CN203170989U - Centrifugal type end face driving centre suitable for clamping workpieces with small diameter - Google Patents
Centrifugal type end face driving centre suitable for clamping workpieces with small diameter Download PDFInfo
- Publication number
- CN203170989U CN203170989U CN 201220737361 CN201220737361U CN203170989U CN 203170989 U CN203170989 U CN 203170989U CN 201220737361 CN201220737361 CN 201220737361 CN 201220737361 U CN201220737361 U CN 201220737361U CN 203170989 U CN203170989 U CN 203170989U
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- China
- Prior art keywords
- centrifugal
- small diameter
- flexible media
- face driving
- clamp body
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Abstract
The utility model relates to a centrifugal type end face driving centre suitable for clamping workpieces with the small diameter. The centrifugal type end face driving centre mainly comprises a clamp body, plungers, levers, flexible media, centrifugal weight blocks, plug blocks, poking claws and a front centre, wherein the flexible media are filled in left cavities of the three poking claws, the three centrifugal weight blocks are installed into the clamp body, the plug blocks are fixedly combined with the centrifugal weight blocks transversely, the three poking claws (7) surround the axis and are evenly distributed inside the clamp body (1), the angle of 120 degrees is formed between every two poking claws, the three plungers are connected with the centrifugal weight blocks respectively through the floating levers, and the flexible media are filled between the plungers and the poking claws. The centrifugal type end face driving centre has the advantages of being suitable for high-speed turning on axis parts, improving position accuracy among the relevant surfaces of the workpieces, and being simple and compact in structure, good in manufacturing technique and wide in application range.
Description
Technical field
The utility model belongs to mechanical field, relates in particular to a kind of adaptation and drives top than the centrifugal end face of small diameter workpiece clamping.
Background technology
Along with the continuous progress of cutter material and machine tool technology, the speed of mainshaft of numerically controlled lathe has presented high day by day trend, and concerning the anchor clamps of clamping axial workpiece, it is a very important developing direction that end face drives top.Because, use end face to drive the top turning processing that can not only under a clamping condition, finish the axial workpiece all outer surfaces, reduce clamping times and shortened clamping non-cutting time.It is simple in structure that tailstock power top-closed structure end face drives top advantage, but to workpiece position preceding top be not fix but slide, this just will cause centering precision to decrease inevitably.Present centrifugal end face drives top, reasons such as site error owing to manufacturing, rigging error and the workpiece end face of anchor clamps, make that each centrifugal physique heart radius can not be consistent when work, thereby will cause extraneous vibration inevitably, this is particularly unfavorable to high-speed turning.
The utility model content
The purpose of this utility model is the problem that solves on the prior art, and it is tight power source, centre with centrifugal force that the spy provides a kind of, and the centrifugal end face that adapts to the clamping workpiece that higher centering precision requirement is arranged drives top.
For achieving the above object, the solution that adopts is that a kind of adaptation is top than the centrifugal end face driving of small diameter workpiece clamping, it mainly comprises clamp body, plunger, lever, flexible media, centrifugal weight, sprue, pusher dog, preceding top, the left chamber of three pusher dogs flexible media of packing into, three centrifugal weights are packed in the clamp body, sprue and centrifugal weight laterally are consolidated, three pusher dogs are around the axle center, be evenly distributed in the clamp body, be 120 ° angle mutually, three plungers link to each other with centrifugal weight respectively by floating lever rod, flexible media abrim between plunger and the pusher dog.
Three left chambeies that described three pusher dogs are equipped with flexible media communicate.
Be interference fit between described sprue and the centrifugal weight transverse holes, or with bonding, brazing mode is fixed.
Described centrifugal weight is designed to cylindrical.
Described flexible media pusher dog diameter hour, flexible media can adopt greases such as hydraulic oil or vaseline, but needs take seal approach in region of interest; When the pusher dog diameter was big, flexible media can adopt waste and old spherical steel ball.
The utility model advantage:
(1) centroid position of centrifugal body energy autobalance dynamically time the, and driving torque improves with the raising of the lathe speed of mainshaft, can adapt to the high-speed turning of axial workpiece preferably;
(2) adopt rigidity preceding top, can not only improve the centering precision to workpiece, and can improve the positional precision between the workpiece relevant surfaces;
(3) novel mechanism and the technology that adopted that cylindrical centrifugal body, the floating type lever of intermediate support, flexible media are all pressed etc., simple and compact for structure, anufacturability is good;
(4) not only can be applicable to numerically controlled lathe, also can be applicable to clamping axial workpiece on Hydraulic copying lathe and the engine lathe.
Description of drawings
Fig. 1 is structural representation of the present utility model;
Fig. 2 is left view of the present utility model;
Clamp body as shown in the figure 1; 2, plunger; 3, lever; 4, flexible media; 5, centrifugal weight; 6, sprue; 7 pusher dogs; 8, preceding top; 9, workpiece; 10, back centre.
The specific embodiment
Further specify the utility model below in conjunction with Figure of description.
As shown in the figure, jig Design has three pusher dogs (7), and three pusher dogs (7) are around the axle center, be evenly distributed in the clamp body (1), be 120 ° angle mutually, the left chamber of pusher dog (7) flexible media (4) of packing into, and three left chambeies that flexible media (4) is housed communicate; Three cylindrical centrifugal weights (5) being housed in the clamp body (1), can radially moving, be placed with sprue (6) in the centrifugal weight (5), is interference fit between sprue (6) and centrifugal weight (5) transverse holes, or with bonding, brazing mode is fixed; Three plungers (2) that can radially move are linked to each other with cylindrical centrifugal weight (5) respectively by the levers (3) of three point floatings, flexible media (4) abrim between plunger (2) and the pusher dog (7).Anchor clamps are connected by ring flange with main shaft, and workpiece (9) is located between preceding top (8) and consequent point (10), under the effect of tailstock power, are moved to the left, and contact with the right cutting edge of three pusher dogs (7).When rotating under the driving of clamp body at lathe spindle, cylindrical pouring weight (5) just radially throws away under action of centrifugal force.This centrifugal force acts on the plunger by lever (3), forces plunger to move to axis direction; Plunger (2) and then compressed flexible medium (4) make flexible media promote the motion of pusher dog (7) right; The cutting edge of pusher dog (7) right part just contacts with the left side of workpiece (9) and trace embeds wherein, rotates with clamp body (1) thereby drive workpiece (9).When beginning to add man-hour, just resist the cutting moment that is formed by cutting force by the driving torque that pusher dog (7) produces.
Claims (5)
1. an adaptation is top than the centrifugal end face driving of small diameter workpiece clamping, it mainly comprises clamp body (1), plunger (2), lever (3), flexible media (4), centrifugal weight (5), sprue (6), pusher dog (7), preceding top (8), it is characterized in that, the left chamber of three pusher dogs (7) flexible media (4) of packing into, three centrifugal weights (5) are packed in the clamp body, sprue (6) laterally is consolidated with centrifugal weight (5), three pusher dogs (7) are around the axle center, be evenly distributed in the clamp body (1), be 120 ° angle mutually, three plungers (2) link to each other with centrifugal weight (5) respectively by floating lever rod (3), flexible media (4) abrim between plunger and the pusher dog (7).
2. adaptation according to claim 1 is top than the centrifugal end face driving of small diameter workpiece clamping, it is characterized in that three left chambeies that three pusher dogs (7) are equipped with flexible media (4) communicate.
3. adaptation according to claim 1 drives toply than the centrifugal end face of small diameter workpiece clamping, it is characterized in that, be interference fit between sprue (6) and centrifugal weight (5) transverse holes, or with bonding, brazing mode is fixed.
4. adaptation according to claim 1 is top than the centrifugal end face driving of small diameter workpiece clamping, it is characterized in that described centrifugal weight (5) is designed to cylindrical.
5. adaptation according to claim 1 is top than the centrifugal end face driving of small diameter workpiece clamping, it is characterized in that described flexible media (4) can be steel ball, vaseline, liquid plastics or petroleum base hydraulic oil.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220737361 CN203170989U (en) | 2012-12-28 | 2012-12-28 | Centrifugal type end face driving centre suitable for clamping workpieces with small diameter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220737361 CN203170989U (en) | 2012-12-28 | 2012-12-28 | Centrifugal type end face driving centre suitable for clamping workpieces with small diameter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203170989U true CN203170989U (en) | 2013-09-04 |
Family
ID=49067743
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220737361 Expired - Fee Related CN203170989U (en) | 2012-12-28 | 2012-12-28 | Centrifugal type end face driving centre suitable for clamping workpieces with small diameter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203170989U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103769629A (en) * | 2014-01-24 | 2014-05-07 | 南通国盛精密机械有限公司 | Three-point fixation type lathe tailstock |
-
2012
- 2012-12-28 CN CN 201220737361 patent/CN203170989U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103769629A (en) * | 2014-01-24 | 2014-05-07 | 南通国盛精密机械有限公司 | Three-point fixation type lathe tailstock |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130904 Termination date: 20141228 |
|
| EXPY | Termination of patent right or utility model |