CN108872395A - The ultrasonic examination fixture of shifting fork assembly weld seam - Google Patents
The ultrasonic examination fixture of shifting fork assembly weld seam Download PDFInfo
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- CN108872395A CN108872395A CN201810452791.XA CN201810452791A CN108872395A CN 108872395 A CN108872395 A CN 108872395A CN 201810452791 A CN201810452791 A CN 201810452791A CN 108872395 A CN108872395 A CN 108872395A
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- 238000003466 welding Methods 0.000 claims description 35
- 230000000712 assembly Effects 0.000 claims description 26
- 238000000429 assembly Methods 0.000 claims description 26
- 239000000203 mixture Substances 0.000 claims description 6
- -1 by support base Chemical compound 0.000 claims 1
- 238000001514 detection method Methods 0.000 abstract description 30
- 230000000694 effects Effects 0.000 abstract description 4
- 230000007547 defect Effects 0.000 description 18
- 238000000034 method Methods 0.000 description 9
- 238000010586 diagram Methods 0.000 description 5
- 238000009434 installation Methods 0.000 description 5
- 239000000523 sample Substances 0.000 description 5
- 238000005266 casting Methods 0.000 description 3
- 230000002950 deficient Effects 0.000 description 3
- 238000007689 inspection Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 229910052751 metal Inorganic materials 0.000 description 3
- 230000035515 penetration Effects 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000011295 pitch Substances 0.000 description 2
- 230000000644 propagated effect Effects 0.000 description 2
- 230000003014 reinforcing effect Effects 0.000 description 2
- 239000002893 slag Substances 0.000 description 2
- 235000019687 Lamb Nutrition 0.000 description 1
- 208000037656 Respiratory Sounds Diseases 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000005284 excitation Effects 0.000 description 1
- 230000004992 fission Effects 0.000 description 1
- 238000005242 forging Methods 0.000 description 1
- 230000004927 fusion Effects 0.000 description 1
- 230000004807 localization Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 238000012797 qualification Methods 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 238000002604 ultrasonography Methods 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N29/00—Investigating or analysing materials by the use of ultrasonic, sonic or infrasonic waves; Visualisation of the interior of objects by transmitting ultrasonic or sonic waves through the object
- G01N29/04—Analysing solids
- G01N29/048—Marking the faulty objects
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N29/00—Investigating or analysing materials by the use of ultrasonic, sonic or infrasonic waves; Visualisation of the interior of objects by transmitting ultrasonic or sonic waves through the object
- G01N29/22—Details, e.g. general constructional or apparatus details
- G01N29/223—Supports, positioning or alignment in fixed situation
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2291/00—Indexing codes associated with group G01N29/00
- G01N2291/26—Scanned objects
- G01N2291/267—Welds
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- Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)
Abstract
The present invention relates to the detection fixture instrument fields of shifting fork assembly, and in particular to the ultrasonic examination fixture of shifting fork assembly weld seam, including pedestal, attitude reference device and locking positioning mechanism, at least provided with a fixed pin on pedestal；Attitude reference device is mainly made of orientation block and orientation screw rod；The locking positioning mechanism being movably connected on pedestal is mainly made of support base, support blocks, the guide upright post being fixed in support blocks and master connecting-rod, slave connecting rod, hand pressure handle and mandril, the up and down motion of mandril is adjusted by moving hand pressure handle up and down, up movement holds out against shifting fork assembly, unclamps down, it first uses attitude reference device to orient shifting fork assembly when positioning using this fixture, recycles locking positioning mechanism Quick-clamped；The shifting fork assembly of multiple and different types can be once positioned, quick, batch detection high-precision shifting fork assembly has positioning fast, and versatility is high, and each angle for adjusting orientation fixture can be applicable in the technical effect of the shifting fork assembly of more specification same types.
Description
Technical field
The present invention relates to the detection fixture instrument fields of shifting fork assembly, and in particular to the ultrasonic examination of shifting fork assembly weld seam
Fixture.
Background technique
Ultrasonic examination is that the depths of metal material can be penetrated using ultrasound, and when entering another section by a section,
The characteristics of interface edge reflects checks a kind of method of part defect, when ultrasonic beam is passed to from piece surface by popping one's head in
Metal inside just occurs back wave when encountering defect and part bottom surface respectively, impulse waveform is formed on fluorescent screen, according to these
Impulse waveform judges defective locations and size.
There are many wave mode when ultrasonic wave is propagated in the medium, most common in inspection is longitudinal wave, shear wave, surface wave and plate
Wave.With the folder in the presence of the detectable cast metals of longitudinal wave, blank, cut deal, large forgings and the fairly simple product of shape
The defects of sundries, crack, the draw, white point, layering；With in the detectable tubing of shear wave circumferential and axial crack, scuffing, in weld seam
Stomata, slag inclusion, crack, it is lack of penetration the defects of；With the surface defect on the casting of the detectable simple shape of surface wave；Use Lamb wave
The defects of detectable thin plate.
Ultrasonic wave is a kind of mechanical wave, there is very high frequency, and frequency ratio is more than 20 kHz, and energy is far longer than vibration
The energy of identical audible sound wave has very strong penetration capacity.For the ultrasonic wave of flaw detection, frequency is 25 megahertzs of 0.4-
Hereby, wherein with the most use is 5 megahertzs of 1-, due to can rapid and convenient, it is not damaged, accurately carry out inside workpiece it is a variety of
Detection, the positioning of defect, and ultrasonic examination has detection range big, failure detector is small in size, and it is light-weight, it is easy to carry to arrive
The features such as scene flaw detection, detection speed is fast, and only consumption couplant and abrasion are popped one's head in flaw detection, and total testing cost is lower,
So it using more and more extensive.
Using ultrasonic examination, mainly there are through transmission technique flaw detection and bounce technique flaw detection two ways.Through transmission technique flaw detection uses two
A probe, one is used to emit ultrasonic wave, and one is used to receive ultrasonic wave.When detection, two probes are split in workpiece two sides, root
The variation of energy after workpiece is penetrated according to ultrasonic wave to differentiate inside workpiece quality.The high frequency that bounce technique flaw detection radio-frequency generator generates
Pulse excitation signal acts on probe, and generated wave direction inside workpiece is propagated, such as inside workpiece existing defects, one of wave
It is allocated as being reflected back for defect waves, the rest part of transmitted wave also will reflect back into as bottom wave.According to transmitted wave, defect
Wave, bottom wave can determine defective locations relative to the position of timebase；It can determine the size of defect according to the amplitude of defect waves；Root
According to defect waves shape can analyzing defect property；Such as inside workpiece zero defect, then only transmitted wave and bottom wave.
Ultrasonic examination can detecte the defects of stomata, slag inclusion, lack of penetration, incomplete fusion, crackle of metal inside.
Shift fork used in present automobile is divided into one or two grades of shifting fork assemblies, high speed selector fork assembly, three or four gear shifts
Shifting fork assembly and reverse speed fork assembly, high speed selector fork assembly and three fourth gear selector fork assemblies are dialled by half arc
It pitches body and shift fork axis body is constituted, reverse speed fork assembly and one or two grades of shifting fork assemblies are by main shift fork arm, shift fork axle and secondary shift fork arm group
At the welding surface of the two pair shift fork arm is respectively placed in the front and rear sides of main shift fork arm relative to the axial position of shift fork axle, and pair is dialled
Yoke favours main shift fork arm certain angle welding, the secondary shift fork arm of high speed selector fork assembly and three fourth gear selector fork assemblies
It is different, of different sizes to weld tilt angle.
The technique of existing production shift fork is casting, but mass production is pre- through calculating, by the shift fork arm and shift fork of shift fork
Axle casting causes the shift fork arm of the relatively larger than seperated welding of integral structure cost and shift fork axle, long-term production to get off, group of fission welding
Fork cost substantially reduces, and since shift fork is very accurate auto parts, required precision is high, thus the shift fork arm of seperated welding and
Shift fork axle weld seam is detected, and the weld of secondary shift fork arm and shift fork axle also needs to detect, but existing artificial detection
Internal welding defect or welding damage cannot be detected, and using being easy missing inspection in the form of sampling observation, thus when detection needs by
Supersonic detector detects shift fork, but do not have when detection can to the fixture that shift fork is quickly positioned, so as to cause
Detection slows, and at the weld seam more than one of one or two grades of shifting fork assemblies and reverse speed fork assembly, needs a detection and localization
Many places weld seam, no stationary fixture, which does not only result in, to slow, and also results in detection and situations such as error or missing inspection occurs, directly will be inferior
The shifting fork assembly of product flows into assembly line, influences the quality of product.
Summary of the invention
In view of the technical problems existing in the prior art, the present invention provides a kind of high-efficient, artificial works of liberation, can be real
The ultrasonic examination fixture of the shifting fork assembly weld seam now continuously detected has and realizes mechanical intelligent, and security performance is high, detection is fast
Fast technical effect is spent, can be effectively controlled the qualification rate of product.
To realize the above-mentioned technical purpose, the technical solution adopted by the present invention is as follows：
The ultrasonic examination fixture of shifting fork assembly weld seam, wherein shifting fork assembly include reverse speed fork assembly, one or two grades of shifting fork assemblies,
High speed selector fork assembly and three fourth gear selector fork assemblies, wherein reverse speed fork assembly and one or two grades of shifting fork assemblies are by main shift fork
Arm, shift fork axle and secondary shift fork arm composition, the main shift fork arm and secondary shift fork arm are welded in shift fork axle, the high speed selector fork
Assembly and three fourth gear selector fork assemblies are made of shift fork body and shift fork axis body, and the shift fork body is welded on shift fork axis body, folder
Tool includes pedestal, attitude reference device and locking positioning mechanism, at least provided with a fixed shift fork axle or shift fork axis body on the pedestal
Fixed pin；The attitude reference device being movably connected on pedestal is mainly made of orientation block and orientation screw rod；It is movably connected in pedestal
On locking positioning mechanism mainly by support base, support blocks, the guide upright post being fixed in support blocks and master connecting-rod,
Slave connecting rod, hand pressure handle and mandril composition, the support base are fixed on the base, and support blocks are removably attachable to support base
On, the upper end of support blocks is fixed with guide upright post, lower end is hinged with master connecting-rod, and the both ends of master connecting-rod, which are respectively articulated with, sets about
The body of rod of wherein one end of pressure handle and slave connecting rod, the end of the articulated mandril of the other end of slave connecting rod, mandril passes through guide upright post
It withstands on the shifting fork assembly of upper end；
When supersonic detector detects the welding surface of secondary shift fork arm and shift fork axle, shift fork axle or shift fork axis body are covered in fixed pin
On, secondary shift fork arm is horizontal positioned, and orientation screw rod from bottom to top withstands secondary shift fork arm from vertical direction, and the two keeps vertical configuration
State, the inclination of locking positioning mechanism are fixed on the base, and the upper end of mandril is withstood on main shift fork arm；
When supersonic detector detects the welding surface of main shift fork arm and shift fork axle, shift fork body and shift fork axis body, shift fork axle or dial
Fork shaft body covers on fixed pin, U-shaped main shift fork arm and shift fork body it is opening up, orientation screw rod inclination be fixed on the base and on
Main shift fork arm or shift fork body are withstood in end, and locking positioning mechanism is fixed on the base vertically, moves hand pressure handle pushing rod vertical
Direction moves to clamp shift fork.
Using the ultrasonic examination fixture of the shifting fork assembly weld seam of this design, can quick positioning shift fork assembly, using super
Sonic analyzer quickly detects the welding defect on shifting fork assembly, detection shift fork axle and main shift fork arm, shift fork body and shift fork axis body
Weld when, by the opening up surface of main shift fork arm and shift fork body, detected face is allowed to lay flat, at this time with inclination installation
Attitude reference device and vertically-mounted locking positioning mechanism, which position shifting fork assembly, to be clamped, and the scanning probe welding surface of defectoscope is utilized
When judging whether that welding is qualified, then detecting the welding surface of secondary shift fork arm and shift fork axle, secondary shift fork arm is laid flat, main shift fork arm and shift fork
The opening of axis tilts and towards the oblique upper of locking positioning mechanism side, and the welding surface of secondary shift fork arm and shift fork axle is laid flat, at this time
Secondary shift fork arm is from bottom to top withstood with vertically-mounted attitude reference device, the locking positioning mechanism being obliquely installed withstands main shift fork arm,
It prevents shifting fork assembly from turning right rotation, this welding surface of the scanning probe of defectoscope is recycled to judge whether that welding is qualified.The fixture
In traditional artificial judgment method, the shifting fork assembly of multiple and different types can be once positioned, quick, batch detection high-precision
Shifting fork assembly eliminates time defective goods, ensure that the quality of installation shifting fork assembly mechanism, and fixture positioning is fast, versatility is high, often
The secondary angle for adjusting orientation fixture can be applicable in the shifting fork assembly of more specification same types, have mechanical automation, security performance
High, the fireballing technical effect of detection.
It further limits, for the more stable shifting fork assembly that withstands, the top of the mandril is fixed equipped with arc-shaped shift fork
Position block.
It further limits, the fixed pin is equipped with positioning convex platform, limits position of the shift fork axle sleeve on fixed pin
Position facilitates orientation screw rod that can withstand on main shift fork arm, secondary shift fork arm or shift fork body.
It further limits, the fixed pin is removably attachable on pedestal by connecting bolt, is convenient for changing different straight
The fixed pin of diameter adapts it to clamp shift fork axle of different specifications and sizes or shift fork axis body.
It further limits, the orientation block is removably attachable on pedestal by adjusting bolt.
It further limits, the vertical plate that the pedestal is mainly fixed on bottom plate by bottom plate and vertically forms, the vertical plate
Two sides are fixed with several groups attitude reference device and locking positioning mechanism, wherein the attitude reference device for favouring pedestal setting and connection vertically
Locking positioning mechanism on pedestal is one group of wherein side that vertical plate is arranged in, and favours the locking positioning mechanism of pedestal connection
Attitude reference device with vertical direction setting is one group of other side that vertical plate is arranged in.Two kinds are arranged simultaneously not in the two sides of vertical plate
With positioning fixture is clamped, so that more compact structure, supersonic detector of every debugging can detecte more shifting fork assemblies.
It further limiting, the vertical plate that the pedestal is mainly fixed on bottom plate by bottom plate and vertically forms, and the two is L-shaped,
The locking positioning mechanism that several groups favour the attitude reference device of pedestal setting and are connected on pedestal vertically is fixed on vertical plate,
Or it is fixed with several groups on vertical plate and favours the locking positioning mechanism of pedestal connection and the attitude reference device of vertical direction setting.
It further limits, the attitude reference device of the vertical plate two sides and locking positioning mechanism are respectively four groups, and the company of mutually staggering
It connects on pedestal, mutually staggers and be easy for installation fixed pin.
Detailed description of the invention
Fig. 1 is the schematic perspective view of reverse speed fork assembly；
Fig. 2 is the schematic perspective view of high speed selector fork assembly and three fourth gear selector fork assemblies；
Fig. 3 is the schematic perspective view of one or two grades of shifting fork assemblies；
Fig. 4 is that reverse speed fork assembly and three fourth gear selector fork assemblies are located in and detect the stereochemical structure of welding surface A on fixture and show
It is intended to；
Fig. 5 is that reverse speed fork assembly and three fourth gear selector fork assemblies are located in and detect the stereochemical structure of welding surface B on fixture and show
It is intended to；
Fig. 6 is that high speed selector fork assembly and three fourth gear selector fork assemblies are located in the three-dimensional knot that welding surface A is detected on fixture
Structure schematic diagram；
Fig. 7 is the sectional perspective for tilting the attitude reference device being connected on pedestal and the locking positioning mechanism being connected on pedestal vertically
Structural schematic diagram；
Fig. 8 is the attitude reference device being connected on pedestal vertically and inclination is connected to the sectional perspective knot that pedestal locking stops positioning mechanism
Structure schematic diagram；
Fig. 9 is the attitude reference device being connected on pedestal vertically and inclination is connected to the local main view knot that pedestal locking stops positioning mechanism
Structure schematic diagram；
Figure 10 is the part master for tilting the attitude reference device being connected on pedestal and the locking positioning mechanism being connected on pedestal vertically
Depending on structural schematic diagram.
Specific embodiment
In order to which those skilled in the art may be better understood, with reference to the accompanying drawings and examples to the technology of the present invention
Scheme further illustrates：
Embodiment one：As shown in Figure 1, Figure 2, Fig. 3, Fig. 4, Fig. 5, Fig. 6, Fig. 7, Fig. 8, Fig. 9, shifting fork assembly weld seam shown in Fig. 10 it is super
Sonic flaw detection fixture, wherein shifting fork assembly includes 1,1 grade of shifting fork assembly 2 of reverse speed fork assembly, high speed selector fork assembly 3
With three fourth gear selector fork assemblies（High speed selector fork assembly 3 is as the shape of three fourth gear selector fork assemblies, and size is not
Together, such as Fig. 2）, wherein reverse speed fork assembly 1 and one or two grade shifting fork assembly 2 is by main shift fork arm 20, shift fork axle 21 and secondary shift fork arm 23
Composition, the main shift fork arm 20 and secondary shift fork arm 23 are welded in shift fork axle 21, the high speed selector fork assembly 3 and three fourth gear
Selector fork assembly is made of shift fork body 30 and shift fork axis body 31, and the shift fork body 30 is welded on shift fork axis body 31, fixture packet
Include pedestal 4, the attitude reference device being movably connected on pedestal 45 and the locking positioning mechanism 6 being movably connected on pedestal 4, the bottom
At least provided with a fixed shift fork axle 21 or the fixed pin 41 of shift fork axis body 31 on seat 4；The attitude reference device 5 is mainly by orientation block
50 form with orientation screw rod 51；The locking positioning mechanism 6 mainly by support base 60, support blocks 61, be fixed on support blocks
Guide upright post 62 and master connecting-rod 63, slave connecting rod 64, hand pressure handle 65 and mandril 66 on 61 form, and the support base 60 is fixed
On pedestal 4, support blocks 61 are removably attachable on support base 60, and the upper end of support blocks 61 is fixed with guide upright post
62, lower end is hinged with master connecting-rod 63, and the both ends of master connecting-rod 63 are respectively articulated with wherein one end of hand pressure handle 65 and slave connecting rod 64,
The end of the articulated mandril 66 of the other end of slave connecting rod 64, the shift fork that the body of rod of mandril 66 withstands on upper end across guide upright post 62 are total
Cheng Shang.When withstanding shifting fork assembly using the clamping of locking positioning mechanism 6, first up moves hand pressure handle 65 and drive slave connecting rod 64
It is rotated around support blocks 61, then master connecting-rod 63, which is driven, up moves, and finally mandril 66 is driven to move up and withstand needs
The shifting fork assembly of positioning, because the main shift fork arm 20 of shifting fork assembly either shift fork body 30 is the U-shaped of chamfer, in order to which stress is equal
The uniform lower bottom part that the main shift fork arm 20 either chamfer face of shift fork body 30 no matter can be held out against from that orientation, by mandril 66
Top arc-shaped shift fork locating piece 67 is set again, can withstand shifting fork assembly without slide, it is tight that hand pressure handle, which up moves,
Gu pushing to unclamp.
The fixed pin 41 is equipped with positioning convex platform 41a.
The fixed pin 41 is removably attachable on pedestal 4 by connecting bolt.
The orientation block 50 is removably attachable on pedestal 4 by adjusting bolt.
The vertical plate 43 that the pedestal 4 is mainly fixed on bottom plate 42 by bottom plate 42 and vertically forms, and the two of the vertical plate 43
Side is fixed with four groups of attitude reference devices 5 and locking positioning mechanism 6, wherein favouring the attitude reference device 5 of the setting of vertical plate 43 and connecting vertically
Connecing the locking positioning mechanism 6 on pedestal 4 is one group of wherein side that vertical plate 43 is arranged in；It is dialled when supersonic detector detection is main
When the welding surface A of yoke 20 and shift fork axle 21, shift fork body 30 and shift fork axis body 31, shift fork axle 21 or 31 sets of shift fork axis body are in fixation
On pin 41, U-shaped main shift fork arm 20 and shift fork body 30 it is opening up, the orientation inclination of screw rod 51 is fixed on vertical plate 43 and upper end is pushed up
Firmly main shift fork arm 20 or shift fork body 30, orientation screw rod 51 are 31 ° relative to the mounting inclination angle degree α of vertical direction（Such as Fig. 9）,
Locking positioning mechanism 6 is fixed on vertically on pedestal 4, and it is total to clamp shift fork in vertical direction movement to move 65 pushing rod 66 of hand pressure handle
At.When needing to fix the shifting fork assembly of other models, twisting orientation block 50 is mounted on the position on pedestal 4, adjustment orientation spiral shell
The ejection angle of bar 51.
The opposition of vertical plate 43 two sides fixed every group of attitude reference device 5 and locking positioning mechanism 6 mutually stagger connection.
Supersonic detector is divided into two kinds of detection welding surfaces when detecting：
Detect the first welding surface A：For 2 one-tenth total for back fork assembly 1 and one or two grade shift fork, main shift fork arm 20 is being detected
When with the welding surface A of shift fork axle 21, the locking that is connected on pedestal 4 using the attitude reference device 5 for favouring the setting of pedestal 4 and vertically
The positioning clamping mode that positioning mechanism 6 is one group（Such as Fig. 4 and Fig. 7）, installation of the screw rod 51 relative to vertical direction is oriented at this time
Inclination angle alpha is 31 °.For high speed selector fork assembly 3 and three fourth gear selector fork assemblies（Such as Fig. 6）, dialled in detection
It is same to use the attitude reference device 5 for favouring the setting of pedestal 4 and be connected to vertically when the welding surface A of fork body 30 and shift fork axis body 31
The positioning clamping mode that locking positioning mechanism 6 on pedestal 4 is one group orients installation of the screw rod 51 relative to vertical direction at this time
Inclination angle alpha is 31 °.
Detect second of welding surface B：The pedestal 4 is mainly fixed on 43 groups of vertical plate on bottom plate 42 by bottom plate 42 and vertically
At the two sides of the vertical plate 43 are fixed with four groups of attitude reference devices 5 and locking positioning mechanism 6, wherein favouring the lock of the connection of pedestal 4
Only the attitude reference device 5 of positioning mechanism 6 and vertical direction setting is one group of other side that vertical plate 43 is arranged in（Such as Fig. 5, Fig. 8）；
When supersonic detector detects secondary shift fork arm 23 and the welding surface B of shift fork axle 21, that is, detect reverse speed fork assembly 1 and one or two grade
Secondary 23 weld of shift fork arm of shifting fork assembly 2,21 sets of shift fork axle on fixed pin 41, secondary shift fork arm 23 is horizontal positioned, orients spiral shell
Bar 51 from bottom to top withstands secondary shift fork arm 23 from vertical direction, and the two keeps plumbness, and the inclination of locking positioning mechanism 6 is fixed
On pedestal 4, the direction that the inclination of mandril 66 of locking positioning mechanism 6 is stretched out is 33 ° relative to the angle beta of vertical direction（Such as figure
10）, the upper end of mandril 66 withstands on the lower bottom part of main shift fork arm 20, cooperation attitude reference device 5 clamping shifting fork assembly.
Embodiment two：As shown in Figure 1, Figure 2, the ultrasonic examination of Fig. 3, Fig. 4, Fig. 6, Fig. 7, shifting fork assembly weld seam shown in Fig. 10
Fixture, wherein shifting fork assembly includes 1,1 grade of shifting fork assembly 2 of reverse speed fork assembly, high speed selector fork assembly 3 and three fourth gear
Selector fork assembly（High speed selector fork assembly 3 is of different sizes as the shape of three fourth gear selector fork assemblies, such as Fig. 2）,
Wherein reverse speed fork assembly 1 and one or two grade shifting fork assembly 2 is made of main shift fork arm 20, shift fork axle 21 and secondary shift fork arm 23, described
Main shift fork arm 20 and secondary shift fork arm 23 are welded in shift fork axle 21, the high speed selector fork assembly 3 and three fourth gear selector forks
Assembly is made of shift fork body 30 and shift fork axis body 31, and the shift fork body 30 is welded on shift fork axis body 31, fixture include pedestal 4,
The attitude reference device 5 being movably connected on pedestal 4 and the locking positioning mechanism 6 being movably connected on pedestal 4, the pedestal 4 up to
It is equipped with the fixed pin 41 of a fixed shift fork axle 21 or shift fork axis body 31 less；The attitude reference device 5 mainly by orientation block 50 and determines
It is formed to screw rod 51；The locking positioning mechanism 6 mainly by support base 60, support blocks 61, be fixed in support blocks 61
Guide upright post 62 and master connecting-rod 63, slave connecting rod 64, hand pressure handle 65 and mandril 66 form, and the support base 60 is fixed on pedestal 4
On, support blocks 61 are removably attachable on support base 60, and the upper end of support blocks 61 is fixed with guide upright post 62, lower end
Portion is hinged with master connecting-rod 63, and the both ends of master connecting-rod 63 are respectively articulated with wherein one end of hand pressure handle 65 and slave connecting rod 64, slave connecting rod
The end of the articulated mandril 66 of 64 other end, the body of rod of mandril 66 pass through guide upright post 62 and withstand on the shifting fork assembly of upper end.
The top of the mandril 66 is equipped with arc-shaped shift fork locating piece 67.
The fixed pin 41 is equipped with positioning convex platform 41a, for one or two grades of shifting fork assemblies 2 and reverse speed fork assembly 1, the two
Secondary shift fork arm 23 be welded in the shift fork axle 21 of main 20 lower left side of shift fork arm, need to utilize after 41 positioning shift fork axis 21 of fixed pin
Boss 41a makes to keep spacing between shift fork axle 21 and vertical plate 43 to position, and orientation screw rod 51 is also made to be supported on main shift fork arm 20
On, this boss 41a is fixed after the position on fixed pin 41 ensure that shift fork axle 21 or 31 sets of shift fork axis body on fixed pin 41
It can be withstood on main shift fork arm 20, secondary shift fork arm 23 or shift fork body 30 to screw rod 51.
The fixed pin 41 is removably attachable on pedestal 4 by connecting bolt.
The orientation block 50 is removably attachable on pedestal 4 by adjusting bolt.
The vertical plate 43 that the pedestal 4 is mainly fixed on bottom plate 42 by bottom plate 42 and vertically forms, and the two is L-shaped, and sets
There is reinforcing rib, four groups are fixed on vertical plate 43 and favours the attitude reference device 5 of the setting of pedestal 4 and is connected on pedestal 4 vertically
Locking positioning mechanism 6.
Supersonic detector is divided into two kinds of detection welding surfaces when detecting：
Detect the first welding surface A：When supersonic detector detects main shift fork arm 20 and shift fork axle 21, shift fork body 30 and shift fork axle
When the welding surface A of body 31, shift fork axle 21 or 31 sets of shift fork axis body on fixed pin 41, U-shaped main shift fork arm 20 and shift fork body 30
Opening up, the orientation inclination of screw rod 51 is fixed on pedestal 4 and main shift fork arm 20 or shift fork body 30, locking positioning are withstood in upper end
6 structure of machine is fixed on vertically on pedestal 4, is moved hand pressure handle 65 pushing rod 66 in vertical direction movement and is clamped shifting fork assembly；At this time
It is 31 ° that screw rod 51, which is oriented, relative to the mounting inclination angle degree α of vertical direction.
For 2 one-tenth total for back fork assembly 1 and one or two grade shift fork, in the weldering for detecting main shift fork arm 20 and shift fork axle 21
When junction A, use the attitude reference device for favouring pedestal setting and the locking positioning mechanism being connected on pedestal vertically for one group
Positioning clamping mode（Such as Fig. 4, Fig. 7）；For high speed selector fork assembly 3 and three fourth gear selector fork assemblies, detecting
It is same using the attitude reference device 5 for favouring the setting of pedestal 4 and vertical connection when the welding surface A of shift fork body 30 and shift fork axis body 31
The positioning clamping mode that locking positioning mechanism 6 on pedestal 4 is one group（Such as Fig. 6, Fig. 7）, at this time orient screw rod 51 relative to
The mounting inclination angle degree α of vertical direction is 31 °.
Embodiment three：As shown in Figure 1, Figure 2, the ultrasonic examination fixture of Fig. 3, Fig. 5, Fig. 8, shifting fork assembly weld seam shown in Fig. 9,
Wherein shifting fork assembly includes that 1,1 grade of shifting fork assembly 2 of reverse speed fork assembly, high speed selector fork assembly 3 and three or four gear shifts are dialled
Pitch assembly（High speed selector fork assembly 3 is of different sizes as the shape of three fourth gear selector fork assemblies, such as Fig. 2）, wherein falling
Shelves shifting fork assembly 1 and one or two grade shifting fork assembly 2 is made of main shift fork arm 20, shift fork axle 21 and secondary shift fork arm 23, the main shift fork
Arm 20 and secondary shift fork arm 23 are welded in shift fork axle 21, the high speed selector fork assembly 3 and three fourth gear selector fork assemblies by
Shift fork body 30 and shift fork axis body 31 form, and the shift fork body 30 is welded on shift fork axis body 31, and fixture includes pedestal 4, activity company
Connect on pedestal 4 attitude reference device 5 and the locking positioning mechanism 6 that is movably connected on pedestal 4, on the pedestal 4 at least provided with
The fixed pin 41 of one fixed shift fork axle 21 or shift fork axis body 31；The attitude reference device 5 is mainly by orientation block 50 and orientation screw rod
51 compositions；The locking positioning mechanism 6 is mainly stood by support base 60, support blocks 61, the guiding being fixed in support blocks 61
Column 62 and master connecting-rod 63, slave connecting rod 64, hand pressure handle 65 and mandril 66 form, and the support base 60 is fixed on pedestal 4, prop up
Bracer body 61 is removably attachable on support base 60, and the upper end of support blocks 61 is fixed with guide upright post 62, lower end hinge
It is connected to master connecting-rod 63, the both ends of master connecting-rod 63 are respectively articulated with wherein one end of hand pressure handle 65 and slave connecting rod 64, slave connecting rod 64
The end of the articulated mandril 66 of the other end, the body of rod of mandril 66 pass through guide upright post 62 and withstand on the shifting fork assembly of upper end.
The top of the mandril 66 is equipped with arc-shaped shift fork locating piece 67.
The fixed pin 41 is equipped with positioning convex platform 41a.
The fixed pin 41 is removably attachable on pedestal 4 by connecting bolt.
The orientation block 50 is removably attachable on pedestal 4 by adjusting bolt.
The vertical plate 43 that the pedestal 4 is mainly fixed on bottom plate 42 by bottom plate 42 and vertically forms, and the two is L-shaped, and sets
Have reinforcing rib, be fixed on vertical plate 43 four groups favour pedestal 4 connection locking positioning mechanism 6 and vertical direction setting determine
To mechanism 5.
Supersonic detector is divided into two kinds of detection welding surfaces when detecting：
Detect second of welding surface B：When supersonic detector detects secondary shift fork arm 23 and the welding surface B of shift fork axle 21, shift fork
21 sets of axis on fixed pin 41, secondary shift fork arm 23 is horizontal positioned, and orientation screw rod 51 from bottom to top withstands secondary shift fork from vertical direction
Arm 23, and the two keeps plumbness, the inclination of locking positioning mechanism 6 is fixed on pedestal 4, and the upper end of mandril 66 withstands on main shift fork
On arm 20；The direction that the inclination of mandril 66 of locking positioning mechanism 6 is stretched out at this time is 33 ° relative to the angle beta of vertical direction（Such as figure
5, Fig. 8, Fig. 9）.
The ultrasonic examination fixture of shifting fork assembly weld seam provided by the invention is described in detail above, is embodied
The explanation of example is merely used to help understand method and its core concept of the invention.It should be pointed out that for the general of the art
, without departing from the principle of the present invention, can be with several improvements and modifications are made to the present invention for logical technical staff, this
A little improvement and modification are also fallen within the protection scope of the claims of the present invention.
Claims (8)
1. the ultrasonic examination fixture of shifting fork assembly weld seam, wherein shifting fork assembly includes that reverse speed fork assembly, one or two grades of shift forks are total
At, high speed selector fork assembly and three fourth gear selector fork assemblies, wherein reverse speed fork assembly and one or two grades of shifting fork assemblies are by leading
Shift fork arm, shift fork axle and secondary shift fork arm composition, the main shift fork arm and secondary shift fork arm are welded in shift fork axle, the high speed gear shift
Shifting fork assembly and three fourth gear selector fork assemblies are made of shift fork body and shift fork axis body, and the shift fork body is welded on shift fork axis body
On, it is characterised in that：
Fixture includes pedestal, at least provided with a fixed shift fork axle or the fixed pin of shift fork axis body on pedestal；
At least one is movably connected in the attitude reference device on pedestal, and attitude reference device is mainly made of orientation block and orientation screw rod；
At least one is movably connected in the locking positioning mechanism on pedestal, mainly by support base, support blocks, be fixed on supporting block
Guide upright post and master connecting-rod, slave connecting rod, hand pressure handle and mandril composition, the support base on body are fixed on the base, and are supported
Block is removably attachable on support base, and the upper end of support blocks is fixed with guide upright post, lower end is hinged with master connecting-rod,
The both ends of master connecting-rod are respectively articulated with wherein one end of hand pressure handle and slave connecting rod, the end of the articulated mandril of the other end of slave connecting rod
Portion, the body of rod of mandril pass through guide upright post and withstand on the shifting fork assembly of upper end；
When supersonic detector detects the welding surface of secondary shift fork arm and shift fork axle, shift fork axle or shift fork axis body are covered in fixed pin
On, secondary shift fork arm is horizontal positioned, and orientation screw rod from bottom to top withstands secondary shift fork arm from vertical direction, and the two keeps vertical configuration
State, the inclination of locking positioning mechanism are fixed on the base, and the upper end of mandril is withstood on main shift fork arm；
When supersonic detector detects the welding surface of main shift fork arm and shift fork axle, shift fork body and shift fork axis body, shift fork axle or dial
Fork shaft body covers on fixed pin, U-shaped main shift fork arm and shift fork body it is opening up, orientation screw rod inclination be fixed on the base and on
Main shift fork arm or shift fork body are withstood in end, and locking positioning mechanism is fixed on the base vertically, moves hand pressure handle pushing rod vertical
Direction moves to clamp shifting fork assembly.
2. the ultrasonic examination fixture of shifting fork assembly weld seam according to claim 1, it is characterised in that：The top of the mandril
Portion is equipped with arc-shaped shift fork locating piece.
3. the ultrasonic examination fixture of shifting fork assembly weld seam according to claim 1, it is characterised in that：On the fixed pin
Equipped with positioning convex platform.
4. the ultrasonic examination fixture of shifting fork assembly weld seam according to claim 3, it is characterised in that：The fixed pin is logical
Connection bolt is crossed to be removably attachable on pedestal.
5. the ultrasonic examination fixture of shifting fork assembly weld seam according to claim 1, it is characterised in that：The orientation block is logical
Bolt is overregulated to be removably attachable on pedestal.
6. the ultrasonic examination fixture of shifting fork assembly weld seam according to claim 1, it is characterised in that：The pedestal is main
The vertical plate being fixed on bottom plate by bottom plate and vertically forms, and the two sides of the vertical plate are fixed with several groups attitude reference device and locking is fixed
Position mechanism, wherein the locking positioning mechanism for favouring the attitude reference device of pedestal setting and being connected on pedestal vertically is one group of setting
In the wherein side of vertical plate, the attitude reference device of the locking positioning mechanism and vertical direction setting that favour pedestal connection is one group and sets
Set the other side in vertical plate.
7. the ultrasonic examination fixture of shifting fork assembly weld seam according to claim 1, it is characterised in that：The pedestal is main
The vertical plate being fixed on bottom plate by bottom plate and vertically forms, and the two is L-shaped, several groups are fixed on vertical plate favour pedestal and set
The attitude reference device set and the locking positioning mechanism being connected on pedestal vertically, or be fixed with several groups on vertical plate and favour bottom
The locking positioning mechanism of seat connection and the attitude reference device of vertical direction setting.
8. the ultrasonic examination fixture of shifting fork assembly weld seam according to claim 6, it is characterised in that：The vertical plate two sides
Attitude reference device and locking positioning mechanism be respectively four groups, and mutually stagger and be connected on pedestal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810452791.XA CN108872395A (en) | 2018-05-13 | 2018-05-13 | The ultrasonic examination fixture of shifting fork assembly weld seam |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810452791.XA CN108872395A (en) | 2018-05-13 | 2018-05-13 | The ultrasonic examination fixture of shifting fork assembly weld seam |
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| CN108872395A true CN108872395A (en) | 2018-11-23 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201810452791.XA Pending CN108872395A (en) | 2018-05-13 | 2018-05-13 | The ultrasonic examination fixture of shifting fork assembly weld seam |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115476098A (en) * | 2022-09-30 | 2022-12-16 | 磐吉奥科技股份有限公司 | Automatic welding tool for shifting fork |
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