CN203030995U

CN203030995U - Compound cutter

Info

Publication number: CN203030995U
Application number: CN 201220631041
Authority: CN
Inventors: 刘志敏
Original assignee: Chongqing Lin Teng Machinery And Electronics Co Ltd
Current assignee: Chongqing Lin Teng Machinery And Electronics Co Ltd
Priority date: 2012-11-26
Filing date: 2012-11-26
Publication date: 2013-07-03
Anticipated expiration: 2022-11-26

Abstract

The utility model discloses a compound cutter which comprises a cutter head and a cutter handle. A blind hole which is matched with the rear end of the cutter head is formed in the front end of the cutter handle along a center axis of the cutter handle, a positioning hole which is vertically communicated with the blind hole is formed in the cutter handle, and a screw is installed at the position of the positioning hole. A bottoming drill with a chip space is arranged at the front end of the cutter head, the rear end of the cutter head is inserted into the blind hole, and chamfered cutting edges are arranged on the cutter handle. The compound cutter overcomes the defect that in the process of drilling and machining a ream face and a chamfer, a cutter needs changing, and a cutter head is not stably connected with a cutter handle. An improved compound cutter is provided, drilling and machining of the ream face and the chamfer can be carried out by one step, machining precision is improved, and machining time is saved.

Description

A kind of compound tool

Technical field

The utility model belongs to a kind of machining tool, is particularly related to a kind of compound tool.

Background technology

The reaming of machining, ream face, the used conventional method of chamfering are at first to carry out reaming with drill bit, use the countersink spot facing then, re-use the drill bit chamfering; Because technology is coarse, the hole dimension and the surface quality that process do not reach requirement.And different processing methods need bore with bit change more, countersink, chamfering, and manufacturing procedure increases, and directly causes increase process time.

The utility model content

Technical problem to be solved in the utility model provides a kind of compound tool, and reaming, ream face, chamfering settle at one go, and cutter head and handle of a knife combination is simultaneously installed stable.

In order to solve the problems of the technologies described above, the utility model provides following technical scheme: a kind of compound tool, comprise cutter head and handle of a knife, described its central shaft of handle of a knife front end edge is provided with the blind hole with cutter head rear end form fit, have the locating hole of vertical connection blind hole on the described handle of a knife, described locating hole place is equipped with screw; Described cutter head front end is provided with the bottoming drill of a band chip area, and the rear end is installed in the described blind hole; Wherein, also be provided with chamfered cutting edge on the described handle of a knife.

Handle of a knife offers two described locating holes vertically successively.

Handle of a knife along central shaft to being symmetrically welded with two described chamfered cutting edges.

The angle of chamfered cutting edge is 30 °.

Before the processing, earlier the bottoming drill rear end is installed in the blind hole of handle of a knife, screws the screw at locating hole place then, make screw block cutter head under the locating hole, can increase cutter head like this and be installed in fastness on the handle of a knife, then cutter is fixed on the lathe.

Add man-hour, according to the requirement of workpiece processing dimension, the feeding cutter, boring, ream face, chamfering settle at one go.

Advantage: 1, structure of the present utility model can make processing boring, ream face, chamfering settle at one go, has avoided that processing boring, ream face, chamfering all need to change the defective that the appointment cutter is processed in the prior art, has reduced manufacturing procedure, has saved process time.2, offer two locating holes of vertical connection blind hole on the handle of a knife, this locating hole place is provided with screw, and by screwing screw, screw touches the cutter head under the locating hole, can play the effect of blocking cutter head, makes the combination of cutter head and handle of a knife install more stable; 3, this is simple in structure, and low cost of manufacture has been saved expense.

Description of drawings

Fig. 1 structure chart of the present utility model.

Fig. 2 handle of a knife partial sectional view of the present utility model

The schematic diagram of two machining holes of Fig. 3 specific embodiment of the utility model.

The specific embodiment

Embodiment one

As Fig. 1, shown in Figure 2, the utility model is a kind of compound tool, comprise cutter head 1 and handle of a knife 2, described its central shaft of handle of a knife 2 front end edges is provided with the blind hole 5 with cutter head 1 rear end diameter form fit, have vertical connection blind hole 5 on the described handle of a knife 2, be used for the fixedly locating hole 3 of cutter head 1, described cutter head 1 front end is provided with the bottoming drill 6 of a band chip area, the rear end is installed in the described blind hole 5, described handle of a knife 2 front end edges axially offer two locating holes 3 with blind hole 5 vertical connections, to being symmetrically welded with two chamfered cutting edges 4, the angle of chamfered cutting edge 4 is 30 ° along handle of a knife 2 central shafts.

Handle of a knife offers two described locating holes vertically successively.

The angle of chamfered cutting edge is 30 °.

Embodiment two

As Fig. 1, Fig. 2, shown in Figure 3, be example with the present embodiment, when the utility model of displaying was specifically processed and used, that how to accomplish to settle at one go carried out reaming, ream face, chamfer machining.

Before the processing, now bottoming drill 3 is installed on the handle of a knife 2, then handle of a knife 2 is fixed on the lathe.

Add man-hour, start lathe, bottoming drill 6 touches work piece, feeding cutter slowly, and bottoming drill 6 processes the hole 7 of diameter, simultaneously the ream face is carried out in hole 7, and chamfered cutting edge 4 is finished 30 ° chamfering 8.

Reaming, ream face, chamfer machining settle completion of processing at one go.

Above-described only is preferred embodiment of the present utility model; should be understood that; for a person skilled in the art; under the prerequisite that does not break away from the utility model structure; can also make some distortion and improvement; these also should be considered as protection domain of the present utility model, and these can not influence effect and practical applicability that the utility model is implemented.

Claims

1. a compound tool comprises cutter head and handle of a knife, it is characterized in that: described its central shaft of handle of a knife front end edge is provided with the blind hole with cutter head rear end form fit, has the locating hole of vertical connection blind hole on the described handle of a knife, and described locating hole place is equipped with screw; Described cutter head front end is provided with the bottoming drill of a band chip area, and the rear end is installed in the described blind hole; Wherein, also be provided with chamfered cutting edge on the described handle of a knife.

2. compound tool as claimed in claim 1, it is characterized in that: handle of a knife offers two described locating holes vertically successively.

3. compound tool as claimed in claim 1 is characterized in that: handle of a knife along central shaft to being symmetrically welded with two described chamfered cutting edges.

4. compound tool according to claim 1, it is characterized in that: the angle of chamfered cutting edge is 30 °.