An automatic oiling film application device for automotive drive shaft universal joints

Abstract

This invention relates to the technical field of oil coating equipment, and in particular to an automatic oil coating equipment for automotive driveshaft universal joints. The equipment includes a universal joint body and two first sliders. Clamping structures are provided at both ends of the universal joint body. The two first sliders are respectively connected to two sets of clamping structures. Arc-shaped guide rails are slidably provided on both the front and rear sides of the first sliders. By deforming the universal joint body, the internal structure of the universal joint body can be easily exposed upwards, facilitating the spraying of oil into the interior of the universal joint body. This avoids blind spots inside the universal joint body that would prevent comprehensive oil coating, achieving comprehensive oil spraying treatment of the universal joint body. This effectively improves the automation level of the oil coating process, frees up manpower, and increases work efficiency. Simultaneously, automated oil coating treatment can effectively improve the uniformity of oil distribution on the universal joint body, improve the uniformity of oil film thickness, and improve the quality of the oil coating.

Description

Technical Field

[0001] This invention relates to the technical field of oil coating equipment, and in particular to an automatic oil coating equipment for automotive drive shaft universal joints. Background Technology

[0002] As is well known, a universal joint, also called a universal connector, is a transmission connector that enables power transmission at varying angles. Universal joints are generally used in conjunction with the drive shaft of a car to change the direction of the drive shaft axis. In front-engine, rear-wheel-drive vehicles, the universal joint is installed between the transmission output shaft and the drive axle final drive input shaft; while in front-engine, front-wheel-drive vehicles, the drive shaft is omitted, and the universal joint is installed between the front axle half-shaft, which is responsible for both driving and steering, and the wheels.

[0003] Universal joints generally consist of a cross shaft, two arched plates, and an external connecting shaft installed on the outer wall of each arched plate. After processing, universal joints typically require an oil film treatment, where a protective oil layer is applied to the surface of the universal joint to protect it. The current method of oil film application mainly involves workers spraying oil directly onto the universal joint using a spray gun. However, this method can easily lead to inconsistent oil film thickness and poor uniformity on the surface of the universal joint. Blind spots can also appear inside the universal joint, making it impossible to achieve a comprehensive oil film treatment. In addition, manual oil spraying requires continuous adjustment of the universal joint's position, resulting in slow oil film application efficiency and high manpower consumption. Summary of the Invention

[0004] To solve the above-mentioned technical problems, the present invention provides an automatic oiling film application device for automotive drive shaft universal joints.

[0005] To achieve the above objectives, the technical solution adopted by the present invention is as follows:

[0006] An automatic oiling film application device for automotive drive shaft universal joints includes a universal joint body and two first sliders. The left and right ends of the universal joint body are provided with clamping structures, and the two first sliders are respectively connected to two sets of clamping structures. Arc-shaped guide rails are slidably provided on the front and rear sides of the first sliders.

[0007] A push structure is provided above the universal joint body, and a nozzle is provided on the push structure. The push structure is used to drive the nozzle to move back and forth left and right.

[0008] The axis of the arc-shaped guide rail coincides with the center of the universal joint body.

[0009] Furthermore, the clamping structure includes a polygonal bracket, on each side of which a bevel gear is rotatably mounted. The front and rear sidewalls of the bevel gears are provided with bevel teeth. Multiple bevel gears are arranged in a ring, and adjacent bevel gears mesh with each other. A pressing plate is provided on the bevel gear.

[0010] Furthermore, the extrusion plate is rotatably connected to the bevel gear, and a right-angle guide plate is provided between two adjacent extrusion plates, with both ends of the right-angle guide plate slidingly inserted into the two adjacent extrusion plates respectively.

[0011] Furthermore, a connecting plate is fixed on the first slider, a support ring is fixed on the top of the connecting plate, a turntable is rotatably sleeved inside the support ring, a first cylinder is set in the middle of the turntable, a plurality of push-pull rods are set on the movable end of the first cylinder, and the push-pull rods are rotatably connected to the first cylinder. The push-pull rods are inclined, and the outer end of the push-pull rods is rotatably mounted on the outer wall of the bevel gear.

[0012] Multiple support columns are installed on the side wall of the turntable, and the outer ends of the support columns are fixedly connected to the polygonal bracket.

[0013] A gear ring is installed on the turntable, and gears are meshed on the gear ring. A first motor is installed on the first slider, and the output end of the first motor is connected to the gear transmission.

[0014] Furthermore, the pushing structure includes a support groove plate, a second motor is installed inside the support groove plate, a lead screw is installed at the output end of the second motor, the outer end of the lead screw is rotatably installed on the inner wall of the support groove plate, a screw sleeve is screwed onto the lead screw, a second slider is installed on the top of the screw sleeve, the top of the second slider is slidably installed on the top of the inner wall of the support groove plate, and the bottom of the screw sleeve is connected to the nozzle.

[0015] Furthermore, the screw sleeve is rotatably connected to the nozzle, and the nozzle is in an inclined state;

[0016] The support groove plate has limit grooves on both the front and rear sides of its inner sidewall. A third slider is slidably arranged in the limit groove. A slide rod is provided on the third slider. The slide rod passes vertically through the third slider and is slidably connected. A leaf spring is installed on the side wall of the slide rod. The outer end of the leaf spring is connected to the third slider.

[0017] A crankshaft is rotatably mounted on both the front and rear side walls of the nozzle. The outer end of the crankshaft is rotatably mounted on the side wall of the slide rod, and the crankshaft is located below the third slider. Baffles are provided on both the left and right sides of the nozzle, and the baffles are fixed on the screw sleeve.

[0018] Furthermore, it also includes an outer housing, which is located outside the universal joint body, the arc-shaped guide rail and the support groove plate. The top of the support groove plate is installed on the top of the inner wall of the outer housing, and a support column is installed at the bottom of the arc-shaped guide rail. The bottom of the support column is fixed to the bottom of the inner wall of the outer housing. A door is provided at the opening of the outer housing, and an oil drain pipe is connected to the lower side of the outer wall of the outer housing.

[0019] Furthermore, a second cylinder is installed at the bottom inside the outer casing. A movable sleeve is installed laterally on the upper movable end of the second cylinder. Push-pull plates are slidably arranged on both the left and right sides inside the movable sleeve. The outer ends of the push-pull plates extend to the outside of the movable sleeve, and a first adjusting plate is installed at the outer end of the push-pull plates at an angle. The top of the first adjusting plate is rotatably installed on the outer wall of the first slider, and a second adjusting plate is rotatably installed at the bottom of the first adjusting plate. The bottom of the second adjusting plate is rotatably installed at the bottom of the inner wall of the outer casing.

[0020] Compared with the prior art, the beneficial effects of the present invention are as follows: by deforming the universal joint body, the internal structure of the universal joint body can be easily exposed upwards, making it easier for oil to be sprayed into the interior of the universal joint body. This avoids blind spots inside the universal joint body that would prevent the comprehensive oiling process, thus achieving comprehensive oiling treatment of the universal joint body. This effectively improves the automation level of the oiling process, frees up manpower, and increases work efficiency. At the same time, automated oiling treatment can effectively improve the uniformity of oil distribution on the universal joint body, improve the uniformity of oil film thickness, and improve the quality of the oiling film. Attached Figure Description

[0021] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0022] Figure 1 This is a schematic diagram of the front structure of the present invention;

[0023] Figure 2 yes Figure 1 Schematic diagram of the outer and inner box structures;

[0024] Figure 3 yes Figure 1 Enlarged schematic diagram of the central universal joint body;

[0025] Figure 4 yes Figure 3 Enlarged schematic diagram of the central support ring structure;

[0026] Figure 5 yes Figure 1 Enlarged cross-sectional view of the central support groove plate;

[0027] The following components are labeled in the attached diagram: 1. Universal joint body; 2. First slider; 3. Arc-shaped guide rail; 4. Nozzle; 5. Polygonal bracket; 6. Bevel gear; 7. Extrusion plate; 8. Right-angle guide plate; 9. Connecting plate; 10. Support ring; 11. Turntable; 12. First cylinder; 13. Push-pull rod; 14. Support column; 15. Gear ring; 16. First motor; 17. Gear; 18. Support groove plate; 19. Second motor; 20. Lead screw; 21. Screw sleeve; 22. Second slider; 23. Limiting groove; 24. Third slider; 25. Slide rod; 26. Leaf spring; 27. Crankshaft; 28. Baffle; 29. ​​Outer housing; 30. Door; 31. Oil drain pipe; 32. Support column; 33. Second cylinder; 34. Moving sleeve; 35. Push-pull plate; 36. First adjusting plate; 37. Second adjusting plate. Detailed Implementation

[0028] 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.

[0029] In the description of this invention, it should be noted that the orientations or positional relationships indicated by terms such as "center", "up", "down", "left", "right", "vertical", "horizontal", "inner", and "outer" are based on the orientations or positional relationships 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.

[0030] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to the internal communication between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances. This embodiment is written in a progressive manner.

[0031] like Figure 1 and Figure 3 As shown, an automatic oiling film application device for a universal joint of an automotive drive shaft according to the present invention includes a universal joint body 1 and two first sliders 2. The left and right ends of the universal joint body 1 are provided with clamping structures, and the two first sliders 2 are respectively connected to two sets of clamping structures. Arc-shaped guide rails 3 are slidably provided on the front and rear sides of the first sliders 2.

[0032] A pushing structure is provided above the universal joint body 1, and a nozzle 4 is provided on the pushing structure. The pushing structure is used to drive the nozzle 4 to move back and forth left and right.

[0033] The axis of the arc-shaped guide rail 3 coincides with the center of the universal joint body 1.

[0034] In this embodiment, the universal joint body 1 is fixed on two sets of clamping structures. The first slider 2 is pushed to slide downwards on the two arc-shaped guide rails 3 on it. The two first sliders 2 move synchronously. The first sliders 2 drive the universal joint body 1 to bend through the clamping structures, thereby causing both sides of the universal joint body 1 to rotate downwards and change the universal joint body 1 from a horizontal state to an angled state, with the angle opening facing downwards. At this time, the inner wall of the inner shielding part of the universal joint body 1 is tilted towards the nozzle 4 and exposed. Rotating the universal joint body 1, the universal joint body 1 maintains the angled state and performs rotational motion. The oil is sprayed downwards through the nozzle 4 onto the rotating universal joint body 1. Since the universal joint body 1 is in an angled state, it is convenient for the oil sprayed by the nozzle 4 to adhere to the outer surface of the universal joint body 1 at the same time. Oil is sprayed into the interior of the universal joint body 1, facilitating simultaneous oil film coating treatment inside the universal joint body 1. The pushing structure drives the nozzle 4 to move back and forth. The moving nozzle 4 can perform full automatic oil film coating treatment on the universal joint body 1. By deforming the universal joint body 1, the internal structure of the universal joint body 1 can be exposed upwards, making it easier for oil to be sprayed into the interior of the universal joint body 1. This avoids blind spots inside the universal joint body 1 that would prevent the full oil film coating work from being completed, achieving full oil spraying treatment of the universal joint body 1. This effectively improves the automation level of the oil film coating work, frees up manpower, and improves work efficiency. At the same time, the automated oil film coating treatment can effectively improve the uniformity of oil distribution on the universal joint body 1, improve the uniformity of oil film thickness, and improve the quality of the oil film coating.

[0035] In this embodiment, since the axis of the arc-shaped guide rail 3 coincides with the center of the universal joint body 1, the height of the universal joint body 1 remains unchanged when the first slider 2 moves, thereby preventing the universal joint body 1 from moving upward and colliding with the nozzle 4.

[0036] like Figure 4 As shown, as a preferred embodiment of the above, the clamping structure includes a polygonal bracket 5, on each side of the polygonal bracket 5 a bevel gear 6 is rotatably mounted, the front and rear side walls of the bevel gear 6 are provided with bevel teeth, the multiple bevel gears 6 are arranged in a ring, and two adjacent bevel gears 6 are meshed and connected to each other, and a pressing plate 7 is provided on the bevel gear 6.

[0037] In this embodiment, since two adjacent bevel gears 6 are meshed and connected to each other, the multiple bevel gears 6 always rotate synchronously. The rotating bevel gears 6 drive the extrusion plates 7 to rotate synchronously, so that the multiple extrusion plates 7 move closer to each other synchronously and extrude and fix the outer end of the universal joint body 1 between them. The polygonal bracket 5 supports the bevel gears 6.

[0038] In this embodiment, by moving multiple extrusion plates 7 synchronously, the universal joint body 1 can be easily centered and positioned, so that the center of the universal joint body 1 coincides with the axis of the multiple bevel gears 6. This avoids the generation of torque stress between the rotating universal joint body 1 and the clamping structure when the axis of the center of the universal joint body 1 and the multiple bevel gears 6 is offset, thus ensuring the stable rotation of the universal joint body 1.

[0039] like Figure 4 As shown, in a preferred embodiment, the extrusion plate 7 is rotatably connected to the bevel gear 6, and a right-angle guide plate 8 is provided between two adjacent extrusion plates 7, with both ends of the right-angle guide plate 8 slidingly inserted into the two adjacent extrusion plates 7 respectively.

[0040] In this embodiment, since two adjacent pressing plates 7 are slidably connected by a right-angle guide plate 8, when multiple bevel gears 6 rotate synchronously, the right-angle guide plate 8 guides and limits the pressing plates 7, so that when multiple pressing plates 7 approach or separate from each other, the pressing plates 7 remain in a horizontal state, and thus the pressing plates 7 follow the bevel gears 6 to perform arc-shaped translational motion, which makes it convenient for the pressing plates 7 to maintain a surface contact state with the outer end of the universal joint body 1, and avoids the pressing plates 7 being in a line contact state with the outer end of the universal joint body 1 when the pressing plates 7 are rotating with the bevel gears 6, thereby improving the clamping effect and making it convenient for the pressing plates 7 to always maintain a surface contact state with the outer end of the universal joint body 1 of any size.

[0041] like Figure 4 As shown, in a preferred embodiment, a connecting plate 9 is fixed on the first slider 2, a support ring 10 is fixed on the top of the connecting plate 9, a turntable 11 is rotatably sleeved inside the support ring 10, a first cylinder 12 is provided in the middle of the turntable 11, a plurality of push-pull rods 13 are provided on the movable end of the first cylinder 12, and the push-pull rods 13 are rotatably connected to the first cylinder 12. The push-pull rods 13 are inclined, and the outer end of the push-pull rods 13 is rotatably mounted on the outer wall of the bevel gear 6.

[0042] Multiple support columns 14 are installed on the side wall of the turntable 11, and the outer ends of the support columns 14 are fixedly connected to the polygonal bracket 5.

[0043] A gear ring 15 is installed on the turntable 11, and a gear 17 is meshed on the gear ring 15. A first motor 16 is installed on the first slider 2, and the output end of the first motor 16 is connected to the gear 17 for transmission.

[0044] In this embodiment, the first cylinder 12 can drive multiple bevel gears 6 to rotate through multiple push-pull rods 13. The multiple bevel gears 6 rotate synchronously, and the bevel gears 6 drive the pressing plate 7 on them to move, thereby realizing the clamping and fixing of the universal joint body 1. The support column 14 can support the polygonal bracket 5. The first motor 16 drives the gear ring 15 and the turntable 11 to rotate through the gear 17. The turntable 11 rotates on the support ring 10. The turntable 11 drives the first cylinder 12, push-pull rods 13, support column 14, bevel gears 6, pressing plate 7 and universal joint body 1 to rotate synchronously, thereby causing the universal joint body 1 to rotate.

[0045] like Figure 5 As shown, in a preferred embodiment of the above, the pushing structure includes a support groove plate 18, a second motor 19 is installed in the support groove plate 18, a lead screw 20 is installed at the output end of the second motor 19, the outer end of the lead screw 20 is rotatably installed on the inner wall of the support groove plate 18, a screw sleeve 21 is screwed onto the lead screw 20, a second slider 22 is installed on the top of the screw sleeve 21, the top of the second slider 22 is slidably installed on the top of the inner wall of the support groove plate 18, and the bottom of the screw sleeve 21 is connected to the nozzle 4.

[0046] In this embodiment, the second motor 19 can drive the screw sleeve 21 to move left and right through the lead screw 20. The screw sleeve 21 drives the nozzle 4 to move left and right. At the same time, the screw sleeve 21 drives the second slider 22 to slide on the inner wall of the support groove plate 18.

[0047] like Figure 5 As shown, in a preferred embodiment of the above, the screw sleeve 21 is rotatably connected to the nozzle 4, and the nozzle 4 is in an inclined state;

[0048] The support groove plate 18 has limit grooves 23 on both the front and rear sides of its inner sidewall. A third slider 24 is slidably arranged in the limit groove 23. A slider 25 is provided on the third slider 24. The slider 25 passes vertically through the third slider 24 and is slidably connected. A leaf spring 26 is installed on the sidewall of the slider 25. The outer end of the leaf spring 26 is connected to the third slider 24.

[0049] A crankshaft 27 is rotatably mounted on both the front and rear side walls of the nozzle 4. The outer end of the crankshaft 27 is rotatably mounted on the side wall of the slide rod 25, and the crankshaft 27 is located below the third slider 24. Baffles 28 are provided on both the left and right sides of the nozzle 4, and the baffles 28 are fixed on the screw sleeve 21.

[0050] In this embodiment, the leaf spring 26 always exerts an upward elastic thrust on the slide rod 25, and the baffle 28 limits the position of the nozzle 4. When the screw sleeve 21 moves, the screw sleeve 21 drives the third slider 24 to slide in the limiting groove 23 through the nozzle 4, baffle 28, crankshaft 27, slide rod 25 and leaf spring 26. At this time, the third slider 24 moves synchronously with the nozzle 4. The nozzle 4 is in an inclined state and moves laterally. The inclination direction of the nozzle 4 is consistent with the movement direction of the screw sleeve 21. When the third slider 24 moves to the end of the arc-shaped guide rail 3, the screw sleeve 21 continues to move. The screw sleeve 21 pulls the nozzle 4 from the inclined state to gradually rotate to the vertical state. The nozzle 4 separates from one of the baffles 28. At this time, the nozzle 4 pulls the slide rod 25 to slide downward in the third slider 24 through the crankshaft 27. The leaf spring 26 undergoes elastic deformation. The screw sleeve 21 continues to move. The nozzle 4 gradually rotates from the vertical state to the inclined state, and the inclination direction is consistent with the initial inclination direction. Conversely, at this time, the leaf spring 26 pushes the slide rod 25 to move upward. The slide rod 25 generates an elastic pulling force on the nozzle 4 through the crankshaft 27. When the nozzle 4 tilts and contacts another baffle 28, the nozzle 4 stops rotating, and the screw sleeve 21 moves in the opposite direction. The screw sleeve 21 drives the nozzle 4, which has been adjusted in direction, to move synchronously. Thus, when the nozzle 4 tilts to the left, the screw sleeve 21 and the nozzle 4 move synchronously to the left. When the nozzle 4 tilts to the right, the screw sleeve 21 and the nozzle 4 move synchronously to the right. This realizes the continuous reversible movement of the nozzle 4 in the direction of oil spraying. Because the nozzle 4 performs continuous reversible tilting oil spraying, it is convenient for the oil to fall into the universal joint body 1 at an angle, increasing the oil intake inside the universal joint body 1. This makes it easier to keep the oil inside and outside the universal joint body 1 uniform, avoiding the situation where some oil is blocked when the nozzle 4 sprays oil vertically or tilts to one side, resulting in less oil entering the universal joint body 1. This improves the uniformity of oil spraying and enhances the functionality of the equipment.

[0051] like Figure 2 and Figure 3 As shown, as a preferred embodiment of the above, it also includes an outer housing 29. The outer housing 29 is located outside the universal joint body 1, the arc-shaped guide rail 3 and the support groove plate 18. The top of the support groove plate 18 is installed on the top of the inner wall of the outer housing 29. A support column 32 is installed at the bottom of the arc-shaped guide rail 3. The bottom of the support column 32 is fixed to the bottom of the inner wall of the outer housing 29. A door 30 is provided at the opening of the outer housing 29. An oil drain pipe 31 is connected to the lower side of the outer wall of the outer housing 29.

[0052] In this embodiment, the outer casing 29 can conveniently shield the oil mist generated during the oil coating process, and the oil deposited inside the outer casing 29 can be discharged through the oil drain pipe 31. The support column 32 can support the arc-shaped guide rail 3.

[0053] like Figure 1 and Figure 3As shown, in a preferred embodiment, a second cylinder 33 is installed at the bottom of the inner casing 29. A movable sleeve 34 is installed laterally on the upper movable end of the second cylinder 33. Push-pull plates 35 are slidably arranged on both the left and right sides inside the movable sleeve 34. The outer ends of the push-pull plates 35 extend to the outer side of the movable sleeve 34, and a first adjusting plate 36 is rotatably installed on the outer end of the push-pull plates 35. The top of the first adjusting plate 36 is rotatably installed on the outer wall of the first slider 2, and a second adjusting plate 37 is rotatably installed on the bottom of the first adjusting plate 36. The bottom of the second adjusting plate 37 is rotatably installed on the bottom of the inner wall of the outer casing 29.

[0054] In this embodiment, the second cylinder 33 drives the movable sleeve 34 to move up and down. The movable sleeve 34 pushes the first adjusting plate 36 to move up and down through the push-pull plate 35. The first adjusting plate 36 drives the first slider 2 to move up and down, so that the first slider 2 slides along the arc-shaped guide rail 3, which facilitates the deformation of the universal joint body 1.

[0055] The above description is only a preferred embodiment of the present invention. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present invention, and these improvements and modifications should also be considered within the scope of protection of the present invention.

Claims

1. An automatic oiling film application device for automotive driveshaft universal joints, characterized in that, It includes a universal joint body (1) and two first sliders (2). The universal joint body (1) is provided with clamping structures at both ends. The two first sliders (2) are connected to two sets of clamping structures respectively. Arc-shaped guide rails (3) are slidably provided on both the front and rear sides of the first sliders (2). A push structure is provided above the universal joint body (1), and a nozzle (4) is provided on the push structure. The push structure is used to drive the nozzle (4) to move back and forth left and right. The axis of the arc-shaped guide rail (3) coincides with the center of the universal joint body (1); The clamping structure includes a polygonal bracket (5), on each side of the polygonal bracket (5) a bevel gear (6) is rotatably mounted, and bevel teeth are provided on the front and rear side walls of the bevel gear (6). Multiple bevel gears (6) are arranged in a ring, and two adjacent bevel gears (6) mesh with each other. A pressing plate (7) is provided on the bevel gear (6). The extrusion plate (7) is rotatably connected to the bevel gear (6), and a right-angle guide plate (8) is provided between two adjacent extrusion plates (7). The two ends of the right-angle guide plate (8) are slidably inserted into the two adjacent extrusion plates (7); A connecting plate (9) is fixed on the first slider (2), and a support ring (10) is fixed on the top of the connecting plate (9). A turntable (11) is rotatably sleeved inside the support ring (10). A first cylinder (12) is set in the middle of the turntable (11). Multiple push-pull rods (13) are set on the movable end of the first cylinder (12), and the push-pull rods (13) are rotatably connected to the first cylinder (12). The push-pull rods (13) are inclined, and the outer end of the push-pull rods (13) is rotatably installed on the outer wall of the bevel gear (6). Multiple support columns (14) are installed on the side wall of the turntable (11), and the outer ends of the support columns (14) are fixedly connected to the polygonal bracket (5). A gear ring (15) is installed on the turntable (11), and a gear (17) is meshed on the gear ring (15). A first motor (16) is installed on the first slider (2), and the output end of the first motor (16) is connected to the gear (17) for transmission. The pushing structure includes a support groove plate (18), a second motor (19) is installed inside the support groove plate (18), a lead screw (20) is installed at the output end of the second motor (19), the outer end of the lead screw (20) is rotatably installed on the inner wall of the support groove plate (18), a screw sleeve (21) is screwed on the lead screw (20), a second slider (22) is installed on the top of the screw sleeve (21), the top of the second slider (22) is slidably installed on the top of the inner wall of the support groove plate (18), and the bottom of the screw sleeve (21) is connected to the nozzle (4); The screw sleeve (21) is rotatably connected to the nozzle (4), and the nozzle (4) is in an inclined state; The inner sidewall of the support groove plate (18) is provided with a limiting slide groove (23) on both the front and rear sides. A third slider (24) is slidably arranged in the limiting slide groove (23). A slide rod (25) is provided on the third slider (24). The slide rod (25) passes vertically through the third slider (24) and is slidably connected. A leaf spring (26) is installed on the sidewall of the slide rod (25). The outer end of the leaf spring (26) is connected to the third slider (24). A crankshaft (27) is rotatably mounted on the front and rear side walls of the nozzle (4). The outer end of the crankshaft (27) is rotatably mounted on the side wall of the slide rod (25). The crankshaft (27) is located below the third slider (24). Baffles (28) are provided on both the left and right sides of the nozzle (4). The baffles (28) are fixed on the screw sleeve (21).

2. The automatic oiling film application device for automotive driveshaft universal joints according to claim 1, characterized in that, It also includes an outer housing (29), which is located outside the universal joint body (1), the arc-shaped guide rail (3) and the support groove plate (18). The top of the support groove plate (18) is installed on the top of the inner wall of the outer housing (29). A support column (32) is installed at the bottom of the arc-shaped guide rail (3). The bottom of the support column (32) is fixed to the bottom of the inner wall of the outer housing (29). A door (30) is provided at the opening of the outer housing (29). An oil drain pipe (31) is connected to the lower side of the outer wall of the outer housing (29).

3. The automatic oiling film application device for automotive driveshaft universal joints according to claim 2, characterized in that, The bottom of the outer casing (29) is equipped with a second cylinder (33). The upper movable end of the second cylinder (33) is horizontally equipped with a movable sleeve (34). The left and right sides of the movable sleeve (34) are slidably provided with push-pull plates (35). The outer end of the push-pull plate (35) extends to the outside of the movable sleeve (34). The outer end of the push-pull plate (35) is tilted and rotated to be equipped with a first adjusting plate (36). The top of the first adjusting plate (36) is rotatably installed on the outer wall of the first slider (2). The bottom of the first adjusting plate (36) is rotatably installed with a second adjusting plate (37). The bottom of the second adjusting plate (37) is rotatably installed on the bottom of the inner wall of the outer casing (29).

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