JPS5933482B2 - Machine Tools - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention provides spindles that are rotatable around a common rotational center line on a machine base and are slidably provided so as to face each other along the center line. A chuck for supporting the workpiece is provided on the outer periphery of the spindle, the chuck and the spindle are formed to be slidable relative to each other, and the tip of the spindle is provided inside and outside of the chuck. This invention relates to a machine tool that is designed to be accessible and accessible.

To explain the embodiment of the present invention shown in the drawings, the machine 1
A horizontal rail 2 is provided on the top, and slide tables 3, 3 are provided on the rail 2, and the slide tables 3, 3 can be moved toward and away from each other by hydraulic cylinders 4, 4. Both sliding tables 3, 3 are provided with spindles 5, 5 which are rotatable around a horizontal common rotation center line a. Rubber pressing tools 6, 6 facing each other are provided at the tips of these spindles 5, 5, and both spindles 5 are rotated by the rotation of rotation gears T, T provided at the bases of the spindles 5, 5.
, 5 can be rotated in the same direction and at the same speed, or rotated slowly at a constant angle (for example, 90 degrees) and stopped at that angular position by a brake (not shown).
A claw-shaped opening/closing chuck 8 for supporting the workpiece side surface is provided on the outer periphery of the spindle 5, with the center line a as a common center line, and can be rotated together with the spindle 5 around the center line a. The tip of the spindle 5 can then be slid into and out of the chuck 8. The chuck 8 can be opened and closed by sliding the outer cylinder 10 from side to side in FIG.
0 rotates together with the chuck 8 via the bearing 11 when the chuck 8 is compressed. The outer cylinder 10 is fitted into a sliding cylinder 12 via the bearing 11, and the cylinder 10 is connected to the sliding cylinder 12. In addition, the one indicated by 13 in the figure slides the slide table 3 along the rail 2 and moves the chuck 8 to the first position.
Cylinder for moving left and right, 1 in Figure 5
4 is the surface polishing machine, 15 is the prime mover, 16 is the lifting cylinder, IT is the cylinder for taking in and out, 18 is the internal polishing machine, 19 is the side grinder, 20 is the diamond cutter, 21 is the cassette tape head polisher In the present invention, a ferrite core (workpiece 22) for televisions and radios is held in a chuck 8 with open sides, and the inner surface is polished by an inner surface polisher 18 as shown in FIG. 6, and the left end is polished by an end surface polisher. The surface can be polished.

After moving the internal polishing machine 18 sideways from the working position, the cylinders 13 and 23 are operated to bring the chuck 8 and the other pressing tool 6 close together, and the workpiece 22 is moved between the pressing tool 6 and the chuck 8. After holding the workpiece 22 between the chuck 8 and pressing the pressing tool 6 in the chuck 8 against the workpiece 22 with the cylinder 9 and holding the workpiece 22 between the two pressing tools 6, 6, the chuck 8 is opened and the workpiece 22 is pressed as shown in FIG. After retreating toward the direction and separating it from the workpiece 22, it is exposed 5
Polish the polished sides using a side polisher. During the polishing described above, the spindles 5, 5 and the pressing tools 6, 6 are rotated in a constant direction around the center line a at the same speed. The workpiece 22 shown in FIG. 7 is a ferrite core for a coil, the workpiece 22 shown in FIG. 8 is a diamond, and the workpiece 22 shown in FIG. 1C9 is a head of a force setting tape. Further, in the present invention, the spindles 5, 5 are stopped, one side or both sides of the hexahedral workpiece 22 as shown in FIG. Grind the top and bottom sides as described above.
The hexahedral workpiece 22 can be polished by a polishing machine 14, and a cylinder and a pressing tool perpendicular to the center line a are advanced to clamp the upper and lower surfaces of the hexahedral workpiece 22 (not shown).
The end face of can be polished. Since the present invention is configured as described above, it is possible not only to process the entire side surface of the workpiece 222, but also to easily bring out the center of the workpiece without centering the workpiece. Not only can the side machining accuracy of the workpiece 22 be improved, but the
By grasping the work piece 22 with the chuck 8 that shares a common center line a, centering can be performed automatically, and the entire side surface of the work piece 22 of several shapes can be easily and accurately polished and ground. .

[Brief explanation of the drawing]

Fig. 1 is a side view showing the machine tool of the present invention, Fig. 2 is a partial vertical cross-sectional view thereof, Fig. 3 is a longitudinal cross-sectional view of a chuck for supporting a workpiece, and Fig. 4 is a plan view of the side surface in a polished state. Figure 5 is a side view of Figure 4, Figure 6 is a diagram of the inner surface polished, Figure 7 is a diagram of the side surface polished, Figure 8 is a plan view of the diamond cut state, and Figure 9 is the head polished state of the force setting tape. FIG. a...Common rotation center line, 6゛゜゜゜゛pressing tool・
22゛゜... Workpiece, 1... Machine base, 5...
...Spindle, 8...Chuck for supporting the workpiece.

Claims (1)

[Claims] 1 Spindles that are rotatable around a common rotational center line are provided on the machine base so as to be slidable so as to face each other along the center line, and press tools facing each other are provided at the tips of the spindles. A machine tool comprising: a workpiece supporting chuck provided on the outer periphery of the spindle; the chuck and the spindle being slidable relative to each other; and the tip of the spindle being movable in and out of the chuck.