Grinding mechanism for mechanical part machining

Abstract

The utility model discloses a grinding mechanism for machining mechanical parts, which comprises a power case and a round pedestal arranged on the outer wall of the top end of the power case, a downwards sunken round rotating groove is arranged in the round pedestal, a machining turntable is arranged in the round rotating groove, the top end of the machining turntable is higher than the top end of the round pedestal, and the top end of the machining turntable is connected with the power case. Connection type scrap collecting and storing devices are additionally arranged at the left end and the rear end of a power machine box of the grinding mechanism for machining the mechanical parts, an air blower in an air blower box provides wind power, and the wind power is sprayed to a machining area of a grinding wheel disc and a workpiece to be machined through a long-strip-shaped air nozzle at the rear end of a hollow air collecting long pipe; the metal chippings generated in the grinding machining process are blown backwards, the metal water tank enters the chipping collecting cover at the rear end of the power machine box, the chipping collecting cover collects the metal chippings, and the collected metal chippings are conveyed into the chipping storage box at the bottom to be stored.

Description

Technical Field

[0001] This utility model belongs to the technical field of mechanical manufacturing and processing, and specifically relates to a grinding mechanism for processing mechanical parts. Background Technology

[0002] In the field of mechanical parts processing, grinding is a crucial step in improving the precision and surface quality of parts and has always received considerable attention. With the continuous development of the machinery manufacturing industry, the requirements for precision, efficiency, and environmental protection in mechanical parts processing are increasingly stringent. Traditional grinding mechanisms for mechanical parts processing have revealed some problems in actual operation. During processing, the grinding wheel generates a large amount of metal shavings when grinding the workpiece. These shavings fly everywhere, not only scattering around the processing area and affecting the cleanliness of the working environment, but also potentially entering other precision components of the grinding mechanism, accelerating component wear, reducing equipment lifespan, and in severe cases, even causing equipment failure, affecting the continuity and stability of production.

[0003] Furthermore, some existing debris collection devices are insufficient in terms of collection efficiency and range. They cannot effectively collect all metal debris from various locations within the processing area, leaving some debris behind, making subsequent cleaning cumbersome and increasing labor and time costs. Moreover, due to the inflexible structural design of the collection devices, they are difficult to adjust to different processing conditions and part sizes, resulting in poor adaptability. Utility Model Content

[0004] The purpose of this utility model is to provide a grinding mechanism for machining mechanical parts, in order to solve the problems mentioned in the background art, which are that a large amount of metal chips are generated during the grinding of mechanical parts, which are scattered everywhere and affect the working environment. They may also enter precision parts, accelerate wear, shorten equipment life and even cause failure, affecting production. In addition, the existing chip collection devices have insufficient collection efficiency and range, and the chip residue makes cleaning cumbersome. Furthermore, the structure is not flexible enough and it is difficult to adapt to different working conditions and part sizes.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a grinding mechanism for machining mechanical parts, comprising a power housing and a circular platform disposed on the outer wall of the top of the power housing. The circular platform has a downwardly recessed circular groove inside, and a machining turntable is disposed in the circular groove. The top of the machining turntable is higher than the top of the circular platform. Multiple clamping screw holes are equidistantly arranged inside the outer circular part at the center of the top of the machining turntable. A grinding wheel is disposed directly above the machining turntable. A circular fixing plate is disposed on the top of the grinding wheel, and the grinding wheel is fixedly connected to the circular fixing plate by multiple screws. A chip collection and storage device is connected to the top left end and the rear end of the power housing.

[0006] Preferably, the debris collection and storage device includes a lifting bracket, a hand-tightened height-fixing bolt, a metal lifting sleeve, a hollow air-collecting tube, and a long strip-shaped jet nozzle. The metal lifting sleeve is located at the front left corner of the top of the power unit, and a screw hole is provided inside the center of the front end of the metal lifting sleeve. A hand-tightened height-fixing bolt is threaded into the screw hole. The lifting bracket is inserted into the metal lifting sleeve. A through hole is provided inside the top of the lifting bracket. A hollow air-collecting tube is inserted and fixed into the through hole. The hollow air-collecting tube extends horizontally to the right and is located above the top outer wall of the front end of the power unit. A long strip-shaped jet nozzle is provided at the rear end of the hollow air-collecting tube.

[0007] Preferably, the jet nozzle is horizontal and pointing backward, the length of the jet nozzle is greater than the diameter of the processing turntable, the lifting bracket can move up and down in the metal lifting sleeve, the lifting bracket cannot rotate in the metal lifting sleeve, the up and down movement of the lifting bracket can change the jet position height of the jet nozzle, and the hand-tightened height fixing bolt can fix the height of the lifting bracket after tightening.

[0008] Preferably, the debris collection and storage device further includes a blower housing and an air supply hose. The blower housing is fixed to the outer wall of the left end of the power housing by screws. An air inlet is provided at the bottom end of the blower housing, and an air outlet is provided at the front end of the blower housing. An air inlet connecting pipe head is provided at the left end of the hollow air collection pipe and on the outer wall of the rear end. An air supply hose is connected between the air outlet and the air inlet connecting pipe head, and the length of the air supply hose is greater than the length of the lifting bracket.

[0009] Preferably, the debris collection and storage device further includes a debris storage box, a debris collection cover, a disassembly insert plate, and an insert plate fixing sleeve. The insert plate fixing sleeve is horizontally fixed to the outer wall of the rear end of the power unit. The top of the insert plate fixing sleeve is open. A disassembly insert plate is inserted into the insert plate fixing sleeve. The debris storage box is welded to the top of the disassembly insert plate. The debris storage box is close to the outer wall of the rear end of the power unit, and the top of the debris storage box is open. The outer wall of the top of the debris storage box is flush with the outer wall of the top of the power unit. A debris collection cover is provided on the top of the debris storage box.

[0010] Preferably, the debris collection and storage device further includes a debris blocking net. The bottom and front ends of the debris collection cover are both open. The debris collection cover communicates with the interior of the debris storage box through the bottom opening. A rectangular window is provided inside the rear end of the debris collection cover. A debris blocking net is fixed in the rectangular window. The debris blocking net can block the metal debris channel, and the debris blocking net can allow air to pass through normally.

[0011] Preferably, the circular base is symmetrically provided with metal columns on the left and right sides. The bottom ends of the two metal columns are fixed to the top outer wall of the power unit box by flanges and screws. The top ends of the two metal columns are connected to top seats. A control box is also fixed to the top outer wall of the right end of the power unit box.

[0012] Preferably, a shaft hole is provided inside the center of the top seat, and a lifting cylinder is fixed to the center of the top of the top seat by a flange and screws. A cylinder plunger is provided inside the lifting cylinder, and a cylinder shaft is fixed to the bottom end of the cylinder plunger. The bottom end of the cylinder shaft passes through the shaft hole, and the bottom end of the cylinder shaft is fixed to the top of the circular fixed plate by a flange and screws.

[0013] Preferably, the cylinder shaft can drive the circular fixed plate to move up and down. The center of the top seat has lifting guide holes on both the left and right sides. A metal lifting guide rod is inserted into each of the two lifting guide holes. The bottom ends of the two metal lifting guide rods are fixed to the outer wall of the top of the circular fixed plate. When the cylinder shaft drives the circular fixed plate to move up and down, the two metal lifting guide rods will move up and down synchronously in the lifting guide holes.

[0014] Compared with the prior art, the present invention provides a grinding mechanism for machining mechanical parts, which has the following advantages:

[0015] This invention adds a connected chip collection and storage device to the left end and rear end of the power unit of the grinding mechanism for machining mechanical parts. This device uses a blower inside the blower housing to provide airflow, which is then sprayed through a long, thin nozzle at the rear end of a hollow air collection pipe onto the machining area between the grinding wheel and the workpiece. This causes the metal chips generated during grinding to be blown backward, allowing the metal to enter the chip collection hood at the rear end of the power unit. The chip collection hood collects the metal chips and transports them to a chip storage box at the bottom. Specifically, the device uses an adjustable-height long, thin nozzle, allowing for flexible adjustment of the spray position. Its horizontal rearward design and length exceeding the diameter of the machining turntable effectively blow the metal chips generated during grinding backward. The blower housing provides stable airflow, ensuring powerful spray. The chip collection hood, in conjunction with a chip blocking net, effectively prevents metal chips from entering other areas while ensuring normal airflow, collecting the metal chips into the chip storage box. The design of the insert plate fixing sleeve and the disassembly insert plate facilitates the disassembly and cleaning of the scrap storage box. This device achieves efficient collection and storage of metal scrap, keeps the processing environment clean, and reduces the impact on equipment and personnel. Attached Figure Description

[0016] Figure 1 This is a frontal three-dimensional structural diagram of a grinding mechanism for machining mechanical parts according to the present invention.

[0017] Figure 2This is a front view schematic diagram of a grinding mechanism for machining mechanical parts according to the present invention.

[0018] Figure 3 This is a frontal perspective three-dimensional structural diagram of the debris collection and storage device of this utility model.

[0019] Figure 4 This is a three-dimensional disassembly diagram of the debris collection and storage device of this utility model.

[0020] In the diagram: 1. Power unit housing; 2. Debris collection and storage device; 3. Circular platform; 4. Circular rotary groove; 5. Machining turntable; 6. Metal column; 7. Top seat; 8. Lifting guide hole; 9. Metal lifting guide rod; 10. Lifting cylinder; 11. Cylinder shaft; 12. Circular fixed plate; 13. Grinding wheel; 14. Fixture mounting screw hole; 15. Control box; 16. Lifting bracket; 17. Hand-tightened height-fixing bolt; 18. Metal lifting sleeve; 19. Hollow air collection pipe; 20. Long strip-shaped jet nozzle; 21. Blower housing; 22. Debris storage box; 23. Debris collection cover; 24. Debris blocking net; 25. Air supply hose; 26. Disassembly and assembly insert plate; 27. Insert plate fixing sleeve. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] This utility model provides, for example Figure 1-4The grinding mechanism for machining mechanical parts shown includes a power housing 1 and a circular platform 3 mounted on the outer wall of the top of the power housing 1. The circular platform 3 has a recessed circular groove 4 inside, within which a machining turntable 5 is mounted. The top of the machining turntable 5 extends above the top of the circular platform 3. Multiple clamping screw holes 14 are equidistantly arranged on the outer circular side of the top center of the machining turntable 5. The power housing 1 provides power support and a stable mounting base for the entire grinding mechanism. The circular platform 3, located at the top of the power housing 1, provides rotation space for the machining turntable 5 through its internal circular groove 4. The top of the machining turntable 5 extends above the circular platform 3, facilitating the mounting of the mechanical parts to be processed. The multiple clamping screw holes 14 on the outer circular side of the top center are used to fix clamps, ensuring a secure clamping of the parts and guaranteeing accurate part positioning during machining. The machining turntable 5... A grinding wheel 13 is positioned directly above the grinding wheel 13, with a circular fixed plate 12 at its top. The grinding wheel 13 is fixedly connected to the circular fixed plate 12 by multiple screws. Metal columns 6 are symmetrically arranged on the left and right sides of the circular base 3. The bottom ends of the two metal columns 6 are fixed to the top outer wall of the power housing 1 by flanges and screws. Top seats 7 are connected to the top ends of the two metal columns 6. A control box 15 is also fixed to the top outer wall of the right end of the power housing 1. In the above, the circular rotating groove 4 provides stable rotation support for the machining turntable 5, ensuring that the machining turntable 5 can move smoothly and steadily around its own central axis. This cooperative structure can not only effectively reduce the vibration of the machining turntable 5 during rotation, but also make the grinding force evenly distributed during the machining process, which is conducive to improving the flatness and smoothness of the grinding surface, and at the same time extending the service life of the machining turntable 5 and related components.

[0023] like Figure 1 and Figure 2As shown, a shaft hole is provided inside the center of the top seat 7. A lifting cylinder 10 is fixed to the center of the top of the top seat 7 by a flange and screws. A cylinder plunger is provided inside the lifting cylinder 10. A cylinder shaft 11 is fixed to the bottom end of the cylinder plunger, and the bottom end of the cylinder shaft 11 passes through the shaft hole. The bottom end of the cylinder shaft 11 is fixed to the top of the circular fixed plate 12 by a flange and screws. The lifting cylinder 10 on the top seat 7 is the key component for controlling the up and down movement of the grinding wheel 13. The cylinder plunger drives the cylinder shaft 11 to move up and down. The cylinder shaft 11 passes through the shaft hole in the center of the top seat 7 and is connected to the circular fixed plate 12, thereby realizing the up and down movement of the circular fixed plate 12 and the grinding wheel 13. The cylinder shaft 11 can drive the circular fixed plate 12 to move up and down. Lifting guide holes 8 are provided inside the left and right sides of the center of the top seat 7. Metal lifting guide rods 9 are inserted into the two lifting guide holes 8. The bottom ends of the two metal lifting guide rods 9 are fixed to the circular fixed plate 12. 2. On the top outer wall, when the cylinder shaft 11 drives the circular fixed disk 12 to move up and down, the two metal lifting guide rods 9 will move up and down synchronously in the lifting guide hole 8. During the lifting process, the lifting guide hole 8 and the metal lifting guide rods 9 on the left and right sides of the center of the top seat 7 play an important role. The bottom ends of the two metal lifting guide rods 9 are fixed to the top outer wall of the circular fixed disk 12. When the cylinder shaft 11 drives the circular fixed disk 12 to move up and down, the metal lifting guide rods 9 slide up and down synchronously in the lifting guide hole 8, which plays a guiding and stabilizing role, ensuring the smoothness and accuracy of the up and down movement of the circular fixed disk 12, thereby ensuring that the grinding wheel 13 can accurately perform grinding operations on the mechanical parts located on the machining turntable 5 during the processing. The control box 15 on the top outer wall of the right end of the power box 1 is used to control the operation of the entire grinding mechanism, including the operation control of components such as the lifting cylinder 10, so as to realize the effective control of the grinding process of mechanical parts.

[0024] like Figure 1 and Figure 2As shown, in the grinding mechanism for machining mechanical parts, the power housing 1 plays the role of the power core, housing a motor that provides the initial power for the entire machining process. The power output from the motor is reduced in speed by a reducer, a crucial process. By setting a reasonable reduction ratio, the high speed and low torque of the motor can be converted into a low speed and high torque power output suitable for machining requirements. A metal drive shaft is installed at the bottom of the machining turntable 5. The power reduced by the reducer is transmitted to the metal drive shaft, which in turn drives the machining turntable 5 to rotate. This transmission method ensures that the machining turntable 5 can operate stably and accurately, providing a stable foundation for subsequent machining operations. When the operator firmly fixes the workpiece to be processed using a fixture... After being placed on the machining turntable 5, the turntable 5 will start to rotate at a set uniform speed under the drive of the motor. At this time, the grinding wheel 13 located directly above the machining turntable 5 will start to play its role. The lifting cylinder 10 on the top seat 7 will be activated, and the cylinder plunger will drive the cylinder shaft 11 to move downward, thereby causing the circular fixed plate 12 connected to the cylinder shaft 11 and the grinding wheel 13 to descend synchronously. As the grinding wheel 13 gradually descends and comes into contact with the workpiece to be processed, the high-speed rotation of the grinding wheel 13 and the uniform rotation of the workpiece driven by the machining turntable 5 will cooperate with each other. During the relative motion between the two, the grinding material on the grinding wheel 13 will cut and grind the surface of the workpiece to be processed, gradually removing excess material, so that the workpiece can achieve the expected dimensional accuracy and surface finish requirements.

[0025] like Figure 1 , Figure 3 and Figure 4As shown, the top left end and rear end of the power unit 1 are connected to a debris collection and storage device 2. The debris collection and storage device 2 includes a lifting bracket 16, a hand-tightened height-fixing bolt 17, a metal lifting sleeve 18, a hollow air collection tube 19, and a long strip-shaped jet nozzle 20. The metal lifting sleeve 18 is located at the top left front corner of the power unit 1, and a screw hole is provided inside the center of the front end of the metal lifting sleeve 18. The hand-tightened height-fixing bolt 17 is threaded into the screw hole. The lifting bracket 16 is inserted into the metal lifting sleeve 18. A through hole is provided inside the top end of the lifting bracket 16, and a hollow air collection tube 19 is inserted and fixed into the through hole. The hollow air collection tube 19 extends horizontally to the right and is located above the top outer wall of the front end of the power unit 1. The rear end of the hollow air collection tube 19 is provided with a... The elongated jet nozzle 20 sprays air horizontally backward. The length of the elongated jet nozzle 20 is greater than the diameter of the machining turntable 5. This design ensures that the jetting range covers the entire machining area. The lifting bracket 16 can move up and down within the metal lifting sleeve 18. The lifting bracket 16 cannot rotate within the metal lifting sleeve 18. The up and down movement of the lifting bracket 16 can change the jetting position height of the elongated jet nozzle 20. After the hand-tightened height-fixing bolt 17 is tightened, it can fix the height of the lifting bracket 16. By adjusting the height of the lifting bracket 16, the jetting position height of the elongated jet nozzle 20 can be changed to adapt to different machining needs. For example, the jetting can be optimized according to the location characteristics of the chips generated during grinding of workpieces of different sizes or shapes.

[0026] like Figure 1 , Figure 3 and Figure 4 As shown, the debris collection and storage device 2 also includes a blower box 21 and an air supply hose 25. The blower box 21 is fixed to the outer wall of the left end of the power box 1 by screws. An air inlet is provided at the bottom end of the blower box 21, and an air outlet is provided at the front end of the blower box 21. An air inlet connecting pipe head is provided at the left end of the hollow air collection pipe 19 and on the outer wall of the rear end. An air supply hose 25 is connected between the air outlet and the air inlet connecting pipe head. The length of the air supply hose 25 is greater than the length of the lifting bracket 16. This ensures that the air supply hose 25 will not be damaged due to stretching when the height of the lifting bracket 16 is adjusted, and can continuously and stably supply air. When the blower box 21 is working, it draws in air and compresses it, and then delivers it to the hollow air collection pipe 19 through the air supply hose 25. Finally, it is sprayed horizontally backward from the long strip-shaped jet nozzle 20, forming an airflow in the processing area between the grinding wheel 13 and the workpiece to be processed, blowing the metal debris generated during the grinding process backward.

[0027] like Figure 1 , Figure 3 and Figure 4As shown, the debris collection and storage device 2 also includes a debris storage box 22, a debris collection cover 23, a detachable insert plate 26, and an insert plate fixing sleeve 27. The insert plate fixing sleeve 27 is horizontally fixed to the outer wall of the rear end of the power unit 1. The top of the insert plate fixing sleeve 27 is open, and the detachable insert plate 26 is inserted into the insert plate fixing sleeve 27. The debris storage box 22 is welded to the top of the detachable insert plate 26. The debris storage box 22 is tightly attached to the outer wall of the rear end of the power unit 1, and the top of the debris storage box 22 is open. The top outer wall of the debris storage box 22 is flush with the top outer wall of the power unit housing 1. A debris collecting cover 23 is provided at the top of the debris storage box 22. The debris collecting and storage device 2 also includes a debris blocking net 24. The bottom and front ends of the debris collecting cover 23 are open. The debris collecting cover 23 communicates with the interior of the debris storage box 22 through the bottom opening. A rectangular window is provided inside the rear end of the debris collecting cover 23. The debris blocking net 24 is fixed in the rectangular window and can prevent metal from entering. The chip channel and chip blocking net 24 allow air to pass through normally. When the airflow from the elongated jet nozzle 20 blows the metal chips backward, the metal chips enter the chip collection hood 23. The chip blocking net 24 can prevent the metal chips from spreading forward and polluting the surrounding environment or entering other parts of the equipment, but it can still allow air to pass through normally, ensuring smooth airflow. The blocked metal chips fall into the chip storage box 22 under the action of gravity for storage, realizing the effective collection and storage of metal chips generated by grinding, keeping the processing environment clean. After the chip storage box 22 has stored a lot of metal chips, it can be pulled out directly upward. During the upward pulling process, the disassembly plate 26 disengages from the plate fixing slot, so that the metal chips stored in the chip storage box 22 can be poured out. After completion, the disassembly plate 26 is reinserted into the plate fixing slot, thus quickly completing the installation and disassembly operation of the chip storage box 22.

[0028] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A grinding mechanism for machining mechanical parts, comprising a power housing (1) and a circular platform (3) disposed on the outer wall of the top of the power housing (1), wherein the circular platform (3) has a downwardly recessed circular groove (4), and a machining turntable (5) is disposed in the circular groove (4), wherein the top of the machining turntable (5) is higher than the top of the circular platform (3), characterized in that: The machining turntable (5) has multiple clamping screw holes (14) evenly spaced inside the outer circular part at the top center of the top. A grinding wheel (13) is provided directly above the machining turntable (5). A circular fixed plate (12) is provided at the top of the grinding wheel (13), and the grinding wheel (13) is fixedly connected to the circular fixed plate (12) by multiple screws. A chip collection and storage device (2) is connected to the top left end and rear end of the power housing (1). The debris collection and storage device (2) includes a lifting bracket (16), a hand-tightened height-fixing bolt (17), a metal lifting sleeve (18), a hollow gas collection tube (19), and a long strip-shaped jet nozzle (20). The metal lifting sleeve (18) is located at the front left corner of the top of the power unit (1), and a screw hole is provided inside the center of the front end of the metal lifting sleeve (18). A hand-tightened height-fixing bolt (17) is threaded into the screw hole. The lifting bracket (16) is inserted into the metal lifting sleeve (18). A through hole is provided inside the top of the lifting bracket (16), and a hollow gas collection tube (19) is inserted and fixed into the through hole. The hollow gas collection tube (19) extends horizontally to the right and is located above the top outer wall of the front end of the power unit (1). A long strip-shaped jet nozzle (20) is provided at the rear end of the hollow gas collection tube (19).

2. The grinding mechanism for machining mechanical parts according to claim 1, characterized in that: The jet direction of the elongated jet nozzle (20) is horizontal and backward. The length of the elongated jet nozzle (20) is greater than the diameter of the processing turntable (5). The lifting bracket (16) can move up and down in the metal lifting sleeve (18). The lifting bracket (16) cannot rotate in the metal lifting sleeve (18). The up and down movement of the lifting bracket (16) can change the jet position height of the elongated jet nozzle (20). After the hand-tightened height fixing bolt (17) is tightened, it can fix the height of the lifting bracket (16).

3. The grinding mechanism for machining mechanical parts according to claim 2, characterized in that: The debris collection and storage device (2) also includes a blower box (21) and an air supply hose (25). The blower box (21) is fixed to the outer wall of the left end of the power box (1) by screws. An air inlet is provided at the bottom end of the blower box (21), and an air outlet is provided at the front end of the blower box (21). An air inlet connecting pipe head is provided at the left end of the hollow air collection pipe (19) and on the outer wall of the rear end. An air supply hose (25) is connected between the air outlet and the air inlet connecting pipe head, and the length of the air supply hose (25) is greater than the length of the lifting bracket (16).

4. A grinding mechanism for machining mechanical parts according to claim 3, characterized in that: The debris collection and storage device (2) further includes a debris storage box (22), a debris collection cover (23), a disassembly insert plate (26), and an insert plate fixing sleeve (27). The insert plate fixing sleeve (27) is horizontally fixed on the outer wall of the rear end of the power housing (1). The top of the insert plate fixing sleeve (27) is open. The disassembly insert plate (26) is inserted into the insert plate fixing sleeve (27). The debris storage box (22) is welded to the top of the disassembly insert plate (26). The debris storage box (22) is close to the outer wall of the rear end of the power housing (1), and the top of the debris storage box (22) is open. The outer wall of the top of the debris storage box (22) is flush with the outer wall of the top of the power housing (1). The debris collection cover (23) is provided on the top of the debris storage box (22).

5. A grinding mechanism for machining mechanical parts according to claim 4, characterized in that: The debris collection and storage device (2) also includes a debris blocking net (24). The bottom and front ends of the debris collection cover (23) are both open. The debris collection cover (23) is connected to the inside of the debris storage box (22) through the bottom opening. A rectangular window is provided inside the rear end of the debris collection cover (23). The debris blocking net (24) is fixed in the rectangular window. The debris blocking net (24) can block the metal debris channel, and the debris blocking net (24) can allow air to pass through normally.

6. A grinding mechanism for machining mechanical parts according to claim 1, characterized in that: The circular base (3) is symmetrically provided with metal columns (6) on the left and right sides. The bottom ends of the two metal columns (6) are fixed to the top outer wall of the power box (1) by flanges and screws. The top ends of the two metal columns (6) are connected to the top seat (7). The top outer wall of the right end of the power box (1) is also fixed with a control box (15).

7. A grinding mechanism for machining mechanical parts according to claim 6, characterized in that: The top seat (7) has a shaft hole inside its center. A lifting cylinder (10) is fixed at the top center of the top of the top seat (7) by a flange and screws. A cylinder plunger is provided inside the lifting cylinder (10). A cylinder shaft (11) is fixed at the bottom of the cylinder plunger. The bottom of the cylinder shaft (11) passes through the shaft hole. The bottom of the cylinder shaft (11) is fixed at the top of the circular fixed plate (12) by a flange and screws.

8. A grinding mechanism for machining mechanical parts according to claim 7, characterized in that: The cylinder shaft (11) can drive the circular fixed plate (12) to move up and down. The center of the top seat (7) is provided with lifting guide holes (8) on both the left and right sides. Metal lifting guide rods (9) are inserted into the two lifting guide holes (8). The bottom ends of the two metal lifting guide rods (9) are fixed to the outer wall of the top of the circular fixed plate (12). When the cylinder shaft (11) drives the circular fixed plate (12) to move up and down, the two metal lifting guide rods (9) will move up and down synchronously in the lifting guide holes (8).

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