CN109954907A - Cylinder body class inner walls of deep holes radial bore tooling - Google Patents
Cylinder body class inner walls of deep holes radial bore tooling Download PDFInfo
- Publication number
- CN109954907A CN109954907A CN201910406647.7A CN201910406647A CN109954907A CN 109954907 A CN109954907 A CN 109954907A CN 201910406647 A CN201910406647 A CN 201910406647A CN 109954907 A CN109954907 A CN 109954907A
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- China
- Prior art keywords
- hole
- main shaft
- cross bar
- ball bearing
- socketed
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
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- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims abstract description 17
- 238000005553 drilling Methods 0.000 claims description 15
- 230000006835 compression Effects 0.000 claims description 5
- 238000007906 compression Methods 0.000 claims description 5
- 230000037452 priming Effects 0.000 claims description 4
- 238000000034 method Methods 0.000 description 6
- 230000005540 biological transmission Effects 0.000 description 5
- 230000007246 mechanism Effects 0.000 description 3
- 239000007787 solid Substances 0.000 description 3
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 238000009760 electrical discharge machining Methods 0.000 description 2
- 230000001050 lubricating effect Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000004381 surface treatment Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B41/00—Boring or drilling machines or devices specially adapted for particular work; Accessories specially adapted therefor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q5/00—Driving or feeding mechanisms; Control arrangements therefor
- B23Q5/02—Driving main working members
- B23Q5/04—Driving main working members rotary shafts, e.g. working-spindles
- B23Q5/10—Driving main working members rotary shafts, e.g. working-spindles driven essentially by electrical means
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q5/00—Driving or feeding mechanisms; Control arrangements therefor
- B23Q5/22—Feeding members carrying tools or work
- B23Q5/34—Feeding other members supporting tools or work, e.g. saddles, tool-slides, through mechanical transmission
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Drilling And Boring (AREA)
Abstract
The invention discloses a kind of cylinder body class inner walls of deep holes radial bore toolings, including pedestal, bracket, power transmissioning part and cross bar portion, cross bar portion includes cross bar shell, power transmissioning part includes extension bar, connector sleeve and main shaft, extension bar is connect with connector sleeve, raised block is provided in the middle part of main shaft, connector sleeve is socketed in the upper outside of main shaft, main shaft is fixedly connected with connector sleeve, the first thrust ball bearing is socketed on main shaft, door is provided between first thrust ball bearing and raised block, main shaft is socketed with driving gear on lower part, the lower part of main shaft is socketed with the second thrust ball bearing, cross bar shell is provided with several driven gears in lateral part, wherein there is a driven gear to be meshed with driving gear, driven gear is meshed two-by-two, a driven gear farthest from driving gear offers first through hole in center, first is logical The diameter in hole linearly becomes larger from top to bottom, is provided with drill bit in first through hole, and tool structure of the invention is simple and long service life.
Description
Technical field
The invention belongs to technical fields of mechanical processing, and in particular to a kind of cylinder body class inner walls of deep holes radial bore tooling.
Background technique
Also relatively difficult for the processing of radial blind holes or through-hole on inboard wall of cylinder block at present, blind hole is mainly using by outer
The method that weldering is blocked up after the open processing in side carries out, and can also be carried out using the methods of electrical discharge machining, but electrical discharge machining etc. is deposited
In low efficiency, the limitations such as low precision are processed more difficult when aperture is smaller.And for the processing of through-hole, from outside
To internal drilling it is difficult to ensure that the surface requirements of outer wall of cylinder block, need to carry out cumbersome surface treatment again to can be only achieved requirement.
Notification number is that the Chinese patent of 108098425 A of CN discloses a kind of cylinder body class inner walls of deep holes radial bore equipment,
Including driving motor, pedestal, cross bar portion, bit head and for push drill bit feed hand feeding mechanism, driving motor setting
In the side of pedestal, the motor shaft of driving motor connects horizontal one end of the rod by shaft coupling, and the another of pedestal is arranged in cross bar portion
The other end of side, cross bar portion connects bit head；Hand feeding mechanism includes positioned at the manual components in cross bar portion and positioned at bit head
Execution unit；Cross bar portion includes the hollow cross bar that one end has flange, and transmission is arranged in flanged joint pedestal in hollow cross bar
Axis, the both ends of transmission shaft are rotatably supported on hollow cross bar, and the right end of transmission shaft is connected by key shaft coupling, a left side for transmission shaft
End setting drive bevel gear；Bit head includes drill bit shell, and the right end of drill bit shell connects the other end of hollow cross bar；In drill bit
The right end indent of shell is provided with the aperture for accommodating drive bevel gear, be provided in drill bit shell with outside drive bevel gear
The driven wheel of differential of engagement, in fixing axle, fixing axle interference is arranged in drill bit shell first perpendicular driven wheel of differential empty set
Into blind hole, the axis of the axis and drill bit shell of fixing axle is vertically arranged；In fixing axle empty set, the first roller gear is set, the
One roller gear and driven wheel of differential are integrated composition duplicate gear；It is provided in drill bit shell and is nibbled with outside the first roller gear
The intermediate gear of conjunction, intermediate gear empty set is on jackshaft, in the first vertical hole that jackshaft interference is arranged in drill bit shell,
The axis of jackshaft and the axis of drill bit shell are vertically arranged；Second with intermediate gear external toothing is provided in drill bit shell
Roller gear, the second roller gear connect firmly on the top of drill bit, in the second vertical hole that drill bit is rotatably arranged in drill bit shell
And drill bit can be slided up and down along the second vertical hole, the axis of drill bit and the axis of drill bit shell are vertically arranged hand feeding mechanism
Manual components include push rod, push rod is slidably arranged in the sliding slot of hollow cross bar outer surface setting and push rod one end stretch out it is hollow
Cross bar protrudes into bit head driving execution unit movement, and sliding slot is arranged along hollow cross bar length direction；Close to method on hollow cross bar
Plane is arranged in indent on the outer surface at end where blue, and plane is coplanar with the slot bottom of sliding slot；In plane position on hollow cross bar
Place is across gate control stick, and two installation ends of gate control stick pass through pin shaft and are rotatably arranged on hollow cross bar, in gate
On control stick empty set the push plate for pushing push rod to move along the chute.The structure of the equipment is simple and convenient to operate, but due to this
Using individual motor in equipment, need to prepare more set equipment, higher cost for the cylinder body of different size, and use cone
Gear provides power source, and the service life of bevel gear is shorter.
Summary of the invention
It is an object of the invention to overcome disadvantages mentioned above existing in the prior art, a kind of cylinder body class inner walls of deep holes diameter is provided
To drilling tool, which is directly installed on drilling machine and uses, and directly provides power source, and the engagement essence of spur gear by drilling machine
Degree height, long service life.
To achieve the goals above, The technical solution adopted by the invention is as follows: include pedestal, bracket, power transmissioning part and
Cross bar portion, bracket are fixed at one end of pedestal, and cross bar portion includes cross bar shell, and cross bar shell is in horizontal positioned T font,
Power transmissioning part includes extension bar, connector sleeve and main shaft, and extension bar is connect with drilling machine, and extension bar is connect with connector sleeve, setting in the middle part of main shaft
Have raised block, connector sleeve is socketed in the upper outside of main shaft and is resisted against the side of raised block, main shaft by key with connect
Set is fixedly connected, and main shaft is socketed with the first thrust ball bearing, the first thrust ball bearing and protrusion on the other side of raised block
It is provided with door between block, driving gear is connected to by key fixing sleeve on main shaft lower part, the lower part of main shaft is socketed with second and pushes away
Power ball bearing is provided with bushing between driving gear and the first thrust ball bearing and the second thrust ball bearing, cross bar shell
Longitudinal portion is socketed on the outside of main shaft and abuts against the first thrust ball bearing and the second thrust ball bearing, and the lower end of main shaft is provided with
Nut is fixed, and cross bar shell is provided with several driven gears in lateral part, wherein having a driven gear and driving tooth
Wheel is meshed, and driven gear is meshed two-by-two, and a driven gear farthest from driving gear offers the in center
One through-hole, the diameter of first through hole linearly become larger from top to bottom, and drill bit is provided in first through hole, and being provided in bracket can prop up
Make the slide plate moved up and down vertically in frame, cross bar shell longitudinal portion is fixedly installed shifting on the side of not set lateral part
Moving axis, the second lateral through-hole is provided in slide plate, and shifting axle is through slide plate and solid by nut and slide plate by the second through-hole
Fixed connection, slide plate are provided with longitudinal third through-hole below shifting axle, are provided with longitudinal fourth hole in pedestal, and the 4th
The center line of through-hole and third through-hole is harmonious, and guide post is provided in third through-hole, and guide post extends downward into fourth hole, slide plate
Spring is socketed on the outside of guide post between pedestal.
In the present invention, further, the top of slide plate is provided with the fifth hole with the perforation of the second through-hole in the longitudinal direction,
Priming cup is provided in fifth hole.
In the present invention, further, slide plate horizontally offers the 6th through-hole with fifth hole perforation, cross bar shell
Body horizontally offers the 7th through-hole being connected to the 6th through-hole, and the 7th through-hole on the corresponding position of bushing by opening up
There is the 8th through-hole to realize the connection with main shaft, is improved service life by oil injecting lubricating.
In the present invention, it is preferred to, extension bar is connect with connector sleeve by pin shaft, and extension bar more has with connector sleeve split-type design
Conducive to the maintenance in use process.
In the present invention, further, cross bar shell includes two shell pairings of symmetrical configuration, and two shells are respectively
Upper housing is fixedly connected with lower case and by pin.
In the present invention, it is preferred to, spring is compression spring.
It is used the beneficial effects of the present invention are: tooling is directly installed on drilling machine, directly provides power source, root by drilling machine
The cylinder body to different size can be realized according to the tooling of the position production different size of the size and hole to be processed of cylinder body
Carry out inner wall deep hole machining, structure is simple and long service life.
Detailed description of the invention
In order to illustrate more clearly of the technical solution in the present invention, below to attached drawing and attached used in embodiment description
Icon is denoted as simply introducing.
Fig. 1 is main view of the invention.
Fig. 2 is left view of the invention.
Fig. 3 is top view of the invention.
Fig. 4 is partial enlarged view of the invention.
Description of symbols: 1- pedestal, 2- bracket, 3- power transmissioning part, 4- cross bar portion, 5- cross bar shell, 6- extension bar, 7-
Connector sleeve, 8- main shaft, 9- protrusion block, the first thrust ball bearing of 11-, 12- door, 13- driving gear, the second thrust ball of 14-
Bearing, 15- driven gear, 16- first through hole, 17- drill bit, 18- slide plate, 19- shifting axle, the second through-hole of 20-, 21- third are logical
Hole, 22- fourth hole, 23- guide post, 24- compression spring, 25- fifth hole, 26- priming cup, the 6th through-hole of 27-, 28- the 7th
Through-hole, the 8th through-hole of 29-.
Specific embodiment
In order to make the objectives, technical solutions, and advantages of the present invention clearer, (root with reference to the accompanying drawings and embodiments
According to embodiment), the present invention will be described in further detail.It should be appreciated that specific embodiment described herein is only used to
It explains the present invention, is not intended to limit the present invention.
Referring to Fig. 1, in embodiments of the present invention, including pedestal 1, bracket 2, power transmissioning part 3 and cross bar portion 4, bracket 2 are solid
One end of pedestal 1 is set calmly, and cross bar portion 4 includes cross bar shell 5, and cross bar shell 5 is in horizontal positioned T font, power transmission
Portion 3 includes extension bar 6, connector sleeve 7 and main shaft 8, and extension bar 6 is connect with drilling machine, and extension bar 6 is connect by pin shaft with connector sleeve 7, main shaft 8
Middle part is provided with raised block 9, and connector sleeve 7 is socketed in the upper outside of main shaft 8 and is resisted against the side of raised block 9, main shaft 8
It being fixedly connected by key with connector sleeve 7, main shaft 8 is socketed with the first thrust ball bearing 11 on the other side of raised block 9, and first
It is provided with door 12 between thrust ball bearing 11 and raised block 9, driving gear is connected to by key fixing sleeve on 8 lower part of main shaft
13, the lower part of main shaft 8 is socketed with the second thrust ball bearing 14, driving gear 13 and the first thrust ball bearing 11 and the second thrust ball
Bushing is provided between bearing 14, the longitudinal portion of cross bar shell 5 is socketed in 8 outside of main shaft and abuts against the first thrust ball axis
11 and second thrust ball bearing 14 are held, the lower end of main shaft 8 is provided with nut and fixes, and cross bar shell 5 is provided in lateral part
Six driven gears 15, wherein there is a driven gear 15 to be meshed with driving gear 13, driven gear 15 is meshed two-by-two,
A driven gear 15 farthest from driving gear 13 offers first through hole 16 in center, the diameter of first through hole 16 from
Become larger up to lower linear, drill bit 17 is provided in first through hole 16, being provided in bracket 2 can make to move down on vertical in bracket 2
Dynamic slide plate 18,5 longitudinal portion of cross bar shell are fixedly installed shifting axle 19, slide plate 18 on the side of not set lateral part
It is inside provided with the second lateral through-hole 20, shifting axle 19 is through slide plate 18 and solid by nut and slide plate 18 by the second through-hole 20
Fixed connection, slide plate 18 are provided with longitudinal third through-hole 21 in the lower section of shifting axle 19, are provided with longitudinal four-way in pedestal 1
Hole 22, fourth hole 22 and the center line of third through-hole 21 are harmonious, and are provided with guide post 23 in third through-hole 21, and guide post 23 is to downward
It extends in fourth hole 22, is socketed with compression spring 24 in the outside of guide post 23 between slide plate 18 and pedestal 2.
The top of slide plate 18 is provided with the fifth hole 25 with the perforation of the second through-hole 20 in the longitudinal direction, sets in fifth hole 25
It is equipped with priming cup 26.
Slide plate 18 horizontally offers the 6th through-hole 27 penetrated through with fifth hole 25, and cross bar shell 5 is horizontally opened
Equipped with the 7th through-hole 28 being connected to the 6th through-hole 27, and the 7th through-hole 28 is by offering the 8th on the corresponding position of bushing
Through-hole 29 is improved service life to realize the connection with main shaft 8 by oil injecting lubricating.
Cross bar shell 5 includes two shell pairings of symmetrical configuration, and two shells are respectively upper housing and lower case and lead to
Pin is crossed to be fixedly connected.
Working principle: extension bar 6 is fixed on the position that drilling machine originally installed drill bit, and the rotating electric machine in drilling machine drives extension bar
6 rotations then drive all driven gears 15 to rotate, realize the rotation of drill bit so that connector sleeve 7 and main shaft 8 be driven to rotate, when
When the power source for realizing that former drill bit moves downward in drilling machine is opened, extension bar 6, which is driven, to be moved synchronously, and connector sleeve 7 and main shaft 8 move
To drive cross bar portion 4 to move, shifting axle 19 oppresses the slide downward in bracket 2 of slide plate 18, when completing the displacement of drilling, stops
The only power source of drilling machine moved downward, cross bar portion 4 resets under the action of compression spring 24, so as to what will be completed the process
Cylinder body takes out from drilling machine and continues to carry out radial bore to next cylinder body.
It should be pointed out that the embodiment of the present invention is described above.However, art technology it is to be understood by the skilled artisans that
The present invention is not limited to the above embodiments, merely illustrates the principles of the invention described in above-described embodiment, is not departing from this
The present invention can also be there are many changes and improvements under the premise of invention scope, these changes and improvements both fall within claimed hair
In bright range.
Claims (6)
1. a kind of cylinder body class inner walls of deep holes radial bore tooling, including pedestal, bracket, power transmissioning part and cross bar portion, feature
Be: the bracket is fixed at one end of pedestal, and the cross bar portion includes cross bar shell, and the cross bar shell is put in level
The T font set, the power transmissioning part include extension bar, connector sleeve and main shaft, and the extension bar is connect with drilling machine, the extension bar and company
Female connector connection, the main shaft middle part are provided with raised block, and the connector sleeve is socketed in the upper outside of main shaft and is resisted against convex
The side of block is played, the main shaft is fixedly connected by key with connector sleeve, and the main shaft is socketed on the other side of raised block
There is the first thrust ball bearing, is provided with door between first thrust ball bearing and raised block, passes through on the main shaft lower part
Key fixing sleeve is connected to driving gear, and the lower part of the main shaft is socketed with the second thrust ball bearing, and the driving gear is pushed away with first
Bushing is provided between power ball bearing and the second thrust ball bearing, the longitudinal portion of the cross bar shell is socketed on the outside of main shaft
And the first thrust ball bearing and the second thrust ball bearing are abutted against, the lower end of the main shaft is provided with nut and fixes, the cross bar
Shell is provided with several driven gears in lateral part, wherein there is the driven gear to be meshed with driving gear,
The driven gear is meshed two-by-two, and a driven gear farthest from driving gear offers first in center
Through-hole, the diameter of the first through hole linearly become larger from top to bottom, and drill bit is provided in the first through hole, is set in the bracket
The slide plate moved up and down vertically can be made in bracket by being equipped with, side of the cross bar shell longitudinal portion in not set lateral part
On be fixedly installed shifting axle, the second lateral through-hole is provided in the slide plate, the shifting axle is run through by the second through-hole
Slide plate is simultaneously fixedly connected by nut with slide plate, and the slide plate is provided with longitudinal third through-hole below shifting axle, described
It is provided with longitudinal fourth hole in pedestal, the center line of the fourth hole and third through-hole is harmonious, in the third through-hole
It is provided with guide post, the guide post extends downward into fourth hole, is socketed on the outside of guide post between the slide plate and pedestal
Spring.
2. a kind of cylinder body class inner walls of deep holes radial bore tooling according to claim 1, it is characterised in that: the slide plate
Top is provided with the fifth hole with the perforation of the second through-hole in the longitudinal direction, is provided with priming cup in the fifth hole.
3. a kind of cylinder body class inner walls of deep holes radial bore tooling according to claim 2, it is characterised in that: the slide plate exists
The 6th through-hole with fifth hole perforation is offered in transverse direction, the cross bar shell is horizontally offered to be connected to the 6th through-hole
The 7th through-hole, and the 7th through-hole is realized and the company of main shaft by offering the 8th through-hole on the corresponding position of bushing
It is logical.
4. a kind of cylinder body class inner walls of deep holes radial bore tooling according to claim 1, it is characterised in that: the extension bar with
Connector sleeve is connected by pin shaft.
5. a kind of cylinder body class inner walls of deep holes radial bore tooling according to claim 1, it is characterised in that: the cross bar shell
Body includes two shell pairings of symmetrical configuration, and two shells are respectively that upper housing is fixedly connected with lower case and by pin.
6. a kind of cylinder body class inner walls of deep holes radial bore tooling according to claim 1, it is characterised in that: the spring is
Compression spring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910406647.7A CN109954907B (en) | 2019-05-16 | 2019-05-16 | Radial drilling tool for inner wall of cylinder body type deep hole |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910406647.7A CN109954907B (en) | 2019-05-16 | 2019-05-16 | Radial drilling tool for inner wall of cylinder body type deep hole |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109954907A true CN109954907A (en) | 2019-07-02 |
| CN109954907B CN109954907B (en) | 2024-01-23 |
Family
ID=67027211
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910406647.7A Active CN109954907B (en) | 2019-05-16 | 2019-05-16 | Radial drilling tool for inner wall of cylinder body type deep hole |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109954907B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110405256A (en) * | 2019-07-12 | 2019-11-05 | 江苏长龄液压股份有限公司 | A kind of center-rotary joint cross drilling attachment and technique based on deep hole positioning |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1283730A (en) * | 1968-10-31 | 1972-08-02 | Rockwell Mfg Co | Portable power tool |
| EP0430228A2 (en) * | 1989-11-30 | 1991-06-05 | PRIESS, HORSTMANN & CO. MASCHINENBAU GMBH & CO. KG | Drilling machine |
| CN1470352A (en) * | 2002-07-23 | 2004-01-28 | 张国成 | Method for producing porous water pipe for fire extinguishing |
| CN105195782A (en) * | 2015-09-10 | 2015-12-30 | 芜湖精钻机电技术有限公司 | Steel tube drilling device provided with multiple drill heads |
| CN107952979A (en) * | 2018-01-17 | 2018-04-24 | 南京信息职业技术学院 | Radial blind hole drill for inner wall of cylinder |
| CN108637306A (en) * | 2018-05-11 | 2018-10-12 | 刘淑音 | A kind of building board machining equipment |
-
2019
- 2019-05-16 CN CN201910406647.7A patent/CN109954907B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1283730A (en) * | 1968-10-31 | 1972-08-02 | Rockwell Mfg Co | Portable power tool |
| EP0430228A2 (en) * | 1989-11-30 | 1991-06-05 | PRIESS, HORSTMANN & CO. MASCHINENBAU GMBH & CO. KG | Drilling machine |
| CN1470352A (en) * | 2002-07-23 | 2004-01-28 | 张国成 | Method for producing porous water pipe for fire extinguishing |
| CN105195782A (en) * | 2015-09-10 | 2015-12-30 | 芜湖精钻机电技术有限公司 | Steel tube drilling device provided with multiple drill heads |
| CN107952979A (en) * | 2018-01-17 | 2018-04-24 | 南京信息职业技术学院 | Radial blind hole drill for inner wall of cylinder |
| CN108637306A (en) * | 2018-05-11 | 2018-10-12 | 刘淑音 | A kind of building board machining equipment |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110405256A (en) * | 2019-07-12 | 2019-11-05 | 江苏长龄液压股份有限公司 | A kind of center-rotary joint cross drilling attachment and technique based on deep hole positioning |
| CN110405256B (en) * | 2019-07-12 | 2024-04-16 | 江苏长龄液压股份有限公司 | Center rotary joint transverse drilling fixture and process based on deep hole positioning |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109954907B (en) | 2024-01-23 |
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