CN108931958A - It is a kind of actively to prevent Digitized manufacturing operation room from taking over the method that knife rail interferes collision - Google Patents
It is a kind of actively to prevent Digitized manufacturing operation room from taking over the method that knife rail interferes collision Download PDFInfo
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- CN108931958A CN108931958A CN201710367713.5A CN201710367713A CN108931958A CN 108931958 A CN108931958 A CN 108931958A CN 201710367713 A CN201710367713 A CN 201710367713A CN 108931958 A CN108931958 A CN 108931958A
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- point
- process operation
- knife rail
- lathe
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B19/00—Programme-control systems
- G05B19/02—Programme-control systems electric
- G05B19/18—Numerical control [NC], i.e. automatically operating machines, in particular machine tools, e.g. in a manufacturing environment, so as to execute positioning, movement or co-ordinated operations by means of programme data in numerical form
- G05B19/19—Numerical control [NC], i.e. automatically operating machines, in particular machine tools, e.g. in a manufacturing environment, so as to execute positioning, movement or co-ordinated operations by means of programme data in numerical form characterised by positioning or contouring control systems, e.g. to control position from one programmed point to another or to control movement along a programmed continuous path
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B2219/00—Program-control systems
- G05B2219/30—Nc systems
- G05B2219/35—Nc in input of data, input till input file format
- G05B2219/35349—Display part, programmed locus and tool path, traject, dynamic locus
Abstract
The invention belongs to technical field of mechanical processing, disclosing a kind of actively prevents Digitized manufacturing operation room from taking over the method that knife rail interferes collision.To ensure that machine safety point is arranged for the purpose of any interference and collision will not occur for the round-trip knife rail between CAM programming process operation evacuation point and machine safety point, and knife rail is taken over using this round-trip knife rail as between process operation；The characteristics of according to machine tool structure and control system, design lathe avoid the NC program segment that point reaches point of safes from process operation；By developing the dedicated post processing program of lathe, realizes in the NC program generated after process operation postpositive disposal, take over position in process operation, be automatically added to avoid the NC program segment that point reaches machine safety point from process operation.This method design principle is advanced, realizes conveniently, reliably, reduces the requirement to CAM knife rail designer.The actual verification on a variety of different lathes can completely avoid and take over knife rail in Digitized manufacturing between process operation and interfere collision, realization active safety.
Description
Technical field
The invention belongs to technical fields of mechanical processing, and in particular to a kind of actively to prevent Digitized manufacturing operation room from taking over knife
The method that rail interferes collision.
Background technique
CAM programming numerical control processing is generally clamped one time and completes the NC journey generated by multiple process operations together postpositive disposal
The integrated processing of sequence, the interference and collision between lathe and process system frequent occurrence in processing.CAM programs the interference in numerical control processing
Collision is divided into two class of interference and collision for taking over knife rail inside process operation between the interference and collision and process operation of knife rail.
It, can be by coordinating between process operation to take over knife rail and interfering collision between avoiding CAM from programming process operation
Setting operation evacuation point is completed.But it can realize evacuation, not only be sweared with the position of the whole evacuation point of a upper process operation and cutter shaft
Measure it is related, but also with next process operation beginning evacuation point position and generating tool axis vector it is related, while also with machine tool structure, zero
Part clamping position is related.Specifically there is following 4 disadvantages：
1, for Multi-axis Machining, often span is big, is difficult to imagine for the knife rail of taking between process operation, by process operation
Between to coordinate setting operation evacuation point sufficiently complex, loaded down with trivial details, only be difficult to consider thoughtfully comprehensive by human brain Coordination by planning, often up to not
To ideal effect；
2, all evacuation points being arranged in process operation are relative to parts program processing zero point, with part in lathe
Clamping position on workbench, program zero point is mobile and change, to avoid the processing excess of stroke from alarming breaking working, is often avoiding point
It is all relatively conservative in the setting of position, it cannot sufficiently realize evacuation；
3, for the lathe of different structure, stroke, the setting requirements of operation evacuation point are often different, and some difference is also
It is bigger.By coordinating setting evacuation point between process operation to avoid interference with collision to be for a certain lathe, same processing behaviour
Make the NC program of the cutter orbit making versatility on different structure lathe to be very limited；
4, since the evacuation point setting of the process operation of processing different parts is different, otherness is also larger, and adjustment adds
Work also needs to adjust evacuation point according to front and back process operation demand when operating processing sequence, and heavy workload is easy forgetting, error.
Summary of the invention
The purpose of the present invention is：For specific lathe, active unified setting in advance can ensure between safe process operation
Knife rail is taken over, design forms the NC program segment of the knife rail, and this security procedure section is automatically added to CAM program process operation
Take over place, solve the problems, such as by coordinate between process operation setting evacuation point avoid interference with collision four disadvantages and, will processing behaviour
The issuable interference and collision of knife rail is taken between work and unifies prevention in advance, realizes active safety.
Technical solution of the present invention：It is a kind of actively to prevent Digitized manufacturing operation room from taking over the side that knife rail interferes collision
Method, it is characterised in that：1) machine safety point is set；2) the NC program segment that different lathes reach point of safes is designed；3) lathe is developed
Dedicated post processing program；4) by unified process operation evacuation point setting requirements setting evacuation point；5) under same program node
Multiple process operations postpositive disposal together, generate NC program and carry out integrated processing.
The machine safety point is an imaginary fixed point on lathe, a kind of one point of safes of lathe, different lathe peaces
Full point is different, to ensure that any interference and collision will not occur for the round-trip knife rail between process operation between evacuation point and machine safety point
Machine safety point is set for principle, and takes over knife rail using this round-trip knife rail as between process operation.
The NC program segment for designing different lathes and reaching point of safes：It is to select lathe coordinate system by different control systems
Statement code is positioned, the lathe for designing different structure and control system avoids the NC program that point reaches point of safes from process operation
Section.
The dedicated post processing program of lathe：It is that the cutter location data transformation of process operation knife rail can be performed at lathe
NC program.
Beneficial effects of the present invention：This method design principle is advanced, and challenge is shifted to an earlier date immobilization processing, unified to apply
Round-trip knife rail between safe process operation evacuation point and machine safety point can be ensured as taking over knife rail between process operation；
It realizes conveniently, reliably, in the case where taking over knife rail safety between ensuring to realize process operation, changes evacuation rule, unification adds
The setting method and parameter of work operation evacuation point, the setting requirements for reducing process operation evacuation point, eliminate and keep away in process operation
It allows limitation in setting about machining tool characteristic, CAM knife rail designer is made not have to the special interference considered between process operation
Collision, greatly reduces the requirement to CAM knife rail designer knowledge and ability.By the dedicated post processing program of lathe, adding
The each process operation of engineering sequence takes over position, is automatically added to respectively since process operation avoids the NC that point reaches corresponding machine safety point
Program segment.This method actual verification on a variety of different lathes, can completely avoid in Digitized manufacturing and takes between process operation
Knife rail interferes collision, realizes active safety.
Detailed description of the invention
Fig. 1 lathe interference and collision excess of stroke schematic illustration
Fig. 2 machine safety point schematic illustration
Fig. 3：Mono- turntable of W518S, one yaw, five number of axle milling machine tool main view
Fig. 4：Mono- turntable of W518S, one yaw, five number of axle milling machine tool left view
Fig. 5：Bis- five number of axle milling machine tool main views of turntable of UCP600
Fig. 6：Bis- five number of axle milling machine tool left views of turntable of UCP600
Fig. 7：DMC1035V band four number of axle milling machine tool main view of dividing head
Fig. 8：DMC1035V band four number of axle milling machine tool left view of dividing head
Specific embodiment
It elaborates with reference to the accompanying drawings of the specification to the present invention
Operation is comprising a single knife rail and to generate the data set of this knife rail information needed.The master of CAM programming
It works and exactly creates a series of various operations.CAM programming numerical control processing is generally clamped one time and completes to be added by multiple
Work operates the integrated processing for the NC program that postpositive disposal generates together, the interference between lathe and process system frequent occurrence in processing
Collision.It is indirect that interference and collision in CAM programming numerical control processing is divided into the interference and collision of knife rail and process operation inside process operation
For two class of interference and collision of knife rail.
Knife rail directly designs inside process operation, there is true Three-dimensional Display, the interference of knife rail inside process operation
Collision is only related with the parameter of this operation and evacuation geometry setting, little with machine tool structure relationship, can be sent out by tool path simulation
Existing, this partial content is also the groundwork and research contents of CAM knife rail designer, and interference and collision Processing for removing is relatively simple
It is single.
Knife rail is taken between process operation directly to be designed, and can only coordinate process operation evacuation point by unified plan come real
It is existing, the generating tool axis vector of first point of the evacuation point comprising each process operation knife rail and the point, the last one point and
Two class of generating tool axis vector of the point, we are referred to as to begin evacuation point P (n, 1) and avoid point P (n, 2) eventually.Taking over knife rail is
The whole evacuation point of a upper process operation and the beginning of next process operation avoid the excess path of point as the case may be, not any
It has been shown that, tool path simulation are not related to this partial content.Collision can be avoided interference with, not only avoids point with the end of a upper process operation
Position is related with generating tool axis vector, but also related with the position of the beginning evacuation point of next process operation and generating tool axis vector, simultaneously also
It is related with machine tool structure, parts fixation position.Its schematic illustration is shown in attached drawing 1.
The active safety that knife rail is taken between realization process operation, it is proposed that this concept of machine safety point.Lathe peace
Full point is to ensure that any interference and collision will not occur for the round-trip knife rail between process operation evacuation point and machine safety point as mesh
Setting, one on lathe imaginary fixed point.A kind of one point of safes of lathe, different machine safety points are different.From by system
One requires the process operation of setting, and evacuation is pointed out to be dealt into up to point of safes and reaching from point of safes and is arranged by uniform requirement eventually
Process operation begins to avoid point, can avoid interference with collision, machine safety point schematic illustration is shown in attached drawing 2.We will process
Round-trip knife rail between operation evacuation point and machine safety point is set as taking over knife rail between process operation.By this set,
It can ensure to realize and take over the active safety of knife rail between process operation, change simultaneously evacuation rule, unified process operation evacuation
The setting method and parameter of point, the setting requirements for reducing process operation evacuation point, eliminate and avoid in point setting in process operation
About the limitation of machining tool characteristic, the interference that knife rail is taken between making CAM knife rail designer not have to special consideration process operation is touched
It hits, greatly reduces the requirement to CAM knife rail designer knowledge and ability, knife rail can be general on different structure lathe.
Lathe coordinate system is selected to position statement code, such as G53, M92, SUPA by different control systems, design is different
The lathe of structure and control system avoids the NC program segment that point reaches point of safes from process operation；It is avoided by unified process operation
Evacuation point is arranged in point setting requirements in process operation；Multiple process operations are raw by the dedicated post processing program of lathe of exploitation
At NC program, in NC program, each process operation takes over position, is automatically added to avoid the respective lathe of point arrival from process operation
The NC program segment of point of safes.
This method actual verification on a variety of different lathes, can completely avoid in Digitized manufacturing and takes between process operation
Knife rail interferes collision, realizes active safety.
Specific embodiment：
Embodiment 1, by taking mono- turntable of W518S, one yaw, five number of axle milling machine tool as an example, invention is described in further detail：
W518S lathe zero point is X, Y, Z axis stroke direct limit point, is located at the lathe rear portion upper right corner, W518S lathe is pacified
Full point be set as with lathe zero point same position, as shown in attached drawing 3, attached drawing 4.Machine safety point is with respect to the coordinate of lathe zero point
(0,0,0), tool changing point is on the left of lathe, the tool changing under B=90 ° of state.
The NC program segment (FANUC 16M control system) that lathe avoids point arrival machine safety point from process operation is as follows：
It is from the NC program segment that process operation avoids point arrival point of safes between non-tool changing operation：
G53 Z0；... 1., Z axis returns point of safes to execution route
G53 X0 Y0；... 2., X, Y-axis return point of safes to execution route
It is from the NC program segment that process operation avoids point arrival point of safes when latter operation is tool changing operation：
G53 Z0；... 1., Z axis returns point of safes to execution route
G53 X0 Y0；... 2., X, Y-axis return point of safes to execution route
G0 B90；... B axle turns horizontal
M6 TX；... tool changing
G53 X0 Y0 Z0；... X, Y, Z axis returns point of safes
By developing the dedicated post processing program of W518S lathe, multiple process operations NC journey that postpositive disposal generates together
In sequence, position is taken in each process operation, according to tool changing and non-tool changing operation, is automatically added to accordingly avoid point from process operation
Reach the NC program segment of machine safety point.
Embodiment 2, by taking bis- five number of axle milling machine tools of turntable of UCP600 as an example, invention is described in further detail：
UCP600 lathe zero point is A, C axis intersection point, and machine safety point is set as Y, Z axis stroke direct limit point, X axis coordinate
It is identical as lathe zero point coordinate, as shown in attached drawing 5, attached drawing 6.Machine safety point with respect to lathe zero point coordinate be (0,300,
380), tool changing point is near point (0,300,300).
Lathe avoids the NC program segment (HEIDENHAIN control system) for reaching machine safety point from process operation：
1., Z axis returns point of safes to L Z380. F MAX M92 ... execution route
2., X, Y-axis return point of safes to L X0. Y300. F MAX M92 ... execution route
By developing the dedicated post processing program of UCP600 lathe, multiple process operations NC journey that postpositive disposal generates together
In sequence, position is taken in each process operation, is automatically added to accordingly avoid the NC journey that point reaches machine safety point from process operation
Sequence section.
Embodiment 3, by taking four number of axle milling machine tools of the DMC1035V with dividing head as an example, invention is described in further detail：
DMC1035V lathe zero point is X, Y, Z axis stroke direct limit point, is located at the lathe rear portion upper right corner, machine safety point
It is set as X-axis stroke negative sense limit point, Y, Z axis coordinate are identical as lathe zero point coordinate, as shown in attached drawing 7, attached drawing 8.Lathe peace
The full coordinate for putting opposite lathe zero point is (- 1035,0,0), and tool changing point is below the point of safes near 80mm.
Lathe avoids the NC program segment (SIEMENS 840D) for reaching machine safety point from process operation：
1., Z axis returns point of safes to SUPA G0 Z-5. D0 ... execution route
2., X, Y-axis return point of safes to SUPA G0 X-1035. Y-5. ... execution route
By developing the dedicated post processing program of DMC1035V lathe, multiple process operations NC that postpositive disposal generates together
In program, position is taken in each process operation, is automatically added to accordingly avoid the NC that point reaches machine safety point from process operation
Program segment.
Claims (4)
1. a kind of actively prevent Digitized manufacturing operation room from taking over the method that knife rail interferes collision, it is characterised in that：1) it sets
Set machine safety point；2) the NC program segment that different lathes reach point of safes is designed；3) the dedicated post processing program of lathe is developed；4)
By unified process operation evacuation point setting requirements setting evacuation point；5) multiple process operations under same program node together after
Processing is set, NC program is generated and carries out integrated processing.
2. according to claim 1 actively prevent Digitized manufacturing operation room from taking over the method that knife rail interferes collision,
It is characterized in that, the machine safety point is an imaginary fixed point on lathe, a kind of one point of safes of lathe, different lathes
Point of safes is different, is touched with ensuring that any interference will not occur for the round-trip knife rail between process operation between evacuation point and machine safety point
It hits and machine safety point is set for principle, and take over knife rail using this round-trip knife rail as between process operation.
3. according to claim 1 actively prevent Digitized manufacturing operation room from taking over the method that knife rail interferes collision,
It is characterized in that, the NC program segment for designing different lathes and reaching point of safes：It is to select lathe to sit by different control systems
Mark system positioning statement code, the lathe for designing different structure and control system avoid the NC journey that point reaches point of safes from process operation
Sequence section.
4. according to claim 1 actively prevent Digitized manufacturing operation room from taking over the method that knife rail interferes collision,
It is characterized in that, the dedicated post processing program of lathe：It is that can hold the cutter location data transformation of process operation knife rail at lathe
Capable NC program.
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