JPS60217062A - Surface polishing device - Google Patents

Abstract

PURPOSE:To easily exchange a grinding wheel, by removably setting through a mounting plate divide piece a solid grinding wheel to a section divided by a line crossing a center part or an internal circle on the surface of a surface plate, in the case of a surface grinding device equipping a circular or annular lapping disc. CONSTITUTION:A lapping disc 1 is formed by mounting by a screw a plurality of solid grinding wheels 4 of almost sector shape to a center holed lapping surface plate 2 through a mounting plate divide piece 3. A clearance 3a radially formed between the solid grinding wheels 4 discharges polishing dust and/or fall- off abrasive dust to the outside. Here the mounting plate divide piece 3, formed in a plane-shape equal to that of plural sections formed by dividing the lapping surface plate 2 by plural imaginary lines crossing its center, provides interchangeability, forming respectively two screw holes. This mounting plate divide piece 3, on which the solid grinding wheel 4 in an equal shape to the divide piece 3 is piled by aligning a screw hole 4a to the screw hole of the mounting plate divide piece 3, is mounted to the surface plate 2 by inserting the screw into the screw hole 4a.

Description

Detailed Description of the Invention [Field of Industrial Application] The present invention relates to a surface polishing device such as a lapping machine that grinds or polishes an object to be polished by bringing it into contact with the surface of a solid grindstone and by the action of the solid grindstone. It is something.

[Conventional technology]

Conventionally, when attaching a solid grindstone to a lapping polishing machine, the common method was to apply an adhesive, hot melt, etc. to the surface of a metal surface plate that rotates in the circumferential direction, and then adhere the solid grindstone.

[Problem that the invention seeks to solve]

However, with this method, it is quite difficult to attach the grinding wheel to the surface of the large lapping surface plate without removing it from the polishing machine, which may result in weak adhesive strength or some parts not being adhered. This resulted in problems such as peeling and falling off during the polishing process. In addition, it was extremely difficult to replace a damaged grindstone. In particular, this tendency was remarkable when the type of polishing machine was a double-sided lapping and polishing machine in which two lapping disks were combined with their abrasive surfaces facing each other.

Furthermore, if all the grinding wheels are used up during polishing work and a new one is to be installed, the remaining grinding stone pieces, adhesive, etc. on the surface of the lapping plate should be completely peeled off and the surface should be uniformly purified. However, in order to perform this work on the entire surface of a large surface plate, it is an extremely large-scale work that requires disassembling the device and removing the surface plate, which requires a lot of effort and time. It must be done by spending
This resulted in a significant drop in capacity utilization and an increase in operating costs.

In order to solve the above-mentioned problems of conventional lapping and polishing machines, the inventors conducted intensive research and completed this invention.The purpose of this invention is to replace the grinding wheel. It is an object of the present invention to provide a flat surface polishing device that can be easily and securely mounted, thereby greatly improving the operating rate.

[Means for solving problems]

In order to achieve the above object, the present invention provides a surface polishing apparatus comprising a lapping disk having a structure in which a solid grindstone is attached to a circular or annular lapping surface plate.
A solid grindstone is disposed on a mounting plate divided piece having a substantially equal planar shape in a plurality of areas divided by a line crossing the center portion or inner circle of the surface plate surface, and the mounting plate divided piece is It is configured to be detachably mounted on the wrapping surface plate.

Next, the present invention will be explained in detail based on examples.

〔Example〕

FIG. 1 shows an embodiment of the invention. In the figure, l is a lapping disk, and a lapping surface plate 2 with a center hole
It is constructed by screwing a plurality of substantially fan-shaped solid grindstones 4 through the mounting plate divided pieces 3. 3a is a gap formed radially between the solid grindstones 40, through which polishing powder and fallen abrasive powder are discharged to the outside. In this case, the mounting plate divided piece 3
are each configured to have a planar shape (approximately fan-shaped) that is equal to the planar shape (approximately fan-shaped) of a plurality of areas (all having the same area) formed by dividing the wrapping surface plate 2 by a plurality of imaginary line segments crossing the center thereof. They are interchangeable, and each has two screw holes 5 as shown in FIG. On this mounting plate divided piece 3, a substantially fan-shaped solid grindstone 4 having the same shape as the divided piece 3 is stacked with the screw hole 4a aligned with the screw hole 5 of the mounting plate divided piece 3, and in this state, the As shown in FIG. 3, the screw 6 is inserted into the screw hole 4a and screwed onto the lapping surface plate 2. A surface polishing apparatus equipped with such a lapping disk 1 polishes the surface of a workpiece based on a wet method while relatively rotating the lapping disk and the workpiece (not shown).

In this device, two sets of mounting plate divided pieces 3 are prepared for one wrapping disk 1, and one set is always kept as a spare. Then, while the polishing device is in operation, after cleaning the surface of the spare mounting plate segment 3, the solid grindstone 4 is attached and preparations are made.

When the grinding wheel 4 of the lapping disk 1 is used up during operation, or when careful dressing work is required due to a decrease in grinding capacity, the solid grinding wheel 4 can be removed from the lapping disk 1 by attaching it to the mounting plate divided piece. Remove all 3 and replace with a spare set. By doing so, operation can be resumed easily and quickly.

The material of the mounting plate segment 3 is not particularly limited, but from the viewpoint of lightness, strength, and cost, lightweight structural materials such as light metals such as aluminum alloy, plastic plates, and glass fiber reinforced plastic plates are suitable. . Furthermore, it is desirable that the number of mounting plate division pieces 3 attached to the surface of the wrapping disk 1 is changed as appropriate depending on the size of the wrapping disk 1. For example, a relatively small number of divisions, such as 16 to 24 divisions for a large disc with an outer diameter of 100' O+n or more, and 2 to 10 divisions for a smaller disc, is sufficient.

FIG. 4 is a block diagram of another embodiment of the present invention.

In the figure, 7 is a wrapping surface plate, 8 is a mounting plate divided piece,
9 is a cylindrical grindstone, and 10 is a lapping disk. That is, as shown in FIG. 5, the lapping disk 10 of this surface polishing device has a column-shaped cylindrical grindstone 9 placed on a substantially fan-shaped mounting plate divided piece 8, with its top polishing surface positioned on the same plane.
and by planting them at a predetermined distance from each other, and screwing them onto the wrapping surface plate 7 by inserting the screws 12 into the screws 11 provided on the substantially fan-shaped mounting plate divided pieces 8, as shown in FIG. It is configured.

As described above, in this surface polishing device, the lapping disk 10 is constructed by arranging the cylindrical grindstones 9 with small contact resistance on the outer circumferential surface at intervals, so that polishing powder and dropped grindstones are prevented. , and at the same time as it is generated, it passes between the cylindrical grindstones 90 and is immediately discharged to the outside of the lapping disk 10. Therefore, clogging of the cylindrical grindstone 9 is effectively prevented, and the initial polishing accuracy and polishing efficiency can be maintained for a long time without the need for dressing.

FIG. 7 is a plan view of a metal wrapping surface plate used in still another embodiment of the present invention. In the figure, the lapping surface plate 13 has a circular disk shape or an annular disk shape with a through hole formed in the center circle. This surface plate 13 is divided into a plurality of areas A to H by imaginary line segments a % d that cross the center J or the inner circle K. In this case, the virtual line segments a to d are straight lines, and the areas A to H all have the same shape.

It is most preferable to divide the area into substantially fan-shaped sections having equal areas.

A screw hole 21 is bored in each area of the surface plate 13, respectively. As shown in FIG. 8, mounting plate division pieces 13a having substantially the same planar shape as the respective regions are attached to the divided areas of the surface plate surface of the surface plate 13. "Substantially equal" here means, for example, when trapezoidal mounting plate segments are attached to a substantially fan-shaped area, or when it is necessary to provide a slight gap between adjacent mounting plate segments, etc. This means that a slight error in is allowed. This mounting plate division piece 13a corresponds to the substantially fan-shaped area of the surface plate surface, and has a screw hole 14 that matches the screw hole 21. As shown in FIG. 9, two solid grindstones 1.5.15 are mounted on the surface of the mounting plate divided piece 13a.
a is fixed with adhesive. These solid whetstones 15.15a
A set of two pieces has a planar shape approximately equal to the fan shape of the mounting plate divided piece 13a. 15b is the two solid grindstones 15 mentioned above.
．． The gap formed between 15a functions to discharge polishing powder and fallen abrasive powder to the outside by centrifugal force caused by rotation.

Reference numeral 16 indicates a screw insertion hole 16 formed in each of the solid grindstones 15, 15a so as to match the screw hole 14.

Mounting plate divided piece 13 that adhesively supports solid grindstones 15, 158
A is bored in the surface plate 13, as shown in FIG. The bolt 17 is screwed into the bolt hole 21.

In this way, the solid grindstone 15.15a is placed on the entire surface of the surface plate 13.
FIG. 11 shows the wrapping disk 18 on which the wrapping disk 18 is attached. The surface polishing device equipped with the lapping disk 18 has the same effects as the surface polishing device of the embodiment described above.

〔Effect of the invention〕

According to the surface polishing device according to the present invention, the work of attaching the grindstone to the lapping disk or replacing the grindstone becomes extremely easy and quick, and the burden on the worker can be significantly reduced, and at the same time, the operating rate of the device can be greatly improved. becomes possible.

In other words, conventionally, in order to bond a grindstone to a lapping surface plate, it was necessary to stop operation for at least one day and perform peeling and bonding work, but with the device of the present invention, a separate set of mounting plate segments is prepared. By adhering a grindstone to this in advance, the time required to replace the grindstone can be significantly shortened. More types.

By preparing grindstones with different grits as needed, they can be replaced at any time, and one polishing device can be used for multiple purposes. Furthermore, even if one of the grindstones is damaged or a grindstone of abnormal quality is mixed in for some reason, only that part can be easily replaced, which is economical. Also,
Since the work of gluing the grindstone is performed on the mounting plate segments, which are relatively light and small and easy to handle, it is possible to perform the work in detail and with great care, almost eliminating accidents due to gluing errors and poor adhesion, improving operating rates and reducing labor costs. This, combined with the reduction in , brings about significant effects such as a significant reduction in operating costs.

[Brief explanation of drawings]

FIG. 1 is a perspective view of a wrapping disk used in an embodiment of the present invention, FIGS. 2 and 3 are explanatory views of its constituent parts,
FIG. 4 is a perspective view of a wrapping disk used in another embodiment of the invention, FIGS. 5 and 6 are explanatory diagrams of its constituent parts, and FIGS. 7 to 10 are still other embodiments of the invention. FIG. 11 is a perspective view of the wrapping disk. 1. - Lapping disc 2 - Lapping surface plate 3 - Mounting plate division piece 4 - Solid whetstone Patent applicant Kanebo Co., Ltd. Representative Patent attorney Yukihiko Nishifuji Figure 4 Figure 7 Figure 8 Figure 9 Figure 10 Figure 11

Claims (1)

[Claims] +11 In a surface polishing device equipped with a lapping disk having a structure in which a solid grindstone is attached to a circular or annular lapping surface plate, a line that crosses the central portion or inner circle of the surface of the surface plate; A solid grindstone is disposed on a mounting plate divided piece having substantially the same planar shape as a plurality of areas partitioned by , and the mounting plate divided piece is removably mounted on the lapping surface plate. Surface polishing equipment. (2) The line that crosses the center part or the inner circle is a straight line,
2. A flat surface polishing apparatus according to claim 1, wherein the surface plate surface is divided into substantially fan-shaped areas of equal area. (3) The surface polishing apparatus according to claim 1 or 2, wherein the mounting plate segment is made of a lightweight structural material such as aluminum alloy, plastics, or glass fiber reinforced plastics.