CN112629387B - Qualified judging device for coaxiality of internal and external threads of threaded sleeve - Google Patents
Qualified judging device for coaxiality of internal and external threads of threaded sleeve Download PDFInfo
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- CN112629387B CN112629387B CN202011462033.XA CN202011462033A CN112629387B CN 112629387 B CN112629387 B CN 112629387B CN 202011462033 A CN202011462033 A CN 202011462033A CN 112629387 B CN112629387 B CN 112629387B
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B5/00—Measuring arrangements characterised by the use of mechanical techniques
- G01B5/24—Measuring arrangements characterised by the use of mechanical techniques for measuring angles or tapers; for testing the alignment of axes
- G01B5/25—Measuring arrangements characterised by the use of mechanical techniques for measuring angles or tapers; for testing the alignment of axes for testing the alignment of axes
- G01B5/252—Measuring arrangements characterised by the use of mechanical techniques for measuring angles or tapers; for testing the alignment of axes for testing the alignment of axes for measuring eccentricity, i.e. lateral shift between two parallel axes
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- General Physics & Mathematics (AREA)
- Length-Measuring Instruments Using Mechanical Means (AREA)
- A Measuring Device Byusing Mechanical Method (AREA)
Abstract
The invention relates to a device for judging the coaxiality of internal and external threads of a threaded sleeve is qualified, which consists of a threaded sleeve and a threaded pin; the inner hole of the thread bushing consists of a thread section and a pin hole section; the thread section is used for being matched with the external thread of the screw sleeve; the front end of the threaded pin is provided with a threaded shaft, and the middle part of the threaded pin is provided with a step shaft; the threaded shaft is matched with the internal thread of the threaded sleeve, and the middle step shaft is matched with the pin hole section of the threaded sleeve; the end surface of the middle step shaft is attached to the outer end surface of the threaded sleeve. According to the device for judging the coaxiality of the internal thread and the external thread of the screw sleeve, whether the screw sleeve is coaxial or not is reflected on the combined surface of the device by processing the device for judging the coaxiality of the internal thread and the external thread of the screw sleeve, a convenient measure is provided for the coaxiality test of the screw sleeve, the screw sleeve does not need to be screwed into a formal product for trial assembly, and the coaxiality detection efficiency of the screw sleeve is greatly improved.
Description
Technical Field
The invention belongs to the field of coaxiality detection, and particularly relates to a device for judging the coaxiality of internal and external threads of a threaded sleeve.
Background
The phenomenon that the next assembly cannot be carried out after the threaded sleeve on an oil tank of a certain type is embedded into the oil tank appears, and analysis shows that the phenomenon can be caused by the fact that the threaded sleeve is not coaxial inside and outside.
The inner ring and the outer ring of the threaded sleeve are both in threaded structures and limited by a machining process, the inner ring and the outer ring of the threaded sleeve are machined and clamped twice, so that the coaxiality of the inner ring and the outer ring of the threaded sleeve is likely to deviate, the inner ring and the outer ring are both in threaded structures, whether the coaxiality of the inner ring and the outer ring meets the requirement of composite assembly cannot be conveniently measured, the original detection method is to use a vernier caliper to detect the distance between the small diameter of the internal thread and the large diameter of the external thread, and the detection efficiency is low.
Disclosure of Invention
The invention provides a device for judging the coaxiality of internal and external threads of a threaded sleeve, which solves the defects in the prior art.
In order to solve the technical problem, the invention provides a device for judging the coaxiality of the internal thread and the external thread of a threaded sleeve, which is characterized in that: consists of a threaded sleeve 1 and a threaded pin 2; the inner hole of the thread bushing consists of a thread section and a pin hole section; the thread section is used for matching with the external thread of the screw sleeve; the front end of the threaded pin is provided with a threaded shaft, and the middle part of the threaded pin is provided with a step shaft; the threaded shaft is matched with the internal thread of the threaded sleeve, and the middle step shaft is matched with the pin hole section of the threaded sleeve; the end surface of the middle step shaft is attached to the outer end surface of the threaded sleeve.
Has the advantages that: according to the device for judging the coaxiality of the internal thread and the external thread of the screw sleeve, whether the screw sleeve is coaxial or not is reflected on the combined surface of the device by processing the device for judging the coaxiality of the internal thread and the external thread of the screw sleeve, a convenient measure is provided for the coaxiality test of the screw sleeve, the screw sleeve does not need to be screwed into a formal product for trial assembly, and the coaxiality detection efficiency of the screw sleeve is greatly improved.
Drawings
Fig. 1 screw thread bushing
FIG. 2 threaded pin
Fig. 3 is an assembly schematic.
Detailed Description
In order to make the objects, contents and advantages of the present invention clearer, the following detailed description of the embodiments of the present invention is provided.
The invention provides a device for judging the coaxiality of internal and external threads of a threaded sleeve, which consists of a threaded sleeve 1 and a threaded pin 2; the inner hole of the thread bushing consists of a thread section and a pin hole section; the thread section is used for matching with the external thread of the screw sleeve; the thread insert external thread M30-6h and the internal thread M16-6 h; the front end of the threaded pin is provided with a threaded shaft, and the middle part of the threaded pin is provided with a step shaft; the threaded shaft is matched with the internal thread of the threaded sleeve, and the middle step shaft is matched with the pin hole section of the threaded sleeve; the end surface of the middle step shaft is attached to the outer end surface of the threaded sleeve.
The hole, the end face and the thread of the thread sleeve are processed by one-time clamping, the perpendicularity of the thread axis and the end face is less than or equal to 0.02, and the coaxiality of the hole and the thread is less than or equal to 0.02; the cylindrical surface, the end surface and the thread of the threaded pin are processed by one-time clamping, the perpendicularity of the axis of the thread and the end surface is less than or equal to 0.02, and the coaxiality of the cylindrical surface and the thread is less than or equal to 0.02.
The working process comprises the following steps:
the threaded sleeve is screwed into the threaded sleeve, the threaded pin is screwed into the threaded sleeve, whether the stepped shaft of the threaded pin can be smoothly screwed into the pin hole of the threaded sleeve or not is observed, the stepped shaft can enter the pin hole, the gap between the end face of the stepped shaft in the middle and the outer end face of the threaded sleeve is uniform, namely the stepped shaft is judged to be qualified, and if the stepped shaft of the threaded pin cannot be smoothly screwed into the pin hole of the threaded sleeve, the coaxiality of the inner ring and the outer ring of the threaded sleeve is judged to be unqualified.
The above description is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, several modifications and variations can be made without departing from the technical principle of the present invention, and these modifications and variations should also be regarded as the protection scope of the present invention.
Claims (6)
1. The utility model provides a qualified device of judging of swivel nut internal and external screw thread axiality which characterized in that: consists of a threaded sleeve and a threaded pin; the inner hole of the thread bushing consists of a thread section and a pin hole section; the thread section is used for being matched with the external thread of the screw sleeve; the front end of the threaded pin is provided with a threaded shaft, and the middle part of the threaded pin is provided with a step shaft; the threaded shaft is matched with the internal thread of the threaded sleeve, and the middle step shaft is matched with the pin hole section of the threaded sleeve; the end surface of the middle step shaft is attached to the outer end surface of the threaded sleeve; and (3) screwing the threaded sleeve into the threaded sleeve, screwing the threaded pin into the threaded sleeve, observing whether the stepped shaft of the threaded pin can be smoothly screwed into the pin hole of the threaded sleeve and can enter the pin hole, judging that the pin is qualified if the gap between the end surface of the stepped shaft in the middle and the outer end surface of the threaded sleeve is uniform, and judging that the coaxiality of the inner ring and the outer ring of the threaded sleeve is unqualified if the stepped shaft of the threaded pin cannot be smoothly screwed into the pin hole of the threaded sleeve.
2. The device for judging the coaxiality of the internal thread and the external thread of the screw sleeve according to claim 1, wherein: the hole, the end face and the thread of the thread sleeve are processed by one-time clamping.
3. The device for judging the coaxiality of the internal thread and the external thread of the screw sleeve according to claim 1, wherein: the perpendicularity between the thread axis of the thread bushing and the end surface is less than or equal to 0.02, and the coaxiality between the hole and the thread is less than or equal to 0.02.
4. The device for judging the coaxiality of the internal thread and the external thread of the screw sleeve according to claim 1 is characterized in that: the cylindrical surface, the end surface and the thread of the threaded pin are finished by one-time clamping.
5. The device for judging the coaxiality of the internal thread and the external thread of the screw sleeve according to claim 1, wherein: the perpendicularity between the axis of the thread and the end surface is less than or equal to 0.02, and the coaxiality between the cylindrical surface and the thread is less than or equal to 0.02.
6. The device for judging the coaxiality of the internal thread and the external thread of the screw sleeve according to claim 1, wherein: the thread insert has external threads M30-6h and internal threads M16-6 h.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011462033.XA CN112629387B (en) | 2020-12-11 | 2020-12-11 | Qualified judging device for coaxiality of internal and external threads of threaded sleeve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011462033.XA CN112629387B (en) | 2020-12-11 | 2020-12-11 | Qualified judging device for coaxiality of internal and external threads of threaded sleeve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112629387A CN112629387A (en) | 2021-04-09 |
| CN112629387B true CN112629387B (en) | 2022-09-13 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202011462033.XA Active CN112629387B (en) | 2020-12-11 | 2020-12-11 | Qualified judging device for coaxiality of internal and external threads of threaded sleeve |
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| CN (1) | CN112629387B (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2013056417A1 (en) * | 2011-10-18 | 2013-04-25 | 中联重科股份有限公司 | Dowel pin with adjustable diameter |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101614234A (en) * | 2009-08-17 | 2009-12-30 | 贵州航天精工制造有限公司 | A kind of method and sawtooth stop swivel nut that prevents that swivel nut rotates in the matrix screw |
| US20140023453A1 (en) * | 2012-07-23 | 2014-01-23 | Alan HOLLENSEN | Wire thread insert |
| CN203636379U (en) * | 2013-07-09 | 2014-06-11 | 中煤张家口煤矿机械有限责任公司 | Seamless clamping positioning device for thin-wall external threads |
| CN104534965B (en) * | 2014-12-17 | 2018-06-05 | 贵州凯星液力传动机械有限公司 | A kind of internal thread testing apparatus for verticality and its application method |
| CN111102910B (en) * | 2018-10-28 | 2020-11-24 | 国营四达机械制造公司 | Thread coaxiality measuring tool and measuring method |
| CN109297394A (en) * | 2018-12-11 | 2019-02-01 | 中国航发贵州红林航空动力控制科技有限公司 | A kind of cylinder and thread coaxiality detection method and receiver ga(u)ge |
| CN212006968U (en) * | 2020-04-14 | 2020-11-24 | 东风（十堰）汽车锻钢件有限公司 | Utensil is examined to screw thread |
-
2020
- 2020-12-11 CN CN202011462033.XA patent/CN112629387B/en active Active
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2013056417A1 (en) * | 2011-10-18 | 2013-04-25 | 中联重科股份有限公司 | Dowel pin with adjustable diameter |
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| CN112629387A (en) | 2021-04-09 |
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