Automatic press-fitting mechanism for needle-type spherical collar

Abstract

The application provides a needle-type spherical collar automatic press-fitting mechanism, which can be compatible with press-fitting of needle-type spherical collars with different outer diameters by adjusting the position of a detection block and changing a quick-change head, so as to prevent incorrect assembly, the three-pin body shaft assembly is heavy, and the robot carrying reduces the working strength of workers, improves the stability of operation, realizes full-automatic assembly, guarantees the stability and consistency of products, and improves the assembly efficiency.

Description

Technical Field

[0001] This invention relates to the field of automatic production equipment for constant velocity drive shafts, and specifically to an automatic pressing mechanism for needle roller type spherical collars. Background Technology

[0002] The constant velocity drive shaft is one of the most important components of an automotive transmission system. It connects two shafts whose axes do not coincide, enabling them to transmit motion at the same angular velocity. Its function is to transmit engine power from the transmission to the wheels of the vehicle, meeting the rotational angle requirements of the outer end of the drive shaft.

[0003] The three-pin assembly for universal angle adjustment is equipped with three needle roller ball collars, which are currently assembled manually. The collars are manually rotated at an angle and then fitted onto the three-pin assembly. After installation, if the transport process is unstable, the collars are prone to falling off, resulting in inconsistent product quality and low efficiency. Secondly, the outer diameters of different collar models differ very little, making incorrect installation easy and placing high demands on on-site workers and management. Furthermore, the three-pin assembly is heavy, and frequent handling leads to significant labor intensity for workers. Summary of the Invention

[0004] To address the problems mentioned above, this invention provides an automatic press-fitting mechanism for needle roller spherical shaft collars. By adjusting the position of the detection block and changing the quick-change head, it can be compatible with the press-fitting of various needle roller spherical shaft collars with different outer diameters, eliminating the possibility of incorrect assembly. The three-pin shaft assembly is relatively heavy, and robotic handling reduces the workload of workers, improves operational stability, achieves fully automatic assembly, ensures product stability and consistency, and improves assembly efficiency.

[0005] The technical solution provided by this invention is as follows:

[0006] An automatic pressing mechanism for needle roller spherical shaft collars includes a robot assembly. An end effector is located below the robot assembly, and a fixed platform is located at one end of the end effector. A pressing mechanism and a pushing mechanism are mounted on the fixed platform. A gear bearing is located below the pressing mechanism, and a clamping cylinder is located below the gear bearing. A servo motor is located on one side of the gear bearing. The servo motor rotates clockwise, driving the pressing mechanism to rotate 120°. Similarly, a second needle roller spherical shaft collar is pushed into a quick-change head, until a third needle roller spherical shaft collar is pushed into the quick-change head. Then, the mechanism rotates clockwise by 10°. A slide is located on one side of the pushing mechanism. The slide is equipped with a detection block, and a centrifugal feeder is located at the end of the slide away from the pushing mechanism. The centrifugal feeder has a material channel adapted to the slide, and the height of the material channel is higher than the height of the slide. The control process of this invention is as follows: the robot component drives the end effector to grab the three-pin shaft assembly from the conveyor line, the pressing mechanism resets, the needle roller ball bearing is fed, the pressing cylinder extends, the pressing mechanism presses the needle roller ball bearing on the quick-change head into the three-pin shaft assembly at the same time, the pressing cylinder retracts, the pressing mechanism opens, the three-pin shaft assembly is taken away, and a three-pin shaft assembly to be pressed is placed on top, and the servo motor drives the pressing mechanism to reset.

[0007] Preferably, the centrifugal feeder has a circular cross-section and a notch at the bottom of the feed channel. The height of the notch is higher than the thickness of the needle roller spherical rings. The feeders are stacked on the centrifuge turntable. When the power is turned on, the centrifuge rotates and arranges the needle roller spherical rings one by one in the discharge channel.

[0008] Preferably, the slide is equipped with a sensor that monitors the diameter of the needle roller spherical collar. The slide is inclined, with one end of the slide closer to the material channel being higher than the other end. The needle roller spherical collars at the material channel outlet fall onto the slide one by one. The detection block and sensor determine whether the outer diameter of the material is qualified. Then, through its own weight and the action of the ramp, it slides onto the pushing mechanism.

[0009] Preferably, the detection block has several channels, each with a different diameter, and the detection block can slide on a slide rail. By adjusting the detection block, the detection of materials of different sizes can be controlled.

[0010] Preferably, the feeding mechanism has a U-shaped outlet on the side near the feeding mechanism, and a baffle is provided below the U-shaped outlet. The sensor on the feeding mechanism detects the needle roller spherical collar, and at the same time, the sensor detects that there is no needle roller spherical collar on the quick change head. The feeding cylinder pushes the first needle roller spherical collar into the quick change head through the U-shaped outlet.

[0011] Preferably, the feeding mechanism is equipped with a feeding cylinder, which is on the same horizontal line as the feeding mechanism. The feeding mechanism is equipped with a sensor. The sensor on the feeding mechanism detects the needle roller spherical collar and at the same time detects that there is no material on the quick change head. The feeding cylinder pushes the first needle roller spherical collar into the quick change head.

[0012] Preferably, a first sensor is provided between the pushing mechanism and the pressing mechanism. The first sensor is symmetrically arranged at both ends of the pushing mechanism. After the first sensor detects the material, the servo motor rotates, driving the pressing mechanism to rotate 120 degrees.

[0013] Preferably, the pressing mechanism includes a three-pin shaft assembly, a central support column below the three-pin shaft assembly, a sleeve support block between the central support columns, three gaps on the sleeve support block, three rocker arms corresponding to the three gaps on the sleeve support block, quick-change heads on the rocker arms, and grooves on the quick-change heads. The size of the grooves on the quick-change heads is adapted to the diameter of the needle roller ball collar, and the three gaps on the sleeve support block are spaced 120 degrees apart.

[0014] Preferably, a push block is provided below the pressing mechanism. When the push block moves upward, it simultaneously pulls the three swing arms towards the center, thereby pressing the material on the quick-change head onto the three-pin shaft assembly.

[0015] Preferably, the fixed frame is equipped with second sensors. When the material on the quick-change head is detected simultaneously, the pressing cylinder extends and drives the push block to move upward.

[0016] The advantages of this invention are as follows:

[0017] 1. Strong compatibility: By adjusting the position of the detection block and changing the quick-change head, it can be compatible with the press-fitting of various needle roller ball collars with different outer diameters, eliminating the possibility of incorrect installation.

[0018] 2. Saves labor: The three-pin shaft assembly is relatively heavy. Using robots for handling reduces the workload of workers and improves the stability of operation.

[0019] 3. Flexibility: Enables fully automated assembly, ensuring product stability and consistency, and improving assembly efficiency. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments or background art of the present invention, the drawings used in the description of the embodiments or background art will be briefly introduced below. Obviously, the drawings described below are only embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0021] Figure 1 This is a schematic diagram of the structure of the present invention;

[0022] Figure 2 This is a schematic diagram of the structure of the workbench of the present invention;

[0023] Figure 3This is a schematic diagram of the structure of the workbench of the present invention.

[0024] Figure 4 This is a schematic diagram of the pressing mechanism of the present invention;

[0025] Figure 5 This is a schematic diagram of the feeding mechanism of the present invention;

[0026] Figure 6 This is a schematic diagram of the structure of the three-pin shaft assembly of the present invention.

[0027] In the diagram: 1. Centrifugal feeder, 2. Feed channel, 3. Fixed frame, 4. Slide rail, 5. Detection block, 6. Pushing mechanism, 7. Pressing mechanism, 8. Pressing cylinder, 9. Servo motor, 10. Gear bearing, 11. Robot component, 12. End effector, 13. Three-pin shaft assembly, 14. First sensor, 15. Second sensor, 61. Pushing cylinder, 62. Baffle plate, 81. Pushing block, 82. Swing arm, 83. Quick change head, 84. Central support column, 85. Leather sleeve support block. Detailed Implementation

[0028] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0029] Example 1:

[0030] An automatic press-fitting mechanism for needle roller type ball collars, such as Figure 1As shown, the system includes a robot assembly 11. Below the robot assembly 11 is an end effector 12. One end of the end effector 12 is equipped with a fixed platform 3. The fixed platform 3 is equipped with a pressing mechanism 7 and a pushing mechanism 6. Below the pressing mechanism 7 is a gear bearing 10, and below the gear bearing 10 is a clamping cylinder 8. A servo motor 9 is located on one side of the gear bearing 10. The servo motor 9 rotates clockwise, causing the pressing mechanism 7 to rotate 120°. Similarly, the second material is pushed onto the quick-change head 83 until the third material is pushed onto the quick-change head 83. Then, it rotates clockwise by 10°. A slide rail 4 is located on one side of the pushing mechanism 6, and a detection block 5 is located on the slide rail 4. A centrifugal feeder 1 is provided at the end of the slide 4 away from the pushing mechanism 6. The centrifugal feeder 1 is provided with a material channel 2 adapted to the slide 4. The height of the material channel 2 is higher than the height of the slide 2. The control process of the present invention is as follows: the robot component 11 drives the end effector 12 to grab the three-pin shaft assembly 13 from the conveyor line, the pressing mechanism 7 resets, the roller-type spherical collar is fed, the pressing cylinder 8 extends, the pressing mechanism 7 presses the material on the quick change head 83 onto the three-pin shaft assembly 13 at the same time, the pressing cylinder 8 retracts, the pressing mechanism 7 opens, the three-pin shaft assembly 13 is taken away, and a three-pin shaft assembly 13 to be pressed is placed on top, and the servo motor 9 drives the pressing mechanism 7 to reset.

[0031] like Figure 1 As shown, robot component 11 drives end effector 12 to load and unload materials. Robot component 11 drives end effector 12 to move directly above three-pin shaft assembly 13, clamps three-pin shaft assembly 13, and then moves it directly above pressing mechanism 7 to insert it into central support column 84. Sleeve support block 85 lifts the sleeve in three-pin shaft assembly 13 upward. Finally, robot component 11 drives end effector 12 to move away.

[0032] like Figure 1 and Figure 2 As shown, the centrifugal feeder 1 has a circular cross-section, and the material channel 2 has a notch at the bottom. The height of the notch is higher than the thickness of the material. The material is stacked on the centrifuge turntable. When the power is turned on, the centrifuge rotates and arranges the material one by one in the discharge channel.

[0033] like Figure 1 and Figure 2 As shown, a first sensor 14 is provided between the pushing mechanism 6 and the pressing mechanism 7. The first sensor 14 is symmetrically arranged at both ends of the pushing mechanism 6. After the first sensor 14 detects the roller ball collar on the quick change head 83, the servo motor 9 rotates, driving the pressing mechanism 7 to rotate 120°.

[0034] like Figure 2As shown, the slide 4 is equipped with a sensor to monitor the diameter of the needle roller spherical collar. The slide 4 is inclined, with one end of the slide 4 closer to the material channel being higher than the other end. The needle roller spherical collars at the outlet of the material channel 2 fall onto the slide 4 one by one. The detection block 5 and the sensor determine whether the outer diameter of the material is qualified. Then, through its own weight and the action of the ramp, it slides onto the pushing mechanism 6.

[0035] Example 2:

[0036] An automatic press-fitting mechanism for needle roller type ball collars, such as Figure 1 As shown, the system includes a robot assembly 11. Below the robot assembly 11 is an end effector 12. One end of the end effector 12 is equipped with a fixed platform 3. The fixed platform 3 is equipped with a pressing mechanism 7 and a pushing mechanism 6. Below the pressing mechanism 7 is a gear bearing 10, and below the gear bearing 10 is a clamping cylinder 8. A servo motor 9 is located on one side of the gear bearing 10. The servo motor 9 rotates clockwise, driving the pressing mechanism 7 to rotate 120°. A slide rail 4 is located on one side of the pushing mechanism 6, and a detection block 5 is located on the slide rail 4. A centrifugal feeder 1 is located at the end of the slide rail 4 away from the pushing mechanism 6. The machine 1 is equipped with a material channel 2 that is adapted to the slide rail 4. The height of the material channel 2 is higher than that of the slide rail 2. The control process of the present invention is as follows: the robot component 11 drives the end effector 12 to grab the three-pin shaft assembly 13 from the conveyor line, the pressing mechanism 7 resets, the needle roller ball bearing is fed, the pressing cylinder 8 extends, the pressing mechanism 7 presses the needle roller ball bearing on the quick change head 83 into the three-pin shaft assembly 13 at the same time, the pressing cylinder 8 retracts, the pressing mechanism 7 opens, the three-pin shaft assembly 13 is taken away, and the three-pin shaft assembly 13 to be pressed is placed on top, and the servo motor 9 drives the pressing mechanism 7 to reset.

[0037] like Figure 2 As shown, the detection block 5 has several channels, each with a different diameter. The detection block 5 can slide on the slide rail 4. The size of the material to be detected can be controlled by sliding the detection block 5. The detection block 5 has a boss with a threaded hole. The detection block 5 is fixed to the slide rail bolt through the threaded hole on the boss.

[0038] like Figure 5 As shown, the feeding mechanism 6 has a U-shaped outlet on the side near the pressing mechanism 7. A baffle 62 is provided below the U-shaped outlet. A sensor is provided on the feeding mechanism 6. The sensor on the feeding mechanism 6 detects the needle roller ball collar. At the same time, the sensor detects that there is no material on the quick change head 83. The feeding cylinder 61 slides the first material into the quick change head 83 through the U-shaped outlet.

[0039] like Figure 2 As shown, the fixed frame 3 is equipped with second sensors 15. When the material on the quick-change head 83 is detected at the same time, the pressing cylinder 8 extends and drives the push block 81 to move upward.

[0040] Example 3:

[0041] An automatic press-fitting mechanism for needle roller type ball collars, such as Figure 1 As shown, the system includes a robot assembly 11. Below the robot assembly 11 is an end effector 12. One end of the end effector 12 is equipped with a fixed platform 3. The fixed platform 3 is equipped with a pressing mechanism 7 and a pushing mechanism 6. Below the pressing mechanism 7 is a gear bearing 10, and below the gear bearing 10 is a clamping cylinder 8. A servo motor 9 is located on one side of the gear bearing 10. One side of the pushing mechanism 6 is equipped with a slide rail 4, on which a detection block 5 is mounted. At the end of the slide rail 4 furthest from the pushing mechanism 6 is a centrifugal feeder 1, on which a material feeder adapted to the slide rail 4 is mounted. The height of the material channel 2 is higher than that of the slide 2. The control process of this invention is as follows: the robot component 11 drives the end effector 12 to grab the three-pin shaft assembly 13 from the conveyor line, the pressing mechanism 7 resets, the needle roller ball bearing is fed, the pressing cylinder 8 extends, the pressing mechanism 7 presses the needle roller ball bearing on the quick change head 83 into the three-pin shaft assembly 13 at the same time, the pressing cylinder 8 retracts, the pressing mechanism 7 opens, the three-pin shaft assembly 13 is taken away, and the three-pin shaft assembly 13 to be pressed is placed on top, and the servo motor 9 drives the pressing mechanism 7 to reset.

[0042] like Figure 4 As shown, the pressing mechanism 7 includes a three-pin shaft assembly 13. A central support column 84 is provided below the three-pin shaft assembly 13. A leather sleeve support block 85 is provided between the central support columns 84. The leather sleeve support block 85 has three gaps. Three rocker arms 82 are provided corresponding to the three gaps of the leather sleeve support block 85. A quick-change head 83 is provided on the rocker arm 82. The quick-change head 83 has a groove. The size of the groove of the quick-change head 83 is adapted to the diameter of the needle roller ball collar.

[0043] like Figure 4 As shown, a push block 81 is provided below the pressing mechanism 7. When the push block 81 moves upward, the three swing rods 82 simultaneously hug each other in the middle, thereby pressing the material on the quick change head 83 into the three-pin shaft assembly 13.

[0044] like Figure 4 and Figure 5 As shown, the three gaps of the leather sleeve support block 85 are set at 120-degree intervals. After the second sensor 15 detects three materials at the same time, the pressing cylinder 8 extends, driving the push block 81 to move upward, and the three swing rods 82 simultaneously hug each other in the middle, thereby pressing the material on the quick change head 83 into the three-pin shaft assembly 13.

[0045] The advantages of this invention are as follows:

[0046] 1. Strong compatibility: By adjusting the position of the detection block and changing the quick-change head, it can be compatible with the pressing of materials with different outer diameters, eliminating the possibility of incorrect loading.

[0047] 2. Saves labor: The three-pin shaft assembly is relatively heavy. Using robots for handling reduces the workload of workers and improves the stability of operation.

[0048] 3. Flexibility: Enables fully automated assembly, ensuring product stability and consistency, and improving assembly efficiency.

[0049] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the invention should be included within the protection scope of the present invention.

Claims

1. An automatic pressing mechanism for needle roller type spherical collars, comprising a robot assembly (11), characterized in that, The robot component (11) is provided with an end effector (12) below it. One end of the end effector (12) is provided with a fixed platform (3). The fixed platform (3) is provided with a pressing mechanism (7) and a pushing mechanism (6). The pressing mechanism (7) is provided with a gear bearing (10) below it. The gear bearing (10) is provided with a pressing cylinder (8) below it. The gear bearing (10) is provided with a servo motor (9) on one side. The pushing mechanism (6) is provided with a slide (4) on one side. The slide (4) is provided with a detection block (5). The end of the slide (4) away from the pushing mechanism (6) is provided with a centrifugal feeder (1). The centrifugal feeder (1) is provided with a material channel (2) adapted to the slide (4). The height of the material channel (2) is higher than the height of the slide (4). The material channel (2) and the slide (4) are on the same straight line. The pressing mechanism (7) includes a central support column (84) and three rocker arms (82). The rocker arms (82) are equipped with quick-change heads (83). The quick-change heads (83) are equipped with grooves. The size of the grooves of the quick-change heads (83) is adapted to the diameter of the material. When the push block (81) moves upward, it supports the three rocker arms (82) to hug the center and press the material into the three-pin shaft assembly (13).

2. The automatic pressing mechanism for a needle roller type spherical collar according to claim 1, characterized in that, The centrifugal feeder (1) has a circular cross-section, and a notch is provided below the material channel (2), with the height of the notch being higher than the thickness of the material.

3. The automatic pressing mechanism for a needle roller type spherical collar according to claim 1, characterized in that, The slide (4) is equipped with a sensor for monitoring the diameter of the material. The slide (4) is inclined, with one end of the slide (4) closer to the material channel (2) being higher than the other end.

4. The automatic pressing mechanism for a needle roller type spherical collar according to claim 1, characterized in that, The detection block (5) has several channels and can slide on the slide (4).

5. The automatic pressing mechanism for a needle roller type spherical collar according to claim 1, characterized in that, The feeding mechanism (6) has a U-shaped outlet on the side near the pressing mechanism (7), and a baffle (62) is provided below the U-shaped outlet.

6. The automatic pressing mechanism for a needle roller type spherical collar according to claim 1 or 5, characterized in that, The pushing mechanism (6) is equipped with a pushing cylinder (61), and the pushing cylinder (61) and the pushing mechanism (6) are on the same horizontal line.

7. The automatic pressing mechanism for a needle roller type spherical collar according to claim 1, characterized in that, A first sensor (14) is provided between the pushing mechanism (6) and the pressing mechanism (7). The first sensor (14) is symmetrically arranged at both ends of the pushing mechanism (6). After the first sensor (14) detects the material, the servo motor (9) rotates, driving the pressing mechanism (7) to rotate 120 degrees.

8. The automatic pressing mechanism for a needle roller type spherical collar according to claim 1, characterized in that, The three swing arms (82) are arranged at 120-degree intervals. The central support column (84) is surrounded by a leather sleeve block (85), and the leather sleeve block (85) has three gaps corresponding to the swing arms (82).

9. The automatic pressing mechanism for a needle roller type spherical collar according to claim 1, characterized in that, The fixed platform (3) is equipped with second sensors (15). When the material on the quick-change head (83) is detected at the same time, the pressing cylinder (8) extends and drives the push block (81) to move upward.

10. The automatic pressing mechanism for a needle roller type spherical collar according to claim 1, characterized in that, The pressing mechanism (7) includes a three-pin shaft assembly (13), a central support column (84) is provided below the three-pin shaft assembly (13), a leather sleeve support block (85) is provided between the central support columns (84), the leather sleeve support block (85) is provided with three gaps, and three swing rods (82) are provided corresponding to the three gaps of the leather sleeve support block (85).

Images