CN210464397U - Piston sensing type bearing inner and outer diameter measuring system - Google Patents
Piston sensing type bearing inner and outer diameter measuring system Download PDFInfo
- Publication number
- CN210464397U CN210464397U CN201921736622.5U CN201921736622U CN210464397U CN 210464397 U CN210464397 U CN 210464397U CN 201921736622 U CN201921736622 U CN 201921736622U CN 210464397 U CN210464397 U CN 210464397U
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- mercury
- hydraulic
- piston
- capillary tube
- cylinder
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- QSHDDOUJBYECFT-UHFFFAOYSA-N mercury Chemical compound [Hg] QSHDDOUJBYECFT-UHFFFAOYSA-N 0.000 claims abstract description 57
- 229910052753 mercury Inorganic materials 0.000 claims abstract description 57
- 238000005259 measurement Methods 0.000 claims abstract description 17
- 239000010453 quartz Substances 0.000 claims abstract description 12
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 12
- 239000000956 alloy Substances 0.000 claims abstract description 9
- 229910045601 alloy Inorganic materials 0.000 claims abstract description 9
- 230000001681 protective effect Effects 0.000 claims description 6
- 238000012994 industrial processing Methods 0.000 abstract description 2
- 239000007788 liquid Substances 0.000 description 10
- 238000010586 diagram Methods 0.000 description 2
- 238000000691 measurement method Methods 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
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- A Measuring Device Byusing Mechanical Method (AREA)
Abstract
The utility model relates to an accurate measurement and automatic control technical field among the industrial processing field provide a piston sensing formula bearing inside and outside diameter measurement system. The piston sensing type bearing inner and outer diameter measuring system is provided with a circular base; the circular base is provided with a plurality of supporting blocks for measuring objects which are uniformly distributed along the circumference; the top of the measuring object supporting block is provided with a hydraulic mercury cylinder with a cavity filled with mercury; one end of the hydraulic mercury cylinder is communicated with a mercury pool arranged on the round base; the other end of the hydraulic mercury cylinder is provided with a piston column; the piston column is a structure capable of moving in the hydraulic mercury cylinder; the end head of the other end of the piston column is embedded with an alloy contact ball which is used for contacting with a measured object; a capillary tube protection back plate is arranged on the mercury pool; the middle part of the capillary tube protection back plate is provided with a quartz capillary tube. The utility model discloses can enough measure the absolute value and can measure relative difference value again.
Description
Technical Field
The utility model relates to an accurate measurement and automatic control technical field among the industrial processing field, concretely relates to piston hydraulic pressure sensing type accurate size measurement system.
Background
The existing measuring technology is carried out by directly overlapping a measurer on the surface of a measured object and reading through scales on the measurer, but a conventional measurer only has two overlapping points and is not enough for carrying out accurate and visual measurement on the complete appearance, contour, shape and the like of the measured object.
The measurement accuracy of the conventional measuring tool is only 1 μm and 0.1 μm, which is not enough for ultra-high accuracy measurement.
The conventional measuring tool can only measure the absolute value between the measured points and cannot synchronously measure the relative value between the measured points and the reference point.
Conventional gauges cannot simultaneously measure differential values between multiple measured points.
SUMMERY OF THE UTILITY MODEL
In order to solve the technical problem, the utility model aims at providing a piston hydraulic pressure sensing type precision dimension measurement system.
The utility model adopts the following technical scheme for accomplishing the above purpose:
a piston hydraulic sensing type precise dimension measuring system is provided with a circular base; the circular base is provided with a plurality of measuring object supporting blocks which are uniformly distributed along the circumference; the plurality of measurement object support blocks form a circular ring for supporting a measurement object; one surface of the measuring object supporting block, which is contacted with the measured object, is provided with a supporting groove; the top of the measuring object supporting block is provided with a hydraulic mercury cylinder with a cavity filled with mercury; one end of the hydraulic mercury cylinder is communicated with a mercury pool arranged on the circular base; the other end of the hydraulic mercury cylinder is provided with a piston column; the piston column is a structure capable of moving in the hydraulic mercury cylinder; one end of the piston column is communicated with the hydraulic mercury cylinder, and the end head of the other end of the piston column is embedded with an alloy contact ball which is used for being in contact with a measured object; the alloy contact ball is pressed on the surface of a measured object under the action of mercury in the piston column; the mercury pool is provided with a capillary tube protection back plate; the middle part of the capillary tube protective back plate is provided with a quartz capillary tube; the lower end of the quartz capillary is communicated with the mercury pool, and the upper end of the quartz capillary is communicated with the overflow pool on the capillary protection back plate.
The capillary tube protective back plate is provided with scale marks.
The utility model provides a piston hydraulic pressure sensing type precision dimension measurement system adopts above-mentioned technical scheme, has solved the drawback that conventional measurement technique can not carry out the multiple spot simultaneous measurement to the measurand, and conventional measurement technique can only measure the distance and can not directly show data such as profile, shape, position; the utility model can measure both absolute value and relative difference value; the precision of the conventional measurement technology is improved by multiple orders of magnitude.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a schematic structural diagram of the middle hydraulic mercury cylinder of the present invention.
In the figure: 1. the device comprises a circular base, 2 a support block for a measured object, 3 a hydraulic mercury cylinder, 4 a mercury pool, 5 a piston column, 6 an alloy contact ball, 7 a measured object, 8 a capillary protection back plate, 9 a quartz capillary, 10 an overflow pool, 11 a liquid level adjusting knob, 12 a mercury column, 13 a connecting pipe.
Detailed Description
The invention is described in connection with the accompanying drawings and the embodiments:
as shown in fig. 1, a piston hydraulic pressure sensing type precision dimension measuring system comprises a circular base 1; the circular base 1 is provided with a plurality of measuring object supporting blocks 2 which are uniformly distributed along the circumference; the plurality of measuring object supporting blocks 2 form a circular ring for supporting a measured object; one surface of the measuring object supporting block 2, which is contacted with a measured object, is provided with supporting grooves; referring to fig. 2, a hydraulic mercury cylinder 3 filled with mercury in a cavity is arranged at the top of the measuring object supporting block 2; one end of the hydraulic mercury cylinder 3 is communicated with a mercury pool 4 arranged on a circular base through a connecting pipe 14; the other end of the hydraulic mercury cylinder 3 is provided with a piston column 5; the piston column 5 is a structure capable of moving in the hydraulic mercury cylinder 4; one end of the piston column 5 is communicated with the hydraulic mercury cylinder 2, and the end head of the other end is embedded with an alloy contact ball 6 for contacting with a measured object; the alloy contact ball 6 is pressed on the surface of the object to be measured 7 under the action of mercury in the piston column; a capillary tube protection back plate 8 is arranged on the mercury pool; the capillary tube protective back plate 8 is provided with scale marks; a quartz capillary tube 9 is arranged in the middle of the capillary tube protective back plate 8; the lower end of the quartz capillary 9 is communicated with the mercury pool 4, and the upper end of the quartz capillary is communicated with the overflow pool 10 on the capillary protection back plate; a liquid level adjusting knob is arranged on the capillary tube protection back plate; when the liquid level adjusting knob is inserted into the mercury pool, the liquid level of the capillary tube rises, and when the capillary tube is pulled out, the liquid level falls; the piston column 5 is in the mercury hydraulic cylinder and freely stretches out and draws back according to the outer wall position of the measured object sensed by the alloy contact ball 6, and liquid mercury is pressed and relaxed at the same time, so that the volume change of mercury in the hydraulic cylinder is caused, namely the piston column 5 performs piston plugging movement in a cavity filled with mercury at the top of the circular base 1, when the piston column 5 is plugged into the circular base 1, the mercury in the cavity is extruded and flows towards the direction of the capillary tube through a pipeline, so that the liquid level of the mercury at the center of the capillary tube is raised, and the liquid level is lowered when the piston column 5 is plugged out; the volume change value is transmitted to a mercury pool 4 by a liquid pipeline, a quartz capillary tube 9 is arranged at the top of the mercury pool 4, a capillary hole is arranged in the capillary tube, and a mercury liquid level adjusting knob 11 is adjusted to enable mercury in the mercury pool to overflow into the capillary tube to form a mercury column 12.
The diameter of the hydraulic mercury cylinder 3 is 30mm, the diameter of the capillary tube at the center of the mercury column is observed to be 0.1mm, and the diameter of the measured object is assumed to change by 0.001mm, according to the formula of the cylinder volume V = pi r2h, the height change of the observation column is 270mm, and the height change of the 2.7mm mercury column of the observation column represents the change of the measured diameter of 0.01 mu m through conversion.
Claims (2)
1. The utility model provides a piston sensing formula bearing inside and outside footpath measurement system which characterized in that: the measuring system is provided with a circular base; the circular base is provided with a plurality of measuring object supporting blocks which are uniformly distributed along the circumference; the plurality of measurement object support blocks form a circular ring for supporting a measurement object; one surface of the measuring object supporting block, which is contacted with the measured object, is provided with a supporting groove; the top of the measuring object supporting block is provided with a hydraulic mercury cylinder with a cavity filled with mercury; one end of the hydraulic mercury cylinder is communicated with a mercury pool arranged on the circular base; the other end of the hydraulic mercury cylinder is provided with a piston column; the piston column is a structure capable of moving in the hydraulic mercury cylinder; one end of the piston column is communicated with the hydraulic mercury cylinder, and the end head of the other end of the piston column is embedded with an alloy contact ball which is used for being in contact with a measured object; the alloy contact ball is pressed on the surface of a measured object under the action of mercury in the piston column; the mercury pool is provided with a capillary tube protection back plate; the middle part of the capillary tube protective back plate is provided with a quartz capillary tube; the lower end of the quartz capillary is communicated with the mercury pool, and the upper end of the quartz capillary is communicated with the overflow pool on the capillary protection back plate.
2. The piston sensing bearing inner and outer diameter measurement system of claim 1, wherein: the capillary tube protective back plate is provided with scale marks.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921736622.5U CN210464397U (en) | 2019-10-16 | 2019-10-16 | Piston sensing type bearing inner and outer diameter measuring system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921736622.5U CN210464397U (en) | 2019-10-16 | 2019-10-16 | Piston sensing type bearing inner and outer diameter measuring system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210464397U true CN210464397U (en) | 2020-05-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921736622.5U Active CN210464397U (en) | 2019-10-16 | 2019-10-16 | Piston sensing type bearing inner and outer diameter measuring system |
Country Status (1)
| Country | Link |
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| CN (1) | CN210464397U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112066851A (en) * | 2020-08-20 | 2020-12-11 | 齐祖彬 | Accurate shell roundness detection mechanism for sweeping robot |
-
2019
- 2019-10-16 CN CN201921736622.5U patent/CN210464397U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112066851A (en) * | 2020-08-20 | 2020-12-11 | 齐祖彬 | Accurate shell roundness detection mechanism for sweeping robot |
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