CN109990749A - A kind of measurement screw hole position tolerance auxiliary device - Google Patents
A kind of measurement screw hole position tolerance auxiliary device Download PDFInfo
- Publication number
- CN109990749A CN109990749A CN201910371910.3A CN201910371910A CN109990749A CN 109990749 A CN109990749 A CN 109990749A CN 201910371910 A CN201910371910 A CN 201910371910A CN 109990749 A CN109990749 A CN 109990749A
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- China
- Prior art keywords
- screw hole
- measurement
- thread
- handle
- thread plug
- 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.)
- Granted
Links
- 238000005259 measurement Methods 0.000 title claims abstract description 59
- 230000007246 mechanism Effects 0.000 claims abstract description 10
- 230000000903 blocking effect Effects 0.000 claims description 8
- 239000007937 lozenge Substances 0.000 claims description 7
- 238000000926 separation method Methods 0.000 claims description 5
- 238000009434 installation Methods 0.000 claims description 4
- 238000001514 detection method Methods 0.000 abstract description 5
- 230000009471 action Effects 0.000 description 6
- 238000010586 diagram Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 230000006872 improvement Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000008569 process 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
- G01B21/00—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E30/00—Energy generation of nuclear origin
- Y02E30/30—Nuclear fission reactors
Abstract
The invention discloses a kind of measurement screw hole position tolerance auxiliary devices, belong to hole detection technique field, the auxiliary device includes measurement handle, one end of the measurement handle is equipped with the thread plug for being less than screw hole internal diameter to be measured with the diameter of its arranged off-centre, side far from the measurement arbor heart on the thread plug is equipped with drift screw thread compatible with the screw hole to be measured, the other side is equipped with for the jacking mechanism by the thread plug top to the screw hole surface to be measured, the axle center of the drift screw thread is conllinear with the measurement axle center of handle, the jacking mechanism includes that wedge shape holds out against head, guide plate and the wedge shape is held out against into the elastic piece that head is connect with guide plate.It is high, at low cost that the present invention cooperates three coordinate machine that can effectively measure screw hole position tolerance, measurement efficiency.
Description
Technical field
The present invention relates to hole detection technique fields, more specifically, it relates to a kind of measurement screw hole position tolerance auxiliary device.
Background technique
For the position measurement of screw hole group, there are mainly three types of modes at present: first is that directly measuring screw hole using three coordinate machine
The shortcomings that position degree of the position degree of bottom outlet as screw hole group, such mode is that the position degree of screw hole bottom outlet not can truly reflect
The axial location degree of screw hole group;Second is that being measured using auxiliary pin and three coordinate machine, auxiliary pin is equipped with the spiral shell being adapted to screw hole
Auxiliary pin is completely screwed into and reuses three coordinate machine after screw hole to measure the position of auxiliary pin, to obtain the position of screw hole group by line
The shortcomings that degree of setting, such mode is to assist pin to need to be completely screwed into screw hole could effectively measure, and auxiliary pin screws in, expense is compared in back-out
When, measurement efficiency is low;Third is that the special measurement machine using screw thread gauge head measures, special measurement machine is expensive, general production enterprise
Industry cannot achieve.
Summary of the invention
The technical problem to be solved by the present invention is to be directed to the above-mentioned deficiency of the prior art, the present invention provides a kind of three seat of cooperation
Mark machine can effectively measure screw hole position tolerance, measurement efficiency height, measurement screw hole position tolerance auxiliary device at low cost.
The technical scheme is that a kind of measurement screw hole position tolerance auxiliary device, including measurement handle, the measurement handle
One end is equipped with the thread plug for being less than screw hole internal diameter to be measured with the diameter of its arranged off-centre, the separate measurement handle on the thread plug
The side in axle center is equipped with drift screw thread compatible with the screw hole to be measured, the other side be equipped with for by the thread plug top to institute
The jacking mechanism on screw hole surface to be measured is stated, the axle center of the drift screw thread is conllinear with the measurement axle center of handle, and described holds out against
Mechanism includes that wedge shape holds out against head, guide plate and the wedge shape is held out against the elastic piece that head is connect with guide plate.
As a further improvement, the thread plug, which is equipped with, holds out against a compatible wedge groove, institute with the wedge shape
The measurement handle stated is equipped with the guide groove for installing the guide plate, and the guide groove extends to the thread plug.
Further, the side that the wedge shape holds out against head is equipped with the lozenges being slidably connected with the wedge groove, the other side
Equipped with arcwall face.
Further, the junction of the elastic piece and guide plate is equipped with the elastic portion that two sides are narrowed.
Further, spring and blocking are equipped in the measurement handle, the both ends of the spring hold out against described lead respectively
To plate, blocking.
Further, the measurement handle periphery is arranged with the guide sleeve for wrapping up the guide plate, the measurement handle with
It is interference fit between guide sleeve.
Further, the thread plug, which is equipped with, is axially separated into two-part separation trough for the drift screw thread.
Further, the thread plug is equipped with the first chamfered edge structure.
Beneficial effect
Compared with prior art, the present invention having the advantage that are as follows: thread plug is first inserted into screw hole hole to be measured in the present invention
Bottom nearby makes guide plate hold out against end surface of screw hole to be measured, then rotates thread plug, and thread plug holds out against that head is opposite to be slided with wedge shape, in wedge shape
Under the action of slot, wedge shape holds out against head and holds out against thread plug on screw hole surface to be measured, realizes that thread plug screws, then sit by cooperation three
The position degree of mark machine testing measurement handle can effectively measure screw hole position tolerance, and the time of screw thread plug is short, and measurement efficiency is high, this
Invention overall structure is simple, and number of parts is few, at low cost.
Detailed description of the invention
Fig. 1 is the structural diagram of the present invention;
Fig. 2 is the structural schematic diagram of practical application of the present invention;
Fig. 3 is the schematic view of the front view of thread plug in the present invention;
Fig. 4 is the backsight structural representation of thread plug in the present invention;
Fig. 5 is the cross-sectional view in the direction A-A in Fig. 3;
Fig. 6 is the overlooking structure diagram of thread plug in the present invention;
Fig. 7 is the structural schematic diagram of jacking mechanism in the present invention.
Wherein: 1- measurement handle, 2- screw hole to be measured, 3- thread plug, 4- drift screw thread, 5- wedge shape hold out against head, 6- guide plate, 7-
Elastic piece, 8- wedge groove, 9- guide groove, 10- lozenges, 11- arcwall face, 12- elastic portion, 13- spring, 14- blocking, 15- are led
To set, 16- separation trough, the first chamfered edge of 17- structure, the second chamfered edge of 18- structure, 19- elastic piece mounting groove, 20- accommodating chamber.
Specific embodiment
The present invention is described further for specific embodiment in reference to the accompanying drawing.
Refering to fig. 1-7, a kind of measurement screw hole position tolerance auxiliary device, including measurement handle 1, measurement handle 1 one end be equipped with
The diameter of its arranged off-centre is less than the thread plug 3 of 2 internal diameter of screw hole to be measured, and measuring the deviator between handle 1 and thread plug 3 is e, screw thread
Side far from measurement 1 axle center of handle on plug 3 is equipped with drift screw thread 4 compatible with screw hole 2 to be measured, and the other side is equipped with for by spiral shell
Line plug 3 pushes up the jacking mechanism to 2 surface of screw hole to be measured, and the axle center of drift screw thread 4 is conllinear with the measurement axle center of handle 1, jacking mechanism
Effect be to hold out against drift screw thread 4 to realize that thread plug 3 screws in the screw thread of screw hole 2 to be measured, after thread plug 3 screws,
The axial line of screw hole 2 to be measured is overlapped with the axial line of drift screw thread 4, can be obtained by the position degree of detection measurement handle 1 to be measured
The position degree of screw hole 2.
In the present embodiment, jacking mechanism includes that wedge shape holds out against first 5, guide plate 6 and wedge shape is held out against first 5 and guide plate
The elastic piece 7 of 6 connections, wedge shape hold out against and are integrally formed structures between first 5 and guide plate 6, elastic piece 7.Elastic piece 7 and guiding
The junction of plate 6 is equipped with the elastic portion 12 that two sides are narrowed, i.e. the thickness of elastic portion 12 plays increase less than the thickness of elastic piece 7
The effect of elasticity.Thread plug 3, which is equipped with, holds out against first 5 compatible wedge grooves 8 with wedge shape, the side that wedge shape holds out against first 5 be equipped with
The lozenges 10 that wedge groove 8 is slidably connected, the other side are equipped with arcwall face 11, and arcwall face 11, can for holding out against 2 surface of screw hole to be measured
To reduce the damage to 2 internal screw thread of screw hole to be measured.When lozenges 10 is moved far from wedge groove 8, arcwall face 11 and drift screw thread 4
The distance between axle center increase, realization holds out against drift screw thread 4 in the screw thread of screw hole 2 to be measured;When lozenges 10 is close to wedge
When shape slot 8 moves, the distance between axle center of arcwall face 11 and drift screw thread 4 reduces, and realizes drift screw thread 4 and screw hole 2 to be measured
Thread separation.The guide groove 9 that handle 1 is equipped with installation guide plate 6 is measured, guide groove 9 extends radially through measurement handle 1, and guide groove 9 prolongs
Thread plug 3 is extended to, is T-type structure between elastic piece 7 and guide plate 6, on the one hand guide plate 6 can be played in guide groove 9 and be led
To effect, position-limiting action on the other hand can be played.Thread plug 3 between wedge groove 8 and guide groove 9 is equipped with installation elastic piece
7 elastic piece mounting groove 19, under original state, elastic piece 7 and wedge shape hold out against first 5 and are located in thread plug 3.
In the present embodiment, measurement handle 1 is interior equipped with spring 13 and blocking 14, and measurement handle 1 is interior equipped with installation spring 13 and stifled
The accommodating chamber 20 of plug 14, the both ends of spring 13 hold out against guide plate 6, blocking 14 respectively, match between blocking 14 and measurement handle 1 for interference
It closes or is threadedly coupled.Measurement 1 periphery of handle is arranged with the guide sleeve 15 of package guide plate 6, is between measurement handle 1 and guide sleeve 15
It is full of cooperation, the position degree of screw hole 2 to be measured can be obtained by measurement guide sleeve 15.
In the present embodiment, thread plug 3 is equipped with drift screw thread 4 is axially spaced at two-part separation trough 16, it is ensured that
When work at drift screw thread 4 at least two with the thread contact of screw hole 2 to be measured.Thread plug 3 is equipped with the first chamfered edge structure 17, the
One chamfered edge structure 17 is located at thread plug 3 and measures the two sides of the line of eccentricity between handle 1, and the first chamfered edge structure 17 can reduce
The sectional dimension of thread plug 3 facilitates thread plug 3 being inserted into screw hole 2 to be measured, abuts against the mistake to 2 surface of screw hole to be measured in thread plug 3
The thread interference of thread plug 3 Yu screw hole 2 to be measured can be reduced in journey.It measures handle 1 and is equipped with the second chamfered edge structure 18, can be convenient
Measurement handle 1 is held to be screwed.The junction for measuring handle 1 and thread plug 3 is equipped with the cylindrical body coaxially arranged with measurement handle 1, circle
Cylinder can play position-limiting action when thread plug 3 screws.
Specific work process of the invention are as follows:
1, thread plug 3 is inserted into screw hole 2 to be measured until guide plate 6 is held out against 2 end face of screw hole to be measured;
2, drift screw thread 4 is close to the screw thread of screw hole 2 to be measured, and screw thread plug 3, during screwing, thread plug 3
It travelling forward, is moved since guide plate 6 is limited by 2 end face of screw hole to be measured, wedge shape holds out against first 5 and is relatively distant from the movement of wedge groove 8,
Under the action of lozenges 10, the distance between axle center of arcwall face 11 and drift screw thread 4 increases, until arcwall face 11 hold out against it is to be measured
The screw thread of screw hole 2, correspondingly, drift screw thread 4 is secured in the screw thread of screw hole 2 to be measured to realize screw thread plug 3;
3, the position degree of screw hole 2 to be measured can be obtained using the position degree of three coordinate machine detection measurement handle 1 or guide sleeve 15;
4, thread plug 3 is unscrewed, thread plug 3 moves backward, and wedge shape holds out against first 5 relatively close wedge shapes under the action of spring 13
Slot 8 moves, and the distance between axle center of arcwall face 11 and drift screw thread 4 is reduced, the screw thread point of drift screw thread 4 and screw hole 2 to be measured
From extracting thread plug 3 out screw hole 2 to be measured and complete measurement work.
Thread plug, which is first inserted into screw hole bottom hole to be measured, in the present invention nearby makes guide plate hold out against end surface of screw hole to be measured, then revolves
Turn thread plug, thread plug and wedge shape hold out against the opposite sliding of head, and under the action of wedge groove, wedge shape holds out against head and holds out against thread plug
Screw hole surface to be measured realizes that thread plug screws, then can effectively be measured by the position degree of cooperation three coordinate machine detection measurement handle
The time of screw hole position tolerance, screw thread plug is short, and measurement efficiency is high, and overall structure of the present invention is simple, and number of parts is few, cost
It is low.
The above is only the preferred embodiment of the present invention, it should be pointed out that for those skilled in the art, is not taking off
Under the premise of from structure of the invention, several modifications and improvements can also be made, these all will not influence the effect that the present invention is implemented
And patent practicability.
Claims (8)
1. a kind of measurement screw hole position tolerance auxiliary device, it is characterised in that: including measuring handle (1), one end of measurement handle (1)
It is separate described on the thread plug (3) equipped with the thread plug (3) for being less than screw hole to be measured (2) internal diameter with the diameter of its arranged off-centre
The side for measuring handle (1) axle center is equipped with the compatible drift screw thread (4) with the screw hole (2) to be measured, and the other side is equipped with for will
The thread plug (3) pushes up the jacking mechanism to screw hole (2) surface to be measured, the axle center of the drift screw thread (4) and the survey
The axle center for measuring handle (1) is conllinear, and the jacking mechanism includes that wedge shape holds out against head (5), guide plate (6) and holds out against the wedge shape
The elastic piece (7) that head (5) is connect with guide plate (6).
2. a kind of measurement screw hole position tolerance auxiliary device according to claim 1, it is characterised in that: the thread plug
(3) it is equipped with and holds out against the compatible wedge groove (8) of head (5) with the wedge shape, the measurement handle (1) is equipped with described in installation and leads
To the guide groove (9) of plate (6), the guide groove (9) extends to the thread plug (3).
3. a kind of measurement screw hole position tolerance auxiliary device according to claim 2, it is characterised in that: the wedge shape holds out against head
(5) side is equipped with the lozenges (10) being slidably connected with the wedge groove (8), and the other side is equipped with arcwall face (11).
4. a kind of measurement screw hole position tolerance auxiliary device according to claim 1, it is characterised in that: the elastic piece (7)
The elastic portion (12) narrowed two sides is equipped with the junction of guide plate (6).
5. a kind of measurement screw hole position tolerance auxiliary device according to claim 1, it is characterised in that: the measurement handle
(1) spring (13) and blocking (14) are equipped in, the both ends of the spring (13) hold out against the guide plate (6), blocking respectively
(14)。
6. a kind of measurement screw hole position tolerance auxiliary device according to claim 1, it is characterised in that: the measurement handle
(1) periphery is arranged with the guide sleeve (15) for wrapping up the guide plate (6), is between the measurement handle (1) and guide sleeve (15)
Interference fit.
7. a kind of measurement screw hole position tolerance auxiliary device according to claim 1, it is characterised in that: the thread plug
(3) it is equipped with the drift screw thread (4) is axially spaced at two-part separation trough (16).
8. a kind of measurement screw hole position tolerance auxiliary device described in -7 any one according to claim 1, it is characterised in that: described
Thread plug (3) be equipped with the first chamfered edge structure (17).
Priority Applications (1)
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CN201910371910.3A CN109990749B (en) | 2019-05-06 | 2019-05-06 | Auxiliary device for measuring screw hole position degree |
Applications Claiming Priority (1)
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CN201910371910.3A CN109990749B (en) | 2019-05-06 | 2019-05-06 | Auxiliary device for measuring screw hole position degree |
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CN109990749A true CN109990749A (en) | 2019-07-09 |
CN109990749B CN109990749B (en) | 2024-02-09 |
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CN201910371910.3A Active CN109990749B (en) | 2019-05-06 | 2019-05-06 | Auxiliary device for measuring screw hole position degree |
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