CN214095792U - Caliper for measuring pitch diameter of thread - Google Patents
Caliper for measuring pitch diameter of thread Download PDFInfo
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- CN214095792U CN214095792U CN202023331620.3U CN202023331620U CN214095792U CN 214095792 U CN214095792 U CN 214095792U CN 202023331620 U CN202023331620 U CN 202023331620U CN 214095792 U CN214095792 U CN 214095792U
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- mounting hole
- pitch diameter
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Abstract
The utility model discloses a slide caliper rule for measuring screw thread pitch diameter, include: a ruler body; the first measuring jaw is connected to the ruler body and provided with a first mounting hole parallel to the ruler body, and the first mounting hole penetrates through two sides of the first measuring jaw; the second measuring jaw is movably connected to the ruler body, is positioned on the same side of the ruler body as the first measuring jaw, and is provided with a second mounting hole parallel to the ruler body, and the second mounting hole penetrates through two sides of the second measuring jaw; the first measuring head comprises a first mounting part and a first measuring part similar to the groove of the thread, the first mounting part is detachably mounted in the first mounting hole or the second mounting hole, and the first measuring part is used for extending into the groove of the thread; the second gauge head comprises a second mounting part and a second measuring part, the second mounting part is detachably mounted in the first mounting hole or the second mounting hole, the second measuring part is provided with a groove similar to the screw teeth, and the groove is used for abutting against the screw teeth during measurement. The scheme can simultaneously realize the measurement of the pitch diameters of the internal thread and the external thread, save the cost of the measuring tool and simplify the operation steps.
Description
Technical Field
The utility model relates to a measuring tool field, specific is a slide caliper rule for measuring screw thread pitch diameter.
Background
At present, the measuring tools and methods for the pitch diameter of the thread mainly comprise: a screw micrometer, a three-needle method and a universal tool microscope. However, the micrometer and the three-needle method can only be used for measuring the pitch diameter of the external thread, but cannot be used for measuring the pitch diameter of the internal thread, and the three-needle method is complicated in measuring mode, and the universal tool microscope is expensive and high in cost. Therefore, in the thread measuring occasion with not very high precision requirement, how to measure the thread by adopting a tool with low cost and simple and convenient operation is a technical problem which is solved by the technical personnel in the field.
SUMMERY OF THE UTILITY MODEL
In order to overcome the defects in the prior art, the embodiment of the utility model provides a slide caliper rule for measuring screw thread pitch diameter, it is used for solving above-mentioned problem.
The embodiment of the application discloses: a caliper for measuring pitch diameter of a thread for measuring internal and/or external threads, the internal and external threads each including a plurality of threads with a groove therebetween, the caliper for measuring pitch diameter of a thread comprising:
a ruler body;
the first measuring jaw is connected to the ruler body and provided with a first mounting hole of which the axis is parallel to the ruler body, and the first mounting hole penetrates through two sides of the first measuring jaw along the axis direction;
the second measuring jaw is movably connected to the ruler body and is arranged on the same side of the ruler body opposite to the first measuring jaw, a second mounting hole with the axis parallel to the ruler body is formed in the second measuring jaw, and the second mounting hole penetrates through two sides of the second measuring jaw along the axis direction;
the first measuring head comprises a first mounting part and a first measuring part, wherein the shape of the first measuring part is matched with that of the groove of the thread, the first mounting part is detachably mounted in the first mounting hole or the second mounting hole, and the first measuring part is used for extending into the groove of the thread during measurement;
the second measuring head comprises a second mounting part and a second measuring part, the second mounting part is detachably mounted in the first mounting hole or the second mounting hole, a groove matched with the screw teeth in shape is formed in the second measuring part, and the groove is used for abutting against the screw teeth during measurement;
when the first measuring part of the first measuring head and the second measuring part of the second measuring head are arranged oppositely, the caliper for measuring the pitch diameter of the thread can be used for measuring the internal thread;
when the first measuring part of the first measuring head and the second measuring part of the second measuring head are oppositely arranged, the caliper for measuring the pitch diameter of the thread can be used for measuring the external thread.
Specifically, the first mounting hole and/or the second mounting hole are threaded holes.
Specifically, the outer wall of the first mounting portion and/or the outer wall of the second mounting portion have a threaded structure.
Specifically, a first graduated scale is arranged on the first measuring jaw, the first graduated scale extends along the direction from the threaded hole to the scale body, and a graduation line corresponding to the zero point of the first graduated scale coincides with the axis of the threaded hole.
Specifically, a second graduated scale is arranged on the second measuring jaw, the second graduated scale extends along the direction from the threaded hole to the scale body, and a graduation line corresponding to the zero point of the second graduated scale coincides with the axis of the threaded hole.
Specifically, a step shaft is arranged between the first mounting portion and the first measuring portion, and the outer size of the step shaft is larger than the inner size of the first mounting hole and/or the second mounting hole.
Specifically, a step shaft is arranged between the second mounting portion and the second measuring portion, and the outer size of the step shaft is larger than the inner size of the first mounting hole and/or the second mounting hole.
Specifically, the thread pitch diameter measuring device further comprises a grating ruler, a grating ruler reading head and a digital display meter, wherein the grating ruler is arranged on the ruler body, the grating ruler reading head is fixedly connected with the second measuring jaw and can slide relative to the ruler body, and the digital display meter is used for being connected with the grating ruler reading head to display data.
The utility model discloses following beneficial effect has at least:
1. the caliper rule for measuring the pitch diameter of the threads of the embodiment can enable the first measuring head and the second measuring head to be installed in two different directions on the first measuring jaw and the second measuring jaw in a mode that the first mounting holes penetrating through two sides of the first measuring jaw and the second mounting holes penetrating through two sides of the second measuring jaw are arranged on the first measuring jaw, therefore, the inner threads and the outer threads can be measured simultaneously, and tool cost is saved. Meanwhile, the operation mode of the caliper for measuring the pitch diameter of the thread of the embodiment is substantially the same as that of a common caliper, so that the caliper has the advantages of simplicity and convenience in operation.
2. All can be equipped with the scale on the first graduated flask of this embodiment and the second graduated flask, consequently, when the slide caliper rule that is used for measuring the screw pitch diameter of this embodiment is used for measuring downthehole screw pitch diameter, can learn the downthehole degree of depth at the survey screw tooth place through the end wall of hole and the corresponding relation of the scale on first graduated flask and the second graduated flask, the personnel of being convenient for can measure and record the screw tooth of the different degree of depth in the hole.
In order to make the aforementioned and other objects, features and advantages of the present invention comprehensible, preferred embodiments accompanied with figures are described in detail below.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a caliper for measuring pitch diameter of a thread according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of a first measuring head in an embodiment of the present invention;
fig. 3 is a schematic structural diagram of a second measuring head in the embodiment of the present invention;
FIG. 4 is a schematic view of an installation manner of a caliper for measuring pitch diameter of a thread for measuring an internal thread according to an embodiment of the present invention;
FIG. 5 is a schematic view of the embodiment of the present invention when measuring the pitch diameter of the internal thread;
fig. 6 is a schematic view of an installation manner of the caliper for measuring pitch diameter of the thread for measuring the internal thread in the embodiment of the present invention;
fig. 7 is a schematic view of the embodiment of the present invention when measuring the pitch diameter of the external thread.
Reference numerals of the above figures: 1. a ruler body; 2. a first measuring jaw; 21. a first mounting hole; 3. a second measuring jaw; 31. a second mounting hole; 41. a first mounting portion; 42. a first measuring section; 51. a second mounting portion; 52. a second measuring section; 521. a groove; 61. a first scale; 62. a second scale; 7. a step shaft; 8. a digital display meter; 110. screw teeth; 120. and (4) a groove.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
The caliper for measuring the pitch diameter of the thread of the embodiment can be used for measuring the pitch diameters of internal threads in a hole and external threads on a shaft. Wherein, the internal thread and the external thread each include a plurality of threads 110, and a groove 120 is provided between two adjacent threads 110.
Referring to fig. 1 to 3, the caliper for measuring the pitch diameter of a thread according to the present embodiment includes:
a blade 1, which is substantially elongated.
The first measuring jaw 2 is connected to the ruler body 1 and provided with a first mounting hole 21. The axis of the first mounting hole 21 is parallel to the long axis direction of the ruler body 1, and the first mounting hole 21 penetrates through two sides of the first measuring jaw 2 along the axis direction. The first measuring jaw 2 is fixedly connected with the ruler body 1, and the first measuring jaw and the ruler body can be integrally formed and can also be fixedly connected in a detachable connection mode.
And the second measuring jaw 3 is connected to the ruler body 1 in a sliding manner, and the second measuring jaw 3 and the first measuring jaw 2 are oppositely arranged on the same side of the ruler body 1. The second measuring jaw 3 is provided with a second mounting hole 31, the axis of the second mounting hole 31 is parallel to the long axis direction of the ruler body 1, and the second mounting hole 31 penetrates through two sides of the second measuring jaw 3 along the axis direction. Preferably, the axis of the second mounting hole 31 coincides with the axis of the first mounting hole 21.
And a first measuring head which comprises a first mounting part 41 and a first measuring part 42 with the shape matched with the shape of the groove 120 of the thread. The first mounting portion 41 is configured to be detachably mounted in the first mounting hole 21 or the second mounting hole 31, and the first measuring portion 42 is configured to extend into the groove 120 of the screw thread to abut against the wall surfaces of the two screw threads 110 corresponding to the groove 120 at the time of measurement.
And a second gauge head including a second mounting portion 51 and a second measuring portion 52. Wherein the second mounting portion 51 is configured to be detachably mounted in the first mounting hole 21 or the second mounting hole 31; the second measuring portion 52 is provided with a groove 521 conforming to the shape of the screw thread 110, and the groove 521 is used for abutting against two wall surfaces of one screw thread 110 during measurement.
With particular reference to figures 4 and 5, when the first probe is mounted on the first jaw 2, the second probe is mounted on the second jaw 3, and the first measuring portion 42 and the second measuring portion 52 are disposed opposite each other; or, when the first measuring head is installed on the second measuring jaw 3, the second measuring head is installed on the first measuring jaw 2, and the first measuring part 42 and the second measuring part 52 are arranged in a reverse manner, the caliper for measuring the pitch diameter of the thread can be used for measuring the pitch diameter of the internal thread.
Referring to fig. 6 and 7, the caliper for measuring the pitch diameter of the thread according to the present embodiment may be used to measure the pitch diameter of the external thread when the first gauge head is attached to the first measuring jaw 2, the second gauge head is attached to the second measuring jaw 3, and the first measuring portion 42 and the second measuring portion 52 are disposed to face each other, or when the first gauge head is attached to the second measuring jaw 3, the second gauge head is attached to the first measuring jaw 2, and the first measuring portion 42 and the second measuring portion 52 are disposed to face each other.
For convenience of description, the side of the first measuring jaw 2 facing the second measuring jaw 3 may be defined as an inner side, and the side of the first measuring jaw 2 facing the second measuring jaw 3 may be defined as an outer side. Therefore, when the first measuring portion 42 is located on the outer side of the first measuring jaw 2 or the second measuring jaw 3, and the second measuring portion 52 is located on the outer side of the first measuring jaw 2 or the second measuring jaw 3, the caliper for measuring the pitch diameter of the thread of the present embodiment can be used for measuring the pitch diameter of the internal thread. When the first measuring portion 42 is located inside the first measuring jaw 2 or the second measuring jaw 3, and the second measuring portion 52 is located inside the first measuring jaw 2 or the second measuring jaw 3, the caliper for measuring the pitch diameter of the thread of the present embodiment may be used for measuring the pitch diameter of the external thread.
Borrow by above-mentioned structure, the slide caliper rule for measuring screw thread pitch diameter of this embodiment through be equipped with the first mounting hole 21 that link up its both sides on first measuring jaw 2, be equipped with the mode that link up the second mounting hole 31 of its both sides on second measuring jaw 3, can be so that first gauge head and second gauge head can be installed along two different directions on first measuring jaw 2 and second measuring jaw 3, consequently, can realize measuring internal thread and external screw thread simultaneously, saved instrument cost. Meanwhile, the operation mode of the caliper for measuring the pitch diameter of the thread of the embodiment is substantially the same as that of a common caliper, so that the caliper has the advantages of simplicity and convenience in operation.
Specifically, as shown in fig. 1, the first mounting hole 21 and/or the second mounting hole 31 of the present embodiment may be threaded holes. The outer wall of the first mounting portion 41 and/or the outer wall of the second mounting portion 51 may be provided with a screw structure (not shown) for engaging the screw hole. By adopting the scheme, the mounting mode of the first measuring head and/or the second measuring head can be simplified, and parts of the fastener are saved. In addition, the threaded connection mode is adopted, the concentricity of the axes of the first measuring part 42 and the second measuring part 52 after the first measuring head and the second measuring head are installed can be improved, and the improvement of the measuring precision is facilitated.
Specifically, as shown in fig. 1, the first measuring jaw 2 of the present embodiment may be provided with a first scale 61, the first scale 61 extends along a direction from the threaded hole to the blade 1, and a scale line corresponding to a zero point of the first scale 61 coincides with an axis of the threaded hole. The second measuring jaw 3 may also be provided with a second graduated scale 62, the second graduated scale 62 extends along the direction from the threaded hole to the blade 1, and the graduation line corresponding to the zero point of the second graduated scale 62 coincides with the axis of the threaded hole. By adopting the scheme, when the caliper for measuring the pitch diameter of the screw thread is used for measuring the internal screw thread in the hole, the distance that the first measuring jaw 2 and the second measuring jaw 3 extend into the hole can be judged according to the corresponding relation between the end wall of the hole and the first scale mark and/or the second scale mark, so that the depth of the measured screw thread 110 can be obtained, and a person can measure and record the screw threads 110 with different depths in the hole.
Specifically, as shown in fig. 2 and 3, in the first measuring head of the present embodiment, a step shaft 7 is further provided between the first mounting portion 41 and the first measuring portion 42, and a step shaft 7 may be provided between the second mounting portion 51 and the second measuring portion 52 of the second measuring head. The outer dimension of the step shaft 7 is larger than the inner dimension of the first mounting hole 21 and/or the second mounting hole 31, in other words, the step shaft 7 cannot extend into the first mounting hole 21 and the second mounting hole 31, so that when the first measuring head and/or the second measuring head are mounted, the step shaft 7 can be adopted for auxiliary limiting, and the mounting convenience of the measuring head is improved.
Specifically, as shown in fig. 1, the caliper for measuring the pitch diameter of the thread according to the present embodiment may further include a grating ruler (not shown), a grating ruler reading head (not shown), and a number display table 8. The grating ruler is arranged on the ruler body 1, the grating ruler reading head is fixedly connected with the second measuring jaw 3 and can slide relative to the ruler body 1, and the digital display meter 8 is used for being connected with the grating ruler reading head to display measured data. That is to say, the slide caliper for measuring the pitch diameter of the thread of this embodiment can be a digital display slide caliper, so, the convenience of reading when the slide caliper is measured can be improved.
In summary, the caliper for measuring the pitch diameter of the thread of the present embodiment is used in the following direction:
the matching mode of the first measuring head, the second measuring head and the thread is the same as the matching mode of the measuring head and the thread on the common thread micrometer. When the caliper for measuring the pitch diameter of the thread of the embodiment is used for measuring the external thread, the zeroing mode and the reading mode of the caliper are the same as those of a thread micrometer. When the caliper for measuring the pitch diameter of the thread according to this embodiment is used for measuring the internal thread, the pitch diameter of a standard internal thread can be measured and an actual value of the pitch diameter can be recorded, then the caliper is reset to zero when the first measuring head and the second measuring head respectively abut against the groove 120 and the thread 110 of the standard internal thread, then the caliper is used for measuring the internal thread to be measured, when the first measuring head and the second measuring head of the caliper abut against the groove 120 and the thread 110 of the standard internal thread, the caliper is used for reading the caliper (if the pitch diameter of the internal thread to be measured is larger than the pitch diameter of the standard internal thread, the reading is positive, if the pitch diameter of the internal thread to be measured is smaller than the pitch diameter of the standard internal thread, the reading is negative), and the reading and the pitch diameter value of the standard internal thread are added to obtain the pitch diameter value of the internal thread to be measured.
The present invention has been explained by using specific embodiments, and the explanation of the above embodiments is only used to help understand the method and the core idea of the present invention; meanwhile, for the general technical personnel in the field, according to the idea of the present invention, there are changes in the specific implementation and application scope, to sum up, the content of the present specification should not be understood as the limitation of the present invention.
Claims (8)
1. A caliper for measuring pitch diameter of a thread for measuring internal and/or external threads, the internal and external threads each comprising a plurality of threads with a groove therebetween, wherein the caliper for measuring pitch diameter of a thread comprises:
a ruler body;
the first measuring jaw is connected to the ruler body and provided with a first mounting hole of which the axis is parallel to the ruler body, and the first mounting hole penetrates through two sides of the first measuring jaw along the axis direction;
the second measuring jaw is movably connected to the ruler body and is arranged on the same side of the ruler body opposite to the first measuring jaw, a second mounting hole with the axis parallel to the ruler body is formed in the second measuring jaw, and the second mounting hole penetrates through two sides of the second measuring jaw along the axis direction;
the first measuring head comprises a first mounting part and a first measuring part, wherein the shape of the first measuring part is matched with that of the groove of the thread, the first mounting part is detachably mounted in the first mounting hole or the second mounting hole, and the first measuring part is used for extending into the groove of the thread during measurement;
the second measuring head comprises a second mounting part and a second measuring part, the second mounting part is detachably mounted in the first mounting hole or the second mounting hole, a groove matched with the screw teeth in shape is formed in the second measuring part, and the groove is used for abutting against the screw teeth during measurement;
when the first measuring part of the first measuring head and the second measuring part of the second measuring head are arranged oppositely, the caliper for measuring the pitch diameter of the thread can be used for measuring the internal thread;
when the first measuring part of the first measuring head and the second measuring part of the second measuring head are oppositely arranged, the caliper for measuring the pitch diameter of the thread can be used for measuring the external thread.
2. A calliper for measuring the pitch diameter of a thread according to claim 1, wherein said first mounting hole and/or said second mounting hole is a threaded hole.
3. A calliper for measuring the pitch diameter of a thread according to claim 2, wherein the outer wall of the first mounting portion and/or the outer wall of the second mounting portion has a thread formation.
4. A caliper for measuring pitch diameter of threads according to claim 2, wherein a first graduated scale is arranged on the first measuring jaw, the first graduated scale extends along the direction from the threaded hole to the blade, and a graduation line corresponding to the zero point of the first graduated scale coincides with the axis of the threaded hole.
5. A caliper for measuring pitch diameter of threads according to claim 2, wherein a second graduated scale is arranged on the second measuring jaw, the second graduated scale extends along the direction from the threaded hole to the blade, and a graduation line corresponding to the zero point of the second graduated scale coincides with the axis of the threaded hole.
6. A calliper for measuring the pitch diameter of a thread according to claim 1, wherein there is a step shaft between the first mounting portion and the first measuring portion, the step shaft having an outer dimension greater than the inner dimension of the first and/or second mounting aperture.
7. A calliper for measuring the pitch diameter of a thread according to claim 1, wherein there is a step shaft between the second mounting portion and the second measuring portion, the step shaft having an outer dimension greater than the inner dimension of the first and/or second mounting aperture.
8. The caliper for measuring the pitch diameter of the threads according to claim 1, further comprising a grating ruler, a grating ruler reading head and a digital display, wherein the grating ruler is arranged on the ruler body, the grating ruler reading head is fixedly connected with the second measuring jaw and can slide relative to the ruler body, and the digital display is used for being connected with the grating ruler reading head to display data.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023331620.3U CN214095792U (en) | 2020-12-30 | 2020-12-30 | Caliper for measuring pitch diameter of thread |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023331620.3U CN214095792U (en) | 2020-12-30 | 2020-12-30 | Caliper for measuring pitch diameter of thread |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214095792U true CN214095792U (en) | 2021-08-31 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202023331620.3U Active CN214095792U (en) | 2020-12-30 | 2020-12-30 | Caliper for measuring pitch diameter of thread |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214095792U (en) |
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2020
- 2020-12-30 CN CN202023331620.3U patent/CN214095792U/en active Active
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