Universal joint oil cup assembly apparatus

The design of fully automated assembly equipment has solved the problems of misalignment and jamming of universal joint grease fittings, achieving precise positioning and stable connection between the universal joint and the grease fitting, thus improving production efficiency and product consistency.

CN224488285UActive Publication Date: 2026-07-14NINGBO TONGREN BEARING

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
NINGBO TONGREN BEARING
Filing Date
2025-06-27
Publication Date
2026-07-14

AI Technical Summary

Technical Problem

Existing universal joint nozzle assembly equipment is prone to misalignment and jamming during the insertion process, resulting in inaccurate assembly, affecting quality and consistency, and may even damage the universal joint body.

Method used

A fully automatic assembly equipment including a machine base, an assembly mechanism, a feeding mechanism, and an unloading mechanism was designed. Through components such as positioning blocks, gripping mechanisms, and rotary motors, the equipment achieves precise positioning and automatic assembly of universal joints and oil nozzles, ensuring correct insertion direction and appropriate tightening torque.

Benefits of technology

It enables fully automated assembly of universal joints and grease fittings, improving production efficiency and assembly quality, ensuring the accuracy of insertion positions and the reliability of connections, and reducing the risk of manual intervention and product damage.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a universal joint's oil nozzle assembly equipment, including the machine table, be provided with assembly mechanism, first feeding mechanism, second feeding mechanism and blanking mechanism on the machine table, the assembly mechanism includes the assembly platform to drive its rotation assembly motor, be equipped with the locating block on the assembly platform, the first feeding mechanism includes the first feeding assembly for, and the first grabbing mechanism for grabbing the universal joint, the second feeding mechanism includes the second feeding assembly, and the second grabbing mechanism for grabbing the oil nozzle, is equipped with the installation groove on the universal joint, the first grabbing mechanism is grabbed to the locating block on the universal joint. The utility model realizes the full -automatic assembly of universal joint and oil nozzle, ensures the accurate oil nozzle plug -in position, guarantees the reliable firm of assembly, promotes the assembly quality and consistency.
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Description

Technical Field

[0001] This utility model relates to the field of universal joint technology, and in particular to a universal joint grease fitting assembly device. Background Technology

[0002] A universal joint is a mechanical connection component used to transmit power and allow for angle changes. It is commonly used in the drive shaft system of vehicles. A grease nipple is a lubrication component installed on a mechanical joint to inject grease into the internal parts and reduce wear. Universal joint grease nipple assembly equipment refers to specialized mechanical equipment used to accurately and reliably install grease nipples onto universal joint components. It is mostly used in the production lines of automobiles, machinery, or engineering equipment.

[0003] In existing universal joint grease fitting assembly equipment, the insertion force often cannot be transmitted along the ideal axis direction during the process of inserting the grease fitting into the universal joint mounting slot. This can easily cause the insertion posture to deviate, resulting in jamming. This not only affects the assembly rhythm but also damages the universal joint body. The grease fitting thread may be squeezed and deformed or have defects such as stripping or breakage. In severe cases, it may even cause the entire part to be scrapped, thus significantly reducing the assembly quality and product consistency. Utility Model Content

[0004] The purpose of this invention is to provide a universal joint grease nipple assembly device that enables fully automatic assembly of the universal joint and grease nipple, ensures accurate grease nipple insertion position, guarantees reliable and secure assembly, and improves assembly quality and consistency.

[0005] The above-mentioned technical objective of this utility model is achieved through the following technical solution: a universal joint nozzle assembly device, including a machine base, on which an assembly mechanism, a first feeding mechanism, a second feeding mechanism, and a unloading mechanism are provided. The assembly mechanism includes an assembly platform and an assembly motor for driving its rotation, and a positioning block is provided on the assembly platform. The first feeding mechanism includes a first feeding component and a first gripping mechanism for gripping the universal joint. The second feeding mechanism includes a second feeding component and a second gripping mechanism for gripping the nozzle. The universal joint is provided with an installation groove. The first gripping mechanism grips the universal joint onto the positioning block, and the second gripping mechanism places the nozzle onto the universal joint, and the nozzle is inserted and engaged with the installation groove. By adopting the above technical solution, an automatic assembly process of the universal joint and nozzle is realized, reducing manual intervention and improving production efficiency and product consistency.

[0006] A further feature of this invention is that the positioning block is provided with a positioning inclined surface that cooperates with the universal joint, and the positioning inclined surface is provided with a positioning groove. By adopting the above technical solution, the positioning of the universal joint on the assembly platform is more accurate, effectively preventing misalignment and loosening, and improving the accuracy and stability of the oil nozzle insertion.

[0007] A further feature of this invention is that the first feeding assembly includes a first feeding bracket and a feeding guide rail disposed on the first feeding assembly. The feeding guide rail is provided with a plurality of inner feeding slots, and the first feeding bracket is provided with a plurality of outer feeding slots. The first feeding mechanism is provided with a lifting cylinder for lifting the feeding guide rail. A first feeding cylinder is provided on one side of the first feeding bracket to drive the feeding guide rail to be conveyed to the assembly platform. By adopting the above technical solution, the universal joints are conveyed to the positioning block assembly one by one, which improves the feeding efficiency and ensures the continuity of assembly.

[0008] The present invention is further configured such that: the first gripping mechanism includes a first gripping bracket, a first horizontal movable plate slidably disposed on the first gripping bracket and a first horizontal cylinder for driving its horizontal movement, the first horizontal movable plate is provided with a first vertical movable plate and a first vertical cylinder for driving its vertical movement, and the first vertical movable plate is provided with a gripper assembly. By adopting the above technical solution, the gripping and handling of the universal joint is made more flexible and stable, ensuring that the universal joint is accurately placed on the positioning block and avoiding positional deviations during assembly.

[0009] A further feature of this invention is that the second feeding assembly includes a second feeding bracket and a vibrating discharge plate disposed on the second feeding bracket. The discharge end of the vibrating discharge plate is provided with a clamping arm. The second feeding bracket is provided with a second feeding cylinder that drives the clamping arm to move toward the assembly platform. By adopting the above technical solution, it is ensured that the oil nozzles are arranged in an orderly manner through the vibrating plate and automatically conveyed to the assembly position through the clamping arm, thereby reducing manual operation errors and improving the overall feeding efficiency.

[0010] The present invention is further configured such that: the second gripping mechanism includes a second gripping bracket, a second horizontal movable plate slidably disposed on the second gripping bracket, and a second horizontal cylinder for driving its horizontal movement; the second horizontal movable plate is provided with a second vertical movable plate and a second vertical cylinder for driving its vertical movement; the second vertical movable plate is provided with a movable block; and the movable block is provided with a vacuum adsorption head. By adopting the above technical solution, the precise adsorption and handling of the nozzle is achieved, avoiding the nozzle from falling or being damaged during the transfer process, and improving the reliability of assembly.

[0011] A further feature of this invention is that the movable block is also equipped with a screwing motor, which drives the vacuum suction head to screw the oil nozzle onto the universal joint. By adopting the above technical solution, the oil nozzle can be automatically screwed onto the universal joint, making the assembly tight and ensuring a firm connection.

[0012] A further feature of this invention is that the movable block is also provided with a clamping arm, and the clamping arm is provided with a clamping groove that cooperates with the universal joint. By adopting the above technical solution, the clamping arm firmly clamps the universal joint onto the positioning block during the screwing process, preventing the universal joint from shifting due to excessive screwing torque.

[0013] A further feature of this invention is that an alignment mechanism is provided between the first feeding mechanism and the assembly mechanism. The alignment mechanism includes an alignment bracket and a first guide wheel and a second guide wheel rotatably mounted on the alignment bracket. The second guide wheel abuts against the first guide wheel. An alignment motor that drives the first guide wheel to rotate is provided on the alignment bracket. By adopting the above technical solution, the angle and position deviation of the universal joint during the conveying process can be effectively corrected, ensuring its accurate posture before entering the assembly position and improving the assembly success rate.

[0014] A further feature of this invention is that the unloading mechanism includes an unloading conveyor belt, and an unloading gripping mechanism is provided between the unloading conveyor belt and the assembly platform. The unloading gripping mechanism includes an unloading gripping bracket, an unloading horizontal movable plate slidably mounted on the unloading gripping bracket, and an unloading horizontal cylinder that drives its horizontal movement. The unloading horizontal movable plate is provided with an unloading vertical movable plate and an unloading vertical cylinder that drives its vertical movement. The unloading vertical movable plate is provided with unloading grippers. By adopting the above technical solution, the automatic gripping and unloading of finished products after assembly is realized, reducing manual intervention, improving unloading efficiency, and avoiding damage to finished products from collisions.

[0015] In summary, this utility model has the following beneficial effects:

[0016] 1. This utility model realizes a fully automated assembly process for universal joints and oil nozzles, which significantly improves production efficiency and reduces labor costs.

[0017] 2. The positioning block of this utility model, together with the positioning inclined surface and positioning groove structure, can accurately position the universal joint, ensure the accurate insertion position of the oil nozzle, and improve the assembly quality and consistency.

[0018] 3. The alignment mechanism adjusts the mounting slot to face vertically upwards by rotating the two guide wheels relative to each other, thereby ensuring the correct insertion direction of the oil nozzle.

[0019] 4. The fit between the clamping arm and the clamping groove can effectively limit the universal joint during the tightening process. While ensuring the stable clamping of the universal joint, the grease fitting can be tightened to a suitable torque to ensure reliable and secure assembly and prevent loosening. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the structure of this utility model.

[0021] Figure 2 This is a schematic diagram of a universal joint.

[0022] Figure 3 This is a structural schematic diagram of the assembly mechanism of this utility model.

[0023] Figure 4 This is a schematic diagram of the positioning block of this utility model.

[0024] Figure 5 This is a schematic diagram of the structure of the first feeding mechanism of this utility model.

[0025] Figure 6 This is a structural schematic diagram of the first gripping mechanism of this utility model.

[0026] Figure 7 This is a schematic diagram of the structure of the second feeding mechanism of this utility model.

[0027] Figure 8 This is a schematic diagram of the structure of the second gripping mechanism of this utility model.

[0028] Figure 9 This is a structural schematic diagram of the alignment mechanism of this utility model.

[0029] Figure 10 This is a schematic diagram of the material feeding and gripping mechanism of this utility model.

[0030] In the diagram: 1. First feeding mechanism; 11. First feeding assembly; 111. First feeding bracket; 112. Feeding guide rail; 1121. Inner feeding trough; 1122. Outer feeding trough; 113. Lifting cylinder; 114. First feeding cylinder; 2. Second feeding mechanism; 21. Second feeding assembly; 211. Second feeding bracket; 212. Vibrating discharge plate; 213. Clamping arm; 214. Second feeding cylinder; 3. Assembly mechanism; 31. Assembly platform; 32. Positioning block; 321. Positioning inclined surface; 322. Positioning groove; 33. Assembly motor; 12. First gripping mechanism; 121. First gripping bracket; 122. First horizontal movable plate; 123. First horizontal cylinder; 124. First vertical movable plate; 125. First vertical cylinder; 126. 1. Front gripper; 2. Rear gripper; 2. Second gripping mechanism; 2. Second gripping bracket; 2. Second horizontal movable plate; 2. Second horizontal cylinder; 2. Second vertical movable plate; 2. Second vertical cylinder; 2. Movable block; 2. Vacuum suction head; 2. Twisting motor; 2. Pressing arm; 2. Pressing groove; 4. Alignment mechanism; 4. Alignment bracket; 4. First guide wheel; 4. Second guide wheel; 4. Alignment motor; 5. Unloading mechanism; 5. Unloading conveyor belt; 6. Unloading gripping mechanism; 6. Unloading gripping bracket; 6. Unloading horizontal movable plate; 6. Unloading horizontal cylinder; 6. Unloading vertical movable plate; 6. Unloading vertical cylinder; 6. Unloading gripper; 7. Mounting groove; 8. Machine base. Detailed Implementation

[0031] The present invention will be further described below with reference to the accompanying drawings.

[0032] like Figures 1 to 4 As shown, the present invention discloses a universal joint nozzle assembly device, including a machine base 8 and an assembly mechanism 3 mounted on the machine base 8. The assembly mechanism 3 has a first feeding mechanism 1, a second feeding mechanism 2, and a unloading mechanism 5 on its outer side. The first feeding mechanism 1 includes a first feeding component 11 and a first gripping mechanism 12. The second feeding mechanism 2 includes a second feeding component 21 and a second gripping mechanism 22. The device enables fully automatic assembly, transfer, and unloading of universal joints and nozzles. The assembly mechanism 3 includes an assembly platform 31. An assembly motor 33 is installed at the bottom of the assembly platform 31 to drive the assembly platform 31 to rotate intermittently in the horizontal direction, realizing the cyclic transfer of workpieces between multiple assembly stations. Several positioning blocks 32 for placing universal joints are installed on the assembly platform 31. Each positioning block 32 has a positioning inclined surface 321 that cooperates with the universal joint. The positioning inclined surface 321 has a positioning groove 322 for accommodating the end of the universal joint, ensuring the stability and correct posture of the universal joint during the assembly process.

[0033] according to Figures 6 to 10As shown, the first feeding assembly 11 is used to transport universal joints, including a first feeding bracket 111 and a feeding guide rail 112 provided on the first feeding bracket 111. The feeding guide rail 112 has multiple inner feeding slots 1121 evenly distributed on it, and the first feeding bracket 111 has multiple outer feeding slots 1122. Before the assembly begins, the operator places the universal joints into the first feeding bracket 111 in sequence. The lifting cylinder 113 is used to lift the feeding guide rail 112 as a whole, and the first feeding cylinder 114 is used to drive the feeding guide rail 112 to move the universal joints horizontally. Due to the presence of the inner feeding slots 1121, the feeding guide rail 112 will drive the universal joints to move towards the assembly mechanism 3. Then, the lifting cylinder 113 lowers the feeding guide rail 112 and places the universal joints back on the first feeding bracket 111. The first feeding cylinder 114 drives the feeding guide rail 112 to reset. Through such reciprocating motion, the universal joints are transported to the assembly mechanism 3 one by one.

[0034] A first gripping mechanism 12 is provided between the first feeding assembly 11 and the assembly platform 31. The mechanism includes a first gripping bracket 121, a first horizontal movable plate 122 is slidably disposed on the first gripping bracket 121, and the first horizontal movable plate 122 can reciprocate in the horizontal direction under the drive of the first horizontal cylinder 123. A first vertical movable plate 124 is slidably disposed on the horizontal movable plate, and the vertical movable plate can move up and down by the first vertical cylinder 125. A front gripper 126 and a rear gripper 127 are provided at the lower end of the vertical movable plate, which respectively grip and lift the universal joint from the guide rail.

[0035] An alignment mechanism 4 is provided between the assembly mechanism 3 and the first feeding mechanism 1. The alignment mechanism 4 includes an alignment bracket 41, on which a first guide wheel 42 and a second guide wheel 43 are provided. The two wheels rotate relative to each other to form an adjustable angle clamping structure. When the universal joint is fed into the clamping area between the wheels, the two guide wheels are slightly adjusted in posture under the drive of the alignment motor 44, so that the universal joint rotates under the combined force of gravity and friction, thereby achieving that its mounting groove 7 faces upward and its posture is accurate. The adjusted universal joint is clamped again by the front gripper 126 and accurately placed on the positioning block 32 on the assembly platform 31. Its four ends are embedded in the positioning groove 322 to ensure that the mounting groove 7 faces upward.

[0036] In addition, a universal joint positioning detection device is provided on one side of the assembly platform 31. This device uses an electronic measuring instrument to detect in real time whether the universal joint on the positioning block 32 has been successfully delivered and positioned. When the detection signal shows that the universal joint is not in position, the system will automatically issue an alarm and suspend subsequent actions, thereby avoiding problems such as empty grabbing and incorrect installation.

[0037] The second feeding mechanism includes a second feeding bracket 211 and a vibrating discharge plate 212 mounted thereon. The discharge plate can move the oil nozzles along the edge of the plate under the drive of the vibrating motor and finally concentrate them at the discharge end. The discharge end is provided with a clamping arm 213 for clamping a single oil nozzle to be taken. The second feeding cylinder 214 pushes the clamping arm 213 to move the oil nozzles horizontally to below the second gripping mechanism 22.

[0038] The second gripping mechanism 22 includes a second gripping bracket 221. A second horizontal movable plate 222 and a second horizontal cylinder 223 that drives its movement are slidably mounted on the second gripping bracket 221. A second vertical movable plate 224 is slidably mounted on the second horizontal movable plate 222 and is lifted and lowered by a second vertical cylinder 225. A movable block 226 is fixed to the end of the vertical movable plate. A vacuum suction head 227 is mounted on the movable block 226 for suctioning oil nozzles to achieve non-destructive gripping. The movable block 226 is also equipped with a rotary motor 228 for driving... The moving vacuum adsorption head 227 rotates. When the oil nozzle is adsorbed, the second vertical cylinder 225 drives the movable block 226 to descend, inserting the oil nozzle into the universal joint mounting slot 7. During the insertion process, the clamping arm 229 on the movable block 226 moves downward synchronously. The clamping arm 229 is provided with a clamping groove 2291 that matches the universal joint. When tightening, it limits and pressurizes the universal joint to prevent it from rotating or jumping out of the slot. Then, the tightening motor 228 starts and drives the adsorption head to rotate, thereby tightening the oil nozzle into the mounting slot 7 and completing the assembly step.

[0039] The 228 rotary motor uses a servo motor as the drive element. The torque sensor and control module in the servo system monitor the actual torque value in real time during the rotary process. When the oil nozzle is tightened to the set torque value, the servo motor will stop working immediately to ensure that the oil nozzle can be firmly connected to the universal joint without being damaged by excessive tightening force.

[0040] Similarly, an oil nozzle assembly detection device is provided on the other side of the assembly platform 31. Using an electronic measuring instrument, after the oil nozzle is assembled and tightened by the screw motor 228, the depth of the assembled universal joint is detected to determine whether the oil nozzle has been correctly inserted and screwed in place, and whether there are any defects such as looseness or misalignment.

[0041] The unloading mechanism 5 is used to grab the assembled universal joint and output it to the conveyor belt. The unloading mechanism 5 includes an unloading conveyor belt 51 and an unloading gripping mechanism 6. The unloading gripping mechanism 6 includes an unloading gripping bracket 61, on which an unloading horizontal movable plate 62 and an unloading horizontal cylinder 63 are installed. The unloading horizontal movable plate 62 is used to drive the unloading horizontal movable plate 62 to move horizontally. The unloading vertical movable plate 64 is connected below the unloading horizontal movable plate 62 and is driven to move vertically by the unloading vertical cylinder 65. The end of the unloading vertical movable plate 64 is provided with an unloading gripper 66 for gripping the assembled universal joint. When the nozzle assembly inspection device passes the inspection, the unloading gripper 66 grabs the universal joint from the positioning block 32 and transports it to the unloading conveyor belt 51 to complete the unloading. The unloading conveyor belt 51 can further transfer the product to the next station. When the nozzle assembly inspection device fails the inspection, the unloading gripper 66 directly grabs the unqualified nozzle into the unqualified product channel.

[0042] The basic working principle of this utility model is as follows: First, the universal joint and the oil nozzle are respectively laid on the first feeding bracket 111 and the vibrating discharge plate 212. The lifting cylinder 113 lifts the feeding guide rail 112, and at the same time, the first feeding cylinder 114 drives the feeding guide rail 112 to transport the universal joint forward. The rear gripper 127 grabs the universal joint to the alignment mechanism 4. The alignment mechanism 4 rotates relative to the first guide wheel 42 and the second guide wheel 43 to make one end of the universal joint perpendicular to it. Then, the front gripper 126 grabs the universal joint into the positioning groove 322 on the positioning block 32, ensuring that the four ends of the universal joint are engaged in the positioning groove 322. At the same time, the mounting groove 7 is vertically upward. The motor is then assembled. The assembly platform 31 is rotated by the drive cylinder 33, which moves the positioning block 32 to the next station. The second feeding cylinder 214 drives the clamping arm 213 to transport the oil nozzle at the end of the vibrating discharge plate 212 to the second gripping mechanism 22. The vacuum suction head 227 adsorbs the oil nozzle and brings it above the positioning block 32. The second vertical cylinder 225 drives the movable block 226 to move downward and insert the oil nozzle into the mounting slot 7. At the same time, the clamping arm 229 firmly presses the universal joint onto the positioning block 32. The screw motor 228 screws the oil nozzle onto the universal joint to complete the assembly. Then the assembly platform 31 continues to rotate, and the unloading gripping mechanism 6 transfers the assembled universal joint to the unloading conveyor belt 51 for unloading.

[0043] The above description is only a preferred embodiment of the present utility model. Therefore, all equivalent changes or modifications made to the structure, features and principles described in the claims of the present utility model patent application are included in the scope of the present utility model patent application.

Claims

1. A universal joint grease fitting assembly device, comprising a machine base (8), characterized in that, The machine base (8) is provided with an assembly mechanism (3), a first feeding mechanism (1), a second feeding mechanism (2), and a unloading mechanism (5). The assembly mechanism (3) includes an assembly platform (31) and an assembly motor (33) that drives it to rotate. The assembly platform (31) is provided with a positioning block (32). The first feeding mechanism (1) includes a first feeding assembly (11) and a first gripping mechanism (12) for gripping the universal joint. The second feeding mechanism (2) includes a second feeding assembly (21) and a second gripping mechanism (22) for gripping the oil nozzle. The universal joint is provided with a mounting groove (7). The first gripping mechanism (12) grips the universal joint onto the positioning block (32), and the second gripping mechanism (22) places the oil nozzle onto the universal joint, and the oil nozzle is inserted into the mounting groove (7).

2. The universal joint grease fitting assembly equipment according to claim 1, characterized in that: The positioning block (32) is provided with a positioning inclined surface (321) that cooperates with the universal joint, and the positioning inclined surface (321) is provided with a positioning groove (322).

3. The universal joint grease fitting assembly equipment according to claim 1, characterized in that: The first feeding assembly (11) includes a first feeding bracket (111) and a feeding guide rail (112) provided on the first feeding assembly (11). The feeding guide rail (112) is provided with a plurality of inner feeding slots (1121). The first feeding bracket (111) is provided with a plurality of outer feeding slots (1122). The first feeding mechanism (1) is provided with a lifting cylinder (113) for lifting the feeding guide rail (112). The first feeding bracket (111) is provided with a first feeding cylinder (114) on one side to drive the feeding guide rail (112) to be conveyed to the assembly platform (31).

4. The universal joint grease fitting assembly equipment according to claim 1, characterized in that: The first gripping mechanism (12) includes a first gripping bracket (121), a first horizontal movable plate (122) slidably disposed on the first gripping bracket (121) and a first horizontal cylinder (123) for driving its horizontal movement. The first horizontal movable plate (122) is provided with a first vertical movable plate (124) and a first vertical cylinder (125) for driving its vertical movement. The first vertical movable plate (124) is provided with a gripper assembly.

5. The universal joint grease fitting assembly equipment according to claim 1, characterized in that: The second feeding assembly (21) includes a second feeding bracket (211) and a vibrating discharge plate (212) disposed on the second feeding bracket (211). The discharge end of the vibrating discharge plate (212) is provided with a clamping arm (213). The second feeding bracket (211) is provided with a second feeding cylinder (214) that drives the clamping arm (213) to move toward the assembly platform (31).

6. The universal joint grease fitting assembly equipment according to claim 1, characterized in that: The second gripping mechanism (22) includes a second gripping bracket (221), a second horizontal movable plate (222) slidably disposed on the second gripping bracket (221), and a second horizontal cylinder (223) for driving its horizontal movement. The second horizontal movable plate (222) is provided with a second vertical movable plate (224) and a second vertical cylinder (225) for driving its vertical movement. The second vertical movable plate (224) is provided with a movable block (226), and the movable block (226) is provided with a vacuum suction head (227).

7. The universal joint grease fitting assembly equipment according to claim 6, characterized in that: The movable block (226) is also equipped with a rotary motor (228), which drives the vacuum suction head (227) to screw the oil nozzle onto the universal joint.

8. The universal joint grease fitting assembly equipment according to claim 6, characterized in that: The movable block (226) is also provided with a clamping arm (229), and the clamping arm (229) is provided with a clamping groove (2291) that cooperates with the universal joint.

9. The universal joint grease fitting assembly equipment according to claim 1, characterized in that: A aligning mechanism (4) is provided between the first feeding mechanism (1) and the assembly mechanism (3). The aligning mechanism (4) includes an aligning bracket (41) and a first guide wheel (42) and a second guide wheel (43) rotatably mounted on the aligning bracket (41). The second guide wheel (43) abuts against the first guide wheel (42). An aligning motor (44) for driving the first guide wheel (42) to rotate is provided on the aligning bracket (41).

10. The universal joint grease fitting assembly equipment according to claim 1, characterized in that: The unloading mechanism (5) includes an unloading conveyor belt (51), and an unloading gripping mechanism (6) is provided between the unloading conveyor belt (51) and the assembly platform (31). The unloading gripping mechanism (6) includes an unloading gripping bracket (61), an unloading horizontal movable plate (62) slidably disposed on the unloading gripping bracket (61), and an unloading horizontal cylinder (63) that drives its horizontal movement. The unloading horizontal movable plate (62) is provided with an unloading vertical movable plate (64) and an unloading vertical cylinder (65) that drives its vertical movement. The unloading vertical movable plate (64) is provided with unloading grippers (66).