CN106625247A - High-precision double-faced grinding machine processing method based on DSP control - Google Patents
High-precision double-faced grinding machine processing method based on DSP control Download PDFInfo
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- CN106625247A CN106625247A CN201710014949.0A CN201710014949A CN106625247A CN 106625247 A CN106625247 A CN 106625247A CN 201710014949 A CN201710014949 A CN 201710014949A CN 106625247 A CN106625247 A CN 106625247A
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- Prior art keywords
- grinding
- error
- grinding machine
- high accuracy
- dsp control
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B51/00—Arrangements for automatic control of a series of individual steps in grinding a workpiece
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B7/00—Machines or devices designed for grinding plane surfaces on work, including polishing plane glass surfaces; Accessories therefor
- B24B7/10—Single-purpose machines or devices
- B24B7/16—Single-purpose machines or devices for grinding end-faces, e.g. of gauges, rollers, nuts, piston rings
- B24B7/17—Single-purpose machines or devices for grinding end-faces, e.g. of gauges, rollers, nuts, piston rings for simultaneously grinding opposite and parallel end faces, e.g. double disc grinders
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Grinding Of Cylindrical And Plane Surfaces (AREA)
Abstract
The invention discloses a high-precision double-faced grinding machine based on DSP control and an error compensation method thereof. The grinding machine comprises a rack, a double-faced grinding device, a feeding device, a dust removal device, a cooling device, a discharge support, a feeding slide rail and a grinding automatic control device, wherein the double-faced grinding device comprises a left abrasive wheel, a right abrasive wheel, and the left abrasive wheel and the right abrasive wheel are driven by abrasive wheel driving motors respectively; the feeding device comprises a sliding mechanism of which a left abrasive wheel and a right abrasive wheel are arranged in the vertical direction. The error compensation method is a BP neutral network grinding machining error compensation method, and comprises the steps of automatically collecting various variable information which triggers the errors of the grinding machining, and conducting error compensation analysis with the help of a neutral network model; adopting a reverse propagation model of the neutral network and repeatedly repairing connection weight values and threshold values of the network. Due to the fact that the structure is simple, and the reliability is high, the high-precision double-faced grinding machine based on DSP control is capable of well organizing and coordinating various kinds of error influence factors, and high in error compensation accuracy; meanwhile, the accuracy requirement of processing and grinding two processing surfaces through a metal piece can be guaranteed at the same time.
Description
Technical field
The present invention relates to metalwork processes technical field, more particularly to a kind of high accuracy based on DSP controls is two-sided
Grinding machine and its error compensating method.
Background technology
At present whole world lathe owning amount is about 14,000,000, and wherein grinding machine accounts for 6%.The grinding process water of one country
Putting down own Jing becomes the important indicator for weighing state's machine-building level.With the progress in epoch, the fast development of science and technology, number
The effect that control lathe process is played in economic development is increasingly projected.The survival of the fittest particularly in market mechanism turns with society
During the adjustment of type structure, due to the increase of interests, people are enhanced during using lathe process to lathe process
The concern and attention of precision controlling, the precision for making people's logarithm control lathe process is put forward higher requirement.
During lathe process, it is to ensure the pass of processing part quality and product quality strictly to control machining accuracy
Key, while being also to improve market competitiveness of enterprises, establishes the important means of good corporate image.Either common lathe adds
Work, or present Digit Control Machine Tool processing, the precision controlling work in process is all requisite.
The Chinese invention patent of Patent No. ZL201310695750.0 discloses a kind of " car clutch face sheet numerical control pair
Face grinding machine ", including frame, double-sided grinding device, film feeding apparatus, dust arrester, it is characterised in that described double-sided grinding device
Including left emery wheel, right emery wheel, driven by emery wheel motor respectively；Described film feeding apparatus include being hung down with left emery wheel, right emery wheel
Be directly longitudinally disposed the first cylinder or straight line module, the sliding shoe that promoted by the first cylinder or straight line module, sliding shoe is along vertical
To the slide for arranging, sliding shoe is provided with the hook mandrel that dress hangs car clutch face sheet；Automatic clutch is additionally provided with frame
Device piece longitudinal feeding device, grinding automatic control device, car clutch face sheet thickness detection apparatus.Car clutch face sheet is thick
Degree detection means includes detection platform, magnetic railings ruler, magnetic grid ruler reading head, the second cylinder, the second cylinder solenoid valve Thickness sensitivity magnetic grid
Chi circuit, programmable logic controller (PLC) is connected with the second cylinder solenoid valve, Thickness sensitivity magnetic railings ruler circuit.According to Thickness sensitivity
Information feedback control of device or so emery wheel feed servo motor etc. is automatically adjusted, and is capable of achieving to the automatic benefit of machining accuracy
Repay, the car clutch face sheet quality of grinding is not only good but also stable.
The patented technology can preferably control the grinding thichness of work piece, but uncontrollable two machined surfaces are respective
Grinding accuracy requires the phenomenon to one side skew easily occur, and clutch disc is processed as full wafer and processes, the negligible defect, and
The processing of precision hardware is higher to product items dimensional parameters required precision, then must solve the defect problem：Finished product detection
Negative feedback control grinding thichness, have ignored the error that other accidentalia are caused, and such as fixture clamps deviation, and work piece itself lacks
Fall into.And these accidental errors easily make Thickness sensitivity deviation larger, cause during second-order correction it is bigger accomplish error, cause to give up
Product rate is raised；The extra thickness detection apparatus installed cause grinder structure more complicated, and cost is higher.
Therefore, in order to improve processing precision of products, need that above-mentioned error is controlled and is compensated, patent of the present invention is ground
Study carefully a kind of error compensation mechanism of the various error factors of influence of achievable tunable, improve error compensation precision and Product processing essence
Degree.
The content of the invention
The technical problem to be solved in the present invention improves processing stability and processing while being to provide a guarantee production efficiency
A kind of two-sided grinding machine of high accuracy controlled based on DSP of precision and its error compensating method.
In order to solve above-mentioned technical problem, the technical scheme is that：
A kind of two-sided grinding machine of high accuracy controlled based on DSP, including：Frame, double-sided grinding device, feed arrangement,
Dust arrester, cooling device, discharge frame, feeding slide rail and grinding automatic control device；Described double-sided grinding device includes a left side
Emery wheel, right emery wheel, are driven respectively by emery wheel motor；Described feed arrangement is included in the cunning arranged on vertical longitudinal direction
Motivation structure；Described grinding automatic control device connects feed arrangement and is also embedded with error compensation system.
Multiple temperature sensors and displacement transducer are provided with grinding machine.
The slide mechanism is driven by oil pressure pump and is moved up and down, and slide mechanism is provided with fixture, for clamping work piece.
The grinding automatic control device is DSP programmable logic controller (PLC)s.
The grinding automatic control device connects respectively left and right emery wheel, controls activate switch, rotating speed, the space bit of emery wheel
Put.
The grinding automatic control device connects feed arrangement, controls charging rate, clamp switch, the feeding of feed arrangement
Speed.
A kind of error compensating method of the two-sided grinding machine of high accuracy controlled based on DSP, it is characterised in that error compensation
Method is BP neural network grinding error compensating method.
The BP neural network grinding error compensating method meeting automatic data collection causes multiple changes of grinding error
Amount information, including emery wheel displacement signal, work piece position signalling, temperature signal, amount of feed, feeding rate, the speed of mainshaft
Grinding parameter, by neural network model, carries out Error Analysis, then the error compensating signal that networking exports is sent to mill
Bed DSP control system, controller guiding grinding machine carries out corresponding compensation campaign, so as to the Real-time Error for completing grinding is mended
Repay.
The BP neural network grinding error compensating method has very strong independent learning ability, by neutral net
Back propagation model, the connection weight and threshold value of corrective networks repeatedly improve analytical performance to realize, reduce prediction and miss
Difference so that the compensation output result of network model levels off to desired value.
Using above-mentioned technical proposal, due to simple structure, reliability is high, can well organize and coordinate various errors impacts
The factor, error compensation high precision can simultaneously ensure the required precision of metalwork processing two machined surfaces of grinding.
Description of the drawings
Fig. 1 is a kind of workflow diagram of the error compensating method of the two-sided grinding machine of high accuracy controlled based on DSP.
Specific embodiment
The specific embodiment of the present invention is described further below in conjunction with the accompanying drawings.Here it should be noted that for
The explanation of these embodiments is used to help understand the present invention, but does not constitute limitation of the invention.Additionally, disclosed below
As long as the present invention each embodiment in involved technical characteristic do not constitute conflict each other and just can be mutually combined.
Embodiment
A kind of two-sided grinding machine of high accuracy controlled based on DSP, including：Frame, double-sided grinding device, feed arrangement,
Dust arrester, cooling device, discharge frame, feeding slide rail and grinding automatic control device；Described double-sided grinding device includes a left side
Emery wheel, right emery wheel, are driven respectively by emery wheel motor；Described feed arrangement is included in the cunning arranged on vertical longitudinal direction
Motivation structure；Described grinding automatic control device connects feed arrangement and is also embedded with error compensation system.
Multiple temperature sensors and displacement transducer are provided with grinding machine.
The slide mechanism is driven by oil pressure pump and is moved up and down, and slide mechanism is provided with fixture, for clamping work piece.
The grinding automatic control device is DSP programmable logic controller (PLC)s.
The grinding automatic control device connects respectively left and right emery wheel, controls activate switch, rotating speed, the space bit of emery wheel
Put.
The grinding automatic control device connects feed arrangement, controls charging rate, clamp switch, the feeding of feed arrangement
Speed.
A kind of error compensating method of the two-sided grinding machine of high accuracy controlled based on DSP, it is characterised in that error compensation
Method is BP neural network grinding error compensating method.
The BP neural network grinding error compensating method meeting automatic data collection causes multiple changes of grinding error
Amount information, including emery wheel displacement signal, work piece position signalling, temperature signal, amount of feed, feeding rate, the speed of mainshaft
Grinding parameter, by neural network model, carries out Error Analysis, then the error compensating signal that networking exports is sent to mill
Bed DSP control system, controller guiding grinding machine carries out corresponding compensation campaign, so as to the Real-time Error for completing grinding is mended
Repay.
The BP neural network grinding error compensating method has very strong independent learning ability, by neutral net
Back propagation model, the connection weight and threshold value of corrective networks repeatedly improve analytical performance to realize, reduce prediction and miss
Difference so that the compensation output result of network model levels off to desired value.
Embodiments of the present invention are explained in detail above in association with accompanying drawing, but the invention is not restricted to described enforcement
Mode.For a person skilled in the art, in the case of without departing from the principle of the invention and spirit, to these embodiments
Various changes, modification, replacement and modification are carried out, is still fallen within protection scope of the present invention.
Claims (9)
1. it is a kind of based on DSP control the two-sided grinding machine of high accuracy, it is characterised in that include：Frame, double-sided grinding device,
Feed arrangement, dust arrester, cooling device, discharge frame, feeding slide rail and grinding automatic control device；
Described double-sided grinding device includes left emery wheel, the right emery wheel for being driven by emery wheel motor respectively；
Described feed arrangement is included in the slide mechanism arranged on vertical longitudinal direction；
Described grinding automatic control device connects feed arrangement and is also embedded with error compensation system.
2. it is according to claim 1 it is a kind of based on DSP control the two-sided grinding machine of high accuracy, it is characterised in that mill
Bed is provided with multiple temperature sensors and displacement transducer.
3. it is according to claim 1 it is a kind of based on DSP control the two-sided grinding machine of high accuracy, it is characterised in that it is described
Slide mechanism is driven by oil pressure pump and is moved up and down, and slide mechanism is provided with fixture, for clamping work piece.
4. it is according to claim 1 it is a kind of based on DSP control the two-sided grinding machine of high accuracy, it is characterised in that it is described
Grinding automatic control device is DSP programmable logic controller (PLC)s.
5. it is according to claim 1 it is a kind of based on DSP control the two-sided grinding machine of high accuracy, it is characterised in that it is described
Grinding automatic control device connects respectively left and right emery wheel, controls activate switch, rotating speed, the locus of emery wheel.
6. it is according to claim 1 it is a kind of based on DSP control the two-sided grinding machine of high accuracy, it is characterised in that it is described
Grinding automatic control device controls charging rate, clamp switch, the feed speed of feed arrangement.
7. a kind of error compensating method of the two-sided grinding machine of high accuracy controlled based on DSP, it is characterised in that the error is mended
Compensation method is BP neural network grinding error compensating method.
8. it is according to claim 7 it is a kind of based on DSP control the two-sided grinding machine of high accuracy error compensating method, its
It is characterised by, the BP neural network grinding error compensating method meeting automatic data collection causes multiple changes of grinding error
Amount information, including emery wheel displacement signal, work piece position signalling, temperature signal, amount of feed, feeding rate, the speed of mainshaft
Grinding parameter, by neural network model, carries out Error Analysis, then the error compensating signal that networking exports is sent to mill
Bed DSP control system, controller guiding grinding machine carries out corresponding compensation campaign, so as to the Real-time Error for completing grinding is mended
Repay.
9. it is according to claim 7 it is a kind of based on DSP control the two-sided grinding machine of high accuracy error compensating method, its
It is characterised by, the BP neural network grinding error compensating method is repaiied repeatedly by the back propagation model of neutral net
The connection weight and threshold value of positive network, analytical performance is improved to realize, reduces predicated error so that the compensation of network model
Output result levels off to desired value.
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107598719A (en) * | 2017-10-18 | 2018-01-19 | 中国水利水电第十工程局有限公司 | Five-axle linkage precision grinder with compensation system |
| CN107639533A (en) * | 2017-10-18 | 2018-01-30 | 中国水利水电第十工程局有限公司 | the precision compensation method of precision grinder |
| CN111352387A (en) * | 2018-12-24 | 2020-06-30 | 中国科学院沈阳计算技术研究所有限公司 | Intelligent compensation method for realizing nonlinear error of numerical control machine tool |
| CN113681469A (en) * | 2021-10-22 | 2021-11-23 | 南通豪派金属制品有限公司 | Intelligent control method and system for polishing equipment |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107598719A (en) * | 2017-10-18 | 2018-01-19 | 中国水利水电第十工程局有限公司 | Five-axle linkage precision grinder with compensation system |
| CN107639533A (en) * | 2017-10-18 | 2018-01-30 | 中国水利水电第十工程局有限公司 | the precision compensation method of precision grinder |
| CN111352387A (en) * | 2018-12-24 | 2020-06-30 | 中国科学院沈阳计算技术研究所有限公司 | Intelligent compensation method for realizing nonlinear error of numerical control machine tool |
| CN113681469A (en) * | 2021-10-22 | 2021-11-23 | 南通豪派金属制品有限公司 | Intelligent control method and system for polishing equipment |
| CN113681469B (en) * | 2021-10-22 | 2022-03-11 | 南通豪派金属制品有限公司 | Intelligent control method and system for polishing equipment |
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