CN116061064A - Grinding wheel grinding device and grinding process parameter determining method - Google Patents
Grinding wheel grinding device and grinding process parameter determining method Download PDFInfo
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- CN116061064A CN116061064A CN202310066102.2A CN202310066102A CN116061064A CN 116061064 A CN116061064 A CN 116061064A CN 202310066102 A CN202310066102 A CN 202310066102A CN 116061064 A CN116061064 A CN 116061064A
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- 238000000227 grinding Methods 0.000 title claims abstract description 436
- 238000000034 method Methods 0.000 title claims abstract description 81
- 230000008569 process Effects 0.000 title claims abstract description 68
- 239000000428 dust Substances 0.000 claims abstract description 23
- 230000007246 mechanism Effects 0.000 claims abstract description 17
- 239000002184 metal Substances 0.000 claims description 22
- 238000005498 polishing Methods 0.000 claims description 11
- 238000005070 sampling Methods 0.000 claims description 5
- 238000005286 illumination Methods 0.000 claims 1
- 238000012360 testing method Methods 0.000 description 16
- 238000001514 detection method Methods 0.000 description 12
- 238000010586 diagram Methods 0.000 description 3
- 238000000605 extraction Methods 0.000 description 3
- 238000013441 quality evaluation Methods 0.000 description 3
- 230000008859 change Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 229910000975 Carbon steel Inorganic materials 0.000 description 1
- 241001391944 Commicarpus scandens Species 0.000 description 1
- 239000011358 absorbing material Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000010962 carbon steel Substances 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 239000000779 smoke Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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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
- B24B27/00—Other grinding machines or devices
- B24B27/02—Bench grinders
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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
- B24B27/00—Other grinding machines or devices
- B24B27/0015—Hanging grinding machines
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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
- B24B41/00—Component parts such as frames, beds, carriages, headstocks
- B24B41/06—Work supports, e.g. adjustable steadies
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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
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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
- B24B47/20—Drives or gearings; Equipment therefor relating to feed movement
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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
- B24B49/00—Measuring or gauging equipment for controlling the feed movement of the grinding tool or work; Arrangements of indicating or measuring equipment, e.g. for indicating the start of the grinding operation
- B24B49/006—Measuring or gauging equipment for controlling the feed movement of the grinding tool or work; Arrangements of indicating or measuring equipment, e.g. for indicating the start of the grinding operation taking regard of the speed
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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
- B24B49/00—Measuring or gauging equipment for controlling the feed movement of the grinding tool or work; Arrangements of indicating or measuring equipment, e.g. for indicating the start of the grinding operation
- B24B49/16—Measuring or gauging equipment for controlling the feed movement of the grinding tool or work; Arrangements of indicating or measuring equipment, e.g. for indicating the start of the grinding operation taking regard of the load
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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
- B24B55/00—Safety devices for grinding or polishing machines; Accessories fitted to grinding or polishing machines for keeping tools or parts of the machine in good working condition
- B24B55/06—Dust extraction equipment on grinding or polishing machines
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Constituent Portions Of Griding Lathes, Driving, Sensing And Control (AREA)
Abstract
The invention discloses a grinding wheel grinding device and a method for determining grinding process parameters, wherein the device comprises the following steps: the grinding mechanism comprises a support frame arranged in the dust cover, an X-axis module arranged on the support frame, a Y-axis module arranged on the X-axis module, an angle control module arranged on the Y-axis module, a variable speed grinding motor and a grinding wheel driven by the variable speed grinding motor; the grinding wheel is used for grinding a designated area of the ground workpiece; the X-axis module is used for providing horizontal feeding movement of the grinding wheel in the grinding process; the Y-axis module is used for providing grinding pressure of the grinding wheel in the grinding process; the angle control module is used for setting the grinding angle of the grinding wheel in the grinding process. The automatic grinding machine can realize automatic grinding, has stable grinding result and good reproducibility, avoids subjective influence caused by manual grinding, reduces labor intensity and improves working environment.
Description
Technical Field
The invention belongs to the technical field of workpiece grinding, and particularly relates to a grinding wheel grinding device and a grinding process parameter determining method.
Background
In the engineering machinery industry, grinding is an important process in the machining process. The grinding wheel grinding scenes are many, including polishing and cleaning of the plate oxide skin, polishing of the plate weld seam surplus height, polishing in the repair process of the coating paint film, and the like. The grinding technological parameters of the grinding wheel mainly refer to the rotational speed, the grinding pressure, the feeding speed, the grinding angle and the like of the grinding wheel in the grinding process of the grinding wheel. The grinding wheel is easy to break due to the fact that the rotating speed of the grinding wheel is set too fast in the grinding parameters of the grinding wheel, and potential safety hazards are generated; the larger grinding pressure setting causes the plate roughness or the grinding amount to be too large, and the too small setting reduces the grinding efficiency. Also, the feeding speed and the grinding angle parameter are unreasonably set, and the final grinding effect is affected. Therefore, in the grinding process, the processing quality, the production rate and the cost of the product are closely related to the selection of the grinding parameters, and the selection of reasonable grinding parameters directly influences the grinding quality of the grinding wheel, so that the good grinding quality has important significance for improving the quality and the production efficiency of the engineering machinery product.
At present, most grinding quality tests of grinding wheels on the market mainly adopt manual grinding, the labor intensity is high, the working environment is bad in the manual grinding test process, the manual grinding result is greatly influenced by subjective factors, the grinding test result is mostly error and distortion, and the reproducibility and reproducibility of the result are poor. A special device for testing the grinding quality of the grinding wheel is needed to objectively evaluate the grinding quality of the grinding wheel and provide guidance for the on-site grinding process.
Disclosure of Invention
In order to solve the defects in the prior art, the invention provides the grinding wheel grinding device and the method for determining the grinding process parameters, which can realize automatic grinding, have stable grinding results and good reproducibility, avoid subjective influence caused by manual grinding, reduce labor intensity and improve working environment.
In order to achieve the above purpose, the technical scheme adopted by the invention is as follows:
in a first aspect, there is provided a grinding wheel grinding apparatus comprising: the grinding platform is provided with a sample placing table which is used for fixing a grinding workpiece; the grinding device comprises a dust cover arranged on a grinding platform, wherein a grinding mechanism is arranged in the dust cover, and comprises a support frame arranged in the dust cover, an X-axis module arranged on the support frame, a Y-axis module arranged on the X-axis module, an angle control module arranged on the Y-axis module, a variable speed grinding motor and a grinding wheel driven by the variable speed grinding motor; the grinding wheel is used for polishing a designated area of the grinding workpiece; the X-axis module is used for providing horizontal feeding movement of the grinding wheel in the grinding process; the Y-axis module is used for providing grinding pressure of the grinding wheel in the grinding process; the angle control module is used for setting the grinding angle of the grinding wheel in the grinding process.
Further, the X-axis module comprises an X-axis guide rail and an X-axis sliding block, the X-axis guide rail is mounted on the support frame, the X-axis sliding block is in sliding connection with the X-axis guide rail, and the X-axis driving module drives the X-axis sliding block to slide along the X-axis guide rail and is used for providing horizontal feeding movement of the grinding wheel in the grinding process.
Further, the Y-axis module comprises a Y-axis guide rail and a Y-axis sliding block, the Y-axis guide rail is installed on the X-axis sliding block, the Y-axis sliding block is in sliding connection with the Y-axis guide rail, a pneumatic device for driving the Y-axis sliding block to slide along the Y-axis guide rail is arranged on the Y-axis guide rail, and the variable speed polishing motor is installed on the Y-axis sliding block through an angle control module.
Further, the pneumatic device comprises an air cylinder arranged on the Y-axis guide rail, a piston rod of the air cylinder is connected with the Y-axis sliding block, and the air cylinder changes the grinding pressure of the grinding wheel in the grinding process by adjusting the position of the Y-axis sliding block on the Y-axis guide rail.
Further, the angle control module comprises a connecting shaft and an angle adjusting part, wherein the connecting shaft and the angle adjusting part are arranged on an angle indicating disc, the angle indicating disc is arranged on the Y-axis sliding block, and the angle adjusting part is used for adjusting the included angle between the connecting shaft and the Y-axis direction so as to change the grinding angle of the grinding wheel in the grinding process; the angle indicating disc is used for indicating and detecting the current included angle between the connecting shaft and the Y-axis direction, so that the current grinding angle is obtained.
Further, a lighting device is arranged in the dust cover.
Further, a sampling/lofting window is arranged on the dust cover.
Further, the grinding machine further comprises an electric control system, wherein the electric control system comprises a control cabinet arranged below the grinding platform, an electric control part is arranged in the control cabinet, and the electric control part is respectively and electrically connected with the grinding mechanism and an operation panel arranged on the control cabinet.
Further, an access window is arranged on the control cabinet.
In a second aspect, a method for determining grinding process parameters of a grinding wheel is provided, including: (a) Presetting a group of grinding process parameters for grinding a grinding workpiece through a selected grinding wheel, wherein the grinding process parameters comprise the rotating speed of the grinding wheel, the grinding pressure, the feeding speed, the grinding angle and the grinding time; (b) After finishing polishing, calculating a grinding ratio and a metal removal rate, and combining the selected parameters of the grinding wheel, the parameters of the ground workpiece, preset grinding process parameters, the grinding ratio and the metal removal rate into a first group of grinding comparison parameters; (c) Adjusting one or more parameters of the grinding process parameters, repeating the steps (a) - (b) to obtain second-nth sets of grinding control parameters, wherein n represents the total number of the obtained grinding control parameters; and comparing the first group of grinding control parameters to the nth group of grinding control parameters to obtain optimal grinding process parameters for grinding the given grinding workpiece through the selected grinding wheel.
Further, the method for determining the optimal grinding process parameters for grinding a given grinding workpiece by using the selected grinding wheel comprises the following steps: if the grinding ratio and the metal grinding rate are larger than those of other groups in a certain group of grinding control parameters, the grinding process parameters in the group of grinding control parameters are determined to be the optimal grinding process parameters for grinding a given grinding workpiece through the selected grinding wheel.
Compared with the prior art, the invention has the beneficial effects that:
(1) According to the invention, the sample placing table is arranged on the grinding platform and is used for fixing the grinding workpiece; the dust cover is arranged on the grinding platform, a grinding mechanism is arranged in the dust cover, and the grinding mechanism comprises a support frame arranged in the dust cover, an X-axis module arranged on the support frame, a Y-axis module arranged on the X-axis module, an angle control module arranged on the Y-axis module, a variable speed grinding motor and a grinding wheel driven by the variable speed grinding motor; the grinding wheel is used for grinding a designated area of the ground workpiece; the X-axis module is used for providing horizontal feeding movement of the grinding wheel in the grinding process; the Y-axis module is used for providing grinding pressure of the grinding wheel in the grinding process; the angle control module is used for setting the grinding angle of the grinding wheel in the grinding process; the automatic grinding can be realized, the grinding result is stable, the reproducibility is good, the subjective influence caused by manual grinding is avoided, the labor intensity is reduced, and the working environment is improved;
(2) According to the invention, parameters such as the grinding wheel rotating speed, the grinding pressure, the feeding speed, the grinding angle, the grinding time and the like are regulated, the multi-dimension grinding field process is fully simulated, the grinding quality of the field grinding wheel is evaluated by utilizing the grinding performance (grinding ratio and metal grinding rate) result of the grinding wheel under the extracted multi-dimension parameters, the field grinding process is guided, and the optimal grinding process parameters are provided.
Drawings
Fig. 1 is a schematic diagram of the overall structure of a grinding wheel grinding device according to an embodiment of the present invention;
FIG. 2 is a schematic diagram of the X-axis module in FIG. 1;
FIG. 3 is a schematic view of the Y-axis module in FIG. 1;
FIG. 4 is a schematic diagram of a grinding wheel grinding quality evaluation flow in an embodiment of the invention;
in the figure: 2. a dust cover; 3. a lighting device; 4. sampling/lofting window; 6. a support frame; 8. an X-axis guide rail; 9. an X-axis sliding block; 12. a cylinder; 13. a piston rod; 14. a Y-axis guide rail; 15. a Y-axis slider; 16. an angle adjusting part; 17. an angle indicating plate; 18. a connecting shaft; 19. a variable-speed polishing motor; 20. grinding wheel; 21. a grinding platform; 22. placing a sample table; 23. grinding the workpiece; 25. a control cabinet; 26. an electrical control component; 27. an operation panel; 28. and an access window.
Detailed Description
The invention is further described below with reference to the accompanying drawings. The following examples are only for more clearly illustrating the technical aspects of the present invention, and are not intended to limit the scope of the present invention.
Embodiment one:
as shown in fig. 1 to 4, the grinding wheel grinding device comprises a grinding platform 21, wherein the grinding platform 21 is arranged below a grinding mechanism and mainly comprises a sample placing table 22 and a grinding workpiece 23. The sample placing table 22 is made of electromagnetic iron-absorbing materials, the grinding workpiece 23 is made of carbon steel materials such as Q355, and the grinding workpiece 23 can be firmly adsorbed on the surface of the sample placing table 22. The dust cover 2 is arranged on the grinding platform 21, and a grinding mechanism is arranged in the dust cover 2, and comprises a support frame 6 arranged in the dust cover 2, an X-axis module arranged on the support frame 6, a Y-axis module arranged on the X-axis module, an angle control module arranged on the Y-axis module, a variable speed grinding motor 19 and a grinding wheel 20 driven by the variable speed grinding motor 19; the grinding wheel 20 is used for grinding a designated area of a grinding workpiece 23; the X-axis module is used for providing horizontal feeding movement of the grinding wheel 20 during grinding; the Y-axis module is used for providing grinding pressure of the grinding wheel 20 in the grinding process; the angle control module is used for setting the grinding angle of the grinding wheel 20 in the grinding process.
The dust cover 2 is a shell arranged outside the grinding mechanism, can play a role in shielding splashed metal scraps, dust and smoke and the like generated in the grinding test process of the grinding wheel, and has a protective effect on the personal safety of test operators. The lighting device 3 is a lighting lamp arranged at the top of the dust cover 2, and can ensure good lighting rays in the test and detection process. The sampling/lofting window 4 is a window arranged on the side face of the dust cover 2, and the grinding wheel 20 and the grinding workpiece 23 can be installed and replaced through the sampling/lofting window 4 before and after grinding detection, so that the grinding mechanism can be overhauled conveniently.
The X-axis module is a component in the horizontal direction of the grinding mechanism, and can realize the adjustment of the feeding speed of the grinding wheel 20 on the surface of the grinding workpiece 23 in the grinding detection process. The X-axis module comprises an X-axis guide rail 8 and an X-axis sliding block 9, the X-axis guide rail 8 is a sliding rail of the grinding mechanism in the horizontal direction, the X-axis sliding block 9 is inlaid in the X-axis guide rail 8 and is in sliding connection with the X-axis guide rail 8, and the X-axis sliding block 9 can horizontally reciprocate on the X-axis guide rail 8 under the driving of an X-axis driving module (a motor in the embodiment).
The support frame 6 is a support structure for connecting the X-axis module and the shell of the dust cover 2, and plays a role in supporting the grinding mechanism. The Y-axis module is a component in the vertical direction of the grinding mechanism, and can realize the position adjustment of the grinding mechanism in the vertical direction. The Y-axis module comprises a Y-axis guide rail 14 and a Y-axis sliding block 15, the Y-axis guide rail 14 is a slide rail of the grinding mechanism in the vertical direction, the Y-axis guide rail 14 is connected to the X-axis sliding block 9, and the whole Y-axis module can be driven to horizontally reciprocate through the displacement of the X-axis sliding block 9. The Y-axis sliding block 15 is embedded in the Y-axis guide rail 14 and is in sliding connection with the Y-axis guide rail 14, and the Y-axis sliding block 15 can vertically move on the Y-axis guide rail 14 under the driving of the pneumatic device.
The pneumatic device mainly comprises an air cylinder 12 and a piston rod 13, wherein the air cylinder 12 is fixed on a Y-axis guide rail 14, the piston rod 13 is a power executing component and can move in the air cylinder 12 in a telescopic mode, the piston rod 13 is connected with a Y-axis sliding block 15, compressed air in the air cylinder 12 is regulated through an electric control system, power is transmitted through the piston rod 13, and grinding pressure regulation in grinding detection can be achieved.
The Y-axis sliding block 15 is provided with an angle control module, the angle control module comprises a connecting shaft 18 and an angle adjusting part 16, the connecting shaft 18 is arranged on an angle indicating disc 17, the angle indicating disc 17 is arranged on the Y-axis sliding block 15, and the angle adjusting part 16 (an angle adjusting bolt is adopted in the embodiment) is used for adjusting the included angle between the connecting shaft 18 and the Y-axis direction so as to change the grinding angle of the grinding wheel 20 in the grinding process; the angle indicating disc 17 is used for indicating and detecting the current included angle between the connecting shaft 18 and the Y-axis direction, so as to obtain the current grinding angle.
The connecting shaft 18 is connected with a variable-speed grinding motor 19, and the variable-speed grinding motor 19 can adjust grinding time in grinding detection through electric control. The variable-speed polishing motor 19 can be adapted to the grinding wheels 20 with different specifications, the variable-speed polishing motor 19 also has a rotation speed adjusting function, and the rotation speed adjustment of the grinding wheels 20 in grinding detection can be realized.
The electrical control system mainly comprises a control cabinet 25, electrical control components 26, an operation panel 27 and an access window 28. The control cabinet 25 is disposed below the grinding table 21, and has an electric control unit 26 therein. The electrical control unit 26 may provide a controlled adjustment of the power and air pressure to the overall test device. The operation panel 27 is disposed on the front surface of the control cabinet 25, and the operation panel 27 is provided with a display screen and control buttons for operating the detection device by an operator. An access window 28 is provided on the side of the control cabinet 25 for servicing the electrical control system 24.
The comprehensive grinding quality evaluation method of the grinding wheel mainly comprises the steps of on-site grinding process parameter extraction, grinding performance detection, grinding process parameter adjustment, grinding performance detection after adjustment and grinding quality judgment. The on-site grinding process parameter extraction and grinding performance detection comprise extraction of parameters of grinding wheel rotation speed, grinding pressure, feeding speed, grinding angle and grinding time in the on-site grinding process, and the grinding performance detection comprises a grinding ratio G 1 (weight of metal ground during grinding W) M Weight ratio to grinding wheel wear W a ) Metal removal rate Z 1 (weight of metal W removed by grinding wheel) M And grinding time T M Ratio) of the test. The grinding process parameter adjustment and the grinding performance detection after adjustment comprise the steps of adjusting one or more parameters of the rotation speed, the grinding pressure, the feeding speed, the grinding angle and the grinding time parameter of the grinding wheel, and then using the adjusted parameters to detect the grinding performance (the grinding ratio G 2 Metal removal rate Z 2 ). The grinding quality judgment of the grinding wheel comprises the steps of respectively comparing the grinding ratio G before and after the adjustment of the grinding parameters and the metal grinding rate Z, and the grinding ratio G before the adjustment 1 Metal removal rate Z 1 Are all larger than the adjusted grinding ratio G 2 Metal removal rate Z 2 The grinding quality under the original grinding process parameters is considered to be excellent.
Specific examples:
cymbal grinding wheel (d=125 mm) for workshop weld grinding, grinding quality evaluation at the existing grinding angle.
Step one: cymbal type grinding wheel (D=125mm) grinding technological parameters in the workshop welding seam grinding process are extracted, and the cymbal type grinding wheel grinding technological parameters are determined to be 5 minutes in grinding time, 38N in grinding pressure, 10000r/min in grinding wheel rotating speed, 30% in grinding angle and 10m/min in feeding speed.
Step two: the cymbal type grinding wheel (D=125mm) is installed on a variable-speed grinding motor, a connecting shaft of the grinding motor is adjusted to 30 degrees by utilizing an angle indicating disc, and a Q355 grinding workpiece is fixed on an electromagnetic magnet sample placing table. The test operator can set the grinding time to be 5min, the grinding pressure to be 38N, the grinding wheel rotating speed to be 10000r/min and the feeding speed to be 10m/min on the operation panel to carry out grinding test. After the grinding test was completed, the grinding ratio G was calculated to be 7.74, and the metal removal rate Z was calculated to be 17.54G/min.
Step three: the new cymbal grinding wheel (d=125mm) is replaced, the grinding motor connecting shaft is adjusted to 60 degrees, the grinding time is set on the operation panel by test operators to be 5min, the grinding pressure is 38N, the grinding wheel rotating speed is 10000r/min, and the feeding speed is 10m/min, and the grinding test is performed again. After the grinding test was completed, the grinding ratio G was calculated to be 5.95, and the metal removal rate Z was calculated to be 13.79G/min.
Step four: test results comparing grinding angles of 30 ° and 60 °: the grinding ratio G at the grinding angle of 30 degrees is 7.74 and is larger than the grinding ratio G at the grinding angle of 60 degrees and is 5.95; the metal removal rate Z at the grinding angle of 30 degrees is 17.54g/min and is 13.79g/min which is larger than the metal removal rate Z at the grinding angle of 60 degrees. The original grinding angle of 30 degrees can be judged as a reasonable parameter.
Embodiment two:
based on the grinding wheel grinding device according to the first embodiment, the present embodiment provides a method for determining grinding wheel grinding process parameters, including:
(a) Presetting a group of grinding process parameters for grinding a grinding workpiece 23 through a selected grinding wheel 20, wherein the grinding process parameters comprise a grinding wheel rotating speed, a grinding pressure, a feeding speed, a grinding angle and a grinding time;
(b) After finishing polishing, calculating a grinding ratio and a metal removal rate, and combining the selected parameters of the grinding wheel 20, the parameters of the ground workpiece 23, preset grinding process parameters, the grinding ratio and the metal removal rate into a first group of grinding comparison parameters;
(c) Adjusting one or more parameters of the grinding process parameters, repeating the steps (a) - (b) to obtain second-nth sets of grinding control parameters, wherein n represents the total number of the obtained grinding control parameters; the first through n-th sets of grinding control parameters are compared to obtain optimal grinding process parameters for grinding a given ground workpiece 23 by the selected grinding wheel 20.
The method for determining the optimal grinding process parameters for grinding a given ground workpiece 23 by means of the selected grinding wheel 20 comprises: if the grinding ratio and the metal removal rate are greater than those of the other sets of grinding control parameters, the grinding process parameters in the set of grinding control parameters are determined to be the optimal grinding process parameters for grinding a given ground workpiece 23 by the selected grinding wheel 20.
The foregoing is merely a preferred embodiment of the present invention, and it should be noted that modifications and variations could be made by those skilled in the art without departing from the technical principles of the present invention, and such modifications and variations should also be regarded as being within the scope of the invention.
Claims (11)
1. A grinding wheel grinding apparatus, comprising:
a sample placing table (22) is arranged on the grinding platform (21), and the sample placing table (22) is used for fixing a grinding workpiece (23);
a dust cover (2) mounted on the grinding platform (21), wherein a grinding mechanism is mounted in the dust cover (2), and comprises a support frame (6) mounted in the dust cover (2), an X-axis module mounted on the support frame (6), a Y-axis module mounted on the X-axis module, an angle control module mounted on the Y-axis module, a variable speed grinding motor (19) and a grinding wheel (20) driven by the variable speed grinding motor (19);
the grinding wheel (20) is used for grinding a designated area of the grinding workpiece (23);
the X-axis module is used for providing horizontal feeding movement of the grinding wheel (20) in the grinding process;
the Y-axis module is used for providing grinding pressure of the grinding wheel (20) in the grinding process;
the angle control module is used for setting the grinding angle of the grinding wheel (20) in the grinding process.
2. Grinding wheel grinding apparatus according to claim 1, characterized in that the X-axis module comprises an X-axis guide rail (8) and an X-axis slide block (9), the X-axis guide rail (8) being mounted on the support frame (6), the X-axis slide block (9) being in sliding connection with the X-axis guide rail (8), an X-axis drive module driving the X-axis slide block (9) to slide along the X-axis guide rail (8) for providing a horizontal feed movement of the grinding wheel (20) during grinding.
3. Grinding wheel grinding device according to claim 2, characterized in that the Y-axis module comprises a Y-axis guide rail (14) and a Y-axis slide block (15), the Y-axis guide rail (14) is mounted on the X-axis slide block (9), the Y-axis slide block (15) is slidably connected with the Y-axis guide rail (14), a pneumatic device for driving the Y-axis slide block (15) to slide along the Y-axis guide rail (14) is arranged on the Y-axis guide rail (14), and the variable-speed grinding motor (19) is mounted on the Y-axis slide block (15) through an angle control module.
4. A grinding wheel grinding apparatus according to claim 3, characterized in that the pneumatic means comprise a cylinder (12) mounted on the Y-axis guide rail (14), a piston rod (13) of the cylinder (12) being connected to the Y-axis slider (15), the cylinder (12) changing the grinding pressure of the grinding wheel (20) during grinding by adjusting the position of the Y-axis slider (15) on the Y-axis guide rail (14).
5. A grinding wheel grinding apparatus according to claim 3, wherein the angle control module comprises a connecting shaft (18) mounted on an angle indicating disc (17) and an angle adjusting member (16), the angle indicating disc (17) is mounted on the Y-axis slider (15), and the angle adjusting member (16) is used for adjusting an included angle between the connecting shaft (18) and the Y-axis direction, thereby changing a grinding angle of the grinding wheel (20) during grinding; the angle indicating disc (17) is used for indicating and detecting the current included angle between the connecting shaft (18) and the Y-axis direction, so that the current grinding angle is obtained.
6. Grinding wheel grinding apparatus according to claim 1, characterized in that the dust cover (2) is provided with an illumination device (3) inside.
7. Grinding wheel grinding apparatus according to claim 1, characterized in that the dust cap (2) is provided with a sampling/lofting window (4).
8. Grinding wheel grinding apparatus according to claim 1, further comprising an electrical control system comprising a control cabinet (25) arranged below the grinding platform (21), wherein an electrical control member (26) is arranged in the control cabinet (25), and wherein the electrical control member (26) is electrically connected to the grinding mechanism and an operation panel (27) arranged on the control cabinet (25), respectively.
9. Grinding wheel grinding apparatus according to claim 8, characterized in that the control cabinet (25) is provided with an access window (28).
10. The method for determining the grinding technological parameters of the grinding wheel is characterized by comprising the following steps of:
(a) Presetting a group of grinding process parameters for grinding a grinding workpiece (23) through a selected grinding wheel (20), wherein the grinding process parameters comprise grinding wheel rotating speed, grinding pressure, feeding speed, grinding angle and grinding time;
(b) After finishing polishing, calculating a grinding ratio and a metal removal rate, and combining the selected parameters of the grinding wheel (20), the parameters of the grinding workpiece (23), preset grinding process parameters, the grinding ratio and the metal removal rate into a first group of grinding comparison parameters;
(c) Adjusting one or more parameters in the grinding process parameters, repeating the steps (a) - (b), obtaining second-nth grinding comparison parameters, wherein n represents the total number of the obtained grinding comparison parameters; and comparing the first group to the nth group of grinding control parameters to obtain optimal grinding process parameters for grinding a given grinding workpiece (23) through the selected grinding wheel (20).
11. Method for determining grinding wheel grinding process parameters according to claim 10, characterized in that the method for determining optimum grinding process parameters for grinding a given ground workpiece (23) by means of a selected grinding wheel (20) comprises: if the grinding ratio and the metal grinding rate are larger than those of the other groups in a certain group of grinding control parameters, the grinding process parameters in the group of grinding control parameters are determined as the optimal grinding process parameters for grinding a given grinding workpiece (23) through the selected grinding wheel (20).
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| CN202310066102.2A CN116061064A (en) | 2023-01-17 | 2023-01-17 | Grinding wheel grinding device and grinding process parameter determining method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117444794A (en) * | 2023-12-25 | 2024-01-26 | 江苏宏德特种部件股份有限公司 | Polishing device and polishing method for increasing surface roughness of cast iron part |
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- 2023-01-17 CN CN202310066102.2A patent/CN116061064A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117444794A (en) * | 2023-12-25 | 2024-01-26 | 江苏宏德特种部件股份有限公司 | Polishing device and polishing method for increasing surface roughness of cast iron part |
| CN117444794B (en) * | 2023-12-25 | 2024-02-23 | 江苏宏德特种部件股份有限公司 | Polishing device and polishing method for increasing surface roughness of cast iron part |
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