JPH0618742Y2 - Chamfering tool for helical gear - Google Patents
Chamfering tool for helical gearInfo
- Publication number
- JPH0618742Y2 JPH0618742Y2 JP1989053566U JP5356689U JPH0618742Y2 JP H0618742 Y2 JPH0618742 Y2 JP H0618742Y2 JP 1989053566 U JP1989053566 U JP 1989053566U JP 5356689 U JP5356689 U JP 5356689U JP H0618742 Y2 JPH0618742 Y2 JP H0618742Y2
- Authority
- JP
- Japan
- Prior art keywords
- cutter
- cutters
- inner diameter
- gear
- main body
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 230000002093 peripheral effect Effects 0.000 claims description 6
- 230000000149 penetrating effect Effects 0.000 claims 1
- 230000010363 phase shift Effects 0.000 description 17
- 238000000034 method Methods 0.000 description 4
- 125000006850 spacer group Chemical group 0.000 description 4
- 230000001154 acute effect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000005498 polishing Methods 0.000 description 1
Landscapes
- Gear Processing (AREA)
Description
本考案はヘリカルギアの歯面側面部の面取り工具に関す
る。The present invention relates to a chamfering tool for a tooth flank of a helical gear.
一般にヘリカルギアの歯切り加工を行った場合には、歯
切りされた各歯の鋭角側両端部に『バリ』が発生するた
め、面取り工具による面取り加工によってこの『バリ』
取りが行われている。この面取り加工は、第３図に示す
ように、ヘリカルギアの各歯203の鋭角側両コーナ部20
4,205を挟むようにして各歯203に同時に噛合すべく周方
向に回転角位相がずれている（図中Ａで示す）とともに
周幅方向に分離して（図中Ｂで示す）対をなすカッタ歯
201,202を備えた歯車状の工具を用いて面取り加工が行
われる。この面取り加工が数値制御により行われる場合
には、カッタとワークの噛み合わせが自動で行われる
が、その噛み合わせの際にスムーズに且つワークに傷付
けずに行うためにカッタの位置決めが必要となるのであ
り、そのための基準がキー溝であり、このキー溝に対し
て左右カッタの位相ずれ中心の位置が調整される。 第４図から第７図は、従来のヘリカルギア用面取り工具
の各例を示す図である。 第４図に示す第１従来例の面取り工具は、左右両端の歯
車状のカッタ11,11の間に、両カッタと同一径の穴19を
有するスペーサ12が挟持され、ボルト16によって３部材
11,11,12が締め付け固定されている。一方のカッタ11と
スペーサ12にはボルト16の挿通穴18が設けられており、
他方のカッタ11にはボルト16に螺合する雌螺子17が設け
られている。したがってこの面取り工具では、両カッタ
11,11とスペーサ12との三者間の相対的位置関係がボル
ト16の締め付けによって一回で設定されなければなら
ず、その調整は極めて困難である。 第５図及び第６図に示す第２従来例の工具は、ボス付き
の本体側カッタ701にアジャストカッタ702を嵌め込むタ
イプの面取り工具であるが、本体側カッタ701のボス部
にキー溝704が形成されているため、本体側カッタ701の
切刃とキー溝中心との位相は歯切り加工及びキー溝加工
の際に決定され、その後の任意の調整を行うことができ
ない。そのため、位相合わせが必要な場合には歯切り及
びキー溝の加工時に行わねばならず、極めて煩雑な加工
を強いられることになる。しかも、熱処理工程から研磨
工程にかけて生じる『振れ』のために位相合わせの十分
な精度が得られない。 第７図に示す第３従来例の工具は、キー溝605の形成さ
れた本体スペーサ603の両側にカッタ601,602をボルト60
4にて固定するタイプの面取り工具である。キー溝605と
カッタ601,602とは互いに独立して調整可能ではある
が、左右のカッタ601,602どうしの位相ずれと左右カッ
タ601,602及びキー溝605との位相ずれは同時に調整され
なければならならず、そのため調整操作は極めて困難な
作業となり、ユーザでの調整では十分な精度が得られな
い。しかしまたメーカで調整するには、ユーザでの加工
機と同様の加工機を有していなければならず、専用機と
して生産されている多種多様の加工機に対応するのは不
可能である。 本考案は、上述のような従来技術における課題を有効に
解決すべく創案されたものである。したがって本考案の
目的は、左右のカッタどうしの位相ずれと左右カッタお
よびキー溝との位相ずれをそれぞれ別に調整でき、且つ
いずれか一方の調整を終了して他方の調整を行う際に、
調整終了した方の位相ずれを維持したまま後者の調整が
行える、そのようなヘリカルギア用面取り工具を提供す
ることにある。In general, when gear cutting of a helical gear is performed, "burrs" are generated at both ends on the acute angle side of each tooth that has been cut, so this "burr" is generated by chamfering with a chamfering tool.
It is being taken. As shown in FIG. 3, this chamfering process is performed on both corners 20 on the acute angle side of each tooth 203 of the helical gear.
The rotation angle phase is shifted in the circumferential direction (shown by A in the figure) so as to be meshed with each tooth 203 so as to sandwich 4,205, and the pair of cutter teeth are separated in the circumferential width direction (shown by B in the figure).
Chamfering is performed using a gear-shaped tool provided with 201 and 202. When this chamfering process is performed by numerical control, the cutter and the work are automatically engaged, but the cutter must be positioned in order to perform the engagement smoothly and without damaging the work. The reference for that is the key groove, and the position of the center of phase shift of the left and right cutters is adjusted with respect to this key groove. 4 to 7 are views showing examples of conventional chamfering tools for helical gears. In the chamfering tool of the first conventional example shown in FIG. 4, a spacer 12 having a hole 19 having the same diameter as both cutters is sandwiched between the left and right gear-shaped cutters 11, 11 and three members are provided by bolts 16.
11,11,12 are tightened and fixed. The one cutter 11 and the spacer 12 are provided with insertion holes 18 for the bolts 16,
The other cutter 11 is provided with a female screw 17 that is screwed into the bolt 16. Therefore, with this chamfering tool, both cutters
The relative positional relationship between the three members 11, 11 and the spacer 12 must be set at once by tightening the bolt 16, and the adjustment thereof is extremely difficult. The tool of the second conventional example shown in FIG. 5 and FIG. 6 is a chamfering tool of the type in which the adjust cutter 702 is fitted into the body side cutter 701 with a boss, but the key groove 704 is formed in the boss portion of the body side cutter 701. Therefore, the phase between the cutting edge of the main body side cutter 701 and the center of the key groove is determined at the time of gear cutting and key groove processing, and any subsequent adjustment cannot be performed. Therefore, when phase matching is required, it must be performed during gear cutting and key groove processing, which requires extremely complicated processing. Moreover, due to "runout" that occurs from the heat treatment step to the polishing step, sufficient phase alignment accuracy cannot be obtained. The tool of the third conventional example shown in FIG. 7 has cutters 601 and 602 on both sides of a body spacer 603 in which a key groove 605 is formed.
It is a type of chamfering tool that is fixed at 4. The key groove 605 and the cutters 601 and 602 can be adjusted independently of each other, but the phase shift between the left and right cutters 601 and 602 and the phase shift between the left and right cutters 601 and 602 and the key groove 605 must be adjusted at the same time. The operation is extremely difficult work, and sufficient accuracy cannot be obtained by user adjustment. However, in order to make adjustments by the manufacturer, it is necessary to have a processing machine similar to the one used by the user, and it is impossible to support a wide variety of processing machines produced as dedicated machines. The present invention was devised to effectively solve the above-mentioned problems in the prior art. Therefore, an object of the present invention is to separately adjust the phase shift between the left and right cutters and the phase shift between the left and right cutters and the key groove, and when finishing one of the adjustments and performing the other adjustment,
It is an object of the present invention to provide such a chamfering tool for a helical gear, which can perform the latter adjustment while maintaining the phase shift of the end of the adjustment.
本考案に係るヘリカルギア用面取り工具は、上述のよう
な技術的課題を解決し、その目的を達成するために以下
のような構成を備えている。 即ち、第１の内径寸法を有する歯車状の第１カッタと、
上記第１カッタと同じ歯数及びモジュールを有し、且つ
上記第１の内径寸法よりも小さい第２の内径寸法を有す
ると共に該第１カッタと互いに隣接して組み付けられる
歯車状の第２カッタと、上記両カッタの各内径寸法に実
質的に等しい段差外径を有して該両カッタが嵌合して組
み付けられ、且つ内周面にキー溝を有する本体と、上記
両カッタのいずれか一方から延出して他方を貫通し、該
両カッタどうしの相対的周方向位置の可変調整を許容し
て両者を固定する第１固定手段と、上記第２カッタと上
記本体とのいずれか一方から、上記第１固定手段と同一
方向に延出して他方を貫通し、互いの相対的周方向位置
の可変調整を許容して両者を固定する第２固定手段とを
備えている。A chamfering tool for a helical gear according to the present invention has the following structure in order to solve the above-mentioned technical problems and achieve the object. That is, a gear-shaped first cutter having a first inner diameter dimension,
A gear-shaped second cutter which has the same number of teeth and modules as the first cutter, has a second inner diameter smaller than the first inner diameter, and is assembled adjacent to the first cutter. One of the two cutters, which has a step outer diameter substantially equal to each inner diameter of the both cutters, is fitted and assembled with the both cutters, and has a key groove on an inner peripheral surface thereof; From one of the second cutter and the main body, which extends from the first cutter to extend through the other, and allows the relative adjustment of the relative circumferential positions of the two cutters to fix them. The second fixing means extends in the same direction as the first fixing means and penetrates the other, and allows the relative adjustment of the relative circumferential positions to fix the both.
本考案に係るヘリカルギア用面取り工具では、大きい第
１内径寸法を有する第１カッタと、小さい第２内径寸法
を有する第２カッタとは、互いに隣接して組み付けられ
ることで、その内径部に段差を形成する。そして、本体
の段差外径がこの内径段差と嵌合関係をなす。第１固定
手段は、第１カッタと第２カッタとが面接触している部
分で両者を締め付ける等して固定するが、この固定が解
除された状態では、両者は相対的周方向位置の調整が可
能である。また、第２固定手段は、上述の段差部分にお
ける本体と第２カッタとが面接触している部分で、第１
固定手段と同様に両者を締め付ける等して固定するが、
その固定が解除された状態では、両者は相対的周方向位
置の調整が可能である。したがって、両カッタ間の位相
ずれが第１固定手段によって調整固定され、その調整固
定された状態のままで本体と第２カッタとの間の相対的
周方向位置が調整される。本体にはキー溝が形成されて
いるので、両カッタの位相ずれ状態を崩すことなくその
位相ずれ中心と本体のキー溝中心との調整ができる。 また、第１固定手段と第２固定手段とは、面取り工具の
軸方向に関してそれぞれの延びる方向が一致しているの
で、その位置調整作業に伴う工具の組み立て作業や各固
定手段の締め付け作業が、工具の片方の同一側面方向か
らの操作で行える。In the chamfering tool for a helical gear according to the present invention, the first cutter having a large first inner diameter dimension and the second cutter having a small second inner diameter dimension are assembled adjacent to each other to form a step on the inner diameter portion. To form. The step outer diameter of the main body has a fitting relationship with the inner diameter step. The first fixing means fixes the first cutter and the second cutter by, for example, tightening them at a portion where the first cutter and the second cutter are in surface contact with each other. In the state where the fixing is released, the first cutter and the second cutter adjust the relative circumferential position. Is possible. The second fixing means is a portion of the above-mentioned step portion where the main body and the second cutter are in surface contact with each other.
Like the fixing means, both are fixed by tightening,
In the state where the fixation is released, the both can adjust the relative circumferential position. Therefore, the phase shift between both cutters is adjusted and fixed by the first fixing means, and the relative circumferential position between the main body and the second cutter is adjusted in the adjusted and fixed state. Since the key groove is formed in the main body, the phase shift center and the key groove center of the main body can be adjusted without breaking the phase shift state of both cutters. Further, since the first fixing means and the second fixing means have the same extending direction with respect to the axial direction of the chamfering tool, the tool assembling work and the tightening work of the respective fixing means accompanying the position adjusting work are This can be done by operating from one side of the tool.
以下に本考案の好適な一実施例について、第１図及び第
２図を参照して説明する。本実施例では、それぞれ内径
寸法が異なる環状の歯車状に形成されて互いに対をなす
第１カッタ２及び第２カッタ３とが備えられている。第
１カッタ2及び第２カッタ３は、第１カッタ２の方が第
２カッタよりもその内径寸法が大きくされており、外径
寸法や歯数並びに歯形状等その他の歯車としての諸元は
互いに同一である。尚、本考案の面取り工具は、１対の
カッタにて被加工歯車を挟み込み、各歯の鋭角側コーナ
部に面取りを施すものであるが、この場合において１対
のカッタの双方が全く同一の諸元であるとは限らない。
例えば、第８図に示すように、被加工歯車の歯の片側で
径が大きくなるように切れ上がりを生じているような場
合には、第１カッタと第２カッタとで外径が異なること
もあり得るし、第９図のように、被加工歯車の歯の片側
がテーパとなっている場合には双方の圧力角が異なるこ
とになる。したがって、両カッタは歯数とモジュールさ
え同一であればピッチが等しくなるので、１対のカッタ
の相対的な関係は維持されてカッタとして成立し得るも
のである。 本実施例においては、各カッタ2,3の環状の基部72,3は
歯部82,3の厚さよりも厚くされており、両カッタ2,3を
重ね合わせると両者の歯部82,3は厚さ方向に隔てられ
る。両カッタ2,3は、その基部72,3に挿通される第１ボ
ルト４の締め付けによって固定され、逆にこれを緩める
ことによって両者の位相ずれを調整できる。 また、第１カッタ２及び第２カッタ３の以外に、組み付
けられたこれらの内周部にそれぞれ嵌合するようにその
外周側に異径の段差部をもった本体１が備えられてい
る。この本体１には、機械への取り付け用中心孔９が形
成されており、その内周面にはキー溝６が形成されてい
る。本体１と内径寸法が小さい方の第２カッタ３とは、
第２カッタ３の基部73の内周側と本体１の異径段差部の
大径側とに挿通される第２ボルト５によって締め付け固
定され、逆にこれを緩めることによって両者の位相ずれ
を調整できる。先に両カッタ2,3の位相ずれを第１ボル
ト４で固定した状態としておき、その後これらを本体１
に組み付けて第２ボルト５で締め付け固定することによ
って、両カッタ2,3の位相ずれの調整とこの位相ずれの
中心とキー溝中心との位置調整が互いの調整状態に干渉
せずそれぞれ独自に調整でき、その調整操作が簡略化さ
れる。 なお、調整手順としては、先に第２ボルト５で第２カッ
タ３と本体１とを固定してもよいのは勿論である。A preferred embodiment of the present invention will be described below with reference to FIGS. 1 and 2. In this embodiment, there are provided a first cutter 2 and a second cutter 3 which are formed in the shape of an annular gear having different inner diameters and which form a pair. Regarding the first cutter 2 and the second cutter 3, the inner diameter dimension of the first cutter 2 is larger than that of the second cutter, and the outer diameter dimension, the number of teeth, the tooth shape, and other specifications of the gear are They are the same as each other. The chamfering tool of the present invention sandwiches the gear to be machined with a pair of cutters and chamfers the sharp corners of each tooth. In this case, both of the pair of cutters are exactly the same. It is not always the specifications.
For example, as shown in FIG. 8, in the case where the tooth of the gear to be machined has a large diameter on one side, the first cutter and the second cutter have different outer diameters. However, as shown in FIG. 9, when one side of the teeth of the gear to be processed is tapered, the pressure angles of both are different. Therefore, both cutters have the same pitch as long as the number of teeth and the module are the same, so that the relative relationship between the pair of cutters is maintained and the cutters can be realized. In this embodiment, the base 7 2,3 annular each cutter 2 and 3 is larger than the thickness of the tooth portion 8 2,3, when superimposing the two cutters 2 and 3 both teeth 8 2 , 3 are separated in the thickness direction. Both cutters 2 and 3 is fixed by tightening the first bolt 4 to be inserted into its base 7 2,3, can adjust the phase shift of the two by loosening it to reverse. In addition to the first cutter 2 and the second cutter 3, there is provided a main body 1 having stepped portions with different diameters on the outer peripheral side thereof so as to be fitted to the respective inner peripheral portions assembled. A central hole 9 for attachment to a machine is formed in the main body 1, and a key groove 6 is formed on the inner peripheral surface thereof. The main body 1 and the second cutter 3 having the smaller inner diameter are
It is fastened by a second bolt 5 to be inserted into the large diameter side of the different-diameter step difference portion of the inner peripheral side and the main body 1 of the base portion 7 3 of the second cutter 3, both the phase shift by loosening it to reverse Can be adjusted. First, the phase shift of both cutters 2 and 3 is fixed with the first bolt 4, and then these are fixed to the main body 1
By assembling it to and fixing it with the second bolt 5, the adjustment of the phase shift of both cutters 2 and 3 and the position adjustment of the center of this phase shift and the center of the key groove do not interfere with each other's adjustment state, and each of them is independent. Adjustment is possible and the adjustment operation is simplified. As an adjustment procedure, it goes without saying that the second cutter 3 and the main body 1 may be first fixed with the second bolt 5.
以上の説明より明らかなように、本考案によれば次のご
とき優れた効果が発揮される。 即ち、左右のカッタどうしの位相ずれと左右カッタおよ
びキー溝との位相ずれをそれぞれ別に調整できるので、
いずれか一方の調整を終了して他方の調整を行う際に、
調整終了した方の位相ずれを維持したまま後者の調整が
行える。 また、上記二つの位置調整を行う面取り工具としては部
品点数が少ないので、生産性に有利であり、さらに工具
の組み立て性においては、第１及び第２の固定手段の締
め付け操作を同一方向から行えるという点も加わって、
簡単且つ優れている。As is apparent from the above description, the present invention has the following excellent effects. That is, since the phase shift between the left and right cutters and the phase shift between the left and right cutters and the key groove can be adjusted separately,
When finishing one of the adjustments and making the other adjustment,
The latter adjustment can be performed while maintaining the phase shift of the one after the adjustment. Further, since the chamfering tool for adjusting the two positions has a small number of parts, it is advantageous in productivity, and in the assemblability of the tool, the tightening operation of the first and second fixing means can be performed from the same direction. In addition,
Easy and good.
第１図は本考案に係るヘリカルギア用面取り工具の一実
施例を示す縦断面図、第２図は本実施例の正面図、第３
図はヘリカルギアの歯側面取り加工の状況を説明する
図、第４図は第１従来例のヘリカルギア用面取り工具を
示す縦断面図、第５図は第２従来例のヘリカルギア用面
取り工具を示す縦断面図、第６図は第２従来例の正面
図、第７図は第３従来例のヘリカルギア用面取り工具を
示す縦断面図、第８図及び第９図はそれぞれ本考案に係
るヘリカルギア用面取り工具の変形実施例として、各１
対のカッタにおける歯形状を説明する図である。 １……本体、２……第１カッタ、３……第２カッタ、４
……第１固定手段としての第１ボルト、５……第２固定
手段としての第２ボルト、６……キー溝FIG. 1 is a longitudinal sectional view showing an embodiment of a chamfering tool for a helical gear according to the present invention, FIG. 2 is a front view of this embodiment, and FIG.
FIG. 4 is a view for explaining the condition of the tooth side chamfering process of a helical gear, FIG. 4 is a vertical sectional view showing a chamfering tool for a helical gear of the first conventional example, and FIG. FIG. 6 is a front view of a second conventional example, FIG. 7 is a vertical sectional view of a chamfering tool for a helical gear of a third conventional example, and FIGS. 8 and 9 are the present invention respectively. As a modified example of such a chamfering tool for helical gears, one
It is a figure explaining the tooth shape in a pair of cutters. 1 ... Main body, 2 ... First cutter, 3 ... Second cutter, 4
...... First bolt as first fixing means, 5 ...... Second bolt as second fixing means, 6 ...... Key groove
Claims (1)
タ(2)と、 上記第１カッタ(2)と同じ歯数及びモジュールを有し、
且つ上記第１の内径寸法よりも小さい第２の内径寸法を
有すると共に該第１カッタ(2)と互いに隣接して組み付
けられる歯車状の第２カッタ(3)と、 上記両カッタ(2,3)の各内径寸法に実質的に等しい段差
外径を有して該両カッタ(2,3)が嵌合して組み付けら
れ、且つ内周面にキー溝(6)を有する本体(1)と、 上記両カッタ(2,3)のいずれか一方から延出して他方を
貫通し、該両カッタ(2,3)どうしの相対的周方向位置の
可変調整を許容して両者を固定する第１固定手段(4)
と、 上記第２カッタ(3)と上記本体(1)とのいずれか一方か
ら、上記第１固定手段(4)と同一方向に延出して他方を
貫通し、互いの相対的周方向位置の可変調整を許容して
両者を固定する第２固定手段(5)とを備えたことを特徴
とするヘリカルギア用面取り工具。1. A gear-shaped first cutter (2) having a first inner diameter dimension, the same number of teeth and modules as the first cutter (2),
A second gear-shaped cutter (3) having a second inner diameter smaller than the first inner diameter and assembled adjacent to the first cutter (2), and the both cutters (2, 3) ) Of the main body (1) having a step outer diameter substantially equal to each inner diameter dimension of the cutters (2, 3) fitted and assembled, and having a key groove (6) on the inner peripheral surface thereof. A first fixing device that extends from one of the cutters (2, 3) and penetrates the other and permits the variable adjustment of the relative circumferential position of the cutters (2, 3) to fix them Fastening means (4)
And extending from one of the second cutter (3) and the main body (1) in the same direction as the first fixing means (4) and penetrating the other, and the relative circumferential position of each other. A chamfering tool for a helical gear, comprising: a second fixing means (5) which allows variable adjustment and fixes the both.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1989053566U JPH0618742Y2 (en) | 1989-05-10 | 1989-05-10 | Chamfering tool for helical gear |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1989053566U JPH0618742Y2 (en) | 1989-05-10 | 1989-05-10 | Chamfering tool for helical gear |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH02145925U JPH02145925U (en) | 1990-12-11 |
| JPH0618742Y2 true JPH0618742Y2 (en) | 1994-05-18 |
Family
ID=31574863
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1989053566U Expired - Lifetime JPH0618742Y2 (en) | 1989-05-10 | 1989-05-10 | Chamfering tool for helical gear |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0618742Y2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116713541B (en) * | 2023-06-14 | 2026-04-10 | 中国航发哈尔滨东安发动机有限公司 | A double gear machining device and method with high angular accuracy requirements |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5911409A (en) * | 1982-07-13 | 1984-01-21 | Kubota Ltd | Unmanned traveling truck |
| JPH0128980Y2 (en) * | 1985-04-25 | 1989-09-04 |
-
1989
- 1989-05-10 JP JP1989053566U patent/JPH0618742Y2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH02145925U (en) | 1990-12-11 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EXPY | Cancellation because of completion of term |