CN208116925U - A kind of non-rigid tailstock pushing-tight device - Google Patents
A kind of non-rigid tailstock pushing-tight device Download PDFInfo
- Publication number
- CN208116925U CN208116925U CN201820606203.9U CN201820606203U CN208116925U CN 208116925 U CN208116925 U CN 208116925U CN 201820606203 U CN201820606203 U CN 201820606203U CN 208116925 U CN208116925 U CN 208116925U
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- tailstock
- screw rod
- barrel
- centre
- workpiece
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Abstract
The utility model relates to a kind of non-rigid tailstock pushing-tight devices, including tailstock cabinet, barrel of tail stock, tailstock centre, screw rod and feed screw nut, the barrel of tail stock is mounted in the tailstock cabinet, and it can be along the tailstock box body-sliding, screw hole and the taper hole for installing the tailstock centre are equipped in the barrel of tail stock, the feed screw nut is equipped with flange, the flange is connect by fastening bolt with the barrel of tail stock, spring is set in the fastening bolt, the tailstock cabinet is equipped with screw rod cover for seat, the screw rod is connect by bearing with the screw rod cover for seat, the screw rod rotates under power mechanism effect.The utility model structure is simple, top to have certain buffering with workpiece contact initial stage, facilitates top and workpiece centre to just, guarantees workpiece centering effect, to realize the automatic positioning of workpiece centre, while reducing workpiece damage, improve the machining accuracy of workpiece.
Description
Technical field
The utility model relates to a kind of non-rigid tailstock pushing-tight devices, belong to gear-hobbing machine technical field.
Background technique
In the hobbing process of chain digital control gear hobbing machine, in order to guarantee to process the precision of gear and the stationarity of gear engagement, no
Only to guarantee the hobboing cutter precision of gear-hobbing machine, it is also necessary to guarantee that accurate work piece positioning, the piece-holder of gear-hobbing machine are to pass through positioning
The spring chuck of workpiece one end and for the top tight workpiece other end jacking mechanism realize, it is desirable that the top contact work of jacking mechanism
The center of part, if there are errors for jacking mechanism top, centering is ineffective, just will have a direct impact on the machining accuracy of workpiece；It is existing
Holding device mostly be with the top center for going contact workpiece of larger power drive, not only there is center can not influence work to just
The machining accuracy of part, but also there is the risk to positive process defective work piece, seriously affect the processing quality of workpiece.
Utility model content
The utility model in view of the deficienciess of the prior art, provide that a kind of structure is simple, and centering process has certain buffering,
Facilitate center centering, the non-rigid tailstock pushing-tight device of centering better effect.
The technical solution that the utility model solves above-mentioned technical problem is as follows：A kind of non-rigid tailstock pushing-tight device, including
Tailstock cabinet, barrel of tail stock, tailstock centre, screw rod and feed screw nut, the barrel of tail stock are mounted in the tailstock cabinet, and
Screw hole and the taper hole for installing the tailstock centre, institute can be equipped with along the tailstock box body-sliding, the barrel of tail stock
Feed screw nut is stated equipped with flange, the flange is connect with the barrel of tail stock by fastening bolt, covered in the fastening bolt
Equipped with spring, the tailstock cabinet is equipped with screw rod cover for seat, and the screw rod is connect by bearing with the screw rod cover for seat, the silk
Bar rotates under power mechanism effect.
The utility model has the beneficial effects that：Screw rod rotation, feed screw nut move forward along screw rod, before driving barrel of tail stock
It moves, to drive the center of top contact workpiece, due to there is spring in fastening bolt, contact process workpiece can have centainly to top
Active force, top drive barrel of tail stock meeting compressed spring, therefore tailstock centre is pushed ahead with relatively slow power, tailstock in buffering course
Top and workpiece centre is to just, and then screw rod rotates, then with biggish power by tailstock centre top tight workpiece, whole process can be real
The automatic positioning of existing workpiece centre.It is directlyed adopt with tradition and allows top compared with workpiece directly contacts, the utility model more energetically
Structure is simple, top to have certain buffering with workpiece contact initial stage, facilitates top and workpiece centre to just, guarantee workpiece centering is imitated
Fruit to realize the automatic positioning of workpiece centre, while reducing workpiece damage, improves the machining accuracy of workpiece.
Based on the above technical solution, the utility model can also do following improvement.
Further, the screw rod is hollow structure.
Beneficial effect using above-mentioned further scheme is, when needing replacing tailstock centre, can directly adopt lance and wear
The through-hole crossed in screw rod hits the taper shank of tailstock centre, can quickly remove replacement tailstock centre.
Further, the outside of the screw rod cover for seat is equipped with end cap.
Beneficial effect using above-mentioned further scheme is to protect the intracorporal all parts of tailstock case, extending each component makes
Use the service life.
Further, thrust ball bearing and the locking screw for being limited to thrust ball bearing are additionally provided on the screw rod
It is female.
Beneficial effect using above-mentioned further scheme is that thrust ball bearing can bear axial thrust loads, locking nut
The stable position to bearing can be achieved, locking nut is arranged in end cap, while easy for assemble or unload, maintains easily.
Further, the rear portion of the tailstock centre is equipped with taper shank, and the taper shank is mounted in the taper hole.
Beneficial effect using above-mentioned further scheme is, by can be realized in taper shank inserting to taper hole tailstock centre with
The inserting of barrel of tail stock cooperates, and facilitates the installation of tailstock centre.
Further, the power mechanism includes servo motor and speed reducer, the servo motor by decelerating motor with
The screw rod connection.
Beneficial effect using above-mentioned further scheme is that servo motor directly drives hollow lead screw by deceleration, can be real
The automatic control of existing barrel of tail stock.
Further, the bearing uses tapered roller thrust bearing.
Beneficial effect using above-mentioned further scheme is can to bear the joint of radial load and axial load while effect
Load.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model；
In figure, 1, screw rod；2, feed screw nut；3, tailstock cabinet；4, barrel of tail stock；5, tailstock centre；6, fastening bolt；7,
Spring；8, screw rod cover for seat；9, bearing；10, thrust ball bearing；11, locking nut；12, end cap.
Specific embodiment
The principles of the present invention and feature are described below in conjunction with example, example is served only for explaining that this is practical
It is novel, it is not intended to limit the scope of the utility model.
As shown in Figure 1, a kind of non-rigid tailstock pushing-tight device, including tailstock cabinet 3, barrel of tail stock 4, tailstock centre 5, silk
Bar 1 and feed screw nut 2, the barrel of tail stock are mounted in the tailstock cabinet, and can be along the tailstock box body-sliding, the tail
Screw hole and the taper hole for installing the tailstock centre are equipped in cover for seat cylinder, the feed screw nut is equipped with flange, the method
Orchid is connect by fastening bolt 6 with the barrel of tail stock, and spring 7 is set in the fastening bolt, is set on the tailstock cabinet
There is screw rod cover for seat 8, the screw rod is connect by bearing 9 with the screw rod cover for seat, and screw rod rotates under power mechanism effect.
The screw rod is hollow structure.Hollow lead screw not only reduces energy consumption, but also when needing replacing tailstock centre, can be straight
The taper shank that the through-hole passed through in screw rod using lance hits tailstock centre is connect, replacement tailstock centre can be quickly removed.
The outside of the screw rod cover for seat is equipped with end cap 12.The intracorporal all parts of tailstock case are protected, extends each component and uses
Service life.
Thrust ball bearing 10 and the locking nut 11 for being limited to thrust ball bearing are additionally provided on the screw rod.It pushes away
Power ball bearing can bear axial thrust loads, and locking nut can realize the stable position to bearing, and locking nut is arranged in end cap
It is interior while easy for assemble or unload, it maintains easily.
The rear portion of the tailstock centre is equipped with taper shank, and the taper shank is mounted in taper hole.By in taper shank inserting to taper hole
The inserting that tailstock centre and barrel of tail stock can be realized cooperates, and facilitates the installation of tailstock centre.
The power mechanism includes servo motor and speed reducer, and the servo motor is connected by decelerating motor and the screw rod
It connects.Servo motor by slow down, directly drive hollow lead screw, it can be achieved that barrel of tail stock automatic control.
The bearing uses tapered roller thrust bearing.The joint that can bear radial load and axial load while effect is negative
Lotus.
Servo motor effect, screw rod rotation, drives feed screw nut to move forward along screw rod, and screw flange passes through spring for power
Barrel of tail stock is passed to, driving barrel of tail stock moves forward, in the top mohs tapered bore for being mounted on position sleeve, with barrel of tail stock
It is mobile and move, to drive the center of top contact workpiece, due to there is spring in fastening bolt, spring in top hold out against from it is slow
Punching effect, therefore contact process workpiece can have certain effect power, top drive barrel of tail stock meeting compressed spring, tailstock centre to top
It is pushed ahead with relatively slow power, tailstock centre and workpiece centre are to positive positioning in buffering course, then as the rotation of screw rod, then
Pass through tailstock centre top tight workpiece with biggish power；When removing tailstock centre, screw rod is rotated backward, and barrel of tail stock passes through fastening spiral shell
Bolt is connect with feed screw nut, and the effect of barrel of tail stock under tension drives tailstock centre to move back, impact of the tailstock centre by screw rod
Power, tailstock centre exit replaceable tailstock centre out of position sleeve.It, can also since the screw rod of the utility model is hollow structure
Tailstock centre is directly hit by lance.
The above is only the preferred embodiment of the present invention, is not intended to limit the utility model, all practical at this
Within novel spirit and principle, any modification, equivalent replacement, improvement and so on should be included in the guarantor of the utility model
Within the scope of shield.
Claims (7)
1. a kind of non-rigid tailstock pushing-tight device, which is characterized in that including tailstock cabinet, barrel of tail stock, tailstock centre, screw rod and
Feed screw nut, the barrel of tail stock are mounted in the tailstock cabinet, and can be along the tailstock box body-sliding, the barrel of tail stock
Interior to be equipped with screw hole and the taper hole for installing the tailstock centre, the feed screw nut passes through fastening bolt and the tailstock set
Cylinder connection, is set with spring in the fastening bolt, and the tailstock cabinet is equipped with screw rod cover for seat, the screw rod by bearing with
The screw rod cover for seat connection, the screw rod rotate under power mechanism effect.
2. holding device according to claim 1, which is characterized in that the screw rod is hollow structure.
3. holding device according to claim 1 or 2, which is characterized in that the outside of the screw rod cover for seat is equipped with end cap.
4. holding device according to claim 3, which is characterized in that be additionally provided with thrust ball bearing on the screw rod and be used for
The locking nut that thrust ball bearing is limited.
5. holding device according to claim 1, which is characterized in that the rear portion of the tailstock centre is equipped with taper shank, described
Taper shank is mounted in the taper hole.
6. holding device according to claim 1, which is characterized in that the power mechanism includes servo motor and deceleration
Machine, the servo motor are connect by decelerating motor with the screw rod.
7. holding device according to claim 1, which is characterized in that the bearing uses tapered roller thrust bearing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820606203.9U CN208116925U (en) | 2018-04-26 | 2018-04-26 | A kind of non-rigid tailstock pushing-tight device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820606203.9U CN208116925U (en) | 2018-04-26 | 2018-04-26 | A kind of non-rigid tailstock pushing-tight device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208116925U true CN208116925U (en) | 2018-11-20 |
Family
ID=64186704
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820606203.9U Active CN208116925U (en) | 2018-04-26 | 2018-04-26 | A kind of non-rigid tailstock pushing-tight device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208116925U (en) |
-
2018
- 2018-04-26 CN CN201820606203.9U patent/CN208116925U/en active Active
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