JPH05131302A - Method for cutting outer surface of ingot and device therefor - Google Patents
Method for cutting outer surface of ingot and device thereforInfo
- Publication number
- JPH05131302A JPH05131302A JP32002591A JP32002591A JPH05131302A JP H05131302 A JPH05131302 A JP H05131302A JP 32002591 A JP32002591 A JP 32002591A JP 32002591 A JP32002591 A JP 32002591A JP H05131302 A JPH05131302 A JP H05131302A
- Authority
- JP
- Japan
- Prior art keywords
- ingot
- cutting
- rolls
- roll
- 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.)
- Pending
Links
Landscapes
- Turning (AREA)
Abstract
Description
【0001】[0001]
【産業上の利用分野】本発明は鋳塊表面切削方法および
装置に関するもので、特に円形断面をもつ鋳塊の表面付
近を連続的に切削する鋳塊表面切削方法および装置に関
するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an ingot surface cutting method and apparatus, and more particularly to an ingot surface cutting method and apparatus for continuously cutting the vicinity of the surface of an ingot having a circular cross section.
【0002】[0002]
【従来の技術】横型連続鋳造ライン中では通常、鋳塊の
割れ、傷等の表面欠陥や、す等の鋳造欠陥を除くため
に、表面切削機で鋳塊の表面付近を切削して除去する。
横型連続鋳造装置は一般に、図9に示すように、保持炉
1、水冷鋳型2、引出機3、切断機4で構成されてい
る。保持炉1から鋳塊5は水冷鋳型2で冷却、凝固さ
れ、引出機3で引き出され、固定スタンドロール7a,
7b,7cで支持され、切断機4で適当な長さに切断さ
れる。2. Description of the Related Art Generally, in a horizontal continuous casting line, in order to remove surface defects such as cracks and scratches in the ingot and casting defects such as soot, the surface of the ingot is removed by cutting around the surface of the ingot. ..
As shown in FIG. 9, the horizontal continuous casting apparatus generally comprises a holding furnace 1, a water-cooled mold 2, a drawer 3, and a cutter 4. The ingot 5 is cooled and solidified in the water-cooled mold 2 from the holding furnace 1 and drawn out by the drawing machine 3, and the fixed stand roll 7a,
It is supported by 7b and 7c and cut by a cutting machine 4 to an appropriate length.
【0003】横型連続鋳造装置の運転は、通常、一定長
さの鋳塊を引出した後、一旦停止し、再び引出しを続け
る形で、間欠的に運転される。停止時間は、鋳造される
金属の材質、鋳型の構造、材質等により異なるが、通常
数十秒である。鋳塊の移動の速度は図10に示すように
変化する。The horizontal continuous casting apparatus is usually operated intermittently in such a manner that a certain length of ingot is drawn out, then temporarily stopped, and then drawn out again. The stop time varies depending on the material of the metal to be cast, the structure of the mold, the material, etc., but is usually several tens of seconds. The moving speed of the ingot changes as shown in FIG.
【0004】鋳塊表面切削機として従来は、板、細い条
の連続鋳造では、床に固定されたレールまたはガイドに
沿って、鋳塊の長さ方向に鋳塊とともに自走するものが
用いられている。Conventionally, as an ingot ingot surface cutting machine, in continuous casting of plates and thin strips, one that self-propels along with the ingot in the length direction of the ingot along a rail or guide fixed to the floor is used. ing.
【0005】後述の理由により、円断面の太い鋳塊の表
面切削は、鋳塊をビレットに切断後、旋盤を用いて行う
ことが多い。ビレットを熱間皮剥きする方法を用いるこ
ともある。For the reasons described below, the surface cutting of an ingot having a thick circular cross section is often carried out by using a lathe after cutting the ingot into billets. A method of hot peeling the billet may be used.
【0006】[0006]
【発明が解決しようとする課題】しかし、ビレットの旋
盤加工は、旋盤作業者が必要な上、旋盤への装着、芯出
し等をビレット一個ずつ行わねばならず、時間当たりの
処理能力が低く、量産に適さない。However, in lathe machining of billets, a lathe operator is required, and each billet must be mounted on the lathe and centered one by one, so that the processing capacity per hour is low. Not suitable for mass production.
【0007】また、ビレットを熱間皮剥きする方法は、
高温を要する銅合金等には、皮剥き工具の寿命が短いた
め、実用されない。The method of hot peeling the billet is as follows:
Copper alloys that require high temperatures are not practical because the life of the peeling tool is short.
【0008】板、細い条の横型連続鋳造で用いられる、
床に布設されたレールまたはガイドに沿って鋳塊の長さ
方向に鋳塊とともに自走する鋳塊表面切削機は、容易に
曲がる薄板や細い条には適するが、曲げに対する剛性の
大きい円断面の鋳塊には適しない。それは、切削工具が
鋳塊の半径方向に関しては床に対し固定され、鋳塊の曲
がり(蛇行を含む)その他の変形、外径変動等による直
径方向への変位に対し追従できないので、切削円が鋳塊
の断面からずれて表面付近の削り残しを生じるためであ
る。また、間欠引出しにおいて、加速、減速の際の鋳塊
の慣性力が切削工具に作用するため、工具の寿命が著し
く短くなり、実用に耐えない。Used in horizontal continuous casting of plates and thin strips,
The ingot surface cutting machine, which runs along the ingot in the length direction of the ingot along the rails or guides laid on the floor, is suitable for thin plates and thin strips that bend easily, but has a circular cross section with high rigidity against bending. Not suitable for ingots. It is because the cutting tool is fixed to the floor in the radial direction of the ingot, and it cannot follow the bending (including meandering) and other deformations of the ingot, and the displacement in the diameter direction due to the outer diameter fluctuation, etc. This is because the uncut portion near the surface is generated by shifting from the cross section of the ingot. Further, in intermittent drawing, the inertial force of the ingot during acceleration and deceleration acts on the cutting tool, so the life of the tool is significantly shortened and it cannot be put to practical use.
【0009】それ故、本発明の目的は、ビレットの旋盤
加工や熱間皮剥きによらないで、連続鋳造による円断面
の鋳塊の表面付近の切削を行う方法の実現にある。Therefore, an object of the present invention is to realize a method for performing cutting in the vicinity of the surface of an ingot having a circular cross section by continuous casting without relying on lathe machining of a billet or hot stripping.
【0010】また、本発明の目的は、鋳塊の曲がり(蛇
行を含む)、その他の変形、外径変動等による、直径方
向への変位があっても、削り残しを生ずることなく、ま
た工具の寿命が長い、連続鋳造による円断面鋳塊に適し
た表面切削装置を実現することにある。Further, an object of the present invention is that even if there is a displacement in the diametrical direction due to bending (including meandering) of the ingot, other deformation, variation in outer diameter, etc., there is no uncut residue, and a tool is used. The object of the present invention is to realize a surface cutting device that has a long life and is suitable for circular ingots by continuous casting.
【0011】[0011]
【課題を解決するための手段】本発明においては、ビレ
ットの旋盤加工や熱間皮剥きによらないで、連続鋳造に
よる円断面の鋳塊の表面付近の切削を行う方法を実現す
るため、鋳塊をビレットに切断する前に表面切削を行う
ようにし、鋳塊の軸心に垂直な断面内を、鋳塊の表面の
位置に応じて移動可能な切削工具を用いて切削する。In order to realize a method of cutting the vicinity of the surface of an ingot having a circular cross section by continuous casting, the present invention does not rely on lathe machining of billets or hot stripping. Surface cutting is performed before cutting the ingot into billets, and a cross section perpendicular to the axis of the ingot is cut using a cutting tool that is movable according to the position of the surface of the ingot.
【0012】また、本発明においては、鋳塊の曲がり
(蛇行を含む)、その他の変形、外径変動等による、直
径方向への変位があっても、削り残しを生ずることな
く、また工具の寿命が長い、連続鋳造による円断面鋳塊
に適した表面切削装置を実現するため、鋳塊表面切削装
置を、鋳塊の長さ方向の少なくとも2点において鋳塊を
挟持する少なくとも2対のロールと、これらの挟持ロー
ルを支持するフレームと、このフレームによって支持さ
れ、切削工具を回転させる回転部材と、挟持ロールの少
なくとも一つを回転させる第一の駆動手段と、回転部材
を駆動する第二の駆動手段を備え、これによりフレー
ム、従って回転部材が、鋳塊によって空間的に支持され
るように構成した。Further, in the present invention, even if there is a displacement in the diametrical direction due to bending (including meandering) of the ingot, other deformation, variation in outer diameter, etc., no uncut portion is left and the tool In order to realize a surface cutting device having a long life and suitable for a circular cross-section ingot by continuous casting, the ingot surface cutting device is provided with at least two pairs of rolls that sandwich the ingot at at least two points in the length direction of the ingot. A frame that supports the sandwiching rolls, a rotating member that is supported by the frame and that rotates the cutting tool, a first drive unit that rotates at least one of the sandwiching rolls, and a second member that drives the rotating member. Drive means, whereby the frame, and thus the rotating member, is spatially supported by the ingot.
【0013】本発明の鋳塊表面切削方法において、切削
工具の鋳塊の長さ方向での移動は、連続的でもよいし、
また間欠的でもよい。In the ingot surface cutting method of the present invention, the movement of the cutting tool in the length direction of the ingot may be continuous,
It may be intermittent.
【0014】鋳塊表面切削装置は、外周の断面がV字形
のロールを少なくとも2対具える。2対で充分である
が、3対以上具えても差し支えない。ロールの各対は鋳
塊の直径方向の両側に位置し、それらの間に鋳塊を挟み
込んで、各対のロールを鋳塊に対し鋳塊の半径方向に関
して固定する。各対のロールの間に鋳塊を挟み込むに
は、上側のロールが下向きに移動できるようにしてもよ
く、あるいは下側のロールを上向きに移動できるように
してもよい。ロール表面のV字形の断面の溝の底部に、
さらに矩形断面の溝を形成させてもよく、それにより鋳
塊の滑りが防止される。The ingot surface cutting device includes at least two pairs of rolls each having a V-shaped cross section. Two pairs are sufficient, but three or more pairs are acceptable. Each pair of rolls is located diametrically on either side of the ingot, and the ingot is sandwiched between them to secure each pair of rolls to the ingot in the radial direction of the ingot. In order to sandwich the ingot between each pair of rolls, the upper roll may be allowed to move downward, or the lower roll may be allowed to move upward. At the bottom of the groove of V-shaped cross section of the roll surface,
Furthermore, a groove having a rectangular cross section may be formed to prevent the ingot from slipping.
【0015】少なくとも一つのロールが駆動手段によ
り、鋳塊の外周に沿って長さ方向に走行するよう強制的
に回転される。駆動手段は、例えば電動モータとベル
ト、チェーンまたは歯車の組合せで、構成することがで
きる。空気圧、水圧、油圧等を用いることもできる。At least one roll is forcibly rotated by the drive means to run longitudinally along the outer circumference of the ingot. The driving means can be constituted by, for example, a combination of an electric motor and a belt, a chain or a gear. Air pressure, water pressure, hydraulic pressure, etc. can also be used.
【0016】ロールの走行は、主として、鋳塊の移動に
応じて鋳塊の進行と反対向きに行われるが、必要に応じ
鋳塊の進行方向に走行させてもよい。鋳塊の進行と反対
向きに走行させる際、鋳塊の移動速度より速くしてもよ
いが、必要に応じそれより遅くしてもよい。鋳塊の移動
速度より速くすれば、連続鋳造装置に接近し、遅くすれ
ば遠ざかる。鋳塊の平均移動速度(図10参照)と等し
い速度で走行させれば、表面切削装置は連続鋳造装置か
ら一定の距離の範囲に位置する。ロールの走行は連続的
でもよく、また間欠的でもよい。The roll is mainly run in the opposite direction to the progress of the ingot according to the movement of the ingot, but it may be run in the direction of advance of the ingot, if necessary. When traveling in the direction opposite to the progress of the ingot, it may be faster than the moving speed of the ingot, but may be slower than that if necessary. If the moving speed of the ingot is higher than the moving speed of the ingot, the continuous casting apparatus is approached, and if the moving speed is slower, the distance is increased. When the ingot is moved at a speed equal to the average moving speed (see FIG. 10), the surface cutting device is located within a certain distance from the continuous casting device. The roll may run continuously or intermittently.
【0017】切削工具はロールの異なる対の間に設けら
れるが、付加的な切削工具をロールの対より鋳塊の移動
の上流あるいは下流に設けてもよい。切削工具は、円断
面をもつ鋳塊の表面付近を切削して除く目的で、鋳塊の
外周に沿って円周方向に回転し得るように構成される。
鋳塊の長さ方向へのロールの走行に応じて、鋳塊に沿っ
て移動できるように構成されるが、ある範囲でロールの
走行と独立に移動することができるように構成してもよ
い。必要に応じ、鋳塊の半径方向での位置を変更するこ
とにより、旋削の深さを変えることができる。The cutting tool is provided between different pairs of rolls, but additional cutting tools may be provided upstream or downstream of the ingot movement relative to the roll pair. The cutting tool is configured to be rotatable in the circumferential direction along the outer circumference of the ingot for the purpose of cutting and removing the vicinity of the surface of the ingot having a circular cross section.
According to the running of the roll in the length direction of the ingot, it is configured to be able to move along the ingot, but may be configured to be able to move independently of the running of the roll in a certain range. .. If necessary, the turning depth can be changed by changing the position of the ingot in the radial direction.
【0018】切削工具を鋳塊の表面付近に沿って円周方
向に回転し得るように構成するためには、例えば中空軸
に固定して、中空軸を回転させ、その中空部に鋳塊を貫
通させる。中空軸に複数の、例えば4本の切削工具を取
付けることができるが、切削工具の数が多過ぎると、工
具の交換に時間を要し、工具の間での切削代の調製も難
しくなるので、円周均等分割で4本以下が好ましい。In order to be able to rotate the cutting tool in the circumferential direction along the vicinity of the surface of the ingot, for example, the ingot is fixed to the hollow shaft, the hollow shaft is rotated, and the ingot is placed in the hollow portion. To penetrate. It is possible to attach multiple, for example, four cutting tools to the hollow shaft, but if the number of cutting tools is too large, it will take time to replace the tools and it will be difficult to adjust the cutting allowance between the tools. It is preferable that the number of lines is 4 or less by dividing the circumference evenly.
【0019】本発明の鋳塊表面切削方法および装置は、
特に横型連続鋳造による円断面鋳塊の表面切削に適す
る。しかし、縦型連続鋳造プロセスにも適用可能であ
る。また、本発明の鋳塊表面切削装置は無人運転も可能
である。The ingot surface cutting method and apparatus of the present invention are
It is particularly suitable for surface cutting of circular ingots by horizontal continuous casting. However, it is also applicable to the vertical continuous casting process. Further, the ingot surface cutting device of the present invention can also be operated unattended.
【0020】[0020]
【作用】本発明の鋳塊表面切削方法によると、連続鋳造
による円断面の鋳塊の表面付近を、鋳塊の半径方向に固
定され、鋳塊の長さ方向および円周方向に移動すること
が可能な切削工具で切削するため、切削工具が鋳塊の直
径方向への変位に追従できるから、曲がり(蛇行を含
む)その他の変形や外径変動等による鋳塊の直径方向へ
の変位があっても、削り残しを生ずることなく、表面付
近を均等に切削でき、また鋳造の間欠運転による慣性力
のために工具の寿命が短縮することがない。それ故、連
続鋳造による円断面の鋳塊の表面付近の切削を、ビレッ
トに切断後に旋盤加工等によって行う必要がない。According to the ingot surface cutting method of the present invention, the vicinity of the surface of the ingot having a circular cross section formed by continuous casting is fixed in the radial direction of the ingot and moved in the length direction and the circumferential direction of the ingot. Since the cutting tool is capable of following the displacement of the ingot in the diametrical direction, the ingot can be displaced in the diametrical direction due to bending (including meandering) and other deformations and outer diameter fluctuations. Even if it exists, the vicinity of the surface can be cut evenly without leaving uncut residue, and the tool life will not be shortened due to the inertial force due to the intermittent operation of casting. Therefore, it is not necessary to perform cutting near the surface of the ingot having a circular cross section by continuous casting by lathe processing or the like after cutting the billet.
【0021】また、本発明の鋳塊表面切削装置は、少な
くとも2対の、半径方向の断面がM字形のロールを具
え、各対のロールの間に鋳塊を上下方向から挟み込ん
で、鋳塊の半径方向に関してそれらを互いに固定した上
で、ロールの異なる対の間に設けられた切削工具を、切
削工具回転手段により鋳塊と同心円上を強制的に回転す
るとともに、ロール駆動手段により少なくとも一つのロ
ールを回転させて、切削装置を鋳塊の外周に沿って長さ
方向に移動するように構成されているので、鋳塊の曲が
り(蛇行を含む)、その他の変形、外径変動等による、
直径方向への変位があっても、切削工具は鋳塊の直径方
向への変位に追従しつつ表面を均等に切削する。従っ
て、鋳塊の曲がり等があっても、削り残しを生ずること
なく、また工具の寿命を短縮することなく、連続した円
断面鋳塊の表面を均等に切削して、表面付近の欠陥を除
去することができる。Further, the ingot surface cutting device of the present invention comprises at least two pairs of rolls each having an M-shaped cross section in the radial direction, and the ingots are vertically sandwiched between each pair of rolls to form an ingot. After fixing them with respect to each other in the radial direction, a cutting tool provided between different pairs of rolls is forcibly rotated on the concentric circle with the ingot by the cutting tool rotating means, and at least one by the roll driving means. It is configured to rotate the two rolls and move the cutting device in the length direction along the outer circumference of the ingot, so that due to bending (including meandering) of the ingot, other deformation, outer diameter fluctuation, etc. ,
Even if there is diametrical displacement, the cutting tool follows the diametrical displacement of the ingot and evenly cuts the surface. Therefore, even if there is bending of the ingot, the surface of the continuous ingot of circular cross section is evenly cut without leaving uncut residue and shortening the tool life, and the defects near the surface are removed. can do.
【0022】[0022]
【実施例】以下に実施例を示し、本発明のさらに具体的
な説明とする。 〔実施例1〕本発明による鋳塊表面切削装置の一例を図
1ないし図3に示す。図1に示すように鋳塊表面切削装
置(以下、単に表面切削装置と言う)6は、2対の、外
周の断面がV字形のロール8a,9a,8b,9b、V
型ロール8a,9aをV型ロール8b,9bに向かって
移動させる油圧シリンダ10a,10b、切削工具11
a,11bを固定した主軸12、その外周に設けられた
歯車13、歯車13に係合するピニオン14、それを回
転させるための工具回転用電動モータ15、V型ロール
9aの駆動源となるロール駆動用電動モータ16、減速
機17、V型ロール9aと減速機17を連結するチェー
ン18、切屑シュート19を具えている。V型ロール8
a,9a,8b,9b、油圧シリンダ10a,10b、
主軸12、工具回転用電動モータ15、ロール駆動用電
動モータ16、減速機17、切屑シュート19は、フレ
ーム20に固定されている。鋳塊5はV型ロール8aと
9aの間およびV型ロール8bと9bの間に挟み込まれ
る。EXAMPLES The following examples are given to further illustrate the present invention. [Embodiment 1] An example of an ingot surface cutting device according to the present invention is shown in FIGS. 1 to 3. As shown in FIG. 1, an ingot surface cutting device (hereinafter, simply referred to as a surface cutting device) 6 has two pairs of rolls 8a, 9a, 8b, 9b, V having V-shaped cross-sections on the outer circumference.
Hydraulic cylinders 10a and 10b for moving the mold rolls 8a and 9a toward the V-shaped rolls 8b and 9b, and a cutting tool 11
a and 11b are fixed to the main shaft 12, a gear 13 provided on the outer periphery thereof, a pinion 14 engaging with the gear 13, an electric motor 15 for rotating the tool for rotating the same, a roll serving as a drive source of the V-shaped roll 9a. An electric motor 16 for driving, a speed reducer 17, a chain 18 connecting the V-shaped roll 9a and the speed reducer 17, and a chip chute 19 are provided. V type roll 8
a, 9a, 8b, 9b, hydraulic cylinders 10a, 10b,
The spindle 12, the tool rotating electric motor 15, the roll driving electric motor 16, the speed reducer 17, and the chip chute 19 are fixed to the frame 20. The ingot 5 is sandwiched between the V-shaped rolls 8a and 9a and between the V-shaped rolls 8b and 9b.
【0023】図2に示すように、フレーム20の下面に
は振れ止めロール21,22が設けられ、床に固定され
たガイドレール23の上部がそれらの間に位置する。As shown in FIG. 2, steady rests 21 and 22 are provided on the lower surface of the frame 20, and the upper part of the guide rail 23 fixed to the floor is located between them.
【0024】図3に示すように、主軸12は中空で、太
い部分の内側に切削工具11a,11bが固定され、細
い部分は軸受31a,31bでフレーム20に、回転可
能に支持されている。フレーム20の下部の四隅には、
ねじ32a,32bで上下できるローラ33a,33b
が設けられている。As shown in FIG. 3, the main shaft 12 is hollow, the cutting tools 11a and 11b are fixed inside the thick portion, and the thin portion is rotatably supported by the frame 20 by bearings 31a and 31b. In the lower four corners of the frame 20,
Rollers 33a, 33b that can be moved up and down with screws 32a, 32b
Is provided.
【0025】図1乃至図3に示す装置による切削の手順
を、以下に説明する。まず、表面切削装置6がローラ3
3a,33bで床上に支持された状態で、ねじ32a,
32bを回してフレーム20の高さを調節し、鋳塊5を
V型ロール8aと9aおよびV型ロール8bと9bの間
に挿入する。鋳塊5が主軸12の中空部のほぼ中心に位
置するように、V型ロール9aと9bの高さをねじ32
a,32bにより調節する。油圧シリンダ10a,10
bを作動させて、V型ロール8a,8bをV型ロール9
a,9bに向かって押し付けるとともに、ねじ32a,
32bでローラ33a,33bを上方へ後退させると、
鋳塊5はV型ロール8aと9a、およびV型ロール8b
と9bの間に挟み込まれ、切削装置6全体の重量は鋳塊
5自体により支えられる。そのためには、切削装置6の
自重により鋳塊5が撓まないことが必要である。工具回
転用電動モータ15およびロール駆動用電動モータ16
を回転させて、鋳塊5の表面切削を行う。The procedure of cutting by the apparatus shown in FIGS. 1 to 3 will be described below. First, the surface cutting device 6 uses the roller 3
While being supported on the floor by the screws 3a, 33b, the screws 32a,
32b is turned to adjust the height of the frame 20, and the ingot 5 is inserted between the V-shaped rolls 8a and 9a and the V-shaped rolls 8b and 9b. The height of the V-shaped rolls 9a and 9b is adjusted by the screw 32 so that the ingot 5 is located substantially in the center of the hollow portion of the main shaft 12.
a, 32b. Hydraulic cylinders 10a, 10
b to operate the V-shaped rolls 8a and 8b to the V-shaped roll 9
a, 9b while pressing the screw 32a,
When the rollers 33a and 33b are retracted upward by 32b,
The ingot 5 includes V-shaped rolls 8a and 9a and V-shaped roll 8b.
9b, the weight of the entire cutting device 6 is supported by the ingot 5 itself. For that purpose, it is necessary that the ingot 5 is not bent by the own weight of the cutting device 6. Tool rotating electric motor 15 and roll driving electric motor 16
The surface of the ingot 5 is cut by rotating.
【0026】工具回転用電動モータ15およびロール駆
動用電動モータ16の回転による切削の動作を以下に説
明する。ロール駆動用電動モータ16の回転により、減
速機17、チェーン18を介してV型ロール9aが回転
し、V型ロール9aは鋳塊5に沿って移動する。その結
果、切削装置6全体が鋳塊5の表面に沿って、後者の長
さ方向に移動する。The cutting operation by the rotation of the tool rotating electric motor 15 and the roll driving electric motor 16 will be described below. The rotation of the electric motor 16 for driving the rolls causes the V-shaped roll 9a to rotate through the speed reducer 17 and the chain 18, and the V-shaped roll 9a moves along the ingot 5. As a result, the entire cutting device 6 moves along the surface of the ingot 5 in the length direction of the latter.
【0027】一方、工具回転用電動モータ15の回転は
ピニオン14、歯車13を介して主軸12に伝達され、
軸受31a,31bで支持された主軸12が回転するの
で、主軸12に固定された切削工具11a,11bが回
転して、鋳塊5の表面切削が行われる。鋳塊5の長さ方
向での表面切削装置6の移動が、切削工具11a,11
bによる鋳塊の円周方向での切削の進行に応じた速度に
なるように、ロール回転用電動モータ16の回転速度を
選ぶと、切削工具11a,11bは鋳塊5の表面付近を
削りながら鋳塊5の長さ方向に移動し、削り屑は切屑シ
ュート19を経て排出され、廃棄または回収される。On the other hand, the rotation of the electric motor 15 for rotating the tool is transmitted to the main shaft 12 via the pinion 14 and the gear 13.
Since the main shaft 12 supported by the bearings 31a and 31b rotates, the cutting tools 11a and 11b fixed to the main shaft 12 rotate and the surface of the ingot 5 is cut. The movement of the surface cutting device 6 in the length direction of the ingot 5 causes the cutting tools 11a, 11 to move.
When the rotation speed of the electric motor 16 for rotating the roll is selected so that the speed corresponds to the progress of the cutting of the ingot in the circumferential direction by b, the cutting tools 11a and 11b cut the vicinity of the surface of the ingot 5 while cutting. Moving in the length direction of the ingot 5, the shavings are discharged through the chip chute 19 and discarded or collected.
【0028】旋削の反作用で表面切削装置6には切削工
具11a,11bの回転と反対方向に回転するモーメン
トが作用する。表面切削装置6の自重によるモーメント
がこれを上回る場合には、表面切削装置6の逆転は起こ
らないが、反作用が自重を上回った場合にも、振れ止め
ロール21,22がガイドレール23の上部に当たっ
て、逆転が防止される。ただし、振れ止めロール21,
22とガイドレール23の当接は、鋳塊5の表面への表
面切削装置6の追従を全く妨げない。Due to the reaction of turning, a moment that rotates in the opposite direction to the rotation of the cutting tools 11a and 11b acts on the surface cutting device 6. When the moment due to the own weight of the surface cutting device 6 exceeds this, the reverse rotation of the surface cutting device 6 does not occur, but even when the reaction exceeds the own weight, the steady rest rolls 21 and 22 hit the upper part of the guide rail 23. , Reverse rotation is prevented. However, the steady rest 21,
The contact between the guide rail 22 and the guide rail 23 does not prevent the surface cutting device 6 from following the surface of the ingot 5.
【0029】引出機3による鋳塊5の引出すなわち連続
鋳造を、間欠的に行っても、表面切削装置6は鋳塊5の
移動に追従するから、鋳塊5の慣性力により、切削工具
11a,11bへの過大な負荷、従って工具の寿命の短
縮を生ずることはない。The surface cutting device 6 follows the movement of the ingot 5 even if the drawing of the ingot 5 by the drawer 3 or the continuous casting is performed intermittently. Therefore, the cutting tool 11a is moved by the inertia force of the ingot 5. , 11b does not result in an excessive load and thus a shortened tool life.
【0030】上述の例では、上側のV型ロール8a,8
bを上下可能にし、下側のV型ロール9aを駆動した
が、反対に下側のV型ロール9a,9bを上下可能に
し、上側のV型ロール9aを駆動してもよい。上下可能
なロールのいずれかを駆動してもよい。また、チェーン
18の代わりにベルトを用いてもよい。In the above example, the upper V-shaped rolls 8a, 8
Although b can be moved up and down and the lower V-shaped roll 9a is driven, conversely, the lower V-shaped rolls 9a and 9b can be moved vertically and the upper V-shaped roll 9a can be driven. You may drive either of the rolls which can be moved up and down. A belt may be used instead of the chain 18.
【0031】〔応用例1〕上述の表面切削装置6を快削
性黄銅の横型連続鋳造工程に適用した例を図4に示す。
横型連続鋳造工程は、保持炉1、水冷鋳型2、引出し機
3、表面切削装置6、切断機4、それらの間に配置され
た固定スタンドロール7a,7b,7cから成る。表面
切削装置6は引出機3と切断機4の間に位置し、固定ス
タンドロール7bおよび7cによって支えられた鋳塊5
により支持されている。[Application Example 1] FIG. 4 shows an example in which the above-mentioned surface cutting device 6 is applied to a horizontal continuous casting process of free-cutting brass.
The horizontal continuous casting process comprises a holding furnace 1, a water-cooled mold 2, a drawing machine 3, a surface cutting device 6, a cutting machine 4, and fixed stand rolls 7a, 7b, 7c arranged therebetween. The surface cutting device 6 is located between the drawer 3 and the cutter 4, and the ingot 5 supported by the fixed stand rolls 7b and 7c.
It is supported by.
【0032】保持炉1から水冷鋳型2を通って直径25
4mmの鋳塊5を引出機3により18秒毎に0.4秒間、
21mmずつ引き出す(停止時間17.6秒)ことによ
り、快削性黄銅を連続鋳造する。引出の平均速度は1.2
mm/secである。From the holding furnace 1 through the water-cooled mold 2, the diameter 25
A 4 mm ingot 5 was drawn by the drawer 3 every 18 seconds for 0.4 seconds,
Free-cutting brass is continuously cast by pulling out by 21 mm each (stop time 17.6 seconds). Average withdrawal speed is 1.2
mm / sec.
【0033】鋳塊5の先端付近に、図5に示す鋼管面取
り用切削機を利用して切削バイト51により、図6に示
す形状の溝61を作る。溝61は、幅を切削工具11
a,11bの幅より若干広く、深さを切削代と同じにす
る。切削バイト51(図5)は電動モータ52によりピ
ニオンギア53およびギア54を介して、鋳塊5の円周
方向に回転される。A groove 61 having the shape shown in FIG. 6 is formed near the tip of the ingot 5 by a cutting tool 51 using a steel pipe chamfering cutting machine shown in FIG. The groove 61 has a width of the cutting tool 11
It is slightly wider than the widths of a and 11b, and the depth is the same as the cutting allowance. The cutting tool 51 (FIG. 5) is rotated in the circumferential direction of the ingot 5 by the electric motor 52 via the pinion gear 53 and the gear 54.
【0034】表面切削装置6の切削工具11a,11b
を図6に示した溝61に挿入し、間隔を248mmに設
定し、主軸12を240rpmで回転させるとともに、
表面切削装置6を連続鋳造の平均速度に等しい1.2mm
/secの速度で、鋳塊5の移動と逆方向に自走させ
て、無潤滑で鋳塊5の表面切削を行った。直径248m
mの真円断面をもつ快削性黄銅鋳塊が連続的に得られ
た。これを切断機4でビレットに切断して、製品とす
る。工具回転用電動モータ15は5.5kW、ロール駆動
用電動モータ16は1.5kW、切削工具11a,11b
はすくい角6°、逃げ角6°の交換可能な超硬チップを
着けた旋削用バイトである。Cutting tools 11a, 11b of the surface cutting device 6
Is inserted into the groove 61 shown in FIG. 6, the interval is set to 248 mm, the main shaft 12 is rotated at 240 rpm, and
Surface cutting device 6 equal to the average speed of continuous casting 1.2 mm
The ingot 5 was self-propelled in the direction opposite to the movement of the ingot 5 at a speed of / sec to perform surface cutting of the ingot 5 without lubrication. Diameter 248m
A free-cutting brass ingot having a circular cross section of m was continuously obtained. This is cut into billets by a cutting machine 4 to obtain a product. The tool rotating electric motor 15 is 5.5 kW, the roll driving electric motor 16 is 1.5 kW, and the cutting tools 11a and 11b.
It is a turning tool with replaceable carbide tips with a rake angle of 6 ° and a clearance angle of 6 °.
【0035】〔応用例2〕鋳塊表面の切削量(深さ)を
大きくするため、図7に示すように、鋳塊5に沿って実
施例に述べたと同じ2台の表面切削装置71,72を設
置した。引出機、切断機、固定スタンドロールは図示を
省略した。[Application Example 2] In order to increase the amount of cutting (depth) on the surface of the ingot, as shown in FIG. 7, two surface cutting devices 71, which are the same as those described in the embodiment along the ingot 5, 72 was installed. Illustration of the drawer, the cutter, and the fixed stand roll is omitted.
【0036】〔応用例3〕図8に示すように、保持炉1
に3個の水冷鋳型2,2,2を設けて、3本の鋳塊5,
5,5を同時に連続鋳造し、それぞれに表面切削装置6
を装着した。[Application 3] As shown in FIG. 8, a holding furnace 1
3 water-cooled molds 2, 2 and 2 are installed in the
5 and 5 are continuously cast at the same time, and the surface cutting device 6
I put on.
【0037】[0037]
【発明の効果】本発明の表面切削方法によれば、ビレッ
トの旋盤加工や熱間皮剥きによらないで、連続鋳造によ
る円断面の鋳塊の表面付近を均等に切削して、鋳塊の断
面を真円に仕上げることができる。また、本発明の表面
切削装置によれば、鋳塊の曲がり(蛇行を含む)その他
の変形や外径変動等による直径方向への変位があって
も、削り残しを生ずることなく、連続鋳造による円断面
鋳塊の表面付近を均等に切削して、鋳塊の断面を真円に
仕上げることができる。また、鋳塊の曲がり等があって
も、連続鋳造装置の間欠運転で工具の寿命の短縮を招く
ことがない。EFFECT OF THE INVENTION According to the surface cutting method of the present invention, the vicinity of the surface of the ingot having a circular cross section by continuous casting is evenly cut without depending on the lathe working of the billet and the hot stripping, and The cross section can be finished into a perfect circle. Further, according to the surface cutting device of the present invention, even if the ingot is bent (including meandering) or is deformed in the diametrical direction due to the outer diameter variation or the like, the uncut residue does not occur and continuous casting is performed. The cross section of the ingot can be finished into a perfect circle by evenly cutting the vicinity of the surface of the ingot. Even if the ingot is bent, the tool life is not shortened by the intermittent operation of the continuous casting apparatus.
【図1】本発明による表面切削装置の一実施例を示す斜
視図である。FIG. 1 is a perspective view showing an embodiment of a surface cutting device according to the present invention.
【図2】本発明による表面切削装置の一実施例の正面図
である。FIG. 2 is a front view of an embodiment of a surface cutting device according to the present invention.
【図3】本発明による表面切削装置の一実施例の側面図
である。FIG. 3 is a side view of an embodiment of a surface cutting device according to the present invention.
【図4】本発明による表面切削装置の応用例の一つを示
す説明図である。FIG. 4 is an explanatory view showing one application example of the surface cutting device according to the present invention.
【図5】本発明による表面切削装置の応用例で用いた溝
加工装置の斜視図である。FIG. 5 is a perspective view of a groove processing device used in an application example of the surface cutting device according to the present invention.
【図6】本発明による表面切削装置の応用例で、鋳塊の
先端付近に形成させた溝を示す斜視図である。FIG. 6 is a perspective view showing a groove formed near the tip of an ingot in an application example of the surface cutting device according to the present invention.
【図7】本発明による表面切削装置の他の応用例を示す
説明図である。FIG. 7 is an explanatory diagram showing another application example of the surface cutting device according to the present invention.
【図8】本発明による表面切削装置の別の応用例を示す
説明図である。FIG. 8 is an explanatory view showing another application example of the surface cutting device according to the present invention.
【図9】横型連続鋳造装置を示す説明図である。FIG. 9 is an explanatory view showing a horizontal continuous casting device.
【図10】横型連続鋳造装置における鋳塊の移動の速度
を定性的に示すグラフ。FIG. 10 is a graph qualitatively showing the moving speed of the ingot in the horizontal continuous casting apparatus.
1 保持炉 51 切
削バイト 2 水冷鋳型 52 電
動モータ 3 引出機 53 ピ
ニオンギア 4 切断機 54 ギ
ア 5 鋳塊 61 溝 6 表面切削装置 71 表
面切削装置 7a,7b,7c 固定スタンドロール 72 表
面切削装置 8a,8b V型ロール 9a,9b V型ロール 10a,10b 油圧シリンダ 11a,11b 切削工具 12 主軸 13 歯車 14 ピニオン 15 工具回転用電動モータ 16 ロール駆動用電動モータ 17 減速機 18 チェーン 19 切屑シュート 20 フレーム 21,22 振れ止めロール 23 ガイドレール 31a,31b 軸受 32a,32b ねじ 33a,33b ローラ1 Holding Furnace 51 Cutting Tool 2 Water Cooling Mold 52 Electric Motor 3 Drawer 53 Pinion Gear 4 Cutting Machine 54 Gear 5 Ingot 61 Groove 6 Surface Cutting Device 71 Surface Cutting Device 7a, 7b, 7c Fixed Stand Roll 72 Surface Cutting Device 8a, 8b V-type roll 9a, 9b V-type roll 10a, 10b Hydraulic cylinder 11a, 11b Cutting tool 12 Spindle 13 Gear wheel 14 Pinion 15 Tool rotation electric motor 16 Roll drive electric motor 17 Reducer 18 Chain 19 Chip chute 20 Frame 21, 22 steady rest roll 23 guide rail 31a, 31b bearing 32a, 32b screw 33a, 33b roller
Claims (2)
前記鋳塊の軸心とほぼ同軸の円軌跡上を回転しつつ、長
さ方向に移動できる切削工具により切削する鋳塊表面切
削方法において、 前記鋳塊の前記軸心に垂直な断面内を、前記鋳塊の表面
の位置に応じて移動可能な前記切削工具を用い、前記鋳
塊をビレットに切断する前に前記切削を行うことを特徴
とする、鋳塊表面切削方法。1. A surface of a long ingot having a circular cross section,
While rotating on a circular locus substantially coaxial with the axis of the ingot, in the ingot surface cutting method of cutting with a cutting tool that can move in the longitudinal direction, in a cross section perpendicular to the axis of the ingot, A method for cutting an ingot surface, characterized by using the cutting tool movable according to the position of the surface of the ingot and performing the cutting before cutting the ingot into a billet.
前記鋳塊の軸心とほぼ同軸の円軌跡上を回転しつつ、長
さ方向に移動して切削する切削工具を備えた鋳塊表面切
削装置において、 前記鋳塊の長さ方向の少なくとも2点において前記鋳塊
を挟持する、少なくとも2対の挟持ロールと、 前記少なくとも2対の挟持ロールを支持することによ
り、前記鋳塊によって空間的に支持されるフレームと、 前記フレームによって支持され、前記切削工具を前記回
転させる回転部材と、 前記挟持ロールの少なくとも一つを回転させる第一の駆
動手段と、 前記回転部材を駆動する第二の駆動手段を備えることを
特徴とする、鋳塊表面切削装置。2. Near the surface of a long ingot having a circular cross section,
An ingot surface cutting device provided with a cutting tool that moves in a length direction and cuts while rotating on a circular locus substantially coaxial with an axis of the ingot, at least two points in a length direction of the ingot. In at least two pairs of sandwiching rolls for sandwiching the ingot, a frame spatially supported by the ingot by supporting the at least two pairs of sandwiching rolls, and a frame supported by the frame and the cutting. An ingot surface cutting device comprising: a rotating member that rotates the tool; a first driving unit that rotates at least one of the sandwiching rolls; and a second driving unit that drives the rotating member. ..
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP32002591A JPH05131302A (en) | 1991-11-07 | 1991-11-07 | Method for cutting outer surface of ingot and device therefor |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP32002591A JPH05131302A (en) | 1991-11-07 | 1991-11-07 | Method for cutting outer surface of ingot and device therefor |
Publications (1)
Publication Number | Publication Date |
---|---|
JPH05131302A true JPH05131302A (en) | 1993-05-28 |
Family
ID=18116912
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP32002591A Pending JPH05131302A (en) | 1991-11-07 | 1991-11-07 | Method for cutting outer surface of ingot and device therefor |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH05131302A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2008062326A (en) * | 2006-09-06 | 2008-03-21 | Hitachi Plant Technologies Ltd | Band saw type pipe cutter and pipe cutting method |
KR102035228B1 (en) * | 2019-05-15 | 2019-10-25 | 대한민국 | Ship propulsion shaft assembly type processing equipment and manufacturing method thereof |
-
1991
- 1991-11-07 JP JP32002591A patent/JPH05131302A/en active Pending
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2008062326A (en) * | 2006-09-06 | 2008-03-21 | Hitachi Plant Technologies Ltd | Band saw type pipe cutter and pipe cutting method |
KR102035228B1 (en) * | 2019-05-15 | 2019-10-25 | 대한민국 | Ship propulsion shaft assembly type processing equipment and manufacturing method thereof |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JPS608882Y2 (en) | Continuously cast slab cutting burr removal equipment | |
US5951220A (en) | Surface cutting method and apparatus for hot-rolled steel products | |
CN211103134U (en) | Spiral pipe chamfering machine | |
KR102124091B1 (en) | Side-corner Deburring Device of Steel Material including Slab | |
CN210996261U (en) | Roller forming device | |
US2264287A (en) | Metallurgical product and method of making same | |
CN103042189A (en) | Hammer-tool de-burring machine for continuous cast rectangular blanks | |
US3492918A (en) | Method and apparatus for conditioning the corners of cast billets | |
JPH05131302A (en) | Method for cutting outer surface of ingot and device therefor | |
US3866449A (en) | Method for dividing an elongated body into separate pieces | |
JP3052505B2 (en) | Drum type running shear | |
KR200174706Y1 (en) | Auto-apparatus for removing wrong cold coil | |
US4070739A (en) | Manufacture of metal strip | |
CN203030857U (en) | Hammer cutter type continuous casting rectangular blank deburring machine | |
KR100802047B1 (en) | Method and Apparatus for Burr Removal from Strip | |
KR20040031143A (en) | Device for removing a edge scrap from a strip | |
JPH04135116A (en) | Pipe cutting method and device thereof | |
KR101751771B1 (en) | Apparatus for cutting steel plate in continuous casting process and cutting method using the same | |
JPS6037156Y2 (en) | Fusing slag removal equipment for steel billets | |
CN214768158U (en) | Belt pulley processing is with spinning device with regulatory function | |
CN220006196U (en) | Non ferrous metal calendering processing side cut device | |
US3129639A (en) | Roll groove milling machine | |
KR100900630B1 (en) | An apparatus for taper-rolling an end of wire rod | |
JP4157111B2 (en) | Tapered steel pipe manufacturing method | |
JP4692350B2 (en) | Steel plate end face machining method and apparatus |