CN115143865A - Handheld inner hole measuring tool and using method - Google Patents
Handheld inner hole measuring tool and using method Download PDFInfo
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- CN115143865A CN115143865A CN202210712201.9A CN202210712201A CN115143865A CN 115143865 A CN115143865 A CN 115143865A CN 202210712201 A CN202210712201 A CN 202210712201A CN 115143865 A CN115143865 A CN 115143865A
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- 238000000034 method Methods 0.000 title claims abstract description 7
- 210000000078 claw Anatomy 0.000 claims abstract description 30
- 238000005259 measurement Methods 0.000 claims abstract description 18
- 238000009434 installation Methods 0.000 claims description 9
- 238000004519 manufacturing process Methods 0.000 abstract description 5
- 238000001514 detection method Methods 0.000 description 2
- 238000010276 construction Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000000691 measurement method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B5/00—Measuring arrangements characterised by the use of mechanical techniques
- G01B5/08—Measuring arrangements characterised by the use of mechanical techniques for measuring diameters
- G01B5/12—Measuring arrangements characterised by the use of mechanical techniques for measuring diameters internal diameters
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- A Measuring Device Byusing Mechanical Method (AREA)
Abstract
The invention discloses a handheld inner hole measuring tool and a using method thereof, and belongs to the technical field of measuring equipment. A hand-held bore gauge comprising: the device comprises a handheld grab handle, a cross beam, a grab handle connecting screw, a fixed measuring arm sliding chute, a fixed measuring arm locking nut, a moving amount arm protecting frame, a measuring claw, a moving amount arm rotating shaft, a spring, a dial indicator mounting frame, a dial indicator mounting locking nut, a dial indicator mounting frame fastening screw and a dial indicator. The hand-held grab handle is a part held by a hand during manual measurement. The handheld grab handle and the cross beam are fastened and connected through the grab handle connecting screw, and the split design aims at facilitating manufacturing and carrying. All moving parts of the gauge are mounted entirely within the cross-beam. The invention has the advantages of light and portable design, convenient and simple use, higher measurement precision, wide application range, easy manufacture and higher popularization and application value.
Description
Technical Field
The invention discloses a handheld inner hole measuring tool and a using method thereof, and belongs to the technical field of measuring equipment.
Background
In machining parts, the characteristic design that the part has a very narrow slot cavity or inner hole is common. However, after the parts are machined, the detection of the features often becomes a difficult problem, and the conventional measuring tool cannot directly reach the feature part, generally adopts an indirect measurement method, and cannot realize accurate detection.
Disclosure of Invention
Borrow for reference the principle of equidistance lever, make through closed switch and measure the claw and can freely close and open, along with measuring the motion of claw, trigger the amesdial through leverage to obtain the measurement size. Meanwhile, the measuring tool is provided with an anti-collision protection device, so that the influence on normal measurement of the measuring tool caused by improper use is avoided.
The technical scheme of the invention is as follows:
a hand-held bore gauge comprising: the device comprises a handheld grab handle, a cross beam, a grab handle connecting screw, a fixed measuring arm sliding chute, a fixed measuring arm locking nut, a moving amount arm protecting frame, a measuring claw, a moving amount arm rotating shaft, a spring, a dial indicator mounting frame, a dial indicator mounting locking nut, a dial indicator mounting frame fastening screw and a dial indicator.
The handheld grab handle is a part which is held by a hand during manual measurement. The handheld grab handle and the cross beam are fastened and connected through the grab handle connecting screw, and the split design aims at facilitating manufacturing and carrying. All moving parts of the gauge are all mounted within the cross beam.
And the fixed measuring arm is arranged in a fixed measuring arm sliding groove in the cross beam. The fixed measuring arm can slide back and forth in the fixed measuring arm sliding groove, and the distance between the fixed measuring arm and the moving arm protection frame and the distance between the fixed measuring arm and the moving arm can be adjusted, namely, the measuring range of the measuring tool can be adjusted at will according to the size of the part.
The fixed measuring arm locking nut is used for locking the fixed measuring arm after the range position of the fixed measuring arm is adjusted, and the phenomenon that the fixed measuring arm is loosened and displaced during measurement to influence the measurement precision is avoided.
The measuring claw is arranged on the moving amount arm. And can move between the moving amount arm guards. The main function of the moving arm protection frame is to protect the measuring jaw.
One end of the movement arm is in contact with a feeler lever of the dial indicator. When the measuring claw moves back and forth, the movement arm drives the feeler lever seat of the dial indicator to move reversely under the positioning action of the movement arm rotating shaft.
The spring is installed on the dial indicator installation frame. One end of the spring is connected with the moving amount arm. The moving-amount arm automatically moves away from the fixed-amount arm under the tension force of the spring. The purpose is, reduce the manual operation degree of difficulty, improve the operation convenience.
The dial indicator mounting rack is tightly mounted on the handheld grab handle through a dial indicator mounting rack fastening screw.
The dial indicator is installed in the dial indicator installation frame, the dial indicator contact is in contact with the movement amount arm, and the dial indicator installation locking nut is used for locking and fixing the dial indicator. When the moving arm moves, the dial indicator needle is pushed to rotate, and an operator determines the dimensional accuracy through the indicated scale of the dial indicator needle.
The use method of the hand-held inner hole measuring tool comprises the following steps:
the first step is as follows: measuring tool calibration
1.1 loosening the locking nut of the fixed measuring arm and moving the fixed measuring arm to the required measuring range position.
And 1.2, locking the fixed measuring arm locking nut.
1.3 the hand-held grab handle is held by a hand, and the moving quantity arm is hooked by a finger to close the movable measuring claw and the fixed quantity arm.
1.4, the movable measuring claw and the fixed measuring arm extend into an inner hole of the standard ring gauge.
1.5, loosening the moving amount arm hooked by the finger to open the movable measuring claw to be in contact with the inner hole of the ring gauge.
1.6 shake the measuring tool back and forth several times, observe the reading condition of the dial indicator, and stop shaking when the reading of the dial indicator 11 is minimum. The dial plate of the dial indicator is rotated to align the '0' line of the dial with the indicator needle. The measuring size of the measuring tool at this moment is the size of the inner diameter of the standard ring gauge.
1.7 removing the gauge from the ring gauge.
1.8 repeating the steps to check the measuring tool accurately.
The second step is that: measurement of parts
2.1 holding the hand-held grab handle by a hand, hooking the moving amount arm by fingers, the movable measuring claw and the fixed measuring arm are closed.
2.2, extending the movable measuring claw and the fixed measuring arm into the to-be-measured area of the part.
2.3, loosening the movement arm hooked by the finger to open the movable measuring claw to contact with the measured surface of the part.
And 2.4, shaking the measuring tool back and forth for several times, observing the reading condition of the dial indicator, and stopping shaking when the reading of the dial indicator is minimum.
2.5 size calculation: the dimension of the measured part element = the diameter dimension of the standard ring gauge + the reading of the dial gauge when measuring the part.
2.6 removing the gauge from the part.
2.7 the measurement is finished.
The invention has the advantages that:
the invention has the advantages of light and portable design, convenient and simple use, higher measurement precision, wide application range, easy manufacture and higher popularization and application value.
Drawings
FIG. 1 is a schematic view of a gauge construction.
Reference numerals are as follows: 1, holding a handle; 2, a cross beam; 3, connecting a screw with a grab handle; 4, fixing a measuring arm; 5 fixing a measuring arm sliding chute; 6 fixing a measuring arm locking nut; 7 moving the arm protection bracket; 8, measuring a claw; 9 moving amount arm; 10 moving amount arm rotating shaft; 11 a spring; 12 a dial indicator mounting rack; 13, mounting a locking nut on the dial indicator; 14 micrometer mounting bracket fastening screws; 15 dial gauge.
Detailed Description
The invention will now be further described with reference to the accompanying drawings
Example 1:
a hand-held bore measuring tool, comprising: the dial gauge comprises a handheld grab handle 1, a cross beam 2, a grab handle connecting screw 3, a fixed measuring arm 4, a fixed measuring arm sliding chute 5, a fixed measuring arm locking nut 6, a moving amount arm protection frame 7, a measuring claw 8, a moving amount arm 9, a moving amount arm rotating shaft 10, a spring 11, a dial gauge mounting frame 12, a dial gauge mounting locking nut 13, a dial gauge mounting frame fastening screw 14 and a dial gauge 15.
The hand-held grab handle 1 is a part held by a hand during manual measurement. The handheld grab handle 1 and the cross beam 2 are fastened and connected through the grab handle connecting screw 3, and the split design aims at facilitating manufacturing and carrying. All moving parts of the gauge are mounted within the cross beam 2.
And the fixed measuring arm 4 is arranged in a fixed measuring arm sliding groove 5 in the cross beam 2. The fixed arm 4 can slide back and forth in the fixed arm chute 5, and the distance between the fixed arm and the moving arm protection frame 7 and the distance between the fixed arm and the moving arm 9 can be adjusted, that is, the measuring range of the measuring tool can be adjusted at will according to the size of the part.
The fixed measuring arm locking nut 6 is used for locking the fixed measuring arm 4 after the range position of the fixed measuring arm 4 is adjusted, and the phenomenon that the fixed measuring arm 4 is loosened and displaced during measurement to influence the measurement precision is avoided.
The measuring jaw 8 is mounted on a displacement arm 9. And can move between the moving amount arm guards 7. The main function of the moving arm protection bracket 7 is to protect the measuring jaw 8.
One end of the moving arm 9 is contacted with a contact rod of the dial indicator 15. When the measuring claw 8 moves back and forth, under the positioning action of the moving arm rotating shaft 10, the moving arm drives the feeler lever seat of the dial indicator 15 to move reversely.
The spring 11 is arranged on the dial indicator mounting frame 12. One end of the spring 11 is connected to the moving amount arm 9. The moving-amount arm 9 automatically moves away from the fixed-amount arm 4 under the tension force of the spring 11. The purpose is, reduce the manual operation degree of difficulty, improve the operation convenience.
The dial indicator mounting rack 12 is tightly mounted on the handheld grab handle 1 through a dial indicator mounting rack fastening screw 14.
The dial indicator 15 is installed in the dial indicator installation frame 12, the contact of the dial indicator contacts with the movement amount arm 9, and the dial indicator is locked and fixed through the dial indicator installation locking nut 13. When the moving arm 9 moves, the dial indicator 15 is pushed to rotate, and an operator determines the size precision by indicating the scale of the dial indicator 15.
Example 2:
the use method of the hand-held inner hole measuring tool comprises the following steps:
the first step is as follows: measuring tool calibration
1.1 loosening the locking nut 6 of the fixed measuring arm, and moving the fixed measuring arm 4 to the required measuring range position.
1.2 locking fixed measuring arm locking nut 6.
1.3 the hand-held grab handle 1 is held by a hand, and the moving amount arm 9 is hooked by fingers, so that the movable measuring claw 8 and the fixed amount arm 4 are closed.
1.4, the movable measuring claw 8 and the fixed measuring arm 4 extend into an inner hole of a standard ring gauge.
1.5, loosening the moving amount arm 9 hooked by the finger to open the movable measuring claw 8 to be in contact with the inner hole of the ring gauge.
1.6 shaking the measuring tool back and forth for several times, observing the reading condition of the dial indicator 15, and stopping shaking when the reading of the dial indicator 11 is minimum. The dial of the dial 15 is rotated to align the "0" line of the dial with the hand. The measuring size of the measuring tool at this moment is the size of the inner diameter of the standard ring gauge.
1.7 removing the measuring standard from the ring gauge.
1.8 repeating the above steps, and checking the measuring tool.
The second step is that: part measurement
2.1 the hand-held handle 1 is held by a hand, and the moving amount arm 9 is hooked by fingers, so that the movable measuring claw 8 and the fixed amount arm 4 are closed.
2.2, the movable measuring claw 8 and the fixed measuring arm 4 extend into the region to be measured of the part.
2.3, loosening the moving arm 9 hooked by the finger to open the movable measuring claw 8 to contact with the measured surface of the part.
2.4 shake the measuring tool back and forth several times, observe the reading condition of the dial indicator 15, and stop shaking when the reading of the dial indicator 15 is minimum.
2.5 size calculation: the dimension of the measured part element = the diameter dimension of the standard ring gauge + the reading of the dial indicator 15 when measuring the part.
2.6 removing the gauge from the part.
2.7 the measurement is finished.
The above embodiments are merely illustrative of the technical ideas and features of the present invention, and the purpose thereof is to enable those skilled in the art to understand the contents of the present invention and implement the present invention, and not to limit the protection scope of the present invention. All equivalent changes and modifications made according to the spirit of the present invention should be covered in the protection scope of the present invention.
Claims (3)
1. Hand-held type hole measuring tool, its characterized in that includes: the dial gauge comprises a handheld grab handle (1), a cross beam (2), a grab handle connecting screw (3), a fixed measuring arm (4), a fixed measuring arm sliding chute (5), a fixed measuring arm locking nut (6), a moving amount arm protecting frame (7), a measuring claw (8), a moving amount arm (9), a moving amount arm rotating shaft (10), a spring (11), a dial gauge mounting frame (12), a dial gauge mounting locking nut (13), a dial gauge mounting frame fastening screw (14) and a dial gauge (15);
the handheld grab handle (1) is a part which is held by a hand during manual measurement; the handheld grab handle (1) and the cross beam (2) are fastened and connected through a grab handle connecting screw (3), and all moving parts of the measuring tool are all arranged in the cross beam (2);
the fixed measuring arm (4) is arranged in a fixed measuring arm sliding groove (5) in the cross beam (2); the fixed measuring arm (4) can slide back and forth in the fixed measuring arm sliding groove (5) and can adjust the distance between the fixed measuring arm and the moving arm protection frame (7) and the distance between the fixed measuring arm and the moving arm (9);
the fixed measuring arm locking nut (6) is used for locking the fixed measuring arm (4) after the measuring range position of the fixed measuring arm (4) is adjusted; the measuring claw (8) is arranged on the moving amount arm (9) and can move between the moving amount arm protection frames (7);
one end of the movement arm (9) is in contact with a contact rod of the dial indicator (15), and when the equivalent claw (8) moves back and forth, the movement arm drives a contact rod seat of the dial indicator (15) to move reversely under the positioning action of a movement arm rotating shaft (10);
the spring (11) is installed on the dial indicator installation frame (12), and one end of the spring (11) is connected with the movement amount arm (9);
the dial indicator mounting rack (12) is tightly mounted on the handheld grab handle (1) through a dial indicator mounting rack fastening screw (14); the dial indicator (15) is installed in the dial indicator installation frame (12).
2. The hand-held inner hole measuring tool is characterized in that the dial indicator (15) is installed in the dial indicator installation frame (12), the contact of the dial indicator is contacted with the movement arm (9), and the dial indicator is locked and fixed through a dial indicator installation locking nut (13); when the moving arm (9) moves, the dial indicator (15) is pushed to rotate, and an operator determines the size precision through the scale indicated by the dial indicator (15).
3. The method of using the hand-held internal bore gauge according to claim 1 or 2, characterized by the steps of:
the first step is as follows: measuring tool calibration
1.1, loosening a locking nut (6) of the fixed measuring arm, and moving the fixed measuring arm (4) to a required measuring range position;
1.2 locking a fixed measuring arm locking nut (6);
1.3, the hand-held grab handle (1) is held by a hand, and the moving quantity arm (9) is hooked by fingers to close the movable measuring claw (8) and the fixed quantity arm (4);
1.4, extending the movable measuring claw (8) and the fixed measuring arm (4) into an inner hole of a standard ring gauge;
1.5, loosening a moving amount arm (9) hooked by a finger to open a movable measuring claw (8) to be in contact with an inner hole of the ring gauge;
1.6 shaking the measuring tool back and forth for several times, observing the reading condition of the dial indicator (15), and stopping shaking when the reading of the dial indicator 11 is minimum; rotating the dial plate of the dial indicator (15) to align the 0 line of the dial with the indicator needle; the measuring tool at the moment measures the size of the inner diameter of the standard ring gauge;
1.7 taking the measuring tool out of the ring gauge;
1.8 repeating the steps to check the measuring tool accurately;
the second step: measurement of parts
2.1 holding the hand-held grab handle (1) by a hand, hooking the moving amount arm (9) by a finger to close the movable measuring claw (8) and the fixed amount arm (4);
2.2, extending the movable measuring claw (8) and the fixed measuring arm (4) into a to-be-measured area of the part;
2.3, loosening a moving amount arm (9) hooked by the finger to open the movable measuring claw (8) to be in contact with the measured surface of the part;
2.4, shaking the measuring tool back and forth for several times, observing the reading condition of the dial indicator (15), and stopping shaking when the reading of the dial indicator (15) is minimum;
2.5 size calculation: the size of the element of the part to be measured = the diameter size of the standard ring gauge + the reading of the dial indicator (15) when measuring the part;
2.6 taking the measuring tool out of the part;
2.7 the measurement is finished.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210712201.9A CN115143865A (en) | 2022-06-22 | 2022-06-22 | Handheld inner hole measuring tool and using method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210712201.9A CN115143865A (en) | 2022-06-22 | 2022-06-22 | Handheld inner hole measuring tool and using method |
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| Publication Number | Publication Date |
|---|---|
| CN115143865A true CN115143865A (en) | 2022-10-04 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210712201.9A Pending CN115143865A (en) | 2022-06-22 | 2022-06-22 | Handheld inner hole measuring tool and using method |
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| Country | Link |
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| CN (1) | CN115143865A (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103335581A (en) * | 2013-06-24 | 2013-10-02 | 中国石油天然气集团公司 | Female adapter pitch diameter measurement instrument, pole, positioning sample board and pitch diameter measuring method |
| CN203642848U (en) * | 2013-12-12 | 2014-06-11 | 浙江双环传动机械股份有限公司 | Multifunctional caliper with meter |
| CN113008107A (en) * | 2021-03-05 | 2021-06-22 | 长春市春求科技开发有限公司 | Hole diameter detection device |
-
2022
- 2022-06-22 CN CN202210712201.9A patent/CN115143865A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103335581A (en) * | 2013-06-24 | 2013-10-02 | 中国石油天然气集团公司 | Female adapter pitch diameter measurement instrument, pole, positioning sample board and pitch diameter measuring method |
| CN203642848U (en) * | 2013-12-12 | 2014-06-11 | 浙江双环传动机械股份有限公司 | Multifunctional caliper with meter |
| CN113008107A (en) * | 2021-03-05 | 2021-06-22 | 长春市春求科技开发有限公司 | Hole diameter detection device |
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