CN104842119A - Rolling device and rolling method for chromium coating layer on inner hole wall of outer barrel end of damper - Google Patents
Rolling device and rolling method for chromium coating layer on inner hole wall of outer barrel end of damper Download PDFInfo
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- CN104842119A CN104842119A CN201510207024.9A CN201510207024A CN104842119A CN 104842119 A CN104842119 A CN 104842119A CN 201510207024 A CN201510207024 A CN 201510207024A CN 104842119 A CN104842119 A CN 104842119A
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- damper
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- damper urceolus
- chromium coating
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P9/00—Treating or finishing surfaces mechanically, with or without calibrating, primarily to resist wear or impact, e.g. smoothing or roughening turbine blades or bearings; Features of such surfaces not otherwise provided for, their treatment being unspecified
- B23P9/02—Treating or finishing by applying pressure, e.g. knurling
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- Auxiliary Devices For Machine Tools (AREA)
- Fluid-Damping Devices (AREA)
Abstract
The invention belongs to the technical field of forcing processing equipment and relates to a rolling device and a rolling method for a chromium coating layer on an inner hole wall of the outer barrel end of a damper. The rolling device for the chromium coating layer on the inner hole wall of the outer barrel end of the damper cooperates with a machine tool to finish rolling the surface of the inner wall of a cylindrical work piece. The rolling device for the chromium coating layer on the inner hole wall of the outer barrel end of the damper comprises a work piece locating and clamping mechanism and a rolling cutter. The work piece locating and clamping mechanism comprises a work piece left end locating unit and a bearing arranged on the outer wall of the right end of an outer barrel work piece of the damper, the work piece left end locating unit is arranged on a machine tool chuck, and the bearing is matched with the machine tool and a cutter holder. The rolling cutter is arranged on the machine tool cutter holder. The rolling device for the chromium coating layer on the inner hole wall of the outer barrel end of the damper solves the problem of oil dot seepage at the sealed position of the end of the damper of an air vehicle landing gear and guarantees the work reliability of the damper of the air vehicle landing gear can meet the design requirements.
Description
Technical field
The present invention relates to a kind of rolling device for aircraft landing gear damper urceolus termination inner hole wall chromium coating and rolling depression method, belong to pressure treater technical field.
Background technology
In the landing gear assembly of aircraft, all damper is set, to absorb Impact energy during aircraft lands, reduces impact, and jolting when weakening body taxi in and sliding race is beated.The damper urceolus 1 of a kind of aircraft landing gear as shown in Figure 1, the equipped hermetically-sealed construction in inwall 1-1 place, termination on the right side of it, end, left side arranges left connecting hole 1-4, is also provided with and is arranged on the first pin sleeve 1-2 on damper outer tube wall and the second pin sleeve 1-3 by two bracing frame 1-5 on the left of it.
In aircraft landing gear assembly maintenance process, in order to ensure the sealing property of damper, first need to carry out chromium plating process to termination inner hole wall on the right side of damper urceolus, then in chromium coating, inner sleeve is installed, in inner sleeve outer wall seal groove, the O-ring seal matched is installed.Because chromium coating physics compactness is poor, cause damper end seals place after the pressurizing that fluid point occurs and ooze phenomenon.For the problems referred to above, aircraft service technician imagines the method for employing roll extrusion process to improve the physics compactness of damper urceolus termination hole wall chromium coating, therefore, the task of top priority that a kind of damper urceolus termination inner hole wall chromium coating rolling device becomes aircraft service work is researched and developed.
Summary of the invention
The object of the invention is to ooze problem for aircraft landing gear damper end seals place fluid point, a kind of damper urceolus termination inner hole wall chromium coating rolling device is provided, to improve the physics compactness of aircraft landing gear damper termination inwall chromium coating, ensure that the reliability of damper work reaches technical requirement.
The object of the invention is to be achieved through the following technical solutions:
A kind of damper urceolus termination inner hole wall chromium coating rolling device, it has coordinated the surface rolling of cylindrical parts workpiece inner wall to process with lathe; Described damper urceolus termination inner hole wall chromium coating rolling device comprises workpiece positioning clamping mechanism and rolling tool; Described workpiece positioning clamping mechanism comprises workpiece left end positioning unit and is fitted in the bearing on damper urceolus workpiece right end outer wall, and described workpiece left end positioning unit is arranged on machine chuck, and described bearing and lathe follow-rest are equipped with; Described rolling tool is arranged on lathe cutter saddle.
Above-mentioned damper urceolus termination inner hole wall chromium coating rolling device, described left end positioning unit comprises the first positioning component and the second positioning component that intersect vertically; Described first positioning component is horizontally disposed, the left connecting hole of its one end and damper urceolus workpiece is equipped with, the other end is arranged on machine chuck, and the first positioning component arranges positioning and locking cover, and described positioning and locking is arranged with one group of locking hole of the through locating hole of vertical direction and radial arrangement; Described second positioning component is sleeved in described locating hole, and is fixed by the screw be arranged in locking hole.
Above-mentioned damper urceolus termination inner hole wall chromium coating rolling device, described second positioning component comprises positioning screw and one group of locking nut; Described positioning screw is vertically arranged, its upper end penetrates in the first pin sleeve of damper urceolus workpiece, lower end penetrates in the second pin sleeve of damper urceolus workpiece, position is provided with and overlaps with positioning and locking in the first positioning component the smooth, cylindrical peripheral surface coordinated therebetween, overlaps cooperation position place, upper and lower two ends be all set with locking nut at positioning screw and the first pin sleeve, the second pin sleeve and positioning and locking.
Above-mentioned damper urceolus termination inner hole wall chromium coating rolling device, described bearing and damper urceolus workpiece right end periphery interference fits are assembled.
Above-mentioned damper urceolus termination inner hole wall chromium coating rolling device, described rolling tool comprises handle of a knife, tool rest, knife bar, diamond segment, swivel nut and Compress Spring; Described handle of a knife one end and lathe cutter saddle are equipped with, and the other end is fixedly connected with tool rest; Described tool rest is tube-in-tube structure, in tool rest inner chamber, assemble knife bar; Described knife bar upper end and swivel nut are equipped with, and are provided with boss structure in the middle, install diamond segment in the lower end of knife bar; Described swivel nut is threaded connection structure and tool rest assembles; Described Compress Spring is sleeved on outside knife bar, is arranged between swivel nut and knife bar boss structure.
Above-mentioned damper urceolus termination inner hole wall chromium coating rolling device, described diamond segment outer surface is smooth sphere.
Damper urceolus termination of the present invention inner hole wall chromium coating rolling device, architectural feature according to damper urceolus workpiece devises the workpiece positioning clamping mechanism matched, by workpiece positioning clamping mechanism, damper urceolus Workpiece fixing is arranged on machine chuck and follow-rest, and by handle of a knife, rolling tool is arranged on lathe cutter saddle, when lathe is in running order, damper urceolus workpiece rotates with machine tool chief axis, rolling tool does reciprocating linear motion under lathe cutter saddle drives, under the Compress Spring elastic force effect of setting, the smooth sphere of diamond segment is to the repeatedly roll extrusion of damper urceolus termination inner hole wall chromium coating, hence improve the syndeton between chromium coating molecule, improve the density of chromium coating, solve the problem that aircraft landing gear damper end seals place fluid point oozes, ensure that aircraft landing gear damper functional reliability reaches technical requirement.
Another object of the present invention is to provide a kind of damper urceolus termination inner hole wall chromium coating rolling depression method, with the problem that the physics compactness solving aircraft landing gear damper termination inwall chromium coating is poor.
Above-mentioned purpose of the present invention is achieved through the following technical solutions:
A kind of damper urceolus termination inner hole wall chromium coating rolling depression method, adopts above-mentioned damper urceolus termination inner hole wall chromium coating rolling device to carry out rolling and processing to damper urceolus termination inner hole wall chromium coating, follows these steps to operate:
A, the positioning screw of the second positioning component to be assembled with the first pin sleeve 1-2 of damper urceolus workpiece, the second pin sleeve and the first positioning component respectively, after again the first positioning component right-hand member and the left connecting hole of damper urceolus workpiece being assembled, first positioning component left end is arranged on machine chuck, damper urceolus workpiece right-hand member is arranged on lathe follow-rest;
B, adjustment damper urceolus clamping workpiece state, make the axiality of damper urceolus workpiece and machine tool chief axis meet design requirement, then by being fitted in screw in locking hole by positioning screw locking in the second positioning component;
C, be arranged on lathe cutter saddle by handle of a knife by rolling tool, adjustment Compress Spring decrement, makes Compress Spring elastic force meet the numerical value of designing requirement;
D, unlatching lathe, damper urceolus workpiece rotates with machine tool chief axis, rolling tool does reciprocating linear motion under lathe cutter saddle drives, and under the elastic force effect of the Compress Spring of setting, the smooth sphere of diamond segment is to the repeatedly roll extrusion of damper urceolus termination inner hole wall chromium coating.
Above-mentioned damper urceolus termination inner hole wall chromium coating rolling depression method, in stepb, when damper urceolus clamping workpiece state is adjusted, first manual operation makes machine chuck rotate, utilize the axiality of centimeter check damper urceolus workpiece and machine tool chief axis, then adjust the upper-lower position of positioning screw in the second positioning component, simultaneously, lathe follow-rest claw is adjusted, until the axiality of damper urceolus workpiece and machine tool chief axis meets design requirement.
Above-mentioned damper urceolus termination inner hole wall chromium coating rolling depression method, in step c, rotate swivel nut forward or backwards, swivel nut is made to have coordinated the adjustment of swivel nut upper-lower position with tool rest external screw thread, the adjustment to Compress Spring decrement is realized with this, when swivel nut position rises, Compress Spring decrement reduces, and Compress Spring elastic force reduces; When swivel nut position declines, Compress Spring decrement increases, and Compress Spring elastic force increases.
Damper urceolus termination of the present invention inner hole wall chromium coating rolling depression method is identical relative to the beneficial effect of prior art with above-mentioned damper urceolus termination inner hole wall chromium coating rolling device, does not repeat them here.
Accompanying drawing explanation
Fig. 1 is aircraft landing gear damper outer tube structure schematic diagram;
Fig. 2 is damper urceolus termination of the present invention inner hole wall chromium coating rolling device structural representation;
Fig. 3 is A-A cross-sectional view in Fig. 2;
Fig. 4 is the first positioning component structural representation of left end positioning unit in workpiece positioning clamping mechanism;
Fig. 5 is B-B cross-sectional view in Fig. 4;
Fig. 6 is the top view of Fig. 4;
Fig. 7 is the second positioning component structural representation of left end positioning unit in workpiece positioning clamping mechanism;
Fig. 8 is rolling tool structural representation in the inner hole wall chromium coating rolling device of damper urceolus termination of the present invention;
Fig. 9 is the detonation configuration schematic diagram of Fig. 8;
Figure 10 is damper urceolus termination of the present invention inner hole wall chromium coating rolling device working state schematic representation.
In figure, each list of reference numerals is: 1, damper urceolus, 1-1, termination, right side inwall, 1-2, first pin sleeve, 1-3, second pin sleeve, 1-4, left connecting hole, 1-5, bracing frame, 2, first positioning component, 2-1, positioning and locking cover, 2-1-1, locating hole, 2-1-2, locking hole, 3, second positioning component, 3-1, positioning screw, 3-1-1, smooth, cylindrical peripheral surface, 3-2, locking nut, 4, machine chuck, 5, lathe follow-rest, 6, bearing, 7, rolling tool, 7-1, handle of a knife, 7-2, swivel nut, 7-3, knife bar, 7-3-1, boss structure, 7-4, Compress Spring, 7-5, tool rest, 7-6, diamond segment.
Detailed description of the invention
Below in conjunction with accompanying drawing, the invention will be further described.
It should be noted that, in the present invention in background technology and embodiment designed by the noun of locality such as the "left", "right" that arrives, consistent with the left and right direction identified in accompanying drawing 1, Fig. 2.
Referring to Fig. 2, Fig. 3, damper urceolus termination of the present invention inner hole wall chromium coating rolling device has coordinated the surface rolling of cylindrical parts workpiece inner wall to process with lathe; Described damper urceolus termination inner hole wall chromium coating rolling device comprises workpiece positioning clamping mechanism and rolling tool 7; Described workpiece positioning clamping mechanism comprises workpiece left end positioning unit and is fitted in the bearing 6 on damper urceolus workpiece right end cylindrical, described workpiece left end positioning unit is arranged on machine chuck 4, described bearing 6 adopts radial ball bearing, its outer ring and lathe follow-rest 5 are equipped with, and inner ring and damper urceolus workpiece right end periphery interference fits are assembled; Described rolling tool 7 is arranged on lathe cutter saddle.
Referring to Fig. 2, Fig. 4, Fig. 5, Fig. 6, in the inner hole wall chromium coating rolling device of damper urceolus termination of the present invention, described left end positioning unit comprises the first positioning component 2 and the second positioning component 3 intersected vertically; Described first positioning component 2 is horizontally disposed, the left connecting hole 1-4 of its one end and damper urceolus workpiece is equipped with, the other end is arranged on machine chuck 4, first positioning component 2 arranges positioning and locking cover 2-1, and described positioning and locking cover 2-1 is provided with one group of locking hole 2-1-2 of the through locating hole 2-1-1 of vertical direction and radial arrangement; Described second positioning component 3 is sleeved in described locating hole 2-1-1, and is fixed by the screw be arranged in locking hole 2-1-2.
Referring to Fig. 2, Fig. 7, in the inner hole wall chromium coating rolling device of damper urceolus termination of the present invention, described second positioning component 3 comprises positioning screw 3-1 and group of locking nut 3-2; Described positioning screw 3-1 vertically arranges, its upper end penetrates in the first pin sleeve 1-2 of damper urceolus workpiece, lower end penetrates in the second pin sleeve 1-3 of damper urceolus workpiece, position is provided with the smooth, cylindrical peripheral surface 3-1-1 overlapping 2-1 with positioning and locking in the first positioning component 2 and coordinate therebetween, overlaps cooperation position place, 2-1 upper and lower two ends be all set with locking nut 3-2 at positioning screw 3-1 and the first pin sleeve 1-2, the second pin sleeve 1-3 and positioning and locking.
Referring to Fig. 2, Fig. 8, Fig. 9, in the inner hole wall chromium coating rolling device of damper urceolus termination of the present invention, described rolling tool 7 comprises handle of a knife 7-1, tool rest 7-5, knife bar 7-3, diamond segment 7-6, swivel nut 7-2 and Compress Spring 7-4; Described handle of a knife 7-1 one end and lathe cutter saddle are equipped with, and the other end is fixedly connected with tool rest 7-5; Described tool rest 7-5 is tube-in-tube structure, in tool rest 7-5 inner chamber, assemble knife bar 7-3; Described knife bar 7-3 upper end and swivel nut 7-2 are equipped with, and are provided with boss structure 7-3-1 in the middle, install diamond segment 7-6 in the lower end of knife bar; Described diamond segment 7-6 outer surface is smooth sphere; Described swivel nut 7-2 is threaded connection structure and tool rest 7-5 assembles; Described Compress Spring 7-4 is sleeved on outside knife bar 7-3, between the boss structure 7-3-1 being arranged in swivel nut 7-2 and knife bar 7-3, by regulating the elastic force of Compress Spring 7-4 to the adjustment of swivel nut 7-2 and tool rest 7-5 threaded engagement position, the roll extrusion power of diamond segment 7-6 to damper urceolus workpiece termination inwall chromium coating is met design requirement.
Referring to Fig. 1 to Figure 10, damper urceolus termination of the present invention inner hole wall chromium coating rolling depression method comprises following operating procedure:
A, the positioning screw 3-1 of the second positioning component 3 to be assembled with the first pin sleeve 1-2, the second pin sleeve 1-3 of damper urceolus workpiece and the first positioning component 2 respectively, after again the first positioning component 2 right-hand member and the left connecting hole 1-4 of damper urceolus workpiece being assembled, first positioning component 2 left end is arranged on machine chuck 4, damper urceolus workpiece right-hand member is arranged on lathe follow-rest 5;
B, manual operation make machine chuck rotate, utilize the axiality of centimeter check damper urceolus workpiece and machine tool chief axis, adjust the upper-lower position of positioning screw 3-1 in the second positioning component 3, simultaneously, lathe follow-rest claw is adjusted, the axiality of damper urceolus workpiece and machine tool chief axis is met design requirement, then by being fitted in screw in locking hole 2-1-2 by positioning screw 3-1 locking in the second positioning component 3;
C, by handle of a knife 7-1, rolling tool 7 is arranged on lathe cutter saddle, adjustment Compress Spring 7-4 decrement, Compress Spring elastic force is made to meet the numerical value of designing requirement, its adjustment process is: rotate swivel nut 7-2 forward or backwards, swivel nut 7-2 is made to have coordinated the adjustment of swivel nut upper-lower position with tool rest 7-5 external screw thread, the adjustment to Compress Spring 7-4 decrement is realized with this, when swivel nut 7-2 position rises, Compress Spring 7-4 decrement reduces, Compress Spring 7-4 elastic force reduces, when swivel nut 7-2 position declines, Compress Spring 7-4 decrement increases, Compress Spring 7-4 elastic force increases,
D, unlatching lathe, damper urceolus workpiece rotates with machine tool chief axis, rolling tool 7 does reciprocating linear motion under lathe cutter saddle drives, and under the elastic force effect of the Compress Spring 7-4 of setting, the smooth sphere of diamond segment 7-6 is to the repeatedly roll extrusion of damper urceolus termination inner hole wall chromium coating.
Damper urceolus termination inner hole wall chromium coating rolling device of the present invention and rolling depression method, by the smooth sphere of diamond segment to the repeatedly roll extrusion of damper urceolus termination inner hole wall chromium coating, improve the syndeton between chromium coating molecule, improve the density of chromium coating, solve the problem that aircraft landing gear damper end seals place fluid point oozes, ensure that aircraft landing gear damper functional reliability reaches technical requirement.
Claims (9)
1. a damper urceolus termination inner hole wall chromium coating rolling device, it has coordinated the surface rolling of cylindrical parts workpiece inner wall to process with lathe; It is characterized in that, described damper urceolus termination inner hole wall chromium coating rolling device comprises workpiece positioning clamping mechanism and rolling tool (7); Described workpiece positioning clamping mechanism comprises workpiece left end positioning unit and is fitted in the bearing (6) on damper urceolus workpiece right end outer wall, described workpiece left end positioning unit is arranged on machine chuck (4), and described bearing (6) is equipped with lathe follow-rest (5); Described rolling tool (7) is arranged on lathe cutter saddle.
2. damper urceolus termination according to claim 1 inner hole wall chromium coating rolling device, is characterized in that, described left end positioning unit comprises the first positioning component (2) and the second positioning component (3) that intersect vertically; Described first positioning component (2) is horizontally disposed, the left connecting hole (1-4) of its one end and damper urceolus workpiece is equipped with, the other end is arranged on machine chuck (4), first positioning component (2) arranges positioning and locking cover (2-1), and described positioning and locking cover (2-1) is provided with one group of locking hole (2-1-2) of the through locating hole of vertical direction (2-1-1) and radial arrangement; Described second positioning component (3) is sleeved in described locating hole (2-1-1), and is fixed by the screw be arranged in locking hole (2-1-2).
3. damper urceolus termination according to claim 2 inner hole wall chromium coating rolling device, is characterized in that, described second positioning component (3) comprises positioning screw (3-1) and one group of locking nut (3-2); Described positioning screw (3-1) is vertically arranged, its upper end penetrates in first pin sleeve (1-2) of damper urceolus workpiece, lower end penetrates in second pin sleeve (1-3) of damper urceolus workpiece, position is provided with the smooth, cylindrical peripheral surface (3-1-1) coordinated with positioning and locking cover (2-1) in the first positioning component (2) therebetween, is all set with locking nut (3-2) in cooperation position place, two ends up and down at positioning screw (3-1) and the first pin sleeve (1-2), the second pin sleeve (1-3) and positioning and locking cover (2-1).
4. damper urceolus termination according to claim 3 inner hole wall chromium coating rolling device, is characterized in that, described bearing (6) and damper urceolus workpiece right end periphery interference fits are assembled.
5. the damper urceolus termination inner hole wall chromium coating rolling device according to claim 1 or 2 or 3 or 4, it is characterized in that, described rolling tool (7) comprises handle of a knife (7-1), tool rest (7-5), knife bar (7-3), diamond segment (7-6), swivel nut (7-2) and Compress Spring (7-4); Described handle of a knife (7-1) one end and lathe cutter saddle are equipped with, and the other end is fixedly connected with tool rest (7-5); Described tool rest (7-5) is tube-in-tube structure, assembles knife bar (7-3) in tool rest (7-5) inner chamber; Described knife bar (7-3) upper end and swivel nut (7-2) are equipped with, and are provided with boss structure (7-3-1) in the middle, install diamond segment (7-6) in the lower end of knife bar; Described swivel nut (7-2) is threaded connection structure and tool rest (7-5) assembles; Described Compress Spring (7-4) is sleeved on knife bar (7-3) outside, between the boss structure (7-3-1) being arranged in swivel nut (7-2) and knife bar (7-3).
6. damper urceolus termination according to claim 5 inner hole wall chromium coating rolling device, it is characterized in that, described diamond segment (7-6) outer surface is smooth sphere.
7. a damper urceolus termination inner hole wall chromium coating rolling depression method, it is characterized in that, adopt the damper urceolus termination inner hole wall chromium coating rolling device according to any one of claim 1 to 6 to carry out rolling and processing to damper urceolus termination inner hole wall chromium coating, follow these steps to operate:
A, the positioning screw (3-1) of the second positioning component (3) to be assembled with first pin sleeve (1-2) of damper urceolus workpiece, the second pin sleeve (1-3) and the first positioning component (2) respectively, after again the first positioning component (2) right-hand member and the left connecting hole of damper urceolus workpiece (1-4) being assembled, first positioning component (2) left end is arranged on machine chuck (4), damper urceolus workpiece right-hand member is arranged on lathe follow-rest (5);
B, adjustment damper urceolus clamping workpiece state, make the axiality of damper urceolus workpiece and machine tool chief axis meet design requirement, by being fitted in screw in locking hole 2-1-2 by positioning screw 3-1 locking in the second positioning component 3;
C, be arranged on lathe cutter saddle by handle of a knife (7-1) by rolling tool (7), adjustment Compress Spring (7-4) decrement, makes Compress Spring elastic force meet the numerical value of designing requirement;
D, unlatching lathe, damper urceolus workpiece rotates with machine tool chief axis, rolling tool (7) does reciprocating linear motion under lathe cutter saddle drives, under the elastic force effect of the Compress Spring (7-4) of setting, the smooth sphere of diamond segment (7-6) is to the repeatedly roll extrusion of damper urceolus termination inner hole wall chromium coating.
8. damper urceolus termination according to claim 7 inner hole wall chromium coating rolling depression method, it is characterized in that, in stepb, when damper urceolus clamping workpiece state is adjusted, first manual operation makes machine chuck rotate, utilize the axiality of centimeter check damper urceolus workpiece and machine tool chief axis, adjust the upper-lower position of positioning screw (3-1) in the second positioning component (3) again, simultaneously, lathe follow-rest claw is adjusted, until the axiality of damper urceolus workpiece and machine tool chief axis meets design requirement.
9. damper urceolus termination according to claim 7 inner hole wall chromium coating rolling depression method, it is characterized in that, in step c, rotate swivel nut (7-2) forward or backwards, make swivel nut (7-2) coordinate the adjustment of swivel nut upper-lower position with tool rest (7-5) external screw thread, realize the adjustment to Compress Spring (7-4) decrement with this, when swivel nut (7-2) position rises, Compress Spring (7-4) decrement reduces, and Compress Spring (7-4) elastic force reduces; When swivel nut (7-2) position declines, Compress Spring (7-4) decrement increases, and Compress Spring (7-4) elastic force increases.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510207024.9A CN104842119B (en) | 2015-04-28 | 2015-04-28 | Damper outer tube termination inner hole wall chromium coating rolling device and rolling depression method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510207024.9A CN104842119B (en) | 2015-04-28 | 2015-04-28 | Damper outer tube termination inner hole wall chromium coating rolling device and rolling depression method |
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| CN104842119B CN104842119B (en) | 2017-03-08 |
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2015
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| CN87102404A (en) * | 1987-03-28 | 1988-10-12 | 朱兆坤 | Adjustable inner hole-rolling tool |
| WO2000008232A1 (en) * | 1998-08-08 | 2000-02-17 | Laystall Engineering Company Limited | Method of treating a bearing surface |
| CN201267929Y (en) * | 2008-08-28 | 2009-07-08 | 西安飞机工业（集团）有限责任公司 | Rolling depression device |
| CN102152084A (en) * | 2011-05-05 | 2011-08-17 | 柳州双吉机械有限公司 | Processing method for inner hole of cylinder |
| EP2666590A2 (en) * | 2012-05-22 | 2013-11-27 | Robert Bosch Gmbh | Method for rolling a cylindrical component surface |
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| CN104842119B (en) | 2017-03-08 |
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