Auxiliary mechanism for capacitance test

Abstract

The utility model relates to an auxiliary mechanism for capacitance testing in the field of capacitance testing, which comprises a supporting plate, a top plate is connected onto the supporting plate through a jacking assembly, a connecting plate is connected onto the top plate through a moving assembly, and more than two groups of clamping assemblies capable of opening, closing and clamping are connected onto the side surface of the connecting plate. A clamping driving part is arranged at one end of the connecting plate, a jacking driving part is arranged on the supporting plate, the top plate can drive the two or more sets of clamping assemblies to alternately ascend and descend through the connecting plate, one set of clamping assemblies and the clamping driving part are matched, and the clamping driving part can drive the other set of clamping assemblies to conduct opening and closing clamping actions. According to the utility model, through the arrangement of the multiple groups of clamping assemblies, the multiple groups of clamping assemblies can be controlled to carry out a clamping test on the capacitor, and the shutdown waiting time of the clamping test is reduced under the alternate switching of the multiple groups of clamping assemblies, so that the test process is more efficient and smoother, and the overall flexibility and the test efficiency of the test process are improved at the same time.

Description

Technical Field

[0001] This utility model relates to the field of capacitance testing, and specifically to an auxiliary mechanism for capacitance testing. Background Technology

[0002] Supercapacitors, also known as electrochemical capacitors or electric double-layer capacitors, are an innovative energy storage technology that falls between traditional capacitors and batteries. Their working principle is based on charge separation and electric field storage, achieving efficient energy storage through electrolyte polarization. This process is highly reversible, allowing supercapacitors to cycle up to hundreds of thousands of times. With their high power density, long cycle life, rapid charge-discharge capability, and stable operation over a wide temperature range, supercapacitors have shown broad application prospects in numerous fields.

[0003] During static capacitance testing, auxiliary mechanisms are typically required to ensure accuracy and safety, enabling movement, lifting, and positioning. Existing auxiliary mechanisms mainly consist of a mechanical structure, a transmission system, and a test assembly. The transmission system controls the mechanical structure to move the test assembly to test the capacitor. Capacitance testing generally uses the test assembly to clamp the capacitor's terminals, allowing for testing of capacitance, ESR (equivalent series resistance), and leakage current.

[0004] However, although existing auxiliary mechanisms meet the needs of static capacitance testing to a certain extent, some shortcomings still exist. When performing static capacitance testing, existing technologies typically use a set of test groups to clamp the capacitors being fed into the test. When a set of test groups is used for clamping testing, the capacitor delivery line usually needs to be stopped for a long time, which increases the testing time and inconvenience during the testing process. Furthermore, the test versatility and flexibility of a set of test groups are poor, affecting the testing efficiency and production efficiency of capacitors. Utility Model Content

[0005] The purpose of this invention is to address the above-mentioned shortcomings and provide an auxiliary mechanism for capacitor testing. This addresses the technical problem in the prior art where existing capacitor testing groups generally require shutdown and waiting for testing, resulting in poor flexibility of the testing group and thus affecting the testing and production efficiency of capacitors.

[0006] The objective of this utility model is achieved through the following means:

[0007] An auxiliary mechanism for capacitance testing includes a support plate, a top plate connected to the support plate via a lifting assembly, and a connecting plate connected to the top plate via a moving assembly. Two or more clamping assemblies capable of opening and closing are connected to the side of the connecting plate. These clamping assemblies are used to clamp capacitor leads. One end of the connecting plate is equipped with a clamping drive for driving the clamping assemblies to open and close. The support plate is equipped with a lifting drive for driving the lifting assembly to move the top plate up and down. The top plate, through the connecting plate, can drive two or more sets of clamping assemblies to move up and down alternately, and pair one set of clamping assemblies with a clamping drive. The clamping drive can then drive one set of clamping assemblies to open and close.

[0008] Furthermore, as described above, the lifting assembly includes multiple guide columns and guide bushings. The guide bushings are mounted on the support plate, and the guide columns and guide bushings are paired and installed so that the guide columns can move up and down along the axial direction of the guide bushings. The top plate is mounted on the top of the guide columns.

[0009] The connection between the guide column and the top plate allows the guide column to move axially along the guide bushing, which in turn drives the top plate to move up and down.

[0010] Furthermore, as described above, the lifting drive includes a lifting driver, an inclined sliding block, and a connecting rod. The inclined sliding block is mounted on the support plate via a slide rail, and an inclined groove is provided on the inclined sliding block. The connecting rod is connected to the top plate via a connecting seat, and the end of the connecting rod is paired with the inclined groove and can slide along the inclined groove. The lifting driver is mounted on the support frame and connected to the inclined sliding block via the connecting frame. The lifting driver can drive the inclined sliding block to move along the slide rail.

[0011] Specifically, the lifting driver drives the connecting frame to move the inclined top slider along the slide rail. Since the top plate is connected through the lifting assembly, the inclined top slider can drive the connecting rod through the inclined groove to adjust the lifting of the top plate.

[0012] Furthermore, as described above, the moving component includes a moving cylinder and a sliding member, both of which are mounted on the top plate. The telescopic end of the moving cylinder is connected to a connecting plate, and the sliding member is paired with the connecting plate via a connecting block.

[0013] The connecting plate is moved by a moving cylinder, which in turn moves and adjusts the clamping assembly.

[0014] Furthermore, as described above, a buffer is provided on the support plate, with one end of the buffer extending toward the slide rail.

[0015] Further as described above, the side of the connecting plate is connected to the clamping assembly via a fixed seat. The clamping assembly includes a test plate and a test rack. The test rack is provided with several upper and lower clamps. The upper and lower clamps are symmetrically hinged to the fixed seat via upper and lower connecting brackets, respectively. The test plate is installed on the fixed seat and positioned between the upper and lower clamps. The fixed seat is connected to an opening shaft for driving the upper and lower connecting brackets to open or close relative to each other. One end of the opening shaft passes through the fixed seat and is paired with the clamping drive component.

[0016] Optionally, two sets of clamping components are provided, and the two sets of clamping components are spaced vertically and connected to the connecting plate. The top plate can be raised and lowered by the lifting drive component, so that the top plate can drive the two sets of clamping components to rise and fall alternately, so that the multiple sets of clamping components work alternately, further improving the efficiency of capacitor clamping test and production efficiency.

[0017] Specifically, the end of the clamping shaft extends through the fixed base toward the clamping drive and forms a control end for mating the clamping drive.

[0018] The upper and lower jaws are hinged to the fixed base via the upper and lower connecting brackets, allowing the upper and lower jaws to open or close relative to each other. The upper and lower jaws open and close relative to the upper and lower surfaces of the test board, respectively, so that they can be used to clamp or release the leads of the capacitor.

[0019] Furthermore, as described above, both the upper and lower connecting brackets are connected to rollers for controlling opening and closing, and the outer surface of the clamping shaft is provided with a clamping part and an opening part that are paired with the rollers.

[0020] Specifically, in the clamping state, the clamping drive drives the opening shaft to rotate, so that the clamping part of the opening shaft contacts the outer surface of the roller. Through the squeezing of the roller by the clamping part, the upper / lower connecting bracket can be driven to close the upper / lower jaws towards the test board under the hinge of the hinge shaft, thereby clamping the capacitor pins.

[0021] In the released state, the clamping drive drives the opening shaft to rotate, causing the clamping part of the opening shaft to release the pressure on the roller. The opening part is provided with a groove to avoid the pressure on the roller. At this time, the upper / lower connecting bracket is reset under the action of the hinge shaft, which can drive the upper / lower grippers to release the clamping of the capacitor pin.

[0022] Further as described above, the clamping drive includes a bearing housing, a rack, a gear, a control component, and a clamping driver. The bearing housing is mounted on the support plate via a movable component and can slide along the movable component. One side of the bearing housing is clamped and paired with the connecting plate. The gear is rotatably mounted on the bearing housing via a bearing. The control component is paired and connected with the gear. One end of the control component extends towards the end of the clamping shaft, and the control component has an insertion slot for mates with the clamping shaft. The rack is mounted on the bearing housing and meshes with the gear. The clamping driver is mounted on the bearing housing and can drive the rack to rotate the gear.

[0023] Specifically, the insertion slot is designed to be conductive. The lifting drive unit drives the clamping assembly to move up and down, causing a set of clamping assemblies to move toward the clamping drive unit. The control end of the opening shaft is paired with the insertion slot, thereby causing the control unit to drive the opening shaft to rotate, which can control the clamping and releasing of the upper / lower jaws.

[0024] Furthermore, as described above, a charging conversion board is connected to the top of the top plate, and the charging conversion board is electrically connected to the upper and lower grippers via electrical components.

[0025] The charging conversion board is electrically connected to the upper and lower jaws, allowing the upper and lower jaws to hold the capacitor pins for charging testing.

[0026] The beneficial effects of this utility model are as follows: The top plate is connected to the support plate via a lifting assembly, enabling flexible lifting and lowering of the top plate and all its components. The top plate is connected to the connecting plate via a moving assembly, allowing the connecting plate and its clamping components to move and position along the moving assembly. The connecting plate is equipped with two or more sets of clamping components capable of opening and closing. Driven by the lifting drive, the top plate moves the clamping components on the connecting plate alternately up and down along the lifting assembly, thus enabling the switching and pairing of two or more sets of clamping components with the clamping drive. The clamping drive can control one set of clamping components to open and close. The multiple sets of clamping components allow for control of multiple sets of clamping components to perform clamping tests on capacitors. The alternating switching of multiple sets of clamping components reduces downtime during clamping tests, making the testing process more efficient and smooth, while also improving the overall flexibility and efficiency of the testing process. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the overall structure in the first direction of this embodiment;

[0028] Figure 2 This is a schematic diagram of the overall structure in the second direction of this embodiment;

[0029] Figure 3 This is a schematic diagram of the connection structure of the lifting drive component in this embodiment;

[0030] Figure 4 This is a schematic diagram of the overall structure of the clamping component in this embodiment;

[0031] Figure 5 This is a schematic diagram of the open state of the clamping component in this embodiment;

[0032] Figure 6 for Figure 5 A magnified view of part A in the diagram;

[0033] Figure 7 This is a schematic diagram of the clamping drive component in this embodiment;

[0034] Figure 8 This is a schematic diagram showing the connection between the auxiliary mechanism for capacitance testing and the conveyor line in this embodiment;

[0035] Figure 9 This is a side view showing the connection between the auxiliary mechanism for capacitance testing and the conveyor line in this embodiment; the reference numerals in the figure are as follows:

[0036] 100-Support plate, 200-Top plate, 300-Connecting plate, 400-Buffer, 500-Fixed seat, 600-Conveyor line, 700-Capacitor;

[0037] 10-Lifting assembly, 11-Guide column, 12-Guide bushing;

[0038] 20-Moving component, 21-Moving cylinder, 22-Sliding component, 23-Connecting block;

[0039] 30-Clamping assembly, 31-Test plate, 32-Test rack, 33-Upper gripper, 34-Lower gripper, 35-Upper connecting bracket, 36-Lower connecting bracket, 37-Roller, 38-Clamping shaft, 381-Clamping part, 382-Opening part;

[0040] 40-Clamping drive component, 41-Bearing housing, 42-Rack, 43-Gear, 44-Control component, 45-Clamping driver, 46-Moving component, 47-Intercepting slot;

[0041] 50-Lifting drive component, 51-Lifting driver, 52-Angled slide block, 53-Connecting rod, 54-Angled groove, 55-Connecting seat, 56-Connecting frame, 57-Slide rail. Detailed Implementation

[0042] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0043] In this embodiment, refer to Figures 1-9The auxiliary mechanism for capacitor testing, specifically implemented therein, includes a support plate 100. A top plate 200 is connected to the support plate 100 via a lifting assembly 10. A connecting plate 300 is connected to the top plate 200 via a moving assembly 20. Two or more clamping assemblies 30 capable of opening and closing are connected to the side of the connecting plate 300. The clamping assemblies 30 are used to clamp the pins of capacitor 700. One end of the connecting plate 300 is provided with a clamping drive 40 for driving the clamping assemblies 30 to open and close. The support plate 100 is provided with a lifting drive 50 for driving the lifting assembly 10 to move the top plate 200 up and down. The top plate 200 can drive two or more clamping assemblies 30 to move up and down alternately via the connecting plate 300, and pair one set of clamping assemblies 30 with the clamping drive 40. The clamping drive 40 can drive one set of clamping assemblies 30 to open and close.

[0044] Reference Figure 1-3 The lifting assembly 10 includes five guide columns 11 and paired guide sleeves 12. The guide sleeves 12 are mounted on the support plate 100. The guide columns 11 and guide sleeves 12 are paired and connected, allowing the guide columns 11 to move up and down along the axial direction of the guide sleeves 12. The top plate 200 is mounted on the top of the guide columns 11. Through the connection between the guide columns 11 and the top plate 200, the axial movement of the guide columns 11 along the guide sleeves 12 can drive the top plate 200 to move up and down.

[0045] Reference Figure 3 The lifting drive component 50 includes a lifting driver 51, an inclined sliding block 52, and a connecting rod 53. The inclined sliding block 52 is mounted on the support plate 100 via a slide rail 57, and an inclined groove 54 is provided on the inclined sliding block 52. The connecting rod 53 is connected to the top plate 200 via a connecting seat 55, and the end of the connecting rod 53 is paired with the inclined groove 54 and can slide along the inclined groove 54. The lifting driver 51 is mounted on the support frame and connected to the inclined sliding block 52 via a connecting frame 56. The lifting driver 51 can drive the inclined sliding block 52 to move along the slide rail 57.

[0046] Specifically, the lifting driver 51 drives the connecting frame 56 to move the inclined sliding block 52 along the slide rail 57. Since the top plate 200 is connected through the lifting assembly 10, the inclined sliding block 52 can drive the connecting rod 53 through the inclined groove 54 to adjust the height of the top plate 200.

[0047] The top plate 200 drives the two sets of clamping components 30 to move up and down via the connecting plate 300, allowing the two sets of clamping components 30 to alternately switch between clamping and picking up materials for testing and unloading materials awaiting incoming materials. At the same time, the two sets of clamping components 30 can prepare or test multiple capacitors 700 in parallel within the same test cycle, greatly improving the parallel processing capability and overall test efficiency.

[0048] Reference Figure 3 The moving component 20 includes a moving cylinder 21 and a slider 22, both mounted on the top plate 200. The telescopic end of the moving cylinder 21 is connected to the connecting plate 300, and the connecting plate 300 is paired with the slider 22 via a connecting block 23. The slider 22 includes a guide rail and a paired slider. The moving cylinder 21 drives the connecting plate 300 to move horizontally, thereby allowing the connecting plate 300 to move and adjust the clamping component 30.

[0049] Optionally, a buffer 400 is provided on the support plate 100, with one end of the buffer 400 extending toward the slide rail 57.

[0050] Reference Figures 4-6 The side of the connecting plate 300 is connected to the clamping assembly 30 via the fixed seat 500. The clamping assembly 30 includes a test plate 31 and a test rack 32. The test rack 32 is provided with a plurality of upper clamping jaws 33 and lower clamping jaws 34. The upper clamping jaws 33 and lower clamping jaws 34 are symmetrically hinged to the fixed seat 500 via upper connecting brackets 35 and lower connecting brackets 36, respectively. The test plate 31 is installed on the fixed seat 500 and is positioned between the upper clamping jaws 33 and lower clamping jaws 34. The fixed seat 500 is connected to an opening clamping shaft 38 for driving the upper connecting brackets 35 and lower connecting brackets 36 to open or close relative to each other. One end of the opening clamping shaft 38 passes through the fixed seat 500 and is paired with the clamping drive member 40.

[0051] Optionally, two sets of clamping components 30 are provided, and the two sets of clamping components 30 are spaced vertically and connected to the connecting plate 300. The top plate 200 can be raised and lowered by the lifting drive 50, so that the two sets of clamping components 30 can be raised and lowered alternately by the top plate 200.

[0052] Specifically, the end of the clamping shaft 38 extends through the fixed base 500 toward the clamping drive 40 and forms a control end for mating the clamping drive 40.

[0053] The upper jaw 33 and the lower jaw 34 are hinged to the fixed base 500 via the upper connecting bracket 35 and the lower connecting bracket 36, so that the upper jaw 33 and the lower jaw 34 can open or close to each other. The upper jaw 33 and the lower jaw 34 open and close to the upper and lower surfaces of the test board 31, respectively, so that they can be used to clamp or release the pins of the capacitor 700.

[0054] Reference Figure 5 and Figure 6 Both the upper connecting bracket 35 and the lower connecting bracket 36 are connected to rollers 37 for controlling opening and closing. The outer surface of the clamping shaft 38 is provided with a clamping part 381 and an opening part 382 that are paired with the rollers 37.

[0055] In the clamping state, the clamping drive 40 drives the opening clamping shaft 38 to rotate, so that the clamping part 381 of the opening clamping shaft 38 contacts the outer surface of the roller 37. Through the squeezing of the roller 37 by the clamping part 381, the upper / lower connecting bracket 36 can drive the upper / lower gripper 34 to close towards the test board 31 under the hinge of the hinge shaft, so as to clamp the pin of the capacitor 700.

[0056] In the released state, the clamping drive 40 drives the opening clamping shaft 38 to rotate, causing the clamping part 381 of the opening clamping shaft 38 to release the pressure on the roller 37. The opening part 382 is provided with a groove to avoid the pressure on the roller 37. At this time, the upper / lower connecting bracket 36 is reset under the action of the hinge shaft, which can drive the upper / lower gripper 34 to release the clamping on the pin of capacitor 700.

[0057] Reference Figure 7 The clamping drive component 40 includes a bearing seat 41, a rack 42, a gear 43, a control component 44, and a clamping driver 45. The bearing seat 41 is mounted on the support plate 100 via a movable component 46, and the bearing seat 41 can slide along the movable component 46. One side of the bearing seat 41 is clamped and paired with the connecting plate 300 via a locking block. The gear 43 is rotatably mounted on the bearing seat 41 via a bearing. The control component 44 is paired and connected with the gear 43. One end of the control component 44 extends towards the end of the opening clamping shaft 38, and the control component 44 has an insertion groove 47 for pairing with the opening clamping shaft 38. The rack 42 is mounted on the bearing seat 41 and meshes with the gear 43. The clamping driver 45 is mounted on the bearing seat 41 and can drive the rack 42 to drive the gear 43 to rotate.

[0058] Specifically, the insertion slot 47 is configured to conduct. The lifting drive 50 drives the clamping assembly 30 to move up and down, causing a set of clamping assemblies 30 to move toward the clamping drive 40. The control end of the opening shaft 38 is paired with the insertion slot 47, thereby causing the control component 44 to drive the opening shaft 38 to rotate, so that it can control the clamping and releasing of the upper / lower jaws 34.

[0059] Specifically, both the lifting actuator 51 and the clamping actuator 45 are equipped with telescopic cylinders.

[0060] Optionally, in one embodiment, a charging conversion board is connected to the top of the top plate 200. The charging conversion board is electrically connected to the upper jaw 33 and the lower jaw 34 via electrical components. Through the electrical connection between the charging conversion board and the upper jaw 33 and the lower jaw 34, the upper jaw 33 and the lower jaw 34 can clamp the pins of the capacitor 700 for charging testing.

[0061] Optionally, in other embodiments, the upper / lower grippers 34 can be used to perform capacitance testing, ESR (equivalent series resistance) testing, open / short circuit testing, or charging testing on the capacitor 700, and different test racks 32 can be replaced according to specific usage requirements.

[0062] For example, refer to Figure 8 and Figure 9 The first set of clamping components 30 is flush with the conveyor line 600. When the first set of clamping components 30 clamps multiple capacitors 700 and removes them from the material clamp of the conveyor line 600, several empty material positions are formed on the conveyor line 600. When the charging test is performed by the charging conversion board, since the charging test requires a certain amount of time, the top plate 200 is driven to descend by the lifting drive component 50, so that the second set of clamping components 30 is flush with the conveyor line 600, and the second set of clamping components 30 is paired with the clamping drive component 40. The capacitors 700 clamped by the second set of clamping components 30 are placed in the empty material positions formed after the first set of clamping components 30 removes the capacitors 700 from the conveyor line 600. The conveyor line 600 continues to rotate to transport the tested capacitors 700 to the next process.

[0063] At this time, when the tested capacitor 700 exits the test auxiliary mechanism, the capacitor 700 to be tested on the conveyor line 600 enters the test auxiliary mechanism. The second set of clamping components 30 clamps and removes the capacitor 700 to be tested. At the same time, the top plate 200 is driven to rise and reset by the lifting drive component 50. The first set of clamping components 30 is flush with the conveyor line 600, and the tested capacitor 700 is placed in the empty material position of the conveyor line 600. That is, the clamping drive component 40 controls the two sets of clamping components 30 to form a clamping and material removal, and a releasing and material release. The above actions are repeated, which can further improve the testing efficiency and reduce the downtime waiting time of the conveyor line 600 during the testing process.

[0064] By setting up two sets of clamping components 30, the clamping and testing of capacitor 700 can be performed alternately, effectively reducing the downtime of the conveyor line 600, thereby shortening the overall testing cycle, enhancing the continuity and automation of testing, and improving testing efficiency.

[0065] The specific action process in this embodiment is as follows:

[0066] Reference Figures 1-9 An auxiliary mechanism for capacitor testing is set on the side of the capacitor 700 conveyor line 600, and the capacitor 700 is conveyed into the testing auxiliary mechanism through the conveyor line 600.

[0067] The clamping assembly 30 includes a first group and a second group. The first group of clamping assemblies 30 is flush with the conveyor line 600 and is paired with the clamping drive 40. The conveyor line 600 stops conveying. At the same time, the upper / lower grippers 34 of the first group of clamping assemblies 30 are in an open state. Specifically, the telescopic shaft of the lifting drive 51 extends and approaches the conveyor line 600, and the connecting rod 53 is located at the top of the inclined groove 54, so that the top plate 200 drives the second group of clamping assemblies 30 to a lifting state.

[0068] The connecting plate 300 is driven by the moving cylinder 21 to move the clamping assembly 30 closer to the conveyor line 600, so that the clamping driver 45 extends and drives the control component 44 to rotate through the gear 43. The control component 44 can drive the opening clamping shaft 38 to rotate. The clamping part 381 of the opening clamping shaft 38 can squeeze the roller 37, so that the upper / lower connecting bracket 36 is clamped and closed along the hinge axis. The upper / lower clamping jaws 34 and the test plate 31 clamp the positive and negative terminals of the capacitor 700 and remove it from the material clamp of the conveyor line 600, so that an empty material position is formed on the conveyor line 600.

[0069] By retracting the telescopic shaft of the lifting driver 51, the inclined slide block 52 moves away from the conveyor line 600 along the slide rail 57, and the connecting rod 53 is located at the bottom of the inclined groove 54. At this time, the second set of clamping components 30 is flush with the conveyor line 600 and is paired with the clamping drive component 40. The upper / lower jaws 34 of the second set of clamping components 30 are in a clamping state. The clamped capacitor 700 is placed in the empty material position of the conveyor line 600 through the second set of clamping components 30. At this time, the conveyor line 600 starts and continues to convey, thereby repeating the actions of clamping and picking up materials, lifting and switching and discharging materials, and waiting for picking up materials, further reducing the downtime of the conveyor line 600.

[0070] In summary, the two sets of clamping components 30 alternately switch to complete the clamping, picking up, and unloading of capacitor 700, reducing downtime during the clamping test and making the test process more efficient and smooth, while improving the overall flexibility and efficiency of the test process.

[0071] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Although the present utility model has been disclosed above with reference to a preferred embodiment, it is not intended to limit the present utility model. Any person skilled in the art can make some changes or modifications to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present utility model. Any simple modifications, equivalent changes, and modifications made to the above embodiments based on the present utility model without departing from the scope of the present utility model shall fall within the scope of the present utility model.

Claims

1. Auxiliary mechanism for capacitance testing, comprising a support plate, characterized in that: The support plate is connected with a top plate through a jacking assembly, the top plate is connected with a connecting plate through a moving assembly, the side of the connecting plate is connected with two or more clamping assemblies which can be opened and clamped, the clamping assemblies are used for clamping capacitor pins, one end of the connecting plate is provided with a clamping driving element used for driving the clamping assemblies to open and close, the support plate is provided with a jacking driving element used for driving the jacking assembly to drive the top plate to move up and down, the top plate can drive the two or more clamping assemblies to move up and down alternately, so that one set of clamping assemblies is matched with the clamping driving element, and the clamping driving element can drive one set of clamping assemblies to open and close.

2. The auxiliary mechanism for capacitance testing according to claim 1, wherein: The jacking assembly comprises a plurality of guide columns and guide shaft sleeves, the guide shaft sleeves are mounted on the support plate, and the guide columns are matched and mounted with the guide shaft sleeves, so that the guide columns can move up and down along the axial direction of the guide shaft sleeves, and the top plate is mounted at the top end of the guide column.

3. The auxiliary mechanism for capacitance testing according to claim 2, wherein: The jacking driving element comprises a jacking driver, an inclined jacking block and a connecting rod, the inclined jacking block is mounted on the support plate through a sliding rail, and an inclined groove is formed in the inclined jacking block in an inclined mode, the connecting rod is connected with the top plate through a connecting seat, the end of the connecting rod is matched with the inclined groove and can slide along the inclined groove, the jacking driver is mounted on a support frame and connected with the inclined jacking block through a connecting frame, and the jacking driver can drive the inclined jacking block to move along the sliding rail.

4. The auxiliary mechanism for capacitance testing according to claim 1, wherein: The moving assembly comprises a moving cylinder and a sliding piece, and the moving cylinder and the sliding piece are both mounted on the top plate, the extension end of the moving cylinder is connected with the connecting plate, and the connecting plate is matched and connected with the sliding piece through a connecting block.

5. The auxiliary mechanism for capacitance testing according to claim 3, wherein: A buffer is arranged on the support plate, and one end of the buffer extends to the sliding rail.

6. The auxiliary mechanism for capacitance testing according to any one of claims 1-5, wherein: The side of the connecting plate is connected with the clamping assembly through a fixing seat, the clamping assembly comprises a test plate and a test rack, a plurality of upper clamping jaws and lower clamping jaws are arranged on the test rack, the upper clamping jaws and the lower clamping jaws are symmetrically hinged to the fixing seat through upper connecting supports and lower connecting supports respectively, the test plate is mounted on the fixing seat and arranged between the upper clamping jaws and the lower clamping jaws, an opening clamping shaft for driving the upper connecting supports and the lower connecting supports to open or close each other is connected to the fixing seat, and one end of the opening clamping shaft penetrates through the fixing seat and is matched with the clamping driving element.

7. The auxiliary mechanism for capacitance testing according to claim 6, wherein: Rollers for controlling opening and closing are connected to the upper connecting supports and the lower connecting supports, and a clamping portion and an opening portion matched with the rollers are arranged on the outer surface of the opening clamping shaft.

8. The auxiliary mechanism for capacitance testing according to claim 6 or 7, characterized in that: The clamping driving element comprises a bearing seat, a rack, a gear, a control element and a clamping driver, the bearing seat is mounted on the support plate through a moving element and can slide along the moving element, one side of the bearing seat is clamped and matched with the connecting plate, the gear is rotatably mounted on the bearing seat through a bearing, the control element is matched and connected with the gear, one end of the control element extends to the end of the opening clamping shaft, an insertion groove matched with the opening clamping shaft is formed in the control element, the rack is mounted on the bearing seat and engaged with the gear, and the clamping driver is mounted on the bearing seat and can drive the rack to drive the gear to rotate.

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