JPS62104816U

JPS62104816U -

Info

Publication number: JPS62104816U
Application number: JP19697085U
Authority: JP
Priority date: 1985-12-20
Filing date: 1985-12-20
Publication date: 1987-07-04

Description

[Brief explanation of the drawing]

第１図は本考案の一実施例であるブローチ装置
を示す正面図（一部断面）であり、第２図はその
ブローチ装置における主総形ブローチの平面図で
ある。第３図は第１図における―断面図であ
る。第４図は上記ブローチ装置の副総形ブローチ
による樹脂層の切削状態を示す正面断面図である
。第５図および第６図は、上記ブローチ装置によ
つて切削加工されるまゆ形ロータを備えたルーツ
型スーパチヤージヤを示す正面断面図および側面
断面図である。２０，２２：まゆ形ロータ、４０：ロータ本体
、４２：樹脂層、４４：ブローチ装置、４６：主
総形ブローチ、４８：副総形ブローチ、５４：カ
ツタ、５８：切刃、６８：カツタ、７２：切刃、
７８：スライド、８５：油圧シリンダ。 FIG. 1 is a front view (partially in section) showing a broaching device according to an embodiment of the present invention, and FIG. 2 is a plan view of a main overall broach in the broaching device. FIG. 3 is a cross-sectional view of FIG. 1. FIG. 4 is a front sectional view showing the cutting state of the resin layer by the subform broach of the broaching device. FIGS. 5 and 6 are a front sectional view and a side sectional view showing a roots-type supercharger equipped with a cocoon-shaped rotor cut by the broaching device described above. 20, 22: Cocoon-shaped rotor, 40: Rotor body, 42: Resin layer, 44: Broach device, 46: Main overall broach, 48: Sub-overall broach, 54: Katsuta, 58: Cutting blade, 68: Katsuta, 72: Cutting blade,
78: Slide, 85: Hydraulic cylinder.

Claims

[Claims for Utility Model Registration] It has a cutting edge that is approximately the same as the target outer circumferential dimension of a workpiece having a resin layer formed on its cylindrical outer circumferential surface parallel to the center line. In a broaching device equipped with a full-form broach that cuts the resin layer by relatively moving in a direction parallel to a center line, the outer circumferential dimension of the resin layer before the cutting process is larger than the target outer circumferential dimension. a sub-forming broach having a cutting edge of smaller dimensions; the sub-forming broach, together with said forming broach or separately, in a direction opposite to the cutting direction of said forming broach; A broach for processing a resin layer, characterized in that an actuator is provided to move the broach from the end of the machining end side to the middle part, so that cutting is performed by the sub-form broach prior to cutting by the general-form broach. Device.