CN105798734A - Polishing device and method for mould free curved surface - Google Patents
Polishing device and method for mould free curved surface Download PDFInfo
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- CN105798734A CN105798734A CN201610147306.9A CN201610147306A CN105798734A CN 105798734 A CN105798734 A CN 105798734A CN 201610147306 A CN201610147306 A CN 201610147306A CN 105798734 A CN105798734 A CN 105798734A
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- polishing
- shaft
- curved surface
- wheel
- elastic grindstone
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Classifications
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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
- B24B19/20—Single-purpose machines or devices for particular grinding operations not covered by any other main group for grinding dies
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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
- B24B29/00—Machines or devices for polishing surfaces on work by means of tools made of soft or flexible material with or without the application of solid or liquid polishing agents
- B24B29/02—Machines or devices for polishing surfaces on work by means of tools made of soft or flexible material with or without the application of solid or liquid polishing agents designed for particular workpieces
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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
- B24B41/00—Component parts such as frames, beds, carriages, headstocks
- B24B41/02—Frames; Beds; Carriages
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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
- B24B47/10—Drives or gearings; Equipment therefor for rotating or reciprocating working-spindles carrying grinding wheels or workpieces
- B24B47/12—Drives or gearings; Equipment therefor for rotating or reciprocating working-spindles carrying grinding wheels or workpieces by mechanical gearing or electric power
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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
- B24B49/00—Measuring or gauging equipment for controlling the feed movement of the grinding tool or work; Arrangements of indicating or measuring equipment, e.g. for indicating the start of the grinding operation
- B24B49/02—Measuring or gauging equipment for controlling the feed movement of the grinding tool or work; Arrangements of indicating or measuring equipment, e.g. for indicating the start of the grinding operation according to the instantaneous size and required size of the workpiece acted upon, the measuring or gauging being continuous or intermittent
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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
- G05B19/4097—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 using design data to control NC machines, e.g. CAD/CAM
- G05B19/4099—Surface or curve machining, making 3D objects, e.g. desktop manufacturing
Abstract
The invention discloses a polishing device and method for a mould free curved surface. The polishing device comprises a rotary frame connected in a machine shell. The rotary frame is provided with an outer gear ring. The outer gear ring is provided with a spindle and an auxiliary shaft. The spindle is connected with a bearing. The auxiliary shaft is connected with an auxiliary shaft gear in a meshing mode and driven by a servo motor. The spindle is connected with a mechanical arm electric spindle and connected with a reversing shaft through a bevel gear set. The reversing shaft is connected with a short shaft and a polishing wheel shaft through a variable gear pair. The polishing wheel shaft is connected with an elastic mould polishing wheel. The rotation movement of the spindle is converted into the autorotation movement of the polishing wheel through a bevel gear pair and the variable gear pair. The auxiliary shaft is driven by the servo motor. The outer gear ring on the rotary frame is driven by the auxiliary shaft gear. In this way, rotation of the whole rotary frame is achieved, and thus revolution movement of the polishing wheel round the spindle is generated. According to the polishing device and polishing method for the mould free curved surface, during polishing of the mould free curved surface, a large area of profiling contact is formed between the polishing wheel and a machining face, the adaptability is high, the normal contact force is stable, and materials in a polishing contact area can be removed fast and uniformly. The machining precision is high, the process is easy to achieve, and the cost is low.
Description
Technical field
The present invention relates to die surface Finishing field, be specifically related to novel die free-form surface polishing device and finishing method.
Background technology
Mould is the important process equipment in commercial production, is the effective tool of industrial products batch production.In the design of mould, manufacture, roughing in polish and last polishing process, owing to the outward appearance in surface roughness and the mold use life-span of mould, goods is in close relations, therefore as the polishing process of last one, just becoming more and more important.Particularly in Modern mould manufacture, owing to the cavity design of mould is increasingly sophisticated, free form surface proportion is continuously increased, and mold machining technology is proposed requirements at the higher level.
Application due to numerical control, spark machined and CAD/CAM system, the shape processing of die curve substantially can realize automatization, but current automatization's polishing mode is only limitted to the processing of simple profile, is applied to mold freedom curved surface and all there is certain defect.The polishing of current mold freedom curved surface is mainly completed by its rich experiences by skilled worker.The technology of workman is not only required height by this, cumbersome and time consuming, and the surface quality stability after curved surface polishing is difficult to ensure that.Especially in polishing final stage, may result in scrapping of mould if going wrong, causing very big economic loss.The time of current polishing accounts for the 30% of whole secondary Making mold time, becomes the bottleneck in die manufacture.
Summary of the invention
In order to overcome above-mentioned the deficiencies in the prior art, one of the object of the invention is to provide a kind of mold freedom curved surface burnishing device, larger area profiling can be formed with finished surface to contact, strong adaptability, normal direction contact force is stable, polishing contact area material Quick uniform can be realized remove, can be used for the polishing of the high-efficient automatic of mold freedom curved surface.
It is a further object of the present invention to provide a kind of mold freedom curved surface finishing method, the method belongs to deterministic theory method, it is act on workpiece to be added with elastic grindstone polishing tool with certain pressure and speed, makes the workpiece surface figure accuracy after processing reach a kind of fixing abrasive grain polishing method of requirement.
It is an object of the invention to be realized by following technical proposals.
A kind of mold freedom curved surface burnishing device, including casing, and the pivoted frame being connected to by thrust bearing in casing, pivoted frame is provided with external toothing, and external toothing is provided with the main shaft of bearing connection and the countershaft of Meshing Pair shaft gear connection；Described countershaft is by the driven by servomotor being fixed in casing, described main shaft is connected above the electro spindle of mechanical arm or machining center, pass under bevel gear group to engage each other and be connected with reversing shaft, reversing shaft is engaged each other by change gear pair and is connected with short axle and polishing wheel shaft, and polishing wheel shaft connects elastic grindstone buff wheel.
Further, described bevel gear group includes the main shaft bevel gear being connected with main shaft and the reversing shaft bevel gear being connected with reversing shaft, and the torque of electro spindle is passed to reversing shaft through main shaft after engaging each other by main shaft bevel gear and reversing shaft bevel gear.
Further, described change gear pair includes the reversing shaft gear being connected with reversing shaft and the short shaft gear being connected with short axle, and with the polishing buff wheel shaft gear that is connected of wheel shaft, change-speed gearing adjutant's torque is forwarded to polishing wheel shaft, and the convert rotational motion of main shaft is the spinning motion of elastic grindstone buff wheel the most at last.
Further, the pivoted frame being connected in casing by thrust bearing extends to below casing, the reversing shaft being connected with the bevel gear group below main shaft, short axle and polishing wheel shaft is fixed；The external toothing on pivoted frame is driven to realize the rotary motion of pivoted frame by countershaft gear, thus producing the elastic grindstone buff wheel revolution motion around main shaft.
Further, described pivoted frame is up big and down small structure, connects short axle and the pivoted frame thereunder eccentric setting of polishing wheel shaft, and elastic grindstone buff wheel is positioned at eccentric pivoted frame sidepiece, elastic grindstone buff wheel is spherical or Round Wheel, and its centre of sphere or its circle wheel radial centrage are with main shaft on the same axis.
Further, described elastic grindstone buff wheel is the elastic grindstone of set different grain size abrasive particle.
Further, the radius of curvature of described elastic grindstone buff wheel is less than the minimum profile curvature radius of wanted polishing abrasive tool free form surface.
Correspondingly, the present invention and then give a kind of mold freedom curved surface finishing method, comprise the steps:
First, 1) by the roughness value on high-precision surface roughness concentration instrument Measurement die surface, current coarseness data is obtained；
2) coarseness data is compared with intended roughness value, obtain the material removal amount reached required for this polishing cycle；
3) select burnishing parameters, according to intended material removal amount, by the final polish results of computer simulation, if polish results does not reach requirement, then reselect burnishing parameters, be calculated machine simulation again；
4) repetition step 3), until the polish results of simulation meets the requirements, polishing simulation kinematic parameter is changed into the control file of mechanical arm or numerical control machining center, and is sent to mechanical arm or numerical control machining center control system；
5) mechanical arm or numerical control machining center Ore-controlling Role read in and perform to control file, drive mechanical arm or each motion of numerical control machining center and mold freedom curved surface burnishing device to run according to certain parameter；
6) mold freedom curved surface burnishing device is fixed on mechanical arm or numerical control machining center end, opens the servomotor being fastened in casing, drive countershaft linkage main axis；Remain that the axis direction of main shaft overlaps with the normal orientation at center, polishing contact area；
7) regulate the distance at elastic grindstone buff wheel center and center, polishing contact area, control elastic grindstone buff wheel volume under pressure, to ensure the uniform removal of material in polishing process；
8) adopt composite revolving polishing processes polishing free form surface, meet Preston equation:
Δ h=kPV
Material removal amount in formula, in the Δ h representation unit time；K is technological coefficient, the factor beyond machined material, elastic grindstone buff wheel kind, rotating speed, polishing contact area temperature and polish pressure determine；V is the instant grinding speed of surface, polishing contact area certain point；P is polish pressure；
9) elastic grindstone buff wheel is while polishing wheel shaft rotation, also revolves round the sun around main shaft, and polishing wheel shaft is vertical with main shaft, and the elastic grindstone buff wheel centre of sphere is positioned on two axle intersection points；Wherein spinning motion provides the quick removal of surfacing, and revolution motion changes polishing locus direction, obtains uniform polishing locus；
10) after this polishing cycle completes, again detect coarseness data with detecting instrument, provide coarseness data for next polishing cycle；So iterate, until obtaining satisfactory mold surface roughness value.
Further, elastic grindstone buff wheel spin velocity ω 2 and the ratio of revolution angular velocity omega 1 are less than 50.
Novel die free-form surface polishing device provided by the present invention, by the motor control of mechanical arm or multiple degrees of freedom machining center, it may be achieved the high-efficient automatic polishing of mold freedom curved surface；Spherical or Round Wheel buff wheel instrument composite revolving moves, and polishing locus can be made uniformly unordered；Having elastic fixation abrasive grain buff wheel, can form larger area profiling with mold freedom curved surface and contact, strong adaptability, normal direction contact force is stable, it may be achieved polishing contact area material Quick uniform is removed.This burnishing device has machining accuracy height, technique realizes simple, low cost and other advantages.
This mold freedom curved surface finishing method key problem is exactly material removal amount, removes function, residence time and path planning and relation between.As long as polishing process is correctly described, suitable these parameters of control just can control the removal amount of material.
The advantage of finishing method of the present invention is in that polishing process is automatically controlled by computer control system, and quality of finish is controlled, stable, and machining accuracy is high, technique realizes simply, cost is low.
Accompanying drawing explanation
Fig. 1 is the installation site schematic diagram of mold freedom curved surface burnishing device, for mechanical arm.A is this burnishing device, and b is mechanical arm schematic diagram；
Fig. 2 is the outline drawing of mold freedom curved surface burnishing device；
Fig. 3 is the cut-away view of mold freedom curved surface burnishing device.
Fig. 4 is the schematic diagram that elastic grindstone buff wheel does composite revolving motion, and grain motion trajectory schematic diagram in polishing contact area.The wherein revolution angular velocity of ω 1 buff wheel, ω 2 is the spin velocity of buff wheel.
Fig. 5 is the flow chart of this mold freedom curved surface finishing method.
Description of reference numerals:
1, countershaft；11, countershaft gear；2, main shaft；21, main shaft bevel gear；22, reversing shaft bevel gear；23, reversing shaft；3, external toothing；31, thrust bearing；4, casing；41, reversing shaft gear；42, short shaft gear；43, short axle；44, buff wheel shaft gear；45, polishing wheel shaft；5, pivoted frame；6, elastic grindstone buff wheel.
Detailed description of the invention
Below in conjunction with drawings and Examples, the present invention is described in further details.
Fig. 1 of the present invention is the installation site schematic diagram that mold freedom curved surface burnishing device is positioned on mechanical arm, for mechanical arm.A is this burnishing device, and b is mechanical arm schematic diagram；Fig. 2, Fig. 3 show mold freedom curved surface burnishing device, as figure includes main shaft 2, countershaft 1, servomotor, pivoted frame 5 and external toothing 3, casing 4, main shaft bevel gear 21, reversing shaft bevel gear 22, reversing shaft gear 41, short shaft gear 42, buff wheel shaft gear 44 and elastic grindstone buff wheel 6.
As shown in Figure 3, this device includes casing 4 and the pivoted frame 5 being arranged in casing 4, and pivoted frame 5 is arranged in casing 4 by thrust bearing 31, and pivoted frame 5 is provided with the main shaft 2 that bearing connects, and the external toothing 3 on pivoted frame 5 is engaged in countershaft gear 11；Main shaft 2 is connected above the electro spindle of mechanical arm or machining center, pass under main shaft bevel gear 21 to engage reversing shaft bevel gear 22 and be connected with reversing shaft 23, reversing shaft 23 engages short shaft gear 42 by reversing shaft gear 41 and is connected with short axle 43, short shaft gear 42 engages buff wheel shaft gear 44 and is connected with polishing wheel shaft 45, and polishing wheel shaft 45 connects elastic grindstone buff wheel 6.
As shown in Figure 3, main shaft 2 connects the electro spindle of mechanical arm or machining center, the torque of electro spindle passes to reversing shaft 23 through main shaft 2 by bevel gear pair (main shaft bevel gear 21, reversing shaft bevel gear 22), again through change gear pair (reversing shaft gear 41, short shaft gear 42, buff wheel shaft gear 44), torque being forwarded to polishing wheel shaft 45, the convert rotational motion of main shaft 2 is the spinning motion of elastic grindstone buff wheel 6 the most at last；The pivoted frame 5 being connected in casing 4 by thrust bearing 31 extends to below casing 4, the reversing shaft 23 being connected with the bevel gear group below main shaft 2, short axle 43 and polishing wheel shaft 45 is fixed；Countershaft 1, by the driven by servomotor being fixed in casing 4, engages the external toothing 3 on pivoted frame 5 by countershaft gear 11, it is achieved rotating thus producing the elastic grindstone buff wheel 6 revolution motion around main shaft of pivoted frame 5 entirety.
Pivoted frame 5 is up big and down small structure, connect short axle 43 and the pivoted frame 5 thereunder eccentric setting of polishing wheel shaft 45, elastic grindstone buff wheel 6 is positioned at eccentric pivoted frame sidepiece, and elastic grindstone buff wheel 6 is spherical or Round Wheel, and its centre of sphere or its circle wheel radial centrage are with main shaft 2 on the same axis.Elastic grindstone buff wheel 6 fast changeable.
As shown in Figure 1, device a is fixed on mechanical arm b or machining center end, in mold polish process, remains that the axis direction of main shaft 2 overlaps with polishing contact area normal orientation；The radius of curvature of elastic grindstone buff wheel 6 is less than the minimum profile curvature radius of wanted polishing abrasive tool free form surface, according to parameters such as polished surface radius of curvature and materials, regulate the distance at elastic grindstone buff wheel 6 center and center, polishing contact area, control elastic grindstone buff wheel 6 volume under pressure, to ensure the uniform removal of material in polishing process.
See shown in Fig. 1,3,4, the elastic grindstone buff wheel 6 of device a adopts composite revolving polishing processes, the motion of elastic grindstone buff wheel 6 is composited by two rotary motions, the rotating shaft of the two rotary motion is spatially mutually perpendicular to, namely elastic grindstone buff wheel 6 is while polishing wheel shaft 45 rotates, also rotating around main shaft 2, polishing wheel shaft 45 is vertical with main shaft 2, and the elastic grindstone buff wheel centre of sphere is positioned on two axle intersection points.The spinning motion of compound motion respectively elastic grindstone buff wheel 6 and revolution motion, wherein spinning motion provides the quick removal of surfacing, and revolution motion changes polishing locus direction, obtains uniform polishing locus, polishing contact area material is uniformly removed, as shown in Figure 4.
See Fig. 3, shown in 4, spin velocity ω 2 and the revolution angular velocity omega 1 of elastic grindstone buff wheel 6 all can rely on the rotating speed of main shaft 2 and servomotor to be adjusted respectively, different rotating ratios is adopted according to different operating modes, but rotating ratio is always irrational number, so that polishing locus height disordering, improve surface of polished quality.Rotating ratio numerical value is measured by specific experiment, rotational velocity and revolution speed all can rely on the rotating speed of main shaft 2 and servomotor to be adjusted respectively, adopt different rotating ratios according to different operating modes, but rotating ratio is always irrational number, so that polishing locus height disordering, improve surface of polished quality.Elastic grindstone buff wheel spin velocity ω 2 and the ratio of revolution angular velocity omega 1 are less than 50 in principle.
See Fig. 3, shown in 4, the elastic grindstone of fixation abrasive grain is adopted for the elastic grindstone buff wheel 6 of the personal curved surface polishing of mould, it is the polishing material being solidify to form by uniform abrasive particle and binding agent, there is certain elasticity, make elastic grindstone buff wheel form the profiling contact of larger area when contacting with mold freedom curved surface, improve polishing efficiency and quality；Elastic grindstone buff wheel 6 can be changed easily, and have plurality of specifications available, curvature according to the mold freedom curved surface to polish adopts the buff wheel of different-diameter, but remains the radius of curvature minimum profile curvature radius less than wanted polishing abrasive tool free form surface of buff wheel.Adopt varigrained buff wheel according to the different polishing stages, but in principle along with the reduction of polished surface roughness, select the buff wheel of smaller particle size immediately.
As shown in Figure 5, a kind of mold freedom curved surface finishing method provided by the present invention, it is broadly divided into following several stages:
First, 1) by the roughness value on high-precision surface roughness concentration instrument Measurement die surface, current coarseness data is obtained；
2) coarseness data is compared with intended roughness value, obtain the material removal amount reached required for this polishing cycle；
3) select burnishing parameters, according to intended material removal amount, by the final polish results of computer simulation, if polish results does not reach requirement, then reselect burnishing parameters, be calculated machine simulation again；
4) repetition the 3rd) step, until the polish results of simulation meets the requirements, polishing simulation kinematic parameter is changed into the control file of mechanical arm or numerical control machining center, and is sent to mechanical arm or numerical control machining center control system；
5) mechanical arm or numerical control machining center Ore-controlling Role read in and perform to control file, drive mechanical arm or each motion of numerical control machining center and mold freedom curved surface burnishing device to run according to certain parameter；
6) mold freedom curved surface burnishing device is fixed on mechanical arm or numerical control machining center end, opens the servomotor being fastened in casing, drive countershaft linkage main axis；Remain that the axis direction of main shaft overlaps with the normal orientation at center, polishing contact area；
7) regulate the distance at elastic grindstone buff wheel center and center, polishing contact area, control elastic grindstone buff wheel volume under pressure, to ensure the uniform removal of material in polishing process；
8) adopting composite revolving polishing processes polishing free form surface, meet Preston equation, it establishes the linear relationship between material removal amount, polish pressure, polishing velocity and condition element:
Δ h=kPV
Material removal amount in formula, in the Δ h representation unit time；K is technological coefficient, the factor beyond machined material, elastic grindstone buff wheel kind, rotating speed, polishing contact area temperature and polish pressure determine；V is the instant grinding speed of surface, polishing contact area certain point, and the rotation with elastic grindstone buff wheel is relevant with revolution speed；P is polish pressure, relevant with the volume under pressure of elastic grindstone buff wheel, specific experiment measure；
9) elastic grindstone buff wheel is while polishing wheel shaft rotation, also revolves round the sun around main shaft, and polishing wheel shaft is vertical with main shaft, and the elastic grindstone buff wheel centre of sphere is positioned on two axle intersection points；Wherein spinning motion provides the quick removal of surfacing, and revolution motion changes polishing locus direction, obtains uniform polishing locus；
10) after this polishing cycle completes, again detect coarseness data with detecting instrument, provide coarseness data for next polishing cycle；So iterate, until obtaining satisfactory mold surface roughness value.
Inventive die free-form surface polishing device a compares traditional mold freedom curved surface polishing mode remarkable advantage.Mold freedom curved surface burnishing device a provided by the present invention, by the motor control of mechanical arm b or multiple degrees of freedom machining center, it may be achieved automatization's polishing of mold freedom curved surface；The composite revolving motion of elastic grindstone buff wheel 6, can make polishing locus uniformly unordered；Having elastic fixation abrasive grain buff wheel, can form larger area profiling with mold freedom curved surface and contact, strong adaptability, normal direction contact force is stable, it may be achieved polishing contact area material Quick uniform is removed.This burnishing device has machining accuracy height, technique realizes simple, low cost and other advantages.
Certainly, the above is only the better embodiment of the present invention, therefore all equivalences done according to the structure described in present patent application scope, feature and principle change or modify, and are all included within the scope of present patent application.
Claims (9)
1. a mold freedom curved surface burnishing device, it is characterized in that, including casing (4), with the pivoted frame (5) being connected to by thrust bearing (31) in casing (4), pivoted frame (5) is provided with external toothing (3), and external toothing (3) is provided with main shaft (2) and the countershaft (1) that connects of Meshing Pair shaft gear (11) that bearing connects；Described countershaft (1) is by the driven by servomotor being fixed in casing (4), described main shaft (2) is connected above the electro spindle of mechanical arm or machining center, pass under bevel gear group to engage each other and be connected with reversing shaft (23), reversing shaft (23) is engaged each other by change gear pair and is connected with short axle (43) and polishing wheel shaft (45), and polishing wheel shaft (45) connects elastic grindstone buff wheel (6).
2. a kind of mold freedom curved surface burnishing device according to claim 1, it is characterized in that, described bevel gear group includes the main shaft bevel gear (21) being connected with main shaft (2) and the reversing shaft bevel gear (22) being connected with reversing shaft (23), and the torque of electro spindle is passed to reversing shaft (23) through main shaft (2) after engaging each other by main shaft bevel gear (21) and reversing shaft bevel gear (22).
3. a kind of mold freedom curved surface burnishing device according to claim 1, it is characterized in that, described change gear pair includes the reversing shaft gear (41) being connected with reversing shaft (23) and the short shaft gear (42) being connected with short axle (43), and with polishing wheel shaft (45) the buff wheel shaft gear (44) that is connected, change-speed gearing adjutant's torque is forwarded to polishing wheel shaft (45), the spinning motion that convert rotational motion is elastic grindstone buff wheel (6) of main shaft (2) the most at last.
4. a kind of mold freedom curved surface burnishing device according to claim 3, it is characterized in that, the pivoted frame (5) being connected in casing (4) by thrust bearing (31) extends to casing (4) lower section, the reversing shaft (23), short axle (43) and polishing wheel shaft (45) that are connected with the bevel gear group of main shaft (2) lower section is fixed；The external toothing (3) on pivoted frame (5) is driven to realize the rotary motion of pivoted frame (5) by countershaft gear (11), thus producing the elastic grindstone buff wheel (6) revolution motion around main shaft.
5. a kind of mold freedom curved surface burnishing device according to claim 1, it is characterized in that, described pivoted frame (5) is up big and down small structure, connect short axle (43) and pivoted frame (5) the thereunder eccentric setting of polishing wheel shaft (45), elastic grindstone buff wheel (6) is positioned at eccentric pivoted frame sidepiece, elastic grindstone buff wheel (6) is spherical or Round Wheel, and its centre of sphere or its circle wheel radial centrage are with main shaft (2) on the same axis.
6. a kind of mold freedom curved surface burnishing device according to claim 1, it is characterised in that the elastic grindstone that described elastic grindstone buff wheel (6) is set different grain size abrasive particle.
7. a kind of mold freedom curved surface burnishing device according to claim 1, it is characterised in that the radius of curvature of described elastic grindstone buff wheel (6) is less than the minimum profile curvature radius of wanted polishing abrasive tool free form surface.
8. a mold freedom curved surface finishing method, it is characterised in that comprise the steps:
First, 1) by the roughness value on high-precision surface roughness concentration instrument Measurement die surface, current coarseness data is obtained；
2) coarseness data is compared with intended roughness value, obtain the material removal amount reached required for this polishing cycle；
3) select burnishing parameters, according to intended material removal amount, by the final polish results of computer simulation, if polish results does not reach requirement, then reselect burnishing parameters, be calculated machine simulation again；
4) repetition step 3), until the polish results of simulation meets the requirements, polishing simulation kinematic parameter is changed into the control file of mechanical arm or numerical control machining center, and is sent to mechanical arm or numerical control machining center control system；
5) mechanical arm or numerical control machining center Ore-controlling Role read in and perform to control file, drive mechanical arm or each motion of numerical control machining center and mold freedom curved surface burnishing device to run according to certain parameter；
6) mold freedom curved surface burnishing device is fixed on mechanical arm or numerical control machining center end, opens the servomotor being fastened in casing, drive countershaft linkage main axis；Remain that the axis direction of main shaft overlaps with the normal orientation at center, polishing contact area；
7) regulate the distance at elastic grindstone buff wheel center and center, polishing contact area, control elastic grindstone buff wheel volume under pressure, to ensure the uniform removal of material in polishing process；
8) adopt composite revolving polishing processes polishing free form surface, meet Preston equation:
Δ h=kPV
Material removal amount in formula, in the Δ h representation unit time；K is technological coefficient, the factor beyond machined material, elastic grindstone buff wheel kind, rotating speed, polishing contact area temperature and polish pressure determine；V is the instant grinding speed of surface, polishing contact area certain point；P is polish pressure；
9) elastic grindstone buff wheel is while polishing wheel shaft rotation, also revolves round the sun around main shaft, and polishing wheel shaft is vertical with main shaft, and the elastic grindstone buff wheel centre of sphere is positioned on two axle intersection points；Wherein spinning motion provides the quick removal of surfacing, and revolution motion changes polishing locus direction, obtains uniform polishing locus；
10) after this polishing cycle completes, again detect coarseness data with detecting instrument, provide coarseness data for next polishing cycle；So iterate, until obtaining satisfactory mold surface roughness value.
9. a kind of mold freedom curved surface finishing method according to claim 8, it is characterised in that the ratio of elastic grindstone buff wheel spin velocity ω 2 and revolution angular velocity omega 1 is less than 50.
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| CN201610147306.9A CN105798734B (en) | 2016-03-15 | 2016-03-15 | A kind of mold freedom curved surface burnishing device and polishing method |
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| CN201610147306.9A CN105798734B (en) | 2016-03-15 | 2016-03-15 | A kind of mold freedom curved surface burnishing device and polishing method |
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| CN105798734B CN105798734B (en) | 2017-11-28 |
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| CN109129177A (en) * | 2018-07-20 | 2019-01-04 | 中国科学院西安光学精密机械研究所 | A kind of wheeled end burnishing device of public affairs rotation |
| CN109702635A (en) * | 2019-01-25 | 2019-05-03 | 广州金谷钻石工具有限公司 | A kind of diamond grinding tool with rotation |
| CN109909819A (en) * | 2019-04-28 | 2019-06-21 | 浙江海洋大学 | A kind of outer surface burnishing device of open tubular column |
| CN110434716A (en) * | 2019-08-16 | 2019-11-12 | 天津大学 | A kind of power/adaptive grinding and polishing apparatus of position controllable face type and method |
| CN111438635A (en) * | 2018-12-30 | 2020-07-24 | 中国科学院宁波材料技术与工程研究所 | Method for improving polishing surface uniformity of free-form surface |
| CN113211282A (en) * | 2021-04-23 | 2021-08-06 | 刘月林 | Polishing device for curved-surface metal sheet |
| CN114523408A (en) * | 2022-03-10 | 2022-05-24 | 浙江师范大学 | Robot polishing device and method based on spindle type polishing head |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61142067A (en) * | 1984-12-11 | 1986-06-28 | Osaka Gensokuki Seisakusho:Kk | Generatingly machining device for twisted churning blade |
| JPS63221958A (en) * | 1987-03-10 | 1988-09-14 | Toyo Shinku Kako Kk | Spherical polishing device for columnar member |
| CN1180008A (en) * | 1997-10-10 | 1998-04-29 | 清华大学 | Glass free curve compound rotating polishing method and its tool |
| CN2732422Y (en) * | 2004-09-30 | 2005-10-12 | 浙江工业大学 | Passive air bag pressure controlled flexible polishing tool |
| CN1935456A (en) * | 2006-10-17 | 2007-03-28 | 吉林大学 | Pressure-speed-regulating die curve grinding-polishing system |
| CN101214630A (en) * | 2007-12-29 | 2008-07-09 | 浙江工业大学 | Grinding wheel head driving mechanism for mold freedom curved surface flexible polishing machine |
| CN201702650U (en) * | 2010-06-30 | 2011-01-12 | 安徽飞翔电器有限公司 | Grinding device for processing curved surface head of mold punch space |
-
2016
- 2016-03-15 CN CN201610147306.9A patent/CN105798734B/en not_active Expired - Fee Related
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61142067A (en) * | 1984-12-11 | 1986-06-28 | Osaka Gensokuki Seisakusho:Kk | Generatingly machining device for twisted churning blade |
| JPS63221958A (en) * | 1987-03-10 | 1988-09-14 | Toyo Shinku Kako Kk | Spherical polishing device for columnar member |
| CN1180008A (en) * | 1997-10-10 | 1998-04-29 | 清华大学 | Glass free curve compound rotating polishing method and its tool |
| CN2732422Y (en) * | 2004-09-30 | 2005-10-12 | 浙江工业大学 | Passive air bag pressure controlled flexible polishing tool |
| CN1935456A (en) * | 2006-10-17 | 2007-03-28 | 吉林大学 | Pressure-speed-regulating die curve grinding-polishing system |
| CN101214630A (en) * | 2007-12-29 | 2008-07-09 | 浙江工业大学 | Grinding wheel head driving mechanism for mold freedom curved surface flexible polishing machine |
| CN201702650U (en) * | 2010-06-30 | 2011-01-12 | 安徽飞翔电器有限公司 | Grinding device for processing curved surface head of mold punch space |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109129177A (en) * | 2018-07-20 | 2019-01-04 | 中国科学院西安光学精密机械研究所 | A kind of wheeled end burnishing device of public affairs rotation |
| CN111438635A (en) * | 2018-12-30 | 2020-07-24 | 中国科学院宁波材料技术与工程研究所 | Method for improving polishing surface uniformity of free-form surface |
| CN111438635B (en) * | 2018-12-30 | 2021-08-17 | 中国科学院宁波材料技术与工程研究所 | Method for improving polishing surface uniformity of free-form surface |
| CN109702635A (en) * | 2019-01-25 | 2019-05-03 | 广州金谷钻石工具有限公司 | A kind of diamond grinding tool with rotation |
| CN109909819A (en) * | 2019-04-28 | 2019-06-21 | 浙江海洋大学 | A kind of outer surface burnishing device of open tubular column |
| CN110434716A (en) * | 2019-08-16 | 2019-11-12 | 天津大学 | A kind of power/adaptive grinding and polishing apparatus of position controllable face type and method |
| WO2021031631A1 (en) * | 2019-08-16 | 2021-02-25 | 天津大学 | Grinding and polishing apparatus and method supporting controllable force/position and capable of automatically adapting to different surface profiles |
| CN113211282A (en) * | 2021-04-23 | 2021-08-06 | 刘月林 | Polishing device for curved-surface metal sheet |
| CN114523408A (en) * | 2022-03-10 | 2022-05-24 | 浙江师范大学 | Robot polishing device and method based on spindle type polishing head |
| CN114523408B (en) * | 2022-03-10 | 2022-12-27 | 浙江师范大学 | Robot polishing device and method based on spindle type polishing head |
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