Power battery connecting piece press-fitting device and method

Abstract

The application provides a power battery connecting piece press fitting device and method. The power battery connecting piece press fitting device comprises a feeding mechanism, a driving mechanism and a press fitting head. The feeding mechanism is used for feeding the connecting piece. The press fitting head comprises a press fitting surface. The driving mechanism is used for driving the press fitting head to suck the connecting piece from the feeding mechanism, and enabling the press fitting head to press two ends of the connecting piece into mounting holes of a battery module and be buckled with the battery module in a first posture and a second posture respectively. In the first posture and the second posture, the press fitting surface is inclined to the horizontal plane. In the first posture, a first side wall of the press fitting surface is close to the mounting hole, and a second side wall is away from the mounting hole. In the second posture, the first side wall of the press fitting surface is away from the mounting hole, and the second side wall is close to the mounting hole. The application can realize automatic press fitting of the connecting piece, solve the problems of high labor intensity, low efficiency and high labor cost in traditional manual press fitting, ensure the press fitting precision, reduce the breakage rate of the connecting piece and improve the press fitting quality.

Description

Technical Field

[0001] This invention relates to the field of power battery pack technology, and in particular to a power battery connector pressing equipment and method. Background Technology

[0002] Current societal development faces two major challenges: energy shortages and environmental pollution. Against this backdrop, new energy vehicles have rapidly emerged as a rising star in the automotive industry. Compared to traditional gasoline-powered vehicles, new energy vehicles mitigate the severity of these two problems to some extent. The power battery, as a core component of new energy vehicles, plays a crucial role in their performance.

[0003] In the power battery pack pressing process, the CCS (Cells Contact System) structure consists of an electrical isolation plate, an FPC (Flexible Printed Circuit), connecting pieces, and battery cells. The number of battery cells determines the number of connecting pieces; the more battery cells, the more connecting pieces are required during pressing. In existing technologies, the connecting pieces in the power battery pack pressing process need to be manually pressed. The pressing process requires first inserting one end of the connecting piece into the fixing clip of the battery module mounting cavity, and then inserting the other end into the elastic clip of the battery module mounting cavity. This pressing process is cumbersome, resulting in high labor intensity, low efficiency, and a high risk of damage to the connecting pieces, affecting the pressing quality. Summary of the Invention

[0004] In view of this, the present invention provides a power battery connector pressing device and method to at least solve the problems of existing power battery connectors requiring manual pressing, and the pressing process being relatively cumbersome, resulting in low pressing efficiency and high labor costs.

[0005] To achieve the above objectives, the technical solution of the present invention is implemented as follows:

[0006] This invention discloses a power battery connector pressing device, including a feeding mechanism, a driving mechanism, and a pressing head;

[0007] The feeding mechanism is used to supply the connecting pieces required for the battery module;

[0008] The pressing head includes a pressing surface for contacting and pressing the connecting piece, the pressing surface having a first sidewall and a second sidewall disposed opposite to each other;

[0009] The driving mechanism is connected with the pressing head and is used to drive the pressing head to suck the connecting piece from the feeding mechanism and to make the pressing head press two ends of the connecting piece into the mounting hole of the battery module and be buckled with the battery module in the first attitude and the second attitude respectively;

[0010] In the first attitude and the second attitude, the pressing surface of the pressing head is inclined to the horizontal plane, and in the first attitude, the first side wall is close to the mounting hole and the second side wall is away from the mounting hole, and in the second attitude, the first side wall is away from the mounting hole and the second side wall is close to the mounting hole.

[0011] Optionally, the driving mechanism comprises a rotating assembly.

[0012] The rotating assembly is used to drive the pressing head to rotate 180° in a first direction, so as to switch the pressing head from the first attitude to the second attitude.

[0013] Optionally, the driving mechanism comprises a lifting assembly.

[0014] The lifting assembly is used to drive the pressing head to rotate 60°-120° in a second direction, so as to switch the pressing head from the first attitude to the second attitude.

[0015] Optionally, in the first attitude or the second attitude, the included angle between the pressing surface of the pressing head and the horizontal plane is 30°-60°.

[0016] Optionally, the driving mechanism comprises an adjusting assembly.

[0017] The adjusting assembly is used to adjust the movement of the pressing head towards the direction close to or away from the feeding mechanism, so as to make the pressing surface abut against the connecting piece.

[0018] Optionally, the pressing head is a vacuum suction cup, and the driving mechanism comprises a vacuum electromagnetic valve.

[0019] The vacuum electromagnetic valve is used to control the vacuum suction cup to suck or release the connecting piece.

[0020] Optionally, a detection device is further included.

[0021] The detection device is connected with the vacuum electromagnetic valve, and the detection device is used to detect whether the vacuum suction cup successfully sucks or releases the connecting piece, and to feed back failure information to the vacuum electromagnetic valve in the case that the vacuum suction cup does not successfully suck or release the connecting piece.

[0022] The application further discloses a power battery connecting piece press-fitting method, characterized by being applied to the power battery connecting piece press-fitting device, and the method comprises the following steps of:

[0023] controlling the press-fitting head to suck the connecting piece from the feeding mechanism;

[0024] adjusting the press-fitting head to be in the first posture;

[0025] controlling the press-fitting head to press one end of the connecting piece into the mounting hole of the battery module and be buckled with the battery module;

[0026] adjusting the press-fitting head to be switched to the second posture;

[0027] controlling the press-fitting head to press the other end of the connecting piece into the mounting hole and be buckled with the battery module.

[0028] Optionally, the step of adjusting the press-fitting head to be switched to the second posture comprises the following steps of:

[0029] rotating the press-fitting head by 180 degrees in a first direction, or rotating the press-fitting head by 60-120 degrees in a second direction.

[0030] Optionally, during the process of controlling the press-fitting head to suck the connecting piece from the feeding mechanism, the method further comprises the following steps of:

[0031] adjusting the press-fitting head to move towards or away from the feeding mechanism, so that the press-fitting head abuts against the connecting piece.

[0032] Compared with the prior art, the power battery connecting piece press-fitting device and method have the following advantages:

[0033] The power battery connecting piece press fitting equipment presses the connecting piece through the press fitting face on the press fitting head, the connecting piece is adsorbed on the press fitting face and fully abuts against the surface of the press fitting face, when the press fitting head is in the first attitude, the press fitting face is inclined to the horizontal plane, and the first side wall of the press fitting face is close to the mounting hole, and the second side wall is away from the mounting hole, the vertical distance between the press fitting face along the inclined direction to the horizontal plane gradually increases, the press fitting face in the attitude inclines the connecting piece into the battery module mounting hole, so that one end of the connecting piece is buckled with the fixed buckle end of the battery module mounting hole, after buckling is completed, the press fitting head is switched to the second attitude, the press fitting face in the second attitude is also inclined to the horizontal plane, but the first side wall of the press fitting face is away from the mounting hole, and the second side wall is close to the mounting hole, and the vertical distance between the press fitting face along the inclined direction to the horizontal plane gradually decreases, the end of the press fitting face close to the horizontal plane abuts against the connecting piece, and the other end of the connecting piece is pressed into the elastic buckle end of the battery module mounting hole and buckled, after buckling is completed, the connecting piece is horizontally clamped in the battery module mounting hole, so that the press fitting of the connecting piece is realized. BRIEF DESCRIPTION OF DRAWINGS

[0034] The accompanying drawings, which form a part of the present application, are intended to provide further understanding of the present application, and the illustrative embodiments of the present application and their description serve the purpose of explaining the present application. In the drawings:

[0035] Figure 1 is a schematic view of the power battery connecting piece press fitting equipment in the embodiment;

[0036] Figure 2 is a schematic view of the power battery connecting piece press fitting equipment in the embodiment;

[0037] Figure 3 is a schematic view of the power battery connecting piece press fitting equipment in the embodiment;

[0038] Figure 4 is another schematic view of the power battery connecting piece press fitting equipment in the embodiment;

[0039] Figure 5 is a schematic view of the power battery connecting piece press fitting equipment in the embodiment;

[0040] Figure 6is another schematic view of the power battery connecting piece press-fitting equipment press-fitting head in the first posture in the embodiment;

[0041] Figure 7 is a schematic view of the power battery connecting piece press-fitting equipment press-fitting head in the second posture in the embodiment;

[0042] Figure 8 is another schematic view of the power battery connecting piece press-fitting equipment press-fitting head in the second posture in the embodiment;

[0043] Figure 9 is a schematic view of the power battery connecting piece press-fitting equipment press-fitting head in the second posture in the embodiment;

[0044] Figure 10 is a schematic view of the power battery connecting piece press-fitting equipment press-fitting face and the horizontal plane angle range.

[0045] Explanation of reference signs:

[0046] 1-press-fitting head, 10-press-fitting face, 101-first side wall, 102-second side wall, 11-vacuum pipe, 12-vacuum pipe joint, 2-feeding disc, 21-supporting structure, 3-connecting piece, 4-mounting hole, 41-bottom surface, 51-motor, 52-rotary platform, 53-base, 61-lifting rod, 7-adjusting assembly, 8-vacuum electromagnetic valve. DETAILED DESCRIPTION

[0047] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are some of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of protection of the present application.

[0048] The terms "first", "second", and the like in the specification and claims of the present application are used to distinguish similar objects, and are not used to describe a specific order or sequence. It should be understood that the data used in this way can be interchanged under appropriate circumstances, so that the embodiments of the present application can be implemented in an order other than those illustrated or described herein, and the objects distinguished by "first", "second", etc. are generally a category, and are not limited to the number of objects, for example, the first object can be one or more. In addition, "and / or" in the specification and claims indicates at least one of the connected objects, and the character " / ", generally indicates that the front and rear associated objects are in an "or" relationship.

[0049] It is to be understood that the terminology "one embodiment", "an embodiment", "another embodiment" or "one specific embodiment" as used herein in relation to an embodiment, means that a particular feature, structure, or characteristic described is included in at least one embodiment of the application. Therefore, appearances of these phrases in various places throughout the specification are not necessarily all referring to the same embodiment. Furthermore, the particular features, structures, or characteristics can be combined in any suitable manner in one or more embodiments.

[0050] The power battery connecting piece press-fitting equipment and method provided by the application will be described in detail below by listing specific embodiments.

[0051] With reference to Figures 1 to 8 The power battery connecting piece press-fitting equipment provided by the embodiment of the application comprises a feeding mechanism, a driving mechanism and a press-fitting head 1; the feeding mechanism is used to feed the connecting piece 3 required by a battery module; the press-fitting head 1 comprises a press-fitting surface 10 used to contact and press-fit the connecting piece 3, the press-fitting surface 10 has a first side wall 101 and a second side wall 102 arranged oppositely; the driving mechanism is connected with the press-fitting head 1 and is used to drive the press-fitting head 1 to suck the connecting piece 3 from the feeding mechanism and make the press-fitting head 1 press the connecting piece 3 into a mounting hole 4 of the battery module and buckle with the battery module in a first attitude and a second attitude respectively; in the case of the first attitude and the second attitude of the press-fitting head 1, the press-fitting surface 10 is inclined to the horizontal plane, and in the first attitude, the first side wall 101 is close to the mounting hole, and the second side wall 102 is away from the mounting hole, and in the second attitude, the first side wall 101 is away from the mounting hole, and the second side wall 102 is close to the mounting hole.

[0052] Specifically, as Figure 2As shown, the feeding mechanism is used to supply the connecting sheet 3 required by the battery module. In a specific embodiment, the feeding mechanism can include a feeding tray 2 used to hold the connecting sheet 3 required by the battery module. Each feeding tray 2 can hold a plurality of connecting sheets 3. In order to avoid disordered holding of the plurality of connecting sheets 3 in the feeding tray 2, a plurality of array-arranged feeding grooves can be arranged on the feeding tray 2. A certain number of connecting sheets 3 can be stacked in each feeding groove, so as to realize the ordered placement of the plurality of connecting sheets 3 in the feeding tray 2. Preferably, each feeding groove can hold 20 to 25 connecting sheets 3, which can not only ensure the sufficient capacity of the feeding tray 2, but also avoid the connecting sheets 3 being too thick to fall out and affecting the suction effect of the press-fitting head 1. Meanwhile, the spacing between the connecting sheet 3 and the edge of the feeding hole is about 0.05 mm, which can not only ensure the positioning effect of the feeding hole on the connecting sheet 3, but also facilitate the press-fitting head 1 to suck the connecting sheet 3, so as to avoid the phenomenon that the connecting sheet 3 is positioned too tightly to be successfully sucked by the press-fitting head 1. During the process of transferring the feeding tray 2 to the press-fitting equipment, the manual transfer by manpower or the automatic transfer by means of a mechanical hand can be adopted, and the specific selection can be freely made according to the production line, which is not limited in the embodiment.

[0053] In a more preferable embodiment, in order to facilitate the press-fitting head 1 to suck the connecting sheet 3 from the feeding tray 2, as shown, a supporting structure 21 can be arranged in the feeding tray 2. The connecting sheet 3 is inclinedly supported in the feeding groove of the feeding tray 2 by the supporting block, so as to facilitate the press-fitting head 1 to suck. Figure 2 Meanwhile, the feeding mechanism can include at least two tray placing areas for placing the feeding tray 2. When the feeding tray 2 in one of the tray placing areas is sent for replenishment, the press-fitting head 1 can suck the connecting sheet 3 from the feeding tray 2 in the other tray placing area, so as to ensure the continuous supply of the connecting sheet 3 and avoid the lack of material of the press-fitting equipment. A sensor such as a pressure sensor can be arranged under each tray placing area for detecting the total amount of the connecting sheet 3 in the feeding tray 2. A prompter can be arranged for prompting the personnel. When the amount of the connecting sheet 3 in the feeding tray 2 is detected to be small and the weight is light, the personnel is prompted in time to replenish the feeding tray 2.

[0054] The driving mechanism can be a mechanical hand with high degree of freedom. The mechanical hand is connected with the press-fitting head 1 and can drive the press-fitting head 1 to suck the connecting sheet 3 from the feeding tray 2. After the press-fitting head 1 sucks the connecting sheet 3 from the feeding tray 2, the driving mechanism continues to drive the press-fitting head 1 to move above the battery module, and then drives the press-fitting head 1 to press the sucked connecting sheet 3 into the mounting hole 4 of the battery module and buckle with the battery module. Among them, as shown, Figures 5 to 8As shown, the pressing head 1 is provided with a pressing surface 10 specially used for pressing the connecting piece 3, and the pressing surface 10 has a first side wall 101 and a second side wall 102 arranged oppositely. During the process that the pressing head 1 presses the connecting piece 3 into the battery module mounting hole 4, the pressing surface 10 abuts against the connecting piece 3, and other parts of the pressing surface 10 will not directly contact the connecting piece 3, so as to avoid damaging the connecting piece 3. Meanwhile, the pressing head 1 will perform pressing operation in the first attitude and the second attitude respectively. When the pressing head 1 is in the first attitude and the second attitude, the pressing surface 10 will be relatively inclined to the horizontal plane. Taking the bottom surface 41 of the battery module mounting hole 4 as a reference surface, the horizontal plane refers to a plane parallel to the reference surface, and a horizontal direction on the horizontal plane is indicated by the X direction in Figures 1 to 8 , for example. As shown in Figure 5 and Figure 6 , it is a schematic view of the pressing head 1 in the first attitude. In the first attitude, the first side wall 101 of the pressing surface 10 is relatively closer to the mounting hole 4, and the second side wall 102 is relatively farther away from the mounting hole 4. The vertical distance between the pressing surface 10 and the horizontal plane along the inclined direction (indicated by the arrow A direction in Figure 5 and Figure 6 ) gradually increases. As shown in Figure 7 and Figure 8 , it is a schematic view of the pressing head 1 in the second attitude. In the second attitude, the first side wall 101 of the pressing surface 10 is relatively farther away from the mounting hole 4, and the second side wall 102 is relatively closer to the mounting hole 4. The vertical distance between the pressing surface 10 and the horizontal plane along the inclined direction (indicated by the arrow B direction in Figure 7 and Figure 8 ) gradually decreases. Thus, the pressing equipment can tilt the two ends of the connecting piece 3 into the battery module mounting hole 4 and buckle with the battery module by changing the position between the pressing surface 10 and the horizontal plane. In addition, as shown in Figure 1 , in order to improve the pressing efficiency of the power battery connecting piece pressing equipment, the pressing equipment can include a plurality of pressing heads 1. During the pressing process, the plurality of pressing heads 1 perform pressing operation synchronously, which is neat and efficient, and effectively shortens the pressing operation cycle.

[0055] Figure 3 and Figure 4 , and Figures 5 to 8is a schematic diagram of the pressing process of the power battery connecting piece pressing equipment, as shown in the figure, the specific process of the pressing head 1 pressing the connecting piece 3 is as follows: the pressing head 1 first sucks the connecting piece 3 from the feeding tray 2, moves to the upper side of the battery module after the sucking is completed, then keeps in the first posture and moves towards the direction close to the installation hole 4 of the battery module, uses the pressing surface 10 to first tilt the one end of the connecting piece 3 into the fixed buckle end of the installation hole 4, after being pressed in, the pressing head 1 continues to move to the upper side of the battery module, switches to the second posture and continues to move towards the direction close to the installation hole 4 of the battery module, uses the pressing surface 10 to press the other end of the connecting piece 3 into the elastic buckle end of the installation hole 4, after the two pressing processes are completed, the connecting piece 3 is horizontally fixed in the installation hole 4 and buckled with the battery module, so that the automatic pressing of the connecting piece 3 is realized.

[0056] The power battery connecting piece pressing equipment of the present application presses the connecting piece 3 through the pressing surface 10 on the pressing head 1, the connecting piece 3 is adsorbed on the pressing surface 10 and fully abuts against the surface of the pressing surface 10, when the pressing head 1 is in the first posture, the pressing surface 10 is inclined to the horizontal plane, the first side wall 101 of the pressing surface 10 is close to the installation hole, the second side wall 102 is away from the installation hole, the vertical distance between the pressing surface 10 along its inclined direction to the horizontal plane gradually increases, in this posture, the pressing surface 10 tilts the connecting piece 3 into the installation hole 4 of the battery module, so that one end of the connecting piece 3 is buckled with the fixed buckle end of the installation hole 4 of the battery module, after the buckling is completed, the pressing head 1 will switch to the second posture, in the second posture, the pressing surface 10 is also inclined to the horizontal plane, but the first side wall 101 of the pressing surface 10 is away from the installation hole, the second side wall 102 is close to the installation hole, the vertical distance between the pressing surface 10 along its inclined direction to the horizontal plane gradually decreases, in this posture, the end of the pressing surface 10 close to the horizontal plane will abut against the connecting piece 3, so as to press the other end of the connecting piece 3 into the elastic buckle end of the installation hole 4 of the battery module and buckle with it, after the buckling is completed, the connecting piece 3 will be horizontally clamped in the installation hole 4 of the battery module, thus the pressing and fixing of the connecting piece 3 are realized. The power battery connecting piece pressing equipment of the present application can first automatically press the connecting piece 3 into the fixed buckle end of the installation hole 4 of the battery module for buckling, and then automatically press the connecting piece 3 into the elastic buckle end of the installation hole 4 of the battery module for buckling, the pressing process is simple and efficient, solves the problems of high labor intensity, low efficiency, high labor cost in the traditional manual pressing process, and the automatic pressing by the pressing equipment can ensure the pressing precision and effectively reduce the breakage rate of the connecting piece 3, so as to improve the pressing quality.

[0057] Optionally, referring to Figure 1 , the driving mechanism comprises a rotating assembly; the rotating assembly is used to drive the pressing head 1 to rotate 180° along the first direction, so as to switch the pressing head 1 from the first posture to the second posture.

[0058] Specifically, the driving mechanism comprises a rotating assembly, which can drive the press-fitting head 1 to rotate in a first direction, i.e., a direction parallel to the horizontal plane. In specific embodiments, the rotating assembly can drive the press-fitting head 1 to rotate clockwise or counterclockwise in a direction parallel to the horizontal plane, so as to switch the press-fitting head 1 from the first posture to the second posture and change the tilting direction of the press-fitting surface 10. In the specific process of press-fitting the connecting piece 3, the press-fitting head 1 is first in the first posture, and the press-fitting surface 10 presses one end of the connecting piece 3 into the fixed buckle end of the battery module mounting hole 4 and buckles with the fixed buckle end. Then, the rotating assembly drives the press-fitting head 1 to rotate 180° in a direction parallel to the horizontal plane, so as to switch the press-fitting head 1 to the second posture, change the tilting direction of the press-fitting surface 10, and then press the other end of the connecting piece 3 into the elastic buckle end of the battery module mounting hole 4 and buckle with the elastic buckle end. It should be noted that the angle of rotation of the press-fitting head 1 driven by the rotating assembly is determined based on the shape and structure of the connecting piece 3. In general, the connecting piece 3 has a square structure or a long strip structure, and the two ends of the connecting piece 3 are opposite ends. Therefore, the rotating assembly needs to drive the press-fitting head 1 to rotate 180° in the first direction, so as to ensure that the press-fitting head 1 can smoothly press the two ends of the connecting piece 3 into the mounting hole 4 and buckle with the battery module.

[0059] In one embodiment, as shown in Figure 1 , the rotating assembly comprises a motor 51 and a rotating platform 52. The rotating platform 52 is a rigid rotatable structure, and a U-shaped base 53 is fixedly connected to one side of the rotating platform 52 close to the battery module mounting hole 4. The inner side of the U-shaped base 53 is provided with a plurality of mounting positions, each of which can mount and fix one press-fitting head 1. The motor 51 drives the rotating platform 52 to rotate in the first direction, and the rotating platform 52 drives the base 53 to rotate synchronously, and then drives the press-fitting head 1 mounted on the base 53 to rotate synchronously, so as to realize the switching between the first posture and the second posture of the press-fitting head 1.

[0060] Alternatively, referring to Figure 1 and 9 , the driving mechanism comprises a lifting assembly; the lifting assembly is used to drive the press-fitting head 1 to rotate 60°-120° in a second direction, so as to switch the press-fitting head 1 from the first posture to the second posture.

[0061] Specifically, the driving mechanism comprises a lifting assembly, which can drive the press-fitting head 1 to rotate in a second direction, i.e., a direction perpendicular to the horizontal plane, as shown in Figure 1 and Figure 9Y direction, i.e. the Y direction is perpendicular to the X direction. The lifting assembly can drive the press head 1 to move along the Y direction, so as to switch the press head 1 from the first posture to the second posture. In the specific process of pressing the connecting piece 3, the press head 1 is first in the first posture, and the pressing surface 10 presses one end of the connecting piece 3 into the fixed buckle end of the battery module and buckles with the fixed buckle end. Then, the lifting assembly drives the press head 1 to rotate 60°-120° along the Y direction, so that the press head 1 is switched to the second posture, the inclination direction of the pressing surface 10 is changed, and then the end of the pressing surface 10 close to the horizontal plane presses the other end of the connecting piece 3 into the elastic buckle end of the battery module mounting hole 4 and buckles with the elastic buckle end. It should be noted that in the process of driving the connecting piece 3 to rotate along the second direction, the opposite sides of the press head 1 rotate reversely, one side rotates 60°-120° along the direction close to the battery module mounting hole 4, and the other side rotates 60°-120° along the direction away from the battery module mounting hole 4, and the angles of rotation of the opposite sides are the same, thereby realizing the switching of the first posture and the second posture of the press head 1.

[0062] In an embodiment, as shown in Figure 9 , the lifting assembly includes two lifting rods 61, which can be telescopic rods or mechanical rods connected with telescopic cylinders. The two lifting rods 61 are fixedly connected to the opposite sides of the press head 1, and drive the opposite sides of the press head 1 to rotate along the direction close to or away from the battery module mounting hole 4 through telescopic movement. One of the two lifting rods 61 drives one side of the press head 1 to rotate along the direction close to the battery module mounting hole 4, and the other lifting rod 61 drives the opposite side of the press head 1 to rotate along the direction away from the battery module mounting hole 4. The angles of rotation of the two sides are the same, thereby realizing the switching between the first posture and the second posture of the press head 1.

[0063] Optionally, referring to Figure 10 , the included angle between the pressing surface 10 and the horizontal plane in the first posture or the second posture of the press head 1 is 30°-60°.

[0064] Specifically, as shown in Figure 10As shown, the included angle a between the pressing surface 10 and the horizontal plane is 30°-60° in the first or second posture of the pressing head 1. If the included angle between the pressing surface 10 and the horizontal plane is too large, the connecting piece 3 adsorbed by the pressing surface 10 may fall off, or the connecting piece 3 may be damaged in the process of being pressed into the mounting hole 4 by the pressing surface 10, affecting the pressing effect. If the included angle between the pressing surface 10 and the horizontal plane is too small, the connecting piece 3 may not be successfully pressed into the mounting hole 4, affecting the pressing efficiency. Therefore, the included angle a between the pressing surface 10 and the horizontal plane is set to 30°-60°, and preferably, the included angle between the pressing surface 10 and the horizontal plane is 45°. In the above angle and angle range, the above conditions can be effectively avoided, the connecting piece 3 can be successfully pressed, and good pressing effect can be ensured.

[0065] Optionally, referring to Figure 1 , the driving mechanism comprises an adjusting assembly 7. The adjusting assembly 7 is used to adjust the movement of the pressing head 1 towards or away from the feeding mechanism, so that the pressing surface 10 abuts against the connecting piece 3.

[0066] Specifically, as shown in Figure 1 , the driving mechanism comprises an adjusting assembly 7. Since the heights of the remaining connecting pieces 3 in each feeding groove on the feeding disc 2 may be different, the degree of movement of the pressing head 1 towards the feeding groove actually required in the process of sucking the connecting piece 3 is also different. For the feeding groove with higher remaining connecting piece 3, the degree of movement of the pressing head 1 towards the feeding groove actually required is smaller, and for the feeding groove with lower remaining connecting piece 3, the degree of movement of the pressing head 1 towards the feeding groove actually required is larger. The adjusting assembly 7 can fine-tune the pressing head 1, so that the pressing head 1 moves towards or away from the feeding groove of the feeding mechanism, and then the pressing surface 10 of the pressing head 1 fully abuts against the connecting piece 3, ensuring that the pressing head 1 can effectively suck the connecting piece 3. If the pressing device comprises a plurality of pressing heads 1, each pressing head 1 can be connected with an adjusting assembly 7, and the fine-tuning of the plurality of pressing heads 1 is relatively independent and does not affect each other, so that better adjusting effect can be ensured.

[0067] Optionally, referring to Figure 1 , the pressing head 1 is a vacuum chuck, and the driving mechanism comprises a vacuum electromagnetic valve 8. The vacuum electromagnetic valve 8 is used to control the vacuum chuck to suck or release the connecting piece 3.

[0068] Specifically, the pressing head 1 is a vacuum chuck fixed to the end of the vacuum pipe 11, and the vacuum pipe 11 is provided with a vacuum pipe 11 connector on the pipe wall, and the vacuum pipe 11 connector can realize the sealing of the vacuum pipe 11 to ensure the constant air pressure in the pipe. The driving mechanism includes a vacuum electromagnetic valve 8, which can use electromagnetic principle to perform vacuum treatment on the vacuum pipe 11, and control the air pressure in the vacuum pipe 11 through alternating current or direct current power supply, thereby controlling the vacuum chuck at the end of the vacuum pipe 11 to suck or release the connecting piece 3. The vacuum chuck is used for sucking operation, which is sensitive and fast in response, and can effectively improve the pressing efficiency of the pressing equipment, and the operation process is more environmentally friendly and clean.

[0069] In the case of the pressing head 1 being a vacuum chuck, the adjusting assembly 7 described above can be arranged in the vacuum pipe 11 and fixedly connected with the vacuum chuck. The adjusting assembly 7 includes a guide rail and a sliding block. The guide rail is arranged along the extension direction of the vacuum pipe 11. The sliding block is slidably connected with the guide rail and fixedly connected with the vacuum pipe 11. The sliding block slides along the guide rail to drive the vacuum chuck to move towards the feeding mechanism or away from the feeding mechanism, so that the pressing surface 10 of the pressing head 1 fully abuts against the connecting piece 3.

[0070] Optionally, the power battery connecting piece pressing equipment further comprises a detection device; the detection device is connected with the vacuum electromagnetic valve 8, and the detection device is used to detect whether the vacuum chuck successfully sucks or releases the connecting piece 3, and feeds back failure information to the vacuum electromagnetic valve 8 in the case that the vacuum chuck fails to successfully suck or release the connecting piece 3.

[0071] Specifically, the detection device is connected with the vacuum electromagnetic valve 8. The detection device can detect whether the vacuum chuck successfully sucks or releases the connecting piece 3. If the vacuum chuck successfully sucks or releases the connecting piece 3, the vacuum chuck normally performs the sucking operation. If the vacuum chuck fails to successfully suck or release the connecting piece 3, the detection device feeds back failure information of the operation failure to the vacuum electromagnetic valve 8. The failure information can be any type of electrical signal. After the vacuum electromagnetic valve 8 receives the failure information, the vacuum chuck is controlled to perform secondary sucking or pressing operation, so as to ensure that the sucking or pressing operation is successfully completed before the next operation. The detection device can be an air pressure sensor. The air pressure sensor is a sensor that senses control based on air pressure. An air inlet pipe that allows air to enter is arranged in the air pressure sensor. After being electrified, the air is transferred into the inside of the sensor. When the air enters, a pressure for pressing the sensor is generated. The size of the pressure is used to transmit an electronic signal. Then, a work signal is sent to the vacuum electromagnetic valve 8 connected with the air pressure sensor, so that the vacuum electromagnetic valve 8 is actuated.

[0072] In an embodiment, the detection device is further connected with an alarm device, and when the detection device detects that the vacuum chuck fails to successfully pick up or drop the connecting piece 3 for multiple times, a signal can be sent to the alarm device to make the alarm device alarm, so as to prompt the operator that the vacuum chuck and its related parts may have a fault and need to be maintained. For the above number of times, the detection device can control the alarm device to alarm when the detection device detects that the vacuum chuck fails to successfully pick up or drop the connecting piece 3 for five to eight times. Of course, the embodiment is not limited to the specific number of times.

[0073] The embodiment of the present application further provides a power battery connecting piece press fitting method applied to any one of the power battery connecting piece press fitting devices, and the method comprises the following steps: controlling the press fitting head 1 to pick up the connecting piece 3 from the feeding mechanism; adjusting the press fitting head 1 to be in the first posture; controlling the press fitting head 1 to press one end of the connecting piece 3 into the mounting hole 4 of the battery module and be buckled with the battery module; adjusting the press fitting head 1 to be switched to the second posture; and controlling the press fitting head 1 to press the other end of the connecting piece 3 into the mounting hole 4 and be buckled with the battery module.

[0074] Specifically, the method for pressing the connecting piece 3 by the aforementioned power battery connecting piece pressing equipment comprises: controlling the manipulator to drive the pressing head 1 to move towards the direction close to the feeding mechanism, when the pressing head 1 approaches the feeding mechanism, the vacuum electromagnetic valve 8 is opened to enable the pressing head 1 to suck the connecting piece 3 from the feeding disc; after the pressing head 1 finishes sucking the connecting piece 3, the connecting piece 3 is adsorbed on the pressing surface 10, then the manipulator is controlled to drive the pressing head 1 to move above the battery module mounting hole 4, then the posture of the pressing head 1 is adjusted by the rotating assembly or the lifting assembly, the pressing head 1 is first in the first posture, and the pressing surface 10 of the pressing head 1 is inclined to the horizontal plane in the first posture; then the manipulator is controlled to drive the pressing head 1 to move towards the direction close to the battery module mounting hole 4 in the first posture, when the connecting piece 3 on the pressing surface 10 contacts the mounting hole 1, the vacuum electromagnetic valve 8 is closed to make the pressing head 1 lose the adsorption force, then the connecting piece 3 is separated from the pressing surface 10, and the pressing surface 10 inclines to press one end of the connecting piece 3 into the fixed buckle end of the battery module mounting hole 4 and buckle with the fixed buckle end; after buckling, the posture of the pressing head 1 is adjusted by the rotating assembly or the lifting assembly to switch the pressing head 1 to the second posture, the pressing surface 10 of the pressing head 1 is still inclined to the horizontal plane in the second posture, but the inclination direction is different from that in the first posture, then the manipulator is continuously controlled to drive the pressing head 1 to move towards the direction close to the battery module mounting hole 4 in the second posture, and the pressing head 1 is always in the state of losing the adsorption force in the process, until the end of the pressing surface 10 close to the horizontal plane contacts the connecting piece 3, to press the other end of the connecting piece 3 into the elastic buckle end of the battery module mounting hole 4 and buckle with the elastic buckle end, after the buckling is completed, the connecting piece 3 is horizontally clamped in the battery module mounting hole 4, thus the pressing and fixing of the connecting piece 3 are realized.

[0075] Optionally, the step of adjusting the pressing head 1 to switch to the second posture specifically comprises: rotating the pressing head 1 by 180° along a first direction, or rotating the pressing head 1 by 60°-120° along a second direction.

[0076] Specifically, the first direction is a direction parallel to the horizontal plane, and the second direction is a direction perpendicular to the horizontal plane, when the driving mechanism comprises the rotating assembly, the step of adjusting the pressing head 1 to switch to the second posture specifically comprises: the rotating assembly drives the pressing head 1 to rotate by 180° along the direction parallel to the horizontal plane clockwise or counterclockwise, to realize the switching between the first posture and the second posture of the pressing head 1. When the driving mechanism comprises the lifting assembly, the step of adjusting the pressing head 1 to switch to the second posture specifically comprises: the lifting assembly drives the pressing head 1 to rotate by 60°-120° along the direction perpendicular to the horizontal plane, to realize the switching between the first posture and the second posture of the pressing head 1.

[0077] Optionally, during the process of controlling the press head 1 to suck the connecting piece 3 from the feeding mechanism, the method further comprises: adjusting the movement of the press head 1 towards or away from the feeding mechanism, so that the press head 1 abuts against the connecting piece 3.

[0078] Specifically, the driving mechanism further comprises an adjusting assembly 7, during the process of controlling the press head 1 to suck the connecting piece 3 from the feeding mechanism, the adjusting assembly 7 can adjust the movement of the press head 1 towards or away from the feeding mechanism, so that the press head 1 fully abuts against the connecting piece 3 on the feeding disc 2, and better adsorption effect is ensured.

[0079] Finally, it should be noted that, in this document, the terms such as first and second are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "contain" or any other variants thereof are intended to cover non-exclusive inclusion, so that the process, method, article or terminal device including a series of elements not only includes those elements, but also includes other elements not explicitly listed or inherent to such process, method, article or terminal device. Without more limitations, the element defined by the statement "including a" does not exclude the presence of other identical elements in the process, method, article or terminal device including the element.

[0080] The above description is only the preferred embodiment of the present application, and is not intended to limit the present application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A power battery connector pressing and fitting device, characterized in that, Includes a feeding mechanism, a drive mechanism, and a pressing head; The feeding mechanism is used to supply the connecting pieces required for the battery module; The pressing head includes a pressing surface for contacting and pressing the connecting piece, the pressing surface having a first sidewall and a second sidewall disposed opposite to each other; The driving mechanism is connected to the pressing head and is used to drive the pressing head to pick up the connecting piece from the feeding mechanism, and to press the two ends of the connecting piece into the mounting cavity of the battery module in a first posture and a second posture respectively, and to fasten the connecting piece to the battery module. In both the first and second postures, the pressing surface of the pressing head is inclined to the horizontal plane. In the first posture, the first sidewall is close to the mounting cavity, and the second sidewall is away from the mounting cavity. In the second posture, the first sidewall is away from the mounting cavity, and the second sidewall is close to the mounting cavity.

2. The power battery connector pressing equipment according to claim 1, characterized in that, The drive mechanism includes a lifting component; The lifting assembly is used to drive the pressing head to rotate 60°~120° along the second direction, so that the pressing head switches from the first posture to the second posture, where the second direction is perpendicular to the horizontal plane.

3. The power battery connector pressing equipment according to claim 1, characterized in that, When the pressing head is in the first posture or the second posture, the angle between the pressing surface and the horizontal plane is 30°~60°.

4. The power battery connector pressing equipment according to claim 1, characterized in that, The drive mechanism includes an adjustment component; The adjustment component is used to adjust the movement of the pressing head toward or away from the feeding mechanism so that the pressing surface abuts against the connecting piece.

5. The power battery connector pressing equipment according to claim 1, characterized in that, The pressing head is a vacuum suction cup, and the driving mechanism includes a vacuum solenoid valve; The vacuum solenoid valve is used to control the vacuum suction cup to pick up or put down the connecting piece.

6. The power battery connector pressing equipment according to claim 5, characterized in that, It also includes detection devices; The detection device is connected to the vacuum solenoid valve. The detection device is used to detect whether the vacuum suction cup successfully picks up or puts down the connecting piece, and to send a failure message to the vacuum solenoid valve if the vacuum suction cup fails to pick up or put down the connecting piece.

7. A method for press-fitting power battery connecting pieces, characterized in that, The method, applied to the power battery connector pressing equipment according to any one of claims 1 to 6, comprises: The pressing head is controlled to pick up the connecting piece from the feeding mechanism; Adjust the pressing head to position it in the first posture; The press head is controlled to press one end of the connecting piece into the mounting cavity of the battery module and fasten it to the battery module. Adjust the pressing head to switch it to the second posture; The press head is controlled to press the other end of the connecting piece into the mounting cavity and fasten it to the battery module.

8. The method for pressing together a power battery connector according to claim 7, characterized in that, The step of adjusting the pressing head to switch it to the second posture specifically includes: Rotate the pressing head 60°~120° along the second direction.

9. The method for pressing together a power battery connector according to claim 7, characterized in that, In the process of controlling the pressing head to pick up the connecting piece from the feeding mechanism, the method further includes: Adjust the pressing head to move closer to or further away from the feeding mechanism so that the pressing head abuts against the connecting piece.

Images