Grinding machine tool for machining inner and outer cylinders

Abstract

The invention relates to the field of grinding machine tools, and discloses a grinding machine tool for machining inner and outer cylinders, which comprises a circular truncated cone grinding machine shell and an electric permanent magnetic chuck arranged in the circular truncated cone grinding machine shell, a storage mechanism is arranged on the outer side of the electric permanent magnetic chuck, a water spraying mechanism is arranged on the storage mechanism, and a first filtering mechanism and a second filtering mechanism are arranged in the storage mechanism. A cover plate assembly is arranged above the storage mechanism, the storage mechanism comprises an outer annular plate arranged on the outer side of the electric permanent magnetic chuck, an annular bottom plate is fixedly connected to the lower portion of the inner side of the outer annular plate, and an inner annular plate is fixedly connected to the upper portion of the inner side of the annular bottom plate. According to the water spraying device, the water is sprayed horizontally and accurately to a contact gap where a workpiece and a suction cup are most prone to blockage in a flat water curtain mode, the water spraying device can be effectively wedged into the gap, accumulated or to-be-blocked chippings are scattered and stripped, and adverse effects on the workpiece are prevented.

Description

Technical Field

[0001] This invention relates to the field of grinding machine tool technology, specifically to a grinding machine tool for machining internal and external cylinders. Background Technology

[0002] Patent application CN220312750U includes a main base, a housing, a crossbeam, a first grinding mechanism, a second grinding mechanism, and a placement mechanism. The housing is mounted on the main base and has a sliding door on one side. The crossbeam is fixedly mounted on the main base and located inside the housing. The first and second grinding mechanisms are horizontally movable on the crossbeam via a moving mechanism, corresponding to inner and outer grinding wheels respectively, and can drive the inner and outer grinding wheels to rise and fall. The placement mechanism includes an electromagnetic chuck and a turntable, with the electromagnetic chuck located on top of the turntable and rotating accordingly. This application includes two sets of grinding mechanisms, which can be controlled to move independently to grind the inner and outer rings of a semiconductor ring, improving grinding efficiency.

[0003] In the aforementioned patents, some existing internal and external cylindrical grinding machines still have a common problem when performing end face or internal and external cylindrical grinding on ring-shaped workpieces: poor coolant chip removal, which easily leads to blockage in the contact area between the bottom of the workpiece and the worktable. During the grinding process, a large amount of coolant carrying metal chips and grinding wheel abrasive grains flows to the contact surface between the workpiece and the chuck. Since the ring-shaped workpiece and the chuck are usually in close planar contact or have tiny grooves, the resulting gap is extremely narrow. Chips in the coolant easily accumulate and stagnate in this narrow gap, eventually forming a blockage. This not only prevents the coolant under the workpiece from draining smoothly, affecting the cooling effect of the processing area, and may cause thermal deformation of the workpiece, reducing processing accuracy; at the same time, the accumulated hard chips may also scratch the precision working surface of the chuck or the positioning surface of the workpiece, causing equipment damage. Summary of the Invention

[0004] The purpose of this invention is to provide a grinding machine tool for machining internal and external cylinders, so as to solve the problems mentioned in the background art.

[0005] To solve the above-mentioned technical problems, the technical solution of the present invention is: a grinding machine tool for machining internal and external cylinders, comprising a rotary table grinding machine housing and an electro-permanent magnet chuck disposed within the rotary table grinding machine housing, a storage mechanism disposed on the outer side of the electro-permanent magnet chuck, a water spraying mechanism disposed on the storage mechanism, a first filter mechanism and a second filter mechanism disposed within the storage mechanism, a cover plate assembly disposed above the storage mechanism, the storage mechanism comprising an outer annular plate disposed on the outer side of the electro-permanent magnet chuck, an annular bottom plate fixedly connected to the lower inner side of the outer annular plate, and an inner annular plate fixedly connected to the upper inner side of the annular bottom plate; The outer annular plate is fixedly connected to the inner side of the first annular track. A water outlet groove is opened above the outer annular plate. An annular slot is fixedly connected above the annular bottom plate. A positioning rod is provided on the annular slot. Four short rods are fixedly connected to the side of the inner annular plate facing the outer annular plate. The four short rods are evenly distributed along the circumference of the inner annular plate. An arc-shaped short rod is fixedly connected to the end of the short rod away from the inner annular plate.

[0006] Preferably, the cover plate assembly includes an annular cover plate fixedly connected to the upper inner side of the outer annular plate, an annular connecting plate fixedly connected to the lower inner side of the annular cover plate, a second annular track fixedly provided on the outer side of the annular connecting plate, two fixing plates fixedly connected to the outer side of the annular connecting plate, and four pressure plates rotatably connected above the annular cover plate, the four pressure plates being evenly distributed along the circumference of the annular cover plate.

[0007] Preferably, the annular connecting plate and the first annular track are at the same horizontal level.

[0008] Preferably, the water spraying mechanism includes a fixed shell fixedly connected to the upper end of the annular cover plate, a water pump is provided inside the fixed shell, a connecting hose is fixedly provided at the water inlet end of the water pump inside the fixed shell, the other end of the connecting hose passes through the fixed shell and is fixedly connected to the water outlet trough, a protective shell is provided above the fixed shell, and a nozzle is provided inside the protective shell, the nozzle being a flat fan-shaped nozzle.

[0009] Preferably, the height of the nozzle inside the protective shell is at the same horizontal level as the groove on the electro-permanent magnet chuck.

[0010] Preferably, the first filtration mechanism includes an annular insert plate disposed on one side of the inner wall of the annular connecting plate. Multiple arc-shaped through grooves are provided below the annular insert plate, and a coarse filter screen is fixedly connected in the arc-shaped through grooves. Four rubber blocks corresponding to the pressure plate are fixedly connected to the upper end of the annular insert plate. A sealing ring is provided at the lower end of the annular insert plate. Both the sealing ring and the lower end of the annular insert plate are provided with positioning slots corresponding to the positioning rods on the annular slot.

[0011] Preferably, the inner wall of the annular insert plate corresponds to the arc-shaped short rod, and the outer wall of the annular insert plate corresponds to the annular connecting plate.

[0012] Preferably, the second filtration mechanism includes an outer annular rod rotatably connected within a first annular track, an inner annular rod rotatably connected within the second annular track, a plurality of connecting blocks fixedly connected between the inner annular rod and the outer annular rod, the plurality of connecting blocks being arranged circumferentially along the inner side of the outer annular rod, a vibrating plate being fixedly connected above the plurality of connecting blocks on the side near the annular connecting plate, and a fine filter screen being fixedly connected between the outer annular rod, the inner annular rod and the connecting blocks.

[0013] Preferably, the second filtration mechanism further includes a motor fixedly connected to two opposing connecting blocks, and a rotating wheel is fixedly connected to the output end of the motor.

[0014] Preferably, the rotating wheel makes rolling contact with the inner wall of the outer annular plate, and the vibration plate corresponds to the position of the fixed plate.

[0015] Compared with the prior art, the technical solution of the present invention has the following advantages: (1) A storage mechanism is provided on the outside of the electro-permanent magnet chuck, and a water spraying mechanism, a first filtration mechanism, and a second filtration mechanism are provided on the storage mechanism. In traditional grinding machines, when the coolant carrying debris flows to the narrow gap where the workpiece and the chuck contact, it is very easy to accumulate due to limited space and poor flow, eventually completely blocking the drain channel. This invention uses a flat fan-shaped nozzle at the same horizontal height as the groove of the electro-permanent magnet chuck to spray the clean coolant that has undergone two stages of filtration horizontally and precisely into the contact gap between the workpiece and the chuck, which is most prone to clogging, in the form of a flat water curtain. This spray has a concentrated impact force and a wide coverage area, which can effectively wedge into the gap and disperse and peel off the debris that has accumulated or is about to clog. This design avoids the negative effects of continuous flushing. Firstly, it saves coolant and electricity, and prevents potential erosion or damage to the surface of the precision chuck or the workpiece positioning surface caused by continuous water flow. This pulsed impact energy has a more explosive effect and is more effective than continuous water flow in dispersing compacted chips. Finally, the unobstructed chip removal path and precise pulse flushing form a perfect synergy. The pulsed water flow is responsible for clearing blockages, while the unobstructed path ensures that the dispersed chips can be quickly carried away and sent to the filtration system, ensuring that the coolant inside the annular workpiece can be continuously and normally discharged, thereby stabilizing the working conditions of the processing area and greatly improving the precision consistency, surface quality and overall efficiency of grinding. (2) The annular insert plate and coarse filter screen are responsible for intercepting most of the larger and heavier debris generated by grinding, such as metal burrs and broken grinding wheel particles. This removes the main impurities that would impact and quickly clog the subsequent precision filter screen. The layout of multiple arc-shaped channels effectively disperses fluid pressure and reduces flow resistance while ensuring a huge filtration throughput. The fine filter screen of the second filtration mechanism can capture the fine suspended particles remaining after primary filtration, allowing each filter screen to exert its maximum effect within its optimal particle size range, thereby extending the overall service life of the filter screen. The filter screen ring is driven to rotate at a constant speed by a motor, and the periodic movement between the fixed plate and the vibrating plate is utilized. The contact, squeezing, and release process transforms rotational motion into high-frequency, low-amplitude mechanical vibrations acting on the entire filter ring. This vibrational energy is evenly transmitted to each filter area, effectively "shaking off" stubborn fine impurities attached to and embedded in the mesh, causing them to settle to the bottom of the equipment under the action of gravity and water flow. This process is continuous, automatic, and requires no external intervention, ensuring that the filter remains permeable throughout the entire processing cycle and maintains stable filtration efficiency. This breaks the traditional cycle of filtration, clogging, shutdown, and cleaning. Compared to traditional complex systems that require manual cleaning after shutdown or rely on high-pressure backflushing, this solution has a simple structure, low energy consumption, and extremely high reliability. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the electro-permanent magnet chuck and storage mechanism of the present invention; Figure 3 This is a schematic diagram of the storage mechanism and water spraying mechanism of the present invention; Figure 4 This is a schematic diagram of the cross-sectional structure of the storage mechanism of the present invention; Figure 5 This is a schematic diagram of the internal structure of the storage mechanism of the present invention; Figure 6 This is a schematic diagram of the flip-up structure of the cover plate assembly of the present invention; Figure 7 This is a schematic diagram of the storage mechanism structure of the present invention; Figure 8 This is a schematic diagram of the first filtration mechanism of the present invention; Figure 9 This is a schematic diagram of the second filtration mechanism of the present invention; Figure 10 This is a schematic diagram of the water spray mechanism of the present invention.

[0017] In the diagram: 1. Rotary table grinder housing; 2. Electro-permanent magnet chuck; 3. Storage mechanism; 31. Outer annular plate; 311. First annular track; 312. Water outlet trough; 32. Annular base plate; 321. Annular slot; 33. Inner annular plate; 331. Short rod; 332. Arc-shaped short rod; 4. Water spraying mechanism; 41. Fixed shell; 42. Connecting hose; 43. Protective shell; 5. First filtration mechanism; 51. Annular insert plate; 52. Arc-shaped through groove; 53. Coarse filter screen; 54. Rubber block; 6. Second filtration mechanism; 61. Outer annular rod; 62. Inner annular rod; 63. Connecting block; 64. Vibration plate; 65. Motor; 66. Rotating wheel; 7. Cover plate assembly; 71. Annular cover plate; 72. Annular connecting plate; 73. Second annular track; 74. Fixed plate; 75. Pressure plate. Detailed Implementation

[0018] To make the objectives, technical solutions, and advantages of the embodiments of this disclosure clearer, the technical solutions of the embodiments of this disclosure will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this disclosure. All other embodiments obtained by those skilled in the art based on the described embodiments of this disclosure without creative effort are within the scope of protection of this disclosure.

[0019] Unless otherwise defined, the technical or scientific terms used in this disclosure shall have the ordinary meaning understood by one of ordinary skill in the art to which this disclosure pertains. The terms "comprising" or "including," and similar terms used in this disclosure, mean that an element or object preceding the term encompasses the elements or objects listed following the term and their equivalents, without excluding other elements or objects. Terms such as "connected" or "linked" are not limited to physical or mechanical connections, but may also include electrical connections, whether direct or indirect. Terms such as "upper," "lower," "left," and "right" are used only to indicate relative positional relationships; these relative positional relationships may change accordingly when the absolute position of the described objects changes.

[0020] like Figures 1 to 10 As shown, the present invention provides a grinding machine tool for machining internal and external cylinders, including a rotary table grinding machine housing 1 and an electro-permanent magnet chuck 2 disposed inside the rotary table grinding machine housing 1. A storage mechanism 3 is disposed on the outside of the electro-permanent magnet chuck 2. A water spraying mechanism 4 is disposed on the storage mechanism 3. A first filter mechanism 5 and a second filter mechanism 6 are disposed inside the storage mechanism 3. A cover plate assembly 7 is disposed above the storage mechanism 3. The storage mechanism 3 includes an outer annular plate 31 disposed on the outside of the electro-permanent magnet chuck 2. An annular bottom plate 32 is fixedly connected to the lower inner side of the outer annular plate 31. An inner annular plate 33 is fixedly connected to the upper inner side of the annular bottom plate 32. A drain hole is disposed below the annular bottom plate 32 and the drain hole is connected to the filtration equipment. A first annular track 311 is fixedly connected to the inner side of the outer annular plate 31. A water outlet groove 312 is opened above the outer annular plate 31. An annular slot 321 is fixedly connected above the annular bottom plate 32. A positioning rod is provided on the annular slot 321. Four short rods 331 are fixedly connected to the side of the inner annular plate 33 facing the outer annular plate 31. The four short rods 331 are evenly distributed along the circumference of the inner annular plate 33. An arc-shaped short rod 332 is fixedly connected to the end of the short rod 331 away from the inner annular plate 33.

[0021] The cover plate assembly 7 includes an annular cover plate 71 fixedly connected to the upper inner side of the outer annular plate 31. An annular connecting plate 72 is fixedly connected to the lower inner side of the annular cover plate 71. A second annular track 73 is fixedly provided on the outer side of the annular connecting plate 72. Two fixing plates 74 are fixedly connected to the outer side of the annular connecting plate 72. Four pressure plates 75 are rotatably connected above the annular cover plate 71. The four pressure plates 75 are evenly distributed along the circumference of the annular cover plate 71. A liquid level detection sensor is provided below the annular cover plate 71. When the liquid level detection sensor detects that the liquid level is too high, it controls the filtration device to draw some coolant from the annular bottom plate 32 through the drain hole to prevent the coolant from overflowing the annular bottom plate 32.

[0022] The annular connecting plate 72 and the first annular track 311 are at the same horizontal level.

[0023] The water spraying mechanism 4 includes a fixed housing 41 fixedly connected to the upper end of the annular cover plate 71. A water pump is installed inside the fixed housing 41. A connecting hose 42 is fixedly installed at the water inlet end of the water pump inside the fixed housing 41. The other end of the connecting hose 42 passes through the fixed housing 41 and is fixedly connected to the water outlet 312. A protective housing 43 is installed above the fixed housing 41. A nozzle is installed inside the protective housing 43, and the nozzle is a flat fan-shaped nozzle.

[0024] The nozzle height inside the protective shell 43 is at the same horizontal level as the groove position on the electro-permanent magnet chuck 2.

[0025] The first filtration mechanism 5 includes an annular insert plate 51 disposed on one side of the inner wall of the annular connecting plate 72. Multiple arc-shaped through grooves 52 are provided below the annular insert plate 51. A coarse filter screen 53 is fixedly connected in the arc-shaped through grooves 52. Four rubber blocks 54 corresponding to the pressure plate 75 are fixedly connected to the upper end of the annular insert plate 51. A sealing ring is provided at the lower end of the annular insert plate 51. Both the sealing ring and the lower end of the annular insert plate 51 are provided with positioning slots corresponding to the positioning rods on the annular slot 321. The annular insert plate 51 is fixed by rotating the pressure plate 75 to squeeze the rubber blocks 54.

[0026] The inner wall of the annular insert plate 51 corresponds to the arc-shaped short rod 332, and the outer wall of the annular insert plate 51 corresponds to the annular connecting plate 72, and rotates.

[0027] The second filtration mechanism 6 includes an outer annular rod 61 rotatably connected within the first annular track 311, an inner annular rod 62 rotatably connected within the second annular track 73, and a plurality of connecting blocks 63 fixedly connected between the inner annular rod 62 and the outer annular rod 61. The plurality of connecting blocks 63 are arranged circumferentially along the inner side of the outer annular rod 61. Vibration plates 64 are fixedly connected above the plurality of connecting blocks 63 on the side near the annular connecting plate 72. A fine filter screen is fixedly connected between the outer annular rod 61, the inner annular rod 62 and the connecting blocks 63.

[0028] The second filtration mechanism 6 also includes a motor 65 fixedly connected to two opposing connecting blocks 63, and a rotating wheel 66 fixedly connected to the output end of the motor 65.

[0029] The rotating wheel 66 rolls in contact with the inner wall of the outer annular plate 31, and the vibrating plate 64 is positioned corresponding to the fixed plate 74. The output end of the motor 65 drives the rotating wheel 66 to rotate. The rotating wheel 66 fits against the outer annular plate 31, causing the connecting block 63 to drive the outer annular rod 61 and the inner annular rod 62 within the first annular track 311 and the second annular track 73. The connecting block 63 drives the vibrating plate 64 to rotate. After the vibrating plate 64 contacts the fixed plate 74, it is squeezed and bent by the fixed plate 74. After the vibrating plate 64 passes the fixed plate 74, it generates vibration. The vibrating plate 64 transmits the vibration force to the fine filter screen between the outer annular rod 61, the inner annular rod 62 and the connecting block 63 to prevent the fine filter screen from clogging.

[0030] The working principle of this invention is as follows: When the machine tool starts, the electro-permanent magnet chuck 2 holds the workpiece and performs grinding. Coolant is sprayed onto the processing area. Used coolant, carrying grinding debris, flows down from the surface of the electro-permanent magnet chuck 2 and enters the storage mechanism 3, which is formed by the outer annular plate 31, the annular base plate 32, and the inner annular plate 33. A liquid level detection sensor installed below the annular cover plate 71 monitors the liquid level in real time. When the liquid level is too high, a signal is triggered, controlling the external filtration device connected to the drain hole below the annular base plate 32 to start, drawing away some coolant to prevent overflow. The coolant first encounters the first filtration mechanism 5, which consists of an annular insert plate 51, multiple arc-shaped grooves 52, and a coarse filter screen 53. The coolant must pass through the coarse filter 53 to enter the next zone. This process intercepts larger impurities such as grinding debris and fragments outside the coarse filter 53, completing the initial filtration. The coolant, after primary filtration, continues to rise to the filter layer formed by the second filter mechanism 6. This layer consists of a fine filter screen between the outer annular rod 61, the inner annular rod 62, and the connecting block 63. As the coolant rises and passes through the fine filter screen, small suspended particles are trapped, thus forming a clean coolant zone above the fine filter screen. The motor 65, fixed on the connecting block 63, starts, driving the rotating wheel 66 to roll along the inner wall of the outer annular plate 31, thereby driving the entire second filter mechanism 6 in the first ring. The filter rotates slowly and continuously within the shaped track 311 and the second annular track 73. During rotation, the vibrating plate 64 fixed on the connecting block 63 periodically contacts the fixed plate 74 fixed on the annular connecting plate 72. The vibrating plate 64 is bent and deformed after being squeezed by the fixed plate 74. When it passes the fixed plate 74, it generates high-frequency vibration due to elastic recovery. This vibration force is effectively transmitted to the entire fine filter screen frame through the connecting block 63. The high-frequency vibration loosens and shakes off the fine impurities attached to the fine filter screen, thereby automatically and continuously preventing the fine filter screen from clogging and ensuring the long-lasting filtration efficiency. The water pump in the spray mechanism 4 is connected to the water outlet 3 via the connecting hose 42. 12. Liquid is drawn from the clean coolant area after secondary filtration, and the water pump is set to operate intermittently. According to the required interval, the water pump delivers the clean coolant to the flat fan-shaped nozzle inside the protective shell 43. The height of the nozzle is precisely set to be level with the groove position on the electro-permanent magnet chuck 2. The flat fan-shaped water curtain sprayed from the nozzle is horizontally directed at the contact gap between the annular workpiece and the electro-permanent magnet chuck 2 with a certain pressure and coverage. The electro-permanent magnet chuck 2 drives the annular workpiece to rotate. At this time, the water curtain washes the entire bottom of the outer ring workpiece. Then the water pump stops working, so that the debris blocking the groove is flushed away, and the coolant inside the processed annular workpiece can be discharged normally.

[0031] The above embodiments are merely exemplary embodiments of the present invention and are not intended to limit the present invention. The scope of protection of the present invention is defined by the claims. Those skilled in the art can make various modifications or equivalent substitutions to the present invention within its spirit and scope of protection, and such modifications or equivalent substitutions should also be considered to fall within the scope of protection of the present invention.

Claims

1. A grinding machine tool for machining internal and external cylinders, comprising a rotary table grinding machine housing (1) and an electro-permanent magnet chuck (2) disposed within the rotary table grinding machine housing (1), wherein a storage mechanism (3) is disposed on the outside of the electro-permanent magnet chuck (2), a water spraying mechanism (4) is disposed on the storage mechanism (3), a first filter mechanism (5) and a second filter mechanism (6) are disposed within the storage mechanism (3), and a cover plate assembly (7) is disposed above the storage mechanism (3), characterized in that: The storage mechanism (3) includes an outer annular plate (31) disposed on the outside of the electro-permanent magnet chuck (2), an annular bottom plate (32) fixedly connected to the lower inner side of the outer annular plate (31), and an inner annular plate (33) fixedly connected to the upper inner side of the annular bottom plate (32). The outer annular plate (31) is fixedly connected to the inner side of the first annular track (311). A water outlet groove (312) is opened above the outer annular plate (31). An annular slot (321) is fixedly connected above the annular bottom plate (32). A positioning rod is provided on the annular slot (321). Four short rods (331) are fixedly connected to the side of the inner annular plate (33) facing the outer annular plate (31). The four short rods (331) are evenly distributed along the circumference of the inner annular plate (33). An arc-shaped short rod (332) is fixedly connected to the end of the short rod (331) away from the inner annular plate (33).

2. The grinding machine tool for machining internal and external cylinders according to claim 1, characterized in that: The cover plate assembly (7) includes an annular cover plate (71) fixedly connected to the upper inner side of the outer annular plate (31), an annular connecting plate (72) fixedly connected to the lower inner side of the annular cover plate (71), a second annular track (73) fixedly provided on the outer side of the annular connecting plate (72), two fixing plates (74) fixedly connected on the outer side of the annular connecting plate (72), and four pressure plates (75) rotatably connected above the annular cover plate (71), the four pressure plates (75) being evenly distributed along the circumference of the annular cover plate (71).

3. A grinding machine tool for machining internal and external cylinders according to claim 2, characterized in that: The annular connecting plate (72) and the first annular track (311) are at the same horizontal level.

4. A grinding machine tool for machining internal and external cylinders according to claim 3, characterized in that: The water spraying mechanism (4) includes a fixed shell (41) fixedly connected to the upper end of the annular cover plate (71). A water pump is installed inside the fixed shell (41). A connecting hose (42) is fixedly installed at the water inlet end of the water pump inside the fixed shell (41). The other end of the connecting hose (42) passes through the fixed shell (41) and is fixedly connected to the water outlet trough (312). A protective shell (43) is installed above the fixed shell (41). A nozzle is installed inside the protective shell (43). The nozzle is a flat fan-shaped nozzle.

5. A grinding machine tool for machining internal and external cylinders according to claim 4, characterized in that: The nozzle height inside the protective shell (43) is on the same horizontal line as the groove position on the electro-permanent magnet chuck (2).

6. A grinding machine tool for machining internal and external cylinders according to claim 5, characterized in that: The first filtration mechanism (5) includes an annular insert plate (51) disposed on one side of the inner wall of the annular connecting plate (72). Multiple arc-shaped through grooves (52) are provided below the annular insert plate (51). A coarse filter screen (53) is fixedly connected in the arc-shaped through grooves (52). Four rubber blocks (54) corresponding to the pressure plate (75) are fixedly connected to the upper end of the annular insert plate (51). A sealing ring is provided at the lower end of the annular insert plate (51). A positioning slot corresponding to the positioning rod on the annular slot (321) is provided below both the sealing ring and the annular insert plate (51).

7. A grinding machine tool for machining internal and external cylinders according to claim 6, characterized in that: The inner wall of the annular insert plate (51) corresponds to the arc-shaped short rod (332), and the outer wall of the annular insert plate (51) corresponds to the annular connecting plate (72).

8. A grinding machine tool for machining internal and external cylinders according to claim 2, characterized in that: The second filtration mechanism (6) includes an outer ring rod (61) rotatably connected in the first ring track (311), an inner ring rod (62) rotatably connected in the second ring track (73), a plurality of connecting blocks (63) fixedly connected between the inner ring rod (62) and the outer ring rod (61), the plurality of connecting blocks (63) being arranged circumferentially along the inner side of the outer ring rod (61), a vibrating plate (64) being fixedly connected above the plurality of connecting blocks (63) on the side near the ring connecting plate (72), and a fine filter screen being fixedly connected between the outer ring rod (61), the inner ring rod (62) and the connecting blocks (63).

9. A grinding machine tool for machining internal and external cylinders according to claim 8, characterized in that: The second filtration mechanism (6) also includes a motor (65) fixedly connected to two opposing connecting blocks (63), and a rotating wheel (66) is fixedly connected to the output end of the motor (65).

10. A grinding machine tool for machining internal and external cylinders according to claim 9, characterized in that: The rotating wheel (66) rolls in contact with the inner wall of the outer annular plate (31), and the vibrating plate (64) corresponds to the fixed plate (74).

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