CN102189448A - Method for adjusting jacking force of tail bracket of crankshaft grinding machine - Google Patents
Method for adjusting jacking force of tail bracket of crankshaft grinding machine Download PDFInfo
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- CN102189448A CN102189448A CN2011100947991A CN201110094799A CN102189448A CN 102189448 A CN102189448 A CN 102189448A CN 2011100947991 A CN2011100947991 A CN 2011100947991A CN 201110094799 A CN201110094799 A CN 201110094799A CN 102189448 A CN102189448 A CN 102189448A
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- pressure
- grinding machine
- hydraulic
- tailstock
- crankshaft grinding
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Abstract
The invention discloses a method for adjusting the jacking force of a tail bracket of a crankshaft grinding machine. The method comprises the following steps of: arranging a set of hydraulic driving mechanism on the tail bracket of the crankshaft grinding machine; driving a main shaft of the tail bracket by using hydraulic pressure; detecting the pressure used for driving the main shaft of the tail bracket; adjusting oil supply pressure according to a detection result; when a preset pressure value is reached, sending a command out to stop continuously increasing the oil supply pressure; and keeping the pressure constant by using an energy accumulator. In the method, due to the additional arrangement of the set of hydraulic driving mechanism on the tail bracket of the crankshaft grinding machine, the jacking force of a machined crankshaft can be accurately and appropriately adjusted, so that larger deformation is prevented from being generated under the action of the jacking force, and the machining deformation of parts which is generated by reduced contact stiffness due to insufficient jacking force can be prevented simultaneously. The method is suitable for the crankshaft grinding machine or other machine tools which meet requirements similar to the operation requirements of the crankshaft grinding machine.
Description
Technical field
The present invention relates to a kind of method of adjusting crankshaft grinding machine tailstock pressure, belong to the machine tool technical field.
Background technology
For the high accuracy crankshaft grinding machine of machining crankshafts trunnion, its supporting way is to adopt that head, tail frame is top to be supported, and realizes clamping pretension to crankshaft workpiece by the adjusting to the spring mechanism on the tailstock.Because this regulative mode can not accurately be determined the size of pretightning force, thereby influence the contact rigidity of bent axle or make workpiece produce distortion, can't realize high accuracy processing.
Notification number CN201313179 discloses a kind of tail stock for machine tool that has accurate rolling and mobile main shaft, and the structure of this device is used for auto lock tailstock quickly and easily, can not regulate the pretightning force of tailstock center to the clamping pretension of crankshaft workpiece.Notification number CN201049390 discloses a kind of forced locking device that is used for tail stock for machine tool, it comprises tailstock body, footstock guide, bed ways, oil pocket, hydraulic oil pipe, piston, piston rod, spring and locking pressure plate, footstock guide and tailstock body link into an integrated entity, and can on bed ways, move, be provided with oil pocket in this footstock guide, in this oil pocket piston is set, between this piston upper end and the oil pocket inwall spring is set, the piston lower end connects piston rod; Be fixedly connected with the locking pressure plate that footstock guide and bed ways tightly can be locked together in the lower end of described piston rod, oil pocket links to each other with hydraulic control system by hydraulic oil pipe.Though this device can be with the tail stock for machine tool that moves to desired location by auto lock be at the bed piece guide rail quickly and easily, it can not regulate the pretightning force of tailstock to the clamping pretension of crankshaft workpiece.
Summary of the invention
The objective of the invention is, for the high accuracy crankshaft grinding machine clamping pretension conventional method that solves the machining crankshafts trunnion is regulated the problem that can not reach processing request, the present invention discloses a kind of method, can adjust the pressure of processed bent axle accurately, rightly, make bent axle under the effect of this pressure, be unlikely to produce moderate finite deformation, avoid the part processing distortion that causes contact rigidity variation to produce because of the pressure deficiency simultaneously again.
Technical scheme of the present invention is, one cover fluid pressure drive device is set on the crankshaft grinding machine tailstock, adopt hydraulic coupling to drive tailstock spindle, and the pressure that drives tailstock spindle detected, regulate charge oil pressure according to testing result, when reaching predefined force value, send instruction and stop to continue to strengthen charge oil pressure, and keep the constant of this pressure by accumulator.
Described hydraulic means is by being installed in tail-stock hydraulic-pressure oil cylinder, the main shaft connecting plate on the tailstock main body and comprising that the hydraulic oil supply system of Pressure gauge, three position four-way electromagnetic valve, pressure switch, overflow valve, variable pump and Oil pump electrical machinery is formed, main shaft connecting plate one end connects the piston rod of tail-stock hydraulic-pressure oil cylinder, and an end is connected on the tailstock spindle end face with bolting.
Fig. 1 is a schematic diagram of the present invention.
As can be seen from Figure 1, when work in magnetic valve 8 right sides, variable pump 6 is to the tail-stock hydraulic-pressure oil supply cylinder, under the effect of certain pressure oil, hydraulic cylinder piston rod promotes the main shaft connecting plate, stretch out outward thereby promote tailstock spindle, the tailstock center contact workpiece, this moment, tail-stock hydraulic-pressure cylinder load began to increase, system works pressure also increases thereupon, when reaching the setting pressure of pressure switch 3, magnetic valve 8 multiple metas make the tail-stock hydraulic-pressure oil cylinder working-pressure be kept under the effect of accumulator.The operating pressure of pressure switch can detect the back by Pressure gauge 2 and set.By the setup pressure value that accurate adjusting enters the lubricating oil of oil cylinder, just can accurately set the pressure of tailstock center.
The present invention's beneficial effect compared with the prior art is, the present invention increases by a cover hydraulic drive mechanism on the crankshaft grinding machine tailstock, adopt this device can accurately adjust the pressure of processed bent axle rightly, make bent axle under the effect of this pressure, be unlikely to produce moderate finite deformation, avoid the part processing distortion that causes contact rigidity variation to produce because of the pressure deficiency simultaneously again.
The present invention is applicable to crankshaft grinding machine or is similar to other lathes of crankshaft grinding machine work requirements.
Description of drawings
Fig. 1 is a principle of the invention schematic diagram;
Fig. 2 is the enforcement schematic diagram that the present invention is used to adjust crankshaft grinding machine tailstock pressure;
Picture in picture number expression: the 1st, the tail-stock hydraulic-pressure oil cylinder; The 2nd, Pressure gauge; The 3rd, pressure switch; The 4th, overflow valve; The 5th, the oil suction filter; The 6th, variable pump; The 7th, Oil pump electrical machinery; The 8th, three position four-way electromagnetic valve; The 9th, accumulator; The 12nd, advance/oil return opening; The 13rd, advance/oil return opening; The 14th, the main shaft connecting plate; The 15th, rear bearing; The 16th, tailstock spindle; The 17th, fore bearing; The 18th, tailstock center; The 19th, the tailstock main body.
The specific embodiment
The present invention specifically implements on the crankshaft grinding machine tailstock.As shown in Figure 2, among the figure: the 1st, the tail-stock hydraulic-pressure oil cylinder; The 12nd, advance/oil return opening; The 13rd, advance/oil return opening; The 14th, the main shaft connecting plate; The 15th, rear bearing; The 16th, tailstock spindle; The 17th, fore bearing; The 18th, tailstock center; The 19th, the tailstock main body.
The embodiment of the invention increases by a cover hydraulic means on the crankshaft grinding machine tailstock, this device is by being installed in tail-stock hydraulic-pressure oil cylinder 1, the main shaft connecting plate 14 on the tailstock main body 19 and comprising that the hydraulic oil supply system of Pressure gauge 2, pressure switch 3, overflow valve 4, variable pump 6, three position four-way electromagnetic valve 8 and Oil pump electrical machinery 7 is formed, main shaft connecting plate one end connects the piston rod of tail-stock hydraulic-pressure oil cylinder, and an end is connected on the tailstock spindle end face with bolting.
When three position four-way electromagnetic valve 8 work, variable pump 6 is to tail-stock hydraulic-pressure oil cylinder 1 fuel feeding, under the effect of certain pressure oil, hydraulic cylinder piston rod promotes main shaft connecting plate 14, and tailstock spindle 16 is stretched out outward, tailstock center 18 contact workpieces, this moment, tail-stock hydraulic-pressure oil cylinder 1 load began to increase, and system works pressure also increases thereupon, when reaching the setting pressure of pressure switch 3, three position four-way electromagnetic valve 8 multiple metas make the pressure of tail-stock hydraulic-pressure oil cylinder 1 be kept under the effect of accumulator 9.The operating pressure of pressure switch 3 can detect the back by Pressure gauge 2 and set.By the setup pressure value that accurate adjusting enters the lubricating oil of oil cylinder, just can accurately set the pressure of tailstock center.
Claims (2)
1. method of adjusting crankshaft grinding machine tailstock pressure, it is characterized in that, described method is provided with a cover hydraulic drive mechanism on the crankshaft grinding machine tailstock, adopt hydraulic coupling to drive tailstock spindle, and the pressure that drives tailstock spindle detected, regulate charge oil pressure according to testing result, when reaching predefined force value, send instruction and stop to continue to strengthen charge oil pressure, and keep the constant of this pressure by accumulator.
2. a kind of method of adjusting crankshaft grinding machine tailstock pressure according to claim 1, it is characterized in that, described hydraulic mechanism is by being installed in tail-stock hydraulic-pressure oil cylinder, the main shaft connecting plate on the tailstock main body and comprising that the hydraulic oil supply system of Pressure gauge, three position four-way electromagnetic valve, pressure switch, overflow valve, variable pump and Oil pump electrical machinery is formed, main shaft connecting plate one end connects the piston rod of tail-stock hydraulic-pressure oil cylinder, and an end is connected on the tailstock spindle end face with bolting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011100947991A CN102189448A (en) | 2011-04-15 | 2011-04-15 | Method for adjusting jacking force of tail bracket of crankshaft grinding machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011100947991A CN102189448A (en) | 2011-04-15 | 2011-04-15 | Method for adjusting jacking force of tail bracket of crankshaft grinding machine |
Publications (1)
| Publication Number | Publication Date |
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| CN102189448A true CN102189448A (en) | 2011-09-21 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011100947991A Pending CN102189448A (en) | 2011-04-15 | 2011-04-15 | Method for adjusting jacking force of tail bracket of crankshaft grinding machine |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104515714A (en) * | 2015-01-07 | 2015-04-15 | 北京林业大学 | High-speed high-temperature hydraulic load-adjustable knife-chip friction device and friction measuring method |
| CN104827877A (en) * | 2014-12-18 | 2015-08-12 | 北汽福田汽车股份有限公司 | Power assembly mounting system and vehicle |
| CN105196113A (en) * | 2015-10-27 | 2015-12-30 | 六安瑞普数控装备有限公司 | Heavy machine tool tailstock jacking force detection method |
| CN108115474A (en) * | 2017-12-20 | 2018-06-05 | 中建材衢州金格兰石英有限公司 | A kind of cylindrical grinder of quartz glass and its method is ground outside |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3232536A1 (en) * | 1982-09-01 | 1984-03-01 | Herion-Werke Kg, 7012 Fellbach | VALVE ARRANGEMENT FOR CONTROLLING AND MONITORING THE WORKING PRESSURE OF A CONSUMER |
| JPH06218605A (en) * | 1993-01-25 | 1994-08-09 | Okuma Mach Works Ltd | Tailstock with automatic retreat mechanism |
| US20030089176A1 (en) * | 2000-02-26 | 2003-05-15 | Rainer Drechsler | Pressure switch |
| CN101168236A (en) * | 2007-12-04 | 2008-04-30 | 北京第二机床厂有限公司 | Hydraulic pressure automatic axial direction positioning device |
| CN201572924U (en) * | 2009-12-15 | 2010-09-08 | 柳州市数控机床研究所 | Numerically controlled lathe hydraulic tailstock structure |
| CN201592259U (en) * | 2009-12-15 | 2010-09-29 | 大连机床集团有限责任公司 | Programmable hydraulic servo locking-type tailstock |
-
2011
- 2011-04-15 CN CN2011100947991A patent/CN102189448A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3232536A1 (en) * | 1982-09-01 | 1984-03-01 | Herion-Werke Kg, 7012 Fellbach | VALVE ARRANGEMENT FOR CONTROLLING AND MONITORING THE WORKING PRESSURE OF A CONSUMER |
| JPH06218605A (en) * | 1993-01-25 | 1994-08-09 | Okuma Mach Works Ltd | Tailstock with automatic retreat mechanism |
| US20030089176A1 (en) * | 2000-02-26 | 2003-05-15 | Rainer Drechsler | Pressure switch |
| CN101168236A (en) * | 2007-12-04 | 2008-04-30 | 北京第二机床厂有限公司 | Hydraulic pressure automatic axial direction positioning device |
| CN201572924U (en) * | 2009-12-15 | 2010-09-08 | 柳州市数控机床研究所 | Numerically controlled lathe hydraulic tailstock structure |
| CN201592259U (en) * | 2009-12-15 | 2010-09-29 | 大连机床集团有限责任公司 | Programmable hydraulic servo locking-type tailstock |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104827877A (en) * | 2014-12-18 | 2015-08-12 | 北汽福田汽车股份有限公司 | Power assembly mounting system and vehicle |
| CN104515714A (en) * | 2015-01-07 | 2015-04-15 | 北京林业大学 | High-speed high-temperature hydraulic load-adjustable knife-chip friction device and friction measuring method |
| CN105196113A (en) * | 2015-10-27 | 2015-12-30 | 六安瑞普数控装备有限公司 | Heavy machine tool tailstock jacking force detection method |
| CN108115474A (en) * | 2017-12-20 | 2018-06-05 | 中建材衢州金格兰石英有限公司 | A kind of cylindrical grinder of quartz glass and its method is ground outside |
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Application publication date: 20110921 |