The design of the bearing grinding machine electromagnetic centerless jig

( 1) Diagram of the design. In a coil design, to ensure that the necessary magnetic: second, we must make a coil shape size reasonable, specific have the following factors need to (1) wire coil of electromagnetic centerless jig, usually adopt high strength of enameled wire winding. About 200 mm of workpieces, for example, generally choose 0. 3 to 0. 77 mm of fine copper wire. According to the current strength and the diameter of wire is directly proportional to square of the closed system, under the condition of current strength must be, choose a smaller diameter of wire around the pitch of can be more, can effectively improve the ansun number of lines, but also reduce the size of our coil 2 saturated electric induction intensity refers to the core after induction, released by the magnetizing force biggest, F2 = M (3) the appearance of coil size depends on the diameter of wire, the winding number and jig feet す as a whole. Coil diameter and width ratio of the appropriate USES the proportion of 4:1, to shorten the axial dimensions of fixture, increase its degree. (4) after the coil winding, should be insulated protective treatment. Generally use insulation tape or encapsulation coil ( 2) Iron openwork design core aim is to make the design of the coil after the electricity produced under the condition of the external magnetic field, form a with the additional magnetic field in the direction of the magnetic field, in order to increase the intensity of electromagnetic induction of magnets, usually using 20 steel ( 3) The design of the magnetic poles is connected to the core and the workpiece transition, is of a different size of workpiece matching with replacement parts, it plays a guiding and magnetic bearing the workpiece end face, pole into a beaker and in contact with the workpiece side on the circumference of a circle for 3 ~ 4 a gap for the cooling fluid and abrasive dust from here go. The magnetic poles are usually made by low carbon steel