JPH07100294B2 - Wrapping device - Google Patents

Description

The present invention relates to a lapping apparatus capable of lapping a thin disk-shaped work or the like such as a CD stamper and a hard disk stamper.

[Prior Art] Conventionally, as this type of lapping apparatus, a so-called lapping machine using a lapping agent, a buffing grinder, and the like have been known.

[Problems to be Solved by the Invention]

However, in the case of the above-described conventional structure, it may not be possible to obtain a satisfactory finished surface state of the work, and there are disadvantages in terms of the apparatus, maintenance cost and workability.

[Means for Solving the Problems]

The present invention is intended to eliminate these inconveniences, and the gist thereof is a work drive unit having a rotating plate on which a flat plate-shaped work can be mounted, and a wrapping tape which holds a running wrapping tape. A tape holding unit having a pressing body capable of pressing the work placed on the rotary plate of the work driving unit and a supply reel to a take-up reel to continuously feed the wrapping tape to the tape holding unit. A tape winding device that moves integrally with the tape holding part, and a holding part moving mechanism that moves the tape holding part up and down and presses the wrapping tape against the work with a predetermined pressure by the pressing body of the toe holding part and retracts the work. And a holding body is provided on a mounting portion which is moved by the holding portion moving mechanism via a spring, and the pressing body is vertically provided on the holding body to elastically press the holding body of the spring. The wrapping tape is configured to be elastically urged against the work by the urging force, and the wrapping tape is elastically contacted with the work by the urging body. The polishing pressure fine adjustment mechanism configured to finely adjust the pressing degree of and the vibration mechanism for vibrating the tape holding portion in the direction intersecting the running direction of the wrapping tape are provided to vibrate the flat work. The lapping device is characterized in that the lapping tape is configured to lap while running while elastically abutting with a predetermined pressing degree.

[Action]

A flat plate-shaped work is placed on the rotary plate of the work drive unit, and the tape holding unit is moved closer to the work by the holding unit moving mechanism.
The pressing body of the tape holding unit presses the wrapping tape running by the tape winding device against the work to wrap it. At this time, the wrapping tape is pressed with a predetermined pressure by the pressing body by the approaching movement control by the holding unit moving mechanism, and the elasticity of the spring for elastically urging the pressing body is further adjusted by the polishing pressure fine adjustment mechanism. The degree of elastic pressure pressing of the wrapping tape to the work by the pressing body is finely adjusted by adjusting with the pressing body, and the lapping tape is elastically abutted on the work with this finely adjusted pressing degree. Vibrates in a direction intersecting with the running direction of the wrapping tape, and the work is lapped by a combined action of rotation of the work, running of the wrapping tape and vibration in a state in which the work is elastically abutted with an appropriate degree of elastic pressure.

〔Example〕

1 to 6 show an embodiment of the present invention, in which 1 is a work drive unit, in which a rotary shaft 3 is provided at the center of a machine base 2 and a plate-shaped work W is provided on the rotary shaft 3, A rotary plate 4 on which a thin disk-shaped stamper can be mounted is attached, and a rotary mechanism (not shown) for rotating the rotary shaft 3 is provided.

Reference numeral 5 denotes a tape holding portion, which is used as the rotating plate 4
It is attached to the machine base 2 via a holding part moving mechanism that can move forward and backward in the radial direction and can move up and down in the vertical direction. Specifically, a guide shaft 7 is horizontally installed in the upper and lower two stages in the radial direction of the rotary plate 4 on the machine base 2 by a bracket 6, and a slide base 8 is slidably provided on the guide shaft 7 by a bearing 9. 7, a connecting base 10 is slidably provided by a bearing (not shown), a moving cylinder 12 is attached to the machine base 2 by a bracket 11, and a rod of the moving cylinder 12 is connected to the connecting base 10 via the bracket 11. The mounting member 14 is attached to the slide base 8 by a fulcrum shaft 15, and the mounting member 14
Is provided so that it can be tilted back and forth by the adjustment slot 16, the adjustment bolt 17, and the nut 18, and the mounting base 14 is provided with the mounting base 15 which can be moved up and down by the guide shaft 20, and the vertically moving cylinder 21 which vertically moves the mounting portion 19. , The pressing member 34 is attached to the mounting portion 19 by the guide shaft 22.
A holding body 23 as a member for hanging down is provided so as to be vertically movable, a lower limit spring 24 of the holding body 23 is provided on the guide shaft 22, and an adjusting screw portion 25 is provided on the mounting portion 19, and the center of the holding body 23 is provided. Portion, a cushion spring 26 is provided, a plunger body 27 is provided above the cushion spring 26, the adjusting push rod 28 of the adjusting screw portion 25 is brought into contact with the plunger body 27, and the holding shaft 29 is keyed to the front portion of the holding body 23.
It is provided in a state where it is not rotated by 30 and can be adjusted vertically by a nut 31, and a holding frame 32 is fixed to a holding shaft 29.
A roller-shaped pressing body 34 covered with an elastic material 33 such as rubber is provided in the central portion of 32, guide rollers 35 are provided on both sides, a mounting base 36 is attached to the holding body 23, and lapping is performed on both sides of the mounting base 36. Supply reel 37 and take-up reel around which the tape T is wound
38, the wrapping tape T is wound around the supply reel 37, the guide roller 35, the pressing body 34, the guide roller 35 and the take-up reel 38, and the wrapping tape T can be run at a low speed by the tape take-up device. .

39 is a vibration mechanism, and a vibration motor 40 is attached to the slide base 8.
And a connecting piece 42 attached to the spindle 41 of the vibration motor 40, and a cam roller eccentric to the axis of the spindle 41 on the connecting piece 42.
43 is attached, and a guide piece 45 having a groove 44 that engages with the cam roller 43 is attached to the connecting base 10.

Reference numeral 46 denotes another lapping device, which is constructed in substantially the same manner as in the above-mentioned embodiment, and has different types such as width and roughness of the lapping tape T.

Since this embodiment has the above-mentioned configuration, it is a thin disk-shaped work W.
Is placed artificially or automatically on the rotating plate 4, the rotating plate 4 is rotated by a rotating mechanism (not shown), the lapping tape T is run at a low speed, and the moving cylinder 12 is used to connect the connecting table 10 and the guide piece.
45, the cam roller 43, and the vibration motor 40 force the slide base 8 to move forward to move the tape holder 5 up and down.
The mounting portion 19 is lowered by 21 and the wrapping tape T is pressed against the work W by the pressing body 34, the connecting piece 42 is rotated by the vibration motor 40 of the vibration mechanism 39, and the cam roller 43 and the concave groove 44 are eccentrically engaged. The slide base 8 is vibrated by the
When the wrapping tape T is vibrated via 14 in a direction intersecting the traveling direction, the work W is lapped by the combined action of the rotation of the work W, the traveling and vibration of the wrapping tape T.

When this lapping is completed, the vertical cylinder 21 and the moving cylinder 12 are actuated to return to the original position.

In this case, another lapping device 46 then wraps.

Therefore, the finished surface of the work W can be improved, and the device cost and maintenance cost can be reduced by simplifying the structure.
And workability can be improved.

In this case, since the mounting member 14 can be tilted back and forth, the tilt pressure contact state between the wrapping tape T and the work W can be properly adjusted.

〔The invention's effect〕

As described above, according to the present invention, the work can be lapped by the combined action of the rotation of the work, the running of the wrapping tape, and the vibration in the state in which the work is elastically abutted at an appropriate elastic pressure degree, and the finished surface of the work can be improved and the structure is simple Device cost and maintenance cost can be reduced and workability can be improved.

Moreover, the present invention controls the operation of the holding unit moving mechanism by controlling the elevation of the tape holding unit by the holding unit moving mechanism so that the pressing member of the tape holding unit can press and retract the wrapping tape against the work with a predetermined pressure. The polishing degree can be freely adjusted and set, it can be retracted when it is not needed, and a vibration mechanism for vibrating the tape holding portion in a direction intersecting the running direction of the wrapping tape is also provided, so that it is not a mere lapping polishing but a predetermined one. Since it vibrates in that state in addition to the pressing by the pressure, it becomes an extremely excellent lapping device capable of obtaining an extremely good lapping surface.

Moreover, according to the present invention, not only can the polishing pressure be roughly adjusted by the holding portion moving mechanism as described above, but a holding body is provided on the mounting portion moved by the holding portion moving mechanism via a spring. The pressing body is hung vertically, and the pressing body is elastically biased by the action of elastically holding the holding body of the spring so that the wrapping tape can be elastically abutted on the work by the pressing body. A holder for elastically urging the pressing body because it has an elastic pressure adjusting mechanism for adjusting the expansion and contraction, and has a polishing pressure fine adjusting mechanism configured to finely adjust the degree of pressing of the wrapping tape against the work by the pressing body. By adjusting the expansion and contraction degree of the spring provided on the work piece by the elastic pressure adjustment mechanism, the elastic pressing degree of the wrapping tape by the pressing body to the work can be finely adjusted, and the work piece can be adjusted by the finely adjusted pressing degree. The ping tape is elastically abutted, and in this state, the vibrating mechanism vibrates the lapping tape in the direction intersecting the traveling direction.Therefore, the work is rotated, the lapping tape travels, and the elastic pressure is appropriately abutted on the workpiece. Highly accurate flat polishing that is lapped by the combined action of vibrations becomes possible.

Therefore, according to the present invention, a so-called tape winding unit integrally provided with a so-called tape winding device is provided so as to be movable, and a reciprocating fine movement is made by a vibrating mechanism. In addition to pressing and abutting, the wrapping tape is elastically abutted on the work by the pressing body by the elastic force of the spring, and the elastic pressing degree is adjusted by the elastic pressure adjusting mechanism to the elasticity of the spring that elastically presses the pressing body. As a result, fine adjustment can be performed, resulting in an extremely accurate lapping device.

[Brief description of drawings]

The drawings show one embodiment of the present invention. FIG. 1 is an overall plan view, FIG. 2 is a side view of the same, FIG. 3 is a side view of its main part, and FIG. Figure 5 is its front view, No. 6
The figure is a partial sectional view thereof. 1 ... Work drive part, 4 ... Rotating plate, 5 ... Tape holding part, 24, 26 ... Spring, 34 ... Pressing body, 37 ... Supply reel, 38 ... Take-up reel, 39 ... Vibration Mechanism, T ... Wrapping tape, W ... Work.

Claims (1)

[Claims] 1. A work drive unit having a rotary plate on which a flat plate-shaped work can be placed, and a running wrapping tape, and the wrapping tape can be pressed against the work placed on the rotary plate of the work drive unit. A tape holding unit having a pressing body; and a tape winding device that travels from a supply reel to a take-up reel to continuously feed and supply a wrapping tape to the tape holding unit, and moves integrally with the tape holding unit. A holding unit moving mechanism that moves the tape holding unit up and down to press and retract the wrapping tape against the work by the pressing body of the tape holding unit and a mounting unit that moves by the holding unit moving mechanism via a spring. A holding body is provided, and the pressing body is hung vertically on the holding body to elastically press the pressing body by the action of elastically pressing the holding body of the spring to clamp the wrapping tape. It is configured so that the pressing body can elastically contact the work, and an elastic pressure adjusting mechanism that expands and contracts this spring is provided to finely adjust the degree of pressing of the wrapping tape against the work. A lapping tape that is provided with an adjusting mechanism and a vibrating mechanism that vibrates the tape holding portion in a direction that intersects the running direction of the wrapping tape, and runs while vibrating a flat plate-like work and elastically abutting at a predetermined pressing degree. A lapping device characterized in that it is configured so as to wrap.