JPH0655341A - Gear and tool measuring method in nc gear cutting machine - Google Patents
Gear and tool measuring method in nc gear cutting machineInfo
- Publication number
- JPH0655341A JPH0655341A JP4238994A JP23899492A JPH0655341A JP H0655341 A JPH0655341 A JP H0655341A JP 4238994 A JP4238994 A JP 4238994A JP 23899492 A JP23899492 A JP 23899492A JP H0655341 A JPH0655341 A JP H0655341A
- Authority
- JP
- Japan
- Prior art keywords
- gear
- tool
- machining
- measuring device
- stand
- 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
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23F—MAKING GEARS OR TOOTHED RACKS
- B23F23/00—Accessories or equipment combined with or arranged in, or specially designed to form part of, gear-cutting machines
- B23F23/12—Other devices, e.g. tool holders; Checking devices for controlling workpieces in machines for manufacturing gear teeth
- B23F23/1218—Checking devices for controlling workpieces in machines for manufacturing gear teeth
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Gear Processing (AREA)
- Machine Tool Sensing Apparatuses (AREA)
Abstract
Description
【0001】[0001]
【産業上の利用分野】この発明は、工具によって加工歯
車の歯面を歯切り加工または研削加工するNC歯車加工
機に関するものであり、特にその歯車および工具測定方
法に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an NC gear machine for cutting or grinding a tooth surface of a machined gear with a tool, and more particularly to a gear and a tool measuring method therefor.
【0002】[0002]
【従来技術とその問題点】加工歯車の歯面を歯切り加工
または研削加工するとき、NCホブ盤などのNC歯車加
工機が一般に使用されている。NC歯車加工機では、工
具台に工具が取り付けられ、歯車台に加工歯車が取り付
けられ、NC歯車加工機のNC装置によって工具台と歯
車台が数値制御され、工具と加工歯車が相対的に移動
し、加工歯車がその軸芯のまわりを回転し、工具によっ
て加工歯車の歯面が歯切り加工または研削加工される。
ねじ状工具を使用した歯車加工機では、加工歯車がその
軸芯のまわりを回転すると同時に、工具もその軸芯のま
わりを回転する。2. Description of the Related Art NC gear cutting machines such as an NC hobbing machine are generally used when cutting or grinding a tooth surface of a processed gear. In the NC gear processing machine, the tool is attached to the tool stand, the processing gear is attached to the gear stand, and the NC machine of the NC gear processing machine numerically controls the tool stand and the gear stand, and the tool and the working gear move relative to each other. Then, the processed gear rotates around its axis, and the tooth surface of the processed gear is subjected to gear cutting or grinding by a tool.
In a gear processing machine using a threaded tool, the processing gear rotates about its axis, and at the same time, the tool also rotates about its axis.
【0003】ところで、NC歯車加工機において、荒加
工した歯車の焼き入れ後、その歯面を歯切り加工または
研削加工し、仕上げ加工するとき、従来は荒加工した歯
車の歯溝の振れにともなう問題があった。荒加工した歯
車の歯面を的確に歯切り加工または研削加工するには、
歯車台に加工歯車を取り付けた後、歯溝の振れが最小値
である加工歯車の角度位置において、工具と加工歯車を
互いに位相合わせする必要がある。このため、これま
で、加工歯車の取り付け後、作業者の目視により、工具
を加工歯車の歯溝に入れる。その後、工具および加工歯
車をそれぞれ回転させ、歯車の右歯面および左歯面を別
々にわずかずつ削り込み、両歯面の削り跡のバランス状
態により、手作業で歯車台または工具台の角度位置をず
らせ、工具と加工歯車を互いに位置合わせしていたが、
時間および労力が要求され、その作業は容易ではないと
いう問題があったものである。By the way, in an NC gear processing machine, when a roughened gear is hardened and then its tooth surface is subjected to gear cutting or grinding to finish processing, conventionally, it is accompanied by runout of a tooth groove of the roughened gear. There was a problem. To precisely cut or grind the tooth flanks of rough-machined gears,
After the work gear is attached to the gear stand, it is necessary to align the tool and the work gear with each other at the angular position of the work gear where the runout of the tooth groove is the minimum value. For this reason, until now, after mounting the processed gear, the operator inserts the tool into the tooth groove of the processed gear by visual inspection. After that, rotate the tool and the machined gear respectively, and slightly grind the right and left flanks of the gear separately, and manually adjust the angular position of the gear stand or tool stand depending on the balance of the marks on both flanks. The tool and the machining gear were aligned with each other,
The problem is that time and labor are required and the work is not easy.
【0004】また、加工歯車の加工後、普通、加工歯車
を歯車台から取り外し、歯車測定機によって加工歯車の
加工精度を測定しているが、加工精度が低いとき、加工
歯車の歯面を再度歯切り加工または研削加工する必要が
ある。したがって、歯車加工機の歯車台において、加工
歯車を再度取り付ける必要があり、面倒であるという問
題もある。特に、重量の大きい歯車を何回も取り付ける
のは重労働である。Further, after machining the machined gear, the machined gear is normally removed from the gear stand, and the machining accuracy of the machined gear is measured by a gear measuring machine. Gear cutting or grinding is required. Therefore, it is necessary to attach the processed gear again in the gear stand of the gear processing machine, which is also a troublesome problem. Especially, it is hard work to install a heavy gear many times.
【0005】さらに、工具の加工精度および取り付け精
度の問題もある。工具台に取り付けられた工具の加工精
度および取り付け精度が加工歯車の加工精度に影響する
ことがある。Further, there is a problem of machining accuracy and mounting accuracy of the tool. The machining accuracy of the tool attached to the tool base and the attachment accuracy may affect the machining accuracy of the machined gear.
【0006】[0006]
【発明の目的】したがって、この発明は、工具によって
加工歯車の歯面を歯切り加工または研削加工するNC歯
車加工機において、前記従来の問題を解決し、加工歯車
の加工前、作業者の目視および手作業で加工歯車の歯溝
の振れを測定する必要がないようにすること、加工歯車
の加工後、加工歯車を歯車台から取り外さず、歯車台に
取り付けた状態で加工歯車の加工精度を測定すること、
および工具台に取り付けられた工具の加工精度および取
り付け精度を測定することを目的としてなされたもので
ある。SUMMARY OF THE INVENTION Accordingly, the present invention solves the above-mentioned conventional problems in an NC gear cutting machine that cuts or grinds the tooth flanks of a machined gear with a tool, before machining the machined gear and before the operator visually observes. And it is not necessary to manually measure the runout of the tooth groove of the machined gear, and after machining the machined gear, do not remove the machined gear from the gear stand, and improve the machining accuracy of the machined gear while attached to the gear stand. Measuring,
It is intended to measure the machining accuracy and the mounting accuracy of the tool mounted on the tool base.
【0007】[0007]
【発明の構成】この発明によれば、加工歯車の加工前、
工具台に歯車測定装置が取り付けられる。その後、NC
歯車加工機のNC装置によって工具台と歯車台が数値制
御され、歯車測定装置と加工歯車が相対的に移動し、加
工歯車がその軸芯のまわりを回転し、歯車測定装置によ
って加工歯車の歯溝の振れが測定され、歯溝の振れが最
小値である加工歯車の角度位置が求められる。According to the present invention, before machining the machined gear,
A gear measuring device is attached to the tool stand. Then NC
The tool base and gear base are numerically controlled by the NC device of the gear processing machine, the gear measuring device and the processing gear move relative to each other, the processing gear rotates around its axis, and the teeth of the processing gear are rotated by the gear measuring device. The runout of the groove is measured and the angular position of the machined gear for which the runout of the tooth space is the minimum is determined.
【0008】加工歯車の加工後、工具台に歯車測定装置
を取り付け、NC歯車加工機のNC装置によって工具台
と歯車台を数値制御し、歯車測定装置と加工歯車を相対
的に移動させ、加工歯車をその軸芯のまわりに回転さ
せ、歯車測定装置によって加工歯車の加工精度を測定し
てもよい。After processing the processed gear, a gear measuring device is attached to the tool stand, and the NC device of the NC gear processing machine numerically controls the tool stand and the gear stand to move the gear measuring device and the working gear relative to each other. The gear may be rotated around its axis, and the machining accuracy of the machined gear may be measured by a gear measuring device.
【0009】さらに、歯車台に工具測定装置を取り付
け、NC歯車加工機のNC装置によって工具台と歯車台
を数値制御し、工具と工具測定装置を相対的に移動さ
せ、工具をその軸芯のまわりに回転させ、工具測定装置
によって工具の加工精度および取り付け精度を測定して
もよい。Further, a tool measuring device is attached to the gear stand, and the NC device of the NC gear cutting machine numerically controls the tool stand and the gear stand so that the tool and the tool measuring device are moved relative to each other, and the tool is attached to its axial center. It may be rotated around and the machining accuracy and mounting accuracy of the tool may be measured by the tool measuring device.
【0010】[0010]
【実施例の説明】以下、この発明の実施例を説明する。Description of Embodiments Embodiments of the present invention will be described below.
【0011】図1において、これは加工歯車Wの歯面を
歯切り加工または研削加工するNC歯車加工機であり、
工具台1および歯車台2を有する。そして、加工歯車W
の歯面を歯切り加工または研削加工するとき、工具台1
に工具Tが取り付けられ、歯車台2に加工歯車Wが取り
付けられ、NC歯車加工機のNC装置によって工具台1
と歯車台2が数値制御され、X軸方向、Y軸方向および
Z軸方向において、工具Tと加工歯車Wが相対的に移動
する。これと同時に、工具Tおよび加工歯車Wがその軸
芯のまわりを回転し、工具Tによって加工歯車Wの歯面
が歯切り加工または研削加工される。なお、Z軸方向は
加工歯車Wの軸芯に平行の方向であり、加工歯車WはZ
軸のまわりを回転する。また、測定のとき、Y軸方向は
X軸およびZ軸に直交する方向に設定され、その方向は
工具Tの軸芯に平行の方向であり、工具TはY軸のまわ
りを回転する。In FIG. 1, this is an NC gear cutting machine for cutting or grinding the tooth surface of the processed gear W,
It has a tool stand 1 and a gear stand 2. And the processed gear W
When cutting or grinding the tooth surface of the
The tool T is attached to the gear base 2, the machining gear W is attached to the gear base 2, and the tool base 1 is attached by the NC device of the NC gear machining machine.
The gear base 2 is numerically controlled, and the tool T and the machining gear W relatively move in the X-axis direction, the Y-axis direction, and the Z-axis direction. At the same time, the tool T and the machining gear W rotate around their axes, and the tooth surface of the machining gear W is gear-cut or ground by the tool T. The Z-axis direction is parallel to the axis of the processed gear W, and the processed gear W is
Rotate around an axis. Further, at the time of measurement, the Y-axis direction is set to a direction orthogonal to the X-axis and the Z-axis, the direction is parallel to the axis of the tool T, and the tool T rotates around the Y-axis.
【0012】また、この歯車加工機では、加工歯車Wの
加工前、工具台1に歯車測定装置3が取り付けられる。
図2に示すように、歯車測定装置3はボール4およびレ
バー5を有し、ボール4はレバー5に固定されている。
レバー5は摺動台6のピン7に取り付けられており、ピ
ン7のまわりを揺動することができる。摺動台6は取り
付け具8のガイド溝9に嵌め込まれており、ガイド溝9
に沿って摺動することができる。また、スプリング10
によってレバー5が弾性付勢され、レバー5はストッパ
11に係合し、スプリング12によって摺動台6が弾性
付勢され、摺動台6はストッパ13に係合する。さら
に、工具台1の位置決めブロック14によって取り付け
具8が位置決めされ、その状態で、取り付け具8が工具
台1に取り付けられ、ガイド溝9はX軸方向にのび、ピ
ン7はZ軸方向にのびる。したがって、摺動台6はX軸
方向に移動可能であり、レバー5はZ軸のまわりを揺動
可能である。In this gear processing machine, the gear measuring device 3 is attached to the tool base 1 before the processing of the processed gear W.
As shown in FIG. 2, the gear measuring device 3 has a ball 4 and a lever 5, and the ball 4 is fixed to the lever 5.
The lever 5 is attached to the pin 7 of the slide base 6, and can swing around the pin 7. The slide base 6 is fitted into the guide groove 9 of the attachment tool 8, and the guide groove 9
Can slide along. Also, the spring 10
The lever 5 is elastically urged by the lever 5, the lever 5 is engaged with the stopper 11, and the sliding base 6 is elastically urged by the spring 12 so that the sliding base 6 is engaged with the stopper 13. Further, the mounting tool 8 is positioned by the positioning block 14 of the tool base 1, and in this state, the mounting tool 8 is mounted on the tool base 1, the guide groove 9 extends in the X-axis direction, and the pin 7 extends in the Z-axis direction. . Therefore, the slide base 6 can move in the X-axis direction, and the lever 5 can swing about the Z-axis.
【0013】そして、NC歯車加工機のNC装置によっ
て工具台1と歯車台2が数値制御され、Y軸方向および
Z軸方向において、歯車測定装置3と加工歯車Wが相対
的に移動し、ピン7と加工歯車Wの軸芯がX軸方向に整
合される。次いで、歯車台2および加工歯車Wが図2の
反時計方向に回転し、加工歯車Wの歯溝のうち、選定さ
れた歯溝が歯車測定装置3に接近してきたとき、X軸方
向において、歯車測定装置3と加工歯車Wが相対的に移
動し、互いに接近し、図2の位置で停止する。したがっ
て、ボール4が加工歯車Wの歯溝に嵌め込まれ、加工歯
車Wの回転にともない、加工歯車Wの歯溝によってボー
ル4が押され、ボール4およびレバー5が図2の時計方
向に揺動し、摺動台6が図2の左方向に移動する。Then, the NC device of the NC gear processing machine numerically controls the tool stand 1 and the gear stand 2, and the gear measuring device 3 and the working gear W relatively move in the Y-axis direction and the Z-axis direction, and the pin 7 and the shaft center of the processed gear W are aligned in the X-axis direction. Next, when the gear stand 2 and the processed gear W rotate counterclockwise in FIG. 2 and a selected tooth groove of the processed gear W approaches the gear measuring device 3, in the X-axis direction, The gear measuring device 3 and the processed gear W relatively move, approach each other, and stop at the position shown in FIG. Therefore, the ball 4 is fitted into the tooth groove of the machining gear W, and the ball 4 is pushed by the tooth groove of the machining gear W as the machining gear W rotates, so that the ball 4 and the lever 5 swing clockwise in FIG. Then, the slide base 6 moves to the left in FIG.
【0014】さらに、マグネスケールまたは近接距離セ
ンサなどの距離測定器15によって摺動台6の移動量が
測定され、図3に示すように、レバー5がX軸方向にの
び、その突起16が近接位置センサなどの位置検出器1
7に達したとき、位置検出器17によってそれが検出さ
れ、NC装置によって加工歯車Wの角度位置が読み取ら
れる。その後、レバー5の突起16が近接位置センサな
どの位置検出器18に達したとき、位置検出器18によ
ってそれが検出され、X軸方向において、歯車測定装置
3と加工歯車Wが相対的に移動し、ボール4が加工歯車
Wの歯溝から離れ、スプリング10,12によってレバ
ー5および摺動台6が押し戻され、レバー5はもとの位
置に揺動し、ストッパ11に係合し、摺動台6はもとの
位置に移動し、ストッパ13に係合する。さらに、位置
検出器18によってレバー5の突起16が検出されたと
き、NC装置によって距離測定器15のピークホールド
値が読み取られ、これによって加工歯車Wの歯溝の振れ
が測定される。距離測定器15および位置検出器17に
ついては、歯車測定装置3の取り付け前または取り付け
後、図4に示すように、基準ゲージ19によって距離測
定器15および位置検出器17を校正することができ
る。Further, the amount of movement of the slide table 6 is measured by a distance measuring device 15 such as a magnescale or a proximity distance sensor, and as shown in FIG. 3, the lever 5 extends in the X-axis direction and the protrusion 16 thereof approaches. Position detector such as position sensor 1
When it reaches 7, it is detected by the position detector 17 and the angular position of the processed gear W is read by the NC device. After that, when the protrusion 16 of the lever 5 reaches the position detector 18 such as a proximity position sensor, the position detector 18 detects it and the gear measuring device 3 and the machining gear W relatively move in the X-axis direction. Then, the ball 4 is separated from the tooth groove of the processed gear W, the lever 5 and the slide base 6 are pushed back by the springs 10 and 12, the lever 5 swings to its original position, engages with the stopper 11, and slides. The movable table 6 moves to the original position and engages with the stopper 13. Furthermore, when the position detector 18 detects the protrusion 16 of the lever 5, the NC device reads the peak hold value of the distance measuring device 15, and thereby the runout of the tooth gap of the processed gear W is measured. Regarding the distance measuring device 15 and the position detecting device 17, before or after the gear measuring device 3 is attached, as shown in FIG. 4, the distance measuring device 15 and the position detecting device 17 can be calibrated by the reference gauge 19.
【0015】したがって、まず、加工歯車Wのまわりに
角度間隔を置いて選定した4〜8箇所において、それぞ
れ加工歯車Wの歯溝の振れを測定する。これによって歯
溝の振れが最小値である加工歯車Wの角度位置を推測す
る。さらに、その付近の角度範囲において、各歯溝の振
れを順次測定し、これによって歯溝の振れが最小値であ
る歯溝を探し出し、歯溝の振れが最小値である加工歯車
Wの角度位置を求めることができる。したがって、その
角度位置において、工具Tと加工歯車Wを互いに位置合
わせすることができる。前記従来のように、作業者の目
視および手作業で加工歯車Wの歯溝の振れを測定する必
要はない。Therefore, first, the runout of the tooth space of the processed gear W is measured at each of 4 to 8 locations selected with an angular interval around the processed gear W. From this, the angular position of the machined gear W in which the runout of the tooth space is minimum is estimated. Further, in the angular range in the vicinity thereof, the runout of each tooth groove is sequentially measured, the tooth groove having the minimum runout of the tooth groove is searched for, and the angular position of the processed gear W having the minimum runout of the tooth groove is determined. Can be asked. Therefore, at the angular position, the tool T and the working gear W can be aligned with each other. It is not necessary to measure the runout of the tooth space of the processed gear W visually and manually by the operator as in the conventional case.
【0016】なお、ホブ盤で荒加工した歯車Wについて
は、図5に示すように、荒加工のホブの送り目Pが大き
い場合、加工歯車Wの歯面に大きい凹凸があり、これが
歯溝の振れの測定値に影響する。したがって、Z軸方向
において、歯車測定装置3と加工歯車Wを相対的に移動
させ、その位置を荒加工のホブの送り目Pの半分だけず
らせ、加工歯車Wの歯溝の振れを2回にわたって測定
し、演算によってその測定値の平均値を求めることが好
ましい。With respect to the gear W rough-machined by the hobbing machine, as shown in FIG. 5, when the feed P of the rough-machined hob is large, there are large irregularities on the tooth surface of the machined gear W. Affects runout measurements. Therefore, in the Z-axis direction, the gear measuring device 3 and the machining gear W are moved relative to each other, and their positions are shifted by half the feed line P of the hob for rough machining, and the runout of the tooth groove of the machining gear W is repeated twice. It is preferable to measure and calculate the average value of the measured values.
【0017】歯幅方向の誤差があると考えられる歯車W
については、歯幅方向の両端位置および中央位置で歯溝
の振れを測定し、演算によって歯幅方向の誤差を求める
ことも可能である。Gear W considered to have an error in the tooth width direction
With regard to, it is also possible to measure the runout of the tooth groove at both end positions and the central position in the tooth width direction and obtain the error in the tooth width direction by calculation.
【0018】また、この歯車加工機では、加工歯車Wの
加工後、工具台1に歯車測定装置20が取り付けられ
る。図6に示すように、歯車測定装置20は市販の電気
マイクロメータなどの移動量測定子21を有し、移動量
測定子21はY軸方向の移動量を測定するためのもの
で、球状の先端22を有し、取り付け具23に設けられ
ている。さらに、工具台1の位置決めブロック14によ
って取り付け具23が位置決めされ、その状態で、取り
付け具23が工具台1に取り付けられ、移動量測定子2
1の先端22が加工歯車Wの歯面に接触する。また、図
7に示すように、基準ゲージ24によって移動量測定子
21の先端22の位置が測定され、工具台1に取り付け
られたとき、演算によってX軸方向、Y軸方向およびZ
軸方向の先端22の座標が求められる。Further, in this gear processing machine, the gear measuring device 20 is attached to the tool base 1 after processing the processed gear W. As shown in FIG. 6, the gear measuring device 20 has a moving amount measuring element 21 such as a commercially available electric micrometer, and the moving amount measuring element 21 is for measuring the moving amount in the Y-axis direction and has a spherical shape. It has a tip 22 and is provided on a fixture 23. Further, the mounting tool 23 is positioned by the positioning block 14 of the tool base 1, and in that state, the mounting tool 23 is mounted on the tool base 1, and the movement amount probe 2
The tip 22 of No. 1 contacts the tooth surface of the processed gear W. Further, as shown in FIG. 7, when the position of the tip 22 of the movement amount probe 21 is measured by the reference gauge 24 and is attached to the tool base 1, the X axis direction, the Y axis direction, and the Z axis are calculated by calculation.
The coordinates of the tip 22 in the axial direction are obtained.
【0019】そして、NC歯車加工機のNC装置によっ
て工具台1と歯車台2が数値制御され、歯車測定装置2
0と加工歯車Wが相対的に移動し、加工歯車Wが図6の
反時計方向に回転し、移動量測定子21がX軸方向およ
びY軸方向に移動し、移動量測定子21によってその先
端22の移動量が測定される。さらに、その測定値が電
圧に換算され、ペンレコーダによってこれが記録され、
通常の歯車測定機と同様の方法によって加工歯車Wの歯
形誤差、歯すじ誤差、ピッチ誤差が測定される。なお、
歯形誤差を測定するとき、小さい直径の加工歯車Wで
は、移動量測定子21の先端22を加工歯車Wの基礎円
の接線L1に沿って移動させてもよいが、大きい直径の
加工歯車Wでは、移動量測定子21の先端22を接線L
1から一定角度α傾斜した直線L2に沿って移動させ、
測定値に Cosαを乗算してもよい。移動量測定子21の
先端22を接線L1から一定角度α傾斜した直線L2に
沿って移動させると、加工歯車Wの右歯面および左歯面
を測定するにあたって、移動量測定子21の移動量を大
幅に減少させることができ、好ましい。傾斜角度αとし
て加工歯車Wの圧力角を使用すると、便宜である。Then, the NC base of the NC gear processing machine numerically controls the tool base 1 and the gear base 2, and the gear measuring device 2
0 and the machining gear W relatively move, the machining gear W rotates counterclockwise in FIG. 6, the movement amount probe 21 moves in the X-axis direction and the Y-axis direction, and the movement amount probe 21 The amount of movement of the tip 22 is measured. Furthermore, the measured value is converted into a voltage, which is recorded by the pen recorder,
The tooth profile error, the tooth trace error, and the pitch error of the processed gear W are measured by the same method as that of a normal gear measuring machine. In addition,
When measuring the tooth profile error, the tip 22 of the displacement gauge 21 may be moved along the tangent line L1 of the basic circle of the machining gear W in the machining gear W of small diameter, but in the machining gear W of large diameter. , The tangent line L to the tip 22 of the movement amount probe 21
1 is moved along a straight line L2 inclined by a constant angle α,
The measured value may be multiplied by Cosα. When the tip 22 of the movement amount probe 21 is moved along the straight line L2 inclined from the tangent line L1 by a constant angle α, the movement amount of the movement amount probe 21 when measuring the right and left tooth flanks of the processed gear W Can be significantly reduced, which is preferable. It is convenient to use the pressure angle of the processed gear W as the inclination angle α.
【0020】さらに、加工歯車Wの歯形誤差、歯すじ誤
差、ピッチ誤差の他に、加工歯車Wの加工精度として歯
溝の振れおよび歯厚誤差がある。歯溝の振れおよび歯厚
誤差については、加工歯車Wの右歯面および左歯面でピ
ッチ誤差を測定し、演算によって歯溝の振れおよび歯厚
誤差を求めることもできるが、歯車測定装置20に代え
て歯車測定装置3を使用し、歯車測定装置3によって加
工歯車Wの歯溝の振れおよび歯厚誤差を測定してもよ
い。Further, in addition to the tooth profile error, the tooth trace error, and the pitch error of the machined gear W, the machining accuracy of the machined gear W includes the runout of the tooth space and the tooth thickness error. Regarding the runout of the tooth groove and the tooth thickness error, it is also possible to measure the pitch error on the right tooth surface and the left tooth surface of the machined gear W and calculate the tooth groove runout and the tooth thickness error. Instead of this, the gear measuring device 3 may be used, and the gear measuring device 3 may measure the runout of the tooth groove of the processed gear W and the tooth thickness error.
【0021】したがって、加工歯車Wを歯車台2から取
り外さず、歯車台2に取り付けた状態で加工歯車Wの加
工精度を測定することができる。したがって、加工精度
が低いとき、加工歯車Wの歯面をそのまま歯切り加工ま
たは研削加工することができる。前記従来のように、加
工歯車Wを一旦取り外し、加工精度の測定後、加工歯車
Wを再度取り付ける必要はない。Therefore, the machining accuracy of the machining gear W can be measured in a state where the machining gear W is attached to the gear base 2 without removing the machining gear W from the gear base 2. Therefore, when the machining accuracy is low, the tooth surface of the machined gear W can be directly subjected to gear cutting or grinding. It is not necessary to remove the machining gear W once and measure the machining accuracy and then reattach the machining gear W as in the conventional case.
【0022】さらに、この歯車加工機では、図8に示す
ように、歯車台2に工具測定装置25が取り付けられ
る。図9に示すように、工具測定装置25は歯車測定装
置20と同様の構成のもので、移動量測定子21、球状
の先端22および取り付け具23を有する。そして、歯
車台2の位置決めブロック26によって取り付け具23
が位置決めされ、その状態で、取り付け具23が歯車台
2に取り付けられる。また、工具Tはねじ状工具であ
り、移動量測定子21の先端22は工具Tのねじ面に接
触する。Further, in this gear cutting machine, as shown in FIG. 8, a tool measuring device 25 is attached to the gear stand 2. As shown in FIG. 9, the tool measuring device 25 has the same structure as the gear measuring device 20, and has a movement amount probe 21, a spherical tip 22 and a fitting 23. Then, the mounting block 23 of the gear stand 2 is attached by the positioning block 26.
Is positioned, and the fixture 23 is attached to the gear base 2 in this state. Further, the tool T is a screw-shaped tool, and the tip 22 of the movement amount probe 21 contacts the thread surface of the tool T.
【0023】したがって、NC歯車加工機のNC装置に
よって工具台1と歯車台2を数値制御し、工具Tと工具
測定装置25を相対的に移動させ、工具Tをその軸芯の
まわりを回転させる、移動量測定子21をX軸方向およ
びY軸方向に移動させると、歯車測定装置20と同様の
方法によって工具Tのねじすじ誤差を測定することがで
きる。なお、工具Tと工具測定装置25を相対的に移動
させるにあたって、それをY軸から圧力角αだけ傾斜し
た直線Lに沿って移動させることが好ましい。さらに、
工具Tの両刃面において、それぞれねじすじ誤差を測定
することが好ましい。Therefore, the NC base of the NC gear cutting machine numerically controls the tool base 1 and the gear base 2 to relatively move the tool T and the tool measuring device 25 and rotate the tool T around its axis. By moving the movement amount probe 21 in the X-axis direction and the Y-axis direction, the thread streak error of the tool T can be measured by the same method as the gear measuring device 20. When moving the tool T and the tool measuring device 25 relatively, it is preferable to move them along a straight line L inclined by the pressure angle α from the Y axis. further,
It is preferable to measure the thread streak error on each of the two blade surfaces of the tool T.
【0024】したがって、工具台1に工具Tを取り付け
た状態で、工具測定装置25によって工具Tのねじすじ
精度を測定することができ、その加工精度および取り付
け精度を測定することができる。したがって、工具Tの
加工精度および取り付け精度が低いとき、それを適宜修
正することができ、工具Tの加工精度および取り付け精
度が加工歯車Wの加工精度に影響するおそれは少ない。Therefore, with the tool T mounted on the tool base 1, the thread measuring accuracy of the tool T can be measured by the tool measuring device 25, and the machining accuracy and the mounting accuracy thereof can be measured. Therefore, when the machining accuracy and the mounting accuracy of the tool T are low, it can be appropriately corrected, and the machining accuracy and the mounting accuracy of the tool T are less likely to affect the machining accuracy of the machining gear W.
【0025】[0025]
【発明の効果】以上説明したように、この発明によれ
ば、加工歯車Wの加工前、歯車測定装置3によって加工
歯車Wの歯溝の振れを測定し、歯溝の振れが最小値であ
る加工歯車Wの角度位置を求めることができ、その角度
位置において、工具Tと加工歯車Wを互いに位置合わせ
することができる。前記従来のように、作業者の目視お
よび手作業で加工歯車Wの歯溝の振れを測定する必要は
ない。また、加工歯車Wの加工後、加工歯車Wを歯車台
2から取り外さず、歯車台2に取り付けた状態で、歯車
測定装置20によって加工歯車Wの加工精度を測定する
ことができる。したがって、加工精度が低いとき、加工
歯車Wの歯面をそのまま歯切り加工または研削加工する
ことができる。前記従来のように、加工歯車Wを一旦取
り外し、加工精度の測定後、加工歯車Wを再度取り付け
る必要はない。さらに、工具台1に工具Tを取り付けた
状態で、工具測定装置25によって工具Tのねじすじ精
度を測定することができ、その加工精度および取り付け
精度を測定することができる。したがって、工具Tの加
工精度および取り付け精度が低いとき、それを適宜修正
することができ、工具Tの加工精度および取り付け精度
が加工歯車Wの加工精度に影響するおそれは少なく、所
期の目的を達成することができるものである。As described above, according to the present invention, before the machining of the machining gear W, the gear measuring device 3 measures the runout of the tooth groove of the work gear W, and the runout of the tooth groove is the minimum value. The angular position of the machining gear W can be obtained, and the tool T and the machining gear W can be aligned with each other at the angular position. It is not necessary to measure the runout of the tooth space of the processed gear W visually and manually by the operator as in the conventional case. Further, after the machining gear W is machined, the machining accuracy of the machining gear W can be measured by the gear measuring device 20 in a state where the machining gear W is attached to the gear base 2 without being removed from the gear base 2. Therefore, when the machining accuracy is low, the tooth surface of the machined gear W can be directly subjected to gear cutting or grinding. It is not necessary to remove the machining gear W once and measure the machining accuracy and then reattach the machining gear W as in the conventional case. Further, with the tool T mounted on the tool base 1, the thread measuring accuracy of the tool T can be measured by the tool measuring device 25, and the machining accuracy and the mounting accuracy thereof can be measured. Therefore, when the machining accuracy and the mounting accuracy of the tool T are low, it can be appropriately corrected, and the machining accuracy and the mounting accuracy of the tool T are less likely to affect the machining accuracy of the machining gear W, and the intended purpose is to be improved. Is something that can be achieved.
【図1】この発明の実施例を示す側面図である。FIG. 1 is a side view showing an embodiment of the present invention.
【図2】図1の歯車測定装置の構成を示す断面図であ
る。FIG. 2 is a cross-sectional view showing the configuration of the gear measuring device of FIG.
【図3】図2のボール、レバーおよび摺動台の作用を示
す断面図である。FIG. 3 is a cross-sectional view showing the operation of the ball, lever and slide of FIG.
【図4】図2の距離測定器および位置検出器を校正する
状態を示す断面図である。FIG. 4 is a cross-sectional view showing a state in which the distance measuring device and the position detector of FIG. 2 are calibrated.
【図5】Aは荒加工された歯車の歯面を示す斜視図であ
り、Bはその断面図である。5A is a perspective view showing a tooth surface of a gear that has been rough-processed, and B is a sectional view thereof. FIG.
【図6】図1の歯車測定装置の構成を示す説明図であ
る。FIG. 6 is an explanatory diagram showing a configuration of the gear measuring device of FIG. 1.
【図7】図6の移動量測定子の先端の位置を測定する状
態を示す説明図である。FIG. 7 is an explanatory diagram showing a state in which the position of the tip of the movement amount probe of FIG. 6 is measured.
【図8】他の実施例を示す側面図である。FIG. 8 is a side view showing another embodiment.
【図9】図8の工具測定装置の構成を示す説明図であ
る。9 is an explanatory diagram showing a configuration of the tool measuring device of FIG.
T 工具 W 加工歯車 1 工具台 2 歯車台 3,20 歯車測定装置 25 工具測定装置 T tool W processing gear 1 tool stand 2 gear stand 3,20 gear measuring device 25 tool measuring device
Claims (3)
歯車を取り付け、前記工具によって前記加工歯車の歯面
を歯切り加工または研削加工するNC歯車加工機におい
て、前記加工歯車の加工前、前記工具台に歯車測定装置
を取り付け、前記NC歯車加工機のNC装置によって前
記工具台と前記歯車台を数値制御し、前記歯車測定装置
と前記加工歯車を相対的に移動させ、前記加工歯車をそ
の軸芯のまわりに回転させ、前記歯車測定装置によって
前記加工歯車の歯溝の振れを測定し、前記歯溝の振れが
最小値である前記加工歯車の角度位置を求めることを特
徴とするNC歯車加工機の歯車測定方法。1. An NC gear processing machine in which a tool is attached to a tool stand, a machining gear is attached to a gear stand, and a tooth surface of the machining gear is cut or ground by the tool, before machining the machining gear, A gear measuring device is attached to the tool stand, and the tool stand and the gear stand are numerically controlled by an NC device of the NC gear processing machine, and the gear measuring device and the working gear are moved relatively to each other, and the working gear is It is rotated around its axis, and the runout of the tooth groove of the working gear is measured by the gear measuring device, and the angular position of the working gear having the minimum runout of the tooth groove is obtained. Gear measuring method of gear processing machine.
歯車を取り付け、前記工具によって前記加工歯車の歯面
を歯切り加工または研削加工するNC歯車加工機におい
て、前記加工歯車の加工後、前記工具台に歯車測定装置
を取り付け、前記NC歯車加工機のNC装置によって前
記工具台と前記歯車台を数値制御し、前記歯車測定装置
と前記加工歯車を相対的に移動させ、前記加工歯車をそ
の軸芯のまわりに回転させ、前記歯車測定装置によって
前記加工歯車の加工精度を測定することを特徴とするN
C歯車加工機の歯車測定方法。2. An NC gear processing machine in which a tool is attached to a tool stand, a machining gear is attached to a gear stand, and a tooth surface of the machining gear is cut or ground by the tool, after machining the machining gear, A gear measuring device is attached to the tool stand, and the tool stand and the gear stand are numerically controlled by an NC device of the NC gear processing machine, and the gear measuring device and the working gear are moved relatively to each other, and the working gear is N is characterized in that the machining accuracy of the machined gear is measured by the gear measuring device by rotating it about its axis.
Gear measurement method of C gear processing machine.
歯車を取り付け、前記工具によって前記加工歯車の歯面
を歯切り加工または研削加工するNC歯車加工機におい
て、前記歯車台に工具測定装置を取り付け、前記NC歯
車加工機のNC装置によって前記工具台と前記歯車台を
数値制御し、前記工具と前記工具測定装置を相対的に移
動させ、前記工具をその軸芯のまわりに回転させ、前記
工具測定装置によって前記工具の加工精度および取り付
け精度を測定することを特徴とするNC歯車加工機の工
具測定方法。3. An NC gear cutting machine in which a tool is attached to a tool stand, a working gear is attached to a gear stand, and a tooth surface of the working gear is cut or ground by the tool, and a tool measuring device is mounted on the gear stand. Attached, numerically controlling the tool stand and the gear stand by the NC device of the NC gear processing machine, relatively moving the tool and the tool measuring device, and rotating the tool around its axis, A tool measuring method for an NC gear cutting machine, characterized in that the machining accuracy and the mounting accuracy of the tool are measured by the tool measuring device.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP4238994A JPH0655341A (en) | 1992-08-13 | 1992-08-13 | Gear and tool measuring method in nc gear cutting machine |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP4238994A JPH0655341A (en) | 1992-08-13 | 1992-08-13 | Gear and tool measuring method in nc gear cutting machine |
Publications (1)
Publication Number | Publication Date |
---|---|
JPH0655341A true JPH0655341A (en) | 1994-03-01 |
Family
ID=17038337
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP4238994A Pending JPH0655341A (en) | 1992-08-13 | 1992-08-13 | Gear and tool measuring method in nc gear cutting machine |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH0655341A (en) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2010036332A (en) * | 2008-03-31 | 2010-02-18 | Jtekt Corp | Screw groove detection device, screw groove detection method, and machine tool |
US8091247B2 (en) | 2010-03-29 | 2012-01-10 | Aisin Seiki Kabushiki Kaisha | Gear shape measuring apparatus |
US20140294530A1 (en) * | 2013-03-28 | 2014-10-02 | Liebherr-Verzahntechnik Gmbh | Apparatus and method for chamfering a workpiece |
CN111014834A (en) * | 2018-10-10 | 2020-04-17 | 株式会社捷太格特 | Machine tool |
JP2021506598A (en) * | 2017-12-15 | 2021-02-22 | ライシャウァー アーゲー | Methods and equipment for measuring creative machining tools |
-
1992
- 1992-08-13 JP JP4238994A patent/JPH0655341A/en active Pending
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2010036332A (en) * | 2008-03-31 | 2010-02-18 | Jtekt Corp | Screw groove detection device, screw groove detection method, and machine tool |
US8091247B2 (en) | 2010-03-29 | 2012-01-10 | Aisin Seiki Kabushiki Kaisha | Gear shape measuring apparatus |
US20140294530A1 (en) * | 2013-03-28 | 2014-10-02 | Liebherr-Verzahntechnik Gmbh | Apparatus and method for chamfering a workpiece |
JP2021506598A (en) * | 2017-12-15 | 2021-02-22 | ライシャウァー アーゲー | Methods and equipment for measuring creative machining tools |
CN111014834A (en) * | 2018-10-10 | 2020-04-17 | 株式会社捷太格特 | Machine tool |
US11311953B2 (en) | 2018-10-10 | 2022-04-26 | Jtekt Corporation | Machine tool |
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