CN111112955B - Multi-split-flow split type box body and processing method thereof - Google Patents
Multi-split-flow split type box body and processing method thereof Download PDFInfo
- Publication number
- CN111112955B CN111112955B CN202010004790.6A CN202010004790A CN111112955B CN 111112955 B CN111112955 B CN 111112955B CN 202010004790 A CN202010004790 A CN 202010004790A CN 111112955 B CN111112955 B CN 111112955B
- Authority
- CN
- China
- Prior art keywords
- hole
- box body
- split
- bearing
- processing method
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Classifications
-
- 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
- B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H57/00—General details of gearing
- F16H57/02—Gearboxes; Mounting gearing therein
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H57/00—General details of gearing
- F16H57/02—Gearboxes; Mounting gearing therein
- F16H2057/02017—Gearboxes; Mounting gearing therein characterised by special features related to the manufacturing of the gear case, e.g. special adaptations for casting
Abstract
The invention provides a method for processing a multi-split box, which comprises the steps of roughly milling the joint surfaces of all parts of the box; assembling all the parts into a box body to perform integral scribing, disassembling the box body, and performing semi-finish milling on a joint surface by taking the integral scribing as a reference; drilling reference pin holes on each component; assembling a second component, a third component and 1 first component, integrally installing the second component, the third component and the 1 first component on a boring machine workbench, roughly machining a four-split flow bearing hole, assembling the whole and the first component into a box body, and roughly machining an eight-split flow bearing through hole; disassembling the box body, removing stress, aligning by taking the reference pin hole as a reference, and finely milling each joint surface; assembling the components, and semi-finely boring the holes according to the position error among the hole systems; and (5) eliminating the overall stress by vibration, and compensating according to the deviation of the actual position and the ideal position of each hole to finely bore each hole. The invention improves the position precision of the bearing hole of the box body.
Description
Technical Field
The invention relates to the technical field of mechanical dynamics, in particular to a multi-split flow split type box body and a processing method thereof.
Background
The wind power speed increasing box is a very key part in a wind generating set, and the quality of the box body processing quality directly influences the quality of a fan.
The wind power speed increasing box generally comprises a structural layout of a first-stage planet, a second-stage parallel planet or a two-stage planet and a first-stage parallel planet. In order to further meet the lightweight design requirement of offshore wind power and realize high maintainability, the wind power speed increasing box is mostly arranged in a fully parallel shaft multi-shunt structure at present. However, the machining precision of the multi-split box body is often low, and the vibration and noise indexes of load uniform distribution and operation of the box body are directly influenced.
Therefore, how to improve the position accuracy of the bearing hole of the box body is an urgent technical problem to be solved by those skilled in the art.
Disclosure of Invention
In view of the above, a first object of the present invention is to provide a method for processing a multi-split type box body, which can improve the position accuracy of a bearing hole of the box body.
The second purpose of the invention is to provide a multi-split box body.
In order to achieve the first object, the invention provides the following technical scheme:
the utility model provides a split type box processing method of reposition of redundant personnel for process split type box of reposition of redundant personnel, split type box of reposition of redundant personnel includes first part, second part and third part, the number of first part with the second part is 2, the number of third part is 1, 2 the second part assemblage is in the both sides of third part, 2 the first part assemblage is respectively in 2 the outside of second part, 4 quartering bearing holes have been seted up on second part and the third part assemblage wholly, quartering bearing hole is the blind hole, 8 eighth reposition of redundant personnel bearing through-holes that encircle the quartering bearing hole have been seted up on first part, second part and the third part assemblage wholly, split type box processing method of reposition of redundant personnel includes following step:
step S1: roughly milling the joint surfaces of all parts of the box body;
step S2: assembling all the parts into the box body to perform integral scribing, disassembling the box body, and performing semi-finish milling on the joint surface by taking the integral scribing as a reference;
step S3: drilling a reference pin hole and a connecting bolt hole in each component;
step S4: assembling a second part, the third part and 1 first part, fixing the second part, the third part and the 1 first part into a whole through the connecting bolt holes, integrally installing the second part, the third part and the 1 first part on a boring machine workbench, roughly machining the four-split flow bearing holes, then assembling the other first part and the whole into the box body, and roughly machining the eight-split flow bearing through holes;
step S5: disassembling the box body, removing stress, aligning by taking the reference pin hole as a reference, and finely milling each joint surface;
step S6: assembling the components, and semi-finely boring the holes according to the position error among the hole systems;
step S7: and (3) eliminating the machining stress of the box body by vibration, precisely measuring the actual coordinate value of each hole and the deviation of the actual position and the ideal position of each hole, calculating the numerical value and the direction of the deviation of the coordinate value of each hole, and compensating the numerical control boring machine program according to the deviation to precisely bore each hole.
In a specific embodiment, the step S1 specifically includes: and (4) drawing a processing line of the combined surface of each part by taking the non-processed surface as a rough reference, roughly milling each combined surface and reserving processing allowance.
In another specific embodiment, the step S2 specifically includes: assembling all the components, ensuring that the components are not staggered in appearance after being assembled, integrally scribing on the box body, making the same pair of alignment marks, and semi-finish milling the joint surfaces of all the components respectively by taking the integral scribing as a reference.
In another specific embodiment, the machining of the four-split bearing holes in step S4 is specifically: and sequentially processing a first reference hole, a second reference hole and a third reference hole from one side to the other side of the box body, and setting a processing coordinate system to process the four-shunt bearing hole and the corresponding end face according to the axial lines of the second reference hole and the third reference hole.
In another specific embodiment, the processing of the eight-split bearing through hole in step S4 specifically includes: and setting a machining coordinate system according to the axial lines of the first reference hole and the second reference hole, roughly boring each end face, and machining the through hole of the eight-shunt bearing.
In another specific embodiment, the assembling of each component in step S6 is to assemble the box body again according to the same pair of alignment marks, so as to ensure that the deviations of the generatrices on both sides of the joint surface of each bearing hole are consistent, and meanwhile, the fasteners fastening the box body hit the torque according to the calculated required value, thereby simulating the use state of the box body.
In another embodiment, the positional error between hole series in step S6 is decomposed into a center-to-center distance error of holes, a run-out error of holes, a coaxiality error of holes on the same axis, a perpendicularity error of hole end faces to the axis, a parallelism error between hole series, and an angle error between hole series.
In another specific embodiment, the semi-finish boring of each hole in the step S6 is performed by semi-finish boring by means of rotation of a spindle of the boring machine and feeding of the worktable.
In another specific embodiment, the fine boring of each hole in the step S7 is performed by rotating the main shaft of the boring machine and feeding the worktable.
The various embodiments according to the invention can be combined as desired, and the embodiments obtained after these combinations are also within the scope of the invention and are part of the specific embodiments of the invention.
According to the technical scheme, the reference pin hole is machined during rough machining, and alignment is carried out subsequently by taking the reference pin hole as a reference, so that the alignment precision is improved, and further, the position precision of the bearing hole of the box body is improved; after the four-shunt bearing hole and the eight-shunt bearing through hole are added, the box body is disassembled to remove stress, so that deformation is avoided, and the position precision of the bearing hole is further improved; semi-finish boring each hole according to the position error between the hole systems, fully considering the influence caused by the error, and further improving the position precision of the bearing hole; after semi-finishing, vibration stress removal is added, the machining stress is fully eliminated, and the machining precision of the box body is improved; and during finish machining, the position coordinates of each bearing hole are compensated by means of three coordinates, so that the position precision is improved. In conclusion, the invention improves the position precision of the bearing hole of the box body.
In order to achieve the second object, the present invention provides the following technical solutions:
a multi-split flow split type box body is processed by adopting the processing method of the multi-split flow split type box body.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without performing novelty work.
FIG. 1 is a schematic structural view of a multi-split flow box processed by the multi-split flow box processing method of the present invention;
FIG. 2 is a schematic sectional view A-A of FIG. 1;
FIG. 3 is a flow chart of a method for processing a multi-split box according to the present invention.
In the figure:
the bearing comprises a first component 1, a second component 2, a third component 3, a four-shunt bearing hole 4 and an eight-shunt bearing through hole 5.
Detailed Description
In order to make the technical solutions of the present invention better understood by those skilled in the art, the present invention will be further described in detail with reference to the accompanying fig. 1-3 and the detailed description.
On the one hand, the invention discloses a method for processing a multi-split box body, which is shown in figure 3. The processing method of the multi-split box body is used for processing the multi-split box body.
The split type box of reposition of redundant personnel is the box of arbitrary a plurality of parallel holes, and this embodiment uses the split type box of reposition of redundant personnel to include 4 four shunt bearing holes 4 and 8 eight shunt bearing through-holes 5 as the example.
Split type box of reposition of redundant personnel includes first part 1, second part 2 and third part 3, the number of first part 1 and second part 2 is 2, the number of third part 3 is 1, 2 assemblage are in the both sides of third part 3, 2 first part 1 assemblage respectively is in the both sides of second part 2, 4 quartering flow bearing hole 4 have been seted up on the whole of second part 2 and the 3 assemblage of third part, quartering flow bearing hole 4 is the blind hole, first part 1, 8 eight reposition of redundant personnel bearing through-holes 5 that encircle quartering flow bearing hole 4 have been seted up on the whole of second part 2 and the 3 assemblage of third part.
Specifically, the processing method of the multi-split box body comprises the following steps:
step S1: roughly milling the joint surfaces of all parts of the box body.
Specifically, the invention discloses a method for drawing a joint surface processing line by taking a non-processing surface as a rough reference for each part, roughly milling each joint surface and reserving processing allowance.
The respective components are a first component 1, a second component 2 and a third component 3.
Step S2: and assembling all the parts into a box body to perform integral scribing, disassembling the box body, and performing semi-finish milling on a joint surface by taking the integral scribing as a reference.
Assembling all the components, ensuring that the appearance of each component is not misplaced after the components are assembled, integrally marking on the box body, making the same pair of alignment marks, and respectively semi-finish milling the joint surfaces of all the components by taking the integral marking as a reference.
Step S3: and drilling a reference pin hole and a connecting bolt hole in each component.
And the subsequent processing takes the reference pin hole as a reference to align and process.
Step S4: the second component 2, the third component 3 and 1 first component 1 are assembled and fixed into a whole, the second component and the third component are installed on a boring machine workbench, a four-shunt bearing hole 4 is roughly machined, the other first component 1 and the whole are assembled into a box body, and an eight-shunt bearing through hole 5 is roughly machined.
The four-shunt bearing hole 4 is a blind hole, the depth of the four-shunt bearing hole exceeds 1000mm, and the measurement is not easy in the machining process. Therefore, the first component 1 is only installed on the bottom 1, and is assembled after the four-flow-dividing bearing hole 4 is subjected to rough boring processing, so that the processing process measurement is convenient. The second component 2, the third component 3 and the bottom 1 first component 1 are assembled in line with the center line, assembled into a whole by installing bolts through connecting bolt holes and integrally installed on a boring machine workbench.
Firstly roughly machining a four-split bearing hole 4 on a boring machine, then assembling the other first component 1 positioned at the top and the whole body (the whole body is the whole body formed by assembling the second component 2, the third component 3 and the 1 first component 1 at the bottom) into a box body, and machining an eight-split bearing through hole 5.
The four-shunt bearing hole 4 is processed by the following steps: and a first reference hole A, a second reference hole B and a third reference hole C are sequentially processed from one side to the other side of the box body, and a processing coordinate system is arranged by the axial lead of the second reference hole B and the axial lead of the third reference hole C to process the four-split bearing hole 4 and the corresponding end face. The corresponding end face is the end face where the four-flow-bearing hole 4 is located.
The processing of the eight-shunt bearing through hole 5 specifically comprises the following steps: and setting a machining coordinate system by using the axial leads of the first reference hole A and the second reference hole B, roughly boring each end face, and machining an eight-shunt bearing through hole 5.
Step S5: and (4) disassembling the box body, removing stress, aligning by taking the reference pin hole as a reference, and finely milling each joint surface.
The first, second and third parts 1, 2, 3 of the box are removed and the stress is relieved respectively.
Step S6: assembling the components, and semi-finely boring the holes according to the position error among the hole systems.
Specifically, the invention discloses that each component is assembled into a box body again according to the same pair of alignment marks, and the deviation of the bus at the two sides of the joint surface of each bearing hole is ensured to be consistent. Meanwhile, a fastening piece for fastening the box body beats a moment according to a numerical value required by calculation, and the use state of the box body is simulated. Because the box body simultaneously comprises the parallel hole system and the coaxial hole system, the position degree error is a comprehensive requirement, and the position degree between the hole systems must be comprehensively considered, including the orientation error, the positioning error and the jumping error. According to the definition of the position error, the precision is decomposed into 6 precision in the processing process, namely the position error among the hole systems comprises the center distance error of each hole, the jumping error of each hole, the coaxiality error of each hole on the same axis, the verticality error of the end face of each hole to the axis, the parallelism error among the hole systems and the angle error among the hole systems, the processing process is convenient to control, and the processing quality is ensured.
The invention particularly discloses semi-fine boring of each hole, which is to adopt the rotation of a spindle of a boring machine and carry out semi-fine boring in a feeding mode of a workbench. Respectively controlling semi-fine boring (including fine boring) according to 6 precisions, re-machining the benchmarks A, B and C, then semi-fine boring each hole, and reserving fine boring machining allowance; because the span of the bearing hole is long, the machining mode adopts the mode of main shaft rotation and workbench feeding, the extension length of the boring rod is unchanged, and the rotation error of the boring rod cannot be increased in the boring process, so that the boring precision is ensured.
Step S7: the machining stress of the box body is eliminated through vibration, the actual coordinate value of each hole and the deviation between the actual position and the ideal position of each hole are measured accurately, the numerical value and the direction of the deviation of the coordinate value of each hole are calculated, and the numerical control boring machine program is compensated according to the deviation to bore each hole accurately.
The stress of the vibration elimination box body can fully eliminate the processing stress and improve the processing precision of the box body.
And calculating the numerical value and the direction of the coordinate value deviation of each hole, compensating the program of the numerical control boring machine according to the deviation during fine boring, and finely boring the finished products of each hole, thereby improving the position accuracy of the bearing hole.
According to the method for processing the multi-split box body, the reference pin hole is processed during rough processing, alignment is carried out subsequently by taking the reference pin hole as a reference, alignment precision is improved, and further bearing hole position precision of the box body is improved; after the four shunt bearing holes 4 and the eight shunt bearing through holes 5 are added, the box body is disassembled to remove stress, so that deformation is avoided, and the position precision of the bearing holes is further improved; semi-finish boring each hole according to the position error between the hole systems, fully considering the influence caused by the error, and further improving the position precision of the bearing hole; after semi-finishing, vibration stress removal is added, the machining stress is fully eliminated, and the machining precision of the box body is improved; and during finish machining, the position coordinates of each bearing hole are compensated by means of three coordinates, so that the position precision is improved. In conclusion, the invention improves the position precision of the bearing hole of the box body.
The invention also discloses a multi-split flow split type box body which is processed by adopting a multi-split flow split type box body processing method. The box body adopts an up-down split structure, and the box body assembly consists of five parts which are vertically symmetrical.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to the embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and inventive features disclosed herein.
Claims (10)
1. The utility model provides a split type box processing method of reposition of redundant personnel, its characterized in that for processing split type box of reposition of redundant personnel, split type box of reposition of redundant personnel includes first part, second part and third part, the number of first part with the second part is 2, the number of third part is 1, 2 the second part assemblage is in the both sides of third part, 2 the first part assemblage is respectively in 2 the outside of second part, 4 quartering bearing holes have been seted up to second part and the third part assemblage wholly, quartering bearing hole is the blind hole, 8 eight reposition of redundant personnel bearing through-holes that encircle quartering bearing hole have been seted up to first part, second part and third part assemblage wholly, split type box processing method of reposition of redundant personnel includes the following step:
step S1: roughly milling the joint surfaces of all parts of the box body;
step S2: assembling all the parts into the box body to perform integral scribing, disassembling the box body, and performing semi-finish milling on the joint surface by taking the integral scribing as a reference;
step S3: drilling a reference pin hole and a connecting bolt hole in each component;
step S4: assembling a second part, the third part and 1 first part, fixing the second part, the third part and the 1 first part into a whole through the connecting bolt holes, integrally installing the second part, the third part and the 1 first part on a numerical control boring machine workbench, roughly machining the four-split flow bearing holes, then assembling the other first part and the whole into the box body, and roughly machining the eight-split flow bearing through holes;
step S5: disassembling the box body, removing stress, aligning by taking the reference pin hole as a reference, and finely milling each joint surface;
step S6: assembling the components, and semi-finely boring the holes according to the position error among the hole systems;
step S7: and (3) eliminating the machining stress of the box body by vibration, precisely measuring the actual coordinate value of each hole and the deviation of the actual position and the ideal position of each hole, calculating the numerical value and the direction of the deviation of the coordinate value of each hole, and compensating the numerical control boring machine program according to the deviation to precisely bore each hole.
2. The processing method of the multi-split box body according to claim 1, wherein the step S1 specifically comprises: and (4) drawing a processing line of the combined surface of each part by taking the non-processed surface as a rough reference, roughly milling each combined surface and reserving processing allowance.
3. The processing method of the multi-split box body according to claim 1, wherein the step S2 specifically comprises: assembling all the components, ensuring that the components are not staggered in appearance after being assembled, integrally scribing on the box body, making the same pair of alignment marks, and semi-finish milling the joint surfaces of all the components respectively by taking the integral scribing as a reference.
4. The processing method of the multi-split box body according to claim 1, wherein the processing of the quarter-flow bearing holes in the step S4 is specifically: and sequentially processing a first reference hole, a second reference hole and a third reference hole from one side to the other side of the box body, and setting a processing coordinate system to process the four-shunt bearing hole and the corresponding end face according to the axial lines of the second reference hole and the third reference hole.
5. The processing method of the multi-split box body according to claim 4, wherein the processing of the eight-split bearing through hole in the step S4 is specifically: and setting a machining coordinate system according to the axial lines of the first reference hole and the second reference hole, roughly boring each end face, and machining the through hole of the eight-shunt bearing.
6. The processing method of the multi-split box body according to claim 3, wherein the assembling of the components in the step S6 is to reassemble the box body according to the same pair of alignment marks, so as to ensure that the deviations of the generatrices on both sides of the joint surface of each bearing hole and each bearing through hole are consistent, and meanwhile, the fasteners fastening the box body hit the torque according to the numerical value required by calculation, so as to simulate the use state of the box body.
7. The processing method of a multi-split box according to claim 1, wherein the positional error between the hole systems in step S6 is decomposed into a center distance error of each hole, a run-out error of each hole, a coaxiality error of each hole on the same axis, a perpendicularity error of the hole end to the axis, a parallelism error between the hole systems, and an angle error between the hole systems.
8. The processing method of the multi-split box body according to claim 1, wherein the semi-finish boring of each hole in the step S6 is performed by rotating a main shaft of the boring machine and performing the semi-finish boring by feeding the worktable.
9. The processing method of the multi-split box body according to any one of claims 1 to 8, wherein the fine boring of each hole in the step S7 is specifically performed by adopting a spindle rotation of the boring machine and a feeding manner of the workbench.
10. A multi-split box, characterized in that it is manufactured by the method of any one of claims 1-9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010004790.6A CN111112955B (en) | 2020-01-03 | 2020-01-03 | Multi-split-flow split type box body and processing method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010004790.6A CN111112955B (en) | 2020-01-03 | 2020-01-03 | Multi-split-flow split type box body and processing method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111112955A CN111112955A (en) | 2020-05-08 |
| CN111112955B true CN111112955B (en) | 2021-09-24 |
Family
ID=70507630
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010004790.6A Active CN111112955B (en) | 2020-01-03 | 2020-01-03 | Multi-split-flow split type box body and processing method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111112955B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112676603B (en) * | 2020-11-16 | 2023-08-18 | 中国航发西安动力控制科技有限公司 | T-shaped shell assembly combined machining method |
| CN114012506B (en) * | 2021-12-01 | 2023-02-17 | 山西柴油机工业有限责任公司 | Machining precision guaranteeing method for large complex box body |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA2572159C (en) * | 2006-12-20 | 2014-11-25 | Namco Machine & Gear Works Ltd. | Method of forming a gearbox using hollow structural steel |
| DE102007033652A1 (en) * | 2007-07-17 | 2009-01-29 | Sew-Eurodrive Gmbh & Co. Kg | Gearbox series and method of manufacturing gearboxes |
| CN101813181A (en) * | 2010-04-15 | 2010-08-25 | 南通振华重型装备制造有限公司 | Manufacturing method of double split flow speed reducer |
| CN102935584B (en) * | 2012-11-21 | 2014-11-05 | 武汉船用机械有限责任公司 | Method for machining oil distributor shell |
| CN103464980B (en) * | 2013-09-13 | 2016-04-13 | 郑州机械研究所 | The processing technology of many frame panel combined type parallel-axes gears box body |
| CN104308460B (en) * | 2014-08-26 | 2017-04-05 | 武汉船用机械有限责任公司 | A kind of housing of the processing method and oil carrier Cargo Oil Pump of the housing of oil carrier Cargo Oil Pump |
| CN105750601B (en) * | 2016-04-06 | 2017-08-15 | 中信重工机械股份有限公司 | A kind of processing method for improving the large gearbox box body device accuracy of form and position |
| CN107378497A (en) * | 2017-09-08 | 2017-11-24 | 南京高精船用设备有限公司 | Three dissection type high inclination-angles tilt processing and detecting system and its processing and the detection method of casing |
| CN108131423A (en) * | 2017-12-15 | 2018-06-08 | 内蒙古北方重工业集团有限公司 | A kind of vertical split low noise gearbox and processing method |
-
2020
- 2020-01-03 CN CN202010004790.6A patent/CN111112955B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN111112955A (en) | 2020-05-08 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US9925625B2 (en) | Assembly of an aircraft structure assembly without shimming, locating fixtures or final-hole-size drill jigs | |
| CN111112955B (en) | Multi-split-flow split type box body and processing method thereof | |
| CN108723414B (en) | Machining process for ensuring position tolerance of main hole system of precision box part of numerical control machine tool | |
| CN106493399A (en) | A kind of method that horizontal jig boring machine rotates 180 ° of processing precise parts | |
| US20160327937A1 (en) | Model-based definition for machining aircraft parts | |
| CN113894514A (en) | Reduction gearbox machining process | |
| US10899476B1 (en) | Model-based definition for machining aircraft parts | |
| CN108705381B (en) | Alignment method and alignment device for numerical control machining of deep groove side holes | |
| US20190360568A1 (en) | Universal Retrofit Kit Apparatus and Methods Thereof | |
| CN206597940U (en) | A kind of Combined drill die craft equipment for being used to drill in housing connection member | |
| CN111015246B (en) | Method for determining assembly parallelism of ball linear guide rail based on dynamic characteristics of feeding system of numerical control machine tool | |
| Michalik et al. | Optimizing Component Production with Multi-axis Turning Technology | |
| CN115570339B (en) | Disc rotating shaft mechanical manufacturing method and system with high circumferential indexing spacing precision | |
| CN117733473B (en) | Boring and repairing method for camshaft flange Kong Jingxiang | |
| CN111644814B (en) | Wind power rotor machining method | |
| CN112894287B (en) | Intermediate bearing hole machining process and machining equipment | |
| CN112756717B (en) | Repositioning method for numerical control milling thread | |
| CN102423860A (en) | Fixture for milling reverser holes on internal circulation ball nut and locating machining method thereof | |
| CN113352058B (en) | High-precision part machining method | |
| CN217316045U (en) | Five-axis engraving and milling machine with grating ruler | |
| CN214722481U (en) | Workpiece positioning device with good structural rigidity | |
| CN219026661U (en) | Composite clamp for cylindrical part | |
| CN217193807U (en) | Slider machine tool machining device for seamless steel tube cold rolling mill | |
| CN105033706A (en) | Machining method of shaft part key grooves with multiple specifications and multiple angles | |
| Faskhieva et al. | Rebuilding of heavy machine tools |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |