CN209174916U - The double-end tip and fixture of turnery processing for shaft-like workpiece - Google Patents
The double-end tip and fixture of turnery processing for shaft-like workpiece Download PDFInfo
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- CN209174916U CN209174916U CN201821609912.9U CN201821609912U CN209174916U CN 209174916 U CN209174916 U CN 209174916U CN 201821609912 U CN201821609912 U CN 201821609912U CN 209174916 U CN209174916 U CN 209174916U
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Abstract
The utility model provides the double-end tip and fixture of a kind of turnery processing for shaft-like workpiece, which includes: sleeve；Rolling center is inserted into sleeve from the first end section of sleeve, and can be moved axially relative to sleeve；Stationary center is inserted into sleeve from the second end section of sleeve, and fixes relative to sleeve；And spring, it is arranged in sleeve and is resisted against between rolling center and stationary center, rolling center is moved axially by the flexible of spring relative to sleeve.
Description
Technical field
The utility model relates to field of machining.Specifically, the utility model relates to a kind of vehicles for shaft-like workpiece
Cut the double-end tip of processing and the fixture including the double-end tip.
Background technique
In the turnery processing of axial workpiece, it will usually it encounters after the shaft end portion of holding parts is processed,
The case where another shaft end portion is processed is clamped again.If carrying out the two procedure of processings on same a machine tool, need
It completes a procedure of processing and part is reversed end for end into new clamping of laying equal stress on later.Since the structure in two shaft ends portion of part is often different,
The fixture used in two procedure of processings is also different.Therefore, fixture is needed replacing between two procedure of processings.This results in
Complicated for operation and clamping workpiece spends time long problem.
Utility model content
The utility model provides a kind of double-end tip of the turnery processing for shaft-like workpiece and including the double end top
The fixture of point, can be clamped and position to the axial ends of same workpiece, so that during Same Part u-turn processing
Replacement fixture is not needed, to solve the problems, such as that aforesaid operations are complicated, the clamping workpiece cost time is long.
The one aspect of the utility model provides a kind of double-end tip of turnery processing for shaft-like workpiece, packet
It includes: sleeve；Rolling center is inserted into sleeve from the first end section of sleeve, and can axially be moved relative to sleeve
It is dynamic；Stationary center is inserted into sleeve from the second end section of sleeve, and fixes relative to sleeve；And spring,
It is arranged in sleeve and is resisted against between rolling center and stationary center, rolling center passes through the flexible relative to quill of spring
To movement.
According to one embodiment, wherein rolling center includes the first top tip part and the first bar portion, and the first bar portion is inserted into sleeve
First end and axially inner side in rolling center relative to the first end for being always positioned at sleeve during the axial movement of sleeve.
According to one embodiment, wherein the first bar portion has hollow cylindrical, and hollow cylindrical is for accommodating the spring
First end.
According to one embodiment, wherein stationary center includes the second top tip part and the second bar portion, and the second bar portion includes axial
The large diameter portion and small diameter portion being adjacently positioned, small diameter portion are inserted in sleeve, and large-diameter portion from axially external against the sleeve
Second end.
According to one embodiment, wherein the small diameter portion of stationary center has hollow cylindrical, and hollow cylindrical is for accommodating
The second end of spring.
According to one embodiment, wherein the corresponding pin hole in position is formed on the small diameter portion and sleeve of stationary center, and
Double-end tip further includes pin, and the stationary center is fixed on sleeve by the cooperation of pin and pin hole.
According to the other side of the present embodiment, a kind of fixture of turnery processing for shaft-like workpiece is provided, is wrapped
Include double-end tip described in any embodiment as above；And claw, claw include the first clamping part and of axially adjacent arrangement
Two clamping parts, wherein fixture has the first use state and the second use state, under the first use state, the first clamping part
The centre bore of the shaft end portion of clamping workpiece and the second top tip part of stationary center on the end face in shaft end portion, and second
Under use state, the shaft end portion of the second clamping part clamping workpiece, the first top tip part of rolling center is on the end face in shaft end portion
Centre bore and sleeve second end against shaft end portion end face, wherein the first clamping part under two kinds of use states of fixture
It is different with the diameter in shaft end portion of workpiece clamped by the second clamping part.
According to one embodiment, wherein under two kinds of use states of fixture folded by the first clamping part and the second clamping part
The shaft end portion held is two opposite axial end sections of the same workpiece.
According to one embodiment, wherein the first clamping part and the second clamping part include the clamping in partial cylindrical surface shape
Face.
According to one embodiment, wherein the clamping face of the first clamping part and the second clamping part is arranged to axially adjacent arrangement
Step surface.
The double-end tip of turnery processing according to the present utility model for shaft-like workpiece and including the double end top as a result,
The fixture of point, can be clamped and be positioned to the axial ends of same workpiece, so that during Same Part u-turn processing not
Fixture is needed replacing, so that easy to operate and clamping workpiece takes a short time.
Detailed description of the invention
In the following, by being retouched in conjunction with feature, advantage and technical effect of the attached drawing to the exemplary embodiment of the utility model
It states, similar appended drawing reference indicates similar element in attached drawing, in which:
Fig. 1 shows the perspective view of the double-end tip of embodiment according to the present utility model.
Fig. 2 shows the perspective view of the claw of embodiment according to the present utility model and main views.
Fig. 3 shows the schematic diagram that claw shown in Fig. 2 is mounted on scroll chuck.
Fig. 4 A and 4B show the schematic diagram of the use state of the fixture using embodiment according to the present utility model, wherein
The knot of the claw of double-end tip shown in FIG. 1 and another embodiment according to the present utility model is shown with broken section
Structure.
Specific embodiment
Hereinafter, the embodiments of the present invention are described with reference to the accompanying drawings.Following detailed description and drawings are for exemplary
Ground illustrates the principles of the present invention, and the utility model is not limited to described preferred embodiment, the scope of the utility model by
Claims limit.
As shown in Fig. 1 and Fig. 4 A-4B, double-end tip 10 includes sleeve 1, rolling center 2, stationary center 3 and spring
4.Rolling center 2 is inserted into sleeve 1 from the first end section of sleeve 1, and can be moved axially relative to sleeve 1.Gu
Fixed top 3 are inserted into sleeve 1 from the second end section of sleeve 1, and fixed relative to sleeve 1.Spring 4 is arranged in sleeve
It in 1 and is resisted against between rolling center 2 and stationary center 3, wherein rolling center 2 passes through the flexible relative to sleeve 1 of spring 4
Axial movement.
More specifically, rolling center 2 includes the first top tip part 21 and the first bar portion 22, wherein the first bar portion 22 is from sleeve 1
First end be inserted into sleeve 1, and in rolling center 2 relative to being always positioned at the first of sleeve 1 during the axial movement of sleeve 1
The axially inner side at end.First bar portion 22 has hollow cylindrical 23, and hollow cylindrical 23 is used to accommodate the first end of spring 4.
Stationary center 3 includes the second top tip part 31 and the second bar portion 32, wherein the second bar portion 32 includes axially adjacent arrangement
Large-diameter portion 321 and small diameter portion 322, small diameter portion 322 is inserted in sleeve 1, and large-diameter portion 321 stretches out in the outside of sleeve 1
And from the axially external second end against sleeve 1.Position reciprocal correspondence is formed on the small diameter portion 322 and sleeve 1 of stationary center 3
Pin hole.Stationary center 3 is fixed on sleeve 1 by the mating connection of pin 5 and pin hole.In addition, the small diameter portion of stationary center 3
322 are formed as hollow cylindrical, that is, have hollow cylindrical 323, the hollow cylindrical 323 is for accommodating the second of spring 4
End.
The first end and second end of spring 4 is respectively received in the hollow cylindrical 23 and stationary center 3 of rolling center 2
In hollow round column portion 323, to be resisted against between rolling center 2 and stationary center 3.When the top tip part 21 of rolling center 2 is pressed
When power, spring 4 is compressed, and the axially inner side of rolling center 2 towards sleeve 1 is shunk.Under not pressured state, spring 4 stretches simultaneously
Rolling center 2 is ejected axially outward.The first end of sleeve 1 includes the flange extended radially inwardly from sleeve wall, the flange
Internal diameter is greater than the maximum outside diameter of the first top tip part 21 of rolling center 2, while outer less than the first bar portion 21 of rolling center 2
Diameter.Rolling center 2 will not be detached from when moving axially with the flexible of spring 4 along sleeve 1 from sleeve 1 as a result,.
In addition, only allow the gap of very little between the outer wall of the first bar portion 21 and the inner wall of sleeve of rolling center 2, so that
Rolling center 2 can be mobile relative to sleeve, but cannot circumferentially rotate, to guarantee the precision of workpiece centre alignment.
In addition, in the above-described embodiments, the both ends of spring 4 are accommodated in the hollow circuit cylinder of rolling center 2 and stationary center 3
To be resisted against between rolling center 2 and stationary center 3 in portion.But the arrangement of spring 4 is without being limited thereto.According to the utility model
Other embodiments, rolling center 2 and stationary center 3 can not also include the hollow cylindrical for accommodating spring 4, the first bar portion 22
And/or small diameter portion 322 be also possible to it is solid, as long as spring 4 can be resisted against between rolling center 2 and stationary center 3 i.e.
It can.
In addition, as shown in Fig. 2, claw according to the present utility model 60 include the first clamping part 61 and the second clamping part 62,
First clamping part 61 and the second clamping part 62 include the clamping face in partial cylindrical surface shape, with the shaft end portion to workpiece into
Row clamps and positioning.In the state that claw 60 is installed to chuck, the first clamping part 61 and the axially adjacent cloth of the second clamping part 62
It sets, the clamping face of the two forms the step surface of axially adjacent arrangement.The first clamping part 61 and the second clamping part 62 are suitable for as a result,
Clamp the different shaft end portion of diameter.The claw 60 that Fig. 3 shows embodiment shown in Fig. 2 is mounted on the structural representation on chuck 70
Figure.As shown in figure 3, the first clamping part 61 is suitable for clamping the shaft end portion that is relatively large in diameter, the second clamping part 62 be suitable for clamping diameter compared with
Small shaft end portion.
In addition, first clamping part 61 and the second clamping part 62 are formed as individual component in claw 60 shown in Fig. 2,
The two can be fastenedly connected by bolt etc., and be fastenedly connected on the matrix 63 of claw 60.Claw 60 is via matrix 63
Mode is such as connected by key fixed on chuck.
In addition, the first clamping part 61 and the second clamping part 62 can also be formed as an integrated structure, as illustrated in figures 4 a and 4b.The
The integral structure of one clamping part 61 and the second clamping part 62 is fastenedly connected on matrix 63, and claw 60 via matrix 63 for example
It the modes such as is connected by key to be fixed on chuck 70.
In the following, being carried out as fixture to workpiece with reference to Fig. 4 A and 4B description using the double-end tip and claw of the utility model
The working principle for clamping and positioning.Claw 60 is mounted on chuck 70 (such as scroll chuck), and double-end tip 10 is installed to
In spindle mounting hole, to be clamped and position to workpiece.In addition, Fig. 4 A and 4B on same lathe to include two shaft ends
Description is unfolded for being processed in the crank shaft blank in portion (flange end and preceding nose end), wherein the flange end of crank shaft blank is with before
Nose has the biggish diameter of difference.
As Fig. 4 A shows the first use state of fixture according to the present utility model.In Figure 4 A, chuck 70 passes through card
The flange end of 61 clamping workpiece of the first clamping part of pawl 60, so that workpiece is circumferentially fixed and is generally centered.The set of double-end tip 10
The first end of cylinder 1 is resisted against in the stage portion of spindle mounting hole, and the top tip part of rolling center 2 is not contacted with other component, fixed
Top 3 top tip part is resisted against in the centre bore of the end face of workpiece flange end, while the preceding nose by means of being resisted against workpiece
Back centre (not shown) in centre bore makes workpiece centre alignment and axial restraint.Thus, it is possible to the prenasal of workpiece
End is processed.
After the preceding nose completion of processing of workpiece, workpiece is unloaded, and the u-turn of double-end tip 10 is installed as Fig. 4 B institute
Show state, that is, the large-diameter portion 321 of the stationary center 3 of double-end tip 10 is resisted against in the stage portion of spindle mounting hole, and fixed top
The top tip part of point 3 is not contacted with other component.Chuck 70 is made by the preceding nose of 62 clamping device of the second clamping part of claw 60
Workpiece is circumferentially fixed and is generally centered.The top tip part of rolling center 2 is resisted against before workpiece in the centre bore of the end face of nose, and
The end face of the end face of the first end of sleeve 1 nose before workpiece, while the centre bore of the flange end by means of being resisted against workpiece
In back centre (not shown), make workpiece centre be aligned and axial restraint.Thus, it is possible to which the flange end to workpiece carries out
Processing.
The double-end tip of turnery processing according to the present utility model for shaft-like workpiece and including the double end top as a result,
The fixture of point, can be clamped and position to the axial ends of same workpiece, so that during the u-turn processing of same workpiece not
Fixture is needed replacing, easy to operate, clamping takes a short time.
In addition, in the above-described embodiments, can be clamped and be positioned without more to the axial ends of same workpiece
Change fixture.But the utility model is without being limited thereto.Double-end tip and fixture according to the present utility model also can be to two differences
The shaft end portion of workpiece is clamped and positions, and can satisfy processing request with positioning method as long as clamping.
Although describing the utility model by reference to exemplary embodiment, however, it is understood that the utility model and unlimited
In the construction of above-described embodiment.On the contrary, the utility model is intended to cover various modifications example and equivalent arrangements.In addition, although each
The various elements of disclosed utility model are shown in kind exemplary combination body and construction, but including more, less element
Other combinations also fall within the scope of the utility model.
Claims (10)
1. a kind of double-end tip of the turnery processing for shaft-like workpiece comprising:
Sleeve；
Rolling center is inserted into the sleeve from the first end section of the sleeve, and can be relative to the set
Cylinder axial movement；
Stationary center is inserted into the sleeve from the second end section of the sleeve, and solid relative to the sleeve
It is fixed；And
Spring is arranged in the sleeve and is resisted against between the rolling center and the stationary center, the movable top
Point is moved axially by the flexible of the spring relative to the sleeve.
2. double-end tip according to claim 1, wherein
The rolling center include the first top tip part and the first bar portion, first bar portion be inserted into the first end of the sleeve and
In axially inner side of the rolling center relative to the first end for being always positioned at the sleeve during the axial movement of the sleeve.
3. double-end tip according to claim 2, wherein
First bar portion has hollow cylindrical, and the hollow cylindrical is used to accommodate the first end of the spring.
4. double-end tip according to any one of claim 1-3, wherein
The stationary center includes the second top tip part and the second bar portion, and second bar portion includes the large-diameter portion of axially adjacent arrangement
And small diameter portion, the small diameter portion are inserted in the sleeve, and the large-diameter portion from axially external against the of the sleeve
Two ends.
5. double-end tip according to claim 4, wherein
The small diameter portion of the stationary center has hollow cylindrical, and the hollow cylindrical is used to accommodate the second end of spring.
6. double-end tip according to claim 4, wherein
The corresponding pin hole in position is formed on the small diameter portion of the stationary center and the sleeve, and
The double-end tip further includes pin, and the stationary center is fixed on the sleeve by the cooperation of the pin and the pin hole
On.
7. a kind of fixture of the turnery processing for shaft-like workpiece comprising:
Such as double-end tip of any of claims 1-6；And
Claw, the claw include the first clamping part and the second clamping part of axially adjacent arrangement,
Wherein, the fixture has the first use state and the second use state, under first use state, described first
The shaft end portion of clamping part clamping workpiece and the second top tip part of the stationary center on the end face in the shaft end portion in
Heart hole, and under second use state, the shaft end portion of the second clamping part clamping workpiece, the of the rolling center
The second end of centre bore and the sleeve of one top tip part on the end face in the shaft end portion against the end face in the shaft end portion,
Wherein, the workpiece clamped by first clamping part and second clamping part under two kinds of use states of the fixture
Shaft end portion diameter it is different.
8. fixture according to claim 7, wherein
Shaft end portion clamped by first clamping part and second clamping part is under two kinds of use states of the fixture
Two opposite axial end sections of the same workpiece.
9. fixture according to claim 7 or 8, wherein
First clamping part and second clamping part include the clamping face in partial cylindrical surface shape.
10. fixture according to claim 7 or 8, wherein
The clamping face of first clamping part and second clamping part is arranged to the step surface of axially adjacent arrangement.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821609912.9U CN209174916U (en) | 2018-09-30 | 2018-09-30 | The double-end tip and fixture of turnery processing for shaft-like workpiece |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821609912.9U CN209174916U (en) | 2018-09-30 | 2018-09-30 | The double-end tip and fixture of turnery processing for shaft-like workpiece |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209174916U true CN209174916U (en) | 2019-07-30 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821609912.9U Active CN209174916U (en) | 2018-09-30 | 2018-09-30 | The double-end tip and fixture of turnery processing for shaft-like workpiece |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113245572A (en) * | 2021-04-21 | 2021-08-13 | 首钢京唐钢铁联合有限责任公司 | Tail tip device |
| CN114193323A (en) * | 2021-12-21 | 2022-03-18 | 万向钱潮股份有限公司 | Hard intermittent turning clamp for differential spider |
| CN114472934A (en) * | 2022-01-24 | 2022-05-13 | 镇江华阳电子有限公司 | Numerical control lathe convenient to unload of TNC type connector production |
-
2018
- 2018-09-30 CN CN201821609912.9U patent/CN209174916U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113245572A (en) * | 2021-04-21 | 2021-08-13 | 首钢京唐钢铁联合有限责任公司 | Tail tip device |
| CN113245572B (en) * | 2021-04-21 | 2022-10-04 | 首钢京唐钢铁联合有限责任公司 | Tail center device |
| CN114193323A (en) * | 2021-12-21 | 2022-03-18 | 万向钱潮股份有限公司 | Hard intermittent turning clamp for differential spider |
| CN114472934A (en) * | 2022-01-24 | 2022-05-13 | 镇江华阳电子有限公司 | Numerical control lathe convenient to unload of TNC type connector production |
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