In recent years, the manufacturing industry has developed in the direction of informatization, and the manufacturing technology has been steadily improved in the direction of automatic intelligence and high added value. The assembly positioning technology in the manufacturing industry has undergone a transition from manual positioning assembly to automated positioning assembly, and developed countries have formed digital assembly technology. However, in the positioning and assembly of complex products, it faces problems such as complex installation procedures. In order to improve production flexibility, it is necessary to introduce professional and technical personnel to participate in product manufacturing.
With the in-depth application of MBD technology in the aviation manufacturing industry, aircraft component assembly technology is developing towards flexibility. Digital equipment for aircraft assembly positioning has been widely used in domestic main airports, but it cannot be positioned for small parts installed inside the fuselage. The number of small connectors is huge, and the traditional analog quantitative methods such as locator assembly fixtures and manual scribing are the main methods, which are prone to human-caused quality problems. Laser projection realizes digital positioning of small connectors and digital assembly. The laser projection content can be quickly adjusted to achieve flexible assembly.
The three-dimensional laser projection positioning technology is that the laser emits a visible laser beam, forms a light spot on the surface of the component to be projected, the double galvanometer reciprocates to deflect to a certain frequency, and the light spot moves on the projection surface to form the projected image to be positioned. Directs the operator to assemble components to the correct location on the projected surface. When the laser projection system moves, the projection image can be projected and positioned to the exact position of the projected parts, ensuring the accuracy of the guidance system assembly. The three-dimensional laser projection positioning technology is a real-time combined system technology, which realizes the real-time compensation of the position of the mobile laser projection system, and the projection file needs to be produced before the system works. The laser receiver receives the laser signal to calculate the current position coordinates, and the control system can process the pose of the projection system.
The laser receiver and the projection bearing coordinate system are calibrated to form a whole. When the projection system moves, the laser transmitter sends out an infrared signal to capture the position of the laser receiver, so that the laser light can be projected to the exact position. The three-dimensional laser projection positioning technology is to solve the projection coordinate system. The laser light source emits the laser beam and then shoots the target reflector to record the rotation angle of the rotating shaft. By controlling the rotation angle of the shaft to change the laser propagation direction, the target reflector retroreflects the laser line to the projection system according to the original optical path, and the control processing system calculates the horizontal angle of the center of the reflected target head, and makes the three-dimensional coordinates of the multiple target reflectors as a calibration file , according to the definition sequence of the target reflector, control the rotation angle of the galvanometer through the XY galvanometer, solve the spatial coordinate value of the center of each target reflector, determine the spatial position parameters of the projection coordinate system, and use the projection frame to calibrate the coordinates to represent the projection coordinate system.
The 3D laser projection positioning technology forms a complete picture by projecting the laser beam onto the curved surface of the working area, and observing the laser on the projected curved surface. Experiments such as fastener projection hole-making are carried out on typical aircraft panel specimens. Design and manufacture of special test pieces, mainly including skins, truss joints, etc. Design and manufacture the test piece assembly frame. Design and manufacture special test pieces, the main parts are truss joints, wall plate joints, etc. The test pieces include fasteners connecting the parts.
The 3D laser projection positioning technology forms a complete picture by projecting the laser beam onto the curved surface of the working area, and observing the laser on the projected curved surface. Experiments such as fastener projection hole-making are carried out on typical aircraft panel specimens. Design and manufacture of special test pieces, mainly including skins, truss joints, etc. Design and manufacture the test piece assembly frame. Design and manufacture special test pieces, the main parts are truss joints, wall plate joints, etc. The test pieces include fasteners connecting the parts.
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Changshu Desheng Optical Electronics Co., Ltd. is a supplier of industrial laser diode modules in China. The company focuses on the planning, development and manufacture of high-stability, high-quality laser modules. Welcome to visit our website to contact us or learn more.