CN203738431U - Pressure-controllable fine-precision fine-tuning clamp with self-locking anti-looseness worm - Google Patents

Pressure-controllable fine-precision fine-tuning clamp with self-locking anti-looseness worm Download PDF

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Publication number
CN203738431U
CN203738431U CN201320826095.3U CN201320826095U CN203738431U CN 203738431 U CN203738431 U CN 203738431U CN 201320826095 U CN201320826095 U CN 201320826095U CN 203738431 U CN203738431 U CN 203738431U
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CN
China
Prior art keywords
clamp
worm screw
fixed block
screw rod
worm
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
CN201320826095.3U
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Chinese (zh)
Inventor
罗琳
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.)
WUHU XINRONG PIPE INDUSTRY SCIENCE & TECHNOLOGY Co Ltd
Original Assignee
WUHU XINRONG PIPE INDUSTRY SCIENCE & TECHNOLOGY Co Ltd
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Application filed by WUHU XINRONG PIPE INDUSTRY SCIENCE & TECHNOLOGY Co Ltd filed Critical WUHU XINRONG PIPE INDUSTRY SCIENCE & TECHNOLOGY Co Ltd
Priority to CN201320826095.3U priority Critical patent/CN203738431U/en
Application granted granted Critical
Publication of CN203738431U publication Critical patent/CN203738431U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

The utility model discloses a pressure-controllable fine-precision fine-tuning clamp with a self-locking anti-looseness worm, and belongs to the field of clamps. The clamp comprises a clamp base, a left fixing block, a left screw rod, a left clamping block, a right clamping block, a guide rod and a right fixing block, wherein a dove-tail slot is formed in the clamp base, and the left fixing block and the right fixing block are arranged at the two ends of the dove-tail slot. The clamp further comprises a driven connecting rod, a left spring, a drive connecting rod, a right spring, a transmission rod, a right screw rod, a handle, limit anti-looseness devices and a dial; the limit anti-looseness devices are arranged on both the right screw rod and the left screw rod, and the dial is arranged on the worm. The pressure-controllable fine-precision fine-tuning clamp with a self-locking anti-looseness worm solves the problems of the existing clamp that the fine tuning is not easy, the positioning precision is not high, the probability of looseness is high and the clamping force is not easy to control, and has the advantages of simple structure, reasonable design and easy manufacture.

Description

Pressure controllable type worm screw automatic locking anti-loosing high precision fine tuning fixture
Technical field
The invention belongs to fixture field, more particularly, relate to a kind of pressure controllable type worm screw automatic locking anti-loosing high precision fine tuning fixture for piece-holder.
Background technology
In machine industry, utilize lathe to process all kinds of workpiece, utilize clamping device that workpiece is fixed adding man-hour requirement, thereby realize cylindrical, end face, screw thread and the axial machining such as cut-out.For the not high part of machining accuracy, generally can directly on platen face, adjust and realize positioning and clamping, the position of part is determined in the setting that by machining coordinate is then.And for the higher workpiece of requirement on machining accuracy, must repeatedly proofread the relative position of workpiece and lathe tool, therefore must increase positioning precision.Plain clamp can not be finely tuned simultaneously, causes the control of clamping force to be difficult for, and too pine does not have positioning action, too tightly damages surface of the work, even compression failure workpiece.The vibration of lathe and the effect of cutting force in process simultaneously, causes fixture to occur loosening, and then because piece-holder power causes the loosening of workpiece not, has reduced machining accuracy, when serious, will cause workpiece to be thrown out of the generation of accident.
Summary of the invention
The fine setting causing for existing fixture is difficult for, positioning precision is not high, easy loosening, the uppity problem of chucking power, the invention provides a kind of pressure controllable type worm screw automatic locking anti-loosing high precision fine tuning fixture.
For addressing the above problem, the present invention adopts following technical scheme.
A kind of pressure controllable type worm screw automatic locking anti-loosing high precision fine tuning fixture, comprises clamping fixture seat, left fixed block, left screw rod, left clamp, right clamp, guide rod, right fixed block, on clamping fixture seat, be provided with dovetail groove, and be provided with left fixed block and right fixed block at dovetail groove two ends, and left fixed block is provided with screwed hole, and right fixed block is provided with unthreaded hole, left clamp and right clamp are all assemblied in the dovetail groove on clamping fixture seat, left screw rod one end and left clamp are connected, the threaded engagement of the other end and left fixed block, and guide rod one end and right clamp are connected, the other end is assemblied in the unthreaded hole of right fixed block, also comprises follower link, left spring, drive connecting rod, right spring, transmission lever, right screw rod, worm screw self-locking anti-loosing device, worm gear, worm screw, dial, on described right screw rod and left screw rod, be equipped with worm screw self-locking anti-loosing device, one end of described follower link is articulated with on clamping fixture seat, the other end is connected with drive connecting rod by transmission lever, its one end near hinge is connected with guide rod, described drive connecting rod one end is articulated with on clamping fixture seat, the other end is connected with right screw rod, described right screw rod is assemblied in the screwed hole of clamping fixture seat, and in its one end, handle is set, and described left spring one end is connected with follower link upper end, the other end is connected with clamping fixture seat, described right spring one end is connected with drive connecting rod lower end, and the other end is connected with clamping fixture seat, and described worm screw is provided with dial.
Described worm screw self-locking anti-loosing device is made up of worm gear and worm screw, and described worm gear is assemblied on left screw rod by key, and described worm screw is assemblied in clamping fixture seat by rolling bearing, and is meshed with worm gear.
The angle of spiral of described worm screw is less than the equivalent friction angle of the field of conjugate action of itself and worm gear, and described dial is provided with scale at its edge.
Than prior art, beneficial effect of the present invention is:
(1) the present invention utilizes lever principle, and larger input is converted into minimum displacement, and the convenient trace of realizing regulates, and makes positioning precision be improved simultaneously.
(2) the present invention utilizes worm geared self-locking performance to realize the locking of fixture, locking reliable and compact conformation.
(3) when the present invention adopts worm-drive locking, because worm geared gearratio is large, can produce minimum output with the input compared with large, therefore be conducive to the clamping fine setting of fixture, thereby make positioning precision higher.
(4) the present invention is provided with dial on worm screw, can be the in the situation that of clamp fast moving, and guarantee clamp in OK range, is unlikely to damage workpiece to the pressure of workpiece; During simultaneously Workpiece clamping for unlike material and size, the reading of dial is made statistical table, convenient while operating in the future as contrasting, thereby increase work efficiency.
(5) the present invention is simple in structure, reasonable in design, is easy to manufacture.
Brief description of the drawings
Fig. 1 is front view of the present invention;
Fig. 2 is the cutaway view along A-A line in Fig. 1;
Fig. 3 is the cutaway view along B-B line in Fig. 1.
In figure: 1-clamping fixture seat, 2-left fixed block, 3-left screw rod, 4-left clamp, 5-right clamp, 6-guide rod, 7-right fixed block, 8-follower link, 9-left spring, 10-drive connecting rod, 11-right spring, 12-transmission lever, 13-right screw rod, 14-worm screw self-locking anti-loosing device, 15-worm gear, 16-worm screw, 17-dial.
Detailed description of the invention
Describe the present invention below in conjunction with accompanying drawing.
As Fig. 1, Fig. 2, shown in Fig. 3, pressure controllable type worm screw automatic locking anti-loosing high precision fine tuning fixture comprises clamping fixture seat 1, left fixed block 2, left screw rod 3, left clamp 4, right clamp 5, guide rod 6, right fixed block 7, on clamping fixture seat 1, be provided with dovetail groove, and be provided with left fixed block 2 and right fixed block 7 at dovetail groove two ends, and left fixed block 2 is provided with screwed hole, and right fixed block 7 is provided with unthreaded hole, left clamp 4 and right clamp 5 are all assemblied in the dovetail groove on clamping fixture seat 1, left screw rod 3 one end and left clamp 4 are connected, the threaded engagement of the other end and left fixed block 2, and guide rod 6 one end and right clamp 5 are connected, the other end is assemblied in the unthreaded hole of right fixed block 7, also comprises follower link 8, left spring 9, drive connecting rod 10, right spring 11, transmission lever 12, right screw rod 13, worm screw self-locking anti-loosing device 14, worm gear 15, worm screw 16, dial 17, on described right screw rod 13 and left screw rod 3, be equipped with worm screw self-locking anti-loosing device 14, one end of described follower link 8 is articulated with on clamping fixture seat 1, the other end is connected with drive connecting rod 10 by transmission lever 12, its one end near hinge is connected with guide rod 6, described drive connecting rod 10 one end are articulated with on clamping fixture seat 1, the other end is connected with right screw rod 13, described right screw rod 13 is assemblied in the screwed hole of clamping fixture seat 1, and in its one end, handle 14 is set, described left spring 9 one end are connected with follower link 8 upper ends, the other end is connected with clamping fixture seat 1, described right spring 11 one end are connected with drive connecting rod 10 lower ends, and the other end is connected with clamping fixture seat 1, and described worm screw 16 is provided with dial 17.
Described worm screw self-locking anti-loosing device 14 is made up of worm gear 15 and worm screw 16, and described worm gear 15 is assemblied on left screw rod 3 by key, and described worm screw 16 is assemblied in clamping fixture seat 1 by rolling bearing, and is meshed with worm gear 15.
The angle of spiral of described worm screw 16 is less than the equivalent friction angle of the field of conjugate action of itself and worm gear 15, and described dial 17 is provided with scale at its edge.
embodiment 1
As Fig. 1, Fig. 2, shown in Fig. 3, pressure controllable type worm screw automatic locking anti-loosing high precision fine tuning fixture comprises clamping fixture seat 1, left fixed block 2, left screw rod 3, left clamp 4, right clamp 5, guide rod 6, right fixed block 7, on clamping fixture seat 1, be provided with dovetail groove, and be provided with left fixed block 2 and right fixed block 7 at dovetail groove two ends, and left fixed block 2 is provided with screwed hole, and right fixed block 7 is provided with unthreaded hole, left clamp 4 and right clamp 5 are all assemblied in the dovetail groove on clamping fixture seat 1, left screw rod 3 one end and left clamp 4 are connected, the threaded engagement of the other end and left fixed block 2, and guide rod 6 one end and right clamp 5 are connected, the other end is assemblied in the unthreaded hole of right fixed block 7, also comprises follower link 8, left spring 9, drive connecting rod 10, right spring 11, transmission lever 12, right screw rod 13, worm screw self-locking anti-loosing device 14, worm gear 15, worm screw 16, dial 17, on described right screw rod 13 and left screw rod 3, be equipped with worm screw self-locking anti-loosing device 14, one end of described follower link 8 is articulated with on clamping fixture seat 1, the other end is connected with drive connecting rod 10 by transmission lever 12, its one end near hinge is connected with guide rod 6, described drive connecting rod 10 one end are articulated with on clamping fixture seat 1, the other end is connected with right screw rod 13, described right screw rod 13 is assemblied in the screwed hole of clamping fixture seat 1, and in its one end, handle 14 is set, described left spring 9 one end are connected with follower link 8 upper ends, the other end is connected with clamping fixture seat 1, described right spring 11 one end are connected with drive connecting rod 10 lower ends, and the other end is connected with clamping fixture seat 1, and described worm screw 16 is provided with dial 17.
Described worm screw self-locking anti-loosing device 14 is made up of worm gear 15 and worm screw 16, and described worm gear 15 is assemblied on left screw rod 3 by key, and described worm screw 16 is assemblied in clamping fixture seat 1 by rolling bearing, and is meshed with worm gear 15.
The angle of spiral of described worm screw 16 is 12 °, and the equivalent friction angle of the field of conjugate action of itself and worm gear 15 is 15 °, and described dial 17 is provided with scale at its edge.
embodiment 2
As Fig. 1, Fig. 2, shown in Fig. 3, pressure controllable type worm screw automatic locking anti-loosing high precision fine tuning fixture comprises clamping fixture seat 1, left fixed block 2, left screw rod 3, left clamp 4, right clamp 5, guide rod 6, right fixed block 7, on clamping fixture seat 1, be provided with dovetail groove, and be provided with left fixed block 2 and right fixed block 7 at dovetail groove two ends, and left fixed block 2 is provided with screwed hole, and right fixed block 7 is provided with unthreaded hole, left clamp 4 and right clamp 5 are all assemblied in the dovetail groove on clamping fixture seat 1, left screw rod 3 one end and left clamp 4 are connected, the threaded engagement of the other end and left fixed block 2, and guide rod 6 one end and right clamp 5 are connected, the other end is assemblied in the unthreaded hole of right fixed block 7, also comprises follower link 8, left spring 9, drive connecting rod 10, right spring 11, transmission lever 12, right screw rod 13, worm screw self-locking anti-loosing device 14, worm gear 15, worm screw 16, dial 17, on described right screw rod 13 and left screw rod 3, be equipped with worm screw self-locking anti-loosing device 14, one end of described follower link 8 is articulated with on clamping fixture seat 1, the other end is connected with drive connecting rod 10 by transmission lever 12, its one end near hinge is connected with guide rod 6, described drive connecting rod 10 one end are articulated with on clamping fixture seat 1, the other end is connected with right screw rod 13, described right screw rod 13 is assemblied in the screwed hole of clamping fixture seat 1, and in its one end, handle 14 is set, described left spring 9 one end are connected with follower link 8 upper ends, the other end is connected with clamping fixture seat 1, described right spring 11 one end are connected with drive connecting rod 10 lower ends, and the other end is connected with clamping fixture seat 1, and described worm screw 16 is provided with dial 17.
Described worm screw self-locking anti-loosing device 14 is made up of worm gear 15 and worm screw 16, and described worm gear 15 is assemblied on left screw rod 3 by key, and described worm screw 16 is assemblied in clamping fixture seat 1 by rolling bearing, and is meshed with worm gear 15.
The angle of spiral of described worm screw 16 is 11 °, and the equivalent friction angle of the field of conjugate action of itself and worm gear 15 is 13 °, and described dial 17 is provided with scale at its edge.

Claims (4)

1. a pressure controllable type worm screw automatic locking anti-loosing high precision fine tuning fixture, comprise clamping fixture seat (1), left fixed block (2), left screw rod (3), left clamp (4), right clamp (5), guide rod (6), right fixed block (7), clamping fixture seat is provided with dovetail groove on (1), and be provided with left fixed block (2) and right fixed block (7) at dovetail groove two ends, left fixed block (2) is provided with screwed hole, right fixed block (7) is provided with unthreaded hole, left clamp (4) and right clamp (5) are all assemblied in the dovetail groove on clamping fixture seat (1), left screw rod (3) one end and left clamp (4) are connected, the threaded engagement of the other end and left fixed block (2), guide rod (6) one end and right clamp (5) are connected, the other end is assemblied in the unthreaded hole of right fixed block (7), it is characterized in that, also comprise follower link (8), left spring (9), drive connecting rod (10), right spring (11), transmission lever (12), right screw rod (13), worm screw self-locking anti-loosing device (14), worm gear (15), worm screw (16), dial (17), on described right screw rod (13) and left screw rod (3), be equipped with worm screw self-locking anti-loosing device (14), one end of described follower link (8) is articulated with on clamping fixture seat (1), the other end is connected with drive connecting rod (10) by transmission lever (12), its one end near hinge is connected with guide rod (6), described drive connecting rod (10) one end is articulated with on clamping fixture seat (1), the other end is connected with right screw rod (13), described right screw rod (13) is assemblied in the screwed hole of clamping fixture seat (1), and handle (14) is set in its one end, described left spring (9) one end is connected with follower link (8) upper end, the other end is connected with clamping fixture seat (1), described right spring (11) one end is connected with drive connecting rod (10) lower end, the other end is connected with clamping fixture seat (1), described worm screw (16) is provided with dial (17).
2. pressure controllable type worm screw automatic locking anti-loosing high precision fine tuning fixture according to claim 1, it is characterized in that, described worm screw self-locking anti-loosing device (14) is made up of worm gear (15) and worm screw (16), described worm gear (15) is assemblied on left screw rod (3) by key, described worm screw (16) is assemblied in clamping fixture seat (1) by rolling bearing, and is meshed with worm gear (15).
3. pressure controllable type worm screw automatic locking anti-loosing high precision fine tuning fixture according to claim 1 and 2, is characterized in that, the angle of spiral of described worm screw (16) is less than the equivalent friction angle of the field of conjugate action of itself and worm gear (15).
4. pressure controllable type worm screw automatic locking anti-loosing high precision fine tuning fixture according to claim 1, is characterized in that, described dial (17) is provided with scale at its edge.
CN201320826095.3U 2013-12-16 2013-12-16 Pressure-controllable fine-precision fine-tuning clamp with self-locking anti-looseness worm Expired - Fee Related CN203738431U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201320826095.3U CN203738431U (en) 2013-12-16 2013-12-16 Pressure-controllable fine-precision fine-tuning clamp with self-locking anti-looseness worm

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201320826095.3U CN203738431U (en) 2013-12-16 2013-12-16 Pressure-controllable fine-precision fine-tuning clamp with self-locking anti-looseness worm

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CN203738431U true CN203738431U (en) 2014-07-30

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103722413A (en) * 2013-12-16 2014-04-16 芜湖欣荣管业科技有限公司 Controllable pressure worm-type self-latching locking high-precision fine adjustment clamp

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103722413A (en) * 2013-12-16 2014-04-16 芜湖欣荣管业科技有限公司 Controllable pressure worm-type self-latching locking high-precision fine adjustment clamp

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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: 20140730

Termination date: 20141216

EXPY Termination of patent right or utility model