CN105880936A - Bolt machining method - Google Patents
Bolt machining method Download PDFInfo
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- CN105880936A CN105880936A CN201510571304.8A CN201510571304A CN105880936A CN 105880936 A CN105880936 A CN 105880936A CN 201510571304 A CN201510571304 A CN 201510571304A CN 105880936 A CN105880936 A CN 105880936A
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- Prior art keywords
- bolt
- light beam
- centre bore
- processing method
- upside
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- 238000000034 method Methods 0.000 title abstract description 20
- 238000003754 machining Methods 0.000 title abstract description 7
- 238000003672 processing method Methods 0.000 claims description 29
- 238000007514 turning Methods 0.000 claims description 10
- 238000000227 grinding Methods 0.000 claims description 9
- 230000001360 synchronised effect Effects 0.000 claims description 4
- 230000008569 process Effects 0.000 abstract description 13
- 230000005540 biological transmission Effects 0.000 abstract description 4
- 238000012545 processing Methods 0.000 description 31
- 238000010586 diagram Methods 0.000 description 20
- 230000000694 effects Effects 0.000 description 9
- 238000007689 inspection Methods 0.000 description 8
- 238000003801 milling Methods 0.000 description 8
- 238000005498 polishing Methods 0.000 description 8
- 238000004519 manufacturing process Methods 0.000 description 7
- 238000005516 engineering process Methods 0.000 description 6
- 238000002360 preparation method Methods 0.000 description 4
- 238000012797 qualification Methods 0.000 description 4
- PPTYJKAXVCCBDU-UHFFFAOYSA-N Rohypnol Chemical compound N=1CC(=O)N(C)C2=CC=C([N+]([O-])=O)C=C2C=1C1=CC=CC=C1F PPTYJKAXVCCBDU-UHFFFAOYSA-N 0.000 description 3
- 230000008901 benefit Effects 0.000 description 3
- 230000008859 change Effects 0.000 description 3
- 230000007547 defect Effects 0.000 description 3
- 239000000686 essence Substances 0.000 description 3
- 230000002093 peripheral effect Effects 0.000 description 3
- 238000011160 research Methods 0.000 description 3
- 230000003746 surface roughness Effects 0.000 description 3
- 230000008685 targeting Effects 0.000 description 3
- 208000031481 Pathologic Constriction Diseases 0.000 description 2
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 210000001215 vagina Anatomy 0.000 description 2
- 241000208340 Araliaceae Species 0.000 description 1
- 235000005035 Panax pseudoginseng ssp. pseudoginseng Nutrition 0.000 description 1
- 235000003140 Panax quinquefolius Nutrition 0.000 description 1
- 208000037656 Respiratory Sounds Diseases 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 238000010009 beating Methods 0.000 description 1
- 210000000080 chela (arthropods) Anatomy 0.000 description 1
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- 238000009659 non-destructive testing Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
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
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B35/00—Screw-bolts; Stay-bolts; Screw-threaded studs; Screws; Set screws
Abstract
The invention provides a bolt machining method. The bolt machining method at least comprises the following steps that firstly, a bolt polished column is machined; secondly, center holes in the end faces of the two ends of the bolt are machined; thirdly, the upper side 4 and the lower side 5 of the bolt polished column are rounded, the center holes are rounded, bevels of the center holes are turned and rounded, and the size of the center holes reaches the final size; and fourthly, the straightness accuracy of the bolt polished column is adjusted, and the bolt polished column is ground. The bolt machining pass percent is increased, the size of the bolt holes is guaranteed, accordingly, a lining of the bolt makes comprehensive contact with the bolt holes, transmission of torque on a whole shaft system is not affected, and safety performance in the using process is guaranteed.
Description
Technical field
The present invention relates to boats and ships manufacture field, particularly relate to a kind of bolt processing method.
Background technology
In the fitting-up bolt course of processing peculiar to vessel, a cylinder is in lathe and grinding machine machining, when its axiality, circle
When post degree required precision is high, as produced sizes values deviation on Z axis, it will react on the linearity of workpiece, linearity meeting
Produce sizes values deviation, also can be affected fitting-up bolt peculiar to vessel by reason bolts such as machinery self vibration with beating in X-axis and Y-axis
Axiality and cylindricity etc., control the Study on Problems of jerk value during bolt polish and be to ensure that fitting-up bolt peculiar to vessel processing is entered smoothly
One important process of row,
The fitting-up bolt needs peculiar to vessel being connected between main frame flywheel end with jackshaft level reference axis system are according to the reality after the bore hole of pincers worker scene
Size in machine shop to carry out between external half finish turning configure polish.Need between lining and the bolt hole of theory calls bolt
Absolutely to contact.The fitting-up bolt peculiar to vessel of main frame jackshaft and relevant coupling of shaft system has following defects that in the prior art
Bolt hole is non-round or straight, is only point cantact rather than comprehensive engagement and qualification rate are relatively low between lining and the bolt hole of bolt.With
The transmission that upper defect fastens moment for whole axle produces impact, and the safe handling to shafting of main engine and reference axis system simultaneously produces not
The impact of profit.
Summary of the invention
The shortcoming of prior art in view of the above, it is an object of the invention to provide a kind of bolt processing method, is used for solving now
There is bolt hole in technology non-round or not straight, between lining and the bolt hole of bolt, be only point cantact rather than comprehensive engagement and qualification rate
Relatively low problem.
For achieving the above object and other relevant purposes, the present invention provides a kind of bolt processing method, and described bolt processing method is extremely
Comprise the following steps less:
S1, bolt light beam is processed；
S2, centre bore to the two ends end face of described bolt are processed；
S3, the upper side and lower side to described bolt light beam carry out school circle, centre bore described in cavetto, and turning circle described center hole deviation
Face so that the size of described centre bore reaches final size；
S4, adjust the linearity of described bolt light beam, and described bolt light beam is polished.
Preferably, described step S1 comprises the following steps:
S11, clamp the lower end of described bolt, and withstand the upper end of described bolt；
External diameter in the middle part of bolt light beam described in S12, light car, and pre-made allowance；
External diameter in the middle part of bolt light beam described in S13, half finish turning；
The described upside of bolt light beam described in S14, light car and described downside.
Preferably, described step S2 comprises the following steps:
S21, clamp the described lower end of described bolt, and hold the described upside of described bolt；
S22, check and correct described upside and the circularity of described downside；
S23, the first centre bore to the described lower end of described bolt are processed.
Preferably, described step S3 comprises the following steps:
S31, clamp upper end described in described bolt, and hold at the described downside of described bolt；
S32, check and correct described upside and described downside circularity；
S33, the second centre bore in described lower end is processed.
Preferably, described step S4 comprises the following steps:
S41, fix described bolt by described first centre bore and described second centre bore, and ensure that described bolt is Tong Bu with grinding machine
Rotate；
S42, adjust the linearity of described bolt light beam, described bolt light beam is polished.
Preferably, described step S1 comprises the following steps:
S11 ', clamping lower end, and withstand upper end；
External diameter in the middle part of bolt light beam described in S12 ', light car, and pre-made allowance；
Described in S13 ', light car, the gradient of upside to described upside reaches final size；
Lower end described in S14 ', light car reaches final size with the size of joint portion to the described joint portion of described bolt light beam.
Preferably, described step S2 comprises the following steps:
S21 ', clamp described lower end, and hold described upper end；
S22 ', check and correct the circularity of described upside and two ends, described downside；
S23 ', the first centre bore to described upper end are processed.
Preferably, described step S3 comprises the following steps:
S31 ', clamping described upper end, and hold described lower end, described lower end is provided with vexed plug away from the side of described upper end；
S32 ', check and correct the circularity at two ends, described bolt light beam the upper side and lower side；
S33 ', described vexed the second centre bore beyond the Great Wall is processed.
Preferably, described step S4 comprises the following steps:
S41 ', fixed described bolt by described first centre bore and described second centre bore, and ensure described bolt and grinding machine with
Step rotates；
S42 ', adjust the linearity of described bolt light beam, described bolt light beam is polished；
S43 ', it is ground to require size and plane by described joint portion.
Preferably, further comprising the steps of in described step S3:
Judge that described centre bore and final size deviation are the biggest, if otherwise revising gradient and the width of described centre bore, if
Then enter step S4 behind the aperture of centre bore described in cavetto.
As it has been described above, the bolt processing method of the present invention, have the advantages that the qualification rate that improve bolt processing, protect
The size in card bolt-center hole, and then make comprehensive engagement between the lining of bolt and bolt-center hole, do not affect whole axle and fasten
The transmission of moment, it is ensured that the security performance during use.
Accompanying drawing explanation
Fig. 1 is shown as the flow diagram of bolt processing method of the present invention；
Fig. 2 is shown as the flow diagram of an embodiment of step S1 in Fig. 1；
Fig. 3 is shown as the flow diagram of an embodiment of step S2 in Fig. 1；
Fig. 4 is shown as the flow diagram of an embodiment of step S3 in Fig. 1；
Fig. 5 is shown as the flow diagram of an embodiment of step S4 in Fig. 1；
Fig. 6 is shown as the structure chart of an embodiment of the bolt of bolt processing method of the present invention.
Fig. 7 is shown as the flow diagram of another embodiment of step S1 in Fig. 1；
Fig. 8 is shown as the flow diagram of another embodiment of step S2 in Fig. 1；
Fig. 9 is shown as the flow diagram of another embodiment of step S3 in Fig. 1；
Figure 10 is shown as the flow diagram of another embodiment of step S4 in Fig. 1；
Figure 11 is shown as the structure chart of another embodiment of the bolt of bolt processing method of the present invention.
Detailed description of the invention
Below by way of specific instantiation, embodiments of the present invention being described, those skilled in the art can be by disclosed by this specification
Content understand other advantages and effect of the present invention easily.The present invention can also be added by the most different detailed description of the invention
To implement or application, the every details in this specification can also be based on different viewpoints and application, in the essence without departing from the present invention
Various modification or change is carried out under god.
Refer to Fig. 1 to Figure 11.It should be noted that the diagram provided in the present embodiment illustrates the present invention the most in a schematic way
Basic conception, the most graphic in component count time only display with relevant assembly in the present invention rather than is implemented according to reality, shape
And size drafting, during its actual enforcement, the kenel of each assembly, quantity and ratio can be a kind of random change, and its assembly layout
Kenel is likely to increasingly complex.
As it is shown in figure 1, Fig. 1 is shown as the flow diagram of bolt processing method of the present invention.One is provided in the present invention
Bolt processing method, bolt processing method at least comprises the following steps:
S1, bolt light beam is processed；In the present embodiment, the peripheral dimension of bolt light beam is processed the final chi of bolt light beam processed
The very little surplus adding 0.25-0.35mm.
S2, centre bore to the two ends end face of bolt are processed, and the dimensioned of centre bore to final size is added suitable surplus；
The centre bore of bolt two ends end face is positioned at the circle centre position of bolt two ends end face.In the present embodiment, final size includes centre bore inclined-plane
Width is 2-2.5mm, in addition in order to coordinate the requirement of centre bore surface width, generally also needs to arrange depth of center hole and is more than
6mm, gradient 60 degree, to ensure processing effect.
S3, on the upside of bolt light beam 4 and downside 5 are carried out school circle, cavetto centre bore, and turning circular centre hole inclined-plane so that in
The size of central hole reaches final size；After processing, it is judged that the size of centre bore is the biggest with the deviation of final size.If
Deviation is less, then be directly modified centre bore with centre drill, makes size meet final size；If deviation is relatively big, use center
Boring and be difficult to revise, to aperture, foramen primum milling cutter can be carried out cavetto, the size of milling cutter selects according to the size of Aperture deviation..
S4, reinspection bolt light beam two ends circularity, adjust the linearity of bolt light beam, and polish bolt light beam.
After terminating above-mentioned steps, submit the bolt after processing to inspection.
As shown in Figures 1 to 6, Fig. 1 is shown as the flow diagram of bolt processing method of the present invention；Fig. 2 is shown as in Fig. 1 step
The flow diagram of one embodiment of rapid S1；Fig. 3 is shown as the flow diagram of an embodiment of step S2 in Fig. 1；Fig. 4
It is shown as the flow diagram of an embodiment of step S3 in Fig. 1；Fig. 5 is shown as the stream of an embodiment of step S4 in Fig. 1
Journey block diagram；Fig. 6 is shown as the structure chart of an embodiment of the bolt of bolt processing method of the present invention.The first reality in the present invention
Executing and provide a kind of bolt processing method in example, bolt processing method at least comprises the following steps:
S1, bolt light beam is processed；In the present embodiment, the peripheral dimension of bolt light beam is processed the final of bolt light beam processed
Size adds the surplus of 0.25-0.35mm.The process being processed bolt light beam is specific as follows: S11, use three-jaw self-centering chuck
The lower end 2 of grip bolt, and the upper end 1 of bolt is withstood with rotation thimble.The external diameter of 3 in the middle part of S12, light car bolt light beam, and
Pre-made allowance, in order to process further in subsequent step.In the middle part of S13, half finish turning bolt light beam, the external diameter of 3 reaches final
The requirement of size, usual bolt light beam processes the final size of bolt light beam processed needs three to four time half finish turning so that machining accuracy
Higher.The gradient of S14, the upside 4 of light car bolt light beam and the upside 4 of downside 5 to bolt light beam and downside 5 reaches bolt light
The requirement of post final size.In the present embodiment, reserved surplus is 0.25-0.35mm, the final size bag of upside 4 and downside 5
The gradient on the slope including upside 4 and downside 5 is 5 degree, slope length 5.5mm and roughness 1.6.
S2, centre bore to the two ends end face of bolt are processed, and the dimensioned of centre bore to final size is added suitable surplus；
The centre bore of bolt two ends end face is positioned at the circle centre position of bolt two ends end face.Bolt is usually provided with screw thread.In the present embodiment, spiral shell
Stricture of vagina is arranged between bolt two ends end face and bolt light beam；Final size includes that centre bore surface width is 2-2.5mm, is in addition
Coordinating the requirement of centre bore surface width, generally also need to arrange depth of center hole more than 6mm, gradient 60 degree, to ensure
Processing effect, and then make comprehensive engagement between the lining of bolt and bolt-center hole.The centre bore of bolt two ends end face is carried out
The process of processing is specific as follows: S21, the lower end 2 of use four-jaw chuck grip bolt；The upper of close bolt is held with centre frame
The side of end 1.In the present embodiment, center rest holds at the upside 4 of bolt light beam.S22, check on the upside of bolt light beam 4
With the circularity at two ends, downside 5, with dial gauge, upside 4 and the downside 5 of bolt light beam are carried out school circle, it is ensured that centre bore in processing
Axle center be located along the same line, if circularity is identical, then illustrate that the axle center of centre bore is located along the same line.In the present embodiment,
Deviation should be not more than 0.01mm.S23, the first centre bore of use milling cutter processing bolt lower end 2, then use centre drill drill centers
Gradient, and the gradient of the first centre bore is machined to final size adds suitable surplus.
S3, on the upside of bolt light beam 4 and downside 5 are carried out school circle, cavetto centre bore, and turning circular centre hole inclined-plane so that in
The size of central hole reaches final size；After processing, it is judged that the size of centre bore is the biggest with the deviation of final size.This
In embodiment, deviation should be not more than 0.01mm.If deviation is less, then directly centre bore is modified with centre drill, makes size
Meet final size；If deviation is relatively big, it is difficult to revise with centre drill, foramen primum milling cutter can be carried out cavetto to aperture, milling cutter
Size selects according to the size of Aperture deviation.The course of processing is specific as follows: S31, use four-jaw chuck grip bolt first
The upper end 1 at centre bore place, and hold the side near bolt lower end 2, in the present embodiment, center rest with lathe center frame
Hold at the downside 5 of bolt light beam.S32, check on the upside of bolt light beam 4 and the circularity at two ends, downside 5, with dial gauge to bolt
The upside 4 of light beam and two ends, downside 5 carry out school circle, it is ensured that in processing, the axle center of centre bore is located along the same line, if circularity
Identical, then illustrate that the axle center of centre bore is located along the same line.S33, the second centre bore in bolt lower end 2 is processed,
Light car the second centre bore, processes the width of the second centre bore, the degree of depth and gradient.
S4, reinspection bolt light beam two ends circularity, adjust the linearity of bolt light beam, and polish bolt light beam.Processed
Journey is specific as follows: S41, fixed bolt by the first centre bore and the second centre bore between grinding machine head stock and tailstock two thimble；Ensure
Bolt and grinding machine synchronous axial system.S42, adjustment the linearity of calibration bolt light beam, be polishing to final size to bolt light beam.
In bruting process, generally first to carry out examination mill, it is ensured that after polishing effect, bolt light beam can be polishing to final size.?
Before polishing, need again to recheck on the upside of bolt light beam 4 and downside 5 circularity, to determine the first centre bore and the second centre bore
Position, it is ensured that the effect of polishing.In the present embodiment, the degree of error that polishing requires is 0.01mm-0, and 02mm, roughness is 1.6.
After terminating above-mentioned steps, submit the bolt after processing to inspection.The present embodiment is generally used for boats and ships front axle close-fitting peculiar to vessel spiral shell
The processing of bolt, concrete can also use the manufacturing process in the present embodiment according to different needs to different bolts.
As Fig. 1 and Fig. 7 is to shown in 11, and Fig. 7 is shown as the flow diagram of another embodiment of step S1 in Fig. 1；Fig. 8
It is shown as the flow diagram of another embodiment of step S2 in Fig. 1；Fig. 9 is shown as another embodiment of step S3 in Fig. 1
Flow diagram；Figure 10 is shown as the flow diagram of another embodiment of step S4 in Fig. 1；Figure 11 is shown as the present invention
The structure chart of another embodiment of the bolt of bolt processing method.A kind of bolt processing is provided in the second embodiment of the present invention
Method, bolt processing method at least comprises the following steps:
S1, bolt light beam is processed；In the present embodiment, the peripheral dimension of bolt light beam is processed the final of bolt light beam processed
Size adds the surplus of 0.25-0.35mm.Bolt light beam is processed to the process of the first pre-set dimension specific as follows: S11, use
The lower end 2 of three-jaw self-centering chuck grip bolt, i.e. hexagonal end in Figure 11；And the upper end 1 of bolt is withstood with rotation thimble.
The external diameter of 3 in the middle part of S12, light car bolt light beam, and pre-made allowance, in order to process further in subsequent step.S13、
On the upside of light car bolt light beam, the gradient of 4 to upside 4 reaches final size requirement.S14, the end face of light car lower end 2 and lower end 2
With the requirement that the joint portion 6 of bolt light beam to both size reaches final size.In the present embodiment, final size includes upside
4 chamfer length 5.5mm, gradient 5 degree；The radius R2.5 of the joint portion 6 of lower end 2 and bolt light beam.
S2, centre bore to the two ends end face of bolt are processed, and the dimensioned of centre bore to final size is added suitable surplus；
The centre bore of bolt two ends end face is positioned at the circle centre position of bolt two ends end face.Bolt is usually provided with screw thread.In the present embodiment, spiral shell
Stricture of vagina is arranged between the end face of bolt upper end 1 and bolt light beam；Final size includes that centre bore surface width is 2-2.5mm, this
Outer in order to coordinate the requirement of centre bore surface width, generally also need to arrange depth of center hole more than 6mm, gradient 60 degree, with
Ensure processing effect, and then make comprehensive engagement between the lining of bolt and bolt-center hole.Centre bore to bolt two ends end face
The process being processed is specific as follows: S21, the lower end 2 of use four-jaw chuck grip bolt, i.e. hexagonal end, uses central bracket supporting
Live the side of the upper end 1 near bolt.In the present embodiment, center rest holds at the upside 4 of bolt light beam.In S22, inspection
Upside 4 and the two ends, downside 5 of bolt light beam are carried out school circle with dial gauge, it is ensured that processing by side 4 and the circularity at two ends, downside 5
The axle center of middle centre bore is located along the same line, if circularity is identical, then illustrates that the axle center of centre bore is located along the same line.This
In embodiment, deviation should be not more than 0.01mm.S23, the first centre bore of use milling cutter processing bolt lower end 2, then use center
Bore drill centers gradient, and the gradient of the first centre bore is machined to final size adds suitable surplus.
S3, the upside 4 of bolt light beam and downside 5 are carried out school circle, cavetto centre bore, and turning circular centre hole inclined-plane so that
The size of centre bore reaches final size；After processing, it is judged that the size of centre bore is the biggest with the deviation of final size.
In the present embodiment, deviation should be not more than 0.01mm.If deviation is less, then directly centre bore is modified with centre drill, makes chi
Very little meet final size；If deviation is relatively big, it is difficult to revise with centre drill, foramen primum milling cutter can be carried out cavetto, milling cutter to aperture
Size select according to the size of Aperture deviation..The course of processing is specific as follows: S31, use four-jaw chuck grip bolt
Upper end 1, and hold the hexagonal end of bolt with centre frame；Hexagonal end is provided with vexed plug 7 away from the side of upper end 1.S32, inspection
Look into upside 4 and the circularity of downside 5 of bolt light beam, with dial gauge, upside 4 and downside 5 are carried out school and justify.S33, to vexed plug 7
On the second centre bore be processed, light car the second centre bore, process the width of the second centre bore, the degree of depth and gradient.
S4, reinspection bolt light beam two ends circularity, adjust the linearity of bolt light beam, and polish bolt light beam.Processed
Journey is specific as follows: S41, the upside 4 rechecking bolt light beam and downside 5 circularity.S42, by the first centre bore and the second center
Bolt is fixed between grinding machine head stock and tailstock two thimble in hole；Ensure bolt and grinding machine synchronous axial system.S43, adjustment calibration bolt light
The linearity of post, is polishing to final size to bolt light beam.In the present embodiment, the degree of error that polishing requires is
0.01mm-0.02mm, roughness is 1.6.S44, the size of joint portion 6 is ground to final size.
After terminating above-mentioned steps, submit the bolt after processing to inspection.The present embodiment is generally used for boats and ships rear axle close-fitting peculiar to vessel spiral shell
The processing of bolt, concrete can also use the manufacturing process in the present embodiment according to different needs to different bolts.
By the actual state to fitting-up bolt polish peculiar to vessel, in conjunction with relevant criterion, meeting relevant criterion and relevant technology ginseng
In the case of number, through research of technique, relative analysis, real ship application, summing up research, fitting-up bolt peculiar to vessel is added by the present invention
Work Technology and inspection parameter are carried out by following content, in order to preferably Instructing manufacture, it is ensured that fitting-up bolt peculiar to vessel preparation finishing
The crudy of work.Specific requirement is as follows: the circularity of (1) bolt targeting part, cylindricity, axiality etc. are by 6 grades of essences of tolerance
Degree requirement；(2) bolt external screw thread precision presses h6 level, and nut inner thread precision presses H6 level, the two ends screw thread essence of stud
Degree is all by h6 level；(3) centrage of bolt openings pin-and-hole should be not more than 0.1mm, nut opening with the distance of bolt centerline
Cotter way centrage should be not more than 0.1mm with the distance of nut centrage；(4) precision of connecting-rod bolts targeting part, high speed bavin
Oil machine presses g6 level, and f7 level pressed by low-speed diesel engine；(5) the Circular Run-out Tolerance amount of nut centrage faced by the supported end of nut should
Being not more than 0.03mm, bolt head supported end should be not more than 0.03mm in the face of the end face run-out amount guiding position centrage；(6)
The supporting end face of nut and the surface roughness Ra value of screw thread should be not more than 2.5 μm.Connecting-rod bolts guide the surface roughness at position,
The Ra value of Medium and high speed engine is not more than 1.6 μm, and the Ra value of low-speed diesel engine is not more than 2.5 μm.Other fitting-up bolt is led
It is not more than 1.6 μm to the surface roughness Ra value at position；(7) the joining of the targeting part of connecting-rod bolts and side fitting-up bolt and hole
Close gap to specify by table 8；(8) thread center's line of bolt should be not more than 0.04mm with guiding position centrage axiality.
Additionally bolt is as shown in table 1 with the close-fitting gap technology parameter request in hole:
Table 1 bolt and the close-fitting gap technology parameter request table in hole
We are processed the inspection of quality work after completion to fitting-up bolt peculiar to vessel according to technical parameter above simultaneously, check spiral shell
The finished surface of bolt, with or without damaging, plucking, deformation, the defect such as crackle, need after doing Non-Destructive Testing, Magnetic testing if desired into
Row demagnetization processes, boarding ship quality system of real name registration work etc. after fitting-up bolt processing completion.Add to improve further
Working medium amount.
Make machine shop that the passing rate of processing of fitting-up bolt peculiar to vessel preparation polish is brought up to more than 99% by the present invention, can
To establish complete fitting-up bolt peculiar to vessel preparation fine-processing technique and processing criterion, make the fitting-up bolt peculiar to vessel production before processing
Technique preparation, personnel equipment's environmental requirement, technological requirement, machining process, final inspection etc. form standardized work, with
Just more preferable Instructing manufacture, it is ensured that product quality；Set up super large marine coupling of shaft system fitting-up bolt processing work by research simultaneously
Skill and processing criterion, form the standardized work of science, be possible not only to raise the management level, guarantee production efficiency, cost efficiency,
Shorten shipbuilding period, simultaneously to establish enterprise-quality brand, formed good social prestige etc. have important economy and society effect
Benefit.
In sum, the present invention improves the qualification rate of bolt processing, and ensures the size of bolt hole, and then makes the lining of bolt
Comprehensive engagement between set and bolt hole, does not affect whole axle and fastens the transmission of moment, it is ensured that the security performance during use.Institute
With, the present invention effectively overcomes various shortcoming of the prior art and has high industrial utilization.
The principle of above-described embodiment only illustrative present invention and effect thereof, not for limiting the present invention.Any it is familiar with this skill
Above-described embodiment all can be modified under the spirit and the scope of the present invention or change by the personage of art.Therefore, such as
All that in art, tool usually intellectual is completed under without departing from disclosed spirit and technological thought etc.
Effect is modified or changes, and must be contained by the claim of the present invention.
Claims (10)
1. a bolt processing method, it is characterised in that described bolt processing method at least comprises the following steps:
S1, bolt light beam is processed；
S2, centre bore to the two ends end face of described bolt are processed；
S3, the upside (4) of described bolt light beam and downside (5) are carried out school circle, centre bore described in cavetto, and turning circle
Described centre bore inclined-plane so that the size of described centre bore reaches final size；
S4, adjust the linearity of described bolt light beam, and described bolt light beam is polished.
Bolt processing method the most according to claim 1, it is characterised in that: described step S1 comprises the following steps:
S11, clamp the lower end (2) of described bolt, and withstand the upper end (1) of described bolt；
The external diameter of (3) in the middle part of bolt light beam described in S12, light car, and pre-made allowance；
The external diameter of (3) in the middle part of bolt light beam described in S13, half finish turning；
The described upside (4) of bolt light beam described in S14, light car and described downside (5).
Bolt processing method the most according to claim 2, it is characterised in that: described step S2 comprises the following steps:
S21, clamp the described lower end (2) of described bolt, and hold the described upside (4) of described bolt；
S22, check and correct described upside (4) and the circularity of described downside (5)；
S23, the first centre bore to the described lower end (2) of described bolt are processed.
Bolt processing method the most according to claim 3, it is characterised in that: described step S3 comprises the following steps:
S31, clamp upper end (1) described in described bolt, and hold described downside (5) place of described bolt light beam；
S32, check and correct described upside (4) and described downside (5) circularity；
S33, the second centre bore in described lower end (2) is processed.
Bolt processing method the most according to claim 4, it is characterised in that: described step S4 comprises the following steps:
S41, fix described bolt by described first centre bore and described second centre bore, and ensure described bolt and grinding machine
Synchronous axial system；
S42, adjust the linearity of described bolt light beam, described bolt light beam is polished.
Bolt processing method the most according to claim 1, it is characterised in that: described step S1 comprises the following steps:
S11 ', clamping lower end (2), and withstand upper end (1)；
The external diameter of (3) in the middle part of bolt light beam described in S12 ', light car, and pre-made allowance；
Described in S13 ', light car, the gradient of upside (4) to described upside (4) reaches final size；
The size of the joint portion (6) of lower end (2) described in S14 ', light car and described bolt light beam to described joint portion (6)
Reach final size.
Bolt processing method the most according to claim 6, it is characterised in that: described step S2 comprises the following steps:
S21 ', clamp described lower end (2), and hold described upper end (1)；
S22 ', check and correct the circularity of described upside (4) and described downside (5) two ends；
S23 ', the first centre bore to described upper end (1) are processed.
Bolt processing method the most according to claim 7, it is characterised in that: described step S3 comprises the following steps:
S31 ', clamping described upper end (1), and hold described lower end (2), described lower end (2) are away from described upper end (1)
Side be provided with vexed plug (7)；
S32 ', check and correct described in described bolt light beam upside (4) and the circularity at described downside (5) two ends；
S33 ', the second centre bore on described vexed plug (7) is processed.
Bolt processing method the most according to claim 8, it is characterised in that: described step S4 comprises the following steps:
S41 ', fix described bolt by described first centre bore and described second centre bore, and ensure described bolt and grinding machine
Synchronous axial system；
S42 ', adjust the linearity of described bolt light beam, described bolt light beam is polished；
S43 ', it is ground to require size and plane by described joint portion (6).
10. according to the bolt processing method described in any one of claim 1 to 9, it is characterised in that: described step S3 also includes
Following steps:
Judge that described centre bore and final size deviation are the biggest, if otherwise revising gradient and the width of described centre bore, if
It is to enter step S4 behind the aperture of then centre bore described in cavetto.
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| CN201510571304.8A CN105880936B (en) | 2015-09-10 | 2015-09-10 | bolt processing method |
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| CN107023554A (en) * | 2017-04-28 | 2017-08-08 | 湖北玖天机车部件有限公司 | A kind of double end tooth stud and preparation method thereof |
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| CN105880936B (en) | 2018-11-16 |
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Effective date of registration: 20181214 Address after: 201913 No. 988 Changxing Jiangnan Avenue, Chongming District, Shanghai Patentee after: Jiannan Shipbuilding (Group) Co., Ltd. Address before: 201913 1888 Jiangnan Avenue, Changxing Township, Chongming County, Shanghai Patentee before: Shanghai Jiangnan Changxing Heavy Industry Co.,Ltd. |