 detects the force value and feeds back to the main controller 14. The main controller 14 controls the force value regulator to adjust the driving force of the linear driving component 22 in real time.

[0021] In specific implementation, the linear driving component 22 is configured as a servo air cylinder, and the piston rod end of the servo air cylinder is fixedly connected to the moving seat 23. The extension and retraction of the piston rod drives the moving seat 23 and the probe seat 24 to reciprocate and translate. It is worth noting that in this embodiment, the linear driving component 22 is configured as a servo air cylinder, but it is not limited to a servo air cylinder. Other options include a linear displacement structure composed of an electric sliding rail and a sliding table, or a linear displacement structure composed of a motor, a lead screw and a nut. In specific implementation, it can be selected as needed.

[0022] Further, the two side walls of the moving seat 23 are symmetrically provided with limiting sliding blocks 231, and the cabin wall on the two sides of the accommodating cabin 12 is fixedly provided with limiting sliding rails 232 in sliding cooperation with the limiting sliding blocks 231. The cooperation of the symmetrically arranged limiting sliding blocks 231 and the limiting sliding rails 232 further improves the stability of the translation of the moving seat 23 and the probe seat 24, so as to ensure that the probe seat 24 and the connector to be tested are stably and accurately connected, and the conduction test precision is improved.

[0023] In specific implementation, the elastic telescopic component 25 includes a sleeve shaft cylinder 251, a movable shaft 252 and an embedded spring 253. The movable shaft 252 is movably inserted into the sleeve shaft cylinder 251, and the end of the movable shaft 252 located in the sleeve shaft cylinder 251 is elastically connected to the sleeve shaft cylinder 251 by the embedded spring 253. The pressure sensing component 27 is configured as a contact type pressure sensor. Specifically, during the movement of the linear driving component 22 to the probe seat 24 towards the connector to be tested, the end of the movable shaft 252 first contacts the pressure sensing component 27, at which time the probe seat 24 has not yet completed the insertion with the connector to be tested. When the probe seat 24 is inserted into the connector to be tested, the embedded spring 253 is compressed by the blocking of the pressure sensing component 27, and the movable shaft 252 is just retracted into the sleeve shaft cylinder 251.

[0024] Further, the end of the movable shaft 252 away from the sleeve shaft cylinder 251 is provided with an elastic buffer pad to avoid damaging the pressure sensing component 27 after the movable shaft 252 hard contacts the pressure sensing component 27.

[0025] In use: first, the connector to be tested is placed in the recess of the clamping groove seat 21, which is matched with the shape of the connector, and can quickly complete positioning. After starting the equipment, the linear driving component 22 in the accommodating cabin 12 starts to work, and the moving end drives the moving seat 23 and the probe seat 24 connected to the moving seat 23 to translate towards the clamping groove seat 21.

[0026] During the movement, the limiting sliding blocks 231 on the two sides of the moving seat 23 slide with the limiting sliding rails 232 of the cabin wall of the accommodating cabin 12, so as to ensure that the moving seat 23 and the probe seat 24 move stably. After the test probe on the probe seat 24 is accurately inserted into the connector to be tested in the clamping groove seat 21, the probe is connected to the test electrical system inside the tester body 11 through the wire, so as to perform the conduction test, and the test result is displayed on the display 13 in real time.

[0027] If different types of connectors need to be tested, the user can replace the corresponding clamping groove seat 21 and probe seat 24 by disassembling the screws, without adjusting other parts of the equipment, so as to improve the operation convenience.

[0028] In addition, when the linear driving component 22 drives the moving seat 23 to move towards the clamping groove seat 21, the elastic extension components 25 on both sides of the moving seat 23 will first contact the pressure components 27 on the L-shaped vertical plate 26. At this time, the probe seat 24 has not yet been connected to the connector, and as the linear driving component 22 continues to advance, the elastic extension components 25 are gradually compressed. The pressure components 27 will detect the force value transmitted by the elastic extension components 25 in real time and feed back the data to the main controller 14. According to the feedback force value, the main controller 14 adjusts the driving force of the linear driving component 22 in real time through the force value regulator. When the force value is too large, the main controller 14 controls the linear driving component 22 to reduce the pushing force to prevent the test probes on the probe seat 24 or the connector under test from being damaged due to excessive force; if the force value is within the appropriate range, the driving force is kept stable to ensure normal testing.

[0029] Embodiment Two:

[0030] As shown in Figure 1 , Figures 8 to 10 , the conduction tester for the wire harness connector further includes a composite processing mechanism arranged on the test table 1 and the tester body 11, and the composite processing mechanism includes a processing assembly. The processing assembly includes a vertical mounting groove 31 opened on the tester body 11, and an electrically controlled telescopic rod 32 electrically connected to the main controller 14 is fixedly connected inside the vertical mounting groove 31. The telescopic rod end of the electrically controlled telescopic rod 32 is fixedly connected with a vertical plate 33, and the side of the vertical plate 33 facing the moving seat 23 is provided with a bristle array 34. The bristle array 34 is composed of several rectangularly distributed bristles, and the bristles are made of nylon.

[0031] The lead of the electrically controlled telescopic rod 32 during extension satisfies the up-and-down reciprocating friction contact between the bristle array 34 and the test probes on the probe seat 24.

[0032] In use: when the conduction test is completed, the main controller 14 controls the linear driving component 22 to drive the moving seat 23 and the probe seat 24 to return to the initial position. At this time, the main controller 14 sends an instruction to the electrically controlled telescopic rod 32, and the electrically controlled telescopic rod 32 starts to work. The telescopic rod drives the vertical plate 33 and the bristle array 34 to move towards the probe seat 24 until the bristle array 34 contacts the test probes on the probe seat 24. Subsequently, the electrically controlled telescopic rod 32 drives the telescopic rod to perform up-and-down reciprocating extension and retraction, so that the bristle array 34 performs up-and-down reciprocating friction on the test probes. The nylon bristles can effectively remove the dust, oil stains and other impurities adhered to the probes, and will not cause wear to the probes. After cleaning, the electrically controlled telescopic rod 32 drives the vertical plate 33 and the bristle array 34 to reset, waiting for the next cleaning instruction. The processing assembly can ensure the cleanliness of the test probes and avoid the influence of impurities on the accuracy of subsequent conduction tests.

[0033] Embodiment Three:

[0034] As Figure 1 , Figures 8 to 10 shown in the foregoing embodiment, the composite processing mechanism of the harness connector conduction tester further comprises a recycling assembly, which comprises an adapter slot 35 formed on the test platform 1, and a recycling pipe 36 is detachably installed in the adapter slot 35. One end of the recycling pipe 36 is connected with a connecting part 37, and the other end is connected with an open box 38. The connecting part 37 is connected with an external negative pressure dust collector. The open box 38 is located directly below the initial position of the probe seat 24 after the test is completed, and the top of the open box 38 is provided with an opening, and the area of the opening covers the area of the probe seat 24.

[0035] Further, the open box 38 is in the shape of a rectangle tapering from top to bottom.

[0036] In use: during the cleaning process of the second embodiment, the recycling assembly works synchronously. The connecting part 37 is connected with the external negative pressure dust collector, and after the negative pressure dust collector is started, a negative pressure is generated at the open box 38 through the recycling pipe 36. When the bristle array 34 cleans the test probe on the probe seat 24, the impurities falling from the probe seat 24 under the action of gravity and negative pressure fall into the opening of the open box 38. Since the open box 38 is in the shape of a rectangle tapering from top to bottom, the impurities can be smoothly guided into the recycling pipe 36 and then sucked into the external negative pressure dust collector through the recycling pipe 36 for collection. The recycling assembly can timely remove the impurities generated during the cleaning process, avoid the impurities from accumulating in the equipment to affect the normal operation of the equipment or cause secondary pollution, and further ensure the stable operation of the equipment and the accuracy of the test.

[0037] The above embodiments are only used to illustrate the technical solutions of the present application, but not to limit it; although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that the technical solutions recorded in the foregoing embodiments can be modified, or some technical features can be replaced by equivalent ones; and these modifications or replacements will not change the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

1. A continuity tester for wire harness connectors, comprising a test platform (1) and a tester body (11) mounted on the top surface of the test platform (1), characterized in that, The tester body (11) has a housing (12) on one side, and a display (13) and a main controller (14) are respectively provided on one side of the tester body (11). It also includes a docking test mechanism consisting of a test execution component and an adaptation adjustment component, which are set together on the test platform (1) and the housing (12); The test execution component includes a slot (21) for loading the connector under test. The slot (21) is fixed on the test bench (1) and the slot (21) is positioned directly opposite the receiving chamber (12). The receiving chamber (12) is equipped with a linear drive component (22). The linear drive component (22) is equipped with a force regulator that is electrically connected to the main controller (14). The moving end of the linear drive component (22) is connected to a moving seat (23). The side of the moving seat (23) away from the linear drive component (22) is connected to a probe seat (24). The linear drive component (22) drives the moving base (23) and probe base (24) to reciprocate and translate, so that the test probe on the probe base (24) can be inserted into the connector under test for continuity testing. The adaptive adjustment component includes an elastic telescopic component (25) fixedly connected to the side of the movable seat (23) near the slot seat (21), and an L-shaped upright plate (26) fixedly provided on the top surface of the test platform (1) at a position corresponding to the elastic telescopic component (25). A pressure-sensitive component (27) electrically connected to the main controller (14) is fixedly installed on the L-shaped upright plate (26). The end of the elastic telescopic component (25) presses against the pressure-sensitive component (27), and the pressure-sensitive component (27) detects the force value and feeds it back to the main controller (14). The main controller (14) controls the force value regulator to adjust the driving force of the linear drive component (22) in real time.

2. The continuity tester for wire harness connectors according to claim 1, characterized in that, The linear drive component (22) is configured as a servo cylinder. The piston rod end of the servo cylinder is fixedly connected to the moving seat (23). The extension and retraction of the piston rod drives the moving seat (23) and the probe seat (24) to reciprocate.

3. The continuity tester for wire harness connectors according to claim 1, characterized in that, The outer walls of the movable seat (23) are symmetrically provided with limiting sliders (231), and the walls of the accommodating compartment (12) are fixed with limiting slide rails (232) that slide in cooperation with the limiting sliders (231).

4. The continuity tester for wire harness connectors according to claim 1, characterized in that, At least two elastic telescopic components (25) are provided and symmetrically distributed on both sides of the movable seat (23). The elastic telescopic component (25) includes a sleeve cylinder (251), a movable shaft (252), and a built-in spring (253). The movable shaft (252) is movably inserted into the sleeve cylinder (251), and the end of the movable shaft (252) located in the sleeve cylinder (251) is elastically connected to the sleeve cylinder (251) through the built-in spring (253).

5. The continuity tester for wire harness connectors according to claim 1, characterized in that, The pressure-sensitive component (27) is configured as a contact pressure sensor.

6. The continuity tester for wire harness connectors according to claim 4 or 5, characterized in that, An elastic buffer pad is provided at the end of the movable shaft (252) away from the sleeve (251).

7. The continuity tester for wire harness connectors according to claim 1, characterized in that, It also includes a composite processing mechanism that works in conjunction with the docking testing mechanism. It is set on the test platform (1) and the test instrument body (11) to clean the test probes of the probe holder (24) and recycle debris. The composite processing mechanism includes processing components; The processing component includes a vertical mounting slot (31) on the tester body (11), an electrically controlled telescopic rod (32) that is electrically connected to the main controller (14) is fixedly connected inside the vertical mounting slot (31), a vertical plate (33) is fixedly connected to the telescopic rod end of the electrically controlled telescopic rod (32), and a brush array (34) is provided on the side of the vertical plate (33) facing the moving seat (23). The lead of the electrically controlled telescopic rod (32) during extension and retraction satisfies the reciprocating frictional contact between the brush array (34) and the test probe on the probe holder (24).

8. The continuity tester for wire harness connectors according to claim 7, characterized in that, The bristle array (34) consists of several rectangularly distributed bristles made of nylon.

9. The continuity tester for wire harness connectors according to claim 7, characterized in that, The composite processing mechanism also includes a recycling component, which includes an adapter slot (35) opened on the test platform (1), a recycling tube (36) is snapped into the adapter slot (35), one end of the recycling tube (36) is connected to a connecting part (37), and the other end is connected to an open box (38). The connecting part (37) is connected to the external negative pressure dust collector; the open box (38) is located directly below the probe seat (24) after the test is completed and it returns to the initial position, and its top is open, and the area of ​​the open covers the area of ​​the probe seat (24).

10. The continuity tester for wire harness connectors according to claim 9, characterized in that, The open box (38) is a rectangular shape that gradually narrows from top to bottom.

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