46results about How to "Realize automatic positioning function" patented technology

The invention provides an unmanned aerial vehicle battery automatic changing device. The unmanned aerial vehicle battery automatic changing device comprises a guide rail, a housing, a guide wheel, a vision positioner, a controller, a safety lock and a battery rack. The invention further provides an unmanned aerial vehicle battery automatic changing method which can simultaneously carry out batterycharging, changing and transmission, provides high-strength continuous flight operation of the unmanned aerial vehicle and is integrated with automatic positioning, charging and changing.

The invention discloses a cross-type binocular camera calibration method based on automatic positioning. First, two CMOS cameras are selected as binocular cameras, and the shooting posture and cross angle of view of the binocular cameras are adjusted. Calibrate the board image, calculate the corner pixel coordinate information under different poses, calibrate the parameter matrix of the cross-type binocular camera, and establish the camera imaging model; collect the workpiece image synchronously again, use the image processing algorithm to separate the background to obtain the image domain, and extract the image pair The two-dimensional pixel coordinate information of the workpiece feature point matching; finally, the two-dimensional pixel coordinates after the feature point matching are input into the camera imaging model in pairs, and its three-dimensional coordinates in the main camera space coordinate system are obtained to realize the automatic positioning function. The invention fully considers the practical problems such as feature point occlusion and loss in the imaging process, and effectively improves the calibration accuracy by changing the camera intersection angle, and the positioning accuracy is within 5%, which has strong practicability.

The invention relates to the field of welding auxiliary devices, in particular to an automatic positioning fixture for cable head welding, comprising a cart, a controller, a lifting mechanism and a positioning mechanism. Plate and sliding assembly, the sliding assembly is arranged inside the groove, the lifting plate is fixedly arranged on the top of the sliding assembly, and the positioning mechanism is arranged on the top of the lifting plate to realize the automatic positioning of the cable head welding, and the positioning mechanism includes A horizontal sliding plate, a driving assembly and a clamping assembly, the driving assembly is arranged on the top of the lift plate, the horizontal sliding plate is slidably arranged on the driving assembly, the controller is fixedly arranged on the top of the horizontal sliding plate, and the clamping assembly is arranged on the top of the horizontal sliding plate. On the top of the horizontal sliding plate, the sliding component, the driving component and the clamping component are all electrically connected with the controller. The automatic positioning fixture for cable head welding of the present invention does not require manual holding, has anti-skid function, and can be effectively fixed at the same time. , improve the welding quality.

A mounting structure of a refrigerator door comprises a door housing. Door shaft sleeves are disposed at the upper and lower ends of one side of the door housing respectively. A hinge plate is disposed on a refrigerator body and is provided with a door shaft. The door shaft is nested in door shaft holes of the door shaft sleeves. The outer periphery of the door shaft sleeves are arc surfaces. Centers of the arc surfaces and centers of the door shaft holes are eccentric. The arc surfaces are provided with positioning grooves, and the right shoulder of each positioning groove is lower than the left shoulder. Radius of the arc surface of the right shoulder of each positioning groove is larger than that of the left shoulder of the positioning groove. The mounting structure further comprises a pressure spring. The pressure spring comprises a pressure spring body, a pressure spring arm and a pressure spring head, the pressure spring body is fixedly connected to the hinge plate, the pressure spring body is fixedly connected with one end of the pressure spring arm, the pressure spring head is disposed at the other end of the pressure spring arm, and the pressure spring head fits with the positioning grooves. The mounting structure of the refrigerator door allows for the function that a door is automatically positioned in opening and automatically resets in closing and is simple in structure, convenient to mount and lower in cost.

An automatic positioning device of an automobile bumper comprises a rotary table and a positioning mechanism. The positioning mechanism comprises a transverse rotary air cylinder, a swinging arm, a first positioning pin and a height adjustment device, wherein the tail end of a transverse rotary piston rod of the transverse rotary air cylinder is connected with the swinging arm; a U-shaped hole groove is formed in the other end of the swinging arm, and a first positioning pin penetrates through the U-shaped hole groove so as to divide the U-shaped hole groove into an upper groove area and a lower groove area; a spring of the height adjustment device is arranged in the lower groove area; a first fixing block and a lead screw of the height adjustment device are arranged in the upper groove area; the first fixing block is arranged at the top of the upper groove area; the lead screw penetrates through the first fixing block and extends into the upper groove area; the first positioning pin is fixedly installed in the U-shaped hole groove through a second fixing block; and the lead screw spirally downwards presses the second fixing block and the spring to adjust the height of the first positioning pin. According to the automatic positioning device of the automobile bumper, automatic positioning and avoiding of the positioning pin are realized, the structure is simple, operation and control are simple and convenient, machining flexibility is higher, machining efficiency is high, positioning accuracy is effectively controlled, operation continuity is high, and safety is high.