CN212512868U - Wedge-shaped anti-loosening threaded fastener measuring gauge - Google Patents
Wedge-shaped anti-loosening threaded fastener measuring gauge Download PDFInfo
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- CN212512868U CN212512868U CN202021446378.1U CN202021446378U CN212512868U CN 212512868 U CN212512868 U CN 212512868U CN 202021446378 U CN202021446378 U CN 202021446378U CN 212512868 U CN212512868 U CN 212512868U
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Abstract
The utility model relates to a wedge locking thread fastener measuring gauge, include: the reference table is provided with an upper side reference surface for the end surface of the wedge-shaped anti-loose thread fastener to be detected to be pressed; the perpendicularity measuring stud is upwards arranged on the upper side reference surface in a protruding mode, and the axial direction of the perpendicularity measuring stud is perpendicular to the upper side reference surface; the wedge-shaped external thread section is matched with the wedge-shaped internal thread of the wedge-shaped anti-loosening thread fastener to be tested; and the coaxiality measuring column is fixedly arranged at the lower part of the reference table, is coaxially arranged with the verticality measuring stud and is provided with a reference outer circumferential surface. The utility model provides a wedge locking threaded fastener measuring gauge has both had the straightness measurement double-screw bolt that hangs down, still has the axiality and measures the post, and the axiality of guaranteeing both man-hour is on guaranteeing accurate measuring basis, can accomplish the measurement of straightness and axiality of hanging down through once installing and removing, need not relapse the dismouting, has effectively simplified measurement process, has reduced workman intensity of measurement.
Description
Technical Field
The utility model relates to a wedge locking thread fastener measuring gauge.
Background
In order to improve the anti-loosening capacity of threaded fasteners such as nuts, thread sleeves and the like, a 30-degree wedge-shaped anti-loosening nut 1 is designed according to the standard, the structure of the anti-loosening nut is shown in figures 1 and 2, a 30-degree inclined surface is arranged at the crest position of an internal thread section 11 to form a wedge-shaped thread, and when the anti-loosening nut is matched with a common external thread in a spiral mode, the anti-loosening performance of the nut can be effectively improved by utilizing extrusion deformation generated by the 30-degree inclined surface. The fastener has a good locking function, does not need to be additionally provided with any locking mechanism, and is convenient to use. With the rapid development of the fasteners, the fasteners are widely applied to the fields of aviation, aerospace, railways, automobiles and the like.
At present, when producing such wedge locking threaded fastener, need measure threaded fastener's straightness and axiality of hanging down, at present, need adopt corresponding device to measure respectively, still need make a round trip to dismouting threaded fastener, it is comparatively loaded down with trivial details. And when the perpendicularity is measured, the perpendicularity is measured by adopting a common metric thread perpendicularity gauge, and during measurement, a fastener to be measured is required to be screwed on a corresponding stud, and then a feeler gauge is plugged in to measure the perpendicularity. Because metric screw thread and wedge thread can not accurate coincide, lead to ordinary metric screw thread vertical gauge to accomplish accurate measurement hardly, measurement accuracy is relatively poor.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a wedge locking threaded fastener measuring gauge to solve among the prior art need make a round trip dismouting threaded fastener when measuring straightness and axiality and lead to the comparatively loaded down with trivial details technical problem of measurement process.
In order to achieve the purpose, the utility model provides a wedge locking thread fastener measuring gauge's technical scheme is: a wedge lockthread fastener gauge comprising:
the reference table is provided with an upper side reference surface for the end surface of the wedge-shaped anti-loose thread fastener to be detected to be pressed;
a perpendicularity measuring stud disposed on the upper side reference surface in an upward protruding manner, the axial direction of the stud being disposed perpendicular to the upper side reference surface;
the wedge-shaped external thread section is arranged on the perpendicularity measuring stud and is matched with the wedge-shaped internal thread of the wedge-shaped anti-loosening thread fastener to be measured in a matching manner;
and the coaxiality measuring column is fixedly arranged at the lower part of the reference table, is coaxially arranged with the verticality measuring stud, and is provided with a reference outer circumferential surface for clamping and fixing.
The beneficial effects are that: the utility model provides a wedge locking thread fastener measuring gauge has both had the straightness measurement double-screw bolt that hangs down on, is equipped with the wedge external screw thread section on it, still has the axiality and measures the post, guarantees both axiality when adding man-hour, on guaranteeing accurate measuring basis, can accomplish the measurement of straightness and axiality of hanging down through once installing and removing, need not relapse the dismouting, has effectively simplified measurement process, has reduced workman intensity of measurement.
As a further improvement, the reference platform, the perpendicularity measuring stud and the coaxiality measuring column are of an integrated structure.
The beneficial effects are that: the reference platform, the perpendicularity measuring stud and the coaxiality measuring column are of an integrated structure, so that the processing of the perpendicularity measuring stud and the coaxiality measuring column is completed by adopting a unified reference under the condition of clamping the reference platform, and the coaxiality of the perpendicularity measuring stud and the coaxiality measuring column is facilitated.
As a further improvement, the reference platform, the perpendicularity measuring stud and the coaxiality measuring column are all machined from hard alloy.
The beneficial effects are that: the measuring gauge is manufactured by processing hard alloy, has the characteristics of high hardness, wear resistance and the like, and can realize accurate measurement.
As a further improvement, the perpendicularity of the perpendicularity measuring stud to the upper reference surface is < 0.006 [ mu ] m, and the roughness of the upper reference surface is < Ra0.1.
As a further improvement, the radial dimension of the reference stage is greater than the radial dimension of the coaxiality measuring column.
The beneficial effects are that: the radial dimension of the coaxiality measuring column is small, and the weight of the whole measuring gauge can be effectively reduced under the condition of ensuring coaxial clamping.
As a further improvement, the reference table is cylindrical.
The beneficial effects are that: the reference platform is cylindrical, so that the appearance is attractive, and the clamping and fixing are convenient.
As a further improvement, a tool withdrawal groove is arranged at the root part of the perpendicularity measuring stud.
The beneficial effects are that: a tool withdrawal groove is arranged at the root of the stud for perpendicularity measurement, so that a wedge-shaped external thread section on the stud can be conveniently machined.
As a further improvement, the radial dimension of the coaxiality measuring column is greater than the radial dimension of the perpendicularity measuring stud.
Drawings
Fig. 1 is a schematic structural view of a conventional 30 ° wedge locknut;
FIG. 2 is an enlarged view of a portion of the internal thread segment at A of FIG. 1;
fig. 3 is a schematic structural view of embodiment 1 of the wedge-shaped anti-loosening threaded fastener gauge provided by the present invention;
FIG. 4 is an enlarged view of a portion of the wedge-shaped male thread section at B in FIG. 2;
FIG. 5 is a schematic diagram of the measurement of the perpendicularity of the locknut shown in FIG. 1 by using the gauge shown in FIG. 3;
fig. 6 is an enlarged view of the portion of fig. 5 where the female thread is engaged with the wedge-shaped male thread section.
Description of reference numerals:
the measuring method comprises the following steps of 1-wedge-shaped locknut, 10-mounting end face, 11-internal thread section, 2-perpendicularity measuring stud, 21-wedge-shaped external thread section, 3-tool withdrawal groove, 4-upper side reference face, 5-reference table, 6-coaxiality measuring column and 7-clearance gauge.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the invention, i.e., the described embodiments are only some, but not all embodiments of the invention. The components of embodiments of the present invention, as generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiment of the present invention, all other embodiments obtained by the person skilled in the art without creative work belong to the protection scope of the present invention.
It is noted that relational terms such as "first" and "second," and the like, may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, elements recited by the phrase "comprising an … …" do not exclude the inclusion of such elements in processes or methods.
In the description of the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" when they are used are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; either directly or indirectly through intervening media, or may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those skilled in the art from the specific situation.
In the description of the present invention, it should be noted that, unless explicitly stated or limited otherwise, the term "provided" may be used in a broad sense, for example, the object of "provided" may be a part of the body, or may be arranged separately from the body and connected to the body, and the connection may be a detachable connection or a non-detachable connection. The specific meaning of the above terms in the present invention can be understood by those skilled in the art from the specific situation.
The present invention will be described in further detail with reference to examples.
The utility model provides a specific embodiment 1 of wedge locking threaded fastener gauge:
as shown in fig. 3 to 6, the wedge-shaped check thread fastener gauge in this embodiment includes an upper perpendicularity measuring stud 2, a middle reference table 5, and a lower coaxiality measuring post 6, which are integrally formed of cemented carbide.
The middle reference table 5 is cylindrical, the radial dimension of the middle reference table is the largest, the upper side reference surface 4 is arranged on the upper portion of the reference table and serves as a reference surface for abutting against the end face of the wedge-shaped check threaded fastener to be measured, as shown in fig. 6, the mounting end of the wedge-shaped check nut 1 can abut against the upper side reference surface 4, the wedge-shaped check nut 1 is shown to be assembled in place, and perpendicularity measurement can be conducted.
A perpendicularity measuring stud 2 is integrally and upwardly protrudingly arranged on the upper side reference surface 4, and the axial direction of the perpendicularity measuring stud 2 is arranged perpendicular to the upper side reference surface 4.
The wedge-shaped external thread section 21 is arranged on the verticality measuring stud 2, as shown in fig. 4, the structure of the wedge-shaped external thread section 21 is matched and matched with the internal thread section 11 of the wedge-shaped locknut shown in fig. 2, and the wedge-shaped locknut 1 and the wedge-shaped locknut can be screwed together in a high-precision matching mode.
In the design, the machining problem is considered, the tool withdrawal groove 3 is also arranged at the root of the stud 2 for measuring the verticality, on one hand, the wedge-shaped external thread section 21 is conveniently machined on the stud 2 for measuring the verticality, and on the other hand, the shape of the stud matched with the wedge-shaped locknut can be better simulated.
The reference table 5 is cylindrical, the radial size of the reference table is the largest, and a larger upper side reference surface 4 can be provided to be in press fit with wedge-shaped locknuts with different radial sizes, so that the fastener with a larger area can be conveniently in press fit, and the application range of the measuring gauge is expanded.
The coaxiality measuring column 6 at the lower part is also cylindrical, is provided with a reference outer peripheral surface and is coaxially arranged with the verticality measuring stud 2 so as to be convenient for positioning, clamping and fixing of the chuck, and the radial dimension of the coaxiality measuring column is smaller than that of the reference platform and larger than that of the verticality measuring stud, so that the clamping is convenient, and the quality of the whole measuring gauge can be reduced.
Because the coaxiality measuring column 6 and the perpendicularity measuring stud 2 are of an integrated structure, corresponding machining benchmarks are adopted during machining and manufacturing, the coaxiality of the coaxiality measuring column and the perpendicularity measuring stud is conveniently guaranteed, and the measuring accuracy can be further guaranteed. And the verticality and the coaxiality can be measured by clamping once in place, and frequent disassembly and assembly are not needed.
In the measuring gauge provided by the embodiment, the whole body is made of hard alloy, and the measuring gauge has the characteristics of high hardness, wear resistance and the like, the standard and the thread shape of the wedge-shaped external thread section on the measuring gauge are designed by adding 30-degree inclined planes on the basis of a common thread verticality gauge, as shown in fig. 4, the verticality of the verticality measuring stud 2 relative to the upper reference plane 4 is less than 0.006 mu m, the roughness of the upper reference plane 4 is less than Ra0.1, and the verticality of the wedge-shaped locknut 1 can be measured very accurately.
As shown in fig. 5 and fig. 6, during measurement, the coaxiality measuring column 6 is clamped in a corresponding chuck (the chuck is not shown) first, then the wedge-shaped locknut 1 shown in fig. 1 is screwed on the verticality measuring stud, the mounting end face 10 of the wedge-shaped locknut is directly pressed on the upper side reference face 4, at the moment, the wedge-shaped external thread section 21 on the verticality measuring stud 2 can be matched and matched with the internal thread section 11 on the wedge-shaped locknut 1, then the clearance gauge 7 with the corresponding thickness is clamped into the gap between the upper side reference face 4 and the wedge-shaped locknut 1, at the moment, if the three parts are tightly attached, the thickness of the corresponding part of the clearance gauge is the verticality of the wedge-shaped locknut.
After the verticality measurement is completed, the wedge-shaped locknut does not need to be assembled and disassembled again, the dial indicator is directly used for jacking and pressing the periphery of the wedge-shaped locknut, the measuring gauge and the wedge-shaped locknut are rotated, a plurality of points are measured in the circumferential direction, and the coaxiality of the wedge-shaped locknut is finally determined.
If the peripheral surface of the wedge-shaped loose nut is not a circumferential surface but a six-sided or four-sided structure, the measuring head of the dial indicator can be utilized to vertically press against a corresponding plane, and the verticality of the wedge-shaped loose nut can also be determined.
The utility model provides a specific embodiment 2 of wedge locking threaded fastener gauge:
it differs from example 1 mainly in that: in embodiment 1, the radial dimension of the reference table is greater than the radial dimension of the coaxiality measuring column, and on the basis of ensuring coaxial processing, in this embodiment, the radial dimensions of the reference table and the coaxiality measuring column are consistent and both have a cylindrical structure.
The utility model provides a specific embodiment 3 of wedge locking threaded fastener gauge:
it differs from example 1 mainly in that: in embodiment 1, the reference table is cylindrical, so that the reference table can be conveniently clamped to obtain the verticality measuring stud and the coaxiality measuring column through machining, and the reference table can also be of a polygonal structure on the basis of ensuring normal clamping.
The utility model provides a specific embodiment 4 of wedge locking threaded fastener gauge:
it differs from example 1 mainly in that: in embodiment 1, the reference platform, the perpendicularity measuring stud and the coaxiality measuring column are of an integrated structure, and on the basis of ensuring the coaxial arrangement of the perpendicularity measuring stud and the coaxiality measuring column, in the embodiment, the perpendicularity measuring stud and the reference platform are integrally arranged, the coaxiality measuring column is assembled with the reference platform in a split threaded mode, the reference platform can be clamped at one time through specific machining, the perpendicularity measuring stud and the internal threaded hole are obtained through simultaneous machining, the internal threaded hole and the perpendicularity measuring stud are coaxially arranged, then the corresponding coaxiality measuring column is screwed into the internal threaded hole, and the coaxiality of the coaxiality measuring column and the perpendicularity.
The utility model provides a measuring gauge not only can be used to measure wedge locknut, still can be used to measure the locking swivel nut of wedge, as long as can accurate spiral assembly be at the wedge locking threaded fastener on the straightness measurement double-screw bolt that hangs down, be the variable tooth locknut in CN209523986U like the authorization notice number, all can adopt foretell measuring gauge to carry out the measurement of straightness and axiality of hanging down.
The utility model provides a both have the straightness measurement double-screw bolt that hangs down on the gauge, be equipped with wedge external screw thread section on it, still have the axiality and measure the post, guarantee both axiality man-hour, on guaranteeing accurate measuring basis, can accomplish the measurement of straightness and axiality of hanging down through once installing and removing, need not relapse the dismouting, effectively simplified measurement process, reduced workman intensity of measurement.
Finally, it should be noted that the above mentioned embodiments are only preferred embodiments of the present invention, and not intended to limit the present invention, and although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made without inventive effort to the technical solutions described in the foregoing embodiments, or equivalents may be substituted for some of the technical features. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (8)
1. A wedge check thread fastener gauge, comprising:
the reference table is provided with an upper side reference surface for the end surface of the wedge-shaped anti-loose thread fastener to be detected to be pressed;
a perpendicularity measuring stud disposed on the upper side reference surface in an upward protruding manner, the axial direction of the stud being disposed perpendicular to the upper side reference surface;
the wedge-shaped external thread section is arranged on the perpendicularity measuring stud and is matched with the wedge-shaped internal thread of the wedge-shaped anti-loosening thread fastener to be measured in a matching manner;
and the coaxiality measuring column is fixedly arranged at the lower part of the reference table, is coaxially arranged with the verticality measuring stud, and is provided with a reference outer circumferential surface for clamping and fixing.
2. The wedge lockthread fastener gauge of claim 1, wherein the reference table, perpendicularity measuring stud and concentricity measuring post are of unitary construction.
3. The wedge-shaped anti-loosening threaded fastener measuring gauge according to claim 2, wherein the reference table, the perpendicularity measuring stud and the coaxiality measuring column are all machined from cemented carbide.
4. The wedge lockthread fastener gauge of claim 3, wherein the perpendicularity of the perpendicularity measuring stud to the upper datum surface is < 0.006 μm, and the roughness of the upper datum surface is < ra0.1.
5. The wedge lock thread fastener gauge of claim 1, 2 or 3, wherein the radial dimension of the reference table is greater than the radial dimension of the concentricity measurement post.
6. The wedge lockthread fastener gage of claim 5 wherein said reference table is cylindrical.
7. The wedge-shaped anti-loose thread fastener measuring gauge according to claim 1, 2 or 3, wherein a relief groove is provided at the root of the perpendicularity measuring stud.
8. The wedge lockthread fastener gauge of claim 1, 2 or 3, wherein the radial dimension of the concentricity measurement post is greater than the radial dimension of the perpendicularity measurement stud.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021446378.1U CN212512868U (en) | 2020-07-21 | 2020-07-21 | Wedge-shaped anti-loosening threaded fastener measuring gauge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021446378.1U CN212512868U (en) | 2020-07-21 | 2020-07-21 | Wedge-shaped anti-loosening threaded fastener measuring gauge |
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| CN212512868U true CN212512868U (en) | 2021-02-09 |
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| CN202021446378.1U Active CN212512868U (en) | 2020-07-21 | 2020-07-21 | Wedge-shaped anti-loosening threaded fastener measuring gauge |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114279302A (en) * | 2021-12-08 | 2022-04-05 | 广汽本田汽车有限公司 | Stud assembling verticality detection device |
| CN114322722A (en) * | 2021-12-23 | 2022-04-12 | 中国航空工业集团公司西安航空计算技术研究所 | Coaxiality and verticality gauge checking fixture assembly and checking method |
-
2020
- 2020-07-21 CN CN202021446378.1U patent/CN212512868U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114279302A (en) * | 2021-12-08 | 2022-04-05 | 广汽本田汽车有限公司 | Stud assembling verticality detection device |
| CN114322722A (en) * | 2021-12-23 | 2022-04-12 | 中国航空工业集团公司西安航空计算技术研究所 | Coaxiality and verticality gauge checking fixture assembly and checking method |
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