CN209588935U - It is a kind of measurement open slot bottom to centre distance measuring tool - Google Patents
It is a kind of measurement open slot bottom to centre distance measuring tool Download PDFInfo
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- CN209588935U CN209588935U CN201920169791.9U CN201920169791U CN209588935U CN 209588935 U CN209588935 U CN 209588935U CN 201920169791 U CN201920169791 U CN 201920169791U CN 209588935 U CN209588935 U CN 209588935U
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- locating piece
- block
- measurement
- pedestal
- open slot
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Abstract
The utility model relates to aviation part processing technique fields, and in particular to it is a kind of measurement open slot bottom to centre distance measuring tool.Measurement accuracy is improved to the distance at center in its direct measuring flume bottom, avoids or reduces the measurement that makes open slot bottom with other measurement method bring measurement errors to center apart from more accurate, detection is more efficient.The technical solution of the utility model includes pedestal, base upper surface is installed with bootstrap block and locating piece, bootstrap block and locating piece are respectively arranged at pedestal diagonal position, hole is provided on the pedestal in the left side of the lower guide block of locating piece, the positioning column of T-shape is provided in hole, the lower end edge of locating piece is provided with integrally formed boss；The bottom of bootstrap block is horizontally arranged with sliding slot, hole can be provided with, auxiliary connecting pin is provided in hole along the sliding block that bootstrap block slides laterally, the outboard end upper surface of sliding block by being provided in sliding slot, the upper surface of bootstrap block is provided centrally with housing screw, and housing screw is contacted with the upper surface of sliding block.
Description
Technical field
The utility model type is related to aviation part processing technique field, and in particular to a kind of measurement open slot bottom to center away from
From measuring tool.
Background technique
Aviation Fuel nozzle nut class part is mainly used in aeroengine combustor buring room fuel oil between spin chamber
Connection, the measurement of fuel nozzle part split shed trench bottom to centre distance, currently without directly effective measurement scheme, due to
Its shape is irregular, and positioning, measurement method are complicated, and line segment and the circular arc for forming shape are more, and general measuring method can not be split
The distance at mouth trench bottom to center is directly measured.It therefore, is distance of the measurement open slot bottom to center, by designing newly
Measuring tool determines reasonable part positioning surface and measuring surface, to reach the requirement for measuring such size.
Utility model content
The utility model aim provides a kind of measurement open slot bottom to the measuring tool of centre distance, and direct measuring flume bottom is in
The distance of the heart improves measurement accuracy, avoids or reduces with other measurement method bring measurement errors, makes open slot bottom to center
Measurement apart from more accurate, detect more efficient.
In order to solve the problems existing in the prior art, the technical solution of the utility model is: a kind of measurement open slot bottom is in
The measuring tool of heart distance, including pedestal, it is characterised in that: the base upper surface is installed with the bootstrap block of rectangle and determining for rectangle
Position block, the bootstrap block and locating piece are respectively arranged at the diagonal position of pedestal, the lower guide block of the locating piece
It is provided with hole on the pedestal in left side, the positioning column of T-shape is provided in hole, the lower end edge of the locating piece is provided with one
Molding boss；
The bottom of the bootstrap block is horizontally arranged with sliding slot, be provided in sliding slot can along the sliding block that bootstrap block slides laterally,
The outboard end upper surface of sliding block is provided with hole, and auxiliary connecting pin is provided in hole, and the upper surface of bootstrap block is provided centrally with compression
Screw, housing screw are contacted with the upper surface of sliding block.
The bootstrap block is fixed on measuring tool pedestal by screw one and pin one.
The locating piece is fixed on measuring tool pedestal by screw two and pin two.
The shape of the pedestal is rectangle.
Compared with prior art, as follows the advantages of the utility model:
The utility model positions the inner hole of locating shaft upper end outer circle and tested part by setting locating shaft, and zero
The lower end surface of part is bonded with measuring tool pedestal, and locating shaft upper end outer circle is set as accurate circle, very with the fit clearance of inner bore of part
Small, cooperation precision is high；
The utility model is bonded sliding block right end straight flange positioning surface with tested part left end positioning surface by setting sliding block,
By the small―gap suture precision-fit of sliding block and bootstrap block, guarantee sliding block positioning surface always perpendicular to pedestal, to make sliding block and zero
The fitting of part left end is accurate, realizes part and is angularly accurately positioned；
By setting measurement plate, measurement plate can control flexibly to be pushed and can unload at any time the utility model, is surveyed convenient for measuring tool
Tested part is placed and is taken away during amount, and it is convenient to operate, and can improve piece test efficiency.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model；
Fig. 2 is the A-A cross-sectional view of Fig. 1；
Fig. 3 is slot bottom to centre distance structural schematic diagram (wherein, M is positioning block bottom measuring surface, and N is open slot bottom)；
Fig. 4 is the end measurement plate X instrumentation plan；
Fig. 5 is the end measurement plate D instrumentation plan；
Fig. 6 is the structural schematic diagram of measurement plate；
Description of symbols: 1- measuring tool pedestal, 2- bootstrap block, 3- locating piece, 4- positioning column, 5- sliding block, 6- measurement plate, 7-
Screw two, 8- pin two, 9- screw one, 10- pin one, 11- connecting pin, 12- housing screw, 13- tested part.
Specific embodiment
The design is described in detail with reference to the accompanying drawing:
The present embodiment provides a kind of measuring tools (referring to Fig. 1 and Fig. 2) at measurement open slot bottom to centre distance, including rectangle
Pedestal 1,1 upper surface of pedestal are fixed with the locating piece 3 of the bootstrap block 2 and rectangle of rectangle, and bootstrap block 2 passes through screw one
9 and pin 1 be fixed on measuring tool pedestal 1, locating piece 3 is fixed on measuring tool pedestal 1 by screw 27 and pin 28.
Above-mentioned bootstrap block 2 and locating piece 3 are respectively arranged at the diagonal position of pedestal 1, the lower guide of the locating piece 3
It is provided with hole on the pedestal 1 in the left side of block 2, the locating shaft 4 of T-shape is provided in hole, 4 upper end outer circle of locating shaft is setting circle,
Its outside diameter be less than tested part 13 inner hole 0.1mm (outer circle of locating shaft 4 be less than tested part 13 inner hole, prevent by
The dress of part 13 is surveyed not enter), the lower end edge of the locating piece 3 is provided with integrally formed boss；
The bottom of the bootstrap block 2 is horizontally arranged with sliding slot, and the sliding block that can be slid laterally along bootstrap block 2 is provided in sliding slot
5, the outboard end upper surface of sliding block 5 is provided with hole, and auxiliary connecting pin 11, the upper surface center setting of bootstrap block 2 are provided in hole
There is housing screw 12, housing screw 12 is contacted with the upper surface of sliding block 5.
The measurement method of the utility model measuring tool are as follows:
Step 1: measuring tool pedestal 1 is placed on smooth workbench, tested part 13 is placed on locating shaft 4, makes zero
The cooperation of the outer circle of part inner hole and locating shaft, the lower end surface of part 13 is bonded with pedestal 1；
Step 2: being measured using measurement plate 6, the upper end of measurement plate 6 and the boss at 3 lower end edge of locating piece are matched
It closes, the lower end of measurement plate 6 and the open slot bottom of part 13 cooperate, and hold sliding slider 5 to the left of connecting pin 11, make sliding block 5
Right end positioning surface is far from tested part 13；
Step 3: rotation tested part 13, keeps 13 left end positioning surface of tested part parallel with 5 right end positioning surface of sliding block, holds
Firmly connecting pin 11 pushes to the right sliding block 5, is bonded 5 right end positioning surface of sliding block with 13 left end positioning surface of tested part, and sliding block 5 is by zero
Part is withstood, and tightens housing screw 12, keeps sliding block 5 fixed；
Step 4: with the measurement of the end X of measurement plate 6, (measuring block is that existing structure divides the end X and the end D, and both ends size is different, surveys
Magnitude is respectively up and down tolerance of the open slot bottom to centre distance, and the end X is the small end of measurement plate 6, and the end D is the big of measurement plate 6
End), the end X of measurement plate 6 is put to the right, is bonded the lower end measuring surface of measurement plate 6 with the slot bottom plane of tested part 13, is surveyed
The upper end of template 6 is bonded with 3 lower end measuring surface of locating piece, and the end X of measurement plate 6 can be inserted into the slot bottom of open slot, and (open slot is zero
On part, with reference to the intermediate box of 2 part of attached drawing 13)；
Step 5: secondly being measured with the end D of measurement plate 6, the end D of measurement plate 6 is put towards the right side, makes the lower end of measurement plate 6
Measuring surface is bonded with parts groove baseplane, and the upper end of measurement plate 6 is bonded with 3 lower end measuring surface of locating piece, and the end D of measurement plate 6 is not
The slot bottom of energy insertion opening slot；
Measurement result: the end X of measurement plate 6 can pass through and the end D cannot pass through, then the distance at open slot bottom to center is qualified,
It otherwise is unqualified.
Above-mentioned measurement plate 6 is that existing structure is shown in Fig. 6.
The measuring principle of the utility model is explained: (see Fig. 3)
If open slot bottom to centre distance be fx, slot bottom to 3 lower end measuring surface distance of locating piece is fy, for this example, slot bottom
It is a~b to centre distance dimensional tolerance, then has:
A < fx< b (1)
3 lower end measuring surface of locating piece is fixed value L to centre distance, and the end the X actual size of measurement plate 6 is x, measurement plate 6
The end D actual size be d, enable:
A+d=L (2)
B+x=L (3)
Had by formula (1) (2) (3):
L-d < fx< L-x (4)
Formula (4) subtracts L simultaneously, obtains:
L-d-L < fx- L < L-x-L
It arranges:
- d <-(L-fx) <-x
That is:
X < fy< d
So: as long as it is it is believed that the distance at open slot bottom to center is closed that the measured value of measurement plate 6, which is greater than x and is less than d,
Lattice (see Fig. 4, Fig. 5), i.e., the end X can pass through and the end D cannot pass through, then the distance at open slot bottom to center is qualified, otherwise not conform to
Lattice.
Certainly, the above description is not intended to limit the present invention, and the utility model is also not limited to the example above,
The variations, modifications, additions or substitutions that those skilled in the art are made in the essential scope of the utility model, belong to
In the protection scope of the utility model.
Claims (4)
1. a kind of measuring tool of measurement open slot bottom to centre distance, including pedestal (1), it is characterised in that: on the pedestal (1)
Surface is installed with the bootstrap block (2) of rectangle and the locating piece (3) of rectangle, and the bootstrap block (2) and locating piece (3) are respectively set
Diagonal position in pedestal (1) is provided with hole on the pedestal (1) in the left side of the lower guide block (2) of the locating piece (3),
The positioning column (4) of T-shape is provided in hole, the lower end edge of the locating piece (3) is provided with integrally formed boss；
The bottom of the bootstrap block (2) is horizontally arranged with sliding slot, and being provided in sliding slot can be along the sliding block that bootstrap block (2) slide laterally
(5), the outboard end upper surface of sliding block (5) is provided with hole, and auxiliary connecting pin (11), the upper surface of bootstrap block (2) are provided in hole
It is provided centrally with housing screw (12), housing screw (12) is contacted with the upper surface of sliding block (5).
2. it is according to claim 1 it is a kind of measurement open slot bottom to centre distance measuring tool, it is characterised in that: described draws
Guide block (2) is fixed on measuring tool pedestal (1) by screw one (9) and pin one (10).
3. it is according to claim 1 or 2 it is a kind of measurement open slot bottom to centre distance measuring tool, it is characterised in that: it is described
Locating piece (3) be fixed on measuring tool pedestal (1) by screw two (7) and pin two (8).
4. it is according to claim 3 it is a kind of measurement open slot bottom to centre distance measuring tool, it is characterised in that: the bottom
The shape of seat (1) is rectangle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920169791.9U CN209588935U (en) | 2019-01-31 | 2019-01-31 | It is a kind of measurement open slot bottom to centre distance measuring tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920169791.9U CN209588935U (en) | 2019-01-31 | 2019-01-31 | It is a kind of measurement open slot bottom to centre distance measuring tool |
Publications (1)
| Publication Number | Publication Date |
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| CN209588935U true CN209588935U (en) | 2019-11-05 |
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| CN201920169791.9U Active CN209588935U (en) | 2019-01-31 | 2019-01-31 | It is a kind of measurement open slot bottom to centre distance measuring tool |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109827493A (en) * | 2019-01-31 | 2019-05-31 | 西安西航集团莱特航空制造技术有限公司 | It is a kind of measurement open slot bottom to centre distance measuring tool and measurement method |
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2019
- 2019-01-31 CN CN201920169791.9U patent/CN209588935U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109827493A (en) * | 2019-01-31 | 2019-05-31 | 西安西航集团莱特航空制造技术有限公司 | It is a kind of measurement open slot bottom to centre distance measuring tool and measurement method |
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