JPH03131420A - Tooth surface finishing method for gear - Google Patents

Tooth surface finishing method for gear

Info

Publication number
JPH03131420A
JPH03131420A JP26720889A JP26720889A JPH03131420A JP H03131420 A JPH03131420 A JP H03131420A JP 26720889 A JP26720889 A JP 26720889A JP 26720889 A JP26720889 A JP 26720889A JP H03131420 A JPH03131420 A JP H03131420A
Authority
JP
Japan
Prior art keywords
gear
gears
backlash
meshing
rotation
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.)
Granted
Application number
JP26720889A
Other languages
Japanese (ja)
Other versions
JP2770487B2 (en
Inventor
Masaki Okada
岡田 正貴
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Isuzu Motors Ltd
Original Assignee
Isuzu Motors Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Isuzu Motors Ltd filed Critical Isuzu Motors Ltd
Priority to JP26720889A priority Critical patent/JP2770487B2/en
Publication of JPH03131420A publication Critical patent/JPH03131420A/en
Application granted granted Critical
Publication of JP2770487B2 publication Critical patent/JP2770487B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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  • Gear Processing (AREA)

Abstract

PURPOSE:To obtain inexpensively a durable high precision gear, by meshing gears and rotating them while being fed with an abrasive agent, and applying coating whose thickness is equal to a backlash quantity, after a cleaning process at the time of backlash having been increased by a predetermined quantity. CONSTITUTION:Diamond powder is mixed with lubrication oil, and it is fed to the meshing portion of a gear 1 and a gear 3, and the adaptation rotation of both gears 1, 3 is conducted. At first, there are large sounds, but they become quiet soon, which is an indication of a state in which the best meshing is being conducted. This adaptation rotation is continued further, and when sounds become a little higher, tooth form surfaces are cut excessively as much as thickness D, and circumferential backlash is increased by more than a predetermined quantity, but meshing becomes smooth. The adaptation rotation is stopped in this state, and both gears 1, 3 are cleaned, and coating whose thickness is equal to the thickness D, is uniformly applied to the surfaces of both gears 1, 3. The coating material is selected according to a use condition, and coating is done by means of spattering, chemical vaporization, ion grating or the like.

Description

【発明の詳細な説明】 (産業上の利用分野) 本発明は、歯車の歯面を高精度に仕l−げろ方法に関す
るものである。
DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a method for finishing the tooth surface of a gear with high precision.

(従来の技術) 歯車の仕上げ精度については、JIS等て等級か決めら
れている。JISI級程度になると、精度か厳しくなり
1通常、研磨工程を入れて歯形を高精度に仕上げている
。歯車を高精度に仕上げることにより、歯車自体の高信
頼性、耐久性が向上し、歯車を噛合わせた状態でバック
ラッシュの安定化、低騒音化、機械損失の低減等が図れ
る。
(Prior Art) Regarding the finishing accuracy of gears, grades are determined by JIS and other standards. When it comes to JISI class teeth, precision becomes more demanding.1 Usually, a polishing process is added to finish the tooth profile to a high degree of precision. By finishing the gears with high precision, the reliability and durability of the gears themselves are improved, and when the gears are meshed, it is possible to stabilize backlash, reduce noise, and reduce mechanical loss.

単に歯車の仕上げ精度をLげるだけなら、ホブによる歯
切りでも時間をかければ、1級程度の精度に仕上げるこ
とも可能である。しかし、熱処理して高硬度とした歯車
の場合には、ホブによる切削は不可能となる。浸炭歯車
を仕上げるスカイビーブと称される方法もあるか、仕上
げ精度は1.5〜1.2級程度止りである。
If you simply want to increase the finishing accuracy of the gear, it is possible to finish it to grade 1 accuracy by cutting the gear with a hob and taking the time. However, in the case of gears that have been heat-treated to have high hardness, cutting with a hob becomes impossible. There is also a method called skybeam for finishing carburized gears, and the finishing accuracy is only about 1.5 to 1.2 grade.

浸炭の際に熱変形した歯車を高精度に仕上げるには、グ
ラインダー研磨によっているが、加工に長時間を要し、
加工費が高くなる。
Gears that have been thermally deformed during carburizing can be finished with high precision by grinding, but the process takes a long time and
Processing costs increase.

このような高精度の歯車を使用する場合には、歯車の取
付は軸、軸受、支持ケース等の組立て寸法精度も高精度
としないと、fM東を高精度に製作した意味かなくなっ
てしまう。
When using such high-precision gears, the dimensional precision of the shaft, bearing, support case, etc., must be ensured to ensure high precision, otherwise the high precision manufacturing of the fM East will be meaningless.

このように、支持ケースに組立て歯車を噛合わせた状だ
iで高精度とする方法に、バックラッシュかO近辺とな
るように、バックラッシュを小さく2〜3級の精度で歯
車を製作し、この歯車を実際に組付ける支持ケースに組
立てた状態で回転させ、噛合わせた南中にダイヤモンド
パウダーを入れ、歯車同志で研磨、成形する方法かある
In this way, the method of achieving high precision with the assembly gear i meshed with the support case is to manufacture gears with a precision of grade 2 to 3 with a small backlash so that the backlash is around O. One method is to rotate the gears while assembled in a support case, insert diamond powder into the mating core, and then polish and shape the gears together.

(発明か解決しようどする。2!!題〕前記の方法は、
実際に組付けるケースに組立てた状態て研削か行われる
ので、組立′C誤差が吸収され、また、10〜20分程
度の程度的短蒔間で高精度か得られる利点かある。しか
し、その反面、研削に使用したダイヤモンドパウダーが
歯面に喰込み、入念に洗浄してもダイヤモンドパウダー
を完全に除去することかてきず、残存したダイヤモンl
−バウターで歯車の歯面がV期に損傷してしまう問題か
ある。
(I'm trying to invent or solve it. 2!! Problem) The above method is
Since the grinding is performed while assembled in the case where it is actually assembled, assembly errors are absorbed, and there is also the advantage that high precision can be obtained in a relatively short period of time of about 10 to 20 minutes. However, on the other hand, the diamond powder used for grinding gets bit into the tooth surface, and even with careful cleaning, it is not possible to completely remove the diamond powder, leaving the remaining diamonds.
- There is a problem that the tooth surface of the gear is damaged in the V stage when using a bower.

本発明は前記の課題を解決1ノ、fJi1屯の歯面に残
存したダイヤモンドパウダーの影響をなくして耐久性の
ある高精度歯車か安価に得られる歯車の歯面仕りげ方法
を提供することを目的とするものである。
The present invention solves the above-mentioned problems by providing a method for finishing the tooth surface of a gear, which eliminates the influence of the diamond powder remaining on the tooth surface of fJi1 ton and obtains a durable high-precision gear at a low cost. This is the purpose.

(課題を解決するための1段及び作用)本発明は、バッ
クラッシュがほぼOとなるように加にしたinを相手の
歯車と噛合わせた状態て研磨材を供給しながら回転させ
、該回転時の騒音が低下しバックラッシュか所定量増大
したときに該回転を停止し、洗浄工程を経た歯車の歯面
に前記増大したバックラッシュに相当する厚さのコーテ
ングを施す歯車の画面仕上げ方法である。
(1st step and operation for solving the problem) The present invention involves rotating an in which is added so that the backlash is approximately O and meshing with a mating gear while supplying an abrasive material. A gear screen finishing method in which the rotation is stopped when the noise decreases and the backlash increases by a predetermined amount, and a coating with a thickness corresponding to the increased backlash is applied to the tooth surface of the gear that has undergone a cleaning process. be.

噛合わせた歯車の回転を開始した当初は歯車列が大きな
音を出すが、両歯車同志が馴染んで良く噛合った状態で
音が静かになる。更に馴染回転を歯形表面が研削されて
バックラッシュか所定量増大するまで継続する。
When the meshed gears start rotating, the gear train makes a loud noise, but as the gears become accustomed to each other and mesh well, the noise becomes quieter. Furthermore, the break-in rotation is continued until the tooth profile surface is ground and the backlash increases by a predetermined amount.

馴染回転を停止し、洗浄工程を経た歯車の歯形表面には
、喰込んだ研磨材かところどころに残っている。この歯
車の歯形表面に余分に研削した厚さ分のコーテングを均
一に施すことにより、歯形表面に残存する研磨材がコー
テング材で包み込まれて歯車の噛合い面に出ることがな
く、また1両歯車の1−合い面は、回転時に音が静かに
なった両歯車同志が最高に良く噛合った状態に復元され
るのて、極めて円滑に噛合うこととなる。
After the break-in rotation has been stopped and the gear has gone through the cleaning process, bits of abrasive material remain in some places on the tooth profile surface of the gear. By uniformly coating the tooth profile surface of the gear with the thickness of the extra grinding, the abrasive material remaining on the tooth profile surface is wrapped in the coating material and does not come out on the meshing surface of the gear. The gears' first and second mating surfaces are restored to the best meshing state between the two gears, which have become quieter during rotation, resulting in extremely smooth meshing.

(実施例) 本発明の実施例を図面について説明する。(Example) Embodiments of the present invention will be described with reference to the drawings.

第1図は本発明の仕上げ工程の説明図で、第4図は馴染
回転を示す斜視図である。第4図に示すように、2級程
度の精度に加工し熱処理した歯車lと歯車3をそれぞれ
の軸2.4に取付け、破線て示す実際に組付けるケース
5に軸受6,7で支持して組立てる。
FIG. 1 is an explanatory diagram of the finishing process of the present invention, and FIG. 4 is a perspective view showing the fitting rotation. As shown in Fig. 4, gears 1 and 3, which have been machined and heat-treated to grade 2 accuracy, are attached to their respective shafts 2.4, and are supported by bearings 6 and 7 in the case 5 where they will be actually assembled, as shown by broken lines. Assemble.

歯車lは、第1図の#1に示すように、歯形表面1aの
バックラッシュかほぼOとなるように、正規のバックラ
ッシュで噛合う線を示す一点鎖線【0より少くなるよう
に加工し、熱処理を施したものである。歯車3について
も同様とする。
As shown in #1 in Fig. 1, the gear 1 is machined so that the backlash on the tooth profile surface 1a is approximately 0, and the dashed dotted line indicating the meshing line with the regular backlash is less than 0. , heat treated. The same applies to gear 3.

第4図において、?1N3滑油にダイヤモンドパウダー
8を混ぜたものを歯車lと歯車3の噛合い部に供給し、
両歯車を回転して馴染回転を行う。この際、ケース5の
軸受6,7には、別系統の潤滑油だけの給油を実施する
In Figure 4, ? Supply a mixture of 1N3 lubricating oil and diamond powder 8 to the meshing part of gear 1 and gear 3,
Rotate both gears to perform a familiar rotation. At this time, the bearings 6 and 7 of the case 5 are supplied with only lubricating oil from a separate system.

第2図に示すように、馴染回転を開始した当初は歯車列
が大きなaを出すく第1図の#2#照)が、馴染回転を
続けてt、(20分程度)時点では静かになる。このと
きが、両歯車1.3同志か最高に良く噛合った状態であ
る。更に馴染回転を続けてt2 (10分程度)時点て
は、盲が少し高くなる。この状f島では、第3図に示す
ように、歯形表面か厚さDだけ余分に研削されて円周方
向のバックラッシュが規定量より増大する(第1図の#
3参照)が、両歯車1.3同志の噛合いは円滑である。
As shown in Figure 2, at the beginning of the break-in rotation, the gear train produces a large a (#2# light in Figure 1), but as the break-in rotation continues, at t (approximately 20 minutes), the gear train becomes quiet. Become. At this time, both gears 1.3 are in the best meshed state. At t2 (approximately 10 minutes) after continuing the familiarization rotation, the blindness becomes slightly higher. In this type of island f, as shown in Fig. 3, the tooth profile surface is ground by an extra thickness D, and the backlash in the circumferential direction increases more than the specified amount (# in Fig. 1).
3), but the meshing between both gears 1 and 3 is smooth.

この状態で馴染回転を停止トする。In this state, break-in rotation is stopped.

次に、両歯車1.3を洗浄するが、第5図に示すように
、歯形表面1aに喰込んだダイヤモンドパウダー8を完
全に除去することかできず、ダイヤモンドパウダー8か
ところどころに残っている(第1図の#4参照)。
Next, both gears 1.3 are cleaned, but as shown in Fig. 5, it is not possible to completely remove the diamond powder 8 that has bitten into the tooth profile surface 1a, and the diamond powder 8 remains in some places. (See #4 in Figure 1).

次に、第1図の#5に示すように、両歯車l。Next, as shown in #5 of FIG. 1, both gears l.

3の表面に厚さDのコーテング9を均一に施す。A coating 9 having a thickness of D is uniformly applied to the surface of 3.

コーテングの材料は、T、N、T、B、BN、WC等か
ら歯車の使用条件に応じて選定し、コーテングの方法は
、スパッタリング、化学蒸着(CVD)、イオングレー
ティング等が使用できる。
The coating material is selected from T, N, T, B, BN, WC, etc. depending on the usage conditions of the gear, and the coating method can be sputtering, chemical vapor deposition (CVD), ion grating, etc.

以上のとおり、馴染回転時に使用したダイヤモンドパウ
ダーが、歯車を洗浄した後にも歯形表面に残存するが、
その上に所定の厚さのコーテング層が施されるので、第
6図に示すように、ダイヤモンドパウダーが包み込まれ
て歯車の噛合い面に出ることがなく、また、両歯車の噛
合い面は、馴染回転時に音が静かになった両歯車同志か
最高に良く噛合った状態に復元されるので、極めて円滑
に噛合うこととなる。
As mentioned above, the diamond powder used during familiar rotation remains on the tooth surface even after cleaning the gear.
Since a coating layer of a predetermined thickness is applied on top of the coating layer, as shown in Figure 6, the diamond powder is encapsulated and does not come out on the meshing surfaces of the gears, and the meshing surfaces of both gears are During break-in rotation, the two gears are quieter and are restored to their best meshing state, resulting in extremely smooth meshing.

馴染研磨回転により、仮に各歯車の満すじ等が正規の寸
法から外れても、これと噛合う相手の歯車が対応して変
形して馴染むので円滑な噛合が保証され、バックラッシ
ュの安定化、低騒音化、機械損失の低減等が図れる。
Due to the familiar grinding rotation, even if the complete dimensions of each gear deviate from the standard dimensions, the mating gear that meshes with it will deform accordingly and fit in, ensuring smooth engagement, stabilizing backlash, It can reduce noise and mechanical loss.

なお、研磨材はダイヤモンドパウダーに限らず他の研磨
材を使用することができ、また、馴染研磨回転を行う専
用のケースを使用することもできる。
Note that the abrasive material is not limited to diamond powder, but other abrasive materials can be used, and a special case for performing the familiar polishing rotation can also be used.

(発明の効果) 本発明は、低精度に加工した歯車を簡易な手段で短時間
に仕上げ加工でき、歯車を噛合わせた状態におけるバッ
クラッシュの安定化、低騒音化、機械損失の低減等が図
れ、耐久性のある高精度歯車が安価に得られる効果が有
る。
(Effects of the Invention) The present invention can finish gears machined with low precision in a short time using simple means, and can stabilize backlash, reduce noise, and reduce mechanical loss when the gears are meshed. This has the effect of producing durable, high-precision gears at low cost.

【図面の簡単な説明】[Brief explanation of the drawing]

第1図は本発明の仕上げ工程の説明図、第2図は馴染回
転時における音の変化を示す図、第3図馴染回転による
バックラッシュの変化を示す図、第4図は馴染回転を示
す斜視図、第5図は洗浄終了後の歯形表面を拡大して示
す斜視図、第6図はコーテング後の歯形表面を拡大して
示す斜視図である。 l、3:加工歯車 1a:i形表面 2.4:固定軸  5:ケース 6.7:軸受   8:ダイヤモンドパウダー9:コー
テング層
Figure 1 is an explanatory diagram of the finishing process of the present invention, Figure 2 is a diagram showing changes in sound during running-in rotation, Figure 3 is a diagram showing changes in backlash due to running-in rotation, and Figure 4 is a diagram showing running-in rotation. FIG. 5 is an enlarged perspective view of the tooth profile surface after cleaning, and FIG. 6 is an enlarged perspective view of the tooth profile surface after coating. l, 3: Machining gear 1a: I-shaped surface 2.4: Fixed shaft 5: Case 6.7: Bearing 8: Diamond powder 9: Coating layer

Claims (1)

【特許請求の範囲】[Claims] バックラッシュがほぼ0となるように加工した歯車を相
手の歯車と噛合わせた状態で研磨材を供給しながら回転
させ、該回転時の騒音が低下しバックラッシュが所定量
増大したときに該回転を停止し、洗浄工程を経た歯車の
歯面に前記増大したバックラッシュに相当する厚さのコ
ーテングを施すことを特徴とする歯車の歯面仕上げ方法
A gear machined so that backlash is almost 0 is meshed with a mating gear and rotated while supplying abrasive material, and when the noise during the rotation decreases and the backlash increases by a predetermined amount, the rotation occurs. A method for finishing a tooth surface of a gear, the method comprising: stopping the cleaning process, and coating the tooth surface of the gear that has undergone a cleaning process with a thickness corresponding to the increased backlash.
JP26720889A 1989-10-12 1989-10-12 Gear tooth surface finishing method Expired - Fee Related JP2770487B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP26720889A JP2770487B2 (en) 1989-10-12 1989-10-12 Gear tooth surface finishing method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP26720889A JP2770487B2 (en) 1989-10-12 1989-10-12 Gear tooth surface finishing method

Publications (2)

Publication Number Publication Date
JPH03131420A true JPH03131420A (en) 1991-06-05
JP2770487B2 JP2770487B2 (en) 1998-07-02

Family

ID=17441634

Family Applications (1)

Application Number Title Priority Date Filing Date
JP26720889A Expired - Fee Related JP2770487B2 (en) 1989-10-12 1989-10-12 Gear tooth surface finishing method

Country Status (1)

Country Link
JP (1) JP2770487B2 (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2002048575A2 (en) * 2000-12-14 2002-06-20 Bayerische Motoren Werke Ag Method for achieving a desired flank clearance between teeth
EP1845287A1 (en) * 2006-04-04 2007-10-17 Ford Global Technologies, LLC Adjustable gearwheel system
CN103084810A (en) * 2012-11-13 2013-05-08 合肥市田源精铸有限公司 Method for manufacturing gear for environment-friendly fuel feed pump
CN111438136A (en) * 2020-03-26 2020-07-24 丽水市莲都区华荣君泽机械厂 Bevel gear tooth seam automatic cleaning equipment

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2002048575A2 (en) * 2000-12-14 2002-06-20 Bayerische Motoren Werke Ag Method for achieving a desired flank clearance between teeth
WO2002048575A3 (en) * 2000-12-14 2002-12-27 Wolfgang Kollmann Method for achieving a desired flank clearance between teeth
US6997077B2 (en) 2000-12-14 2006-02-14 Bayerische Motoren Werke Ag Method for obtaining a desired tooth flank backlash
EP1845287A1 (en) * 2006-04-04 2007-10-17 Ford Global Technologies, LLC Adjustable gearwheel system
CN103084810A (en) * 2012-11-13 2013-05-08 合肥市田源精铸有限公司 Method for manufacturing gear for environment-friendly fuel feed pump
CN111438136A (en) * 2020-03-26 2020-07-24 丽水市莲都区华荣君泽机械厂 Bevel gear tooth seam automatic cleaning equipment
CN111438136B (en) * 2020-03-26 2021-12-21 温岭市博恩机械有限公司 Bevel gear tooth seam automatic cleaning equipment

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