CN205496622U - Test welding residual stress 's automatically regulated drilling equipment - Google Patents
Test welding residual stress 's automatically regulated drilling equipment Download PDFInfo
- Publication number
- CN205496622U CN205496622U CN201620217941.5U CN201620217941U CN205496622U CN 205496622 U CN205496622 U CN 205496622U CN 201620217941 U CN201620217941 U CN 201620217941U CN 205496622 U CN205496622 U CN 205496622U
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- China
- Prior art keywords
- motor
- residual stress
- drilling
- drive mechanism
- welding residual
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Abstract
The utility model relates to a test welding residual stress's automatically regulated drilling equipment, X includes two supplementary sliders to actuating mechanism, Y includes a supplementary slider to actuating mechanism, fixing device be used for with a whole set of drilling equipment be fixed in await measuring the examination welding residual stress the region in, the setting that two X were parallel to each other along the X orientation to the guide rail is on fixing device, and X sets up on X is to the guide rail to actuating mechanism, Y to actuating mechanism fixed connection on two the supplementary sliders of X to actuating mechanism, the drilling assembly is connected to actuating mechanism's supplementary slider with Y, X can be on X is to the guide rail moves along the X orientation to actuating mechanism, and Y can drive setting supplementary slider above that to actuating mechanism and move along the Y orientation, and the drilling assembly can slider connected supplementary relatively moves in the YZ plane. The utility model overcomes current drilling equipment needs to fix many times, work load is big, the technical defect of inefficiency.
Description
[technical field]
This utility model relates to a kind of drilling equipment, is a kind of residual for rotary wheel of water turbine welding in more detail
What residue stress was tested is automatically adjusted drilling equipment.
[background technology]
Rotary wheel of water turbine is generally fabricated by by welding procedure by crown, lower ring and blade, after welding
Metal structure internal there is bigger residual stress, this stress not only arrangement works longevity to rotary wheel of water turbine
Life has a direct impact, but also is the one of the main reasons of induction runner blade crackle.Therefore, the hydraulic turbine turns
The welding residual stress test of wheel has important practical meaning in engineering.
Residual stress test method is numerous, is commonly divided into mechanical measurement and physical measurement.Machinery measures
Method typically refers to local failure component, and component inside stress is released, and is arranged in answering of measuring point by measurement
Become sheet strain and obtain the size of residual stress, mainly have bar method of cutting, cut milling annular groove method, Blind Hole Method etc..Physics
Measure rule to refer to, by physical means, component not destroyed, by the correlative of various distinct methods
Reason amount and the size of the relation mensuration residual stress of residual stress change, such as magnetic survey method, X-ray diffraction method, surpass
Sonic method etc..The residual stress test method of rotary wheel of water turbine mainly has x-ray method, electrical measurement Blind Hole Method, pressure
Trace methods etc., are most widely used with electrical measurement Blind Hole Method and ripe the most especially, and the method is little to component damage, behaviour
Make simple, degree of accuracy high, and the method has become the standard test method of field measurement and (has referred to ASTM
E837-99)。
In actual rotary wheel of water turbine residual stress test, owing to the structure of runner is complicated, stress easily occur
Space, the position relatively narrower concentrated, existing electrical measurement Blind Hole Method drilling equipment needs certain working place, no
Can be suitably used for whole runner welding position.Further, the test of each measuring point is required for retightening device, tune
Whole centering, workload is big, and efficiency is low.
[utility model content]
The purpose of this utility model be to provide a kind of test welding residual stress be automatically adjusted drilling equipment,
Need repeatedly to fix with the drilling equipment solving to propose in above-mentioned background technology, workload is big, inefficient skill
Art defect.
For achieving the above object, the following technical scheme of this utility model offer:
A kind of test welding residual stress be automatically adjusted drilling equipment, including two X direction guiding rails, fixing dress
Put, X to drive mechanism, Y-direction drive mechanism and boring assembly, described X to drive mechanism include two auxiliary
Slide block, described Y-direction drive mechanism is helped to include an auxiliary slider；
Described fixing device for being fixed on the region of welding residual stress to be tested by a whole set of described drilling equipment
In；
What two described X direction guiding rails were parallel to each other in X direction is arranged on described fixing device, described X
Be arranged on described X direction guiding rail to drive mechanism, described Y-direction drive mechanism be fixedly connected on described X to
On two auxiliary sliders of drive mechanism, described boring assembly and the auxiliary slider of described Y-direction drive mechanism
Connect；
Described X can move to drive mechanism on described X direction guiding rail along the X direction, and described Y-direction drives
Mechanism can drive the auxiliary slider being disposed thereon to move along the Y direction, and described boring assembly can be relative
Connected auxiliary slider moves in YZ plane.
Further, described X also includes that to drive mechanism X is to motor, actuating device and baffle plate；Described gear
The quantity of plate is four pieces, a pair each other of every two pieces of described baffle plates, and what the every pair of described baffle plate was parallel to each other is arranged on
The two ends of one described X direction guiding rail, described X drives described actuating device to rotate to motor, and described X is to electricity
Machine and described actuating device are all erected at arbitrary on described baffle plate, two described auxiliary sliders all with described biography
Dynamic device is in transmission connection, and is moved on described X direction guiding rail by the driving of described actuating device.
Further, described actuating device includes shaft coupling and leading screw；Described X passes through described to motor
Axial organ is connected with described lead screw transmission, and described shaft coupling is positioned at the outside of described baffle plate, one end of described leading screw
Be connected with described shaft coupling, the other end of described leading screw through after a described baffle plate by bearing and another
Described baffle plate connects.
Further, described Y-direction drive mechanism includes baffle plate, Y-direction guide rail, Y-direction motor, shaft coupling and silk
Thick stick；The quantity of described baffle plate is two, and what two described baffle plates were parallel to each other is separately positioned on described X to driving
On the auxiliary slider of motivation structure, described Y-direction guide rail connects two described baffle plates, and described Y-direction motor passes through institute
Stating shaft coupling to be connected with described leading screw, described Y-direction motor and described shaft coupling are positioned at the outside of described baffle plate,
Described leading screw runs through the hole opened in the middle of two described baffle plates, and described auxiliary slider is joined with described threads of lead screw transition
Close and connect, and described auxiliary slider can move on described Y-direction guide rail.
Further, described X is planetary reduction gear motor to motor and described Y-direction motor.
Further, described boring assembly includes central slider, drilling cramp, drilling tool, drilling cramp motor and drilling cramp silk
Thick stick；Inside described central slider, the worm screw in employing DC motor Driver worm-gear-worm mechanism rotates, described whirlpool
Wheel is bolted to connection with described drilling cramp, the described drilling cramp motor of fixing connection, described brill on described drilling cramp
Frame motor is connected with described drilling cramp leading screw, and described drilling cramp leading screw is in transmission connection with described drilling tool thread, described brill
Described drilling tool can be promoted during frame screw turns up and down move.
It should be noted that described drilling cramp screw turns drive drilling tool move up and down and worm-gear-worm rotate
Directional combination achieves the boring assembly effect at YZ rotation with in surface.Described drilling cramp leads to described central slider
Crossing bolt to connect, described drilling tool is fixed on described drilling cramp, and described drilling cramp motor uses high thrust direct current generator,
Lasting, steady thrust needed for boring is provided；DC motor Driver worm screw rotates, and worm screw drives turbine circumference
Rotate, thus drive the drilling cramp being connected with turbine to rotate, it is possible to be adjusted to drilling tool to the most bent to angle,
Drilling cramp leading screw is driven to drive the drilling tool being connected with drilling cramp leading screw to move up and down, finally by drilling cramp motor the most again
Arrive the position needing to test welding residual stress, by drilling cramp motor to the drill bit (spiral bit) in drilling tool
Pressure, completes boring procedure.
Further, described drilling cramp is additionally provided with sight glass fairlead, in described sight glass fairlead, is provided with sight glass,
Described sight glass needs the position of boring for being directed at.
The technical scheme further improved is, described drilling tool includes drill bit, the number of described sight glass fairlead
Amount is three, is separated by 90 ° of layouts between each described sight glass fairlead, and three are arranged on described sight glass and guide
The focus of the described sight glass in set all extended lines with the drill bit in described drilling tool or drill bit overlap.
Further, described fixing device includes that bottom bracket and magnechuck, described bottom bracket pass through spiral shell
Bolt is hinged on the bottom of described X direction guiding rail, and described magnechuck passes through bolted splice at described bottom bracket
Bottom.
Further, the two ends of each described X direction guiding rail are propped up by one described bottom of bolted splice respectively
Frame, the bottom of each described bottom bracket is all by two described magnechucks of bolted splice.
The beneficial effects of the utility model are: for the curvature of rotary wheel of water turbine weld seam test zone curved surface, energy
Reach the angle by regulating magnechuck, the drilling equipment that is automatically adjusted of described test welding residual stress is consolidated
Fixed on the curved surface of rotary wheel of water turbine weld seam test zone, adaptability is higher；And after once fixing, can lead to
Overregulate X worm-gear-worm mechanism in drive mechanism, Y-direction drive mechanism, central slider and drilling cramp electricity
Machine realizes repeatedly precise positioning, is automatically adjusted test welding residual stress in drilling equipment fixed range
Different measuring points position automatically adjusts, and completes centering, boring, it is not necessary to manual operation.According to the most residual
The conventional layout of residue stress test, usual each test zone arranges 4-5 on the vertical line of axis of a weld
Individual measuring point, this device can complete the whole measuring points test in whole test zone, greatly after ensureing once mounting
Improve greatly work efficiency.This utility model solves prior art to some narrow space portion of rotary wheel of water turbine
Position can not carry out the problem of residual stress test, and achieves the automatic regulation function of boring procedure, improves effect
Rate.
[accompanying drawing explanation]
Fig. 1 is the shaft side figure of an embodiment of the present utility model；
Fig. 2 is the schematic front view of Fig. 1；
Fig. 3 is the schematic top plan view of Fig. 1；
Fig. 4 is the internal structure schematic diagram of boring assembly；
Fig. 5 is the top view of sight glass fairlead.
Description of reference numerals is as follows:
1-X direction guiding rail；2-fixing device；3-X is to drive mechanism；4-Y is to drive mechanism；5-holes assembly；
201-bottom bracket；202-magnechuck；301-X is to motor；401-Y direction guiding rail；402-Y is to motor；
501-central slider；502-drilling cramp；503-drilling tool；504-drilling cramp motor；505-drilling cramp leading screw；506-bores
Head；6-auxiliary slider；7-baffle plate；8-shaft coupling；9-leading screw；10-sight glass fairlead.
[detailed description of the invention]
For making the purpose of this utility model, technical scheme and advantage clearer, below will be to this utility model
Technical scheme be described in detail.
For the ease of understanding this utility model, below in conjunction with Figure of description and embodiment to this utility model
Do more comprehensively, describe meticulously, but protection domain of the present utility model is not limited to embodiment in detail below.
It should be strongly noted that when a certain element be described as " with ... fix/be fixed on and ... connection/
Be connected to " another element time, it can be directly to fix, be connected on another element, it is also possible to is to pass through
Other intermediate connectors are indirectly fixed, are connected on another element.Unless otherwise defined, used in hereafter
The implication that is generally understood that with those skilled in the art of all technical terms identical.Specialty used herein
Term is intended merely to describe the purpose of specific embodiment, is not intended to limit the protection domain that this use is novel.
Fill as it is shown in figure 1, this utility model provides a kind of boring that is automatically adjusted testing welding residual stress
Putting, including two X direction guiding rails 1, fixing device 2, X is to drive mechanism 3, Y-direction drive mechanism 4 and bores
Hole assembly 5, to drive mechanism 3, described X includes that two auxiliary sliders 6, described Y-direction drive mechanism 4 include
One auxiliary slider 6；
Described fixing device 2 for being fixed on the district of welding residual stress to be tested by a whole set of described drilling equipment
In territory；
What two described X direction guiding rails 1 were parallel to each other in X direction is arranged on described fixing device 2, institute
Stating X and be arranged on described X direction guiding rail 1 to drive mechanism 3, described Y-direction drive mechanism 4 is fixing to be connected
At described X on two auxiliary sliders 6 of drive mechanism 3, described boring assembly 5 drives with described Y-direction
The auxiliary slider 6 of motivation structure 4 connects；
Described X can move to drive mechanism 3 on described X direction guiding rail 1 along the X direction, described Y-direction
Drive mechanism 4 can drive the auxiliary slider 6 being disposed thereon to move along the Y direction, described boring assembly 5
Can move in YZ plane relative to connected auxiliary slider 6.
To drive mechanism 3, described X includes that X is to motor 301, actuating device, baffle plate 7 and auxiliary slider 6；
The quantity of described baffle plate 7 is four pieces, and a pair each other of every two pieces of described baffle plates 7, every pair of described baffle plate 7 is mutual
The parallel two ends being arranged on a described X direction guiding rail 1, described X drives described transmission to fill to motor 301
Putting rotation, described X is all erected at arbitrary on described baffle plate 7 to motor 301 and described actuating device, institute
Stating auxiliary slider 6 to be connected with described drive, described actuating device can drive described auxiliary slider 6
X direction guiding rail 1 moves.
Described actuating device includes shaft coupling 8 and leading screw 9；Described X passes through described shaft coupling 8 to motor 301
Being in transmission connection with described leading screw 9, described shaft coupling 8 is positioned at the outside of described baffle plate 7, described leading screw 9
One end is connected with described shaft coupling 8, and the other end of described leading screw 9 passes through axle after a described baffle plate 7
Hold and be connected with baffle plate another described 7.
Described Y-direction drive mechanism 4 include baffle plate 7, Y-direction guide rail 401, Y-direction motor 402, shaft coupling 8,
Leading screw 9 and auxiliary slider 6；The quantity of described baffle plate 7 is two, two described baffle plates 7 be parallel to each other point
Not being arranged on described X on the auxiliary slider 6 of drive mechanism 3, described Y-direction guide rail 401 connects two institutes
Stating baffle plate 7, described Y-direction motor 402 is connected with described leading screw 9 by described shaft coupling 8, described Y-direction electricity
Machine 402 and described shaft coupling 8 are positioned at the outside of described baffle plate 7, and described leading screw 9 is through two described baffle plates 7
The hole that centre is opened, described auxiliary slider 6 is connected with described leading screw 9 screw thread interference fits, and described auxiliary is sliding
Block 6 can move on described Y-direction guide rail 401.
Described X is planetary reduction gear motor to motor 301 and described Y-direction motor 402.
As shown in Figures 2 to 4, described boring assembly 5 include central slider 501, drilling cramp 502, drilling tool 503,
Drilling cramp motor 504 and drilling cramp leading screw 505；Described central slider 501 internal employing DC motor Driver turbine-
Worm screw in worm mechanism rotates, and described turbine is bolted to connection with described drilling cramp 502, described brill
On frame 502, fixing described drilling cramp motor 504, described drilling cramp motor 504 and the described drilling cramp leading screw 505 of connecting connects
Connecing, described drilling cramp leading screw 505 is connected with described drilling tool 503 screw-driven, and described drilling cramp leading screw 505 rotates
Time can promote described drilling tool 503 up and down and move.
As shown in Fig. 2, Fig. 3 and Fig. 5, described drilling cramp 502 is additionally provided with sight glass fairlead 10, described
Being provided with sight glass in sight glass fairlead 10, described sight glass needs the position of boring for being directed at.Described drilling tool 503
Including drill bit 506, the quantity of described sight glass fairlead 10 is three, between each described sight glass fairlead 10
Be separated by 90 ° of layouts, the focus of three described sight glass being arranged in described sight glass fairlead 10 all with described brill
Drill bit 506 or the extended line of drill bit 506 in tool 503 overlap.
As shown in Figures 2 and 3, described fixing device 2 includes bottom bracket 201 and magnechuck 202, institute
Stating bottom bracket 201 by bolted splice in the bottom of described X direction guiding rail 1, described magnechuck 202 leads to
Cross the bolted splice bottom at described bottom bracket 201.The two ends of each described X direction guiding rail 1 are passed through respectively
The described bottom bracket 201 of bolted splice one, bolted splice is all passed through in the bottom of each described bottom bracket 201
Two described magnechucks 202.
Embodiment:
First according to test zone position, each bottom bracket 201 and the angle of magnechuck 202 are adjusted, logical
After electricity, magnechuck 202 produces suction, is attached to test surfaces, and clamping screw (is used for fixing bottom
Support 201 and magnechuck 202), enable whole drilling equipment range of accommodation coverage test region.
Being arranged on by sight glass in sight glass fairlead 10, drilling tool 503 clamps drill bit 506, is arranged on drilling cramp 502
On, the position relationship of drilling tool 503 and measuring point can be seen on computers by sight glass.X is to motor and Y-direction electricity
Machine drives coupled leading screw 9 to rotate respectively, thus drives corresponding auxiliary slider 6 at corresponding X
In direction guiding rail or Y-direction guide rail, along X to and/or Y-direction move, the auxiliary slider 6 of Y-direction drives center
Slide block 501 moves, and central slider 501 is regulated to the approximate range of measuring point, completes coarse adjustment.
Continue to control drilling cramp motor 504 and drive drilling cramp leading screw 505, drive drilling cramp 502 to move along Z-direction, make brill
506 level off to measuring point；The internal direct current generator (not shown) arranged of control centre's slide block, drives
Worm gear-endless screw mechanism in central slider 501, makes central slider 501 realize angular adjustment together with drilling cramp 502；
Alternately and repeatedly regulate moving up and down and angular turn of drilling cramp 502, carry out accurate adjustment, be finally completed drill bit 506
Centering with measuring point.Drilling tool 503 is driven to complete work of holing.
This utility model is not limited to above-mentioned preferred forms, and those of ordinary skill in the art are new in this practicality
Other various forms of products all can be drawn, no matter but making any change in its shape or structure under the enlightenment of type
Changing, every have same as the present application or akin technical scheme, all falls within protection model of the present utility model
Within enclosing.
Claims (10)
1. one kind test welding residual stress be automatically adjusted drilling equipment, it is characterised in that include two X
Direction guiding rail, fixing device, X are to drive mechanism, Y-direction drive mechanism and boring assembly, and described X is to driving
Mechanism includes that two auxiliary sliders, described Y-direction drive mechanism include an auxiliary slider；
Described fixing device for being fixed on the region of welding residual stress to be tested by a whole set of described drilling equipment
In；
What two described X direction guiding rails were parallel to each other in X direction is arranged on described fixing device, described X
Be arranged on described X direction guiding rail to drive mechanism, described Y-direction drive mechanism be fixedly connected on described X to
On two auxiliary sliders of drive mechanism, described boring assembly and the auxiliary slider of described Y-direction drive mechanism
Connect；
Described X can move to drive mechanism on described X direction guiding rail along the X direction, and described Y-direction drives
Mechanism can drive the auxiliary slider being disposed thereon to move along the Y direction, and described boring assembly can be relative
Connected auxiliary slider moves in YZ plane.
Test welding residual stress the most according to claim 1 be automatically adjusted drilling equipment, its feature
Being, described X also includes that to drive mechanism X is to motor, actuating device and baffle plate；The quantity of described baffle plate
Being four pieces, a pair each other of every two pieces of described baffle plates, what the every pair of described baffle plate was parallel to each other is arranged on a described X
The two ends of direction guiding rail, described X drives described actuating device to rotate to motor, and described X is to motor and described biography
Dynamic device is all erected at arbitrary on described baffle plate, two described auxiliary sliders all with described drive
Connect, and moved on described X direction guiding rail by the driving of described actuating device.
Test welding residual stress the most according to claim 2 be automatically adjusted drilling equipment, its feature
Being, described actuating device includes shaft coupling and leading screw；Described X passes through described shaft coupling with described to motor
Lead screw transmission connects, and described shaft coupling is positioned at the outside of described baffle plate, one end of described leading screw and described shaft coupling
Device connects, and the other end of described leading screw is connected with another described baffle plate by bearing after a described baffle plate
Connect.
Test welding residual stress the most according to claim 1 be automatically adjusted drilling equipment, its feature
Being, described Y-direction drive mechanism includes baffle plate, Y-direction guide rail, Y-direction motor, shaft coupling and leading screw；Described
The quantity of baffle plate is two, and what two described baffle plates were parallel to each other is separately positioned on described X to drive mechanism
On auxiliary slider, described Y-direction guide rail connects two described baffle plates, and described Y-direction motor passes through described shaft coupling
Being connected with described leading screw, described Y-direction motor and described shaft coupling are positioned at the outside of described baffle plate, described leading screw
Running through the hole opened in the middle of two described baffle plates, described auxiliary slider is connected with described threads of lead screw interference fits,
And described auxiliary slider can move on described Y-direction guide rail.
5. fill according to the boring that is automatically adjusted of the test welding residual stress described in any one of claim 2-4
Put, it is characterised in that described X is planetary reduction gear motor to motor and described Y-direction motor.
Test welding residual stress the most according to claim 1 be automatically adjusted drilling equipment, its feature
Being, described boring assembly includes central slider, drilling cramp, drilling tool, drilling cramp motor and drilling cramp leading screw；Described
Inside central slider, the worm screw in employing DC motor Driver worm-gear-worm mechanism rotates, and described turbine is with described
Drilling cramp is bolted to connection, and fixing on described drilling cramp connects described drilling cramp motor, described drilling cramp motor with
Described drilling cramp leading screw connects, and described drilling cramp leading screw is in transmission connection with described drilling tool thread, and described drilling cramp leading screw turns
Described drilling tool can be promoted time dynamic up and down move.
Test welding residual stress the most according to claim 6 be automatically adjusted drilling equipment, its feature
Be, described drilling cramp be additionally provided with sight glass fairlead, in described sight glass fairlead, be provided with sight glass, described in peep
Mirror needs the position of boring for being directed at.
Test welding residual stress the most according to claim 7 be automatically adjusted drilling equipment, its feature
Being, described drilling tool includes that drill bit, the quantity of described sight glass fairlead are three, and each described sight glass guides
Being separated by 90 ° of layouts between set, the focus of three described sight glass being arranged in described sight glass fairlead is all and institute
The extended line stating the drill bit in drilling tool or drill bit overlaps.
Test welding residual stress the most according to claim 1 be automatically adjusted drilling equipment, its feature
Being, described fixing device includes bottom bracket and magnechuck, and described bottom bracket is existed by bolted splice
The bottom of described X direction guiding rail, described magnechuck passes through bolted splice in the bottom of described bottom bracket.
Test welding residual stress the most according to claim 9 be automatically adjusted drilling equipment, it is special
Levying and be, the two ends of each described X direction guiding rail are respectively by one described bottom bracket of bolted splice, each
The bottom of described bottom bracket is all by two described magnechucks of bolted splice.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620217941.5U CN205496622U (en) | 2016-03-21 | 2016-03-21 | Test welding residual stress 's automatically regulated drilling equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620217941.5U CN205496622U (en) | 2016-03-21 | 2016-03-21 | Test welding residual stress 's automatically regulated drilling equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205496622U true CN205496622U (en) | 2016-08-24 |
Family
ID=56733232
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620217941.5U Expired - Fee Related CN205496622U (en) | 2016-03-21 | 2016-03-21 | Test welding residual stress 's automatically regulated drilling equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205496622U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105598498A (en) * | 2016-03-21 | 2016-05-25 | 北京中水科工程总公司 | Automatic adjustment drilling device for testing welding residual stress |
| CN107855559A (en) * | 2017-10-31 | 2018-03-30 | 上海航天设备制造总厂 | Lightweight wallboard boring device and boring method |
| CN110744638A (en) * | 2019-11-28 | 2020-02-04 | 安徽东平木业股份有限公司 | Adjustable drilling device |
| CN112985665A (en) * | 2021-02-08 | 2021-06-18 | 内蒙古工业大学 | Welding residual stress automatic checkout device |
| CN118046210A (en) * | 2024-04-16 | 2024-05-17 | 成都飞机工业（集团）有限责任公司 | Accurate hole guiding device for hole forming in aircraft enclosed area |
-
2016
- 2016-03-21 CN CN201620217941.5U patent/CN205496622U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105598498A (en) * | 2016-03-21 | 2016-05-25 | 北京中水科工程总公司 | Automatic adjustment drilling device for testing welding residual stress |
| CN105598498B (en) * | 2016-03-21 | 2018-10-09 | 北京中水科工程总公司 | A kind of automatic adjustment drilling equipment of test welding residual stress |
| CN107855559A (en) * | 2017-10-31 | 2018-03-30 | 上海航天设备制造总厂 | Lightweight wallboard boring device and boring method |
| CN110744638A (en) * | 2019-11-28 | 2020-02-04 | 安徽东平木业股份有限公司 | Adjustable drilling device |
| CN112985665A (en) * | 2021-02-08 | 2021-06-18 | 内蒙古工业大学 | Welding residual stress automatic checkout device |
| CN112985665B (en) * | 2021-02-08 | 2022-04-29 | 内蒙古工业大学 | Welding residual stress automatic checkout device |
| CN118046210A (en) * | 2024-04-16 | 2024-05-17 | 成都飞机工业（集团）有限责任公司 | Accurate hole guiding device for hole forming in aircraft enclosed area |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160824 Termination date: 20190321 |