JPS5844943A - Manufacture of link - Google Patents
Manufacture of linkInfo
- Publication number
- JPS5844943A JPS5844943A JP14346081A JP14346081A JPS5844943A JP S5844943 A JPS5844943 A JP S5844943A JP 14346081 A JP14346081 A JP 14346081A JP 14346081 A JP14346081 A JP 14346081A JP S5844943 A JPS5844943 A JP S5844943A
- Authority
- JP
- Japan
- Prior art keywords
- forging
- link
- face
- blank material
- punch
- 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
- 238000004519 manufacturing process Methods 0.000 title claims description 4
- 238000005242 forging Methods 0.000 claims abstract description 15
- 238000000034 method Methods 0.000 claims description 6
- 239000000463 material Substances 0.000 abstract description 10
- 238000003754 machining Methods 0.000 abstract description 3
- 238000007493 shaping process Methods 0.000 abstract description 3
- 238000009966 trimming Methods 0.000 abstract 2
- 238000005520 cutting process Methods 0.000 description 4
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 238000005496 tempering Methods 0.000 description 2
- 238000010276 construction Methods 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 description 1
- 238000010791 quenching Methods 0.000 description 1
- 230000000171 quenching effect Effects 0.000 description 1
- 230000001629 suppression Effects 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
- B21J5/00—Methods for forging, hammering, or pressing; Special equipment or accessories therefor
- B21J5/02—Die forging; Trimming by making use of special dies ; Punching during forging
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
- B21J13/00—Details of machines for forging, pressing, or hammering
- B21J13/02—Dies or mountings therefor
- B21J13/025—Dies with parts moving along auxiliary lateral directions
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21K—MAKING FORGED OR PRESSED METAL PRODUCTS, e.g. HORSE-SHOES, RIVETS, BOLTS OR WHEELS
- B21K23/00—Making other articles
- B21K23/02—Making other articles members of endless tracks, e.g. track guides, shoes
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Forging (AREA)
Abstract
Description
【発明の詳細な説明】
本発明はブルドーザ−等の建設機械をはじめとする無限
軌道帯りンクの製造法に係わるものである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method for manufacturing endless track links for construction machines such as bulldozers.
従来のリンク製造法は熱間鍛造による成形とトリンング
を行ない、さらに焼入焼戻しした後にリンク増面を機械
切削加工していた。Conventional link manufacturing methods involve hot forging forming and tringing, followed by quenching and tempering, followed by mechanical cutting to increase the surface of the link.
しかるにこの様な工程では切削加工による歩留の悪化と
、切削工程の加工速度の問題から生産性を着るしく阻筈
してい友。However, in such a process, productivity is seriously hindered due to the deterioration of yield due to cutting and problems with the processing speed of the cutting process.
又一方強度的には鍛造時に形成されたメタルフローを切
削加工によって切断することによって、リンクとローラ
ーとの接触点の応力集中によるフローに沿り九亀裂を生
ずることがしばしば生じてい友。On the other hand, in terms of strength, when the metal flow formed during forging is cut by cutting, cracks often occur along the flow due to stress concentration at the contact point between the link and the roller.
本発明はかかる問題を解決するために案出されたもので
以下その詳細を図釘と共に１１！明する。The present invention was devised to solve this problem, and the details will be explained below along with the illustrations. I will clarify.
リンクの鍛造加工は第１図に示す如く素材に）を加熱し
九後荒打（２）を行い、次いで仕上打（）を行ってから
その周辺のトリムをトリミング（ロ）し、°シかる後に
本発明のｌ１ＩＩ１１ｉＩ鍜造（２）を行うものである
。端面鍛造加工紘第２８にその一例を示している。整形
トリ五打（２）をされたリンク材１は下型受台２の上に
＠置され、−’ｒｍの両側面に端間鍛造ダイ３．３′が
バネ４．４′によ）普通は外方に開く如く蓄勢されてシ
シ、さらに上記ダイ３．３′の背面は傾斜プツター面５
．５′となっている。上ｍ５Ｆｉその量端澤でりンタ材
１を押えるように上下動可能となってお夛、またさらに
バネ１によ）常時下方に付勢されている。上履−の両側
には下盤ダイ３．３′の傾斜コツクー面５．５′に！！
＆接して側圧鍛造力を加えるフッタ−８，８′が配設さ
れておｐ、下聾上に載置されたリンク１は先ず一上型６
０下降によつて下型との間に位置決め押え付けられ、さ
らに上型が下降すると、下型ダイ３．３′は上ｍスツタ
ー８．８′の傾斜コツター面５．５′面が摺接すること
によ）、横方向に相互にリンク１の左右両端面に圧接さ
れて端面を鍛造整形し、平行平＠部を形成する。To forge the link, as shown in Figure 1, the material is heated (2), rough hammered (2), then finished hammered (2), and the trim around it is trimmed (2). Afterwards, the l1II11iI forging (2) of the present invention is carried out. An example of this is shown in No. 28 of the end face forging process. The link material 1 that has been shaped (2) is placed on the lower die pedestal 2, and a forging die 3.3' between the ends is placed on both sides of -'rm by a spring 4.4'). Normally, the force is stored so as to open outward, and the back surface of the die 3.3' has an inclined putter surface 5.
．． 5'. The upper m5Fi is movable up and down so as to press the printer material 1 at its end, and is always urged downward (by the spring 1). On both sides of the shoe, there is a slanted surface 5.5' of the lower die 3.3'! !
Footers 8 and 8' are provided to apply lateral pressure forging force in contact with each other.
When the upper die is further lowered, the lower die 3.3' comes into sliding contact with the inclined cotter surface 5.5' of the upper m-stuter 8.8'. (possibly), they are laterally pressed against both left and right end surfaces of the link 1, and the end surfaces are forged and shaped to form parallel flat parts.
以上の工程を経たリンク１は最終の焼入、焼戻′を行っ
て一連の加工工程を完了するのである。かくの如くした
リンク１によれば材料の鍛造フ四−は強度上はとんど影
響のないエッヂトリム部のわずかな幅の部分を除き７ｏ
−は切断されることなく連続するので、リンクとローラ
ーとの接触点での応力集中による大きな力に対してもツ
ー−に沿った破損は生じないので、耐久強度紘大巾に改
善されると共に一連の鍛造加工工程中にリンク両端来を
期待することができる°。The link 1 that has undergone the above steps undergoes final hardening and tempering to complete a series of processing steps. According to the link 1 as described above, the forged frame of the material is 7 o
- is continuous without being cut, so even if there is a large force due to stress concentration at the point of contact between the link and the roller, damage along the - will not occur, resulting in a vast improvement in durability and strength. During the series of forging processes, you can expect the link to come loose at both ends.
第１図は本発明に係るリンクの加工工程をあら□わす説
明図、＃Ｉ２図は本発明において使用されるリンク増面
の抑圧整形装置の一例をあられすｌ！部部面面図ある。
１・・・リンク素材 ２・・・下型受台 ３．３′・・
・ｌＩＩ面鍜造鍛造 ４．４’ ＊ａ＊バネ ５．５′
・・・傾斜コツター面 ６・・・上ＭＩ Ｔ・・・バネ
８．８′・・・コツター発 明 ′者 鉤
木 ９同 ＃ 津 担 克
同 石 １） 久、 雄同 清水辰次
部
％奸出願人 トビー工業株式会社
同 清水鉄工株式会社Fig. 1 is an explanatory diagram showing the link machining process according to the present invention, and Fig. #I2 is an example of the link surface increase suppression shaping device used in the present invention. There is a partial side view. 1...Link material 2...Lower mold holder 3.3'...
・II face forging 4.4' *a* spring 5.5'
...Inclined Kotter surface 6...Upper MI T...Spring 8.8'...Kotter invention Inventor Hook
Tree 9 Do # Tsu Tan Katsu Do Ishi 1) Hisashi, Yudo Shimizu Tatsujibe Percentage Applicant Tobii Industries Co., Ltd. Shimizu Iron Works Co., Ltd.
Claims (1)
グ後にリンクＴｊａ面を抑圧整形鍛造するようにしたこ
とを特徴とするリンクの製造法：In the link hot forging process, finish hammering and
A method for manufacturing a link characterized in that the Tja surface of the link is pressed and forged after forming:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14346081A JPS5844943A (en) | 1981-09-11 | 1981-09-11 | Manufacture of link |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14346081A JPS5844943A (en) | 1981-09-11 | 1981-09-11 | Manufacture of link |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5844943A true JPS5844943A (en) | 1983-03-16 |
Family
ID=15339215
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP14346081A Pending JPS5844943A (en) | 1981-09-11 | 1981-09-11 | Manufacture of link |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5844943A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0096812A3 (en) * | 1982-06-03 | 1986-03-19 | Caterpillar Tractor Co. | Method and apparatus for forging track links |
| KR20020030157A (en) * | 2000-10-16 | 2002-04-24 | 이경희 | Link manufacture system of chain for trolley conveyor |
| CN103042145A (en) * | 2012-12-25 | 2013-04-17 | 国营第六一六厂 | Precision die forging process for wrenches |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS48102768A (en) * | 1972-04-11 | 1973-12-24 | ||
| JPS4964544A (en) * | 1972-10-25 | 1974-06-22 |
-
1981
- 1981-09-11 JP JP14346081A patent/JPS5844943A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS48102768A (en) * | 1972-04-11 | 1973-12-24 | ||
| JPS4964544A (en) * | 1972-10-25 | 1974-06-22 |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0096812A3 (en) * | 1982-06-03 | 1986-03-19 | Caterpillar Tractor Co. | Method and apparatus for forging track links |
| KR20020030157A (en) * | 2000-10-16 | 2002-04-24 | 이경희 | Link manufacture system of chain for trolley conveyor |
| CN103042145A (en) * | 2012-12-25 | 2013-04-17 | 国营第六一六厂 | Precision die forging process for wrenches |
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