Charging Gun Plugging and Unplugging Force Test Device and Control Method

Abstract

The present application discloses a charging gun plugging and unplugging force testing device and control method, wherein a turntable is installed at the output end of a rotating working part; a plugging and unplugging driving part comprises at least four servo electric push rods arranged around a side of the turntable away from the rotating working part, and the terminal end of the output end of the servo electric push rod is a joint ball structure; the charging gun plugging and unplugging force testing device and control method provided by the present invention comprises a turntable installed at the output end of the rotating working part, a plurality of servo electric push rods are installed on the turntable, a clamping plate is provided with joint seats corresponding to the plurality of servo electric push rods, and the joint ball structure extends into and is restricted to the joint seats to form a torsional fit; various artificial plugging and unplugging actions can be simulated through the working adjustment of the servo electric push rod, and the data obtained by the servo electric push rod can obtain the value of the plugging and unplugging force through comprehensive calculation, so as to evaluate the working conditions of the charging gun and the charging interface, and the above monitoring of the plugging and unplugging force is real-time, thereby forming a complete life performance curve.

Description

Technical Field

[0001] The present invention relates to the field of charging gun plugging and extraction force testing, and in particular to a charging gun plugging and extraction force testing device and a control method. Background Art

[0002] The process of charging new energy vehicles (usually electric vehicles and plug-in hybrid vehicles) uses a charging gun, which includes a charging gun body and a charging port installed on the new energy vehicle. The design of the charging gun and charging port should ensure that users can charge the vehicle safely and conveniently, while ensuring the stability and efficiency of the charging process. With the rapid development of the new energy vehicle industry, related charging technologies and standards are also constantly improving and updating.

[0003] In addition to the relevant electrical performance requirements, the force required during the plugging and unplugging process of the charging gun is also very important. It can reflect the quality of the fixing effect and provide users with a suitable operating experience. As the service life of the charging gun increases, the force required during the plugging and unplugging process and the fixing effect of the charging gun will change. When the charging gun is used manually, the angle between the charging gun and the charging interface may not be accurate, and the direction of the force may not completely coincide with the direction of the combination; and in the process of separating the charging gun from the charging interface, the direction of the force may not completely coincide with the direction of the combination, and it is often accompanied by shaking movements. At present, there is no plugging and unplugging force test device that simulates human operation in the field of charging guns; in order to be closer to the normal use state, the current plugging and unplugging life test of the charging gun often uses manual operation, which is inefficient and burdensome for the staff, especially for the state changes that cannot be monitored and can only be checked in stages. Summary of the invention

[0004] The main purpose of the present invention is to provide a charging gun plugging and unplugging force testing device and control method, aiming to solve the problem that the plugging and unplugging life test of the charging gun is often done by manual operation close to the use state, which is inefficient and burdensome to the staff, especially the state changes cannot be monitored and can only be checked in stages.

[0005] In order to achieve the above object, the present invention provides a charging gun plugging and pulling force testing device, comprising:

[0006] Base part;

[0007] A rotating working part is installed on the base part, and the output end of the rotating working part is arranged horizontally;

[0008] A rotating disk, mounted at the output end of the rotating working part;

[0009] The plug-in drive unit includes at least four servo electric push rods arranged around the turntable on a side away from the rotating working unit, and the output ends of the servo electric push rods are end-jointed ball structures;

[0010] The clamping plate is provided with joint seats corresponding to the plurality of servo electric push rods, and the joint ball structure extends into and is restricted to the joint seat to form a torsional fit;

[0011] A gun mounting rod, mounted on a side of the clamping plate away from the plug-in drive unit, and used to fix an external charging gun, wherein when the charging gun is mounted on the gun mounting rod, the working end of the charging gun is parallel to the thickness direction of the clamping plate and corresponds to the center position;

[0012] The processing center controls the operation of the rotating working part and the plugging and unplugging driving part.

[0013] Furthermore, the base portion includes a vertical base, a transverse base and a vertical driving member, the vertical driving member drives the transverse base to move in the vertical direction, an installation platform is provided on the transverse base, and a transverse driving member is provided corresponding to the installation platform to drive the installation platform in the width direction of the vertical base, and the output end of the rotating working part is perpendicular to the width direction of the vertical base.

[0014] Furthermore, an optical alignment device is detachably provided at the end of the gun mounting rod.

[0015] Furthermore, the clamping plate includes a front clamping plate and a rear clamping plate which are detachably fixed in thickness, and the inner side surfaces of the front clamping plate and the rear clamping plate are respectively provided with corresponding front ball grooves and rear ball grooves which are through grooves, wherein the front ball groove and the rear ball groove are combined to form a joint seat.

[0016] Furthermore, the number of the servo electric push rods is four.

[0017] Furthermore, the base portion is provided with a support platform extending to below the clamping plate or the gun mounting rod and forming an elastic support.

[0018] The present invention also provides a control method, which is applied to the above-mentioned charging gun plugging and pulling force testing device, comprising:

[0019] S1, controlling all the servo electric push rods to synchronously extend forward to a first preset length, and recording the driving force of each of the servo electric push rods;

[0020] S2, controlling all the servo electric push rods to synchronously retract to a first preset length, and recording the driving force of each of the servo electric push rods;

[0021] S3, repeating step S1 and step S2 for a first preset number of times;

[0022] S4. Control the two servo electric push rods corresponding in the circumferential direction to perform telescopic action steps that are opposite and within the range of the second preset length, and the remaining servo electric push rods extend forward by the first preset length synchronously;

[0023] S5. Control the two servo electric push rods corresponding in the circumferential direction to perform telescopic action steps that are opposite and within the range of the second preset length, and the remaining servo electric push rods retract backward by the first preset length synchronously;

[0024] S6. Repeat steps S4 and S5 for the second preset number of times.

[0025] Further, after the step of S3 includes:

[0026] S7. Control the two servo electric push rods corresponding in the circumferential direction to perform driving actions that are opposite and at the third preset length, and the remaining servo electric push rods extend forward by the first preset length synchronously;

[0027] S8. Control the two servo electric push rods corresponding in the circumferential direction to perform driving actions that are opposite and at the third preset length, and the remaining servo electric push rods retract backward by the first preset length synchronously;

[0028] S9. Repeat steps S7 and S8 for the third preset number of times.

[0029] Further, before the step of S1 includes:

[0030] S0. Control the output end of the rotating working part to rotate a preset angle.

[0031] Further, the base part includes a vertical base, a horizontal base, and a vertical driving member. The vertical driving member drives the horizontal base to move in the vertical direction. An installation platform is provided on the horizontal base, and a horizontal driving member is provided corresponding to the installation platform to drive the installation platform in the width direction of the vertical base. The output end of the rotating working part is perpendicular to the width direction of the vertical base. Before the step of S1 includes:

[0032] Control the vertical driving member and the horizontal driving member to drive the gun mounting rod to a preset position.

[0033] The charging gun insertion and extraction force testing device and control method provided by the present invention have a turntable installed at the output end of a rotating working part. A plurality of servo electric push rods are installed on the turntable. A clamping disk is provided with joint seats corresponding to the plurality of servo electric push rods. A spherical joint structure extends into and is restricted by the joint seats to form a torsional fit. While various artificial insertion and extraction actions can be simulated through the operation adjustment of the servo electric push rods, the data obtained by the servo electric push rods can be comprehensively calculated to obtain the value of the insertion and extraction force, so as to evaluate the working conditions of the charging gun and the charging interface. Moreover, the above monitoring of the insertion and extraction force is real-time, and thus a complete life performance curve can be formed. When the rotating working part is operating, the rotation angle of the gun mounting rod can be adjusted, so as to simulate the situation where there is a small circumferential angle alignment error between the charging gun and the charging interface. Brief Description of the Drawings

[0034] Figure 1 is a schematic diagram of the charging gun insertion and extraction force testing device according to the first embodiment of the present invention;

[0035] Figure 2 is Figure 1 a partial enlarged view in;

[0036] Figure 3 is a combined sectional view of the clamping disk part and the servo electric push rod in the charging gun insertion and extraction force testing device according to the first embodiment of the present invention;

[0037] Figure 4 is a schematic diagram of the clamping disk in the charging gun insertion and extraction force testing device according to the first embodiment of the present invention;

[0038] Figure 5 is a sectional view of the clamping disk part in the charging gun insertion and extraction force testing device according to the first embodiment of the present invention;

[0039] Figure 6 is a schematic diagram of the charging gun insertion and extraction force testing device according to the first embodiment of the present invention performing a parallel pushing action;

[0040] Figure 7 is a schematic diagram of the charging gun insertion and extraction force testing device according to the first embodiment of the present invention performing a shaking action (the first swinging direction);

[0041] Figure 8 is a schematic diagram of the charging gun insertion and extraction force testing device according to the first embodiment of the present invention performing a shaking action (the second swinging direction).

[0042] The realization, functional features and advantages of the purpose of the present invention will be further described with reference to the embodiments and the drawings. Detailed Embodiments

[0043] It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0044] Those skilled in the art will appreciate that, unless expressly stated otherwise, the singular forms "a", "an", "said", "above", and "the" used herein may also include plural forms. It should be further understood that the term "comprising" used in the specification of the present invention refers to the presence of the features, integers, steps, operations, elements, units, modules, and / or components, but does not exclude the presence or addition of one or more other features, integers, steps, operations, elements, units, modules, components, and / or groups thereof. It should be understood that when we refer to an element as being "connected" or "coupled" to another element, it may be directly connected or coupled to the other element, or there may be intermediate elements. In addition, the "connection" or "coupling" used herein may include wireless connection or wireless coupling. The term "and / or" used herein includes all or any unit and all combinations of one or more associated listed items.

[0045] Those skilled in the art will understand that, unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meaning as those generally understood by those skilled in the art in the field to which the present invention belongs. It should also be understood that terms such as those defined in common dictionaries should be understood to have meanings consistent with the meanings in the context of the prior art, and will not be interpreted with idealized or overly formal meanings unless specifically defined as here.

[0046] Reference Figures 1 to 8 In one embodiment of the present invention, a charging gun plugging and pulling force testing device includes:

[0047] Base part;

[0048] A rotating working part is installed on the base part, and the output end of the rotating working part is arranged horizontally;

[0049] A rotating disk, mounted at the output end of the rotating working part;

[0050] The plug-in drive unit includes at least four servo electric push rods arranged around the turntable on a side away from the rotating working unit, and the output ends of the servo electric push rods are end-jointed ball structures;

[0051] The clamping plate is provided with joint seats corresponding to the plurality of servo electric push rods, and the joint ball structure extends into and is restricted to the joint seat to form a torsional fit;

[0052] A gun mounting rod, mounted on a side of the clamping plate away from the plug-in drive unit, and used to fix an external charging gun, wherein when the charging gun is mounted on the gun mounting rod, the working end of the charging gun is parallel to the thickness direction of the clamping plate and corresponds to the center position;

[0053] The processing center controls the operations of the rotating working part and the plugging and unplugging driving part.

[0054] In the prior art, there is currently no plugging and unplugging force testing device that simulates manual operation in the field of charging guns. In order to be closer to the normal use state, the plugging and unplugging life test of the charging gun often uses manual operation at present, which is inefficient and burdensome for the staff. Especially, the state changes cannot be monitored, and only periodic inspections can be carried out.

[0055] In the present invention, the plugging and unplugging force testing device for the charging gun is used to simulate the plugging and unplugging actions of a human and monitor the plugging and unplugging force.

[0056] The base part serves as the basis for the entire plugging and unplugging force testing device of the charging gun and provides an installation basis for subsequent related parts. In some specific cases, the base part can form a two-dimensional drive in the vertical plane, thus providing greater convenience for the position of the subsequent gun mounting rod.

[0057] The rotating working part is installed on the base part. The output end of the rotating working part is horizontally arranged, which can ensure that the rotation plane of the output end of the rotating working part is in the vertical plane. The rotating working part can be driven by a servo motor and achieve precise angle control and large torque output through a reduction motor.

[0058] The turntable is installed at the output end of the rotating working part. When the rotating working part operates, its output end drives the turntable to rotate. The turntable is the installation basis for the subsequent plugging and unplugging driving part.

[0059] The plugging and unplugging driving part includes at least 4 servo electric push rods arranged around the side of the turntable facing away from the rotating working part, and the end of the output end of the servo electric push rod is a spherical joint structure. The plugging and unplugging actions of the charging gun are provided through the operation of the servo electric push rods, and the simulation of various manual operations is achieved through the asynchronous control between different servo electric push rods.

[0060] The clamping plate is provided with joint seats corresponding to a plurality of servo electric push rods. The spherical joint structure extends into and is restricted by the joint seats to form a twisting fit. Through the setting of the joint seats on the clamping plate, a connection can be formed with the servo electric push rods. When the servo electric push rods extend and retract, the clamping plate will have corresponding actions. For example, when all the servo electric push rods extend synchronously, the action of smoothly pushing the clamping plate forward can be completed; specifically, when two servo electric push rods corresponding in the circumferential direction act asynchronously and the remaining servo electric push rods retract synchronously, the action of swinging and unplugging can be simulated. While simulating various plugging and unplugging actions, the data obtained by the servo electric push rods can be comprehensively calculated to obtain the value of the plugging and unplugging force, so as to evaluate the working condition of the charging gun and the charging interface. Moreover, the above monitoring of the plugging and unplugging force is real-time, and thus a complete life performance curve can be formed.

[0061] The gun mounting rod is mounted on the side of the clamping disc facing away from the plugging and unplugging driving part and is used to fix an external charging gun. The specific form of the gun mounting rod can be diverse, specifically subject to the fixation of the charging gun. For example, the charging gun is fixed by a clamp matching the charging gun. The clamp is provided with a position for a fixing hole. The gun mounting rod is a rod-shaped structure, and the gun mounting rod is connected to the clamp by screws.

[0062] It should be noted that when the charging gun is mounted on the gun mounting rod, the working end of the charging gun is parallel to the thickness direction of the clamping disc. Then, the working end of the charging gun will not deflect irregularly along with the work of the rotating working part. The working end of the charging gun corresponds to the central position. Then, the working end of the charging gun will not deviate greatly in position along with the work of the rotating working part.

[0063] The processing center controls the work of the rotating working part and the plugging and unplugging driving part. The processing center can be a single-chip microcomputer or a microcomputer, and the rotation of the rotating working part and the telescoping of the plugging and unplugging driving part are controlled through a program.

[0064] Taking the example that four servo electric push rods are arranged at intervals of 90 degrees in the circumferential direction:

[0065] During the docking process, when all the servo electric push rods complete consistent actions synchronously, the parallel pushing action of the charging gun can be simulated; when two circumferentially corresponding servo electric push rods act asynchronously (push and pull repeatedly respectively), and the remaining servo electric push rods extend synchronously, the swaying docking action of the charging gun can be simulated; when two circumferentially corresponding servo electric push rods act asynchronously (perform one push and one pull action), the docking action of the charging gun at an inclined angle can be simulated (after being combined with the charging interface, the driving degrees of all servo electric push rods are made consistent).

[0066] During the separation process, when all the servo electric push rods complete consistent actions synchronously, the parallel separation action of the charging gun can be simulated; when two circumferentially corresponding servo electric push rods act asynchronously (push and pull repeatedly respectively), and the remaining servo electric push rods contract synchronously, the swinging separation action of the charging gun can be simulated.

[0067] It should be particularly noted that since the setting angles of the servo electric push rods are fixed, only the swinging, swaying and inclined angles at specific angles can be simulated, and the situation where there are minute angular abnormalities between the circumferences of the charging gun and the charging interface cannot be realized; when the work of the rotating working part is introduced, the angles of the servo electric push rods can be adjusted, so as to realize the simulation of minute circumferential angular alignment errors.

[0068] In summary, the turntable is installed at the output end of the rotating working part. A plurality of servo electric push rods are installed on the turntable. The clamping disc is provided with joint seats corresponding to the plurality of servo electric push rods. The spherical joint structure extends into and is restricted by the joint seats to form a twisting fit. While the working adjustment of the servo electric push rods can simulate various artificial plugging and unplugging actions, the data obtained by the servo electric push rods can be comprehensively calculated to obtain the value of the plugging and unplugging force, so as to evaluate the working conditions of the charging gun and the charging interface. Moreover, the above monitoring of the plugging and unplugging force is real-time, and thus a complete life performance curve can be formed. When the rotating working part is working, the rotation angle of the gun mounting rod can be adjusted, so as to simulate the situation where there is a small circumferential angle alignment error between the charging gun and the charging interface.

[0069] Referring to Figures 1 to 2 , in one embodiment, the base part includes a vertical base, a horizontal base and a vertical driving member. The vertical driving member drives the horizontal base to move in the vertical direction. An installation platform is arranged on the horizontal base. A horizontal driving member is correspondingly arranged for the installation platform to drive the installation platform in the width direction of the vertical base. The output end of the rotating working part is perpendicular to the width direction of the vertical base.

[0070] In this embodiment, a vertical driving member is correspondingly arranged for the horizontal base, so that the horizontal base can change its height under the operation of the vertical driving member. The operation of the vertical driving member is controlled by the processing center. The vertical driving member is preferably a precision linear driving system, so that the height of the horizontal base can be accurately controlled. When the horizontal driving member is working, the installation platform slides on the horizontal base, and the sliding direction is the same as the width direction of the vertical base, that is, through the structural limitation of the base part, the installation platform can complete the position changes in the up and down and left and right directions. The operations of the horizontal driving member and the vertical driving member are controlled by the processing center. Through the two-dimensional driving of the installation platform), two functions can be achieved. First, through the position adjustment of the installation platform, the alignment process between the gun mounting rod and the charging interface can be realized, providing a position alignment basis for the start of the test; second, it can provide the situation where the working end of the charging gun is parallel to the charging interface but the position is slightly offset.

[0071] In one embodiment, an optical alignment device is detachably arranged at the end of the gun mounting rod.

[0072] In this embodiment, the setting of the optical alignment device can provide a basis for the position of the charging gun. For example, when using the natural contact between the charging gun and the charging interface to adjust the work of the base part, it is necessary to repeatedly control the work of the plugging and unplugging driving part, thus increasing the complexity of the whole process. However, the optical alignment device can guide whether the position of the gun mounting rod is normal. For example, the optical alignment device is a laser generator that emits laser of a specific shape. Through the position relationship between the laser spot and the charging interface, it can be known whether the position of the gun mounting rod is correct.

[0073] Reference Figures 3 to 5 , in one embodiment, the clamping disc includes a front clamping disc and a rear clamping disc that are detachably fixed in thickness. A corresponding front ball groove and a rear ball groove that is a through groove are respectively provided on the inner side surfaces of the front clamping disc and the rear clamping disc. Wherein, when the front ball groove and the rear ball groove are combined to form a joint seat.

[0074] In this embodiment, the shape of the clamping disc is restricted, which facilitates the formation of the joint seat and the installation of the output end of the servo electric push rod. Specifically, the joint ball structure of the servo electric push rod is clamped between the front clamping disc and the rear clamping disc, and the output end of the servo electric push rod passes through the rear ball groove.

[0075] Reference Figure 1 , in one embodiment, the number of the servo electric push rods is four.

[0076] In this embodiment, a suitable number of servo electric push rods is given, and in the case of a simple structure, it can meet the simulation of various working states. In other embodiments, it can also be six or eight, etc.

[0077] Reference Figure 1 , in one embodiment, the base portion is provided with a support platform that extends below the clamping disc or the gun mounting rod and forms an elastic support.

[0078] In this embodiment, since the weights of the clamping disc, the gun mounting rod, and the charging gun are all applied to the plugging and unplugging driving portion, when the plugging and unplugging driving portion is prone to deformation, it will also interfere with the driving force feedback of the servo electric push rod. Since the direction of the gun mounting rod will change to a certain extent with the operation of the plugging and unplugging driving portion, the supporting effect of the support platform needs to be elastic. For example, the support platform includes a support rod and a spring support plate provided at the end of the support rod, so that when the direction of the gun mounting rod changes to a certain extent, the support platform can always have an excellent supporting effect.

[0079] The present invention also provides a control method, which is applied to the above-mentioned charging gun plugging force test device, and includes

[0080] S1. Control all the servo electric push rods to extend forward synchronously by a first preset length, and record the driving force of each servo electric push rod;

[0081] S2. Control all the servo electric push rods to retract backward synchronously by a first preset length, and record the driving force of each servo electric push rod;

[0082] S3. Repeat step S1 and step S2 for a first preset number of times;

[0083] S4. Control the two servo electric pushrods corresponding in the circumferential direction to perform telescopic action steps in opposite directions and within the range of the second preset length, and the remaining servo electric pushrods extend forward by the first preset length synchronously;

[0084] S5. Control the two servo electric pushrods corresponding in the circumferential direction to perform telescopic action steps in opposite directions and within the range of the second preset length, and the remaining servo electric pushrods retract backward by the first preset length synchronously;

[0085] S6. Repeat steps S4 and S5 for the second preset number of times.

[0086] In this embodiment, in steps S1 to S3, the charging gun simulation operations of performing parallel advancement and withdrawal are the same. The smaller the first preset length and the faster the execution speed (telescopic speed), the higher the test efficiency, but the actions of plugging and unplugging need to be completed. In steps S4 to S6, when the two servo electric pushrods corresponding in the circumferential direction act asynchronously (push and pull repeatedly respectively), and the remaining servo electric pushrods extend forward and retract backward synchronously, the shaking docking action and separation action of the charging gun can be simulated. The value of the second preset length and the execution speed determine the shaking state.

[0087] In one embodiment, after step S3, it includes:

[0088] S7. Control the two servo electric pushrods corresponding in the circumferential direction to perform driving actions in opposite directions and with a third preset length, and the remaining servo electric pushrods extend forward by the first preset length synchronously;

[0089] S8. Control the two servo electric pushrods corresponding in the circumferential direction to perform driving actions in opposite directions and with a third preset length, and the remaining servo electric pushrods retract backward by the first preset length synchronously;

[0090] S9. Repeat steps S7 and S8 for the third preset number of times.

[0091] In this embodiment, when the two servo electric pushrods corresponding in the circumferential direction act asynchronously (perform a push and a pull action), the docking and separation actions of the charging gun can be simulated at an inclined angle (the driving degrees of all servo electric pushrods are unified after being combined with the charging interface). The above simulation is mainly for the operating habits of users at different heights.

[0092] In one embodiment, before step S1, it includes:

[0093] S0. Control the output end of the rotating working part to rotate a preset angle.

[0094] In this embodiment, since the setting angle of the servo electric push rod is fixed, only the swinging, rocking, and tilting angles at specific angles can be simulated, and it is impossible to achieve the situation where there are small angular abnormalities in the circumferences of the charging gun and the charging interface; when the operation of the rotating working part is introduced, the angle of the servo electric push rod can be adjusted, so as to simulate the small alignment error in the circumferential angle. For example, the preset angle can be selected between -5 and 5 degrees.

[0095] In one embodiment, the base part includes a vertical base, a horizontal base, and a vertical driving part. The vertical driving part drives the horizontal base to move in the vertical direction. An installation platform is arranged on the horizontal base, and a horizontal driving part is arranged corresponding to the installation platform to drive the installation platform in the width direction of the vertical base. The output end of the rotating working part is perpendicular to the width direction of the vertical base. Before the step of S1, it includes:

[0096] Control the vertical driving part and the horizontal driving part to drive the gun mounting rod to a preset position.

[0097] In this embodiment, by controlling the operation of the vertical driving part and the horizontal driving part, the installation platform can complete the position changes in the up-down and left-right directions. The operations of the horizontal driving part and the vertical driving part are controlled by the processing center. Through the two-dimensional driving of the installation platform, two functions can be achieved. First, through the position adjustment of the installation platform, the alignment process between the gun mounting rod and the charging interface can be realized, providing a position alignment basis for the start of the test; second, it can provide the situation where the working end of the charging gun is parallel to the charging interface but slightly offset in position.

[0098] In summary, for the charging gun insertion and extraction force test device and control method provided by the present invention, the turntable is installed at the output end of the rotating working part, and a plurality of servo electric push rods are installed on the turntable. The clamping plate is provided with joint seats corresponding to the plurality of servo electric push rods, and the joint ball structure extends into and is restricted in the joint seats to form a twisting fit. While various artificial insertion and extraction actions can be simulated through the operation adjustment of the servo electric push rod, the numerical value of the insertion and extraction force can be obtained through comprehensive calculation of the data obtained by the servo electric push rod, so as to evaluate the working conditions of the charging gun and the charging interface. Moreover, the above monitoring of the insertion and extraction force is real-time, and thus a complete life performance curve can be formed; when the rotating working part operates, the rotation angle of the gun mounting rod can be adjusted, so as to simulate the small alignment error in the circumferential angle between the charging gun and the charging interface.

[0099] The above are only the preferred embodiments of the present invention, and do not limit the patent scope of the present invention accordingly. Any equivalent structure or equivalent process transformation made by using the content of the specification and drawings of the present invention, or directly or indirectly applied to other related technical fields, shall be included in the patent protection scope of the present invention by the same token.

Claims

1. A charging gun insertion and extraction force testing device, characterized in that Comprising: Base portion (100); Rotating working portion (200), mounted on the base portion (100), and the output end of the rotating working portion (200) is horizontally arranged; Rotating disc (300), mounted on the output end of the rotating working portion (200); Plugging and unplugging driving portion (400), including at least 4 servo electric push rods (410) circumferentially arranged on the side of the rotating disc (300) facing away from the rotating working portion (200), and the end of the output end of the servo electric push rod (410) is a joint ball structure (411); Clamping disc (500), with joint seats (510) corresponding to a plurality of the servo electric push rods (410), and the joint ball structure (411) extends into and is restricted by the joint seats to form a twisting fit; Gun mounting rod (600), mounted on the side of the clamping disc (500) facing away from the plugging and unplugging driving portion (400) for fixing an external charging gun (010), wherein when the charging gun (010) is mounted on the gun mounting rod (600), the working end of the charging gun (010) is parallel to the thickness direction of the clamping disc (500) and corresponds to the central position; Processing center, controlling the operations of the rotating working portion (200) and the plugging and unplugging driving portion (400); The clamping disc (500) includes a front clamping disc (500) and a rear clamping disc (500) that are detachably fixed in terms of thickness. The inner side surface of the front clamping disc (500) and the inner side surface of the rear clamping disc (500) are respectively provided with corresponding front ball grooves (511) and rear ball grooves (512) that are through grooves. Wherein, when the front ball grooves (511) and the rear ball grooves (512) are combined to form the joint seats (510).

2. The charging gun plugging and unplugging force testing device according to claim 1, wherein The base portion (100) includes a vertical base (110), a horizontal base (120), and a vertical driving member (130). The vertical driving member (130) drives the horizontal base (120) to move in the vertical direction. An installation platform (140) is provided on the horizontal base (120), and a horizontal driving member (150) is provided corresponding to the installation platform (140) to drive the installation platform (140) in the width direction of the vertical base (110). The output end of the rotating working portion (200) is perpendicular to the width direction of the vertical base (110).

3. The charging gun plugging and unplugging force testing device according to claim 1, characterized in that, An optical alignment device is detachably provided at the end of the gun mounting rod (600).

4. The charging gun plugging and unplugging force testing device according to claim 1, wherein The number of the servo electric push rods (410) is four.

5. The charging gun plugging and unplugging force testing device according to claim 1, characterized in that The base portion (100) is provided with a support platform (700) that extends below the clamping disc (500) or the gun mounting rod (600) and forms an elastic support.

6. A control method, applied to the charging gun insertion and extraction force test device described in any one of claims 1 to 4, characterized in that, Comprising S1. Control all the servo electric push rods (410) to synchronously extend forward by a first preset length, and record the driving force of each servo electric push rod (410); S2. Control all the servo electric push rods (410) to synchronously retract by a first preset length, and record the driving force of each servo electric push rod (410); S3. Repeat step S1 and step S2 for a first preset number of times; S4. Control two of the servo electric push rods (410) corresponding in the circumferential direction to perform telescopic action steps that are opposite and within a second preset length, and the remaining servo electric push rods (410) extend forward synchronously by a first preset length; S5. Control two of the servo electric push rods (410) corresponding in the circumferential direction to perform telescopic action steps that are opposite and within a second preset length, and the remaining servo electric push rods (410) retract backward synchronously by a first preset length; S6. Repeat step S4 and step S5 for a second preset number of times.

7. The control method according to claim 6, characterized in that After the step of S3, it includes: S7. Control two of the servo electric push rods (410) corresponding in the circumferential direction to perform driving actions that are opposite and at a third preset length, and the remaining servo electric push rods (410) extend forward synchronously by a first preset length; S8. Control two of the servo electric push rods (410) corresponding in the circumferential direction to perform driving actions that are opposite and at a third preset length, and the remaining servo electric push rods (410) retract backward synchronously by a first preset length; S9. Repeat step S7 and step S8 for a third preset number of times.

8. The control method according to claim 6, wherein Before the step of S1, it includes: S0. Control the output end of the rotating working part (200) to rotate a preset angle.

9. The control method according to claim 6, 7 or 8, characterized in that, The base part (100) includes a vertical base (110), a horizontal base (120), and a vertical driving part (130). The vertical driving part (130) drives the horizontal base (120) to move in the vertical direction. An installation platform (140) is provided on the horizontal base (120). A horizontal driving part (150) is provided corresponding to the installation platform (140) to drive the installation platform (140) in the width direction of the vertical base (110). The output end of the rotating working part (200) is perpendicular to the width direction of the vertical base (110). Before the step of S1, it includes: Control the vertical driving part (130) and the horizontal driving part (150) to drive the gun mounting rod (600) to a preset position.

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