CN109794810A - Method for removing surface defects of roller - Google Patents
Method for removing surface defects of roller Download PDFInfo
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- CN109794810A CN109794810A CN201811235905.1A CN201811235905A CN109794810A CN 109794810 A CN109794810 A CN 109794810A CN 201811235905 A CN201811235905 A CN 201811235905A CN 109794810 A CN109794810 A CN 109794810A
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- 238000000034 method Methods 0.000 title claims abstract description 61
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- 238000000227 grinding Methods 0.000 claims abstract description 271
- 238000005259 measurement Methods 0.000 claims abstract description 28
- 238000005520 cutting process Methods 0.000 claims description 8
- 239000012530 fluid Substances 0.000 claims description 8
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- 238000005096 rolling process Methods 0.000 description 8
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- 238000004519 manufacturing process Methods 0.000 description 7
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- 235000005035 Panax pseudoginseng ssp. pseudoginseng Nutrition 0.000 description 5
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- 230000004888 barrier function Effects 0.000 description 1
- 238000005097 cold rolling Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
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- 239000004519 grease Substances 0.000 description 1
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Abstract
The invention discloses a method for removing surface defects of a roller, which belongs to the technical field of roller grinding processes, and is characterized in that the angular speed of a grinding wheel is adjusted according to the diameter of the grinding wheel by measuring and adjusting various working parameters of a grinding machine; fixedly mounting a roller and a grinding machine, and selecting a grinding mode according to the type of the roller; after the grinding wheel and the roller are subjected to tool setting, rough grinding is carried out; judging whether the grinding current value and the grinding roller shape in the rough grinding process meet a first preset condition or not; starting primary semi-finish grinding, and judging whether the grinding current value in the primary semi-finish grinding process meets a second preset condition; chamfering the two ends of the roller; starting secondary semi-finish grinding, and judging whether the roller after the secondary semi-finish grinding meets a third preset condition; starting to carry out fine grinding, and judging whether the roller after the finish grinding meets a fourth preset condition or not; measurement data of the roll is obtained. The technical effects of improving the working efficiency, ensuring the surface quality of the roller and saving the grinding time are achieved.
Description
Technical field
The present invention relates to roll grinding processes technical field, in particular to a kind of method for removing roller surface defect.
Background technique
Roll damages during steel plate rolling because the reasons such as high-temperature oxydation and mechanical wear will lead to roll surface geometric accuracy,
It needs periodically to carry out grinding reparation to roll surface, and in order to meet the technique requirement to strip control, roll surface needs are pressed
According to technique requirement, it is processed into required curve shape, roughness and removal fatigue layer etc..The knife mark that generates in grinding, is drawn shake line
Influence of the defects of the hurting to roller surface quality, and these defects can print to belt steel surface, seriously affect product quality.Grinding
Defect is eliminated, it is found and generates internal cause, external cause, setting grinding program parameter etc. can propose the raising of product quality and production efficiency
It rises and plays an important role.In cold-rolling process, the surface quality of roll, roughness, wearability and anti-accident ability are wanted
Ask high in the extreme, wherein the requirement to roughness and wearability is higher.With producing line difference steel grade, different size and high quality
Surface grade it is more and more, the rhythm of production of producing line is also gradually being accelerated, and wherein producing line is to roughness and roll in machine
It rolls milimeter number and uses the requirement of time also higher and higher.
But present inventor during inventive technique scheme, has found above-mentioned technology extremely in realizing the embodiment of the present application
It has the following technical problems less:
And traditional method for grinding is not able to satisfy because of frequent roll change caused by rolling different size steel grade, not only increases personnel
Labor intensity, and the appearance of the standby roller situation such as parking or deceleration is even resulted in, directly affect producing line yield.
Summary of the invention
The present invention provides it is a kind of remove roller surface defect method, to solve traditional method for grinding be not able to satisfy because
Frequent roll change caused by rolling different size steel grade, cannot be ground out the skill of the roll of surface quality up to standard in a short time
Art problem has reached raising working efficiency, guarantees roller surface quality, saves the grinding time, is provided with and tries hard to keep for producing line production
The technical effect of barrier.
The present invention provides a kind of methods for removing roller surface defect, which comprises step 1: measuring and adjust
Each running parameter of grinding machine, and grinding wheel angular speed is adjusted according to grinding wheel diameter；Step 2: roll and grinding machine are fixedly mounted, and according to
Roll type selects grinding method；Step 3: by grinding wheel and roll to knife after, start to carry out corase grinding and cut；Step 4: judgement corase grinding is cut
Whether grinding current value in the process, grinding roll shape meet the first predetermined condition, if not satisfied, after then adjusting thick grinding parameter,
Execute step 3；If satisfied, thening follow the steps 5；Step 5: starting to carry out half fine ginding of level-one, and judge half fine ginding mistake of level-one
Whether the grinding current value in journey meets the second predetermined condition, if not satisfied, executing step 3 after then adjusting thick grinding parameter；If
Meet, thens follow the steps 6；Step 6: two end chamfer of roll；Step 7: starting to carry out half fine ginding of second level, and judge half essence of second level
Whether roll after grinding meets third predetermined condition, if not satisfied, thening follow the steps 5；If satisfied, thening follow the steps 8；Step
8: starting to carry out fine ginding, and judge whether the roll after fine ginding meets the 4th predetermined condition, if not satisfied, then adjusting
Step 3 is executed after parameter；If satisfied, thening follow the steps 9；Step 9: obtaining the measurement data of roll, and judge the coarse of roll
Whether degree if being in, the measurement data is recorded, if being not at, thens follow the steps 8 in preset range.
Preferably, in the step 1, the measurement simultaneously adjusts each running parameter of grinding machine, further includes: measurement grinding fluid is dense
Degree, and control the grinding fluid concentration within a preset range；Measurement support watt height, and be adjusted according to preset height；It adjusts
Hold in the palm watt oil stream amount, wherein side watt is 35-40 drop/minute.
Preferably, in the step 3, the grinding wheel angular speed during the corase grinding is cut is 640-660RPM, and roll turns
Speed is 50rap, and Z axis movement speed is 2600-2800mm/min, and it is 26-28% that corase grinding, which cuts pressure to current value,.
Preferably, first predetermined condition specifically: the current value during the corase grinding is cut is in pre-determined stability model
In enclosing, and the variation range of roll shape is ground within -0.1~+0.1mm.
Preferably, in the step 5, the grinding wheel angular speed during half fine ginding of level-one is 600-620RPM,
Roll rotational speed is 52rap, and Z axis movement speed is 1900-2100mm/min, and pressure value grinding force current value is 20-22%.
Preferably, in the step 5, second predetermined condition specifically: during half fine ginding of level-one
Current value is within the scope of pre-determined stability.
Preferably, in the step 6, when the roller chamfering, grinding wheel angular speed is 580-600RPM, and roll rotational speed is
52rap, Z axis movement speed are 500mm/min.
Preferably, in the step 7, the grinding wheel angular speed during half fine ginding of second level is 580-600RPM,
Roll rotational speed is 52rap, and Z axis movement speed is 1700mm/min, and grinding force current value is 17-20%.
Preferably, the third predetermined condition specifically: after half fine ginding of second level, be ground generation chatter mark and
Wide knife mark reaches default elimination degree；4th predetermined condition specifically: after the fine ginding, the roll surface without
Knife mark, chatter mark, white seal, scuffing.
Preferably, the measurement data includes roll shape, roller diameter, eddy current inspection, ultrasonic examination, roughness.
Said one or multiple technical solutions in the embodiment of the present invention at least have following one or more technology effects
Fruit:
A kind of method removing roller surface defect provided in an embodiment of the present invention, which comprises step 1: measurement
And each running parameter of grinding machine is adjusted, and grinding wheel angular speed is adjusted according to grinding wheel diameter；Step 2: roll and grinding machine are fixedly mounted,
And grinding method is selected according to roll type；Step 3: by grinding wheel and roll to knife after, start to carry out corase grinding and cut；Step 4: judgement
It roughly grinds the grinding current value during cutting, be ground whether roll shape meets the first predetermined condition, if not satisfied, then adjusting corase grinding cuts ginseng
After number, step 3 is executed；If satisfied, thening follow the steps 5；Step 5: starting to carry out half fine ginding of level-one, and judge that level-one half is refined
Whether the grinding current value during cutting meets the second predetermined condition, if not satisfied, executing step after then adjusting thick grinding parameter
3；If satisfied, thening follow the steps 6；Step 6: two end chamfer of roll；Step 7: starting to carry out half fine ginding of second level, and judge second level
Whether the roll after half fine ginding meets third predetermined condition, if not satisfied, thening follow the steps 5；If satisfied, thening follow the steps 8；
Step 8: starting to carry out fine ginding, and judge whether the roll after fine ginding meets the 4th predetermined condition, if not satisfied, then
Step 3 is executed after adjusting parameter；If satisfied, thening follow the steps 9；Step 9: obtaining the measurement data of roll, and judge roll
Whether roughness is in preset range, if being in, the measurement data is recorded, if being not at, is thened follow the steps
8.To solve frequent roll change caused by traditional method for grinding is not able to satisfy because of rolling different size steel grade, not only increase duty
Work labor intensity, and the appearance of the standby roller situation such as parking or deceleration is even resulted in, the technology for directly affecting producing line yield is asked
Topic, has reached the method by using " camp step by step, do things steadily and surely ", and grinding can realize the primary success of grinding substantially, both mention
High working efficiency, in turn ensures roller surface quality, is greatly saved the grinding time, parameter setting and grinding process rule
20 minutes can at least be shifted to an earlier date compared to blindness grinding or multiple grinding of doing over again by following, and improve working efficiency 30%, raw for producing line
Production provides the technical effect of sound assurance.
The above description is only an overview of the technical scheme of the present invention, in order to better understand the technical means of the present invention,
And it can be implemented in accordance with the contents of the specification, and in order to allow above and other objects of the present invention, feature and advantage can
It is clearer and more comprehensible, the followings are specific embodiments of the present invention.
Detailed description of the invention
Fig. 1 is a kind of flow diagram for the method for removing roller surface defect in the embodiment of the present invention；
Fig. 2 is a kind of another flow diagram for the method for removing roller surface defect in the embodiment of the present invention.
Specific embodiment
The embodiment of the invention provides a kind of methods for removing roller surface defect, cannot to solve traditional method for grinding
Frequent roll change caused by meeting because of rolling different size steel grade, cannot be ground out rolling for surface quality up to standard in a short time
The technical issues of roller.
Technical solution in the embodiment of the present invention, general thought are as follows:
A kind of method removing roller surface defect provided in an embodiment of the present invention, passes through step 1: measuring and adjust grinding machine
Each running parameter, and grinding wheel angular speed is adjusted according to grinding wheel diameter；Step 2: roll and grinding machine being fixedly mounted, and according to roll
Type selects grinding method；Step 3: by grinding wheel and roll to knife after, start to carry out corase grinding and cut；Step 4: judging thick grinding process
In grinding current value, grinding roll shape whether meet the first predetermined condition, if not satisfied, after then adjusting thick grinding parameter, execute
Step 3；If satisfied, thening follow the steps 5；Step 5: starting to carry out half fine ginding of level-one, and during judging half fine ginding of level-one
Grinding current value whether meet the second predetermined condition, if not satisfied, after then adjusting thick grinding parameter, execute step 3；If full
Foot, thens follow the steps 6；Step 6: two end chamfer of roll；Step 7: starting to carry out half fine ginding of second level, and judge that second level half is refined
Whether the roll after cutting meets third predetermined condition, if not satisfied, thening follow the steps 5；If satisfied, thening follow the steps 8；Step 8:
Start to carry out fine ginding, and judge whether the roll after fine ginding meets the 4th predetermined condition, if not satisfied, then adjusting ginseng
Step 3 is executed after number；If satisfied, thening follow the steps 9；Step 9: obtaining the measurement data of roll, and judge the roughness of roll
Whether in preset range, if being in, the measurement data is recorded, if being not at, thens follow the steps 8.Reach
Raising working efficiency guarantees roller surface quality, saves the grinding time, the technology effect provided a strong guarantee for producing line production
Fruit.
In order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below in conjunction with the embodiment of the present invention
In attached drawing, technical scheme in the embodiment of the invention is clearly and completely described, it is clear that described embodiment is
A part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, those of ordinary skill in the art
Every other embodiment obtained without making creative work, shall fall within the protection scope of the present invention.
Embodiment one
Fig. 1 is a kind of flow diagram for the method for removing roller surface defect in the embodiment of the present invention, as shown in Figure 1,
The described method includes:
Step 1: measuring and adjust each running parameter of grinding machine, and grinding wheel angular speed is adjusted according to grinding wheel diameter.
Further, in the step 1, the measurement simultaneously adjusts each running parameter of grinding machine, further includes: measurement grinding fluid
Concentration, and control the grinding fluid concentration within a preset range；Measurement support watt height, and be adjusted according to preset height；It adjusts
Jie Tuowa oil stream amount, wherein side watt is 35-40 drop/minute.
Specifically, method provided by the present embodiment is executed by the first class control system that the equipment such as PLC are constituted, first
It is preliminary preparation, specifically includes that and check each position for needing to refuel or change oil of grinding machine according to grease standard, only
Ensuring to lubricate well just can make grinding machine normally continuously work；Grinding fluid concentration is measured, is controlled in claimed range；Measurement support
Watt height, and be adjusted according to standard requirements height；Holder for regulating watt oil stream amount, side watt are 35-40 drop/minute；Grinding wheel is modified,
PASSES is set as 10-15, repairs new grinding wheel generally in 20-25；It as shown in table 1, can be according to needed for being ground different roll types
Different roughness range selects the type of grinding wheel, meanwhile, grinding wheel angular speed is adjusted according to grinding wheel diameter, guarantees grinding wheel spindle rotation
Stablize, it is ensured that stable grinding force.During grinding wheel reconditioning, change the revolving speed of grinding wheel, change when some passage closes to an end
Revolving speed: for grinding wheel diameter in 530MM or more, GRINDING WHEEL SPEED variable quantity is 25-30M/S；Grinding wheel diameter exists
When 530MM or less, GRINDING WHEEL SPEED variable quantity is 20-25M/S.Impulse that dynamic (i.e. wheel operating is full in order to avoid being produced from
The condition of foot (N+1/4), regenerative spiral shake line can be eliminated.Effectively control revolving speed is needed when repairing grinding wheel, repairs grinding wheel process
In, when changing revolving speed, increase the 1/4 of revolving speed at this time, to eliminate regenerative spiral shake line.In addition, sharp finishing, diamond
It also contributes to eliminating this chatter mark.
The type of the selection grinding wheel of different roughness range needed for 1. roll type of table
Step 2: roll and grinding machine being fixedly mounted, and grinding method is selected according to roll type.
Specifically, roll to be ground is hung to immediately ahead of grinding machine, installation of driver by grinding machine on roll.Later, it then follows
" two confirmations ", i.e. confirmation roll moving direction clear, roll are smoothly moved to right above two bracket of grinding machine；Confirmation is flat
Face driver plate, bracket, tailstock three position whether match with roll type to be ground.After the completion of confirmation, by roll without impact ground
It puts to soft landing.Suspension hook is risen to specified altitude and leaves grinding machine by removal suspender.Then fall soft landing, adjustment under tile and
Side watt oil pipe is adjusted to bearing position, guarantees that oil droplet drops down onto side watt and bearing position contact position by side watt oil pump capacity.According to rolling
Roller type selects correct grinding program, is coupled.Inching button, head frame planar disk are stretched out；The advance of crawl tailstock thimble is pressed
Button makes thimble close to roll end.
Step 3: by grinding wheel and roll to knife after, start to carry out corase grinding and cut；
Further, in the step 3, the grinding wheel angular speed during the corase grinding is cut is 640-660RPM, roll
Revolving speed is 50rap, and Z axis movement speed is 2600-2800mm/min, and it is 26-28% that corase grinding, which cuts pressure to current value,.
Specifically, under the premise of mechanical, electrical aspect adjustment setting is normal, when grinding program is set, corase grinding feeding
Amount and current value cause the defect occurred must be in half fine grinding and fine grinding controlled range, and half refines to eliminate corase grinding appearance
Based on defect, refines the final grinding of main control and require, including scuffing, knife mark, chatter mark etc. are up to standard and roughness is qualified, this is
Grinding program sets the rule that should be followed, and is able to achieve and reaches grinding requirement, improves grinding efficiency.In grinding process, because of grinding wheel
Consumption, diameter gradually becomes smaller, and needs to guarantee that angular speed is stablized, and therefore, grinding wheel angular speed is 640-660RPM when corase grinding, and roll turns
Speed is 50rap, and the control of Z axis movement speed is controlled in 2600-2800mm/min, grinding force current value in 26-28%, and corase grinding is answered
For the basis that entire grinding process has been laid, X-axis continues the amount of feeding and does not answer excessive, and CONTINIUS INFEED setting exists
0.02-0.03MM/MIN。
Step 4: judging whether the grinding current value during corase grinding is cut, grinding roll shape first meet predetermined condition, if not
Meet, then after adjusting thick grinding parameter, executes step 3；If satisfied, thening follow the steps 5；
Further, first predetermined condition specifically: the current value during the corase grinding is cut is in pre-determined stability
In range, and the variation range of roll shape is ground within -0.1~+0.1mm.
Specifically, needing to observe the stable state of grinding current value constantly in grinding process, and guarantee corase grinding grinding
Current value stablize, observation grinding roll shape whether within the scope of controllable red line and stock removal and grinding passage relative equilibrium, can assist
It adjusts.After the completion of parameter setting, there is unstable state fluctuated in corase grinding grinding current value, when intermediate difference is greater than 6, such as
When grinding force is high be higher than 28%, when low be lower than 22% when, can determine that it is unstable, i.e., grinding current value, grinding roll shape be unsatisfactory for
First predetermined condition, answering shutdown inspection, whether there is or not mechanical, electrical aspect failures, after above-mentioned checked, when without mechanical, electrical
The failure of aspect after reducing grinding and feeding amount, reduces Z axis speed, 10 passages to be ground or so, observation grinding current value shape
State；After the grinding current value is stablized, grinding and feeding amount and Z axis speed are restored, observation grinding passage and stock removal are in opposite
Balance, tuneable state.Adjust grinding parameter.According to roll type, roller diameter, grinding wheel diameter, grinding wheel grain number and material
Adjust the important grinding parameters such as roll rotational speed, grinding wheel speed, grinding current value, the X-axis amount of feeding and Z axis movement speed.Adjustment ginseng
After the completion of number, starting automatic mode grinding, confirmation meets the following conditions: all reference points are in place；Roll is on lathe
In place；The lathe bed data of calibration have stored；Grinding program and roll shape meet the roll having been placed in；The roll number of grinding program
It is correct according to input.Start to be ground, roughly grind.In grinding process, " three observations " is carried out, i.e., whether observation grinding current value is stable；It sees
Grinding roll shape is examined whether within the scope of controllable red line；Whether observation grinding passage is coordinated with stock removal.If there is exception, stop mill
It cuts, excludes mechanical, electrical, hydraulic and filtration system failure, after adjusting grinding parameter, be ground again.
Further, corase grinding parameter setting should be ground final roughness and provide premise, and corase grinding parameter setting should be institute
It is ground final roughness and premise is provided, level-one half, which refines parameter setting, need to can guarantee the wide knife mark for generating corase grinding and the shake big portion of line
Divide and eliminates, and the defects of parameter setting is to eliminate knife mark, chatter mark, scuffing, white seal and guarantee are refined and refined to second level half most
Whole roughness.And refined and fine grinding grinding passage eliminates Grinding defects by increasing by half, not only will appear " polishing " phenomenon, i.e., by
Roughness, which falls sharply, to be caused, and can generate covibration, chatter mark occurs, so beginning to focus on grinding quality from corase grinding is to guarantee respectively
Item grinding requires qualified important prerequisite guarantee.
Step 5: starting to carry out half fine ginding of level-one, and judge whether the grinding current value during half fine ginding of level-one is full
The second predetermined condition of foot, if not satisfied, executing step 3 after then adjusting thick grinding parameter；If satisfied, thening follow the steps 6.
Further, the grinding wheel angular speed during half fine ginding of level-one is 600-620RPM, and roll rotational speed is
52rap, Z axis movement speed are 1900-2100mm/min, and grinding force current value is 20-22%.
Further, in the step 5, second predetermined condition specifically: during half fine ginding of level-one
Current value be within the scope of pre-determined stability.
Step 6: two end chamfer of roll.
Further, in the step 6, when the roller chamfering, grinding wheel angular speed is 580-600RPM, roll rotational speed
For 52rap, Z axis movement speed is 500mm/min.
Specifically, carrying out level-one half after roughly grinding without exception and refining.In half lapping process of level-one, moment observation
It is ground the stable state of current value, and guarantees to be ground stable current value and stock removal and grinding passage relative equilibrium, can assist
It adjusts.When being ground stable current value and stock removal and grinding passage relative equilibrium, tunable, continue next step, otherwise
Since corase grinding.Wherein, half finishing wheel angular speed of level-one is 600-620RPM, roll rotational speed 52rap, Z axis movement speed control
System continues amount of feeding CONTINIUSINFEED setting in 20-22 or so, X-axis in 1900-2100mm/min, pressure value control
In 0.01-0.02MM/MIN, passage is generally at 3-4.
When there is grinding, current value is unstable or the grinding current value deviation of roll surface two sides is big, should shut down, check
Mechanical, the whether faulty appearance of electrical aspect；It is described checked after, should be from corase grinding weight when the failure without mechanical, electrical aspect
New grinding is to eliminate unstable factor bring Grinding defects, after roughly grinding and stablizing, refines into level-one half, observation grinding electric current
State of value；After the grinding current value is stablized, observation grinding passage and stock removal relative equilibrium, tunable state, and check
Roller surface quality, the defects of especially roughly grinding the wide knife mark of generation, scratching, refine in level-one half and can be effectively controlled.
After level-one half, which is refined, Grinding defects occurs, after excluding mechanical, electrical aspect failure, from corase grinding adjusting parameter
Afterwards, it is ground, to eliminate unstable factor bring Grinding defects, after roughly grinding and stablizing, is refined into level-one half, level-one half again
The defects of refining the last one passage and check roller surface quality, especially roughly grinding the wide knife mark of generation, scratch is refined in level-one half
Can be effectively controlled: when grinding is stablized, surface defect is effectively controlled, when roller chamfering, grinding wheel angular speed (580-
600) RPM, roll rotational speed 52rap, for the control of Z axis movement speed in 500mm/min, passage is each 1 of both ends；It observes on wheel guard
The grinding fluid duckbilled state of side, guarantees to be sprayed onto abrasive wheel end face two sides, avoids causing chamfering cracked because of localized burn.
Step 7: starting to carry out half fine ginding of second level, and it is predetermined to judge whether the roll after half fine ginding of second level meets third
Condition, if not satisfied, thening follow the steps 5；If satisfied, thening follow the steps 8.
Further, in the step 7, the grinding wheel angular speed during half fine ginding of second level is 580-
600RPM, roll rotational speed 52rap, Z axis movement speed are 1700mm/min, and grinding force current value is 17-20%.
Further, the third predetermined condition specifically: after half fine ginding of second level, be ground the chatter mark of generation
Reach default elimination degree with wide knife mark.
Specifically, machinery, electrical aspect are normal after chamfering smoothly completes, grinding current value is stablized, and starts carry out two
Grade half is refined, wherein half finishing wheel angular speed of second level is 580-600RPM, roll rotational speed 52rap, the control of Z axis movement speed
In 1700mm/min, pressure value is controlled in 17-20 or so, and passage is generally at 2-3 times；In grinding process, moment observation grinding
The stable state of current value checks roller surface quality when being ground the last one passage.In half lapping process of second level, by thick
Mill and level-one half are refined, and the chatter mark and wide knife mark for being ground generation substantially eliminate, or can have slight knife mark.Otherwise, it needs to adjust ginseng
Number is since being cut corase grinding, and cutting from corase grinding is initially to guarantee that roughness is in claimed range after grinding, and corase grinding passage can accordingly subtract
It is few, generally in 2-3 passage.Therefore, it is refined by second level half and is greatly improved to roller surface quality control.
Step 8: start to carry out fine ginding, and judges whether the roll after fine ginding meets the 4th predetermined condition, if
It is unsatisfactory for, then executes step 3 after adjusting parameter；If satisfied, thening follow the steps 9；
Further, the 4th predetermined condition specifically: after the fine ginding, the roll surface without knife mark,
Chatter mark, white seal, scuffing.
Specifically, fine grinding is the grinding of final step, there is very important effect to the control of final grinding quality, when
After fine grinding is completed, that is, need to check roll surface quality after being ground, roll surface should without knife mark, chatter mark, white seal, scratch the defects of,
Roughness is measured in claimed range.Otherwise, adjusting parameter restarts in corase grinding.Fine grinding is qualified.DATA REASONING is carried out, including
Roll shape, roller diameter, eddy current inspection, ultrasonic examination, roughness concentration.
Step 9: the measurement data of roll is obtained, and judges whether the roughness of roll is in preset range, if being in,
Then the measurement data is recorded, if being not at, thens follow the steps 8.
Further, the measurement data includes roll shape, roller diameter, eddy current inspection, ultrasonic examination, roughness.
Specifically, carrying out DATA REASONING, including roll shape, roller diameter, eddy current inspection, ultrasonic wave after fine grinding
Flaw detection, roughness concentration；When the roughness of measurement is requiring in control range, then grinding machine under roll, applies antirust oil, package.Solution
Coupling.Roll is hung to by overhead traveling crane specifies region to be assembled.Otherwise it after needing adjusting parameter, cuts and re-starts from corase grinding.Further,
After the DATA REASONING is qualified, typing roller management system, to online use.
As shown in Fig. 2, being able to achieve the primary success of grinding substantially according to flow chart grinding, not only improved work efficiency, but also protect
Roller surface quality has been demonstrate,proved, the roller surface qualities such as roller surface knife mark, chatter mark, white seal defect has been efficiently controlled and has been ensured thick
Rugosity is qualified, is greatly saved the grinding time, and following for such parameter setting and grinding process can be than blindness grinding and more
It is secondary to do over again grinding at least 20 minutes in advance, working efficiency 30% is improved, provides sound assurance for producing line production.
Said one or multiple technical solutions in the embodiment of the present invention at least have following one or more technology effects
Fruit:
A kind of method removing roller surface defect provided in an embodiment of the present invention, which comprises step 1: measurement
And each running parameter of grinding machine is adjusted, and grinding wheel angular speed is adjusted according to grinding wheel diameter；Step 2: roll and grinding machine are fixedly mounted,
And grinding method is selected according to roll type；Step 3: by grinding wheel and roll to knife after, start to carry out corase grinding and cut；Step 4: judgement
It roughly grinds the grinding current value during cutting, be ground whether roll shape meets the first predetermined condition, if not satisfied, then adjusting corase grinding cuts ginseng
After number, step 3 is executed；If satisfied, thening follow the steps 5；Step 5: starting to carry out half fine ginding of level-one, and judge that level-one half is refined
Whether the grinding current value during cutting meets the second predetermined condition, if not satisfied, executing step after then adjusting thick grinding parameter
3；If satisfied, thening follow the steps 6；Step 6: two end chamfer of roll；Step 7: starting to carry out half fine ginding of second level, and judge second level
Whether the roll after half fine ginding meets third predetermined condition, if not satisfied, thening follow the steps 5；If satisfied, thening follow the steps 8；
Step 8: starting to carry out fine ginding, and judge whether the roll after fine ginding meets the 4th predetermined condition, if not satisfied, then
Step 3 is executed after adjusting parameter；If satisfied, thening follow the steps 9；Step 9: obtaining the measurement data of roll, and judge roll
Whether roughness is in preset range, if being in, the measurement data is recorded, if being not at, is thened follow the steps
8.To solve frequent roll change caused by traditional method for grinding is not able to satisfy because of rolling different size steel grade, not only increase duty
Work labor intensity, and the appearance of the standby roller situation such as parking or deceleration is even resulted in, the technology for directly affecting producing line yield is asked
Topic, has reached the method by using " camp step by step, do things steadily and surely ", and grinding can realize the primary success of grinding substantially, both mention
High working efficiency, in turn ensures roller surface quality, is greatly saved the grinding time, parameter setting and grinding process rule
20 minutes can at least be shifted to an earlier date compared to blindness grinding or multiple grinding of doing over again by following, and improve working efficiency 30%, raw for producing line
Production provides the technical effect of sound assurance.
Although preferred embodiments of the present invention have been described, it is created once a person skilled in the art knows basic
Property concept, then additional changes and modifications can be made to these embodiments.So it includes excellent that the following claims are intended to be interpreted as
It selects embodiment and falls into all change and modification of the scope of the invention.
Obviously, those skilled in the art can carry out various modification and variations without departing from this hair to the embodiment of the present invention
The spirit and scope of bright embodiment.In this way, if these modifications and variations of the embodiment of the present invention belong to the claims in the present invention
And its within the scope of equivalent technologies, then the present invention is also intended to include these modifications and variations.
Claims (10)
1. a kind of method for removing roller surface defect, which is characterized in that the described method includes:
Step 1: measuring and adjust each running parameter of grinding machine, and grinding wheel angular speed is adjusted according to grinding wheel diameter；
Step 2: roll and grinding machine being fixedly mounted, and grinding method is selected according to roll type；
Step 3: by grinding wheel and roll to knife after, start to carry out corase grinding and cut；
Step 4: judge whether the grinding current value during corase grinding is cut, grinding roll shape meet the first predetermined condition, if not satisfied,
After then adjusting thick grinding parameter, step 3 is executed；If satisfied, thening follow the steps 5；
Step 5: starting to carry out half fine ginding of level-one, and judge whether the grinding current value during half fine ginding of level-one meets the
Two predetermined conditions, if not satisfied, executing step 3 after then adjusting thick grinding parameter；If satisfied, thening follow the steps 6；
Step 6: two end chamfer of roll；
Step 7: starting to carry out half fine ginding of second level, and judge whether the roll after half fine ginding of second level meets the predetermined item of third
Part, if not satisfied, thening follow the steps 5；If satisfied, thening follow the steps 8；
Step 8: starting to carry out fine ginding, and judge whether the roll after fine ginding meets the 4th predetermined condition, if discontented
Foot then executes step 3 after adjusting parameter；If satisfied, thening follow the steps 9；
Step 9: the measurement data of roll is obtained, and judges whether the roughness of roll is in preset range, it, will if being in
The measurement data is recorded, if being not at, thens follow the steps 8.
2. the method as described in claim 1, which is characterized in that in the step 1, the measurement simultaneously adjusts grinding machine and respectively works
Parameter, further includes:
Grinding fluid concentration is measured, and controls the grinding fluid concentration within a preset range；
Measurement support watt height, and be adjusted according to preset height；
Holder for regulating watt oil stream amount, wherein side watt is 35-40 drop/minute.
3. the method as described in claim 1, which is characterized in that in the step 3, the grinding wheel angle roughly ground during cutting
Speed is 640-660RPM, and roll rotational speed 50rap, Z axis movement speed is 2600-2800mm/min, and corase grinding cuts pressure to current
Value is 26-28%.
4. the method as described in claim 1, which is characterized in that first predetermined condition specifically:
Current value during the corase grinding is cut be within the scope of pre-determined stability, and the variation range of grinding roll shape -0.1~+
Within 0.1mm.
5. the method as described in claim 1, which is characterized in that in the step 5, during half fine ginding of level-one
Grinding wheel angular speed is 600-620RPM, and roll rotational speed 52rap, Z axis movement speed is 1900-2100mm/min, grinding force
Current value is 20-22%.
6. the method as described in claim 1, which is characterized in that in the step 5, second predetermined condition specifically:
Current value during half fine ginding of level-one is within the scope of pre-determined stability.
7. the method as described in claim 1, which is characterized in that in the step 6, when the roller chamfering, grinding wheel angle speed
Degree is 580-600RPM, and roll rotational speed 52rap, Z axis movement speed is 500mm/min.
8. the method as described in claim 1, which is characterized in that in the step 7, during half fine ginding of second level
Grinding wheel angular speed is 580-600RPM, and roll rotational speed 52rap, Z axis movement speed is 1700mm/min, grinding force current value
For 17-20%.
9. the method as described in claim 1, which is characterized in that the third predetermined condition specifically: the second level half is refined
After cutting, the chatter mark and wide knife mark for being ground generation reach default elimination degree；
4th predetermined condition specifically: after the fine ginding, the roll surface without knife mark, chatter mark, white seal, draw
Wound.
10. the method as described in claim 1, which is characterized in that the measurement data includes roll shape, roller diameter, vortex spy
Wound, ultrasonic examination, roughness.
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| CN110340149A (en) * | 2019-07-19 | 2019-10-18 | 首钢京唐钢铁联合有限责任公司 | roller and grinding method thereof |
| CN110434683A (en) * | 2019-07-31 | 2019-11-12 | 日照宝华新材料有限公司 | The passivation method for grinding of applicator roll topographic diagonal in a kind of elimination zincincation |
| CN112861394A (en) * | 2021-01-19 | 2021-05-28 | 北京科技大学 | Cold-rolling roller grinding amount optimization method and system based on genetic particle swarm optimization |
| CN113547281A (en) * | 2021-07-06 | 2021-10-26 | 山西太钢不锈钢股份有限公司 | Method for repairing surface cracks of leveling roller and performing nondestructive testing |
| CN113910006A (en) * | 2021-09-28 | 2022-01-11 | 内蒙古联晟新能源材料有限公司 | Method for repairing surface quality of working roller |
| CN114055609A (en) * | 2021-10-28 | 2022-02-18 | 冷水江市鑫达耐火材料制造有限公司 | Automatic grinding/slitting system for refractory bricks |
| CN115008278A (en) * | 2022-04-28 | 2022-09-06 | 广东韶钢松山股份有限公司 | Method for repairing supporting roller |
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| CN110434683A (en) * | 2019-07-31 | 2019-11-12 | 日照宝华新材料有限公司 | The passivation method for grinding of applicator roll topographic diagonal in a kind of elimination zincincation |
| CN112861394A (en) * | 2021-01-19 | 2021-05-28 | 北京科技大学 | Cold-rolling roller grinding amount optimization method and system based on genetic particle swarm optimization |
| CN113547281A (en) * | 2021-07-06 | 2021-10-26 | 山西太钢不锈钢股份有限公司 | Method for repairing surface cracks of leveling roller and performing nondestructive testing |
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| CN114055609A (en) * | 2021-10-28 | 2022-02-18 | 冷水江市鑫达耐火材料制造有限公司 | Automatic grinding/slitting system for refractory bricks |
| CN115008278A (en) * | 2022-04-28 | 2022-09-06 | 广东韶钢松山股份有限公司 | Method for repairing supporting roller |
| CN115008278B (en) * | 2022-04-28 | 2023-10-31 | 广东韶钢松山股份有限公司 | Backup roll repairing method |
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