A high current test wire clamp module

Abstract

This utility model provides a high-current test wire clamping module, belonging to the technical field of wire clamping modules. The high-current test wire clamping module includes a fixed plate, a floating plate, a guide shaft, a lifting cylinder, multiple gripper cylinders, multiple grippers, multiple positioning pins, and multiple connecting rods. The fixed plate serves as a base plate for connecting the gripper cylinders. The floating plate is connected to the fixed plate via the guide shaft. The lifting cylinder is mounted on the fixed plate via the connecting rods and drives the floating plate. The gripper cylinders are floatingly connected to the fixed plate via the guide shaft. The output end of each gripper cylinder is connected to a gripper, which contacts the product and provides power. The positioning pins are fixed to the floating plate, and each gripper cylinder is configured with multiple positioning pins. These positioning pins are used to switch between rigid and flexible states of the gripper cylinders under the drive of the lifting cylinder, solving the problems of insufficient clamping force and difficulty in clamping deformed terminals in traditional wire clamping modules.

Description

Technical Field

[0001] This utility model belongs to the technical field of wire clamping modules, and more specifically, it relates to a high-current testing wire clamping module. Background Technology

[0002] In automotive auxiliary motor torque testing, the high-current test clamp module is a key component ensuring successful testing. With the rapid development of the automotive industry, the power of automotive auxiliary motors is constantly increasing. During testing, the current typically reaches over 100A, placing extremely high demands on the high-current test clamp module. The high-current test clamp module is mainly used to connect the testing equipment to the automotive auxiliary motor, achieving stable current transmission to accurately test performance parameters such as motor torque. Its performance directly affects the accuracy and reliability of the test results, and consequently, the research, development, and production quality of automotive auxiliary motors.

[0003] Traditional high-current test clamping modules have several drawbacks in practical applications. Firstly, in terms of clamping method, traditional modules suffer from insufficient clamping force. Because automotive auxiliary motor terminals generate significant electrodynamic forces when high currents pass through them, and the terminals themselves are prone to deformation, the clamping module needs to clamp them with considerable force. However, traditional clamping modules often use a single cylinder to drive multiple jaws. This driving method struggles to provide a sufficiently large and uniform clamping force, leading to loosening of the wiring. Once the wiring becomes loose, poor contact can occur when high currents pass through, causing arcing, which can damage the test equipment and motor terminals, and potentially pose safety hazards.

[0004] Secondly, traditional wire clamping modules cannot effectively solve the problem of poor clamping caused by terminal deformation. Terminals may deform during production, transportation, or use, and the clamps of traditional wire clamping modules lack adaptability to terminal deformation. When encountering deformed terminals, the clamps cannot fit tightly against the terminal surface, greatly reducing the clamping effect and failing to guarantee stable current transmission, thus affecting the accuracy of test results.

[0005] Furthermore, the clamps are limited by space constraints. Within the confined space of automotive auxiliary motor testing equipment, traditional clamping modules have always faced the problem of not being able to increase the size or thickness of the clamps. The small size of the clamps results in thin electrodes, which are prone to overheating under high current, reducing the clamp's lifespan and electrical stability. Simultaneously, traditional clamps often use a single thread for fixing, which has low strength. Under the electrodynamic force of high current, the clamps are prone to loosening, further affecting the reliability of the clamping module. Utility Model Content

[0006] In view of this, the present invention provides a high-current test clamping module to solve the problems of insufficient clamping force and difficulty in clamping deformed terminals in the high-current test of automotive auxiliary motors.

[0007] This utility model is implemented as follows:

[0008] This utility model provides a high-current test clamping module, comprising a fixed plate, a floating plate, a guide shaft, a lifting cylinder, multiple gripper cylinders, multiple grippers, multiple positioning pins, and multiple connecting rods. The fixed plate serves as a base plate for connecting the gripper cylinders. The floating plate is connected to the fixed plate via the guide shaft. The lifting cylinder is mounted on the fixed plate via the connecting rods and drives the floating plate. The gripper cylinders are floatingly connected to the fixed plate via the guide shaft. The output end of each gripper cylinder is connected to the gripper, which contacts the product and provides power. The positioning pins are fixed on the floating plate, and each gripper cylinder is configured with multiple positioning pins. The positioning pins are used to switch between rigid and flexible states of the gripper cylinder under the drive of the lifting cylinder.

[0009] The guide shaft is used to ensure the positional accuracy of the grippers when the floating plate moves relative to the fixed plate.

[0010] The composition and connection relationships of the core components of the wire clamping device were clarified, and a basic structure for switching between rigidity and flexibility was constructed. The fixed plate provides stable support, the floating plate and the guide shaft cooperate to ensure the positional accuracy of the clamps, the lifting cylinder drives the floating plate to realize the state transition, and the floating connection between the clamp cylinder and the guide shaft and the configuration of the positioning pins provide a reliable way to clamp the terminals, effectively solving the problems of insufficient clamping force and difficulty in clamping deformed terminals in existing wire clamping methods.

[0011] Based on the above technical solution, the high-current test wire clamp module of this utility model can be further improved as follows:

[0012] The floating plate is positioned above the fixed plate, and the guide shaft is vertically positioned with its upper and lower ends connected to the fixed plate and the floating plate, respectively.

[0013] The beneficial effects of adopting the above-mentioned improvement scheme are as follows: limiting the positional relationship between the floating plate and the fixed plate and the setting method of the guide shaft makes the movement of the floating plate in the vertical direction more stable and precise, ensuring that the gripper can always accurately dock with the terminal during the transition between rigidity and flexibility, thereby improving the reliability of the device and the accuracy of the test.

[0014] Furthermore, the cylinder body of the lifting cylinder is fixed to the floating plate, and the piston rod of the lifting cylinder is connected to the fixed plate to drive the floating plate to rise and fall.

[0015] Furthermore, one end of the guide shaft is fixed to the fixed plate, and the other end is connected to the cylinder body of the gripper cylinder through a hinge structure, so that the gripper cylinder can rotate around the hinge point in the rotational direction.

[0016] The beneficial effects of adopting the above-mentioned improved scheme are as follows: the hinge structure between the guide shaft and the gripper cylinder body realizes the degree of freedom restriction that the gripper cylinder can only rotate in the rotation direction. The rotation angle range of the gripper cylinder around the hinge point in the rotation direction is ±15°, which restricts the swaying in other directions and improves the stability and reliability of clamping. This angle range can ensure that the gripper cylinder can accurately align the terminals at different positions through adaptive rotation, and can also effectively avoid structural interference and stability reduction caused by excessive angle.

[0017] Furthermore, the cylinder body of the gripper cylinder is connected to the gripper via a transmission mechanism, which transmits the driving force of the gripper cylinder to the gripper to achieve clamping and releasing of the gripper.

[0018] The transmission mechanism converts the linear motion of the gripper cylinder into the opening and closing motion of the gripper. This linkage transmission method has a simple structure and reliable transmission, and can effectively amplify the clamping force, enabling the gripper to clamp the terminal with a larger force, thus solving the problem of the terminal requiring a large clamping force.

[0019] The gripper has a thickened structure, and its connection with the gripper cylinder is fixed with double threads.

[0020] A transmission mechanism is a mechanical structure that converts the linear motion of a gripper cylinder into the opening and closing action of the gripper. This transmission mechanism adopts a linkage mechanism design, specifically including:

[0021] Transmission block: It is fixedly connected to the end of the piston rod of the gripper cylinder and moves linearly with the piston rod;

[0022] First connecting rod: One end is connected to the transmission block via a hinge shaft, and it can rotate relative to the transmission block;

[0023] Second link: One end is hinged to the other end of the first link, and the other end is fixedly connected to the gripper body;

[0024] Fixed fulcrum: The middle part of the second connecting rod is connected to the cylinder body of the gripper cylinder through a fixed shaft, forming a lever fulcrum.

[0025] Furthermore, the positioning pin is columnar and is vertically fixed to the side surface of the floating plate facing the gripper cylinder, and a plurality of the positioning pins are symmetrically arranged relative to the gripper cylinder.

[0026] The beneficial effects of adopting the above-mentioned improvement scheme are as follows: the columnar structure and symmetrical arrangement of the positioning pins ensure the uniformity and stability of the clamping and releasing actions of the gripper cylinder, ensuring the accuracy and stability of the next step of docking with the product, making the gripper cylinder more reliable when switching between rigid and flexible states, and improving the overall performance of the device.

[0027] After the gripper cylinder completes the clamping operation on the terminal, the equipment drives the floating plate to move the gripper cylinder towards the docking product. The positioning pins, which are vertically fixed to the floating plate and symmetrically distributed, are precisely inserted into the corresponding positioning holes of the docking product, providing precise position guidance for the gripper cylinder. Subsequently, the gripper cylinder changes from a rigid clamping state to a flexible fitting state, smoothly and accurately assembling the clamped terminal to the designated position of the docking product, completing the product assembly process.

[0028] Furthermore, the clamping device is installed on the lifting mechanism for lifting and docking with the product.

[0029] The beneficial effects of adopting the above-mentioned improved solution are as follows: the cooperation between the wire clamping device and the lifting mechanism realizes automatic lifting and docking with the product, improves the automation level and work efficiency of testing, reduces manual operation, and at the same time ensures the accuracy and stability of docking.

[0030] Furthermore, in the initial state, the gripper cylinder is in the open state, the lifting cylinder is in the lifting state, and the positioning pin is pressed against the gripper cylinder, so that the gripper cylinder is in a rigid state.

[0031] The beneficial effects of adopting the above-mentioned improvement scheme are: clarifying the state of each component in the initial state, ensuring that the wire clamping device is in a suitable ready state when it starts working, facilitating the smooth entry of the sample terminal into the clamping space, and at the same time, the rigid state can provide a stable foundation for subsequent state transitions.

[0032] Furthermore, the gripper cylinder can only rotate in the rotational direction on the guide shaft, and the other degrees of freedom are restricted.

[0033] The beneficial effects of the above-mentioned improvement scheme are as follows: After the gripper cylinder is connected to the guide shaft, its movement in space is constrained, with only rotation around the axis of the guide shaft allowed. This means that the gripper cylinder's other degrees of freedom, such as movement along the length of the guide shaft, vertical movement perpendicular to the plane of the guide shaft, and horizontal movement in the horizontal plane, are also restricted. The purpose of this design is to limit unnecessary movement while ensuring that the gripper cylinder can perform specific actions, thereby improving the stability and reliability of the entire device and ensuring that the gripper can accurately clamp and release the sample terminals during operation.

[0034] Furthermore, the gripper cylinder adopts an independent cylinder drive mode, and the wire clamping device utilizes the external space of the product to expand, thereby increasing the working space of the gripper.

[0035] The beneficial effects of adopting the above-mentioned improvement scheme are as follows: the independent cylinder drive mode allows each gripper cylinder to be controlled individually, enabling precise adjustment of the clamping force according to the needs of different samples, thus improving the flexibility and adaptability of the device; by utilizing the external space of the product to expand the movement space of the grippers, the problem of grippers being unable to be enlarged or thickened due to space limitations is solved, the thickness of the gripper electrodes is increased, and the strength, power carrying capacity and firmness of the grippers are improved, effectively solving the problems of small space, large current carrying capacity and unstable power carrying capacity of the power-carrying grippers in the testing industry.

[0036] Compared with the prior art, the beneficial effects of the high-current test clamp module provided by this utility model are:

[0037] Significantly Improved Clamping Performance: This invention effectively solves the problem of insufficient clamping force in traditional wire clamping modules through a series of innovative designs. It adopts a one-claw-one-cylinder-drive mode, where each claw cylinder can independently provide clamping force. Compared to the traditional method of a single cylinder driving multiple claws, the clamping force can be precisely adjusted according to the actual situation of the terminal, ensuring that the terminal is firmly clamped. Simultaneously, the opening and tightening actions of the floating cylinder realize the conversion between the flexibility and rigidity of the claw. When the claw is in a flexible state, it can effectively absorb the swing of the sample terminal. Even if the terminal has a certain degree of deformation or positional deviation, the claw can still closely fit the terminal surface, avoiding loose wiring and arcing. This design greatly improves the clamping stability and reliability of the wire clamping device, ensuring the smooth conduct of high-current testing.

[0038] Enhanced device adaptability: Addressing the issue of positional deviations between different samples, this invention exhibits excellent compatibility. The gripper cylinder's design, restricting only rotational direction on the guide shaft and limiting other degrees of freedom, allows the gripper to flexibly adjust its angle within a certain range to adapt to changes in terminal position. Simultaneously, the gripper's self-adaptive capability in its flexible state further enhances the device's adaptability to different samples. Whether it's a standard-sized automotive auxiliary motor terminal or a terminal with some deformation or positional deviation, this invention achieves accurate docking and reliable clamping, effectively improving testing efficiency and reducing test failures due to sample differences.

[0039] Improved gripper performance: This invention features an optimized gripper design, utilizing the external space above the product to expand the gripper's operating range and increase the thickness of the gripper electrodes. The thickened gripper electrodes can better withstand high current flow, reducing heat generation and improving the gripper's lifespan and electrical stability. Furthermore, the gripper's fixing method has been changed from a single thread to a double thread, significantly enhancing the gripper's connection strength and making it less prone to loosening under the electrodynamic force of high current, further strengthening the reliability of the wire clamping device.

[0040] Achieving efficient and stable testing: Through the above improvements, this invention effectively solves the problems of small space in the power-on gripper, large current, and unstable power supply in the testing industry. During high-current testing, it ensures stable current transmission, avoiding test interruptions or inaccurate data caused by loose wiring or overheating of the gripper. Simultaneously, it boasts a high degree of automation, achieving automatic lifting and docking in conjunction with a lifting mechanism, reducing manual operation, improving testing efficiency and accuracy, and providing reliable testing support for the research and development and production of automotive auxiliary motors. Attached Figure Description

[0041] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments of this utility model will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0042] Figure 1 This is an example diagram of a high-current test wire clamp module;

[0043] Figure 2 This is a side view of a high-current test clamp module;

[0044] The attached diagram lists the components represented by each number as follows:

[0045] 1. Fixed plate; 2. Floating plate; 3. Guide shaft; 4. Lifting cylinder; 5. Gripper cylinder; 6. Gripper; 7. Positioning pin; 8. Connecting rod. Detailed Implementation

[0046] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings.

[0047] like Figure 1-2The diagram shows a first embodiment of a high-current testing clamping module provided by this utility model. In this embodiment, it includes a fixed plate 1, a floating plate 2, a guide shaft 3, a lifting cylinder 4, multiple gripper cylinders 5, multiple grippers 6, multiple positioning pins 7, and multiple connecting rods 8. The fixed plate 1 serves as a base plate and is used to connect the gripper cylinders 5. The floating plate 2 is connected to the fixed plate 1 via the guide shaft 3. The lifting cylinder 4 is mounted on the fixed plate 1 via the connecting rods 8 and is used to drive the floating plate 2. The gripper cylinders 5 are floatingly connected to the fixed plate 1 via the guide shaft 3. The output end of the gripper cylinder 5 is connected to the gripper 6, which is used to contact the product and provide power. The positioning pins 7 are fixed on the floating plate 2, and each gripper cylinder 5 is configured with multiple positioning pins 7. The positioning pins 7 are used to switch between the rigid and flexible states of the gripper cylinder 5 under the drive of the lifting cylinder 4.

[0048] First, install the clamping device on the lifting mechanism; start the equipment. In the initial state, the clamping cylinder opens and the lifting cylinder lifts, making the clamping jaws rigid; after the sample terminal enters the clamping space, control the lifting cylinder to fall back and switch the clamping cylinder to flexible state; finally, control the clamping cylinder to clamp the terminal and perform the test.

[0049] Once the sample terminal enters the gripper space, the lifting cylinder retracts, the positioning pin disengages from the gripper cylinder, and the gripper cylinder enters a flexible state. When the gripper cylinder in this flexible state clamps the terminal, it absorbs any swinging motion of the sample terminal.

[0050] In the above technical solution, the floating plate 2 is set above the fixed plate 1, and the guide shaft 3 is set vertically, with its upper and lower ends connected to the fixed plate 1 and the floating plate 2 respectively.

[0051] Furthermore, in the above technical solution, the cylinder body of the lifting cylinder 4 is fixed on the floating plate 2, and the piston rod of the lifting cylinder 4 is connected to the fixed plate 1 to drive the floating plate 2 to rise and fall.

[0052] Furthermore, in the above technical solution, one end of the guide shaft 3 is fixed on the fixed plate 1, and the other end is connected to the cylinder body of the gripper cylinder 5 through a hinge structure, so that the gripper cylinder 5 can rotate around the hinge point in the rotation direction.

[0053] Furthermore, in the above technical solution, the cylinder body of the gripper cylinder 5 is connected to the gripper 6 through a transmission mechanism. The transmission mechanism is used to transmit the driving force of the gripper cylinder 5 to the gripper 6 to realize the clamping and releasing of the gripper.

[0054] Furthermore, in the above technical solution, the positioning pin 7 is columnar and is vertically fixed on the side surface of the floating plate 2 facing the gripper cylinder 5, and multiple positioning pins 7 are symmetrically arranged relative to the gripper cylinder 5.

[0055] Furthermore, in the above technical solution, the clamping device is installed on the lifting mechanism for lifting and docking with the product.

[0056] Furthermore, in the above technical solution, in the initial state, the gripper cylinder 5 is in the open state, the lifting cylinder 4 is in the lifting state, and the positioning pin 7 is pressed against the gripper cylinder 5, so that the gripper cylinder 5 is in a rigid state.

[0057] Furthermore, in the above technical solution, the gripper cylinder can only rotate in the direction of rotation on the guide shaft 3, and the other degrees of freedom are restricted.

[0058] The guide shaft 3 is fixed on the fixed plate 1, and the gripper cylinder 5 and the guide shaft 3 are connected by a special method. For example, a cylindrical journal can be set on the guide shaft 3 of the connecting rod 8, and a circular connecting hole that matches it can be set at the corresponding position of the gripper cylinder 5. The inner diameter of the connecting hole is slightly larger than the outer diameter of the journal, so that the gripper cylinder 5 can rotate around the journal.

[0059] To restrict the degrees of freedom of the gripper cylinder 5 in other directions, a limiting structure can be set between the guide shaft 3 and the gripper cylinder 5. For example, an annular groove can be set on the journal, and a corresponding protrusion can be set on the inner wall of the connecting hole of the gripper cylinder 5. The protrusion is embedded in the annular groove, thus preventing the gripper cylinder 5 from moving along the length direction of the guide shaft 3. At the same time, by reasonably designing the clearance and fit between the gripper cylinder 5 and other components (such as the fixed plate 1, floating plate 2, etc.), the movement of the gripper cylinder 5 in the direction perpendicular to the plane where the connecting rod is located is restricted, thereby achieving the effect of allowing the gripper cylinder to rotate only in the rotational direction on the connecting rod, while restricting the other degrees of freedom.

[0060] Furthermore, in the above technical solution, the gripper cylinder 5 adopts an independent cylinder drive mode, and the wire clamping device is expanded by utilizing the external space of the product, thereby increasing the working space of the gripper.

[0061] Independent cylinder drive mode is achieved through the following technical means:

[0062] Independent air supply system: Each gripper cylinder is equipped with a separate air supply hose. One end of the hose is connected to the air inlet of the cylinder, and the other end is connected to the air distribution block through a quick-connect fitting.

[0063] Independent control of control valves: Each gas supply branch is equipped with an independent solenoid valve. The solenoid valve adopts a three-position five-way center-sealed structure, which can realize bidirectional locking of the cylinder.

[0064] Control system integration: The control signals of all solenoid valves are connected to a programmable logic controller (PLC), and individual control of each gripper cylinder is achieved by writing independent control programs;

[0065] Independent pressure regulation: A miniature pressure regulating valve is installed on each gas supply branch, which can independently adjust the pressure according to the clamping force requirements of different grippers.

[0066] The expansion of the gripper's working space by utilizing external space is achieved through the following structural innovations:

[0067] Fixed plate extension design: The fixed plate extends upwards into the non-interference area of ​​the product to form a cantilever structure. The extended part adopts a hollow reinforcing rib design to reduce weight.

[0068] Synchronous expansion of floating plate: The floating plate extends synchronously with the extension of the fixed plate, and reinforcing ribs are set in the extension area;

[0069] External mounting of gripper cylinder: The gripper cylinder is mounted on the bottom surface of the extended cantilever of the fixed plate via an L-shaped bracket, so that the opening and closing action space of the gripper exceeds the original boundary of the product.

[0070] Extended guide shaft design: To accommodate the expansion of the fixed plate and floating plate, the length of the guide shaft is increased accordingly, and a dustproof corrugated pipe is fitted over the guide shaft;

[0071] Spatial layout optimization: Spatial interference analysis of grippers, cylinders and products is performed through CAD 3D modeling to ensure no motion interference within the extended space.

[0072] Specifically, the principle of this utility model is as follows:

[0073] Rigidity and Flexibility Conversion Principle: One of the core innovations of this invention lies in achieving the conversion between rigidity and flexibility in the gripper. This principle is based on the coordinated work of the lifting cylinder, floating plate, positioning pins, and gripper cylinder. The fixed plate serves as the base plate, providing the power foundation for other components and also acting as the connecting plate for the gripper cylinders. The floating plate is connected to the fixed plate via a guide shaft, which ensures that the gripper's positional accuracy remains unchanged during the transition between rigidity and flexibility. The lifting cylinder, mounted on the fixed plate, is the driving cylinder that enables the gripper to switch between rigidity and flexibility. The positioning pins are fixed to the floating plate, and each gripper cylinder is equipped with multiple positioning pins.

[0074] In the initial state, the lifting cylinder is in the lifting position, pressing the positioning pins and gripper cylinders together. Multiple positioning pins and a guide shaft firmly limit the freedom of the gripper cylinder, placing the gripper in a rigid state. This state facilitates accurate insertion and initial positioning of the sample terminal. Once the sample terminal enters the gripper space, the lifting cylinder retracts, disengaging the positioning pins from the gripper cylinder. At this point, the gripper cylinder is only connected by the guide shaft. Due to the floating connection between the guide shaft and the gripper cylinder, the gripper cylinder is in a flexible state. In this flexible state, the gripper can adaptively adjust according to the actual shape and position of the terminal, absorbing terminal sway, thereby achieving a tight fit and secure clamping.

[0075] Independent Cylinder Drive Principle: This system employs an independent drive mode for the gripper cylinders. Each gripper cylinder is equipped with an independent air supply pipe and control valve. Each gripper cylinder has its own independent air source, and the air intake and pressure can be individually adjusted via the control valve, thus achieving individual control of each gripper cylinder. This independent drive method allows each gripper to provide the appropriate clamping force according to actual needs, avoiding the uneven clamping force problem caused by the large number and distance between grippers when a single cylinder drives multiple grippers in traditional systems. Furthermore, independent control allows for flexible adjustment of the gripping force and action sequence based on the characteristics of different samples, improving the flexibility and adaptability of the device.

[0076] Working principle of the transmission mechanism: The cylinder body of the gripper cylinder is connected to the gripper via a transmission mechanism, which employs a linkage design. Specifically, the transmission mechanism includes a transmission block connected to the piston rod of the gripper cylinder, a first connecting rod hinged to the transmission block, and a second connecting rod hinged to the other end of the first connecting rod. The other end of the second connecting rod is fixedly connected to the gripper. When the piston rod of the gripper cylinder extends, it drives the transmission block to move. The linear motion of the transmission block is converted into the opening and closing motion of the gripper through the hinge of the first and second connecting rods. This linkage transmission method effectively amplifies the driving force of the gripper cylinder, enabling the gripper to clamp the terminal with greater force, while ensuring the stability and reliability of the gripper's operation.

Claims

1. A high-current test clamp module, characterized in that, The system includes a fixed plate, a floating plate, a guide shaft, a lifting cylinder, multiple gripper cylinders, multiple grippers, multiple positioning pins, and multiple connecting rods. The fixed plate serves as a base plate for connecting the gripper cylinders. The floating plate is connected to the fixed plate via the guide shaft. The lifting cylinders are mounted on the fixed plate via the connecting rods and are used to drive the floating plate. The gripper cylinders are floatingly connected to the fixed plate via the guide shaft. The output end of each gripper cylinder is connected to the gripper, which contacts the product and provides power. The positioning pins are fixed to the floating plate, and each gripper cylinder is equipped with multiple positioning pins. These positioning pins are used to switch between rigid and flexible states of the gripper cylinders under the drive of the lifting cylinder.

2. The high-current test clamp module according to claim 1, characterized in that, The floating plate is positioned above the fixed plate, and the guide shaft is vertically positioned with its upper and lower ends connected to the fixed plate and the floating plate, respectively.

3. The high-current test clamp module according to claim 2, characterized in that, The cylinder body of the lifting cylinder is fixed to the floating plate, and the piston rod of the lifting cylinder is connected to the fixed plate to drive the floating plate to rise and fall.

4. A high-current test clamp module according to claim 3, characterized in that, One end of the guide shaft is fixed to the fixed plate, and the other end is connected to the cylinder body of the gripper cylinder through a hinge structure, so that the gripper cylinder can rotate around the hinge point in the rotation direction.

5. A high-current test clamp module according to claim 4, characterized in that, The cylinder body of the gripper cylinder is connected to the gripper via a transmission mechanism. The transmission mechanism is used to transmit the driving force of the gripper cylinder to the gripper, thereby enabling the gripper to clamp and release.

6. A high-current test clamp module according to claim 5, characterized in that, The positioning pin is columnar and is vertically fixed to the side surface of the floating plate facing the gripper cylinder. Multiple positioning pins are symmetrically arranged relative to the gripper cylinder.

7. A high-current test clamp module according to claim 6, characterized in that, The clamping device is installed on the lifting mechanism and is used for lifting and docking with the product.

8. A high-current test clamp module according to claim 7, characterized in that, In the initial state, the gripper cylinder is in the open state, the lifting cylinder is in the lifting state, and the positioning pin is pressed against the gripper cylinder, so that the gripper cylinder is in a rigid state.

9. A high-current test clamp module according to claim 8, characterized in that, The gripper cylinder can only rotate in the rotational direction on the guide shaft; the other degrees of freedom are restricted.

10. A high-current test clamp module according to claim 9, characterized in that, The gripper cylinder adopts an independent cylinder drive mode, and the wire clamping device is extended by utilizing the external space of the product, thereby increasing the working space of the gripper.

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