Terminal on-off detection equipment

Abstract

The utility model relates to the field of terminal manufacturing, in particular to terminal on-off detection equipment. Comprising a base, and a terminal jig and a detection assembly are arranged on the base. Wherein the terminal jig is provided with a carrying cavity which is in profiling arrangement with the terminal, and the carrying cavity can be used for carrying the terminal and enabling the end part of a pin on the terminal to be exposed; the detection assembly comprises at least two groups of detection electrodes, the two groups of detection electrodes are electrically connected with the two ends of the pins respectively, one group of detection electrodes is connected with an external power supply and sends out an electric signal, and the electric signal can be transmitted to the other group of detection electrodes through the communicated pins. Precise judgment of the internal integrity of the pins is achieved through a closed-loop electric signal detection mechanism, and the problem that hidden breakage of the pins in the injection molding process is difficult to recognize through a traditional detection means is effectively solved.

Description

Technical Field

[0001] This utility model relates to the field of terminal manufacturing, and in particular to a terminal continuity testing device. Background Technology

[0002] In the field of electronic connector manufacturing, terminals are typically manufactured by injection molding metal pins to form a shell with a specific structure. In traditional injection molding, because the pins are formed by bending thin metal sheets, they are prone to latent fractures in the middle under injection pressure and temperature. Such defects cannot be effectively identified through conventional visual inspection or single-point contact testing. Existing inspection methods mostly rely on manual sampling or single-point conductivity testing.

[0003] However, the above-mentioned technologies have at least the following technical problems:

[0004] The detection efficiency is low and the false negative rate is high. Utility Model Content

[0005] The purpose of this invention is to provide a terminal continuity testing device to solve the problems of low testing efficiency and high missed detection rate in the existing manual testing technology.

[0006] The technical solution of this utility model is: a terminal continuity detection device, including a base, on which are provided:

[0007] A terminal fixture having a mounting cavity that conforms to the shape of a terminal, the mounting cavity being able to mount the terminal and expose the ends of the pins on the terminal;

[0008] The detection assembly includes at least two sets of detection electrodes, which are electrically connected to the two ends of a pin, and one set of detection electrodes is connected to an external power source and emits an electrical signal, which can be transmitted to the other set of detection electrodes through the connected pin.

[0009] Preferably, the two sets of detection electrodes are respectively mounted on the first transplanting mechanism and the second transplanting mechanism. The first transplanting mechanism and the second transplanting mechanism can respectively drive the two sets of detection electrodes to move toward the mounting cavity and electrically connect to the end of the pin.

[0010] Preferably, the first transplanting mechanism includes a fixing frame, which is fixed to the base. One end of the fixing frame away from the base is placed above the terminal fixture and a first driver is arranged in the vertical direction. A set of detection electrodes is fixed in the vertical direction to the execution end of the first driver.

[0011] Preferably, the second transplanting mechanism includes a second driver fixed vertically to the fixing frame and disposed below the terminal fixture, and a set of detection electrodes fixed vertically to the execution end of the second driver.

[0012] Preferably, the mounting cavities are arranged in a straight line along the horizontal direction on the terminal fixture in multiple ways.

[0013] Preferably, the terminal fixture is slidably connected to the base in a horizontal direction via a fixture transfer mechanism. The fixture transfer mechanism includes a transfer slide rail, which is fixed to the base, and the length direction of the transfer slide rail is parallel to the arrangement direction of the multiple mounting cavities. A transfer slider is slidably disposed on the transfer slide rail, and the terminal fixture is fixed to the transfer slider.

[0014] Compared with the prior art, the advantages of this utility model are:

[0015] (1) This application achieves accurate judgment of the internal integrity of the pin through a closed-loop electrical signal detection mechanism, which effectively solves the problem that traditional detection methods are difficult to identify hidden pin fractures during injection molding.

[0016] (2) For complex pin structures with multiple ends, by setting detection poles that match the number of pin ends, and cooperating with the first transplanting mechanism and the second transplanting mechanism, synchronous signal transmission and reception of multiple detection points can be achieved. Attached Figure Description

[0017] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0018] Figure 1 This is a structural diagram of a terminal continuity testing device according to the present invention;

[0019] Figure 2 This is a first-view structural diagram of the terminal described in this utility model;

[0020] Figure 3 This is a second-view structural diagram of the terminal described in this utility model;

[0021] Figure 4 This is a structural diagram of the detection component described in this utility model;

[0022] Figure 5 This is a structural diagram of the terminal fixture described in this utility model;

[0023] Among them: 1. Pin, 2. Base, 3. Terminal fixture, 31. Mounting cavity, 32. Bottom hole, 4. Detection component, 41. Detection electrode, 42. First transplanting mechanism, 421. First driver, 43. Second transplanting mechanism, 431. Second driver, 44. Fixture, 5. Fixture transplanting mechanism, 51. Transplanting slide rail, 52. Transplanting slider. Detailed Implementation

[0024] In the description of this application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "clockwise", "counterclockwise", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0025] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, unless otherwise stated, "a plurality of" means two or more, unless otherwise expressly defined.

[0026] The terminal described in this application is formed by injection molding one or more pins 1, such that the pins 1 are encased in a shell of a specific shape formed by injection molding. The two ends of the pin 1 are exposed to the outside of the injection-molded structure, while the middle part is encased inside the injection-molded structure.

[0027] Because pin 1 is formed by bending a very thin metal sheet, pin 1 may break in the middle during the injection molding process, and this may not be noticeable from the outside, thus causing the manufactured terminal to lose its corresponding function.

[0028] Therefore, this application sets two detection terminals to be connected to both ends of pin 1 respectively, and discharges by one of the detection terminals, and determines whether pin 1 is intact by whether the other detection terminal can receive an electrical signal.

[0029] The present invention will be further described in detail below with reference to specific embodiments:

[0030] A terminal continuity testing device includes a base 2, on which a terminal fixture 3 and a testing component 4 are disposed.

[0031] The detection component 4 includes at least two detection electrodes 41. In this application, the pin 1 has three ends, so the detection electrodes 41 are configured to correspond to the ends of the pin 1 in three ways. The three detection electrodes 41 are electrically connected to the two ends of the pin 1 respectively. One of the detection electrodes 41 is connected to the PLC control system and is set as the transmitting end, capable of emitting an electrical signal. If the pin 1 is intact and undamaged, the electrical signal can be transmitted through the pin 1 to the other two detection electrodes 41, which are the receiving ends, and received by the corresponding current detectors. Conversely, if the receiving end does not detect the corresponding electrical signal after the transmitting end outputs an electrical signal, it proves that the middle of the pin 1 is broken, forming an open circuit.

[0032] The terminal fixture 3 includes a mounting cavity 31 that conforms to the shape of the terminal. The top of the mounting cavity 31 is open, allowing the terminal to be inserted into the mounting cavity 31 from the top. When the terminal is placed in the mounting cavity 31, one end of the pin 1 is positioned above, and the other two ends are positioned below. The mounting cavity 31 has through holes 32 corresponding to the two ends of the pin 1 positioned below, through which a detection electrode 41, serving as a receiving end, can pass and connect.

[0033] Specifically, the detection electrode 41, which serves as the transmitting end, and the detection electrode 41, which serves as the receiving end, are respectively mounted on the first transfer mechanism 42 and the second transfer mechanism 43. The first transfer mechanism 42 and the second transfer mechanism 43 can respectively drive the two sets of detection electrodes 41 to move toward the mounting cavity 31 and electrically connect to the end of the pin 1.

[0034] The first transplanting mechanism 42 includes a fixing frame 44, which is fixed to the base 2. One end of the fixing frame 44 away from the base 2 is positioned above the terminal fixture 3 and a first driver 421 is vertically arranged thereon. A detection electrode 41, serving as the transmitting end, is vertically fixed to the actuating end of the first driver 421. The second transplanting mechanism 43 includes a second driver 431, which is vertically fixed to the fixing frame 44 and positioned below the terminal fixture 3. Two detection electrodes 41, serving as receiving ends, are vertically fixed to the actuating end of the second driver 431.

[0035] Furthermore, in order to increase the testing efficiency of the equipment, multiple mounting cavities 31 are arranged in a straight line on the terminal fixture 3, so that one terminal fixture 3 can mount multiple terminals at the same time, thus optimizing the testing cycle.

[0036] Therefore, the terminal fixture 3 is slidably connected to the base 2 in the horizontal direction via a fixture transfer mechanism 5. The fixture transfer mechanism 5 includes a transfer slide rail 51, which is fixed to the base 2, and the length direction of the transfer slide rail 51 is parallel to the arrangement direction of the plurality of mounting cavities 31. A transfer slider 52 is slidably disposed on the transfer slide rail 51, and the terminal fixture 3 is fixed to the transfer slider 52.

[0037] During work:

[0038] The robotic arm places the terminal to be tested into the mounting cavity 31 on the terminal fixture 3. The first transfer mechanism 42 and the second transfer mechanism 43 drive the two sets of detection electrodes 41 to move toward the terminal corresponding to the pin 1. When both sets of detection electrodes 41 are electrically connected to the end of the pin 1, the detection electrode 41, which serves as the transmitting end, outputs a current signal.

[0039] If both detection electrodes 41, acting as receivers, receive the current signal, it proves that pin 1 is intact. Otherwise, it indicates that pin 1 is damaged.

[0040] The above embodiments are only for illustrating the technical concept and features of this utility model, and are intended to enable those skilled in the art to understand the content of this utility model and implement it accordingly. They should not be construed as limiting the scope of protection of this utility model. It is obvious to those skilled in the art that this utility model is not limited to the details of the above exemplary embodiments, and that it can be implemented in other specific forms without departing from the spirit or basic characteristics of this utility model. Therefore, the embodiments should be considered exemplary and non-limiting in all respects. The scope of this utility model is defined by the appended claims rather than the foregoing description, and therefore, all changes falling within the meaning and scope of the equivalents of the claims are intended to be included within this utility model.

Claims

1. A terminal continuity testing device, characterized in that, Includes a base (2), on which are provided: The terminal fixture (3) has a mounting cavity (31) that is shaped to fit the terminal, the mounting cavity (31) being able to mount the terminal and expose the ends of the pins (1) on the terminal; The detection component (4) includes at least two sets of detection electrodes (41), which are electrically connected to the two ends of the pin (1), and one set of detection electrodes (41) is connected to an external power source and emits an electrical signal, which can be transmitted to the other set of detection electrodes (41) through the connected pin (1).

2. The terminal continuity testing device according to claim 1, characterized in that, The two sets of detection electrodes (41) are respectively installed on the first transplanting mechanism (42) and the second transplanting mechanism (43). The first transplanting mechanism (42) and the second transplanting mechanism (43) can respectively drive the two sets of detection electrodes (41) to move toward the mounting cavity (31) and electrically connect to the end of the pin (1).

3. The terminal continuity testing device according to claim 2, characterized in that, The first transplanting mechanism (42) includes a fixing frame (44), which is fixed to the base (2). One end of the fixing frame (44) away from the base (2) is placed above the terminal fixture (3) and a first driver (421) is arranged in the vertical direction. A set of detection poles (41) are fixed in the vertical direction to the execution end of the first driver (421).

4. The terminal continuity testing device according to claim 3, characterized in that, The second transplanting mechanism (43) includes a second driver (431) fixed in the vertical direction to the fixing frame (44) and disposed below the terminal fixture (3), and a set of detection poles (41) fixed in the vertical direction to the execution end of the second driver (431).

5. A terminal continuity detection device according to claim 3 or 4, characterized in that, The mounting cavities (31) are arranged in a straight line along the horizontal direction on the terminal fixture (3).

6. The terminal continuity detection device according to claim 5, characterized in that, The terminal fixture (3) is slidably connected to the base (2) in the horizontal direction through the fixture transfer mechanism (5). The fixture transfer mechanism (5) includes a transfer slide rail (51), which is fixed on the base (2). The length direction of the transfer slide rail (51) is parallel to the arrangement direction of the multiple mounting cavities (31). A transfer slider (52) is slidably disposed on the transfer slide rail (51), and the terminal fixture (3) is fixed on the transfer slider (52).

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