30results about How to "Accurate measurement and positioning" patented technology

The invention relates to the technical field of precast column construction, in particular to a precast column assembly construction method. The invention fixedly locates pre-embedded reinforcing barthrough a shaping template with a locating hole, then the column is positioned by using the mortar retaining formwork and the column limiting plate, brackets and adjusting jacks installed on upright posts, The utility model can make the lifting survey and positioning of the upright column accurate, improve the installation efficiency, satisfy the subsequent assembling construction of the precast cover beam, greatly improve the installation efficiency of the upright column, ensure the construction quality, reduce the input of the labor force on the construction site, shorten the time of the on-site construction operation, and promote the on-site construction and production progress.

The present invention discloses a method for measuring and locating the tops of the virtual tetrahedron of the special-shaped component. In a special-shaped node three-dimensional body, four points which are not in a same surface are chosen to form a virtual tetrahedron. The three-dimensional coordinates of the four points are calculated and the corresponding marks of the four points are marked on the real object of the node. A random point is chosen as a main control point of the node and other points are taken as auxiliary control points. When the node is hanged to the station, firstly the three-dimensional coordinate of the main control point is monitored with an electronic total station at the position of the measuring point, and on the moulding bed of the node, the adjustment is executed by means of equipment to accurately control the plan position and scale height of the main control point. The planar and vertical three-dimensional rotation adjustments are executed while the node takes the main control point as a center until when the monitored reading number of the coordinate of other three auxiliary control points is fit with the calculated value. When the node is measured and is accurately mounted, the node is welded on the positioning device of the moulding bed for temporary fixing. The method of the invention has the advantages of simple principle, reliable method, convenient realization, high work efficiency and broad application sphere.

The invention is a noncontacting infrared temperature meter and the spacing control method. The thermometer includes infrared radiation sensor, spacing control device, processing unit and displaying device, the spacing control device mainly includes illuminant mechanism and observing mechanism, they are connected through circuit or wire. The method is: the beam transmitted by the illuminant mechanism and the observing path of the observing mechanism are crossed in the special region of the preset distance, only when the measured target is in the special region, the light spot or image projected to the measured object can be observed through the observation mechanism.

The invention provides a measuring and calibrating device for laser processing focal length and incidence angles. The device comprises a telescopic measuring ruler, a connecting rod piece and an upper measuring ruler. The telescopic measuring ruler comprises a fixed part and a movable ruler part. A laser beam incidence perpendicularity calibrating hole penetrating the movable ruler part is formed in the extension end of the movable ruler part, and concentric annular targets are arranged outside the upper hole surface and the lower hole surface of the laser beam incidence perpendicularity calibrating hole. An alignment part is arranged on the upper measuring ruler and used for aligning at a reference marked line on a laser processing head. The connecting rod piece is hinged to the fixed part of the telescopic measuring ruler and the upper measuring ruler and used for connecting the telescopic measuring ruler with the upper measuring ruler, then the measuring directions of the telescopic measuring ruler and the upper measuring ruler are parallel, and the distance between the telescopic measuring ruler and the upper measuring ruler can be adjusted and measured. Multiple measuring and calibrating manners are organically integrated, precise measuring and positioning of the laser processing focal length and incidence angles are achieved, the laser processing focal length and incidence angles are tightly combined together, measuring, adjusting and calibrating of the laser processing focal length are very convenient, and operation is easy.

The invention particularly relates to an erecting method of fair-faced concrete sheet wall arc formwork. The erecting method is characterized by comprising the following steps that 1, segmenting is conducted according to a drawing; 2, a full-automatic carving machine is used for machining and manufacturing a back ridge of a special-shaped formwork; 3 the arc-shaped back ridges are assembled; 4, a bottom formwork is laid along the back edge of a beam bottom arc section formwork through a nail gun; and 5, a main keel is placed in a disc buckle frame tray to be supported, the top of a steel channel makes contact with the protruding portion of the arc-shaped back ridge, force on the upper portion of the back ridge is transmitted to a supporting frame, meanwhile, the two sides of a column are locked through high-strength national standard bolts with the diameter being 16 mm, and inclined supporting rod pieces on the left side and the right side of a disc buckle frame are added. According to the erecting method, construction of the arc-shaped bottom of the fair-faced concrete sheet wall can be conveniently carried out, compared with other measures, the erecting method is simple, convenient and economical, the full-automatic formwork carving machine can better find out the elevation of a arc-shaped ground beam, and the erecting method is more accurate than common measurement and positioning.

The invention discloses an automatic positioning device for assisting installation of an air conditioner indoor unit, and relates to the technical field of air conditioner indoor unit installation. The automatic positioning device comprises a base, a lifting machine, a lifting platform, a laser range finder, an electric push rod, a remote controller and a controller arranged on the device. A second steering motor is arranged at the bottom of the base, the second steering motor is connected with a first bevel gear, and the first bevel gear is meshed with a second bevel gear; drivers are arranged at symmetrical positions on two sides of the bottom of the second bevel gear; a telescopic end of the electric push rod is connected with the drivers on the two sides through an arranged linkage mechanism; the controller is electrically connected with the lifting machine, a first steering motor, the second steering motor and the like; and the remote controller is in wireless data connection withthe controller. The automatic positioning device is compact in structure and has the advantages of being convenient to use and operate, capable of saving time and labor, accurate in measurement and positioning, convenient to install and capable of achieving intelligent and automatic positioning.

The invention relates to the field of automobile collision tests, and aims to provide a multifunctional automobile seat collision testing device which has advantages of high measuring and fixing accuracy and relatively high efficiency. The multifunctional automobile seat collision testing device comprises a base board, and two measuring vertical columns of which the lower ends are fixedly connected with the base board. The multifunctional automobile seat collision testing device further comprises the components of a blocking column of which two opposite ends are fixedly connected with the inside edges of the two measuring vertical columns respectively, a main board of which the width matches a distance between the inside edges of the two measuring vertical columns, a measuring block whichis fixedly connected with the upper end of the main board, and two blocks which are provided with snapping troughs with widths that match the diameter of the blocking column and are fixedly connectedwith the front end surface of the main board. A plugging fixing mechanism is arranged between the lower end of the main board and the base board. The multifunctional automobile seat collision testingdevice has advantages of high measuring and fixing accuracy, and relatively high efficiency.

The invention discloses a three-dimensional curved surface form construction method of an indoor multi-curvature modeling building. The three-dimensional curved surface form construction method of the indoor multi-curvature modeling building can ensure that the indoor complex modeling building is accurately measured and positioned, measurement data is easy to obtain, measurement period is short, and measurement is accurate and controllable by constructing a three-dimensional space dot matrix measurement method based on the indoor complex modeling building, and the construction period occupied by survey lofting is greatly shortened, and the measurement accuracy is greatly improved. According to the three-dimensional curved surface form construction method of the indoor multi-curvature modeling building, the problems that the construction period is prolonged and construction cost is increased due to the fact that a large amount of high-density and high-precision measurement and positioning are needed and measurement work amount is large when a traditional measurement and positioning means is adopted for measurement and positioning of the indoor complex modeling building are solved.