CN103541977A - Interlocking limit screw - Google Patents
Interlocking limit screw Download PDFInfo
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- CN103541977A CN103541977A CN201310518691.XA CN201310518691A CN103541977A CN 103541977 A CN103541977 A CN 103541977A CN 201310518691 A CN201310518691 A CN 201310518691A CN 103541977 A CN103541977 A CN 103541977A
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- screw
- handed
- thread section
- handed thread
- screwed
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Abstract
The invention relates to an interlocking limit screw which comprises a screw head, a taper pin and a screw. The interlocking limit screw is characterized in that a left-handed thread section and a right-handed thread section are arranged on the screw, and the thread diameter of the left-handed thread section is smaller than that of the right-handed thread section. An inner taper threaded hole and a through groove are formed in the left-handed thread section, a thread tooth leading-in angle is larger than a thread tooth leading-out angle, the thread tooth leading-in angle is 45-65 degrees, and the thread tooth leading-out angle is 20-40 degrees. The interlocking limit screw is simple in structure, easy to manufacture, low in cost and convenient to use, the left-handed thread section, the right-handed thread section and the inner taper threaded hole are formed in the screw, a right-handed nut is screwed on the right-handed thread section of the screw to be locked mutually, a left-handed nut is screwed on the left-handed thread section of the screw to be locked mutually, a taper screw is screwed into the inner taper threaded hole to expand the through groove, the left-handed nut is fastened, the nuts can not loosen during use, repeated debugging is not required, and the reliability and use safety of the interlocking limit screw are improved.
Description
Technical field
The present invention relates to a kind of stop screw, be specifically related to a kind of interlocking stop screw.
Background technique
Rotary index miller special fixture when mounted, screw runs through jig main body, screw bottom is by two fastening nuts in the same way, nut near fixture plays adjusting position-limiting action, nut away from fixture plays the role of fastening, and the mutual interlock rear jig of this two nut physical efficiency rotates freely and limited corresponding position relationship, but this nut in the same way regulates inconvenience, easily loosening in course of working, even cause the stuck and injury to personnel of fixture and index chuck.
Summary of the invention
The object of the invention is to overcome the shortcoming of above-mentioned technology, provide a kind of simple in structure, assembling and setting is easy fast, time saving and energy saving, the interlocking stop screw of good reliability.
Interlocking stop screw of the present invention, comprises screw head, taper pin and screw rod, it is characterized in that: described screw rod is provided with left-handed thread section and right-handed thread section, and the spiral shell footpath of left-handed thread section is less than the spiral shell footpath of right-handed thread section; Described left-handed thread section is provided with inside tapered thread hole and groove, taper pin is sleeved on screw rod, right-handed nut is screwed in the right-handed thread section of screw rod, left-handed nut is screwed in the left-handed thread section of screw rod, make it mutual interlock locking, cone screw is screwed in inside tapered thread hole and makes groove distending again, left-handed nut is fastening.
In order better to realize above-mentioned purpose:
The tooth angle that is threaded in described inside tapered thread hole is greater than screw thread teething angle, and being threaded into tooth angle is 45 °～65 °, and screw thread teething angle is 20 °～40 °.
Interlocking stop screw of the present invention expense simple in structure, easy to manufacture is low, easy to use, screw rod is provided with left-handed thread section, right-handed thread section, inside tapered thread hole and groove, by tapering screw tensioner, in use, nut can not become flexible, do not need repeatedly to debug, improved reliability and the safety in utilization of interlocking stop screw.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
Fig. 2 is the I place partial enlarged drawing of Fig. 1.
In figure: 1, screw head, 2, screw rod, 3, taper pin, 4, right-handed thread section, 5, left-handed thread section, 6, inside tapered thread hole, 7, groove, α, be threaded into tooth angle, β, screw thread teething angle.
Embodiment
Interlocking stop screw of the present invention, comprises screw head 1, taper pin 3 and screw rod 2.Screw rod 2 is provided with left-handed thread section 5 and right-handed thread section 4.Taper pin 3 is sleeved on screw rod 2, and right-handed nut is screwed in the right-handed thread section 4 of screw rod 2, and left-handed nut is screwed in the left-handed thread section 5 of screw rod 2, and interlock locking mutually, is screwed into cone screw in inside tapered thread hole 6 and makes groove 7 distendings, and left-handed nut can not become flexible.
The spiral shell footpath of left-handed thread section 5 is less than the spiral shell footpath of right-handed thread section 4, and left-handed thread section is M14, and right-handed thread section is M16.Left-handed thread section 5 is provided with inside tapered thread hole 6 and groove 7.The tooth angle α that is threaded in inside tapered thread hole 6 is greater than screw thread teething angle β, and being threaded into tooth angle α is 55 °, and screw thread teething angle β is 30 °.
Screw of the present invention is to use like this:
Calibration porose disc and chuck body are in place, screw rod 2 is through the attachment hole of calibration porose disc and chuck body, taper pin 3 is sleeved on screw rod 2, right-handed nut is screwed in the right-handed thread section 4 of screw rod 2, regulate right-handed nut's tightness, chuck body can be rotated freely and vibration up and down not; Again left-handed nut is screwed in the left-handed thread section 5 of screw rod 2, and compresses right-handed nut, make it mutual interlock locking; Finally cone screw is screwed into and in inside tapered thread hole 6, makes groove 7 distendings, guarantee that left-handed nut can not become flexible, the fixture connecting is installed can come into operation, and in using process, right-handed nut and left-handed nut can not become flexible, do not need repeatedly to regulate, improved reliability and the Security of fixture yet.
Claims (2)
1. one kind interlocks stop screw, comprise screw head (1), taper pin (3) and screw rod (2), it is characterized in that: described screw rod (2) is provided with left-handed thread section (5) and right-handed thread section (4), and the spiral shell footpath of left-handed thread section (5) is less than the spiral shell footpath of right-handed thread section (4); Described left-handed thread section (5) is provided with inside tapered thread hole (6) and groove (7), taper pin (3) is sleeved on screw rod (2), right-handed nut is screwed in the right-handed thread section (4) of screw rod (2), left-handed nut is screwed in the left-handed thread section (5) of screw rod (2), make it mutual interlock locking, cone screw is screwed in inside tapered thread hole (6) again and makes groove (7) distending, left-handed nut is fastening.
2. interlocking stop screw according to claim 1, is characterized in that: the tooth angle α that is threaded in described inside tapered thread hole (6) is greater than screw thread teething angle β; Being threaded into tooth angle α is 45 °～65 °, and screw thread teething angle β is 20 °～40 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310518691.XA CN103541977A (en) | 2013-10-29 | 2013-10-29 | Interlocking limit screw |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310518691.XA CN103541977A (en) | 2013-10-29 | 2013-10-29 | Interlocking limit screw |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103541977A true CN103541977A (en) | 2014-01-29 |
Family
ID=49965747
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310518691.XA Pending CN103541977A (en) | 2013-10-29 | 2013-10-29 | Interlocking limit screw |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103541977A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1444885A (en) * | 1975-02-06 | 1976-08-04 | Vibro Loc Co Ltd | Nuts and bolts |
| EP0046622B1 (en) * | 1980-08-26 | 1984-11-14 | Cristalor S.A. | Bar for attaching a watch band to a watch case |
| DE3525956C2 (en) * | 1985-07-18 | 1987-04-23 | Thanh-Son Dipl.-Ing. 1000 Berlin De Le | |
| DE4003784A1 (en) * | 1989-02-18 | 1990-08-30 | Tornado Befestigungstechnik Gm | Fixing grid or grating - involves screw and retaining plate which cannot be inadvertently separated |
| DE202006018108U1 (en) * | 2006-11-29 | 2007-02-22 | Fabricius Fastener Gmbh | Anchor bolt for fastening clamp at rail section, has anti-twist device designed as crossbar with strip attached at narrow ends of crossbar, where strip engages into undercut in T-shaped groove of rail section during fastening of clamp |
| CN201779120U (en) * | 2010-09-19 | 2011-03-30 | 李德炳 | Threefold stable anti-looseness expansion screw |
| CN203560251U (en) * | 2013-10-29 | 2014-04-23 | 湖南南方宇航工业有限公司 | Interlock stop screw |
-
2013
- 2013-10-29 CN CN201310518691.XA patent/CN103541977A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1444885A (en) * | 1975-02-06 | 1976-08-04 | Vibro Loc Co Ltd | Nuts and bolts |
| EP0046622B1 (en) * | 1980-08-26 | 1984-11-14 | Cristalor S.A. | Bar for attaching a watch band to a watch case |
| DE3525956C2 (en) * | 1985-07-18 | 1987-04-23 | Thanh-Son Dipl.-Ing. 1000 Berlin De Le | |
| DE4003784A1 (en) * | 1989-02-18 | 1990-08-30 | Tornado Befestigungstechnik Gm | Fixing grid or grating - involves screw and retaining plate which cannot be inadvertently separated |
| DE202006018108U1 (en) * | 2006-11-29 | 2007-02-22 | Fabricius Fastener Gmbh | Anchor bolt for fastening clamp at rail section, has anti-twist device designed as crossbar with strip attached at narrow ends of crossbar, where strip engages into undercut in T-shaped groove of rail section during fastening of clamp |
| CN201779120U (en) * | 2010-09-19 | 2011-03-30 | 李德炳 | Threefold stable anti-looseness expansion screw |
| CN203560251U (en) * | 2013-10-29 | 2014-04-23 | 湖南南方宇航工业有限公司 | Interlock stop screw |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20140129 |