CN110887456A - Device and method capable of carrying out online detection on roundness of large cylinder - Google Patents
Device and method capable of carrying out online detection on roundness of large cylinder Download PDFInfo
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- CN110887456A CN110887456A CN201911353977.0A CN201911353977A CN110887456A CN 110887456 A CN110887456 A CN 110887456A CN 201911353977 A CN201911353977 A CN 201911353977A CN 110887456 A CN110887456 A CN 110887456A
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- large cylinder
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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
- G01B21/00—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant
- G01B21/20—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant for measuring contours or curvatures, e.g. determining profile
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Abstract
The invention provides a device and a method capable of detecting the roundness of a large cylinder on line, wherein the device comprises a base, two sets of carrier roller supports, two carrier rollers, two transmission motors, a distance measuring sensor, a Hall switch sensor and an upper computer; the beneficial technical effects of the invention are as follows: the scheme can carry out on-line detection on the roundness of the large cylinder and is particularly suitable for industrial fields.
Description
Technical Field
The invention relates to a roundness detection technology, in particular to a device and a method capable of detecting the roundness of a large cylinder on line.
Background
The large-sized cylindrical parts are widely applied to the industrial fields of heavy machinery, aerospace, war industry and the like, and the shape precision of the parts directly influences the performance of the device. At present, common roundness detection device mainly has three-coordinate machine and roundness appearance, but has the problem that equipment is expensive, measurement cost is high mostly, and moreover, three-coordinate machine and roundness appearance all have higher requirement to operational environment, all need set up solitary measurement room usually, are unsuitable at the on-line measuring of production site, and to the great large-scale drum of diameter, prior art still has the operation degree of difficulty big or the unable problem of measuring.
Disclosure of Invention
Aiming at the problems in the background art, the invention provides a device capable of carrying out online detection on the roundness of a large cylinder, which is innovative in that: the device comprises a base, two sets of carrier roller supports, two carrier rollers, two transmission motors, a distance measuring sensor, a Hall switch sensor and an upper computer;
the carrier roller support is arranged on the base; the carrier rollers are arranged on the carrier roller supports, and the two carrier rollers correspond to the two sets of carrier roller supports one by one; the axial directions of the two carrier rollers are parallel to each other, and the end surfaces of the two carrier rollers are flush; the shell of the transmission motor is arranged on the carrier roller support, an output shaft of the transmission motor is in transmission connection with the end part of the carrier roller, and the two transmission motors correspond to the two carrier rollers one by one; the distance measuring sensor is arranged on the first support, and the output end of the distance measuring sensor is electrically connected with the upper computer; the Hall switch sensor is arranged on the second support, and the output end of the Hall switch sensor is electrically connected with the upper computer;
when the large-scale cylinder to be detected is placed on the two carrier rollers, the axial direction of the large-scale cylinder is parallel to the axial direction of the carrier rollers, the first support enables the ranging sensor to hover outside or in the inner cavity of the large-scale cylinder, the second support enables the Hall switch sensor to hover outside or in the inner cavity of the large-scale cylinder, and the large-scale cylinder is provided with a magnet matched with the Hall switch sensor.
In order to make the device capable of adapting to large cylinders with different diameters, the invention also provides the following preferable scheme: the base is provided with a slide rail, the carrier roller supports are arranged on the slide rail, and the distance between the two sets of carrier roller supports can be adjusted through the slide rail. During specific implementation, a locking device is required to be arranged between the carrier roller support and the sliding rail, so that the carrier roller support can be locked at a corresponding position.
Based on the device, the invention also provides a method for measuring the roundness of the large cylinder on line, and the related hardware is as described above; the method comprises the following steps: placing a large cylinder on two carrier rollers, enabling a ranging sensor to hover on the outer side or in an inner cavity of the large cylinder through a first support, enabling a Hall switch sensor to hover on the outer side or in the inner cavity of the large cylinder through a second support, and then arranging a magnet on the large cylinder, wherein the position of the magnet corresponds to that of the Hall switch sensor; then, the carrier roller is driven to rotate by a transmission motor, so that the large cylinder rotates at a constant speed;
in the rotating process of the large cylinder, when the Hall switch sensor senses the magnetic field of the magnet, the Hall switch sensor outputs a trigger signal to the upper computer, and the upper computer determines a time point according to the trigger signal; recording the process between two continuous time points as a detection period; in the rotating process of the large cylinder, the distance measuring sensor continuously detects the spacing distance between the distance measuring sensor and the large cylinder, the detected signal is transmitted to an upper computer in real time, and the upper computer processes the output signal of the distance measuring sensor to obtain a distance parameter; a plurality of distance parameters corresponding to a single detection period are recorded as a parameter group; the hovering position of the distance measuring sensor is recorded as a detection position, a plurality of detection positions are arranged along the axial direction of the large cylinder, and the distance measuring sensor acquires two parameter sets at each detection position;
the upper computer identifies two parameter sets governed by a single detection position, and considers that the roundness of the corresponding area on the large cylinder meets the requirement when the two conditions are met:
recording a distance parameter governed by one parameter group as a first parameter, recording a distance parameter governed by the other parameter group as a second parameter, wherein the first parameters and the second parameters are in one-to-one correspondence in time sequence, and the first parameter and the second parameter which correspond to the time sequence are recorded as a parameter pair;
the method comprises the following steps that firstly, the difference between the maximum value and the minimum value in a plurality of first parameters is within an error range, and the difference between the maximum value and the minimum value in a plurality of second parameters is within the error range;
the difference between any parameter and the governed parameter I and parameter II is within an error range;
when the roundness of the outer peripheral surface of the large cylinder is measured, the ranging sensor hovers outside the large cylinder; when the roundness of the inner peripheral surface of the large cylinder is measured, the ranging sensor hovers in the inner cavity of the large cylinder;
the diameter of the large cylinder is greater than or equal to 1 meter.
Compared with the existing detection equipment, the device has the advantages of simple structure and simple operation, can be directly arranged on a production site, can carry the produced product to the device for online detection, and is very suitable for industrial site detection.
The beneficial technical effects of the invention are as follows: the scheme can carry out on-line detection on the roundness of the large cylinder and is particularly suitable for industrial fields.
Drawings
FIG. 1 is a first schematic structural diagram of the present invention;
FIG. 2 is a second schematic structural view of the present invention;
the names corresponding to each mark in the figure are respectively: the device comprises a base 1, a carrier roller support 2, a carrier roller 3, a transmission motor 4, a distance measuring sensor 5, a Hall switch sensor 6, an upper computer 7, a magnet 8 and a large cylinder 9.
Detailed Description
The utility model provides a can carry out on-line measuring's device to the circularity of large-scale drum, its innovation lies in: the device comprises a base 1, two sets of carrier roller supports 2, two carrier rollers 3, two transmission motors 4, a distance measuring sensor 5, a Hall switch sensor 6 and an upper computer 7;
the carrier roller support 2 is arranged on the base 1; the carrier rollers 3 are arranged on the carrier roller supports 2, and the two carrier rollers 3 correspond to the two sets of carrier roller supports 2 one by one; the axial directions of the two carrier rollers 3 are parallel to each other, and the end surfaces of the two carrier rollers 3 are flush; the shell of the transmission motor 4 is arranged on the carrier roller support 2, the output shaft of the transmission motor 4 is in transmission connection with the end part of the carrier roller 3, and the two transmission motors 4 correspond to the two carrier rollers 3 one by one; the distance measuring sensor 5 is arranged on the first support, and the output end of the distance measuring sensor 5 is electrically connected with the upper computer 7; the Hall switch sensor 6 is arranged on the second bracket, and the output end of the Hall switch sensor 6 is electrically connected with the upper computer 7;
when a large cylinder to be detected is placed on the two carrier rollers 3, the axial direction of the large cylinder is parallel to the axial direction of the carrier rollers 3, the first support enables the distance measuring sensor 5 to hover outside or in the inner cavity of the large cylinder, the second support enables the Hall switch sensor 6 to hover outside or in the inner cavity of the large cylinder, and a magnet matched with the Hall switch sensor 6 is arranged on the large cylinder. During specific implementation, the magnet can be arranged on the outer wall of the large cylinder, can also be arranged on the inner wall of the large cylinder, and only when the magnet is arranged on the outer wall, the corresponding groove needs to be arranged on the carrier roller 3 to prevent the carrier roller 3 and the magnet from interfering.
Further, a slide rail is arranged on the base 1, the carrier roller supports 2 are arranged on the slide rail, and the distance between the two sets of carrier roller supports 2 can be adjusted through the slide rail.
A method for measuring the roundness of a large cylinder on line relates to hardware comprising: the device comprises a base 1, two sets of carrier roller supports 2, two carrier rollers 3, two transmission motors 4, a distance measuring sensor 5, a Hall switch sensor 6 and an upper computer 7;
the carrier roller support 2 is arranged on the base 1; the carrier rollers 3 are arranged on the carrier roller supports 2, and the two carrier rollers 3 correspond to the two sets of carrier roller supports 2 one by one; the axial directions of the two carrier rollers 3 are parallel to each other, and the end surfaces of the two carrier rollers 3 are flush; the shell of the transmission motor 4 is arranged on the carrier roller support 2, the output shaft of the transmission motor 4 is in transmission connection with the end part of the carrier roller 3, and the two transmission motors 4 correspond to the two carrier rollers 3 one by one; the distance measuring sensor 5 is arranged on the first support, and the output end of the distance measuring sensor 5 is electrically connected with the upper computer 7; the Hall switch sensor 6 is arranged on the second bracket, and the output end of the Hall switch sensor 6 is electrically connected with the upper computer 7;
when a large cylinder to be detected is placed on the two carrier rollers 3, the axial direction of the large cylinder is parallel to the axial direction of the carrier rollers 3, the first support enables the ranging sensor 5 to hover outside or in the inner cavity of the large cylinder, the second support enables the hall switch sensor 6 to hover outside or in the inner cavity of the large cylinder, and the large cylinder is provided with a magnet matched with the hall switch sensor 6;
the innovation lies in that: the method comprises the following steps: placing a large cylinder on two carrier rollers 3, enabling a distance measuring sensor 5 to hover on the outer side or in an inner cavity of the large cylinder through a first support, enabling a Hall switch sensor 6 to hover on the outer side or in the inner cavity of the large cylinder through a second support, and then arranging a magnet on the large cylinder, wherein the position of the magnet corresponds to that of the Hall switch sensor 6; then, the carrier roller 3 is driven to rotate by the transmission motor 4, so that the large cylinder rotates at a constant speed;
in the rotating process of the large cylinder, when the Hall switch sensor 6 senses the magnetic field of the magnet, the Hall switch sensor 6 outputs a trigger signal to the upper computer 7, and the upper computer 7 determines a time point according to the trigger signal; recording the process between two continuous time points as a detection period; in the rotating process of the large cylinder, the distance measuring sensor 5 continuously detects the distance between the distance measuring sensor 5 and the large cylinder, the detected signal is transmitted to the upper computer 7 in real time, and the upper computer 7 processes the output signal of the distance measuring sensor 5 to obtain a distance parameter; a plurality of distance parameters corresponding to a single detection period are recorded as a parameter group; the hovering position of the distance measuring sensor 5 is recorded as a detection position, a plurality of detection positions are arranged along the axial direction of the large cylinder, and the distance measuring sensor 5 acquires two parameter sets at each detection position;
the upper computer 7 identifies two parameter sets governed by a single detection position, and considers that the roundness of the corresponding area on the large cylinder meets the requirements when the two conditions are met:
recording a distance parameter governed by one parameter group as a first parameter, recording a distance parameter governed by the other parameter group as a second parameter, wherein the first parameters and the second parameters are in one-to-one correspondence in time sequence, and the first parameter and the second parameter which correspond to the time sequence are recorded as a parameter pair;
the method comprises the following steps that firstly, the difference between the maximum value and the minimum value in a plurality of first parameters is within an error range, and the difference between the maximum value and the minimum value in a plurality of second parameters is within the error range;
the difference between any parameter and the governed parameter I and parameter II is within an error range;
when the roundness of the outer peripheral surface of the large cylinder is measured, the distance measuring sensor 5 hovers outside the large cylinder; when the roundness of the inner peripheral surface of the large cylinder is measured, the distance measuring sensor 5 hovers in the inner cavity of the large cylinder;
the diameter of the large cylinder is greater than or equal to 1 meter.
Claims (3)
1. The utility model provides a can carry out on-line measuring's device to the circularity of large-scale drum which characterized in that: the device comprises a base (1), two sets of carrier roller supports (2), two carrier rollers (3), two transmission motors (4), a distance measuring sensor (5), a Hall switch sensor (6) and an upper computer (7);
the carrier roller support (2) is arranged on the base (1); the carrier rollers (3) are arranged on the carrier roller supports (2), and the two carrier rollers (3) correspond to the two sets of carrier roller supports (2) one by one; the axial directions of the two carrier rollers (3) are parallel to each other, and the end surfaces of the two carrier rollers (3) are flush; the shell of the transmission motor (4) is arranged on the carrier roller support (2), the output shaft of the transmission motor (4) is in transmission connection with the end part of the carrier roller (3), and the two transmission motors (4) correspond to the two carrier rollers (3) one by one; the distance measuring sensor (5) is arranged on the first support, and the output end of the distance measuring sensor (5) is electrically connected with the upper computer (7); the Hall switch sensor (6) is arranged on the second support, and the output end of the Hall switch sensor (6) is electrically connected with the upper computer (7);
when a large cylinder to be detected is placed on the two carrier rollers (3), the axial direction of the large cylinder is parallel to the axial direction of the carrier rollers (3), the first support enables the distance measuring sensor (5) to hover at the outer side or in the inner cavity of the large cylinder, the second support enables the Hall switch sensor (6) to hover at the outer side or in the inner cavity of the large cylinder, and a magnet matched with the Hall switch sensor (6) is arranged on the large cylinder.
2. The apparatus for on-line detection of roundness of a large cylinder according to claim 1, wherein: the roller support is characterized in that a sliding rail is arranged on the base (1), the carrier roller supports (2) are arranged on the sliding rail, and the distance between the two sets of carrier roller supports (2) can be adjusted through the sliding rail.
3. A method for measuring the roundness of a large cylinder on line relates to hardware comprising: the device comprises a base (1), two sets of carrier roller supports (2), two carrier rollers (3), two transmission motors (4), a distance measuring sensor (5), a Hall switch sensor (6) and an upper computer (7);
the carrier roller support (2) is arranged on the base (1); the carrier rollers (3) are arranged on the carrier roller supports (2), and the two carrier rollers (3) correspond to the two sets of carrier roller supports (2) one by one; the axial directions of the two carrier rollers (3) are parallel to each other, and the end surfaces of the two carrier rollers (3) are flush; the shell of the transmission motor (4) is arranged on the carrier roller support (2), the output shaft of the transmission motor (4) is in transmission connection with the end part of the carrier roller (3), and the two transmission motors (4) correspond to the two carrier rollers (3) one by one; the distance measuring sensor (5) is arranged on the first support, and the output end of the distance measuring sensor (5) is electrically connected with the upper computer (7); the Hall switch sensor (6) is arranged on the second support, and the output end of the Hall switch sensor (6) is electrically connected with the upper computer (7);
when a large cylinder to be detected is placed on the two carrier rollers (3), the axial direction of the large cylinder is parallel to the axial direction of the carrier rollers (3), the first support enables the ranging sensor (5) to hover at the outer side or in the inner cavity of the large cylinder, the second support enables the Hall switch sensor (6) to hover at the outer side or in the inner cavity of the large cylinder, and a magnet matched with the Hall switch sensor (6) is arranged on the large cylinder;
the method is characterized in that: the method comprises the following steps: placing the large cylinder on two carrier rollers (3), enabling a distance measuring sensor (5) to hover outside or in an inner cavity of the large cylinder through a first support, enabling a Hall switch sensor (6) to hover outside or in the inner cavity of the large cylinder through a second support, and then arranging a magnet on the large cylinder, wherein the position of the magnet corresponds to that of the Hall switch sensor (6); then, the carrier roller (3) is driven to rotate by the transmission motor (4), so that the large cylinder rotates at a constant speed;
in the rotating process of the large cylinder, when the Hall switch sensor (6) senses the magnetic field of the magnet, the Hall switch sensor (6) outputs a trigger signal to the upper computer (7), and the upper computer (7) determines a time point according to the trigger signal; recording the process between two continuous time points as a detection period; in the rotating process of the large cylinder, the distance measuring sensor (5) continuously detects the spacing distance between the distance measuring sensor (5) and the large cylinder, the detected signal is transmitted to the upper computer (7) in real time, and the upper computer (7) processes the output signal of the distance measuring sensor (5) to obtain a distance parameter; a plurality of distance parameters corresponding to a single detection period are recorded as a parameter group; the hovering position of the distance measuring sensor (5) is recorded as a detection position, a plurality of detection positions are arranged along the axial direction of the large cylinder, and the distance measuring sensor (5) acquires two parameter sets at each detection position;
the upper computer (7) identifies two parameter sets governed by a single detection position, and considers that the roundness of the corresponding area on the large cylinder meets the requirement when the two conditions are met:
recording a distance parameter governed by one parameter group as a first parameter, recording a distance parameter governed by the other parameter group as a second parameter, wherein the first parameters and the second parameters are in one-to-one correspondence in time sequence, and the first parameter and the second parameter which correspond to the time sequence are recorded as a parameter pair;
the method comprises the following steps that firstly, the difference between the maximum value and the minimum value in a plurality of first parameters is within an error range, and the difference between the maximum value and the minimum value in a plurality of second parameters is within the error range;
the difference between any parameter and the governed parameter I and parameter II is within an error range;
when the roundness of the outer peripheral surface of the large cylinder is measured, the distance measuring sensor (5) hovers outside the large cylinder; when the roundness of the inner peripheral surface of the large cylinder is measured, the distance measuring sensor (5) hovers in the inner cavity of the large cylinder;
the diameter of the large cylinder is greater than or equal to 1 meter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911353977.0A CN110887456A (en) | 2019-12-25 | 2019-12-25 | Device and method capable of carrying out online detection on roundness of large cylinder |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201911353977.0A CN110887456A (en) | 2019-12-25 | 2019-12-25 | Device and method capable of carrying out online detection on roundness of large cylinder |
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| CN110887456A true CN110887456A (en) | 2020-03-17 |
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| CN201911353977.0A Pending CN110887456A (en) | 2019-12-25 | 2019-12-25 | Device and method capable of carrying out online detection on roundness of large cylinder |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112013778A (en) * | 2020-09-11 | 2020-12-01 | 焦作大学 | Online detection system and method for processing precision of cylinder sleeve |
| CN113124776A (en) * | 2021-04-16 | 2021-07-16 | 彭美芬 | Detection method based on automatic detection robot for surface of vehicle half shaft |
-
2019
- 2019-12-25 CN CN201911353977.0A patent/CN110887456A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112013778A (en) * | 2020-09-11 | 2020-12-01 | 焦作大学 | Online detection system and method for processing precision of cylinder sleeve |
| CN112013778B (en) * | 2020-09-11 | 2021-10-08 | 焦作大学 | Online detection system and method for processing precision of cylinder sleeve |
| CN113124776A (en) * | 2021-04-16 | 2021-07-16 | 彭美芬 | Detection method based on automatic detection robot for surface of vehicle half shaft |
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