CN206037917U - Dark holecoaxiality measuring tool - Google Patents
Dark holecoaxiality measuring tool Download PDFInfo
- Publication number
- CN206037917U CN206037917U CN201620881814.5U CN201620881814U CN206037917U CN 206037917 U CN206037917 U CN 206037917U CN 201620881814 U CN201620881814 U CN 201620881814U CN 206037917 U CN206037917 U CN 206037917U
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- deep hole
- gauge rod
- measuring tool
- gauge
- spacer
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- A Measuring Device Byusing Mechanical Method (AREA)
Abstract
The utility model relates to a machining accuracy measures technical field, discloses a dark holecoaxiality measuring tool, including gauge rod, spacer and amesdial, the diameter of gauge rod is less than the aperture of deep hole set up deep hole cooperation unit on the gauge rod, a plurality of radial positions cooperation is realized with deep hole inner wall to deep hole cooperation unit, the spacer is rotatory to be set up the one end of gauge rod, the gauge stand of amesdial set up in on the spacer. The utility model provides an unable quick accurate measuring difficult problem of the long and thin dark holecoaxiality of actuating lever.
Description
Technical field
This utility model is related to machining accuracy field of measuring technique, particularly a kind of deep hole coaxiality measuring tool.
Background technology
The core component CRDM of nuclear-power reactor, its machining accuracy are very high, directly affect nuclear power station
Operational efficiency and safety.The drive rod endoporus axiality cylindrical with which require it is very high, but, due to drive rod it is big with the hole depth in hole
In 500mm, and aperture is relatively small, causes to be difficult to carry out accurate effectively measurement for axiality.
For passing through roundness measuring equipment or class the coaxality measurement as this deep hole base part of drive mechanism in prior art
As measuring instrument measure, it is the complex structure of this instrument, expensive, and must first adjust tested part when detecting,
Make the scene inspection that its datum axis is coaxial with the axis of rotation of instrument main shaft, detection efficiency is low, be not suitable for the production of high-volume part
Surveying needs.For deep-hole type parts, due to its complex structure, installation difficulty, this mode are not suitable at all.
Utility model content
The purpose of this utility model is to solve above-mentioned technical problem, there is provided a kind of deep hole coaxiality measuring tool, is
The coaxality measurement of deep-hole parts provides total solution.
This utility model is adopted the technical scheme that：
A kind of deep hole coaxiality measuring tool, is characterized in that, including gauge rod, spacer and amesdial, the diameter of the gauge rod
Less than the aperture of the deep hole, in the upper setting deep hole engagement unit of the gauge rod, the deep hole engagement unit and inner walls of deep holes
Realize that multiple radial positions coordinate, the spacer is rotatably provided in one end of the gauge rod, and the gauge stand of the amesdial is arranged at
On the spacer.
Further, the two ends of the gauge rod form multidiameter, and the deep hole engagement unit is two, is separately positioned on two ends
On multidiameter, the deep hole engagement unit includes circular orientation set, some beads, tapered sleeve and two springs, in the gauge rod
First spring, tapered sleeve, positioning sleeve, second spring are installed between axle ladder and end successively, and by nut screw connection multidiameter
Screw thread second spring is locked, some beads are arranged on positioning sleeve between tapered sleeve, the circumference of the positioning sleeve
On be uniformly provided with multiple openings, each opening on place a bead, the bead with diameter greater than the opening bore, and
When bead and opening coordinate, the spherical calotte of bead protrudes from amount of tolerance of the amount outside the opening more than deep hole.
Further, the gauge stand of the amesdial is Magnetic gauge stand.
Further, the quantity of the bead is three.
Further, the measurement position of described two deep hole engagement units is located at the deep hole near both ends position.
Further, the lower tolerance diametral of the deep hole is more than 0.01mm with the difference of the maximum gauge of gauge rod.
Further, the aperture of the deep hole is less than 45mm, and deep hole is more than 500mm.
The beneficial effects of the utility model are：
（1）It is simple to manufacture and measurement error is little；
（2）Need not can be used alone by other equipments, it is simple to operate, it is suitable for measure batch；
（3）Solve the elongated deep hole axiality of drive rod cannot quick accurate measurement a difficult problem；
（4) save the relatively cylindrical axiality of measurement high-volume CRDM drive rod two ends endoporus when
Between, save measurement cost.
Description of the drawings
Structural representation when accompanying drawing 1 is measurement of the present utility model（Double dot dash line is deep-hole parts）；
Accompanying drawing 2 is the partial enlarged drawing of I in accompanying drawing 1；
Accompanying drawing 3 is the A-A sectional views in accompanying drawing 1.
Label in figure is respectively：
1. gauge rod；2. deep hole；
3. spacer；4. micrometer；
5. positioning sleeve；6. bead；
7. tapered sleeve；8. the first spring；
9. second spring；10. deep hole engagement unit.
Specific embodiment
Below in conjunction with the accompanying drawings the specific embodiment of this utility model deep hole coaxiality measuring tool is elaborated.
Referring to accompanying drawing 1, the maximum gauge of the gauge rod 1 of deep hole coaxiality measuring tool is less than the aperture of deep hole 2, gauge rod 1
Two ends arrange deep hole engagement unit 10, and with inner walls of deep holes, deep hole engagement unit 10 realizes that multiple radial positions coordinate, deep hole coordinates
Unit 10 can be one or more, be two in fig. 1, be separately mounted to the two ends of gauge rod 1, for coordinating in deep hole 2
Near the coaxality measurement of both ends position.In one end rotary setting spacer 3 of gauge rod 1, spacer 3 is located at 1 exposed portion of gauge rod
End, when gauge rod 1 is coordinated by the inwall of deep hole engagement unit 10 and deep hole 2, the centrage of gauge rod 1 is same with deep hole 2
Axle degree tolerance value is passed out by the rotation of spacer 3, then the measurement between the outer wall by micrometer 4 and deep hole 2, obtains depth
The coaxial angle value of hole 2 and outer wall.
Referring to accompanying drawing 2,3, the two ends of gauge rod 1 form multidiameter, and deep hole engagement unit 10 is two, is separately positioned on two ends
On multidiameter, deep hole engagement unit 10 includes that circular orientation covers 5, three beads 6, tapered sleeve 7 and two springs, in the axle of gauge rod 1
First spring 8, tapered sleeve 7, positioning sleeve 5, second spring 9 are installed between ladder and end successively, and pass through nut screw connection multidiameter
On screw thread second spring 9 is locked, bead 6 is arranged between the tapered sleeve 7 on positioning sleeve 5, on the circumference of positioning sleeve 5
It is even to be provided with multiple openings, place a bead 6 on each opening, bead 6 with diameter greater than opening bore, and bead 6 with open
When mouth coordinates, the spherical calotte of bead 6 protrudes from amount of tolerance of the amount outside being open more than deep hole 2.
The survey tool course of work of this patent is as follows, in the deep hole 2 that gauge rod 1 is inserted, is bored by spring axial compression
Set 7 and positioning sleeve 5, are made circumferential uniform 3 beads, 6 radially equidistant abjection, are close to the inwall of deep hole 2, deep hole 2 now
The center of circle it is consistent with the center of circle of gauge rod 1.The two ends of the length of deep hole 2 respectively arrange deep hole engagement unit 10.Due to spacer 3 and gauge rod
1 is coaxial, and spacer 3 is installed on gauge rod 1 by little round nut, spacer 3 and bearing.Amesdial 3 and its Magnetic gauge stand be adsorbed in every
On set 3, and origin reference location is carried out with deep hole outer wall first, now rotate spacer 3 and can measure axiality of the deep hole relative to outer wall.
The revolution of amesdial 3 selects high-precision bearing, steel ball to select high accuracy grade；Machining need to only ensure gauge rod
The axiality of 1 cylindrical, and the accuracy of manufacture of 7 two findings of positioning sleeve 5 and tapered sleeve.By said method, it is ensured that
Measurement error≤0.035mm, meets the requirement of drive rod deep hole axiality 0.10mm.The external diameter of gauge rod 1 and drive rod deep hole
Lower tolerance diametral, gap is 0.01mm, also can be used as the whether qualified drift of preliminary surveying drive rod deep hole.Suitable for elongated depth
Hole（The deep about 550mm of diameter about 45mm）The measurement of axiality.As the positioning using two groups of steel balls is arranged, it is that measurement length is more than
The deep hole axiality of 500mm provides a kind of feasible instrument, is especially suitable for elongated deep hole.
The above is only preferred implementation of the present utility model, it is noted that for the common skill of the art
Art personnel, on the premise of without departing from this utility model principle, can also make some improvements and modifications, these improvements and modifications
Also should be regarded as protection domain of the present utility model.
Claims (7)
1. a kind of deep hole coaxiality measuring tool, it is characterised in that：Including gauge rod, spacer and amesdial, the diameter of the gauge rod
Less than the aperture of the deep hole, in the upper setting deep hole engagement unit of the gauge rod, the deep hole engagement unit and inner walls of deep holes
Realize that multiple radial positions coordinate, the spacer is rotatably provided in one end of the gauge rod, and the gauge stand of the amesdial is arranged at
On the spacer.
2. deep hole coaxiality measuring tool according to claim 1, it is characterised in that：The two ends of the gauge rod form ladder
Axle, the deep hole engagement unit are two, are separately positioned on the multidiameter of two ends, and the deep hole engagement unit includes circular orientation
Set, some beads, tapered sleeve and two springs, installed between the axle ladder of the gauge rod and end successively the first spring, tapered sleeve,
Positioning sleeve, second spring, and second spring is locked by the screw thread on nut screw connection multidiameter, some beads set
It is placed on positioning sleeve between tapered sleeve, on the circumference of the positioning sleeve, is uniformly provided with multiple openings, placement one is little on each opening
Ball, the bead with diameter greater than the opening bore, and bead, when coordinating with opening, the spherical calotte of bead protrudes from institute
State amount of tolerance of the amount outside being open more than deep hole.
3. deep hole coaxiality measuring tool according to claim 2, it is characterised in that：The gauge stand of the amesdial is magnetic
Gauge stand.
4. deep hole coaxiality measuring tool according to claim 2, it is characterised in that：The quantity of the bead is three.
5. the deep hole coaxiality measuring tool according to any one of claim 2 to 4, it is characterised in that：Described two depths
The measurement position of hole engagement unit is located at the deep hole near both ends position.
6. the deep hole coaxiality measuring tool according to any one of claim 2 to 4, it is characterised in that：The deep hole
Lower tolerance diametral is more than 0.01mm with the difference of the maximum gauge of gauge rod.
7. the deep hole coaxiality measuring tool according to any one of claim 2 to 4, it is characterised in that：The deep hole
Aperture is less than 45mm, and deep hole is more than 500mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620881814.5U CN206037917U (en) | 2016-08-16 | 2016-08-16 | Dark holecoaxiality measuring tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620881814.5U CN206037917U (en) | 2016-08-16 | 2016-08-16 | Dark holecoaxiality measuring tool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206037917U true CN206037917U (en) | 2017-03-22 |
Family
ID=58306152
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620881814.5U Active CN206037917U (en) | 2016-08-16 | 2016-08-16 | Dark holecoaxiality measuring tool |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206037917U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106052536A (en) * | 2016-08-16 | 2016-10-26 | 上海第机床厂有限公司 | Deep hole coaxiality measuring tool |
-
2016
- 2016-08-16 CN CN201620881814.5U patent/CN206037917U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106052536A (en) * | 2016-08-16 | 2016-10-26 | 上海第机床厂有限公司 | Deep hole coaxiality measuring tool |
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