CN107175581A - The honing method and grinding equipment of engine cylinder hole - Google Patents
The honing method and grinding equipment of engine cylinder hole Download PDFInfo
- Publication number
- CN107175581A CN107175581A CN201710604124.4A CN201710604124A CN107175581A CN 107175581 A CN107175581 A CN 107175581A CN 201710604124 A CN201710604124 A CN 201710604124A CN 107175581 A CN107175581 A CN 107175581A
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- China
- Prior art keywords
- honing
- cylinder holes
- knife
- honing knife
- processed
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B33/00—Honing machines or devices; Accessories therefor
- B24B33/02—Honing machines or devices; Accessories therefor designed for working internal surfaces of revolution, e.g. of cylindrical or conical shapes
Abstract
The invention discloses a kind of honing method of engine cylinder hole, including step：Obtain the range L that cylinder holes to be processed can be moved for honing knifemax；Set the safe distance D of honing；According to formula L=LmaxD calculate honing knife process cylinder holes to be processed when can move apart from L, the honing knife reaches reversal point and commutated after the initial manufacture face displacement L of cylinder holes to be processed.The invention also discloses a kind of grinding equipment.Using technical scheme, the position of the reversal point of honing knife when honing knife processes the cylinder holes of engine cylinder-body can be judged exactly, honing knife is avoided with the situation that engine cylinder-body collides to occur, prevention purpose is reached, and honing knife and engine cylinder-body will not be damaged, production cost is reduced, production efficiency is improved.
Description
Technical field
The present invention relates to engine processing technique field, more particularly to a kind of honing method of engine cylinder hole and honing dress
Put.
Background technology
Automobile engine is the engine that power is provided for automobile, is the heart of automobile, influences dynamic property, the economy of automobile
Property and the feature of environmental protection.Automobile engine cylinder-body needs honing knife to carry out Honing process to cylinder holes during manufacturing, in the top gem of a girdle-pendant
Need the lower reversal point for judging honing knife whether suitable during mill.Existing way typically checks honing knife in process
Whether tool front end or engine cylinder-body hit trace or damage, as nothing hits trace or damage, then it represents that the lower reversal point of honing knife is closed
It is suitable, conversely, then improper.Another way is that the coloured paint of tool is applied in honing knife front end, and is processed to verify,
As engine cylinder-body lower surface does not adhere to paint, then it represents that the lower reversal point of honing knife is suitable, conversely, then improper.
But, both fuzzy Normal practices for setting lower reversal point are when judging that reversal point is improper under honing knife, honing
Cutter or engine cylinder-body, which have often been occurred in that, hits trace or damage, does not reach prevention purpose, causes economic loss, and more
Change honing knife and remake or repair engine cylinder-body and take time and effort so that production cost increase, production efficiency can also drop
It is low.
The content of the invention
The main object of the present invention is to provide the honing method and grinding equipment of a kind of engine cylinder hole, it is intended to solve existing
The problem of reversal point of honing knife can not be accurately set when honing knife processes engine cylinder hole in technology.
To achieve the above object, a kind of honing method for engine cylinder hole that the present invention is provided, comprises the following steps：
Obtain the range L that cylinder holes to be processed can be moved for honing knifemax；
Set the safe distance D of honing；
According to formula L=Lmax- D calculate honing knife process cylinder holes to be processed when can move apart from L, it is described
Honing knife reaches reversal point and commutated after the initial manufacture face displacement L of cylinder holes to be processed.
Preferably, the range L that cylinder holes to be processed can be moved for honing knife is obtainedmaxThe step of include, obtain it is to be added
The depth L of work cylinder holes1The maximum amount of overrun L allowed with honing2, according to formula Lmax=L1+L2Calculate range Lmax。
Preferably, when the lower surface for obtaining honing knife reaches the initial manufacture face of cylinder holes to be processed, under honing knife
The vertical coordinate value C on surface1, according to formula C2=L+C1Calculate vertical coordinate value when honing knife reaches lower reversal point
C2。
Preferably, by C2In the control assembly of input control honing knife, control assembly controls honing knife in vertical side
Up to C2Shi Huanxiang.
Present invention simultaneously provides a kind of grinding equipment, the grinding equipment be used for engine cylinder hole carry out honing, institute
Stating grinding equipment includes honing knife and the control assembly for controlling the honing knife, and the control assembly includes storage
Device, processor and storage on a memory and the computer program that can run on a processor, described in the computing device
Computer program realizes step：
Obtain the range L that cylinder holes to be processed can be moved for honing knifemax；
Set the safe distance D of honing；
According to formula L=Lmax- D calculate honing knife process cylinder holes to be processed when can move apart from L, it is described
Honing knife reaches reversal point and commutated after the initial manufacture face displacement L of cylinder holes to be processed.
Preferably, the cylinder holes includes the first cylinder holes, surpassed distance cylinder holes and the second cylinder holes sequentially coaxially set, the surpassed distance
The internal diameter of cylinder holes is more than the internal diameter of first cylinder holes, and the internal diameter of second cylinder holes is less than the internal diameter of first cylinder holes, institute
Stating honing knife is used to process first cylinder holes, and the depth of first cylinder holes is L1, the depth of the surpassed distance cylinder holes is L2,
Wherein, Lmax=L1+L2。
Preferably, computer program can also be realized described in the computing device：The lower surface for obtaining honing knife is reached
During the initial manufacture face of cylinder holes to be processed, the vertical coordinate value C of the lower surface of honing knife1, according to formula C2=L+C1Calculate
Go out vertical coordinate value C when honing knife reaches lower reversal point2。
Preferably, computer program can also be realized described in the computing device：C2Input after computer program, control the top gem of a girdle-pendant
Knife milling tool in the vertical direction reaches C2Shi Huanxiang.
Preferably, the outer circumference surface of the honing knife is provided with multiple emery sticks, and multiple emery sticks are along the honing knife
Circumferentially-spaced arrangement.
In the inventive solutions, the honing method and grinding equipment of the engine cylinder hole can judge honing exactly
The position of the reversal point of honing knife during the cylinder holes of tool sharpening engine cylinder-body, it is to avoid honing knife is sent out with engine cylinder-body
The situation of raw collision occurs, and has reached prevention purpose, and will not damage honing knife and engine cylinder-body, reduces and is produced into
This, improves production efficiency.
Brief description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
There is the accompanying drawing used required in technology description to be briefly described, it should be apparent that, drawings in the following description are only this
Some embodiments of invention, for those of ordinary skill in the art, on the premise of not paying creative work, can be with
Structure according to these accompanying drawings obtains other accompanying drawings.
Structure when Fig. 1 is the upper surface of the first cylinder holes of lower surface arrival of emery stick in grinding equipment of the embodiment of the present invention is shown
It is intended to.
Fig. 2 is the structure when lower surface of emery stick in grinding equipment of the embodiment of the present invention is collided with the upper surface of the second cylinder holes
Schematic diagram.
Drawing reference numeral explanation：
| Label | Title | Label | Title |
| 1 | Engine cylinder-body | 10 | First cylinder holes |
| 20 | Surpassed distance cylinder holes | 30 | Second cylinder holes |
| 2 | Honing knife | 21 | Emery stick |
The realization, functional characteristics and advantage of the object of the invention will be described further referring to the drawings in conjunction with the embodiments.
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 present invention, rather than whole embodiments.Base
Embodiment in the present invention, those of ordinary skill in the art obtained under the premise of creative work is not made it is all its
His embodiment, belongs to the scope of protection of the invention.
It is to be appreciated that institute is directional in the embodiment of the present invention indicates that (such as up, down, left, right, before and after ...) is only used
In explaining relative position relation, motion conditions under a certain particular pose (as shown in drawings) between each part etc., if should
When particular pose changes, then directionality indicates also correspondingly therewith to change.
In addition, in the present invention such as relating to the description of " first ", " second " etc. be only used for describe purpose, and it is not intended that
Indicate or imply its relative importance or the implicit quantity for indicating indicated technical characteristic.Thus, define " first ",
At least one this feature can be expressed or be implicitly included to the feature of " second ".In the description of the invention, " multiple " contain
Justice is at least two, such as two, three etc., unless otherwise specifically defined.
In the present invention, unless otherwise clearly defined and limited, term " connection ", " fixation " etc. should be interpreted broadly,
For example, " fixation " can be fixedly connected or be detachably connected, or integrally；Can be mechanically connect or
Electrical connection；Can be joined directly together, can also be indirectly connected to by intermediary, can be the connection or two of two element internals
The interaction relationship of individual element, unless otherwise clear and definite restriction.For the ordinary skill in the art, can basis
Concrete condition understands the concrete meaning of above-mentioned term in the present invention.
In addition, the technical scheme between each embodiment of the invention can be combined with each other, but must be general with this area
Logical technical staff can be implemented as basis, when the combination appearance of technical scheme is conflicting or can not realize it will be understood that this
The combination of technical scheme is not present, also not within the protection domain of application claims.
It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, it is not intended to limit the present invention.
The honing method of the engine cylinder hole provided in the present invention, comprises the following steps：
S1：Obtain the range L that cylinder holes to be processed can be moved for honing knifemax。
Engine cylinder-body has cylinder holes to be processed and non-processing cylinder holes, and cylinder holes to be processed and non-processing cylinder holes are connected to one
Rise, honing knife is treated to be completed to continue to move a segment distance to non-processing cylinder holes after cutting at one time and change in this place after processing cylinder holes
To so that cylinder holes to be processed processing is complete, the honing knife after commutation starts to return.Position is the commutation of honing knife at this
Point, mobile distance is excessive, honing knife can be caused to be collided with engine cylinder-body, that is to say, that reversal point sets inaccurate
Honing knife can be caused to be collided with engine cylinder-body when really.Stroke LmaxThe position in the initial manufacture face of cylinder holes as to be processed
Put the distance of position when honing knife collides with engine cylinder-body.
S2：Set the safe distance D of honing.The reversal point of honing knife and position when colliding have it is certain away from
From the distance is safe distance D.The step S1 and step S2 of the present embodiment can be with reversed orders.
S3：According to formula L=Lmax- D calculate honing knife process cylinder holes to be processed when can move apart from L, the top gem of a girdle-pendant
Knife milling tool reaches reversal point and commutated after the initial manufacture face displacement L of cylinder holes to be processed.
The honing method of the engine cylinder hole is simple and convenient, and honing knife can be set to process the cylinder of engine cylinder-body exactly
The position of the reversal point of honing knife during hole, it is to avoid honing knife occurs with the situation that engine cylinder-body collides, and reaches
Prevention purpose, and will not damage honing knife and engine cylinder-body, production cost is reduced, production efficiency is improved.
The honing method of the engine cylinder hole of the present embodiment applies the work that holes of automobile engine cylinder is machined in vertical honing
In skill, above-mentioned reversal point is lower reversal point；Equally, this method applies also for Horizontal honing machine and processes other and automobile engine
In the technique of the similar workpiece of cylinder holes, now, above-mentioned reversal point is initial manufacture face of the honing knife from workpiece to be machined, along quilt
Process Workpiece length direction and the reversal point after cutting at one time is completed to the workpiece.
Further, in step sl, the depth L of cylinder holes to be processed is obtained1The maximum amount of overrun L allowed with honing2, root
According to formula Lmax=L1+L2Calculate Lmax.The maximum amount of overrun L that the honing of the present embodiment allows2As honing knife is to be added
The ultimate range that can be moved after cutting at one time to non-processing cylinder holes is completed after work cylinder holes.According to formula L=Lmax- D and Lmax=L1+
L2It can draw, L=L1+L2-D。
Further, when the lower surface for obtaining honing knife reaches the initial manufacture face of cylinder holes to be processed, honing knife
Lower surface vertical coordinate value C1, according to formula C2=L+C1Calculate vertical seat when honing knife reaches lower reversal point
Scale value C2, wherein, vertical coordinate value C1, vertical coordinate value C2It is the number of the coordinate z in vertical honing machine in coordinate (x, y, z)
Value.According to formula C2=L+C1And L=L1+L2- D can draw, C2=C1+L1+L2- D, honing knife can be set exactly
Lower reversal point.
By C2In the control assembly of input control honing knife, control assembly control honing knife in the vertical direction is reached
C2Shi Huanxiang, realizes the process of automation.The control assembly of the present embodiment includes memory, processor and is stored in storage
On device and the computer program that can run on a processor, operation formula C is contained in computer program2=C1+L1+L2- D,
By C1、L1、L2The lower reversal point that computer program is achievable setting honing knife is inputted with D values, and should by computing device
Computer program simultaneously controls honing knife in the vertical direction to reach C2Shi Huanxiang.
The honing method of the engine cylinder hole on the one hand avoid it is fuzzy set caused by lower reversal point honing knife with
The situation that engine cylinder-body collides, on the other hand, the parts replacement of honing axle, engine cylinder-body for honing machine remodel and
Situation after honing axle check of zero, according to formula C2=C1+L1+L2- D calculates the position of lower reversal point and made adjustment, and
And when need to only make the initial manufacture face of lower surface arrival cylinder holes to be processed of honing knife during adjustment, obtain the following table of honing knife
The vertical coordinate value C in face1, adjustment process is tight to need two minutes, meanwhile, in process of production, producers use the party
Method inspects periodically lower reversal point, prevent because safe distance D is not enough and caused by honing knife is damaged and engine cylinder-body is scrapped feelings
Condition occurs.In addition, this method is not required to increase any hardware, enter without increasing any expense investment, and its versatility is good, fits
Cylinder holes Honing process for institute's organic type.In actual production process, do not occur because under honing knife using after this method
Reversal point set it is inaccurate the reason for and cause honing knife damage situation.
As depicted in figs. 1 and 2, the invention provides a kind of grinding equipment, the grinding equipment is used for engine cylinder-body 1
Cylinder holes carries out honing, and engine cylinder-body 1 has cylinder holes to be processed and non-processing cylinder holes, cylinder holes to be processed and the connection of non-processing cylinder holes
Together.Grinding equipment includes honing knife 2 and the control assembly (not shown) for controlling honing knife 2, control assembly
Including memory, processor and storage on a memory and the computer program that can run on a processor, computing device
Computer program realizes step：
S1：Obtain the range L that cylinder holes to be processed can be moved for honing knife 2max；
Honing knife 2 is when the cylinder holes to be processed to engine cylinder-body 1 carries out honing, and honing knife 2 treats processing cylinder holes
Complete to continue to move a segment distance to non-processing cylinder holes after cutting at one time and commutate in this place, so that cylinder holes to be processed is processed
Entirely, the honing knife 2 after commutation starts to return.Position is the reversal point of honing knife 2 at this, and mobile distance is excessive then
Honing knife 2 is caused to be collided with engine cylinder-body 1, that is to say, that reversal point can cause honing knife 2 when setting inaccurate
Collided with engine cylinder-body 1.Stroke LmaxThe position in the initial manufacture face of cylinder holes as to be processed is to honing knife 2 with sending out
The distance of position when motivation cylinder body 1 collides.
S2：Set the safe distance D of honing.The reversal point of honing knife 2 has necessarily with position when colliding
Distance, the distance is safe distance D.The step S1 and step S2 of the present embodiment can be with reversed orders.
S3：According to formula L=Lmax- D calculate can be moved when honing knife 2 processes cylinder holes to be processed apart from L,
Honing knife 2 reaches reversal point and commutated after the initial manufacture face displacement L of cylinder holes to be processed.
The grinding equipment is simple in construction, honing knife when can set the cylinder holes of the processing engine cylinder-body 1 of honing knife 2 exactly
The position of the reversal point of tool 2, it is to avoid the problem of honing knife 2 collides with workpiece to be processed, has reached prevention purpose, and
Honing knife 2 and engine cylinder-body 1 will not be damaged, production cost is reduced, production efficiency is improved.
The present embodiment grinding equipment is vertical, and above-mentioned reversal point is lower reversal point；Equally, the grinding equipment can be sleeping
Formula, now, above-mentioned reversal point are initial manufacture face of the honing knife 2 from workpiece to be machined, along workpiece to be machined length direction pair
The workpiece completes the reversal point after cutting at one time.
Further, cylinder holes includes the first cylinder holes 10, the cylinder holes 30 of surpassed distance cylinder holes 20 and second, surpassed distance sequentially coaxially set
The internal diameter of cylinder holes 20 is more than the internal diameter of the first cylinder holes 10, and the internal diameter of the second cylinder holes 30 is less than the internal diameter of the first cylinder holes 10, honing knife
Tool 2 is used to process the first cylinder holes 10, and the depth of the first cylinder holes 10 is L1, the depth of surpassed distance cylinder holes 20 is L2, wherein, Lmax=L1+
L2.According to formula L=Lmax- D and Lmax=L1+L2It can draw, L=L1+L2-D。
Further, computing device computer program can also be realized：The lower surface for obtaining honing knife 2 reaches first
During the initial manufacture face of cylinder holes 10, the vertical coordinate value C of the lower surface of honing knife 21, according to formula C2=L+C1Calculate
Honing knife 2 reaches vertical coordinate value C during lower reversal point2, wherein, vertical coordinate value C1, vertical coordinate value C2It is the vertical top gem of a girdle-pendant
The numerical value of coordinate z in grinding machine in coordinate (x, y, z).According to formula C2=L+C1And L=L1+L2- D can draw, C2=C1+L1
+L2- D, the lower reversal point of honing knife 2 can be set exactly.
Computing device computer program can also be realized：C2Input after computer program, control honing knife 2 is in vertical side
Up to C2Shi Huanxiang, realizes the process of automation.Operation formula C is contained in the computer program of the present embodiment2=
C1+L1+L2- D, by C1、L1、L2It is the lower reversal point of achievable setting honing knife 2 with D values input computer program, and by
The computing device computer program simultaneously controls the in the vertical direction of honing knife 2 to reach C2Shi Huanxiang.
On the one hand the grinding equipment avoids honing knife 2 and engine cylinder-body 1 caused by fuzzy reversal point under setting
Situation about colliding, on the other hand, the parts replacement of honing axle, engine cylinder-body 1 for the honing machine in the device are remodeled
And the situation after honing axle check of zero, according to formula C2=C1+L1+L2- D calculates the position of lower reversal point and made adjustment,
Meanwhile, in process of production, producers can inspect periodically lower reversal point, prevention because safe distance D is not enough and caused by honing
The situation that cutter 2 is damaged and engine cylinder-body 1 is scrapped occurs.
As depicted in figs. 1 and 2, in the present embodiment, the outer circumference surface of honing knife 2 is provided with multiple emery sticks 21, Duo Gesha
Circumferentially-spaced arrangement of the bar 21 along honing knife 2, beneficial to the first cylinder holes 10 of cutting.Honing knife 2 is collided with engine cylinder-body 1
The lower surface and the upper surface of the second cylinder holes 30 for referring to emery stick 21 collide.The vertical coordinate value C of the lower surface of honing knife 21
When can be that the lower surface of emery stick 21 reaches the upper surface of the first cylinder holes 10, the vertical coordinate value of honing axle (not shown), equally,
Vertical coordinate value C2The vertical coordinate value of honing axle (not shown) when can be reversal point under honing knife 2 is reached.
The preferred embodiments of the present invention are the foregoing is only, are not intended to limit the scope of the invention, it is every at this
Under the design of invention, the equivalent structure transformation made using description of the invention and accompanying drawing content, or directly/it is used in indirectly
He is included in the scope of patent protection of the present invention related technical field.
Claims (9)
1. a kind of honing method of engine cylinder hole, it is characterised in that comprise the following steps：
Obtain the range L that cylinder holes to be processed can be moved for honing knifemax；
Set the safe distance D of honing；
According to formula L=Lmax- D calculate honing knife process cylinder holes to be processed when can move apart from L, the honing
Cutter reaches reversal point and commutated after the initial manufacture face displacement L of cylinder holes to be processed.
2. the honing method of engine cylinder hole as claimed in claim 1, it is characterised in that obtaining cylinder holes to be processed can be for honing
The range L of cutter movementmaxThe step of include, obtain the depth L of cylinder holes to be processed1The maximum amount of overrun allowed with honing
L2, according to formula Lmax=L1+L2Calculate range Lmax。
3. the honing method of engine cylinder hole as claimed in claim 1, it is characterised in that the lower surface for obtaining honing knife is arrived
Up to cylinder holes to be processed initial manufacture face when, the vertical coordinate value C of the lower surface of honing knife1, according to formula C2=L+C1Calculate
Draw vertical coordinate value C when honing knife reaches lower reversal point2。
4. the honing method of engine cylinder hole as claimed in claim 3, it is characterised in that by C2Input control honing knife
In control assembly, control assembly control honing knife reaches C in a vertical direction2Shi Huanxiang.
5. a kind of grinding equipment, the grinding equipment is used to carry out honing to engine cylinder hole, it is characterised in that the honing dress
Put including honing knife and for controlling the control assembly of the honing knife, the control assembly includes memory, processing
Device and storage are on a memory and the computer program that can run on a processor, computer journey described in the computing device
Sequence realizes step：
Obtain the range L that cylinder holes to be processed can be moved for honing knifemax；
Set the safe distance D of honing；
According to formula L=Lmax- D calculate honing knife process cylinder holes to be processed when can move apart from L, the honing
Cutter reaches reversal point and commutated after the initial manufacture face displacement L of cylinder holes to be processed.
6. grinding equipment as claimed in claim 5, it is characterised in that the cylinder holes includes the first cylinder sequentially coaxially set
Hole, surpassed distance cylinder holes and the second cylinder holes, the internal diameter of the surpassed distance cylinder holes are more than the internal diameter of first cylinder holes, second cylinder holes
Internal diameter is less than the internal diameter of first cylinder holes, and the honing knife is used to process first cylinder holes, the depth of first cylinder holes
Spend for L1, the depth of the surpassed distance cylinder holes is L2, wherein, Lmax=L1+L2。
7. grinding equipment as claimed in claim 5, it is characterised in that computer program can also be real described in the computing device
It is existing：When the lower surface for obtaining honing knife reaches the initial manufacture face of cylinder holes to be processed, the vertical seat of the lower surface of honing knife
Scale value C1, according to formula C2=L+C1Calculate vertical coordinate value C when honing knife reaches lower reversal point2。
8. grinding equipment as claimed in claim 7, it is characterised in that computer program can also be real described in the computing device
It is existing：C2Input after computer program, control honing knife in the vertical direction reaches C2Shi Huanxiang.
9. the grinding equipment as any one of claim 5-8, it is characterised in that on the outer circumference surface of the honing knife
Provided with multiple emery sticks, circumferentially-spaced arrangement of multiple emery sticks along the honing knife.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710604124.4A CN107175581A (en) | 2017-07-21 | 2017-07-21 | The honing method and grinding equipment of engine cylinder hole |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710604124.4A CN107175581A (en) | 2017-07-21 | 2017-07-21 | The honing method and grinding equipment of engine cylinder hole |
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| Publication Number | Publication Date |
|---|---|
| CN107175581A true CN107175581A (en) | 2017-09-19 |
Family
ID=59837530
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710604124.4A Pending CN107175581A (en) | 2017-07-21 | 2017-07-21 | The honing method and grinding equipment of engine cylinder hole |
Country Status (1)
| Country | Link |
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| CN (1) | CN107175581A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113492355A (en) * | 2021-05-07 | 2021-10-12 | 南京航空航天大学 | Hydraulic coupling part precision honing aperture prediction and control method |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113492355A (en) * | 2021-05-07 | 2021-10-12 | 南京航空航天大学 | Hydraulic coupling part precision honing aperture prediction and control method |
| CN113492355B (en) * | 2021-05-07 | 2022-06-07 | 南京航空航天大学 | Hydraulic coupling part precision honing aperture prediction and control method |
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Application publication date: 20170919 |