CN103949917A - Ring type workpiece fixing device - Google Patents

Ring type workpiece fixing device Download PDF

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Publication number
CN103949917A
CN103949917A CN201410199277.1A CN201410199277A CN103949917A CN 103949917 A CN103949917 A CN 103949917A CN 201410199277 A CN201410199277 A CN 201410199277A CN 103949917 A CN103949917 A CN 103949917A
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CN
China
Prior art keywords
ring
workpiece
interior
fixing device
retainer ring
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.)
Granted
Application number
CN201410199277.1A
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Chinese (zh)
Other versions
CN103949917B (en
Inventor
吴杰
罗世魁
韩保辉
张志刚
张迪
张存玉
马骏
张明柱
李存海
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.)
BEIJING AEROSPACE HEZHONG TECHNOLOGY DEV Co.,Ltd.
Beijing Institute of Space Research Mechanical and Electricity
Original Assignee
Beijing Institute of Space Research Mechanical and Electricity
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Publication date
Application filed by Beijing Institute of Space Research Mechanical and Electricity filed Critical Beijing Institute of Space Research Mechanical and Electricity
Priority to CN201410199277.1A priority Critical patent/CN103949917B/en
Publication of CN103949917A publication Critical patent/CN103949917A/en
Application granted granted Critical
Publication of CN103949917B publication Critical patent/CN103949917B/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
    • 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
    • B23Q2703/00Work clamping
    • B23Q2703/02Work clamping means
    • B23Q2703/10Devices for clamping workpieces of a particular form or made from a particular material

Abstract

A ring type workpiece fixing device comprises two parts of an inner fixing device and an outer fixing device, wherein either the inner fixing device or the outer fixing device consists of a fixing ring, a clamping ring and a connecting ring. The ring type workpiece fixing device is used for fixing a workpiece when the inner or outer round surface of one ring workpiece or a plurality of workpieces in an overlapped combination manner is subjected to lathe work, and can provide the workpiece with adjustable axial static pressure. When the outer round surface of the workpiece is processed, the inner fixing device is used. When the inner round surface is processed, the outer fixing device is used. When the ring type workpiece fixing device is used, each first screw on a clamping point is regulated by a torque spanner in a certain sequence, tightening force is transmitted to steel balls through a guide column and is converted to axial positive pressure due to the guide of a guide sleeve and the point contact of the steel balls, and the fixing and clamping of the workpiece are realized through clamping the workpiece by the steel balls through a washer. Finally, the workpiece is only subjected to axial force, and radial force and tangential force are zero, so that the clamping deformation degree of the workpiece is the lowest. The workpiece processing cylindricity and coaxiality and combination processing consistency can be ensured.

Description

A kind of annular workpieces fixture
Technical field
The present invention relates to a kind of annular workpieces fixture, the fixing clamping to workpiece while processing inside and outside disc for annular workpieces single-piece or many stacked combination turning, can realize micro-distortion clamping, ensures size and the accuracy of form and position of inside and outside disc turning processing.
Background technology
Common workpiece is in the time of machining, the general mode that uses pressing plate clamping is fixed, but inside and outside disc is processed in turning for annular workpieces, if adopt the mode of end surface press plate clamping, except axial thrust, must bring radially or tangential component, cause the distortion of the especially low rigidity annular workpieces of annular workpieces, affect machining accuracy; If adopt the mode of inner circle or outer dome clamping, pressure is wayward, easily causes the afterburning excessive workpiece deformation that causes of clamping power deficiency or dress, and the method cannot be used for many stacked combinations processing.Therefore, existing clamping method, for the especially low rigidity annular workpieces of lopps, can cause workpiece stress deformation, and machining accuracy is affected.
Summary of the invention
The technical problem that the present invention solves is: overcome the problem on deformation that prior art center platen clamping annular workpieces brings, a kind of annular workpieces fixture is provided, this device applies adjustable shaft to static pressure to workpiece, make annular workpieces clamping deformation minimum, and meet the fixture of inside and outside disc turning needs.
Technical scheme of the present invention is: a kind of annular workpieces fixture, comprise inner fixing device and external fixer, and described inner fixing device comprises interior retainer ring, interior hold-down ring and interior connecting ring; Described interior retainer ring is cirque structure, on interior retainer ring axially circumference uniform distribution have for the fixing screw via hole of outside lathe table top; Described interior hold-down ring is cirque structure, and on the outer ring surface of interior hold-down ring, circumference uniform distribution is useful on the compression point of retainer ring class workpiece; Described interior retainer ring is fixedly connected with by interior connecting ring with interior hold-down ring, and on interior connecting ring, circumference uniform distribution has radial direction through hole; Described interior retainer ring equates with the external diameter of interior connecting ring, and the external diameter of described interior hold-down ring is all greater than interior retainer ring and interior connecting ring;
Described external fixer comprises outer retainer ring, external compression ring and outer connecting ring; Described outer retainer ring is cirque structure, on outer retainer ring axially circumference uniform distribution have for the fixing screw via hole of outside lathe table top; Described external compression ring is cirque structure, and on the inner ring surface of external compression ring, circumference uniform distribution is useful on the compression point of retainer ring class workpiece; Described outer retainer ring is fixedly connected with by outer connecting ring with external compression ring, and on outer connecting ring, circumference uniform distribution has radial direction through hole; Described outer retainer ring equates with the internal diameter of outer connecting ring, and the internal diameter of described external compression ring is all less than outer retainer ring and outer connecting ring.
Described compression point comprises lead, fairlead, steel ball, pad, the first screw; The first screw is arranged in the axial thread hole that compresses some place, and fairlead is arranged on the axial counterbore that is positioned at above-mentioned screwed hole below, fairlead and described counterbore interference fit; Lead and steel ball are installed in fairlead, lead and fairlead matched in clearance, and steel ball and fairlead interference fits, move vertically by fairlead restricted guidance post and steel ball; The upper surface of lead contacts with the first screw, the upper end in contact of the lower surface of lead and steel ball, and the lower end of steel ball contacts with the upper surface of pad, and the lower surface of pad contacts with annular workpieces.
The hardness of described lead, fairlead, steel ball and pad is HRC36~66.
The present invention's advantage is compared with prior art: the present invention is by providing multiple spot adjustable axial static pressure to annular workpieces, make workpiece when fixing, not be subject to radial load and tangential force, therefore the clamping deformation minimum of workpiece, can ensure dimensional accuracy, cylindricity that the inside and outside disc turning of workpiece is processed effectively; The present invention is by regulating each compression to put the screw-down torque of the first screw, and capable of regulating respectively compresses thrust a little, makes the distortion of workpiece controlled; Inside and outside fixture of the present invention can act on workpiece simultaneously, and while making inside and outside round processing and loading clamp conversion, work status remains unchanged, and can effectively ensure the axiality of the inside and outside disc processing of workpiece; The present invention is fixed by workpiece being applied to the adjustable axial static pressure of multiple spot, when simultaneously inside and outside round processing and loading clamp conversion, work status is constant, therefore splendid to the clamping deformation control effect of low rigidity, the processing of major diameter annular workpieces and many stacked combination processing of annular workpieces, and can ensure the uniformity that many combinations are processed.
Brief description of the drawings
Fig. 1 is annular workpieces inner fixing device schematic three dimensional views of the present invention;
Fig. 2 is annular workpieces inner fixing device structure chart of the present invention;
Fig. 3 is annular workpieces external fixer schematic three dimensional views of the present invention;
Fig. 4 is annular workpieces external fixer structure chart of the present invention;
Fig. 5-Fig. 7 is apparatus of the present invention method of work schematic flow sheet.
Detailed description of the invention
A kind of annular workpieces fixture of the present invention, comprises inner fixing device I and external fixer II, and described inner fixing device I structure as shown in Figure 1, 2, comprises interior retainer ring 11, interior hold-down ring 12 and interior connecting ring 13; Described interior retainer ring 11 is cirque structure, on interior retainer ring 11 axially circumference uniform distribution have for the fixing screw via hole of outside lathe table top 22; Described interior hold-down ring 12 is cirque structure, and on the outer ring surface of interior hold-down ring 12, circumference uniform distribution is useful on the compression point 10 of retainer ring class workpiece III; Described interior retainer ring 11 is fixedly connected with by interior connecting ring 13 with interior hold-down ring 12, and on interior connecting ring 13, circumference uniform distribution has radial direction through hole; Described interior retainer ring 11 equates with the external diameter of interior connecting ring 13, and the external diameter of described interior hold-down ring 12 is all greater than interior retainer ring 11 and interior connecting ring 13.
Described external fixer II structure as shown in Figure 3,4, comprises outer retainer ring 14, external compression ring 15 and outer connecting ring 16; Described outer retainer ring 14 is cirque structure, on outer retainer ring 14 axially circumference uniform distribution have for the fixing screw via hole of outside lathe table top 22; Described external compression ring 15 is cirque structure, and on the inner ring surface of external compression ring 15, circumference uniform distribution is useful on the compression point 10 of retainer ring class workpiece III; Described outer retainer ring 14 is fixedly connected with by outer connecting ring 16 with external compression ring 15, and on outer connecting ring 16, circumference uniform distribution has radial direction through hole; Described outer retainer ring 14 equates with the internal diameter of outer connecting ring 16, and the internal diameter of described external compression ring 15 is all less than outer retainer ring 14 and outer connecting ring 16.
As shown in Figure 2,4, described compression point 10 comprises that lead 2, fairlead 3, steel ball 4, pad 5, the first screw 6 form.The first screw 6 is arranged in the axial thread hole that compresses Dian10 center, and fairlead 3 is arranged in the coaxial counterbore of screwed hole below, fairlead 3 and described counterbore interference fit; Lead 2 and fairlead 3 matched in clearance, steel ball 4 and fairlead 3 interference fits, move vertically by fairlead 3 restricted guidance posts 2 and steel ball 4; The upper surface of lead 2 contacts with the first screw 6, the upper end in contact of the lower surface of lead 2 and steel ball 4, and the lower end of steel ball 4 contacts with the upper surface of pad 5, and the lower surface of pad 5 contacts with annular workpieces III.While tightening the first screw 6, the first screw 6 promotes lead 2 and moves downward, and lead 2 promotes steel ball 4, and steel ball 4 compresses annular workpieces III by pad 5.Fairlead 3 restricted guidance posts 2 and steel ball 4 can only move along the direction that is parallel to annular workpieces III axis, and the screwing force of the first screw 5 is delivered on steel ball 4 by lead 2, and steel ball 4 produces axial compressive force; The first screw 6 can drive lead 2 to rotate while tightening, but steel ball 4 and lead 2 and pad 5 are and contact, can not rotate and produce horizontal component with lead 2, steel ball 4 compresses annular workpieces III by pad 5, final annular workpieces III is only subject to axial force, and is not subject to radial load and tangential force.The thrust of each compression point 10 is by regulating the screw-down torque of the first screw 6 adjustable.Described lead 2, fairlead 3, steel ball 4 are HRC36~66 with the hardness of pad 5.
With reference to the accompanying drawings, the concrete work of apparatus of the present invention is described below:
Step 1: as shown in Fig. 2,5, first annular workpieces III is placed on lathe table top 22, and the centering center of circle; Then adopt the second screw 21 that inner fixing device I is fixed on lathe table top 22; Put pad 5 into annular workpieces III upper surface corresponding each position that compresses point 10;
Step 2: utilize torque spanner to tighten each the first screw 6 substep reinforcings, complete fixing annular workpieces III; For guaranteeing that the distortion that annular workpieces III occurs in rundown process meets distortion threshold value, at annular workpieces III periphery frame dial gauge or amesdial IV, monitors annular workpieces III deformation in real time; Complete annular workpieces III fixing after, remove dial gauge or amesdial IV, carry out periphery turning processing;
Step 3: as shown in Fig. 2,4,6, pad 5 is placed on to the position of annular workpieces III upper surface corresponding external fixer II compression point 10; Then adopt the second screw 21 that external fixer II is fixed on lathe table top 22;
Step 4: utilize torque spanner to tighten each the first screw 6 substep reinforcings, complete fixing annular workpieces III; For guaranteeing that the distortion that annular workpieces III occurs in rundown process meets distortion threshold value, at annular workpieces III periphery frame dial gauge or amesdial IV, monitors annular workpieces III deformation by the side through hole on outer connecting ring 16 in real time;
Step 5: as shown in Fig. 2,4,7, complete annular workpieces III fixing after, remove dial gauge or amesdial IV, unclamp the first screw 6 on inner fixing device I, remove the second screw 21 on inner fixing device I, remove inner fixing device I, carry out inner headed face turning processing, finally complete the processing to annular workpieces III.
The content not being described in detail in description of the present invention belongs to those skilled in the art's known technology.

Claims (3)

1. an annular workpieces fixture, comprise inner fixing device (I) and external fixer (II), it is characterized in that: described inner fixing device (I) comprises interior retainer ring (11), interior hold-down ring (12) and interior connecting ring (13); Described interior retainer ring (11) is cirque structure, the upper axial circumference uniform distribution of interior retainer ring (11) have for the fixing screw via hole of outside lathe table top (22); Described interior hold-down ring (12) is cirque structure, and on the outer ring surface of interior hold-down ring (12), circumference uniform distribution is useful on the compression point (10) of retainer ring class workpiece (III); Described interior retainer ring (11) is fixedly connected with by interior connecting ring (13) with interior hold-down ring (12), and the upper circumference uniform distribution of interior connecting ring (13) has radial direction through hole; Described interior retainer ring (11) equates with the external diameter of interior connecting ring (13), and the external diameter of described interior hold-down ring (12) is all greater than interior retainer ring (11) and interior connecting ring (13);
Described external fixer (II) comprises outer retainer ring (14), external compression ring (15) and outer connecting ring (16); Described outer retainer ring (14) is cirque structure, the upper axial circumference uniform distribution of outer retainer ring (14) have for the fixing screw via hole of outside lathe table top (22); Described external compression ring (15) is cirque structure, and on the inner ring surface of external compression ring (15), circumference uniform distribution is useful on the compression point (10) of retainer ring class workpiece (III); Described outer retainer ring (14) is fixedly connected with by outer connecting ring (16) with external compression ring (15), and the upper circumference uniform distribution of outer connecting ring (16) has radial direction through hole; Described outer retainer ring (14) equates with the internal diameter of outer connecting ring (16), and the internal diameter of described external compression ring (15) is all less than outer retainer ring (14) and outer connecting ring (16).
2. a kind of annular workpieces fixture according to claim 1, is characterized in that: described compression point (10) comprises lead (2), fairlead (3), steel ball (4), pad (5), the first screw (6); The first screw (6) is arranged on and compresses in the axial thread hole located of point (10), and fairlead (3) is arranged on the axial counterbore that is positioned at above-mentioned screwed hole below, fairlead (3) and described counterbore interference fit; Lead (2) and steel ball (4) are installed in fairlead (3), lead (2) and fairlead (3) matched in clearance, steel ball (4) and fairlead (3) interference fits, move vertically by fairlead (3) restricted guidance post (2) and steel ball (4); The upper surface of lead (2) contacts with the first screw (6), the upper end in contact of the lower surface of lead (2) and steel ball (4), the lower end of steel ball (4) contacts with the upper surface of pad (5), and the lower surface of pad (5) contacts with annular workpieces (III).
3. a kind of annular workpieces fixture according to claim 1, is characterized in that: described lead (2), fairlead (3), steel ball (4) are HRC36~66 with the hardness of pad (5).
CN201410199277.1A 2014-05-12 2014-05-12 A kind of annular workpieces fixture Active CN103949917B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
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Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201410199277.1A CN103949917B (en) 2014-05-12 2014-05-12 A kind of annular workpieces fixture

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CN103949917B CN103949917B (en) 2016-03-02

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106425579A (en) * 2016-11-16 2017-02-22 四川省自贡市海川实业有限公司 Closed integral blade disc machining clamping system
CN106425568A (en) * 2016-10-25 2017-02-22 江苏北方湖光光电有限公司 Clamping method and device for balancing locking force from bottom to top
CN112604604A (en) * 2021-01-22 2021-04-06 河南黄河田中科美压力设备有限公司 Steel ring and big cushion block connecting device of cubic apparatus diamond synthetic press
CN113523854A (en) * 2021-07-30 2021-10-22 西北机器有限公司 Machining tool and machining method for thin-wall rotating curved surface part

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19860013C2 (en) * 1998-12-23 2000-11-02 Gemeinschaftskernkraftwerk Gro Device for clamping a sealing ring on a machine tool
CN201124305Y (en) * 2007-12-21 2008-10-01 哈尔滨汽轮机厂有限责任公司 Clamping bulkhead for rotation of steam turbine shaft type thin wall parts
CN201645194U (en) * 2010-04-22 2010-11-24 四川柳河齿轮有限公司 Clamping device for processing of excircle thin wall part
CN202479842U (en) * 2012-03-08 2012-10-10 上海汇大机械制造有限公司 Pressing device
CN103302019A (en) * 2013-06-05 2013-09-18 中国矿业大学 Filling mining solid material screening device

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19860013C2 (en) * 1998-12-23 2000-11-02 Gemeinschaftskernkraftwerk Gro Device for clamping a sealing ring on a machine tool
CN201124305Y (en) * 2007-12-21 2008-10-01 哈尔滨汽轮机厂有限责任公司 Clamping bulkhead for rotation of steam turbine shaft type thin wall parts
CN201645194U (en) * 2010-04-22 2010-11-24 四川柳河齿轮有限公司 Clamping device for processing of excircle thin wall part
CN202479842U (en) * 2012-03-08 2012-10-10 上海汇大机械制造有限公司 Pressing device
CN103302019A (en) * 2013-06-05 2013-09-18 中国矿业大学 Filling mining solid material screening device

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106425568A (en) * 2016-10-25 2017-02-22 江苏北方湖光光电有限公司 Clamping method and device for balancing locking force from bottom to top
CN106425579A (en) * 2016-11-16 2017-02-22 四川省自贡市海川实业有限公司 Closed integral blade disc machining clamping system
CN112604604A (en) * 2021-01-22 2021-04-06 河南黄河田中科美压力设备有限公司 Steel ring and big cushion block connecting device of cubic apparatus diamond synthetic press
CN112604604B (en) * 2021-01-22 2022-01-07 河南黄河田中科美压力设备有限公司 Steel ring and big cushion block connecting device of cubic apparatus diamond synthetic press
CN113523854A (en) * 2021-07-30 2021-10-22 西北机器有限公司 Machining tool and machining method for thin-wall rotating curved surface part

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Publication number Publication date
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Effective date of registration: 20200630

Address after: 102600 No.7 Haixin Road, Huangcun Town, Daxing District, Beijing

Co-patentee after: BEIJING Research Institute OF SPATIAL MECHANICAL & ELECTRICAL TECHNOLOGY

Patentee after: BEIJING AEROSPACE HEZHONG TECHNOLOGY DEV Co.,Ltd.

Address before: 9201 box 5, box 1, South Dahongmen Road, 100076, Beijing, Fengtai District

Patentee before: BEIJING Research Institute OF SPATIAL MECHANICAL & ELECTRICAL TECHNOLOGY

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