CN112378347B - Large-scale bearing ring cylindricity measuring instrument - Google Patents
Large-scale bearing ring cylindricity measuring instrument Download PDFInfo
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- CN112378347B CN112378347B CN202011219508.2A CN202011219508A CN112378347B CN 112378347 B CN112378347 B CN 112378347B CN 202011219508 A CN202011219508 A CN 202011219508A CN 112378347 B CN112378347 B CN 112378347B
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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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Abstract
The invention relates to a bearing cylindricity measuring instrument, in particular to a large-scale bearing ring cylindricity measuring instrument. The device comprises a telescopic gauge stand, a base platform, a numerical control air floating platform, a mounting base, a buffer device and a Z-axis upright post, wherein the mounting base and the buffer device are alternately arranged on the base platform at intervals along the circumferential direction; the numerical control air floating platform is arranged on the basic platform; the Z-axis upright column is arranged on the numerical control air floating platform; the telescopic meter frame is arranged on the Z-axis upright post; the numerical control air floatation platform is used for driving the telescopic meter frame to rotate, so that the cylindricity of the bearing ring placed on the placement base is measured. The invention avoids the influence on the stability of the measuring rod due to contact measurement by the realization form of a non-contact measurement mode in the cylindricity measurement of the large-scale bearing, thereby ensuring the accuracy of the measurement.
Description
Technical Field
The invention relates to a bearing cylindricity measuring instrument, in particular to a large-scale bearing ring cylindricity measuring instrument.
Background
At present, in the fields of shield machines, wind power and the like, the widely applied high-precision tapered roller bearing cannot be produced in quantity, the cylindricity and the energy consumption of the large-scale bearing are detected without effective means, and for a large-scale bearing ring with the diameter of more than 2 meters, the measurement requirements of the existing contact type sensor and the measurement mode of the rotation of a workpiece rotary table are difficult to meet due to the large size of parts, high measurement precision requirements of the cylindricity and the limitation of the measurement environment. Therefore, a large-scale bearing ring cylindricity rapid precision measuring device is urgently needed.
Disclosure of Invention
Aiming at the problems, the invention aims to provide a large-scale bearing ring cylindricity measuring instrument to realize the application verification of the ultraprecise manufacturing and detection technology of large-scale rolling bearings such as shield machines, wind power and the like, design on-site rapid self-adaptive precise offset adjustment process equipment, break through the manufacturing key technology of measuring equipment of the large-scale bearing cylindricity measuring instrument and realize on-site rapid precise measurement of the cylindricity of the large-scale bearing.
In order to achieve the purpose, the invention adopts the following technical scheme:
a large-scale bearing ring cylindricity measuring instrument comprises a telescopic gauge stand, a base platform, a numerical control air floatation platform, a mounting base, a buffer device and a Z-axis upright post, wherein the mounting base and the buffer device are alternately arranged on the base platform at intervals along the circumferential direction; the numerical control air floating platform is arranged on the basic platform; the Z-axis upright column is arranged on the numerical control air floatation platform; the telescopic meter frame is arranged on the Z-axis upright post; the numerical control air floatation platform is used for driving the telescopic meter frame to rotate, so that the cylindricity of the bearing ring placed on the placement base is measured.
The telescopic meter frame is a double-telescopic meter frame mechanism and comprises a left telescopic meter frame, a right telescopic meter frame and two laser sensors which are respectively arranged at the tail end of the left telescopic meter frame and the tail end of the right telescopic meter frame.
The left telescopic meter frame and the right telescopic meter frame are identical in structure and respectively comprise a meter rod, an inner sliding rail, an inner meter rod, a long sliding rail, a locking torsion bar, a support and a laser sensor, wherein the inner sliding rail is arranged on the inner meter rod, and the long meter rod is connected with the inner sliding rail in a sliding manner; the long slide rail is arranged on the long gauge rod, and the support is connected with the long slide rail in a sliding manner and is locked through a locking torsion bar; the support is connected with the Z-axis upright post; one end of the gauge rod is vertically connected with the inner surface rod, and the other end of the gauge rod is provided with the laser sensor.
The top of Z axle stand is equipped with the protecting cover, the both sides of protecting cover are equipped with the marking line shot-light, the marking line shot-light jets out red laser and forms the straight face light curtain that passes rotation center, and this straight face light curtain forms red cross line with the work piece that is surveyed, red cross line does laser sensor's measuring position.
The buffer device comprises an upper buffer plate, a cylinder mounting plate, a guide pillar and a lower buffer plate, wherein the cylinder mounting plate is connected with the base platform, and the cylinder is arranged on the cylinder mounting plate and outputs power along the vertical direction; the lower buffer plate is connected with the output end of the air cylinder, and the upper buffer plate is arranged above the lower buffer plate and is elastically connected with the lower buffer plate; guide posts are arranged below two ends of the upper buffer plate, and the lower ends of the guide posts penetrate through the lower buffer plate and are connected with the base platform in a sliding mode.
A large buffer pad is arranged above the upper buffer plate; and a small cushion pad is arranged at the upper end of the linear bearing.
And a Z-axis adjusting seat is arranged on the Z-axis upright column and used for adjusting the mounting height of the telescopic meter frame.
The placing bases are slidably arranged at four corners of the basic platform, and the upper surfaces of the placing bases are positioned in the same horizontal plane; and each mounting base is provided with a limiting shaft for positioning the workpiece.
The outer side of the mounting base is provided with a base adjusting plate, and the base adjusting plate is connected with the mounting base and used for adjusting the position of the mounting base.
The base platform and the Z-axis stand column are both made of granite; the bottom of the basic platform is provided with a ground foot for adjusting the height.
The invention has the advantages and positive effects that:
1. according to the invention, the large-scale bearing ring is placed and positioned through the granite platform and the mounting base, and the bearing ring does not rotate, so that the movement error generated by driving the bearing ring to rotate is reduced, and the structure of the basic platform is simplified.
2. According to the invention, the Z-axis granite upright column, the measuring arm and the sensor are driven to rotate by the air-flotation turntable, the numerical control air-flotation turntable is stable in rotation and high in precision, and the granite Z-axis material is good in stability and not easy to deform, so that the high-precision requirement of measurement is met.
3. The invention avoids the influence on the stability of the measuring rod due to contact measurement by the realization form of a non-contact measurement mode in the cylindricity measurement of the large-scale bearing, thereby ensuring the accuracy of the measurement.
Drawings
FIG. 1 is a schematic perspective view of a large-scale bearing ring cylindricity measuring instrument according to the present invention;
FIG. 2A is a front view of the large bearing ring cylindricity measuring apparatus of the present invention;
FIG. 2B is a right side view of FIG. 2A;
FIG. 2C is a top view of FIG. 2A;
FIG. 3A is a schematic perspective view of a buffering device according to the present invention;
FIG. 3B is a cross-sectional view of a cushioning device according to the present invention;
FIG. 4A is a schematic perspective view of a retractable watch holder according to the present invention;
FIG. 4B is a front view of the telescoping watch holder of the present invention;
FIG. 5 is a schematic perspective view of a mounting base according to the present invention;
fig. 6 is a schematic perspective view of an air-floating turntable according to the present invention.
In the figure: the device comprises a protective cover 1, a marker line spotlight 2, a telescopic gauge stand 3, a base adjusting plate 4, a foundation 5, a base platform 6, a numerical control air floating platform 7, a base fixing plate 8, a mounting base 9, a buffer device 10, a base link plate 11, a Z-axis upright post 12, a gauge rod 13, a Z-axis adjusting seat 14, a gauge rod clamp 15, a large buffer pad 16, an upper buffer plate 17, a linear bearing 18, a cylinder 19, a cylinder mounting plate 21, a linear bearing seat 22, a small buffer pad 23, a guide post 23, a spring grinding tool 24, a positioning screw 25, a lower buffer plate 26, an inner surface rail 27, an inner surface rail 28, a long gauge rod 29, a long gauge rod 30, a locking torsion bar 31, a support 32, a limiting shaft 33, a bearing ring 34 and a laser sensor 35.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in detail with reference to the accompanying drawings and specific embodiments.
As shown in fig. 1 and fig. 2A to 2C, the large-scale bearing ring cylindricity measuring instrument provided by the invention comprises a telescopic gauge stand 3, a base platform 6, a numerical control air floating platform 7, a mounting base 9, a buffer device 10 and a Z-axis upright post 12, wherein the mounting base 9 and the buffer device 10 are alternately arranged on the base platform 6 at intervals along the circumferential direction, and the buffer device 10 is used for buffering the impact force when a workpiece is placed; the numerical control air floating platform 7 is arranged at the center of the basic platform 6; the Z-axis upright post 12 is arranged on the numerical control air floating platform 7, and the lower end of the Z-axis upright post is connected with the numerical control air floating platform 7; the telescopic meter frame 3 is arranged at the top of the Z-axis upright post 12; the numerical control air floating platform 7 is used for driving the telescopic meter frame 3 to rotate, so that the cylindricity of the bearing ring placed on the placement base 9 is measured.
As shown in fig. 1, in the embodiment of the present invention, a protective cover 1 is disposed on the top of the Z-axis column 12, marker line lamps 2 are disposed on two sides of the protective cover 1, the marker line lamps 2 emit red laser light to form a straight light curtain passing through the rotation center, the straight light curtain and the workpiece to be measured form a red cross line, and the red cross line is the measurement position of the laser sensor 35.
Furthermore, a Z-axis adjusting seat 14 is arranged on the Z-axis column 12, and the Z-axis adjusting seat 14 is used for adjusting the installation height of the telescopic meter frame 3.
As shown in fig. 3A-3B, in the embodiment of the present invention, the damping device 10 includes an upper damping plate 17, a cylinder 19, a cylinder mounting plate 20, a guide post 23, and a lower damping plate 26, wherein the cylinder mounting plate 20 is connected to the base platform 6, and the cylinder 19 is disposed on the cylinder mounting plate 20 and outputs power in a vertical direction; the lower damping plate 26 is connected to the output end of the cylinder 19 and forms the load-bearing base portion of the damping device 10. The upper buffer plate 17 is arranged above the lower buffer plate 26 and is elastically connected with the lower buffer plate 26; guide posts 23 are arranged below two ends of the upper buffer plate 17, and the lower ends of the guide posts 23 penetrate through the lower buffer plate 26 and are connected with the base platform 6 in a sliding mode.
Specifically, the upper cushion plate 17 and the lower cushion plate 26 are connected by a set screw 25, and a grinding tool spring 24 is sleeved on the set screw 25. The lower end of the guide post 23 passes through a through hole arranged on the lower buffer plate 26 and can move up and down; the base platform 6 is provided with a linear bearing 18 connected with a guide post 23, the linear bearing 18 positioned on the outer side is arranged in a linear bearing seat 21, and the linear bearing seat 21 is connected with the base platform 6.
Further, a large buffer pad 16 is arranged above the upper buffer plate 17; the upper end of the linear bearing 18 is provided with a small cushion 22.
In the embodiment of the invention, four guide posts 23 are symmetrically arranged at four corners of an upper buffer plate 17, the guide posts 23 penetrate through a lower buffer plate 26, a linear bearing 18 is arranged in a linear bearing seat 21, the guide posts 23 are matched with the linear bearing 18 to limit the upper buffer plate 17 and the lower buffer plate 26 to only move up and down along the extension shaft direction of a cylinder 19, a grinding tool spring 24 is embedded between the upper buffer plate 17 and the lower buffer plate 26 through a positioning screw 25, and the grinding tool spring 24 can relieve the direct impact on the cylinder 19 when a large-sized bearing ring 34 falls down and protect the performance of the cylinder 19. Big blotter 16 is rubber materials, installs at last buffer board 17 upper surface, avoids causing the secondary wear injury to the work piece contact surface that is surveyed, and linear bearing seat 21 up end installation little blotter 22 reduces buffer board 26 down and to linear bearing 18's rigid impact, plays the guard action.
As shown in fig. 4A-4B, in the embodiment of the present invention, the extendible meter rack 3 is a dual extendible meter rack mechanism, and includes a left extendible meter rack, a right extendible meter rack, and two laser sensors 35 respectively disposed at the ends of the left extendible meter rack and the right extendible meter rack.
In this embodiment, the left and right extendible watchracks have the same structure, and each of the two extendible watchracks includes a watchbar 13, an inner slide rail 27, an inner surface bar 28, a long watchbar 29, a long slide rail 30, a locking torsion bar 31, a support 32, and a laser sensor 35, wherein the inner slide rail 27 is disposed on the inner surface bar 28, and the long watchbar 29 is slidably connected to the inner slide rail 27; the long slide rail 30 is arranged on the long gauge rod 29, and the support 32 is connected with the long slide rail 30 in a sliding manner and locked through the locking torsion bar 31; the support 32 is connected with the Z-axis upright post 12; one end of the meter rod 13 is vertically connected with the inner surface rod 28, and the other end is provided with a laser sensor 35.
In the embodiment of the invention, the guide structure of the telescopic watch frame 3 adopts a double-sliding-rail sliding block structure, so that the stability of the telescopic watch frame 3 during expansion is enhanced. The long gauge rod 29 is concave, the inner slide rails 27 are arranged on two outer sides of the inner gauge rod 28, and the long gauge rod 29 and the inner slide rails are matched with each other through slide blocks arranged on the inner side of the long gauge rod 29 to form a single telescopic gauge stand 3. Two telescopic meter frames (a left telescopic meter frame and a right telescopic meter frame) are arranged back to form a double telescopic meter frame mechanism, the telescopic meter frame 3 is arranged on the Z-axis adjusting seat 14 through a support 32 to form a part of a Z axis, and the expansion length of the telescopic meter frame 3 can be adjusted by adjusting the state of the locking torsion bar 31 according to different size specifications of a large bearing ring 34 to be measured. As shown in fig. 1, the laser sensor 35 can be installed at the end of the gauge rod 13, the marker line spot lights 2 are installed at both sides of the protective cover 1, the emitted red laser forms a straight light curtain passing through the center of rotation, and the straight light curtain and the workpiece to be measured form a red cross line which is the measuring position of the laser sensor 35.
As shown in fig. 5, in the embodiment of the present invention, the mounting bases 9 are slidably disposed at four corners of the base platform 6, and the upper surfaces thereof are located in the same horizontal plane; each mounting base 9 is provided with a limiting shaft 33 for positioning the bearing ring 34, and the position of the large bearing ring 34 is limited by the limiting shaft 33 to realize the positioning function. The outer side of the mounting base 9 is provided with a base adjusting plate 4, and the base adjusting plate 4 is connected with the mounting base 9 and used for adjusting the position of the mounting base 9.
In the embodiment of the invention, the base platform 6 and the Z-axis upright post 12 are both made of granite; four feet 5 for adjusting the height are arranged at the bottom of the basic platform 6, and the basic platform 6 is adjusted to a measuring reference level by adjusting the feet 5. The four corners installation arrangement base 9 of basic platform 6, the upper surface of four arrangement bases 9 is guaranteed on same horizontal plane, and forms circumference evenly distributed shape with the center of basic platform 6, and the position of arrangement base 9 can be adjusted to base adjusting plate 4, and base fixed plate 8 is fixed arrangement base 9 on basic platform 6, has supplementary adjustment position function.
The buffering devices 10 are installed in the middle positions of the four sides of the basic platform 6, the buffering devices 10 and the center of the basic platform 6 form a shape with the circumference uniformly distributed, the weight of the large-scale bearing ring 34 can be uniformly buffered, the four buffering devices 10 are controlled to lift at the same time, and the workpiece to be detected is guaranteed to slowly and stably fall on the placement base 9.
As shown in figure 6, the large-scale numerical control air-floating rotary table 7 adopted by the invention is internally provided with a multi-channel high-precision power and signal slip ring, and is matched with a calibration algorithm to realize precision rotation, and the numerical control air-floating rotary table 7 can bear the maximum weight of 3 tons, thereby meeting the requirements of the invention.
The working principle of the invention is as follows:
the foundation platform 6 adopts a granite platform, the foundation feet 5 are adjusted to ensure the level of the foundation platform 6, the four corners of the foundation platform 6 are provided with the mounting bases 9, the upper surfaces of the four mounting bases 9 are ensured to be on the same horizontal plane, and the mounting bases 9 are provided with limiting shafts 33 for positioning workpieces. The large bearing ring 34 is hoisted and placed on the buffer device 10, the buffer device 10 falls slowly, the end face of the large bearing ring 34 is made to contact with the upper surface of the placing base 9 slowly, and the large bearing ring is positioned through the limiting shaft 33, so that the requirement of measuring positions is met. When the large bearing ring 34 is hung and enlarged, the dial gauge 3 is retracted to avoid collision with the large bearing ring 34, and after the large bearing ring 34 is positioned, the dial gauge 3 is pulled out to a detection position and locked by the locking torsion bar 31. Then, the numerical control air-floating rotary table 7 rotates to drive the Z-axis upright post 12 to rotate, so as to drive the telescopic gauge stand 3, the gauge rod 13 and the laser sensor 35 to rotate together and move around the cylindrical surface of the large-sized bearing ring 34, and thus the non-contact measurement of the cylindricity of the large-sized bearing ring 34 is realized. The invention avoids the influence on the stability of the measuring rod due to contact measurement by the realization form of a non-contact measurement mode in the cylindricity measurement of the large-scale bearing, thereby ensuring the accuracy of the measurement.
The invention realizes the application verification of the ultra-precision manufacturing and detection technology of large rolling bearings such as shield machines, wind power and the like, designs on-site rapid self-adaptive precision offset adjustment process equipment, breaks through the manufacturing key technology of measuring equipment of a large bearing cylindricity instrument, and realizes on-site rapid precision measurement of the cylindricity of the large bearing.
The above description is only an embodiment of the present invention, and is not intended to limit the scope of the present invention. Any modification, equivalent replacement, improvement, extension, etc. made within the spirit and principle of the present invention are included in the protection scope of the present invention.
Claims (7)
1. A large-scale bearing ring cylindricity measuring instrument is characterized by comprising a telescopic gauge stand (3), a basic platform (6), a numerical control air floating platform (7), a mounting base (9), a buffer device (10) and a Z-axis upright post (12), wherein the mounting base (9) and the buffer device (10) are alternately arranged on the basic platform (6) at intervals along the circumferential direction; the numerical control air floating platform (7) is arranged on the basic platform (6); the Z-axis upright column (12) is arranged on the numerical control air floatation platform (7); the telescopic meter frame (3) is arranged on the Z-axis upright post (12); the numerical control air floatation platform (7) is used for driving the telescopic meter frame (3) to rotate, so that the cylindricity of a bearing ring placed on the placement base (9) is measured;
the telescopic meter frame (3) is a double-telescopic meter frame mechanism and comprises a left telescopic meter frame, a right telescopic meter frame and two laser sensors (35) which are respectively arranged at the tail ends of the left telescopic meter frame and the right telescopic meter frame;
the left telescopic meter frame and the right telescopic meter frame are identical in structure and respectively comprise a meter rod (13), an inner sliding rail (27), an inner surface rod (28), a long meter rod (29), a long sliding rail (30), a locking torsion bar (31), a support (32) and a laser sensor (35), wherein the inner sliding rail (27) is arranged on the inner meter rod (28), and the long meter rod (29) is connected with the inner sliding rail (27) in a sliding manner; the long slide rail (30) is arranged on the long gauge rod (29), and the support (32) is connected with the long slide rail (30) in a sliding manner and locked through a locking torsion bar (31); the support (32) is connected with the Z-axis upright post (12); one end of the meter rod (13) is vertically connected with the inner meter rod (28), and the other end of the meter rod is provided with the laser sensor (35);
the top of Z axle stand (12) is equipped with protecting cover (1), the both sides of protecting cover (1) are equipped with sign line shot-light (2), sign line shot-light (2) jet out red laser and form the straight face light curtain that passes rotation center, and this straight face light curtain forms red cross line with the work piece of being surveyed, red cross line is laser sensor (35)'s measuring position.
2. The large bearing ring cylindricity measuring instrument according to claim 1, characterized in that the buffer device (10) comprises an upper buffer plate (17), a cylinder (19), a cylinder mounting plate (20), a guide post (23) and a lower buffer plate (26), wherein the cylinder mounting plate (20) is connected with the base platform (6), the cylinder (19) is arranged on the cylinder mounting plate (20) and outputs power in a vertical direction; the lower buffer plate (26) is connected with the output end of the cylinder (19), and the upper buffer plate (17) is arranged above the lower buffer plate (26) and elastically connected with the lower buffer plate (26); guide columns (23) are arranged below two ends of the upper buffer plate (17), and the lower ends of the guide columns (23) penetrate through the lower buffer plate (26) and are connected with the base platform (6) in a sliding mode.
3. The large bearing ring cylindricity measuring instrument according to claim 2, characterized in that a large buffer pad (16) is arranged above the upper buffer plate (17); a linear bearing seat (21) is arranged on the base platform (6), and a linear bearing (18) connected with the guide post (23) is arranged in the linear bearing seat (21); the upper end of the linear bearing (18) is provided with a small buffer pad (22).
4. The large bearing ring cylindricity measuring instrument according to claim 1, characterized in that a Z-axis adjusting seat (14) is provided on the Z-axis column (12), and the Z-axis adjusting seat (14) is used for adjusting the installation height of the telescopic gauge stand (3).
5. The large bearing ring cylindricity measuring instrument according to claim 1, characterized in that the mounting bases (9) are slidably arranged at the four corners of the base platform (6) and the upper surfaces are located in the same horizontal plane; each of the mounting bases (9) is provided with a limiting shaft (33) for positioning a workpiece.
6. The large bearing ring cylindricity measuring instrument according to claim 5, characterized in that the outer side of said mounting base (9) is provided with a base adjusting plate (4), said base adjusting plate (4) is connected with said mounting base (9) for adjusting the position of said mounting base (9).
7. The large bearing ring cylindricity measuring instrument according to claim 1, characterized in that, the base platform (6) and the Z-axis column (12) are made of granite material; the bottom of the basic platform (6) is provided with a ground foot (5) for adjusting the height.
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| CN202011219508.2A CN112378347B (en) | 2020-11-05 | 2020-11-05 | Large-scale bearing ring cylindricity measuring instrument |
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| CN202011219508.2A CN112378347B (en) | 2020-11-05 | 2020-11-05 | Large-scale bearing ring cylindricity measuring instrument |
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| CN112378347B true CN112378347B (en) | 2022-03-08 |
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| CN114295025B (en) * | 2021-12-30 | 2022-10-25 | 泰州市大川机械科技有限公司 | Shield constructs quick-witted bearing capability test device |
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| JP2018021321A (en) * | 2016-08-02 | 2018-02-08 | 株式会社フジタ | Circularity measurement device |
| CN107152907A (en) * | 2017-05-31 | 2017-09-12 | 江苏理工学院 | The measurement apparatus and method of a kind of shaft-like workpiece |
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| CN207439363U (en) * | 2017-09-05 | 2018-06-01 | 重庆友好活塞有限公司 | Piston face cylindricity detection device |
| CN208125039U (en) * | 2018-04-23 | 2018-11-20 | 吉林省金沙数控机床股份有限公司 | A kind of circularity detection device for disc type work |
| CN209295907U (en) * | 2019-01-12 | 2019-08-23 | 河北万达轮胎有限公司 | For testing the bounce value detection device of tire circularity |
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| CN110864652A (en) * | 2019-12-23 | 2020-03-06 | 芜湖哈特机器人产业技术研究院有限公司 | Device for measuring size of inner cavity of automobile brake drum |
| CN111288908A (en) * | 2020-03-25 | 2020-06-16 | 日立电梯电机（广州）有限公司 | Roundness detection system and method |
| CN111595286A (en) * | 2020-06-01 | 2020-08-28 | 虞结全 | Circle checking equipment for outer circle of gear ring of automobile synchronizer |
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