CN201102074Y - Tool bit for composite form of cutting-extrusion pressing - Google Patents
Tool bit for composite form of cutting-extrusion pressing Download PDFInfo
- Publication number
- CN201102074Y CN201102074Y CNU2007201262100U CN200720126210U CN201102074Y CN 201102074 Y CN201102074 Y CN 201102074Y CN U2007201262100 U CNU2007201262100 U CN U2007201262100U CN 200720126210 U CN200720126210 U CN 200720126210U CN 201102074 Y CN201102074 Y CN 201102074Y
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- cutting edge
- cutting
- rake face
- flank
- angle
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- Cutting Tools, Boring Holders, And Turrets (AREA)
Abstract
The utility model discloses a cutting-extrusion composite shaping tool, which includes a tool; the front end of the tool is respectively sharpened into a rake face, a flank and a minor flank; the rake face and the flank form a major cutting edge; the rake face and the minor flank form a minor cutting edge; the rake face, the flank, the minor flank, the major cutting edge and the minor cutting edge form a tool nose; the cutting edges and the rake face, the flank and the minor flank meet certain angle relationship. The cutting-extrusion composite shaping tool is in particular applicable to chipless processing to metal surface fins, can change the structure and the dimension of the fins by changing the angle and cutting amount of the tool, solves the difficulties in processing fins on thin wall pipes and the difficulties of the unchangeable structure and dimension of the fins, and the cutting-extrusion composite shaping tool is characterized by simple structure and low cost.
Description
Technical field
The utility model belongs to metal cutting and Technology of Plastic Processing field, relates to a kind of cutter that adopts cutting and extrusion process to operate simultaneously, is specially adapted to the ELEMENTARY INTRODUCTION TO NON of metal surface fin.
Background technology
Finned heat exchanger is extensive use in industry.Fin structure commonly used adopts modes such as assembly type, machining, roll extrusion mostly, complex process, and operation is many, waste material.The fin manufacture method of enhance heat has been carried out big quantity research both at home and abroad, as welding fin, rolling structure fin, Milling Process fin fin structure or the like, these structures will be carried out on thicker tube wall mostly for this reason.Splitting that South China Science ﹠ Engineering University designs and develops cut-the plow processing method, makes the light-wall pipe fin be processed into possibility, but the cutter for same structure makes the fin height of moulding be affected mainly based on extruding, and the fin structure that can process is more single.
Summary of the invention
The purpose of this utility model provides a kind of cutting-extruding combined shaping cutter, can realize that cutting and extruding combine, and has solved the difficulty of processing fin on light-wall pipe, and can process the fin of different size.
The technical scheme that the utility model adopted is, a kind of cutting-extruding combined shaping cutter, comprise cutter hub, the front end of cutter hub sharpening respectively becomes rake face, back knife face and minor flank, rake face forms main cutting edge with the back knife face, and rake face and minor flank form front cutting edge, and rake face, back knife face, minor flank and main cutting edge and front cutting edge form point of a knife, and
Angle is projected as 10 °～45 ° between main cutting edge and the direction of feed on basal plane,
The reciprocal angle of front cutting edge and feed motion is projected as 45 °～110 ° on basal plane
Angle between rake face and the basal plane is projected as 5 °～50 ° on orthogonal plane
Back knife face and cutting plane angle are projected as 3 °～8 ° on orthogonal plane
Angle between main cutting edge and the basal plane is projected as-10 °～-40 ° on the cutting plane,
Minor flank and cutting plane angle are projected as 5 °～20 ° on the front cutting edge orthogonal plane.
Characteristics of the present utility model also are,
The cross section of cutter hub is square, rectangle or cylindrical.
The material of cutter hub is selected carbide alloy or high-speed steel for use.
Cutter of the present utility model, can be installed in materials processing good on the machine tool to plasticity, utilize the cutter main cutting edge to cut surface of the work, the borings of being cut is erected on the matrix surface and a kind of cutting-extruding shaping without stock removal fin that forms through the extruding of rake face and front cutting edge, and can change the structure and the size of fin easily by changing cutting-tool angle and cutting data.Thereby solved and on light-wall pipe, processed the difficulty that fin and fin structure and size are difficult to change.
Cutter of the present utility model need not special material and manufacture method, and the universal cutter material can use through reasonable sharpening, and is simple in structure, with low cost, easy for installation.
Description of drawings
Fig. 1 is the structural representation of the utility model cutter;
Fig. 2 is the utility model cutter angular dimension schematic diagram.
Among the figure, 1. main cutting edge, 2. rake face, 3. front cutting edge, 4. cutter hub, 5. back knife face, 6. minor flank.
The specific embodiment
Below in conjunction with the drawings and specific embodiments the utility model is elaborated.
As shown in Figure 1, the utility model is on carbide alloy or high-speed steel cutter hub 4, and sharpening goes out to meet the geometry and the angle of cutting extrusion modling requirement.Form point of a knife, main cutting edge 1, front cutting edge 3 by sharpening rake face 2, back knife face 5 and minor flank 6, cutter hub 4 can be square, rectangle or cylindrical cross-section, so that install and use on lathes such as engine lathe, planer and milling machine.
As shown in Figure 2, cutter of the present utility model is in rest frame (X, Y, Z), and wherein X is the tool feeding direction, and Y is a cutter cutting-in direction, and Z is the cutting speed direction, uses basal plane Pr, cutting plane Ps and orthogonal plane PO as cutter angular dimension referential.Have 7 basic cutting-tool angles.
Tool cutting edge angle κ r: the projection of angle on basal plane between main cutting edge and the direction of feed, 10 °～45 ° of values
Auxiliary angle κ r ': the projection on basal plane of the reciprocal angle of front cutting edge and feed motion, 45 °～110 ° of values
Front (top) rake angle γ o: the angle projection on orthogonal plane between rake face and the basal plane Pr, 5 °～50 ° of values
Primary clearance α o: back knife face and the projection on orthogonal plane of cutting plane Ps angle, 3 °～8 ° of values
Cutting edge inclination λ s: the angle projection on the cutting plane between main cutting edge and the basal plane P0, value-10 °～-40 °,
Front clearance α o ': minor flank and the projection on the front cutting edge orthogonal plane of cutting plane angle, 5 °～20 ° of values
Wherein front top rake angle γ o ' is for deriving angle.
The course of work of the present utility model is, cutter is installed on the lathe tool rest, guarantees that the cutter hub center line is vertical with direction of feed; Adjust the point of a knife height, guarantee that according to different fin dimensional requirements point of a knife is lower than work centre line 0.5～5mm; Carry out workpiece rotation-penetration of a cutting tool-vertically auto-feed campaign according to machine tool motion, utilize main cutting edge 1 to cut surface of the work, the borings of being cut is erected on the matrix surface and the formation fin is finished processing through the extruding of rake face 2 and front cutting edge 3.
The essence of metal cutting processing is excision excess metal layer, forms smooth surface of the work.And the characteristics of present technique are that cutter structure and angle are carried out special design, add and make man-hour point of a knife be lower than workpiece centre, when the main cutting cutting blade cuts metal level, root still links to each other with matrix, cut metal level through rake face and front cutting edge extruding, made it to be erected at the required fin of formation on the basic surface.By adjusting and changing cutting-tool angle, can obtain the fin of different size and form.
Claims (3)
1. cutting-extruding combined shaping cutter, it is characterized in that, comprise cutter hub (4), the front end of cutter hub (4) sharpening respectively becomes rake face (2), back knife face (5) and minor flank (6), described rake face (2) forms main cutting edge (1) with back knife face (5), and described rake face (2) forms front cutting edge (3) with minor flank (6), and described rake face (2), back knife face (5), minor flank (6) and main cutting edge (1) and front cutting edge (3) form point of a knife, and
Angle is projected as 10 °～45 ° between main cutting edge (1) and the direction of feed on basal plane,
Front cutting edge (3) is projected as 45 °～110 ° with the reciprocal angle of feed motion on basal plane
Angle between rake face (2) and the basal plane is projected as 5 °～50 ° on orthogonal plane
Back knife face (5) is projected as 3 °～8 ° with the cutting plane angle on orthogonal plane
Angle between main cutting edge (1) and the basal plane is projected as-10 °～-40 ° on the cutting plane,
Minor flank (6) is projected as 5 °～20 ° with the cutting plane angle on front cutting edge (3) orthogonal plane.
2. according to the described cutter of claim 1, it is characterized in that the cross section of described cutter hub (4) is square, rectangle or cylindrical.
3. according to the described cutter of claim 1, it is characterized in that the material of described cutter hub (4) is selected carbide alloy or high-speed steel for use.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201262100U CN201102074Y (en) | 2007-10-26 | 2007-10-26 | Tool bit for composite form of cutting-extrusion pressing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201262100U CN201102074Y (en) | 2007-10-26 | 2007-10-26 | Tool bit for composite form of cutting-extrusion pressing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201102074Y true CN201102074Y (en) | 2008-08-20 |
Family
ID=39949092
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007201262100U Expired - Fee Related CN201102074Y (en) | 2007-10-26 | 2007-10-26 | Tool bit for composite form of cutting-extrusion pressing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201102074Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108188419A (en) * | 2017-12-04 | 2018-06-22 | 沈阳兴华航空电器有限责任公司 | For the cutoff tool of electric connector contact pin reversing processing and reversing processing method |
| CN115889831A (en) * | 2022-12-30 | 2023-04-04 | 华南理工大学 | Composite cutter for preparing fins with inclined array structures and preparation method |
| CN116197423A (en) * | 2023-02-17 | 2023-06-02 | 华南理工大学 | Combined cutter and method for preparing three-dimensional array structure metal fins |
-
2007
- 2007-10-26 CN CNU2007201262100U patent/CN201102074Y/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108188419A (en) * | 2017-12-04 | 2018-06-22 | 沈阳兴华航空电器有限责任公司 | For the cutoff tool of electric connector contact pin reversing processing and reversing processing method |
| CN115889831A (en) * | 2022-12-30 | 2023-04-04 | 华南理工大学 | Composite cutter for preparing fins with inclined array structures and preparation method |
| CN115889831B (en) * | 2022-12-30 | 2024-03-19 | 华南理工大学 | Composite cutter for preparing fins with inclined array structures and preparation method |
| CN116197423A (en) * | 2023-02-17 | 2023-06-02 | 华南理工大学 | Combined cutter and method for preparing three-dimensional array structure metal fins |
| CN116197423B (en) * | 2023-02-17 | 2024-04-19 | 华南理工大学 | Combined cutter and method for preparing three-dimensional array structure metal fins |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080820 Termination date: 20131026 |