Air spring semi-winding mechanism for automobile suspension and semi-winding height adjustment method

Abstract

The application discloses a semi-winding mechanism and a semi-winding height adjusting method of an air spring for a vehicle suspension, which comprises a product placing rack (1), and a lifting power element (2) is arranged above the product placing rack (1); a lifting seat (3) is arranged at the extending end of the lifting power element (2), a blocking assembly (4) for blocking the upper end of the air spring is arranged at the middle part of the lifting seat (3), a lateral supporting block (5) is arranged at the side of the lifting seat (3), and a clamping jaw assembly (6) for clamping the side of the air spring is arranged at the lateral supporting block (5); an inflation support (7) is arranged at the front side of the lifting seat (3), and an inflation assembly (8) for inflating gas into the air spring is arranged in the inflation support (7). The stable supporting mechanism is arranged at the top end and the side of the air spring, the bladder skin of the air spring can be stably curled and overlapped, and the semi-winding operation quality of the air spring is improved.

Description

Technical Field

[0001] This invention relates to the field of air spring assembly equipment, specifically to a half-coil mechanism for air springs used in automotive suspensions and a method for adjusting the half-coil height. Background Technology

[0002] Air spring dampers, utilizing the nonlinear stiffness characteristics of air springs, can effectively optimize both comfort and handling, and are increasingly widely used in the automotive industry. During air spring assembly, the air spring's outer sheath needs to be rolled and overlapped to achieve a half-roll operation. Existing devices for half-rolling air springs include, for example, Chinese Utility Model Patent Publication No. CN216830715U, which discloses a device body frame, annular sealing device, end face sealing device, inflation connector, and air spring. The device body frame includes a top frame, a bottom frame, and upper and lower movement guide rods. The frame is connected by the upper and lower moving guide rods; the end face sealing device is fixed inside the bottom frame; the air spring is framed inside the main body frame of the device, and the positions of the annular sealing device and the end face sealing device are respectively adapted to the annular end face of the air spring; the inflation connector is connected to the air spring; a guide rod operating mechanism is also provided above the top frame, and a movable plate is also provided below the guide rod operating mechanism, the movable plate being movably fixed on the upper and lower moving guide rods; the annular sealing device is fixed inside the movable plate, and the guide rod operating mechanism is connected to the movable plate. In this device, the guide rod operating mechanism controls the movable plate to move in the up-down direction of the up-down moving guide rod, thereby causing the annular sealing device to adhere to or move away from the annular surface of the air spring. The end sealing device is pressed tightly against the end face of the air spring, thereby causing the upper and lower end caps of the air spring to move towards each other to compress the air bladder of the air spring. When there is a certain pressure inside the air bladder, it will automatically roll up to complete the half-rolled state of the air bladder. In this process, the air bladders overlap with each other only by relying on the movable plate. The air bladder is made of soft rubber, and the half-rolling operation is not stable if it is only achieved by the movable plate on the end face. The overlap of the air bladders in various directions is prone to deviation. Summary of the Invention

[0003] The purpose of this invention is to provide a half-coil mechanism for air springs used in automotive suspensions and a method for adjusting the half-coil height. This invention improves the quality of the half-coil operation by providing a stabilizing support structure at the top and sides of the air spring, enabling the air spring's bladder to be stably coiled and overlapped.

[0004] The technical solution of the present invention: a half-coil mechanism for an air spring for automotive suspension, comprising a product placement rack, with a lifting power component above the product placement rack; a lifting seat is provided at the extended end of the lifting power component, a sealing component for sealing the upper end of the air spring is provided in the middle of the lifting seat, a lateral support block is provided on the side of the lifting seat, and a gripper assembly for clamping the side of the air spring is provided at the lateral support block; an inflation bracket is provided on the front side of the lifting seat, and an inflation component for inflating gas into the air spring is provided inside the inflation bracket; a detection component for detecting the half-coil height of the air spring is provided on the side of the product placement rack; the detection component includes a laser emitter mounted on a fixed plate of the lifting power component, and a refractive plate and a laser receiving plate are respectively provided on both sides of the product placement rack.

[0005] In the aforementioned semi-coil mechanism for air springs used in automotive suspensions, the product placement rack includes a base, a support plate seat is provided on the base, and side locking brackets for positioning the air springs are symmetrically provided on the support plate seat.

[0006] In the aforementioned half-coil mechanism of the air spring for automotive suspension, the gripper assembly includes a lateral cylinder disposed at the bottom of the lateral support block. The extended end of the lateral cylinder is provided with a lateral seat, the inner end of the lateral seat is provided with a gripper support frame, the end of the gripper support frame is provided with a roller positioning frame, the upper and lower sides of the roller positioning frame are provided with roller positioning columns, the roller positioning columns are provided with rollers, and the inner side of the roller positioning frame is provided with a lateral arc plate.

[0007] In the aforementioned half-coil mechanism of the air spring for automobile suspension, the upper end of the gripper support frame is provided with a limiting rod, which passes through the lateral support block.

[0008] In the aforementioned half-coil mechanism of the air spring for automotive suspension, the sealing assembly includes an outer ring sleeve disposed at the center of the lifting seat, with an upper plug and a lower plug respectively disposed on the upper and lower sides of the outer ring sleeve, and a plug cylinder disposed on the lifting seat, with a plug head disposed at the extended end of the plug cylinder for sealing the upper outlet of the air spring.

[0009] In the aforementioned half-coil mechanism of the air spring for automobile suspension, the inflation assembly includes a slide rail with the lower end of the inflation bracket, a cylinder seat on the moving end of the slide rail, a booster cylinder at the lower part of the cylinder seat, and an inflation nozzle that cooperates with the air hole of the air spring at the extended end of the booster cylinder.

[0010] The specific steps for adjusting the half-coil height of the air spring half-coil mechanism for automotive suspension are as follows:

[0011] Step 1: The laser emitter emits light, which shines on the refraction plate. The light is refracted and shines on the upper end of the air spring. Then the light is projected onto the laser receiving plate. The height of the air spring after half-rolling is determined by whether the light value on the laser receiving plate is zero.

[0012] Step 2: When the height of the air spring after half-coiling is too high, adjust the angle of the refractive plate until the light value on the laser receiving plate is between 0 and 30%. Calculate the deviation distance and, based on the deviation distance, start the gripper assembly to correct the height of the air spring after half-coiling until the height of the air spring after half-coiling meets the requirements.

[0013] When the measured object is too low or just right, determine whether the light value received on the receiving plate is between 0% and 30%. Based on this, determine the two states of the measured object: the air spring half-coil height is too low, or the air spring half-coil height meets the requirements. When the received light value is between 0% and 30%, the air spring half-coil height meets the requirements. When the received light value is >30%, it is determined that the air spring half-coil height is too low. At this time, rotate the refraction plate until the received light value is within the range of 0% to 30%. Calculate the distance by which the air spring half-coil height is too low, and then correct the height again according to the deviation distance until the air spring half-coil height meets the requirements.

[0014] In the aforementioned half-coil height adjustment method, in step 2, when the half-coil height of the air spring is too high, the distance of the excess is calculated, and the distance formula is:

[0015]

[0016] In the formula, H is the height of the half-coil of the air spring, h is the distance of the offset, L is the projected distance between the laser emitter and the air spring, and α is the incident angle of the laser irradiating the refraction plate.

[0017] In the aforementioned half-coil height adjustment method, in step 3, when the half-coil height of the air spring is too low, the distance of the shortfall is calculated, and the distance formula is:

[0018]

[0019] In the formula, H is the height of the half-rolled air spring, h is the lower distance, L is the projected distance between the laser emitter and the air spring, and α is the incident angle of the laser irradiating the refraction plate.

[0020] Compared with the prior art, the present invention has the following advantages:

[0021] 1. In this invention, the product is placed on the product placement rack, the extended end of the lifting power component moves downward, and the upper hole of the air spring is blocked by the sealing component. The gripper assembly in the lateral support block moves toward the side of the air spring, and the gripper assembly clamps the side of the air spring. Driven by the lifting power component, the air spring's air bladder is rolled up and overlapped. At the same time, the inflation component at one end of the lifting seat inflates the air spring. The sealing component and the gripper assembly can stably support the air spring, so that the air spring's bladder can be stably rolled up and overlapped, improving the quality of the half-rolling operation of the air spring.

[0022] 2. The product placement rack has a simple structure and is easy to install. The side locking mechanism provides a stable placement space for the air spring.

[0023] 3. In the sealing assembly, the lower plug fits against the upper end of the air spring, and the plug cylinder drives the sealing head to move downward to block the upper air hole of the air spring, so as to facilitate better inflation of the inflation assembly. The lower plug is embedded in the upper groove of the air spring to achieve better product positioning. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the structure of the present invention;

[0025] Figure 2 This is a schematic diagram of a product placement rack;

[0026] Figure 3 A schematic diagram of the inflatable assembly;

[0027] Figure 4 This is a schematic diagram of the gripper assembly;

[0028] Figure 5 This is a schematic diagram of the roller;

[0029] Figure 6 This is a schematic diagram of the sealing component;

[0030] Figure 7 This is a schematic diagram of a plug head;

[0031] Figure 8 Flowchart for measuring the half-coil height of an air spring;

[0032] Figure 9 This is a schematic diagram of the detection component.

[0033] Figure 10 This is a schematic diagram for detecting when the half-coil height of an air spring is too high.

[0034] Figure 11 This is a schematic diagram for detecting when the half-coil height of an air spring is too low.

[0035] The markings in the attached diagram are as follows: 1-Product placement rack, 2-Lifting power component, 3-Lifting seat, 4-Sealing assembly, 5-Side support block, 6-Gripper assembly, 7-Inflatable bracket, 8-Inflatable assembly, 9-Detection assembly, 10-Base, 11-Support plate seat, 12-Side locking frame, 13-Side cylinder, 14-Side seat, 15-Gripper support frame, 16-Roller positioning frame, 17-Roller positioning column, 18-Roller, 19-Side arc plate, 20-Limiting rod, 21-Outer ring sleeve, 22-Upper plug, 23-Lower plug, 24-Plug cylinder, 25-Sealing head, 26-Slide rail component, 27-Cylinder seat, 28-Boosting cylinder, 29-Inflating nozzle, 30-Laser emitter, 31-Refracting plate, 32-Laser receiving plate. Detailed Implementation

[0036] The present invention will be further described below with reference to the accompanying drawings and embodiments, but this should not be construed as limiting the present invention.

[0037] Example: A semi-coil mechanism for an air spring used in automotive suspension, including a product placement rack 1, as shown in the attached diagram. Figure 1 As shown, the product placement rack is installed on the conveyor end of the conveying assembly. This facilitates the product's entry into the next process after the product has completed a half-roll operation. A lifting power unit 2 is installed above the product placement rack 1. The product placement rack 1 includes a base 10, as shown in the attached diagram. Figure 2 As shown, a support plate 11 is installed on the base 10, and side locking brackets 12 for positioning the air spring are symmetrically installed on the support plate 11. In the product placement rack, the structure is simple and easy to install. The placement space formed by the side locking brackets stably places the air spring. The extended end of the lifting power component 2 is connected to the lifting seat 3. The middle part of the lifting seat 3 is equipped with a sealing component 4 for sealing the upper end of the air spring. The sealing component 4 includes an outer ring sleeve 21 set in the center of the lifting seat 3. The upper and lower sides of the outer ring sleeve 21 are respectively locked with an upper plug 22 and a lower plug 23. A plug cylinder 24 is installed on the lifting seat 3. The extended end of the plug cylinder 24 is connected to a sealing head 25 for sealing the upper outlet of the air spring. Figure 6 and 7 As shown, after the lifting seat moves downward, the lower plug will fit into the groove at the upper end of the air spring. The air port is in this groove. The plug cylinder extends downward, and the plug seals the air port to facilitate better inflation of the inflation assembly. The lower plug is embedded in the groove at the upper end of the air spring, achieving better product positioning. A lateral support block 5 is installed on the side of the lifting seat 3. A gripper assembly 6 for clamping the side of the air spring is installed on the lateral support block 5. The gripper assembly 6 includes a lateral cylinder 13 located at the bottom of the lateral support block 5, as shown in the attached figure. Figure 4As shown, a side seat 14 is installed at the extended end of the side cylinder 13. A gripper support frame 15 is connected to the inner end of the side seat 14. A roller positioning frame 16 is installed at the end of the gripper support frame 15. The upper end of the gripper support frame 15 has a limiting rod 20, which passes through the side support block 5 to limit the movement of the gripper support frame. Roller positioning posts 17 are installed on both the upper and lower sides of the roller positioning frame 16. Rollers 18 are installed on the roller positioning posts 17. Figure 5 As shown, a lateral arc plate 19 is installed on the inner side of the roller positioning frame 16. The lateral cylinder drives the lateral seat to move towards the side of the air spring, and the roller will fit against the side of the air spring, supporting the air spring. With the help of the sealing component, the air spring is firmly positioned, making it more stable during half-rolling operation. An inflation bracket 7 is installed on the front side of the lifting seat 3. An inflation component 8 for inflating gas into the air spring is installed inside the inflation bracket 7. The inflation component 8 includes a slide rail 26 at the lower end of the inflation bracket 7, as shown in the attached figure. Figure 3 As shown, a cylinder seat 27 is installed on the moving end of the slide rail 26. A booster cylinder 28 is provided at the lower part of the cylinder seat 27. An inflation nozzle 29 that cooperates with the air hole of the air spring is provided at the extended end of the booster cylinder 28. The booster cylinder is installed on the inflation bracket through the slide rail and can flexibly adjust the position of the inflation nozzle. The booster cylinder pushes the inflation nozzle to the air hole on the side of the air spring to inflate the air spring. A detection component 9 for detecting the half-coil height of the air spring is provided on the side of the product placement rack 1. The detection component 9 includes a laser emitter 30 installed on the fixed plate of the lifting power component 2. A refractive plate 31 and a laser receiving plate 32 are respectively installed on both sides of the product placement rack 1.

[0038] The method for adjusting the half-coil height of the half-coil mechanism of the air spring for automotive suspension, as described above, includes the following specific steps:

[0039] Step 1: The laser emitter emits light, which shines on the refraction plate. After refraction, the light shines on the upper end of the air spring and is then projected onto the laser receiving plate. The height of the air spring after half-rolling is determined by whether the light value on the laser receiving plate is zero. The placement of the component for measuring the half-rolled height of the air spring is shown in the attached figure. Figure 9 As shown;

[0040] Step 2: When the height of the air spring after half-coiling is too high, adjust the angle of the refractor until the light value on the laser receiver is between 0% and 30% (inclusive). Calculate the distance that is too high. The distance formula is:

[0041]

[0042] In the formula, H is the height of the half-coil of the air spring, h is the distance of the offset, L is the projected distance between the laser emitter and the air spring, and α is the incident angle of the laser irradiating the refraction plate.

[0043] The deviation distance is obtained, and the gripper assembly is activated to correct the half-coil height of the air spring until it meets the requirements. A schematic diagram for detecting when the half-coil height of the air spring is too high is attached. Figure 10 As shown;

[0044] When the measured object is at a low or just right height, determine whether the light value received on the receiving plate is between 0% and 30%. Based on this, determine one of two states of the measured object: the air spring half-coil height is too low, or the air spring half-coil height meets the requirements. When the received light value is between 0% and 30% (inclusive), the air spring half-coil height meets the requirements. When the received light value is >30%, the air spring half-coil height is considered too low. In this case, rotate the refraction plate until the received light value is within the range of 0% to 30%, and calculate the distance at which the air spring half-coil height is too low. The distance formula is:

[0045]

[0046] In the formula, H is the height of the half-rolled air spring, h is the lower distance, L is the projected distance between the laser emitter and the air spring, and α is the incident angle of the laser irradiating the refraction plate.

[0047] Then, adjust the height again according to the deviation until the half-coil height of the air spring meets the requirements. A schematic diagram for detecting when the half-coil height of the air spring is too low is attached. Figure 11 As shown. The entire process for measuring the half-coil height of the air spring is attached. Figure 8 As shown.

[0048] The working principle of this invention is as follows: When the product is placed on the product placement rack, the extended end of the lifting power component moves downward, blocking the upper hole of the air spring through the sealing component. The gripper assembly inside the lateral support block moves towards the side of the air spring, clamping the side of the air spring. Driven by the lifting power component, the air spring's air bladder is rolled up and overlapped. At the same time, the inflation component at one end of the lifting seat inflates the air spring. The sealing component and the gripper assembly can stably support the air spring, enabling the air spring's bladder to be stably rolled up and overlapped, thus improving the quality of the half-rolling operation of the air spring.

[0049] The above embodiments merely illustrate implementation methods of the present invention, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the invention patent. Furthermore, in these embodiments, "up," "down," "left," "right," "front," and "back" represent relative positions only, not absolute positions. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these all fall within the protection scope of the present invention. Therefore, the protection scope of this invention patent should be determined by the appended claims.

Claims

1. A semi-coil mechanism for an air spring used in an automotive suspension, comprising a product placement rack (1), with a lifting power component (2) disposed above the product placement rack (1); characterized in that: The lifting power component (2) has a lifting seat (3) at its extended end. The middle part of the lifting seat (3) has a sealing component (4) for sealing the upper end of the air spring. The side of the lifting seat (3) has a lateral support block (5). The lateral support block (5) has a gripper component (6) for clamping the side of the air spring. The front side of the lifting seat (3) has an inflation bracket (7). The inflation bracket (7) has an inflation component (8) for filling the air spring with gas. The side of the product placement rack (1) has a detection component (9) for detecting the half-coil height of the air spring. The detection component (9) includes a laser emitter (30) set on the fixing plate of the lifting power component (2). The two sides of the product placement rack (1) have a refractive plate (31) and a laser receiving plate (32) respectively. The product placement rack (1) includes a base (10), a support plate seat (11) is provided on the base (10), and side locking frames (12) for positioning air springs are symmetrically provided on the support plate seat (11); the gripper assembly (6) includes a lateral cylinder (13) provided at the bottom of the lateral support block (5), a lateral seat (14) is provided at the extended end of the lateral cylinder (13), a gripper support frame (15) is provided at the inner end of the lateral seat (14), and a roller positioning frame (16) is provided at the end of the gripper support frame (15). 6) Roller positioning posts (17) are provided on both the upper and lower sides. Roller positioning posts (17) are provided with rollers (18). Lateral arc plates (19) are provided inside the roller positioning frame (16). The sealing assembly (4) includes an outer ring sleeve (21) located in the center of the lifting seat (3). The upper and lower sides of the outer ring sleeve (21) are respectively provided with an upper plug (22) and a lower plug (23). A plug cylinder (24) is provided on the lifting seat (3). The extended end of the plug cylinder (24) is provided with a plug (25) for sealing the upper outlet of the air spring.

2. The semi-coil mechanism of the air spring for automobile suspension according to claim 1, characterized in that: The upper end of the gripper support frame (15) is provided with a limiting rod (20), which passes through the lateral support block (5).

3. The semi-coil mechanism of the air spring for automobile suspension according to claim 1, characterized in that: The inflation assembly (8) includes a slide rail (26) at the lower end of the inflation bracket (7), a cylinder seat (27) on the moving end of the slide rail (26), a booster cylinder (28) at the lower part of the cylinder seat (27), and an inflation nozzle (29) at the extended end of the booster cylinder (28) that cooperates with the air hole of the air spring.

4. A method for adjusting the half-coil height of the half-coil mechanism of the air spring for automobile suspension as described in any one of claims 1 to 3, characterized in that: The specific steps are as follows: Step 1: The laser emitter emits light, which shines on the refraction plate. The light is refracted and shines on the upper end of the air spring. Then the light is projected onto the laser receiving plate. The height of the air spring after half-rolling is determined by whether the light value on the laser receiving plate is zero. Step 2: When the height of the air spring after half-coiling is too high, adjust the angle of the refraction plate until the light value on the laser receiver plate is within the range specified by the laser receiver plate. The deviation distance is calculated, and the gripper assembly is activated to correct the half-coil height of the air spring based on the deviation distance until the half-coil height of the air spring meets the requirements. When the value of the object being measured is too low or just right, determine whether the light value received on the receiving board is... Based on this, two states of the object under test are determined: the air spring half-coil height is too low, and the air spring half-coil height meets the requirements; when the received light value is At that time, the air spring half-coil height meets the requirements; when the received light value At this point, it is determined that the air spring is half-coiled too low. The refractive plate is then rotated until the received light value is within the specified range. Within the specified range, calculate the distance by which the half-coil height of the air spring is too low, and then correct the height again according to the deviation distance until the half-coil height of the air spring meets the requirements.

5. The method for adjusting the height of a half-roll as described in claim 4, characterized in that: In step 2, when the half-coil height of the air spring is too high, the distance of the excess is calculated using the following formula: ； In the formula, H is the height of the half-coil of the air spring, h is the distance of the offset, L is the projected distance between the laser emitter and the air spring, and α is the incident angle of the laser irradiating the refraction plate.

6. The method for adjusting the height of a half-roll as described in claim 4, characterized in that: In step 3, when the half-coil height of the air spring is too low, the distance of the shortfall is calculated using the following formula: ； In the formula, H is the height of the half-rolled air spring, h is the lower distance, L is the projected distance between the laser emitter and the air spring, and α is the incident angle of the laser irradiating the refraction plate.

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