CN203649487U

CN203649487U - Welding step polishing drill

Info

Publication number: CN203649487U
Application number: CN201320859412.1U
Authority: CN
Inventors: 朱胜雷
Original assignee: Wuxi Yutian Precision Tool Co Ltd
Current assignee: Wuxi Yutian Precision Tool Co Ltd
Priority date: 2013-12-24
Filing date: 2013-12-24
Publication date: 2014-06-18
Anticipated expiration: 2023-12-24

Abstract

The utility model relates to the technical field of hardware cutters, in particular to a welding step polishing drill. The welding step polishing drill comprises a cutter handle, wherein a cutter bit is arranged at the front end of the cutter handle; a cutter rod is arranged at the front end of the cutter bit; a tungsten steel blade is welded on the cutter bit; a detachable moulding polishing drill is arranged on the cuter rod. The welding step polishing drill is simple in structure, small-allowance cutting is carried out by the detachable moulding polishing drill, the end face cutting edge of the tungsten steel blade which is welded on the cutter bit can be repeatedly polished, the whole service life of the cutter is prolonged, the production cost is reduced, and the production efficiency is effectively improved.

Description

A kind of welding step polishing drill

Technical field

The utility model relates to hardware and cutting-tools technical field, particularly a kind of welding step polishing drill.

Background technology

Machining generally comprises car, plane, milling, brill, mill etc., various processing modes all have different processing technologys and special cutter, wherein common hardware and cutting-tools comprises lathe tool, milling cutter, planing tool, fluted drill etc., to meet different products and processing request.In the processing of hole, generally need to pass through the multiple working procedures such as punching, bore hole, chamfering, in process, need to change multiple cutter.The product higher in some required precisions adds man-hour, also needs hole to rough mill, and then improves machining accuracy with special polishing drill.In use, because the chipping allowance in hole is less, therefore Boring cutter sharpening damage is slow for existing polishing drill, and the wearing and tearing that end face processing produces are very fast, cause shifting to an earlier date of cutter changing, and the use cost of cutter is increased, and also affected production efficiency.

Utility model content

The purpose of this utility model is for the defect of prior art and deficiency, and a kind of compact conformation, easy to operate welding step polishing drill are provided.

For achieving the above object, the utility model is by the following technical solutions:

A kind of welding step polishing drill described in the utility model, comprises handle of a knife, and described handle of a knife front end is provided with cutter head, and cutter head front end is provided with knife bar, is welded with tungsten steel blade on cutter head, and knife bar is provided with dismountable plastic polishing and bores.

Further, on described tungsten steel blade, have outer rim sword and step sword, the axis parallel of outer rim sword and handle of a knife, step sword is vertical with the axial line of handle of a knife.

Further, between described tungsten steel blade, be provided with the chip area of V-arrangement.

Further, on the contact-making surface that described knife bar and plastic polishing bore, be equipped with connection burr, knife bar front end is provided with hold-doun nut.

The utility model beneficial effect is: the utility model is simple in structure, creep into the little surplus cutting of row by dismountable plastic polishing, the end face sword that welds tungsten steel blade on cutter head can repeat reconditioning, has extended the service life of cutter entirety, reduce production cost, effectively enhanced productivity.

Accompanying drawing explanation

Fig. 1 is Facad structure schematic diagram of the present utility model;

Fig. 2 is side structure schematic diagram of the present utility model.

In figure:

1, handle of a knife; 2, cutter head; 11, knife bar; 12, plastic polishing bores;

13, hold-doun nut; 21, tungsten steel blade; 22, chip area.

The specific embodiment

Below in conjunction with accompanying drawing, the utility model is further described.

A kind of welding step polishing drill described in the utility model, comprise handle of a knife 1, described handle of a knife 1 front end is provided with cutter head 2, on cutter head 2, be welded with tungsten steel blade 21, on tungsten steel blade 21, have for outer rim sword and step sword, the axis parallel of outer rim sword and handle of a knife 1, step sword is vertical with the axial line of handle of a knife 1, tungsten steel blade 21 arranges outer rim sword can processing step hole, step sword is for the treatment of the end face in hole, between tungsten steel blade 21, be provided with the chip area 22 of V-arrangement, on cutter head 2, be symmetrically welded two tungsten steel blades 21 and then between it, form the chip area 22 of V-arrangement, the iron filings that drilling produces are discharged via chip area 22.

Above-mentioned cutter head 2 front ends are provided with knife bar 11, knife bar 11 is provided with dismountable plastic polishing and bores 12, on the contact-making surface of knife bar 11 and plastic polishing brill 12, be equipped with connection burr, knife bar 11 front ends are provided with hold-doun nut 13, in the endoporus of plastic polishing brill 12, be provided with dimpled grain, and then coordinate and realize being connected radially with burr on knife bar 11, hold-doun nut 13 is for making plastic polishing bore 12 axial restraints on knife bar 11.

The above is only preferred embodiments of the present utility model, and the equivalence of doing according to structure, feature and principle described in the utility model patent claim therefore all changes or modifies, and is included in the utility model patent claim.

Claims

1. a welding step polishing drill, comprise handle of a knife (1), it is characterized in that: described handle of a knife (1) front end is provided with cutter head (2), cutter head (2) front end is provided with knife bar (11), on cutter head (2), be welded with tungsten steel blade (21), knife bar (11) is provided with dismountable plastic polishing and bores (12).

2. welding step polishing drill according to claim 1, is characterized in that: on described tungsten steel blade (21), have outer rim sword and step sword, and the axis parallel of outer rim sword and handle of a knife (1), step sword is vertical with the axial line of handle of a knife (1).

3. welding step polishing drill according to claim 1, is characterized in that: the chip area (22) that is provided with V-arrangement between described tungsten steel blade (21).

4. welding step polishing drill according to claim 1, is characterized in that: on the contact-making surface of described knife bar (11) and plastic polishing brill (12), be equipped with connection burr, knife bar (11) front end is provided with hold-doun nut (13).