CN110181229A - A kind of manufacturing method of ship and offshore equipment middle gear case - Google Patents
A kind of manufacturing method of ship and offshore equipment middle gear case Download PDFInfo
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- CN110181229A CN110181229A CN201910442855.2A CN201910442855A CN110181229A CN 110181229 A CN110181229 A CN 110181229A CN 201910442855 A CN201910442855 A CN 201910442855A CN 110181229 A CN110181229 A CN 110181229A
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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
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Abstract
The invention discloses the manufacturing method of a kind of ship and offshore equipment middle gear case, gear-box is a kind of ship and offshore equipment, platform cylinder type elevating mechanism.Gear-box always will appear out the problems such as shelves are excessive, plate thickness is uneven, manufacturing tolerance accumulation is excessive in process for machining process.And there is also that the process-cycle is too long, and processing technology process is unreasonable, working hour arranges uneven, the excessive problem of manpower is involved, and the invention is exactly a kind of machining (machining) technique manufacturing method solved these problems.
Description
Technical field
The present invention relates to platform cylinder types in ship machinery processing technology field more particularly to a kind of ship and offshore equipment
The manufacturing method of elevating mechanism.
Background technique
The machining of gear-box is step crucial in ship and offshore equipment, platform cylinder type elevating mechanism processing technology
Suddenly.It is all mostly primary structure member before gear-box machining, is welded by the biggish structural member of volume mostly.Between structural member
After the completion of welding, then Yao Jinhang ageing treatment completes machining according to the required precision of gear-box machining drawing.Gear-box
Structure it is more complicated, be easy to change the shape of gear box structure in welding process, so need using large floor boring machine,
Such as, T6920D is machined out it, to guarantee installation accuracy.
For traditional gear-box process for machining usually using one end of gear-box as the technological datum of processing, this results in tooth
The accumulation of error is larger in process for roller box, and quality is not readily available control.Also, due to current gear-box machining processes
It arranges not scientific, the machining period of gear-box is longer, and traditional gear-box machining period will reach 40 days or more.
Summary of the invention
The present invention provides the manufacturing method of a kind of ship and offshore equipment, platform cylinder type elevating mechanism (i.e. gear-box),
To solve, the milling face of this gear-box large-sized structural parts, bore hole accumulated error in machining process is excessive and the process-cycle is longer
The problem of, the machining ability of existing T6920D floor-type milling & boring machine has been expanded well.
The manufacturing method of ship provided by the present invention and offshore equipment middle gear case, step includes: step 1: workpiece
Before not upper lathe, each practical woollen size for needing mach position is detected, wherein 24 points, inspection are surveyed in each face of woollen
Surveying each mach position of needs, whether there are machining allowances, mark the detection data of each size in the woollen,
Whether detection vertical line, stringcourse, pitch-row center line have distinguishing mark, and detecting upper and lower hole home record is 423 millimeters, and detection overside is flat
The difference of face degree size is no more than 4 millimeters, records above-mentioned data；
Step 2: by upper moulding bed laid parallel among machine tool track, setting workpiece is so that from machine pillar, there are 1 after its storage
Rice 35 is between left and right away from by being fixed on platform of machine tool for the work piece；
Step 3: upper workpiece is ajusted as far as possible and is balanced, 50T jack is arranged in and needs the position that tunes up, using machine tool track and
The feeding of column is tuned up according to riveter center line, guarantees that both ends are 2160 ± 1.5 with drum core wire race lathe,
Setting is drawn a design to rush to mark and be set, and level meter is placed in the position that can observe workpiece triangulation point, another angle of workpiece is by race lathe
It determines, in the quadrangle of workpiece, setting jack tunes up the depth of parallelism of workpiece, punching of drawing a design, and record data report after tune-up
Inspection, with angle bar by work piece, after check again, it is each tune up size qualification after, first face of workpiece is tuned up to 2160
± 1.5 rack central lines are returned with instrument on green surface and position is indicated, and are stamped sample punching mark and are set；
Step 4: installation angular milling head and dial gauge run lathe and draw center line again, stamp sample punching, and the sample of riveter center line is rushed mark
It sets and grinds off, according to upper hole two sides center, and refer to lower opening center, meet each three groups of reductions product in middle left and right in 3 ~ 5 millimeters with six holes
Tired error, draws the cross hairs of 1150,1500 pitch-rows and 2160, punching of drawing a design, wherein sample charges and attacks on the surface not processed；Then
Table is played again according to the detection data on workpiece, and detection overside needs the highest point of the plate face of mach workpiece and minimum up and down
Point, label need mach plate face in workpiece, detect the equal part size adjusting of the upper and lower hole two sides each 345 and lock coordinate,
The coordinate is recorded, it, can be true further according to that can ensure overside 495.3 ± 3 after the practical overside dimension data calculating processing of workpiece
It protects plate thickness and is not less than 36 sizes；Repair welding or baking are carried out to overside when cannot ensure above-mentioned size；After the confirmation of above-mentioned size,
Mutually examine each data, reservation record；
Step 5: installation 200 facing cutter of Φ welds milling head correction and coordinate measurement block on moulding bed, then in the upper and lower of workpiece
The highest point of plate face is processed with 2 millimeters of light-knife, calculate and use calibrator detection plate thickness actual size, it is ensured that can process acquisition outside
Shelves 495.3 ± 3, plate thickness 36, the upper and lower plate face thinnest point of workpiece is labeled in corresponding plate face, retains the record, is carried out thick
Milling, then detect whether plate thickness reaches least limit 35.25, whether detection overside size reaches greatest limit 498.3, and detection meets
After above-mentioned size, then finish-milling overside plane reaches 495.3 ± 3 while ensuring plate thickness in 36 and hole shape box 930+
0.6x972+0.8, when finish-milling feed mouth need to measure with ensure the flatness meet ± 0.5 millimeter, it is the depth of parallelism ± 1 millimeter, coarse
Degree 12.5；
Step 6: according to the complete face of the every finish-milling of above-mentioned steps 5, the upper and lower plate face box for replacing 40 milling cutter of Ф finish-milling workpiece again is leaned on
The outer angle R20, according still further to center line obtained in above-mentioned steps 4 and cross hairs, processing upper and lower hole respectively makes the unilateral ruler in its two sides
It is very little to reach 345 ± 0.44 formings；
Step 7: installation drill chuck, the upper and lower plate face for controlling the workpiece uniformly run digital display, and unified coordinate of pressing is according to the cross
The center in line and upper and lower hole, it is unified to get each hole center away from groove to one end offset 18.5, will treated workpiece according to mould
Plate is detected, and digital display data are recorded, and mutually after inspection, more bit change carries out punching and finish-milling；After finish-milling, thrown
Light, polishing, deburring, it is ensured that roughness 12.5 is mutually examined, inspection declaration, by lower moulding bed tune face；
Step 8: behind the lower moulding bed tune face, on the basis of center line and pitch-row dotted line in the plate face of machined workpiece, peace
It fills and tunes up manufacturing procedure, detected, measured according to the method for step 1 to step 7, mutually inspection, inspection declaration, required by final acquisition
Gear-box.
Optionally, it in above-mentioned manufacturing method, in the step 4, with reference to lower opening center, is met in 3 ~ 5 millimeters with six holes
The middle each three groups of reduction accumulated errors in left and right, draw 1150,1500 pitch-rows and 2160 cross hairs when, according to 307 radius of Ф calculate under
Hole deviation.
Optionally, in above-mentioned manufacturing method, in the step 4, the equal part size of the upper and lower hole two sides each 345 is not
2 millimeters are more than, when the equal part size in the upper and lower hole two sides each 345 is more than 2 millimeters, is moved in the range of ± 3 millimeters
1150,1500 center line.
Optionally, in above-mentioned manufacturing method, in the step 6, unilateral processing dimension is less than normal to take negative value, bigger than normal to take just
Value.
Optionally, in above-mentioned manufacturing method, the size for guaranteeing both sides processing length is needed to reach 278/ in the step 6
145.3。
Optionally, in above-mentioned manufacturing method, in the step 6, on both sides, the size of processing length reaches 278/145.3
When, it is also necessary to carry out following steps: the long milling head and 40 milling cutter of Ф that replacement has customized mill clearly the inner angle R20 of upper and lower plate face box
Forming, finishes polishing burr, mutually examines.
Optionally, in above-mentioned manufacturing method, in the step 7, mutually after inspection, more bit change carries out punching and finish-milling
Specific steps include: replacement waist hole drill bit, 49 hole Φ, 43 drill bit of Φ, 46 hole Φ, 40 drill bit of Φ, 19 hole Φ with Φ 15 bore
Head is beaten unilateral bottom outlet, and is detected with template, positioning pin；Mutually after inspection, more bit change again, wherein 49 hole Φ is milled with Φ 46
Knife, 46 hole Φ, 44 milling cutter of Φ, 19 hole Φ, 16 sprocket cutter of Φ rough mill each waist hole length direction single side and stay 0.5 millimeter；It finishes
Afterwards, it is successively changed to Φ 48.8, Φ 45.8,18.8 milling cutter of Φ, milling cutter cutting edge lengthens 45 finish-milling waist holes to 49 ± 0.3X86 of size
±0.3、46±0.3X83±0.3、19±0.2X56±0.3。
Optionally, in above-mentioned manufacturing method, in the step 7, when hole edge is to knife, several millimeters are first stepped back, then feed
In place, it avoids making mistakes to knife.
Optionally, in above-mentioned manufacturing method, when chief engineer processed to the gear-box is 336 hours.
Beneficial effect
For opening of occurring in process for machining process of gear-box, shelves are excessive, plate thickness is uneven, and especially plate thickness is too small, Yi Jijia
The accumulation of error problems of too of work, the present invention optimize gear-box process.The present invention behind workpieces processing tune face, with
On the basis of center line and pitch-row dotted line in the plate face of machined workpiece, installation tunes up manufacturing procedure, and in process
According to the replacement bit size of processing dimension gradually.The present invention is able to solve out shelves greatly with this small conflict of plate thickness as a result, makes
Workpiece Machining Accuracy is obtained to meet the requirements.
Detailed description of the invention
Fig. 1 is a kind of schematic diagram of the installation site between lathe when lifting device is processed；
Fig. 2 is a kind of front view of the installation site between lathe when lifting device is processed；
Fig. 3 is a kind of top view of the installation site between lathe when lifting device is processed.
Specific embodiment:
It is right below in conjunction with the attached drawing of the embodiment of the present invention to keep purpose and the technical solution of the embodiment of the present invention clearer
The technical solution of the embodiment of the present invention is clearly and completely described.Obviously, described embodiment is a part of the invention
Embodiment, instead of all the embodiments.Based on described the embodiment of the present invention, those of ordinary skill in the art are being not necessarily to
Every other embodiment obtained, shall fall within the protection scope of the present invention under the premise of creative work.
Those skilled in the art of the present technique are appreciated that unless otherwise defined, all terms used herein (including technology art
Language and scientific term) there is meaning identical with the general understanding of those of ordinary skill in fields of the present invention.Should also
Understand, those terms such as defined in the general dictionary, which should be understood that, to be had and the meaning in the context of the prior art
The consistent meaning of justice, and unless defined as here, it will not be explained in an idealized or overly formal meaning.
The present invention provides the manufacturing method of a kind of ship and offshore equipment middle gear case, and step includes:
Step 1: before the not upper lathe of workpiece, detecting each practical woollen size for needing machine to add position, 24 points are surveyed in every face, if there are
Machining allowance, each size detection data write on workpiece, and detect whether vertical line, stringcourse, pitch-row center line have obvious mark
Will, especially 423 millimeters of upper and lower hole home record and overside flatness size can not be 4 millimeters overproof, and make a record；(this step needs
Want 1 shift) 2 people
Step 2: positional relationship shown in referring to figs. 1 to Fig. 3, by upper moulding bed laid parallel T6920D floor-type milling & boring machine lathe
Among track, consider after Workpiece storage from machine pillar there are 1 meter 35 between left and right away from, angular milling head easy to disassemble, and fix tightly exists
On platform；(this step needs 1 shift) 4 people
Step 3: upper workpiece is ajusted as far as possible balances, and puts 50T jack and tune up use, utilizes the feeding of machine tool track and column
It is tuned up by riveter center line, runs lathe with drum core wire to guarantee that both ends 2160 ± 1.5 are same and punching mark of drawing a design is set, by water
Level pendulum can seen at triangulation point, and lathe is run to determine in another angle, and quadrangle tunes up the depth of parallelism of workpiece with jack, and accomplishes fluently
Ocean punching, makes a record, looks for the depth of parallelism to use convenient for workpiece tune face secondary clamping, and tune-up finishes inspection declaration, then with angle bar that workpiece is tight
It is checked again after Gu, after each tune-up size qualification, 2160 ± 1.5 rack central lines that first face tunes up is asked into quality
Portion is returned with instrument on green surface and indicating position and stamping sample punching mark and set, and facilitates secondary clamping；(this step needs 1 half class
It is secondary) 6 people
Step 4: dress angular milling head and dial gauge run lathe and draw center line (machine ledger line) again and stamp foreign punching, the ocean riveter is rushed and is ground
Fall, used convenient for assembly spud leg, further according to upper surface hole two sides center, with reference to lower opening center, guarantees (lower opening in 3 ~ 5 millimeters as far as possible
Deviation is with the calculating of 307 radius of Ф), meet each three groups of reduction accumulated errors in middle left and right to draw 1150,1500 pitch-rows and 2160 with six holes
Cross hairs (convenient for the every process in lower road by this cross hairs on the basis of) and stamp foreign punching, (charging and attacking on not finished surface in ocean).Again
The plate face highest minimum point (at every face at least 24) that table detection overside needs machine to add up and down is beaten again according to detection data on workpiece, is used
Pen, which writes on workpiece, needs machine to add place, the equal part sizes of detection hole two sides each 345 (2 millimeters can not be more than, if it is overproof move 1150,
1500 center lines (technology allow ± 3 millimeters in) adjust, and lock coordinate and make a record, further according to the practical overside ruler of workpiece
Can very little data ensure that overside 495.3 ± 3, plate thickness (otherwise ask welder's repair welding overside or baking not less than 36 sizes after calculating processing
It is roasting), after, each data are mutually examined, record is retained；(this step needs 1 half shift) 2 people
Step 5: installation 200 facing cutter of Φ, looked on moulding bed one place, welding one milling head correction and coordinate measurement block, then by it is upper,
Lower face with highest point process 2 millimeters of light-knife, calculate and with calibrator detection plate thickness actual size to ensure overside 495.3 ± 3,
36 size of plate thickness is capable of processing out, and above and below thinnest point is labeled in each plate face, and there are records, can carry out lower road
Work step has been rough milled, then thoroughly the thicker detection plate thickness, least limit 35.25(plate thickness the better), overside size, greatest limit
498.3, it is ensured that after, then finish-milling plane overside 495.3 ± 3 takes difference as far as possible to guarantee plate thickness 36 and hole shape box 930+
0.6x972+0.8, feed mouth need to measure when finish-milling, guarantee flatness ± 0.5 millimeter, the depth of parallelism ± 1 millimeter and roughness
12.5, it finishes, mutually inspection, inspection declaration.(this step needs 5 shifts) 2 people
Step 6: every complete face of finish-milling, replacement 40 milling cutter of Ф mill clearly the outer angle R20 of plate face box up and down, recycle central cross
Dotted line processes unilateral 345 ± 0.44 forming in hole two sides respectively, notices that unilateral processing dimension is less than normal and take negative value, bigger than normal to take positive value, to the greatest extent
Amount guarantees 278/145.3 size of both sides processing length, then replaces the long milling head customized and 40 milling cutter of Ф mills clearly upper and lower plate face side
The inner angle the R20 forming of frame, finishes polishing burr, mutually examines；(this step needs 3 half shifts) 2 people
Step 7: installation drill chuck is unified to run center of the digital display by coordinate according to cross string holes up and down, unified to deviate to one end
18.5 get each hole center away from groove, (and marking machine direction with pen), then borrow quality department template detection, keep digital display data firmly in mind
And make a record, mutually after inspection, replace various waist hole drill bits, 49 hole Φ, 43 drill bit of Φ, 46 hole Φ, 40 drill bit of Φ, Φ 19
Hole 15 drill bit of Φ is beaten unilateral bottom outlet, and is detected with template, positioning pin, mutually after inspection, replaces 49 hole Φ, 46 milling cutter of Φ,
46 hole Φ, 44 milling cutter of Φ, 19 hole Φ, 16 sprocket cutter of Φ rough mill each waist hole length direction single side and stay 0.5 millimeter, after,
It replaces Φ 48.8, Φ 45.8, Φ 18.8(cutting edge and lengthens 45) milling cutter, finish-milling waist hole to size 49 ± 0.3X86 ± 0.3,46 ±
0.3X83 ± 0.3, the forming of 19 ± 0.2X56 ± 0.3 (notice that hole length actual size is rough milled in the every Kong Shixian measurement of finish-milling, accomplish the heart
In have bottom), to knife when can not general idea, do not allow to fully rely on digital display, need people help to knife, it is proposed that knife in hole edge, most
Several millimeters are stepped back well, then is fed in place, avoid making mistakes to knife, finish-milling finishes, polishes, polishes, deburring, it is ensured that roughness
12.5, it mutually examines, inspection declaration, lower moulding bed tune face；(this step needs 9.5 shifts) 2 people
Step 8: behind tune face, on the basis of machined surface center line and pitch-row dotted line, installation tune up manufacturing procedure, detection, measurement,
For example preceding operation of one cutting process such as mutual inspection, inspection declaration, working hour carries out；(this step needs 21 shifts) 168 hours.The above process
Dimensional units be millimeter.
Above-mentioned processing method carries out processing required record of work as follows to gear-box:
One, tune up and modify center line.(12 hours)
Two, plate thickness 36, outer gear 495.3 ± 3 and height are detected on lathe.(6 hours) are then installed angular milling head and are first surveyed below again
It surveys and mutually examines within 1 hour, tracking, records above.
Three, 12 plate face cross hairs are drawn.(4.5 hours).Wherein, drawn above conversion milling head draw following half an hour mutually examine,
Tracking, record.(tuning up total need 24 hours of crossing)
Four, 6 hole faces below light, (5 hours, 50 minutes/face), wherein below above the complete conversion milling head light of light (half an hour)
Five, 6 hole faces above light, (3 hours, 30 minutes/face)
Six, 6 groups of hole faces up and down, outer gear machining allowance, (3.5 hours, 35 minutes/group) mutual inspection, tracking, record are detected.
Seven, 6 hole faces in coarse-fine milling, (6 hours, 60 minutes/face) containing detection are then mutually examined, tracking, record.
Eight, upper plane connects knife and mills outer R20-12 angle, and (2.5 hours, 12.5 minutes/angle) can also be in passing by above 120
A waist hole groove point is complete.Wherein, the complete conversion milling head of upper facing cut mills following (half an hour).
Nine, (face of unilateral 345 ± 0.44) 12, (8 hours, 40 minutes/face) are mutually examined, tracking, are recorded for hole two sides in milling.
Ten, 6 hole faces under coarse-fine milling, (9 hours, 90 minutes/face) containing detection are then mutually examined, are tracked, top and bottom inspection declaration
Record.
11, lower plane connects knife and mills outer R20-12 angle, and (3 hours, 15 minutes/angle) connect the complete replacement milling head of knife (1 hour)
12, lower plane connects knife and mills interior R20-12 angle, and (4 hours, 20 minutes/angle) utilize in milling head milling after completing conversion below
Face (half an hour)
13, upper plane connects knife and mills interior R20-12 angle, and (3.5 hours, 17.5 minutes/angle) then connect the complete replacement milling head (1 of knife
Hour)
Upper and lower 6 groups of hole faces include milling, clear angle, need altogether 51 hours)
14, waist hole pitch-row groove 240 is put, (11 hours, 2.75 minutes /) wherein, lower recess could be run with point straight line
Coordinate bottoming hole), conversion milling head has been beaten above lays face (half an hour) mutually inspection, tracking.
15,240, bottoming hole, (25 hours, 6.25 minutes /) wherein, the artificial bottoming hole of upper face can save lathe
It operates (12 hours), has beaten conversion milling head below and stamped face (half an hour) mutually inspection, tracking, inspection declaration.
16,19 waist hole of Ф 48 is rough milled with 16 milling cutter of Ф, (10 hours, 12.5 minutes/well do the processing of 3 knives).Wherein,
Ф 19, Ф 46,49 waist hole of Ф, thick, half finish-milling, finish-milling, first single side whole process finish reconvert milling head processing another side) conversion
Milling head (half an hour)
17,46 waist hole of Ф 96 is rough milled with 44 milling cutter of Ф, (8.30 hours, 5.3 minutes/well)
18,49 waist hole of Ф 96 is rough milled with 46 milling cutter of Ф, (9.30 hours, 6 minutes/well)
19,19 waist hole of finish-milling top and bottom Ф 48, (6 hours, 7.5 minutes/well)
20,49 waist hole of Ф 96 above finish-milling, (11.30 hours, 7.18 minutes/well)；46 waist hole of Ф 96 below finish-milling
(9.30 hours, 6 minutes/well)；The lower complete conversion milling head milling of facing cut is above (half an hour)；Point groove, which rises to waist hole finish-milling, finishes total need
93 hours, self-test is then carried out, mutual inspection, tracking, sanding and polishing, inspection declaration, records, declare outer inspection.
In processing method of the invention, the face the B processing technology of gear box structure is identical as the face A, the two processing chief engineer when
It is 336 hours.The mode fallen according to 3 classes, a shift arrange 8 hours, and First lifting device integrally needs 42 shifts altogether,
Upper lathe practical operation, which is worked in three shifts, only needs processing can be completed within 14 days, compared to the processing that existing processing method saves 65%
Period.
Claims (9)
1. the manufacturing method of a kind of ship and offshore equipment middle gear case, which is characterized in that step includes:
Step 1: before the not upper lathe of workpiece, detecting each practical woollen size for needing mach position, wherein woollen is every
24 points are surveyed in a face, and detecting each mach position of needs, whether there are machining allowances, mark each in the woollen
Whether the detection data of size, detection vertical line, stringcourse, pitch-row center line have distinguishing mark, and detecting upper and lower hole home record is 423
The difference of millimeter, detection overside flatness size is no more than 4 millimeters, records above-mentioned data；
Step 2: by upper moulding bed laid parallel among machine tool track, setting workpiece is so that from machine pillar, there are 1 after its storage
Rice 35 is between left and right away from by being fixed on platform of machine tool for the work piece；
Step 3: upper workpiece is ajusted as far as possible and is balanced, 50T jack is arranged in and needs the position that tunes up, using machine tool track and
The feeding of column is tuned up according to riveter center line, guarantees that both ends are 2160 ± 1.5 with drum core wire race lathe,
Setting is drawn a design to rush to mark and be set, and level meter is placed in the position that can observe workpiece triangulation point, another angle of workpiece is by race lathe
It determines, in the quadrangle of workpiece, setting jack tunes up the depth of parallelism of workpiece, punching of drawing a design, and record data report after tune-up
Inspection, with angle bar by work piece, after check again, it is each tune up size qualification after, first face of workpiece is tuned up to 2160
± 1.5 rack central lines are returned with instrument on green surface and position is indicated, and are stamped sample punching mark and are set；
Step 4: installation angular milling head and dial gauge run lathe and draw center line again, stamp sample punching, and the sample of riveter center line is rushed mark
It sets and grinds off, according to upper hole two sides center, and refer to lower opening center, meet each three groups of reductions product in middle left and right in 3 ~ 5 millimeters with six holes
Tired error, draws the cross hairs of 1150,1500 pitch-rows and 2160, punching of drawing a design, wherein sample charges and attacks on the surface not processed；Then
Table is played again according to the detection data on workpiece, and detection overside needs the highest point of the plate face of mach workpiece and minimum up and down
Point, label need mach plate face in workpiece, detect the equal part size adjusting of the upper and lower hole two sides each 345 and lock coordinate,
The coordinate is recorded, it, can be true further according to that can ensure overside 495.3 ± 3 after the practical overside dimension data calculating processing of workpiece
It protects plate thickness and is not less than 36 sizes；Repair welding or baking are carried out to overside when cannot ensure above-mentioned size；After the confirmation of above-mentioned size,
Mutually examine each data, reservation record；
Step 5: installation 200 facing cutter of Φ welds milling head correction and coordinate measurement block on moulding bed, then in the upper and lower of workpiece
The highest point of plate face is processed with 2 millimeters of light-knife, calculate and use calibrator detection plate thickness actual size, it is ensured that can process acquisition outside
Shelves 495.3 ± 3, plate thickness 36, the upper and lower plate face thinnest point of workpiece is labeled in corresponding plate face, retains the record, is carried out thick
Milling, then detect whether plate thickness reaches least limit 35.25, whether detection overside size reaches greatest limit 498.3, and detection meets
After above-mentioned size, then finish-milling overside plane reaches 495.3 ± 3 while ensuring plate thickness 36 and hole shape box 930+ 0.6x972+0.8, feed mouth need to be measured to ensure that the flatness meets ± 0.5 millimeter, the depth of parallelism ± 1 millimeter, roughness when finish-milling
12.5；
Step 6: according to the complete face of the every finish-milling of above-mentioned steps 5, the upper and lower plate face box for replacing 40 milling cutter of Ф finish-milling workpiece again is leaned on
The outer angle R20, according still further to center line obtained in above-mentioned steps 4 and cross hairs, processing upper and lower hole respectively makes the unilateral ruler in its two sides
It is very little to reach 345 ± 0.44 formings；
Step 7: installation drill chuck, the upper and lower plate face for controlling the workpiece uniformly run digital display, and unified coordinate of pressing is according to the cross
The center in line and upper and lower hole, it is unified to get each hole center away from groove to one end offset 18.5, will treated workpiece according to mould
Plate is detected, and digital display data are recorded, and mutually after inspection, more bit change carries out punching and finish-milling；After finish-milling, thrown
Light, polishing, deburring, it is ensured that roughness 12.5 is mutually examined, inspection declaration, by lower moulding bed tune face；
Step 8: behind the lower moulding bed tune face, on the basis of center line and pitch-row dotted line in the plate face of machined workpiece, peace
It fills and tunes up manufacturing procedure, detected, measured according to the method for step 1 to step 7, mutually inspection, inspection declaration, required by final acquisition
Gear-box.
2. the manufacturing method of ship as described in claim 1 and offshore equipment middle gear case, which is characterized in that the step 4
In, with reference to lower opening center, meet each three groups of reduction accumulated errors in middle left and right in 3 ~ 5 millimeters with six holes, draw 1150,1500 pitch-rows and
When 2160 cross hairs, lower opening deviation is calculated according to 307 radius of Ф.
3. the manufacturing method of ship as described in claim 1 and offshore equipment middle gear case, which is characterized in that the step 4
In, the equal part size of the upper and lower hole two sides each 345 is not more than 2 millimeters, the equal part size in the upper and lower hole two sides each 345
When more than 2 millimeters, mobile 1150,1500 center lines in the range of ± 3 millimeters.
4. the manufacturing method of ship and offshore equipment middle gear case as described in claim 1-3, which is characterized in that the step
In 6, unilateral processing dimension is less than normal to take negative value, bigger than normal to take positive value.
5. the manufacturing method of ship as claimed in claim 4 and offshore equipment middle gear case, which is characterized in that the step 6
The middle size that need to guarantee both sides processing length reaches 278/145.3.
6. the manufacturing method of ship and offshore equipment middle gear case as described in claim 4-5, which is characterized in that the step
In 6, when on both sides, the size of processing length reaches 278/145.3, it is also necessary to carry out following steps: the long milling head that replacement has customized
The inner angle the R20 forming of upper and lower plate face box is milled clearly with 40 milling cutter of Ф, is finished polishing burr, is mutually examined.
7. the manufacturing method of ship and offshore equipment middle gear case as described in claim 4-6, which is characterized in that the step
In 7, mutually after inspection, it includes: replacement waist hole drill bit, 49 hole Φ Φ 43 that more bit change, which carries out punching and the specific steps of finish-milling,
Drill bit, 46 hole Φ, 40 drill bit of Φ, 19 hole Φ, 15 drill bit of Φ are beaten unilateral bottom outlet, and are detected with template, positioning pin；Mutually examine
Bi Hou, again more bit change, wherein 49 hole Φ, 46 milling cutter of Φ, 46 hole Φ, 44 milling cutter of Φ, 19 hole Φ are milled with 16 sprocket wheel of Φ
Knife rough mills each waist hole length direction single side and stays 0.5 millimeter；After, it is successively changed to Φ 48.8, Φ 45.8,18.8 milling cutter of Φ,
Milling cutter cutting edge lengthens 45 finish-milling waist holes to size 49 ± 0.3X86 ± 0.3,46 ± 0.3X83 ± 0.3,19 ± 0.2X56 ± 0.3.
8. the manufacturing method of ship as claimed in claim 7 and offshore equipment middle gear case, which is characterized in that the step 7
In, when hole edge is to knife, several millimeters are first stepped back, then feed in place, avoids making mistakes to knife.
9. the manufacturing method of ship according to claims 1-8 and offshore equipment middle gear case, which is characterized in that it is to described
It is 336 hours when the chief engineer that gear-box is processed.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111112963A (en) * | 2020-03-05 | 2020-05-08 | 招商局邮轮制造有限公司 | Machining method for self-elevating multifunctional service platform floating type gear box |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111112963A (en) * | 2020-03-05 | 2020-05-08 | 招商局邮轮制造有限公司 | Machining method for self-elevating multifunctional service platform floating type gear box |
| CN111112963B (en) * | 2020-03-05 | 2021-12-24 | 招商局邮轮制造有限公司 | Machining method for self-elevating multifunctional service platform floating type gear box |
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