One is the use of the Precision Honing feed to a group of honing head body fitted in the stone, a stone exert radial pressure on the workpiece, and the rotary motion and reciprocating motion precision machining method for processing. Honing stone mounted in a special honing head, driven by the honing honing machine spindle for rotation and reciprocating motion, or a rotating workpiece, honing head is reciprocated by the expansion and contraction mechanism which extends the stone, the bore wall pressure radially expanded for movement, to achieve honing. In order to improve the quality of honing, honing head and spindle are generally floating connection, or rigid connection equipped with a floating jig to reduce honing machine spindle center to be machined hole concentricity error on honing quality. Not only can be used to bore honing precision machining, and can be used for cylindrical, flat and curved precision machining. In each reciprocating stroke honing the number of revolutions is a non-integer, so it is the start of each stroke are staggered at an angle with the last, on which the stone grit in the processing of each cutting surface trajectory will not repeat, thus forming a uniform cross honing. Since having a length Whetstone, Whetstone cutting path of the previous turn in the axial direction there is a duplication, so to ensure the connection between the front and rear cutting path smoother. When the honing head reciprocates in the bore, the same stone as the deck surface of the fight in the processing of high projecting point, under the pressure of the honing, the high point slashing. While the high point on the machined surface passivation also impact on the abrasive, so broken or fall off, and re-exposed Fengrui abrasive. So honing process is also Whetstone constant interplay with the machined surface grinding and finishing, so that the original marks and Residual stress and deformation layer is rubbed off, hole shape error is corrected. Whetstone accordingly be worn. Converted by a point contact when the two contact surfaces, the pressure per unit area on the honing reduced accordingly, the chip thinning, ravioli of stone begins to be blocked, the cutting action and disappear gradually decreased, the finished surface roughness decreased, honing process into the polishing process to achieve the required size, and finally Whetstone returned.
Motivation factory cylinder honing machine is imported automatic processing equipment, the Precision Honing cylinder processing undertaken to ensure the important parts of the cylinder bore and the crankshaft hole machining dimensions of the final task is to block line of key equipment. As the particularity of processing methods and the diversity of technological requirements, machining precision and stability to be higher, master honing machining dimension control method for achieving stability of the engine performance is very important. This paper analyzes the impact of the factors honing machining dimensions, and proposed solutions. The status of a honing machine processing. Honing machines and machining processes described Divided into 12 stations, access to materials from the station, model identification station, station bore roughing, finishing station, crankshaft hole processing station, MARPOSS testing station, turning station and several empty stations components. Owned machinery and electronics manufacturing stations rose up knife blade system and hydraulic system that can process 1.0 ~ 1.2L cylinder models. Workpiece through a step-lift transport conveyor system for processing, the lift conveyor system through the servo stepper motor drive to achieve precise control. 2 honing machine processing problems 1) fine honing honing machine tool station after processing the first pieces of roughness unqualified, not completely cover the marks left by coarse honing and deep trench (2) Machining appear cylinder bore good roundness and cylindricity, tolerance and on the side there Poor (3) by processing the semi-blind bore-hole, the bottom of the cylinder bore diameter is small, the need to increase the delay of growth in the cylinder bottom of the hole at the bottom of the cylinder bore machining time to repair, will cause the cylinder bore marks appear circulator risk (4) honing diameter is too large or too small, the impact beats and rework caused by waste. Analysis of factors affecting the processing size of honing to get a good effect, in addition to the use of advanced grinding honing tool and the correct selection of material and size, the honing process parameters used when processing quality has a great impact.