Automobile rear steering knuckle press-fitting device

Abstract

The invention relates to the technical field of steering knuckle press-fitting, in particular to an automobile rear steering knuckle press-fitting device which comprises a support, the support comprises two supporting columns, a plurality of carrying plates are evenly and rotationally connected between the tops of the two supporting columns, and press-fitting assemblies and ejection assemblies are arranged on the outer sides of the carrying plates. The press-fitting assembly can press a bearing into the steering knuckle, the ejection assembly can eject the bearing out of the interior of the steering knuckle, the press-fitting assembly comprises a supporting plate, a first oil cylinder is fixed to the inner side of the supporting plate, and the ejection assembly comprises a bent plate. According to the steering knuckle press-fitting device, the steering knuckles can be automatically clamped, fixed and rotated to the press-fitting station for press-fitting operation through the carrying plates, the press-fitted steering knuckles can be transferred to the position above an external conveying belt, the press-fitted steering knuckles can be automatically released by means of the gravity of the steering knuckles, and feeding and press-fitting operation can be circularly completed at the same time through rotation of the multiple carrying plates; and the overall efficiency of clamping, pressing and releasing the steering knuckle can be improved.

Description

Technical Field

[0001] This invention relates to the field of steering knuckle press-fit technology, specifically a rear steering knuckle press-fit device for automobiles. Background Technology

[0002] The rear steering knuckle of a car is a connecting component between the wheel and the suspension system. It is connected to the wheel through a bearing and to the suspension system through a connecting arm. In order to install the bearing into the wheel hub hole of the steering knuckle, a press-fitting device is usually used to press the bearing into the wheel hub hole. During press-fitting, the steering knuckle is first fixed on the processing table with a fixture, then the bearing is placed on the wheel hub hole, and finally the hydraulic cylinder on the press-fitting device presses the bearing into the wheel hub hole.

[0003] To connect with suspension system components such as the control arm and shock absorber, the steering knuckle has multiple connecting arms with different functions, such as the steering arm and lower ball joint, fixed on its outer side. The multiple connecting arms make the steering knuckle an irregularly shaped part. Most press-fitting devices cannot easily design clamps that take into account the irregular shape of the steering knuckle, so that the clamps can automatically fix the steering knuckle and automatically release the press-fitted steering knuckle. Furthermore, traditional press-fitting devices only have the function of pressing the bearing into the steering knuckle. They cannot detect whether the bearing meets the press-fitting process requirements during the press-fitting process, nor can they remove the bearing that does not meet the requirements from the steering knuckle. Summary of the Invention

[0004] The purpose of this invention is to provide a pressing device for a rear steering knuckle of an automobile to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution:

[0006] A pressing device for a rear steering knuckle of an automobile, comprising:

[0007] The bracket includes two support columns, and a plurality of carrier plates for supporting and fixing the steering knuckle are rotatably connected between the two support columns.

[0008] A press-fitting assembly, arranged on one side of a carrier plate, is capable of press-fitting a bearing into the steering knuckle. The press-fitting assembly includes a support plate, and a hydraulic cylinder is fixed inside the support plate.

[0009] An ejection assembly, arranged on the other side of the carrier plate, is capable of ejecting the bearing from the steering knuckle. The ejection assembly includes a bending plate, and a hydraulic cylinder is fixed to the top of the bending plate.

[0010] The slide is located below the press-fitting assembly and the ejection assembly, and can drive the press-fitting assembly and the ejection assembly to move to the outer side of the carrier plate to press-fit the bearing.

[0011] The inspection and cleaning component is installed and fixed with the bending plate. The inspection and cleaning component can not only clean the hub shaft hole of the steering knuckle, but also detect whether the bearing can rotate normally after pressing. The inspection and cleaning component includes a support cylinder, and multiple arc-shaped plates are arranged on the outer side of the support cylinder.

[0012] Furthermore, a rotating shaft that is rotatably connected between the two support columns and fixed to multiple carrier plates is provided, and a reduction motor that can drive the rotating shaft to rotate is fixed to the outside of one of the support columns.

[0013] Furthermore, the carrier plate has a circular hole in the middle, a rectangular hole and two notches on the outer side, and two positioning posts are fixed on the outer side of the carrier plate.

[0014] Furthermore, the output ends of both the first and second hydraulic cylinders are fixed with circular plates, a connecting plate is fixed to one side of the support plate, and a positioning ring is fixed to one end of the support plate.

[0015] Furthermore, the slide includes an L-shaped column fixed to the support column, a support plate fixed to the top of the L-shaped column, a guide rail fixed to the top of the support plate, a lead screw rotatably connected inside the guide rail, a crossbeam screwed to the outside of the lead screw, and both the bending plate and the connecting plate fixedly connected to the crossbeam.

[0016] Furthermore, the crossbeam is slidably connected to the guide rail, and a motor capable of driving the lead screw to rotate is fixed on the outer side of the guide rail.

[0017] Furthermore, the detection and cleaning assembly also includes a second lead screw that is rotatably connected to the bending plate. A transmission seat is screwed onto the outer side of the second lead screw. The transmission seat is rotatably connected to the support cylinder. Multiple telescopic tubes are fixedly connected to the outer side of the support cylinder. The arc-shaped plate is fixedly connected to the corresponding telescopic tube.

[0018] Furthermore, an extension plate is fixed to the top of the transmission seat, and an air pump capable of supplying or drawing air to the support cylinder is fixed to the top of the extension plate.

[0019] Furthermore, a second motor capable of driving the support cylinder to rotate is fixed to the top of the transmission base, and an overload protector is installed in the power circuit of the second motor.

[0020] Furthermore, the detection and cleaning component also includes:

[0021] The guide plate is fixedly connected to the bending plate, and the transmission seat is slidably connected to the guide plate.

[0022] Motor 3 is fixedly connected to the bending plate, and the output end of motor 3 is fixedly connected to lead screw 2.

[0023] Compared with the prior art, the beneficial effects of the present invention are:

[0024] 1. By opening a rectangular hole and two notches on the outer side of the carrier plate, and fixing two positioning posts on the outer side of the carrier plate, the lower spherical joint on the steering knuckle can be inserted into the rectangular hole. The steering arm and shock absorber arm on the steering knuckle can be respectively engaged with the corresponding notches. The mounting holes on the two mounting arms on the outer side of the steering knuckle can be fitted onto the positioning posts. Thus, the structure of the carrier plate is designed in combination with the irregular shape of the steering knuckle. When the steering knuckle is on the top surface of the horizontal carrier plate or on one side of the vertical carrier plate, the steering knuckle will not detach from the carrier plate, realizing automatic clamping and fixing of the steering knuckle for press-fitting. When the steering knuckle is on the bottom surface of the horizontal carrier plate, the steering knuckle will fall off the carrier plate under its own gravity, realizing automatic release of the press-fitted steering knuckle. This eliminates the need for traditional complex clamping designs and helps to improve the overall efficiency of steering knuckle clamping and release.

[0025] 2. The slide table drives the pressing assembly and ejection assembly to move to both sides of the carrier plate, placing the bearing onto the support plate of the pressing assembly. The output end of cylinder one drives the circular plate to push the bearing towards the steering knuckle. The positioning plate on the ejection assembly abuts against one side of the carrier plate, allowing the bearing to be pressed into the wheel hub shaft hole of the steering knuckle. When the bearing pressed into the steering knuckle is damaged or defective, the output end of cylinder two can push the bearing in the opposite direction through the circular plate. At this time, one end of the support plate on the pressing assembly abuts against the position of the steering knuckle on the carrier plate. As the output end of cylinder two enters the wheel hub shaft hole of the steering knuckle, the bearing is ejected from the inside of the steering knuckle. Thus, the pressing device can not only press bearings into the steering knuckle, but also eject defective bearings from the inside of the steering knuckle for re-pressing, which helps to improve the efficiency of replacing and pressing damaged bearings.

[0026] 3. Multiple carrier plates are arranged in a ring at equal angles on the support. When the steering knuckle on the top carrier plate is in the pressing position and undergoing pressing operations, the steering knuckle on the left carrier plate is in the inspection and cleaning component position and the wheel hub shaft hole is cleaned to prevent debris inside the wheel hub shaft hole from affecting the subsequent pressing of the bearing. The bottom carrier plate can be used by the user to install the steering knuckle to be pressed. After the bearing is pressed, the steering knuckle on the bottom of the right carrier plate rotates to face the ground and can automatically detach from the carrier plate under its own gravity and fall onto the external conveyor belt for transportation. This realizes the combined implementation of steering knuckle loading, cleaning, bearing pressing and unloading, which helps multiple steering knuckles to be pressed in a cycle and improves the efficiency of steering knuckle pressing operations. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0028] Figure 2 This is a schematic diagram of the bearing structure for press-fitting the steering knuckle according to the present invention;

[0029] Figure 3 This is a schematic diagram of the sliding table driving the pressing assembly to move in this invention;

[0030] Figure 4 This is a schematic diagram of the support structure in this invention;

[0031] Figure 5 This is a schematic diagram of the slide, press-fitting component, and ejection assembly in this invention;

[0032] Figure 6 This is a schematic diagram of the detection and cleaning component structure in this invention. Figure 1 ;

[0033] Figure 7 This is a schematic diagram of the detection and cleaning component structure in this invention. Figure 2 ;

[0034] Figure 8 This is a schematic diagram of the slide structure in this invention.

[0035] In the diagram: 100, bracket; 110, support column; 120, carrier plate; 121, round hole one; 122, rectangular hole; 123, notch; 124, positioning column; 130, geared motor; 200, press-fit assembly; 210, pallet; 211, positioning ring; 220, hydraulic cylinder one; 230, connecting plate; 300, ejection assembly; 310, bending plate; 311, round hole two; 320, hydraulic cylinder two; 330, positioning plate; 400, slide table; 410, L-shaped column; 420, support plate; 430, guide rail one; 440, lead screw one; 450, crossbeam; 460, motor one; 470, guide rail two; 500, detection and cleaning assembly; 510, lead screw two; 520, transmission seat; 530, support cylinder; 540, telescopic tube; 550, arc plate; 551, brush body; 560, extension plate; 561, air pump; 570, motor two; 580, guide plate; 590, motor three. Detailed Implementation

[0036] 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.

[0037] Example 1, please refer to Figure 1 - Figure 8In this embodiment of the invention, a rear steering knuckle press-fitting device for automobiles includes a bracket 100. The bracket 100 includes two support columns 110. A plurality of carrier plates 120 are rotatably connected between the tops of the two support columns 110. A press-fitting assembly 200 and an ejection assembly 300 are arranged on the outer side of the carrier plates 120. The press-fitting assembly 200 can press the bearing into the steering knuckle, and the ejection assembly 300 can eject the bearing from the steering knuckle. The press-fitting assembly 200 includes a support plate 210. A hydraulic cylinder 220 is fixed inside the plate 210. The ejection assembly 300 includes a bending plate 310. A hydraulic cylinder 320 is fixed on the top of the bending plate 310. The output ends of both the hydraulic cylinder 220 and the hydraulic cylinder 320 are used to push the bearing. A slide 400 is provided below the pressing assembly 200 and the ejection assembly 300. The slide 400 can drive the pressing assembly 200 and the ejection assembly 300 to move to the outside of the carrier plate 120 to press the bearing or to eject the damaged bearing from inside the steering knuckle.

[0038] Specifically, by pre-setting rectangular holes 122, notches 123, and positioning posts 124 on the carrier plate 120 according to the irregular structural characteristics of the rear steering knuckle, the lower spherical joint on the steering knuckle can be inserted into the rectangular hole 122, and different connecting arms on the steering knuckle can be snapped onto different notches 123 and positioning posts 124. This enables the carrier plate 120 to automatically clamp and fix the steering knuckle and rotate it to the pressing station for pressing operations. It can also transfer the pressed steering knuckle to the external conveyor belt and automatically release it by its own weight. This eliminates the need for the traditional use of complex clamps to clamp and install the steering knuckle. Furthermore, the rotation of multiple carrier plates 120 can simultaneously complete the feeding and pressing operations, which helps to improve the overall efficiency of steering knuckle clamping, pressing, and release.

[0039] like Figure 3 and Figure 4 As shown, in this embodiment, a right rotating shaft is rotatably connected between two support columns 110, and the rotating shaft is fixedly connected to multiple carrier plates 120. A reduction motor 130 capable of driving the rotating shaft to rotate is fixedly connected to the top of one support column 110.

[0040] In this embodiment, the output of the geared motor 130 drives the rotating shaft to rotate, and the rotating shaft drives multiple carrier plates 120 with steering knuckles to rotate. Specifically, the rotation angle can be 90 degrees each time, so that the carrier plates 120 with steering knuckles are transferred sequentially to the left end inspection station, the upper pressing station and the right end unloading station. Of course, the rotating shaft can also drive the carrier plates 120 to rotate in the opposite direction, so that the carrier plates 120 with the pressed steering knuckles are transferred to the inspection station for inspection, and then transferred from the inspection station to the unloading station to release the inspected steering knuckles.

[0041] like Figure 4As shown, in this embodiment, a rectangular hole 122 and two notches 123 are provided through the outer side of the carrier plate 120. Two positioning posts 124 are fixed on the outer side of the carrier plate 120. When the steering knuckle is placed from below the bracket 100, the lower spherical part of the steering knuckle is inserted into the rectangular hole 122, so that the steering arm and the shock absorber arm are respectively engaged with the corresponding notches 123. The mounting arm on the outer side of the steering knuckle is sleeved on the positioning post 124, so that the steering knuckle can be engaged and placed on the carrier plate 120. Only when the steering knuckle rotates to the bottom surface of the carrier plate 120 will it fall automatically under its own weight.

[0042] like Figure 1 , Figure 4 and Figure 5 As shown, in this embodiment, a circular hole 121 is provided through the middle of the carrier plate 120. When the steering knuckle on the carrier plate 120 is located between the press assembly 200 and the ejection assembly 300, the output end of the hydraulic cylinder 320 on the ejection assembly 300 can carry the circular plate through the circular hole 121 into the hub shaft hole of the steering knuckle, which helps to push the bearing inside the steering knuckle out using the ejection assembly 300.

[0043] like Figure 5 As shown, in this embodiment, the output ends of both the first hydraulic cylinder 220 and the second hydraulic cylinder 320 are fixed with circular plates. The diameter of the circular plates is such that they can enter the wheel hub shaft hole with the help of the thrust of the hydraulic cylinder. One end of the support plate 210 is fixed with a positioning ring 211, and one end of the bent plate 310 is fixedly connected with a positioning plate 330.

[0044] In this embodiment, refer to Figure 2 During the press-fitting of the bearing, the positioning plate 330 is placed against one side of the carrier plate 120, and the positioning ring 211 is placed against the steering knuckle. The bearing can be placed on the arc-shaped support plate 210, and one end of the bearing is inserted into the positioning ring 211. The positioning ring 211 can make the bearing and the wheel hub shaft hole collinear. The output end of the hydraulic cylinder 220, with a circular plate, pushes the bearing toward the steering knuckle, thereby press-fitting the bearing into the steering knuckle. The shape of the positioning plate 330 can adapt to the irregular shape of the steering knuckle and support it on one side of the carrier plate 120, improving the stability of the steering knuckle during bearing press-fitting.

[0045] In this embodiment, if it is necessary to remove the bearing inside the steering knuckle, the steering knuckle is positioned between the positioning ring 211 and the positioning plate 330. At this time, the output end of the second hydraulic cylinder 320 pushes the bearing inside the steering knuckle from the other end of the steering knuckle and moves it onto the support plate 210.

[0046] like Figure 5 and Figure 8As shown, in this embodiment, the slide table 400 includes an L-shaped column 410 fixedly connected to the support column 110. A support plate 420 is fixed to the top of the L-shaped column 410. A guide rail 430 is fixed to the top of the support plate 420. A lead screw 440 is rotatably connected inside the guide rail 430. A crossbeam 450 that is slidably connected to the guide rail 430 is screwed to the outside of the lead screw 440. A connecting plate 230 is fixed to one side of the support plate 210. Both the bending plate 310 and the connecting plate 230 are fixedly connected to the crossbeam 450. A motor 460 that can drive the lead screw 440 to rotate is fixed to the outside of the guide rail 430.

[0047] In this embodiment, the slide table 400 drives the pressing assembly 200 and the ejection assembly 300 to move to the outside of the steering knuckle to perform pressing bearing operation or ejection bearing operation on the steering knuckle. The slide table 400 drives the pressing assembly 200 and the ejection assembly 300 away from the steering knuckle, so that the carrier plate 120 can rotate with the steering knuckle to switch positions, so that the steering knuckles on the carrier plate 120 at different positions can be transferred to the position above the bracket 100. Then the slide table 400 can move the pressing assembly 200 and the ejection assembly 300 to the outside of the steering knuckle again to perform operation on the steering knuckle.

[0048] In this embodiment, when the slide table 400 is working, the motor 460 drives the lead screw 440 to rotate, and the crossbeam 450, which is screwed to the lead screw 440, slides along the guide rail 430 toward the carrier plate 120. This causes the crossbeam 450 to move along with the connecting plate 230 and the bending plate 310 toward the carrier plate 120 at the same time. Ultimately, this moves the pressing assembly 200 on the connecting plate 230 and the ejection assembly 300 on the bending plate 310 to both sides of the carrier plate 120, making it convenient for the pressing assembly 200 and the ejection assembly 300 to process the steering knuckles respectively. Similarly, if the motor 460 drives the lead screw 440 to rotate in the opposite direction, the slide table 400 can drive the pressing assembly 200 and the ejection assembly 300 to leave the processed steering knuckle.

[0049] In this embodiment, refer to Figure 5 Guide rails 470 are fixedly connected to both sides of the top surface of the support plate 420, and both ends of the crossbeam 450 are slidably engaged with the guide rails 470, thereby allowing the crossbeam 450 to move stably back and forth on the support plate 420. (Refer to...) Figure 8 The corner of the L-shaped column 410 is fixedly connected with a reinforcing rib, which helps to improve the stability of the L-shaped column 410 support.

[0050] Example 2, based on Example 1, in order to clean the debris inside the steering knuckle hub shaft hole and prevent the debris from affecting the accuracy of the bearing being pressed into the hub shaft hole, and to detect whether the bearing pressed into the steering knuckle can rotate flexibly and whether there is any abnormal noise during rotation, so as to prevent damaged bearings from being pressed into the steering knuckle on the production line.

[0051] like Figure 1 , Figure 2 , Figure 6 and Figure 7 As shown, in this embodiment, a detection and cleaning component 500 is provided at one end of the bending plate 310. The detection and cleaning component 500 includes a lead screw 510 rotatably connected to the bending plate 310. A transmission seat 520 is screwed onto the outer side of the lead screw 510. A support cylinder 530 is rotatably connected to one end of the transmission seat 520. Multiple telescopic tubes 540 are fixedly connected to the outer side of the support cylinder 530 in an annular shape at equal angles. An arc-shaped plate 550 is fixedly connected between two adjacent telescopic tubes 540. Two brush bodies 551 are embedded and fixedly fixed to the outer side of the arc-shaped plate 550. An extension plate 560 is fixedly connected to the top of the transmission seat 520. An air pump 561 capable of supplying or drawing air to the support cylinder 530 is fixedly connected to the top of the extension plate 560. A motor 570 capable of driving the support cylinder 530 to rotate is fixedly connected to the top of the transmission seat 520. An overload protector is installed in the power circuit of the motor 570.

[0052] In this embodiment, refer to Figure 2 After the slide table 400 drives the bending plate 310 to move to the outside of the carrier plate 120, the inspection and cleaning assembly 500 is arranged above the steering knuckle of the inspection station. This allows the lead screw 2 510 to rotate, driving the transmission seat 520 to move down with the support cylinder 530. Multiple arc-shaped plates 550 on the outside of the support cylinder 530, along with the brush body 551, move down to the inside of the steering knuckle hub shaft hole. The air pump 561 supplies air to the opening of the support cylinder 530, increasing the air pressure inside the support cylinder 530. This causes multiple telescopic tubes 540 to extend, thereby allowing the arc-shaped plates 550 and the brush body 551 to move down. 51 abuts against the inner side of the wheel hub shaft hole, and then the second motor 570 drives the first gear at its output end to rotate. The first gear drives the second gear to rotate, and the second gear is sleeved and fixed on the top of the support cylinder 530, so that the support cylinder 530 carries multiple brush bodies 551 to rotate inside the wheel hub shaft hole, which helps to automatically clean the steering knuckle shaft hole position of the bearing to be pressed. While cleaning, the second lead screw 510 can move up and down with the transmission seat 520, so that the support cylinder 530 carries multiple brush bodies 551 to rotate inside the shaft hole and move up and down at the same time, improving the cleaning effect.

[0053] like Figure 6 and Figure 7 As shown, in this embodiment, the detection and cleaning component 500 also includes a guide plate 580 fixedly connected to the bending plate 310, a transmission seat 520 slidably connected to the guide plate 580, and a motor 590 fixedly connected to the bottom of the bending plate 310. The output end of the motor 590 is fixedly connected to the lead screw 510, so that the output end of the motor 590 can rotate the lead screw 510 in both directions, which can cause the transmission seat 520 to move up and down along the guide plate 580.

[0054] like Figure 6 As shown, in this embodiment, mounting plates are fixed on both sides of the transmission base 520. The two mounting plates are fixedly connected to the second motor 570, thereby allowing the second motor 570 to be mounted on the top of the transmission base 520. One side of the two mounting plates is fixedly connected to the extension plate 560, thereby fixing the extension plate 560 to the top of the transmission base 520.

[0055] like Figure 7 As shown, in this embodiment, the bending plate 310 has a second circular hole 311 for multiple arc plates 550 to pass through. The telescopic tube 540 includes a first tube that is fixedly connected to the support cylinder 530. The second tube is slidably connected inside the first tube. The second tube is fixedly connected to the arc plate 550. The exhaust pipe of the air pump 561 is rotatably connected to the opening of the support cylinder 530, so that the air pump 561 can supply air to or extract air from the support cylinder 530 without interfering with the rotation of the support cylinder 530 itself.

[0056] In conjunction with the above embodiments, when it is necessary to detect whether the internal bearing of the steering knuckle is damaged after the press-fitting operation, the support cylinder 530, carrying multiple arc-shaped plates 550, can be moved into the shaft hole of the steering knuckle. The air pump 561 supplies air to the support cylinder 530 to extend the telescopic tube 540, so that the arc-shaped plates 550 are tightly abutted against the inner side of the bearing. Then, the output end of the second motor 570 drives the support cylinder 530 to rotate. The support cylinder 530 carries the bearing to rotate through the multiple arc-shaped plates 550. When the bearing itself is damaged or damaged due to press-fitting and cannot rotate, or when the rotation resistance is large, the output end of the second motor 570 will continuously increase the power to drive the support cylinder 530 to rotate. After the load of the output end of the second motor 570 reaches the preset standard value, the overload protector in the circuit will automatically cut off the power to stop the second motor 570 from working. At this time, the second motor 570 cannot drive the support cylinder 530 to rotate the bearing. Therefore, whether the bearing is damaged can be indirectly assessed based on whether the second motor 570 can rotate the bearing.

[0057] In addition, if the support cylinder 530 can rotate with the bearing, the user can listen to whether the bearing makes any abnormal noise when it rotates to determine whether the bearing is damaged. After the bearing rotates at high speed, the air pump 561 can be used to draw air from the inside of the support cylinder 530 to shorten the length of the telescopic tube 540, so that the arc plate 550 leaves the bearing. Observing whether the bearing can rotate for a period of time under natural rotation helps to further evaluate whether the bearing meets the usage requirements.

[0058] like Figure 7 As shown, in this embodiment, a rubber sleeve is fixed on the outer side of the arc plate 550 between the two brush bodies 551. During the process of the arc plate 550 tightly abutting against the bearing, the rubber sleeve can increase the tightness of the contact between the arc plate 550 and the bearing.

[0059] In this invention, the air pump 561, motor, overload protector and other components are all existing technology components, and the working principle of the components themselves will not be described in detail.

[0060] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the present invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0061] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A pressing device for a rear steering knuckle of an automobile, characterized in that, include: The bracket (100) includes two support columns (110), and a plurality of carrier plates (120) for supporting and fixing the steering knuckle are rotatably connected between the two support columns (110). The press assembly (200) is arranged on one side of the carrier plate (120) and can press the bearing into the steering knuckle. The press assembly (200) includes a support plate (210) and a hydraulic cylinder (220) is fixed inside the support plate (210). Ejection assembly (300) is arranged on the other side of carrier plate (120) and is capable of ejecting bearing from steering knuckle. Ejection assembly (300) includes bending plate (310) and hydraulic cylinder two (320) is fixed on top of bending plate (310). A slide (400) is arranged below the press assembly (200) and the ejection assembly (300) and is capable of driving the press assembly (200) and the ejection assembly (300) to move to the press bearing outside the carrier plate (120); The inspection and cleaning component (500) is installed and fixed with the bending plate (310). The inspection and cleaning component (500) can not only clean the hub shaft hole of the steering knuckle, but also detect whether the bearing after pressing can rotate normally. The inspection and cleaning component (500) includes a support cylinder (530), and multiple arc plates (550) are arranged on the outside of the support cylinder (530).

2. The automotive rear steering knuckle press-fitting device according to claim 1, characterized in that, The two support columns (110) are rotatably connected to a rotating shaft fixed to multiple carrier plates (120), and a geared motor (130) capable of driving the rotating shaft to rotate is fixed to the outside of one support column (110).

3. The automotive rear steering knuckle press-fitting device according to claim 1, characterized in that, A circular hole (121) is provided in the middle of the carrier plate (120), a rectangular hole (122) and two notches (123) are provided on the outer side of the carrier plate (120), and two positioning posts (124) are fixed on the outer side of the carrier plate (120).

4. The automotive rear steering knuckle press-fitting device according to claim 1, characterized in that, Both the output ends of cylinder 1 (220) and cylinder 2 (320) are fixed with circular plates, a connecting plate (230) is fixed on one side of the support plate (210), and a positioning ring (211) is fixed on one end of the support plate (210).

5. The automotive rear steering knuckle press-fitting device according to claim 4, characterized in that, The slide (400) includes an L-shaped column (410) fixed to the support column (110), a support plate (420) fixed to the top of the L-shaped column (410), a guide rail (430) fixed to the top of the support plate (420), a lead screw (440) rotatably connected inside the guide rail (430), and a crossbeam (450) screwed to the outside of the lead screw (440). The bending plate (310) and the connecting plate (230) are both fixedly connected to the crossbeam (450).

6. The automotive rear steering knuckle press-fitting device according to claim 5, characterized in that, The crossbeam (450) is slidably connected to the guide rail (430), and a motor (460) that can drive the lead screw (440) to rotate is fixed on the outside of the guide rail (430).

7. The automotive rear steering knuckle press-fitting device according to claim 1, characterized in that, The detection and cleaning assembly (500) also includes a second lead screw (510) rotatably connected to the bending plate (310). A transmission seat (520) is screwed onto the outer side of the second lead screw (510). The transmission seat (520) is rotatably connected to the support cylinder (530). Multiple telescopic tubes (540) are fixedly connected to the outer side of the support cylinder (530). The arc plate (550) is fixedly connected to the telescopic tubes (540) at the corresponding positions.

8. The automotive rear steering knuckle press-fitting device according to claim 7, characterized in that, An extension plate (560) is fixed to the top of the transmission base (520), and an air pump (561) capable of supplying or drawing air to the support cylinder (530) is fixed to the top of the extension plate (560).

9. The automotive rear steering knuckle press-fitting device according to claim 8, characterized in that, The top of the transmission base (520) is fixed with a second motor (570) that can drive the support cylinder (530) to rotate. An overload protector is installed in the power circuit of the second motor (570).

10. The automotive rear steering knuckle press-fitting device according to claim 9, characterized in that, The detection and cleaning component (500) also includes: The guide plate (580) is fixedly connected to the bending plate (310), and the transmission seat (520) is slidably connected to the guide plate (580); Motor 3 (590) is fixedly connected to the bending plate (310), and the output end of motor 3 (590) is fixedly connected to lead screw 2 (510).

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