CN216159796U - Depth thread gauge - Google Patents
Depth thread gauge Download PDFInfo
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- CN216159796U CN216159796U CN202122263927.2U CN202122263927U CN216159796U CN 216159796 U CN216159796 U CN 216159796U CN 202122263927 U CN202122263927 U CN 202122263927U CN 216159796 U CN216159796 U CN 216159796U
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- thread
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- depth
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Abstract
The utility model discloses a depth thread gauge, belonging to the technical field of measuring tools and checking tools.A handle is connected with a thread no-go gauge at one end and a thread go gauge at the other end; the handle, the thread no-go gauge and the thread go gauge are coaxial; the utility model combines a thread plug gauge and a depth go-no go gauge, designs a thread gauge with depth: the thread plug gauge portion may be used to measure thread size and the pass-through portion may be used to measure depth size. During the screw thread precision measurement, screw thread lead to inside rule and the screw thread no-go gage screw in work piece screw hole that awaits measuring respectively, if the screw thread leads to the rule can the screw in, the screw thread no-go gage can't screw in work piece screw hole that awaits measuring inside, explains that the screw thread precision is qualified. And judging whether the thread depth is qualified or not based on the upper end surface of the guide sleeve and the height of the upper end surface of the guide sleeve. The device has simple structure and convenient use.
Description
Technical Field
The utility model belongs to the technical field of measuring tools and checking tools, and relates to a depth thread gauge.
Background
The traditional method for detecting the internal thread at present is to detect by matching a depth gauge with a thread plug gauge. This detection method has 3 disadvantages: the measurement is inconvenient; the measurement result cannot be directly obtained, and calculation is needed; the shank of the thread plug gauge is often larger than the thread portion, and when the thread is deeper, the plug gauge cannot be screwed to the bottom of the thread, and the method cannot measure the depth. The improvement scheme in the existing factory: combine steel wire thread insert with internal thread plug gauge and scale structure, design steel wire thread insert and examine utensil with the internal thread degree of depth: the plug gauge can measure the screw thread, and the scale part can directly read and measure the depth. Such thread depth gauges are versatile, but have drawbacks: reading by workers, and judging whether the products are qualified or not; the detection time is long, and the detection efficiency is low.
SUMMERY OF THE UTILITY MODEL
In order to overcome the defects that the thread depth gauge needs manual reading and is low in detection efficiency in the prior art, the utility model aims to provide a depth thread gauge.
In order to achieve the purpose, the utility model adopts the following technical scheme to realize the purpose:
a depth thread gauge comprises a thread no-go gauge, a handle and a thread go gauge;
one end of the handle is connected with the thread no-go gauge, and the other end of the handle is connected with the thread go-gauge; the handle, the thread no-go gauge and the thread go gauge are coaxial;
a guide sleeve is arranged between the thread go gauge and the handle;
when the device works, the thread go gauge is positioned in the external workpiece threaded hole to be measured, and the lower end of the guide sleeve is contacted with the surface of the workpiece.
Preferably, a screw is arranged between the thread go gauge and the guide sleeve, and the guide sleeve is fixed through the screw.
Preferably, the guide sleeve comprises a first upper end surface and a second upper end surface, and the first upper end surface and the second upper end surface are respectively positioned on the side wall of the thread go gauge;
the first upper end surface and the second upper end surface are not on the same horizontal plane, and the height of the first upper end surface is higher than that of the second upper end surface.
Preferably, when the thread depth is qualified, the upper end face of the thread go gauge is positioned between the first upper end face and the second upper end face.
Preferably, when the thread depth is too deep, the upper end face of the thread go gauge is lower than the second upper end face.
Preferably, when the thread depth is too shallow, the upper end face of the thread go gauge is higher than the first upper end face.
Preferably, the thread no-go gauge and the thread go gauge are calculated by the national standard GB/T3934-2003 or the standard HB 4273.
Preferably, the guide sleeve is in clearance fit with a thread gauge H7/g 6.
Compared with the prior art, the utility model has the following beneficial effects:
the utility model discloses a depth thread gauge.A handle is connected with a thread no-go gauge at one end and connected with a thread go-gauge at the other end; the handle, the thread no-go gauge and the thread go gauge are coaxial; the utility model combines a thread plug gauge and a depth go-no go gauge, designs a thread gauge with depth: the thread plug gauge portion may be used to measure thread size and the pass-through portion may be used to measure depth size. During the screw thread precision measurement, screw thread lead to inside rule and the screw thread no-go gage screw in work piece screw hole that awaits measuring respectively, if the screw thread leads to the rule can the screw in, the screw thread no-go gage can't screw in work piece screw hole that awaits measuring inside, explains that the screw thread precision is qualified. And judging whether the thread depth is qualified or not based on the upper end surface of the guide sleeve and the height of the upper end surface of the guide sleeve. The device has simple structure and convenient use.
Drawings
FIG. 1 is a schematic structural view of the present invention;
wherein: 1-a thread no-go gauge; 2-a handle; 3-guide sleeve; 4-screws; 5-thread go gauge.
Detailed Description
In order to make the technical solutions of the present invention better understood, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover non-exclusive inclusions, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.
The utility model is described in further detail below with reference to the accompanying drawings:
example 1
Referring to fig. 1, a depth thread gauge comprises a thread no-go gauge 1, a handle 2 and a thread go gauge 5;
one end of the handle 2 is connected with the thread no-go gauge 1, and the other end is connected with the thread go gauge 5; the handle 2, the thread no-go gauge 1 and the thread go gauge 5 are coaxial; a guide sleeve 4 is arranged between the thread go gauge 5 and the handle 2; when the device works, the thread go gauge 5 is positioned in an externally-connected threaded hole to be detected of a workpiece, and the lower end of the guide sleeve 4 is in contact with the surface of the workpiece.
Example 2
The contents are the same as those of example 1 except for the following.
The guide sleeve 4 comprises a first upper end surface 41 and a second upper end surface 42, and the first upper end surface 41 and the second upper end surface 42 are respectively positioned on the side wall of the thread go-gauge 5; the first upper end surface 41 and the second upper end surface 42 are not on the same horizontal plane, and the height of the first upper end surface 41 is higher than that of the second upper end surface 42.
Example 3
The contents are the same as those of example 1 except for the following.
A screw 3 is arranged between the thread go gauge 5 and the guide sleeve 4, and the guide sleeve 4 is fixed through the screw 3.
The working principle of the utility model is as follows:
the device is used for carrying out two-aspect measurement: thread precision dimensions and thread depth dimensions.
And (3) measuring the thread precision size: respectively screwing the thread go gauge 5 and the thread no-go gauge 1 into a threaded hole to be tested of the workpiece, and if the thread go gauge 5 can be screwed in, the thread no-go gauge 1 cannot be screwed into the threaded hole to be tested of the workpiece, so that the thread precision is qualified;
measuring the depth of the thread: at first lead to inside 5 screw in work pieces screw holes that await measuring of rule, until 4 lower extremes of guide pin bushing and workpiece surface contact, the rule can't continue the screw in is led to the screw, observes the up end that the rule 5 is led to the screw this moment: (1) if the upper end surface of the thread go-gauge 5 is positioned between the first upper end surface 41 and the second upper end surface 42 of the two upper end surfaces of the guide sleeve 4, the depth dimension of the thread is qualified; (2) if the upper end face of the thread go-gauge 5 is lower than the second upper end face 42 of the guide sleeve 4, the thread depth is too deep and unqualified; (3) if the upper end surface of the thread go-gauge 5 is higher than the first upper end surface 41 of the guide sleeve 4, the thread depth is too shallow, and the thread is unqualified.
The guide sleeve 4 is in clearance fit with a thread go gauge 5H7/g6, and the thread no-go gauge 1 and the thread go gauge 5 are obtained by calculation according to the national standard GB/T3934-2003 or the standard HB 4273.
The above-mentioned contents are only for illustrating the technical idea of the present invention, and the protection scope of the present invention is not limited thereby, and any modification made on the basis of the technical idea of the present invention falls within the protection scope of the claims of the present invention.
Claims (8)
1. A depth thread gauge is characterized by comprising a thread no-go gauge (1), a handle (2) and a thread go gauge (5);
one end of the handle (2) is connected with the thread no-go gauge (1), and the other end is connected with the thread go gauge (5); the handle (2), the thread no-go gauge (1) and the thread go gauge (5) are coaxial;
a guide sleeve (4) is arranged between the thread go gauge (5) and the handle (2);
when the device works, the thread go gauge (5) is positioned in an externally-connected threaded hole to be detected of a workpiece, and the lower end of the guide sleeve (4) is contacted with the surface of the workpiece.
2. Depth thread gauge according to claim 1, characterized in that a screw (3) is provided between the thread gauge (5) and the guide sleeve (4) is fixed by the screw (3).
3. Depth thread gauge according to claim 1, characterized in that the guide sleeve (4) comprises a first upper end face (41) and a second upper end face (42), the first upper end face (41) and the second upper end face (42) being located respectively on the side walls of the thread go gauge (5);
the first upper end surface (41) and the second upper end surface (42) are not on the same horizontal plane, and the height of the first upper end surface (41) is higher than that of the second upper end surface (42).
4. A deep thread gauge according to claim 3, characterized in that the upper end surface of the thread go gauge (5) is located between the first upper end surface (41) and the second upper end surface (42) when the thread depth is acceptable.
5. A deep thread gauge according to claim 3, characterized in that the upper end surface of the thread go gauge (5) is lower than the second upper end surface (42) when the thread depth is too deep.
6. A deep thread gauge according to claim 3, characterized in that the upper end face of the thread go gauge (5) is higher than the first upper end face (41) when the thread depth is too shallow.
7. Deep thread gauge according to claim 1, characterized in that the thread no-go gauge (1) and the thread go-gauge (5) are calculated according to the national standard GB/T3934-2003 or the standard HB 4273.
8. Depth thread gauge according to claim 1, characterized in that the guide sleeve (4) is clearance-fitted with the thread go gauge (5) H7/g 6.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122263927.2U CN216159796U (en) | 2021-09-17 | 2021-09-17 | Depth thread gauge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122263927.2U CN216159796U (en) | 2021-09-17 | 2021-09-17 | Depth thread gauge |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216159796U true CN216159796U (en) | 2022-04-01 |
Family
ID=80851792
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122263927.2U Active CN216159796U (en) | 2021-09-17 | 2021-09-17 | Depth thread gauge |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216159796U (en) |
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2021
- 2021-09-17 CN CN202122263927.2U patent/CN216159796U/en active Active
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