CN204075830U - Center with Centrifugal Driving Bar - Google Patents
Center with Centrifugal Driving Bar Download PDFInfo
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- CN204075830U CN204075830U CN201420477571.XU CN201420477571U CN204075830U CN 204075830 U CN204075830 U CN 204075830U CN 201420477571 U CN201420477571 U CN 201420477571U CN 204075830 U CN204075830 U CN 204075830U
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- clamp body
- lever
- pusher dog
- centrifugal
- center
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Abstract
The utility model discloses a kind of Center with Centrifugal Driving Bar, comprise clamp body; Many pusher dogs, it to be arranged in this clamp body and all along the axially extension of this clamp body, and can move along this clamp body axial reciprocating, and its that end with cutting edge all stretches out the same end face of this clamp body; The centrifugal weight that also can move back and forth along the radial direction of this clamp body in described clamp body is arranged at described pusher dog one_to_one corresponding; With described pusher dog and centrifugal weight lever one to one, these levers are lever of first order; One end of each root lever described is flexibly connected with corresponding centrifugal weight, and the other end of this lever is flexibly connected with corresponding pusher dog.It can hold workpiece more quickly, the strong adhesion of pusher dog ejecting workpiece, and structure is simple, and processing cost is low.
Description
Technical field
The utility model relates to jig, specifically relates to a kind of Center with Centrifugal Driving Bar.
Background technology
Driving top is a kind of novel jig, relies on and drives claw embedding workpiece end face to make it rotate with machine tool chief axis, thus instead of heart carrier and chuck completely.Drive top clamped one time can complete each axle journal, end face, grooved and screw thread process; Turning milling center once can also complete the processing of keyway and oilhole, substantially reduce clamping non-cutting time, compare working (machining) efficiency with traditional clamping chuck and improve more than 2 times.Owing to not needing clamping again, axiality and position degree more guaranteed, be thus applied to the turning of axial workpiece, grinding and tooth Profile Machining more and more widely.Chinese patent literature discloses a kind of Center with Centrifugal Driving Bar (publication No.: CN 203170989 U adapting to small diameter clamping workpiece, publication date: 2013.09.04), it mainly comprises clamp body, plunger, lever, flexible media, centrifugal weight, sprue, pusher dog, front top, the left chamber of three pusher dogs loads flexible media, three centrifugal weights load in clamp body, sprue and centrifugal weight are laterally consolidated, three pusher dogs are around axle center, be evenly distributed in clamp body, mutually in the angle of 120 °, three plungers are connected with centrifugal weight respectively by floating lever rod, flexible media abrim between plunger and pusher dog.Its advantage is the high-speed turning that can adapt to axial workpiece well, and improve the positional precision between workpiece relevant surfaces, simple and compact for structure, anufacturability is good, applied widely.But also there is a little problem in the Center with Centrifugal Driving Bar of this structure: one, because the centrifugal weight of this Center with Centrifugal Driving Bar radially throws away under the influence of centrifugal force, centrifugal force by leverage on plunger, plunger is forced to move to axis direction, plunger and then compressed flexible medium, make flexible media promote the motion of pusher dog right direction, thus reach the object of ejecting workpiece, therefore drive disk assembly is many, and structure is more complicated; They are two years old, flexible media in its drive disk assembly is shunk when compressing needs experience time course, cause power transmission length consuming time, and need to overcome in power transmission process this flexible media by the reaction force produced during compression, the kinetic equation loss causing centrifugal weight to produce is comparatively large, reduces the adhesive force of pusher dog.
Summary of the invention
The technical problems to be solved in the utility model is: provide a kind of pusher dog ejecting workpiece speed fast and the Center with Centrifugal Driving Bar of strong adhesion.
In order to solve the problems of the technologies described above, the utility model adopts following technical scheme:
A kind of Center with Centrifugal Driving Bar, comprises
Clamp body;
Many pusher dogs, it to be arranged in this clamp body and all along the axially extension of this clamp body, and can move along this clamp body axial reciprocating, and its that end with cutting edge all stretches out the same end face of this clamp body;
The centrifugal weight that also can move back and forth along the radial direction of this clamp body in described clamp body is arranged at described pusher dog one_to_one corresponding; And
With described pusher dog and centrifugal weight lever one to one, these levers are lever of first order;
One end of each root lever described is flexibly connected with corresponding centrifugal weight, and the other end of this lever is flexibly connected with corresponding pusher dog.
Angle between the power arm of described lever and its resistance arm is greater than 0 degree and is less than or equal to 180 degree.
Angle between the power arm of described lever and its resistance arm is 90 degree.
That end that described lever and corresponding centrifugal weight connect has pestle head, and this centrifugal weight has the mortar nest be connected with this pestle head.
That end that described lever and corresponding pusher dog connect has pestle head, and this pusher dog has the mortar nest be connected with this pestle head.
Advantageous Effects of the present utility model is:
The utility model adopts one end of lever to be flexibly connected with corresponding centrifugal weight and the structure that is flexibly connected with corresponding pusher dog of the other end of this lever, during for work pieces process, centrifugal weight radially outward throws away along clamp body under the influence of centrifugal force, make lever around its fulcrum thus directly promote pusher dog to move outside the end face direction that it stretches out vertically, thus make the cutting edge of pusher dog external part contact also micro-embedding wherein with surface of the work, thus reach the object of ejecting workpiece.As can be seen here, the utility model adopts lever directly to promote pusher dog, and power transmission need be carried out by plunger and flexible media unlike prior art, therefore power transmission is consuming time short, can realize holding workpiece more quickly, power transmission process medium power loss is simultaneously little, the strong adhesion of pusher dog ejecting workpiece; Relative to prior art, the utility model decreases parts, therefore its structure is simple, and processing cost is low.
Accompanying drawing explanation
Fig. 1 is a kind of 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 and Fig. 2 shows a kind of Center with Centrifugal Driving Bar of the present utility model, comprises Morse taper shank 1, clamp body 3, two pusher dogs 6, centrifugal weight 5, lever 4 and top 7; Two pusher dogs 6 are arranged in clamp body 3, all axially extend along clamp body 3, that end with cutting edge of these pusher dogs 6 all stretches out the same end face of clamp body 3, and these pusher dogs 6 are uniform and can move along this clamp body 3 axial reciprocating along the circumference being the center of circle with this clamp body 3 axle center; Top 7 to be arranged in clamp body 3 and axis along this clamp body 3 extends and stretches out an end face of clamp body 3, this end face is the same end face that pusher dog 6 stretches out, what Morse taper shank 1 was fixed on clamp body 3 by screw 2 stretches out that relative end face of end face with top 7, during for work pieces process, Morse taper shank 1 inserts machine tool chief axis and ensures that centering and self-locking realize being connected; Centrifugal weight 5 to be arranged in clamp body 3 and can move back and forth along the radial direction of this clamp body 3 and with pusher dog 6 one_to_one corresponding; Lever 4 and pusher dog 6 and centrifugal weight 5 one_to_one corresponding, these levers 4 are lever of first order, the power arm of these levers 4 and its resistance arm are in " L " type, namely the angle between the power arm of these levers 4 and its resistance arm is 90 degree, the two ends of each lever have a pestle head respectively, the pestle head of one end of each lever 4 is connected with the mortar nest on corresponding centrifugal weight 5 formation movable connection structure respectively, and the pestle head of the other end of these levers 4 is connected with the mortar nest on corresponding pusher dog 6 formation movable connection structure respectively.
It should be noted that, lever 4 is not limited to above-mentioned " L " type, the angle between their power arm and its resistance arm be greater than 0 degree and be less than or equal to 180 degree all feasible.The quantity of pusher dog 6 is not particular value, can also be more majority, such as three, four etc., as long as uniform along the circumference being the center of circle with clamp body 3 axle center.Lever 4 and the movable connection structure between centrifugal weight 5, pusher dog 6 are not limited to pestle head mortar nest and cooperatively interact and be flexibly connected this structure, such as can be hinged between them.
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 (5)
1. a Center with Centrifugal Driving Bar, comprises
Clamp body;
Many pusher dogs, it to be arranged in this clamp body and all along the axially extension of this clamp body, and can move along this clamp body axial reciprocating, and its that end with cutting edge all stretches out the same end face of this clamp body;
The centrifugal weight that also can move back and forth along the radial direction of this clamp body in described clamp body is arranged at described pusher dog one_to_one corresponding; And
With described pusher dog and centrifugal weight lever one to one, these levers are lever of first order;
It is characterized in that, one end of each root lever described is flexibly connected with corresponding centrifugal weight, and the other end of this lever is flexibly connected with corresponding pusher dog.
2. Center with Centrifugal Driving Bar according to claim 1, is characterized in that, the angle between the power arm of described lever and its resistance arm is greater than 0 degree and is less than or equal to 180 degree.
3. Center with Centrifugal Driving Bar according to claim 2, is characterized in that, the angle between the power arm of described lever and its resistance arm is 90 degree.
4. the Center with Centrifugal Driving Bar according to claim 1,2 or 3, is characterized in that, that end that described lever and corresponding centrifugal weight connect has pestle head, and this centrifugal weight has the mortar nest be connected with this pestle head.
5. Center with Centrifugal Driving Bar according to claim 4, is characterized in that, that end that described lever and corresponding pusher dog connect has pestle head, and this pusher dog has the mortar nest be connected with this pestle head.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420477571.XU CN204075830U (en) | 2014-08-22 | 2014-08-22 | Center with Centrifugal Driving Bar |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420477571.XU CN204075830U (en) | 2014-08-22 | 2014-08-22 | Center with Centrifugal Driving Bar |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204075830U true CN204075830U (en) | 2015-01-07 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420477571.XU Active CN204075830U (en) | 2014-08-22 | 2014-08-22 | Center with Centrifugal Driving Bar |
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| Country | Link |
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| CN (1) | CN204075830U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107999794A (en) * | 2017-12-11 | 2018-05-08 | 重庆市银钢通科技有限公司 | A kind of top fixture |
| WO2020082356A1 (en) * | 2018-10-26 | 2020-04-30 | 蔡赛 | Tailstock structure of numerically controlled machine tool |
| CN114876968A (en) * | 2022-07-12 | 2022-08-09 | 四川工程职业技术学院 | Connecting structure of positioning cone |
-
2014
- 2014-08-22 CN CN201420477571.XU patent/CN204075830U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107999794A (en) * | 2017-12-11 | 2018-05-08 | 重庆市银钢通科技有限公司 | A kind of top fixture |
| WO2020082356A1 (en) * | 2018-10-26 | 2020-04-30 | 蔡赛 | Tailstock structure of numerically controlled machine tool |
| CN114876968A (en) * | 2022-07-12 | 2022-08-09 | 四川工程职业技术学院 | Connecting structure of positioning cone |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |