CN215639250U - Flatness measuring device - Google Patents
Flatness measuring device Download PDFInfo
- Publication number
- CN215639250U CN215639250U CN202122081408.4U CN202122081408U CN215639250U CN 215639250 U CN215639250 U CN 215639250U CN 202122081408 U CN202122081408 U CN 202122081408U CN 215639250 U CN215639250 U CN 215639250U
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- hole
- measuring
- measuring table
- connecting piece
- dial indicator
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- 238000005259 measurement Methods 0.000 claims abstract description 23
- 230000000149 penetrating effect Effects 0.000 claims abstract description 8
- 239000010438 granite Substances 0.000 claims description 4
- 238000000034 method Methods 0.000 description 7
- 238000000691 measurement method Methods 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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- A Measuring Device Byusing Mechanical Method (AREA)
Abstract
The utility model discloses a flatness measuring device, comprising: the measuring table comprises a first side and a second side which are opposite, and a first through hole which is communicated with the first side and the second side is formed in the measuring table; the connecting piece is provided with a second through hole in a penetrating mode along the axial direction of the connecting piece, and one end of the connecting piece is embedded into the first through hole from the first side of the measuring table, so that the second through hole is communicated with the first through hole; the dial indicator penetrates through the second through hole and can move along the extending direction of the second through hole, and during measurement, a measuring head of the dial indicator penetrates through the first through hole and then is located on the second side of the measuring table. The measuring device is simple in structure, convenient to use and capable of improving the measuring efficiency.
Description
Technical Field
The utility model relates to the field of measurement, in particular to a flatness measuring device.
Background
Flatness is one of form and position tolerances, and refers to the deviation of the height of a macro-relief on the surface of an object from an ideal plane. The flatness error is obtained by comparing the measured actual surface with the ideal surface, and the line value distance between the measured actual surface and the ideal surface is the flatness error value; or by measuring the relative height difference of a plurality of points on the actual surface and then converting the flatness error value represented by a line value. In the conventional detection method, the measurement of the flatness is generally as follows: feeler gauge measurement, laser planar interferometer measurement, level gauge measurement, and tabulation measurement. The feeler gauge is mainly used for measuring the gap distance, and can only carry out rough measurement on the measurement of the planeness. Laser planar interferometer measurements are mainly used for measuring smooth facets. The level gauge measurement method is mainly used for measuring an inclination angle relative to a horizontal position, the flatness and straightness of a guide rail of machine tool equipment, the horizontal position and the vertical position of equipment installation and the like. The method is to place the measured part and the micrometer on a standard measuring table, take the standard measuring table as the measuring reference surface, and measure the part point by point or along several straight lines by the micrometer along the actual surface. When the flatness of a small workpiece is measured by a dial measurement method, the workpiece has the problems of difficult clamping, inaccurate positioning and the like due to small size, and the measurement efficiency is seriously influenced.
Disclosure of Invention
In order to overcome the defects in the prior art, the embodiment of the utility model provides the flatness measuring device which is simple in structure, convenient to use and capable of improving the measuring efficiency.
In order to achieve the purpose, the utility model adopts the technical scheme that: a flatness measuring apparatus comprising:
the measuring table comprises a first side and a second side which are opposite, and a first through hole which is communicated with the first side and the second side is formed in the measuring table;
the connecting piece is provided with a second through hole in a penetrating mode along the axial direction of the connecting piece, and one end of the connecting piece is embedded into the first through hole from the first side of the measuring table, so that the second through hole is communicated with the first through hole;
and the dial indicator penetrates through the second through hole, and a measuring head of the dial indicator penetrates through the first through hole and then is positioned on the second side of the measuring table.
In the technical scheme, a third hole is formed in the radial direction of the connecting piece and communicated with the second through hole, a set screw penetrates through the third hole, and one end, facing the second through hole, of the set screw abuts against the measuring rod of the dial indicator, so that the dial indicator is fixed in the connecting piece.
In the technical scheme, the dial indicator is connected with a second display through a data line, and the second display is used for synchronously displaying the measurement data on the dial indicator.
In the above technical scheme, the side wall of the connecting piece is provided with a step surface, and the step surface is abutted against the first side of the measuring table.
In the above technical scheme, a limiting part is arranged in the first through hole, and the limiting part abuts against the end part of the connecting piece.
In the technical scheme, the measuring table is made of granite, and the flatness of the second side of the measuring table meets the national standard 00-level requirement.
In the above technical scheme, the measuring table is horizontally arranged, the first side and the second side are arranged along the vertical direction, and the second side is located above the first side.
In the technical scheme, at least three upright columns are arranged on the second side of the measuring table in parallel, and the upright columns are fixedly connected with the measuring table through screws.
Due to the application of the technical scheme, compared with the prior art, the utility model has the following advantages:
1. in the utility model, the dial indicator penetrates through the measuring table, the measuring head of the dial indicator penetrates through the first through hole and then is positioned on the second side of the measuring table, and when the dial indicator is used, the measured piece only needs to be moved on the second side of the measuring table to enable the measuring head to be in contact with the measured piece, so that the measured piece is measured, the clamping and the positioning of the measured piece are reduced in the measuring process, and the measuring efficiency is improved.
2. The amesdial runs through locate in the second through-hole, and can move along the axial direction of second through-hole, offsets through holding screw and the measuring staff of amesdial, realizes being fixed in the connecting piece with the amesdial in, this fixed mode is simple, and is convenient for adjust the position of amesdial to in the different reference surface of definite.
3. The dial indicator is connected with a second display through a data line, and the second display is used for synchronously displaying the measurement data on the dial indicator, so that the measurement personnel can conveniently read the measurement data.
In order to make the aforementioned and other objects, features and advantages of the utility model 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 the drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a flatness measuring apparatus according to an embodiment of the present invention.
Reference numerals of the above figures: 1. a measuring table; 11. a first side; 12. a second side; 13. a first through hole; 2. a connecting member; 21. a second through hole; 22. a third aperture; 23. a step surface; 3. a dial indicator; 31. a measuring head; 32. a measuring rod; 4. a column; 5. a second display; 6. a data line; 7. and (5) tightening the screw.
Detailed Description
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.
The first embodiment is as follows: referring to fig. 1, a flatness measuring apparatus includes:
the measuring table 1 comprises a first side 11 and a second side 12 which are opposite, and a first through hole 13 which communicates the first side 11 with the second side 12 is arranged in the measuring table 1;
the connecting piece 2 is provided with a second through hole 21 in a penetrating mode along the axial direction of the connecting piece 2, and one end of the connecting piece 2 is embedded into the first through hole 13 from the first side 11 of the measuring table 1, so that the second through hole 21 is communicated with the first through hole 13;
and the dial indicator 3 is arranged in the second through hole 21 in a penetrating manner, and the measuring head 31 of the dial indicator 3 is positioned on the second side 12 of the measuring table 1 after penetrating through the first through hole 13.
The dial indicator 3 is arranged on the measuring table 1 in a penetrating manner, so that the measuring head 31 of the dial indicator 3 is positioned on the second side 12 of the measuring table 1 after penetrating through the first through hole 13. In the measuring process, the dial indicator 3 is in a fixed state, and only the measured piece needs to be moved on the second side 12 of the measuring table 1, so that the measuring head 31 is in contact with the measured piece, and the measured piece is measured. In the process, clamping and positioning of the measured piece are reduced, the measured piece with a small size is difficult to clamp and inaccurate in positioning, and the measuring device can improve the measuring efficiency.
Specifically, the flatness of the second side 12 of the measuring table 1 meets the national standard 00-level requirement, and the measuring precision is ensured. The measuring table 1 can be made of granite, the granite has the characteristics of high strength, weathering resistance, corrosion resistance, abrasion resistance, low water absorption and the like, and the flatness of the surface of the measuring table 1 is ensured in the using process.
The measuring table 1 may be disposed in various directions according to measuring environments, usage habits, and the like. Preferably, the measuring table 1 is horizontally disposed, and the first side 11 and the second side 12 are disposed along a vertical direction. Further preferably, the second side 12 is located above the first side 11, so that the dial indicator 3 is arranged in the measuring table 1 in an inverted manner. During measurement, the measured workpiece only needs to move smoothly on the second side 12, and during the moving process, the dial indicator 3 can measure a plurality of measured data of the measured workpiece, so that the measurement is convenient and quick.
At least three upright columns 4 are arranged on the second side 12 of the measuring table 1 in parallel, and the upright columns 4 are fixedly connected with the measuring table 1 through screws. The measuring table 1 and the upright 4 are connected in the vertical direction, for example, using socket head cap screws. The three upright columns 4 are arranged at equal heights, so that the measuring table 1 is horizontally arranged.
Referring to fig. 1, the connecting member 2 is embedded in the measuring table 1 from a first side 11 of the measuring table 1. Specifically, the connecting member 2 is disposed perpendicular to the measuring platform, so that the measuring rod 32 of the dial indicator 3 is disposed perpendicular to the second side 12 of the measuring table 1. The connecting piece 2 can be cylindrical, and is convenient to mount with the measuring table 1.
In order to facilitate the positioning of the connecting piece 2, a step surface 23 is arranged on the side wall of the connecting piece 2, and the step surface 23 is abutted against the first side 11 of the measuring table 1. A limiting part is arranged in the first through hole 13 and abuts against the end part of the connecting piece 2.
Follow the axial direction of connection runs through to be equipped with second through-hole 21 follows the radial direction of connecting piece 2 is provided with third hole 22, third hole 22 with second through-hole 21 is linked together run through in the third hole 22 and be equipped with set screw 7. One end of the set screw 7 facing the second through hole 21 abuts against the measuring rod 32 of the dial indicator 3, so that the dial indicator 3 is fixed in the connecting piece 2. The end of the set screw 7 facing away from the second through hole 21 is located outside the connecting piece 2, so that the set screw 7 can be adjusted easily. When the reference surface of the workpiece to be measured needs to be determined again, the set screw 7 is rotated, so that the set screw 7 moves away from the second through hole 21 along the axial direction of the third hole 22, and the measuring rod 32 of the dial indicator 3 can move along the axial direction of the second through hole 21 in the second through hole 21, thereby realizing the redetermination of the reference surface of the workpiece to be measured.
When the measuring table 1 is horizontally placed, the dial indicator 3 is arranged in the measuring table 1 in an inverted mode, and measuring numbers on the dial indicator 3 are inverted and located below the measuring table 1. In order to facilitate reading of the measurement data, a second display 5 is connected to the dial indicator 3 through a data line 6, the second display 5 is used for synchronously displaying the measurement data on the dial indicator 3, and the second display 5 can be placed according to the position of a measurer, so that the measurement data can be read in real time conveniently. The second display 5 has the functions of synchronous zero setting and the like, and is convenient to operate.
In actual operation, a workpiece to be measured is placed on the measuring table 1, and a reference surface is determined by three highest points on the workpiece to be measured. And adjusting the position of the dial indicator 3 in the second through hole 21 to enable the end part of the measuring head 31 of the dial indicator 3 to be flush with the reference surface. And sliding the measured workpiece on the measuring table 1 at a constant speed to enable the surface to be measured of the measured workpiece to be in contact with the measuring head 31, displaying the measured data in real time by the dial indicator 3, and transmitting the measured data to the second display 5 in real time through the digital display gauge on the dial indicator 3. The measuring person obtains measurement data from the second display 5.
The principle and the implementation mode of the utility model are explained by applying specific embodiments in the utility model, and the description of the embodiments is only used for helping to understand the method and the core idea of the utility model; meanwhile, for a person skilled in the art, according to the idea of the present invention, there may be variations in the specific embodiments and the application scope, and in summary, the content of the present specification should not be construed as a limitation to the present invention.
Claims (8)
1. A flatness measuring apparatus, comprising:
the measuring table comprises a first side and a second side which are opposite, and a first through hole which is communicated with the first side and the second side is formed in the measuring table;
the connecting piece is provided with a second through hole in a penetrating mode along the axial direction of the connecting piece, and one end of the connecting piece is embedded into the first through hole from the first side of the measuring table, so that the second through hole is communicated with the first through hole;
and the dial indicator penetrates through the second through hole, and a measuring head of the dial indicator penetrates through the first through hole and then is positioned on the second side of the measuring table.
2. The flatness measuring apparatus according to claim 1, wherein: and a third hole is formed in the radial direction of the connecting piece, the third hole is communicated with the second through hole, a set screw penetrates through the third hole, and one end, facing the second through hole, of the set screw abuts against the measuring rod of the dial indicator, so that the dial indicator is fixed in the connecting piece.
3. The flatness measuring apparatus according to claim 1, wherein: and the dial indicator is connected with a second display through a data line, and the second display is used for synchronously displaying the measurement data on the dial indicator.
4. The flatness measuring apparatus according to claim 1, wherein: the side wall of the connecting piece is provided with a step surface, and the step surface is abutted to the first side of the measuring table.
5. The flatness measuring apparatus according to claim 1, wherein: a limiting part is arranged in the first through hole and abuts against the end part of the connecting piece.
6. The flatness measuring apparatus according to claim 1, wherein: the measuring table is made of granite, and the flatness of the second side of the measuring table meets the national standard 00-level requirement.
7. The flatness measuring apparatus according to claim 1, wherein: the measuring table is horizontally arranged, the first side and the second side are arranged in the vertical direction, and the second side is located above the first side.
8. The flatness measurement apparatus according to claim 7, wherein: at least three upright posts are arranged on the second side of the measuring table in parallel, and the upright posts are fixedly connected with the measuring table through screws.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122081408.4U CN215639250U (en) | 2021-08-31 | 2021-08-31 | Flatness measuring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122081408.4U CN215639250U (en) | 2021-08-31 | 2021-08-31 | Flatness measuring device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215639250U true CN215639250U (en) | 2022-01-25 |
Family
ID=79904741
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122081408.4U Expired - Fee Related CN215639250U (en) | 2021-08-31 | 2021-08-31 | Flatness measuring device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215639250U (en) |
-
2021
- 2021-08-31 CN CN202122081408.4U patent/CN215639250U/en not_active Expired - Fee Related
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20220125 |
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| CF01 | Termination of patent right due to non-payment of annual fee |