CN208467335U - The adaptive brace type borer of the processing abdomen formula deep hole of cutter expandable - Google Patents
The adaptive brace type borer of the processing abdomen formula deep hole of cutter expandable Download PDFInfo
- Publication number
- CN208467335U CN208467335U CN201821118587.6U CN201821118587U CN208467335U CN 208467335 U CN208467335 U CN 208467335U CN 201821118587 U CN201821118587 U CN 201821118587U CN 208467335 U CN208467335 U CN 208467335U
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- Prior art keywords
- outer sleeve
- push
- cutter
- pull rod
- knife handle
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Abstract
The utility model discloses a kind of adaptive brace type borer of the processing abdomen formula deep hole of cutter expandable, including outer sleeve and cutter, the central through hole rear portion of outer sleeve is equipped with the push-pull rod for the coaxial line that can be slided along hub internal bore, cutter includes knife handle and blade, knife handle and blade are radially arranged along outer sleeve, blade is removably mounted to the outer end of knife handle, the excircle of the outer sleeve is axially spaced to provide the supporter of support equipped with multiple groups for cutter, push-pull rod front end is connected with the sliding block for being used to support knife handle and being slidably connected with central through hole front, outer sleeve is equipped with for cutter along the side tool hole that outer sleeve moves radially, knife handle with the sliding block side is oblique is slidably connected, during sliding block is moved axially along outer sleeve, cutter is moved radially along the side tool hole of outer sleeve.The adaptive brace type borer of the utility model, structure is relatively easy, and supporter can provide support for blade, can preferably guarantee machining accuracy.
Description
Technical field
The utility model relates to Deep-Hole Drilling Technology field, more specifically a kind of processing abdomen of cutter expandable
The adaptive brace type borer of formula deep hole.
Background technique
Under certain special operating conditions, mid diameter big inner hole class axis part small using both ends diameter is needed, this
Kind has both ends diameter small, and the big inner hole of mid diameter is known as gastropore, and the deep hole machining of part gastropore always is a problem.No
All there are many problems by the process of the blade for being processing, or processing to need to solve.And carry out such part gastropore
Processing, it is desirable that blade has to enter into inside parts, and blade is able to carry out at the uniform velocity stable feeding axially and radially, Cai Nengshi
The processing in existing this type face.
Chinese utility model patent CN101786173A discloses a kind of telescopic double-edged deep-hole boring cutter, CN106312107A
A kind of retractable blade for the processing of numerically controlled lathe larger diameter internal bore is disclosed, above-mentioned two patent is all by changing cutter head
Angle realize diameter of bore variation processing.But telescopic double-edged deep-hole boring cutter disclosed in patent CN101786173A,
For larger diameter internal bore processing when, need longer cutter head to be just able to satisfy the needs of processing, and long cutter head is steady in processing
It is qualitative very poor, it is difficult to guarantee machining accuracy；Retractable blade disclosed in patent CN106312107A, after knife bar protrudes into, blade
Neighbouring unsupported problem, it is difficult to guarantee machining accuracy.
Chinese utility model patent CN102416484A discloses adjustable boring cutter, is that cutter head can be adjusted in one kind
The debugging formula boring cutter of overhang, this boring cutter cannot achieve stable support, and furthermore knife handle is fixed only with unilateral side, will necessarily generate
The offset of point of a knife, influences machining accuracy.
Chinese utility model patent CN101704118A discloses a kind of Stretchable boring head, which is passed by worm and gear
It moves to change the transmission direction for adjusting power, convenient for installation of the boring head on boring bar.Although Worm Wheel System can be accurate
Control the overhang of cutter head, but boring head installing on boring bar using screw, it is difficult to guarantee installation accuracy, also have to machining accuracy
It influences.
Chinese utility model patent CN101961793A discloses a kind of telescopic adaptive brace type borer of point of a knife,
CN105598480A discloses a kind of uniaxial type hand deep-hole boring cutter device, above two device can to variable diameters inner hole into
Row processing, but the complicated integral structure of two kinds of devices, the composition error of processing and fabricating are difficult to ensure.
Utility model content
The purpose of this utility model is to provide a kind of adaptive brace type borer of cutter expandable, structures
It is relatively easy, adaptive support can be provided for blade, can preferably guarantee machining accuracy.
To achieve the above objectives, the present invention adopts the following technical solutions:
Cutter expandable processing abdomen formula deep hole adaptive brace type borer, including outer sleeve, cutter and
Handwheel on rear side of outer sleeve, the central through hole rear portion of outer sleeve are equipped with the push-and-pull for the coaxial line that can be slided along hub internal bore
Bar, cutter include knife handle and blade, and knife handle and blade radially arrange that blade is mounted on the outer end of knife handle, described outer along outer sleeve
The excircle of sleeve is axially spaced to provide the supporter of support equipped with multiple groups for cutter, and push-pull rod front end, which is connected with, to be used to support
Knife handle and the sliding block being slidably connected with central through hole front, outer sleeve are equipped with the side tool moved radially for cutter along outer sleeve
Hole, knife handle with the sliding block side is oblique is slidably connected, during sliding block is moved axially along outer sleeve, cutter is along outer sleeve
Side tool hole moves radially.
The sliding block includes promotion section, changeover portion and the linkage section being sequentially arranged from front to back, and the promotion section side is set
There is oblique sliding slot, knife handle is equipped with the protrusion cooperated with sliding slot, and the linkage section rear end is fixedly connected with push-pull rod front end.
The linkage section pushes section plate-like and extends along outer sleeve centerline direction, and the push-pull rod front end is set
Have and is connected with the slide block the card slot that section rear end matches, the center of the contact surface and outer sleeve of the slipper push section and knife handle
Line is overlapped；The sliding slot is dovetail groove.
The push-pull rod front end is fixed with the linkage section rear end by straight pin, straight pin and the linkage section
Side is vertical, and the push-pull rod is equipped with graduation mark close to one end of handwheel.
Every group of supporter includes multiple support components around outer sleeve axis uniform intervals arrangement.
The support component includes the contact block, piezoelectrics and compressed spring being sequentially arranged from outside to inside, compressed spring edge
Outer sleeve radially arrange, between contact block and piezoelectrics be equipped with upper backup pad, between piezoelectrics and compressed spring be equipped with diaphragm and
Lower supporting plate, diaphragm are located above lower supporting plate and are integrated with lower supporting plate consolidation, and piezoelectrics directly connect with diaphragm upper surface
Touching, compressed spring are directly contacted with lower supporting plate lower surface.
The outer sleeve excircle is arranged with the garter springs for fixing contact block, and garter springs are coaxial with outer sleeve
Line, every group of supporter correspond at least one garter springs, and contact block outer peripheral surface is equipped with the first groove corresponding with garter springs；
The contact block, piezoelectrics and compressed spring are arranged at support component interior of shell, and the support component shell passes through screw
It is fixed on outer sleeve, outer sleeve is equipped with keyway compatible with the support component shell；The diaphragm outer surface covering
Matcoveredn.
Between the outer sleeve and push-pull rod be equipped with guide frame, the guide frame include guide groove and with guide groove phase
Corresponding positioning pin, the guide groove are arranged on push-pull rod outer peripheral surface and are parallel to push-pull rod axial direction, and the positioning pin is along outer
Sleeve radially arranges and is threadedly coupled with outer sleeve that positioning pin inner end outer peripheral surface is abutted with guide groove side.
Be additionally provided on the outer sleeve it is multiple for adjust push-pull rod axial line and uniform intervals be arranged in outer sleeve circumferential direction
On adjusting bolt, adjust bolt along outer sleeve radially arrange.
The push-and-pull rod rear end is fixedly connected with the hand wheel by flat key and screw；The outer sleeve front end is equipped with for sealing
The end cap of stifled central through hole.
The beneficial effects of the utility model are as follows:
One, the excircle of outer sleeve is axially spaced provides the supporter of support, push-pull rod front end equipped with multiple groups for cutter
It is connected with the sliding block for being used to support knife handle, outer sleeve is equipped with for blade along the side tool hole that outer sleeve moves radially, knife handle and institute
State that sliding block side is oblique to be slidably connected, during sliding block is moved axially along outer sleeve, by observation push-pull rod close to handwheel
The graduation mark of one end, blade can carry out accurately telescopic moving along the radial of outer sleeve, realize the processing of variable diameter deep hole, branch
Support body provides adaptive adjustable supports for blade, can preferably guarantee machining accuracy；
Two, support component includes contact block, piezoelectrics and compressed spring, can according to contact block abrasion loss and actually connect
The pressure signal received compensates contact block, and compressed spring can compensate the larger abrasion loss of contact block in time, works as pressure
After the decrement of contracting spring becomes minimum state, piezoelectrics obtain when inverse piezoelectric effect occurs for voltage from external electrical field and generate shape
Become, micro compensation can be carried out to contact block, realize and stablize support, guarantee machining accuracy；
Three, the promotion section side of sliding block is equipped with oblique dovetail chute, and the knife handle matched with oblique dovetail chute is equipped with
With the protrusion of dovetail chute cooperation, it is used to support knife handle and carries out Stable sliding convenient for blade；Utilize oblique dovetail chute and knife
The outer inclined-plane or outer inclined-plane that handle convex portion is in contact avoid blade and the knife handle position in stress from moving to realize that inclined-plane is self-locking
It is dynamic；
Four, the linkage section of sliding block, push section it is plate-like and along outer sleeve centerline direction extend, reduce sliding block with
The contact area of outer sleeve inner wall, reduces frictional resistance, reduces costs, and saves physical strength；Push-pull rod front end is equipped with and connects
The card slot that section rear end matches is connect, ensure that push-pull rod and linkage section connective stability；
Five, guide frame is equipped between outer sleeve and push-pull rod, it is straight that guide frame can be such that push-pull rod carries out along outer sleeve
Line is mobile, guarantees the mobile stability of push-pull rod；
Six, end cap can play dustproof effect and be easily installed disassembly.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model；
Fig. 2 is the top view of sliding block in Fig. 1；
Fig. 3 be in Fig. 1 along A-A to sectional view；
Fig. 4 be in Fig. 1 along B-B to sectional view；
Fig. 5 be in Fig. 1 along C-C to sectional view；
Fig. 6 be in Fig. 1 along D-D to sectional view；
Fig. 7 be in Fig. 1 along E-E to sectional view；
Fig. 8 be in Fig. 1 along F-F to sectional view；
Fig. 9 is the structural schematic diagram of support component in Fig. 1；
Figure 10 is the scale enlarged diagram in Fig. 1 on push-pull rod.
Specific embodiment
The embodiments of the present invention is illustrated by particular specific embodiment below, those skilled in the art can be by this
Content disclosed by specification understands other advantages and effect of the utility model easily.It should be clear that this specification attached drawing is drawn
Structure, ratio, size for showing etc., only to cooperate the revealed content of specification, for those skilled in the art's understanding
With reading, enforceable qualifications are not intended to limit the utility model, therefore do not have technical essential meaning, any structure
Modification, the change of proportionate relationship or the adjustment of size, do not influencing the effect of the utility model can be generated and can reach
Purpose under, should all still fall in the range of the revealed technology contents of the utility model can cover.Meanwhile institute in this specification
Such as "upper" of reference, "lower", "left", "right", " centre " and " one " term, be merely convenient to the clear of narration, Er Feiyong
To limit the enforceable range of the utility model, relativeness is altered or modified, under the content of no substantial changes in technology, when
Also it is considered as the enforceable scope of the utility model.
As shown in Figures 1 to 10, the adaptive brace type boring dress of the processing abdomen formula deep hole of a kind of cutter expandable
It sets, including outer sleeve 4, cutter and handwheel 10 positioned at the rear side of outer sleeve 4, cutter includes knife handle 3 and blade 23, knife handle 3 and knife
For piece 23 along the radial arrangement of outer sleeve 4, blade 23 is removably mounted to the outer end of knife handle 3.The excircle edge of the outer sleeve 4
Axially spaced-apart is equipped with multiple groups and provides the supporter of support for cutter, and 4 central through hole rear portion of outer sleeve slidably connects coaxial line
Push-pull rod 8,8 front end of push-pull rod are connected with the sliding block 2 for being used to support knife handle 3 and being slidably connected with central through hole front, outer sleeve 4
It is equipped with for knife handle 3 and blade 23 along the side tool hole 17 that outer sleeve 4 moves radially, knife handle 3 and the oblique sliding in 2 side of sliding block
Connection, during sliding block 2 is moved axially along outer sleeve 4, blade 23, knife handle 3 are moved radially along outer sleeve 4.Support component 5 is
Knife handle 3 and blade 23 provide support, so that the borer can preferably guarantee machining accuracy at work.
The sliding block 2 includes promotion section 201, changeover portion 202 and the linkage section 203 being sequentially arranged from front to back, described to push away
Dynamic 201 side of section is equipped with oblique sliding slot 18, and the cooperative end part of knife handle 3 is equipped with the protrusion cooperated with sliding slot 18, the linkage section 203
Rear end is fixedly connected with 8 front end of push-pull rod.
The linkage section 203 pushes section 201 plate-like and extends along 4 centerline direction of outer sleeve, the plate
Structure reduces the contact area of sliding block 2 Yu 4 inner wall of outer sleeve, reduces frictional resistance, reduces costs, saves physical strength.
8 front end of push-pull rod is equipped with the card slot matched with 203 rear end of linkage section, the contact for pushing section 201 and knife handle 3
Face is overlapped with the center line of outer sleeve 4, ensure that push-pull rod 8 and 203 connective stability of linkage section.The sliding slot 18 is dovetail
Slot.
8 front end of push-pull rod is fixed with 203 rear end of linkage section by straight pin 6, straight pin 6 and the company
The side for connecing section 203 is vertical, and the push-pull rod is equipped with graduation mark 25 close to one end of handwheel.
Every group of supporter includes multiple support components 5 around 4 axis uniform intervals of outer sleeve arrangement.
The support component 5 includes contact block 14, piezoelectrics 15 and the compressed spring 12 being sequentially arranged from outside to inside, compression
Along the radial arrangement of outer sleeve 4, contact block 14, piezoelectrics 15 and compressed spring 12 are arranged in support component shell 11 spring 12
Portion is equipped with upper backup pad 13 between contact block 14 and piezoelectrics 15,16 He of diaphragm is equipped between piezoelectrics 15 and compressed spring 12
Lower supporting plate, diaphragm 16 are located above lower supporting plate and are integrated with lower supporting plate consolidation, piezoelectrics 15 and 16 upper surface of diaphragm
It directly contacts, compressed spring 12 is directly contacted with lower supporting plate lower surface.4 excircle of outer sleeve is arranged with to be connect for fixation
The garter springs 19 of contact block 14, garter springs 19 and 4 coaxial line of outer sleeve, every group of supporter correspond at least one garter springs
19,14 outer peripheral surface of contact block is equipped with first groove corresponding with garter springs 19.Support component shell 11 is fixed by screw 9
On outer sleeve 4, outer sleeve 4 is equipped with keyway compatible with the support component shell 11；It covers 16 outer surface of diaphragm
It is stamped protective layer.In the borer of the utility model during deep hole processing, contact block 14 can be contacted with workpiece, for a long time
Abrasion is had using rear contact block 14, compressed spring 12 can compensate the larger abrasion loss of contact block 14 in time.Piezoelectrics 15
It is connected by the conducting wire 20 in spool 24 with extraneous control panel, after the decrement of compressed spring 12 becomes minimum state, i.e.,
When compressed spring 12 cannot carry out abrasion loss compensation to contact block 14, by controlling piezoelectrics 15 inverse pressure occurs for extraneous control panel
Electrical effect and generate deformation, and then micro compensation is carried out to impaired contact block 14, continues to realize stable support, guarantee processing essence
Degree.
Between the outer sleeve 4 and push-pull rod 8 be equipped with guide frame, the guide frame include guide groove 21 and with guiding
The corresponding positioning pin 22 of slot 21, the guide groove 21 are arranged on 8 outer peripheral surface of push-pull rod and are parallel to push-pull rod 8 axially, institute
Positioning pin 22 is stated along the radial arrangement of outer sleeve 4 and is threadedly coupled with outer sleeve 4,22 inner end outer peripheral surface of positioning pin and 21 side of guide groove
Face abuts.Guide frame can guarantee that push-pull rod 8 moves linearly along outer sleeve 4, ensure that the mobile stabilization of push-pull rod 8
Property.
It is additionally provided on the outer sleeve 4 multiple for adjusting 8 axial line of push-pull rod and uniform intervals are arranged in outer sleeve 4 weeks
Upward adjusting bolt 7 adjusts bolt 7 along the radial arrangement of outer sleeve 4.Adjust the adjustable push-pull rod 8 of bolt 7 and outer sleeve
The alignment of 4 axial line, and a degree of fixation is carried out to push-pull rod 8.
4 front end of outer sleeve is equipped with the end cap 1 for blocking central through hole, end cap 1 can play dustproof effect and
It is easily installed disassembly.8 rear end of push-pull rod is fixedly connected by flat key, screw with handwheel 10, the push-and-pull easy to remove of handwheel 10
Bar 8.
Specific work process is as follows:
When the workpiece for the gastropore that processing has diameter small mid diameter in both ends big, blade 23 is mounted on knife handle 3, boring
Turning device protrudes into pre-manufactured hole, pushes push-pull rod 8 to be moved along outer sleeve 4 is axial by handwheel 10, and then push sliding block 2
Mobile, knife handle 3 is slided along the oblique dovetail chute 18 on sliding block 2, realizes that blade 23 is moved along the radial expansion of outer sleeve 4.It should
First turn adjusts bolt 7 and positioning pin 22 before borer work, so that adjust bolt 7 and positioning pin 22 in suitable position, with
This guarantees the alignment of the axial line of push-pull rod 8 and outer sleeve 4.After the borer protrudes into pre-manufactured hole, according to processing
Requirement and push-pull rod 8 on graduation mark 25, pull handwheel 10, drive push-pull rod 8 axial movement, make stretching for 23 end of blade
Output meets the requirements.When borer work, oblique dovetail chute and knife handle 3 in the promotion section 201 of sliding block 2 can use
The outer inclined-plane 26 or outer inclined-plane 27 that convex portion is in contact realize that inclined-plane is self-locking, and the position of guarantee knife handle 3 and blade 23 is in stress
When do not move.When hole depth variation, the corresponding outer sleeve 4 of replacement and push-pull rod 8 can according to need.
The above embodiments are only illustrative of the principle and efficacy of the utility model, and not for limitation, this is practical new
Type.Any person skilled in the art can all carry out above-described embodiment under the spirit and scope without prejudice to the utility model
Modifications and changes.Therefore, such as those of ordinary skill in the art without departing from the revealed essence of the utility model
All equivalent modifications or change completed under mind and technical idea, should be covered by the claim of the utility model.
Claims (10)
1. the adaptive brace type borer of the processing abdomen formula deep hole of cutter expandable, including outer sleeve and cutter, outside
The central through hole rear portion of sleeve is equipped with the push-pull rod for the coaxial line that can be slided along hub internal bore, and cutter includes knife handle and blade, knife
Handle and blade radially arrange that blade is mounted on the outer end of knife handle, it is characterised in that: the excircle edge of the outer sleeve along outer sleeve
Axially spaced-apart is equipped with multiple groups and provides the supporter of support for cutter, and push-pull rod front end, which is connected with, to be used to support knife handle and lead to center
The sliding block that hole front is slidably connected, outer sleeve are equipped with for cutter along the side tool hole that outer sleeve moves radially, knife handle and the cunning
Block side is oblique to be slidably connected, and during sliding block is moved axially along outer sleeve, cutter is moved radially along the side tool hole of outer sleeve.
2. adaptive brace type borer according to claim 1, it is characterised in that: the sliding block includes from front to back
Promotion section, changeover portion and the linkage section being sequentially arranged, the promotion section side are equipped with oblique sliding slot, and knife handle is equipped with matches with sliding slot
The protrusion of conjunction, the linkage section rear end are fixedly connected with push-pull rod front end.
3. adaptive brace type borer according to claim 2, it is characterised in that: the linkage section pushes Duan Jun
Plate-like and extend along outer sleeve centerline direction, the push-pull rod front end is equipped with and is connected with the slide block a section rear end and matches
Card slot, the slipper push section is overlapped with the contact surface of knife handle with the center line of outer sleeve；The sliding slot is dovetail groove.
4. adaptive brace type borer according to claim 3, it is characterised in that: the push-pull rod front end with it is described
Linkage section rear end is fixed by straight pin, and straight pin is vertical with the side of the linkage section, and the push-pull rod is close to handwheel
One end be equipped with graduation mark.
5. adaptive brace type borer according to claim 1, it is characterised in that: every group of supporter includes multiple
Around the support component of outer sleeve axis uniform intervals arrangement.
6. adaptive brace type borer according to claim 5, it is characterised in that: the support component includes from outer
To interior contact block, piezoelectrics and the compressed spring being sequentially arranged, compressed spring is radially arranged along outer sleeve, contact block and piezoelectrics
Between be equipped with upper backup pad, between piezoelectrics and compressed spring be equipped with diaphragm and lower supporting plate, diaphragm be located at lower supporting plate top
And be integrated with lower supporting plate consolidation, piezoelectrics are directly contacted with diaphragm upper surface, and compressed spring and lower supporting plate lower surface are straight
Contact.
7. adaptive brace type borer according to claim 6, it is characterised in that: the outer sleeve excircle is arranged
There are the garter springs for fixing contact block, garter springs and outer sleeve coaxial line, every group of supporter corresponds at least one lock ring
Spring, contact block outer peripheral surface are equipped with the first groove corresponding with garter springs；The contact block, piezoelectrics and compressed spring are equal
Be arranged in support component interior of shell, the support component shell is fixed by screws on outer sleeve, outer sleeve be equipped with
The compatible keyway of the support component shell；The diaphragm outer surface covers matcoveredn.
8. adaptive brace type borer according to claim 1, it is characterised in that: the outer sleeve and push-pull rod it
Between be equipped with guide frame, the guide frame includes guide groove and positioning pin corresponding with guide groove, the guide groove setting
On push-pull rod outer peripheral surface and it is parallel to push-pull rod axial direction, the positioning pin is radially arranged along outer sleeve and connected with outer sleeve screw thread
It connects, positioning pin inner end outer peripheral surface is abutted with guide groove side.
9. adaptive brace type borer according to claim 8, it is characterised in that: be additionally provided on the outer sleeve more
A adjusting bolt for adjusting push-pull rod axial line and uniform intervals are arranged in outer sleeve circumferential direction adjusts bolt along housing
Barrel dliameter is to arrangement.
10. adaptive brace type borer according to claim 1, it is characterised in that: further include after being located at outer sleeve
The handwheel of side, the push-and-pull rod rear end are fixedly connected with the hand wheel by flat key and screw；The outer sleeve front end, which is equipped with, to be used for
Block the end cap of central through hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821118587.6U CN208467335U (en) | 2018-07-16 | 2018-07-16 | The adaptive brace type borer of the processing abdomen formula deep hole of cutter expandable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821118587.6U CN208467335U (en) | 2018-07-16 | 2018-07-16 | The adaptive brace type borer of the processing abdomen formula deep hole of cutter expandable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208467335U true CN208467335U (en) | 2019-02-05 |
Family
ID=65210757
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821118587.6U Withdrawn - After Issue CN208467335U (en) | 2018-07-16 | 2018-07-16 | The adaptive brace type borer of the processing abdomen formula deep hole of cutter expandable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208467335U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108672764A (en) * | 2018-07-16 | 2018-10-19 | 河南理工大学 | The adaptive brace type borer of the processing abdomen formula deep hole of cutter expandable |
| CN111054945A (en) * | 2019-12-18 | 2020-04-24 | 沈阳鼓风机集团核电泵业有限公司 | Grooving device for annular groove on inner wall of circular cavity |
| CN111496280A (en) * | 2020-05-31 | 2020-08-07 | 西安昂达机电科技有限公司 | Inner reaming boring cutter for processing deep hole |
-
2018
- 2018-07-16 CN CN201821118587.6U patent/CN208467335U/en not_active Withdrawn - After Issue
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108672764A (en) * | 2018-07-16 | 2018-10-19 | 河南理工大学 | The adaptive brace type borer of the processing abdomen formula deep hole of cutter expandable |
| CN111054945A (en) * | 2019-12-18 | 2020-04-24 | 沈阳鼓风机集团核电泵业有限公司 | Grooving device for annular groove on inner wall of circular cavity |
| CN111496280A (en) * | 2020-05-31 | 2020-08-07 | 西安昂达机电科技有限公司 | Inner reaming boring cutter for processing deep hole |
| CN111496280B (en) * | 2020-05-31 | 2024-05-14 | 西安昂达机电科技有限公司 | Inner reaming boring cutter for processing deep hole |
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| AV01 | Patent right actively abandoned |
Granted publication date: 20190205 Effective date of abandoning: 20230704 |
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| AV01 | Patent right actively abandoned |
Granted publication date: 20190205 Effective date of abandoning: 20230704 |
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| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |