CN114136184A - Bearing ring inner diameter oil guide groove taper and size measuring method and device based on three-coordinate measurement - Google Patents

Bearing ring inner diameter oil guide groove taper and size measuring method and device based on three-coordinate measurement Download PDF

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Publication number
CN114136184A
CN114136184A CN202111433869.1A CN202111433869A CN114136184A CN 114136184 A CN114136184 A CN 114136184A CN 202111433869 A CN202111433869 A CN 202111433869A CN 114136184 A CN114136184 A CN 114136184A
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Prior art keywords
inner diameter
oil guide
ferrule
guide groove
measuring
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CN202111433869.1A
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CN114136184B (en
Inventor
金文胜
王旭刚
罗志刚
刘哲夫
王博
黄思楠
齐鹏飞
肖家煜
高传健
刘婉慧
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AVIC Harbin Bearing Co Ltd
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AVIC Harbin Bearing Co Ltd
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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
    • G01B5/08—Measuring arrangements characterised by the use of mechanical techniques for measuring diameters
    • G01B5/12—Measuring arrangements characterised by the use of mechanical techniques for measuring diameters internal diameters
    • 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
    • G01B5/0002—Arrangements for supporting, fixing or guiding the measuring instrument or the object to be measured
    • 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

A method and equipment for measuring the taper and the size of an inner diameter oil guide groove of a bearing ring based on three-coordinate measurement belong to the technical field of measurement. The problems of low measurement efficiency and low measurement precision of the existing measurement mode of a main inspection mode and a re-inspection mode, wherein the two people respectively measure on the same instrument and manually calculate the main inspection mode and the re-inspection mode, and the measurement mode of a horizontal measuring instrument are solved. Firstly, determining the Z axis and the X axis of a workpiece coordinate system by using the end face of a ferrule, establishing the workpiece coordinate system, and generating a cone under the workpiece coordinate system, wherein the cone angle of the cone needs to be reversely deduced according to the cone angle on a drawing; then calling a cone and plane intersection command to enable the end face of the ferrule to intersect with the cone of the oil guide groove, so as to obtain the size of the inner diameter oil guide groove; and respectively measuring two section circles corresponding to the height difference in the inner diameter groove cone, and then calculating to obtain the taper of the inner diameter oil guide groove. The method is mainly used for measuring the inner diameter oil guide groove of the bearing ring.

Description

Bearing ring inner diameter oil guide groove taper and size measuring method and device based on three-coordinate measurement
Technical Field
The invention relates to a method and equipment for measuring the taper and the size of an inner diameter oil guide groove of a bearing ring, belonging to the technical field of measurement.
Background
The tapered groove is arranged in the inner diameter of the bearing, so that the contact surface between the inner ring of the bearing and the shaft can be reduced, the centrifugal force and the lubricating oil can form pressure conveniently, oil supply is facilitated, and in addition, the inner diameter of the bearing cannot generate fusion abrasion due to the oil wedge effect of the oblique angle. The inner diameter of the bearing inner ring is provided with a schematic diagram of a tapered groove, as shown in figure 1.
The traditional method for measuring the workpiece with the taper groove needs two persons for main inspection and re-inspection to respectively finish measurement on the same instrument, manually calculates the measured result, checks whether the measured result is consistent after the measurement is finished, and needs to re-measure if the measured result is inconsistent, so that the measurement efficiency is low. In order to improve the measurement efficiency and the measurement precision, the technical research on the taper and the size detection of the oil guide groove in the inner diameter of the bearing ring is imperative.
The three-coordinate measuring machine is a high-efficiency novel precision measuring device, is widely applied to the manufacturing fields of machinery, electronics, aviation, aerospace and the like at present, is used for measuring the shape size, hole site, central diameter and various shapes of various mechanical parts, dies and the like, and is particularly suitable for measuring workpieces with complex structures and high precision. However, the existing three-coordinate measuring method based on the three-coordinate measuring machine cannot measure the taper and the cone angle (does not have a measuring command of the taper and the cone angle), so that the taper and the cone angle cannot be measured by the three-coordinate measuring method at present. Meanwhile, three-coordinate measurement is only a measurement system, the actual measurement process needs to be manually arranged according to the structure of the component, and even for the same component, different measurement results can be obtained if the measurement processes are inconsistent.
Disclosure of Invention
The invention aims to solve the problems of low measurement efficiency and low measurement precision of the existing measurement mode of a main inspection mode and a re-inspection mode, wherein the main inspection mode and the re-inspection mode are respectively measured on the same instrument and manually calculated, and the measurement mode of a horizontal measuring instrument.
The method for measuring the taper and the size of the bearing ring inner diameter oil guide groove based on three-coordinate measurement is based on a three-coordinate measuring machine, and the specific measurement comprises the following steps:
s1, selecting and calibrating the probe;
further, the probe rod is 20mm long and 3mm in diameter, and the probe is vertically downward;
s2, clamping the ferrule by using a clamp; the ring is a bearing ring;
s3, establishing a manual workpiece coordinate system:
under a machine coordinate system, manually measuring the end face A of the ferrule by using a probe to determine the Z-axis direction of the workpiece coordinate system, manually measuring the inner diameter circular surface of the ferrule to determine the original point position of the workpiece coordinate system, measuring a point in any oil guide groove of the ferrule, and forming the X-axis direction of the workpiece coordinate system by the connection direction of the circle center of the inner diameter circular surface of the ferrule and the measuring point in the oil guide groove to complete the establishment of the manual workpiece coordinate system of the ferrule;
s4, establishing an automatic workpiece coordinate system:
automatically generating a ferrule end face according to the drawing size under a manual workpiece coordinate system, automatically generating a ferrule inner diameter circular face and determining the Z-axis direction and the origin position of the automatic workpiece coordinate system by using probe measurement; then, connecting a measured oil guide groove point under a machine coordinate system with the automatically measured inner diameter circle center of the ferrule to form an X axial direction of an automatic workpiece coordinate system, and completing the establishment of the automatic workpiece coordinate system of the ferrule;
s5, measuring the taper size of the oil guide groove in the inner diameter of the ferrule:
under an automatic workpiece coordinate system, measuring two sections of the oil guide groove with the inner diameter of the ferrule by using a probe to form a cone: each ferrule inner diameter oil guide groove corresponds to a point, a circle is determined based on the inner points of all ferrule inner diameter oil guide grooves, then the cone angle alpha of the corresponding cone is reversely deduced according to the taper on the drawing as 1: beta, a cone body is determined according to the circle and the cone angle alpha determined by the inner points of all ferrule inner diameter oil guide grooves, and the cone body is actually two cross-section circles of the ferrule inner diameter oil guide grooves to form the cone body;
further, the taper angle α ═ 2 × tan-1(1/2β)；
Then, intersecting commands of three-coordinate software are utilized to enable the end face of the ferrule to intersect with the cone of the ferrule inner diameter oil guide groove to form a section circle of the ferrule inner diameter oil guide groove, namely the size of the inner diameter oil guide groove to be measured;
and respectively measuring two section circles with the height of the cone of the oil guide groove of the inner diameter of the ferrule being H, respectively measuring two section circles with the height difference being H, and then calculating to obtain the taper of the oil guide groove of the inner diameter.
The device is a storage medium, wherein at least one instruction is stored in the storage medium, and the at least one instruction is loaded and executed by a processor to realize the bearing ring inner diameter oil guide groove taper and dimension measurement method based on three-coordinate measurement.
An apparatus comprising a processor and a memory, the memory having stored therein at least one instruction that is loaded and executed by the processor to implement a method for bearing ring inner diameter oil guide groove taper and dimensional measurement based on three coordinate measurements.
Has the advantages that:
the measurement efficiency and the measurement precision are greatly improved by measuring the size and the taper of the bearing inner diameter groove belt through the three coordinates, the traditional method needs about 1 hour for measuring one workpiece with the taper groove, the three-coordinate measurement only needs 10 minutes, the three coordinates are used for integrally measuring the inner diameter groove cone, the machine automatically calculates the result, the measurement result is more accurate, the measurement efficiency is higher, and meanwhile, the measurement problem that the taper of the odd inner diameter groove belt cannot be measured by the traditional method is solved. The measuring method for measuring the taper of the inner diameter groove by three coordinates is popularized to the measurement of products of multiple models, and the measuring efficiency and the measuring precision are obviously improved.
Drawings
FIG. 1 is a schematic view of a tapered bearing product with a certain type of inner diameter groove;
FIG. 2(a) is a view from the direction A of FIG. 1, FIG. 2(B) is a view from the direction B of FIG. 1, and FIG. 2(C) is a view from the direction C of FIG. 1;
FIG. 3 is a schematic view of a fixture;
FIG. 4 is a schematic view of a bearing with taper of a certain type of inner diameter groove;
fig. 5 is a schematic view of the taper measurement principle.
Detailed Description
The first embodiment is as follows:
the embodiment is a method for measuring the taper and the size of an inner diameter oil guide groove of a bearing ring based on three-coordinate measurement.
The specific measurement requirements of the measurement of the taper and the size of the bearing inner diameter oil guide groove are as follows: and measuring the cross section size of the taper and the intersection of the oil guide groove and the end face of the ferrule.
Selection of measurement probe: according to the requirements of the product drawing (figure 1), the embodiment selects a 3mm vertical probe as a reference probe for measurement (actually, a 2mm probe can also be selected). The 3mm vertical probe is used for measuring the reference of the bearing inner ring: the end face, the inner diameter and any one groove of the oil guide grooves.
Clamping a workpiece: in order to facilitate batch measurement, the bearing ring is clamped and fixed by a clamp, as shown in fig. 3.
When the clamp is used for measuring the bearing rings in batches, after the end face A of the ring and the inner diameter circle B of the ring are manually measured for the first bearing ring and a workpiece coordinate system is manually established, and then the next bearing ring is measured, the end face A of the ring and the inner diameter circle B of the ring are not needed to be manually measured for the bearing rings and the workpiece coordinate system is not needed to be manually established, the workpiece coordinate system is directly and automatically established and the measurement is realized on the basis of a program, the workload can be greatly reduced, and the measurement efficiency is improved.
The measurement principle is as follows:
according to a drawing (figure 1) of a taper product of an inner diameter oil guide groove of a bearing, a three-coordinate detection scheme is determined, the end face A of a ferrule is used for determining the Z-axis direction of a workpiece coordinate system, the circle center of the workpiece coordinate system is determined by the inner diameter circular face B of the ferrule, the X-axis direction of the workpiece coordinate system is determined by any one oil guide groove and the circle center of the inner diameter, and the workpiece coordinate system is established, as shown in figure 4.
Under the workpiece coordinate system, a cone is generated, the cone angle of the cone formed by each point (6 equal parts) of the 6 oil guide grooves of the cone needs to be reversely deduced according to the cone angle alpha of the corresponding cone of 1:100 on the drawing sheet to be 2 tan-1(1/200), the cone angle alpha is needed when the cone is measured by three coordinates; and calling a cone and plane intersection command to enable the ferrule end face A to be intersected with the oil guide groove cone to obtain a section circle of the inner diameter oil guide groove, namely the dimension of the inner diameter oil guide groove to be measured.
And measuring the taper of the ferrule, namely measuring two section circles with the height difference of 10mm in the taper of the inner diameter groove respectively, and according to the definition of the taper: the taper refers to the ratio of the diameter difference of the upper and lower bottom circles to the height of the frustum (figure 5). The two section circles with the height difference of the cone of the inner diameter oil guide groove being H are respectively measured through three-coordinate programming, and then the taper of the inner diameter oil guide groove is obtained through programming calculation and output.
This embodiment adopts the three-dimensional to measure according to the measurement requirement of bearing internal diameter oil guide groove, and this process is actually that the tapering and the size measurement of bearing internal diameter oil guide groove are realized through the programming, and specific measurement flow is as follows:
and S1, selecting and calibrating the probe.
In the embodiment, PRB _2031_20 is selected and is positioned at the storehouse position No. 2 of a probe tool rest, the length of the probe rod is 20mm, the diameter of the probe rod is 3mm, and the probe is vertically downward;
s2, clamping the ferrule by using a clamp:
the end face of the ferrule, the taper size of which needs to be measured, is placed upwards on a workbench, and the ferrule is fixed on the workbench through a fixture.
The ring is a bearing ring;
s3, establishing a manual workpiece coordinate system (corresponding to a programmed rough coordinate system):
in a machine coordinate system, a 3mm vertical probe PRB _2031_20 is used for manually measuring the end face A of a ferrule respectively to determine the Z-axis direction of a workpiece coordinate system, the inner diameter circular face of the ferrule is manually measured to determine the original point position of the workpiece coordinate system, a point is measured in any oil guide groove of the ferrule (the point is not manually determined but is determined in the oil guide groove based on a three-coordinate system), the circle center of the inner diameter circular face of the ferrule and the connecting line direction of the measuring points in the oil guide groove form the X-axis direction of the workpiece coordinate system, and the establishment of the manual workpiece coordinate system of the ferrule is completed.
The process is to mark the position of the workpiece in the machine coordinate system, and when the Z-axis and the X-axis determine the Y-axis, which is equivalent to the determination, the establishment of the workpiece coordinate system is completed.
S4, establishing an automatic workpiece coordinate system (corresponding to a programmed refined coordinate system):
automatically generating a ferrule end face according to the drawing size under a manual workpiece coordinate system, automatically generating a ferrule inner diameter circular face, measuring by using a 3mm vertical probe PRB _2031_20, and determining the Z-axis direction and the origin position of the automatic workpiece coordinate system; and then, connecting the oil guide groove point measured under the machine coordinate system with the circle center of the automatically measured inner diameter of the ferrule to form the X axial direction of the automatic workpiece coordinate system, thereby completing the establishment of the automatic workpiece coordinate system of the ferrule.
The process is to measure the relevant dimensions and angles of the workpiece according to the drawing.
S5, measuring the taper size of the oil guide groove in the inner diameter of the ferrule:
measuring two cross-sectional circles of the ferrule inner diameter oil guide groove with a 3mm vertical probe PRB _2031_20 under an automatic workpiece coordinate systemVertebral body: each ferrule inner diameter oil guide groove corresponds to a point, a circle is determined based on all ferrule inner diameter oil guide groove inner points (equal division points, 6 equal division points correspond to 6 ferrule inner diameter oil guide grooves in the embodiment), and then the cone angle alpha of the corresponding cone is reversely deduced to be 2 tan according to the taper of 1: beta on the drawing (1: 100 for fig. 1)-1(1/2 beta), determining a cone according to the circle determined by all inner points of the inner diameter oil guide groove of the ferrule and the cone angle alpha, wherein the cone is actually two cross sections of the inner diameter oil guide groove of the ferrule which are circular to form a cone;
the invention is determined based on the bisector point, so the accuracy of the measurement result is better, and the stability of the measurement result is also better.
Then, intersecting commands of three-coordinate software are utilized to enable the end face of the ferrule to intersect with the cone of the ferrule inner diameter oil guide groove to form a section circle (a circle formed by the outer sides of all the ferrule inner diameter oil guide grooves), namely the size of the inner diameter oil guide groove to be measured;
and in addition, through a three-coordinate software command, two section circles with the height H being 10mm of the cone body of the inner diameter oil guide groove of the ferrule are respectively measured, two section circles with the height difference H are respectively measured, and then the taper of the inner diameter oil guide groove is obtained through calculation and output.
And S6, saving the program and printing a report.
The measurement procedure was programmed as follows:
| A | A | A Stylus verification
QualifyTool(NAM＝PRB_2031_20,DIA＝3.0,NRF＝Y,REF＝SPH,SCN＝Y,MGZ＝2,AZI＝0,ELV＝-90,SNT＝PMM,DEL＝Y,GEO＝SPH,UAD＝Y)
| A | A | A Coarse coordinate system (the purpose of coarse coordinate system is to tell the position of the three-coordinate measured piece in the machine)
USEPRB uses a reference probe (NAM PRB _2031_20)
MEPLA manual measurement ferrule end face reference
Figure BDA0003380917160000051
MECR manual measurement ferrule internal diameter circular surface reference
Figure BDA0003380917160000052
MEPNT manually measures a point on any inner diameter oil guide groove
The MCDPTPT constructs a straight line from a point measured on the circle center of the inner diameter and the oil guide groove of the inner diameter as the X axis of a workpiece coordinate system
BLDCSY to establish a workpiece coordinate system
| A | A | A A refined coordinate system (to measure the relative dimensions and angles of the workpiece according to the drawing)
GENCIR(NAM＝PLA_CNC,XCO＝0,YCO＝0,ZCO＝0,DIA＝144,NPT＝6,PLA＝XY,INO＝P,PDI＝3,CSY＝CSY_MAN,ZVL＝50,DEL＝Y，RTP＝0)
MEPLA(NAM＝PLA_CNC,CSY＝CSY_MAN,MOD＝NOE,ITY＝GSS,DEL＝N)
GENCIR(NAM＝CIR_NJ_CNC,XCO＝0,YCO＝0,ZCO＝-5,DIA＝CIR_MAN.$DM,NPT＝6,PLA＝XY,INO＝I,PDI＝3,CSY＝CSY_MAN,ZVL＝50,DEL＝Y,RTP＝0)
MECIR(NAM＝CIR_NJ_CNC,CSY＝CSY_MAN,PRO＝PLA_CNC,INO＝I,DEL＝N)
TRAELE(NAM＝POI(2),TRA＝CSY_MAN,OLD＝POI(1))
MCDPTPT(NAM＝AXI_CNC,TYP＝DIS,CSY＝CSY_MAN,CP＝DEF$DIS3，EL1＝CIR_NJ_CNC,TY1＝POI,ST1＝POI,EL2＝PNT(2),TY2＝POI,ST2＝POI,CNN＝DIS)
BLDCSY(NAM＝CSY_CNC,TYP＝CAR,SPA＝PLA_CNC,SDR＝+Z,PLA＝AXI_CNC,PDR＝+X,XZE＝CIR_CNC,YZE＝CIR_CNC,ZZE＝PLA_CNC)
| A | A | A Measuring procedure for taper and dimension of inner diameter groove of ferrule (taking taper and dimension of inner diameter of bearing of certain type as an example)
| A Automatic generation cone CON (1)
| A According to the definition of the taper (fig. 5), the taper on the drawing is 1:100, and the taper angle alpha of the corresponding taper is deduced, wherein alpha is 2 tan-1(1/200)
＝0.572953
GENCON(NAM＝CON(1),XCO＝0,YCO＝0,ZCO＝-13,DIA＝136.43,NPT＝12,DIR＝Z,INO＝I,PDI＝3,CSY＝CSY_CNC,LEN＝11，NPL＝2，ANG＝α，ZVL＝50,DEL＝Y，RTP＝0)
| A Cone CON (1) generated by measurement
MECON(NAM＝CON(1),CSY＝CSY_CNC,ITY-EXT,INO＝I,MOD＝EVA)
| A The intersection of the cone and the plane gives the section circle diameter CIR (1)
CutConePla(NAM＝CIR(1),CON＝CON(1),CSY＝CSY_CNC,HGT＝0,INO＝I,MOD＝EVA)
| A Automatic generation of a section circle CIR _1 of inner diameter groove
GENCIR(NAM＝CIR_1，XCO＝0，YCO＝0，ZCO＝-3，DIA＝136.43，NPT＝6，PLA＝XY,INO＝I,PDI＝3，CSY＝CSY_CNC,ZVL＝80，RTP＝0)
| A Measuring a circle CIR _1 of the cross-section of the resulting inside diameter groove
MECIR(NAM＝CIR_1,CSY＝CSY_CNC,INO＝I,ITY＝GSS,DEL＝N)
| A The height difference between the other section circle CIR _2 and CIR _1 of the inner diameter groove is automatically generated by 10mm
GENCIR(NAM＝CIR_2，XCO＝0，YCO＝0，ZCO＝-13，DIA＝136.54，NPT＝6，PLA＝XY,INO＝I,PDI＝3，CSY＝CSY_CNC,ZVL＝80，RTP＝0)
| A Measuring another circle CIR _2 of the generated inner diameter groove
MECIR(NAM＝CIR_2,CSY＝CSY_CNC,INO＝I,ITY＝GSS,DEL＝N)
| A Radius compensation is carried out on two section circles CIR _1 and CIR _2 of the cone respectively
RCOR2D(SRC＝CIR_1，DST＝CIR_11，A_O＝XY)
RCOR2D(SRC＝CIR_2，DST＝CIR_22，A_O＝XY)
| A Respectively assigning values to two section circles CIR _1 and CIR _2 of the compensated cone
GETVALS(OBJ＝CIR_1，TYP＝ELE,RDS＝A,REA＝D_MIN)
GETVALS(OBJ＝CIR_2，TYP＝ELE,RDS＝A,REA＝D_MAX)
| A Define variable H and assign value 10
H＝10
| A Defining the variable TAPER and calculating the TAPER
TAPER＝H/FABS(D_MAX-D_MIN)
| A Defining variable TAPER as character string-TAPER
CVREACHS(NAM＝～TAPER,VAL＝TAPER,INT＝NSPZ＝N,RLS＝Y,TRZ＝Y)
| A Connection string 1: and TAPER is named as Result for a string
CONCAT(NAM＝～Result,STR＝((`TAPER＝1:`,～TAPER))
| A Outputting the taper measurement Result-Result
TEXT(STR＝～Result,DEV＝LP)
| A Output the measurement result CIR (1) of the taper size of the inner diameter groove
ADDEVA(NAM＝CIR(1))
The second embodiment is as follows:
the embodiment is a device, the device is a storage medium, at least one instruction is stored in the storage medium, and the at least one instruction is loaded and executed by a processor to implement a method for measuring the taper and the dimension of the bearing ring inner diameter oil guide groove based on three-coordinate measurement.
The third concrete implementation mode:
the embodiment is an apparatus, which includes a processor and a memory, where the memory stores at least one instruction, and the at least one instruction is loaded and executed by the processor to implement a method for measuring a taper and a size of an inner diameter oil guide groove of a bearing ring based on three-coordinate measurement.
The present invention is capable of other embodiments and its several details are capable of modifications in various obvious respects, all without departing from the spirit and scope of the present invention.

Claims (5)

1. The method for measuring the taper and the size of the bearing ring inner diameter oil guide groove based on three-coordinate measurement is based on a three-coordinate measuring machine, and is characterized by comprising the following steps of:
s1, selecting and calibrating the probe;
s2, clamping the ferrule by using a clamp; the ring is a bearing ring;
s3, establishing a manual workpiece coordinate system:
under a machine coordinate system, manually measuring the end face A of the ferrule by using a probe to determine the Z-axis direction of the workpiece coordinate system, manually measuring the inner diameter circular surface of the ferrule to determine the original point position of the workpiece coordinate system, measuring a point in any oil guide groove of the ferrule, and forming the X-axis direction of the workpiece coordinate system by the connection direction of the circle center of the inner diameter circular surface of the ferrule and the measuring point in the oil guide groove to complete the establishment of the manual workpiece coordinate system of the ferrule;
s4, establishing an automatic workpiece coordinate system:
automatically generating a ferrule end face according to the drawing size under a manual workpiece coordinate system, automatically generating a ferrule inner diameter circular face and determining the Z-axis direction and the origin position of the automatic workpiece coordinate system by using probe measurement; then, connecting a measured oil guide groove point under a machine coordinate system with the automatically measured inner diameter circle center of the ferrule to form an X axial direction of an automatic workpiece coordinate system, and completing the establishment of the automatic workpiece coordinate system of the ferrule;
s5, measuring the taper size of the oil guide groove in the inner diameter of the ferrule:
under an automatic workpiece coordinate system, measuring two sections of the oil guide groove with the inner diameter of the ferrule by using a probe to form a cone: each ferrule inner diameter oil guide groove corresponds to a point, a circle is determined based on the inner points of all ferrule inner diameter oil guide grooves, then the cone angle alpha of the corresponding cone is reversely deduced according to the taper on the drawing as 1: beta, a cone body is determined according to the circle and the cone angle alpha determined by the inner points of all ferrule inner diameter oil guide grooves, and the cone body is actually two cross-section circles of the ferrule inner diameter oil guide grooves to form the cone body;
then, intersecting commands of three-coordinate software are utilized to enable the end face of the ferrule to intersect with the cone of the ferrule inner diameter oil guide groove to form a section circle of the ferrule inner diameter oil guide groove, namely the size of the inner diameter oil guide groove to be measured;
and respectively measuring two section circles with the height of the cone of the oil guide groove of the inner diameter of the ferrule being H, respectively measuring two section circles with the height difference being H, and then calculating to obtain the taper of the oil guide groove of the inner diameter.
2. The method for measuring the taper and the dimension of the oil guide groove in the inner diameter of the bearing ring based on the three-coordinate measurement according to claim 1, wherein the probe rod of S1 is 20mm long and 3mm in diameter, and the probe is vertically downward.
3. The method for measuring the taper and the dimension of the oil guide groove on the basis of the three-coordinate measurement of the bearing ring according to claim 1 or 2, wherein the taper angle α is 2 tan-1(1/2β)。
4. An apparatus, characterized in that the apparatus is a storage medium having at least one instruction stored therein, the at least one instruction being loaded and executed by a processor to implement the method for measuring bearing ring bore oil groove taper and dimension based on three-coordinate measurement according to one of claims 1 to 3.
5. An apparatus comprising a processor and a memory, wherein the memory has stored therein at least one instruction that is loaded and executed by the processor to implement the method of measuring bearing ring bore oil groove taper and dimension based on three-coordinate measurement according to any one of claims 1 to 3.
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