JPS60104611A - Gear finishing method - Google Patents
Gear finishing methodInfo
- Publication number
- JPS60104611A JPS60104611A JP20991183A JP20991183A JPS60104611A JP S60104611 A JPS60104611 A JP S60104611A JP 20991183 A JP20991183 A JP 20991183A JP 20991183 A JP20991183 A JP 20991183A JP S60104611 A JPS60104611 A JP S60104611A
- Authority
- JP
- Japan
- Prior art keywords
- gear
- cut
- roller dies
- roller die
- spindle
- 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
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21H—MAKING PARTICULAR METAL OBJECTS BY ROLLING, e.g. SCREWS, WHEELS, RINGS, BARRELS, BALLS
- B21H5/00—Making gear wheels, racks, spline shafts or worms
- B21H5/02—Making gear wheels, racks, spline shafts or worms with cylindrical outline, e.g. by means of die rolls
- B21H5/022—Finishing gear teeth with cylindrical outline, e.g. burnishing
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Gear Processing (AREA)
Abstract
Description
【発明の詳細な説明】
本発明は、歯車形状をなすローンダイスを使った歯車仕
上加工法に関する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a gear finishing method using a gear-shaped lawn die.
歯車の仕上加工法としては、数多くのものがあるが、自
動車や産業機械用の歯車にはシェービング加工法が多く
採用されている。しかしながら、この加工法を実施する
には、シェービング盤やシェービングカッタなど高価な
設備や工具を準備しなけれはならず、最近の製品の低コ
スト化傾向に合わなくなってしまっている。製品の低コ
スト化の一方法として、シェービング盤ヤシェービング
力ツタのコストを下げることが考えられるが、これらは
確立された技術で、コスト的な改良の余地ullとんど
ないと考えてよい。There are many finishing methods for gears, but the shaving method is often used for gears for automobiles and industrial machinery. However, in order to carry out this processing method, expensive equipment and tools such as a shaving machine and a shaving cutter must be prepared, which makes it unsuitable for the recent trend toward lower product costs. One way to reduce the cost of products is to reduce the cost of shaving machines and shaving power, but these are established technologies and there is little room for cost improvement.
上記のような実情により、間車仕上加工を低コストで行
なえ、しかも従来の1車仕上加工法と同等あるいはそれ
よりすぐれた精度1作業性の新M、な加工方法の出現が
望まれている。Due to the above-mentioned circumstances, there is a desire for the emergence of a new machining method that can perform intermediate wheel finishing at low cost, and has accuracy equal to or better than the conventional single wheel finishing method. .
本発明は上記賛望に応えるべく、歯車画面の面粗度、凹
凸を押しつぶしてなめらかにするという着想に基づきな
されたもので、その構成は、間車形状をなすローラダイ
スを歯切加工された被削鋼車と噛み合わせ、被削鋼車を
同転自在に支持した状態でローンダイスを正逆回転駆動
するとともにローンダイスと被削鋼車との間に相対的な
互いに接近する力を与えることを特徴とする。In order to meet the above-mentioned demands, the present invention was developed based on the idea of smoothing out the surface roughness and irregularities of the gear surface by crushing and smoothing it. The lawn die is engaged with the steel car to be machined, and while the steel car to be cut is rotatably supported, the lawn die is driven to rotate in forward and reverse directions, and a force is applied between the lawn die and the steel car to be machined so that they approach each other relative to each other. It is characterized by
以下、本発明に係る1単仕上加工法の−実施例を図面上
参照して詳細に説明する。DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, embodiments of the one-single finishing method according to the present invention will be described in detail with reference to the drawings.
第1図忙は本発明方法の実施に供さする歯車仕上加工機
の正面外観を示す。この機械は、シェービング盤上利用
したもので、ベッドl上にはそれぞれセンタ2,3を具
える心押台4,5が設置してあ)、前加工された歯車(
被削歯車)6はこnらの心押台4,5によシ回転自在に
両センタ支持される。ベッド1の上方には主軸頭7が上
下動可能に設けてあシ、正逆駆動回転可能なその主軸8
には、第2図(a) (b)に示すような歯車形状のロ
ーラダイス9が取付けらnる。図中、10はローラダイ
ス9と被削歯車6の心間方向に押し付は方を付与する装
置である。FIG. 1 shows the front appearance of a gear finishing machine used for carrying out the method of the present invention. This machine was used on a shaving machine, and tailstocks 4 and 5 each having centers 2 and 3 were installed on the bed l), pre-processed gears (
The gear to be cut 6 is rotatably supported by these tailstocks 4 and 5 at both centers. A spindle head 7 is provided above the bed 1 so as to be movable up and down, and its spindle 8 is rotatable in forward and reverse directions.
A gear-shaped roller die 9 as shown in FIGS. 2(a) and 2(b) is attached to the holder. In the figure, reference numeral 10 denotes a device that applies pressure in the center-to-center direction between the roller die 9 and the gear 6 to be cut.
被削歯車6の仕上加工上行なうには、先ず主軸頭7を下
降して主軸8上のローラダイス9と被削歯車6と上第3
図に示すように噛み合わせ、次いで主軸8と共にローラ
ダイス9を駆動回転し、ローラダイス9と噛み合ってい
る被削歯車6を連れ回シ(従動)させる。この状態で、
前記装置により、ローラダイス9を被削歯車6に、ある
いは被削歯車6會ロー2ダイス9に、これらの心間方向
に軽く一定の力で押し付け、数秒間ずつ正逆回転きせる
。以上によル、被削歯車6の歯面の面粗度や凹凸は押し
つぶされ、歯面はなめらかとなる。尚、ローラダイス9
を正転及び逆転させるのは、被削歯車6の両歯面を加工
するためである。To finish finishing the gear to be cut 6, first lower the spindle head 7 and insert the roller die 9 on the spindle 8, the gear to be cut 6, and the upper third
As shown in the figure, they are engaged, and then the roller die 9 is driven and rotated together with the main shaft 8, and the gear 6 to be cut, which is engaged with the roller die 9, is rotated (driven). In this state,
Using the above device, the roller die 9 is pressed against the gear 6 to be cut, or the gear 6 and the two dies 9 to be cut, with a light constant force in the center-to-center direction, and the roller die 9 is rotated forward and backward for several seconds at a time. As a result of the above, the surface roughness and irregularities on the tooth surface of the gear to be cut 6 are crushed, and the tooth surface becomes smooth. In addition, roller dice 9
The reason for rotating forward and reverse is to process both tooth surfaces of the gear 6 to be cut.
第4図(a)Φ)及び第5図(a)伽)には前加工(例
えばホブ切シ)後の歯車と前加工後本発明方法によシ仕
上加工した歯車の歯面の歯筋方向(第6図中のa方向)
及び歯形方向(第6図中のb方向)の精度を示しである
。尚、第4図(a)の)、第5図(a)の)中の符号は
第6図中のものと対応しておシ、R,Lは歯の右側の歯
面と左側の歯面を示し、To、Bは歯の上部側と下部側
を示し Tli。Fig. 4 (a) Φ) and Fig. 5 (a) ka) show a gear after pre-processing (for example, hobbing) and a tooth trace on the tooth surface of a gear finished by the method of the present invention after pre-processing. Direction (direction a in Figure 6)
and accuracy in the tooth profile direction (direction b in FIG. 6). Note that the symbols in Fig. 4 (a)) and Fig. 5 (a) correspond to those in Fig. 6, and R and L indicate the right side of the tooth and the left side of the tooth. To and B indicate the upper and lower sides of the tooth; Tli.
ROは歯先部と歯元部をそれぞれ示す。又、第7図と第
8図には、前加工後の歯車と前加工後本発明方法により
仕上加工した歯車の単一ビンテ誤差と累積ピッチ誤差’
1−enぞれ示す。こ牡らの図かられかるように1稍既
はJIS 2〜3級がJIS 0〜1級に向上する。RO indicates the tooth tip and tooth root, respectively. Furthermore, Figures 7 and 8 show the single binte error and cumulative pitch error of the gear after pre-machining and the gear finished by the method of the present invention after pre-machining.
1-en are shown respectively. As you can see from these figures, JIS 2 to 3 grades will improve to JIS 0 to 1 in just 1 minute.
又、第9図には、シェービング加工した歯車、前加工後
の歯車、前加工後本発明方法によシ仕上加工した歯車の
噛み合い騒音についての測定結果を示す。図中、(◎)
はシェービング仕上したものであシ、(・)は前加工後
のもの、(○)は前加工後本発明方法によシ仕上加工し
たものを示す。この図かられかるように、本発明方法に
よシ仕上加工した歯車は、前加工後のものよシ2〜3d
B(Aスケール)低い値を示し、しかもシェービング加
工したものと同等あるV・はそれよシまさる騒音低下効
果が得ら牡る。Further, FIG. 9 shows the measurement results of meshing noise of gears that have been shaved, gears that have been pre-processed, and gears that have been finished by the method of the present invention after pre-processing. In the figure, (◎)
Symbols (•) indicate those after pre-processing, and (○) indicate those after pre-processing using the method of the present invention. As can be seen from this figure, the gear finished by the method of the present invention is 2 to 3 d
V., which shows a low B (A scale) value and is equivalent to the shaved material, has a better noise reduction effect.
尚、本発明方法は仕上転造やシェービング加工と似てい
るが、積極的に切込み?与えないところがこれらの方法
と大きく異なる。The method of the present invention is similar to finish rolling and shaving processing, but does it involve aggressive cutting? It differs greatly from these methods in that it does not give anything.
以上、実施例に基づき詳細に説明したように、歯車形状
全なすローラダイスを歯切加工された被削歯車と噛み合
わせ、被削歯車全回転自在に支持した状態でローラダイ
スを正逆回転駆動するとともにローラダイスと被削歯車
との間に相対的な互いに接近する力を与えて、ローラダ
イスによシ被削歯車の歯面の送シ目や凹凸を押しつぶし
て歯面をなめらかに加工する本発、明の歯車仕上加工法
によれば、工具として安価なローラダイスを使用するこ
とからイニシャルコスト及びランニングコストを下げる
ことができ、また装置としても高剛性の特殊設備が不要
となることから設備費も低減でき、ひいては歯車の製造
コストを下げることができる。また、本発明方法によれ
ば、寵−ラダイスと被削歯車と全噛み合わせて正逆転さ
せればよいので短時間で加工が行なえ、作業性が向上す
るとともに、歯形、歯筋、ピッチ等の精度のすぐれた歯
車全書ることができる。As described above in detail based on the examples, a roller die having a complete gear shape is meshed with a gear-cut workpiece gear, and the roller die is driven to rotate in forward and reverse directions while the workpiece gear is fully rotatably supported. At the same time, a force is applied between the roller die and the gear to be cut relative to each other, and the roller die crushes the grooves and irregularities on the tooth surface of the gear to be cut, making the tooth surface smooth. According to the gear finishing method of the present invention, an inexpensive roller die is used as a tool, so initial costs and running costs can be reduced, and special equipment with high rigidity is not required. Equipment costs can also be reduced, and gear manufacturing costs can also be reduced. In addition, according to the method of the present invention, since it is only necessary to fully engage the cutter die and the gear to be cut and rotate the gear in the forward and reverse directions, machining can be carried out in a short time, workability is improved, and the tooth profile, tooth trace, pitch, etc. All gears with excellent precision can be written.
第1図は本発明方法の実施に供する歯車仕上加工機の一
例の正面図、第2図(a) (b)はローラダイスの正
面図と断面図、第3図はローラダイスと被削歯車のr#
Jみ合い状態金示す概略図、第4図(a)Φ)は前加工
後の歯車の精度を示す線図、第5図(a)の)は本発明
方法によシ加工した歯車の精度を示す線図、第6図は歯
車の一部の斜視図、第7図、第8図は前加工後の歯車と
本発明方法によシ仕上加工した歯車の単一ピッチ誤差と
累積ピッチ誤差を示す線図、第9図はシェービング仕上
げ後の歯車、前加工後の歯車、本発明方法によル仕上加
工した歯車の噛み合いによる音圧レベルを示すグラフで
ある。
図 面 中、
6は被削歯車、
8は主軸、
9はローラダイスである。
特許出願人
三菱重工業株式会社
武蔵精′密工業株式会社
復代理人
弁理士光石士部
(他1名)
第2図
(a) (b)
第3図
第4図(a)
第4図(b)
F?OTi イOFig. 1 is a front view of an example of a gear finishing machine used to implement the method of the present invention, Figs. 2(a) and 2(b) are a front view and a sectional view of a roller die, and Fig. 3 is a roller die and a gear to be cut. r#
Figure 4 (a) Φ) is a diagram showing the accuracy of the gear after pre-machining; Figure 5 (a)) is a diagram showing the accuracy of the gear machined by the method of the present invention. Figure 6 is a perspective view of a part of the gear, Figures 7 and 8 are the single pitch error and cumulative pitch error of the gear after pre-machining and the gear finished by the method of the present invention. FIG. 9 is a graph showing sound pressure levels due to meshing of gears after shaving, gears after pre-processing, and gears finished by the method of the present invention. In the drawing, 6 is a gear to be cut, 8 is a main shaft, and 9 is a roller die. Patent Applicant: Mitsubishi Heavy Industries, Ltd. Musashi Precision Industry Co., Ltd. Sub-Agent Patent Attorney Shibe Mitsuishi (and 1 other person) Figure 2 (a) (b) Figure 3 Figure 4 (a) Figure 4 (b) ) F? OTi iO
Claims (1)
被削国軍と噛み合わせ、被削図車を回転自在に支持した
状態でローラダイスを正逆回転駆動するとともにローン
ダイスと被削鋼車との間に相対的な互いに接近する力を
与えることを特徴とする歯車仕上加工法。National army shape'f! :The eggplant roller die is engaged with the machined steel wheel that has been cut by t-m, and the roller die is driven in forward and reverse rotation while the workpiece wheel is rotatably supported. A gear finishing method characterized by applying relative forces that bring them closer to each other.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP20991183A JPS60104611A (en) | 1983-11-10 | 1983-11-10 | Gear finishing method |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP20991183A JPS60104611A (en) | 1983-11-10 | 1983-11-10 | Gear finishing method |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS60104611A true JPS60104611A (en) | 1985-06-10 |
Family
ID=16580690
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP20991183A Pending JPS60104611A (en) | 1983-11-10 | 1983-11-10 | Gear finishing method |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS60104611A (en) |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5219537A (en) * | 1975-08-04 | 1977-02-14 | Ricoh Co Ltd | Barrier for the liquid developer |
-
1983
- 1983-11-10 JP JP20991183A patent/JPS60104611A/en active Pending
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5219537A (en) * | 1975-08-04 | 1977-02-14 | Ricoh Co Ltd | Barrier for the liquid developer |
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