CN104613845A - High precision sphere diameter in situ measuring device and method - Google Patents
High precision sphere diameter in situ measuring device and method Download PDFInfo
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- CN104613845A CN104613845A CN201410806495.7A CN201410806495A CN104613845A CN 104613845 A CN104613845 A CN 104613845A CN 201410806495 A CN201410806495 A CN 201410806495A CN 104613845 A CN104613845 A CN 104613845A
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Abstract
The invention discloses a high precision sphere diameter in situ measuring device and method; the device comprises a locking nut (3), a stationary coil seat (2), a moving coil (1), and a universal precise measuring tool (4); the locking nut (3) is arranged on the outer side of the stationary coil seat (2); the locking nut (3) utilizes the elastic gripper tube fixture principle to fix the stationary coil seat (2) on the outer circle of a measuring rod of the universal precise measuring tool; the moving coil (1) is connected with a measuring portion of the universal precise measuring tool through an outer thread portion (11); a second cylindrical portion (13) of the moving coil (1) and the cylindrical portion (23) of the stationary coil seat (2) respectively contact with the spherical part to be tested; the sphere diameter of the spherical part to be tested is obtained by a variation between a measurement standard part and the apparent value of the universal precise measuring tool (4) of the spherical part to be tested. The high precision sphere diameter in situ measuring device is low cost, good in environment adaptation, and compact in structure; the precision meets the requirement of use; the efficient and precise in situ sphere diameter detection of the spherical part on the machining equipment can be achieved.
Description
Technical field
The present invention relates to a kind of high precision sphere diameter on-position measure device and method.
Background technology
Spherical bearing part generally comprises ball bowl bearing parts and hemisphere bearing part, and be the critical component of spherical dynamic pressure air float gyro machine, its precision directly determines the Performance And Reliability of gyro machine.Sphere diameter detects and adopts traditional three-coordinates measuring machine in the past, workpiece must be taken off from process equipment, and in process, quite a few time loss is installed in dismounting and metering wait at workpiece like this, causes working (machining) efficiency low; And unstable due to the amount of going of process equipment unit interval, need to grasp the current process redundancy of workpiece timely.Therefore, development is needed badly a kind of specially for the high precision sphere diameter on-position measure device of onsite application on production line, to realize efficient, the accurate on-position measure of sphere diameter processing.
Summary of the invention
Technical matters to be solved by this invention is: provide a kind of special low for the cost of onsite application on production line, good environmental adaptability, the high precision sphere diameter on-position measure device and method of compact conformation, to realize efficient, the accurate on-position measure of sphere diameter processing, measuring accuracy reaches more than 0.0015mm.
Technical scheme of the present invention is:
A kind of high precision sphere diameter on-position measure device, comprises set nut, determines ring support, moving-coil and versatile smart dimension measuring implement; Set nut is positioned to be determined outside ring support, is fixed on versatile smart dimension measuring implement measuring staff cylindrical by set nut by determining ring support;
Determining the middle formation through hole of ring support, determining ring support and comprising the conical portion, male thread portion and the cylindrical part that are connected successively from the top down; Conical portion outside surface forms multiple groove; The through-hole diameter formed in the middle of cylindrical part is larger than the through-hole diameter formed in the middle of conical portion;
Set nut comprises the conical portion and cylindrical part that are connected successively from the top down; Form cone-shaped hole at the middle of conical portion of set nut, form the female through hole of tool at the cylindrical part of set nut; The described conical portion determining ring support coordinates with the cone-shaped hole of described set nut, and the described male thread portion determining ring support coordinates with the female through hole of the tool of described set nut;
Moving-coil comprises the male thread portion, the first cylindrical part and the second cylindrical part that are connected successively from the top down; The diameter of described second cylindrical part is larger than the diameter of the first cylindrical part, relief groove is had: moving-coil is connected with versatile smart dimension measuring implement surveying work part by male thread portion between male thread portion with the first cylindrical part, second cylindrical part of moving-coil contacts with bulb to be measured respectively with the cylindrical part determining ring support, and is positioned at above bulb to be measured;
The sphere diameter of bulb to be measured is obtained according to the variable quantity of versatile smart dimension measuring implement apparent value when measurement standard part and bulb to be measured.
Described bulb to be measured is ball bowl bearing parts, and the second cylindrical part of moving-coil stretches out from the cylindrical part determining ring support, and contacts with bowl bottom in ball bowl bearing parts; Determine the cylindrical part of ring support and the interior bowl top contact of ball bowl bearing parts.
Described bulb to be measured is hemisphere bearing part, and the second cylindrical part of moving-coil is positioned at determines ring support inside, and the second cylindrical part of moving-coil forms the inner chamber of holding portion hemisphere bearing part; Second cylindrical part of moving-coil contacts with the outer bowl bottom of hemisphere bearing part, determines the cylindrical part of ring support and the outer bowl top contact of hemisphere bearing part.
Determine ring support and moving-coil adopts brass.
The verticality of the male thread portion of moving-coil and moving-coil upper level-end face, lower level-end face end face is within 0.005mm.
Utilize above-mentioned a kind of high precision sphere diameter on-position measure device to carry out the method for spherical diameter measurement, it is characterized in that: comprise the steps:
Described high precision sphere diameter on-position measure device is vertically placed on standard component, rely on described high precision sphere diameter on-position measure device to conduct oneself with dignity to guarantee to determine ring support, moving-coil respectively with standard component reliable contacts; Initial apparent value is determined according to the displayed value of versatile smart dimension measuring implement;
Described high precision sphere diameter on-position measure device is vertically placed on bulb to be measured, rely on described high precision sphere diameter on-position measure device to conduct oneself with dignity to guarantee to determine ring support, moving-coil respectively with bulb reliable contacts to be measured; Determine to measure apparent value according to the displayed value of versatile smart dimension measuring implement;
Measurement apparent value and initial apparent value are subtracted each other acquisition difference, searches according to described difference the sphere diameter that bulb to be measured determined by dimension conversion table.
The present invention's advantage is compared with prior art:
(1) by the standard mounting interface of versatile smart dimension measuring implement with measure moving-coil, determine ring support and organically combine, cost is low, good environmental adaptability, compact conformation, rely on measurement mechanism deadweight to guarantee to determine ring support, moving-coil and bulb reliable contacts, can be implemented in position and measure.
(2) converted by the variable quantity of tested sphere diameter part difference in height between two fixing chord lengths, complete the indirect inspection to ball part sphere diameter, versatile smart dimension measuring implement apparent value is converted and can draw sphere diameter size, make the precision of measurement mechanism self reach more than 0.0015mm, ensure that spherical diameter measurement device meets request for utilization.
Accompanying drawing explanation
Fig. 1 is high precision sphere diameter on-position measure device front view of the present invention; Fig. 1 a is ball bowl bearing parts sphere diameter on-position measure device, and Fig. 1 b is hemisphere bearing part sphere diameter on-position measure device.
Fig. 2 is that the present invention determines ring support schematic diagram; Fig. 2 a be ball bowl bearing parts corresponding determine ring support, Fig. 2 b be hemisphere bearing part corresponding determine ring support.
Fig. 3 is set nut schematic diagram of the present invention.
Fig. 4 is moving-coil schematic diagram of the present invention; Fig. 4 a is the moving-coil that ball bowl bearing parts is corresponding; Fig. 4 b is the moving-coil that hemisphere bearing part is corresponding.
Fig. 5 is the present invention's schematic diagram when working, and Fig. 5 a is schematic diagram when measuring ball bowl bearing parts, and Fig. 5 b is schematic diagram when measuring hemisphere bearing part.
Embodiment
As shown in Figure 1, a kind of high precision sphere diameter on-position measure device, comprises set nut 3, determines ring support 2, moving-coil 1 and versatile smart dimension measuring implement 4; Set nut 3 is positioned to be determined outside ring support 2, is fixed on versatile smart dimension measuring implement measuring staff cylindrical by set nut 3 by determining ring support 2; Determining ring support 2 adopts elasticity better with moving-coil 1 and material is softer, not easily scratch the H59 brass on tested part surface.
As shown in Figure 2, determining the middle formation through hole of ring support 2, determining ring support 2 and comprising the conical portion 21, male thread portion 22 and the cylindrical part 23 that are connected successively from the top down; Conical portion 21 outside surface forms multiple groove 24; Through hole 25 diameter formed in the middle of cylindrical part 23 is larger than through hole 26 diameter formed in the middle of conical portion 21; This structural design can ensure that the conical portion 21 determining ring support 2 has good shrinkability, when tapered segment 21 is subject to External Force Acting, the diameter of through hole 26 will reduce, thus versatile smart dimension measuring implement measuring staff cylindrical is held tightly, meanwhile, the diameter value that endoporus 25 is larger can guarantee moving-coil 1 not with determine ring support 2 and interfere.
As shown in Figure 3, set nut 3 comprises the conical portion 31 and cylindrical part 32 that are connected successively from the top down; Form cone-shaped hole 33 at the middle of conical portion 31 of set nut 3, form the female through hole 34 of tool at the cylindrical part 32 of set nut 3; The cone-shaped hole 33 of the described conical portion 21 and described set nut of determining ring support 2 coordinates, and the described male thread portion 22 determining ring support 2 coordinates with the female through hole 34 of the tool of described set nut 3.
As shown in Figure 4, moving-coil 1 comprises male thread portion 11, first cylindrical part 12 and the second cylindrical part 13 that are connected successively from the top down; The diameter of described second cylindrical part 13 is larger than the diameter of the first cylindrical part 12, relief groove 14 is had: moving-coil 1 is connected with versatile smart dimension measuring implement surveying work part by male thread portion 11 between male thread portion 11 with the first cylindrical part 12, second cylindrical part 13 of moving-coil 1 contacts with ball bowl bearing parts 5 to be measured or hemisphere bearing part 6 respectively with the cylindrical part 23 determining ring support 2, and is positioned at above bulb to be measured.
As shown in Figure 5 a, described bulb to be measured is ball bowl bearing parts 5, and the second cylindrical part 13 of moving-coil 1 stretches out from the cylindrical part determining ring support 2, and contacts with bowl bottom in ball bowl bearing parts 5; Determine the cylindrical part of ring support 2 and the interior bowl top contact of ball bowl bearing parts 5.
As shown in Figure 5 b, described bulb to be measured is hemisphere bearing part 6, and the second cylindrical part 13 of moving-coil 1 is positioned at determines ring support 2 inside, and the second cylindrical part 13 of moving-coil 1 forms the inner chamber of holding portion hemisphere bearing part 6; Second cylindrical part 13 of moving-coil 1 contacts with the outer bowl bottom of hemisphere bearing part 6, determines the cylindrical part of ring support 2 and the outer bowl top contact of hemisphere bearing part 6.
Wherein set nut with determine ring support and rely on the conical surface to fit, when set nut turns clockwise, the elastic construction determining ring support will shrink, thus the measuring staff cylindrical of " holding tightly " versatile smart dimension measuring implement, moving-coil is connected with versatile smart dimension measuring implement surveying work part by the standard thread on versatile smart dimension measuring implement gauge head, and utilizes versatile smart dimension measuring implement surveying work part guide rails to slide.
Wherein set nut, determining ring support utilizes elastic card pipe clamp principle elastic card pipe clamp mainly to utilize the elastic shrinkage of fixture and distortion to reach the object of clamping, this class formation can ensure had higher right alignment to be fixed on versatile smart dimension measuring implement measuring staff cylindrical between holding parts and fixture, moving-coil is connected with versatile smart dimension measuring implement surveying work part by versatile smart dimension measuring implement gauge head standard thread, moving-coil utilizes versatile smart dimension measuring implement surveying work part guide rails to slide, during measurement, this device is vertically placed on bulb to be measured, utilize measurement mechanism to conduct oneself with dignity to guarantee to determine ring support, moving-coil and bulb reliable contacts, versatile smart dimension measuring implement apparent value is converted and can draw sphere diameter size.
Determine there is 0.001-0.003mm gap between ring support 2 endoporus and versatile smart dimension measuring implement measuring staff cylindrical, determining ring support is fixedly locked by elastic card pipe clamp principle and eliminated respective clearance, guarantee that determining ring support reliably accurately fixes, ensure that measurement result is repeated reliably.
The verticality of male thread portion on moving-coil 11 and the upper and lower two horizontal end face A of moving-coil, end face B within 0.005mm, thus ensures that moving-coil 1 is connected reliably with versatile smart dimension measuring implement 4, and the direction of measurement of versatile smart dimension measuring implement 4 is vertical with end face B.
Described versatile smart dimension measuring implement is precision disc type indicating gauge, also referred to as: clock and watch clock gauge.Determine distance dependent between ring support 2 lower surface and moving-coil 1 lower surface when the apparent value of versatile smart dimension measuring implement 4 and measurement bulb, obtain the sphere diameter of bulb to be measured according to the variable quantity of versatile smart dimension measuring implement 4 apparent value when measurement standard part, bulb to be measured.
The measuring method of high precision sphere diameter on-position measure device is: when adopting sphere diameter variable quantity less, article two, between fixing chord length, the variable quantity of difference in height is approximately the measuring principle of definite value, by with the initial apparent value of standard component comparison determination measurement mechanism, contrast the sphere diameter that can converse tested bulb accurately again with dimension conversion table according to each apparent value variable quantity of measuring, the precision of measurement is 1.5 μm; Concrete grammar is:
Described high precision sphere diameter on-position measure device is vertically placed on standard component, rely on described high precision sphere diameter on-position measure device to conduct oneself with dignity to guarantee to determine ring support 2, moving-coil 1 respectively with standard component reliable contacts; Initial apparent value is determined according to the displayed value of versatile smart dimension measuring implement 4;
Described high precision sphere diameter on-position measure device is vertically placed on bulb to be measured, rely on described high precision sphere diameter on-position measure device to conduct oneself with dignity to guarantee to determine ring support 2, moving-coil 1 respectively with bulb reliable contacts to be measured, as shown in Figure 5; Determine to measure apparent value according to the displayed value of versatile smart dimension measuring implement 4;
Measurement apparent value and initial apparent value are subtracted each other acquisition difference, searches according to described difference the sphere diameter that bulb to be measured determined by dimension conversion table, thus complete the measurement to measured workpiece size.
When bulb to be measured is ball bowl bearing parts 5, standard component is standard ball bowl; When bulb to be measured is hemisphere bearing part 6, standard component is standard ball.
The size table of comparisons for using when the diameter ball bowl bearing parts that is Φ about 15 adopts this device to carry out dimensional measurement as shown in table 1, wherein the 3rd row " determine ring support end face with moving-coil face height is poor " are the theoretical value using AutoCAD graphics software to calculate, the 4th arrange each value be the 3rd arrange in the difference of adjacent rows numerical value.
The table 1 Φ 15 ball bowl bearing parts measurement size table of comparisons
| Sequence number | Ball bowl diameter | Determine ring support end face and moving-coil face height is poor | Adjacent dimensional height is poor |
| 1 | Φ14.985 | 4.2797 | 0 |
| 2 | Φ14.990 | 4.2729 | 0.0068 |
| 3 | Φ14.995 | 4.2661 | 0.0068 |
| 4 | Φ15.000 | 4.2593 | 0.0068 |
| 5 | Φ15.005 | 4.2526 | 0.0067 |
| 6 | Φ15.010 | 4.2459 | 0.0067 |
| 7 | Φ15.015 | 4.2393 | 0.0066 |
| 8 | Φ15.020 | 4.2328 | 0.0065 |
Now illustrate as follows to the service condition of this device:
If the standard ball bowl diameter used is Φ 14.995, then now the measurement size table of comparisons will be transformed to table 2.First use standard ball bowl to carry out " school zero " operation to this measurement mechanism in spherical diameter measurement process (measurement mechanism fully to be contacted with standard ball bowl, by the dial plate of rotary with precise measure measurer, hand of dial is referred at zero graduation line), then measurement mechanism is placed on ball bowl to be measured, ensure that measurement mechanism fully contacts with ball bowl to be measured, record now dial reading comparing with table 2 the 5th column data, thus find ball bowl diameter value to be measured.Such as: dial reading is-0.0135, then known by table 2, ball bowl diameter to be measured is Φ 15.005.
Table 2 Φ 15 ball bowl bearing parts measurement size table of comparisons example
The unexposed technology of the present invention belongs to general knowledge as well known to those skilled in the art.
Claims (6)
1. a high precision sphere diameter on-position measure device, is characterized in that: comprise set nut (3), determine ring support (2), moving-coil (1) and versatile smart dimension measuring implement (4); Set nut (3) is positioned at determines ring support (2) outside, will determine ring support (2) be fixed on versatile smart dimension measuring implement measuring staff cylindrical by set nut (3);
Determining the middle formation through hole of ring support (2), determining ring support (2) and comprising the conical portion (21), male thread portion (22) and the cylindrical part (23) that are connected successively from the top down; Conical portion (21) outside surface is formed multiple groove (24); Through hole (25) diameter formed in the middle of cylindrical part (23) is larger than through hole (26) diameter formed in the middle of conical portion (21);
Set nut (3) comprises the conical portion (31) and cylindrical part (32) that are connected successively from the top down; Form cone-shaped hole (33) in the middle of conical portion (31) in set nut (3), the cylindrical part (32) in set nut (3) forms the female through hole of tool (34); The cone-shaped hole (33) of the described conical portion (21) and described set nut of determining ring support (2) coordinates, and the female through hole of tool (34) of the described male thread portion (22) and described set nut (3) of determining ring support (2) coordinates;
Moving-coil (1) comprises the male thread portion (11), the first cylindrical part (12) and the second cylindrical part (13) that are connected successively from the top down; The diameter of described second cylindrical part (13) is larger than the diameter of the first cylindrical part (12), relief groove (14) is had: moving-coil (1) is connected with versatile smart dimension measuring implement surveying work part by male thread portion (11) between male thread portion (11) with the first cylindrical part (12), second cylindrical part (13) of moving-coil (1) contacts with bulb to be measured respectively with the cylindrical part (23) determining ring support (2), and is positioned at above bulb to be measured;
The sphere diameter of bulb to be measured is obtained according to the variable quantity of versatile smart dimension measuring implement (4) apparent value when measurement standard part and bulb to be measured.
2. a kind of high precision sphere diameter on-position measure device according to claim 1, it is characterized in that: described bulb to be measured is ball bowl bearing parts (5), second cylindrical part (13) of moving-coil (1) stretches out from the cylindrical part determining ring support (2), and contacts with the interior bowl bottom of ball bowl bearing parts (5); Determine the cylindrical part of ring support (2) and the interior bowl top contact of ball bowl bearing parts (5).
3. a kind of high precision sphere diameter on-position measure device according to claim 1, it is characterized in that: described bulb to be measured is hemisphere bearing part (6), second cylindrical part (13) of moving-coil (1) is positioned at determines ring support (2) inside, and second cylindrical part (13) of moving-coil (1) forms the inner chamber of holding portion hemisphere bearing part (6); Second cylindrical part (13) of moving-coil (1) contacts with the outer bowl bottom of hemisphere bearing part (6), determines the cylindrical part of ring support (2) and the outer bowl top contact of hemisphere bearing part (6).
4. a kind of high precision sphere diameter on-position measure device according to claim 1, is characterized in that: determine ring support (2) and adopt brass with moving-coil.
5. a kind of high precision sphere diameter on-position measure device according to claim 1, is characterized in that: the male thread portion (11) of moving-coil and the verticality in moving-coil upper level-end face (A), lower level-end face end face (B) are within 0.005mm.
6. utilize the high precision sphere diameter on-position measure device described in the arbitrary claim of claim 1-5 to carry out the method for spherical diameter measurement, it is characterized in that: comprise the steps:
Described high precision sphere diameter on-position measure device is vertically placed on standard component, rely on described high precision sphere diameter on-position measure device to conduct oneself with dignity to guarantee to determine ring support (2), moving-coil (1) respectively with standard component reliable contacts; Displayed value according to versatile smart dimension measuring implement (4) determines initial apparent value;
Described high precision sphere diameter on-position measure device is vertically placed on bulb to be measured, rely on described high precision sphere diameter on-position measure device to conduct oneself with dignity to guarantee to determine ring support (2), moving-coil (1) respectively with bulb reliable contacts to be measured; Determine to measure apparent value according to the displayed value of versatile smart dimension measuring implement (4);
Measurement apparent value and initial apparent value are subtracted each other acquisition difference, searches according to described difference the sphere diameter that bulb to be measured determined by dimension conversion table.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410806495.7A CN104613845B (en) | 2014-12-19 | A kind of high-precision sphere diameter on-position measure device and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410806495.7A CN104613845B (en) | 2014-12-19 | A kind of high-precision sphere diameter on-position measure device and method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104613845A true CN104613845A (en) | 2015-05-13 |
| CN104613845B CN104613845B (en) | 2018-02-09 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113670173A (en) * | 2021-09-16 | 2021-11-19 | 陕西航天时代导航设备有限公司 | Ball diameter detection device and method for ball parts |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6145901A (en) * | 1984-08-10 | 1986-03-06 | Nagura Tekkosho:Kk | Automatic measuring machine for screw diameter |
| CN2879113Y (en) * | 2005-12-30 | 2007-03-14 | 上海电气液压气动有限公司液压泵厂 | Ball socket diameter measuring instrument |
| CN201522250U (en) * | 2009-04-21 | 2010-07-07 | 隆昌山川精密焊管有限责任公司 | Measuring tool used for bottom cover of shock absorber |
| CN201926411U (en) * | 2011-01-28 | 2011-08-10 | 河南中轴股份有限公司 | Device for measuring aperture of end-face central hole |
| CN102445137A (en) * | 2011-09-20 | 2012-05-09 | 飞翼股份有限公司 | Device for measuring radius of spherical crown and measuring method thereof |
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6145901A (en) * | 1984-08-10 | 1986-03-06 | Nagura Tekkosho:Kk | Automatic measuring machine for screw diameter |
| CN2879113Y (en) * | 2005-12-30 | 2007-03-14 | 上海电气液压气动有限公司液压泵厂 | Ball socket diameter measuring instrument |
| CN201522250U (en) * | 2009-04-21 | 2010-07-07 | 隆昌山川精密焊管有限责任公司 | Measuring tool used for bottom cover of shock absorber |
| CN201926411U (en) * | 2011-01-28 | 2011-08-10 | 河南中轴股份有限公司 | Device for measuring aperture of end-face central hole |
| CN102445137A (en) * | 2011-09-20 | 2012-05-09 | 飞翼股份有限公司 | Device for measuring radius of spherical crown and measuring method thereof |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113670173A (en) * | 2021-09-16 | 2021-11-19 | 陕西航天时代导航设备有限公司 | Ball diameter detection device and method for ball parts |
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