CN110631492B - Device and method for detecting maximum diameter of arc-shaped groove of bearing outer ring - Google Patents
Device and method for detecting maximum diameter of arc-shaped groove of bearing outer ring Download PDFInfo
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- CN110631492B CN110631492B CN201910836612.7A CN201910836612A CN110631492B CN 110631492 B CN110631492 B CN 110631492B CN 201910836612 A CN201910836612 A CN 201910836612A CN 110631492 B CN110631492 B CN 110631492B
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- displacement sensor
- laser displacement
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- outer ring
- shaped groove
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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
- 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
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- Length Measuring Devices By Optical Means (AREA)
Abstract
The invention relates to a detection device, in particular to a device and a method for detecting the maximum diameter of an arc-shaped groove of a bearing outer ring.
Description
Technical Field
The invention relates to a detection device, in particular to a device and a method for detecting the maximum diameter of an arc-shaped groove of a bearing outer ring.
Background
In the large industrial 4.0 environment, bearings have been widely used in aerospace, precision machining, automobile manufacturing, and other industries. The bearing is used as a core component, and the assembly precision requirement among the outer ring, the balls, the inner ring and the retainer is high; the inner ring is a main part for placing the balls and has an arc surface structure, so that the maximum size of the inner ring is difficult to accurately detect, the outer ring can be detected by using measuring tools such as a micrometer, a common detection method of the inner ring can adopt an inner diameter micrometer to detect, but the detection precision is not high, the maximum size of the inner diameter is not easy to find, the detection by a manual detection method is also inaccurate, and the efficiency is low.
Disclosure of Invention
The invention provides a device and a method for detecting the maximum diameter of an arc-shaped groove of a bearing outer ring with high efficiency, aiming at solving the problem that the detection efficiency of the maximum diameter of the arc-shaped groove of the bearing outer ring is low in the prior art.
The technical scheme adopted by the invention for solving the technical problems is as follows:
the utility model provides a biggest footpath detection device of bearing inner race arc wall, includes the workstation, the workstation on be equipped with the fixed establishment that is used for the fixed bearing outer lane, the workstation on still be fixed with the support, the support on rotate and be equipped with first laser displacement sensor and second laser displacement sensor, the line of the light source projection point of first laser displacement sensor and second laser displacement sensor passes the central line point of bearing outer lane, first laser displacement sensor and second laser displacement sensor rotation center line are the water flat line.
Furthermore, a first stepping motor for driving the first laser displacement sensor to rotate and a second stepping motor for driving the second laser displacement sensor to rotate are fixed on the support.
Furthermore, the fixing mechanism comprises clamping cylinders positioned on two sides of the bearing outer ring.
Furthermore, the bracket is also provided with a proximity switch for detecting the outer ring of the bearing.
Furthermore, the light emitting points of the first laser displacement sensor and the second laser displacement sensor are positioned on the same horizontal line, so that the horizontal distance between the first laser displacement sensor and the second laser displacement sensor can be conveniently measured, and the calculation in the following detection method is facilitated.
A detection method of the device for detecting the maximum diameter of the arc-shaped groove of the bearing outer ring comprises the following steps:
step 1: the first stepping motor and the second stepping motor respectively drive the first laser displacement sensor and the second laser displacement sensor to rotate, the first laser displacement sensor and the second laser displacement sensor respectively rotate towards two sides, the first laser displacement sensor and the second laser displacement sensor illuminate in an arc-shaped groove of a bearing outer ring in the moving process, distance values from the first laser displacement sensor and the second laser displacement sensor to the arc-shaped groove on the corresponding side are obtained in real time, measured data are transmitted to an upper computer, an arc-shaped groove profile diagram is formed in the upper computer, and the position of the maximum inner diameter size point of the arc-shaped grooves on the two sides is obtained through the profile diagram;
step 2: respectively calculating the projection length of each connecting line in the horizontal direction through the length of the connecting line between the maximum point position of the inner diameter size of the arc-shaped groove corresponding to the two sides and the first laser displacement sensor and the second laser displacement sensor and the angle between each connecting line and the vertical direction;
and step 3: and summing the projection lengths of the two connecting lines in the horizontal direction, and adding the horizontal distance between the first laser displacement sensor and the second laser displacement sensor to obtain the maximum diameter size value of the arc-shaped groove of the bearing.
Has the advantages that: the invention adopts the laser displacement sensors to be positioned and installed on the rotating rod, the rotating rod is driven by the motor to carry out synchronous motion, the active light is irradiated on the inner ring to obtain each data and the size outline drawing of the inner ring, the position of the maximum point of the bevel edge of the inner ring is obtained through the outline drawing, the diameter of a part is calculated through the bevel edge and the angle, and the maximum diameter of the arc-shaped groove of the outer ring of the bearing is obtained through the sum of the fixed distance between the part and the two laser displacement sensors, thus the measurement is accurate and.
Drawings
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
FIG. 1 is a structural diagram of a device for detecting the maximum diameter of an arc-shaped groove of a bearing outer ring according to the present invention;
fig. 2 is a detection schematic.
The device comprises a workbench, a support, a first laser displacement sensor, a second laser displacement sensor, a first stepping motor, a second stepping motor, a clamping cylinder, a first stepping motor, a second stepping motor, a clamping cylinder, a proximity switch and a control unit, wherein the workbench comprises a base, a working table 2, a support 3, the first laser displacement sensor, the second laser displacement sensor, a first stepping motor, a second stepping motor, a clamping.
Detailed Description
According to the figures 1-2, the device for detecting the maximum diameter of the arc-shaped groove of the outer ring of the bearing comprises a workbench 1, a fixing mechanism for fixing the outer ring of the bearing is arranged on the workbench 1, a support 2 is further fixed on the workbench 1, a first laser displacement sensor 3 and a second laser displacement sensor 4 are arranged on the support 2 in a rotating mode, a connecting line of light source projection points of the first laser displacement sensor 3 and the second laser displacement sensor 4 penetrates through a center line point of the outer ring of the bearing, and the rotating center lines of the first laser displacement sensor 3 and the second laser displacement sensor 4 are horizontal lines.
A first stepping motor 5 for driving the first laser displacement sensor 3 to rotate and a second stepping motor 6 for driving the second laser displacement sensor 4 to rotate are fixed on the bracket 2.
The fixing mechanism comprises clamping cylinders 7 located on both sides of the bearing outer ring.
And the bracket 2 is also provided with a proximity switch 8 for detecting the outer ring of the bearing.
The light emitting points of the first laser displacement sensor 3 and the second laser displacement sensor 4 are positioned on the same horizontal line.
A detection method of the device for detecting the maximum diameter of the arc-shaped groove of the bearing outer ring comprises the following steps:
step 1: the first stepping motor 5 and the second stepping motor 6 respectively drive the first laser displacement sensor 3 and the second laser displacement sensor 4 to rotate, the first laser displacement sensor 3 and the second laser displacement sensor 4 respectively rotate towards two sides, the first laser displacement sensor 3 and the second laser displacement sensor 4 illuminate in an arc-shaped groove of the outer ring of the bearing in the moving process, distance values from the first laser displacement sensor 3 and the second laser displacement sensor 4 to the arc-shaped grooves on the corresponding sides are acquired in real time, measured data are transmitted to an upper computer, an arc-shaped groove profile diagram is formed in the upper computer, and the position of the maximum inner diameter size point of the arc-shaped grooves on two sides is obtained through the profile diagram;
step 2: calculating the projection length of each connecting line in the horizontal direction respectively according to the length of the connecting line between the maximum point position of the inner diameter size of the arc-shaped groove corresponding to the two sides and the first laser displacement sensor 3 and the second laser displacement sensor 4 and the angle a between each connecting line and the vertical direction;
and step 3: the projection lengths of the two connecting lines in the horizontal direction are summed, and the maximum diameter size of the arc-shaped groove of the bearing is obtained by adding the horizontal distance between the first laser displacement sensor 3 and the second laser displacement sensor 4.
It should be understood that the above-described specific embodiments are merely illustrative of the present invention and are not intended to limit the present invention. Obvious variations or modifications which are within the spirit of the invention are possible within the scope of the invention.
Claims (4)
1. The device for detecting the maximum diameter of the arc-shaped groove of the outer ring of the bearing is characterized by comprising a workbench (1), wherein a fixing mechanism for fixing the outer ring of the bearing is arranged on the workbench (1), a support (2) is further fixed on the workbench (1), a first laser displacement sensor (3) and a second laser displacement sensor (4) are rotatably arranged on the support (2), a connecting line of light source projection points of the first laser displacement sensor (3) and the second laser displacement sensor (4) penetrates through a center line point of the outer ring of the bearing, rotation center lines of the first laser displacement sensor (3) and the second laser displacement sensor (4) are horizontal lines, and light emitting points of the first laser displacement sensor (3) and the second laser displacement sensor (4) are positioned on the same horizontal line;
the detection device comprises the following steps during detection:
step 1: a first stepping motor (5) and a second stepping motor (6) respectively drive a first laser displacement sensor (3) and a second laser displacement sensor (4) to rotate, the first laser displacement sensor (3) and the second laser displacement sensor (4) respectively rotate towards two sides, the first laser displacement sensor (3) and the second laser displacement sensor (4) illuminate in an arc-shaped groove of a bearing outer ring in the moving process, the distance values from the first laser displacement sensor (3) and the second laser displacement sensor (4) to the arc-shaped grooves on the corresponding sides are obtained in real time, measured data are transmitted to an upper computer, an arc-shaped groove profile diagram is formed in the upper computer, and the position of the maximum point of the inner diameter size of the arc-shaped grooves on the two sides is obtained through the profile diagram;
step 2: respectively calculating the projection length of each connecting line in the horizontal direction through the length of the connecting line between the maximum point position of the inner diameter size of the arc-shaped groove corresponding to the two sides and the first laser displacement sensor (3) and the second laser displacement sensor (4) and the angle between each connecting line and the vertical direction;
and step 3: and summing the projection lengths of the two connecting lines in the horizontal direction, and adding the horizontal distance between the first laser displacement sensor (3) and the second laser displacement sensor (4) to obtain the maximum diameter size of the arc-shaped groove of the bearing.
2. The device for detecting the maximum diameter of the arc-shaped groove of the outer ring of the bearing according to claim 1, wherein: and a first stepping motor (5) for driving the first laser displacement sensor (3) to rotate and a second stepping motor (6) for driving the second laser displacement sensor (4) to rotate are fixed on the support (2).
3. The device for detecting the maximum diameter of the arc-shaped groove of the outer ring of the bearing according to claim 2, wherein: the fixing mechanism comprises clamping cylinders (7) positioned on two sides of the bearing outer ring.
4. The device for detecting the maximum diameter of the arc-shaped groove of the outer ring of the bearing according to claim 3, wherein: and the bracket (2) is also provided with a proximity switch (8) for detecting the outer ring of the bearing.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910836612.7A CN110631492B (en) | 2019-09-05 | 2019-09-05 | Device and method for detecting maximum diameter of arc-shaped groove of bearing outer ring |
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| CN201910836612.7A CN110631492B (en) | 2019-09-05 | 2019-09-05 | Device and method for detecting maximum diameter of arc-shaped groove of bearing outer ring |
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| CN110631492B true CN110631492B (en) | 2021-05-18 |
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