Automobile swing arm shaft sleeve press fitting device

Abstract

The invention relates to the technical field of automobile part machining, and particularly discloses an automobile swing arm shaft sleeve press-fitting device which comprises a first fixing mechanism, a second fixing mechanism and a press-fitting mechanism, the first fixing mechanism and the second fixing mechanism are matched and used for fixing a swing arm, and after the swing arm is fixed, a shaft sleeve is pressed into the swing arm through the press-fitting mechanism. The magnetic fluid has the fluidity and hardening characteristics before and after providing a magnetic field for the magnetic fluid, can fit the shape of the swing arm to support and limit the swing arm, and is matched with the second fixing mechanism to downwards press the swing arm from the top of the swing arm, so that the swing arm is prevented from tilting in the press-fitting process, the stability of the swing arm in the press-fitting process is guaranteed, and the press-fitting efficiency is improved. And the swing arm can be conveniently pressed down according to the size and shape of the swing arm, the application range is widened, the situation that the limiting effect on the swing arm is reduced due to the fact that the shape of the swing arm is usually arc or irregular is avoided, and therefore the stability of follow-up shaft sleeve press fitting is improved.

Description

Technical Field

[0001] This invention relates to the field of automotive parts processing technology, specifically to an automotive swing arm bushing press-fitting device. Background Technology

[0002] The swing arm bushing (shroud) is a flexible component that connects the swing arm to the vehicle body. Its core function is to buffer vibrations, allow relative movement, and withstand various forces.

[0003] CN211072508U discloses a lower control arm bushing press-fitting device, which aims to press-fit the front and rear bushings onto the control arm body in one clamping operation, reducing the number of clamping operations and improving the production efficiency of the lower control arm.

[0004] Based on existing technologies, the following problems exist: Existing automotive swing arm bushing press-fitting devices often experience instability during press-fitting due to the irregular shape and curvature of the swing arm. This instability affects the stability of the bushing during subsequent press-fitting, reducing press-fitting quality and overall stability in actual use. Furthermore, since the bushing typically comprises an inner metal bushing, an outer metal bushing, and a rubber body between them, and the inner and outer metal bushings can independently deflect or tilt under the influence of the rubber body, the probability of bushing tilting after press-fitting increases, further reducing the press-fitting effect. Referring to the aforementioned applications, which use multiple fixing mechanisms to secure the swing arm from multiple positions, their applicability is limited. Additionally, the typically curved surface of the swing arm makes it prone to instability, further impacting the stability of subsequent press-fitting. Therefore, this automotive swing arm bushing press-fitting device is proposed to address these issues. Summary of the Invention

[0005] To achieve the above objectives, the present invention provides the following technical solution: an automotive swing arm bushing press-fitting device, comprising a press-fitting machine, a bushing, and a swing arm; the bushing includes an inner metal ring, an outer metal ring, and a rubber body disposed between the inner and outer metal rings; and further comprises: A chassis is fixedly mounted inside the press-fitting machine. A turntable is rotatably mounted on the top of the chassis. A first fixing mechanism arranged in a circular array is mounted on the top of the turntable. A second fixing mechanism and a press-fitting mechanism are mounted on the top of the chassis, outside the turntable. The first and second fixing mechanisms cooperate to fix the swing arm. After the swing arm is fixed, the press-fitting mechanism presses the bushing into the swing arm. The first fixing mechanism includes: The base is fixed on the top of the turntable. Support plates are fixed on both sides of the top of the base. A box is fixed on the top of the support plates. The support plates make a gap between the bottom of the box and the top of the base. One side of the box is designed to be open. The inner wall of the box is provided with a flexible bag for storing magnetic fluid. An adjustment plate is slidably mounted on the open side of the cabinet to adjust the size of the opening. The adjustment plate has an L-shaped design and extends to the bottom of the cabinet.

[0006] Furthermore, a second servo motor is fixedly installed inside the press machine, and the output shaft of the second servo motor is fixedly connected to the center of the turntable so that the second servo motor can drive the turntable to rotate. The first fixing mechanism also includes: The first electric push rod is fixedly installed at the bottom of the box, and the adjustment plate is located on one side of the bottom of the box and is fixedly connected to the telescopic shaft of the first electric push rod; A limiting groove is provided on the top of one side of the adjustment plate located at the bottom of the box, and is fitted onto the side wall of one of the support plates, so that the adjustment plate can move along the side wall of the support plate.

[0007] Furthermore, the second fixing mechanism includes: The first robotic arm is fixedly mounted on the top of the chassis and located outside the turntable. The free end of the first robotic arm is fixedly mounted with a first connecting frame. The top of the first connecting frame is fixedly mounted with a second electric push rod. The telescopic shaft of the second electric push rod extends to the bottom of the first connecting frame. The second connecting frame is fixedly installed at the bottom of the telescopic shaft of the second electric push rod. A mounting plate is fixedly installed on the inner side of the second connecting frame. There is a gap between the top of the mounting plate and the top of the inner side of the second connecting frame. The top of the mounting plate is provided with spaced mounting holes. Fixing components are installed and removed from the bottom of the mounting plate through the mounting holes.

[0008] Furthermore, the fixing component includes: The first screw is fitted into the mounting hole and fixed to the mounting plate by a nut. A column is fixed at the bottom of the first screw. A first groove is formed at the bottom of the column. A second groove is formed on the inner wall of the top of the first groove. The inner diameter of the second groove is larger than that of the first groove. A first electromagnet is fixedly disposed on the top inner wall of the second groove. The second electromagnet is sleeved on the inner wall of the second groove. A first connecting rod is fixedly disposed on the side of the second electromagnet away from the first electromagnet. A first spring is sleeved on the side wall of the first connecting rod. A retaining ring is fixedly sleeved on the inner side wall of the second groove. A pressure sensor is fixedly mounted on the top of the retaining ring and contacts the bottom of the first spring. Both the pressure sensor and the retaining ring are sleeved on the side wall of the first connecting rod.

[0009] Furthermore, the fixing component also includes: A movable ring is fitted into the second groove. A second connecting rod is fixedly fitted on the inner wall of the movable ring. The second connecting rod extends along the first groove to the bottom of the column. The top of the second connecting rod is fixedly connected to the bottom of the first connecting rod. A second spring is fitted on the side wall of the end of the second connecting rod located in the second groove. The second connecting rod is hollow and has an open bottom. The ball seat is fixedly installed at one end of the second connecting rod located at the bottom of the column. The top and bottom of the ball seat are both designed to be open. A universal ball is fitted on the inner wall of the ball seat. A third connecting rod is fixedly installed on the side wall of the universal ball. The top and bottom of the third connecting rod extend into the second connecting rod and the bottom of the ball seat, respectively. A vacuum suction cup is fixedly installed at one end of the third connecting rod located at the bottom of the ball seat.

[0010] Furthermore, the fixing component also includes: The movable channel is opened on the side wall of the second connecting rod and arranged in a ring array. The inner wall of the movable channel is fitted with a movable plate. The side of the movable plate that is far away from each other is fixedly connected to the inner wall of the first groove. The side of the movable plate that is close to each other is fixedly fitted with a limiting cylinder. The inner diameter of the limiting cylinder gradually decreases from the side away from the ball seat to the side close to the ball seat, and the limiting cylinder is made of elastic rubber material.

[0011] Furthermore, the pressing mechanism includes: The second robotic arm is fixedly mounted on the top of the chassis and located outside the turntable. The free end of the second robotic arm is equipped with a pressing assembly, which includes: An arc-shaped plate is fixedly mounted on the free end of the second robotic arm. The upper inner end and the lower inner end of the arc-shaped plate are respectively fixed with a plate body and a cover body. The bottom of the cover body is designed to be open, and the top of the cover body is provided with a positioning mechanism for positioning the inner metal ring and the outer metal ring. The third electric actuator is fixedly installed at the top of the plate, and its telescopic shaft extends to the bottom of the plate.

[0012] Furthermore, the press-fit assembly also includes: The fan plate is fixed at the bottom of the telescopic shaft of the third electric push rod. The bottom of the fan plate is fixed with a ring array of lifting rods. The lifting rods pass through the top of the cover and extend into the cover, so that the lifting rods can rise and fall along the top of the cover. The first pressure ring is fixedly installed at the bottom of the lifting rod and sleeved on the inner side wall of the cover. The inner wall of the first pressure ring is threaded with a second pressure ring. The top of the second pressure ring is fixedly provided with a rotating rod extending to the top of the cover. The top of the cover is provided with a first through groove that matches the rotation trajectory of the rotating rod. The outer wall of the first pressure ring is provided with a second through groove arranged in a ring array.

[0013] Furthermore, the positioning mechanism includes: The first servo motor is fixedly mounted on the top of the cover. The output shaft of the first servo motor is fixedly mounted on the second screw through a coupling. The bottom of the second screw extends into the cover. The side wall of the second screw located inside the cover is provided with spaced first clamping components. The side wall of the second screw located at the top of the cover is provided with a gear set for transmission. A gear ring is rotatably mounted on the top of the cover. The top of the cover is rotatably equipped with a first gear arranged in a ring array. The inner wall of the first gear is fixed with a third screw extending into the cover. The side wall of the third screw located inside the cover is provided with a second clamping assembly arranged at intervals. Both the second and third screws are bidirectional screws, and the bidirectional threaded grooves on the side walls of the second and third screws are arranged at intervals. The inner and outer walls of the gear ring mesh with the gear set and the first gear, respectively, so that the first servo motor can synchronously drive the second and third screws to rotate.

[0014] Furthermore, the first clamping component includes: Two threaded tubes are threaded to the side wall of the second screw, respectively, to be threaded to the bidirectional threaded groove of the second screw. The outer walls of the two threaded tubes are respectively fixed with a first clamping frame and a second clamping frame arranged in a ring array. A hinge shaft is rotatably provided on the side of the first and second clamping frames that are close to each other. A pulley is rotatably provided at the middle end of the side wall of the hinge shaft. The positioning mechanism further includes: The limiting plate is fixedly installed on the top inner wall of the cover and is arranged alternately with the first clamping frame. The limiting plate is arranged in a ring array and is slidably connected to the outer wall of the threaded tube.

[0015] This invention provides a press-fit device for automotive swing arm bushings. Compared with the prior art, it has the following advantages: 1. This invention utilizes the fluidity and hardening properties of the magnetorheological fluid before and after applying a magnetic field to support and limit the shape of the swing arm. In conjunction with the second fixing mechanism, it presses down on the top of the swing arm to prevent it from tilting up during the pressing process, ensuring the stability of the swing arm during pressing. It also facilitates pressing down on the swing arm according to its size and shape, expanding its applicability. It avoids reducing the limiting effect on the swing arm due to its typically curved or irregular shape, thereby improving the stability of the subsequent pressing of the bushing.

[0016] 2. The present invention enables the vacuum suction cup to adhere to the surface of the swing arm by using a universal ball and ball seat. Since the surface of the swing arm usually has a certain curvature, it is convenient for the vacuum suction cup to adhere to the surface of the swing arm, thereby stabilizing the downward pressure on the swing arm. It is also convenient to pick up and pull up the swing arm with the bushing after the magnetofluid restores its flexibility. Thus, the swing arm is transferred to the designated position under the action of the first robotic arm, which is convenient for the next press-fitting use. The height of the vacuum chuck of each fixing component can be adjusted independently by using the first and second electromagnets, which makes it easy to fix the component according to the shape of the swing arm and ensures the stability of the fixation.

[0017] 3. The present invention uses the inner diameter of the limiting cylinder to gradually decrease from the side away from the ball seat to the side closer to the ball seat, thereby gradually straightening the upper end of the third connecting rod. This is to prevent the vacuum suction cup from affecting the next use due to excessive angular deviation after one clamping and adsorption. In addition, since the limiting cylinder is made of elastic rubber material, the third connecting rod can overcome the elastic deflection of the limiting cylinder, so as not to affect the vacuum suction cup's fit to the shape of the swing arm for clamping and adsorption.

[0018] 4. The present invention uses a threaded connection between the first and second pressure rings to facilitate the adjustment of the height of the first pressure ring. This adjustment is based on the axial height of the inner and outer metal rings, ensuring that the first and second pressure rings press down on the inner and outer metal rings in a horizontal state. This avoids the situation where the inner and outer metal rings are pressed down only to the one with the higher protrusion due to the height difference between them, thus ensuring the stability of the pressing down and reducing the probability of the inner and outer metal rings tilting. The first and second pressure rings are threaded together so that the third electric push rod can synchronously drive the first and second pressure rings to rise and fall without affecting the adjustment of the height difference between the bottoms of the first and second pressure rings. Otherwise, it does not affect the use of the first and second clamping components.

[0019] 5. The present invention uses the second screw and the third screw to limit the first clamping assembly and the second clamping assembly from the inner wall of the inner metal ring and the outer wall of the outer metal ring, respectively, and facilitates the first pressure ring and the second pressure ring to press down on the inner metal ring and the lower metal ring, thereby reducing the probability of the inner metal ring and the outer metal ring tilting during the pressing process and further improving the stability of the press-fit bushing. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the press-fitting machine part of the present invention; Figure 3 This is a schematic diagram of the structure of the second servo motor, turntable, first fixing mechanism, second fixing mechanism and pressing mechanism of the present invention; Figure 4 This is a schematic diagram of the swing arm, the first fixing mechanism, the second fixing mechanism, and the pressing mechanism of the present invention; Figure 5 This is a schematic diagram of the first fixing mechanism, the second fixing mechanism, and the pressing mechanism of the present invention; Figure 6 This is a schematic diagram of the first fixing mechanism and the swing arm structure of the present invention; Figure 7 This is an exploded view of the first fixing mechanism of the present invention; Figure 8 This is a schematic diagram of the second fixing mechanism of the present invention; Figure 9 This is a schematic diagram of the fixing component, mounting plate, and mounting hole structure of the present invention; Figure 10 This is a schematic diagram of the fixed component structure of the present invention; Figure 11 This is a schematic diagram of the longitudinal sectional structure of the column of the present invention; Figure 12 For the present invention Figure 11 A magnified structural diagram of A in the middle; Figure 13 This is an exploded view of the fixed component of the present invention; Figure 14 This is a schematic diagram of the pressing mechanism of the present invention; Figure 15 This is a schematic diagram of the press-fit assembly structure of the present invention; Figure 16 This is a schematic diagram of the third electric push rod, plate, first pressure ring, lifting rod and fan plate structure of the present invention; Figure 17 This is a schematic diagram of the longitudinal cross-sectional structure of the bushing of the present invention; Figure 18 This is a schematic diagram of the bushing, first pressure ring, and second pressure ring of the present invention; Figure 19 This is a schematic diagram of the positioning mechanism and the second through groove structure of the present invention; Figure 20 This is a schematic diagram of the bushing, limiting plate, first clamping assembly, second clamping assembly, second screw and third screw of the present invention; Figure 21 This is a schematic diagram of the structure of the first clamping assembly, the second clamping assembly, the second screw, the third screw, and the limiting plate of the present invention; Figure 22 This is a schematic diagram of the first clamping component and the limiting plate structure of the present invention.

[0021] The reference numerals in the above figures are as follows: 1. Pressing machine; 2. Chassis; 3. Turntable; 4. First fixing mechanism; 5. Swing arm; 6. Second fixing mechanism; 7. Pressing mechanism; 8. Second servo motor; 9. Bushing; 41. Box body; 42. Support plate; 43. Base; 44. Adjustment plate; 45. Flexible bag; 46. First electric push rod; 47. Limiting groove; 61. First robotic arm; 62. First connecting frame; 63. Second electric push rod; 64. Second connecting frame; 65. Mounting plate; 66. Fixing assembly; 67. Mounting hole; 660. First electromagnet; 661. Column; 662. First screw; 663. Second groove; 664. Ball seat; 665. Vacuum suction cup; 666. Second connecting rod; 667. Moving ring; 668. First connecting rod; 669. Second electromagnet; 6691. Moving through groove; 6692. First groove; 6693. Third connecting rod; 6694. Universal ball; 6695. Limiting cylinder; 6696. Fixed ring; 6697. Pressure sensor; 71. Second robotic arm; 72. Pressing assembly; 73. Positioning mechanism; 721. Cover body; 722. Arc-shaped plate; 723. Third electric push rod; 724. Plate body; 725. Fan plate; 726. Lifting rod; 727. First pressure ring; 728. Second through groove; 729. First through groove; 7291. Rotating rod; 7292. Second pressure ring; 731. First servo motor; 732. First gear; 733. Third screw; 734. Gear set; 735. Gear ring; 736. Second clamping assembly; 737. Limiting plate; 738. First clamping assembly; 7381. First clamping frame; 7382. Pulley; 7383. Second clamping frame; 7384. Threaded tube; 739. Second screw; 91. Rubber body; 92. Inner metal ring; 93. Outer metal ring. Detailed Implementation

[0022] 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.

[0023] Example 1, please refer to Figures 1-5 and Figure 17 The automotive swing arm bushing press fitting device includes a press fitting machine 1, a bushing 9, and a swing arm 5. The bushing 9 includes an inner metal ring 92, an outer metal ring 93, and a rubber body 91 disposed between the inner metal ring 92 and the outer metal ring 93. The rubber body 91 acts as a core buffer layer between the inner metal ring 92 and the outer metal ring 93 to absorb vibration and noise. The composition and structure of the bushing 9 are existing technologies and will not be described in detail here. It also includes: A chassis 2 is fixedly mounted inside the press-fitting machine 1. A turntable 3 is rotatably mounted on the top of the chassis 2. A first fixing mechanism 4 arranged in a circular array is mounted on the top of the turntable 3. A second fixing mechanism 6 and a press-fitting mechanism 7 are mounted on the top of the chassis 2 and outside the turntable 3. The first fixing mechanism 4 and the second fixing mechanism 6 cooperate to fix the swing arm 5. After the swing arm 5 is fixed, the bushing 9 is press-fitted into the swing arm 5 by the press-fitting mechanism 7. The first fixing mechanism 4 includes: The base 43 is fixedly mounted on the top of the turntable 3. Support plates 42 are fixedly mounted on both sides of the top of the base 43. A box 41 is fixedly mounted on the top of the support plate 42. The support plate 42 makes a gap between the bottom of the box 41 and the top of the base 43. One side of the box 41 is designed as an opening. A flexible bag 45 for storing magnetic fluid is provided on the inner wall of the box 41. An adjustment plate 44 is slidably disposed on the open side of the box 41 to adjust the size of the opening of the box 41. The adjustment plate 44 is L-shaped and extends to the bottom of the box 41.

[0024] In implementation of this invention, according to the shape and size of the swing arm 5, a specified number of fixing components 66 are installed on the bottom of the mounting plate 65, and the arrangement of the fixing components 66 is based on the shape of the swing arm 5. After the fixing components 66 are installed, the car swing arm 5 requiring the bushing 9 to be pressed is placed on top of the flexible bag 45 by an external robotic arm or manual operation, and the position where the bushing 9 needs to be installed on the swing arm 5 is placed outside the box 41 along the opening of the box 41. Then, the turntable 3 is rotated by the second servo motor 8, causing the box 41 containing the swing arm 5 to rotate to the position of the first robotic arm 61. Then, the first robotic arm... The first electric push rod 46 moves the mounting plate 65 and the fixing component 66 downwards, with the fixing component 66 positioned at the top of the swing arm 5. Since the number and arrangement of the fixing components 66 are determined by the size and shape of the swing arm 5, accurate contact can be achieved at multiple positions of the swing arm 5. After the vacuum suction cup 665 of the fixing component 66 adheres tightly to the surface of the swing arm 5, the fixing component 66 continues to move downwards, thereby squeezing the swing arm 5 to overcome the resistance of the flexible bag 45 and its internal magnetic fluid, and forcing the top of the flexible bag 45 to form an inner groove identical to that of the swing arm 5, so that the swing arm 5 is embedded inside the flexible bag 45. Subsequently, a stable magnetic field is provided to the magnetofluid by an energized electromagnet, causing the electromagnet to quickly harden within the flexible bag 45 and form a corresponding inner groove according to the embedded shape of the swing arm 5. This supports the bottom of the swing arm 5 while limiting its outer periphery, thus providing stable bottom and outer periphery limiting for the swing arm 5. At the same time, the second electric push rod 63 limits the swing arm 5 from the top, ensuring the stability of the swing arm 5. After the swing arm 5 is fixed, the inner metal ring 92 and outer metal ring 93 of the bushing 9 are fixed by the cooperation of the press assembly 72 and the positioning mechanism 73. Under the action of the robotic arm 71, the arm is moved to the top of the position where the bushing 9 is installed on the swing arm 5. Then, the inner metal ring 92 and the outer metal ring 93 are pushed downward by the third electric push rod 723, so that the bushing 9 is pressed into the swing arm 5. After the pressing is completed, the second robotic arm 71 is reset and awaits the next pressing command. The magnetic field of the magnetofluid is canceled and the magnetofluid resumes flow. The swing arm 5 with the bushing 9 is transferred to the designated position by the first robotic arm 61 and the vacuum suction cup 665, and awaits the next pressing command. When the swing arm 5 with the bushing 9 not pressed is transferred to the first robotic arm 61 with the turntable 3, it is convenient for the next pressing of the bushing 9.

[0025] Please see Figure 3 , Figure 6 and Figure 7 The press machine 1 is internally equipped with a second servo motor 8, the output shaft of which is fixedly connected to the center of the turntable 3, so that the second servo motor 8 can drive the turntable 3 to rotate. The first fixing mechanism 4 also includes: The first electric push rod 46 is fixedly installed at the bottom of the housing 41, and the adjusting plate 44 is located on one side of the bottom of the housing 41 and is fixedly connected to the telescopic shaft of the first electric push rod 46. The limiting groove 47 is opened on the top of one side of the adjusting plate 44 located at the bottom of the box 41, and is sleeved on the side wall of one of the support plates 42 so that the adjusting plate 44 can move along the side wall of the support plate 42.

[0026] In practical implementation, the swing arm 5, which needs to be pressed into the bushing 9, is placed on top of the flexible bag 45 containing magnetic fluid. With the cooperation of the second fixing mechanism 6, the swing arm 5 squeezes the flexible bag 45 and the magnetic fluid and moves downward, so that the swing arm 5 is embedded in the flexible bag 45. After the magnetic field is applied to the magnetic fluid, the magnetic fluid quickly hardens, thereby providing stable support and limiting for the bottom and outer periphery of the swing arm 5. By utilizing the fluidity and hardening characteristics of the magnetic fluid before and after applying the magnetic field, the bottom and outer periphery of the swing arm 5 are supported and limited. This allows the swing arm 5 to be supported and limited in accordance with its shape, avoiding the reduction in the limiting effect of the swing arm 5 due to its usually curved or irregular shape. This improves the stability of the subsequent pressing into the bushing 9. Furthermore, the rapid softening or hardening of the magnetic fluid before and after applying the magnetic field facilitates continuous pressing and improves pressing efficiency.

[0027] By cooperating with the second fixing mechanism 6, the bottom and outer periphery of the swing arm 5 are stably supported and limited, while the top of the swing arm 5 is pressed down, thereby preventing the swing arm 5 from tilting up during the pressing process and ensuring the stability of the swing arm 5 during the pressing process. Furthermore, through the cooperation of the fixing component 66 and the mounting hole 67, it is convenient to press down the swing arm 5 according to its size and shape, thereby improving its applicability.

[0028] The first electric push rod 46 drives the adjustment plate 44 to move, thereby adjusting the size of the opening of the box 41 to facilitate the placement of swing arms 5 of different sizes, and to prevent the flexible bag 45 from being exposed too much along the opening of the box 41 under the action of the magnetohydrodynamic fluid. This makes it easy to adjust according to the size of the swing arm 5 and facilitates actual use. By placing the position of the swing arm 5 where the bushing 9 is to be installed outside the box 41, it is easy to press the bushing 9 into the swing arm 5 later.

[0029] The support plate 42 creates a gap between the base 43 and the housing 41, which facilitates the first electric push rod 46 to move the adjusting plate 44, allowing the adjusting plate 44 to extend to the bottom of the housing 41 and slide in connection with the housing 41, thereby improving the stability of the moving adjusting plate 44.

[0030] The turntable 3 is driven to rotate by the second servo motor 8, which in turn drives the first fixing mechanism 4 to rotate, so that the first fixing mechanism 4, which is equipped with the swing arm 5, is rotated to the first mechanical arm 61 and cooperates with the second fixing mechanism 6. This facilitates the fixing of the swing arm 5 and subsequent press-fitting. In addition, it facilitates the continuous press-fitting of the bushing 9 into the swing arm 5, thereby improving the press-fitting efficiency.

[0031] When a magnetic field is applied to a magnetic fluid, the fluid hardens rapidly and quickly returns to its fluid state when the magnetic field is removed. This is a characteristic of magnetic fluids. The magnetic field can be applied to the magnetic fluid by energizing an electromagnet, and the hardness after hardening can be adjusted according to the magnitude of the current. The specific method of providing the magnetic field can be designed by those skilled in the art according to the actual situation, and is not limited here. This is existing technology and will not be elaborated here.

[0032] Please see Figures 8-13 The second fixing mechanism 6 includes: The first robotic arm 61 is fixedly mounted on the top of the chassis 2 and located on the outside of the turntable 3. The free end of the first robotic arm 61 is fixedly provided with a first connecting frame 62, and the top of the first connecting frame 62 is fixedly provided with a second electric push rod 63. The telescopic shaft of the second electric push rod 63 extends to the bottom of the first connecting frame 62. The second connecting bracket 64 is fixedly mounted on the bottom of the telescopic shaft of the second electric push rod 63. The inner side of the second connecting bracket 64 is fixedly mounted with a mounting plate 65. There is a gap between the top of the mounting plate 65 and the top of the inner side of the second connecting bracket 64. The top of the mounting plate 65 is provided with spaced mounting holes 67. The fixing component 66 is installed and removed from the bottom of the mounting plate 65 through the mounting holes 67.

[0033] The fixing component 66 includes: The first screw 662 is sleeved in the mounting hole 67 and fixed to the mounting plate 65 by a nut. A column 661 is fixed at the bottom of the first screw 662. A first groove 6692 is formed at the bottom of the column 661. A second groove 663 is formed on the inner wall of the top of the first groove 6692. The inner diameter of the second groove 663 is larger than the inner diameter of the first groove 6692. A first electromagnet 660 is fixedly disposed on the top inner wall of a second groove 663. A second electromagnet 669 is sleeved on the inner wall of the second groove 663. A first connecting rod 668 is fixedly disposed on the side of the second electromagnet 669 away from the first electromagnet 660. A first spring is sleeved on the side wall of the first connecting rod 668. A retaining ring 6696 is fixedly sleeved on the inner side wall of the second groove 663. A pressure sensor 6697 is fixedly mounted on the top of the retaining ring 6696 and contacts the bottom of the first spring. Both the pressure sensor 6697 and the retaining ring 6696 are sleeved on the side wall of the first connecting rod 668.

[0034] The fixing component 66 further includes: A movable ring 667 is fitted inside the second groove 663. A second connecting rod 666 is fixedly fitted on the inner wall of the movable ring 667. The second connecting rod 666 extends along the first groove 6692 to the bottom of the column 661. The top of the second connecting rod 666 is fixedly connected to the bottom of the first connecting rod 668. A second spring is fitted on the side wall of one end of the second connecting rod 666 located in the second groove 663. The second connecting rod 666 has a hollow design and an open bottom design. A ball seat 664 is fixedly mounted at one end of the second connecting rod 666 located at the bottom of the column 661. The top and bottom of the ball seat 664 are both open. A universal ball 6694 is fitted on the inner wall of the ball seat 664. A third connecting rod 6693 is fixedly mounted on the side wall of the universal ball 6694. The top and bottom of the third connecting rod 6693 extend into the second connecting rod 666 and the bottom of the ball seat 664, respectively. A vacuum suction cup 665 is fixedly mounted at one end of the third connecting rod 6693 located at the bottom of the ball seat 664.

[0035] The fixing component 66 further includes: The movable through groove 6691 is opened on the side wall of the second connecting rod 666 and arranged in a ring array. The inner wall of the movable through groove 6691 is fitted with a movable plate. The side of the movable plate that is far away from each other is fixedly connected to the inner wall of the first groove 6692. The side of the movable plate that is close to each other is fixedly provided with a limiting cylinder 6695. The inner diameter of the limiting cylinder 6695 gradually decreases from the side away from the ball seat 664 to the side close to the ball seat 664, and the limiting cylinder 6695 is made of elastic rubber material.

[0036] In specific implementation, after the box 41 with the swing arm 5 is transferred to the first robotic arm 61, the first robotic arm 61 transfers the fixing component 66 to the top of the swing arm 5. Then, the second electric push rod 63 drives the second connector, the mounting plate 65 and the fixing component 66 to move downward, so that the fixing component 66 squeezes the swing arm 5 to move downward, thereby making the swing arm 5 overcome the resistance of the flexible bag 45 and the magnetic fluid to move downward, so that the swing arm 5 is embedded in the flexible bag 45. Then, a magnetic field is provided to the magnetic fluid, thereby making the magnetic fluid hard, so as to fix it from the bottom, outer periphery and top of the swing arm 5, so as to facilitate the subsequent pressing mechanism 7 to press the bushing 9 into the swing arm 5.

[0037] When the second electric push rod 63 drives the fixing component 66 to press the swing arm 5 downward, the bottom of the vacuum suction cup 665 is in contact with the top of the swing arm 5. Under the action of the universal ball 6694 and the ball seat 664, the vacuum suction cup 665 can rotate at an angle so that the vacuum suction cup 665 can stick to the surface of the swing arm 5 (since the surface of the swing arm 5 usually has a certain curvature, so that the vacuum suction cup 665 can stick to the surface of the swing arm 5, thereby stabilizing the downward pressure on the swing arm 5). While the vacuum suction cup 665 can press down and press against the swing arm 5, after the magnetofluid recovers its flexibility, it can pick up and pull up the swing arm 5 equipped with the bushing 9, thereby transferring the swing arm 5 to the designated position under the action of the first robotic arm 61, so as to facilitate the next press-fitting use. Subsequently, the second electric push rod 63 drives the vacuum suction cup 665 to move downward continuously, thereby squeezing the swing arm 5 into the flexible bag 45. During this process, since the surface of the swing arm 5 has a certain curvature and is uneven, a repulsive force is generated on the side where the first electromagnet 660 and the second electromagnet 669 are close to each other, thereby driving the second electromagnet 669, the first connecting rod 668, the moving ring 667, the second connecting rod 666 and the vacuum suction cup 665 to move downward, so that the height of the vacuum suction cup 665 of each fixing component 66 can be adjusted independently, thereby facilitating the fixing of the swing arm 5 according to its shape and ensuring the stability of the fixing.

[0038] After the swing arm 5 with bushing 9 is moved to the designated position, in order to facilitate the vacuum suction cup 665 to press against and attract the next swing arm 5, the first electromagnet 660 and the second electromagnet 669 generate a repulsive force on the side that is close to each other, thereby driving the second connecting rod 666 and the ball seat 664 to move downward, so as to drive the universal ball 6694, the third connecting rod 6693 and the vacuum suction cup 665 to move downward. During this process, the end of the third connecting rod 6693 located inside the second connecting rod 666 is limited by the limiting cylinder 6695 as it moves downward. Since the inner diameter of the limiting cylinder 6695 increases from the side away from the ball seat 664 to the side closer to the ball seat 664... The angle of the third connecting rod 6693 gradually decreases, thereby gradually straightening the upper end of the third connecting rod 6693 so that it is arranged vertically or nearly vertically. This is to prevent the vacuum suction cup 665 from affecting the next use due to excessive angle deviation after completing one clamping and adsorption. Since the limiting cylinder 6695 is made of elastic rubber, when the vacuum suction cup 665 presses down on the swing arm 5 at the top of the flexible bag 45, the third connecting rod 6693 and the universal ball 6694 are affected by the shape of the swing arm 5 and are clamped by the swing arm 5. This allows the third connecting rod 6693 to overcome the elastic deflection of the limiting cylinder 6695, so as not to affect the vacuum suction cup 665's fit with the shape of the swing arm 5 for clamping and adsorption.

[0039] The installation of the limiting cylinder 6695 by moving the through slot 6691 and the moving plate does not affect the lifting and lowering of the second connecting rod 666, nor does it affect the installation of the limiting cylinder 6695.

[0040] The first and second springs provide elastic support for the second electromagnet 669 and the moving ring 667, facilitating the reset of the vacuum suction cup 665 after the repulsive force of the first electromagnet 660 and the second electromagnet 669 is released. A pressure sensor 6697 is installed via a fixing ring 6696 to monitor the pressure applied to the top of the swing arm 5, ensuring the swing arm 5 is embedded into the flexible bag 45 to a specified depth. In addition to the pressure sensor 6697, an external industrial vision camera can monitor the embedding depth of the swing arm 5 into the flexible bag 45. Furthermore, a swing arm 5 of a certain specification can be calibrated before pressing, detecting the value of the pressure sensor 6697 when embedded to a specified depth in the flexible bag 45, ensuring the stable embedding of the swing arm 5 into the flexible bag 45. Industrial vision cameras and calibration are common techniques in industrial processing and are existing technologies, which will not be elaborated upon here.

[0041] The mounting hole 67, the first screw 662, and the external nut facilitate the fixing of the fixing component 66 to the designated position on the bottom of the mounting plate 65. This allows for the installation of a specified number and position of fixing components 66 according to the size and shape of the swing arm 5, facilitating the actual use of fixing the swing arm 5. In conjunction with the first fixing mechanism 4, this improves the applicability of fixing the swing arm 5.

[0042] Example 2, please refer to Figures 14-22 The technical difference between this embodiment and Embodiment 1 is that the pressing mechanism 7 includes: The second robotic arm 71 is fixedly mounted on the top of the chassis 2 and located outside the turntable 3. A pressing assembly 72 is provided at the free end of the second robotic arm 71. The pressing assembly 72 includes: An arc-shaped plate 722 is fixedly mounted on the free end of the second robotic arm 71. A plate body 724 and a cover body 721 are fixedly mounted on the upper inner end and the lower inner end of the arc-shaped plate 722, respectively. The bottom of the cover body 721 is designed to be open. The top of the cover body 721 is provided with a positioning mechanism 73 for positioning the inner metal ring 92 and the outer metal ring 93. The third electric push rod 723 is fixedly installed on the top of the plate 724, and the telescopic shaft of the third electric push rod 723 extends to the bottom of the plate 724.

[0043] The press-fit assembly 72 further includes: The fan plate 725 is fixedly installed at the bottom of the telescopic shaft of the third electric push rod 723. The bottom of the fan plate 725 is fixedly provided with a ring array of lifting rods 726. The lifting rods 726 penetrate through the top of the cover 721 and extend into the cover 721 so that the lifting rods 726 can rise and fall along the top of the cover 721. The first pressure ring 727 is fixedly disposed at the bottom of the lifting rod 726 and sleeved on the inner side wall of the cover 721. The inner wall of the first pressure ring 727 is threadedly connected to the second pressure ring 7292. The top of the second pressure ring 7292 is fixedly provided with a rotating rod 7291 extending to the top of the cover 721. The top of the cover 721 is provided with a first through groove 729 that matches the rotation trajectory of the rotating rod 7291. The outer wall of the first pressure ring 727 is provided with a second through groove 728 arranged in a ring array.

[0044] The positioning mechanism 73 includes: A first servo motor 731 is fixedly mounted on the top of the cover 721. The output shaft of the first servo motor 731 is fixedly mounted with a second screw 739 via a coupling. The bottom of the second screw 739 extends into the cover 721. A first clamping assembly 738 is provided at intervals on the side wall of one end of the second screw 739 located inside the cover 721. A gear set 734 is driven on the side wall of the top end of the second screw 739 located in the cover 721. A gear ring 735 is rotatably mounted on the top of the cover 721. A first gear 732 arranged in a ring array is rotatably mounted on the top of the cover 721. A third screw 733 extending into the cover 721 is fixedly mounted on the inner wall of the first gear 732. A second clamping assembly 736 arranged at intervals is provided on the side wall of the third screw 733 located inside the cover 721. Both the second screw 739 and the third screw 733 are bidirectional screws, and the bidirectional threaded grooves on the side walls of the second screw 739 and the third screw 733 are arranged at intervals. The inner wall and outer wall of the gear ring 735 mesh with the gear set 734 and the first gear 732 respectively, so that the first servo motor 731 can synchronously drive the second screw 739 and the third screw 733 to rotate.

[0045] The first clamping assembly 738 includes: Two threaded tubes 7384 are threadedly connected to the side wall of the second screw 739, respectively threaded to the bidirectional threaded groove of the second screw 739. The outer walls of the two threaded tubes 7384 are respectively fixed with a first clamping frame 7381 and a second clamping frame 7383 arranged in a ring array. A hinge shaft is rotatably provided on the side of the first clamping frame 7381 and the second clamping frame 7383 that are close to each other. A pulley 7382 is rotatably provided at the middle end of the side wall of the hinge shaft. The positioning mechanism 73 further includes: The limiting plate 737 is fixedly installed on the top inner wall of the cover 721 and is arranged alternately with the first clamping frame 7381. The limiting plate 737 is arranged in a ring array and is slidably connected to the outer wall of the threaded tube 7384.

[0046] In specific implementation, the first servo motor 731 drives the second screw 739 and the third screw 733 to rotate synchronously, so that the first clamping assembly 738 and the second clamping assembly 736 clamp the inner metal ring 92 from the inner wall and the outer metal ring 93 from the outer wall, respectively. After clamping, the second robotic arm 71 transfers the bushing 9 to the top of the position where the bushing 9 is to be installed on the swing arm 5. Then, the third electric push rod 723 drives the fan plate 725 to move downward, thereby driving the lifting rod 726, the first pressure ring 727 and the second pressure ring 7292 to move downward, so that the inner metal ring 92 and the outer metal ring 93 of the bushing 9 are pressed into the swing arm 5 at the same time, reducing the probability of the bushing 9 tilting during the pressing process, thereby improving the stability of the bushing 9 pressing and avoiding affecting the effect of subsequent actual use.

[0047] By threading the first pressure ring 727 and the second pressure ring 7292 together, the height of the first pressure ring 727 can be easily adjusted according to the axial height of the inner metal ring 92 and the outer metal ring 93. This ensures that the bottoms of the first pressure ring 727 and the second pressure ring 7292 are aligned with the tops of the outer metal ring 93 and the inner metal ring 92, respectively, according to their original state (i.e., the inner metal ring 92 and the outer metal ring 93 of the bushing 9 are horizontal). By adjusting the height difference between the first pressure ring 727 and the second pressure ring 7292, it prevents the inner metal ring 92 and the outer metal ring 93 from being pressed down to only the one with the higher protrusion due to the height difference. This ensures that the inner metal ring 92 and the outer metal ring 93 can be pressed down simultaneously. The metal ring 93 is pressed down to ensure the stability of the pressing and reduce the probability of the inner metal ring 92 and the outer metal ring 93 tilting. It is connected by threads through the first pressure ring 727 and the second pressure ring 7292 so that the third electric push rod 723 can drive the first pressure ring 727 and the second pressure ring 7292 to rise and fall synchronously. This allows the actual pressing to be done without affecting the adjustment of the height difference between the bottom of the first pressure ring 727 and the second pressure ring 7292. When adjusting the height of the second pressure ring 7292, the rotating rod 7291 is rotated, which drives the second pressure ring 7292 to rotate along the first through groove 729, thereby adjusting the height of the second pressure ring 7292 and adjusting the height difference between the bottom of the first pressure ring 727 and the second pressure ring 7292.

[0048] Before pressing down the first pressure ring 727 and the second pressure ring 7292, the second screw 739 and the third screw 733 rotate, thereby limiting the first clamping assembly 738 and the second clamping assembly 736 from the inner wall of the inner metal ring 92 and the outer wall of the outer metal ring 93, respectively. At the same time, the design of the pulley 7382 facilitates the first pressure ring 727 and the second pressure ring 7292 to press down the inner metal ring 92 and the lower metal ring, thereby reducing the probability of the inner metal ring 92 and the outer metal ring 93 tilting during the pressing process, further improving the stability of the press-fitted bushing 9. The first clamping assembly 738 and the second clamping assembly 736 facilitate the clamping and fixing of the bushing 9, so as to transfer the bushing 9 to the position where the bushing 9 is installed on the swing arm 5.

[0049] When the first clamping assembly 738 actually clamps the inner metal ring 92 from its inner wall, the rotation of the second screw 739 causes the two threaded tubes 7384 to move closer together. This causes the ends of the first clamping frame 7381 and the second clamping frame 7383 away from the second screw 739 to move closer together and press against the inner wall of the inner metal ring 92. Multiple pulleys 7382 simultaneously limit the movement from the inner wall of the inner metal ring 92, thus clamping and limiting the inner metal ring 92. The second clamping assembly... The mechanical principle of 736 is the same as that of the first clamping assembly 738. That is, by rotating the third screw 733, the threaded tube 7384 of the second clamping assembly 736 is brought closer to each other, so that the ends of the first clamping frame 7381 and the second clamping frame 7383 of the second clamping assembly 736 away from the third screw 733 are brought closer to the outer wall of the outer metal ring 93. Thus, the pulley 7382 presses against the outer metal ring 93. When multiple second clamping assemblies 736 press against each other simultaneously, the outer metal ring 93 is clamped and limited.

[0050] Under the action of pulley 7382, the inner metal ring 92 can be clamped, while the first pressure ring 727 and the second pressure ring 7292 can press down the inner metal ring 92 and the outer metal ring 93.

[0051] When the inner metal ring 92 and the outer metal ring 93 are pressed down, the first clamping component 738 passes through the inner wall of the second pressure ring 7292, and the second clamping component 736 passes through the second through groove 728. This ensures that when the first pressure ring 727 and the second pressure ring 7292 press down on the outer metal ring 93 and the inner metal ring 92, the clamping and limiting of the outer metal ring 93 and the inner metal ring 92 are not affected, thus ensuring the stability of the pressing down.

[0052] The threaded tube 7384 of the first clamping assembly 738 is slidably connected to the limiting plate 737, thereby limiting the threaded tube 7384 and facilitating its movement. The threaded tube 7384 of the second clamping assembly 736 is slidably connected to the inner side wall of the cover 721 to limit the threaded tube 7384 of the second clamping assembly 736 and facilitate its movement. Each second clamping assembly 736 uses only one first clamping frame 7381 and one second clamping frame 7383, which are not arranged in the same ring array as the first clamping assembly 738, because the second clamping assembly 736 clamps it from the outer wall of the outer metal ring 93.

[0053] The gear set 734 consists of a second gear fixedly sleeved on the side wall of the second screw 739 and a third gear rotatably mounted on the top of the cover 721. There are two third gears, which mesh with the inner wall of the gear ring 735 and the second gear, so that the second screw 739 and the third screw 733 rotate synchronously under the transmission of the second gear, the third gear, the gear ring 735 and the first gear 732.

[0054] In this invention, the first servo motor 731 and the first electric push rod 46, and other electronic components, are connected to an external power supply and controller via wires, which facilitates actual control and use. This is prior art and will not be described in detail here.

[0055] Furthermore, any content not described in detail in this specification is existing technology known to those skilled in the art.

[0056] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0057] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A press-fit device for automotive swing arm bushings, comprising a press-fit machine, a bushing, and a swing arm, wherein the bushing includes an inner metal ring, an outer metal ring, and a rubber body disposed between the inner and outer metal rings, characterized in that, Also includes: A chassis is fixedly mounted inside the press-fitting machine. A turntable is rotatably mounted on the top of the chassis. A first fixing mechanism arranged in a circular array is mounted on the top of the turntable. A second fixing mechanism and a press-fitting mechanism are mounted on the top of the chassis, outside the turntable. The first and second fixing mechanisms cooperate to fix the swing arm. After the swing arm is fixed, the press-fitting mechanism presses the bushing into the swing arm. The first fixing mechanism includes: The base is fixed on the top of the turntable. Support plates are fixed on both sides of the top of the base. A box is fixed on the top of the support plates. The support plates make a gap between the bottom of the box and the top of the base. One side of the box is designed to be open. The inner wall of the box is provided with a flexible bag for storing magnetic fluid. An adjustment plate is slidably mounted on the open side of the cabinet to adjust the size of the opening. The adjustment plate has an L-shaped design and extends to the bottom of the cabinet.

2. The automotive swing arm bushing press-fitting device according to claim 1, characterized in that, The press-fitting machine is internally equipped with a second servo motor, the output shaft of which is fixedly connected to the center of the turntable, so that the second servo motor can drive the turntable to rotate. The first fixing mechanism further includes: The first electric push rod is fixedly installed at the bottom of the box, and the adjustment plate is located on one side of the bottom of the box and is fixedly connected to the telescopic shaft of the first electric push rod; A limiting groove is provided on the top of one side of the adjustment plate located at the bottom of the box, and is fitted onto the side wall of one of the support plates, so that the adjustment plate can move along the side wall of the support plate.

3. The automotive swing arm bushing press-fitting device according to claim 1, characterized in that, The second fixing mechanism includes: The first robotic arm is fixedly mounted on the top of the chassis and located outside the turntable. The free end of the first robotic arm is fixedly mounted with a first connecting frame. The top of the first connecting frame is fixedly mounted with a second electric push rod. The telescopic shaft of the second electric push rod extends to the bottom of the first connecting frame. The second connecting frame is fixedly installed at the bottom of the telescopic shaft of the second electric push rod. A mounting plate is fixedly installed on the inner side of the second connecting frame. There is a gap between the top of the mounting plate and the top of the inner side of the second connecting frame. The top of the mounting plate is provided with spaced mounting holes. Fixing components are installed and removed from the bottom of the mounting plate through the mounting holes.

4. The automotive swing arm bushing press-fitting device according to claim 3, characterized in that, The fixing component includes: The first screw is fitted into the mounting hole and fixed to the mounting plate by a nut. A column is fixed at the bottom of the first screw. A first groove is formed at the bottom of the column. A second groove is formed on the inner wall of the top of the first groove. The inner diameter of the second groove is larger than that of the first groove. A first electromagnet is fixedly disposed on the top inner wall of the second groove. The second electromagnet is sleeved on the inner wall of the second groove. A first connecting rod is fixedly disposed on the side of the second electromagnet away from the first electromagnet. A first spring is sleeved on the side wall of the first connecting rod. A retaining ring is fixedly sleeved on the inner side wall of the second groove. A pressure sensor is fixedly mounted on the top of the retaining ring and contacts the bottom of the first spring. Both the pressure sensor and the retaining ring are sleeved on the side wall of the first connecting rod.

5. The automotive swing arm bushing press-fitting device according to claim 4, characterized in that, The fixing component also includes: A movable ring is fitted into the second groove. A second connecting rod is fixedly fitted on the inner wall of the movable ring. The second connecting rod extends along the first groove to the bottom of the column. The top of the second connecting rod is fixedly connected to the bottom of the first connecting rod. A second spring is fitted on the side wall of the end of the second connecting rod located in the second groove. The second connecting rod is hollow and has an open bottom. The ball seat is fixedly installed at one end of the second connecting rod located at the bottom of the column. The top and bottom of the ball seat are both designed to be open. A universal ball is fitted on the inner wall of the ball seat. A third connecting rod is fixedly installed on the side wall of the universal ball. The top and bottom of the third connecting rod extend into the second connecting rod and the bottom of the ball seat, respectively. A vacuum suction cup is fixedly installed at one end of the third connecting rod located at the bottom of the ball seat.

6. The automotive swing arm bushing press-fitting device according to claim 5, characterized in that, The fixing component also includes: The movable channel is opened on the side wall of the second connecting rod and arranged in a ring array. The inner wall of the movable channel is fitted with a movable plate. The side of the movable plate that is far away from each other is fixedly connected to the inner wall of the first groove. The side of the movable plate that is close to each other is fixedly fitted with a limiting cylinder. The inner diameter of the limiting cylinder gradually decreases from the side away from the ball seat to the side close to the ball seat, and the limiting cylinder is made of elastic rubber material.

7. The automotive swing arm bushing press-fitting device according to claim 1, characterized in that, The pressing mechanism includes: The second robotic arm is fixedly mounted on the top of the chassis and located outside the turntable. The free end of the second robotic arm is equipped with a pressing assembly, which includes: An arc-shaped plate is fixedly mounted on the free end of the second robotic arm. The upper inner end and the lower inner end of the arc-shaped plate are respectively fixed with a plate body and a cover body. The bottom of the cover body is designed to be open, and the top of the cover body is provided with a positioning mechanism for positioning the inner metal ring and the outer metal ring. The third electric actuator is fixedly installed at the top of the plate, and its telescopic shaft extends to the bottom of the plate.

8. The automotive swing arm bushing press-fitting device according to claim 7, characterized in that, The press-fit assembly also includes: The fan plate is fixed at the bottom of the telescopic shaft of the third electric push rod. The bottom of the fan plate is fixed with a ring array of lifting rods. The lifting rods pass through the top of the cover and extend into the cover, so that the lifting rods can rise and fall along the top of the cover. The first pressure ring is fixedly installed at the bottom of the lifting rod and sleeved on the inner side wall of the cover. The inner wall of the first pressure ring is threaded with a second pressure ring. The top of the second pressure ring is fixedly provided with a rotating rod extending to the top of the cover. The top of the cover is provided with a first through groove that matches the rotation trajectory of the rotating rod. The outer wall of the first pressure ring is provided with a second through groove arranged in a ring array.

9. The automotive swing arm bushing press-fitting device according to claim 8, characterized in that, The positioning mechanism includes: The first servo motor is fixedly mounted on the top of the cover. The output shaft of the first servo motor is fixedly mounted on the second screw through a coupling. The bottom of the second screw extends into the cover. The side wall of the second screw located inside the cover is provided with spaced first clamping components. The side wall of the second screw located at the top of the cover is provided with a gear set for transmission. A gear ring is rotatably mounted on the top of the cover. The top of the cover is rotatably equipped with a first gear arranged in a ring array. The inner wall of the first gear is fixed with a third screw extending into the cover. The side wall of the third screw located inside the cover is provided with a second clamping assembly arranged at intervals. Both the second and third screws are bidirectional screws, and the bidirectional threaded grooves on the side walls of the second and third screws are arranged at intervals. The inner and outer walls of the gear ring mesh with the gear set and the first gear, respectively, so that the first servo motor can synchronously drive the second and third screws to rotate.

10. The automotive swing arm bushing press-fitting device according to claim 9, characterized in that, The first clamping component includes: Two threaded tubes are threaded to the side wall of the second screw, respectively, to be threaded to the bidirectional threaded groove of the second screw. The outer walls of the two threaded tubes are respectively fixed with a first clamping frame and a second clamping frame arranged in a ring array. A hinge shaft is rotatably provided on the side of the first and second clamping frames that are close to each other. A pulley is rotatably provided at the middle end of the side wall of the hinge shaft. The positioning mechanism further includes: The limiting plate is fixedly installed on the top inner wall of the cover and is arranged alternately with the first clamping frame. The limiting plate is arranged in a ring array and is slidably connected to the outer wall of the threaded tube.

Images