JPH07246556A - Polishing device - Google Patents

Abstract

PURPOSE:To manage the abrasive grain surface easily by winding the abraded part resulting from the polishing by a polishing tape wound on the outer periphery of a rotary drum, by a reel for winding, and delivering a new part in order by a reel for delivery. CONSTITUTION:An end plate 12 is removed from a tube body 11, a reel 7 for delivery to which a tape 4 is wound is set to the end plate 12, and the reel 7 is housed in the tube body 11. A reel 8 for winding is set to an end plate 13. The tape 4 is delivered from the reel 7 for delivery, it is pulled out from a slit 11a for tape of the tube body 11, and after winding it on a rotary drum 3 in the spiral form, it is pulled in to the tube body 11 from a slit 11b for tape, and installed to the reel 8 for winding. The rotary drum 3 is rotated, the rotary drum 3 is positioned to the hole of an article 5 with hole which is held by an article holding means, and the inner surface of the article 5 is polished. In this case, the tape 4 is moved from the delivery reel 7 to the winding reel 8, and the abrading part is to be converted to a new part constantly.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a polishing device, and more particularly to a polishing device for polishing a wall surface of a hole of a perforated article.

[0002]

2. Description of the Related Art For example, when polishing a wall surface of a hole of a perforated article such as a gear, a pulley or a sprocket (a part of a gear, a pulley or a sprocket where an axis fits, that is, a wall surface of a boss), the diameter of the hole has been conventionally used. Using a cylindrical or disk-shaped grindstone made of foamed synthetic resin with an outer diameter smaller than this, rotate this wheel while pressing it against the wall surface of the boss, while rotating the gears etc. independently of the grindstone. A polishing apparatus for polishing by such a method is used.

[0003]

However, this polishing apparatus has the following problems.

That is, the grindstone in this polishing apparatus is
If you try to polish a lot of articles with one whetstone, it will wear out as you grind.
There is an inconvenience that the quality of the polished surface deteriorates with the progress of polishing. In order to solve this problem, the life of the grindstone should be empirically managed and the grindstone should be replaced frequently, but such management and replacement work was very troublesome.

The present invention has been made in view of the above points, and an object of the present invention is to provide a polishing apparatus capable of constantly uniformly polishing the wall surface of the hole of the perforated article and easily controlling the abrasive grain surface. .

[0006]

A polishing apparatus of the present invention is a polishing apparatus for polishing a wall surface of a hole of a perforated article with a tape having fixed abrasive grains carried on the surface thereof, which is held by being wound. And a winding reel for winding the tape fed from the feeding reel, a rotary drum in which both reels are detachably installed, and the rotary drum is rotated. A polishing machine having a motor and a motor for rotating the winding reel, wherein the middle part of the tape wound around the reels is wound around the outer peripheral surface of the rotating drum. A chuck for fixing the perforated article, a motor for rotating the chuck, and the tape on the wall surface of the perforated article fixed to the chuck. In which and a pressing means for pressing. Further, in the polishing apparatus of another invention, the pressure contact means is constituted by a cylinder device.

[0007]

According to the above-mentioned means, the worn part can be wound up by the take-up reel, while new parts can be successively taken out and polished by the take-up reel. Can always be homogenous. In this case, if the pressure contact means for pressing the tape against the wall surface of the hole of the perforated article fixed to the chuck is a cylinder device, the pressure of the fluid in the cylinder device is simply kept constant, and the wall surface and the tape are Since the pressure contact force of is always constant, better polishing can be performed.

Further, according to the above-mentioned means, it is not necessary to replace the entire tape until the tape wound around the feeding reel is completely used. Therefore, if the winding amount of the tape on the feeding reel is increased, it becomes unnecessary to frequently replace the entire tape. Further, it is also possible to very easily detect the remaining amount of the tape wound around the feeding reel. For example, whether or not the tape wound around the take-up reel has run out can be easily known by detecting the current value flowing in the drive circuit of the motor that rotates the take-up reel. Therefore, tape management can be performed extremely easily.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A polishing apparatus according to an embodiment of the present invention will be described below with reference to the drawings.

First, the outline of the polishing apparatus of the first embodiment is shown in FIG.
The polishing apparatus 1 is configured to polish the wall surface of the hole of the perforated article 5 with the tape 4 wound around the rotary drum 3 of the polishing machine 2.
As shown in the cross-sectional view of FIG. 2, the polishing apparatus 1 comprises a polishing machine 2 and an article holding means 6 for holding a perforated article 5.

The polishing machine 2 includes a rotary drum 3, a feeding reel 7 (FIG. 3) and a winding reel 8 (FIG. 3) installed in the rotary drum 3, and a motor 9 for rotating the rotary drum 3. And a motor 1 for rotating the take-up reel 8
It has 0 and. And in this polishing machine 2,
The tape 4 delivered from the delivery reel 7 is once guided to the outside of the rotating drum 3 and wound around the outer peripheral surface of the rotating drum 3 in a spiral shape, and then again introduced to the inside of the rotating drum 3 to be wound. The take-up reel 8 is adapted to be wound up.

Now, the tape 4 will be described. As shown in FIG. 4, the tape 4 has a fixed abrasive 4c bonded to a tape base 4a via an adhesive 4b. The tape 4 is wound around the feeding reel 7 so that the surface on which the fixed abrasive grains 4c are formed is on the outside. As the tape 4, although not shown, it is of course possible to use a tape base material coated with a coating material containing fixed abrasive grains.

Next, the details of the rotary drum 3 will be described.
As shown in FIG. 3, the outer shell of the rotary drum 3 is a cylindrical body 1.
1 and end plates 12 and 13 for closing each end of the tubular body 11, and the end plate 13 is provided with a sleeve 13a. The sleeve 13a is screwed to the rotary shaft 14, and the rotary shaft 14 is connected to the motor 9 via a winding transmission mechanism 15 including pulleys 15a, 15a and a belt 15b, as shown in FIG. Therefore, when the motor 9 is driven, the rotary drum 3 rotates via the winding transmission mechanism 15 and the rotary shaft 14. In FIG. 2, reference numeral 16 indicates a bearing that supports the rotary shaft 14.

As shown in FIG. 3, a reel shaft 18 is supported on the sleeve 13a via bearings 17,17. The reel shaft 18 has a winding reel 8
Is attached. The winding reel 8 is fixed to a reel shaft 18. The reel shaft 18 is the motor 10
Is keyed to the shaft 10a. The shaft 10 a extends through the rotary shaft 14 and is configured to be rotatable independently of the rotary shaft 14. Further, in order to prevent the take-up reel 8 from falling off the reel shaft 18, after the take-up reel 8 is fitted to the reel shaft 18, the pressing plate 20 is screwed to the reel shaft 18. In FIG. 2, reference numeral 19 indicates a bearing that supports the shaft 10a.

On the other hand, on the end plate 12, as shown in FIG.
A reel shaft 22 is provided inside thereof. Then, the reel reel 7 is attached to the reel shaft 22 so as to idle. The reel shaft 2 of the reel 7 for feeding out
In order to prevent the reel 7 for feeding from being disengaged from the reel 2, the pressing plate 21 is attached to the reel shaft 22 after the reel 7 for feeding is fitted to the reel shaft 22.
Is screwed on.

Further, as shown in FIG.
10 and the winding transmission mechanism 15 are housed in a mechanical box 41. The mechanical box 41 is configured to run on two rails 42, 42. On the other hand, the mechanical box 41 is fixed to the tip of the plunger 23a of the air cylinder device (pressing means) 23 whose base is fixed to the fixing portion 26. Therefore, the mechanism box 41 moves on the rails 42, 42 by the operation of the plunger 23a. The moving direction of the mechanical box 41 in this case is a direction in which the rotary drum 3 is moved toward and away from the wall surface of the hole of the perforated component 5.

The peripheral wall of the cylindrical body 11 is shown in FIGS.
As shown in FIG. 5, tape slits 11a and 11b are respectively provided, and the tape 4 fed from the feeding reel 7 is pulled out from the tape slit 11a, is once guided to the outside of the rotary drum 3 and wound in a spiral shape. The tape can be guided to the inside of the rotary drum 3 again through the tape slit 11b and taken up by the take-up reel 8.

Next, the article holding means 6 shown in FIG. 2 will be described. The article holding means 6 comprises a chuck 24 for holding the perforated article 5 and a motor 25 for rotating the chuck 24. There is. The chuck 24 is composed of a tubular main body 24a and a ring-shaped presser plate 24b screwed to the end of the main body 24a on the opening side. The punched article 5 is provided between the main body 24a and the presser plate 24b. It is designed to sandwich. On the other hand, the shaft 25a of the motor 25
The shaft 24c of the chuck 24 is screwed to the shaft. Therefore, when the motor 25 is driven, the chuck 24 and thus the perforated article 5 also rotate.

Although not shown, means (for example, a cylinder device) for bringing the polishing machine 2 and the article holding means 6 close to and away from each other is provided.

Next, a method of using the polishing apparatus 1 of this embodiment will be described.

First, the end plate 12 is removed from the tubular body 11, and the reel reel 22 on which the tape 4 is wound is set on the reel shaft 22 of the end plate 12. On the other hand, the end plate 13
The winding reel 8 is set on the reel shaft 18. Then, the tape 4 is delivered from the delivery reel 7, the tip of the tape 4 is pulled out from the tape slit 11a of the cylindrical body 11, and the tape is wound around the rotary drum 3 in a spiral shape.
It is guided to the inside of the rotary drum 3 again through the tape slit 11b of the cylindrical body 11 and attached to the winding reel 8. Next, the end plate 12 is attached to the tubular body 11, and the motor 1
Drive 0 to remove slack in tape 4. On the other hand, the perforated article 5 is attached to the article holding means 6.

Next, by means not shown, the polishing machine 2
And the article holding means 6 are brought close to each other, and the rotary drum 3 is inserted into the hole of the perforated article 5. Then, the air cylinder device 23
Then, the rotary drum 3 of the polishing machine 2 is moved toward the wall surface of the hole of the perforated article 5, and the tape 4 wound around the outer periphery of the rotary drum 3 is pressed against the wall surface. In this pressure contact, it is preferable that the rotating drum 3 be rotated by driving the motor 9 and the tape 4 be moved by driving the motor 10. Also, the rotating drum 3
The rotating direction of the tape and the moving direction of the tape 4 are not particularly limited, but are different directions here.

In this way, the tape 4 is brought into contact with the wall surface of the perforated article 5 to perform polishing. In this case, perforated article 5
The perforated article 5 is rotated at a low speed in order to move the abraded portion of (1) toward the inner peripheral surface of the hole.

According to the polishing apparatus 1 thus constructed, the worn portion of the tape 4 can be wound up by the winding reel 8 while a new portion is successively fed out by the feeding reel 7 and polished. As a result, the quality of the wall surface of the hole can be constantly made constant between the articles. In this case, since the tape 4 is brought into pressure contact with the wall surface of the hole of the perforated article 5 fixed to the chuck 24 by the air cylinder device 23, it is only necessary to keep the air pressure in the air cylinder device 23 constant. Therefore, the pressure contact force between the wall surface and the tape 4 is always constant, and better polishing can be performed.

Further, it is not necessary to replace the entire tape 4 until the tape 4 wound around the feeding reel 7 is completely used. Therefore, the tape 4 on the reel 7 for feeding out
If the winding amount is increased, it is not necessary to frequently replace the entire tape 4. Further, since it is easy to detect the remaining amount of the tape 4 wound around the feeding reel 7, it is possible to manage the tape, and thus the abrasive grain surface, very easily.

FIG. 5 is an external perspective view of the main part of the polishing machine in the polishing apparatus of the second embodiment, and FIG. 6 is a vertical sectional view of the main part. Since this polishing machine 30 has substantially the same configuration as the polishing machine 2 of the first embodiment, the same reference numerals will be used for corresponding parts or corresponding parts, and detailed description thereof will be omitted.

This grinder 30 is particularly suitable for punching thin-walled parts 5.
The rotary drum 31 is suitable for polishing
It is composed of a cylinder 33 with an end plate 32 and a lid 34 that closes the opening of the cylinder 33. Of these, the end plate 32 of the cylindrical body 33 is attached to the shaft 9 a of the motor 9. On the right side of the cylindrical body 33, another motor 1
The shaft 10a of the motor 10 extends through the end plate 32 of the tubular body 33 and extends to the inside of the tubular body 33, as shown in FIG. The winding reel 8 can be set on the shaft 10a. A shaft 35 is erected on the end plate 32 of the cylindrical body 33.
The reel 7 for feeding can be set.

Further, as shown in FIG. 5, a tape slit 36 cut in the longitudinal direction of the cylindrical body 33 is formed on the outer peripheral portion of the cylindrical body 33. The tape 4 can be led out and introduced from the tape slit 36. Further, inside the cylindrical body 33, a tension roller 37 and a pressing roller 38 are attached. Then, the tension roller 37 or the pressing roller 3
By counting the number of rotations of 8, the feeding amount of the tape 4 can be controlled and the remaining tape amount can be detected.

In the polishing machine 30, the tape 4 delivered from the delivery reel 7 is passed through the tape slit 36 and wound around the outer peripheral surface of the rotary drum 31 almost once along the circumferential direction. After that, the tape is again passed through the tape slit 36 and wound by the winding reel 8. A rubber material 40 is baked on the outer peripheral surface of the rotary drum 31 along the circumferential direction thereof. The rubber material 40 functions to bring the tape 4 into close contact with the wall surface of the hole of the perforated component 5 by its cushioning action.
Although not shown, the polishing apparatus includes a chuck, a motor for rotating the chuck, a pressing means for pressing the tape 4 against the wall surface of the hole of the perforated article 5, a polishing machine 2, and an article holding means 6. It is provided with a means (for example, a cylinder device) for approaching and separating.

Next, a method of using the polishing apparatus 1 of this embodiment will be described.

First, the lid 34 is removed from the tubular body 33, and the reel 7 for feeding the tape 4 wound thereon and the empty reel 8 for winding are set in the tubular body 33. Then, the tip of the tape 4 wound around the reel 7 for delivery is set to the cylindrical body 33.
Pull out from the tape slit 36 of the rotary drum 31
After being wound about once, the tape is attached to the winding reel 8 through the tape slit 36 of the cylindrical body 33.

Next, the lid 34 is attached to the cylindrical body 33,
The motor 10 is driven to loosen the tape 4, and the motor 10 is stopped. When starting the polishing of the perforated component 5, the position of the rotary drum 31 is set in advance (for example) at the left end of the tape 4 by means not shown.
The wall surface of the hole of the perforated component 5 is pressed into contact.
In this state, polishing is performed while rotating the rotary drum 31 by the motor 9. During the polishing, the rotary drum 31 is moved to the left by a means (not shown) so that the polishing portion of the tape 4 moves in the width direction of the tape 4. Then, the punched component 5 is polished with a new portion of the tape 4 in the width direction. The width of a unit with a hatched portion in FIG. 8 is the tape width required for polishing the outer peripheral portion of one perforated component 5. In this way, if the rotary drum 4 is moved to the left and the polishing portion of the tape 4 is moved in the width direction of the tape 4, the plurality of perforated parts 5 are polished using the same surface of the tape 4. , The width direction of the tape 4 can be effectively used. In addition, when the tape 4 is used up in the entire width direction, the rotary drum 31 itself is moved to the original position again, and the motor 10 is driven to move the tape 4 by one turn to expose a new surface.
The motor 10 may be stopped and the same operation as described above may be repeated.

According to the polishing apparatus 1 thus constructed, not only the effects of the first embodiment but also the reel 7 for delivery are provided.
Since the take-up reel 8 and the take-up reel 8 are provided in one plane orthogonal to the drum rotation axis, the reels 7 and 8 can be easily attached and detached.

Although the embodiments made by the present inventor have been described above, it is needless to say that the present invention is not limited to these embodiments and various modifications can be made without departing from the scope of the invention.

For example, in the first embodiment, the air cylinder device 23 is used as the pressure contact means, but it goes without saying that a pressure contact means such as a hydraulic cylinder device or a spring may be used.

[0036]

According to the present invention, there is provided a polishing apparatus for polishing the wall surface of a hole of a perforated article with a tape having fixed abrasive particles carried on the surface thereof, and the tape held and fed out is fed out. A reel for reeling out, and a reel for winding up the tape reeled out from the reel for reeling out,
The reel has a rotating drum in which the reels are detachably installed, a motor that rotates the rotating drum, and a motor that rotates the winding reel, and the middle of the tape wound around the reels. The part includes a grinder configured to be wound around the outer peripheral surface of the rotating drum, and a chuck for fixing the perforated article, a motor for rotating the chuck, and a chuck fixed to the chuck. With the pressure contact means for pressing the tape against the wall surface of the perforated article, the quality of the wall surface of the hole can be always made uniform between the articles, and
The abrasive grain surface, and thus the tape life, can be easily controlled. Further, when a cylinder device is used as the pressure contact means for pressing the tape against the wall surface of the hole of the perforated article fixed to the chuck, the pressure of the fluid in the cylinder device is kept constant, and the wall surface and the tape are Since the pressure contact force is always constant, better polishing can be performed.

[Brief description of drawings]

FIG. 1 is a schematic configuration diagram of a polishing apparatus according to a first embodiment.

FIG. 2 is a plan view of the polishing apparatus according to the first embodiment.

FIG. 3 is a vertical cross-sectional view for explaining a part of the configuration of the polishing machine according to the first embodiment.

FIG. 4 is a schematic configuration diagram of a tape.

FIG. 5 is an external perspective view of the main part of the polishing machine according to the second embodiment.

FIG. 6 is a cross-sectional view of the main part of the polishing machine according to the second embodiment.

FIG. 7 is a left side view of FIG. 6 in a state in which a lid of the rotary drum according to the second embodiment is removed.

FIG. 8 is a diagram showing an example of how to use a tape in the second embodiment.

[Explanation of symbols]

 1 Polishing device 2,30 Polishing machine 4 Tape 5 Hole-piercing parts 3,31 Rotating drum 7 Reel for feeding 8 Reel for winding 9,10,25 Motor

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Yasushi Kuroda 150 Odaira, Odakura, Saigo-mura, Nishishirakawa-gun, Fukushima Prefecture Shin-Etsu Semiconductor Co., Ltd. Semiconductor Shirakawa Laboratory

Claims (2)

[Claims] 1. A polishing device for polishing a wall surface of a hole of a perforated article with a tape having fixed abrasive particles carried on the surface thereof, and a reel for feeding, which reels out a tape held by winding, A winding reel that winds the tape fed from the feeding reel, a rotating drum in which both reels are detachably installed, a motor that rotates the rotating drum, and a winding reel that rotates. For fixing the perforated article, which comprises a grinder having a motor and configured so that an intermediate part of the tape wound around the reels is wound around the outer peripheral surface of the rotary drum. Of the chuck, a motor for rotating the chuck, and a press-contact means for press-contacting the tape with the wall surface of the hole of the perforated article fixed to the chuck. Characteristic polishing device. 2. The polishing apparatus according to claim 1, wherein the pressing means is a cylinder device.