39results about How to "Improve edging accuracy" patented technology

The invention discloses an arc glass edge grinding machine. The arc glass edge grinding machine comprises a box body, positioning suction cups and a grinding mechanism. The positioning suction cups are connected with the box body through a first cantilever. The other end of the first cantilever is connected with a second cantilever in a rotating manner. The end of the second cantilever is connected with a grinding mechanism. The grinding mechanism comprises an arc-shaped supporting frame, a fixed box, a positioning buckle plate and a first motor. The top end of the arc-shaped supporting frame is connected with the fixed box. The positioning buckle plate is arranged on the side face of the fixed box. The first motor is limited by the positioning buckle plate. A second motor, a hydraulic oil tank and a draught fan are arranged in the box body. An air inlet pipe and an air outlet pipe are arranged on the draught fan. The arc glass edge grinding machine is simple in structure and high in practicability, can conduct edge grinding on arc-shaped edges of conventional glass and can conduct arc edge grinding on glass of different sizes as well, the stability of glass during edge grinding is improved, glass uniformly bears force, the service life of the edge grinding machine is prolonged, and economic benefits are remarkable.

The invention discloses an edge precision control method of a large aperture optical element being processed through air bag polishing, and relates to a method for controlling edge precision in an air bag polishing element processing process, belonging to the field of optical processing. With the adoption of the edge precision control method, the problems that in the existing optical element processing process, in order to overcome 'edge effect', the risk of damaging main face precision is high, the cost is high, and the efficiency is low are solved. The method comprises the following steps: acquiring an edge area removing function of materials corresponding to the element to be processed; establishing an edge area removing function library of the element to be processed; calculating the width of an edge area of the element to be processed according to gap m of a polishing path and compression amount fi of a polishing air bag; extracting the corresponding removing function; setting residence time tn of the edge area removing function; carrying out error contour predication calculation on the edge area of the element to be processed, so as to acquire surface-shape error of the edge area of the element to be processed; estimating the surface-shape error; and acquiring a residence time value of the removing function responding to the edge position of the element to be processed, so as to generate a polishing file ,and executing a polishing process. The edge precision control method provided by the invention can be widely applied in the edge precision control processing process of large aperture opt elements.

The invention discloses a dinner plate edging method based on vision control. The method comprises the following steps: clamping and locating a dinner plate to be edged, and acquiring images of the dinner plate by virtue of two cameras which are symmetrically arranged at the two sides of the dinner plate; integrating the images through pre-treatment, image registration and fusion processing, and then extracting contour features to generate a complete dinner plate contour drawing; comparing the dinner plate contour drawing with a theoretical CAD model of the dinner plate, and obtaining a central position and a deviation angle of the current clamping and locating; and carrying out coordinate offset in a numerical control system according to the central position and the deviation angle, and controlling an edging unit to realize edging for the dinner plate by the numerical control system after the coordinate offset according to G code corresponding to the theoretical CAD model. According to the method disclosed by the invention, the two cameras which are symmetrically distributed at the two sides of the dinner plate are used for carrying out contour acquisition on the edge of the dinner plate, at a machining station, comprehensive acquisition and control for the contour of the dinner plate can be realized, and the G code is finally used for machining; and the method has the advantages of high edging quality, high machining efficiency and the like.

The invention provides an edge detection method and a device of an object in an image, an electronic equipment, and a computer-readable storage medium. The method includes: a line drawing of a grayscale contour in the image is obtained; similar lines in the line drawing are merged to obtain initial merged lines, and a boundary matrix is determined according to the initial merged lines; similar lines in the initial merged lines are merged to obtain target lines, and unmerged initial merged lines are also used as target lines; reference boundary lines are determined from the target lines according to the boundary matrix; boundary line regions of the object in the image are obtained; a target boundary line corresponding to the boundary line region is determined from the reference boundary lines; an edge of the object in the image is determined according to the determined target boundary lines.

Provided are a special-shaped glass remote control cutting, breaking and grinding integrated processing production line and an operation method thereof. The processes of cutting, edge breaking, edge grinding and the like are integrated to efficiently process all kinds of special-shaped glass in a fully automatic mode at a time, precision, stability and quickness are achieved, waste is treated by itself, and the performance of the whole machine is excellent. Operation is easy, use is safe and convenient, the rate of finished products reaches up to 99.96%, and production quality and efficiency are greatly improved. Energy saving and environment friendliness are achieved, production cost is reduced by 50%, and the requirements of the production processes and the need of a special-shaped glass deep processing production line for fast development and changes are met. The special-shaped glass remote control cutting, breaking and grinding integrated processing production line is composed of a glass GPS positioning and navigation system, a special-shaped glass remote control cutter, a special-shaped glass remote control edge breaking machine, a special-shaped glass remote control edge grinding machine, a glass remote control cleaning machine, a glass control conveying device, a sensing conveying device, a first servo motor, a first ball screw, a cutting linkage mechanical arm, an edge breaking linkage mechanical arm, an edge grinding linkage mechanical arm and the like.

The invention discloses an image processing method, device and equipment and a storage medium. The method comprises the following steps: extracting an image frame in a video image as an initial illumination image; smoothing texture details of the initial illumination image; and improving the edge precision of the initial illumination image after smoothing processing to serve as a target image. According to the invention, an image frame in a video image is extracted as an initial illumination image; smoothing processing is performed on texture details of the initial illumination image; the image quality is improved, the edge precision is improved, the output target image is enabled to be smooth with excessive texture details, more contour information in the image is reserved, the display effect is improved, rapid processing of the enhanced image in dark light is realized, the time overhead of an image processing process is reduced, the real-time performance of video recording is improved, and the user experience degree is enhanced.

The invention discloses a full-automatic four-edge linear refining mill for glass, which comprises a sheet feeding table and a sheet discharging table, wherein clamping and transmitting devices are arranged on the sheet feeding table and the sheet discharging table respectively; each clamping and transmitting device comprises upper roller ways and lower roller ways; and the glass to be transmitted is positioned between the upper roller ways and the lower roller ways. The refining mill further comprises a bracket, a moving track, milling blade motor sets, coarse-grinding carborundum wheels, medium-grinding carborundum wheels and polishing wheels; each set of the two milling blade motor sets comprises three milling blade motors; the coarse-grinding carborundum wheels, the medium-grinding carborundum wheels and the polishing wheels are respectively mounted on the three milling blade motors. According to the invention, with the upper roller ways and the lower roller ways, the glass fixing strength is strong so as to ensure reliable positioning of the glass from coarse grinding to fine grinding and ensure the edge grinding quality; and with the coarse-grinding carborundum wheels, the medium-grinding carborundum wheels and the polishing wheels, four-edge coarse grinding and fine grinding of the glass can be realized at one time, the production efficiency is high and the edge grinding accuracy is high.

The invention belongs to the technical field of optical glass production, and particularly relates to automatic edge polishing equipment for optical glass. The automatic edge polishing equipment for the optical glass comprises a tank, a first motor, a first connection shaft, a positioning base, a grinding module, an edge polishing module, a spraying module and a compressing module; the first motoris fixed to the bottom of the tank; the first connection shaft is located inside the tank; the lower end of the first connection shaft is connected with an output shaft of the first motor; the positioning base is located inside the tank and is in a disk shape; the lower surface of the positioning base is connected with the upper end of the first connection shaft; the axis of the positioning baseand the axis of the first connection shaft are located on the same straight line; the grinding module is located on the right side of the positioning base; the edge polishing module is located on theleft side of the positioning base; the spraying module is located above the positioning base and inside the tank; and the compressing module is located above the positioning base and used for compressing the optical glass.

The invention discloses an automatic feeding controlling method for a glass edge grinding machine. The automatic feeding controlling method for the glass edge grinding machine comprises the followingsteps that a feeding system is built; the feeding system comprises a clamping unit, a detecting unit, an execution unit, and a controlling unit; the clamping unit, the execution unit, and the controlling unit are electrically connected with the controlling unit. According to the controlling unit controls the clamping unit, the detecting unit, and the execution unit to work, so that the controllingmethod is simple; the edge position of a glass product is detected by four edge detection sensors, so that the precision of glass edge grinding is high; the edges of the glass products are carried out grinding at the same time by four stepping motors and four mobile platforms, so that the efficiency of grinding is high; the glass product is fixed by a vacuum sucker, the glass is not prone to breaking, and the automatic feeding controlling method for the glass edge grinding machine is in favor for being generalized and popularized.

The invention discloses a homonymy point gross error elimination method matched with ortho-image mosaic edge joining. The method comprises the following steps: designating a mosaic edge correction range in a mosaic edge region of a to-be-mosaicked ortho-image: matching homonymy points in the mosaic edge correction range; computing the residual error of the completely matched homonymy point pair; setting a gross error elimination rule so as to perform the gross error point elimination on the acquired homonymy point pair according to a gross error elimination rule. By use of the homonymy point gross error elimination method disclosed by the invention, the aims of eliminating the homonymy point and acquiring a precise matching point subset are achieved in a certain range distancing from a mosaic line; and then the precisely matched points are used for computing a conversion model parameter, thereby realizing the correct mosaicking of the image. The edge joining of two adjacent images is effectively improved, and the entire geometric accuracy of the large region mosaic image can be guaranteed at the same time.

The invention relates to the field of methods for automatically measuring the volume of an object, and particularly discloses an object size high-precision measurement method based on a depth camera,which comprises the following steps of: 1) acquiring a depth image of a measurement background in advance, and calculating to obtain a reference plane; 2) acquiring a depth image of the measured object, and positioning the depth image of the measured object to the position of the measured object in the image; 3) removing redundant transition data at the edge to further accurately obtain the position and the size of the measured object in the depth image; 4) projecting to the reference plane to obtain a projection image; 5) performing hole filling on the projection image; and 6) calculating toobtain the average height and the maximum height of the measured object, and converting to obtain the actual size of the measured object. According to the method, the volume of the object measured bythe depth map obtained by the depth camera under the semi-outdoor condition can obtain high-stability measurement precision, and meanwhile, measurement of the irregular object with the fluctuant surface is also supported.

The invention discloses an automatic edge grinding device for wood plate materials, and belongs to the technical field of wood board processing. The automatic edge grinding device specifically comprises a base, a conveying belt and clamping assemblies used for clamping a to-be-ground plate material; the conveying belt is mounted on the base through supporting columns and is driven by a motor; anda coating grinding tool is arranged on the outer side of the conveying belt, a sliding groove is formed in the middle of the top of the base, and the clamping assemblies are arranged in the sliding groove. According to the automatic edge grinding device, through fixed plates and the conveying belt, the to-be-ground plate material is bidirectionally fixed during grinding, the to-be-ground plate material is effectively prevented from jumping during grinding, the working efficiency is high, and the edge grinding effect is good.

The invention provides a printed circuit board edge grinding machine. The printed circuit board edge grinding machine comprises an operating panel, two fixing devices and grinding devices, wherein theoperating panel is of a rectangular structure; the two fixing devices are symmetrically and oppositely fixed to the two side edges of the operating panel, each fixing device comprises a fixing bracket and two or more fixing rods, one ends of the fixing rods are connected with the side edges of the operating panel, the other ends of the fixing rods are connected with the fixing brackets, and a printed circuit board can be clamped and fixed through the two oppositely-arranged fixing brackets; and the grinding devices are symmetrically and oppositely arranged on the another two side edges of theoperating panel and comprise connecting rods and grinding mechanisms, the connecting rods are connected with the side edges of the operating panel, the other ends of the connecting rods are connectedwith the grinding mechanisms, the connecting rods are each of a telescopic structure, and the grinding mechanisms can extend to the edge of the printed circuit board from the side edges of the operating panel through the connecting rods for grinding. According to the printed circuit board edge grinding machine, the edge grinding precision of the printed circuit board can be improved, the grindingefficiency of the printed circuit board is improved, and the machining progress is accelerated.

In an image processing method that converts image data into output data by performing tone mapping, an edge of an image represented by the image data is determined, a first tone mapping operation is performed on first image data included in the image data, where the first image data represent a first portion of the image not including the edge, whether a gray level of second image data is within a predetermined gray range is determined, where the second image data represent a second portion of the image including the edge, a second tone mapping operation is performed on the second image data when the gray level of the second image data is within the gray range, and the first tone mapping operation is performed on the second image data when the gray level of the second image data is not within the gray range.