CN207026501U - A kind of pre-tightening force adjusting device and the tailstock tool containing it - Google Patents
A kind of pre-tightening force adjusting device and the tailstock tool containing it Download PDFInfo
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- CN207026501U CN207026501U CN201720997316.1U CN201720997316U CN207026501U CN 207026501 U CN207026501 U CN 207026501U CN 201720997316 U CN201720997316 U CN 201720997316U CN 207026501 U CN207026501 U CN 207026501U
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- end cap
- power transmission
- transmission shaft
- tightening force
- adjusting device
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Abstract
A kind of pre-tightening force adjusting device is the utility model is related to, pre-tightening force adjusting device includes end cap, adjusting bracket, adjusting nut, adjustment axis, ball, spring, and one end of adjustment axis is connected with one end of end cap, and adjusting bracket is enclosed in adjustment axis；Adjusting nut is arranged in side of the adjusting bracket away from end cap, and adjusting nut is threadedly coupled with adjustment axis；End cap is provided with rail groove, is provided with ball screens in rail groove, spring is arranged between rail groove and adjusting bracket, and ball is movably arranged between rail groove and spring.A kind of tailstock tool, including tailstock body, sliding sleeve, top, power transmission shaft, reduction box, motor, control cabinet and pre-tightening force adjusting device.The beneficial effects of the utility model are：The regulation of pretightning force can be carried out, avoids workpiece dieback or insufficient clamping force the situation of security incident, protects lathe, extends the service life of lathe.
Description
Technical field
It the utility model is related to machining apparatus field, more particularly to a kind of pre-tightening force adjusting device and the lathe tail containing it
Seat.
Background technology
Existing horizontal lathe tailstock power transmission shaft rear portion is provided with handwheel, stretches out or exit tailstock set by shaking handwheel
Cylinder, the time is expended, and often shake handwheel to accelerate the abrasion of power transmission shaft upper trapezoid screw thread, influence the service precision of tailstock.Separately
On the one hand, when with top clamping workpiece, it is necessary to manpower is held out against to tailstock, pretightning force can not effectively be controlled.Though existing have liquid
Cylinder pressure holds out against tailstock as power, but on the one hand can not adjust pretightning force easily causes processing part to the hydraulic cylinder used at present
Scrap, another aspect hydraulic unit cost is higher, the high of maintenance cost
Utility model content
Technical problem to be solved in the utility model is to provide a kind of pre-tightening force adjusting device and the tailstock tool containing it,
To overcome above-mentioned deficiency of the prior art.
The technical scheme that the utility model solves above-mentioned technical problem is as follows：A kind of pre-tightening force adjusting device, pretightning force are adjusted
Regulating device includes end cap, adjusting bracket, adjusting nut, adjustment axis, ball, spring, one end of adjustment axis and one end phase of end cap
Connection, adjusting bracket are enclosed in adjustment axis；Adjusting nut is arranged in side of the adjusting bracket away from end cap, and adjusting nut and tune
Nodal axisn is threadedly coupled；End cap is provided with rail groove, is provided with ball screens in rail groove, spring is arranged on rail groove and adjusting bracket
Between, ball is movably arranged between rail groove and spring.
The beneficial effects of the utility model are：The regulation of pretightning force can be carried out, is avoided workpiece dieback or insufficient clamping force
Go out the situation of security incident, protect lathe, extend the service life of lathe.
On the basis of above-mentioned technical proposal, the utility model can also do following improvement.
Further, it is equipped with the mounting hole for accommodating spring in the position of each ball screens institute face on end cap.
Further, end cap includes left end cap, right end cap, and rail groove is arranged on the right side of left end cap, and mounting hole opens up
On right end cap, mounting hole is simultaneously through the end face of left and right two of right end cap；The right-hand member of left end cap is connected with the left end of right end cap
Connect, adjustment axis is connected with the centre of gyration of the right side of right end cap.
Further, rail groove is in annular shape.
Further, adjusting bracket is provided with precompressed draft control lever, and one end of precompressed draft control lever is extend into mounting hole, and
It is inconsistent with spring.
Further, the quantity of spring is 1-6, and ball, the quantity of ball screens are corresponding equal with the quantity of spring.
The technical scheme that the present invention solves above-mentioned technical problem is as follows：A kind of tailstock tool, including tailstock body, slip cap
Cylinder, top, power transmission shaft, reduction box, motor, control cabinet and pre-tightening force adjusting device, sliding sleeve are slidably arranged in tailstock body,
One end of sliding sleeve sets top, the other end setting power transmission shaft of sliding sleeve, power transmission shaft and sliding sleeve screw-driven company
Connect, the one end of power transmission shaft away from sliding sleeve is connected with the output end of reduction box, the both ends of pre-tightening force adjusting device respectively with
The input of reduction box, the output end of motor are connected, and control cabinet electrically connects with motor.
Further, it is provided with inner thread sleeve in sliding sleeve, power transmission shaft is provided with trapezoidal thread, the trapezoidal spiral shell on power transmission shaft
Line mutually screws with inner thread sleeve.
It is using above-mentioned further beneficial effect：
1), directly can be reequiped on existing tailstock tool, repacking cost is relatively low；
2) time saving and energy saving, by tailstock tool of the present utility model in top tight workpiece on lathe, operating efficiency is high；
3) the fast automatic stretching of barrel of tail stock, can be achieved with retracting, pass through the adjusting nut on pre-tightening force adjusting device
Pretightning force during controllable tailstock tool top tight workpiece, avoid workpiece dieback or insufficient clamping force the situation of security incident,
Lathe is protected, extends the service life of lathe.
The technical scheme that the present invention solves above-mentioned technical problem is as follows：A kind of tailstock tool, including tailstock body, slip cap
Cylinder, top, power transmission shaft, reduction box, motor, control cabinet and pre-tightening force adjusting device, sliding sleeve are slidably arranged in tailstock body,
One end of sliding sleeve sets top, the other end setting power transmission shaft of sliding sleeve, power transmission shaft and sliding sleeve screw-driven company
Connect, the output end of the both ends of pre-tightening force adjusting device respectively with the one end of power transmission shaft away from sliding sleeve, reduction box is connected, electricity
The output end of machine is connected with the input of reduction box, and control cabinet electrically connects with motor.
Further, it is provided with inner thread sleeve in sliding sleeve, power transmission shaft is provided with trapezoidal thread, the trapezoidal spiral shell on power transmission shaft
Line mutually screws with inner thread sleeve.
It is using above-mentioned further beneficial effect：
1), directly can be reequiped on existing tailstock tool, repacking cost is relatively low；
2) time saving and energy saving, by tailstock tool of the present utility model in top tight workpiece on lathe, operating efficiency is high；
3) the fast automatic stretching of barrel of tail stock, can be achieved with retracting, pass through the adjusting nut on pre-tightening force adjusting device
Pretightning force during controllable tailstock tool top tight workpiece, avoid workpiece dieback or insufficient clamping force the situation of security incident,
Lathe is protected, extends the service life of lathe.
Brief description of the drawings
Fig. 1 is the structural representation of pre-tightening force adjusting device described in the utility model；
Fig. 2 is Fig. 1 A-A to sectional drawing；
Fig. 3 is Fig. 1 B-B direction sectional drawing；
Fig. 4 is the structural representation of tailstock tool.
In accompanying drawing, the list of parts representated by each label is as follows：
1st, pre-tightening force adjusting device, 110, end cap, 111, left end cap, 1111, rail groove, 1112, ball screens, 112, right
End cap, 1121, mounting hole, 120, adjusting bracket, 121, precompressed draft control lever, 130, adjusting nut, 140, adjustment axis, 150, rolling
Pearl, 160, spring, 2, tailstock body, 3, sliding sleeve, 310, inner thread sleeve, 4, top, 5, power transmission shaft, 6, reduction box, 7, electricity
Machine, 8, control cabinet, 9, locking device, 10, bearing, 11, travel limit screw, 12, sliding bearing.
Embodiment
Principle of the present utility model and feature are described below in conjunction with accompanying drawing, example is served only for explaining this practicality
It is new, it is not intended to limit the scope of the utility model.
As shown in Figure 1, Figure 2, Figure 3 shows, a kind of pre-tightening force adjusting device, pre-tightening force adjusting device 1 include end cap 110, regulation
Support 120, adjusting nut 130, adjustment axis 140, ball 150, spring 160.
The left end of adjustment axis 140 is connected with one end of end cap 110, and the activity of adjusting bracket 120 is enclosed on adjustment axis 140
On, adjusting nut 130 is arranged in side of the adjusting bracket 120 away from end cap 110, and adjusting nut 130 and the screw thread of adjustment axis 140
Connection, can the close and remote end cap 110 of adjusting bracket 120 by turn adjusting nut 130.End cap 110 is provided with track
Groove 1111, rail groove 1111 is interior to be provided with ball screens 1112, and spring 160 is arranged between rail groove 1111 and adjusting bracket 120,
Ball 150 is movably arranged between rail groove 1111 and spring 160, and the both ends of spring 160 push against ball 150 and regulation respectively
Support 120.
On end cap 110 mounting hole for accommodating spring 160 is equipped with the position of each 1112 faces of ball screens
1121。
The concrete structure of end cap 110 is as follows：
End cap 110 includes left end cap 111, right end cap 112, wherein, the radial cross-sectional shape of left end cap 111 is circle.
Rail groove 1111 is arranged on the right side of left end cap 111, and mounting hole 1121 is opened on right end cap 112, mounting hole 1121
Left end runs through the left side of right end cap 112, and the right-hand member of mounting hole 1121 runs through the right side of right end cap 112.The right side of left end cap 111
End is connected with the left end of right end cap 112, and adjustment axis 140 is connected with the centre of gyration of the right side of right end cap 112.In this reality
Apply in example, rail groove 1111 is in annular shape.
In addition, the quantity of spring 160 is 1-6, and concretely 1,2,3,4,5,6, when the quantity of spring 160 is 6
When, the quantity 6 of ball 150, the quantity of ball screens 1112 is now also just equal with the quantity of ball 150, mounting hole 1121
Quantity it is now also just equal with the quantity of spring 160.
Adjusting bracket 120 is provided with precompressed draft control lever 121, and one end of precompressed draft control lever 121 extend into mounting hole
In 1121, and it is inconsistent with spring 160, and the quantity of precompressed draft control lever 121 can be equal with the quantity of spring 160；Can also
Be no matter spring 160 how many, and the quantity of precompressed draft control lever 121 is always one, and in the present embodiment, precompression is adjusted
The quantity of pole 121 is equal with the quantity of spring 160, corresponding to each precompressed draft control lever 121 with a phase of spring 160
Match somebody with somebody, circumference of the precompressed draft control lever 121 close to one end of spring 160 faces out projection, shape annulus, the diameter of annulus preferably with
The external diameter of spring 160 is equal or is slightly larger than.
The operation principle of pre-tightening force adjusting device 1：By turning adjusting nut 130, adjusting nut 130 is allowed to promote regulation branch
The pressure of spring 160 is adjusted frame 120, and when tightening adjusting nut 130, the spring 160 in mounting hole 1121 will cause to roll
Pressure increase on pearl 150, ball 150 departs from pretightning force increase required during ball screens 1112, otherwise reduces.Work as ball
150 when turning again to ball screens 1112 on rail groove 1111, can send kaka sound, prompts pretightning force to reach setting value.
Embodiment one：As shown in figure 4, a kind of tailstock tool, including tailstock body 2, sliding sleeve 3, top 4, power transmission shaft 5,
Reduction box 6, motor 7, control cabinet 8, locking device 9, bearing 10, sliding bearing 12 and pre-tightening force adjusting device 1.
Tailstock body 2 is provided with the through hole of both ends open, and sliding sleeve 3 is slidably arranged in the through hole of tailstock body 2, slip cap
The left end of cylinder 3 sets top 4, and the right-hand member of sliding sleeve 3 sets power transmission shaft 5, in addition, being provided with interior spiral shell in the right-hand member of sliding sleeve 3
Line sleeve 310, the left end of power transmission shaft 5 are provided with trapezoidal thread, the trapezoidal thread on power transmission shaft 5 and the interior spiral shell in sliding sleeve 3
The screw-driven of line sleeve 310 connects, and the right-hand member of power transmission shaft 5 is connected with the output end of reduction box 6, and reduction box 6 is The gear deceleration
Case.Locking device 9 is arranged on tailstock body 2, and locking device 9 is used to be moved to after correct position to enter it by sliding sleeve 3
Row locking, prevents sliding sleeve 3 from loosening.Sliding bearing 12 is arranged in tailstock body 2, and sliding bearing 12 is enclosed on power transmission shaft 5.
The input with reduction box 6, the output end of motor 7 are connected respectively at the both ends of pre-tightening force adjusting device 1, now,
Two ways be present in the connection of pre-tightening force adjusting device 1 and reduction box 6, motor 7：Left end in one, pre-tightening force adjusting device 1
The centre of gyration of lid 111 is connected with the input of reduction box 6, the centre of gyration of the adjustment axis 140 in pre-tightening force adjusting device 1
It is connected with the output end of motor 7；Or the centre of gyration of the left end cap 111 in pre-tightening force adjusting device 1 and motor 7 is defeated
Go out end to be connected, the centre of gyration of the adjustment axis 140 in pre-tightening force adjusting device 1 is connected with the input of reduction box 6.Bearing
10 are used for fixed preload adjusting means 1.Control cabinet 8 electrically connects with motor 7, and motor 7 is using dextrorotation stepper motor, control
Case 8 is provided with for ' entering ', ' moving back ', ' stopping ' switch, in the present embodiment, pre-tightening force adjusting device 1, reduction box 6, motor 7
It is preferably disposed on inside control cabinet 8.
In ' entering ' switch on by control cabinet 8, motor 7 rotates, and is then incited somebody to action by reduction box 6, pre-tightening force adjusting device 1
Power passes to power transmission shaft 5, and power transmission shaft 5 passes through the threaded connection with inner thread sleeve 310 so that sliding sleeve 3 is towards away from biography
Moving axis 5 direction movement, so as to allow it is top 4 stretch out, that is, realize into operation, likewise, by ' moving back ' switch when, motor 7
Direction of rotation when direction of rotation by ' entering ' just with being switched on the contrary, can realize the operation moved back.
In addition, it is stuck in tailstock body 2 during in order to prevent 3 limit of sports record position of sliding sleeve, in sliding sleeve 3 and tailstock
Travel limit screw 11 is provided between body 2.
Embodiment two：A kind of tailstock tool, including tailstock body 2, sliding sleeve 3, top 4, power transmission shaft 5, reduction box 6, electricity
Machine 7, control cabinet 8, locking device 9, bearing 10, sliding bearing 12 and pre-tightening force adjusting device 1.
Tailstock body 2 is provided with the through hole of both ends open, and sliding sleeve 3 is slidably arranged in the through hole of tailstock body 2, slip cap
The left end of cylinder 3 sets top 4, and the right-hand member of sliding sleeve 3 sets power transmission shaft 5, in addition, being provided with interior spiral shell in the right-hand member of sliding sleeve 3
Line sleeve 310, the left end of power transmission shaft 5 are provided with trapezoidal thread, the trapezoidal thread on power transmission shaft 5 and the interior spiral shell in sliding sleeve 3
The screw-driven of line sleeve 310 connects.Sliding bearing 12 is arranged in tailstock body 2, and sliding bearing 12 is enclosed on power transmission shaft 5.
The right-hand member with power transmission shaft 5, the output end of reduction box 6 are connected respectively at the both ends of pre-tightening force adjusting device 1, now,
Two ways be present in the connection of pre-tightening force adjusting device 1 and reduction box 6, power transmission shaft 5：A left side in one, pre-tightening force adjusting device 1
The centre of gyration of end cap 111 is connected with the right-hand member of power transmission shaft 5, the centre of gyration of the adjustment axis 140 in pre-tightening force adjusting device 1
It is connected with the output end of reduction box 6；Or the centre of gyration of the left end cap 111 in pre-tightening force adjusting device 1 and reduction box 6
Output end be connected, the centre of gyration of the adjustment axis 140 in pre-tightening force adjusting device 1 is connected with the right-hand member of power transmission shaft 5.Branch
Seat 10 is used for fixed preload adjusting means 1.The input of reduction box 6 is connected with the output end of motor 7, and reduction box 6 is tooth
Take turns reduction box.Locking device 9 is arranged on tailstock body 2, and locking device 9 is used for after sliding sleeve 3 is moved into correct position
It is locked, prevents sliding sleeve 3 from loosening.Control cabinet 8 electrically connects with motor 7, and motor 7 is using dextrorotation stepping electricity
Machine, control cabinet 8 are provided with for ' entering ', ' moving back ', ' stopping ' switch, in the present embodiment, pre-tightening force adjusting device 1, reduction box
6th, motor 7 is preferably disposed on inside control cabinet 8.
In ' entering ' switch on by control cabinet 8, motor 7 rotates, and is then incited somebody to action by reduction box 6, pre-tightening force adjusting device 1
Power passes to power transmission shaft 5, and power transmission shaft 5 passes through the threaded connection with inner thread sleeve 310 so that sliding sleeve 3 is towards away from biography
Moving axis 5 direction movement, so as to allow it is top 4 stretch out, that is, realize into operation, likewise, by ' moving back ' switch when, motor 7
Direction of rotation when direction of rotation by ' entering ' just with being switched on the contrary, can realize the operation moved back.
In addition, it is stuck in tailstock body 2 during in order to prevent 3 limit of sports record position of sliding sleeve, in sliding sleeve 3 and tailstock
Travel limit screw 11 is provided between body 2.
Because embodiment one is different from the installation site for differing only in pre-tightening force adjusting device 1 of embodiment two, and institute
There is part, therefore omit the accompanying drawing of embodiment two herein.
Although embodiment of the present utility model has been shown and described above, it is to be understood that above-described embodiment is
Exemplary, it is impossible to it is interpreted as to limitation of the present utility model, one of ordinary skill in the art is in the scope of the utility model
It is interior above-described embodiment to be changed, changed, replaced and modification.
Claims (10)
1. a kind of pre-tightening force adjusting device, it is characterised in that pre-tightening force adjusting device (1) includes end cap (110), adjusting bracket
(120), adjusting nut (130), adjustment axis (140), ball (150), spring (160), one end and end of the adjustment axis (140)
One end of lid (110) is connected, and the adjusting bracket (120) is enclosed in adjustment axis (140)；Adjusting nut (130) arrangement
In side of the adjusting bracket (120) away from end cap (110), and the adjusting nut (130) is threadedly coupled with adjustment axis (140)；
The end cap (110) is provided with rail groove (1111), and ball screens (1112), the spring are provided with the rail groove (1111)
(160) it is arranged between rail groove (1111) and adjusting bracket (120), the ball (150) is movably arranged on rail groove
(1111) between spring (160).
2. a kind of pre-tightening force adjusting device according to claim 1, it is characterised in that each on the end cap (110)
The position of ball screens (1112) institute face is equipped with the mounting hole (1121) for accommodating spring (160).
3. a kind of pre-tightening force adjusting device according to claim 2, it is characterised in that the end cap (110) includes left end
(111), right end cap (112) are covered, the rail groove (1111) is arranged on the right side of left end cap (111), the mounting hole
(1121) it is opened on the right end cap (112), the mounting hole (1121) while the end of left and right two for running through right end cap (112)
Face；The right-hand member of the left end cap (111) is connected with the left end of the right end cap (112), the adjustment axis (140) and the right side
The centre of gyration of the right side of end cap (112) is connected.
4. a kind of pre-tightening force adjusting device according to claim 3, it is characterised in that the rail groove (1111) is in annulus
Shape.
5. a kind of pre-tightening force adjusting device according to claim 3, it is characterised in that set on the adjusting bracket (120)
There is precompressed draft control lever (121), one end of the precompressed draft control lever (121) is extend into mounting hole (1121), and and spring
(160) it is inconsistent.
A kind of 6. pre-tightening force adjusting device according to any one of claim 1 to 5, it is characterised in that the spring (160)
Quantity be 1-6, the ball (150), ball screens (1112) quantity corresponding to it is equal with the quantity of spring (160).
A kind of 7. tailstock tool, it is characterised in that including tailstock body (2), sliding sleeve (3), top (4), power transmission shaft (5), subtract
Fast case (6), motor (7), control cabinet (8) and pre-tightening force adjusting device (1) as described in any one of claim 1 to 6, the slip
Sleeve (3) is slidably arranged in tailstock body (2), and one end of the sliding sleeve (3) sets top (4), the sliding sleeve (3)
The other end power transmission shaft (5) is set, the power transmission shaft (5) is connected with the sliding sleeve (3) screw-driven, the power transmission shaft
(5) one end away from sliding sleeve (3) is connected with the output end of reduction box (6), the both ends of the pre-tightening force adjusting device (1)
The input with reduction box (6), the output end of motor (7) are connected respectively, and the control cabinet (8) electrically connects with motor (7).
8. a kind of tailstock tool according to claim 7, it is characterised in that be provided with internal thread in the sliding sleeve (3)
Sleeve (310), the power transmission shaft (5) are provided with trapezoidal thread, trapezoidal thread and inner thread sleeve on the power transmission shaft (5)
(310) mutually screw.
A kind of 9. tailstock tool, it is characterised in that including tailstock body (2), sliding sleeve (3), top (4), power transmission shaft (5), subtract
Fast case (6), motor (7), control cabinet (8) and pre-tightening force adjusting device (1) as described in any one of claim 1 to 6, the slip
Sleeve (3) is slidably arranged in tailstock body (2), and one end of the sliding sleeve (3) sets top (4), the sliding sleeve (3)
The other end power transmission shaft (5) is set, the power transmission shaft (5) is connected with the sliding sleeve (3) screw-driven, the pretightning force tune
Output end of the both ends of regulating device (1) respectively with the one end of power transmission shaft (5) away from sliding sleeve (3), reduction box (6) is connected,
The output end of the motor (7) is connected with the input of reduction box (6), and the control cabinet (8) electrically connects with motor (7).
10. a kind of tailstock tool according to claim 9, it is characterised in that be provided with internal thread in the sliding sleeve (3)
Sleeve (310), the power transmission shaft (5) are provided with trapezoidal thread, trapezoidal thread and inner thread sleeve on the power transmission shaft (5)
(310) mutually screw.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720997316.1U CN207026501U (en) | 2017-08-10 | 2017-08-10 | A kind of pre-tightening force adjusting device and the tailstock tool containing it |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720997316.1U CN207026501U (en) | 2017-08-10 | 2017-08-10 | A kind of pre-tightening force adjusting device and the tailstock tool containing it |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207026501U true CN207026501U (en) | 2018-02-23 |
Family
ID=61475167
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720997316.1U Active CN207026501U (en) | 2017-08-10 | 2017-08-10 | A kind of pre-tightening force adjusting device and the tailstock tool containing it |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207026501U (en) |
-
2017
- 2017-08-10 CN CN201720997316.1U patent/CN207026501U/en active Active
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