Vehicle plate body rigidity testing device

Abstract

A vehicle plate rigidity testing device comprises a frame body, a lifting body and a moving body and is characterized in that a bottom plate is arranged at the lower end of the frame body, a main beam is vertically arranged on the upper end face of the bottom plate, a rack is arranged on the front end face of the main beam, the lifting body is movably arranged outside the main beam, and a gear is rotationally arranged in the middle of the front portion of the moving body and meshed with the rack. According to the scheme, the dynamometer is combined with the force sensor, the propelling detection of the equipment and the propelling force are limited according to a set numerical value, the detection procedure can be automatically stopped when the propelling force is larger than the rated force, and the detection equipment and a detected part cannot be damaged by exceeding the rated pressure degree.

Description

Technical Field

[0001] The utility model relates to testing equipment for automobile production, in particular to a vehicle plate rigidity testing device. Background Art

[0002] Stiffness is one of the most commonly used indicators for evaluating the mechanical properties of materials. The essence of stiffness is the ability of a material to resist the intrusion of another harder material. For the sample being tested, stiffness represents the comprehensive performance of multiple physical quantities such as elasticity, plasticity, strength, toughness and wear resistance under a certain pressure head and test force. In the process of producing automotive parts, it is necessary to test their stiffness, especially for the front and rear fenders of the car, the deformation of the maximum curvature needs to be tested. However, most of the existing equipment for testing is air pressure or punch rod testing, which is very easy to cause damage to the equipment or the tested parts. Utility Model Content

[0003] The utility model provides a vehicle plate stiffness testing device, which is used to solve the technical problems in the above-mentioned background technology.

[0004] The vehicle panel stiffness testing device comprises a frame, a lifting body and a moving body, and is characterized in that a bottom plate is provided at the lower end of the frame, a main beam is vertically provided at the upper end of the bottom plate, a rack is provided at the front end surface of the main beam, the lifting body is movably arranged outside the main beam, a gear is rotatably provided at the front middle part of the moving body, the gear is meshed with the rack, a first driving motor driving gear is provided at the front side end of the lifting body, the rear part of the moving body is a transverse box, a lead screw is rotatably provided in the transverse box, the front part of the moving body is a moving plate, a sliding body is provided at the lower end of the rear side of the moving plate, the middle part of the sliding body is a screw barrel, the screw barrel meshing sleeve is arranged outside the screw, a dynamometer is provided at the front upper end of the moving plate, a fixing rod is provided at the side end of the moving plate, and a force sensor is provided at the front end of the fixing rod.

[0005] Furthermore, at least two auxiliary beams are provided inside the transverse box, and the auxiliary beams are arranged on both sides of the lead screw.

[0006] Furthermore, a second drive motor is provided at the outer end of the transverse box, and the second drive motor drives the connecting screw.

[0007] Furthermore, the sliding body is provided with at least two sets of sliding cylinders, the sliding cylinders are arranged on both sides of the screw cylinder, and the sliding cylinder sliding sleeves are arranged outside the auxiliary beam.

[0008] Furthermore, the force sensor is electrically connected to the dynamometer, and the dynamometer is electrically connected to the second drive motor.

[0009] Beneficial effect: This solution adopts a combination of a dynamometer and a force sensor. Through the set numerical values, the propulsion detection and propulsion force of the equipment are limited. When the force is greater than the rated force, the detection process will be automatically stopped, and no damage exceeding the rated pressure will be caused to the detection equipment and the tested parts. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 This is the overall structure diagram of the utility model;

[0011] Figure 2 This is the structure diagram of the frame of the utility model;

[0012] Figure 3 This is a horizontal box structure diagram of the utility model;

[0013] Figure 4 This is the structural diagram of the movable plate of the utility model;

[0014] Figure 5 This is the structure diagram of the movable plate of the utility model

[0015] In the figure: frame 1, base plate 101, main beam 102, rack 103, lifting body 2, moving body 3, gear 201, first drive motor 202, transverse box 301, screw 3011, auxiliary beam 3012, second drive motor 3013, moving plate 302, fixed rod 3021, sliding body 303, screw barrel 3031, slide barrel 3032, dynamometer 304, force sensor 305. DETAILED DESCRIPTION

[0016] The implementation process of the utility model is described in detail below in conjunction with the accompanying drawings. The described embodiments are part of the embodiments of the utility model, but not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0017] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly stipulated and limited, the terms "setting", "installation", "connection" and "connection" should be understood in a broad sense. For example, it can be a fixed connection, a bolt connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or it can be the internal connection of two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0018] like Figure 1-5The vehicle panel stiffness testing device shown in the figure comprises a frame 1, a lifting body 2, and a moving body 3, wherein the frame 1 is provided with a bottom plate 101 at the lower end, a main beam 102 is vertically provided at the upper end of the bottom plate 101, a rack 103 is provided at the front end of the main beam 102, the lifting body 2 is movably arranged outside the main beam 102, a gear 201 is rotatably arranged at the middle of the front part of the moving body 3, the gear 201 is meshed with the rack 103, and a first driving motor 202 is provided at the front side end of the lifting body 2 to drive the gear 201. The rear part of the moving body 3 is a transverse box 301, in which a lead screw 3011 is rotatably provided, the front part of the moving body 3 is a moving plate 302, a sliding body 303 is provided at the lower end of the rear side of the moving plate 302, the middle part of the sliding body 303 is a screw barrel 3031, and the screw barrel 3031 is meshingly sleeved on the outside of the lead screw 3011, a dynamometer 304 is provided at the front upper end of the moving plate 302, a fixing rod 3021 is provided at the side end of the moving plate 302, and a force sensor 305 is provided at the front end of the fixing rod 3021.

[0019] Preferably, the vehicle panel stiffness testing device is characterized in that at least two auxiliary beams 3012 are provided inside the transverse box 301 , and the auxiliary beams 3012 are arranged on both sides of the lead screw 3011 .

[0020] Preferably, the vehicle panel stiffness testing device is characterized in that a second drive motor 3013 is provided at the outer end of the transverse box 301 , and the second drive motor 3013 drives the connecting screw 3011 .

[0021] Preferably, the vehicle panel stiffness testing device is characterized in that the sliding body 303 is provided with at least two sets of slide cylinders 3032 , the slide cylinders 3032 are arranged on both sides of the screw cylinder 3031 , and the slide cylinders 3032 are slidably sleeved on the outside of the auxiliary beam 3012 .

[0022] Preferably, the vehicle panel stiffness testing device is characterized in that the force sensor 305 is electrically connected to the dynamometer 304 , and the dynamometer 304 is electrically connected to the second drive motor 3013 .

[0023] Before work, start the first drive motor 202, the lifting body 2 is positioned in the frame frame, and the lifting body 2 is adjusted to the required height through the gear 201 and the rack 103 outside the main beam 102 of the frame body 1. When the height of the lifting body 2 reaches the corresponding height, the first drive motor 202 is manually controlled to stop working, and the dynamometer 304 is started and then the maximum pressure range is input into the dynamometer 304. In this scheme, the dynamometer 304 is electrically connected to the second drive motor 3013 through the control system and the motor controller. The second drive motor 3013 is started and the sliding body 303 is pushed forward by rotating the lead screw 3011. At this time, the lead screw 3011 rotates with the screw barrel 3031 of the sliding body 303. Dynamic engagement, the auxiliary beam 3012 plays the role of balancing the moving sliding body 303, the moving plate 302 moves forward while the sliding body 303 moves, the fixed rod 3021 moves forward at the same time, the force sensor 305 at the front end of the fixed rod 3021 contacts the end face of the baffle to be measured, and the second drive motor 3013 continues to advance. When the dynamometer 304 receives the contact pressure of the force sensor 305 and the pressure reaches the maximum force value, the dynamometer 304 controls the second drive motor 3013 to stop working and control the second drive motor 3013 to rotate through the motor controller and the control system. When the curvature of the plate reaches the maximum critical value, the dynamometer 304 will reach the maximum range value and stop.

[0024] The above-described implementation modes of the present invention do not constitute a limitation on the protection scope of the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention shall be included in the protection scope of the claims of the present invention.

Claims

1. A vehicle panel stiffness testing device, comprising a frame (1), a lifting body (2), and a moving body (3), characterized in that The frame (1) has a bottom plate (101) at the lower end, a main beam (102) is vertically arranged on the upper end of the bottom plate (101), a rack (103) is arranged on the front end of the main beam (102), the lifting body (2) is movably arranged outside the main beam (102), a gear (201) is rotatably arranged in the middle of the front part of the moving body (3), the gear (201) is meshed with the rack (103), a first driving motor (202) is arranged at the side end of the front part of the lifting body (2) to drive the gear (201), and the rear part of the moving body (3) is a transverse box (301), A lead screw (3011) is rotatably arranged in the transverse box (301), the front part of the moving body (3) is a moving plate (302), a sliding body (303) is arranged at the lower end of the rear side of the moving plate (302), the middle part of the sliding body (303) is a screw barrel (3031), the screw barrel (3031) is meshingly sleeved outside the lead screw (3011), a dynamometer (304) is arranged at the upper end of the front part of the moving plate (302), a fixing rod (3021) is arranged at the side end of the moving plate (302), and a force sensor (305) is arranged at the front end of the fixing rod (3021).

2. The vehicle panel stiffness testing device according to claim 1, characterized in that At least two auxiliary beams (3012) are arranged inside the transverse box (301), and the auxiliary beams (3012) are arranged on both sides of the lead screw (3011).

3. The vehicle panel stiffness testing device according to claim 1, characterized in that A second drive motor (3013) is provided at the outer end of the transverse box (301), and the second drive motor (3013) drives the connecting lead screw (3011).

4. The vehicle panel stiffness testing device according to claim 1, characterized in that The sliding body (303) is provided with at least two groups of slide cylinders (3032), the slide cylinders (3032) are arranged on both sides of the screw cylinder (3031), and the slide cylinders (3032) are slidably sleeved outside the auxiliary beam (3012).

5. The vehicle panel stiffness testing device according to claim 1, characterized in that The force sensor (305) is electrically connected to the dynamometer (304), and the dynamometer (304) is electrically connected to the second drive motor (3013).

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