JPH01146614A - Surface grinding machine for grinding internal helical gear - Google Patents
Surface grinding machine for grinding internal helical gearInfo
- Publication number
- JPH01146614A JPH01146614A JP29986987A JP29986987A JPH01146614A JP H01146614 A JPH01146614 A JP H01146614A JP 29986987 A JP29986987 A JP 29986987A JP 29986987 A JP29986987 A JP 29986987A JP H01146614 A JPH01146614 A JP H01146614A
- Authority
- JP
- Japan
- Prior art keywords
- helical gear
- internal
- grinding
- internal helical
- center
- 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
- 238000000034 method Methods 0.000 abstract description 3
- 239000004575 stone Substances 0.000 abstract 3
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
Landscapes
- Grinding Of Cylindrical And Plane Surfaces (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は内歯ヘリカルギヤを自動的に研削するに好適な
平面研削盤に関するものである。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a surface grinding machine suitable for automatically grinding an internal helical gear.
ヘリカルギヤの研削は専用加工機により行われ、主に外
歯ヘリカルギヤに限られていた。従って内歯ヘリカルギ
ヤは機械歯切加工のまま使用され、又は嵌合する外歯車
との共ラップ等によって仕上されるのが一般であった。Grinding of helical gears was done using a special processing machine, and was mainly limited to external helical gears. Therefore, internal helical gears are generally used as they are after being machined, or are finished by co-lapping with a mating external gear.
従って、従来技術による内歯ヘリカルギヤの精度は低く
、高精度を要する機構には内歯ヘリカルギヤが使用でき
ない問題点があった。また内歯ヘリカルギヤのピッチ精
度等の不均一により振動。Therefore, the accuracy of the internal helical gear according to the prior art is low, and there is a problem that the internal helical gear cannot be used in a mechanism that requires high precision. Also, vibration occurs due to uneven pitch accuracy of the internal helical gear.
騒音発生の原因となる問題点があった。勿論内歯ヘリカ
ルギヤを研削する専用加工機も技術的に可能であるが、
極めて高価のものとなり、一般に使用しえない問題点が
あった。There was a problem that caused noise. Of course, it is technically possible to use a special processing machine to grind internal helical gears, but
The problem was that it was extremely expensive and could not be used generally.
本発明は以上の問題点を解決するもので、一般の平面研
削盤を基レミした簡単な機械で、内歯ヘリカルギヤを自
動的に、かつ高精度に研削し得る内歯ヘリカルギヤ研削
用平面研削盤を提供することを目的とする。The present invention solves the above problems, and is a surface grinder for grinding internal helical gears that is a simple machine based on a general surface grinder and can grind internal helical gears automatically and with high precision. The purpose is to provide
本発明はこのために、Ｘ、Ｙ方向に移動するテーブル上
に旋回テーブルを載置し、該旋回テーブル上に載置され
る回転台にその中心点を旋回中心に合致せしめて内歯ヘ
リカルギヤを保持し、一方、機械の主軸に内歯ヘリカル
ギヤ内に挿入可能で歯溝形状に合致する外周形状を有す
る内研用砥石を連結すると共に、前記旋回テーブルに係
合する制御装置を設け、該装置により内歯ヘリカルギヤ
の各諸元を基にして、旋回テーブルの旋回角度および内
歯ヘリカルギヤと内研用砥石との係合点を旋回中心を通
りヘリカル角度に沿う移動軌跡線上にくるように動作制
御してなる内歯ヘリカルギヤ研削用平面研削盤を構成す
るものである。For this purpose, the present invention places a rotating table on a table that moves in the X and Y directions, and aligns the center point of the rotary table placed on the rotating table with the center of rotation, thereby driving an internal helical gear. On the other hand, an internal grinding wheel which can be inserted into the internal helical gear and has an outer peripheral shape that matches the tooth groove shape is connected to the main shaft of the machine, and a control device that engages with the rotary table is provided, and the device Based on the specifications of the internal helical gear, the operation is controlled so that the turning angle of the turning table and the engagement point between the internal helical gear and the internal grinding wheel are on the movement trajectory line that passes through the center of rotation and follows the helical angle. This is a surface grinder for grinding internal helical gears.
〔作用〕
内歯ヘリカルギヤを内研用砥石に対し、ヘリカル角度だ
け傾け、その中心を旋回中心に一致せしめて保持し、内
歯ヘリカルギヤと内研用砥石との係合点を前記中心を通
りヘリカル角度に沿う移動軌跡線上に乗るように移動制
御することにより内歯ヘリカルギヤの歯溝を研削するこ
とができる。[Operation] The internal helical gear is tilted by a helical angle with respect to the internal grinding wheel, its center is aligned with the center of rotation, and held, and the engagement point between the internal helical gear and the internal grinding wheel passes through the center and the helical angle is adjusted. By controlling the movement so that it rides on the movement trajectory line along the internal helical gear, the tooth space of the internal helical gear can be ground.
以下、回転台で次の歯溝を割り出して同様のことを繰り
返すことにより内歯ヘリカルギヤの金歯の内研を行うこ
とができる。Thereafter, the gold teeth of the internally toothed helical gear can be internally polished by determining the next tooth groove on the rotary table and repeating the same process.
以下、本発明の実施例を図面に基づき説明する。 Embodiments of the present invention will be described below based on the drawings.
第１図は本実施例の全体構成を示すものである。FIG. 1 shows the overall configuration of this embodiment.
テーブル５は機械の摺動台６およびベツド７上にＸ方向
（図の左右方向）およびＸ方向（図の上下方向）に沿っ
て移動可能に載置される。テーブル５上には旋回テーブ
ル２が載置され、その上には内歯ヘリカルギヤ８を割り
出し回転可能に保持する回転台３が載置される。内歯ヘ
リカルギヤ８はその中心点Ｐ。（第２図）を旋回テーブ
ル２の旋回中心Ｏに一致せしめて回転台３に保持される
。The table 5 is placed on a sliding table 6 and a bed 7 of the machine so as to be movable along the X direction (horizontal direction in the figure) and the X direction (vertical direction in the figure). A rotating table 2 is placed on the table 5, and a rotary table 3 for indexing and rotatably holding the internal helical gear 8 is placed thereon. The internal helical gear 8 has its center point P. (FIG. 2) is aligned with the rotation center O of the rotation table 2 and held on the rotation table 3.
内研用砥石１（以下砥石１という）は砥石回転機構１０
（第３図に示す）により回転可能に支持される。砥石１
は内歯ヘリカルギヤ８内に挿入可能な外径寸法から形成
され、その外周は歯溝９に見合う歯形上に形成されてい
る。The grindstone 1 for internal grinding (hereinafter referred to as the grindstone 1) has a grindstone rotation mechanism 10.
(shown in Figure 3). Whetstone 1
is formed with an outer diameter that can be inserted into the internal helical gear 8, and its outer periphery is formed on a tooth profile that matches the tooth grooves 9.
第３図によく示す如く１機械の主軸台１１は図示しない
不動側のコラムに沿ってＹ方向（第１図の紙面直角方向
）に移動可能に支持され、その主軸１２に固定されるプ
ーリ１３および同じく主軸台１１側に枢支されるプーリ
１４間にはベルト１５が架設され、主軸１２の回転を伝
達する。プーリ１４と同軸上に配設されるプーリ１６お
よび砥石１と同軸上のプーリ１７間にはベルト１８が架
設され、砥石１に回転を伝える。なお砥石１はアームホ
ルダ１９の先端に枢支され、アームホルダ１９は主軸台
１１側に固定される。以上により主軸１２の回転が砥石
１に伝達され、砥石１と内歯ヘリカルギヤ８の歯溝９に
合致させなから内歯ヘリカルギヤ８を移動させることに
より内歯の研削が行われる。As clearly shown in FIG. 3, the headstock 11 of one machine is supported so as to be movable in the Y direction (direction perpendicular to the plane of the paper in FIG. 1) along a non-movable column (not shown), and a pulley 13 fixed to the main shaft 12. A belt 15 is installed between the pulleys 14 which are similarly supported on the headstock 11 side, and transmits the rotation of the main shaft 12. A belt 18 is installed between a pulley 16 disposed coaxially with the pulley 14 and a pulley 17 coaxially disposed with the grindstone 1, and transmits rotation to the grindstone 1. Note that the grindstone 1 is pivotally supported at the tip of an arm holder 19, and the arm holder 19 is fixed to the headstock 11 side. As described above, the rotation of the main shaft 12 is transmitted to the grindstone 1, and the internal teeth are ground by moving the internal helical gear 8 so that the grindstone 1 and the internal helical gear 8 are aligned with the tooth grooves 9 of the internal helical gear 8.
第１図に示す如く、制御装置４は旋回テーブル２、テー
ブル５および主軸台１１と係合し、これ等を制御するよ
うに構成される。As shown in FIG. 1, the control device 4 is configured to engage with and control the rotating table 2, table 5, and headstock 11.
次に、制御装置４による制御動作について説明する。Next, the control operation by the control device 4 will be explained.
制御装置４には内歯ヘリカルギヤ８の各諸元、例えばノ
ルマルモジュール（Ｍｎ）、歯溝数（歯数Ｎ）、ヘリカ
ル角度（θ）２割り出し歯数（Ｓ）等が入力される。こ
れ等の諸元の入力により、制御装置４は旋回テーブル２
をヘリカル角度０だけ旋回する。なおこの場合砥石１は
テーブル５のＸ方向に沿って配置され、その位置は不動
状態に保持される。Each specification of the internal helical gear 8, such as the normal module (Mn), the number of tooth grooves (the number of teeth N), the helical angle (θ), and the number of index teeth (S), are input to the control device 4. By inputting these specifications, the control device 4 controls the rotation table 2.
Rotate by a helical angle of 0. In this case, the grindstone 1 is placed along the X direction of the table 5, and its position is maintained in an immovable state.
、第２図に研削前における内歯ヘリカルギヤ８と砥石１
との位置関係を示す。ここで点Ｐ （Ｘ、 Ｚｌ）は砥
石１の中心点、点Ｐ。（Ｘ、、 Ｚｌｌ）は内歯ヘリカ
ルギヤ８の中心点、点ｐ１（Ｘ、、ｚ□）はテーブル左
行端位置１点Ｐ２ （Ｘ２，２２）はテーブル右行端位
置を示す。, Figure 2 shows the internal helical gear 8 and the grinding wheel 1 before grinding.
Indicates the positional relationship with Here, point P (X, Zl) is the center point of grindstone 1, point P. (X, , Zll) indicates the center point of the internal helical gear 8, point p1 (X, z□) indicates the left row end position of the table 1, and point P2 (X2, 22) indicates the right row end position of the table.
内歯ヘリカルギヤ１の１つの歯溝の研削は、前記位置関
係にある内歯ヘリカルギヤ１と砥石１（詳しくは砥石１
の点Ｐ）との係合点が点ＰｉｔＰｏ、 Ｐ、が乗る線上
に沿って移動することによって行われる。すなわち点Ｐ
０を通りヘリカル角度θに沿う移動軌跡線２０に沿って
前記係合点が移動することにより行われる。この移動が
制御装置４により制御される。前記した如く、砥石１は
不動状態にあるが説明の都合上、砥石１側を移動させた
とすれば、砥石１の点Ｐがｐｌ、ｐ、、ｐ、と移動する
ことにより研削加工が円滑に行われることになる。詳し
く説明すると、テーブル５がＸ。Grinding of one tooth groove of the internal helical gear 1 is performed by grinding the internal helical gear 1 and the grindstone 1 (more specifically, the grindstone 1) in the positional relationship described above.
This is done by moving the engagement point with point P) along the line on which the point PitPo,P rides. That is, point P
This is done by moving the engagement point along a movement trajectory line 20 passing through 0 and along the helical angle θ. This movement is controlled by the control device 4. As mentioned above, the grinding wheel 1 is in a stationary state, but for the sake of explanation, if we move the grinding wheel 1 side, the point P of the grinding wheel 1 moves as pl, p, , p, and the grinding process becomes smooth. It will be done. To explain in detail, Table 5 is X.
からＸに移動し、アプローチ作業を行った後、テーブル
５をＸ２からＸｏに、Ｚ２からＺｌに順次ヘリカル角度
θに沿って移動し１次に、テーブル５を点Ｐ２と点Ｐと
が一致する方向にヘリカル角度θに沿い序々に移動する
ことにより研削が完了する。After moving from X to X and performing approach work, the table 5 is sequentially moved from X2 to Xo and from Z2 to Zl along the helical angle θ. Grinding is completed by gradually moving in the direction along the helical angle θ.
以上の動作はすべて制御装置４により自動制御され、ク
ローズトループ回路を組むことにより、高精度の内歯研
削を行うことができる。All of the above operations are automatically controlled by the control device 4, and by forming a closed loop circuit, highly accurate internal tooth grinding can be performed.
一つの歯溝９の研削が終了したら１回転台３を一歯分だ
け割り出し回転し前記と同様の加工サイクルを行う０本
実施例は普通平面研削盤に砥石回転機構１０に保持され
る砥石１を設けると共に。When the grinding of one tooth space 9 is completed, the rotating table 3 is indexed and rotated by one tooth, and the same machining cycle as described above is performed. In this embodiment, the grinding wheel 1 is normally held in the grinding wheel rotation mechanism 10 of a surface grinding machine. Along with establishing.
制御装置４により砥石ｌと内歯ヘリカルギヤ８との係合
点をコントロールすることにより行われるもので、制御
装置４で前記移動制御を行うことは特に難しいものでな
く、砥石回転機構１０の構造も特に複雑のものでない。This is done by controlling the engagement point between the grindstone l and the internal helical gear 8 using the control device 4. It is not particularly difficult to control the movement using the control device 4, and the structure of the grindstone rotation mechanism 10 is also particularly simple. It's not complicated.
従って比較的、容易に、かつ簡単に実施でき、専用加工
機に較べて、安価に実施することができる。勿論、本実
施例により逆ねじれ角の内歯ヘリカルギヤを研削できる
と共に、外歯ヘリカルギヤも本実施例の応用として簡単
に対応することができる。Therefore, it is relatively easy and simple to carry out, and can be carried out at a lower cost than a dedicated processing machine. Of course, according to this embodiment, an internally toothed helical gear with a reverse helix angle can be ground, and an externally toothed helical gear can also be easily applied as an application of this embodiment.
以上の説明によって明らかな如く、本発明によれば、普
通の平面研削盤に比較的簡単な装置を付設することによ
り、内歯ヘリカルギヤを高精度に。As is clear from the above description, according to the present invention, internal helical gears can be manufactured with high accuracy by attaching a relatively simple device to an ordinary surface grinding machine.
かつ容易に研削し得る効果が上げられる。Moreover, the effect of easy grinding can be improved.
第１図は本発明一実施例の構成図、第２図は実施例の研
削時における砥石と内向ヘリカルギヤとの係合点の軌跡
を示す説明図、第３図は実施例における砥石回転機構の
構造を説明するための拡大平面図である。
１・・・内研用砥石、２・・・旋回テーブル。
３・・・回転台、４・・・制御装置、５・・・テーブル
、６・・・摺動台、７・・・ベツド、８・・・内歯ヘリ
カルギヤ、９・・・歯溝、１０・・・砥石回転機構、１
１・・・主軸台、１２・・・主軸、１３，１４，１６，
１７・・・プーリ、１５゜１８・・・ベルト、１９・・
・アームホルダ、２０・・・移動軌跡線。Fig. 1 is a configuration diagram of an embodiment of the present invention, Fig. 2 is an explanatory diagram showing the trajectory of the engagement point between the grindstone and the inward helical gear during grinding in the embodiment, and Fig. 3 is the structure of the grindstone rotation mechanism in the embodiment. FIG. 2 is an enlarged plan view for explaining. 1... Grindstone for internal grinding, 2... Rotating table. 3... Rotating table, 4... Control device, 5... Table, 6... Sliding table, 7... Bed, 8... Internal tooth helical gear, 9... Tooth groove, 10 ... Grinding wheel rotation mechanism, 1
1... Headstock, 12... Main spindle, 13, 14, 16,
17...Pulley, 15° 18...Belt, 19...
- Arm holder, 20... Movement trajectory line.
Claims (1)
ブルと、該旋回テーブルに載置され、内歯ヘリカルギヤ
の中心点を旋回中心に一致させてこれを割り出し回転可
能に保持する回転台と、機械の主軸に連結して前記テー
ブル上に配設され、前記内歯ヘリカルギヤ内に挿入可能
で、かつ歯溝に見合う断面形状を有する内研用砥石と、
また前記内歯ヘリカルギヤの各諸元を基に前記旋回テー
ブルの旋回制御を行うと共に、更にまた前記旋回中心通
り、ヘリカル角度方向に沿う移動軌跡線上に内歯ヘリカ
ルギヤの歯溝部と前記内研用砥石との係合点が乗るよう
に前記テーブルをＸ、Ｚ方向に移動制御する制御装置と
を併設することを特徴とする内歯ヘリカルギヤ研削用平
面研削盤。A turning table placed on a table that moves in the X and Z directions, and a turning table placed on the turning table and indexing and rotatably holding the internal helical gear by aligning the center point of the internal helical gear with the turning center. , an internal grinding wheel that is connected to the main shaft of the machine and arranged on the table, that is insertable into the internal helical gear, and that has a cross-sectional shape that matches the tooth groove;
In addition, the rotation of the rotary table is controlled based on the specifications of the internal helical gear, and the tooth groove of the internal helical gear and the internal grinding wheel are located along the center of rotation and on the movement trajectory line along the helical angle direction. 1. A surface grinding machine for grinding an internal helical gear, comprising: a control device for controlling the movement of the table in the X and Z directions so that the engagement point with the table is placed on the surface;
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP29986987A JPH01146614A (en) | 1987-11-30 | 1987-11-30 | Surface grinding machine for grinding internal helical gear |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP29986987A JPH01146614A (en) | 1987-11-30 | 1987-11-30 | Surface grinding machine for grinding internal helical gear |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH01146614A true JPH01146614A (en) | 1989-06-08 |
Family
ID=17877940
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP29986987A Pending JPH01146614A (en) | 1987-11-30 | 1987-11-30 | Surface grinding machine for grinding internal helical gear |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01146614A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5565876A (en) * | 1990-11-21 | 1996-10-15 | Nippon Sheet Glass Co., Ltd. | Window glass antenna |
-
1987
- 1987-11-30 JP JP29986987A patent/JPH01146614A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5565876A (en) * | 1990-11-21 | 1996-10-15 | Nippon Sheet Glass Co., Ltd. | Window glass antenna |
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