Battery pack cable plugging equipment and battery pack detection system

Abstract

The utility model discloses a battery pack cable plugging and unplugging device and a battery pack detection system, and relates to the technical field of battery pack quality detection, the battery pack cable plugging and unplugging device comprises a mounting rack, a flexible clamping jaw, a mechanical arm and a visual detection assembly, the flexible clamping jaw is connected with the mounting rack, and the flexible clamping jaw is used for clamping or loosening a wire harness terminal; the moving end of the mechanical arm is connected with the mounting frame, so that the mechanical arm can drive the flexible clamping jaw to move through the mounting frame; the visual detection assembly is connected with the mounting rack and is used for detecting whether the pin of the inspection port is qualified or not; according to the battery pack cable plugging and unplugging device, the performance / performance inspection of the battery pack is completed without manual participation, the potential safety hazard of plugging and unplugging a wire harness terminal by personnel is eliminated, and the operation efficiency of plugging and unplugging the wire harness terminal is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of battery pack quality detection, and in particular to a battery pack cable plugging and unplugging device and a battery pack detection system. Background Art

[0002] As the penetration rate of domestic new energy electric vehicles gradually increases, the output of battery packs is increasing, and the industry has higher and higher requirements for the safety and flexibility of battery pack assembly. The existing battery pack function / performance inspection test requires the operator to insert the wiring harness into the inspection port of the battery, and then the equipment side performs the function / performance inspection. The voltage during the function inspection is as high as 341V. For operators who rely on manual plugging and unplugging of cables, there is a safety risk of electric shock to the operator. In addition, relying on operators to plug and unplug cables may also cause the risk of terminal damage due to operator fatigue. In addition, operators need to wear insulating gloves when plugging and unplugging cables, resulting in poor operability and low efficiency. Utility Model Content

[0003] The main purpose of the utility model is to provide a battery pack cable plugging and unplugging device, aiming to solve the problems of safety risks and low efficiency in existing cable plugging and unplugging operations.

[0004] To achieve the above-mentioned purpose, the battery pack cable plugging and unplugging device proposed by the utility model is used to insert or unplug the wiring harness terminal into or out of the inspection port of the battery pack. The battery pack cable plugging and unplugging device includes:

[0005] Mounting frame;

[0006] A flexible clamping claw connected to the mounting frame, and used for clamping or releasing the wiring harness terminal;

[0007] A mechanical arm, wherein a moving end of the mechanical arm is connected to the mounting frame so that the mechanical arm can drive the flexible clamp to move through the mounting frame;

[0008] A visual inspection component connected to the mounting frame, the visual inspection component is used to detect whether the pin of the inspection port is qualified

[0009] In one embodiment, the battery pack cable plugging and unplugging device also includes a control mechanism and a visual guidance mechanism, wherein the visual guidance mechanism is connected to the mounting frame, and the visual guidance mechanism and the robotic arm are both electrically connected to the control mechanism, so that the visual guidance mechanism can assist the robotic arm in inserting the wiring harness terminal into the inspection port or unplugging the wiring harness terminal from the inspection port.

[0010] In one embodiment, the flexible jaw includes a jaw driver, a first jaw, and a second jaw. The jaw driver is connected to the mounting bracket, and both the first jaw and the second jaw are in transmission connection with the jaw driver. The jaw driver is configured to drive the first jaw and the second jaw to approach or move away from each other.

[0011] In one embodiment, the first jaw includes a first jaw body and a first positioning member. The first jaw body is in transmission connection with the jaw driver, and the first positioning member is disposed on a side of the first jaw body facing the second jaw. The first positioning member is configured to extend into a first positioning groove of the wire harness terminal.

[0012] In one embodiment, the second jaw includes a second jaw body and a second positioning member. The second jaw body is in transmission connection with the jaw driver, and the second positioning member is disposed on a side of the second jaw body facing the first jaw. The second positioning member is configured to extend into a second positioning groove of the wire harness terminal.

[0013] In one embodiment, the robotic arm includes an arm body and a force sensor. A mobile end of the arm body is connected to the mounting bracket, and the force sensor is disposed on the arm body.

[0014] The present utility model further provides a battery pack detection system. The battery pack detection system includes a frame and the above-mentioned battery pack cable plugging and unplugging device, and the robotic arm is connected to the frame.

[0015] In one embodiment, the battery pack detection system further includes a transfer trolley for placing the battery pack.

[0016] In one embodiment, a plurality of rollers are spaced apart at the bottom of the transfer trolley. The battery pack detection system further includes a transport trolley detachably connected to the transfer trolley so that the transport trolley can drive the transfer trolley to move.

[0017] In one embodiment, the battery pack detection system further includes a fence surrounding the periphery of the battery pack cable plugging and unplugging device.

[0018] The technical solution of the present utility model is to drive a flexible jaw to move to the wire harness terminal by means of a robotic arm, clamp the wire harness terminal with the flexible jaw, then drive the wire harness terminal clamped by the flexible jaw to move to the battery pack by the robotic arm, insert the wire harness terminal into the inspection port of the battery pack, then energize the wire harness terminal to perform a function / performance inspection on the battery pack. After the inspection is completed, the robotic arm drives the flexible jaw to pull out the wire harness terminal from the inspection port of the battery pack, and then drives the vision detection component to move to the inspection port of the battery pack by the robotic arm to perform vision detection on the pins in the inspection port. If there is no abnormality, the robotic arm drives the wire harness terminal to move to the starting position, thus realizing the function / performance inspection of the battery pack without manual participation, eliminating the safety hazards existing in the manual plugging and unplugging of wire harness terminals, and improving the operation efficiency of plugging and unplugging wire harness terminals. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on the structures shown in these drawings.

[0020] Figure 1 It is a schematic structural diagram of an embodiment of the battery pack detection system provided by the present utility model;

[0021] Figure 2 It is a schematic structural diagram of an embodiment of the battery pack cable plugging and unplugging device provided by the present utility model;

[0022] Figure 3 It is a schematic structural diagram of an embodiment of the flexible jaw clamping the wire harness terminal provided by the present utility model;

[0023] Figure 4 It is a schematic structural diagram of an embodiment of the flexible jaw clamping and releasing the wire harness terminal provided by the present utility model.

[0024] Explanation of the reference numerals in the drawings:

[0025] 100, battery pack cable plugging and unplugging device; 1, mounting frame; 2, flexible jaw; 21, first jaw; 211, first jaw body; 212, first positioning member; 22, second jaw; 221, second jaw body; 222, second positioning member; 23, jaw driving member; 3, robotic arm; 4, vision detection component; 5, vision guiding mechanism;

[0026] 200, battery pack detection system; 201, frame; 202, transfer trolley; 203, transportation trolley;

[0027] 300. Battery pack; 301. Inspection port;

[0028] 400. Wiring harness terminal; 401. First positioning groove; 402. Second positioning groove.

[0029] The realization, functional features and advantages of the purpose of the present utility model will be further described in conjunction with the embodiments and with reference to the accompanying drawings. Specific embodiments

[0030] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts belong to the scope of protection of the present utility model.

[0031] It should be noted that if there are directional indications (such as up, down, left, right, front, back...) involved in the embodiments of the present utility model, the directional indications are only used to explain the relative positional relationship and movement conditions between components in a specific posture. If the specific posture changes, the directional indications will also change accordingly.

[0032] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present utility model, the descriptions of "first", "second", etc. are only for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one such feature. In addition, if "and / or" or "and / or" appears throughout the text, its meaning includes three parallel solutions. Taking "A and / or B" as an example, it includes solution A, solution B, or a solution where A and B are satisfied simultaneously. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the fact that those of ordinary skill in the art can implement them. When the combination of technical solutions results in contradictions or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection required by the present utility model.

[0033] As the penetration rate of domestic new energy electric vehicles gradually increases, the output of battery packs is increasing, and the industry has higher and higher requirements for the safety and flexibility of battery pack assembly. The existing battery pack function / performance inspection test requires the operator to insert the wiring harness into the inspection port of the battery, and then the equipment side performs the function / performance inspection. The voltage during the function inspection is as high as 341V. For operators who rely on manual plugging and unplugging of cables, there is a safety risk of electric shock to the operator. In addition, relying on operators to plug and unplug cables may also cause the risk of terminal damage due to operator fatigue. In addition, operators need to wear insulating gloves when plugging and unplugging cables, resulting in poor operability and low efficiency.

[0034] The utility model provides a battery pack cable plugging and unplugging device.

[0035] See also Figure 2 and Figure 3 In one embodiment of the utility model, the battery pack cable plugging and unplugging device 100 is used to insert or unplug the wiring harness terminal 400 into or from the inspection port 301 of the battery pack 300. The battery pack cable plugging and unplugging device 100 includes a mounting frame 1, a flexible clamp 2, a robotic arm 3 and a visual inspection component 4. The flexible clamp 2 is connected to the mounting frame 1, and the flexible clamp 2 is used to clamp or release the wiring harness terminal 400; the moving end of the robotic arm 3 is connected to the mounting frame 1 so that the robotic arm 3 can drive the flexible clamp 2 to move through the mounting frame 1; the visual inspection component 4 is connected to the mounting frame 1, and the visual inspection component 4 is used to detect whether the pin of the inspection port 301 is qualified.

[0036] The technical solution of the present utility model is to drive the flexible gripper 2 by the robotic arm 3 to move to the wire harness terminal 400, grip the wire harness terminal 400 by the flexible gripper 2, then drive the wire harness terminal 400 gripped by the flexible gripper 2 by the robotic arm 3 to move to the battery pack 300, and insert the wire harness terminal 400 into the inspection port 301 of the battery pack 300. Then, the wire harness terminal 400 is powered on to perform a function / performance inspection on the battery pack 300. After the inspection is completed, the robotic arm 3 drives the flexible gripper 2 to pull out the wire harness terminal 400 from the inspection port 301 of the battery pack 300. Then, the robotic arm 3 drives the vision inspection component 4 to move to the inspection port 301 of the battery pack 300 to perform a vision inspection on the pins in the inspection port 301 to determine whether they are qualified, that is, whether the pins are bent, damaged, missing, etc. By adding the vision inspection component 4 to inspect the pins in the inspection port 301, the quality of the battery pack 300 is guaranteed to a certain extent; if the pins in the inspection port 301 are qualified, the robotic arm 3 drives the wire harness terminal 400 to move to the starting position, thus realizing the function / performance inspection of the battery pack 300 without manual participation, eliminating the safety hazards existing in the manual plugging and unplugging of the wire harness terminal 400, improving the operation efficiency of plugging and unplugging the wire harness terminal 400, and effectively avoiding the phenomenon of damaged wiring terminals caused by fatigue operation of the operators. Moreover, since the existing function / performance inspection of the battery pack 300 is a manual operation in an engineering island, using the battery pack cable plugging and unplugging device 100 to replace manual operation effectively eliminates the problem of the engineering island and achieves a safer and more reassuring working environment. It should be noted that generally, the number of wire harness terminals 400 is multiple. Taking three as an example, before performing the function / performance inspection on the battery pack 300, the three wire harness terminals 400 are all inserted into the socket, and then the robotic arm 3 and the flexible gripper 2 insert the three wire harness terminals 400 into the corresponding inspection ports 301 on the battery pack 300 one by one. After the battery pack 300 completes the inspection, the three wire harness terminals 400 are pulled out from the inspection port 301 one by one. After the last wire harness terminal 400 is pulled out, the robotic arm 3 will first drive the vision inspection component 4 to move to the inspection port 301 to inspect the internal pins. After the inspection is qualified, it will drive the last wire harness terminal 400 back to the socket and insert the wire harness terminal 400 back into the socket. In this way, the function / performance automation inspection of the battery pack 300 is realized, saving manpower, reducing labor costs, and also ensuring the quality of the product to a certain extent.

[0037] In one embodiment, the battery pack cable plugging and unplugging device 100 also includes a control mechanism (not shown) and a visual guidance mechanism 5, the visual guidance mechanism 5 is connected to the mounting frame 1, and the visual guidance mechanism 5 and the robot arm 3 are both electrically connected to the control mechanism, so that the visual guidance mechanism 5 can assist the robot arm 3 to insert the wiring harness terminal 400 into the inspection port 301 or pull out the wiring harness terminal 400 from the inspection port 301. After the flexible clamp 2 completes the clamping of the wiring harness terminal 400, the battery pack 300 is photographed by the visual guidance mechanism 5, and the control mechanism controls the robot arm 3 based on the information obtained by the visual guidance mechanism 5 to guide and correct the moving path of the wiring harness terminal 400, so that the wiring harness terminal 400 can be accurately inserted into the corresponding inspection port 301. It should be noted that the robot arm 3, the visual inspection component 4 and the visual guidance mechanism 5 can all be implemented using existing technologies.

[0038] See also Figures 2 to 4 In one embodiment, the flexible clamp 2 includes a clamp driver 23, a first clamp 21, and a second clamp 22. The clamp driver 23 is connected to the mounting frame 1. The first clamp 21 and the second clamp 22 are both connected to the clamp driver 23. The clamp driver 23 is used to drive the first clamp 21 and the second clamp 22 to move closer to each other or away from each other. The clamp driver 23 drives the first clamp 21 and the second clamp 22 to move closer to each other so as to clamp the wiring harness terminal 400. The clamp driver 23 drives the first clamp 21 and the second clamp 22 to move away from each other so as to release the wiring harness terminal 400. It should be noted that the clamp driver 23 can be a cylinder or a motor.

[0039] In one embodiment, the first clamping jaw 21 includes a first clamping jaw body 211 and a first positioning member 212. The first clamping jaw body 211 is in transmission connection with the clamping jaw driving member 23. The first positioning member 212 is disposed on the side of the first clamping jaw body 211 facing the second clamping jaw 22. The first positioning member 212 is used to extend into the first positioning groove 401 of the wiring harness terminal 400. The clamping jaw driving member 23 drives the first clamping jaw body 211 and the second clamping jaw 22 to approach each other, so that when the first clamping jaw body 211 and the second clamping jaw 22 clamp the wiring harness terminal 400, the first positioning member 212 can extend into the first positioning groove 401, thereby limiting the movement of the wiring harness terminal 400 relative to the flexible clamping jaw 2, and improving the accuracy of plugging and unplugging the wiring harness terminal 400.

[0040] In one embodiment, the second clamping jaw 22 includes a second clamping jaw body 221 and a second positioning member 222. The second clamping jaw body 221 is in transmission connection with the clamping jaw driving member 23. The second positioning member 222 is arranged on the side of the second clamping jaw body 221 facing the first clamping jaw 21. The second positioning member 222 is used to extend into the second positioning groove 402 of the wiring harness terminal 400. When the first clamping jaw body 211 and the second clamping jaw body 221 clamp the wiring harness terminal 400, the first positioning member 212 is inserted into the first positioning groove 401, and the second positioning member 222 is inserted into the second positioning groove 402. Through the cooperation of the two sets of shaft holes, the movement of the wiring harness terminal 400 relative to the flexible clamping jaw 2 is further limited, thereby further improving the accuracy of plugging and unplugging the wiring harness terminal 400. It should be noted that the first positioning member 212 and the second positioning member 222 can be a positioning pin or a positioning column.

[0041] In one embodiment, the robot arm 3 includes an arm body and a force sensor, the moving end of the arm body is connected to the mounting frame 1, and the force sensor is arranged on the arm body. By adding a force sensor on the basis of the traditional robot arm 3, the robot arm 3 can control the force of plugging and unplugging when inserting or unplugging the wiring harness terminal 400 into or out of the inspection port 301 through the flexible clamp 2, so that the entire plugging and unplugging process can be similar to manual operation, thereby effectively replacing the operator to perform flexible assembly operations.

[0042] See also Figures 1 to 4 The utility model also proposes a battery pack detection system 200, which includes a rack 201 and the battery pack cable plugging and unplugging device 100, and a mechanical arm 3 is connected to the rack 201. Since the battery pack detection system 200 adopts all the technical solutions of all the above embodiments, it has at least all the beneficial effects brought by the technical solutions of the above embodiments, which will not be repeated here one by one.

[0043] In one embodiment, the battery pack detection system 200 further includes a transfer trolley 202, which is used to place the battery pack 300. The transfer trolley 202 is provided to place the battery pack 300, so that the battery pack 300 can be easily moved.

[0044] In one embodiment, a plurality of rollers are spaced apart at the bottom of the transfer trolley 202. The battery pack detection system 200 further includes a transport trolley 203, which is detachably connected to the transfer trolley 202 so that the transport trolley 203 can drive the transfer trolley 202 to move. The transport trolley 203 is used to drive the transfer trolley 202 to move, thereby realizing the automatic handling of the battery pack 300 and saving manpower. It should be noted that the transport trolley 203 can be an AGV (English name: Automated Guided Vehicle, Chinese name: Automatic Guided Vehicle) trolley or an RGV (English name: Rail Guided Vehicle, Chinese name: Rail Guided Vehicle) trolley.

[0045] Among them, the transport trolley 203 moves the transfer trolley 202 with the battery pack 300 placed thereon to the detection station of the battery pack 300. When the battery pack 300 moves to the detection station, the transfer trolley 202 is clamped to prevent the transfer trolley 202 from moving relative to the ground. At the same time, the vehicle type of the battery pack 300 is obtained through RFID (English name: Radio Frequency Identification, Chinese name: Radio Frequency Identification) for judgment. If the vehicle type is confirmed correctly, a flexible gripper 2 clamps a wire harness terminal 400, and then a visual guidance mechanism 5 takes a photo. The control mechanism controls the robotic arm 3 to drive the wire harness terminal 400 clamped by the flexible gripper 2 to insert into the corresponding inspection port 301 depending on the information obtained by the visual guidance mechanism 5. The flexible gripper 2 releases the wire harness terminal 400, and then the robotic arm 3 moves the flexible gripper 2 to another wire harness terminal 400. Then the flexible gripper 2 clamps the wire harness terminal 400 and inserts the wire harness terminal 400 into the corresponding inspection port 301. This process is repeated until all the required wire harness terminals 400 are inserted into the corresponding inspection ports 301. Then, the battery pack 300 is powered on for inspection. After the inspection is completed, the robotic arm 3 and the flexible gripper 2 pull out the wire harness terminals 400 one by one and move them to the starting position. After the last wire harness terminal 400 is pulled out, the robotic arm 3 drives the visual inspection component 4 to move to the inspection port 301 to detect whether the pins in the inspection port 301 are bent. If not, the robotic arm 3 drives the last wire harness terminal 400 back to the starting position of the wire harness terminal 400, releases the clamping of the transfer trolley 202, and the transport trolley 203 drives the transfer trolley 202 to take the battery pack 300 away from the detection station. This process is repeated, thereby realizing the automatic inspection of the functions / performances of the battery pack 300. It should be noted that before the battery pack 300 reaches the detection station, the positions where the wire harness terminals 400 are located are the starting positions of the wire harness terminals 400.

[0046] In one embodiment, the battery pack detection system 200 further includes a fence, which is arranged around the battery pack cable plugging and unplugging device 100. By setting up the fence, the safety of the battery pack detection system 200 is effectively improved.

[0047] The above is only an exemplary embodiment of the present utility model, and does not limit the patent scope of the present utility model. Any equivalent structural transformation made under the technical concept of the present utility model by using the content of the specification and drawings of the present utility model, or any direct / indirect application in other related technical fields is included in the patent protection scope of the present utility model.

Claims

1. A battery pack cable plugging and unplugging device for inserting or removing a harness terminal into or from an inspection port of a battery pack, characterized in that, include: Mounting frame; A flexible clamping claw connected to the mounting frame, and used for clamping or releasing the wiring harness terminal; A mechanical arm, wherein a moving end of the mechanical arm is connected to the mounting frame so that the mechanical arm can drive the flexible clamp to move through the mounting frame; A visual inspection component, the visual inspection component is connected to the mounting frame, and the visual inspection component is used to detect whether the pin of the inspection port is qualified; The flexible clamp comprises a clamp driving member, a first clamp and a second clamp, wherein the clamp driving member is connected to the mounting frame, the first clamp and the second clamp are both connected to the clamp driving member by transmission, and the clamp driving member is used to drive the first clamp and the second clamp to move closer to or away from each other; The first clamping jaw comprises a first clamping jaw body and a first positioning member, the first clamping jaw body is transmission-connected to the clamping jaw driving member, the first positioning member is arranged on a side of the first clamping jaw body facing the second clamping jaw, and the first positioning member is used to extend into the first positioning groove of the wiring harness terminal; The second clamping jaw includes a second clamping jaw body and a second positioning member, the second clamping jaw body is transmission-connected to the clamping jaw driving member, the second positioning member is arranged on the side of the second clamping jaw body facing the first clamping jaw, and the second positioning member is used to extend into the second positioning groove of the wiring harness terminal.

2. The battery pack cable plugging and unplugging device according to claim 1, wherein The battery pack cable plugging and unplugging equipment also includes a control mechanism and a visual guidance mechanism, wherein the visual guidance mechanism is connected to the mounting frame, and the visual guidance mechanism and the robotic arm are both electrically connected to the control mechanism, so that the visual guidance mechanism can assist the robotic arm in inserting the wiring harness terminal into the inspection port or unplugging the wiring harness terminal from the inspection port.

3. The battery pack cable plugging and unplugging device according to any one of claims 1 to 2, characterized in that The mechanical arm includes an arm body and a force sensor. The moving end of the arm body is connected to the mounting frame, and the force sensor is arranged on the arm body.

4. A battery pack detection system, characterized in that, The battery pack detection system comprises a rack and a battery pack cable plugging and unplugging device as claimed in any one of claims 1 to 3, and the robotic arm is connected to the rack.

5. The battery pack detection system according to claim 4, wherein The battery pack detection system also includes a transfer trolley, which is used to place the battery pack.

6. The battery pack detection system according to claim 5, characterized in that, A plurality of rollers are arranged at intervals at the bottom of the transfer trolley. The battery pack detection system further comprises a transport trolley, and the transport trolley is detachably connected to the transfer trolley so that the transport trolley can drive the transfer trolley to move.

7. The battery pack detection system according to any one of claims 4 to 6, characterized in that, The battery pack detection system also includes a fence, and the fence ring is arranged on the periphery of the battery pack cable plugging and unplugging device.

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