CN105729182A - Tensioning clamp for sheet-type part subjected to rotary milling processing - Google Patents

Tensioning clamp for sheet-type part subjected to rotary milling processing Download PDF

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Publication number
CN105729182A
CN105729182A CN201610286425.2A CN201610286425A CN105729182A CN 105729182 A CN105729182 A CN 105729182A CN 201610286425 A CN201610286425 A CN 201610286425A CN 105729182 A CN105729182 A CN 105729182A
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CN
China
Prior art keywords
hole
clamping
tensioning
gyroaxis
motion
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Granted
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CN201610286425.2A
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Chinese (zh)
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CN105729182B (en
Inventor
罗明
张仲玺
张定华
吴宝海
李涛
姚懿航
高建
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Northwestern Polytechnical University
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Northwestern Polytechnical University
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Publication of CN105729182A publication Critical patent/CN105729182A/en
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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23QDETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
    • B23Q3/00Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine
    • B23Q3/02Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine for mounting on a work-table, tool-slide, or analogous part
    • B23Q3/06Work-clamping means
    • B23Q3/062Work-clamping means adapted for holding workpieces having a special form or being made from a special material
    • B23Q3/065Work-clamping means adapted for holding workpieces having a special form or being made from a special material for holding workpieces being specially deformable, e.g. made from thin-walled or elastic material

Abstract

The invention provides a tensioning clamp for a sheet-type part subjected to rotary milling processing. The tensioning clamp for the sheet-type part subjected to the rotary milling processing consists of a pedestal, a tensioning component and a clamping component, wherein the clamping component comprises a clamping driving device, a box body, a rotary shaft, a retainer cup, a movement crossover joint, a connecting rod, a pulling claw and a symmetrical clamping head; the tensioning component comprises a tensioning driving device, a transmission device and a guide rail sliding block device. According to the tensioning clamp for the sheet-type part subjected to the rotary milling processing, the sheet-type part is fixed by adopting a tensioning way; the clamping rigidity of the part can be effectively improved; the cutter relieving deformation in the processing process of the part is reduced; the processing vibration is restrained; the processing quality of the part is improved; the service life of a knife tool is prolonged; therefore, the processing cost is decreased; tensioning force is controlled through the tensioning driving device; the tensioning force can be guaranteed to be uniform and can be further regulated according to requirement; the symmetrical clamping head is tensioned to clamp the part through the clamping driving device; the rotary center of the part can be guaranteed to be unchangeable in a clamping process; the clamping deformation cannot be caused; further, the operation is simple; a clamping error caused by a human factor can be avoided.

Description

A kind of stretching device processing part for thin plate class rotating-milling
Technical field
The present invention relates to Machining Technology field, be specially a kind of stretching device processing part for thin plate class rotating-milling.
Background technology
Along with the development of industrial technology, the product more and more with complex surface is designed and uses, in addition the requirement of product light-weight design, and the design and use of sheet parts are increasing, especially more prominent at aerospace field.There is complex-curved sheet parts (such as compressor blade, turbo blade etc.) be generally used Multishaft processing center and be milled into, cause that processing vibration strengthens yet with the intrinsic weak rigidity of sheet parts, tool wear is very fast, and working (machining) efficiency is relatively low.
Sheet parts Multi-axis Machining generally adopts the mode that tailstock centre supports, but the method relies on workman's hand control clamping force, and clamping force size should not control, and bigger clamping force is easily caused the clamping deformation of part to be processed.In recent years, there is Patents to propose the fixture of tension clamping, reduce the clamping deformation of part to a certain extent.The stretching device of patent of invention (CN201410761827.4) slender axles, this fixture designs just for the processing of slender axles, and sheet parts can not be used;A kind of special stretching device of blade parts milling of patent of invention (CN201410103742.7), this jig Design adopts hand-operated clamping mode, inconvenient operation and be easily caused bias, and this jig Design does not consider the rigidity of clamp body itself simultaneously.
Summary of the invention
There is clamping deformation and the problem such as detail rigidity is relatively low man-hour adding in the existing thin plate class rotating-milling processing part proposed for background technology, the present invention proposes a kind of fixture processing parts fixation location suitable in all thin plate class rotating-millings, this fixture can effectively improve the clamping rigidity of sheet parts, and then improves part processing precision.
Technical scheme:
Described a kind of stretching device processing part for thin plate class rotating-milling, it is characterised in that: it is made up of pedestal, pulling assembly and clamp assembly;
Described clamp assembly includes driving clamping device, casing, gyroaxis, a set of cups, motion adapter, connecting rod, pulling claw and symmetrical chuck;
Described casing is with central through hole;Gyroaxis adopts bearings to be coaxially mounted in casing central through hole;
Described gyroaxis is hollow structure, and wherein one end is enlarging taper hole structure, and the symmetrical chuck for clamping part to be processed inserts in enlarging taper hole, and symmetrical chuck male cone (strobilus masculinus) and the laminating of the enlarging taper hole conical surface, symmetrical center of collet axis and gyroaxis central axis conllinear;A set of cups is fixedly mounted on the gyroaxis other end, and a set of cups stretches into inside gyroaxis hollow structure;
Described a set of cups is with central through hole, and wherein one end is with enlarging cone structure, is used for installing pulling claw;Motion adapter is arranged on inside a set of cups central through hole, and is connected by connecting rod between motion adapter and pulling claw;Described connecting rod one end is fixing with pulling claw to be connected, and the other end and motion adapter are rotatably assorted;Connecting rod central axis, pulling claw central axis and gyroaxis central axis conllinear;
The clutch end of described driving clamping device and motion adapter one end are fixing to be connected, and can brought into motion adapter along gyroaxis central axis rectilinear motion in a set of cups central through hole;When motion adapter drives pulling claw to a set of cups internal motion, pulling claw shrinks and clamps symmetrical chuck;When motion adapter drives pulling claw to a set of cups external movement, pulling claw launches and discharges symmetrical chuck;
Described pulling assembly includes tensioning drive, actuating device and guide rail slide block device;Guide rails assembling on pedestal, slide block be arranged on guide rail and can on guide rail rectilinear motion;The casing of clamp assembly is fixed on slide block, and tensioning drive can pass through actuator drives casing along guide rail rectilinear motion.
Further preferred version, described a kind of stretching device processing part for thin plate class rotating-milling, it is characterised in that: tensioning drive adopts servomotor;Actuating device adopts screw-nut structure;Screw is fixed on the casing of clamp assembly, and servomotor can drive screw turns, leading screw and guide rail parallel.
Further preferred version, described a kind of stretching device processing part for thin plate class rotating-milling, it is characterised in that: driving clamping device adopts cylinder;Cylinder is fixed on box back lid end face by support, and cylinder rod and motion adapter one end are fixedly and coaxially connected.
Further preferred version, described a kind of stretching device processing part for thin plate class rotating-milling, it is characterised in that: described motion adapter is made up of bonnet, copper packing, the collar and copper packing ring;The collar has axial step through hole;Connecting rod is through the diameter holes of collar end, and the cylindrical projection of interlinking lever end is in the hole, big footpath of the collar, equipped with copper packing ring between interlinking lever end cylindrical projection and collar step surface;Bonnet and the collar big footpath nose end are fixedly and coaxially connected, equipped with copper packing between interlinking lever end cylindrical projection and bonnet end face;The clutch end of bonnet and driving clamping device is fixedly and coaxially connected.
Further preferred version, described a kind of stretching device processing part for thin plate class rotating-milling, it is characterised in that: described symmetrical chuck is made up of pull bar, taper shank, voussoir, collet;Described taper shank has axial step through hole, pull bar and voussoir to be arranged in the axial step through-hole of taper shank, and pull bar and voussoir are fixedly and coaxially connected;Voussoir outer end has the wedge groove of reducing, installs collet in wedge groove, and collet engages with wedge groove inclined-plane.
Beneficial effect
The stretching device for thin plate class rotating-milling processing part that the present invention proposes has the advantage that
1, this stretching device adopts the mode splint fixation class part of tension, it is possible to the effective clamping rigidity improving part, reduces the cutter relieving deformation of the part course of processing, presses down processing vibration of shaking, improve part crudy, extends cutter life, and then reduce processing cost.
2, this stretching device adopts tensioning drive (servomotor) to control tightening force, it is possible to ensures even stretch tension and can be adjusted as required.
3, this stretching device adopts the symmetrical chuck Clamp blocks of driving clamping device (cylinder) tension, and clamping process ensure that the part centre of gyration is constant, will not cause clamping deformation, and simple to operate, it is possible to avoids the clamping error that anthropic factor causes.
4, this stretching device preferentially selects servomotor and cylinder as the power of tension and clamping, controls accurately and convenient, but also easily realizes Automated condtrol.
Accompanying drawing explanation
Above-mentioned and/or the additional aspect of the present invention and advantage are from conjunction with will be apparent from easy to understand the accompanying drawings below description to embodiment, wherein:
Fig. 1 is the structural representation of the stretching device processing part for thin plate class rotating-milling that the present invention proposes;
Fig. 2 is the left view of stretching device;
Fig. 3 is the structure enlarged diagram at A place in Fig. 1;
Fig. 4 is the structural representation of symmetrical chuck 11 in Fig. 1;
Fig. 5 is the right view of taper shank 31;
Fig. 6 is the sectional view of taper shank 31;
Fig. 7 is the top view of taper shank 31;
Fig. 8 is the sectional view of voussoir 32;
Fig. 9 is the left view of voussoir 32;
Figure 10 is the top view of voussoir 32;
Figure 11 is the shaft side figure of voussoir 32;
Figure 12 is the shaft side figure of collet 33.
In accompanying drawing, 1-cylinder, 2-support, 3-rear end cap, 4-motion adapter, 5-clutch shaft bearing, 6-connecting rod, 7-a set of cups, 8-pulling claw, 9-gyroaxis, 10-casing, 11-symmetry chuck, 12-sealing ring, 13-drive end bearing bracket, 14-pedestal, 15-slide block, 16-guide rail, 17-screw, 18-leading screw, 19-the second bearing, 20 bearing blocks, 21-end cap, 22-round nut, 23-shaft coupling, 24-decelerator, 25-servomotor, 26-bonnet, 27-copper packing, the 28-collar, 29-copper packing ring, 30-pull bar, 31-taper shank, 32-voussoir, 33-collet.
Detailed description of the invention
Being described below in detail embodiments of the invention, the example of described embodiment is shown in the drawings, and wherein same or similar label represents same or similar element or has the element of same or like function from start to finish.The embodiment described below with reference to accompanying drawing is illustrative of, it is intended to is used for explaining the present invention, and is not considered as limiting the invention.
In describing the invention, it will be appreciated that, term " " center ", " longitudinal direction ", " transverse direction ", " length ", " width ", " thickness ", " on ", D score, " front ", " afterwards ", " left side ", " right side ", " vertically ", " level ", " top ", " end ", " interior ", " outward ", " clockwise ", orientation or the position relationship of the instruction such as " counterclockwise " are based on orientation shown in the drawings or position relationship, it is for only for ease of the description present invention and simplifies description, rather than the device of instruction or hint indication or element must have specific orientation, with specific azimuth configuration and operation, therefore it is not considered as limiting the invention.
In addition, term " first ", " second " only for descriptive purposes, and it is not intended that instruction or hint relative importance or the implicit quantity indicating indicated technical characteristic.Therefore, define " first ", the feature of " second " can express or implicitly include one or more these features.In describing the invention, " multiple " are meant that two or more, unless otherwise expressly limited specifically.
Present invention is generally directed to existing thin plate class rotating-milling processing part and there is clamping deformation and the problem such as detail rigidity is relatively low man-hour adding, propose a kind of fixture processing parts fixation location suitable in all thin plate class rotating-millings, this fixture can effectively improve the clamping rigidity of sheet parts, and then improves part processing precision
As it is shown in figure 1, this stretching device is made up of pedestal 14, pulling assembly and clamp assembly.
Clamp assembly includes driving clamping device, casing 10, gyroaxis 9, a set of cups 7, motion adapter 4, connecting rod 6, pulling claw 8 and symmetrical chuck 11.
Casing 10 is with central through hole, and gyroaxis 9 is supported in the central through hole being coaxially mounted to casing 10 by clutch shaft bearing 5.Clutch shaft bearing 5 passes through drive end bearing bracket 13 and rear end cap 3 axial restraint at casing 10 two ends.Gyroaxis 9 is hollow structure, wherein one end is enlarging taper hole structure, symmetrical chuck 11 for clamping part to be processed inserts in enlarging taper hole, and symmetrical chuck 11 male cone (strobilus masculinus) and the laminating of the enlarging taper hole conical surface, symmetrical chuck 11 central axis and gyroaxis 9 central axis conllinear.
In the present embodiment, driving clamping device adopts cylinder 1, and cylinder 1 fixes on box back lid 3 end face by support solid 2, and cylinder rod and motion adapter one end are fixedly and coaxially connected.
Gyroaxis 9 turns round around axle center with part according to part processing request, and clutch shaft bearing 5 ensure that gyroaxis 9 has higher kinematic accuracy, less frictional resistance and longer life-span, and cylinder 1 is used for straining symmetrical chuck 11, easy-to-operate.
A set of cups 7 is fixedly mounted on the other end of gyroaxis 9, and a set of cups 7 stretches into inside gyroaxis 9 hollow structure.Described a set of cups 7 is with central through hole, and wherein one end is with enlarging cone structure, is used for installing pulling claw 8;Motion adapter 4 is arranged on inside a set of cups 7 central through hole, and is connected by connecting rod 6 between motion adapter 4 with pulling claw 8;Described connecting rod 6 one end is screwed with pulling claw 8 and is connected, and the other end and motion adapter 4 are rotatably assorted;Connecting rod central axis, pulling claw central axis and gyroaxis central axis conllinear.
In the present embodiment, cylinder rod and motion adapter 4 one end are fixedly and coaxially connected, a set of cups central through hole internal face and motion adapter outside wall surface matched in clearance, cylinder rod can brought into motion adapter 4 along gyroaxis central axis rectilinear motion in a set of cups central through hole;By having enlarging cone structure in a set of cups Front-end Design, when motion adapter drives pulling claw to a set of cups internal motion, pulling claw shrinks and clamps symmetrical chuck;When motion adapter drives pulling claw to a set of cups external movement, pulling claw launches and discharges symmetrical chuck.And symmetry chuck is arranged in the enlarging conic hole of gyroaxis end, symmetrical chuck is used for clamping part to be processed, and symmetrical chuck coordinates preferably with gyroaxis to select enlarging taper hole ensure that, taper hole can be general with top simultaneously, conveniently selects.
Described pulling assembly includes tensioning drive, actuating device and guide rail slide block device.Guide rail 16 is arranged on pedestal 14, slide block 15 be arranged on guide rail and can on guide rail rectilinear motion;The casing 10 of clamp assembly is fixed on slide block 15, and tensioning drive can pass through actuator drives casing along guide rail rectilinear motion.The present invention adopts guide rail slide block device, because slide block has higher precision at moving on rails, it is possible to ensure that part will not produce clamping deformation when tension, there is higher rigidity simultaneously.
In the present embodiment, tensioning drive adopts servomotor 25;Actuating device adopts screw-nut structure;Screw 17 is fixed on the casing 10 of clamp assembly, and servomotor can drive leading screw 18 to rotate, and leading screw 18 is parallel with guide rail 16.When the present embodiment implements, bearing block 20 is fixed on pedestal 14, and it is internal that leading screw 18 is fixed on bearing block 20 by the second bearing 19, and is fixed by round nut 22, and the second bearing 19 outer ring is fixed by end cap 21.Adopt screw-nut structure driven to enable to whole casing to move on guide rail, size according to clamped part regulates the position of casing, when after-applied tightening force is stablized in part clamping, leading screw is played a supportive role by bearing block, bearing and round nut, and end cap is used for fixing bearing.Decelerator 24 is fixed on pedestal 14, and servomotor 25 is connected with decelerator 24, and leading screw 18 and decelerator 24 output shaft are linked together by shaft coupling 23.The power source that servomotor moves as whole casing, kinematic accuracy is high, easy to control, and decelerator is for improving the gear ratio of servomotor, and shaft coupling is for being transferred to leading screw by the power that decelerator exports.
As it is shown on figure 3, the motion adapter in the present embodiment is made up of bonnet 26, copper packing 27, the collar 28 and copper packing ring 29.The collar 28 has axial step through hole;Connecting rod 6 is through the diameter holes of collar end, and the cylindrical projection of interlinking lever end is in the hole, big footpath of the collar, equipped with copper packing ring between interlinking lever end cylindrical projection and collar step surface;Bonnet and the collar big footpath nose end are fixedly and coaxially connected, equipped with copper packing between interlinking lever end cylindrical projection and bonnet end face;Bonnet and cylinder rod are fixedly and coaxially connected.Owing to cylinder rod does straight reciprocating motion with piston, connecting rod with pulling claw and symmetrical chuck around center steering, so motion adapter plays connects cylinder and pulling claw effect, copper packing and copper packing ring for reducing frictional force during revolution, extend the life-span of motion adapter.
As shown in Figure 4, symmetrical chuck is made up of pull bar 30, taper shank 31, voussoir 32, collet 33.Described taper shank has axial step through hole, pull bar and voussoir to be arranged in the axial step through-hole of taper shank, and pull bar and voussoir are fixedly and coaxially connected;Voussoir outer end has the wedge groove of reducing, installs collet in wedge groove, and collet engages with wedge groove inclined-plane.The cone angle of taper shank 31 is identical with the cone angle of gyroaxis 9 expanding end taper hole, and collet 33 is identical with the angle of chamfer of voussoir 32.Symmetrical chuck is for holding parts, and according to the collet that part to be processed location boss size Selection is suitable, voussoir slides with pull bar and makes collet to contract, and tightening force is more big, clamps more firm.Symmetrical chuck selects taper shank to be connected with gyroaxis, it is ensured that stable connection is reliable, with top exchange, and then can ensure wider array of practicality simultaneously;The inclined-plane of voussoir and collet obtains enough clamping forces for the pulling force amplifying cylinder, and inclined-plane has auto-lock function simultaneously, it is possible to prevent clamping from getting loose.
The operation principle of the present invention is:
First stretching device proposed by the invention is arranged on machining center or CNC milling machine workbench, regulates and make rotating chuck (a axle) axis and strain clamp gyroaxis dead in line;Then will be added blade root and be arranged on chuck, according to the collet that the size Selection of processed blade installation positioning boss is suitable, and with being installed in symmetrical chuck, and symmetry chuck will be inserted back in roller end taper hole;3rd step, regulates servomotor so that casing moves on guide rail, and regulates blade blade fixing lug boss is inserted in collet;4th step, connects source of the gas so that cylinder action, and symmetry chuck is strained by pulling claw action therewith, and now, symmetrical chuck is by blade firm grip;5th step, controls servomotor pulling them, and keeps expection tightening force, then start processing;6th step, after blade processing completes, cylinder is reversely ventilated, and unloads blade.
Although above it has been shown and described that embodiments of the invention, it is understandable that, above-described embodiment is illustrative of, being not considered as limiting the invention, above-described embodiment can be changed when without departing from principles of the invention and objective, revises, replace and modification by those of ordinary skill in the art within the scope of the invention.

Claims (5)

1. the stretching device for thin plate class rotating-milling processing part, it is characterised in that: it is made up of pedestal, pulling assembly and clamp assembly;
Described clamp assembly includes driving clamping device, casing, gyroaxis, a set of cups, motion adapter, connecting rod, pulling claw and symmetrical chuck;
Described casing is with central through hole;Gyroaxis adopts bearings to be coaxially mounted in casing central through hole;
Described gyroaxis is hollow structure, and wherein one end is enlarging taper hole structure, and the symmetrical chuck for clamping part to be processed inserts in enlarging taper hole, and symmetrical chuck male cone (strobilus masculinus) and the laminating of the enlarging taper hole conical surface, symmetrical center of collet axis and gyroaxis central axis conllinear;A set of cups is fixedly mounted on the gyroaxis other end, and a set of cups stretches into inside gyroaxis hollow structure;
Described a set of cups is with central through hole, and wherein one end is with enlarging cone structure, is used for installing pulling claw;Motion adapter is arranged on inside a set of cups central through hole, and is connected by connecting rod between motion adapter and pulling claw;Described connecting rod one end is fixing with pulling claw to be connected, and the other end and motion adapter are rotatably assorted;Connecting rod central axis, pulling claw central axis and gyroaxis central axis conllinear;
The clutch end of described driving clamping device and motion adapter one end are fixing to be connected, and can brought into motion adapter along gyroaxis central axis rectilinear motion in a set of cups central through hole;When motion adapter drives pulling claw to a set of cups internal motion, pulling claw shrinks and clamps symmetrical chuck;When motion adapter drives pulling claw to a set of cups external movement, pulling claw launches and discharges symmetrical chuck;
Described pulling assembly includes tensioning drive, actuating device and guide rail slide block device;Guide rails assembling on pedestal, slide block be arranged on guide rail and can on guide rail rectilinear motion;The casing of clamp assembly is fixed on slide block, and tensioning drive can pass through actuator drives casing along guide rail rectilinear motion.
2. according to claim 1 a kind of for thin plate class rotating-milling process part stretching device, it is characterised in that: tensioning drive adopt servomotor;Actuating device adopts screw-nut structure;Screw is fixed on the casing of clamp assembly, and servomotor can drive screw turns, leading screw and guide rail parallel.
3. a kind of stretching device processing part for thin plate class rotating-milling according to claim 1 or claim 2, it is characterised in that: driving clamping device adopts cylinder;Cylinder is fixed on box back lid end face by support, and cylinder rod and motion adapter one end are fixedly and coaxially connected.
4. according to claim 3 a kind of for thin plate class rotating-milling process part stretching device, it is characterised in that: described motion adapter is made up of bonnet, copper packing, the collar and copper packing ring;The collar has axial step through hole;Connecting rod is through the diameter holes of collar end, and the cylindrical projection of interlinking lever end is in the hole, big footpath of the collar, equipped with copper packing ring between interlinking lever end cylindrical projection and collar step surface;Bonnet and the collar big footpath nose end are fixedly and coaxially connected, equipped with copper packing between interlinking lever end cylindrical projection and bonnet end face;The clutch end of bonnet and driving clamping device is fixedly and coaxially connected.
5. a kind of stretching device processing part for thin plate class rotating-milling according to claim 4, it is characterised in that: described symmetrical chuck is made up of pull bar, taper shank, voussoir, collet;Described taper shank has axial step through hole, pull bar and voussoir to be arranged in the axial step through-hole of taper shank, and pull bar and voussoir are fixedly and coaxially connected;Voussoir outer end has the wedge groove of reducing, installs collet in wedge groove, and collet engages with wedge groove inclined-plane.
CN201610286425.2A 2016-05-03 2016-05-03 A kind of stretching device that part is processed for thin plate class rotating-milling Active CN105729182B (en)

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CN107803681A (en) * 2017-11-24 2018-03-16 宁波英德菲尔机械科技有限公司 A kind of fixture for being used to process eccentric shaft
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CN108723670A (en) * 2018-06-04 2018-11-02 钱浩 A kind of workpiece positioning tension device
CN109719317A (en) * 2018-12-31 2019-05-07 保定向阳航空精密机械有限公司 A kind of self-centering disk mandrel of fluid pressure type
CN114161196A (en) * 2021-12-10 2022-03-11 河南航天液压气动技术有限公司 Novel quick-change tool structure for numerically controlled lathe

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CN103846706A (en) * 2014-03-20 2014-06-11 西北工业大学 Special tension clamp for milling of blade type parts
CN104647100A (en) * 2015-01-07 2015-05-27 池州共康汽车零部件有限公司 Turning tightening clamping device

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DE102005034476A1 (en) * 2005-07-20 2007-01-25 Albert Schrem Werkzeugfabrik Gmbh Hydraulic clamp, especially for a circular blade on a cylindrical spindle shaft, has a body with clamping pincers for a radial clamping action and a hydraulic ring piston to apply an axial force on the tool against a fixed limit stop
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Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107242709A (en) * 2017-07-31 2017-10-13 合肥万伟达信息科技有限公司 A kind of safe intelligent storing cabinet
CN107803681A (en) * 2017-11-24 2018-03-16 宁波英德菲尔机械科技有限公司 A kind of fixture for being used to process eccentric shaft
CN107803681B (en) * 2017-11-24 2024-03-12 宁波英德菲尔机械科技有限公司 Clamp for machining eccentric shaft
CN108555364A (en) * 2018-03-07 2018-09-21 湖南工学院 The tool system and application method that high-efficiency and precision for high-rate wireless LAN positions
CN108555364B (en) * 2018-03-07 2019-05-14 湖南工学院 The tool system and application method that high-efficiency and precision for high-rate wireless LAN positions
CN108723670A (en) * 2018-06-04 2018-11-02 钱浩 A kind of workpiece positioning tension device
CN109719317A (en) * 2018-12-31 2019-05-07 保定向阳航空精密机械有限公司 A kind of self-centering disk mandrel of fluid pressure type
CN114161196A (en) * 2021-12-10 2022-03-11 河南航天液压气动技术有限公司 Novel quick-change tool structure for numerically controlled lathe

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