CN202934152U - Dynamic splint - Google Patents
Dynamic splint Download PDFInfo
- Publication number
- CN202934152U CN202934152U CN 201220273070 CN201220273070U CN202934152U CN 202934152 U CN202934152 U CN 202934152U CN 201220273070 CN201220273070 CN 201220273070 CN 201220273070 U CN201220273070 U CN 201220273070U CN 202934152 U CN202934152 U CN 202934152U
- Authority
- CN
- China
- Prior art keywords
- chuck
- sleeve
- base body
- bolt
- claw
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model provides a dynamic splint which comprises a chunk base body, wherein a plurality of claw heads are fixed on the end surface of the chunk base body along the circumference, a conical hole is arranged at the center of the chunk base body, and a chunk wedge center is filled in the conical hole; the claw heads are in sliding connection with the chunk wedge center, the contact surfaces are inclined surfaces, and the inclined direction of the inclined surfaces is opposite to the taper direction of the conical hole; and a connection mechanism is fixed on the chunk wedge center and connected with a driving device, and workpieces can be clamped when the driving device tensions the connection mechanism. Clamping force of the splint can be ensured by adopting the dynamic splint.
Description
Technical field
The utility model relates to the machine tooling field, specifically, relates to a kind of power chuck.
Background technology
By its rotation of main driven by motor, workpiece will must rely on fixture with the spindle synchronous rotation to machine tool chief axis take main spindle box as matrix, and (chuck) chuck that Here it is is commonly called as, chuck are combined closely with transition disc and main shaft end face and reached synchronous rotary.What lathe generally used now is all mechanical chuck, and mechanical chuck is comprised of chuck body, catching fluted disc and clamping device.With regard to three-jaw self-centering chuck, the rotation by fluted disc of three claws is workpiece fixedly on chuck.This kind chuck is fairly simple cheap, comparatively commonly used.But a lot of drawbacks is also arranged, for example clamping force less-owing to being by manually applying power, the clamping force to the workpiece demand that can reach is unknown; Pretightning force-pretightning force is the power that applies in order to prevent that clamping device is loosening, and the mechanical chuck pretightning force is also to use boosting-rod to rotate some angles by the people when the clamping work pieces more.Be High Rotation Speed and cutting in process due to workpiece, suffered axial force and radial cutting force are very large, very possible like this loosening on chuck of workpiece that cause, and the little loosening size of cutting of may causing is inaccurate; The large loosening workpiece production development accident that comes off that may cause.Concentricity-above mention mechanical chuck centering and joined at the center with the claw turn by fluted disc, the motion that deck drives claw is that the transmission against screw thread reaches, for claw is convenient to dismounting, gapped between threaded engagement, in use wearing and tearing afterwards are essential, and concentricity can't guarantee.
The utility model content
The technical problems to be solved in the utility model is, the deficiency for existing power chuck exists provides a kind of improved power chuck, and it can guarantee clamping force and the handled easily of chuck.
For solving the problems of the technologies described above, the technical solution adopted in the utility model is: a kind of power chuck, comprise chuck base body, and be fixed with several pawl heads along circumference on described chuck base body end face, wherein said chuck base body center has bellmouth, and the chuck wedge heart is housed in described bellmouth; Described pawl head and the chuck wedge heart are slidably connected, and its contact-making surface is the inclined-plane, and the incline direction on described inclined-plane is opposite with the taper direction of bellmouth; Described chuck wedge is fixed with bindiny mechanism in the heart, and described bindiny mechanism is connected with drive unit, when drive unit is strained bindiny mechanism, but clamping work pieces.
Preferably, described drive unit is hydraulic jack.
Preferably, described bindiny mechanism comprises sleeve, and the described chuck wedge heart has centre bore, and described sleeve is threaded connection and is fixed in centre bore, in described sleeve, sleeve bolt is housed, and sleeve is fixedly connected with hydraulic jack by sleeve bolt.
Preferably, described pawl head comprises deck and claw, and described deck is connected by connecting bolt with claw, and described deck and claw contact-making surface are for dredging the shape flank of tooth.
Preferably, described deck has limited impression away from claw one end, on described chuck base body, locating part is housed, and described locating part extends at least partially in limited impression.
Preferably, described locating part is caging bolt, and described caging bolt passes chuck base body and extends in limited impression.
Preferably, described sleeve has at least one pre-tieholen near hydraulic jack one end, and described pre-tieholen is in-built preloading spring; Also be fixed with on sleeve bolt between described hydraulic jack and sleeve and cap, also the end face of cap is against on preloading spring.
Preferably, the first jackscrew of at least one is housed on described and cap, described the first jackscrew withstands on sleeve bolt.
Preferably, described chuck base body is equipped with dustproof end cap near an end of pawl head, and described dustproof end cap is fixed on chuck base body.
Preferably, the described chuck wedge heart also is provided with boss away from dustproof end cap one end, and described boss is provided with the second jackscrew of at least one, and described the second jackscrew withstands on sleeve.
Implement power chuck of the present utility model, have following beneficial effect: drive that bindiny mechanism pulls the chuck wedge heart and clamping work pieces has guaranteed clamping force by drive unit.Drive by hydraulic jack, it is convenient to control.The thin shape flank of tooth of deck and claw can guarantee that bonding strength and claw and workpiece are concentric.Limited impression is combined with locating part, can determine the extreme position of the chuck wedge heart, is unlikely to the chuck wedge heart and is drawn out.And preloading spring on cap, can guarantee the pretightning force of sleeve.First, second jackscrew can guarantee the radial position of sleeve bolt and sleeve, prevents its radial displacement.Dustproof end cap can guarantee the working environment of this chuck, extends the service life of chuck.
Description of drawings
The utility model is described in further detail below in conjunction with drawings and Examples, in accompanying drawing:
Fig. 1 is cross-sectional view of the present utility model.
In figure, 1, chuck base body; 2, the chuck wedge heart; 3, deck; 4, claw; 5, sleeve; 6, sleeve bolt; 7 and cap; 8, boss; 9, the second jackscrew; 10, bellmouth; 11, the first jackscrew; 12, dustproof end cap; 13, limited impression; 14, caging bolt; 15, preloading spring; 16, hydraulic jack; 17, dredge the shape flank of tooth.
The specific embodiment
In order to make the purpose of this utility model, technical scheme and advantage clearer, below in conjunction with embodiment and accompanying drawing, the utility model is further described.
For sake of convenience, the direction to that indicated in the drawings of direction described in literary composition is consistent, but this direction is not construed as limiting structure of the present utility model.
As can be seen from Figure 1, power chuck of the present utility model comprises chuck base body 1, along the circumferential direction be fixed with several pawl heads on the end face of chuck base body 1, this chuck base body 1 center has bellmouth 10, the diameter of these bellmouth 10 close first ends of pawl is equipped with the chuck wedge heart 2 less than the diameter away from the first end of pawl in bellmouth 10.Pawl head and the chuck wedge heart 2 are for being slidably connected, and its contact-making surface is the inclined-plane, and the incline direction on this inclined-plane is opposite with the taper direction of above-mentioned bellmouth 10, and namely the right-hand member on inclined-plane is higher than left end.The chuck wedge heart 2 is connected with drive unit by bindiny mechanism, and bindiny mechanism comprises sleeve 5, has the centre bore (not shown) in the chuck wedge heart 2; With external screw thread, have internal thread in centre bore on sleeve 5, sleeve 5 is threaded connection and is fixed on the chuck wedge heart 2.Sleeve 5 endoporus are step-like, in sleeve 5 endoporus, sleeve bolt 6 are housed, and by sleeve bolt 6, sleeve 5 are connected with drive unit, and when starting drive unit, drive unit buckle bolt 6 can be realized the function of clamping work pieces.Drive unit can be selected common hydraulic jack 16 or other drive systems.
The pawl head adopts separate type, and namely the pawl head comprises deck 3 and claw 4, all has the screwed hole (not shown) on deck 3 and claw 4, and deck 3 is fixedly connected with by the connecting bolt (not shown) in screwed hole with claw 4.Deck 3 is preferably the thin shape flank of tooth 17 with the contact-making surface of claw 4, can play anti-skidding effect like this, has further guaranteed the compactness that deck 3 is connected with claw 4.Simultaneously, when the screwed hole diameter during greater than the connecting bolt diameter, mobile claw 4 makes itself and deck 3 several thin shape teeth that stagger, and tightens that connecting bolt is fixing get final product, and this kind separate type pawl head can be in the effect that guarantees play on the basis of deck 3 and claw 4 bonding strengths dozen eccentric orfice.
Deck 3 is that left end has limited impression 13 away from claw 4 one ends, on chuck base body 1, locating part is housed, locating part extends at least partially in limited impression 13, and the locating part shown in figure is caging bolt 14, and caging bolt 14 passes chuck base body 1 and extends in limited impression 13.When hydraulic jack 16 passes through sleeve bolt 6 buckle 5, the chuck wedge heart 2 is to left movement, because the chuck wedge heart 2 has the inclined-plane, when the chuck wedge heart 2 during to left movement claw 4 move upward, when moving to caging bolt 14 position, caging bolt 14 stops the radial motion of deck 3.Coordinate caging bolt 14 by limited impression 13, can guarantee the extreme position of the chuck wedge heart 2, be unlikely to the chuck wedge heart 2 and pulled out in chuck base body 1 by overtighten.
Sleeve 5 has at least one pre-tieholen (not shown) near hydraulic jack 16 1 ends, and pre-tieholen is in-built preloading spring 15; Also be fixed with on sleeve bolt 6 between hydraulic jack 16 and sleeve 5 and cap 7, also the end face of cap 7 is against on preloading spring 15.This preloading spring 15 and also cap 7 combinations can play the effect of axial pretightening to sleeve 5, guaranteed the connection compactness.And the first jackscrew 11, the first jackscrews 11 that at least one is housed on cap 7 withstand on sleeve bolt 6, and this jackscrew can prevent the radial displacement of sleeve bolt 6.
Chuck base body 1 is equipped with dustproof end cap 12 near an end of pawl head, and dustproof end cap 12 is threaded connection (not shown) and is fixed on chuck base body 1.
The chuck wedge heart 2 also is provided with boss 8 away from the first end of pawl, and the second jackscrew 9, the second jackscrews 9 that boss 8 is provided with at least one withstand on sleeve 5, and the second jackscrew 9 can prevent the radial displacement of sleeve 5.
Above demonstration and described basic principle of the present utility model and principal character and advantage of the present utility model.The technical staff of the industry should understand; the utility model is not restricted to the described embodiments; that describes in above-described embodiment and specification just illustrates principle of the present utility model; under the prerequisite that does not break away from the utility model spirit and scope; the utility model also has various changes and modifications, and these changes and improvements all fall in claimed the utility model scope.The claimed scope of the utility model is defined by appending claims and equivalent thereof.
Claims (10)
1. a power chuck, comprise chuck base body, is fixed with several pawl heads along circumference on described chuck base body end face, it is characterized in that: described chuck base body center has bellmouth, and the chuck wedge heart is housed in described bellmouth; Described pawl head and the chuck wedge heart are slidably connected, and its contact-making surface is the inclined-plane, and the incline direction on described inclined-plane is opposite with the taper direction of bellmouth; Described chuck wedge is fixed with bindiny mechanism in the heart, and described bindiny mechanism is connected with drive unit, when drive unit is strained bindiny mechanism, but clamping work pieces.
2. power chuck according to claim 1, it is characterized in that: described drive unit is hydraulic jack.
3. power chuck according to claim 2, it is characterized in that: described bindiny mechanism comprises sleeve, the described chuck wedge heart has centre bore, described sleeve is threaded connection and is fixed in centre bore, in described sleeve, sleeve bolt is housed, sleeve is fixedly connected with hydraulic jack by sleeve bolt.
4. power chuck according to claim 3, it is characterized in that: described pawl head comprises deck and claw, and described deck is connected by connecting bolt with claw, described deck and claw contact-making surface are for dredging the shape flank of tooth.
5. power chuck according to claim 4, it is characterized in that: described deck has limited impression away from claw one end, on described chuck base body, locating part is housed, and described locating part extends at least partially in limited impression.
6. power chuck according to claim 5, it is characterized in that: described locating part is caging bolt, and described caging bolt passes chuck base body and extends in limited impression.
7. power chuck according to claim 6 is characterized in that: described sleeve has at least one pre-tieholen near hydraulic jack one end, and described pre-tieholen is in-built preloading spring; Also be fixed with on sleeve bolt between described hydraulic jack and sleeve and cap, also the end face of cap is against on preloading spring.
8. power chuck according to claim 7 is characterized in that: the first jackscrew of at least one is housed on described and cap, and described the first jackscrew withstands on sleeve bolt.
9. power chuck according to claim 1 is characterized in that: described chuck base body is equipped with dustproof end cap near an end of pawl head, and described dustproof end cap is fixed on chuck base body.
10. power chuck according to claim 9, it is characterized in that: the described chuck wedge heart also is provided with boss away from dustproof end cap one end, and described boss is provided with the second jackscrew of at least one, and described the second jackscrew withstands on sleeve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220273070 CN202934152U (en) | 2012-06-11 | 2012-06-11 | Dynamic splint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220273070 CN202934152U (en) | 2012-06-11 | 2012-06-11 | Dynamic splint |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202934152U true CN202934152U (en) | 2013-05-15 |
Family
ID=48318413
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220273070 Expired - Fee Related CN202934152U (en) | 2012-06-11 | 2012-06-11 | Dynamic splint |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202934152U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108188424A (en) * | 2018-02-24 | 2018-06-22 | 无锡金红鹰工业自动化有限公司 | A kind of oild chuck clamping device |
| CN109732112A (en) * | 2018-12-03 | 2019-05-10 | 广州市昊志机电股份有限公司 | A kind of high-precision high-speed chuck mode fixture convenient for automatic exchange |
-
2012
- 2012-06-11 CN CN 201220273070 patent/CN202934152U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108188424A (en) * | 2018-02-24 | 2018-06-22 | 无锡金红鹰工业自动化有限公司 | A kind of oild chuck clamping device |
| CN108188424B (en) * | 2018-02-24 | 2024-01-05 | 无锡金红鹰工业自动化有限公司 | Hydraulic chuck clamping device |
| CN109732112A (en) * | 2018-12-03 | 2019-05-10 | 广州市昊志机电股份有限公司 | A kind of high-precision high-speed chuck mode fixture convenient for automatic exchange |
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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: 20130515 Termination date: 20160611 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |