CN105234812A - Dual-drive centreless grinding wheel dynamic and static motorized spindle - Google Patents
Dual-drive centreless grinding wheel dynamic and static motorized spindle Download PDFInfo
- Publication number
- CN105234812A CN105234812A CN201510758713.9A CN201510758713A CN105234812A CN 105234812 A CN105234812 A CN 105234812A CN 201510758713 A CN201510758713 A CN 201510758713A CN 105234812 A CN105234812 A CN 105234812A
- Authority
- CN
- China
- Prior art keywords
- spacer ring
- cooling water
- spindle
- emery wheel
- grinding wheel
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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Classifications
-
- 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
- B24B41/04—Headstocks; Working-spindles; Features relating thereto
- B24B41/044—Grinding spindles with magnetic or electromagnetic bearings; Features related thereto
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B55/00—Safety devices for grinding or polishing machines; Accessories fitted to grinding or polishing machines for keeping tools or parts of the machine in good working condition
- B24B55/02—Equipment for cooling the grinding surfaces, e.g. devices for feeding coolant
Abstract
The invention belongs to the technical field of grinding equipment and discloses a dual-drive centreless grinding wheel dynamic and static motorized spindle. The dual-drive centreless grinding wheel dynamic and static motorized spindle comprises a gland, a left motor mechanism, a left balance weight, a left pressure plate, an inner cooling sand wheel, a right pressure plate, a right balance weight, a right motor mechanism, a right tightening cap, a rotor spindle, a dynamical balancing instrument and a rotating joint, wherein the left motor mechanism and the right motor mechanism are arranged at the left and the right ends of the rotor spindle, a hollow structure is arranged inside the rotor spindle, a cooling waterway mechanism and the dynamical balancing instrument are arranged on the hollow structure, the right tightening cap for fastening is arranged at the right end of the rotor spindle, the left pressure plate and the right pressure plate for fixing the inner cooling sand wheel are arranged on the left end and the right end of the middle part of the rotor spindle, and the left balance weight and the right balance weight are arranged on the left pressure plate and the right pressure plate. The dual-drive centreless grinding wheel dynamic and static motorized spindle provided by the invention has a reasonable and compact structure, the inner cooling sand wheel can reduce grinding heat, and due to the adoption of the dynamical balancing instrument and the balance weights inside the spindle, the dual-drive centreless grinding wheel dynamic and static motorized spindle has the characteristics of high power, high bearing capability, stable movement, high degree of automation, high rotation accuracy and the like.
Description
Technical field
The invention belongs to equipment for grinding technical field, particularly a kind of Dual Drive coreless grinding wheel dynamic/static piezoelectric main shaft.
Background technology
At present, the main shaft that domestic centerless grinder adopts is generally mechanical axis, driven by bindiny mechanism by external motor, bearing many employings rolling bearing or hydrostatic bearing, because external motor drives, driving-chain is many, grinding wheel spindle overall structure is huge, single motor driving power is little, emery wheel discontinuity, when carrying out grinding, by external refrigeration liquid, spray cooling is carried out to contact site, but because of airflow barrier inhibition, cooling effect is general, often there is the phenomenon that surface of the work is burnt because of grinding high temperature, reduce product percent of pass, dynamic balancing is carried out in crushing back balance many employings balance weight adjustment of grinding wheel spindle, weak effect, time is long, efficiency is low.
Summary of the invention
The present invention is directed to deficiency and the defect of the existence of existing centreless grinding grinding technique, a kind of Dual Drive coreless grinding wheel dynamic/static piezoelectric main shaft is provided, left and right two motors are adopted to drive, power is large, transmission mechanism is simple, cooling fluid by the direct spray contact surface of interior cooling emery wheel, and adopts automatic adjustable balance amount, and principal axis balance is good.
The technical solution adopted in the present invention: a kind of Dual Drive coreless grinding wheel dynamic/static piezoelectric main shaft, comprise gland, left motor mechanism, left balance weight, left platen, interior cold emery wheel, right platen, right balance weight, right motor mechanism, right friction top, armature spindle, dynamic balance instrument, swivel joint, two ends, described armature spindle left and right are provided with a left side, right motor mechanism, this armature spindle is inner to be provided with cooling water channel mechanism for hollow structure and to be provided with dynamic balance instrument, armature spindle right-hand member is provided with right friction top fastening, in the middle part of armature spindle, left and right end setting is provided with a left side, cooling emery wheel in right platen is fixing, a described left side, right platen is arranged installs a left side, right balance weight.
Described left motor mechanism comprises left end cap, left spacer ring, left front bearing, left axle sleeve, left back bearing, left stator component, left rotor parts, left clamping sleeve, left inside spacer ring, left rotor parts arrange and are fixed on armature spindle left end, the left end of left rotor parts is provided with the left clamping sleeve of fastening effect, this left rotor parts periphery is provided with left stator component, this left stator component arranges and is fixed on middle part in left axle sleeve, left front bearing block and left rear axle bearing are fixedly set in left end and the right-hand member of left axle sleeve, arrange at left front bearing block left end and left spacer ring is installed, left inside spacer ring and left end cap.
Described right motor mechanism comprises right back bearing, right axle sleeve, right front bearing, right spacer ring, right end cap, right clamping sleeve, right stator component, right-hand rotation subassembly, right inside spacer ring, right-hand rotation subassembly arranges and is fixed on armature spindle right-hand member, the right-hand member of right-hand rotation subassembly is provided with the right clamping sleeve of fastening effect, this right-hand rotation subassembly periphery is provided with right stator component, this right stator component arranges and is fixed on middle part in right axle sleeve, front right axle bearing and right back bearing block are fixedly set in right-hand member and the left end of right axle sleeve, arrange at front right axle bearing right-hand member and right spacer ring is installed, right inside spacer ring and right end cap.
Described left axle sleeve is provided with oil inlet passage, in the middle part of this left axle sleeve, external diameter is provided with fuel feed hole and oil outlet, and be communicated with the axial oil duct of axle sleeve, this axial oil duct is communicated with the oil duct leading to inner chamber at axle sleeve two ends, and dock with the oil duct of left front bearing and left back bearing, lead to the left end radial surface of armature spindle, simultaneously left front bearing is provided with oil duct and is communicated with the oil duct of left end cap with left spacer ring.
Described right axle sleeve is provided with oil inlet passage, in the middle part of this right axle sleeve, external diameter is provided with fuel feed hole and oil outlet, and be communicated with the axial oil duct of axle sleeve, this axial oil duct is communicated with the oil duct leading to inner chamber at axle sleeve two ends, and dock with the oil duct of right front bearing and right back bearing, lead to the right-hand member radial surface of armature spindle, simultaneously right front bearing is provided with oil duct and is communicated with the oil duct of right end cap with right spacer ring.
Described cooling water channel mechanism comprises swivel joint, axial cooling water hole, radial cooling water hole, interior cooling emery wheel, described axial cooling water hole is arranged on both sides in the middle part of armature spindle, this axial cooling water hole left end swivel joint is communicated with, right-hand member and close interior cooling emery wheel position arrange the radial cooling water holes of three rows and are communicated with, cooling liquid is by the swivel joint of left end, axial cooling water hole and radial cooling water hole, the inner surface of cooling emery wheel in arriving, the contact surface of cooling emery wheel and workpiece in being arrived by the radial hole of interior cooling emery wheel.
The invention has the beneficial effects as follows: 1. Dual-motors Driving, power is large; 2. dynamic and hydrostatic bearing supporting, rotating accuracy is high, and the life-span is long; 3. cooling emery wheel in adopting, main shaft internal temperature rise is low, and contact site grinding temperature rise is low; 4. adopt dynamic balance instrument and balance weight in axle to balance, grinding wheel spindle balance is good, smooth running.
Accompanying drawing explanation
Fig. 1 is the cross-sectional view of a kind of Dual Drive coreless grinding wheel of the present invention dynamic/static piezoelectric main shaft.
Number in the figure 1 is gland, 2 is left end cap, 3 is left spacer ring, 4 is left front bearing, 5 is left axle sleeve, 6 is left back bearing, 7 is left balance weight, 8 is left platen, 9 is interior cold emery wheel, 10 is right platen, 11 is right balance weight, 12 is right back bearing, 13 is right axle sleeve, 14 is right front bearing, 15 is right spacer ring, 16 is right end cap, 17 is right friction top, 18 is right inside spacer ring, 19 is right clamping sleeve, 20 is right stator component, 21 is right-hand rotation subassembly, 22 is armature spindle, 23 is dynamic balance instrument, 24 is left stator component, 25 is left rotor parts, 26 is left clamping sleeve, 27 is left inside spacer ring, 28 is swivel joint.
Detailed description of the invention
Also by specific embodiment Dual Drive coreless grinding wheel dynamic/static piezoelectric main shaft of the present invention is described in detail more below in conjunction with Fig. 1.
Shown in Fig. 1, a kind of Dual Drive coreless grinding wheel dynamic/static piezoelectric main shaft of the present invention, comprise gland 1, left balance weight 7, left platen 8, interior cold emery wheel 9, right platen 10, right balance weight 11, right friction top 17, armature spindle 22, dynamic balance instrument 23, swivel joint 28, described armature spindle about 22 two ends are provided with a left side, right motor mechanism, inside is provided with cooling water channel mechanism for hollow structure and is provided with dynamic balance instrument 23, it is fastening that right-hand member is provided with right friction top 26, in the middle part of armature spindle 22, left and right end setting is provided with a left side, cooling emery wheel 9 in right platen 8 and 10 is fixing, a described left side, right platen 8 and 10 is arranged installs a left side, right balance weight 7 and 11.
Described left motor mechanism comprises left end cap 2, left spacer ring 3, left front bearing 4, left axle sleeve 5, left back bearing 6, left stator component 24, left rotor parts 25, left clamping sleeve 26, left inside spacer ring 27, left rotor parts 25 arrange and are fixed on armature spindle 22 left end, the left end of left rotor parts 25 is provided with the left clamping sleeve 26 of fastening effect, this left rotor parts periphery is provided with left stator component 24, this left stator component arranges and is fixed on middle part in left axle sleeve 5, left front bearing 4 and left back bearing 6 are fixedly set in left end and the right-hand member of left axle sleeve 5, arrange at left front bearing 4 left end and left spacer ring 3 is installed, left inside spacer ring 27 and left end cap 2.
Described right motor mechanism comprises right back bearing 12, right axle sleeve 13, right front bearing 14, right spacer ring 15, right end cap 16, right clamping sleeve 19, right stator component 20, right-hand rotation subassembly 21, right inside spacer ring 18, right-hand rotation subassembly 21 arranges and is fixed on armature spindle 22 right-hand member, the right-hand member of right-hand rotation subassembly 21 is provided with the right clamping sleeve 19 of fastening effect, this right-hand rotation subassembly periphery is provided with right stator component 20, this right stator component arranges and is fixed on middle part in right axle sleeve 13, right front bearing 14 and right back bearing 12 are fixedly set in right-hand member and the left end of right axle sleeve 13, arrange at right front bearing 14 right-hand member and right spacer ring 15 is installed, right inside spacer ring 18 and right end cap 16.
Described left axle sleeve 5 is provided with oil inlet passage, in the middle part of this left axle sleeve, external diameter is provided with fuel feed hole and oil outlet, and be communicated with the axial oil duct of left axle sleeve 5, this axial oil duct is communicated with the oil duct leading to inner chamber at left axle sleeve two ends, and dock with the oil duct of left front bearing 4 and left back bearing 6, lead to the left end radial surface of armature spindle 22, simultaneously left front bearing 4 is provided with oil duct and is communicated with the oil duct of left spacer ring 3, left end cap 2.
Described right axle sleeve 13 is provided with oil inlet passage, in the middle part of this right axle sleeve, external diameter is provided with fuel feed hole and oil outlet, and be communicated with the axial oil duct of right axle sleeve 13, this axial oil duct is communicated with the oil duct leading to inner chamber at right axle sleeve two ends, and dock with the oil duct of right front bearing 14 and right back bearing 12, lead to the right-hand member radial surface of armature spindle 22, simultaneously right front bearing 14 is provided with oil duct and is communicated with the oil duct of right spacer ring 15, right end cap 16.
Described cooling water channel mechanism comprises swivel joint 28, axial cooling water hole, radial cooling water hole, interior cooling emery wheel 9, described axial cooling water hole is arranged on both sides in the middle part of armature spindle 22, this axial cooling water hole left end swivel joint 28 is communicated with, right-hand member and close interior cooling emery wheel position arrange the radial cooling water holes of three rows and are communicated with, cooling liquid is by the swivel joint 28 of left end, axial cooling water hole and radial cooling water hole, the inner surface of cooling emery wheel 9 in arriving, by the contact surface of cooling emery wheel 9 in the radial hole arrival of interior cooling emery wheel 9 with workpiece.
Use procedure of the present invention or duty: first, the pressure oil provided by external hydraulic station is through a left side, the fuel feed hole of right axle sleeve 5 and 13, by a left side, the oil duct of right axle sleeve 5 and 13 is by left front bearing 4, left back bearing 6 and right front bearing 14, right back bearing 12 oil duct arrives a left side for armature spindle 22, right-hand member radial surface, armature spindle 22 is suspended, at armature spindle 22 and left front bearing 4, left back bearing 6, right front bearing 14, ring-type oil film is formed between right back bearing 12, simultaneously, pressure oil is by the oil duct of left front bearing 4, the left front end radial surface of armature spindle 22 is arrived through left spacer ring 3 oil duct and left end cap 2 oil duct, the gap of left end cap 2 and left front bearing 4 end face is adjusted by left spacer ring 3, pressure oil is by the oil duct of right front bearing 14, armature spindle 22 right front ends radial surface is arrived through right spacer ring 15 oil duct and right end cap 16 oil duct, the gap of right end cap 16 and right front bearing 14 end face is adjusted by right spacer ring 15.By external converter power supply, by left and right stator component 24 and 25, left and right rotor part 20 and 21 synchronously drives armature spindle 22 of the present invention when rotating without when Metal Contact, drives the interior cooling emery wheel 9 be arranged in the middle part of armature spindle 22 to rotate simultaneously.High-pressure cooling liquid is arrived the middle part of close interior cooling emery wheel 9 from left front end by the axial Cooling Holes in the middle part of armature spindle 22 by two swivel joints 28, again by three row's radial holes, cooling emery wheel 9 inner surface in arriving, cool the effect of emery wheel 9 centrifugal force in High Rotation Speed under, cooling emery wheel 9 and processing work contact surface in cooling fluid is arrived by the radial hole of interior cooling emery wheel 9, play the effect reducing grinding heat temperature rise.Before electro spindle running, the balance cooling emery wheel 9 in electro spindle is adjusted by the left and right balance weight 7 and 11 being arranged on left and right platen 8 and 10, after electro spindle running, the dynamic balance instrument 23 installed in armature spindle 22, after interior cooling emery wheel 9 weares and teares, automatically adjust electro spindle aequum according to wear extent, keep the state being in a kind of stable equilibrium in electro spindle in cooling emery wheel 9 operation process all the time.
Claims (4)
1. a Dual Drive coreless grinding wheel dynamic/static piezoelectric main shaft, comprise gland, left motor mechanism, left balance weight, left platen, interior cold emery wheel, right platen, right balance weight, right motor mechanism, right friction top, armature spindle, dynamic balance instrument, swivel joint, it is characterized in that: two ends, described armature spindle left and right are provided with a left side, right motor mechanism, inside is provided with cooling water channel mechanism for hollow structure and is provided with dynamic balance instrument, it is fastening that right-hand member is provided with right friction top, in the middle part of armature spindle, left and right end setting is provided with a left side, cooling emery wheel in right platen is fixing, a described left side, right platen is arranged installs a left side, right balance weight.
2. Dual Drive coreless grinding wheel dynamic/static piezoelectric main shaft according to claim 1, it is characterized in that: described left motor mechanism comprises left end cap, left spacer ring, left front bearing, left axle sleeve, left back bearing, left stator component, left rotor parts, left clamping sleeve, left inside spacer ring, left rotor parts arrange and are fixed on armature spindle left end, the left end of left rotor parts is provided with the left clamping sleeve of fastening effect, this left rotor parts periphery is provided with left stator component, this left stator component arranges and is fixed on middle part in left axle sleeve, left front bearing block and left rear axle bearing are fixedly set in left end and the right-hand member of left axle sleeve, arrange at left front bearing block left end and left spacer ring is installed, left inside spacer ring and left end cap.
3. Dual Drive coreless grinding wheel dynamic/static piezoelectric main shaft according to claim 1, it is characterized in that: described right motor mechanism comprises right back bearing, right axle sleeve, right front bearing, right spacer ring, right end cap, right clamping sleeve, right stator component, right-hand rotation subassembly, right inside spacer ring, right-hand rotation subassembly arranges and is fixed on armature spindle right-hand member, the right-hand member of right-hand rotation subassembly is provided with the right clamping sleeve of fastening effect, this right-hand rotation subassembly periphery is provided with right stator component, this right stator component arranges and is fixed on middle part in right axle sleeve, front right axle bearing and right back bearing block are fixedly set in right-hand member and the left end of right axle sleeve, arrange at front right axle bearing right-hand member and right spacer ring is installed, right inside spacer ring and right end cap.
4. Dual Drive coreless grinding wheel dynamic/static piezoelectric main shaft according to claim 1, it is characterized in that: described cooling water channel mechanism comprises swivel joint, axial cooling water hole, radial cooling water hole, interior cooling emery wheel, described axial cooling water hole is arranged on both sides in the middle part of armature spindle, this axial cooling water hole left end swivel joint is communicated with, right-hand member and close interior cooling emery wheel position arrange the radial cooling water holes of three rows and are communicated with, cooling liquid is by the swivel joint of left end, axial cooling water hole and radial cooling water hole, the inner surface of cooling emery wheel in arriving, the contact surface of cooling emery wheel and workpiece in being arrived by the radial hole of interior cooling emery wheel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510758713.9A CN105234812A (en) | 2015-11-10 | 2015-11-10 | Dual-drive centreless grinding wheel dynamic and static motorized spindle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510758713.9A CN105234812A (en) | 2015-11-10 | 2015-11-10 | Dual-drive centreless grinding wheel dynamic and static motorized spindle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105234812A true CN105234812A (en) | 2016-01-13 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510758713.9A Pending CN105234812A (en) | 2015-11-10 | 2015-11-10 | Dual-drive centreless grinding wheel dynamic and static motorized spindle |
Country Status (1)
| Country | Link |
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| CN (1) | CN105234812A (en) |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR344833A (en) * | 1904-07-16 | 1904-11-14 | Georg Stolzenberg | Device for supplying water to the grinding wheels |
| JPH05111841A (en) * | 1991-10-22 | 1993-05-07 | Shin Nippon Koki Kk | Main spindle driving device in machining device |
| JPH05269669A (en) * | 1992-03-24 | 1993-10-19 | Nisshin Koki Kk | Grinding tool |
| JP2006068856A (en) * | 2004-09-02 | 2006-03-16 | Toyoda Mach Works Ltd | Support structure of grinding wheel shaft in grinder |
| CN201399720Y (en) * | 2009-03-17 | 2010-02-10 | 湖南宇环同心数控机床有限公司 | CBN high-speed built-in grinding wheel rack of electric spindle |
| CN201573113U (en) * | 2009-12-03 | 2010-09-08 | 湖南杰克数控磨床有限公司 | Built-in ultra high-speed electric spindle |
| CN101829907A (en) * | 2010-01-26 | 2010-09-15 | 西安瑞特快速制造工程研究有限公司 | Dual-drive hydrostatic numerical control swinging head |
| CN103286678A (en) * | 2013-05-28 | 2013-09-11 | 上海原创精密机床主轴有限公司 | Multi-functional built-in dynamic-static-pressure motorized spindle for efficient high-speed precision machine |
| CN103447945A (en) * | 2013-08-30 | 2013-12-18 | 栾谨泉 | Improved dual-support oil wedge-shaped dynamic pressure spindle assembly for conical roller coreless grinding machine |
| CN205085817U (en) * | 2015-11-10 | 2016-03-16 | 安阳工学院 | Dull polish static pressure electricity main shaft that moves in turn is not in mood for to dual drive |
-
2015
- 2015-11-10 CN CN201510758713.9A patent/CN105234812A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR344833A (en) * | 1904-07-16 | 1904-11-14 | Georg Stolzenberg | Device for supplying water to the grinding wheels |
| JPH05111841A (en) * | 1991-10-22 | 1993-05-07 | Shin Nippon Koki Kk | Main spindle driving device in machining device |
| JPH05269669A (en) * | 1992-03-24 | 1993-10-19 | Nisshin Koki Kk | Grinding tool |
| JP2006068856A (en) * | 2004-09-02 | 2006-03-16 | Toyoda Mach Works Ltd | Support structure of grinding wheel shaft in grinder |
| CN201399720Y (en) * | 2009-03-17 | 2010-02-10 | 湖南宇环同心数控机床有限公司 | CBN high-speed built-in grinding wheel rack of electric spindle |
| CN201573113U (en) * | 2009-12-03 | 2010-09-08 | 湖南杰克数控磨床有限公司 | Built-in ultra high-speed electric spindle |
| CN101829907A (en) * | 2010-01-26 | 2010-09-15 | 西安瑞特快速制造工程研究有限公司 | Dual-drive hydrostatic numerical control swinging head |
| CN103286678A (en) * | 2013-05-28 | 2013-09-11 | 上海原创精密机床主轴有限公司 | Multi-functional built-in dynamic-static-pressure motorized spindle for efficient high-speed precision machine |
| CN103447945A (en) * | 2013-08-30 | 2013-12-18 | 栾谨泉 | Improved dual-support oil wedge-shaped dynamic pressure spindle assembly for conical roller coreless grinding machine |
| CN205085817U (en) * | 2015-11-10 | 2016-03-16 | 安阳工学院 | Dull polish static pressure electricity main shaft that moves in turn is not in mood for to dual drive |
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Application publication date: 20160113 |
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