CN110906838B - Three-lobe bearing raceway profile measuring instrument - Google Patents
Three-lobe bearing raceway profile measuring instrument Download PDFInfo
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- CN110906838B CN110906838B CN201911285328.1A CN201911285328A CN110906838B CN 110906838 B CN110906838 B CN 110906838B CN 201911285328 A CN201911285328 A CN 201911285328A CN 110906838 B CN110906838 B CN 110906838B
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B5/00—Measuring arrangements characterised by the use of mechanical techniques
- G01B5/20—Measuring arrangements characterised by the use of mechanical techniques for measuring contours or curvatures
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Abstract
A three-lobe wave bearing raceway contour measuring instrument belongs to the field of three-lobe wave bearing raceway contour measuring. The problem of current three lamella ripples bearing raceway profile measuring apparatu have that measurement accuracy is low and measuring efficiency is poor is solved. When the measuring instrument is used for measuring, the positions of the outer supporting piece, the auxiliary supporting piece and the outer diameter comparator are adjusted through the standard piece, and the outer diameter of the bearing is measured; determining the initial position of the inner support by adjusting the fine adjustment knob; adjusting the auxiliary support to position and install the bearing ring to be measured; and rotating the ferrule, wherein the difference between the readings of the two comparators is the final three-lobe wave raceway waveform contour value. The invention is suitable for measuring the three-lobe wave bearing raceway profile.
Description
Technical Field
The invention belongs to the field of measuring the contour of a three-lobe wave bearing raceway.
Background
The existing three-lobe wave raceway ring waveform contour measuring instrument uses a general equipment three-coordinate measuring instrument, the detection precision of the three-coordinate measuring instrument is high, the measurement precision can reach E ═ 1.0+ L/350 μm, the expansion uncertainty reaches 2 μm, but due to the universality of the equipment, operations such as clamping, positioning, software parameter calibration and the like are required before the first piece of detection, the detection efficiency is low, the requirement of bearing batch detection is not suitable, the existing three-lobe bearing raceway contour measuring instrument is greatly influenced by factors such as measurement environment temperature, humidity and the like, and the problem of low measurement precision exists.
Disclosure of Invention
The three-lobe wave bearing raceway profile measuring instrument is provided aiming at the problems of low measuring precision and poor measuring efficiency of the existing three-lobe wave bearing raceway profile measuring instrument.
The invention relates to a three-lobe wave bearing raceway contour measuring instrument which comprises a base 1, a workbench 2, an outer diameter comparator mounting bracket 3, an inner raceway comparator mounting hole 4, an upper computer 5 and a concentrator 6, wherein the outer diameter comparator mounting bracket is arranged on the base;
the inner raceway comparator mounting hole 4 transversely penetrates through the base 1 body and is arranged close to the top end of the base 1; the inner raceway comparator is used for acquiring the inner diameter of the inner raceway of the three-lobe raceway ring;
the workbench 2 is fixed on the base 1 and is positioned on the front side of the inner raceway comparator mounting hole 4; the surface of the workbench 2 is in a slope shape;
the bottom end of the outer diameter comparator mounting bracket 3 is fixed on the base 1 and is positioned at the rear side of the inner raceway comparator mounting hole 4; the upper end of the outer diameter comparator mounting bracket 3 is used for clamping an outer diameter comparator; the outer diameter comparator is used for collecting the outer diameter of the three-lobe wave raceway ring;
the workbench 2 comprises a circular table surface 201, four slide ways 202 are arranged on the circular table surface 201, two of the four slide ways 202 are used for placing an outer support member 203, one is used for placing an inner support member 204, and the other is used for placing an auxiliary support member 205;
the outer support piece 203 and the auxiliary support piece 205 are both arranged on the outer side of the three-lobe wave raceway ring and are both used for supporting the outer diameter of the three-lobe wave raceway ring;
the inner support 204 is arranged at the inner side of the three-lobe wave track ring and used for supporting the inner track of the three-lobe wave track ring;
the measuring signal output ends of the outer diameter comparator and the inner raceway comparator are connected with an upper computer 5 through a concentrator 6;
the upper computer 5 is used for drawing the outline graph of the three-lobe wave raceway ring by using data collected by the outer comparator and data collected by the inner raceway comparator.
Furthermore, the inner roller path comparator and the outer diameter comparator both adopt digital display dial indicators.
Furthermore, the circular table surface 201 is provided with scale marks, and the scale marks are arranged along the circumferential direction of the circular table surface 201.
Furthermore, the four slide ways all extend outwards from the circle center along the radius direction, the slide ways of the two outer support pieces 203 and the slide ways of the inner support piece 204 are arranged at equal intervals, the included angles are all 120 degrees, and the included angle between the slide ways of the auxiliary support piece 205 and the slide ways of the inner support piece 204 is 30 degrees.
Further, the workbench 2 further comprises a fine adjustment knob 206, an adjustment slider 207, a connecting block 208 and a 45-degree wedge slider 209;
the fine adjustment knob is arranged on the side surface of the workbench 2, and the adjustment sliding block 207, the connecting block 208 and the 45-degree wedge-shaped sliding block 209 are all positioned on the lower side of the circular table surface 201 of the workbench 2 and arranged in the base 1;
the front end of the adjusting slide block 207 is a 45-degree slope, and both ends of the connecting block 208 are 45-degree slopes;
the front end of the adjusting sliding block 207 is connected with one end of the connecting block 208 in a sliding manner, and the other end of the connecting block 208 is connected with the inclined plane of the 45-degree wedge-shaped sliding block 209 in a sliding manner;
the inclined plane of the 45-degree wedge-shaped sliding block 209 corresponds to the mounting hole of the inner raceway comparator;
the fine adjustment knob is used for adjusting the transverse advance or retreat of the adjustment slider 207 to drive the connecting block 208 to move longitudinally, and the longitudinal movement of the connecting block 208 drives the 45-degree wedge-shaped slider 209 to move axially in the inner raceway comparator mounting hole 4; and a detection head of the inner raceway comparator corresponds to the inclined plane of the 45-degree wedge-shaped sliding block.
Furthermore, the measurement accuracy of the outer diameter comparator and the inner track comparator is 0.001 mm.
Further, the upper computer 5 comprises a data entry module 501, a contour curve fitting module 502, a data import and export module 503 and a display module 504;
the data entry module 501 is configured to provide a setting port of a single rotation angle of the three-lobe wave bearing on the workbench 2, and send the data of the single rotation angle of the three-lobe wave bearing to the profile curve fitting module 502;
the contour curve fitting module 502 is used for performing three-lobe bearing contour curve fitting by using data acquired by the outer diameter comparator, data acquired by the inner raceway comparator and three-lobe bearing single rotation angle data, and simultaneously transmitting a three-lobe bearing contour curve obtained by fitting to the data import and export module 503 and the display module 504;
the display module 504 is configured to display the fitted three-lobe bearing profile curve;
the data import and export module 503 is configured to export the three-lobe bearing contour curve after converting the three-lobe bearing contour curve into a document form, or import a graph in the document form, read the graph in the document form, and send the read graph to the contour curve fitting module 502.
When the measuring instrument is used for measuring, the positions of the outer supporting piece, the auxiliary supporting piece and the outer diameter comparator are adjusted through the standard piece, and the outer diameter of the bearing is measured; determining the initial position of the inner support by adjusting the fine adjustment knob; adjusting the auxiliary support to position and install the bearing ring to be measured; rotating the ferrule, wherein the difference between the readings of the two comparators is the final three-lobe wave raceway waveform contour value; because the inner diameter comparator and the outer diameter comparator are both realized by adopting the digital comparator, the real-time recording function of the detection data is realized; meanwhile, a concentrator is used for data transmission, so that the upper computer can automatically collect data, and the data can be analyzed and compared conveniently; the measuring precision is effectively improved, and the waveform profile of the three-lobe wave outer ring raceway can be quickly obtained; the measuring efficiency is improved.
Drawings
FIG. 1 is a schematic structural diagram of a three-lobe wave bearing raceway profile measuring instrument according to the invention;
FIG. 2 is a schematic side view of the three-lobe wave bearing raceway profile measuring instrument according to the present invention;
FIG. 3 is a schematic view of the connection relationship between the upper computer 5 and the line collector 6 and the digital display comparator;
FIG. 4 is a schematic view of the internal structure of the table 2;
fig. 5 is a remote block diagram of the upper computer.
Detailed Description
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 only a part of the embodiments of the present invention, and not all of the embodiments. 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 the embodiments and features of the embodiments may be combined with each other without conflict.
The invention is further described with reference to the following drawings and specific examples, which are not intended to be limiting.
The first embodiment is as follows: the following describes the present embodiment with reference to fig. 1 to 5, and the three-lobe wave bearing raceway profile measuring instrument of the present embodiment includes a base 1, a workbench 2, an outer diameter comparator mounting bracket 3, an inner raceway comparator mounting hole 4, an upper computer 5, and a hub 6;
the inner raceway comparator mounting hole 4 transversely penetrates through the base 1 body and is arranged close to the top end of the base 1; the inner raceway comparator is used for acquiring the inner diameter of the inner raceway of the three-lobe raceway ring;
the workbench 2 is fixed on the base 1 and is positioned on the front side of the inner raceway comparator mounting hole 4; the surface of the workbench 2 is in a slope shape;
the bottom end of the outer diameter comparator mounting bracket 3 is fixed on the base 1 and is positioned at the rear side of the inner raceway comparator mounting hole 4; the upper end of the outer diameter comparator mounting bracket 3 is used for clamping an outer diameter comparator; the outer diameter comparator is used for collecting the outer diameter of the three-lobe wave raceway ring;
the workbench 2 comprises a circular table surface 201, four slide ways 202 are arranged on the circular table surface 201, two of the four slide ways 202 are used for placing an outer support member 203, one is used for placing an inner support member 204, and the other is used for placing an auxiliary support member 205;
the outer support piece 203 and the auxiliary support piece 205 are both arranged on the outer side of the three-lobe wave raceway ring and are both used for supporting the outer diameter of the three-lobe wave raceway ring;
the inner support 204 is arranged at the inner side of the three-lobe wave track ring and used for supporting the inner track of the three-lobe wave track ring;
the measuring signal output ends of the outer diameter comparator and the inner raceway comparator are connected with an upper computer 5 through a concentrator 6;
the upper computer 5 is used for drawing the outline graph of the three-lobe wave raceway ring by using data collected by the outer comparator and data collected by the inner raceway comparator.
When the bearing outer ring is processed and used, the outer diameter is usually used as a processing and positioning reference, and in order to reduce errors and avoid damage to the working surface of the ferrule, the measuring instrument also adopts the outer diameter of the outer ring for positioning; the working disk surface of the instrument is designed into a circle, and the disk surface is provided with corner scales, so that the waveform values at each angular position in the circumferential direction of the ferrule can be conveniently measured;
the workbench circular table surface is provided with a fixed outer support piece (2) and an auxiliary support piece (1) device, an included angle between the sliding directions of the two fixed support pieces is 120 degrees, the auxiliary support piece is an elastic support and has an included angle of 30 degrees with the sliding direction of the inner support piece, the included angle between the sliding direction of the inner support piece and the sliding direction of the two outer support pieces is 120 degrees, the elastic support force needs to be larger than the measurement fulcrum force, so that the bearing ring is always in a pressing state, the error caused by circle center displacement is reduced, and the accurate positioning of the bearing ring is ensured, as shown in fig. 1 and fig. 2.
A comparator (dial indicator) is respectively arranged at the outer diameter of the bearing and the raceway, and an angle of 120 degrees is formed between the position of the outer diameter measuring point and the two outer supporting pieces, so that the influence of the outer diameter deviation on the measuring result is reduced as much as possible; the reading of the gauge needle is converted by adopting a wedge-shaped sliding block (the wedge angle alpha is 45 degrees) at the raceway, and a measuring branch point is connected with the sliding block;
furthermore, the inner roller path comparator and the outer diameter comparator both adopt digital display dial indicators.
Furthermore, the four slide ways all extend outwards from the circle center along the radius direction, the slide ways of the two outer support pieces 203 and the slide ways of the inner support piece 204 are arranged at equal intervals, the included angles are all 120 degrees, and the included angle between the slide ways of the auxiliary support piece 205 and the slide ways of the inner support piece 204 is 30 degrees.
Furthermore, the circular table surface 201 is provided with scale marks, and the scale marks are arranged along the circumferential direction of the circular table surface 201.
Further, referring to fig. 4, this embodiment is described, in this embodiment, the workbench 2 further includes a fine adjustment knob 206, an adjustment slider 207, a connection block 208, and a 45-degree wedge slider 209;
the fine adjustment knob 206 is arranged on the side surface of the workbench 2, and the adjustment sliding block 207, the connecting block 208 and the 45-degree wedge-shaped sliding block 209 are all positioned on the lower side of the circular table surface 201 of the workbench 2 and arranged in the base 1;
the front end of the adjusting slide block 207 is a 45-degree slope, and both ends of the connecting block 208 are 45-degree slopes;
the front end of the adjusting sliding block 207 is connected with one end of the connecting block 208 in a sliding manner, and the other end of the connecting block 208 is connected with the inclined plane of the 45-degree wedge-shaped sliding block 209 in a sliding manner;
the inclined plane of the 45-degree wedge-shaped sliding block 209 corresponds to the mounting hole of the inner raceway comparator;
the fine adjustment knob 206 is connected with the rear end of the adjustment slider 207 and is used for adjusting the adjustment slider 207 to transversely advance or retreat to drive the connecting block 208 to longitudinally move, and the connecting block 208 longitudinally moves to drive the 45-degree wedge-shaped slider 209 to axially move in the inner raceway comparator mounting hole 4; and a detection head of the inner raceway comparator corresponds to the inclined plane of the 45-degree wedge-shaped sliding block.
In the present embodiment, the longitudinal direction (i.e., the axial direction) of the inner raceway comparator mounting hole is parallel to the longitudinal direction of the adjustment slider 207.
Furthermore, the measurement accuracy of the outer diameter comparator and the inner track comparator is 0.001 mm.
Further, the upper computer 5 comprises a data entry module 501, a contour curve fitting module 502, a data import and export module 503 and a display module 504;
the data entry module 501 is configured to provide a setting port of a single rotation angle of the three-lobe wave bearing on the workbench 2, and send the data of the single rotation angle of the three-lobe wave bearing to the profile curve fitting module 502;
the contour curve fitting module 502 is used for performing three-lobe bearing contour curve fitting by using data acquired by the outer diameter comparator, data acquired by the inner raceway comparator and three-lobe bearing single rotation angle data, and simultaneously transmitting a three-lobe bearing contour curve obtained by fitting to the data import and export module 503 and the display module 504;
the display module 504 is configured to display the fitted three-lobe bearing profile curve;
the data import and export module 503 is configured to export the three-lobe bearing contour curve after converting the three-lobe bearing contour curve into a document form, or import a graph in the document form, read the graph in the document form, and send the read graph to the contour curve fitting module 502.
The data import/export module 503 according to this embodiment is configured to convert the three-lobe bearing contour curve into a document form and export the document form, and store the measurement data; or the curve in the document is directly imported and read through the data import and export module 503, so as to facilitate the subsequent addition of the measurement data.
The invention designs a special instrument for measuring the waveform profile of a three-lobe wave raceway ring under the condition of considering both detection precision and measurement efficiency, and the instrument eliminates the error influence of inner diameter support by elastically supporting the outer diameter of a bearing outer ring through three-point positioning so as to obtain the waveform profile data of the three-lobe wave raceway.
The digital display dial indicator with a data acquisition function is adopted, the measurement precision is 0.001mm, the data are automatically acquired, the labor cost is saved, errors caused by manual entry are reduced, the working efficiency in the production process is improved, and the wiring of a circuit is shown in figure 3;
waveform contour generation software is embedded in the upper computer, so that the actually measured waveform can be visually compared with the standard waveform to obtain various size errors of the waveform contour of the part, and the detection efficiency is improved to 3 minutes from the original 30 minutes after the use;
the measuring instrument has the advantages of simple structure, convenient measurement, low instrument maintenance cost and low requirement on operators;
the circular table surface is provided with scales along the circumferential direction, so that waveform values of different angle positions can be obtained, and finally a waveform profile curve is generated, as shown in fig. 4.
Although the invention herein has been described with reference to particular embodiments, it is to be understood that these embodiments are merely illustrative of the principles and applications of the present invention. It is therefore to be understood that numerous modifications may be made to the illustrative embodiments and that other arrangements may be devised without departing from the spirit and scope of the present invention as defined by the appended claims. It should be understood that features described in different dependent claims and herein may be combined in ways different from those described in the original claims. It is also to be understood that features described in connection with individual embodiments may be used in other described embodiments.
Claims (4)
1. A three-lobe wave bearing raceway contour measuring instrument is characterized by comprising a base (1), a workbench (2), an outer diameter comparator mounting bracket (3), an inner raceway comparator mounting hole (4), an upper computer (5) and a concentrator (6);
the inner raceway comparator mounting hole (4) transversely penetrates through the base (1) body and is arranged close to the top end of the base (1); the inner raceway comparator is used for acquiring the inner diameter of the inner raceway of the three-lobe raceway ring;
the workbench (2) is fixed on the base (1) and is positioned on the front side of the inner raceway comparator mounting hole (4); the surface of the workbench (2) is in a slope shape;
the bottom end of the outer diameter comparator mounting bracket (3) is fixed on the base (1) and is positioned at the rear side of the inner raceway comparator mounting hole (4); the upper end of the outer diameter comparator mounting bracket (3) is used for clamping an outer diameter comparator; the outer diameter comparator is used for collecting the outer diameter of the three-lobe wave bearing raceway ring;
the workbench (2) comprises a circular table top (201), and scale marks are arranged on the circular table top (201) and arranged along the circumferential direction of the circular table top (201);
four slide ways (202) are arranged on the circular table top (201), two of the four slide ways (202) are used for placing an outer support (203), one is used for placing an inner support (204), and the other is used for placing an auxiliary support (205);
the four slide ways (202) extend outwards from the circle center along the radius direction, the slide ways (202) of the two outer supporting pieces (203) and the slide ways (202) of the inner supporting piece (204) are arranged at equal intervals, included angles are 120 degrees, and the included angles between the slide ways (202) of the auxiliary supporting piece (205) and the slide ways (202) of the inner supporting piece (204) are 30 degrees;
the outer support piece (203) and the auxiliary support piece (205) are arranged on the outer side of the three-lobe wave bearing raceway ring and are used for supporting the outer diameter of the three-lobe wave bearing raceway ring;
the inner support (204) is arranged on the inner side of the three-piece wave bearing raceway ring and used for supporting the inner raceway of the three-piece wave bearing raceway ring;
the workbench (2) also comprises a fine adjustment knob (206), an adjustment sliding block (207), a connecting block (208) and a 45-degree wedge-shaped sliding block (209);
the fine adjustment knob (206) is arranged on the side face of the workbench (2), and the adjustment sliding block (207), the connecting block (208) and the 45-degree wedge-shaped sliding block (209) are all positioned on the lower side of the circular table top (201) of the workbench (2) and arranged in the base (1);
the inner supporting piece (204) is fixed on the connecting block (208);
the front end of the adjusting slide block (207) is a 45-degree slope, and two ends of the connecting block (208) are both 45-degree slopes;
the front end of the adjusting sliding block (207) is connected with one end of the connecting block (208) in a sliding mode, and the other end of the connecting block (208) is connected with an inclined plane of the 45-degree wedge-shaped sliding block (209) in a sliding mode;
the inclined plane of the 45-degree wedge-shaped sliding block (209) corresponds to the mounting hole of the inner roller path comparator;
the fine adjustment knob (206) is used for adjusting the transverse advance or retreat of the adjustment slide block (207) to drive the connecting block (208) to move longitudinally, and the connecting block (208) moves longitudinally to drive the 45-degree wedge-shaped slide block (209) to move axially in the inner raceway comparator mounting hole (4); the detection head of the inner raceway comparator corresponds to the inclined plane of the 45-degree wedge-shaped sliding block;
the measuring signal output ends of the outer diameter comparator and the inner raceway comparator are connected with an upper computer (5) through a concentrator (6);
the upper computer (5) is used for drawing the contour graph of the three-lobe bearing raceway ring by using the data collected by the outer diameter comparator and the data collected by the inner raceway comparator.
2. The measuring instrument for the profile of the raceway of the trivalvular wave bearing according to claim 1, wherein the inner raceway comparator and the outer diameter comparator both adopt digital dial indicators.
3. The apparatus according to claim 1, wherein the outer diameter comparator and the inner raceway comparator both have a measurement accuracy of 0.001 mm.
4. The measuring instrument for the three-lobe wave bearing raceway contour according to claim 1 or 2, characterized in that the upper computer (5) comprises a data entry module (501), a contour curve fitting module (502), a data import and export module (503) and a display module (504);
the data entry module (501) is used for providing a setting port of a single rotation angle of the three-lobe wave bearing on the workbench (2) and sending the data of the single rotation angle of the three-lobe wave bearing to the contour curve fitting module (502);
the contour curve fitting module (502) is used for performing three-lobe bearing contour curve fitting by utilizing data acquired by the outer diameter comparator, data acquired by the inner raceway comparator and three-lobe bearing single-rotation-angle data, and simultaneously transmitting a three-lobe bearing contour curve obtained by fitting to the data import and export module (503) and the display module (504);
the display module (504) is used for displaying the fitted three-lobe wave bearing profile curve;
the data import and export module (503) is used for exporting the three-lobe bearing contour curve after converting the contour curve into a document form, or importing a curve graph of the document form, reading the curve graph of the document form and sending the read curve graph to the contour curve fitting module (502).
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| Application Number | Priority Date | Filing Date | Title |
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| CN201911285328.1A CN110906838B (en) | 2019-12-13 | 2019-12-13 | Three-lobe bearing raceway profile measuring instrument |
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| CN201911285328.1A CN110906838B (en) | 2019-12-13 | 2019-12-13 | Three-lobe bearing raceway profile measuring instrument |
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| CN110906838A CN110906838A (en) | 2020-03-24 |
| CN110906838B true CN110906838B (en) | 2021-09-07 |
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| CN111692950B (en) * | 2020-07-27 | 2022-06-17 | 广州大学 | Device and method for measuring outer diameter of thin-wall bearing ring |
| TR202022287A2 (en) * | 2020-12-29 | 2022-07-21 | Ortadogu Rulman San Ve Tic A S | INSIDE DIAMETER OF BEARING RINGS AND VERTICAL MEASUREMENT |
| CN113405423B (en) * | 2021-06-17 | 2023-09-01 | 无锡鑫圣智能装备有限公司 | Bearing part roller clamping rotation measuring device |
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