Automobile convertible rack durability test device and method

Abstract

The present invention provides a durability test device and method for a convertible rack of an automobile. The convertible rack of an automobile durability test device comprises a base frame, a controller, a position detection assembly and a drive assembly. The base frame comprises a bottom frame, a first column and a second column, the first column and the second column are symmetrically connected to the bottom frame along the symmetry plane of the convertible rack, and two bases of the convertible rack are respectively connected to the first column and the second column; the position detection assembly comprises a first position sensor and a second position sensor symmetrically arranged on both sides of the convertible rack; the output end of the drive assembly is connected to the base; the convertible rack is provided with a first detection point and a second detection point symmetrically arranged on the left and right sides, the first position sensor is arranged on the motion trajectory of the first detection point, and the second position sensor is arranged on the motion trajectory of the second detection point. The convertible rack of an automobile durability test device detects whether the first detection point and the second detection point are synchronized through the symmetrically arranged first position sensor and the second position sensor.

Description

Technical Field

[0001] The invention relates to the technical field of automobile durability testing, and in particular to a device and method for testing the durability of an automobile convertible rack. Background Art

[0002] The convertible rack of a convertible car has two states: open and closed. As the number of times it is opened or closed increases, the convertible rack is at risk of deformation. Therefore, during actual vehicle testing, the convertible rack needs to be subjected to a durability test.

[0003] At present, there is no durability performance test and detection device for convertible racks in the field of automobile test technology. The durability performance test and detection of automobile convertible rack mechanisms are all completed through manual operation. Manual operation is labor-intensive and has low test and detection efficiency. It can only be operated at room temperature and cannot be operated and tested in high and low temperature environments for a long time. Summary of the invention

[0004] The object of the present invention is to provide a durability test device for automobile convertible racks, which detects whether a first detection point and a second detection point are synchronized by symmetrically arranged first position sensors and second position sensors, thereby detecting whether the convertible rack is deformed within a preset number of times in the durability test.

[0005] The invention also provides a durability test method for an automobile convertible frame.

[0006] To achieve the purpose of the present invention, the present invention adopts the following technical solutions:

[0007] According to one aspect of the present invention, a durability test device for a convertible rack of an automobile is provided. The convertible rack of an automobile durability test device comprises a base frame, a controller, a position detection assembly and a drive assembly. The base frame comprises a bottom frame, a first column and a second column, the bottom frame is arranged around the circumference of the convertible rack, the first column and the second column are symmetrically connected to the bottom frame along the symmetry plane of the convertible rack, and the two bases of the convertible rack are respectively connected to the first column and the second column; the position detection assembly comprises a first position sensor and a second position sensor symmetrically arranged on both sides of the convertible rack, the first position sensor and the second position sensor are electrically connected to the controller; the drive assembly is electrically connected to the controller and its output end is connected to the base; wherein, the convertible rack is provided with a first detection point and a second detection point symmetrically arranged on the left and right sides, the first position sensor is arranged on the motion trajectory of the first detection point, and the second position sensor is arranged on the motion trajectory of the second detection point, so as to detect whether the first detection point and the second detection point are synchronized.

[0008] According to one embodiment of the present invention, the base frame further includes a first vertical rod and a second vertical rod, the first vertical rod and the second vertical rod are symmetrically arranged along the symmetry plane of the convertible frame, the first position sensor is connected to the first column through the first vertical rod, and the second position sensor is connected to the second column through the second vertical rod.

[0009] According to one embodiment of the present invention, the base frame further includes a first cross bar and a second cross bar, the first cross bar and the second cross bar are symmetrically arranged along the symmetry plane of the convertible frame, the first position sensor is connected to the first vertical bar through the first cross bar, and the second position sensor is connected to the second vertical bar through the second cross bar.

[0010] According to one embodiment of the present invention, the position detection component also includes a third position sensor and a fourth position sensor respectively electrically connected to the controller, the third position sensor is arranged on the motion trajectory of the first detection point and does not overlap with the first position sensor, and the fourth position sensor is arranged on the motion trajectory of the second detection point and does not overlap with the second position sensor.

[0011] According to one embodiment of the present invention, the base frame further includes a third cross bar and a fourth cross bar, and the third cross bar and the fourth cross bar are symmetrically arranged along the symmetry plane of the convertible frame, the third position sensor is connected to the first vertical bar through the third cross bar, and the fourth position sensor is connected to the second vertical bar through the fourth cross bar.

[0012] According to one embodiment of the present invention, the position detection component also includes a fifth position sensor and a sixth position sensor electrically connected to the controller respectively, the fifth position sensor is arranged on the motion trajectory of the first detection point, and the positions of the fifth position sensor, the third position sensor and the first position sensor do not overlap, and the sixth position sensor is arranged on the motion trajectory of the second detection point, and the positions of the sixth position sensor, the fourth position sensor and the second position sensor do not overlap.

[0013] According to one embodiment of the present invention, the base frame further includes a fifth cross bar and a sixth cross bar, and the fifth cross bar and the sixth cross bar are symmetrically arranged along the symmetry plane of the convertible frame, the fifth position sensor is connected to the first vertical bar through the fifth cross bar, and the sixth position sensor is connected to the second vertical bar through the sixth cross bar.

[0014] According to one embodiment of the present invention, the position detection component further includes a seventh position sensor electrically connected to the controller, and the seventh position sensor is disposed at the position when the convertible shelf is fully opened to transmit a signal indicating that the convertible shelf is fully opened to the controller.

[0015] According to one embodiment of the present invention, the position detection component further includes an eighth position sensor electrically connected to the controller, and the eighth position sensor is disposed at the position when the convertible shelf is fully closed to transmit a signal that the convertible shelf is fully closed to the controller.

[0016] According to another aspect of the present invention, a method for testing the durability of a convertible rack of an automobile is provided. The method comprises: presetting a time length T in a controller 设 =0.1s; the controller controls the driving assembly to drive the convertible frame to reciprocate; the first position sensor detects the first detection point first, or the second position sensor detects the second detection point first, which is recorded as t1 by the controller; the second position sensor detects the second detection point later, or the first position sensor detects the first detection point later, which is recorded as t2 by the controller; the controller calculates T 实 = t2-t1, and compare T 实 With T 设 ; If T 实 >T 设 When the controller controls the drive component to stop.

[0017] An embodiment of the present invention has the following advantages or beneficial effects:

[0018] The automobile convertible rack durability test device of the present invention drives the convertible rack to open and close repeatedly under the action of the driving component. A symmetrical first detection point is set on the left side of the convertible rack, and a second detection point is set on the right side of the convertible rack. The first detection point is symmetrical to the second detection point. The motion trajectory of the first detection point and the motion trajectory of the second detection point are respectively provided with a plurality of one-to-one corresponding position sensors, which can detect whether the left and right sides of the convertible rack are synchronized, and the running speed and operation frequency of the entire test can be adjusted and controlled by presetting the stroke duration in the controller, and it is non-destructive to the test sample. The opening and closing position of the convertible rack can be monitored by setting the seventh position sensor and the eighth position sensor, and the distance between the first column and the second column can be adjusted so that the device can be applied to various convertible car models. There is no human intervention in the entire test process, which can reduce labor intensity, and the detection test can be carried out in high and low temperature environments. The structure is simple, maintenance is convenient, and operation is low-cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The above and other features and advantages of the present invention will become more apparent by describing in detail exemplary embodiments thereof with reference to the attached drawings.

[0020] Figure 1 The present invention is a perspective view of a vehicle convertible rack durability testing device according to an exemplary embodiment.

[0021] Figure 2 The present invention is a flow chart showing a method for testing the durability of a convertible rack of an automobile according to an exemplary embodiment.

[0022] The reference numerals are described as follows:

[0023] 1. Base frame; 1-1. Bottom frame; 1-2. First column; 1-3. Second column; 1-4. First vertical bar; 1-5. Second vertical bar; 1-6. First cross bar; 1-7. Second cross bar; 1-8. Third cross bar; 1-9. Fourth cross bar; 1-10. Fifth cross bar; 1-11. Sixth cross bar; 1-12. First bracket; 1-13. Second bracket; 2-1. First position sensor; 2-2. Second position sensor; 2-3. Third position sensor; 2-4. Fourth position sensor; 2-5. Fifth position sensor; 2-6. Sixth position sensor; 2-7. Seventh position sensor; 2-8. Eighth position sensor; 3-1. Oil pump; 3-2. First oil cylinder; 3-3. Second oil cylinder; 4. Open rack; 4-1. First detection point; 4-2. Second detection point. DETAILED DESCRIPTION

[0024] Example embodiments will now be described more fully with reference to the accompanying drawings. However, example embodiments can be implemented in a variety of forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided so that the present invention will be comprehensive and complete and fully convey the concepts of the example embodiments to those skilled in the art. The same reference numerals in the figures represent the same or similar structures, and thus their detailed description will be omitted.

[0025] The terms "a", "an", "the", and "said" are used to indicate the presence of one or more elements / components / etc.; the terms "comprising" and "having" are used to express an open-ended inclusive meaning and mean that additional elements / components / etc. may be present in addition to the listed elements / components / etc.

[0026] like Figure 1 As shown, Figure 1 A stereoscopic diagram of a vehicle convertible rack durability test device provided by the present invention is shown.

[0027] The automobile convertible rack durability test device according to the embodiment of the present invention comprises a base frame 1, a controller, a position detection component and a driving component. The base frame 1 includes a bottom frame 1-1, a first column 1-2 and a second column 1-3. The bottom frame 1-1 is arranged around the circumference of the convertible frame 4. The first column 1-2 and the second column 1-3 are symmetrically connected to the bottom frame 1-1 along the symmetry plane of the convertible frame 4. The two bases of the convertible frame 4 are respectively connected to the first column 1-2 and the second column 1-3; the position detection component includes a first position sensor 2-1 and a second position sensor 2-2 symmetrically arranged on both sides of the convertible frame 4, and the first position sensor 2-1 and the second position sensor 2-2 are electrically connected to the controller; the driving component is electrically connected to the controller and its output end is connected to the base; wherein, the convertible frame 4 is provided with a first detection point 4-1 and a second detection point 4-2 which are symmetrical on the left and right, the first position sensor 2-1 is arranged on the motion trajectory of the first detection point 4-1, and the second position sensor 2-2 is arranged on the motion trajectory of the second detection point 4-2, so as to detect whether the first detection point 4-1 and the second detection point 4-2 are synchronized.

[0028] like Figure 1 As shown, the convertible rack 4 is installed on the top of the car and moves along the front-to-back direction of the car during use, wherein the forward movement is the closed state and the backward movement is the open state. A first detection point 4-1 and a second detection point 4-2 are respectively arranged on the left and right sides of the convertible rack 4. The first detection point 4-1 and the second detection point 4-2 are arranged symmetrically on the left and right sides of the car along the central plane of the convertible rack 4. When the convertible rack 4 is closed forward or opened backward, the first detection point 4-1 and the second detection point 4-2 usually move synchronously, and the movement trajectory of the first detection point 4-1 and the movement trajectory of the second detection point 4-2 are the same. The first position sensor 2-1 is arranged on the movement trajectory of the first detection point 4-1, and the second position sensor 2-2 is arranged on the movement trajectory of the first detection point 4-1. The device 2-2 is arranged on the motion trajectory of the second detection point 4-2, and the first position sensor 2-1 and the second position sensor 2-2 are also arranged symmetrically along the central plane of the convertible rack 4. Preferably, the automobile convertible rack durability test device also includes a controller, and the first position sensor 2-1 and the second position sensor 2-2 are electrically connected to the controller respectively. When the driving component drives the convertible rack 4 to open or close normally, the first position sensor 2-1 detects the first detection point 4-1 and transmits a signal to the controller, and the second position sensor 2-2 also detects the second detection point 4-2 at the same time and transmits a signal to the controller. Otherwise, it can be judged that the convertible rack 4 is deformed, and the controller turns off the oil pump 3-1 of the driving component to stop the test.

[0029] Preferably, the driving assembly includes an oil pump 3-1, a first oil cylinder 3-2 and a second oil cylinder 3-3, the rod chamber and the rodless chamber of the first oil cylinder 3-2 are both connected to the oil pump 3-1, the rod chamber and the rodless chamber of the second oil cylinder 3-3 are both connected to the oil pump 3-1, the cylinder rod of the first oil cylinder 3-2 is connected to the left base of the convertible rack 4, and the cylinder rod of the second oil cylinder 3-3 is connected to the right base of the convertible rack 4, so that the convertible rack 4 is synchronously driven to open or close through the first oil cylinder 3-2 and the second oil cylinder 3-3, and the oil pump 3-1 is also connected to a pressure regulating valve and a flow valve to adjust the operating speed of the convertible rack 4, so that the initial operation of the convertible rack 4 The opening or closing stroke duration is 15 seconds.

[0030] In a preferred embodiment of the present invention, the base frame 1 also includes a first vertical rod 1-4 and a second vertical rod 1-5, and the first vertical rod 1-4 and the second vertical rod 1-5 are symmetrically arranged along the symmetry plane of the convertible frame 4, and the first position sensor 2-1 is connected to the first column 1-2 through the first vertical rod 1-4, and the second position sensor 2-2 is connected to the second column 1-3 through the second vertical rod 1-5.

[0031] like Figure 1 As shown, the first vertical rod 1-4 is arranged on the left side of the convertible rack 4, and the lower end of the first vertical rod 1-4 is fixed to the first column 1-2, and the first position sensor 2-1 is arranged on the upper part of the first vertical rod 1-4. When the left base of the convertible rack 4 is connected to the first column 1-2, the sensing end of the first position sensor 2-1 can be oriented toward the position of the motion trajectory of the first detection point 4-1. Similarly, the second vertical rod 1-5 is arranged on the right side of the convertible rack 4, and the lower end of the second vertical rod 1-5 is fixed to the second column 1-3. The second position sensor 2-2 is arranged on the upper part of the second vertical rod 1-5. When the right base of the convertible rack 4 is connected to the second column 1-3, the sensing end of the second position sensor 2-2 can be oriented toward the position of the motion trajectory of the second detection point 4-2.

[0032] In a preferred embodiment of the present invention, the base frame 1 also includes a first cross bar 1-6 and a second cross bar 1-7, and the first cross bar 1-6 and the second cross bar 1-7 are symmetrically arranged along the symmetry plane of the convertible frame 4. The first position sensor 2-1 is connected to the first vertical bar 1-4 through the first cross bar 1-6, and the second position sensor 2-2 is connected to the second vertical bar 1-5 through the second cross bar 1-7.

[0033] like Figure 1As shown, the rear end of the first crossbar 1-6 is fixed to the first vertical bar 1-4, and the first crossbar 1-6 extends forward perpendicularly to the first vertical bar 1-4. When the first position sensor 2-1 is set on the first crossbar 1-6, it is closer to the starting position of the motion trajectory of the first detection point 4-1 when the convertible frame 4 changes from the closed state to the open state, so that more position sensors can be set on the motion trajectory of the first detection point 4-1 for detection. The rear end of the second crossbar 1-7 is fixed to the second vertical bar 1-5, and the second crossbar 1-7 extends forward perpendicularly to the second vertical bar 1-5. When the second position sensor 2-2 is set on the second crossbar 1-7, it is closer to the starting position of the motion trajectory of the second detection point 4-2 when the convertible frame 4 changes from the closed state to the open state, so that more position sensors can be set on the motion trajectory of the second detection point 4-2 for detection.

[0034] In a preferred embodiment of the present invention, the position detection component also includes a third position sensor 2-3 and a fourth position sensor 2-4 which are electrically connected to the controller respectively. The third position sensor 2-3 is arranged on the motion trajectory of the first detection point 4-1 and does not overlap with the first position sensor 2-1. The fourth position sensor 2-4 is arranged on the motion trajectory of the second detection point 4-2 and does not overlap with the second position sensor 2-2.

[0035] like Figure 1 As shown, due to the production process, when the convertible rack 4 changes from the open state to the closed state, the friction force cannot be completely constant, so a third position sensor 2-3 is added to further detect the motion trajectory of the first detection point 4-1, and a fourth position sensor 2-4 is added to further detect the motion trajectory of the second detection point 4-2. The third position sensor 2-3 and the fourth position sensor 2-4 are electrically connected to the controller respectively. The positions of the third position sensor 2-3 and the first position sensor 2-1 do not overlap. When the left side of the convertible rack 4 changes from the open state to the closed state, the first detection point 4-1 passes through the first position sensor 2-1 and the third position sensor 2-3 in sequence, and the fourth position sensor 2-4 and the second position sensor The positions of the sensors 2-2 do not overlap. When the right side of the convertible rack 4 changes from an open state to a closed state, the second detection point 4-2 passes through the second position sensor 2-2 and the fourth position sensor 2-4 in sequence. The synchronization between the first position sensor 2-1 sensing the first detection point 4-1 and the second position sensor 2-2 sensing the second detection point 4-2 is detected, and the synchronization between the third position sensor 2-3 sensing the first detection point 4-1 and the fourth position sensor 2-4 sensing the second detection point 4-2 is detected, so as to improve the accuracy of the durability test of the convertible rack 4. If the third position sensor 2-3 and the fourth position sensor 2-4 do not simultaneously feed back signals to the controller, the controller turns off the oil pump 3-1 of the drive component to stop the test.

[0036] In a preferred embodiment of the present invention, the base frame 1 also includes a third cross bar 1-8 and a fourth cross bar 1-9, and the third cross bar 1-8 and the fourth cross bar 1-9 are symmetrically arranged along the symmetry plane of the convertible frame 4. The third position sensor 2-3 is connected to the first vertical bar 1-4 through the third cross bar 1-8, and the fourth position sensor 2-4 is connected to the second vertical bar 1-5 through the fourth cross bar 1-9.

[0037] like Figure 1 As shown, the rear end of the third crossbar 1-8 is fixed to the first vertical bar 1-4, the third crossbar 1-8 is arranged above the first crossbar 1-6 and extends forward perpendicularly to the first vertical bar 1-4, when the third position sensor 2-3 is arranged on the third crossbar 1-8, it is closer to the middle position of the motion track of the first detection point 4-1 when the convertible rack 4 changes from the closed state to the open state, so that more position sensors can be arranged on the motion track of the first detection point 4-1 for detection. The rear end of the fourth crossbar 1-9 is fixed to the second vertical bar 1-5, the fourth crossbar 1-9 is arranged above the second crossbar 1-7 and extends forward perpendicularly to the second vertical bar 1-5, when the fourth position sensor 2-4 is arranged on the fourth crossbar 1-9, it is closer to the middle position of the motion track of the second detection point 4-2 when the convertible rack 4 changes from the closed state to the open state, so that more position sensors can be arranged on the motion track of the second detection point 4-2 for detection.

[0038] In a preferred embodiment of the present invention, the position detection component also includes a fifth position sensor 2-5 and a sixth position sensor 2-6 which are electrically connected to the controller respectively, the fifth position sensor 2-5 is arranged on the motion trajectory of the first detection point 4-1, and the positions of the fifth position sensor 2-5, the third position sensor 2-3 and the first position sensor 2-1 do not overlap, the sixth position sensor 2-6 is arranged on the motion trajectory of the second detection point 4-2, and the positions of the sixth position sensor 2-6, the fourth position sensor 2-4 and the second position sensor 2-2 do not overlap.

[0039] like Figure 1As shown, a fifth position sensor 2-5 is added to further detect the motion trajectory of the first detection point 4-1, and a sixth position sensor 2-6 is added to further detect the motion trajectory of the second detection point 4-2. The fifth position sensor 2-5 and the sixth position sensor 2-6 are electrically connected to the controller respectively, and the positions of the fifth position sensor 2-5, the third position sensor 2-3 and the first position sensor 2-1 do not overlap. When the left side of the convertible rack 4 changes from an open state to a closed state, the first detection point 4-1 passes through the first position sensor 2-1, the third position sensor 2-3 and the fifth position sensor 2-5 in sequence. The positions of the sixth position sensor 2-6, the fourth position sensor 2-4 and the second position sensor 2-2 do not overlap. When the right side of the convertible rack 4 changes from an open state to a closed state, the second detection point 4-2 passes through the The second position sensor 2-2, the fourth position sensor 2-4 and the sixth position sensor 2-6 respectively detect the synchronization between the first position sensor 2-1 sensing the first detection point 4-1 and the second position sensor 2-2 sensing the second detection point 4-2, detect the synchronization between the third position sensor 2-3 sensing the first detection point 4-1 and the fourth position sensor 2-4 sensing the second detection point 4-2, and detect the synchronization between the fifth position sensor 2-5 sensing the first detection point 4-1 and the sixth position sensor 2-6 sensing the second detection point 4-2, so as to improve the accuracy of the durability test of the convertible rack 4. By analogy, more groups of position sensors can be simultaneously set on the motion trajectory of the first detection point 4-1 and the motion trajectory of the second detection point 4-2, so as to maximize the accuracy of the durability test of the convertible rack 4.

[0040] In a preferred embodiment of the present invention, the base frame 1 also includes a fifth cross bar 1-10 and a sixth cross bar 1-11, and the fifth cross bar 1-10 and the sixth cross bar 1-11 are symmetrically arranged along the symmetry plane of the convertible frame 4, and the fifth position sensor 2-5 is connected to the first vertical bar 1-4 through the fifth cross bar 1-10, and the sixth position sensor 2-6 is connected to the second vertical bar 1-5 through the sixth cross bar 1-11.

[0041] like Figure 1As shown, the front end of the fifth crossbar 1-10 is fixed to the first vertical bar 1-4, and the fifth crossbar 1-10 is arranged obliquely below the first crossbar 1-6 and extends backward perpendicularly to the first vertical bar 1-4. When the fifth position sensor 2-5 is arranged on the fifth crossbar 1-10, it is closer to the end position of the motion track of the first detection point 4-1 when the convertible rack 4 changes from the closed state to the open state, so that more position sensors can be arranged on the motion track of the first detection point 4-1 for detection. The front end of the sixth crossbar 1-11 is fixed to the second vertical bar 1-5, and the sixth crossbar 1-11 is arranged obliquely below the second crossbar 1-7 and extends backward perpendicularly to the second vertical bar 1-5. When the sixth position sensor 2-6 is arranged on the sixth crossbar 1-11, it is closer to the end position of the motion track of the second detection point 4-2 when the convertible rack 4 changes from the closed state to the open state, so that more position sensors can be arranged on the motion track of the second detection point 4-2 for detection.

[0042] In a preferred embodiment of the present invention, the position detection component also includes a seventh position sensor 2-7 electrically connected to the controller, and the seventh position sensor 2-7 is arranged at the position when the convertible rack 4 is fully opened to transmit a signal that the convertible rack 4 is fully opened to the controller.

[0043] like Figure 1 As shown, in the initial state of the test, the convertible rack 4 is in a completely closed state. After the seventh position sensor 2-7 senses the convertible rack 4, it transmits a signal to the controller. The controller starts the oil tanker of the oil pump 3-1 of the drive assembly to rotate clockwise, the rod chamber of the oil cylinder is filled with oil, the cylinder rod contracts, and the convertible rack 4 is driven to move backward until it is fully opened.

[0044] According to one embodiment of the present invention, the position detection component also includes an eighth position sensor 2-8 electrically connected to the controller, and the eighth position sensor 2-8 is set at the position when the convertible rack 4 is fully closed to transmit a signal that the convertible rack 4 is fully closed to the controller.

[0045] like Figure 1 As shown, after the convertible rack 4 is fully opened, the eighth position sensor 2-8 senses the convertible rack 4 to generate a signal and transmits it to the controller. The controller starts the oil pump 3-1 of the driving component to change the oil tanker from clockwise to counterclockwise rotation, the rodless chamber of the oil cylinder is filled with oil, the cylinder rod is extended, and the convertible rack 4 is driven to move forward until it is fully closed, until the seventh position sensor 2-7 senses the convertible rack 4, and this cycle is repeated.

[0046] According to one embodiment of the present invention, the base frame 1 also includes a first bracket 1-12 and a second bracket 1-13, the first bracket 1-12 is arranged at the front end of the bottom frame 1-1, the seventh position sensor 2-7 is connected to the bottom frame 1-1 through the first bracket 1-12, the second bracket 1-13 is arranged at the rear end of the bottom frame 1-1, and the eighth position sensor 2-8 is connected to the bottom frame 1-1 through the second bracket 1-13.

[0047] like Figure 1 As shown, the bottom end of the first bracket 1-12 is fixed to the front end of the bottom frame 1-1, and the first bracket 1-12 extends upward perpendicularly to the bottom frame 1-1, and the seventh position sensor 2-7 is arranged at the top end of the first bracket 1-12, so that the sensing end of the seventh position sensor 2-7 can face the front end of the convertible rack 4 when it is fully closed, and the bottom end of the second bracket 1-13 is fixed to the rear end of the bottom frame 1-1, and the second bracket 1-13 extends upward perpendicularly to the bottom frame 1-1, and the eighth position sensor 2-8 is arranged at the top end of the second bracket 1-13, so that the sensing end of the eighth position sensor 2-8 can face the rear end of the convertible rack 4 when it is fully opened.

[0048] The automobile convertible rack durability test device of the present invention drives the convertible rack 4 to open and close repeatedly under the action of the driving component. A symmetrical first detection point 4-1 is set on the left side of the convertible rack 4, and a second detection point 4-2 is set on the right side of the convertible rack 4. The first detection point 4-1 is symmetrical to the second detection point 4-2. The motion trajectory of the first detection point 4-1 and the motion trajectory of the second detection point 4-2 are respectively provided with a plurality of one-to-one corresponding position sensors, which can detect whether the left and right sides of the convertible rack 4 are synchronized, and the running speed and operation frequency of the whole test can be adjusted and controlled by presetting the stroke duration in the controller, and it is non-destructive to the test sample. The opening and closing position of the convertible rack 4 can be monitored by setting the seventh position sensor 2-7 and the eighth position sensor 2-8, and the spacing between the first column 1-2 and the second column 1-3 can be adjusted so that the device can be applied to various convertible car models. There is no human intervention in the whole test process, which can reduce labor intensity, and the detection test can be carried out under high and low temperature environments. The structure is simple, maintenance is convenient, and operation is low-cost.

[0049] like Figure 2 As shown, Figure 2 A flow chart of a durability test method for an automobile convertible rack provided by the present invention is shown.

[0050] A method for testing the durability of a convertible rack of an automobile according to an embodiment of the present invention comprises: setting a time length T in a controller 设=0.1s; the controller controls the driving assembly to drive the convertible frame 4 to reciprocate; the first position sensor 2-1 detects the first detection point 4-1 first, or the second position sensor 2-2 detects the second detection point 4-2 first, which is recorded as t1 by the controller; the second position sensor 2-2 detects the second detection point 4-2 later, or the first position sensor 2-1 detects the first detection point 4-1 later, which is recorded as t2 by the controller; the controller calculates T 实 = t2-t1, and compare T 实 With T 设 ; If T 实 >T 设 When the controller controls the drive component to stop.

[0051] like Figure 2 As shown, the time length T is preset in the controller 设 In the initial state, the convertible rack 4 is in a closed state, and the controller controls the driving assembly to start, so that the oil of the oil pump 3-1 enters the rod chamber of the first oil cylinder 3-2 and the second oil cylinder 3-3, and the cylinder rod of the first oil cylinder 3-2 and the cylinder rod of the second oil cylinder 3-3 are retracted synchronously, pulling the convertible rack 4 to open. If the first position sensor 2-1 detects the first detection point 4-1 first and then feeds back a signal to the controller, the controller records the time as t1, and the second position sensor 2-2 detects the second detection point 4-2 and then feeds back a signal to the controller, the controller records the time as t2, and compares t2-t1 with T 设 Compare, if t2-t1≤T 设 , the drive assembly pulls the convertible frame 4 backwards, if t2-t1>T 设 , then the controller controls the driving component to stop the action. It can also be that the second position sensor 2-2 detects the second detection point 4-2 first and then feeds back a signal to the controller, and the controller records the time as t1. The first position sensor 2-1 then detects the first detection point 4-1 and then feeds back a signal to the controller, and the controller records the time as t2. The processing method is as described above. It can also be that the first position sensor 2-1 detects the first detection point 4-1 while the second position sensor 2-2 detects the second detection point 4-2, which fully meets the synchronization of the convertible rack 4. The same is true when the second group of position sensors, the third position sensor 2-3 and the fourth position sensor 2-4, and the fifth position sensor 2-5 and the sixth position sensor 2-6 are added.

[0052] Preferably, the time required for the convertible rack 4 to travel from open to closed or from closed to open is set to T=15s. When the seventh position sensor 2-7 feeds back a signal to the controller, the controller starts timing. When the eighth position sensor 2-8 feeds back a signal to the controller, the timing is stopped and recorded as T'. The controller compares T' with T. When T'>T, the controller controls the drive assembly to stop.

[0053] The automobile convertible rack durability test method of the present invention realizes the durability test detection of the overall synchronization of the convertible rack 4 through the above steps, and can complete the durability detection test of whether the convertible rack 4 is deformed when the number of times required by regulations is met.

[0054] In the embodiments of the present invention, the term "plurality" refers to two or more than two, unless otherwise clearly defined. The terms "installation", "connection", "fixation" and the like should be understood in a broad sense. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection. For those of ordinary skill in the art, the specific meanings of the above terms in the embodiments of the present invention can be understood according to specific circumstances.

[0055] In the description of the embodiments of the present invention, it needs to be understood that the directions or positional relationships indicated by the terms "upper" and "lower" are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the embodiments of the present invention and simplifying the description, rather than indicating or implying that the device or unit referred to must have a specific direction, be constructed and operated in a specific orientation. Therefore, it cannot be understood as a limitation on the embodiments of the present invention.

[0056] In the description of this specification, the description of the terms "one embodiment", "a preferred embodiment", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the embodiment of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0057] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A vehicle convertible rack durability test device, characterized in that: include: A base frame (1) comprises a bottom frame (1-1), a first column (1-2) and a second column (1-3); the bottom frame (1-1) is arranged around the circumference of an open-top frame (4); the first column (1-2) and the second column (1-3) are connected to the bottom frame (1-1) symmetrically along a symmetry plane of the open-top frame (4); and two bases of the open-top frame (4) are connected to the first column (1-2) and the second column (1-3) respectively; Controller; A position detection component, comprising a first position sensor (2-1) and a second position sensor (2-2) symmetrically arranged on both sides of the convertible frame (4), wherein the first position sensor (2-1) and the second position sensor (2-2) are electrically connected to the controller; as well as A driving assembly, the driving assembly is electrically connected to the controller and an output end of the driving assembly is connected to the base; The convertible frame (4) is provided with a left-right symmetrical first detection point (4-1) and a second detection point (4-2), the first position sensor (2-1) is provided on a motion track of the first detection point (4-1), and the second position sensor (2-2) is provided on a motion track of the second detection point (4-2), so as to detect whether the first detection point (4-1) and the second detection point (4-2) are synchronized; The position detection component also includes a third position sensor (2-3) and a fourth position sensor (2-4) which are electrically connected to the controller respectively, the third position sensor (2-3) being arranged on the motion trajectory of the first detection point (4-1) and not overlapping with the first position sensor (2-1), and the fourth position sensor (2-4) being arranged on the motion trajectory of the second detection point (4-2) and not overlapping with the second position sensor (2-2).

2. The automobile convertible rack durability test device according to claim 1, characterized in that: The base frame (1) further comprises a first vertical rod (1-4) and a second vertical rod (1-5), wherein the first vertical rod (1-4) and the second vertical rod (1-5) are symmetrically arranged along a symmetric plane of the convertible frame (4), the first position sensor (2-1) is connected to the first upright post (1-2) via the first vertical rod (1-4), and the second position sensor (2-2) is connected to the second upright post (1-3) via the second vertical rod (1-5).

3. The automobile convertible rack durability test device according to claim 2, characterized in that: The base frame (1) further comprises a first cross bar (1-6) and a second cross bar (1-7), wherein the first cross bar (1-6) and the second cross bar (1-7) are arranged symmetrically along the symmetry plane of the convertible frame (4), the first position sensor (2-1) is connected to the first vertical bar (1-4) via the first cross bar (1-6), and the second position sensor (2-2) is connected to the second vertical bar (1-5) via the second cross bar (1-7).

4. The automobile convertible rack durability test device according to claim 2, characterized in that: The base frame (1) further comprises a third cross bar (1-8) and a fourth cross bar (1-9), wherein the third cross bar (1-8) and the fourth cross bar (1-9) are arranged symmetrically along the symmetry plane of the convertible frame (4); the third position sensor (2-3) is connected to the first vertical bar (1-4) via the third cross bar (1-8); and the fourth position sensor (2-4) is connected to the second vertical bar (1-5) via the fourth cross bar (1-9).

5. The automobile convertible rack durability test device according to claim 4, characterized in that: The position detection component also includes a fifth position sensor (2-5) and a sixth position sensor (2-6) which are electrically connected to the controller respectively. The fifth position sensor (2-5) is arranged on the motion trajectory of the first detection point (4-1), and the positions of the fifth position sensor (2-5), the third position sensor (2-3) and the first position sensor (2-1) do not overlap. The sixth position sensor (2-6) is arranged on the motion trajectory of the second detection point (4-2), and the positions of the sixth position sensor (2-6), the fourth position sensor (2-4) and the second position sensor (2-2) do not overlap.

6. The automobile convertible rack durability test device according to claim 5, characterized in that: The base frame (1) further comprises a fifth crossbar (1-10) and a sixth crossbar (1-11), wherein the fifth crossbar (1-10) and the sixth crossbar (1-11) are arranged symmetrically along the symmetry plane of the convertible frame (4); the fifth position sensor (2-5) is connected to the first vertical bar (1-4) via the fifth crossbar (1-10), and the sixth position sensor (2-6) is connected to the second vertical bar (1-5) via the sixth crossbar (1-11).

7. The automobile convertible rack durability test device according to claim 1, characterized in that: The position detection component also includes a seventh position sensor (2-7) electrically connected to the controller, wherein the seventh position sensor (2-7) is arranged at the position when the convertible shelf (4) is fully opened, so as to transmit a signal indicating that the convertible shelf (4) is fully opened to the controller.

8. The automobile convertible rack durability test device according to claim 7, characterized in that: The position detection component also includes an eighth position sensor (2-8) electrically connected to the controller, and the eighth position sensor (2-8) is arranged at the position when the convertible rack (4) is fully closed, so as to transmit a signal that the convertible rack (4) is fully closed to the controller.

9. A method for performing a durability test on a convertible rack of an automobile using the convertible rack durability test device of any one of claims 1 to 8, characterized in that: include: Preset time T in the controller 设 =0.1s; The controller controls the driving assembly to drive the convertible frame (4) to reciprocate; The first position sensor (2-1) detects the first detection point (4-1) first, or the second position sensor (2-2) detects the second detection point (4-2) first, which is recorded by the controller as t1; The second position sensor (2-2) detects the second detection point (4-2), or the first position sensor (2-1) detects the first detection point (4-1), which is recorded by the controller as t2; The controller calculates T 实 = t2-t1, and compare T 实 With T 设 ; If T 实 >T 设 When the controller controls the drive component to stop.

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