Electronic scale calibration device based on mechanical arm

Abstract

The utility model discloses an electronic scale calibration device based on a mechanical arm, which comprises a standard weight library, a camera, a mechanical arm structure, a weight grabbing device and a mechanical arm controller, the weight grabbing device is connected to the front part of the mechanical arm structure, and the camera is arranged on the mechanical arm structure. The camera is connected with an information input interface of the mechanical arm controller through a data line; a power line and a control line of the mechanical arm structure are connected with the mechanical arm controller; a series of calibration weights with different weights are placed in the standard weight library. According to the utility model, through accurate control of the mechanical arm, rapid and accurate calibration of the electronic scale is realized.

Description

Technical Field

[0001] This utility model belongs to the field of electronic scale calibration devices, specifically relating to an electronic scale calibration device based on a robotic arm. Background Technology

[0002] Electronic scales, as important measuring tools, are widely used in various fields. However, due to factors such as the usage environment and operating methods, the accuracy and precision of electronic scales often deviate, requiring regular calibration. Traditional electronic scale calibration methods mainly rely on manual operation, which is cumbersome, inefficient, and lacks accuracy. Current research on automated verification of electronic balances also shows that calibration is performed by manually placing standard weights, which is not only inefficient but also prone to human error due to repetitive operations. Therefore, an automatic verification device for electronic balances has been developed. This device uses a robotic arm to verify the electronic balance and read its readings. The results show that automatic verification has high accuracy and improves work efficiency, replacing manual verification. The working principle of an electronic scale is based on Hooke's Law or the lever balance principle of forces. A sensor converts the weight of an object into an electrical signal. External pressure causes the elastic beam of the sensor to deform, resulting in a change in resistance of the strain gauge attached to it. Under the action of an excitation voltage, an analog electrical signal proportional to the measured object is output and fed to the AD circuit. The analog-to-digital (AD) circuit of an electronic scale modulates, amplifies, filters, samples, and integrates the analog signal from the sensor, outputting a stable and efficient digital signal. This signal is then sent to the central microprocessor (CPU), which controls the internal program to display the weight of the measured object through the display circuit. Calibration aims to ensure the accuracy of this conversion process, eliminate systematic errors, and ensure that the scale's displayed value matches the actual mass value.

[0003] In conclusion, developing an automatic calibration device for electronic scales based on a robotic arm is of practical significance and application value in order to meet the demands of modern industry for high-precision measurement by improving calibration accuracy and efficiency. Utility Model Content

[0004] The purpose of this invention is to provide an electronic scale calibration device based on a robotic arm, which enables rapid and accurate calibration of the electronic scale through precise control of the robotic arm.

[0005] The technical solution is as follows:

[0006] The electronic scale calibration device based on a robotic arm includes: a standard weight library, a camera, a robotic arm structure, a weight gripping device, and a robotic arm controller. The weight gripping device is connected to the front of the robotic arm structure, and the camera is mounted on the robotic arm structure. The camera is connected to the information input interface of the robotic arm controller via a data cable. The power cord and control cord of the robotic arm structure are connected to the robotic arm controller. The standard weight library contains a series of calibration weights of different weights.

[0007] Furthermore, the robotic arm structure is equipped with an electronic scale interface, which is connected to the information input interface of the robotic arm controller via a data cable.

[0008] This utility model has the following advantages compared with the prior art:

[0009] 1. High degree of automation: Through the precise control of the robotic arm and automation technology, the electronic scale is automatically calibrated, reducing the error and labor intensity of manual operation.

[0010] 2. High calibration accuracy: The use of a high-precision robotic arm and calibration weight library ensures the accuracy and reliability of the calibration process.

[0011] 3. High efficiency: Through preset calibration procedures and automated control, the electronic scale can be calibrated quickly, improving calibration efficiency.

[0012] 4. Wide range of applications: The device of this invention can adapt to the calibration needs of electronic scales in different industries and fields, and has a wide range of application prospects. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the electronic scale calibration device based on a robotic arm in this utility model. Detailed Implementation

[0014] The following description fully illustrates specific embodiments of the present invention to enable those skilled in the art to practice and reproduce it.

[0015] like Figure 1 The figure shown is a schematic diagram of the electronic scale calibration device based on a robotic arm in this utility model.

[0016] The electronic scale calibration device based on a robotic arm includes: a standard weight library 1, a weight gripping device 2, a camera 3, a robotic arm structure 4, and a robotic arm controller 5. The weight gripping device 2 is connected to the front of the robotic arm structure 4, and the camera 3 is mounted on the robotic arm structure 4. The power cord and control cord of the robotic arm structure 4 are connected to the robotic arm controller 5.

[0017] The standard weight library 1 contains a series of calibration weights of different weights to provide an accurate reference weight for the electronic scale during calibration. The standard weight library 1 can be expanded as needed to accommodate electronic scale calibration requirements of varying accuracy and range. The camera 3 is connected to the information input interface of the robotic arm controller 5 via a data cable.

[0018] The robotic arm controller 5 issues commands to control the robotic arm structure 4, which in turn moves the weight-grabbing device 2 and the camera 3 to grab weights from the standard weight library and place them at different positions on the electronic scale for calibration. The camera 3 then reads the weight values, and after placing the weights, it takes pictures and identifies the readings on the electronic scale.

[0019] The robotic arm structure 4 is equipped with an electronic scale interface, enabling data interaction and control command transmission. Through this interface, the electronic scale connects to the information input interface of the robotic arm controller 5 via a data cable; it can read the real-time weighing data of the electronic scale and calibrate and adjust the scale as needed. The robotic arm structure 4 simulates manual operation, precisely placing and moving the electronic scale. The robotic arm possesses high flexibility and positioning accuracy, and has visual recognition capabilities, ensuring accurate control of the weight and position of items during calibration. The electronic scale interface connects the robotic arm structure 4 and the electronic scale, enabling data interaction and control command transmission. Through this interface, the real-time weighing data of the electronic scale can be read, and the scale can be calibrated and adjusted as needed.

[0020] The robotic arm controller 5 is responsible for the automated control and calibration process management of the entire device. According to the preset calibration program, it directs the robotic arm structure 4 to complete operations such as grabbing, placing and moving weights, while monitoring the weighing data of the electronic scale in real time and making adjustments as needed.

[0021] According to a preset calibration procedure, the control system directs the robotic arm structure 4 to retrieve a weight of a specified amount from the calibration weight library and precisely place it on the weighing platform of the electronic scale. Then, the robotic arm controller 5 reads the real-time weighing data from the electronic scale via its interface and compares it with the standard value. If a deviation exists, the robotic arm controller 5 instructs the robotic arm structure 4 to fine-tune the electronic scale to eliminate the error. After calibration, the robotic arm controller 5 records the calibration data and generates a calibration report.

[0022] The terminology used in this invention is descriptive and exemplary, and not restrictive. Since this invention can be embodied in various forms without departing from the spirit or essence of the technical solution, it should be understood that the above embodiments are not limited to any of the foregoing details, but should be interpreted broadly within the spirit and scope defined by the appended claims. Therefore, all variations and modifications falling within the scope of the claims or their equivalents should be covered by the appended claims.

Claims

1. An electronic scale calibration device based on a robotic arm, characterized in that, include: The system includes a standard weight library, a camera, a robotic arm structure, a weight gripping device, and a robotic arm controller. The weight gripping device is connected to the front of the robotic arm structure, and the camera is mounted on the robotic arm structure. The camera is connected to the information input interface of the robotic arm controller via a data cable. The power cord and control cord of the robotic arm structure are connected to the robotic arm controller. The standard weight library contains a series of calibration weights of different weights.

2. The electronic scale calibration device based on a robotic arm as described in claim 1, characterized in that, The robotic arm structure is equipped with an electronic scale interface, which is connected to the information input interface of the robotic arm controller via a data cable.

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