A grinding wheel processing machine tool and processing technology

Abstract

The present invention relates to the field of grinding wheel dressing technology, and more specifically, to a grinding wheel processing machine tool and processing technology. The machine tool comprises a dressing disc, a coarse dressing component, a fine dressing component, a coarse processing area valve, a fine processing area valve, and a gravity arc plate. The present invention adjusts the coarse dressing component and the fine dressing component to make them contact with the rotating grinding wheel body by swinging in different directions, automatically switching the coarse and fine dressing work, thereby avoiding manual operation, ensuring the efficiency of the dressing work and avoiding the risks brought by manual operation. Secondly, during the swinging process, the position of the gravity arc plate is adjusted by gravity, and the position of the coarse processing area valve and the fine processing area valve is adjusted by magnetic repulsion and magnetic attraction effects, forming a blocking surface in the fine processing area and the coarse processing area, and using the blocking surface to prevent debris from further splashing. At the same time, an opening is formed at the top of the dust collecting chamber to guide the blocked debris to the inner end of the dust collecting chamber, completing the automatic collection of debris and reducing the subsequent cleaning work.

Description

Technical Field

[0001] The present invention relates to the technical field of grinding wheel dressing, in particular to a grinding wheel processing machine tool and a processing technology. Background Art

[0002] Grinding wheel is a bonded abrasive tool widely used in industrial manufacturing and manual processing. It is mainly used for deburring, grinding and polishing products of different materials. However, after long-term use, the contact end of the grinding wheel will become dull and grooved. In order to ensure the subsequent processing effect, the grinding wheel needs to be regularly dressed using a dressing machine. The processing process is as follows:

[0003] The first step is to place the grinding wheel to be dressed on the driving wheel, and the driving wheel drives the grinding wheel to be dressed to rotate;

[0004] The second step is to use rough processing and dressing equipment to perform rough grinding on the surface of the grinding wheel to clean the dullness on the surface and expose the deep groove defects;

[0005] The third step is to manually use fine processing and finishing equipment, such as dressing stones, to contact the rotating grinding wheel and perform deep grinding work to restore it to a smooth state.

[0006] During the dressing process, since the dressing tools need to be replaced, manual control is required, which is difficult to control. In addition, when the rotating grinding wheel contacts the dressing equipment, a large friction force will be generated. The manually controlled dressing equipment can easily detach due to poor force, which increases the risk in the dressing process and affects the dressing effect.

[0007] On the other hand, the dressing process uses the friction generated by the contact between the grinding wheel and the dressing equipment to eliminate dullness. Therefore, when the two are in contact, flying debris will be generated at their intersection. Since the manual handheld dressing equipment needs to be close to the grinding wheel, the flying debris can easily splash into the operator's mouth, nose and eyes, posing a threat to the operator's health and safety. At the same time, if the flying debris is not collected and controlled in time, it will accumulate in the operating space for a long time, causing damage to the operating environment.

[0008] In order to address the above problems, there is an urgent need for a grinding wheel processing machine tool that automatically controls the replacement and dressing equipment. Summary of the Invention

[0009] The object of the present invention is to provide a grinding wheel processing machine tool and a processing technology to solve the problems raised in the above background technology.

[0010] To achieve the above-mentioned object, one of the objects of the present invention is to provide a grinding wheel processing machine tool, comprising an operating table, a grinding wheel body and a driving mechanism for driving the grinding wheel body to rotate are arranged on the top of the operating table, and a dressing assembly is arranged on the outside of the bottom end of the grinding wheel body, the dressing assembly includes an outer frame and a dressing disk arranged on the side of the outer frame, both sides of the dressing disk are provided with external contact rings, and the side of the dressing disk is provided with a servo motor for driving the entire dressing assembly to swing left and right;

[0011] The center of the outer frame is located directly below the center of the grinding wheel body, and a coarse dressing component is provided at one end of the inner side of the dressing disc, and a fine dressing component is provided at the other end;

[0012] A dust collecting chamber is provided at the top of the trimming disc, a rough processing area valve is rotatably provided on the inner side of the top of the dust collecting chamber near the right side of the rough trimming component, a fine processing area valve is rotatably provided on the inner side of the top of the dust collecting chamber near the right side of the fine trimming component, and a gravity arc plate is slidably connected to the bottom wall of the inner end of the trimming disc;

[0013] Driven by the servo motor, the dressing component will drive the coarse dressing component to contact the rotating grinding wheel body during the right swing process, and will drive the fine dressing component to contact the rotating grinding wheel body during the left swing process. Under the action of gravity, the gravity arc plate is maintained to slide in the opposite direction of the dressing disk's rotation, and the rough processing area valve or the fine processing area valve at the dressing end is guided to open, forming a barrier surface at the dressing end to guide the debris generated during the dressing process to the inner end of the dust collecting chamber.

[0014] As a further improvement of the present technical solution, the driving mechanism includes a mounting frame and a driving motor installed on the top of the mounting frame, and the driving motor is coaxially connected to the grinding wheel body.

[0015] As a further improvement of the present technical solution, an external frame is coaxially provided on one side of the external ring, and the external frame is coaxially connected to the servo motor.

[0016] As a further improvement of the present technical solution, a magnetic repulsion block is provided at one end of the gravity arc plate near the rough processing area valve, and a magnetic attraction block is provided at one end of the gravity arc plate near the fine processing area valve. Magnets are provided at the bottom of the rough processing area valve near the rough trimming component and the bottom of the magnetic attraction block away from the fine trimming component. The magnetic repulsion block and the magnet provided at the bottom end of the rough processing area valve repel each other, and the magnetic attraction block and the magnet provided at the bottom end of the fine processing area valve attract each other.

[0017] As a further improvement of the present technical solution, the gravity at the left side of the rough processing area valve and the fine processing area valve is greater than the gravity at the right side thereof, and an annular cover plate is provided at the top opening of the dust collecting chamber. The annular cover plate forms protrusions near the left side of the fine processing area valve and the rough processing area valve, which are used to lift the contact end position and seal the top opening of the dust collecting chamber in cooperation with the fine processing area valve and the rough processing area valve in the covering state.

[0018] As a further improvement of the present technical solution, the left side positions of the rough processing area valve and the fine processing area valve are both wedge-shaped structures, and the wedge surfaces thereof are both facing the inner end of the dust collecting chamber.

[0019] As a further improvement of this technical solution, a support ring is provided at the bottom end of the trimming disk, the top end of the support ring is an arc-shaped structure, and its center is consistent with the center of the trimming disk, and the bottom end of the support ring is fixed at the top position of the operating table.

[0020] As a further improvement of the present technical solution, a plurality of rollers are rotatably provided at the bottom end of the trimming disk, and the bottom ends of the rollers are in rolling connection with the top end of the support ring.

[0021] As a further improvement of the present technical solution, a pair of card slots are symmetrically provided on the side surfaces of the two outer rings, and the coarse trimming component and the fine trimming component are respectively engaged with the card slots at symmetrical positions on both sides, and an insertion rod is provided at the inner end of the card slot for maintaining insertion with the coarse trimming component and the fine trimming component.

[0022] A second object of the present invention is to provide a method for machining using a grinding wheel machine tool, comprising the following steps:

[0023] S1. Place the grinding wheel body to be dressed above the driving mechanism, and drive the grinding wheel body to rotate through the driving mechanism;

[0024] S2. The servo motor drives the dressing disc to swing to the right, driving the fine dressing component to contact the rotating grinding wheel body. Under the action of gravity, the gravity arc plate slides in the opposite direction of the dressing disc's rotation, and guides the valve in the roughing area to open, forming a barrier surface at the dressing end, guiding the debris generated during the dressing process to the inner end of the dust collection chamber, completing the roughing work;

[0025] S3. The servo motor drives the dressing disc to swing to the left. During the left swing, the dressing disc will drive the fine dressing component to contact the rotating grinding wheel body, and guide the valve of the fine processing area at the dressing end to open, forming a barrier surface at the dressing end, and guiding the debris generated during the dressing process to the inner end of the dust collection chamber to complete the fine processing work.

[0026] Compared with the prior art, the present invention has the following beneficial effects:

[0027] In the processing machine tool and processing technology of the grinding wheel, the coarse dressing component and the fine dressing component are adjusted to contact the rotating grinding wheel body through different swinging directions, and the coarse and fine dressing work are automatically changed, thereby avoiding manual operation, ensuring the efficiency of the dressing work and avoiding the risks brought by manual operation. Secondly, during the swinging process, the position of the gravity arc plate is adjusted by gravity, and the position of the valve in the rough processing area and the valve in the fine processing area are adjusted by magnetic repulsion and magnetic attraction effects. Blocking surfaces are formed in the fine processing area and the rough processing area to prevent debris from further splashing. At the same time, an opening is formed at the top of the dust collecting chamber to guide the blocked debris to the inner end of the dust collecting chamber, completing the automatic collection of debris and reducing the subsequent cleaning work. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0029] Figure 2 It is a schematic structural diagram of the trimming assembly of the present invention;

[0030] Figure 3 This is a structural exploded view of the trimming assembly of the present invention;

[0031] Figure 4 This is a rough machining workflow diagram of the present invention;

[0032] Figure 5 It is the workflow diagram of fine processing of the present invention.

[0033] The meaning of each number in the figure is:

[0034] 10. Operating table; 110. Mounting frame; 120. Driving motor; 130. Grinding wheel body;

[0035] 20. Trimming assembly; 210. External frame; 220. Trimming plate; 221. Dust collection chamber; 222. Valve in fine machining area; 223. Valve in rough machining area; 224. Annular cover plate; 230. External ring; 231. Clamping groove; 232. Roller; 240. Rough trimming component; 241. Fine trimming component; 250. Support ring; 260. Gravity arc plate; 261. Magnetic attraction block; 262. Magnetic repulsion block;

[0036] 30. Servo motor. DETAILED DESCRIPTION

[0037] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative efforts shall fall within the scope of protection of the present invention.

[0038] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like to indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0039] See also Figure 1 As shown, one of the purposes of the present invention is to provide a grinding wheel processing machine tool, including an operating table 10, a grinding wheel body 130 and a driving mechanism for driving the grinding wheel body 130 to rotate are arranged on the top of the operating table 10, and a dressing assembly 20 is arranged on the outside of the bottom end of the grinding wheel body 130. The dressing assembly 20 includes an outer frame 210 and a dressing disk 220 arranged on the side of the outer frame 210. A servo motor 30 is arranged on the side of the dressing disk 220 to drive the entire dressing assembly 20 to swing left and right;

[0040] The center of the outer frame 210 is located directly below the center of the grinding wheel body 130, and a coarse dressing component 240 is provided at one end of the inner side of the dressing disc 220, and a fine dressing component 241 is provided at the other end;

[0041] A dust collecting chamber 221 is provided at the top of the trimming disc 220. A rough processing area valve 223 is rotatably provided on the inner side of the top of the dust collecting chamber 221 near the right side of the rough trimming component 240. A fine processing area valve 222 is rotatably provided on the inner side of the top of the dust collecting chamber 221 near the right side of the fine trimming component 241. A gravity arc plate 260 is slidably connected to the bottom wall of the inner end of the trimming disc 220.

[0042] Driven by the servo motor 30, the dressing component 20 in the process of swinging to the right will drive the coarse dressing component 240 to contact the rotating grinding wheel body 130, and in the process of swinging to the left will drive the fine dressing component 241 to contact the rotating grinding wheel body 130. Under the action of gravity, the gravity arc plate 260 is maintained to slide in the opposite direction of rotation of the dressing disk 220, and guides the rough processing area valve 223 or the fine processing area valve 222 at the dressing end to open, forming a barrier surface at the dressing end, and guiding the debris generated during the dressing process to the inner end of the dust collecting chamber 221.

[0043] The present invention designs a grinding wheel processing machine tool with automatic control replacement and dressing equipment, and the dressing steps are as follows:

[0044] First, place the grinding wheel body 130 to be dressed above the driving mechanism, as shown in the figure. Figure 1 As shown, the driving mechanism includes a mounting frame 110 placed on the top of the operating table 10 and a driving motor 120 fixed to the top of the mounting frame 110. The driving motor 120 is coaxially connected to the grinding wheel body 130. During the dressing process, the driving motor 120 drives the grinding wheel body 130 to rotate;

[0045] In order to avoid manual contact, the outer frame 210 for dressing is set at the bottom end of the grinding wheel body 130, and the outer frame 210 is an arc-shaped structure, which is lifted outside the bottom end of the grinding wheel body 130, and a gap is reserved between its top and the bottom end of the grinding wheel body 130. A coarse dressing component 240 for rough processing of the grinding wheel body 130 is set near the right side of the gap, and a fine dressing component 241 for fine processing of the grinding wheel body 130 is set near the left side of the gap.

[0046] It is worth noting that the center of the dressing disc 220 is set just below the center of the grinding wheel body 130. Therefore, when the dressing disc 220 is swung by the outer frame 210 in cooperation with the servo motor 30, the coarse dressing component 240 and the fine dressing component 241 that can rotate coaxially are driven to a position in contact with the surface of the grinding wheel body 130, such as Figure 4 As shown, when the dressing disc 220 swings to the right, the coarse dressing component 240 swings synchronously with the dressing disc 220, and at the same time, its side surface gradually approaches the side surface of the grinding wheel body 130 until the two contact. At this time, the rotating grinding wheel body 130 and the coarse dressing component 240 generate friction on the contact surface, and the dullness of the surface of the grinding wheel body 130 is removed by using this friction.

[0047] During the dressing process, when the grinding wheel body 130 contacts the coarse dressing component 240 or the fine dressing component 241, flying debris will be generated at the tangential position in the rotation direction of the grinding wheel body 130. Although it is blocked by the inner wall of the dressing disc 220 and cannot continue to fly outward, the inner wall space of the dressing disc 220 is prioritized. After a long period of processing, the accumulated debris will accumulate at various positions on the inner wall of the dressing disc 220, which will not only affect the later replacement of the coarse dressing component 240 and the fine dressing component 241, but also It will also increase the difficulty of subsequent cleaning. In order to solve the above problem, this solution is provided with a dust collecting chamber 221 on the inner side of the top of the dressing disc 220. The opening position of the dust collecting chamber 221 is close to the right side of the coarse dressing component 240 and a rough processing area valve 223 is provided near the right side of the fine dressing component 241. The fine processing area valve 222 and the rough processing area valve 223 are both rotatably connected to the inner side of the top of the dust collecting chamber 221. At the same time, a gravity arc plate 260 is slidingly provided on the inner side of the dressing disc 220. Figure 3 As shown, a magnetic repulsion block 262 is provided on the side of the gravity arc plate 260 close to the rough processing area valve 223, and a magnetic block is provided at the bottom end position of the rough processing area valve 223 close to the rough trimming component 240, that is, facing the inner end position of the dust collecting chamber 221, and the magnetic block and the magnetic repulsion block 262 repel each other. At the same time, a magnetic attraction block 261 is provided on the side of the gravity arc plate 260 close to the fine processing area valve 222, and a magnetic block is provided at the bottom end position of the fine processing area valve 222 away from the magnetic attraction block 261, and the magnetic block and the magnetic attraction block 261 attract each other.

[0048] In order to improve the airtightness of the entire dust collecting chamber 221, before the dressing work, the entire dust collecting chamber 221 is ensured to be in a closed environment. Therefore, an annular cover plate 224 is set at the top opening of the dust collecting chamber 221. The annular cover plate 224, the fine processing area valve 222 and the rough processing area valve 223 jointly maintain the sealing effect of the top opening of the dust collecting chamber 221. The dressing disk 220 is in a normal state, that is, it does not swing to the left or right. The gravity at the left end position of the fine processing area valve 222 is greater than the gravity at the right end, and the fine processing area valve 222 will have a tendency to tilt to the left. At the same time, the gravity near the left end position of the rough processing area valve 223 is greater than the gravity at the right end, and it will also have a tendency to tilt to the left. At this time, the annular cover plate 224 is set to support the left bottom end of the rough processing area valve 223 and the fine processing area valve 222 to maintain the covering state of the rough processing area valve 223 and the fine processing area valve 222.

[0049] Depend on Figure 4As shown, when the dressing disc 220 swings to the right, the rough dressing component 240 is synchronously driven to move to the upper right and contact the grinding wheel body 130. At the same time, as the dressing disc 220 swings to the upper right, the gravity arc plate 260 under the action of gravity will slide to the reverse position of the dressing disc 220 and slide along the inner side of the dust collecting chamber 221. At this time, the magnetic repulsion block 262 gradually approaches the bottom left end of the rough machining area valve 223, and the magnetic repulsion effect generated will cause the rough machining area valve 223 to move to the left side of the magnetic repulsion The block 262 rotates away from the grinding wheel body 130, that is, approaches the grinding wheel body 130. The rough machining area valve 223 in the rotating state will form a gap at the top of the dressing disc 220. At the same time, the left bottom end of the rough machining area valve 223 faces the contact position between the grinding wheel body 130 and the rough dressing component 240, forming a barrier surface on the trajectory of the debris splashing. The splashing debris is refracted after contacting the barrier surface and guided to the inner end of the opening until it enters the inner end of the dust collecting chamber 221, finally completing the collection of the debris generated by the rough machining.

[0050] Depend on Figure 5 As shown, when the dressing disc 220 swings to the left, it synchronously drives the fine dressing component 241 to move to the upper left and contact the grinding wheel body 130 to perform fine processing on the grinding wheel body 130. At the same time, the gravity arc plate 260 under the action of gravity will slide along the inner end of the dust collecting chamber 221 to the lower right position. At this time, the magnetic block 261 slides synchronously with the gravity arc plate 260 and gradually contacts the right bottom end position of the fine processing area valve 222. The generated magnetic attraction will drive the left bottom end position of the fine processing area valve 222 to flip downward, and the other side will flip toward the side position of the grinding wheel body 130, forming a barrier surface on the splash path of the debris generated by the friction between the fine dressing component 241 and the grinding wheel body 130, and guiding the debris generated by the fine processing to the inner end of the dust collecting chamber 221 for collection and processing;

[0051] Secondly, the left bottom end of the rough processing area valve 223 and the fine processing area valve 222 are both designed to be wedge-shaped, and the wedge surface is opposite to the inner end of the dust collecting chamber 221. When the rough processing area valve 223 and the fine processing area valve 222 are in a blocking state, the end of the wedge surface will contact the grinding wheel body 130, and the obstruction of the guided debris will be reduced, thereby improving the debris collection effect.

[0052] In order to improve the swing effect of the trimming disc 220, Figure 2 As shown, a plurality of rollers 232 are rotatably provided at the bottom end of the trimming disk 220 . During the swinging process, the rollers 232 roll along the inner side of the top end of the support ring 250 , reducing the friction resistance at the contact position between the two and improving the swinging effect of the trimming disk 220 .

[0053] It is worth noting that, since the trimming surfaces of the coarse trimming component 240 and the fine trimming component 241 need to be readjusted after the trimming work, and the long-term trimming work will cause the volume of the coarse trimming component 240 and the fine trimming component 241 to shrink until they cannot meet the current trimming work, in order to facilitate the adjustment and replacement work, such as Figure 2 As shown, corresponding positions on both sides of the two outer rings 230 are provided with card slots 231, and the two ends of the coarse trimming component 240 are respectively engaged with the card slots 231 on both sides. In order to prevent the coarse trimming component 240 and the fine trimming component 241 from rotating during the trimming process, the coarse trimming component 240 or the fine trimming component 241 can be fixed to the inner end of the card slot 231 by inserting a rod to prevent it from shifting in position.

[0054] The present invention fixes the coarse dressing component 240 and the fine dressing component 241 at the two ends of the inner side of the dressing disk 220 respectively, and adjusts the coarse dressing component 240 and the fine dressing component 241 to make them contact with the rotating grinding wheel body 130 through different swinging directions, automatically switching the coarse and fine dressing work, thereby avoiding manual operation, ensuring the efficiency of the dressing work and avoiding the risks brought by manual operation. Secondly, during the swinging process, the position of the gravity arc plate 260 is adjusted by gravity, and the positions of the rough processing area valve 223 and the fine processing area valve 222 are adjusted by magnetic repulsion and magnetic attraction effects, forming blocking surfaces in the fine processing area and the rough processing area, and using the blocking surfaces to prevent debris from further splashing. At the same time, an opening is formed at the top of the dust collecting chamber 221 to guide the blocked debris to the inner end of the dust collecting chamber 221, completing the automatic collection of debris and reducing the subsequent cleaning work.

[0055] A second object of the present invention is to provide a method for machining using a grinding wheel machine tool, comprising the following steps:

[0056] S1, placing the grinding wheel body 130 to be dressed above the driving mechanism, and driving the grinding wheel body 130 to rotate through the driving mechanism;

[0057] S2. The servo motor 30 drives the dressing disc 220 to swing rightward, driving the fine dressing component 241 to contact the rotating grinding wheel body 130. Under the action of gravity, the gravity arc plate 260 is maintained to slide in the opposite direction of the rotation of the dressing disc 220, and the roughing area valve 223 is guided to open, forming a barrier surface at the dressing end, guiding the debris generated during the dressing process to the inner end of the dust collection chamber 221, completing the roughing work;

[0058] S3. The servo motor 30 drives the dressing disc 220 to swing to the left. During the leftward swing, the dressing disc 220 will drive the fine dressing component 241 to contact the rotating grinding wheel body 130, and guide the fine processing area valve 222 at the dressing end to open, forming a barrier surface at the dressing end, and guiding the debris generated during the dressing process to the inner end of the dust collecting chamber 221 to complete the fine processing work.

[0059] The above shows and describes the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely preferred examples of the present invention and are not intended to limit the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and improvements fall within the scope of the present invention. The scope of protection claimed in the present invention is defined by the appended claims and their equivalents.

Claims

1. A grinding wheel processing machine tool, comprising an operating table, a grinding wheel body and a driving mechanism for driving the grinding wheel body to rotate are arranged on the top of the operating table, characterized in that: It also includes a dressing assembly arranged on the outside of the bottom end of the grinding wheel body, the dressing assembly includes an outer frame and a dressing disc arranged on the side of the outer frame, both sides of the dressing disc are provided with external rings, and the side of the dressing disc is provided with a servo motor that drives the entire dressing assembly to swing left and right; The center of the outer frame is located directly below the center of the grinding wheel body, and a coarse dressing component is provided at one end of the inner side of the dressing disc, and a fine dressing component is provided at the other end; A dust collecting chamber is provided at the top of the trimming disc, a rough processing area valve is rotatably provided on the inner side of the top of the dust collecting chamber near the right side of the rough trimming component, a fine processing area valve is rotatably provided on the inner side of the top of the dust collecting chamber near the right side of the fine trimming component, and a gravity arc plate is slidably connected to the bottom wall of the inner end of the trimming disc; Driven by the servo motor, the dressing assembly in the process of swinging to the right will drive the coarse dressing component to contact the rotating grinding wheel body, and the dressing assembly in the process of swinging to the left will drive the fine dressing component to contact the rotating grinding wheel body. Under the action of gravity, the gravity arc plate is maintained to slide in the opposite direction of the rotation direction of the dressing disk, and the valve of the rough processing area or the fine processing area at the dressing end is guided to open, forming a barrier surface at the dressing end to guide the debris generated during the dressing process to the inner end of the dust collecting chamber; The gravity arc plate is provided with a magnetic repulsion block at one end close to the rough processing area valve, and the gravity arc plate is provided with a magnetic attraction block at one end close to the fine processing area valve. Magnets are provided at the bottom of the rough processing area valve close to the rough trimming component and at the bottom of the magnetic attraction block away from the fine trimming component. The magnetic repulsion block and the magnet provided at the bottom end of the rough processing area valve repel each other, and the magnetic attraction block and the magnet provided at the bottom end of the fine processing area valve attract each other. The gravity at the left side of the rough processing area valve and the fine processing area valve is greater than the gravity at the right side thereof. The top opening of the dust collecting chamber is provided with an annular cover plate. The annular cover plate forms a protrusion near the left side of the fine processing area valve and the rough processing area valve, which is used to lift the contact end position and cooperate with the fine processing area valve and the rough processing area valve in the covering state to seal the top opening of the dust collecting chamber; A supporting ring is provided at the bottom end of the trimming disk, the top end of the supporting ring is in an arc-shaped structure, and the center of the circle is consistent with the center of the trimming disk, and the bottom end of the supporting ring is fixed to the top position of the operating table.

2. The grinding wheel processing machine tool according to claim 1, characterized in that: The driving mechanism includes a mounting frame and a driving motor installed on the top of the mounting frame, and the driving motor is coaxially connected to the grinding wheel body.

3. The grinding wheel processing machine tool according to claim 1, characterized in that: An outer frame is coaxially arranged on one side of the outer ring, and the outer frame is coaxially connected to the servo motor.

4. The grinding wheel processing machine tool according to claim 1, characterized in that: The left side of the rough processing area valve and the fine processing area valve are both wedge-shaped structures, and the wedge surfaces thereof are both facing the inner end of the dust collecting chamber.

5. The grinding wheel processing machine tool according to claim 4, characterized in that: A plurality of rollers are rotatably provided at the bottom end of the trimming disc, and the bottom ends of the rollers are in rolling connection with the top end of the support ring.

6. The grinding wheel processing machine tool according to claim 3, characterized in that: A pair of card slots are symmetrically provided on the side surfaces of the two outer rings, and the coarse trimming component and the fine trimming component are respectively engaged with the card slots at symmetrical positions on both sides, and an insertion rod is provided at the inner end of the card slot to maintain insertion with the coarse trimming component and the fine trimming component.

7. A processing method for a machine tool using the grinding wheel according to claim 1, characterized in that: The method comprises the following steps: S1. Place the grinding wheel body to be dressed above the driving mechanism, and drive the grinding wheel body to rotate through the driving mechanism; S2. The servo motor drives the dressing disc to swing to the right, driving the fine dressing component to contact the rotating grinding wheel body. Under the action of gravity, the gravity arc plate is kept sliding in the opposite direction of the dressing disc's rotation, and the valve in the rough machining area is guided to open, forming a barrier surface at the dressing end, guiding the debris generated during the dressing process to the inner end of the dust collection chamber, completing the rough machining work; S3. The servo motor drives the dressing disc to swing to the left. During the left swing, the dressing disc will drive the fine dressing component to contact the rotating grinding wheel body, and guide the valve of the fine processing area at the dressing end to open, forming a barrier surface at the dressing end, and guiding the debris generated during the dressing process to the inner end of the dust collection chamber to complete the fine processing work.

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