CN201744685U - Built-up mandrel for lathe - Google Patents
Built-up mandrel for lathe Download PDFInfo
- Publication number
- CN201744685U CN201744685U CN2010201913033U CN201020191303U CN201744685U CN 201744685 U CN201744685 U CN 201744685U CN 2010201913033 U CN2010201913033 U CN 2010201913033U CN 201020191303 U CN201020191303 U CN 201020191303U CN 201744685 U CN201744685 U CN 201744685U
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- Prior art keywords
- sleeve
- mandrel
- expansion sleeve
- built
- axle body
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Abstract
The utility model discloses a built-up mandrel for a lathe, which comprises a mandrel body, wherein, a conical part is arranged in the middle of the mandrel body, an expansion sleeve is sleeved outside the conical part, a taper sleeve is inserted into one end of the expansion sleeve, a taper sleeve hole is formed at the root of the taper sleeve, a threaded hole is formed on the mandrel body, a bolt is inserted into the threaded hole, the bolt enters the mandrel body through the taper sleeve hole, a first pin for preventing the taper sleeve from falling from the expansion sleeve is arranged at the front end of the conical part on the mandrel body, and a second pin for preventing the expansion sleeve from falling from the mandrel body is arranged at the rear end of the conical part on the mandrel body. The built-up mandrel is simple to use and convenient to install, and by virtue of the expansion sleeve, improves the machining precision and the processing efficiency of sleeve-type components.
Description
Technical field
The utility model relates to a kind of built-up mandrel, particularly relates to a kind of machining accuracy that can improve cover parts, and workpiece unloads the built-up mandrel that easy lathe is used.
Background technology
In the processing of cover parts, because the cover parts geometric accuracy has relatively high expectations, i.e. the axiality of endoporus and cylindrical; The depth of parallelism at two ends wants the design specialized axle could guarantee the processing geometric accuracy of cover parts usually.Normally used spindle specially, though structure is simple, the machining accuracy of part is low, volume is big, uses heavy inconvenient.
Generally all be that axle is designed to taper, tapering can make the axle volume reduce greatly, save raw material, but machining accuracy is low; The tapering I improves machining accuracy, but axle 1 ' volume is strengthened, and manufacturing cost increases.And shortcoming of this class axle ubiquity, i.e. workpiece 2 ' unload difficulty.Shown in Figure 1 in mandrel structure commonly used such as the accompanying drawing.
The utility model content
Technical problem to be solved in the utility model is, overcomes problems of the prior art, and a kind of lathe built-up mandrel is provided.
The utility model solves above-mentioned technical problem by following technical proposals: a kind of lathe built-up mandrel, it is characterized in that: described lathe comprises an axle body with built-up mandrel, be provided with a conus portion in the middle of the described axle body, expansion sleeve of described conus portion outer surface cover, the inner tapered sleeve that inserts of one end of described expansion sleeve, the root of described tapered sleeve is provided with the tapered sleeve hole, described axle body is provided with screwed hole, be inserted with screw in screwed hole, described screw passes described tapered sleeve hole and enters in the described axle body.
In one embodiment, the front end of conus portion is provided with first pin that prevents that tapered sleeve from coming off in the described expansion sleeve on the described axle body, and the rear end of conus portion is provided with second pin that prevents that described expansion sleeve from coming off from the axle body on the described axle body.
In another embodiment, described expansion sleeve is provided with a plurality of elongated slots that are used to expand, and described elongated slot is not axially connecting, and the elongated slot at two ends is interspersed.
In another embodiment, be with the circlip for shaft that a convenient described tapered sleeve unloads on the described screw.
In another embodiment, the axle of the conus portion rear end on the described axle body is provided with a nut that is used to block expansion sleeve, and the rear end axle of described nut is a cylinder.
Positive progressive effect of the present utility model is: the built-up mandrel that the lathe that the utility model provides is used has the following advantages:
The built-up mandrel that the lathe that the utility model relates to is used has improved the machining accuracy of cover parts by the effect of expansion sleeve, has improved the working (machining) efficiency of cover parts, uses installation simple and convenient.
Description of drawings
Fig. 1 is the structural representation of existing axle processing cover parts;
The lathe that Fig. 2 provides for the utility model structural representation of built-up mandrel;
The structural representation of the axle that Fig. 3 provides for the utility model;
The structural representation of the screw that Fig. 4 provides for the utility model;
Fig. 5 is the structural representation of the A direction of Fig. 4;
The expansion sleeve structural representation that Fig. 6 provides for the utility model;
Fig. 7 is the A-A direction structure schematic diagram of Fig. 6;
The tapered sleeve structural representation that Fig. 8 provides for the utility model.
The specific embodiment
Provide the utility model preferred embodiment below in conjunction with accompanying drawing, to describe the technical solution of the utility model in detail.Fig. 1 is the structural representation of existing axle processing cover parts; Referring to Fig. 1, mark 1 among the figure ' be axle, mark 2 ' be workpiece, present design generally all is that axle is designed to taper, tapering can make the axle volume reduce greatly, saving raw material, but machining accuracy is low; The tapering I improves machining accuracy, but axle 1 ' volume is strengthened, and manufacturing cost increases.And shortcoming of this class axle ubiquity, i.e. workpiece 2 ' unload difficulty.
The structural representation of the axle that Fig. 3 provides for the utility model, the lathe that Fig. 2 provides for the utility model structural representation of built-up mandrel, referring to Fig. 2 and 3, lathe comprises an axle body 1 with built-up mandrel, axle body 1 is seen Fig. 3, be provided with a conus portion 101 in the middle of the axle body 1, expansion sleeve 2 of conus portion 101 outer surfaces cover, the inner tapered sleeve 3 that inserts of one end of expansion sleeve 2, the root of tapered sleeve 3 is provided with tapered sleeve hole 301, be provided with screwed hole in the axle body 1, be inserted with screw 5 in screwed hole, screw 5 passes described tapered sleeve hole 301 and enters in the axle body 1.
The front end of conus portion is provided with first pin 4 that prevents that tapered sleeve 3 from coming off in the expansion sleeve 2 on the axle body 1, and the rear end of conus portion is provided with second pin 8 that prevents that described expansion sleeve 2 from coming off from axle body 1 on the axle body 1, as shown in Figure 2.
The expansion sleeve structural representation that Fig. 6 provides for the utility model; Fig. 7 is the A-A direction structure schematic diagram of Fig. 6; Expansion sleeve 2 is provided with a plurality of elongated slots that are used to expand 201, and elongated slot 201 is not axially connecting, and the elongated slot 201 at two ends is interspersed, shown in Fig. 6 and 7.
The structural representation of the screw that Fig. 4 provides for the utility model, Fig. 5 is the structural representation of the A direction of Fig. 4; Screw 5 is with the circlip for shaft 6 that a convenient described tapered sleeve 3 unloads on (as shown in Figure 4).
The axle of conus portion 101 rear ends on the axle body 1 is provided with a nut 7 that is used to block expansion sleeve, and the rear end axle of nut 7 is a cylinder.
During use, earlier axle body 1 is fixed on the lathe spindle by pull bar 11 and plate washer 10, locking nut 7, after locking nut 7 and other each part are in place, processed workpiece is installed on the expansion sleeve 2.Because expansion sleeve 2 cylindricals and workpiece endoporus have little gap, workpiece can be installed smoothly.Rotating screw 5 then, drive tapered sleeve 3 and move inwards, and tapered sleeve 3 promotes expansion sleeve 2 when moving inwards and also moves inwards, outwards expands under the effect of the conical surface, thereby workpiece is fixed, and just can carry out the processing of cylindrical and end face to workpiece.
After workpiece processes, rotating screw 5 in the opposite direction, under the effect of circlip for shaft 6, driving tapered sleeve outwards moves, tapered sleeve outwards moves the tapered sleeve and expansion sleeve 2 conical surfaces is disengaged, expansion sleeve 2 external diameters shrink, and workpiece just can unload, and also can workpiece be unloaded from expansion sleeve 2 by the rotation of nut 5.Second pin 8 of front can prevent that expansion sleeve 2 from coming off from axle, and first pin 4 of back can prevent that tapered sleeve from coming off from expansion sleeve 2, makes whole frock remain an integral body, makes things convenient for the loading and unloading of workpiece, uses more convenient and quicker.
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; these changes and improvements all fall in claimed the utility model scope, and the claimed scope of the utility model is defined by appending claims and equivalent thereof.
Claims (5)
1. lathe built-up mandrel, it is characterized in that: described lathe comprises an axle body (1) with built-up mandrel, be provided with a conus portion (101) in the middle of the described axle body (1), described conus portion (a 101) outer surface cover expansion sleeve (2), the inner tapered sleeve (3) that inserts of one end of described expansion sleeve (2), the root of described tapered sleeve (3) is provided with tapered sleeve hole (301), described axle body (1) is provided with screwed hole, be inserted with screw (5) in screwed hole, described screw (5) passes described tapered sleeve hole (301) and enters in the described axle body (1).
2. lathe built-up mandrel according to claim 1, it is characterized in that: the front end that described axle body (1) is gone up conus portion is provided with first pin (4) that prevents that tapered sleeve (3) from coming off in the described expansion sleeve (2), and the rear end that described axle body (1) is gone up conus portion is provided with second pin (8) that prevents that described expansion sleeve (2) from coming off from axle body (1).
3. lathe built-up mandrel according to claim 1 and 2 is characterized in that: described expansion sleeve (2) is provided with a plurality of elongated slots that are used to expand (201), and described elongated slot (201) is not axially connecting, and the elongated slot at two ends (201) is interspersed.
4. lathe built-up mandrel according to claim 1 is characterized in that: be with the circlip for shaft (6) that a convenient described tapered sleeve (3) unloads on the described screw (5).
5. lathe built-up mandrel according to claim 1 and 2 is characterized in that: the axle of conus portion (101) rear end on the described axle body (1) is provided with a nut (7) that is used to block expansion sleeve, and the rear end axle of described nut (7) is a cylinder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201913033U CN201744685U (en) | 2010-05-11 | 2010-05-11 | Built-up mandrel for lathe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201913033U CN201744685U (en) | 2010-05-11 | 2010-05-11 | Built-up mandrel for lathe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201744685U true CN201744685U (en) | 2011-02-16 |
Family
ID=43579355
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201913033U Expired - Fee Related CN201744685U (en) | 2010-05-11 | 2010-05-11 | Built-up mandrel for lathe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201744685U (en) |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102847969A (en) * | 2012-09-17 | 2013-01-02 | 江苏飞船股份有限公司 | Double-end core expansion type mandrel fixture |
| CN103506645A (en) * | 2013-09-30 | 2014-01-15 | 江苏南铸科技股份有限公司 | Self-locating locking tool for cylindrical workpiece |
| CN103521798A (en) * | 2013-11-04 | 2014-01-22 | 无锡市聚英机械制造有限公司 | Expansion type adjustable core rod |
| CN104368827A (en) * | 2014-10-28 | 2015-02-25 | 重庆永达精密机械有限公司 | Chamfering machine obtained by improving lathe |
| CN105703531A (en) * | 2016-03-16 | 2016-06-22 | 广州可鼎自动化设备有限公司 | Biconical expansion locking mechanism |
| CN105921775A (en) * | 2016-07-11 | 2016-09-07 | 合肥凯泉电机电泵有限公司 | Double entry pump impeller expanding mandrel tool |
| CN107096936A (en) * | 2017-06-20 | 2017-08-29 | 安徽祥利机械有限公司 | A kind of ringfeder device that neck bush is sealed for motorcycle |
| CN109014267A (en) * | 2018-10-20 | 2018-12-18 | 贵州航铄工业股份有限公司 | A kind of fixed device of thin-walled parts aeroelasticity with threaded hole |
| CN109550989A (en) * | 2018-12-24 | 2019-04-02 | 平湖市职业中学 | A kind of motor casing workpiece machining clamp |
| CN110774849A (en) * | 2019-11-19 | 2020-02-11 | 东风商用车有限公司 | Plate spring fixed end support assembly and assembling method thereof |
-
2010
- 2010-05-11 CN CN2010201913033U patent/CN201744685U/en not_active Expired - Fee Related
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102847969A (en) * | 2012-09-17 | 2013-01-02 | 江苏飞船股份有限公司 | Double-end core expansion type mandrel fixture |
| CN103506645A (en) * | 2013-09-30 | 2014-01-15 | 江苏南铸科技股份有限公司 | Self-locating locking tool for cylindrical workpiece |
| CN103506645B (en) * | 2013-09-30 | 2016-03-30 | 江苏南铸科技股份有限公司 | The self-positioning locking frock of cylindrical workpiece |
| CN103521798A (en) * | 2013-11-04 | 2014-01-22 | 无锡市聚英机械制造有限公司 | Expansion type adjustable core rod |
| CN104368827A (en) * | 2014-10-28 | 2015-02-25 | 重庆永达精密机械有限公司 | Chamfering machine obtained by improving lathe |
| CN105703531A (en) * | 2016-03-16 | 2016-06-22 | 广州可鼎自动化设备有限公司 | Biconical expansion locking mechanism |
| CN105703531B (en) * | 2016-03-16 | 2018-01-09 | 广州可鼎自动化设备有限公司 | Bipyramid expands retaining mechanism |
| CN105921775A (en) * | 2016-07-11 | 2016-09-07 | 合肥凯泉电机电泵有限公司 | Double entry pump impeller expanding mandrel tool |
| CN107096936A (en) * | 2017-06-20 | 2017-08-29 | 安徽祥利机械有限公司 | A kind of ringfeder device that neck bush is sealed for motorcycle |
| CN109014267A (en) * | 2018-10-20 | 2018-12-18 | 贵州航铄工业股份有限公司 | A kind of fixed device of thin-walled parts aeroelasticity with threaded hole |
| CN109550989A (en) * | 2018-12-24 | 2019-04-02 | 平湖市职业中学 | A kind of motor casing workpiece machining clamp |
| CN110774849A (en) * | 2019-11-19 | 2020-02-11 | 东风商用车有限公司 | Plate spring fixed end support assembly and assembling method thereof |
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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: 20110216 Termination date: 20110511 |