CN107214567B - Titanium alloy is cut by laser re cast layer removal technique - Google Patents
Titanium alloy is cut by laser re cast layer removal technique Download PDFInfo
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- CN107214567B CN107214567B CN201710544823.4A CN201710544823A CN107214567B CN 107214567 B CN107214567 B CN 107214567B CN 201710544823 A CN201710544823 A CN 201710544823A CN 107214567 B CN107214567 B CN 107214567B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B1/00—Processes of grinding or polishing; Use of auxiliary equipment in connection with such processes
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B19/00—Single-purpose machines or devices for particular grinding operations not covered by any other main group
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B47/00—Drives or gearings; Equipment therefor
- B24B47/20—Drives or gearings; Equipment therefor relating to feed movement
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B55/00—Safety devices for grinding or polishing machines; Accessories fitted to grinding or polishing machines for keeping tools or parts of the machine in good working condition
- B24B55/02—Equipment for cooling the grinding surfaces, e.g. devices for feeding coolant
- B24B55/03—Equipment for cooling the grinding surfaces, e.g. devices for feeding coolant designed as a complete equipment for feeding or clarifying coolant
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Laser Beam Processing (AREA)
- Grinding And Polishing Of Tertiary Curved Surfaces And Surfaces With Complex Shapes (AREA)
Abstract
Titanium alloy is cut by laser re cast layer removal technique, comprising the following steps: A. determines that re cast layer removes path: planning the re cast layer removal path of workpiece and is programmed to re cast layer removal device；B. it workpiece feeding: from feeding station grabbing workpiece, and is moved on the vacuum chuck of workbench；C. it determines that re cast layer removes starting point: judging whether the starting point of re cast layer removal coincides with preset initial point position, if not being overlapped, the location of workpiece is adjusted；D. it fixes workpiece: vacuum chuck being vacuumized, and imposes downward pressure to workpiece, is horizontally fixed on workpiece on vacuum chuck；E. polishing removes re cast layer: bistrique is first moved to table origin and carries out then moving to re cast layer polishing starting point to knife, opens coolant liquid, bistrique is according to the mobile polishing re cast layer of program；F. workpiece blanking: vacuum chuck is closed, grabbing workpiece is by it from movable workbench to discharge station；G. deburring processing deburring: is carried out to re cast layer removal position.
Description
Technical field
The invention belongs to laser cutting technique fields, are related to a kind of titanium alloy laser cutting re cast layer removal technique.
Background technique
Titanium alloy Metal plate is just progressing into the fields such as aerospace, electronics and automobile, and titanium-alloy sheet metal is mostly
Bending and molding materials and parts are not able to satisfy high-precision, efficient requirement using common process processing.With the hair of laser application technique
Exhibition, the features such as laser cutting of three-dimensional space curve is advanced with its, flexible, adaptable, the fields such as automobile, aerospace all
It achieves and is widely applied.Cutting stock is carried out to titanium alloy Metal plate using dimension laser cutting technology, can not only be saved
Template and tooling device are saved, the production cycle is also substantially reduced.
However, laser cutting still has an an open question so far, it is exactly that can generate weight in cut surface after being cut by laser
Cast layer, the presence of re cast layer destroy the consistency of basis material property, and micro-crack is wherein distributed with, and greatly reduce heat
The service life of components is held, constitutes the potential threat to whole equipment safety, therefore must be to re cast layer after laser cutting
It is removed the requirement for being just able to satisfy part.
It is mainly the following processing mode at present to eliminate re cast layer: 1, re cast layer being carried out using chemical acid solution
Chemical attack removal, but the removal effect of chemical minimizing technology is not thorough and can generate " inhaling hydrogen " phenomenon, it is difficult to guarantee to produce
The quality of product；2, the parameter setting of adjustment laser cutting, reduces the thickness of re cast layer to the greatest extent, makes influence drop of the re cast layer to material
To minimum, it cannot thoroughly solve, although customer requirement can be reached, but due to the unstability of laser, not ensure that material
The 100% of part is qualified, it is also necessary to corresponding metal lographic examination, but the examination and test of products is inefficient；3, direct using traditional CNC milling machine
Processing, but production cost is excessively high and inefficiency.
Those skilled in the art have good effect by the way of polishing by development test, discovery to remove re cast layer
Fruit will not only generate " inhaling hydrogen " phenomenon, but also can disposably remove.But conventional technique for grinding be to the surfaces of materials and parts into
Row polishing, and the polishing of re cast layer is polished the cut surface of materials and parts, the materials and parts of the mostly irregular structure of laser cutting,
Feed accuracy on cut surface is difficult to control using conventional technique for grinding, although re cast layer can be removed, removes double teeming
The flatness of cut surface is affected after layer, and the required precision of re cast layer removal is unable to satisfy using conventional technique for grinding, can not
Reach the quality requirement of product.
Summary of the invention
The purpose of the present invention is there is the above problem in view of the prior art, a kind of titanium alloy laser cutting double teeming is proposed
Layer removal technique, for solving the problems, such as that re cast layer removal precision is relatively low.
Object of the invention can be realized by the following technical scheme:
Titanium alloy is cut by laser re cast layer removal technique, comprising the following steps:
A. it determines that re cast layer removes path: planning the re cast layer removal path of workpiece and re cast layer removal device is compiled
Journey；
B. workpiece feeding: workpiece to be processed is grabbed from feeding station by charging and discharging mechanism, and workpiece is moved to work
Make on the vacuum chuck of platform；
C. it determines that re cast layer removes starting point: judging whether the starting point of workpiece re cast layer removal rises with set by program
Initial point position coincides, if not being overlapped, is adjusted to the location of workpiece；
D. it fixes workpiece: the vacuum chuck below workpiece being vacuumized, and workpiece is imposed downwards by charging and discharging mechanism
Pressure, be horizontally fixed on workpiece on vacuum chuck；After workpiece is fixed, charging and discharging mechanism separates with workpiece and turns to side
Side；
E. polishing removes re cast layer: bistrique is first moved to table origin and carries out then moving to re cast layer polishing to knife
Starting point opens coolant liquid, and bistrique is mobile come re cast layer of polishing according to program set by above-mentioned steps A, after completing polishing, closes
Close coolant liquid；
F. workpiece blanking: charging and discharging mechanism is moved to above workpiece, and charging and discharging mechanism first grabs workpiece, is then shut off work
The vacuum chuck for making platform separates workpiece mutually with the vacuum chuck of workbench, charging and discharging mechanism by workpiece from movable workbench to
Discharge station；
G. deburring processing deburring: is carried out to re cast layer removal position.
In above-mentioned titanium alloy laser cutting re cast layer removal technique, above-mentioned steps A is specifically included:
A.1 the simulated object of workpiece is drawn out by Computerized three-dimensional graphics software；
A.2 bistrique feature is designed: selection bistrique type, bistrique revolving speed, grinding wheel feed amount；
A.3 design double teeming layer parameter: re cast layer is segmented by selection cut surface type by straightway and curved section, if
Fixed each section of re cast layer removes thickness, forms double teeming layer parameter；
A.4 the other parameters of re cast layer removal device are designed；
A.5 generate re cast layer and remove path: setting coordinate system clicks re cast layer position by mouse, it is crucial to obtain removal
Point coordinate forms re cast layer by linear interpolation and removes path；
A.6 it programs: combining the parameter designed above and re cast layer to remove path by CNC programming software and re cast layer is gone
Except the operation of device is programmed.
In above-mentioned titanium alloy laser cutting re cast layer removal technique, profiling reference block counterweight is used in above-mentioned steps C
The starting point of cast layer removal judge and be adjusted to the location of workpiece, and the quantity of profiling reference block is four pieces, profiling benchmark
The inward flange of block is towards workpiece, and workpiece is between four pieces of profiling reference blocks, and the inward flange of every piece of profiling reference block is respectively provided with
Shape corresponding with workpiece local edge, every piece of profiling reference block, which is driven, is connected in a cylinder, successively starts cylinder, profiling base
Quasi- block is successively moved to predeterminated position and pushes workpiece mobile, removes the re cast layer of workpiece set by starting point and program and rises
Initial point coincides.
In above-mentioned titanium alloy laser cutting re cast layer removal technique, above-mentioned steps F is specific further include: charging and discharging mechanism
It is lifted up workpiece and workpiece is moved to the front side of injection tube, open blowing blower, be blown by injection tube to workpiece,
The scrap of workpiece surface attachment is removed, during blowing, charging and discharging mechanism overturns workpiece, after blowing, closes blowing
Blower, workpiece remove workbench by charging and discharging mechanism.
In above-mentioned titanium alloy laser cutting re cast layer removal technique, above-mentioned steps G uses artificial deburring or machine
Tool deburring.
In above-mentioned titanium alloy laser cutting re cast layer removal technique, the vacuum chuck in above-mentioned steps D is mounted on branch
On support, support frame is fixed on the table, and vacuum chuck is connected by tracheae with air compressor；Support frame includes two crossbeams
With multiple attachment beams, attachment beam is fixed in parallel on two crossbeams, the inner hollow of attachment beam, each equal compartment of terrain of attachment beam to
Upper protrusion has multiple supporting blocks, and the upper surface of all supporting blocks is flush；A vacuum chuck is mounted in each supporting block,
Vacuum chuck includes the disk body and the body of rod being connected, and the body of rod is connected with tracheae；The body of rod penetrates supporting block, is arranged with one outside the body of rod and connects
Head, the bottom thread of connector are connected to the bottom interior wall of attachment beam, and connector offers sliding channel, the body of rod pass through sliding channel with
Joint sliding socket, sliding channel is interior to be equipped with spring one and spring two, and spring one is set on the body of rod, and one end of spring one contradicts
In the upper end of connector, the other end of spring one contacts at the lower end of the body of rod；Spring two is in the lower section of the body of rod, spring two
One end contacts at the lower end of the body of rod, and the other end of spring two contacts at the inner wall of attachment beam；The body of rod penetrates in supporting block, vacuum
When the unadsorbed materials and parts of sucker, disk body protrudes from supporting block.
In above-mentioned titanium alloy laser cutting re cast layer removal technique, the coolant liquid in above-mentioned steps E is followed by reflux
Ring uses, and workbench has collecting tank, and support frame is in the top of collecting tank, and support frame crosses liquid channel with multiple, it is logical to cross liquid
Road and collecting tank communicate；The side of workbench is equipped with coolant liquid liquid-supplying bucket, contains coolant liquid in coolant liquid liquid-supplying bucket, in collecting tank
Equipped with the crumb loading basket that can be pushed and pulled, crumb loading basket has the filter opening passed through for coolant liquid, and collecting tank is divided into upper vallecular cavity under by crumb loading basket
Vallecular cavity, the liquid outlet of collecting tank are provided with lower vallecular cavity, and the liquid outlet of collecting tank connects screen pipe one, and screen pipe one passes through phegma
Pump connection return pipe, return pipe extend and connected to the inlet of coolant liquid liquid-supplying bucket, the liquid outlet connection of coolant liquid liquid-supplying bucket
Screen pipe two, screen pipe two connect liquid supply pipe by going out liquid liquid pump, and liquid supply pipe is fixed on the side of bistrique, the hydrojet of liquid supply pipe
Mouth is tilted towards bistrique.
In above-mentioned titanium alloy laser cutting re cast layer removal technique, coolant liquid liquid-supplying bucket includes exterior bowl and interior bucket
Body, inner drum are placed in inside exterior bowl, between inner drum and exterior bowl be equipped with groups of springs one and groups of springs two, groups of springs one it is upper
End is fixed on the bottom of inner drum, and the lower end of groups of springs one is fixed on the bottom of exterior bowl, and the bottom of inner drum offers runner,
The lower end of groups of springs two is fixed on the bottom of exterior bowl, and groups of springs two is fed through runner, and the upper end of groups of springs two is fixed with gear liquid
Ball, the outer diameter of gear liquid ball are greater than the internal diameter of runner, and return pipe connects inner drum, and liquid supply pipe connects exterior bowl.
Compared with prior art, the present invention has the advantage that:
1, re cast layer can be thoroughly removed by the way of polishing, can guarantee that the removal qualification rate of product reaches 100%,
And it can guarantee workpiece surface quality, and " inhaling hydrogen " phenomenon will not be generated；
2, the fixed workpiece by the way of vacuum chuck, reduces the damage to workpiece surface quality, and in regular worker
During part, charging and discharging mechanism imposes downward pressure to workpiece, and vacuum chuck is along sliding channel slide downward, Zhi Daozhen
The upper surface of suction disk and the upper surface of supporting block are flush, and workpiece is depressed by charging and discharging mechanism and is resisted against in supporting block, by
In the upper surface of supporting block in same level, when ensuring that vacuum chuck adsorbs fixed workpiece, workpiece is always
It is to be in horizontality, avoids workpiece run-off the straight in fixing step, conducive to high-precision when ensuring that re cast layer removes；
3, it is calibrated and is adjusted using position of the profiling reference block to workpiece, so that the re cast layer of workpiece is removed starting point and sit
Mark coincides with starting point coordinate set by program, so that it is guaranteed that workpiece and workpiece simulated object are corresponding, it is ensured that workpiece is real
The re cast layer removal position on border is consistent with the removal position of simulated object, it is ensured that the precision of re cast layer removal；
4, coolant liquid can be realized recycling, reduce production cost.
Detailed description of the invention
Fig. 1 is the process flow chart of titanium alloy laser cutting re cast layer removal technique of the invention.
Fig. 2 is the structural schematic diagram of re cast layer removal device of the invention.
Fig. 3 is the partial enlarged view of Fig. 2.
Fig. 4 is the vacuum chuck connection schematic diagram in the attachment beam of re cast layer removal device of the invention.
Fig. 5 is the top view of the workbench of re cast layer removal device of the invention.
In figure, 1, workbench；2, support frame；3, vacuum chuck；4, tracheae；5, air compressor；6, collecting tank；7, liquid is crossed
Channel；8, crossbeam；9, attachment beam；10, supporting beam；11, supporting block；12, disk body；13, the body of rod；14, connector；15, sliding channel；
16, spring one；17, spring two；18, charging and discharging mechanism；19, coolant liquid liquid-supplying bucket；20, crumb loading basket；21, upper vallecular cavity；22, lower slot
Chamber；23, screen pipe one；24, flow back liquid pump；25, return pipe；26, screen pipe two；27, go out liquid liquid pump；28, liquid supply pipe；29, it grinds
Head；30, exterior bowl；31, inner drum；32, groups of springs one；33, groups of springs two；34, runner；35, liquid ball is kept off；36, inlet tube；
37, guide rail one；38, guide rail two；39, guide rail three；40, attachment base；41, polishing motor；42, head holder；43, manipulator；44, gas
Cylinder；45, profiling reference block；46, injection tube；47, it is blown blower；48, electromagnet.
Specific embodiment
Following is a specific embodiment of the present invention in conjunction with the accompanying drawings, technical scheme of the present invention will be further described,
However, the present invention is not limited to these examples.
As shown in Figures 1 to 5, the present invention provides a kind of titanium alloy laser cutting re cast layer removal technique, including following step
It is rapid:
A. it determines that re cast layer removes path: planning the re cast layer removal path of workpiece according to workpiece shapes and re cast layer is gone
Except device is programmed, specially
A.1 the simulated object of workpiece is drawn out by Computerized three-dimensional graphics software；
A.2 29 feature of bistrique is designed: selection 29 type of bistrique, 29 revolving speed of bistrique, 29 amount of feeding of bistrique；
A.3 design double teeming layer parameter: selection work piece cut noodles type is divided re cast layer by straightway and curved section
Section sets each section of re cast layer and removes thickness, forms double teeming layer parameter；
A.4 the other parameters of re cast layer removal device are designed, other parameters refer in the device involved all kinds of
The type and operating parameter of motor, cylinder 44；
A.5 generate re cast layer and remove path: setting coordinate system clicks re cast layer position by mouse in workpiece simulated object
It sets, obtains the key point coordinate of removal, determine that re cast layer removes starting point coordinate, re cast layer is formed by linear interpolation and removes road
Diameter；
A.6 it programs: combining the parameter designed above and re cast layer to remove path by CNC programming software and re cast layer is gone
Removal process is simulated except the operation of device is programmed, and by software, and is debugged.
B. workpiece feeding: workpiece to be processed is grabbed from feeding station by charging and discharging mechanism 18, and workpiece is moved to
On the vacuum chuck 3 of workbench 1, charging and discharging mechanism 18 is also to grab fixed workpiece using 3 mode of vacuum chuck, thus reduction pair
The destruction of workpiece surface quality；
C. it determines that re cast layer removes starting point: judging whether the starting point of workpiece re cast layer removal rises with set by program
Initial point position coincides, if not being overlapped, is adjusted to the location of workpiece；
D. fix workpiece: starting air compressor vacuumizes the vacuum chuck 3 below workpiece, passes through charging and discharging mechanism 18
Imposing downward pressure to workpiece makes 3 slide downward of vacuum chuck, is resisted against workpiece in supporting block 11 and is horizontally fixed on
Vacuum chuck 3 is powered to electromagnet 48, so that vacuum chuck 3 is fixed on electromagnet 48, avoid re cast layer when removing since workpiece inclines
Tiltedly influence precision；After workpiece is fixed, charging and discharging mechanism 18 separates with workpiece and turns to side；
E. polishing removes re cast layer: bistrique 29 is first moved to 1 origin of workbench and knife is then moved to re cast layer and beaten
Starting point is ground, coolant liquid and polishing motor 41 are opened, bistrique 29 is mobile come double teeming of polishing according to program set by above-mentioned steps A
Layer after completing polishing, closes coolant liquid and polishing motor 41；
F. workpiece blanking: charging and discharging mechanism 18 is moved to above workpiece, and charging and discharging mechanism 18 first grabs workpiece, then right
Electromagnet 48 power off, separate vacuum chuck 3 with electromagnet 48, then charging and discharging mechanism 18 above mentions workpiece, make vacuum chuck 3 to
Upper sliding resets, and is then switched off air compressor, charging and discharging mechanism 18 continues above to mention workpiece, makes the vacuum of workpiece Yu workbench 1
Workpiece is moved to discharge station from workbench 1 by the separation of 3 phase of sucker, charging and discharging mechanism 18, wherein first using charging and discharging mechanism 18
The upper surface of workpiece is fixed in crawl, is then ventilated to the vacuum chuck 3 of workbench 1, can be prevented the vacuum chuck 3 of workbench 1
Upward impact is caused to workpiece after resetting suddenly, it is ensured that workpiece is realized with workbench 1 and steadily separated；
G. deburring: carrying out deburring processing to re cast layer removal position, deburring processing using artificial deburring or
Mechanical epilation thorn, after deburring, it is ensured that the surface smoothness of re cast layer removal part.
Specifically, above-mentioned bistrique 29 is formed by weight using diamond bistrique 29, titanium alloy after being cut by laser
Cast layer with a thickness of 0.04-0.08mm, in re cast layer removal process, preferably all to titanium alloy cut surface carries out complete
Portion's polishing, 29 amount of feeding of bistrique are 0.1mm, and 29 revolving speed of bistrique is 1500mm/ minutes, i.e., polish re cast layer and remove 0.1mm, work
The roughness in part polishing removal face can reach 3.2um.
Further, starting point remove to re cast layer in above-mentioned steps C using profiling reference block 45 judge and right
The location of workpiece is adjusted, and the quantity of profiling reference block 45 is four pieces, and the inward flange of profiling reference block 45 is towards workpiece, at workpiece
Between four pieces of profiling reference blocks 45, the inward flange of every piece of profiling reference block 45 is respectively provided with shape corresponding with workpiece local edge
Shape, every piece of profiling reference block 45 are driven and are connected in a cylinder 44, successively start cylinder 44, and profiling reference block 45 is successively moved to
Predeterminated position simultaneously pushes workpiece mobile, so that the re cast layer of workpiece is removed starting point and coincides with starting point set by program, from
And ensure that workpiece and workpiece simulated object are corresponding, it is ensured that the removal portion at workpiece actual re cast layer removal position and simulated object
Position is consistent, it is ensured that the precision of re cast layer removal.
Further, above-mentioned steps F is specific further include: charging and discharging mechanism 18 is lifted up workpiece and workpiece is moved to spray
The front side of blowpipe 46 is opened blowing blower 47, is blown by injection tube 46 to workpiece, and removal workpiece surface attachment is given up
Bits, during blowing, charging and discharging mechanism 18 overturns workpiece, after blowing, closes blowing blower 47, workpiece is by loading and unloading
Mechanism 18 removes workbench 1, is blown before blanking to workpiece, reduces the debris removal step after blanking to workpiece, can avoid
Dirt particles cause scratch to workpiece surface and influence the surface quality of workpiece when deburring, while ensuring that scrap is scattered in work
On platform 1, conducive to the recycling of subsequent scrap.
The re cast layer removal device that above-mentioned re cast layer removal technique uses includes workbench 1 and workpiece fixed mechanism, workpiece
Fixed mechanism includes support frame 2, vacuum chuck 3, tracheae 4 and air compressor 5, and support frame 2 is mounted on workbench 1；Vacuum
Sucker 3 is mounted on support frame 2, and upward, vacuum chuck 3 is connected by tracheae 4 with air compressor 5 vacuum chuck 3, it is also possible to
Vacuum pump substitutes air compressor 5, vacuumizes for realizing to vacuum chuck 3.
Workbench 1 has collecting tank 6, and support frame 2 is in the top of collecting tank 6, and support frame 2 crosses liquid channel 7 with multiple,
It crosses liquid channel 7 and collecting tank 6 communicates, coolant liquid can pass through liquid channel 7 and flow into collecting tank 6.Support frame 2 includes two crossbeams 8
With multiple attachment beams 9, the bottom of attachment beam 9 offers fluid hole；Attachment beam 9 is fixed in parallel on two crossbeams 8, is spaced adjacent
Two attachment beams 9 between define to form liquid channel 7, cross liquid channel 7 spacing it is equal.The inner wall of collecting tank 6 is convexly equipped with and cross
Corresponding two supporting beam 10 of beam 8, supporting beam 10 offer card slot upward, and the card of crossbeam 8 sets the card slot for being fixed on supporting beam 10,
The cross section of crossbeam 8 is T-shaped, to realize that the installation of support frame 2 is fixed.
The inner hollow of attachment beam 9, the equal compartment of terrain of each attachment beam 9 raise upward and have multiple supporting blocks 11, all supports
The upper surface of block 11 is flush；A vacuum chuck 3 is mounted in each supporting block 11, for adsorbing fixed workpiece.Specifically
Ground, vacuum chuck 3 include the disk body 12 and the body of rod 13 being connected, and the body of rod 13 is connected with tracheae 4；The body of rod 13 penetrates supporting block 11,
It is arranged with a connector 14 outside the body of rod 13, the bottom thread of connector 14 is connected to the bottom interior wall of attachment beam 9, and connector 14 offers cunning
Dynamic channel 15, the body of rod 13 pass through sliding channel 15 and are slidably socketed with connector 14, and the body of rod 13 can be slided up and down along sliding channel 15,
Spring 1 and spring 2 17 are equipped in sliding channel 15, the coefficient of elasticity of spring 2 17 is greater than the coefficient of elasticity of elasticity one, bullet
Spring 1 is set on the body of rod 13, and one end of spring 1 contacts at the inner wall of the upper end of connector 14, spring 1 it is another
End contacts at the upper surface of the lower end of the body of rod 13；Spring 2 17 is in the lower section of the body of rod 13, and one end of spring 2 17 contacts at
The lower end surface of the lower end of the body of rod 13, the other end of spring 2 17 contact at the inner wall of attachment beam 9；The ruler of the lower end of the body of rod 13
15 opening size of sliding channel of the very little upper end greater than connector 14, the body of rod 13 penetrate in supporting block 11.
It is noted that charging and discharging mechanism 18 imposes downward pressure to workpiece in above-mentioned steps D fixed workpiece,
Vacuum chuck 3 under the effect of the elastic force of spring 1 and spring 2 17, can along 15 slide downward of sliding channel of connector 14, from
And the upper surface of the disk body 12 of vacuum chuck 3 and the upper surface of supporting block 11 are flush, workpiece is by under charging and discharging mechanism 18
It is pressed onto and is resisted against in supporting block 11, since the upper surface of supporting block 11 is in same level, ensure that vacuum is inhaled
When disk 3 adsorbs fixed workpiece, workpiece is to be in horizontality always, avoids workpiece run-off the straight in fixing step, and
The bottom of attachment beam 9 is equipped with electromagnet 48, and electromagnet 48 is towards the lower end of the body of rod 13, when 3 unadsorbed workpiece of vacuum chuck, disk
Body 12 protrudes from supporting block 11, and the lower end of the body of rod 13 is not contacted with electromagnet 48, contacts at support when workpiece is pressed down
Block 11, vacuum chuck 3 adsorb workpiece, and vacuum chuck 3 slides down to conflict and arrives electromagnet 48, at this time the upper surface of disk body 12
It is just flushed with the upper surface of supporting block 11, electromagnet 48 is powered, and vacuum chuck 3 is adsorbed by electromagnet 48 to be fixed, thus beating
It grinds off during removing, vacuum chuck 3 will not generate shaking, be maintained when workpiece is by 29 active force of bistrique motionless, it is ensured that
The accuracy of re cast layer removal.
In workpiece blanking, first electromagnet 48 is powered off, so that the lower end of the body of rod 13 is separated with electromagnet 48, up and down
During material 18 grabbing workpiece of mechanism above mentions, 3 upward sliding of vacuum chuck is driven, spring 1 and spring 17 reset, disk body
12 reset to and protrude from supporting block 11, then ventilate to the vacuum chuck of support frame 3, make the lower end surface of vacuum chuck 3 Yu workpiece
Separation.
It is needed in step C using the position for adjusting workpiece to profiling reference block 45, disk body 12 protrudes from supporting block 11, makes
The lower end surface for obtaining workpiece is in contact with disk body 12, and the lower end surface and supporting block 11 for avoiding workpiece rub, and is conducive to protection
The surface quality of workpiece.
The side of workbench 1 is equipped with coolant liquid liquid-supplying bucket 19, contains coolant liquid in coolant liquid liquid-supplying bucket 19, in collecting tank 6
Equipped with the crumb loading basket 20 that can be pushed and pulled, crumb loading basket 20 be can be taken off, and crumb loading basket 20 has for filtering coolant liquid, crumb loading basket 20 for cooling
The filter opening that liquid passes through, crumb loading basket 20 divide collecting tank 6 for upper vallecular cavity 21 and lower vallecular cavity 22, and the liquid outlet of collecting tank 6 is provided with down
Vallecular cavity 22, liquid outlet connect screen pipe 1, and screen pipe 1 connects return pipe 25 by reflux liquid pump 24, and return pipe 25 extends
And it is connected to the inlet of coolant liquid liquid-supplying bucket 19, the liquid outlet of coolant liquid liquid-supplying bucket 19 connects screen pipe 2 26, screen pipe two
26 connect liquid supply pipe 28 by going out liquid liquid pump 27, and liquid supply pipe 28 is extended and possibly fixed to 29 side of bistrique, the hydrojet of liquid supply pipe 28
Mouth is tilted towards bistrique 29, and liquid supply pipe 28 provides cooling to re cast layer polishing removal face in real time with 29 synchronizing moving of bistrique
Liquid.
What coolant liquid in above-mentioned steps E after use passed through support frame 2 crosses liquid channel 7, and the scrap that while polishing generates
With coolant liquid simultaneously flow into collecting tank 6, the crumb loading basket 20 in waste liquid tank be used for coolant liquid realize primary filtration, volume compared with
Big scrap is blocked collection in crumb loading basket 20, and crumb loading basket 20 is collected conveniently, is realized while filtering to coolant liquid useless
The recycling of bits, coolant liquid realize the filtering of the second layer by screen pipe 1, and coolant liquid is under the pressure effect of reflux liquid pump 24
It is delivered back into coolant liquid liquid-supplying bucket 19 by return pipe 25, while when going out liquid to 29 feed flow of bistrique, by screen pipe two
26 third layer filtering, further removes the scrap carried in coolant liquid, it is ensured that coolant liquid can be recycled receipts and utilize, and reduce
Production cost.Crumb loading basket 20, screen pipe 1, screen pipe 2 26 filter pore size be gradually reduced.
Selectively, coolant liquid liquid-supplying bucket 19 includes exterior bowl 30 and inner drum 31, and inner drum 31 is placed in exterior bowl 30
Portion, is equipped with groups of springs 1 and groups of springs 2 33 between inner drum 31 and exterior bowl 30, the upper end of groups of springs 1 is fixed on interior
The bottom of staving 31, the lower end of groups of springs 1 are fixed on the bottom of exterior bowl 30, and the bottom of inner drum 31 offers runner 34,
The lower end of groups of springs 2 33 is fixed on the bottom of exterior bowl 30, and groups of springs 2 33 is fed through runner 34, the upper end of groups of springs 2 33
It is fixed with gear liquid ball 35, the outer diameter of gear liquid ball 35 is greater than the internal diameter of runner 34, and return pipe 25 connects inner drum 31, supplies
Liquid pipe 28 connects exterior bowl 30.Exterior bowl 30 and inner drum 31 offer inlet, and the inlet of inner drum 31 connects reflux
Pipe 25, the coolant liquid of reflux are injected into inner drum 31, and the inlet of exterior bowl 30 connects inlet tube 36, and new coolant liquid passes through
Inlet tube 36 is injected into exterior bowl 30.
Coolant liquid is full of in exterior bowl 30, what one 32 pairs of inner drums 31 of coolant liquid and groups of springs in exterior bowl 30 imposed
When upward active force is greater than the gravity of inner drum 31, gear liquid ball 35 is sealed on runner 34, and runner 34 is closed, and is returned in inner drum 31
New cooling liquid phase region is every output first uses new coolant liquid in the coolant liquid and exterior bowl 30 of stream；When cold in exterior bowl 30
But liquid gradually decreases, and the coolant liquid to flow back in inner drum 31 gradually increases, when the gravity of inner drum 31 is gradually increased, inner drum 31
Decline the groups of springs 1 that gradually reduces, gear liquid ball 35 is in the top of runner 34, and runner 34 is opened, the reflux in inner drum 31
Coolant liquid is flowed into exterior bowl 30 by runner 34, and the coolant liquid of reflux is enable to be used by output；The coolant liquid of reflux with
New coolant liquid is separated, and so that the output of coolant liquid is had selectivity, when not needing the coolant liquid using reflux, can be passed through
Inlet tube 36 keeps continuing feed liquor to exterior bowl 30, so that output is all new coolant liquid；And need the cooling using reflux
When liquid, the feed liquor of inlet tube 36 can be suspended, the coolant liquid of reflux can flow into outer with the reduction of coolant liquid in exterior bowl 30
During which staving 30 avoids original coolant liquid generation in the coolant liquid and exterior bowl 30 of reflux and mixes at once.
The re cast layer removal device has guide rail 1, guide rail 2 38 and guide rail 3 39, and guide rail 1, is led at guide rail 2 38
Rail 3 39 is mutually vertical two-by-two, the movement for realizing bistrique 29 in three X-axis, Y-axis and Z axis directions.Specifically, workbench 1
On be installed with a pair of horizontal-extending guide rail 1, support frame 2 is between two guide rails 1；It is respectively mounted on each guide rail 1
There is the guide rail longitudinally extended 2 38, screw rod one is equipped in guide rail 1, one end of screw rod one is driven the lead screw motor one that is connected,
Nut seat one is connected on screw rod one, the bottom of guide rail 2 38 is fixedly mounted on nut seat one, and lead screw motor one drives screw rod
One rotation, nut seat one drive guide rail 2 38 to slide along guide rail 1 is horizontal.
It is equipped with guide rail 3 39 between two guide rails 2 38, screw rod two, the transmission of two upper end of screw rod are longitudinally equipped in guide rail 2 38
Be connected lead screw motor two, and nut seat two is connected on screw rod two, and guide rail two to the left is fixedly mounted in the left end of guide rail 3 39
On 38 nut seat two, the right end of guide rail 3 39 is fixedly mounted on the nut seat two of the guide rail 2 38 on the right side of it, lead screw motor
Two driving screw rods two rotate, and nut seat two drives guide rail 3 39 to go up and down along guide rail 2 38.Guide rail 3 39 is equipped with attachment base 40,
Screw rod three is equipped in guide rail 3 39, one end of screw rod three is driven the lead screw motor three that is connected, is connected with nut seat three on screw rod three, even
Joint chair 40 is fixedly mounted on nut seat three, lead screw motor three drive screw rod three rotate, nut seat three drive attachment base 40 along
The horizontal sliding of guide rail 3 39.
The front side of attachment base 40 is fixed with polishing motor 41 and head holder 42, bistrique 29 are mounted on head holder 42, polishes
Motor 41 is connected with the transmission of head holder 42, and polishing motor 41 drives bistrique 29 to rotate.
The rear side of attachment base 40 is equipped with manipulator 43, and charging and discharging mechanism 18, charging and discharging mechanism are equipped on manipulator 43
18 include vacuum chuck 3, by the operation of manipulator 43, realizes charging and discharging mechanism 18 to workpiece turning.The front and back of workbench 1
Left and right four direction is respectively and fixedly provided with a cylinder 44, and cylinder 44 is in the inside of guide rail 1,44 push rod of cylinder of each cylinder 44
Be fixedly linked a profiling reference block 45, and profiling reference block 45 is in the top of support frame 2, and workpiece is placed on workbench 1
When, workpiece is between four pieces of profiling reference blocks 45, and the inward flange of every piece of profiling reference block 45 is respectively provided with and workpiece local edge
The corresponding shape of edge, cylinder 44 start, and profiling reference block 45 can push workpiece mobile under the stretching of 44 push rod of cylinder, when four
When profiling reference block 45 all fits with the corresponding position of workpiece, workpiece realizes positioning, and the re cast layer of work removes starting point
Coordinate and the preset starting point coordinate of program coincide, so that it is guaranteed that the accuracy of re cast layer removal position.
Injection tube 46 is additionally provided on workbench 1, injection tube 46 is connected with blowing blower 47, for being blown scrap.
Specific embodiment described herein is only an example for the spirit of the invention.The neck of technology belonging to the present invention
The technical staff in domain can make various modifications or additions to the described embodiments or replace by a similar method
In generation, however, it does not deviate from the spirit of the invention or beyond the scope of the appended claims.
Although workbench 1 is used more herein；Support frame 2；Vacuum chuck 3；Tracheae 4；Air compressor 5；Liquid collecting
Slot 6；Cross liquid channel 7；Crossbeam 8；Attachment beam 9；Supporting beam 10；Supporting block 11；Disk body 12；The body of rod 13；Connector 14；Sliding channel
15；Spring 1；Spring 2 17；Charging and discharging mechanism 18；Coolant liquid liquid-supplying bucket 19；Crumb loading basket 20；Upper vallecular cavity 21；Lower vallecular cavity 22；
Screen pipe 1；Flow back liquid pump 24；Return pipe 25；Screen pipe 2 26；Liquid liquid pump 27 out；Liquid supply pipe 28；Bistrique 29；Exterior bowl
30；Inner drum 31；Groups of springs 1；Groups of springs 2 33；Runner 34；Keep off liquid ball 35；Inlet tube 36；Guide rail 1；Guide rail 2 38；
Guide rail 3 39；Attachment base 40；Polishing motor 41；Head holder 42；Manipulator 43；Cylinder 44；Profiling reference block 45；Injection tube 46；
It is blown blower 47；The terms such as electromagnet 48, but it does not exclude the possibility of using other terms.It the use of these terms is only to be
It is more convenient to describe and explain essence of the invention；Being construed as any additional limitation all is and present invention essence
What mind was disagreed.
Claims (7)
1. titanium alloy is cut by laser re cast layer removal technique, which comprises the following steps:
A. it determines that re cast layer removes path: planning the re cast layer removal path of workpiece and re cast layer removal device is programmed；
B. workpiece feeding: workpiece to be processed is grabbed from feeding station by charging and discharging mechanism, and workpiece is moved to workbench
Vacuum chuck on；
C. determine re cast layer remove starting point: judge workpiece re cast layer remove starting point whether with starting point set by program
Position coincides, if not being overlapped, is adjusted to the location of workpiece；
D. it fixes workpiece: the vacuum chuck below workpiece being vacuumized, and downward pressure is imposed to workpiece by charging and discharging mechanism
Power is horizontally fixed on workpiece on vacuum chuck；After workpiece is fixed, charging and discharging mechanism separates with workpiece and turns to side；
E. polishing removes re cast layer: bistrique is first moved to table origin and carries out then moving to re cast layer polishing starting to knife
Point opens coolant liquid, and bistrique is mobile come re cast layer of polishing according to program set by above-mentioned steps A, after completing polishing, closes cold
But liquid；
F. workpiece blanking: charging and discharging mechanism is moved to above workpiece, and charging and discharging mechanism first grabs workpiece, is then shut off workbench
Vacuum chuck, separate workpiece mutually with the vacuum chuck of workbench, charging and discharging mechanism is by workpiece from movable workbench to blanking
Station；
G. deburring processing deburring: is carried out to re cast layer removal position；
On the support frame, support frame is fixed on the table, and vacuum chuck passes through tracheae for vacuum chuck installation in above-mentioned steps D
It is connected with air compressor；Support frame includes two crossbeams and multiple attachment beams, and attachment beam is fixed in parallel on two crossbeams, is connected
The inner hollow of beam, each equal compartment of terrain of attachment beam raise upward and have multiple supporting blocks, and the upper surface of all supporting blocks is flush；
A vacuum chuck is mounted in each supporting block, vacuum chuck includes the disk body and the body of rod being connected, the body of rod and tracheae phase
Even；The body of rod penetrates supporting block, is arranged with a connector outside the body of rod, the bottom thread of connector is connected to the bottom interior wall of attachment beam, connects
Head offers sliding channel, and the body of rod passes through sliding channel and joint sliding is socketed, and spring one and spring two are equipped in sliding channel,
Spring one is set on the body of rod, and one end of spring one contacts at the upper end of connector, and the other end of spring one contacts at the body of rod
Lower end；Spring two is in the lower section of the body of rod, and one end of spring two contacts at the lower end of the body of rod, and the other end of spring two contradicts
In the inner wall of attachment beam；The body of rod penetrates in supporting block, and when the unadsorbed workpiece of vacuum chuck, disk body protrudes from supporting block.
2. titanium alloy according to claim 1 is cut by laser re cast layer removal technique, which is characterized in that above-mentioned steps A tool
Body includes:
A.1 the simulated object of workpiece is drawn out by Computerized three-dimensional graphics software；
A.2 bistrique feature is designed: selection bistrique type, bistrique revolving speed, grinding wheel feed amount；
A.3 design double teeming layer parameter: re cast layer is segmented by selection cut surface type by straightway and curved section, and setting is each
Section re cast layer removes thickness, forms double teeming layer parameter；
A.4 the other parameters of re cast layer removal device are designed；
A.5 generate re cast layer and remove path: setting coordinate system clicks re cast layer position by mouse, obtains removal key point and sits
Mark forms re cast layer by linear interpolation and removes path；
A.6 it programs: combining the parameter designed above and re cast layer to remove path by CNC programming software and dress is removed to re cast layer
The operation set is programmed.
3. titanium alloy according to claim 1 is cut by laser re cast layer removal technique, which is characterized in that in above-mentioned steps C
The starting point that re cast layer removes judge and be adjusted the location of workpiece, the number of profiling reference block using profiling reference block
Amount is four pieces, and towards workpiece, workpiece is between four pieces of profiling reference blocks the inward flange of profiling reference block, every piece of profiling reference block
Inward flange be respectively provided with shape corresponding with workpiece local edge, every piece of profiling reference block, which is driven, is connected in a cylinder, according to
Secondary starting cylinder, profiling reference block are successively moved to predeterminated position and push workpiece mobile, and the re cast layer of workpiece is made to remove starting
Point coincides with starting point set by program.
4. titanium alloy according to claim 1 is cut by laser re cast layer removal technique, which is characterized in that above-mentioned steps F tool
Body further include: charging and discharging mechanism is lifted up workpiece and workpiece is moved to the front side of injection tube, opens blowing blower, passes through spray
Blowpipe is blown to workpiece, and the scrap of removal workpiece surface attachment, during blowing, charging and discharging mechanism turns over workpiece
Turn, after blowing, closes blowing blower, workpiece removes workbench by charging and discharging mechanism.
5. titanium alloy according to claim 1 is cut by laser re cast layer removal technique, which is characterized in that above-mentioned steps G is adopted
Manually deburring or mechanical epilation thorn.
6. titanium alloy according to claim 1 is cut by laser re cast layer removal technique, which is characterized in that in above-mentioned steps E
Coolant liquid used by reflux cycle, workbench has collecting tank, and support frame is in the top of collecting tank, and support frame has more
It is a to cross liquid channel, it crosses liquid channel and collecting tank communicates；The side of workbench is equipped with coolant liquid liquid-supplying bucket, storage in coolant liquid liquid-supplying bucket
There is a coolant liquid, be equipped with the crumb loading basket that can be pushed and pulled in collecting tank, crumb loading basket has a filter opening passed through for coolant liquid, and crumb loading basket is by liquid collecting
Slot is divided into vallecular cavity and lower vallecular cavity, and the liquid outlet of collecting tank is provided with lower vallecular cavity, and the liquid outlet of collecting tank connects screen pipe one, mistake
Chimney filter one connects back to flow tube by the liquid pump that flows back, and return pipe extends and connected to the inlet of coolant liquid liquid-supplying bucket, and coolant liquid supplies
The liquid outlet of liquid bucket connects screen pipe two, and screen pipe two connects liquid supply pipe by going out liquid liquid pump, and liquid supply pipe is fixed on bistrique
The mouth spray of side, liquid supply pipe is tilted towards bistrique.
7. titanium alloy according to claim 6 is cut by laser re cast layer removal technique, which is characterized in that coolant liquid liquid-supplying bucket
Including exterior bowl and inner drum, inner drum is placed in inside exterior bowl, and groups of springs one and spring are equipped between inner drum and exterior bowl
Group two, the upper end of groups of springs one is fixed on the bottom of inner drum, and the lower end of groups of springs one is fixed on the bottom of exterior bowl, inner drum
Bottom offer runner, the lower end of groups of springs two is fixed on the bottom of exterior bowl, and groups of springs two is fed through runner, groups of springs two
Upper end be fixed with gear liquid ball, gear liquid ball outer diameter be greater than runner internal diameter, return pipe connect inner drum, liquid supply pipe
Connect exterior bowl.
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| CN117047624B (en) * | 2023-10-13 | 2024-01-30 | 常州市优耐特精密钣金有限公司 | Metal plate grinding machine |
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| JPH03243261A (en) * | 1990-02-19 | 1991-10-30 | Kawasaki Steel Corp | Method for executing grinding cleaning for melt-cutting face in continuously cast slab |
| KR100640257B1 (en) * | 2005-07-16 | 2006-11-01 | 주식회사 티엔텍 | A grinder for a corner and edge of glass |
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