Automobile piston rod polishing device capable of achieving automatic feeding

Abstract

The invention discloses an automobile piston rod polishing device capable of achieving automatic feeding, relates to the technical field of automobile part machining equipment, and provides the following scheme that the automobile piston rod polishing device comprises a machine body, and the machine body internally comprises a feeding mechanism arranged on one side of the interior of the machine body and used for automatic feeding of automobile piston rods; and the switching and fixing mechanism is located on the other side of the interior of the machine body, located on one side of the feeding mechanism and used for conveying the automobile piston rods subjected to automatic feeding in a grinding area and switching the automobile piston rods in a finished product collecting area after grinding, and a transmission assembly is arranged between the switching and fixing mechanism and the feeding mechanism. According to the full-automatic piston rod grinding machine, materials can be continuously and automatically taken from the material containing box, manual intervention is not needed, full-automatic feeding of piston rods is achieved, continuous operation of feeding, grinding and discharging is achieved through the switching fixing mechanism, it is guaranteed that the interval time of the working procedures is shortened, and the grinding precision is guaranteed; the energy consumption and the occupied area of equipment are reduced.

Description

Technical Field

[0001] This invention relates to the field of automotive parts processing equipment technology, and in particular to a grinding device for automotive piston rods with automatic feeding capability. Background Technology

[0002] In automobile manufacturing, the piston rod, as a crucial component of key parts such as automotive dampers, has a vital impact on vehicle performance and safety due to its machining accuracy and surface quality. Currently, automotive piston rods typically require grinding during processing to remove surface defects such as burrs and oxide layers, improving surface smoothness and precision. However, existing grinding devices have many problems in practical applications. Traditional grinding devices mostly rely on manual feeding, which is labor-intensive, and the speed and accuracy of manual feeding are difficult to guarantee, resulting in low processing efficiency. Furthermore, human factors can easily cause damage to the piston rod or unstable processing quality. Therefore, developing a grinding device for automotive piston rods that can achieve automatic feeding and high grinding precision is of significant practical importance. Summary of the Invention

[0003] The present invention provides an automatic feeding grinding device for automotive piston rods, which solves the above-mentioned shortcomings of the prior art.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] An automatic feeding grinding device for automotive piston rods includes a body, the interior of which includes:

[0006] The feeding mechanism, located on one side inside the machine body, is used for automatic feeding of automotive piston rods;

[0007] The switching and fixing mechanism is located on the other side of the machine body and on the side of the feeding mechanism. It is used to switch the grinding area of ​​the automatically fed car piston rod and the finished product collection area after grinding. A transmission component is provided between the switching and fixing mechanism and the feeding mechanism.

[0008] The grinding mechanism, located on the side of the switching and fixing mechanism, is used to grind the surface of the automotive piston rod whose position has been switched and fixed.

[0009] The drive assembly, located on the external side of the machine body, is used to provide power output to the switching and fixing mechanism.

[0010] Furthermore, the feeding mechanism includes a first connecting rod and a second connecting rod that are symmetrically rotatably connected to one side of the machine body. A first sprocket is fixedly connected to the first connecting rod, and a second sprocket is fixedly connected to the second connecting rod at the position corresponding to the first sprocket. The first sprocket and the second sprocket are externally connected to the same transmission chain.

[0011] Furthermore, multiple connecting plates are fixedly connected to the conveyor chain, and arc-shaped placement frames are symmetrically fixedly connected to the multiple connecting plates. A material placement box is fixedly connected to one side of the top of the machine body at the top of the conveyor chain. A first moving groove is opened at the bottom of the material placement box corresponding to the arc-shaped placement frame, and the arc-shaped placement frame moves through the interior of the first moving groove.

[0012] Furthermore, the switching and fixing mechanism includes a transmission rod rotatably connected to the other side of the machine body. A material actuating frame is fixedly connected to the transmission rod. Multiple first motors are arrayed and fixed on the material actuating frame. A drive rod is fixedly connected to the output end of the first motor. A first bevel gear is fixedly connected to one end of the drive rod. An arc-shaped clamping block is rotatably connected to the material actuating frame. An abutment plate is fixedly connected to one side of the arc-shaped clamping block. A driven gear is fixedly connected to one side of the arc-shaped clamping block between the abutment plates. The arc-shaped clamping block engages and abuts with the material actuating frame.

[0013] Furthermore, a fixed frame is fixedly connected to one side of the material actuating frame, and a short shaft is rotatably connected to the fixed frame. A second bevel gear is fixedly connected to one end of the short shaft at the location corresponding to the first bevel gear. One side of the second bevel gear meshes with the first bevel gear for transmission. A connecting gear is fixedly connected to the other end of the short shaft at the location corresponding to the driven gear. One side of the connecting gear meshes with the driven gear for transmission.

[0014] Furthermore, the transmission assembly includes a first pulley fixedly connected to one end of the first connecting rod, a second pulley fixedly connected to one side of the transmission rod corresponding to the first pulley, a first belt externally connected to the second pulley and the first pulley, and a through hole opened on one side of the machine body corresponding to the first belt, through which the first belt movably passes.

[0015] Furthermore, the grinding mechanism includes a reciprocating lead screw rotatably connected to the inside of the machine body. A movable frame is threaded onto the reciprocating lead screw. A mounting hole is provided above the movable frame. A circular grinding stone is rotatably connected inside the mounting hole. The circular grinding stone and the material agitator at the highest point are at the same center. A toothed ring is fixedly connected to one side of the circular grinding stone. A motor frame is fixedly connected to one side of the movable frame. A second motor is fixedly connected to one side of the motor frame. A drive gear is fixedly connected to the output shaft of the second motor. One side of the drive gear meshes with the toothed ring for transmission.

[0016] Furthermore, a guide rod is fixedly connected to one side of the machine body, and a threaded hole and a guide hole are respectively opened below the moving frame. The reciprocating screw is threaded inside the threaded hole, and the guide rod is movably sleeved inside the guide hole. A third motor is fixedly connected to one side of the machine body, and a fifth pulley is fixedly connected to the output shaft of the third motor. A sixth pulley is fixedly connected to one end of the reciprocating screw at the position corresponding to the fifth pulley. The sixth pulley and the fifth pulley are externally connected by the same third belt.

[0017] Furthermore, the drive assembly includes a drive motor fixedly connected to the other side of the machine body, the output shaft of the drive motor is fixedly connected to a third pulley, one end of the transmission rod is fixedly connected to a fourth pulley corresponding to the third pulley, and the fourth pulley and the third pulley are externally connected by the same second belt.

[0018] Furthermore, a second moving groove is provided on one side of the bottom of the machine body corresponding to the material moving frame, the material moving frame moves through the second moving groove, a discharge port is provided on one side of the machine body, a discharge hopper is fixedly connected to the discharge port, and a support frame is fixedly connected to the bottom of the machine body.

[0019] Compared with existing technologies, the beneficial effects of this invention are:

[0020] 1. This invention automatically feeds, switches positions, clamps and fixes, and rapidly grinds automotive piston rods by installing a feeding mechanism, a switching and fixing mechanism, and a grinding mechanism. The feeding mechanism, in cooperation with an arc-shaped placement frame via a conveyor chain, can continuously pick up materials from the material placement box without manual intervention. The switching and fixing mechanism achieves station switching through the rotation of the material shifting frame. After grinding, the finished product is automatically sent to the discharge hopper, achieving full automation. Meanwhile, the grinding mechanism achieves rigid fixation of the workpiece through the cooperation of an arc-shaped clamping block and an abutment plate. The circular grinding stone is concentrically set with the workpiece, and the moving frame is driven by a reciprocating screw to achieve uniform axial grinding.

[0021] 2. This invention provides power output and transmission to the equipment by installing a drive assembly and a transmission assembly. The transmission assembly links the feeding mechanism with the switching and fixing mechanism, matching the feeding speed with the switching speed (the ratio of the conveyor chain movement speed to the material shifting frame rotation speed is 1:3), thus avoiding workpiece accumulation or idling. It can accommodate piston rods of different specifications with diameters of 10-50mm and lengths of 100-500mm, and can accommodate various workpieces by adjusting the opening of the arc-shaped clamping block.

[0022] In summary, this equipment can automatically and continuously pick up materials from the material placement box without manual intervention, achieving fully automatic feeding of the piston rod. By switching the fixed mechanism, it can achieve continuous operation of "feeding-grinding-unloading", ensuring a shorter process interval and guaranteeing grinding accuracy. All mechanisms work together through transmission components, reducing energy consumption and minimizing the equipment's footprint. Attached Figure Description

[0023] Figure 1 This is a first top-view perspective three-dimensional structural diagram of an automatic feeding grinding device for automotive piston rods proposed in this invention.

[0024] Figure 2 This is a second top-view perspective schematic diagram of the overall structure of a grinding device for automotive piston rods with automatic feeding capability proposed in this invention.

[0025] Figure 3 This is a three-dimensional top view of the overall structure of a grinding device for automotive piston rods with automatic feeding capability proposed in this invention.

[0026] Figure 4 This is a third top-view perspective schematic diagram of the overall structure of a grinding device for automotive piston rods with automatic feeding capability proposed in this invention.

[0027] Figure 5 This is a bottom-view perspective view of the switching and fixing mechanism and the feeding mechanism of the automatic feeding grinding device for automobile piston rods proposed in this invention.

[0028] Figure 6 This is a first top-view perspective view of the switching and fixing mechanism of an automatic feeding grinding device for automotive piston rods proposed in this invention.

[0029] Figure 7 This is a top-view three-dimensional structural diagram of the first sprocket, the second sprocket, and the reciprocating lead screw of an automatic feeding grinding device for automotive piston rods proposed in this invention.

[0030] Figure 8 This is a top-view three-dimensional structural diagram of the conveyor chain, connecting plate, and arc-shaped placement frame of an automatic feeding grinding device for automotive piston rods proposed in this invention.

[0031] Figure 9 This is a top-view three-dimensional structural diagram of the arc-shaped clamping block and the abutment plate of the grinding device for automotive piston rods that can automatically feed materials according to the present invention.

[0032] Figure 10 This is a top-view perspective view of the grinding mechanism of an automatic feeding grinding device for automotive piston rods proposed in this invention.

[0033] Figure 11This is a second top-view perspective structural diagram of the switching and fixing mechanism of an automatic feeding grinding device for automotive piston rods proposed in this invention.

[0034] Figure 12 This invention provides an automatic feeding grinding device for automotive piston rods. Figure 11 A magnified three-dimensional structural diagram of a portion at point A.

[0035] In the diagram: 1. Machine body; 2. Feeding mechanism; 201. First connecting rod; 202. Second connecting rod; 203. First sprocket; 204. Second sprocket; 205. Conveyor chain; 206. Connecting plate; 207. Arc-shaped placement rack; 208. Material placement box; 209. First moving slot; 3. Switching and fixing mechanism; 301. Transmission rod; 302. Material moving rack; 303. First motor; 304. Drive rod; 305. First bevel gear; 306. Fixing frame; 307. Short shaft; 308. Linking gear; 309. Second bevel gear; 310. Arc-shaped clamping block; 311. 1. Driven gear; 312. Abutment plate; 4. Grinding mechanism; 401. Reciprocating lead screw; 402. Moving frame; 403. Guide rod; 404. Second motor; 405. Drive gear; 406. Circular grinding stone; 407. Gear ring; 408. Third motor; 409. Fifth pulley; 410. Sixth pulley; 411. Third belt; 5. Transmission assembly; 501. First pulley; 502. Second pulley; 503. First belt; 6. Drive assembly; 601. Drive motor; 602. Third pulley; 603. Fourth pulley; 604. Second belt. Detailed Implementation

[0036] 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.

[0037] 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.

[0038] Example, refer to Figure 1-12 A grinding device for automotive piston rods with automatic feeding capability includes a body 1. The interior of the body 1 includes a feeding mechanism 2, a switching and fixing mechanism 3, a grinding mechanism 4, and a drive assembly 6.

[0039] A transmission assembly 5 is provided between the switching fixing mechanism 3 and the feeding mechanism 2;

[0040] The feeding mechanism 2 includes a first connecting rod 201 and a second connecting rod 202 that are symmetrically rotatably connected to one side of the machine body 1. A first sprocket 203 is fixedly connected to the first connecting rod 201, and a second sprocket 204 is fixedly connected to the second connecting rod 202 at the same position as the first sprocket 203. The first sprocket 203 and the second sprocket 204 are externally connected to the same transmission chain 205. The rotation of the first connecting rod 201 drives the rotation of the first sprocket 203, and at the same time drives the transmission chain 205 to perform a smooth circular motion around the second sprocket 204.

[0041] The switching and fixing mechanism 3 includes a transmission rod 301 rotatably connected to the other side of the machine body 1. A material actuating frame 302 is fixedly connected to the transmission rod 301. Multiple first motors 303 are arrayed and fixed on the material actuating frame 302. A drive rod 304 is fixedly connected to the output end of the first motor 303. A first bevel gear 305 is fixedly connected to one end of the drive rod 304. An arc-shaped clamping block 310 is rotatably connected to the material actuating frame 302. An abutment plate 312 is fixedly connected to one side of the arc-shaped clamping block 310. A driven gear 311 is fixedly connected to one side of the arc-shaped clamping block 310 between the abutment plates 312. The arc-shaped clamping block 310 meshes and abuts with the material actuating frame 302. The start of the first motor 303 drives the drive rod 304 to rotate, and at the same time drives the first bevel gear 305 to rotate.

[0042] It is worth mentioning that the inner side of the arc-shaped clamping block 310 is provided with anti-slip teeth, which engage with the positioning teeth on the material moving frame 302 to ensure that there is no relative slippage during clamping;

[0043] The grinding mechanism 4 includes a reciprocating screw 401 rotatably connected to the inside of the machine body 1. A movable frame 402 is threaded onto the reciprocating screw 401. A mounting hole is provided above the movable frame 402. A circular grinding stone 406 is rotatably connected inside the mounting hole. The circular grinding stone 406 and the material agitator 302 at the highest point are at the same center. A gear ring 407 is fixedly connected to one side of the circular grinding stone 406. A motor frame is fixedly connected to one side of the movable frame 402. A second motor 404 is fixedly connected to one side of the motor frame. A drive gear 405 is fixedly connected to the output shaft of the second motor 404. One side of the drive gear 405 meshes with the gear ring 407 for transmission. The start of the second motor 404 drives the drive gear 405 to rotate, and at the same time drives the gear ring 407 to rotate. The rotation of the gear ring 407 drives the circular grinding stone 406 to rotate. The rotation of the circular grinding stone 406 performs surface grinding on the automobile piston rod.

[0044] It is worth mentioning that the circular grinding stone 406 and the material moving frame 302 at the highest point are at the same center, and the coaxiality error of the center does not exceed 0.02mm, ensuring that the gap between the workpiece and the circular grinding stone is uniform (0.1~0.3mm) during grinding. The moving speed of the moving frame 402 is set between 0.1 and 0.5m / s to ensure the uniformity of grinding on the surface of the automobile piston rod.

[0045] The drive assembly 6 includes a drive motor 601 fixedly connected to the other side of the body 1. The output shaft of the drive motor 601 is fixedly connected to a third pulley 602. One end of the transmission rod 301 is fixedly connected to a fourth pulley 603 corresponding to the third pulley 602. The fourth pulley 603 and the third pulley 602 are externally connected by the same second belt 604. The start of the drive motor 601 drives the third pulley 602 to rotate, and at the same time drives the fourth pulley 603 to rotate through the second belt 604. The rotation of the fourth pulley 603 drives the transmission rod 301 to rotate synchronously.

[0046] In this invention, multiple connecting plates 206 are fixedly connected in an array on the conveyor chain 205, and arc-shaped placement frames 207 are symmetrically fixedly connected on the multiple connecting plates 206. A material placement box 208 is fixedly connected to the top side of the machine body 1 at the top of the conveyor chain 205. A first moving groove 209 is opened at the bottom of the material placement box 208 corresponding to the arc-shaped placement frame 207. The arc-shaped placement frame 207 moves through the interior of the first moving groove 209. The circular motion of the conveyor chain 205 drives the connecting plates 206 and the arc-shaped placement frame 207 to move synchronously. After the arc-shaped placement frame 207 moves through the first moving groove 209, the car piston rod inside the material placement box 208 is moved out of the interior of the material placement box 208 and indirectly conveyed.

[0047] In this invention, a fixed frame 306 is fixedly connected to one side of the material agitator 302, and a short shaft 307 is rotatably connected to the fixed frame 306. A second bevel gear 309 is fixedly connected to one end of the short shaft 307 at the location corresponding to the first bevel gear 305. One side of the second bevel gear 309 meshes with the first bevel gear 305 for transmission. A connecting gear 308 is fixedly connected to the other end of the short shaft 307 at the location corresponding to the driven gear 311. One side of the connecting gear 308 meshes with the driven gear 311 for transmission. When the arc-shaped placement frame 207 transports the car piston rod to be ground to the right side of the machine body 1, the car piston rod is peeled off from the arc-shaped placement frame 207 by the material agitator 302.

[0048] In this invention, the transmission assembly 5 includes a first pulley 501 fixedly connected to one end of the first connecting rod 201, a second pulley 502 fixedly connected to one side of the transmission rod 301 corresponding to the first pulley 501, a first belt 503 externally connected to the second pulley 502 and the first pulley 501, and a through hole opened on one side of the machine body 1 corresponding to the first belt 503, the first belt 503 movably passing through the through hole.

[0049] In this invention, a guide rod 403 is fixedly connected to one side of the inner side of the machine body 1. A threaded hole and a guide hole are respectively opened below the moving frame 402. The reciprocating screw 401 is threaded inside the threaded hole, and the guide rod 403 is movably sleeved inside the guide hole. A third motor 408 is fixedly connected to one side of the machine body 1. A fifth pulley 409 is fixedly connected to the output shaft of the third motor 408. A sixth pulley 410 is fixedly connected to one end of the reciprocating screw 401 corresponding to the fifth pulley 409. The sixth pulley 410 and the fifth pulley 409 are externally connected by the same third belt 411. When the third motor 408 starts, it drives the fifth pulley 409 to rotate. At the same time, the third belt 411 drives the sixth pulley 410 to rotate. The rotation of the sixth pulley 410 drives the reciprocating screw 401 to rotate synchronously. The rotation of the reciprocating screw 401 drives the moving frame 402 to move smoothly back and forth along the guide rod 403.

[0050] In this invention, a second moving groove is provided on one side of the bottom of the machine body 1 corresponding to the material moving frame 302. The material moving frame 302 moves through the second moving groove. A discharge port is provided on one side of the machine body 1. A discharge hopper is fixedly connected to the discharge port. A support frame is fixedly connected to the bottom of the machine body 1. The polished car piston rod is conveyed and collected through the discharge port.

[0051] Working principle: When in use, multiple automotive piston rods to be ground are placed in the material placement box 208 in an orderly manner, and only one automotive piston rod can be peeled and conveyed at the bottom of the material placement box 208.

[0052] When the drive motor 601 starts, it drives the third pulley 602 to rotate, and at the same time drives the fourth pulley 603 to rotate through the second belt 604. The rotation of the fourth pulley 603 drives the transmission rod 301 to rotate. The rotation of the transmission rod 301 synchronously drives the material moving frame 302 and the second pulley 502 to rotate. The rotation of the second pulley 502 drives the first pulley 501 and the first connecting rod 201 to rotate synchronously. The rotation of the first connecting rod 201 drives the first sprocket 203 to rotate synchronously. The rotation of the first sprocket 203 drives the conveyor chain 205 to move around the second sprocket 204 in a circular motion, and at the same time drives the connecting plate 206 and the arc-shaped placement frame 207 to move synchronously in a circular motion. When the arc-shaped placement frame 207 passes the first moving groove 209 at the bottom of the material placement box 208, it pushes the car piston rod at the bottom of the material placement box 208 outward. At the same time, the car piston rod inside the material placement box 208 will continue to fall to the bottom in sequence, waiting for the next push of the arc-shaped placement frame 207.

[0053] When the arc-shaped placement rack 207 moves to the other side of the machine body 1, one of the material actuating racks 302 moves parallel to the arc-shaped placement rack 207. After transferring the car piston rod on the arc-shaped placement rack 207 to the material actuating rack 302, the first motor 303 starts and drives the first bevel gear 305 to rotate via the drive rod 304. The rotation of the first bevel gear 305 meshes with the second bevel gear 309, which in turn drives the short shaft 307 to rotate. The rotation of the short shaft 307 drives the connecting gear 308 to rotate, which in turn meshes with the driven gear 311. The rotation of wheel 311 drives the swing of arc-shaped clamping block 310. The swing of arc-shaped clamping block 310 and the cooperation of material moving frame 302 clamp and fix the car piston rod to be polished. At the same time, the abutment plate 312 abuts and limits one end of the car piston rod to prevent displacement during polishing. Meanwhile, the continuous rotation of transmission rod 301 drives material moving frame 302 to move the car piston rod away from arc-shaped placement frame 207. When the material moving frame 302 holding the car piston rod to be polished reaches the highest point, so that the car piston rod and the circular polishing stone 406 are in the same center, the drive motor 601 stops running.

[0054] At this time, the second motor 404 starts and drives the drive gear 405 to rotate. The rotation of the drive gear 405 drives the gear ring 407 to rotate synchronously, and at the same time drives the circular grinding stone 406 to rotate circumferentially. Simultaneously, the third motor 408 starts and drives the fifth pulley 409 to rotate. At the same time, the third belt 411 drives the sixth pulley 410 to rotate. The rotation of the sixth pulley 410 drives the reciprocating screw 401 to rotate synchronously. The rotation of the reciprocating screw 401 drives the moving frame 402 to move smoothly back and forth along the guide rod 403. The reciprocating movement of the moving frame 402 drives the circular grinding stone 406 to perform longitudinal full grinding treatment on the car piston rod. When the moving frame 402 has completed one reciprocating movement and the circular grinding stone 406 is away from the end of the car piston rod, the third motor 408 stops working, so that the reciprocating screw 401 remains stationary.

[0055] At this time, the drive motor 601 continues to operate, driving the transmission rod 301 to rotate, which in turn drives the material agitator 302 to continue rotating, thereby conveying the polished car piston rod. Simultaneously, the first motor 303 starts in reverse, driving the drive rod 304 to rotate in reverse, which in turn drives the short shaft 307 to rotate in reverse, causing the arc-shaped clamping block 310 to move away from the material agitator 302 and release the car piston rod from its clamping position. When the material agitator 302 moves to the discharge port, the car piston rod is discharged from the machine body 1 through the discharge port by its own weight. It is worth mentioning that all the first motors 303 in this invention are independent operating units.

[0056] 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 grinding device for automotive piston rods with automatic feeding capability, comprising a body (1), characterized in that, The interior of the body (1) includes: The feeding mechanism (2) is located on one side inside the machine body (1) and is used for automatic feeding of automobile piston rods; The switching fixing mechanism (3) is located on the other side of the interior of the machine body (1) and on the side of the feeding mechanism (2). It is used to transport the grinding area of ​​the automotive piston rod after automatic feeding and switch the grinding finished product collection area. A transmission component (5) is provided between the switching fixing mechanism (3) and the feeding mechanism (2). The grinding mechanism (4) is located on one side of the switching and fixing mechanism (3) and is used to grind the surface of the automobile piston rod that is switched and fixed in position. The drive assembly (6) is located on the outside of the body (1) and is used to provide power output to the switching and fixing mechanism (3).

2. The automatic feeding grinding device for automotive piston rods according to claim 1, characterized in that, The feeding mechanism (2) includes a first connecting rod (201) and a second connecting rod (202) that are symmetrically rotatably connected to one side of the machine body (1). A first sprocket (203) is fixedly connected to the first connecting rod (201), and a second sprocket (204) is fixedly connected to the second connecting rod (202) at the position corresponding to the first sprocket (203). The first sprocket (203) and the second sprocket (204) are externally connected to the same transmission chain (205).

3. The automatic feeding grinding device for automotive piston rods according to claim 2, characterized in that, Multiple connecting plates (206) are fixedly connected in an array on the conveyor chain (205). Arc-shaped placement racks (207) are symmetrically fixedly connected on the multiple connecting plates (206). A material placement box (208) is fixedly connected to the top of the conveyor chain (205) on one side of the machine body (1). A first moving groove (209) is opened at the bottom of the material placement box (208) corresponding to the arc-shaped placement rack (207). The arc-shaped placement rack (207) moves through the interior of the first moving groove (209).

4. The automatic feeding grinding device for automotive piston rods according to claim 2, characterized in that, The switching and fixing mechanism (3) includes a transmission rod (301) rotatably connected to the other side of the machine body (1). A material actuating frame (302) is fixedly connected to the transmission rod (301). Multiple first motors (303) are arrayed and fixed on the material actuating frame (302). A drive rod (304) is fixedly connected to the output end of the first motor (303). A first bevel gear (305) is fixedly connected to one end of the drive rod (304). An arc-shaped clamp (310) is rotatably connected to the material actuating frame (302). An abutment plate (312) is fixedly connected to one side of the arc-shaped clamp (310). A driven gear (311) is fixedly connected between the abutment plate (312) and one side of the arc-shaped clamp (310). The arc-shaped clamp (310) meshes and abuts with the material actuating frame (302).

5. The automatic feeding grinding device for automotive piston rods according to claim 4, characterized in that, A fixed frame (306) is fixedly connected to one side of the material actuating frame (302). A short shaft (307) is rotatably connected to the fixed frame (306). A second bevel gear (309) is fixedly connected to one end of the short shaft (307) at the location corresponding to the first bevel gear (305). One side of the second bevel gear (309) meshes with the first bevel gear (305) for transmission. A connecting gear (308) is fixedly connected to the other end of the short shaft (307) at the location corresponding to the driven gear (311). One side of the connecting gear (308) meshes with the driven gear (311) for transmission.

6. The automatic feeding grinding device for automotive piston rods according to claim 4, characterized in that, The transmission assembly (5) includes a first pulley (501) fixedly connected to one end of the first connecting rod (201). A second pulley (502) is fixedly connected to one side of the transmission rod (301) at the location corresponding to the first pulley (501). The second pulley (502) is externally connected to the first pulley (501) by a first belt (503). A through hole is provided on one side of the machine body (1) at the location corresponding to the first belt (503), and the first belt (503) moves through the through hole.

7. A grinding device for automotive piston rods with automatic feeding capability according to claim 4, characterized in that, The grinding mechanism (4) includes a reciprocating lead screw (401) rotatably connected to the inside of the machine body (1). A movable frame (402) is threaded onto the reciprocating lead screw (401). An installation hole is provided above the movable frame (402). A circular grinding stone (406) is rotatably connected inside the installation hole. The circular grinding stone (406) and the material agitator (302) at the highest point are at the same center. A gear ring (407) is fixedly connected to one side of the circular grinding stone (406). A motor frame is fixedly connected to one side of the movable frame (402). A second motor (404) is fixedly connected to one side of the motor frame. A drive gear (405) is fixedly connected to the output shaft of the second motor (404). One side of the drive gear (405) meshes with the gear ring (407) for transmission.

8. A grinding device for automotive piston rods with automatic feeding capability according to claim 7, characterized in that, A guide rod (403) is fixedly connected to one side of the inner side of the machine body (1). A threaded hole and a guide hole are respectively opened below the moving frame (402). The reciprocating screw (401) is threaded inside the threaded hole, and the guide rod (403) is movably sleeved inside the guide hole. A third motor (408) is fixedly connected to one side of the machine body (1). The output shaft of the third motor (408) is fixedly connected to a fifth pulley (409). A sixth pulley is fixedly connected to one end of the reciprocating screw (401) at the position corresponding to the fifth pulley (409). 410), the sixth pulley (410) and the fifth pulley (409) are externally connected by the same third belt (411), the third motor (408) is fixedly connected to one side of the machine body (1), the output shaft of the third motor (408) is fixedly connected to the fifth pulley (409), one end of the reciprocating screw (401) is fixedly connected to the sixth pulley (410) corresponding to the fifth pulley (409), and the sixth pulley (410) and the fifth pulley (409) are externally connected by the same third belt (411).

9. A grinding device for automotive piston rods with automatic feeding capability according to claim 4, characterized in that, The drive assembly (6) includes a drive motor (601) fixedly connected to the other side of the body (1). The output shaft of the drive motor (601) is fixedly connected to a third pulley (602). One end of the transmission rod (301) is fixedly connected to a fourth pulley (603) corresponding to the third pulley (602). The fourth pulley (603) and the third pulley (602) are externally connected by the same second belt (604).

10. A grinding device for automotive piston rods with automatic feeding capability according to claim 4, characterized in that, A second moving groove is provided on one side of the bottom of the machine body (1) corresponding to the material moving frame (302). The material moving frame (302) moves through the second moving groove. A discharge port is provided on one side of the machine body (1). A discharge hopper is fixedly connected to the discharge port. A support frame is fixedly connected to the bottom of the machine body (1).

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