CN204366068U - Floating type end-driver center - Google Patents
Floating type end-driver center Download PDFInfo
- Publication number
- CN204366068U CN204366068U CN201420780557.7U CN201420780557U CN204366068U CN 204366068 U CN204366068 U CN 204366068U CN 201420780557 U CN201420780557 U CN 201420780557U CN 204366068 U CN204366068 U CN 204366068U
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- clamp body
- tooth bar
- floating type
- face
- pusher dog
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Abstract
The utility model discloses a kind of floating type end-driver center, comprise clamp body; Top, it is arranged in clamp body and axis along clamp body extends, and the front end face of clamp body is stretched out in its front end, and it can move along clamp body axial reciprocating; Many pusher dogs, it to be arranged in clamp body and all axially to extend and edge is uniform by the circumference centered by top along clamp body, and its that end with cutting edge all stretches out the front end face of clamp body, and it all can move along clamp body axial reciprocating; Top rear end outer wall at least has along its axially extended first tooth bar with pusher dog position in opposite directions respectively, and the outer wall of pusher dog at least has the second tooth bar with the first tooth bar position in opposite directions; Respectively there is gear between first and second tooth bar in opposite directions, engage respectively between gear and first and second corresponding tooth bar.It can adapt to the high-speed cutting of the slewing parts such as axle class or dish class, and solve the problem restricting cutting speed when machine tool chief axis runs up, structure is simple, and processing cost is low.
Description
Technical field
The utility model relates to a kind of end-driver center, specifically relates to a kind of floating type end-driver center.
Background technology
On lathe during the slewing parts such as working shaft-like or dish class, need first on lathe, to determine the position of part to be processed relative to cutter, then install with fixture and clip part to be processed, make it reliably to be clamped on fixed position, the major function of jig has been the clamping work of part.But, along with the continuous progress of cutter material and machine tool technology, machine spindle speed presents day by day high trend, clamping force due to traditional jig derives from the hydraulic cylinder being arranged on machine tool chief axis rear end, under high-speed cutting condition, its dynamic clamping force falls sharply with the raising of machine spindle speed, power transmission was easily lost efficacy, after the speed of mainshaft of lathe exceedes certain limit, the limit speed being installed on the hydraulic cylinder of rear-end of spindle just becomes the principal element restricting cutting speed and improve further.Meanwhile, the mode of the top clamping slewing parts of existing common double can not transmitting torque, thus needs to support the use driver plate, the first-class machine tool accessories of heart carrier for bolt is just able to transmitting torque.
For this reason, expect to seek a kind of technical scheme, at least to alleviate problem mentioned above.
Summary of the invention
The technical problems to be solved in the utility model is: provide a kind of floating type end-driver center that can adapt to the slewing parts high-speed cutting such as axle class or dish class.
In order to solve the problems of the technologies described above, the utility model adopts following technical scheme:
A kind of floating type end-driver center, comprises
Clamp body;
Top, it is arranged in described clamp body and axis along this clamp body extends, and the front end face of this clamp body is stretched out in its front end, and it can move along this clamp body axial reciprocating;
Many pusher dogs, its to be arranged in described clamp body and all along this clamp body axially extend and edge by described top centered by circumference uniform, its that end with cutting edge all stretches out the front end face of this clamp body, and it all can move along this clamp body axial reciprocating;
Described top rear end outer wall at least has along its axially extended first tooth bar with described pusher dog position in opposite directions respectively, and the outer wall of described pusher dog at least has the second tooth bar with described first tooth bar position in opposite directions; Respectively there is gear between described first and second tooth bar in opposite directions, engage respectively between this gear and first and second corresponding tooth bar.
Described in opposite directions between first and second tooth bar and corresponding gear, there is backlash.
The sidewall of described clamp body has screw, and this screw inward turning unification clamp nut, this clamp nut is against being pressed in described pusher dog and being slidably matched with this pusher dog respective external wall.
Described clamp nut is against that be pressed in described pusher dog, opposing with described gear position.
Described clamp body rear end, be Morse taper shank for the taper shank in mating connection with tapered bore of machine tool spindle.
Elastomeric element is provided with between the front end face of described Morse taper shank and described top rear end face.
Described elastomeric element is spring or elastic rubber.
The front end face center of described Morse taper shank has groove, and described elastomeric element is arranged in this groove.
Advantageous Effects of the present utility model is:
The utility model at least arranges along its axially extended first tooth bar with pusher dog position in opposite directions at top rear end outer wall respectively, and the outer wall of pusher dog at least arranges the second tooth bar with the first tooth bar position in opposite directions; Respectively there is gear between first and second tooth bar in opposite directions, engage respectively between this gear and first and second corresponding tooth bar.Gear pair is formed respectively between such gear and first and second tooth bar in opposite directions, when part is by the top location at two ends, and under the effect of tailstock pressure, of the present utility modelly toply axially to shrink in this clamp body along clamp body, by gear pair by power transmission to pusher dog, thus promotion pusher dog axially moves to this clamp body front end face direction along clamp body, finally, the cutting edge of these pusher dog front ends contacts with clamped part end face and trace embeds wherein, thus reach the object holding part, provide moment of torsion to give clamped part.As can be seen here, the utility model drives pusher dog by gear pair, hydraulic cylinder without the need to machine tool chief axis additionally provides pressure, simultaneously pusher dog can action simultaneously under gear pair drives, can ensure that the power that pusher dog acts on part end face is approximate consistent, to ensure that each pusher dog effectively contacts with the end face of part, thus make to be kept good dynamic balancing by holding parts entirety, to adapt to the slewing parts high-speed cutting such as axle class or dish class, solve existing jig after the speed of mainshaft of lathe exceedes certain limit, the problem that the limit speed restriction cutting speed being installed on the hydraulic cylinder of rear-end of spindle improves further.The utility model adopts gear pair to drive pusher dog, and its structure is simple, and without the need to the machine tool accessories of driver plate, the first-class transmitting torque of heart carrier for bolt, processing cost is low, simultaneously because gear pair centre-to-centre spacing is less, part end face therefore can be allowed to have larger squareness tolerance.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model;
Fig. 2 is the right view of Fig. 1.
Detailed description of the invention
For can technical characteristic of the present utility model and effect be described in detail, and can realize according to the content of this description, below in conjunction with accompanying drawing, embodiment of the present utility model be further illustrated.
Fig. 1 shows the floating type end-driver center of one of the present utility model, comprises clamp body 1, top 2, pusher dog 3, gear 4 and Morse taper shank 6.Morse taper shank 6 is fixed on the rear end of clamp body 1 by screw 7, Morse taper shank 6 is in mating connection with tapered bore of machine tool spindle, realize centering and auto-lock function, those skilled in the art includes but not limited to above-mentioned Morse taper shank 6 it is understood that clamp body 1 rear end is used for the taper shank in mating connection with tapered bore of machine tool spindle.Elastomeric element 9 is provided with between the front end face of Morse taper shank 6 and the rear end face of top 2, elastomeric element 9 is for ensureing the accurate centering of top 2 pairs of parts 8, in the present embodiment, what elastomeric element 9 was selected is spring, but iting is noted that spring is only one in numerous elastomeric element and can not be interpreted as is restriction scope of the present utility model, as required, also other elastomeric elements can be selected, such as elastic rubber etc.In order to avoid elastomeric element 9 cannot play its function radially sliding along Morse taper shank 6 front end face, the front end face center of Morse taper shank 6 has groove 61, and elastomeric element 9 is arranged in groove 61.Top 2 to be arranged in clamp body 1 and axis along clamp body 1 extends, the front end face 11 of clamp body 1 is stretched out in the front end of top 2, top 2 can move along clamp body 1 axial reciprocating, top 2 position for the center of withstanding part 8 end face, the rear end outer wall of top 2 and pusher dog 3 position in opposite directions have along its axially extended first tooth bar 21 respectively, also can arrange along its axially extended first tooth bar 21 by whole outer wall in the rear end of top 2.In the lump see Fig. 2, pusher dog 3 is two, they to be arranged in clamp body 1 and all axially to extend and the circumference of edge centered by top 2 is uniform along clamp body 1, that end (i.e. front end) that these two pusher dogs 3 have a cutting edge 32 all stretches out the front end face 11 of clamp body 1, these two pusher dogs 3 all can move along clamp body 1 axial reciprocating, the outer wall of these two pusher dogs 3 and first tooth bar 21 position in opposite directions of top 2 have the second tooth bar 31, also can arrange along its axially extended second tooth bar 31 at the whole outer wall in the rear end of pusher dog 3.Gear 4 is two, and they are arranged between first and second tooth bar 21,31 in opposite directions respectively, engage respectively and form gear pair between each gear 4 and first and second corresponding tooth bar 21,31.Between first and second tooth bar 21,31 in opposite directions and corresponding gear 4, there is backlash, to ensure that the cutting edge 32 of pusher dog 3 effectively can embed piece surface, the size of this backlash should make up first and second tooth bar 21,31 and gear 4 foozle, meet the prerequisite of lubrication under, select slightly large size.
See Fig. 1, the sidewall of clamp body 1 has screw 12, screw 12 inward turning unification clamp nut 5, clamp nut 5 is against being pressed in pusher dog 3 and being slidably matched with this pusher dog 3 respective external wall, clamp nut 5 is mainly used for the gear pair formed between adjustment first tooth bar 21, second tooth bar 31 and respective gears 4, and making can correct engagement between them.Better, clamp nut 5 is against that be pressed in pusher dog 3, opposing with gear 4 position.
It should be noted that, the quantity of above-mentioned pusher dog 3 is not particular value, can also be more majority, such as three, four etc., as long as uniform along the circumference centered by top 2.Parts of the present utility model should be made up of hard material, as hard metal (steel, iron), hard plastics etc.
It also should be noted that, each the concrete technical characteristic described in above-mentioned detailed description of the invention, in reconcilable situation, can be combined by any applicable mode.In order to avoid unnecessary repetition, the utility model is no longer described various possible combination.
Being described in detail the utility model above with reference to embodiment, is illustrative and not restrictive, in the change do not departed under the utility model general plotting and amendment, all within protection domain of the present utility model.
Claims (8)
1. a floating type end-driver center, comprises
Clamp body;
Top, it is arranged in described clamp body and axis along this clamp body extends, and the front end face of this clamp body is stretched out in its front end, and it can move along this clamp body axial reciprocating;
Many pusher dogs, its to be arranged in described clamp body and all along this clamp body axially extend and edge by described top centered by circumference uniform, its that end with cutting edge all stretches out the front end face of this clamp body, and it all can move along this clamp body axial reciprocating;
It is characterized in that, described top rear end outer wall at least has along its axially extended first tooth bar with described pusher dog position in opposite directions respectively, and the outer wall of described pusher dog at least has the second tooth bar with described first tooth bar position in opposite directions; Respectively there is gear between described first and second tooth bar in opposite directions, engage respectively between this gear and first and second corresponding tooth bar.
2. floating type end-driver center according to claim 1, is characterized in that, described in opposite directions between first and second tooth bar and corresponding gear, there is backlash.
3. floating type end-driver center according to claim 1, is characterized in that, the sidewall of described clamp body has screw, and this screw inward turning unification clamp nut, this clamp nut is against being pressed in described pusher dog and being slidably matched with this pusher dog respective external wall.
4. floating type end-driver center according to claim 3, is characterized in that, described clamp nut is against that be pressed in described pusher dog, opposing with described gear position.
5. the floating type end-driver center according to any one of Claims 1-4, is characterized in that, described clamp body rear end, be Morse taper shank for the taper shank in mating connection with tapered bore of machine tool spindle.
6. floating type end-driver center according to claim 5, is characterized in that, is provided with elastomeric element between the front end face of described Morse taper shank and described top rear end face.
7. floating type end-driver center according to claim 6, is characterized in that, described elastomeric element is spring or elastic rubber.
8. floating type end-driver center according to claim 6, is characterized in that, the front end face center of described Morse taper shank has groove, and described elastomeric element is arranged in this groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420780557.7U CN204366068U (en) | 2014-12-12 | 2014-12-12 | Floating type end-driver center |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420780557.7U CN204366068U (en) | 2014-12-12 | 2014-12-12 | Floating type end-driver center |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204366068U true CN204366068U (en) | 2015-06-03 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420780557.7U Active CN204366068U (en) | 2014-12-12 | 2014-12-12 | Floating type end-driver center |
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| CN (1) | CN204366068U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109079167A (en) * | 2018-09-03 | 2018-12-25 | 新乡市豫北靖道汽车零部件有限公司 | It is self-centering top |
| CN111122156A (en) * | 2020-03-30 | 2020-05-08 | 南京泰普森自动化设备有限公司 | Measuring system for shaft parts |
| CN111331161A (en) * | 2020-03-26 | 2020-06-26 | 辽宁忠旺机械设备制造有限公司 | Mechanical linkage centre |
| CN114473080A (en) * | 2022-02-22 | 2022-05-13 | 浙江午马减速机有限公司 | Elastic pre-tightening clamp for end face of gear shaft of speed reducer |
-
2014
- 2014-12-12 CN CN201420780557.7U patent/CN204366068U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109079167A (en) * | 2018-09-03 | 2018-12-25 | 新乡市豫北靖道汽车零部件有限公司 | It is self-centering top |
| CN111331161A (en) * | 2020-03-26 | 2020-06-26 | 辽宁忠旺机械设备制造有限公司 | Mechanical linkage centre |
| CN111122156A (en) * | 2020-03-30 | 2020-05-08 | 南京泰普森自动化设备有限公司 | Measuring system for shaft parts |
| CN114473080A (en) * | 2022-02-22 | 2022-05-13 | 浙江午马减速机有限公司 | Elastic pre-tightening clamp for end face of gear shaft of speed reducer |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |