CN204868548U - Two -sided grinding of planetary gear formula or burnishing machine - Google Patents
Two -sided grinding of planetary gear formula or burnishing machine Download PDFInfo
- Publication number
- CN204868548U CN204868548U CN201520230801.7U CN201520230801U CN204868548U CN 204868548 U CN204868548 U CN 204868548U CN 201520230801 U CN201520230801 U CN 201520230801U CN 204868548 U CN204868548 U CN 204868548U
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- China
- Prior art keywords
- sun gear
- swivel nut
- driving shaft
- mount pad
- fixed
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- 230000003028 elevating effect Effects 0.000 claims abstract description 12
- 244000098674 Pinus cembroides Species 0.000 claims abstract description 3
- 235000005013 Pinus cembroides Nutrition 0.000 claims abstract description 3
- 235000008591 Pinus cembroides var edulis Nutrition 0.000 claims abstract description 3
- 235000015593 Pinus monophylla Nutrition 0.000 claims abstract description 3
- 235000015594 Pinus parryana Nutrition 0.000 claims abstract description 3
- 238000005498 polishing Methods 0.000 claims description 30
- 239000011324 bead Substances 0.000 claims description 12
- 239000002184 metal Substances 0.000 claims description 10
- 235000008331 Pinus X rigitaeda Nutrition 0.000 claims description 4
- 235000011613 Pinus brutia Nutrition 0.000 claims description 4
- 241000018646 Pinus brutia Species 0.000 claims description 4
- 238000000034 method Methods 0.000 abstract description 6
- 230000007774 longterm Effects 0.000 abstract description 3
- 230000006641 stabilisation Effects 0.000 abstract 1
- 238000011105 stabilization Methods 0.000 abstract 1
- 238000012423 maintenance Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 229910000975 Carbon steel Inorganic materials 0.000 description 1
- 241000237858 Gastropoda Species 0.000 description 1
- 239000010962 carbon steel Substances 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
Abstract
The utility model discloses a two -sided grinding of planetary gear formula or burnishing machine, sun gear fix in the upper end of sun gear drive shaft, and the middle part of sun gear drive shaft is supported by the mount pad, and sun gear elevating system includes first swivel nut, second swivel nut, layer board and complex root pull rod, first swivel nut pine cover is in the mount pad outside, and by the mount pad supporting, the internal thread of second swivel nut closes with the external screw thread of first swivel nut soon, and first swivel nut is driven by lifting drive mechanism, the lower part of mount pad includes a plurality of pull rod holes, and the upper end of pull rod is fixed on the second swivel nut, and the lower extreme of pull rod passes the pull rod hole, fixes on the layer board, and the lower part in the sun gear drive shaft is installed to the layer board. The utility model discloses can adjust the height of sun gear, the adjustment procedure can go on at any time, need not dismantle the part in the adjustment procedure very conveniently, can more not become the machine assembly precision, can guarantee the long -term job stabilization nature of lathe, adopts the structure of this equipment, and the wearing and tearing meeting of sun gear is even, and life improves greatly.
Description
[technical field]
The utility model relates to grinder or polishing machine, particularly relates to a kind of planetary gear type twin grinding or polishing machine.
[background technology]
Grinding and polishing while double-faced grinding/polishing machine is highly suitable for upper and lower two parallel end faces of hard brittle material thin type precision component, the thin part that flatness, equal thickness and roughness requirements are very high can be processed, so be widely applied at the manufacture field of optics and semi-conducting material.
As depicted in figs. 1 and 2, traditional twin grinding (polishing machine) adopts planet circular system drive mechanism, comprise frame, sun gear 10, ring gear 11, lower abrasive disk 12, top lap 40, planetary gear 41, sun gear driving mechanism, ring gear driving mechanism, lower abrasive disk driving mechanism, top lap driving mechanism.Sun gear driving mechanism comprises sun gear driving shaft 2, and sun gear 10 is fixed on the upper end of sun gear driving shaft 2.Workpiece 100 is placed in the cavity of planetary gear 41, and during equipment work, planetary gear 41 is driven by ring gear 11 and sun gear 10 and revolves round the sun round sun gear 10, and planetary gear 41 also carries out the rotation of certain speed.Now top lap 40 and lower abrasive disk 12 press against processing parts 4 and relatively rotate, and achieve processing workpiece 4 lower planes being carried out to simultaneous grinding (or polishing).
The thickness of planetary gear 41 is slightly less than the thickness of workpiece 4, planetary gear 41 hardness that carbon steel is manufactured is higher, with sun gear 10, the process of ring gear 11 at cooperating, serious concentrated wear can be caused to the engagement place of sun gear on equipment 10, ring gear 11.
For traditional grinding/polishing machine equipment, operating personnel need regularly carry out plus-minus pad to sun gear 10 is manual, the height of adjustment sun gear 10, and its position of wearing and tearing of staggering, makes the even wearing of sun gear 10 gear teeth, to extend sun gear 10 service life.
The diameter of ring gear 11 is comparatively large, and the number of teeth is many, and wearing and tearing compare sun gear gently, but ring gear 11 is difficult to tune ring gear to put down in the method for multiple positions plus-minus pad, ring gear 11 can overturn use when maintaining, and also can cut end face when maintaining, its thickness thinning.
The sun gear of twin grinder (polishing machine) and the engagement place wearing and tearing of ring gear are all the subject matter of twin grinder corrective maintenance all the time, the adjustment of sun gear and ring gear height is also time-consuming maintenance operation, and may because of sun gear or ring gear adjustment assembly bad and cause the yield of processing parts to decline.
[summary of the invention]
The technical problems to be solved in the utility model is to provide the less planetary gear type twin grinding of a kind of sun gear even wearing, planetary gears parts long service life, maintenance work amount or polishing machine.
The technical problem that the utility model will solve further is to provide a kind of planetary gear type twin grinding or polishing machine of ring gear even wearing.
In order to solve the problems of the technologies described above, the technical solution adopted in the utility model is, a kind of planetary gear type twin grinding or polishing machine, comprise frame, sun gear, ring gear, lower abrasive disk, sun gear driving mechanism, ring gear driving mechanism, lower abrasive disk driving mechanism, top lap driving mechanism and sun gear elevating mechanism; Sun gear driving mechanism comprises sun gear driving shaft, and sun gear is fixed on the upper end of sun gear driving shaft; Frame comprises support and is fixed on the mount pad on support, and the middle part of sun gear driving shaft is supported by mount pad, and sun gear elevating mechanism comprises lift drive mechanism, the first swivel nut, the second swivel nut, supporting plate and complex root pull bar; First swivel nut pine is enclosed within outside mount pad, is supported by mount pad, and the internal thread of the second swivel nut and the external screw thread of the first swivel nut screw, and the first swivel nut is driven by lift drive mechanism; The bottom of mount pad comprises a plurality of tie rod hole, and the upper end of pull bar is fixed on the second swivel nut, and the lower end of pull bar is through tie rod hole, and be fixed on supporting plate, supporting plate is arranged on the bottom of sun gear driving shaft.
Above-described planetary gear type twin grinding or polishing machine, mount pad bottom comprises bead, and the bead of mount pad is fixed on support; The bead of mount pad comprises the tie rod hole described in three, described pull bar is three; The lower end of the first swivel nut is supported by the bead of mount pad, and the external screw thread of the first swivel nut is positioned at the top of the first swivel nut, and the bottom of the first swivel nut comprises gear; The driven wheel that lift drive mechanism comprises reductor and driven by reductor, the gear of the first swivel nut is driven by driven wheel.
Above-described planetary gear type twin grinding or polishing machine, lower abrasive disk driving mechanism comprises pallet, lower abrasive disk driving shaft and lower abrasive disk driven wheel; Lower abrasive disk driving shaft is through the endoporus of mount pad, and the upper and lower of lower abrasive disk driving shaft is supported respectively by bearing by mount pad; Lower abrasive disk is fixed on pallet, and pallet is fixed on the upper end of lower abrasive disk driving shaft, and lower abrasive disk driven wheel is fixed on the lower end of lower abrasive disk driving shaft.
Above-described planetary gear type twin grinding or polishing machine, sun gear driving mechanism comprises sliding sleeve and sun gear driven wheel, and lower abrasive disk driving shaft is hollow shaft, and sun gear driving shaft is through the endoporus of lower abrasive disk driving shaft; Sliding sleeve is enclosed within the outside of sun gear driving shaft, is slidably matched with sun gear driving shaft; The top and bottom of sliding sleeve are supported respectively by bearing by abrasive disk driving shaft; Supporting plate is arranged on the bottom of sun gear driving shaft by thrust bearing, and sun gear driven wheel is fixed on the lower end of sun gear driving shaft.
Above-described planetary gear type twin grinding or polishing machine, sun gear driving shaft is hollow shaft, and top lap driving mechanism comprises the driving-disc of central shaft, upper sliding sleeve, low sleeve, upper bearing (metal), lower bearing, central shaft bearing, central shaft driven wheel and top lap; Central shaft is through the endoporus of sun gear driving shaft, and driving-disc is fixed on the upper end of central shaft, and central shaft driven wheel is fixed on the bottom of central shaft, and the lower end of central shaft is arranged on support by central shaft bearing; Upper sliding sleeve and low sleeve are enclosed within the upper and lower of central shaft respectively, are slidably matched with central shaft; Upper sliding sleeve is arranged on the upper end of sun gear driving shaft endoporus by upper bearing (metal), and low sleeve is arranged on the lower end of sun gear driving shaft endoporus by upper bearing (metal).
Above-described planetary gear type twin grinding or polishing machine, comprise ring gear elevating mechanism, ring gear driving mechanism comprises gear ring support, lifting cover, gear ring driven wheel and bracket bearing, and gear ring support comprises support and bearing block, and ring gear is fixed on support.Bearing block is arranged on lifting by bracket bearing and puts; Lifting cover pine is enclosed within the outside of mount pad, is slidably matched with mount pad; Lifting cover is seated on the second swivel nut, is supported by the end face of the second swivel nut; Gear ring driven wheel is fixed on bearing block.
Above-described planetary gear type twin grinding or polishing machine, sun gear driving mechanism comprises centre wheel and center wheel seat, and center wheel seat is fixed on the upper end of sun gear driving shaft, and centre wheel is fixed on the wheel seat of center, and sun gear is fixed on centre wheel.
The twin grinding of the utility model planetary gear type or polishing machine can adjust the height of sun gear easily, adjustment process can be carried out at any time, do not need in adjustment process to dismantle part, can not more become equipment assembly precision, lathe long-term working stability can be ensured, adopt the sun gear elevating mechanism of this equipment, the wearing and tearing of sun gear can evenly, and service life improves greatly.
[accompanying drawing explanation]
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail.
Fig. 1 is the sectional view of the twin grinding of prior art planetary gear type or polishing machine body top.
Fig. 2 is the sectional view of the twin grinding of prior art planetary gear type or polishing machine grinding component.
Fig. 3 is the structural representation of the planetary gear type twin grinding of the utility model embodiment or polishing machine.
Fig. 4 is the partial enlarged drawing at I position in Fig. 3.
[detailed description of the invention]
The structure of the utility model embodiment planetary gear type twin grinding (polishing) machine as shown in Figure 3, comprise frame, sun gear 10, ring gear 11, lower abrasive disk 12, sun gear driving mechanism, ring gear driving mechanism, lower abrasive disk driving mechanism, top lap driving mechanism, sun gear elevating mechanism and ring gear elevating mechanism.
The mount pad 1 that frame comprises support 19 and is fixed on support 19, mount pad 1 hollow, bottom has installs bead 101, and the bead 101 of mount pad is fixed on support 19 with screw 29.
Sun gear elevating mechanism comprises lift drive mechanism, swivel nut 5, swivel nut 6, leg-of-mutton supporting plate 7 and 3 pull bars 8.
Swivel nut 5 pine is enclosed within outside mount pad 1, and the lower end of swivel nut 5 is supported by the bead 101 of mount pad 1. and the internal thread of swivel nut 6 and the external screw thread of swivel nut 5 screw.The bead 101 of mount pad 1 has three tie rod holes, the upper end of pull bar 8 is fixed on swivel nut 6, and the lower end of pull bar 8, through tie rod hole, is fixed on leg-of-mutton supporting plate 7.
The external screw thread of swivel nut 5 is positioned at the top of swivel nut 5, and a gear 501 is arranged at the bottom of swivel nut 5.Lift drive mechanism comprises the reductor 13 driven by motor and the driven wheel 14 driven by reductor 13, and the gear 501 of swivel nut 5 is by driven wheel 14 driven rotary.
Lower abrasive disk driving mechanism comprises pallet 37, lower abrasive disk driving shaft 3 and lower abrasive disk driven wheel 15.Lower abrasive disk driving shaft 3 is hollow shaft, and lower abrasive disk driving shaft 3 is through the endoporus of mount pad 1, and upper and lower is by the upper bearing (metal) 16 in mount pad 1 endoporus, and lower bearing 35 supports.Lower abrasive disk is fixed on pallet 37, and pallet 37 is fixed on the upper end of lower abrasive disk driving shaft 3, and lower abrasive disk driven wheel 15 is fixed on the lower end of lower abrasive disk driving shaft 3 by nut 17.
Sun gear driving mechanism comprises sun gear driving shaft 2, centre wheel 18, center wheel seat 20, sliding sleeve 21 and sun gear driven wheel 36, center wheel seat 20 is fixed on the upper end of sun gear driving shaft 2, and centre wheel 18 is fixed on center wheel seat 20, and sun gear 10 is fixed on centre wheel.
Sun gear driving shaft 2 is through the endoporus of lower abrasive disk driving shaft 3.Sliding sleeve 21 is enclosed within the outside of sun gear driving shaft 2, is slidably matched with sun gear driving shaft 2.The top and bottom of sliding sleeve 21 are supported by two bearings 22 in abrasive disk driving shaft 3 endoporus respectively.Supporting plate 7 is arranged on the bottom of sun gear driving shaft 2 by thrust bearing 23, and sun gear driven wheel 36 is fixed on the lower end of sun gear driving shaft 2.
Sun gear driving shaft 2 is hollow shaft, and top lap driving mechanism comprises the driving-disc 30 of central shaft 4, upper sliding sleeve 23, low sleeve 24, upper bearing (metal) 25, lower bearing 26, central shaft bearing 27, central shaft driven wheel 28 and top lap.Central shaft 4 is through the endoporus of sun gear driving shaft 2, and driving-disc is fixed on the upper end of central shaft 4, and central shaft driven wheel 28 is fixed on the bottom of central shaft 4, and the lower end of central shaft 4 is arranged on the bottom of support 19 by central shaft bearing 27.Upper sliding sleeve 23 and low sleeve 24 are enclosed within the upper and lower of central shaft 4 respectively, are slidably matched with central shaft 4.Upper sliding sleeve 23 is arranged on the upper end of sun gear driving shaft 2 endoporus by upper bearing (metal) 25, and low sleeve 24 is arranged on the lower end of sun gear driving shaft 2 endoporus by upper bearing (metal) 25.
Ring gear driving mechanism comprises gear ring support, lifting cover 31, gear ring driven wheel 32 and bracket bearing 33, and gear ring support comprises support 34 and bearing block 38, and support 34 is fixed on bearing block 38.Ring gear 11 is fixed on support.Bearing block 38 is arranged on lifting cover 31 by two bracket bearings 33.Lifting cover 31 pine is enclosed within the outside of mount pad 1, is slidably matched with mount pad 1.Lifting cover 31 is seated on swivel nut 6, is supported by the end face of swivel nut 6.Gear ring driven wheel 32 is fixed on the bottom of bearing block 38.
When the above embodiment of the utility model will adjust the height of sun gear and ring gear, can be undertaken by following course of action:
1) start elevating motor, drive lifting reductor 13 to rotate by V-shape belt;
2) output shaft of lifting reductor 13 is with movable snail sleeve 5 to rotate by driven wheel 14;
3) in swivel nut 5 rotary course, screw with swivel nut 6, the convert rotational motion of swivel nut 5 is vertical rectilinear motion by swivel nut 6;
4) swivel nut 6 drives supporting plate 7 by pull bar 8, supporting plate 7 drives sun gear 10 to move up and down by sun gear driving shaft 2, and meanwhile, swivel nut 6 drives lifting cover 31, lifting cover 31 drives ring gear 11 to move up and down by gear ring support, realizes the adjustment of sun gear and ring gear height.
The above embodiment of the utility model can adjust the height of sun gear and ring gear very easily simultaneously.Just can complete sun gear and ring gear Height Adjustment by means of only control lifting motor, need not part be dismantled, can not more become equipment assembly precision, ensure lathe long-term working stability.The above embodiment of the utility model can realize stepless changing to sun gear and ring gear height, and can adjust very continually, and the wearing and tearing of sun gear and ring gear can be very even, and service life can improve several times.
Claims (7)
1. planetary gear type twin grinding or a polishing machine, comprises frame, sun gear, ring gear, lower abrasive disk, sun gear driving mechanism, ring gear driving mechanism, lower abrasive disk driving mechanism and top lap driving mechanism; Sun gear driving mechanism comprises sun gear driving shaft, and sun gear is fixed on the upper end of sun gear driving shaft; Frame comprises support and is fixed on the mount pad on support, the middle part of sun gear driving shaft is supported by mount pad, it is characterized in that, comprise sun gear elevating mechanism, sun gear elevating mechanism comprises lift drive mechanism, the first swivel nut, the second swivel nut, supporting plate and complex root pull bar; First swivel nut pine is enclosed within outside mount pad, is supported by mount pad, and the internal thread of the second swivel nut and the external screw thread of the first swivel nut screw, and the first swivel nut is driven by lift drive mechanism; The bottom of mount pad comprises a plurality of tie rod hole, and the upper end of pull bar is fixed on the second swivel nut, and the lower end of pull bar is through tie rod hole, and be fixed on supporting plate, supporting plate is arranged on the bottom of sun gear driving shaft.
2. planetary gear type twin grinding according to claim 1 or polishing machine, is characterized in that, mount pad bottom comprises bead, and the bead of mount pad is fixed on support; The bead of mount pad comprises the tie rod hole described in three, described pull bar is three; The lower end of the first swivel nut is supported by the bead of mount pad, and the external screw thread of the first swivel nut is positioned at the top of the first swivel nut, and the bottom of the first swivel nut comprises gear; The driven wheel that lift drive mechanism comprises reductor and driven by reductor, the gear of the first swivel nut is driven by driven wheel.
3. planetary gear type twin grinding according to claim 1 or polishing machine, is characterized in that, lower abrasive disk driving mechanism comprises pallet, lower abrasive disk driving shaft and lower abrasive disk driven wheel; Lower abrasive disk driving shaft is through the endoporus of mount pad, and the upper and lower of lower abrasive disk driving shaft is supported respectively by bearing by mount pad; Lower abrasive disk is fixed on pallet, and pallet is fixed on the upper end of lower abrasive disk driving shaft, and lower abrasive disk driven wheel is fixed on the lower end of lower abrasive disk driving shaft.
4. planetary gear type twin grinding according to claim 3 or polishing machine, is characterized in that, sun gear driving mechanism comprises sliding sleeve and sun gear driven wheel, and lower abrasive disk driving shaft is hollow shaft, and sun gear driving shaft is through the endoporus of lower abrasive disk driving shaft; Sliding sleeve is enclosed within the outside of sun gear driving shaft, is slidably matched with sun gear driving shaft; The top and bottom of sliding sleeve are supported respectively by bearing by abrasive disk driving shaft; Supporting plate is arranged on the bottom of sun gear driving shaft by thrust bearing, and sun gear driven wheel is fixed on the lower end of sun gear driving shaft.
5. planetary gear type twin grinding according to claim 4 or polishing machine, it is characterized in that, sun gear driving shaft is hollow shaft, and top lap driving mechanism comprises the driving-disc of central shaft, upper sliding sleeve, low sleeve, upper bearing (metal), lower bearing, central shaft bearing, central shaft driven wheel and top lap; Central shaft is through the endoporus of sun gear driving shaft, and driving-disc is fixed on the upper end of central shaft, and central shaft driven wheel is fixed on the bottom of central shaft, and the lower end of central shaft is arranged on support by central shaft bearing; Upper sliding sleeve and low sleeve are enclosed within the upper and lower of central shaft respectively, are slidably matched with central shaft; Upper sliding sleeve is arranged on the upper end of sun gear driving shaft endoporus by upper bearing (metal), and low sleeve is arranged on the lower end of sun gear driving shaft endoporus by upper bearing (metal).
6. planetary gear type twin grinding according to claim 1 or polishing machine, it is characterized in that, comprise ring gear elevating mechanism, ring gear driving mechanism comprises gear ring support, lifting cover, gear ring driven wheel and bracket bearing, gear ring support comprises support and bearing block, and ring gear is fixed on support; Bearing block is arranged on lifting by bracket bearing and puts; Lifting cover pine is enclosed within the outside of mount pad, is slidably matched with mount pad; Lifting cover is seated on the second swivel nut, is supported by the end face of the second swivel nut; Gear ring driven wheel is fixed on bearing block.
7. planetary gear type twin grinding according to claim 1 or polishing machine, it is characterized in that, sun gear driving mechanism comprises centre wheel and center wheel seat, and center wheel seat is fixed on the upper end of sun gear driving shaft, centre wheel is fixed on the wheel seat of center, and sun gear is fixed on centre wheel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520230801.7U CN204868548U (en) | 2015-04-16 | 2015-04-16 | Two -sided grinding of planetary gear formula or burnishing machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520230801.7U CN204868548U (en) | 2015-04-16 | 2015-04-16 | Two -sided grinding of planetary gear formula or burnishing machine |
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| Publication Number | Publication Date |
|---|---|
| CN204868548U true CN204868548U (en) | 2015-12-16 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520230801.7U Expired - Fee Related CN204868548U (en) | 2015-04-16 | 2015-04-16 | Two -sided grinding of planetary gear formula or burnishing machine |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104924211A (en) * | 2015-04-16 | 2015-09-23 | 深圳赛贝尔自动化设备有限公司 | Planetary gear type two-sided lapping/polishing machine |
| CN106695536A (en) * | 2016-12-22 | 2017-05-24 | 昆明台鼎精密机械有限公司 | Balance type disk feeding device for double-side grinding machine of sapphire |
| CN106737126A (en) * | 2016-12-22 | 2017-05-31 | 昆明台鼎精密机械有限公司 | A kind of high precision balance type sapphire twin grinder |
| CN106737191A (en) * | 2016-12-30 | 2017-05-31 | 浙江工业大学 | It is a kind of to realize the mechanism that lower polishing disk irrational number is rotated |
| CN107877368A (en) * | 2017-12-22 | 2018-04-06 | 金岭机床（广州）有限公司 | A kind of elevating adjusting device of gear ring in grinder and sun gear |
-
2015
- 2015-04-16 CN CN201520230801.7U patent/CN204868548U/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104924211A (en) * | 2015-04-16 | 2015-09-23 | 深圳赛贝尔自动化设备有限公司 | Planetary gear type two-sided lapping/polishing machine |
| CN106695536A (en) * | 2016-12-22 | 2017-05-24 | 昆明台鼎精密机械有限公司 | Balance type disk feeding device for double-side grinding machine of sapphire |
| CN106737126A (en) * | 2016-12-22 | 2017-05-31 | 昆明台鼎精密机械有限公司 | A kind of high precision balance type sapphire twin grinder |
| CN106695536B (en) * | 2016-12-22 | 2018-08-10 | 昆明台鼎精密机械有限公司 | A kind of balanced type loading device of sapphire twin grinder |
| CN106737126B (en) * | 2016-12-22 | 2018-11-20 | 昆明台鼎精密机械有限公司 | A kind of high precision balance type sapphire twin grinder |
| CN106737191A (en) * | 2016-12-30 | 2017-05-31 | 浙江工业大学 | It is a kind of to realize the mechanism that lower polishing disk irrational number is rotated |
| CN106737191B (en) * | 2016-12-30 | 2019-03-26 | 浙江工业大学 | A kind of mechanism can be realized lower polishing disk irrational number rotation |
| CN107877368A (en) * | 2017-12-22 | 2018-04-06 | 金岭机床（广州）有限公司 | A kind of elevating adjusting device of gear ring in grinder and sun gear |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20151216 |