CN201049407Y - Spiral groove staggered tooth comb milling cutter - Google Patents
Spiral groove staggered tooth comb milling cutter Download PDFInfo
- Publication number
- CN201049407Y CN201049407Y CN 200720101023 CN200720101023U CN201049407Y CN 201049407 Y CN201049407 Y CN 201049407Y CN 200720101023 CN200720101023 CN 200720101023 CN 200720101023 U CN200720101023 U CN 200720101023U CN 201049407 Y CN201049407 Y CN 201049407Y
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- cutter
- cutting
- tooth
- cutters
- milling cutter
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Abstract
The utility model relates to a cutter for mechanical cutting and machining, in particular to a spiral groove interlocking teeth and combing teeth milling cutter which solves the problems that the prior combing teeth milling cutter has too much noise, unstable workpiece machining quality and low durability of the cutter caused by the disadvantages of the structure; the utility model comprises a cutter body; a plurality of sets of cutters are arranged on the cutter body; a plurality of gear profiles are distributed on each set of cutters; the sloping sides of the top and two side end faces of the gear profiles are cutting edges; a chip flute is formed between two adjacent sets of cutters; the normal rake angle alpha in the tool nose of the cutting edge of the top of the gear profiles is + 5 degrees; the chip flutes are distributed on the cutter body spirally; the gear profiles on two arbitrary adjacent sets of cutters are in a staggered form. The structure effectively improves the stress condition of the cutter in the cutting process, has smooth cutting and gliding scrap-discharging, reduces noise, increases the machining quality of workpiece surface, reduces the cutter abrasion, improves production efficiency by 20 percent and has simple structure, reasonable design and certain promotional value in the mechanical cutting and machining field.
Description
Technical field
The utility model relates to a kind of cutter that is used for machine cut processing, is specially helicla flute side set broach milling cutter.
Background technology
The broach milling cutter is one of cutter commonly used that is used in the machine-building machining, the broach milling cutter of existing structure, as shown in Figure 2, the chip pocket of cutter hub is the straight trough that parallels to the axis, penetration of a cutting tool stripping fork moment sudden change in the process, belong to and be interrupted cutting, therefore impulsive force is big, and the irregular cutter that easily shakes of penetration of a cutting tool produces bigger noise, finished surface has chatter mark, the easy tipping of cutter; The anterior angle α of cutter is 0 °, makes cutting edge not sharp, occupies the extrusion process than great share in the working angles, and radial-thrust force is big, and tool wear is fast, and knife bar easily produces strain, the machined surface injustice; And the tooth pitch L between adjacent profile of tooth is identical with the workpiece tooth pitch, and cutter tooth distributes very close, and the number of teeth of penetration of a cutting tool is many in the unit length, and radial-thrust force is big.In sum, there is following shortcoming in the broach milling cutter of existing structure in actual use: 1. noise is big; 2. workpiece crudy instability; 3. tool life is low.
Summary of the invention
The utility model in order to solve existing broach milling cutter since exist the said structure defective cause noise greatly, problem such as workpiece crudy instability and tool life be low, a kind of helicla flute side set broach milling cutter is provided.
The utility model is to adopt following technical scheme to realize: helicla flute side set broach milling cutter, comprise cutter hub, cutter hub is provided with some groups of cutters, be distributed with plurality of tooth-shaped on every group of cutter, the hypotenuse of profile of tooth top and both sides end face is respectively cutting edge, form chip pocket between the two adjacent groups cutter, the normal rake α of point of a knife place of profile of tooth top cutting edge is+3 °～+ 7 °.At mechanical field, anterior angle is the angle between rake face and the basal plane, anterior angle increases, can make blade sharp, the plastic deformation of cutting lay and frictional resistance reduce during cutting, and cutting force and heat in metal cutting reduce, thereby make cutting more laborsaving, and reduced the wearing and tearing of cutting edge, thus anterior angle α described in the utility model be preferably+5 °.
Chip pocket described in the utility model is shape distribution in the shape of a spiral on cutter hub, cutting edge is cut workpiece gradually in the working angles like this, impact little, working angles is steady, can significantly improve the depth of cut and the speed of milling cutter, reduces the situation that cutting edge bursts apart, and the iron filings that cutting the time is produced can be discharged smoothly, and can not be deposited in the chip pocket, the angle β between chip pocket described in the utility model and the cutter hub axis is 28 °～32 °, is preferably 30 °.
Profile of tooth on any two adjacent groups cutter described in the utility model is staggered and arranges, tooth pitch on every group of cutter between adjacent profile of tooth is the twice of workpiece tooth pitch, profile of tooth on existing one group of cutter is staggered to be distributed on two groups of cutters, make the number of teeth that participates in cutting on the same cutting face reduce half, resistance to cutting also reduces half.
Compared with prior art, the utility model adopt the point of a knife normal rake α of place for+5 °, chip pocket on the cutter hub in the shape of a spiral shape distribute and every group of cutter on tooth pitch between adjacent profile of tooth be the structural design of the twice of workpiece tooth pitch, improved the force-bearing situation of cutter in the working angles, stable cutting, chip removal smoothness, noise reduces, and has improved the crudy of surface of the work; Reduced the wearing and tearing of cutter, improved three times cutter life, and production efficiency improved 20%, the utility model is simple in structure, reasonable in design, has certain popularization value at the machine cut manufacture field.
Description of drawings
Fig. 1 is the end face structure schematic diagram of broach milling cutter
Fig. 2 is the structural representation of existing broach milling cutter
Fig. 3 is vertical partial sectional view of Fig. 1, is the structural representation of the utility model broach milling cutter
Fig. 4 is the schematic diagram in A-A cross section among Fig. 3
Fig. 5 is the partial enlarged drawing of A among Fig. 3
Among the figure: 1-cutter hub 2-cutter 3-profile of tooth 4-cutting edge 5-chip pocket
The specific embodiment
Helicla flute side set broach milling cutter, as shown in Figure 3, comprise cutter hub 1, cutter hub 1 is provided with some groups of cutters 2, be distributed with plurality of tooth-shaped 3 on every group of cutter, the hypotenuse of profile of tooth 3 tops and both sides end face is respectively cutting edge 4, form chip pocket 5 between the two adjacent groups cutter, as shown in Figure 5, the normal rake α of point of a knife place of profile of tooth 3 top cutting edges 4 is+3 °～+ 7 °, is preferably+5 °, chip pocket 5 is shape distribution in the shape of a spiral on cutter hub 1, and the angle β between chip pocket 5 and the cutter hub axis is 28 °～32 °, is preferably 30 °, when this milling cutter is installed, the rotary orientation of chip pocket should be consistent with the rotation direction of the turning cylinder of equipment, as shown in Figure 4, arbitrarily the profile of tooth on the two adjacent groups cutter is staggered and arranges, and the tooth pitch L on every group of cutter between adjacent profile of tooth is the twice of workpiece tooth pitch.
Claims (3)
1. helicla flute side set broach milling cutter, comprise cutter hub (1), cutter hub (1) is provided with some groups of cutters (2), be distributed with plurality of tooth-shaped (3) on every group of cutter, the hypotenuse of profile of tooth (3) top and both sides end face is respectively cutting edge (4), form chip pocket (5) between the two adjacent groups cutter, it is characterized in that: the normal rake α of point of a knife place of profile of tooth (3) top cutting edge (4) is+3 °～+ 7 °.
2. helicla flute side set broach milling cutter according to claim 1 it is characterized in that chip pocket (5) shape distribution in the shape of a spiral on cutter hub (1), and the angle β between chip pocket (5) and the cutter hub axis is 28 °～32 °.
3. helicla flute side set broach milling cutter according to claim 1 and 2 is characterized in that profile of tooth on any two adjacent groups cutter is staggered and arranges, and the tooth pitch L on every group of cutter between adjacent profile of tooth is the twice of workpiece tooth pitch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200720101023 CN201049407Y (en) | 2007-04-11 | 2007-04-11 | Spiral groove staggered tooth comb milling cutter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200720101023 CN201049407Y (en) | 2007-04-11 | 2007-04-11 | Spiral groove staggered tooth comb milling cutter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201049407Y true CN201049407Y (en) | 2008-04-23 |
Family
ID=39335888
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200720101023 Expired - Fee Related CN201049407Y (en) | 2007-04-11 | 2007-04-11 | Spiral groove staggered tooth comb milling cutter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201049407Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101982278A (en) * | 2010-10-19 | 2011-03-02 | 北京理工大学 | Microminiature Extended staggered tooth hobbing cutter |
| CN104117721A (en) * | 2013-04-27 | 2014-10-29 | 陕西飞机工业（集团）有限公司 | Novel insection hob |
| CN104493273A (en) * | 2014-10-16 | 2015-04-08 | 湖南大学 | Hob for processing band saw blade |
-
2007
- 2007-04-11 CN CN 200720101023 patent/CN201049407Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101982278A (en) * | 2010-10-19 | 2011-03-02 | 北京理工大学 | Microminiature Extended staggered tooth hobbing cutter |
| CN104117721A (en) * | 2013-04-27 | 2014-10-29 | 陕西飞机工业（集团）有限公司 | Novel insection hob |
| CN104493273A (en) * | 2014-10-16 | 2015-04-08 | 湖南大学 | Hob for processing band saw blade |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: YONGJI NEW SPEED ELECTRIC MOTOR CO. Free format text: FORMER OWNER: YONGJI MOTOR FACTORY, CHINESE BEICHE GROUP Effective date: 20081031 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20081031 Address after: No. 18, motor street, Yongji, Shanxi Province: 044500 Patentee after: Yongji Xinshisu Motor Electrical Appliance Co., Ltd. Address before: No. 18, motor street, Yongji, Shanxi Province: 044500 Patentee before: CNR Yongji Electric Machine Factory |
|
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080423 Termination date: 20120411 |