CN203843257U

CN203843257U - Flat slot milling cutter for mould

Info

Publication number: CN203843257U
Application number: CN201420171266.8U
Authority: CN
Inventors: 朱松林; 廖志雄
Original assignee: Zhongshan Torch Development Zone Garden Tool Factory (general Partnership)
Current assignee: Zhongshan Torch Development Zone Garden Tool Factory (general Partnership)
Priority date: 2014-04-10
Filing date: 2014-04-10
Publication date: 2014-09-24
Anticipated expiration: 2024-04-10

Abstract

The utility model discloses a flat slot milling cutter for a mould. The flat slot milling cutter comprises a cylindrical cutter bar and a cutter head, and is characterized in that the cutter head comprises a cutter neck part and a cutter mouth part, wherein a location basal plane is arranged on the cutter head; a front cutter face is arranged on the cutter mouth part; a plane is arranged at the end of the cutter mouth part and is crossed with the front cutter face; the crossing line of the plane and the front cutter face forms a main cutting edge of the cutter and is a straight line; the plane is crossed with a circular arc face of the cutter neck surface; a circular arc line formed by crossing the circular arc face with the front cutter face forms a first auxiliary cutting edge of a cutter; a joint of the main cutting edge and the first auxiliary cutting edge forms a sharp angle; a first top rear cutting face is arranged on the cutter nozzle part; a crossing part of the plane and the first top rear cutter face is transition circular arc; a circular arc line formed by crossing the transition circular arc with the front cutter face forms a second cutting edge of the cutter.

Description

A kind of mould milling cutter of rising as high as the banks

Technical field

The utility model relates to a kind of milling cutter, particularly a kind of mould milling cutter of rising as high as the banks.

Background technology

Some commodity in people's daily life (as Gel bottle, medicinal aerosol bottle etc.) all can have a spray valve, when pressing valve switch, will from the valve nozzle of spray valve, spray fog-like liquid, and the switch of spray valve is controlled by valve rod conventionally, the valve rod of spray valve is to pass through mold injection molding, the precision of mould is high, and the precision of the valve rod injecting is better.

At present, processing to this kind of mould is cut into master with line, but for some structures in mould (as in ad-hoc location with the groove of chamfering) need to repeatedly process, and process length consuming time (15 left and right of processing in general one day), and precision is not high, causes qualification rate low.

Summary of the invention

In order to overcome the deficiencies in the prior art, the utility model provides the milling cutter of rising as high as the banks in a kind of processing mold, not only consuming time short, precision is high, and qualification rate is high.

The utility model solves the technical scheme that its technical problem adopts:

A kind of mould milling cutter of rising as high as the banks, comprise cylinder shape knife rod and cutter head, it is characterized in that: described cutter head comprises cutter neck and cutter mouth, cutter head is provided with a location basal plane, cutter mouth is provided with rake face, the end of cutter mouth is provided with a plane, this plane and rake face intersect, and the intersection of described plane and rake face forms the main cutting edge of cutter, and this intersection is a straight line, the arc surface on described plane and cutter neck surface intersects, and this arc surface and rake face intersect the first front cutting edge that the circular arc line forming forms cutter, and main cutting edge and the first front cutting edge junction form a wedge angle, described cutter mouth is provided with knife face behind the first top, behind described plane and this first top, knife face intersection is a transition arc, this transition arc and rake face intersect the second front cutting edge that the circular arc line forming forms cutter.

Described cutter head is provided with knife face after the first neck, and after described rake face and this first neck, knife face intersects.

Described cutter head is provided with knife face after the second neck, and after described the first neck, after knife face and this second neck, knife face intersects.

Described cutter head is provided with knife face behind the second top, and behind described the first top, behind knife face and this second top, knife face intersects.

Knife face and the angle [alpha] of locating basal plane formation, 90 behind described the first top ^o< α < 98 ^o.

The angle beta that behind described the second top, knife face and location basal plane form, 15 ^o< β < 25 ^o.

Described knife bar and cutter neck intersection all adopt arc transition.

The plane at described main cutting edge place and knife bar central axis distance are h, 0 < h < 0.02mm.

The beneficial effects of the utility model are: the utility model discloses a kind of mould milling cutter of rising as high as the banks, comprise cylinder shape knife rod and cutter head, described cutter head comprises cutter neck and cutter mouth, cutter head is provided with a location basal plane, cutter mouth is provided with rake face, the end of cutter mouth is provided with a plane, this plane and rake face intersect, and the intersection of described plane and rake face forms the main cutting edge of cutter, and this intersection is a straight line, the arc surface on described plane and cutter neck surface intersects, and this arc surface and rake face intersect the first front cutting edge that the circular arc line forming forms cutter, and main cutting edge and the first front cutting edge junction form a wedge angle, described cutter mouth is provided with knife face behind the first top, behind described plane and this first top, knife face intersection is a transition arc, this transition arc and rake face intersect the second front cutting edge that the circular arc line forming forms cutter, in said structure, main cutting edge, the first front cutting edge can time processing go out three planes that type is different from the second front cutting edge, one-shot forming, avoided the error that in repeatedly processing, bring die change position, guarantee the precision of working position, and processing (is processed 100 left and right for general one day) fast, qualification rate is high.

Accompanying drawing explanation

Below in conjunction with drawings and Examples, the utility model is further illustrated.

Fig. 1 is overview of the present utility model;

Fig. 2 is the overview of the utility model other direction;

Fig. 3 is schematic top plan view of the present utility model;

Fig. 4 is the enlarged diagram of tool bit part.

The specific embodiment

Referring to figs. 1 through Fig. 3, the utility model discloses a kind of mould milling cutter of rising as high as the banks, comprise cylinder shape knife rod 1 and cutter head 2, described cutter head 2 comprises cutter neck 3 and cutter mouth 4, cutter neck 3 and cutter mouth 4 integral body roughly become L shape, cutter head 2 is provided with a location basal plane 5, when the fixture of Cutting tool installation manner in plant equipment, the fixed cutting tool by pin dieback location basal plane 5, prevent that cutter from rotating relative to fixture, cutter mouth 4 is provided with rake face 6, the end of cutter mouth 4 is provided with a plane 7, this plane 7 intersects with rake face 6, and the intersection of described plane 7 and rake face 6 forms the main cutting edge 8 of cutter, and this intersection is a straight line, described plane 7 and one intersects with respect to plane 7 and the arc surface of cutter neck concave surface, this arc surface radius is 0.5mm, and this arc surface and rake face 6 intersect the first front cutting edge 9 that the circular arc line forming forms cutter, and main cutting edge 8 and the first front cutting edge 9 junctions form a wedge angle 16, this structure can be poured out circular arc when rising as high as the banks to mould milling, cutter head 2 is provided with knife face 12 behind the first top, described plane 7 is a transition arc 14 with these rear knife face 12 intersections, the first top, this transition arc 14 intersects with rake face 6 the second front cutting edge 15 that the circular arc line forming forms cutter, can be at the bottom surface one side rounding of rising as high as the banks when milling is risen as high as the banks by the second front cutting edge 15, and this fillet is discrete with the bottom surface of rising as high as the banks.

As shown in the figure, cutter head 2 is provided with knife face 10 after the first neck, and after described rake face 6 and this first neck, knife face 10 intersects, and described cutter head 2 is provided with knife face 11 after the second neck, and after described the first neck, after knife face 10 and this second neck, knife face 11 intersects; Described cutter head 2 is provided with knife face 13 behind the second top, and behind described the first top, knife face 12 intersects with the rear knife face 13 in this second top.The design of said structure, can guarantee that cutter head 2 has enough intensity, can avoid again other cutter head 2 parts except main cutting edge 8 and the friction between machined surface, prevent heating, and in cutter rotary course, the knife face of above-mentioned inclination can have certain extruding force to smear metal, and smear metal can be detained, thereby discharge easily, guaranteed that chip removal is unobstructed.

And, further design, the angle [alpha] that behind the first top, knife face 12 and location basal plane 5 form, 90 ^o< α < 98 ^o; The angle beta that behind described the second top, knife face 13 and location basal plane 5 form, 15 ^o< β < 25 ^o, the design of above-mentioned angle can be played chip removal effect well, does not affect again the rigidity of cutter head 2.

The radius r of described plane 7,0.4 mm < β < 0.5mm, groove width to be processed in this size and mould adapts.

As further preferred structure, knife bar 1 all adopts arc transition with cutter neck 3 intersections, guarantees the rigidity of knife bar 1 and cutter neck junction; The plane at described main cutting edge 8 places and knife bar 1 central axis distance are h, and 0 mm < h < 0.02mm, guarantees cutting edge roundness cutting force towards processed products.

Milling cutter of the present utility model is that wolfram steel or tool steel material are made.According to the characteristic of machined material, can also carry out vacuum plating (as nitrogenize is admired or nitrogen calorize is admired etc.), the service life of further improving cutter to cutter.

A kind of mould above the utility model embodiment the being provided milling cutter of rising as high as the banks, be described in detail, applied specific case herein principle of the present utility model and embodiment are set forth, the explanation of above embodiment is just for helping to understand method of the present utility model and core concept thereof; , for one of ordinary skill in the art, according to thought of the present utility model, all will change in specific embodiments and applications, in sum, this description should not be construed as restriction of the present utility model meanwhile.

Claims

1. the mould milling cutter of rising as high as the banks, comprise cylinder shape knife rod and cutter head, it is characterized in that: described cutter head comprises cutter neck and cutter mouth, cutter head is provided with a location basal plane, cutter mouth is provided with rake face, the end of cutter mouth is provided with a plane, this plane and rake face intersect, and the intersection of described plane and rake face forms the main cutting edge of cutter, and this intersection is a straight line, the arc surface on described plane and cutter neck surface intersects, and this arc surface and rake face intersect the first front cutting edge that the circular arc line forming forms cutter, and main cutting edge and the first front cutting edge junction form a wedge angle, described cutter mouth is provided with knife face behind the first top, behind described plane and this first top, knife face intersection is a transition arc, this transition arc and rake face intersect the second front cutting edge that the circular arc line forming forms cutter.

2. a kind of mould according to claim 1 milling cutter of rising as high as the banks, is characterized in that: described cutter head is provided with knife face after the first neck, and after described rake face and this first neck, knife face intersects.

3. a kind of mould according to claim 2 milling cutter of rising as high as the banks, is characterized in that: described cutter head is provided with knife face after the second neck, and after described the first neck, after knife face and this second neck, knife face intersects.

4. a kind of mould according to claim 1 milling cutter of rising as high as the banks, is characterized in that: described cutter head is provided with knife face behind the second top, and behind described the first top, behind knife face and this second top, knife face is crossing.

5. a kind of mould according to claim 1 milling cutter of rising as high as the banks, is characterized in that: the angle [alpha] that behind described the first top, knife face and location basal plane form, 90 ^o< α < 98 ^o.

6. a kind of mould according to claim 4 milling cutter of rising as high as the banks, is characterized in that: the angle beta that behind described the second top, knife face and location basal plane form, 15 ^o< β < 25 ^o.

7. a kind of mould according to claim 1 milling cutter of rising as high as the banks, is characterized in that: described knife bar and cutter neck intersection all adopt arc transition.

8. a kind of mould according to claim 1 milling cutter of rising as high as the banks, is characterized in that: the plane at described main cutting edge place and knife bar central axis distance are h, 0 < h < 0.02mm.