An automatic ball pin rotation detector

Abstract

This application relates to an automatic rotation detection machine for ball pins, belonging to the technical field of finished product detection equipment. It includes a base, on one side of the base there is a conveying mechanism for conveying the ball pin assembly, at the upper end of the base there is a clamping member for clamping the metal sleeve, the base is provided with a connecting rod for connecting the joint ball pin, and the base is provided with a driving member for driving the connecting rod to rotate. This application has the effect of reducing the working intensity of workers.

Description

Technical Field

[0001] This application relates to the technical field of finished product inspection equipment, and in particular to an automatic ball pin rotation detector. Background Art

[0002] Currently, ball pins are mainly used as connecting parts for automotive steering and various mechanical steering. After the processed ball pin assembly is completed, it is necessary to detect whether it can rotate. If the ball pin assembly can rotate, it proves that the ball pin assembly is a qualified product. If the ball pin assembly cannot rotate, it is an unqualified product and needs to be sent back for reprocessing.

[0003] Currently, it is usually the worker who holds the spherical joint pin and the metal sleeve and rotates them in opposite directions respectively to determine whether the ball pin assembly is qualified.

[0004] Regarding the above related technologies, the inventor believes that manually rotating the ball pin assembly by workers increases the working intensity of the workers. Summary of the Invention

[0005] In order to reduce the working intensity of workers, this application provides an automatic ball pin rotation detector.

[0006] This application provides an automatic ball pin rotation detector, adopting the following technical solutions:

[0007] An automatic ball pin rotation detector includes a base. One side of the base is provided with a conveying mechanism for conveying the ball pin assembly. The upper end of the base is provided with a clamping member for clamping the metal sleeve. The base is provided with a connecting rod for connecting the spherical joint pin, and the base is provided with a driving member for driving the connecting rod to rotate.

[0008] By adopting the above technical solutions, the conveying mechanism conveys the ball pin assembly to the clamping member. The clamping member clamps the metal sleeve of the ball pin assembly. The connecting rod connects the spherical joint pin. The driving member drives the connecting rod to rotate. The connecting rod drives the spherical joint pin to rotate. If the spherical joint pin rotates, it proves that the ball pin assembly is qualified. If the spherical joint pin does not rotate, it proves that the ball pin assembly is unqualified, which is beneficial to reducing the phenomenon of workers manually rotating the ball pin assembly, and thus beneficial to reducing the working intensity of workers.

[0009] Optionally, the driving member includes a connecting ring and a driving motor. A cavity is formed inside the base. The driving motor is fixedly connected to the cavity of the base. The driving motor is vertically arranged. The output shaft of the driving motor is coaxially connected to the connecting ring. Two transverse moving cylinders for driving the connecting rod to move horizontally are arranged inside the connecting ring. The two transverse moving cylinders are arranged oppositely. The piston rod of the transverse moving cylinder is coaxially connected to the connecting rod. One ends of the two connecting rods far away from the transverse moving cylinders are movably connected.

[0010] By adopting the above technical solution, when the joint ball pin needs to be rotated, the conveying mechanism conveys the ball pin assembly between the two transverse cylinders. Then, the transverse cylinders are started, and the piston rods of the transverse cylinders extend, driving the connecting rod to move relatively. The connecting rod is arranged through the connecting hole of the joint ball pin. Next, the driving motor is started, and the output shaft of the driving motor drives the connecting ring to rotate. The connecting ring drives the connecting rod to rotate, which is convenient for driving the joint ball pin to rotate, and thus convenient for judging whether the ball pin assembly is qualified, making the judgment process more convenient.

[0011] Optionally, the output shaft of the driving motor is coaxially connected with a support disk. The support disk is horizontally arranged, and a lifting cylinder for driving the connecting ring to lift is connected to the lower surface of the support disk. The lifting cylinder is vertically arranged, the cylinder body of the lifting cylinder is fixedly connected with the support disk, and the piston rod of the lifting cylinder passes through one end of the support disk and is connected to the lower end of the connecting ring.

[0012] By adopting the above technical solution, the support disk supports the connecting ring. When ball pin assemblies of different lengths need to be detected, the lifting cylinder is started, and the piston rod of the lifting cylinder moves up and down, thereby driving the connecting ring to move up and down, which is beneficial to changing the height of the connecting rod, and thus convenient for driving ball pin assemblies of different lengths to rotate, which is beneficial to increasing the scope of application.

[0013] Optionally, the clamping member includes two clamping plates and two clamping cylinders for driving the clamping plates to move transversely. The clamping cylinders are connected to the upper end of the base and are horizontally arranged. The clamping plates are provided with grooves adapted to the metal sleeves, and an elastic layer is fixedly connected to the grooves of the clamping plates.

[0014] By adopting the above technical solution, when the conveying mechanism conveys the ball pin assembly between the two clamping plates, the clamping cylinders are started, and the piston rods of the clamping cylinders extend, driving the two clamping plates to move transversely. The clamping plates clamp the metal sleeve through the elastic layer, which is beneficial to reducing the phenomenon of the ball pin assembly moving. The elastic layer deforms according to the size of the metal sleeve, which is convenient for fixing ball pin assemblies of different sizes, further improving the scope of application.

[0015] Optionally, the conveying mechanism includes a connecting block, a lifting cylinder for driving the ball pin assembly to lift, and a driving lead screw for driving the lifting cylinder to move transversely. The driving lead screw is horizontally arranged on the lower surface of the connecting block, the driving lead screw is threadedly connected with a driving block, the upper end surface of the driving block is slidably connected with the lower end surface of the connecting block, the lower end of the driving block is fixedly connected with the cylinder body of the lifting cylinder, the lifting cylinder is vertically arranged, and the piston rod of the lifting cylinder is provided with a lifting hook for connecting the ball pin assembly.

[0016] By adopting the above technical solution, the lifting cylinder is started, the piston rod of the lifting cylinder extends, driving the lifting hook to descend. The lifting hook hooks the connection hole of the joint ball pin, thus facilitating the conveyance of the ball pin assembly. The driving lead screw rotates, and the driving block linearly moves along the direction of the driving lead screw, thereby facilitating the conveyance of the ball pin assembly to the clamping member and making the process of conveying the ball pin assembly more convenient.

[0017] Optionally, a rotating motor is fixedly connected to the piston rod of the lifting cylinder. The output shaft of the rotating motor is fixedly connected to a connecting plate, which is horizontally arranged. The lifting hook is hinged to the lower surface of the connecting plate.

[0018] By adopting the above technical solution, the rotating motor is started. The rotating motor drives the connecting plate to rotate, and the connecting plate drives the lifting hook to rotate, thereby facilitating the adjustment of the lifting hook to a direction convenient for lifting the ball pin assembly. When the ball pin assembly is conveyed above the connecting rod, the rotating motor is started again. The rotating motor drives the ball pin assembly to rotate, aligning the connection hole of the joint ball pin with the connecting rod, facilitating the connection of the connecting rod to the joint ball pin, and further facilitating the connecting rod to drive the joint ball pin to rotate.

[0019] Optionally, the base is provided with a through hole. A baffle for opening or closing the through hole is provided at the through hole of the base. The base is provided with a linkage for driving the baffle to move. The linkage is connected to the driving motor. A photosensitive resistance switch is provided at the through hole of the base. An alarm is provided at the upper end of the base. The alarm is electrically connected to the photosensitive resistance switch.

[0020] By adopting the above technical solution, the driving motor rotates. The driving motor closes the through hole with the baffle through the linkage, and the alarm does not work. When the ball pin assembly is unqualified, the driving motor stops rotating. Light irradiates on the photosensitive resistance switch through the through hole, and then the alarm works to give an alarm, thus facilitating the staff to know that the ball pin assembly is unqualified. The worker promptly closes the testing machine and removes the ball pin assembly, which is beneficial to reducing the phenomenon of damage caused by the stop of the driving motor.

[0021] Optionally, the linkage includes a driving gear and a driving rack. The driving gear is coaxially and fixedly connected to the output shaft of the driving motor. The driving rack is fixedly connected to the baffle. The driving rack meshes with the driving gear.

[0022] By adopting the above technical solution, the output shaft of the driving motor rotates, driving the driving gear to rotate. The driving gear drives the driving rack to move horizontally, thereby facilitating driving the baffle to move horizontally and making the process of closing the through hole by the baffle more convenient.

[0023] In summary, the present application includes at least one of the following beneficial technical effects of the automatic rotating detection machine for ball pins:

[0024] 1. By setting a clamping member, a connecting rod, and a driving member, the conveying mechanism transports the ball pin assembly to the clamping member. The clamping member clamps the metal sleeve of the ball pin assembly. The connecting rod is connected to the ball joint pin, and the driving member drives the connecting rod to rotate. The connecting rod drives the ball joint pin to rotate. If the ball joint pin rotates, it proves that the ball pin assembly is qualified. If the ball joint pin does not rotate, it proves that the ball pin assembly is unqualified. This is beneficial to reducing the phenomenon of workers manually rotating the ball pin assembly, and thus beneficial to reducing the working intensity of workers.

[0025] 2. By setting a lifting cylinder, when it is necessary to detect ball pin assemblies of different lengths, start the lifting cylinder. The piston rod of the lifting cylinder expands and contracts, driving the connecting ring to rise and fall, which is beneficial to changing the height of the connecting rod, facilitating driving ball pin assemblies of different lengths to rotate, and beneficial to improving the scope of application.

[0026] 3. By setting a rotating motor, the output shaft of the rotating motor drives the connecting plate to rotate, and the connecting plate drives the lifting hook to rotate, which is convenient for changing the direction of the lifting hook and hooking the ball pin assembly. When the ball pin assembly is transported above the connecting rod, start the rotating motor again. The rotating motor drives the ball pin assembly to rotate, making the connecting hole of the ball joint pin face the connecting rod, facilitating the connection between the connecting rod and the ball joint pin, and thus facilitating the connecting rod to drive the ball joint pin to rotate. Description of the Drawings

[0027] Figure 1 is an overall structural schematic diagram of an automatic ball pin rotation detector.

[0028] Figure 2 is Figure 1 an enlarged schematic diagram of part A in

[0029] Figure 3 a structural schematic diagram highlighting the conveying mechanism.

[0030] Figure 4 is a structural schematic diagram highlighting the rotating mechanism and the alarm mechanism.

[0031] Description of the Reference Numerals: 1, conveying mechanism; 11, connecting block; 12, support rod; 13, lifting cylinder; 14, driving lead screw; 15, transverse movement motor; 16, driving block; 17, rotating motor; 18, connecting plate; 19, lifting hook; 2, rotating mechanism; 21, base; 22, clamping member; 23, connecting rod; 24, driving member; 221, clamping plate; 222, clamping cylinder; 223, elastic layer; 241, driving motor; 242, support disk; 243, lifting cylinder; 244, connecting ring; 245, transverse movement cylinder; 3, alarm mechanism; 31, baffle; 32, linkage member; 33, photosensitive resistance switch; 34, alarm; 321, driving gear; 322, driving rack; 35, through hole; 4, ball pin assembly; 41, metal sleeve; 42, ball joint pin; 43, connecting hole. Detailed implementation manners

[0032] The following further describes the present application in detail with reference to all the accompanying drawings.

[0033] An embodiment of the present application discloses an automatic rotation detection machine for ball pins.

[0034] Referring to Figure 1 and Figure 2 , an automatic rotation detection machine for ball pins includes a conveying mechanism 1, a rotating mechanism 2, and an alarm mechanism 3. The conveying mechanism 1 is located above the rotating mechanism 2, and the alarm mechanism 3 is located inside the rotating mechanism 2. The conveying mechanism 1 conveys the ball pin assembly 4 to the rotating mechanism 2, and the rotating mechanism 2 rotates the ball pin assembly 4, thereby detecting whether the ball pin assembly 4 is qualified, which is beneficial to reducing the phenomenon of workers manually rotating the ball pin assembly 4 and reducing the working intensity of the workers. If the workpiece is unqualified, the alarm mechanism 3 gives an alarm, facilitating the staff to timely remove the unqualified workpiece.

[0035] Referring to Figure 2 , the ball pin assembly 4 includes a metal sleeve 41 and a spherical joint pin 42, and connecting holes 43 are respectively formed at both ends of the spherical joint pin 42.

[0036] Referring to Figure 1 and Figure 3 , the conveying mechanism 1 includes a connecting block 11, four support rods 12, a lifting cylinder 13, a driving lead screw 14, a transverse movement motor 15, a driving block 16, a rotating motor 17, a connecting plate 18, and a lifting hook 19. The lower end of the connecting block 11 is fixedly connected to the support rod 12, and the support rods 12 are circumferentially and evenly arranged, and the support rods 12 support the connecting block 11. The driving lead screw 14 is rotatably connected to the lower surface of the connecting block 11, the driving lead screw 14 is horizontally arranged, the transverse movement motor 15 is fixedly connected to one end of the connecting block 11, the output shaft of the transverse movement motor 15 is coaxially connected to the driving lead screw 14, the driving block 16 is threadedly connected to the driving lead screw 14, the upper end surface of the driving block 16 is slidably connected to the lower end surface of the connecting block 11, the lower end of the driving block 16 is fixedly connected to the cylinder body of the lifting cylinder 13, the piston rod of the lifting cylinder 13 is fixedly connected to the rotating motor 17, the output shaft of the rotating motor 17 is vertically downward, the output shaft of the rotating motor 17 is fixedly connected to the connecting plate 18, the connecting plate 18 is horizontally arranged, and the lifting hook 19 is hinged to the lower surface of the connecting plate 18, and the lifting hook 19 is vertically arranged.

[0037] Referring to Figure 1 and Figure 3 , it is necessary to perform the ball pin assembly 4 (referring to Figure 2When detecting, start the lifting cylinder 13. The piston rod of the lifting cylinder 13 extends, driving the lifting hook 19 to descend. Start the rotating motor 17. The rotating motor 17 drives the connecting plate 18 to rotate, and the connecting plate 18 drives the lifting hook 19 to rotate, thus facilitating the adjustment of the direction of the lifting hook 19. The lifting hook 19 hooks the connection hole 43 of the joint ball pin 42. Then start the transverse movement motor 15. The output shaft of the transverse movement motor 15 drives the driving lead screw 14 to rotate, and the driving lead screw 14 drives the driving block 16 to move transversely, thereby facilitating the movement of the ball pin assembly 4 to the rotating mechanism 2, facilitating the conveying of the ball pin assembly 4, reducing the phenomenon of workers conveying the ball pin assembly 4, and reducing the working intensity of the staff.

[0038] Refer to Figure 1 and Figure 4 , the rotating mechanism 2 includes a base 21, a clamping member 22, two connecting rods 23 and a driving member 24. The upper surface of the base 21 is fixedly connected to the support rod 12. The clamping member 22 includes two clamping plates 221, two clamping cylinders 222 and two elastic layers 223. The clamping cylinders 222 are horizontally and fixedly connected to the upper surface of the base 21. The two clamping cylinders 222 are arranged oppositely. The piston rod of the clamping cylinder 222 is fixedly connected to the clamping plate 221. The two clamping plates 221 are arranged oppositely. A groove is formed on the side of the clamping plate 221 away from the clamping cylinder 222. The elastic layer 223 is fixedly connected to the groove of the clamping plate 221.

[0039] Refer to Figure 1 and Figure 4 , the base 21 supports the connecting block 11 and also supports the clamping member 22. When the ball pin assembly 4 (refer to Figure 2 ) is conveyed between the two clamping plates 221, start the clamping cylinder 222. The piston rod of the clamping cylinder 222 extends, driving the clamping plate 221 to move transversely. The clamping plate 221 clamps the metal sleeve 41 through the elastic layer 223, thus reducing the phenomenon of the ball pin assembly 4 moving. The elastic layer 223 deforms according to the size of the metal sleeve 41, thus facilitating the fixation of ball pin assemblies 4 of different sizes and further improving the scope of application.

[0040] Refer to Figure 1 and Figure 4, the driving member 24 includes a driving motor 241, a support disk 242, two lifting cylinders 243, a connecting ring 244 and two transverse moving cylinders 245. The base 21 is provided with a cavity. The driving motor 241 is fixedly connected to the cavity of the base 21. The output shaft of the driving motor 241 is arranged vertically. The output shaft of the driving motor 241 is coaxially and fixedly connected to the support disk 242. The lower surface of the support disk 242 is fixedly connected to the two lifting cylinders 243. The lifting cylinders 243 are arranged vertically. The piston rod of the lifting cylinder 243 passes through one end of the support disk 242 and is fixedly connected to the lower end of the connecting ring 244. The connecting ring 244 is arranged horizontally. The transverse moving cylinder 245 is fixedly connected to the inner side of the connecting ring 244. The two transverse moving cylinders 245 are arranged oppositely. The transverse moving cylinder 245 is arranged horizontally. The piston rod of the transverse moving cylinder 245 is fixedly connected to the connecting rod 23. The connecting rod 23 is arranged horizontally. The two ends of the two connecting rods 23 away from the transverse moving cylinder 245 are movably connected.

[0041] Referring to Figure 1 and Figure 4 , before fixing the ball pin assembly 4 (referring to Figure 2 ), start the rotating motor 17 to make the connecting hole 43 of the joint ball pin 42 face the connecting rod 23, and then fix the ball pin assembly 4. Then start the transverse moving cylinder 245. The piston rod of the transverse moving cylinder 245 extends, driving the connecting rod 23 to move transversely. The connecting rod 23 passes through the connecting hole 43 of the joint ball pin 42. Then start the driving motor 241. The output shaft of the driving motor 241 drives the connecting ring 244 to rotate. The connecting ring 244 drives the connecting rod 23 to rotate, and then drives the joint ball pin 42 to rotate, which is convenient for judging whether the ball pin assembly 4 is qualified. If the joint ball pin 42 rotates, it proves that the ball pin assembly 4 is qualified. If the joint ball pin 42 does not rotate, it proves that the ball pin assembly 4 is unqualified, which is beneficial to reducing the phenomenon of workers manually rotating the ball pin assembly 4, and further beneficial to reducing the working intensity of workers.

[0042] Referring to Figure 1 and Figure 4 , when it is necessary to detect the ball pin assemblies 4 with different lengths (referring to Figure 2 ), start the lifting cylinder 243. The piston rod of the lifting cylinder 243 moves up and down, driving the connecting ring 244 to move up and down, which is beneficial to changing the height of the connecting rod 23, and is convenient for driving the ball pin assemblies 4 with different lengths to rotate, further improving the scope of application.

[0043] Referring to Figure 1 and Figure 4, the alarm mechanism 3 includes a baffle 31, a linkage member 32, a photoresistor switch 33, and an alarm 34. The linkage member 32 includes a driving gear 321 and a driving rack 322. The output shaft of the driving motor 241 is fixedly connected to the driving gear 321 coaxially. The driving rack 322 is slidably connected to the base 21. One end of the driving rack 322 is fixedly connected to the baffle 31. A through hole 35 is formed on one side of the base 21. The baffle 31 is slidably connected to the through hole 35 of the base 21. The photoresistor switch 33 is fixedly connected to the through hole 35 of the base 21. The alarm 34 is fixedly connected to the upper end of the base 21. The alarm 34 is electrically connected to the photoresistor switch 33.

[0044] Referring to Figure 1 and Figure 4 , when the output shaft of the driving motor 241 rotates, it drives the driving gear 321 to rotate. The driving gear 321 drives the driving rack 322 to move horizontally. The driving rack 322 drives the baffle 31 to move horizontally. The baffle 31 closes the through hole 35, thereby disconnecting the photoresistor switch 33 and preventing the alarm 34 from alarming. When the ball pin assembly 4 (referring to Figure 2 ) is unqualified, the driving motor 241 stops rotating. At this time, the through hole 35 is in an open state, and light irradiates on the photoresistor switch 33 through the through hole 35. Then the alarm 34 works to give an alarm, which is convenient for the staff to know that the ball pin assembly 4 is unqualified. The worker can timely turn off the testing machine and remove the ball pin assembly 4, which is beneficial to reducing the phenomenon of damage caused by the stop of the driving motor 241.

[0045] The implementation principle of the ball pin automatic rotation testing machine in the embodiment of the present application is as follows: When it is necessary to test the ball pin assembly 4, start the lifting cylinder 13. The piston rod of the lifting cylinder 13 extends, driving the lifting hook 19 to descend. Start the rotating motor 17. The rotating motor 17 drives the connecting plate 18 to rotate. The connecting plate 18 drives the rotating rod of the lifting hook 19, so as to facilitate the lifting hook 19 to adjust its direction. The lifting hook 19 hooks the connecting hole 43 of the spherical joint pin 42. Then start the transverse movement motor 15. The output shaft of the transverse movement motor 15 drives the driving lead screw 14 to rotate. The driving lead screw 14 drives the driving block 16 to move horizontally, driving the ball pin assembly 4 above the connecting rod 23. Then start the rotating motor 17 to align the connecting hole 43 of the spherical joint pin 42 with the connecting rod 23.

[0046] Then start the clamping cylinder 222 again. The piston rod of the clamping cylinder 222 extends, driving the clamping plate 221 to move horizontally. The clamping plate 221 clamps the metal sleeve 41 through the elastic layer 223. Then start the horizontal movement cylinder 245. The piston rod of the horizontal movement cylinder 245 extends, driving the connecting rod 23 to move horizontally. The connecting rod 23 passes through the connection hole 43 of the joint ball pin 42. Then start the driving motor 241. The output shaft of the driving motor 241 drives the connecting ring 244 to rotate. The connecting ring 244 drives the connecting rod 23 to rotate, and then drives the joint ball pin 42 to rotate. If the joint ball pin 42 rotates, it proves that the ball pin assembly 4 is qualified. If the joint ball pin 42 does not rotate, it proves that the ball pin assembly 4 is unqualified.

[0047] The above are all the preferred embodiments of this application. The protection scope of this application is not limited by this. Therefore, all equivalent changes made according to the structure, shape, and principle of this application should be covered within the protection scope of this application.

Claims

1. An automatic ball pin rotation detector, comprising a base (21), characterized in that: On one side of the base (21), there is a conveying mechanism (1) for conveying the ball pin assembly (4). The ball pin assembly (4) includes a metal sleeve (41) and a knuckle ball pin (42). At the upper end of the base (21), there is a clamping member (22) for clamping the metal sleeve (41). The base (21) is provided with a connecting rod (23) for connecting the knuckle ball pin (42), and the base (21) is provided with a driving member (24) for driving the connecting rod (23) to rotate. The driving member (24) includes a connecting ring (244) and a driving motor (241). Inside the base (21), there is a cavity. The driving motor (241) is fixedly connected inside the cavity of the base (21). The driving motor (241) is vertically arranged. The output shaft of the driving motor (241) is coaxially connected to the connecting ring (244). Inside the connecting ring (244), there are two transverse moving cylinders (245) for driving the connecting rod (23) to move horizontally. The two transverse moving cylinders (245) are arranged oppositely. The piston rod of the transverse moving cylinder (245) is coaxially connected to the connecting rod (23). The ends of the two connecting rods (23) far from the transverse moving cylinders (245) are movably connected. The output shaft of the driving motor (241) is coaxially connected to a support disk (242). The support disk (242) is horizontally arranged. The lower surface of the support disk (242) is connected with a lifting cylinder (243) for driving the connecting ring (244) to move up and down. The lifting cylinder (243) is vertically arranged. The cylinder body of the lifting cylinder (243) is fixedly connected to the support disk (242). The piston rod of the lifting cylinder (243) passes through one end of the support disk (242) and is connected to the lower end of the connecting ring (244). The conveying mechanism (1) includes a connecting block (11), a lifting cylinder (13) for driving the ball pin assembly (4) to move up and down, and a driving lead screw (14) for driving the lifting cylinder (13) to move horizontally. The driving lead screw (14) is horizontally arranged on the lower surface of the connecting block (11). The driving lead screw (14) is threadedly connected to a driving block (16). The upper end surface of the driving block (16) is slidably connected to the lower end surface of the connecting block (11). The lower end of the driving block (16) is fixedly connected to the cylinder body of the lifting cylinder (13). The lifting cylinder (13) is vertically arranged. The piston rod of the lifting cylinder (13) is provided with a lifting hook (19) for connecting the ball pin assembly (4). The piston rod of the lifting cylinder (13) is fixedly connected to a rotating motor (17). The output shaft of the rotating motor (17) is fixedly connected to a connecting plate (18). The connecting plate (18) is horizontally arranged. The lifting hook (19) is hinged to the lower surface of the connecting plate (18).

2. The automatic rotation detection machine for ball pins according to claim 1, wherein: The clamping member (22) includes two clamping plates (221) and two clamping cylinders (222) for driving the transverse movement of the clamping plates (221). The clamping cylinders (222) are connected to the upper end of the base (21) and are horizontally arranged. The clamping plates (221) are provided with grooves adapted to the metal sleeve (41), and an elastic layer (223) is fixedly connected to the groove of the clamping plate (221).

3. The automatic ball pin rotation detector according to claim 1, characterized in that: The base (21) is provided with a through hole (35). A baffle (31) for opening or closing the through hole (35) is provided at the through hole (35) of the base (21). The base (21) is provided with a linkage member (32) for driving the movement of the baffle (31). The linkage member (32) is connected to the drive motor (241). A photoresistor switch (33) is provided at the through hole (35) of the base (21). An alarm (34) is provided at the upper end of the base (21). The alarm (34) is electrically connected to the photoresistor switch (33).

4. The automatic ball pin rotation detector according to claim 3, characterized in that: The linkage member (32) includes a drive gear (321) and a drive rack (322). The drive gear (321) is coaxially and fixedly connected to the output shaft of the drive motor (241). The drive rack (322) is fixedly connected to the baffle (31). The drive rack (322) meshes with the drive gear (321).

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