CN102495585A  Method for generating glass polishing machining path of fiveaxis numerical control machine  Google Patents
Method for generating glass polishing machining path of fiveaxis numerical control machine Download PDFInfo
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 CN102495585A CN102495585A CN2011104391138A CN201110439113A CN102495585A CN 102495585 A CN102495585 A CN 102495585A CN 2011104391138 A CN2011104391138 A CN 2011104391138A CN 201110439113 A CN201110439113 A CN 201110439113A CN 102495585 A CN102495585 A CN 102495585A
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Abstract
The invention relates to the technical field of computer aided design and manufacturing, in particular to a method for generating a glass polishing machining path of a fiveaxis numerical control machine. The method comprises the following steps of: A, constructing a geometric curved surface representing the shape of a product; B, designing a polishing shape curve on a plane and defining the section shape of a polishing grinding wheel; C, defining a cone tool according to the section shape of the polishing grinding wheel; D, generating a fiveaxis path of machining of a tool nose of the cone tool; E, simulating and previewing a machining effect and regulating the fiveaxis machining path to ensure the fiveaxis machining path to meet the design requirements of the product; F, mapping the machining path of the cone tool on the plane to the curved surface constructed in the step A; and G, converting the machining path of the tool nose of the cone tool into a polishing machining path of the grinding wheel. According to the invention, glass polishing is carried out by using the fiveaxis numerical control machine, patterns of the product have good consistency, and complex patterns can be machined. Meanwhile, the production efficiency is improved, the production cost is reduced and the development period of a novel pattern is shortened.
Description
Technical field
The present invention relates to computeraided design (CAD) and manufacturing technology field, particularly a kind of generation method of fiveaxle number control machine tool embossing glass articles machining path.
Background technology
Embossing glass articles is processed in the processing of product such as highgrade winebottle and is able to gradually use.Compare with the decorative pattern of casting, the corner angle of emery wheel mill flower are clear, and shape is free, can promote the class of product.The processing of conventional glass mill flower is operated the buffing machine bed by the workman and is realized, this mode requires than higher workman's technology and experience, and production efficiency is lower, and the consistance of product decorative pattern is poor, and complicated decorative pattern is not easy to realize.Along with the development of society and the raising of consumer demand; Traditional mode of production can not meet the needs of production gradually; Needing to demand a kind of new mode of production urgently; This blank has just in time been filled up in the appearance of fiveaxle number control machine tool, but embossing glass articles machining path how to edit fiveaxle number control machine tool becomes a great problem.
Summary of the invention
Fundamental purpose of the present invention is to overcome the deficiency of existing method, and a kind of generation method of fiveaxle number control machine tool embossing glass articles machining path is provided, and realizes carrying out embossing glass articles processing with fiveaxle number control machine tool.
In order to solve the problems of the technologies described above, the present invention realizes through following technical scheme:
A kind of generation method of fiveaxle number control machine tool embossing glass articles machining path comprises:
Step a constructs the geometric curved surfaces of expression shape of product according to the geometric data of glass product;
Step b designs the pattern curve that mill is spent in the plane, and goes out the cross sectional shape of mill flower emery wheel according to the mill flower shape definition of design;
Step c, the awl cutter, the processing effect of processing effect and wheel grinding that guarantees to bore the cutter point of a knife is consistent according to the definition one of the cross sectional shape of emery wheel;
Steps d is according to the mill flower pattern curve of design and five paths of awl knifeedge shape generating cone cutter point of a knife processing;
Step e through processing analog functuion preview processing effect, judges whether to meet design requirement.If there are differences, need adjust five paths, till processing effect satisfies the product design requirement with design shape;
Step f is mapped to the awl cutter machining path on the plane on the curved surface that step a constructed, and generates five machining paths of awl cutter of curved surface;
Step g, the machining path that will bore the cutter point of a knife through the corresponding relation of awl cutter and emery wheel converts the machining path of wheel grinding into.
Preferably; A kind of generation method of fiveaxle number control machine tool embossing glass articles machining path; The generation method in five paths described in the steps d is: the cutter axis orientation of some CCPs place and the degree of depth on the first assignment curve; The cutter axis orientation at other some places and the degree of depth are obtained by the cutter axis orientation and the degree of depth interpolation of two adjacent CCPs place on the curve, and its detailed process is:
D1. on geometric locus, specify some CCPs, and set the cutter axis orientation and the degree of depth of CCP according to product requirement;
D2. according to the cutter axis orientation of each CCP, calculate the elevation angle and the position angle of each CCP.Wherein, the elevation angle is meant the angle between cutter axis orientation and the surface level, and angular range is90 °～+ 90 °; The position angle is meant the angle of cutter axis orientation between projecting direction on the surface level and X axle, and angular range is 0 °～360 °; Cutter axis orientation position angle for vertical is invalid, is only represented by the elevation angle;
D3. according to the elevation angle of each CCP and position angle respectively interpolation calculation go out the elevation angle and the position angle of each path point;
D4. calculate the cutter axis orientation of each path point respectively according to the elevation angle that obtains among the d3 and position angle;
D5. go out the degree of depth of each path point according to the degree of depth interpolation calculation of each CCP, generate five paths.
Preferably, the adjustment in five paths described in the step e is to realize through position, direction and the degree of depth of adjusting CCP.
Preferably, the direction of CCP place described in the said method and the degree of depth can be set and adjust by the shape of the section line of awl cutter on design plane.
Preferably, a kind of generation method of fiveaxle number control machine tool embossing glass articles machining path, step g comprises:
F1. calculate curved surface U to V to the maximum length lu and the lv that wait parameter line;
F2. on the plane, path, make up a rectangle, two limits of rectangle are parallel with the Y axle with the X axle respectively, and the length of side of the directions X of rectangle and Y direction is respectively lu and lv, the position consistency that rectangle is spent with respect to mill with respect to the position and the curved surface of panel path;
F3. the planar rectangular zone is mapped with a twodimensional parameter zone; Corresponding parameter (0 is put in the lower left corner of rectangle; 0) point, corresponding parameter (1, the 1) point of the upper right angle point of rectangle; Panel path in the rectangle according to the twodimensional coordinate of each path point can obtain one group of corresponding parameters value (u, v);
F4. (u v), can obtain the coordinate points of a correspondence on curved surface, be the path point coordinate on the curved surface according to the twodimensional parameter value of each path point of obtaining;
F5. the point of the path on curved surface place makes up a local coordinate system; Path point on the curved surface is as the initial point of coordinate system; Curved surface is in the normal direction of this some Zdirection as coordinate system; According to the product actual needs select curved surface at the U of this point to the tangential of waiting parameter line as Xdirection, calculate the direction of Y axle according to the telegoniometer of Z axle and X axle again; Perhaps select curved surface at the V of this point to the tangential of waiting parameter line as Y direction, calculate the direction of X axle according to the telegoniometer of Z axle and Y axle again;
F6. (i, j k) as the vector in the respective path point place local coordinate system on the curved surface, are converted to world coordinate system with this vector again, are the cutter axis orientation at curved surface upper pathway point place with the vectorial V of the cutter axis orientation of plane upper pathway point.
Compared with prior art; The invention has the beneficial effects as follows: the generation method of fiveaxle number control machine tool embossing glass articles machining path provided by the invention has realized carrying out with fiveaxle number control machine tool the processing of embossing glass articles; No longer rely on workman's manual skill and experience; The high conformity of product decorative pattern, and can realize the processing of intricate detail; Improve production efficiency simultaneously, reduced production cost, shortened the construction cycle of trendy fancy.
Description of drawings
Fig. 1 is the process flow diagram of the inventive method.
Fig. 2 is the curved surface synoptic diagram of the expression shape of product that provides of the embodiment of the invention.
Fig. 3 is the flat stone mill flower pattern curve synoptic diagram that the embodiment of the invention designs.
Fig. 4 is the mill flower emery wheel and awl knifeedge shape synoptic diagram that the embodiment of the invention sets.
Fig. 5 is five machining path synoptic diagram of plane awl cutter that the embodiment of the invention generates.
Effect synoptic diagram when Fig. 6 is embodiment of the invention processing simulation preview.
Fig. 7 is the five machining path synoptic diagram of curved surface awl cutter after embodiment of the invention mapping is accomplished.
Fig. 8 is the final five mill flower machining path synoptic diagram that generate of the embodiment of the invention.
Fig. 9 is the process flow diagram of five path generating methods providing of the embodiment of the invention.
Figure 10 be the specified curve CCP of embodiment of the invention prescription to the degree of depth overlook the effect synoptic diagram.
Figure 11 be the specified curve CCP of embodiment of the invention prescription to the forward sight effect synoptic diagram of the degree of depth.
Figure 12 is the synoptic diagram that is used for explaining all path point cutter axis orientations and the degree of depth on the curve that the CCP of embodiment of the invention interpolation calculation obtains.
Figure 13 is that the mapping method process flow diagram that the cutter machining path transfers curved surface processing path to is bored on the plane that the embodiment of the invention provides.
Figure 14 is used for explaining that the cutter point of a knife machining path of will boring that the embodiment of the invention provides converts the synoptic diagram that mill is spent emery wheel machining path method into.
Embodiment
Below in conjunction with accompanying drawing and embodiment the present invention is described in further detail: the process flow diagram of the generation method of a kind of fiveaxle number control machine tool embossing glass articles machining path of the present invention is as shown in Figure 1, according to the programming instance of mill flower on the vial embodiment of the present invention is described once.
Step 106 is mapped to the awl cutter machining path on this plane in the step 101 on institute's constructing curve, generates the awl cutter machining path of curved surface.What Fig. 7 represented promptly is the curved surface five axial cone cutter machining paths after mapping is accomplished in the embodiment of the invention.
Fig. 9 has shown the process flow diagram of five path generating methods that provide in the embodiment of the invention step 104, and the practical implementation process is following:
Step 902 according to the cutter axis orientation of each CCP, calculates the elevation angle and the position angle of each CCP.Wherein, the elevation angle is meant the angle between cutter axis orientation and the surface level, and angular range is90 °～+ 90 °; The position angle is meant the angle of cutter axis orientation between projecting direction on the surface level and X axle, and angular range is 0 °～360 °; Cutter axis orientation position angle for vertical is invalid, is only represented by the elevation angle;
Step 904 calculates the cutter axis orientation of each path point respectively according to the elevation angle that obtains in the step 903 and position angle;
Step 905 goes out the degree of depth of each path point according to the degree of depth interpolation calculation of each CCP, generates five paths.The cutter axis orientation and the degree of depth of Figure 12 representes all path points that to be abovementioned curve obtain according to the CCP interpolation calculation.
Figure 13 has shown that plane awl cutter machining path that the embodiment of the invention provides transfers the mapping method of curved surface processing path to, and the practical implementation process is following:
Figure 14 is used for explaining that the cutter point of a knife machining path of will boring that the embodiment of the invention provides converts the method that mill flower emery wheel mill is spent machining path into: as shown in Figure 14; The path point pnt2 that the path point pnt1 of awl cutter is transferred to mill flower emery wheel; And will bore the cutter axis orientation axis2 that cutter track cutter axis orientation axis1 directly transfers mill flower emery wheel path to, thereby change into the machining path of mill flower emery wheel by the awl cutter machining path on the curved surface.
In sum, the present invention has realized carrying out with fiveaxle number control machine tool the processing of embossing glass articles, no longer relies on workman's manual skill and experience; With respect to manual operations, improved production efficiency, reduced production cost, shortened the construction cycle of trendy fancy, and the high conformity of converted products decorative pattern, be suitable for producing in batches.
Although preceding text specify the present invention, the invention is not restricted to this, those skilled in the art can carry out various modifications according to principle of the present invention.Therefore, all modifications of doing according to the principle of the invention all are to be understood that to falling into protection scope of the present invention.
Claims (7)
1. the generation method of a fiveaxle number control machine tool embossing glass articles machining path is characterized in that, its key step comprises:
Step a constructs the geometric curved surfaces of expression shape of product according to the geometric data of glass product;
Step b designs the pattern curve that mill is spent in the plane, and goes out the cross sectional shape of mill flower emery wheel according to the mill flower shape definition of design;
Step c, the awl cutter, the processing effect of processing effect and wheel grinding that guarantees to bore the cutter point of a knife is consistent according to the definition one of the cross sectional shape of emery wheel;
Steps d is according to the mill flower pattern curve of design and five paths of awl knifeedge shape generating cone cutter point of a knife processing;
Step e through processing analog functuion preview processing effect, judges whether to meet design requirement; If there are differences, need adjust five paths, till processing effect satisfies the product design requirement with design shape;
Step f is mapped to the awl cutter machining path on the plane on the curved surface that step a constructed, and generates five machining paths of awl cutter of curved surface;
Step g, the machining path that will bore the cutter point of a knife through the corresponding relation of awl cutter and emery wheel converts the machining path of wheel grinding into.
2. the generation method of a kind of fiveaxle number control machine tool embossing glass articles machining path according to claim 1; It is characterized in that: the generation method in five paths described in the steps d is: the cutter axis orientation at some key point places and the degree of depth on the first assignment curve, the cutter axis orientation at other some places and the degree of depth are obtained by the cutter axis orientation and the degree of depth interpolation at two adjacent key point places on the curve.
3. the generation method of a kind of fiveaxle number control machine tool embossing glass articles machining path according to claim 2 is characterized in that: the generation method in described five paths comprises:
D1. on geometric locus, specify some CCPs, and set the cutter axis orientation and the degree of depth of CCP according to product requirement;
D2. according to the cutter axis orientation of each CCP, calculate the elevation angle and the position angle of each CCP; Wherein, the elevation angle is meant the angle between cutter axis orientation and the surface level, and angular range is90 °～+ 90 °; The position angle is meant the angle of cutter axis orientation between projecting direction on the surface level and X axle, and angular range is 0 °～360 °; Cutter axis orientation position angle for vertical is invalid, is only represented by the elevation angle;
D3. according to the elevation angle of each CCP and position angle respectively interpolation calculation go out the elevation angle and the position angle of each path point;
D4. calculate the cutter axis orientation of each path point respectively according to the elevation angle that obtains among the d3 and position angle;
D5. go out the degree of depth of each path point according to the degree of depth interpolation calculation of each CCP, generate five paths.
4. according to the generation method of claim 2 or 3 described a kind of fiveaxle number control machine tool embossing glass articles machining paths, it is characterized in that: the cutter axis orientation at described key point place and the setting of the degree of depth are to realize by the section line shape of awl cutter on design plane.
5. according to the generation method of claim 2 or 3 described a kind of fiveaxle number control machine tool embossing glass articles machining paths, it is characterized in that: five machining paths of the adjustment described in the step e are to realize through position, cutter axis orientation and the degree of depth of adjusting key point.
6. the generation method of a kind of fiveaxle number control machine tool embossing glass articles machining path according to claim 5 is characterized in that: the cutter axis orientation at described key point place and the adjustment of the degree of depth are to realize by the section line shape of awl cutter on design plane.
7. the generation method of a kind of fiveaxle number control machine tool embossing glass articles machining path according to claim 1 is characterized in that: the described mapping method of step f comprises:
F1. calculate curved surface U to V to the maximum length lu and the lv that wait parameter line;
F2. on the plane, path, make up a rectangle, two limits of rectangle are parallel with the Y axle with the X axle respectively, and the length of side of the directions X of rectangle and Y direction is respectively lu and lv, the position consistency that rectangle is spent with respect to mill with respect to the position and the curved surface of panel path;
F3. the planar rectangular zone is mapped with a twodimensional parameter zone; Corresponding parameter (0 is put in the lower left corner of rectangle; 0) point, corresponding parameter (1, the 1) point of the upper right angle point of rectangle; Panel path in the rectangle according to the twodimensional coordinate of each path point can obtain one group of corresponding parameters value (u, v);
F4. (u v), can obtain the coordinate points of a correspondence on curved surface, be the path point coordinate on the curved surface according to the twodimensional parameter value of each path point of obtaining;
F5. the point of the path on curved surface place makes up a local coordinate system; Path point on the curved surface is as the initial point of coordinate system; Curved surface is in the normal direction of this some Zdirection as coordinate system; According to the product actual needs select curved surface at the U of this point to the tangential of waiting parameter line as Xdirection, calculate the direction of Y axle according to the telegoniometer of Z axle and X axle again; Perhaps select curved surface at the V of this point to the tangential of waiting parameter line as Y direction, calculate the direction of X axle according to the telegoniometer of Z axle and Y axle again;
F6. (i, j k) as the vector in the respective path point place local coordinate system on the curved surface, are converted to world coordinate system with this vector again, are the cutter axis orientation at curved surface upper pathway point place with the vectorial V of the cutter axis orientation of plane upper pathway point.
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Cited By (6)
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CN103488125A (en) *  20131010  20140101  昆山纯柏精密五金有限公司  Tool control data generation method 
CN103513606A (en) *  20130709  20140115  西北工业大学  Method for generating optimal straightline enveloping surface of freeform surface blade 
WO2014008742A1 (en) *  20120712  20140116  深圳市常兴技术股份有限公司  Method for hole grinding with a smallsize drill bit 
CN109299514A (en) *  20180828  20190201  天津大学  The wheel path generation method of inclined shaft grinding free form surface 
CN110103142A (en) *  20190505  20190809  广东省汉兴科技有限公司  A kind of intelligent abrasive wheel switching method and device 
CN114137904A (en) *  20211208  20220304  北京精雕科技集团有限公司  Path generation method for curved surface turning 
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Publication number  Priority date  Publication date  Assignee  Title 

WO2014008742A1 (en) *  20120712  20140116  深圳市常兴技术股份有限公司  Method for hole grinding with a smallsize drill bit 
CN103513606A (en) *  20130709  20140115  西北工业大学  Method for generating optimal straightline enveloping surface of freeform surface blade 
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CN110103142A (en) *  20190505  20190809  广东省汉兴科技有限公司  A kind of intelligent abrasive wheel switching method and device 
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CN114137904B (en) *  20211208  20230714  北京精雕科技集团有限公司  Path generation method for curved surface turning 
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Effective date of registration: 20190109 Address after: 102308 No. 10 Yongan Road, Shilong Industrial Zone, Mentougou District, Beijing Patentee after: Beijing finishing impression science and technology Group Co., Ltd Address before: Room 1507 and 1508, Tianhangjian Business Building, 47 Fuxing Road, Haidian District, Beijing, 100036 Patentee before: Beijing Enterprising Persons Software Technology Co.,Ltd. 

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