A welding device for LED light strips
By using modular design and precisely positioned welding heads, the problems of low efficiency and compatibility of LED strip welding devices have been solved, achieving efficient and stable welding results while reducing maintenance difficulty and cost.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHENZHEN SEPITEK TECH CO LTD
- Filing Date
- 2025-07-17
- Publication Date
- 2026-06-30
AI Technical Summary
Existing LED strip welding technology suffers from low operating efficiency, welding quality that depends on worker experience, poor weld consistency, and fixed structure of automated equipment that is difficult to adapt to different specifications of LED strips, resulting in complex maintenance and increased operating costs.
A welding device for LED light strips was designed, which adopts a modular and detachable structure. Through the elastic cooperation of the fixing rod and the fixing spring, it can be adapted to light strips of different specifications. The welding head achieves precise positioning and adjustment through the sliding cooperation between the sliding plate and the connecting frame. The electric push rod drives the sliding plate to rise and fall vertically, and cooperates with the moving rod to achieve lateral movement, ensuring welding quality and efficiency.
It improves welding quality and efficiency, reduces maintenance costs, and enhances the flexibility and versatility of the equipment to meet different production needs.
Smart Images

Figure CN224424688U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of LED light strip technology, specifically to a welding device for LED light strips. Background Technology
[0002] In the field of modern lighting and display technology, LED light strips are widely used in indoor and outdoor decorative lighting, display manufacturing, automotive lighting and other scenarios due to their advantages such as low energy consumption, long lifespan and high luminous efficiency. As the core link in the production of LED light strips, the welding process directly determines the electrical connection stability, light emission uniformity and service life of the light strip. High-quality welding can not only ensure a reliable electrical connection between the LED chip and the circuit board, but also effectively reduce contact resistance and reduce the risk of heat generation, thereby improving the overall performance of the light strip. Therefore, the development of high-precision and high-reliability LED light strip welding equipment has become the key to ensuring product quality and production efficiency.
[0003] Currently, traditional LED strip welding technology mostly uses manual welding or simple automated equipment. Manual welding suffers from low operating efficiency, welding quality depends on worker experience, and poor solder joint consistency, which can easily lead to defects such as incomplete soldering and short circuits, affecting product qualification rate. While some automated equipment can improve welding efficiency, they generally have the disadvantages of fixed structure and insufficient flexibility, making it difficult to adapt to the production needs of different specifications of LED strips. In addition, traditional equipment is difficult to maintain, and the complex integrated structure makes troubleshooting and component replacement time-consuming and labor-intensive, increasing the company's operating costs and downtime risks. To address these issues, we propose an LED strip welding device. Utility Model Content
[0004] Technical problems to be solved
[0005] To address the shortcomings of existing technologies, this invention provides a welding device for LED light strips, which solves the aforementioned problems.
[0006] (II) Technical Solution
[0007] To achieve the above-mentioned objectives, this utility model provides the following technical solution: a welding device for LED light strips, comprising an LED light strip placement frame, a first support frame, a second support frame, and a welding head. The LED light strip placement frame has first support frames on both sides of its bottom. The top of the first support frame has a mounting frame. The top of the mounting frame has a fixing cylinder. The fixing cylinder contains a fixing rod and a fixing spring. The end of the fixing rod passes through the fixing cylinder and is positioned above the LED light strip placement frame. The cylindrical surface of the fixing rod has a positioning cylinder that passes through the fixing cylinder. A connecting rod is inserted and fixed inside the positioning cylinder. A fixing screw head is threaded onto the connecting rod. The bottom of the LED light strip placement frame has a second support frame at its center. The top of the second support frame has a connecting frame inserted. The top of the connecting frame has an electric push rod. The output shaft of the electric push rod passes through the connecting frame and is connected to a sliding plate. A welding head is slidably mounted on the sliding plate. Movable rods are provided at both ends of the LED light strip placement frame, and these moving rods slide and engage with the sides of the connecting frame.
[0008] Preferably, the top of the second support frame is provided with mutually symmetrical fixing blocks, the top of the fixing blocks is provided with mutually symmetrical positioning holes, and the fixing blocks are provided with rectangular connecting holes. The connecting holes are connected to the positioning holes. The bottom of both sides of the connecting frame is provided with threaded posts, which are inserted into the positioning holes and screwed into the connecting holes by nuts to form a threaded engagement with the threaded posts.
[0009] Preferably, the connecting frame has T-shaped sliding grooves on both sides inside, and the sliding grooves pass through both ends of the connecting frame. The sliding plate has T-shaped sliding blocks at both ends, and the sliding blocks slide in cooperation with the sliding grooves. A welding head is slidably installed on the sliding plate, and a moving rod is provided at both ends of the welding head. The moving rods slide in cooperation with both ends of the connecting frame through the sliding grooves.
[0010] Preferably, the top of the first support frame is provided with a door-shaped mounting frame, the top of the inner part of the mounting frame is provided with mutually symmetrical fixing cylinders, and the two ends of the mounting frame are provided with lifting fixing grooves, which extend through the two ends of the mounting frame into the interior of the fixing cylinders.
[0011] Preferably, a fixing spring is sleeved on the cylindrical surface of the fixing rod, a positioning cylinder is provided on one side of the cylindrical surface of the fixing rod, the fixing rod and the fixing spring are disposed inside the fixing cylinder, the positioning cylinder is slidably engaged through the lifting fixing groove, the end of the connecting rod is provided with a plug-in end, the plug-in end is inserted into the inside of the positioning cylinder for fixed connection, and the plug-in end is disposed in the lifting fixing groove for slidable engagement, a fixing screw head is threaded on the plug-in end, and a fixing rubber block is provided at the bottom end of the fixing rod.
[0012] Preferably, the LED light strip placement rack is disposed at the top of the first support frame and the second support frame, and the two ends of the LED light strip placement rack are fixedly connected to the first support frame and the second support frame by bolts. The top of the LED light strip placement rack is provided with an LED light strip placement groove, wherein the fixing rubber block and welding head at the bottom of the fixing rod are located above the LED light strip placement groove.
[0013] (III) Beneficial Effects
[0014] Compared with the prior art, the present invention provides a welding device for LED light strips, which has the following advantages:
[0015] 1. The LED strip welding device features precise and efficient welding. Through the elastic cooperation of the fixing rod and the fixing spring, the LED strip can be firmly pressed into the groove of the placement frame. It can also adapt to different specifications of LED strips by adjusting the fixing screw and the connecting rod to ensure the fixing effect. The welding head is installed on the slide plate, and the T-shaped sliding block of the slide plate slides in cooperation with the T-shaped sliding groove of the connecting frame to achieve lateral movement. The electric push rod drives the slide plate to rise and fall vertically, precisely adjusting the distance between the welding head and the LED strip. With the sliding of the moving rod, the welding point is accurately positioned and welded, greatly improving the welding quality and efficiency.
[0016] 2. The welding device for this LED light strip is easy to maintain and flexibly adjust. It adopts a modular and detachable design. The second support frame and the connecting frame are connected by threaded columns, nuts and fixing blocks. The LED light strip placement frame is fixed to the support frame with bolts. When a fault occurs or the layout needs to be adjusted, the components can be quickly separated by simply unscrewing the nuts and bolts, which is convenient for cleaning, maintenance and replacement of parts. At the same time, the device structure can be flexibly adjusted according to different production needs, which significantly reduces maintenance costs and improves the practicality and versatility of the equipment. Attached Figure Description
[0017] Figure 1 This is a schematic diagram of the structure of this utility model;
[0018] Figure 2 This is a cross-sectional view of the structure of this utility model;
[0019] Figure 3 This is a schematic diagram showing the structural breakdown of this utility model;
[0020] Figure 4 This is a schematic diagram showing the disassembled structure of this utility model.
[0021] In the diagram: 1. LED strip holder; 2. First support frame; 3. Fixing rod; 4. Fixing spring; 5. Connecting rod; 6. Fixing screw head; 7. Second support frame; 8. Connecting frame; 9. Electric push rod; 10. Slide plate; 11. Welding head; 12. Moving rod; 13. Mounting frame; 14. Fixing cylinder; 15. Lifting fixing groove; 16. Positioning cylinder; 17. Plug-in end; 18. Fixing block; 19. Positioning hole; 20. Threaded post; 21. Sliding groove; 22. Sliding block. Detailed Implementation
[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0023] Please see Figure 1-4 A welding device for LED light strips includes an LED light strip placement frame 1, a first support frame 2, a second support frame 7, and a welding head 11. The first support frame 2 is provided on both sides of the bottom of the LED light strip placement frame 1. A mounting frame 13 is provided at the top of the first support frame 2. A fixing cylinder 14 is provided at the top of the inner part of the mounting frame 13. A fixing rod 3 and a fixing spring 4 are respectively provided inside the fixing cylinder 14. The end of the fixing rod 3 passes through the fixing cylinder 14 and is positioned above the LED light strip placement frame 1. A positioning cylinder 16 is provided on the cylindrical surface of the fixing rod 3. The LED light strip placement rack 1 has a through-fixed cylinder 14 and a connecting rod 5 is inserted and fixed inside the positioning cylinder 16. A fixing screw head 6 is threaded onto the connecting rod 5. A second support frame 7 is set at the bottom center of the LED light strip placement rack 1. A connecting frame 8 is inserted into the top of the second support frame 7. An electric push rod 9 is set at the top of the connecting frame 8. The output shaft of the electric push rod 9 passes through the connecting frame 8 and is connected to a sliding plate 10. A welding head 11 is slidably installed on the sliding plate 10. Moving rods 12 are set at both ends of the LED light strip placement rack 1. The moving rods 12 slide and engage on both sides of the connecting frame 8.
[0024] Furthermore, the top of the second support frame 7 is provided with mutually symmetrical fixing blocks 18, the top of the fixing blocks 18 is provided with mutually symmetrical positioning holes 19, and the fixing blocks 18 are provided with rectangular connecting holes, which are connected to the positioning holes 19. The bottom ends of both sides of the connecting frame 8 are provided with threaded posts 20, which are inserted into the interior of the positioning holes 19. The nuts are screwed into the interior of the connecting holes to form a threaded engagement with the threaded posts 20, so as to realize the threaded detachable connection between the second support frame 7 and the connecting frame 8, which facilitates device maintenance and structural adjustment.
[0025] Furthermore, the connecting frame 8 has T-shaped sliding grooves 21 on both sides inside, and the sliding grooves 21 pass through both ends of the connecting frame 8. The sliding plate 10 has T-shaped sliding blocks 22 at both ends, and the sliding blocks 22 slide in cooperation with the sliding grooves 21. The welding head 11 is slidably installed on the sliding plate 10, and the welding head 11 has moving rods 12 at both ends. The moving rods 12 slide in cooperation through the sliding grooves 21 through both ends of the connecting frame 8, so as to realize the precise lateral movement and positioning of the welding head 11 in the connecting frame 8.
[0026] Furthermore, the top of the first support frame 2 is provided with a door-shaped mounting frame 13. The top of the inner part of the mounting frame 13 is provided with mutually symmetrical fixing cylinders 14. The two ends of the mounting frame 13 are provided with lifting fixing grooves 15, and the lifting fixing grooves 15 extend through the two ends of the mounting frame 13 to the inside of the fixing cylinders 14. The lifting fixing grooves 15 at both ends of the mounting frame 13 are connected to the fixing cylinders 14, providing guidance and installation space for the lifting and adjustment of the fixing rod 3.
[0027] Furthermore, a fixing spring 4 is sleeved on the cylindrical surface of the fixing rod 3, and a positioning cylinder 16 is provided on one side of the cylindrical surface of the fixing rod 3. The fixing rod 3 and the fixing spring 4 are located inside the fixing cylinder 14. The positioning cylinder 16 is slidably engaged through the lifting fixing groove 15. The end of the connecting rod 5 is provided with a plug-in end 17, which is inserted into the inside of the positioning cylinder 16 for fixed connection. The plug-in end 17 is slidably engaged in the lifting fixing groove 15. A fixing screw head 6 is threaded on the plug-in end 17. A fixing rubber block is provided at the bottom of the fixing rod 3. The extension length of the fixing rod 3 can be elastically adjusted by adjusting the threads of the positioning cylinder 16, the connecting rod 5 and the fixing screw head 6 to adapt to the pressing and fixing of LED light strips of different specifications.
[0028] Furthermore, the LED light strip placement rack 1 is located at the top of the first support frame 2 and the second support frame 7, and both ends of the LED light strip placement rack 1 are fixedly connected to the first support frame 2 and the second support frame 7 by bolts. The top of the LED light strip placement rack 1 is provided with an LED light strip placement groove, wherein the fixing rubber block and welding head 11 at the bottom of the fixing rod 3 are located above the LED light strip placement groove and are fixed to the first support frame 2 and the second support frame 7 by bolts. The LED light strip placement groove at the top accurately positions the light strip and aligns the fixing rubber block and welding head 11 above the light strip, ensuring the stability and accuracy of the welding operation.
[0029] Structural Description:
[0030] LED strip placement bracket 1: As the main load-bearing structure, a strip placement groove is opened at the top to position the strips. It is fixed to the first and second support brackets with bolts to ensure the stability of the strip position during welding.
[0031] First support frame 2: Located on both sides of the bottom of the placement frame, with a gate-shaped mounting bracket 13 at the top, providing installation support for components such as the fixing cylinder 14 and ensuring the stability of the fixing mechanism;
[0032] Fixed rod 3: The end is equipped with a fixed rubber block, which works with the fixed spring 4 to elastically press the light strip. The cylindrical surface is set with positioning cylinder 16, and the extension length can be adjusted by connecting rod 5 to adapt to different light strips;
[0033] Fixed spring 4: It is sleeved on the cylindrical surface of the fixed rod 3 and installed inside the fixed cylinder 14. It uses elastic force to press the fixed rod 3 against the light strip and provides a stable clamping force.
[0034] Connecting rod 5: One end is inserted and fixed to the positioning cylinder 16, and the other end is provided with an insertion end 17, which is threaded through the fixing screw head 6 and used to adjust the lifting height of the fixing rod 3;
[0035] Fixed screw head 6: It is threaded with the connecting rod 5. After tightening, it locks the position of the fixed rod 3. When loosened, the extension length of the fixed rod 3 can be adjusted by moving the connecting rod 5 to achieve flexible adjustment.
[0036] Second support frame 7: Located at the bottom center of the placement frame, with a fixing block 18 at the top, and detachably connected to the connecting frame 8 through positioning holes 19 and threaded posts 20, supporting the welding mechanism;
[0037] Connecting frame 8: An electric push rod 9 is installed at the top and has a T-shaped sliding groove 21 inside, which cooperates with the sliding block 22 of the slide plate 10 to provide a lateral movement track for the welding head 11;
[0038] Electric push rod 9: Installed on the top of the connecting frame 8, the output shaft is connected to the slide plate 10, and the slide plate 10 is driven to rise and fall vertically through telescopic movement to adjust the welding height of the welding head 11;
[0039] Slide plate 10: T-shaped sliding blocks 22 are provided at both ends, which slide and cooperate with the sliding groove 21 of the connecting frame 8 to install the welding head 11, so as to realize the lateral movement and positioning of the welding head;
[0040] Welding head 11: Installed on the slide plate 10, with moving rods 12 at both ends, passing through the connecting frame 8 via the sliding groove 21, and completing precise welding operations under the drive of the electric push rod and the slide plate;
[0041] Moving rod 12: Connects both ends of welding head 11, slides through sliding grooves 21 on both sides of connecting frame 8, assists welding head 11 to move laterally, and ensures accurate welding point position;
[0042] Mounting bracket 13: It is in the shape of a door and is located at the top of the first support frame 2. The top of the inside is equipped with a fixing cylinder 14, and the two ends are opened with lifting fixing grooves 15 to provide installation and adjustment space for the fixing rod 3.
[0043] Fixed cylinder 14: Installed inside the top of the mounting bracket 13, it accommodates the fixed rod 3 and the fixed spring 4, and communicates with the outside through the lifting and fixing groove 15 to guide the fixed rod 3 to rise and fall;
[0044] Lifting and fixing groove 15: It passes through both ends of the mounting frame 13 and connects to the fixing cylinder 14, providing a sliding track for the positioning cylinder 16 and the plug-in end 17 to realize the height adjustment of the fixing rod 3;
[0045] Positioning cylinder 16: It is fitted onto the cylindrical surface of the fixing rod 3, passes through the fixing cylinder 14 and slides in fit with the lifting fixing groove 15, and connects to the connecting rod 5 to adjust the extension length of the fixing rod 3;
[0046] Plug-in end 17: The end structure of the connecting rod 5 is plugged into the positioning cylinder 16 and fixed, and slides with the lifting fixing groove 15. The position of the fixed rod 3 after adjustment is locked by the fixing screw head 6.
[0047] Fixed block 18: Symmetrically arranged at the top of the second support frame 7, with positioning hole 19 and connecting hole, which cooperate with the threaded post 20 of the connecting frame 8 to realize a detachable threaded connection;
[0048] Positioning hole 19: Located at the top of the fixing block 18, it is used to insert the threaded post 20 of the connecting bracket 8, providing initial positioning and ensuring the accuracy of the connecting bracket 8 during installation;
[0049] Threaded column 20: The bottom structure of the connecting frame 8, after being inserted into the positioning hole 19, cooperates with the nut, and fixes the connecting frame 8 to the second support frame 7 through threaded connection, which is convenient for disassembly and maintenance;
[0050] Sliding groove 21: T-shaped sliding grooves are provided on both sides inside the connecting frame 8, extending through both ends, and cooperate with the sliding block 22 of the slide plate 10 to guide the slide plate 10 and the welding head 11 to slide laterally;
[0051] Sliding block 22: T-shaped sliding blocks are provided at both ends of the slide plate 10, which slide and cooperate with the sliding groove 21 of the connecting frame 8 to ensure that the slide plate 10 moves smoothly and accurately positions the welding head 11.
[0052] Working principle: First, the LED light strip is placed in the LED light strip placement slot at the top of the LED light strip placement bracket 1. At this time, the fixing mechanism set in the mounting bracket 13 at the top of the first support bracket 2 begins to function. Under the elastic action of the fixing spring 4, the fixing rod 3 inside the fixing cylinder 14 presses the LED light strip downward with the fixing rubber block at its end. If the height of the fixing rod 3 needs to be adjusted, the fixing screw head 6 can be loosened. By moving the connecting rod 5, the positioning cylinder 16 is driven to slide in the lifting fixing slot 15, thereby changing the extension length of the fixing rod 3. After the adjustment is completed, the fixing screw head 6 is tightened to stabilize the LED light strip. After the LED light strip is fixed, the welding head 11 will perform welding operations on it. The welding head 11 is installed on the slide plate 10. The T-shaped sliding blocks 22 at both ends of the slide plate 10 slide and engage with the T-shaped sliding slots 21 on both sides inside the connecting bracket 8, so that the slide plate 10 can move up and down in the connecting bracket 8. The connecting bracket 8 is inserted into the positioning hole 19 of the fixing block 18 at the top of the second support bracket 7 through the threaded post 20 at the bottom of its two sides, and the nut is screwed into the connecting hole and threaded. The threaded engagement of the column 20 ensures a stable connection with the second support frame 7. During welding, the electric push rod 9 is activated, and its output shaft passes through the connecting frame 8, driving the slide plate 10 to move vertically. This adjusts the distance between the welding head 11 and the LED strip, ensuring that the welding head 11 is at the appropriate welding height. Simultaneously, the moving rods 12 at both ends of the welding head 11 slide within the sliding grooves 21 on both sides of the connecting frame 8, cooperating with the lateral movement of the slide plate 10. This allows the welding head 11 to make precise lateral displacement above the LED strip placement slot, completing the welding work at each welding point of the LED strip. Furthermore, it facilitates structural maintenance and adjustment. The second support frame 7 and the connecting frame 8 are connected through the engagement of the threaded column 20, nut, and fixing block 18. When it is necessary to disassemble or replace parts, simply unscrew the nut to separate the connecting frame 8 from the second support frame 7. The LED strip placement frame 1 is fixed to the first support frame 2 and the second support frame 7 with bolts. During disassembly, the bolts can be unscrewed to separate the components, facilitating cleaning, maintenance, or layout adjustments according to different needs.
[0053] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A welding device of LED light bar, comprising LED light bar placing rack (1), first support rack (2), second support rack (7) and welding head (11), characterized in that: The LED strip holder (1) has a first support frame (2) on both sides of its bottom. The top of the first support frame (2) has a mounting frame (13). The top of the mounting frame (13) has a fixing cylinder (14). The fixing cylinder (14) has a fixing rod (3) and a fixing spring (4) inside. The end of the fixing rod (3) passes through the fixing cylinder (14) and is positioned above the LED strip holder (1). The cylindrical surface of the fixing rod (3) has a positioning cylinder (16). The positioning cylinder (16) passes through the fixing cylinder (14), and a fixing spring (4) is inserted and fixed inside the positioning cylinder (16). A connecting rod (5) is threaded with a fixing screw head (6). A second support frame (7) is set at the bottom center of the LED light strip placement frame (1). A connecting frame (8) is inserted into the top of the second support frame (7). An electric push rod (9) is set at the top of the connecting frame (8). The output shaft of the electric push rod (9) passes through the connecting frame (8) and is connected to a sliding plate (10). A welding head (11) is slidably installed on the sliding plate (10). Moving rods (12) are set at both ends of the LED light strip placement frame (1). The moving rods (12) slide and engage on both sides of the connecting frame (8).
2. The LED light strip welding device according to claim 1, characterized in that: The second support frame (7) has symmetrical fixing blocks (18) at its top end. The fixing blocks (18) have symmetrical positioning holes (19) at their top end. The fixing blocks (18) also have rectangular connecting holes that are connected to the positioning holes (19). The bottom ends of both sides of the connecting frame (8) have threaded posts (20). The threaded posts (20) are inserted into the positioning holes (19) and screwed into the connecting holes by nuts to form a threaded fit with the threaded posts (20).
3. The LED light strip welding device according to claim 2, characterized in that: The connecting frame (8) has T-shaped sliding grooves (21) on both sides inside, and the sliding grooves (21) pass through both ends of the connecting frame (8). The sliding plate (10) has T-shaped sliding blocks (22) at both ends, and the sliding blocks (22) slide in cooperation with the sliding grooves (21). A welding head (11) is slidably installed on the sliding plate (10), and a moving rod (12) is provided at both ends of the welding head (11). The moving rod (12) slides through the sliding grooves (21) and slides in cooperation with both ends of the connecting frame (8).
4. The LED strip welding device according to claim 1, characterized in that: The top of the first support frame (2) is provided with a door-shaped mounting frame (13). The top of the inner part of the mounting frame (13) is provided with mutually symmetrical fixing cylinders (14). The two ends of the mounting frame (13) are provided with lifting fixing grooves (15), and the lifting fixing grooves (15) extend through the two ends of the mounting frame (13) to the inside of the fixing cylinders (14).
5. The LED light strip welding device according to claim 4, characterized in that: A fixing spring (4) is sleeved on the cylindrical surface of the fixing rod (3). A positioning cylinder (16) is provided on one side of the cylindrical surface of the fixing rod (3). The fixing rod (3) and the fixing spring (4) are located inside the fixing cylinder (14). The positioning cylinder (16) is slidably engaged through the lifting fixing groove (15). The end of the connecting rod (5) is provided with a plug-in end (17). The plug-in end (17) is inserted into the inside of the positioning cylinder (16) for fixed connection. The plug-in end (17) is slidably engaged in the lifting fixing groove (15). A fixing screw head (6) is threaded on the plug-in end (17). A fixing rubber block is provided at the bottom end of the fixing rod (3).
6. The LED light strip welding device according to claim 5, characterized in that: The LED light strip placement rack (1) is set at the top of the first support frame (2) and the second support frame (7), and the two ends of the LED light strip placement rack (1) are fixedly connected to the first support frame (2) and the second support frame (7) by bolts. The top of the LED light strip placement rack (1) is provided with an LED light strip placement groove, wherein the fixing rubber block and welding head (11) at the bottom of the fixing rod (3) are located above the LED light strip placement groove.