A kind of accurate detection device of bearing ring outer-diameter accuracy
The present invention relates to the detection technique field of bearing parts, specifically a kind of bearing ring outer-diameter accuracy is accurately examined
Bearing ring usually will be to its outer diameter single plane size, outer diameter single plane dimensional variations amount it is oval and
Mean outside diameter variation, that is, outer diameter taper is detected.The inspection of outer diameter usually carries out on D051 measuring apparatus of diameter, and D051 is straight
The testing principle of cable diameter gauge is the inspection completed using comparison method Mechanical measurement principle to outer diameter.Specific detection method is such as
Under: standard component is pushed into from right to left along locating platform and is measured position, adjusting lower support and aiding support position makes standard component
Positioning stablity is reliable, then carries out adjusting this ruler of instrument grip cycle basis to table according to the nominal dimension of standard component and actual deviation
It is very little in instrument zero position, to meter setting after measure machined good part, according to the direction and number of instrument "+" or "-"
Then value compares whether measured value meets art work sheet requirement, complete the detection of lasso outer diameter.
The measurement method is for measurement outer diameter single plane size and outer diameter single plane dimensional variations amount, that is, ovality
It is very useful, but bearing ring outer diameter needs to measure at least three sections, the i.e. both ends of lasso and intermediate sizes, it is flat to determine
Equal variation in diameter amount, that is, outer diameter taper.Following methods are generallyd use when using above-mentioned apparatus measures lasso average diameter variation:
1. when being measured on a D051 measuring apparatus of diameter, by being measured outside lasso both ends respectively on the basis of both ends of the surface
Then diameter size increases by a gasket between one end face of lasso and locating platform, spacer height is the half of lasso height, so as to
Lasso intermediate sizes are measured, and then obtain lasso outer diameter taper.
2. when being measured on two D051 measuring apparatus of diameter, wherein one is used to measure the both ends outer diameter of lasso,
Another is used to measure lasso intermediate sizes, and then obtains outer diameter taper.
Since the requirement of bearing ring outer diameter is very strict, following ask usually there will be when measuring using above method
1. needing to increase point gasket when measuring intermediate sizes, but increase when measuring on a D051 measuring apparatus of diameter
Measurement difficulty is not only increased after gasket, also produces bigger measurement error.
2. when using two D051 measuring apparatus of diameter measurements, since the different location of measurement Same Part is not in same instrument
On device, and exist to Watch Error and measurement error, can not more really react lasso available accuracy.
3. the measurement of outer diameter small for flanged bearing, because the issuable outer diameter bus of processing method reason is not orthogonal to end
Face, current measurement method can not be detected effectively.
Summary of the invention
It is big for the above-mentioned existing measurement error when measuring bearing ring ovality and taper on D051 measuring apparatus of diameter
And the problems such as difficulty is big is measured, the present invention provides a kind of accurate detection device of bearing ring outer-diameter accuracy.
In order to solve the above technical problems, the technical solution adopted by the present invention are as follows:
A kind of accurate detection device of bearing ring outer-diameter accuracy, the device include locating shaft, sleeve, spring, rotating handle
And end cap, the locating shaft are made of path section and major diameter section, the sleeve is open at one end, and the other end face center is equipped with and determines
The equal through-hole of the path section diameter of position axis, through-hole and measuring apparatus of diameter of the path section of locating shaft on sleeve are determined
Bit platform connection, major diameter section is arranged in sleeve, and the diameter of major diameter section is identical as the inner diameter size of sleeve, and the end cap is fixed
Lid is located at the open end of sleeve, and the center of end cap is equipped with the threaded hole worn for rotating handle, sets in the rotating handle
There is the external screw thread to match with threaded hole, the spring is set in the central diameter section of locating shaft, and both ends hold out against locating shaft respectively
Major diameter section and sleeve inner side end.
The length of the sleeve and the length of locating shaft are identical.
The sleeve end face thickness is equal to the 1/10 of length sleeve.
The spring inside diameter >=locating shaft path section outer diameter, spring outer diameter≤sleeve internal diameter, length=1/2 sleeve
The rotating handle is made of threaded rod and handle, length=1/2 length sleeve of threaded rod, and the diameter of threaded rod=
1/3 sleeve diameter, handle diameters=1.5 times sleeve outer diameter.
The sleeve is equipped with pin hole, and the major diameter section of locating shaft is equipped with through slot, and the small end of pin is set across pin hole
It sets in the through slot on locating shaft, and through slot width=pin end diameter.
The end of the rotating handle is fixed with the steel ball for holding out against locating shaft end.
The end cap is made of major diameter section and path section, and major diameter section diameter is equal with sleeve outer diameter, path section diameter and set
Cylinder internal diameter is equal, and major diameter segment length=1/3 path segment length.
Beneficial effects of the present invention:
The accurate detection device of bearing ring outer-diameter accuracy provided by the invention, by the way that moveable locating shaft is arranged, thus
Realize the movement of bearing ring to be detected, it can be achieved that positioning measurement outer diameter of bearing ring size, ovality and taper, survey
Amount is accurate and reliable；Detection for flanged bearing, by it is suitable/rotate in an anti-clockwise direction rotating handle and realize that lasso is moved along axial
It is dynamic, it can effectively detect small outer diameter bus and end face squareness；It is small outer that the device can meet plain bearing outer diameter, flanged bearing
Size, the testing requirements of outside diameter ovality and outer diameter taper of diameter, and it is easy to operate, and measurement is accurate, substantially increases measurement
Detailed description of the invention
Fig. 1 schematic structural view of the invention；
Appended drawing reference: 1, measuring instrumentss, 2, lower support, 3, bearing ring, 4, locating platform, 5, locating shaft, 6, sleeve, 7,
Spring, 8, pin, 9, steel ball, 10, rotating handle, 11, end cap.
The present invention is further elaborated With reference to embodiment.
As shown in the figure: a kind of accurate detection device of bearing ring outer-diameter accuracy, the device include locating shaft 5, sleeve 6, bullet
Spring 7, rotating handle 10 and end cap 11, the locating shaft 5 are made of path section and major diameter section, and the sleeve 6 is open at one end, another
End face center is held to be equipped with the through-hole equal with the path section diameter of locating shaft 5, the path section of locating shaft 5 passes through on sleeve 6
Through-hole and the locating platform 4 of measuring apparatus of diameter connect, major diameter section is arranged in sleeve 6, and the diameter of major diameter section and sleeve 6
Inner diameter size is identical, and the length of the sleeve 6 is identical as the length of locating shaft 5, and 6 end surface thickness of sleeve is long equal to sleeve 6
The 1/10 of degree；The sleeve 6 is equipped with pin hole, and the major diameter section of locating shaft 5 is equipped with through slot, and the small end of pin passes through pin hole
It is arranged in the through slot on locating shaft 5, and through slot width=pin end diameter；The fixed lid of the end cap 11 is located at opening for sleeve 6
Mouth end, the end cap 11 are made of major diameter section and path section, and major diameter section diameter is equal with sleeve outer diameter, path section diameter and sleeve
Internal diameter is equal, and major diameter segment length=1/3 path segment length, and the center of end cap 11 is equipped with the spiral shell worn for rotating handle 10
Pit, the rotating handle 10 are equipped with the external screw thread that matches with threaded hole, and the rotating handle 10 is by threaded rod and handle
It forms, length=1/2 length sleeve of threaded rod, diameter=1/3 sleeve diameter of threaded rod, outside the sleeve of handle diameters=1.5 times
The end of diameter, the rotating handle 10 is fixed with the steel ball for holding out against 5 end of locating shaft；The spring 7 is set in locating shaft 5
In central diameter section, and both ends hold out against 6 inner side end of major diameter section and sleeve of locating shaft 5 respectively, and 7 internal diameters of the spring >=locating shaft is small
Diameter section outer diameter, 7 outer diameters of spring≤sleeve internal diameter, length=1/2 length sleeve.
The step of measuring bearing ring outer-diameter accuracy using apparatus of the present invention is as follows:
1. spring 7 is packed into 5 path section of locating shaft, then the two is packed into from the open end of sleeve 6 together, locating shaft
5 path sections are stretched out out of sleeve 6 other end through-hole；
2. end cap 11 to be installed to the open end of sleeve 6, the path section of end cap 11 is plugged in sleeve 6, and will with screw
11 major diameter section of end cap and sleeve 6 are fixed together；
3. end is welded with the rotating handle 10 of steel ball 9 and end cap 11 is together by a threaded connection, acted in spring 7
Under, effect and the compression of steel ball 9 and 5 right side of locating shaft generation power are made by rotating handle 10；
4. rotated locating shaft 5 make at its major diameter section fluting be overlapped at 6 pin hole of sleeve, and pin 8 is installed, it is fixed to guarantee
Position axis 5 can only be moved left and right along axial direction；
5. installing locating platform 4 in 5 path section end of locating shaft, locating platform 4 is adjusted by rotation rotating handle 10
Highly, to meet measurement request.
6. carrying out adjusting instrument 3 basic size of bearing ring to table according to the nominal dimension and actual deviation of standard component
To in instrument zero position, to meter setting after measure the outer diameter and ovality of machined good bearing ring 3, then lead to
It crosses rotation rotating handle 10 and changes the position of locating platform 4 to complete the detection to 3 taper of bearing ring, last measurement of comparison value
Whether meet art work sheet requirement, completes the detection of workpiece.