CN111380484A - Tread detection device based on wheel lathe is bored - Google Patents
Tread detection device based on wheel lathe is bored Download PDFInfo
- Publication number
- CN111380484A CN111380484A CN202010319876.8A CN202010319876A CN111380484A CN 111380484 A CN111380484 A CN 111380484A CN 202010319876 A CN202010319876 A CN 202010319876A CN 111380484 A CN111380484 A CN 111380484A
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- Prior art keywords
- wheel
- displacement sensor
- frame
- laser displacement
- turning
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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
- G01B11/24—Measuring arrangements characterised by the use of optical techniques for measuring contours or curvatures
- G01B11/2408—Measuring arrangements characterised by the use of optical techniques for measuring contours or curvatures for measuring roundness
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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
-
- 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
- G01B11/02—Measuring arrangements characterised by the use of optical techniques for measuring length, width or thickness
-
- 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
- G01B11/24—Measuring arrangements characterised by the use of optical techniques for measuring contours or curvatures
-
- 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
- G01B21/10—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 diameters
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Length Measuring Devices By Optical Means (AREA)
Abstract
The invention discloses a tread detection device based on a turning wheel machine tool, and belongs to the field of rail measurement. The wheel set turning detection device comprises a sliding frame, a first laser displacement sensor, a mounting frame, a second laser displacement sensor and a reflecting plate, wherein the sliding frame is used for being mounted on a sliding way of a turning machine tool, the first laser displacement sensor is arranged at the top end of the sliding frame, the mounting frame is arranged at the top end of the sliding frame and is positioned beside the first laser displacement sensor, the second laser displacement sensor is arranged on the mounting frame, the reflecting plate is arranged at the top end of the mounting frame and is inclined with the mounting frame, the detection end of the second laser displacement sensor is arranged towards the reflecting plate, and detection laser of the second laser displacement sensor is in contact with the back of the wheel after being refracted by the reflecting plate.
Description
Technical Field
The invention relates to the field of rail detection, in particular to a tread detection device based on a turning wheel machine tool.
Background
In recent years, with the continuous improvement of the running speed of trains in China, higher requirements on the running safety are put forward. The wheel set is used as an important part for the vehicle to walk and is directly related to the driving safety. The wheel set tread wear, equivalent taper change, polygon and other profile parameters are important indexes for determining the safe operation of the vehicle and are also important parameters for realizing the economic turning of the wheel set. At present, the detection of the turning machine tool on the parameters mainly depends on a contact device, but the contact device is seriously abraded in the using process, an approximate method is adopted when the outline curve of the wheel pair is processed, certain deviation exists in the calculation precision, and the precision is lower.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides a tread detection device based on a turning wheel machine tool, and the specific technical scheme is as follows:
the utility model provides a tread detection device based on machine tool of turning round a lathe, including being used for installing the carriage on turning round a lathe slide, set up the first laser displacement sensor at the carriage top, the setting is at the carriage top and be located the mounting bracket of first laser displacement sensor side, set up the second laser displacement sensor on the mounting bracket and set up at the mounting bracket top and with the reflecting plate of mounting bracket slope, the sense terminal of second laser displacement sensor sets up towards the reflecting plate, and the detection laser of second laser displacement sensor through the reflecting plate refraction back with turn round a lathe tool contact.
Preferably, the sliding frame is provided with a wheel diameter measuring frame, and the wheel diameter measuring frame is provided with a wheel diameter measuring wheel rotatably connected with the wheel diameter measuring frame.
In the invention, a tester contacts the wheel diameter measuring wheel with the molded surface of the wheel pair, the wheel diameter measuring wheel rotates along with the wheel pair when the molded surface of the wheel pair rotates, and the circumference of the wheel pair and the radius of the wheel pair in the turning process can be obtained by recording the rotating number of turns of the wheel diameter measuring wheel when the wheel pair rotates for one turn.
Preferably, the wheel diameter measuring frame is provided with a rotary encoder coaxially connected to the wheel diameter measuring wheel.
The rotary encoder is arranged on the wheel diameter measuring frame and is coaxially connected with the wheel diameter measuring wheel, so that the number of rotating circles of the wheel diameter measuring wheel can be automatically recorded in the process that the wheel diameter measuring wheel rotates along with the wheel set, the labor intensity of testing personnel is reduced, and the detection precision of the wheel diameter change detection in the wheel set turning process is improved.
Preferably, the wheel diameter measuring frame includes a wheel diameter main frame provided on the sliding frame, and a wheel diameter sub frame provided on the wheel diameter main frame and slidably connected to the wheel diameter main frame, and the wheel diameter measuring wheel is provided on the wheel diameter sub frame.
According to the invention, the wheel diameter main frame is matched with the wheel diameter auxiliary frame in a sliding connection manner, so that the wheel diameter measuring wheel can be adjusted according to the position of the wheel pair in the wheel pair radius measuring process.
Preferably, a reflector layer is arranged on one side of the reflector plate close to the second laser displacement sensor.
According to the invention, the reflector surface layer is arranged on one side of the reflector plate close to the second laser displacement sensor, so that the reflection efficiency of the reflector plate on the detection laser of the second laser displacement sensor is improved, and the problems of detection laser detection failure, low detection precision and the like caused by overlarge scattering of the reflector plate in the detection process of the second laser displacement sensor are avoided.
Preferably, the detection end of the first laser displacement sensor is arranged towards the wheel set.
The detection end of the first laser displacement sensor faces the wheel set and is used for measuring the profile and the out-of-roundness of the wheel set.
Preferably, the mounting rack comprises a first support arranged on the sliding rack and a second support arranged on the first support and detachably connected with the first support, and the second laser displacement sensor is arranged on the second support.
Preferably, the sliding frame is slidably connected to the lathe slide.
The sliding frame is arranged on the turning lathe slideway and is in sliding connection with the turning lathe slideway, so that a tester can slide the sliding frame along the turning lathe slideway to adjust the position according to the specific position of the wheel pair in the measurement process, the optimal detection position is reached for detection, and the detection accuracy and convenience of the invention are improved.
Preferably, the inclination angle of the reflection plate and the mounting frame is 135 degrees.
The invention has the following beneficial effects:
according to the invention, the second laser displacement sensor arranged on the mounting frame detects that laser is refracted by the reflecting plate and then contacts with the wheel back, so that the measurement and judgment of the relative distance between the turning wheel tool and the wheel pair are realized under the condition of not influencing the normal work of the turning wheel tool. Meanwhile, the first laser displacement sensor is arranged at the top end of the sliding frame, and the measuring end of the first laser displacement sensor is arranged towards the profile of the wheel pair, so that the profile of the wheel pair and the out-of-roundness of the wheel pair are measured under the condition of not contacting the profile of the wheel pair, and the problem that the existing measuring device is seriously abraded is solved. The wheel set turning detection device adopts the digital laser sensor to detect the overall dimension of the wheel set, has the characteristics of reliable structure, high precision, complete functions and the like, and simultaneously combines the structural characteristics of a turning machine tool to effectively realize turning and detection of the wheel set and provide reliable data support for an economic turning strategy of the wheel set.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a front view of the present invention;
fig. 3 is a side view of the present invention.
Detailed Description
The principles and features of this invention are described below in conjunction with the following drawings, which are set forth by way of illustration only and are not intended to limit the scope of the invention.
Examples
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus once an item is defined in one figure, it is not further defined and explained by advocate in subsequent figures.
In the description of the present invention, it should be noted that the terms "first", "second", and the like are used only for distinguishing the description, and are not intended to indicate or imply relative importance.
In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "communicating," "connected," and "connected" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Some embodiments of the invention are described in detail below with reference to the accompanying drawings. The embodiments described below and the features of the embodiments can be combined with each other without conflict.
Referring to fig. 1 to 3, the invention comprises a sliding frame 1 for mounting on a lathe slide and a first laser displacement sensor 2 arranged at the top end of the sliding frame 1, wherein the sliding frame 1 is arranged on the lathe slide and is in sliding connection with the lathe slide, so that a tester can slide the sliding frame 1 along the lathe slide to perform position adjustment according to the specific position of a wheel pair during measurement so as to achieve an optimal detection position for detection, and the detection accuracy and convenience of the invention are improved. The detection end of the first laser displacement sensor 2 is arranged towards the wheel set and is used for measuring the profile and the out-of-roundness of the wheel set. According to the invention, the first laser displacement sensor 2 is arranged at the top end of the sliding frame 1, and the measuring end of the first laser displacement sensor 2 is arranged towards the wheel pair profile, so that the wheel pair profile and the out-of-roundness of the wheel pair are measured under the condition of not contacting the wheel pair profile, and the problem of serious abrasion of the existing measuring device is solved.
Referring to fig. 1, a mounting frame 3 is arranged at the top end of the sliding frame 1 and beside the first laser displacement sensor 2, a second laser displacement sensor 4 is arranged at one side of the mounting frame 3 close to the turning tool, and the second laser displacement sensor 4 is used for measuring the relative distance between the turning tool and the wheel pair. The top of mounting bracket 3 is equipped with reflecting plate 5 that is used for reflecting second laser displacement sensor 4 detection laser. The reflecting plate 5 and the mounting plate are obliquely arranged, the inclination angle of the reflecting plate 5 and the mounting frame 3 is 135 degrees, and detection laser of the second laser displacement sensor 4 is refracted by the reflecting plate 5 and then is contacted with the turning tool. In the invention, the second laser displacement sensor 4 arranged on the mounting frame 3 detects that the laser is refracted by the reflecting plate 5 and then is contacted with the turning tool on the turning machine tool, thereby realizing the measurement and judgment of the relative distance between the turning tool and the wheel pair under the condition of not influencing the normal work of the turning tool.
Referring to fig. 1 to 2, a reflector surface layer 51 is arranged on one side of the reflector 5 close to the second laser displacement sensor 4, and according to the invention, the reflector surface layer 51 is arranged on one side of the reflector 5 close to the second laser displacement sensor 4, so that the reflection efficiency of the reflector 5 on the laser detected by the second laser displacement sensor 4 is improved, and the problems of detection laser detection failure, low detection precision and the like caused by over-scattering of the reflector 5 in the detection process of the second laser displacement sensor 4 are avoided. Meanwhile, the mounting frame 3 comprises a first support 31 arranged on the sliding frame 1 and a second support 32 arranged on the first support 31 and detachably connected with the first support, and the second laser displacement sensor 4 is arranged on the second support 32.
The models of the first laser displacement sensor 2 and the second laser displacement sensor 4 are CD22-35-485C, the reference distance is 35mm, the measurement distance is 20-50 mm, the adopted light source is red semiconductor laser with the wavelength of 655nm (visible light), the output is 0.39mW, the bright spot range (in the reference distance) is about 0.45 × 0.8.8 mm, the linearity is +/-0.1% F.S., the sampling period is 0.5/1/2/4ms (4-level variable), the laser displacement sensor emits visible laser to the surface of an object to be measured through a lens, the laser scattered by the surface of the object to be measured passes through a receiver lens and is received by an internal CCD linear camera, the light spot can be seen by the CCD linear camera under different angles according to different distances, and the distance between the laser displacement sensor and the object to be measured can be calculated according to the angle and the known distance between the laser and the camera.
Referring to fig. 2 to 3, a wheel diameter measuring frame 6 is arranged on the sliding frame 1 and beside the mounting frame 3, a wheel diameter measuring wheel 7 rotatably connected with the wheel diameter measuring frame 6 is arranged on the wheel diameter measuring frame 6, and the wheel diameter measuring wheel 7 is used for measuring the perimeter of the wheel pair and calculating the radius of the wheel pair. In the invention, a tester makes the wheel diameter measuring wheel 7 contact with the profile of the wheel pair, the wheel diameter measuring wheel 7 rotates along with the wheel pair when the profile of the wheel pair rotates, and the circumference of the wheel pair and the radius of the wheel pair in the turning process can be obtained by recording the number of turns of the wheel diameter measuring wheel 7 when the wheel pair rotates for one turn. The wheel diameter measuring frame 6 is provided with the rotary encoder 8 coaxially connected with the wheel diameter measuring wheel 7, the rotary encoder 8 which is arranged on the wheel diameter measuring frame 6 and coaxially connected with the wheel diameter measuring wheel 7 can automatically record the number of rotation turns of the wheel diameter measuring wheel 7 in the process that the wheel diameter measuring wheel 7 rotates along with the wheel pair, the labor intensity of testers is reduced, and the detection precision of the wheel diameter change detection in the wheel pair turning process is improved.
Referring to fig. 2, the wheel diameter measuring stand 6 includes a wheel diameter main stand 61 provided on the sliding stand 1, and a wheel diameter sub-stand 62 provided on the wheel diameter main stand 61 and slidably connected to the wheel diameter main stand 61, and the wheel diameter measuring wheel 7 is provided on the wheel diameter sub-stand 62. According to the invention, the wheel diameter main frame 61 is matched with the wheel diameter auxiliary frame 62 in a sliding connection manner, so that the wheel diameter measuring wheel 7 can be adjusted according to the position of a wheel pair in the wheel pair radius measuring process. A return spring is arranged in the wheel diameter main frame 61 and between the bottom side of the wheel diameter auxiliary frame 62 and the wheel diameter main frame 61, and the return spring arranged between the bottom side of the wheel diameter auxiliary frame 62 and the wheel diameter main frame 61 in the invention can always directly contact with the molded surface of the wheel pair in the wheel pair radius measuring process through the self elasticity of the return spring, thereby ensuring the measuring function and the measuring precision of the wheel diameter measuring wheel 7.
According to the invention, the second laser displacement sensor 4 arranged on the mounting frame 3 is used for detecting that the laser is refracted by the reflecting plate 5 and then contacts with the wheel back, so that the measurement and judgment of the relative distance between the turning wheel tool and the wheel pair are realized under the condition that the normal work of the turning wheel tool is not influenced. Meanwhile, the first laser displacement sensor 2 is arranged at the top end of the sliding frame 1, and the measuring end of the first laser displacement sensor 2 is arranged towards the wheel pair profile, so that the wheel pair profile and the out-of-roundness of the wheel pair are measured under the condition of not contacting the wheel pair profile, and the problem of serious abrasion of the conventional measuring device is solved. The wheel set turning detection device adopts the digital laser sensor to detect the overall dimension of the wheel set, has the characteristics of reliable structure, high precision, complete functions and the like, and simultaneously combines the structural characteristics of a turning machine tool to effectively realize turning and detection of the wheel set and provide reliable data support for an economic turning strategy of the wheel set.
It is to be noted that, in this document, the terms "comprises", "comprising" or any other variation thereof are intended to cover a non-exclusive inclusion, so that an article or apparatus including a series of elements includes not only those elements but also other elements not explicitly listed or inherent to such article or apparatus. Without further limitation, an element defined by the phrase "comprising … …" does not exclude the presence of additional like elements in the article or device comprising the element.
The present invention is not limited to the above preferred embodiments, and any modifications, equivalent replacements, improvements, etc. within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (9)
1. The utility model provides a tread detection device based on turning round lathe, its characterized in that, including being used for installing carriage (1) on turning round lathe slide, setting up first laser displacement sensor (2) on carriage (1) top, setting up mounting bracket (3) on carriage (1) top and lie in first laser displacement sensor (2) side, second laser displacement sensor (4) and setting on mounting bracket (3) top and with mounting bracket (3) inclined reflecting plate (5), the sense terminal of second laser displacement sensor (4) sets up towards reflecting plate (5), and the detection laser of second laser displacement sensor (4) contact with the wheel back of the body after reflecting plate (5) refract.
2. The turning-wheel-based tread detection device according to claim 1, wherein the carriage (1) is provided with a wheel diameter measuring frame (6), and the wheel diameter measuring frame (6) is provided with a wheel diameter measuring wheel (7) rotatably connected with the wheel diameter measuring frame.
3. A tread detecting device of a turning-wheel-based machine tool according to claim 2, wherein the wheel diameter measuring frame (6) is provided with a rotary encoder (8) coaxially connected with the wheel diameter measuring wheel (7).
4. The turning-wheel-based tread detecting device according to claim 3, wherein the wheel diameter measuring frame (6) comprises a wheel diameter main frame (61) provided on the sliding frame (1) and a wheel diameter auxiliary frame (62) provided on the wheel diameter main frame (61) and slidably connected with the wheel diameter main frame (61), and the wheel diameter measuring wheel (7) is provided on the wheel diameter auxiliary frame (62).
5. The tread detecting device of a turning lathe according to claim 1, wherein the side of the reflector plate (5) close to the second laser displacement sensor (4) is provided with a reflector layer (51).
6. A tread detection device for a turning lathe according to claim 1, wherein the detection end of the first laser displacement sensor (2) is disposed toward the wheel pair.
7. The tread detecting device of a turning-lathe based machine tool according to claim 1, wherein the mounting frame (3) comprises a first bracket (31) arranged on the sliding frame (1) and a second bracket (32) arranged on the first bracket (31) and detachably connected with the first bracket, and the second laser displacement sensor (4) is arranged on the second bracket (32).
8. The tread detection device of a lathe-based machine tool according to claim 1, wherein the carriage (1) is slidably connected to a lathe slide.
9. Tread detection device of a turning-wheel-based machine tool according to claim 1, characterized in that the angle of inclination of the reflection plate (5) to the mounting frame (3) is 135 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010319876.8A CN111380484A (en) | 2020-04-22 | 2020-04-22 | Tread detection device based on wheel lathe is bored |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010319876.8A CN111380484A (en) | 2020-04-22 | 2020-04-22 | Tread detection device based on wheel lathe is bored |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111380484A true CN111380484A (en) | 2020-07-07 |
Family
ID=71217789
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010319876.8A Pending CN111380484A (en) | 2020-04-22 | 2020-04-22 | Tread detection device based on wheel lathe is bored |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111380484A (en) |
-
2020
- 2020-04-22 CN CN202010319876.8A patent/CN111380484A/en active Pending
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