Working method of a peripheral grinding machine and peripheral grinding machine

Abstract

The application provides a working method of a peripheral grinder and the peripheral grinder, and relates to the technical field of grinders.The working method of the peripheral grinder comprises the following steps: a grinding step, controlling the peripheral grinder to grind a first blade and obtaining the maximum grinding force of the peripheral grinder on the first blade; a comparison step, comparing the grinding force with a predetermined value; when the maximum grinding force is smaller than the predetermined value, executing the grinding step; when the maximum grinding force is greater than or equal to the predetermined value, executing a cleaning step, and after the cleaning step is completed, executing the grinding step; the cleaning step comprises the following steps: controlling the peripheral grinder to grind a second blade, and the hardness of the second blade is greater than that of the first blade. In this way, the second blade is used to clean the grinding wheel, and the cleaning cost of the grinding wheel is reduced. Meanwhile, when the second blade is used to clean the grinding wheel, the grinding wheel is also used to process the second blade, so that the utilization rate of the grinding wheel is improved.

Description

Technical Field

[0001] This application relates to the field of grinding machine technology, and in particular to a working method of a peripheral grinding machine and a peripheral grinding machine. Background Technology

[0002] Peripheral grinders are machine tools that grind the periphery of a workpiece by rotating and feeding a main grinding wheel. They are mainly used in the superhard cutting tool grinding industry.

[0003] The main grinding wheel is primarily made of diamond. Irregularly shaped diamond particles of the same size and diameter are sintered onto the grinding wheel matrix using a binder, resulting in an uneven microscopic surface. Microscopically, the diamond particles protrude from the grinding wheel, forming "peaks" to maintain sharpness. However, when the main grinding wheel grinds a workpiece, the material particles that fall off the workpiece during grinding adhere to the main grinding wheel, clogging the gaps between the diamond particles. This makes the microscopic surface of the grinding wheel smooth, causing it to lose its sharpness and reducing grinding force.

[0004] The current mainstream method for dealing with grinding wheel clogging is to install a cleaning wheel on the grinding machine. This cleaning wheel, made of large-particle white corundum, grinds against the main grinding wheel during the grinding process to remove clogging from its surface. This method of cleaning and smoothing the grinding wheel consumes both the main grinding wheel and the dressing wheel. When using the dressing wheel to clean the main grinding wheel, the consumption of the main grinding wheel is more than five times that when grinding cutting tools. This results in significant idle consumption of the main grinding wheel during cleaning and high grinding costs. Summary of the Invention

[0005] In view of this, this application provides a working method for a peripheral grinding machine and a peripheral grinding machine to solve the problems of high consumption of the main grinding wheel, serious idle consumption of the main grinding wheel during cleaning, and high grinding cost when using a dressing wheel to clean the main grinding wheel.

[0006] According to one aspect of this application, a method for operating a peripheral grinding machine is provided, the method being used to control the peripheral grinding machine to sequentially grind a plurality of first cutting tools, the method comprising:

[0007] The grinding step involves controlling the peripheral grinding machine to grind the first cutting tool and obtaining the maximum grinding force of the peripheral grinding machine on the first cutting tool.

[0008] The comparison step involves comparing the grinding force with a predetermined value;

[0009] The grinding step is performed when the maximum grinding force is less than the predetermined value;

[0010] When the maximum grinding force is greater than or equal to the predetermined value, a cleaning step is performed; after the cleaning step is completed, the grinding step is performed.

[0011] The cleaning steps include:

[0012] The peripheral grinding machine is controlled to grind the second blade, the hardness of which is greater than that of the first blade.

[0013] Preferably, the working method of the peripheral grinding machine further includes:

[0014] After the cleaning step is completed, the inscribed circle diameter of the second blade is obtained;

[0015] The diameter of the inscribed circle is compared with a predetermined range. When the diameter of the inscribed circle is greater than the upper limit of the predetermined range, the second blade can continue to be used to perform the cleaning step.

[0016] When the diameter of the inscribed circle is within the predetermined range, another second blade is used to perform the cleaning step.

[0017] Preferably, the working method of the peripheral grinding machine further includes:

[0018] After the cleaning step is completed, replace the second blade with another one to perform the cleaning step.

[0019] Preferably, the first blade is a PCBN blade and the second blade is a PCD blade.

[0020] Preferably, the first blade is a cermet blade and the second blade is a PCBN blade.

[0021] Preferably, the first blade is a cemented carbide blade, and the second blade is a PCBN blade.

[0022] Preferably, both the first blade and the second blade are PCBN blades, and the CBN content of the first blade is less than the CBN content of the second blade.

[0023] Preferably, the peripheral grinding machine uses a ceramic-coated diamond grinding wheel.

[0024] Preferably, the peripheral grinding machine uses a resin-bonded diamond grinding wheel.

[0025] According to another aspect of this application, a peripheral grinding machine is provided, which performs the above-described peripheral grinding machine working method.

[0026] The working method of the peripheral grinding machine in this application includes:

[0027] The grinding process involves controlling the grinding of the first cutting tool by the peripheral grinding machine and obtaining the maximum grinding force of the peripheral grinding machine on the first cutting tool.

[0028] The comparison step compares the grinding force with a predetermined value;

[0029] The grinding step is performed when the maximum grinding force is less than the predetermined value;

[0030] When the maximum grinding force is greater than or equal to the predetermined value, the cleaning step is performed, and the grinding step is performed after the cleaning step is completed.

[0031] The cleaning step includes controlling a peripheral grinding machine to grind the second blade, the second blade having a higher hardness than the first blade.

[0032] When performing the aforementioned peripheral grinding method on a peripheral grinding machine, after grinding a first insert, the maximum grinding force applied by the grinding wheel to the first insert during grinding is compared with a predetermined value. If the maximum grinding force is less than the predetermined value, the wear of the grinding wheel on the peripheral grinding machine is relatively small, and grinding of the next first insert can continue. After the peripheral grinding machine has finished grinding a first insert, if the maximum grinding force during grinding of the first insert is greater than or equal to the predetermined value, the wear of the peripheral grinding wheel is relatively large, and a cleaning step is performed, allowing the peripheral grinding machine to grind the second insert. Since the hardness of the second insert is greater than that of the first insert, this causes a squeezing effect when the second insert contacts the grinding wheel, displacing dull particles from the grinding wheel and sharpening it. After the cleaning step, the grinding wheel can continue to be used to grind the first insert. In this way, the grinding wheel is cleaned using the second insert. Compared to using a white corundum cleaning wheel, using the second insert for cleaning the grinding wheel results in less wear, thereby reducing the cleaning cost of the grinding wheel. Meanwhile, while the second blade cleans the grinding wheel, the grinding wheel also processes the second blade, thereby improving the utilization rate of the grinding wheel. Attached Figure Description

[0033] To more clearly illustrate the technical solutions of the embodiments of this application, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this application and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0034] Figure 1 A flowchart illustrating the working method of the peripheral grinding machine of the present invention is provided. Detailed Implementation

[0035] The following detailed embodiments are provided to help the reader gain a comprehensive understanding of the methods, apparatus, and / or systems described herein. However, various changes, modifications, and equivalents of the methods, apparatus, and / or systems described herein will be apparent after understanding the disclosure of this application. For example, the order of operations described herein is merely illustrative and is not limited to the order set forth herein; changes that will be apparent after understanding the disclosure of this application are possible, except for operations that must occur in a specific order. Furthermore, for clarity and brevity, descriptions of features known in the art may be omitted.

[0036] The features described herein may be implemented in different forms and should not be construed as being limited to the examples described herein. Rather, the examples described herein have been provided merely to illustrate some of the many feasible ways of implementing the methods, apparatus, and / or systems described herein that will be apparent upon understanding the disclosure of this application.

[0037] Throughout the specification, when an element (such as a layer, region, or substrate) is described as being "on" another element, "connected to" another element, "bonded to" another element, "on" another element, or "covering" another element, it may be directly "on" another element, "connected to" another element, "bonded to" another element, "on" another element, or "covering" another element, or there may be one or more other elements in between. In contrast, when an element is described as being "directly on" another element, "directly connected to" another element, "directly bonded to" another element, "directly on" another element, or "directly covering" another element, there may be no other elements in between.

[0038] As used herein, the term “and / or” includes any one of the relevant items listed and any combination of any two or more items.

[0039] Although terms such as “first,” “second,” and “third” may be used herein to describe individual components, assemblies, regions, layers, or parts, these components, assemblies, regions, layers, or parts are not limited by these terms. Rather, these terms are used only to distinguish one component, assembly, region, layer, or part from another. Therefore, without departing from the teachings of the examples described herein, the first component, assembly, region, layer, or part referred to as the second component, assembly, region, layer, or part may also be referred to as the second component, assembly, region, layer, or part.

[0040] For ease of description, spatial relation terms such as “above,” “upper,” “below,” and “lower” are used herein to describe the relationship between one element and another, as shown in the accompanying drawings. Such spatial relation terms are intended to include not only the orientation depicted in the drawings but also different orientations of the device during use or operation. For example, if the device in the drawings is flipped, an element described as being “above” or “upper” relative to another element will subsequently be “below” or “lower” relative to that other element. Therefore, the term “above” includes both “above” and “below” orientations depending on the spatial orientation of the device. The device may also be positioned in other ways (e.g., rotated 90 degrees or in other orientations), and the spatial relation terms used herein will be interpreted accordingly.

[0041] The terminology used herein is for the purpose of describing various examples only and is not intended to limit this disclosure. Unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. The terms “comprising,” “including,” and “having” enumerate the stated features, quantities, operations, components, elements, and / or combinations thereof, but do not exclude the presence or addition of one or more other features, quantities, operations, components, elements, and / or combinations thereof.

[0042] Variations in the shapes shown in the accompanying drawings may occur due to manufacturing techniques and / or tolerances. Therefore, the examples described herein are not limited to the specific shapes shown in the accompanying drawings, but include changes in shape that may occur during manufacturing.

[0043] The features of the examples described herein can be combined in various ways that will be apparent upon understanding the disclosure of this application. Furthermore, although the examples described herein have a wide variety of constructions, other constructions are possible, as will be apparent upon understanding the disclosure of this application.

[0044] According to one aspect of this application, a method for operating a peripheral grinding machine is provided, such as... Figure 1 As shown, the working method of the peripheral grinding machine is used to control the peripheral grinding machine to grind multiple first cutting tools sequentially. The working method of the peripheral grinding machine includes:

[0045] The grinding step involves controlling the peripheral grinding machine to grind the first cutting tool and obtaining the maximum grinding force of the peripheral grinding machine on the first cutting tool.

[0046] The comparison step compares the grinding force with a predetermined value;

[0047] The grinding step is performed when the maximum grinding force is less than the predetermined value;

[0048] When the maximum grinding force is greater than or equal to the predetermined value, the cleaning step is performed, and the grinding step is performed after the cleaning step is completed.

[0049] The cleaning steps include:

[0050] The peripheral grinding machine is controlled to grind the second cutting tool, and the hardness of the second cutting tool is greater than that of the first cutting tool.

[0051] When performing the peripheral grinding method of this application on a peripheral grinding machine, after grinding a first insert, the maximum grinding force applied by the grinding wheel to the first insert during grinding is compared with a predetermined value. When the maximum grinding force is less than the predetermined value, the wear of the grinding wheel on the peripheral grinding machine is small, and grinding of the next first insert can continue. After the peripheral grinding machine has finished grinding a first insert, if the maximum grinding force during grinding of the first insert is greater than or equal to the predetermined value, the wear of the peripheral grinding wheel is large, and a cleaning step is performed, allowing the peripheral grinding machine to grind a second insert. Since the hardness of the second insert is greater than that of the first insert, this causes a squeezing effect when the second insert contacts the grinding wheel, displacing dull particles from the grinding wheel and sharpening it. After the cleaning step, the grinding wheel can continue to be used to grind the first insert. In this way, the grinding wheel is cleaned using the second insert. Compared to cleaning the grinding wheel using a white corundum cleaning wheel, cleaning the grinding wheel using the second insert results in less wear, thereby reducing the cleaning cost of the grinding wheel. Meanwhile, while the second blade cleans the grinding wheel, the grinding wheel also processes the second blade, thereby improving the utilization rate of the grinding wheel.

[0052] Optionally, the predetermined value can be 1.1 times the maximum grinding force applied by the peripheral grinding wheel to the first cutting tool during the grinding process of the unused grinding wheel on the first cutting tool.

[0053] Furthermore, the second cutting tool used for cleaning the grinding wheel is ground until the diameter of the inscribed circle is within a predetermined range. Once the second cutting tool is finished, it can also be used. In other words, the grinding wheel can be ground during the cleaning process, thereby improving the utilization rate of the grinding wheel.

[0054] Furthermore, the working methods of peripheral grinding machines also include:

[0055] After the cleaning step is completed, obtain the inscribed circle diameter of the second blade;

[0056] The diameter of the inscribed circle is compared with a predetermined range. If the diameter of the inscribed circle is greater than the upper limit of the predetermined range, the second blade can continue to be used to perform the cleaning step.

[0057] When the diameter of the inscribed circle is within a predetermined range (i.e., the diameter of the inscribed circle is less than or equal to the upper limit of the predetermined range and greater than or equal to the lower limit of the predetermined range), replace it with another second blade to perform the cleaning step.

[0058] The aforementioned predetermined range refers to the range that the inscribed circle diameter of the second insert must meet when it is ground as a conventional insert. After performing one cleaning step, the inscribed circle diameter of the second insert is checked. If the inscribed circle diameter of the second insert is still greater than the upper limit of the predetermined range, then the second insert does not meet the processing requirements, but it can still be used to perform the cleaning step. If, after performing one cleaning step, the inscribed circle diameter of the second insert is within the predetermined range, then the second insert meets the processing requirements, and the processing of the second insert is completed. The second insert can no longer be used to perform the cleaning step.

[0059] Optionally, a second blade of a different material can be selected for a first blade of a different material, and the predetermined range can be different when using a second blade of a different material.

[0060] Furthermore, when grinding the first insert on a peripheral grinding machine, different grinding programs are selected for the first insert to meet the grinding requirements of first inserts made of different materials. Simultaneously, during the cleaning step, the grinding program used for the first insert can be used to grind the second insert, or a special grinding program can be selected based on the material of the second insert.

[0061] When grinding the second insert using the same grinding program as the first insert, because the hardness of the second insert is greater than that of the first insert, the inscribed circle diameter of the second insert is still greater than the upper limit of the predetermined range after the first grinding. At this point, the second insert can undergo multiple cleaning steps. Furthermore, because the hardness of the second insert is greater than that of the first insert, performing cleaning steps using the same grinding program as the first insert will not cause the inscribed circle diameter of the second insert to decrease directly from the upper limit of the predetermined range to the lower limit. In other words, when the inscribed circle diameter of a second insert is only slightly greater than the upper limit of the predetermined range after performing a cleaning step, performing one more cleaning step will bring the inscribed circle diameter of the second insert within the predetermined range, thus completing the machining of the second insert.

[0062] When grinding the second insert using the second insert grinding program, the inner circle diameter of the second insert can be brought within the predetermined range by performing a cleaning step once. At this time, a second insert can only perform a cleaning step once. When performing a cleaning step again, a new second insert needs to be replaced.

[0063] Optionally, a second blade made of a different material can be selected based on the material of the first blade.

[0064] When the first insert is a PCBN (Polycrystalline Cubic Boron Nitride) insert, the second insert can be a PCD (Polycrystalline Diamond) insert. In this case, the peripheral grinding machine uses a ceramic-diamond grinding wheel. Because the hardness of the PCD insert is greater than that of the PCBN insert, the PCD insert can displace the particles that have become dull from grinding the PCBN insert on the peripheral grinding machine, thus keeping the ceramic-diamond grinding wheel sharp. While the PCD insert is cleaning the grinding wheel, the grinding wheel is also machining the PCD insert, thereby improving the utilization rate of the grinding wheel. In this embodiment, when using a ceramic-coated diamond grinding wheel to grind PCD inserts alone, the ceramic-coated diamond grinding wheel can only grind 200 inserts. When using a ceramic-coated diamond grinding wheel to grind PCBN inserts alone, the ceramic-coated diamond grinding wheel can only grind 1300 inserts. If the peripheral grinding machine working method of this application is adopted, the ceramic-coated diamond grinding wheel can grind 1200 PCBN inserts and 200 PCD inserts, thus improving the utilization rate of the ceramic-coated diamond grinding wheel.

[0065] When the first insert is a cermet insert and the second insert is a PCBN insert, the peripheral grinding machine uses a resin-bonded diamond grinding wheel. Because the hardness of the PCBN insert is greater than that of the cermet insert, the PCBN insert can displace the particles that have become dull from grinding the cermet insert on the peripheral grinding machine, thus keeping the resin-bonded diamond grinding wheel sharp. While the PCBN insert cleans the grinding wheel, the grinding wheel also processes the PCBN insert, thereby improving the utilization rate of the grinding wheel. In this embodiment, when using the resin-bonded diamond grinding wheel to grind only PCBN inserts, the resin-bonded diamond grinding wheel can grind only 300 inserts; when using it to grind only cermet inserts, it can grind 3300 inserts. Using the peripheral grinding machine method of this application, the resin-bonded diamond grinding wheel can grind 200 PCBN inserts and 3200 cermet inserts, improving the utilization rate of the resin-bonded diamond grinding wheel.

[0066] When the first insert is a carbide insert and the second insert is a PCBN insert, the peripheral grinding machine uses a resin-bonded diamond grinding wheel. Since the hardness of the PCBN insert is greater than that of the carbide insert, the PCBN insert can displace the particles that have become dull from grinding the carbide insert on the peripheral grinding machine, thus keeping the resin-bonded diamond grinding wheel sharp. While the PCBN insert cleans the grinding wheel, the grinding wheel also processes the PCBN insert, thereby improving the utilization rate of the grinding wheel. In this embodiment, when using the resin-bonded diamond grinding wheel to grind only PCBN inserts, only 200 inserts can be ground; when using the resin-bonded diamond grinding wheel to grind only carbide inserts, 30,000 inserts can be ground. If the peripheral grinding machine working method of this application is adopted, the resin-bonded diamond grinding wheel can grind 200 PCBN inserts and 30,000 carbide inserts, improving the utilization rate of the resin-bonded diamond grinding wheel.

[0067] Optionally, both the first and second inserts are PCBN inserts, with the CBN content in the first insert being lower than that in the second insert. In this case, the peripheral grinding machine uses a ceramic-based diamond grinding wheel. Because the second insert with a higher CBN content has a higher hardness than the first insert with a lower CBN content, it can effectively remove particles from the peripheral grinding machine that have become dull from grinding the first insert with a lower CBN content, thus keeping the ceramic-based diamond grinding wheel sharp. While the second insert with a higher CBN content is cleaning the grinding wheel, the grinding wheel is also processing the second insert with a higher CBN content, thereby improving the utilization rate of the grinding wheel.

[0068] When the first insert is a PCBN insert with specification model SNGN090408, and the second insert is a PCD insert of the same specification model, and the peripheral grinding machine uses a ceramic-coated diamond grinding wheel, the cleaning step is performed according to the program for grinding PCBN inserts. When grinding PCD inserts, the peripheral grinding machine performs the working method of the peripheral grinding machine of this application to grind PCBN inserts as follows:

[0069] (1) Perform the grinding step so that the peripheral grinding machine grinds the first PCBN cutting tool;

[0070] During the grinding of the first PCBN insert, the maximum grinding force applied by the grinding wheel to the first PCBN insert was less than the predetermined value. Meanwhile, after grinding the first PCBN insert, the grinding wheel was slightly dirty and its surface was slightly blackened, but the grinding wheel was still usable.

[0071] (2) Perform the grinding step so that the peripheral grinder grinds the second PCBN insert;

[0072] During the process of cutting the second PCBN insert, if the maximum grinding force applied by the grinding wheel to the second PCBN insert exceeds the predetermined value, a cleaning step is required afterwards.

[0073] (3) Perform a cleaning step to allow the peripheral grinding machine to grind the PCD insert;

[0074] The PCD insert is ground using a process that grinds PCBN inserts. When the grinding is completed, the inscribed circle diameter of the PCD insert is greater than the maximum value within a predetermined range. The PCD insert can then be reused to perform the cleaning step.

[0075] After the cleaning step is completed, the grinding step can be performed again to grind the PCBN insert. The maximum grinding force applied by the grinding wheel to the PCBN insert during the grinding step is compared with a predetermined value, and the grinding step or the cleaning step is selected based on the comparison result, and so on. When the PCD insert is cleaned until the inscribed circle diameter of the PCD insert is within a predetermined range, the PCD insert can no longer be used for the cleaning step. When the cleaning step is performed again, a different PCD insert is used to clean the grinding wheel.

[0076] When the first insert is a PCBN insert with specification model SNGN090408, and the second insert is a PCD insert of the same specification model, and the peripheral grinding machine uses a ceramic-coated diamond grinding wheel, the cleaning step is performed using the PCD insert grinding program. The peripheral grinding machine then performs the PCBN insert grinding process according to the peripheral grinding method of this application as follows:

[0077] (1) Perform the grinding step so that the peripheral grinding machine grinds the first PCBN cutting tool;

[0078] (2) Perform the grinding step so that the peripheral grinder grinds the second PCBN insert;

[0079] (3) Perform a cleaning step to allow the peripheral grinding machine to grind the PCD insert;

[0080] The PCD insert is ground using a grinding program. When the grinding is completed, the inscribed circle diameter of the PCD insert is within a predetermined range, and the PCD insert can no longer be used to perform the cleaning step. When the cleaning step is performed again, a different PCD insert is used to clean the grinding wheel.

[0081] After the cleaning step is completed, the grinding step can be performed again to grind the PCBN insert. Based on the comparison results, either the grinding step or the cleaning step can be performed, and so on.

[0082] According to another aspect of this application, a peripheral grinding machine is provided. This peripheral grinding machine performs the aforementioned peripheral grinding method. The grinding wheel of the peripheral grinding machine is cleaned by grinding a second cutting tool. Compared to cleaning the grinding wheel using a white corundum cleaning wheel, cleaning the grinding wheel using a second cutting tool results in less wear on the grinding wheel, thereby reducing the cleaning cost. Simultaneously, while the second cutting tool is cleaning the grinding wheel, the grinding wheel also processes the second cutting tool, thus improving the utilization rate of the grinding wheel.

[0083] Furthermore, the peripheral grinding machine of this application no longer requires dressing the grinding wheel or installing related components, nor does it require dressing the grinding wheel, thus simplifying the structure of the peripheral grinding machine and reducing its cost.

[0084] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A working method for a peripheral grinding machine, characterized in that, The working method of the peripheral grinding machine is used to control the peripheral grinding machine to grind multiple first cutting tools sequentially. The working method of the peripheral grinding machine includes: The grinding step involves controlling the peripheral grinding machine to grind the first cutting tool and obtaining the maximum grinding force of the peripheral grinding machine on the first cutting tool. The comparison step involves comparing the grinding force with a predetermined value; The grinding step is performed when the maximum grinding force is less than the predetermined value; When the maximum grinding force is greater than or equal to the predetermined value, a cleaning step is performed; after the cleaning step is completed, the grinding step is performed. The cleaning steps include: The peripheral grinding machine is controlled to grind the second blade, the hardness of which is greater than that of the first blade; The working method of the peripheral grinding machine also includes: After the cleaning step is completed, the inscribed circle diameter of the second blade is obtained; The diameter of the inscribed circle is compared with a predetermined range. When the diameter of the inscribed circle is greater than the upper limit of the predetermined range, the second blade can continue to be used to perform the cleaning step. When the diameter of the inscribed circle is within the predetermined range, another second blade is used to perform the cleaning step.

2. The working method of the peripheral grinding machine according to claim 1, characterized in that, The working method of the peripheral grinding machine also includes: After the cleaning step is completed, replace the second blade with another one to perform the cleaning step.

3. The working method of the peripheral grinding machine according to claim 1, characterized in that, The first blade is a PCBN blade, and the second blade is a PCD blade.

4. The working method of the peripheral grinding machine according to claim 1, characterized in that, The first blade is a cermet blade, and the second blade is a PCBN blade.

5. The working method of the peripheral grinding machine according to claim 1, characterized in that, The first blade is a cemented carbide blade, and the second blade is a PCBN blade.

6. The working method of the peripheral grinding machine according to claim 1, characterized in that, Both the first blade and the second blade are PCBN blades, and the CBN content in the first blade is less than the CBN content in the second blade.

7. The working method of the peripheral grinding machine according to claim 3 or 6, characterized in that, The peripheral grinding machine uses ceramic-coated diamond grinding wheels.

8. The working method of the peripheral grinding machine according to claim 4 or 5, characterized in that, The peripheral grinding machine uses resin-bonded diamond grinding wheels.

9. A peripheral grinding machine, characterized in that, The peripheral grinding machine is operated according to any one of claims 1-8.

Images