When honing 2~ 30mrrt NSK import bearing eyelet, the wheelhead body and the oilstone place become a body, makes to rise the core and the wheelhead body in the entire length is the surface contact, strengthens the rigidity.
1) single oilstone top horizontal jade piece wheelhead shown in Figure 10,116 the wheelhead, is suitable in processes the straight dimension request very to be high, the aperture is 2~ j530mm hole, the honing reason two guidance strip and a cutting oilstone composition.Two guidance strip asymmetrical distribution, the width big guidance strip uses for the radial force and the tangential force which withstands the oilstone to produce with joint forces (with joint forces through among its area of bearing), prevents the top horizontal jade piece wheelhead distortion.The narrow guidance strip assistance supporting function, causes the top horizontal jade piece wheelhead and the hole contact condition is stable, increases the processing precision.The guidance strip material uses the hard alloy or the artificial diamond.According to the aperture size, the guidance strip may make the mosaic or with the galvanizing process the diamond micro sherardizing on the wheelhead body surface surface, also may cover the coarse grain diamond, then rubs obtusely with the cubic boron nitride grinding wheel or the oilstone it, causes it to lose the cutting power.
2) starts out from opposite directions folio the axle bush type honing reason two semicircle axle bush constitution, is suitable in processes the straight dimension request to be high, to have the surface of discontinuity hole.The top horizontal jade piece wheelhead radial direction expanding to feed is through wedge-shaped rises the core function in two semicircle axle bush incline, retracts is depends on the axial both sides two O shape spring coil tension.Its available ordinary grinding compound oilstone cementation in wheelhead surface, also the available several diamond oilstone welds with the low melting point welding rod in the wheelhead surface.The oilstone length oilstone length two times which selects for the general top horizontal jade piece wheelhead.This wheelhead is advantageous for on the grinder resharpens its cutting surface, the NSK import bearing processing precision is stable, cutting efficiency compared to single oilstone top horizontal jade piece wheelhead high about 10%, the service life is long.
3) may adjust the overall top horizontal jade piece wheelhead processes the high accuracy in the mass productions with this kind of top horizontal jade piece wheelhead the hole.The hole shape error may reach below 0.5gm, the size error may control in 2~3pm, surface roughness R.Reaches 0.2pm. The wheelhead body is an overall sleeve, the symmetrically aligned operate two axial troughs. Plates the 0.3~0.5mm thickness on its surface the diamond abrasive, the wheelhead in vivo hole is 1:50 awl hole.Rises the core using the awl mosquito larvae L in cone-shape to cause the entire wheelhead body to have the elastic deformation to adjust the predetermined size.Has not risen in the import bearing processing process shrinks the movement, therefore may regard as it one kind of formed tool. Uses this kind of top horizontal jade piece wheelhead the engine bed, generally for vertical multiple spindle multi-location oilstone grinder.Between the top horizontal jade piece wheelhead and the main axle is the rigid joint, the fixture designs the fluctuation form. The top horizontal jade piece wheelhead movement and the general honing movement are different, on the one hand the wheelhead makes the rotary motion, on the one hand the radial direction fast close work piece, the axial work feed (feed rate is 1~1.5mmin), returns fast.An operating cycle then completes a processing.
The pocket top horizontal jade piece wheelhead, mainly uses in the big aperture the honing processing, for raised concentric pocket top horizontal jade piece wheelhead, raised link outer diameter close honing mosquito larvae L diameter.Supports the oilstone place and the withstanding honing cutting force, has the good rigidity.In the oilstone place lateral pin 3 clings in the raised link the end surface, and withstands when the honing for the oilstone axial localization the axial force, the migration rises awl 5 to cause the oilstone place 2 to stretch out, 1 retracts the oilstone taking advantage of the spring coil.
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