CN201242580Y - Automatic tester for capacitor - Google Patents

Abstract

The utility model discloses an automatic capacitor measuring machine which comprises a frame, a voltage measuring device used to measure the capacitance and a positioning device for holding a capacitor to be measured. The positioning device of the capacitor to be measured can move relative to the frame. When testing, the capacitor to be measured is installed in the positioning device and is moved to the position of the voltage measuring device, and the voltage measuring device presses down the testing terminal to perform test. A screw rod (3) is installed on the frame and is connected with the positioning device of the capacitor to be measured and can control the movement thereof. The automatic capacitor measuring machine provided adopts the mechanical movement positioning principle, the capacitor is positioned at the identical position during each test; the capacitor can be positioned accurately during testing; and each time the when the terminal measures the voltage of the capacitor pin, no incorrect judgment can not made due to misplacement.

Description

Automatic testing machine for capacitors

technical field

The utility model relates to an automatic testing machine for capacitors.

Background technique

At present, the existing capacitance test mainly adopts two methods: ①Test terminal sliding test: use two steel wires to bend into a hook shape, and the capacitor slides through the guide rail during the test. The two steel wires touch the two pins of the capacitor respectively, and the test instrument The two output terminals are connected to two steel wires for sliding test, and the defective or good products are judged with a pen; ②Automatic test: after using infrared rays to locate the capacitor, the test terminal is pressed on the two pins of the capacitor for testing.

However, these methods all have shortcomings such as easy misjudgment due to inaccurate positioning. For example, in the second automatic test, due to the skewed capacitance, it is easy to misplace or inaccurate positioning during infrared positioning, resulting in misjudgment.

Contents of the invention

The purpose of the utility model is to provide an automatic testing machine for capacitors, which has precise positioning, and the capacitors are positioned at the same position every time they are tested, and no misjudgment will be caused by dislocation when testing capacitor pins.

In order to achieve the above object, the utility model provides an automatic testing machine for capacitors, which is characterized in that it includes a frame, a pressure measuring device for testing capacitance, and a placement device for the capacitor to be tested, and the placement device for the capacitor to be tested can be Move relative to the frame, when the test is required, the capacitor to be tested is installed in the capacitor to be tested, and the capacitor to be tested is moved to the position of the pressure test device, and the pressure test device presses down its test terminal for testing. It is connected with the capacitor placement device to be tested, and can control the movement of the capacitor placement device to be tested.

The device for placing the capacitor to be measured includes a tooling board and a moving carrier for placing the capacitor to be measured. The tooling board is movably installed on the moving carrier and can slide relative to the moving carrier.

The screw rod is connected with the moving carrier, which can control the movement of the moving carrier; the moving carrier moves relative to the frame, and sends the tooling board to the position of the pressure measuring device so that the pressure measuring device presses down its test terminal for testing.

The frame is provided with a tooling plate and a backward catch. Tooling plate retreat catch 2 can be moved forward, but cannot be moved backward.

A positioning groove is arranged on the tooling plate.

The frame is provided with a movable positioning block matched with the positioning groove, and a positioning cylinder for pushing out the positioning block.

The tooling board is provided with grooves for installing the capacitor pins to be tested. It can ensure that the test position is fixed for each test, increasing the accuracy.

The lower part of the tooling plate is provided with a protruding part.

A motion guide groove is provided on the side of the protruding part of the tooling plate.

Guide rails are arranged on the frame, and the moving carrier board is installed on the guide rails and can slide along the guide rails. The guide rail can make the overall mechanical operation more flexible and extend the time.

The utility model effectively overcomes the defects of the existing capacitor testing machine and has the following advantages:

1. The automatic testing machine for capacitors of the present utility model adopts the principle of mechanical motion positioning. The capacitors are positioned at the same position each time they are tested. Misjudgment due to misplacement.

2. The automatic testing machine for capacitors of the utility model adopts screw components, which can make the rotating parts more accurate.

3. The automatic testing machine for capacitors of the present utility model has a simple structure, is convenient to manufacture, and is beneficial to popularization.

Description of drawings

Below in conjunction with accompanying drawing and embodiment the utility model is further described:

Fig. 1 is the structural representation of the utility model;

Fig. 2 is a schematic structural view of the tooling plate of the present invention.

Among them: 1 guide rail; 2 tooling plate retreat grip; 3 screw rod; 4 motion carrier plate; 5 tooling plate; 6 positioning cylinder; 7 positioning groove; 8 motion guide groove.

Detailed ways

Embodiment: As shown in FIG. 1 , an automatic capacitor testing machine includes a frame, a pressure measuring device for testing the capacitor, and a tooling board 5 for placing the capacitor to be tested.

The tooling plate 5 is movably installed on the moving carrier plate 4, and it can slide relative to the moving carrier plate 4. The moving carrier plate 4 moves relative to the frame, and the tooling plate 5 is sent to the position of the pressure measurement device to make the pressure measurement device Press down on its test terminal to test.

A guide rail 1 is arranged on the frame, and a moving carrier plate 4 is installed on the guide rail 1 and can slide along the guide rail 1 . A threaded mandrel 3 is arranged on the frame, and the threaded mandrel 3 is connected with the moving carrier 4 to control the movement of the moving carrier 4 .

The frame is provided with a tooling board retreat card grab 2.

As shown in FIG. 2 , a protruding portion is provided on the lower part of the tooling plate 5 . A motion guide groove 8 is provided on the side of the protruding part of the tooling plate 5 .

As shown in FIG. 2 , a positioning groove 7 is also provided on the tooling plate 5 . The frame is provided with a movable positioning block matched with the positioning groove 7, and a positioning cylinder 6 for releasing the positioning block.

The tooling board 5 is provided with grooves for installing the capacitor pins to be measured. It can ensure that the test position is fixed for each test, increasing the accuracy.

When in use, the pins of the capacitor to be tested are clamped in the groove of the tooling board 5, and two capacitors to be tested can be placed at the same time at a time.

After measuring the capacitance on a tooling board 5, the screw mandrel 3 is pushed forward for a certain distance (100mm in this embodiment). When the tooling plate 5 surpasses the tooling plate and catches 2 and is in place, the screw mandrel 3 retreats to drive the moving carrier plate 4 to retreat together, and drives the moving carrier plate 4 to retreat to the original position.

Tooling plate retreat catch 2 can be moved forward, but cannot be moved backward. Therefore, in the process of the tooling plate 5 retreating together with the moving carrier plate 4, when the tooling plate retreats to the back grip 2, it is positioned here, and the screw rod 3 continues to retreat to the original position. At this time, the tooling plate 5 and the moving The carrier plates 4 slide relative to each other, and the moving carrier plate 4 retreats together with the screw mandrel 3 , while the tooling plate 5 is positioned on the tooling plate and the catch 2 does not retreat together with the screw mandrel 3 . The positioning cylinder 6 pushes out the positioning block to be stuck in the positioning groove 7 of the tooling plate 5, so as to maintain the consistency of each positioning. After the tooling plate 5 is positioned and the screw rod 3 is back in place, the test terminal of the pressure measurement device starts to press down for testing. .

In the test device of the present invention, the position of the test terminal is fixed for each test, and the tooling plate 5 is positioned by the backward catch 2 of the tooling plate, and the position of each positioning is also fixed, so as to ensure the accuracy of each test positioning. Each component of the utility model relies on mechanical sliding to be locked and positioned, ensuring the accuracy of the positioning of the tooling plate 5, and its capacitor is stuck in the groove of the tooling plate 5 to ensure accurate contact when the test terminal is pressed down for each test.

Claims (10)

1. an automatic test machine for capacitors, characterized in that: it includes a frame, a pressure measuring device for testing capacitance, a capacitor placement device to be tested, and the capacitor placement device to be tested can move relative to the frame, and needs to be tested When the capacitance to be measured is placed in the capacitor to be measured, the capacitor to be measured is installed and moved to the position of the pressure measurement device, and the pressure measurement device presses down its test terminal for testing. The frame is provided with a screw (3), and the screw (3) is connected to the The capacitor placement device to be tested is connected to control the movement of the capacitor placement device to be tested. 2. the automatic test machine of capacitor according to claim 1, is characterized in that: described capacitance to be tested placement device comprises the tooling plate (5) and the motion carrier plate (4) that are used to place the capacitance to be measured, and described tooling The plate (5) is movably installed on the moving carrier (4), and can slide relative to the moving carrier (4). 3. The automatic testing machine for capacitors according to claim 2, characterized in that: the screw mandrel (3) is connected to the moving carrier (4) to control the movement of the moving carrier (4); the moving carrier (4) ) is moved relative to the frame, and the tooling plate (5) is sent to the position of the pressure measurement device so that the pressure measurement device presses down its test terminal for testing. 4. The automatic testing machine for capacitors according to claim 2, characterized in that: the frame is provided with a tooling plate retreat catch (2). 5. The automatic testing machine for capacitors according to claim 2, characterized in that: the tooling plate (5) is provided with a positioning groove (7). 6. The automatic testing machine for capacitors according to claim 5, characterized in that: the frame is provided with a movable positioning block matched with the positioning groove (7), and a positioning cylinder for pushing out the positioning block (6). 7. The automatic testing machine for capacitors according to claim 2, characterized in that: said tooling plate (5) is provided with grooves for installing the capacitor pins to be tested. 8. The automatic testing machine for capacitors according to claim 2, characterized in that: the lower part of the tooling plate (5) is provided with a protruding part. 9. The automatic testing machine for capacitors according to claim 8, characterized in that: a movement guide groove (8) is provided on the side of the protruding part of the tooling plate (5). 10. The automatic testing machine for capacitors according to claim 2, characterized in that: a guide rail (1) is provided on the frame, and the moving carrier (4) is installed on the guide rail (1), and can be moved along The rail (1) slides.

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