JPS6326229A - Forging method for segment sprocket - Google Patents
Forging method for segment sprocketInfo
- Publication number
- JPS6326229A JPS6326229A JP9404887A JP9404887A JPS6326229A JP S6326229 A JPS6326229 A JP S6326229A JP 9404887 A JP9404887 A JP 9404887A JP 9404887 A JP9404887 A JP 9404887A JP S6326229 A JPS6326229 A JP S6326229A
- Authority
- JP
- Japan
- Prior art keywords
- die
- tooth
- forged product
- forging
- forged
- 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
Links
- 238000000034 method Methods 0.000 title claims abstract description 21
- 238000005242 forging Methods 0.000 title claims description 12
- 238000009966 trimming Methods 0.000 claims abstract description 8
- 239000002184 metal Substances 0.000 claims abstract description 5
- 238000010276 construction Methods 0.000 claims description 6
- 238000006243 chemical reaction Methods 0.000 claims 1
- 238000004519 manufacturing process Methods 0.000 claims 1
- 239000007769 metal material Substances 0.000 claims 1
- 238000007730 finishing process Methods 0.000 abstract description 2
- 238000005452 bending Methods 0.000 abstract 1
- 238000004080 punching Methods 0.000 abstract 1
- 238000003754 machining Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 235000013372 meat Nutrition 0.000 description 1
Landscapes
- Forging (AREA)
Abstract
Description
【発明の詳細な説明】
従来のセグメント・スプロケットの鍛造工法は通常0横
打式と縦杆式1法に2′″・(6o)第1図は横杆式に
よる湾曲した!J F、、K 5枚歯のある該鍛造品の
平面図。[Detailed Description of the Invention] Conventional forging methods for segment sprockets are usually 0 horizontal hammer type, 1 vertical rod type, and 2''' (6o) Figure 1 shows a curved one using horizontal rod type! K A plan view of the forged product with five teeth.
第2図はそのB−E’断面図。第3図は縦杆式による該
鍛造品の平面図。第4図はそのC−σ断面図。この横杆
式の該鍛造品を機械部品として使用するには型打鍛造時
に生ずる余肉部(6)、5枚の夫々の歯面(7)、その
両側面t81 (91、フランヂ片面翰両端面αυQ2
及びボルト孔Q3等の機械仕上げ加工を要する。FIG. 2 is a sectional view taken along the line B-E'. FIG. 3 is a plan view of the vertical rod type forged product. FIG. 4 is a sectional view taken along the line C-σ. In order to use this horizontal rod-type forged product as a machine part, the extra thickness (6) generated during die forging, the five tooth surfaces (7), and both sides t81 (91, both ends of the flange) Surface αυQ2
Also, machining of bolt holes Q3, etc. is required.
又縦杆式では作業工程上金型は余肉面Iに対して歯面t
1Sを平行になるようにし、両端面αea′Oはは形状
的に抜勾配を必要とするため抜勾配分の令肉0809を
付けなげればならぬ0従ってこの工法では作業上必要と
した令肉αII(11は勿論のことフランヂ両面■2D
、歯而の両側Q4(ハ)等の攪械加工を要する。In addition, in the vertical rod type, due to the work process, the mold is
1S are made parallel, and both end faces αea′O require a draft due to their shape, so it is necessary to add a thickness 0809 for the draft. Therefore, in this construction method, the required clearance for the work is Meat αII (11 as well as both sides of the flange ■2D
, requires machining such as Q4 (c) on both sides of the tooth.
この特許による工法は該贋械仕上工程を可能の限り除去
し、セグメント・スプロケット鍛造品の製品価額の軽減
を目的としたもので、第5図は上記第1工法による鍛造
品の平面図、第6図はD−が断面図である。The method according to this patent aims to eliminate the counterfeit finishing process as much as possible and reduce the product price of segment/sprocket forged products. In FIG. 6, D- is a cross-sectional view.
tL!1.鍛造品は令肉面(1)K対して歯面(2)を
平行になるよ5KL、両端部14)(5)K近い外側歯
型弼鰭は外に広がっていて、型鍛造時に選抜勾配になる
ため、抜勾配がつく範囲まで!を鍛造品の正規寸法の円
弧ス3)を広げる。即ち正規寸法歯型(至)鰭を予め点
線歯型(支)(ト)まで曲げてSI造しておき再び歯型
(至)罰の状態に迄矯正して復元する0第7図は該鍛造
品の金型平面図0第8図はトリーミンク矯正金型の断面
図でその作業工程を示す。即ちムーX線を界して左図は
該鍛造品(32)のトリーミンク矯正11iT o右図
はトリーミンク矯正完了状態で、第1工程仕上鍛造品(
勿の外周形状は正規寸法となる。tL! 1. For the forged product, the tooth surface (2) is parallel to the young flesh surface (1) K.5KL, both ends 14) (5) The outer tooth profile near K widens outward, and the selection gradient is applied during die forging. To the extent that there is a draft angle! 3) Expand the arc of the regular dimensions of the forged product. In other words, the regular dimension tooth type (to) fin is bent in advance to the dotted line tooth type (support) (g) and SI construction is performed, and then the tooth type (to) is restored by being straightened again. FIG. 8, which is a plan view of a mold for a forged product, is a sectional view of a trimming straightening mold and shows its working process. That is, the figure on the left after crossing the Mu X-rays shows the trimming correction of the forged product (32);
Of course, the outer circumferential shape is the regular size.
而してIN&鍛造品の正規寸法精度を細部にわたって向
上するため、この特許にか振る第2工法としての;イニ
ング工程を行う。In order to improve the regular dimensional accuracy of IN & forged products in every detail, an inning process is performed as a second method based on this patent.
9149因はコイニング本体である下部平面図、第10
図はそのEl−R’断面図0第11図はコイニング下金
屋受台(44)のy−yt’@面図である。第12図は
その金型平面図0第15図はそのG−ゲ断面図でコイニ
ング工程を示す0
第1工法を経た該鍛造品(325をコイニング型本体で
ある下型(39)に彫込まれた所定の部位r6 (as
)Kおき、その外周歯型面に対し七正規歯型が彫込まれ
、面かもその2面(46X47)Kテーパー(42)の
ある割駒(41)(41うを夫々コイニング型本体のテ
ーパー(43) Ic合せて入れ、この割駒(41X4
1うの上面(50)をtΔ密鍛造に必要とする金型彫込
みのある上型(49)で矢印(54)方向に、j19圧
し成型する0矢印(r!>Iz犬印(1+)にgノW’
rπηΣ工τ。The reason for 9149 is the bottom plan view of the coining body, No. 10.
The figure is an El-R' cross-sectional view, and FIG. 11 is a y-yt' @ side view of the coining lower metal cradle (44). Fig. 12 is a plan view of the mold 0 Fig. 15 is a G-ge cross-sectional view of the coining process 0 The predetermined part r6 (as
) K space, seven regular tooth patterns are carved into the outer tooth pattern surface, and the surface is also two surfaces (46 x 47) K taper (42). (43) Insert Ic and this wari piece (41X4
0 arrow (r!>Iz dog mark (1+)) Press and mold the upper surface (50) of 1 in the direction of arrow (54) by j19 with the upper mold (49) that has a mold engraving required for tΔ tight forging. nignow'
rπηΣ 工τ.
この特許は、コイニングする該鍛造品が!lf!5図第
6図図示6図くその形状は複雑な歯型のある而かも全体
くわたって円弧状に湾曲しているため、一体の金型では
製品表面を均−Kjl圧出来ぬ難点があるため、割駒(
41)(41うとしての金型を圧入することで!# *
成型を可能にするとと〜、コイニング工程終了後割駒(
41X41うの下部にある数本のノックビン(48)で
割駒(41X41うをエアー圧又は油圧等で押し揚げ、
容易に該鍛造品(51)をコイニング金型本体(39)
より取出すことが出来ることを特徴とする工法。This patent applies to forged products that are coined! lf! Figure 5Figure 6Figure 6Illustrated Figure 6The shape of the mold has a complex tooth pattern and is curved in an arc throughout, so it is difficult to apply uniform pressure to the product surface with a one-piece mold. , Warikoma (
41) (41) By press-fitting the mold! # *
After the coining process is completed, the warikoma (
Use several knock bottles (48) at the bottom of the 41X41 to push up the Warikoma (41X41) using air pressure or hydraulic pressure.
Easily coin the forged product (51) into the mold body (39)
This construction method is characterized by being able to take out more.
第1図はセグメント・スプロケットの従来の横杆式鍛造
工法による5枚歯の該鍛造品の平面図第2図は該鍛造品
のB−を断TF[f m o第3図は嵯打式による該改
造品の平面図。第4図は該鍛造品の0−σ断面図o弔5
図はこの特許Kか〜る該鍛造品の平面図。第6図は該鍛
造品のD−ゴ断面図。第7図は該鍛造品の岐打金型平面
図。
i 81’4はトリーミンク矯正金型の断面図でムーA
′線を界して左右にてトリーミンク矯正金型の効果を示
す説明図。Figure 1 is a plan view of a segment sprocket with 5 teeth made using the conventional horizontal rod type forging method. FIG. 3 is a plan view of the modified product. Figure 4 is a 0-σ cross-sectional view of the forged product.
The figure is a plan view of the forged product according to this patent. FIG. 6 is a D-go sectional view of the forged product. FIG. 7 is a plan view of the forging die. i 81'4 is a cross-sectional view of the trimming straightening mold.
An explanatory diagram showing the effect of the trimming correction mold on the left and right side of the ' line.
Claims (1)
ケットを製作するための鍛造工法に関するものである。 第1工法 セグメント・スプロケットの鍛造品は湾曲したリヴの外
縁に一列に数個の歯型が突出した形状のもので、そのう
ち数個の歯型が逆抜勾配になるため、該鍛造品の湾曲度
を広げて型鍛造し、次にその余肉を除去し、形状を正規
寸法にするトリーミングと予め湾曲させた該鍛造品の矯
正行程を行う工法。 第2工法 第1工法記載の工程を経た該鍛造品の細部の形状寸法を
精密修正するための歯型部を分割した駒型でコイニング
工程を行う工法。 この発明は、上記夫々の工法を順次実施して精密鍛造加
工することを特徴とする。 第1工法は別願の特許出願(1)への変更出願(昭和5
8年実用新案登録出願第203943号)にて、この特
許出願(2)と同時出願。 而して、第2工法はこの発明にかゝる特許請求の範囲の
セグメント・スプロケットの鍛造工法である。[Claims] The present invention relates to a forging method for manufacturing a segment sprocket by forging a forged metal material. The forged product of the first construction method segment sprocket has a shape in which several tooth patterns protrude in a line on the outer edge of a curved rib, and since several of the tooth patterns have a reverse draft angle, the curvature of the forged product A method in which die forging is performed by widening the radius, then the excess metal is removed, trimming is performed to make the shape regular, and the pre-curved forged product is straightened. 2nd method A method of performing a coining process using a piece mold in which the tooth part is divided for precisely correcting the detailed shape and dimensions of the forged product that has gone through the steps described in the first method. This invention is characterized in that precision forging is performed by sequentially implementing each of the above methods. The first method was applied for conversion to a separate patent application (1) (Showa 5
2008 Utility Model Registration Application No. 203943), filed at the same time as this patent application (2). Therefore, the second construction method is a forging construction method for a segment sprocket according to the claims of the present invention.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP9404887A JPS6326229A (en) | 1987-04-16 | 1987-04-16 | Forging method for segment sprocket |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP9404887A JPS6326229A (en) | 1987-04-16 | 1987-04-16 | Forging method for segment sprocket |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS6326229A true JPS6326229A (en) | 1988-02-03 |
JPH0341252B2 JPH0341252B2 (en) | 1991-06-21 |
Family
ID=14099673
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP9404887A Granted JPS6326229A (en) | 1987-04-16 | 1987-04-16 | Forging method for segment sprocket |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6326229A (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP5399736B2 (en) | 2009-02-19 | 2014-01-29 | 株式会社小松製作所 | Sprocket segment manufacturing method |
-
1987
- 1987-04-16 JP JP9404887A patent/JPS6326229A/en active Granted
Also Published As
Publication number | Publication date |
---|---|
JPH0341252B2 (en) | 1991-06-21 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
LAPS | Cancellation because of no payment of annual fees |