JPS63200958A - Lapping device - Google Patents

Abstract

PURPOSE:To lap a workpiece with a combined action of tape travel and vibration, by vibrating a tape holding part in a direction to be crossed with the scanning direction of a lapping tape by a vibrating mechanism, in the case of a lapping device for the thin disc work or the like. CONSTITUTION:A thin disc work W is mounted on a rotary plate 4 and rotated, while a lapping tape T is traveled at low speed to the underside of a pressing body 34 via a guide roller 35, making a mount 19 go down with a lifting cylinder 21, and the tape T is pressed to the work W by the pressing body 34. Simultaneously, when a slide block 8 is vibrated in a direction to be crossed with a traveling direction of the tape T by rotation of a vibro-motor 40 of a vibrating mechanism 39, the work W is efficiently lapped by a combined action of travel of the tape T and its vibration. Thus, a finished surface of the work is made so better, while the working property is improved and, what is more, a mechanical structure is made simplifiable.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a wrapping device capable of wrapping thin disc-shaped works such as CD stampers and hard disk stampers.

[Conventional technology]

Conventionally, as this type of lapping device, a so-called lapping machine using a lapping agent, a puff polishing machine, etc. are known.

[Problem that the invention seeks to solve]

However, with the conventional structure described above, it may not be possible to obtain a fully satisfactory finished surface condition of the workpiece, and there are disadvantages in terms of equipment and maintenance costs and workability.

[Means for solving problems]

The present invention aims to eliminate these inconveniences, and its gist is to provide a workpiece drive unit having a rotary plate on which a plate-shaped workpiece can be placed, and a pressurizer capable of pressing the running wrapping tape against leakage. A wrapping device comprising a tape holding part having a body and a vibration mechanism that vibrates the tape holding part in a direction crossing the running direction of the rubbing tape, and wrapping a plate-shaped work with a wrapping tape. be.

[Effect]

A plate-shaped workpiece is placed on the rotating plate of the workpiece drive section, the pressing body of the tape holding section presses the running wrapping tape against the workpiece, and the vibration mechanism moves the tape holding section in a direction that intersects with the running direction of the wrapping tape. When the workpiece is vibrated, the workpiece is wrapped by the combined effect of the rotation of the workpiece, the running of the wrapping tape, and the vibration.

〔Example〕

1 to 6 show an embodiment of the present invention. Reference numeral 1 denotes a work drive unit, in which a rotating shaft 3 is provided in the center of a machine stand 2, and a plate-shaped workpiece W1 in this case is mounted on the rotating shaft 3. A rotating plate 4 on which a disc-shaped stamper can be placed is attached, and a rotating mechanism (not shown) for rotating a rotating shaft 3 is provided.

Reference numeral 5 denotes a tape holding section, in which a guide shaft 7 is horizontally installed in the radial direction of the rotary plate 4 in two stages, upper and lower, on the machine base 2 using a bracket 6, and a slide base 8 is slidable on the guide shaft 7 using a bearing 9. At the same time, a connecting metalwork O is provided on the guide shaft 7 so as to be slidable by a bearing (not shown), and a bracket 11 is attached to the machine base 2.
Attach the moving cylinder and connect the rod of the moving cylinder to the connecting base 10 via the bracket 13.
The mounting member 14 is mounted on the slide base 8 by means of a fulcrum shaft, and the mounting member 14 is provided so as to be tiltable back and forth by means of an adjustment elongated hole 16, an adjustment bolt 17 and a nut. - A vertical movement cylinder 21 is provided to move the mounting base 19 up and down, and a holding base n is provided on the mounting base 19 so as to be movable up and down by a guide shaft n.The lower limit of the holding base n is provided on the guide shaft n. A spring U is provided, an adjustment screw portion 5 is provided on the mounting base 19, a cushion spring is provided in the center of the holding device, a plunger rod is provided above the cushion spring, and the adjustment screw portion 5 is provided on the plunger rod. A holding shaft 4 is provided in the front part of the holding base B so that it can be prevented from rotating with a key and can be adjusted in the vertical direction with a nut 31, and a holding frame 32 is fixed on the holding shaft 4. The holding frame is surrounded by a roller-shaped pressing body covered with an elastic material such as rubber* in the center, and guide rollers on both sides.
Attach the mounting base plate to the holder, install a supply reel and a take-up reel with wrapping tape T wrapped around it on both sides of the mounting base, and attach the wrapping tape T to the supply reel, guide roller, and pressing body. U, the guide roller and the winding-lure are wrapped around each other, and the rubbing tip T is configured to be able to run at low speed.

39 is a vibration mechanism, in which a vibration motor 40 is attached to the slide table 8, and a connecting piece 4 is attached to the main shaft 41 of the vibration motor 40.
2, a cam roller 43 eccentric to the axis of the main shaft 41 is attached to the connecting piece 42, and a guide piece having a groove that engages with the cam roller 43 is attached to the connecting base 10.

Reference numeral 46 denotes another wrapping device, which is constructed in substantially the same manner as in the above embodiment, except that the width and roughness of the wrapping tape T are different.

Since this embodiment has the above configuration, the thin disk-shaped workpiece W
is manually or automatically placed on the rotary plate 4, the rotary plate 4 is rotated by a rotating mechanism (not shown), the wrapping tape T is run at low speed, and the connecting table 10, guide plate and cam roller are moved by a moving cylinder. 43. The slide table 8 is advanced by the force passed through the vibration motor 40, the mounting table 19 is lowered by the vertical sill 21 of the tape holding part 5, and the wrapping tape T is pressed to 7-ku W by the pressing body. , vibration mechanism 39
The connecting piece 42 is rotated by the vibration motor 40, and the sliding base 8 is rotated by the eccentric engagement between the cam roller 43 and the grooved material.
When the rubbing tape T is vibrated in a direction crossing the running direction through the mounting member 14, the workpiece W is lapped by the combined effect of the rotation of the workpiece W, the running of the rubbing tape T, and the vibration.

When this wrapping is completed, the vertical cylinder 21 and the moving cylinder 21 are operated to return to the original position.

In this case, it is then wrapped by another wrapping device 46.

Therefore, the finished surface of the workpiece W can be improved, and the equipment cost and maintenance cost can be reduced by simplifying the structure.
It also improves work efficiency.

In this case, since the mounting member 14 can be tilted back and forth, the rubbing tape T and the workpiece W can be brought into proper inclined pressure contact.

〔Effect of the invention〕

As described above, the present invention can wrap a workpiece by the combined action of rotation of the workpiece, running of the wrapping tape, and vibration.
Not only can the finished surface of the workpiece be improved, but also the equipment cost and maintenance cost can be reduced by simplifying the structure, and workability can be improved.

As described above, the intended purpose can be fully achieved.

[Brief explanation of the drawing]

The drawings show one embodiment of the present invention; FIG. 1 is an overall plan view, FIG. 2 is a side view thereof, FIG. 3 is a side view of the main parts thereof, FIG. 4 is a plan sectional view thereof, and FIG. FIG. 5 is a front view thereof, and FIG. 6 is a partial sectional view thereof. W: Work, T: Wrapping tape, 1: Work drive unit, 4: Rotating plate, 5: Tape holding unit, U: Pressing body, 39: Vibration mechanism. February 12, 1985 Applicant: Sanshinsho F1 Co., Ltd.

Claims (1)

[Claims] a work drive unit having a rotary plate on which a plate-shaped work can be placed; a tape holding unit having a pressing body capable of pressing a running wrapping tape against the work; and a tape holding unit that intersects the running direction of the wrapping tape. A wrapping device is characterized in that it consists of a vibration mechanism that vibrates in a direction, and wraps a plate-shaped workpiece with a wrapping tape.