CN201684930U - Automatic expansion center device - Google Patents
Automatic expansion center device Download PDFInfo
- Publication number
- CN201684930U CN201684930U CN2010202050642U CN201020205064U CN201684930U CN 201684930 U CN201684930 U CN 201684930U CN 2010202050642 U CN2010202050642 U CN 2010202050642U CN 201020205064 U CN201020205064 U CN 201020205064U CN 201684930 U CN201684930 U CN 201684930U
- Authority
- CN
- China
- Prior art keywords
- positioning sleeve
- automatic expansion
- workpiece
- jaw
- grip jaws
- 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 discloses an automatic expansion center device, which comprises a plurality of grip jaws, a center having two ends processed into cones and matched with slopes of the grip jaws and a machine tool tail seat conical hole, a positioning sleeve used for installing the grip jaws and having the end provided with a threaded hole, and a retaining cover matched with the positioning sleeve in use. The grip jaws are elastically installed inside a plurality of square holes symmetrically arranged on the positioning sleeve, one end of the center is disposed inside the positioning sleeve through the retaining cover and contacts with the grip jaws, and the other end is installed inside the machine tool tail seat conical hole. The grip jaws elastically contact with one end of the center so that the center is tightly matched with a workpiece, thereby greatly reducing vibration of the workpiece during processing, increasing precision of the workpiece during processing and increasing processing efficiency of the workpiece.
Description
Technical field:
The utility model relates to field of machining, relates in particular to a kind of Finial device that processing positions to sleeve part that is used for.
Background technology:
In the processing of sleeve part, because sleeve part is generally longer, add the tailstock centre of tail end by lathe to be held out against man-hour and process, just can prevent to overlap similar part work in-process Workpiece vibration, guaranteed that like this sleeve part can guarantee certain precision in process, normally used in the prior art special-purpose apotting spindle structure is as shown in Figure 1: generally will install 100 structures that are designed to as Fig. 1, promptly be installed on the tailstock tool with common top body 101, with a centre one circular hole is being arranged, cylindrical becomes fixed head 102 roof pressures of the conical surface on workpiece 103, but workpiece 103 is adding man-hour, the cutter of lathe easily and frock bump, workpiece 103 precision that process like this are low, the percent defective height.
Though this apparatus structure is simple, the element precision that processes is low, and the percent defective height can't satisfy the needs of actual processing.
The utility model content:
The purpose of this utility model is that to be used for remedying the element precision that prior art processes low, the deficiency that percent defective is high, and it is top to provide a kind of and improve part processing precision, reduce the automatic expansion of percent defective.
To achieve these goals, the technical solution of the utility model is as follows:
A kind of automatic expansion Finial device, this device comprises that several jaws, two ends all are processed into top body, that cone cooperates with jaw inclined-plane and tailstock tool taper hole respectively and are used to install the positioning sleeve and one and the door that is used of positioning sleeve that described several jaws and its end have screwed hole, described jaw elasticity is installed in the symmetrically arranged a plurality of square holes of positioning sleeve, one end of described top body is arranged in the positioning sleeve by door, and with the jaw Elastic Contact, its in addition end be installed in the tailstock tool taper hole.
Described positioning sleeve cylindrical is slightly less than the workpiece endoporus, and is evenly distributed with three square holes along circumference in the middle of the positioning sleeve.
Described door is installed in the screw of positioning sleeve end by bolting.
Described jaw cylindrical is processed with a square groove that is used for the mounting spring circle.
A kind of automatic expansion Finial device of the utility model, Elastic Contact by jaw and top body one end makes Finial device tightly cooperate in workpiece, has significantly reduced the vibration of workpiece in process, increase the precision of workpiece work in-process, improved the working (machining) efficiency of workpiece.
Description of drawings:
Further specify the utility model below in conjunction with the drawings and specific embodiments.
Fig. 1 is a prior art Finial device machining state structural representation
Fig. 2 is the utility model structural representation
Fig. 3 is the front view of positioning sleeve in the utility model
Fig. 4 is the left view of positioning sleeve in the utility model
Fig. 5 is the schematic diagram of the utility model in practicing
The specific embodiment:
For technological means, creation characteristic that the utility model is realized, reach purpose and effect is easy to understand, below in conjunction with concrete diagram, further set forth the utility model.
As shown in Figure 2: a kind of automatic expansion Finial device, this device 200 comprises that several jaws 302, two ends all are processed into top body 201, the top body 201 that cone cooperates with jaw 302 inclined-planes and tailstock tool taper hole respectively and are divided into left top body 2012 and right top body 2011, connector diameter between a left side top body 2012 and the right top body 2011 is less than top body 2012 in a left side and right top body 2011, and its just in time with the endoporus of door 301 to being slidingly matched.One is used to install the positioning sleeve 300 and one and the door 301 that is used of positioning sleeve 300 that described several jaws 302 and its end have screwed hole, jaw 302 elasticity are installed in positioning sleeve 300 symmetrically arranged a plurality of square holes 3001, the left top body 2012 of top body 201 is arranged in the positioning sleeve 300 by door 301, and with jaw 302 Elastic Contact, right top body 2011 is fixedly installed in the tailstock tool taper hole.
As shown in Figure 3 and Figure 4: positioning sleeve 300 cylindricals are slightly less than workpiece 400 endoporus, and be evenly distributed with three square holes 3001 along circumference in the middle of the positioning sleeve 300, end at positioning sleeve 300 is provided with the screwed hole 3041 that is used for construction bolt 304, in the present embodiment screwed hole 3041 symmetries be provided with four, like this can be with door 301 firm being fixed on the positioning sleeve 300.The cylindrical of jaw 302 is processed with a square groove that is used for mounting spring circle 303, and turn 303 is installed in the square groove, realizes the effect that its elastic compression stretches, and the effect by turn elastic force is with jaw 302 workpiece pressings.
For can clearer this device of description the application in process, describe below in conjunction with the using method of this device, reference is shown in Figure 5:
At first the top body 2011 in the right side is installed on the tailstock tool in use, rotating the tailstock handwheel then travels forward top body 201, when the top body 2012 drive positioning sleeves 300 in a left side are run into the seam end face of workpiece 400 endoporus, positioning sleeve 300 stops to travel forward, this moment, top body 201 moved forward, the conical surface of its left top body 2012 and jaw 302 contacts, and promote jaw 302 and outwards move, thereby with part stretching firmly.Completion of processing is rotated the tailstock handwheel top body 201 is retreated, and the left top body 2012 of top body 201 and jaw 302 disengages, and under the turn effect, jaw 302 withdrawals and workpiece 400 disengage, thereby withdraw from workpiece.
More than show 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 the foregoing description and the 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 (4)
1. automatic expansion Finial device, it is characterized in that, this device comprises that several jaws, two ends all are processed into top body, that cone cooperates with jaw inclined-plane and tailstock tool taper hole respectively and are used to install the positioning sleeve and one and the door that is used of positioning sleeve that described several jaws and its end have screwed hole, described jaw elasticity is installed in the symmetrically arranged a plurality of square holes of positioning sleeve, one end of described top body is arranged in the positioning sleeve by door, and with the jaw Elastic Contact, its in addition end be installed in the tailstock tool taper hole.
2. a kind of automatic expansion Finial device according to claim 1 is characterized in that described positioning sleeve cylindrical is slightly less than the workpiece endoporus, and is evenly distributed with three square holes along circumference in the middle of the positioning sleeve.
3. a kind of automatic expansion Finial device according to claim 1 is characterized in that described door is installed in the screw of positioning sleeve end by bolting.
4. a kind of automatic expansion Finial device according to claim 1 is characterized in that, described jaw cylindrical is processed with a square groove that is used for the mounting spring circle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202050642U CN201684930U (en) | 2010-05-25 | 2010-05-25 | Automatic expansion center device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202050642U CN201684930U (en) | 2010-05-25 | 2010-05-25 | Automatic expansion center device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201684930U true CN201684930U (en) | 2010-12-29 |
Family
ID=43373220
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010202050642U Expired - Fee Related CN201684930U (en) | 2010-05-25 | 2010-05-25 | Automatic expansion center device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201684930U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103894641A (en) * | 2014-04-16 | 2014-07-02 | 江西江铃底盘股份有限公司 | Outer-ejection-type inner expansion clamping sleeve |
| CN105252288A (en) * | 2015-11-02 | 2016-01-20 | 北京旋安特传动技术开发有限公司 | Numerical control turning fixture for annular sealing groove of rear-jacking type gas or liquid valve body |
| CN106363423A (en) * | 2015-07-20 | 2017-02-01 | 安徽红星阀门有限公司 | Processing clamp of thin-wall rotation work piece |
| CN108381254A (en) * | 2018-05-18 | 2018-08-10 | 浙江屹立机器人科技有限公司 | A kind of clamping device for oblique lathe bed set class puncher |
-
2010
- 2010-05-25 CN CN2010202050642U patent/CN201684930U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103894641A (en) * | 2014-04-16 | 2014-07-02 | 江西江铃底盘股份有限公司 | Outer-ejection-type inner expansion clamping sleeve |
| CN106363423A (en) * | 2015-07-20 | 2017-02-01 | 安徽红星阀门有限公司 | Processing clamp of thin-wall rotation work piece |
| CN105252288A (en) * | 2015-11-02 | 2016-01-20 | 北京旋安特传动技术开发有限公司 | Numerical control turning fixture for annular sealing groove of rear-jacking type gas or liquid valve body |
| CN108381254A (en) * | 2018-05-18 | 2018-08-10 | 浙江屹立机器人科技有限公司 | A kind of clamping device for oblique lathe bed set class puncher |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20101229 Termination date: 20110525 |