Small diameter tube X-ray radiography elliptic projection locator with adjusting knob
Technical field
The invention belongs to small diameter tube technical field of nondestructive testing, refer in particular to the small diameter tube roentgenogram with adjusting knob
Phase elliptic projection locator.
Background technology
At present, in sensitivity of film small diameter tube well known to field of non destructive testing, standard requires the ellipse formed on egative film to open
The maximum spacing of weld seam projection will be in 3mm~10mm about mouth width degree, and in order to reach standard requirement, testing staff will be according to small diameter tube
Offset distance formula calculated, Lo=[F-Do+ Δs h] × b+q/ Do+ Δs h, F-- focal length, Do-- paths pipe outside diameter,
Lo-- eccentricities, Δ h-- weld reinforcements, b-- weld widths, the elliptical opening widths of q--(Between oval image short-axis direction
Away from)If detecting the small diameter tube of different model specification, it will measure and calculate, time when will greatly increase work.
The patent No.:ZL201510656954.2 disclose a kind of small diameter tube X radiography elliptic projection positioning rules and its
A kind of operating method, operating method of small diameter tube X radiographies elliptic projection positioning rule, includes the following steps:
Step 1: the assembling of positioning rule:Balancing point is connected to by fastener on positioning plate, the second right angle is set on positioning plate
Ruler sets the first square on balancing point, and laser designator is set in balancing point front end, and adsorption magnet is set in positioning plate one end,
Complete the installation of positioning rule;
Step 2: the placement of positioning rule:The distance for adjusting the second square horizontal sides and positioning plate plane is small diameter tube to be checked
Radius screws lock-screw, and positioning rule is fixed on by adsorption magnet on tube wall, positioning plate one end is made to abut against weld edge
And make there is scale to be close to tube wall, while make the bottom of the second square horizontal sides and path tube wall tangent on one side, loose nut is adjusted,
Movable balancing point makes the bottom of the first square horizontal sides traverse axis of a weld, while makes balancing point needle point and weld edge distance
In 3mm ~ 10mm, tightening nut completes the placement of positioning rule for control.
Step 3: the placement of X-ray machine X, X-ray machine X is placed in the side that small diameter tube is equipped with positioning rule, focal length measurement, together
When make the window of laser rays perpendicular ray machine that laser designator sends out and by window center, complete the placement of X-ray machine X, on
It states a kind of small diameter tube X radiography elliptic projection positioning rules involved by patent and uses the second square and first due to needing
Square, although qualified egative film can accurately be shot, compare for, two squares has been used to operate respectively,
Make inconvenient.
Invention content
The technical problems to be solved by the invention are present situations for the above-mentioned prior art, and provide simple in structure, operation side
Just orientation is accurate, and can be implemented without the small diameter tube X-ray radiography elliptic projection locator with adjusting knob calculated,
The operating method in small diameter tube X radiography elliptic projections is applied, during Fast Modular is drawn up in orientation X-ray production apparatus radiation field
Heart line and oval opening width after weld seam angulation and photograph, effectively improve working efficiency.
Technical solution is used by the present invention solves above-mentioned technical problem:
Small diameter tube X-ray radiography elliptic projection locator with adjusting knob, including main body, laser designator, laser designation
Device includes preceding laser designator and rear laser designator, and main body is string configuration, and the preceding laser designator is arranged on main body
At front end center, rear laser designator is arranged at body rear center, and main body is laterally formed with long slot bore, and long slot bore center is formed with
Crossbeam is installed, the upper surface for being arranged on main body can be along the opposite slip of long slot bore and the survey of the center line symmetrical setting relative to main body
Measuring jaw, measuring claw is string configuration, and measuring claw is installed with body normal, and the lower surface of main body is provided with and two measuring claws
Two Mobile bases of connection, two Mobile bases are respectively connected with a rack, a rotatable gear are provided between two Mobile bases,
Two racks are meshed respectively with the both sides of gear, and gear lower end is formed with a circle body flange, upper surface and the rack bottom of body flange
Face offsets, and fastening bolt is placed through on gear, and is fixedly connected with installation crossbeam, and the lower end of body flange is formed with lower cylinder, under
Cylinder of holster is equipped with adjusting knob, and adjusting knob coordinates with lower cylinder precision friction.
To optimize above-mentioned technical proposal, the measure taken further includes:
Above-mentioned gear upper end is formed with cylinder, and upper surface and the body lower surface of upper cylinder offset.
The lower surface of above-mentioned main body is located at long slot bore both sides and is formed respectively with the twice rib parallel with long slot bore, two teeth
The convex body being adapted with rib is formed on item.
Lower housing is provided with below above-mentioned main body, the pipe being adapted with body flange is formed with straight up at lower housing center
The lower mounting portion of shape structure, lower mounting portion center are formed with centre bore, and the head of adjusting knob is inserted into centre bore, is set in centre bore
Locking groove is equipped with, the head of adjusting knob is formed with the convex ribs worked in coordination with locking groove or protrusion and makes adjusting knob in centre bore
Interior rotation, and cannot extract, installation crossbeam is formed with the upper installation for the tubular structure being adapted with the fastening bolt straight down
Portion, upper mounting portion inner surface are formed with the internal thread being adapted with the fastening bolt, and fastening bolt places gear and upper mounting portion
It is fixedly connected.
The lower surface of above-mentioned body flange is formed with annular groove, and the corresponding position in lower mounting portion upper surface is formed with annular groove,
Ball is provided in annular groove, upper cylinder upper surface is formed with annular groove, and the corresponding position of body lower surface is formed with annular groove,
Ball is provided in annular groove, after fastening bolt is tightened, what gear can rotate is arranged between lower housing and main body.
Upper shell is provided with above above-mentioned main body, upper shell is formed with the sliding groove being adapted with measuring claw.
Be provided with measuring staff on above-mentioned measuring claw, two measuring claws any one locking device is equipped on measuring claw.
With being formed with the sleeve being adapted with laser designator at body rear center at above-mentioned body front end center.
Hinge has supporting rod at the upper surface center of above-mentioned upper shell, and the supporting rod other end is provided with magnet, supporting rod
For telescopic rod.
The end face center point of two above-mentioned measuring staffs, the laser emission point of preceding laser designator and rear laser designator swash
Light emitting point is in the same plane, the laser emission point institute structure of the laser emission point of preceding laser designator and rear laser designator
Into straight line it is with the straight line that the end face center point of two measuring staffs is formed vertical, magnet end face central point, preceding laser designator
The laser emission point of laser emission point and rear laser designator is in the same plane.
Compared with prior art, the small diameter tube X-ray radiography elliptic projection locator with adjusting knob of the invention, packet
Main body, laser designator are included, laser designator includes preceding laser designator and rear laser designator, and the preceding laser designator is set
It puts at body front end center, rear laser designator is arranged at body rear center, and main body is laterally formed with long slot bore, long slot bore
Center is formed with installation crossbeam, and the upper surface for being arranged on main body can be along the opposite slip of long slot bore and symmetrical relative to the center line of main body
The measuring claw of setting, the lower surface of main body are provided with two Mobile bases being connect with two measuring claws, and two Mobile bases are all connected with
There is a rack, a rotatable gear is provided between two Mobile bases, two racks are meshed respectively with the both sides of gear, tooth
Wheel lower end be formed with a circle body flange, upper surface and the rack bottom surface of body flange offset, and fastening bolt is placed through on gear, and with peace
Dress crossbeam is fixedly connected, and the lower end of body flange is formed with lower cylinder, and lower cylinder of holster is equipped with adjusting knob, adjusting knob and lower circle
Cylinder precision friction coordinates, and locator of the invention is rotated by rotation of adjustment knob, band moving gear, and rack and pinion cooperation passes
It is dynamic, one of measuring claw is slided, another measuring claw can slide simultaneously, facilitate distance between two measuring claws of adjusting, and laser
Indicator is always positioned at two measuring claw centers, and in practical operation, two measuring claws can quickly find out small diameter tube weld seam
Diameter, and the laser point fallen on small diameter tube of rear laser designator transmitting is located on the center line of small diameter tube, it is only necessary to
Rotating body controls the laser point that rear laser designator emits and weld edge distance L in 3mm ~ 10mm, and wherein L's is best
Value is 1/2 weld width, the window of laser rays perpendicular ray machine that preceding laser designator is sent out and passes through window center, is completed
The placement of X-ray machine X, provide it is simple in structure, it is easy to operate, orientation is accurate, and having of being implemented without calculating adjusts rotation
The small diameter tube X-ray radiography elliptic projection locator of button, Fast Modular draw up the center line and weld seam in orientation X-ray production apparatus radiation field
Oval opening width after angulation and photograph, effectively improves working efficiency.
Description of the drawings
Fig. 1 is the vertical view of locator of the present invention;
Fig. 2 is locator decomposition diagram;
Fig. 3 is the bottom view after locator removal lower housing;
Fig. 4 is the vertical view after locator removal upper shell;
Fig. 5 is the sectional view of A-A in Fig. 1;
Fig. 6 is the vertical view that locator is placed on after small diameter tube positioning to be measured;
Fig. 7 is the left view that locator is placed on after small diameter tube positioning to be measured.
Specific embodiment
The embodiment of the present invention is described in further detail below in conjunction with attached drawing.
Fig. 1 to Fig. 7 is the structure diagram of the present invention.
Reference numeral therein is:Main body 1, long slot bore 11, installation crossbeam 12, upper mounting portion 13, sleeve 14, laser designation
Device 2, preceding laser designator 21, rear laser designator 22, measuring claw 3, measuring staff 31, locking device 32, Mobile base 4, rack 41, tooth
Wheel 42, body flange 421, lower cylinder 422, upper cylinder 423, fastening bolt 5, adjusting knob 6, rib 7, lower housing 8, lower peace
Dress portion 81, centre bore 82, locking groove 83, upper shell 9, sliding groove 91, supporting rod 10, magnet 101.
Fig. 1 to Fig. 7 is the structure diagram of the present invention.
As shown in the figure:
Small diameter tube X-ray radiography elliptic projection locator with adjusting knob, including main body 1, laser designator 2, laser refers to
Show that device 2 includes preceding laser designator 21 and rear laser designator 22, main body is string configuration, and the preceding laser designator 21 is set
It puts at 1 front end center of main body, rear laser designator 22 is arranged at 1 back-end central of main body, and main body 1 is laterally formed with long slot bore
11,11 center of long slot bore is formed with installation crossbeam 12, be arranged on main body 1 upper surface can along long slot bore 11 it is opposite slide and relative to
The measuring claw 3 of the center line symmetrical setting of main body 1, the lower surface of main body 1 are provided with two movements being connect with two measuring claws 3
Seat 4, two Mobile bases 4 are respectively connected with a rack 41, and a rotatable gear 42, two teeth are provided between two Mobile bases 4
Both sides of the item 41 respectively with gear 42 are meshed, and 42 lower end of gear is formed with a circle body flange 421, the upper surface of body flange 421 with
41 bottom surface of rack offsets, and fastening bolt 5 is placed through on gear 42, and is fixedly connected with installation crossbeam 12, the lower end of body flange 421
Lower cylinder 422 is formed with, lower cylinder 422 is equipped with adjusting knob 6, and the inner surface of adjusting knob 6 is outer with lower cylinder 422
Surface accurate frictional fit, the outer surface of adjusting knob are formed with lines increase and the frictional force of hand, and the use of adjusting knob uses
When do not need to stir measuring claw, accuracy is ensure that, while by Frictional Slipping, when two measuring claws fix path to be measured
Guan Hou, then rotation of adjustment knob, it may appear that slipping phenomenon is conducive to that gear is protected not lose because dynamics is excessive in this way, surveys
Measuring jaw is string configuration, and measuring claw is installed with body normal, and rack and pinion of the invention is used cooperatively, and slides wherein one
A measuring claw, another measuring claw can slide simultaneously, facilitate distance between two measuring claws of adjusting, and laser designator is always positioned at
Two measuring claw centers, in practical operation, two measuring claws can quickly find out the diameter of small diameter tube weld seam, and rear laser
The laser point fallen on small diameter tube of indicator transmitting is located on the center line of small diameter tube.
In embodiment, 42 upper end of gear is formed with cylinder 423, upper surface and the 1 lower surface phase of main body of upper cylinder 423
It supports, the end of gear, which is respectively formed with cylinder, reduces contact area, increases gear flexibility ratio.
In embodiment, the lower surface of main body 1 is located at 11 both sides of long slot bore and is formed respectively with the twice rib parallel with long slot bore 11
Item 7 is formed with the convex body being adapted with rib 7 on two racks 41, and convex body is slided with rib contacts, reduces frictional force, necessary
When can add in lubricating oil.
In embodiment, 1 lower section of main body is provided with lower housing 8, and lower housing is fixed by screw in main body, in lower housing 8
The lower mounting portion 81 for the tubular structure being adapted with body flange 421 is formed at the heart straight up, during 81 center of lower mounting portion is formed with
Heart hole 82, the head of adjusting knob 6 are inserted into centre bore 82, and locking groove 83, the head of adjusting knob 6 are provided in centre bore 82
It is formed with the convex ribs worked in coordination with locking groove 83 or protrusion and adjusting knob 6 is made to be rotated in centre bore 82, and cannot extract, pacify
Dress crossbeam 12 is formed with the upper mounting portion 13 of the tubular structure being adapted with the fastening bolt 5 straight down, in upper mounting portion 13
Surface is formed with the internal thread being adapted with the fastening bolt 5, and fastening bolt 5, which places gear 42 and fixed with upper mounting portion 13, to be connected
It connects.
In embodiment, the lower surface of body flange 421 is formed with annular groove, and the corresponding position in 81 upper surface of lower mounting portion is formed with
Annular groove is provided with ball in annular groove, and upper 423 upper surface of cylinder is formed with annular groove, the corresponding position in 1 lower surface of main body
Be formed with annular groove, ball be provided in annular groove, after fastening bolt 5 is tightened, what gear 42 can rotate be arranged on lower housing 8 with
Between main body 1, ball can be slided preferably, can add in lubricating oil when necessary.
In embodiment, 1 top of main body is provided with upper shell 9, and upper shell is fixed with main body by screw, and upper shell 9 is formed with
The sliding groove 91 being adapted with measuring claw 3 ensures the accuracy that measuring claw slides.
In embodiment, measuring staff 31 is provided on measuring claw 3, is pivotally connected between measuring staff and measuring claw, measuring claw can be with measuring staff
Centered on rotate, any one is equipped with locking device 32 on measuring claw 3 for two measuring claws 3, and locking device is made of locking nut,
Screw hole is provided on measuring claw, nut coordinates with upper shell edge, and can be locked measuring claw, prevent measuring claw from sliding
It is dynamic.
In embodiment, the set being adapted with laser designator is formed with at 1 back-end central of main body at 1 front end center of main body
Cylinder 14, laser designator may be inserted into sleeve, facilitate the fixation and dismounting of laser designator.
In embodiment, hinge has supporting rod 10 at the upper surface center of upper shell 9, and 10 other end of supporting rod is provided with magnet
101, supporting rod 10 is telescopic rod, main direction rotate it is good after, using supporting rod, make the angle adjusted will not because of shaking and
Other reasons cause angle offset variation, and supporting rod is telescopic rod, are conducive to be adjusted according to the small diameter tube of different tube diameters in this way
The length of supporting rod prevents supporting rod locator caused by length reason from can not use, and magnet adsorption makes support on small diameter tube
It is more stable.
In embodiment, the end face center point of two measuring staffs 31, the laser emission point of preceding laser designator 21 and rear laser refer to
Show that the laser emission point of device 22 is in the same plane, the laser emission point of preceding laser designator 21 and rear laser designator 22
The straight line that laser emission point is formed is vertical with the straight line that the end face center point of two measuring staffs 31 is formed, in 101 end face of magnet
The laser emission point of heart point, the laser emission point of preceding laser designator 21 and rear laser designator 22 is in the same plane.
Application method:The locator of the present invention is rotated by rotation of adjustment knob, band moving gear, and rack and pinion cooperation passes
It is dynamic, one of measuring claw is slided, another measuring claw can slide simultaneously, facilitate distance between two measuring claws of adjusting, and laser
Indicator is always positioned at two measuring claw centers, and in practical operation, two measuring claws can quickly find out small diameter tube weld seam
Diameter, and the laser point fallen on small diameter tube of rear laser designator transmitting is located on the center line of small diameter tube, it is only necessary to
Rotating body controls the laser point that rear laser designator emits and weld edge distance L in 3mm ~ 10mm, and wherein L's is best
Value is 1/2 weld width, the window of laser rays perpendicular ray machine that preceding laser designator is sent out and passes through window center, is completed
The placement of X-ray machine X, provide it is simple in structure, it is easy to operate, orientation is accurate, and having of being implemented without calculating adjusts rotation
The small diameter tube X-ray radiography elliptic projection locator of button, Fast Modular draw up the center line and weld seam in orientation X-ray production apparatus radiation field
Oval opening width after angulation and photograph, effectively improves working efficiency.
Highly preferred embodiment of the present invention has illustrated, and the various change or remodeling made by those of ordinary skill in the art are not
It can depart from the scope of the present invention.