CN105479299A - Feeding system and method of steel rail profile modeling grinder - Google Patents
Feeding system and method of steel rail profile modeling grinder Download PDFInfo
- Publication number
- CN105479299A CN105479299A CN201510912770.8A CN201510912770A CN105479299A CN 105479299 A CN105479299 A CN 105479299A CN 201510912770 A CN201510912770 A CN 201510912770A CN 105479299 A CN105479299 A CN 105479299A
- Authority
- CN
- China
- Prior art keywords
- module
- grinding wheel
- abrasive grinding
- control module
- sampling
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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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
- B24B19/00—Single-purpose machines or devices for particular grinding operations not covered by any other main group
- B24B19/004—Single-purpose machines or devices for particular grinding operations not covered by any other main group for grinding rails, T, I, H or other similar profiles
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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
- B24B47/00—Drives or gearings; Equipment therefor
- B24B47/10—Drives or gearings; Equipment therefor for rotating or reciprocating working-spindles carrying grinding wheels or workpieces
- B24B47/12—Drives or gearings; Equipment therefor for rotating or reciprocating working-spindles carrying grinding wheels or workpieces by mechanical gearing or electric power
-
- 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
- B24B47/00—Drives or gearings; Equipment therefor
- B24B47/20—Drives or gearings; Equipment therefor relating to feed movement
-
- 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
Abstract
The invention discloses a feeding system and method of a steel rail profile modeling grinder. The feeding system grinds steel rails by controlling the feeding displacement amount of a grinding wheel and comprises a power source module, a control module, a driving module, a sampling module and a display operation module, wherein the power source module is used for receiving externally supplied alternating voltage and supplying direct voltage to the driving module, the display operation module, the control module and the sampling module; the power source module is connected to the driving module, the control module and the sampling module; the driving module is used for providing mechanical power for the feeding movement of the grinding wheel; the driving module is connected to the sampling module, the power source module and the control module; the sampling module is used for obtaining the movement state of a direct current motor by sampling the direct current motor of the driving module; the sampling module is connected to the driving module, the power source module and the control module; and the control module is used for controlling the feeding amount of the grinding wheel through the driving module.
Description
Technical field
The present invention relates to railway track maintenance technology field, particularly relate to a kind of steel rail copying polisher feeding system and method.
Background technology
As everyone knows, steel rail copying polisher is mainly used in railway track and safeguards in construction, and Welded Joints, calendering burr, rail level repairing etc. carry out shaping polishing operation.In steel rail grinding operation process, need to adopt different grinding angles and the different amount of feeding to one section of rail, carry out round grinding, to realize reduction rail head of rail curved surface standard shape, thus ensure railway track safe operation.
Along with the development of current rail technology and the lifting of locomotive running speed, require more and more higher to the glacing flatness of Rail Surface and the registration of rail head cross-section curve and benchmark rail shape, this just requires that the homework precision safeguarding polishing device improves constantly, to meet the maintenance construction technical requirement of rail track.Existing similar steel rail copying polisher feed system, usually proximity switch is utilized to gather the movement state information of feeding drive mechanism middle sprocket, as the duty of analog signal supply control system identification emery wheel feed mechanism, because of the direction of motion of this sample of signal mode None-identified feed mechanism, and the resolution ratio of control system to feed mechanism motion state is low.Thus exist cannot show feed mechanism kinematic parameter comprehensively, be unfavorable for the control of operating personnel to polishing job state; The defects such as polishing precision regulation and control difficulty.
Summary of the invention
Object of the present invention is just to provide a kind of steel rail copying polisher emery wheel feed system, to solve problem sander feed mechanism moving state identification ability and polishing precision being regulated and controled to difficulty that prior art exists.
For achieving the above object, the present invention is by the following technical solutions:
A kind of feed system of steel rail copying polisher, feed system is by carrying out rail grinding to the control of abrasive grinding wheel feeding displacement, feed system comprises power module, control module, driver module and sampling module, power module receives the outside alternating voltage provided, and supplies DC voltage to driver module, control module, sampling module and display operational module; Power module is connected with display operational module with driver module, control module, sampling module respectively; The feed motion that driver module is abrasive grinding wheel provides machine power, and driver module is connected with control module with sampling module, power module respectively; Sampling module by sampling the direct current generator of driver module, and then obtains the motion state of direct current generator, and sampling module is connected with control module with driver module, power module respectively; Control module is used for the amount of feeding being controlled abrasive grinding wheel by driver module, and system also comprises display operational module, and display operational module is connected with control module, power module.Display operational module comprises display unit and operating unit, and display unit is all connected with control module with operating unit.
Display unit is lattice type LCD display, and operating unit comprises start key, mode key, arranges key, power switch and feed operating key.
Driver module comprises direct current generator and motor-drive circuit, and direct current generator provides machine power for abrasive grinding wheel feed motion, and direct current generator is connected with control module by motor-drive circuit.
Sampling module comprises encoder and pulse shaper;
Encoder is connected with the rotor of the direct current generator in driver module, by sampling the rotor motion of direct current generator, generates sampled signal;
Pulse shaper processes sampled signal and sends to control module;
Encoder is connected with control module by pulse shaper.
Encoder is doubleway output magnetism encoder, the direction of rotation of the rotor of doubleway output magnetism encoder identifiable design direct current generator.
Control module receives the signal of operating unit, controls driver module and drives abrasive grinding wheel, and receive the sampled signal after the process of sampling module transmission.
Power module comprises rectification circuit, filter regulator circuit, power supply compensating circuit, DC/DC converter and external power supply port, rectification circuit input end is connected with AC power, rectification circuit output end is connected with filter regulator circuit input, filter regulator circuit input is connected with external power supply port, filter regulator circuit output is connected with the input of power supply compensating circuit, the output of power supply compensating circuit is connected with the power input of motor-drive circuit with DC/DC converter, DC/DC converter output end and control module, driver module, sampling module, the power input of display operational module is connected.
Power supply compensating circuit comprises unidirectional buffer circuit and battery, and unidirectional buffer circuit input is connected with filter regulator circuit output, and unidirectional buffer circuit output is connected with battery positive voltage.
Control module is single-chip microcomputer, and single-chip microcomputer is integrated with timing circuit.
Embodiments of the invention additionally provide a kind of steel rail copying polisher and feed control method, said method comprising the steps of:
Arrange the positioning reference plane of abrasive grinding wheel feeding, described positioning reference plane can be the optional position of abrasive grinding wheel working surface on feed motion track;
Arrange the work pattern of abrasive grinding wheel, described work pattern can be restricted mode or non-restricted mode; Abrasive grinding wheel feed motion is in positioning reference plane place restricted mode or non-restricted mode;
Arrange the single feeding displacement of abrasive grinding wheel, it is the single depth of cut that abrasive grinding wheel is ground object relatively that described abrasive grinding wheel single enters displacement;
The activity duration of record abrasive grinding wheel.
The present invention feeds back the duty of abrasive grinding wheel and the mode it shown with the form of numbers and symbols at display unit by arranging sampling module, makes operator can follow the trail of machine operation conditions more intuitively.Meanwhile, the present invention possesses the feature realizing point control, improves its control accuracy.
Accompanying drawing explanation
Fig. 1 is the structured flowchart of a kind of steel rail copying polisher feed control system embodiment provided by the invention.
Fig. 2 is the power filter mu balanced circuit schematic diagram in the power module of a kind of steel rail copying polisher feed control system embodiment provided by the invention.
Fig. 3 is the power supply compensating circuit schematic diagram in the power module of a kind of steel rail copying polisher feed control system embodiment provided by the invention.
Fig. 4 is the pulse shaper schematic diagram in the sampling module of a kind of steel rail copying polisher feed control system embodiment provided by the invention.
Detailed description of the invention
Below in conjunction with the accompanying drawing in the embodiment of the present invention, be clearly and completely described the technical scheme in the embodiment of the present invention, obviously, described embodiment is only the embodiment of a part of the present invention, instead of whole embodiments.Based on the embodiment in the present invention, the every other embodiment that those of ordinary skill in the art obtain under the prerequisite not making creative work, all belongs to the scope of protection of the invention.
embodiment 1
A kind of steel rail copying polisher Feed Motion Control embodiment of the method provided by the invention, controlling by controlling abrasive grinding wheel feed motion precision of polishing, improving operating efficiency, avoiding construction accident.The described method provided comprises the following steps:
Arrange the positioning reference plane of abrasive grinding wheel feeding, described positioning reference plane can be the optional position of abrasive grinding wheel working surface on feed motion track;
Arrange the work pattern of abrasive grinding wheel, described work pattern can be restricted mode or non-restricted mode; Abrasive grinding wheel feed motion is in positioning reference plane place restricted mode or non-restricted mode;
Arrange the single feeding displacement of abrasive grinding wheel, it is the single depth of cut that abrasive grinding wheel is ground object relatively that described abrasive grinding wheel single enters displacement;
The activity duration of record abrasive grinding wheel.
Wherein, work out control program by Systematical control requirement and write single-chip microcomputer, by the operation of the respective element to display operational module, carrying out the positioning reference plane of abrasive grinding wheel; The work pattern of abrasive grinding wheel; After the arranging of abrasive grinding wheel single feeding displacement, operation emery wheel ascending, descending button, feeding system carries out grinding operation by according to given programme-control abrasive grinding wheel.Meanwhile, as the direction of the display display abrasive grinding wheel feeding of human-computer interaction interface, relative shift, single feeding displacement and this activity duration of equipment and accumulative activity duration.
Every controlling functions arrange and the effect of display grinding operation parameter in construction as follows:
The setting of abrasive grinding wheel positioning reference plane, determines the relative displacement mete-wand of abrasive grinding wheel feed motion, and abrasive grinding wheel positioning reference plane can be set as any point of wheel grinding surface on feed motion track.By to the setting of abrasive grinding wheel positioning reference plane with in the display of human-computer interaction interface to abrasive grinding wheel this positioning reference plane displacement relative, operating personnel can grasp the locus residing for abrasive grinding wheel immediately, the convenient manipulation to grinding operation.
The setting of abrasive grinding wheel work pattern, can make the feed motion of abrasive grinding wheel on positioning reference plane, be in limited or not limited two states.Be abrasive grinding wheel positioning reference plane when arranging standard steel track surface, when work pattern is set to restricted mode, when wheel grinding surface is fed to positioning reference plane, feed motion is by controlled stopping, thus ensure that wheel grinding goes out the rail head of rail curved surface of standard, avoid what is called " excessive polishing " work accident and occur.This work pattern is especially applicable to the polishing operation after track bond weld seam and rail level fatigue pitting soldering.And for carry out rail head side of rail calendering burr or rail level calendering distortion wave reconditioning time, then need to roll the crest place of burr summit or calendering wave for abrasive grinding wheel positioning reference plane, work pattern is set to untethered pattern, control abrasive grinding wheel relative shift to calendering burr height or crest height of wave angle value, precisely can complete polishing operation.
The setting of the abrasive grinding wheel single amount of feeding, convenient operation personnel can carry out the conversion of " corase grind " or " fine grinding " operating type in work progress, avoids the grinding heat burn molded surface produced because of full depth amount in the grinding stage of ending.The abrasive grinding wheel single amount of feeding can set at random in grinding operation process.According to job behavior and homework precision requirement, the single amount of feeding adjusting range of abrasive grinding wheel is 0.1mm to 0.5mm, and Adjustment precision is 0.1mm.
Feeding system is to the record of construction operation time and in human-computer interaction interface display, and handled easily personnel, to the control of activity duration, are conducive in construction and road at present in rail track interval running time of regulation, avoid the generation of construction accident.Meanwhile, the service time of accurate recording equipment, construction equipment is safeguarded for irregular governed rail track service time, is more conducive to later maintenance and the management of equipment.
embodiment 2
A kind of steel rail copying polisher feed system embodiment provided by the invention, as shown in Figure 1, comprise a kind of feed system of steel rail copying polisher, feed system is by carrying out rail grinding to the control of abrasive grinding wheel feeding displacement, feed system comprises power module, control module, driver module, sampling module and display operational module, power module receives the outside alternating voltage provided, and supply DC voltage to driver module, control module, sampling module and display operational module, power module respectively with driver module, control module, sampling module is connected with display operational module, the feed motion that driver module is abrasive grinding wheel provides machine power, and driver module is connected with control module with sampling module, power module respectively, sampling module by sampling the direct current generator of driver module, and then obtains the motion state of direct current generator, and sampling module is connected with control module with driver module, power module respectively, control module is used for the amount of feeding being controlled abrasive grinding wheel by driver module, display operational module is connected with control module, display operational module comprises display unit and operating unit, and display unit is all connected with control module with operating unit.
Display unit is lattice type LCD display, and operating unit comprises start key, mode key, arranges key, power switch and feed operating key.
Driver module comprises direct current generator and motor-drive circuit, and direct current generator provides machine power for abrasive grinding wheel feed motion, and direct current generator is connected with control module by motor-drive circuit.
As shown in Figure 4, sampling module comprises encoder and pulse shaper; Encoder is connected with the rotor of the direct current generator in driver module, by sampling the rotor motion of direct current generator, generates sampled signal; Pulse shaper processes sampled signal and sends to control module; Encoder is connected with control module by pulse shaper.
Encoder is doubleway output magnetism encoder, the direction of rotation of the rotor of doubleway output magnetism encoder identifiable design direct current generator.
Control module receives the signal of operating unit, controls driver module and drives abrasive grinding wheel, and receive the sampled signal after the process of sampling module transmission.
Power module comprises rectification circuit, filter regulator circuit, power supply compensating circuit, DC/DC converter and external power supply port, rectification circuit input end is connected with AC power, rectification circuit output end is connected with filter regulator circuit input, filter regulator circuit input is connected with external power supply port, filter regulator circuit output is connected with the input of power supply compensating circuit, the output of power supply compensating circuit is connected with the input of motor-drive circuit with DC/DC converter, DC/DC converter output end and control module, driver module, sampling module, the power input of display operational module is connected.
Power supply compensating circuit comprises unidirectional buffer circuit and battery, and unidirectional buffer circuit input is connected with filter regulator circuit output, and unidirectional buffer circuit output is connected with battery positive voltage.
Control module is single-chip microcomputer, and single-chip microcomputer is integrated with timing circuit.
Described AC power is produced by the power set of steel rail copying polisher, described power set are gasoline engine, gasoline engine drives alternating current generator to produce alternating voltage, alternator rotor rotating speed and gasoline engine power output shaft synchronization, owing to needing to operate under different work rotating speed after gasoline engine starting, the AC electromotive force that alternating current generator produces when doing cutting magnetic line movement also will change thereupon.Namely when gasoline engine running is too fast, the voltage that alternating current generator exports is also higher, and when gasoline engine running is slower, the voltage that alternating current generator exports is also lower.When alternator output voltage undulate quantity exceeds mu balanced circuit input limited range value, filter regulator circuit cannot normally work, its output voltage there will be larger fluctuation, thus cause control module, sampling module logical operation display unit that is disorderly and display operational module runs not normal.In order to overcome this defect, the present invention adds power supply compensating circuit on original power module, when producing higher voltage because gasoline engine running is too fast, too much electricity is charge in batteries, when producing lower voltage when operating because of gasoline engine slowly, battery is that load circuit is powered, and the increase of power supply compensating circuit efficiently solves because petrol engine rotational speed changes the feeding system operating voltage instability problem caused.
Described power supply compensating circuit as shown in Figure 3, also comprises unidirectional buffer circuit and battery, and unidirectional buffer circuit input is connected with filter regulator circuit output, and unidirectional buffer circuit output is connected with battery positive voltage and DC/DC switch input.The setting of unidirectional buffer circuit, to charge in batteries when not only ensure that alternating current generator output HIGH voltage, and when alternating current generator output LOW voltage, avoid battery and oppositely export to filter regulator circuit, ensure that battery provides stable voltage to load.
Described control module is single-chip microcomputer, and single-chip microcomputer is integrated with timing circuit.When the normal rail track run carries out upkeep operation, the activity duration needs strict control.The engineering time that operating personnel grasps sander operation is at any time convenient in the design of timing circuit, to the security improving construction operation, there is constructive meaning, further, the actual job time of accurate recording steel rail copying polisher is also that later maintenance and the management of equipment provides conveniently.
Described display operational module comprises display unit and operating unit, and operating unit comprises start key, mode key, arranges key, power switch and action button, and display unit is all connected with control module with operating unit.The human-computer interaction interface of display unit adopts lattice type LCD display, can provide more abrasive grinding wheel job status information parameter for operating personnel.Human-computer interaction interface of the present invention can make operating personnel understand the work pattern of feed mechanism, single feeding displacement value, the locus of abrasive grinding wheel, direction of displacement, activity duration, facilitates the job state that operating personnel control rail grinding machine at any time.
The present invention obtains the information of DC motor rotor motion state by encoder, passes to control module through pulse shaper to after sampled signal waveform processing.Control module identifies according to the running status of this information to direct current generator and controls, gather compared with sampled signal with prior art by proximity switch, the sampling pulse quantity adopting DC motor rotor connection coder mode to gather in same time is 50 times of proximity switch, thus make the resolution ratio of control module to direct current generator rotation status improve 50 times, and the revolution of direct current generator is directly proportional to abrasive grinding wheel feeding displacement, therefore, adopt encoder to gather sampled signal, the control accuracy to rail head of rail curve surface grinding amount can be increased substantially.And, adopt doubleway output magnetism encoder to the sampling of direct current generator motion state, can make the direction of rotation of control module identification direct current generator, the direction of feed motion due to abrasive grinding wheel is controlled by direct current generator direction of rotation, therefore, the control to abrasive grinding wheel feed motion attitude can be realized.
In order to meet succinct requirement, what each some importance of this description illustrated is the difference with other parts, and between various piece, identical similar portion can cross-reference.To the above-mentioned explanation of the disclosed embodiments, professional and technical personnel in the field are realized or uses the present invention.
The encoder do not shown in embodiments of the present invention, display unit, operating unit, control module and motor-drive circuit are prior art.
Claims (10)
1. the feed system of a steel rail copying polisher, described feed system is by carrying out rail grinding to the control of abrasive grinding wheel feeding displacement, described feed system comprises power module, control module, driver module, sampling module and display operational module, it is characterized in that:
Described power module receives the outside alternating voltage provided, and supplies DC voltage and be connected with display operational module to driver module, control module, sampling module; Power module is connected with display operational module with driver module, control module, sampling module respectively;
The feed motion that described driver module is abrasive grinding wheel provides machine power, and described driver module is connected with control module with sampling module, power module respectively;
Described sampling module by sampling the direct current generator of driver module, and then obtains the motion state of direct current generator, and described sampling module is connected with control module with driver module, power module respectively;
Described control module is used for the amount of feeding being controlled abrasive grinding wheel by driver module;
Described display operational module is connected with control module; Described display operational module comprises display unit and operating unit, and display unit is all connected with control module with operating unit.
2. feed system according to claim 1, is characterized in that: described display unit is lattice type LCD display, and described operating unit comprises start key, mode key, arranges key, power switch and feed operating key.
3. feed system according to claim 2, is characterized in that: described driver module comprises direct current generator and motor-drive circuit, and direct current generator provides machine power for abrasive grinding wheel feed motion, and direct current generator is connected with control module by motor-drive circuit.
4. feed system according to claim 3, is characterized in that:
Described sampling module comprises encoder and pulse shaper;
Described encoder is connected with the rotor of the direct current generator in driver module, by sampling the rotor motion of direct current generator, generates sampled signal;
Described pulse shaper processes described sampled signal and sends to control module;
Encoder is connected with control module by pulse shaper.
5. feed system according to claim 4, is characterized in that: described encoder is doubleway output magnetism encoder, the direction of rotation of the rotor of described doubleway output magnetism encoder identifiable design direct current generator.
6. feed system according to claim 4, is characterized in that: described control module receives the signal of described operating unit, controls driver module and drives abrasive grinding wheel, and receive the sampled signal after the process of sampling module transmission.
7. feed system according to claim 1, it is characterized in that: described power module comprises rectification circuit, filter regulator circuit, power supply compensating circuit, DC/DC converter and external power supply port, rectification circuit input end is connected with AC power, rectification circuit output end is connected with filter regulator circuit input, filter regulator circuit input is connected with external power supply port, filter regulator circuit output is connected with the input of power supply compensating circuit, the output of power supply compensating circuit is connected with the power input of motor-drive circuit with DC/DC converter, DC/DC converter output end and control module, driver module, sampling module, the power input of display operational module is connected.
8. feed system according to claim 7, it is characterized in that: described power supply compensating circuit comprises unidirectional buffer circuit and battery, unidirectional buffer circuit input is connected with filter regulator circuit output, and unidirectional buffer circuit output is connected with battery positive voltage.
9. feed system according to claim 6, is characterized in that: described control module is single-chip microcomputer, and described single-chip microcomputer is integrated with timing circuit.
10. steel rail copying polisher feeds a control method, it is characterized in that, said method comprising the steps of:
Arrange the positioning reference plane of abrasive grinding wheel feeding, described positioning reference plane can be the optional position of abrasive grinding wheel working surface on feed motion track;
Arrange the work pattern of abrasive grinding wheel, described work pattern can be restricted mode or non-restricted mode; Abrasive grinding wheel feed motion is in positioning reference plane place restricted mode or non-restricted mode;
Arrange the single feeding displacement of abrasive grinding wheel, it is the single depth of cut that abrasive grinding wheel is ground object relatively that described abrasive grinding wheel single enters displacement;
The activity duration of record abrasive grinding wheel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510912770.8A CN105479299A (en) | 2015-12-11 | 2015-12-11 | Feeding system and method of steel rail profile modeling grinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510912770.8A CN105479299A (en) | 2015-12-11 | 2015-12-11 | Feeding system and method of steel rail profile modeling grinder |
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| CN105479299A true CN105479299A (en) | 2016-04-13 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510912770.8A Pending CN105479299A (en) | 2015-12-11 | 2015-12-11 | Feeding system and method of steel rail profile modeling grinder |
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| CN (1) | CN105479299A (en) |
Cited By (3)
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| CN106873639A (en) * | 2017-02-22 | 2017-06-20 | 株洲时代电子技术有限公司 | A kind of steel rail grinding deflection angle control method |
| CN112578705A (en) * | 2020-12-03 | 2021-03-30 | 浙江博来工具有限公司 | PCB controller for electric tool |
| CN117428682A (en) * | 2023-12-08 | 2024-01-23 | 青岛瑰宝电子科技有限公司 | Plc controlled servo lithium battery grinding wheel polishing system |
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Cited By (4)
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| CN106873639A (en) * | 2017-02-22 | 2017-06-20 | 株洲时代电子技术有限公司 | A kind of steel rail grinding deflection angle control method |
| CN112578705A (en) * | 2020-12-03 | 2021-03-30 | 浙江博来工具有限公司 | PCB controller for electric tool |
| CN117428682A (en) * | 2023-12-08 | 2024-01-23 | 青岛瑰宝电子科技有限公司 | Plc controlled servo lithium battery grinding wheel polishing system |
| CN117428682B (en) * | 2023-12-08 | 2024-04-12 | 青岛瑰宝电子科技有限公司 | Plc controlled servo lithium battery grinding wheel polishing system |
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Application publication date: 20160413 |