CN201828220U - Measuring tool for detecting position tolerance of external thread - Google Patents
Measuring tool for detecting position tolerance of external thread Download PDFInfo
- Publication number
- CN201828220U CN201828220U CN2010205303794U CN201020530379U CN201828220U CN 201828220 U CN201828220 U CN 201828220U CN 2010205303794 U CN2010205303794 U CN 2010205303794U CN 201020530379 U CN201020530379 U CN 201020530379U CN 201828220 U CN201828220 U CN 201828220U
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- China
- Prior art keywords
- tapering
- thread
- nut
- bolt
- value
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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.)
- Expired - Fee Related
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Abstract
The utility model discloses a measuring tool for detecting the position tolerance of an external thread. The measuring tool comprises a taper nut, a taper mandrel and an inspection bolt, wherein the taper mandrel is used for processing the taper nut; the inspection bolt is used for detecting the reliability of the taper nut; the taper nut is sleeved on the taper mandrel; the coaxiality between the taper nut and the taper mandrel is 0.01 millimeter; the value of the large end size of the taper nut is equal to the maximum value of the mean diameter size of a thread ring gauge at the thread through end of a bolt to be detected; the value of the small end size of the taper nut is equal to the minimum value of the mean diameter size of the thread ring gauge at the thread stop end of a detected bolt; and the perpendicularity tolerance between the axis and the end face of the taper nut is 0.005 millimeter. The measuring tool has a simple structure, a novel design, a small size, a low production cost and high detection accuracy, is convenient to use and operate, is easy to manufacture and is convenient to popularize.
Description
Technical field
The utility model belongs to the Machining Technology field, especially relates to a kind of measurer that detects the external thread position of related features.
Background technology
For a long time, the measurement of external thread position of related features at home and abroad is a difficult point problem always, because the singularity of threaded engagement, screw thread is existing end play in the process that cooperates, radial play being arranged again, thus in the process of measuring, can't accurately locate, thereby also just can't accurately measure.In the manufacturing process of diesel engine, the processing of closing key bolt, important screw all requires the precision of position tolerances such as the verticality of screw thread and some machining elements, jerk value, right alignment to reach certain requirement, but at present, the precision of these positions of related features all relies on technological process and guarantees in process of manufacture, be not used to the measurer measured, the data that can not get quantizing, can't carry out product quality identifies, the part that causes input to be installed and used exists hidden danger of quality, increase the cost of overhaul in later stage, brought many unnecessary troubles and loss.
The utility model content
Technical problem to be solved in the utility model is to provide a kind of measurer that detects the external thread position of related features at above-mentioned deficiency of the prior art, and it is simple in structure, modern design, volume is small and exquisite, uses simple operation, makes simple, production cost is low, and the accuracy of detection height is convenient to promote the use of.
For solving the problems of the technologies described above, the technical solution adopted in the utility model is: a kind of measurer that detects the external thread position of related features, it is characterized in that: comprise the tapering nut, the check bolt that is used to process the tapering axle of tapering nut and is used to detect tapering nut reliability, described tapering nut sleeve be connected on the tapering axle and with the right alignment of tapering axle be 0.01mm, the big end size of described tapering nut equals the maximal value of footpath size in the ring thread gage of tested bolt thread go side, the small end size of described tapering nut equals the minimum value of footpath size in the ring thread gage of tested bolt thread not-go-end, and the axis of described tapering nut and the squareness tolerance of end face are 0.005mm.
The big end size of described tapering axle is than the big 0.01mm-0.02mm of maximal value of the pitch diameter of thread size of tested bolt.
Conical surface length L=the Td of described tapering axle
2* 500+L
1, wherein, Td
2Be the tolerance of the pitch diameter of thread value of tested bolt, L
1Length for the tapering nut.
The tapering of described tapering axle is 1: 500, and the round run-out tolerance of the end face of described tapering axle is 0.005mm.
The pitch diameter of thread value of described check bolt is pitch diameter of thread value middle poor of tested bolt, and the tolerance of described check bolt is the tolerance of footpath value in the ring thread gage of tested bolt.
Described tapering nut is 1/2L with the length of thread engagement of check bolt
1～1/2L
1+ 3mm, wherein, L
1Length for the tapering nut.
The utility model compared with prior art has the following advantages:
1, simple in structure, modern design: the utility model is simple in structure, and operating personnel only need the tapering nut that processes is screwed on the tested bolt, just can carry out the measurement of external thread position of related features, modern design.
2, volume is small and exquisite, and use simple operation: the utility model tapering nut volume is small and exquisite, in light weight, is convenient to very much operation.
3, accuracy of detection height, but the utility model detection position tolerance grade to 0.001mm, the utility model is particularly suitable for high-precision externally threaded processing and detects and use.
4, make simply, production cost is low, is convenient to promote the use of: manufacturing materials of the present utility model adopts alloy steel commonly used or superior alloy steel to get final product through modifier treatment, adopts the common process method to realize, makes simply, and production cost is very low, is convenient to promote the use of.
Below by drawings and Examples, the technical solution of the utility model is described in further detail.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
Fig. 2 is the sectional structure synoptic diagram of the utility model tapering nut.
Fig. 3 is the A-A cut-open view of Fig. 2.
Fig. 4 is the structural representation of the utility model tapering axle.
Fig. 5 is the structural representation of the utility model check bolt.
Fig. 6 cuts the shape synoptic diagram for the screw thread of the utility model check bolt.
Fig. 7 is the structural representation of the tested bolt of the utility model.
Fig. 8 is used to detect the synoptic diagram of the position of related features of tested bolt for the utility model.
Description of reference numerals:
1-tapering nut; 2-tapering axle; 3-checks bolt;
The tested bolt of 4-; 5-1-dial gauge one; 5-2-dial gauge two;
5-3-dial gauge three.
Embodiment
As Fig. 1, Fig. 2, Fig. 3 and shown in Figure 5, the utility model comprises tapering nut 1, the check bolt 3 that is used to process the tapering axle 2 of tapering nut 1 and is used to detect tapering nut 1 reliability, described tapering nut 1 be socketed on the tapering axle 2 and with the right alignment of tapering axle 2 be 0.01mm, the big end size of described tapering nut 1 equals the maximal value of footpath size in the ring thread gage of tested bolt 4 screw thread go sides, the small end size of described tapering nut 1 equals the minimum value of footpath size in the ring thread gage of tested bolt 4 screw thread not-go-end, and the axis of described tapering nut 1 and the squareness tolerance of end face are 0.005mm.With the screw thread specification is that the tested bolt 4 of M24 * 2-4g is an example, the maximal value of footpath size is 22.663mm in the ring thread gage of its screw thread go side, the maximal value of footpath size is 22.563mm in the ring thread gage of its screw thread not-go-end, so, the big end of tapering nut 1 is of a size of 22.663mm, and the small end of tapering nut 1 is of a size of 22.563mm.
In conjunction with Fig. 4, the big end size of described tapering axle 2 is than the big 0.01mm-0.02mm of maximal value of the pitch diameter of thread size of tested bolt 4.Preferably, the big end size of tapering axle 2 is than the big 0.015mm of maximal value of the pitch diameter of thread size of tested bolt 4, is that the tested bolt 4 of M24 * 2-4g is an example with the screw thread specification, and the maximal value of its pitch diameter of thread size is 22.663mm, so the big end of tapering axle 2 is of a size of 22.678mm; Conical surface length L=the Td of described tapering axle 2
2* 500+L
1, wherein, Td
2Be the tolerance of the pitch diameter of thread value of tested bolt, L
1Length for the tapering nut.With the screw thread specification is that the tested bolt 4 of M24 * 2-4g is an example, the tolerance Td of its pitch diameter of thread value
2=0.1mm, the length L of tapering nut
1So=25mm is the conical surface length L=75mm of tapering axle 2; The tapering of described tapering axle 2 is 1: 500, and the round run-out tolerance of the end face of described tapering axle 2 is 0.005mm.
In conjunction with Fig. 5 and Fig. 6, the pitch diameter of thread value of described check bolt 3 is pitch diameter of thread value middle poor of tested bolt 4, is that the tested bolt 4 of M24 * 2-4g is an example with the screw thread specification, and the middle difference of its pitch diameter of thread value is 22.61mm, so the pitch diameter of thread value of check bolt 3 is 22.61mm; The tolerance of described check bolt 3 is the tolerance of footpath value in the ring thread gage of tested bolt 4, is that the tested bolt 4 of M24 * 2-4g be an example with the screw thread specification, in its ring thread gage directly the tolerance of value be 0.014mm, so checking the tolerance of bolt 3 is 0.014mm; Described tapering nut 1 is 1/2L with the length of thread engagement of check bolt 3
1～1/2L
1+ 3mm, wherein, L
1Be the length of tapering nut 1, when the double thread specification is the external thread position of related features of the tested bolt 4 of M24 * 2-4g when detecting, tapering nut 2 is 12.5mm～15.5mm with the length of thread engagement of check bolt 3; Among Fig. 6, α is 60 °.
In conjunction with Fig. 7 and Fig. 8, the course of work of the present utility model is: after machining, unload tapering nut 1 from processing with tapering axle 2, again tapering nut 1 is loaded on and detects with on the check bolt 3, detect the reliability of tapering nut 1 with length of thread engagement, when the length of thread engagement of tapering nut 1 and check bolt 3 at 1/2L
1～1/2L
1In the time of in+3mm the scope, tapering nut 1 is qualified, and the detection position tolerance grade can reach 0.001mm, wherein, and L
1Length for tapering nut 1.When detecting tested bolt 4 with the tapering nut 1 that is up to the standards then, tapering nut 1 is spun on the tested bolt 4, measure the right alignment tolerance value of tested bolt 4 with dial gauge 5-1, measure the perpendicularity deviation value of tested bolt 4 with dial gauge 5-2 and dial gauge 5-3, reading on each dial gauge is promptly surveyed the position of related features value for measuring.Experimental result shows that the design's success, effective is measured reliable.
The above; it only is preferred embodiment of the present utility model; be not that the utility model is imposed any restrictions; everyly any simple modification that above embodiment did, change and equivalent structure are changed, all still belong in the protection domain of technical solutions of the utility model according to the utility model technical spirit.
Claims (6)
1. measurer that detects the external thread position of related features, it is characterized in that: comprise tapering nut (1), the check bolt (3) that is used to process the tapering axle (2) of tapering nut (1) and is used to detect tapering nut (1) reliability, the tapering axle (2) that is socketed in described tapering nut (1) go up and with the right alignment of tapering axle (2) be 0.01mm, the big end size of described tapering nut (1) equals the maximal value of footpath size in the ring thread gage of tested bolt (4) screw thread go side, the small end size of described tapering nut (1) equals the minimum value of footpath size in the ring thread gage of tested bolt (4) screw thread not-go-end, and the axis of described tapering nut (1) and the squareness tolerance of end face are 0.005mm.
2. according to the described a kind of measurer that detects the external thread position of related features of claim 1, it is characterized in that: the big end size of described tapering axle (2) is than the big 0.01mm-0.02mm of maximal value of the pitch diameter of thread size of tested bolt (4).
3. according to the described a kind of measurer that detects the external thread position of related features of claim 2, it is characterized in that: the conical surface length L=Td of described tapering axle (2)
2* 500+L
1, wherein, Td
2Be the tolerance of the pitch diameter of thread value of tested bolt (4), L
1Length for tapering nut (1).
4. according to the described a kind of measurer that detects the external thread position of related features of claim 3, it is characterized in that: the tapering of described tapering axle (2) is 1: 500, and the round run-out tolerance of the end face of described tapering axle (2) is 0.005mm.
5. according to the described a kind of measurer that detects the external thread position of related features of claim 1, it is characterized in that: the pitch diameter of thread value of described check bolt (3) is pitch diameter of thread value middle poor of tested bolt (4), and the tolerance of described check bolt (3) is the tolerance of footpath value in the ring thread gage of tested bolt (4).
6. according to the described a kind of measurer that detects the external thread position of related features of claim 4, it is characterized in that: described tapering nut (1) is 1/2L with the length of thread engagement of check bolt (3)
1～1/2L
1+ 3mm, wherein, L
1Length for tapering nut (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205303794U CN201828220U (en) | 2010-09-15 | 2010-09-15 | Measuring tool for detecting position tolerance of external thread |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205303794U CN201828220U (en) | 2010-09-15 | 2010-09-15 | Measuring tool for detecting position tolerance of external thread |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201828220U true CN201828220U (en) | 2011-05-11 |
Family
ID=43966747
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010205303794U Expired - Fee Related CN201828220U (en) | 2010-09-15 | 2010-09-15 | Measuring tool for detecting position tolerance of external thread |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201828220U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103278067A (en) * | 2013-06-08 | 2013-09-04 | 安徽中鼎金亚汽车管件制造有限公司 | Inspection device for detecting mixed mounting of bolts |
| CN106679534A (en) * | 2016-12-28 | 2017-05-17 | 沪东重机有限公司 | Ring sleeve tool and method for external-thread detection |
| CN107144199A (en) * | 2017-06-28 | 2017-09-08 | 中国航发南方工业有限公司 | Screw thread pulsation measuring tool and screw thread axis misalignment measuring method |
| CN108444359A (en) * | 2018-04-19 | 2018-08-24 | 广州宁武科技股份有限公司 | A kind of device measuring sheet metal component nut location tolerance |
-
2010
- 2010-09-15 CN CN2010205303794U patent/CN201828220U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103278067A (en) * | 2013-06-08 | 2013-09-04 | 安徽中鼎金亚汽车管件制造有限公司 | Inspection device for detecting mixed mounting of bolts |
| CN103278067B (en) * | 2013-06-08 | 2015-11-18 | 安徽中鼎金亚汽车管件制造有限公司 | A kind of cubing detecting bolt and load in mixture |
| CN106679534A (en) * | 2016-12-28 | 2017-05-17 | 沪东重机有限公司 | Ring sleeve tool and method for external-thread detection |
| CN107144199A (en) * | 2017-06-28 | 2017-09-08 | 中国航发南方工业有限公司 | Screw thread pulsation measuring tool and screw thread axis misalignment measuring method |
| CN108444359A (en) * | 2018-04-19 | 2018-08-24 | 广州宁武科技股份有限公司 | A kind of device measuring sheet metal component nut location tolerance |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110511 Termination date: 20150915 |
|
| EXPY | Termination of patent right or utility model |