JP2008166971A - Cylinder for beveling, and piezo-electric reed processing method - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To shorten a time required for replacement work of abrasive, and improve workability. <P>SOLUTION: It is characterized that a cylinder for beveling 10 which carries out bevel processing to a piezo-electric reed, is provided with a cylinder 11 which is consisted of a metal, has a bottom, whose one end is open, and a lid 12 in which a magnet J is prepared for sticking with an aperture end part of the cylinder 11, and the lid 12 is composed so that a bottom unit facing to a bottom of the cylinder 11 becomes a flat plate shape or a mesh shape when it is closely contacts with the aperture end unit of the cylinder 11 by magnetic force of the magnet J. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a beveling cylinder and a piezoelectric piece machining method in machining a piezoelectric piece.

Conventionally, when a beveling process is performed on a piezoelectric piece such as quartz, a metal cylindrical container has been used. This metal container is composed of a bottomed cylindrical body that is open at one end and a lid that closes the opening, and the cylindrical body and the lid are integrated by screwing, or a lid with bolts or the like. Are fixed to a cylindrical body and integrated (for example, see Patent Document 1).
When beveling a piezoelectric piece, the lid is fixed to the cylindrical body with the abrasive and the piezoelectric piece placed in the cylindrical body, and the piezoelectric piece is beveled by rotating around the central axis of the cylindrical body. Was.
Here, when replacing the abrasive according to the state of processing of the piezoelectric piece, remove the lid screwed into the cylindrical body or fixed with bolts, and remove the entire piezoelectric piece in the cylindrical body into a net-like object such as a sieve. In order to receive only the piezoelectric piece with a sieve or the like. Therefore, when beveling is performed again, the piezoelectric piece attached to the sieve or the like is recovered and placed in the cylinder again, and after the abrasive material is newly introduced into the cylinder, the lid is fixed to the cylinder. It was.
JP 2001-285000 A (paragraphs 0002 to 0005, FIG. 6)

However, in the method of fixing the cylindrical body and the lid body by screwing, the screwing of the lid body is complicated, and it takes time to replace the abrasive. Similarly, when the cylindrical body and the lid are fixed with bolts, the operation is complicated and time-consuming.
Further, in the work of exchanging the abrasive, it takes time to fix and separate the cylindrical body and the lid, and it also takes time to collect the piezoelectric pieces received by the sieve.
For these reasons, the time required for the bevel processing of the piezoelectric piece is enlarged, and the productivity is deteriorated.

  Therefore, an object of the present invention is to provide a beveling cylinder and a piezoelectric piece machining method that solve the above-described problems and improve productivity.

  In order to solve the above-described problems, the present invention is a beveling cylinder that bevels a piezoelectric piece, and is in close contact with a cylindrical body that is made of metal and has one bottom opening, and an open end of the cylindrical body. And a lid that faces the bottom of the cylindrical body when the lid is in close contact with the opening end of the cylindrical body by the magnetic force of the magnet, It is characterized by comprising.

  Further, the present invention uses a beveling cylinder including a cylindrical body made of metal and having a bottom and one opening, and a lid provided with a magnet for closely contacting the opening end of the cylindrical body. A method for processing a piezoelectric piece, in which an abrasive and a piezoelectric piece are placed in the cylindrical body, and the lid body having a flat bottom facing the bottom of the cylindrical body is brought into close contact with the opening end of the cylindrical body. A material enclosing step, a rotating step of rotating the cylindrical body containing the abrasive and the piezoelectric piece around the central axis of the cylindrical body, and the bottom portion being in close contact with the cylindrical body while stopping the rotation Remove the flat lid and replace the bottom with a mesh-shaped lid so that it adheres closely to the cylindrical body, causing the abrasive in the cylindrical body to flow out of the mesh-shaped bottom, and then add a new abrasive. Let it flow into the cylinder and replace the lid with a flat plate at the bottom. A polishing agent exchange step for bringing the cylinder into close contact with the cylindrical body, and a process for rotating the cylindrical body containing the new abrasive and the piezoelectric piece around the central axis of the cylindrical body to complete the processing of the piezoelectric piece. And a completion step.

  Further, the present invention is a piezoelectric piece processing method, characterized in that the rotation step and the abrasive exchange step are repeated.

According to such a beveling cylindrical body, the cylindrical body and the lid can be easily fixed and separated, so that the working efficiency is improved and the productivity of the beveled piezoelectric piece can be improved.
Further, according to such a method for processing a piezoelectric piece, the lid can be easily fixed and separated, a tool such as a sieve is not necessary, and the piezoelectric piece can be held in the cylindrical body. Therefore, the productivity of the beveled piezoelectric piece can be improved.

Next, the best mode for carrying out the present invention (hereinafter referred to as “embodiment”) will be described in detail with reference to the drawings as appropriate.
FIG. 1 is a schematic view showing an example of a state before putting abrasive grains, a medium, and a piezoelectric piece into a beveling cylinder according to an embodiment of the present invention. FIG. 2 is a diagram illustrating an example of a state in which abrasive grains, a medium, and a piezoelectric piece are sealed in a beveling cylinder according to an embodiment of the present invention. FIG. 3 is a diagram illustrating an example of a state in which a lid body having a net-like bottom is in close contact with a cylindrical body. FIG. 4 is a diagram illustrating an example of a state in which abrasive grains and media have flowed out. FIG. 5 is a diagram illustrating an example of a state in which new abrasive grains and media are flowing.

As shown in FIG. 1, a beveling cylinder 10 according to an embodiment of the present invention includes a cylindrical body 11 having a bottom and one opening, and a lid 12 that is in close contact with the opening end. 12 uses a bevel processing lid 12A (see FIG. 2) and a replacement lid 12B (see FIG. 3).
The beveling cylinder 10 encloses an abrasive L and a piezoelectric piece B therein, and rotates the central axis C1 of the beveling cylinder 10 as a rotation axis so as to bevel the piezoelectric piece B. It has become.

  As shown in FIGS. 2 and 3, the cylindrical body 11 is made of metal with a magnet J (see FIGS. 2 and 3), one end is closed to become the bottom, and the other end is opened. It has a cylindrical shape with a predetermined diameter.

As shown in FIG. 2, the bevel processing lid body 12 </ b> A has the same diameter as the cylindrical body 11, and includes a main body H <b> 1 and a magnet J. The main body portion H1 is made of resin, and an annular wall portion K is provided along the edge of the flat disc portion S1 so that the disc portion S1 is a bottom portion. Moreover, the magnet J is provided in the inside of the wall part K, and this magnet J is also cyclic | annular. In other words, a resin body is provided around the annular magnet J to form an annular body as the wall portion K, and one opening of the annular body is closed with the resin disk portion S1.
With this configuration, the bevel processing lid 12A can be easily adhered to the opening end of the cylindrical body 11 by the magnetic force of the magnet J, so that the bevel processing lid 12A and the cylindrical body 11 Fixing and separation can be performed easily.

The replacement work lid 12 </ b> B has the same diameter as the cylindrical body 11 and is composed of a main body H <b> 2 and a magnet J. The main body portion H2 is made of resin, and is provided with an annular wall portion K along the edge of the net-like disc portion S2, and the net-like disc portion S2 is the bottom. Moreover, the magnet J is provided in the inside of the wall part K, and this magnet J is also cyclic | annular. In other words, a resin is provided around the annular magnet J to form an annular body as a wall portion K, and one opening of the annular body is covered with the resin disk portion S2.
By configuring in this way, the replacement work lid 12B can be easily adhered to the opening end of the cylindrical body 11 by the magnetic force of the magnet J, so that the replacement work lid 12B and the cylindrical body 11 Fixing and separation can be performed easily.

  The magnet J should have as strong a magnetic force as possible. By configuring in this way, the lid body 12 does not fall off from the cylindrical body 11.

Next, a piezoelectric piece machining method using the beveling cylinder 10 according to the embodiment of the present invention will be described.
First, as shown in FIG. 1, an abrasive L provided with media M and abrasive grains T of a predetermined particle size, and a piezoelectric piece B formed in a predetermined size are prepared.

(Material sealing process)
In the material sealing step, the abrasive L and the piezoelectric piece B prepared in the cylindrical body 11 are put, and a lid body 12 having a flat bottom facing the bottom of the cylindrical body 11 is formed at the opening end of the cylindrical body 11. This is a step of close contact by magnetic force.
The lid 12 at this time is the bevel processing lid 12A shown in FIG. 2 and serves to enclose the abrasive L and the piezoelectric piece B in the cylindrical body 11.

(Rotation process)
The rotation step is a step of rotating the cylindrical body 11 containing the abrasive L and the piezoelectric piece B around the central axis C1 of the cylindrical body 11 as a rotation axis.
Through this rotation process, the piezoelectric piece B is polished with the polishing material L and the bevel processing proceeds. At this time, the cylindrical body 11 is rotated in a state where the central axis C1 is horizontal. As a result, the piezoelectric piece B slides on the inner peripheral surface of the cylindrical body and comes into contact with the abrasive L to perform beveling.

(Abrasive changing process)
In the polishing agent replacement step, the rotation is stopped and the cylinder 11 is in close contact with the cylinder 11 by a magnetic force. The flat lid 12 is removed from the bottom, and the lid 12 is replaced with a net-like lid 12 to be in close contact with the cylinder 11 ( 3), the abrasive L in the cylindrical body 11 flows out from the net-like bottom (see FIG. 4), and then a new abrasive L ′ flows into the cylindrical body 11 (see FIG. 5), and the bottom is flat. It is the process of replacing | exchanging to the cover body 12 of this, and making it adhere to the cylindrical body 11 with a magnetic force.
Here, the flat plate-like lid 12 is the bevel processing lid 12A shown in FIG. 2, and the net-like lid 12 is the replacement work lid 12B shown in FIG.
Thus, since all the lid bodies 12 are in close contact with the cylindrical body 11 by magnetic force, the lid body 12 can be easily fixed to and separated from the cylindrical body 11.

(Processing completion process)
The processing completion step is a step of rotating the cylindrical body 11 containing the new abrasive L ′ and the piezoelectric piece B around the central axis C1 of the cylindrical body 11 to complete the bevel processing of the piezoelectric piece. .

  Thereby, since the lid 12 is in close contact with the cylindrical body 11 by magnetic force, the replacement work of the abrasives L and L ′ can be performed with a simple operation like one touch. Accordingly, the time required for fixing and separating the cylindrical body 11 and the lid body 12 is shortened, and the piezoelectric piece is fastened in the cylindrical body 11, so that the piezoelectric piece is not damaged and the productivity is improved. be able to.

In addition, you may perform repeatedly a rotation process and an abrasive | polishing agent exchange process. This is performed when the amount of beveling is large, or when mirror finishing is performed, and when a plurality of abrasive grains are used.
Therefore, as the number of abrasives to be replaced increases, it takes longer in the prior art. However, if the piezoelectric piece processing method of the present invention is used, the time required to replace the abrasives can be shortened.

As mentioned above, although embodiment of this invention was described, this invention is not limited to the said embodiment. For example, since a metal container conventionally used for the cylindrical body 11 can be used, it is not necessary to prepare a container separately.
Further, the diameter of the lid body 12 may be set such that the outer circumferential surface of the cylindrical body 11 is in contact with the inner circumferential surface of the wall portion H of the lid body.
Moreover, you may comprise the whole cover body with a magnet.
Further, a plurality of block-shaped magnets may be provided on the wall portion of the lid body in a point-symmetric manner with respect to the center point of the lid body at a predetermined interval.

It is a schematic diagram which shows an example before putting an abrasive grain, a medium, and a piezoelectric piece in the cylinder for beveling which concerns on embodiment of this invention. It is a figure which shows an example of the state which enclosed the abrasive grain, the medium, and the piezoelectric piece in the cylinder for beveling which concerns on embodiment of this invention. It is a figure which shows an example of the state which stuck the lid | cover whose bottom part is mesh shape to the cylindrical body. It is a figure which shows an example of the state which flowed out the abrasive grain and the medium. It is a figure which shows an example of the state which is flowing in the new abrasive grain and the medium.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Beveling cylinder 11 Cylindrical body 12 Cover body 12A Bevel processing cover body 12B Replacement work cover body B Piezoelectric piece J Magnet K Wall part M Media T Abrasive grain L, L 'Abrasive material H1, H2 Main body part S1, S2 Disc part

Claims (3)

A beveling cylinder for beveling a piezoelectric piece,
A cylindrical body made of metal and having a bottom and one opening;
A lid provided with a magnet for closely contacting the opening end of the cylindrical body,
A cylindrical body for beveling characterized in that when the lid is in close contact with the opening end of the cylindrical body by the magnetic force of the magnet, the bottom facing the bottom of the cylindrical body is formed in a flat plate shape or a net shape. . A piezoelectric piece processing method using a cylinder for beveling comprising a cylindrical body made of metal and having a bottom and one opening, and a lid provided with a magnet for adhering to the opening end of the cylindrical body. And
A material enclosing step of putting an abrasive and a piezoelectric piece into the cylindrical body, and in close contact with the opening end of the cylindrical body, the lid body having a flat shape facing the bottom of the cylindrical body,
A rotating step of rotating the cylindrical body containing the abrasive and the piezoelectric piece around a central axis of the cylindrical body;
The bottom part that is in close contact with the cylindrical body with the rotation stopped is removed from the flat plate-like cover body, and the bottom part is replaced with a net-like cover body to be in close contact with the cylindrical body. A polishing agent exchange step for causing the net-like bottom portion to flow out, and then allowing a new abrasive to flow into the cylindrical body, replacing the bottom portion with the flat plate-like lid body and closely contacting the cylindrical body,
A machining completion step of rotating the cylindrical body containing the new abrasive and the piezoelectric piece about the central axis of the cylindrical body as a rotation axis to complete the machining of the piezoelectric piece,
A method for processing a piezoelectric piece, comprising:   The piezoelectric piece processing method according to claim 2, wherein the rotating step and the abrasive changing step are repeated.

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