An electrical measuring device for a connector

Abstract

The utility model discloses a kind of electric measuring devices for connector, including electric measuring support and being positioned on its transposition component, pressure measuring component;Pressure measuring component contains hinged pressure rod, horizontally sliding cam block, upper pressure measuring cylinder, upper pressure measuring piece, vertically arranged lower pressure measuring cylinder and lower pressure measuring piece;Upper pressure measuring cylinder drives cam block horizontal feed, is pushed to pressure rod swing pressure tight connector by cam track surface, while driving upper pressure measuring piece synchronous movement contact upper terminal, lower pressure measuring cylinder drives lower pressure measuring piece to rise contact lower terminal, cooperation completes electric property detection such as conduction, withstand voltage;Transposition component uses double-station intermittent transposition design, and supporting locking component realizes rigid positioning after transposition.The utility model is integrated with the action of pressing and testing feed by cam linkage, compact structure, action synchronism is strong, and detection stability and positioning accuracy are high, applicable to connector batch electric measuring operation.

Description

Technical Field

[0001] This utility model belongs to the technical field of connector testing equipment, and in particular relates to an electrical testing device for connectors. Background Technology

[0002] After connectors are manufactured, their electrical parameters, such as conductivity and withstand voltage, need to be tested to ensure product quality. Existing electrical testing equipment typically requires first positioning and clamping the connector before conducting electrical tests by contacting the terminals with probes.

[0003] However, existing pressure testing mechanisms suffer from problems such as complex structures, poor synchronization of contact actions between upper and lower terminals, and unstable clamping force, which affect testing accuracy and efficiency. Furthermore, the transition between the testing station and the loading / unloading station for connectors often requires complex multi-axis motion mechanisms, resulting in larger equipment size and higher costs. Utility Model Content

[0004] The purpose of this invention is to provide an electrical testing device for connectors, so as to solve the technical problems of poor synchronization of voltage testing actions and complex structure in the prior art.

[0005] To achieve the above objectives, the present invention provides the following technical solution:

[0006] An electrical testing device for a connector includes an electrical testing bracket and an indexing assembly and a pressure testing assembly mounted on the electrical testing bracket. The pressure testing assembly is configured corresponding to the indexing assembly and is used to test the electrical parameters of the connector.

[0007] The pressure testing component includes:

[0008] The pressure rod is hinged to the electrical testing bracket, with one end being the driving end and the other end being the clamping end;

[0009] The cam block is slidably mounted on the electrical testing bracket, and its upper end abuts against the driving end of the pressure rod.

[0010] The upper pressure measuring cylinder has its output end connected to the cam block for driving the cam block to move horizontally in the direction of approaching or moving away from the indexing assembly;

[0011] The upper pressure testing component is fixedly installed at the end of the cam block, and moves closer to or further away from the first end of the connector as the cam block moves.

[0012] The pressure measuring cylinder is fixed to the electrical measuring bracket;

[0013] The pressure testing element is fixedly connected to the output end of the pressure testing cylinder and is used to move closer to or further away from the second end of the connector in the vertical direction.

[0014] The upper pressure testing cylinder drives the cam block to move, thereby pushing the pressure rod to rotate and press the connector, and simultaneously driving the upper pressure testing component to contact the first end of the connector, cooperating with the lower pressure testing component to complete the continuity and withstand voltage test of the connector terminals.

[0015] Furthermore, a roller is installed at the drive end of the pressure rod, and a track surface is provided at the upper end of the cam block to roll in contact with the roller;

[0016] The clamping end of the pressure rod is equipped with a buffer pad for flexibly clamping the connector to be tested.

[0017] Furthermore, a guide rail slider pair is installed on the electrical testing bracket, and the cam block and the upper pressure testing component are both fixedly installed on the slider of the guide rail slider pair.

[0018] Furthermore, the indexing assembly includes an indexing motor and a rotating component. The indexing motor is fixedly mounted on the electrical testing bracket, and the rotating component is connected to the output end of the indexing motor via a transmission connection.

[0019] The rotating component is provided with a positioning station for carrying the connector. The indexing motor drives the rotating component to rotate intermittently to index the connector to the electrical testing station corresponding to the pressure testing component.

[0020] Furthermore, the rotating component is provided with two positioning stations, which are symmetrically distributed at 180 degrees around the rotation center of the rotating component. Each time the indexing motor drives the rotating component to rotate 180 degrees, the connector at the electrical testing station and the loading / unloading station can be switched between each other.

[0021] Furthermore, the output shaft of the indexing motor is connected to the rotating component via a coupling and an intermediate shaft;

[0022] A light-blocking plate is installed on the intermediate shaft, and a sensor is installed on the electrical testing bracket at the position corresponding to the light-blocking plate for resetting the rotary motor.

[0023] Furthermore, two clamping blocks are slidably installed on each of the positioning stations, and one end of each clamping block is provided with an elastic element to elastically clamp the connector.

[0024] Furthermore, it also includes a locking assembly, which includes a locking cylinder and a locking element. The locking cylinder and the locking element are fixedly connected to drive the cylinder to rise and fall. After the rotary motor completes intermittent rotation, the locking element rises and embeds itself into the rotating element to achieve rigid locking.

[0025] Furthermore, both the upper and lower pressure testers are provided with several probes for contacting the terminals of the connector to perform continuity and withstand voltage tests on the connector.

[0026] Furthermore, the upper end of the locking member is provided with a wedge surface, and the clamping block is provided with a chamfer at one end corresponding to the locking member. When the locking member rises to lock the rotating member, the wedge surface abuts against the chamfer to push the clamping block to open against the force of the elastic member.

[0027] Compared with existing technologies, the beneficial effects of this technology are:

[0028] 1. The pressure testing assembly adopts a structure with a cam block and a pressure rod. When the upper pressure testing cylinder drives the cam block to move horizontally, on the one hand, the upper end of the cam block pushes the pressure rod to rotate, causing the clamping end to swing down and clamp the connector. On the other hand, the cam block synchronously drives the upper pressure testing piece to feed horizontally and contact the first end of the connector. At the same time, the lower pressure testing cylinder drives the lower pressure testing piece to rise and contact the second end of the connector. The entire clamping and probe feeding action is completed by a single power source. The structure is compact, the synchronization is good, and the consistency and stability of the test are guaranteed.

[0029] 2. The indexing assembly is driven by an indexing motor to rotate the rotating parts intermittently by 180 degrees. With the help of a locking cylinder, the rotating parts are precisely positioned and rigidly locked, ensuring the positional accuracy of the connector at the electrical testing station. At the same time, the loading and unloading stations can operate in parallel, improving testing efficiency.

[0030] 3. The pressure rod drive end is equipped with a roller that mates with the cam block track surface, and the clamping end is equipped with a buffer pad, which effectively reduces transmission friction, reduces impact, extends the service life of the equipment, and protects the connector under test. Attached Figure Description

[0031] The accompanying drawings described below are merely some embodiments. Those skilled in the art can obtain other drawings based on these drawings without any creative effort. In the drawings:

[0032] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the present utility model;

[0033] Figure 2 This is a schematic diagram of the structure of the transposition component in an embodiment of this utility model;

[0034] Figure 3 for Figure 2 A sectional view of the middle section of the structure;

[0035] Figure 4 This is a schematic diagram of the pressure testing component in an embodiment of the present invention.

[0036] The attached diagram lists the components represented by each number as follows:

[0037] 1. Electrical testing bracket; 2. Indexing assembly; 21. Indexing motor; 22. Coupling; 23. Intermediate shaft; 24. Rotating component; 241. Positioning station; 242. Clamping block; 2421. Chamfer; 243. Elastic component; 25. Locking assembly; 251. Locking component; 2511. Wedge surface; 252. Locking cylinder; 26. Light blocking plate; 27. Sensor; 3. Pressure testing assembly; 31. Pressure rod; 311. Roller; 312. Hinge shaft; 313. Buffer pad; 314. Drive end; 315. Clamping end; 32. Cam block; 321. Track surface; 33. Upper pressure testing cylinder; 34. Upper pressure testing component; 35. Lower pressure testing cylinder; 36. Lower pressure testing component; 37. Guide rail slider pair; 38. Probe; 4. Connector. Detailed Implementation

[0038] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present utility model.

[0039] like Figures 1 to 4 As shown, this utility model embodiment provides an electrical testing device for a connector 4, including an electrical testing bracket 1, and a rotation component 2 and a pressure testing component 3 mounted on the electrical testing bracket 1. The pressure testing component 3 is arranged on one side of the rotation component 2 and is used to test the electrical parameters of the connector 4. The other side of the rotation component 2 is arranged on an external loading and unloading component and is used to unload the tested connector 4 or load the untested connector 4.

[0040] The electrical testing bracket 1 serves as the load-bearing base for the entire device, employing an aluminum alloy profile frame or a welded steel plate structure, providing sufficient rigidity and stability. The electrical testing bracket 1 has horizontal and vertical mounting surfaces for mounting the indexing assembly 2 and the pressure testing assembly 3, respectively. The bottom of the electrical testing bracket 1 can be fitted with shock-absorbing pads or directly fixed to the frame of the automated production line.

[0041] The indexing assembly 2 includes an indexing motor 21, a coupling 22, an intermediate shaft 23, and a rotating component 24. The indexing motor 21 is vertically fixedly mounted on the electrical testing bracket 1, and its output shaft is connected to the lower end of the intermediate shaft 23 via the coupling 22. The upper end of the intermediate shaft 23 is fixedly connected to the center of the rotating component 24. The indexing motor 21 is preferably a servo motor or a stepper motor. The coupling 22 can be a lamellar coupling 22, a diaphragm coupling 22, or a rigid coupling 22, used to compensate for the coaxiality error between the motor shaft and the intermediate shaft 23 and to transmit torque.

[0042] The rotating component 24 is a square rotating plate, which is horizontally arranged above the electrical testing bracket 1. The rotating component 24 is provided with a positioning station 241 for carrying the connector 4. In this embodiment, the rotating component 24 is provided with two positioning stations 241, and the two positioning stations 241 are symmetrically distributed at 180 degrees with respect to the rotation center of the rotating component 24, respectively corresponding to the electrical testing station and the loading and unloading station.

[0043] The indexing motor 21 drives the rotating part 24 to rotate 180 degrees intermittently each time, which can switch the connector 4 between the electrical testing station and the loading / unloading station, realizing the parallel operation of testing and loading / unloading.

[0044] Two symmetrically arranged clamping blocks 242 are slidably installed on each positioning station 241. They can slide in the direction of approaching or moving away from each other. One end of the clamping block 242 is provided with an elastic element 243. In this embodiment, the elastic element 243 is a spring. The elastic force of the spring pushes the two clamping blocks 242 to clamp each other, so as to elastically hold the connector 4. This can ensure the stability of the connector 4 during the rotation process and adapt to certain dimensional tolerances, thus playing a flexible clamping role.

[0045] A light-blocking plate 26 is also fixedly installed on the intermediate shaft 23. The light-blocking plate 26 is a fan-shaped light-blocking plate with notches or light-transmitting grooves on its edges. A sensor 27 is installed on the electrical measuring bracket 1 at the position corresponding to the light-blocking plate 26. This sensor is used to reset the origin of the rotary motor 21 and ensure the accuracy of each rotation angle. In this embodiment, the sensor 27 is specifically a transmissive photoelectric sensor, including a transmitter and a receiver, which are respectively arranged on both sides of the light-blocking plate 26.

[0046] When the indexing motor 21 rotates, the light-blocking plate 26 rotates accordingly. The sensor 27 determines the rotation angle and origin position of the intermediate shaft 23 by detecting the position of the notch in the light-blocking plate 26, thereby achieving precise reset and angle feedback of the indexing motor 21.

[0047] The electrical testing device also includes a locking assembly 25 to prevent the rotating component 24 from shaking during the testing or loading / unloading process. The locking assembly 25 includes a locking cylinder 252 and a locking element 251. The locking cylinder 252 is vertically fixed to the electrical testing bracket 1 and located below the rotating component 24. Its output end is fixedly connected to the locking element 251 to drive the locking element 251 to move up and down. The locking element 251 has a columnar or wedge-shaped structure, and the lower end of the rotating component 24 has a locking groove corresponding to the position of the locking element 251. Furthermore, a support block fixed to the electrical testing bracket 1 is installed to support the sliding of the locking element 251, making the up-and-down movement of the locking element 251 smoother.

[0048] After the indexing motor 21 completes intermittent rotation, the locking component 251 rises under the drive of the locking cylinder 252 and is embedded in the pre-set locking hole at the bottom of the rotating component 24, thereby achieving rigid locking of the rotating component 24, preventing circumferential displacement during electrical testing, and ensuring test accuracy.

[0049] In this embodiment, the upper end of the locking block is symmetrically provided with inclined wedge surfaces 2511 on both sides, and a chamfer 2421 is provided on one side of the lower end of the clamping block 242. When the connector 4 needs to be loaded or unloaded, the locking member 251 rises to lock the rotating member 24, and at the same time, the inclined wedge surface 2511 on it abuts against the chamfer 2421 of the clamping block 242. Since the movement direction of the clamping block 242 and the locking member 251 is perpendicular, the vertical stress of the locking member 251 can be converted into the horizontal opening force of the clamping block 242, thereby realizing the coordination of locking and opening, and one power source completes two actions.

[0050] The pressure testing assembly 3 includes a pressure rod 31, a cam block 32, an upper pressure testing cylinder 33, an upper pressure testing component 34, a lower pressure testing cylinder 35, and a lower pressure testing component 36.

[0051] The pressure rod 31 is a long strip rod made of tool steel or aluminum alloy, with sufficient bending strength. The pressure rod 31 is hinged to the electrical test bracket 1 near its middle part through the hinge shaft 312 to form a lever structure. One end of the pressure rod 31 is the driving end 314, and the other end is the clamping end 315. The driving end 314 of the pressure rod 31 is equipped with a roller 311, which is rotatably mounted on the driving end 314 through a bearing or pin to reduce friction. The clamping end 315 is equipped with a buffer pad 313, which can be made of rubber or urethane, etc., to provide flexible buffering when clamping the connector 4 under test, so as to avoid rigid contact damage to the connector 4 housing.

[0052] The cam block 32 is slidably mounted on the electrical testing bracket 1. Specifically, the electrical testing bracket 1 is equipped with a guide rail slider pair 37. The guide rail of the guide rail slider pair 37 is fixed horizontally, and its extension direction is consistent with the driving direction of the upper pressure measuring cylinder 33. The slider is slidably engaged on the guide rail. The cam block 32 and the upper pressure measuring component 34 are both fixedly mounted on the slider, thereby ensuring that the cam block 32 and the upper pressure measuring component 34 can move stably in the horizontal direction.

[0053] The upper end of the cam block 32 is provided with a track surface 321. The main function of the track surface 321 is to drive the pressure rod 31 to rotate at a certain angle. The track surface 321 makes rolling contact with the roller 311 of the drive end 314 of the pressure rod 31, forming a rolling friction fit to reduce motion resistance. When the cam block 32 moves horizontally, the height of the track surface 321 changes, thereby pushing the roller 311 up and down, and then driving the pressure rod 31 to rotate around the hinge shaft 312.

[0054] The upper pressure measuring cylinder 33 is horizontally fixed to the electrical measuring bracket 1, and its output end is connected to the cam block 32 for driving the cam block 32 to move horizontally in the direction of approaching or moving away from the indexing assembly 2. The upper pressure measuring component 34 is fixedly installed at one end of the cam block 32 near the connector 4, and moves horizontally towards or away from the first end of the connector 4, i.e., the upper terminal of the connector 4, as the cam block 32 moves.

[0055] The pressure testing cylinder 35 is vertically fixed to the electrical testing bracket 1, with its output end facing upward and fixedly connected to the pressure testing component 36. It is used to drive the pressure testing component 36 to move closer to or further away from the second end of the connector 4, i.e. the lower terminal of the connector 4, in the vertical direction.

[0056] Both the upper pressure testing component 34 and the lower pressure testing component 36 are equipped with a number of probes 38. The probes 38 are either spring probes 38 or rigid probes 38, used to contact the terminals of the connector 4 to perform continuity and withstand voltage tests on the connector 4. Each probe 38 is electrically connected to an external testing system via a wire. The number and arrangement of the probes 38 installed on the upper pressure testing component 34 and the lower pressure testing component 36 are matched to the number and spacing of the terminals of the connector 4 under test.

[0057] The working process of this embodiment is as follows:

[0058] In the initial state, one of the positioning stations 241 of the rotating component 24 is located on the loading / unloading station side. At the same time, the locking component 251 locks the rotating component 24 and presses against the two clamping blocks 242 on it, so that it is in an open state. The external automatic feeding mechanism puts the connector 4 to be tested into the positioning station 241. The locking cylinder 252 drives the locking component 251 to move down away from the rotating component 24. The two clamping blocks 242 elastically clamp the connector 4 under the action of the elastic component 243.

[0059] Subsequently, the indexing motor 21 starts, driving the rotating component 24 to rotate 180 degrees via the coupling 22 and intermediate shaft 23, so that the connector to be tested 4 is rotated into the electrical testing station, corresponding to the pressure testing component 3; at the same time, the tested connector 4, which was originally in the electrical testing station, is indexed to the loading and unloading station. The sensor 27, in conjunction with the light-blocking plate 26, detects whether the indexing motor 21 has reached the origin, ensuring accurate indexing. Next, the locking cylinder 252 drives the locking component 251 to rise and embed into the rotating component 24, completing the rigid locking and positioning of the rotating component 24 and opening the two clamping blocks 242, so that the tested connector 4 can be clamped and unloaded.

[0060] Then, the pressure testing assembly 3 begins to operate. The upper pressure testing cylinder 33 pushes the cam block 32 horizontally forward along the guide rail slider pair 37. The track surface 321 at the upper end of the cam block 32 pushes the drive end 314 of the pressure rod 31 upward through the roller 311, causing the pressure rod 31 to rotate around the hinge shaft 312. Its pressing end 315 swings downward and flexibly presses the upper surface of the connector 4 through the buffer pad 313, thereby reliably fixing the connector 4 in the positioning station 241. While the cam block 32 moves horizontally forward, the upper pressure testing component 34 fixed to the front end of the cam block 32 moves horizontally in sync, so that the probe 38 on its lower surface contacts the upper terminal of the connector 4. At the same time, the lower pressure testing cylinder 35 drives the lower pressure testing component 36 to rise vertically, so that the probe 38 on its upper surface contacts the lower terminal of the connector 4. At this point, the connector 4 is pressed and both the upper and lower terminals are in good contact with the probe 38, and the external testing system can then perform electrical parameter tests such as continuity and withstand voltage on the connector 4.

[0061] After the test is completed, the upper pressure testing cylinder 33 drives the cam block 32 and the upper pressure testing component 34 to move backward horizontally to reset. The pressure rod 31 swings back under its own weight or the action of the reset spring, and the clamping end 315 releases the connector 4. The lower pressure testing cylinder 35 drives the lower pressure testing component 36 to descend and reset. The locking cylinder 252 drives the locking component 251 to descend and exit the rotating component 24. Then the indexing motor 21 drives the rotating component 24 to rotate again. The connector 4 that has been tested is sent back to the loading and unloading station for unloading. At the same time, the next connector 4 to be tested enters the electrical testing station to start a new test cycle.

[0062] In this embodiment, the pressure testing assembly 3, driven by a single power source—the upper pressure testing cylinder 33—simultaneously drives the pressure rod 31 to press against the connector 4 and the upper pressure testing component 34 to feed into contact with the upper terminal. This, combined with the independent vertical lifting action of the lower pressure testing component 36, achieves precise synchronous testing of the connector 4 terminals. The rolling engagement of the cam block 32 and the roller 311, the buffer pad 313 of the pressing end 315, and the guiding of the guide rail slider pair 37 together ensure the smoothness and reliability of the operation. The indexing assembly 2, through intermittent rotation and rigid locking with the locking assembly 25, ensures positioning accuracy and testing efficiency.

[0063] The embodiments described above merely illustrate the implementation of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. An electrical testing device for a connector, characterized in that, It includes an electrical testing bracket and an indexing assembly and a pressure testing assembly mounted on the electrical testing bracket. The pressure testing assembly is configured corresponding to the indexing assembly and is used to test the electrical parameters of the connector. The pressure testing component includes: The pressure rod is hinged to the electrical testing bracket, with one end being the driving end and the other end being the clamping end; The cam block is slidably mounted on the electrical testing bracket, and its upper end abuts against the driving end of the pressure rod. The upper pressure measuring cylinder has its output end connected to the cam block for driving the cam block to move horizontally in the direction of approaching or moving away from the indexing assembly; The upper pressure testing component is fixedly installed at the end of the cam block, and moves closer to or further away from the first end of the connector as the cam block moves. The pressure measuring cylinder is fixed to the electrical measuring bracket; The pressure testing element is fixedly connected to the output end of the pressure testing cylinder and is used to move closer to or further away from the second end of the connector in the vertical direction. The upper pressure testing cylinder drives the cam block to move, thereby pushing the pressure rod to rotate and press the connector, and simultaneously driving the upper pressure testing component to contact the first end of the connector, cooperating with the lower pressure testing component to complete the continuity and withstand voltage test of the connector terminals.

2. The electrical testing device for a connector according to claim 1, characterized in that, The driving end of the pressure rod is equipped with a roller, and the upper end of the cam block is provided with a track surface that rolls and contacts the roller; The clamping end of the pressure rod is equipped with a buffer pad for flexibly clamping the connector to be tested.

3. The electrical testing device for a connector according to claim 1, characterized in that, The electrical testing bracket is equipped with a guide rail slider pair, and the cam block and the upper pressure testing component are both fixedly installed on the slider of the guide rail slider pair.

4. The electrical testing device for a connector according to claim 1, characterized in that, The indexing assembly includes an indexing motor and a rotating component. The indexing motor is fixedly installed on the electrical testing bracket, and the rotating component is connected to the output end of the indexing motor. The rotating component is provided with a positioning station for carrying the connector. The indexing motor drives the rotating component to rotate intermittently to index the connector to the electrical testing station corresponding to the pressure testing component.

5. The electrical testing device for a connector according to claim 4, characterized in that, The rotating component is provided with two positioning stations, which are symmetrically distributed at 180 degrees around the rotation center of the rotating component. Each time the indexing motor drives the rotating component to rotate 180 degrees, the connector at the electrical testing station and the loading / unloading station can be switched between each other.

6. The electrical testing device for a connector according to claim 4, characterized in that, The output shaft of the indexing motor is connected to the rotating component via a coupling and an intermediate shaft. A light-blocking plate is installed on the intermediate shaft, and a sensor is installed on the electrical testing bracket at the position corresponding to the light-blocking plate for resetting the rotary motor.

7. The electrical testing device for a connector according to claim 4, characterized in that, Two clamping blocks are slidably installed on each of the positioning stations, and one end of each clamping block is provided with an elastic element to elastically clamp the connector.

8. The electrical testing device for a connector according to claim 7, characterized in that, It also includes a locking assembly, which includes a locking cylinder and a locking element. The locking cylinder and the locking element are fixedly connected to drive the cylinder to rise and fall. When the rotary motor completes intermittent rotation, the locking element rises and embeds itself into the rotating element to achieve rigid locking.

9. The electrical testing device for a connector according to claim 1, characterized in that, Both the upper and lower pressure testers are equipped with several probes for contacting the terminals of the connector to perform continuity and withstand voltage tests on the connector.

10. The electrical testing device for a connector according to claim 8, characterized in that, The upper end of the locking member is provided with a wedge surface, and the clamping block is provided with a chamfer at one end corresponding to the locking member. When the locking member rises to lock the rotating member, the wedge surface abuts against the chamfer to push the clamping block to open against the force of the elastic member.

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