JPS63166354U - - Google Patents

Description

[Brief explanation of the drawing]

Fig. 1 is a perspective view showing an electromagnetic device according to this invention, Fig. 2 is a partial sectional view showing the magnetic pole of the prior art, Fig. 3 is a partial sectional view showing the defects of the prior art shown in Fig. 2, and Fig. 4. 5 is a partial sectional view showing the magnetic pole according to this invention and shows magnetic flux concentration, FIG. 5 is a partial sectional view showing the superiority of the magnetic pole shown in FIG. 4, and FIG. A shows the case where the magnetic pole shown in Fig. 4 is used, B shows the case where the magnetic pole shown in Fig. 2 is used, and Part 7
The figure is a graph showing the relationship between the machining amount and machining time for types A and B shown in Figure 6, D in Figure 8 shows the pre-machined surface, and E shows the finished surface of Type A in Figure 6. Fig. 6 shows a diagram showing the finished surface of type B, and Fig. 9 shows a magnetic pole according to this invention which gives good results when the workpiece is a magnetic workpiece, and shows magnetic flux concentration. Partial sectional view, 1st
Figure 0 is a partial sectional view showing the advantage of the magnetic pole shown in Figure 9, Figure 11 is a magnetic workpiece, and A shows the case where the magnetic pole shown in Figure 4 is used, and B is the case where the magnetic pole shown in Figure 2 is used. This shows the case where the magnetic pole shown in is used, and C is the 9th pole.
A partial cross-sectional view showing the case where the magnetic poles shown in the figure are used, Figure 12 is A, B and C shown in Figure 11.
13 is a graph showing the relationship between processing amount and processing time for each type; FIG. 13 is a partial side view taken along line A to A in FIG.
The figure is a sectional view taken along line B to B in Fig. 13, Fig. 15 is a sectional view taken along line C to C in Fig. 13, and Fig. 16 is a front view of the magnetic polishing apparatus. 17 is a side view showing a partial cross section of the rotating main shaft portion, FIG. 18 is a side view taken along line D to D in FIG. 16 and showing cooling water discharge to the electromagnetic device,
Fig. 19 is a sectional view showing the tail stock with an excitation section, Fig. 20 is a side view taken along the line E to E in Fig. 19, and Fig. 21 is a side view taken along the line F to F in Fig. 19. The taken plan view, FIG. 22, is a schematic diagram showing the operation of the magnetic polishing apparatus. 1... Workpiece, 10, 20, 31... Magnetic pole, 1
1... Concave portion, 12... Convex portion, 22, 32... Concave/convex portion, 23... Convex portion, 30... Electromagnetic device, 60...
Rotating main shaft section, 70...Tail stock with vibration section.

Claims (1)

[Scope of utility model registration request] an electromagnetic device that magnetically holds magnetic abrasive grains against the outer cylindrical surface by disposing a pair of magnetic poles on opposite sides of the outer cylindrical surface of the workpiece; The magnetic pole is attached to the end of a yoke that is slidably attached to the end face of a horizontally arranged yoke toward the workpiece, and the magnetic pole is attached to the end of the yoke so as to be slidable toward the workpiece. In an apparatus for magnetically polishing a circumferential cylindrical surface of a workpiece in which abrasive grains can abrade said circumferential cylindrical surface, a vibrator for applying vibrations to said workpiece is incorporated in the tail stock 70, said vibrator , a crank 74 that swings and rotates from the motor via a rotating disk 72 and a slider 73, and a ball screw 7 that converts the swing rotation of the crank into axial vibration.
5. An apparatus for magnetically polishing an outer cylindrical surface of a workpiece, comprising: