CN111089524A - Integrated asymmetric-structure bearing channel measuring device - Google Patents
Integrated asymmetric-structure bearing channel measuring device Download PDFInfo
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- CN111089524A CN111089524A CN201911384118.8A CN201911384118A CN111089524A CN 111089524 A CN111089524 A CN 111089524A CN 201911384118 A CN201911384118 A CN 201911384118A CN 111089524 A CN111089524 A CN 111089524A
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- steel ball
- measuring device
- pressure point
- support
- bearing channel
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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
- G01B5/004—Measuring arrangements characterised by the use of mechanical techniques for measuring coordinates of points
- G01B5/008—Measuring arrangements characterised by the use of mechanical techniques for measuring coordinates of points using coordinate measuring machines
Abstract
The invention relates to an integrated asymmetric structure bearing channel measuring device, which relates to a measuring device of a bearing channel and aims to solve the problems that the existing measuring device and measuring method can not meet the actual measurement requirement aiming at the asymmetric structure bearing, the measuring process is complicated and is not suitable for the process control of batch processing.
Description
Technical Field
The invention relates to a measuring device for a bearing channel, in particular to a measuring device for a bearing channel with an integrated asymmetric structure, and belongs to the technical field of bearing measurement.
Background
Taking a certain type of bearing as an example (fig. 8), the outer ring of the bearing is an elastic supporting structure, the width of the outer ring is 92.3mm, the distance from the center of the groove to the reference end surface is 72.8 +/-0.015 mm, the groove swing is 0.006mm, and the maximum outer diameter dimension is 264 mm. A length measuring axis instrument or a profile instrument is adopted for the groove position and the groove parallel difference of the deep groove ball bearing, and the measuring method has the following problems:
1. the length measuring instrument adopts a flanging measurement method, the difference between the distances from the central line of the groove to the end faces on two sides is compared, and the total width of the ferrule is controlled to obtain the groove measurement result, but the groove of the bearing is in an asymmetric structure, the position size difference of the grooves on two ends reaches 52mm, the groove cannot be measured by adopting the flanging measurement method, the width size of the groove exceeds the maximum measurement range (the maximum allowable width of the length measuring instrument D014 is 72mm), and the measurement method and the measurement instrument cannot meet the actual measurement requirement.
2. The direct measurement is carried out by adopting a contourgraph, one side end face of the ferrule is required to be placed on a measuring platform, a measuring needle respectively scans the end face of the ferrule and the number of points of a channel, and the distance from the end face to the center of the channel is calculated by a least square method. However, the method is complicated in measurement process and is not suitable for process control of batch processing.
Disclosure of Invention
The invention provides an integrated asymmetric structure bearing channel measuring device, aiming at solving the problems that the existing measuring device and measuring method can not meet the actual measurement requirement aiming at the asymmetric structure bearing, the measuring process is more complicated and is not suitable for the process control of batch processing.
The technical scheme adopted by the invention for solving the problems is as follows:
the utility model provides an integration asymmetric structure bearing channel measuring device, it includes bearing outer ditch position measurement appearance, this measuring device includes pressure point support, pressure point and two steel ball fulcrums, and pressure point support and two steel ball fulcrums all are connected with bearing outer ditch position measurement appearance, and two steel ball fulcrums are located the upper and lower both sides of pressure point support respectively, and the pressure point is installed on the pressure point support, and the pressure point is located between two steel ball fulcrums.
Furthermore, the pressure point support is formed by sequentially connecting an upper end support and a support seat into a whole from top to bottom.
Further, an angle (a) between the upper end bracket and the bracket base is 45 degrees.
Furthermore, the upper part of the upper end bracket is provided with a connecting hole matched with the pressure point, the side surface of the upper end bracket is provided with a through hole, the end part of the upper end bracket is provided with a through groove, and the through groove extends to the connecting hole from the end part of the upper end bracket; two counter bores are arranged on the bracket seat.
Furthermore, the pressure point comprises an upper cylinder, a lower cylinder and a shoulder, the upper cylinder and the lower cylinder are sequentially connected into a whole from top to bottom, and the shoulder is arranged on the upper cylinder.
Furthermore, the steel ball pivot comprises a steel ball support and a steel ball, the steel ball support is sequentially connected from left to right by a connecting section, a transition section and a steel ball section, a blind hole is formed in the lower surface of the steel ball section, and the steel ball is pressed in the blind hole.
Furthermore, the upper surface of the steel ball section is provided with a through hole which extends to the blind hole.
Furthermore, the connecting section is provided with an inclined plane B, and the included angle (a1) between the inclined plane B and the horizontal plane is 6 degrees.
The invention has the beneficial effects that:
experiments prove that the accuracy and the repeatability error of the device are both less than 3um, and the stability of the improved integrated asymmetric structure bearing channel measuring device can be proved to meet the requirements; the measuring device solves the difficulty of measuring the position of the outer groove of the bearing with the integrated asymmetric structure, has stable and reliable measuring method and high efficiency, and is suitable for measuring the position and the groove pendulum of the bearing with the asymmetric structure and controlling the process quality.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a top view of the pressure point bracket; FIG. 3 is a side view in rotation C of FIG. 2; FIG. 4 is a B-diagram of FIG. 2;
FIG. 5 is a front view of a press point;
FIG. 6 is a front view of a steel ball fulcrum; FIG. 7 is a top view of FIG. 6;
fig. 8 is a schematic structural view of a bearing outer race.
Detailed Description
The first embodiment is as follows: the present embodiment is described with reference to fig. 1 to 8, and the present embodiment is an integrated asymmetric structure bearing channel measuring apparatus, which includes a bearing outer groove position measuring instrument, and is characterized in that: the measuring device comprises a pressure point support 1, a pressure point 2 and two steel ball fulcrums 3, wherein the pressure point support 1 and the two steel ball fulcrums 3 are connected with a bearing outer groove position measuring instrument, the two steel ball fulcrums 3 are respectively located on the upper side and the lower side of the pressure point support 1, the pressure point 2 is installed on the pressure point support 1, and the pressure point 2 is located between the two steel ball fulcrums 3.
The second embodiment is as follows: referring to fig. 2 to 4, the pressure point bracket 1 of the present embodiment is formed by sequentially connecting an upper end bracket 1-1 and a bracket base 1-2 from top to bottom.
The pressure point support 1 is made of GCr15 materials and is designed to be of an irregular pentagonal structure, the support base is fixed with an instrument through two counter bores 1-2-1, and the upper end support 1-1 rotates 45 degrees in the horizontal direction, so that the pressure point can be pressed on the surface of a channel by 45 degrees. Drilling a connecting hole 1-1-1 with the diameter of 12+0.020mm on the bracket, wherein the surface roughness of the hole is Ra1.6um, milling a through groove 1-1-3 with the width of 1.5mm penetrating through the terminal of the bracket to the connecting hole 1-1-1, drilling a through hole with the diameter of 6.5mm on the side surface, tapping M6 on the other side, connecting and pressing a gap with the diameter of 1.5mm through bolts, and fixing a pressure point. The hardness of the pressure point support 1 after heat treatment is HRC60-65, and the rigidity of the support is improved.
Other components and connections are the same as those in the first embodiment.
The third concrete implementation mode: referring to fig. 2 to 4, the angle a between the upper bracket 1-1 and the bracket holder 1-2 is 45 degrees.
Other components are connected in the same manner as in the first or second embodiment.
The fourth concrete implementation mode: the embodiment is described with reference to fig. 2 to 4, in the embodiment, the upper part of the upper end bracket 1-1 is provided with a connecting hole 1-1-1 matched with the pressure point 2, the side surface of the upper end bracket 1-1 is provided with a through hole 1-1-2, the end part of the upper end bracket 1-1 is provided with a through groove 1-1-3, and the through groove 1-1-3 extends from the end part of the upper end bracket 1-1 to the connecting hole 1-1-1; two counter bores 1-2-1 are arranged on the bracket seat 1-2. Other components and connection relationships are the same as those in the first, second or third embodiment.
The fifth concrete implementation mode: referring to fig. 5, the pressing point 2 of the present embodiment includes an upper cylinder 2-1, a lower cylinder 2-2, and a shoulder 2-3, wherein the upper cylinder 2-1 and the lower cylinder 2-2 are sequentially connected from top to bottom to form a whole, and the shoulder 2-3 is disposed on the upper cylinder 2-1.
The pressure point 2 is used as a supporting point and can automatically calibrate the center of the groove when being matched with a measuring point. The pressure point 2 is made of 45# steel, the heat treatment hardness is HRC40-45, the bearing material hardness is HRC60-61, the measuring surface Ra0.08um of the bearing channel is in contact with two points on the surface of the channel when the position of the measuring channel is measured, the part needs to rotate for a circle in the measuring process, and if the pressure point 2 is made of a material with higher hardness, the surface of the channel is easy to damage, and scratches are generated. The pressure point 2 is designed to be a cylindrical structure with an outer diameter phi of 14mm, and is located 1/2 of the depth of the channel by calculating the contact point of the pressure point and the channel. The rounded pressing point R0.5mm and Ra0.8um. Scratch on the surface of the channel is avoided. The lower cylinder 2-2 is matched with the side support connecting hole 1-1-1, and the pressing point is blackened to avoid generating corrosion. Other components and connections are the same as those of the first, second, third or fourth embodiments.
The sixth specific implementation mode: the embodiment is described with reference to fig. 6 to 7, the steel ball fulcrum 3 of the embodiment includes a steel ball support 3-1 and a steel ball 3-2, the steel ball support 3-1 is sequentially connected from left to right by a connecting section 3-1-1, a transition section 3-1-2 and a steel ball section 3-1-3, a blind hole 3-1-4 is formed in the lower surface of the steel ball section 3-1-3, and the steel ball 3-2 is pressed in the blind hole 3-1-4.
The diameter of the steel ball measuring point needs to be smaller than 2 times of the curvature radius of the groove, and an English 13/16 steel ball is selected to be pressed into the blind hole 3-1-4 and locked.
Other components and connection relationships are the same as those in the first, second, third, fourth or fifth embodiment.
The seventh embodiment: the embodiment is described with reference to fig. 6 to 7, in which the upper surface of the steel ball section 3-1-3 of the embodiment is provided with a through hole 3-1-5, and the through hole 3-1-5 extends to the blind hole 3-1-4. The through holes 3-1-5 have the following functions: the method is applied when the steel ball is hammered out and replaced after the steel ball measuring point is worn.
Other components and connection relationships are the same as those in the first, second, third, fourth, fifth or sixth embodiment.
The specific implementation mode is eight: referring to fig. 6 to 7, the connection segment 3-1-1 of the present embodiment is provided with an inclined plane B, and an included angle a1 between the inclined plane B and the horizontal plane is 6 °.
The steel ball fulcrum connecting section 3-1-1 is connected with a phi 14 hole in the side wall of the measuring instrument, a 6-degree inclined plane is milled at the outer diameter, and the 6-degree inclined plane is pressed through the end face of the screw, so that the influence of axial movement of the steel ball fulcrum on the measuring precision is avoided. The steel ball pivot is quenched and tempered by 45# steel, so that the steel ball pivot has good strength, plasticity and toughness and obtains good comprehensive mechanical properties.
Other components and connection relations are the same as those of the first, second, third, fourth, fifth, sixth or seventh embodiment.
The working principle is as follows:
the specific operation steps are as follows:
firstly, a pressure point 2 is arranged in a pressure point bracket 1, a bolt is screwed down to lock the pressure point 2, and the pressure point bracket 1 is screwed down and fixed on a bearing outer groove position measuring instrument by two countersunk head bolts;
secondly, smashing 13/16-inch steel balls 3-2 into blind holes 3-1-4 of steel ball fulcrums 3, inserting the two steel ball fulcrums 3 into side wall holes of a bearing outer groove position measuring instrument, adjusting the axial positions of the steel ball fulcrums to enable the side face (A) of the transition section 3-1-2 to be attached to the side wall of the measuring instrument, and screwing down a screw to enable the end face of the transition section 3-1-2 to be tightly pressed against the inclined plane B of the connecting section 3-1-1;
processing a bearing outer ring 4 according to the process requirement, wherein the curvature radius of a channel of the bearing outer ring 4 meets the process requirement, detecting the position of the channel of the bearing outer ring 4 by adopting a three-coordinate measuring machine, calibrating a channel position measuring point at the end face of the outer ring 4, and taking the bearing outer ring 4 as a channel position standard component;
fourthly, the measured groove position standard component is placed on the instrument, the standard component is moved axially, the steel ball 3-2 of the steel ball fulcrum 3 is positioned at the bottom of the groove, the pressure point 2 is positioned in the channel 4-1, and the whole supporting system is in a stable state;
inserting the torsion spring instrument into the instrument meter library, rotating the standard part in the circumferential direction to enable the torsion spring instrument point to be aligned with the standard part calibration point, subtracting the process dimension from the standard part dimension to obtain a counter table, measuring the groove position dimension, and rotating the pointer for one circle to swing within a groove swing Se value;
sixthly, finding three inspectors to measure 5 products, judging the repeatability and consistency of the measurement, wherein the data is as follows:
although the present invention has been described with reference to a preferred embodiment, it should be understood that various changes, substitutions and alterations can be made herein without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (8)
1. The utility model provides an integration asymmetric structure bearing channel measuring device, it includes bearing outer ditch position measuring instrument, its characterized in that: the measuring device comprises a pressure point support (1), a pressure point (2) and two steel ball fulcrums (3), wherein the pressure point support (1) and the two steel ball fulcrums (3) are connected with a bearing outer groove position measuring instrument, the two steel ball fulcrums (3) are respectively located on the upper side and the lower side of the pressure point support (1), the pressure point (2) is installed on the pressure point support (1), and the pressure point (2) is located between the two steel ball fulcrums (3).
2. The integrated asymmetric structure bearing channel measuring device as in claim 1, wherein: the pressure point support (1) is formed by sequentially connecting an upper end support (1-1) and a support base (1-2) into a whole from top to bottom.
3. The integrated asymmetric structure bearing channel measuring device as in claim 2, wherein: the angle (a) between the upper end bracket (1-1) and the bracket base (1-2) is 45 degrees.
4. An integral asymmetric structural bearing channel measuring device as claimed in claim 2 or 3, wherein: the upper part of the upper end support (1-1) is provided with a connecting hole (1-1-1) matched with the pressure point (2), the side surface of the upper end support (1-1) is provided with a through hole (1-1-2), the end part of the upper end support (1-1) is provided with a through groove (1-1-3), and the through groove (1-1-3) extends to the connecting hole (1-1-1) from the end part of the upper end support (1-1); two counter bores (1-2-1) are arranged on the bracket seat (1-2).
5. The integrated asymmetric structure bearing channel measuring device as in claim 1, wherein: the pressure points (2) comprise upper cylinders (2-1), lower cylinders (2-2) and shoulders (2-3), the upper cylinders (2-1) and the lower cylinders (2-2) are sequentially connected into a whole from top to bottom, and the shoulders (2-3) are arranged on the upper cylinders (2-1).
6. The integrated asymmetric structure bearing channel measuring device as in claim 1, wherein: the steel ball supporting point (3) comprises a steel ball support (3-1) and a steel ball (3-2), the steel ball support (3-1) is sequentially connected from left to right through a connecting section (3-1-1), a transition section (3-1-2) and the steel ball section (3-1-3), a blind hole (3-1-4) is formed in the lower surface of the steel ball section (3-1-3), and the steel ball (3-2) is pressed in the blind hole (3-1-4).
7. The integrated asymmetric structure bearing channel measuring device of claim 6, wherein: the upper surface of the steel ball section (3-1-3) is provided with a through hole (3-1-5), and the through hole (3-1-5) extends to the blind hole (3-1-4).
8. The integrated asymmetric structure bearing channel measuring device of claim 6, wherein: the connecting section (3-1-1) is provided with an inclined plane B, and the included angle (a1) between the inclined plane B and the horizontal plane is 6 degrees.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911384118.8A CN111089524A (en) | 2019-12-28 | 2019-12-28 | Integrated asymmetric-structure bearing channel measuring device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911384118.8A CN111089524A (en) | 2019-12-28 | 2019-12-28 | Integrated asymmetric-structure bearing channel measuring device |
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| CN111089524A true CN111089524A (en) | 2020-05-01 |
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| CN201911384118.8A Pending CN111089524A (en) | 2019-12-28 | 2019-12-28 | Integrated asymmetric-structure bearing channel measuring device |
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Citations (6)
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| CN101271039A (en) * | 2007-03-19 | 2008-09-24 | 洛阳德润精密机床轴承有限公司 | Angular contact ball bearing ferrule locking amount measurement method |
| CN102305583A (en) * | 2011-04-25 | 2012-01-04 | 大连联合风电轴承有限公司 | Instrument for measuring groove center distance and parallelism of large-scale bearing |
| CN102313532A (en) * | 2011-04-25 | 2012-01-11 | 大连联合风电轴承有限公司 | Instrument for measuring parallelism of opposite end faces of large-size bearing ring channels |
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| CN103512466A (en) * | 2012-06-21 | 2014-01-15 | 襄阳汽车轴承股份有限公司 | Serialized method for measuring groove diameters of inner and outer rings of noncircular-channel bearing |
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2019
- 2019-12-28 CN CN201911384118.8A patent/CN111089524A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101271039A (en) * | 2007-03-19 | 2008-09-24 | 洛阳德润精密机床轴承有限公司 | Angular contact ball bearing ferrule locking amount measurement method |
| CN102305583A (en) * | 2011-04-25 | 2012-01-04 | 大连联合风电轴承有限公司 | Instrument for measuring groove center distance and parallelism of large-scale bearing |
| CN102313532A (en) * | 2011-04-25 | 2012-01-11 | 大连联合风电轴承有限公司 | Instrument for measuring parallelism of opposite end faces of large-size bearing ring channels |
| CN102322779A (en) * | 2011-08-19 | 2012-01-18 | 洛阳Lyc轴承有限公司 | Measuring device for angular contact ball bearing outer ring hold depth and measuring method thereof |
| CN202582408U (en) * | 2012-02-14 | 2012-12-05 | 宁波市镇海银球轴承有限公司 | Simple platform-type trench position measuring instrument for bearing inner ring |
| CN103512466A (en) * | 2012-06-21 | 2014-01-15 | 襄阳汽车轴承股份有限公司 | Serialized method for measuring groove diameters of inner and outer rings of noncircular-channel bearing |
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Application publication date: 20200501 |