Terminal withstand voltage detector

Abstract

The utility model belongs to the technical field of terminal voltage withstanding detection, and particularly relates to a terminal voltage withstanding detection machine which comprises a machine table, a test fixture, a driving device, a detection device and a protective cover. The protective cover covers the rear end of the machine table, and an opening is formed in the lower end of the protective cover and faces the front end of the machine table. The driving device is arranged on the machine table, and the detection device is arranged on the machine table and located in the protective cover. The testing jig is arranged at the driving end of the driving device, the driving device is used for driving the testing jig to penetrate through the opening to stretch into or stretch out of the protective cover, and the detection device is used for detecting a workpiece on the testing jig stretching into the protective cover. According to the utility model, an operator does not need to walk away from the machine table when starting the test, and the test fixture is transmitted into the protective cover through the driving device, so that safety accidents caused by electric arcs generated by short circuit due to the insulation defect of the terminal in the test process are avoided, and the labor intensity of the operator is also saved.

Description

Technical Field

[0001] This utility model belongs to the field of terminal withstand voltage testing technology, and in particular relates to a terminal withstand voltage testing machine. Background Technology

[0002] Terminals, as a crucial component of electrical connections, directly impact the safety and reliability of the entire circuit system. Therefore, after manufacturing, terminals undergo withstand voltage testing to check their insulation performance under rated and overvoltage conditions, ensuring safe operation under both normal and abnormal circumstances. Inappropriate insulation materials or gaps in the terminals can lead to breakdown discharge or damage, consequently affecting the safety and reliability of the entire circuit.

[0003] The principle of terminal withstand voltage testing is to apply a voltage higher than the normal operating voltage between terminal contacts and between the contacts and the housing for a period of time to check whether the insulation performance of the terminals meets safety standards. Specifically, the withstand voltage test involves applying a specified voltage between the contacts of the terminal harness and between the contacts and the housing for a period of time, and observing whether there are any breakdowns or discharge phenomena.

[0004] Most traditional terminal withstand voltage testing methods involve manually installing the terminals into a fixture and then conducting an electrical test. During this process, due to insulation defects, poor disassembly, or design problems with the terminals themselves, short circuits or terminal breakdowns may occur, generating electric arcs or causing short circuits. If the testing personnel do not promptly leave the testing station after the test, the generated electric arcs can easily injure the testing personnel, leading to safety accidents. Alternatively, the high temperatures caused by a short circuit can burn out the testing equipment. Therefore, developing a safe terminal withstand voltage testing device has significant practical importance and application value. Utility Model Content

[0005] The purpose of this utility model is to provide a terminal withstand voltage testing machine, which aims to solve the technical problems in the prior art, such as the electric arc that can easily injure the testing personnel and cause safety accidents when the testing personnel do not leave the testing station in time after the test, and the electric arc can easily cause short circuits and subsequent high temperature that can burn out the testing mechanism.

[0006] To achieve the above objectives, this utility model provides a terminal withstand voltage testing machine, including a machine base, a testing fixture, a driving device, a testing device, and a protective cover. The protective cover is located at the rear end of the machine base, with an opening at its lower end facing the front end of the machine base. The driving device is mounted on the machine base, and the testing device is mounted on the machine base and located inside the protective cover. The testing fixture is located at the driving end of the driving device, which drives the testing fixture to extend into or out of the protective cover through the opening. The testing device is used to test the workpiece on the testing fixture extending into the protective cover.

[0007] Further, the driving device comprises two slide rails and a driving cylinder, the two slide rails are laid on the machine table and are parallel to each other, and the driving cylinder is arranged on the machine table and located at one side of the slide rails. The test fixture is slidably connected to the slide rails and connected to the driving end of the driving cylinder, and the driving cylinder is used to drive the test fixture to extend into or out of the protective cover through the opening.

[0008] Further, the machine table further comprises a positioning device, the positioning device is arranged on the machine table and located in the protective cover, and the positioning device is arranged between the two slide rails and at the rear end of the machine table.

[0009] Further, the positioning device comprises a positioning bracket, a positioning column and a positioning spring. The positioning bracket is arranged on the machine table, the positioning bracket is provided with a positioning hole, and the positioning hole is located at one side of the test fixture. The positioning column is slidably arranged in the positioning hole, and the positioning column is perpendicular to one end of the test fixture. Both ends of the positioning column are provided with column caps, the shaft diameter of the column caps is greater than the hole diameter of the positioning hole, the positioning spring is sleeved on one end of the positioning column close to the test fixture, and one end of the positioning spring abuts against the positioning bracket and the other end abuts against the column cap.

[0010] Further, the test fixture comprises a sliding plate, a mounting plate and a protective plate. The sliding plate is slidably connected to the slide rails, the mounting plate is arranged on the sliding plate, and the mounting plate is further provided with a plurality of positioning plates for positioning the protective plate. The protective plate is arranged on the mounting plate, and the protective plate extends upward to form an opening upward cavity.

[0011] Further, the protective plate is further provided with a partition plate extending from one side of the protective plate to the other side to divide the cavity into a first cavity and a second cavity, and one end of the first cavity and the second cavity is communicated with each other.

[0012] Further, the detection device comprises a support column, a driving member and two probes. The support column is located in the protective cover, one end of the support column is connected to the machine table, and the other end is connected to the driving member. The two probes are arranged on the driving end of the driving member, and the driving member is used to drive the two probes to move in the vertical direction.

[0013] The terminal voltage withstand detection machine provided by the embodiment of the utility model has at least one of the following technical effects: the terminal to be tested is installed into the test fixture, then the driving device drives the test fixture to be transported from the front end of the machine table to the rear end of the machine table, the test fixture is driven to enter the protective cover through the opening and is connected with the detection device, the detection device detects the voltage withstand of the terminal, when the detection is completed, the driving device drives the test fixture to be transported from the rear end of the machine table to the front end of the machine table, the operator installs the new test terminal into the test fixture, in this process, the operator does not need to walk away from the machine table at the beginning of the test, the test fixture is transported into the protective cover through the driving device, the safety accident caused by the electric arc generated by the short circuit due to the insulation defect of the terminal itself in the test process is avoided, and the labor intensity of the operator is also saved. BRIEF DESCRIPTION OF DRAWINGS

[0014] In order to more clearly illustrate the technical scheme in the embodiment of the utility model, the drawings needed to be used in the embodiment or the prior art description will be briefly introduced below, and obviously, the drawings in the following description are only some embodiments of the utility model, and for the ordinary skilled in the art, other drawings can also be obtained according to these drawings without creative labor.

[0015] Figure 1 The structure schematic view of the terminal voltage withstand detection machine provided by the embodiment of the utility model is provided.

[0016] Figure 2 The other structure schematic view of the terminal voltage withstand detection machine provided by the embodiment of the utility model is provided.

[0017] Figure 3 The structure schematic view of the test fixture of the terminal voltage withstand detection machine provided by the embodiment of the utility model is provided.

[0018] Figure 4 The structure schematic view of the positioning device of the terminal voltage withstand detection machine provided by the embodiment of the utility model is provided.

[0019] Figure 5 The structure schematic view of the detection device of the terminal voltage withstand detection machine provided by the embodiment of the utility model is provided.

[0020] 100, machine table; 200, test fixture; 210, slide plate; 220, mounting plate; 221, positioning plate; 230, protective plate; 231, open cavity; 232, partition plate; 233, first cavity; 234, second cavity; 300, driving device; 310, slide rail; 320, driving cylinder; 400, detection device; 410, support column; 420, driving piece; 430, probe; 500, protective cover; 510, opening; 600, positioning device; 610, positioning support; 611, positioning hole; 620, positioning column; 621, column cap; 630, positioning spring. DETAILED DESCRIPTION

[0021] The embodiments of the present application are described in detail below, examples of which are shown in the drawings, wherein the same or similar notations represent the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by reference to the drawings are exemplary and are intended to explain the embodiments of the present application, and cannot be understood as a limitation of the present application.

[0022] In the description of the embodiments of the present application, it should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the embodiments of the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the device or element indicated must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation of the present application.

[0023] In addition, the terms "first", "second" are only for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features defined with "first", "second" can explicitly or implicitly include one or more of the features. In the description of the embodiments of the present application, the meaning of "multiple" is two or more, unless otherwise specifically limited.

[0024] In the embodiments of the present application, unless otherwise specifically defined and limited, the terms "mounting", "connection", "connection", "fixing" and the like should be understood in a broad sense, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the communication or interaction relationship between two elements. For those skilled in the art, the specific meaning of the above terms in the embodiments of the present application can be understood according to the specific circumstances.

[0025] In an embodiment of the utility model, reference Figures 1-5 As shown in the figure, a terminal withstand voltage detection machine is provided, which comprises a machine table 100, a test fixture 200, a driving device 300, a detection device 400 and a protective cover 500. The protective cover 500 is arranged at the rear end of the machine table 100, and the lower end of the protective cover 500 is provided with an opening 510, which faces the front end of the machine table 100. The driving device 300 is arranged on the machine table 100, and the detection device 400 is arranged on the machine table 100 and located in the protective cover 500. The test fixture 200 is arranged at the driving end of the driving device 300, and the driving device 300 is used to drive the test fixture 200 to extend into or out of the protective cover 500 through the opening 510, and the detection device 400 is used to detect the workpiece on the test fixture 200 extending into the protective cover 500. In this embodiment, the terminal to be tested is installed in the test fixture 200, and then the driving device 300 drives the test fixture 200 to transport from the front end of the machine table 100 to the rear end of the machine table 100. After the test fixture 200 is driven to pass through the opening 510, it enters the protective cover 500 and is connected with the detection device 400. The detection device 400 detects the withstand voltage of the terminal. When the detection is completed, the driving device 300 drives the test fixture 200 to transport from the rear end of the machine table 100 to the front end of the machine table 100. The operator installs a new test terminal in the test fixture 200. In this process, the operator does not need to walk away from the machine table 100 at the beginning of the test. The test fixture 200 is transported into the protective cover 500 by the driving device 300, which avoids the occurrence of safety accidents caused by the generation of electric arc due to the insulation defect of the terminal itself during the test process, and also saves the labor intensity of the operator.

[0026] Specifically, as shown in the figure, Figures 1-5 The driving device 300 comprises two slide rails 310 and a driving cylinder 320. The two slide rails 310 are arranged on the machine table 100 and parallel to each other, and the driving cylinder 320 is arranged on the machine table 100 and located at one side of the slide rail 310. The test fixture 200 is slidably connected to the slide rail 310 and connected to the driving end of the driving cylinder 320. The driving cylinder 320 is used to drive the test fixture 200 to extend into or out of the protective cover 500 through the opening 510. In this embodiment, the driving cylinder 320 is used to drive the test fixture 200 to extend into or out of the protective cover 500 through the opening 510 along the direction of the slide rail 310. The cylinder driving system has the advantages of simple system composition, easy to obtain stable speed, low price of components and easy maintenance. Moreover, the cylinder driving can make the test fixture 200 stay at two working positions, which is convenient for the operator to load and unload and also convenient for the test fixture 200 to align with the detection device 400.

[0027] Specifically, as shown in the figure, Figures 1-5The position device 600 is arranged on the machine table 100 and located in the protective cover 500. The position device 600 is arranged between the two slide rails 310 and located at the rear end of the machine table 100. In the embodiment, the position device 600 can better position the test fixture 200. When the test fixture 200 is located in the protective cover 500, the position device positions the test fixture 200 to be located at one side of the detection device 400, so as to avoid poor contact between the detection device 400 and the terminals in the test fixture 200 to cause arc generation and affect the detection effect.

[0028] Specifically, referring to Figures 1-5 The position device 600 includes a position support 610, a position column 620 and a position spring 630. The position support 610 is arranged on the machine table 100, and the position support 610 is provided with a position hole 611 located at one side of the test fixture 200. The position column 620 is slidingly arranged in the position hole 611, and the position column 620 is perpendicular to one end of the test fixture 200. Both ends of the position column 620 are provided with a column cap 621, the shaft diameter of the column cap 621 is greater than the hole diameter of the position hole 611, the position spring 630 is sleeved on one end of the position column 620 close to the test fixture 200, and one end of the position spring 630 abuts against the position support 610, and the other end abuts against the column cap 621. In the embodiment, when the test fixture 200 is driven into the protective cover 500 by the driving mechanism, the test fixture 200 contacts the position column 620 and compresses the position spring 630 due to inertia to the rear end of the machine table 100 during movement. After the inertia is slowed down, the position spring 630 releases the elastic force, so that the test fixture 200 is located at one side of the detection device 400, and poor contact between the detection device 400 and the terminals in the test fixture 200 is avoided to cause arc generation and affect the detection effect.

[0029] Specifically, referring to Figures 1-5 The test fixture 200 includes a slide plate 210, a mounting plate 220 and a protective plate 230. The slide plate 210 is slidingly connected to the slide rail 310, the mounting plate 220 is arranged on the slide plate 210, and the mounting plate 220 is further provided with a plurality of positioning plates 221 for positioning the protective plate 230. The protective plate 230 is arranged on the mounting plate 220, and the protective plate 230 extends upward to form an opening 510 upward opening cavity 231. In the embodiment, the terminals are placed in the protective plate 230, and the detection device 400 detects them. Double protection is achieved to avoid the terminals from injuring the operator when arc is generated.

[0030] Specifically, referring to Figures 1-5As shown, the protection plate 230 is further provided with a partition plate 232 extending from one side to the other side of the protection plate 230 to divide the cavity 231 into a first cavity 233 and a second cavity 234, and the first cavity 233 and the second cavity 234 are communicated at one end. In the embodiment, the positive and negative terminals are respectively installed in the first cavity 233 and the second cavity 234 to avoid the positive and negative terminals from contacting each other or from being communicated after arc generation to affect the detection effect.

[0031] In particular, reference is made to Figures 1-5 As shown, the detection device 400 comprises a support column 410, a driving member 420 and two probes 430. The support column 410 is located in the protection cover 500, one end of the support column 410 is connected with the machine table 100, the other end is connected with the driving member 420, the two probes 430 are arranged at the driving end of the driving member 420, and the driving member 420 is used for driving the two probes 430 to move in the vertical direction. In the embodiment, the two probes 430 are used for connecting the power supply and the detection ammeter, when the test fixture 200 is located in the protection cover 500, the driving member 420 drives the two probes 430 to contact the terminals downward, when the detection ammeter appears abnormal, the driving device 300 drives the two probes 430 to move upward to avoid the short circuit of the terminals, so as to burn the power supply and the detection ammeter.

[0032] The above merely describes the preferred embodiments of the present application and is not used to limit the present application, and any modification, equivalent replacement and improvement within the spirit and principle of the present application should be included in the protection scope of the present application.

Claims

1. A terminal withstand voltage detection machine characterized by comprising: The utility model provides a test device, including machine table, test fixture, drive arrangement, detection device and protective cover, the protective cover covers the rear end of machine table, and the lower end of protective cover is equipped with an opening, the opening is to the front end of machine table, drive arrangement sets up on machine table, detection device sets up on machine table and is located in protective cover, test fixture sets up in the drive end of drive arrangement, drive arrangement is used to drive test fixture and goes in or goes out protective cover in the opening, detection device is used for detecting the workpiece on test fixture that goes in protective cover.

2. The terminal withstand voltage testing machine according to claim 1, characterized by: The drive arrangement includes two slide rails and a drive cylinder, the two slide rails are laid on the machine table, and the two slide rails are parallel to each other, the drive cylinder is arranged on the machine table and located on one side of the slide rails, the test fixture is slidably connected to the slide rails and connected to the drive end of the drive cylinder, and the drive cylinder is used to drive the test fixture to go in or go out the protective cover through the opening.

3. The terminal withstand voltage testing machine according to claim 2, characterized by: The utility model also includes a positioning device, the positioning device is arranged on the machine table and located in the protective cover, the positioning device is arranged between the two slide rails and located at the rear end of the machine table.

4. The terminal withstand voltage testing machine according to claim 3, characterized by: The positioning device includes a positioning bracket, a positioning column and a positioning spring, the positioning bracket is arranged on the machine table, the positioning bracket is provided with a positioning hole, the positioning hole is located on one side of the test fixture, the positioning column is slidably arranged in the positioning hole, one end of the positioning column is perpendicular to the test fixture, both ends of the positioning column are provided with a column cap, the shaft diameter of the column cap is greater than the hole diameter of the positioning hole, the positioning spring is sleeved on one end of the positioning column close to the test fixture, one end of the positioning spring abuts against the positioning bracket, and the other end abuts against the column cap.

5. The terminal withstand voltage testing machine according to claim 2, characterized by: The test fixture includes a sliding plate, a mounting plate and a protective plate, the sliding plate is slidably connected to the slide rails, the mounting plate is arranged on the sliding plate, the mounting plate is further provided with a plurality of positioning plates, the positioning plates are used to position the protective plate, the protective plate is arranged on the mounting plate, and the protective plate extends upward to form an opening upward cavity.

6. The terminal withstand voltage testing machine according to claim 5, characterized by: The protective plate is further provided with a partition plate, the partition plate extends from one side of the protective plate to the other side to divide the opening cavity into a first cavity and a second cavity, and one end of the first cavity and the second cavity communicates with each other.

7. The terminal withstand voltage testing machine according to any one of claims 1 to 6, characterized by: The detection device includes a support column, a driving member and two probes, the support column is located in the protective cover, one end of the support column is connected to the machine table, the other end is connected to the driving member, the two probes are arranged on the driving end of the driving member, and the driving member is used to drive the two probes to move in the vertical direction.

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