Air spring bag skin buckling device

By using an independent electric cylinder system and closed-loop control with high-precision sensors, the problem of existing equipment being unable to adapt to the high precision of air spring bladder crimping for passenger vehicles has been solved, thus improving the precision and consistency of air spring bladder crimping.

CN116442548BActive Publication Date: 2026-05-12FAW TOKICO SHOCK ABSORBER
View PDF 2 Cites 0 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
FAW TOKICO SHOCK ABSORBER
Filing Date
2023-04-26
Publication Date
2026-05-12

AI Technical Summary

Technical Problem

Existing equipment cannot meet the high precision requirements of passenger vehicle clamping machines and cannot achieve independent control of the force of each valve, resulting in defects in the circumferential compression process of air springs.

Method used

The system employs multiple independent electric cylinder systems for independent control of 12 segments, combined with high-precision sensors for force/displacement parameter monitoring, forming a closed-loop control, and uses a synchronous guidance system for coordinated axial and circumferential positioning design.

Benefits of technology

This enables independent force and displacement monitoring for each flap, improving product reliability and consistency, ensuring uniform circumferential force, and enhancing the accuracy of air spring bladder buckling.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN116442548B_ABST
    Figure CN116442548B_ABST
Patent Text Reader

Abstract

The application discloses an air spring bag skin buckling equipment and relates to the technical field of air spring processing. The application discloses an air spring bag skin buckling equipment and relates to the technical field of air spring processing. The application discloses an air spring bag skin buckling equipment and relates to the technical field of air spring processing.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] This invention relates to the field of air spring processing technology, specifically to an air spring bladder crimping device. Background Technology

[0002] In the current assembly and crimping process of passenger car air spring products, there is no suitable crimping equipment. Instead, oil pipe crimping machines and similar equipment are used. These machines use a main hydraulic cylinder to mechanically link eight petals to achieve radial inward tightening.

[0003] The working principle of the existing equipment cannot meet the requirements of high precision of the current passenger car clamping machine and the independent monitoring parameters of each segment; the existing equipment monitors the hydraulic pressure and calculates the required force value based on the pressure value, but cannot achieve independent separation of the control force of each segment; this causes defects in the circumferential compression process of the air spring airbag. Summary of the Invention

[0004] To address the shortcomings of existing technologies, this invention provides an air spring bladder clamping device, which solves the problems mentioned in the background section.

[0005] To achieve the above objectives, the present invention provides the following technical solution: an air spring bladder pressing device, comprising a base, a processing platform fixedly connected to the top of the base, an integrated control device on the top of the processing platform, a handrail fixedly installed on the right side of the processing platform, the bottom height of the handrail being the same as the bottom height of the base, the center of the processing platform being hollowed out, the processing platform having a hollowed-out interlayer, and a processing device being installed inside the interlayer, the processing end of the processing device being located at the center of the processing platform;

[0006] The processing device consists of multiple independent electric cylinder systems arranged evenly around the circumference. Each independent electric cylinder system is equipped with a reducer, a driver, a drive motor, a laser displacement sensor, and a force sensor. The reducer is electrically connected to the driver, the laser displacement sensor, and the force sensor, and the driver is electrically connected to the drive motor.

[0007] By controlling multiple independent segments, each tooling segment can be individually monitored for force and displacement, forming a closed-loop control system. Building upon existing systems, and addressing the limitations of larger diameter products, a new technical solution with 12 independently controllable segments is proposed. This allows for independent circumferential control of all 12 segments, each controlled by a separate electric cylinder and monitored using high-precision sensors to create an independent closed-loop control system, ensuring uniform circumferential force. Roundness detection is also possible; by monitoring and analyzing the displacement of the 12 independent tooling segments, the roundness of the 12 segments can be calculated, improving product reliability and consistency.

[0008] Preferably, there are twelve independent electric cylinder systems, and a processing channel is set at the center of the area enclosed by the twelve independent electric cylinder systems. The laser displacement sensor and force sensor are used to collect displacement signals and force signals, respectively, and the displacement signals and force signals collected by the laser displacement sensor and force sensor are transmitted to the integrated control device.

[0009] Preferably, a synchronous guidance system is provided inside the center of the processing platform. The top of the synchronous guidance system is located above the processing platform, the bottom of the synchronous guidance system is located below the processing platform, and the synchronous guidance system passes through the processing channel at the center of the area enclosed by twelve independent electric cylinder systems.

[0010] Preferably, the synchronous guidance system includes two servo motors and two transmission shafts. The servo motors are fixedly installed at the bottom of the processing platform. The output end of each servo motor is connected to a transmission shaft, and the transmission direction of the transmission shaft is vertical. Based on the processing, the synchronous guidance system is adopted. The lifting mechanism adopts two independent mechanisms for coordinated axial and circumferential positioning design, which can accurately deliver the workpiece to the processing plane position while ensuring coaxiality.

[0011] Preferably, the drive motor is used to control the processing force of the processing device.

[0012] This invention provides an air spring bladder clamping device. It has the following beneficial effects:

[0013] (1) This invention achieves independent control of multiple petals, with each tooling petal capable of individual force and displacement monitoring, forming a closed-loop control in parallel. Based on the original design, and addressing the issue of products with larger diameters being unsuitable, a technical solution of 12 independently controllable petals is proposed, enabling independent control of 12 petals in the circumferential direction. Each petal is controlled by a separate electric cylinder and uses high-precision sensors for independent force / displacement parameter data monitoring, forming an independent closed-loop control to ensure the uniformity of circumferential force. It can also perform roundness detection by monitoring the displacement of 12 independent toolings and performing calculations and analyses to obtain the displacement roundness of the 12 petals. This function can improve the reliability and consistency of the product.

[0014] (2) Based on the cooperative processing, the present invention adopts a synchronous guidance system. The lifting mechanism adopts two independent mechanisms for coordinated axial and circumferential positioning design, which can accurately deliver the workpiece to the processing plane position while ensuring coaxiality. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0016] Figure 2 This is a schematic diagram of the processing device in this invention.

[0017] In the diagram: 1. Base; 2. Machining platform; 3. Integrated control device; 4. Escalator; 5. Independent electric cylinder system; 51. Reducer; 52. Driver; 53. Drive motor; 54. Laser displacement sensor; 55. Force sensor; 6. Synchronous guidance system; 61. Servo motor; 62. Transmission shaft. Detailed Implementation

[0018] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0019] Example 1

[0020] Please see Figure 1-2 This embodiment provides a technical solution: an air spring bladder pressing device, including a base 1, a processing platform 2 fixedly connected to the top of the base 1, an integrated control device 3 set on the top of the processing platform 2, a handrail 4 fixedly installed on the right side of the processing platform 2, the bottom height of the handrail 4 being the same as the bottom height of the base 1, the center of the processing platform 2 being hollowed out, the processing platform 2 having a hollowed-out interlayer, and a processing device being set inside the interlayer, with the processing end of the processing device located at the center of the processing platform 2;

[0021] The processing device consists of multiple independent electric cylinder systems 5 arranged evenly around the circumference. Each independent electric cylinder system 5 is equipped with a reducer 51, a driver 52, a drive motor 53, a laser displacement sensor 54, and a force sensor 55. The reducer 51 is electrically connected to the driver 52, the laser displacement sensor 54, and the force sensor 55. The driver 52 is electrically connected to the drive motor 53.

[0022] There are twelve independent electric cylinder systems 5. A processing channel is set at the center of the area enclosed by the twelve independent electric cylinder systems 5. The laser displacement sensor 54 and the force sensor 55 are used to collect displacement signals and force signals, respectively. The displacement signals and force signals collected by the laser displacement sensor 54 and the force sensor 55 are transmitted to the integrated control device 3.

[0023] By controlling multiple independent segments, each tooling segment can be individually monitored for force and displacement, forming a closed-loop control system. Building upon existing systems, and addressing the limitations of larger diameter products, a new technical solution with 12 independently controllable segments is proposed. This allows for independent circumferential control of all 12 segments, each controlled by a separate electric cylinder and monitored using high-precision sensors to create an independent closed-loop control system, ensuring uniform circumferential force. Roundness detection is also possible; by monitoring and analyzing the displacement of the 12 independent tooling segments, the roundness of the 12 segments can be calculated, improving product reliability and consistency.

[0024] In this embodiment, the workpiece is placed at the center of the processing platform 2, the processing device is turned on, and the twelve independent electric cylinder systems 5 inside the processing device process the workpiece. After processing, the independent electric cylinder systems 5 release the workpiece, and the workpiece can be removed. At the same time, during the processing, the laser displacement sensor 54 and force sensor 55 inside the independent electric cylinder systems 5 can detect the displacement and force signals of the workpiece, and the laser displacement sensor 54 and force sensor 55 will transmit the detected displacement and force signals to the integrated control device 3. The integrated control device 3 sends control signals to the reducer 51 and the driver 52. The driver 52 controls the drive motor 53 to work, and the drive motor 53 adjusts the moving distance of the output end of the independent electric cylinder systems 5, thereby adjusting the processing force in real time according to the displacement and force of the workpiece to ensure the uniformity of the circumferential force.

[0025] Example 2

[0026] Please see Figure 1-2 This embodiment provides a technical solution: an air spring bladder pressing device, including a base 1, a processing platform 2 fixedly connected to the top of the base 1, an integrated control device 3 set on the top of the processing platform 2, a handrail 4 fixedly installed on the right side of the processing platform 2, the bottom height of the handrail 4 being the same as the bottom height of the base 1, the center of the processing platform 2 being hollowed out, the processing platform 2 having a hollowed-out interlayer, and a processing device being set inside the interlayer, with the processing end of the processing device located at the center of the processing platform 2;

[0027] The processing device consists of multiple independent electric cylinder systems 5 arranged evenly around the circumference. Each independent electric cylinder system 5 is equipped with a reducer 51, a driver 52, a drive motor 53, a laser displacement sensor 54, and a force sensor 55. The reducer 51 is electrically connected to the driver 52, the laser displacement sensor 54, and the force sensor 55. The driver 52 is electrically connected to the drive motor 53.

[0028] There are twelve independent electric cylinder systems 5. A processing channel is set at the center of the area enclosed by the twelve independent electric cylinder systems 5. The laser displacement sensor 54 and the force sensor 55 are used to collect displacement signals and force signals, respectively. The displacement signals and force signals collected by the laser displacement sensor 54 and the force sensor 55 are transmitted to the integrated control device 3.

[0029] A synchronous guidance system 6 is installed inside the center of the machining platform 2. The top of the synchronous guidance system 6 is located above the machining platform, and the bottom of the synchronous guidance system 6 is located below the machining platform 2. The synchronous guidance system 6 passes through the machining channel at the center of the area enclosed by the twelve independent electric cylinder systems 5.

[0030] The synchronous guidance system 6 includes two servo motors 61 and two transmission shafts 62. The servo motors 61 are fixedly installed at the bottom of the processing platform 2. The output end of each servo motor 61 is connected to a transmission shaft 62, and the transmission direction of the transmission shaft 62 is vertical. Based on the processing, the synchronous guidance system 6 is adopted. The synchronous guidance system 6 adopts two independent mechanisms for coordinated axial and circumferential positioning design, which can accurately deliver the workpiece to the processing plane position while ensuring coaxiality.

[0031] The drive motor 53 is used to control the processing force of the processing device.

[0032] In this embodiment, the workpiece is placed on the transmission shaft 62, the servo motor 61 is started, and the output shaft of the servo motor 61 drives the transmission shaft 62 to move, causing the transmission shaft 62 to move vertically up and down, which in turn causes the transmission shaft 62 to move the workpiece vertically, thereby realizing the feeding operation. After processing is completed, the reverse switch of the servo motor 61 is started to automatically realize the unloading operation of the workpiece.

[0033] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. An air spring bladder clamping device, comprising a base (1), characterized in that: The base (1) is fixedly connected to the top of the processing platform (2), and the top of the processing platform (2) is provided with an integrated control device (3). The right side of the processing platform (2) is fixedly installed with a hand ladder (4). The bottom height of the hand ladder (4) is the same as the bottom height of the base (1). The center of the processing platform (2) is hollowed out. The processing platform (2) has a hollowed-out interlayer inside, and a processing device is provided inside the interlayer. The processing end of the processing device is located at the center of the processing platform (2). The processing device consists of multiple independent electric cylinder systems (5) arranged evenly in a circle. Each independent electric cylinder system (5) is equipped with a reducer (51), a driver (52), a drive motor (53), a laser displacement sensor (54), and a force sensor (55). The reducer (51) is electrically connected to the driver (52), the laser displacement sensor (54), and the force sensor (55). The driver (52) is electrically connected to the drive motor (53). There are twelve independent electric cylinder systems (5). A processing channel is set at the center of the area enclosed by the twelve independent electric cylinder systems (5). The laser displacement sensor (54) and the force sensor (55) are used to collect displacement signals and force signals, respectively. The displacement signals and force signals collected by the laser displacement sensor (54) and the force sensor (55) are transmitted to the integrated control device (3).

2. The air spring bladder clamping device according to claim 1, characterized in that: A synchronous guidance system (6) is installed inside the center of the processing platform (2). The top of the synchronous guidance system (6) is located above the processing platform, and the bottom of the synchronous guidance system (6) is located below the processing platform (2). The synchronous guidance system (6) passes through the processing channel at the center of the area enclosed by the twelve independent electric cylinder systems (5).

3. The air spring bladder clamping device according to claim 2, characterized in that: The synchronous guidance system (6) includes two servo motors (61) and two transmission shafts (62). The servo motors (61) are fixedly installed at the bottom of the processing platform (2). The output end of each servo motor (61) is connected to a transmission shaft (62), and the transmission direction of the transmission shaft (62) is vertical.

4. The air spring bladder clamping device according to claim 1, characterized in that: The drive motor (53) is used to control the processing force of the processing device.