CN106969712A - Screw thread drift meter - Google Patents
Screw thread drift meter Download PDFInfo
- Publication number
- CN106969712A CN106969712A CN201710079479.6A CN201710079479A CN106969712A CN 106969712 A CN106969712 A CN 106969712A CN 201710079479 A CN201710079479 A CN 201710079479A CN 106969712 A CN106969712 A CN 106969712A
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- China
- Prior art keywords
- linear bearing
- measured
- fixed
- chassis
- screw thread
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000005259 measurement Methods 0.000 claims abstract description 53
- 230000007246 mechanism Effects 0.000 claims abstract description 43
- 230000006978 adaptation Effects 0.000 claims description 2
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 229910000831 Steel Inorganic materials 0.000 description 5
- 239000010959 steel Substances 0.000 description 5
- 239000011324 bead Substances 0.000 description 3
- 238000001514 detection method Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000003780 insertion Methods 0.000 description 2
- 230000037431 insertion Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000011159 matrix material Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000005096 rolling process Methods 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000013016 damping Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B11/00—Measuring arrangements characterised by the use of optical techniques
- G01B11/02—Measuring arrangements characterised by the use of optical techniques for measuring length, width or thickness
Abstract
The invention discloses a kind of screw thread drift meter, including chassis, chassis is provided with load carrier and measuring mechanism, and the chassis is provided with sliding equipment, and load carrier and measuring mechanism on the sliding mechanism can the relative slips of horizontal direction；The bearing of trend length measuring instrument consistent with the glide direction of measuring mechanism is additionally provided with chassis；Measuring mechanism includes the measurement bar being vertically movable, and measurement bar is connected with gauge head below free end；Measure and produced on length measuring instrument after numerical value for the first time, then be fixed on reverser nut to be measured is axial opposed on load carrier, same positioning hole is upward；Reuse gauge head and touch measurement point, new numerical value is produced on length measuring instrument, the half of the old and new's two values difference is the deviation of reverser nut interior threaded passage to be measured in the axial direction.The beneficial effects of the invention are as follows：Reverser nut raceway groove can accurately be measured is axially displaced from degree.
Description
Technical field
It is more particularly to a kind of to be used to measure screw mandrel reverser screw thread process skew journey the invention belongs to measuring apparatus field
The screw thread drift meter of degree.
Background technology
In high-end precision equipment, screw mandrel and reverser can be usually used.Reverser is used cooperatively with screw mandrel, can be by
Circular motion and the mutual phase transformation that moves along a straight line.The core part of reverser is that insertion is set on a reverser nut, its side wall
There is reverser hole, during work, the ball in the internal whorl raceway groove of reverser nut can be skidded off out of reverser hole, be fallen into down
One threaded passage, and constantly circulate.Chinese patent literature CN 201836324U, disclose " a kind of new on May 18th, 2011
Type bead reverser ", including conduit, ball are placed in the conduit, it is characterised in that：The bead reverser also includes base
Body, described matrix is connected with the conduit.The utility model uses honeycomb fashion basal body structure, when generation between ball and reverser
During collision, interlaced honeycomb fashion matrix can dissipate big energy, damping action be played, so as to reduce ball screw assembly,
Noise, extend the service life of bead reverser, make ball screw assembly, performance more steady.Due to the spiral shell of reverser nut
Rolling friction is carried out between groove road and the threaded passage of screw mandrel by medium of ball, therefore whether ball can be smoothly from reverse
Skid off and fallen into next threaded passage in device hole, be to ensure that the key of ball-recirculation and the secondary normal work of screw mandrel reverser.
In the process of reverser nut, if threaded passage position deviation occurs in the axial direction of reverser nut, rolling will be made
There is clamping stagnation when skidding off or fall into next threaded passage from reverser hole in pearl, causes screw mandrel reverser pair using not smooth, enters
And the precise motion of equipment can be influenceed.For the manufacturing enterprise secondary to screw mandrel reverser, it can add on the side wall of reverser nut
Man-hour radially synchronously generates reverser hole and positioning hole, but positioning hole is only used for determining in post-production process for a long time
Position is used.Enterprise lacks always for a long time a kind of can accurately measure the instrument for being axially displaced from degree of reverser nut raceway groove
Device, therefore be difficult control product quality.
The content of the invention
The technical problem to be solved in the invention is to lack a kind of axial direction that can accurately measure reverser nut raceway groove partially
From the instrument of degree, so as to provide a kind of screw thread drift meter, being axially displaced from for reverser nut raceway groove can be accurately measured
Degree.
To achieve these goals, the present invention is adopted the following technical scheme that：A kind of screw thread drift meter, including chassis,
Chassis is provided with load carrier and measuring mechanism, and the chassis is provided with sliding equipment, and load carrier and measuring mechanism are being slided
Can the relative slip of horizontal direction in mechanism；The bearing of trend length degree consistent with the glide direction of measuring mechanism is additionally provided with chassis
Amount instrument；Reverser nut to be measured is fixed on load carrier with the axial direction direction consistent with measuring mechanism glide direction, positioning
Hole is upward；Measuring mechanism includes the measurement bar being vertically movable, and measurement bar is connected with gauge head below free end, by measurement bar liter
To suitable position, level is pushed into reverser nut interior to be measured, and gauge head is touched into measurement point；Measurement point is to be now placed in treating
Survey the point of the position in reverser nut interior threaded passage closest to pilot hole axes correspondence on the wall of opposite side side；It is first to survey
Amount is produced after numerical value on length measuring instrument, then is fixed on reverser nut to be measured is axial opposed on load carrier, together
Sample positioning hole is upward；Reuse gauge head and touch measurement point, new numerical value, the old and new's two values are produced on length measuring instrument
The half of difference is the deviation of reverser nut interior threaded passage to be measured in the axial direction.
The technical program devises the load carrier and measuring measuring machine for carrying reverser nut to be measured on chassis
Structure.Because measurement is to the axial deviation to the internal thread raceway groove for being reverser nut to be measured, therefore this programme is by load carrier
With measuring mechanism be set on chassis can level relative slip, while being also provided with length measuring instrument, survey can be shown
The measurement position of measuring mechanism.For the ease of measurement, measurement bar is set to move up and down, to stretch into reverser spiral shell to be measured
When inside female spiral hole, facilitate contact of the gauge head with measurement point.In measurement, by reverser nut to be measured axially along carrying machine
The glide direction of structure is placed on load carrier, by positioning hole upward, then slides measuring mechanism, stretches into measurement bar to be measured reverse
Inside device nut thread hole, then measurement bar is fallen, measurement point is touched to gauge head, it is possible to one is obtained on length measuring instrument
Numerical value.Then by the oppositely positioned side again of reverser nut to be measured once, it is possible to obtain second numerical value.The difference of two values
Half is exactly the deviation of reverser nut interior threaded passage to be measured in the axial direction.In theory, the position that gauge head is touched is fixed
Immediate position in threaded passage of the axis correspondence in position hole on reverser nut opposite side inwall to be measured, but this
Sample is measured it is difficult to ensure that in reverse measuremenet second, the position of positioning hole measured twice is consistent, and gauge head is measured twice
In radial motion position also be difficult to be consistent, therefore limit positioning hole upwards and gauge head direction is easier to operate to downwards.
Preferably, the load carrier is carrier block, on carrier block along itself slidably direction provided with opening to
On groove, for reverser nut to be measured be adapted to be placed on groove.In order that the fixation that reverser nut to be measured can be stablized
On load carrier, a carrier block can be set in load carrier, and on the upper surface of carrier block along itself slidably
Direction is provided with the groove of opening upwards.Groove insertion carrier block in the longitudinal direction, makes reverser nut to be measured in both direction
On can be adapted to be placed in.
Preferably, the groove on the carrier block is V-shaped groove.The structures shape of V-shaped groove it can be adapted to various diameters
Reverser nut to be measured place.
Preferably, also including detent mechanism；The detent mechanism provided with lower section be fixed on sliding equipment on chassis and
The locating rod that can be slided up and down on the sliding mechanism, locating rod is stretched out in the horizontal direction, and its free end is provided with downward alignment pin,
Alignment pin is adapted to the positioning hole of reverser nut to be measured.In order to increase the fixed effect to reverser nut to be measured, this programme
In devise the locating rod that can slide up and down, when reverser nut to be measured is placed on load carrier, locating rod glides, fixed
Position pin is just caught in positioning hole, is completely fixed reverser nut to be measured, can not both circumferentially rotate, can not move axially again, right
Finally obtain accurate measurement data very helpful.
Preferably, the length measuring instrument is grating scale.Grating scale has detection range big, and accuracy of detection is high, rings
Fireballing feature is answered, is especially suitable for measuring the reverser nut to be measured of high-precision requirement.
Preferably, also including display, the information of grating scale is shown from display.Grating scale is shown using display
Information, it is apparent more directly perceived, be conducive to improving detection efficiency.
Preferably, the chassis is provided with Linear bearing guide rail, what can be horizontally slipped on Linear bearing guide rail is provided with 2
Linear bearing, load carrier and measuring mechanism are individually fixed on one of linear bearing.Using Linear bearing guide rail and directly
The mode that bobbin is held, can obtain the mobile effect of very smooth steady, and the interference of outer bound pair measurement accuracy is reduced as far as possible.
Preferably, the measuring mechanism also includes measurement bar sliding shoe, measurement bar sliding shoe is fixed on can be on chassis
Linear bearing guide rail on level slide linear bearing on, measurement bar sliding shoe be provided with Linear bearing guide rail, linear bearing
It can slide up and down on guide rail provided with linear bearing, the fixing end of measurement bar is fixed on linear bearing.As hereinbefore, it is our
Case is same to be defined as the up and down mode of measurement bar to use cooperatively using Linear bearing guide rail and linear bearing.
Preferably, the detent mechanism also includes perpendicular fixed plate and bearing diagonal plate；Perpendicular fixed plate vertically be fixed on bottom
On plate, bearing diagonal plate connects perpendicular fixed plate and chassis respectively, forms skewed horizontal load；Perpendicular fixed plate is provided with Linear bearing guide rail,
It can slide up and down on Linear bearing guide rail provided with linear bearing, locating rod is relatively fixed with linear bearing position.Detent mechanism
When being positioned, easily because the deviation of itself causes positioning deviation occur, therefore this programme is that perpendicular fixed plate devises oblique branch
Fagging carries out skewed horizontal load, forms stable triangle.
Preferably, the bearing diagonal plate is 2, the left and right sides of perpendicular fixed plate is connected respectively；In the perpendicular fixed plate
The Linear bearing guide rail being provided with is 2, is respectively arranged on the left and right sides of perpendicular fixed plate；Linear axis on 2 Linear bearing guide rails
One locating rod fixed block of connection jointly is held, the fixing end of locating rod is fixed on locating rod fixed block.This programme is further right
Detent mechanism has carried out the reinforcing of structure, and further ensures the stability of slip.
Preferably, the gauge head is the steel ball of threaded blind hole, it is fastened by bolts in the free end of measurement bar.Use
Steel ball can effectively reduce the degree of wear, increase the service life as gauge head, improve measurement accuracy.Do not reached when wearing up to precision
, can be simply by screw thread dismounting and change after mark.
As selected, the cross sectional shape of the steel ball is consistent with the ball cross sectional shape that reverser nut to be measured is matched.This
Sample can be best position of the reduction ball in reverser nut raceway groove, can farthest improve the accurate of measurement point
Degree.
In summary, the beneficial effects of the invention are as follows：Reverser nut raceway groove can accurately be measured is axially displaced from degree.
Brief description of the drawings
Fig. 1 is the structural representation of the present invention.
Fig. 2 is the schematic diagram that reverser nut to be measured is placed on carrier block.
Fig. 3 is the structural representation of measuring mechanism.
Wherein：2 reverser nuts to be measured, 11 chassis, 12 grating scales, 13 displays, 21 positioning holes, 22 reverser holes, 23
Threaded passage, 31 measurement bars, 32 gauge heads, 33 measurement bar sliding shoes, 34 measurement bar fixed blocks, 41 carrier blocks, 42V shape grooves, 51 determine
Position bar, 52 alignment pins, 53 perpendicular fixed plates, 54 bearing diagonal plates, 55 locating rod fixed blocks, 61 Linear bearing guide rails, 62 linear bearings.
Embodiment
The present invention will be further described with embodiment below in conjunction with the accompanying drawings.
As shown in figure 1, being a kind of screw thread drift meter, it is specifically used to measure the internal thread ditch of high-precision reverser nut
Road is in the upward deviation of nut shaft.The screw thread drift meter includes chassis 11 and load carrier, measuring mechanism, detent mechanism.
On chassis level provided with left and right to Linear bearing guide rail 61, Linear bearing guide rail carries machine provided with 2 linear bearings 62
Structure is fixed on the linear bearing in left side, and measuring mechanism is fixed on the linear bearing on right side, makes load carrier and measuring mechanism
Can be with relative motion.
As shown in Fig. 2 load carrier is a carrier block 41, slidably opening upwards are provided with direction along itself on carrier block
V-shaped groove 42, be available for being placed on groove for reverser nut to be measured adaptation to measure.
As shown in figure 3, measuring mechanism includes measurement bar sliding shoe 33, measurement bar sliding shoe is fixed on the linear axis on chassis
Hold, its own on this Linear bearing guide rail, is combined with linear bearing provided with a vertical Linear bearing guide rail
It can slide up and down.Measurement bar fixed block 34, measurement bar fixed block and the fixing end on the right side of measurement bar 31 are fixed with linear bearing
Fix, and on the free end on the left of measurement bar, be fixed with gauge head 32.Gauge head is the steel ball of threaded blind hole, is fastened by bolts
In the free end of measurement bar.The cross sectional shape of steel ball is consistent with the ball cross sectional shape that reverser nut to be measured is matched.
As shown in figure 1, detent mechanism is provided with perpendicular fixed plate 53, vertical is fixed on chassis, erects the rear side two of fixed plate
Side carries out skewed horizontal load with a bearing diagonal plate 54 respectively, and the two ends of bearing diagonal plate connect perpendicular fixed plate and chassis respectively.It is perpendicular solid
Matched on Linear bearing guide rail of the front side of fixed board provided with 2 vertical directions, each Linear bearing guide rail provided with one can on
The linear bearing of lower slider, this 2 linear bearings are all fixed on a locating rod fixed block 55, the middle part of locating rod fixed block
It is fixed with locating rod 51, the stretching of locating rod forward horizontal, its free end and is fixed with the downward alignment pin 52 of axis.
Grating scale 12 is additionally provided with chassis, the length direction of grating scale is consistent with the glide direction of measuring mechanism.Grating scale
Information shown from display 13.
When measuring, first reverser nut 2 to be measured is placed on diameter parallel in the direction of measuring mechanism glide direction and held
On the V-groove for carrying block, such as state as shown in Figure 1, and, now anti-by the positioning hole 21 on reverser nut to be measured upward
To device hole 22 towards sideways.Then locating rod is fallen, alignment pin is firmly sold and determines positioning hole, no matter makes reverser nut to be measured
Still all firmly fixed in the axial direction circumferentially.Then traverse measurement bar is treated to suitable height, and by measurement bar propulsion
In the screwed hole for surveying reverser nut, measurement point is touched with gauge head, makes to show numerical value on grating scale.Measurement point is positioned to be measured anti-
The point of position into device nut interior threaded passage closest to pilot hole axes correspondence on the wall of opposite side side.For the ease of meter
Calculate, the numerical value shown on grating scale can be now zeroed, second of measurement based on this position., will when measuring second
Reverser nut to be measured is oppositely positioned in the axial direction on the V-groove of carrier block, equally by positioning hole upward, is then surveyed
Amount, and show on grating scale numerical value, the half of numerical value now is reverser nut interior threaded passage to be measured in axial direction
On deviation.
Claims (10)
1. a kind of screw thread drift meter, including chassis（11）, chassis be provided with load carrier and measuring mechanism, it is characterized in that,
The chassis is provided with sliding equipment, and load carrier and measuring mechanism on the sliding mechanism can the relative slips of horizontal direction；Chassis
On be additionally provided with the bearing of trend length measuring instrument consistent with the glide direction of measuring mechanism；Reverser nut to be measured（2）With axle
It is fixed on to the direction consistent with measuring mechanism glide direction on load carrier, positioning hole（21）Upward；Measuring mechanism includes can
The measurement bar of vertical shift（31）, measurement bar is connected with gauge head below free end（32）, measurement bar is risen into suitable position,
Level is pushed into reverser nut interior to be measured, and gauge head is touched into measurement point；Measurement point is to be now placed in reverser nut to be measured
The point of position in internal whorl raceway groove closest to pilot hole axes correspondence on the wall of opposite side side；Measure for the first time in length measuring
Produce after numerical value, then be fixed on reverser nut to be measured is axial opposed load carrier on instrument, same positioning hole is upward；
Reuse gauge head and touch measurement point, new numerical value is produced on length measuring instrument, the half of the old and new's two values difference is
The deviation of reverser nut interior threaded passage to be measured in the axial direction.
2. a kind of screw thread drift meter according to claim 1, it is characterized in that, the load carrier is a carrier block
（41）, slidably the grooves of opening upwards is provided with direction along itself on carrier block, for being placed on that reverser nut to be measured is adapted to
On groove.
3. a kind of screw thread drift meter according to claim 2, it is characterized in that, the groove on the carrier block is V-arrangement
Groove（42）.
4. a kind of screw thread drift meter according to claim 1 or 2 or 3, it is characterized in that, in addition to detent mechanism；Institute
State the sliding equipment that detent mechanism is fixed on chassis provided with lower section and the locating rod that can be slided up and down on the sliding mechanism（51）,
Locating rod is stretched out in the horizontal direction, and its free end is provided with downward alignment pin（52）, alignment pin determines with reverser nut to be measured
Position hole adaptation.
5. a kind of screw thread drift meter according to claim 1 or 2 or 3, it is characterized in that, the length measuring instrument is
Grating scale（12）.
6. a kind of screw thread drift meter according to claim 5, it is characterized in that, in addition to display（13）, grating scale
Information shown from display.
7. a kind of screw thread drift meter according to claim 1 or 2 or 3, it is characterized in that, the chassis is provided with straight line
Bearing guide（61）, can horizontally slip on Linear bearing guide rail provided with 2 linear bearings（62）, load carrier and measuring mechanism
It is individually fixed on one of linear bearing.
8. a kind of screw thread drift meter according to claim 7, it is characterized in that, the measuring mechanism also includes measurement bar
Sliding shoe（33）, measurement bar sliding shoe be fixed on can on the Linear bearing guide rail on chassis level slide linear bearing on,
Measurement bar sliding shoe is provided with Linear bearing guide rail, Linear bearing guide rail and can slide up and down provided with linear bearing, measurement bar
Fixing end be fixed on linear bearing.
9. a kind of screw thread drift meter according to claim 4, it is characterized in that, the detent mechanism also includes perpendicular fixation
Plate（53）With bearing diagonal plate（54）；Perpendicular fixed plate being fixed on bottom plate vertically, bearing diagonal plate connects perpendicular fixed plate and bottom respectively
Disk, forms skewed horizontal load；Perpendicular fixed plate is provided with Linear bearing guide rail, Linear bearing guide rail and can slide up and down provided with straight line
Bearing, locating rod is relatively fixed with linear bearing position.
10. a kind of screw thread drift meter according to claim 9, it is characterized in that, the bearing diagonal plate is 2, respectively
The left and right sides of the perpendicular fixed plate of connection；The Linear bearing guide rail that the perpendicular fixed plate is provided with is 2, is respectively arranged on perpendicular fixed plate
The left and right sides；Linear bearing on 2 Linear bearing guide rails connects a locating rod fixed block jointly（55）, locating rod consolidates
Fixed end is fixed on locating rod fixed block.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710079479.6A CN106969712A (en) | 2017-02-14 | 2017-02-14 | Screw thread drift meter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710079479.6A CN106969712A (en) | 2017-02-14 | 2017-02-14 | Screw thread drift meter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106969712A true CN106969712A (en) | 2017-07-21 |
Family
ID=59334399
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710079479.6A Pending CN106969712A (en) | 2017-02-14 | 2017-02-14 | Screw thread drift meter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106969712A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109323638A (en) * | 2018-10-16 | 2019-02-12 | 丽水市杰祥科技有限公司 | A kind of characterization processes and its detection device of feed screw nut's internal screw thread |
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2017
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|---|---|---|---|---|
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109323638A (en) * | 2018-10-16 | 2019-02-12 | 丽水市杰祥科技有限公司 | A kind of characterization processes and its detection device of feed screw nut's internal screw thread |
| CN109323638B (en) * | 2018-10-16 | 2020-11-03 | 丽水市杰祥科技有限公司 | Detection process and detection equipment for internal thread of screw nut |
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| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170721 |
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| RJ01 | Rejection of invention patent application after publication |