CN2385824Y

CN2385824Y - Simply orifice beveller

Info

Publication number: CN2385824Y
Application number: CN 99222384
Authority: CN
Inventors: 张存喜; 杜绍光
Original assignee: Qilu Petrochemical Co of Sinopec
Current assignee: Qilu Petrochemical Co of Sinopec
Priority date: 1999-09-17
Filing date: 1999-09-17
Publication date: 2000-07-05
Anticipated expiration: 2009-09-17

Abstract

The utility model relates to a simple orifice chamfering device which comprises a drilling bit. The utility model is characterized in that a cylindrical cutter frame with axial cutter slots is fixedly clamped on the drill bit by fastening screws, the axial cutter slots are distributed on both sides of the cutter frame symmetrically, and chamfering cutters are fixedly arranged in the axial cutter slots by screws respectively. Because of the adoption of the combination of the chamfering cutters and the drill bit by the adjustable cutter frame, the one-time accomplishment of hole drilling process and chamfering process is realized. So the utility model has the advantages of simple and compact structure and easy processing. The combination of drilling process and chamfering process is realized to improve processing efficiency and chamfering quality. The chamfering cutters are easy to sharpen.

Description

Simple type aperture chamfering device

The utility model belongs to machine tool, specifically is a kind of simple type aperture chamfering device.

The hole on the machine components and the processing of oral area chamfering now, mostly be to adopt the traditional boring earlier (or boring adds reaming) and then the processing method of chamfering, and must be with two kinds of cutter changing operations, when this processing method is used to process on the similar large heat exchanger tube sheet thousands of hole, time-consuming with regard to obviously existing, work efficiency is low; The sharpening workload of chmfer bit is big, and difficulty is big; Because drill bit does not have axial locating surface when chamfering, only be power sense control axial feed size by range estimation and arm, cause the deficiency of the uniformity difference of aperture chamfer dimesion.

It is a kind of simple and compact for structure that the purpose of this utility model is to provide, and realization is bored, work step unites two into one, and improves working (machining) efficiency and chamfer quality, the simple type aperture chamfering device of the easy sharpening of rose reamer.

The utility model is achieved through the following technical solutions:

It is a kind of simple type aperture chamfering device, comprise drill bit, it is characterized in that fixedly clamping the post tool holder that has the axial cutters groove by trip bolt on drill bit, the axial cutters groove is symmetrically distributed in the both sides of knife rest, and fixedly mounts rose reamer respectively with screw in the axial cutters groove.

The top of described knife rest is the suit gasket ring fixedly.

The bottom of described knife rest axial cutters groove has chip removal mouth.

Described post tool holder lower end is an axial locating surface.

Be screwed in the described axial cutters groove and install one above rose reamer.

The utility model compared with prior art owing to adopted by adjustable turning head rose reamer and drill bit are united two into one, has realized that boring, chamfering process once finish, so have the following advantages:

1, simple and compact for structure, be easy to processing.

2, realize that brill, the work step that falls unite two into one, and improve working (machining) efficiency and chamfer quality.

3, the easy sharpening of rose reamer.

Describe in further detail below in conjunction with accompanying drawing:

Fig. 1: the utility model example structure schematic diagram.

Fig. 2: Figure 1A is to profile.

Among the figure: 1 drill bit, 2 gasket rings, 3,6,7 housing screws, 4 knife rests, 5 rose reamers, 8 workpiece, 9 parallels

As shown in Figure 1, in use earlier being placed in the axial cutters groove of knife rest 4 by the good rose reamer 5 of chamfering size sharpening, adjusting the back is fixed with housing screw 6, then respectively gasket ring 2, knife rest 4 usefulness screws 7,3 are fixed on boring drill bit or reaming with on the appropriate location on the drill bit, workpiece 8 is placed on the parallels 9, handling lathe then processes workpiece 8, when being drilled into rose reamer 5 positions, 5 pairs of workpiece of rose reamer cut, iron filings under the cutting are discharged from the chip-removal hole on the knife rest, when knife rest lower surface and workpiece end face are close to, the brill in this hole, the disposable end of chamfer machining, the manipulation lathe withdraws from cutter and another hole is processed again, operation and so forth, being continuous boring and the chamfer machining of finishing workpiece 8, is the work efficiency that improves chamfer machining, can symmetry install one above rose reamer in the axial cutters groove.

Claims

1, a kind of simple type aperture chamfering device, comprise drill bit, it is characterized in that fixedly clamping the post tool holder that has the axial cutters groove by trip bolt on drill bit, the axial cutters groove is symmetrically distributed in the both sides of knife rest, and fixedly mounts rose reamer respectively with screw in the axial cutters groove.

2, simple type according to claim 1 aperture chamfering device, the top that it is characterized in that knife rest is the suit gasket ring fixedly.

3, simple type according to claim 1 aperture chamfering device is characterized in that having chip removal mouth in the bottom of knife rest axial cutters groove.

4, simple type according to claim 1 aperture chamfering device is characterized in that the post tool holder lower end is an axial locating surface.

5, simple type according to claim 1 aperture chamfering device is characterized in that being screwed in the axial cutters groove and installs one above rose reamer.