JPS58196962A - Device for grinding the surface of thin plate - Google Patents

Abstract

PURPOSE:To finish the surface of a thin plate satisfactorily in a short time by attaching the thin plate on a turntable to turn the plate and moving an abrasive member in the radial directon, while pressing and forcing it to vibrate. CONSTITUTION:A thin plate 3 to be ground is fastened through a cushion member 4 to a turn table 1 adapted to be driven by a motor 2 for rotation by means of a clamping screw 5. An abrasive member feed mechanism 8 feeds new abrasive surface of an abrasive member 6 successively. The abrasive member 6 is pressed against the surface of the thin plate 3 through an arm 9 by a pressing member 7 at a predetermined pressure P. The abrasive member 6 is moved linearly in the radial direction of the thin plate 3 by a motor 14 and a feed screw 13 while being vibrated radially by means of a vibratory mechanism 12. Thus the surface of the thin plate is finished highly efficiently.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a thin plate surface polishing device that is applied to polishing the surface of a stamper in the production of disc-shaped recording media such as audio records and video discs.

As a conventional thin plate surface polishing device, a stamper surface polishing device used in the manufacturing process of audio records is known.

When this is moved between stations as shown in Fig. 1, (1) is a turntable, which is rotated by motor (2) K. (3) holds the buffer (4) with a thin polishing plate and tightens the clamp nut (5).
It is then clamped to the turntable (1). Loose my
(4) and (6) are abrasive materials such as rubber sheets and sponge sheets, and wet or dry sandpaper is used. The IiMtU (6) is pressed against the surface of the thin plate (3) by the suppressing member (7) and performs polishing. That is, the thin plate (3) and 1 are connected to the member (6) u
It is pressed 41) by the cushioning material (4) and the suppressing member (7). (8) Abrasive materials (6)
11th supply of new aspects of. (Shun-Ilω1 Sai system (6
), an arm containing a suppressing member (7), and an abrasive conveyance machine (8), swings around a ball QU and moves in a critical range for finishing the thin plate (3). Furthermore, arm (9) t
The structure is such that the Lt polishing layer (6) is elastically pressed against the thin plate (3) by pressure (P). Ql) Fi working fluid supply device supplies working fluid when using wet sandpaper.

In such conventional equipment, in order to improve the surface finish, it is possible to reduce the particle size of the sandpaper, but this increases the polishing time, and it is also possible to change the particle size of the sand vapor in stages. However, a problem arises in that the extraction of the device becomes complicated. Furthermore, in this device, since the feeding mechanism of the arm is a swinging type, it is difficult to stably feed the thin plate, and there are cases where uneven polishing occurs on the finished surface.

It is an object of the present invention to provide a polishing apparatus which can polish the surface of a thin plate to an extremely smooth surface in a short period of time.

In order to achieve this objective, the present invention provides a drive mechanism that linearly moves a suppression member that presses the abrasive material in the radial direction of the turntable, and a vibration mechanism that vibrates the suppression member in the radial direction of the turntable. A thin plate surface polishing device is provided.

By adding the vibration mechanism and changing to the mountain-to-heave movement, and by combining with other components, the following actions and effects are brought about.1) The vibration of the abrasive material causes sand vapor (Since the cutting path of the abrasive grains becomes complicated, cutting efficiency improves, and a good finished surface with less directionality can be obtained.

2) The working fluid is supplied by a nozzle or the like at the roughening stage where the thin plate is brought into contact with B1. In the finishing stage, the amount of 1" supplied is kept to an extent that it is ejected from the nozzle (by performing it in 2 stages, the cleaning action of fallen abrasive grains is effective in P1 rough machining - CI71 cutting efficiency By vibrating the abrasive material, when polishing is performed to increase the hardness of the polishing material and to obtain a good finish (3) by easily causing clogging.
Because the relative movement between the 1st test and the thin plate becomes complicated,
Biting of chips and fallen abrasive grains is reduced, cutting efficiency is even higher in rough machining, and the finishing surface is better.

3\In order to move the valve presser in a linear manner, its drive Ii
! #I simply has a small backlash, and since contact with the stable thin plate can always be made at the same angle, a good surface finish can be obtained. Furthermore, by adding vibration w and I, the combination of the rotation speed of the rotor/table, the vibration frequency, and the feed speed,
It is possible to set a thin plate of abrasive grains in a suitable state in which the x-j locus intersects at 90 degrees every time, and an extremely smooth surface can be obtained.

4) Regarding the supply of paulownia, it is recommended to improve cutting performance by constantly supplying a new surface of abrasive material during the rough machining stage, and to stop feeding the abrasive material during finishing machining. However, this finish also prevents the abrasive grains from being deeply bitten by the vibrations caused by abrasion during machining, which further improves the clogging effect and provides a smooth surface. A finished surface is obtained.

Next, let us clarify the actual glossy example of the present invention with two diagrams: (
1) is a turntable, which is rotated and pressed by a motor (2). . (311 is a thin plate for details, sandwiching the cushioning material (4) and attaching the flang nut (depending on the phrase, the turntable (1) i/(
Kula/) to be done. li & U (4> is something like a rubber sheet or sponge sheet. (6) is an abrasive material, and in the nine cases of this fire, a wet-type Tundo paver is used. Repression unit kidnapping consisting of guilt (7
) to apply 411+ pressure to the surface of the thin plate (3), and perform 411 rips. Since it is a Vi elastic body, it adheres closely to the abrasive material (6) even if the thin plate has unevenness or unevenness, and has a pattern suitable for thin plate shaming. I'm strong.

(8) Fi Senma Kiri Okuri Yokohi, Vt*Kai (6)! ]
i1. ．． Create a structure that supplies v and j to IIN + times,
Moreover, it is also possible to securely fasten the bamboo. This 410 controlled feed mechanism improves machinability by constantly supplying 4 sharp surfaces during initial rough machining in the moving part process (4) and improves machinability by constantly supplying 4 sharp surfaces during the initial rough machining process, and reduces the amount of abrasive material used in finishing machining. By stopping the clogging, you can eliminate the condition where clogging is likely to occur.(2
) is fitted with a vibration mechanism that applies vibration in the turntable radial direction V (V) to the suppression part (7), and this vibration mechanism (6) -
Due to the vibration of the C press part (7), the single mouth (6)
Since the abrasive grains are vibrated and the cutting path is smooth, cutting efficiency is increased and a good surface finish with less directionality can be obtained. In (b), one working liquid supply pipe is required, and the supply amount can be adjusted. That is, during the rough machining stage, the cleaning action of the abrasive particles during cutting is made effective by spraying the abrasive grains at the contact area between the abrasive (6) and the thin plate (3) using the Nozzle Nozzle. In the finishing step, the supply of working fluid I is suppressed to such an extent that it is not sprayed from the nozzle, thereby making it easier to cause clogging and obtaining a good surface finish. (9) is an arm, which includes an abrasive material (6), a suppressor part (7), an abrasive material feeding mechanism (8), and a vibration mechanism (6).
is integrally attached to the turntable, and is moved in the radial direction of the turntable by the motor α, thereby moving the turntable within the necessary range for finishing the thin plate (3). Furthermore, the mechanism 11L for elastically pressing the arm (9) II'i polishing A (6) against the surface of the thin plate (3) with the processing force (P) is broken.

According to the thin plate surface polishing apparatus of the present invention, as is clear from the above description, the turntable for clamping the thin plate, the pressing part side for pressing the abrasive material on the surface of the thin plate; 0 book is Yuichi Eihito's 44th place I-Fu^1''h1 Yu1 machining''fr The mechanism for sequentially sending out the L side, the means for supplying the working fluid, and the spinning press section 85 i! :2 Drive to move the turntable linearly in the radial directionwJJ)rIk
, a ladle, and a lifting mechanism that vibrates the suppressing member in the radial direction of the turntable, it is possible to eliminate uneven polishing due to the surface &l movement of the suppressing part, and it is also possible to remove the abrasive material. By vibrating, the cutting path of the abrasive grains becomes multi-axial, resulting in high cutting efficiency (A#) and a good finished surface with little directionality. It is possible to achieve an extremely good surface condition of # degree.

[Brief explanation of drawings]

Figure 1 is a perspective view of a conventional example, and Figure 2 is a perspective view of the present invention.
Firepower. It is a perspective view of 11 examples. (1) is a motor/table, (2) a motor, (3) is a thin plate, (4+II class price), (5) is a clamp screw, (6
) is Sengo-Kai, (7) Kei pressing part side, (3) is Sengo-Kai feed mechanism, (υ) is arm, θ1) i-, 1 work side supply bike, 0″41J shake hiJJ-like Yu, QJ N, l J,!, Rineshi, a Blue is motor i (A” diagram)

Claims (1)

[Claims] (1) a turntable that clamps the thin plate; a suppressing member that presses the abrasive material against the surface of the thin plate;
a mechanism for sequentially feeding new surfaces of the shaver; a means for supplying working fluid; a drive mechanism for linearly moving the suppressing member in the radial direction of the turntable; A nine-thin plate surface polishing device equipped with a vibration mechanism that vibrates in the direction.