CN113977375A - Double-sided plane grinding method - Google Patents
Double-sided plane grinding method Download PDFInfo
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- CN113977375A CN113977375A CN202111446228.XA CN202111446228A CN113977375A CN 113977375 A CN113977375 A CN 113977375A CN 202111446228 A CN202111446228 A CN 202111446228A CN 113977375 A CN113977375 A CN 113977375A
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- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 claims description 3
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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
- 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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- 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
- B24B27/0076—Other grinding machines or devices grinding machines comprising two or more grinding tools
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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
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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
- B24B53/00—Devices or means for dressing or conditioning abrasive surfaces
- B24B53/06—Devices or means for dressing or conditioning abrasive surfaces of profiled abrasive wheels
Abstract
The application provides a method for grinding a double-sided plane, which is used for processing an antenna and comprises the following steps: cutting the antenna through a CNC machine, and determining a preset allowance according to the deformation degree of the antenna; carrying out double-sided plane grinding on the antenna according to a preset allowance, detecting the flatness of the antenna, and when the flatness of the antenna is larger than a preset range, repeatedly grinding the antenna until the flatness reaches the standard; specifically, the step of double-sided plane grinding comprises the following steps: dressing grinding wheels of a double-sided grinding machine, and leveling the distance and the flatness of the grinding wheels; and grinding the front side and the back side of the antenna to a preset allowance at a specified rotating speed. According to the method, the material is not required to be destressed, the antenna flatness can be controlled, the antenna parallelism can be effectively guaranteed, the stability and the smoothness of the antenna flatness are improved, and the processing cost is reduced.
Description
Technical Field
The application relates to the technical field of precision machining, in particular to a double-sided plane grinding method.
Background
The mobile communication technology is a technology which can effectively transmit information at any time, any place and any distance. With the advent of mobile communication technology, people gradually shift their communication modes from cellular phones to mass internet. The base station antenna is primarily responsible for receiving signals from the mobile station and sending back to the beacon a response signal made by the communication system to the received signal.
An antenna is a special device that converts electromagnetic energy in a transmission line into electromagnetic waves in free space, or converts space electromagnetic waves into electromagnetic energy in a transmission line. In a wireless connection from a base station antenna to a subscriber handset antenna or from a subscriber handset antenna to a base station antenna in a mobile communications network, the location of its operating quality in the overall network operating quality is very significant. Therefore, it is very important to process the antenna.
The antenna CNC machining process is easy to deform, and in order to ensure the flatness of a workpiece, the existing control method generally adopts antenna stress relief, high-precision mechanical equipment machining selection, reasonable design of a machining process, reasonable distribution of cutting amount of a cutter, cutter step pitch percentage and the like. The conventional method for improving the flatness has high cost, and the ideal effect is difficult to achieve for the antenna with high precision requirement. The flatness requirement of a terminal antenna product is high, and after a metal antenna is machined, most antenna products can deform to different degrees due to factors such as the release of antenna stress, the cutting amount of a cutter, an unreasonable product clamping mode and the like in the machining process, so that the flatness and the parallelism are NG.
Disclosure of Invention
In view of the problem, the present application is directed to a method of double-sided flat lapping that overcomes or at least partially solves the problem, comprising:
a method for double-sided plane grinding is used for processing an antenna and comprises the following steps:
cutting the antenna through a CNC machine, and determining a preset allowance according to the deformation degree of the antenna;
carrying out double-sided plane grinding on the antenna according to a preset allowance, detecting the flatness of the antenna, and when the flatness of the antenna is larger than a preset range, repeatedly grinding the antenna until the flatness reaches the standard; specifically, the step of double-sided plane grinding comprises the following steps: dressing grinding wheels of a double-sided grinding machine, and leveling the distance and the flatness of the grinding wheels; and grinding the front side and the back side of the antenna to a preset allowance at a specified rotating speed.
Further, the step of cutting the antenna through the CNC machine and reserving a preset margin according to the deformation degree of the antenna includes:
cutting the antenna through a CNC machine;
and determining a preset allowance according to the recessed lowest points of the front surface and the back surface of the antenna, wherein the recessed lowest point is equal to the preset allowance.
Further, the grinding wheels of the double-side grinding machine are trimmed, and the distance and the flatness of the grinding wheels are leveled; grinding the front side and the back side of the antenna to a preset allowance at a specified rotating speed, wherein the grinding method comprises the following steps:
inspecting the double-side grinder;
when the double-sided grinding machine can work normally, the grinding wheels are trimmed, and the distance and the flatness of the grinding wheels are leveled;
and grinding the front side and the back side of the antenna to preset allowance in times at a specified rotating speed.
Further, the fractional grinding is a single grinding of 0.05 mm.
Further, the step of grinding the front and back surfaces of the antenna to a preset margin at a specified rotation speed includes:
grinding the first piece of the antenna by the double-sided grinder;
and when the flatness of the first piece of the antenna is within a preset range, grinding the front side and the back side of the antenna to a preset allowance at a specified rotating speed.
Further, the step of grinding the first piece of the antenna by the double-side grinder includes:
debugging the double-sided grinding machine;
and when the double-side grinder is debugged, grinding the first piece of the antenna through the double-side grinder.
Further, when the flatness of the first piece of the antenna is within a preset range, grinding the front side and the back side of the antenna to a preset allowance at a specified rotating speed, wherein the grinding step comprises the following steps:
when the front and back surfaces of the antenna are ground, grooves are formed in the front and back surfaces of the antenna;
and filling the groove with gypsum powder, and cleaning and drying the antenna.
Further, the preset range is 0-0.005 mm.
Further, the specified rotation speed is 850 revolutions.
Further, the grinding wheel is silicon carbide.
The application has the following advantages:
in the embodiment of the application, the antenna is cut through a CNC machine, and the preset allowance is determined according to the deformation degree of the antenna; carrying out double-sided plane grinding on the antenna according to a preset allowance, detecting the flatness of the antenna, and when the flatness of the antenna is larger than a preset range, repeatedly grinding the antenna until the flatness reaches the standard; specifically, the step of double-sided plane grinding comprises the following steps: dressing grinding wheels of a double-sided grinding machine, and leveling the distance and the flatness of the grinding wheels; and grinding the front side and the back side of the antenna to a preset allowance at a specified rotating speed. According to the method, the material is not required to be destressed, the antenna flatness can be controlled, the antenna parallelism can be effectively guaranteed, the stability and the smoothness of the antenna flatness are improved, and the processing cost is reduced.
Drawings
In order to more clearly illustrate the technical solutions of the present application, the drawings needed to be used in the description of the present application will be briefly introduced below, and it is apparent that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without inventive labor.
Fig. 1 is a flowchart illustrating steps of a double-sided flat polishing method according to an embodiment of the present disclosure.
Detailed Description
In order to make the aforementioned objects, features and advantages of the present application more comprehensible, the present application is described in further detail with reference to the accompanying drawings and the detailed description. It is to be understood that the embodiments described are only a few embodiments of the present application and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
One of the core concepts of the present application is to cut an antenna by a CNC machine and determine a preset margin according to a deformation degree of the antenna; carrying out double-sided plane grinding on the antenna according to a preset allowance, detecting the flatness of the antenna, and when the flatness of the antenna is larger than a preset range, repeatedly grinding the antenna until the flatness reaches the standard; specifically, the step of double-sided plane grinding comprises the following steps: dressing grinding wheels of a double-sided grinding machine, and leveling the distance and the flatness of the grinding wheels; and grinding the front side and the back side of the antenna to a preset allowance at a specified rotating speed.
Referring to fig. 1, a method for double-sided plane grinding provided by an embodiment of the present application is illustrated for antenna processing;
the method comprises the following steps:
s110, cutting the antenna through a CNC machine, and determining a preset allowance according to the deformation degree of the antenna;
s120, carrying out double-sided plane grinding on the antenna according to a preset allowance, detecting the flatness of the antenna, and when the flatness of the antenna is larger than a preset range, repeatedly grinding the antenna until the flatness reaches the standard; specifically, the step of double-sided plane grinding comprises the following steps: dressing grinding wheels of a double-sided grinding machine, and leveling the distance and the flatness of the grinding wheels; and grinding the front side and the back side of the antenna to a preset allowance at a specified rotating speed.
In the embodiment of the application, the antenna is cut through a CNC machine, and the preset allowance is determined according to the deformation degree of the antenna; carrying out double-sided plane grinding on the antenna according to a preset allowance, detecting the flatness of the antenna, and when the flatness of the antenna is larger than a preset range, repeatedly grinding the antenna until the flatness reaches the standard; specifically, the step of double-sided plane grinding comprises the following steps: dressing grinding wheels of a double-sided grinding machine, and leveling the distance and the flatness of the grinding wheels; and grinding the front side and the back side of the antenna to a preset allowance at a specified rotating speed. According to the method, the material is not required to be destressed, the antenna flatness can be controlled, the antenna parallelism can be effectively guaranteed, the stability and the smoothness of the antenna flatness are improved, and the processing cost is reduced.
Next, a method of double-sided flat lapping in the present exemplary embodiment will be further described.
The method comprises the step of cutting the antenna through a CNC machine and determining a preset allowance according to the deformation degree of the antenna as stated in the step S110.
In an embodiment of the present invention, the specific process of "cutting the antenna by the CNC machine and determining the preset margin according to the deformation degree of the antenna" in step S110 may be further described with reference to the following description.
Cutting the antenna by a CNC machine as described in the following steps;
it should be noted that the CNC machine is a Computer Numerical Control machine (Computer Numerical Control), and is mainly used for cutting processing of inner and outer cylindrical surfaces, inner and outer conical surfaces with any taper angle, complex revolution inner and outer curved surfaces, cylinders, conical threads and the like of shaft parts or disc parts, and can perform grooving, drilling, reaming, boring and the like. The CNC machine automatically processes the parts to be processed according to a processing program which is programmed in advance, a processing process route, process parameters, a motion track of a cutter, a displacement, cutting parameters and auxiliary functions of the parts are written into a processing program list according to an instruction code and a program format which are specified by the CNC machine, the content in the program list is recorded on a control medium and then is input into a numerical control device of the CNC machine, and thus the machine tool is instructed to process the parts.
As an example, the material of the antenna is preferably steel, aluminum or copper. When a material is deformed by an external factor (stress, humidity, pressure, temperature field change, etc.), an internal force is generated between each part in the material, and the internal force per unit area is called stress. Because of the existence of stress, after the stress is acted by the outside, the stress is induced to release and the stress residual position cracks, so that the material has the process of releasing the internal stress for a long time at room temperature or releasing the residual stress for a short time at high temperature, and meanwhile, the local position of the product has poor strength, and the material can generate the problem of warping or deformation at the stress residual position.
In a specific implementation, the antenna is placed on the CNC machine, and the front and back sides of the antenna are processed by the blade.
Determining a preset allowance according to the recessed lowest points of the front and the back surfaces of the antenna, wherein the recessed lowest point is equal to the preset allowance.
It should be noted that, after the blade of the CNC machine processes the front and back surfaces of the antenna, the surface of the antenna may have a certain deformation.
In one embodiment, the antenna is subjected to flatness measurement after CNC machining according to a flatness measuring instrument, recessed lowest points of the front surface and the back surface of the antenna are respectively determined, and the recessed lowest points of the front surface and the back surface of the antenna are used as preset allowance for double-surface plane grinding.
If the step S120 is performed, performing double-sided plane grinding on the antenna according to a preset margin, detecting the flatness of the antenna, and when the flatness of the antenna is larger than a preset range, repeatedly grinding the antenna until the flatness reaches the standard; specifically, the step of double-sided plane grinding comprises the following steps: dressing grinding wheels of a double-sided grinding machine, and leveling the distance and the flatness of the grinding wheels; and grinding the front side and the back side of the antenna to a preset allowance at a specified rotating speed.
It should be noted that a Double-side grinding Machine (Double-lapping Machine) is a grinding Machine for grinding the surface of a workpiece by using a grinding tool coated with or embedded with an abrasive, and is mainly used for Double-side grinding of high-precision planes, inner and outer cylindrical surfaces, conical surfaces, spherical surfaces, threaded surfaces and other profiles of crystals or other mechanical parts with parallel surfaces, especially for processing of thin and brittle materials. The upper and lower grinding discs of the double-sided grinding machine rotate in opposite directions, and the workpiece does planetary motion which revolves and rotates in the carrier. The grinding resistance is small, the workpiece is not damaged, and the production efficiency of uniform grinding of two surfaces is high. And a grating thickness control system is arranged, so that the thickness tolerance of the processed product can be controlled. The device of the double-sided grinder comprises two grinding discs, a loose pulley, four motors, a sun gear, a flour trimmer and the like.
In an embodiment of the present application, the antenna is subjected to double-sided plane grinding according to a preset margin, the flatness of the antenna is detected, and when the flatness of the antenna is larger than a preset range, the antenna is repeatedly ground until the flatness reaches the standard.
In a specific implementation, flatness detection is performed on a preset point position of a double-side ground antenna through a flatness measuring instrument, when the range of the preset point position is larger than a preset range, the preset allowance of the antenna is determined again, the front side and the back side of the antenna are ground to the preset allowance according to the preset allowance at a specified rotating speed, flatness detection is performed on the antenna again, when the range of the preset point position of the antenna is within the preset range, OK is determined, and otherwise, the antenna is repeatedly ground until the flatness reaches the standard.
In an embodiment of the present invention, the specific process of "cutting the antenna by the CNC machine and leaving a predetermined margin according to the deformation degree of the antenna" in step S120 may be further described with reference to the following description.
Inspecting the double side grinder as described in the following steps;
in one specific implementation, the main power supply and the grinding fluid of the double-sided grinding machine are checked before starting the machine, the tightness of parts and screws of the double-sided grinding machine is detected, the flexibility of a motor shaft during rotation is detected, and when the problems are not abnormal, an electric box is opened and a power supply starting button is pressed.
When the double-sided grinding machine can work normally, dressing the grinding wheel and leveling the distance and the flatness of the grinding wheel;
as an example, the grinding wheel is dressed and molded or dressed to remove a worn surface layer by using single-particle diamond as a dressing tool so as to restore the grinding performance and the correct geometric shape of a working surface, and the grinding wheel is dressed timely and correctly to improve the grinding efficiency and ensure the grinding quality; after finishing the grinding wheel, adjusting the balance block on the grinding wheel disc by a trial and error method to try the balance of the grinding wheel step by step, and finishing the flatness of the grinding wheel by flatness adjusting equipment.
In a specific implementation, a diamond cutter arranged on a cutter frame is respectively inclined by 5-15 degrees in the vertical direction and the horizontal direction, the contact point of the diamond and a grinding wheel is 0.5-2mm lower than the axis of the grinding wheel, and the diamond does low-speed uniform motion during dressing; and after finishing, placing the grinding wheel in a groove of a grinding wheel clamping seat of the flatness adjusting equipment, and performing flatness finishing on the grinding wheel in the horizontal and vertical directions by using a grinding wheel dresser.
And grinding the front side and the back side of the antenna to a preset allowance in times at a specified rotating speed as follows.
In an embodiment of the present invention, a specific process of "grinding the front and back surfaces of the antenna to a predetermined margin in a predetermined number of times at a specific rotation speed" may be further described with reference to the following description.
Grinding a leading piece of the antenna by the double-side grinder as described in the following steps;
as an example, the double-sided grinder is debugged, and the operation parameters of the double-sided grinder are set; and when the double-side grinder is debugged, grinding the first piece of the antenna through the double-side grinder.
And grinding the front side and the back side of the antenna to a preset allowance at a specified rotating speed when the flatness of the first piece of the antenna is within a preset range.
As an example, the planeness of the ground first antenna is detected by a planeness measuring instrument, and when the planeness of the first antenna is 0-0.005mm, the front side and the back side of the antenna are ground to a preset margin at a specified rotating speed.
In a specific implementation, when the front and back surfaces of the antenna are ground, grooves of 0.05mm are formed in the front and back surfaces of the antenna; filling the groove with gypsum powder, and cleaning and drying the antenna; the groove can effectively prevent cutting deformation caused by cutting of the cutter, and the flatness of the product is ensured.
In an embodiment of the present application, the predetermined range is 0-0.005mm, preferably 0.001mm, 0.002mm, 0.003mm, 0.004mm or 0.005 mm.
In one embodiment of the present application, the specified speed is 850 revolutions.
In an embodiment of the present application, the grinding wheel is silicon carbide.
The following are specific examples:
example 1
Cutting the antenna through a CNC machine, and determining a preset allowance according to the deformation degree of the antenna;
carrying out double-sided plane grinding on the antenna according to a preset allowance, detecting the flatness of the antenna, and judging OK when the flatness of the antenna is 0.001 mm; specifically, the step of double-sided plane grinding comprises the following steps: dressing grinding wheels of a double-sided grinding machine, and leveling the distance and the flatness of the grinding wheels; and under 850 revolutions, grinding the front side and the back side of the antenna to a preset allowance.
Example 2
Cutting the antenna through a CNC machine, and determining a preset allowance according to the deformation degree of the antenna;
carrying out double-sided plane grinding on the antenna according to a preset allowance, detecting the flatness of the antenna, and judging OK when the flatness of the antenna is 0.005 mm; specifically, the step of double-sided plane grinding comprises the following steps: dressing grinding wheels of a double-sided grinding machine, and leveling the distance and the flatness of the grinding wheels; and under 850 revolutions, grinding the front side and the back side of the antenna to a preset allowance.
Example 3
Cutting the antenna through a CNC machine, and determining a preset allowance according to the deformation degree of the antenna;
carrying out double-sided plane grinding on the antenna according to a preset allowance, detecting the flatness of the antenna, and repeatedly grinding the antenna until the flatness reaches the standard when the flatness of the antenna is 0.006 mm; specifically, the step of double-sided plane grinding comprises the following steps: dressing grinding wheels of a double-sided grinding machine, and leveling the distance and the flatness of the grinding wheels; and under 850 revolutions, grinding the front side and the back side of the antenna to a preset allowance.
While preferred embodiments of the present application have been described, additional variations and modifications of these embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. Therefore, it is intended that the appended claims be interpreted as including the preferred embodiment and all such alterations and modifications as fall within the true scope of the embodiments of the application.
Finally, it should also be noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or terminal that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or terminal. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a process, method, article, or terminal that comprises the element.
The method for double-sided plane grinding provided by the present application is described in detail above, and the principle and the implementation manner of the present application are explained in the present application by applying specific examples, and the description of the above examples is only used to help understand the method and the core idea of the present application; meanwhile, for a person skilled in the art, according to the idea of the present application, there may be variations in the specific embodiments and the application scope, and in summary, the content of the present specification should not be construed as a limitation to the present application.
Claims (10)
1. A method for grinding a double-sided plane is used for processing an antenna, and is characterized by comprising the following steps:
cutting the antenna through a CNC machine, and determining a preset allowance according to the deformation degree of the antenna;
carrying out double-sided plane grinding on the antenna according to a preset allowance, detecting the flatness of the antenna, and when the flatness of the antenna is larger than a preset range, repeatedly grinding the antenna until the flatness reaches the standard; specifically, the step of double-sided plane grinding comprises the following steps: dressing grinding wheels of a double-sided grinding machine, and leveling the distance and the flatness of the grinding wheels; and grinding the front side and the back side of the antenna to a preset allowance at a specified rotating speed.
2. The method of double-sided plane grinding as claimed in claim 1, wherein the step of cutting the antenna by a CNC machine with a predetermined margin according to a deformation degree of the antenna comprises:
cutting the antenna through a CNC machine;
and determining a preset allowance according to the recessed lowest points of the front surface and the back surface of the antenna, wherein the recessed lowest point is equal to the preset allowance.
3. The double-sided flat grinding method according to claim 1, wherein the dressing of the grinding wheel of the double-sided grinding machine is performed, and the pitch and flatness of the grinding wheel are leveled; grinding the front side and the back side of the antenna to a preset allowance at a specified rotating speed, wherein the grinding method comprises the following steps:
inspecting the double-side grinder;
when the double-sided grinding machine can work normally, the grinding wheels are trimmed, and the distance and the flatness of the grinding wheels are leveled;
and grinding the front side and the back side of the antenna to preset allowance in times at a specified rotating speed.
4. The method of double-sided flat lapping according to claim 3, wherein the fractional lapping is a single lapping of 0.05 mm.
5. The method of claim 3, wherein the step of grinding the front and back sides of the antenna to a predetermined margin at a predetermined rotation speed comprises:
grinding the first piece of the antenna by the double-sided grinder;
and when the flatness of the first piece of the antenna is within a preset range, grinding the front side and the back side of the antenna to a preset allowance at a specified rotating speed.
6. The method of claim 5, wherein the step of grinding the antenna leader by the double side grinder comprises:
debugging the double-sided grinding machine;
and when the double-side grinder is debugged, grinding the first piece of the antenna through the double-side grinder.
7. The method of claim 5, wherein when the flatness of the first piece of the antenna is within a predetermined range, the step of grinding the front and back sides of the antenna to a predetermined margin at a predetermined rotation speed comprises:
when the front and back surfaces of the antenna are ground, grooves are formed in the front and back surfaces of the antenna;
and filling the groove with gypsum powder, and cleaning and drying the antenna.
8. The double-sided planar lapping method of claim 5, wherein the predetermined range is 0-0.005 mm.
9. The method of claim 1, wherein the specified rotational speed is 850 revolutions.
10. The double-sided flat grinding method according to claim 1, wherein the grinding wheel is silicon carbide.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111446228.XA CN113977375A (en) | 2021-11-30 | 2021-11-30 | Double-sided plane grinding method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111446228.XA CN113977375A (en) | 2021-11-30 | 2021-11-30 | Double-sided plane grinding method |
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| CN113977375A true CN113977375A (en) | 2022-01-28 |
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| CN114871955A (en) * | 2022-05-25 | 2022-08-09 | 郑州磨料磨具磨削研究所有限公司 | Precision machining method and system for superhard abrasive grinding tool |
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