JPS63200962A - Dry high speed fluid polishing equipment - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Field of Application] The present invention relates to a dry high-speed fluid polishing apparatus capable of uniformly dry high-speed fluid polishing a workpiece (object to be polished).

[Conventional technology]

Traditionally, the workpiece (object to be polished) attached to the spindle
It is known that the workpiece is placed in a polishing tank filled with media to which abrasive grains and oil are attached, and the workpiece is made to flow at high speed in the media by rotating the spindle forward and backward and rotating on its own axis, thereby polishing the workpiece. (Japanese Patent Publication No. 37-17646).

[Problem that the invention seeks to solve]

However, this type of conventional dry high-speed fluid polishing apparatus may not be able to uniformly polish the entire surface of the workpiece. That is,
Figure 6 shows a state in which a workpiece C is attached and fixed to spindle a via a jig, and spindle a rotates (revolutions) in the direction of arrow R in the figure or in the opposite direction to R, and It rotates (rotates) in the opposite direction to the direction or r direction, and as a result, the workpiece C attached to the spindle a makes major and minor revolutions together with it, but the workpiece C with respect to the spindle a is fixed, the relative position of workpiece C with respect to spindle a does not change, and therefore the top and bottom of workpiece C, or the inner and outer surfaces (the surface facing spindle a and the opposite surface) are polished. Differences may occur.

In addition, the above-mentioned polishing machine usually requires driving energy of 60 horsepower or more, [a-energy is very high, and the workpiece has a shape with a relatively deep concave surface, such as a spoon or a ladle. If the thickness is 5 to 100 nn, there is a problem that the entire surface including the concave surface cannot be uniformly polished.

Furthermore, in the conventional polishing machine as shown in Japanese Patent Publication No. 37-17646, the flow direction of the media on the inner circumferential wall of the polishing tank is opposite to the direction of small revolution of the workpiece, and the media faces the workpiece. In such a polisher, the media does not flow smoothly on the surface of the workpiece, and especially when rotating at high speed, the polished surface tends to have small irregularities instead of stripes, making it difficult to obtain a clean polished surface.

The present invention was made in view of the above circumstances, and by causing the spindle to revolve and rotate, the workpiece attached to the spindle is rotated together with the revolution and rotation of the spindle, and the relative position of the workpiece with respect to the spindle is also controlled. By changing the grinding speed, the workpiece can be polished uniformly.

Another object of the present invention is to provide a dry type high-speed fluid polishing device which can uniformly polish the entire surface of a workpiece having a relatively deep concave surface, such as a spoon, including the concave surface, and can reduce driving energy.

[Means for solving problems]

In order to achieve the above object, the present invention includes a fixed gear and a planetary gear meshing with the fixed gear, and a spindle connected to the planetary gear by rotating the planetary gear while revolving around the fixed gear at a speed of 50 rpm or more. The dry media filled in the polishing tank is stirred by the rotation of the spindle, causing the dry media to flow at high speed, and the workpiece is polished by the abrasive agent attached to this high speed flowing dry media. A dry type high-speed fluid polishing apparatus, wherein the number of gears of the planetary gear is greater than the number of gears of the fixed gear, the spindle is formed into a cylindrical shape, and a rotating shaft is rotatably disposed within the spindle. At the same time, a rotation mechanism for rotating this rotating shaft is provided, a workpiece mounting jig is provided at the lower part of the rotating shaft, and a workpiece is mounted on this workpiece mounting jig so that the revolution speed of the spindle is greater than the rotational speed and the workpiece is fixed. is rotated together with the revolution and rotation of the spindle, and is also rotated around a workpiece mounting jig that rotates together with the rotation of the rotating shaft.

In this case, the workpiece mounting jig can have a gear fixed to the lower part of the rotating shaft, and can also be fixed to the rotating shaft via a gear that meshes with this gear.

In addition, as a mechanism for rotating the rotating shaft, a second
A planetary gear is attached, and this second planetary gear is meshed with a second fixed gear, so that the second planetary gear revolves around the second fixed gear while meshing with the second fixed gear, integrally with the revolution of the spindle. It is possible to adopt a mechanism in which the second planetary gear is caused to rotate on its own axis and the rotating shaft is rotated together with this rotation, or a mechanism is adopted in which a motor is attached to the rotating shaft and rotated.

[Effect]

The polishing apparatus of the present invention fills a dry media in a polishing tank, inserts a spindle and a workpiece supported by the spindle into the media, and rotates and rotates the spindle and the workpiece together with the spindle at high speed. The entire media is made to flow violently, and the surface of the workpiece is polished by the pressing action of the flowing media against the workpiece.

In this case, the media fluidized tank has a down cut on the peripheral wall side and an up cut on the center side.

Therefore, in the present invention, in such a polishing device,
A spindle is formed into a cylindrical shape, a rotary shaft is rotatably disposed within the spindle, a rotation mechanism is provided to rotate the rotary shaft, and a workpiece mounting jig is fixed to the lower part of the rotary shaft. Attach the workpiece to the workpiece mounting jig,
The workpiece is rotated in unison with the revolution and rotation of the spindle, and is also rotated about the workpiece mounting jig which rotates in unison with the rotation of the rotating shaft.

In other words, 1 the polishing apparatus of the present invention uses the media (as described above).
The flow of abrasive grains is carried out by the high-speed rotation of a spindle, and in this case, a relatively light media is used and is suitable for final polishing.
In this polishing device, the workpiece rotates around a fixed shaft integrally with the spindle, makes a small revolution around the spindle or rotating shaft, and rotates around the workpiece mounting shaft. In this way, the workpiece rotates together with the revolution and rotation of the spindle, and the workpiece also rotates separately from the rotation of the spindle.

Since the relative position of the workpiece to the spindle changes over time, the way the media hits the workpiece is made as even as possible, and the media hits only a certain part of the workpiece strongly or more, or conversely, the media hits only a certain part of the workpiece weakly or Since deflection such as small contact is prevented as much as possible, the work surface is polished uniformly and evenly.

Therefore, in the polishing method using the device of the present invention, since the workpiece itself rotates relative to the spindle, there is no need to change the posture of the workpiece and re-polishing after changing the posture as in the conventional method, and the polishing time is significantly reduced compared to the conventional method. (to 1/3 or less), and even if the polishing time is significantly shortened, the entire surface of the workpiece can be uniformly polished.

Furthermore, in the conventional dry high-speed fluid polishing apparatus such as that disclosed in Japanese Patent Publication No. 37-17646, the gear ratio between the fixed gear and the planetary gear is usually 7:1 to 5: process dust. The number of rotations is greater than the number of revolutions, so that while the spindle with the workpiece attached revolves around the center of the polishing tank once, the spindle itself rotates 7 to 5 times. Although it is.

Then, when polishing a workpiece with a concave surface with a depth of 5 to 100 mm, the concave surface remains unpolished, but the number of planetary gears is larger than that of fixed gears, and A relatively deep concave surface due to the number of rotations being smaller than the number of rotations.

For example, a workpiece having a concave surface of about 5 to 100 mm as described above can be polished uniformly over the entire surface including the concave surface, the finish of polishing the concave surface can be improved, and driving energy can be reduced.

Furthermore, according to the polishing apparatus of the present invention, the flow direction of the media near the inner circumferential wall of the polishing tank can be made to match the direction of small revolution of the workpiece, so the flow of the media on the workpiece surface becomes smooth, and the media flow Even with high-speed flow, the polishing surface provides a good finished surface with stripes, and the entire workpiece can be polished uniformly, and the force required for the spindle to rotate and revolve can be reduced.

Therefore, the device can be downsized and labor can be saved.

[First Embodiment] Hereinafter, one embodiment of the present invention will be described with reference to FIG.

In the figure, 1 is a polishing tank, and media 2 is filled inside this tank. 3 is a cylindrical box supported by a fuselage (not shown), and a gearbox 4 is housed within this cylindrical box 3. A cylindrical shaft 5 projects from the center of the upper wall 4a of the gearbox 4, and a ring-shaped drive pulley 6 projects from the upper end of the shaft 5. The cylindrical shaft body 5 is rotatably supported by bearings 8, 8 fixed to the cylindrical box 3 and a pedestal 7 placed thereon, respectively, and the pulley 6 is supported by belts 9, 9.
The pulley 6 is connected to a drive source M such as a motor via a drive source M, and the pulley 6 is rotated by the drive of the drive source M, and the cylindrical shaft body 5 and the gear box 4 are rotated together with the pulley 6. .

A fixed shaft body 10 is disposed within the cylindrical shaft body 5 . The upper end of this fixed shaft body 10 penetrates the drive pulley 6 and the ceiling plate 11 of the fuselage and projects upward, and this protruding upper end is fixed by a support 12 fixed on the ceiling plate 11, and The lower part of the shaft body 1o is the gear box 4
protrudes inward. At the protruding lower part of this fixed shaft body 10,
A disk-shaped first fixed gear 13 is fixed to the lower end thereof, and a ring-shaped second fixed gear 14 is fixed to a predetermined position above the first fixed gear 13.

Note that bearings 15 and 15 are provided at the upper and lower ends of the inner wall of the cylindrical shaft 5, respectively, so that the cylindrical shaft 5 can smoothly rotate relative to the fixed shaft. ing.

Further, the gear box 4 is provided with a ring-shaped partition wall 4b to partition the first and second fixed gears 13, 14, and bearings 16 fixed to the partition q4b and the lower wall 4c, respectively. , 16° 16', 16', respectively, two cylindrical spindles 17.
17' is provided. Note that these spindles 17
．． The lower portions of the gearboxes 17' penetrate the lower wall 4c of the gearbox and protrude downward, respectively. Said spindle 17.17
'A first planetary gear 18.18 that exists in the gear box 4 and meshes with the first fixed gear 13, respectively.
' is fixed, and when the gearbox 4 rotates, the spindle 17.17' rotates (revolutions along the first fixed gear 13) together with this rotation, and at this time, the first
The planetary gears l8, 18' rotate along the first fixed gear 13 while meshing with the first fixed gear 13, and the spindle 17, 17' rotates (rotates) together with this rotation. .

Here, the number of gears of the first planetary gears 18, 18' meshing with the first fixed gear 13 is greater than the number of gears of the first fixed gear 13, thereby increasing the revolution speed of the spindle 17, 17'. is formed so that it is larger than the rotation speed.

Inside the cylindrical spindle 17, 17' is a rotating shaft 19.
．． 19' are arranged rotatably. The upper ends of these rotating shafts 19 and 19' are the bearings 16 and 16 of the spindles l7 and 17' fixed on the partition u4b, respectively.
' and protrudes upward through the second
Second planetary gears 20 meshed with the fixed gears 14, respectively.
20' is fixed. In addition, the rotating shaft 19.19
The lower end of the spindle 17.17' is rotatably arranged in a gear case 21, 21' fixed to the lower end of the spindle 17.17'.
They are respectively fixed to upper bevel gears 22a and 22'a of a set (four) of bevel gears 22 and 22' that mesh with each other. These upper bevel gears 22a, 22'a
lateral bevel gears 22b, 22b, 22'b that mesh with the
22'b has workpiece mounting jigs 23, 23.23', 23
One end of the gear case 21 and 21' is fixed, and the other end projects laterally through the side walls of the gear case 21 and 21', and the workpiece 24 to be polished is attached to the projecting other end.
24, 24' and 24' can be detachably attached to each other. In addition, 25.25.25' in the figure
, 25' are bearings that rotatably support the rotating shafts 19 and 19', respectively.

Therefore, the rotation shaft 19.19' is connected to the second planetary gear 20.
．． 20' rotates (revolutions) along the second fixed gear 14 while meshing with the second fixed gear 14, and rotates (rotates) together with this rotation, and these rotating shafts 19.1
Bevel gear 22 at 9'. 22' workpiece mounting jig 23
, 23, 23', 23', and the workpieces 24, 24, 24', 24' attached thereto are rotated.

Although the polishing tank 1 is not shown in FIG. 1, it can be moved vertically by, for example, the mechanism described in Japanese Patent Publication No. 37-17646, or any other appropriate mechanism, and the polishing tank 1 shown in FIG. At the ascent limit position, the workpieces 24, 24
．． 24', 24' are embedded in the media 2 in the polishing tank 1, and at the lower limit position of the polishing tank 1, the workpieces 24, 24, 24', 24' are taken out from the media 2, and the workpieces are removed from the media 2. 24.24.24', 24' can be attached and detached.

Next, a method of dry high-speed fluid polishing of a workpiece using the polishing apparatus described above will be explained.

First, the polishing tank 1 is moved to the lower limit position, and the fabric media 2 is put into the polishing tank 1. in this case.

As for media, organic media, especially wood media,
For example, wood chips, small pieces of wood, corn, and nuts.

Granules and powders such as peels are excellent, and the amount of media input is preferably about 60 to 90% of the capacity of the polishing tank. Next, an abrasive in the form of liquid, paste, or powder made by mixing oil and fat with abrasive grains is added to the media 2, and the workpieces are not attached to the workpiece mounting jigs 23, 23° 23', 23'. Move the polishing tank 1 to the upper limit position,
By driving the drive source M connected to the pulley 6 and rotating the pulley 6, the spindles 17, 17', etc. are rotated (revolution and rotation), thereby the media 2 flows, and the media 2 and the abrasive are uniformly mixed, and the abrasive adheres to the surface of the media 2.

In this case, the amount of abrasive added is 1k of media at the beginning of the work.
It is preferable to use 40 to 80 g per kg of media, and then 0.2 to 1 g per 1 kg of media for each polishing operation, and it is usually sufficient to mix the media and abrasive for 3 to 5 minutes. .

Next, after stopping the driving of the drive source M and moving the polishing tank 1 to the lowering limit position, the workpiece mounting jig 23°23.23',
Attach the workpieces 24, 24, 24', and 24' to 23' and move the polishing tank 1 to the upper limit position again (the state shown in Fig. 1). In this state, drive the drive source M to move the pulley 6. When rotated, the cylindrical shaft 5 and the gearbox 4 rotate together with this rotation, so that the spindle 17, 17' mounted in the gearbox 4 moves into the shaft 5.
The spindle 1 rotates (revolutions) around the central axis (axis of the fixed shaft 10), and along with this rotation (revolutions) the spindle 1
1st planetary gear 18.18' attached to 7°17'
rotates (revolutions) along the first fixed gear 13 while meshing with it, so that the spindles 17, 1
7' rotates on its own axis, a rotating shaft 19.19' rotatably attached to spindles 17, 17', and a bevel gear 22.2.
2', workpiece mounting jigs 23, 23° 23', 23' and these mounting jigs 23, 23, 23'.

Work 24, 24.24' attached to 23'.

24' rotates in great revolution and small revolution together with the revolution and rotation of spindle 17 and 17'. In this case, the first planetary gear 18
．． 18' is greater than the number of gears of the first fixed gear 13, the revolution speed of the spindle 17, 17' is greater than the rotation speed, and therefore the great revolution speed of the works 24, 24° 24', 24' is greater than the small revolution speed. It is something.

Furthermore, along with the above rotational movement, the rotation axis 19°19'
The second planetary gear 20°20' fixed to these rotates (revolutions) along the second fixed gear 14 while meshing with it.
As a result, the upper bevel gear 22a rotates (rotates) together with this rotation, and is therefore fixed to these rotating shafts 19 and 19'.

22'a, lateral bevel gears 22b, 22b, 22'b meshed with these upper bevel gears 22a, 22'a.

22′b, workpiece mounting jig 23°2 fixed to these
3. Workpieces 24 and 24°2 are sequentially passed through 23' and 23'.
4', 24' are workpiece mounting jigs 23, 23, 23'.

23' (in a direction perpendicular to the rotation direction of the rotating shaft 19, 19').

Here, the driving of the drive source M is switched between forward and reverse directions at predetermined time intervals, thereby switching the above-mentioned rotation between forward and reverse directions at predetermined time intervals.

Therefore, the works 24, 24, 24', 24' rotate in forward and reverse directions (great revolution and small revolution) and these spindles 17.1
For example, the workpieces 24, 24, 24 in FIG.
The lower end of ', 24' is the workpiece mounting jig 23, 23.
', 23' moves its position to the upper end as it rotates,
Workpiece 24, 24, 2 for spindle 17.17'
The relative positions of 4' and 24' gradually change. During these rotations, the works 24, 24, 24', and 24' come into contact with the media stirred into a fluid state by these rotations in a mixed state, and the surfaces of the media are polished by the action of the abrasive on the media surface. However, work 24,2
4.24' and 24' rotate around the central axis of the cylindrical shaft body 5 and the central axis of the spindle 17°17', respectively, with the great revolution speed being higher than the small revolution speed, as described above. , workpiece mounting jig 23, 23, 23'
, 23' rotates around the axis of spindle 17.17
By changing the relative position to ', the surface can be polished uniformly.

After polishing, the drive source M is stopped, the polishing tank 1 is moved to the lowering limit position, the polished workpiece is removed, new abrasive is added to the media, and the above-described operations are repeated.

In the polishing method described above, the number of rotations of the pulley 6, therefore the cylindrical shaft 5 and the gearbox 4, i.e. the spindle 17
．． The number of revolutions of 17' is not necessarily limited, but 5Qrp
m or more, preferably 50 to 500 rpm, especially 100 to 4
It is preferable to set it as 00 rpm. Also, spindle 1
7.17' rotation speed is also not limited, but 50-800r
pm, preferably 100 to 400 rpm, more preferably 1
50-300rpm.

In particular, it is preferable to set the rotation speed to 200 to 300 rpm, and the rotational speed of the workpiece mounting jigs 23, 23.23', 23' (
Therefore, the number of rotations of the workpieces 24, 24, 24', 24' is not limited, but is preferably 1 to 200 rpm, preferably 1 to 200 rpm.
pm, particularly preferably from 1 to 50 rpm, and the first
and second fixed gears 13, 14, first and second planetary gears 1
It is preferable to appropriately select the number of gears of 8.18', 20.20', and bevel gear 22.22' to achieve the above-mentioned rotation speed.

The above-mentioned polishing machine rotates the planetary gear along its axis at a speed of 50 rpm or more, thereby causing the spindle connected to the planetary gear to revolve and rotate, thereby removing the workpiece attached to the spindle. is rotated, and the dry media filled in the polishing tank is agitated by the rotation of the spindle and the workpiece, thereby causing the dry media to flow at high speed, and the workpiece is polished by this high-speed flowing dry media. However, the movement of the work is that it makes a major revolution around a fixed shaft integrally with the spindle, a small revolution around the spindle or rotating shaft, and further rotates around the work mounting shaft. In this way, the workpiece rotates together with the revolution and rotation of the spindle, and also rotates separately from the rotation of the spindle, and the relative position of the workpiece to the spindle changes over time. The media hits the surface as evenly as possible, and the work surface is polished uniformly.

Moreover, in this case, in this polishing apparatus, the first rlf
The number of first planetary gears 18, 18' (7) is larger than that of the i constant gear 13, and the revolution speed of the spindle 17.17' is made larger than the rotation speed of the spindle 17.17'.
By making the rotational speed of 24', 24' relative to the center axis of the shaft body 5 greater than the rotational speed relative to the spindle 17. For certain workpieces such as spoons and ladles, the entire surface including the concave surface can be satisfactorily polished without the inconvenience of leaving polishing residue on the concave surface. In this case, in order to effectively achieve such effects, the gear ratio between the first fixed gear 13 and the first planetary gear 18,18' should be set to 1=1.
2 to 1:4, preferably 1:1.2 to 1:3, especially 1
: 1.5 to 1 : 2.5 is preferable.

Furthermore, in the polishing method described above, the flow direction of the media near the inner circumferential wall of the polishing tank matches the direction of small revolution of the workpiece, so the flow of the media on the workpiece surface is smooth and the media can flow at high speed. The polished surface gives a good finished surface with stripes, and the entire workpiece can be polished evenly, and the spindle rotates on its own axis.

The force required for revolution can be reduced, and therefore the device can be downsized and labor can be saved.

In the above polishing method, the drive of the drive source M is switched between forward and reverse at predetermined intervals, thereby switching the rotational movement between forward and reverse. However, the present invention is not limited to this, and rotation in only one direction is possible. The polishing may also be performed by. However, from the point of view of uniform polishing, it is preferable to rotate in the forward and reverse directions.In this case, it is preferable to switch the forward and reverse rotation once every 2 to 5 minutes and reverse the rotation once every 2 to 5 minutes. 1st year of junior high school
It is preferable to do this twice.

Furthermore, in the above-mentioned fluidized polishing method, an abrasive agent mixed with a small amount of oil and abrasive grains is added to the cloth media as an abrasive material every cycle of the polishing operation, and the surface of the media is coated with the abrasive agent during a preliminary operation. By coating the media, you can simply add abrasive when the media loses its abrasive power, so there is no need to replace the entire media.
This simplifies the overall operability. In this case, when coating the media with the abrasive, the spindle etc. revolve and rotate, which fluidizes the media and mixes the media and the abrasive evenly and reliably. Since the abrasive agent promotes the action of coating the media with the abrasive, the media can be coated with the abrasive easily and in a short time (usually 3 to 5 minutes). Also,
According to such a polishing method, the media is coated with new abrasive agent every cycle (one polishing operation).
Good polishing is achieved. Furthermore, by adopting this method,
Running costs are significantly reduced.

However, without adopting this method of adding abrasive,
It is also possible to use media whose surface is coated with oil and abrasive grains, and replace the entire media when its abrasive power decreases.Also, as the first media to be introduced, media whose surface has been coated with oil and abrasive grains may be used. From now on, use Ken 1! It is also possible to use a method in which an S agent is introduced.6 Note that conventionally known media, oils and fats, abrasive grains, etc. can be used. For example, the oils used include animal and vegetable mineral oils, various fatty acids, waxes, metal soaps, and various resins, and the abrasive grains used include alumina,
Silica stone, iron oxide, chromium oxide, alundum.

WA, calcium carbonate, etc. can be used.

[Second Embodiment] FIG. 2 shows another embodiment of the device of the present invention. In this embodiment, the first fixed gear 13 and the first planetary gears 18 and 18' that mesh with the first fixed gear 13 are arranged in a gear box. 4, the second fixed gear 14 and the second planetary gear 2 meshing with the second fixed gear 14;
0.20' is placed outside the gearbox 4.

That is, the gearbox 4 is not provided with a partition wall, and the upper bearings 16.16' that rotatably support the cylindrical spindles 17.17' are fixed to the upper wall 4a of the gearbox 4, and the spindles 17.17' The upper end of the rotating shaft 19.19' rotatably disposed within the upper bearing 16.
16' and protrudes upward, a second planetary gear 20, 20' is fixed to the upper end of this protrusion, and a ring-shaped second
A fixed gear 14 is fixed to the lower part of the cylindrical shaft body 5 and meshed with the second planetary gear 20, 20'. Further, spur gears 26a and 26'a housed in a gear case 21.21' are fixed to the lower end of the rotating shaft 19.19', and spur gears 26b and 26' are attached to the spur gears 26a and 26'a, respectively.
6b.

26'b and 26'b are engaged, and the rotating shaft 19°1 is attached to these.
Workpiece mounting jig 23°23.2 in the same direction as the axial direction of 9'
3' and 23' are fixed.

In the embodiment shown in FIG. 2, the workpieces 24, 24, 24', 24' are connected to the cylindrical shaft body 5, as in the embodiment shown in FIG.
(the central axis of the fixed shaft 10) and the central axis of the spindle 17.17', and the rotation of the shaft 5 meshes with the second fixed gear 14 fixed to the shaft 5. The second planetary gear 20.20' rotates (rotates), and the rotating shaft 19.19' and the spur gears 26a, 26'a fixed thereto rotate integrally with it. Spur gear 26b meshed with a.

26 b, 26'b, 26'b, and the workpiece mounting jigs 23, 23, 23', 23' fixed to these rotate, and therefore the workpieces 24, 24.24', 24' are the workpiece mounting jigs. 23, 23. 23', 23' rotates around the central axis of the workpiece 24, 23', and gradually changes the relative position relative to the spindle 17, 17'. Therefore, also in the embodiment shown in FIG. 24. 24', 24' are polished uniformly.

[Third Embodiment] FIG. 3 shows another embodiment of the present invention. In the apparatus according to this embodiment, the second fixed gear and the second planetary gear are not provided, and one rotating shaft 19. A motor 27, 27' such as a gear motor is directly attached to the protruding upper end of the rotating shaft 19.
By rotating these rotation axes 19.19'
The workpieces 24, 24, 24', 24' attached to the spindle 17, 17' are rotated to change their relative positions with respect to the spindle 17, 17'. In this case, a speed reduction device may be provided in connection with the motors 27, 27'. Furthermore, in the embodiment shown in FIG.
．． Workpiece mounting jigs 23, 23, 23', 23' are directly attached to the lower end of 19' without using gears, and the workpieces 24, 23', 23', 23', 24. 24', 24' are detachably attached. In addition, in the embodiment shown in FIG.
A ring-shaped pressure intensifying cover unit 30 having a triangular cross section and having a triangular cross section 8 and an inclined part 29 is removably provided with a bolt or the like. The media 2 near the inner circumferential wall of the polishing tank 1 is prevented from rising beyond the cover unit 30, and this causes the cover unit 30 to increase the pressure, pushing the media 2 towards the workpieces 24°24.24', 24. The workpieces can be polished more effectively by ensuring pressure contact with the workpieces. Furthermore, in FIG. 3, 31 is an air blowing pipe.

Reference numeral 32 denotes a dust collecting pipe, and air is introduced from the air blowing pipe 31 when necessary, and dust particles from damaged media, polishing waste, etc. can be discharged from the dust collecting pipe 32.

The other configurations and effects in FIGS. 2 and 3 are the same as those in the embodiment shown in FIG. 1, so the same reference numerals as in FIG. 1 are used, and the explanation thereof will be omitted.

In addition, although the number of spindles was two in the above-mentioned embodiment, the number of spindles is not limited.Also, in the above-mentioned embodiments, the spindle rotating shaft is a single integrated structure, but the present invention is not limited to these. Instead, for example, as shown in FIG. 4, a two-axis configuration including an upper spindle 17a and a lower spindle 17b, and an upper rotating shaft 19a and a lower rotating shaft 19b may be used, and these may be connected to each other.

Further, in this case, the lower spindle 17b, the lower rotating shaft 19
b can be detachably connected to each other. Furthermore,
As shown in FIG. 5, intermediate gears 36, 36', 37, 37' may be meshed between the fixed gear 13, 14 and the planetary gears 18, 18', 20, 20', respectively.
Note that 38° 38' and 39.39' in FIG. 5 are fixed to the partition wall 4b and upper wall 4a of the gearbox 4, respectively.
The gist of the present invention also applies to other configurations. Various changes may be made without departing from the above.

〔Effect of the invention〕

According to the present invention, the workpiece rotates together with the revolution and rotation of the spindle, the workpiece also rotates separately from the rotation of the spindle, and the relative position of the workpiece with respect to the spindle changes over time. The way the media hits the surface of the workpiece is made as even as possible, and deflections such as the media hitting only a certain part of the workpiece strongly or more, or conversely the media hitting weakly or less often are prevented as much as possible, so the workpiece surface is uniform. , evenly polished.

Furthermore, by increasing the number of gears in the planetary gear than in the fixed gear, and by making the spindle's rotation speed slower than its revolution speed, rather restricting changes in the posture of the workpiece at this point, it is possible to convert the workpiece with a relatively deep concave surface into a concave surface. It is possible to polish the entire surface uniformly, including the workpiece, and the polishing finish on concave surfaces of the workpiece can be greatly improved.
Moreover, driving energy can be reduced.

Moreover, by stirring the dry media filled in the polishing tank by the rotation of the spindle and the workpiece, the dry media can be flowed at high speed so that the flow direction near the inner circumferential wall of the polishing tank coincides with the small revolution direction of the spindle and the workpiece. This allows the media to flow smoothly over the workpiece surface, giving a good finished surface with striped surfaces even when the media is flowing at high speed, allowing the entire workpiece to be uniformly polished, and the spindle The force required for rotation and revolution can be reduced, and the device can therefore be downsized and labor can be saved.

[Brief explanation of the drawing]

1 to 5 are schematic cross-sectional views showing one embodiment of the present invention, and FIG. 6 is a plan view illustrating the rotating state of a workpiece attached to a conventional spindle. 1... Polishing tank, 2... Media, 5-- Shaft body, 10
...Fixed shaft body, 13...First fixed gear, 14...
Second fixed gear, 17.17', 17 a, 17 b - spindle. 18.18'...First planetary gear, 19.19', 19 a, 19 b --- Rotating shaft. 20.20'...Second planetary gear, 23.23'...Jig for workpiece installation, 24.24'
...Work, 27, 27'...Motor.

Claims (1)

[Scope of Claims] 1. A device comprising a fixed gear and a planetary gear that meshes with the fixed gear, and by rotating the planetary gear around its axis while revolving along the fixed gear at a speed of 50 rpm or more, a spindle connected to the planetary gear is revolved. The dry media rotates on its own axis, and the dry media filled in the polishing tank is agitated by the rotation of the spindle, thereby causing the dry media to flow at high speed, and the workpiece is polished by the abrasive adhering to this high speed flowing dry media. A high-speed fluid polishing device, wherein the number of gears of the planetary gear is greater than the number of gears of the fixed gear, the spindle is formed into a cylindrical shape, and a rotating shaft is rotatably disposed within the spindle, A rotation mechanism for rotating the rotating shaft is provided, a workpiece mounting jig is provided below the rotating shaft, a workpiece is mounted on the workpiece mounting jig, and the revolution speed of the spindle is made larger than the rotational speed;
A dry high-speed fluid polishing apparatus characterized in that the workpiece is rotated together with the revolution and rotation of the spindle and rotated around a workpiece mounting jig that rotates together with the rotation of the rotating shaft. 2. Attach a second planetary gear to the rotating shaft, mesh the second planetary gear with the second fixed gear, and rotate the second planetary gear around the second fixed gear integrally with the revolution of the spindle. 2. The device according to claim 1, wherein the second planetary gear rotates on its own axis by causing the second planetary gear to revolve while meshing with the second planetary gear, and the rotating shaft is rotated integrally with this rotation. 3. The device according to claim 1, wherein a motor is attached to the rotating shaft to rotate the motor.