CN219513155U - Automatic case assembly system that goes into of battery module - Google Patents

Abstract

The utility model provides an automatic battery module box-in assembly system which comprises a Pack box body transferring device and a battery module carrying device; the Pack box transferring device is used for transferring the pre-assembled Pack box to an automatic box feeding station of the battery module and positioning and clamping the Pack box transferring trolley; the battery module carrying device is used for carrying the battery module; the automatic positioning device mainly comprises an industrial robot, a flexible robot claw, an automatic positioning tool, a module vision positioning system and the like, wherein the PACK box body can be automatically positioned, the battery module can be automatically grasped at the Mark position of the battery module and the PACK box body, the battery module can be accurately placed into the PACK box body after positioning and deviation correction, the problems that the manual handling efficiency is low, the potential safety hazards such as easy falling of workpieces and the like in the prior art are solved, and the existing mechanical claw is poor in placement precision, and the technical problems that the battery module is damaged and the product compatibility is poor due to misoperation are easily caused.

Description

An automatic box-in assembly system for battery modules

technical field

The utility model provides an automatic box-packing assembly system for battery modules, which belongs to the technical field of automation equipment.

Background technique

In the new energy battery production process, it needs to go through multiple production stages such as cells (Cell) to modules (Module), modules to battery packs (Pack), a group of cells form a module, and multiple modules To form a battery pack, the production process from a battery cell to a battery pack is quite complicated. As new energy battery manufacturers face different customer groups, the product specifications of battery modules and Packs have diversified characteristics, and the production line needs to be compatible with a variety of products during the production process. The customization attributes of modules and Pack assembly links are much higher than The manufacturing process of single cell is one of the important processes of battery production.

Pack assembly usually includes processes such as shell on-line, water-cooled plate installation, shell bottom gluing, module boxing, BMS installation, wiring harness installation, upper shell installation, air tightness testing, and box off-line. Each station is transported and transferred through the assembly line or AGV line to realize assembly line production. During the assembly process, production information and test parameters can be monitored in real time. Module boxing is an important part of the Pack assembly line. Due to product diversification and compatibility, the actual production is mostly done in a semi-automatic way. The box body and the battery module are manually scanned and manually operated. The mechanical hoisting of the module to the designated position of the shell requires multiple people to carry out the assembly process at the same time, which wastes manpower. There are problems such as low automation level, poor product consistency, and slow production rhythm. Potential safety hazards, and there are many problems in the automatic boxing of the existing modules. The picking and placing of the modules is not accurate enough, resulting in misoperation, damage to the modules or even safety accidents, which brings heavy losses to the manufacturer. At the same time, the production of new energy batteries After changing the model, it is difficult to switch and adjust the tooling, which affects production efficiency.

The module automatic boxing device provided by patent CN107323711A adopts a symmetrical structure as a whole and consists of two symmetrical devices, including: the first rectangular coordinate robot, the NG battery device, the battery box platform, the robot platform, and the second rectangular coordinate robot , battery bracket, electric cylinder to push the battery mechanism. The battery box platform and the robot platform are rectangular frame structures and are set on the ground. The first rectangular coordinate robot and the second rectangular coordinate robot are fixed on both sides of the robot platform, and the battery box platform is placed in the middle of the robot platform. The first Cartesian coordinate robot and the second Cartesian coordinate robot cooperate with each other and are symmetrically installed on both sides of the battery box platform. The battery bracket and the electric cylinder push battery mechanism are placed on the first Cartesian robot, and the NG gear battery device is placed on the second Cartesian robot. Place the battery box on the battery box platform.

This device has the following disadvantages

At present, there are the following defects: poor product compatibility; poor reliability, inaccurate boxing; inconvenient maintenance, and high maintenance costs in the later period.

Utility model content

Aiming at the above-mentioned technical problems, the utility model designs an automatic box-packing assembly system for battery modules, which mainly includes industrial robots, flexible robot grippers, automatic positioning tooling, module visual positioning system, etc., which can automatically position the PACK box, visually Identify the Mark position of the battery module and the PACK box, automatically grab the battery module, and accurately place it into the PACK box after positioning and correcting, so as to solve the safety hazards such as low manual handling efficiency and easy falling of the workpiece in the existing technology. Problems, as well as technical problems such as poor positioning accuracy of the existing manipulator claws, easy to cause malfunctions resulting in damage to the battery module, and poor product compatibility.

The utility model is based on the new energy battery production process. When the battery module is installed in the Pack box, the automation degree of the conveying device is low, which is easy to cause safety accidents and low production efficiency. The purpose of the utility model is to provide a new automatic battery module. The box-in assembly system can automatically put the battery module into the Pack box, and is compatible with the production of products of various specifications. The tooling can be quickly switched, which significantly improves the production efficiency of battery module assembly into the box, and at the same time reduces the operating costs. cost and reduce the occurrence of safety accidents.

An automatic box-packing assembly system for battery modules, including a Pack box transfer device and a battery module handling device;

The Pack box transfer device is used to transfer the pre-installed Pack box to the battery module automatic box-in station, and to position and clamp the Pack box transfer trolley;

The Pack box transfer device includes a secondary positioning frame, and the upper part of the secondary positioning frame is installed with a clamping positioning mechanism, and also includes an AGV trolley responsible for transferring the Pack box and a tooling vehicle carrying the Pack box;

The Pack box is placed flat on the table of the tooling truck, and there are positioning blocks on the table to perform initial positioning on the three sides of the Pack box, and a spring knob quick positioning block to position the other side of the Pack box;

The spring knob quick positioning block includes a fixed pin shaft, a spring button pin shaft, and the spring button pin shaft is hinged on the table through the fixed pin shaft.

The AGV trolley is connected with the tooling vehicle, and is used to pull the tooling vehicle into the secondary positioning frame station;

There is a pair of secondary positioning frame bodies, and guide wheels are arranged on the inner side of the upper part of the secondary positioning frame body. The guide wheels cooperate with the guide strips provided on the outside of the tooling vehicle, and the tooling vehicle enters the middle of the pair of secondary positioning frame bodies;

The secondary positioning frame is equipped with a clamping positioning mechanism to start action, and the clamping positioning mechanism is arranged diagonally to clamp the tooling vehicle;

The clamping positioning mechanism includes a second clamping cylinder, which is slidably installed on the sliding guide rail through the cylinder fixed base plate, and the extension end of the second clamping cylinder is connected to push the clamping push plate, and the clamping push plate is provided with a clamp Tighten the rollers.

Battery module handling device, including robot base, six-axis industrial robot, robot gripper, material storage platform and AGV transfer vehicle, for handling battery modules;

The robot gripper includes a connecting flange used to connect with the end of the robot, and the flange is connected to the base. There are two sets of guide rail sliders under the base, and one set of guide rail sliders is connected to the mobile splint;

The cylinder fixing seat is connected to another group of guide rail sliders through the screw guide rail assembly. The base of the first clamping cylinder is fixed on the cylinder fixing seat. The screw guide rail assembly can adjust the position of the cylinder fixing seat to adjust the clamping. The stroke of battery modules with different specifications;

A fixed splint is installed at the end of the base;

A plurality of stroke adjustment sensors are arranged above the side of the base, and an induction bracket is fixed on the upper part of the cylinder fixing seat, which is used in conjunction with the stroke adjustment sensors;

There is a clamping in-position sensor at the lower central position of the movable splint and the fixed splint, which are used to detect whether the splint clamps the battery module. The visual component is fixed on the outside of the fixed splint. The camera and light source of the visual component pass through the fixed bracket. The fixing splints are connected, and a code scanning component is fixed on the top of the base, which is used for scanning and recording the battery module.

Concrete technical effect of the utility model:

1. Improve the production efficiency of battery module automatic packing;

2. Compatible with the production of products of various specifications, the tooling change is convenient, fast and reliable, reducing the auxiliary positioning time;

3. Reduce the safety risk caused by manual operation of the module into the box and the damage to the battery module caused;

4. The structure has high reliability, is not easy to be damaged, has a long service life, and is convenient for later maintenance, which can reduce production and operation costs.

Description of drawings

Fig. 1 is a structural schematic diagram of the battery module automatic packing of the utility model;

Fig. 2 is a structural schematic diagram of the Pack box transfer device of the present invention;

Fig. 3 is a structural schematic diagram of the tooling car platform of the present invention;

Fig. 4 is a structural schematic diagram of the clamping and positioning mechanism of the present invention;

Fig. 5 is a structural schematic diagram of the battery module handling device of the present invention;

Fig. 6 is a structural schematic diagram of the robot gripper of the present invention.

Detailed ways

The specific technical solutions of the present invention are described in conjunction with the accompanying drawings.

As shown in FIG. 1 , an automatic packing and assembling system for battery modules includes a Pack case transfer device 1 and a battery module transfer device 2 . In order to make the purpose of the utility model, the technical solution and the advantages more clear, the following will be further explained in conjunction with the accompanying drawings,

As shown in Figure 2, the Pack case transfer device 1 is used to transfer the pre-installed Pack case to the battery module automatic packing station, and to position and clamp the Pack case transfer trolley;

The Pack box transfer device 1 includes a secondary positioning frame body 3.1, the upper part of the secondary positioning frame body 3.1 is installed on a clamping positioning mechanism 3.2, and also includes an AGV trolley 3.3 responsible for transferring the Pack box body and a tooling vehicle 3.4 carrying the Pack box body ;

Wherein, the Pack box body 3.5 is placed flat on the table top 3.4.1 of the tooling vehicle 3.4, and a positioning block 3.4.2 is arranged on the table top 3.4.1, and the Pack box body 3.5 is initially positioned;

As shown in Figure 3, the structure of the mesa 3.4.1. The three sides of the Pack box 3.5 are positioned by the positioning block 3.4.2, and there are two spring knob quick positioning blocks 3.4.3 on the left side. The spring knob quick positioning block 3.4.3 includes the fixed pin shaft 3.4.3.1 and the spring button pin Axis 3.4.3.2, after pulling out the spring button pin 3.4.3.2, it can be rotated by 90° for quick positioning and release. There are multiple sets of positioning block connection holes on the table top 3.4.1, which is convenient for quick replacement when producing products of different specifications.

In order to complete the fixing preparation of the Pack box, the AGV trolley 3.3 pulls the tooling vehicle 3.4 that has fixed the Pack box from the previous process to the secondary positioning frame body 3.1 station, and the secondary positioning frame body 3.1 is one on each side. Second positioning frame body 3.1 top inboard is provided with guide wheel, and guide wheel cooperates with the guide bar that the outside of tooling vehicle 3.4 is provided with, tooling vehicle 3.4 can be made to enter the middle of secondary positioning frame body 3.1 smoothly, and guarantees the gap of left-right direction.

When the AGV trolley 3.3 stops at the designated position, the clamping and positioning mechanism 3.2 arranged diagonally on the secondary positioning frame 3.1 starts to act, and clamps the tooling vehicle 3.4 to complete the secondary positioning of the Pack box .

The clamping positioning mechanism 3.2 is shown in Figure 4. The clamping positioning mechanism 3.2 includes a cylinder fixed bottom plate 3.2.1, a second clamping cylinder 3.2.2, a sliding guide rail 3.2.3, a clamping push plate 3.2.4 and a clamping roller 3.2.5. The clamping positioning mechanism 3.2 includes a second clamping cylinder 3.2.2, which is slidably installed on the sliding guide rail 3.2.3 through the cylinder fixed base plate 3.2.1, and the second clamping cylinder 3.2.2 extends out End connection promotes clamping push plate 3.2.4, and clamping roller 3.2.5 is provided on clamping push plate 3.2.4. When clamping, the second clamping cylinder 3.2.2 pushes the clamping push plate 3.2.4 to act, and the clamping roller 3.2.5 fixed on the clamping push plate 3.2.4 protrudes forward together, and is aligned with the tooling trolley 3.4 The right-angled edge of the frame body is in contact with the corner to complete precise positioning.

As shown in Figure 5, the battery module handling device 2 includes a robot base 4.1, a six-axis industrial robot 4.2, a robot gripper 4.3, a material storage platform 4.4 and an AGV transfer vehicle 4.5, and is used to transport the battery module 4.6. The main implementation process is as follows: After the AGV transfer vehicle 4.5 transfers the assembled battery module 4.6 from the module storage to the material storage platform 4.4, the robot gripper 4.3 starts to move, accurately recognizes and grabs the battery module 4.6, and transfers the battery module 4.6 to the material storage platform 4.4. The group 4.6 is accurately put into the Pack box 3.5 of the Pack box transfer device 1 .

As shown in Figure 6, the detailed structure of the robot gripper 4.3, the robot gripper 4.3 includes a connecting flange 4.3.1 connected with the end of the robot, the flange 4.3.1 is connected to the base 4.3.2, and the base 4.3.2 There are two sets of guide rail sliders below, one of which is connected to the movable splint 4.3.4;

Cylinder fixing seat 4.3.6 is connected to another group of guide rail sliders through screw guide rail assembly 4.3.7, the base of the first clamping cylinder 4.3.5 is fixed on cylinder fixing seat 4.3.6, screw guide rail assembly 4.3. 7 The position of cylinder fixing seat 4.3.6 can be adjusted to adjust the stroke of clamping battery modules of different specifications;

A fixed splint 4.3.3 is installed at the end of the base 4.3.2;

A plurality of stroke adjustment sensors 4.3.11 are arranged above the side of the base 4.3.2, and an induction support 4.3.12 is fixed on the upper part of the cylinder fixing seat 4.3.6, which is used in conjunction with the stroke adjustment sensor 4.3.11. When the robot gripper 4.3 When clamping products of different specifications, the corresponding stroke adjustment sensor 4.3.11 sends out a signal to avoid malfunction of the robot gripper 4.3 and damage the battery module 4.6;

A clamping in-position sensor 4.3.10 is provided at the lower central position of the movable splint 4.3.4 and the fixed splint 4.3.3, which is used to detect whether the splint clamps the battery module 4.6, and is fixed on the outside of the fixed splint 4.3.3. Visual component 4.3.8, the camera and light source of visual component 4.3.8 are connected to the fixed splint 4.3.3 through the fixed bracket, and the scanning code component 4.3.9 is fixed on the top of the base 4.3.2, which is used for battery module 4.6 Scan the code to record.

The entire working process of battery module 4.6 automatic packing: the robot gripper 4.3 first moves to the top of the tooling cart 3.4 in the Pack case transfer device 1, and the visual component 4.3.8 is fixed on the table 3.4.1 of the tooling cart 3.4. The Pack box 3.5 takes pictures to accurately identify the position characteristics of the upper part of the Pack box 3.5, then the robot gripper 4.3 moves to the top of the battery module 4.6, and the visual component 4.3.8 takes pictures of the upper features of the battery module 4.6, and calculates Accurate coordinates, the robot gripper 4.3 starts to move, the fixed splint 4.3.3 of the robot gripper 4.3 moves to one end of the battery module 4.6, and starts to descend. When reaching the designated position, the robot gripper 4.3 stops falling. At this time, the robot gripper 4.3 starts to move in translation, the inner side of the fixed splint 4.3.3 moves toward the end of the battery module 4.6, the inner side of the fixed splint 4.3.3 contacts the end plate of the battery module 4.6, and the clamping in place sensor 4.3 under the fixed splint 4.3.3. 10 sends a signal in place, the first clamping cylinder 4.3.5 starts to move, and the moving splint 4.3.4 moves to the inside, close to the other end of the battery module 4.6, when the inner surface of the moving splint 4.3.4 and the other end of the battery module 4.6 When one end is in contact, the clamping in place sensor 4.3.10 sends a signal to ensure that the robot gripper 4.3 clamps the battery module 4.6 accurately. At this time, the robot arm drives the robot gripper 4.3 to transfer the battery module 4.6 to the upper part of the Pack box 3.5 , and put the battery module 4.6 into the specified position of the Pack box body 3.5 accurately, then the cylinder rod of the clamping cylinder 4.3 stretches out to open the movable splint 4.3.4, and the entire robot claw 4.3 translates to the outside of the fixed splint 4.3.3 , at this time, the fixed splint 4.3.3 is disengaged from the other end plate of the battery module 4.6, so far, the automatic boxing of the battery module 4.6 is completed, and the robot gripper 4.3 will repeat the above actions to complete the boxing action of the remaining battery modules 4.6 , so back and forth. When producing battery modules 4.6 of different specifications, it is necessary to adjust the clamping stroke of the first clamping cylinder 4.3.5 through the screw guide assembly 4.3.7. At this time, it is necessary to turn the hand wheel of the screw guide assembly 4.3. The fixed seat 4.3.6 moves to the designated position, the stroke adjustment sensor 4.3.11 receives the signal from the sensing bracket 4.3.12, indicating that the stroke adjustment of the product of the corresponding specification is completed, and the cylinder fixed seat 4.3. The guide rail slider of 6 is locked with the guide rail, and then the automatic packing work of the new specification battery module 4.6 can be completed.

Claims (3)

1. An automatic box-packing assembly system for battery modules, characterized in that it includes a Pack box transfer device (1) and a battery module handling device (2); The Pack box transfer device (1) is used to transfer the pre-installed Pack box to the battery module automatic box-in station, and to position and clamp the Pack box transfer trolley; The Pack case transfer device (1) includes a secondary positioning frame (3.1), the upper part of the secondary positioning frame (3.1) is installed on a clamping positioning mechanism (3.2), and also includes an AGV trolley (3.3 ) and the tooling vehicle (3.4) carrying the Pack box; The Pack box (3.5) is placed flat on the table (3.4.1) of the tooling vehicle (3.4), and a positioning block (3.4.2) is arranged on the table (3.4.1), and the three sides of the Pack box (3.5) are fixed. For initial positioning, there is also a spring knob quick positioning block (3.4.3) to position the other side of the Pack box (3.5); The AGV trolley (3.3) is connected with the tooling vehicle (3.4), and is used to pull the tooling vehicle (3.4) into the secondary positioning frame body (3.1) station; The secondary positioning frame body (3.1) has a pair, and guide wheels are arranged on the inner side of the upper part of the secondary positioning frame body (3.1). In the middle of a pair of secondary positioning frame bodies (3.1); The secondary positioning frame body (3.1) is provided with a clamping positioning mechanism (3.2) to start action, and the clamping positioning mechanism (3.2) is arranged diagonally to clamp the tooling vehicle (3.4); Battery module handling device (2), including robot base (4.1), six-axis industrial robot (4.2), robot gripper (4.3), material storage platform (4.4) and AGV transfer vehicle (4.5), used for handling battery modules group(4.6); The robot gripper (4.3) includes a connecting flange (4.3.1) used for connecting with the end of the robot, and the flange (4.3.1) is connected to the base (4.3.2), and the bottom of the base (4.3.2) is provided with two A set of guide rail sliders, one of which is connected with a movable splint (4.3.4); The cylinder fixing seat (4.3.6) is connected to another group of guide rail sliders through the screw guide rail assembly (4.3.7), and the base of the first clamping cylinder (4.3.5) is fixed on the cylinder fixing seat (4.3.6) On the top, the screw guide rail assembly (4.3.7) can adjust the position of the cylinder fixing seat (4.3.6), so as to adjust the stroke of clamping battery modules of different specifications; The end of the base (4.3.2) is equipped with a fixed splint (4.3.3); Multiple stroke adjustment sensors (4.3.11) are arranged above the side of the base (4.3.2), and the upper part of the cylinder fixing seat (4.3.6) is fixed with an induction bracket (4.3.12), which is connected with the stroke adjustment sensor (4.3. 11) Used together; A clamping in-position sensor (4.3.10) is provided at the lower central position of the movable splint (4.3.4) and the fixed splint (4.3.3) to detect whether the splint clamps the battery module (4.6). The visual component (4.3.8) is fixed on the outside of the splint (4.3.3), and the camera and light source of the visual component (4.3.8) are connected to the fixed splint (4.3.3) through the fixing bracket, and the base (4.3.2) A code scanning component (4.3.9) is fixed on the top of the battery module (4.6) for scanning and recording. 2. A battery module automatic box-in assembly system according to claim 1, characterized in that the spring knob quick positioning block (3.4.3) includes a fixed pin shaft (3.4.3.1), a spring button pin The shaft (3.4.3.2), the spring button pin (3.4.3.2) is hinged on the table (3.4.1) through the fixed pin (3.4.3.1). 3. An automatic box-in assembly system for battery modules according to claim 1, characterized in that, the clamping positioning mechanism (3.2) includes a second clamping cylinder (3.2.2), and the second clamping The cylinder (3.2.2) is slidably installed on the sliding guide rail (3.2.3) through the cylinder fixed base plate (3.2.1), and the extension end of the second clamping cylinder (3.2.2) is connected to push the clamping push plate (3.2.4 ), the clamping roller (3.2.5) is provided on the clamping push plate (3.2.4).