A polishing device for mechanical fitting machining

Abstract

The application discloses a polishing device for mechanical accessory machining, and relates to the technical field of polishing devices.The device comprises a machine body, a movable cavity formed on one side of the machine body, a polishing and grinding mechanism arranged above the machine body and used for polishing and grinding the mechanical accessory, a conveying mechanism arranged in the movable cavity and used for driving the polishing and grinding mechanism to move, and a spacing adjusting mechanism arranged on one side of the conveying mechanism.The device solves the poor adaptability of traditional equipment through the spacing adjusting mechanism, realizes the automation of the machining process by matching the automatic clamping and overturning structure, reduces manual intervention, simplifies the equipment structure through the design of the multi-mechanism linkage driving, reduces energy consumption, improves the cooperation precision of each action, and is provided with a centralized control panel, so that the device operation is more convenient, the polishing machining precision, efficiency and the versatility of the device are improved, and the modern and diversified polishing machining requirements of the mechanical accessory can be effectively met.

Description

Technical Field

[0001] This invention relates to the field of polishing equipment technology, and in particular to a polishing equipment for machining mechanical parts. Background Technology

[0002] Polishing is a crucial process in the manufacturing of mechanical parts, enhancing their surface precision, smoothness, and performance. It is widely used in the automotive, construction machinery, and precision instrument industries. However, current polishing equipment for mechanical parts still suffers from numerous technical shortcomings, failing to meet the demands of modern processing for high efficiency, precision, and automation. Most existing polishing devices employ fixed-gap grinding structures, making it impossible to flexibly adjust the grinding roller spacing according to different specifications and sizes of mechanical parts. This results in poor adaptability to irregularly shaped or variable-diameter parts, easily leading to insufficient grinding or over-polishing. Some devices can only polish a single plane, requiring manual operation to flip the parts, increasing the workload of operators and increasing the risk of decreased polishing accuracy due to human positioning errors. Furthermore, manual intervention reduces processing efficiency and increases production safety hazards. In addition, the conveying mechanism and clamping and turning mechanism of traditional polishing equipment mostly adopt independent drive systems, which result in complex equipment structure, high energy consumption, and poor linkage and coordination between the mechanisms. The movement of the grinding roller and the clamping and turning action of the accessories are difficult to coordinate precisely, which can easily lead to grinding idle strokes, accessory displacement, etc., affecting the overall polishing quality and processing cycle. At the same time, the transmission belt is prone to loosening due to the adjustment of the grinding roller spacing during the polishing process, which can lead to transmission failure and further reduce the stability and service life of the device. In view of the shortcomings of the existing technology, there is an urgent need to develop a mechanical parts polishing device with adaptive spacing adjustment, automatic clamping and flipping, and multi-mechanism linkage drive, so as to improve the automation level, processing accuracy and equipment versatility of polishing, reduce labor costs and meet the needs of large-scale and diversified mechanical parts processing. Summary of the Invention

[0003] The present invention provides a polishing device for machining mechanical parts, which solves the above-mentioned shortcomings of the prior art.

[0004] To achieve the above objectives, the present invention adopts the following technical solution: A polishing apparatus for machining mechanical parts includes a body and a movable cavity opened on one side of the body, and further includes: The polishing and grinding mechanism, located above the machine body, is used to polish and grind mechanical parts. The conveying mechanism, located inside the movable cavity, is used to drive the polishing and grinding mechanism to move. The spacing adjustment mechanism, located on one side of the conveying mechanism, is used to adjust the spacing of the polishing and grinding mechanism according to the actual size of the mechanical parts. The clamping and flipping mechanism is located on both sides inside the machine body and is used to clamp and fix mechanical parts and automatically flip the polished and ground surfaces. The drive mechanism, located on one side of the machine body, is used to provide power output to the conveying mechanism and the clamping and tilting mechanism.

[0005] Furthermore, the conveying mechanism includes a reciprocating lead screw rotatably connected to the inside of the machine body, a movable plate threaded onto the reciprocating lead screw, a support frame fixedly connected to the top of the movable plate, a guide rod fixedly connected to the inside of the machine body, and threaded holes and guide holes respectively opened on the movable plate corresponding to the reciprocating lead screw and the guide rod. The reciprocating lead screw is threaded inside the threaded hole, and the guide rod is movably sleeved inside the guide hole.

[0006] Furthermore, the polishing mechanism includes a lower polishing roller rotatably connected to the support frame and an upper polishing roller slidably connected. One end of the lower polishing roller is fixedly connected to a first pulley, and one end of the upper polishing roller is fixedly connected to a second pulley corresponding to the first pulley. A first motor is fixedly connected to one side of the bottom of the support frame, and a third pulley is fixedly connected to the output shaft of the first motor. A first moving groove is provided on one side of the support frame corresponding to the upper polishing roller, and one end of the upper polishing roller is movably fitted inside the first moving groove.

[0007] Furthermore, the spacing adjustment mechanism includes a connecting shaft rotatably connected to one side of the support frame. One end of the connecting shaft is fixedly connected to a folding extension arm. One side of the folding extension arm is rotatably connected to a fixed seat. One side of the fixed seat is fixedly connected to a first push rod motor. The output end of the first push rod motor is rotatably connected to the other side of the folding extension arm. A second moving groove is provided on one side of the folding extension arm corresponding to the upper grinding roller. One end of the upper grinding roller is movably fitted inside the second moving groove.

[0008] Furthermore, a sliding rod is fixedly connected to one side of the support frame, a connecting plate is slidably connected to the sliding rod, a connecting rod is rotatably connected to one side of the connecting plate, a fourth pulley is fixedly connected to the connecting rod, the fourth pulley is connected to the third pulley, the second pulley and the first pulley by the same belt, a limit block is fixedly connected to one side of the connecting plate, a third moving groove is opened on one side of the support frame corresponding to the limit block, the limit block is movably sleeved inside the third moving groove, a resistance spring is fixedly connected to one end of the sliding rod, the resistance spring is movably sleeved outside the sliding rod, and one end is fixedly connected to one side of the connecting plate.

[0009] Furthermore, the clamping and flipping mechanism includes transmission rods rotatably connected to both sides of the machine body. One end of each transmission rod is fixedly connected to a placement frame. A second push rod motor is fixedly connected to the outer side of the placement frame. A driven plate is fixedly connected to the output end of the second push rod motor. A clamping plate is fixedly connected to one side of the driven plate. A movable groove is provided on one side of the placement frame corresponding to the driven plate. The driven plate is movably fitted inside the movable groove.

[0010] Furthermore, the drive mechanism includes a second motor fixedly connected to the bottom of the machine body, a drive sprocket fixedly connected to the output end of the second motor, a first one-way sprocket fixedly connected to one end of the transmission rod corresponding to the drive sprocket, a second one-way sprocket fixedly connected to one end of the reciprocating screw corresponding to the drive sprocket, and the same chain connecting the outside of the second one-way sprocket, the first one-way sprocket, and the drive sprocket.

[0011] Furthermore, a control panel is fixedly connected to one side of the machine body, and the control panel is electrically connected to the first motor, the first push rod motor, the second motor, and the second push rod motor.

[0012] Compared with existing technologies, the beneficial effects of this invention are: 1. This invention is equipped with a spacing adjustment mechanism. The first push rod motor drives the folding extension arm, which in turn moves the upper grinding roller up and down. It can accurately adjust the spacing of the grinding roller according to the mechanical parts of different sizes and specifications, adapt to the polishing needs of irregular and variable diameter parts, and avoid the problems of insufficient or excessive polishing. At the same time, the resistance spring and the linkage plate work together to keep the transmission belt tight, prevent transmission failure caused by belt loosening during spacing adjustment, and ensure grinding stability. 2. The clamping and flipping mechanism of the present invention uses a second push rod motor to firmly clamp the parts. With the unidirectional sprocket design of the drive mechanism, the forward and reverse rotation of the second motor can control the conveying movement and the flipping of the parts respectively. There is no need for manual intervention to flip the parts, which reduces the labor intensity of operators, avoids the problem of reduced polishing accuracy caused by manual positioning deviation, and reduces the safety hazards of manual operation. 3. The drive mechanism of this invention uses a single second motor to provide power to the conveying mechanism and the clamping and flipping mechanism, replacing the traditional independent drive system, simplifying the overall structure of the equipment, reducing energy consumption, and the meshing design of the one-way sprocket allows for precise coordination of the movement of the grinding roller, the clamping and flipping of the parts, effectively avoiding grinding idle strokes and parts displacement, improving polishing quality and processing cycle time, and optimizing equipment operating efficiency. In summary, this equipment not only solves the problem of poor adaptability of traditional equipment through the spacing adjustment mechanism, but also automates the processing flow by combining an automatic clamping and flipping structure, reducing manual intervention. The multi-mechanism linkage drive design simplifies the equipment structure, reduces energy consumption, and improves the coordination accuracy of each action. In addition, the centralized control panel makes the equipment more convenient to operate. Overall, it achieves multiple improvements in polishing accuracy, efficiency, and equipment versatility, and can effectively meet the modern and diversified polishing needs of mechanical parts. Attached Figure Description

[0013] Figure 1 This is a first overall top-view three-dimensional structural diagram of a polishing device for machining mechanical parts proposed in this invention; Figure 2 This is a top-view perspective schematic diagram of the second integral three-dimensional structure of a polishing device for machining mechanical parts proposed in this invention; Figure 3 This is a top-view three-dimensional structural diagram of a polishing device for machining mechanical parts proposed in this invention; Figure 4 This is a bottom-view three-dimensional structural diagram of a polishing device for machining mechanical parts proposed in this invention; Figure 5 This is a bottom-view three-dimensional structural diagram of the conveying mechanism and polishing mechanism of a polishing device for machining mechanical parts proposed in this invention. Figure 6 This is a top-view three-dimensional structural diagram of the spacing adjustment mechanism and polishing mechanism of the polishing device for machining mechanical parts proposed in this invention; Figure 7 This is a top-view perspective schematic diagram of the support frame of a polishing device for machining mechanical parts proposed in this invention. Figure 8 This is a bottom-view perspective view of the spacing adjustment mechanism of a polishing device for machining mechanical parts proposed in this invention. Figure 9 This is a top-view perspective view of the clamping and flipping mechanism of a polishing device for machining mechanical parts, as proposed in this invention. Figure 10 This is a top-view perspective schematic diagram of the folding extension arm of a polishing device for machining mechanical parts proposed in this invention. Figure 11 This is a top-view three-dimensional structural diagram of the linkage plate, limiting block, and fourth pulley of a polishing device for machining mechanical parts proposed in this invention.

[0014] In the diagram: 1. Machine body; 2. Movable cavity; 3. Conveying mechanism; 301. Reciprocating screw; 302. Moving plate; 303. Support frame; 304. Guide rod; 4. Polishing and grinding mechanism; 401. Upper grinding roller; 402. Lower grinding roller; 403. First pulley; 404. Second pulley; 405. First motor; 406. Third pulley; 407. Belt; 408. First moving groove; 5. Spacing adjustment mechanism; 501. Connecting shaft; 502. Folding extension arm; 503. Fixed base; 504. First push rod motor; 505. Second moving groove; 506. Slide rod; 507. Connecting plate; 508. Connecting rod; 509. Fourth pulley; 510. Resistance spring; 511. Third moving groove; 512. Limiting block; 6. Clamping and flipping mechanism; 601. Transmission rod; 602. Placement rack; 603. Second push rod motor; 604. Driven plate; 605. Clamping plate; 7. Drive mechanism; 701. Second motor; 702. Drive sprocket; 703. First one-way sprocket; 704. Second one-way sprocket; 705. Chain; 8. Control panel. Detailed Implementation

[0015] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0016] In the description of this invention, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0017] Example: Refer to Figure 1-11 A polishing device for machining mechanical parts includes a body 1 and an active cavity 2 opened on one side of the body 1, and further includes a polishing and grinding mechanism 4, a conveying mechanism 3, a spacing adjustment mechanism 5, a clamping and flipping mechanism 6, and a driving mechanism 7.

[0018] In this invention, the conveying mechanism 3 includes a reciprocating screw 301 rotatably connected to the inside of the machine body 1. A movable plate 302 is threadedly rotatably mounted on the reciprocating screw 301. A support frame 303 is fixedly connected to the top of the movable plate 302. A guide rod 304 is fixedly connected to the inside of the machine body 1. A threaded hole and a guide hole are respectively opened on the movable plate 302 corresponding to the reciprocating screw 301 and the guide rod 304. The reciprocating screw 301 is threadedly fitted inside the threaded hole, and the guide rod 304 is movably fitted inside the guide hole. When the reciprocating screw 301 rotates, it drives the movable plate 302 to move smoothly along the guide rod 304 through the guide hole, and at the same time drives the support frame 303 to move synchronously.

[0019] In this invention, the polishing mechanism 4 includes a lower polishing roller 402 rotatably connected to a support frame 303 and an upper polishing roller 401 slidably connected to it. One end of the lower polishing roller 402 is fixedly connected to a first pulley 403, and one end of the upper polishing roller 401 is fixedly connected to a second pulley 404 corresponding to the first pulley 403. A first motor 405 is fixedly connected to one side of the bottom of the support frame 303, and the output shaft of the first motor 405 is fixedly connected to a third pulley 406. A first moving groove 408 is formed on one side of the support frame 303 corresponding to the upper polishing roller 401, and one end of the upper polishing roller 401 is movably sleeved on the second pulley 404. Inside the movable groove 408, the spacing adjustment mechanism 5 includes a connecting shaft 501 rotatably connected to one side of the support frame 303. One end of the connecting shaft 501 is fixedly connected to a folding extension arm 502. One side of the folding extension arm 502 is rotatably connected to a fixed seat 503. One side of the fixed seat 503 is fixedly connected to a first push rod motor 504. The output end of the first push rod motor 504 is rotatably connected to the other side of the folding extension arm 502. A second movable groove 505 is provided on one side of the folding extension arm 502 corresponding to the upper grinding roller 401. One end of the upper grinding roller 401 is movably fitted inside the second movable groove 505. A sliding rod 506 is fixedly connected to one side of the support frame 303. A connecting plate 507 is slidably connected to the sliding rod 506. A connecting rod 508 is rotatably connected to one side of the connecting plate 507. A fourth pulley 509 is fixedly connected to the connecting rod 508. The outside of the fourth pulley 509 is connected to the third pulley 406, the second pulley 404, and the first pulley 403 via the same belt 407. A limit block 512 is fixedly connected to one side of the connecting plate 507. A third moving groove 511 is provided on one side of the support frame 303 corresponding to the limit block 512. The limit block 512 is movably fitted inside the third moving groove 511. In the part, a resistance spring 510 is fixedly connected to one end of the slide rod 506. The resistance spring 510 is movably sleeved on the outside of the slide rod 506, and one end is fixedly connected to one side of the connecting plate 507. The first motor 405 starts and drives the rotation of the third pulley 406. The rotation of the third pulley 406 drives the rotation of the second pulley 404, the first pulley 403 and the fourth pulley 509 through the belt 407. The synchronous rotation of the first pulley 403 and the second pulley 404 drives the synchronous rotation of the lower grinding roller 402 and the upper grinding roller 401, thereby synchronously grinding and polishing the outer surface of the mechanical parts. It is worth mentioning that when the first push rod motor 504 starts, it drives the folding extension arm 502 to extend and retract, thereby driving the upper grinding roller 401 to move smoothly up and down through the second moving groove 505 and the first moving groove 408. This allows for adjustment of the distance between the upper grinding roller 401 and the workpiece according to the actual dimensions of the machined parts. Simultaneously, as the upper grinding roller 401 moves, the fourth pulley 509 moves synchronously via the belt 407. The movement of the fourth pulley 509 is smoothly achieved along the slide bar 506 via the connecting plate 507. At the same time, the movement of the connecting plate 507 is limited by the resistance spring 510, thus ensuring that the belt 407 remains taut at all times.

[0020] In this invention, the clamping and flipping mechanism 6 includes transmission rods 601 rotatably connected to both sides of the machine body 1. One end of the transmission rod 601 is fixedly connected to a placement frame 602. A second push rod motor 603 is fixedly connected to the outer side of the placement frame 602. A driven plate 604 is fixedly connected to the output end of the second push rod motor 603. A clamping plate 605 is fixedly connected to one side of the driven plate 604. A movable groove is provided on one side of the placement frame 602 corresponding to the driven plate 604. The driven plate 604 is movably fitted inside the movable groove. The placement frame 602 is used to place the mechanical parts to be processed. When the second push rod motor 603 is started, it drives the driven plate 604 to move along the movable groove, and at the same time drives the clamping plate 605 to move synchronously to clamp and fix the mechanical parts to be processed.

[0021] In this invention, the drive mechanism 7 includes a second motor 701 fixedly connected to the bottom of the body 1. A drive sprocket 702 is fixedly connected to the output end of the second motor 701. A first one-way sprocket 703 is fixedly connected to one end of the transmission rod 601 at the location corresponding to the drive sprocket 702. A second one-way sprocket 704 is fixedly connected to one end of the reciprocating screw 301 at the location corresponding to the drive sprocket 702. The second one-way sprocket 704 is connected to the first one-way sprocket 703 and the drive sprocket 702 by the same chain 705. When the second motor 701 starts in the forward direction, it drives the drive sprocket. 702 rotates in the forward direction, thereby driving the chain 705 to rotate in the forward direction, and simultaneously driving the first one-way sprocket 703 and the second one-way sprocket 704 to rotate synchronously. Since the first one-way sprocket 703 and the second one-way sprocket 704 mesh with the transmission rod 601 and the reciprocating screw 301 in opposite directions, when the first one-way sprocket 703 rotates in the forward direction, it does not mesh with the transmission rod 601, thereby keeping the transmission rod 601 in a stationary state. At this time, when the second one-way sprocket 704 rotates in the forward direction, it meshes with the reciprocating screw 301, thereby driving the rotation of the reciprocating screw 301. When it is necessary to flip the processed parts, the first push rod motor 504 starts and drives the upper grinding roller 401 to move away from the workpiece and ensure sufficient flipping space. After separation, the first push rod motor 504 stops working. When the second motor 701 starts in reverse, it drives the sprocket 702 to rotate in the opposite direction. This causes the first one-way sprocket 703 and the second one-way sprocket 704 to rotate in the opposite direction via the chain 705. Due to the change in the direction of rotation, the first one-way sprocket 703 engages with the transmission rod 601 when it rotates in the opposite direction, thereby causing the placement frame 602 to flip and simultaneously causing the mechanical parts to be processed to flip. Meanwhile, the second one-way sprocket 704 does not engage with the reciprocating screw 301, keeping the reciprocating screw 301 stationary. After the flipping is completed, the first push rod motor 504 starts again, driving the upper grinding roller 401 to move again and come into contact with the surface of the part to be processed.

[0022] In this invention, a control panel 8 is fixedly connected to one side of the body 1. The control panel 8 is electrically connected to the first motor 405, the first push rod motor 504, the second motor 701, and the second push rod motor 603.

[0023] Working Principle: This polishing device for machining mechanical parts uses the machine body as its basic carrier. Centralized electrical control of each mechanism is achieved through a control panel. The drive mechanism provides power output to the conveying mechanism and the clamping and tilting mechanism. Together with the polishing and grinding mechanism and the spacing adjustment mechanism, it completes the automated, high-precision polishing of mechanical parts. The specific working principle of each mechanism is as follows: Accessory clamping and fixing: The mechanical parts to be polished are placed in the placement frame of the clamping and flipping mechanism. The second push rod motor is started through the control panel. Its output end pushes the driven plate to move smoothly along the movable groove of the placement frame. The driven plate drives the clamping plate to move synchronously until the clamping plate is in close contact with the surface of the parts, so as to achieve a firm clamping of mechanical parts of different sizes and prevent the parts from shifting during the polishing process and affecting the processing accuracy.

[0024] Grinding roller spacing adjustment: Based on the external dimensions and polishing requirements of the mechanical parts, the first push rod motor is started through the control panel. Its output end pushes the folding extension arm to extend or retract around the connecting shaft. The folding extension arm drives the upper grinding roller to move smoothly up and down along the first moving groove of the support frame through the second moving groove, so as to achieve precise adjustment of the distance between the upper and lower grinding rollers and adapt to the polishing requirements of different specifications of parts. During the adjustment of the grinding roller spacing, the movement of the upper grinding roller is driven by the belt to move the fourth pulley synchronously. The fourth pulley drives the connecting plate to slide along the slide bar through the connecting rod. The limiting block on one side of the connecting plate moves along the third moving groove to ensure the stability of the moving plate. At the same time, the resistance spring on the slide bar forms an elastic limit on the connecting plate, always keeping the belt taut to avoid belt slack causing transmission failure and ensuring synchronous transmission of the grinding roller.

[0025] Polishing and grinding are linked with the conveying process: The first motor is started, and its output shaft drives the third pulley to rotate. The third pulley transmits power to the first pulley, the second pulley and the fourth pulley through the belt, so as to realize the synchronous rotation of the four pulleys. This, in turn, drives the lower grinding roller and the upper grinding roller to rotate synchronously at high speed, forming a polished surface. Simultaneously, the second motor is started and its forward rotation is controlled. The output end of the second motor drives the drive sprocket to rotate in the forward direction. The drive sprocket drives the first one-way sprocket and the second one-way sprocket to rotate in the forward direction through the chain. Since the meshing direction of the first one-way sprocket and the transmission rod is opposite, the first one-way sprocket rotates freely at this time, the transmission rod remains stationary, while the second one-way sprocket meshes with the reciprocating screw in the forward direction, driving the reciprocating screw to rotate. When the reciprocating screw rotates, the moving plate engages with the reciprocating screw through the threaded hole and moves smoothly horizontally along the guide rod inside the machine body. The moving plate drives the top support frame and polishing mechanism to move synchronously, so that the rotating polishing roller makes a reciprocating translational motion along the surface of the mechanical parts, thereby achieving comprehensive and uniform polishing of the parts surface.

[0026] Automatic flip-polishing of accessories: After one side of the mechanical parts is polished, the first push rod motor is started through the control panel to drive the upper grinding roller to move upward, so that the grinding roller is separated from the surface of the parts, leaving enough space for flipping. Then, the second motor is controlled to rotate in the opposite direction, driving the sprocket to rotate in the opposite direction via the chain. At this time, the second one-way sprocket rotates in the opposite direction with the reciprocating screw, the reciprocating screw remains stationary, the polishing and grinding mechanism stops moving, and the first one-way sprocket meshes with the transmission rod in the opposite direction, driving the transmission rod to rotate. The transmission rod drives the placement frame and the mechanical parts that are clamped and fixed to rotate synchronously, realizing the automatic switching of the polished surface of the parts. After flipping, the first push rod motor is started again, driving the upper polishing roller to move downwards until it comes into close contact with the new polished surface of the part. At the same time, the second motor is controlled to rotate in the forward direction, and the polishing mechanism resumes its reciprocating translational motion to polish the other side of the part until the entire polishing process of the part is completed.

[0027] Process resetting and material unloading: After the parts are polished, the first motor and the second motor are turned off in sequence via the control panel, the polishing roller stops rotating and the polishing mechanism is reset to the initial position; Then, the second push rod motor is started, which drives the clamping plate to move in the opposite direction, releasing the clamp on the part. The operator can then unload the part, and the device enters the next processing cycle.

[0028] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A polishing apparatus for machining mechanical parts, comprising a body (1) and a movable cavity (2) opened on one side of the body (1), characterized in that, Also includes: The polishing and grinding mechanism (4) is located above the machine body (1) and is used to polish and grind mechanical parts. The conveying mechanism (3), located inside the movable cavity (2), is used to drive the polishing and grinding mechanism (4) to move. The spacing adjustment mechanism (5) is located on one side of the conveying mechanism (3) and is used to adjust the spacing of the polishing and grinding mechanism (4) according to the actual size of the mechanical parts. The clamping and flipping mechanism (6) is located on both sides inside the machine body (1) and is used to clamp and fix mechanical parts and automatically flip the polished and ground surfaces. The drive mechanism (7) is located on one side of the body (1) and is used to provide power output to the conveying mechanism (3) and the clamping and flipping mechanism (6).

2. The polishing device for machining mechanical parts according to claim 1, characterized in that, The conveying mechanism (3) includes a reciprocating screw (301) rotatably connected to the inside of the machine body (1). A movable plate (302) is threaded on the reciprocating screw (301). A support frame (303) is fixedly connected to the top of the movable plate (302). A guide rod (304) is fixedly connected inside the machine body (1). A threaded hole and a guide hole are respectively opened on the movable plate (302) at the reciprocating screw (301) and the guide rod (304). The reciprocating screw (301) is threaded inside the threaded hole, and the guide rod (304) is movably sleeved inside the guide hole.

3. The polishing device for machining mechanical parts according to claim 2, characterized in that, The polishing mechanism (4) includes a lower polishing roller (402) rotatably connected to the support frame (303) and an upper polishing roller (401) slidably connected. One end of the lower polishing roller (402) is fixedly connected to a first pulley (403), and one end of the upper polishing roller (401) is fixedly connected to a second pulley (404) corresponding to the first pulley (403). A first motor (405) is fixedly connected to one side of the bottom of the support frame (303), and a third pulley (406) is fixedly connected to the output shaft of the first motor (405). A first moving groove (408) is opened on one side of the support frame (303) corresponding to the upper polishing roller (401), and one end of the upper polishing roller (401) is movably sleeved inside the first moving groove (408).

4. The polishing device for machining mechanical parts according to claim 3, characterized in that, The spacing adjustment mechanism (5) includes a connecting shaft (501) rotatably connected to one side of the support frame (303). One end of the connecting shaft (501) is fixedly connected to a folding extension arm (502). One side of the folding extension arm (502) is rotatably connected to a fixed seat (503). One side of the fixed seat (503) is fixedly connected to a first push rod motor (504). The output end of the first push rod motor (504) is rotatably connected to the other side of the folding extension arm (502). A second moving groove (505) is provided on one side of the folding extension arm (502) corresponding to the upper grinding roller (401). One end of the upper grinding roller (401) is movably sleeved inside the second moving groove (505).

5. A polishing device for machining mechanical parts according to claim 3, characterized in that, A sliding rod (506) is fixedly connected to one side of the support frame (303). A connecting plate (507) is slidably connected to the sliding rod (506). A connecting rod (508) is rotatably connected to one side of the connecting plate (507). A fourth pulley (509) is fixedly connected to the connecting rod (508). The fourth pulley (509) is connected to the third pulley (406), the second pulley (404), and the first pulley (403) by the same belt (407). A limiting block (512) is fixedly connected to one side of the linkage plate (507), and a third moving groove (511) is provided on one side of the support frame (303) corresponding to the limiting block (512). The limiting block (512) is movably sleeved inside the third moving groove (511). A resistance spring (510) is fixedly connected to one end of the slide rod (506). The resistance spring (510) is movably sleeved outside the slide rod (506), and one end is fixedly connected to one side of the linkage plate (507).

6. A polishing device for machining mechanical parts according to claim 2, characterized in that, The clamping and flipping mechanism (6) includes transmission rods (601) rotatably connected to both sides of the machine body (1). One end of the transmission rod (601) is fixedly connected to a placement frame (602). A second push rod motor (603) is fixedly connected to one side of the placement frame (602). A driven plate (604) is fixedly connected to the output end of the second push rod motor (603). A clamping plate (605) is fixedly connected to one side of the driven plate (604). A movable groove is provided on one side of the placement frame (602) corresponding to the driven plate (604). The driven plate (604) is movably fitted inside the movable groove.

7. A polishing apparatus for machining mechanical parts according to claim 6, characterized in that, The drive mechanism (7) includes a second motor (701) fixedly connected to the bottom of the body (1). The output end of the second motor (701) is fixedly connected to a drive sprocket (702). One end of the transmission rod (601) is fixedly connected to a first one-way sprocket (703) at the drive sprocket (702). One end of the reciprocating screw (301) is fixedly connected to a second one-way sprocket (704) at the drive sprocket (702). The outside of the second one-way sprocket (704) is connected to the first one-way sprocket (703) and the drive sprocket (702) by the same chain (705).

8. A polishing apparatus for machining mechanical parts according to claim 1, characterized in that, A control panel (8) is fixedly connected to one side of the body (1). The control panel (8) is electrically connected to the first motor (405), the first push rod motor (504), the second motor (701), and the second push rod motor (603).

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