Multifunctional clamp for battery assembly

By integrating sensor systems, adjustable clamping devices and automatic calibration devices in battery assembly fixtures, the problems of limited applicability and safety hazards in the prior art are solved, and precise assembly and safety improvement of batteries of different specifications are achieved. Improved production efficiency and assembly quality.

CN222289913UActive Publication Date: 2025-01-03XINXIANG FUDI NEW ENERGY TECH CO LTD
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Patent Information

Application Number
CN202420993600.1
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-05-08
Publication Date
2025-01-03
Estimated Expiration
2034-05-08

AI Technical Summary

Technical Problem

The existing battery-assembled multi-function fixtures have defects in their limited applicability, poor flexibility and safety hazards, making them difficult to adapt to battery assembly of different specifications and models, and the safety design is not perfect enough, which poses the risk of out-of-control fixtures and battery damage.

Method used

A multi-function fixture is designed, adopting a sensor system, an adjustable clamping device, a locking device, an optical detection system and an automatic calibration device. Real-time monitoring and automatic adjustment are achieved through a programmable controller to enhance the applicability and safety of the fixture.

Benefits of technology

Accurate clamping and assembly of batteries of different specifications and models is achieved, improving the flexibility and safety of the fixture, reducing operating risks, and improving production efficiency and assembly quality.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a multifunctional clamp for battery assembly, relates to the technical field of automation, and overcomes the defects of limited applicability, poor flexibility and potential safety hazards in the conventional multifunctional clamp for battery assembly. Various parameters in the battery assembling process are sensed in real time through the sensor system, the battery assembling device flexibly adapts to batteries of different shapes and sizes through the adjustable clamping device and the supporting structure, and the application range and the flexibility of the battery assembling device are enhanced; through the optical detection system and the automatic calibration device, the clamp can flexibly adjust the clamping force and the detection precision according to actual requirements, and different process requirements and product characteristics are met; the safety of the clamp is enhanced through the arrangement of the locking device and the arrangement of the scram button, in addition, the clamp has higher safety and controllability through the connection with the programmable controller, the sensor system and the scram button, and the adaptability and flexibility of the clamp are greatly improved.
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Description

Technical Field

[0001] The utility model relates to the field of automation technology, and more specifically to a multifunctional clamp for battery assembly. Background Art

[0002] With the popularity of electric vehicles and renewable energy, battery technology has become an important part of future energy storage and transmission. However, there are many challenges in the battery assembly process, which requires efficient and safe solutions. In this context, multifunctional fixtures for battery assembly have ushered in development opportunities.

[0003] With the advancement of science and technology and the continuous improvement of manufacturing technology, traditional battery assembly methods can no longer meet the growing demand. Traditional fixture designs can only assemble specific types of batteries and are difficult to adapt to batteries of different specifications and models. At the same time, they also have certain defects in safety and efficiency.

[0004] In recent years, with the rapid development of robotics, automation and intelligent manufacturing, the battery assembly industry has also been constantly introducing new technologies to improve production efficiency and quality. The introduction of automated assembly lines has made the battery assembly process more efficient, while the application of intelligent control systems has improved the intelligence level of the production line.

[0005] In addition, the application of 3D printing technology provides new possibilities for the customized design of fixtures, which greatly shortens the production cycle of fixtures and reduces costs to a certain extent. The application of these new technologies provides a more flexible and efficient solution for battery assembly.

[0006] Although the existing multifunctional fixtures for battery assembly have improved production efficiency and quality to a certain extent, there are still some shortcomings. First, since the fixture design is usually for specific models or specifications of batteries, there are certain limitations when dealing with different types of batteries. Secondly, the traditional fixture design lacks flexibility and cannot quickly adapt to the production needs of new batteries on the market. Finally, the safety design of some fixtures is not perfect, which is prone to safety problems such as fixture loss of control and battery damage, bringing potential risks to the production line. Utility Model Content

[0007] The purpose of the present invention is to design a multifunctional clamp for battery assembly that can solve the shortcomings of existing multifunctional clamps for battery assembly, such as limited applicability, poor flexibility and potential safety hazards.

[0008] In order to achieve the above technical effects, the utility model adopts the following technical solutions:

[0009] A multifunctional clamp for battery assembly, comprising: a clamp body, a sensor system is provided at the central position of the top of the clamp body; the sensor system is connected to a programmable controller through a wire; an adjustable clamping device is provided above the sensor system, and the adjustable clamping device is connected to the clamp body through a mechanical thread; the adjustable clamping device realizes an adjustable clamping force through a rotating shaft connected to the clamp body; a locking device is provided above the adjustable clamping device; the locking device is connected to the clamping device through a quick buckle; a supporting structure is provided below the clamp body; the supporting structure is distributed around the bottom of the clamp and is connected to the clamp body through a hydraulic device; an optical detection system is provided on the left side of the adjustable clamping device; the optical detection system is connected to the clamp body through a bracket; an emergency stop button is provided on the front of the clamp body; the emergency stop button is connected to the programmable controller through a wire; the programmable controller is installed on the inner side of the front of the clamp body; the programmable controller is connected to an automatic calibration device through a wire; the automatic calibration device is installed inside the clamping device.

[0010] As a further description of the above technical solution:

[0011] The sensor system integrates a pressure sensor, a temperature sensor and a displacement sensor; the pressure sensor is used to monitor the pressure applied by the clamp on the battery to ensure the stability and safety of the clamp when clamping the battery; the temperature sensor is used to monitor the temperature between the clamp and the battery assembly; the displacement sensor is used to accurately measure the relative position between the clamp and the battery assembly to achieve alignment and assembly operations.

[0012] As a further description of the above technical solution:

[0013] The adjustable clamping device includes a clamping arm, on which a clamping pad and a triangular clamp are provided for fixing the battery, and the clamping arm is connected to the mechanical structure of the adjustable clamping device via a rotating shaft; a spiral adjustment device is provided inside the clamping arm, and the spiral adjustment device controls the clamping force via a thread; a pressure sensor is provided on the triangular clamp for monitoring the clamping force state.

[0014] As a further description of the above technical solution:

[0015] The locking device includes a locking rod for clamping or releasing the battery assembly; the locking rod is connected to the locking device bracket through a bearing; the locking device bracket is located below the locking rod; the locking device bracket is fixed to the clamping device by welding, and the locking device bracket is connected to the operating rod through a quick buckle; the operating rod is located above the quick buckle and is used to manually operate the locking device; the operating rod is connected to the quick buckle through a pin and a bolt; the quick buckle is connected to the locking rod through a buckle and a spring.

[0016] As a further description of the above technical solution:

[0017] The optical detection system includes a camera, which is connected to a control circuit board via a cable; the camera is surrounded by an annular light source on the outer ring; the annular light source is connected to the control circuit board via a cable; a lens system is provided in front of the camera; the lens system is composed of a lens and an aperture; the control circuit board is connected to a processor and a storage device via a cable for processing and storing captured image data; a connection interface is provided on the camera for communication and data exchange between other components of the fixture and the optical detection system.

[0018] As a further description of the above technical solution:

[0019] The automatic calibration device is composed of a motor and an encoder; the output shaft of the motor is connected to the clamping device through a mechanical structure to drive the clamping device for adjustment; the encoder is installed on the motor shaft to monitor the rotation position and speed of the motor.

[0020] As a further description of the above technical solution:

[0021] The programmable controller includes a logic control circuit, a motor drive module, an encoder interface module, a sensor interface module, a human-machine interface module, a communication interface module and a power supply module; the logic control circuit integrates a processor, a memory and an input / output interface; the motor drive module is used to control the motor in the fixture and adjust the clamping force and clamping position of the fixture; the encoder interface module is used to connect the encoder to monitor the position and speed of the motor in real time; the sensor interface module is used to connect the sensor in the fixture; the human-machine interface module is used to interact with the operator; the communication interface module is used to communicate with the host computer; the communication interface module supports serial port communication with the fixture controller as the main node; the power supply module is used to provide power supply for the fixture system.

[0022] In summary, due to the adoption of the above technical solution, the beneficial effect of the utility model is that the utility model enables the fixture to sense various parameters in the battery assembly process in real time through the establishment of the sensor system, thereby realizing accurate clamping and assembly of batteries of different specifications and models. In addition, the design of the adjustable clamping device and the support structure enables the fixture to flexibly adapt to batteries of different shapes and sizes, enhancing its scope of application and flexibility. Secondly, the rotating shaft and mechanical threaded connection mechanism of the adjustable clamping device, as well as the setting of the optical detection system, enable the fixture to flexibly adjust the clamping force and detection accuracy according to actual needs, and adapt to different process requirements and product characteristics. At the same time, the introduction of the automatic calibration device further enhances the flexibility and intelligence level of the fixture, enabling it to calibrate and adjust autonomously according to real-time data, reduce manual intervention, and improve production efficiency. The setting of the locking device and the establishment of the emergency stop button enhance the safety of the fixture, and can stop the fixture operation in time in an emergency, avoid accidents, and ensure the safety of operators and equipment. In addition, through the connection with the programmable controller, the sensor system and the emergency stop button are closely integrated with the control system, so that the fixture has higher safety and controllability, and reduces the operation risk. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the prior art descriptions are briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative labor, among which:

[0024] Figure 1 This is the overall architecture diagram of the utility model;

[0025] Figure 2 This is a schematic diagram of the structure of the sensor system of the utility model;

[0026] Figure 3 This is a schematic diagram of the structure of the optical detection system of the utility model;

[0027] Figure 4 This is a schematic diagram of the framework of the programmable controller of the utility model;

[0028] Numbers in the figure: 1. Fixture body; 2. Sensor system; 3. Programmable controller; 4. Adjustable clamping device; 5. Locking device; 6. Support structure; 7. Hydraulic device; 8. Optical detection system; 9. Emergency stop button; 10. Automatic calibration device; 201. Pressure sensor; 202. Temperature sensor; 203. Displacement sensor; 301. Logic control circuit; 302. Motor drive module; 303. Encoder interface module; 304. Sensor interface module; 305. Human-machine interface module; 306. Communication interface module; 307. Power supply module; 801. Camera; 802. Ring light source; 803. Lens system. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this utility model.

[0030] like Figure 1-Figure 4 As shown, a multifunctional clamp for battery assembly comprises: a clamp body 1, a sensor system 2 is provided at the top center of the clamp body 1; the sensor system 2 is connected to a programmable controller 3 through a wire; an adjustable clamping device 4 is provided above the sensor system 2, and the adjustable clamping device 4 is connected to the clamp body 1 through a mechanical thread; the adjustable clamping device 4 realizes an adjustable clamping force through a rotating shaft connected to the clamp body 1; a locking device 5 is provided above the adjustable clamping device 4; the locking device 5 is connected to the clamping device through a quick buckle; the clamp body A supporting structure 6 is provided under the body 1; the supporting structure 6 is distributed around the bottom of the clamp and is connected to the clamp body 1 through a hydraulic device 7; an optical detection system 8 is provided on the left side of the adjustable clamping device 4; the optical detection system 8 is connected to the clamp body 1 through a bracket; an emergency stop button 9 is provided on the front of the clamp body 1; the emergency stop button 9 is connected to the programmable controller 3 through a wire; the programmable controller 3 is installed on the inner side of the front of the clamp body 1; the programmable controller 3 is connected to the automatic calibration device 10 through a wire; the automatic calibration device 10 is installed inside the clamping device.

[0031] In the above embodiment, the sensor system 2 integrates a pressure sensor 201, a temperature sensor 202 and a displacement sensor 203; the pressure sensor 201 is used to monitor the pressure applied by the clamp on the battery to ensure the stability and safety of the clamp when clamping the battery; the temperature sensor 202 is used to monitor the temperature between the clamp and the battery assembly; the displacement sensor 203 is used to accurately measure the relative position between the clamp and the battery assembly to achieve alignment and assembly operations.

[0032] In a specific embodiment, the pressure sensor 201 senses the pressure change between the clamp and the battery to monitor the clamping force of the clamp on the battery in real time. When the battery is clamped in the clamp, the pressure sensor senses the pressure applied to the battery and converts it into an electrical signal output. In this way, the operator can adjust the clamping force by monitoring the signal of the pressure sensor to ensure that the battery is not subjected to excessive or insufficient pressure during the assembly process, thereby ensuring the assembly quality. The temperature sensor 202 is mainly used to monitor the temperature change between the clamp and the battery to prevent safety problems or battery damage caused by excessively high or low temperatures. During the battery assembly process, since the clamp may be affected by mechanical movement or the operation of electronic components, certain friction or heat may be generated, and the temperature sensor can sense these temperature changes in time. When the temperature sensor detects that the temperature exceeds the preset range, it will send a signal to the controller to trigger corresponding safety measures, such as reducing the clamping force or stopping the operation, to ensure the safety and stability of the battery assembly process. The displacement sensor 203 is used to monitor the relative displacement between the clamp and the battery to ensure that the position of the clamping device matches the position of the battery assembly and remains stable during the assembly process. The displacement sensor can sense the position change of the fixture, including the range of motion and relative position of the clamping device, as well as the position of the battery assembly in the fixture. By monitoring the signal of the displacement sensor, the clamping position and strength of the fixture can be adjusted in real time to ensure that the battery assembly is correctly clamped and remains stable during the assembly process, thereby improving assembly accuracy and quality.

[0033] In the above embodiment, the adjustable clamping device 4 includes a clamping arm, on which a clamping pad and a triangular clamp are provided for fixing the battery, and the clamping arm is connected to the mechanical structure of the adjustable clamping device 4 through a rotating shaft; a spiral adjustment device is provided inside the clamping arm, and the spiral adjustment device controls the clamping force through a thread; a pressure sensor is provided on the triangular clamp for monitoring the clamping force state.

[0034] In a specific embodiment, the mechanical structure design of the clamp takes into account the size and shape of the battery to ensure that the clamp can firmly clamp the battery. The mechanical structure of the adjustable clamping device 4 includes a clamping arm and a rotating shaft, through which the operator can adjust the clamping force and position of the clamp to adapt to batteries of different sizes and shapes. The spiral adjustment device controls the clamping force through a thread, and its working principle is similar to the principle of a threaded lever. When the spiral adjustment device rotates, the inclined surface of the thread causes the clamping arm to produce relative movement, thereby changing the clamping force of the clamping pad and the triangular clamp on the battery. This design can achieve precise clamping force adjustment, so that the operator can flexibly control the clamping force of the clamp as needed to adapt to the requirements of different battery assembly processes. The pressure sensor is installed on the triangular clamp to monitor the clamping force state. Common pressure sensor principles include piezoresistive, capacitive, inductive, etc. When the battery is clamped in the clamp, the pressure sensor senses the pressure applied to the battery and converts it into an electrical signal output. After being amplified, filtered and digitally processed, these electrical signals are transmitted to the control system for real-time monitoring of the size and changing trend of the clamping force. The control system receives the signal from the pressure sensor and compares and processes it according to the preset clamping force range. If the clamping force exceeds the preset range, the control system will issue corresponding instructions to adjust the screw adjustment device to restore the clamping force to the appropriate level. At the same time, the control system may also be integrated with other systems, such as safety systems, to ensure that emergency measures can be taken when the clamping force exceeds the safe range to avoid battery damage or operator injury.

[0035] In the above embodiment, the locking device 5 includes a locking rod for clamping or releasing the battery assembly; the locking rod is connected to the locking device bracket through a bearing; the locking device bracket is located below the locking rod; the locking device bracket is fixed to the clamping device by welding, and the locking device bracket is connected to the operating rod through a quick buckle; the operating rod is located above the quick buckle and is used for manually operating the locking device 5; the operating rod is connected to the quick buckle through a pin and a bolt; the quick buckle is connected to the locking rod through a buckle and a spring.

[0036] In a specific embodiment, when the operator manually operates the operating lever, the operating lever applies force downward through the quick buckle connected by the pin and bolt. The quick buckle is subjected to the force of the operating lever, so that the buckle is linked with the spring, moves downward and compresses the spring. After the spring is compressed, the buckle part of the quick buckle connected to the locking rod will move downward, applying force to the locking rod. The locking rod is connected to the locking device bracket through a bearing, and when the locking rod is subjected to force, it will clamp or release the battery assembly. When the operator needs to release the battery assembly, the operating lever is manually lifted upward. The movement of the operating lever releases the quick buckle from the compressed state, and the buckle moves upward in linkage with the spring, releasing the clamping force of the locking rod on the battery assembly. The locking device bracket is fixed to the clamping device by welding to ensure the stability and reliability of the locking device. The linkage between the quick buckle and the operating lever and the locking lever is connected by pins and bolts to ensure the consistency and stability of the operation.

[0037] In the above embodiment, the optical detection system 8 includes a camera 801, which is connected to a control circuit board via a cable; the camera 801 is surrounded by a ring light source 802 on the outer ring; the ring light source 802 is connected to the control circuit board via a cable; a lens system 803 is provided in front of the camera 801; the lens system 803 is composed of a lens and an aperture; the control circuit board is connected to a processor and a storage device via a cable for processing and storing captured image data; a connection interface is provided on the camera 801 for communication and data exchange between other components of the fixture and the optical detection system 8.

[0038] In a specific embodiment, in this multifunctional fixture for battery assembly, the working principle of the optical detection system 8 is as follows:

[0039] t1. Positioning and identification: When the operator places the battery in the fixture, the optical sensor immediately begins scanning and capturing the image of the battery. The image data is transmitted to the controller and analyzed and identified through image processing algorithms to determine key information such as the battery's position, orientation, and size.

[0040] t2. Quality inspection: The optical inspection system can detect quality problems such as surface defects, foreign matter or stains on the battery shell. By comparing with the preset quality standards, the system can determine in real time whether the battery meets the quality requirements. If an abnormality is detected, a signal will be sent to the control system to trigger the corresponding alarm or processing mechanism.

[0041] t3. Position adjustment: If the battery position is detected to be offset or the orientation is incorrect, the optical detection system can send an adjustment signal to the control system. Based on the received signal, the control system adjusts the mechanical structure of the fixture or controls the clamping device to achieve fine-tuning of the battery position to ensure that the battery is correctly placed and clamped.

[0042] t4. Data recording and feedback: The optical inspection system will record the inspection results and processing of each battery, and transmit the data to the controller or upper system for storage and analysis. At the same time, the system can also provide real-time feedback information to the operator, such as displaying the inspection results on the display or issuing sound prompts, to help the operator adjust the operation in time.

[0043] In the above embodiment, the automatic calibration device 10 is composed of a motor and an encoder; the output shaft of the motor is connected to the clamping device through a mechanical structure to drive the clamping device for adjustment; the encoder is installed on the motor shaft to monitor the rotation position and speed of the motor.

[0044] In a specific embodiment, the working process of the automatic calibration device 10 is:

[0045] m1. Initial position detection: When the fixture is started, the automatic calibration device 10 first detects the initial position of the fixture through the encoder. The encoder monitors the rotation of the motor, converts the rotation information into a digital signal, and transmits it to the controller.

[0046] m2. Calibration action execution: The controller issues corresponding instructions based on the preset calibration parameters to drive the motor to perform calibration actions. The calibration action may involve position adjustment, angle rotation or calibration of other parameters of the fixture components to ensure the accuracy and stability of the fixture during operation.

[0047] m3. Feedback control: The encoder continuously monitors the position change of the fixture during the calibration process and transmits real-time data to the controller. The controller performs closed-loop control based on the real-time feedback data and adjusts the execution of the calibration action to ensure that the fixture achieves the expected calibration effect.

[0048] m4. Automatic calibration ends: When the fixture completes the calibration process and reaches the preset calibration standard, the controller stops issuing calibration instructions, and the automatic calibration device 10 enters a standby state. If the calibration does not reach the expected standard, the controller may reissue the calibration instruction or prompt the operator to make manual adjustments.

[0049] In the above embodiment, the programmable controller 3 includes a logic control circuit 301, a motor drive module 302, an encoder interface module 303, a sensor interface module 304, a human-machine interface module 305, a communication interface module 306 and a power supply module 307; the logic control circuit 301 integrates a processor, a memory and an input / output interface; the motor drive module 302 is used to control the motor in the fixture and adjust the clamping force and clamping position of the fixture; the encoder interface module 303 is used to connect the encoder to monitor the position and speed of the motor in real time; the sensor interface module 304 is used to connect the sensor in the fixture; the human-machine interface module 305 is used to interact with the operator; the communication interface module 306 is used to communicate with the host computer; the communication interface module 306 supports serial port communication with the fixture controller as the main node; the power supply module 307 is used to provide power supply for the fixture system.

[0050] In a specific embodiment, the logic control circuit 301 analyzes the instructions received from the human-machine interface module through an algorithm, and then generates corresponding control instructions. The logic control circuit 301 uses a state machine to manage various operating states of the fixture to ensure the order and logic of the workflow. The motor drive module 302 uses pulse width modulation (PWM) technology to achieve precise speed and torque control of the motor. In addition, the motor drive module 302 performs closed-loop control based on the position and speed feedback provided by the encoder interface module to ensure the precise and stable movement of the motor. The encoder provides accurate position and speed feedback by measuring the rotation angle of the motor shaft. The encoder interface module 303 filters, amplifies and decodes the analog or digital signal output by the encoder to provide reliable data to the logic control circuit. The sensor interface module 304 is responsible for collecting and processing environmental parameters obtained from sensors, such as temperature sensors, pressure sensors, etc. By monitoring sensor data in real time, the fault or abnormal state of the fixture can be detected in time, and an alarm can be sent to the logic control circuit. The human-machine interface module 305 provides real-time data display function, and can also perform data analysis and report generation to help operators monitor and optimize the performance of the fixture. The communication interface module 306 supports multiple communication protocols, such as Modbus, CANopen, etc., to achieve compatibility and interoperability with other devices or systems. In addition, the communication interface module 306 is responsible for the safe and efficient transmission and synchronization of data, ensuring the consistency and real-time performance of data between the fixture and other devices. The power module 307 adopts advanced power management technologies, such as switch mode power supply, power management IC, etc., to provide a stable and efficient power supply. At the same time, energy recovery technology is used to feed back the energy during motor braking to the battery or power grid to improve energy utilization efficiency.

[0051] Although the specific embodiments of the present invention are described above, it should be understood by those skilled in the art that these specific embodiments are only examples, and those skilled in the art may omit, replace, and change the details of the above methods and systems in various ways without departing from the principles and essence of the present invention. For example, merging the above method steps so as to perform substantially the same functions in substantially the same manner to achieve substantially the same results is within the scope of the present invention. Therefore, the scope of the present invention is limited only by the appended claims.

Claims

1. A multifunctional fixture for battery assembly, characterized in that: include: A clamp body (1), wherein a sensor system (2) is provided at the center of the top of the clamp body (1); the sensor system (2) is connected to a programmable controller (3) via a wire; an adjustable clamping device (4) is provided above the sensor system (2), and the adjustable clamping device (4) is connected to the clamp body (1) via a mechanical thread; the adjustable clamping device (4) realizes an adjustable clamping force via a rotating shaft connected to the clamp body (1); a locking device (5) is provided above the adjustable clamping device (4); the locking device (5) is connected to the clamping device via a quick buckle; a support structure ( 6); the support structure (6) is distributed around the bottom of the clamp and is connected to the clamp body (1) through a hydraulic device (7); an optical detection system (8) is provided on the left side of the adjustable clamping device (4); the optical detection system (8) is connected to the clamp body (1) through a bracket; an emergency stop button (9) is provided on the front of the clamp body (1); the emergency stop button (9) is connected to a programmable controller (3) through a wire; the programmable controller (3) is installed on the inner side of the front of the clamp body (1); the programmable controller (3) is connected to an automatic calibration device (10) through a wire; the automatic calibration device (10) is installed inside the clamping device.

2. A multifunctional fixture for battery assembly according to claim 1, characterized in that: The sensor system (2) integrates a pressure sensor (201), a temperature sensor (202) and a displacement sensor (203); the pressure sensor (201) is used to monitor the pressure applied by the clamp on the battery, thereby ensuring the stability and safety of the clamp when clamping the battery; the temperature sensor (202) is used to monitor the temperature between the clamp and the battery assembly; and the displacement sensor (203) is used to accurately measure the relative position between the clamp and the battery assembly, thereby realizing alignment and assembly operations.

3. The multifunctional fixture for battery assembly according to claim 1, characterized in that: The adjustable clamping device (4) comprises a clamping arm, on which a clamping pad and a triangular clamp are arranged for fixing the battery, and the clamping arm is connected to the mechanical structure of the adjustable clamping device (4) via a rotating shaft; a spiral adjustment device is arranged inside the clamping arm, and the spiral adjustment device controls the clamping force via a thread; and a pressure sensor is arranged on the triangular clamp for monitoring the clamping force state.

4. The multifunctional fixture for battery assembly according to claim 1, characterized in that: The locking device (5) comprises a locking rod for clamping or releasing the battery assembly; the locking rod is connected to a locking device bracket via a bearing; the locking device bracket is located below the locking rod; the locking device bracket is fixed to the clamping device by welding, and the locking device bracket is connected to the operating rod via a quick buckle; the operating rod is located above the quick buckle and is used to manually operate the locking device (5); the operating rod is connected to the quick buckle via a pin and a bolt; the quick buckle is connected to the locking rod via a buckle and a spring.

5. The multifunctional fixture for battery assembly according to claim 1, characterized in that: The optical detection system (8) comprises a camera (801), wherein the camera (801) is connected to a control circuit board via a cable; the camera (801) is surrounded by an annular light source (802) on its outer ring; the annular light source (802) is connected to the control circuit board via a cable; a lens system (803) is arranged in front of the camera (801); the lens system (803) is composed of a lens and an aperture; the control circuit board is connected to a processor and a storage device via a cable for processing and storing captured image data; a connection interface is arranged on the camera (801) for communication and data exchange between other components of the fixture and the optical detection system (8).

6. The multifunctional fixture for battery assembly according to claim 1, characterized in that: The automatic calibration device (10) is composed of a motor and an encoder; the output shaft of the motor is connected to the clamping device through a mechanical structure, and is used to drive the clamping device to make adjustments; the encoder is installed on the motor shaft, and is used to monitor the rotation position and speed of the motor.

7. The multifunctional fixture for battery assembly according to claim 1, characterized in that: The programmable controller (3) comprises a logic control circuit (301), a motor drive module (302), an encoder interface module (303), a sensor interface module (304), a human-machine interface module (305), a communication interface module (306) and a power module (307); the logic control circuit (301) integrates a processor, a memory and an input / output interface; the motor drive module (302) is used to control the motor in the fixture and adjust the clamping force and clamping position of the fixture; the encoder interface module (303) is used to connect the encoder to monitor the position and speed of the motor in real time; the sensor interface module (304) is used to connect the sensor in the fixture; the human-machine interface module (305) is used to interact with an operator; the communication interface module (306) is used to communicate with a host computer; the communication interface module (306) supports serial communication with the fixture controller as the main node; and the power module (307) is used to provide power supply for the fixture system.