CN2048957U - Pitch gauge for external screw threads of cylinder - Google Patents
Pitch gauge for external screw threads of cylinder Download PDFInfo
- Publication number
- CN2048957U CN2048957U CN 88220979 CN88220979U CN2048957U CN 2048957 U CN2048957 U CN 2048957U CN 88220979 CN88220979 CN 88220979 CN 88220979 U CN88220979 U CN 88220979U CN 2048957 U CN2048957 U CN 2048957U
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- China
- Prior art keywords
- cylinder
- gauge
- measuring
- utility
- footpath
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Abstract
The utility model relates to a measuring tool for measuring the pitch diameter of external screw threads of cylinder, which is used for measuring diameter divided into size sections by 25 mm and whose range is less or more than 600 mm. The diameter of external screw threads belongs to standard or non-standard cylinder instead of rectangle in different types, screw pitches and precisions. The utility model has the advantages of small size, light weight, high precision, direct usage on the machine tools, rapid adjustment, wide scope of application, etc. The utility model is used to rapidly and conveniently measure the process capability of the thread machining processes and the size distribution of the workpieces thread pitch diameter in production departments.
Description
The utility model belongs to mechanical processing industry to the externally threaded measurement mechanism of cylinder, when it is used for engineering shop's production cylinder non-rectangle external thread, directly measures the value of footpath on of screw thread.It is the measurer that above-mentioned screw thread is carried out composite measurement.
When the existing machinery job shop checks above-mentioned screw thread, external having can overcome go side ring thread gage shortcoming, directly measure the measurer of footpath value in this threaded function, the external thread comparator of producing as West Germany Mahr company (saw 1985 or 148 pages of products catalogue DiMensional Metrology of Mahr company in 1984 Indicating Thread Comparator 706V).Its volume is big, as common comparator, could measure it after workpiece can only being taken off from lathe.Its a pair of gauge head seems identical with tested whorl work piece pitch and cylinder external threads that diameter is different, and in fact is " screw thread annulated column " that promptly lead angle is zero so-called screw thread from appearance.It makes difficulty, valency is expensive, and can only measure the cylinder external thread of 2～50mm, so even abroad, this measurer is also used seldom.
The cylinder external thread is owing to footpath problems of measurement in failing in the production scene to solve has well influenced the quality and the production efficiency of screw thread.The STRTHD new national standard of China was just carried out since 1981, still had many factories to adopt former capital's mark so far, and major reason is exactly that the production scene does not have footpath test measuring device in the external thread of fine adaptation new national standard.
This is suitable for novel purpose is exactly that the cylinder external thread that will design is shown in the footpath on:
1, can directly measure the value of footpath on that guarantees screwing property of cylinder non-rectangle external thread convenient by the operator on machining tool, flexibly;
2, measuring principle is correct, the degree of accuracy height;
3, this measurer can not only be measured certain cylinder non-rectangle external thread of a certain diameter, pitch and a certain precision, simultaneously, by changing gauge head and check gauge easily and promptly adjusting, it goes back the cylinder non-rectangle external thread of variety classes, pitch and precision in a certain diameter range of energy measurement.
Like this, will make the cylinder external thread detection technique of production scene that new development arranged, the quality of tested screw product increases, and also makes implementing of China's STRTHD new national standard obtain practical guarantee.
The content of utility model
The utility model is exactly that the cylinder external thread that designs is shown in the footpath on, sees Fig. 1.It mainly is made up of a pair of gauge head (4), dial gauge (1), location-plate (9), support (5), lever (2), spring (10), handle knob (8) and check gauge etc.In its gauge head (4) one is fastened on the measuring head base (3) by screw, and with the interlock of dial gauge (1) and lever (2), another gauge head is fastened on down on the measuring head base (7) by screw, and it can adjust its position along measuring axis with following measuring head base, and following measuring head base is fastening by screw (6).Location-plate (9) is adjusted to correct position by check gauge, is locked then, just can use afterwards.
Its measuring principle can be described as have one equate with processed cylinder external thread lift angle, the thread rolling machine of roller that rotation direction is opposite, the axis of whorl work piece and roller is in the same plane, one of them roller and dial gauge interlock, and dial gauge measuring staff central plane and above-mentioned plane coplane.During this tool amount of actual design, gauge head is two thin slices that downcut along axle section symmetry from above-mentioned " roller ", have groove on it, with screw it is fastened on the corresponding measuring head base, screw measurement length is taken as the screwing length or the medium length of fit of regulation, and it is described that above-mentioned measuring principle is observed in the residing position of its central plane.When satisfying the measuring accuracy requirement, allow the diameter of screw and the tested whorl work piece diameter of gauge head unequal.
During actual design, consider that also this measurer will have certain measurement range, volume is little, simultaneously guarantee that again the locating surface of location-plate is parallel with measurement plane, and have rigidity preferably, its support is similar to micrometer stand, and measurement range is taken as 25mm, by the diameter of screw requirement of " STRTHD " GB196-81 regulation, be designed to this measurer of different-diameter segmentation.Should also be noted that the value of footpath on that this measurer records, only is for tested axle section, measure accurately, also should survey several sections as using common milscale more.
Accompanying drawing and explanation
One of the utility model drawings attached.
Effect of the present utility model
Cylinder external thread footpath table is on compared with the thread comparator of Mahr company, except the thread comparator gauge head of Mahr company has the versatility than this measurer, this measurer has its all advantages, and, volume is little, in light weight, can directly on lathe, use, measure convenient also quick; Do not have the errors of principles, measure accurate; Easy to manufacture, keeping is convenient; Because with 25mm is a measuring section, can be made into and satisfies STRTHD GB or other cylinder non-rectangle external thread standard, this measurer that fills in the gaps to complete a chain.
In a word, because the utility model has been arranged, just can detect the process capability of this screw thread processing in the production scene at any time and whether be in steady state (SS).This is a very big progress.If with the cylinder external thread of diameter on the footpath table and measure the cylinder external thread single in other measurer in footpath, such as footpath chi in single (the footpath chi is of the present utility model dividing an application in single), regard a cover measurer of the present utility model as.So, the different such measurer of some covers just can be measured in some major diameter scopes.Footpath value in the cylinder external thread of variety classes, specification and precision that is to say, its energy measurement meets whole cylinder external threads of certain or several standards, certainly the also nonstandard screw thread of energy measurement in this scope.Like this, even if value detection this problem in footpath is resolved in the cylinder external thread that the mechanical processing industry production scene runs into, the STRTHD new national standard that China began to carry out in 1981 implement and obtained new means.
Directly show embodiment sees Fig. 1 to the cylinder external thread on.It can measure 25～50mm diameter, P=1～5mm, 53 kinds of STRTHD of the medium length of fit of different accuracy.Two double dot dash line circles are represented tested externally threaded two ultimate values on Fig. 1 front view, also are the extreme positions of check gauge.During use, at first make dial gauge (1) that suitable drafts is arranged, install used gauge head (4), regulate the distance between them, simultaneously, allow the plane of location-plate (9) equal 1/2nd check gauge external diameters to the distance on measuring center plane, after gauge head and check gauge correctly coincide and calibrate its size, can formal measuring workpieces.When measuring screw thread, hold handle knob (8), forefinger is depressed lever (2) gently, and the percentage gauge outfit is lifted, and descend the thread of gauge head on the measuring head base (7) and whorl work piece correctly identical before this, and the location-plate plane is flattened on the external diameter of workpiece.Afterwards, unclamp forefinger gently, gauge head on the last measuring head base (3) and workpiece thread coincide, and dial gauge reading at this moment promptly is the on footpath value of whorl work piece on the measured axis section.
Claims (3)
1, the utility model relates to a kind of cylinder external thread footpath table on.It mainly is made up of dial gauge [1], support [5], gauge head [4], last measuring head base [3], following measuring head base [7], location-plate [9] etc.It is characterized in that: support [5], gauge head [4] and location-plate [9].
2, cylinder external thread as claimed in claim 1 is shown in the footpath on, it is characterized in that: the two ends of support (5) are vertical with the carriage center plane and be used for installing measuring head base (3) and following measuring head base (7), the locating surface of location-plate (9) is a plane, and parallel with measurement plane, gauge head (4) is an externally threaded part opposite with the measured workpiece rotation direction.
3, the cylinder external thread shown in claim 1 is shown in the footpath on, and it is characterized in that: gauge head (4) has two, and its side is connected with (7) with upper and lower measuring head base (3) respectively.Upper and lower measuring head base matches with support (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 88220979 CN2048957U (en) | 1988-12-06 | 1988-12-06 | Pitch gauge for external screw threads of cylinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 88220979 CN2048957U (en) | 1988-12-06 | 1988-12-06 | Pitch gauge for external screw threads of cylinder |
Related Child Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 89208113 Division CN2060535U (en) | 1989-05-30 | 1989-05-30 | Single pitch diameter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2048957U true CN2048957U (en) | 1989-12-06 |
Family
ID=4853092
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 88220979 Withdrawn CN2048957U (en) | 1988-12-06 | 1988-12-06 | Pitch gauge for external screw threads of cylinder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2048957U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101451800B (en) * | 2007-12-06 | 2011-06-15 | 佛山普立华科技有限公司 | Dial indicators rack and regulating method thereof |
| CN102230774A (en) * | 2011-06-25 | 2011-11-02 | 无锡西姆莱斯石油专用管制造有限公司 | Adjustable calibrating device for measuring intermediate diameter of internal thread of oil casing |
| CN104197881A (en) * | 2014-08-28 | 2014-12-10 | 中北大学 | Medium diameter direct measuring instrument for cylindrical external thread |
| CN106767296A (en) * | 2016-12-19 | 2017-05-31 | 河南平高电气股份有限公司 | A kind of pitch diameter of external thread measurement apparatus |
-
1988
- 1988-12-06 CN CN 88220979 patent/CN2048957U/en not_active Withdrawn
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101451800B (en) * | 2007-12-06 | 2011-06-15 | 佛山普立华科技有限公司 | Dial indicators rack and regulating method thereof |
| CN102230774A (en) * | 2011-06-25 | 2011-11-02 | 无锡西姆莱斯石油专用管制造有限公司 | Adjustable calibrating device for measuring intermediate diameter of internal thread of oil casing |
| CN104197881A (en) * | 2014-08-28 | 2014-12-10 | 中北大学 | Medium diameter direct measuring instrument for cylindrical external thread |
| CN104197881B (en) * | 2014-08-28 | 2017-01-11 | 中北大学 | Medium diameter direct measuring instrument for cylindrical external thread |
| CN106767296A (en) * | 2016-12-19 | 2017-05-31 | 河南平高电气股份有限公司 | A kind of pitch diameter of external thread measurement apparatus |
| CN106767296B (en) * | 2016-12-19 | 2019-07-05 | 河南平高电气股份有限公司 | A kind of pitch diameter of external thread measuring device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |