CN101920346A - Heavy machine tool tailstock driving device - Google Patents
Heavy machine tool tailstock driving device Download PDFInfo
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- CN101920346A CN101920346A CN 201010287970 CN201010287970A CN101920346A CN 101920346 A CN101920346 A CN 101920346A CN 201010287970 CN201010287970 CN 201010287970 CN 201010287970 A CN201010287970 A CN 201010287970A CN 101920346 A CN101920346 A CN 101920346A
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- machine tool
- alternating current
- worm shaft
- main drive
- transition
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Abstract
The invention belongs to the technical field of mechanical engineering, in particular to a heavy machine tool tailstock driving device which comprises an alternating current machine with a reducer casing, a main drive gear shaft, a transition axis, a transition gear, a worm shaft, a warm female strip, a radial bearing and a thrust bearing, wherein the alternating current machine with the reducer casting drives the main drive gear shaft to rotate; the rotation movement is transferred to the worm shaft through the transition gear; and the worm shaft is meshed with the worm female strip which is provided with trapezoidal thread to convert the rotation movement into liner movement so as to realize the driving of the heavy machine tool tailstock. The invention has compact structure, can realize the high-precision and stable driving of the heavy machine tool tailstock, and can still realize the safe and reliable self-lock under the action of large ejection force at the same time.
Description
Technical field
The invention belongs to mechanical engineering technical field, be specifically related to a kind of heavy machine tool tailstock driving device.
Background technology
In recent years, develop rapidly along with weight equipment is manufacturing, various heavy machine tools are obvious day by day in the important function in extremely manufacturing field.For heavy machine tool, the high accuracy of tailstock drives and reliable self-locking is a very crucial problem, directly has influence on the machining accuracy and the job security of lathe.Therefore, the tail stock for machine tool of design one cover high accuracy high reliability drives self-locking device becomes indispensable necessary link in the heavy machine tool design.
At present, the driving feeding of heavy machine tool tailstock and lock-bit majority drive by separate type and positioner is realized jointly, promptly realize to drive feeding by a cover motor driving device, be fed into ad-hoc location after, again by a cover manual positioning device with the tailstock stationary positioned.Since heavy machine tool vertically move that component weight is big, inertia is big, therefore manual positioning waste time and energy and accurate positioning not high.
At above present situation, be badly in need of a kind of compact conformation of development, transmission accuracy is high and can realizes that the heavy machine tool tailstock of reliable self-locking drives and self-locking device.
Summary of the invention
The objective of the invention is to overcome the deficiencies in the prior art, a kind of heavy machine tool tailstock driving device is provided, can realize that high accuracy drives feeding, can realize reliable self-locking again.
Heavy machine tool tailstock driving device provided by the invention comprises: alternating current generator, main drive gear axle, transition axis, transition gear, worm shaft, snail master bar, journal bearing, thrust bearing.Wherein:
Described alternating current generator has reduction box, and this alternating current generator is by being bolted on the tailstock body shell; Described main drive gear axle is fixed in the tailstock body shell by the journal bearing at its both ends, and main drive gear axle and the coaxial installation of alternating current generator, directly drives rotation by alternating current generator; Described transition axis is fixed on the tailstock body shell by screw, and described transition gear is installed on the transition axis by two journal bearings, and the gears engaged of described transition gear and main drive gear axle;
Described snail master bar is fixed on the machine tool guideway; The two ends of described worm shaft are installed in the tailstock body shell by thrust bearing and journal bearing respectively, and an end and the middle part of described worm shaft are provided with the gear teeth, the gear teeth of an end and the engagement of described transition gear, the gear teeth at middle part and the engagement of described snail master bar.
Among the present invention, described snail master bar is provided with trapezoidal thread, so that realize self-locking during with the gear teeth meshing transmission at worm shaft middle part.
The present invention compared with prior art has the following advantages: multilevel gear drive mechanism directly placed in the tailstock body shell, need not to be provided with gear-box, so compact conformation, and improved the rigidity of installing; Adopt the transmission of worm screw snail master bar, and thrust bearing is set respectively, therefore can bear big axial force, be applicable to the accurate transmission of heavy load in the worm shaft both sides; Snail master bar length can extend according to actual needs, therefore is applicable to long stroke transmission; Owing on the snail master bar, be provided with the trapezoidal thread of self-locking conditions satisfied, make device can realize safe and reliable self-locking.
Description of drawings
Fig. 1 is a structural representation of the present invention.
Fig. 2 is a mounting structure schematic diagram of the present invention.
Number in the figure: 1 is alternating current generator, and 2 is bolt, and 3 is the main drive gear axle, 4 is transition gear, and 5 is journal bearing, and 6 is the tailstock body shell, 7 is journal bearing, and 8 is worm shaft, and 9 is thrust bearing, 10 is journal bearing, 11 is transition axis, and 12 is screw, and 13 is journal bearing, 14 is the snail master bar, and 15 is machine tool guideway.
The specific embodiment
Below in conjunction with accompanying drawing embodiments of the invention are elaborated: present embodiment is to implement under the prerequisite in technical solution of the present invention.
As depicted in figs. 1 and 2, present embodiment comprises: the alternating current generator 1 of band reduction box, bolt 2, main drive gear axle 3, transition gear 4, tailstock body shell 6, worm shaft 8, thrust bearing 9, transition axis 11, screw 12, snail master bar 14, journal bearing 5,7,10,13, machine tool guideway 15 are formed.
The present embodiment embodiment is as follows:
The alternating current generator 1 of band reduction box is fixed on the tailstock body shell 6 by bolt 2, main drive gear axle 3 is installed in the tailstock body shell 6 by journal bearing 5 and 13, main drive gear axle 3 directly drives rotation by the alternating current generator 1 of band reduction box, main drive gear axle 3 is by meshing with transition gear 4, to rotatablely move and be delivered to transition gear 4, transition gear 4 is installed on the transition axis 11 by two journal bearings 10, and transition axis 11 is fixedly connected by screw 12 and tailstock body shell 6.Transition gear 4 simultaneously with the gear teeth meshing of worm shaft 8 one ends, to rotatablely move and continue to be passed to worm shaft 8, the two ends of worm shaft 8 are installed in the tailstock body shell 6 by journal bearing 7 and thrust bearing 9 respectively, the gear teeth at worm shaft 8 middle parts and snail master bar 14 engagements that are fixed on the machine tool guideway 15, to rotatablely move and be converted to rectilinear motion, move along guide rail 15 thereby drive tailstock body shell 6 and load, finish smooth drive tailstock.After tailstock moves to ad-hoc location,, therefore can realize tailstock body shell 6 and load on accurate location on the machine tool guideway 15 because worm shaft 8-snail master bar 14 transmissions are arranged to have auto-lock function.Because worm shaft 8 two ends all are provided with thrust bearing 9, therefore, big axial force can be born after this device self-locking again, promptly under big bearing force effect, still safe and reliable self-locking can be realized.
Claims (2)
1. a heavy machine tool tailstock driving device is characterized in that comprising: alternating current generator, main drive gear axle, transition axis, transition gear, worm shaft, snail master bar, journal bearing, thrust bearing;
Wherein: described alternating current generator has reduction box, and this alternating current generator is by being bolted on the tailstock body shell; Described main drive gear axle is fixed in the tailstock body shell by the journal bearing at its both ends, and main drive gear axle and the coaxial installation of alternating current generator, directly drives rotation by alternating current generator; Described transition axis is fixed on the tailstock body shell by screw, and described transition gear is installed on the transition axis by two journal bearings, and the gears engaged of described transition gear and main drive gear axle; Described snail master bar is fixed on the machine tool guideway; The two ends of described worm shaft are installed in the tailstock body shell by thrust bearing and journal bearing respectively, and an end and the middle part of described worm shaft are provided with the gear teeth, the gear teeth of an end and the engagement of described transition gear, the gear teeth at middle part and the engagement of described snail master bar.
2. heavy machine tool tailstock driving device according to claim 1 is characterized in that realizing when described snail master bar is provided with gear teeth meshing transmission with worm shaft middle part the trapezoidal thread of self-locking.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010287970 CN101920346B (en) | 2010-09-21 | 2010-09-21 | Heavy machine tool tailstock driving device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010287970 CN101920346B (en) | 2010-09-21 | 2010-09-21 | Heavy machine tool tailstock driving device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101920346A true CN101920346A (en) | 2010-12-22 |
| CN101920346B CN101920346B (en) | 2012-03-21 |
Family
ID=43335702
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201010287970 Expired - Fee Related CN101920346B (en) | 2010-09-21 | 2010-09-21 | Heavy machine tool tailstock driving device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101920346B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103639815A (en) * | 2013-11-20 | 2014-03-19 | 苏州蓝王机床工具科技有限公司 | Driving and self-locking device for tailstock of heavy-duty machine tool |
| CN111496464A (en) * | 2020-04-29 | 2020-08-07 | 常州机电职业技术学院 | Repairing method suitable for worm and worm mother strip pair of heavy machine tool |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3127130A1 (en) * | 1981-07-09 | 1983-01-27 | Volkswagenwerk Ag, 3180 Wolfsburg | "METHOD FOR CHANGING THE WORKPIECE IN CHIPING HIGH-SPEED MACHINING MACHINES AND CHIPING MACHINE FOR CARRYING OUT THE METHOD" |
| CN86206879U (en) * | 1986-09-15 | 1987-08-19 | 地质矿产部探矿工程研究所 | Diamond piercer for construction engineering |
| CN201304496Y (en) * | 2008-12-07 | 2009-09-09 | 青海华鼎重型机床有限责任公司 | Longitudinally driven positioning device at a tailstock of a heavy-duty horizontal lathe |
-
2010
- 2010-09-21 CN CN 201010287970 patent/CN101920346B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3127130A1 (en) * | 1981-07-09 | 1983-01-27 | Volkswagenwerk Ag, 3180 Wolfsburg | "METHOD FOR CHANGING THE WORKPIECE IN CHIPING HIGH-SPEED MACHINING MACHINES AND CHIPING MACHINE FOR CARRYING OUT THE METHOD" |
| CN86206879U (en) * | 1986-09-15 | 1987-08-19 | 地质矿产部探矿工程研究所 | Diamond piercer for construction engineering |
| CN201304496Y (en) * | 2008-12-07 | 2009-09-09 | 青海华鼎重型机床有限责任公司 | Longitudinally driven positioning device at a tailstock of a heavy-duty horizontal lathe |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103639815A (en) * | 2013-11-20 | 2014-03-19 | 苏州蓝王机床工具科技有限公司 | Driving and self-locking device for tailstock of heavy-duty machine tool |
| CN111496464A (en) * | 2020-04-29 | 2020-08-07 | 常州机电职业技术学院 | Repairing method suitable for worm and worm mother strip pair of heavy machine tool |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101920346B (en) | 2012-03-21 |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120321 Termination date: 20190921 |