A multi-material welded wire process

Abstract

The application discloses a multi-material welding connecting process, which comprises the following steps: step one, a metal material belt is conveyed by using an automatic feeder, and the metal material belt is punched by a first punch to form a punched part with a required shape in the edge of the metal material belt, and the metal material belt and the punched part are in an integrated state; step two, the metal material belt passes through a cleaning machine to clean the punched part; step three, a welding area is provided with one or more welding units distributed along the conveying direction of the metal material belt, the welding unit is provided with a welding machine and a feeder, the metal material belt passes through the welding unit, the punched part enters the welding machine, the feeder supplies the welding machine with to-be-welded loose materials, the to-be-welded loose materials are arranged on the punched part, and the welding machine welds and assembles the punched part and the to-be-welded loose materials to form a welded body; and step four, the metal material belt passes through a second punch to cut off the welded body from the edge material of the metal material belt. The application can link multiple processes together, reduce labor cost, and improve production efficiency and precision.

Description

Technical Field

[0001] This invention relates to the technical field of welding technology, and in particular to a multi-material welding line process. Background Technology

[0002] Some consumer electronics products have metal bracket components composed of multiple parts, many of which are formed by stamping. Furthermore, these multiple parts are assembled by welding to form the metal bracket components.

[0003] The product has high requirements for its size and appearance. The traditional production process for similar products involves stamping bulk materials, cleaning bulk materials, step-by-step welding, and full inspection. The stamping, cleaning, welding, and assembly sections require a large number of workers, resulting in low output per person and low production efficiency. Summary of the Invention

[0004] This invention aims to at least solve one of the technical problems existing in the prior art. To this end, this invention proposes a multi-material welding line process that can link multiple processes together, reducing space occupation, reducing labor costs, and improving production efficiency and precision.

[0005] According to a first aspect of the present invention, a multi-material welding line process includes: Step 1, conveying a metal strip using an automatic feeder, the metal strip being stamped by a first punch press to form a stamped part of a desired shape within the edge of the metal strip, and the metal strip and the stamped part being integral; Step 2, the metal strip passing through a cleaning machine to clean the stamped part; Step 3, the welding area having one or more welding units distributed along the conveying direction of the metal strip, each welding unit being equipped with a welding machine and a feeder, the metal strip passing through the welding unit to allow the stamped part to enter the welding machine, the feeder supplying the welding machine with loose material to be welded, the loose material to be welded being placed on the stamped part, the welding machine welding the stamped part and the loose material to be welded to assemble them into a welded body, the welded body moving out of the welding area along with the metal strip; Step 4, the metal strip being cut by a second punch press to cut the welded body from the edge of the metal strip.

[0006] A multi-material welding wire connection process according to an embodiment of the present invention has at least the following beneficial effects:

[0007] 1. This invention uses a first punch press to stamp a metal strip, forming a stamped part of the desired shape within the edge of the metal strip. The stamped part does not detach from the edge of the metal strip, and the metal strip and the stamped part are integrated, allowing the stamped part to move with the metal strip. The metal strip sequentially passes through a cleaning box, a welding area, and a second punch press to obtain the desired product. Compared with traditional production processes, this invention eliminates the need for sequential cleaning, welding, and assembly after stamping out loose material. It links multiple processes such as cleaning, welding, and cutting together, thereby reducing space occupation, reducing labor costs, and improving production efficiency and precision.

[0008] 2. By setting up one or more welding units, each welding unit is equipped with a welding machine and a feeding machine. The feeding machine feeds different material parts to the stamping part, and the welding machine welds the different material parts onto the stamping part. Thus, the feeding and welding can be automated, improving production efficiency, reducing manpower, and increasing product yield.

[0009] 3. This invention uses a second punch to cut the metal strip, cutting the welded body from the edge of the metal strip and separating the welded body to obtain a single welded body. This avoids directly stamping loose materials, thus avoiding manual handling and movement of stamped loose materials. It also eliminates the need to weld different materials into the stamped loose materials step by step, thereby realizing an automated one-piece assembly process in the stamping, cleaning, step welding, and full inspection processes.

[0010] According to some embodiments of the present invention, the stamped part is I-shaped, the stamped part has two oppositely arranged transverse segments and a vertical segment connecting the two transverse segments, the transverse segments are connected to the edge material of the metal strip, the loose material to be welded is one of a nut and a profile, the nut is welded to the transverse segment and the vertical segment respectively, and the profile is also welded to the vertical segment, the profile being arranged along the length direction of the vertical segment.

[0011] According to some embodiments of the present invention, two welding units are provided, and the stamped part enters the two welding units in sequence. In the first welding unit, the feeder places the profile on the stamped part, and the welding machine welds the profile on the stamped part. In the second welding unit, the feeder places the nut on the stamped part, and the welding machine pre-welds the nut on the stamped part.

[0012] According to some embodiments of the present invention, a repair welding area is further included, which is disposed in the discharge direction of the welding area, and a welding machine is provided in the repair welding area, which performs repair welding on the nut on the stamped part.

[0013] According to some embodiments of the present invention, the welding area is equipped with a laser engraving machine, which engraves a QR code on the vertical segment.

[0014] According to some embodiments of the present invention, the method further includes step five: placing the weld body cut from the metal strip onto a tray; then, removing the weld body from the tray; placing the weld body into an AOI inspection device for inspection; and packaging the weld body after confirming that there are no problems.

[0015] Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0016] The above and / or additional aspects and advantages of the present invention will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0017] Figure 1 This is a schematic flowchart of a multi-material welding connection process according to an embodiment of the present invention;

[0018] Figure 2 for Figure 1 A schematic diagram of a metal strip and stamped part in a multi-material welding line process is shown.

[0019] Figure 3 for Figure 1 A schematic diagram of a welded body in a multi-material welding line process is shown.

[0020] Reference numerals: 100-Automatic feeder, 110-Metal strip, 120-First punch press, 130-Stamped part, 140-Cleaning machine, 150-Welding unit, 160-Welding machine, 170-Feeder, 180-Welded body, 190-Second punch press, 200-Horizontal section, 210-Vertical section, 220-Nut, 230-Profile, 240-Repair welding area, 250-Laser engraving machine, 260-Tray disc, 270-AOI inspection equipment. Detailed Implementation

[0021] Embodiments of the present invention are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0022] In the description of this invention, it should be understood that the orientation descriptions, such as up, down, front, back, left, right, etc., are based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting this invention.

[0023] In the description of this invention, "several" means one or more, "more than" means two or more, "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" are understood to include the stated number. The use of "first" and "second" in the description is merely for distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the number of indicated technical features, or implicitly indicating the order of the indicated technical features.

[0024] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0025] A multi-material welding connection process according to an embodiment of the present invention is described below with reference to the accompanying drawings.

[0026] Reference Figure 1 A multi-material welding connection process according to an embodiment of the present invention includes the following steps:

[0027] Step 1: Use an automatic feeder 100 to transport metal strip 110. The metal strip 110 is stamped by the first punch press 120, so that the metal strip 110 is formed into a stamped part 130 of the required shape within the edge of the metal strip 110, and the metal strip 110 and the stamped part 130 are integrated.

[0028] Step 2: The metal strip 110 passes through the cleaning machine 140, which cleans the stamped part 130.

[0029] Step 3: The welding area has one or more welding units 150 distributed along the conveying direction of the metal strip 110. Each welding unit 150 is equipped with a welding machine 160 and a feeder 170. The metal strip 110 passes through the welding unit 150, causing the stamped part 130 to enter the welding machine 160. The feeder 170 supplies the bulk material to be welded to the welding machine 160, so that the bulk material to be welded is placed on the stamped part 130. The welding machine 160 welds and assembles the stamped part 130 and the bulk material to be welded to form a welded body 180. The welded body 180 moves out of the welding area along with the metal strip 110.

[0030] Step four: The metal strip 110 is punched by the second punch press 190, so that the weld body 180 is cut off from the edge of the metal strip 110.

[0031] In some embodiments of the present invention, reference is made to... Figure 2 and Figure 3 The stamped part 130 is I-shaped and has two horizontal sections 200 arranged opposite each other and a vertical section 210 connecting the two horizontal sections 200. The horizontal sections 200 are connected to the edge material of the metal strip 110. The loose material to be welded is either a nut 220 or a profile 230. Nuts 220 are welded to the horizontal sections 200 and the vertical section 210 respectively. Profile 230 is also welded to the vertical section 210. Profile 230 is arranged along the length direction of the vertical section 210.

[0032] Therefore, the stamped part 130 is formed by two horizontal sections 200 and a vertical section 210 to form an I-shape, and its structure is symmetrical. Moreover, the nut 220 and the profile 230 are reasonably distributed on the stamped part 130, so that the stamped part 130 can move more smoothly with the metal strip 110.

[0033] In some embodiments of the present invention, two welding units 150 are provided, and the stamped part 130 enters the two welding units 150 in sequence. In the first welding unit 150, the feeder 170 places the profile 230 on the stamped part 130, and the welding machine 160 welds the profile 230 to the stamped part 130. In the second welding unit 150, the feeder 170 places the nut 220 on the stamped part 130, and the welding machine 160 pre-welds the nut 220 to the stamped part 130.

[0034] Since profile 230 and nut 220, two different materials, need to be welded onto stamping part 130, profile 230 and nut 220 need to be welded and assembled separately.

[0035] Furthermore, the profile 230 has a large contact area with the stamped part 130, and the vertical section 210 is relatively narrow. Welding the profile 230 onto the vertical section 210 of the stamped part 130 first helps to improve the strength of the stamped part 130. Welding multiple nuts 220 onto the horizontal section 200 and the vertical section 210 helps to reduce the deformation problem of the stamped part 130 during welding. Welding the nuts 220 first causes local deformation of the stamped part 130, which may reduce the contact area between the profile 230 and the stamped part 130, making it easy to have poor welding quality.

[0036] In some embodiments of the present invention, a repair welding area 240 is also included. The repair welding area 240 is located in the discharge direction of the welding area. The repair welding area 240 is equipped with a welding machine 160. The welding machine 160 repairs the nut 220 on the stamping part 130, thereby improving the welding strength. Moreover, welding the nut 220 in stages is also beneficial to reduce the problem of nut 220 welding skew.

[0037] In some embodiments of the present invention, a laser engraving machine 250 is provided in the welding area, and the laser engraving machine 250 laser engraves QR codes on the vertical segment 210, thereby meeting product requirements.

[0038] In some embodiments of the present invention, a fifth step is also included: placing the weld body 180 cut from the metal strip 110 onto the tray 260; then, removing the weld body 180 from the tray 260; placing the weld body 180 into the AOI inspection equipment 270 for inspection; and after the inspection is completed without any problems, packaging the weld body 180, thereby improving the automation level of product inspection.

[0039] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0040] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present invention.

Claims

1. A multi-material welding connection process, characterized in that, include: Step 1: Use an automatic feeder (100) to transport a metal strip (110). The metal strip (110) is stamped by a first punch press (120) to form a stamped part (130) of the required shape within the edge of the metal strip (110), and the metal strip (110) and the stamped part (130) are in an integral state. Step 2: The metal strip (110) passes through the cleaning machine (140) to clean the stamped part (130). Step 3: The welding area has one or more welding units (150) distributed along the conveying direction of the metal strip (110). Each welding unit (150) is equipped with a welding machine (160) and a feeder (170). The metal strip (110) passes through the welding unit (150) and causes the stamped part (130) to enter the welding machine (160). The feeder (170) supplies the bulk material to be welded to the welding machine (160) so that the bulk material to be welded is placed on the stamped part (130). The welding machine (160) welds and assembles the stamped part (130) and the bulk material to be welded to form a welded body (180). The welded body (180) moves out of the welding area along with the metal strip (110). Step four, the metal strip (110) is punched by the second punch (190) so that the welded body (180) is cut from the edge of the metal strip (110); The stamped part (130) is I-shaped and has two opposing transverse sections (200) and a vertical section (210) connecting the two transverse sections (200). The transverse sections (200) are connected to the edge material of the metal strip (110). The loose materials to be welded are nuts (220) and profiles (230). The nuts (220) are welded to the transverse sections (200) and the vertical sections (210), and the profiles (230) are also welded to the vertical sections (210). The profiles (230) are arranged along the length direction of the vertical sections (210). There are two welding units (150). The stamped part (130) enters the two welding units (150) in sequence. In the first welding unit (150), the feeder (170) places the profile (230) on the stamped part (130), and the welding machine (160) welds the profile (230) on the stamped part (130). In the second welding unit (150), the feeder (170) places the nut (220) on the stamped part (130), and the welding machine (160) pre-welds the nut (220) on the stamped part (130).

2. The multi-material welding connection process according to claim 1, characterized in that, It also includes a repair welding area (240), which is located in the discharge direction of the welding area. The repair welding area (240) is equipped with a welding machine (160), which performs repair welding on the nut (220) on the stamping part (130).

3. The multi-material welding connection process according to claim 1, characterized in that, The welding area is equipped with a laser engraving machine (250), which engraves QR codes on the vertical segment (210).

4. The multi-material welding connection process according to claim 1, characterized in that, The process also includes step five, where the weld body (180) cut from the metal strip (110) is placed on a tray (260), and then the weld body (180) is removed from the tray (260). The weld body (180) is then placed in an AOI inspection device (270) for inspection. After the inspection is completed without any problems, the weld body (180) is packaged.

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