CN103962912B - A kind of preparation method of five-shaft numerical control grinding inserts groove - Google Patents
A kind of preparation method of five-shaft numerical control grinding inserts groove Download PDFInfo
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- CN103962912B CN103962912B CN201410120023.6A CN201410120023A CN103962912B CN 103962912 B CN103962912 B CN 103962912B CN 201410120023 A CN201410120023 A CN 201410120023A CN 103962912 B CN103962912 B CN 103962912B
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- inserts groove
- grinding
- cut
- shape
- emery wheel
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B3/00—Sharpening cutting edges, e.g. of tools; Accessories therefor, e.g. for holding the tools
- B24B3/36—Sharpening cutting edges, e.g. of tools; Accessories therefor, e.g. for holding the tools of cutting blades
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
Abstract
The invention discloses a kind of preparation method of five-shaft numerical control grinding inserts groove, comprise and set up blade and emery wheel threedimensional model; According to groove design drawing, get some sampled points carry out matching draw inserts groove cut shape curve; Cut shape curve to inserts groove to divide equally, get the cut-point of equal branch as per pass grinding; According to the angle value of chip breaker angle and cutting edge inclination, emery wheel axis and inserts groove sectional position relation are set and emery wheel track is calculated; Available NC code is generated by the post processor formulated; NC code is imported in 5-shaft linkage numerical control grinding machine, and by blank clamping in the frock of customization; The reciprocal grinding of emery wheel, the number of times of grinding is counted consistent with branch equal on section shape curve; Cut the sampled point on shape fit line according to processing result adjustment cutter groove, make processing result meet drawing requirement.The method can reduce the development cost of new chip-breaker shape and shorten the construction cycle, and has process feature flexibly.
Description
Technical field
The present invention relates to Grinding Technology field, particularly relate to a kind of preparation method of five-shaft numerical control grinding inserts groove.
Background technology
Along with manufacturing development, the kind demand of manufacturing enterprise to indexable insert tip, throw away tip is increasing.According to market analysis, at present in the country that industry is flourishing, the cutter adopted in turnery processing almost all substitute by indexable insert tip, throw away tip; In milling, the output of milling cutter blade capable of rotating positions has also accounted for 60% of milling cutter, and the market proportion of domestic indexable insert tip, throw away tip is greatly about about 50%, and obvious indexable insert tip, throw away tip can not meet manufacturing demand far away.The chip-breaker of the indexable insert tip, throw away tip of prior art generally adopts complicated three-dimension curved surface, in order to verify the feasibility of chip-breaker shape, the chip-breaker experimental program that usual employing is traditional, that is, must make new mould, result revises mould more by experiment, experimental demonstration again, until chip-breaker shape meets designing requirement, can cause like this R&D costs and the R&D cycle longer, be unfavorable for the exploitation of new chip-breaker.
Summary of the invention
The object of the invention is to the deficiency overcoming prior art, a kind of preparation method of five-shaft numerical control grinding inserts groove is provided, by extracting the cross section curve of chip-breaker shape, matching and calculate cutter rail according to preset algorithm, utilize the frock of customization, clamping is on five-shaft numerical control grinding machine, and emery wheel carries out reciprocal grinding, thus being ground to the chip-breaker shape of design, the method can reduce the development cost of new chip-breaker shape and shorten the construction cycle.
The technical solution adopted for the present invention to solve the technical problems is: a kind of preparation method of five-shaft numerical control grinding inserts groove, comprises the steps:
A. blade and emery wheel threedimensional model is set up;
B. according to groove design drawing, get some sampled points carry out matching draw inserts groove cut shape curve;
C. cut shape curve to inserts groove to divide equally, get the cut-point of equal branch as per pass grinding;
D. according to the angle value of chip breaker angle and cutting edge inclination, emery wheel axis and inserts groove sectional position relation are set and emery wheel track is calculated;
E. the post processor by pre-establishing generates available NC code;
F. NC code is imported in 5-shaft linkage numerical control grinding machine, and by blank clamping in the frock customized in advance;
G. the reciprocal grinding of emery wheel, the number of times of grinding is counted consistent with branch equal on section shape curve;
H. judge whether processing result meets drawing requirement, if do not met, then cut the sampled point on shape fit line according to processing result adjustment cutter groove, and return step b; If met, then terminate.
Described step b first cuts shape to the conventional chip breaking of the blade flute profile designed to analyze, and then cuts at cutter groove and shape takes fully enough sample spot and carry out matching and cut shape curve to draw cutter groove.
The preparation method of a kind of five-shaft numerical control grinding inserts groove of the present invention, the inserts groove of grinding contains the grinding of chip breaker angle and cutting edge inclination; The inserts groove shape of grinding contains basic chip-breaker shape
Shape, the i.e. chip-breaker of Straight Line and Arc shape, the chip-breaker of rectilinear chip-breaker and wholecircle arc; The inventive method the blade shapes of grinding can comprise the 17 kinds of blade shapes specified in GB GB/T2076-2007; The blade of grinding also contains the blade of two types with holes and not with holes.
Compared with prior art, the invention has the beneficial effects as follows:
Have employed to set up blade and emery wheel threedimensional model in the inventive method; According to groove design drawing, get some sampled points carry out matching draw inserts groove cut shape curve; Cut shape curve to inserts groove to divide equally, get the cut-point of equal branch as per pass grinding; According to the angle value of chip breaker angle and cutting edge inclination, emery wheel axis and inserts groove sectional position relation are set and emery wheel track is calculated; Available NC code is generated by the post processor formulated; NC code is imported in 5-shaft linkage numerical control grinding machine, and by blank clamping in the frock of customization; The reciprocal grinding of emery wheel, the number of times of grinding is counted consistent with branch equal on section shape curve; Cut the sampled point on shape fit line according to processing result adjustment cutter groove, make processing result meet drawing requirement.The method technique is unique, utilizes the ability that five-shaft numerical control grinding machine is complex-curved, decreases the die sinking link in the novel chip-breaker process of research and development, reduces development cost and shorten the construction cycle; Meanwhile, method of the present invention also process is flexible, can cut shape curve adjust the flute profile making to process and meet drawing requirement in process according to actual processing result to flute profile.
Below in conjunction with drawings and Examples, the present invention is described in further detail; But the preparation method of a kind of five-shaft numerical control grinding inserts groove of the present invention is not limited to embodiment.
Accompanying drawing explanation
Fig. 1 is flow chart of the present invention;
Fig. 2 is the schematic diagram of blade blank;
Fig. 3 is the schematic cross-section of saucer wheel;
Fig. 4 is the organigram of the blade of design;
Fig. 5 is the front view of the blade of design;
Fig. 6 is the rearview of the blade of design;
Fig. 7 is the top view of the blade of design;
Fig. 8 is that inserts groove cuts shape curve synoptic diagram;
Fig. 9 is the schematic diagram of one of basic chip-breaker shape;
Figure 10 is the schematic diagram of basic chip-breaker shape two;
Figure 11 is the schematic diagram of basic chip-breaker shape three.
Detailed description of the invention
Embodiment
Shown in Figure 1, the preparation method of a kind of five-shaft numerical control grinding inserts groove of the present invention, comprises the steps:
A. blade and emery wheel threedimensional model is set up;
B. according to groove design drawing, get some sampled points carry out matching draw inserts groove cut shape curve;
C. cut shape curve to inserts groove to divide equally, get the cut-point of equal branch as per pass grinding;
D. according to the angle value of chip breaker angle and cutting edge inclination, emery wheel axis and inserts groove sectional position relation are set and emery wheel track is calculated;
E. the post processor by pre-establishing generates available NC code; NC code is exactly the code referring to that digital information control mechanical control device can identify;
F. NC code is imported in 5-shaft linkage numerical control grinding machine, and by blank clamping in the frock customized in advance;
G. the reciprocal grinding of emery wheel, the number of times of grinding is counted consistent with branch equal on section shape curve;
H. judge whether processing result meets drawing requirement, if do not met, then cut the sampled point on shape fit line according to processing result adjustment cutter groove, and return step b; If met, then terminate.
Wherein, described step b first cuts shape to the conventional chip breaking of the blade flute profile designed to analyze, and then cuts at cutter groove and shape takes fully enough sample spot and carry out matching and cut shape curve to draw cutter groove.
The preparation method of a kind of five-shaft numerical control grinding inserts groove of the present invention, the inserts groove of grinding contains the grinding of chip breaker angle and cutting edge inclination; The inserts groove shape of grinding contains basic chip-breaker shape
Shape, the i.e. chip-breaker (as shown in Figure 9) of Straight Line and Arc shape, the chip-breaker (as shown in figure 11) of rectilinear chip-breaker (as shown in Figure 10) and wholecircle arc; The inventive method the blade shapes of grinding can comprise the 17 kinds of blade shapes specified in GB GB/T2076-2007; The blade of grinding also contains the blade of two types with holes and not with holes.
The present embodiment be for TNGM090404 model blade so that the preparation method of a kind of five-shaft numerical control grinding inserts groove of the present invention to be described, also can expand to the blade of the shape that other GB GB/T2076-2007 of grinding specifies.
Step a sets up blade and emery wheel threedimensional model; Be utilize 3 d modeling software to set up blade blank as shown in Figures 2 and 3 and dish (emery) wheel threedimensional model, in the present embodiment, threedimensional model is equilateral triangle body, and upper and lower surface is plane, utilizes the inventive method grinding to go out the grooved of design on that plane.
Fig. 4, Fig. 5, Fig. 6, Fig. 7 are the blade engineering drawing of designed TNGM090404 model, Fig. 8 is the sectional view of blade flute profile, its main parameter is: anterior angle A1 is 14.5 °, relief angle 0 °, chip breaker angle A2 is 5 °, and cutting edge inclination A3 is 5 °, margin width S1 is 0.1mm, chip-breaker groove width S2 is 2.3mm, groove depth S3 is 0.7mm, and nose height H1 is 0.45mm.Five-shaft numerical control grinding machine is utilized to go out this inserts groove shape by method of the present invention.
Utilize method of the present invention, the center choosing equilateral triangle body is coordinate system, channel-section shape according to Fig. 8, calculate under this coordinate system, the parametric equation of curve, then by curve discretization, and finally utilize the sampled point of discretization to carry out matching to draw inserts groove and cut shape curve, then cut shape curve to inserts groove to divide equally, get the cut-point of equal branch as per pass grinding.
As shown in Figure 3, be saucer wheel that the present embodiment is chosen.According to the angle value of major parameter chip breaker angle and cutting edge inclination in inserts groove design process, calculate the location fix relation of emery wheel and insert groove tee section; Unlucky in grinding chip breaking, the axis angle of emery wheel is identical with chip breaker angle, when grinding cutting edge inclination, the axis direction of emery wheel depends on the grinding points position of emery wheel, make emery wheel grinding points position and cutting edge inclination oblique line tangent, cut-point in conjunction with grinding calculates, by the mode of the coordinate points of two-dimentional grooved curve by coordinate transformation, be transformed in machine tool reference coordinate system, calculate the Path of the blade flute profile of five-shaft numerical control grinding design, and calculate according to the post processor of design the NC code being suitable for machine tooling.
According to shape and the size of blade, the frock of the applicable grinding machine clamping that design is corresponding, because the inscribe diameter of a circle of blade is very little, designs the interference problem that this frock must avoid grinding process medium plain emery wheel and frock, mainly prevent the interference of hold-down screw and emery wheel.
According to the location fix relation in the emery wheel calculated and chip-breaker cross section, the reciprocal grinding of emery wheel goes out the key dimension of chip-breaker, by the grooved size of measurement and Theoretical Design size are contrasted, if measurement size is within the margin of tolerance of theoretical design size, grinding is qualified, otherwise (judge that main positions size is greater than Theoretical Design size according to measurement situation, still Theoretical Design size is less than), adjustment sampled point is in the position of coordinate system, and final grinding goes out the geometric structure diamete of the inserts groove shape of design.
The preparation method of a kind of five-shaft numerical control grinding of the present invention inserts groove, utilizes grinding to form complex-curved ability, and grinding goes out inserts groove shape structure.Process is unique, decreases the die sinking link in the novel chip-breaker process of research and development, reduces development cost and shorten the construction cycle; Process is flexible, can cut shape curve adjust the flute profile making to process and meet drawing requirement in process according to actual processing result to flute profile.
Above-mentioned just preferred embodiment of the present invention, not does any pro forma restriction to the present invention.Although the present invention discloses as above with preferred embodiment, but and be not used to limit the present invention.Any those of ordinary skill in the art, when not departing from technical solution of the present invention scope, can utilize the technology contents of above-mentioned announcement to make many possible variations and modification to technical solution of the present invention, or being revised as equivalents Equivalent embodiments.Therefore, every content not departing from technical solution of the present invention, according to the technology of the present invention essence to any simple modification made for any of the above embodiments, equivalent variations and modification, all should drop in the scope of technical solution of the present invention protection.
Claims (2)
1. a preparation method for five-shaft numerical control grinding inserts groove, is characterized in that: comprise the steps:
A. blade and emery wheel threedimensional model is set up;
B. cut shape design drawing according to inserts groove, get some sampled points carry out matching draw inserts groove cut shape curve;
C. cut shape curve to inserts groove to divide equally, get the cut-point of equal branch as per pass grinding;
D. according to the angle value of chip breaker angle and cutting edge inclination, emery wheel axis and inserts groove sectional position relation are set and emery wheel track is calculated;
E. the post processor by pre-establishing generates available NC code;
F. NC code is imported in 5-shaft linkage numerical control grinding machine, and by blank clamping in the frock customized in advance;
G. the reciprocal grinding of emery wheel, number of times and the inserts groove of grinding cut equal branch on shape curve and count consistent;
H. judge whether processing result meets drawing requirement, if do not met, then cut the sampled point on shape fit line according to processing result adjustment inserts groove, and return step b; If met, then terminate.
2. the preparation method of five-shaft numerical control grinding inserts groove according to claim 1, it is characterized in that: described step b is that the conventional chip breaking first cutting shape to the inserts groove designed cuts shape and analyzes, then cut at inserts groove and shape takes fully enough sample spot and carry out matching and cut shape curve to draw inserts groove.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410120023.6A CN103962912B (en) | 2014-03-27 | 2014-03-27 | A kind of preparation method of five-shaft numerical control grinding inserts groove |
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| CN201410120023.6A CN103962912B (en) | 2014-03-27 | 2014-03-27 | A kind of preparation method of five-shaft numerical control grinding inserts groove |
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| CN103962912A CN103962912A (en) | 2014-08-06 |
| CN103962912B true CN103962912B (en) | 2016-04-13 |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111251084A (en) * | 2020-04-03 | 2020-06-09 | 德阳天和机械制造有限责任公司 | Grinding process for front angle of milling cutter |
| CN114723874A (en) * | 2021-08-17 | 2022-07-08 | 成都工具研究所有限公司 | System and method for carrying out three-dimensional parametric design on blade chip breaker groove on network platform |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102814535A (en) * | 2012-08-02 | 2012-12-12 | 泰兴市信达克刀具有限公司 | Solid carbide drill chip breaker groove for steel part and design method thereof |
| EP2570211A1 (en) * | 2010-05-11 | 2013-03-20 | Tungaloy Corporation | Cutting insert |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006110667A (en) * | 2004-10-14 | 2006-04-27 | Mitsubishi Materials Corp | Cutting insert |
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- 2014-03-27 CN CN201410120023.6A patent/CN103962912B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2570211A1 (en) * | 2010-05-11 | 2013-03-20 | Tungaloy Corporation | Cutting insert |
| CN102814535A (en) * | 2012-08-02 | 2012-12-12 | 泰兴市信达克刀具有限公司 | Solid carbide drill chip breaker groove for steel part and design method thereof |
Non-Patent Citations (1)
| Title |
|---|
| 车刀断屑槽研磨工具及方法;陈波;《机械工程师》;20090923(第3期);全文 * |
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