CN104191298B - A kind of two ends floating self-centering fixture - Google Patents

A kind of two ends floating self-centering fixture Download PDF

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Publication number
CN104191298B
CN104191298B CN201410460113.XA CN201410460113A CN104191298B CN 104191298 B CN104191298 B CN 104191298B CN 201410460113 A CN201410460113 A CN 201410460113A CN 104191298 B CN104191298 B CN 104191298B
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China
Prior art keywords
spring
housing
centering
centring means
fixed
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CN201410460113.XA
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CN104191298A (en
Inventor
许龙
陈丽
花耀君
钱毅刚
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WUXI RUIZHEN PRECISION MACHINERY Co Ltd
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WUXI RUIZHEN PRECISION MACHINERY Co Ltd
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Priority to CN201410460113.XA priority Critical patent/CN104191298B/en
Publication of CN104191298A publication Critical patent/CN104191298A/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
    • B23Q3/18Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine for positioning only
    • B23Q3/183Centering devices

Abstract

The invention discloses a kind of two ends floating self-centering fixture, including base positioner and centring means, base positioner is positioned at the lower section of centring means, described base positioner includes base, footstock, locating ring and clamp body, locating ring it is cased with outside footstock, ensureing that base is concentric with footstock, base and footstock are fixed on clamp body;Described centring means is divided into the lower centring means for correcting lower end, the central transmission device being corrected for the upper centring means and control centring means correcting upper end.Have an advantage in that: the present invention can correct upper and lower two dead eyes simultaneously, meets the process requirements of this kind of part.

Description

A kind of two ends floating self-centering fixture
Technical field
The present invention relates to a kind of floating self-centering fixture, particularly to a kind of two ends floating self-centering fixture.
Background technology
In technological equipment, self-centering fixture uses widely, and generally, self-centering fixture can correct a hole.But sprocket drive spindle hole in some shell parts, when will correct upper and lower two bearings hole, common self-centering fixture, only correction one hole of below or above, sometimes just have no idea to meet process requirements, cause that hole machined surplus not being corrected is uneven, it is impossible to meet prescription.
Summary of the invention
It is an object of the invention to provide a kind of two ends floating self-centering fixture, to solve the ubiquitous problem that cannot correct upper and lower two dead eyes of prior art simultaneously.
For achieving the above object, the present invention is achieved through the following technical solutions:
A kind of two ends floating self-centering fixture, including base positioner and centring means, base positioner is positioned at the lower section of centring means, described base positioner includes base, footstock, locating ring and clamp body, locating ring it is cased with outside footstock, ensureing that base is concentric with footstock, base and footstock are fixed on clamp body;Described centring means is divided into the lower centring means for correcting lower end, the central transmission device being corrected for the upper centring means and control centring means correcting upper end.
Especially, described lower centring means includes lower centering take-up housing, connection seat, directed big slide block, spring C;Base is fixed with lower centering take-up housing, lower centering take-up housing is fixed with connection seat;Between base, lower centering take-up housing, connection seat with seam position assurance with one heart, it is screwed;Equipped with the big slide block of orientation in equally distributed three grooves on lower centering take-up housing, equipped with spring C on the big slide block of each orientation, spring force can be regulated by screw.
Especially, described upper centring means includes centering take-up housing, lid, directed small slide block, spring A;Lower centering take-up housing is fixed with connection seat, connects and seat is fixed with centering take-up housing, upper centering take-up housing is fixed with lid;Connect between seat, upper centering take-up housing, lid concentric with seam position assurance, be screwed;Equipped with directed small slide block in equally distributed three grooves on upper centering take-up housing, equipped with spring A on each directed small slide block, spring force can be regulated by screw.
Especially, described central transmission device includes spring E, regulates screw, pull bar, hollow oil cylinder, cushion block, baffle plate, tapered axle, spring B, spring D, Axis Tripod, cover plate, nut;Equipped with spring E in footstock, regulating screw and can regulate spring force size, have pull bar in footstock on spring E, pull bar is sequentially arranged with nut, hollow oil cylinder, cushion block, baffle plate, tapered axle, spring B, Axis Tripod, cover plate, nut from the bottom up;Wherein cushion block is fixed on the flange face of hollow oil cylinder, and baffle plate is fixed on the lower surface of tapered axle, and cover plate is fixed on Axis Tripod;Spring D is had between baffle plate and lower centering take-up housing.
The beneficial effects of the present invention is: the present invention can correct upper and lower two dead eyes simultaneously, meets the process requirements of this kind of part.
Accompanying drawing explanation
Fig. 1 is the front view of a kind of two ends of present invention floating self-centering fixture.
Fig. 2 is the top view of a kind of two ends of present invention floating self-centering fixture.
Fig. 3 is the front view after the clamping gear chamber housing of a kind of two ends of present invention floating self-centering fixture.
Fig. 4 is the releasing orientation figure of a kind of two ends of present invention floating self-centering fixture.
Wherein, the symbol description of Fig. 1, Fig. 2, Fig. 3, Fig. 4 is as follows:
1, footstock, 2, locating ring, 3, base, 4, cushion block, 5, baffle plate, 6, tapered axle, 7, lower centering take-up housing, 8, directed big slide block, 9, seat is connected, 10, upper centering take-up housing, 11, cover plate, 12, lid, 13, Axis Tripod, 14, directed small slide block, 15, spring A, 16, pull bar, 17, spring B, 18, spring C, 19, spring D, 20, hollow oil cylinder, 21, spring E, 22, regulate screw, 23, gear chamber housing, 24, clamp body.
Detailed description of the invention
As shown in Figure 1, Figure 2, Figure 3, Figure 4, for front view and fixture releasing orientation figure after the front view of a kind of two ends of present invention floating self-centering fixture, top view, clamping gear chamber housing.
A kind of two ends floating self-centering fixture, including base positioner and centring means, base positioner is positioned at the lower section of centring means, described base positioner includes base 3, footstock 1, locating ring 2 and clamp body 24, locating ring 2 it is cased with outside footstock 1, ensureing that base 3 is concentric with footstock 1, base 3 and footstock 1 are fixed on clamp body 24;Described centring means is divided into the lower centring means for correcting lower end, the central transmission device being corrected for the upper centring means and control centring means correcting upper end.
Lower centring means: include lower centering take-up housing 7, connection seat 9, directed big slide block 8, spring C18;Base 3 is fixed with lower centering take-up housing 7, lower centering take-up housing is fixed with connection seat 9;Between base 3, lower centering take-up housing 7, connection seat 9 with seam position assurance with one heart, it is screwed;Equipped with the big slide block 8 of orientation in three grooves uniform on lower centering take-up housing 7, equipped with spring C18 on the big slide block 8 of each orientation, spring force can be regulated by screw.
Upper centring means: include centering take-up housing 10, lid 12, directed small slide block 14, spring A15;Lower centering take-up housing is fixed with connection seat 9, connects and seat 9 is fixed with centering take-up housing 10, upper centering take-up housing 10 is fixed with lid 12;Connect between seat 9, upper centering take-up housing 10, lid 12 concentric with seam position assurance, be screwed;Equipped with directed small slide block 14 in three grooves uniform on upper centering take-up housing 10, equipped with spring A15 on each directed small slide block, spring force spring force can be regulated by screw.Equipped with directed small slide block 14 in three grooves uniform on lid 12, equipped with spring A15 on each directed small slide block 14, spring force can be regulated by screw.
Central transmission device: include spring E21, regulate screw 22, pull bar 16, hollow oil cylinder 20, cushion block 4, baffle plate 5, tapered axle 6, spring B 17, spring D19, Axis Tripod 13, cover plate 11, nut;Wherein equipped with spring E21 in footstock 1, regulate screw 22 and can regulate spring force size, having pull bar 16 in footstock 1 on spring E21, pull bar 16 is sequentially arranged with nut, hollow oil cylinder 20, cushion block 4, baffle plate 5, Lateral Thrust Unit 6, spring B 17, Lateral Thrust Unit 13, cover plate 11, nut from the bottom up;Cushion block 4 is fixed on the flange face of hollow oil cylinder 20, and baffle plate 5 is fixed on the lower surface of tapered axle 6, and cover plate 11 is fixed on Axis Tripod 13;Spring D19 is had between baffle plate 5 and lower centering take-up housing.
When the present invention is in releasing orientation, namely when all slide blocks are all retracted mode, load onto gear chamber housing 23, logical upper oil pressure, hollow oil cylinder 20 action, piston rod extends downwardly from, driving pull bar 16 to move downward, pull bar 16 drives the Axis Tripod 13 of upper end to move downward, and directed small slide block 14 is under the effect of the conical surface, protruding, the hole wall of contact gear chamber housing 23 upper end.Pull bar 16 cannot continue to move downward, now piston rod continues to extend downwardly from, owing to pull bar 16 is motionless, then the cylinder body of hollow oil cylinder 20 moves upward, and drives cushion block 4 to move upward, cushion block 4 promotes tapered axle 6 to move upward, directed big slide block 8 is protruding under the effect of the conical surface, the hole wall of contact gear chamber housing 23 lower end, and the hole of two bearings up and down of gear chamber housing 23 reaches self-centering position simultaneously, in conjunction with other location condition, it is possible to gear chamber housing 23 is positioned.
When hollow oil cylinder 20 unclamps, when namely piston rod protrudes upward, pull bar 16, under the effect of spring E21, moves upward, and Axis Tripod 13 moves upward, and directed small slide block 14 is retracted under the effect of spring A15.Tapered axle 6 is at the moved downward of spring B 17, spring D19, and directed big slide block 8 is retracted under the effect of spring C18.
There are two groups of orientation small slide blocks upper end of the present invention, it is possible to the gear chamber housing 23 of compatible two kinds of differing heights.

Claims (4)

1. a two ends floating self-centering fixture, including base positioner and centring means, base positioner is positioned at the lower section of centring means, it is characterized in that: described base positioner includes base (3), footstock (1), locating ring (2) and clamp body (24), footstock (1) outside is cased with locating ring (2), ensureing that base (3) is concentric with footstock (1), base (3) and footstock (1) are fixed on clamp body (24);Described centring means is divided into the lower centring means for correcting lower end, the central transmission device being corrected for the upper centring means and control centring means correcting upper end.
2. two ends as claimed in claim 1 floating self-centering fixture, it is characterised in that: described lower centring means includes lower centering take-up housing (7), connection seat (9), directed big slide block (8), spring C(18);Base (3) is fixed with lower centering take-up housing (7), lower centering take-up housing is fixed with connection seat (9);Between base (3), lower centering take-up housing (7), connection seat (9) with seam position assurance with one heart, it is screwed;Equipped with the big slide block of orientation (8) in upper equally distributed three grooves of lower centering take-up housing (7), equipped with spring C(18 in the big slide block of each orientation (8)), spring force is regulated by screw.
3. two ends as claimed in claim 2 floating self-centering fixture, it is characterised in that: described upper centring means includes centering take-up housing (10), lid (12), directed small slide block (14), spring A(15);Lower centering take-up housing is fixed with connection seat (9), connects and seat (9) is fixed with centering take-up housing (10), upper centering take-up housing (10) is fixed with lid (12);Connect between seat (9), upper centering take-up housing (10), lid (12) concentric with seam position assurance, be screwed;Equipped with directed small slide block (14) in upper equally distributed three grooves of upper centering take-up housing (10), equipped with spring A(15 on each directed small slide block), spring force is regulated by screw.
4. two ends as claimed in claim 3 floating self-centering fixture, it is characterised in that: described central transmission device includes spring E(21), regulate screw (22), pull bar (16), hollow oil cylinder (20), cushion block (4), baffle plate (5), tapered axle (6), spring B (17), spring D(19), Axis Tripod (13), cover plate (11), nut;Equipped with spring E(21 in footstock (1)), regulate screw (22) and spring force size can be regulated, spring E(21 in footstock (1)) on have pull bar (16), pull bar (16) to be sequentially arranged with nut, hollow oil cylinder (20), cushion block (4), baffle plate (5), tapered axle (6), spring B (17), Axis Tripod (13), cover plate (11), nut from the bottom up;Wherein cushion block (4) is fixed on the flange face of hollow oil cylinder (20), and baffle plate (5) is fixed on the lower surface of tapered axle (6), and cover plate (11) is fixed on Axis Tripod (13);Spring D(19 is had) between baffle plate (5) and lower centering take-up housing (7).
CN201410460113.XA 2014-09-11 2014-09-11 A kind of two ends floating self-centering fixture Active CN104191298B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201410460113.XA CN104191298B (en) 2014-09-11 2014-09-11 A kind of two ends floating self-centering fixture

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201410460113.XA CN104191298B (en) 2014-09-11 2014-09-11 A kind of two ends floating self-centering fixture

Publications (2)

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CN104191298A CN104191298A (en) 2014-12-10
CN104191298B true CN104191298B (en) 2016-07-13

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Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2215375Y (en) * 1994-06-28 1995-12-20 国营庆安宇航设备公司 Multi-piece floating presure hold-down device
CN2741715Y (en) * 2004-12-02 2005-11-23 常州工业技术学院机电研究所 Self contering clamp device for digital control cardan joint bell shell inner ball surface grinder
AT506366B1 (en) * 2008-01-30 2011-04-15 Peter Poellabauer DEVICE FOR AXIS CENTERING HOLLOW BODIES
JP5283019B2 (en) * 2010-11-03 2013-09-04 株式会社城北工範製作所 Core corrector for machine tools
CN201950481U (en) * 2011-03-01 2011-08-31 上海东方泵业(集团)有限公司 Self-centering floating clamp
CN203778799U (en) * 2014-02-23 2014-08-20 张鸿来 Manual self-centering clamp for thin-walled sleeve
CN204094537U (en) * 2014-09-11 2015-01-14 无锡瑞真精密机械有限公司 A kind of two ends floating self-centering fixture

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Address after: 214037 Wuxi province Jinshan Industrial Park in the north of the north science and Technology Industrial Park, building 2, a total of

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Applicant before: Wuxi Rui Zhen precision optical machinery Co., Ltd

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