CN102513924B - Polishing machine of surfaces of polycrystalline diamond compact sheets - Google Patents
Polishing machine of surfaces of polycrystalline diamond compact sheets Download PDFInfo
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- CN102513924B CN102513924B CN201110445129XA CN201110445129A CN102513924B CN 102513924 B CN102513924 B CN 102513924B CN 201110445129X A CN201110445129X A CN 201110445129XA CN 201110445129 A CN201110445129 A CN 201110445129A CN 102513924 B CN102513924 B CN 102513924B
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- 229910003460 diamond Inorganic materials 0.000 title claims abstract description 37
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- 230000001360 synchronised effect Effects 0.000 claims description 4
- 238000007517 polishing process Methods 0.000 abstract description 10
- 238000006073 displacement reaction Methods 0.000 abstract description 4
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- 229910000831 Steel Inorganic materials 0.000 description 18
- 239000010959 steel Substances 0.000 description 18
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Abstract
The invention discloses a polishing machine of surfaces of polycrystalline diamond compact sheets, which comprises a clamp portion which is used for clamping the compact sheets and enabling the compact sheets to rotate. The clamp portion comprises a workpiece holder, a polishing pressure adjusting mechanism, a clamp rotation driving mechanism and a clamp body rotation mechanism. The clamp rotation driving mechanism is coupled with the workpiece holder to enable the workpiece holder to rotate around a center shaft (E) of the workpiece holder, and the clamp body rotation mechanism is used for enabling the center shaft (E) of the workpiece holder to rotate around a center shaft (A) parallel to the center shaft. By means of combination of the clamp rotation driving mechanism and the clamp body rotation mechanism, the polishing machine achieves the situation that the compact sheets rotate around the center of the workpiece holder while doing continuous displacement on an end face abrasive wheel in a polishing process and solve the fixing problem of surfaces of the compact sheets to be polished and contacting lines of the end face abrasive wheel in the polishing process of a traditional polishing device.
Description
Technical field
The present invention relates to a kind of mechanical polishing apparatus, relate in particular to a kind of polishing machine that can be used for polishing large-scale composite polycrystal-diamond surface, belong to technical field of metal surface processing.
Background technology
Polycrystalline diamond (Polycrystalline diamond, be called for short PCD) composite sheet is a kind of artificial diamond's stone flour and bonding agent etc. to be placed on cemented carbide substrate, the composite that is pressed into by high temperature, height.Composite polycrystal-diamond has the high wearability of polycrystalline diamond and the high impact properties of carbide alloy concurrently, makes it possess excellent cutting ability.It is used to make various cutters, is widely used in the precision cutting processing to non-ferrous metal and alloy, high hardness material, nonmetallic materials and enhanced type composite material etc.Cutter with the composite polycrystal-diamond making, not only increase substantially tool life, improved machining efficiency, guaranteed machining accuracy, improved the surface quality of workpiece to be machined, and solved the processing problems of many difficult-to-machine materials, expanded the machining range of application.
Rapidly chip removal during in order to ensure machining, avoid the workpiece to be machined surface to be scratched, polishing need to be carried out in the PCD surface of most of composite sheet, makes it reach mirror effect.Generally with mechanical polishing method, implement the PCD surface finish of composite sheet in actual production.In prior art, the burnishing machines that comprise end face emery wheel and fixed clamp that adopt carry out polishing to the PCD surface of composite sheet more.
As shown in Figure 1, known burnishing machine mainly is divided into emery wheel section and clamp portion two parts.
Wherein, emery wheel section comprises: belt 1, motor pulley 2, motor 3, main shaft bearing 22, emery wheel main shaft 23, rack sleeve 24, big belt pulley 25 and end face emery wheel 4; Motor pulley 2 is arranged on the output shaft of motor 3, motor pulley 2 is connected by belt 1 with big belt pulley 25, big belt pulley 25 is arranged on an end of emery wheel main shaft 23, the other end of emery wheel main shaft 23 is equipped with end face emery wheel 4, emery wheel main shaft 23 is supported on rack sleeve 24 by main shaft bearing 22, and rack sleeve 24 and motor 3 are fixed on lathe.The motor 3 of emery wheel section drives emery wheel main shaft 23 and end face emery wheel 4 High Rotation Speeds by motor pulley 2, belt 1, big belt pulley 25.
Clamp portion can be divided into again gear ring fixture 21, polish pressure guiding mechanism and fixture rotary drive mechanism three parts.Gear ring fixture 21 is used for bonding composite sheet 5; The polish pressure guiding mechanism is used for gear ring fixture 21 and composite sheet 5 are pressed to end face emery wheel 4, and the fixture rotary drive mechanism is used for driving gear ring fixture 21 and composite sheet 5 rotations.
The polish pressure guiding mechanism comprises: self-align steel ball 6, the axis of rolling 7, ball sleeve 8, spring 10, spring base 11, adjustment screw 12, steel ball 13.The polish pressure guiding mechanism is positioned on gear ring fixture 21.When tightening adjustment screw 12, can promote steel ball 13, spring base 11 with spring 10 compressions, cause spring 10 and produce elastic pressure.Spring 10 is enclosed within the axis of rolling 7 upper ends, and it is pressed on gear ring fixture 21 and composite sheet 5 on end face emery wheel 4 by the axis of rolling 7, self-align steel ball 6.The axis of rolling 7 is positioned in clamp body 9 by ball sleeve 8, can axially move freely along self, and clamp body 9 is fixed on lathe.The polish pressure guiding mechanism mainly, by tightening or loosening adjustment screw 12, is regulated the power that is applied on spring 10, thereby regulates the compression degree between gear ring fixture 21 and end face emery wheel 4.
The fixture rotary drive mechanism comprises: reducing motor 14, little flute profile belt wheel 15, cog belt 16, large flute profile belt wheel 17, bearing 18, power transmission shaft 19, pinion 20.Reducing motor 14 is fixed on lathe, and little flute profile belt wheel 15 is installed on the output shaft of reducing motor 14.Large flute profile belt wheel 17 is arranged on an end of power transmission shaft 19, and power transmission shaft 19 is arranged in clamp body 9 by bearing 18, and the other end of power transmission shaft 19 is equipped with pinion 20, pinion 20 and 21 engagements of gear ring fixture.The reducing motor 14 of fixture rotary drive mechanism drives large flute profile belt wheel 17, power transmission shaft 19 and pinion 20 rotations by little flute profile belt wheel 15 and cog belt 16, and pinion 20 engagement gear ring fixtures 21 drive composite sheet 5 around gear ring fixture 21 pivot low speed rotation.
During polishing, first composite sheet 5 is bonded on gear ring fixture 21.Adjustment screw 12 is aligned steel ball 13 on spring base 11; Tighten adjustment screw 12, spring 10 distortion, polish pressure is applied on gear ring fixture 21 and composite sheet 5 by the axis of rolling 7 and self-align steel ball 6.Starter motor 3 and reducing motor 14; Motor 3 drives emery wheel main shaft 23 and end face emery wheel 4 High Rotation Speeds by motor pulley 2, belt 1, big belt pulley 25; Reducing motor 14 drives large flute profile belt wheel 17, power transmission shaft 19 and pinion 20 rotations by little flute profile belt wheel 15, cog belt 16, and pinion 20 engagement gear ring fixtures 21 slowly run.
As from the foregoing, in polishing process,, by the rotation of 21 rotations of gear ring fixture and end face emery wheel 4, make composite sheet 5 rotate with respect to end face emery wheel 4, thereby complete the polishing to the composite polycrystal-diamond polished surface.Because motor 3, rack sleeve 24, clamp body 9, reducing motor 14 are fixed on lathe, with traditional polissoir polishing composite sheet, the end contact line of rotating center opposing end surface emery wheel 4 is fixed.The composite polycrystal-diamond large for thickness, that diameter is little is suitable with traditional polissoir.
Along with diameter increase, the reduced thickness of composite polycrystal-diamond, the especially appearance of large tracts of land composite polycrystal-diamond, the diameter of composite polycrystal-diamond has surpassed end face emery wheel width more than one times, and thickness is also than product is thin a lot of in the past.When using traditional polissoir polishing minimal thickness, large tracts of land composite polycrystal-diamond surface, there are some problems.
Greater than end face emery wheel ring width, and while adopting traditional polissoir polishing, polished surface and end face emery wheel contact wire are fixed, therefore rotating center and end face emery wheel are without relative motion due to the polished surface diameter of large tracts of land composite polycrystal-diamond.In order to process complete mirror effect, use above-mentioned polishing machine,, just need the repeated multiple times polishing to the large tracts of land composite polycrystal-diamond to complete, cause the polishing time overlength.
Summary of the invention
In order to solve the problems of the technologies described above, the invention provides a kind of polishing machine of surfaces of polycrystalline diamond compact sheets, this polishing function realizes workpiece rotation while continuous dislocation in polishing area in polishing process, has improved the efficiency of large tracts of land composite polycrystal-diamond surface finish.
For realizing above-mentioned goal of the invention, the present invention adopts following technical scheme:
A kind of polishing machine of surfaces of polycrystalline diamond compact sheets, comprise for described composite sheet being carried out clamping and making the clamp portion of its rotation; Described clamp portion comprises the work piece holder for the clamping composite sheet, and is used for adjusting the polish pressure guiding mechanism of polish pressure size; Described work piece holder is positioned at the top of described composite sheet, and described polish pressure guiding mechanism is connected in described work piece holder, it is characterized in that, described clamp portion also comprises:
The fixture rotary drive mechanism, be coupled in described work piece holder, is used for making described work piece holder around self central shaft rotation;
The clamp body rotating mechanism, for the described central shaft that makes described work piece holder, around the axle rotation that is parallel to described central shaft.
More preferably, described clamp body rotating mechanism is the double rocking lever swing mechanism, comprise the clamp body rotating shaft, driven shaft, eccentric shaft and fixed rotating shaft, centre-to-centre spacing between described clamp body rotating shaft and described fixed rotating shaft is fixed, described central shaft, described driven shaft and described clamp body rotating shaft are located along the same line, and are provided with auxiliary rocking bar between described eccentric shaft and fixed rotating shaft, and described eccentric shaft rotates around described driven shaft.
Described fixture rotary drive mechanism comprises driving shaft and motor, and described driving shaft and described driven shaft drive rotation by described motor.
Described driving shaft and described driven shaft meshes by gear or Synchronous Belt Drives is carried out transferring power, the gearratio of described gear engagement or described Synchronous Belt Drives is between 4: 1～5: 1.
Centre-to-centre spacing between described driving shaft and described work piece holder central shaft is greater than the reference center distance 0.5mm of normal gear engagement, in order to there is sufficient space to meet described work piece holder adaptive location.
Distance between described eccentric shaft and described driven shaft is determined by the hunting range of described composite sheet; Distance between described eccentric shaft and described fixed rotating shaft is determined by the centre position of the hunting range of described composite sheet.
The active length of described auxiliary rocking bar is determined by the centre position of the hunting range of described composite sheet.
More preferably, this polishing machine also comprises be used to the detent mechanism of keeping described polish pressure guiding mechanism integral body and the stable rotation of described work piece holder, described detent mechanism rotatably is connected with described polish pressure guiding mechanism, and described detent mechanism can be around described clamp body rotating shaft rotation.
More preferably, work piece holder described in this polishing machine has 3 holding workpiece structures, and three clamping impetus are evenly distributed on the holding workpiece cylindrical.
The contact-making surface of described clamping impetus line and described composite sheet laminating work piece holder acutangulates, and forms the component that impels described composite sheet to be adjacent to described work piece holder contact-making surface.
Compare with traditional polissoir, the combination of the present invention by this fixture rotary drive mechanism and clamp body rotating mechanism realized in polishing process composite sheet in the time of the rotation of work piece holder center on the end face emery wheel continuous dislocation, the fixing problem of composite sheet polished surface and end face emery wheel contact wire while having solved polishing in traditional polissoir.More preferably, adopt the double rocking lever swing mechanism to realize the central shaft of described work piece holder, around the axle rotation that is parallel to described central shaft, and drive driving shaft and driven shaft by a motor and rotate simultaneously and also make whole polisher structure more simple and compact.Simultaneously, the invention also discloses and a kind ofly use in this polishing machine, the work piece holder that is used for the clamping composite sheet, this work piece holder uses the mode of 3 clampings to fix composite sheet, more preferably, the contact-making surface of described clamping impetus line and described composite sheet laminating work piece holder acutangulates, and makes composite sheet fit tightly on the contact-making surface of work piece holder.
This polishing machine make composite sheet in the time of the rotation of work piece holder center on the end face emery wheel continuous dislocation, the fixing problem of composite sheet polished surface and end face emery wheel contact wire while having solved polishing in traditional polissoir, improved the identical state that is in contact with one another of composite sheet and end face emery wheel, reduced the smooth and round and smooth finishing difficulty of end face emery wheel, reduced the specification requirement to the operator, thereby, make the polishing of once completing the large tracts of land composite polycrystal-diamond become possibility.In addition, when the many covers of installation in a polishing machine had the clamp portion of this double rocking lever swing mechanism, the multi-disc of polishing simultaneously large tracts of land composite polycrystal-diamond, improved utilization rate of equipment and installations greatly.
Description of drawings
The present invention is described in further detail below in conjunction with the drawings and specific embodiments.
Fig. 1 is the structural representation of burnishing machine of the prior art;
Fig. 2 is double rocking lever swing mechanism master sectional structure schematic diagram in the present invention;
Fig. 3 is the plan structure schematic diagram of double rocking lever swing mechanism in the present invention;
Fig. 4 is the auxiliary rocking bar of double rocking lever swing mechanism and connecting portion structural representation in the present invention;
Fig. 5 (a) is work piece holder structural representation in the present invention, and Fig. 5 (b) is the H-H cutaway view of work piece holder;
Fig. 6 is the symmetrical fundamental diagram that two double rocking lever swing mechanisms are installed.
The specific embodiment
Polishing machine of surfaces of polycrystalline diamond compact sheets provided by the present invention, comprise for composite sheet 35 being carried out the emery wheel section of polishing, and be used for composite sheet 35 is carried out clamping and made the clamp portion of its rotation, and its F-F cutaway view as shown in Figure 2.
Wherein, emery wheel section comprises: end face emery wheel 34, be used for the motor 32 of Driving plane emery wheel 34 rotations, and other auxiliary bodies that are used for supporting end face emery wheel 34 and are used for transmitting motor 32 outputting powers, mainly comprise: motor pulley 31, main shaft bearing 33, emery wheel back shaft 62, rack sleeve 63, big belt pulley 64, belt 65.Motor pulley 31 is arranged on the output shaft of motor 32, motor pulley 31 and big belt pulley 64 are by belt 65 transferring power, big belt pulley 64 is arranged on an end of emery wheel back shaft 62, the other end of emery wheel back shaft 62 is equipped with end face emery wheel 34, emery wheel back shaft 62 is supported in rack sleeve 63 by main shaft bearing 33, and rack sleeve 63 and motor 32 are fixed on lathe.The motor 32 of emery wheel section drives emery wheel back shaft 62 and end face emery wheel 34 High Rotation Speeds by motor pulley 31, belt 65, big belt pulley 64.
Clamp portion, as the main improved place of the present invention, can be divided into work piece holder 61, polish pressure guiding mechanism, fixture rotary drive mechanism and clamp body rotating mechanism four parts.Work piece holder 61 is positioned at the top of composite sheet 35, is used for clamping composite sheet 35.The polish pressure guiding mechanism is connected in the top of work piece holder 61, is used for work piece holder 61 and composite sheet 35 are pressed to end face emery wheel 34, and can adjusts the size of polish pressure.The fixture rotary drive mechanism is coupled in work piece holder 61, is used for making work piece holder 61 around self central shaft (referring to the E of Fig. 3 and Fig. 6) rotation.The clamp body rotating mechanism, be used for making the central shaft of work piece holder 61,, around the axle that is parallel to work piece holder 61 central shafts (referring to the A in Fig. 3 and Fig. 6) rotation, namely be used for making work piece holder 61 and composite sheet 35 to come and go continuously displacement in end face emery wheel 34 polishing area.More preferably, can realize work piece holder 61 around the rotation of self central shaft and make the central shaft of work piece holder 61 by same motor, around the axle rotation that is parallel to work piece holder 61 central shafts.
This polish pressure guiding mechanism comprises: adaptive location steel ball 36, tightening axle 37, ball sleeve 38, spring 39, spring base 40, power sensor 41, sensor holder 42, steel ball 43 and adjustment screw 44.Tightening axle 37 lower ends in the polish pressure guiding mechanism are equipped with adaptive location steel ball 36, and tightening axle 37 is pressed on work piece holder 61 on end face emery wheel 34 by adaptive location steel ball 36; Tightening axle 37 is positioned in clamp body 57 by ball sleeve 38, and can be axially mobile flexibly along self, and there is spring 39 tightening axle 37 upper ends, and spring 39 1 end tops compress dead axle 37, other end top pressure spring seat 40; Spring base 40 upper ends are provided with adjustment screw 44, between spring base 40 and adjustment screw 44, steel ball 43 are housed.The polish pressure guiding mechanism mainly, by tightening or loosening adjustment screw 44, is regulated the power that is applied on spring 39, thereby regulates the compression degree between work piece holder 61 and end face emery wheel 34.More preferably, can fixedly mount between spring base 40 and steel ball 43 and be useful on the power sensor 41 of measuring polish pressure and the sensor holder 42 that is used for bed knife sensor 41, this power sensor 41 can pass to the pressure of adjustment screw 44 described tightening axle 37, and force value is presented on the display device that is attached thereto.
More preferably, surface polishing machine also comprises detent mechanism, this detent mechanism rotatably is connected with the polish pressure guiding mechanism, and can, around clamp body rotating shaft 56 rotations, be used for keeping described polish pressure guiding mechanism and the stationarity of work piece holder 61 integral body when rotating.Detent mechanism comprises: pivoted arm 48, rotary arm bearing 49, pivoted arm pole 50.Wherein, pivoted arm 48 1 ends are supported on pivoted arm pole 50 by rotary arm bearing 49, and pivoted arm pole 50 is arranged on clamp body 57, and pivoted arm pole 50 is positioned at clamp body rotating shaft 56 tops; Pivoted arm 48 arm pole 50 rotation that can rotate, pivoted arm 48 other ends are equipped with adjustment screw 44.
During work, rotate pivoted arm 48, adjustment screw 44 is aligned steel ball 43; Turn adjustment screw 44, by sensor holder 42, power sensor 41, spring base 40, polish pressure is applied on spring 39, cause spring 39 compressions, spring 39 passes polish pressure to be applied on work piece holder 61 and composite sheet 35 by tightening axle 37, adaptive location steel ball 36, and polished of composite sheet 35 contacts with end face emery wheel 34.When drawing off work piece holder 61, unclamp adjustment screw 44, then rotate pivoted arm 48, the steel ball 43 that staggers ((axis of the adjustment screw that staggers 44 and tightening axle 37), then promote tightening axle 37, allow its lower end throw off work piece holder 61 and get final product.
This fixture rotary drive mechanism is used for making work piece holder 61 around self central shaft E rotation.This fixture rotary drive mechanism mainly comprises: reducing motor 45, coupling band 46, motor cabinet 47, bearing 58, driving shaft 59 and pinion 60 that driving force is provided.Wherein, reducing motor 45 is arranged on motor cabinet 47, and motor cabinet 47 is arranged on clamp body 57.Reducing motor 45 is direct-connected by coupling band 46 and driving shaft 59.Driving shaft 59 is arranged in clamp body 57 by bearing 58, and the upper end that driving shaft 59 stretches out clamp body 57 connects reducing motor 45, and lower end is equipped with pinion 60, pinion 60 and work piece holder 61 engagements.Reducing motor 45, directly by pinion 60, drives work piece holder 61 and drives composite sheet 35 rotations.
The clamp body rotating mechanism, be used for making work piece holder 61 central shaft E, around the axle A rotation that is parallel to described central shaft.This clamp body rotating mechanism can be realized by the double rocking lever swing mechanism, can certainly adopt alternate manner to realize.For example, adopt two swing arms, realize that the central shaft E of work piece holder 61 is around the axle A rotation that is parallel to described central shaft; Make an end of two swing arms be rotatably connected to respectively the top and the bottom of polish pressure guiding mechanism, the other end of two swing arms is connected respectively on the diverse location of the same parts with rotating shaft A, two tie points are not waited to the distance of rotating shaft A; Utilize motor to drive the rotation of this parts, two swing arms are around this identical rotating shaft A rotation, thereby make work piece holder 61 in self central shaft E rotation, around the axle A rotation that is parallel to this central shaft.
More preferably, adopt the double rocking lever swing mechanism in the present embodiment, and the work of this double rocking lever swing mechanism is driven by reducing motor 45.Below in conjunction with Fig. 2 and Fig. 3, its concrete structure is described.Fig. 2 is double rocking lever swing mechanism F-F master sectional structure schematic diagram; Fig. 3 is the schematic top plan view of double rocking lever swing mechanism, design feature for clearer demonstration double rocking lever swing mechanism, clipped reducing motor 45 and coupling part thereof in figure, and the polish pressure guiding mechanism on tightening axle 37 tops and the detent mechanism that is positioned at double rocking lever swing mechanism top.
As shown in Figure 2, clamp body rotating shaft 56 is fixed on lathe, and A is the central shaft of clamp body rotating shaft 56, and clamp body 57 can rotate around the central shaft A of clamp body rotating shaft 56; Supported by fixture support bearing 55 between clamp body rotating shaft 56 and clamp body 57.Be provided with driven shaft 54 between driving shaft 59 on clamp body 57 and clamp body rotating shaft 56, B is the central shaft of driven shaft 54, and driven shaft 54 is supported in clamp body 57 by bearing 58, and this driven shaft 54 is driven by reducing motor 45 together with driving shaft 59.The part of stretching out clamp body 57 on driving shaft 59 tops is equipped with little toothed belt wheel 51, and the upper end that driven shaft 54 stretches out clamp body 57 is equipped with large toothed belt wheel 53, and little toothed belt wheel 51 drives large toothed belt wheel 53 by cog belt 52 and rotates around driven shaft 54 central shaft B.More preferably, regulating wheel 66 is installed on motor cabinet 47, is used for tensioning cog belt 52, guarantee the normal transmission of cog belt 52.
Certainly, above-mentioned toothed belt transmission mechanism, also can change the output work of being transmitted reducing motor 45 by gear drive.Stretch out the upper end of clamp body 57 at driven shaft 54 gear wheel is installed, stretch out the part of clamp body 57 on driving shaft 59 tops pinion is installed, the meshing gear that the large and small toothed belt wheel of the toothed belt transmission in this polishing machine and cog belt is replaced with etc. gearratio gets final product.
More preferably, output speed 10～15r/min when reducing motor 45, the little toothed belt wheel 51 that drives the motion of double rocking lever swing mechanism is 1: 4～1: 5 with the gear ratio of large toothed belt wheel 53 gear ratios or pinion and gear wheel, be the rotating ratio of driving shaft 59 and driven shaft 54 between 4: 1～5: 1 time, polishing efficiency is better.
As shown in Figure 4, on large toothed belt wheel 53, eccentric shaft 67 is installed, C is the central shaft of eccentric shaft 67; Fixed rotating shaft 69 is fixed on lathe by clamp fixing plate 70, and D is the central shaft of fixed rotating shaft 69; Be provided with auxiliary rocking bar 68 between eccentric shaft 67 and fixed rotating shaft 69.One end of auxiliary rocking bar 68 is connected with eccentric shaft 67, and the other end is connected with fixed rotating shaft 69, and two ends can be rotated around the central shaft C of eccentric shaft 67 and the central shaft D of fixed rotating shaft 69 respectively.Along with large toothed belt wheel 53 rotates, the central shaft C of eccentric shaft 67 rotates around the central shaft B of driven shaft 54, thereby drives clamp body 57 and 68 swings of auxiliary rocking bar, and tightening axle 37 following work piece holder 61 and composite sheet 35 are moved around on end face emery wheel 34.Change the centre distance of driven shaft 54 to eccentric shaft 67, can change the hunting range of composite sheet 35, also namely can change composite sheet 35 swings back and forth in end face emery wheel 34 angle.And assist the active length of rocking bar 68 by adjustment, namely eccentric shaft 67, to the distance between fixed rotating shaft 69, can be determined the centre position of composite sheet 35 hunting ranges.
Fig. 4 is auxiliary rocking bar and connecting portion structural representation, by the G-G of double rocking lever swing mechanism shown in Figure 3, is analysed and observe and is obtained.As can be seen from Figure 4, auxiliary rocking bar 68 1 ends are arranged on eccentric shaft 67 by bearing 72, and the other end is arranged on by bearing 72 in the bearing holder (housing, cover) 71 of fixed rotating shaft 69 tops, have elongated slot on auxiliary rocking bar 68, can be in elongated slot the position of shifting axle bearing sleeve 71., by the use length of the auxiliary rocking bar 68 of shifting axle bearing sleeve 71 capable of regulatings, with locking female 73, bearing holder (housing, cover) 71 is fixed on auxiliary rocking bar 68 after adjusting.
From said structure as can be known, this double rocking lever swing mechanism comprises work rocking bar, auxiliary rocking bar, connecting rod and frame.Structural member in Fig. 3 is abbreviated to bar, is artis with each live bearing breviary, obtains double rocking lever swing mechanism fundamental diagram.Wherein, the central shaft B of driven shaft 54 forms connecting rod BC to the central shaft C of eccentric shaft 67, and along with large toothed belt wheel 53 rotations, connecting rod BC rotates around the central shaft B of driven shaft 54; Work piece holder 61 central shaft E form a rocking bar to clamp body rotating shaft 56 central shaft A, title work rocking bar AE, and work rocking bar AE swings around clamp body rotating shaft 56 central shaft A; Eccentric shaft 67 central shaft C form another root rocking bar to fixed rotating shaft 69 central shaft D, the auxiliary rocking bar CD of title, and auxiliary rocking bar CD swings around fixed rotating shaft 69 central shaft D; Fixed rotating shaft 69 and clamp body rotating shaft 56 all are fixed on lathe by clamp fixing plate 70, and therefore, fixed rotating shaft 69 central shaft D form frame AD to clamp body rotating shaft 56 central shaft A, and frame AD is fixed on lathe, is not moved in polishing process.In polishing process, connecting rod BC is the active rotation bar, around the central shaft B uniform rotation of driven shaft 54 and drive work rocking bar AE and auxiliary rocking bar CD swings, makes work piece holder 61 central shaft E back and forth movement between position E1 and position E2.Work piece holder 61 itself can carry out rotation around central shaft E, can also rotate around clamp body rotating shaft 56 central shaft A between position E1 and position E2 under the drive of double rocking lever swing mechanism.Wherein, the length of connecting rod BC has the greatest impact to swing speed and the hunting range of work piece holder 61, and the length of connecting rod BC is determined by the hunting range of work piece holder 61; The active length of auxiliary rocking bar CD is determined by the centre position of the hunting range of work piece holder 61.
More preferably, this embodiment gives a kind of better holding workpiece structure of work piece holder 61--3 holding workpiece structures.As shown in Fig. 5 (a), from the H-H cutaway view (being Fig. 5 (b)) of work piece holder 61 as seen, work piece holder 61 upper surface centers offer coniform hole, are used for placing adaptive location steel ball 36, and work piece holder 61 can be around 36 rotations of adaptive location steel ball; Its top is fixed with gear ring 74, is used for and pinion 60 engagements (seeing Fig. 2); Two taper bolts 75 and a jacking block 76 form 3 points of holding workpiece cylindrical, and are evenly distributed on the holding workpiece cylindrical.During clamping, two taper bolts 75 and the clamping force that jacking block 76 produces towards basal plane, impel composite sheet 35 and work piece holder 61 to combine closely like this.More preferably, during holding workpiece, the contact-making surface of clamping impetus line and composite sheet 35 laminating work piece holders 61 acutangulates, and three of holding workpiece clamping forces that all produce the tendency contact-making surface, impel composite sheet 35 and work piece holder 61 basal planes to fit tightly like this.
More preferably, between the pinion 60 of driving shaft 59 lower ends and work piece holder 61 upper ring gears 74, centre-to-centre spacing is greater than the reference center distance 0.5mm of normal gear engagement, so that slot milling, allow work piece holder 61 can do micro-self adaptation around adaptive location steel ball 36 in vertical plane and tilt.
Clamp portion in above-mentioned burnishing device can one or more sets be installed on same lathe, many sleeve clamps section can be uniformly distributed in end face emery wheel 34 around, be used for the multi-disc of polishing simultaneously composite sheet 35., at this, as an example of same Installing machine tool two sleeve clamp sections example, double rocking lever swing mechanism operation principle in polishing machine is described.Structural member in Fig. 3 is abbreviated to bar, is artis with each live bearing breviary, then two double rocking lever swing mechanism symmetries are placed on same burnishing machine, obtains the fundamental diagram of symmetrical two double rocking lever swing mechanisms installing shown in Figure 6.Wherein, E is the central shaft of work piece holder 61, it is namely the pivot of composite sheet 35, it swings and does not throw off the end face of end face emery wheel 34 shown in Figure 6 around clamp body rotating shaft 56 central shaft A, connecting rod BC is the active rotation bar, around the central shaft B uniform rotation of driven shaft 54 and drive work rocking bar AE and auxiliary rocking bar CD swings.Rectangular coordinate system is inserted by this mechanism, can obtain t x, the y coordinate of work piece holder 61 central shaft E constantly:
Wherein, θ (t) is the t angle that rocking bar AE (t) becomes with initial position AE of constantly working.Under the prerequisite of the location positioning of the length of work rocking bar AE and driven shaft 54 central shaft B, can calculate as requested deformation trace and the hunting range of work piece holder 61 central shaft E.In like manner, length according to work rocking bar AE, connecting rod BC, frame AD, hunting range in conjunction with work piece holder 61 central shaft E on end face emery wheel 34, also can calculate the length of auxiliary rocking bar CD, thereby assist the length (regulating the active length of auxiliary rocking bar 68) of rocking bar CD by adjusting, reach the purpose of regulating composite sheet 35 displacement range.
Compare with traditional polissoir, the present embodiment is by adopting the double rocking lever swing mechanism to realize in polishing process composite sheet 35 rotations continuous dislocation on end face emery wheel 34 simultaneously, the problem that while having solved polishing in traditional polissoir, composite sheet 35 polished surface and end face emery wheel 34 contacts wire are fixed.Because end face emery wheel 34 microcosmic it seems that height is straggly, and out-of-flatness.On the one hand, when the contact wire of original and end face emery wheel 34 is left at composite sheet 35 rotation centers, the contact point of original and end face emery wheel 34 on polished surface, some disengagement, the stable contact that originally forms is broken, and under adaptation function coordinates, not contact point originally will contact with end face emery wheel 34, increase new contact point, improved the identical state that is in contact with one another.On the other hand, the workpiece displacement simultaneously, the attrition of polished table opposite faces emery wheel 34 end faces is with the height point equating on end face emery wheel 34 end faces, not only eliminated the annular refractive power ring that polished surface occurs because of position rotating, also reduce the smooth and round and smooth finishing difficulty of the end face of end face emery wheel 34, reduced the specification requirement to the operator.In addition,, because the rotation of polished surface is moved at the end face of end face emery wheel 34 simultaneously, make composite sheet 35 frictional heat homogenising in polishing process, the workpiece radiating condition improves.In sum, this polishing machine makes the polishing of once completing large tracts of land composite polycrystal-diamond 35 become possibility, has improved the efficiency of large tracts of land PCD surface finish, has reduced labor intensity of operating staff.
In addition, clamp portion in this polishing machine has workpiece rotating, pressure and controls, swings continuously and the several functions such as contact with self adaptation, polished surface contacts with end face emery wheel 34 self adaptations, add in polishing process, the finishing effect of polished table opposite faces emery wheel 34 end faces, and the improvement of radiating condition, make same equipment polishing simultaneously multi-disc large tracts of land composite polycrystal-diamond 35, improve utilization rate of equipment and installations.When the many covers of equipment installation have the clamp portion of this double rocking lever swing mechanism, the multi-disc of polishing simultaneously large tracts of land composite polycrystal-diamond 35.
The above has been described in detail polishing machine of surfaces of polycrystalline diamond compact sheets provided by the present invention, but is not limitation of the present invention.For one of ordinary skill in the art, any apparent change of under the prerequisite that does not deviate from connotation of the present invention, it being done, all will form infringement of patent right of the present invention, will bear corresponding legal liabilities.
Claims (9)
1. polishing machine of surfaces of polycrystalline diamond compact sheets, comprise for described composite sheet being carried out clamping and making the clamp portion of its rotation; Described clamp portion comprises the work piece holder for the clamping composite sheet, and is used for adjusting the polish pressure guiding mechanism of polish pressure size; Described work piece holder is positioned at the top of described composite sheet, and described polish pressure guiding mechanism is connected in described work piece holder, it is characterized in that, described clamp portion also comprises:
The fixture rotary drive mechanism, be coupled in described work piece holder, is used for making described work piece holder around self central shaft rotation;
The clamp body rotating mechanism, for the described central shaft that makes described work piece holder, around the axle rotation that is parallel to described central shaft;
Described clamp body rotating mechanism is the double rocking lever swing mechanism, comprise the clamp body rotating shaft, driven shaft, eccentric shaft and fixed rotating shaft, centre-to-centre spacing between described clamp body rotating shaft and described fixed rotating shaft is fixed, described central shaft, described driven shaft and described clamp body rotating shaft are located along the same line, be provided with auxiliary rocking bar between described eccentric shaft and fixed rotating shaft, described eccentric shaft rotates around described driven shaft.
2. polishing machine of surfaces of polycrystalline diamond compact sheets as claimed in claim 1 is characterized in that:
Described fixture rotary drive mechanism comprises driving shaft and motor, and described driving shaft and described driven shaft drive rotation by described motor.
3. polishing machine of surfaces of polycrystalline diamond compact sheets as claimed in claim 2 is characterized in that:
Described driving shaft and described driven shaft meshes by gear or Synchronous Belt Drives is carried out transferring power, the gearratio of described gear engagement or described Synchronous Belt Drives is between 4:1～5:1.
4. polishing machine of surfaces of polycrystalline diamond compact sheets as claimed in claim 3 is characterized in that:
Centre-to-centre spacing between described driving shaft and described work piece holder central shaft is greater than the reference center distance 0.5mm of normal gear engagement, in order to there is sufficient space to realize described work piece holder adaptive location.
5. polishing machine of surfaces of polycrystalline diamond compact sheets as claimed in claim 1 is characterized in that:
Distance between described eccentric shaft and described driven shaft is determined by the hunting range of described composite sheet; Distance between described eccentric shaft and described fixed rotating shaft is determined by the centre position of the hunting range of described composite sheet.
6. polishing machine of surfaces of polycrystalline diamond compact sheets as claimed in claim 1 is characterized in that:
The active length of described auxiliary rocking bar is determined by the centre position of the hunting range of described composite sheet.
7. polishing machine of surfaces of polycrystalline diamond compact sheets as claimed in claim 1, characterized by further comprising be used to the detent mechanism of keeping described polish pressure guiding mechanism integral body and the stable rotation of described work piece holder, described detent mechanism rotatably is connected with described polish pressure guiding mechanism, and described detent mechanism can be around described clamp body rotating shaft rotation.
8. polishing machine of surfaces of polycrystalline diamond compact sheets as described in any one in claim 1～7 is characterized in that:
Described work piece holder has 3 holding workpiece structures, and three clamping impetus are evenly distributed on the holding workpiece cylindrical.
9. polishing machine of surfaces of polycrystalline diamond compact sheets as claimed in claim 8 is characterized in that:
The contact-making surface of described clamping impetus line and described composite sheet laminating work piece holder acutangulates, and forms the component that impels described composite sheet to be adjacent to described work piece holder contact-making surface.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110445129XA CN102513924B (en) | 2011-12-27 | 2011-12-27 | Polishing machine of surfaces of polycrystalline diamond compact sheets |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110445129XA CN102513924B (en) | 2011-12-27 | 2011-12-27 | Polishing machine of surfaces of polycrystalline diamond compact sheets |
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| CN102513924A CN102513924A (en) | 2012-06-27 |
| CN102513924B true CN102513924B (en) | 2013-11-13 |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106064348A (en) * | 2016-07-29 | 2016-11-02 | 廊坊西波尔钻石技术有限公司 | A kind of composite polycrystal-diamond mirror finish pendulous device and method |
| CN108705438A (en) * | 2018-07-18 | 2018-10-26 | 四川三虎家居有限公司重庆分公司 | A kind of Furniture panel burnishing device |
| CN110026848B (en) * | 2019-05-05 | 2024-04-23 | 广东钜鑫新材料科技股份有限公司 | Special fixture for artificial diamond hard alloy composite sheet and grinding and chamfering device |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2719494Y (en) * | 2004-09-03 | 2005-08-24 | 沈阳理工大学 | Diamond film high-speed precision polishing device |
| CN2822875Y (en) * | 2005-04-11 | 2006-10-04 | 广东工业大学 | Chemically mechanical diamond membrane polishing device |
| US7354337B2 (en) * | 2005-08-30 | 2008-04-08 | Tokyo Seimitsu Co., Ltd. | Pad conditioner, pad conditioning method, and polishing apparatus |
| CN201863105U (en) * | 2010-07-06 | 2011-06-15 | 河南四方达超硬材料股份有限公司 | Clamping and pressurizing mechanism of polycrystalline diamond mirror polishing machine |
| CN101972979B (en) * | 2010-08-30 | 2012-03-21 | 南京航空航天大学 | Diamond surface chemical mechanical combined machining method and device thereof |
| CN202412045U (en) * | 2011-12-27 | 2012-09-05 | 北京迪蒙吉意超硬材料技术有限公司 | Polycrystalline composite slice surface polisher |
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