CN107671366A - A kind of determination can not open up the method and device of water jet trajectory on straight burr machined surface - Google Patents
A kind of determination can not open up the method and device of water jet trajectory on straight burr machined surface Download PDFInfo
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- CN107671366A CN107671366A CN201710725992.8A CN201710725992A CN107671366A CN 107671366 A CN107671366 A CN 107671366A CN 201710725992 A CN201710725992 A CN 201710725992A CN 107671366 A CN107671366 A CN 107671366A
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Abstract
The embodiments of the invention provide the method and device that a kind of determination can not open up water jet trajectory on straight burr machined surface, wherein methods described includes：It is determined that each bar straight edge line on straight burr machined surface can not be opened up；For every straight edge line, the straight edge line is separated into multiple discrete points, determines average normal vector of each discrete point based on the machined surface；Determine water cutter shaft line to the processing distance of the straight edge line based on the average normal vector；The straight edge line is translated into the processing distance to the method for average vector direction, obtains water jet trajectory corresponding to the straight edge line.Method provided in an embodiment of the present invention can effectively determine the water jet trajectory path on skew ruled surface, water knife determines that water jet trajectory path carries out preliminary working to machined surface to workpiece foundation, then secondary operation is carried out again can reduce the difficulty of processing making processing more smooth, improve processing efficiency.
Description
Technical field
The present invention relates to water knife processing technique field, and water jet on straight burr machined surface can not be opened up more particularly to one kind determination
The method and device of trajectory.
Background technology
Water knife as a kind of emerging machine tooling equipment, with its efficiency high, speed is fast the advantages that obtained in various fields
Extensive use.The water-jet flow diameter of water knife processing be can not ignore, and it influences the final molding shape of machined surface.Machined surface is can
When opening up ruled surface, machined surface can be processed and formed at one time by water knife.But in water knife process, machined surface often occur can not open up
Ruled surface is to situation, and because the normal direction of each point on the bus of skew ruled surface surface is not quite similar, water knife can not be by workpiece one
Secondary machine-shaping.
In such a case, it is possible to the water jet trajectory path on skew ruled surface is planned, using water knife to workpiece
Preliminary working is carried out to machined surface according to the water jet trajectory path planned, on the premise of secondary operation is not influenceed, to the greatest extent may be used
The excision raw material of energy, retains less surplus, reduces the difficulty of secondary operation, improves the application efficiency of water knife processing.
Therefore, there is an urgent need to the technical problem of those skilled in the art's solution to be：One kind is provided and determines that can not open up straight burr adds
The scheme of water jet trajectory on work face.
The content of the invention
The embodiments of the invention provide the method and device that a kind of determination can not open up water jet trajectory on straight burr machined surface,
Overcome the above-mentioned problems in the prior art to provide or solve the above problems at least in part.
According to one aspect of the present invention, there is provided a kind of determination can not open up the side of water jet trajectory on straight burr machined surface
Method, including：It is determined that each bar straight edge line on straight burr machined surface can not be opened up；For every straight edge line, the straight edge line is separated into
Multiple discrete points, determine average normal vector of each discrete point based on the machined surface；Water knife is determined based on the average normal vector
Processing distance of the axis to the straight edge line；The straight edge line is translated into the processing distance to the method for average vector direction,
Obtain water jet trajectory corresponding to the straight edge line.
Optionally it is determined that on machined surface the step of wall scroll straight edge line, including：Foundation machine direction and water-jet flow diameter,
Processing line on the machined surface is separated into the first point set；For each point in first point set, it is determined that described
Machined surface created the first plane of the point according to the normal vector in the normal vector of the point；Determine first plane
With the intersection of the machined surface, wherein, the intersection is straight line；The distance between the intersection and adjacent straight edge line are calculated, if
The distance is more than default tolerance, then the intersection is defined as into straight edge line.
Alternatively, based on the average normal vector determine water cutter shaft line to the straight edge line processing apart from the step of, wrap
Include：Using the straight edge line as side, the side is stretched along the average normal vector, obtains the second plane with border；Meter
The multiplication cross vector of the straight edge line and the average normal vector is calculated, and is translated second plane along the multiplication cross vector
Half water-jet flow diameter obtains the 3rd plane, and second plane is carried out into translation two along the negative vector of multiplication cross vector
/ mono- water-jet flow diameter obtains fourth plane；Using the 3rd plane, the fourth plane as interception face, the processing is intercepted
Face obtains cutting curved surface；With the vector of the straight edge line for normal direction, the starting point of the straight edge line is coordinate points, and it is flat to create projection
Face；Using the starting point of the straight edge line as coordinate points, the average normal vector is direction vector, creates projection line；By the cutting
Surface tessellation is into multiple Surface tessellation points；For each Surface tessellation point, the excessively described curved surface of water jet blade periphery is determined
Distance of the water cutter shaft line to straight edge line during discrete point；From identified each water cutter shaft line into the distance of the straight edge line,
Ultimate range is searched using the ultimate range as processing distance.
Alternatively, it is described to be directed to each Surface tessellation point, determine the excessively described Surface tessellation point of water jet blade periphery
When water cutter shaft line to the straight edge line apart from the step of, including：Determine the Surface tessellation spot projection to the projection plane
In the first subpoint；By first subpoint to the projection line projection, the second subpoint and projector distance are obtained；Really
Fixed second subpoint and the spacing of the starting point of the straight edge line；According to the spacing, the projector distance and the water
Jet diameter, determine water jet blade periphery excessively the Surface tessellation point when water cutter shaft line to the straight edge line distance.
According to one aspect of the present invention, water jet trajectory on straight burr machined surface can not be opened up by additionally providing a kind of determination
Device, including：Straight edge line determining module, for determining that each bar straight edge line on straight burr machined surface can not be opened up；Average normal vector is true
Cover half block, for for every straight edge line, the straight edge line being separated into multiple discrete points, determines that each discrete point is based on described add
The average normal vector in work face；Apart from determining module, for determining water cutter shaft line to the straight edge line based on the average normal vector
Processing distance；Trajectory determining module, for by the straight edge line to the method for average vector direction translation it is described processing away from
From obtaining water jet trajectory corresponding to the straight edge line.
Alternatively, the straight edge line determining module includes：First discrete submodule, for foundation water-jet flow diameter, by institute
State the processing line on machined surface and be separated into the first point set；First plane creates submodule, for for first point set
In each point, determine normal vector of the machined surface in the point, the first flat of the point created according to the normal vector
Face；Intersection determination sub-module, for determining the intersection of first plane and the machined surface, wherein, the intersection is straight line；
Determination sub-module, for calculating the distance between the intersection and adjacent straight edge line, if the distance is more than default tolerance,
The intersection is defined as straight edge line.
Alternatively, it is described to include apart from determining module：Second plane creates submodule, for using the straight edge line as side,
The side is stretched along the average normal vector, obtains the second plane with border；3rd plane creates submodule, is used for
The multiplication cross vector of the straight edge line and the average normal vector is calculated, and is equalled second plane along the multiplication cross vector
Move half water-jet flow diameter and obtain the 3rd plane, translated second plane along the negative vector of multiplication cross vector
Half water-jet flow diameter obtains fourth plane；Intercept submodule, for using the 3rd plane, the fourth plane for section
Face is taken, the machined surface is intercepted and obtains cutting curved surface；Fourth plane creates submodule, for the vectorial for method of the straight edge line
To the starting point of the straight edge line is coordinate points, creates projection plane；Projection line creates submodule, for the straight edge line
Starting point is coordinate points, and the average normal vector is direction vector, creates projection line；Second discrete submodule, for being cut described
Surface tessellation is cut into multiple Surface tessellation points；Apart from determination sub-module, for for each Surface tessellation point, determining water jet blade
Periphery excessively the Surface tessellation point when water cutter shaft line to the straight edge line distance；Search submodule, for from really
Fixed each water cutter shaft line searches ultimate range as processing distance into the distance of the straight edge line.
Alternatively, it is described to include apart from determination sub-module：Subpoint determining unit, for determining that the Surface tessellation point is thrown
The first subpoint in shadow to the projection plane；Projector distance determining unit, for by first subpoint to the throwing
Hachure projects, and obtains the second subpoint and projector distance；Point spacing determining unit, for determining second subpoint and institute
State the spacing of the starting point of straight edge line；Distance determining unit, for according to the spacing, the projector distance and the water jet
Diameter, determine water jet blade periphery excessively the Surface tessellation point when water cutter shaft line to the straight edge line distance.
Present invention also offers a kind of electronic equipment, includes memory, and one or more than one program, its
In one or more than one program storage in memory, and be configured to by one or more than one computing device such as
Determination in claims described in any one can not open up water jet track line method on straight burr machined surface.
Present invention also offers a kind of readable storage medium storing program for executing, when the instruction in the readable storage medium storing program for executing is by electronic equipment
During computing device so that the determination that electronic equipment is able to carry out as described in any one in claims can not open up straight burr and add
Water jet track line method on work face.
Determination provided in an embodiment of the present invention can not open up the method and device of water jet trajectory on straight burr machined surface, it is determined that
Each bar straight edge line on straight burr machined surface can not be opened up；For every straight edge line, straight edge line is separated into multiple discrete points, it is determined that respectively
The average normal vector of discrete point；Determine water cutter shaft line to the processing distance of straight edge line based on average normal vector；By straight edge line to flat
Equal normal vector direction translation processing distance, obtains water jet trajectory corresponding to straight edge line.The embodiment of the present invention provides scheme can
The water jet trajectory path on skew ruled surface is effectively determined, water knife determines water jet trajectory path pair to workpiece foundation
Machined surface carries out preliminary working, then carries out secondary operation again and can reduce the difficulty of processing making processing more smooth, improves processing
Efficiency.
Described above is only the general introduction of technical solution of the present invention, in order to better understand the technological means of the present invention,
And can be practiced according to the content of specification, and in order to allow above and other objects of the present invention, feature and advantage can
Become apparent, below especially exemplified by the embodiment of the present invention.
Brief description of the drawings
By reading the detailed description of hereafter preferred embodiment, it is various other the advantages of and benefit it is common for this area
Technical staff will be clear understanding.Accompanying drawing is only used for showing the purpose of preferred embodiment, and is not considered as to the present invention
Limitation.And in whole accompanying drawing, identical part is denoted by the same reference numerals.In the accompanying drawings：
Fig. 1 is a kind of according to embodiments of the present invention one determination method that can not open up water jet trajectory on straight burr machined surface
Flow chart of steps；
Fig. 2 is a kind of according to embodiments of the present invention two determination method that can not open up water jet trajectory on straight burr machined surface
Flow chart of steps；
Fig. 3 is straight edge line arrangement schematic diagram on skew ruled surface；
Fig. 4 is straight edge line offset planes schematic diagram；
Fig. 5 is machined surface interception schematic diagram；
Fig. 6 is that water jet axial location calculates schematic diagram；
Fig. 7 is the position relationship schematic diagram of the water jet cylinder and straight edge line after skew；
Fig. 8 is water jet trajectory schematic diagram on planned machined surface；
Fig. 9 is that a kind of according to embodiments of the present invention three determination can not open up the device of water jet trajectory on straight burr machined surface
Structured flowchart；
Figure 10 is that a kind of according to embodiments of the present invention four determination can not open up the dress of water jet trajectory on straight burr machined surface
The structured flowchart put；
Figure 11 is the structured flowchart of according to embodiments of the present invention five a kind of electronic equipment.
Embodiment
The exemplary embodiment of the disclosure is more fully described below with reference to accompanying drawings.Although the disclosure is shown in accompanying drawing
Exemplary embodiment, it being understood, however, that may be realized in various forms the disclosure without should be by embodiments set forth here
Limited.On the contrary, these embodiments are provided to facilitate a more thoroughly understanding of the present invention, and can be by the scope of the present disclosure
Completely it is communicated to those skilled in the art.
Embodiment one
Reference picture 1, show that a kind of of the embodiment of the present invention one determines that water jet trajectory on straight burr machined surface can not be opened up
The step flow chart of method.
Determination in the embodiment of the present invention can not open up water jet track line method on straight burr machined surface and comprise the following steps：
Step 101：It is determined that each bar straight edge line on straight burr machined surface can not be opened up.
Water jet track line method is applied to skew ruled surface on determination machined surface in the embodiment of the present invention.
, can be according to machine direction and water-jet flow diameter, by machined surface when determining wall scroll straight edge line on machined surface
Processing line is separated into the first point set；For each point in the first point set, normal vector of the machined surface in point is determined, according to method
Vector created the first plane of the point；Determine the intersection of the first plane and machined surface；Calculate between intersection and adjacent straight edge line
Distance, if distance is more than default tolerance, the intersection is defined as straight edge line, preserves this straight edge line.If distance is less than
Or equal to default tolerance, it is determined that the intersection and adjacent straight edge line instruction same straight edge line, not to the intersection of this determination
Preserved.Wherein, intersection is straight line.
Above-mentioned flow is repeated, a determination straight edge line is taken from the first point set, until the point in the first point set is complete
Portion takes, you can determines each bar straight edge line on machined surface.Determine after each bar straight edge line on machined surface, it is necessary to for every
Straight edge line determines its corresponding water jet trajectory, has completed water jet trajectory on machined surface and has planned.Determine wall scroll straight edge line
The idiographic flow of corresponding water jet trajectory is as shown in step 102 to step 104.
Step 102：For every straight edge line, straight edge line is separated into multiple discrete points, determines that each discrete point is based on processing
The average normal vector in face.
Each discrete point is determined respectively in the machined surface normal vector, it is then determined that each normal vector be averaged be worth to the method for average to
Amount, i.e., machine direction corresponding to the straight edge line.
Step 103：Determine water cutter shaft line to the processing distance of straight edge line based on average normal vector.
Specifically can the position relationship based on curved surface near water jet cylinder and straight edge line, using project, ask friendship etc.
Means obtain water cutter shaft line to the most suitable processing distance between straight edge line.
Because the normal direction of each point on the straight edge line in the embodiment of the present invention is not quite similar, therefore water jet blade periphery
When crossing each point on straight edge line, the distance of water cutter shaft line to straight edge line is different, in order to not influence the normal work of water knife, it is thus necessary to determine that
Processing distance of the water cutter shaft line to straight edge line.On the premise of processing distance refers to that guarantee water knife does not switch to workpiece, the axis of water knife
To the minimum value of the distance of straight edge line.
Step 104：Straight edge line is translated into processing distance to method of average vector direction, obtains water-jet trajectory corresponding to straight edge line
Trace.
Idiographic flow of the step 102 to step 104 for water jet trajectory corresponding to determination wall scroll straight edge line.Specific real
During existing, due to including a plurality of straight edge line on machined surface, it is therefore desirable to repeat step 102 and determine to process to step 104
Water jet trajectory corresponding to each bar straight edge line on face.Only need to be along each bar water jet trajectory to processing during actual water knife processing
Part process for the first time, cuts off raw material as far as possible, retains less surplus, to ensure the smoothness of the second processing technology
Property.
The method of water jet trajectory on determination machined surface provided in an embodiment of the present invention, determine that each bar on machined surface is straight
Bus；For every straight edge line, straight edge line is separated into multiple discrete points, determines average normal direction of each discrete point based on machined surface
Amount；Determine water cutter shaft line to the processing distance of straight edge line based on average normal vector；Straight edge line is translated to method of average vector direction
Distance is processed, obtains water jet trajectory corresponding to straight edge line.Method provided in an embodiment of the present invention can effectively determine to open up
Water jet trajectory path on ruled surface, water knife determine that water jet trajectory path carries out just adding to machined surface to workpiece foundation
Work, then carries out secondary operation and can reduce the difficulty of processing making processing more smooth again, improves processing efficiency.
Embodiment two
Reference picture 2, show that a kind of of the embodiment of the present invention two determines that water jet trajectory on straight burr machined surface can not be opened up
The step flow chart of method.
Determination in the embodiment of the present invention can not open up water jet track line method on straight burr machined surface and comprise the following steps：
Step 201：It is determined that each bar straight edge line on straight burr machined surface can not be opened up.
Water jet track line method is applied to skew ruled surface on determination machined surface in the embodiment of the present invention.
When determining straight edge line, can by processing line on machined surface along machine direction, according to the equidistant mode of water-jet flow diameter from
Dissipate into the set Pnts of point；From Pnts off-take point P, machined surface is asked in the normal direction N of the point by point P, so as to create the point
Plane Pln；Seek the intersection Lin of Pln and machined surface.Because machined surface is skew ruled surface, Lin is straightway, therefore can be incited somebody to action
Intersection Lin is referred to as the straight edge line of machined surface.Lin and a upper straight edge line distance are sought, if being less than tolerance, it is determined that the straight edge line
It has been existed that, otherwise, this straight edge line has been preserved.
Above-mentioned flow is repeated, a determination straight edge line is taken from set Pnts, until the point in set Pnts is complete
Portion takes, you can and each bar straight edge line on machined surface is determined, obtains the set Mlines of the straight edge line of whole machined surface, its
In, straight edge line arrangement schematic diagram is as shown in Figure 3 on skew ruled surface.
Step 202：For every straight edge line, straight edge line is separated into multiple discrete points, determines that each discrete point is based on processing
The average normal vector in face.
The cut-off bus Lin in order from Mlines, straight edge line Lin is separated into a little, seeks discrete point in the machined surface method
The average value Nv of vector is the normal vector that is averaged.
It is determined that after average normal vector, water cutter shaft line is determined to the ultimate range of straight edge line based on average normal vector, specifically
Determination mode is as shown in step 203 to step 210.
Step 203：Using straight edge line as side, stretched along average normal vector opposite side, obtain the second plane with border.
Using straight edge line Lin as side, Nv is draw direction, and the stretched plane Pln with border is the second plane.
Step 204：The multiplication cross vector of straight edge line and average normal vector is calculated, and is equalled the second plane along multiplication cross vector
Move half water-jet flow diameter and obtain the 3rd plane, the second plane is subjected to translation half along the negative vector of multiplication cross vector
Water-jet flow diameter obtains fourth plane.
Obtain straight edge line Lin and Nv multiplication cross vector CrossV；Pln is translated into D/2 respectively along CrossV and-CrossV
Distance, 2 bands boundary plane Pln1, Pln2 are obtained, wherein, Pln1 is the 3rd plane, and Pln2 is fourth plane, plane Pln1,
The position relationship of Pln2 and straight edge line is as shown in straight edge line offset planes schematic diagram in Fig. 4.
Step 205：Using the 3rd plane, fourth plane as interception face, interception machined surface obtains cutting curved surface.
Curved surface Surface is obtained with parallel plane Pln1, Pln2 interception finished surface and cuts curved surface, machined surface interception is shown
It is intended to as shown in Figure 5.
Step 206：With the vector of straight edge line for normal direction, the starting point of straight edge line is coordinate points, creates projection plane.
Step 207：Using the starting point of straight edge line as coordinate points, average normal vector is direction vector, creates projection line.
Using Lin vectors as normal direction, Lin starting points PRiseFor coordinate points, projection plane projiectPlane is created；With Lin starting points
For coordinate points, Nv is direction vector, creates projection line projectLine.
Step 208：Surface tessellation will be cut into multiple Surface tessellation points.
Curved surface Surface is separated into set SPnts a little.
Step 209：For each Surface tessellation point, water cutter shaft when water jet blade periphery crosses Surface tessellation point is determined
Distance of the line to straight edge line.
One kind determines water knife when water jet blade periphery crosses Surface tessellation point preferably for each Surface tessellation point
The mode of axis to the distance of straight edge line is as follows：
First, the first subpoint in Surface tessellation spot projection to projection plane is determined.
Secondly, the first subpoint is obtained into the second subpoint and projector distance to projection line projection.
Again, the spacing of the starting point of the second subpoint and straight edge line is determined.
Finally, according to spacing, projector distance and water-jet flow diameter, determine that water jet blade periphery crosses Surface tessellation
Distance of the water cutter shaft line to straight edge line during point.
Schematic diagram is calculated referring to water jet axial location to calculate the distance of water cutter shaft line to straight edge line：From
Point P is taken to obtain subpoint projiectP1 to projiectPlane plane projections in SPnts；By projiectP1 to straight line
ProjectLine projects to obtain projiectP2, projector distance H, and it is DisP to try to achieve the distance that projiectP2 to P rises；Water
When knife cutter head periphery crosses point P, the distance S of water cutter shaft line to straight edge line Lin is：
Wherein, DisP is the spacing of the starting point of the second subpoint and straight edge line, and H is projector distance, and D is water-jet flow diameter.
Step 210：From identified each water cutter shaft line into the distance of straight edge line, search ultimate range as processing away from
From.
Repeat step 209 can determine that water jet blade periphery excessively each Surface tessellation point when water cutter shaft line to straight
The distance of bus.Thus may determine that going out multiple distances, ultimate range is found out in the embodiment of the present invention, using ultimate range as
Distance is processed, can be ensured in the case where not performing first processing smoothly, it is ensured that the material quantity retained is minimum.
Step 211：Straight edge line is translated into ultimate range to method of average vector direction, obtains water-jet trajectory corresponding to straight edge line
Trace.
Straight edge line Lin is obtained into the water blade axle centre trajectory planning line of the straight edge line to Nv directions translation Smax, after skew
The position relationship schematic diagram of water jet cylinder and straight edge line is as shown in Figure 7.
Idiographic flow of the step 202 to step 211 for water jet trajectory corresponding to determination wall scroll straight edge line.Specific real
During existing, due to including a plurality of straight edge line on machined surface, it is therefore desirable to repeat step 202 and determine to process to step 211
Water jet trajectory corresponding to each bar straight edge line on face, water jet trajectory schematic diagram is as shown in Figure 8 on the machined surface planned.
Workpiece need to only be carried out along each bar water jet trajectory processing for the first time during actual water knife processing, excision as far as possible is former
Material, retains less surplus, to ensure the fluency of the second processing technology.
The method of water jet trajectory on determination machined surface provided in an embodiment of the present invention, determine that each bar on machined surface is straight
Bus；For every straight edge line, straight edge line is separated into multiple discrete points, determines the average normal vector of each discrete point；Based on flat
Equal normal vector determines water cutter shaft line to the ultimate range of straight edge line；Straight edge line is translated into ultimate range to method of average vector direction,
Obtain water jet trajectory corresponding to straight edge line.Method provided in an embodiment of the present invention can be determined effectively on skew ruled surface
Water jet trajectory path, water knife determine that water jet trajectory path carries out preliminary working, Ran Houzai to machined surface to workpiece foundation
The difficulty that progress secondary operation can reduce processing makes processing more smooth, improves processing efficiency.
Embodiment three
Reference picture 9, show that a kind of of the embodiment of the present invention three determines that water jet trajectory on straight burr machined surface can not be opened up
The structured flowchart of device.
The determination of the embodiment of the present invention, which can not open up water jet track line apparatus on straight burr machined surface, to be included：Straight edge line determines mould
Block 301, for determining each bar straight edge line on machined surface；Average normal vector determining module 302, for for every straight edge line,
The straight edge line is separated into multiple discrete points, determines average normal vector of each discrete point based on machined surface；Apart from determining module
303, for determining water cutter shaft line to the processing distance of the straight edge line based on the average normal vector；Trajectory determining module
304, for the straight edge line to be translated into the processing distance to the method for average vector direction, obtain corresponding to the straight edge line
Water jet trajectory.
The device of water jet trajectory on determination machined surface provided in an embodiment of the present invention, determine that each bar on machined surface is straight
Bus；For every straight edge line, straight edge line is separated into multiple discrete points, determines average normal direction of each discrete point based on machined surface
Amount；Determine water cutter shaft line to the processing distance of straight edge line based on average normal vector；Straight edge line is translated to method of average vector direction
Distance is processed, obtains water jet trajectory corresponding to straight edge line.Device provided in an embodiment of the present invention can effectively determine to open up
Water jet trajectory path on ruled surface, water knife determine that water jet trajectory path carries out just adding to machined surface to workpiece foundation
Work, then carries out secondary operation and can reduce the difficulty of processing making processing more smooth again, improves processing efficiency.
Example IV
Reference picture 10, show that one kind of the embodiment of the present invention four can not open up straight burr and determine water jet trajectory on machined surface
The structured flowchart of device.
It is to institute in embodiment three that the determination of the embodiment of the present invention, which can not open up water jet track line apparatus on straight burr machined surface,
The further optimization of showing device, the device after optimization include：Straight edge line determining module 401, for determining that straight burr processing can not be opened up
Each bar straight edge line on face；Average normal vector determining module 402, for for every straight edge line, the straight edge line to be separated into
Multiple discrete points, determine average normal vector of each discrete point based on machined surface；Apart from determining module 403, for based on described flat
Equal normal vector determines water cutter shaft line to the processing distance of the straight edge line；Trajectory determining module 404, for by the straight edge line
The processing distance is translated to the method for average vector direction, obtains water jet trajectory corresponding to the straight edge line.
Preferably, the straight edge line determining module 401 includes：First discrete submodule 4011, for straight according to water jet
Footpath, the processing line on the machined surface is separated into the first point set；First plane creates submodule 4012, for for described
Each point in first point set, normal vector of the machined surface in the point is determined, was created according to the normal vector described
First plane of point；Intersection determination sub-module 4013, for determining the intersection of first plane and the machined surface, wherein,
The intersection is straight line；Determination sub-module 4014, for calculating the distance between the intersection and adjacent straight edge line, if it is described away from
From more than default tolerance, then the intersection is defined as straight edge line.
Preferably, it is described to include apart from determining module 403：Second plane create submodule, for using the straight edge line as
Side, the side is stretched along the average normal vector, obtains the second plane with border；3rd plane creates submodule,
For calculating the multiplication cross vector of the straight edge line and the average normal vector, and second plane is entered along the multiplication cross vector
Row translation half water-jet flow diameter obtains the 3rd plane, carries out second plane along the negative vector of multiplication cross vector
Translation half water-jet flow diameter obtains fourth plane；Submodule is intercepted, for the 3rd plane, the fourth plane
To intercept face, intercept the machined surface and obtain cutting curved surface；Fourth plane creates submodule, for the vector of the straight edge line
For normal direction, the starting point of the straight edge line is coordinate points, creates projection plane；Projection line creates submodule, for described straight female
The starting point of line is coordinate points, and the average normal vector is direction vector, creates projection line；Second discrete submodule, for by institute
Cutting Surface tessellation is stated into multiple Surface tessellation points；Apart from determination sub-module, for for each Surface tessellation point, determining water knife
Cutter head periphery excessively the Surface tessellation point when water cutter shaft line to the straight edge line distance；Search submodule, for from
Identified each water cutter shaft line searches ultimate range as processing distance into the distance of the straight edge line.
Preferably, it is described to include apart from determination sub-module：Subpoint determining unit, for determining that the Surface tessellation point is thrown
The first subpoint in shadow to the projection plane；Projector distance determining unit, for by first subpoint to the throwing
Hachure projects, and obtains the second subpoint and projector distance；Point spacing determining unit, for determining second subpoint and institute
State the spacing of the starting point of straight edge line；Distance determining unit, for according to the spacing, the projector distance and the water jet
Diameter, determine water jet blade periphery excessively the Surface tessellation point when water cutter shaft line to the straight edge line distance.
The device of water jet trajectory is used to realize previous embodiment one, implemented on the determination machined surface of the embodiment of the present invention
Water jet track line method on machined surface, and the beneficial effect with corresponding embodiment of the method are determined in example two accordingly,
It will not be repeated here.
Embodiment five
Reference picture 11, show the structured flowchart of a kind of electronic equipment of the embodiment of the present invention five.
Figure 11 is that one kind according to an exemplary embodiment is used to determine that water jet trajectory obtains electricity on machined surface
The structured flowchart of sub- equipment 600.
Electronic equipment, include memory, and one or more than one program, one of them or more than one
Program storage is configured to any as described in the present invention by one or more than one computing device in memory
A kind of determination can not open up the method for water jet trajectory on straight burr machined surface.
For example, electronic equipment 600 can be mobile phone, and computer, digital broadcast terminal, messaging devices, game
Console, tablet device, Medical Devices, body-building equipment, personal digital assistant etc..In the embodiment of the present invention, electronic equipment is counted
Calculation machine.
Reference picture 11, electronic equipment 600 can include following one or more assemblies：Processing component 602, memory 604,
Power supply module 606, multimedia groupware 608, audio-frequency assembly 610, the interface 612 of input/output (I/O), sensor cluster 614,
And communication component 616.
The integrated operation of the usual control electronics 600 of processing component 602, such as leads to display, call, data
The operation that letter, camera operation and record operation are associated.Treatment element 602 can include one or more processors 620 to hold
Row instruction, to complete all or part of step of above-mentioned method.In addition, processing component 602 can include one or more moulds
Block, the interaction being easy between processing component 602 and other assemblies.For example, processing component 602 can include multi-media module, with
Facilitate the interaction between multimedia groupware 608 and processing component 602.
Memory 604 is configured as storing various types of data to support the operation in equipment 600.These data are shown
Example includes the instruction of any application program or method for being operated on electronic equipment 600, contact data, telephone directory number
According to, message, picture, video etc..Memory 604 can by any kind of volatibility or non-volatile memory device or they
Combination realize, as static RAM (SRAM), Electrically Erasable Read Only Memory (EEPROM) are erasable
Programmable read only memory (EPROM), programmable read only memory (PROM), read-only storage (ROM), magnetic memory, quick flashing
Memory, disk or CD.
Power supply module 606 provides electric power for the various assemblies of electronic equipment 600.Power supply module 606 can include power supply pipe
Reason system, one or more power supplys, and other components associated with generating, managing and distributing electric power for electronic equipment 600.
Multimedia groupware 608 is included in the screen of one output interface of offer between the electronic equipment 600 and user.
In certain embodiments, screen can include liquid crystal display (LCD) and touch panel (TP).If screen includes touch surface
Plate, screen may be implemented as touch-screen, to receive the input signal from user.Touch panel includes one or more touch
Sensor is with the gesture on sensing touch, slip and touch panel.The touch sensor can not only sensing touch or slip
The border of action, but also detect the duration and pressure related to the touch or slide.In certain embodiments,
Multimedia groupware 608 includes a front camera and/or rear camera.When equipment 600 is in operator scheme, mould is such as shot
When formula or video mode, front camera and/or rear camera can receive outside multi-medium data.Each preposition shooting
Head and rear camera can be a fixed optical lens system or have focusing and optical zoom capabilities.
Audio-frequency assembly 610 is configured as output and/or input audio signal.For example, audio-frequency assembly 610 includes a Mike
Wind (MIC), when electronic equipment 600 is in operator scheme, during such as call model, logging mode and speech recognition mode, microphone
It is configured as receiving external audio signal.The audio signal received can be further stored in memory 604 or via logical
Letter component 616 is sent.In certain embodiments, audio-frequency assembly 610 also includes a loudspeaker, for exports audio signal.
I/O interfaces 612 provide interface between processing component 602 and peripheral interface module, and above-mentioned peripheral interface module can
To be keyboard, click wheel, button etc..These buttons may include but be not limited to：Home button, volume button, start button and lock
Determine button.
Sensor cluster 614 includes one or more sensors, for providing the state of various aspects for electronic equipment 600
Assess.For example, sensor cluster 614 can detect opening/closed mode of equipment 600, the relative positioning of component, such as institute
The display and keypad that component is electronic equipment 600 are stated, sensor cluster 614 can also detect electronic equipment 600 or electronics
The position of 600 1 components of equipment changes, the existence or non-existence that user contacts with electronic equipment 600, the orientation of electronic equipment 600
Or acceleration/deceleration and the temperature change of electronic equipment 600.Sensor cluster 614 can include proximity transducer, be configured to
The presence of object nearby is detected in no any physical contact.Sensor cluster 614 can also include optical sensor, such as
CMOS or ccd image sensor, for being used in imaging applications.In certain embodiments, the sensor cluster 614 can be with
Including acceleration transducer, gyro sensor, Magnetic Sensor, pressure sensor or temperature sensor.
Communication component 616 is configured to facilitate the communication of wired or wireless way between electronic equipment 600 and other equipment.
Electronic equipment 600 can access the wireless network based on communication standard, such as WiFi, 2G or 3G, or combinations thereof.Show at one
In example property embodiment, communication component 616 receives broadcast singal or broadcast from external broadcasting management system via broadcast channel
Relevant information.In one exemplary embodiment, the communication component 616 also includes near-field communication (NFC) module, short to promote
Cheng Tongxin.For example, radio frequency identification (RFID) technology, Infrared Data Association (IrDA) technology, ultra wide band can be based in NFC module
(UWB) technology, bluetooth (BT) technology and other technologies are realized.
In the exemplary embodiment, electronic equipment 600 can be computer or by one or more application specifics
Integrated circuit (ASIC), digital signal processor (DSP), digital signal processing appts (DSPD), PLD
(PLD), field programmable gate array (FPGA), controller, microcontroller, microprocessor or other electronic components are realized, are used
In the equipment for performing the above method.
In the exemplary embodiment, a kind of computer-readable recording medium including instructing is additionally provided, such as including referring to
The memory 604 of order, above-mentioned instruction can be performed to complete the above method by the processor 620 of electronic equipment 600.It is for example, described
Non-transitorycomputer readable storage medium can be ROM, random access memory (RAM), CD-ROM, tape, floppy disk and light
Data storage device etc..When computing device of the instruction in the storage medium by electronic equipment so that electronic equipment energy
Enough perform the method that the determination shown in various embodiments of the present invention can not open up water jet trajectory on straight burr machined surface.
Each embodiment in this specification is described by the way of progressive, what each embodiment stressed be with
The difference of other embodiment, between each embodiment identical similar part mutually referring to.
Determine to open up provided herein the scheme of water jet trajectory on straight burr machined surface not with any certain computer,
Virtual system or miscellaneous equipment are inherently related.Various general-purpose systems can also be used together with teaching based on this.According to
Above description, it is obvious to construct with the structure required by the system of the present invention program.In addition, the present invention also not pin
To any certain programmed language.It should be understood that the content of invention described herein can be realized using various programming languages, and
And the description done above to language-specific is to disclose the preferred forms of the present invention.
In the specification that this place provides, numerous specific details are set forth.It is to be appreciated, however, that the implementation of the present invention
Example can be put into practice in the case of these no details.In some instances, known method, structure is not been shown in detail
And technology, so as not to obscure the understanding of this description.
Similarly, it will be appreciated that in order to simplify the disclosure and help to understand one or more of each inventive aspect,
Above in the description to the exemplary embodiment of the present invention, each feature of the invention is grouped together into single implementation sometimes
In example, figure or descriptions thereof.However, the method for the disclosure should be construed to reflect following intention：I.e. required guarantor
The application claims of shield features more more than the feature being expressly recited in each claim.More precisely, such as right
As claim reflects, inventive aspect is all features less than single embodiment disclosed above.Therefore, it then follows tool
Thus claims of body embodiment are expressly incorporated in the embodiment, wherein the conduct of each claim in itself
The separate embodiments of the present invention.
Those skilled in the art, which are appreciated that, to be carried out adaptively to the module in the equipment in embodiment
Change and they are arranged in one or more equipment different from the embodiment.Can be the module or list in embodiment
Member or component be combined into a module or unit or component, and can be divided into addition multiple submodule or subelement or
Sub-component.In addition at least some in such feature and/or process or unit exclude each other, it can use any
Combination is disclosed to all features disclosed in this specification (including adjoint claim, summary and accompanying drawing) and so to appoint
Where all processes or unit of method or equipment are combined.Unless expressly stated otherwise, this specification (including adjoint power
Profit requires, summary and accompanying drawing) disclosed in each feature can be by providing the alternative features of identical, equivalent or similar purpose come generation
Replace.
In addition, it will be appreciated by those of skill in the art that although some embodiments described herein include other embodiments
In included some features rather than further feature, but the combination of the feature of different embodiments means in of the invention
Within the scope of and form different embodiments.For example, in detail in the claims, embodiment claimed it is one of any
Mode it can use in any combination.
The all parts embodiment of the present invention can be realized with hardware, or to be run on one or more processor
Software module realize, or realized with combinations thereof.It will be understood by those of skill in the art that it can use in practice
Microprocessor or digital signal processor (DSP) realize that determination according to embodiments of the present invention can not be opened up on straight burr machined surface
The some or all functions of some or all parts in the scheme of water jet trajectory.The present invention is also implemented as using
In some or all equipment or program of device for performing method as described herein (for example, computer program and meter
Calculation machine program product).Such program for realizing the present invention can store on a computer-readable medium, or can have one
The form of individual or multiple signals.Such signal can be downloaded from internet website and obtained, or above be carried in carrier signal
For, or provided in the form of any other.
It should be noted that the present invention will be described rather than limits the invention for above-described embodiment, and ability
Field technique personnel can design alternative embodiment without departing from the scope of the appended claims.In the claims,
Any reference symbol between bracket should not be configured to limitations on claims.Word "comprising" does not exclude the presence of not
Element or step listed in the claims.Word "a" or "an" before element does not exclude the presence of multiple such
Element.The present invention can be by means of including the hardware of some different elements and being come by means of properly programmed computer real
It is existing.In if the unit claim of equipment for drying is listed, several in these devices can be by same hardware branch
To embody.The use of word first, second, and third does not indicate that any order.These words can be explained and run after fame
Claim.
Claims (10)
1. a kind of determination can not open up the method for water jet trajectory on straight burr machined surface, it is characterised in that including：
It is determined that each bar straight edge line on straight burr machined surface can not be opened up；
For every straight edge line, the straight edge line is separated into multiple discrete points, determines each discrete point based on the machined surface
Average normal vector；
Determine water cutter shaft line to the processing distance of the straight edge line based on the average normal vector；
The straight edge line is translated into the processing distance to the method for average vector direction, obtains water-jet corresponding to the straight edge line
Trajectory trace.
2. according to the method for claim 1, it is characterised in that the step of determining wall scroll straight edge line on machined surface, including：
According to machine direction and water-jet flow diameter, the processing line on the machined surface is separated into the first point set；
For each point in first point set, normal vector of the machined surface in the point is determined, according to the normal direction
Amount created the first plane of the point；
The intersection of first plane and the machined surface is determined, wherein, the intersection is straight line；
The distance between the intersection and adjacent straight edge line are calculated, if the distance is more than default tolerance, by the intersection
It is defined as straight edge line.
3. according to the method for claim 1, it is characterised in that determine water cutter shaft line described in based on the average normal vector
The processing of straight edge line apart from the step of, including：
Using the straight edge line as side, the side is stretched along the average normal vector, obtains the second plane with border；
The multiplication cross vector of the straight edge line and the average normal vector is calculated, and enters second plane along the multiplication cross vector
Row translation half water-jet flow diameter obtains the 3rd plane, carries out second plane along the negative vector of multiplication cross vector
Translation half water-jet flow diameter obtains fourth plane；
Using the 3rd plane, the fourth plane as interception face, intercept the machined surface and obtain cutting curved surface；
With the vector of the straight edge line for normal direction, the starting point of the straight edge line is coordinate points, creates projection plane；
Using the starting point of the straight edge line as coordinate points, the average normal vector is direction vector, creates projection line；
By the Surface tessellation that cuts into multiple Surface tessellation points；
For each Surface tessellation point, determine water jet blade periphery excessively the Surface tessellation point when water cutter shaft line to described
The distance of straight edge line；
From identified each water cutter shaft line into the distance of the straight edge line, search ultimate range using the ultimate range as add
Work distance.
4. according to the method for claim 3, it is characterised in that it is described to be directed to each Surface tessellation point, determine water jet blade
Periphery excessively the Surface tessellation point when water cutter shaft line to the straight edge line apart from the step of, including：
Determine the first subpoint in the Surface tessellation spot projection to the projection plane；
By first subpoint to the projection line projection, the second subpoint and projector distance are obtained；
Determine second subpoint and the spacing of the starting point of the straight edge line；
According to the spacing, the projector distance and the water-jet flow diameter, determine that water jet blade periphery is excessively described
Distance of the water cutter shaft line to straight edge line during Surface tessellation point.
5. a kind of determination can not open up the device of water jet trajectory on straight burr machined surface, it is characterised in that including：
Straight edge line determining module, for determining that each bar straight edge line on straight burr machined surface can not be opened up；
Average normal vector determining module, for for every straight edge line, the straight edge line being separated into multiple discrete points, it is determined that respectively
Average normal vector of the discrete point based on the machined surface；
Apart from determining module, for determining water cutter shaft line to the processing distance of the straight edge line based on the average normal vector；
Trajectory determining module, for the straight edge line to be translated into the processing distance to the method for average vector direction, obtain
Water jet trajectory corresponding to the straight edge line.
6. device according to claim 5, it is characterised in that the straight edge line determining module includes：
First discrete submodule, for according to water-jet flow diameter, the processing line on the machined surface to be separated into the first point set；
First plane creates submodule, for for each point in first point set, determining the machined surface described
The normal vector of point, the first plane of the point was created according to the normal vector；
Intersection determination sub-module, for determining the intersection of first plane and the machined surface, wherein, the intersection is straight
Line；
Determination sub-module, for calculating the distance between the intersection and adjacent straight edge line, if the distance is more than default tolerance
Value, then be defined as straight edge line by the intersection.
7. device according to claim 5, it is characterised in that described to include apart from determining module：
Second plane creates submodule, for using the straight edge line as side, being stretched along the average normal vector to the side,
Obtain the second plane with border；
3rd plane creates submodule, for calculating the multiplication cross vector of the straight edge line and the average normal vector, and along described
Second plane is carried out translation half water-jet flow diameter and obtains the 3rd plane by multiplication cross vector, along multiplication cross vector
Second plane is carried out translation half water-jet flow diameter and obtains fourth plane by negative vector；
Submodule is intercepted, for using the 3rd plane, the fourth plane as interception face, intercepting the machined surface and being cut
Curved surface；
Fourth plane create submodule, for the straight edge line vector for normal direction, the starting point of the straight edge line is coordinate points,
Create projection plane；
Projection line creates submodule, and for using the starting point of the straight edge line as coordinate points, the average normal vector is direction vector,
Create projection line；
Second discrete submodule, for by the cutting Surface tessellation into multiple Surface tessellation points；
Apart from determination sub-module, for for each Surface tessellation point, determine the excessively described curved surface of water jet blade periphery from
Distance of the water cutter shaft line to straight edge line during scatterplot；
Submodule is searched, for, into the distance of the straight edge line, searching ultimate range conduct from identified each water cutter shaft line
Process distance.
8. device according to claim 7, it is characterised in that described to include apart from determination sub-module：
Subpoint determining unit, for determining the first subpoint in the Surface tessellation spot projection to the projection plane；
Projector distance determining unit, for first subpoint to the projection line projection, is obtained the second subpoint and
Projector distance；
Point spacing determining unit, for determining second subpoint and the spacing of the starting point of the straight edge line；
Distance determining unit, for according to the spacing, the projector distance and the water-jet flow diameter, determining water jet blade
Periphery excessively the Surface tessellation point when water cutter shaft line to the straight edge line distance.
9. a kind of electronic equipment, it is characterised in that include memory, and one or more than one program, wherein one
Individual or more than one program storage is configured to by one or more than one computing device such as right in memory
It is required that the determination in 1-4 described in any one can not open up water jet track line method on straight burr machined surface.
10. a kind of readable storage medium storing program for executing, when computing device of the instruction in the readable storage medium storing program for executing by electronic equipment, make
Electronic equipment is able to carry out the determination as described in any one in claim 1-4 and can not open up water-jet trajectory on straight burr machined surface
Trace method.
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| CN201710725992.8A CN107671366B (en) | 2017-08-22 | 2017-08-22 | A kind of determination can not open up the method and device of water jet trajectory line on straight grain machined surface |
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Effective date of registration: 20210623 Address after: 215400 No.27, Zigang Road, science and education new town, Taicang City, Suzhou City, Jiangsu Province Patentee after: NORTHWESTERN POLYTECHNICAL UNIVERSITY TAICANG YANGTZE RIVER DELTA Research Institute Address before: 200437 302, building 5, 1018 Miyun Road, Yangpu District, Shanghai Patentee before: SHANGHAI DIGITAL DESIGN TECHNOLOGY Co.,Ltd. |
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