CN203235979U

CN203235979U - Boring tool for completing hole rough machining and hole finish machining once

Info

Publication number: CN203235979U
Application number: CN 201320152883
Authority: CN
Inventors: 刘俊超
Original assignee: SHANGHAI NEW YAMADA PRECISION TOOLS Co Ltd
Current assignee: SHANGHAI NEW YAMADA PRECISION TOOLS Co Ltd
Priority date: 2013-03-31
Filing date: 2013-03-31
Publication date: 2013-10-16
Anticipated expiration: 2023-03-31

Abstract

The utility model relates to the field of tool-bit-changeable tools used for turning lathes or boring machines, in particular to a boring tool for completing hole rough machining and hole finish machining once. The boring tool for completing the hole rough machining and the hole finish machining once comprises a front tool rest (11), a rear tool rest (12) and a shank (2), and is characterized by also comprising a front tool bit (31) and a rear tool bit (32), wherein the front tool bit (31) is fixedly arranged on the outer side face of the front tool rest (11); the rear tool bit (32) is fixedly arranged on the outer side face of the rear tool rest (12); the distance from the endpoint of the outer end of the rear tool bit (32) to the central axis of the rear tool rest (12) is bigger than the distance from the endpoint of the outer end of the front tool bit (31) to the central axis of the front tool rest (11); the rear part of the shank (2) is in a circular truncated cone shape; and the rear end face of the shank (2) is provided with a screw hole (21). The boring tool for completing the hole rough machining and the hole finish machining once, provided by the utility model, is high in machining precision and low in cost and is easy to change.

Description

Once finish the boring cutter cutter in Roughing and fine machining hole

Technical field

The utility model relates to the cutter field that interchangeable cutter head is arranged for lathe or boring machine, is specially a kind of boring cutter cutter for once finishing the Roughing and fine machining hole.

Background technology

Hole processing is processing request common in the machining, in order to improve crudy, generally needs can finish through roughing and fine finishining two procedures, this method need repeatedly install cutter additional, length consuming time, and be difficult for guaranteeing machining accuracy, increase processing cost, limited the scope of application.

The utility model content

In order to overcome the defective of prior art, high, the easy replacing of a kind of machining accuracy, cutting tool cheaply are provided, the utility model discloses a kind of boring cutter cutter of once finishing the Roughing and fine machining hole.

The utility model reaches goal of the invention by following technical solution:

A kind of boring cutter cutter of once finishing the Roughing and fine machining hole, comprise front rest, back tool rest and handle, front rest, back tool rest and handle are connected and are connected and three's central axes, it is characterized in that: also comprise front cutter head and rear blade, front cutter head is equilateral triangle, front cutter head is fixed on the lateral surface of front rest, and the front end of front cutter head is vertical with the central axis of front rest; Rear blade is rhombus, and rear blade is fixed on the lateral surface of back tool rest, and the front end of rear blade is vertical with the central axis of back tool rest; The distance of the outer end end-point distances back tool rest central axis of rear blade is greater than the distance of the outer end end-point distances front rest central axis of front cutter head; The rear portion of handle is truncated cone-shaped, has screw on the rear end face of handle.

The described boring cutter cutter of once finishing the Roughing and fine machining hole is characterized in that: the distance of the outer end end-point distances back tool rest central axis of rear blade be not more than front cutter head outer end end-point distances front rest central axis distance 110%.

When the utility model uses, the utility model is fixed on the boring machine, front cutter head is selected roughing tool, rear blade is selected finishing tool, can in time processing, finish roughing and fine finishining, and can finish simultaneously chamfering process, greatly improve working (machining) efficiency and crudy.

The beneficial effects of the utility model are: machining accuracy is high, easily changes low cost.

Description of drawings

Fig. 1 is front view of the present utility model.

The specific embodiment

Below further specify the utility model by specific embodiment.

Embodiment 1

A kind of boring cutter cutter of once finishing the Roughing and fine machining hole comprises front rest 11, back tool rest 12, handle 2, front cutter head 31 and rear blade 32, and as shown in Figure 1, concrete structure is:

Front rest 11, back tool rest 12 are connected with handle successively and are connected and three's central axes;

Front cutter head 31 is equilateral triangle, and front cutter head 31 is fixed on the lateral surface of front rest 11, and the front end of front cutter head 31 is vertical with the central axis of front rest 11;

Rear blade 32 is rhombus, and rear blade 32 is fixed on the lateral surface of back tool rest 12, and the front end of rear blade 32 is vertical with the central axis of back tool rest 12;

The distance of outer end end-point distances back tool rest 12 central axis of rear blade 32 is greater than the distance of outer end end-point distances front rest 11 central axis of front cutter head 31;

The rear portion of handle 2 is truncated cone-shaped, has screw 21 on the rear end face of handle 2.

In the present embodiment, the distance of outer end end-point distances back tool rest 12 central axis of rear blade 32 be front cutter head 31 outer end end-point distances front rest 11 central axis distances 108%.

When the present embodiment uses, the present embodiment is fixed on the boring machine, front cutter head 31 is selected roughing tool, and rear blade 32 is selected finishing tool, can finish roughing and fine finishining in time processing.

Claims

1. boring cutter cutter of once finishing the Roughing and fine machining hole, comprise front rest (11), back tool rest (12) and handle (2), front rest (11), back tool rest (12) are connected 2 with handle) connect successively and three's central axes, it is characterized in that: also comprise front cutter head (31) and rear blade (32)

Front cutter head (31) is equilateral triangle, and front cutter head (31) is fixed on the lateral surface of front rest (11), and the front end of front cutter head (31) is vertical with the central axis of front rest (11);

Rear blade (32) is rhombus, and rear blade (32) is fixed on the lateral surface of back tool rest (12), and the front end of rear blade (32) is vertical with the central axis of back tool rest (12);

The distance of outer end end-point distances back tool rest (12) central axis of rear blade (32) is greater than the distance of outer end end-point distances front rest (11) central axis of front cutter head (31);

The rear portion of handle (2) is truncated cone-shaped, has screw (21) on the rear end face of handle (2).

2. the boring cutter cutter of once finishing the Roughing and fine machining hole as claimed in claim 1 is characterized in that: the distance of outer end end-point distances back tool rest (12) central axis of rear blade (32) be not more than front cutter head (31) outer end end-point distances front rest (11) central axis distance 110%.