Automobile tail door supporting rod and spring fatigue test equipment
By designing a fatigue testing equipment that integrates tailgate poles and large spring parts, the problem that the existing technology cannot be tested simultaneously is solved, efficient and low-cost testing is achieved, and product quality is ensured.
Patent Information
- Application Number
- CN202411908915.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-24
- Publication Date
- 2025-02-25
AI Technical Summary
The prior art cannot simultaneously perform fatigue testing of tailgate struts and large spring parts, resulting in increased testing time and cost, and product quality is difficult to guarantee.
Design a car tailgate strut and spring fatigue testing equipment, including a test platform, spring fatigue testing components, tailgate strut fatigue testing components, control systems and drive systems. By integrating test components and automated control systems, fatigue testing of tailgate strut and large spring parts is realized.
The fatigue testing integration of tailgate struts and large spring parts is achieved, which improves testing efficiency, reduces testing costs, and ensures product quality.
Smart Images
Figure CN119509951A_ABST
Abstract
Description
Technical Field
[0001] The invention relates to a universal device for testing tailgate support rods and spring fatigue, which can realize predetermined functions in testing products and parts, and belongs to the technical field of mechanical testing. Background Art
[0002] In the automotive manufacturing industry, tailgate struts and large spring parts are key components that play an important role in maintaining vehicle safety and providing comfort. However, current fatigue testing equipment usually only targets a single component and cannot perform fatigue tests on tailgate struts and large spring parts at the same time. The struts and springs use different equipment to complete their own tests independently, and the purpose of fatigue testing of parts is achieved through thousands of times of driving compression and release extension of the equipment. This not only increases testing time and cost, but also affects the product and increases the workload of measurement system analysis.
[0003] The manufacturing cost of this independent structure product is high and the structure is complicated. Therefore, it is of great practical value to develop an integrated device that can simultaneously perform fatigue tests on the tailgate support rod and the large spring parts. Summary of the invention
[0004] The purpose of the present invention is to provide a car tailgate support rod and spring fatigue testing equipment, which can realize the fatigue testing of tailgate support rod and large spring parts integrated into one device, greatly improving the testing efficiency, reducing the testing cost, and ensuring the product quality at the same time.
[0005] The technical solution of the present invention is: A vehicle tailgate support rod and spring fatigue test equipment, comprising a test platform, a spring fatigue test component, a tailgate support rod fatigue test component, a control system and a drive system. The test platform is used to support the tailgate support rod and the large spring parts test frame, and adopts a steel frame structure, and a whole thick steel plate is used on the surface to bear the weight of the main components; The spring fatigue test component includes a spring test mount, which is a base for installing a large spring. The spring is installed in a high-strength plastic sleeve, and the shape of the spring in the stroke is limited by the inner wall of the sleeve and the guide column; the end is connected to the thick steel plate of the test platform through a locking structure; The tailgate strut fatigue test component includes a strut test frame. The tailgate strut mounting seat is a base for mounting the tailgate strut. The ball sleeves at both ends of the strut are respectively mounted on the mounting column seat and the coupling. The strut also passes through three limit through-hole seats in the axial direction.
[0006] Furthermore, the control system: uses Siemens PLC (ST20) as the main controller, cooperates with SMC sensor (M9PVL), SMC cylinder (MDBMDB1L80) and AirTac solenoid valve (4V210) as actuators, and then uses self-written control programs to achieve automated testing; the notification system achieves human-computer interaction with the Siemens touch screen (700IE3) through a network cable, can set test requirements according to requirements, and display the current test status.
[0007] Furthermore, the driving system: uses a 220V power supply and compressed air as a driving source to provide the required power for the driving mechanism and the load applying mechanism, and the piston rod A and the piston rod B of the cylinder are respectively connected to the tailgate support rod and the front end of the spring to perform reciprocating motion.
[0008] Furthermore, all bases are fixedly connected to the test platform by high-strength bolts.
[0009] The beneficial effects of the present invention are as follows: the tailgate support rod and the large spring part can be placed on the test platform, and the tailgate support rod and the large spring part can be driven to reciprocate by the driving mechanism; the control system automatically controls the actions of the driving mechanism and the load applying mechanism according to preset parameters, and records and processes the test data in real time; the energy supply system provides the required energy for the driving mechanism, the load applying mechanism and the control system; the safety protection system monitors the test data in real time during the test, and stops the test in time and issues an alarm when an abnormal situation occurs.
[0010] The present invention can integrate the fatigue tests of the tailgate support rod and the large spring parts into one device, thereby greatly improving the test efficiency, reducing the test cost and ensuring the product quality. BRIEF DESCRIPTION OF THE DRAWINGS
[0011] Figure 1 It is the overall structure diagram of the present invention, Figure 2 It is a schematic diagram of the spring fatigue test components. Figure 3 It is a schematic diagram of the tailgate support rod fatigue test components.
[0012] Markings in the figure: 1. test platform, 2. spring test mount, 3. strut test stand, 4. control system, 5. drive system; Thick steel plate 101; Locking structure 201, plastic sleeve 202, spring 203, piston rod B 204, guide column 205; Support rod 301, limiting through-hole seat 302, coupling 303, mounting column seat 304, piston rod A305. DETAILED DESCRIPTION
[0013] The present invention will be further described below by means of the accompanying drawings and embodiments.
[0014] See also Figure 1-3 , a vehicle tailgate support rod and spring fatigue test equipment, including a test platform 1, a spring fatigue test component, a tailgate support rod fatigue test component, a control system 4 and a drive system 5, the test platform 1, used to support the tailgate support rod and the large spring parts test frame, adopts a steel frame structure, and the surface uses a whole thick steel plate 101 to bear the weight of the main components to reduce the vibration and deformation generated during the test; the spring fatigue test component includes a spring test mounting seat 2, the spring test mounting seat 2 is used to install the base of the large spring, and the spring 203 is installed in a high-strength plastic sleeve In the tube 202, the spring shape in the stroke is limited by the inner wall of the sleeve and the guide column 205; the end is connected to the thick steel plate 101 of the test platform through the locking structure 201; the tailgate strut fatigue test component includes a strut test frame 3, the tailgate strut mounting seat 3 is used to install the base of the tailgate strut, the ball sleeves at both ends of the strut 301 are respectively installed on the mounting column seat 304 and the coupling 303, and three limit through-hole seats 302 are used to distribute in the axial direction of the strut 301 to prevent the parts from popping out due to the breakage of the strut during the test, causing damage to nearby objects and personnel; All bases are fixedly connected to the test platform 1 by high-strength bolts; The control system 4: uses PLC as the main controller, and cooperates with sensors, actuators and related control programs to realize automated testing. Human-computer interaction is realized through the touch screen, test requirements are set, and the current test status is displayed. The control system 4 has closed-loop control and feedback control functions to ensure the accuracy and stability of the movement. The control system also has data storage and transmission functions to facilitate subsequent processing and analysis of test data. Specifically, the control system 4 uses Siemens PLC (ST20) as the main controller, cooperates with SMC sensor (M9PVL), SMC cylinder (MDBMDB1L80) and AirTac solenoid valve (4V210) as actuators, and then uses self-written control programs to realize automated testing; the notification system realizes human-computer interaction with the Siemens touch screen (700IE3) through the network cable, and can set test requirements according to requirements and display the current test status; The driving system 5 uses a 220V power supply and compressed air as a driving source to provide the required power for the driving mechanism and the load applying mechanism. The piston rod A305 and the piston rod B204 of the cylinder are respectively connected to the tailgate support rod 301 and the front end of the spring 203 to perform reciprocating motion. The experimental conditions are convenient and fast.
[0015] The present invention can realize the function of automation, can automatically test according to preset parameters, and record and process test data in real time. The control system adopts PLC as the main controller, and cooperates with sensors, actuators and related control programs to realize automatic testing; at the same time, the control system also has data storage and transmission functions to facilitate subsequent processing and analysis of test data. Other unexplained parts involved in the present invention are the same as the prior art or are realized by using the prior art.
[0016] The above description is only a specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any changes or substitutions that can be easily thought of by a technician familiar with the technical field within the technical scope disclosed in the patent should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention should be based on the protection scope of the claims.
Claims
1. A vehicle tailgate support rod and spring fatigue testing equipment, characterized in that: The invention comprises a test platform (1), a spring fatigue test component, a tailgate support rod fatigue test component, a control system (4) and a drive system (5). The test platform (1) is used to support a tailgate support rod and a large spring component test frame, and adopts a steel frame structure. A whole thick steel plate (101) is used on the surface to bear the weight of the main components. The spring fatigue test component comprises a spring test mounting seat (2). The spring test mounting seat (2) is a base for mounting a large spring. The spring (203) is installed in a high-strength plastic sleeve (2 02), the spring shape in the stroke is limited by the inner wall of the sleeve and the guide column (205); the end is connected to the thick steel plate (101) of the test platform through a locking structure (201); the tailgate strut fatigue test component includes a strut test frame (3), the tailgate strut mounting seat (3) is a base for mounting the tailgate strut, the ball sleeves at both ends of the strut (301) are respectively mounted on the mounting column seat (304) and the coupling (303), and the strut (301) also passes through three limit through-hole seats (302) in the axial direction.
2. The automobile tailgate support rod and spring fatigue testing equipment according to claim 1, characterized in that: The control system (4) uses Siemens PLC as the main controller, and cooperates with SMC sensors, SMC cylinders and AirTac solenoid valves as actuators, and realizes automatic testing by a self-written control program; the notification system realizes human-computer interaction with the Siemens touch screen through a network cable, sets test requirements according to requirements, and displays the current test status.
3. The automobile tailgate support rod and spring fatigue testing equipment according to claim 1, characterized in that: The driving system (5) uses a 220V power supply and compressed air as a driving source to provide the required power for the driving mechanism and the load applying mechanism. The piston rod A (305) and the piston rod B (204) of the cylinder are respectively connected to the front end of the tailgate support rod (301) and the spring (203) to perform reciprocating motion.
4. The automobile tailgate support rod and spring fatigue testing equipment according to claim 1, characterized in that: All bases are fixedly connected to the test platform (1) by high-strength bolts.