Test fixture for chip capacitor

Abstract

The invention belongs to the technical field of capacitor detection equipment, and particularly relates to a chip capacitor test fixture which comprises a capacitor fixture, connecting parts are symmetrically arranged on the two sides of the outer surface of the capacitor fixture, the capacitor fixture comprises side clamping plates, and adjusting elastic plates are symmetrically arranged on the sides, close to the axis, of the outer surfaces of the side clamping plates. And inner push sliding rods are symmetrically arranged on the other sides of the outer surfaces of the side edge clamping plates. According to the device, the capacitor placed inside can be fixed and clamped through the adjustable side clamping plates on the two sides, the joint part of the capacitor is replaced by the internally-attached switching disc, and after a wire of a tester is inserted into the fixed box shell, the wire can be directly contacted and tightly attached to a butt-joint guide head of the internally-attached switching disc under the clamping action of the adjusting clamping arms, so that the tester can be conveniently tested. Therefore, in the process of testing the capacitor, the problem that the test result is deviated due to the fact that the clamp shunts the output current of the tester is solved.

Description

Technical Field

[0001] The invention belongs to the technical field of capacitance detection equipment, in particular to a test fixture for chip capacitors. Background Art

[0002] Chip capacitors are a type of capacitor material. The full name of chip capacitors is multilayer or stacked ceramic capacitors, also known as chip capacitors and chip capacitors. There are two ways to represent chip capacitors, one is in inches and the other is in millimeters. Chip capacitors are used in large quantities in electrical equipment. When a chip capacitor fails, it is necessary to perform an aging test on the chip capacitor.

[0003] Since the chip capacitor may be small, it is difficult for the tester's wire connector to be tightly attached to the capacitor throughout the test under normal circumstances, which may cause the current to be easily interrupted and the test results to have large deviations. Therefore, an auxiliary fixture is needed to fasten the tester's wire end and the capacitor together. General fixtures are often indirectly connected to the capacitor components clamped inside by transferring the tester's wire end, so there will be a problem of the fixture shunting the tester's output current, causing deviations in the test results, so improvements are needed. Summary of the invention

[0004] In view of the deficiencies of the prior art, the present invention solves the technical problems by adopting a technical solution: a test fixture for a patch capacitor, comprising a capacitor fixture, wherein connecting components are symmetrically arranged on both sides of the outer surface of the capacitor fixture;

[0005] The capacitor clamp includes a side clamp, an adjusting spring plate is symmetrically arranged on one side of the outer surface of the side clamp close to the axis, an inner push slide rod is symmetrically arranged on the other side of the outer surface of the side clamp, an end of the inner push slide rod away from the side clamp is fixedly connected to the outer push plate, threaded rotating rods are symmetrically arranged on both sides of the inner wall of the outer push plate, and an end of the threaded rotating rod away from the inner push slide rod is fixedly connected to a rotating handle. When the threaded rotating rod is rotated by rotating the handle, the other end of the threaded rotating rod is restricted, so the threaded rotating rod can only rotate on its own. At this time, the outer push plate on the outer surface of the threaded rotating rod will move along the thread groove of the threaded rotating rod, thereby achieving the effect of pushing the outer push plate;

[0006] The side clamping plate includes a receiving clamping plate. In the middle of the inner cavity of the receiving clamping plate, an inner attachment adapter plate is fixedly connected. On one side of the inner cavity of the inner attachment adapter plate away from the inner push rod, guiding spacer pads are evenly arranged. On one side of the inner cavity of the inner attachment adapter plate close to the inner push rod, a docking guide head is fixedly connected. The inner attachment adapter plate is connected to the electrodes of the chip capacitor through the guiding spacer pads and is connected to the wiring head of the detector through the docking guide head. On the upper and lower sides of the inner wall of the receiving clamping plate, pressure-sensitive inner plates are symmetrically arranged. In the inner cavity of the pressure-sensitive inner plate, spring pressing blocks are evenly arranged. The connecting component includes a fixed box housing. At the axis of the inner cavity of the fixed box housing, an expansion socket is opened. On the upper and lower sides of the inner wall of the fixed box housing, traction slide rails are symmetrically arranged. On the left side of the inner wall of the traction slide rail, an adjusting clamping arm is slidably connected. On the front and back sides of the inner wall of the fixed box housing, blocking components are symmetrically arranged.

[0007] Further, on the upper and lower sides of the inner cavity of the fixed box housing, guiding inner grooves are symmetrically opened. The inner wall of the guiding inner groove is slidably connected to the outer surface of the receiving clamping plate. The outer surface of the inner push rod is slidably connected to the inner wall of the guiding inner groove. One end of the inner push rod away from the receiving clamping plate extends to the outside of the fixed box housing through the guiding inner groove. On one side of the outer surface of the receiving clamping plate away from the adjusting spring plate, guiding rotating cylinders are symmetrically arranged. One end of the threaded rod away from the rotating handle is rotatably connected to the inner wall of the guiding rotating cylinder. The outer surface of the threaded rod is threadedly connected to the inner wall of the outer push plate through a threaded groove. The number of the receiving clamping plates is two. One side of the outer surface of the receiving clamping plate away from the fixed box housing is fixedly connected to the side surface of the adjusting spring plate. The outer surface of the spring pressing block extends to the outside of the receiving clamping plate through an adapting cutting groove. The outer surface of the pressure-sensitive inner plate is fixedly connected to the inner wall of the receiving clamping plate.

[0008] Further, the adjusting clamping arm includes a vertical push cylinder. At the bottom end of the output shaft of the vertical push cylinder, an arc-shaped clamping plate is fixedly connected. On both sides of the inner cavity of the arc-shaped clamping plate, built-in pressing rods are symmetrically arranged. At the top of the built-in pressing rod, a compression spring is fixedly connected. At the top of the compression spring, a socket top cover is fixedly connected. The outer surface of the vertical push cylinder is slidably connected to the inner wall of the traction slide rail. The outer surface of the traction slide rail is fixedly connected to the inner wall of the fixed box housing. The lower surface of the socket top cover is fixedly connected to the upper surface of the arc-shaped clamping plate. At the axis of the inner cavity of the socket top cover, it is fixedly connected to the outer surface of the output shaft of the vertical push cylinder.

[0009] Further, the blocking component includes a wall-attached box shell, an inner pushing plate is slidably connected to the inner wall of the wall-attached box shell, connecting card frames are symmetrically arranged on the upper and lower sides of the outer surface of the inner pushing plate, rotating motors are symmetrically arranged on both sides of the inner cavity of the inner pushing plate through push rods, a striped rotating column is fixedly connected to the outer surface of the output shaft of the rotating motor, and the inner pushing plate is connected to the rotating motor outside the wall-attached box shell through a telescopic push rod, and the rotating motor is controlled to move horizontally through the push rod to adjust the distance between the striped rotating column and the instrument joint. Guide chutes are symmetrically opened in the front part of the inner cavity of the wall-attached box shell, the outer surface of the rotating motor is slidably connected to the inner cavity of the guide chute through the push rod, the bottom end of the connecting card frame is fixedly connected to the outer surface of the inner pushing plate, and the front end of the connecting card frame is fixedly connected to the outer surface of the vertical pushing cylinder. The number of the wall-attached box shells is four, and the outer surface of the wall-attached box shell is fixedly connected to the inner wall of the fixed box shell. The number of the connecting card frames is eight, and the outer surface of the striped rotating column is rotatably connected to the inner pushing plate through the rotating motor.

[0010] The beneficial effects of the present invention are as follows:

[0011] 1. The device can fixedly clamp the capacitor placed inside through the adjustable side clamping plates on both sides, replace the joint part of the capacitor with the inner pasted adapter plate, and after the wire of the tester is inserted into the fixed box shell, it can directly contact and closely adhere to the docking guide head of the inner pasted adapter plate under the clamping action of the adjustable clamping arm, thereby bypassing most of the adapter components to achieve the connection effect with the capacitor. Therefore, during the process of testing the capacitor, the problem that the test result is deviated due to the shunting of the output current of the tester by the fixture will not occur.

[0012] 2. By manually screwing the rotating handle, the accommodating clamping plate is pushed forward in a relatively slow manner, ensuring that the accommodating clamping plate can clamp the capacitor inside with a relatively appropriate force, and at the same time, the capacitor will not be severely damaged due to excessive clamping force. Before the inner wall of the accommodating clamping plate fits with the outer surface of the capacitor, the spring pressing block will first contact the outer surface of the capacitor for a probing operation. After triggering the pressure-sensitive inner plate, the operator can slow down the pushing operation to avoid the problem that the capacitor is squeezed too hard due to the operator's too fast pushing.

[0013] 3. In order to ensure that the device can accommodate thicker wires, the size of the expansion socket is relatively large. Therefore, after the wire passes through the expansion socket, the vertical pushing cylinders on the upper and lower sides will push the corresponding arc-shaped clamping plates towards the middle, and the outer surface of the wire is clamped and fixed by the arc-shaped clamping plates. Before the inner wall of the arc-shaped clamping plate contacts the outer surface of the wire, the built-in pressure rods protruding on both sides will first contact the outer surface of the wire and then press against the inner wall of the socket top cover. At this time, the vertical pushing cylinder will decelerate in advance to prevent the extrusion force applied to the wire from being too large.

[0014] 4. When conducting the testing work, if the capacitor is about to be broken down, the current in the circuit will increase at this time. Consequently, the current passing through the inner-attached transfer plate will also become larger. Then, the rotating motor will start the striped rotating column. When the striped rotating column rotates, it will drive the wire to slide relative to the arc-shaped clamping plate towards the side away from the docking guide head through rolling friction, physically disconnecting the tester from the capacitor, playing a protective role and preventing problems such as damage to internal components caused by the breakdown of the capacitor. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is the front view of the present invention;

[0016] Figure 2 is the sectional view of the present invention;

[0017] Figure 3 is the sectional view of the capacitor fixture of the present invention;

[0018] Figure 4 is the sectional view of the side clamping plate of the present invention;

[0019] Figure 5 is the sectional view of the connecting component of the present invention;

[0020] Figure 6 is the sectional view of the adjusting clamping arm of the present invention;

[0021] Figure 7 is the structural schematic diagram of the blocking component of the present invention.

[0022] In the figures: 1. Capacitor fixture; 2. Connecting component; 11. Adjusting elastic plate; 12. Inner pushing sliding rod; 13. Outer pushing plate; 14. Threaded rotating rod; 15. Rotating handle; 3. Side clamping plate; 31. Accommodating clamping plate; 32. Inner-attached transfer plate; 33. Conductive connecting gasket; 34. Docking guide head; 35. Pressure-sensing inner plate; 36. Spring pressing block; 21. Fixed box shell; 22. Guiding inner groove; 23. Expanding socket; 24. Guiding rotating cylinder; 25. Traction sliding rail; 4. Adjusting clamping arm; 41. Vertical pushing cylinder; 42. Arc-shaped clamping plate; 43. Built-in pressing rod; 44. Compression spring; 45. Socket top cover; 5. Blocking component; 51. Wall-attached box shell; 52. Guiding sliding groove; 53. Inner pushing plate; 54. Connecting bracket; 55. Rotating motor; 56. Striped rotating column. DETAILED DESCRIPTION OF THE INVENTION

[0023] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments. The embodiments of the present invention are given for the purpose of illustration and description, and are not exhaustive or limit the present invention to the disclosed form. Many modifications and variations are obvious to those of ordinary skill in the art. The embodiments are selected and described to better illustrate the principles and practical applications of the present invention, and enable those of ordinary skill in the art to understand the present invention and thus design various embodiments with various modifications suitable for specific purposes.

[0024] Example 1, please refer to Figures 1-5 , the present invention provides a technical solution: a test fixture for a chip capacitor, including a capacitor fixture 1, and connection components 2 are symmetrically arranged on both sides of the outer surface of the capacitor fixture 1;

[0025] The capacitor fixture 1 includes side clamping plates 3. On one side of the outer surface of the side clamping plates 3 close to the axis, adjusting elastic plates 11 are symmetrically arranged. On the other side of the outer surface of the side clamping plates 3, inner pushing sliding rods 12 are symmetrically arranged. One end of the inner pushing sliding rod 12 away from the side clamping plate 3 is fixedly connected to an outer pushing plate 13. On both sides of the inner wall of the outer pushing plate 13, threaded rotating rods 14 are symmetrically arranged. One end of the threaded rotating rod 14 away from the inner pushing sliding rod 12 is fixedly connected to a rotating handle 15. When the threaded rotating rod 14 is rotated by the rotating handle 15, since the other end of the threaded rotating rod 14 is restricted, the threaded rotating rod 14 can only rotate self. At this time, the outer pushing plate 13 on the outer surface of the threaded rotating rod 14 will move along the thread groove of the threaded rotating rod 14, thereby achieving the effect of pushing the outer pushing plate 13;

[0026] The side clamping plates 3 include receiving clamping plates 31. In the middle of the inner cavity of the receiving clamping plates 31, an inner pasting adapter plate 32 is fixedly connected. On one side of the inner cavity of the inner pasting adapter plate 32 away from the inner pushing sliding rod 12, conducting gaskets 33 are evenly arranged. On one side of the inner cavity of the inner pasting adapter plate 32 close to the inner pushing sliding rod 12, a docking guide head 34 is fixedly connected. The inner pasting adapter plate 32 is connected to the electrodes of the chip capacitor through the conducting gaskets 33, and is connected to the wiring head of the detector through the docking guide head 34. On the upper and lower sides of the inner wall of the receiving clamping plates 31, pressure-sensitive inner plates 35 are symmetrically arranged. In the inner cavity of the pressure-sensitive inner plates 35, spring blocks 36 are evenly arranged; The connection components 2 include a fixed box shell 21. An expansion socket 23 is opened at the axis of the inner cavity of the fixed box shell 21. On the upper and lower sides of the inner wall of the fixed box shell 21, traction slide rails 25 are symmetrically arranged. On the left side of the inner wall of the traction slide rails 25, an adjusting clamping arm 4 is slidably connected. On the front and back sides of the inner wall of the fixed box shell 21, blocking components 5 are symmetrically arranged.

[0027] On the upper and lower sides of the inner cavity of the fixed box shell 21, guiding inner grooves 22 are symmetrically opened. The inner wall of the guiding inner groove 22 is slidably connected to the outer surface of the accommodating clamping plate 31. The outer surface of the inner pushing slide rod 12 is slidably connected to the inner wall of the guiding inner groove 22. One end of the inner pushing slide rod 12 far from the accommodating clamping plate 31 extends to the outside of the fixed box shell 21 through the guiding inner groove 22. On one side of the outer surface of the accommodating clamping plate 31 far from the adjusting elastic plate 11, guiding rotating cylinders 24 are symmetrically arranged. One end of the threaded rotating rod 14 far from the rotating handle 15 is rotatably connected to the inner wall of the guiding rotating cylinder 24. The outer surface of the threaded rotating rod 14 is threadedly connected to the inner wall of the outer pushing plate 13 through a threaded groove. The number of the accommodating clamping plates 31 is two. One side of the outer surface of the accommodating clamping plate 31 far from the fixed box shell 21 is fixedly connected to the side surface of the adjusting elastic plate 11. The outer surface of the spring pressing block 36 extends to the outside of the accommodating clamping plate 31 through an adapting cutting groove. The outer surface of the pressure sensing inner plate 35 is fixedly connected to the inner wall of the accommodating clamping plate 31.

[0028] When using this device to detect the capacitance, insert the capacitance vertically into the middle of the device, that is, the reserved area between the two side clamping plates 3 on both sides. However, directly placing the capacitance will cause the capacitance to slide out from the inside of the device. Therefore, it is also necessary to adjust the distance between the two side clamping plates 3 according to the actual size of the capacitance. The operator drives the outer pushing plate 13 to slide in a threaded advancing manner by screwing the rotating handle 15, and drives the accommodating clamping plate 31 to slide out from the inside of the fixed box shell 21 through the inner pushing slide rod 12. At this time, the two accommodating clamping plates 31 on both sides gradually clamp and fix the capacitance.

[0029] When the accommodating clamping plate 31 moves towards the side close to the capacitance, the spring pressing blocks 36 on the upper and lower sides of the accommodating clamping plate 31 will first contact the side of the capacitance, thereby pressing the spring pressing blocks 36 towards the pressure sensing inner plate 35. At this time, the operator reduces the advancing speed of the accommodating clamping plate 31 according to the triggered pressure sensing inner plate 35, and then clamps the capacitance through the two accommodating clamping plates 31 on both sides. At this time, the two inner attaching adapter plates 32 also contact the conductive side of the outer surface of the capacitance through the conducting gaskets 33.

[0030] After completing the setting work of the capacitance, the operator inserts the wire ends connected to both ends of the tester into the two expansion sockets 23 on both sides respectively. At this time, the two adjusting clamping arms 4 clamp the wire ends, and then through the movement of the traction slide rail 25, press and fix the wire ends on the outer surface of the docking guide head 34. At this time, the tester can be docked with the capacitance in a relatively tight manner through the conductive function of the inner attaching adapter plate 32 to test the capacitance.

[0031] Example 2, please refer to Figures 1-7, the present invention provides a technical solution: on the basis of Embodiment 1, the adjusting clamping arm 4 includes a vertical push cylinder 41. The bottom end of the output shaft of the vertical push cylinder 41 is fixedly connected with an arc-shaped clamping plate 42. On both sides of the inner cavity of the arc-shaped clamping plate 42, built-in pressure rods 43 are symmetrically arranged. The top of the built-in pressure rod 43 is fixedly connected with a compression spring 44. The top of the compression spring 44 is fixedly connected with a socket top cover 45. The outer surface of the vertical push cylinder 41 is slidably connected with the inner wall of the traction slide rail 25. The outer surface of the traction slide rail 25 is fixedly connected with the inner wall of the fixed box shell 21. The lower surface of the socket top cover 45 is fixedly connected with the upper surface of the arc-shaped clamping plate 42. The axis of the inner cavity of the socket top cover 45 is fixedly connected with the outer surface of the output shaft of the vertical push cylinder 41.

[0032] The blocking component 5 includes a wall-attached box shell 51. A push plate 53 is slidably connected to the inner wall of the wall-attached box shell 51. On the upper and lower sides of the outer surface of the push plate 53, connecting brackets 54 are symmetrically arranged. On both sides of the inner cavity of the push plate 53, rotating motors 55 are symmetrically arranged through push rods. A striped rotating column 56 is fixedly connected to the outer surface of the output shaft of the rotating motor 55. The push plate 53 is connected to the rotating motor 55 outside the wall-attached box shell 51 through a telescopic push rod, and the rotating motor 55 is controlled to move horizontally through the push rod to adjust the distance between the striped rotating column 56 and the instrument joint. Guide chutes 52 are symmetrically opened in the front part of the inner cavity of the wall-attached box shell 51. The outer surface of the rotating motor 55 is slidably connected with the inner cavity of the guide chute 52 through a push rod. The bottom end of the connecting bracket 54 is fixedly connected with the outer surface of the push plate 53. The front end of the connecting bracket 54 is fixedly connected with the outer surface of the vertical push cylinder 41. The number of the wall-attached box shells 51 is four, and the outer surface of the wall-attached box shell 51 is fixedly connected with the inner wall of the fixed box shell 21. The number of the connecting brackets 54 is eight. The outer surface of the striped rotating column 56 is rotatably connected with the push plate 53 through the rotating motor 55.

[0033] In order to ensure that the device can accommodate thicker wires, the size of the expansion socket 23 is relatively large. Therefore, after the wire passes through the expansion socket 23, the vertical push cylinders 41 on the upper and lower sides will push the corresponding arc-shaped clamping plates 42 towards the middle, and the outer surface of the wire will be clamped and fixed by the arc-shaped clamping plates 42. Before the inner wall of the arc-shaped clamping plate 42 comes into contact with the outer surface of the wire, the built-in pressure rods 43 protruding on both sides will first come into contact with the outer surface of the wire, and then press against the inner wall of the socket top cover 45. At this time, the vertical push cylinder 41 will decelerate in advance to prevent the extrusion force applied to the wire from being too large.

[0034] When the traction slide rail 25 drives the vertical push cylinder 41 to slide towards the side close to the docking guide head 34, the vertical push cylinder 41 will drive the inner push plate 53 to slide synchronously through the connecting bracket 54. At this time, the striped rotating column 56 will also slide synchronously and always face the side of the wire clamping position. Through the sliding action of the push rod, the outer surface of the striped rotating column 56 is always in contact with the outer surface of the wire. When the capacitor is about to be broken down, the current in the circuit will increase at this time, and then the current passing through the inner attached adapter plate 32 will also become larger. Then the rotating motor 55 will start the striped rotating column 56. When the striped rotating column 56 rotates, it will drive the wire to slide relative to the arc-shaped clamping plate 42 towards the side away from the docking guide head 34 through rolling friction, physically disconnecting the tester from the capacitor and playing a protective role.

[0035] Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art and related fields without creative efforts shall fall within the scope of protection of the present invention. The structures, devices, and operation methods not specifically described and explained in the present invention, unless otherwise specified and limited, are implemented according to the conventional means in the art.

Claims

1. A test fixture for a chip capacitor, comprising a capacitor fixture (1), wherein connecting components (2) are symmetrically arranged on both sides of the outer surface of the capacitor fixture (1), and characterized in that: The capacitor clamp (1) comprises a side clamp (3), an adjusting spring plate (11) is symmetrically arranged on one side of the outer surface of the side clamp (3) close to the axis, an inner push slide rod (12) is symmetrically arranged on the other side of the outer surface of the side clamp (3), an end of the inner push slide rod (12) away from the side clamp (3) is fixedly connected to an outer push plate (13), threaded rotating rods (14) are symmetrically arranged on both sides of the inner wall of the outer push plate (13), and an end of the threaded rotating rod (14) away from the inner push slide rod (12) is fixedly connected to a rotating handle (15); The side clamp (3) includes a accommodating clamp (31), the middle part of the inner cavity of the accommodating clamp (31) is fixedly connected with an inner adapter plate (32), the inner cavity of the inner adapter plate (32) away from the inner push slide bar (12) is evenly provided with a guide gasket (33), the inner cavity of the inner adapter plate (32) is close to the inner push slide bar (12) and is fixedly connected with a docking guide head (34), the upper and lower sides of the inner wall of the accommodating clamp (31) are symmetrically provided with pressure-sensitive inner plates (35), and the inner cavity of the pressure-sensitive inner plate (35) is evenly provided with a spring pressure block (36); The connecting component (2) comprises a fixed box shell (21), an expansion socket (23) is provided at the axis center of the inner cavity of the fixed box shell (21), traction slide rails (25) are symmetrically arranged on the upper and lower sides of the inner wall of the fixed box shell (21), an adjustment clamp arm (4) is slidably connected to the left side of the inner wall of the traction slide rail (25), and blocking components (5) are symmetrically arranged on the front and rear sides of the inner wall of the fixed box shell (21).

2. The test fixture for chip capacitors according to claim 1, characterized in that: The upper and lower sides of the inner cavity of the fixed box shell (21) are symmetrically provided with guiding inner grooves (22), the inner wall of the guiding inner groove (22) is slidably connected to the outer surface of the accommodating clamp (31), the outer surface of the inner push slide rod (12) is slidably connected to the inner wall of the guiding inner groove (22), and one end of the inner push slide rod (12) away from the accommodating clamp (31) extends to the outside of the fixed box shell (21) through the guiding inner groove (22).

3. The test fixture for chip capacitors according to claim 2, characterized in that: A guide cylinder (24) is symmetrically arranged on one side of the outer surface of the accommodating clamping plate (31) away from the adjusting spring plate (11); one end of the threaded rotating rod (14) away from the rotating handle (15) is rotatably connected to the inner wall of the guide rotating cylinder (24); and the outer surface of the threaded rotating rod (14) is threadedly connected to the inner wall of the outer push plate (13) through a thread groove.

4. The test fixture for chip capacitors according to claim 3, characterized in that: The number of the accommodating splints (31) is two, and the side of the outer surface of the accommodating splint (31) away from the fixed box shell (21) is fixedly connected to the side of the adjusting spring plate (11), the outer surface of the spring pressure block (36) extends to the outside of the accommodating splint (31) through an adapting groove, and the outer surface of the pressure-sensitive inner plate (35) is fixedly connected to the inner wall of the accommodating splint (31).

5. The test fixture for chip capacitors according to claim 1, characterized in that: The adjustment clamp arm (4) comprises a vertical push cylinder (41), the bottom end of the output shaft of the vertical push cylinder (41) is fixedly connected to an arc-shaped clamp plate (42), built-in pressure rods (43) are symmetrically arranged on both sides of the inner cavity of the arc-shaped clamp plate (42), the top of the built-in pressure rod (43) is fixedly connected to a compression spring (44), and the top of the compression spring (44) is fixedly connected to a sleeve top cover (45).

6. The test fixture for chip capacitors according to claim 5, characterized in that: The outer surface of the vertical push cylinder (41) is slidably connected to the inner wall of the traction slide rail (25), the outer surface of the traction slide rail (25) is fixedly connected to the inner wall of the fixed box shell (21), the lower surface of the sleeve top cover (45) is fixedly connected to the upper surface of the arc clamping plate (42), and the axis center of the inner cavity of the sleeve top cover (45) is fixedly connected to the outer surface of the output shaft of the vertical push cylinder (41).

7. The test fixture for chip capacitors according to claim 6, characterized in that: The blocking component (5) comprises a wall-attached box shell (51), the inner wall of which is slidably connected to an inner push plate (53), the upper and lower sides of the outer surface of the inner push plate (53) are symmetrically provided with connecting brackets (54), and both sides of the inner cavity of the inner push plate (53) are symmetrically provided with a rotating motor (55) through a push rod, and the outer surface of the output shaft of the rotating motor (55) is fixedly connected to a striped rotating column (56).

8. The test fixture for chip capacitors according to claim 7, characterized in that: A guide slot (52) is symmetrically provided at the front of the inner cavity of the wall-attached box shell (51); the outer surface of the rotary motor (55) is slidably connected to the inner cavity of the guide slot (52) via a push rod; the bottom end of the connecting bracket (54) is fixedly connected to the outer surface of the inner push plate (53); and the front end of the connecting bracket (54) is fixedly connected to the outer surface of the vertical push cylinder (41).

9. The test fixture for chip capacitors according to claim 8, characterized in that: The number of the wall-attached box shells (51) is four, and the outer surface of the wall-attached box shells (51) is fixedly connected to the inner wall of the fixed box shell (21), the number of the connecting brackets (54) is eight, and the outer surface of the striped rotating column (56) is rotationally connected to the inner push plate (53) through a rotating motor (55).

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