CN103769918A - Pawl looseness prevention fine-adjustment clamp with measurable pressure - Google Patents
Pawl looseness prevention fine-adjustment clamp with measurable pressure Download PDFInfo
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- CN103769918A CN103769918A CN201310681055.9A CN201310681055A CN103769918A CN 103769918 A CN103769918 A CN 103769918A CN 201310681055 A CN201310681055 A CN 201310681055A CN 103769918 A CN103769918 A CN 103769918A
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- Prior art keywords
- fine
- clamp
- ratchet
- fixed block
- screw rod
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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
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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
- B23Q17/00—Arrangements for observing, indicating or measuring on machine tools
- B23Q17/002—Arrangements for observing, indicating or measuring on machine tools for indicating or measuring the holding action of work or tool holders
- B23Q17/005—Arrangements for observing, indicating or measuring on machine tools for indicating or measuring the holding action of work or tool holders by measuring a force, a pressure or a deformation
-
- 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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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Clamps And Clips (AREA)
Abstract
The invention discloses a pawl looseness prevention fine-adjustment clamp with measurable pressure, and belongs to the field of clamps. The pawl looseness prevention fine-adjustment clamp with the measurable pressure comprises a clamp base, a left fixing block, a large screw, a left clamping block, a right clamping block, a guide rod, a fine-adjustment screw, a right fixing block, pawl looseness prevention devices, a gear, an outer ring, a spring, a pawl, a bolt and sensors. The two ends of the fine-adjustment screw are provided with threads, one end of the fine-adjustment screw is assembled in a threaded hole of the guide rod, and the other end of the fine-adjustment screw is meshed with a thread of the right fixing block; the rotation directions of the threads at the two ends of the fine-adjustment screw are the same; the large screw and the fine-adjustment screw are provided with the pawl looseness prevention devices respectively; the left clamping block and the right clamping block are provided with the sensors respectively. The pawl looseness prevention fine-adjustment clamp with the measurable pressure solves the problems that for an existing clamp, fine adjustment cannot be easily carried out, locating accuracy is not high, looseness occurs easily, and the clamping force cannot be easily controlled. The pawl looseness prevention fine-adjustment clamp with the measurable pressure 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 pressure measurable type ratchet anti-loosing type 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 measurable type ratchet anti-loosing type fine tuning fixture.
For addressing the above problem, the present invention adopts following technical scheme.
A kind of pressure measurable type ratchet anti-loosing type fine tuning fixture, comprises clamping fixture seat, left fixed block, large screw rod, left clamp, right clamp, guide rod, fine setting screw rod, right fixed block, ratchet locking device, gear, outer ring, spring, ratchet, screw, sensor, on described clamping fixture seat, be provided with dovetail groove, and be provided with left fixed block and right fixed block at dovetail groove two ends, on described left fixed block and right fixed block, be equipped with screwed hole, described left clamp and right clamp are all assemblied in the dovetail groove on clamping fixture seat, described large screw rod one end and left clamp are connected, the threaded engagement of the other end and left fixed block, described guide rod one end and right clamp are connected, the other end is provided with screwed hole, described fine setting screw rod two ends are equipped with screw thread, its one end is assemblied in the screwed hole of guide rod, the threaded engagement of the other end and right fixed block, and the thread rotary orientation at described fine setting screw rod two ends is identical, on described large screw rod and fine setting screw rod, be equipped with ratchet locking device, described ratchet locking device is by gear, outer ring, spring, ratchet, screw composition, described gear is assemblied on large screw rod by key, described outer ring is fixed on clamping fixture seat, and be provided with screwed hole and spring, one end of described ratchet is hinged on outer ring, other end linking springs, and described screw is assemblied in the screwed hole of outer ring, and be pressed on ratchet, on described left clamp and right clamp, be equipped with sensor.
Described sensor is pressure sensor, and described spring is extension spring.
Than prior art, beneficial effect of the present invention is:
(1) the present invention utilizes differential attachment to carry out clamping, can utilize larger input to produce minimum displacement, and the convenient trace of realizing regulates, and makes positioning precision be improved simultaneously.
(2) the present invention utilizes gear and ratchet to realize the locking effect to large screw rod and fine setting screw rod, in the course of the work, the locking to screw rod due to gear and ratchet, has played the locking of screw rod, and then makes fixture can not occur becoming flexible because of the effect of vibration and cutting force.
(3) the present invention is provided with pressure sensor on clamp, can be the in the situation that of clamp fast moving, and assurance clamp in OK range, is unlikely to damage workpiece to the pressure of workpiece; Pressure during simultaneously Workpiece clamping for unlike material and size is made statistical table, convenient while operating in the future as contrasting, thereby increase work efficiency.
(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 the cutaway view along B-B line in Fig. 1;
Fig. 4 is the cutaway view along C-C line in Fig. 1.
In figure: 1-clamping fixture seat, 2-left fixed block, 3-large screw rod, 4-left clamp, 5-right clamp, 6-guide rod, 7-fine setting screw rod, 8-right fixed block, 9-ratchet locking device, 10-gear, 11-outer ring, 12-spring, 13-ratchet, 14-screw, 15-sensor.
The specific embodiment
Describe the present invention below in conjunction with accompanying drawing.
As Fig. 1, Fig. 2, Fig. 3, shown in Fig. 4, pressure measurable type ratchet anti-loosing type fine tuning fixture comprises clamping fixture seat 1, left fixed block 2, large screw rod 3, left clamp 4, right clamp 5, guide rod 6, fine setting screw rod 7, right fixed block 8, ratchet locking device 9, gear 10, outer ring 11, spring 12, ratchet 13, screw 14, sensor 15, on described clamping fixture seat 1, be provided with dovetail groove, and be provided with left fixed block 2 and right fixed block 8 at dovetail groove two ends, on described left fixed block 2 and right fixed block 8, be equipped with screwed hole, described left clamp 4 and right clamp 5 are all assemblied in the dovetail groove on clamping fixture seat 1, described large screw rod 3 one end and left clamp 4 are connected, the threaded engagement of the other end and left fixed block 2, described guide rod 6 one end and right clamp 5 are connected, the other end is provided with screwed hole, described fine setting screw rod 7 two ends are equipped with screw thread, its one end is assemblied in the screwed hole of guide rod 6, the threaded engagement of the other end and right fixed block 8, and the thread rotary orientation at described fine setting screw rod 7 two ends is identical, on described large screw rod 3 and fine setting screw rod 7, be equipped with ratchet locking device 9, described ratchet locking device 9 is by gear 10, outer ring 11, spring 12, ratchet 13, screw 14 forms, described gear 10 is assemblied on large screw rod 3 by key, described outer ring 11 is fixed on clamping fixture seat 1, and be provided with screwed hole and spring 12, one end of described ratchet 13 is hinged on outer ring 11, other end linking springs 12, and described screw 14 is assemblied in the screwed hole of outer ring 11, and be pressed on ratchet 13, on described left clamp 4 and right clamp 5, be equipped with sensor 15.
Described sensor 15 is pressure sensor, and described spring 12 is extension spring.
As Fig. 1, Fig. 2, Fig. 3, shown in Fig. 4, pressure measurable type ratchet anti-loosing type fine tuning fixture comprises clamping fixture seat 1, left fixed block 2, large screw rod 3, left clamp 4, right clamp 5, guide rod 6, fine setting screw rod 7, right fixed block 8, ratchet locking device 9, gear 10, outer ring 11, spring 12, ratchet 13, screw 14, sensor 15, on described clamping fixture seat 1, be provided with dovetail groove, and be provided with left fixed block 2 and right fixed block 8 at dovetail groove two ends, on described left fixed block 2 and right fixed block 8, be equipped with screwed hole, described left clamp 4 and right clamp 5 are all assemblied in the dovetail groove on clamping fixture seat 1, described large screw rod 3 one end and left clamp 4 are connected, the threaded engagement of the other end and left fixed block 2, described guide rod 6 one end and right clamp 5 are connected, the other end is provided with screwed hole, described fine setting screw rod 7 two ends are equipped with screw thread, its one end is assemblied in the screwed hole of guide rod 6, the threaded engagement of the other end and right fixed block 8, and the thread rotary orientation at described fine setting screw rod 7 two ends is identical, on described large screw rod 3 and fine setting screw rod 7, be equipped with ratchet locking device 9, described ratchet locking device 9 is by gear 10, outer ring 11, spring 12, ratchet 13, screw 14 forms, described gear 10 is assemblied on large screw rod 3 by key, described outer ring 11 is fixed on clamping fixture seat 1, and be provided with screwed hole and spring 12, one end of described ratchet 13 is hinged on outer ring 11, other end linking springs 12, and described screw 14 is assemblied in the screwed hole of outer ring 11, and be pressed on ratchet 13, on described left clamp 4 and right clamp 5, be equipped with sensor 15.
Described sensor 15 is pressure sensor, and described spring 12 is extension spring, and its cross section is circular.
Claims (3)
1. a pressure measurable type ratchet anti-loosing type fine tuning fixture, comprise clamping fixture seat (1), left fixed block (2), large screw rod (3), left clamp (4), right clamp (5), guide rod (6), fine setting screw rod (7), right fixed block (8), ratchet locking device (9), gear (10), outer ring (11), spring (12), ratchet (13), screw (14), sensor (15), it is characterized in that, on described clamping fixture seat (1), be provided with dovetail groove, and be provided with left fixed block (2) and right fixed block (8) at dovetail groove two ends, on described left fixed block (2) and right fixed block (8), be equipped with screwed hole, described left clamp (4) and right clamp (5) are all assemblied in the dovetail groove on clamping fixture seat (1), described large screw rod (3) one end and left clamp (4) are connected, the threaded engagement of the other end and left fixed block (2), described guide rod (6) one end and right clamp (5) are connected, the other end is provided with screwed hole, described fine setting screw rod (7) two ends are equipped with screw thread, its one end is assemblied in the screwed hole of guide rod (6), the threaded engagement of the other end and right fixed block (8), the thread rotary orientation at described fine setting screw rod (7) two ends is identical, on described large screw rod (3) and fine setting screw rod (7), be equipped with ratchet locking device (9), described ratchet locking device (9) is by gear (10), outer ring (11), spring (12), ratchet (13), screw (14) composition, described gear (10) is assemblied on large screw rod (3) by key, described outer ring (11) is fixed on clamping fixture seat (1), and be provided with screwed hole and spring (12), one end of described ratchet (13) is hinged on outer ring (11), other end linking springs (12), described screw (14) is assemblied in the screwed hole of outer ring (11), and be pressed on ratchet (13), on described left clamp (4) and right clamp (5), be equipped with sensor (15).
2. pressure measurable type ratchet anti-loosing type fine tuning fixture according to claim 1, is characterized in that, described sensor (15) is pressure sensor.
3. pressure measurable type ratchet anti-loosing type fine tuning fixture according to claim 1, is characterized in that, described spring (12) is extension spring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310681055.9A CN103769918A (en) | 2013-12-16 | 2013-12-16 | Pawl looseness prevention fine-adjustment clamp with measurable pressure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310681055.9A CN103769918A (en) | 2013-12-16 | 2013-12-16 | Pawl looseness prevention fine-adjustment clamp with measurable pressure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103769918A true CN103769918A (en) | 2014-05-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310681055.9A Pending CN103769918A (en) | 2013-12-16 | 2013-12-16 | Pawl looseness prevention fine-adjustment clamp with measurable pressure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103769918A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107504877A (en) * | 2017-07-11 | 2017-12-22 | 江苏汉格智能科技有限公司 | It is a kind of to be used for automatic positioning rotating face and detect the mechanism of hole location |
| CN108058039A (en) * | 2017-11-16 | 2018-05-22 | 天长市天翔集团有限公司 | A kind of milling machine two-freedom fixture |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2671482A (en) * | 1949-01-03 | 1954-03-09 | Gordon William | Quick-acting screw and ratchet clamping device |
| CN201227792Y (en) * | 2008-07-30 | 2009-04-29 | 上海昆杰五金工具有限公司 | Ratchet bench clamp |
| CN201349825Y (en) * | 2009-01-19 | 2009-11-25 | 姚火金 | Display rack of roll up banner |
| CN201625929U (en) * | 2009-12-24 | 2010-11-10 | 华西能源工业股份有限公司 | Flexible clamping device |
| 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 |
| CN203679844U (en) * | 2013-12-16 | 2014-07-02 | 芜湖市天雄塑料科技有限公司 | Pressure-measurable ratchet loose-preventing fine adjustment clamp |
-
2013
- 2013-12-16 CN CN201310681055.9A patent/CN103769918A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2671482A (en) * | 1949-01-03 | 1954-03-09 | Gordon William | Quick-acting screw and ratchet clamping device |
| CN201227792Y (en) * | 2008-07-30 | 2009-04-29 | 上海昆杰五金工具有限公司 | Ratchet bench clamp |
| CN201349825Y (en) * | 2009-01-19 | 2009-11-25 | 姚火金 | Display rack of roll up banner |
| CN201625929U (en) * | 2009-12-24 | 2010-11-10 | 华西能源工业股份有限公司 | Flexible clamping device |
| 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 |
| CN203679844U (en) * | 2013-12-16 | 2014-07-02 | 芜湖市天雄塑料科技有限公司 | Pressure-measurable ratchet loose-preventing fine adjustment clamp |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107504877A (en) * | 2017-07-11 | 2017-12-22 | 江苏汉格智能科技有限公司 | It is a kind of to be used for automatic positioning rotating face and detect the mechanism of hole location |
| CN107504877B (en) * | 2017-07-11 | 2019-08-06 | 江苏汉格智能科技有限公司 | It is a kind of for automatic positioning rotating face and the mechanism of detection hole position degree |
| CN108058039A (en) * | 2017-11-16 | 2018-05-22 | 天长市天翔集团有限公司 | A kind of milling machine two-freedom fixture |
| CN108058039B (en) * | 2017-11-16 | 2019-09-27 | 天长市天翔集团有限公司 | A kind of milling machine two-freedom fixture |
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Application publication date: 20140507 |