JPS6332738U

JPS6332738U -

Info

Publication number: JPS6332738U
Application number: JP12339586U
Authority: JP
Priority date: 1986-08-13
Filing date: 1986-08-13
Publication date: 1988-03-02

Description

[Brief explanation of the drawing]

第１図は本考案の一実施例にかかる偏心溝加工
装置の断面図（第２図の―断面図）、第２図
はその正面図、第３図はオイルポンプハウジング
の断面図（第４図の―断面図）、第４図はそ
の溝形状を表わす底面図、第５図は本偏心溝加工
装置を搭載する送りユニツトの部分破断側面図、
第６図はその部分破断平面図、第７図は本偏心溝
加工装置を用いてオイルポンプハウジングの溝の
加工と中心孔の加工が同一工程で行えるように構
成された装置の平面図である。図面中、２１は偏心円筒、２３は外側主軸、２
４は内側主軸、２７は外溝加工用工具、２８は第
１のホルダ、３０は内溝加工用工具、３１は第２
のホルダである。 Fig. 1 is a cross-sectional view of an eccentric groove machining device according to an embodiment of the present invention (cross-sectional view shown in Fig. 2), Fig. 2 is a front view thereof, and Fig. 3 is a cross-sectional view of an oil pump housing (Fig. 4). Figure 4 is a bottom view showing the groove shape, Figure 5 is a partially cutaway side view of the feed unit equipped with this eccentric groove machining device,
FIG. 6 is a partially cutaway plan view of the same, and FIG. 7 is a plan view of an apparatus configured so that the groove and center hole of the oil pump housing can be processed in the same process using this eccentric groove processing device. . In the drawing, 21 is an eccentric cylinder, 23 is an outer main shaft, 2
4 is an inner main spindle, 27 is an outer groove machining tool, 28 is a first holder, 30 is an inner groove machining tool, and 31 is a second
It is a holder.

Claims

[Scope of utility model registration request]

an eccentric cylinder having an outer circumferential surface and an inner circumferential surface whose center axes are eccentric to each other and fixed to an apparatus frame; and an eccentric cylinder rotatably supported concentrically on the outer circumferential surface of the eccentric cylinder, and a cutting tool for processing is held at the tip. an outer main shaft to which a first holder is attached, and an inner main shaft to which a second holder is attached, the second holder being rotatably supported concentrically on the inner circumferential surface of the eccentric cylinder and holding a cutting tool at its tip. An eccentric groove machining device comprising: means for rotationally driving both the main shafts in synchronization.