CN110174042B - Inner channel measuring device for angular contact ball bearing of automobile steering device - Google Patents

Inner channel measuring device for angular contact ball bearing of automobile steering device Download PDF

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Publication number
CN110174042B
CN110174042B CN201910466798.1A CN201910466798A CN110174042B CN 110174042 B CN110174042 B CN 110174042B CN 201910466798 A CN201910466798 A CN 201910466798A CN 110174042 B CN110174042 B CN 110174042B
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China
Prior art keywords
radial
hole
ball bearing
angular contact
contact ball
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CN110174042A (en
Inventor
宋政灿
张美山
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SANMENXIA ZHONGYUAN MEASURING INSTRUMENT CO Ltd
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SANMENXIA ZHONGYUAN MEASURING INSTRUMENT CO Ltd
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    • GPHYSICS
    • G01MEASURING; TESTING
    • G01BMEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B7/00Measuring arrangements characterised by the use of electric or magnetic means
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01BMEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B7/00Measuring arrangements characterised by the use of electric or magnetic means
    • G01B7/003Measuring arrangements characterised by the use of electric or magnetic means for measuring position, not involving coordinate determination

Abstract

The invention discloses an inner channel measuring device of an angular contact ball bearing of an automobile steering device, which comprises a workbench and a base, wherein the base is positioned at the lower side of the workbench and is arranged in parallel, the workbench is connected with the base through a base upright post, a through hole is formed in the workbench, a positioning table is arranged on the upper end surface of the workbench, an installation table for installing the angular contact ball bearing is arranged on the positioning table, an installation hole is formed in the installation table, the installation hole and the through hole are coaxially arranged, an axial pressing component is axially arranged on the upper end surface of the workbench along the through hole, a radial pressing component for positioning the angular contact ball bearing is radially arranged on the upper end surface of the workbench along the through hole, 4 radial measuring units are arrayed on the lower end surface of the workbench along the circumferential direction of the through hole, an axial floating mechanism is arranged on the lower side of each radial measuring unit, and acts on each radial measuring unit to enable each axial floating; the bearing inner channel M value measurement device is simple in structure and exquisite in design, and helps manufacturers to accurately group the M value according to the measured value by measuring the M value of the inner channel of the bearing.

Description

Inner channel measuring device for angular contact ball bearing of automobile steering device
Technical Field
The invention relates to the technical field of bearing detection and measurement, in particular to an inner channel measuring device for an angular contact ball bearing of an automobile steering gear.
Background
With the rapid development of the automobile industry in China, automobile parts and parts products can not meet the requirements of the automobile bearing market only in the processing form of imitating the outline, so that the design and the improvement are urgent; the bearing of the automobile steering gear has the same problems, and due to the particularity of the bearing, the production of the bearing breaks through the traditional deep groove ball bearing processing technology, and the development of the detection technology of the M value of the inner groove of the bearing becomes one of important ways for improving the processing quality of the product and meeting the localization requirement of the automobile; however, domestic peers have little involvement in the detection of such bearings and have little reference for their control; therefore, a special checking fixture for the angular contact ball bearing of the automobile steering device is urgently needed to simulate the installation condition to realize the detection of the product; as shown in FIG. 1, the part drawing of the angular contact ball bearing of the automobile steering gear is as follows: the parts are divided into an upper outer ring and a lower outer ring.
The utility model discloses an angular contact ball bearing groove position measuring device, which comprises a base, wherein the number of the authorized bulletin is CN208187281U, the date of the authorized bulletin is 2018.12.04, and an instrument assembly positioned at one end of the base, and a rotating device positioned at the other end of the base, wherein the rotating device comprises a supporting seat, a rotating shaft and a rotating disc, the bottom of the supporting seat is fixedly connected with the base, the rotating shaft is positioned at the top of the supporting seat and transversely penetrates through the supporting seat, one end of the rotating shaft extends to the instrument component, a tensioning device is arranged on the rotating shaft, a thread is arranged at one end of the rotating shaft close to the instrument assembly, the rotating disc is fixed at the other end of the rotating shaft, the rotating shaft is rotatably connected with the supporting seat, the angular contact ball bearing groove position measuring device has the advantages of reasonable structure, convenience in use and high measuring efficiency.
The utility model discloses a be used for detecting the inner channel of angular contact ball bearing inner circle, measure relatively fairly simplely, and then do not relate to the measurement of inner channel on angular contact ball bearing's the outer lane.
Disclosure of Invention
The technical scheme adopted by the invention for solving the problems is as follows: an inner channel measuring device of an angular contact ball bearing of an automobile steering device comprises a workbench and a base which is arranged at the lower side of the workbench in parallel, the workbench and the base are connected through a base upright post, the workbench is provided with a through hole, the upper end surface of the workbench is provided with a positioning table, the positioning table is provided with an installation table for installing an angular contact ball bearing, the mounting table is provided with a mounting hole which is coaxial with the through hole, the upper end surface of the workbench is axially provided with an axial pressing component for pressing the angular contact ball bearing along the through hole, the upper end surface of the workbench is radially provided with a radial pressing component for positioning the angular contact ball bearing along the through hole, the lower end surface of the workbench is arrayed with 4 radial measuring units along the circumferential direction of the through hole, and an axial floating mechanism is arranged on the lower side of the radial measuring unit and acts on the radial measuring unit to enable the radial measuring unit to axially float.
Preferably, the axial compresses tightly the subassembly and includes the installation stand of being connected with the workstation up end, and the installation stand is installed along the through-hole axial and is compressed tightly the cylinder, compresses tightly the cylinder lower extreme and installs the portion of compressing tightly, compresses tightly the cylinder intercommunication and has compressing tightly the cylinder hand control valve.
Preferably, the pressing part comprises a pressing plate, and elastic plungers are circumferentially arrayed on the pressing plate.
Preferably, the radial compression assembly comprises a radial positioning assembly and a radial jacking assembly, the radial positioning assembly comprises a stopper and a fine adjustment device, the stopper is radially mounted along the through hole, the fine adjustment device is mounted on the upper side of the stopper, the stopper compresses the angular contact ball bearing through a first compression ball, the fine adjustment device comprises a fine adjustment seat and a lever mounted on the upper side of the fine adjustment seat, one end of the lever compresses the angular contact ball bearing through a second compression ball, the other end of the lever is provided with a differential head, the differential head is arranged in parallel with the axis of the through hole, and the radial positioning assembly comprises an X-direction positioning assembly and a Y-direction positioning assembly; the radial tightening assembly comprises a tightening cylinder and a tightening sliding block which is arranged along the radial direction of the through hole, one end of the tightening sliding block is connected with the other end of the angular contact ball bearing, and the tightening cylinder is communicated with a hand control valve of the tightening cylinder.
Preferably, the lever comprises a supporting portion and a fine adjustment portion, the fine adjustment portion is L-shaped and is buckled on the supporting portion, the fine adjustment portion is connected with the supporting portion at the L-shaped bending position, and gaps are reserved between two ends of the L-shaped bending position and the fine adjustment portion.
Preferably, the radial measuring unit comprises a radial telescopic mechanism arranged along the radial direction of the through hole and a radial leaf spring mechanism arranged on the lower side of the radial telescopic mechanism;
the radial leaf spring mechanism comprises a fixed seat and a movable seat which are arranged in parallel at intervals along the radial direction of a through hole, leaf springs for connecting the fixed seat and the movable seat are respectively and correspondingly arranged at the two ends of the fixed seat and the two ends of the movable seat, the leaf springs are fixed on the fixed seat and the movable seat through end pressing plates, the length of the leaf springs is arranged along the axial direction of the through hole, an installation part extends from one side, close to the movable seat, of the fixed seat, a detection part and a positioning part extend from one side, close to the fixed seat, of the movable seat, the installation part is located between the detection part and the positioning part, the detection part is arranged close to the through hole, a measurement cylinder is arranged between the installation part and the detection part, the measurement cylinder is communicated with a measurement cylinder manual control valve, a precision inductance sensor is arranged on the installation part, the detection end of the precision inductance sensor is in contact connection with the detection part during detection, and a reset spring is arranged between an installation upright post and the positioning part;
the radial telescopic mechanism comprises an L-shaped telescopic part, one end of the L-shaped telescopic part is connected with the upper end face of the sliding seat, the other end of the L-shaped telescopic part extends into the through hole and is provided with a detection part, and the detection part is arranged on one side close to the angular contact ball bearing.
Preferably, the detection part comprises a measuring rod, one end of the measuring rod is connected with the L-shaped telescopic part, and the other end of the measuring rod is provided with a detection ball.
Preferably, the axial floating mechanism is installed on the lower side of the radial measuring unit through a first connecting plate and connected with the base through a second connecting plate, a floating spring is installed between the axial floating mechanism and the base, and a distance is reserved between the axial floating mechanism and the base. The axial floating mechanism comprises an axial leaf spring mechanism;
axial leaf spring mechanism includes along through-hole axial interval parallel arrangement's fixing base and removal seat, and the both ends of fixing base and the both ends of removing the seat correspond respectively and install the leaf spring of connecting the fixing base and removing the seat, and the leaf spring passes through the end clamp plate to be fixed on the fixing base with remove the seat, leaf spring length radially sets up along the through-hole, the fixing base is close to remove seat one side and extends there is the installation department, it has detection portion and location portion to remove the seat to be close to one side extension of fixing base, and the installation department is located between detection portion and the location portion, install the reset spring between installation stand and the location portion.
Preferably, middle pressing plates are installed on the upper side and the lower side of the leaf spring, and a space is reserved between the middle pressing plates and the two fixed ends of the leaf spring.
The invention has the following beneficial effects:
1. the invention relates to a measuring device for an inner channel of an angular contact ball bearing of an automobile steering device, which has the advantages of simple structure and exquisite design, the size of an M value of the inner channel of the steering device bearing is measured by a high-precision inductive sensor, a detection value is output by an electronic column, the problems of high measuring difficulty and low measuring precision of the inner channel of the angular contact ball bearing are solved, a manufacturer can be helped to accurately group the inner channel of the angular contact ball bearing according to the measured value by the measured inner channel of the angular contact ball bearing, the corresponding inner ring of the angular contact ball bearing is installed in a matched mode, and the problem of repeated trial assembly is solved.
2. In order to ensure the measurement accuracy of the inner channel of the angular contact ball bearing of the automobile steering device, the invention is provided with the fine adjustment device, and the concentricity of the angular contact ball bearing and the through hole is ensured by adjusting the differential head of the fine adjustment device, so that certain positioning accuracy is improved, and the measurement accuracy requirement of the angular contact ball bearing is met.
3. In order to accurately measure the numerical value of the groove in the angular contact ball bearing of the automobile steering device, the angular contact ball bearing of the automobile steering device needs to be accurately positioned.
Drawings
FIG. 1 is a sectional view of an angular contact ball bearing of an automotive steering gear;
FIG. 2 is a side view of the present invention;
FIG. 3 is a front view of the present invention;
FIG. 4 is a top view of the present invention;
FIG. 5 is a cross-sectional view taken along line A-A of the present invention;
FIG. 6 is a cross-sectional view taken along line B-B of the present invention;
FIG. 7 is an enlarged view of a portion of the present invention at A;
fig. 8 is a cross-sectional view of the leaf spring mechanism of the present invention.
Detailed Description
The invention is further described below with reference to the accompanying drawings.
As shown in fig. 1, the outer ring of the angular contact ball bearing of the automobile steering gear aimed by the invention is composed of an upper outer ring a and a lower outer ring b (the upper outer ring and the lower outer ring of the outer ring are defined in an installation state), as shown in fig. 2-3, an inner channel measuring device of the angular contact ball bearing of the automobile steering gear comprises a workbench 1 and a base 10 which is positioned at the lower side of the workbench 1 and arranged in parallel, the workbench 1 is connected with the base 10 through a base upright post 9, a through hole 11 is arranged on the workbench 1, 4 through grooves which are distributed along the radial direction of the through hole 11 are arrayed on the circumference of the workbench 1, the through grooves are communicated with the through hole 11, a positioning table 2 is fixedly installed on the upper end face of the workbench 1, the positioning table 2 is installed above the through hole 11, an installation table for installing the angular contact ball bearing is arranged on the positioning table 2, preferably, the installation table is circular, and an installation hole is arranged on the installation table, the mounting hole and the through hole 11 are coaxially arranged, the preferred mounting hole is smaller than the through hole 11, an axial compression assembly 4 used for compressing the angular contact ball bearing is axially installed on the upper end face of the workbench 1 along the through hole 11, a radial compression assembly 3 used for positioning the angular contact ball bearing is radially installed on the upper end face of the workbench 1 along the through hole 11, 4 radial measuring units 5 are arrayed on the lower end face of the workbench 1 along the circumferential direction of the through hole 11, the radial measuring units 5 are installed in a matched mode with the through grooves and can move along the through grooves, an axial floating mechanism 6 is installed on the lower side of the radial measuring units 5 through a first connecting plate 7, the axial floating mechanism 6 is connected with the base 10 through a second connecting plate 8, a floating spring is installed between the axial floating mechanism 6 and the base 10, and the axial floating mechanism 6 and the base 10 are provided with intervals.
As shown in fig. 4-7, in order to axially compress the angular contact ball bearing along the through hole 11, the axial compression assembly 4 includes a mounting pillar 42 connected to the upper end surface of the worktable 1, preferably, the mounting pillar 42 is L-shaped, a compression cylinder 43 is axially mounted on the mounting pillar 42 along the through hole 11, a compression part is mounted at the lower end of the compression cylinder 43, and the compression cylinder 43 is communicated with a manual valve 41 of the compression cylinder 43 for controlling the compression cylinder 43 to operate.
As shown in fig. 4-7, in order to protect the angular contact ball bearing and ensure the pressing effect, the pressing portion includes a pressing plate 44, and a plurality of elastic plungers 45 are circumferentially arrayed on the pressing plate 44, preferably, the number of the elastic plungers 45 is 3, and the selected plunger model is BPRM 8.
As shown in fig. 4-8, in order to ensure that the angular contact ball bearing can be positioned radially and arranged concentrically with the through hole 11, the radial pressing assembly 3 comprises a radial positioning assembly and a radial pressing assembly 33,
the radial positioning assembly comprises an X-direction positioning assembly 31 and a Y-direction positioning assembly 32, and can realize the adjustment of the upper outer ring of the X-direction angular contact ball bearing and the Y-direction angular contact ball bearing, the X-direction positioning assembly 31 and the Y-direction positioning assembly 32 are both composed of positioning assemblies, the positioning assembly comprises a stop 313 and a fine adjustment device 314, the stop 313 is installed along the radial direction of a through hole 11, the fine adjustment device 314 is installed on the upper side of the stop 313, the stop 313 is fixedly installed on the positioning table 2, preferably, a stop 313 groove for accommodating the stop 313 is arranged on the positioning table 2, the stop 313 grooves are distributed along the radial direction of the through hole 11, the stop 313 presses the lower outer ring of the angular contact ball bearing through a first pressing ball 312, the fine adjustment device 314 comprises a fine adjustment seat 316 and a lever installed on the upper side of the fine adjustment seat 316, the fine adjustment seat 316 is fixedly installed on the positioning table 2, one end of the lever presses the upper outer ring of the angular contact ball bearing along the radial direction of the through a second pressing ball 311, the other end of the lever is provided with a differential head 315, the differential head 315 is arranged parallel to the axis of the through hole 11, and the lever is adjusted by screwing the differential head 315, so that the other end of the lever pushes the upper outer ring of the angular contact ball bearing to move through a second compression ball 311, the upper outer ring of the angular contact ball bearing is concentric with the through hole 11, and the measurement precision is ensured;
the radial tightening assembly 33 comprises a tightening cylinder 335 and a tightening slider 334 arranged along the radial direction of the through hole 11, one end of the tightening slider 334 is pressed against the angular contact ball bearing, the other end of the tightening slider is connected with the tightening cylinder 335, and the tightening cylinder is communicated with a tightening cylinder 335 manual valve 331; preferably, an upper top column 332 and a lower top column 336 are radially installed on the tightening slider 334 along the through hole 11, the upper top column 332 is used for tightening an upper outer ring of the angular contact ball bearing, the lower top column 336 is used for tightening a lower outer ring of the angular contact ball bearing, adjusting screws 333 are coaxially installed at non-tightening ends of the upper top column 332 respectively, the adjusting screws 333 are in threaded connection with the tightening slider 334, a top column spring is installed between the adjusting screws 333 and the upper top column 332, preferably, mounting grooves are formed at tightening ends of the upper top column 332 and the lower top column 336, and an upper tightening ball and a lower tightening ball are installed in the mounting grooves of the upper top column 332 and the lower top column 336 respectively.
As shown in fig. 4-8, in order to better achieve the fine adjustment function of the upper outer ring of the angular contact ball bearing, the lever includes a supporting portion 3141 and a fine adjustment portion 3142, the fine adjustment portion 3142 is L-shaped, the fine adjustment portion 3142 is fastened on the supporting portion 3141, the fine adjustment portion 3142 is connected with the supporting portion 3141 at an L-shaped bent portion, gaps are left between two ends of the L-shaped bent portion of the fine adjustment portion 3142 and the supporting portion 3141, by screwing the fine adjustment head 315, the fine adjustment portion 3142 takes the connection between the fine adjustment portion 3142 and the supporting portion 3141 as a fulcrum, the fine adjustment head 315 presses down the fine adjustment portion 3142, and the gap between the fine adjustment portion 3142 at the end where the fine adjustment head 315 is located and the supporting portion 3141 is reduced, so as to increase the gap between the other end of the fine adjustment portion 3142 and the supporting portion 3141, so that the fine adjustment portion 3142 pushes the upper outer ring of the angular contact ball bearing to move, thereby achieving the fine adjustment function.
As shown in fig. 4-8, in order to accurately measure the size of the channel in the angular contact ball bearing, the radial measuring unit 5 comprises a radial telescoping mechanism 51 arranged along the radial direction of the through hole 11 and a radial leaf spring mechanism 52 arranged at the lower side of the radial telescoping mechanism 51;
the radial leaf spring mechanism 52 comprises a fixed seat 527 and a movable seat 521 which are arranged in parallel at radial intervals along the through hole 11, two ends of the fixed seat 527 and two ends of the movable seat 521 are respectively and correspondingly provided with a leaf spring 524 connected with the fixed seat 527 and the movable seat 521, the leaf spring 524 is fixed on the fixed seat 527 and the movable seat 521 through an end pressure plate 526, the length of the leaf spring 524 is arranged along the axial direction of the through hole 11, a mounting part 5271 extends from one side, close to the movable seat 521, of the fixed seat 527, a detection part 5211 and a positioning part 5212 extend from one side, close to the fixed seat 527, of the movable seat 521, the mounting part 5271 is positioned between the detection part 5211 and the positioning part 5212, the detection part 5211 is arranged close to the through hole 11, a measurement cylinder 515 is arranged between the mounting part 5271 and the detection part 5211, the measurement cylinder 515 is communicated with a manual valve of the measurement cylinder 515, the measurement cylinder 515 can drive a radial telescopic mechanism 51 to move along the through hole 11 in a radial direction, the measurement cylinder 515 drives the telescopic mechanism to retract along the through hole 11 after detection, the mounting portion 5271 is provided with a precision inductance sensor 514, the detection end of the precision inductance sensor 514 is in contact connection with the detection portion 5211 during detection, and the precision inductance sensor 514 is communicated with the electronic column instrument to view a measured value through the electronic column instrument; a return spring 522 is installed between the mounting column 42 and the positioning portion 5212, and when an inner channel of the angular contact ball bearing is detected, the return spring 522 indirectly acts on the moving seat 521, so that the telescopic mechanism is radially expanded along the through hole 11, and the measurement of the radial measuring unit 5 on the angular contact ball bearing is completed.
Radial telescopic machanism 51 includes L shape pars contractilis 513, and slide holder up end is connected to L shape pars contractilis 513 one end, and the other end stretches into in the through-hole 11 and installs detection portion 5211, detection portion 5211 is installed and is being close to angular contact ball bearing one side, detects ball 511 for better realization and detects the interior channel of angular contact ball bearing, and is preferred, detection portion 5211 includes measuring staff 512, measuring staff 512 one end is connected with L shape pars contractilis 513, and detection ball 511 is installed to the other end, detects ball 511 during the detection and places and lay bearing ball department at angular contact ball bearing outer lane and measure the interior channel of angular contact ball bearing.
4-8, in order to realize that the detecting ball 511 can axially float and can be completely clamped into the channel in the angular contact ball bearing, the axial floating mechanism 6 comprises a radial leaf spring mechanism; radial leaf spring mechanism includes along 11 axial interval parallel arrangement's of through-hole fixing base 527 and removal seat 521, and the both ends of fixing base 527 and the both ends of removing seat 521 correspond respectively and install the leaf spring 524 of connecting fixing base 527 and removal seat 521, and leaf spring 524 passes through end clamp plate 526 to be fixed on fixing base 527 and removal seat 521, leaf spring 524 length is along 11 radial settings of through-hole, fixing base 527 is close to and removes seat 521 one side and extends there is installation department 5271, it has detection portion 5211 and location portion 5212 to remove seat 521 and extend near fixing base 527 one side, and installation department 5271 is located between detection portion 5211 and the location portion 5212, install reset spring 522 between installation stand 42 and the location portion 5212, realize that telescopic machanism radially contracts along through-hole 11 to accomplish the detecting element right.
As shown in fig. 4 to 8, in order to realize that the radial measuring unit 5 can realize small radial and axial floating, the upper and lower sides of the leaf spring 524 are provided with the middle pressing plate 525, and the middle pressing plate 525 is spaced from the two fixed ends of the leaf spring 524.
The working process of the invention is as follows:
the measuring device needs to be calibrated before the measurement of the measuring device of the inner channel of the angular contact ball bearing of the automobile steering device, a comparative measurement method is adopted for calibration, a standard part is selected for measurement, each path of sensor is calibrated, the zero value of each path of sensor during calibration is displayed, the measurement accuracy is ensured, and the measurement is carried out after the calibration is finished.
During measurement, the outer ring of the angular contact ball bearing workpiece is positioned, the angular contact ball bearing workpiece is placed on the checking fixture positioning table 2, the angular contact ball bearing workpiece is manually abutted against the X-direction pressing component and the Y-direction pressing component respectively, positioning is carried out by the aid of the stop 313 and the lever contact fine adjustment device 314 of the fine adjustment device 314, the manual valve 331 of the jacking cylinder 335 is manually opened, the manual valve 331 of the jacking cylinder 335 is controlled by the manual valve 331 of the jacking cylinder 335 to push the jacking sliding block 334 to jack the outer ring of the angular contact ball bearing workpiece, and radial pressing positioning is completed; after radial pressing and positioning are completed, a worker manually opens the manual valve 41 of the pressing cylinder 43, the manual valve 41 of the pressing cylinder 43 controls the pressing cylinder 43, the pressing cylinder 43 drives the pressing plate 44 to axially move, the elastic plunger 45 on the pressing plate 44 presses the outer ring of the angular contact ball bearing workpiece, and axial positioning of the outer ring of the angular contact ball bearing workpiece is completed at the moment.
After positioning is completed, a manual valve of the measuring cylinder 515 is manually opened, the measuring cylinder 515 contracts, the pre-pressure of the reset spring 522 drives the sliding seat to move, so that the telescopic mechanism is driven to radially open along the through hole 11, the detecting ball 511 of the telescopic mechanism is clamped into the position where the bearing ball is placed on the outer ring of the angular contact ball bearing workpiece, as the radial leaf spring mechanism 52 and the radial leaf spring mechanism are provided with the leaf spring 524, the telescopic mechanism can float along the radial direction and the axial direction of the through hole 11, it is ensured that the detecting ball 511 can roll into the position where the bearing ball is placed on the outer ring of the angular contact ball bearing workpiece, at the moment, the precise inductive sensor 514 is in contact with and connected with the detecting part 5211, detection data can be displayed on the electronic column measuring instrument, and measurement of a channel in the outer ring of the angular contact ball bearing workpiece is completed.
During measurement, in order to achieve measurement accuracy, the position of an upper outer ring of an angular contact ball bearing workpiece needs to be adjusted, the differential head 315 is screwed manually, the fine adjustment part 3142 takes the joint of the fine adjustment part 3142 and the supporting part 3141 as a fulcrum, the fine adjustment part 3142 is pressed down by the differential head 315, the gap between the fine adjustment part 3142 and the supporting part 3141 at the end where the differential head 315 is located is reduced, and therefore, the gap between the other end of the fine adjustment part 3142 and the supporting part 3141 is increased, so that the fine adjustment part 3142 pushes the upper outer ring of the angular contact ball bearing to move, and the upper outer ring and the lower outer ring of the angular contact ball bearing are concentric.
The present embodiment is not intended to limit the shape, material, structure, etc. of the present invention in any way, and any simple modification, equivalent change and modification made to the above embodiments according to the technical spirit of the present invention are within the scope of the technical solution of the present invention.
In the description of the present invention, it is to be understood that the terms "central", "longitudinal", "lateral", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate orientations or positional relationships based on those shown in the drawings, and are used only for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be considered as limiting the scope of the present invention.
If the terms "first," "second," etc. are used herein to define parts, those skilled in the art will recognize that: the use of "first" and "second" is merely for convenience in describing the invention and to simplify the description, and unless otherwise stated the above words are not intended to have a special meaning.
Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: it is to be understood that modifications may be made to the technical solutions described in the foregoing embodiments, or equivalents may be substituted for some of the technical features thereof, but such modifications or substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims (6)

1. An inner channel measuring device of an angular contact ball bearing of an automobile steering device is characterized by comprising a workbench and a base which is positioned at the lower side of the workbench and arranged in parallel, the workbench and the base are connected through a base upright post, the workbench is provided with a through hole, the upper end surface of the workbench is provided with a positioning table, the positioning table is provided with an installation table for installing an angular contact ball bearing, the mounting table is provided with a mounting hole which is coaxial with the through hole, the upper end surface of the workbench is axially provided with an axial pressing component for pressing the angular contact ball bearing along the through hole, the upper end surface of the workbench is radially provided with a radial pressing component for positioning the angular contact ball bearing along the through hole, the lower end surface of the workbench is arrayed with 4 radial measuring units along the circumferential direction of the through hole, the axial floating mechanism is arranged on the lower side of the radial measuring unit and acts on the radial measuring unit to enable the radial measuring unit to axially float;
the axial compression assembly comprises an installation upright post connected with the upper end face of the workbench, a compression cylinder is axially installed on the installation upright post along the through hole, a compression part is installed at the lower end of the compression cylinder, and the compression cylinder is communicated with a compression cylinder manual control valve;
the radial compaction component comprises a radial positioning component and a radial jacking component,
the radial positioning assembly comprises a stop block and a fine adjustment device, the stop block is radially arranged along the through hole, the fine adjustment device is arranged on the upper side of the stop block, the stop block tightly presses the angular contact ball bearing through a first pressing ball, the fine adjustment device comprises a fine adjustment seat and a lever arranged on the upper side of the fine adjustment seat, one end of the lever tightly presses the angular contact ball bearing through a second pressing ball, the other end of the lever is provided with a differential head, the differential head is arranged in parallel with the axis of the through hole, and the radial positioning assembly comprises an X-direction positioning assembly and a Y-direction positioning assembly;
the radial tightening assembly comprises a tightening cylinder and a tightening slider arranged along the radial direction of the through hole, one end of the tightening slider is connected with the angular contact ball bearing, and the other end of the tightening slider is connected with the tightening cylinder which is communicated with a tightening cylinder manual valve;
the lever comprises a supporting part and a fine adjustment part, the fine adjustment part is L-shaped and is buckled on the supporting part, the fine adjustment part is connected with the supporting part at the L-shaped bending part, and gaps are reserved between the two ends of the L-shaped bending part and the fine adjustment part.
2. The device for measuring the inner channel of the angular contact ball bearing of the automobile steering device according to claim 1, wherein the pressing part comprises a pressing plate, and elastic plungers are circumferentially arrayed on the pressing plate.
3. The device for measuring the inner channel of the angular contact ball bearing of the automobile steering device according to claim 2, wherein the radial measuring unit comprises a radial telescopic mechanism arranged along the radial direction of the through hole and a radial leaf spring mechanism arranged on the lower side of the radial telescopic mechanism;
the radial leaf spring mechanism comprises a fixed seat and a movable seat which are arranged in parallel at intervals along the radial direction of a through hole, leaf springs for connecting the fixed seat and the movable seat are respectively and correspondingly arranged at the two ends of the fixed seat and the two ends of the movable seat, the leaf springs are fixed on the fixed seat and the movable seat through end pressing plates, the length of the leaf springs is arranged along the axial direction of the through hole, an installation part extends from one side, close to the movable seat, of the fixed seat, a detection part and a positioning part extend from one side, close to the fixed seat, of the movable seat, the installation part is located between the detection part and the positioning part, the detection part is arranged close to the through hole, a measurement cylinder is arranged between the installation part and the detection part, the measurement cylinder is communicated with a measurement cylinder manual control valve, a precision inductance sensor is arranged on the installation part, the detection end of the precision inductance sensor is in contact connection with the detection part during detection, and a reset spring is arranged between an installation upright post and the positioning part;
the radial telescopic mechanism comprises an L-shaped telescopic part, one end of the L-shaped telescopic part is connected with a sliding seat and is connected with the upper end face of the sliding seat in a matched mode, the other end of the L-shaped telescopic part extends into the through hole and is provided with a measuring part, and the measuring part is arranged on one side close to the angular contact ball bearing.
4. The device for measuring the inner channel of the angular contact ball bearing of the automobile steering device as claimed in claim 3, wherein an axial floating mechanism is mounted on the lower side of the radial measuring unit through a first connecting plate, the axial floating mechanism is connected with the base through a second connecting plate, a floating spring is mounted between the axial floating mechanism and the base, and a gap is formed between the axial floating mechanism and the base; the axial floating mechanism comprises an axial leaf spring mechanism; axial leaf spring mechanism includes along through-hole axial interval parallel arrangement's fixing base and removal seat, and the both ends of fixing base and the both ends of removing the seat correspond respectively and install the leaf spring of connecting the fixing base and removing the seat, and the leaf spring passes through the end clamp plate to be fixed on the fixing base with remove the seat, leaf spring length radially sets up along the through-hole, the fixing base is close to remove seat one side and extends there is the installation department, it has detection portion and location portion to remove the seat to be close to one side extension of fixing base, and the installation department is located between detection portion and the location portion, install the reset spring between installation stand and the location portion.
5. The device for measuring the inner channel of the angular contact ball bearing of the automobile steering device as claimed in claim 4, wherein the detection part comprises a measuring rod, one end of the measuring rod is connected with the L-shaped telescopic part, and the other end of the measuring rod is provided with a detection ball.
6. The device for measuring the inner channel of the angular contact ball bearing of the automobile steering device according to claim 5, wherein the middle pressing plates are arranged on the upper side and the lower side of the leaf spring, and a gap is reserved between the middle pressing plates and two fixed ends of the leaf spring.
CN201910466798.1A 2019-05-31 2019-05-31 Inner channel measuring device for angular contact ball bearing of automobile steering device Active CN110174042B (en)

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