CN203791659U - Self-adaptive expansion sleeve clamp - Google Patents

Self-adaptive expansion sleeve clamp Download PDF

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Publication number
CN203791659U
CN203791659U CN201320727352.8U CN201320727352U CN203791659U CN 203791659 U CN203791659 U CN 203791659U CN 201320727352 U CN201320727352 U CN 201320727352U CN 203791659 U CN203791659 U CN 203791659U
Authority
CN
China
Prior art keywords
self
adapting
drill holder
sleeve clamp
mandrel
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
Application number
CN201320727352.8U
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Chinese (zh)
Inventor
谢建华
刘成平
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Chongqing Qingping Machinery Factory
Original Assignee
Chongqing Qingping Machinery Factory
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Chongqing Qingping Machinery Factory filed Critical Chongqing Qingping Machinery Factory
Priority to CN201320727352.8U priority Critical patent/CN203791659U/en
Application granted granted Critical
Publication of CN203791659U publication Critical patent/CN203791659U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

The utility model discloses a self-adaptive expansion sleeve clamp which comprises a core shaft, a reducing sleeve and a compression nut, wherein the core shaft is provided with a taper surface, the reducing sleeve is sleeved with the taper surface, and the compression nut is used for compressing the reducing sleeve to enable the reducing sleeve to slide along the axial direction of the core shaft. A groove is formed in the outer wall of the reducing sleeve, a plurality of supporting blocks are formed on the outer wall of the reducing sleeve and isolated by the groove, and a small supporting surface is formed on each supporting block. After the clamp clamps workpeices, the supporting blocks bearing relatively large force can be compressed radially to adapt to small changes of hole diameters of several workpieces automatically, a certain pressure is generated between the supporting blocks and the workpeices, contact force-bearing area between the surface of the outer wall of the reducing sleeve and the workpieces is enlarged, force-bearing uniformity is improved, the workpieces can be positioned stably and reliably, and no independent axial positioning press cover structure is needed. Compared with the existing expansion sleeve clamp, the self-adaptive expansion sleeve clamp is simple in structure, light in weight and capable of reducing manufacturing cost, labor intensity of operators and clamping steps, and increasing clamping efficiency.

Description

Self-adapting bulging sleeve clamp
Technical field
The utility model relates to a kind of fixture, relates in particular to a kind of self-adapting bulging sleeve clamp.
Background technology
Fixture is in machining, to be used for rapid fastening workpiece to make lathe, cutter, workpiece keeps the process unit of correct relative position, indispensable parts, along with machine tool technology is to high speed, efficiently, accurate, the development of intelligence direction, also proposed high-precision to fixture, efficiently, economic dispatch requirement, in prior art, for the fixture with the disk-like accessory (as gear) of centre bore common be expansion set mandrel, expansion set mandrel generally comprises the expansion core and the drill holder that are slidably matched by taper surface, compressing drill holder by clamping nut makes it produce radial deformation and then workpiece is positioned, expansion set mandrel can adapt within the specific limits different inner hole of workpiece sizes and position, but it is amplification relation that the tension force that expansion set mandrel produces and operating personnel put on the pretightning force of clamping nut, manually clamping pretightning force is difficult to control, easily cause locate failure, existing drill holder outer wall surface is the face of cylinder matching with inner hole of workpiece surface simultaneously, coordinate location with inner hole of workpiece by whole surface, and be subject to the restriction of machining accuracy, in actual processing, cannot realize drill holder outer wall surface contacts with inner hole of workpiece face entirety, conventionally all can produce local clamping point and gap, although the radial location error to workpiece can be controlled in allowed band, but to the axial location less stable of workpiece, add and easily cause man-hour workpiece to trackslip and slippage, and avoid above-mentioned phenomenon that axial location gland also need to be set in expansion set mandrel one end conventionally, workpiece is carried out to axial grip location, cause clamp structure complexity, cost of manufacture is higher, many step clamping workpiece operations simultaneously, affect greatly clamping workpiece and production efficiency, fixture overall weight increases, and uses inconvenience, has increased operating personnel's labour intensity.
Therefore, in order addressing the above problem, need to be improved existing expansion set core shaft structure, to be simplified clamp structure, be saved manufacturing cost, be alleviated clamp weight, be reduced labor intensity of operating staff, be reduced clamping step simultaneously, be improved clamping efficiency.
Utility model content
In view of this, the purpose of this utility model is to provide a kind of self-adapting bulging sleeve clamp, compared with existing expansion sleeve clamp, simple in structure, lightweight, can save fixture manufacturing cost, reduce labor intensity of operating staff, can also reduce clamping step, be beneficial to and improve clamping efficiency simultaneously.
Self-adapting bulging sleeve clamp of the present utility model, comprise be provided with tapering face mandrel, be set in the drill holder of mandrel tapering face and make it along mandrel clamp nut in axial sliding for compressing drill holder; Described drill holder outer wall is provided with groove;
Further, described groove comprises the cannelure arranging around drill holder excircle direction;
Further, described cannelure is axially evenly arranged multiple along drill holder;
Further, described groove also comprises the straight trough axially arranging along drill holder;
Further, described straight trough is evenly arranged multiple along drill holder excircle direction;
Further, the bottom land place consistency of thickness of the corresponding each cannelure of described drill holder and straight trough;
Further, a side at the corresponding large end of tapering face of described mandrel place is provided with the radial flange for workpiece being carried out to axial location; Described self-adapting bulging sleeve clamp also comprises and is set in the outside and axial location of mandrel in the packing ring at described radial flange place;
Further, described self-adapting bulging sleeve clamp also comprises and is set in the outside and gland of pad between clamp nut and drill holder of mandrel.
The beneficial effects of the utility model are: self-adapting bulging sleeve clamp of the present utility model, by make drill holder outer wall form multiple back-up blocks of being separated by groove in drill holder outer wall machined grooves, on each back-up block, form a little stayed surface, after clamping workpiece, the relatively large back-up block of pressurized can be by radial compression, and then make to produce certain pressure between pressurized back-up block energy relatively little and that do not contact with workpiece and workpiece, increase the contact area between drill holder outer wall surface and workpiece, improve stressed uniformity, can carry out reliable and stable location to workpiece, without independently axial location gland structure is set, compared with existing expansion sleeve clamp, simple in structure, lightweight, can save fixture manufacturing cost, reduce labor intensity of operating staff, can also reduce clamping step simultaneously, be beneficial to and improve clamping efficiency.
Brief description of the drawings
Below in conjunction with drawings and Examples, the utility model is further described:
Fig. 1 is structural representation of the present utility model.
Detailed description of the invention
Fig. 1 is structural representation of the present utility model, as shown in the figure: the self-adapting bulging sleeve clamp of the present embodiment, comprise be provided with tapering face mandrel 1, be set in the drill holder 2 of mandrel 1 tapering face and make it along mandrel 1 clamp nut 3 in axial sliding for compressing drill holder 2; Described drill holder 2 outer walls are provided with groove; On mandrel 1, corresponding clamp nut 3 is provided with external screw thread, and multiple back-up blocks that described groove is separated drill holder 2 outer walls, form a little stayed surface on each back-up block.
In the present embodiment, described groove comprises the cannelure 4 arranging around drill holder 2 excircle directions, easy to process, directly processing on drill holder in the prior art.
In the present embodiment, described cannelure 4 is axially evenly arranged multiple along drill holder 2, the quantity of cannelure 4 is so that the back-up block being separated out has can be as the criterion by the reasonable compression strength of radial compression, certainly processing cannelure 4 how can be separated out more back-up block as far as possible, more be conducive to increase the contact area between drill holder 2 outer wall surface and workpiece 8, improve stressed uniformity.
In the present embodiment, described groove also comprises the straight trough (not shown) axially arranging along drill holder 2, groove can be only the cannelure 4 arranging around drill holder 2 excircle directions or the straight trough (not shown) axially arranging along drill holder 2, also can be described cannelure 4 and the staggered groove structure being combined into of straight trough (not shown), all can realize the purpose of this utility model, can be separated out more back-up block by the staggered combination of cannelure 4 and straight trough (not shown).
In the present embodiment, described straight trough (not shown) is evenly arranged multiple along drill holder 2 excircle directions, can make back-up block be evenly distributed to be positioned at support block structure and the compression strength high conformity of same circumference simultaneously, is beneficial to the positioning precision that ensures workpiece 8.
In the present embodiment, the bottom land place consistency of thickness of the corresponding each cannelure 4 of described drill holder 2 and straight trough (not shown), is beneficial to drill holder 2 homogeneous deformations.
In the present embodiment, a side at the described mandrel 1 large end of corresponding tapering face place is provided with the radial flange 5 for workpiece 8 being carried out to axial location; Described self-adapting bulging sleeve clamp also comprises and is set in the outside and axial location of mandrel 1 in the packing ring 6 at described radial flange 5 places.
In the present embodiment, described self-adapting bulging sleeve clamp also comprises and is set in the outside and gland 7 of pad between clamp nut 3 and drill holder 2 of mandrel 1, destroys workpiece 8 end face surface while avoiding screwing in clamp nut 3.
Finally explanation is, above embodiment is only unrestricted in order to the technical solution of the utility model to be described, although the utility model is had been described in detail with reference to preferred embodiment, those of ordinary skill in the art is to be understood that, can modify or be equal to replacement the technical solution of the utility model, and not departing from aim and the scope of technical solutions of the utility model, it all should be encompassed in the middle of claim scope of the present utility model.

Claims (8)

1. a self-adapting bulging sleeve clamp, is characterized in that: comprise be provided with tapering face mandrel, be set in the drill holder of mandrel tapering face and make it along mandrel clamp nut in axial sliding for compressing drill holder; Described drill holder outer wall is provided with groove.
2. self-adapting bulging sleeve clamp according to claim 1, is characterized in that: described groove comprises the cannelure arranging around drill holder excircle direction.
3. self-adapting bulging sleeve clamp according to claim 2, is characterized in that: described cannelure is axially evenly arranged multiple along drill holder.
4. self-adapting bulging sleeve clamp according to claim 3, is characterized in that: described groove also comprises the straight trough axially arranging along drill holder.
5. self-adapting bulging sleeve clamp according to claim 4, is characterized in that: described straight trough is evenly arranged multiple along drill holder excircle direction.
6. self-adapting bulging sleeve clamp according to claim 5, is characterized in that: the bottom land place consistency of thickness of the corresponding each cannelure of described drill holder and straight trough.
7. according to the self-adapting bulging sleeve clamp described in the arbitrary claim of claim 1-6, it is characterized in that: a side at the corresponding large end of tapering face of described mandrel place is provided with the radial flange for workpiece being carried out to axial location; Described self-adapting bulging sleeve clamp also comprises and is set in the outside and axial location of mandrel in the packing ring at described radial flange place.
8. according to the self-adapting bulging sleeve clamp described in the arbitrary claim of claim 1-6, it is characterized in that: described self-adapting bulging sleeve clamp also comprises and is set in the outside and gland of pad between clamp nut and drill holder of mandrel.
CN201320727352.8U 2013-11-18 2013-11-18 Self-adaptive expansion sleeve clamp Expired - Fee Related CN203791659U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201320727352.8U CN203791659U (en) 2013-11-18 2013-11-18 Self-adaptive expansion sleeve clamp

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201320727352.8U CN203791659U (en) 2013-11-18 2013-11-18 Self-adaptive expansion sleeve clamp

Publications (1)

Publication Number Publication Date
CN203791659U true CN203791659U (en) 2014-08-27

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN201320727352.8U Expired - Fee Related CN203791659U (en) 2013-11-18 2013-11-18 Self-adaptive expansion sleeve clamp

Country Status (1)

Country Link
CN (1) CN203791659U (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105364203A (en) * 2015-12-05 2016-03-02 綦江县赛普雷多汽车齿轮厂 Auxiliary tool in gear machining process
CN105364200A (en) * 2015-12-05 2016-03-02 綦江县赛普雷多汽车齿轮厂 Tool used for processing gear
CN105364205A (en) * 2015-12-05 2016-03-02 綦江县赛普雷多汽车齿轮厂 Gear shaving fixture
CN105396938A (en) * 2015-12-02 2016-03-16 贵州安大航空锻造有限责任公司 Partial bulging device of high-temperature alloy flange for aircraft engine
CN105522234A (en) * 2015-12-05 2016-04-27 綦江县赛普雷多汽车齿轮厂 Gear shaving tool
CN106881686A (en) * 2017-04-24 2017-06-23 天意精密制造有限公司 A kind of many tapers look for heart hydromechanical mandrel fixture and its assembling and look for heart method automatically
CN106903338A (en) * 2017-04-19 2017-06-30 中国航发北京航空材料研究院 A kind of fixture for processing thin-walled T-shaped bushing

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105396938A (en) * 2015-12-02 2016-03-16 贵州安大航空锻造有限责任公司 Partial bulging device of high-temperature alloy flange for aircraft engine
CN105364203A (en) * 2015-12-05 2016-03-02 綦江县赛普雷多汽车齿轮厂 Auxiliary tool in gear machining process
CN105364200A (en) * 2015-12-05 2016-03-02 綦江县赛普雷多汽车齿轮厂 Tool used for processing gear
CN105364205A (en) * 2015-12-05 2016-03-02 綦江县赛普雷多汽车齿轮厂 Gear shaving fixture
CN105522234A (en) * 2015-12-05 2016-04-27 綦江县赛普雷多汽车齿轮厂 Gear shaving tool
CN106903338A (en) * 2017-04-19 2017-06-30 中国航发北京航空材料研究院 A kind of fixture for processing thin-walled T-shaped bushing
CN106903338B (en) * 2017-04-19 2018-08-28 中国航发北京航空材料研究院 A kind of fixture of processing thin-walled T shape bushings
CN106881686A (en) * 2017-04-24 2017-06-23 天意精密制造有限公司 A kind of many tapers look for heart hydromechanical mandrel fixture and its assembling and look for heart method automatically

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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: 20140827

Termination date: 20191118

CF01 Termination of patent right due to non-payment of annual fee