About the bearing bearing hole of jiaxing repair processing way

There is rotational, have HRB bearing ( ) About the bearing bearing hole of jiaxing repair processing way of jiaxing bearing group sales co. , LTD. ( The company) Is bearing group co. , LTD. Established in jiaxing spot sales window, specializing in HRB brand bearings, facing the whole country, the existing stock 50 million yuan, covers the whole bearing, have very strong spot supply, is the group's retail sales center. 1, with the benchmark of main bearing hole repair processing way of benchmark spindle hole repair processing refers to the bearing cover damage processing, processing after the bearing cover, bearing damage bead welding processing, after this kind of situation usually half the hole need to be taken to ensure a hole dimension, form and position tolerances. 4400 horsepower organism in cover for processing as an example. Artifact correction, clamping, when you get on with the processing of spindle hole 2 # attachment to head up a shaft correction gear main shaft hole (7 Correction parts on the spindle hole don't need inner hole) , first determine the workpiece zero of each axis, Y, Z, W and Z axis ( Note can't keep the attachment around 180 & deg; To look for is a main shaft hole center) Looking for from the first and second gear housing, open files are first gear center, correction to the seventh gear main shaft hole center overlapping range 0. 02 mm within, so that the workpiece axis is essentially coincident with the x axis machine tool, and then determine the workpiece x zero can start rough boring holes need to be repaired. After the rough rough boring boring to 262 mm, fine boring cutter. Fine boring cutter diameter to reduce 1 mm to 264 mm one knife, exit, measurement ( Around the entrance to the vertical position and horizontal position take three measurements, horizontal two points to the left and right sides is symmetrical, as far as possible close to the bearing cover joint surface. ） Compare the three dimensions of the workpiece zero hole center and practice in processing the workpiece zero point difference after improvement. Set the cutter diameter to 264. 5 mm, then the boring, since the end of the orifice size of imports and exports, such as the size is not the same value at six, that at this time of the main shaft hole center and the cutter center of rotation is not coincidence, by changing the workpiece zero or adjust the workpiece clamping position and then the boring cutter diameter will be dispatched to 264. 6 mm, then the boring, such as the six dimensions in the same value, then the spindle hole center and the cutting tool center of rotation is overlap, can start to fine boring, the tool set to 265. Into boring 00 mm, 3 mm to 5 mm, exit, measurement, to note here is that if the blade not encountered or just met on the bearing seat, and pore size have not reached expected value, should raise (the Z axis to Assuming that pore size is 265 now. 00 mm, processing - 265. 3 mm, then raise 0 Z axis. 015 mm, the diameter of the cutting tool set to 265. 3 mm, machining the hole, so it can ensure the main shaft hole in cover processing technical requirements) Similarly, can be used for machining the bearing cover, repair welding repair spindle hole of the bearing. If a body has multiple spindle hole, according to the operation method of processing one by one. 2, a benchmark of main bearing hole repair machining way when there are one or more holes on the body need the whole spindle hole processing, but also to ensure the machining spindle hole and don't need after the alignment of the main shaft hole, should first will furthest distance apart of two gears does not require processing spindle hole correction to the same axis, and then rough boring machined hole, aperture to 264 mm, good boring cutter diameter will be dispatched to after 264. 8 mm, moved with adjacent don't need the hole machining of main shaft hole, point to enter from the orifice 1 mm ~ 2 mm, with 0. 1 mm feeler, check the pin and the clearance of hole wall, when the direction of the up and down or so four interstitial phase exit at the same time, the tool will be dispatched to the same diameter and the hole size, on the inner wall of the hole with chalk, try the boring, Try to cut the distance in 1 mm ~ 2 mm range, so as not to damage the hole size) Cutter cut marks on the chalk marks out observation, it is also possible within the workpiece hole wall will have cut marks, such as uneven cut marks, fine-tuning the workpiece zero point to evenly cut marks determine the workpiece zero point, can be required for machining the hole, at the same time ensure that the location accuracy of the hole. This operation requires repeated positioning accuracy of machine tools in the artifact to allow the precision of the range. 3, the whole line of bearing hole repair processing way in 16 v280 spindle hole repair body, for example. Generally the whole row holes machined body, in advance by plane of the grinding of bearing cover, injunctions to narrow down the shaft hole vertical diameter size of the way to create boring machining allowance. Key issue is to look for is the first, gear box two and a half of 9 hole alignment. After the concrete operation, the artifacts in 2 # accessory milling head is looking for a, nine straight line bearing, determine the workpiece zero point, then cutting tools to 244 mm in diameter, fine boring ninth, good boring jumped directly after the first leg spindle hole boring, after the first gear processing with two gears inside diameter micrometer measuring a and 9 main shaft hole the size of the vertical direction and horizontal direction, it is concluded that the body and the machine tool spindle axis error of the X axis direction, by adjusting the two parallel to the axis of the body of the clamping position method, try cutting and repeated several times, until the actual processed workpiece axis and the direction of X axis parallel machine tool can start fine boring spindle hole. If you are more interested in jiaxing bearing group co. , LTD. 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