JPH0737019B2 - Inner surface cutting method for cylindrical ceramic body - Google Patents
Inner surface cutting method for cylindrical ceramic bodyInfo
- Publication number
- JPH0737019B2 JPH0737019B2 JP3067638A JP6763891A JPH0737019B2 JP H0737019 B2 JPH0737019 B2 JP H0737019B2 JP 3067638 A JP3067638 A JP 3067638A JP 6763891 A JP6763891 A JP 6763891A JP H0737019 B2 JPH0737019 B2 JP H0737019B2
- Authority
- JP
- Japan
- Prior art keywords
- cutting
- ceramic body
- shaft
- cutting tool
- tool
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 238000005520 cutting process Methods 0.000 title claims description 83
- 239000000919 ceramic Substances 0.000 title claims description 26
- 238000000034 method Methods 0.000 title claims description 10
- 239000002689 soil Substances 0.000 claims description 14
- 239000000314 lubricant Substances 0.000 claims description 9
- 239000002699 waste material Substances 0.000 description 11
- 238000004804 winding Methods 0.000 description 6
- 239000012212 insulator Substances 0.000 description 4
- 229910052573 porcelain Inorganic materials 0.000 description 4
- 239000004927 clay Substances 0.000 description 2
- 230000002950 deficient Effects 0.000 description 2
- 239000003990 capacitor Substances 0.000 description 1
- 239000003638 chemical reducing agent Substances 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Turning (AREA)
- Processing Of Stones Or Stones Resemblance Materials (AREA)
- Devices For Post-Treatments, Processing, Supply, Discharge, And Other Processes (AREA)
Description
【０００１】[0001]
【産業上の利用分野】本発明は、陶磁器素体よりなる碍
管等の内面を機械的に切削する円筒状陶磁器素体の内面
切削方法に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for cutting an inner surface of a cylindrical ceramic body which mechanically cuts the inner surface of a porcelain insulator or the like made of the ceramic body.
【０００２】[0002]
【従来の技術】陶磁器製の中空管状碍管は、計器用変成
器、避雷器、結合コンデンサ−、ブッシング遮断器等の
外殻絶縁体として多用されている。これら陶磁器製碍管
等の製造工程には、真空土練機等から押し出された陶磁
器素体を一次乾燥後その素体の外面及び内面を一定の形
状に切削する工程が含まれている。このため、陶磁器素
体を回転ロクロ上にセットして回転させながら数値制御
装置に基づいて外面形状を削り出し、その後に内面切削
装置により切削刃によって内面形状の削り出しを行う方
法が採用されている。内面形状の削り出しの具体的方法
としては、切削用バイトを取着したシャフトあるいは素
体本体を相対的に回転させ切削用バイトで素体内面を削
り取っていく。この場合、切削用バイトを支持するシャ
フトには大きな切削抵抗に基づく応力がかかるので、剛
性上の点からシャフト本体径を太く形成する必要があ
る。しかし、切削用バイトを円筒状素体内部に挿入して
切削するには、製品の内径との関係よりシャフト本体の
先端部径は小さく構成する必要がある。そこで、シャフ
ト本体の上部の細径部と下部の太径部との連続個所に
は、剛性上の点からテ−パ−部が形成される。2. Description of the Related Art Hollow porcelain hollow ceramic tubes are widely used as outer shell insulators for instrument transformers, lightning arresters, coupling capacitors, bushing circuit breakers and the like. The manufacturing process of these ceramic porcelain insulator tubes and the like includes a process of primary-drying a ceramic body extruded from a vacuum clay kneader or the like and thereafter cutting the outer surface and the inner surface of the body into a certain shape. For this reason, a method is adopted in which the ceramic body is set on a rotary wheel and is rotated while the outer surface shape is cut out based on a numerical control device, and then the inner surface cutting device is used to cut out the inner surface shape by a cutting blade. There is. As a concrete method of shaving the inner surface shape, the shaft or the element body main body to which the cutting tool is attached is relatively rotated, and the surface of the element body is scraped off by the cutting tool. In this case, the shaft supporting the cutting tool is subjected to a stress due to a large cutting resistance, so that it is necessary to form the shaft main body with a large diameter from the viewpoint of rigidity. However, in order to insert the cutting bit into the cylindrical body to perform cutting, the diameter of the tip portion of the shaft body must be smaller than the inner diameter of the product. Therefore, a taper portion is formed at a continuous portion of the upper small diameter portion and the lower large diameter portion of the shaft body from the viewpoint of rigidity.
【０００３】[0003]
【発明が解決しようとする課題】しかしながら、上記の
ような切削具により切削する方法によると、切削バイト
による素体内面の切り込み量あるいは切り込み量の変
化、素体あるいは切削用バイトの回転数と素体との相対
的送り量とのバランス等によっては切削排土がシャフト
本体に付着したり、巻きついたりしてしまう。特に前記
シャフトのテ−パ−部への巻きつきが多い。このように
切削排土が内面切削用のバイトを保持するシャフト本体
に付着したり巻きついたりすると、その切削排土の付
着、巻付きによりシャフトの振れが生じてしまい適正な
切削バイトによる作業ができなくなってしまうほか、切
削面に切削排土が回転に伴って衝突し、仕上げ面に傷を
つけるという不具合がある。この不具合は、長尺の碍管
の切削に用いるシャフトにとっては特に影響が大とな
る。また切削排土が排出されずにシャフト近傍に堆積す
ると切削作業自体ができなくなるので、作業を一時停止
して安全を確認した後、切削排土の除去を行わなければ
ならないという煩雑な作業を要した。However, according to the method of cutting with the above-described cutting tool, the cutting amount or change in the cutting amount on the surface of the element body by the cutting tool, the number of revolutions of the element or cutting tool and the element Depending on the balance with the relative feed amount with the body, the cutting waste may adhere to the shaft body or wind up. In particular, there is much winding around the taper portion of the shaft. In this way, if the cutting waste adheres to or winds around the shaft body that holds the cutting tool for inner surface cutting, the sticking and winding of the cutting waste will cause the shaft to run out, and work with an appropriate cutting tool will be performed. In addition to being unable to do so, there is a problem that the cutting soil collides with the cutting surface as it rotates and scratches the finished surface. This defect has a great influence particularly on a shaft used for cutting a long porcelain insulator. Also, if cutting waste is not discharged and accumulates near the shaft, the cutting work itself cannot be performed.Therefore, it is necessary to temporarily stop the work and check safety before removing the cutting waste. did.
【０００４】本発明は、上記不具合を解決すべく提案さ
れるもので、排土の付着によるシャフト振れあるいは仕
上げ内面への衝突等によって不良製品が生成されること
を防止し、排土の除去作業による時間的ロスを無くし切
削作業稼働率の向上を図ることを目的としたものであ
る。The present invention has been proposed to solve the above-mentioned problems, and prevents defective products from being produced due to shaft runout due to adhered soil or collision with the inner surface of the finish, and removal work for soil removal. The purpose is to eliminate the time loss due to and improve the working rate of cutting work.
【０００５】[0005]
【課題を解決するための手段】本発明は上記目的を達成
するために、円筒状陶磁器素体と切削手段とを所定速度
で相対的に回転させながら陶磁器素体の内面形状の削り
出しを行う円筒状陶磁器素体の内面切削方法において、
円筒状陶磁器素体を切削用バイトと潤滑剤出射具とを有
する切削手段の切削初期位置にセットした後、制御手段
を介して切削用バイトを制御しながら陶磁器素体の内面
切削を行い、その直後から潤滑剤出射具を連続的にある
いは間欠的に駆動させ切削排土を切削用バイトを支持す
るシャフトに付着或いは巻付きさせないようにしたこと
を特徴とする円筒状陶磁器素体の内面切削方法である。In order to achieve the above object, the present invention carves out the inner surface shape of a ceramic body while rotating a cylindrical ceramic body and a cutting means relatively at a predetermined speed. In the inner surface cutting method of the cylindrical ceramic body,
After setting the cylindrical ceramic body at the initial cutting position of the cutting means having a cutting tool and a lubricant ejector, the inner surface of the ceramic body is cut while controlling the cutting tool through the control means, Immediately after that, the lubricant discharge tool is continuously or intermittently driven to prevent cutting soil from adhering to or winding around the shaft supporting the cutting tool, and a method for cutting the inner surface of the cylindrical ceramic body. Is.
【０００６】[0006]
【作用】このように切削作業中の切削排土を切削内面に
衝突させることなく円滑に除去しながら切削を行うとい
う方法をとったので、適正な作業を円滑に実施できると
ともに製品の品質向上を図れる。[Function] Since the cutting waste is smoothly removed without colliding with the inner surface of the cutting during the cutting work, the proper work can be smoothly carried out and the product quality can be improved. Can be achieved.
【０００７】[0007]
【実施例】以下、図面を参照しながら本発明の１実施例
を説明していく。図１は切削装置の全体図であり、図２
は切削用バイト近傍の拡大断面図である。先ず真空土練
機等から押し出された円筒状の陶磁器素体１を回転ロク
ロ２上にセットして、その上端を支軸３に支持させ回転
数制御装置の制御下に回転ロクロ２を所定速度で回転さ
せる。この状態で制御部４のCPU ５がアンプ６を通じて
内面切削機構７及び外面切削機構８にそれぞれ制御信号
を送り、内面切削機構７の切削用バイト９と外面切削機
構８の切削用バイト10とを上下方向及び前後方向に移動
させつつ内外面の切削を行う。なお、各切削用バイトの
動きは１品種ごとにテ−プリ−ダ−11を介してCPU ５に
インプットされており、始動後は全く人手を必要とする
ことなく所望形状の切削が行われることとなる。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. FIG. 1 is an overall view of the cutting device, and FIG.
FIG. 4 is an enlarged cross-sectional view of the vicinity of a cutting tool. First, the cylindrical ceramic body 1 extruded from a vacuum clay kneader or the like is set on the rotary roller 2, and the upper end of the ceramic ceramic body 1 is supported by the support shaft 3 to rotate the rotary roller 2 at a predetermined speed under the control of the rotation speed control device. Rotate with. In this state, the CPU 5 of the control unit 4 sends a control signal to each of the inner surface cutting mechanism 7 and the outer surface cutting mechanism 8 through the amplifier 6, and sends the cutting tool 9 of the inner surface cutting mechanism 7 and the cutting tool 10 of the outer surface cutting mechanism 8. The inner and outer surfaces are cut while moving in the vertical and front-back directions. The movement of each cutting tool is input to the CPU 5 via the tape feeder 11 for each product type, and after the start, the cutting of the desired shape can be performed without requiring any human hands. Becomes
【０００８】内面切削機構７の切削用バイト９によって
陶磁器素体１の内面を切削するには図２に示すように、
切削用バイト９を所定の押圧力によって回転する陶磁器
素体１に切り込み接触させる。すると、削り取られた排
土が帯状となり鎖線表示されるように切削用バイト９を
支持しているシャフト12の周囲に落下する。ところが、
本実施例の場合はシャフト12の内部を通してノズル13が
切削用バイト９の近傍に配設され、切削用バイト９の先
端近傍に向けて水、油等の潤滑剤が出射されるようにな
っている。図２では、切削と同時に潤滑剤を出射し排土
の表面に潤滑剤を塗布するので、排土の潤滑性がよく、
スムーズに落下させ排出することができる。なお、潤滑
剤は連続的に出射してもよいし間欠的に出射してもよい
が、切削される排土量に応じて出射タイミングと出射量
を設定すればよい。To cut the inner surface of the ceramic body 1 by the cutting tool 9 of the inner surface cutting mechanism 7, as shown in FIG.
The cutting tool 9 is cut into contact with the rotating ceramic body 1 by a predetermined pressing force. Then, the excavated soil becomes strip-shaped and falls around the shaft 12 supporting the cutting tool 9 so as to be displayed by a chain line. However,
In the case of the present embodiment, the nozzle 13 is arranged in the vicinity of the cutting tool 9 through the inside of the shaft 12 so that the lubricant such as water and oil is discharged toward the vicinity of the tip of the cutting tool 9. There is. In FIG. 2, since the lubricant is ejected at the same time as cutting and the lubricant is applied to the surface of the soil, the lubricity of the soil is good,
Can be dropped and discharged smoothly. The lubricant may be emitted continuously or intermittently, but the emission timing and the emission amount may be set according to the amount of soil removed.
【０００９】このようにして陶磁器素体１の内面より切
削された排土は、切削内面にぶつかったり、シャフトに
巻付くことなく回転ロクロ２の貫通孔14から下方に落下
し図示していない排出コンベアによって集められ、再び
戻り原料として使用される。なお、シャフト12の上部に
形成されているテ−パ−部15は従来はシャフト振れおよ
び機械的強度の点より５〜６°の傾斜に形成されていた
が、本実施例では切削排土がシャフトに巻き付くことが
ないので剛性が低下することのない程度のゆるやかな傾
斜１〜２°に形成されている。The soil discharged from the inner surface of the ceramic body 1 in this way falls downward from the through hole 14 of the rotary roller 2 without hitting the inner surface of the cutting or winding around the shaft, and is discharged not shown. It is collected by a conveyor and returned to be used as a raw material. Incidentally, the taper portion 15 formed on the upper portion of the shaft 12 is conventionally formed to have an inclination of 5 to 6 ° in view of shaft runout and mechanical strength. Since it does not wind around the shaft, it is formed with a gentle inclination of 1 to 2 so that the rigidity does not decrease.
【００１０】回転ロクロ２の回転はモ−タ16、減速機1
7、ベルト18によって行われるが、回転ロクロ２の回転
数は主軸アンプ19、ロ−タリ−エンコ−ダ20等によって
構成される回転制御装置によって制御されている。内面
切削機構７は、モ−タ24により駆動される垂直な送りネ
ジ22と、これと螺合して昇降する昇降台23と、この昇降
台23に設けられたモ−タ24及び水平な送りネジ25により
紙面に対して垂直方向に移動できる内面切削用棹26と切
削用バイト９とを有する。The rotation of the rotary wheel 2 is performed by the motor 16 and the speed reducer 1.
7. The rotation speed of the rotary wheel 2 is controlled by a rotation control device composed of a main shaft amplifier 19, a rotary encoder 20, and the like. The inner surface cutting mechanism 7 includes a vertical feed screw 22 driven by a motor 24, a lift table 23 that is screwed up and down to move up and down, a motor 24 provided on the lift table 23, and a horizontal feed screw. It has an inner surface cutting rod 26 and a cutting tool 9 which can be moved in the direction perpendicular to the paper surface by screws 25.
【００１１】[0011]
【発明の効果】以上のごとく本発明によれば、切削用バ
イトにより陶磁器素体の内面を切削する際に切削排土が
生じても、ノズルから潤滑剤等が射出されることにより
適宜切削排土をスムーズに落下させることができ、切削
用バイトを支持しているシャフトに切削廃土が付着した
り、巻きついたりすることを防止できる。したがって、
シャフトは常に適正な動作を行うことができ、切削排土
のシャフトへの巻付きにともなうシャフト振れあるいは
仕上げ面への切削排土の衝突等により不良製品が生ずる
ということがなくなる。また、切削廃土を作業中に除去
しなければならないといった煩雑な作業を不要とする。As described above, according to the present invention, even if the cutting soil is generated when the inner surface of the ceramic body is cut by the cutting tool, the lubricant is injected from the nozzle to appropriately remove the cutting waste. The soil can be dropped smoothly, and it is possible to prevent the cutting waste soil from adhering or winding around the shaft supporting the cutting tool. Therefore,
The shaft can always perform an appropriate operation, and a defective product will not be generated due to shaft runout due to winding of the cutting waste on the shaft or collision of the cutting waste on the finished surface. In addition, complicated work such as having to remove the cutting waste soil during the work is unnecessary.
【図１】切削装置の全体図である。FIG. 1 is an overall view of a cutting device.
【図２】切削用バイト近傍の拡大断面図である。FIG. 2 is an enlarged sectional view of the vicinity of a cutting tool.
１ 陶磁器素体 ９ 切削用バイト 12 シャフト 13 ノズル 15 テ−パ−部 1 Ceramic body 9 Cutting tool 12 Shaft 13 Nozzle 15 Taper part
Claims (1)
度で相対的に回転させながら陶磁器本体の内面形状の削
り出しを行う円筒状陶磁器素体の内面切削方法におい
て、円筒状陶磁器素体を切削用バイトと潤滑剤出射具と
を有する切削手段の切削初期位置にセットした後、制御
手段を介して切削用バイトを制御しながら陶磁器素体の
内面切削を行い、その直後から潤滑剤出射具を連続的に
あるいは間欠的に駆動させて切削排土を切削用バイトを
支持するシャフトに付着させないようにしたことを特徴
とする円筒状陶磁器素体の内面切削方法。1. An inner surface cutting method for a cylindrical ceramic body, wherein the inner surface shape of a ceramic body is carved while relatively rotating the cylindrical ceramic body and a cutting means at a predetermined speed. Is set at the cutting initial position of the cutting means having a cutting tool and a lubricant ejector, the inner surface of the ceramic body is cut while controlling the cutting tool through the control means, and the lubricant is ejected immediately after that. A method for cutting an inner surface of a cylindrical ceramic body, wherein the tool is continuously or intermittently driven to prevent the cutting soil from adhering to a shaft supporting a cutting tool.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3067638A JPH0737019B2 (en) | 1991-03-08 | 1991-03-08 | Inner surface cutting method for cylindrical ceramic body |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3067638A JPH0737019B2 (en) | 1991-03-08 | 1991-03-08 | Inner surface cutting method for cylindrical ceramic body |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH04279303A JPH04279303A (en) | 1992-10-05 |
| JPH0737019B2 true JPH0737019B2 (en) | 1995-04-26 |
Family
ID=13350741
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3067638A Expired - Fee Related JPH0737019B2 (en) | 1991-03-08 | 1991-03-08 | Inner surface cutting method for cylindrical ceramic body |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0737019B2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101651361B1 (en) * | 2015-05-11 | 2016-08-25 | 두산중공업 주식회사 | Milling machine for valve seat |
| CN107991122A (en) * | 2017-11-03 | 2018-05-04 | 苏州诺登德智能科技有限公司 | The micro- damage sampler of metal and its sampling method |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6014679B2 (en) * | 1977-08-16 | 1985-04-15 | 日本電気株式会社 | Thin film cutting device |
| JPS6014680B2 (en) * | 1977-10-06 | 1985-04-15 | 日本電気株式会社 | Thin film cutting device |
| JP2549905B2 (en) * | 1988-12-27 | 1996-10-30 | 株式会社住友金属エレクトロデバイス | Ceramic raw substrate processing equipment |
-
1991
- 1991-03-08 JP JP3067638A patent/JPH0737019B2/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101651361B1 (en) * | 2015-05-11 | 2016-08-25 | 두산중공업 주식회사 | Milling machine for valve seat |
| CN107991122A (en) * | 2017-11-03 | 2018-05-04 | 苏州诺登德智能科技有限公司 | The micro- damage sampler of metal and its sampling method |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH04279303A (en) | 1992-10-05 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| WO1985001240A1 (en) | Cutting installation | |
| JPH1034639A (en) | Method and device for cutting extrusion-molded body | |
| US4765016A (en) | Chip removing device | |
| JPH0737019B2 (en) | Inner surface cutting method for cylindrical ceramic body | |
| EP0329856A2 (en) | Apparatus for making concrete articles | |
| JPH01262117A (en) | Method and device for maintaining opposite gas vent process in single spindle type extrusion molding machine | |
| CN109624159A (en) | A kind of automobile parts processing unit (plant) | |
| CN114434623B (en) | Be applied to ceramic filler production line group of deformation prevention in packing tower | |
| JPH03114699A (en) | Powder press apparatus | |
| JPH0635162B2 (en) | Bead wire forming equipment for tires | |
| CN110200294A (en) | A kind of shell breaking method of nut and the nut cracker that can be automatically controled broken shell pressure | |
| CN214349278U (en) | Wire cutting device for wire harness processing | |
| CN220679236U (en) | Spring coiling device capable of controlling length of spring | |
| CN209364950U (en) | A kind of tile cutter device | |
| CN214445001U (en) | High-precision numerical control blanking machine | |
| CN206952678U (en) | A kind of saw chain blade knife sharpener | |
| CN220030616U (en) | Top cutting machine for secondary cutting | |
| KR101862148B1 (en) | Removal apparatus | |
| CN215942321U (en) | Numerical control machining tool setting device | |
| EP0341114B1 (en) | Machine for boring into a hard material such as glass | |
| JPH061355U (en) | Remaining material processing equipment for rolled thin plate | |
| KR20010046366A (en) | Method for de-burring slab on-line | |
| CN220902211U (en) | Discharging machine head | |
| CN223071911U (en) | Drying and granulating integrated plastic production device | |
| CN223588876U (en) | Coring and discharging device for sizing blind hole |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20090426 Year of fee payment: 14 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20100426 Year of fee payment: 15 |
|
| LAPS | Cancellation because of no payment of annual fees |