Laser contourgraph

Abstract

The utility model discloses a laser contourgraph which comprises a working platform, a laser device and a driving mechanism used for controlling the laser device to move, and the driving mechanism is arranged on the working platform. The laser device comprises a laser transmitter and a laser receiver, and the self-adaptive control system is arranged on the laser device. According to the laser contourgraph, laser equipment is adopted, the laser contourgraph cannot make contact with the surface of a measured object during measurement, damage to the surface of the measured object can be reduced, and meanwhile higher measurement precision and speed can be provided.

Description

Technical Field

[0001] The utility model belongs to the technical field of precision measurement, and specifically relates to a laser profiler. Background Art

[0002] When measuring a battery cell shell using a profilometer, the probe contacts the surface of the shell. However, due to the characteristics of contact measurement, this can cause some damage to the shell surface. Due to the limitations of physical contact, contact measurement has low accuracy and is difficult to meet today's high-precision and high-efficiency measurement needs. Furthermore, its speed is slow, which affects measurement efficiency.

[0003] Chinese patent application number 202121356928.5 discloses a profilometer for measuring the surface topography and contour of a workpiece. The profilometer comprises an inductive sensing device and an electrical system. The inductive sensing device includes a support base, a support lever, an inductive sensor, a measuring rod, a stylus, and a measuring force adjustment device. The inductive sensor includes a solenoid coil and a magnetic core. The measuring force adjustment device includes an adjustment coil, a movable member, a buffer member, and a fixed member. The adjustment coil is mounted on the support base. The lower end of the fixed member is fixedly connected to the support lever, the upper end of the fixed member is connected to the lower end of the buffer member, and the upper end of the buffer member is connected to the lower end of the movable member. The movable member extends into the adjustment coil. When the measuring force is adjusted, the displacement value measured by the inductive sensing device output from the computer is converted into a voltage signal by a D / A converter and applied to the adjustment coil. The movable member moves up and down to different positions, and the movable member applies force to the buffer member, causing the support lever to rotate, thereby adjusting the measuring force applied by the stylus on the workpiece.

[0004] It is hoped to provide an improved laser profiler, particularly with regard to how to improve the measurement accuracy of battery cell casings. Utility Model Content

[0005] The utility model aims to solve at least one of the technical problems existing in the prior art. To this end, the utility model provides a laser profiler, the purpose of which is to improve measurement accuracy.

[0006] In order to achieve the above-mentioned purpose, the technical solution adopted by the present invention is as follows: the laser profiler includes a working platform, a laser device and a driving mechanism for controlling the movement of the laser device, and the driving mechanism is arranged on the working platform.

[0007] The driving mechanism includes a driving motor and a transmission mechanism connected to the driving motor, and the transmission mechanism is connected to the laser device.

[0008] The transmission mechanism is a screw-nut mechanism.

[0009] The transmission mechanism is arranged horizontally.

[0010] The working platform is provided with a fixture for clamping the object to be measured.

[0011] The laser device includes a laser transmitter and a laser receiver.

[0012] The laser profiler of the utility model adopts laser equipment and does not contact the surface of the measured object during measurement, which can reduce damage to the surface of the measured object and provide higher measurement accuracy and speed. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] This manual includes the following drawings, which show the following contents:

[0014] Figure 1 It is a structural schematic diagram of the laser profiler of the utility model;

[0015] The following are marked in the figure:

[0016] 1. Work platform; 2. Drive motor; 3. Fixture; 4. Bracket; 5. Laser equipment; 6. Lead screw; 7. Adaptive control system. DETAILED DESCRIPTION

[0017] The following is a further detailed description of the specific implementation methods of the present invention by describing the embodiments with reference to the accompanying drawings, with the aim of helping those skilled in the art to have a more complete, accurate and in-depth understanding of the concept and technical solution of the present invention and to facilitate its implementation.

[0018] like Figure 1 As shown, the utility model provides a laser profiler, which includes a working platform, a laser device and a driving mechanism for controlling the movement of the laser device, wherein the driving mechanism is arranged on the working platform.

[0019] Specifically, if Figure 1 As shown, the laser device consists of a laser transmitter and a laser receiver. Using a laser device, measurement avoids contact with the surface of the object being measured, minimizing damage to the surface while also providing higher measurement accuracy and speed. The adaptive control system monitors the environment and relevant data about the object being measured in real time. The adaptive control system is installed on the laser device and primarily comprises a signal receiving unit, a signal processing unit, and a motion control unit. The signal processing unit is electrically connected to the signal receiving unit, the motion control unit, and the laser device, and the motion control unit is electrically connected to the drive motor. The signal receiving unit is responsible for receiving the signal transmitted by the laser receiver. The signal processing unit processes the signal using an algorithm and pre-set data such as the object's shape, size, and material. The processed signal is then transmitted to the motion control unit and the laser device. The motion control unit controls the drive motor to adjust the scanning speed and measurement distance, and the laser device adjusts the laser power based on the signal.

[0020] like Figure 1 As shown, the driving mechanism includes a driving motor and a transmission mechanism connected to the driving motor, the transmission mechanism is connected to the laser device, and the driving motor is fixedly installed on the working platform.

[0021] In this embodiment, if Figure 1 As shown, the transmission mechanism is a screw-nut mechanism. The screw 6 of the screw-nut mechanism is rotatably mounted on the work platform. The screw 6 is arranged horizontally. The nut that cooperates with the screw 6 is fixedly connected to the bracket, which is fixedly connected to the laser device. A guide rod is provided on the work platform to guide the bracket. The guide rod is parallel to the screw 6. When the drive motor is running, the laser device is driven to move linearly in the horizontal direction through the transmission mechanism.

[0022] like Figure 1 As shown, the work platform is equipped with a placement surface for placing the object to be tested and a fixture for clamping the object to be tested. The object to be tested is the battery cell casing, which is made of aluminum. The fixture is responsible for fixing the aluminum casing to prevent the aluminum casing from moving during the test and affecting the test results.

[0023] The laser device is set above the working platform for movement, which can greatly reduce the impact of the shaking of the laser device on the detection results during measurement, thereby further improving the accuracy of the measurement results.

[0024] Compared to traditional profilometers, this new laser profilometer utilizes non-contact measurement, reducing damage to the aluminum shell caused by physical factors. Utilizing laser scanning technology, the new laser profilometer offers high measurement speed and accuracy, significantly improving detection efficiency. Compared to other types of laser profilometers, it also incorporates an adaptive control system that monitors environmental parameters and those of the object being measured in real time, automatically adjusting laser transmitter and receiver parameters, such as laser power and scanning speed, based on the monitoring results. During the measurement process, the bracket moves above the work platform, minimizing vibrations of the laser device during movement and improving measurement accuracy. After the test is complete, the resulting data can be connected to a computer for rapid and accurate data analysis.

[0025] The following uses the laser profiler to detect the extreme difference of aluminum shell as an example to illustrate the specific working process:

[0026] Before starting the measurement, the laser profiler must be checked to ensure that it is in normal working condition and all components are complete and functioning properly.

[0027] When preparing the aluminum shell, ensure that the surface of the aluminum shell is clean and free of impurities and obstructions to avoid affecting the accuracy of the test results.

[0028] When starting the measurement, set the appropriate laser scanning parameters according to the size, shape and measurement requirements of the aluminum shell, and then fix the aluminum shell on the work platform to ensure its stability to avoid errors caused by movement of the aluminum shell during the measurement process.

[0029] Start laser scanning and let the laser collect data along the part to be tested of the aluminum shell. During the scanning process, the laser is emitted by the laser transmitter, which shines on the surface of the aluminum shell, and then reflected by the surface of the aluminum shell and shines on the laser receiver. The obtained signal is then fed back to the adaptive control system. The parameters of the laser transmitter and laser receiver can be automatically adjusted during the detection process.

[0030] After the test is completed, the obtained data is connected to the computer data processing system, which can conveniently calculate the range of the aluminum shell based on the data of the aluminum shell benchmark and the test part.

[0031] The above description of the present invention is provided as an example, in conjunction with the accompanying drawings. Obviously, the specific implementation of the present invention is not limited to the above-described method. Any non-substantial improvements made using the method concepts and technical solutions of the present invention, or any application of the above-described concepts and technical solutions of the present invention to other situations without modification, are all within the scope of protection of the present invention.

Claims

1. Laser profiler, characterized by: It includes a working platform, a laser device and a driving mechanism for controlling the movement of the laser device, wherein the driving mechanism is arranged on the working platform; The laser device includes a laser transmitter and a laser receiver. The adaptive control system is provided on the laser device. The adaptive control system includes a signal receiving unit, a signal processing unit and a motion control unit. The signal processing unit is electrically connected to the signal receiving unit, the motion control unit and the laser device. The motion control unit is electrically connected to the drive motor. The work platform is provided with a placement surface for placing the object to be measured and a fixture for clamping the object to be measured. The object to be measured is a battery cell shell, and the battery cell shell is an aluminum shell.

2. The laser profiler according to claim 1, wherein: The driving mechanism includes a driving motor and a transmission mechanism connected to the driving motor, and the transmission mechanism is connected to the laser device.

3. The laser profiler according to claim 2, wherein: The transmission mechanism is a screw-nut mechanism.

4. The laser profiler according to claim 3, wherein: The transmission mechanism is arranged horizontally.

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