CN205448927U - A gauge for measuring internal thread degree of depth - Google Patents
A gauge for measuring internal thread degree of depth Download PDFInfo
- Publication number
- CN205448927U CN205448927U CN201520950291.0U CN201520950291U CN205448927U CN 205448927 U CN205448927 U CN 205448927U CN 201520950291 U CN201520950291 U CN 201520950291U CN 205448927 U CN205448927 U CN 205448927U
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- gauge
- gauge head
- depth
- screw
- thread
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Abstract
The utility model discloses a gauge for measuring internal thread degree of depth, including screw thread measurement portion and removal section of thick bamboo portion, move section of thick bamboo portion including moving a section of thick bamboo, move a section of thick bamboo and include upper limit interface and lower limit interface, screw thread measurement portion includes screw thread gauge head, gauge head mounting and the set screw, and screw thread gauge head and the gomphosis of gauge head mounting compress tightly with the set screw. Has following advantage: whether qualifiedly through estimating snap judgments within range, the error reduces, practices thrift the human cost, takes out the gauge, and with the help of measuring tool such as slide caliper rule, light accuracy reads measured data, and the standard component of factory, easy processing, preparation simple process, low cost, the easy operation of purchaseing are made in the optional quantity regulation of gauge head change.
Description
Technical field
This utility model relates to a kind of external thread gauge measuring depth of internal thread, more particularly to a kind of specification measuring female thread and the special measuring tool of the degree of depth simultaneously, belongs to inspection measurer field.
Background technology
Thread gage is widely used in screw measurement field at present, the size (diameter of thread and pitch) that regular screw threads rule are commonly used to inspection screw thread is the most correct, to judge that specification is to meet the requirements, in field of machining, because the working depth of female thread is related to the mechanical strength of workpiece, depth dimensions accuracy is proposed the highest requirement.The gauge of the depth of thread can be measured put on market the most already and start application, because price is higher, be confined to the industry that workpiece depth of internal thread dimensional requirement is the highest.
It is high that unit price bought by the existing external thread gauge that can fathom, mainly foreign brand name, when measuring screw thread frequency height, need to frequently change measurement end, and overall use cost remains high.
Existing conventional simple and easy method is, uses regular screw threads gauge to screw in female thread, and by slide calliper rule (or depth indicator) gauge rear end size, external thread gauge overall length deducts rear end size, the method calculating the depth of thread.Because of gauge screw in workpiece, during with kind of calliper rear end, perpendicularity it is difficult to ensure that, easily cause the bigger error of artificial origin, the measurement result deviation that different survey crews draws is the biggest.For the female thread that precision prescribed is high, it is impossible to make and judging accurately, check that efficiency is the lowest.Detected female thread is the most always in easily detection or reads the position of scale, is frequently encountered and is difficult to stretch into the survey tools such as slide calliper rule, normal reading maybe cannot be taked to observe attitude, now, then can not the internal threads degree of depth realize effectively measuring.
Summary of the invention
The technical problems to be solved in the utility model is for above not enough, it is provided that a kind of gauge for measuring depth of internal thread, has in quickly judging whether acceptability limit by range estimation, error reduces, save human cost, take out gauge, by survey tools such as slide calliper rule, easily accurately read measurement data, gauge head replacing can be selected for gauge and makes the standard component of factory, it is easy to buying processing, processing technology is simple, advantage with low cost, simple to operate.
For solve above technical problem, this utility model by the following technical solutions:
A kind of gauge for measuring depth of internal thread, including moving cylinder portion, described moving cylinder portion includes that moving cylinder, moving cylinder include upper limit interface and lower boundary.
Further, between described upper limit interface and lower boundary spacing as the acceptability limit of tested screw thread.
Further, the surface roughness value of the lower end surface of described moving cylinder is more than 3.2.
Further, described gauge also includes screw measurement portion.
Further, described screw measurement portion includes screw thread gauge head, gauge head fixture and set screw, and screw thread gauge head is chimeric with gauge head fixture, compresses with set screw.
Further, the end face of the lower end that described screw thread gauge head probes into female thread is plane.
Further, described gauge head fixture is nested in moving cylinder, and the rear end face in screw measurement portion aligns with the lower boundary of moving cylinder so that the degree of depth that the tested depth of thread specifies equal to tested screw thread, moving cylinder and gauge head fixture is locked with positioning knob.
Further, whether the rear end face in described screw measurement portion, between upper limit interface and lower boundary, is used for judging that tested screw thread is the most qualified.
Further, described screw thread gauge head is replaced by bore diameter gauge head, it is achieved the measurement of drilling depth.
Further, high scale line between the interfacial level of described upper limit interface and lower boundary, can be drawn, establish acceptability limit.
In this utility model, gauge processing technology is simple, with low cost, simple to operate, and gauge head replacing can be selected for gauge and makes the standard component of factory, it is easy to buy processing；The degree of depth, the external thread gauge of use, while checking screw thread specification, checks that result is delivered to the top of gauge, in quickly judging whether acceptability limit by range estimation, inspection work efficiency is greatly improved, and error reduces, and saves human cost；Taking-up gauge, by survey tools such as slide calliper rule, the most accurately reads measurement data；Being applicable to threaded upper portion initiating terminal has the female thread of certain datum plane to measure, and changes and measures end, it is also possible to measure drilling depth.
With embodiment, this utility model is described in detail below in conjunction with the accompanying drawings.
Accompanying drawing explanation
Fig. 1 be this utility model embodiment gauge in screw measurement portion structural representation；
Fig. 2 be this utility model embodiment gauge in screw measurement portion structural representation；
Fig. 3 is the structural representation after the gauge assembling of this utility model embodiment；
In figure: 1-screw thread gauge head, 2-gauge head fixture, 3-set screw, 4-moving cylinder, 5-housing, 6-upper limit interface, boundary under 7-, the rear end face in 8-screw measurement portion, the length of a-gauge head fixture, the length of d-moving cylinder, the lower end surface of f-moving cylinder, the tested depth of thread of h-.
Detailed description of the invention
Embodiment, as shown in Figure 1, Figure 2 and Figure 3, a kind of gauge for measuring depth of internal thread, including screw measurement portion and moving cylinder portion.
Described screw measurement portion includes screw thread gauge head 1, gauge head fixture 2 and set screw 3, and screw thread gauge head 1 is chimeric with gauge head fixture 2, compresses with set screw 3.
Described moving cylinder portion includes that moving cylinder 4, moving cylinder 4 include upper limit interface 6 and lower boundary 7, and between upper limit interface 6 and lower boundary 7, spacing is as the acceptability limit of tested screw thread, and the surface roughness value of lower end surface f of moving cylinder 4 is more than 3.2.
Length a of described gauge head fixture 2 is identical with length d of moving cylinder 4.
The end face of the lower end that described screw thread gauge head 1 probes into female thread is plane.
Described gauge head fixture 2 is nested in moving cylinder 4, and the rear end face 8 in screw measurement portion aligns with the lower boundary 7 of moving cylinder 4 so that the degree of depth that tested depth of thread h specifies equal to tested screw thread, moving cylinder 4 and gauge head fixture 2 is locked with positioning knob 5.
Whether the rear end face 8 in described screw measurement portion, between upper limit interface 6 and lower boundary 7, is used for judging that tested screw thread is the most qualified.
Described screw thread gauge head 1 is replaced by bore diameter gauge head, it is achieved the measurement of drilling depth.
High scale line can be drawn between the interfacial level of described upper limit interface 6 and lower boundary 7, establish acceptability limit.
The gauge assembled is screwed into and tested is threaded into the bottom of thread, unclamp positioning knob 5, pressing moving cylinder 4 top, make lower end surface f of moving cylinder 4 sturdy with depth of thread datum plane, whether the rear end face 8 in range estimation screw measurement portion, between upper limit interface 6 and lower boundary 7, goes beyond the scope, sentences this tested screw thread defective.
When if desired determining the concrete size of tested screw thread, screw positioning knob 5, scale is made to be locked in detected position, screw out gauge, with with slide gauge or depth indicator (or other survey tool), measure screw-in depth size, the 0.5P(P=pitch of useful thread=fathom-initiate end face).
The daily spot check of gauge, uses standard gauge block, micrometric depth gauge to calibrate.
Description of the present utility model is given for the sake of example and description, and is not exhaustively or this utility model to be limited to disclosed form.Many modifications and variations are obvious for the ordinary skill in the art.Selecting and describing embodiment is to better illustrate principle of the present utility model and actual application, and makes those of ordinary skill in the art it will be appreciated that this utility model thus design are suitable to the various embodiments with various amendments of special-purpose.
Claims (7)
1. for measuring a gauge for depth of internal thread, including moving cylinder portion and screw measurement portion, it is characterised in that: described moving cylinder portion includes that moving cylinder (4), moving cylinder (4) include upper limit interface (6) and lower boundary (7)；
Described screw measurement portion includes screw thread gauge head (1), gauge head fixture (2) and set screw (3), and screw thread gauge head (1) is chimeric with gauge head fixture (2), compresses with set screw (3)；
Described gauge head fixture (2) is nested in moving cylinder (4), the rear end face (8) in screw measurement portion aligns with the lower boundary (7) of moving cylinder (4), make the degree of depth that the tested depth of thread (h) specifies equal to tested screw thread, with positioning knob (5), moving cylinder (4) and gauge head fixture (2) are locked.
A kind of gauge for measuring depth of internal thread, it is characterised in that: between described upper limit interface (6) and lower boundary (7), spacing is as the acceptability limit of tested screw thread.
A kind of gauge for measuring depth of internal thread, it is characterised in that: the surface roughness value of the lower end surface (f) of described moving cylinder (4) is more than 3.2.
A kind of gauge for measuring depth of internal thread, it is characterised in that: the end face of the lower end that described screw thread gauge head (1) probes into female thread is plane.
A kind of gauge for measuring depth of internal thread, it is characterised in that: when tested screw thread is qualified, the rear end face (8) in described screw measurement portion is positioned between upper limit interface (6) and lower boundary (7).
A kind of gauge for measuring depth of internal thread, it is characterised in that: described screw thread gauge head (1) is replaced by bore diameter gauge head, it is achieved the measurement of drilling depth.
A kind of gauge for measuring depth of internal thread, it is characterised in that: high scale line can be drawn between the interfacial level of described upper limit interface (6) and lower boundary (7), establish acceptability limit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520950291.0U CN205448927U (en) | 2015-11-25 | 2015-11-25 | A gauge for measuring internal thread degree of depth |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520950291.0U CN205448927U (en) | 2015-11-25 | 2015-11-25 | A gauge for measuring internal thread degree of depth |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205448927U true CN205448927U (en) | 2016-08-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520950291.0U Active CN205448927U (en) | 2015-11-25 | 2015-11-25 | A gauge for measuring internal thread degree of depth |
Country Status (1)
| Country | Link |
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| CN (1) | CN205448927U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107401962A (en) * | 2017-08-17 | 2017-11-28 | 沈阳富创精密设备有限公司 | A kind of depth of thread rule of replaceable gauge head and application method |
| CN110487156A (en) * | 2019-09-25 | 2019-11-22 | 哈尔滨电气动力装备有限公司 | Diverter trapezoidal copper bar detection rule |
-
2015
- 2015-11-25 CN CN201520950291.0U patent/CN205448927U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107401962A (en) * | 2017-08-17 | 2017-11-28 | 沈阳富创精密设备有限公司 | A kind of depth of thread rule of replaceable gauge head and application method |
| CN110487156A (en) * | 2019-09-25 | 2019-11-22 | 哈尔滨电气动力装备有限公司 | Diverter trapezoidal copper bar detection rule |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |