CN219914267U - Annular workpiece measuring tool - Google Patents
Annular workpiece measuring tool Download PDFInfo
- Publication number
- CN219914267U CN219914267U CN202321271137.1U CN202321271137U CN219914267U CN 219914267 U CN219914267 U CN 219914267U CN 202321271137 U CN202321271137 U CN 202321271137U CN 219914267 U CN219914267 U CN 219914267U
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- measuring
- annular workpiece
- ruler
- scale
- cross beam
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- 238000005259 measurement Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
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- Length-Measuring Instruments Using Mechanical Means (AREA)
Abstract
The utility model discloses an annular workpiece measuring tool, which comprises a measuring ruler and a positioning seat, wherein the positioning seat comprises a cross beam, two ends of the cross beam are provided with a lapping rod, the lower end of the lapping rod is provided with an inner top foot matched with the inner wall of an annular workpiece and an outer top foot matched with the outer side wall of the annular workpiece, the upper end of the cross beam is provided with a guide sleeve, the measuring ruler is in sliding fit with the guide sleeve, one side of the measuring ruler is positioned on a middle vertical line of the cross beam, one end of the measuring ruler is provided with a top head in contact fit with the inner wall of the annular workpiece, the side wall of the top head is connected with a top rod in contact fit with the outer side wall of the annular workpiece, the top rod is positioned below the cross beam, the upper end surface of the measuring ruler is provided with an inner scale and an outer scale, the O scale line of the outer scale is flush with the end of the top rod; the inner top pin and the outer top pin are utilized for positioning, so that the accuracy of the measuring position of the measuring ruler is ensured, and the measuring precision is improved.
Description
Technical Field
The utility model relates to the technical field of measuring tools, in particular to an annular workpiece measuring tool.
Background
The workpiece is often required to be measured in the machining and manufacturing process, and the annular workpiece is mainly measured in the inner diameter and the outer diameter.
The existing measuring tool for the inner diameter or the outer diameter mainly adopts a measuring method for positioning two ends, such as a large-size inner diameter detecting device disclosed in patent CN104976941A and a large-diameter outer diameter measuring device disclosed in patent CN215725601U, when the measuring tool is used, the measuring tool is measured by manually adjusting the measuring heads at the two ends to be in contact with the inner diameter or the outer diameter, the distance between the two measuring heads cannot be ensured to be the inner diameter or the outer diameter of a workpiece in the mode, and the measuring error is large.
Disclosure of Invention
The utility model aims at the defects in the prior art, and provides an annular workpiece measuring tool, which ensures the accuracy of the measuring position of a measuring ruler by utilizing the theorem that the perpendicular bisector of any two point connecting lines on a circle passes through the center of a circle and positioning through an inner top pin and an outer top pin, thereby improving the measuring precision; the device is simple and quick to use, simple and convenient to measure, and can measure the inner diameter and the outer diameter.
In order to achieve the above purpose, the present utility model provides the following technical solutions:
the utility model provides an annular work piece measuring tool, includes dipperstick and positioning seat, the positioning seat includes the crossbeam, the both ends of crossbeam are equipped with the pole of taking, the lower extreme of taking the pole be equipped with annular work piece inner wall complex interior top foot and with annular work piece lateral wall complex outer top foot, the upper end of crossbeam is equipped with the uide bushing, dipperstick and uide bushing sliding fit, one side of dipperstick is located the well vertical line of crossbeam, and the one end of dipperstick is equipped with the top with annular work piece inner wall contact complex, be connected with on the lateral wall of top with annular work piece lateral wall contact complex ejector pin, the ejector pin is located the below of crossbeam, and the up end of dipperstick is equipped with interior scale and outer scale, the "O" scale mark of outer scale and the tip parallel and level of ejector pin, interior scale "O" scale mark and the tip parallel and level of ejector pin.
Preferably, a handle is arranged at the upper end of the measuring ruler.
Preferably, one end of the measuring ruler, which is far away from the top, is inserted with an extension ruler, and the end part of the extension ruler is provided with a pull ring.
Preferably, a first bolt for fixing the extension rule is arranged on the side wall of the measuring rule.
Preferably, a second bolt for fixing the measuring ruler is arranged on the side wall of the guide sleeve.
Preferably, the end of the second bolt is provided with a resistance block which is contacted with the measuring ruler.
Preferably, the graduation values of the outer graduation and the inner graduation are 1mm.
Compared with the prior art, the utility model has the beneficial effects that:
1. the utility model uses the theorem that the perpendicular bisectors of any two points on the circle are required to cross the circle center, and positions the measuring ruler by the inner and outer top feet, so as to ensure the accuracy of the measuring position of the measuring ruler, thereby improving the measuring precision; the device is simple and quick to use, simple and convenient to measure, and can measure the inner diameter and the outer diameter.
2. The utility model is provided with the extension ruler, increases the measuring range and has universality in use.
3. The second bolt is arranged to increase the sliding resistance of the measuring ruler, so that the sliding of the positioning seat during measurement is prevented, and the convenience of use is improved.
Drawings
FIG. 1 is a schematic diagram of the structure of the present utility model;
FIG. 2 is a schematic structural view of the measuring scale;
FIG. 3 is a schematic view of a positioning seat;
FIG. 4 is a schematic view of the structure of the present utility model when measuring the outer diameter;
FIG. 5 is a schematic view of the structure of the present utility model when measuring the inner diameter.
In the figure: 1-a measuring ruler; 101-inner scale; 102-outer scale; 103-handle; 104-a first bolt; 105-extension rule; 106-a pull ring; 107-plug; 108-ejector rod; 2-positioning seats; 201-a cross beam; 202-a second bolt; 203, a guide sleeve; 204-lapping the rod; 205-outer pins; 206-inner pins.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
As shown in fig. 1, an annular workpiece measuring tool comprises a measuring scale 1 and a positioning seat 2, as shown in fig. 3, the positioning seat 2 comprises a cross beam 201, two ends of the cross beam 201 are provided with a lapping rod 204, the lower end of the lapping rod 204 is provided with an inner top 206 matched with the inner wall of an annular workpiece and an outer top 205 matched with the outer side wall of the annular workpiece, the upper end of the cross beam 201 is provided with a guide sleeve 203, the measuring scale 1 is in sliding fit with the guide sleeve 203, one side of the measuring scale 1 is positioned on a midwife of the cross beam 201, the side is used for size measurement, as shown in fig. 2, one end of the measuring scale 1 is provided with a top 107 contacted and matched with the inner wall of the annular workpiece, the side wall of the top 107 is connected with a top 108 contacted and matched with the outer side wall of the annular workpiece, the top 107 and the end of the top 108 are triangular tips, the top 107 and the middle vertical lines of the cross beam 201 correspond to the upper position and the lower position of the cross beam 201, the top 108 is positioned below the cross beam 201, the upper end surface of the measuring scale 1 is provided with an inner 101 and an outer scale 102, the O scale 102 is flush with the end of the top 107, and the O scale 108 of the inner scale 101 is flush with the end of the top 101 and the inner scale 102 is equal to the scale 101 mm.
As shown in fig. 5, when measuring the inner diameter of the annular workpiece, the positioning seat 2 is placed in the annular workpiece, the rod 204 is put on the upper end of the annular workpiece, the two inner pins 206 are pushed against the inner wall of the annular workpiece, the measuring scale 1 is slid, the plug 107 is pushed against the inner wall of the annular workpiece, and the inner diameter of the annular workpiece is measured by the outer scale 102.
As shown in fig. 4, when measuring the outer diameter of the annular workpiece, the positioning seat 2 is placed on the outer side of the annular workpiece, the lapping rod 204 is lapped on the upper end of the annular workpiece, the two outer jacking feet 205 are jacked on the outer side wall of the annular workpiece, the measuring scale 1 is slid, the jacking rod 108 is jacked on the outer side wall of the annular workpiece, and the outer diameter of the annular workpiece is measured through the inner scale 101.
The side wall end of the measuring ruler 1 is positioned on the middles of the two inner top pins 206 and the two outer top pins 205, and the accuracy of the measuring position of the measuring ruler 1 is ensured by utilizing the theorem that the middles of any two points on a circle are crossed by the circle center.
The upper end of the measuring ruler 1 is provided with the handle 103, the use is convenient, one end of the measuring ruler 1 far away from the top head 107 is inserted with the extension ruler 105, the end part of the extension ruler 105 is provided with the pull ring 106, and the measuring range is increased through the extension ruler 105.
The side wall of the measuring scale 1 is provided with a first bolt 104 for fixing an extension scale 105.
The second bolt 202 for fixing the measuring ruler 1 is arranged on the side wall of the guide sleeve 203, the resistance block which is in contact with the measuring ruler 1 is arranged at the end part of the second bolt 202, and is made of rubber, so that a certain resistance can be generated for sliding of the measuring ruler 1, and sliding between the positioning block and the measuring ruler 1 is facilitated.
It will be apparent to those skilled in the art that various modifications and variations can be made to the present utility model without departing from the spirit or scope of the utility model. Thus, it is intended that the present utility model also include such modifications and alterations insofar as they come within the scope of the appended claims or the equivalents thereof.
Claims (7)
1. The utility model provides an annular work piece measuring tool, includes dipperstick and positioning seat, its characterized in that: the positioning seat comprises a cross beam, the two ends of the cross beam are provided with a lapping rod, the lower end of the lapping rod is provided with an inner top pin matched with the inner wall of the annular workpiece and an outer top pin matched with the outer side wall of the annular workpiece, the upper end of the cross beam is provided with a guide sleeve, a measuring ruler and the guide sleeve are in sliding fit, one side of the measuring ruler is positioned on a middle vertical line of the cross beam, one end of the measuring ruler is provided with a top head matched with the inner wall of the annular workpiece in a contact manner, the side wall of the top head is connected with a top rod matched with the outer side wall of the annular workpiece in a contact manner, the top rod is positioned below the cross beam, the upper end face of the measuring ruler is provided with an inner scale and an outer scale, the O scale line of the outer scale is flush with the end of the top rod, and the O scale line of the inner scale is flush with the end of the top rod.
2. An annular workpiece measuring tool as defined in claim 1, wherein: the upper end of the measuring ruler is provided with a handle.
3. An annular workpiece measuring tool as defined in claim 1, wherein: the end of the measuring ruler, which is far away from the top, is inserted with an extension ruler, and the end part of the extension ruler is provided with a pull ring.
4. A ring-shaped workpiece measuring tool as defined in claim 3, wherein: the side wall of the measuring ruler is provided with a first bolt for fixing the extension ruler.
5. An annular workpiece measuring tool as defined in claim 1, wherein: and a second bolt for fixing the measuring ruler is arranged on the side wall of the guide sleeve.
6. An annular workpiece measuring tool as defined in claim 5, wherein: and a resistance block contacted with the measuring ruler is arranged at the end part of the second bolt.
7. An annular workpiece measuring tool as defined in claim 1, wherein: the graduation values of the outer graduation and the inner graduation are 1mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321271137.1U CN219914267U (en) | 2023-05-23 | 2023-05-23 | Annular workpiece measuring tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321271137.1U CN219914267U (en) | 2023-05-23 | 2023-05-23 | Annular workpiece measuring tool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219914267U true CN219914267U (en) | 2023-10-27 |
Family
ID=88464811
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321271137.1U Active CN219914267U (en) | 2023-05-23 | 2023-05-23 | Annular workpiece measuring tool |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219914267U (en) |
-
2023
- 2023-05-23 CN CN202321271137.1U patent/CN219914267U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: A tool for measuring circular workpieces Effective date of registration: 20231221 Granted publication date: 20231027 Pledgee: Jinan Zhangqiu District Sub branch of Postal Savings Bank of China Co.,Ltd. Pledgor: Shandong Dajin Forging Co.,Ltd. Registration number: Y2023980073184 |