CN103737384A - Limiting looseness-prevention high-precision fine adjustment fixture - Google Patents
Limiting looseness-prevention high-precision fine adjustment fixture Download PDFInfo
- Publication number
- CN103737384A CN103737384A CN201310672593.1A CN201310672593A CN103737384A CN 103737384 A CN103737384 A CN 103737384A CN 201310672593 A CN201310672593 A CN 201310672593A CN 103737384 A CN103737384 A CN 103737384A
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- China
- Prior art keywords
- spring
- clamping fixture
- screw rod
- fixture seat
- fixed block
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, 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
- B23Q3/00—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine
- B23Q3/02—Devices 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
- B23Q3/06—Work-clamping means
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, 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
- B23Q2703/00—Work clamping
- B23Q2703/02—Work clamping means
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- Mechanical Engineering (AREA)
- Clamps And Clips (AREA)
Abstract
The invention discloses a limiting looseness-prevention high-precision fine adjustment fixture, and belongs to the field of fixtures. The limiting looseness-prevention high-precision fine adjustment fixture comprises a fixture base, a left fixing block, a left screw, a left clamping block, a right clamping block, a guide rod and a right fixing block. The fixture base is provided with a dovetail groove, and the left fixing block and the right fixing block are arranged at the two ends of the dovetail groove. The limiting looseness-prevention high-precision fine adjustment fixture further comprises a driven connecting rod, a left spring, a driving connecting rod, a right spring, a transmission rod, a right screw, a handle and limiting looseness-prevention devices. The limiting looseness-prevention devices are arranged on the right screw and the left screw respectively. One end of the driven connecting rod is hinged to the fixture base, the other end of the driven connecting rod is connected with the driving connecting rod through the transmission rod, and the end, close to a hinge, of the driving connecting rod is connected with the guide rod. The limiting looseness-prevention high-precision fine adjustment fixture solves the problems that in an existing fixture, fine adjustment is not easy, locating precision is low and looseness is prone to occurring, and has the advantages of being simple in structure, reasonable in design and easy to manufacture.
Description
Technical field
The invention belongs to fixture field, more particularly, relate to a kind of restriction anti-loosing type 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 that causes for existing fixture is difficult for, positioning precision is not high, easy loosening problem, the invention provides a kind of anti-loosing type high precision fine tuning fixture that limits.
For addressing the above problem, the present invention adopts following technical scheme.
A kind of restriction anti-loosing type high precision fine tuning fixture, comprise 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 at dovetail groove two ends, be provided with left fixed block and right fixed block, left fixed block is provided with screwed hole, 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, guide rod one end and right clamp are connected, the other end is assemblied in the unthreaded hole of right fixed block, also comprise follower link, left spring, drive connecting rod, right spring, transmission lever, right screw rod, handle, restriction locking device, on described right screw rod and left screw rod, be equipped with restriction locking 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, 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, the other end is connected with clamping fixture seat.
Described restriction locking device is comprised of ratchet, roller, lever, spring, bolt, described ratchet is assemblied on left screw rod by key, the quantity of described lever is 2, divide and be located at ratchet both sides, and be all hinged on clamping fixture seat, and away from one end of clamping fixture seat, unthreaded hole be set at lever, described roller is connected through the hinge on lever, the two ends of described spring are connected on the lever of ratchet both sides, and described bolt is through the reserved unthreaded hole of lever.
Described spring is extension spring.
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 ratchet and roller to realize the locking effect to left screw rod and right screw rod, in the course of the work, the locking to screw rod due to ratchet and roller, has played the locking of left screw rod and right screw rod, and then makes fixture can not occur becoming flexible because of the effect of vibration and cutting force.
(3) the present invention adopts two symmetrical rollers, has eliminated radial load screw rod being caused because of locking effect, has improved the service life of fixture.
(4) the present invention is simple in structure, reasonable in design, is easy to manufacture.
Accompanying drawing explanation
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 that B in Fig. 1 is to view.
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-handle, 15-restriction locking device, 16-ratchet, 17-roller, 18-lever, 19-spring, 20-bolt.
The specific embodiment
Below in conjunction with accompanying drawing, describe the present invention.
As Fig. 1, Fig. 2, shown in Fig. 3, restriction anti-loosing type 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 at dovetail groove two ends, be provided with left fixed block 2 and right fixed block 7, 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, handle 14, restriction locking device 15, on described right screw rod 13 and left screw rod 3, be equipped with restriction locking device 15, 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, the other end is connected with clamping fixture seat 1.
Described restriction locking device 15 is comprised of ratchet 16, roller 17, lever 18, spring 19, bolt 20, described ratchet 16 is assemblied on left screw rod 3 by key, the quantity of described lever 18 is 2, divide and be located at ratchet 16 both sides, and be all hinged on clamping fixture seat 1, and away from one end of clamping fixture seat 1, unthreaded hole is set at lever 18, described roller 17 is connected through the hinge on lever 18, the two ends of described spring 19 are connected on the lever 18 of ratchet 16 both sides, and described bolt 20 is through the reserved unthreaded hole of lever 18.
Described spring 19 is extension spring.
As Fig. 1, Fig. 2, shown in Fig. 3, restriction anti-loosing type 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 at dovetail groove two ends, be provided with left fixed block 2 and right fixed block 7, 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, handle 14, restriction locking device 15, on described right screw rod 13 and left screw rod 3, be equipped with restriction locking device 15, 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, the other end is connected with clamping fixture seat 1.
Described restriction locking device 15 is comprised of ratchet 16, roller 17, lever 18, spring 19, bolt 20, described ratchet 16 is assemblied on left screw rod 3 by key, the quantity of described lever 18 is 2, divide and be located at ratchet 16 both sides, and be all hinged on clamping fixture seat 1, and away from one end of clamping fixture seat 1, unthreaded hole is set at lever 18, described roller 17 is connected through the hinge on lever 18, the two ends of described spring 19 are connected on the lever 18 of ratchet 16 both sides, and described bolt 20 is through the reserved unthreaded hole of lever 18.
Described left spring 9, right spring 11, spring 19 are extension spring, and three's pitch is identical, and cross section is circle.Described follower link 8 is same with the bar appearance of drive connecting rod 10.
Claims (3)
1. a restriction anti-loosing type 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 at dovetail groove two ends, be provided with left fixed block (2) and right fixed block (7), 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), handle (14), restriction locking device (15), on described right screw rod (13) and left screw rod (3), be equipped with restriction locking device (15), 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).
2. restriction anti-loosing type high precision fine tuning fixture according to claim 1, it is characterized in that, described restriction locking device (15) is by ratchet (16), roller (17), lever (18), spring (19), bolt (20) composition, described ratchet (16) is assemblied on left screw rod (3) by key, the quantity of described lever (18) is 2, divide and be located at ratchet (16) both sides, and be all hinged on clamping fixture seat (1), and away from one end of clamping fixture seat (1), unthreaded hole is set at lever (18), described roller (17) is connected through the hinge on lever (18), the two ends of described spring (19) are connected on the lever (18) of ratchet (16) both sides, described bolt (20) is through the reserved unthreaded hole of lever (18).
3. restriction anti-loosing type high precision fine tuning fixture according to claim 2, is characterized in that, described spring (19) is extension spring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310672593.1A CN103737384A (en) | 2013-12-12 | 2013-12-12 | Limiting looseness-prevention high-precision fine adjustment fixture |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310672593.1A CN103737384A (en) | 2013-12-12 | 2013-12-12 | Limiting looseness-prevention high-precision fine adjustment fixture |
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| Publication Number | Publication Date |
|---|---|
| CN103737384A true CN103737384A (en) | 2014-04-23 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310672593.1A Pending CN103737384A (en) | 2013-12-12 | 2013-12-12 | Limiting looseness-prevention high-precision fine adjustment fixture |
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| CN (1) | CN103737384A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103769885A (en) * | 2013-12-13 | 2014-05-07 | 芜湖市天雄新材料科技有限公司 | High-precision fine adjustment clamp |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20090008850A1 (en) * | 2007-07-02 | 2009-01-08 | Ferng-Jong Liou | Quick clamping fixture |
| CN103100884A (en) * | 2012-12-09 | 2013-05-15 | 重庆盾铭电磁阀有限公司 | Positioning device of gear shaft |
| CN203223529U (en) * | 2013-03-21 | 2013-10-02 | 佛山华工祥源环保包装有限公司 | Buffer type grooved pulley transmission mechanism |
| CN103433776A (en) * | 2013-08-22 | 2013-12-11 | 芜湖奕辰模具科技有限公司 | Composite fixture with measurable pressure |
| CN203726192U (en) * | 2013-12-12 | 2014-07-23 | 芜湖市天雄塑料科技有限公司 | Limit looseness preventing type high precision fine tuning clamp |
-
2013
- 2013-12-12 CN CN201310672593.1A patent/CN103737384A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20090008850A1 (en) * | 2007-07-02 | 2009-01-08 | Ferng-Jong Liou | Quick clamping fixture |
| CN103100884A (en) * | 2012-12-09 | 2013-05-15 | 重庆盾铭电磁阀有限公司 | Positioning device of gear shaft |
| CN203223529U (en) * | 2013-03-21 | 2013-10-02 | 佛山华工祥源环保包装有限公司 | Buffer type grooved pulley transmission mechanism |
| CN103433776A (en) * | 2013-08-22 | 2013-12-11 | 芜湖奕辰模具科技有限公司 | Composite fixture with measurable pressure |
| CN203726192U (en) * | 2013-12-12 | 2014-07-23 | 芜湖市天雄塑料科技有限公司 | Limit looseness preventing type high precision fine tuning clamp |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103769885A (en) * | 2013-12-13 | 2014-05-07 | 芜湖市天雄新材料科技有限公司 | High-precision fine adjustment clamp |
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| C06 | Publication | ||
| PB01 | Publication | ||
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Application publication date: 20140423 |