CN201275638Y

CN201275638Y - Blade of whirlwind milling cutter

Info

Publication number: CN201275638Y
Application number: CNU2008201597240U
Authority: CN
Inventors: 孙秋云
Original assignee: Nanjing Caiyun Machinery & Electronic Manufacturing Co Ltd
Current assignee: Nanjing Caiyun Machinery & Electronic Manufacturing Co Ltd
Priority date: 2008-10-17
Filing date: 2008-10-17
Publication date: 2009-07-22
Anticipated expiration: 2018-10-17

Abstract

The utility model provides a whirlwind milling cutter blade of which one cutting edge of a cutter blade can be replaced after being abraded without aligning the cutter again. The cutter blade comprises a base body and the cutting edges which are arranged on the base body. Two or more cutting edges are provided and are uniformly distributed along the circumferential direction of the base body; and a connecting part which is connected with a cutter disc of a whirlwind milling cutter is arranged on the base body along the axial line of the base body.

Description

The blade of Whirlwind milling cutter

Technical field

The utility model relates to the blade of Whirlwind milling cutter.

Technical background

It is high-speed milling screw mandrel, the endless screw apparatus supporting with engine lathe that whirlwind mills, and it is with the carbide alloy shaping blades that is contained on the high speed rotary head, mills out screw mandrel, the worm processing method of profile of tooth from workpiece.Fast because of its milling speed height (speed reaches 400m/min) working (machining) efficiency, and adopt compressed air to carry out the chip removal cooling, in the process cutting splash gains the name as whirlwind-whirlwind mills.Whirlwind mills can be realized doing cutting, heavily loaded cutting, difficult-to-machine material and superhigh-speed cutting, and consumption of power is little, and surface roughness can reach Ra0.8 μ m.The lathe spindle rotating speed is slow, so machine tool motion precision height, dynamic stability are good, is a kind of advanced person's Screw thread process method.

Existing Whirlwind milling cutter comprises cutterhead, is fixed on the circumferential a plurality of blades of cutterhead, and blade has a cutting edge; Its cutterhead and blade are one.For Whirlwind milling cutter is carried out sharpening, need special sharpening lathe, this lathe very expensive (about 300,000 yuan).After the blade cut sharpening decreases, promptly to reduce production efficiency to its reconditioning or replacing.The more important thing is that the Whirlwind milling cutter behind sharpening or the replacing blade also need tool setting again, and the tool setting process is very complicated when loading onto the cutterhead use, also can not reach sharpening or tool changing preceding size and form and position tolerance.

Summary of the invention

Be replaceable and need not the blade of the Whirlwind milling cutter of tool setting after the cutting sharpening that the purpose of this utility model provides a kind of blade decreases.

The blade of this Whirlwind milling cutter comprises matrix, the cutting edge that sharpening goes out on the matrix; Described cutting edge is two or more, be distributed on matrix circumferentially, along the axis of matrix the connecting portion that is connected with the cutterhead of Whirlwind milling cutter is set on matrix.

Blade of the present utility model has a plurality of cutting edges, and when cutting edge wearing and tearing or damage, rotating this blade around connecting portion is that replaceable another cutting edge works on, and need not tool setting, to improve working (machining) efficiency.

As improvement, that blade has is identical with cutting edge quantity, be distributed on the circumferential locating surface of blade.Contact with corresponding supporting surface on the cutterhead by locating surface, the cutting force that blade is subjected to acts on the cutterhead by locating surface, has guaranteed the reliably working of blade.

Best described blade has three cutting edges, and the mutual angle of three locating surfaces is 60 degree, and perhaps described blade has four cutting edges, and the angle of adjacent positioned face is 90 degree; The blade of three or four cutting blade structures like this is easy to processing, and during blade work stressed evenly.

Preferably connecting portion can pass bolt with the hole on the cutterhead that blade is fixed on Whirlwind milling cutter for what the central part at matrix had.Pass this hole by bolt, blade can be detachably connected on the cutterhead.

Description of drawings

Fig. 1 is the front view of the blade of embodiment 1.

Fig. 2 is the vertical view of Fig. 2.

Fig. 3 is the stereogram of embodiment 1.

Fig. 4 is the blade of embodiment 1 and the partial schematic diagram that is connected of cutterhead.

Fig. 5 is the schematic diagram of cutterhead.

Fig. 6 is a kind of blade front view of embodiment 2.

Fig. 7 is the left view of Fig. 6.

Specific embodiments

The present invention is further detailed explanation below in conjunction with the drawings and specific embodiments.

Embodiment 1

Referring to Fig. 1-5, Whirlwind milling cutter comprises cutterhead 1, is arranged on the circumferential a plurality of blades 2 that form with the carbide alloy sharpening of cutterhead.

Blade 2 comprises matrix 3 and is distributed on three circumferential cutting edges 4 of matrix.There is a locating surface 5 at the back side of each cutting edge.Have at the central part of matrix and can pass bolt 6 with the hole 7 on the cutterhead that blade is fixed on Whirlwind milling cutter.Blade is connected by 6 one-tenth dismountings of bolt with cutterhead.

Circumferentially evenly be provided for placing 12 recesses 8 of blade at cutterhead, the inboard of recess has three supporting surfaces 9 that contact with the locating surface of blade respectively, and the bottom surface of recess contacts with blade one end face.The mutual angle of three locating surfaces (or supporting surface) is 60 degree.

In the utility model, each blade has 3 cutting edges, and when cutting edge wearing and tearing or damage, unclamping bolt 6 these blades of rotation is that replaceable another cutting edge works on, to improve working (machining) efficiency.

The profile of tooth that a plurality of blade cut are come out is more accurate, and surface smoothness is relatively good.Because of knife number is many, so can adopt bigger cutting data, production efficiency obviously improves.

Embodiment 2

Referring to the square blade shown in Fig. 6,7, it has four cutting edge 2-5, be distributed on matrix 1 circumferentially, can pass bolt with the hole on the cutterhead that blade is fixed on Whirlwind milling cutter along the axis of matrix being provided with on the matrix.

Claims

1. the blade of Whirlwind milling cutter comprises matrix, and the cutting edge that sharpening goes out on the matrix is characterized in that: described cutting edge is two or more, be distributed on matrix circumferentially, along the axis of matrix the connecting portion that is connected with the cutterhead of Whirlwind milling cutter is set on matrix.

2. according to the described blade of claim 1, it is characterized in that: blade also have identical with cutting edge quantity, be distributed on the circumferential locating surface of blade.

3. according to the described blade of claim 2, it is characterized in that: blade has three or four cutting edges.

4. according to the described blade of claim 2, it is characterized in that: described connecting portion can pass bolt with the hole on the cutterhead that blade is fixed on Whirlwind milling cutter for what the central part at matrix had.