CN200995297Y

CN200995297Y - Chamfer-angle cutter of primary-formative multi-aperture band

Info

Publication number: CN200995297Y
Application number: CN 200720034359
Authority: CN
Inventors: 吴建凯; 纪逸民; 郑德典; 郑文炜
Original assignee: QUANZHOU YUANXIN ELECTRONIC EQUIPMENT MECHANICAL MANUFACTURING Co Ltd
Current assignee: FUJIAN OPTICAL MICRO-ELECTRONICS SCIENCE & TECHNOLOGY CO., LTD.
Priority date: 2007-02-07
Filing date: 2007-02-07
Publication date: 2007-12-26
Anticipated expiration: 2017-02-07

Abstract

A multi-aperture cutting tool of one-step forming and with chamfer comprises a toolholder of drill at the top, a drill body at the central part and a drill at the bottom. The utility model is characterized in that the drill body comprises a first drill body, a second drill body and a third drill body with incremental diameter from bottom to top, the diameter of the first drill body is same to that of drill, the ring-shaped surface at the bottom of the second drill body is distributed with milling blade and equipped with a chamfer blade connected to the first drill body, and the ring-shaped surface at the bottom of the third drill body is distributed with a chamfer blade connected to the second drill body.

Description

Formed Chamfering Tool With Multi-Aperture

Technical field

The utility model relates to a kind of mechanical processing machine cutter, particularly a kind of Formed Chamfering Tool With Multi-Aperture.

Background technology

The at present general drilling tool that opens all over use mainly is a fluted drill, and this drill bit is made up of drill bit handle of a knife, bit body and drill bit, and the diameter of existing bit body and drill bit is identical, can only process identical hole, aperture up and down.When needs processing with one heart and during the shoulder hole of different-diameter, then to use the bit bore of minor diameter earlier, after having bored the hole of minor diameter, boring reaming on the good aperture with large diameter drill bit again, expanding to become with one heart and the shoulder hole of different-diameter, because of the head of major diameter drill bit has tapering, the part that expands into the ladder macropore also has tapering, needs sometimes with smooth this tapering part of forsner bit, in order to remove the burr of hole outer ledge, also need to use the file filing, perhaps carry out chamfering.Therefore there is following shortcoming with this spiral bit converted products: 1, complex procedures, efficient is low; 2, process often, concentricity is poor, precision is low, can not satisfy the needs of high accuracy product.

Summary of the invention

Technical problem to be solved in the utility model is, overcomes the shortcoming of prior art, and the Formed Chamfering Tool With Multi-Aperture that a kind of manufacturing procedure is simple, working (machining) efficiency is high is provided.

The technical scheme that its technical problem that solves the utility model adopts is as follows: a kind of Formed Chamfering Tool With Multi-Aperture, have the drill bit handle of a knife on top, the bit body at middle part and the drill bit of bottom, it is characterized in that: bit body comprises first bit body, second bit body and the 3rd bit body that diameter from bottom to up increases progressively, first bit body equates with bit diameter, be distributed with cutter blade on the second bit body lower end ring surface, and have the chamfering blade that connects first bit body, be distributed with the chamfering blade that connects second bit body on the 3rd bit body lower end ring surface.

The beneficial effects of the utility model are as follows: the bit body of this cutter is the inverted steps shape, and be provided with to organize blades more, the size of bit body is followed according to need bore the size of system shoulder hole and is determined that such cutter can process at one time this shoulder hole, and finishes the chamfer machining to the hole simultaneously, operation is simple, one-shot forming need not more bit change and rose reamer, has saved process time greatly, reduce labour intensity, improved production efficiency; Owing to be one-shot forming, therefore good concentricity, the precision height of processing can satisfy the needs of high accuracy product.

Description of drawings

Fig. 1 is the utility model Formed Chamfering Tool With Multi-Aperture overall structure schematic diagram.

The specific embodiment

With reference to the accompanying drawings and in conjunction with the embodiments the utility model is described in detail.But the utility model is not limited to given embodiment.

Among the embodiment as shown in Figure 1, the utility model Formed Chamfering Tool With Multi-Aperture, have the drill bit handle of a knife 3 on top, the bit body 2 at middle part and the drill bit 1 of bottom, described bit body 2 comprises first bit body 21, second bit body 22 and the 3rd bit body 23 that diameter from bottom to up increases progressively, first bit body 21 and drill bit 1 equal diameters, be distributed with cutter blade 5 on second bit body, the 22 lower end ring surfaces, and have and be distributed with the chamfering blade 7 that connects second bit body on chamfering blade 6, the three bit bodys 23 lower end ring surfaces that connect first bit body 21.

Claims

1, Formed Chamfering Tool With Multi-Aperture, have the drill bit handle of a knife on top, the bit body at middle part and the drill bit of bottom, it is characterized in that: bit body comprises first bit body, second bit body and the 3rd bit body that diameter from bottom to up increases progressively, first bit body equates with bit diameter, be distributed with cutter blade on the second bit body lower end ring surface, and have the chamfering blade that connects first bit body, be distributed with the chamfering blade that connects second bit body on the 3rd bit body lower end ring surface.