47results about How to "Improve processing quality stability" patented technology

The invention discloses a precision machining method for a deep and narrow groove of a flame tube thin-walled part. The precision machining method comprises the following steps that a, a matched rough machining grooving cutter, a matched finish machining grooving cutter and matched machining parameters are selected according to materials of the part and design dimensions of the length, the width and the depth of the to-be-machined deep and narrow groove in the part; b, an initial position of the to-be-machined deep and narrow groove is cut by a first depth, continuous feeding is conducted at an allowable maximum feeding speed, and an allowance is reserved; c, downward machining is continued without retracting, a second depth is reached through cutting, continuous feeding is continuously conducted at a medium feeding speed, and an allowance is reserved; d, downward machining is continued without retracting, a third depth is reached through cutting, machining is continuously conducted at a minimum feeding speed, and an allowance is reserved; and e, the finish machining grooving cutter is a profiling arc groove cutter and is used for completing finish machining to meet the final dimensional requirements.

The invention discloses a machining method of a spatial angle small hole of an aviation component. The machining method adopts a five-axis high-speed electric spark machine tool for machining, adoptsa coordinate projection method for coordinate conversion of the spatial angle small hole size in the machining process, converts the coordinate conversion into a machining instruction that is operableon the five-axis high-speed electric spark machine tool, and finishes machining of the final size and angle. According to the machining method of a spatial angle small hole of an aviation component,coordinate projection and single-dimension coordinate conversion are achieved through a method for making plane and straight line related to the spatial angle small hole axis in a rectangular coordinate system, and the method calculates included angles or distances between planes or between a line and a plane or between lines; the calculation method is simple, and only rotation of a working turntable and translation in X and Y directions need to be matched in actual operation; complex calculation processes and machining processes are avoided; machining quality stability is obviously improved,and machining time is effectively shortened; and machining efficiency of the spatial angle small hole of the aviation component is improved.

The invention relates to a drum wheel machine tool, which comprises a rack, a numerical control machining unit, a numerical control sliding table, a drum wheel, hydraulic clamps, a hydraulic clamping distributor, an indexing driving mechanism, a positioning mechanism and a drum wheel clamping mechanism; the shaft end of a drum wheel shaft is provided with the hydraulic clamping distributor; an oil path penetrates through the drum wheel shaft and the drum wheel to supply oil to the hydraulic clamps; the indexing driving mechanism drives the drum wheel to rotate to each station; the positioning mechanism comprises a positioning oil cylinder mounted on the rack and a positioning hole in the side surface of the drum wheel; a piston rod of the positioning oil cylinder extends to be inserted into the positioning hole in the side surface of the drum wheel and position the drum wheel; the drum wheel clamping mechanism pushes the drum wheel shaft to move along the axial direction, so the drum wheel is abutted against on the rack, and the drum wheel is clamped; the numerical control sliding table is mounted on the rack; the numerical control machining unit is mounted on the numerical control sliding table for feeding. The drum wheel machine tool has the beneficial effects that the efficiency is increased by 4-5 times, the machining quality stability of a machined part is obviously improved, the energy consumption is reduced by a half, and the occupation area is reduced by more than 5 times.