CCS hot riveting process

Abstract

A CCS hot riveting process belongs to the technical field of integrated busbar manufacturing processes and comprises the steps of pattern input, to-be-processed part arrangement, pattern and to-be-processed part alignment, formal processing, processing completion and the like. In the technical field of hot riveting, a plurality of hot riveting pieces capable of working uniformly are arranged for one or two standardized products to improve the working efficiency, and the problem of real-time pattern collection is completely eradicated.

Description

Technical Field

[0001] The present application belongs to the technical field of integrated busbar manufacturing technology, and in particular relates to a CCS hot riveting process. Background Art

[0002] With the development of battery pack integration technology and the improvement of automated assembly requirements, integrated busbars that use FPC flexible circuit boards to replace traditional battery wiring harnesses are gradually being widely used. Integrated busbars (Cells Contact System, CCS) are mainly composed of signal acquisition components, plastic structural parts, copper and aluminum bars, etc., which are connected into a whole through hot pressing or riveting processes to achieve high-voltage series and parallel connection of battery cells, as well as battery temperature sampling and battery cell voltage sampling functions.

[0003] In the traditional integrated busbar production process, in order to improve the welding efficiency between the flexible circuit board and the aluminum bar, two or more welding heads can be used to work simultaneously, so that the solder joints on the integrated busbar can be welded using multiple welding heads at the same time.

[0004] In the integrated busbar double-head welding control method and storage medium with publication number CN118321772A, the following steps are included: obtaining an original image of the integrated busbar to be welded; obtaining a plane coordinate system with a coordinate origin, and dividing the area of ​​the plane coordinate system on one side of the coordinate origin into a first area, and the area of ​​the plane coordinate system on the other side of the coordinate origin into a second area along the direction of the first axis; obtaining the coordinates of each welding point in the original image of the integrated busbar to be welded; and driving the first welder and the second welder at the same time, so as to use the first welder to weld the welding points located in the first area, and use the second welder to weld the welding points located in the second area, and the movement directions of the first welder and the second welder on the first axis are consistent.

[0005] In the prior art, the integrated busbar needs to read the original image of the integrated busbar into the storage medium before welding. If the shape of the integrated busbar is changed, the visual system needs to re-read the image of the integrated busbar for storage, and then the welding equipment needs to readjust the coordinate position of the welding head. This is very common in the field of welding technology, because in the prior art of welding, most products are non-standard products. Moreover, the double-head welding method for the integrated busbar in the comparative document is a hot riveting process; the end component structure used is different, and the structure of the welder is relatively complex relative to the structure of the hot riveted part, and the welder cannot use multiple welding heads to work at the same time. Summary of the invention

[0006] The purpose of the present invention is to solve the problem that existing equipment needs to continuously read the processed parts and re-determine the coordinates. This application firstly only targets one or two standardized products, eliminating the problem of real-time pattern collection; and in the field of hot riveting technology, multiple hot riveting parts that can work in a unified manner can be set to improve work efficiency.

[0007] In order to achieve the above technical purpose, the following technical solution is provided: a CCS hot riveting process, including the following steps:

[0008] a. Image input: Input the original image of the integrated busbar to be hot-riveted into the hot-riveting equipment; the hot-riveting point coordinates in the original image are divided into equal-row hot-riveting points and independent hot-riveting points;

[0009] b. Place the parts to be processed: Place the integrated busbar to be hot-riveted into the hot riveting equipment; then select the original image matching the integrated busbar pattern in the hot riveting equipment and wait for processing;

[0010] c. Alignment of the pattern and the part to be processed: The hot riveting equipment is ready to start hot riveting the integrated busbar, and the hot riveting equipment automatically adjusts the starting position of the hot riveting mechanism in the hot riveting equipment to adapt to the integrated busbar placed in;

[0011] d. Start formal processing: the hot riveting mechanism processes the equal-row hot riveting points and the independent hot riveting points; or processes the equal-row hot riveting points first and then the independent hot riveting points;

[0012] e. Processing completed: Take out the processed integrated busbar and place it in the storage box.

[0013] The pattern input in this application does not need to be updated and stored in real time through image acquisition equipment. It only needs to input one or two patterns into the hot riveting equipment through computer equipment, and manually adjust the parameters of the relevant patterns for hot riveting when using. The technicians classify and process the neat equal-row rivet studs and some independent FPC&NTC rivet studs in the rivet studs, and use equal-row rivet heads for hot riveting of the equal-row rivet studs, and use independent rivet heads for hot riveting of the FPC&NTC rivet studs.

[0014] In an operative embodiment, in step a, there are at least two original images of the integrated busbar to be hot-riveted, that is, the spacing between the hot riveting points in the equal array of hot riveting points in the original image has at least two sizes. In the present application, the spacing between the hot riveting points in the array has two parameters, which are stored in advance in the hot riveting device.

[0015] In an embodiment, in step c, some rivet heads in the hot riveting mechanism are adjusted to the starting positions of the equal-row hot riveting points as equal-row rivet heads;

[0016] Adjust some rivet heads in the hot riveting mechanism to the starting position of the independent hot riveting point as independent hot riveting heads. The starting position is based on the benchmark setting of the hot riveting equipment.

[0017] In an operative embodiment, in step c, the equal-row riveting heads and the equal-row hot riveting points are all aligned.

[0018] In an operative embodiment, in step c, the equal-row rivet heads are partially aligned with the equal-row hot rivet points; in step d, the positions of the equal-row rivet heads are adjusted during operation according to the pattern in step a.

[0019] In a possible implementation manner, the equal-row hot riveting points are aluminum bar rivet columns, which are arranged in 2, 4 or 8 rows.

[0020] In an embodiment, the independent hot riveting points are FPC & NTC rivet posts.

[0021] Compared with the prior art, the present invention has the following beneficial effects:

[0022] In the technical solution of the present application, the application scenario is the integrated busbar hot riveting process, in which the integrated busbar is a standardized product. In the solution of the present application, there are only two models. It is only necessary to input the data of the two directly into the hot riveting equipment through the relevant software. There is no need to install a visual imaging system on the hot riveting equipment to read the shape data of non-standard products in real time and input it into the hot riveting equipment, which saves costs. The points that need hot riveting are arranged, the linear riveting points are arranged as columnar riveting columns for unified hot riveting, and the riveting points outside the linear law are arranged as scattered riveting columns for single-point hot riveting; the hot riveting points improve the hot riveting efficiency of the integrated busbar through the above arrangement, and improve the flexibility of hot riveting, while also reducing energy consumption. DETAILED DESCRIPTION

[0023] In the existing embodiments, the traditional methods of fixing and riveting the multi-purpose blister isolation plate or injection molding isolation plate for fixing the aluminum bar of the CCS busbar of the new energy battery and the FPCA are mainly single-point hot riveting and whole-plate hot riveting; the process of single-point hot riveting is: heating and riveting through a single rivet head. Although this process has a certain flexibility, it can only be operated at a single point, the CT is very long, and the production efficiency is low. The process of hot riveting the whole plate is: heating and riveting through multiple rivet heads at one time. Although this process can hot-rivet all the rivet heads of the product at one time, it requires the production of special tooling, and different tooling needs to be replaced for different products, resulting in high equipment costs.

[0024] The embodiments provided in this application are as follows:

[0025] Embodiment 1, a CCS hot riveting process, comprising the following steps:

[0026] a. Image input: Input the original image of the integrated busbar to be hot-riveted into the hot-riveting equipment; the hot-riveting point coordinates in the original image are divided into equal-row hot-riveting points and independent hot-riveting points;

[0027] b. Place the parts to be processed: Place the integrated busbar to be hot-riveted into the hot riveting equipment; then select the original image matching the integrated busbar pattern in the hot riveting equipment and wait for processing;

[0028] c. Alignment of the pattern and the part to be processed: The hot riveting equipment is ready to start hot riveting the integrated busbar, and the hot riveting equipment automatically adjusts the starting position of the hot riveting mechanism in the hot riveting equipment to adapt to the integrated busbar placed in;

[0029] d. Start formal processing: the hot riveting mechanism processes the equal-row hot riveting points and the independent hot riveting points; or processes the equal-row hot riveting points first and then the independent hot riveting points;

[0030] e. Processing completed: Take out the processed integrated busbar and place it in the storage box.

[0031] In this embodiment, in step a, the hot riveting point spacing within the middle row of hot riveting points in the original image of the integrated busbar to be hot riveted is 5 mm.

[0032] In this embodiment, in step c, some of the rivet heads in the hot riveting mechanism are adjusted to the starting position of the equal-row hot riveting points as equal-row rivet heads; some of the rivet heads in the hot riveting mechanism are adjusted to the starting position of the independent hot riveting points as independent hot riveting heads. The equal-row rivet heads and the equal-row hot riveting points are all aligned.

[0033] In this embodiment, according to the characteristics of CCS products, the equal-row hot riveting points are aluminum bar riveting posts, which are arranged in 2, 4 or 8 rows. The independent hot riveting points are FPC & NTC riveting posts.

[0034] Embodiment 2, a CCS hot riveting process, comprising the following steps:

[0035] a. Image input: Input the original image of the integrated busbar to be hot-riveted into the hot-riveting equipment; the hot-riveting point coordinates in the original image are divided into equal-row hot-riveting points and independent hot-riveting points;

[0036] b. Place the parts to be processed: Place the integrated busbar to be hot-riveted into the hot riveting equipment; then select the original image matching the integrated busbar pattern in the hot riveting equipment and wait for processing;

[0037] c. Alignment of the pattern and the part to be processed: The hot riveting equipment is ready to start hot riveting the integrated busbar, and the hot riveting equipment automatically adjusts the starting position of the hot riveting mechanism in the hot riveting equipment to adapt to the integrated busbar placed in;

[0038] d. Start formal processing: the hot riveting mechanism processes the equal-row hot riveting points and the independent hot riveting points; or processes the equal-row hot riveting points first and then the independent hot riveting points;

[0039] e. Processing completed: Take out the processed integrated busbar and place it in the storage box.

[0040] In this embodiment, in step a, the hot riveting point spacing within the middle row of hot riveting points in the original image of the integrated busbar to be hot riveted is 8 mm.

[0041] In this embodiment, in step c, some rivet heads in the hot riveting mechanism are adjusted to the starting position of the equal-row hot riveting point as equal-row rivet heads; some rivet heads in the hot riveting mechanism are adjusted to the starting position of the independent hot riveting point as independent hot riveting heads. The equal-row rivet heads are partially aligned with the equal-row hot riveting points. And in step d, the positions of the equal-row rivet heads are adjusted according to the pattern in step a during operation.

[0042] In this embodiment, according to the characteristics of CCS products, the equal-row hot riveting points are aluminum bar riveting posts, which are arranged in 2, 4 or 8 rows. The independent hot riveting points are FPC & NTC riveting posts.

[0043] The above two embodiments rely on the rapid hot riveting function of the infrared heating rivet head. The lateral spacing is changed by programming to meet the diverse production of different spacings. The side-by-side hot riveting of multiple rivet heads plus the rapid riveting of infrared hot riveting optimize the working hours and improve the efficiency of riveting production.

[0044] Although the embodiments of the present invention have been shown and described above, it is to be understood that the above embodiments are exemplary and are not to be construed as limitations of the present invention. A person skilled in the art may change, modify, replace and vary the above embodiments within the scope of the present invention.

[0045] In the description of this specification, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships, which are only for the convenience of describing the technical solution of this patent and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on this patent application.

[0046] In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of this patent application, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0047] In this specification, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in this specification can be understood according to specific circumstances.

[0048] In this specification, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0049] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0050] Although the embodiments of the present invention have been shown and described above, it is to be understood that the above embodiments are exemplary and are not to be construed as limitations of the present invention. A person skilled in the art may change, modify, replace and vary the above embodiments within the scope of the present invention.

Claims

1. A CCS hot riveting process, characterized in that: Including steps such as: a. Image input: input the original image of the integrated busbar to be hot riveted into the hot riveting equipment; The hot riveting point coordinates in the original image are divided into equal-array hot riveting points and independent hot riveting points; b. Place the parts to be processed: Place the integrated busbar to be hot-riveted into the hot riveting equipment; then select the original image matching the integrated busbar pattern in the hot riveting equipment and wait for processing; c. Alignment of the pattern and the part to be processed: The hot riveting equipment is ready to start hot riveting the integrated busbar, and the hot riveting equipment automatically adjusts the starting position of the hot riveting mechanism in the hot riveting equipment to adapt to the integrated busbar placed in; d. Start formal processing: the hot riveting mechanism processes the equal-row hot riveting points and the independent hot riveting points; or processes the equal-row hot riveting points first and then the independent hot riveting points; e. Processing completed: Take out the processed integrated busbar and place it in the storage box.

2. The CCS hot riveting process according to claim 1 is characterized in that: In step a, there are at least two original images of the busbar to be hot-riveted and integrated, that is, the hot-riveting point spacings within the equal-array hot-riveting points in the original image have at least two sizes.

3. The CCS hot riveting process according to claim 2 is characterized in that: In step c, some rivet heads in the hot riveting mechanism are adjusted to the starting positions of the equal-row hot riveting points as equal-row rivet heads; Adjust some rivet heads in the hot riveting mechanism to the starting position of the independent hot riveting point as independent hot riveting heads.

4. The CCS hot riveting process according to claim 3 is characterized in that: In step c, the equal-row rivet heads and the equal-row hot riveting points are all aligned.

5. The CCS hot riveting process according to claim 3, characterized in that: In step c, the equal-row rivet head is partially aligned with the equal-row hot rivet point; in step d, the equal-row rivet head is adjusted in position according to the pattern in step a during operation.

6. The CCS hot riveting process according to claim 4 or 5, characterized in that: The equal-row hot riveting points are aluminum bar rivet columns, which are arranged in 2, 4 or 8 rows.

7. The CCS hot riveting process according to claim 6, characterized in that: Independent hot riveting points for FPC & NTC rivet studs.