CN107655396B - Contact type online detection device for axial negative clearance of hub bearing - Google Patents
Contact type online detection device for axial negative clearance of hub bearing Download PDFInfo
- Publication number
- CN107655396B CN107655396B CN201710707413.7A CN201710707413A CN107655396B CN 107655396 B CN107655396 B CN 107655396B CN 201710707413 A CN201710707413 A CN 201710707413A CN 107655396 B CN107655396 B CN 107655396B
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- clamp splice
- hub bearing
- mounting panel
- micrometer
- clamping block
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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
- G01B7/00—Measuring arrangements characterised by the use of electric or magnetic techniques
- G01B7/14—Measuring arrangements characterised by the use of electric or magnetic techniques for measuring distance or clearance between spaced objects or spaced apertures
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M13/00—Testing of machine parts
- G01M13/04—Bearings
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- A Measuring Device Byusing Mechanical Method (AREA)
Abstract
The utility model provides a contact on-line measuring device of wheel hub bearing axial negative play, includes the magnetic force seat of installing on the work platform of riveter, the magnetic force seat facial make-up is equipped with the support, installs the mounting panel on the support, and the clamp splice has been connected with articulated mode to the mounting panel lateral wall, has been connected on the clamp splice and has been held the bars micrometer, and the measurement end of this bars micrometer upwards extends, has installed the traction electromagnet on the mounting panel, and this traction electromagnet passes through the connecting rod to be connected with the clamp splice, and this connecting rod one end is articulated with traction electromagnet installs, and the other end is articulated with the clamp splice installs, holds the measurement end of bars micrometer and supports against the transition cover, is equipped with annular electromagnet on this transition cover, is equipped with the spring between clamp splice and the mounting panel, and this spring one end is connected with the clamp splice, the other end is connected with the mounting panel. The invention has convenient operation and high test precision, ensures that the negative clearance formed by the hub bearing unit measured by the method after the riveting assembly is finished is in a reasonable range, and greatly prolongs the service life of the hub bearing unit.
Description
Technical Field
The invention belongs to the technical field of hub bearing detection, and particularly relates to a contact type online detection device for axial negative play of a hub bearing.
Background
The negative play is of great importance for the service life of the automobile hub bearing unit. Researches prove that the bearing capacity of the hub bearing unit can be improved by the interference formed by reasonable negative play, and the reserved quantity is provided for abrasion in the use process of the bearing, so that the service life of the hub bearing unit is greatly prolonged; however, too much negative play can dramatically increase the heat generation of the bearing during operation, which can lead to the bearing expanding and dying, and thus the bearing can fail quickly. The negative play of the hub bearing needs to be kept in a suitable range and high measurement accuracy is required.
At present, the measuring method of the negative clearance of the hub bearing unit in the bearing industry is to measure after riveting is finished, and the hub bearing unit with the negative clearance forms axial pretightening force, so that the existing measuring method cannot directly measure the negative clearance of the bearing unit with the axial pretightening force, various indirect measuring methods are complex in operation, the measuring result has low reliability, and the product quality and the service life of the hub bearing unit are seriously influenced.
In order to realize real-time online direct measurement of the negative clearance of the hub bearing unit in the riveting assembly process, the influence of elastic recovery of the riveted workpiece on the measurement accuracy of the negative clearance in the riveting assembly process is also considered, so that the measurement difficulty is further increased.
Disclosure of Invention
The invention aims to solve the technical problem that the contact type online detection device for the axial negative clearance of the hub bearing is convenient to operate and high in test precision, ensures that the negative clearance formed by the hub bearing unit measured by the method after riveting assembly is in a reasonable range, and greatly prolongs the service life of the hub bearing unit.
In order to solve the technical problems, the invention adopts the following technical scheme:
the utility model provides a contact on-line measuring device of wheel hub bearing axial negative play, includes the magnetic force seat of installing on the work platform of riveter, the magnetic force seat facial make-up is equipped with the support, installs the mounting panel on the support, and the clamp splice has been connected with articulated mode to the mounting panel lateral wall, has been connected on the clamp splice and has been held the bars micrometer, and the measurement end of this bars micrometer upwards extends, has installed the traction electromagnet on the mounting panel, and this traction electromagnet passes through the connecting rod to be connected with the clamp splice, and this connecting rod one end is articulated with traction electromagnet installs, the other end is articulated with the clamp splice and installs, holds the measurement end of bars micrometer and supports the transition cover, is equipped with annular electromagnet on this transition cover.
A spring is arranged between the clamping block and the mounting plate, one end of the spring is connected with the clamping block, the other end of the spring is connected with the mounting plate, and the spring is obliquely arranged and is obliquely arranged from the mounting plate to the clamping block from top to bottom.
The upper surface of the magnetic seat is provided with a cushion block, the bottom surface of the mounting plate is mounted on the cushion block, and the lower end of the bracket penetrates through the cushion block to be connected with the magnetic seat.
The upper part of the mounting plate is provided with a lug with an inclined plane, and the capacitance grid micrometer is provided with a stop block wedged with the inclined plane of the lug.
The clamping blocks are formed by a first clamping block and a second clamping block, the first clamping block and the second clamping block are in locking connection through bolts, and the lower part of the capacitance grid micrometer passes through and is fixed between the first clamping block and the second clamping block.
The mounting plate is provided with a boss, the clamping block is provided with a convex arm, and the convex arm is connected with the boss in a hinged mode through a deep groove ball bearing.
The mounting plate is provided with a clamping hook, the clamping block is provided with a blocking hook, one end of the spring is connected to the clamping hook, and the other end of the spring is connected to the blocking hook.
The mounting plate is provided with a clamping groove, the bracket passes through the clamping groove, the clamping groove of the bracket and the mounting plate is in clearance fit, the clamping groove is inserted with a locking bolt, and the locking bolt is locked to enable the mounting plate to be fastened with the bracket.
The two magnetic seats are arranged in parallel at intervals, two supports are vertically arranged on each magnetic seat, two capacitance grid micrometer are arranged on one side of the magnetic seat, one capacitance grid micrometer is arranged on the other side of the magnetic seat, and the three capacitance grid micrometer are distributed in an isosceles triangle arrangement.
One bracket on one magnetic seat is connected with one bracket of the other magnetic seat through a cross rod.
The invention has the following beneficial effects:
1. the invention combines the measuring process and the riveting process together, and intuitively reflects the change of the axial negative clearance of the hub bearing unit in the riveting process.
2. According to the invention, the negative clearance value change of the riveted workpiece is measured in real time through the grid-containing micrometers, so that the riveted workpiece is effectively prevented from being riveted and expanded.
3. According to the invention, by a 3-point measuring method, the centroid displacement change of the measured surface before riveting and after riveting is compared, and the measuring precision of the negative clearance can be effectively improved by the data processing of a computer;
4. the invention has simple structure, is convenient to install and disassemble, and improves the reliability of use.
Drawings
FIG. 1 is a schematic view of a three-dimensional structure of the invention assembled with a riveting machine;
FIG. 2 is an enlarged schematic view of the portion A of FIG. 1;
fig. 3 is a schematic diagram of the front view structure of fig. 1.
Detailed Description
The present invention is further described below with reference to the accompanying drawings for the convenience of understanding to those skilled in the art.
As shown in fig. 1, 2 and 3, the invention discloses a contact type on-line detection device for axial negative play of a hub bearing, which comprises a magnetic seat 2 arranged on a working platform 1 of a riveting machine, wherein a bracket 6 is arranged on the magnetic seat 2, a mounting plate 5 is arranged on the bracket 6, a clamping block 11 is connected to the side wall of the mounting plate 5 in a hinged manner, a grid-containing micrometer 8 is arranged on the clamping block 11, the measuring end of the grid-containing micrometer 8 extends upwards, a traction electromagnet 3 is arranged on the mounting plate 5, the traction electromagnet 3 is connected with the clamping block 11 through a connecting rod 12, one end of the connecting rod 12 is hinged with the traction electromagnet 3, the other end of the connecting rod is hinged with the clamping block 11, the measuring end of the grid-containing micrometer 8 abuts against a transition sleeve 9, and an annular electromagnet 10 is arranged on the transition sleeve 9. The two magnetic seats are arranged in parallel at intervals, two supports are vertically arranged on each magnetic seat, two grid-containing micrometers are arranged on the side where one magnetic seat is located, one grid-containing micrometer is arranged on the side where the other magnetic seat is located, the three grid-containing micrometers are distributed in an isosceles triangle arrangement mode, measuring ends of the three grid-containing micrometers are arranged on the same plane, the axes of the three grid-containing micrometers are parallel to the axis of the hub bearing to be riveted, and the three grid-containing micrometers are used for measuring the negative play of the hub bearing.
The traction electromagnet 3 drives the connecting rod 12 and then drives the clamping block 11 to deflect, so that the deflection of the grid micrometer is realized. When the capacitance grid micrometer is vertical, the measuring end of the capacitance grid micrometer is abutted against the transition sleeve, and the transition sleeve is positioned at the highest point. The measuring head of the capacitance grating micrometer is separated from the transition sleeve, and the deflection angle is usually 6-15 degrees and the stroke of the movable iron core of the traction electromagnet is controlled to be 4-12mm in consideration of the fact that the capacitance grating micrometer is a spring type self-resetting micrometer and the fact that the capacitance grating micrometer is prevented from touching a finished workpiece and a workbench during deflection.
The mounting plate 5 is provided with a clamping groove, the bracket passes through the clamping groove, the bracket 6 is in clearance fit with the clamping groove of the mounting plate 5, the clamping groove is inserted with a locking bolt 16, and the locking bolt 16 is locked to fasten the mounting plate 5 and the bracket 6. The height of the mounting plate can be adjusted by loosening the locking bolt, so that the height of the capacitance grid micrometer can be adjusted, and the measurement of hub bearings of various types can be conveniently applied.
In addition, a spring 15 is arranged between the clamping block 11 and the mounting plate 5, one end of the spring 15 is connected with the clamping block 11, the other end of the spring 15 is connected with the mounting plate 5, and the spring 15 is obliquely arranged from top to bottom from the mounting plate towards the clamping block. Through the spring, after the traction electromagnet drives the connecting rod to pull the clamping block to deflect, the spring is stretched to generate restoring elastic force to provide restoring power for restoring the clamping block, so that the restoring of the clamping block is facilitated.
The upper surface of the magnetic seat 2 is provided with a cushion block 4, the bottom surface of a mounting plate 5 is mounted on the cushion block 4, and the lower end of a bracket 6 penetrates through the cushion block 4 to be connected with the magnetic seat 2. Through this cushion, further highly fix a position the mounting panel, the assembly is more reliable.
The upper part of the mounting plate 5 is provided with a lug 13 with an inclined plane, and a stop block 14 wedged with the inclined plane of the lug 13 is attached to the grid-containing micrometer 8. When the capacitance micrometer 8 is vertical and the measuring end of the capacitance micrometer is abutted against the transition sleeve 9, the check block 14 and the convex block 13 are mutually wedged and are in a horizontal state, namely the angle between the convex block and the check block is 180 degrees after the convex block is wedged.
In addition, the clamping block 11 is composed of a first clamping block 1101 and a second clamping block 1102, the first clamping block 1101 and the second clamping block 1102 are connected through locking by bolts, and the lower part of the capacitance grid micrometer passes through and is fixed between the first clamping block and the second clamping block. The locking is carried out through the bolt, so that the adjustment is convenient.
The mounting plate 5 is provided with a boss 17, the clamping block 11 is provided with a convex arm 18, the convex arm 18 and the boss 17 are connected in a hinged manner through a deep groove ball bearing 19, generally two convex walls are arranged, and the boss is positioned between the two convex arms and then is hinged. Furthermore, the boss on the mounting plate is located directly below the bump.
The mounting plate is provided with a clamping hook, the clamping block is provided with a blocking hook, one end of the spring is connected to the clamping hook, and the other end of the spring is connected to the blocking hook. The clamping hook and the blocking hook are utilized to facilitate the installation of the spring.
In addition, one bracket 6 on one magnetic seat 2 is connected with one bracket of the other magnetic seat through a cross rod 7, so that the balance of the brackets on two sides can be ensured.
In the invention, a magnetic seat is arranged on a working platform of a riveting machine, and a hub bearing to be riveted is assembled at a processing position. And placing the transition sleeve on the small inner ring of the hub bearing to be riveted, and electrifying the annular electromagnet, wherein the transition sleeve is adsorbed on the small inner ring of the hub bearing to be riveted. And then starting the riveting equipment to press the hub bearing. When the pressure value to be riveted is set to be 200N, the riveting equipment starts to rivet the hub bearing. And simultaneously, the traction electromagnet is started, and along with riveting, the hub bearing can be pressed downwards to move downwards for a certain stroke distance. When the pressure value reaches 200N, data A1, B1 and C1 of three capacitance grid micrometers are recorded respectively, in the process, the traction electromagnet drives the clamping block to deflect towards the direction away from the hub bearing through the connecting rod after being electrified, so that the collision between the measuring end of the capacitance grid micrometers and the transition sleeve in the moving process of the workbench can be avoided, the measurement is influenced, and the spring is stretched to generate restoring elasticity in the deflecting process. After the riveting process is combined, when the pressure value reaches a preset value of 200N again, recording data A2, B2 and C2 of the three capacitance grid micrometers respectively, and calculating differences of centroids of A1, B1, C1, A2, B2 and C2 in the axial direction of the hub bearing, wherein the differences are negative play of the hub bearing. The traction electromagnet adaptively drives the capacitance grating micrometer to deflect in the whole riveting process, so that collision with the transition sleeve is avoided. The whole process is contact type measurement, the measurement is more accurate, and the operation is convenient.
It should be noted that the above description is not intended to limit the invention, and any obvious substitutions are within the scope of the invention without departing from the inventive concept thereof.
Claims (6)
1. The utility model provides a hub bearing axial negative clearance's contact on-line measuring device, including installing the magnetic force seat on the work platform of riveting machine, its characterized in that, magnetic force seat facial make-up is equipped with the support, install the mounting panel on the support, the mounting panel lateral wall has been installed the clamp splice with articulated mode, be equipped with on the clamp splice and hold bars micrometer, this measurement end of holding bars micrometer upwards extends, the mounting panel facial make-up is equipped with traction electromagnet, this traction electromagnet passes through the connecting rod to be connected with the clamp splice, this connecting rod one end is articulated with traction electromagnet installs, the other end is articulated with the clamp splice, hold bars micrometer's measurement end and support against the transition cover, be equipped with annular electromagnet on this transition cover, be equipped with the spring between clamp splice and the mounting panel, this spring one end is connected with the mounting panel, the spring slope sets up to from the mounting panel to the clamp splice, be equipped with the boss on the mounting panel, be equipped with the convex arm on the clamp splice, this convex arm is connected with articulated mode through deep groove ball bearing between this boss, two magnetic force seats total are provided with two, this two magnetic force seats interval parallel distribution, every magnetic force seat is equipped with one of two and two sides of the two sets of vertical bars of two side of the micro-meter, one of the two sets of the three support that hold bars are arranged, one is equipped with one and one of two sets of one and is arranged with a three and is arranged with a magnetic force meter, and is arranged to hold one and has a three, and one magnetic force meter.
2. The device for on-line detection of axial negative play of hub bearing according to claim 1, wherein the upper surface of the magnetic base is provided with a cushion block, the bottom surface of the mounting plate is attached to the cushion block, and the lower end of the bracket is connected with the magnetic base through the cushion block.
3. The device for on-line detection of axial negative play of hub bearing according to claim 2, wherein the upper part of the mounting plate is provided with a bump having an inclined surface, and the grid-containing micrometer is attached with a stopper wedged with the inclined surface of the bump.
4. A contact type on-line detecting device for axial negative play of hub bearing according to claim 3, wherein the clamping blocks are composed of a first clamping block and a second clamping block, the first clamping block and the second clamping block are connected through locking by bolts, and the lower part of the grid-containing micrometer passes through and is fixed between the first clamping block and the second clamping block.
5. The device for on-line detection of axial negative play of hub bearing according to claim 4, wherein the mounting plate is provided with a hook, the clamping block is provided with a catch, and one end of the spring is attached to the hook and the other end is attached to the catch.
6. The device for on-line detection of axial negative play of hub bearing according to claim 5, wherein the mounting plate is provided with a clamping groove, the bracket passes through the clamping groove, so that the bracket is in clearance fit with the clamping groove of the mounting plate, and a locking bolt is inserted into the clamping groove and locked to fasten the mounting plate with the bracket.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710707413.7A CN107655396B (en) | 2017-08-17 | 2017-08-17 | Contact type online detection device for axial negative clearance of hub bearing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710707413.7A CN107655396B (en) | 2017-08-17 | 2017-08-17 | Contact type online detection device for axial negative clearance of hub bearing |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107655396A CN107655396A (en) | 2018-02-02 |
| CN107655396B true CN107655396B (en) | 2023-07-28 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710707413.7A Active CN107655396B (en) | 2017-08-17 | 2017-08-17 | Contact type online detection device for axial negative clearance of hub bearing |
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| Country | Link |
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| CN (1) | CN107655396B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111347246B (en) * | 2020-03-30 | 2024-06-25 | 江门市科达仪表有限公司 | A all-in-one for vehicle instrument assembly and detection |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DD217307A1 (en) * | 1983-09-08 | 1985-01-09 | Juergen Stoetzer | DEVICE FOR MEASURING THE RADIAL STORAGE AIR OF RIBBED BEARINGS |
| WO2005073667A1 (en) * | 2004-01-27 | 2005-08-11 | Siemens Corporate Research, Inc. | Inductive apparatus and method for measuring compressor blade tip clearance in a gas turbine engine |
| CN203116723U (en) * | 2013-04-03 | 2013-08-07 | 广东富华工程机械制造有限公司 | Axial play measuring instrument for automobile hub bearing |
| CN204008143U (en) * | 2014-07-31 | 2014-12-10 | 苏州施奇尔汽车技术有限公司 | Hub spindle carries play checkout equipment |
| CN106871846A (en) * | 2016-12-30 | 2017-06-20 | 韶关学院 | The online direct measuring method of negative clearance when a kind of hub-bearing unit riveted is assembled |
-
2017
- 2017-08-17 CN CN201710707413.7A patent/CN107655396B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DD217307A1 (en) * | 1983-09-08 | 1985-01-09 | Juergen Stoetzer | DEVICE FOR MEASURING THE RADIAL STORAGE AIR OF RIBBED BEARINGS |
| WO2005073667A1 (en) * | 2004-01-27 | 2005-08-11 | Siemens Corporate Research, Inc. | Inductive apparatus and method for measuring compressor blade tip clearance in a gas turbine engine |
| CN203116723U (en) * | 2013-04-03 | 2013-08-07 | 广东富华工程机械制造有限公司 | Axial play measuring instrument for automobile hub bearing |
| CN204008143U (en) * | 2014-07-31 | 2014-12-10 | 苏州施奇尔汽车技术有限公司 | Hub spindle carries play checkout equipment |
| CN106871846A (en) * | 2016-12-30 | 2017-06-20 | 韶关学院 | The online direct measuring method of negative clearance when a kind of hub-bearing unit riveted is assembled |
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| Publication number | Publication date |
|---|---|
| CN107655396A (en) | 2018-02-02 |
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