CN104002211A - Vertical type crankshaft grinding machine - Google Patents
Vertical type crankshaft grinding machine Download PDFInfo
- Publication number
- CN104002211A CN104002211A CN201310061345.3A CN201310061345A CN104002211A CN 104002211 A CN104002211 A CN 104002211A CN 201310061345 A CN201310061345 A CN 201310061345A CN 104002211 A CN104002211 A CN 104002211A
- Authority
- CN
- China
- Prior art keywords
- guide rail
- servomotor
- headstock
- tailstock
- upright guide
- 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
Links
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
- B24B5/00—Machines or devices designed for grinding surfaces of revolution on work, including those which also grind adjacent plane surfaces; Accessories therefor
- B24B5/36—Single-purpose machines or devices
- B24B5/42—Single-purpose machines or devices for grinding crankshafts or crankpins
-
- 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
- B24B5/00—Machines or devices designed for grinding surfaces of revolution on work, including those which also grind adjacent plane surfaces; Accessories therefor
- B24B5/36—Single-purpose machines or devices
- B24B5/42—Single-purpose machines or devices for grinding crankshafts or crankpins
- B24B5/421—Supports therefor
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Grinding Of Cylindrical And Plane Surfaces (AREA)
Abstract
The invention discloses a vertical type crankshaft grinding machine which comprises a lathe bed, a grinding wheel frame, a static piezoelectric spindle and a grinding wheel. The grinding wheel frame is driven by a first servo motor to move back and forth along a horizontal guide rail, a turntable is arranged on the right of the lathe bed, the lower end of a quadrangular body is vertically connected with the top of the turntable, one side of the quadrangular body is perpendicular to the radial direction of the grinding wheel, the lower portion of the side of the quadrangular body is provided with a headstock, the lower portion of the headstock is provided with a driving motor, the upper portion of the headstock is provided with a clamping sleeve in matched connection with a driving motor shaft, an eccentric clamp is arranged in the clamping sleeve, and the upper portion of the side of the quadrangular body is provided with a second vertical guide rail, a tailstock and a second servo motor. A rotating shaft vertically penetrates the center of the quadrangular body, the lower end of the rotating shaft is fixedly connected with the turntable, the upper end of the rotating shaft is in matched connection with a large gear, the large gear is meshed with a small gear, and the small gear is driven by a third servo motor to rotate. The grinding machine can improve grinding processing precision of a crankshaft connecting rod neck and reduce manufacturing cost.
Description
Technical field
The present invention relates to a kind of grinding machine, be specifically related to a kind of vertical crankshaft grinding machine for machining crankshafts connecting rod neck cylindrical.
Background technology
The lathe of existing grinding main bearing journal and connecting rod neck cylindrical is horizontal hone, as " a kind of crankshaft grinding machine " of CN 202479905 U bulletins, comprise tailstock, grinding carriage, bracing frame, headstock and lathe bed, the two ends of lathe bed are respectively equipped with tailstock and headstock, between tailstock and headstock, be provided with bent axle, one side of bent axle is provided with grinding carriage, and grinding carriage is provided with emery wheel, and the opposite side of bent axle is provided with bracing frame.This grinding machine, by clamping once on same lathe bed, just can be realized trunnion and the connecting rod neck of grinding bent axle.And for example CN 101590619A disclosed " a kind of numerical control crankshaft crank cylindrical grinding machine ", comprises lathe bed, workbench, console, workpiece control system and grinding system, protective plate; Described workpiece control system comprises fixture, the headstock, cylindrical amount instrument, and described grinding system comprises grinding carriage, emery wheel, trimmer; The feature of this grinding machine is: described fixture mouth is just to operator, and described cylindrical amount instrument and emery wheel are located at respectively the left and right sides of fixture, described trimmer be located at fixture after, described protective plate is arranged between the fixture mouth and emery wheel on workbench.But there are the following problems to adopt horizontal hone machining crankshafts: (1) its in the time of processing excircles, bent axle horizontal positioned, owing to being subject to the impact of self gravitation and connecting rod neck, in the time of crankshaft rotating, is difficult for ensureing the cylindricalo grinding precision of connecting rod neck; (2) after each clamping, can only carry out grinding to a bent axle, efficiency is lower; (3) structure of bent axle fixture is more complicated, requires to adjust technical ability high.Now existing high-precision crankshaft grinding machine, adopts the mode clamping bent axle on folder one top, does not need eccentric fixture, and with the move around connecting rod neck of machining crankshafts of numerical control bistrique, out-of-roundness can reach 2 microns; But cost of equipment is high, energy consumption is high, thereby manufacturing cost is increased greatly, is only suitable for processing the bent axle of sedan limousine.
Summary of the invention
The object of this invention is to provide a kind of vertical crankshaft grinding machine, to improve the grinding accuracy of crank-shaft link neck, improve working (machining) efficiency, reduce energy consumption, can significantly reduce manufacturing cost, be both applicable to the bent axle of processing sedan limousine, be applicable to again the bent axle of processing general car.
Vertical crankshaft grinding machine of the present invention, comprise lathe bed, lower end and be located at the grinding carriage that the horizontal guide rail on lathe bed left part coordinates, the static pressure electric main shaft coordinating with the first upright guide rail being located on grinding carriage, the emery wheel being connected on static pressure electric main shaft, this grinding carriage is driven and is moved around along horizontal guide rail by the first servomotor, one rotating disk is located on the right part of described lathe bed, below this rotating disk and lathe bed right part above between be provided with plane bearing; The lower end of one four prisms cylinder be vertically connected on described rotating disk above, a side of described four prisms cylinder is radially vertical with described emery wheel; Bottom in this side of described four prisms cylinder is provided with the headstock, is provided with drive motors in the bottom of this headstock, is provided with the retaining sleeve being connected with drive motors axle on the top of this headstock, in this retaining sleeve, is provided with eccentric fixture; The tailstock that is provided with the second upright guide rail on the top of this side of described four prisms cylinder, coordinate with described the second upright guide rail, be located at the second servomotor on this tailstock, this second servomotor drives tailstock to move up and down along the second upright guide rail; One turning cylinder vertically passes the center of described four prisms cylinder, the lower end of this turning cylinder is fixedly connected with described rotating disk, the upper end of this turning cylinder and a gear wheel are connected, and described gear wheel engages with a pinion, and described pinion is by the 3rd servomotor driven rotary being located in frame.
Further, in order to improve the efficiency of grinding, this grinding machine adopts double, also be provided with the headstock in the bottom, another side paralleling with described four prisms cylinder one side, bottom at this headstock is provided with drive motors, be provided with the retaining sleeve being connected with drive motors axle on the top of this headstock, in this retaining sleeve, be provided with eccentric fixture; Also the tailstock that is provided with the second upright guide rail on the top of described four prisms cylinder another side, coordinate with described the second upright guide rail, be located at the second servomotor on this tailstock, this second servomotor drives tailstock to move up and down along the second upright guide rail.
Further, on described eccentric fixture, be provided with the eccentric jack coordinating with bent axle one end and the counterweight hole that keeps eccentric fixture balance, one end of bent axle is inserted in eccentric jack, and the connecting rod neck on bent axle is positioned on the axis of eccentric fixture, and counterweight is provided with mass in hole.
Further, described the first servomotor, static pressure electric main shaft, drive motors, the second servomotor and the 3rd servomotor are all electrically connected with controller.
The present invention adopts the eccentric fixture in the headstock, tailstock, cooperatively interact upper by bent axle of four prisms cylinder, clamp lower end, drive motors band dynamic crankshaft under the headstock rotates, in the vertical direction adopts emery wheel to carry out grinding to the connecting rod neck of bent axle, compare with existing crankshaft grinding machine, the Cylindrical Grinding Processes precision of connecting rod neck has improved 2-3 doubly, adopt double mode, working (machining) efficiency is also 2 times of existing crankshaft grinding machine, reduce energy consumption, cancelled the centre frame that in the past must use in crankshaft grinding, thereby difficulty and time that lathe is adjusted are reduced significantly, and make the easy left-hand seat of operating personnel, significantly reduce manufacturing cost, both be applicable to the bent axle of processing sedan limousine, be applicable to again the bent axle of processing general car.
Brief description of the drawings
Fig. 1 is structural representation of the present invention.
Fig. 2 is the cooperation schematic diagram of turning cylinder, gear wheel and pinion in the present invention.
In figure: 1-lathe bed, 2-horizontal guide rail, 3-grinding carriage, 4-the first upright guide rail, 5-static pressure electric main shaft, 6-emery wheel, 7-rotating disk, 8-four prisms cylinder, the 9-headstock, 10-drive motors, 11-the second upright guide rail, 12-tailstock, 13-the second servomotor, 14-eccentric fixture, 15-turning cylinder, 16-gear wheel, 17-pinion, 18-bent axle.
Detailed description of the invention
Below in conjunction with accompanying drawing, the invention will be further described.
Vertical crankshaft grinding machine as shown in Figure 1 and Figure 2 adopts double, comprise lathe bed 1, lower end and be located at the grinding carriage 3 that the horizontal guide rail 2 on lathe bed 1 left part coordinates, the static pressure electric main shaft 5 coordinating with the first upright guide rail 4 being located on grinding carriage 3, the emery wheel 6 being connected on static pressure electric main shaft, this grinding carriage 3 is driven and is moved around along horizontal guide rail by the first servomotor (not marking in figure), emery wheel 6 is cubic boron nitride (being CBN) emery wheel, and static pressure electric main shaft 5 is high-speed static piezoelectricity main shaft, one rotating disk 7 is located on the right part of lathe bed 1, below this rotating disk 7 and lathe bed right part above between be provided with plane bearing, the lower end of one four prisms cylinder 8 be vertically connected on rotating disk 7 above, a side of four prisms cylinder 8 is radially vertical with emery wheel 6, bottom in four prisms cylinder 8 these sides is provided with the headstock 9, be provided with drive motors 10 in the bottom of this headstock 9, be provided with the retaining sleeve being connected with drive motors axle on the top of this headstock 9, in this retaining sleeve, be provided with eccentric fixture 14, on eccentric fixture 14, be provided with the eccentric jack coordinating with bent axle 18 one end and the counterweight hole that keeps eccentric fixture balance, one end of bent axle 18 is inserted in eccentric jack, connecting rod neck on bent axle 18 is positioned on the axis of eccentric fixture 14, in counterweight hole, be provided with mass (such as lead), be provided with the second upright guide rail 11 on the top of four prisms cylinder 8 these sides, the tailstock 12 coordinating with the second upright guide rail 11, be located at the second servomotor 13 on this tailstock 12, this second servomotor 13 drives tailstock 12 to move up and down along the second upright guide rail 11, also be provided with the headstock 9 in the bottom, another side paralleling with four prisms cylinder 8 one sides, be provided with drive motors 10 in the bottom of this headstock 9, be provided with the retaining sleeve being connected with drive motors axle on the top of this headstock 9, in this retaining sleeve, be provided with eccentric fixture 14, on eccentric fixture 14, be provided with the eccentric jack coordinating with bent axle 18 one end and the counterweight hole that keeps eccentric fixture balance, one end of bent axle 18 is inserted in eccentric jack, connecting rod neck on bent axle 18 is positioned on the axis of eccentric fixture 14, in counterweight hole, be provided with mass (such as lead), also be provided with the second upright guide rail 11 on the top of four prisms cylinder 8 another sides, the tailstock 12 coordinating with the second upright guide rail 11, be located at the second servomotor 13 on this tailstock 12, this second servomotor 13 drives tailstock to move up and down along the second upright guide rail 11, the one vertical center through four prisms cylinder 8 of turning cylinder 15, the lower end of this turning cylinder 15 is fixedly connected with rotating disk 7, the upper end of this turning cylinder 15 and a gear wheel 16 are connected, gear wheel 16 engages with a pinion 17, and pinion 17 is by the 3rd servomotor (not marking in the figure) driven rotary being located in frame.The first servomotor, static pressure electric main shaft 5, drive motors 10, the second servomotor 13 that drive grinding carriage 3 moves around along horizontal guide rail 2 and the 3rd servomotor that drives pinion 17 to rotate are all electrically connected with controller.
Bowlder outside grinding, first the lower end of a bent axle 18 is inserted in the eccentric jack of eccentric fixture 14 of four prisms cylinder 8 one sides, the connecting rod neck that needs grinding of this bent axle 18 is positioned on the axis of eccentric fixture 14, the tailstock 12 of four prisms cylinder 8 one sides slides into certain distance under the drive of the second servomotor 13 in the second upright guide rail 11, act on the upper end of bent axle 18, bent axle 18 is clamped, again the lower end of another bent axle 18 is inserted in the eccentric jack of eccentric fixture 14 of four prisms cylinder 8 opposite sides, the connecting rod neck that needs grinding of this bent axle 18 is positioned on the axis of eccentric fixture 14, the tailstock 12 of four prisms cylinder 8 opposite sides slides into certain distance under the drive of the second servomotor 13 in the second upright guide rail 11, act on the upper end of bent axle 18, bent axle 18 is clamped, clamping completes, then the first driven by servomotor grinding carriage 3 on grinding carriage 3 moves left and right in horizontal guide rail 2, the feeding of grinding machine left and right, static pressure electric main shaft 5 drives emery wheel 6 to move up and down in the first upright guide rail 4, grinding machine bottom and top feed, drive motors 10 driving cranks 18 in the headstock 9 rotate, the connecting rod neck cylindrical of emery wheel 6 grinding bent axles 18, being located in frame drives the 3rd servomotor that pinion 17 rotates to pass through pinion 17, gear wheel 16, turning cylinder 15, rotating disk 7 drives four prisms cylinder 8 to rotate relative to lathe bed 1, the grinding that realizes the bent axle 18 of four prisms cylinder 8 both sides is switched, can realize the grinding of the connecting rod neck of two bent axles according to the interlock of digital control system instruction.
Claims (4)
1. vertical crankshaft grinding machine, comprise lathe bed (1), lower end and be located at the grinding carriage (3) that the horizontal guide rail (2) on lathe bed left part coordinates, the static pressure electric main shaft (5) coordinating with the first upright guide rail (4) being located on grinding carriage, the emery wheel (6) being connected on static pressure electric main shaft, this grinding carriage is driven and is moved around along horizontal guide rail by the first servomotor, it is characterized in that:
One rotating disk (7) is located on the right part of described lathe bed (1), below this rotating disk and lathe bed right part above between be provided with plane bearing;
The lower end of one four prisms cylinder (8) be vertically connected on described rotating disk (7) above, a side of described four prisms cylinder (8) is radially vertical with described emery wheel (6); Bottom in this side of described four prisms cylinder (8) is provided with the headstock (9), is provided with drive motors (10) in the bottom of this headstock, is provided with the retaining sleeve being connected with drive motors axle on the top of this headstock, is provided with eccentric fixture (14) in this retaining sleeve; The tailstock (12) that is provided with the second upright guide rail (11) on the top of this side of described four prisms cylinder (8), coordinate with described the second upright guide rail, be located at the second servomotor (13) on this tailstock, this second servomotor drives tailstock to move up and down along the second upright guide rail;
One turning cylinder (15) vertically passes the center of described four prisms cylinder (8), the lower end of this turning cylinder is fixedly connected with described rotating disk (7), the upper end of this turning cylinder and a gear wheel (16) are connected, described gear wheel engages with a pinion (17), and described pinion is by the 3rd servomotor driven rotary being located in frame.
2. vertical crankshaft grinding machine according to claim 1, it is characterized in that: be also provided with the headstock (9) in the bottom, another side paralleling with described four prisms cylinder (8) one sides, be provided with drive motors (10) in the bottom of this headstock, be provided with the retaining sleeve being connected with drive motors axle on the top of this headstock, in this retaining sleeve, be provided with eccentric fixture (14); Also the tailstock (12) that is provided with the second upright guide rail (11) on the top of described four prisms cylinder (8) another side, coordinate with described the second upright guide rail, be located at the second servomotor (13) on this tailstock, this second servomotor drives tailstock to move up and down along the second upright guide rail.
3. vertical crankshaft grinding machine according to claim 1 and 2, it is characterized in that: on described eccentric fixture (14), be provided with the eccentric jack coordinating with bent axle (18) one end and the counterweight hole that keeps eccentric fixture balance, one end of bent axle is inserted in eccentric jack, connecting rod neck on bent axle is positioned on the axis of eccentric fixture, and counterweight is provided with mass in hole.
4. vertical crankshaft grinding machine according to claim 1 and 2, is characterized in that: described the first servomotor, static pressure electric main shaft (5), drive motors (10), the second servomotor (13) and the 3rd servomotor are all electrically connected with controller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310061345.3A CN104002211A (en) | 2013-02-27 | 2013-02-27 | Vertical type crankshaft grinding machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310061345.3A CN104002211A (en) | 2013-02-27 | 2013-02-27 | Vertical type crankshaft grinding machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104002211A true CN104002211A (en) | 2014-08-27 |
Family
ID=51363266
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310061345.3A Pending CN104002211A (en) | 2013-02-27 | 2013-02-27 | Vertical type crankshaft grinding machine |
Country Status (1)
| Country | Link |
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| CN (1) | CN104002211A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105058204A (en) * | 2015-07-03 | 2015-11-18 | 金华市源创玉业有限公司 | Jade processing equipment |
| CN110524336A (en) * | 2019-08-30 | 2019-12-03 | 潍坊雷腾动力机械有限公司 | A kind of adaptive grinding tool of vertical crankshaft |
| CN110815012A (en) * | 2019-11-08 | 2020-02-21 | 温州大学瓯江学院 | Burnishing device of mechanical seal processing usefulness |
| CN111300236A (en) * | 2020-04-01 | 2020-06-19 | 浙江辛子精工机械有限公司 | Intelligent high-precision vertical grinding machine |
| CN114952441A (en) * | 2022-06-15 | 2022-08-30 | 无锡市明鑫数控磨床有限公司 | Vertical grinding processing technology for wind power TRB bearing |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN200995307Y (en) * | 2007-01-24 | 2007-12-26 | 南京工业大学 | Numerical control milling and gear hobbing combined machine tool |
| JP2008279594A (en) * | 2007-05-12 | 2008-11-20 | Kapp Gmbh | Precision machining apparatus for precision finishing of workpiece |
| CN101745804A (en) * | 2008-12-17 | 2010-06-23 | 天津市精诚机床制造有限公司 | Numerical control gear shaping, gear milling compound machine tool |
| CN201669609U (en) * | 2010-06-09 | 2010-12-15 | 株洲沃尔得特种齿轮有限公司 | Vertical grinder |
| US20110081833A1 (en) * | 2009-10-02 | 2011-04-07 | Kapp Gmbh | Method for the operation of a gear or profile grinding machine and gear or profile grinding machine |
| CN102167247A (en) * | 2011-01-19 | 2011-08-31 | 宁国金鑫电机有限公司 | Turret type work rest |
| CN203109733U (en) * | 2013-02-27 | 2013-08-07 | 重庆恒博机械制造有限公司 | Vertical crankshaft grinding machine |
-
2013
- 2013-02-27 CN CN201310061345.3A patent/CN104002211A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN200995307Y (en) * | 2007-01-24 | 2007-12-26 | 南京工业大学 | Numerical control milling and gear hobbing combined machine tool |
| JP2008279594A (en) * | 2007-05-12 | 2008-11-20 | Kapp Gmbh | Precision machining apparatus for precision finishing of workpiece |
| CN101745804A (en) * | 2008-12-17 | 2010-06-23 | 天津市精诚机床制造有限公司 | Numerical control gear shaping, gear milling compound machine tool |
| US20110081833A1 (en) * | 2009-10-02 | 2011-04-07 | Kapp Gmbh | Method for the operation of a gear or profile grinding machine and gear or profile grinding machine |
| CN201669609U (en) * | 2010-06-09 | 2010-12-15 | 株洲沃尔得特种齿轮有限公司 | Vertical grinder |
| CN102167247A (en) * | 2011-01-19 | 2011-08-31 | 宁国金鑫电机有限公司 | Turret type work rest |
| CN203109733U (en) * | 2013-02-27 | 2013-08-07 | 重庆恒博机械制造有限公司 | Vertical crankshaft grinding machine |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105058204A (en) * | 2015-07-03 | 2015-11-18 | 金华市源创玉业有限公司 | Jade processing equipment |
| CN110524336A (en) * | 2019-08-30 | 2019-12-03 | 潍坊雷腾动力机械有限公司 | A kind of adaptive grinding tool of vertical crankshaft |
| CN110815012A (en) * | 2019-11-08 | 2020-02-21 | 温州大学瓯江学院 | Burnishing device of mechanical seal processing usefulness |
| CN111300236A (en) * | 2020-04-01 | 2020-06-19 | 浙江辛子精工机械有限公司 | Intelligent high-precision vertical grinding machine |
| CN111300236B (en) * | 2020-04-01 | 2021-07-27 | 浙江辛子精工机械有限公司 | Intelligent high-precision vertical grinding machine |
| CN114952441A (en) * | 2022-06-15 | 2022-08-30 | 无锡市明鑫数控磨床有限公司 | Vertical grinding processing technology for wind power TRB bearing |
| CN114952441B (en) * | 2022-06-15 | 2023-10-13 | 无锡市明鑫数控磨床有限公司 | Vertical grinding processing technology for wind power TRB bearing |
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Application publication date: 20140827 |