JP2000280162A - Method and device for grinding vibrating barrel of disk- like article - Google Patents

Abstract

PROBLEM TO BE SOLVED: To efficiently grind disk-like articles without generating dent by setting a mean value of a space between disk-like articles at a specified times of dimension of a media to be used. SOLUTION: A disk-like article 20 is arranged adjacent to a disk-like article 21 with a space A, and the media 23a is flowed from this side toward the depth. The disk-like article 21 is arranged adjacent to a disk-like article 22 with the space B, and the media 23b is similarly flowed from this side toward the depth. Since the media is flowed between the disk-like articles so that the posture of the disk-like articles is maintained while working each other without generating collision of the disk-like articles with each other, the disk-like articles are arranged with a space enough for the flowing of the media between the adjacent disk-like articles or between a grinding vessel wall surface, and dimension of this space is set at 1.5-5 times of dimension of the media. In order to perform the efficient grinding, the media having 3 mm or more of dimension is desirably selected.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

TECHNICAL FIELD OF THE INVENTION
. The present invention relates to a method for polishing a vibrating barrel used for the purpose of removing burrs, return, oxide film and the like of a disk-like article to be polished, processing the surface to a desired roughness, rounding a corner, and the like. The present invention relates to a method for polishing a vibration barrel of an article and a vibration barrel for carrying out the method, and more particularly, to a method for polishing a plurality of disc-shaped articles inserted into one polishing area without interlocking the disc-shaped articles. BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vibration barrel polishing method and a vibration barrel polishing apparatus improved so as to reduce the occurrence of marks on the surface of the article due to collision of articles with each other.

[0002]

2. Description of the Related Art A vibratory barrel polishing method using a vibrating barrel polishing apparatus is conventionally used for the surface treatment of articles as described above. As a typical vibration barrel polishing method, a plurality of articles and media to be polished are charged into a box-shaped polishing tank having an open top, and the polishing tank is vibrated in a substantially circular shape. Such a vibration barrel polishing method has a feature that a large amount of articles can be polished at once without complicated control, and is widely used in a production process of an automobile part and the like in which the pursuit of efficiency is required. I have.

However, in these vibration barrel polishing methods, although a relatively small-sized medium flows in a substantially circular shape, a relatively large-sized article to be polished flows along a complicated trajectory. There has been a problem that they collide with each other and form a mark called a dent on the surface. In particular, when the article to be polished is a disc-shaped article, if it is allowed to flow freely, there is a problem that several disc-shaped articles overlap and flow, resulting in uneven polishing in which the overlapped portion is not polished, In addition, there is a problem that generally a dull corner is apt to cause a deep dent.

As a method for solving such a problem, for example, there is a method disclosed in Japanese Patent Application Laid-Open No. 10-138117. In this method, the polishing tank is divided into a plurality of polishing areas by a wall member, and one article is inserted into each of the polishing areas to perform polishing. There is no trace. However, if such a method is applied to polishing of a flat article such as a clutch plate, for example, it is necessary to divide the polishing tank into a huge number of polishing areas, which makes the apparatus expensive. ,
Because of the large number of wall members, which are consumable members, running cost was not satisfactory.

Further, a method of applying an apparatus called a gyro polishing machine disclosed in Japanese Patent Publication No. 60-4035l was examined. In this method, a plurality of disk-shaped articles were fixed to a jig and a polishing tank was fixed. No dents occur because they are charged into the material, but if such a polishing method is applied to an article requiring full-surface polishing such as a clutch plate, for example,
In order to polish the part that is not polished behind the jig, it is necessary to perform polishing again using another jig, it is not efficient, and it takes time to attach and detach to the jig It turned out to be inefficient.

[0006]

SUMMARY OF THE INVENTION The present invention has been made in view of the above circumstances, and has a feature of a vibrating barrel polishing method capable of polishing a large number of articles at once relatively inexpensively without complicated control. It is an object of the present invention to provide an improved method of polishing a disk-shaped article with a vibrating barrel, which can efficiently polish a disc-shaped article with no dents while utilizing it, and a vibration barrel polishing apparatus therefor.

In the course of various studies for solving the above-mentioned problems, the present inventors have found that disc-shaped articles being polished by a vibration barrel interact with each other and flow integrally, and this effect is obtained. As a result of intensive studies to positively utilize nicks for preventing dents, the present invention has been achieved.

[0008]

According to the basic structure of the present invention completed as described above, a plurality of disk-like articles to be polished are flowed at intervals in a posture parallel to the flow direction. The term “direction” refers to a method of polishing a vibrating barrel by arranging the polishing barrel in a straight line in a direction perpendicular to the direction, wherein the average value of the intervals is defined as 1. 5
It is characterized by being at least twice and at most 5 times.

Here, the flow direction is a direction perpendicular to the rotation axis of the counterweight which is the vibration driving means. For example, when the counterweight rotates counterclockwise, it refers to the horizontal left direction. Also, the direction perpendicular to the flow direction is
Refers to the direction parallel to the rotation axis of the counter weight,
Further, the attitude parallel to the flow direction refers to an attitude in which the center of rotation of the disc-shaped article is parallel to the rotation axis of the counterweight.

According to such a vibration barrel polishing method,
Since a plurality of disc-shaped articles to be polished are charged at intervals in a posture parallel to the flow direction, the media easily flows between the disc-shaped article and the adjacent disc-shaped article or the polishing tank wall. Thus, the flow of the media in the substantially circular polishing tank accompanying the vibration motion of the polishing tank is maintained. Further, since the disc-shaped articles are inserted in a straight line in a direction perpendicular to the flowing direction, they interact with each other and the attitude of the disc-shaped articles is maintained.

Next, the operation of the present invention will be described with reference to FIG. 2, which is a schematic enlarged view of the periphery of a disc-shaped article being polished.
This will be described in more detail. The disc-shaped article 20 is adjacent to the disc-shaped article 21 at an interval of A, and the medium 23a flows from the near side to the back between them. The disc-shaped article 21 is adjacent to the disc-shaped article 22 at the interval B, and the medium 23b flows between the disc-shaped article 22 and the back.

Here, when the disc-shaped articles 20, 21, and 22 are loaded with the interval of B being wider than the interval of A, the flow resistance 24 of the medium 23a becomes larger than that of the medium 23b.
Therefore, the force 27 for expanding the space between the disk-shaped article 22 and the disk-shaped article 21 is smaller than the force 2S for expanding the space between the disk-shaped article 21 and the disk-shaped article 20. The reference numeral 21 moves to the left in the figure and stabilizes so that the unbalanced force received from the left and right is averaged, that is, the interval between A and B is averaged.
Since the same effect works when the disc-shaped article is tilted,
The disc-shaped articles can be polished stably without colliding with each other by averaging the intervals while maintaining the inserted posture.

Further, since the media flow between the disc-shaped articles in this way, the disc-shaped articles can interact with each other and maintain their posture without colliding with each other. The media must be inserted with a space allowing easy flow of the media between adjacent disc-shaped articles or the polishing tank wall, and this dimension is 1.5 times or more the size of the media. Further, if the distance between the adjacent disk-shaped article or the polishing tank wall surface is increased, the interaction as described above is reduced, so that the distance must be set small, and at least the size of the medium used. If it is not more than 5 times, the polishing cannot be stably continued.

Another invention proposes to use carefully selected media. As a well-known general phenomenon, if you enlarge the media,
Since the polishing efficiency can be increased, it is preferable to select a medium having a size of at least 3 mm or more in order to perform highly efficient polishing. However, the above-mentioned interaction becomes unstable as the size of the medium increases. Unless media of different sizes are mixed and used, one-tenth or less of the diameter of the disc-shaped article is used. It is preferable to select the media.

In another aspect, it is proposed to use a carefully selected polishing bath. It is well known that if a flow path is formed so as to obstruct or suddenly change the flow direction, the flow is likely to cause turbulence, but the method of the present invention, as described in detail above, requires a stable flow. Depending on the state, the collision between the disc-shaped articles is prevented, and it is preferable to employ a polishing tank having a U-shaped cross section since turbulence is less likely to occur. Further, as described above, the disk-shaped article cannot move freely at least in a direction perpendicular to the flow direction, and thus it is difficult to maintain a stable interaction. The dimension in the direction (called the width) is at least 1.2 times the diameter of the disc-shaped article.

However, in a general vibration barrel polishing apparatus that generates non-uniform vibration close to an elliptical shape, even a disk-shaped article inserted in parallel with the flow direction generates revolving motion together with rotation. Adjacent disk-shaped articles may be displaced from each other and the aforementioned interaction may be impaired. In order to prevent such a phenomenon, it is effective to reduce the width of the polishing space of the polishing tank in the flow direction, and such a width is not more than twice the diameter of the disk-shaped article.

Another invention proposes a method for loading a carefully selected medium. In the ordinary vibration barrel polishing operation, the medium is often loaded with a maximum amount of medium that does not fly out of the polishing tank. However, as described in detail above, when revolving motion occurs in the disk-shaped article, it is preferable to reduce the amount of media loaded so that the disk-shaped article does not significantly shift in the vertical direction for the same reason. The loading amount of such a medium is a depth (meaning the distance from the upper surface of the medium to the bottom of the polishing space) of 1.5 times or less the diameter of the disk-shaped article. On the other hand, if the loading amount of the media is too small, not only does the above-mentioned disc-shaped article interact with each other and the action of maintaining the posture does not work effectively, but also the polishing cannot be performed efficiently. Therefore, it is preferable that the loading amount of the medium is 0.8 times or more the diameter of the disc-shaped article.

Another invention proposes a work procedure suitable for realizing the loading of the disk-shaped article as described above in an actual polishing work. First, a medium is loaded into a polishing tank in which the vibration driving means has been stopped. next,
The disk-shaped article to be polished must be at least 3
More than half of the medium is buried in the medium, and then the vibration driving means is operated. By performing such a procedure, the disk-shaped article is drawn into the medium by the flow motion of the medium that is generated while operating the vibration driving means, and can be linearly positioned at predetermined intervals in the medium. When the polishing for a predetermined time is completed, the vibration driving means is stopped, and the disk-shaped article after polishing is removed from the polishing tank, so that the disk-shaped article can be always maintained at a predetermined interval during polishing.

Another invention proposes another work procedure suitable for realizing the loading of the disk-shaped article as described above in an actual polishing work. First, the disc-shaped article is placed in a predetermined polishing state in which the disc-shaped article is linearly positioned at a predetermined interval in the medium by a method described in detail above, and the disc-shaped article located at one end in a direction perpendicular to the flow direction is taken out. Then, a disc-shaped article to be newly polished is inserted into the other end. By doing so, it is possible to continuously polish while keeping the number of disk-shaped articles in the polishing space at a predetermined number.

For example, it is assumed that 20 disc-shaped articles are set to a predetermined charging amount, and the interval between the disc-shaped articles is twice the size of the medium, and the thickness of the disc-shaped articles is negligible. . In this case, if one disc-shaped article is taken out from one end, the action described in detail above occurs, and each disc-shaped article moves, and the distance between the averaged disc-shaped articles is 2.1 of the size of the medium. Double. Next, if another disc-shaped article is inserted into the other end, the distance between the disc-shaped articles averaged by the same action is equal to the media size which is the initial size.
Return to double.

Further, for example, 19
The disc is used as a dummy disc-shaped article, the disc-shaped article to be polished is inserted only at one end on the insertion side, polishing is started, and then the disc is discarded from one end on the discharge side at a time interval of 1/20 of the predetermined polishing time. If the disc-shaped article to be polished is inserted into the loading side while the article is taken out, the polishing can be continuously performed for a predetermined constant polishing time. Further, it is possible to continue the unmanned operation by allowing the robot to insert and discharge the disk-shaped article.

Further, another invention proposes a method of supplying and discharging a polishing liquid which is carefully selected. When a polishing liquid is used in barrel polishing, chips may stay in the polishing liquid as polishing proceeds, which may reduce polishing efficiency. In particular, when a large number of disc-shaped articles having a large surface area are loaded and polished, a large amount of swarf is generated, and efficient polishing cannot be continued without frequently changing the polishing liquid. In such a case, if the polishing liquid is supplied continuously or intermittently and the surplus polishing liquid is discharged together with the chips, the excessive chips do not stay in the polishing tank. Preferably, polishing can be continued well with a polishing liquid interposed between the media.

Another invention proposes a carefully constructed polishing apparatus for realizing the above-mentioned polishing method. The polishing apparatus of the present invention is intended to embody the polishing method in a polishing apparatus provided with a general vibration driving means that generates an elliptical vibration which can be configured at a low cost, and is intended to realize the polishing method. The tank is provided with a baffle plate for restricting the movement of the disk-shaped article in the flow direction. The baffle plate may simply be a bar member that blocks the flow direction, or may be configured to be adjustable according to the diameter of the disc-shaped article. Although the baffle plate is inevitably worn, the attachment of the baffle plate makes it possible to implement the main polishing method described in detail above using an existing vibration barrel polishing apparatus. Note that the disc-shaped article needs to be freely movable in a direction perpendicular to the flowing direction, and a so-called jig for locking the disc-shaped article is not included in the baffle plate.

Another invention proposes another carefully constructed polishing apparatus for realizing the polishing method. A polishing apparatus according to the present invention is intended to embody the polishing method in a vibration barrel polishing apparatus provided with a general vibration driving unit that generates an elliptical vibration that can be configured at a low cost. The polishing tank is exchangeably fixed to the base, and a counterweight to which a rotation driving means is connected is fixed to the base so as to be freely rotatable and is also fixed to the machine frame so as to be able to vibrate freely.

As described in detail above, a vibration barrel polishing apparatus having a polishing layer having an excessively large polishing space using a consumable member such as a baffle plate can be used. Needless to say, the advantage of using a polishing tank having a large space size. It is preferable that only the polishing tank can be replaced, because it is possible to eliminate the waste of installing a plurality of vibration barrel polishing apparatuses according to the size of the article to be polished.

[0026]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, embodiments of the present invention will be described based on embodiments with reference to the drawings. 1 and 3, a box-shaped polishing tank 1 having a U-shaped cross section with an open top is fixed to a base 2 by screws so as to be exchangeable. The base 2 is fixed to the machine frame 3 so as to be freely vibrated by a helical spring 4. A rotating shaft 7 to which a counter weight 6 is fixed by a bearing 5 is rotatably fixed to the base 2. The rotating shaft 7 is connected to a motor 9 by a coupler 8 that blocks vibration but transmits rotation. The polishing tank 1 contains a predetermined amount of media 1
0 is inserted, and clutch plates as disc-shaped articles 11 are buried in the medium 10 linearly in parallel with the vibration direction at predetermined intervals.

A polishing liquid tank 1 is provided above the polishing tank 1.
2 and a discharge pipe 13 of the polishing liquid tank 12 is connected to a ball valve 14. The ball valve 14 is connected to a polishing liquid supply pipe 15 having the other end facing above the polishing tank 1. Then, a predetermined amount of the polishing liquid 16 is continuously supplied to the polishing tank 1. A waste liquid port is drilled at the bottom of the polishing tank 1, a waste liquid pipe 18 is connected to the waste liquid port, and excess polishing liquid 19 including chips in the polishing tank 1 is discharged to the waste liquid pipe 18.
Is led to the waste liquid channel in the factory.

In such a vibration barrel polishing apparatus,
When the motor is operated by a conventional electric circuit (not shown), the base 2 vibrates according to the rotation of the counter weight 6, the polishing tank 1 vibrates together with the base, and the clutch plate as the disk-shaped article 11 collides with each other. Polishing can be performed without performing polishing. After a predetermined time, the motor 9 is stopped by operating the electric circuit, and the polishing is completed. In the case where polishing is continued continuously, in the drawing, for example, a clutch plate as the disk-shaped article 11 at the left end is extracted, and a clutch plate as the disk-shaped article 11 to be newly ground is refilled at the right end.

The disk-shaped article 11 of this embodiment is a clutch plate having a diameter of 130 mm and a thickness of 4 mm shown in FIG.
Therefore, a polishing tank having a width of 200 mm and a length of 80 mm was selected and used by being fixed to a substrate. Polishing was performed by loading 42 clutch plates, and the average interval was 0.6 mm. As the media, a product symbol p2-F6 was selected from among lor cones (trade name, manufactured by Shinto Breiter Co., Ltd.), and was used by loading it to a depth of 130 mm. The media has a conical shape, and the diameter and height of the bottom surface are both 6 mm. The vibration barrel polishing machine was specially produced by improving the product name of Rorco vibratory polishing machine, product code VF-1423W, manufactured by Shinto Breta Co., Ltd. As the polishing liquid, a compound product symbol SLM manufactured by Shinto Breiter Co., Ltd. was selected and used by diluting it ten times with tap water. The supply rate of the polishing liquid was 100 cc / min.

When the polishing was performed under the above conditions, the clutch plate 11 was stably positioned diagonally downward in the flow direction as shown in FIG. 2, and the batch processing for a polishing time of 7 minutes was performed. The continuous processing of extracting and loading the plate was also successfully performed. Note that FIG.
Then, the rotation direction of the counterweight 6 is counterclockwise.

On the other hand, when the clutch plate was randomly inserted into the bar bench and polished, a large number of rejected products having a large distortion on the outer peripheral portion were produced. As a result of the observation, it was confirmed that such distortion was caused by the gear-shaped projections on the outer periphery of the clutch plate colliding with each other.

Also, a width of 394 m, a length of 682 mm and a depth of 4
In a non-improved bar bench with a polishing space of 05 mm, the above-mentioned media was loaded to a depth of about 80% in a stopped state of vibration, and 42 clutch plates were placed at even intervals at least two-thirds of the diameter. When polishing was started, the clutch plate was pulled into the medium and caused a full rotation motion in the vibration direction, and eventually the same disordered flow state as in the case described above, which was randomly charged, occurred, and some clutch plates became Some of the clutch plates flowed to cause uneven polishing, and some of the clutch plates could not be used due to severe engagement of the gear-shaped outer peripheral portions with large dents.

Further, in order to improve the polishing efficiency, a product symbol F20 was selected as a medium from Lolcon (trade name, manufactured by Shinto Breiter Co., Ltd.), and other conditions were set to be the same as those of the polishing method of the present embodiment. After polishing,
Immediately after the start of polishing, the clutch plate swung largely, and some of them collided and entangled soon, and stable polishing could not be continued. This medium had the same conical shape as the medium of the above embodiment, but the diameter and height of the bottom face were both 20 mm.

FIG. 5 shows another embodiment of the present invention. FIG.
, The four corners of the polishing tank 28 are
And the bottom of the polishing tank 28 has a bearing 3
Rotary shaft 3 with counter weight 32 fixed via 1
3 is rotatably fixed. The rotating shaft 33 is connected to a motor via a coupler not shown in the figure. Also, the polishing tank 28
A baffle plate 34 is disposed in the polishing space of. The baffle plate 34 is a plate-shaped member, and is detachably fixed to the polishing tank 28 by bolts which are provided across the length direction and not shown in the drawing.

The disk-shaped article to be ground used in this embodiment is a clutch plate having a diameter of 130 mm and a thickness of 4 mm shown in FIG. A bar bench manufactured by Shinto Breta Co., Ltd. was used as the vibration barrel polishing machine. Therefore, as a baffle, width 100 mm, length 682 mm, thickness 1
A 0 mm copper plate was inclined at 45 degrees, passed across the wall in the longitudinal direction of the polishing tank in parallel with the rotation axis, and screwed. The distance between the inner surface of the polishing tank in the width direction and the center of the baffle plate was 200 mm.
As the media, the above-mentioned product symbol p2-F6 was selected, and was used by loading it at a depth of 300 mm. This depth corresponds to the position of the upper end of the clutch plate when the clutch plate hits the baffle plate and stops. As the polishing liquid, the above-mentioned product symbol SLM was selected and used by diluting it 10 times with tap water. The supply rate of the polishing liquid was 100 cc / min.

When the polishing was performed under the above conditions, the clutch plate 11 was stably positioned near the baffle plate 34 as shown in FIG. 2, and the batch processing for a polishing time of 7 minutes was performed. The continuous processing of removing and charging the clutch plate was also successfully performed. In FIG. 4, the rotation direction of the counterweight 33 is counterclockwise.

[0037]

As described above, the present invention has the following effects. Vibration barrel polishing can be performed simultaneously without locking a large number of disk-shaped articles to be polished, so that loading and discharging can be performed in a short time, and the efficiency of the polishing operation can be increased. In addition, since a disc-shaped article can be charged into one polishing space at a high filling rate, polishing can be performed efficiently and polishing can be continuously performed. Furthermore, since it is sufficient to consider the relationship between the loading state of the disk-shaped article and the polishing space, there is no need to prepare an expensive apparatus having complicated operation control means or to train a specialized operator exclusively. It is.

Further, it has been pointed out that the mutual processing of the media during polishing accounts for a large proportion of the wear of the media during barrel polishing. However, it is necessary to minimize the size of the media required for carrying out the method of the present invention. The use of the polishing tank can suppress wasteful wear of the medium as a secondary effect, which leads to energy saving and environmental consideration.

Further, if the polishing tank is exchangeable and properly used depending on the purpose of processing, an optimum polishing environment can be realized efficiently, and the outer shape of the disk-shaped article to be produced is changed for design reasons. Even so, the production line can respond to it efficiently. In addition, it is often necessary to polish a small lot of prototypes in the thousands of units on a production line, but in such a case, a special polishing tank must be manufactured by attaching a baffle plate. It is also possible to respond to a prototype without it.

[Brief description of the drawings]

FIG. 1 is a partially cutaway front view showing a preferred embodiment of a vibration barrel polishing apparatus according to the present invention.

FIG. 2 is an explanatory diagram schematically showing an enlarged view of the periphery of a disk-shaped article which is a main part of the present invention.

FIG. 3 is a vertical sectional side view showing a preferred embodiment of a vibration barrel polishing apparatus according to the present invention.

FIG. 4 is a front view showing a clutch plate as an example of a disc-shaped article to be processed.

FIG. 5 is a vertical sectional side view showing another preferred embodiment of the vibration barrel polishing apparatus according to the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Polishing tank 2 Substrate 3 Machine frame 4 Spring 6 Counter weight 7 Rotation axis 10 Media 11 Disk-shaped article 34 Baffle plate

Claims (9)

[Claims] 1. A vibration barrel polishing method in which a plurality of disk-shaped articles to be polished are arranged in a straight line in a direction perpendicular to the flow direction at intervals in a position parallel to the flow direction, and charged in a polishing tank. The method of claim 1, wherein the average value of the intervals is used as a factor of 1. A method for polishing a vibrating barrel of a disc-shaped article, wherein the method is 5 times or more and 5 times or less. 2. The vibration of a disk-shaped article according to claim 1, wherein a medium having a maximum dimension of 3 mm or more and a diameter of 1/10 or less of a disk-shaped article to be polished is used. Barrel polishing method. 3. A disk-shaped article having a U-shaped cross section and having a dimension in the flow direction of the polishing space which is 1. The method according to claim 1 or 2, wherein a polishing tank having at least twice and not more than twice is used. 4. The method according to claim 1, wherein the media has a diameter of 0. The method according to claim 1, 2 or 3, wherein the polishing is carried out by loading the polishing tank to a depth of at least 8 times and at most 1.5 times. 5. A disk-shaped article to be polished is loaded into a medium loaded in a polishing tank in which vibration driving means is stopped so that at least two-thirds of its diameter is buried in said medium. 5. The disk-shaped article according to claim 1, 2, 3, or 4, wherein the means is operated, and after the polishing for a predetermined time, the vibration driving means is stopped and the polished disk-shaped article is taken out from the polishing tank. 6. Polishing method. 6. When one disc-shaped article polished in the polishing tank is taken out, another disc-shaped article to be newly polished is charged, and the number of disc-shaped articles being polished is maintained. It is a continuous polishing method performed while taking out a disk-shaped article located at one end in a direction perpendicular to the flow direction, and loading a disk-shaped article to be newly polished at the other end. The method according to claim 1, 2, 3 or 4, wherein the method comprises the steps of: 7. The polishing method according to claim 1, wherein the polishing liquid is supplied to the polishing tank continuously or intermittently, and polishing is performed while discharging an excessive polishing liquid from the polishing tank. Or a method for polishing a vibration barrel of a disk-shaped article according to 5 or 6. 8. A box-shaped polishing tank having an opening at an upper portion is fixed to a machine frame so as to be able to vibrate freely, and a counter weight to which a rotary driving means is connected is fixed rotatably to the polishing tank. 3. A method according to claim 1 or 2, wherein a baffle plate for restricting movement of the disc-shaped article to be polished in the flow direction is provided in the tank. Vibration barrel polishing equipment. 9. A box-shaped polishing tank having a U-shaped cross section is fixed to a base so as to be exchangeable, and a counter weight to which a rotary driving means is connected is fixed to the base so as to be freely rotatable and freely oscillated on a machine frame. A vibration barrel polishing apparatus for carrying out the method for polishing a vibration barrel of a disk-shaped article according to claim 8 which is fixed.