32results about How to "Reduce repetitive positioning errors" patented technology

The invention proposes an installation and adjustment system and method for a multi-layer nested X-ray grazing incidence optical lens, and the system comprises a suspension subsystem, a measurement subsystem, a displacement subsystem, a pre-installation supporting device, an optical supporting platform, and a focal plane receiving screen. The method comprises seven steps: preparation, suspension, pre-installation, alignment, measurement, binding, and supporting structure installation. The system and method can greatly improve the installation and adjustment precision, speed and yield of the multi-layer nested X-ray grazing incidence optical lens, achieve no-stress installation and adjustment, improve the optical performance, are easy to implement, is high in universality, is high in installation and adjustment precision, and is high in installation and adjustment efficiency.

The invention discloses a method and device for achieving full-profile grinding of blades with tenons through a cylindrical coordinate three-axis linkage machine tool. The device is characterized in that the blades are mounted on a rotating shaft of a numerical control machine tool in a manner that the tenons are arranged upwards, and the three-axis linkage machine tool is formed by other two linear shafts of the numerical control machine tool and the rotating shaft; the three-axis linkage machine tool is used for driving a disc grinding wheel to carry out full-profile grinding machining on the blades; a rotating shaft of the grinding wheel is not parallel to or perpendicular to a rotating working table of the machine tool or the axis of the rotating shaft, the phenomenon that the length of the grinding wheel is shortened is avoided, and the long blades are machined; according to the method, only through three motion axes, the tenons and profiles of the blades can be comprehensively machined; the machine tool manufactured through the method has the coat far below a five-axis linkage numerical control machine tool, and a square matrix structure is formed through a plurality of spindles and the rotating shaft, so that multiple blade parts can be machined on the same machine tool, and the production efficiency of the machine tool can be obviously improved.

The invention discloses a diameter measuring tool of an inner spherical section circle and a measuring method. The measuring tool comprises a base, a first movable measurement unit, a first data reading device and a fixed measurement unit, wherein the fixed measurement unit comprises two contoured fixed bulbs; the two fixed bulbs are fixedly arranged on the base; a movement center of the first movable measurement unit and the two fixed bulbs form an isosceles triangle on the same plane; one end of a first movable measurement unit is connected with a second movable measurement unit through a spring; the other end of the first movable measurement unit contacts a reading meter measuring head of the first data reading device; the second data reading device stops at one end of the second movable measurement unit; and the first movable measurement unit and the second movable measurement unit are arranged on the base and can carry out axial slot clearance sliding along the axis on which a connecting line of the second movable measurement unit and the first movable measurement unit is. The diameter measuring tool can meet detection of the diameter of the inner spherical section circle with fixed distance; and the measuring method is reliable and suitable for field and volume production.

The invention discloses a screen printing machine allowing a substrate to be located conveniently. The screen printing machine comprises a printing table, an air sucking fan and a screen printing plate device groove for loading a screen printing plate. The screen printing machine is characterized in that a right-angle locating device is arranged on the printing table. The screen printing machine aims at the defects that an original printing machine is inaccurate in color register locating and large in error, and the right-angle locating device is additionally arranged on the printing table to meet the demands of the substrate for left and right locating. The addition of the right-angle locating device seems simple while the error of the repeated locating of the substrate is greatly lowered, working efficiency is also improved, and the yield of products is further improved and is up to 80 percent to 90 percent.

The invention relates to the field of printing processes, in particular to semi-transparent panel production equipment. The semi-transparent panel production equipment comprises a rack and a conveyingbelt horizontally arranged on the rack, a feeding roller is rotatably connected to one end of the rack in the length direction, a conveying roller is rotatably connected to the end, away from the feeding roller, of the rack, and a clamping roller is rotatably connected to the rack; the axis of the clamping roller is parallel to the axis of the conveying roller; an installation frame is arranged on one side of the rack in the width direction, a first printing assembly is arranged at the end, close to the feeding roller, of the installation frame, a second printing assembly is arranged at the end, close to the conveying roller, of the installation frame, and a drying assembly is arranged between the first printing assembly and the second printing assembly and arranged on the rack. The semi-transparent panel production equipment has the advantages that repeated positioning errors are reduced, and then the quality of a semi-transparent panel is improved.

The invention provides an X-ray pulsar navigation sensor online adjusting device and method. the device comprises an X-ray pulsar navigation sensor, a collimator, an optical aligning mechanism, a charge coupling probe, a focal plane receiving screen, a two-axis rotating turntable, a sensor support and a computer. The method includes: preparing, adjusting an optical lens, mounting a preamplifier component, measuring light spots, adjusting the preamplifier component and fastening the preamplifier component. By the device and the method, adjusting accuracy, adjusting speed and adjusting yield ofthe X-ray pulsar navigation sensor can be improved, and performance of the X-ray pulsar navigation sensor can be improved; the device has the advantages of being easy to realize and high in universality, adjusting accuracy and adjusting efficiency.

The invention discloses a processing method of an input shaft of an integral high-precision hollow speed reducer. The processing method includes the steps of forging a blank of the input shaft, processing an inner bore of the blank of the input shaft, processing a first positioning plane and a second positioning plane of the blank of the input shaft, processing a positioning pin hole in the blankof the input shaft, clamping and assembling the blank of the input shaft by one step, and finishing a first outer race, a second outer race and a third outer race of the input shaft respectively. Without weakening various functions of the speed reducer, the processing method, aiming to improve service life of the input shaft, reduces error accumulation during assembling by reducing number of parts, eliminates three bearing stations of the conventional input shaft, processes the inner races of bearings onto the input shaft directly to eliminate assembly error between the bearings and the bearing stations, and accordingly improves precision.

The present invention proposes a CNC precision thread rolling machine and a multi-head screw for automobiles. The invention includes a base and a workbench arranged on the base for processing the lead screw. The workbench is provided with a transmission unit for rolling the lead screw. The transmission unit is arranged on both sides of the lead screw, and a feed unit is arranged on one side of the workbench. The power output end of the feed unit is connected to one of the transmission units. The worktable is provided with a straight line for the feed unit to move linearly. Guide rail, the feed unit moves linearly on the linear guide rail, driving one of the transmission units to approach or move away from the other transmission unit. The present invention realizes three-axis interlocking and repeatable precise positioning, each axis performs differential compensation, small repeated positioning error, low product defect rate, simple control, and realizes the precision of multi-head screw processing.

The invention discloses a non-standard three-tool-bit shank structure for aluminum shell machine base machining. The structure comprises a three-tool-station shank and aluminum shell machining tool blades, wherein three blade installing grooves are milled in the head part of the three-tool-station shank, the shape of the blade installing grooves is matched with the shape of the corresponding aluminum shell machining tool blades, the aluminum shell machining tool blades are fixedly connected with the three-tool-station shank through blade installing screws, and the installing screws are screwedinto installing screw holes in the blade installing grooves. The structure has the advantages that the operation is simple, the problem that the aluminum shell machine base requires tool replacementfor multiple times during machining in the prior art is solved, one shank is provided with the three blades, the machining efficiency of the aluminum shell machine base is improved, and the problems that the aluminum shell machine base is long in production period, high in operating labor intensity, high in production cost and large in machining tool model specification are solved. All machining surfaces of the machine base are machined through the promoted process of one-time clamping and one-tool machining, so that the repeated positioning errors are reduced, the concentricity of machining of the machine base is improved, and the machining quality of the machine base is improved.