HRB bearing | turning axial workpiece size accuracy can not meet the requirements, when you know the reason and solution?

There is rotational, have HRB bearing ( ) 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. Axial workpiece in cutting process, will encounter problems such as accuracy and surface roughness can not meet the requirements. According to the specific process of the turning, is analyzed. A, size accuracy can not meet the requirements of reason and its solution 1. Due to rough (careless) operator, the measurement errors, or dial the wrong and the improper use, therefore, when measuring, be careful, it is very important to the proper use of dial, drag on the plate handle dial, various types of lathe dial is not the same, each a small lattice dial can use the following formula: scale turn one tool moving distance = dragging plate screw distance/dial engraved line number (a total mm) After know each grid scale value, when use notice because there are clearance between screw and nut, although sometimes dial rotation, but turning tool will not necessarily move, such as clearance are turning to move after a turn. Therefore, when using, if the number scale around too much, will never allow back only a few, but turn back to a later, again on the scale. 2. Measuring tool itself have error or there are using measuring tool when used before, shall carefully check and adjustment, is used to. 3. Due to the change of temperature, the size change in cutting, chip deformation occurs, scraps of various molecules move from each other, and when they move in friction and produce a large amount of heat. Front friction, in addition, because of the chip and tool behind the cutting tool and the workpiece surface friction heat, the heat will directly affect the cutting tool and workpiece. Of course, is the highest heat chip ( About 75% or so) , followed by turning tool ( Accounts for about 20%) And artifacts ( Accounts for about 4%, and 1% in the air) 。 When the workpiece heated diameter increases ( About 0. 01 ~ 0. 5 mm, cast iron material than steel changed) , diameter contraction after cooling, cause the waste. So can't go in the workpiece at a high temperature measurement. If must measurement, pouring enough when turning cutting fluid, don't make the workpiece temperature; Second car with coarse extract method separately. 4. Blank over all not enough blank bending without straightening itself, as well as the center hole to causes such as partial. If you are looking for the above jiaxing bearing group co. , LTD. The author introduces the bearing inspection and replacement of interest or have any questions, please click on the website on the right side of the online customer service or call:, you close the way of jiaxing bearing purchasing advisors. - - - - - - Editor: jiaxing bearing sourcing consultant LTD. All rights reserved, The company) Reprint please indicate the source