JP2505854Y2 - Fixed position stop device for spindle in upright ballboard - Google Patents
Fixed position stop device for spindle in upright ballboardInfo
- Publication number
- JP2505854Y2 JP2505854Y2 JP1992035609U JP3560992U JP2505854Y2 JP 2505854 Y2 JP2505854 Y2 JP 2505854Y2 JP 1992035609 U JP1992035609 U JP 1992035609U JP 3560992 U JP3560992 U JP 3560992U JP 2505854 Y2 JP2505854 Y2 JP 2505854Y2
- Authority
- JP
- Japan
- Prior art keywords
- shaft
- motor
- quill
- spindle
- stop
- 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 - Lifetime
Links
Landscapes
- Drilling And Boring (AREA)
Description
【0001】[0001]
【産業上の利用分野】本考案は、直立ボール盤におい
て、主軸の工具の交換を容易になし得るように、主軸を
常にそのコツタ孔が正確にクイルのコツタ孔と合致する
定位置に停止させる主軸の定位置停止装置に関するもの
である。BACKGROUND OF THE INVENTION The present invention relates to an upright drilling machine, in which a spindle is always stopped at a fixed position such that its knuckle hole exactly coincides with that of the quill so that the tool of the spindle can be easily replaced. The fixed position stop device of
【0002】[0002]
【従来の技術】従来のこの種の直立ボール盤(以下これ
を単にボール盤という。)における主軸の定位置停止装
置は、見当らない。2. Description of the Related Art A fixed position stop device for a spindle in a conventional upright drilling machine of this type (hereinafter, simply referred to as a drilling machine) is not found.
【0003】従来のこの種のボール盤における主軸の停
止は、スイツチを切つて自然停止に任せている。In the conventional drilling machine of this type, the main shaft is stopped by switching the switch to a natural stop.
【0004】[0004]
【考案が解決しようとする課題】上記従来のボール盤に
おいては、スイツチを切つて主軸を停止させたときの主
軸の停止位置がまちまちで、その主軸のコツタ孔の向き
はその都度異なり、該主軸のコツタ孔がクイルのコツタ
孔に合致することは殆んど無い。In the above-mentioned conventional drilling machine, when the switch is cut to stop the spindle, the stopping position of the spindle varies, and the direction of the knuckle hole of the spindle is different each time. It is unlikely that the kotatsu holes will match the quill holes.
【0005】一方、この種のボール盤において、主軸の
ドリル等の工具を交換するために主軸の工具を取外すと
きには、コツタをクイルのコツタ孔と主軸のコツタ孔内
に叩き込み、そのコツタにより工具を押出して取外す。On the other hand, in this type of drilling machine, when the tool of the spindle is removed in order to replace the tool such as the drill of the spindle, the knucker is hammered into the knuckle hole and the knuckle hole of the spindle, and the tool is extruded by the knuckle. To remove.
【0006】従つて、従来のボール盤においては、主軸
の工具を交換するために主軸の工具を取外す都度、主軸
の停止後、コツタを挿入するために、作業者がクイルの
コツタ孔内を覗き見ながら主軸を手で回転させてその主
軸のコツタ孔をクイルのコツタ孔に合致させなければな
らない。Therefore, in the conventional drilling machine, every time the tool of the main spindle is removed to replace the tool of the main spindle, after the main spindle is stopped, the worker inserts a knuckle into the quill hole of the quill. However, the main shaft must be manually rotated so that the cotter hole in the main shaft matches the cotter hole in the quill.
【0007】ところで、この種のボール盤においては、
ボール盤の性格上、高速回転をするモータの回転軸から
20乃至30個の歯車により歯車減速をすることで、主
軸はドリル加工に適した回転になつている。By the way, in this type of drilling machine,
Due to the nature of the drilling machine, the spindle is rotated by 20 to 30 gears from the rotary shaft of the motor that rotates at high speed, so that the spindle is rotated suitable for drilling.
【0008】そのために、力学上、高速側、すなわちモ
ータ側は非常に小さい力で回転させることができるけれ
ども、逆に低速側、すなわち主軸側は大きな力でないと
回転させることができない。Therefore, in terms of dynamics, the high-speed side, that is, the motor side can be rotated with a very small force, but conversely, the low-speed side, that is, the main shaft side cannot be rotated without a large force.
【0009】従つて、1仕事に関係するドリルが、例え
ば3種類ある場合には、作業者は1種類のドリル加工が
終る毎に、主軸のコツタ孔をクイルのコツタ孔に合致さ
せるために、手で主軸を力一杯回転させなければならな
いことになり、そのドリルの交換に大きな労力が必要で
ある上に、大変手間が掛つて作業上不便である。Therefore, when there are, for example, three kinds of drills related to one work, the operator must match the knuckle hole of the main shaft with the knuckle hole of the quill each time one type of drilling is completed. This means that the spindle must be fully rotated by hand, which requires a great deal of labor for exchanging the drill, and it is very time-consuming and inconvenient for work.
【0010】特に、大型のボール盤においては、回転減
速比も大きくて主軸を手で容易に回転させることは不可
能である。従つて、この場合には、作業者は、主軸回転
の変速レバーを中立位置に入れて主軸が軽く回転するよ
うな構成にしているけれども、この場合には、ドリルの
交換のときに作業の流れが中断し、更に手間が掛つて作
業上不便な点である。Particularly, in a large-sized drilling machine, the rotation reduction ratio is large, and it is impossible to easily rotate the main shaft by hand. Therefore, in this case, the operator puts the speed change lever for rotating the main shaft in the neutral position so that the main shaft rotates lightly, but in this case, when the drill is replaced, the work flow is changed. Is interrupted, and it takes more time and labor, which is inconvenient for work.
【0011】[0011]
【課題を解決するための手段】本考案は、ボール盤のス
イツチを切つたとき、主軸は常にそのコツタ孔が正確に
クイルのコツタ孔に合致して停止し、上記クイルと主軸
のコツタ孔内にコツタを容易円滑に叩き込んで工具を押
出し、主軸の工具の交換を迅速になし得て作業上便利な
直立ボール盤における主軸の定位置停止装置を提供する
ことを目的とする。According to the present invention, when the switch of the drilling machine is cut, the main shaft always stops when its knuckle hole is exactly aligned with the quill hole of the quill. An object of the present invention is to provide a fixed position stopping device for a spindle in an upright drilling machine which allows the knucker to be easily and smoothly struck to extrude the tool to quickly replace the tool on the spindle, and which is convenient for work.
【0012】すなわち、機筐(1)の前方下部に昇降自
在に嵌合して作動軸(20)のピニオン(21)にラツ
ク(18)が噛合するクイル(2)の前後壁の下部には
互いに対向する縦長コツタ孔(10)を穿設して下端に
は当て金(19)を設け、クイル(2)の上方において
機筐(1)の前方上部には小径および大径の歯車(2
2),(23)を設けた受動筒(4)を回転自在に支持
し、クイル(2)内に挿通して回転自在に支持した主軸
(5)の上方スプライン軸(6)を受動筒(4)内のス
プライン孔に摺動自在に係合し、その主軸(5)の下部
でクイル(2)の縦長コツタ孔(10)と対向する位置
には工具(7)のテーパー挿着孔(8)の上端部に連通
する縦長コツタ孔(9)を穿設し、受動筒(4)にドツ
グ(11)を取付けると共に該ドツグ(11)に対向し
て機筐(1)に定位置を関知するセンサ(12)を接近
配置し、機筐(1)の後部にモータ(3)を取付けて中
間部に中間軸(24)および入力軸(25)を回転自在
に並架し、モータ(3)の原動軸(26)と入力軸(2
5)をベルト伝動機構(27)により連結し、その入力
軸(25)に駆動歯車(28)を取付けて中間軸(2
4)には入力軸(25)の駆動歯車(28)に噛合した
まま交互に受動筒(4)の小径および大径の歯車(2
2),(23)に係脱する大径および小径の歯車(2
9),(30)を設けた変速歯車(31)を摺動可能に
嵌合し、機筐(1)には主軸(5)の定位置停止機能付
きインバータ(13),モータ(3)の始動および停止
スイツチ(14),(15)等を設け、モータ(3),
センサ(12),インバータ(13),始動および停止
スイツチ(14),(15)と電源(16)の間には、
その始動スイツチ(14)を操作すれば、モータ(3)
の原動軸(26)が始動し、停止スイツチ(15)を操
作すると、インバータ(13)の変速機能によりモータ
(3)にブレーキが作用しモータ(3)の原動軸(2
6)を急減速制御して一旦急減速停止させた後、低速回
転させ、その後、センサ(12)からの信号によりモー
タ(3)の原動軸(26)を停止させる電気回路を形成
して直立ボール盤における主軸の定位置停止装置を構成
し、ボール盤のスイツチを切つたとき、主軸は常にその
コツタ孔が正確にクイルのコツタ孔に合致して停止し、
上記クイルと主軸のコツタ孔内にコツタを容易円滑に叩
き込んで工具を押出し、主軸の工具の交換を迅速になし
得て作業上便利にする目的を、主軸のスプライン軸に摺
動自在に係合して主軸と一体で高速回転する受動筒にド
ツグを取付けると共に該ドツグに対向して機筐にセンサ
を接近配置し、停止スイツチを操作したとき、定位置停
止機能付きインバータの変速機能によりモータの原動軸
を急減速制御して一旦急減速停止させた後、低速回転さ
せ、その後、上記センサからの信号によつてモータの原
動軸を停止させることにより実現した。That is, the lower part of the front and rear walls of the quill (2) in which the rack (18) meshes with the lower part of the front of the machine casing (1) so as to be able to move up and down and engages with the pinion (21) of the operating shaft (20). Vertically extending cotter holes (10) are provided to face each other, and a bottom plate (19) is provided at the lower end, and small and large gears (2) are provided above the quill (2) in the front upper part of the machine casing (1).
2) and (23) are rotatably supported on the passive cylinder (4), and the upper spline shaft (6) of the main shaft (5) which is rotatably supported by being inserted into the quill (2) is connected to the passive cylinder (4). 4) Slidingly engages with the spline hole in the main shaft (5), and at the position facing the vertically elongated cotter hole (10) of the quill (2), a taper insertion hole ( 8) A vertically extending cotter hole (9) communicating with the upper end portion of 8) is formed, a dog (11) is attached to the passive cylinder (4), and a fixed position is set on the machine casing (1) so as to face the dog (11). The sensor (12) to be aware of is arranged close to the motor casing (1), the motor (3) is attached to the rear portion of the machine casing (1), and the intermediate shaft (24) and the input shaft (25) are rotatably arranged side by side in the middle portion of the motor casing (1). 3) drive shaft (26) and input shaft (2
5) is connected by a belt transmission mechanism (27), and a drive gear (28) is attached to the input shaft (25) of the intermediate shaft (2).
4) The small and large diameter gears (2) of the passive cylinder (4) are alternately arranged while meshing with the drive gear (28) of the input shaft (25).
2), (23) large and small diameter gear (2
9) and (30) provided with a speed change gear (31) slidably fitted therein, and the machine casing (1) includes an inverter (13) with a fixed position stopping function for the main shaft (5) and a motor (3). Starting and stopping switches (14), (15), etc. are provided, and the motor (3),
Between the sensor (12), the inverter (13), the start and stop switches (14), (15) and the power supply (16),
If the start switch (14) is operated, the motor (3)
When the drive shaft (26) of the motor is started and the stop switch (15) is operated, a brake is applied to the motor (3) by the speed change function of the inverter (13), and the drive shaft (2) of the motor (3) is operated.
6) Sudden deceleration control to suddenly decelerate and stop, then rotate at low speed, and then form an electric circuit that stops the driving shaft (26) of the motor (3) by a signal from the sensor (12). It constitutes a fixed position stop device of the spindle in the drilling machine, and when the switch of the drilling machine is cut, the spindle always stops when its knuckle hole exactly matches the quill hole.
The purpose is to slidably engage the spline shaft of the spindle for the purpose of swiftly tapping the knuckle into the quill hole of the quill and the spindle to push out the tool and quickly replace the tool of the spindle for convenient work. Then, the dog is mounted on the passive cylinder that rotates at high speed integrally with the main shaft, and the sensor is placed close to the machine casing so as to face the dog and the stop switch is operated. This is achieved by suddenly decelerating the drive shaft to stop suddenly, then rotating it at a low speed, and then stopping the drive shaft of the motor in response to a signal from the sensor.
【0013】[0013]
【実施例】図面は、本考案の一実施例を示し、その構成
を図面について説明すれば、(17)はボール盤の支柱
で、その支柱(17)の上端に機筐(1)の後部を固着
する。(2)は機筐(1)の前方下部に昇降自在に嵌合
したクイルで、その後面にラツク(18)を設け、前後
壁の下部には互いに対向する縦長コツタ孔(10)を穿
設して下端には当て金(19)を設ける。(20)はク
イル(2)の後方において機筐(1)の下部に挿通して
回転自在に横架した作動軸で、その機筐(1)内に設け
たピニオン(21)をクイル(2)のラツク(18)に
噛合させる。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The drawings show an embodiment of the present invention, and the construction thereof will be described. (17) is a support for a drilling machine, and the rear part of the machine casing (1) is provided at the upper end of the support (17). Stick to it. (2) is a quill that is fitted in the lower front part of the machine casing (1) so as to be able to move up and down, and a rack (18) is provided on its rear surface, and vertically elongated cotter holes (10) are formed in the lower parts of the front and rear walls. Then, a pad (19) is provided at the lower end. Reference numeral (20) denotes an operating shaft that is rotatably laterally inserted through a lower part of the machine casing (1) behind the quill (2), and a pinion (21) provided in the machine casing (1) is provided with a quill (2). ) Is engaged with the rack (18).
【0014】(4)はクイル(2)の上方において機筺
(1)の前方上部に回転自在に支持した受動筒で、その
上部に小径歯車(22)を、下部に大径歯車(23)を
それぞれ設ける。(5)はクイル(2)内に挿通して回
転自在に支持した主軸で、その上方突出部のスプライン
軸(6)を受動筒(4)内のスプライン孔に摺動自在に
係合し、主軸(5)の下部でクイル(2)のコツタ孔
(10)と対向する位置には、ドリル等の工具(7)の
テーパー挿着孔(8)の上端部に連通する縦長コツタ孔
(9)を穿設する。(7)は主軸(5)のテーパー挿着
孔(8)内に抜き差し可能に挿着した工具のドリルであ
る。Reference numeral (4) is a passive cylinder rotatably supported above the quill (2) in the front upper part of the machine casing (1), with a small diameter gear (22) on the upper part and a large diameter gear (23) on the lower part. Are provided respectively. (5) is a main shaft which is inserted into the quill (2) and is rotatably supported, and a spline shaft (6) of its upper protruding portion is slidably engaged with a spline hole in the passive cylinder (4). At a position below the spindle (5) facing the cotter hole (10) of the quill (2), a vertically long cotter hole (9) communicating with the upper end of the tapered insertion hole (8) of the tool (7) such as a drill. ) Is drilled. Reference numeral (7) is a drill of a tool which is detachably inserted into the tapered insertion hole (8) of the main shaft (5).
【0015】(11)は受動筒(4)の上方突出部の前
面に取付けたドツグで、該ドツグ(11)に対向して機
筐(1)上にセンサの近接スイツチ(12)を接近配置
する。Reference numeral (11) is a dog attached to the front surface of the upward protruding portion of the passive cylinder (4), and a proximity switch (12) of a sensor is closely arranged on the machine casing (1) so as to face the dog (11). To do.
【0016】(3)は機筐(1)の後部に取付けた汎用
のブレーキ付きモータ、または汎用のモータ、(2
4),(25)は機筐(1)の上方中間部に前後になし
て回転自在に並架した中間軸および入力軸で、モータ
(3)の原動軸(26)と入力軸(25)の上方突出部
をベルト伝動機構(27)により連結し、入力軸(2
5)の機筐(1)内には駆動歯車(28)を取付けて中
間軸(24)には駆動歯車(28)に大径歯車(29)
が噛合したまま交互に受動筒(4)の小径歯車(22)
と大径歯車(23)に係脱する大径歯車(29)および
小径歯車(30)を上下に設けた変速歯車(31)を摺
動可能に嵌合する。(3) is a general-purpose motor with a brake attached to the rear portion of the machine casing (1) or a general-purpose motor, (2)
Numerals 4) and (25) are an intermediate shaft and an input shaft that are rotatably arranged side by side in the front and rear direction in the upper intermediate portion of the machine casing (1). The driving shaft (26) and the input shaft (25) of the motor (3). Of the input shaft (2
A drive gear (28) is mounted in the machine casing (1) of 5), and a large diameter gear (29) is attached to the drive gear (28) on the intermediate shaft (24).
Alternately while meshing with each other Small gear wheel (22) of passive cylinder (4)
A gear wheel (31) having a large-diameter gear (29) and a small-diameter gear (30) which are engaged with and disengaged from the large-diameter gear (23) is slidably fitted.
【0017】(13)は機筐(1)の後面に取付けた主
軸(5)の定位置停止機能付きインバータ、(32)は
機筐(1)の前面に取付けた操作箱で、これにモータ
(3)の始動ボタンスイツチ(14),停止ボタンスイ
ツチ(15)等を設ける。そして、モータ(3),近接
スイツチ(12),インバータ(13),始動ボタンス
イツチ(14),停止ボタンスイツチ(15)および電
源(16)の間には、停止ボタンスイツチ(15)を操
作したとき主軸(5)はそのコツタ孔(9)が前後方向
に向きクイル(2)のコツタ孔(10)に合致して停止
する電気回路を形成する。(33)はクイル(2)と主
軸(5)のコツタ孔(10),(9)内にわたり挿通し
て叩き込むコツタ、(34)はベルト伝動機構(2
7),近接スイツチ(12)等のカバーである。(13) is an inverter with a fixed position stopping function for the spindle (5) mounted on the rear surface of the machine housing (1), and (32) is an operation box mounted on the front surface of the machine housing (1), on which a motor is mounted. A start button switch (14), a stop button switch (15), etc. of (3) are provided. Then, the stop button switch (15) was operated between the motor (3), the proximity switch (12), the inverter (13), the start button switch (14), the stop button switch (15) and the power supply (16). At this time, the main shaft (5) forms an electric circuit in which the cotter hole (9) is oriented in the front-rear direction and coincides with the cotter hole (10) of the quill (2) and stops. (33) is a knucker that is inserted through the quill (2) and the knuckle holes (10) and (9) of the main shaft (5) and hammered, and (34) is a belt transmission mechanism (2).
7), a cover of the proximity switch (12) and the like.
【0018】その作用を説明する。図1に示すように変
速歯車(31)の大径歯車(29)が受動筒(4)の小
径歯車(22)に噛合した状態において始動ボタンスイ
ツチ(14)を押せば、モータ(3)の原動軸(26)
が始動し、その原動軸(26)よりベルト伝動機構(2
7),入力軸(25),駆動歯車(28),大径歯車
(29),小径歯車(22)を経てドツグ(11)付き
受動筒(4)と主軸(5)は一体で高速回転する。The operation will be described. As shown in FIG. 1, when the large-diameter gear (29) of the speed change gear (31) meshes with the small-diameter gear (22) of the passive cylinder (4), the start button switch (14) is pushed to drive the motor (3). Driving shaft (26)
Starts, and the belt drive mechanism (2
7), the input shaft (25), the drive gear (28), the large diameter gear (29), and the small diameter gear (22), the passive cylinder (4) with the dog (11) and the main shaft (5) rotate together at high speed. .
【0019】従つて、その後、作動軸(20)を回転操
作し、そのピニオン(21)とクイル(2)のラツク
(18)の噛合によつてクイル(2)を下降させると、
該クイル(2)と一体でドリル(7)付き主軸(5)が
下降してそのドリル(7)により孔明け加工を行う。Accordingly, after that, when the operating shaft (20) is rotationally operated and the pinion (21) and the rack (18) of the quill (2) are engaged with each other, the quill (2) is lowered.
The spindle (5) with the drill (7) descends integrally with the quill (2), and the drill (7) is used for drilling.
【0020】一方、ドツグ(11)付き受動筒(4)の
回転に伴い、図7に示すようにドツグ(11)が近接ス
イツチ(12)部を通過する毎に近接スイツチ(12)
より1回の信号が出力される。On the other hand, with the rotation of the passive cylinder (4) with the dog (11), the proximity switch (12) is moved every time the dog (11) passes through the proximity switch (12) as shown in FIG.
The signal is output once.
【0021】ドリル(7)による加工が終了して停止ボ
タンスイツチ(15)を押せば、インバータ(13)の
変速機能によりモータ(3)に減速指令が出力されてモ
ーター(3)にブレーキが作用し、図7に示すようにモ
ータ(3)を急減速制御して急減速停止させる。そし
て、モータ(3)が一旦停止した後、今度は、モータ
(3)に決められた低速度の回転指令を出力してモータ
(3)を低速回転させる。When the stop button switch (15) is pressed after the machining by the drill (7) is finished, a deceleration command is output to the motor (3) by the shift function of the inverter (13) and the motor (3) is braked. Then, as shown in FIG. 7, the motor (3) is suddenly decelerated and suddenly decelerated to stop. Then, after the motor (3) is once stopped, this time a low-speed rotation command determined for the motor (3) is output to rotate the motor (3) at a low speed.
【0022】上記状態のときには、近接スイツチ(1
2)からの信号パルス幅も長くて信号を確実に読み取り
易くなつており、また、主軸(5)付き受動筒(4)の
回転の慣性も小さい。従つて、主軸(5)付き受動筒
(4)の低速回転域で近接スイツチ(12)のON−O
FFの信号を監視してそのONのパルス信号を入力した
瞬間、モータ(3)およびこれに伝動機構で連結した主
軸(5)付き受動筒(4)を停止させ、その主軸(5)
は常に一定位置、すなわち、該主軸(5)のコツタ孔
(9)が前後方向に向いてクイル(2)のコツタ孔(1
0)と合致した位置で停止する。In the above state, the proximity switch (1
The signal pulse width from 2) is also long so that the signal can be reliably read easily, and the inertia of the rotation of the passive cylinder (4) with the main shaft (5) is small. Therefore, the proximity switch (12) is turned ON-O in the low speed rotation range of the passive cylinder (4) with the main shaft (5).
At the moment when the FF signal is monitored and the ON pulse signal is input, the motor (3) and the passive cylinder (4) with a spindle (5) connected to it by a transmission mechanism are stopped, and the spindle (5) is stopped.
Is always at a fixed position, that is, the cotter hole (9) of the main shaft (5) is oriented in the front-rear direction and the cotter hole (1) of the quill (2) is
Stop at the position that matches 0).
【0023】そこで、図1に示すようにクイル(2)を
若干下降させ、図2に示すようにコツタ(33)をクイ
ル(2)と主軸(5)のコツタ孔(10),(9)内に
叩き込み、そのコツタ(33)によりドリル(7)をテ
ーパー挿着孔(8)内より押出して主軸(5)より取外
す。Therefore, as shown in FIG. 1, the quill (2) is slightly lowered, and as shown in FIG. 2, the copter (33) is inserted into the quill (2) and the spindle holes (10) and (9). Then, the drill (7) is pushed out from the inside of the tapered insertion hole (8) by the knuckle (33) and removed from the spindle (5).
【0024】変速歯車(31)を、図1に示す上方に位
置する状態から中間軸(24)に沿い下降させてその小
径歯車(30)を受動筒(4)の大径歯車(23)に噛
合させると、中間軸(24)より歯車(30),(2
3)を経てドツグ(11)付き受動筒(4)と主軸
(5)は一体で低速回転する。The speed change gear (31) is lowered from the upper position shown in FIG. 1 along the intermediate shaft (24) so that the small diameter gear (30) becomes the large diameter gear (23) of the passive cylinder (4). When meshed, the gears (30), (2
After 3), the passive cylinder (4) with the dog (11) and the main shaft (5) integrally rotate at a low speed.
【0025】なお、上記センサの近接スイツチ(12)
に代えて磁気センサを使用しても、上記と同様に作用す
る。The proximity switch (12) of the above sensor
Even if a magnetic sensor is used instead of the above, the same operation as described above is performed.
【0026】本考案は、卓上ボール盤、多軸ボール盤等
にも、上記と同様に施工することができる。The present invention can be applied to a tabletop drilling machine, a multi-axis drilling machine and the like in the same manner as described above.
【0027】[0027]
【考案の効果】本考案の直立ボール盤における主軸の定
位置停止装置は、下記のような利点がある。The fixed position stopping device for the spindle in the upright drilling machine of the present invention has the following advantages.
【0028】(1) 停止スイツチを操作して主軸を停
止するとき、主軸の回転数、工具の大小、長短等に関係
なく、常に主軸はそのコツタ孔が正確にクイルのコツタ
孔に合致して停止するから、主軸に取付けている工具を
交換する場合には、主軸の停止後、直ちにコツタをクイ
ルと主軸のコツタ孔内にわたつて叩き込み、そのコツタ
により工具を主軸のテーパー挿着孔内より押出して取外
すことができ、主軸の工具の交換を容易迅速になし手間
と時間を節減して作業上至便である。(1) When the stop switch is operated to stop the spindle, regardless of the number of rotations of the spindle, the size of the tool, the length of the tool, etc., the spindle always has its knuckle hole exactly aligned with the quill hole. Since the tool will stop, when replacing the tool attached to the spindle, immediately after stopping the spindle, tap the knuckle across the quill and the knuckle hole in the spindle and tap the tool from the taper insertion hole in the spindle. It can be pushed out and removed, and the tool of the spindle can be replaced easily and quickly, which saves labor and time and is convenient for work.
【0029】(2) 主軸を停止させるとき、インバー
タの変速機能によりモータの原動軸を急減速制御して一
旦急減速停止させた後、低速回転させ、その低速回転の
状態においてセンサからのパルス信号を入力して主軸付
き受動筒を停止させる。従つて、(2) When the main shaft is stopped, the drive shaft of the motor is suddenly decelerated by the speed change function of the inverter to suddenly decelerate and stop, and then the motor is rotated at a low speed. Enter to stop the passive cylinder with the spindle. Therefore,
【0030】(イ) 主軸の原動軸を決められた所要の
低速度で回転させ易い。(A) It is easy to rotate the driving shaft of the main shaft at a predetermined low speed.
【0031】(ロ) 主軸付き受動筒の停止直前にはセ
ンサからの信号パルス幅も長くて信号を確実に読み易く
なつており、また、主軸付き受動筒の回転の慣性も小さ
いから、主軸は常にそのコツタ孔が確実にクイルのコツ
タ孔と合致した一定位置で停止する。(B) Immediately before the stop of the passive cylinder with the main spindle, the signal pulse width from the sensor is long to make it easy to read the signal, and the inertia of the rotation of the passive cylinder with the main spindle is small. The cotter hole always stops at a fixed position that surely matches the quill's cotter hole.
【0032】(3) 工具を取付けた主軸と一体で回転
する受動筒にドツグを設け、そのドツグに対向して設け
たセンサにより関知してインバータにより主軸の定位置
停止制御を電気的に行うから、主軸の定位置停止を正確
になし得る。(3) Since the dog is provided on the passive cylinder that rotates integrally with the spindle on which the tool is attached, and the fixed position stop control of the spindle is electrically performed by the inverter detected by the sensor provided facing the dog. , It is possible to accurately stop the spindle at a fixed position.
【0033】(4) 主軸部にセンサを設けるのみで、
主軸の定位置停止を電気的に行うから、機械的の主軸定
位置停止機構が不要となり、構造が簡単で容易安価に製
作できる。(4) Only by providing a sensor on the main shaft,
Since the fixed-position stop of the spindle is performed electrically, a mechanical fixed-position stop mechanism of the spindle is unnecessary, and the structure is simple and easy to manufacture at low cost.
【0034】(5) 主軸に連結したモータを制御する
から、歯車の変速に関係なく、また、主軸を高速回転か
らでも直接急停止することができ、停止時間を短縮して
作業性が良い。(5) Since the motor connected to the main shaft is controlled, the main shaft can be directly and suddenly stopped regardless of gear shift, and the main shaft can be stopped rapidly, resulting in shortened stop time and good workability.
【0035】(6) 主軸の定位置停止を行うだけであ
るから、簡易形定位置制御回路でよく、電気回路が簡単
で、低価格で作製できる。(6) Since only the fixed position of the spindle is stopped, a simple fixed position control circuit is sufficient, the electric circuit is simple, and it can be manufactured at a low cost.
【0036】(7) 電気式制御であるから、外部から
の衝撃に対しても破損することなく、耐久性は大であ
る。(7) Since it is an electric control, it is not damaged by an external impact and has a high durability.
【図1】本考案の一実施例に係る直立ボール盤の上部の
縦断側面図である。FIG. 1 is a vertical sectional side view of an upper portion of an upright drilling machine according to an embodiment of the present invention.
【図2】同上要部の拡大側断面図で、中間部を切欠して
示す。FIG. 2 is an enlarged side cross-sectional view of a main part of the above, showing a middle part cut away.
【図3】同上平面図である。FIG. 3 is a plan view of the same.
【図4】その工具取付部の正断面図である。FIG. 4 is a front sectional view of the tool mounting portion.
【図5】その電気回路を示す説明平面図である。FIG. 5 is an explanatory plan view showing the electric circuit.
【図6】そのインバータ部の説明図である。FIG. 6 is an explanatory diagram of the inverter unit.
【図7】主軸の定位置停止の電気制御動作を示す図表で
ある。FIG. 7 is a table showing an electric control operation for stopping the spindle at a fixed position.
【図8】本考案の他の実施例に係る直立ボール盤の電気
回路を示す説明平面図である。FIG. 8 is an explanatory plan view showing an electric circuit of an upright drilling machine according to another embodiment of the present invention.
1 機筐 2 クイル 3 モータ 4 受動筒 5 主軸 6 スプライン軸 7 工具 8 テーパー挿着孔 9 コツタ孔 10 コツタ孔 11 ドツグ 12 センサ 13 インバータ 14 始動スイツチ 15 停止スイツチ 16 電源 17 支柱 18 ラツク 19 当て金 20 作動軸 21 ピニオン 22 小径歯車 23 大径歯車 24 中間軸 25 入力軸 26 原動軸 27 ベルト伝動機構 28 駆動歯車 29 大径歯車 30 小径歯車 31 変速歯車 32 操作箱 33 コツタ 34 カバー 1 machine casing 2 quill 3 motor 4 passive cylinder 5 main shaft 6 spline shaft 7 tool 8 taper insertion hole 9 kotatsu hole 10 kotatsu hole 11 dog 12 sensor 13 inverter 14 start switch 15 stop switch 16 power supply 17 support 18 rack 19 patch metal Working shaft 21 Pinion 22 Small diameter gear 23 Large diameter gear 24 Intermediate shaft 25 Input shaft 26 Driving shaft 27 Belt transmission mechanism 28 Drive gear 29 Large diameter gear 30 Small diameter gear 31 Speed change gear 32 Operation box 33 Kotatsu 34 Cover
Claims (1)
動軸のピニオンにラツクが噛合するクイルの前後壁の下
部には互いに対向する縦長コツタ孔を穿設して下端には
当て金を設け、上記クイルの上方において上記機筐の前
方上部には小径および大径の歯車を設けた受動筒を回転
自在に支持し、上記クイル内に挿通して回転自在に支持
した主軸の上方スプライン軸を上記受動筒内のスプライ
ン孔に摺動自在に係合し、その主軸の下部で上記クイル
の縦長コツタ孔と対向する位置には工具のテーパー挿着
孔の上端部に連通する縦長コツタ孔を穿設し、上記受動
筒にドツグを取付けると共に該ドツグに対向して上記機
筐に定位置を関知するセンサを接近配置し、上記機筐の
後部にモータを取付けて中間部に中間軸および入力軸を
回転自在に並架し、上記モータの原動軸と上記入力軸を
ベルト伝動機構により連結し、その入力軸に駆動歯車を
取付けて上記中間軸には上記入力軸の駆動歯車に噛合し
たまま交互に上記受動筒の小径および大径の歯車に係脱
する大径および小径の歯車を設けた変速歯車を摺動可能
に嵌合し、上記機筐には上記主軸の定位置停止機能付き
インバータ,上記モータの始動および停止スイツチ等を
設け、上記モータ,上記センサ,上記インバータ,上記
始動および停止スイツチと電源の間には、その始動スイ
ツチを操作すれば、モータの原動軸が始動し、停止スイ
ツチを操作すると、インバータの変速機能によりモータ
にブレーキが作用しモータの原動軸を急減速制御して一
旦急減速停止させた後、低速回転させ、その後、センサ
からの信号によりモータの原動軸を停止させる電気回路
を形成してなる直立ボール盤における主軸の定位置停止
装置。1. Vertically extending cotter holes are formed in the lower portions of front and rear walls of a quill in which a rack is engaged with a pinion of an operating shaft so as to be vertically movable in a lower portion of the front of a machine casing, and which are opposed to each other at a lower end thereof. Above the quill, above the quill, a passive cylinder provided with small and large diameter gears is rotatably supported in the upper front part of the machine casing, and above the main shaft rotatably supported by being inserted into the quill. The spline shaft is slidably engaged with the spline hole in the passive cylinder, and a vertical cotter communicating with the upper end of the taper insertion hole of the tool is located at a position below the main shaft of the spline shaft and facing the vertically long cotter hole of the quill. A hole is bored, a dog is attached to the passive cylinder, a sensor for detecting a fixed position is arranged close to the machine casing so as to face the dog, a motor is attached to the rear of the machine casing, and an intermediate shaft is attached to the middle portion. And the input shaft rotatably side by side, The driving shaft of the motor and the input shaft are connected by a belt transmission mechanism, a driving gear is attached to the input shaft, and the intermediate shaft is alternately engaged with the driving gear of the input shaft while alternately having a small diameter and a large diameter of the passive cylinder. Gears with large and small diameters for engaging and disengaging with large diameter gears are slidably fitted, and an inverter with a fixed position stop function for the main shaft, a start and stop switch for the motor, etc. Is provided between the motor, the sensor, the inverter, the start / stop switch and the power supply, if the start switch is operated, the driving shaft of the motor is started, and if the stop switch is operated, the speed change function of the inverter is changed. The brakes act on the motor to suddenly decelerate and control the motor drive shaft, then suddenly decelerate and stop, then rotate at a low speed, and then stop the motor drive shaft by the signal from the sensor. Fixed-position stop device of the main shaft in an upright drilling machine obtained by forming an electrical circuit for.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1992035609U JP2505854Y2 (en) | 1992-04-28 | 1992-04-28 | Fixed position stop device for spindle in upright ballboard |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1992035609U JP2505854Y2 (en) | 1992-04-28 | 1992-04-28 | Fixed position stop device for spindle in upright ballboard |
Publications (2)
Publication Number | Publication Date |
---|---|
JPH0621809U JPH0621809U (en) | 1994-03-22 |
JP2505854Y2 true JP2505854Y2 (en) | 1996-08-07 |
Family
ID=12446584
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP1992035609U Expired - Lifetime JP2505854Y2 (en) | 1992-04-28 | 1992-04-28 | Fixed position stop device for spindle in upright ballboard |
Country Status (1)
Country | Link |
---|---|
JP (1) | JP2505854Y2 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100609648B1 (en) | 2005-03-25 | 2006-08-08 | (주)대동석재공업 | A drill |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6330642A (en) * | 1986-07-23 | 1988-02-09 | Takao Iwasaki | Automatic continuously variable transmission |
-
1992
- 1992-04-28 JP JP1992035609U patent/JP2505854Y2/en not_active Expired - Lifetime
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100609648B1 (en) | 2005-03-25 | 2006-08-08 | (주)대동석재공업 | A drill |
Also Published As
Publication number | Publication date |
---|---|
JPH0621809U (en) | 1994-03-22 |
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