CN107252904A - A kind of drilling equipment of blind hole measuring residual stress - Google Patents
A kind of drilling equipment of blind hole measuring residual stress Download PDFInfo
- Publication number
- CN107252904A CN107252904A CN201710434844.0A CN201710434844A CN107252904A CN 107252904 A CN107252904 A CN 107252904A CN 201710434844 A CN201710434844 A CN 201710434844A CN 107252904 A CN107252904 A CN 107252904A
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- China
- Prior art keywords
- drill
- drill bit
- bolt
- bushing
- residual stress
- Prior art date
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B39/00—General-purpose boring or drilling machines or devices; Sets of boring and/or drilling machines
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B49/00—Measuring or gauging equipment on boring machines for positioning or guiding the drill; Devices for indicating failure of drills during boring; Centering devices for holes to be bored
- B23B49/02—Boring templates or bushings
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B2270/00—Details of turning, boring or drilling machines, processes or tools not otherwise provided for
- B23B2270/48—Measuring or detecting
- B23B2270/483—Measurement of force
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Drilling And Boring (AREA)
Abstract
The invention discloses a kind of drilling equipment of blind hole measuring residual stress, including bottom plate, column, sliding lock set, bolt, outer guide rod, inner guide, split lock tube, electric drill, positioning bolt, drill bushing, wherein：Column is fixed on base, and outer guide rod and inner guide are moved by sliding lock set respectively, and drill bushing moves through roller gear by split lock tube and rotated；Sliding lock set is arranged on vertical rod and inner guide and is fixed on a certain position by bolt；Split lock tube is made up of two parts, and its one end is connected by pin, and the other end is fixed by trip bolt, and installs bolt to realize that optional position is positioned on dual lock set top；The drilling equipment of blind hole measuring residual stress of the present invention, bit location is adjusted by bolt and roller gear, and need not be fitted and fixed on tested part, with larger flexibility ratio, next drilling process can be entered easily, so as to improve operating efficiency.
Description
Technical field
The present invention relates to a kind of drilling equipment, specifically a kind of drilling equipment of blind hole measuring residual stress.
Background technology
Main Related product is the blind hole measuring residual stress ZDL-II brills of Zhengzhou Research Institute of Mechanical Engineering in the market
Aperture apparatus is punched, it is necessary to be fixed on the flat surface of part, and needs to fasten with glue the drilling cramp of drilling equipment
Piece surface to be measured, it is impossible to which the piece surface larger to depth drills, while borehole accuracy is difficult to Efficient Support.
Wei Jun et al. inventions《A kind of drilling equipment of Blind Hole Technique for Measuring residual stress》(publication number：CN204565182U)
Drilled using including parts such as disk suction base, I-shaped bracket, back-electromagnetic force block, guide sleeve and drills, though the invention
The precision problem of drilling-hole positioning device is so solved, but complicated and the big part of depth the drilling problems of Surface Structures are still not
Use requirement can be met.
Chen Huaining et al. inventions《A kind of boring method residual stress measurement system》(publication number：CN106289582A brill)
Aperture apparatus part is made up of adjustable speed electric hand drill, tool microscope, drilling rod, guide cylinder, magnetic support base etc., though the invention
Positioning and the borehole accuracy of drilling-hole positioning device are so solved the problems, such as, but the drilling to the big and narrow narrow part of case depth is asked
Topic can not meet use requirement.
The drilling equipment of existing blind hole measuring residual stress, for the preferable fixation of heavy parts and drills, but for
Small complex constitutional detail, it is fixed just extremely difficult.This structure has the disadvantage that：
1. for the part of labyrinth, original drilling equipment is fixed extremely difficult or can not fixed, and this is resulted in
Inferior position that is inaccurate or can not punching is punched, so as to increase the error of follow-up residual stress measurement；
2. original drilling equipment, its base needs glue to be bonded on part, the vestige that glue leaves is extremely difficult clearly to be fallen,
This causes follow-up 3-D scanning part model to bring great harmful effect, or even can not complete the three-dimensional of some precision components
Size comparison works；
3. original drilling equipment can not be punched to deep and narrow structure, which limits its application.
The content of the invention
For above-mentioned the deficiencies in the prior art, it is an object of the invention to provide a kind of brill of blind hole measuring residual stress
Aperture apparatus, to solve the problems mentioned in the above background technology.
To achieve the above object, the present invention provides following technical scheme：
A kind of drilling equipment of blind hole measuring residual stress, including：It is bottom plate, column, sliding lock set, bolt, outer
Guide rod, inner guide, split lock tube, electric drill, drill bushing, drill bit and drill bit fix bar, wherein：
The column is fixed on the bottom plate；The quantity of the column is at least four；
The outer guide rod is moved by the sliding lock set along the uprights vertical, and continuous by the bolt
It is positioned at any height on the column；
The inner guide, along the outer guide rod horizontal movement, and is connected by the sliding lock set by the bolt
It is continuous to be positioned at any horizontal level on the outer guide rod；
The drill bushing realizes horizontal displacement by the split lock tube along the inner guide, and is connected by the bolt
It is continuous to be positioned at any horizontal level on the inner guide, while the axial direction for the roller gear that the drill bushing is set by its two ends turns
Gear that is dynamic and being opened by roller gear and split lock tube inner side, which is engaged, to be realized that the drill bushing is discontinuous and is positioned at any inclination angle
Degree；
Drill bit fix bar is installed, the upper end of the drill bit fix bar is connected with electric drill in the drill bushing, the drill bit is consolidated
The drill bit is installed in the lower end of fixed pole, and the electric drill drives the drill bit to rotate to reach drilling by the drill bit fix bar
Purpose, it is horizontal movement by the outer guide rod along the moving vertically of the column, the inner guide along the outer guide rod, described
Horizontal displacement, the axial rotation of the roller gear and its internal tooth with the split lock tube of the split lock tube along the inner guide
The engagement of wheel coordinates so that the drill bushing has three one-movement-freedom-degrees and a rotary freedom, that is, realizes the drill bit
Three one-movement-freedom-degrees and a rotary freedom motion.
Preferably, the inside of the drill bushing, which is provided with bushing, bushing, is provided with bit sub, and drill bit is installed inside bit sub
Fix bar, the upper end of drill bit fix bar is connected with electric drill, and the lower end of drill bit fix bar has been connected through a screw thread chuck, chuck inner clip
Hold drill bit；Bit sub rotation in the electric drill driving lining, so as to drive drill bit to rotate by drill bit fix bar, reaches drilling
Purpose.
Preferably, the depth that height limiter is used to keyhole is provided with the drill bushing.
It is highly preferred that the height limiter includes：Limit for height piece, tabletting and lasso, wherein：
The lasso is arranged at the outside of bit sub, and lasso Slideslip and is positioned outside bit sub by bolt；On drill bushing
Outer wall is held to be provided with screwed hole, tabletting is provided with external screw thread, and tabletting is fixed in the screwed hole on drill bushing by its external screw thread；Before drilling
Limit for height piece is manually inserted between lasso and tabletting and lasso is fixed, the thickness of limit for height piece is drilling depth, is taken during drilling
Go out limit for height piece, promote electric drill drill bit is pierced piece surface until lasso and tabletting are contacted, drilling terminates.
It is highly preferred that the screwed hole has four and is distributed on the outer wall of the drill bushing upper end, in each screwed hole respectively
One positioning bolt is installed, bolt is transposed to finely tune the bushing locations in drill bushing by turn, so as to finely tune drill bit in drilling
The orientation of front, rear, left and right on surface, so that the boring point selected on drill bit alignment tested part.
Preferably, the length of the drill bit fix bar is series change, for different depth and different stenosis
Piece surface drilled.
Preferably, the split lock tube is by pin twisting, and is fastened by bolts.
Preferably, the bottom plate is provided with part fixed seat, for fixing tested part.
Preferably, the every column is bolted on the bottom plate.
Preferably, the two ends of the every outer guide rod are bolted with sliding lock set.
Preferably, the two ends of the every inner guide are bolted with sliding lock set.
In the present invention, the drill bushing is enclosed on three directions by column, outer guide rod, inner guide, dual lock and moved, and passes through
Gear engagement is discontinuous to be positioned at a certain angle of inclination, and drill bushing is not surveyed part with lower section and is connected, is fixed on without by glue
On part.
Compared with prior art, the beneficial effects of the invention are as follows：
1. in the present invention drill bushing moved by parts such as column, outer guide rod, inner guide, split lock tubes along three directions and
Rotated around a direction, and drill bushing is not surveyed part with lower section and is connected, and is fixed on without by glue on part, so as to reduce
The drilling difficulty of small complex part, improves the borehole accuracy of drilling equipment；
2. drilling equipment of the present invention is not secured on surveyed part, glue tracks will not be left in piece surface,
The size distortion and damaged surfaces of part will not be brought because of the mechanical oscillation of electric drill in drilling simultaneously；
3. drilling equipment of the present invention has larger flexibility ratio, it is only necessary to which adjustment bolt can just realize the shifting of drill bit
Move position, next drilling process can be entered easily, so as to improve operating efficiency；
4. drilling equipment of the present invention is not secured on tested part, while there is longer drill bit fix bar,
Deep and narrow piece surface can be drilled, so as to expand the measurement range of residual stress.
Brief description of the drawings
By reading the detailed description made with reference to the following drawings to non-limiting example, further feature of the invention,
Objects and advantages will become more apparent upon：
Fig. 1 is the device stereogram of one embodiment of the present invention；
Fig. 2 is the device sectional view of one embodiment of the present invention；
Fig. 3 is the drill bushing of one embodiment of the present invention and the structural representation of split lock tube；
In figure：
The outer guide rod of 1- bottom plates, 2- columns, 3- sliding lock sets, 4- bolts, 5- bolts, 6-, 7- inner guides, 8- pins,
The split lock tubes of 9-, 10- bolts, 11 electric drills, 12- bit subs, 13- limits for height piece, 14- tablettings, 15- positioning bolt, 16- drill bushings, 17-
Drill bit, 18- drill bits fix bar, 19- lassos, 20- bushings, 21- chucks, 22- roller gears.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Site preparation is described, it is clear that described embodiment is only a part of embodiment of the invention, rather than whole embodiments.It is based on
Embodiment in the present invention, it is every other that those of ordinary skill in the art are obtained under the premise of creative work is not made
Embodiment, belongs to the scope of protection of the invention.
As shown in FIG. 1 to 3, a kind of drilling equipment of blind hole measuring residual stress, including：Bottom plate 1, column 2, slip
Lock tube 3, bolt 4, bolt 5, outer guide rod 6, inner guide 7, pin 8, split lock tube 9, bolt 10, electric drill 11, bit sub 12,
Limit for height piece 13, tabletting 14, positioning bolt 15, drill bushing 16, drill bit 17, drill bit fix bar 18, lasso 19, bushing 20, the and of chuck 21
Roller gear 22；
As shown in figure 1, counter sink is drilled with the bottom plate 1 to be used to fix whole drilling equipment and tested part；
The column 2 has 4, and the row of 42 liang of root posts row two be arranged in parallel, solid by four bolts 5 respectively per root post 2
It is scheduled on the bottom plate 1；
The outer guide rod 6 has two, and the two ends of every outer guide rod 6 are connected by bolt 5 with a sliding lock set 3 respectively,
Sliding lock set 3 is arranged on column 2 and is provided with bolt 4 on each sliding lock set 3, and sliding lock set 3 is vertical along column 2
Direction movement is to realize the vertical displacement of outer guide rod 6, and by the consecutive tracking of bolt 4 in a certain height and position on column 2；
The inner guide 7 has two, and the two ends of every inner guide 7 are connected by bolt with a sliding lock set 3 respectively, sliding
Dynamic lock tube 3 is installed on outer guide rod 6 and bolt 4 is provided with each sliding lock set 3, and sliding lock set 3 is along the outer water of guide rod 6
Square to mobile to realize the horizontal displacement of inner guide 7, and by the consecutive tracking of bolt 4 in certain level on outer guide rod 6
Position；
As shown in Figure 1, Figure 3, the split lock tube 9 has two and is separately mounted on an inner guide 7；Each dual lock
Set 9 is made up of two halves, and outside is connected by pin 8, inner side is connected by bolt 10 for it；The inner side of two split lock tubes 9 is equal
Internal gear is provided with, the two ends of drill bushing 16 are respectively equipped with roller gear 22, and internal gear is engaged with roller gear 22, and two described right
Set 9 of unlocking moves the drive horizontal displacement of drill bushing 16 along the horizontal direction of inner guide 7, while axle of the drill bushing 16 by roller gear 22
Realize to rotating and being engaged with the internal gear of split lock tube 9 by roller gear 22 and discontinuous be positioned at a certain angle of inclination.
As shown in Fig. 2 the inside of the drill bushing 16 is provided with bushing 20, the inside of bushing 20 is provided with bit sub 12, bores
Drill bit fix bar 18 is installed, the lower end of drill bit fix bar 18, which is connected through a screw thread in chuck 21, chuck 21, to be clamped in head handle 12
Drill bit 17, the upper end connection electric drill 11 of drill bit fix bar 18, can be with the bit sub inside driving lining 20 by manipulating electric drill 11
12 rotations, reach drilling purpose；Meanwhile, drill bushing 16,16 times insertion limit for height pieces 13 of drill bushing, before drilling are installed in the outside of bit sub 12
Drill bit 17 is set to be directed at the drill bushing 16 in foil gauge center and the outside of fixed drill bit handle 12, drilling can be started by extracting limit for height piece 13 out, be bored
The depth in hole is equal to the thickness of limit for height piece 13.
The sliding lock set 3 realizes vertically moving for drill bit 17, the sliding lock set along the motion of the vertical direction of column 1
3 move along the horizontal direction of outer guide rod 6 and realize moving horizontally for drill bit 17, water of two split lock tubes 9 along inner guide 7
Square realize moving horizontally for drill bit 17 to movement, the drill bushing 16 by the axial rotation of roller gear 22 and its with it is split
The engagement of the internal gear of lock tube 9, which coordinates, realizes the rotary freedom of drill bit 17.
As shown in Figure 1 and Figure 2, the lasso 19 can the outer Slideslip of bit sub 12 and by with positioning the model of bolt 15
Identical bolt is positioned, and the tabletting 14 is fixed on by its external screw thread in the screwed hole of the upper end of drill bushing 16, in lasso before drilling
Limit for height piece 13 is manually inserted between 19 and tabletting 14 and lasso 19 is fixed, the thickness of limit for height piece 13 is drilling depth, is drilled
When take out limit for height piece 13, grasp and promote electric drill 11 drill bit 17 is pierced piece surface until lasso 19 and tabletting 14 connect
Touch, drilling terminates.
As one preferred embodiment, the length of the drill bit fix bar 18 is series change, for deep and narrow
Narrow piece surface is drilled, so as to expand the measurement range of residual stress.
As shown in figure 1, as one preferred embodiment, being evenly equipped with four screwed holes on the outer wall of drill bushing 16, often
A positioning bolt 15 is separately installed with individual screwed hole, the positioning bolt 15 is used for the position for finely tuning bushing 20 in drill bushing 16
Put, so that the orientation of the front, rear, left and right on boring surface of drill bit 17 is finely tuned, so that the drilling selected on the alignment element of drill bit 17
Point.
As one preferred embodiment, part fixed seat is provided with the bottom plate 1, for fixing tested part.
The operation principle of the drilling equipment of the blind hole measuring residual stress is：
The drilling equipment can quickly move the outer He of guide rod 6 by sliding lock set 3, split lock tube 9 and bolt 4
The position of inner guide 7, during mobile random component, the drill bit 17 of the lower end of drill bushing 16 and the electric drill 11 of upper end need not change,
Bolt 4 need to be only adjusted when changing bore position, replace simple and fast, and need not be fixed using glue, not with being tested
Feature contacts, it is to avoid damage to tested part surface；One in each mobile outer guide rod 6, inner guide 7, split lock tube 9
It can complete once to drill, only just need three to move together when bore position variation is larger, so as to substantially increase brill
Hole efficiency；The internal gear of the inner side of split lock tube 9 is engaged with the roller gear 22 at the two ends of drill bushing 16, by adjust the engagement of gear come
The rotation of drill bushing 16 is realized, this can drill to complicated inclination curved surface, greatly expand drilling scope and residual stress
The scope in measurement surface region；Bit sub 12 is driven by electric drill 11, it is rotated in bushing 20, before drilling under lasso 19
Insertion limit for height piece 13 carrys out keyhole depth, and limit for height piece 13 is taken out during drilling, when on the lasso 19 outside bit sub 12 and drill bushing 16
When the tabletting 14 at end is contacted, drilling is finished, and drilling depth is equal to the thickness of limit for height piece 13；Tested part is solid by part fixed seat
It is scheduled on bottom plate 1, tested part need not be moved repeatedly in boring procedure, so as to improves operating efficiency.
It is obvious to a person skilled in the art that the invention is not restricted to the details of above-mentioned one exemplary embodiment, Er Qie
In the case of without departing substantially from spirit or essential attributes of the invention, the present invention can be realized in other specific forms.Therefore, no matter
From the point of view of which point, embodiment all should be regarded as exemplary, and be nonrestrictive, the scope of the present invention is by appended power
Profit is required rather than described above is limited, it is intended that all in the implication and scope of the equivalency of claim by falling
Change is included in the present invention.Any reference in claim should not be considered as to the claim involved by limitation.
Moreover, it will be appreciated that although the present specification is described in terms of embodiments, not each embodiment is only wrapped
Containing an independent technical scheme, this narrating mode of specification is only that for clarity, those skilled in the art should
Using specification as an entirety, the technical solutions in the various embodiments may also be suitably combined, forms those skilled in the art
It may be appreciated other embodiment.
Claims (10)
1. a kind of drilling equipment of blind hole measuring residual stress, it is characterised in that：Including bottom plate (1), at least four root posts
(2), sliding lock set (3), bolt (4), at least two outer guide rods (6), at least two inner guides (7), split lock tube (9),
Electric drill (11), drill bushing (16), drill bit (17) and drill bit fix bar (18), wherein：The column (2) is fixed on the bottom plate
(1) on；
The outer guide rod (6) is moved vertically by the sliding lock set (3) along the column (2), and passes through the positioning spiral shell
Bolt (4) consecutive tracking is in any height on the column (2)；
The inner guide (7) along outer guide rod (6) horizontal movement, and passes through the positioning by the sliding lock set (3)
Bolt (4) consecutive tracking is in any horizontal level on the outer guide rod (6)；
The drill bushing (16) realizes horizontal displacement by the split lock tube (9) along the inner guide (7), and passes through the positioning
Bolt (4) consecutive tracking is in any horizontal level on the inner guide (7), while what the drill bushing (16) was set by its two ends
The axial rotation and the roller gear (22) of roller gear (22) are engaged with the internal gear opened on the inside of the split lock tube (9)
Realize that the drill bushing (16) is discontinuous and be positioned at a certain angle of inclination；
Drill bit fix bar (18) is installed, upper end and the electric drill (11) of the drill bit fix bar (18) connect in the drill bushing (16)
Connect, the drill bit (17) is installed in the lower end of the drill bit fix bar (18), and the electric drill (11) passes through the drill bit fix bar
(18) drive the drill bit (17) to rotate to realize drilling to reach the purpose of drilling, stood by the outer guide rod (6) along described
The horizontal movement along the outer guide rod (6) of the moving vertically of post (1), the inner guide (7), the split lock tube (9) are along described
The horizontal displacement of inner guide (7), the axial rotation of the roller gear (22) and its with the internal gear of the split lock tube (9)
Engagement coordinates so that the drill bushing (16) has three one-movement-freedom-degrees and a rotary freedom, that is, realizes the drill bit
(17) three one-movement-freedom-degrees and a rotary freedom motion.
2. a kind of drilling equipment of blind hole measuring residual stress according to claim 1, it is characterised in that：The drill bushing
(16) inside, which is provided with bushing (20), bushing (20), is provided with bit sub (12), and drill bit is installed inside bit sub (12) and is consolidated
Fixed pole (18), the lower end of drill bit fix bar (18) has been connected through a screw thread chuck (21), and drill bit (17) is clamped in chuck (21)；
Bit sub (12) rotation in electric drill (11) driving lining (20), so as to drive drill bit (17) by drill bit fix bar (18)
Rotate.
3. a kind of drilling equipment of blind hole measuring residual stress according to claim 2, it is characterised in that：, described
The depth that height limiter is used to keyhole is provided with drill bushing (16).
4. a kind of drilling equipment of blind hole measuring residual stress according to claim 3, it is characterised in that：The limit for height
Device includes：Limit for height piece (13), tabletting (14) and lasso (19), wherein：
The lasso (19) is arranged at the outside of bit sub (12), and lasso (19) is in bit sub (12) outer Slideslip and passes through bolt
Positioning；Drill bushing (16) upper end outer wall is provided with screwed hole, and tabletting (14) is provided with external screw thread, and tabletting (14) is fixed on by its external screw thread
In screwed hole on drill bushing (16)；Limit for height piece (13) is inserted between lasso (19) and tabletting (14) and fix lasso before drilling
(19), the thickness of limit for height piece (13) is drilling depth, and limit for height piece (13) is taken out during drilling, promotes electric drill (11) to make drill bit (17)
Piece surface is pierced until lasso (19) and tabletting (14) are contacted.
5. a kind of drilling equipment of blind hole measuring residual stress according to claim 4, it is characterised in that：The screw thread
Kong Yousi is individual and is distributed on the outer wall of the drill bushing (16) upper end, and a positioning bolt is separately installed with each screwed hole
(15), by bolt (15) of being transposed described in turn to finely tune bushing (20) position in drill bushing (16), so as to finely tune drill bit (17)
The orientation of front, rear, left and right on boring surface, so that the boring point selected on drill bit (17) alignment tested part.
6. a kind of drilling equipment of blind hole measuring residual stress according to claim any one of 1-5, it is characterised in that：
The length of the drill bit fix bar (18) is series change, is entered for the piece surface to different depth and different stenosis
Row drilling.
7. a kind of drilling equipment of blind hole measuring residual stress according to claim any one of 1-5, it is characterised in that：
The split lock tube (9) fastens by pin (8) twisting, and by bolt (10).
8. a kind of drilling equipment of blind hole measuring residual stress according to claim any one of 1-5, it is characterised in that：
Part fixed seat is provided with the bottom plate (1), for fixing tested part.
9. a kind of drilling equipment of blind hole measuring residual stress according to claim any one of 1-5, it is characterised in that：
The every column (2) is bolted on the bottom plate (1).
10. a kind of drilling equipment of blind hole measuring residual stress according to claim any one of 1-5, its feature exists
In：The two ends of the every outer guide rod (6) are bolted with sliding lock set (3)；
The two ends of the every inner guide (7) are bolted with sliding lock set (3).
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710434844.0A CN107252904B (en) | 2017-06-10 | 2017-06-10 | A kind of drilling equipment of blind hole measuring residual stress |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710434844.0A CN107252904B (en) | 2017-06-10 | 2017-06-10 | A kind of drilling equipment of blind hole measuring residual stress |
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| Publication Number | Publication Date |
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| CN107252904A true CN107252904A (en) | 2017-10-17 |
| CN107252904B CN107252904B (en) | 2019-01-01 |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108168755A (en) * | 2017-12-08 | 2018-06-15 | 燕山大学 | A kind of detection inside pipe wall residual stress drilling equipment and method |
| CN108858483A (en) * | 2018-06-28 | 2018-11-23 | 安徽省欧球信息技术有限公司 | A kind of efficient furniture processing plank drilling equipment |
| CN109175433A (en) * | 2018-10-22 | 2019-01-11 | 哈尔滨工程大学 | It is a kind of to turn to churn with lifting structure |
| CN109333083A (en) * | 2018-08-22 | 2019-02-15 | 四川大学 | A kind of residual stress detection auxiliary device towards non-ferromagnetic part |
| CN111660377A (en) * | 2020-06-23 | 2020-09-15 | 刘杨 | Dull and stereotyped optional position radian line automatic measurement draws perforating device |
| CN114700526A (en) * | 2022-06-06 | 2022-07-05 | 徐州中车轨道装备有限公司 | Perforating device is used in processing of track traffic braking system altitude valve |
| CN117226142A (en) * | 2023-11-14 | 2023-12-15 | 湘潭永达机械制造股份有限公司 | Major diameter shield body processing equipment |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108168755A (en) * | 2017-12-08 | 2018-06-15 | 燕山大学 | A kind of detection inside pipe wall residual stress drilling equipment and method |
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| CN108858483A (en) * | 2018-06-28 | 2018-11-23 | 安徽省欧球信息技术有限公司 | A kind of efficient furniture processing plank drilling equipment |
| CN109333083A (en) * | 2018-08-22 | 2019-02-15 | 四川大学 | A kind of residual stress detection auxiliary device towards non-ferromagnetic part |
| CN109333083B (en) * | 2018-08-22 | 2023-10-03 | 四川大学 | Residual stress detection auxiliary device for non-ferromagnetic parts |
| CN109175433A (en) * | 2018-10-22 | 2019-01-11 | 哈尔滨工程大学 | It is a kind of to turn to churn with lifting structure |
| CN111660377A (en) * | 2020-06-23 | 2020-09-15 | 刘杨 | Dull and stereotyped optional position radian line automatic measurement draws perforating device |
| CN114700526A (en) * | 2022-06-06 | 2022-07-05 | 徐州中车轨道装备有限公司 | Perforating device is used in processing of track traffic braking system altitude valve |
| CN117226142A (en) * | 2023-11-14 | 2023-12-15 | 湘潭永达机械制造股份有限公司 | Major diameter shield body processing equipment |
| CN117226142B (en) * | 2023-11-14 | 2024-01-16 | 湘潭永达机械制造股份有限公司 | Major diameter shield body processing equipment |
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| CN107252904B (en) | 2019-01-01 |
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