52results about How to "Judge eligibility" patented technology

The invention provides a board inspection method. In order to inspect a board, first, an inspection area including a solder joint is provided with a first light having a first color, a second light having a second color and a third light having a third color at a first inclination angle, a second inclination angle smaller than the first inclination angle and a third inclination angle smaller than the second inclination angle with respect to the board, respectively. Then, a color image of the inspection area is acquired according to the first light, the second light and the third light provided to the inspection area. Thereafter, it is inspected whether the solder joint is good or bad by using a color distribution in the color image. Then, the inspection result is verified by using pre-measured height information of the solder joint. Thus, an inspection error may be prevented.

The invention discloses a matching precision detector for an automobile part.A clamping mechanism and a gap detection mechanism of the matching precision detector are installed on a coordinate base, a clamp located at the upper end of the clamping mechanism is used for clamping a to-be-detected part placed on the upper surface of a simulation block base, and a first safety pin is positioned on the lower portion of a go / no go gauge safety pin.A go gauge part and a no-go gauge are sequentially arranged in the middle of the go / no go gauge safety pin from bottom to top, and the upper portion of the go / no go gauge safety pin is provided with a push rod part.The gap detection mechanism further comprises a base, a clamping plate, a left fixed plate and a right fixed plate, wherein the left fixed plate and the right fixed plate are located on the upper surface of the base and parallelly arranged.The rear end of a rotating arm is movably installed between the left fixed plate and the right fixed plate, the clamping plate is installed at the front end of the rotating arm, and four corners of the coordinate base each are provided with a hanging rod.According to the matching precision detector, part gaps can be detected quickly and visually, and the matching precision detector is high in detection reliability and detection efficiency and enables users to quickly and visually judge whether the part is qualified.

The invention discloses a nozzle positioning and measuring device and method, comprising a positioning mechanism, a measuring mechanism and a wire hammer; the positioning mechanism includes an adjusting bolt, a nut, an adjusting plate, an expansion ring and a positioning seat; the top of the positioning seat is fixed with a plurality of The guide column is provided with a positioning hole on the adjustment plate, the positioning hole is matched with the guide column, and there is a certain distance between the adjustment plate and the top of the positioning seat, and an expansion ring is fixed between the adjustment plate and the positioning seat , the adjusting bolt passes through the positioning seat and the adjusting plate in turn from the bottom of the positioning seat upwards, and cooperates with a nut; the measuring mechanism includes a frame for connecting with the top head of the pressure vessel and a detection ruler fixed on the frame. The detection ruler is provided with a plurality of circular grooves, and the circular grooves are used to judge the center of the wire hammer; the wire hammer is fixed at the center of the bottom of the adjusting bolt.

The invention discloses a deviation rate calculation method and a secondary ion mass spectrometry analysis method. Including providing the sample to be tested and the standard sample, and integrating the sample to be tested and the standard sample in the same coordinate system; and performing Gaussian smoothing on the sample to be tested and the standard sample while ensuring that the area and curvature of the area remain unchanged processing; the processed sample to be tested and the standard sample are subjected to a point-to-point division process to obtain a fitting curve; the available area is defined in the fitting curve; the deviation rate is obtained from the available area; the ion implantation angle is obtained The deviation is proportional to the deviation rate, so that it can be clearly judged whether the equipment needs maintenance, saving time and consumables; and it can detect the early minor abnormalities of the ion implanter and give the direction of improvement.

The invention provides a detection tool for a wiper linkage output shaft and belongs to the technical field of vehicle part detection. The detection tool is used for detecting the eligibility of wiper linkage output shafts. The detection tool comprises a base, a sleeve, a floating block and a position-limiting part. A cover plate connected with the base is arranged above the base. A horizontal channel is formed between the base and the cover plate. The base is provided with an installation hole arranged to pass through the base. The aperture of the hole is larger than the outer diameter of the floating block and the hole is perpendicular to the upper surface of the base. The floating block is arranged in the installation hole. The floating block is provided with a peripheral flange that extends towards the channel. The flange is in sliding fit with the channel. The position-limiting part limits the sliding range of the flange. The floating block is provided with a through hole matched with the sleeve. The sleeve is provided with a detection hole configured to axially pass through the bottom surface of the sleeve. The sleeve is also provided with a position-limiting structure used for limiting the downward-sliding extreme position of the sleeve. According to the technical scheme of the invention, the detection tool can be used for comprehensively detecting the angle and the locating information of the wiper linkage output shaft. The detection accuracy is improved. Meanwhile, the quality problem and the scrapped condition of qualified products are avoided.