JPS5810447A - Cam grinding machine - Google Patents
Cam grinding machineInfo
- Publication number
- JPS5810447A JPS5810447A JP10710781A JP10710781A JPS5810447A JP S5810447 A JPS5810447 A JP S5810447A JP 10710781 A JP10710781 A JP 10710781A JP 10710781 A JP10710781 A JP 10710781A JP S5810447 A JPS5810447 A JP S5810447A
- Authority
- JP
- Japan
- Prior art keywords
- workpiece
- stylus
- cradle
- cylindrical member
- forth
- 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
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B19/00—Single-purpose machines or devices for particular grinding operations not covered by any other main group
- B24B19/08—Single-purpose machines or devices for particular grinding operations not covered by any other main group for grinding non-circular cross-sections, e.g. shafts of elliptical or polygonal cross-section
- B24B19/12—Single-purpose machines or devices for particular grinding operations not covered by any other main group for grinding non-circular cross-sections, e.g. shafts of elliptical or polygonal cross-section for grinding cams or camshafts
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Grinding And Polishing Of Tertiary Curved Surfaces And Surfaces With Complex Shapes (AREA)
Abstract
Description
【発明の詳細な説明】
本発明は主としてエンジンの動弁カム軸の加工に用いる
カム研削盤に関する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a cam grinder mainly used for machining valve drive camshafts of engines.
従来この種装置として、例えば第１図９示のようにクレ
ードルａ上に原動機で駆動されて回転するワークｂと、
その前方にこれに対向する回転砥石０とを備える式のも
のは知られるが、この場合該ワークｂに所定のカムプロ
フィルを与えるぺ〈骸クレードル１は適宜に前後に傾動
されるを要し、その手段は仝図示のように該ワークｂの
軸上にマスタカムｄとその前方にタッチカム・とを備え
、両カムｄ＠をばねｆで互に圧接させる式を一般とした
。もので、か＼るものでは研削時における該ワークｂの
押圧力は該ばねｆのみによるため重研削その他によれｄ
１該ワークｂに逃げを生じ易μ不都合を伴う。従来か−
る不都合を無くすべく、該ワークｂｆ定位置で単に眠転
させ、該砥石Ｏ＠を数値制御により前後動さ豐る式のも
のは提案されたが、か−るものでは該砥石６側が比較的
大重量であるため応励時間に遅れがあり生産性を損い勝
ちである不都合を伴う。Conventionally, as shown in FIG. 9, a workpiece b is placed on a cradle a and is rotated by a motor, as shown in FIG.
A type is known that has a rotating grindstone 0 facing it in front, but in this case, in order to give the workpiece b a predetermined cam profile, the skeleton cradle 1 must be tilted back and forth as appropriate. As shown in the figure, this means generally includes a master cam d on the shaft of the workpiece b and a touch cam in front of it, and presses both cams d against each other with a spring f. In some cases, the pressing force on the workpiece b during grinding is due only to the spring f, so heavy grinding or other
1. The work b is prone to escape and is accompanied by inconveniences. Conventional?
In order to eliminate this inconvenience, a method has been proposed in which the workpiece bf is simply placed in a fixed position and the whetstone O@ is moved back and forth by numerical control. Due to the large weight, there is a delay in the application time, which is disadvantageous in that it impairs productivity.
本発明はか−る不都合のない装置を得ることをその目的
としたもので、クレードル上に原動機で駆動されて回転
するワークと、その前方にこれに対向する回転砥石とを
備える式のものにおいて、該クレードル上に骸ワークの
回転軸上の円筒部材と、その背側にこれと係合させて数
値制御により前後動するスタイラスとを備えて該クレー
ドルに該スタイラスに応動する前後動を与えるようにし
て成る。The object of the present invention is to obtain an apparatus free from such inconveniences, which includes a workpiece that is driven by a motor and rotates on a cradle, and a rotating grindstone facing the workpiece in front of the workpiece. A cylindrical member on the rotating shaft of the skeleton work is provided on the cradle, and a stylus that is engaged with the cylindrical member on the back side and moves back and forth by numerical control is provided on the cradle, so that the cradle is provided with a back and forth movement in response to the stylus. It consists of
本発明の実施例を別紙図面に付説明する。Embodiments of the present invention will be described with reference to the attached drawings.
第２図及び第３図はその１例を示すもので（１）はクレ
ードルを示し、該クレードル（１１は根部の軸（２）を
軸として前後に傾動自在とし、その上面にワーク（３）
ｔ−軸（４）で回転自在に軸支して図示しない原動機に
より回転自在とし、その前方にこれに対向させて砥石台
（５）上の回転砥石（６）ヲ備える。Figures 2 and 3 show one example of this. (1) shows a cradle, the cradle (11 is tiltable back and forth around the axis (2) of the root part, and a workpiece (3) is placed on the top surface of the cradle (11).
It is rotatably supported by a t-axis (4) and rotated by a prime mover (not shown), and a rotary grindstone (6) on a grindstone head (5) is provided in front of and opposite to this.
以上は従来のものと特に異らないが、本発明によれば前
記した軸（４）上に円筒部材（７）と、その背−−−−
−−−−
側にこれに係合させて数値制御により前後動するスタイ
ラス（８）とを備え、かくて該スタイラス（８）の前後
動によれば該円筒部材（７）と該軸（４）とを介して該
クレードル（１）Ｋこれに応じた前後の傾動が与えられ
るようにした。これを換言すれば該ワーク（３）Ｋこれ
に応じた前後動を生じてこれに所定のカムプロフィルが
得られるようにした。Although the above is not particularly different from the conventional one, according to the present invention, a cylindrical member (7) is mounted on the shaft (4), and its back
---- A stylus (8) is provided on the side that is engaged with the stylus (8) and is moved back and forth by numerical control, so that the cylindrical member (7) and the shaft (4) are moved back and forth by the stylus (8). ) so that the cradle (1)K can be tilted back and forth accordingly. In other words, the workpiece (3) K is moved back and forth accordingly, so that a predetermined cam profile can be obtained for the workpiece (3).
尚該スタイラス（８）はコンピュータその他の数値制御
信号源（９）の出力信号により制御モータαＱｔ−介し
て送り駆動されて数値制御される型式とする。The stylus (8) is of a type that is numerically controlled by being fed and driven via a control motor αQt- by an output signal from a computer or other numerical control signal source (9).
尚円筒部材（７）とスタイラス（８）とは互に対向して
はねａｌｌで互に圧接する型式としたが、これに限るこ
となく例えば第４図示のように構成することが出来る。Although the cylindrical member (7) and the stylus (8) are of a type in which they face each other and press against each other with a spring, the present invention is not limited to this, and may be configured as shown in FIG. 4, for example.
即ちこの場合骸部材（７）は該軸（４〕上にボールベア
リングその他の転り軸受αａｔ介して嵌合されて該軸（
４）の回転には伴われないようにし、これを後方にのび
るリンクアーム（１３ｔ 介して該スタイラス（８）に
連結係合させるようにした。尚スタイラス（８）は前記
したモータα〔に連る送り螺杵（１０ａ）に螺合されて
前後動する型式とする。That is, in this case, the skeleton member (7) is fitted onto the shaft (4) via a ball bearing or other rolling bearing αat, and
4), and is connected and engaged with the stylus (8) via a link arm (13t) extending rearward.The stylus (8) is connected to the motor α [mentioned above]. It is of the type that is screwed onto the feed screw (10a) and moves back and forth.
その作動を説明するに１ワーク（３１Ｋ ［動ＩＩによ
る回転を与えた状態からスタイラス（８）に数値制御型
の前後動を与えるもので、かくて骸ワーク（３１Ｆｉコ
ｔｔと同軸（４）上の円筒部材（７）においテ該スタイ
ラス（８）を作用されてこれに応じた前後動を生じ、か
くてこれに所定のカムプロフィルを得ることが出来、更
にこの際紋ワーク（３）は該部材（７）を介して該スタ
イラス（８）によりその背面を支承されるもので、かく
て重研削その他によるもこれに逃げを生ずるようなこと
がない。−このように本発明によるときはクレードルヲ
数値制御されるスタイラスに応動させるものでワークに
任意のカムプロフィルを自在に与え得られて有利であり
更に該スタイラスはワークに対しその背側から作用する
もので、重研、削その池に際し該ワークの逃げを無くす
べく作用し従来のも・のの前記した不都合を無くし得ら
れる効果を有する。To explain its operation, it gives a numerically controlled back and forth movement to the stylus (8) from the state where one workpiece (31K) is rotated by Motion II, and is thus placed on the same axis (4) as the skeleton workpiece (31Fi Cott). The smell of the cylindrical member (7) causes the stylus (8) to move back and forth accordingly, thus making it possible to obtain a predetermined cam profile. The back side of the stylus (8) is supported via the member (7), so that it will not escape even during heavy grinding or other operations.-In accordance with the invention, the cradle The stylus is operated in response to a numerically controlled stylus, which is advantageous in that it can freely apply any cam profile to the workpiece.Furthermore, the stylus acts on the workpiece from the back side, making it easy to use during heavy grinding and grinding. It acts to eliminate the escape of the workpiece, and has the effect of eliminating the above-mentioned disadvantages of the conventional method.
第１図は従来例の説明線図、第２図は本発明装蓋の１例
の平面図、第３図はその要部の裁断側面図、第４図はそ
の変形例の仝断面図である。
（１）・・・クレードル （３１−・・ワ − り
（４）・・・軸 （６）・・・回転砥石（７
）・・・円筒部材 （８）・・・スタイラス（９）
・・・数値制御信号源
外２名Fig. 1 is an explanatory diagram of a conventional example, Fig. 2 is a plan view of an example of the lid of the present invention, Fig. 3 is a cutaway side view of its main parts, and Fig. 4 is a sectional view of a modified example thereof. be. (1)...Cradle (31-...Whole (4)...Shaft (6)...Rotary grindstone (7)
)...Cylindrical member (8)...Stylus (9)
...2 people outside the numerical control signal source
Claims (1)
と、その前方にこれに対向する回転砥石とを備える式の
ものにおいて、該クレードル上に骸ワークの回転軸上の
円筒部材と、その背側にこれと係合させて数値制御によ
り前後動するスタイラスとを備えて該クレードルに該ス
タイラスに応動する前後動を与えるようＫして成る力ふ
研削盤。 ２ 該円筒部材と該スタイラスを互に対向させてばねで
互に圧接係合させる特許請求の範囲第１項所載のカム研
削盤。 ３ 該円筒部材を骸回転軸上にボールベアリングその池
の転り軸受を介して嵌合させると共にこれを後方にのび
るリンクアームを介して骸スタイラスに連結係合させて
成る特許請求の範囲第１項所載のカム研削盤。[Scope of Claims] 1. In a type comprising a workpiece driven by a motor to rotate on a cradle and a rotating grindstone facing the workpiece in front of the workpiece, a cylindrical member on the rotation axis of the skeleton workpiece is placed on the cradle. and a stylus which is engaged with the stylus on its back side and moves back and forth under numerical control, so that the cradle is provided with a back and forth movement in response to the stylus. 2. The cam grinding machine according to claim 1, wherein the cylindrical member and the stylus are opposed to each other and pressed into engagement with each other by a spring. 3. Claim 1, wherein the cylindrical member is fitted onto the skeleton rotation shaft via a ball bearing and a rolling bearing, and this is connected and engaged with the skeleton stylus via a link arm extending rearward. Cam grinding machine listed in section.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10710781A JPS5810447A (en) | 1981-07-10 | 1981-07-10 | Cam grinding machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10710781A JPS5810447A (en) | 1981-07-10 | 1981-07-10 | Cam grinding machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5810447A true JPS5810447A (en) | 1983-01-21 |
Family
ID=14450638
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10710781A Pending JPS5810447A (en) | 1981-07-10 | 1981-07-10 | Cam grinding machine |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5810447A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4931107A (en) * | 1988-09-28 | 1990-06-05 | Nippon Steel Corporation | Process for producing a cold rolled steel sheet having a good ageing resistance by continuous annealing |
| US4960158A (en) * | 1988-09-28 | 1990-10-02 | Nippon Steel Corporation | Process for producing a zinc-plated steel sheet with an ageing resistance by hot dip-type, continuous zinc plating |
-
1981
- 1981-07-10 JP JP10710781A patent/JPS5810447A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4931107A (en) * | 1988-09-28 | 1990-06-05 | Nippon Steel Corporation | Process for producing a cold rolled steel sheet having a good ageing resistance by continuous annealing |
| US4960158A (en) * | 1988-09-28 | 1990-10-02 | Nippon Steel Corporation | Process for producing a zinc-plated steel sheet with an ageing resistance by hot dip-type, continuous zinc plating |
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