CN106334942B - A kind of coarse-fine spot configuration bull milling machine tool working and adaptively scan manufacturing process - Google Patents
A kind of coarse-fine spot configuration bull milling machine tool working and adaptively scan manufacturing process Download PDFInfo
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- CN106334942B CN106334942B CN201611005353.6A CN201611005353A CN106334942B CN 106334942 B CN106334942 B CN 106334942B CN 201611005353 A CN201611005353 A CN 201611005353A CN 106334942 B CN106334942 B CN 106334942B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P23/00—Machines or arrangements of machines for performing specified combinations of different metal-working operations not covered by a single other subclass
- B23P23/04—Machines or arrangements of machines for performing specified combinations of different metal-working operations not covered by a single other subclass for both machining and other metal-working operations
Abstract
Manufacturing process is scanned the present invention relates to a kind of coarse-fine spot configuration bull milling machine tool working and adaptively, belongs to mechanical manufacturing field.Y-axis component is fixed on lathe bed component, and worktable part is fixed on lathe bed component, and X-axis component is slidably connected with Y-axis component, and Z axis component is fixed on X-axis component, and tool component is slidably connected with Z axis component.Advantage is structure novel, roughing, semifinishing, finishing can be completed during time processing, shorten the overall processing time, improves production efficiency, the processing principle concentrated using process, during clamped one time, whole processing of workpiece are completed, the clamping error of workpiece reduces very much, constant force processing in process than error caused by original multiple clamping, reduce the variation of the workpiece stress deformation in process, reduces surface roughness.
Description
Technical field
The invention belongs to mechanical manufacturing fields.
Background technology
With the development of industry with the progress of science and technology, more and more industrial products are showed personalized and are complicated now
The characteristics of, it is difficult to be expressed with elementary curve and surface that many, which meets aesthetics and the solid object surface model of physics requirement,.With spline Basis
The free form surface that function interpolation is characterized becomes the first choice of product design design with its good modeling characteristic and performance,
It is widely used free form surface in such as aircraft, automobile, ship, mold industry.The use of free form surface has come many to processing
Difficulty is generally provided using multi-shaft interlocked lathe or articulated robot inside and outside its process China enough at present
Degree of freedom, to meet adaptability of the tool heads to curved surface；It is connected a plurality of track line segment approximating curve using a point, then sequentially
A plurality of curve is arranged to approach free form surface.Using from point to line, line to face approximatioss Machining Free-Form Surfaces when, forming tool
Radius of curvature, step pitch and the line-spacing of contact surface become the key factor for influencing machining accuracy and efficiency, tool radius of curvature, step pitch
Smaller with line-spacing, machining accuracy is higher, but spent time increases therewith.Current processing generally use single head tool, tool heads
Execution and driving need multiple degrees of freedom hardware mechanism.Process needs to be divided into the processes such as roughing, semifinishing, finishing
It is processed.This processing method take it is longer, programming is cumbersome, efficiency is very low.
Invention content
The present invention provides a kind of coarse-fine spot configuration bull milling machine tool working and adaptively scans manufacturing process, to solve mesh
Preceding process need to be divided into when the processes such as roughing, semifinishing, finishing are processed it is existing take it is longer, efficiency is low
The problem of.
The technical solution adopted by the present invention is that：Y-axis component is fixed on lathe bed component, and worktable part is fixed on lathe bed portion
On part, X-axis component is slidably connected with Y-axis component, and Z axis component is fixed on X-axis component, and tool component connects with the sliding of Z axis component
It connects.
The worktable part is made of 4 fixtures, the workbench for being machined with T-slot, is machined with the workbench of T-slot
It is fixed by bolts on lathe bed, is secured fixtures on workbench with T-bolt.
The Y-axis component is by Y-axis guide rail matrix, Y-axis servo motor, Y-axis ball-screw, Y-axis shaft coupling, X-axis component
Connecting plate, Y-axis the linear guide, Y-axis ball-screw bearing block, Y-axis bearing composition, Y-axis guide rail matrix are bolted on bed
With, Y-axis servo motor is bolted on Y-axis guide rail matrix, and Y-axis ball-screw is logical with Y-axis servo motor output shaft
It crosses Y-axis shaft coupling to be connected, Y-axis ball-screw both ends are supported by Y-axis bearing, and Y-axis bearing is mounted on Y-axis ball-screw bearing block seat
Among hole, Y-axis ball-screw bearing block is bolted on Y-axis guide rail matrix, and Y-axis ball-screw is connect with X-axis component
Plate is bolted on together.
The X-axis component is bolted on X-axis component connecting plate, and X-axis component is watched by X-axis guide rail matrix, X-axis
Take motor, X-axis ball-screw, X-axis shaft coupling, Z axis component connecting plate, X-axis the linear guide, X-axis ball-screw bearing block, X-axis
Bearing forms, and X-axis guide rail matrix is bolted on X-axis component connecting plate, and X-axis servo motor is bolted on
On X-axis guide rail matrix, X-axis ball-screw is connected with X-axis servo motor output shaft by X-axis shaft coupling, X-axis ball-screw both ends
It is supported by X-axis bearing, X-axis bearing is mounted among X-axis ball-screw bearing block bore, and X-axis ball-screw bearing block passes through spiral shell
Bolt is fixed on X-axis guide rail matrix, and X-axis ball-screw is bolted on together with Z axis component connecting plate.
The Z axis component is bolted on Z axis component connecting plate, and Z axis component is watched by Z axis guide rail matrix, Z axis
Take motor, Z axis ball-screw, Z axis shaft coupling, tool connecting plate, Z axis the linear guide, Z axis ball-screw bearing block, Z axis axis
It holds, Z axis fixing piece composition, Z axis fixing piece is bolted on Z axis component connecting plate, and Z axis guide rail matrix is solid by bolt
It is scheduled on Z axis fixing piece, Z axis servo motor is bolted on Z axis guide rail matrix, Z axis ball-screw and Z axis servo electricity
Machine output shaft is connected by Z axis shaft coupling, and Z axis ball-screw both ends are supported by Z axis bearing, and Z axis bearing is mounted on Z axis ball wire
Among thick stick bearing block bore, Z axis ball-screw bearing block is bolted on Z axis guide rail matrix, Z axis ball-screw and work
Tool connecting plate is bolted on together.
The tool rack component is fixed on by pinboard on tool connecting plate, lower supporting plate, upper backup pad side point
It is not fixedly connected with pinboard, seal closure is fixedly connected with lower supporting plate, upper backup pad surrounding, and 12 tool components are 3 thick
Processing group, 4 semifinishing groups, 5 finishing groups, every group of arrangement point-blank, the complete phase of composition of each tool group
Together, the size dimension of each group component part is different, and the structure of one of tool group is：Servo motor is bolted on
In support plate, for servo motor with gear shaft I by being keyed together, I lower part of gear shaft is equipped with bearing I, and bearing I is mounted on
In bearing saddle bore on lower supporting plate, hydraulic cylinder is bolted on upper backup pad, piston rod and the shaft coupling I of hydraulic cylinder
Interference fit is equipped with bearing II in shaft coupling I, and the splined shaft of ball spline I is connect with bearing II, the outer ring of ball spline I and
Gear II connects, the splined shaft of ball spline I and drill chuck by pin connection together with, tool is fixed in drill chuck.
It is a kind of that manufacturing process is adaptively scanned based on coarse-fine spot configuration bull milling machine tool working, include the following steps：
(1) theoretical model of preprocessing curved surface is established or by reconstruction theory model after scanner acquisition three-dimensional data；Respectively
The allowance A of roughing, semifinishing, finishing is setSlightly、AHalf essence、AEssence, safe distance of the tool from workpiece is ASafety, thick to add
Cutting depth is D after workSlightly, cutting depth is D after semifinishingHalf essence, cutting depth is D after finishingEssence；Then, according to ASlightly、
AHalf essence、AEssence、ASafety、DSlightly、DHalf essence、DEssence, calculate each tool of each work step Into
Row trajectory planning and the 3G codes M for generating each tool respectivelyThick i、MHalf essence j、MSmart k,The positive integer that i is 1 to 9, j
For 1 to 12 positive integer, the allowance of the positive integer that k is 1 to 15, the blank of workpiece is ABlank, the allowance after roughing
ASlightly, the allowance A after semifinishingHalf essence, the allowance A after finishingEssence, safe distance of the cutter from workpiece is ASafety, slightly
The cutting depth of processing is DSlightly, semi-finished cutting depth is DHalf essence, the cutting depth of finishing is DEssence, cutter is axial every time
The time cycle of feeding is T；Finally, each tool executes oneself individual 3G code, until machining；
2) trajectory planning and the control of processing and implementation process tool：If the cutting width of tool rack is W, the work when starting processing
Tool is processed along workpiece Z-axis decline, and when tool processes are to designated position, tool is raised to safe altitude, tool rack along
Lathe coordinate system X-axis positive direction carries out movement certain distance, and then cutter is cut along Z axis decline, when starting processing, only
There is roughing tool being processed, as tool rack is moved along lathe coordinate system X-axis positive direction, can necessarily make to own
Tool is processed simultaneously, and when X-direction processing is at the end, roughing tool first leaves workpiece surface, as tool rack is along machine
Bed coordinate system X-axis positive direction is moved, and semifinishing tool, finisher machine successively, leave the processing of workpiece
Surface, then, tool rack rise to a certain safe height along Z axis positive direction, and then tool rack retracts the starting point of X-axis,
For tool rack along the width direction displacement distance λ W of tool rack, 0 λ≤1 ＜ repeats the above process process, until free song
The all surfaces in face are processed and complete, and process terminates.
The method have the advantages that structure novel, can complete roughing, semifinishing, finishing during time processing, contracting
The short overall processing time improves production efficiency, and the processing principle concentrated using process completes work during clamped one time
The clamping error of whole processing of part, workpiece reduces much than error caused by original multiple clamping, permanent in process
Power is processed, and the variation of the workpiece stress deformation in process is reduced, and reduces surface roughness.
Description of the drawings
Fig. 1 is the structural schematic diagram of the present invention；
Fig. 2 is the structural schematic diagram of bed piece and workbench of the present invention；
Fig. 3 a are the structural schematic diagrams of Y-axis component of the present invention；
Fig. 3 b are the structural schematic diagrams that Y-axis of the present invention splits component；
Fig. 4 a are the structural schematic diagrams of X-axis component of the present invention；
Fig. 4 b are the structural schematic diagrams of X-axis component of the present invention；
Fig. 5 a are the structural schematic diagrams of Z axis component in part of the present invention；
Fig. 5 b are the structural schematic diagrams of whole Z axis component of the invention；
Fig. 6 a are the structural schematic diagrams of inventive article frame；
Fig. 6 b are the structural schematic diagrams of inventive article frame removal seal closure；
Fig. 6 c are the structural schematic diagrams of inventive article group；
Fig. 6 d are inventive article group and upper backup pad, the structural schematic diagram of lower supporting plate；
In figure：
Lathe bed 1；The workbench 201 of T-slot；T-bolt 202；Fixture 203；Y-axis guide rail matrix 301；Y-axis servo motor
302；Y-axis shaft coupling 303；Y-axis the linear guide 304；Y-axis ball-screw bearing block 305；Y-axis ball-screw 306；Y-axis bearing
307；X-axis component connecting plate 308；X-axis guide rail matrix 401；X-axis servo motor 402；X-axis shaft coupling 403；X-axis the linear guide
404；X-axis ball-screw bearing block 405；X-axis ball-screw 406；X-axis bearing 407；Z axis component connecting plate 408；Z axis fixing piece
501；Z axis guide rail matrix 502；Z axis the linear guide 503；Z axis ball-screw 504；Z axis ball-screw bearing block 505；Z axis bearing
506；Z axis shaft coupling 507；Z axis servo motor 508；Tool connecting plate 509；Seal closure 601；Upper backup pad 602；Lower supporting plate
603；Pinboard 604；Hydraulic cylinder 605；Shaft coupling I 606；Ball spline I 607；Gear II 608；Pin 609；Drill chuck 610；Work
Tool 611；Servo motor 612；Gear shaft I 613；Bearing I 614；Bearing II 615.
Specific implementation mode
Y-axis component 3 is fixed on lathe bed component 1, and worktable part 2 is fixed on lathe bed component 1, X-axis component 4 and Y-axis
Component 3 is slidably connected, and Z axis component 5 is fixed on X-axis component, and tool component 6 is slidably connected with Z axis component 5.
The worktable part 2 is made of 4 fixtures 203, the workbench 201 for being machined with T-slot, is machined with T-slot
Workbench be fixed by bolts on lathe bed 1, secured fixtures on workbench with T-bolt 202.
The Y-axis component 3 is by Y-axis guide rail matrix 301, Y-axis servo motor 302, Y-axis ball-screw 306, Y-axis shaft coupling
Device 303, X-axis component connecting plate 308, Y-axis the linear guide 304, Y-axis ball-screw bearing block 305, Y-axis bearing 307 form, Y-axis
Guide rail matrix 301 is bolted on lathe bed 1, and Y-axis servo motor 302 is bolted in Y-axis guide rail matrix 301
On, Y-axis ball-screw 306 is connected with 302 output shaft of Y-axis servo motor by Y-axis shaft coupling 303,306 liang of Y-axis ball-screw
End is supported by Y-axis bearing 307, and Y-axis bearing 307 is mounted among 305 bore of Y-axis ball-screw bearing block, Y-axis ballscrew shaft
Bearing 305 is bolted on Y-axis guide rail matrix 301, and Y-axis ball-screw 306 passes through spiral shell with X-axis component connecting plate 308
Bolt is fixed together.
The X-axis component 4 is bolted on X-axis component connecting plate 308, and X-axis component 4 is by X-axis guide rail matrix
401, X-axis servo motor 402, X-axis ball-screw 406, X-axis shaft coupling 403, Z axis component connecting plate 408, X-axis the linear guide
404, X-axis ball-screw bearing block 405, X-axis bearing 407 form, and X-axis guide rail matrix 401 is bolted on X-axis component company
On fishplate bar 308, X-axis servo motor 402 is bolted on X-axis guide rail matrix 401, X-axis ball-screw 406 and X-axis
402 output shaft of servo motor is connected by X-axis shaft coupling 403, and 406 both ends of X-axis ball-screw are supported by X-axis bearing 407, X-axis
Bearing 407 is mounted among 405 bore of X-axis ball-screw bearing block, and X-axis ball-screw bearing block 405 is bolted on X
On axis rail matrix 401, X-axis ball-screw 406 is bolted on together with Z axis component connecting plate 408.
The Z axis component 5 is bolted on Z axis component connecting plate 408, and Z axis component 5 is by Z axis guide rail matrix
502, Z axis servo motor 508, Z axis ball-screw 504, Z axis shaft coupling 507, tool connecting plate 509, Z axis the linear guide 503, Z
Axis ball-screw bearing block 505, Z axis bearing 506, Z axis fixing piece 501 form, and Z axis fixing piece 501 is bolted on Z axis
On component connecting plate 408, Z axis guide rail matrix 502 is bolted on Z axis fixing piece 501, and Z axis servo motor 508 passes through
It is bolted on Z axis guide rail matrix 502, Z axis ball-screw 504 passes through Z axis shaft coupling with 508 output shaft of Z axis servo motor
507 are connected, and 504 both ends of Z axis ball-screw are supported by Z axis bearing 506, and Z axis bearing 506 is mounted on Z axis ball-screw bearing block
Among 505 bore, Z axis ball-screw bearing block 505 is bolted on Z axis guide rail matrix 502, Z axis ball-screw 504
It is bolted on together with tool connecting plate 509.
The tool rack component 6 is fixed on by pinboard 604 on tool connecting plate 509, lower supporting plate 603, upper branch
602 side of fagging is fixedly connected with pinboard 604 respectively, and seal closure 601 is fixed with lower supporting plate 603,602 surrounding of upper backup pad
Connection, 12 tool components are 3 roughing groups, 4 semifinishing groups, 5 finishing groups, and every group is arranged in straight line
On, the composition of each tool group is identical, and the size dimension of each group component part is different, the structure of one of tool group
It is：Servo motor 612 is bolted on upper backup pad 602, and servo motor 612 is existed with gear shaft I 613 by key connection
Together, I 613 lower part of gear shaft is equipped with bearing I 614, and bearing I 614 is mounted in the bearing saddle bore on lower supporting plate 603, liquid
Cylinder pressure 605 is bolted on upper backup pad 602, and piston rod and the shaft coupling I 606 of hydraulic cylinder 605 are interference fitted, shaft coupling
Bearing II 615 is housed, the splined shaft of ball spline I 607 is connect with bearing II 615, the outer ring of ball spline I 607 in device I 606
It is connect with gear II 608, the splined shaft of ball spline I 607 is linked together with drill chuck 610 by pin 609, and tool 611 is solid
It is scheduled in drill chuck 610, is sports immunology below, the output torque of servo motor 612 passes through gear shaft I 613, gear shaft
I 613 carry out transmission campaign with gear II 608 by gear engaged transmission, gear II 608 by due to ball spline I 607
Outer ring is connected, and gear II 608 drives the splined shaft rotation of ball spline I 607, due to the splined shaft and work of ball spline I 607
Tool 611 is fixed together by drill chuck 610, the final power biography realized servo motor 612 and arrive the rotary motion of tool 611
It passs.The piston rod of hydraulic cylinder 605 is moved accordingly under the control of corresponding electro-hydraulic proportional valve, the piston rod of hydraulic cylinder 605
It is fixed together with shaft coupling I 606, bearing II 615 is in shaft coupling I 606, splined shaft and the bearing II of ball spline I 607
Together, the other end and tool 611 of the splined shaft of ball spline I 607 are solid by drill chuck 610 for 615 inner ring interference fit
It connects together, finally when the piston rod stretching motion of hydraulic cylinder 605, tool 611 is moved along hydraulic cylinder axis therewith.
The movement of Y-axis component 3 is realized by screw pair, and the output torque of Y-axis servo motor 302 passes through Y-axis
Shaft coupling 303 passes to Y-axis ball-screw 306, and rotary motion is changed into linear motion by Y-axis ball-screw 306, final to realize
The control of displacement in the Y-direction of tool rack 6.As shown in Fig. 4 a and Fig. 4 b, Fig. 5 a and Fig. 5 b, the Bit andits control on X, Z-direction
It is identical as the control principle in Y direction.
Adaptively manufacturing process is scanned based on coarse-fine spot configuration bull milling machine tool working, it is characterised in that：Including under
Row step：
(1) theoretical model of preprocessing curved surface is established or by reconstruction theory model after scanner acquisition three-dimensional data；Respectively
The allowance A of roughing, semifinishing, finishing is setSlightly、AHalf essence、AEssence, safe distance of the tool from workpiece is ASafety, thick to add
Cutting depth is D after workSlightly, cutting depth is D after semifinishingHalf essence, cutting depth is D after finishingEssence；Then, according to ASlightly、
AHalf essence、AEssence、ASafety、DSlightly、DHalf essence、DEssence, calculate each tool of each work step Into
Row trajectory planning and the 3G codes M for generating each tool respectivelyThick i、MHalf essence j、MSmart k,
I is 1 to 9
The allowance of positive integer, the positive integer that j is 1 to 12, the positive integer that k is 1 to 15, the blank of workpiece is ABlank, after roughing
Allowance ASlightly, the allowance A after semifinishingHalf essence, the allowance A after finishingEssence, safe distance of the cutter from workpiece
For ASafety, rough machined cutting depth is DSlightly, semi-finished cutting depth is DHalf essence, the cutting depth of finishing is DEssence, cutter
The time cycle of each axial feed is T；Finally, each tool executes oneself individual 3G code, until machining；
2) trajectory planning and the control of processing and implementation process tool：If the cutting width of tool rack is W, the work when starting processing
Tool is processed along workpiece Z-axis decline, and when tool processes are to designated position, tool is raised to safe altitude, tool rack along
Lathe coordinate system X-axis positive direction carries out movement certain distance, and then cutter is cut along Z axis decline, when starting processing, only
There is roughing tool being processed, as tool rack is moved along lathe coordinate system X-axis positive direction, can necessarily make to own
Tool is processed simultaneously, and when X-direction processing is at the end, roughing tool first leaves workpiece surface, as tool rack is along machine
Bed coordinate system X-axis positive direction is moved, and semifinishing tool, finisher machine successively, leave the processing of workpiece
Surface, then, tool rack rise to a certain safe height along Z axis positive direction, and then tool rack retracts the starting point of X-axis,
For tool rack along the width direction displacement distance λ W of tool rack, 0 λ≤1 ＜ repeats the above process process, until free song
The all surfaces in face are processed and complete, and process terminates.
The determination of working depth：
If the allowance of the blank of workpiece is ABlank, the allowance A after roughingSlightly, the allowance after semifinishing
AHalf essence, the allowance A after finishingEssence, safe distance of the cutter from workpiece is ASafety, rough machined cutting depth is DSlightly, half essence
The cutting depth of processing is DHalf essence, the cutting depth of finishing is DEssence, the time cycle of each axial feed of cutter is T, if starting
Before processing, all cutter bottoms in the same plane, if workpiece blank be cuboid.
If thinking guarantee cutter, stress is constant in process, it is necessary to assure every axial working depth cutter is constant.
Under equal conditions, the axial working depth of cutter is got over hour, and the precision of processing is higher.
It calculates every the cutter arrival ideal position required time
(positive integer that i is 1 to 9)
(positive integer that j is 1 to 12)
(positive integer that k is 1 to 15)
tmax=max (tThick i, tHalf essence j, tSmart k)
So
(positive integer that i is 1 to 9)
(positive integer that j is 1 to 12)
(positive integer that k is 1 to 15)
It can guarantee all cutters while machining, and each cutting depth is identical, cutting force is essentially identical, protects
The surface quality of card processing part.
Claims (6)
1. a kind of coarse-fine spot configuration bull milling machine tool working, it is characterised in that：Y-axis component is fixed on lathe bed component, work
Platform component is fixed on lathe bed component, and X-axis component is slidably connected with Y-axis component, and Z axis component is fixed on X-axis component, tool part
Part is slidably connected with Z axis component；
The tool component is fixed on by pinboard on tool connecting plate, lower supporting plate, upper backup pad side respectively with switching
Plate is fixedly connected, and seal closure is fixedly connected with lower supporting plate, upper backup pad surrounding, and 12 tool components are 3 roughing groups, 4
A semifinishing group, 5 finishing groups, point-blank, the composition of each tool group is identical for every group of arrangement, each group group
Different at the size dimension of part, the structure of one of tool group is：Servo motor is bolted on upper backup pad,
For servo motor with gear shaft I by being keyed together, I lower part of gear shaft is equipped with bearing I, and bearing I is mounted in lower supporting plate
On bearing saddle bore in, hydraulic cylinder is bolted on upper backup pad, and piston rod and I interference of shaft coupling of hydraulic cylinder are matched
It closes, bearing II is housed in shaft coupling I, the splined shaft of ball spline I is connect with bearing II, outer ring and the gear II of ball spline I
Connection, the splined shaft of ball spline I and drill chuck by pin connection together with, tool is fixed in drill chuck.
2. a kind of coarse-fine spot configuration bull milling machine tool working according to claim 1, it is characterised in that：Worktable part
It is made of 4 fixtures, the workbench for being machined with T-slot, the workbench for being machined with T-slot is fixed by bolts on lathe bed, uses T-type
Bolt secures fixtures on workbench.
3. a kind of coarse-fine spot configuration bull milling machine tool working according to claim 1, it is characterised in that：Y-axis component is by Y
Axis rail matrix, Y-axis servo motor, Y-axis ball-screw, Y-axis shaft coupling, X-axis component connecting plate, Y-axis the linear guide, Y-axis rolling
Ballscrew bearing block, Y-axis bearing composition, Y-axis guide rail matrix are bolted on lathe bed, and Y-axis servo motor passes through bolt
It is connected on Y-axis guide rail matrix, Y-axis ball-screw is connected with Y-axis servo motor output shaft by Y-axis shaft coupling, Y-axis ball wire
Thick stick both ends are supported by Y-axis bearing, and Y-axis bearing is mounted among Y-axis ball-screw bearing block bore, Y-axis ball-screw bearing block
It is bolted on Y-axis guide rail matrix, Y-axis ball-screw is bolted on together with X-axis component connecting plate.
4. a kind of coarse-fine spot configuration bull milling machine tool working according to claim 1, it is characterised in that：X-axis component is logical
It crosses bolt to be fixed on X-axis component connecting plate, X-axis component is by X-axis guide rail matrix, X-axis servo motor, X-axis ball-screw, X-axis
Shaft coupling, Z axis component connecting plate, X-axis the linear guide, X-axis ball-screw bearing block, X-axis bearing composition, X-axis guide rail matrix are logical
It crosses bolt to be fixed on X-axis component connecting plate, X-axis servo motor is bolted on X-axis guide rail matrix, X-axis ball
Leading screw is connected with X-axis servo motor output shaft by X-axis shaft coupling, and X-axis ball-screw both ends are supported by X-axis bearing, X-axis bearing
Among X-axis ball-screw bearing block bore, X-axis ball-screw bearing block is bolted on X-axis guide rail matrix,
X-axis ball-screw is bolted on together with Z axis component connecting plate.
5. a kind of coarse-fine spot configuration bull milling machine tool working according to claim 1, it is characterised in that：Z axis component is logical
It crosses bolt to be fixed on Z axis component connecting plate, Z axis component is by Z axis guide rail matrix, Z axis servo motor, Z axis ball-screw, Z axis
Shaft coupling, tool connecting plate, Z axis the linear guide, Z axis ball-screw bearing block, Z axis bearing, Z axis fixing piece composition, Z axis are fixed
Part is bolted on Z axis component connecting plate, and Z axis guide rail matrix is bolted on Z axis fixing piece, Z axis servo
Motor is bolted on Z axis guide rail matrix, and Z axis ball-screw passes through Z axis shaft coupling phase with Z axis servo motor output shaft
Even, Z axis ball-screw both ends are supported by Z axis bearing, and Z axis bearing is mounted among Z axis ball-screw bearing block bore, Z axis rolling
Ballscrew bearing block is bolted on Z axis guide rail matrix, and Z axis ball-screw is bolted on tool connecting plate
Together.
6. a kind of adaptively scanning manufacturing process based on coarse-fine spot configuration bull milling machine tool working described in claim 1,
It is characterized in that：Include the following steps：
(1) theoretical model of preprocessing curved surface is established or by reconstruction theory model after scanner acquisition three-dimensional data；It is respectively set
The allowance A of roughing, semifinishing, finishingSlightly、AHalf essence、AEssence, safe distance of the tool from workpiece is ASafety, after roughing
Cutting depth is DSlightly, cutting depth is D after semifinishingHalf essence, cutting depth is D after finishingEssence；Then, according to ASlightly、AHalf essence、AEssence、
ASafety、DSlightly、DHalf essence、DEssence, calculate each tool of each work step Into
Row trajectory planning and the 3G codes M for generating each tool respectivelyThick i、MHalf essence j、MSmart k,The positive integer that i is 1 to 9, j
For 1 to 12 positive integer, the allowance of the positive integer that k is 1 to 15, the blank of workpiece is ABlank, the allowance after roughing
ASlightly, the allowance A after semifinishingHalf essence, the allowance A after finishingEssence, safe distance of the cutter from workpiece is ASafety, slightly
The cutting depth of processing is DSlightly, semi-finished cutting depth is DHalf essence, the cutting depth of finishing is DEssence, cutter is axial every time
The time cycle of feeding is T；Finally, each tool executes oneself individual 3G code, until machining；
2) trajectory planning and the control of processing and implementation process tool：If the cutting width of tool rack is W, the tool edge when starting processing
It workpiece Z-axis decline to be processed, when tool processes are to designated position, tool is raised to safe altitude, and tool rack is along lathe
Coordinate system X-axis positive direction carries out movement certain distance, and then cutter is cut along Z axis decline, when starting processing, only slightly
Machining tool is being processed, and as tool rack is moved along lathe coordinate system X-axis positive direction, can necessarily make all tools
It processes simultaneously, when X-direction processing is at the end, roughing tool first leaves workpiece surface, as tool rack is sat along lathe
Mark system X-axis positive direction is moved, and semifinishing tool, finisher machine successively, leaves the finished surface of workpiece,
Then, tool rack rises to a certain safe height along Z axis positive direction, and then tool rack retracts the starting point of X-axis, tool rack
Along the width direction displacement distance λ W of tool rack, 0 λ≤1 ＜ repeats the above process process, complete until free form surface
Portion surface is processed and completes, and process terminates.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611005353.6A CN106334942B (en) | 2016-11-15 | 2016-11-15 | A kind of coarse-fine spot configuration bull milling machine tool working and adaptively scan manufacturing process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611005353.6A CN106334942B (en) | 2016-11-15 | 2016-11-15 | A kind of coarse-fine spot configuration bull milling machine tool working and adaptively scan manufacturing process |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106334942A CN106334942A (en) | 2017-01-18 |
| CN106334942B true CN106334942B (en) | 2018-09-28 |
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ID=57841931
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611005353.6A Active CN106334942B (en) | 2016-11-15 | 2016-11-15 | A kind of coarse-fine spot configuration bull milling machine tool working and adaptively scan manufacturing process |
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| Country | Link |
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| CN109129158B (en) * | 2018-10-30 | 2023-06-02 | 吉林大学 | Precise milling and grinding machine tool based on parallel tool system and control method thereof |
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| CN102581707A (en) * | 2012-03-09 | 2012-07-18 | 吉林大学 | Five-axis electrorheological polishing equipment with integrated type electrode tool |
| CN202640100U (en) * | 2012-06-01 | 2013-01-02 | 苏州恒远精密数控设备有限公司 | Vertical and horizontal numerical control machine tool |
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