JPH07100741A - Method for grinding cutting edge by long cutting tool grinder - Google Patents
Method for grinding cutting edge by long cutting tool grinderInfo
- Publication number
- JPH07100741A JPH07100741A JP26797093A JP26797093A JPH07100741A JP H07100741 A JPH07100741 A JP H07100741A JP 26797093 A JP26797093 A JP 26797093A JP 26797093 A JP26797093 A JP 26797093A JP H07100741 A JPH07100741 A JP H07100741A
- Authority
- JP
- Japan
- Prior art keywords
- cutting edge
- blade
- grinding
- long
- edge
- 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
- Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、例えばベニヤロータリ
ーナイフやスライサーナイフのような長尺刃物の研削盤
による刃先研削方法に関し、特に刃付け、及び刃先表と
刃先裏とを超仕上げをするに当り、その刃先位置を正確
に設定し、この刃先位置を基準として以後の刃先自動研
削を行なう長尺刃物研削盤による刃先研削方法に関す
る。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for grinding an edge of a long blade such as a veneer rotary knife or a slicer knife by a grinder, and particularly for superfinishing the edge and the front and back of the edge. The present invention relates to a blade edge grinding method using a long tool grinder that accurately sets the blade edge position and performs subsequent blade edge automatic grinding based on the blade edge position.
【０００２】[0002]
【従来の技術】従来は多節硬質の針葉樹材の切削に用い
る長尺刃物の刃先を所定の角度に機械的に研削する研削
盤としては、実開昭６２−４６５４３号公報に記載され
た刃先仕上装置が公知である。この装置は載置台上に固
定された長尺刃物の刃先表及び刃先裏を上下動、前後動
及び揺動可能なホルダに保持された砥石の上下２面によ
りそれぞれ仕上研削をするようにしたものである。この
刃先仕上装置によると、刃付け研削後に従来手作業で行
なっていた刃先の表裏の仕上研削を同一の研削盤に設け
られた本刃先仕上装置により機械的に行うことができ、
刃物の全長にわたって仕上面を均一にすることができ
る。また、長尺刃物の刃先を自動的に超仕上げする装置
としては、特開昭６３−１６９２５７号公報に記載され
た刃先超仕上げ装置が公知である。この装置は、現存す
るナイフグラインダによる主刃面研削後、載置台上に刃
物を押圧保持し、刃物の刃先面に回転砥石を当接させ、
この状態を保持したまま研削すべき量を決定し、次いで
回転砥石を当接位置から、流体圧によって刃先面に付勢
させると共に、刃先の長手方向へ往復動させて倣い研削
することにより刃先を超仕上げするものである。2. Description of the Related Art Conventionally, as a grinder for mechanically grinding a blade edge of a long blade used for cutting a hardwood material having multiple joints to a predetermined angle, a blade edge described in Japanese Utility Model Laid-Open No. 62-46543. Finishing devices are known. This device is designed so that the front and back of the blade edge of a long blade fixed on the mounting table can be vertically moved, and the upper and lower two surfaces of a whetstone held by a holder that can be moved back and forth can perform finish grinding respectively. Is. According to this cutting edge finishing device, it is possible to mechanically perform the finishing grinding of the front and back of the cutting edge, which was conventionally done manually after the grinding with the blade, by the main cutting edge finishing device provided on the same grinder.
The finished surface can be made uniform over the entire length of the blade. Further, as a device for automatically superfinishing the blade edge of a long blade, a blade edge superfinishing device described in JP-A-63-169257 is known. This device, after grinding the main blade surface by the existing knife grinder, press and hold the blade on the mounting table, abutting the rotary grindstone to the blade edge surface of the blade,
While maintaining this state, determine the amount to be ground, then from the abutting position, urge the rotating grindstone to the cutting edge surface by fluid pressure, and reciprocate in the longitudinal direction of the cutting edge to trace-grind the cutting edge. It is a super finish.
【０００３】さらに、特開昭６３−１７４８７４号公
報、特開平２−４９８６３号公報、特開平２−２３２１
６１号公報などにも砥石が被加工物に接触してその回転
が停止するか、砥石駆動モータの作動状態の変化を検知
して砥石と被加工物との接触位置を推定する接触検出方
法や、その砥石駆動モータの停止を検出するための光電
検出手段を備えた装置が開示されている。Further, JP-A-63-174874, JP-A-2-49863, and JP-A-2-2321.
No. 61, etc., a contact detection method for estimating the contact position between the grindstone and the workpiece by detecting the change in the operating state of the grindstone drive motor, or the rotation of the grindstone coming into contact with the workpiece. , An apparatus provided with photoelectric detection means for detecting the stop of the grindstone drive motor.
【０００４】[0004]
【発明が解決しようとする課題】しかしながら、上記第
１の従来技術の研削盤では載置台上に固定された刃物の
刃付け、及び刃先の仕上げ研削を行なうときに、それぞ
れの砥石をハンドル操作による手作業で刃先に対する位
置決めしなければならず、作業性が悪いという問題があ
った。また、上記第２の従来技術の刃先仕上げ装置で
は、前工程の刃付けを行なうためには刃付け研削盤を別
に準備しなければならず、設置スペース、装置の維持管
理、作業効率の点では無駄が多くなるという問題があっ
た。また、これは刃先面に流体圧によって砥石を付勢さ
せることにより刃先を倣い研削する装置であり、長尺刃
物の刃先に歪が存在する場合、研削幅は一定に表われる
が刃先の歪はそのまま残存するという問題もあった。However, in the grinding machine of the first prior art described above, when the blade of the cutting tool fixed on the mounting table and the finishing grinding of the cutting edge are performed, the respective grinding wheels are operated by the handle operation. There is a problem in that workability is poor because the blade must be manually positioned. In addition, in the above-mentioned second prior art blade finishing device, a blade grinding machine must be separately prepared in order to perform the blade in the previous process, and in terms of installation space, maintenance of the device, and work efficiency. There was a problem that there was a lot of waste. In addition, this is a device for copying and grinding the cutting edge by urging a whetstone by fluid pressure on the cutting edge surface, and if there is distortion in the cutting edge of the long blade, the grinding width appears constant but the distortion of the cutting edge is There was also the problem of remaining as it was.
【０００５】さらに、前記３つの公報に開示されている
砥石と被加工物との接触位置を検知する接触検出方法や
接触検知装置においては、全て砥石を低速回転させなが
ら刃先に徐々に近付け、砥石と刃先が直接接触すること
による砥石の回転数の変化を検出装置により検出し、そ
の変化が発生した時点の砥石の位置を刃先位置として推
定していたので、砥石を回転させながら刃先に接近させ
るため砥石と刃先との間に発生する摩擦により砥石の回
転数に変化が起こるまで砥石を長尺刃物の刃先に接触さ
せ、押しつける必要がある。その結果、長尺刃物の刃先
は鋭角で極めて薄くなっているため剛性が小さいので砥
石と長尺刃物の接触点が押されて撓むことになる。Further, in the contact detection method and the contact detection device for detecting the contact position between the grindstone and the workpiece as disclosed in the above three publications, the grindstone is gradually moved closer to the cutting edge while being rotated at a low speed. Since the change in the rotational speed of the grindstone caused by the direct contact between the blade and the cutting edge was detected by the detection device, and the position of the grindstone at the time of the change was estimated as the cutting edge position, the grinding stone is rotated to approach the cutting edge. Therefore, it is necessary to bring the grindstone into contact with the blade edge of the long blade and press it until the rotational speed of the grindstone changes due to the friction generated between the grindstone and the blade edge. As a result, the blade edge of the long blade is sharp and extremely thin, so that the rigidity is low, and the contact point of the grindstone and the long blade is pressed and bent.
【０００６】したがって、上記公知の接触検出方法や接
触検知装置のように砥石を回転させながら刃先に接近さ
せ、その摩擦により砥石の回転数に変化が起こるまで砥
石を長尺刃物の刃先に押しつけて、その回転が停止する
か、回転数の変化を基に刃先位置を推定する方法では、
様々な長尺刃物の刃先研削においてそれぞれの撓み量の
補正が非常に困難であり、厳密に正確な補正は不可能で
ある。そのため次に続く自動研削工程において自動切込
みの設定量以上の実切込量となったり、または設定量以
下の実切込量となって実切込量にバラツキが生じ、長尺
刃物の刃先の研削に大きな悪影響を与える。しかも上記
長尺刃物の刃先の自動研削における自動切込み設定量は
数ミクロンから数十ミクロンの範囲であり、このような
オーダーの切り込み量の場合に砥石の押しつけによる長
尺刃物の刃先の撓み量による誤差は数十ミクロンから数
百ミクロン単位であるから、この誤差は見逃せない重大
問題であった。Therefore, as in the above-described known contact detection method and contact detection device, the grindstone is rotated and brought close to the blade tip, and the grindstone is pressed against the blade tip of the long blade until the rotational speed of the grindstone changes due to the friction. , The method of estimating the blade edge position based on the change of rotation speed or the rotation stops,
It is very difficult to correct the respective bending amounts in the grinding of various cutting edges of long blades, and it is impossible to make a precise correction exactly. Therefore, in the subsequent automatic grinding process, the actual depth of cut exceeds the set amount of automatic cutting, or the actual depth of cut becomes less than the set amount, causing variations in the actual depth of cut, and It has a great adverse effect on grinding. Moreover, the automatic cutting setting amount in the automatic grinding of the blade of the long blade is in the range of several microns to several tens of microns, and in the case of the cutting amount of such an order, it depends on the bending amount of the blade of the long blade due to the pressing of the grindstone. Since the error is in the range of tens to hundreds of microns, this error was a serious problem that cannot be overlooked.
【０００７】本発明は、上記の事情に鑑みてなされたも
のであり、砥石の押しつけによる長尺刃物の刃先の撓み
量を完全に消去して、正確な刃先位置を設定して砥石の
位置決めを行い、以後の刃先の自動研削はこの刃先位置
を基準として長尺刃物の刃付けと、刃先の刃先表及び刃
先裏の刃先仕上研削を行なう長尺刃物研削盤による刃先
研削方法を提供することを目的としている。The present invention has been made in view of the above circumstances, and completely eliminates the amount of bending of the blade edge of a long blade due to the pressing of the stone, and sets an accurate blade edge position to position the blade. Perform the automatic cutting of the cutting edge thereafter, and to provide a method of cutting the cutting edge with a long cutting tool grinder that performs grinding of the cutting edge on the basis of this cutting edge position and finish grinding of the cutting edge surface of the cutting edge and the back of the cutting edge. Has an aim.
【０００８】[0008]
【課題を解決するための手段】本発明は、上記目的を達
成するための、長尺刃物研削盤に設けられた複数の砥石
の回転により長尺刃物の刃先の研削を行なう刃先研削方
法において、前記１つの砥石を回転させながら長尺刃物
の刃先に接近させ、該砥石が前記長尺刃物の刃先に当接
して回転が停止した後、徐々に刃先から該砥石が離れる
方向に移動させ、再び該砥石が回転を始めた瞬間の位置
を刃先位置とし、以後の刃先の自動研削は該刃先位置を
基準として刃付け、及び刃先表と刃先裏との超仕上げを
行なうことを特徴とした長尺刃物研削盤による刃先研削
方法である。In order to achieve the above object, the present invention provides a cutting edge grinding method for grinding a cutting edge of a long blade by rotating a plurality of grindstones provided on a long blade grinding machine, While rotating the one grindstone to approach the blade edge of the long blade, after the grindstone abuts the blade edge of the long blade to stop the rotation, gradually move the grindstone away from the blade edge, and again A long position characterized in that the position at the moment when the grindstone starts to rotate is the cutting edge position, and subsequent automatic grinding of the cutting edge performs cutting with the cutting edge position as a reference, and superfinishing of the cutting edge surface and the back of the cutting edge. It is a method of grinding the cutting edge by a cutting tool grinder.
【０００９】[0009]
【作用】次に、本発明の作用について説明すると、１つ
の砥石を回転させながら砥石を刃先に接近させていき、
砥石が前記長尺刃物の刃先に当接して回転が停止した
後、徐々に刃先からその砥石が離れる方向に移動させ、
再びこの砥石が回転を始めた瞬間の位置を刃先位置と
し、以後の刃先研削はその刃先位置を基準として刃付
け、及び刃先表と刃先裏との超仕上げ研削を行なうから
砥石の押しつけによる長尺刃物の刃先の撓み量による誤
差を完全に消去して極めて正確な自動研削が可能であ
る。Next, the operation of the present invention will be described. While rotating one grindstone, the grindstone is brought closer to the cutting edge,
After the grindstone comes into contact with the blade of the long blade and the rotation is stopped, the grindstone is gradually moved in a direction away from the blade,
The position at the moment when this whetstone starts to rotate again is the cutting edge position, and the subsequent cutting of the cutting edge carries out cutting with the cutting edge position as a reference, and super-finish grinding between the cutting edge surface and the back of the cutting edge is performed. It is possible to completely eliminate the error due to the bending amount of the blade edge of the blade and perform extremely accurate automatic grinding.
【００１０】[0010]
【実施例】本発明に係る長尺刃物研削盤による刃先研削
方法の一実施例について図面を参照して説明する。図１
および図２には一実施例を示している。図１において、
長尺のベッド１には複数個の電磁チャック２を介して長
尺刃物３が固定されている。ベッド１上には長手方向に
沿って左右１対のレール４が設けられており、レール４
上にはコラム５が移動自在に載置されている。コラム５
には研削砥石上下送りモータ６が軸方向に垂直に取り付
けらており、モータ６の駆動軸には送りねじ７が同軸上
に固定されている。この送りねじ７には雌ねじ部８を介
して研削用モータ９が上下動可能に取り付けられてお
り、モータ９の垂直方向の駆動軸１０には研削砥石１１
が固定されていて、モータ９の回転により長尺刃物３の
刃先３ａを刃付け研削するようになっている。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of a method for grinding a cutting edge with a long tool grinder according to the present invention will be described with reference to the drawings. Figure 1
An embodiment is shown in FIG. In FIG.
A long blade 3 is fixed to the long bed 1 via a plurality of electromagnetic chucks 2. A pair of left and right rails 4 are provided on the bed 1 along the longitudinal direction.
A column 5 is movably mounted on the top. Column 5
A grinding wheel vertical feed motor 6 is mounted vertically on the shaft, and a feed screw 7 is coaxially fixed to the drive shaft of the motor 6. A grinding motor 9 is vertically movably attached to the feed screw 7 via a female screw portion 8, and a grinding wheel 11 is attached to a drive shaft 10 in the vertical direction of the motor 9.
Is fixed, and the blade edge 3a of the long blade 3 is bladed and ground by the rotation of the motor 9.
【００１１】また、コラム５には、図２に示すように超
仕上装置１２が設けられている。この超仕上装置１２は
コラム５に固定された左右移動用モータ１３と、このモ
ータ１３によって左右方向に移動するブラケット１４
と、このブラケット１４に固定された上下移動用モータ
１５と、このモータ１５によって上下方向に移動するブ
ラケット１６と、このブラケット１６に旋回可能に取り
付けられた１対の仕上送りモータ１７、１８とからなっ
ている。そして仕上送りモータ１７、１８の駆動軸には
それぞれ同軸上に固定された送りねじ１９、２０によっ
て仕上研削用モータ２１、２２が軸方向に移動可能とな
っており、これらのモータ２１、２２によってそれぞれ
刃表超仕上砥石２３及び刃裏超仕上砥石２４が回転され
て長尺刃物３の刃先の刃表及び刃裏の仕上研削を行なう
ようになっている。Further, the column 5 is provided with a super finishing device 12 as shown in FIG. The superfinishing device 12 includes a horizontal movement motor 13 fixed to the column 5, and a bracket 14 that is moved in the horizontal direction by the motor 13.
And a vertical movement motor 15 fixed to the bracket 14, a bracket 16 vertically moved by the motor 15, and a pair of finish feed motors 17 and 18 rotatably attached to the bracket 16. Has become. The finish feed motors 17, 22 are axially movable by feed screws 19, 20 coaxially fixed to the drive shafts of the finish feed motors 17, 18, respectively. The blade surface super-finishing grindstone 23 and the blade back super-finishing grindstone 24 are respectively rotated to perform the finish grinding of the blade surface and the back of the blade of the long blade 3.
【００１２】また、左右移動用モータ１３の回転はウォ
ーム２５とウォームギア２６により減速され、上下移動
用モータ１５も同様にウォーム（図示せず）とウォーム
ギヤ（図示せず）により減速される。仕上送りモータ１
７は旋回用モータ２７、ウォーム２８及びウォームギア
２９を介して旋回回動される。また、前記研削用モータ
９、仕上げ研削用モータ２１、２２のそれぞれの駆動軸
には回転検出器３０、３１、３２が取り付けられてお
り、これらの検出にはロータリーエンコーダーを使用す
るが、別の実施例として、外周に歯車状の凹凸部が形成
された回転体と、この凹凸部を検出する近接スイッチや
光電スイッチなどの検知部とを使用して安価に構成する
こともできる。なお、符号３３は操作盤である。The rotation of the left / right moving motor 13 is decelerated by the worm 25 and the worm gear 26, and the vertical moving motor 15 is also decelerated by the worm (not shown) and the worm gear (not shown). Finish feed motor 1
7 is rotated and rotated via a turning motor 27, a worm 28, and a worm gear 29. Further, rotation detectors 30, 31, and 32 are attached to the drive shafts of the grinding motor 9 and the finish grinding motors 21 and 22, respectively. A rotary encoder is used to detect these, but As an example, it is possible to inexpensively configure by using a rotating body having a gear-shaped uneven portion formed on the outer periphery and a detection unit such as a proximity switch or a photoelectric switch that detects the uneven portion. The reference numeral 33 is an operation panel.
【００１３】次に本発明に係る長尺刃物研削盤による刃
先研削方法における刃先位置設定法の実例を図３及び図
４に示すフローチャートを参照して説明する。図３に示
すメインルーチンにおいて、コラム５はベッド１上の任
意の位置にある。この装置の刃付自動釦が押されると、
コラム５はベッド１上の予め定められた位置へ移動して
停止し、ここで後述する刃先位置の設定法によって研削
すべき刃先位置を設定する。この設定が終るとコラム５
をベッド１の一端に移動し、刃先位置設定時の高さに砥
石１１を下降する。そして研削盤による通常の自動研削
を行ない刃先の刃付を行なう。このときコラム５がベッ
ド１の一端から他端まで移動するときの１回当たりの切
込量、切込回数及びスパークアウト回数は予め設定され
ている。刃付が終了した後研削砥石１１を上昇させ、コ
ラム５をベッド１の一端に移動して刃付工程を終了す
る。Next, an actual example of the blade edge position setting method in the blade edge grinding method using the long blade grinder according to the present invention will be described with reference to the flow charts shown in FIGS. In the main routine shown in FIG. 3, the column 5 is located at any position on the bed 1. When the automatic button with blade of this device is pressed,
The column 5 moves to a predetermined position on the bed 1 and stops, and the cutting edge position to be ground is set by the method of setting the cutting edge position described below. Column 5 after this setting
Is moved to one end of the bed 1, and the grindstone 11 is lowered to the height at the time of setting the cutting edge position. Then, normal automatic grinding is performed by a grinder to attach the cutting edge. At this time, the cut amount, the number of cuts, and the number of spark outs per time when the column 5 moves from one end to the other end of the bed 1 are set in advance. After the blade attachment is completed, the grinding wheel 11 is raised and the column 5 is moved to one end of the bed 1 to complete the blade attachment process.
【００１４】次に、刃先の刃表及び刃裏の超仕上研削に
ついて説明する。超仕上自動釦が押されたとき制御装置
に刃先超仕上動作の各定数が設定されているため各モー
タ１３、１５、１７、１８、２７が作動して超仕上砥石
２３、２４所定の位置に移動する。次に後述する超仕上
刃先位置の設定法によって超仕上研削すべき刃先位置を
設定する。この設定が終ると予め設定された刃表及び刃
裏の１回当たりの切込量、切込回数、スパークアウト回
数などの設定条件に従って超仕上研削が行なわれる。こ
の研削が完了するとコラム５をベッド１の一端に移動し
て超仕上研削工程を終了する。なお、刃付工程中に超仕
上自動釦が押されたときは、刃付工程完了後連続して超
仕上工程に入るようになっている。Next, super finishing grinding of the front and back of the cutting edge will be described. When the automatic super finishing button is pressed, each constant of the cutting edge super finishing operation is set in the control device, so that the motors 13, 15, 17, 18, 27 are activated and the super finishing grindstones 23, 24 are moved to predetermined positions. Moving. Next, the position of the cutting edge to be super-finish ground is set by the method of setting the position of the super-finishing cutting edge described below. When this setting is completed, superfinishing grinding is performed according to preset setting conditions such as the cutting amount per cutting of the front and back surfaces of the blade, the number of times of cutting, the number of spark outs, and the like. When this grinding is completed, the column 5 is moved to one end of the bed 1 and the super-finish grinding process is completed. In addition, when the super finishing automatic button is pressed during the blade attaching process, the super finishing process is continuously performed after the completion of the blade attaching process.
【００１５】次に、刃先位置設定法を図４に示すサブル
ーチンを参照して説明する。まず、刃付用の研削砥石１
１による刃先位置設定時には研削用モータ９の回転数を
約９０rpm 以下とし、トルクを定格の約６％以下とす
る。これは接触時に砥石で刃物が削られないようにする
ためと、接触してモータ９が停止したときに過電流が流
れないようにするためである。研削用砥石１１は長尺刃
物３の刃先３ａに接近させていき、砥石１１と刃先３ａ
との間に発生する押しつけ力によって、鋭角で極めて薄
くなっている長尺刃物の刃先３ａの接触点が押されて撓
みながら砥石回転数がさらに低下して停止した後、徐々
に刃先から砥石１１が離れる方向に移動させると、再び
長尺刃物の刃先３ａの撓みがが弾性によって復元し、砥
石１１が回転を始めた瞬間の砥石１１の下面が刃先３ａ
の真の位置として刃先位置が設定される。以後の刃先３
ａの自動研削はこの刃先位置を基準として行なわれる。Next, the blade edge position setting method will be described with reference to the subroutine shown in FIG. First, a grinding wheel for blades 1
When setting the blade edge position by 1, the rotation speed of the grinding motor 9 is set to about 90 rpm or less and the torque is set to about 6% or less of the rated value. This is to prevent the blade from being cut by the grindstone at the time of contact, and to prevent an overcurrent from flowing when the motor 9 stops due to contact. The grindstone 11 for grinding is made to approach the blade edge 3a of the long blade 3, and the grindstone 11 and the blade edge 3a.
By the pressing force generated between the blade and the blade, the contact point of the blade edge 3a of the long blade, which is extremely thin at an acute angle, is pressed and bent, and the wheel rotational speed further decreases and then stops. When the blade is moved in a direction away from the blade edge 3a, the bending of the blade edge 3a of the long blade is restored again by elasticity, and the lower surface of the wheel edge 11 at the moment when the wheel edge 11 starts to rotate is the blade edge 3a.
The cutting edge position is set as the true position of. Subsequent cutting edge 3
The automatic grinding of a is performed with this blade position as a reference.
【００１６】また、超仕上砥石２３、２４による研削工
程における刃先位置設定も同様に行なわれる。ただしこ
のときの超仕上砥石２３、２４の回転数は約１５０rpm
以下、トルクは定格の約６％以下とする。The setting of the cutting edge position in the grinding process by the superfinishing grindstones 23 and 24 is also performed in the same manner. However, the rotation speed of the super-finishing grindstones 23 and 24 at this time is about 150 rpm.
Hereinafter, the torque is about 6% or less of the rating.
【００１７】本実施例によれば、長尺刃物研削盤によっ
て長尺刃物３を自動研削する場合に、長尺刃物３の研削
される刃先３ａの位置が正確に設定され、以後の刃先３
ａの自動研削はこの刃先位置を基準として行なわれるか
ら、手作業による砥石１１、２３、２４の刃物３へ接近
位置決め作業が完全に不要となり、その後の自動研削作
業の効果を向上することができる。According to this embodiment, when the long blade 3 is automatically ground by the long blade grinder, the position of the blade edge 3a to be ground of the long blade 3 is accurately set, and the subsequent blade edges 3
Since the automatic grinding of "a" is performed with reference to the position of the cutting edge, the manual positioning work of the grindstones 11, 23, 24 for approaching the blade 3 is completely unnecessary, and the effect of the subsequent automatic grinding work can be improved. .
【００１８】[0018]
【発明の効果】以上説明した本発明によれば、砥石を長
尺刃物に接近させて砥石が長尺刃物の刃先に当接し撓ま
せて回転が停止した後、徐々に刃先からその砥石が離れ
る方向に移動させ、刃先の撓みが復元しながら再び砥石
が回転を始めた瞬間の位置を刃先位置とし、以後の刃先
の自動研削はこの刃先位置を基準として刃付け、及び刃
先表と刃先裏との超仕上げを行なうので、砥石の摩耗や
刃物の種類または幅の違いにより生じる砥石による刃先
の撓みの誤差には全く関係なく、長尺刃物の刃先位置が
正確に設定され、手作業による砥石の位置決め作業が不
要となり、刃付け研削から刃先の超仕上工程まで一貫し
た自動化が図られるので研削作業の効率を一段と向上す
ることができる。According to the present invention described above, the grindstone is gradually moved away from the cutting edge after the grindstone is brought into contact with the long cutting edge so that the grindstone abuts against the cutting edge of the long cutting edge and bends to stop the rotation. The blade edge position at the moment when the whetstone starts rotating again while the bending of the blade edge is restored, and the subsequent automatic grinding of the blade edge is based on this blade edge position, and the edge surface and the edge surface Since the super finishing is performed, the blade edge position of the long blade is accurately set regardless of the error of the blade deflection caused by the abrasion of the stone and the difference in the type or width of the blade, Positioning work is not required, and since the automation from the grinding of the blade to the super-finishing process of the cutting edge is consistently achieved, the efficiency of the grinding work can be further improved.
【００１９】したがって、真の刃先位置を設定できるの
で自動研削時の自動切込量をそのまま刃先に与えること
ができるので、以後の刃先の自動研削における自動切込
量と切込回数とで与えられる理想的な刃先の形状が容易
に得られるため様々な長尺刃物の刃先研削において特に
加工精度に優れた効果を奏する。Therefore, since the true cutting edge position can be set, the automatic cutting amount at the time of automatic grinding can be given to the cutting edge as it is, and it is given by the automatic cutting amount and the number of cuttings in the subsequent automatic grinding of the cutting edge. Since the ideal shape of the cutting edge can be easily obtained, a particularly excellent working accuracy is achieved in cutting the cutting edge of various long blades.
【図１】本発明に使用する長尺刃物研削盤の一実施例を
示す側面図である。FIG. 1 is a side view showing an embodiment of a long blade grinder used in the present invention.
【図２】同じく一実施例の超仕上装置部を示す側面図で
ある。FIG. 2 is a side view showing the super-finishing device section of the same embodiment.
【図３】本発明に係る長尺刃物研削盤による刃先研削方
法の操作を示すフローチャートである。FIG. 3 is a flowchart showing an operation of a blade edge grinding method using a long blade grinder according to the present invention.
【図４】同じく刃先研削方法の刃先位置設定法を説明し
たフローチャートである。FIG. 4 is a flowchart for explaining a blade edge position setting method of the blade edge grinding method.
１ 長尺ベッド ２ 電磁チャック ３ 長尺刃物 ３ａ 刃先 ５ コラム ６ 上下送りモータ ９ 研削用モータ １１ 研削砥石 １５ 上下移動用モータ １７、１８ 仕上送りモータ ２１、２２ 仕上研削用モータ ２３ 刃表超仕上砥石 ２４ 刃裏超仕上砥石 ３０、３１、３２ 回転検出器 1 Long Bed 2 Electromagnetic Chuck 3 Long Tool 3a Blade Edge 5 Column 6 Vertical Feed Motor 9 Grinding Motor 11 Grinding Wheel 15 Vertical Moving Motor 17, 18 Finish Feed Motor 21, 22 Finish Grinding Motor 23 Blade Table Super Finishing Grindstone 24 Blade back super finishing whetstone 30, 31, 32 Rotation detector
Claims (1)
の回転により長尺刃物の刃先の研削を行なう刃先研削方
法において、前記１つの砥石を回転させながら長尺刃物
の刃先に接近させ、該砥石が前記長尺刃物の刃先に当接
して回転が停止した後、徐々に刃先から該砥石が離れる
方向に移動させ、再び該砥石が回転を始めた瞬間の位置
を刃先位置とし、以後の刃先の自動研削は該刃先位置を
基準として刃付け、及び刃先表と刃先裏との超仕上げを
行なうことを特徴とした長尺刃物研削盤による刃先研削
方法。1. A cutting edge grinding method for grinding a cutting edge of a long cutting tool by rotating a plurality of grinding wheels provided on a long cutting tool grinding machine, wherein one cutting wheel is rotated to approach the cutting edge of the long cutting tool. After the rotation of the whetstone comes into contact with the blade edge of the long blade and the rotation is stopped, the whetstone is gradually moved in a direction in which the whetstone is separated from the blade edge, and the position at the moment when the whetstone starts rotating is defined as the blade tip position. The automatic grinding of the blade edge is performed by using the blade edge position as a reference, and superfinishing the front and back of the blade edge with a long blade grinder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP26797093A JPH07100741A (en) | 1993-09-30 | 1993-09-30 | Method for grinding cutting edge by long cutting tool grinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP26797093A JPH07100741A (en) | 1993-09-30 | 1993-09-30 | Method for grinding cutting edge by long cutting tool grinder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH07100741A true JPH07100741A (en) | 1995-04-18 |
Family
ID=17452122
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP26797093A Pending JPH07100741A (en) | 1993-09-30 | 1993-09-30 | Method for grinding cutting edge by long cutting tool grinder |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH07100741A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002273644A (en) * | 2001-03-15 | 2002-09-25 | Uht Corp | Grinding and polishing device for cutting blade |
| JP2009214224A (en) * | 2008-03-10 | 2009-09-24 | Toyo Knife Co Ltd | Cutter grinder |
| CN115570701A (en) * | 2022-10-24 | 2023-01-06 | 山东颐工材料科技股份有限公司 | Underwater granulating unit of granulator for MBS resin production |
-
1993
- 1993-09-30 JP JP26797093A patent/JPH07100741A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002273644A (en) * | 2001-03-15 | 2002-09-25 | Uht Corp | Grinding and polishing device for cutting blade |
| JP2009214224A (en) * | 2008-03-10 | 2009-09-24 | Toyo Knife Co Ltd | Cutter grinder |
| CN115570701A (en) * | 2022-10-24 | 2023-01-06 | 山东颐工材料科技股份有限公司 | Underwater granulating unit of granulator for MBS resin production |
| CN115570701B (en) * | 2022-10-24 | 2023-05-30 | 山东颐工材料科技股份有限公司 | Underwater granulating unit of granulator for MBS resin production |
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