CN103737343A - Pressure-controllable worm self-locking type anti-loosing fixture - Google Patents
Pressure-controllable worm self-locking type anti-loosing fixture Download PDFInfo
- Publication number
- CN103737343A CN103737343A CN201310672399.3A CN201310672399A CN103737343A CN 103737343 A CN103737343 A CN 103737343A CN 201310672399 A CN201310672399 A CN 201310672399A CN 103737343 A CN103737343 A CN 103737343A
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- CN
- China
- Prior art keywords
- worm
- fixture
- pressure
- loosing
- screw rod
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- 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.)
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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
- 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)
- Gear Transmission (AREA)
Abstract
The invention discloses a pressure-controllable worm self-locking type anti-loosing fixture, and belongs to the field of fixtures. The pressure-controllable worm self-locking type anti-loosing fixture comprises a fixture base, a screw rod, a moving block, and a clamping block. The upper end of the fixture base is pressed on an emargination of the lower end of the moving block, and the lower end of the clamping block is pressed on an emargination of the upper end of the moving block. The screw rod is meshed with the moving block. The pressure-controllable worm self-locking type anti-loosing fixture further comprises a worm wheel, a worm, and a dial, wherein the worm wheel are assembled on the screw rod through a key, the worm is assembled on the fixture base through a rolling bearing and meshed with the worm wheel, the dial is fixed to the worm. The pressure-controllable worm self-locking type anti-loosing fixture solves the problems that in an existing fixture, the fixture is not reliably clamped, clamping force is not easy to control, 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 pressure controllable type worm screw self-locking fixture for preventing that piece-holder is loosening.
Background technology
In machine industry, lathe is widely used in processing all kinds of parts, when processing parts, relates to its clamping and positioning problem.Workpiece is adding man-hour, by the clamping of fixture, can be adapted to various machining.But due to the vibration of lathe in process and the effect of cutting force, cause fixture to occur loosening, and then because piece-holder power causes the loosening of workpiece not, reduced machining accuracy, when serious, will cause workpiece to be thrown out of the generation of accident.Need to guarantee that fixture chucking power when clamping work pieces easily controls simultaneously.
Summary of the invention
The clamping that causes for existing fixture is unreliable, chucking power is wayward, easy loosening problem, the invention provides a kind of pressure controllable type worm screw self-locking fixture.
For addressing the above problem, the present invention adopts following technical scheme.
A kind of pressure controllable type worm screw self-locking fixture, comprise clamping fixture seat, screw rod, movable block, clamp, the upper end of clamping fixture seat is pressed on the recessed edge in movable block lower end, clamp lower end is pressed on the recessed edge in movable block upper end, and screw rod is meshed with movable block, also comprises worm gear, worm screw, dial, described worm gear is assemblied on screw rod by key, described worm screw is assemblied in clamping fixture seat by rolling bearing, and is meshed with worm gear, and described dial is fixed on worm screw.
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.
Than prior art, beneficial effect of the present invention is:
(1) the present invention utilizes worm geared self-locking performance to realize the locking of fixture, locking reliable and compact conformation.
(2) 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.
(3) the present invention is provided with dial on worm screw, 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; 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.
(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.
In figure: 1-clamping fixture seat, 2-screw rod, 3-movable block, 4-clamp, 5-worm gear, 6-worm screw, 7-dial.
The specific embodiment
Below in conjunction with accompanying drawing, describe the present invention.
As shown in Figure 1 and Figure 2, pressure controllable type worm screw self-locking fixture comprises clamping fixture seat 1, screw rod 2, movable block 3, clamp 4, the upper end of clamping fixture seat 1 is pressed on the movable block 3 recessed edge in lower end, clamp 4 lower ends are pressed on the movable block 3 recessed edge in upper end, screw rod 2 is meshed with movable block 3, also comprise worm gear 5, worm screw 6, dial 7, described worm gear 5 is assemblied on screw rod 2 by key, described worm screw 6 is assemblied in clamping fixture seat 1 by rolling bearing, and be meshed with worm gear 5, described dial 7 is fixed on worm screw 6.
The angle of spiral of described worm screw 6 is less than the equivalent friction angle of the field of conjugate action of itself and worm gear 5.
embodiment 1
As shown in Figure 1 and Figure 2, pressure controllable type worm screw self-locking fixture comprises clamping fixture seat 1, screw rod 2, movable block 3, clamp 4, the upper end of clamping fixture seat 1 is pressed on the movable block 3 recessed edge in lower end, clamp 4 lower ends are pressed on the movable block 3 recessed edge in upper end, screw rod 2 is meshed with movable block 3, also comprise worm gear 5, worm screw 6, dial 7, described worm gear 5 is assemblied on screw rod 2 by key, described worm screw 6 is assemblied in clamping fixture seat 1 by rolling bearing, and be meshed with worm gear 5, described dial 7 is fixed on worm screw 6.
The angle of spiral of described worm screw 6 is less than the equivalent friction angle of the field of conjugate action of itself and worm gear 5.Described worm screw 6 is single start worm, and its section flank profil is spiral of Archimedes.
As shown in Figure 1 and Figure 2, pressure controllable type worm screw self-locking fixture comprises clamping fixture seat 1, screw rod 2, movable block 3, clamp 4, the upper end of clamping fixture seat 1 is pressed on the movable block 3 recessed edge in lower end, clamp 4 lower ends are pressed on the movable block 3 recessed edge in upper end, screw rod 2 is meshed with movable block 3, also comprise worm gear 5, worm screw 6, dial 7, described worm gear 5 is assemblied on screw rod 2 by key, described worm screw 6 is assemblied in clamping fixture seat 1 by rolling bearing, and be meshed with worm gear 5, described dial 7 is fixed on worm screw 6.
The angle of spiral of described worm screw 6 is less than the equivalent friction angle of the field of conjugate action of itself and worm gear 5.Described worm screw 6 is double-thread worm, and its section flank profil is concave arc.
Claims (2)
1. a pressure controllable type worm screw self-locking fixture, comprise clamping fixture seat (1), screw rod (2), movable block (3), clamp (4), the upper end of clamping fixture seat (1) is pressed on the recessed edge in movable block (3) lower end, clamp (4) lower end is pressed on the recessed edge in movable block (3) upper end, screw rod (2) is meshed with movable block (3), it is characterized in that, also comprise worm gear (5), worm screw (6), dial (7), described worm gear (5) is assemblied on screw rod (2) by key, described worm screw (6) is assemblied in clamping fixture seat (1) by rolling bearing, and be meshed with worm gear (5), described dial (7) is fixed on worm screw (6).
2. pressure controllable type worm screw self-locking fixture according to claim 1, is characterized in that, the angle of spiral of described worm screw (6) is less than the equivalent friction angle of the field of conjugate action of itself and worm gear (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310672399.3A CN103737343A (en) | 2013-12-12 | 2013-12-12 | Pressure-controllable worm self-locking type anti-loosing fixture |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310672399.3A CN103737343A (en) | 2013-12-12 | 2013-12-12 | Pressure-controllable worm self-locking type anti-loosing fixture |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103737343A true CN103737343A (en) | 2014-04-23 |
Family
ID=50494446
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310672399.3A Pending CN103737343A (en) | 2013-12-12 | 2013-12-12 | Pressure-controllable worm self-locking type anti-loosing fixture |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103737343A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103722397A (en) * | 2013-12-13 | 2014-04-16 | 芜湖市天雄新材料科技有限公司 | Anti-disengagement clamp with self-locking type worm |
| CN104708551A (en) * | 2015-02-09 | 2015-06-17 | 浙江吉利控股集团有限公司 | Experimental fixture of gas generator and experimental method of gas generator |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3385591A (en) * | 1964-04-07 | 1968-05-28 | Evans & Son Ltd J | Workholder |
| DE1295335B (en) * | 1961-03-07 | 1969-05-14 | Knorr Werner | Workpiece clamping device |
| CN202123269U (en) * | 2011-06-29 | 2012-01-25 | 由雨鑫 | Positioning and clamping mechanism applied to numeral control drilling machines for machining blind holes in perforation gun barrel bodies |
| CN103433780A (en) * | 2013-08-22 | 2013-12-11 | 芜湖奕辰模具科技有限公司 | Double-fixing fixture with measurable pressure |
| CN103433779A (en) * | 2013-08-22 | 2013-12-11 | 芜湖奕辰模具科技有限公司 | Composite fixture with controllable pressure |
| 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 |
| CN203665113U (en) * | 2013-12-12 | 2014-06-25 | 芜湖市天雄塑料科技有限公司 | Pressure-controllable type worm self-locking anti-loosing clamp |
-
2013
- 2013-12-12 CN CN201310672399.3A patent/CN103737343A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1295335B (en) * | 1961-03-07 | 1969-05-14 | Knorr Werner | Workpiece clamping device |
| US3385591A (en) * | 1964-04-07 | 1968-05-28 | Evans & Son Ltd J | Workholder |
| CN202123269U (en) * | 2011-06-29 | 2012-01-25 | 由雨鑫 | Positioning and clamping mechanism applied to numeral control drilling machines for machining blind holes in perforation gun barrel bodies |
| CN103433780A (en) * | 2013-08-22 | 2013-12-11 | 芜湖奕辰模具科技有限公司 | Double-fixing fixture with measurable pressure |
| CN103433779A (en) * | 2013-08-22 | 2013-12-11 | 芜湖奕辰模具科技有限公司 | Composite fixture with controllable pressure |
| 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 |
| CN203665113U (en) * | 2013-12-12 | 2014-06-25 | 芜湖市天雄塑料科技有限公司 | Pressure-controllable type worm self-locking anti-loosing clamp |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103722397A (en) * | 2013-12-13 | 2014-04-16 | 芜湖市天雄新材料科技有限公司 | Anti-disengagement clamp with self-locking type worm |
| CN104708551A (en) * | 2015-02-09 | 2015-06-17 | 浙江吉利控股集团有限公司 | Experimental fixture of gas generator and experimental method of gas generator |
| CN104708551B (en) * | 2015-02-09 | 2017-04-12 | 浙江吉利控股集团有限公司 | Experimental fixture of gas generator and experimental method of gas generator |
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| PB01 | Publication | ||
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| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
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Application publication date: 20140423 |