公开(公告)号：WO2008096935A1

公开(公告)日：2008-08-14

申请号：PCT/KR2007/002238

申请日：2007-05-07

Applicant: DAECHANG FORGING CO., LTD. ,  CHO, Bum Je

Inventor： CHO, Bum Je

IPC: B23P15/00 ,  B23P15/20

CPC classification number: B23P15/00 ,  B21L99/00 ,  B23H7/02 ,  B23H9/00 ,  B23H9/12 ,  B23H11/003 ,  B62D55/213

Abstract: The present invention relates to a method of machining a master link disposed at a distal end of a chain and constituting a part of a track chain link of a lower driving device used in an endless track vehicle (a bulldozer, an excavator). According to the present invention, it is possible to rapidly perform the machining work by secondarily adjusting the horizontal degree and the vertical degree of the integrally manufactured front and rear master link in a short time after primarily wire cutting it by using an exclusive clamping jig for the primary wire cut and an exclusive clamping jig for the secondary machining center, and machine the interference portion generated at the time of the assembly of the master link with the corresponding product, by using the machining center provided with the ball end mill, the flat end mill, and the chamfer end mill, in a short time, thereby achieving reduction of the machining time, maintaining the uniform quality and reduction of the production expense.

Abstract translation: 本发明涉及一种加工设置在链条的远端并且构成在循环轨道车辆（推土机，挖掘机）中使用的下驱动装置的履带链节的一部分的主链节的方法。 根据本发明，通过使用专用的夹紧夹具对其进行一次线切割后的短时间内二次调整整体制造的前后主母线的水平度和垂直度，可以快速地进行加工作业 主切割线和用于二次加工中心的专用夹具，并且通过使用设置有球头立铣刀的加工中心，将主链节与相应产品组装时产生的干涉部分加工成平面 端铣刀和倒角立铣刀，在短时间内，由此实现了加工时间的缩短，保持了均匀的品质，降低了生产成本。

公开(公告)号：WO2008082034A1

公开(公告)日：2008-07-10

申请号：PCT/KR2007/002239

申请日：2007-05-07

Applicant: DAECHANG FORGING CO., LTD. ,  CHO, Bum Je ,  JEGAL, Young Jin

Inventor： CHO, Bum Je ,  JEGAL, Young Jin

IPC: B21K23/02

CPC classification number: B21K1/30 ,  B21J5/02 ,  B21K23/02

Abstract: Disclosed therein are an apparatus and method for manufacturing a sprocket segment, which can manufacture the sprocket segment through a simplified process including hot precision forging, through hardening and painting, thereby reducing manufacturing period and cost and securing competitive power. The sprocket segment manufacturing method includes: a primary hot forging process of putting a heated billet in a booster die 10 mounted on a forging press to perform a distribution of volume; a secondary hot forging process of putting the hot forged material M in a blocker die 11 to form a rib face 4; a tertiary hot forging process of putting the secondarily hot forged material M in a finisher die 12 to keep right angles and planes of a toothed face 6 and the rib face 4; and a process of putting the tertiarily hot forged material M in a product guide die 22 of a trimming-piercing-coining die 13 to eliminate a flash and form bolt holes 7 simultaneously.

Abstract translation: 其中公开了一种用于制造链轮段的装置和方法，其可以通过包括热精密锻造在内的简化过程，通过硬化和喷涂来制造链轮段，从而减少制造周期和成本并确保竞争力。 链轮段制造方法包括：将加热的坯料放入安装在锻压机上的升压模具10中进行体积分配的一次热锻造工序; 将热锻造材料M放入阻塞模11中的二次热锻造工序，形成肋面4; 将第二热锻造材料M放入整理器模具12中以保持齿面6和肋面4的直角和平面的三次热锻造工艺; 以及将一次热锻造材料M放入修整穿孔 - 冲压模13的产品导向模具22中以消除闪光并同时形成螺栓孔7的过程。