CN100577350C - Anti-loose mechanism for locking knife tool used in cutting machine - Google Patents
Anti-loose mechanism for locking knife tool used in cutting machine Download PDFInfo
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- CN100577350C CN100577350C CN200810058388A CN200810058388A CN100577350C CN 100577350 C CN100577350 C CN 100577350C CN 200810058388 A CN200810058388 A CN 200810058388A CN 200810058388 A CN200810058388 A CN 200810058388A CN 100577350 C CN100577350 C CN 100577350C
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- steel ball
- taper hole
- sliding sleeve
- knife
- tool
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Abstract
The invention relates to a locking and anti-loosing mechanism of a cutting tool used for a cutting machine, which is characterized in that: one end inside a pull rod (3) and connected with a sliding sleeve (4) is provided with a cylindrical cone hole (13) with a large caliber facing outwards; the cone hole port is provided with a steel ball (5) tangent with the cone hole; an anti-loosing bolt (6) withstanding the steel ball is arranged closely to the steel ball. The mechanism can lock a knife handle stably on a broach mechanism and can effectively prevent the cutting tool from getting loose; furthermore, the mechanism has the advantages of compact structure, relatively simple production and installation and can be widely applied to high speed rotating shaft systems.
Description
Technical field
The present invention relates to the location and the safety locking mechanism technical field of handle of a knife system in the high-speed processing machine tool axis system.
Background technology
Along with the progress of science and technology, world's machine industry is towards high speed, high precision int and high reliability development.Because high-speed cutting adds the influence of centrifugal force in man-hour, cutting load and vibration, the safety of structure of tooling system and high-precision dynamic balancing are vital.Tooling system must have good poised state and security.
The tooling system of high-speed cutting machining tool is made up of tool-broaching mechanism, handle of a knife mechanism and retaining mechanism, and high-speed cutting machine is when work, and can there be forward and reverse rotation in great majority, and the suffered load of tooling system also can be along with variation.The tooling system of prior art normally is provided with a pull bar in machine tool chief axis, pull bar one end is by the sliding sleeve that is threaded, the other end of sliding sleeve and broaching tool claw hook connect, handle of a knife is installed in broaching tool pawl inside, rely on sliding sleeve to be connected with the broaching tool pawl between its pull bar and the handle of a knife, locking relies on the realization that is threaded between pull bar and the sliding sleeve fully.Repeatedly under the duty of rotating, the fit clearance between the screw thread can increase this locking mode gradually, very easily gets loose at main shaft, makes the decline of cutter reliable lock, and the whole unbalanced influence aggravation of cutter causes the instability of potential safety hazard and crudy.
Summary of the invention
The object of the invention provides a kind of just and the handle of a knife mechanism stable can be locked on the tool-broaching mechanism in order to overcome above-mentioned the deficiencies in the prior art, and can prevent effectively that cutter from getting loose and the anti-loose mechanism for locking knife tool that is used for stock-removing machine simple and reliable for structure.
The objective of the invention is to be achieved through the following technical solutions.
The anti-loose mechanism for locking knife tool that is used for stock-removing machine is to offer footpath at a gulp cylindricality taper hole outwardly at the inner end that connects sliding sleeve of pull bar, the taper hole mouth be fitted with one with the tangent steel ball of taper hole, be provided with the backing-up screw of a top near steel ball to steel ball.
The conical surface gradient of cylindricality taper hole of the present invention is less than 10 °.The diameter of steel ball is not less than the diameter of the big nose end of taper hole.The butterfly spring, pull bar, sliding sleeve, steel ball, backing-up screw, broaching tool pawl, the handle of a knife that are positioned at machine tool chief axis are symmetrical part, all install along the spindle axis line, and the cylindricality taper hole is offered along the axial line symmetry.
The present invention can make its axial feed by adjusting backing-up screw, promoting steel ball evenly is carried in active force on the tangent circumference of steel ball and taper hole, make taper hole along outwards evenly finite deformation of axle head, and then make circumferentially closely interlock of screw thread between pull bar and the sliding sleeve, reduce thread pitch, reach the locking purpose of locking.
The conical surface gradient of cylindricality taper hole is controlled in 10 °, and the structural strength that does not promptly influence pull bar has enough radial pressures when guaranteeing the steel ball roof pressure again, obtains enough coupling mechanism forces and anti-loose ability.The diameter of steel ball is not less than the diameter of the big nose end of taper hole, can reduce the axial displacement of backing-up screw, increases the radial pressure of locking screw, plays better locking effect.Part among the present invention all is symmetrical part, all installs along axial line, and the remaining unbalance mass, of generation is very small.
Further set forth content of the present invention below in conjunction with Figure of description.
Description of drawings
Fig. 1 is a structural representation of the present invention.
The specific embodiment
As shown in the figure, the present invention includes the butterfly spring 2 that is arranged in proper order in the machine tool chief axis 1, pull bar 3, sliding sleeve 4, broaching tool pawl 9, handle of a knife 10, one end of pull bar connects butterfly spring 2, the other end is by the sliding sleeve 4 that is threaded, the other end of sliding sleeve 4 is by the briar tooth 8 and broaching tool pawl 9 clasp joints of outer rim, the boss 11 of handle of a knife 10 by the termination cooperates with the flange 12 of broaching tool pawl 9 inside and is installed in broaching tool pawl inside, offer footpath at a gulp cylindricality taper hole 13 outwardly at pull bar 3 inner ends that connect sliding sleeve 4, the taper hole mouth be fitted with one with the tangent steel ball 5 of taper hole, be provided with the backing-up screw 6 of a top near steel ball to steel ball, backing-up screw 6 is assemblied in the stop nut seat 7, and stop nut seat 7 is installed in sliding sleeve 4 inner chambers.The conical surface gradient α of cylindricality taper hole 13 is controlled in 10 °.The diameter of steel ball 5 is not less than the diameter of the big nose end of taper hole.Butterfly spring, pull bar, sliding sleeve, steel ball, backing-up screw, broaching tool pawl, handle of a knife in the machine tool chief axis are symmetrical part, all install along the spindle axis line, and the cylindricality taper hole is also offered along the axial line symmetry.
During mounting cutter, by tightening backing-up screw 6, promote steel ball 5 roof pressure cylindricality taper holes 13, make outwards circumferentially evenly expansion of cylindricality taper hole 13, thereby make pull bar 3 and sliding sleeve 4 interconnective screw threads distortion, allow the even interlock of connecting thread tooth, locking mutually.When metal cutting adds man-hour, under butterfly spring 2 effects, pull bar 3 drive sliding sleeves 4 up move, pulling cutter pawl 9 is axially strained handle of a knife 10, along with main shaft 1 high speed rotary cutting, even when positive and negative rotation is processed, the screw thread of locking can not get loose mutually, and handle of a knife 10 just can not come off.Part among the present invention all is symmetrical part, and part is far smaller than the main shaft gyration radius, and mounting means all passes through axial line, and the remaining unbalance mass, of generation is very small.
Positioning accuracy of the present invention is higher, and dynamic balance performance is better, can reduce the vibration and the noise of axis system, and is simple for structure, and manufacturing and assembling are comparatively simple, can be widely used in the high-speed rotating shaft system.
Claims (4)
1, the anti-loose mechanism for locking knife tool that is used for stock-removing machine, comprise that order is arranged at the butterfly spring (2) in the machine tool chief axis (1), pull bar (3), sliding sleeve (4), broaching tool pawl (9), handle of a knife (10), one end of pull bar connects butterfly spring (2), the other end is by the sliding sleeve that is threaded (4), the other end of sliding sleeve (4) is by the briar tooth (8) and broaching tool pawl (9) clasp joint of outer rim, the inner flange (12) of the boss (11) of handle of a knife (10) by the termination and broaching tool pawl (9) cooperates and is installed in broaching tool pawl inside, it is characterized in that, offer footpath at a gulp cylindricality taper hole (13) outwardly at the inner end that connects sliding sleeve (4) of pull bar (3), the taper hole mouth be fitted with one with the tangent steel ball (5) of taper hole, be provided with a top to the backing-up screw (6) of steel ball near steel ball.
2, the anti-loose mechanism for locking knife tool that is used for stock-removing machine according to claim 1 is characterized in that, the conical surface gradient α of cylindricality taper hole (13) is less than 10 °.
3, the anti-loose mechanism for locking knife tool that is used for stock-removing machine according to claim 1 is characterized in that, the diameter of steel ball (5) is not less than the diameter of the big nose end of taper hole.
4, the anti-loose mechanism for locking knife tool that is used for stock-removing machine according to claim 1, it is characterized in that, the butterfly spring (2), pull bar (3), sliding sleeve (4), steel ball (5), backing-up screw (6), broaching tool pawl (9), the handle of a knife (10) that are positioned at machine tool chief axis (1) are symmetrical part, all install along the spindle axis line, cylindricality taper hole (13) is offered along the axial line symmetry.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810058388A CN100577350C (en) | 2008-05-14 | 2008-05-14 | Anti-loose mechanism for locking knife tool used in cutting machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810058388A CN100577350C (en) | 2008-05-14 | 2008-05-14 | Anti-loose mechanism for locking knife tool used in cutting machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101274409A CN101274409A (en) | 2008-10-01 |
| CN100577350C true CN100577350C (en) | 2010-01-06 |
Family
ID=39994484
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200810058388A Active CN100577350C (en) | 2008-05-14 | 2008-05-14 | Anti-loose mechanism for locking knife tool used in cutting machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100577350C (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103909435B (en) * | 2013-01-06 | 2016-06-08 | 吉生机械股份有限公司 | The cutting tool combination of fast demountable |
| CN103286605B (en) * | 2013-07-05 | 2016-01-20 | 山东临沂金星机床有限公司 | A kind of lathe workpiece quick clamping mechanism |
| CN103465047A (en) * | 2013-08-15 | 2013-12-25 | 烟台海德汽车零部件有限责任公司 | Spring assembly for broaching during machining of central main shaft |
| CN105215390A (en) * | 2015-11-02 | 2016-01-06 | 东莞市马记实业有限公司 | A kind of gear type quick-release handle of a knife |
| CN113941884B (en) * | 2021-11-18 | 2022-08-26 | 意特利（滁州）智能数控科技有限公司 | Auxiliary mechanism of machine tool and numerical control machine tool |
| CN115464427A (en) * | 2022-08-15 | 2022-12-13 | 天津贺立刀具技术有限公司 | High-precision repeated positioning combined numerical control knife handle |
| CN116160029B (en) * | 2023-04-26 | 2023-07-04 | 江苏华雕机械有限公司 | Electric spindle capable of relieving impact force |
-
2008
- 2008-05-14 CN CN200810058388A patent/CN100577350C/en active Active
Non-Patent Citations (2)
| Title |
|---|
| 刀柄及其联结系统的现状和发展. 康运江，王西彬.机械工程师，第6期. 2004 |
| 刀柄及其联结系统的现状和发展. 康运江，王西彬.机械工程师，第6期. 2004 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101274409A (en) | 2008-10-01 |
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