CN111947945A - A slope-adjustable three-bar electric strut test bench - Google Patents

Abstract

The invention provides a three-bar electric strut test bench with adjustable slope, which includes a lower support component, an upper support component, a slope adjustment component, a tailgate simulation component and a manual simulation component. The upper support component is located above the lower support component. The slope adjustment component is assembled between the upper support component and the lower support component. The slope of the upper support component is adjusted by the slope adjustment component. The tailgate simulation component is assembled on the upper support component, and can adjust the slope together with the upper support component. The door simulation component simulates the tailgate of the car. The electric strut to be tested is assembled between the tailgate simulation component and the upper support component. The tailgate simulation component is supported by the electric stay to be tested. The manual simulation component is assembled between the upper support component and the tailgate. Between the door simulation components, the manual simulation component operates the tailgate simulation component, simulates the manual operation process of the car tailgate, and tests the electric strut to be tested, saving labor costs and improving experimental efficiency.

Description

A slope-adjustable three-bar electric strut test bench

technical field

The invention relates to auto parts production equipment, in particular to a three-bar electric strut test bench with adjustable gradient.

Background technique

The electric strut is the force actuator of the electric tailgate system. In order to verify the reliability of the electric strut under the actual vehicle assembly condition, the electric strut is currently installed on the test bench to simulate the actual vehicle tailgate operation. One of the experiments is to simulate the manual opening and closing of the tailgate for a certain number of times to verify the reliability of the strut. Since this test simulates the condition of manually opening and closing the tailgate, the electric strut is not energized and can only be controlled by the experiment. The personnel cycle to open/close the test bench to simulate the tailgate, which is inefficient, and the experiment also needs to be carried out under the conditions of high temperature +85 °C and low temperature -35 °C, especially in the high temperature experiment, the experiment requires the operator to wear The protective clothing entering the test environment is very unfriendly to the testers, the experiment is difficult, and it restricts the standard requirements for the number of manual opening and closing tests, and the product cannot be fully verified. In addition, the test bench not only simulates the running performance of the tailgate under horizontal road conditions, but also simulates the running performance of the vehicle parked under different slopes. At this time, the bench needs to be able to adjust the angle forward and backward to simulate the actual working conditions. Therefore, it is necessary to optimize the structure of this test bench to overcome the above shortcomings.

SUMMARY OF THE INVENTION

The purpose of the present invention is to provide a three-bar electric strut test bench with adjustable gradient.

The technical scheme adopted by the present invention for solving its technical problem is:

A slope-adjustable three-bar electric strut test bench, comprising:

lower support assembly;

an upper support assembly located above the lower support assembly;

a slope adjustment component, the slope adjustment component is assembled between the upper support component and the lower support component, and the slope of the upper support component is adjusted by the slope adjustment component;

Tailgate simulation component, the tailgate simulation component is assembled on the upper support component, and the slope can be adjusted together with the upper support component. Between the components, the tailgate simulation component is supported by the electric strut to be tested;

The manual simulation component is assembled between the upper support component and the tailgate simulation component, and the tailgate simulation component is operated by the manual simulation component to simulate the manual operation process of the automobile tailgate. test.

Specifically, the manual simulation components include:

A telescopic strut, one end of the telescopic strut is connected with the upper support component, and the other end is connected with the tailgate simulation component, which is driven by the telescopic component to open or close the tailgate simulation component.

Tailgate simulation components include:

Simulate a swing arm, the assembly end of the simulated swing arm is installed on the upper support assembly through a rotating structure, one end of the electric strut to be tested is connected with the upper support assembly, and the other end is connected with the simulated swing arm to simulate the installation state of the car tailgate;

The counterweight hanging rod is assembled on the simulated swing arm through the adjustment structure. The counterweight hanging rod is provided with a counterweight block. The weight of the counterweight block simulates the weight of the tailgate of the car. The position of the counterweight simulates the center of gravity of the car tailgate;

The door lock base is assembled between the simulated swing arm and the upper support assembly, and the tailgate lock body to be tested is assembled on the door lock base to simulate the opening and closing state of the tailgate lock body, and the assembly is manually simulated. Test the tailgate lock body while operating the tailgate simulation assembly.

Incline adjustment components include:

A hinged seat, one end of the hinged seat is connected with the upper support assembly, and the other end is connected with the lower support assembly, and the upper support assembly can be deflected on the lower support assembly through the hinged seat to adjust the slope of the upper support assembly;

Positioning screws, the positioning screws are provided with a pair and are arranged on both sides of the hinge base. The bottom end of each positioning screw is fixed on the lower support component, and the upper support component is provided with a positioning hole. Extend and lock with lock nut. The slope of the upper support assembly is fixed by the positioning screw and the lock nut.

The upper support assembly includes:

the upper seat plate, the positioning hole is opened in the upper seat plate;

The upper side plate is located above the upper seat plate and is assembled on the upper seat plate through the adapter frame. One end of the telescopic strut is connected to the upper side plate, and the other end is connected to the simulated swing arm to simulate the assembly of the swing arm The end is mounted on the upper side panel.

The lower support assembly includes:

The lower seat plate is provided with a set of support feet at the bottom, the bottom end of the positioning screw is fixed on the lower seat plate, the lower seat plate is located under the upper seat plate, the top of the hinged seat body is fixed on the bottom surface of the upper seat plate, and the bottom The end is fixed to the top surface of the lower seat plate.

The simulated swing arm is provided with a set of mounting holes, and the mounting holes are arranged in sequence along the length direction of the simulated swing arm.

The advantages of the present invention are:

The test bench is provided with a telescopic strut between the simulated swing arm and the upper side plate, which can simulate the operation process of manually opening or closing the tailgate of a car without manual operation, which can save labor costs and improve experimental efficiency. A set of mounting holes are set on the upper part, and the counterweight hanging rod is assembled on the simulated swing arm through the mounting holes. A hinged seat is set between them to simulate the slope position of the tailgate of the car, and a positioning screw and a locking nut are used for positioning. The operation is simple and fast, which is conducive to improving the test efficiency.

Description of drawings

Fig. 1 is the front structure schematic diagram of the test bench proposed by the present invention;

Fig. 2 is the side structure schematic diagram of this test bench;

Figure 3 is a schematic diagram of the structure of the simulated swing arm.

Detailed ways

In order to make the technical means, creation features, achievement goals and effects realized by the present invention easy to understand, the present invention will be further described below with reference to the drawings and specific embodiments.

As shown in FIGS. 1 to 3 , the slope-adjustable three-bar electric strut test bench proposed by the present invention includes a lower support component, an upper support component, a slope adjustment component, a tailgate simulation component and a manual simulation component. The upper support The component is located above the lower support component. The slope adjustment component is assembled between the upper support component and the lower support component. The slope of the upper support component is adjusted by the slope adjustment component. The tailgate simulation component is assembled on the upper support component and can be adjusted with the upper support component The components adjust the slope together. The tailgate simulation component simulates the tailgate of the car. The electric strut to be tested is assembled between the tailgate simulation component and the upper support component. The tailgate simulation component is supported by the electric strut to be tested, and the component is manually simulated. It is assembled between the upper support component and the tailgate simulation component, and the manual simulation component operates the tailgate simulation component to simulate the manual operation process of the automobile tailgate, and test the electric strut to be tested. In this embodiment, the manual simulation assembly includes a telescopic strut 1, one end of the telescopic strut is connected to the upper support assembly, and the other end is connected to the tailgate simulation assembly, which is driven by the telescopic assembly to open or close the tailgate simulation assembly. When performing the normal fatigue endurance test, the expansion and contraction do not need to be assembled. Only when the manual opening and closing fatigue endurance test is performed, the telescopic strut needs to be installed, and the external program controls the expansion and contraction of the telescopic strut, so as to realize the opening and closing of the tailgate. to simulate the manual operation process. The tailgate simulation assembly includes a simulation swing arm 2, a counterweight hanging rod 4 and a door lock base 6. The assembly end of the simulation swing arm is installed on the upper support assembly through a rotating structure, and one end of the electric support rod 3 to be tested is connected to the upper support assembly. , the other end is connected with the simulated swing arm to simulate the installation state of the tailgate of the car, the counterweight hanging rod is assembled on the simulated swing arm through the adjustment structure, and the counterweight hanging rod is provided with a counterweight block 5, through the weight of the counterweight block The weight of the tailgate is simulated, and the center of gravity of the tailgate is simulated by the position of the counterweight hanging rod and the counterweight block. The door lock seat is assembled between the simulated swing arm and the upper support assembly, and the tailgate lock body to be tested is assembled on the door On the lock seat body, in this embodiment, the fixed part of the door lock seat body is located on the upper support assembly, and its movable part is located on the simulated swing arm to simulate the opening and closing state of the tailgate lock body. Test the tailgate lock body while simulating the operation of the components. The slope adjustment assembly includes a hinged seat 7 and a positioning screw 8. One end of the hinged seat is connected to the upper support assembly, and the other end is connected to the lower support assembly. The upper support assembly can be deflected on the lower support assembly through the hinged seat to adjust the upper support The slope of the assembly; a pair of positioning screws are arranged on both sides of the hinge base, the bottom end of each positioning screw is fixed on the lower support assembly, the upper support assembly is provided with a positioning hole 9, and the top of the positioning screw is from the positioning hole. It extends from the middle and is locked with a lock nut 10, and the slope of the upper support assembly is fixed by the positioning screw and the lock nut. The upper support assembly includes an upper seat plate 11 and an upper side plate 12, and a positioning hole is opened in the upper seat plate. In this embodiment, the positioning hole is a waist-shaped long hole, so that the upper seat plate can swing to a certain extent when adjusting the slope. Space, the fixed part of the door lock seat body is assembled on the upper seat plate, the upper side plate is located above the upper seat plate, and is assembled on the upper seat plate through the adapter frame 13, one end of the telescopic strut is connected with the upper side plate, and the other One end is connected with the simulated swing arm, and the assembly end of the simulated swing arm is mounted on the upper side plate. The lower support assembly includes a lower seat plate 14, the bottom of the lower seat plate is provided with a set of support feet, the bottom end of the positioning screw is fixed on the lower seat plate, the lower seat plate is located under the upper seat plate, and the top of the hinged seat body is fixed on the upper seat plate. The bottom surface, the bottom end of which is fixed on the top surface of the lower seat plate. When it is necessary to adjust different test slopes, first place the inclinometer on the upper seat plate, loosen the lock nut on one of the positioning screws, and screw down the lock nut on the other positioning screw to force the upper seat plate Inclination, in conjunction with the rotation constraint of the hinged seat body, the adjustment of different slopes can be realized, and a buffer washer 15 can also be set between the lock nut and the upper seat plate to reduce the impact damage and movement caused by the durable movement of the tailgate. noise and prolong the service life. A set of mounting holes 16 are opened in the simulated swing arm, and each mounting hole is arranged in sequence along the length direction of the simulated swing arm. Before adjustment, the position of the counterweight hanging rod and the weight of the counterweight block are continuously adjusted in the simulated environment until the accurate center of gravity position is obtained, and then the actual adjustment is carried out. The test bench is provided with a telescopic strut between the simulated swing arm and the upper side plate, which can simulate the operation process of manually opening or closing the tailgate of a car without manual operation, which can save labor costs and improve experimental efficiency. A set of mounting holes are set on the upper part, and the counterweight hanging rod is assembled on the simulated swing arm through the mounting holes. A hinged seat is set between them to simulate the slope position of the tailgate of the car, and a positioning screw and a locking nut are used for positioning. The operation is simple and fast, which is conducive to improving the test efficiency.

The above embodiments are only to illustrate the technical concept and characteristics of the present invention, and the purpose is to allow those skilled in the art to understand the content of the present invention and implement it, and cannot limit the protection scope of the present invention by this. Equivalent changes or modifications made should be covered within the protection scope of the present invention.

Claims (7)

1. A three-bar type electric strut test bench with adjustable gradient, is characterized in that, comprises: lower support assembly; an upper support assembly located above the lower support assembly; a slope adjustment assembly assembled between the upper support assembly and the lower support assembly; A tailgate simulation component, the tailgate simulation component is assembled on the upper support component, and the electric strut to be tested is assembled between the tailgate simulation component and the upper support component; The manual simulation assembly is assembled between the upper support assembly and the tailgate simulation assembly. 2. The three-bar type electric strut test bench with adjustable gradient according to claim 1, wherein the manual simulation assembly comprises: A telescopic strut, one end of the telescopic strut is connected with the upper support assembly, and the other end is connected with the tailgate simulation assembly. 3. The three-bar type electric strut test bench with adjustable gradient according to claim 1, wherein the tailgate simulation assembly comprises: A simulated swing arm, the assembly end of the simulated swing arm is installed on the upper support assembly through a rotating structure, one end of the electric strut to be tested is connected to the upper support assembly, and the other end is connected to the simulated swing arm; The counterweight hanging rod, the counterweight hanging rod is assembled on the simulated swing arm through the adjustment structure, and the counterweight hanging rod is provided with a counterweight block; The door lock seat body is assembled between the simulated swing arm and the upper support assembly, and the tailgate lock body to be tested is assembled on the door lock seat body. 4. The three-bar type electric strut test bench with adjustable gradient according to claim 1, wherein the gradient adjustment assembly comprises: a hinged seat, one end of the hinged seat is connected with the upper support assembly, and the other end is connected with the lower support assembly; Positioning screws, the positioning screws are provided with a pair and are arranged on both sides of the hinge base. The bottom end of each positioning screw is fixed on the lower support component, and the upper support component is provided with a positioning hole. Extend and lock with lock nut. 5. The three-bar type electric strut test bench with adjustable gradient according to claim 1 or 2 or 3 or 4, wherein the upper support assembly comprises: the upper seat plate, the positioning hole is opened in the upper seat plate; The upper side plate is located above the upper seat plate and is assembled on the upper seat plate through the adapter frame. One end of the telescopic strut is connected to the upper side plate, and the other end is connected to the simulated swing arm to simulate the assembly of the swing arm The end is mounted on the upper side panel. 6. The three-bar type electric strut test bench with adjustable gradient according to claim 5, wherein the lower support assembly comprises: The lower seat plate is provided with a set of support feet at the bottom, the bottom end of the positioning screw is fixed on the lower seat plate, the lower seat plate is located under the upper seat plate, the top of the hinged seat body is fixed on the bottom surface of the upper seat plate, and the bottom The end is fixed to the top surface of the lower seat plate. 7. a kind of slope-adjustable three-bar type electric strut test bench according to claim 3, is characterized in that: A set of mounting holes is opened in the simulated swing arm, each mounting hole is arranged in sequence along the length direction of the simulated swing arm, and the counterweight hanging rod is assembled on the simulated swing arm through the mounting holes.

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