Test bench assembly for locking mechanism

Abstract

The present invention relates to the field of locking mechanism testing technology, and specifically discloses a test bench assembly of a locking mechanism, including a vehicle body simulation mechanism, a battery-swap box simulation mechanism and a lifting mechanism, wherein a plurality of position-adjustable locking pins are provided on the vehicle body simulation mechanism, the battery-swap box simulation mechanism is connected to the lifting mechanism, the battery-swap box simulation mechanism includes a plurality of locking mechanisms to be tested, and the lifting mechanism can lift the battery-swap box simulation mechanism upward so that a plurality of locking pins respectively complete the locking process with the corresponding locking mechanisms to be tested. Since the position of the locking pin on the vehicle body simulation mechanism can be adjusted, the installation position and installation tolerance of the locking pin on a variety of vehicle models can be simulated, thereby verifying whether the locking mechanism to be tested can complete locking when the locking pin has a certain installation tolerance, without having to make a plurality of tooling of corresponding sizes for battery-swap testing, thereby shortening the research and development cycle and having low costs.

Description

Technical Field

[0001] The invention relates to the technical field of locking mechanism testing, and in particular to a test bench assembly of a locking mechanism. Background Art

[0002] In view of the increasing number of electric vehicle models on the market and the increasing types of battery swap boxes corresponding to different models, battery swapping for electric vehicles has become an important business content of various battery swap companies. During the assembly process of the battery swap box and the electric vehicle, multiple locking pins on the electric vehicle are locked to the multiple locking mechanisms on the battery swap box. The reliability of the locking state of the locking mechanism and the locking pin becomes a guarantee for the good fixation of the battery swap box on the electric vehicle.

[0003] Since the size of the battery swap box corresponding to each vehicle model is different, the setting position of the locking mechanism thereon is also different. In order to test whether the locking mechanisms on different types of battery swap boxes meet the locking requirements of the battery swap boxes and electric vehicles, it is necessary to make models of the locking mechanisms of the battery swap boxes corresponding to multiple vehicle models, as well as models of the corresponding locking pins on electric vehicles, and then conduct testing experiments to verify whether the locking state of the locking mechanisms corresponding to each vehicle model is reliable. Because each vehicle model requires a model of the locking mechanism on the battery swap box and a model of the locking pin on the electric vehicle, the development cost is high. In addition, since it takes time to make the model, the development cycle is long and the testing efficiency is low.

[0004] Therefore, a test bench assembly with a locking mechanism is urgently needed to solve the above problems. Summary of the invention

[0005] The purpose of the present invention is to provide a test bench assembly for a locking mechanism, which can quickly verify the locking reliability of the locking mechanism on the battery swap box and the locking pin on the vehicle body of different vehicle models, thereby improving the test efficiency, having low costs and short R&D cycle.

[0006] To achieve the above object, the present invention adopts the following technical solutions:

[0007] The present invention provides a test bench assembly of a locking mechanism, and the test bench assembly of the locking mechanism comprises:

[0008] frame;

[0009] A vehicle body simulation mechanism, the vehicle body simulation mechanism comprising a first mounting frame and an adjustment plate, the adjustment plate being arranged on the first mounting frame, the first mounting frame being fixed on the frame, and the adjustment plate being provided with a plurality of position-adjustable locking pins;

[0010] A battery-swap box simulation mechanism, the battery-swap box simulation mechanism is located below the vehicle body simulation mechanism, the battery-swap box simulation mechanism includes a plurality of locking mechanisms to be tested, each of the locking mechanisms to be tested corresponds to one of the locking pin settings;

[0011] A lifting mechanism is arranged on the frame, and the lifting mechanism is connected to the battery-swap box simulation mechanism. The lifting mechanism can lift the battery-swap box simulation mechanism upward so that the multiple locking pins can be locked with the corresponding locking mechanisms to be tested.

[0012] Optionally, a first slider is provided on the adjustment plate, a sliding groove is provided on the adjustment plate, and the first slider is slidably connected to the sliding groove.

[0013] Optionally, a guide groove is provided on the first slider, a second slider is provided in the guide groove, the second slider can slide along the guide groove, and the locking pin is arranged on the second slider.

[0014] Optionally, the locking pin includes a rod body, a floating mounting member and a pin head, one end of the rod body is fixed on the second slider, the other end of the rod body is threadedly connected to the floating mounting member, the floating mounting member fixes the pin head adjustably on the rod body, the floating mounting member is fixedly connected to the pin head, and one end of the pin head is arranged to pass through the floating mounting member.

[0015] Optionally, the battery swap box simulation mechanism includes a fixed plate and a protective shell, the lower end surface of the fixed plate is connected to the lifting mechanism, the upper end surface of the fixed plate is provided with the locking mechanism to be tested, the protective shell is buckled on the fixed plate, and the protective shell exposes the locking mechanism to be tested.

[0016] Optionally, the upper end surface of the fixed plate is provided with a first mounting seat, a first floating top block and a battery simulation plate, the first floating top block is telescopically arranged on the first mounting seat through a first elastic member, the upper end surface of the first floating top block is connected to the battery simulation plate, and the upper end surface of the battery simulation plate is provided with a plurality of counterweight blocks.

[0017] Optionally, the upper end surface of the fixed plate is provided with a second mounting seat and a second floating top block, the second floating top block is telescopically arranged on the second mounting seat through a second elastic member, the locking mechanism to be tested is arranged on the second floating top block, and the battery simulation board is provided with a plurality of through holes so that the locking port of the locking mechanism to be tested is exposed on the upper end surface of the battery simulation.

[0018] Optionally, a magnetic attraction mechanism is provided on the second floating top block, and the magnetic attraction mechanism can unlock the locked locking mechanism to be tested.

[0019] Optionally, the locking mechanism to be tested includes a proximity sensor and a suction sheet, and the suction sheet can cover or expose the proximity sensor.

[0020] Optionally, the lifting mechanism includes a second mounting frame, and a motor, a lifting cylinder and a lifting platform mounted on the second mounting frame, the motor is transmission-connected to the lifting cylinder, the lifting cylinder is connected to the lifting platform, and the battery-changing box simulation mechanism is placed on the lifting platform.

[0021] The beneficial effects of the present invention are:

[0022] The present invention provides a test bench assembly of a locking mechanism, which includes a frame, a vehicle body simulation mechanism, a battery-swap box simulation mechanism and a lifting mechanism arranged on the frame, wherein the vehicle body simulation mechanism includes an adjustment plate arranged on a first mounting frame, a plurality of position-adjustable locking pins are arranged on the adjustment plate, the locking pins are arranged in the direction of the battery-swap box simulation mechanism, the battery-swap box simulation mechanism is connected to the lifting mechanism, the battery-swap box simulation mechanism is located below the vehicle body simulation mechanism, the battery-swap box simulation mechanism includes a plurality of locking mechanisms to be tested, and the lifting mechanism can lift the battery-swap box simulation mechanism upward so that the plurality of locking pins respectively complete the locking process with the corresponding locking mechanisms to be tested. Since the position of the locking pin on the vehicle body simulation mechanism can be adjusted, the installation position and installation tolerance of the locking pin on a variety of vehicle models can be simulated, thereby verifying whether the locking mechanism to be tested can complete the locking when the locking pin has a certain installation tolerance, and there is no need to make a plurality of toolings of corresponding sizes according to the size of the vehicle body in advance for battery-swap testing, thereby shortening the research and development cycle and reducing the development cost at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a structural schematic diagram of a test bench assembly of a locking mechanism provided in an embodiment of the present invention;

[0024] Figure 2 A front view of a test bench assembly of a locking mechanism provided in an embodiment of the present invention;

[0025] Figure 3 It is a structural schematic diagram of a vehicle body simulation mechanism provided in an embodiment of the present invention;

[0026] Figure 4 for Figure 3 A partial enlarged view of the middle A;

[0027] Figure 5 is a cross-sectional view of a vehicle body simulation mechanism provided in an embodiment of the present invention;

[0028] Figure 6 for Figure 5 A partial enlarged view of point B in the middle;

[0029] Figure 7 It is a structural schematic diagram of the battery swap box simulation mechanism and the lifting mechanism provided in an embodiment of the present invention;

[0030] Figure 8 for Figure 7 A partial enlarged view of point C in the middle;

[0031] Fig. 9 It is a front view of the battery-swap box simulation mechanism and the lifting mechanism provided in an embodiment of the present invention;

[0032] Fig.10 for Fig. 9 A partial enlarged view of point D in the middle;

[0033] Fig.11 It is a structural schematic diagram of the lifting mechanism provided in an embodiment of the present invention.

[0034] In the figure:

[0035] 100, frame; 110, column; 120, crossbeam; 130, longitudinal beam; 140, universal wheel;

[0036] 200, vehicle body simulation mechanism; 210, first mounting frame; 211, bolt; 220, adjustment plate; 230, first slider; 240, second slider; 250, locking pin; 2501, rod body; 2502, floating mounting member; 2503, pin head; 2504, locking groove; 260, lead screw; 261, knob; 270, scale;

[0037] 300, battery exchange box simulation mechanism; 310, fixing plate; 3101, first mounting seat; 3102, first floating top block; 3103, first elastic member; 3104, second mounting seat; 3105, second floating top block; 3106, second elastic member; 320, protective shell; 330, locking mechanism to be tested; 3301, lock mouth; 3302, base; 3303, lock body; 3304, steel ball holder; 3305, locking steel ball; 3306, reset spring; 3307, proximity sensor; 3308, suction sheet; 340, battery simulation board; 341, through hole; 342, counterweight;

[0038] 400, lifting mechanism; 410, second mounting frame; 420, motor; 430, lifting cylinder; 431, connecting flange; 440, lifting platform; 450, commutator; 460, transmission shaft. DETAILED DESCRIPTION

[0039] The technical solution of the present invention will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0040] In the description of the present invention, it should be noted that the orientations or positional relationships indicated by the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside", etc. are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance. Among them, the terms "first position" and "second position" are two different positions, and the first feature "above", "above" and "above" the second feature include the first feature being directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. The first feature "below", "below" and "below" the second feature include the first feature being directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0041] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed 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 it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0042] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0043] Generally speaking, the locking pin on the body end of an electric vehicle has a certain installation tolerance during installation. Therefore, when locking the locking mechanism of the battery swap box, it is necessary to test whether the locking mechanism on the battery swap box can complete the locking task and lock reliably when the locking pin has a certain installation tolerance.

[0044] To this end, this embodiment provides a test bench assembly of a locking mechanism, such as Figure 1 and Figure 2 As shown, the test bench assembly of the locking mechanism includes a frame 100, and a body simulation mechanism 200, a battery-swap box simulation mechanism 300 and a lifting mechanism 400 arranged on the frame 100, wherein the frame 100 is surrounded by mutually connected columns 110, crossbeams 120 and longitudinal beams 130, two crossbeams 120 are arranged oppositely along the X-axis direction, two longitudinal beams 130 are arranged oppositely along the Y-axis direction, and the crossbeams 120 and longitudinal beams 130 each include two layers along the Z-axis direction, the body simulation mechanism 200 is arranged on the crossbeam 120 located at the top of the frame 100, the battery-swap box simulation mechanism 300 is connected to the lifting mechanism 400, and the lifting mechanism 400 is arranged on the crossbeam 120 located at the bottom. Optionally, a brakeable universal wheel 140 is also provided at the bottom of the column 110 to facilitate the movement of the test bench assembly of the locking mechanism to a specified position, and the flexibility and applicability are good.

[0045] Furthermore, the vehicle body simulation mechanism 200 includes a first mounting frame 210 and an adjustment plate 220, the adjustment plate 220 is arranged on the first mounting frame 210, the first mounting frame 210 is fixed to the crossbeam 120 of the frame 100 by bolts 211, and a plurality of position-adjustable locking pins 250 are arranged on the adjustment plate 220, and the locking pins 250 are arranged in the direction of the battery-swap box simulation mechanism 300, and the battery-swap box simulation mechanism 300 is located below the vehicle body simulation mechanism 200, and the battery-swap box simulation mechanism 300 includes a plurality of locking mechanisms to be tested. The structure 330 is a structure in which each locking mechanism 330 to be tested corresponds to a locking pin 250. The lifting mechanism 400 can lift the battery-swap box simulation mechanism 300 upwards so that the multiple locking pins 250 can complete the locking process with the corresponding locking mechanism 330 to be tested. When the multiple locking mechanisms 330 to be tested and the multiple locking pins 250 are locked, the lifting mechanism 400 is lowered to the initial position, the battery-swap box simulation mechanism 300 is separated from the lifting mechanism 400, and the battery-swap box simulation mechanism 300 is locked with the body simulation mechanism 200. Since the position of the locking pin 250 on the body simulation mechanism 200 in this embodiment can be adjusted, the installation position and installation tolerance of the locking pin 250 on various vehicle models can be simulated, thereby verifying whether the locking mechanism 330 to be tested can complete the locking when the locking pin 250 has a certain installation tolerance, and the reliability of the locking meets the needs of fixing the battery-swap box, and there is no need to make multiple tooling of corresponding sizes according to the size of the body in advance for battery-swap testing, which shortens the research and development cycle and reduces the development cost.

[0046] See also Figure 3 and Figure 4In this embodiment, the locking pin 250 can move along the X-axis direction and the Y-axis direction on the adjustment plate 220. The feasibility of battery replacement is verified by adjusting the limit tolerance of the locking pin 250 at different installation points. Specifically, a first slider 230 is provided on the adjustment plate 220, and a slide groove is provided on the adjustment plate 220. The slide groove is arranged along the X-axis direction, and the first slider 230 is slidably connected to the slide groove. A guide groove is provided on the first slider 230, and the guide groove is arranged along the Y-axis direction. A second slider 240 is provided in the guide groove, and the second slider 240 can slide along the guide groove. The locking pin 250 is arranged on the second slider 240, so that the locking pin 250 can adjust its setting position along the X-axis direction or the Y-axis direction on the adjustment plate 220 to simulate the installation tolerance of the vehicle body end. Optionally, a lead screw 260 is passed through the second slider 240, and the lead screw 260 is threadedly matched with the second slider 240. A knob 261 is provided at one end of the lead screw, and the second slider 240 can be driven to move in the guide groove by rotating the knob 261, with high adjustment accuracy.

[0047] In order to ensure the accuracy of adjusting the position of the locking pin 250, a scale 270 is provided on the inner wall of the first slider 230 and the slide groove, and the distance that the locking pin 250 moves in the X-axis direction or the Y-axis direction can be calibrated by the scale 270. Generally speaking, the movable distance of the first slider 230 in the slide groove along the X-axis direction is maintained at ±3mm, and the movable distance of the second slider 240 in the guide groove of the first slider 230 along the Y-axis direction is also maintained at ±3mm. Of course, in other embodiments, the movable distance of the first slider 230 in the slide groove along the X-axis direction and the movable distance of the second slider 240 in the guide groove of the first slider 230 along the Y-axis direction can also be adjusted according to actual conditions.

[0048] Further, see Figure 5 and Figure 6 In order to simulate the installation tolerance of the lock pin 250 in the Z-axis direction, the lock pin 250 in this embodiment is set as a lock pin with adjustable height. Specifically, the lock pin 250 includes a rod body 2501, a floating mounting member 2502 and a pin head 2503, and the pin head 2503 is provided with an annular locking groove 2504. One end of the rod body 2501 is fixed on the second slider 240, and the other end of the rod body 2501 is threadedly connected with the floating mounting member 2502. The length of the rod body 2501 is fixed, and the floating mounting member 2502 adjustably fixes the pin head 2503 on the rod body 2501. The floating mounting member 2502 is fixedly connected with the pin head 2503, and one end of the pin head 2503 is set through the floating mounting member 2502. By tightening or loosening the floating mounting member 2502, the position of the pin head 2503 in the Z-axis direction can be adjusted. Exemplarily, in this embodiment, the movable distance of the pin head 2503 along the Z-axis direction is maintained at ±2.5mm. Of course, in other embodiments, the movable distance of the pin head 2503 along the Z-axis direction can also be adjusted according to actual conditions.

[0049] See also Figure 7 and Figure 8 The battery-swap box simulation mechanism 300 in this embodiment includes a fixed plate 310, the lower end surface of the fixed plate 310 is in contact with the lifting mechanism 400, and the upper end surface of the fixed plate 310 is provided with a locking mechanism 330 to be tested. When the lifting mechanism 400 lifts the battery-swap box to the target position, the locking pin 250 is locked with the locking mechanism 330 to be tested, and then the lifting mechanism 400 descends, and the fixed plate 310 is separated from the lifting mechanism 400. Furthermore, a protective shell 320 is also provided on the fixed plate 310, and the protective shell 320 is buckled on the fixed plate 310 to protect the locking mechanism 330 to be tested, and an opening is provided above the protective shell 320 to avoid the locking mechanism 330 to be tested, so as to expose the locking mechanism 330 to be tested.

[0050] As an optional solution, the upper end surface of the fixed plate 310 is provided with a first mounting seat 3101, and a first elastic member 3103, a first floating top block 3102 and a battery simulation board 340 connected to the first mounting seat 3101. The two ends of the first elastic member 3103 are respectively connected to the first mounting seat 3101 and the first floating top block 3102. The first floating top block 3102 is telescopically arranged on the first mounting seat 3101 through the first elastic member 3103, and the upper end surface of the first floating top block 3102 is connected to the battery simulation board 340. The arrangement of the first elastic member 3103 can buffer the battery simulation board 340 when the battery swap box simulation mechanism 300 rises, thereby avoiding a rigid collision between the battery simulation board and the protective shell 320.

[0051] More preferably, the upper end surface of the battery simulation board 340 is provided with a plurality of counterweight blocks 342. In this embodiment, eight counterweight blocks 342 are used as an example for explanation. Of course, in other embodiments, more counterweight blocks 342 can be provided according to the weight of different types of battery swap boxes, so that the battery swap box simulation mechanism 300 can simulate the actual working state of the battery swap box, and then test whether the locking mechanism 330 to be tested can meet the locking reliability requirements.

[0052] Furthermore, the upper end surface of the fixed plate 310 is provided with a second mounting seat 3104, and a second elastic member 3106 and a second floating top block 3105 connected to the second mounting seat 3104. The two ends of the second elastic member 3106 are respectively connected to the second mounting seat 3104 and the second floating top block 3105. The locking mechanism 330 to be tested is arranged on the second floating top block 3105, and the locking mechanism 330 to be tested is pressed against the lower end surface of the battery simulation board 340 through the second elastic member 3106. The battery simulation board 340 is provided with a plurality of through holes 341, which respectively correspond to the plurality of locking mechanisms 330 to be tested, so that the locking port 3301 of the locking mechanism 330 to be tested can be exposed on the upper end surface of the battery simulation, thereby facilitating the locking of the locking pin 250 and the locking mechanism 330 to be tested.

[0053] As an optional solution, the locking mechanism to be tested 330 in this embodiment is described by taking an electromagnetic locking mechanism as an example. A magnetic attraction mechanism (not shown in the figure) is provided on the second floating top block 3105, and the locked locking mechanism to be tested 330 can be unlocked by the magnetic attraction mechanism. Since the second spring can support the second floating top block 3105, the magnetic attraction mechanism can be closely fitted with the contact surface of the locking mechanism to be tested 330, ensuring that the magnetic force of the magnetic attraction mechanism is maximum, and locking or unlocking can be completed smoothly.

[0054] For example, see Fig. 9 and Fig.10 The locking mechanism 330 to be tested in this embodiment includes a base 3302 and a lock body 3303 arranged on the base 3302. A steel ball holder 3304 is arranged on the base 3302. The lock body 3303 is covered outside the steel ball holder 3304 to protect it. A locking steel ball 3305 is arranged in the steel ball holder 3304. A reset spring 3306 is sleeved under the steel ball holder 3304. When the lock pin 250 is locked, the magnetic attraction mechanism is energized and pulls down the steel ball holder 3304. The locking steel ball 3305 immediately falls into the locking groove 2504 of the pin head 2503, and then the magnetic attraction mechanism is powered off, and the reset spring 3306 applies a reverse force to the steel ball holder 3304, so that the locking steel ball 3305 is stuck in the locking groove 2504, and the locking is completed; when unlocking is required, the magnetic attraction mechanism is powered on, and the magnetic attraction mechanism overcomes the elastic force of the reset spring 3306, and provides a downward pulling force to the steel ball holder 3304, so that the locking steel ball 3305 escapes from the locking groove 2504 of the pin head 2503, and the unlocking is completed.

[0055] Furthermore, a suction sheet 3308 is provided at the bottom of the steel ball holder 3304, a proximity sensor 3307 is provided below the base 3302, a step portion is provided at the edge of the suction sheet 3308, and an effective test stroke of the proximity sensor 3307 is 0 mm-1.5 mm. In the initial state, the distance between the suction sheet 3308 and the proximity sensor 3307 is 2 mm, and at this time, the proximity sensor 3307 has no signal. When locked, the steel ball holder 3304 drives the suction sheet 3308 to move downward, and the distance between the step portion of the suction sheet 3308 and the proximity sensor 3307 is reduced to 0.5 mm, thereby shielding the proximity sensor 3307. 7 has a signal, and then the reset spring 3306 drives the steel ball retaining frame 3304 to move up, and the suction plate 3308 follows the steel ball retaining frame 3304 to move up. At this time, the distance between the suction plate 3308 and the proximity sensor 3307 is 2mm, and the contact sensor is exposed. At this time, the proximity sensor 3307 has no signal, and the contact sensor is electrically connected to the control system. The control system obtains two inversions of the proximity sensor 3307, that is, the process of signal-no signal, to determine whether the locking mechanism 330 to be tested is locked successfully. When all the locking mechanisms 330 to be tested are locked successfully, the lifting mechanism 400 starts to descend, thereby preventing the battery swap box simulation mechanism 300 from falling.

[0056] See also Fig. 9 and Fig.11 The lifting mechanism 400 in this embodiment includes a second mounting frame 410, and a motor 420, a lifting cylinder 430 and a lifting platform 440 installed on the second mounting frame 410. The motor 420 is transmission-connected to the lifting cylinder 430, the lifting cylinder 430 is connected to the lifting platform 440, and the battery exchange box simulation mechanism 300 is placed on the lifting platform 440.

[0057] In order to ensure the stability of lifting the battery swap box simulation mechanism 300, four lifting cylinders 430 are provided in this embodiment. The four lifting cylinders 430 are respectively arranged at the four corners of the battery swap box simulation mechanism 300. A meshing worm and a worm wheel are arranged in the lifting cylinder 430. One end of the worm extends out of the lifting cylinder 430. The end of the worm extending out of the lifting cylinder 430 is provided with a connecting flange 431. The connecting flange 431 is detachably connected to the lifting platform 440 through a fixing piece (not shown in the figure). The output end of the motor 420 is connected to the commutator 450. 50 converts the power of the motor 420 into two-way outputs of two transmission shafts 460 horizontally arranged along the X-axis direction, and then the transmission shaft 460 is connected to the worm gear transmission in the lifting cylinder 430. At the same time, the worm in the lifting cylinder 430 converts the power to the Y-axis direction perpendicular to it and outputs it in parallel with the transmission shaft 460, and then transmits it to another adjacent lifting cylinder 430, converting the horizontal rotation power into vertical lifting power, so that the four lifting cylinders 430 are driven to move upward or downward simultaneously along the Z-axis through the forward and reverse rotation of the motor 420, with high transmission accuracy and smooth movement.

[0058] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the embodiments here. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the claims of the present invention.

Claims

1. Test bench assembly of locking mechanism, It is characterized in that include: Rack(100); A vehicle body simulation mechanism (200), the vehicle body simulation mechanism (200) comprising a first mounting frame (210) and an adjustment plate (220), the adjustment plate (220) being arranged on the first mounting frame (210), the first mounting frame (210) being fixed on the frame (100), and the adjustment plate (220) being provided with a plurality of position-adjustable locking pins (250); A battery-swap box simulation mechanism (300), the battery-swap box simulation mechanism (300) being located below the vehicle body simulation mechanism (200), the battery-swap box simulation mechanism (300) comprising a plurality of locking mechanisms to be tested (330), each of the locking mechanisms to be tested (330) being arranged corresponding to one of the locking pins (250); A lifting mechanism (400), wherein the lifting mechanism (400) is arranged on the frame (100), the lifting mechanism (400) is connected to the battery-swap box simulation mechanism (300), and the lifting mechanism (400) can lift the battery-swap box simulation mechanism (300) upwards so that the plurality of locking pins (250) are respectively locked with the corresponding locking mechanisms (330) to be tested; The adjustment plate (220) is provided with a first sliding block (230), the adjustment plate (220) is provided with a sliding groove, and the first sliding block (230) is slidably connected to the sliding groove; The first slider (230) is provided with a guide groove, a second slider (240) is provided in the guide groove, the second slider (240) can slide along the guide groove, and the locking pin (250) is arranged on the second slider (240).

2. The test bench assembly of the locking mechanism according to claim 1, It is characterized in that The locking pin (250) comprises a rod body (2501), a floating mounting member (2502) and a pin head (2503); one end of the rod body (2501) is fixed on the second slider (240); the other end of the rod body (2501) is threadedly connected to the floating mounting member (2502); the floating mounting member (2502) fixes the pin head (2503) on the rod body (2501) in an adjustable manner; the floating mounting member (2502) is fixedly connected to the pin head (2503); one end of the pin head (2503) is arranged to pass through the floating mounting member (2502).

3. The test bench assembly of the locking mechanism according to claim 1, It is characterized in that The battery-swap box simulation mechanism (300) comprises a fixing plate (310) and a protective shell (320); the lower end surface of the fixing plate (310) is connected to the lifting mechanism (400); the upper end surface of the fixing plate (310) is provided with the locking mechanism (330) to be tested; the protective shell (320) is buckled on the fixing plate (310), and the protective shell (320) exposes the locking mechanism (330) to be tested.

4. The test bench assembly of the locking mechanism according to claim 3, It is characterized in that The upper end surface of the fixed plate (310) is provided with a first mounting seat (3101), a first floating top block (3102) and a battery simulation board (340); the first floating top block (3102) is telescopically arranged on the first mounting seat (3101) via a first elastic member (3103); the upper end surface of the first floating top block (3102) is connected to the battery simulation board (340); and the upper end surface of the battery simulation board (340) is provided with a plurality of counterweight blocks (342).

5. The test bench assembly of the locking mechanism according to claim 4, It is characterized in that The upper end surface of the fixed plate (310) is provided with a second mounting seat (3104) and a second floating top block (3105); the second floating top block (3105) is telescopically arranged on the second mounting seat (3104) via a second elastic member (3106); the locking mechanism to be tested (330) is arranged on the second floating top block (3105); and the battery simulation board (340) is provided with a plurality of through holes (341) so that the locking port (3301) of the locking mechanism to be tested (330) is exposed on the upper end surface of the battery simulation.

6. The test bench assembly of the locking mechanism according to claim 5, It is characterized in that The second floating top block (3105) is provided with a magnetic attraction mechanism, and the magnetic attraction mechanism can unlock the locked locking mechanism (330) to be tested.

7. The test bench assembly of the locking mechanism according to claim 6, It is characterized in that The locking mechanism (330) to be tested comprises a proximity sensor (3307) and a suction sheet (3308), wherein the suction sheet (3308) is capable of shielding or exposing the proximity sensor (3307).

8. The test bench assembly of the locking mechanism according to claim 1, It is characterized in that The lifting mechanism (400) includes a second mounting frame (410), and a motor (420), a lifting cylinder (430) and a lifting platform (440) mounted on the second mounting frame (410); the motor (420) is transmission-connected to the lifting cylinder (430), the lifting cylinder (430) is connected to the lifting platform (440), and the battery-swap box simulation mechanism (300) is placed on the lifting platform (440).

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