CN203936444U - A kind of welding milling cutter - Google Patents

A kind of welding milling cutter Download PDF

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Publication number
CN203936444U
CN203936444U CN201420345231.1U CN201420345231U CN203936444U CN 203936444 U CN203936444 U CN 203936444U CN 201420345231 U CN201420345231 U CN 201420345231U CN 203936444 U CN203936444 U CN 203936444U
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China
Prior art keywords
chip
milling cutter
cutter
handle
knife
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CN201420345231.1U
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Chinese (zh)
Inventor
郑黄铮
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CHAOMEI PRECISION INDUSTRY (HUIZHOU) Co Ltd
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CHAOMEI PRECISION INDUSTRY (HUIZHOU) Co Ltd
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Abstract

A kind of welding milling cutter, comprise cutter head and handle of a knife, it is characterized in that, cutter head and handle of a knife are welded and fixed connection, on described cutter head, along it, be axially evenly provided with two groups of spiral grooves and two groups of spiral grooves oppositely intersect, in described two groups of spiral grooves, left-handed groove is chip-breaker, and dextrorotation groove is chip discharging grooves, and few one of chip breaking slot-number ratio chip discharging grooves number, described cutter head forms end top away from a side of described body.Implement welding milling cutter of the present utility model, produce bits tiny, chip removal is smooth and easy, and cutting resistance reduces, and performance improves, also corresponding raising of life-span simultaneously, and head and shank adopt and are welded to connect, and shank material can be reused, conservation.

Description

A kind of welding milling cutter
Technical field
The utility model relates to machining field, relates in particular to a kind of welding milling cutter.
Background technology
PCB milling cutter is the cutting tool in milling profile (moulding) process.By the profile of tooth difference of milling cutter, helical tooth cutter and rhombus tooth milling cutter be can be divided into, by the difference of chip removal direction, upper chip removal (dextrorotation groove is main cutting edge) milling cutter and lower chip removal (left-handed groove is main cutting edge) milling cutter are divided into again.Lower chip removal type rhombus tooth milling cutter is on the face of cylinder of milling cutter, to process left-handed chip discharging grooves (main cutting edge) and the dextrorotation groove chip-breaker that quantity does not wait, form the staggered cutter tooth of rhombus one by one, on each rhombus tooth, produce little and flat cutting edge, be mainly used in the processing of forming machine.
But common rhombus tooth milling cutter is all the design of few one of chip breaking slot-number ratio chip discharging grooves (forming the groove of main cutting edge) number, make it have some common problems, be mainly reflected in tooth (blade) distribution more loose, the facewidth is larger, causes cutting resistance larger, easy breaking, the smear metal producing in working angles is larger, easily produces chip removal bad, because cutting resistance is large, cause the vibrations of cutter and main shaft also large, the corresponding use life longevity is just shorter.
And common rhombus tooth milling cutter is generally to make with national strategy material wolfram steel, Construction integration own, cannot reclaim and reuse after damage, and this has caused a large amount of wastes of tungsten carbide raw material.
Utility model content
Technical problem to be solved in the utility model is, a kind of welding milling cutter is provided, and it is tiny that this milling cutter produces bits, and chip removal is smooth and easy, and cutting resistance reduces, performance improves, also corresponding raising of life-span simultaneously, head and shank adopt and are welded to connect, and shank material can be reused, conservation.
A kind of technical scheme that realizes above-mentioned purpose is: a kind of welding milling cutter, comprise cutter head and handle of a knife, wherein said cutter head and handle of a knife are welded and fixed connection, on described cutter head, along it, being axially evenly provided with two groups of spiral grooves and described two groups of spiral grooves oppositely intersects, in described two groups of spiral grooves, dextrorotation groove is chip discharging grooves, left-handed groove is chip-breaker, and few one of chip breaking slot-number ratio chip discharging grooves number, and described cutter head forms end top away from a side of described handle of a knife.
Preferably, described chip-breaker screw thread evenly arranges 6, and described chip discharging grooves screw thread evenly arranges 7.
As the improvement of technique scheme, described end top is along the fish scale-shaped that is shaped as of cutter head axis, and end top is fish tail shape.
Further, the helical angle angle of described chip-breaker is that 18 degree are to 22 degree; The helical angle angle of described chip discharging grooves is that 18 degree are to 22 degree.
Preferably, described tool bit diameter is that 1.26mm is to 1.3mm.
In an embodiment of the present utility model, the screw thread of described two groups of spiral grooves is long for 8mm is to 8.5mm.
In an embodiment of the present utility model, described handle of a knife diameter is that 3.16mm is to 3.175mm.
In an embodiment of the present utility model, described handle of a knife and cutter head along axis direction altogether long 38mm to 38.3mm.
Implement the utility model, there is following beneficial effect:
1, the chip breaking slot-number ratio chip discharging grooves number (main cutting edge) of welding milling cutter of the present utility model is few one, also just on original basis, reduced by a chip-breaker, blade is distributed closeer more even, cutting edge less (facewidth diminishes), its cutting resistance significantly reduces; Each cutting edge is stressed more even, and cutter vibrations are inhibited; Improved the chip removal ability of cutter, extended the service life of cutter, made processing more smooth and easy.
2, because this welding milling cutter is to make with national strategy material wolfram steel, in order to save material, head and handle designs are for being welded to connect, and shank wolfram steel can be reused, and so just can save 60 percent tungsten carbide raw material.
Accompanying drawing explanation
Fig. 1 is the structural representation of the utility model welding milling cutter.
Wherein: 1-cutter head, 2-handle of a knife, 3-chip-breaker, 4-chip discharging grooves, 5-holds top, c-tool bit diameter, d-screw thread is long, e-handle of a knife diameter, f-milling cutter is long, α-side angle.
The specific embodiment
For making the purpose of this utility model, technical scheme and advantage clearer, below in conjunction with accompanying drawing, the utility model is described in further detail.
A kind of welding milling cutter as shown in Figure 1, comprise cutter head 1 and handle of a knife 2, it is characterized in that, cutter head 1 and handle of a knife 2 are welded and fixed connection, on described cutter head 1, along it, be axially evenly provided with two groups of spiral grooves and two groups of spiral grooves oppositely intersect, in described two groups of spiral grooves, left-handed groove is chip-breaker 3, and dextrorotation groove is chip discharging grooves 4, and chip discharging grooves 4 numbers are than many one of chip-breaker 3 number, and described cutter head 1 forms end top 5 away from a side of described handle of a knife 2.
In an embodiment of the present utility model, described chip discharging grooves 4 screw threads evenly arrange 7, and described chip-breaker 3 screw threads evenly arrange 6.
Wherein, described end top 5 is along the fish scale-shaped that is shaped as of cutter head axis, and end top 5 is fish tail shape.
In an embodiment of the present utility model, the helical angle angle of described chip discharging grooves 4 is that 18 degree are to 22 degree.
In an embodiment of the present utility model, the helical angle angle of described chip-breaker 3 is that 18 degree are to 22 degree.
In an embodiment of the present utility model, described cutter head 1 diameter (c) is for 1.26mm is to 1.3mm.
In an embodiment of the present utility model, the screw thread of described two groups of spiral grooves long (d) is for 8mm is to 8.5mm.
In an embodiment of the present utility model, described handle of a knife 2 diameters (e) are for 3.16mm is to 3.175mm.
In an embodiment of the present utility model, described handle of a knife 1 is trapezoidal with cutter head 2 connecting portion vertical sectional shapes, and trapezoidal side edges and axis angle (α) are 15 degree.
In an embodiment of the present utility model, described handle of a knife 1 is grown (f) 38mm to 38.3mm with cutter head 2 altogether along axis direction.
As can be seen from the above embodiments, few one of the chip breaking slot-number ratio chip discharging grooves number (main cutting edge) of this welding milling cutter, distributes blade closeer more even, cutting edge less (facewidth diminishes), and its cutting resistance significantly reduces; Each cutting edge is stressed more even, and cutter vibrations are inhibited; Improved the chip removal ability of cutter, extended the service life of cutter, made processing more smooth and easy.Because this welding milling cutter is to make with national strategy material wolfram steel, in order to save material, head and handle designs are for being welded to connect, and shank material can be reused, and so just can save 60 percent tungsten carbide raw material.
Above disclosed is only a kind of preferred embodiment of the utility model, certainly can not limit with this interest field of the utility model, and the equivalent variations of therefore doing according to the utility model claim, still belongs to the scope that the utility model is contained.

Claims (9)

1. a welding milling cutter, comprise cutter head and handle of a knife, it is characterized in that, described cutter head and handle of a knife are welded and fixed connection, on described cutter head, along it, be axially evenly provided with two groups of spiral grooves and described two groups of spiral grooves and oppositely intersect, in described two groups of spiral grooves, dextrorotation groove is chip discharging grooves, and left-handed groove is chip-breaker, and few one of described chip breaking slot-number ratio chip discharging grooves number, described cutter head forms end top away from a side of described handle of a knife.
2. welding milling cutter as claimed in claim 1, is characterized in that: described chip-breaker screw thread evenly arranges 6, and described chip discharging grooves screw thread evenly arranges 7.
3. welding milling cutter as claimed in claim 2, is characterized in that: described end top is along the fish scale-shaped that is shaped as of cutter head axis, and end top is fish tail shape.
4. welding milling cutter as claimed in claim 3, is characterized in that: the helical angle angle of described chip-breaker is that 18 degree are to 22 degree.
5. welding milling cutter as claimed in claim 3, is characterized in that: the helical angle angle of described chip discharging grooves is that 18 degree are to 22 degree.
6. welding milling cutter as claimed in claim 1, is characterized in that: described tool bit diameter is that 1.26mm is to 1.3mm.
7. the welding milling cutter as described in claim 1-5 any one, is characterized in that: the screw thread of described two groups of spiral grooves is long for 8mm is to 8.5mm.
8. welding milling cutter as claimed in claim 6, is characterized in that: the diameter of described handle of a knife is that 3.16mm is to 3.175mm.
9. welding milling cutter as claimed in claim 8, is characterized in that: described handle of a knife and cutter head along axis direction altogether long 38mm to 38.3mm.
CN201420345231.1U 2014-06-26 2014-06-26 A kind of welding milling cutter Active CN203936444U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201420345231.1U CN203936444U (en) 2014-06-26 2014-06-26 A kind of welding milling cutter

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201420345231.1U CN203936444U (en) 2014-06-26 2014-06-26 A kind of welding milling cutter

Publications (1)

Publication Number Publication Date
CN203936444U true CN203936444U (en) 2014-11-12

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CN (1) CN203936444U (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWI624319B (en) * 2015-04-01 2018-05-21 Composite tungsten carbide tool manufacturing method
CN108405946A (en) * 2018-05-17 2018-08-17 大连理工大学 Inhibit micro- tooth row cloth design method of the micro- tooth milling cutter cutting edge edge breakage of multiple-cutting-edge

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWI624319B (en) * 2015-04-01 2018-05-21 Composite tungsten carbide tool manufacturing method
CN108405946A (en) * 2018-05-17 2018-08-17 大连理工大学 Inhibit micro- tooth row cloth design method of the micro- tooth milling cutter cutting edge edge breakage of multiple-cutting-edge

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