KR102367854B1 - Electric vehicle battery case powder paint suction system - Google Patents

Abstract

The present invention relates to an electric vehicle battery case powder paint suction system comprising: a suction work die; a semi-finished product seating table fixed to the suction work die; LM guide parts provided on both sides of the suction work die; a side suction block transferred back and forth by the LM guide part; and an upper suction block connected to the side suction block, crossing the suction work die, transferred in conjunction with the front and rear transfer of the side suction block, and sucking the upper side of a semi-finished product, wherein the semi-finished product seating table has a plate shape provided on both sides of the suction work die, and the system is combined to enable position control through a plurality of assembling holes drilled in each plate. It is possible to expect the effect of reducing the weight of an electric vehicle due to the reduction of the overall weight of a battery case by adopting an aluminum material for the battery case and manufacturing the battery case to ensure durability and rigidity. From material supply to finished products, process innovation can be realized through the automation of the entire process, resulting in a significant reduction in product manufacturing costs.

Description

Electric vehicle battery case powder paint suction system

The present invention relates to a suction system for removing the powder coating that may be exposed on the outer peripheral surface after spraying the powder coating, which is an insulating material, for powder coating applied to the manufacturing process of the battery case of an electric vehicle. The present invention relates to an electric vehicle battery case powder paint suction system for removing the powder paint exposed to the outer surface of the battery case after a process of spraying the powder paint as an insulating material to the inner surface of the battery case in a manufacturing process or manufacturing system.

Recently, global warming has emerged as an issue due to environmental pollution, etc., and technology development is being actively carried out in various fields to reduce it.

In particular, transportation that uses fossil fuels such as gasoline emits a large amount of exhaust gas, the main cause of air pollution, and the fossil fuels are also gradually being depleted. The means are gradually becoming more popular.

The types of electric vehicles described above include a battery powered EV, a fuel cell electric vehicle that uses a fuel cell as an electric motor, and a hybrid electric vehicle that uses both an electric motor and an engine. It is known that the hybrid electric vehicle has already been commercialized and widely used.

In addition, explosive demand is expected in recent years with the development of fuel cell development level and the commercialization of pure electric vehicle development.

In particular, in the case of an electric vehicle, a battery module for storing electric energy is provided, and the battery module has a form in which a plurality of battery cell units are accommodated in a battery case.

That is, in the case of a general electric vehicle, a battery module for storing electric energy is provided, and the battery module has a structure in which a plurality of battery cell units are accommodated in a battery case.

Recently, as the battery capacity required for an electric vehicle increases, the number of stacked battery cell units also increases, and the total weight thereof tends to increase accordingly.

In particular, the conventional battery case is frequently damaged or damaged in the process of mounting a battery in an electric vehicle or removing the mounted battery for battery replacement.

In this case, most of the battery case parts are joined by welding, etc., so when the parts are damaged or damaged, the whole must be replaced. .

Due to such a problem, in the case of a battery module including a battery case, it is necessary to form a robust structure.

However, if the thickness of the battery case is increased to ensure rigidity, an increase in manufacturing cost and an increase in weight are pointed out as unavoidable problems.

As described above, even if the battery case is not made of a steel material, the entire battery case is molded by injection molding, or the outer frame is molded by injection molding and internal ribs are molded with rapid material, and then bolted or joined to each other in some cases.

However, even in the case of a battery case manufactured in this way, it is a heavy body and is not suitable for an electric vehicle that seeks to reduce the weight. .

In addition, since a plurality of battery cells are accommodated in the battery case, an insulating material must be coated. Various means have been proposed for coating the inner peripheral surface of the battery case with an insulating material by powder coating.

Powder coating using powder coatings involves applying the paint to the surface to be painted and then drying it. In general, electrostatic powder coating refers to obtaining a coating film by using a powder coating material, which is a non-solvent type coating material, unlike liquid coating, and heating and melting it to a coating object.

More specifically, by spraying a negatively charged powder coating to a grounded coating object, electrically attaching it, and then heating and melting it to obtain a coating film, the powder coating once adhered has excellent adhesion strength and is therefore well suited to the coating object. It does not fall off, so it is universally used for metal products belonging to various industries, and it is also applied to the inner peripheral surface of an electric vehicle battery case.

As a prior art related to such powder coating, there is registered Patent No. 10-1666946 (October 11, 2016), etc., and the prior art has a beautiful appearance, is strong against moisture or water, and is flame retardant, semi-non-flammable, non-flammable. Due to its characteristics, powder coating, which can greatly help improve safety, especially in case of fire, is suggested.

However, the prior art does not provide a solution for the automation of the entire powder coating process, so it is difficult to improve productivity and manufacturability.

In addition, after spraying and applying the powder coating to the inner peripheral surface of the battery case, it undergoes a heat treatment process to form an insulating coating layer on the inner peripheral surface. It is necessary to remove the residual oil powder coating from the powder coating process on the outer surface of the case, but it is difficult to find literature suggesting such a technical configuration.

Korean Patent Registration No. 10-1816912 Korean Patent Registration No. 10-1373595 Korean Patent Registration No. 10-2162625 Korean Patent Registration No. 10-1666946

The present invention has been devised to solve the above problems, and it is an object of the present invention to use an aluminum material capable of reducing the weight of the battery case itself, but to configure it to be manufactured through a process that can secure rigidity and durability.

In addition, the present invention relates to a battery case manufacturing process or system for reducing the overall weight of the battery case to make it possible to reduce the weight of an electric vehicle, and after powder coating of an insulating material on the inner circumferential surface of the battery case, a powder coating applied to the outer surface of the battery case The purpose of this is to achieve process innovation by providing a suction system to remove the battery through an automated process and to significantly reduce the production cost of the battery case.

The present invention for achieving the above object,
A suction working die, a semi-finished product seat fixed to the suction working die, an LM guide part provided on both sides of the suction working die, a side suction block transferred back and forth by the LM guide part, and the side suction block are connected to the suction working die It includes an upper suction block that is transferred interlockingly with the front and rear transfer of the side suction block by crossing the

The semi-finished product seating table constitutes a plate shape provided on both sides of the suction working die, and is coupled to enable position adjustment through a plurality of assembling holes drilled in each plate.
An electric vehicle battery case powder paint suction system including a robot arm provided on the side of the suction working die to take out a semi-finished product on which the insulation coating operation is completed from the powder work bench of the powder coating unit and load it on the semi-finished work bench of the suction die;
An electric vehicle battery case powder paint suction system comprising supporting spots on both sides of the upper surface of the semi-finished product seating table;
An electric vehicle battery case powder road suction system including fixing rods for supporting both ends of the semi-finished product seated on the semi-finished product mounting table at the front and rear ends of the suction working die, respectively;
An electric vehicle battery case powder paint suction system comprising the fixture being configured to be transportable back and forth;
The side suction block is provided with a plurality of side suction hoses having different upper and lower positions, and a plurality of upper suction hoses are provided at the lower end of the upper suction block;
An electric vehicle battery case powder paint suction system comprising a plurality of upper suction hoses configured to be fixed or transferred left and right;
The lowermost side suction hose of the side suction block performs suction treatment of the powder paint exposed on the lower side of the side of the semi-finished product for forming the battery case of the electric vehicle, and the other side suction hoses provided above the lowermost side suction hose cover both ends of the semi-finished product. An electric vehicle battery case powder paint suction system comprising a suction treatment;
The above object can be achieved by configuring the electric vehicle battery case powder paint suction system, which includes a configuration in which the other side suction hoses provided above the lowermost side suction hose are movable up and down.

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According to the present invention, by adopting the battery case as an aluminum material and manufacturing it to ensure durability and rigidity, it can be expected that the weight of the electric vehicle can be reduced due to the overall weight reduction of the battery case, and the entire process from material supply to finished product is expected. As process innovation can be realized through automation, a significant reduction in product manufacturing cost can be expected.

1 is a block diagram of each configuration of the entire system for obtaining a battery case applied to an electric vehicle;
2 is a view showing the front of the first straightening unit in the correcting part of the material forming part corresponding to the pre-processing process of the present invention;
Figure 3 is a view showing the front of the second calibration section for secondary calibration of the semi-finished material that has passed through the first calibration section of Figure 2;
4 is a view showing a semi-finished material to be molded and corrected through FIGS. 1 to 3;
5 is a view showing a powder coating room entered for powder coating of semi-finished products degreased in the degreasing unit;
6 is a view showing a configuration for allowing the semi-finished product to enter the powder coating room and be seated on the seating jig;
7 is a view showing the configuration of the powder coating unit for powder coating before being sucked in the suction unit of the present invention;
8 is a view showing a suction unit for taking out the semi-finished product on which the powder coating operation has been completed from the powder coating unit according to FIG. 7 and suctioning it by the second robot arm;
9 to 10 are views schematically showing a state in which the semi-finished product on which the powder work has been performed in the powder coating unit is seated toward the suction unit for suction;
11 is a view showing the configuration of the upper suction block and the side suction block in the suction unit;
12 is a view schematically showing a state in which the insulation that is attached to the surface of the semi-finished product by powder coating can be removed by the side suction hose and the upper suction hose in the suction part of the present invention;
13 is a view showing a transfer cradle and a second transfer rail for taking out a semi-finished product that has been suctioned from the suction unit by the third robot arm and transferring it to the second heat treatment unit;
14 is a view showing a battery case completed according to the present invention;

Specific structural or functional descriptions of the embodiments according to the concept of the present invention disclosed in this specification are only exemplified for the purpose of explaining the embodiments according to the concept of the present invention, and the embodiments according to the concept of the present invention are Since various changes can be made and can have various forms, all changes, equivalents, or substitutes included in the spirit and scope of the present invention are included, and the terms or words used in the specification and claims are conventional or dictionary It is not limited to the meaning, and, of course, on the basis of the fact that the inventor can appropriately define the concept of a term to describe his invention in the best way, the meaning and concept consistent with the technical idea of the present invention should be interpreted as Accordingly, the embodiments described in the specification of the present invention and the configurations shown in the drawings are only the most preferred embodiment of the present invention and do not represent all of the technical spirit of the present invention. It should be understood that various possible equivalents and variations are possible or existent.

In addition, unless otherwise defined in the specification of the present invention, all terms used herein, including technical or scientific terms, have the same meaning as commonly understood by one of ordinary skill in the art to which the present invention belongs. have Terms such as those defined in a commonly used dictionary should be interpreted as having a meaning consistent with the meaning in the context of the related art, and should not be interpreted in an ideal or excessively formal meaning unless explicitly defined in the present specification. does not

Hereinafter, a preferred embodiment of the present invention will be described with reference to the accompanying drawings.

In the entire manufacturing system of the battery case 3 that is implemented so that the entire process is automated, the present invention provides an insulating material, which is a powder coating, which is applied to the outer surface of the battery case 3 in which the insulating material is applied to the inner surface in the powder coating unit 600. The suction system for suction is specified as the scope of its rights.

Prior to explaining the suction process and configuration for removing the powder coating material deposited on the outer surface during the powder coating process for the battery case 3 using the suction system of the present invention, the overall manufacturing of the battery case 3 is described. Explain the process.

As shown in FIG. 1, the battery case 3 applied to the present invention is a material forming part 100, a first heat treatment part 300, a surface cutting part 400, a degreasing part 500, and on the inner surface of a semi-finished product. It can be obtained through a series of processes leading to the powder coating unit 600 , the suction unit 700 , the second heat treatment unit 800 , and the final inspection unit 900 for powder coating the insulator.

The material forming unit 100 uses an aluminum material having a '┗┛' shape in cross section to obtain a semi-finished product suitable for the size of the battery case.

It includes the process of supplying the semi-finished material 1 made of an aluminum material to the material forming unit 100 and cutting it to fit the length of the battery case so that the molding is made.

Hereinafter, in the present invention, such non-finished product form is named and described as semi-finished material (1), and the aluminum material in the form of a plate is already bent and molded in the previous step to form a '┗┛' shape in cross section and has a long length. must be supplied in condition.

The material forming part 100 goes through the following configuration in detail. First, the straightening part 110 for correcting the semi-finished material 1 supplied with a long length, and the semi-finished product passing through the straightening part 110 . A cutting unit 120 for cutting the material 1 to a predetermined length, a washing unit 130 for washing the semi-finished material 1 that has been subjected to the cutting unit 120, and a semi-finished material that has been subjected to the washing unit 130 It consists of a barcode engraving unit 140 for imprinting a barcode on the surface, and an inspection unit 150 for measuring and inspecting the external dimensions of the semi-finished material 1 that has passed through the barcode engraving unit 140 .

First, the straightening unit 110 is for correcting the semi-finished material 1 having a '┗┛' shape in cross section and having a considerable length, and first passes through the first correcting unit 111 and the second correcting unit 112 .

Each of the first and second correction units 111 and 112 is a semi-finished material 1 having a long length toward the first correcting unit 111 to calibrate the semi-finished material 1 by using a roller as shown in each photograph for the replacement of the drawing. ) is provided with a roller guide (not shown in the drawing) for guiding the entry.

On the other hand, as shown in FIG. 2 , the first straightening unit 111 has a first guide roller 111a facing the outer side to guide the entry of the semi-finished material 1, and the first guide roller 111a A first central roller (111b) for pressing and correcting the inner surface of the semi-finished material (1) that has passed through and a first lower roller (111c) opposite to the lower side of the first central roller (111b) is provided to provide the semi-finished product The side surface side of the semi-finished material (1) that is provided to support the bottom outer surface of the material (1), is provided in front of the first central roller (111b), and has passed through the first guide roller (111a) A first inner roller (111d) for supporting and correcting the from the inside is provided.

In addition, the second correction unit 112 is formed in a shape similar to that of the first correction unit 111 .

3 shows the configuration of the second calibration unit 112, a second guide roller ( 112a) is provided opposite, the second central roller 112b and the second central roller 112b for pressing and correcting the inner bottom surface of the semi-finished material 1 that has passed through the second guide roller 112a. A second lower roller 112c opposite to the A second outer roller (112d) for supporting and correcting the side surface side of the semi-finished material (1) passing through 112a) from the outside is provided.

As the semi-finished material 1 having a significant length in the form of '┗┛' in cross section passes through the first correction unit 111, the verticality and smoothness of the outer and bottom surfaces are corrected, and the second correction unit 112 ), the process of re-calibrating the minute parts that have not been corrected in the first correction unit 111 or the excessively corrected parts are passed through again.

As described above, the semi-finished material 1, which passes through the first correction unit 111 and the second correction unit 112, and whose appearance is molded and corrected, is cut to a predetermined length, that is, to fit the length of the battery case. After passing through the washing unit 130 for washing, after passing through the bar code engraving unit 140 for engraving a barcode on the surface of the semi-finished material 1 that has been subjected to the washing unit 130, the semi-finished material (1) It is connected to the press unit 200, which is a subsequent process, through the inspection unit 150 for filtering the defective material by measuring the external dimensions of the unit to determine whether there is a defect or not.

The press unit 200 means a configuration for molding and correcting the semi-finished product 2 obtained in the material forming unit 100 .

The semi-finished product (2) means that it is provided after being cut to the size of the battery case on the side of the material forming unit 100 described above.

It enters the press unit 200 to form a groove in the region where the end of the battery cell is located at the end of the outer surface of the semi-finished product 2 formed primarily in the material forming unit 100 .

As described above by the primary press unit 210 on the one end side of the semi-finished product 2 that has entered the press unit 200, a pressing step for forming a groove on one end side of the semi-finished product 2 is performed, and then the subu ( In 220), a step of correcting the deformation phenomenon in which both sides of the semi-finished product 2 are concave inward when passing through the first press unit 210 is performed.

The first heat treatment unit 300 is a firing process for changing the physical properties of the semi-finished product 2 made of an aluminum material that has been subjected to the above-described press unit 200. In order to provide rigidity and strength to the aluminum material, it is The heat treatment is performed, and as the heat treatment conditions in the first heat treatment unit 300, commonly known conditions for strengthening the physical properties of the aluminum material may be applied.

The surface cutting unit 400 is configured for cutting the surface of the semi-finished product 2 that has been subjected to the first heat treatment unit 300 .

In the case of the semi-finished product 2, a groove 2a is formed on the end side through the primary press unit 210 of the press unit 200, and a protrusion 2b protruding from the bottom outer surface is formed. The protrusion 2b is cut, and the entire outer surface of the semi-finished product 2 is subjected to a surface cutting process. (See Fig. 4)

On the other hand, organic materials and inorganic materials are attached to the surface of the semi-finished product 2 that has been subjected to the surface cutting unit 400 during the surface cutting process. and enters the powder coating unit 600 to form an insulating coating layer on the inner surface of the semi-finished product 2 that has been subjected to the degreasing unit 500 .

In the powder coating part 600, as shown in FIG. 5, it means a configuration in which an insulating coating layer is formed by spraying an insulating material on the inner surface of the semi-finished product 2 using a robot arm through a nozzle.

The semi-finished product 2 in a state in which inorganic and organic substances attached to the surface of the semi-finished product 2 cut by the degreasing unit 500 are removed is transferred along the first conveying rail 510 to the holder 520. In the seated state, the process is continuously transferred from the degreasing unit 500 to the powder coating unit 600 side.

The first transfer rail 510 continues in an endless trajectory from the degreasing unit 500 to the powder coating unit 600 side, and the first transfer rail 510 and the upper end are connected to a cradle 520 provided to be interlocked and transferred. When the semi-finished product 2 that has been degreased is transferred to the powder coating unit 600 in a seated state, the first robot arm 620 extracts the semi-finished product 2 and places it on the seating jig 610. do.

The seating jig 610 includes a seating base 611 for seating after the first robot arm 620 takes out the semi-finished product 2 from the holder 520 and the seating base 611 as shown in FIG. 5 . The semi-finished products 2 seated on the mounting base 611 are aligned by configuring the position adjusting units 612 at at least two of the slopes.

The position adjusting unit 612 is provided at each of the vertical and horizontal sides of the mounting base 611, and the position adjusting cylinder 613 so that the position in which the semi-finished product 2 mounted on the mounting base 611 is seated can be set. ) is controlled so that the semi-finished product 2 is placed at the set position according to the operation.

In this way, to put the semi-finished product 2 at the position set on the mounting table 611, the pickup process of the semi-finished product 2 that is performed thereafter is made by a robot, so the correct pickup of the semi-finished product 2 must be exactly the same as the position value. This can proceed.

On the other hand, the semi-finished product 2 seated on the mounting base 611 and aligned with the position is picked up by the above-described first robot arm 620 and seated in a working area for powder work.

As described above, for the inner surface powder work of the semi-finished product (2), it is possible to carry out the example shown in Fig. 6, the front and rear fixing jigs 630 and the side fixing jigs 640 for the semi-finished product 2 to be seated and supported. It is provided on the slopes in a state separated from each other, and the side fixing jigs 640 are laterally transferred by the lateral transfer cylinder 641 in the lateral direction, and the seated semi-finished products 2 are side-fixed.

Here, the lower end of the semi-finished product 2 is supported and a powder workbench 660 is configured to be seated, and a spray nozzle (not shown) for spraying an insulating material is configured at the center of the powder workbench 660, so that the semi-finished product is configured. (2) A powder chamber 670 having a space for injection to the inside is formed.

In addition, a horizontal bar ( 652) on the end side.

The horizontal bar 652 is rotated at the end of the rod 653 to press the upper surface side of the semi-finished product 2, and the position is displaced by the injection pressure when the insulation of the semi-finished product 2 is sprayed from the nozzle during the powder coating process. to suppress the phenomenon.

That is, the semi-finished product 2 is moved from the front and rear fixing jigs 630 and the side fixing jigs 640 due to the pressure when the insulating material is injected into the inner surface of the semi-finished product 2 at high pressure and is sprayed so that the insulating layer can be formed. Positional displacement due to the bouncing phenomenon of bouncing in the direction may occur. In this case, it will lead to defects, so it is necessary to perfectly control the upward positional displacement of the semi-finished product 2 during the powder coating process.

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On the other hand, after the insulating material on the inner surface of the semi-finished product 2 is sprayed with a certain thickness from the powder coating unit 600 , the semi-finished product 2 is extracted and fed to the suction unit 700 side.

When the insulating material is applied to the inner surface of the semi-finished product 2 through the nozzle in the powder coating unit 600, a phenomenon in which some insulation is applied to the outer surface of the semi-finished product 2 occurs.

In this way, if the outer surface of the semi-finished product 2 is partially covered with insulation and undergoes a heat treatment process, it is classified as a defective product. , this insulation removal process is performed in the suction unit 700 described above.

In order to transport the semi-finished product 2 to the suction unit 700, a position fixing roller that was fixedly supported by pressing the upper surface of the semi-finished product 2 in a state of being seated on the powder work table 660 of the powder coating unit 600 In a state in which the upward control of the semi-finished product 2 is released by the horizontal bar 652 having the 651 being rotated and returned to its original position, the side fixing jig 640 is retracted by the operation of the side conveying cylinder 641 to the semi-finished product When the side support force of (2) is released, the second robot arm 710 feeds the semi-finished product 2 and moves it toward the suction unit 700 side.

As shown in FIGS. 9 to 10, the suction unit 700 includes a semi-finished product seat 721 fixed to the suction work die 720, and an LM guide unit provided on both sides of the suction work die 720 ( 730), the side suction block 740 transferred back and forth by the LM guide unit 730, and the side suction block 740 connected to the side suction block 740 to cross the suction working die 720, and the side suction block 740 ) and is interlocked with the forward and backward transfer and consists of an upper suction block 750 that sucks the upper surface side of the semi-finished product (2).

The suction working die 720 constitutes a plate shape provided on both sides, and a plurality of assembling holes 722 are perforated, so that the semi-finished product seat 721 can be coupled through the assembling holes 722 .

The semi-finished product seat 721 can be configured to have a different assembly position depending on the location of the assembly hole 722 , so that it can be adjusted according to the specifications of the semi-finished product 2 , that is, the battery case.

For example, when the overall length of the battery case is different, the semi-finished product seat 721 may be combined with the assembly hole 722 of the suction die 720 to match the overall length.

On the other hand, support spots 723 are configured on both sides of the upper surface of the semi-finished product holder 721 so that when the semi-finished product 2 is seated on the semi-finished product holder 721, it is seated and supported by the pointed part of the support spot 723. .

As described above, the semi-finished product 2 is in a state in which an insulating powder in the form of powder has been applied to the inner surface by the powder coating unit 600 and has not undergone a heat treatment process. When the suction process is performed in a state supported by In order to minimize the contact area between the 721, the semi-finished product 2 should be supported using the support spot 723 configuration described above.

The front and rear ends of the suction working die 720 constitute a fixing base 724 for supporting the front and rear ends of the semi-finished product 2 seated on the semi-finished product mounting base 721, respectively.

On the other hand, the LM guide part 730 is configured on the side of the suction working die 720, respectively, and the side suction block 740 and the upper suction block 750 are transported back and forth along the LM guide part 730. It is configured as in FIGS. 11 and 12 .

The side suction block 740 is provided with a plurality of side suction hoses 741 having different upper and lower positions, and a plurality of upper suction hoses 751 are provided at the lower end of the upper suction block 750 .

The upper suction hose 751 is provided to remove the insulation exposed to the outer, particularly the upper surface end side of the semi-finished product 2 during the powder coating process. As a result, various implementations may be possible due to design changes.

On the other hand, the lowermost side suction hose 741a among the plurality of side suction hoses 741 provided in the side suction block 740 removes the insulation exposed to the outer side of the semi-finished product 2, especially the lower end side during the powder coating process. it is for

That is, when the side suction block 740 and the upper suction block 750 are transferred back and forth by interlocking by the operation of the LM guide unit 730 in a connected state, the upper side suction block 750 is provided on the side of the upper side suction block 750 . The suction hose 751 performs a suction treatment on the upper end of the semi-finished product 2 , and then the side suction hose 741a at the bottom of the side suction hoses 741 provided in the side suction block 740 is on the side of the semi-finished product 2 . At the same time as the lower side is subjected to suction treatment, the other side suction hoses 741 on the upper side of the lower side suction hose 741a are subjected to a process of suction treatment of the side end of the semi-finished product (2).

Here, the lowermost side suction hose 741a maintains a fixed state and the other side suction hose 741 may be configured to be movable up and down.

As described above, when the suction process for the semi-finished product 2 in a state in which the insulation, etc. is applied to the inner surface of the powder coating unit 600 through the suction unit 700 is completed, a separate third robot arm 780 ) to take out the semi-finished product 2 on which the suction has been completed from the above-described semi-finished product seating base 721 and place it on the side of the transport cradle 760 in the form of a hanger, and the transport cradle 760 is a second transport rail It has a configuration in which it is moved along 770 and moved toward the second heat processing unit 800 .

The second transfer rail 770 is formed in an infinite trajectory, and the hanger-type transfer holder 760 moving along the second transfer rail 770 is a semi-finished product ( 2) is drawn in and subjected to heat treatment, and then the process of returning to the suction unit 700 side is repeated after being taken out by the operator to load the semi-finished product 2 on the tray of the final inspection unit 900 .

Here, the second heat treatment unit 800 may be understood as a configuration for heat-treating the semi-finished product 2 that has passed through the suction unit 700 as described above, similarly to the first heat treatment unit 300 , which has been previously heat-treated.

Meanwhile, the semi-finished product 2 from which the insulation has been removed from the surface through the suction unit 700 enters the second heat treatment unit 800, which is a subsequent process, and is heat treated so that the insulating coating layer to be painted on the inner surface of the semi-finished product 2 is fired. will go through the process of

That is, the second heat treatment unit 800 has physical properties so that the powder coating by firing the insulating material coated on the inner surface of the semi-finished product 2 that has passed through the suction unit 700 described above is completed so that the insulating coating can be completed. Heat treatment conditions for strengthening the physical properties of powder-coated products, commonly known as a firing process to change

On the other hand, the semi-finished product 2 that has passed through the second heat treatment unit is subjected to a final inspection by an operator while being loaded on a tray (not shown in the drawing) on the side of the final inspection unit 900 .

The final inspection unit 900 inspects the dimensions and powder coating thickness of the semi-finished product 2 , and identifies and classifies defective products and good products that are outside the allowable range of dimensions and powder coating thickness.

The semi-finished product 2, which was found to be a good product by the final inspection unit 900 through each of the above processes, is combined with the cover plate that covers the open area on one side after the battery cells are inserted inside as shown in FIG. It is possible to provide a completed battery module.

As described above, although the present invention has been described with reference to the limited embodiments and drawings, the present invention is not limited to the above embodiments, of course, from the above description by those of ordinary skill in the art to which the present invention pertains. Of course, various modifications and variations may be possible.

Therefore, the technical spirit in the present invention should be understood by the claims described below, but it will be obvious that all equivalents or equivalent modifications thereof fall within the scope of the technical spirit of the present invention.

One; Semi-finished material 2; Semi-manufactures
2a; home 2b; projection part
100; material forming part 111; 1st correctional department
111a; first guide roller 111b; 1st central roller
111c; first lower roller 111d; 1st inner roller
112; second correction unit 112a; 2nd guide roller
112b; a second central roller 112c; 2nd lower roller
112d; second outer roller 120; cutting part
130; washing unit 140; barcode engraving
150; inspection unit 200; press part
210; first press unit 220; 2nd press
300; a first heat treatment unit 400; surface cut
500; degreasing unit 510; 1st transfer rail
520; cradle 600; powder coating
610; seating jig 611; seat
612; positioning unit 613; positioning cylinder
620; first robot arm 630; Front and rear fixed jigs
640; side fixing jig 641; side transfer cylinder
650; up and down adjustment cylinder 651; positioning roller
652; horizontal bar 653; road
660; sieve bench 670; powder room
700; suction unit 710; 2nd robot arm
720; suction die 721; semi-finished product
722; assembler 723; support width
724; fixture 730; LM guide part
740; side suction block 741; side suction hose
741a; bottom side suction hose 750; upper suction block
751; upper suction hose 760; transport cradle
770; a second transfer rail 800; 2nd heat treatment unit
900; final inspection department

Claims (10)

A suction working die, a semi-finished product seat fixed to the suction working die, an LM guide part provided on both sides of the suction working die, a side suction block transferred back and forth by the LM guide part, and the side suction block are connected to the suction working die It includes an upper suction block that is transferred interlockingly with the front and rear transfer of the side suction block by crossing the
The semi-finished product seating table constitutes a plate shape provided on both sides of the suction working die, and is coupled to enable position control through a plurality of assembling holes drilled in each plate.
The method of claim 1,
Electric vehicle battery case powder paint suction system including a robot arm provided on the side of the suction work die to take out the semi-finished product on which the insulation coating operation is completed from the powder work bench of the powder coating unit and load it on the semi-finished work bench of the suction work die.
delete The method of claim 1,
Electric vehicle battery case powder paint suction system comprising supporting spots on both sides of the upper surface of the semi-finished product seating table.
The method of claim 1,
The electric vehicle battery case powder road suction system including fixing bars for supporting both ends of the semi-finished product which are seated on the semi-finished product seating stand, respectively, at the front and rear ends of the suction working die.
6. The method of claim 5,
The electric vehicle battery case powder paint suction system including the fixture being configured to be transferred back and forth.
The method of claim 1,
and a plurality of side suction hoses having different upper and lower positions are provided in the side suction block, and a plurality of upper suction hoses are provided at a lower end of the upper suction block.
8. The method of claim 7,
The electric vehicle battery case powder paint suction system comprising the plurality of upper suction hoses being fixed or configured to be moved left and right.
8. The method of claim 7,
The lowermost side suction hose of the side suction block suction-treats the powder paint exposed on the lower side of the side of the semi-finished product to form the electric vehicle battery case,
The other side suction hoses provided above the lowermost side suction hose are the electric vehicle battery case powder paint suction system, including suction treatment on both ends of the semi-finished product.
10. The method of claim 9,
and other side suction hoses provided above the lowermost side suction hose are configured to be movable up and down.

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