CN211291279U - Deep hole bottom shallow spigot diameter measuring tool - Google Patents
Deep hole bottom shallow spigot diameter measuring tool Download PDFInfo
- Publication number
- CN211291279U CN211291279U CN201921645769.3U CN201921645769U CN211291279U CN 211291279 U CN211291279 U CN 211291279U CN 201921645769 U CN201921645769 U CN 201921645769U CN 211291279 U CN211291279 U CN 211291279U
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- measuring
- deep hole
- shallow
- tool
- diameter
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Abstract
The utility model discloses a shallow tang diameter measuring tool in deep hole bottom, this shallow tang diameter measuring tool in deep hole bottom, include: one side of each of two ends of the cross rod is provided with a first notch; the two measuring heads are respectively arranged at two ends of the cross rod, one sides of the two measuring heads are respectively provided with a second gap, and one ends of the two measuring heads are respectively provided with a contact; the handle is arranged on the other side of the cross rod and is perpendicular to the cross rod. The utility model discloses a shallow tang diameter measuring tool in deep hole bottom has solved when measuring shallow tang diameter, and unable accurate number of degrees and smooth feeler gauge receive shallow tang circularity error influence easily to lead to the problem of erroneous judgement after the micrometer stretches into downthehole, and this instrument simple structure and easy operation have improved measurement of efficiency and measuring accuracy greatly in addition when guaranteeing better practicality.
Description
Technical Field
The utility model relates to a machining measures technical field, especially relates to a shallow tang diameter measurement instrument in deep hole bottom.
Background
At present, when measuring a shallow spigot obtained by machining, an internal diameter gauge, a micrometer or a smooth plug gauge is generally used for measurement, but the machining precision of the shallow spigot of some mechanical parts is high, and the shallow spigot is far away from an orifice of a shaft hole, so that the required precision cannot be achieved by the conventional measuring methods, such as: if the inner diameter gauge is used for measurement, the measuring head of the gauge can only measure the position of the mouth part of the spigot, and the obtained data is unreliable; if a micrometer is used for measurement, due to the size of the shallow seam allowance, a hand cannot stretch into the micrometer and cannot clearly see data, and only the size of the position of the seam allowance can be measured, so that the measured data is inaccurate; when a smooth plug gauge is used for measurement, the smooth plug gauge is easily affected by the roundness of a spigot, so that misjudgment is caused.
Disclosure of Invention
Aiming at the problems of the existing shallow spigot diameter measuring method, the deep hole bottom shallow spigot diameter measuring tool is provided, the requirement of multi-point measurement of the same section can be met, and the deep hole bottom shallow spigot diameter measuring tool has the advantages of high precision, high efficiency and the like.
The specific technical scheme is as follows:
a deep hole bottom shallow spigot diameter measuring tool comprising:
the measuring rod is provided with steps on the peripheral walls of two ends, each step is provided with a first step surface and a second step surface, the first step surfaces are arranged along the axial direction of the measuring rod, the second step surfaces are arranged along the radial direction of the measuring rod, the first step surfaces and the second step surfaces are arranged vertically, the two first step surfaces on the measuring rod are positioned on the same first plane, and the two second step surfaces on the measuring rod are arranged in parallel;
the handle is fixedly connected with the middle of the measuring rod, and the handle is positioned on one side, far away from the step, of the measuring rod.
The tool for measuring the diameter of the shallow spigot at the bottom of the deep hole is characterized in that the central axis of the handle is perpendicular to the central axis of the measuring rod.
The deep hole bottom shallow spigot diameter measuring tool comprises: the measuring head is respectively arranged at two ends of the cross rod, one end of the cross rod is provided with one step on the peripheral wall of the measuring head, the other end of the cross rod is provided with another step on the peripheral wall of the measuring head, and the handle is fixedly connected with the middle part of the cross rod.
The tool for measuring the diameter of the shallow spigot at the bottom of the deep hole is characterized in that two measuring heads are respectively provided with a contact at one end far away from the cross rod.
In the tool for measuring the diameter of the shallow spigot at the bottom of the deep hole, the peripheral walls at the two ends of the cross rod are respectively provided with the first notch, the peripheral walls of the two measuring heads are respectively provided with the second notches, one of the first notch and one of the second notches form one step, and the other of the first notch and the other of the second notches form the other step.
The tool for measuring the diameter of the shallow spigot at the bottom of the deep hole is characterized in that each first notch is provided with a first notch surface and a second step surface, the first notch surface and the second step surface are vertically arranged, each second notch is provided with a second notch surface, and the two first notch surfaces and the two second notch surfaces are both located on the first plane.
In the tool for measuring the diameter of the shallow spigot at the bottom of the deep hole, the two contacts are respectively welded with the two measuring heads.
In the tool for measuring the diameter of the shallow spigot at the bottom of the deep hole, the raw materials of the two contacts are both made of hard alloy, and the raw materials of the handle and the two measuring heads are both made of 45# round steel.
In the tool for measuring the diameter of the shallow spigot at the bottom of the deep hole, the two measuring heads are symmetrically arranged on two sides of the handle, and the two contacts are symmetrically arranged on two sides of the handle.
In the tool for measuring the diameter of the shallow spigot at the bottom of the deep hole, one first notch is communicated with one second notch, and the other first notch is communicated with the other second notch.
Compared with the prior art, the technical scheme has the positive effects that:
(1) the utility model discloses a shallow tang diameter measuring tool in deep hole bottom has solved smooth feeler gauge and has had the problem that the circularity error leads to the erroneous judgement easily by the part of being surveyed, improves measuring accuracy greatly.
(2) The utility model discloses a shallow tang diameter measuring tool in deep hole bottom can accomplish at the multiple spot measurement of the same cross-section of survey part, and the measurement accuracy of shallow tang is showing and is promoting.
(3) The utility model discloses a shallow tang diameter measuring tool in deep hole bottom still has advantages such as measurement of efficiency height, simple structure, convenient to use and practicality are strong.
Drawings
Fig. 1 is an overall structure view of the measuring tool for the diameter of the shallow spigot at the bottom of the deep hole of the utility model.
In the drawings: 1. a measuring rod; 11. a first step surface; 12. a second step surface; 111. a first notched surface; 112 second notch face; 2. a cross bar; 3. a measuring head; 31. a contact; 4. a handle.
Detailed Description
The present invention will be further described with reference to the accompanying drawings and specific embodiments, but the present invention is not limited thereto.
Fig. 1 is the utility model discloses a shallow tang diameter measuring tool's of deep hole bottom overall structure view shows a shallow tang diameter measuring tool in deep hole bottom of preferred embodiment, wherein including measuring stick 1, handle 4, all be equipped with the step on the perisporium at measuring stick 1's both ends, each step all has first step face 11 and second step face 12, first step face 11 sets up along the axial of measuring stick 1, second step face 12 is along measuring stick 1's radial setting, first step face 11 is perpendicular setting with second step face 12, and measure two first step faces 11 on stick 1 and locate on same first plane, two second step faces 12 on measuring stick 1 are parallel arrangement, handle 4 and the middle part fixed connection of measuring stick 1, handle 4 is located and measures stick 1 and keeps away from one side of step. Preferably, the step face is made at measurement stick both ends for avoid the bottom of tang, make the measuring head can measure the diameter of tang middle part position, this shallow tang diameter measuring tool in deep hole bottom can operate outside the hole through handle 4, avoid need stretch into the inconvenient operation in the hole with the hand when measuring.
In a preferred embodiment, the central axis of the handle 4 is perpendicular to the central axis of the measuring stick 1.
Further, as a preferred embodiment, the measuring stick 1 includes: a horizontal pole 2 and two measuring heads 3, two measuring heads 3 locate the both ends of horizontal pole 2 respectively, are equipped with a step on the perisporium of the one end of horizontal pole 2 and one measuring head 3, are equipped with another step on the perisporium of the other end of horizontal pole 2 and another measuring head 3, the middle part fixed connection of handle 4 and horizontal pole 2.
Furthermore, in a preferred embodiment, the ends of the two measuring heads 3 remote from the cross bar 2 are provided with contacts 31. Preferably, since the contact 31 is a point contact, a plurality of points can be detected on the same cross section, and the detection accuracy is higher.
Furthermore, as a preferred embodiment, the peripheral walls of the two ends of the cross bar 2 are provided with first notches, the peripheral walls of the two measuring heads 3 are provided with second notches, respectively, one first notch and one second notch form the one step, and the other first notch and the other second notch form the other step.
Still further, as a preferred embodiment, each first notch has a first notch surface 111 and a second step surface 112, the first notch surface 111 and the second step surface 112 are vertically disposed, each second notch has a second notch surface 112, and the two first notch surfaces 111 and the two second notch surfaces 112 are located on the first plane.
In a preferred embodiment, the two contacts 31 are welded to the two measuring heads 3, respectively.
In a preferred embodiment, the material of each contact 31 is cemented carbide, and the material of each handle 4 and each measuring head 3 is 45# round steel. Preferably, the cemented carbide improves the wear resistance of the contact 31, ensuring its stability when measuring dimensions.
In addition, as a preferred embodiment, the two measuring heads 3 are symmetrically disposed on both sides of the handle 4, and the two contacts 31 are symmetrically disposed on both sides of the handle 4.
In addition, as a preferred embodiment, one first gap is communicated with one second gap, and the other first gap is communicated with the other second gap.
The utility model discloses a shallow tang diameter measuring tool in deep hole bottom holds the handle when using, makes the step face of horizontal pole and the bottom surface of shallow tang be parallel arrangement, and the diameter of going through rule and no-go gage to the shallow tang is measured respectively to the subdividing.
The utility model discloses a shallow tang diameter measuring tool in deep hole bottom can be as required when using, according to 90 distribution measuring diameter's 2 points in shallow tang on same cross-section, perhaps according to 45 distribution measuring diameter's 4 points.
The utility model discloses a shallow tang diameter measuring tool in deep hole bottom has solved smooth feeler gauge and has had the problem that the circularity error leads to the erroneous judgement easily by the part of being surveyed, improves measuring accuracy greatly.
The utility model discloses a shallow tang diameter measuring tool in deep hole bottom can accomplish at the multiple spot measurement of the same cross-section of survey part, and the measurement accuracy of shallow tang is showing and is promoting.
The utility model discloses a shallow tang diameter measuring tool in deep hole bottom still has advantages such as measurement of efficiency height, simple structure, convenient to use and practicality are strong.
The above description is only an example of the preferred embodiment of the present invention, and not intended to limit the scope of the present invention, and those skilled in the art should be able to realize the equivalent alternatives and obvious variations of the present invention.
Claims (10)
1. A deep hole bottom shallow spigot diameter measuring tool is characterized by comprising:
the measuring rod is provided with steps on the peripheral walls of two ends, each step is provided with a first step surface and a second step surface, the first step surfaces are arranged along the axial direction of the measuring rod, the second step surfaces are arranged along the radial direction of the measuring rod, the first step surfaces and the second step surfaces are arranged vertically, the two first step surfaces on the measuring rod are positioned on the same first plane, and the two second step surfaces on the measuring rod are arranged in parallel;
the handle is fixedly connected with the middle of the measuring rod, and the handle is positioned on one side, far away from the step, of the measuring rod.
2. The deep hole bottom shallow spigot diameter measuring tool of claim 1 wherein the central axis of said handle is disposed perpendicular to the central axis of said gauging bar.
3. The deep hole bottom shallow spigot diameter measuring tool of claim 2 wherein said measuring bar comprises: the measuring head is respectively arranged at two ends of the cross rod, one end of the cross rod is provided with one step on the peripheral wall of the measuring head, the other end of the cross rod is provided with another step on the peripheral wall of the measuring head, and the handle is fixedly connected with the middle part of the cross rod.
4. The tool for measuring the diameter of the shallow spigot at the bottom of the deep hole as claimed in claim 3, wherein the measuring heads are provided with contact tips at ends thereof which are far away from the cross rod.
5. The tool for measuring the diameter of the shallow spigot at the bottom of the deep hole as claimed in claim 3, wherein the cross bar is provided with first notches on the peripheral walls of both ends, and the measuring heads are provided with second notches on the peripheral walls thereof, respectively, one of the first notches and one of the second notches form one of the steps, and the other of the first notches and the other of the second notches form the other of the steps.
6. The deep hole bottom shallow spigot diameter measuring tool of claim 5, wherein each said first notch has a first notch face and said second step face, said first notch face being disposed perpendicular to said second step face, each said second notch has a second notch face, and both said first notch faces and both said second notch faces are disposed on said first plane.
7. The tool for measuring the diameter of the shallow spigot at the bottom of the deep hole as claimed in claim 4, wherein the two contacts are welded to the two measuring heads respectively.
8. The tool for measuring the diameter of the shallow spigot at the bottom of the deep hole as claimed in claim 4, wherein the raw materials of the two contacts are made of hard alloy, and the raw materials of the handle and the two measuring heads are made of 45# round steel.
9. The tool for measuring the diameter of the shallow spigot at the bottom of the deep hole as claimed in claim 4, wherein the two measuring heads are symmetrically arranged on two sides of the handle, and the two contacts are symmetrically arranged on two sides of the handle.
10. The deep hole bottom shallow spigot diameter measuring tool of claim 5 wherein one of said first notches is in communication with one of said second notches and the other of said first notches is in communication with the other of said second notches.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921645769.3U CN211291279U (en) | 2019-09-29 | 2019-09-29 | Deep hole bottom shallow spigot diameter measuring tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921645769.3U CN211291279U (en) | 2019-09-29 | 2019-09-29 | Deep hole bottom shallow spigot diameter measuring tool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211291279U true CN211291279U (en) | 2020-08-18 |
Family
ID=72021854
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921645769.3U Expired - Fee Related CN211291279U (en) | 2019-09-29 | 2019-09-29 | Deep hole bottom shallow spigot diameter measuring tool |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211291279U (en) |
-
2019
- 2019-09-29 CN CN201921645769.3U patent/CN211291279U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200818 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |