An air suspension assembly device

Abstract

This invention discloses an air suspension assembly device, belonging to the technical field of vehicle suspension system assembly equipment. The air suspension assembly device includes a worktable with two positioning side plates. Two feeding structures are located on one side of the worktable. Each feeding structure includes a feeding support, on which a swing arm is rotatably mounted. The free end of the swing arm has a mounting groove containing a pin. An adjusting roller is positioned above the mounting groove, which is always located on one side of the adjusting roller. The bottom of a guide leaf spring in the air suspension is rotatably placed in the mounting groove via the pin and rests inclined against the adjusting roller. When the swing arm rotates upward, the distance between the mounting groove and the adjusting roller shortens. A telescopic rod is fixedly mounted on the worktable, used to change the vertical height of the adjusting roller. This reduces the burden of manual labor and improves the efficiency of air suspension installation.

Description

Technical Field

[0001] This invention relates to the field of vehicle suspension system assembly equipment technology, and more specifically, to an air suspension assembly device. Background Technology

[0002] As a core component of modern commercial vehicle, bus, and high-end passenger vehicle chassis, air suspension systems significantly improve vehicle ride comfort, load adaptability, and road friendliness. In developed countries, the adoption rate of air suspension in medium-sized and larger buses, as well as heavy-duty trucks and trailers, is already quite high. With the transformation and upgrading of domestic commercial vehicle manufacturing towards automation and high precision, the assembly efficiency and positioning accuracy of air suspension supports have become key factors affecting the consistency of the entire vehicle chassis.

[0003] A search revealed that Chinese patent CN206326523U provides an adjustable-distance air suspension support assembly fixture. This device uses a main support frame as a support platform. The positioning side plates cooperate with the side plate pads in the middle of the two sides of the trapezoidal groove to support and fix the main body of the air suspension support. The distance between the positioning side plates is adjusted by a bidirectional screw. The auxiliary positioning frame, the bending connecting plate, and the auxiliary positioning fixture cooperate to adjust the rotation angle of the air suspension support and fix the air suspension support. This facilitates the accurate positioning of the air suspension support, reduces labor intensity and adjustment time, and improves production efficiency.

[0004] The aforementioned device requires manual handling of the bending connecting plate when positioning it, resulting in poor automation. Manual positioning and placement of the bending connecting plate is also inefficient. Therefore, we propose an air suspension assembly device. Summary of the Invention

[0005] 1. Technical problems to be solved The purpose of this invention is to provide an air suspension assembly device to solve the problems mentioned in the background art.

[0006] 2. Technical Solution This invention is achieved through the following technical solution: An air suspension assembly device includes a workbench with two positioning side plates. Two feeding structures are located on one side of the workbench. Each feeding structure includes a feeding support, on which a swing arm is rotatably mounted. The free end of each swing arm has a mounting groove containing a pin. An adjusting roller is positioned above the mounting groove, which is always located on one side of the adjusting roller. A guide leaf spring in the air suspension is rotatably placed in the mounting groove via a pin and rests inclined against the adjusting roller. When the swing arm rotates upward, the distance between the mounting groove and the adjusting roller shortens. A telescopic rod is fixedly mounted on the workbench to change the vertical height of the adjusting roller.

[0007] As an optional solution to the technical solution of this application, a slider is slidably installed on the feeding support, the slider slides perpendicular to the direction of the two positioning side plates, and the swing arm is rotatably installed on the slider; a rocker arm is coaxially fixedly connected to the rocker arm, and a limit block is fixedly connected to the feeding support, the limit block being located between the rocker arm and the worktable; when the slider moves toward the limit block, the rocker arm rotates under the push of the limit block.

[0008] As an optional solution to the technical solution of this application, the rotation axis of the rocker arm is higher than the upper surface of the limiting block, and the rocker arm can slide on the upper surface of the limiting block.

[0009] As an optional solution to the technical solution of this application, the swing arm has an opening that communicates with the mounting groove, and the pin is inserted into the mounting groove through the opening.

[0010] As an optional solution to the technical solution in this application, when the swing arm rotates upward to its highest position, the opening faces the horizontal direction.

[0011] As an optional solution to the technical solution of this application, a connector is provided between the opening and the adjusting roller. The connector is fixedly installed on the feeding support. The connector is horizontally inserted into the opening to limit the pin shaft in the mounting groove.

[0012] As an optional solution to the technical solution in this application, a drive motor is fixedly installed on the feeding support, and a lead screw is connected to the output end of the drive motor. The lead screw passes through the slider and is threadedly connected to it, and is used to drive the slider to move relative to the feeding support.

[0013] As an optional solution to the technical solution of this application, the workbench is provided with a clamping structure on the side away from the feeding structure, and the clamping structure is used to clamp the guide leaf spring laterally.

[0014] As an optional solution to the technical solution of this application, the clamping structure includes a clamping support, with clamping blocks on both sides of the clamping support. The clamping blocks are inserted into the clamping support and slidably connected to it. An insert plate is slidably inserted into the clamping support. The moving direction of the insert plate is perpendicular to the moving direction of the clamping blocks. A first guide groove and a second guide groove are formed on the insert plate. The first guide groove and the second guide groove are both inclined and in opposite directions. A push rod is slidably provided in both the first guide groove and the second guide groove. The push rods in the first guide groove and the second guide groove are respectively connected and fixed to the two insert plates.

[0015] As an optional solution to the technical solution of this application, a baffle is provided above the clamping structure, and the baffle can slide toward one side of the worktable.

[0016] 3. Beneficial effects Compared with the prior art, the beneficial effects of the present invention are: 1) By setting up a feeding structure, this application can transport the guide leaf spring in the air suspension to the top of the square shaft. The relative position of the guide leaf spring and the square shaft can be adjusted by using the telescopic rod, which makes it convenient for users to install the guide leaf spring onto the square shaft, reduces the burden of manual operation, and helps to improve the installation efficiency of the air suspension.

[0017] 2) This application simplifies the fixing method of the guide leaf spring by setting an opening in the rocker arm, which makes it convenient for users to place the pin at the end of the guide leaf spring into the mounting groove; and by using a plug to seal the opening, it can be ensured that the guide leaf spring will not detach during the downward rotation and placement on the square shaft; and when the feeding structure is reset, the pin can detach from the mounting groove through the opening, and the whole process does not require manual insertion, which further reduces the burden of manual operation and increases the installation efficiency of air suspension.

[0018] 3) By setting up a clamping structure and a baffle, this application can fix the guide leaf spring placed on the square shaft. After the feeding structure is reset, it can still support and limit the guide leaf spring, which facilitates the assembly of other components of the air suspension. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the first state of the overall structure of an air suspension assembly device. Figure 2 This is a schematic diagram of the loading structure of an air suspension assembly device; Figure 3 This is an exploded view of the loading structure of an air suspension assembly device. Figure 4 This is a schematic diagram of the clamping structure of an air suspension assembly device; Figure 5 This is an exploded view of the clamping structure of an air suspension assembly device. Figure 6 This is a schematic diagram of the second state of the overall structure of an air suspension assembly device; In the diagram: 1. Workbench; 2. Positioning side plate; 3. Feeding structure; 301. Feeding support; 302. Swing arm; 3021. Mounting groove; 3022. Pin shaft; 3023. Rocker arm; 3024. Opening; 303. Slider; 304. Limit block; 305. Adjusting roller; 306. Connector; 307. Telescopic rod; 4. Guide leaf spring; 5. Drive motor; 6. Lead screw; 7. Clamping structure; 701. Clamping support; 702. Clamping block; 703. Insert plate; 7031. First guide groove; 7032. Second guide groove; 704. Push rod; 8. Baffle. Detailed Implementation

[0020] The technical solution of the present invention will now be clearly and completely described in conjunction with the accompanying drawings.

[0021] Please see Figures 1 to 3 This invention provides an air suspension assembly device, including a workbench 1, two positioning side plates 2 on the workbench 1, and two feeding structures 3 on one side of the workbench 1. The feeding structure 3 includes a feeding support 301, a swing arm 302 rotatably mounted on the feeding support 301, an installation groove 3021 opened at the free end of the swing arm 302, a pin 3022 provided in the installation groove 3021, and an adjusting roller 305 provided above the installation groove 3021. The installation groove 3021 is always located on one side of the adjusting roller 305. The bottom of the guide leaf spring 4 in the air suspension is rotatably placed in the mounting groove 3021 via the pin 3022 and rests against the adjusting roller 305 in an inclined position; When the swing arm 302 rotates upward, the distance between the mounting groove 3021 and the adjusting roller 305 is shortened; a telescopic rod 307 is fixedly installed on the worktable 1, and the telescopic rod 307 is used to change the vertical height of the adjusting roller 305.

[0022] When assembling the air suspension using this solution, firstly, the wheel hub is limited by the positioning side plate 2, and the square shaft is fixed above the worktable 1. A pin 3022 is inserted into the end of the guide leaf spring 4 in the air suspension, and the lower end of the guide leaf spring 4 is limited in the mounting groove 3021 by the pin 3022. Then, the upper end of the guide leaf spring 4 is pressed against the adjusting roller 305. After that, the drive swing arm 302 is rotated upward to lift the lower end of the guide leaf spring 4 upward. As the mounting groove 3021 moves closer to the adjusting roller 305, the length of the guide leaf spring 4 extending out of the adjusting roller 305 increases continuously, eventually extending to the surface of the square shaft. Next, the control telescopic rod 307 is shortened downward, so that the guide leaf spring 4 can rotate downward and finally fall on the surface of the square shaft. Finally, the position of the guide leaf spring 4 is finely adjusted and fixed on the square shaft, and the feeding structure 3 is reset. Then, the other accessories of the air suspension are installed, and finally the air suspension is assembled onto the square shaft.

[0023] As a preferred embodiment of this application, a slider 303 is slidably mounted on the feeding support 301. The slider 303 slides perpendicular to the direction of the two positioning side plates 2. A swing arm 302 is rotatably mounted on the slider 303. A rocker arm 3023 is coaxially fixedly connected to the rocker arm 302. A limit block 304 is fixedly connected to the feeding support 301. The limit block 304 is located between the rocker arm 3023 and the worktable 1. When the slider 303 moves toward the limit block 304, the rocker arm 3023 rotates under the push of the limit block 304.

[0024] Preferably, a drive motor 5 is fixedly installed on the feeding support 301, and a lead screw 6 is connected to the output end of the drive motor 5. The lead screw 6 passes through the slider 303 and is threadedly connected to it, and is used to drive the slider 303 to move relative to the feeding support 301.

[0025] The drive motor 5 drives the lead screw 6 to rotate, allowing the slider 303 to move towards the worktable 1. The rocker arm 3023, pushed by the limit block 304, drives the coaxially fixed swing arm 302 to rotate upwards, thus lifting the lower end of the guide spring 4. Using the lead screw 6 to drive the slider 303 utilizes the self-locking characteristic of the threaded connection to achieve accurate control of the slider 303's position.

[0026] As a preferred embodiment of this application, the swing arm 302 has an opening 3024 that communicates with the mounting groove 3021. The pin 3022 is inserted into the mounting groove 3021 through the opening 3024, which facilitates the installation of the lower end of the guide leaf spring 4 in the mounting groove 3021.

[0027] Preferably, when the swing arm 302 rotates upward to the highest position, the opening 3024 faces the horizontal direction; when the swing arm 302 is in the initial position, the opening 3024 can face upward, so that the pin 3022 at the end of the guide spring 4 can be conveniently inserted into the mounting groove 3021 through the opening 3024.

[0028] Since the guide spring 4 is always tilted upward during the entire upward rotation of the swing arm 302, there is no gravitational component force with the same orientation as the opening 3024, and the guide spring 4 can be stably fixed by the inner wall of the mounting groove 3021 and the adjusting roller 305.

[0029] As a preferred embodiment of this application, the rotation axis of the rocker arm 3023 is higher than the upper surface of the limiting block 304, and the rocker arm 3023 can slide on the upper surface of the limiting block 304. An insert 306 is provided between the opening 3024 and the adjusting roller 305. The insert 306 is fixedly installed on the feeding support 301. The insert 306 and the opening 3024 are horizontally inserted and matched to limit the pin 3022 in the mounting groove 3021. The side of the insert 306 that contacts the pin 3022 is provided with an elastic rubber layer, so that the end of the insert 306 can undergo a small-amplitude elastic deformation.

[0030] After the rocker arm 3023 rotates upward to its highest position, it will move above the limit block 304. At this time, the slider 303 continues to move towards the worktable 1, and the rocker arm 3023 can make horizontal displacement, so that the connector 306 can be inserted into the opening 3024, limiting the pin 3022 in the mounting groove 3021, preventing the telescopic rod 307 from shortening downward and the guide leaf spring 4 from falling out of the opening 3024 during downward rotation, which would cause danger.

[0031] By adopting the above structure, when resetting the feeding structure 3, it is only necessary to control the drive motor 5 to move in the reverse direction; during the horizontal backward movement of the rocker arm 3023, the pin 3022 can disengage from the mounting groove 3021 through the opening 3024; finally, it rotates downward back to the initial position, and the whole process does not require manual intervention.

[0032] As a preferred embodiment of this application, a clamping structure 7 is provided on the side of the workbench 1 away from the feeding structure 3. The clamping structure 7 is used to clamp the guide leaf spring 4 laterally. The clamping structure 7 includes a clamping support 701. Clamping blocks 702 are provided on both sides of the clamping support 701. The clamping blocks 702 are inserted into the clamping support 701 and are slidably connected to the clamping support 701. An insert plate 703 is slidably inserted into the clamping support 701. The moving direction of the insert plate 703 is perpendicular to the moving direction of the clamping blocks 702. A first guide groove 7031 and a second guide groove 7032 are provided on the insert plate 703. The first guide groove 7031 and the second guide groove 7032 are both inclined and in opposite directions. A push rod 704 is slidably provided in the first guide groove 7031 and the second guide groove 7032. The push rods 704 in the first guide groove 7031 and the second guide groove 7032 are respectively connected and fixed to the two insert plates 703.

[0033] After the guide spring 4 is placed on the square shaft by the feeding structure 3, the drive plate 703 moves, causing the clamping blocks 702 on both sides to come together and clamp the guide spring 4, thereby achieving fine adjustment and limiting of the position of the guide spring 4 and guiding the guide spring 4 to the accurate position.

[0034] In addition, a baffle 8 is provided above the clamping structure 7. The baffle 8 can slide toward the worktable 1 and can extend above the guide spring 4 located between the two clamping blocks 702 to prevent the guide spring 4 from tilting upward during installation.

Claims

1. An air suspension assembly, characterized by: The system includes a workbench (1), on which two positioning side plates (2) are provided. Two feeding structures (3) are provided on one side of the workbench (1). Each feeding structure (3) includes a feeding support (301), on which a swing arm (302) is rotatably mounted. The free end of the swing arm (302) has a mounting groove (3021), and a pin (3022) is provided within the mounting groove (3021). An adjusting roller (305) is provided above the mounting groove (3021). The mounting groove (3021) is always located on one side of the adjusting roller (305); the bottom of the guide leaf spring (4) in the air suspension is rotatably placed in the mounting groove (3021) through the pin (3022) and leans against the adjusting roller (305) in an inclined position; when the swing arm (302) rotates upward, the distance between the mounting groove (3021) and the adjusting roller (305) is shortened; a telescopic rod (307) is fixedly installed on the worktable (1), and the telescopic rod (307) is used to change the vertical height of the adjusting roller (305).

2. An air suspension assembly as set forth in claim 1, characterized in that: A slider (303) is slidably mounted on the feeding support (301). The slider (303) slides perpendicular to the direction of the two positioning side plates (2). The swing arm (302) is rotatably mounted on the slider (303). The swing arm (302) is coaxially fixedly connected to a rocker arm (3023). A limit block (304) is fixedly connected on the feeding support (301). The limit block (304) is located between the rocker arm (3023) and the worktable (1). When the slider (303) moves toward the limit block (304), the rocker arm (3023) rotates under the push of the limit block (304).

3. An air suspension assembly as set forth in claim 2, characterized in that: The rotation axis of the rocker arm (3023) is higher than the upper surface of the limiting block (304), and the rocker arm (3023) can slide on the upper surface of the limiting block (304).

4. An air suspension assembly as set forth in claim 1 wherein: The swing arm (302) has an opening (3024) that communicates with the mounting groove (3021), and the pin (3022) is inserted into the mounting groove (3021) through the opening (3024).

5. An air suspension assembly device according to claim 4, characterized in that: When the swing arm (302) rotates upward to its highest position, the opening (3024) faces the horizontal direction.

6. An air suspension assembly device according to claim 5, characterized in that: A connector (306) is provided between the opening (3024) and the adjusting roller (305). The connector (306) is fixedly installed on the feeding support (301). The connector (306) is horizontally inserted into the opening (3024) to limit the pin (3022) in the mounting groove (3021).

7. An air suspension assembly device according to claim 2, characterized in that: A drive motor (5) is fixedly installed on the feeding support (301). The output end of the drive motor (5) is connected to a lead screw (6). The lead screw (6) passes through the slider (303) and is threadedly connected to it, and is used to drive the slider (303) to move relative to the feeding support (301).

8. An air suspension assembly device according to claim 1, characterized in that: The workbench (1) is provided with a clamping structure (7) on the side away from the feeding structure (3), and the clamping structure (7) is used to clamp the guide leaf spring (4) laterally.

9. An air suspension assembly device according to claim 8, characterized in that: The clamping structure (7) includes a clamping support (701), with clamping blocks (702) on both sides of the clamping support (701). The clamping blocks (702) are inserted into the clamping support (701) and slidably connected to it. An insert plate (703) is slidably inserted into the clamping support (701). The moving direction of the insert plate (703) is perpendicular to the moving direction of the clamping blocks (702). The insert plate (703) has openings on it. The first guide groove (7031) and the second guide groove (7032) are both inclined and in opposite directions. A push rod (704) is slidably provided in the first guide groove (7031) and the second guide groove (7032). The push rod (704) in the first guide groove (7031) and the second guide groove (7032) is connected and fixed to two insert plates (703) respectively.

10. An air suspension assembly device according to claim 8, characterized in that: The clamping structure (7) is provided with a baffle (8) above it, and the baffle (8) can slide toward the worktable (1).

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