JPH01159104A - Vibration cutting tool - Google Patents
Vibration cutting toolInfo
- Publication number
- JPH01159104A JPH01159104A JP32222187A JP32222187A JPH01159104A JP H01159104 A JPH01159104 A JP H01159104A JP 32222187 A JP32222187 A JP 32222187A JP 32222187 A JP32222187 A JP 32222187A JP H01159104 A JPH01159104 A JP H01159104A
- Authority
- JP
- Japan
- Prior art keywords
- blade
- edge
- spring
- cutting
- vibrator
- 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
- 238000005520 cutting process Methods 0.000 title claims abstract description 79
- 238000001514 detection method Methods 0.000 claims description 9
- 230000008859 change Effects 0.000 claims description 4
- 230000004044 response Effects 0.000 claims description 4
- 229910000831 Steel Inorganic materials 0.000 description 5
- 239000010959 steel Substances 0.000 description 5
- 238000005553 drilling Methods 0.000 description 4
- 238000003801 milling Methods 0.000 description 4
- 230000005856 abnormality Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 238000013016 damping Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
Landscapes
- Turning (AREA)
- Cutting Tools, Boring Holders, And Turrets (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
この発明は切削加工中に生ずる刃物の自動振動を有効に
利用しながらワークを切削加工するようにした振動切削
装置に関するものである。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a vibration cutting device that cuts a workpiece while effectively utilizing the automatic vibration of a blade that occurs during cutting.
刃物を用いてワークを切削加工する工作機械として、旋
盤、ボール盤、中ぐり盤、フライス盤、平削り盤、形削
り盤などがある。Machine tools that use cutters to cut workpieces include lathes, drilling machines, boring machines, milling machines, planing machines, and shaping machines.
これらの工作機械において、刃物に適当な振動を与えつ
つ切削加工を行なうと切削速度、加工精度の向上、切削
刃物の耐久性の向上などの優れた効果が認められること
が知られている。In these machine tools, it is known that when cutting is performed while applying appropriate vibration to the cutting tool, excellent effects such as improvement in cutting speed, processing accuracy, and improvement in the durability of the cutting tool can be observed.
上記のように刃物を振動させるための起振装置としては
、発振機よりの周°波数で励振された電わい型や磁わい
型の振動子が多く用いられており、その他にも電磁振動
型、電気−油圧型、機械−泊圧型などが提案されている
。As mentioned above, electromagnetic type and magnetic type vibrators, which are excited by the frequency of an oscillator, are often used as vibration devices to vibrate cutlery, and electromagnetic vibrating type , electric-hydraulic type, mechanical-hydraulic type, etc. have been proposed.
上記のような従来の刃物の振動手段は複雑な電気回路が
必要なものや油圧シリンダなどの大型で複雑な電気回路
が必要なものや油圧シリンダなどの大型で複雑な機能の
高価な装置を必要とする点で問題がある。Conventional blade vibrating means as mentioned above require complex electric circuits, large and complicated electric circuits such as hydraulic cylinders, and large and expensive equipment with complex functions such as hydraulic cylinders. There is a problem in that.
上記の問題点を解決するために、この発明はホルダに対
して刃物を揺動し得るように取付け、ホルダに取付けた
バネと刃物の間に、刃物の刃先の微小振動を受けて振動
し、刃先に打撃力を逆伝達する振動子を設け、かつ、異
常時の圧力検知手段などを設けたものである。In order to solve the above problems, the present invention attaches a cutter to a holder so that it can swing, and vibrates between the spring attached to the holder and the cutter due to the minute vibrations of the cutting edge of the cutter. It is equipped with a vibrator that reversely transmits the impact force to the cutting edge, and is also equipped with means for detecting pressure in the event of an abnormality.
この発明は上記の構成であるから、ワークを回転させる
か、固定するか、あるいは直線的に移動させて、刃物の
刃先をワークの表面に切込むか、あるいは静止状態のワ
ークの表面に対して刃物の刃先を切込んで刃物を移動さ
せるか回転させるなどの手段でワークの切削を開始する
。Since the present invention has the above configuration, the cutting edge of the blade cuts into the surface of the workpiece by rotating, fixing, or moving the workpiece linearly, or cuts into the surface of the workpiece in a stationary state. Start cutting the workpiece by cutting with the cutting edge of the blade and moving or rotating the blade.
上記の切削作用において、刃物の刃先に微小振動が発生
ずるが、この微小振動が振動子を介して刃物に伝達され
る。In the above cutting action, minute vibrations are generated at the cutting edge of the cutter, and these minute vibrations are transmitted to the cutter via the vibrator.
このため、バネも微小振動して、振動子の振動を助長す
るので振動子の振幅が増大し、刃物の振動子接触面を打
撃するので、この打撃力が刃先に伝達され、切削性が向
上する。For this reason, the spring also vibrates minutely, promoting the vibration of the vibrator, increasing the amplitude of the vibrator, and striking the vibrator contact surface of the cutter, this striking force is transmitted to the cutting edge, improving cutting performance. do.
第１図ないし第３図に示す第１の実施例において、１は
図示省略しである旋盤の刃物台に固定したホルダで、そ
の前部上側には、前後方向の凹所２を前端から設けて、
この凹所２に刃物３を取付ける。In the first embodiment shown in FIGS. 1 to 3, 1 is a holder (not shown) fixed to the tool post of a lathe, and a recess 2 in the front and back direction is provided in the upper front part of the holder from the front end. hand,
A knife 3 is attached to this recess 2.
この刃物３のＬ血中間部に半円状の溝４を横方向に形成
し、この溝４にピン５を回動自在にはめるとともに、押
え金６の前部下面の半円状溝７に上記ピン５をはめ、押
え金６の後端をボルト８によりホルダ１に固定する。A semicircular groove 4 is formed laterally in the middle part of the blade 3, and a pin 5 is rotatably fitted into this groove 4, and a semicircular groove 7 on the lower front surface of the presser foot 6 is inserted into the groove 4. The pin 5 is fitted, and the rear end of the presser foot 6 is fixed to the holder 1 with the bolt 8.
また、上記刃物３の下面前半部とホルダ１の前端上面間
、同刃物３の上面後半部と押え金６の下面間には適当な
間隙ａ、ｂを設けて、刃物３がピン５を支点として上下
に揺動できるようにする。Appropriate gaps a and b are provided between the front half of the lower surface of the cutter 3 and the front end upper surface of the holder 1, and between the rear half of the upper surface of the cutter 3 and the lower surface of the presser foot 6, so that the cutter 3 uses the pin 5 as a fulcrum. to be able to swing up and down.
ただし、刃物３の左右および前後方向にはピン５と溝４
．７の係合および刃物３の側面と凹所２の両側面との接
触によりガタのないようにする。However, pins 5 and grooves 4 are provided in the left and right and front and rear directions of the blade 3.
．． 7 and contact between the sides of the cutter 3 and both sides of the recess 2 to prevent looseness.
上記ホルダ１には前後に貫通する孔１１を設け、この孔
１１内には前後に摺動する進退部材１２を装着する。こ
の部材１２の前部には前端から所要の深さに達する割溝
１３を設けてその上部の片をバネ１４とし、部材１２の
後部上側にはランクギヤ１５を設ける。The holder 1 is provided with a hole 11 penetrating back and forth, and a reciprocating member 12 that slides back and forth is mounted in the hole 11. A split groove 13 reaching a required depth from the front end is provided in the front part of this member 12, the upper piece thereof is used as a spring 14, and a rank gear 15 is provided on the upper rear side of the member 12.
ホルダ１の前端近くに孔１１に達する縦孔１８を設け、
この縦孔１８に、鋼球などからなる振動子１９を上下動
自在に遊嵌し、その上下端を刃物３とバネ１４に接触さ
せて、バネ１４の反発力により振動子１９を介し、刃物
３の前部を上方に押して刃物３にピン５を支点とする回
転力、すなわち、刃物３の刃先２０が第１図矢印方向に
回転するワーク２１に切込む力を与えるようにする。A vertical hole 18 reaching the hole 11 is provided near the front end of the holder 1,
A vibrator 19 made of a steel ball or the like is loosely fitted into the vertical hole 18 so as to be movable up and down, and its upper and lower ends are brought into contact with the cutter 3 and the spring 14. The front part of the blade 3 is pushed upward to apply a rotational force to the blade 3 about the pin 5, that is, a force that causes the cutting edge 20 of the blade 3 to cut into the workpiece 21 rotating in the direction of the arrow in FIG.
また、ホルダ１の一部には孔１１の上部と交叉連結する
横孔２２を設け、この横孔２２に装着したピニオンギヤ
２３を前記ラックギヤ１５に噛合させ、ピニオンギヤ２
３の軸の一端にツマミ２４を設け、前記バネ１４を面下
りに傾斜させてツマミ２４によるピニオンギヤ２３の回
転で進退部材１２を進退させてバネ１４の弾発力を変更
できるようにする。Further, a horizontal hole 22 is provided in a part of the holder 1 and cross-connected to the upper part of the hole 11, and a pinion gear 23 mounted in this horizontal hole 22 is meshed with the rack gear 15, and the pinion gear 2
A knob 24 is provided at one end of the shaft of the spring 14, and the spring 14 is tilted downward so that the rotation of the pinion gear 23 by the knob 24 moves the advancing/retracting member 12 forward and backward, thereby changing the elastic force of the spring 14.
２８は前記押え金６の中間部のねし孔にねじ込んだエア
ノズルで２９は同ロックナツトである。28 is an air nozzle screwed into a threaded hole in the middle of the presser foot 6, and 29 is a lock nut.
つぎに上記実施例の作用を説明すれば、ワーク２１を第
１図の矢印方向に回転させ、刃物３の刃先２０をワーク
２１に切込むと、刃先は切削抵抗によりピン５を支点と
して下方向に回される。しかし、バネ４の反発力が振動
子１９を介して刃物３の前部下面に加わるので刃先２０
は上方に押し戻される。Next, to explain the operation of the above embodiment, when the workpiece 21 is rotated in the direction of the arrow in FIG. will be passed on to However, since the repulsive force of the spring 4 is applied to the lower front surface of the blade 3 via the vibrator 19, the blade edge 20
is pushed back upwards.
また、切削時において、刃先２０は微小振動しているか
ら、この微小振動が振動子１９に伝達され、この振動子
１９の振動がバネ１４の反発力で補振され、この振動子
１９の衝撃力が刃先２０に逆伝達される。In addition, since the cutting edge 20 vibrates minutely during cutting, this minute vibration is transmitted to the vibrator 19, and the vibration of this vibrator 19 is compensated by the repulsive force of the spring 14, and the impact of this vibrator 19 is Force is transmitted back to the cutting edge 20.
また、実施例の場合、エアノズル２８を圧縮空気源に連
通ずる送気路に連通させ、この送気路に空気圧の変化を
検知する圧力スイッチなどの圧力検知手段を設け、切削
加工中に一定圧力の圧縮空気をノズル２８から間隙すに
噴出させてお（。In addition, in the case of the embodiment, the air nozzle 28 is connected to an air supply path that communicates with a compressed air source, and a pressure detection means such as a pressure switch that detects changes in air pressure is provided in this air supply path, so that a constant pressure is maintained during cutting. Compressed air is ejected from the nozzle 28 into the gap (.
この場合、正常な切削が行なわれている間は、間隙すは
正常値で圧縮空気は間隙すの両側から外部へ放出されて
いるので、送気路中の空気圧も正常値であるが、切削中
に、刃先２０の摩耗などの原因による過負荷が発生する
と刃物３はバネ１４の反発力に抗して大きく揺れるから
、間隙すが小さくなり、送気路内の空気圧が上昇して圧
力検知手段が作用し、その信号により工作機械を停止さ
せるか、あるいは警報を発する。In this case, while normal cutting is being performed, the gap is at a normal value and compressed air is released from both sides of the gap, so the air pressure in the air passage is also at a normal value. When an overload occurs due to wear of the cutting edge 20 or other causes, the cutting tool 3 swings greatly against the repulsive force of the spring 14, which reduces the gap and increases the air pressure in the air supply path, allowing pressure to be detected. Means is activated and the signal causes the machine tool to stop or to issue an alarm.
第４図ないし第６図は第２の実施例で、ホルダ３１の前
端面には支持部３２を一体に設け、この支持部３２に横
孔３３を設け、この横孔３３に挿入したピン３４により
刃物３５を揺動自在に取付ける。4 to 6 show a second embodiment, in which a support part 32 is integrally provided on the front end surface of a holder 31, a horizontal hole 33 is provided in this support part 32, and a pin 34 inserted into this horizontal hole 33 is provided. The cutter 35 is swingably mounted.
上記ピン３４にはカラー３６、ワッシャ３７を装着し、
ナツト３８でピン３４を固定して刃物３５の前後左右方
向のガタを防止している。A collar 36 and a washer 37 are attached to the pin 34,
The pin 34 is fixed with a nut 38 to prevent the blade 35 from rattling in the longitudinal and lateral directions.
ホルダ３１の前端近（において、刃物３５の後方に近い
部分に縦孔４０を設け、この縦孔４０にバネ部材４１を
上下位置調節自在に挿入してその上端をセントビス４２
により任意の位置に固定する。A vertical hole 40 is provided near the front end of the holder 31 (in a portion near the rear of the cutter 35), and a spring member 41 is inserted into the vertical hole 40 so as to be vertically adjustable, and the upper end is secured to the center screw 42.
to fix it in any position.
上記、バネ部材４１にはその下端から割溝４３を設けて
その前部をバネ４５とし、ホルダ３１の前端と縦孔４０
を連通させる前後方向の孔４６には鋼球などからなる振
動子４７を遊嵌せしめてその前後を刃物３５の後面下端
とバネ４５に接触させる。As mentioned above, the spring member 41 is provided with a split groove 43 from its lower end, and its front part serves as a spring 45, and the front end of the holder 31 and the vertical hole 40
A vibrator 47 made of a steel ball or the like is loosely fitted into the hole 46 in the front-rear direction that communicates with the blade 35 , and its front and rear portions are brought into contact with the lower end of the rear surface of the cutter 35 and the spring 45 .
上記バネ４５は第４図のように後方に傾斜させてセント
ビス４２を弛めてバネ部材４１を上下させることにより
バネ４５の弾発力を変更できるようにする。The spring 45 is tilted rearward as shown in FIG. 4, and by loosening the center screw 42 and moving the spring member 41 up and down, the elastic force of the spring 45 can be changed.
第４図の５０はホルダ３１の後端から縦孔４ｏ内に連通
ずる送気路で、バネ部材４１の後部片下部のノズル５１
により割溝４３に通じている。Reference numeral 50 in FIG. 4 denotes an air supply path communicating from the rear end of the holder 31 into the vertical hole 4o, and a nozzle 51 at the lower part of the rear part of the spring member 41.
This communicates with the split groove 43.
上記第２の実施例の場合も第４図矢印方向に回転するワ
ーク５２に刃物３５の刃先５３を切込むと、刃先５３は
切削抵抗によりピン３４を支点として下方向に回される
。しかし、バネ４５の反発力が振動子４７を介して刃物
３５の後面下部に加わるので刃先５３は上方に押し戻さ
れる。In the case of the second embodiment as well, when the cutting edge 53 of the cutting tool 35 cuts into the workpiece 52 rotating in the direction of the arrow in FIG. 4, the cutting resistance causes the cutting edge 53 to rotate downward about the pin 34 as a fulcrum. However, since the repulsive force of the spring 45 is applied to the lower rear surface of the blade 35 via the vibrator 47, the blade edge 53 is pushed back upward.
また、切削時において、刃先５３は微小振動しているか
らこの微小振動が振動子４７に伝達され、この振動子４
７の振動がバネ４５の反発力で補振され、この振動子４
７の衝撃力が刃先５３に逆伝達される。Further, during cutting, the cutting edge 53 vibrates minutely, so this minute vibration is transmitted to the vibrator 47.
7 is compensated by the repulsive force of the spring 45, and this vibrator 4
The impact force of 7 is reversely transmitted to the cutting edge 53.
また、実施例の場合、送気路５０を圧縮空気源に通じる
回路の途中に圧力検知手段を設け、切削加工中に一定圧
力の圧縮空気をノズル５１から割溝４３に噴出させてお
く。Further, in the case of the embodiment, a pressure detection means is provided in the middle of the circuit connecting the air supply path 50 to the compressed air source, and compressed air at a constant pressure is ejected from the nozzle 51 into the groove 43 during cutting.
この場合、正常な切削が行なわれている間は、割溝４３
は正常値で圧縮空気は割溝４３の下端から外部へ放出さ
せているので送気路中の空気圧も正常値であるが、切削
中に、刀先５３の摩耗などの原因による過負荷が発生す
ると刃物３５はバネ４５の反発力に抗して大きく揺れる
から、割溝４３が小さくなり、送気路５０内の空気圧が
上昇して圧力検知手段が作用し、その信号により工作機
械を停止させるか、あるいは警報を発する。In this case, while normal cutting is being performed, the dividing groove 43
is a normal value and compressed air is released from the lower end of the groove 43 to the outside, so the air pressure in the air supply path is also a normal value, but during cutting, an overload occurs due to factors such as wear of the blade tip 53. Then, the cutter 35 swings greatly against the repulsive force of the spring 45, so the split groove 43 becomes smaller, the air pressure in the air passage 50 rises, the pressure detection means is activated, and the signal is used to stop the machine tool. or raise an alarm.
第７図ないし第９図は第３の実施例で、刃物ホルダ６１
の前端部の上側に前後方向の凹所６２を設け、この凹所
６２に刃ＩＦ１６３を堰付ける。7 to 9 show a third embodiment of the blade holder 61.
A recess 62 in the front-rear direction is provided above the front end of the blade IF 163, and the blade IF 163 is installed in the recess 62.
凹所６２の中間部に設けた半円状の溝６４にピン６５を
はめてその外周上部を刃物６３の下面に接触させる。ま
た、凹所６２の底面後部６６を一段高くして刃物６３の
後端面を後部６６上に接触させる。A pin 65 is fitted into a semicircular groove 64 provided in the middle of the recess 62, and the upper portion of the outer circumference thereof is brought into contact with the lower surface of the cutter 63. Further, the bottom rear portion 66 of the recess 62 is raised one step higher so that the rear end surface of the cutter 63 is brought into contact with the rear portion 66.
６８はバネで、その後部の取付孔６９に挿入した固定用
ボルト７０をホルダ６１の上面に前後に並べて設けた複
数のネジ孔７１の何れかにねじ込んで固定する。Reference numeral 68 denotes a spring, and a fixing bolt 70 inserted into a mounting hole 69 at the rear thereof is screwed into one of a plurality of screw holes 71 arranged in front and back on the upper surface of the holder 61 to fix the spring.
また、上記バネ６８の前部下面には左右に並ぶ一対の半
球状凹所７２の複数組を前記ネジ孔７１と同ピツチで配
列し、前記刃物６３の後部上面には上記凹所７２に対向
する左右一対の半球状凹所７３を設け、この相対向する
凹所７２．７３に鋼球などからなる振動子７４を遊嵌し
て刃物６３の後部上面とバネ６８の前部下面間に若干の
間隙ができるようにする。Further, on the front lower surface of the spring 68, a plurality of pairs of hemispherical recesses 72 arranged side by side are arranged at the same pitch as the screw holes 71, and on the rear upper surface of the blade 63, opposite to the recesses 72 are arranged. A pair of left and right hemispherical recesses 73 are provided, and a vibrator 74 made of a steel ball or the like is loosely fitted into the opposing recesses 72 and 73 to create a slight gap between the upper rear surface of the blade 63 and the lower front surface of the spring 68. Make sure there is a gap.
また、ボルト７０を他のネジ孔７１にねじ込んで、バネ
６８の取付位置を変更し、これに応じて振動子７４がは
まる凹所７２を変更することによりバネ６８の弾発力を
調節できる。In addition, the resilient force of the spring 68 can be adjusted by screwing the bolt 70 into another screw hole 71 to change the mounting position of the spring 68, and accordingly change the recess 72 into which the vibrator 74 is fitted.
７５は第９図に示すような倒立り形の検知部材で、その
縦同部をホルダ６１の前寄り側面の溝にはめてセットボ
ルト７６により固定し、同部材７５のノズル形成部には
下向きのノズル７７を設け、このノズル７７には他の実
施例と同様空気圧検知手段を有する送気路を連通させ、
部材７５の下面とバネ６８の上面間の間隙の変化を検知
するように構成する。Reference numeral 75 denotes an inverted detection member as shown in FIG. A nozzle 77 is provided, and this nozzle 77 is communicated with an air supply path having an air pressure detection means as in the other embodiments.
It is configured to detect a change in the gap between the lower surface of the member 75 and the upper surface of the spring 68.
つぎに上記第３の実施例の作用を説明すれば、ワーク７
８を第７図の矢印方向に回転させ、刃物６３の刃先７９
をワーク７８に切込むと、刃先７９は切削抵抗によりピ
ン６５を支点として下方向に回される。しかし、バネ６
８の反発力が振動子７４を介して刃物６３の後部上面に
加わるので、刃先７９は上方に押し戻される。Next, to explain the operation of the third embodiment, the workpiece 7
8 in the direction of the arrow in FIG.
When the cutting edge 79 is cut into the workpiece 78, the cutting resistance causes the cutting edge 79 to rotate downward about the pin 65 as a fulcrum. However, spring 6
Since the repulsive force of 8 is applied to the rear upper surface of the blade 63 via the vibrator 74, the blade edge 79 is pushed back upward.
また、切削時において、刃先７９は微小振動しているか
ら、この微小振動が振動子７４に伝達され、この振動子
７４の振動がバネ８６の反発力で補振されこの振動子７
４の衝撃力が刃先７９に逆伝達される。In addition, since the cutting edge 79 vibrates minutely during cutting, this minute vibration is transmitted to the vibrator 74, and the vibration of this vibrator 74 is compensated by the repulsive force of the spring 86.
The impact force of 4 is reversely transmitted to the cutting edge 79.
また、正常切削中はノズル７７に１ｉｉｅる送気路中の
空気圧も正常値であるが、切削中に、刃先７９の摩耗な
どの原因による過負荷が発生すると刃物６３はバネ６８
の反発力に抗して大きく揺れるから、ノズル７７が対向
している間隙が小さくなり、送気路内の空気圧が上昇し
、圧力検知手段が働いて、その信号により工作機械を停
止させるか、あるいは警報を発する。Also, during normal cutting, the air pressure in the air passage to the nozzle 77 is at a normal value, but if an overload occurs due to wear of the cutting edge 79 or the like during cutting, the blade 63
As the nozzle 77 swings greatly against the repulsive force of Or raise an alarm.
第１０図ないし第１４図に示す第４の実施例はボール盤
などに用いるドリル形式のものである。The fourth embodiment shown in FIGS. 10 to 14 is of a drill type used in a drilling machine or the like.
この場合、ホルダ８１ばボール盤の回転主軸に固定する
もので、その先端にチップ状の刃物８２．８３を取付け
る。In this case, the holder 81 is fixed to the rotating main shaft of the drilling machine, and tip-shaped cutters 82 and 83 are attached to the tip of the holder 81.
すなわち、丸棒状のホルダ８１の両側に第１２図に示す
ような形状の溝８６．８７を先端部から形成し、これら
善導８６．８７の一側面の先端部には刃物の形状に適合
する凹所８８．８９を設け、この各凹所にそれぞれ前記
刃物８２．８３を可動的に取付ける。That is, grooves 86 and 87 shaped as shown in FIG. 12 are formed on both sides of the round rod-shaped holder 81 from the tip, and a recess that fits the shape of the cutter is formed at the tip of one side of these guides 86 and 87. Recesses 88, 89 are provided, and the blades 82, 83 are movably mounted in each recess.
上記各刃物８２．８３の側面中央には半球状凹所９Ｌ
９２を設け、善導８６．８７の前部に後端を固定したバ
ネ９３．９４の先端には上記各凹所９Ｌ ９２に対向す
る半球状凹所９５．９６を設けて相対向する凹所９Ｌ
９５問および凹所９２．９６間に鋼球などからなる振動
子９７．９８をはめて、各刃物８２．８３がバネ９３．
９４により凹所８８．８９の底面に密着し、かつ同各凹
所の端部を支点１０１．１０２としてバネ９３．９４の
弾力に抗して揺動し得るようにする。There is a hemispherical recess 9L in the center of the side surface of each of the blades 82 and 83 above.
92, and the rear end of the spring 93.94 is fixed to the front part of the guide 86.87. At the tip of the spring 93.94, a hemispherical recess 95.96 facing each of the above-mentioned recesses 9L and 92 is provided.
A vibrator 97.98 made of a steel ball or the like is fitted between the 95 questions and the recess 92.96, and each blade 82.83 is attached to a spring 93.
94, so as to be in close contact with the bottom surfaces of the recesses 88, 89, and to be able to swing against the elasticity of springs 93, 94 using the ends of the recesses as fulcrums 101, 102.
また、ホルダ８１には２本の送気路１０３．１０４を設
け、この各送気路を、前記各凹所８８．８９に設けたノ
ズル１０５．１０６に連通させて平常時は各ノズル１０
５．１０６が刃物８２．８３で閉じられているようにす
る。Further, the holder 81 is provided with two air supply passages 103 and 104, and these air passages are communicated with the nozzles 105 and 106 provided in each of the recesses 88 and 89.
5.106 is closed with cutter 82.83.
上記第４の実施例ではワークをボール盤のテーブル上に
固定し、ホルダ８１を回転させながら刃物８２．８３を
ワークに切込む。In the fourth embodiment, the workpiece is fixed on the table of a drilling machine, and the cutters 82 and 83 cut into the workpiece while rotating the holder 81.
刃物８２はワークの表面から切込んで切削する孔の内側
すなわち、底部を切削し、刃物８３は孔の内周を切削し
ていく。The cutter 82 cuts the inside of the hole to be cut, that is, the bottom, from the surface of the workpiece, and the cutter 83 cuts the inner periphery of the hole.
また、上記の切削作業において、各刃先１０８．１０９
は微小振動しているからこの微小振動が各振動子９７．
９８に伝達され、この各振動子９７．９８の振動がバネ
９３．９４の反発力で補振され、この振動子９３．９４
の衝撃力が刃先１０８．１０９に逆伝達される。In addition, in the above cutting work, each cutting edge 108.109
is vibrating minutely, so this minute vibration causes each vibrator 97.
The vibration of each vibrator 97.98 is compensated by the repulsive force of the spring 93.94, and the vibration of each vibrator 93.98 is transmitted to the vibrator 98.
The impact force is transmitted back to the cutting edge 108, 109.
また、この実施例の場合、各送気路１０３．１０４を圧
縮空気源に通じる回路の途中に圧力検知手段を設け、切
削加工中に一定圧力の圧縮空気圧をノズル１０５．１０
６に加えておく。In the case of this embodiment, a pressure detection means is provided in the middle of the circuit connecting each air supply path 103, 104 to the compressed air source, and a constant compressed air pressure is applied to the nozzle 105, 10 during cutting.
Add it to 6.
この場合、正常な切削が行なわれている間は、各ノズル
１０５．１０６は刃物８２．８３で微小開閉動作を繰返
しているので送気路中の空気圧は正常値であるが、切削
中に、各刃先１０８．１０日の摩耗などの原因による過
負荷が発生すると、各刃物８２．８３はバネ９３．９４
の反発力に抗して大きく揺れるから刃物８２．８３と凹
所８８．８９の底面間の隙間が大きくなって排気され送
気路１０３．１０４内の空気圧が急激に下降して圧力検
知手段が作用し、その実施例により工作機械を停止させ
るか、あるいは警報を発する。In this case, while normal cutting is being performed, each nozzle 105, 106 repeats minute opening and closing operations with the blades 82, 83, so the air pressure in the air passage is at a normal value, but during cutting, When overload occurs due to causes such as wear on each cutting edge 108.10, each cutting edge 82.83 will spring 93.94
As the blade 82.83 and the bottom of the recess 88.89 sway greatly against the repulsive force, the gap between the cutter 82.83 and the bottom of the recess 88.89 becomes larger and the air is exhausted, causing the air pressure in the air supply path 103.104 to drop rapidly, causing the pressure detection means to Depending on the embodiment, either the machine tool is stopped or an alarm is issued.
第１５図、第１６図に示す第５の実施例はフライス盤に
用いるエンドミル形式のものである。The fifth embodiment shown in FIGS. 15 and 16 is of an end mill type used in a milling machine.
この場合、ホルダ１１１はフライス盤の回転主軸などに
固定するもので、その側部に複数のチップ状の刃物１１
２を取付ける。In this case, the holder 111 is fixed to the rotating main shaft of a milling machine, etc., and a plurality of chip-shaped blades 11 are attached to the side of the holder 111.
Install 2.
すなわち、丸棒状のホルダ１１１の周囲に第１６図のよ
うに複数の溝１１３を先端部から形成し、これらの善導
１１３の一側に設けた複数の凹所１１４に刃物１１２を
可動的に取付ける。That is, as shown in FIG. 16, a plurality of grooves 113 are formed around the round bar-shaped holder 111 from the tip, and the cutter 112 is movably attached to a plurality of recesses 114 provided on one side of these guides 113. .
上記各刃物１１２の側面中央に半球状凹所１１６を設け
、各凹所１１６の後部に位置する溝１１３の底面上にバ
ネ１１８の後端を固定ボルト１１９により固定し、この
各バネ１１８の先端には上記各凹所１１６に対向する半
球状凹所１１７を設け、この相対向する凹所１１６．１
１７間に鋼球などの振動子１２１をはめて、各刃物１１
２がバネ１１８により凹所１１４の底面に密着し、各凹
所１１４の端部を支点１２２としてバネ１１８の弾力に
抗して揺動し得るようにする。A hemispherical recess 116 is provided in the center of the side surface of each cutter 112, and the rear end of the spring 118 is fixed to the bottom surface of the groove 113 located at the rear of each recess 116 with a fixing bolt 119. is provided with a hemispherical recess 117 opposite each of the recesses 116, and the opposite recesses 116.1
A vibrator 121 such as a steel ball is inserted between the blades 11 and 17.
2 is brought into close contact with the bottom surface of the recess 114 by a spring 118, and can swing against the elasticity of the spring 118 using the end of each recess 114 as a fulcrum 122.
上記実施例の場合はワークをフライス盤のテーブル上な
どに固定し、ホルダ１１１を回転させながら刃物１１２
をワークの内側などに切り込んでワークを水平移動させ
るなどの方法で切削加工を行う。・
上記の切削作業において、各刃物１１２の刃先１２３は
微小振動しているからこのｊ１＼振動が振動子１２１に
伝達され、この振動子１２１の振動がバネ１１８の反発
力で補振され、この振動子１２１の衝撃力が刃先１２３
に逆伝達される。In the case of the above embodiment, the workpiece is fixed on the table of a milling machine, etc., and the cutter 112 is rotated while the holder 111 is rotated.
Cutting is performed by cutting into the inside of the workpiece and moving the workpiece horizontally. - In the above cutting operation, the cutting edge 123 of each cutter 112 is slightly vibrating, so this j1\ vibration is transmitted to the vibrator 121, and the vibration of this vibrator 121 is compensated by the repulsive force of the spring 118, and this The impact force of the vibrator 121 is applied to the cutting edge 123
is transmitted back to.
また、図示はしていないが、この第５の実施例の場合も
他の実施例と同様に圧縮空気の圧力変化を利用する刃物
の異常検知装置を設けることができる。Further, although not shown in the drawings, the fifth embodiment may also be provided with an abnormality detection device for cutlery that utilizes changes in the pressure of compressed air, as in the other embodiments.
この発明は上記のようにホルダに対して刃物を揺動し得
るように取付け、ホルダに取付けたバネと、刃物の間に
、刃物の刃先の微小振動を受けて振動し、刃先に打撃力
を逆伝達する振動子を設けたものであるから、刃物の刃
先をワークに切り込んで、切削加工を行なっている状態
で刃物の刃先に微小振動が発生する。この微小振動がバ
ネに伝達され、このバネによる補振作用で振動子の微小
振動の振巾が増大し、刃物を打撃するので、この打撃力
が逆に刃物の刃先に伝達されるものであるから、刃物の
刃先の振動が有効に利用されて切削速度を早くできる。In this invention, as described above, a cutter is attached to a holder so as to be able to swing, and a spring attached to the holder and the cutter vibrate in response to minute vibrations of the cutting edge of the cutter, and apply impact force to the cutting edge. Since it is equipped with a vibrator that transmits reverse transmission, minute vibrations are generated at the cutting edge of the cutting tool when it cuts into a workpiece and performs cutting. This micro-vibration is transmitted to the spring, and due to the damping action of this spring, the amplitude of the micro-vibration of the vibrator increases and strikes the cutter, so that this striking force is transmitted to the cutting edge of the cutler. Therefore, the vibration of the cutting edge of the cutting tool is effectively used to increase the cutting speed.
また、仕上げ面の粗度が小さくなり、寸法精度が向上す
る。Furthermore, the roughness of the finished surface is reduced, and dimensional accuracy is improved.
また、実施例に示すように、刃物の揺動を利用して空気
圧を変化させることにより、刃先の摩耗などの異常を検
出する機能を与えることもできるなどの効果がある。Further, as shown in the embodiment, by changing the air pressure using the swinging motion of the blade, it is possible to provide a function to detect abnormalities such as wear of the blade edge.
第１図はこの発明の第１の実施例の縦側面図、第２図は
同上の一部横断平面図、第３図は同じく縦断正面図、第
４図は第２の実施例の要部縦断側面図、第５図は同上の
平面図、第６図は同じ（−部縦断正面図、第７図は第３
の実施例の要部縦断側面図、第８図は同上の平面図、第
９図は同じく縦断正面図、第１０図は第４の実施例の側
面図、第１１図は同上の正面図、第１２図は第１０図Ａ
−Ａ線の断面図、第１３図は第１１図の矢印Ｐ方向の側
面図、第１４図は第１１図の矢印Ｇ方向の側面図、第１
５図は第５の実施例を示す側面図、第１６図は同上の縦
断正面図である。
Ｌ ３Ｌ ６Ｌ ８１．１１１・・・・・・ホルダ、３
．３５．６３．８２．８３．１１２・γ・・・刃物、５
．３４．６５・・・・・・ピン、
１４．４５．６８．９３、Ｓ４．１１８・・・・・・バ
ネ、１９．４７．７４．９８．９７．１２１・・・・・
・振動子。FIG. 1 is a longitudinal side view of a first embodiment of the present invention, FIG. 2 is a partially cross-sectional plan view of the same as above, FIG. 3 is a longitudinal sectional front view of the same, and FIG. 4 is a main part of the second embodiment. Vertical side view, Figure 5 is the same plan view as above, Figure 6 is the same (- section vertical front view, Figure 7 is the same as above).
FIG. 8 is a plan view of the same as above, FIG. 9 is a longitudinal front view of the same, FIG. 10 is a side view of the fourth embodiment, FIG. 11 is a front view of the same as above, Figure 12 is Figure 10A
13 is a side view in the direction of arrow P in FIG. 11, FIG. 14 is a side view in the direction of arrow G in FIG.
FIG. 5 is a side view showing the fifth embodiment, and FIG. 16 is a longitudinal sectional front view of the same. L 3L 6L 81.111...Holder, 3
．． 35.63.82.83.112・γ・・・Knife, 5
．． 34.65...Pin, 14.45.68.93, S4.118...Spring, 19.47.74.98.97.121...
- Vibrator.
Claims (3)
刃物ホルダに取付けたバネと刃物の間に、刃物の刃先の
微小振動を受けて振動し、刃先に打撃力を逆伝達する振
動子を設けたことを特徴とする振動切削装置。(1) Attach the cutter so that it can swing relative to the holder,
A vibration cutting device characterized in that a vibrator is provided between a spring attached to a blade holder and the blade, and vibrates in response to minute vibrations of the blade edge of the blade, and reversely transmits impact force to the blade edge.
刃物ホルダに取付けたバネと刃物の間に、刃物の刃先の
微小振動を受けて振動し、刃先に打撃力を逆伝達する振
動子を設け、刃物の振幅が設定値を越えたことを空気圧
の変化として検知するようにした検知手段を備えたこと
を特徴とする振動切削装置。(2) Attach the cutter so that it can swing relative to the holder,
A vibrator is installed between the spring attached to the blade holder and the blade, which vibrates in response to minute vibrations of the blade edge and transmits the impact force back to the blade edge. A vibration cutting device characterized by comprising a detection means configured to detect a change.
刃物ホルダに取付けたバネと刃物の間に、刃物の刃先の
微小振動を受けて振動し、刃先に打撃力を逆伝達する振
動子を設けた振動切削装置において、上記刃物に支点を
設けてこの支点を中心に刃物を回転振動させるようにし
たことを特徴とする振動切削装置。(3) Attach the cutter so that it can swing relative to the holder,
In a vibration cutting device, a vibrator is installed between a spring attached to a blade holder and a blade, and vibrates in response to minute vibrations of the blade edge of the blade, and reversely transmits impact force to the blade edge. A vibration cutting device characterized by rotating and vibrating a blade around a fulcrum.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP32222187A JPH01159104A (en) | 1987-12-16 | 1987-12-16 | Vibration cutting tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP32222187A JPH01159104A (en) | 1987-12-16 | 1987-12-16 | Vibration cutting tool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH01159104A true JPH01159104A (en) | 1989-06-22 |
Family
ID=18141296
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP32222187A Pending JPH01159104A (en) | 1987-12-16 | 1987-12-16 | Vibration cutting tool |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01159104A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2007114034A1 (en) * | 2006-03-30 | 2007-10-11 | Konica Minolta Opto, Inc. | Cutting device, processing device, forming die, optical element, and cutting method |
-
1987
- 1987-12-16 JP JP32222187A patent/JPH01159104A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2007114034A1 (en) * | 2006-03-30 | 2007-10-11 | Konica Minolta Opto, Inc. | Cutting device, processing device, forming die, optical element, and cutting method |
| JP5003487B2 (en) * | 2006-03-30 | 2012-08-15 | コニカミノルタアドバンストレイヤー株式会社 | Cutting apparatus, processing apparatus, and cutting method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| KR101209826B1 (en) | Milling machine jig for precision parts | |
| EP0292651B1 (en) | Vibrating cutting tool | |
| US3744353A (en) | Method and means for preventing regenerative chatter in a machine tool, particularly in a lathe | |
| HU209644B (en) | Apparatus for making holes having back-cut | |
| US5176477A (en) | Drill tool | |
| JPH01159104A (en) | Vibration cutting tool | |
| US5271301A (en) | Vibrating cutting tool | |
| WO2006078189A1 (en) | Vibration cutting method and a vibration cutter | |
| RU2281187C1 (en) | Vibration cutting method and cutter | |
| CN102581628B (en) | Self-locking hydraulic sliding platform | |
| JPH02198705A (en) | Vibration cutting device | |
| CN219747184U (en) | Mechanical transmission mechanism of numerical control machine tool | |
| CN104289915B (en) | Ultrasonic die drilling and milling line for line passing hole of injection molding part | |
| CN219357992U (en) | Drilling machine for aluminum profile | |
| CN212945465U (en) | Numerical control cutter with telescopic protective sleeve | |
| CN215880709U (en) | Drilling and tapping assembly and drilling and tapping center | |
| CN219254743U (en) | Multifunctional numerical control machine tool | |
| CN217859939U (en) | Adjustable high-precision machining lathe | |
| CN221158683U (en) | Stainless steel plate positioning drilling device | |
| CN104801740A (en) | Drilling machine comprising pivotal workbenches | |
| KR100544370B1 (en) | Personal Computer based Numerical Control | |
| US2202287A (en) | Relieving attachment for lathes | |
| CN216462972U (en) | Ultrahigh-hardness material inner hole machining jig | |
| CN211993613U (en) | Vertical automatic perforating machine for glass | |
| CN213080181U (en) | Upright drill convenient to adjust |