A method and device for testing and screening multilayer chip ceramic capacitors

Abstract

The present invention relates to the technical field of capacitor testing, and in particular to a method and device for testing and screening multilayer ceramic capacitors, including a bridge resistance tester, a discharge workbench and a discharge assembly, wherein a disc is rotatably mounted on the upper surface of the discharge workbench, a driving motor for driving the disc to rotate is mounted on the lower surface of the disc, a placement opening is provided on the upper surface of the disc, a vertical receiving strip is fixedly connected to the inner bottom of the placement opening, and a blocking plate for fixing the capacitor is mounted on the upper surface of the disc. The present invention can detect the resistance of the capacitor by setting a bridge resistance tester, and can discharge the detected capacitor by setting a discharge mechanism, thereby making up for the drawback that the existing bridge resistance tester cannot automatically perform the discharge operation in the continuous mode.

Description

Technical Field

[0001] The invention belongs to the technical field of capacitor testing, and in particular relates to a method and device for testing and screening multilayer chip ceramic capacitors. Background Art

[0002] Chip multilayer ceramic capacitors, also known as chip capacitors, are made by stacking ceramic dielectric diaphragms with printed electrodes (inner electrodes) in an offset manner, sintering them at a high temperature once to form a ceramic chip, and then sealing the two ends of the chip with a metal layer (outer electrode) to form a monolithic structure, so it is also called a monolithic capacitor.

[0003] After the production of capacitors is completed, their performance needs to be tested, including the detection of capacitance and resistance. The existing bridge resistance tester can be used to test ceramic capacitors. Most of the existing ceramic capacitors are surface-mounted, which is characterized by no positive and negative poles. When performing resistance testing, the detection end of the bridge resistance tester can be directly connected to the two ends of the capacitor for testing.

[0004] The existing bridge resistance tester needs to perform more settings on the machine when testing capacitors. It includes a continuous detection function, which starts detection after detecting that there is a dielectric connection. However, the disadvantage of this detection method is that the capacitor cannot be discharged after the detection is completed, and subsequent manual discharge is required, which is inconvenient. In addition, when testing more capacitors, manual wiring detection is required for each test, which is inconvenient.

[0005] Therefore, we propose a test device that can perform continuous resistance detection and automatically discharge after the detection is completed. Summary of the invention

[0006] To achieve the above-mentioned object, the present invention proposes a multilayer chip ceramic capacitor device, comprising a bridge resistance tester, a discharge workbench and a discharge assembly, wherein a disc is rotatably mounted on the upper surface of the discharge workbench, a driving motor for driving the disc to rotate is mounted on the lower surface of the disc, a placement opening is opened on the upper surface of the disc, a vertical receiving strip is fixedly connected to the inner bottom of the placement opening, and a blocking plate for fixing the capacitor is mounted on the upper surface of the disc;

[0007] The connection points of the bridge resistance tester and the discharge assembly are both equipped with connection heads, which are electrically connected to vertical lap joints. The lap joints are located below the disc placement opening, and an insulating strip is installed on the lower surface of the disc.

[0008] In one example, a connecting block is fixedly connected to one side of the blocking plate facing the disc, an L-shaped groove passing through the blocking plate is provided on the surface of the connecting block, an L-shaped fixing block is slidably connected to the inner wall of the L-shaped groove, and a control spring 2 is fixedly connected to the opposite surface of the L-shaped fixing block and the L-shaped groove.

[0009] In one example, a connecting groove is provided on the upper surface of the disc, the connecting block is located inside the connecting groove, and a fixing groove is provided inside the connecting groove, and the L-shaped fixing block is inserted into the fixing groove under the elastic force of the second control spring.

[0010] In one example, a guide box is installed at the front end of the terminal head, a through hole is opened on the upper surface of the guide box, a lap joint is slidably installed inside the through hole, an insulating pad is installed at the bottom of the lap joint, a control spring is fixedly connected to the opposite surface of the insulating pad and the guide box, and the top of the lap joint is hemispherical.

[0011] In one example, the upper surface of the discharge workbench is fixedly connected to a concave seat, the terminal head is located inside the concave seat, and the side of the concave seat is threadedly connected with a clamping bolt, the threaded end of the clamping bolt is pressed against the surface of the insulating hand-held part of the terminal head, the distance between the two terminal heads is the same as the distance between the two electrodes of the capacitor, and the edges of the insulating strips are all arc-shaped.

[0012] In one example, the disc includes a main disc and an arc-shaped movable plate. The number of the arc-shaped movable plates is several, and the arc-shaped movable plates are arranged in a circular array on the surface of the main disc. The inner ring surface of the arc-shaped movable plate is fixedly connected with a T-shaped connecting rod. The surface of the main disc is provided with a T-shaped slide, and the T-shaped connecting rod is slidably installed inside the T-shaped slide.

[0013] In one example, a control box is fixedly connected to the upper surface of the disc, and a circular plate that penetrates the control box is slidably installed on the control box toward the arc-shaped movable plate, and one end of the circular plate away from the control box is fixedly connected to the arc-shaped movable plate.

[0014] In one example, the inner wall of the control box is rotatably connected to a threaded rod, a threaded hole is provided on the surface of the circular plate, the surface of the threaded rod is threadedly connected to the inner wall of the threaded hole, and a rotating operating rod that passes through the control box is rotatably installed on the upper surface of the control box, and the rotating operating rod drives the threaded rod to rotate through a bevel gear set.

[0015] In one example, a ceramic capacitor test device test screening method includes the following steps:

[0016] Step 1: Fix the capacitor. Place the capacitor in the placement opening above the disc and fix it with a blocking plate.

[0017] Step 2: Instrument settings, set the bridge resistance tester to continuous detection mode.

[0018] Step 3: Resistance measurement, start the drive motor, the drive motor drives the disc to rotate, so that the capacitor on the disc moves to the top of the bridge resistance tester for resistance detection.

[0019] Step 4: Discharging the capacitor. After the detection is completed, the drive motor continues to drive the disc to rotate, and the capacitor is discharged through the discharge component.

[0020] Step 5: Adjust the position of the disc. After the capacitors around the disc are tested and discharged, turn the rotary operating lever to move the arc-shaped moving plate, and move the placement port on the inner circle to the top of the lap joint. At this time, repeat steps 3 and 4 to test the inner circle capacitors.

[0021] The multilayer ceramic capacitor testing and screening method and device proposed by the present invention can bring the following beneficial effects:

[0022] 1. The present invention can detect the resistance of the capacitor by setting up a bridge resistance tester, and can also set up a discharge mechanism to discharge the capacitor after detection, thereby making up for the disadvantage that the existing bridge resistance tester cannot automatically perform the discharge operation in the continuous mode.

[0023] 2. The present invention fixes a plurality of capacitors by setting a disc and rotating the disc, so that continuous detection of a plurality of capacitors can be achieved, and the detection is more convenient.

[0024] 3. The present invention separates the disk into a main disk and an arc-shaped movable plate, and controls the synchronous movement of multiple arc-shaped movable plates by rotating an operating lever to move the position of the disk, and installs capacitors on the inner and outer rings of the disk, so that capacitors at multiple positions on the disk can be detected, thereby rationally utilizing the space on the disk and increasing the number of tests. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0026] Figure 1 A schematic diagram of the three-dimensional structure of the present invention;

[0027] Figure 2 This is a schematic diagram of the disc structure of the present invention;

[0028] Figure 3 This is a schematic diagram of the internal structure of the disc of the present invention;

[0029] Figure 4 This is a schematic diagram of the internal structure of the control box of the present invention;

[0030] Figure 5 It is a schematic diagram of the structure of the discharge assembly of the present invention;

[0031] Figure 6 It is a schematic diagram of the internal structure of the guide box of the present invention.

[0032] The reference numerals are as follows:

[0033] 1 bridge resistance tester, 2 discharge workbench, 3 discharge assembly, 4 terminal, 5 concave seat, 6 tightening bolt, 7 disc, 701 main disc, 702 arc moving plate, 703 T-shaped connecting rod, 704 control box, 705 circular plate, 706 threaded rod, 707 rotating operating rod, 8 vertical supporting bar, 9 driving motor, 10 guide box, 11 lap joint, 12 insulating pad, 13 control spring one, 14 insulating strip, 15 blocking plate, 16 blocking block, 17 connecting block, 18 L-shaped fixing block, 19 control spring two. DETAILED DESCRIPTION

[0034] In order to more clearly illustrate the overall concept of the present invention, a detailed description is given below in an exemplary manner in conjunction with the accompanying drawings.

[0035] In the description of the present invention, it is necessary to understand that the terms "center", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0036] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0037] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or a communication; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0038] In the present invention, unless otherwise clearly specified and limited, the first feature "on" or "under" the second feature may be that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. In the description of this specification, the description with reference to the terms "one scheme", "some schemes", "examples", "specific examples", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the scheme or example are included in at least one scheme or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same scheme or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more schemes or examples in a suitable manner.

[0039] like Figure 1 to Figure 6 As shown, the present invention proposes a method and device for testing and screening multilayer chip ceramic capacitors, including a bridge resistance tester 1, a discharge workbench 2 and a discharge mechanism, wherein the bridge resistance tester 1 is used to detect capacitor resistance.

[0040] The discharge mechanism includes a discharge component 3 fixedly mounted on the upper surface of the discharge workbench 2 (the discharge component 3 is mainly used to discharge the electricity charged in the capacitor during the detection process, and electrical components such as light bulbs can be used), and terminal heads 4 are installed at the connection points of the discharge component 3 and the connection points of the bridge resistance tester 1.

[0041] In order to facilitate the continuous detection operation of multiple capacitors, the test mode of the bridge resistance tester 1 is changed to continuous testing, and the terminal head 4 is fixed, and the concave seat 5 is fixedly connected to the upper surface of the discharge workbench 2. The terminal head 4 is located inside the concave seat 5, and the side of the concave seat 5 is threadedly connected with a tightening bolt 6. The threaded end of the tightening bolt 6 is pressed against the surface of the insulating hand-held part of the terminal head 4, and the distance between the two terminal heads 4 is the same as the distance between the two electrodes of the capacitor, ensuring that the terminal head 4 is overlapped with the electrodes of the capacitor.

[0042] The capacitor is placed on a disk 7 installed on the upper surface of the discharge workbench 2. A placement opening is provided on the upper surface of the disk 7. A vertical receiving strip 8 is fixedly connected to the bottom of the placement opening. The capacitor is placed in the placement opening. The vertical receiving strip 8 receives the middle part of the capacitor, so that the electrodes at both ends of the capacitor are exposed. There are a number of placement openings, and the placement openings are arranged in a circular array on the upper surface of the disk 7. A drive motor 9 is fixedly connected to the lower surface of the discharge workbench 2. The output end of the drive motor 9 extends to the upper surface of the discharge workbench 2 and is fixedly connected to the center of the lower surface of the disk 7. The drive motor 9 drives the disk 7 to rotate, which can drive the capacitor to rotate, so that the capacitor is overlapped with the terminal 4 of the bridge resistance tester 1 and the discharge component 3 respectively for detection and discharge operations.

[0043] The terminal head 4 is installed below the disc 7. Since the existing terminal heads 4 are all straight in shape, it is impossible to ensure that the terminal head 4 is overlapped with the capacitor above. A guide box 10 is installed at the front end of the terminal head 4. A through hole is opened on the upper surface of the guide box 10. A lap joint 11 is slidably installed inside the through hole. An insulating pad 12 is installed at the bottom of the lap joint 11. The insulating pad 12 and the opposite surface of the guide box 10 are fixedly connected with a control spring 13, and the top of the lap joint 11 is hemispherical. The terminal head 4 is electrically connected to the lap joint 11. The connection between the terminal head 4 and the capacitor can be achieved by vertically overlapping the lap joint 11 with the capacitor.

[0044] In order to prevent the lap joint 11 from overlapping with the lower surface of the disk 7 under the elastic force of the control spring 13, a plurality of insulating strips 14 are installed on the lower surface of the disk 7. The insulating strips 14 can block the connection between the lap joint 11 and the disk 7 to prevent the bridge resistance tester 1 from making an erroneous detection. The edges of the insulating strips 14 are all arc-shaped. When the hemispherical surface of the lap joint 11 overlaps with the arc surface, the lap joint 11 can be automatically stored in the guide box 10, and when the lap joint 11 moves to the bottom of the capacitor, the elastic force of the control spring 13 can push the lap joint 11 to overlap with the capacitor.

[0045] A blocking plate 15 is installed on the upper surface of the disk 7, and a blocking block 16 is fixedly connected to the side of the blocking plate 15 facing the disk 7. The blocking block 16 is inserted into the placement opening and overlaps with the middle part of the upper surface of the capacitor. At this time, the blocking block 16 cooperates with the vertical supporting bar 8 to clamp and fix the capacitor to ensure the stability of the capacitor position and avoid the displacement of the capacitor, which causes the overlapping joint 11 to be unable to overlap with the two poles of the capacitor.

[0046] A connecting block 17 is fixedly connected to the side of the blocking plate 15 facing the disk 7. An L-shaped groove is provided on the surface of the connecting block 17 for passing through the blocking plate 15. An L-shaped fixing block 18 is slidably connected to the inner wall of the L-shaped groove. A control spring 2 19 is fixedly connected to the L-shaped fixing block 18 and the opposite surface of the L-shaped groove. A connecting groove is provided on the upper surface of the disk 7. The connecting block 17 is located inside the connecting groove, and a fixing groove is provided inside the connecting groove. The L-shaped fixing block 18 is inserted into the fixing groove under the elastic force of the control spring 2 19. The blocking plate 15 can be fixed on the disk 7 by fixing the L-shaped fixing block 18 in the fixing groove, and the L-shaped fixing block 18 can be pressed to actively detach from the fixing groove, so that the blocking plate 15 can be removed from the disk 7, which is convenient for placing the capacitor in the placement opening.

[0047] Since the area of ​​the disk 7 is large, installing the capacitor only around one circle will waste the space on the disk 7. The disk 7 is divided into a main disk 701 and an arc-shaped movable plate 702. The main disk 701 is connected to the driving motor 9. There are several arc-shaped movable plates 702, which are arranged in a circular array around the disk 7. In order to ensure the connection between the arc-shaped movable plate 702 and the main disk 701, a T-shaped connecting rod 703 is fixedly connected to the inner ring surface of the arc-shaped movable plate 702, and a T-shaped slide is provided on the surface of the main disk 701. The T-shaped connecting rod 703 slides inside the T-shaped slide.

[0048] The upper surface of the disk 7 is fixedly connected with a control box 704, and the control box 704 is provided with a through hole in the direction of the arc-shaped movable plate 702, and the inner wall of the through hole is slidably installed with a circular plate 705, and the inner wall of the control box 704 is rotatably installed with a threaded rod 706 through a bearing, and the surface of the circular plate 705 is provided with a threaded hole, and the surface of the threaded rod 706 is threadedly connected to the inner wall of the threaded hole, and the upper surface of the control box 704 is provided with a through hole, and the inner wall of the through hole is rotatably connected with a rotating operating rod 707, and the bottom end of the rotating operating rod 707 is fixedly connected with an active bevel gear, and the end face of the threaded rod 706 is fixedly connected with a surface of the active bevel gear. The driven bevel gear with meshing surface rotates the rotating operating rod 707, and the rotating operating rod 707 drives the active bevel gear to rotate. At this time, the driven bevel gear drives the threaded rod 706 to rotate. Under the limit of the through hole, the circular plate 705 moves, and the circular plate 705 is fixedly connected with the arc-shaped movable plate 702. The circular plate 705 will drive the arc-shaped movable plate 702 to move, and make multiple arc-shaped movable plates 702 move synchronously, so as to adjust the position of the placement opening on the disk 7, so that the placement opening can continue to be opened at the position of the inner ring of the disk 7, so that more capacitors can be fixed on the disk 7, which is convenient for the detection of more capacitors.

[0049] The multilayer ceramic capacitor testing and screening method according to the above device comprises the following steps:

[0050] Step 1: Fix the capacitor. Place the capacitor in the placement opening above the disc 7, press the L-shaped fixing block 18 to actively retract the L-shaped fixing block 18 into the L-shaped groove. At this time, the control spring 2 19 is squeezed, and the blocking plate 15 is placed on the disc 7, and the blocking block 16 is overlapped with the upper surface of the capacitor. Release the L-shaped fixing block 18. Under the elastic force of the control spring 2 19, the L-shaped fixing block 18 is inserted into the fixing groove, and the capacitor is fixed.

[0051] Step 2: Instrument setting: connect the discharge assembly 3 to the terminal 4, and set the bridge resistance tester 1 to the continuous detection mode.

[0052] Step 3: Resistance measurement, start the drive motor 9, the drive motor 9 drives the disk 7 to rotate, the rotation of the disk 7 drives the capacitor to rotate, when the disk 7 rotates, the lap joint 11 overlaps with the insulating strip 14 of the disk 7, and no detection is performed at this time. When the lap joint 11 is aligned with the electrode of the capacitor up and down, the elastic force of the control spring 13 pushes the lap joint 11 to overlap with the electrode of the capacitor, and the drive motor 9 stops rotating. At this time, the terminal 4 is connected to the capacitor through the lap joint 11, and the bridge resistance tester 1 detects the resistance of the capacitor.

[0053] Step 4: Discharging the capacitor. After the detection is completed, the disc 7 continues to rotate through the driving motor 9. At this time, the hemispherical force of the lap joint 11 will be stored, and then it will be flush with the insulating strip 14. The lap joint 11 continues to be insulated. The detected capacitor moves to the discharge mechanism. The lap joint 11 at the discharge mechanism is overlapped with the electrode of the capacitor, and the discharge component 3 is discharged. The subsequent capacitor that has not been measured is moved to the top of the lap joint 11 of the bridge resistance tester 1 to detect the next capacitor, so that the detection of one capacitor in one week can be achieved.

[0054] Step 5: Adjust the position of the disk 7. After the capacitors in one circle of the disk 7 are tested and discharged, rotate the rotating operating rod 707. The rotating operating rod 707 drives the active bevel gear to rotate. At this time, the driven bevel gear drives the threaded rod 706 to rotate. Under the limit of the through hole, the circular plate 705 moves. The circular plate 705 is fixedly connected to the arc-shaped movable plate 702. The circular plate 705 drives the arc-shaped movable plate 702 to move, and makes multiple arc-shaped movable plates 702 move synchronously. The placement port located in the inner circle moves to the top of the lap joint 11. Since the insulating strip 14 is arc-shaped all around, it will not block the lap joint 11. At this time, repeat the third and fourth steps to perform the inner circle capacitor test.

[0055] Each embodiment in this specification is described in a progressive manner, and the same or similar parts between the embodiments can be referred to each other, and each embodiment focuses on the differences from other embodiments. In particular, for the system embodiment, since it is basically similar to the method embodiment, the description is relatively simple, and the relevant parts can be referred to the partial description of the method embodiment.

[0056] The above description is only an embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent substitution, improvement, etc. made within the spirit and principle of the present invention should be included in the scope of the claims of the present invention.

Claims

1. A multilayer ceramic capacitor testing device, comprising a bridge resistance tester (1), a discharge workbench (2) and a discharge assembly (3), characterized in that: A disc (7) is rotatably mounted on the upper surface of the discharge workbench (2); a driving motor (9) for driving the disc (7) to rotate is mounted on the lower surface of the disc (7); a placement opening is provided on the upper surface of the disc (7); a vertical receiving strip (8) is fixedly connected to the inner bottom of the placement opening; and a blocking plate (15) for fixing a capacitor is mounted on the upper surface of the disc (7); The connection points of the bridge resistance tester (1) and the discharge assembly (3) are both equipped with a connection head (4), the connection head (4) is electrically connected to a vertical lap joint (11), the lap joint (11) is located below the placement opening of the disc (7), and an insulating strip (14) is installed on the lower surface of the disc (7).

2. The multilayer ceramic capacitor testing device according to claim 1, characterized in that: A connecting block (17) is fixedly connected to a side of the blocking plate (15) facing the disc (7); an L-shaped groove passing through the blocking plate (15) is provided on the surface of the connecting block (17); an L-shaped fixing block (18) is slidably connected to the inner wall of the L-shaped groove; and a control spring 2 (19) is fixedly connected to the opposite surface of the L-shaped fixing block (18) and the L-shaped groove.

3. The multilayer ceramic capacitor testing device according to claim 2, characterized in that: The upper surface of the disk (7) is provided with a connection groove, the connection block (17) is located inside the connection groove, and a fixing groove is provided inside the connection groove, and the L-shaped fixing block (18) is inserted into the fixing groove under the elastic force of the second control spring (19).

4. The multilayer ceramic capacitor testing device according to claim 3, characterized in that: A guide box (10) is installed at the front end of the wiring head (4), a through hole is opened on the upper surface of the guide box (10), a lap joint (11) is slidably installed inside the through hole, an insulating pad (12) is installed at the bottom of the lap joint (11), a control spring (13) is fixedly connected to the opposite surface of the insulating pad (12) and the guide box (10), and the top of the lap joint (11) is hemispherical.

5. The multilayer ceramic capacitor testing device according to claim 4, characterized in that: The upper surface of the discharge workbench (2) is fixedly connected to a concave seat (5), a terminal head (4) is located inside the concave seat (5), and a tightening bolt (6) is threadedly connected to the side of the concave seat (5), the threaded end of the tightening bolt (6) is pressed against the surface of the insulating hand-held part of the terminal head (4), the distance between the two terminal heads (4) is the same as the distance between the two electrodes of the capacitor, and the edges of the insulating strip (14) are all in arc shape.

6. The multilayer ceramic capacitor testing device according to claim 5, characterized in that: The disk (7) comprises a main disk (701) and an arc-shaped movable plate (702). The number of the arc-shaped movable plates (702) is multiple, and the multiple arc-shaped movable plates (702) are arranged in a circular array on the surface of the main disk (701). The inner annular surface of the arc-shaped movable plate (702) is fixedly connected with a T-shaped connecting rod (703). The surface of the main disk (701) is provided with a T-shaped slideway, and the T-shaped connecting rod (703) is slidably installed inside the T-shaped slideway.

7. The multilayer ceramic capacitor testing device according to claim 6, characterized in that: A control box (704) is fixedly connected to the upper surface of the disk (7), and a circular plate (705) penetrating the control box (704) is slidably mounted on the control box (704) in the direction of the arc-shaped movable plate (702), and one end of the circular plate (705) away from the control box (704) is fixedly connected to the arc-shaped movable plate (702).

8. The multilayer ceramic capacitor testing device according to claim 7, characterized in that: The inner wall of the control box (704) is rotatably connected with a threaded rod (706), the surface of the circular plate (705) is provided with a threaded hole, the surface of the threaded rod (706) is threadedly connected to the inner wall of the threaded hole, and a rotating operating rod (707) penetrating the control box (704) is rotatably installed on the upper surface of the control box (704), and the rotating operating rod (707) drives the threaded rod (706) to rotate through a bevel gear set.

9. The test screening method of a multilayer ceramic capacitor test device according to claim 8, characterized in that: The following steps are involved: The first step: fixing the capacitor, placing the capacitor in the placement opening above the disc (7) and fixing it with a blocking plate (15); Step 2: Instrument setting: Set the bridge resistance tester (1) to continuous detection mode; Step 3: resistance measurement, start the drive motor (9), the drive motor (9) drives the disk (7) to rotate, so that the capacitor on the disk (7) moves to the top of the bridge resistance tester (1) for resistance detection; Step 4: Discharging the capacitor. After the detection is completed, the drive motor (9) continues to drive the disc (7) to rotate, and the capacitor is discharged through the discharge component (3); Step 5: Adjust the position of the disk (7). After the capacitors around the disk (7) are tested and discharged, rotate the rotary operating rod (707) to move the arc-shaped movable plate (702) so that the placement opening located in the inner circle is moved to the top of the lap joint (11). At this time, repeat the third and fourth steps to perform the inner circle capacitor test.

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