CN105290713A - Manufacturing process of large polyhedron box component - Google Patents
Manufacturing process of large polyhedron box component Download PDFInfo
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- CN105290713A CN105290713A CN201410230803.6A CN201410230803A CN105290713A CN 105290713 A CN105290713 A CN 105290713A CN 201410230803 A CN201410230803 A CN 201410230803A CN 105290713 A CN105290713 A CN 105290713A
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Abstract
The invention relates to the technical field of machine manufacturing, in particular to a manufacturing process of a large polyhedron box component. The process comprises the process steps of preparing of a rough casting of a box (1), welding of process blocks, marking, rough turning, rough milling, heavy boring, ultrasonic flaw detection and artificial aging, turning, semi-finish milling, assembling, finish turning, finish-milling, fine boring and removing of the process blocks. A transition claw A (17) and a transition claw B (18) are arranged on the corresponding included angles of the two sides of the box (1), so that using in the clamping process is facilitated. Combined machining is carried out on relevant parts in a first hole system and a spindle sleeve, and it is guaranteed that in the final use state, the requirement for the depth of parallelism of two hole systems is 0.02 mm, the requirement for coaxiality is 0.02 mm, the requirement for hole cylindricity is 0.02 mm, and the requirement for perpendicularity of the hole systems and the datum plane is 0.02 mm
Description
[technical field]the invention belongs to machinery manufacturing technology field, especially relate to a kind of manufacture craft of large-scale multiple edge body box part.
[background technology]
Known, manufacturing technology for large-scale multiple edge body casing requires higher, due to the complex structure of casing, multiple edge body casing is made up of multiple side, angle between every two sides requires accurately, angle tolerance is ± 5 ˊ, side is higher with distance between center line coherence request, as shown in Figure 1, multiple edge body box house comprises two hole systems, Xi HeII hole, I hole is, two hole system depth of parallelisms are 0.02mm, within each hole axiality requires 0.02mm, the manufacture of high-precision large-scale multiple edge body box part, there is a lot of difficult point man-hour adding, how to be installed during turning, how to ensure, how to measure the angle between every two sides, how to ensure the uniformity of each side to the distance of center line, how to ensure the depth of parallelism etc. of two hole systems, become the basic demand of those skilled in the art.
[summary of the invention]
In order to overcome the deficiency in background technology, the invention discloses a kind of manufacture craft of large-scale multiple edge body box part, solve large-scale multiple edge body casing turning to reach, be installed, angular surveying problem and ensure final utilization state time holes system axiality require higher object.
In order to realize the object of foregoing invention, the present invention adopts following technical scheme:
A kind of manufacture craft of large-scale multiple edge body box part, described technique comprise prepare the rough casting of casing, Welding block, line, rough turn, rough mill, heavy boring, ultrasonic examination and artificial aging, turning, half finish-milling, assembling, finish turning, finish-milling, right boring and removal technique block processing step, concrete operation step is as follows:
1) rough casting of casing is prepared:
Prepare the tank body blank foundry goods that profile is hexagonal prism shape;
2) Welding block
Be welded with technique block F and technique block E respectively in the both sides of side D, the both sides in the face between side F and side C are welded with technique block C and technique block D respectively, and the both sides in the face between side E and side C are welded with technique block A and technique block B respectively;
3) rule
After checking each size surplus of blank, draw the rice word center line of casing, each working position is rule;
4) rough turn
System end face C, I upper surface, hole, system end face B, I hole, I hole system end face A, I hole in rough turn I hole system, I hole system endoporus A, I hole system endoporus B and I hole system endoporus C, and leave 10mm allowance;
5) rough mill, heavy boring
Rough mill side C, side D, side E and side F by line, Xi Zhongge hole, heavy boring II hole and end face thereof, stay 10mm allowance;
6) ultrasonic examination and artificial aging
7) turning
Turning I hole is, levelling upper surface, centering I hole system endoporus B, the center of 1 hole system is overlapped with the lathe centre of gyration, centering franchise is 0.05mm, and system endoporus A, I hole, I hole system end face A, I hole system end face of finish turning casing 1, I hole system endoporus B and I hole system end face C, be worked into figure paper size; All the other positions of the I hole system of half finish turning casing, stay 3mm allowance; The angle that the both sides of casing are corresponding arranges transition claw A, transition claw B, conveniently with when being installed uses, turning centering band on I hole system endoporus B in the system of I hole, adjust during dress and level up upper surface, by the centering band centering center of turning, franchise is 0.05mm;
8) half finish-milling
Upper surface, levelling I hole, centering I hole system endoporus B, the center that I hole is and the center superposition of machine tool rotary working table, centering franchise is 0.05mm; Milling side C, side D, side E, side F, miller skill block A, technique block B, technique block C, technique block D, technique block E, technique block F and other non-key position, and stay 3mm allowance; Angle between every two sides is 60 ° ± 5 ˊ;
9) assemble
Correlated parts in the system of assembling I hole, comprises rack sleeve;
10) finish turning
With the upper surface, I hole of casing 1 and I hole system endoporus for centering benchmark, centering franchise 0.01mm/m, adopt transition claw and transition claw assistant assembleing and fixing, system end face B, I upper surface, hole, I hole system end face A, I hole in the I hole system of turnery processing casing and rack sleeve, I hole system endoporus B; I hole system endoporus A, I hole system end face C and I hole system endoporus C, adjust dress add man-hour still with the upper surface, I hole of casing for centering benchmark, centering franchise is 0.01mm/m.With the endoporus of the rack sleeve machined for benchmark centering center, centering franchise is 0.02mm;
11) finish-milling
Check angle 60 ° ± 5 ˊ between every two sides, check the distance of every side to center line, meet the requirements, correct after, finish-milling processing on digital-control boring-milling machine again, finish-milling side C, side D, side E, side F, technique block A, technique block B, technique block C, technique block D, technique block E, technique block F and other non-key position, with the upper surface, I hole of casing for levelling benchmark, with the endoporus centering centre of gyration of rack sleeve, the center that I hole is and the center superposition of machine tool rotary working table, centering franchise is 0.02mm;
12) right boring
Xi Ge hole, right boring II hole and end face thereof, digital-control boring-milling machine cutter shaft is aimed in the upper surface, I hole of casing, looks for directly with the axle center of rack sleeve endoporus in I hole system hole, levelling, ensures the depth of parallelism 0.02mm being with II hole;
13) remove technique block A, technique block B, technique block C, technique block D, technique block E and technique block F, namely complete the making of large-scale multiple edge body box part.
The manufacture craft of described large-scale multiple edge body box part, in welding step, welding procedure block is spot welding.
The manufacture craft of described large-scale multiple edge body box part, in finish-milling and right boring step, digital-control boring-milling machine is high-precision digital-control boring-milling machine.
Owing to adopting technique scheme, the present invention has following beneficial effect:
The manufacture craft of large-scale multiple edge body box part of the present invention, technique block F14 and technique block E13 is welded with respectively by the both sides at side D, the both sides in the face between side F and side C are welded with technique block C11 and technique block D12 respectively, the both sides in the face between side E and side C are welded with technique block A9 and technique block B10 respectively, and the machining angle solving each side of multiple edge body casing measures problem; The angle that 1 both sides of casing are corresponding arranges transition claw A17, transition claw B18, conveniently with when being installed uses; Correlated parts in by I hole being and rack sleeve carry out Combined machining, ensure that the depth of parallelism of holes system during final utilization state requires to reach 0.02mm, axiality requires to reach 0.02mm, and hole cylindricity requires to reach 0.02mm, requires to reach 0.02mm with datum level perpendicularity.
[accompanying drawing explanation]
Fig. 1 is structural representation of the present invention;
Fig. 2 is the top view of casing of the present invention;
Fig. 3 is the A-A sectional view of Fig. 2 of the present invention;
Fig. 4 is the top view that the present invention is welded with the casing of technique block;
Fig. 5 is the casing B-B position sectional view in the diagram that the present invention is equipped with rack sleeve;
Fig. 6 is the top view of the present invention's casing when having a transition claw assistant assembleing and fixing;
In the drawings: 1, casing; 2, I hole system end face A; 3, I hole system endoporus A; 4, I hole system end face B; 5, I hole system endoporus B; 6, I hole system end face C; 7, I hole system endoporus C; 8, upper surface, I hole; 9, technique block A; 10, technique block B; 11, technique block C; 12, technique block D; 13, technique block E; 14, technique block F; 15, rack sleeve; 16, endoporus; 17, transition claw A; 18, transition claw B.
[detailed description of the invention]
With reference to the following examples, the present invention can be explained in more detail; But the present invention is not limited to these embodiments.
The manufacture craft of the large-scale multiple edge body box part by reference to the accompanying drawings described in 1-6, described technique comprise prepare the rough casting of casing 1, Welding block, line, rough turn, rough mill, heavy boring, ultrasonic examination and artificial aging, turning, half finish-milling, assembling, finish turning, finish-milling, right boring and removal technique block processing step, concrete operation step is as follows:
1) rough casting of casing 1 is prepared:
Prepare casing 1 rough casting that profile is hexagonal prism shape;
2) Welding block
Technique block F14 and technique block E13 is welded with respectively in the both sides of side D, the both sides in the face between side F and side C are welded with technique block C11 and technique block D12 respectively, and the both sides in the face between side E and side C are welded with technique block A9 and technique block B10 respectively;
3) rule
After checking each size surplus of blank, draw the rice word center line of casing, each working position is rule;
4) rough turn
System end face C6, I upper surface, hole, system end face B4, I hole, I hole system end face A2, I hole 8 in rough turn I hole system, I hole system endoporus A3, I hole system endoporus B5 and I hole system endoporus C7, and leave 10mm allowance;
5) rough mill, heavy boring
Rough mill side C, side D, side E and side F by line, Xi Zhongge hole, heavy boring II hole and end face thereof, stay 10mm allowance;
6) ultrasonic examination and artificial aging
7) turning
Turning I hole is, levelling upper surface, centering I hole system endoporus B5, the center of 1 hole system is overlapped with the lathe centre of gyration, centering franchise is 0.05mm, and system endoporus A3, I hole, I hole system end face A2, I hole system end face 4 of finish turning casing 1, I hole system endoporus B5 and I hole system end face C6, be worked into figure paper size; All the other positions of the I hole system of half finish turning casing 1, stay 3mm allowance; The angle that 1 both sides of casing are corresponding arranges transition claw A17, transition claw B18, conveniently with when being installed uses, turning centering band on I hole system endoporus B5 in the system of I hole, adjust during dress and level up upper surface, by the centering band centering center of turning, franchise is 0.05mm;
8) half finish-milling
Upper surface, levelling I hole 8, centering I hole system endoporus B5, the center that I hole is and the center superposition of machine tool rotary working table, centering franchise is 0.05mm; Milling side C, side D, side E, side F, miller skill block A9, technique block B10, technique block C11, technique block D12, technique block E13, technique block F14 and other non-key position, and stay 3mm allowance; Angle between every two sides is 60 ° ± 5 ˊ;
9) assemble
Correlated parts in the system of assembling I hole, comprises rack sleeve 15;
10) finish turning
Be centering benchmark with the upper surface, I hole 8 of casing 1 and I hole system endoporus 5, centering franchise 0.01mm/m, adopt transition claw 17 and transition claw 18 assistant assembleing and fixing, system end face B4, I upper surface, hole, I hole system end face A2, I hole 8 in the I hole system of turnery processing casing 1 and rack sleeve 15, I hole system endoporus B5; I hole system endoporus A3, I hole system end face C6 and I hole system endoporus C7, adjust dress add man-hour still with the upper surface, I hole 8 of casing 1 for centering benchmark, centering franchise is 0.01mm/m.With the endoporus 16 of the rack sleeve 15 machined for benchmark centering center, centering franchise is 0.02mm;
11) finish-milling
Check the angle 6 between every two sides
0 ° ± 5 ˊ, check the distance of every side to center line, meet the requirements, correct after, finish-milling processing on digital-control boring-milling machine again, finish-milling side C, side D, side E, side F, technique block A9, technique block B10, technique block C11, technique block D12, technique block E13, technique block F14 and other non-key position, with the upper surface, I hole 8 of casing 1 for levelling benchmark, with the endoporus 11 centering centre of gyration of rack sleeve 10, the center that I hole is and the center superposition of machine tool rotary working table, centering franchise is 0.02mm;
12) right boring
Xi Ge hole, right boring II hole and end face thereof, digital-control boring-milling machine cutter shaft is aimed in the upper surface, I hole 8 of casing 1, looks for directly with the axle center of rack sleeve 15 endoporus 16 in I hole system hole, levelling, ensures the depth of parallelism 0.02mm being with II hole.
13) remove technique block A9, technique block B10, technique block C11, technique block D12, technique block E13 and technique block F14, namely complete the making of large-scale multiple edge body box part.
The manufacture craft of described large-scale multiple edge body box part, in welding step, welding procedure block is spot welding.
The manufacture craft of described large-scale multiple edge body box part, in finish-milling and right boring step, digital-control boring-milling machine is high-precision digital-control boring-milling machine.
Embodiment 1:
1) rough casting of casing 1 is prepared:
Prepare casing 1 rough casting that profile is hexagonal prism shape;
2) Welding block
Technique block F14 and technique block E13 is welded with respectively in the both sides of side D, the both sides in the face between side F and side C are welded with technique block C11 and technique block D12 respectively, the both sides in the face between side E and side C are welded with technique block A9 and technique block B10 respectively, technique block is used for measuring, checking rotary table angle precision, ensure that the angle between each side is all within the scope of 60 ° ± 5 ˊ, the welding manner of technique block is spot welding;
3) rule
After checking each size surplus of blank, draw the rice word center line of casing, each working position is rule;
4) rough turn
System end face C6, I upper surface, hole, system end face B4, I hole, I hole system end face A2, I hole 8 in rough turn I hole system, I hole system endoporus A3, I hole system endoporus B5 and I hole system endoporus C7, and leave 10mm allowance, when being installed, employing transition claw 17, transition claw 18 are installed, in the system of I hole, turning centering band on I hole system endoporus 5, adjusts the centering band centering pressing turning during dress.；
5) rough mill, heavy boring
Rough mill side C, side D, side E and side F by line, Xi Zhongge hole, heavy boring II hole and end face thereof, stay 10mm allowance;
6) ultrasonic examination and artificial aging
7) turning
Turning I hole is, levelling upper surface, centering I hole system endoporus B5, the center of 1 hole system is overlapped with the lathe centre of gyration, centering franchise is 0.05mm, and system endoporus A3, I hole, I hole system end face A2, I hole system end face 4 of finish turning casing 1, I hole system endoporus B5 and I hole system end face C6, be worked into figure paper size; All the other positions of the I hole system of half finish turning casing 1, stay 3mm allowance; The angle that 1 both sides of casing are corresponding arranges transition claw A17, transition claw B18, conveniently with when being installed uses, turning centering band on I hole system endoporus B5 in the system of I hole, adjust during dress and level up upper surface, by the centering band centering center of turning, franchise is 0.05mm;
8) half finish-milling
Upper surface, levelling I hole 8, centering I hole system endoporus B5, the center that I hole is and the center superposition of machine tool rotary working table, centering franchise is 0.05mm; Milling side C, side D, side E, side F, miller skill block A9, technique block B10, technique block C11, technique block D12, technique block E13, technique block F14 and other non-key position, and stay 3mm allowance; To be 60 ° ± 5 ˊ be angle between every two sides ensures by the rotating accuracy of platen, needs operation block A9, technique block B10, technique block C11, technique block D12, technique block E13 and technique block F14 subsidiary angle;
9) assemble
Correlated parts in the system of assembling I hole, comprises rack sleeve 15;
10) finish turning
Be centering benchmark with the upper surface, I hole 8 of casing 1 and I hole system endoporus 5, centering franchise 0.01mm/m, adopt transition claw 17 and transition claw 18 assistant assembleing and fixing, system end face B4, I upper surface, hole, I hole system end face A2, I hole 8 in the I hole system of turnery processing casing 1 and rack sleeve 15, I hole system endoporus B5; I hole system endoporus A3, I hole system end face C6 and I hole system endoporus C7, adjust dress add man-hour still with the upper surface, I hole 8 of casing 1 for centering benchmark, centering franchise is 0.01mm/m.With the endoporus 16 of the rack sleeve 15 machined for benchmark centering center, centering franchise is 0.02mm;
11) finish-milling
Check angle 60 ° ± 5 ˊ between every two sides, check the distance of every side to center line, meet the requirements, correct after, finish-milling processing on digital-control boring-milling machine again, finish-milling side C, side D, side E, side F, technique block A9, technique block B10, technique block C11, technique block D12, technique block E13, technique block F14 and other non-key position, with the upper surface, I hole 8 of casing 1 for levelling benchmark, with the endoporus 11 centering centre of gyration of rack sleeve 10, the center that I hole is and the center superposition of machine tool rotary working table, centering franchise is 0.02mm; Finish-milling side C, side D, side E, side F, technique block 1, technique block 2, technique block 3, technique block 4, technique block 5, technique block 6, first try processing, check angle 60 ° ± 5 ˊ between every two sides, check the distance of every side to center line, meet the requirements, correct after, just can complete finish-milling processing, otherwise will compensate angle of revolution, the processing cutting output of side is finely tuned;
12) right boring
Xi Ge hole, right boring II hole and end face thereof, digital-control boring-milling machine cutter shaft is aimed in the upper surface, I hole 8 of casing 1, looks for directly with the axle center of rack sleeve 15 endoporus 16 in I hole system hole, levelling, ensures the depth of parallelism 0.02mm being with II hole.
13) remove technique block A9, technique block B10, technique block C11, technique block D12, technique block E13 and technique block F14, namely complete the making of large-scale multiple edge body box part;
Side C, the side D of the large-scale multiple edge body box part completed, the flatness of side E and F are 0.01mm, perpendicularity is 0.02mm, roughness is Ra1.6, angle 60 ° ± 5 ˊ between every two sides, consistent with distance between center line, comprise I, II two hole systems in the blank inside of casing 1, II hole system is made up of Φ 200 ~ Φ 500 multiple hole, and each hole axiality is within 0.02mm; I hole system is made up of Φ 1000 ~ Φ 3000 multiple hole, and each hole axiality is 0.02mm, and hole cylindricity is 0.02mm, is 0.02mm with datum level perpendicularity, is 0.02mm with the II hole system depth of parallelism.
The embodiment selected in this article in order to open object of the present invention, currently thinks to be suitable for, but it is to be understood that the present invention is intended to comprise all changes belonging to the embodiment in this design and the scope of the invention and improvement.
Claims (3)
1. the manufacture craft of one kind large-scale multiple edge body box part, described technique comprise prepare casing (1) rough casting, Welding block, line, rough turn, rough mill, heavy boring, ultrasonic examination and artificial aging, turning, half finish-milling, assembling, finish turning, finish-milling, right boring and removal technique block processing step, it is characterized in that: concrete operation step is as follows:
1) rough casting of casing (1) is prepared:
Prepare casing (1) rough casting that profile is hexagonal prism shape;
2) Welding block
Connect previous step, technique block F(14 is welded with respectively in the both sides of side D) and technique block E(13), the both sides in the face between side F and side C are welded with technique block C(11 respectively) and technique block D(12), the both sides in the face between side E and side C are welded with technique block A(9 respectively) and technique block B(10);
3) rule
Connect previous step, after checking each size surplus of blank, draw the rice word center line of casing, each working position is rule;
4) rough turn
Connect previous step, I hole system end face A(2 in the system of rough turn I hole), I hole system end face B(4), I hole system end face C(6), upper surface, I hole (8), I hole system endoporus A(3), I hole system endoporus B(5) and I hole system endoporus C(7), and leave 10mm allowance;
5) rough mill, heavy boring
Connect previous step, rough mill side C, side D, side E and side F by line, Xi Zhongge hole, heavy boring II hole and end face thereof, stay 10mm allowance;
6) ultrasonic examination and artificial aging
7) turning
Connect previous step, turning I hole is, levelling upper surface, centering I hole system endoporus B(5), the center that I hole is overlaps with the lathe centre of gyration, centering franchise is 0.05mm, the I hole system end face A(2 of finish turning casing (1)), I hole system endoporus A(3), I hole system end face (4), I hole system endoporus B(5) and I hole system end face C(6), be worked into figure paper size; All the other positions of the I hole system of half finish turning casing (1), stay 3mm allowance; The angle that (1) both sides of casing are corresponding arranges transition claw A(17), transition claw B(18), conveniently with when being installed use, I hole system endoporus B(5 in the system of I hole) upper turning centering band, adjust when filling and level up upper surface, by the centering band centering center of turning, franchise is 0.05mm;
8) half finish-milling
Connect previous step, upper surface, levelling I hole (8), centering I hole system endoporus B(5), the center that I hole is and the center superposition of machine tool rotary working table, centering franchise is 0.05mm; Milling side C, side D, side E, side F, miller skill block A(9), technique block B(10), technique block C(11), technique block D(12), technique block E(13), technique block F(14) and other non-key position, and stay 3mm allowance; Angle between every two sides is 60 ° ± 5 ˊ;
9) assemble
Connect previous step, correlated parts in the system of assembling I hole, comprises rack sleeve 15;
10) finish turning
Connect previous step, with the upper surface, I hole (8) of casing 1 and I hole system endoporus (5) for centering benchmark, centering franchise 0.01mm/m, adopt transition claw (17) and transition claw (18) assistant assembleing and fixing, the I hole of turnery processing casing (1) and rack sleeve (15) be in I hole system end face A(2), I hole system end face B(4), upper surface, I hole (8), I hole system endoporus B(5); I hole system endoporus A(3), I hole system end face C(6) and I hole system endoporus C(7), adjust dress add man-hour still with the upper surface, I hole (8) of casing (1) for centering benchmark, centering franchise is 0.01mm/m;
With the endoporus of the rack sleeve machined (15) (16) for benchmark centering center, centering franchise is 0.02mm;
11) finish-milling
Connect previous step, check angle 60 ° ± 5 ˊ between every two sides, check the distance of every side to center line, meet the requirements, after correct, finish-milling processing on digital-control boring-milling machine again, finish-milling side C, side D, side E, side F, technique block A(9), technique block B(10), technique block C(11), technique block D(12), technique block E(13), technique block F(14) and other non-key position, with the upper surface, I hole (8) of casing (1) for levelling benchmark, with the endoporus of rack sleeve (10) (11) the centering centre of gyration, the center that I hole is and the center superposition of machine tool rotary working table, centering franchise is 0.02mm,
12) right boring
Connect previous step, Xi Ge hole, right boring II hole and end face thereof, digital-control boring-milling machine cutter shaft is aimed in the upper surface, I hole (8) of casing (1), looks for directly with the axle center of rack sleeve (15) endoporus (16) in I hole system hole, levelling, ensures the depth of parallelism 0.02mm being with II hole;
13) connect previous step, remove technique block A(9), technique block B(10), technique block C(11), technique block D(12), technique block E(13) and technique block F(14), namely complete the making of large-scale multiple edge body box part.
2. the manufacture craft of large-scale multiple edge body box part according to claim 1, is characterized in that: in Welding block step, the mode of welding procedure block is spot welding.
3. the manufacture craft of large-scale multiple edge body box part according to claim 1, it is characterized in that: in finish-milling and right boring step, digital-control boring-milling machine is high-precision digital-control boring-milling machine.
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| CN201410230803.6A CN105290713B (en) | 2014-05-29 | 2014-05-29 | A kind of manufacture craft of large-scale multiple edge body box part |
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| CN105750601A (en) * | 2016-04-06 | 2016-07-13 | 中信重工机械股份有限公司 | Machining method for improving form and position precision of large gearbox body device |
| CN106624620A (en) * | 2016-11-07 | 2017-05-10 | 武汉船用机械有限责任公司 | Processing method for large suspension bridge splay saddle |
| CN110303303A (en) * | 2019-07-15 | 2019-10-08 | 青岛鲁强模具有限公司 | A kind of pellet type heavy load processing method and system |
| CN111552230A (en) * | 2020-04-03 | 2020-08-18 | 中国航发哈尔滨东安发动机有限公司 | Single machine automatic alignment calculation-free processing method |
| CN113695856A (en) * | 2021-09-09 | 2021-11-26 | 贵州詹阳动力重工有限公司 | Machining method of rear connecting seat and rear connecting seat |
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| GB742923A (en) * | 1950-11-04 | 1956-01-04 | Illinois Tool Works | Improvements relating to the production of permanently assembled washers and nuts |
| CN102205479A (en) * | 2010-09-21 | 2011-10-05 | 南车戚墅堰机车有限公司 | Process for controlling deformation of axle-hung box of locomotive |
| CN102642114A (en) * | 2012-04-10 | 2012-08-22 | 中信重工机械股份有限公司 | Machining method of perpendicularly intersected hole system of speed reducer body |
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| CN105750601A (en) * | 2016-04-06 | 2016-07-13 | 中信重工机械股份有限公司 | Machining method for improving form and position precision of large gearbox body device |
| CN106624620A (en) * | 2016-11-07 | 2017-05-10 | 武汉船用机械有限责任公司 | Processing method for large suspension bridge splay saddle |
| CN110303303A (en) * | 2019-07-15 | 2019-10-08 | 青岛鲁强模具有限公司 | A kind of pellet type heavy load processing method and system |
| CN111496541A (en) * | 2019-07-15 | 2020-08-07 | 青岛鲁强模具有限公司 | Heavy-load chassis machining process |
| CN111552230A (en) * | 2020-04-03 | 2020-08-18 | 中国航发哈尔滨东安发动机有限公司 | Single machine automatic alignment calculation-free processing method |
| CN113695856A (en) * | 2021-09-09 | 2021-11-26 | 贵州詹阳动力重工有限公司 | Machining method of rear connecting seat and rear connecting seat |
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