CN110887444A - Inner diameter measuring instrument - Google Patents
Inner diameter measuring instrument Download PDFInfo
- Publication number
- CN110887444A CN110887444A CN201811051227.3A CN201811051227A CN110887444A CN 110887444 A CN110887444 A CN 110887444A CN 201811051227 A CN201811051227 A CN 201811051227A CN 110887444 A CN110887444 A CN 110887444A
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- Prior art keywords
- shell
- fixing
- handle
- cable plug
- cable
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- 230000007246 mechanism Effects 0.000 claims abstract description 34
- 238000005259 measurement Methods 0.000 description 14
- 238000000034 method Methods 0.000 description 5
- 230000003287 optical effect Effects 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 230000008859 change Effects 0.000 description 2
- 238000000691 measurement method Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 239000000523 sample Substances 0.000 description 1
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Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B11/00—Measuring arrangements characterised by the use of optical techniques
- G01B11/08—Measuring arrangements characterised by the use of optical techniques for measuring diameters
- G01B11/12—Measuring arrangements characterised by the use of optical techniques for measuring diameters internal diameters
Abstract
The invention discloses an inner diameter measuring instrument which comprises a shell, a measuring mechanism and a fixing mechanism, wherein the measuring mechanism is connected to the front end of the shell, the fixing mechanism is arranged inside the shell, the measuring mechanism comprises a laser range finder, a connecting handle and a cable plug, the connecting handle is of a hollow structure, the laser range finder is arranged at the front end of the connecting handle, the cable plug is fixedly installed at the rear end of the connecting handle, and the laser range finder is connected with the cable plug through a cable. In the invention, the fixing ring in the fixing mechanism is positioned in the central position in the shell and fixedly connected with the shell, so that the measuring mechanism connected with the front end of the fixing mechanism is always positioned on the central axis of the whole instrument, and the fixing block connected with the front end of the fixing frame can be tightly attached to the inner side wall of the aperture, so that the instrument is always positioned in the central position of the measured inner diameter.
Description
Technical Field
The invention relates to the field of precision machinery, in particular to an inner diameter measuring instrument.
Background
In recent years, the precision measurement technology is rapidly developed, and the result is happy. For example, the on-line measurement technology can display the processing state in real time and detect whether an abnormal condition occurs in time, thereby greatly improving the production efficiency. A machine tool control device is required to have high accuracy, low cost, and small size.
Currently, pore diameter measurement methods adopted at home and abroad can be divided into contact measurement and non-contact measurement, wherein the contact measurement mainly comprises a coordinate measuring machine measurement method and an electrical contact method. The operation of a coordinate measuring machine measuring method is complex, and particularly, the influence of contact force can cause mechanical deformation of a measuring rod and a measuring head, so that a larger error is easily caused; the electric contact method is to utilize the instant of contact between the probe and the hole wall to electrify the circuit for aiming measurement, the displacement in x and y directions is given by the stepping motor, and the measurement precision is very low. The non-contact measurement is mainly optical and pneumatic. The pneumatic method can not measure the size and shape error of any section and has limited application. In the process of high-precision processing and quality management, along with the development of optical-mechanical-electrical integration and systematization, the optical measurement technology is rapidly developed, a large number of corresponding measuring machine products emerge, and the optical measurement instrument has the advantages of high precision, large measurement range, short detection time, non-contact type and the like.
Disclosure of Invention
In view of the above-mentioned shortcomings of the prior art, the present invention provides an inside diameter measuring instrument, which is used to solve the problems of complicated structure and inaccurate center positioning of the optical measuring instrument in the prior art.
In order to achieve the above and other related objects, the present invention provides an inside diameter measuring instrument, which includes a housing, a measuring mechanism and a fixing mechanism, wherein the measuring mechanism is connected to the front end of the housing, and the fixing mechanism is arranged inside the housing;
the measuring mechanism comprises a laser range finder, a connecting handle and a cable plug, the connecting handle is of a hollow structure, the laser range finder is arranged at the front end of the connecting handle, the cable plug is fixedly installed at the rear end of the connecting handle, and the laser range finder is connected with the cable plug through a cable;
the fixing mechanism comprises a fixing ring and a fixing frame, the fixing ring is arranged in the center of the front portion in the shell and fixedly connected with the shell through a clamping frame, a socket matched with a cable plug is embedded in the fixing ring, the socket is connected with an amplifier through a cable, the front end of the fixing frame is connected with fixing blocks at the upper side and the lower side of the shell, the rear end of the fixing frame is connected with a clamping handle through a connecting rod, and the clamping position of the clamping handle is arranged on the outer side of the shell;
the portable multifunctional electric scooter is characterized in that a display is arranged at the upper end of the shell, a handle is arranged at the rear end of the shell, a power supply is arranged in the handle, and a switch is arranged at the upper end of the handle.
Preferably, the upper and lower both sides of casing front end all are equipped with the mounting groove, the fixed block is located in the mounting groove, the lower extreme of fixed block passes through the spring and is connected with the bottom of mounting groove.
Preferably, the fixing frame penetrates through the groove wall to be connected with the fixing block, and a limiting ring is sleeved at the joint of the outer side of the fixing ring and the groove wall.
Preferably, the front end in the fixed ring is provided with a screw hole, the inner side wall of the screw hole is provided with a screw groove, and the outer side wall of the cable plug is provided with a thread matched with the screw groove.
Preferably, an insulating ring is sleeved at the joint of the outer side of the cable plug and the screw hole.
Preferably, the cables are in telecommunication connection with the display and the power supply, respectively.
Compared with the prior art, the invention has the beneficial effects that: the fixed ring in the fixing mechanism is located at the central position in the shell and is fixedly connected with the shell, so that the measuring mechanism connected with the front end of the fixing mechanism is always located on the central axis of the whole instrument, the fixed block connected with the front end of the fixing frame can be tightly attached to the inner side wall of the aperture, the instrument is always located at the central position of the measured inner diameter, the whole instrument is simple in structure and convenient to operate, the central positioning is accurate, and the measuring precision is high.
Drawings
The invention is described in further detail below with reference to specific embodiments and with reference to the following drawings.
FIG. 1 is a schematic structural diagram of an inner diameter measuring instrument according to the present invention;
fig. 2 is a schematic view of the connection between the measuring mechanism and the housing according to the present invention.
Wherein the reference numerals are specified as follows: the device comprises a shell 1, a laser range finder 2, a connecting handle 3, a cable plug 4, a fixing ring 5, a clamping frame 6, a display 7, a fixing frame 8, a connecting rod 9, a switch 10, a power supply 11, a handle 12, a clamping handle 13, a cable 14, an amplifier 15, a socket 16, a fixing block 17, a spring 18, a limiting ring 19, a screw hole 20, a screw groove 21, a thread 22 and an insulating ring 23.
Detailed Description
The following description of the embodiments of the present invention is provided for illustrative purposes, and other advantages and effects of the present invention will be apparent to those skilled in the art from the disclosure herein.
Please refer to fig. 1-2. It should be understood that the structures, ratios, sizes, and the like shown in the drawings and described in the specification are only used for matching with the disclosure of the specification, so as to be understood and read by those skilled in the art, and are not used to limit the conditions under which the present invention can be implemented, so that the present invention has no technical significance, and any structural modification, ratio relationship change, or size adjustment should still fall within the scope of the present invention without affecting the efficacy and the achievable purpose of the present invention. In addition, the terms "upper", "lower", "left", "right", "middle" and "one" used in the present specification are for clarity of description, and are not intended to limit the scope of the present invention, and the relative relationship between the terms and the terms is not to be construed as a scope of the present invention.
Referring to fig. 1, the invention provides an inner diameter measuring instrument, which comprises a shell 1, a measuring mechanism and a fixing mechanism, wherein the measuring mechanism is connected to the front end of the shell 1, and the fixing mechanism is arranged in the shell 1;
the measuring mechanism comprises a laser range finder 2, a connecting handle 3 and a cable plug 4, the connecting handle 3 is of a hollow structure, the laser range finder 2 is arranged at the front end of the connecting handle 3, the cable plug 4 is fixedly installed at the rear end of the connecting handle 3, and the laser range finder 2 is connected with the cable plug 4 through a cable 14;
the fixing mechanism comprises a fixing ring 5 and a fixing frame 8, the fixing ring 5 is arranged at the central position of the front part in the shell 1, the fixing ring 5 is fixedly connected with the shell 1 through a clamping frame 6, a socket 16 matched with the cable plug 4 is embedded in the fixing ring 5, the socket 16 is connected with an amplifier 15 through a cable 14, the front end of the fixing frame 8 is connected with fixing blocks 17 at the upper side and the lower side of the shell 1, the rear end of the fixing frame 8 is connected with a clamping handle 13 through a connecting rod 9, and the clamping part of the clamping handle 13 is arranged on the outer side of the;
through the technical scheme, because solid fixed ring 5 is located the central point of casing 1, and inside wall fixed connection through holding frame 6 and casing 1, it is always in the position of casing 1 axis to have guaranteed that solid fixed ring 5 embeds socket 16 of establishing, thereby make the measuring mechanism with socket 16 threaded connection also always keep central point, and mount 8 has fixed block 17 along axis symmetric connection in the upper and lower both sides of casing 1, be used for fixing whole instrument on the inside wall of survey internal diameter, laser range finder 2 is in on the axis of survey internal diameter when having guaranteed to measure.
The upper end of the shell 1 is provided with a display 7 for observing the measuring result conveniently, the rear end of the shell 1 is provided with a handle 12, a power supply 11 is arranged in the handle 12, and the upper end of the handle 12 is provided with a switch 10.
The upper and lower both sides of casing 1 front end all are equipped with the mounting groove, and fixed block 17 is located in the mounting groove, and the lower extreme of fixed block 17 passes through spring 18 to be connected with the bottom of mounting groove, through adjusting centre gripping handle 13, can make fixed block 17 float from top to bottom, and during the measurement, fixed block 17 moves down earlier and makes measuring mechanism get into the internal diameter, and then the fixed block shifts up under the effect of spring 18, tightly pastes the internal diameter lateral wall, keeps the stability of measurement during operation.
Referring to fig. 2, the fixing frame 8 penetrates through the groove wall to be connected with the fixing block 17, and a limiting ring 19 is sleeved at the joint of the outer side of the fixing ring 5 and the groove wall to control the floating range of the fixing block 17.
The front end in the fixed ring 5 is equipped with screw 20, is equipped with thread groove 21 on the inside wall of screw 20, is equipped with on the lateral wall of cable plug 4 with thread groove 21 matched with screw thread 22, and the cooperation of screw thread 22 and thread groove 21 makes cable plug 4 and socket 16 be stably connected.
An insulating ring 23 is sleeved at the joint of the outer side of the cable plug 4 and the screw hole 20.
The cable 14 is in telecommunication connection with the display 7 and the power supply 11, respectively.
During specific implementation, with the front end zonulae occludens of measuring mechanism and casing 1, press clamping handle 13, fixed block 17 moves down, arrange measuring mechanism and casing 1's front end in by the internal diameter, loosen clamping handle 13, fixed block 17 tightly pastes the internal diameter inside wall under the effect of elasticity, then laser range finder 2 that is located on the internal diameter axis begins to measure the internal diameter, the data result that reachs transmits to display 7 after amplifier 15 enlargies through cable 14, make things convenient for personnel to look over.
In conclusion, the invention has the advantages of simple structure, convenient operation, accurate center positioning and high measurement precision. Therefore, the present invention effectively overcomes various disadvantages of the prior art and has high industrial utilization value.
The foregoing embodiments are merely illustrative of the principles and utilities of the present invention and are not intended to limit the invention. Any person skilled in the art can modify or change the above-mentioned embodiments without departing from the spirit and scope of the present invention. Accordingly, it is intended that all equivalent modifications or changes which can be made by those skilled in the art without departing from the spirit and technical spirit of the present invention be covered by the claims of the present invention.
Claims (6)
1. The inner diameter measuring instrument is characterized by comprising a shell (1), a measuring mechanism and a fixing mechanism, wherein the measuring mechanism is connected to the front end of the shell (1), and the fixing mechanism is arranged in the shell (1);
the measuring mechanism comprises a laser range finder (2), a connecting handle (3) and a cable plug (4), the connecting handle (3) is of a hollow structure, the laser range finder (2) is arranged at the front end of the connecting handle (3), the cable plug (4) is fixedly installed at the rear end of the connecting handle (3), and the laser range finder (2) is connected with the cable plug (4) through a cable (14);
the fixing mechanism comprises a fixing ring (5) and a fixing frame (8), the fixing ring (5) is arranged at the central position of the inner front part of the shell (1), the fixing ring (5) is fixedly connected with the shell (1) through a clamping frame (6), a socket (16) matched with a cable plug (4) is embedded in the fixing ring (5), the socket (16) is connected with an amplifier (15) through a cable (14), the positions of the upper side and the lower side of the shell (1) at the front end of the fixing frame (8) are respectively connected with a fixing block (17), the rear end of the fixing frame (8) is connected with a clamping handle (13) through a connecting rod (9), and the clamping part of the clamping handle (13) is arranged on the outer side of the shell (1);
the portable multifunctional electric toothbrush is characterized in that a display (7) is arranged at the upper end of the shell (1), a handle (12) is arranged at the rear end of the shell (1), a power supply (11) is arranged in the handle (12), and a switch (10) is arranged at the upper end of the handle (12).
2. An inside diameter measuring instrument according to claim 1, wherein: the upper and lower both sides of casing (1) front end all are equipped with the mounting groove, fixed block (17) are located in the mounting groove, the lower extreme of fixed block (17) passes through spring (18) and is connected with the bottom of mounting groove.
3. An inside diameter measuring instrument according to claim 2, wherein: the fixing frame (8) penetrates through the groove wall to be connected with the fixing block (17), and a limiting ring (19) is sleeved at the joint of the outer side of the fixing ring (5) and the groove wall.
4. An inside diameter measuring instrument according to claim 1, wherein: the front end in the fixed ring (5) is provided with a screw hole (20), the inner side wall of the screw hole (20) is provided with a thread groove (21), and the outer side wall of the cable plug (4) is provided with a thread (22) matched with the thread groove (21).
5. An inside diameter measuring instrument according to claim 4, wherein: and an insulating ring (23) is sleeved at the joint of the outer side of the cable plug (4) and the screw hole (20).
6. An inside diameter measuring instrument according to claim 1, wherein: the cable (14) is in telecommunication connection with the display (7) and the power supply (11), respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811051227.3A CN110887444A (en) | 2018-09-10 | 2018-09-10 | Inner diameter measuring instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811051227.3A CN110887444A (en) | 2018-09-10 | 2018-09-10 | Inner diameter measuring instrument |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110887444A true CN110887444A (en) | 2020-03-17 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811051227.3A Pending CN110887444A (en) | 2018-09-10 | 2018-09-10 | Inner diameter measuring instrument |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110887444A (en) |
Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4385446A (en) * | 1980-02-08 | 1983-05-31 | Piere Roch S.A.R.L. | Pistol-grip instrument for measurement of inside diameters |
| US4885845A (en) * | 1987-05-20 | 1989-12-12 | Mitutoyo Corporation | Inner diameter measuring machine |
| JP2005106700A (en) * | 2003-09-30 | 2005-04-21 | Honda Motor Co Ltd | Inside diameter measurement method for high-temperature cylindrical body and inside diameter measurement instrument for the same |
| CN203657785U (en) * | 2014-01-13 | 2014-06-18 | 沈阳鼓风机集团核电泵业有限公司 | Gun-type deep hole inner diameter measuring instrument |
| KR101684418B1 (en) * | 2016-05-31 | 2016-12-07 | 동도테크 주식회사 | Centering holder for inside-diameter measuring gauge |
| CN106556316A (en) * | 2016-10-14 | 2017-04-05 | 河南平高电气股份有限公司 | A kind of dial bore gage measurement bay |
| CN206146348U (en) * | 2016-10-27 | 2017-05-03 | 贵州安吉航空精密铸造有限责任公司 | Wall -depth detecting device of wax matrix and foundry goods |
| CN206648633U (en) * | 2017-03-13 | 2017-11-17 | 武汉理工大学 | Robot bearing bore diameter measuring instrument |
| KR101803478B1 (en) * | 2016-11-07 | 2017-11-30 | 주식회사 한국공업엔지니어링 | Tube thickness measurement device |
| CN207007099U (en) * | 2017-05-16 | 2018-02-13 | 天津鸿源瑞丽科技发展有限公司 | A kind of adapting device of portable surveying instrument handle front end |
| KR20180022096A (en) * | 2016-08-23 | 2018-03-06 | 국방과학연구소 | Apparatus for measuring inner diameter of artillery and method thereof |
-
2018
- 2018-09-10 CN CN201811051227.3A patent/CN110887444A/en active Pending
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4385446A (en) * | 1980-02-08 | 1983-05-31 | Piere Roch S.A.R.L. | Pistol-grip instrument for measurement of inside diameters |
| US4885845A (en) * | 1987-05-20 | 1989-12-12 | Mitutoyo Corporation | Inner diameter measuring machine |
| JP2005106700A (en) * | 2003-09-30 | 2005-04-21 | Honda Motor Co Ltd | Inside diameter measurement method for high-temperature cylindrical body and inside diameter measurement instrument for the same |
| CN203657785U (en) * | 2014-01-13 | 2014-06-18 | 沈阳鼓风机集团核电泵业有限公司 | Gun-type deep hole inner diameter measuring instrument |
| KR101684418B1 (en) * | 2016-05-31 | 2016-12-07 | 동도테크 주식회사 | Centering holder for inside-diameter measuring gauge |
| KR20180022096A (en) * | 2016-08-23 | 2018-03-06 | 국방과학연구소 | Apparatus for measuring inner diameter of artillery and method thereof |
| CN106556316A (en) * | 2016-10-14 | 2017-04-05 | 河南平高电气股份有限公司 | A kind of dial bore gage measurement bay |
| CN206146348U (en) * | 2016-10-27 | 2017-05-03 | 贵州安吉航空精密铸造有限责任公司 | Wall -depth detecting device of wax matrix and foundry goods |
| KR101803478B1 (en) * | 2016-11-07 | 2017-11-30 | 주식회사 한국공업엔지니어링 | Tube thickness measurement device |
| CN206648633U (en) * | 2017-03-13 | 2017-11-17 | 武汉理工大学 | Robot bearing bore diameter measuring instrument |
| CN207007099U (en) * | 2017-05-16 | 2018-02-13 | 天津鸿源瑞丽科技发展有限公司 | A kind of adapting device of portable surveying instrument handle front end |
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