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

An opening portion structure in which an opening portion is provided between edge portions of an outer panel and an inner panel, and inner surfaces of the edge portions respectively of the outer panel and the inner panel are reinforced by an outer reinforcement and an inner reinforcement, wherein a terminal end portion of the outer reinforcement in a longitudinal direction is coupled to the inner panel at a position between an end wall of the inner panel and a terminal end portion of the inner reinforcement in the longitudinal direction.

An opening portion structure in which an opening portion is provided between edge portions of an outer panel and an inner panel, and inner surfaces of the edge portions respectively of the outer panel and the inner panel are reinforced by an outer reinforcement and an inner reinforcement, wherein a terminal end portion of the outer reinforcement in a longitudinal direction is coupled to the inner panel at a position between an end wall of the inner panel and a terminal end portion of the inner reinforcement in the longitudinal direction.

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.

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 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 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 relates to an overlapping area correction method suitable for multiple remote sensing images of a large region. The method comprises the steps of (1) performing automatic adjacent area homonymy point matching on all images to obtain homonymy points; (2) constructing a triangular net by utilizing existing homonymy points; (3) for each homonymy point, calculating coordinates of a homonymy point reference object space; (4) calculating an affine transformation parameter of each image; (5) for each homonymy point, according to image space coordinates and corresponding affine transformation parameters on different images, resolving new observation object space coordinates of the homonymy point on the corresponding image; (6) repeating the steps (3) to (5) until the coordinate change of the reference object space is smaller than a certain threshold or the reference object space is no longer changed; and (7) correcting the corresponding image by utilizing the affine transformation parameter iterated last time. According to the method provided by the invention, the multiple images of the large region can be subjected to overlapping area correction at the same time; the correction precision is higher; and the problems of deformation unevenness and image over-twisting in a conventional correction method are avoided.

The invention discloses a preparation method of a graphical metal layer on a ceramic surface. The preparation method comprises the following steps: sequentially carrying out pre-cleaning, coarsening, post-cleaning, drying, trigger printing, graphical curing, constrained chemical deposition of a metal layer and the like on the surface of a ceramic substrate; and carrying out constrained chemical deposition of conductive graphics of copper, silver, nickel and alloys thereof on the ceramic surface. The graphical metal layer on the ceramic surface prepared by the preparation method disclosed by the invention is uniform and compact, good in adhesive force and easy to weld, and the electrical properties can satisfy the industrial requirements, and meanwhile, the preparation method disclosed by the invention has the characteristics of simple process, low cost, convenience in industrialized production and the like.

The invention belongs to the technical field of 3D printing, and provides a DLP UV-curing rapid molding edge processing method and device. The method comprises the steps of slicing and forming 3D models; observing the molding phenomenon, and obtaining the imaging plane edge halo size and the forming model edge curing condition; obtaining the model contour line, and adjusting the width of the modelcontour line according to the definite value to obtain contour edge lines with the width; conducting normal drawing and filling in a closed area defined by the contour edge lines with the width; andconducting drawing and filling in the contour edge lines with the width according to preset target grayscale to form a slice map for molding. According to the DLP UV-curing rapid molding edge processing method and device provided by the invention, curing caused by halo can be avoided effectively, and the curing rapid-molding edge precision is improved; and the molding speed is increased, and the grinding procedure is reduced.