High-speed wire welding pretreatment and welding method

Abstract

The invention discloses a high-speed wire welding pretreatment and welding method. The method comprises the following steps: preparing at least one high-speed line A and at least one high-speed line B of a section of molding limiting block; mounting the high-speed wire A and the high-speed wire B on a clamp or a jig; performing laser stripping on the shielding layer; performing laser stripping on the insulating layer; the conductor core wire is exposed after laser is completed; cutting the exposed conductor core wire part to reserve a welding end; the exposed conductor core wire welding end of the high-speed wire A is moved to one position of the PCB to be welded with the position; and the limiting block of the high-speed wire B is moved to be close to the limiting block of the high-speed wire A, and meanwhile, the exposed conductor core wire welding end of the high-speed wire B reaches the other position of the PCB to be welded with the position of the PCB.

Description

Technical Field

[0001] The present invention relates to the field of high-speed wire processing, and specifically to a pre-treatment and welding method for high-speed wire welding. Background Art

[0002] When welding a multi-wire harness to a PCB, it is necessary for workers to align the welding ends of the wire arrangement with the PCB pads manually, and use a fixture or high-temperature tape to fix the wires to prevent displacement during the welding process. During the welding process, workers need to manually separate the overlapping parts of the wires, then perform corresponding welding on the wires and the PCB. Next, it is also necessary to realign the separated wires to the corresponding PCB welding positions for welding again. The separated wires are extremely prone to deformation, resulting in difficulties in wire separation and alignment in subsequent processes, increased difficulty in the welding process, difficult control of welding quality, low yield rate, high labor cost, and low processing efficiency. Summary of the Invention

[0003] The purpose of this application is to provide a technical solution to solve the problems raised in the above background art.

[0004] To achieve the above purpose, this application provides the following technical solution:

[0005] A pre-treatment and welding method for high-speed wire welding, including the following steps:

[0006] (1) Prepare at least one high-speed wire A and at least one high-speed wire B with molding limit blocks;

[0007] (2) Install the high-speed wire A and the high-speed wire B on a fixture or jig;

[0008] (3) Perform laser ablation to strip the shielding layer;

[0009] (4) Then perform laser ablation to strip the insulating layer;

[0010] (5) After laser ablation, the conductor core wires are exposed;

[0011] (6) Cut the exposed part of the conductor core wire to reserve a welding end;

[0012] (7) Move the welding end of the exposed conductor core wire of the high-speed wire A to a place on the PCB for welding with it;

[0013] (8) Move the limit block of the high-speed wire B to the limit block of the high-speed wire A and place them adjacent to each other. At the same time, the welding end of the exposed conductor core wire of the high-speed wire B reaches another place on the PCB for welding with it.

[0014] Preferably, the high-speed wire A and the high-speed wire B in step (1) have the same length and the same positions of the molding limit blocks.

[0015] Preferably, the lengths of the high-speed line A and the high-speed line B in the step (1) are different, and the positions of the molding limiting blocks are different.

[0016] Preferably, the number of the high-speed line A in the step (1) and the step (2) is two, and the two high-speed line As are molded together through their limiting blocks, and the number of the high-speed line B is also two, and the two high-speed line Bs are molded together through their limiting blocks.

[0017] Preferably, the number of the high-speed line A in the step (1) and the step (2) is two, and multiple groups of the high-speed line A molded together through their limiting blocks are formed, and the number of the high-speed line B is also two, and multiple groups of the high-speed line B molded together through their limiting blocks are formed; multiple groups of the high-speed line A and multiple groups of the high-speed line B are arranged in rows on the fixture or jig.

[0018] Preferably, after the laser in the step (5) and the step (6) is completed, the number of exposed conductor cores of a single high-speed line A or high-speed line B is between 1 pin and 12 pins.

[0019] Preferably, after the laser in the step (5) and the step (6) is completed, the number of exposed conductor cores of a single high-speed line A or high-speed line B is 2 pins or 4 pins, and the exposed conductor core part is trimmed and shaped to reserve a welding end.

[0020] Preferably, the step (1) may further include at least one high-speed line C with a molding limiting block.

[0021] In summary, the technical effects and advantages of the present invention are as follows:

[0022] A pre-treatment and welding method for high-speed lines. The high-speed lines with molding limiting blocks are arranged in a row on a fixture or jig, and then laser ablation is performed to strip the shielding layer, insulating layer, and wire splitting and shaping are carried out, and the exposed conductor cores are trimmed and shaped to reserve a welding end. The welding ends of a group of high-speed lines with molding limiting blocks are welded to a corresponding position on the PCB. Next, the limiting blocks of another group of high-speed lines are adjacent to the limiting blocks of the first group of high-speed lines, and the limiting blocks are used as positioning points to quickly position the other group of high-speed lines with the PCB. The welding ends of this group of high-speed lines reach another position on the PCB and are welded there. The group of high-speed lines with molding limiting blocks welded is one layer. There is no need to manually separate the overlapping core wires of the wire, and the pre-shaped state of the core wires is maintained, which will not cause deformation of the high-speed lines, making it easy to align the high-speed lines in subsequent processes, reducing the difficulty of the welding process, easy to control the welding quality, high yield rate, saving labor costs, and improving processing efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] To more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the accompanying drawings required for the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description are only some embodiments of the present application. For those skilled in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0024] Figure 1 High-speed wire diagram of the molding limit block for the pre-treatment and welding method of a high-speed wire of the present invention;

[0025] Figure 2 Diagram of the high-speed wire of the pre-treatment and welding method of a high-speed wire of the present invention installed on a fixture or jig;

[0026] Figure 3 Diagram of the welding end reserved for the conductor core wire part of the pre-treatment and welding method of a high-speed wire of the present invention;

[0027] Figure 4 Front view of the positioning welding of the high-speed wire and the PCB in the pre-treatment and welding method of a high-speed wire of the present invention;

[0028] Figure 5 Side view of the positioning welding of the high-speed wire and the PCB in the pre-treatment and welding method of a high-speed wire of the present invention;

[0029] Figure 6 Side view of the overlapping of the high-speed wire A and B limit blocks in the pre-treatment and welding method of a high-speed wire of the present invention;

[0030] Figure 7 Front view of the side-by-side arrangement of the high-speed wire A and B limit blocks in the pre-treatment and welding method of a high-speed wire of the present invention;

[0031] Figure 8 Side view of the side-by-side arrangement of the high-speed wire A and B single-sided welding PCB limit blocks in the pre-treatment and welding method of a high-speed wire of the present invention;

[0032] Figure 9 Side view of the side-by-side arrangement of the high-speed wire A and B front and back welding PCB limit blocks in the pre-treatment and welding method of a high-speed wire of the present invention;

[0033] Figure 10 Side view of the side-by-side arrangement of the high-speed wire A and B limit blocks with unequal lengths in the pre-treatment and welding method of a high-speed wire of the present invention;

[0034] Figure 11 Side view of the overlapping of the high-speed wire A and B limit blocks with unequal lengths in the pre-treatment and welding method of a high-speed wire of the present invention;

[0035] Figure 12For the limit block molding of a pre - treatment and welding method for high - speed wires in the present invention, there are two high - speed wire diagrams;

[0036] Figure 13 For the high - speed wires of a pre - treatment and welding method for high - speed wires in the present invention, the high - speed wires are multi - group core wires diagram;

[0037] Figure 14 For the pre - treatment and welding method for high - speed wires in the present invention, the lengths of the two high - speed wires of the same limit block are not equal diagram;

[0038] Figure 15 For the pre - treatment and welding method for high - speed wires in the present invention, the high - speed wires A and B limit block positioning fixture or jig diagram;

[0039] Figure 16 For the pre - treatment and welding method for high - speed wires in the present invention, the water - drop - shaped 2 - pin high - speed wire diagram;

[0040] Figure 17 For the pre - treatment and welding method for high - speed wires in the present invention, the water - drop - shaped 4 - pin high - speed wire diagram;

[0041] Figure 18 For the limit block molding of a pre - treatment and welding method for high - speed wires in the present invention, there are multiple high - speed wire diagrams;

[0042] Figure 19 For the pre - treatment and welding method for high - speed wires in the present invention, the multi - group high - speed wire welding PCB diagram.

[0043] In the figure: 1. Limit block, 2. High - speed wire A, 3. High - speed wire B, 4. Welding end, 5. PCB, 6. Conductor core wire, 7. High - speed wire C. Specific embodiments

[0044] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present invention.

[0045] As Figures 1 - 19 shown.

[0046] A pre - treatment and welding method for high - speed wires includes the following steps:

[0047] (1) As Figure 1As shown, prepare at least one high-speed line A2 and at least one high-speed line B3 of the molding limiting block 1. The limiting block 1 can limit the high-speed lines, prevent them from falling off and shifting, and achieve precise positioning.

[0048] (2) As Figure 2 shown, install the high-speed line A2 and the high-speed line B3 on a fixture or jig. Set the positioning where the limiting block 1 needs to be placed on the fixture or jig. Through the one-word arrangement of the limiting block 1, quickly position the high-speed lines on the fixture or jig, complete the processing of multiple high-speed lines at one time, save the manual adjustment of the positions of the high-speed lines, reduce the construction difficulty, and improve the automation mode.

[0049] (3) Perform laser ablation to strip the shielding layer. The laser ablation technology processes the wire through a high-intensity laser beam, which can achieve very precise wire stripping operations, complete stripping, ensure the cleanliness of the stripped surface, and avoid the connection of the shielding layer with irregular notch residues to the welding end 4. Commonly used shielding layer materials are aluminum, copper, and silver. The above three materials can all be used as conductors. During the welding process, the connection of the shielding layer to the welding end 4 will cause a short circuit in the conductive wire, resulting in equipment damage and the risk of electric shock.

[0050] (4) Then perform laser ablation to strip the insulating layer. The laser can select an appropriate output power for processing according to the different characteristics of different layer materials to achieve the best ablation effect without damaging the next layer of material, thereby reducing the overall material loss.

[0051] (5) After the laser ablation, the bare conductor core wire 6 is exposed. The surface of the conductor core wire 6 after laser ablation of the insulating layer is smooth and without damage, maintaining the original set maximum power conductivity of the conductor core wire.

[0052] (6) As Figure 3 shown, cut a part of the exposed conductor core wire 6 to reserve the welding end 4. Take the limiting block 1 as the positioning reference point, reserve the length of the high-speed line, and cut off the redundant part of the conductor core wire 6 after stripping as the welding end 4, so that there is a preset length distance from the limiting block 1 to the welding end 4, which is conducive to the smooth positioning and welding of the welding end 4 and the PCB5.

[0053] (7) As Figure 4 、 Figure 5 shown, move the welding end 4 of the exposed conductor core wire 6 of the high-speed line A2 to a place on the PCB5 and weld it there. Through the welding of the welding end 4 of the exposed conductor core wire 6 of the high-speed line A2 and the PCB5, position the limiting block 1 of the molding on the high-speed line A2, and at the same time, it can be used as the positioning point for the limiting block 1 of another high-speed line.

[0054] (8) Move the limit block 1 of the high-speed line B3 to be adjacent to the limit block 1 of the high-speed line A2. At the same time, the welding end 4 of the exposed conductor core wire 6 of the high-speed line B3 reaches another location on the PCB 5 for welding. Utilize the limit block 1 on the molding of the high-speed line A2 to quickly position the limit block 1 of the high-speed line B3, enabling the welding end 4 of the high-speed line B2 to accurately reach another location on the PCB 5, and perform the welding of the welding end 4 of the high-speed line B3 to the PCB 5. According to design requirements, as Figure 6 shown, the limit block 1 of the high-speed line B3 can overlap above or below the limit block 1 of the high-speed line A2, as Figure 7 shown, or can be arranged side by side on the left or right of the limit block 1 of the high-speed line A2, as Figure 8 shown, or can be arranged in front of or behind the limit block 1 of the high-speed line A2.

[0055] Furthermore, as Figure 6 shown, the high-speed line A2 and the high-speed line B3 in step (1) have the same length, and the positions of the limit blocks 1 on the molding are the same. The limit blocks 1 on the molding of the high-speed line A2 and the high-speed line B3 overlap, and can be welded to adjacent points on the front and back sides of the PCB 5, as Figure 7 、 Figure 8 shown. The limit blocks 1 on the molding of the high-speed line A2 and the high-speed line B3 are arranged side by side or in parallel, and can be welded to the single side or different orientations on the front and back sides of the PCB 5.

[0056] Furthermore, as Figure 9 、 Figure 10 、 Figure 11 shown, the high-speed line A2 and the high-speed line B3 in step (1) have different lengths, and the positions of the limit blocks 1 on the molding are different. According to design requirements, the limit blocks 1 on the molding of the high-speed line A2 and the high-speed line B3 overlap, are arranged side by side, or are in parallel, and can be welded to the single side or different or the same orientations on the front and back sides of the PCB 5.

[0057] Furthermore, as Figure 12 shown, the number of high-speed lines A2 in step (1) and step (2) is two and they are molded together through their limit blocks 5, and the number of high-speed lines B3 is also two and they are molded together through their limit blocks 1. The limit blocks 1 limit the two high-speed lines simultaneously, which can maintain the stability of the two high-speed lines during the movement process, avoid the deviation or shaking caused by a single high-speed line, reduce the vibration and unstable factors of the high-speed lines during the movement of the equipment, and thus improve the stability and reliability of the overall equipment.

[0058] Furthermore, as Figure 13As shown, the number of high-speed lines A2 in the step (1) and the step (2) is two, and multiple groups of the high-speed lines A2 molded together by their limit blocks 1 are formed. The number of high-speed lines B3 is also two, and multiple groups of the high-speed lines B3 molded together by their limit blocks 1 are formed. Each high-speed line contains multiple core wires, and each core wire can independently form an electrical connection channel. According to the design requirements, the distances at which the two high-speed lines of the same limit block 1 need to be welded to the PCB5 are the same, and the lengths of the two high-speed lines can be set to be equal. For example, Figure 14 As shown, the distances at which the two high-speed lines of the same limit block 1 need to be welded to the PCB5 are different, and the lengths of the two high-speed lines can be set to be unequal; for example, Figure 15 As shown, multiple groups of the high-speed lines A2 and multiple groups of the high-speed lines B3 are arranged in rows on the fixture or jig. Positions for placing the limit blocks 1 are set on the fixture or jig. The high-speed lines can be quickly positioned on the fixture or jig through the limit blocks 1, saving the manual adjustment of the positions of the high-speed lines, forming an assembly line production, and improving the automation mode.

[0059] Further, after the laser processing in the step (5) and the step (6), the number of exposed conductor core wires 6 of a single high-speed line A2 or high-speed line B3 is between 1 pin and 12 pins. According to the design requirements, the distances at which the conductor core wires 6 of the same high-speed line need to be welded to the PCB5 are the same, and the lengths of the conductor core wires 6 can be set to be equal. If the distances at which the conductor core wires 6 of the same high-speed line need to be welded to the PCB5 are different, the lengths of the conductor core wires 6 can be set to be unequal. A single high-speed line contains multiple conductor core wires 6, which has higher stability when the high-speed line is pulled by a certain external force. The conductor core wires 6 can be classified according to color markings, improving the convenience of construction, having strong conduction ability, high reliability, good safety, being easy to use, having diverse structures, low maintenance costs, and strong anti-interference ability.

[0060] Further, for example, Figure 16 、 Figure 17 As shown, after the laser processing in the step (5) and the step (6), the number of exposed conductor core wires 6 of a single high-speed line A2 or high-speed line B3 is 2 pins or 4 pins. The high-speed line contains 2 or 4 core wires, and the cross-section of the high-speed line is in the shape of a water droplet. After shaping, the exposed part of the conductor core wire 6 is cut to leave a welding end 4. According to the distribution of the welding points set on the PCB5, the conductor core wires 6 are correspondingly shaped and arranged into the shape of the distribution orientation of the welding points set on the PCB5, leaving the welding ends 4 of the conductor core wires 6. Then, the redundant parts of the exposed conductor core wires 6 are cut. When welding the high-speed line to the PCB5, the welding end 4 can be quickly positioned and welded to the PCB5 through the limit block 1, reducing the manual positioning difficulty, reducing the labor cost, improving the production efficiency, improving the automation mode, and significantly improving the qualified rate of welding.

[0061] Further, for example,Figure 18 , Figure 19 As shown, in step (1), it may further include at least one high-speed line C7 of the molding limit block 1. The limit block 1 of the high-speed line C7 or more groups of high-speed line moldings can overlap, be arranged side by side, or be juxtaposed next to the limit block 1 of another high-speed line for positioning and welding with the PCB5. One or more high-speed lines are molded on the same limit block 1. Each segment of the high-speed line can be a single conductor core wire 6 or multiple conductor core wires 6. According to design requirements, the high-speed lines can be set to equal lengths, the conductor core wires 6 can be of equal lengths, or the high-speed lines can be of unequal lengths, and the conductor core wires 6 can be of unequal lengths. At the same time, they are welded to the welding points on different orientations of one side of the PCB5 or the welding points on both the front and back sides. The more wires are welded to the PCB5, the more difficult the construction is. By classifying or hierarchically molding the limit block 1 on the high-speed lines, it is possible to better organize the correct positions where each high-speed line needs to be welded to the PCB5, avoiding incorrect welding of the high-speed lines that may cause the equipment to malfunction or be damaged.

[0062] Finally, it should be noted that the above are only the preferred embodiments of the present invention and are not used to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions recorded in the foregoing embodiments or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A high-speed wire welding pretreatment and welding method, comprising the following steps: (1) preparing at least one high-speed line A and at least one high-speed line B of a molding finite block; (2) Installing the high-speed line A and the high-speed line B on a fixture or jig; (3) performing laser stripping of the shielding layer; (4) laser stripping of the insulating layer; (5) The conductor core is exposed after laser processing; (6) Cut the exposed conductor core wire to reserve the welding end; (7) moving the exposed conductor core wire welding end of the high-speed line A to a location on the PCB and welding it there; (8) The stop block of the high-speed line B is moved to be adjacent to the stop block of the high-speed line A, and at the same time, the exposed conductor core wire welding end of the high-speed line B reaches another place on the PCB and is welded there.

2. A high-speed wire welding pretreatment and welding method according to claim 1, characterized in that: The high-speed line A and the high-speed line B in the step (1) have the same length and the same molding limit blocks.

3. A high-speed wire welding pretreatment and welding method according to claim 1, characterized in that: The high-speed line A and the high-speed line B in the step (1) are of different lengths, and the positions of the molding limit blocks are different.

4. A high-speed wire welding pretreatment and welding method according to claim 1, characterized in that: In the step (1) and the step (2), there are two high-speed lines A, which are molded together by their limit blocks, and there are two high-speed lines B, which are molded together by their limit blocks.

5. A high-speed wire welding pretreatment and welding method according to claim 4, characterized in that: In the step (1) and the step (2), the number of high-speed lines A is two and the high-speed lines A are molded together by their limit blocks to form a plurality of groups, and the number of high-speed lines B is also two and the high-speed lines B are molded together by their limit blocks to form a plurality of groups; the plurality of groups of high-speed lines A and the plurality of groups of high-speed lines B are installed in a row on the fixture or jig.

6. A high-speed wire welding pretreatment and welding method according to claim 1, characterized in that: After the laser irradiation in step (5) and step (6), the number of exposed conductor core wires of a single high-speed line A or high-speed line B is between 1 pin and 12 pins.

7. A high-speed wire welding pretreatment and welding method according to claim 6, characterized in that: After the laser irradiation in step (5) and step (6), the number of exposed conductor core wires of a single high-speed line A or high-speed line B is 2 pins or 4 pins, and the exposed conductor core wire parts are cut off after shaping to reserve welding ends.

8. A high-speed wire welding pretreatment and welding method according to claim 1, characterized in that: The step (1) may further include at least one high-speed line C of a molding limit block.

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