CN203900506U - Tensioning type lathe tailstock - Google Patents
Tensioning type lathe tailstock Download PDFInfo
- Publication number
- CN203900506U CN203900506U CN201420261692.0U CN201420261692U CN203900506U CN 203900506 U CN203900506 U CN 203900506U CN 201420261692 U CN201420261692 U CN 201420261692U CN 203900506 U CN203900506 U CN 203900506U
- Authority
- CN
- China
- Prior art keywords
- tailstock
- bearing
- tailstock cylinder
- main shaft
- tension
- 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.)
- Expired - Lifetime
Links
- 230000011218 segmentation Effects 0.000 claims description 3
- 238000003754 machining Methods 0.000 abstract description 8
- 238000012423 maintenance Methods 0.000 abstract description 4
- 238000004519 manufacturing process Methods 0.000 abstract 1
- 238000012545 processing Methods 0.000 description 3
- 238000005452 bending Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 238000011112 process operation Methods 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
Landscapes
- Turning (AREA)
Abstract
The utility model discloses a tensioning type lathe tailstock comprising a fixed seat fixedly connected on a lathe body. A slide seat is mounted on the fixed seat and matched with the same, a tailstock cylinder is fixedly connected at the top end of the slide seat, a spindle is inserted at a middle shaft of the tailstock cylinder, bearings sleeve two ends of the spindle, and the spindle is connected with the tailstock cylinder through the bearings; bearing bushes are fixedly connected with two ends of the tailstock cylinder, a chuck is mounted at the front end of the spindle, and a section of the rear end of the spindle extending out of the tailstock cylinder is provided with a thread and screwed with a locking nut through the thread. The tensioning type lathe tailstock has the advantages of few parts, simple structure, simplicity in maintenance or part replacement and the like, and production efficiency and machining precision are effectively improved.
Description
Technical field
The utility model relates to Machining Technology field, is specifically related to turning machine field, especially a kind of tension-type tail stock.
Background technology
The film forming system of shaft-like workpiece has lathe and grinding machine etc. conventionally, and lathe or grinding machine are to the general installation way that adopts folder one top of the processing of shaft-like workpiece, be that lathe or grinding machine rotary main shaft end pass through gripper chuck clamping of workpieces, the other end carries out pretension by the top tailstock of Morse's taper.In the trade union that adds for long-axle workpieces, there are some problems in this mode that holds out against, first be the bad control of pressure, dynamics is excessive easily by workpiece bending, especially the very little and shaft-like workpiece that length is very long of diameter, and cutter is generally to cut with radial load, more easily cause workpiece generation bent radial, cause workpiece to be scrapped or machining accuracy reduction; And dynamics is too small, workpiece is inaccurate in radial location, and workpiece is easily beated, reduce machining accuracy, and in process, because temperature raises, cause workpiece elongation cannot discharge and bend, and after processing, dimensional tolerance and the form and position tolerance of workpiece is not easy to guarantee.
In order to solve conventional lathe or grinding machine, adopt the existing problem of installation way on folder one top, the tailstock of at present existing new structure comes out, the patent document that is CN102000980A as publication No. just discloses machining tool under a kind of car mill composite articles tension, from the description of this document and as Fig. 1, 2 is known, in this scheme, relate to a kind of design of novel tailstock, this tailstock comprises hydraulic cylinder, bearing block, bearing, chuck seat and base, hydraulic cylinder is arranged on base, base has the bottom of matching with lathe guide rail face, in hydraulic cylinder, be provided with piston rod, the front end of hydraulic cylinder is stretched out in one end of piston rod, between piston rod and the inwall of hydraulic cylinder, be provided with the radial positioning device of piston rod, the external part of piston rod is provided with bearing block, bearing is installed on bearing block, chuck seat is installed on bearing, chuck for installing on chuck seat.This scheme adopts folder two workpiece fixed forms of drawing, and tailstock adopts chuck block workpiece tail end and stretch to the back-end, makes workpiece in extended state, can effectively avoid workpiece generation bent radial or distortion; But the parts that this scheme adopts are more, complicated structure, regular maintenance or part exchanging are more difficult, especially adopt the tension of hydraulic-driven workpiece, and piston rod packing in hydraulic system is had relatively high expectations, if accidentally fall into impurity, can cause piston rod to scratch, and the cost of replacing piston rod is higher; And chuck seat is by key and screw, to be connected to the front end of piston rod, and piston rod can not rotate, whole rotational support is only born by a YRT turntable bearing, the working strength of this bearing is increased, if be damaged, need the past degree to remove one by one part and just can complete with changing, whole Renewal process takes time and effort; In addition, whole clamping device parts are many, and weight is large, and all concentrates on the front end of piston rod, if do not use for a long time, easily bending phenomenon occurs for the less piston rod of diameter, has a strong impact on machining accuracy.
Utility model content
The utility model aims to provide a kind of tension-type tail stock, to solve, existing parts in prior art are many, complex structure, maintenance or part exchanging compared with difficult, easily bend and affect the problem of machining accuracy.
The utility model is achieved by following technical solution:
A kind of tension-type tail stock, comprise the holder being fixed on the body of lathe bed, the slide matching with it is installed on holder, described slide top is connected with tailstock cylinder, tailstock cylinder axis place is fitted with main shaft, and main shaft two ends are all socketed with bearing and are connected with tailstock cylinder by this bearing, and tailstock cylinder two ends are all connected with bearing holder (housing, cover), front-end of spindle is provided with chuck, and the segmentation that rear-end of spindle is stretched out tailstock cylinder is provided with screw thread and is connected with locking nut by this screw thread.
In described holder, be provided with screw mandrel, described slide bottom is provided with a projection, and this projection has the axial thread hole matching with screw mandrel and is socketed on leading screw, and leading screw one end is provided with screw mandrel drive mechanism.
Described leading screw driving mechanism is motor, handwheel or rocking bar.
Described bearing is radial thrust bearing.
The cone angle of described radial thrust bearing inwardly and be arranged symmetrically in tailstock cylinder two ends.
The beneficial effects of the utility model are:
Compared with prior art, the tension-type tail stock that the utility model provides, it has the following advantages:
1) chuck is fixed on rotating main shaft, and main shaft can together rotate with chuck, and rotate by bearings at main shaft two ends, and rotation and Stability Analysis of Structures, there will not be diastrophic situation, when can effectively promote machining accuracy, can also improve service life;
2) simple in structure, only by bearing holder (housing, cover) axial restraint bearing, can complete the maintenance of bearing and with changing, can significantly reduce hand labor intensity and save time by quick-detachment;
3) whole tailstock adopts screw mandrel to drive it to move axially, and compared to existing hydraulic-driven, has advantages of that variable is large, cost is low, easy care;
4) adopt radial thrust bearing fixed main shaft, the centripetal thrust force fixed main shaft producing by radial thrust bearing, have advantages of simple in structure, steadiness is strong.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model;
In figure: 1-tailstock cylinder, 2-bearing, 3-bearing (ball) cover, 4-main shaft, 5-chuck, 6-slide, 7-holder, 8-bed piece, 9-lock-nut, 10-projection, 11-screw mandrel drive mechanism, 12-leading screw.
The specific embodiment
Below in conjunction with accompanying drawing, the technical solution of the utility model is described further, but described in desired protection domain is not limited to;
As shown in Figure 1, the tension-type tail stock that the utility model provides, comprise the holder 7 being fixed on the body of lathe bed 8, the slide 6 matching with it is installed on holder 7, described slide 6 tops are connected with tailstock cylinder 1, tailstock cylinder 1 axis place is fitted with main shaft 4, main shaft 4 two ends are all socketed with bearing 2 and are connected with tailstock cylinder 1 by this bearing 2, tailstock cylinder 1 two ends are all connected with bearing holder (housing, cover) 3, main shaft 4 front ends are provided with chuck 5, and the segmentation that tailstock cylinder 1 is stretched out in main shaft 4 rear ends is provided with screw thread and is connected with locking nut 9 by this screw thread.
Reduce costs when promoting axial feeding, in described holder 7, be provided with screw mandrel 12, described slide 6 bottoms are provided with a projection 10, and this projection 10 has the axial thread hole matching with screw mandrel 11 and is socketed on leading screw 12, and leading screw 12 one end are provided with screw mandrel drive mechanism 11.
Described leading screw driving mechanism 11 is motor, handwheel or rocking bar, can select according to actual instructions for use, and can take into full account cost.
In order to guarantee the axial pre tightening force of main shaft 2, prevent that it from slip occurring and cause workpiece loosening, described bearing 2 is radial thrust bearing.
In order further to improve pretightning force, the cone angle of described radial thrust bearing inwardly and be arranged symmetrically in tailstock cylinder 1 two ends.
During clamping workpiece, one end clamping of the long-axle workpieces of first needs being processed is in the chuck (not shown) of lathe rotating shaft, the other end is by chuck 5 clampings in the utility model, then the screw mandrel drive mechanism 11 of making by motor, handwheel or rocking bar etc. rotates leading screw 12, rotation by screw mandrel 12 drives the projection 10 of slide 6 bottoms that axial displacement occurs, be that projection 10 drives slide 6 to move to the direction away from lathe rotating shaft, realize the tension of workpiece, now, again by locking nut 9 fine settings of main shaft 4 ends, guarantee axial precision; Start lathe rotating shaft, rotating shaft drives workpiece rotation, and main shaft 4 is in company with rotating, and rotational support completes by the radial thrust bearing at main shaft 4 two ends, so main shaft 4 just can realize the rotating speed of synchronizeing with machine tool chief axis under very little External Force Acting, can carry out turning processing.
After radial thrust bearing is damaged, left end dismantles successively locking nut 9 and bearing cap 3 is replaceable type bearing 2, and right-hand member dismantles successively chuck 5 and bearing cap 3 is replaceable, and the process operation of whole dismounting and replacing is easy, operation is few, can save a large amount of manpowers and time.
Claims (5)
1. a tension-type tail stock, comprise the holder (7) being fixed on the body of lathe bed (8), the slide (6) matching with it is installed on holder (7), it is characterized in that: described slide (6) top is connected with tailstock cylinder (1), tailstock cylinder (1) axis place is fitted with main shaft (4), main shaft (4) two ends are all socketed with bearing (2) and are connected with tailstock cylinder (1) by this bearing (2), tailstock cylinder (1) two ends are all connected with bearing holder (housing, cover) (3), main shaft (4) front end is provided with chuck (5), the segmentation that tailstock cylinder (1) is stretched out in main shaft (4) rear end is provided with screw thread and is connected with locking nut (9) by this screw thread.
2. tension-type tail stock according to claim 1, it is characterized in that: in described holder (7), be provided with screw mandrel (12), described slide (6) bottom is provided with a projection (10), this projection (10) has the axial thread hole matching with screw mandrel (11) and is socketed in leading screw (12) upper, and leading screw (12) one end is provided with screw mandrel drive mechanism (11).
3. tension-type tail stock according to claim 2, is characterized in that: described leading screw driving mechanism (11) is motor, handwheel or rocking bar.
4. tension-type tail stock according to claim 1, is characterized in that: described bearing (2) is radial thrust bearing.
5. tension-type tail stock according to claim 4, is characterized in that: the cone angle of described radial thrust bearing inwardly and be arranged symmetrically in tailstock cylinder (1) two ends.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420261692.0U CN203900506U (en) | 2014-05-21 | 2014-05-21 | Tensioning type lathe tailstock |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420261692.0U CN203900506U (en) | 2014-05-21 | 2014-05-21 | Tensioning type lathe tailstock |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203900506U true CN203900506U (en) | 2014-10-29 |
Family
ID=51774797
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420261692.0U Expired - Lifetime CN203900506U (en) | 2014-05-21 | 2014-05-21 | Tensioning type lathe tailstock |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203900506U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106053039A (en) * | 2016-06-12 | 2016-10-26 | 河海大学常州校区 | Damper testbed motor-driven tailstock |
| CN106975956A (en) * | 2017-04-19 | 2017-07-25 | 成都飞机工业（集团）有限责任公司 | A kind of method for turning round jig and clamping workpiece |
| CN109332734A (en) * | 2018-11-20 | 2019-02-15 | 宁夏贺兰县机床附件厂 | A kind of end face hydraulic automatic driver plate with the utilization rate for improving material |
| CN114473179A (en) * | 2022-03-11 | 2022-05-13 | 哈尔滨焊接研究院有限公司 | Friction welding machine |
-
2014
- 2014-05-21 CN CN201420261692.0U patent/CN203900506U/en not_active Expired - Lifetime
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106053039A (en) * | 2016-06-12 | 2016-10-26 | 河海大学常州校区 | Damper testbed motor-driven tailstock |
| CN106053039B (en) * | 2016-06-12 | 2019-03-15 | 河海大学常州校区 | A kind of electronic tailstock of Damper Test platform |
| CN106975956A (en) * | 2017-04-19 | 2017-07-25 | 成都飞机工业（集团）有限责任公司 | A kind of method for turning round jig and clamping workpiece |
| CN106975956B (en) * | 2017-04-19 | 2018-11-02 | 成都飞机工业（集团）有限责任公司 | A method of revolution jig and clamping workpiece |
| CN109332734A (en) * | 2018-11-20 | 2019-02-15 | 宁夏贺兰县机床附件厂 | A kind of end face hydraulic automatic driver plate with the utilization rate for improving material |
| CN114473179A (en) * | 2022-03-11 | 2022-05-13 | 哈尔滨焊接研究院有限公司 | Friction welding machine |
| CN114473179B (en) * | 2022-03-11 | 2024-02-09 | 中国机械总院集团哈尔滨焊接研究所有限公司 | Friction welding machine |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN206883337U (en) | Numerical control external cylindrical grinding machine | |
| CN203900506U (en) | Tensioning type lathe tailstock | |
| CN102000980A (en) | Machine tool for grinding composite workpiece under tensioning state | |
| CN202479899U (en) | Lathe based grinding machining apparatus for long-wheelbase non-ferrous metal stirring shaft | |
| CN201128016Y (en) | Device for processing crankshaft crank | |
| CN204725260U (en) | A kind of deep hole grinder | |
| CN101066581A (en) | Plain grinding machine | |
| CN201442104U (en) | Device for improving machining rigidity and machining precision of shafts and tubes | |
| CN201147891Y (en) | Highly effective clamping structure for round orifice on grinding steel ball | |
| CN203019203U (en) | Aluminous strong honing head | |
| CN203003649U (en) | Device for grinding end faces of spindles, taper holes and tip on line | |
| CN202479905U (en) | Crankshaft grinder | |
| CN101927374A (en) | Shaft-like rotary workpiece static external round machining machine tool | |
| CN201684936U (en) | Tailored reverse turning tool | |
| CN204711219U (en) | A kind of double-headstock numerically controlled lathe adjustable blade holders | |
| CN208289006U (en) | Tailstock after a kind of unilateral of large span machine tool body | |
| CN203725816U (en) | Machining device for inner hole of shaft type workpiece | |
| CN202192437U (en) | Center frame of machining cutting machine tool | |
| CN206425565U (en) | A kind of combination knife bar for slender axles accessory turning | |
| CN203265682U (en) | Boring mill for boring ball arced face | |
| CN202462134U (en) | Spindle sharpening machine for lathe | |
| CN205599933U (en) | OK a karaoke club instrument of turning slender axles on lathe | |
| CN201183148Y (en) | Cyclone mill for processing internal and external screw threads | |
| CN104708048A (en) | Expansion core fastening device for turning outer circles of large pipes | |
| CN202922390U (en) | Long stroke tailstock for cylindrical grinder |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20141029 |