Full-automatic mobile phone middle frame copper sheet robot spot welding equipment
The fully automated mobile phone frame copper sheet robotic spot welding equipment utilizes components such as laser welding machines and robotic arms to achieve automated and precise welding of copper sheets, solving the problems of low efficiency and low precision of manual welding, improving work efficiency and reducing costs.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- GREATECH MOLD & PLASTIC
- Filing Date
- 2025-05-26
- Publication Date
- 2026-04-28
AI Technical Summary
In existing technologies, the welding of copper sheets in the mid-frame of mobile phones mainly adopts manual jig methods, which results in low work efficiency, high labor costs and low welding precision, making it difficult to meet the high precision requirements of curved screen mobile phones.
The fully automated mobile phone frame copper sheet robotic spot welding equipment utilizes components such as laser welding machines, robotic arms, and positioning fixtures to achieve automatic feeding and precise welding of copper sheets. The welding accuracy is adjusted by a servo motor-driven lifting and translation device, and elastic components are used to avoid incomplete or misaligned welds.
The process of automating copper sheet welding has been achieved, which has improved work efficiency, reduced labor costs, ensured welding accuracy, and avoided incomplete or misaligned welding, thus meeting the high precision requirements of curved screen mobile phones.
Smart Images

Figure CN224168988U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of automation technology, specifically to a fully automatic mobile phone mid-frame copper sheet robotic spot welding equipment. Background Technology
[0002] In mobile phone manufacturing, copper sheets are welded into the phone's frame, primarily to improve heat dissipation and electromagnetic shielding. This also enhances the structural strength of the casing, ensuring stable operation and performance. Furthermore, it provides excellent electromagnetic shielding. With the continuous upgrading of mobile phone manufacturing processes, especially for curved screen phones, copper sheets are often used as contact points. These copper sheets are welded onto the curved surface of aluminum alloy to serve as contact points.
[0003] Currently, when spot welding copper sheets to the mid-frame of mobile phones, manual spot welding with fixtures is mainly used because the copper sheets are small in size. However, this method has the disadvantages of being difficult to handle manually, resulting in low work efficiency and high labor costs. Moreover, manual welding cannot guarantee the positional accuracy of the copper sheets, causing defective products such as incomplete or misaligned welds. To address this issue, a fully automatic robotic spot welding device for copper sheets in the mid-frame of mobile phones is needed. Utility Model Content
[0004] To address the shortcomings of existing technologies, this utility model provides a fully automatic robotic spot welding device for copper sheets in mobile phone mid-frames, which solves the problems mentioned in the background section.
[0005] To achieve the above objectives, this utility model is implemented through the following technical solution: a fully automatic mobile phone mid-frame copper sheet robotic spot welding equipment, including a welding table and a robotic arm frame. A laser welding machine is installed on the top of the welding table via a lifting device. A mobile phone mid-frame positioning fixture is also installed on the top of the welding table via a translation device. A robotic arm and a copper sheet feeding feeder are installed on the top of the robotic arm frame. A copper sheet suction and flipping device is installed on one side of the copper sheet feeding feeder. A copper sheet welding and feeding fixture is installed at the movable end of the robotic arm.
[0006] Optionally, the mobile phone mid-frame positioning fixture includes a mounting base, a mid-frame placement inclined plate, positioning posts, a side positioning cylinder, and a corner positioning cylinder. The mounting base is provided with a mid-frame placement inclined plate on its top, and a plurality of positioning posts are provided on the surface of the mid-frame placement inclined plate. A side positioning cylinder is provided on one side of the mid-frame placement inclined plate, and a corner positioning cylinder is provided on the mid-frame placement inclined plate.
[0007] Optionally, the copper sheet welding and feeding fixture includes a connecting arm, an elastic component, and a copper sheet suction nozzle. One end of the connecting arm is provided with an elastic component, and the movable part of the elastic component is provided with a copper sheet suction nozzle.
[0008] Optionally, both the lifting device and the translation device are driven by servo motors.
[0009] Optionally, a warning light is also provided on the top of the robotic arm frame.
[0010] This utility model provides a fully automatic robotic spot welding device for copper sheets in the mid-frame of mobile phones, which has the following beneficial effects:
[0011] 1. This fully automatic mobile phone frame copper sheet robotic spot welding equipment automatically feeds copper sheets through a copper sheet feeding feeder and a copper sheet picking and flipping device. Then, the copper sheet is picked up by the copper sheet welding loading fixture on the robotic arm, placed and pressed on the copper sheet welding position of the mobile phone frame, and then welded by a laser welding machine. The elastic component in the copper sheet welding loading fixture can effectively avoid damage to the copper sheet or product caused by poor soldering, misaligned soldering, and hard contact by elastically pressing the copper sheet.
[0012] 2. This fully automatic mobile phone frame copper sheet robotic spot welding equipment utilizes a laser welding machine that can be driven to rise and fall via a lifting device to precisely adjust the laser welding focal length. A translation device drives the mobile phone frame positioning fixture to adjust the position of the mobile phone frame, ensuring that the welding points of the copper sheets align with the laser welding point, guaranteeing the welding position accuracy of the copper sheets. The positioning columns within the mobile phone frame positioning fixture, along with side positioning cylinders and corner positioning cylinders, ensure precise placement of the mobile phone frame, further improving welding accuracy. This equipment enables fully automatic welding of copper sheets for mobile phone frames, effectively avoiding the difficulties of manual handling, improving work efficiency, and reducing labor costs. Attached Figure Description
[0013] Figure 1 This is a schematic diagram of the structure of this utility model;
[0014] Figure 2 This is a top view structural diagram of the present invention;
[0015] Figure 3 This is a schematic diagram of the positioning fixture for the mobile phone frame of this utility model;
[0016] Figure 4 This is a schematic diagram of the copper sheet welding and feeding fixture of this utility model.
[0017] In the diagram: 1. Welding table; 2. Robotic arm frame; 3. Laser welding machine; 4. Translation device; 5. Mobile phone mid-frame positioning fixture; 501. Mounting base; 502. Mid-frame placement inclined plate; 503. Positioning column; 504. Side positioning cylinder; 505. Corner positioning cylinder; 6. Robotic arm; 7. Copper sheet feeding feeder device; 8. Copper sheet suction and flipping device; 9. Copper sheet welding loading fixture; 901. Connecting arm; 902. Elastic component; 903. Copper sheet suction nozzle; 10. Lifting device. Detailed Implementation
[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.
[0019] Please see Figures 1 to 4 This utility model provides a technical solution: a fully automatic mobile phone frame copper sheet robotic spot welding equipment, including a welding table 1 and a robotic arm frame 2. The top of the robotic arm frame 2 is equipped with a warning light. A laser welding machine 3 is mounted on the top of the welding table 1 via a lifting device 10. The laser welding machine 3 can be driven to rise and fall by the lifting device 10 to precisely adjust the laser welding focal length. A mobile phone frame positioning fixture 5 is also mounted on the top of the welding table 1 via a translation device 4. The translation device 4 can drive the mobile phone frame positioning fixture 5 to translate and adjust the position of the mobile phone frame, ensuring that the welding point of the copper sheet is consistent with the laser point of the laser welding machine 3, thus guaranteeing the welding position accuracy of the copper sheet. Both the lifting device 10 and the translation device 4 are driven by servo motors to improve the driving accuracy of the lifting device 10 and the translation device 4. The mobile phone frame positioning fixture 5 includes an installation... The device includes a base 501, a middle frame placement inclined plate 502, positioning posts 503, a side positioning cylinder 504, and a corner positioning cylinder 505. The top of the base 501 is equipped with the middle frame placement inclined plate 502, and multiple positioning posts 503 are provided on the surface of the middle frame placement inclined plate 502. A side positioning cylinder 504 is provided on one side of the middle frame placement inclined plate 502, and a corner positioning cylinder 505 is provided on the middle frame placement inclined plate 502. The multiple positioning posts 503 prevent the middle frame of the placed mobile phone from sliding down. The side positioning cylinder 504 and the corner positioning cylinder 505 drive the middle frame of the placed mobile phone to approach the positioning posts 503 from the side and the upper right corner for positioning, so as to ensure that the middle frame of the mobile phone is accurately placed in place, further improving the welding accuracy. This device enables fully automatic welding of copper sheets for the middle frame of mobile phones, effectively avoiding the difficulties of manual handling, improving work efficiency, and reducing labor costs.
[0020] The top of the robotic arm frame 2 is equipped with a robotic arm 6 and a copper sheet feeding feeder 7. The copper sheet feeding feeder 7 enables automatic feeding of copper sheets. The movable end of the robotic arm 6 is equipped with a copper sheet welding and feeding fixture 9. The copper sheet welding and feeding fixture 9 includes a connecting arm 901, an elastic component 902, and a copper sheet suction nozzle 903. One end of the connecting arm 901 is equipped with an elastic component 902, which allows the copper sheet suction nozzle 903 to be positioned. The copper sheet suction nozzle 903 is mounted on the movable part of the elastic component 902. By elastically pressing the copper sheet, the copper sheet is effectively prevented from being damaged by poor soldering, misaligned soldering, or hard contact. A copper sheet suction and flipping device 8 is provided on one side of the copper sheet feeding feeder 7. The copper sheet suction and flipping device 8 flips the copper sheet on the copper sheet feeding feeder 7 to facilitate the copper sheet suction nozzle 903 in picking up the copper sheet.
[0021] In this invention, the working steps of the device are as follows:
[0022] First, place the phone frame on the phone frame positioning fixture 5. The corner positioning cylinder 505 pushes the placed phone frame to position it, and then the side positioning cylinder 504 positions the phone frame.
[0023] The copper sheet is automatically fed through the copper sheet feeding feeder device 7. When the copper sheet reaches the picking position, the copper sheet on the copper sheet feeding feeder device 7 is flipped by the copper sheet suction and flipping device 8. Then the robotic arm 6 drives the copper sheet welding and feeding fixture 9 to approach the copper sheet and picks up the copper sheet through the copper sheet suction nozzle 903. Then it is moved to the copper sheet welding position of the mobile phone frame and the copper sheet suction nozzle 903 presses down on the copper sheet.
[0024] The translation device 4 drives the mobile phone mid-frame positioning fixture 5 to move the mobile phone mid-frame to a position below the laser welding machine 3. Then, the lifting device 10 drives the laser welding machine 3 to lift and weld the copper sheet. After the welding is completed, the robotic arm 6 moves away, removes the welded mobile phone mid-frame, and proceeds to weld the next mobile phone mid-frame.
[0025] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.
Claims
1. A fully automatic mobile phone frame copper sheet robotic spot welding equipment, comprising a welding table (1) and a robotic arm frame (2), characterized in that: The top of the welding table (1) is equipped with a laser welding machine (3) via a lifting device (10). The top of the welding table (1) is also equipped with a mobile phone frame positioning fixture (5) via a translation device (4). The top of the robotic arm frame (2) is equipped with a robotic arm (6) and a copper sheet feeding feeder device (7). A copper sheet suction and flipping device (8) is provided on one side of the copper sheet feeding feeder device (7). A copper sheet welding loading fixture (9) is provided at the movable end of the robotic arm (6).
2. The fully automatic mobile phone mid-frame copper sheet robotic spot welding equipment according to claim 1, characterized in that: The mobile phone mid-frame positioning fixture (5) includes a mounting base (501), a mid-frame placement inclined plate (502), positioning posts (503), a side positioning cylinder (504), and a corner positioning cylinder (505). The mounting base (501) is provided with a mid-frame placement inclined plate (502) on its top. The surface of the mid-frame placement inclined plate (502) is provided with multiple positioning posts (503). A side positioning cylinder (504) is provided on one side of the mid-frame placement inclined plate (502), and the corner positioning cylinder (505) is provided on the mid-frame placement inclined plate (502).
3. The fully automatic mobile phone frame copper sheet robotic spot welding equipment according to claim 1, characterized in that: The copper sheet welding and feeding fixture (9) includes a connecting arm (901), an elastic component (902) and a copper sheet suction nozzle (903). One end of the connecting arm (901) is provided with an elastic component (902), and the movable part of the elastic component (902) is provided with a copper sheet suction nozzle (903).
4. The fully automatic mobile phone mid-frame copper sheet robotic spot welding equipment according to claim 1, characterized in that: The lifting device (10) and the translation device (4) are both driven by servo motors.
5. The fully automatic mobile phone mid-frame copper sheet robotic spot welding equipment according to claim 1, characterized in that: The top of the robotic arm frame (2) is also equipped with a warning light.