Multi-degree-of-freedom adjustable core wire welding positioning device and using method
By designing a multi-degree-of-freedom adjustable core wire welding positioning device, precise positioning of circuit boards and electrical connectors is achieved, solving the problem of poor adaptability of traditional customized devices, improving welding accuracy and adaptability, and making it suitable for the production of small batches of multi-variety products.
Patent Information
- Application Number
- CN202511482980.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-10-16
- Publication Date
- 2026-02-10
AI Technical Summary
Existing core wire welding positioning devices have poor adaptability and are difficult to meet the needs of small-batch, multi-variety products. Furthermore, traditional customized products are prone to failure during version iterations, resulting in large welding errors. During the welding process, the core wire is easily pulled or squeezed.
Design a multi-degree-of-freedom adjustable core wire welding positioning device, including a bracket assembly, a retainer limiting guide rail, a connecting structure, and a clamping plate assembly. By adjusting the position and angle of the clamping plate, precise positioning of the circuit board and electrical connector can be achieved, reducing welding errors.
It improves the accuracy and adaptability of core wire welding, avoids pulling or squeezing of the core wire during welding, and is suitable for core wire welding of different models of products in mass production, thus improving the efficiency of equipment changeover and coordination capabilities.
Smart Images
Figure CN121491638A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of welding technology, and specifically to a multi-degree-of-freedom adjustable core wire welding positioning device and positioning method. Background Technology
[0002] In electronic assembly, electrical connectors are often assembled with printed circuit boards (PCBs) using a wire-spinning method, and the connector body is fixed to structural components in a vertical or parallel reverse manner. Therefore, part of the wire harness, which provides electrical interconnection, is mounted on the PCB, while the other part is suspended in the gap between the PCB and the structural components in different ways. The length of the wire harness varies depending on the routing. Currently, operators solder by measuring and tracing the wiring path on the PCB and structural components simultaneously, often resulting in slightly longer or shorter wires. During component assembly, inserting slightly longer wires into the housing or pulling slightly shorter wires makes assembly difficult, and the solder joints on the wires on the PCB and the solder cups of the connectors are subjected to additional mechanical stress or the wires are squeezed. The following are some of the reasons for the difference in core wire soldering length: 1) The operator is soldering from a top-down angle. Different operators have different top-down angles, which will lead to visual deviation; 2) The heavy electrical connector is prone to bending of the connector tail wire harness, which will generate tensile stress on the solder joint after soldering; 3) The relative position of the circuit board and electrical connector is not fixed during the soldering process and depends entirely on the operator's experience.
[0003] The core wire welding positioning device is mainly used for positioning core wire bundles. Its function is to fix the circuit board and electrical connector to be welded through mechanical mechanism, and to perform highly repeatable, fast and accurate positioning of the solder pads and solder cups. It can effectively reserve wiring allowance and avoid welding failure caused by differences in core wire welding.
[0004] Currently, traditional wire bonding positioning devices are customized products with poor compatibility across multiple models, resulting in low changeover efficiency and weak coordination capabilities for products with small batches and diverse varieties. Furthermore, version iterations of newly developed products, such as adjustments to assembly hole positions and pad locations, may cause traditional customized wire bonding positioning devices to malfunction. Therefore, the design of wire bonding positioning devices needs to evolve towards multi-degree-of-freedom adjustability to reduce wire bonding errors while improving the compatibility of the positioning device. Summary of the Invention
[0005] To solve the problem of core wire soldering and positioning between circuit boards and electrical connectors, this invention provides a multi-degree-of-freedom adjustable core wire soldering and positioning device and its usage method to solve the existing problems.
[0006] The first aspect of the present invention provides a multi-degree-of-freedom adjustable core wire welding positioning device, which adopts the following technical solution, including: The bracket assembly has two parallel connecting plate limiting guide rails horizontally arranged on it. A long axis guide rail limiting guide rail is horizontally arranged on one side near the end of the connecting plate limiting guide rail. The long axis guide rail limiting guide rail is perpendicular to the connecting plate limiting guide rail. The long axis guide rail limiting guide rail is slidably arranged on the bracket assembly in the vertical direction, and a fixing structure is provided on the long axis guide rail limiting guide rail to limit the position of the long axis guide rail limiting guide rail on the bracket assembly. The retainer limiting guide rail is used to install electrical connectors. It is axially slidably mounted on the long axis guide rail limiting guide rail, and the long axis guide rail limiting guide rail is provided with a limiting structure to restrict the rotation of the retainer limiting guide rail. The connecting structure is slidably mounted on the connecting plate limiting guide rail along the length direction of the connecting plate limiting guide rail; The clamping plate assembly is slidably and rotatably disposed on the connecting structure, wherein a fixing part is provided at one end of the clamping plate assembly facing the area formed between the two connecting plate limiting guide rails; the connecting structure is used to fix the position of the clamping plate assembly in the length direction of the connecting plate limiting guide rail, the rotation angle of the clamping plate assembly relative to the connecting plate limiting guide rail, and the position of the fixing part of the clamping plate assembly relative to the connecting plate limiting guide rail.
[0007] A further technical solution of the present invention includes a connection structure comprising: The slider limiting guide rail is slidably set in the groove opened on the connecting plate limiting guide rail. Each connecting plate limiting guide rail has two sections of groove, and one slider limiting guide rail is set in each section of groove. The bolt assembly includes screws for connecting the slider limit guide rail and the clamping plate assembly, nuts for connecting with the screws to fix the position of the clamping plate assembly in the length direction of the connecting plate limit guide rail, the rotation angle of the clamping plate assembly relative to the connecting plate limit guide rail, and the position of the fixing part of the clamping plate assembly relative to the screws.
[0008] A further technical solution of the present invention includes a clamping plate assembly comprising: The clamping plate limiting guide rail is located above the slider limiting guide rail and has a long groove along its length. The end of the clamping plate limiting guide rail facing the area between the two connecting plate limiting guide rails is the fixed part. In this process, the screws of the bolt assembly pass through the long slots of the slider limiting guide rail and the clamping plate limiting guide rail in sequence, and then connect to the nut of the bolt assembly. Tightening the nut achieves the fixation of the position of the clamping plate limiting guide rail in the length direction of the connecting plate limiting guide rail, the rotation angle of the clamping plate limiting guide rail relative to the connecting plate limiting guide rail, and the position of the fixing part of the clamping plate limiting guide rail relative to the screw.
[0009] In a further technical solution of the present invention, the fixing part is a fixing support plate, and the fixing support plate and the clamping plate limiting guide rail are connected at their ends toward the area between the two connecting plate limiting guide rails to form a stepped surface of the supporting circuit board.
[0010] A further technical solution of the present invention includes a support component comprising: two first support block limiting guide rails and two second support block limiting guide rails, wherein one first support block limiting guide rail and one second support block limiting guide rail form a set of support parts; wherein, a connecting plate limiting guide rail connects the first support block limiting guide rail and the second support block limiting guide rail of each set of support parts, and vertical slots are provided on the two first support block limiting guide rails, the end of the long axis guide rail limiting guide rail passes through the vertical slot and is slidably connected with the vertical slot, and a fixing structure is provided at the end of the long axis guide rail limiting guide rail that passes through the vertical slot.
[0011] A further technical solution of the present invention includes a fixing nut, which is fixed to the end of the long axis guide rail limiting guide rail that passes through the vertical groove.
[0012] In a further technical solution of the present invention, the end of the connecting plate limiting guide rail is connected to the corresponding first support block limiting guide rail and second support block limiting guide rail through corner code piece limiting guide rail and screw.
[0013] A further technical solution of the present invention includes a limiting structure comprising: a limiting guide rail disposed on a long axis guide rail, the limiting guide rail being disposed axially along the long axis guide rail, wherein the fixing device limiting guide rail is slidably disposed on the limiting guide rail.
[0014] The first aspect of the present invention provides a multi-degree-of-freedom adjustable core wire welding positioning method, the method comprising positioning using the multi-degree-of-freedom adjustable core wire welding positioning device provided in the first aspect of the present invention, the positioning steps including: Adjust the position and angle of the clamping plate and the position of the fixing part on the clamping plate relative to the connecting structure according to the size of the circuit board to be soldered, and lock it. After inserting the electrical connector into the retainer, lock it in place; The assembly space is simulated on the core wire welding positioning device. The positions of the four clamping plates in the length direction of the connecting plate are adjusted as a whole. The horizontal position of the fixer on the long axis guide rail and the height position on the support component are adjusted and locked so that the adjusted circuit board and electrical connector meet the assembly relationship; that is, the positioning of the circuit board and electrical connector during core wire welding is completed.
[0015] The beneficial effects of this invention are: This invention proposes a multi-degree-of-freedom adjustable core wire welding positioning device. By adjusting the position of the components of the core wire welding positioning device, it can be adapted to the assembly of circuit boards of different shapes and sizes, as well as the installation of electrical connectors, and perform core wire welding. By adjusting the device in conjunction with the product assembly space, it allows for the repeatable installation of circuit boards and electrical connectors, and the batch welding of core wires onto circuit boards and electrical connectors. Specifically, this invention provides rapid and precise positioning of circuit board pads and connector solder cups, reducing core wire welding errors and avoiding pulling on the welding wire bundle during welding. This achieves the welding effect of no additional mechanical stress on the solder joints and no compression of the core wires after assembly. The welding method based on this positioning device is suitable for core wire welding of different models of products in mass production. The device has high changeover efficiency and strong collaborative capabilities, resulting in high adaptability and accuracy of the welding method. Attached Figure Description
[0016] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0017] Figure 1 This is a schematic diagram of the overall structure of a multi-degree-of-freedom adjustable core wire welding positioning device according to the present invention.
[0018] Figure 2 This is a schematic diagram showing the state of the core wire welding positioning device of the present invention after adjusting the position of the clamping plate.
[0019] Figure 3 This is a schematic diagram of the fixture in the core wire welding positioning device of the present invention.
[0020] Figure 4 This is a schematic diagram of the long axis slide rail in the core wire welding positioning device of the present invention.
[0021] Figure 5 This is a schematic diagram of the slider in the core wire welding positioning device of the present invention.
[0022] Figure 6 This is an assembly diagram of a 210mm long and 270mm wide circuit board after being installed into a core wire welding and positioning device, according to an embodiment of the present invention.
[0023] In the diagram: 1-1, First support block; 1-2, Long axis guide rail; 1-3, Fixer; 1-4, Second support block; 1-5, Connecting plate; 1-6, Slider; 1-7, Clamping plate; 1-8, Angle code piece; 2-1, Limiting guide rail; 2-2, Vertical groove; 2-3, Sliding groove; 2-4, Long strip groove. Detailed Implementation
[0024] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.
[0025] An embodiment of the multi-degree-of-freedom adjustable core wire welding positioning device and its usage method of the present invention is as follows: Figure 1 and Figure 2 As shown, it includes: a bracket assembly, a fixator 1-3, a connecting structure, and a clamping plate assembly; two parallel connecting plates 1-5 are horizontally arranged on the bracket assembly, and a long axis guide rail 1-2 is horizontally arranged on one side near the end of the connecting plate 1-5. The long axis guide rail 1-2 is perpendicular to the connecting plate 1-5, and the long axis guide rail 1-2 is slidably arranged on the bracket assembly in the vertical direction. A fixing structure is provided on the long axis guide rail 1-2 to limit its position on the bracket assembly; as shown... Figure 1 and Figure 3 As shown, the retainer 1-3 is used to install the electrical connector. The retainer 1-3 is slidably mounted on the long axis guide rail 1-2 along the axial direction, and the long axis guide rail 1-2 is provided with a limiting structure to restrict the rotation of the retainer 1-3. The connecting structure is slidably mounted on the connecting plate 1-5 along the length direction of the connecting plate 1-5. The clamping plate assembly is slidably and rotatably mounted on the connecting structure. The clamping plate assembly has a fixing part at one end facing the area formed between the two connecting plates 1-5. The connecting structure is used to fix the position of the clamping plate assembly in the length direction of the connecting plate 1-5, the rotation angle of the clamping plate assembly relative to the connecting plate 1-5, and the position of the fixing part of the clamping plate assembly relative to the connecting plate 1-5.
[0026] For example, in one specific embodiment, the connection structure includes: sliders 1-6 and bolt assemblies, wherein sliders 1-6 are slidably disposed within grooves 2-3 formed on the connecting plate 1-5, wherein, as Figure 2 As shown, each connecting plate 1-5 has a two-section slide groove, with a limiting end between the two slide groove sections 2-3. A slider 1-6 is installed within each slide groove section 2-3; as shown... Figure 4 As shown, the slider 1-6 has holes for through screws. The screws of the bolt assembly are used to connect the slider 1-6 and the clamping plate assembly. The nuts of the bolt assembly are used to connect with the screws to fix the position of the clamping plate assembly in the length direction of the connecting plate 1-5. The rotation angle of the clamping plate assembly relative to the connecting plate 1-5 and the position of the fixing part of the clamping plate assembly relative to the screws are also shown.
[0027] For example, in one specific embodiment, the clamping plate assembly includes: four clamping plate members 1-7, which are disposed above the slider 1-6. Elongated slots 2-4 are formed along the length of the clamping plate members 1-7, and the ends of the clamping plate members 1-7 facing the area between the two connecting plates 1-5 are fixed portions. The screws of the bolt assembly pass sequentially through the slider 1-6 and the elongated slots 2-4 of the clamping plate members 1-7 before connecting to the nuts of the bolt assembly. Tightening the nuts achieves the adjustment of the position of the clamping plate members 1-7 along the length of the connecting plates 1-5, the rotation angle of the clamping plate members 1-7 relative to the connecting plates 1-5, and the position of the fixed portions on the clamping plate members 1-7 relative to the screws. To fix the position, loosen the nut, and you can manually adjust the clamping plate 1-7 so that the long groove 2-4 of the clamping plate 1-7 rotates around the screw to adjust the rotation angle of the clamping plate assembly relative to the connecting plate 1-5. Manually push the clamping plate 1-7, and under the guidance of the long groove 2-4 and the limit of the screw, the clamping plate 1-7 moves to adjust the position of the fixed part of the clamping plate assembly relative to the screw. By moving the slider 1-6, the clamping plate 1-7 connected to the slider 1-6 by the screw moves under the guide structure formed by the slider 1-6 and the groove 2-3, thereby adjusting the position of the clamping plate 1-7 in the length direction of the connecting plate 1-5.
[0028] For example, such as Figure 2 As shown, in one specific embodiment, the fixing part on the clamping plate 1-7 is a fixing support plate, and the fixing support plate and the end of the clamping plate 1-7 facing the area between the two connecting plates 1-5 are connected to form a stepped surface of the supporting circuit board.
[0029] For example, such as Figure 1 and Figure 2 As shown, in one specific embodiment, the support assembly includes two first support blocks 1-1 and two second support blocks 1-4, forming a set of support parts. A connecting plate 1-5 connects the first support blocks 1-1 and the second support blocks 1-4 in each set of support parts. Vertical slots 2-2 are provided on the two first support blocks 1-1. The end of the long axis guide rail 1-2 passes through the vertical slot 2-2 and is slidably connected to it. A fixing structure is provided at the end of the long axis guide rail 1-2 extending out of the vertical slot 2-2. In this embodiment, the fixing structure includes a fixing nut, which is fixed to the end of the long axis guide rail 1-2 extending out of the vertical slot 2-2.
[0030] In this embodiment, the end of the connecting plate 1-5 is connected to the corresponding first support block 1-1 and second support block 1-4 via corner bracket 1-8 and screws.
[0031] For example, in one specific embodiment, such as Figure 2 and Figure 4As shown, the limiting structure includes: a limiting guide rail 2-1 disposed on the long axis guide rail 1-2, the limiting guide rail 2-1 being arranged axially along the long axis guide rail 1-2, wherein the fixing device 1-3 is slidably disposed on the limiting guide rail 2-1, that is, in this embodiment, the cross-sections of the long axis guide rail 1-2 and the limiting guide rail 2-1 are trapezoidal surfaces, as shown. Figure 3 As shown, the fixture 1-3 is provided with a groove that matches the cross-section formed by the long axis guide rail 1-2 and the limiting guide rail 2-1.
[0032] An embodiment of a multi-degree-of-freedom adjustable core wire soldering positioning method is provided. This embodiment is for core wire soldering between a circuit board with a length of 210mm and a width of 270mm and a 21-pin electrical connector with a length of 40mm and a width of 10mm. Specifically, this embodiment utilizes the multi-degree-of-freedom adjustable core wire soldering positioning device of the present invention for positioning. Figure 1 and Figure 2 As shown, in this embodiment, the length direction of the connecting plate is taken as the X-axis direction, the direction perpendicular to the connecting plate in the same horizontal plane is taken as the Y-axis direction, and the direction perpendicular to the connecting plate in the vertical direction is taken as the Z-axis direction. The positioning steps include: Step 1: Adjust the position and angle of the clamping plate and the position of the fixing part on the clamping plate relative to the connecting structure according to the size of the circuit board to be soldered, and lock it. For example, in this embodiment, the steps of adjusting and locking the position and angle of the clamping plate and the position of the fixing part on the clamping plate relative to the connecting structure are as follows: Loosen the nut, and the clamping plate 1-7 can be manually pushed to rotate around the screw (rotate around the Z-axis direction), that is, rotate around the screw with the cooperation of the long slot of the clamping plate 1-7 and the screw, so as to adjust the rotation angle of the clamping plate assembly relative to the connecting plate 1-5; manually push the clamping plate 1-7 so that the clamping plate 1-7 moves under the guiding and limiting action of the long slot and the screw, so as to adjust the position of the fixing part of the clamping plate 1-7 relative to the screw. In this section, by moving slider 1-6, the clamping plate 1-7 connected to slider 1-6 by screws moves under the guide structure formed by slider 1-6 and the slide groove (moving in the X-axis direction), thereby realizing the position adjustment of clamping plate 1-7 in the length direction of connecting plate 1-5. During the adjustment process, it is necessary to ensure that the fixing parts of all four clamping plates 1-7 can be supported on the circuit board. After the adjustment is completed, the position of clamping plate 1-7 in the length direction of connecting plate 1-5, the rotation angle of clamping plate 1-7 relative to connecting plate 1-5, and the position of the fixing part on clamping plate 1-7 relative to the screw are fixed by tightening the nut.
[0033] Step 2: Insert the electrical connector into retainer 1-3 and lock it in place; Specifically, in this embodiment, after the electrical connector is installed into the retainer 1-3, it is locked with an M5 screw to stably fix the electrical connector on the device.
[0034] Step 3: Simulate the assembly space on the core wire welding positioning device, adjust the position of the four clamping plates in the length direction of the connecting plate, adjust the horizontal position of the fixing device on the long axis guide rail and the height position on the support component and lock it, so that the adjusted circuit board and electrical connector meet the assembly relationship. Specifically, in this embodiment, considering the subsequent assembly relationship between the circuit board and the electrical connector, the assembly space is simulated on the core wire welding positioning device of this embodiment. The clamping plate assembly is translated as a whole along the X-axis direction, the translation of the retainer on the long axis guide rail is adjusted (the retainer is translated along the Y-axis direction), and the position of the long axis guide rail in the vertical direction (Z-axis direction) is adjusted by loosening the fixing screws at the end of the long axis guide rail. After the adjustment is completed, the fixing nut is tightened to lock the long axis guide rail, thus realizing the position adjustment and locking of the electrical connector, so that the adjusted circuit board and electrical connector meet the assembly relationship.
[0035] It should be noted that during mass production, the positioning only needs to be performed once according to the steps of the multi-degree-of-freedom adjustable core wire welding positioning method of this embodiment. Subsequent production in the same batch can directly install the circuit board and electrical connector. The core wire welding positioning device can repeatedly and accurately position the circuit board pads and electrical connector solder cups, control the core wire welding length, avoid the electrical connector's own weight pulling the welding wire bundle during the welding process, ensure that the welded product meets the dimensional requirements after assembly, and avoid the solder joints bearing additional mechanical stress or the core wire being squeezed.
[0036] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.
Claims
1. A multi-degree-of-freedom adjustable core wire welding positioning device, characterized in that, include: The bracket assembly has two parallel connecting plate limiting guide rails horizontally arranged on it. A long axis guide rail limiting guide rail is horizontally arranged on one side near the end of the connecting plate limiting guide rail. The long axis guide rail limiting guide rail is perpendicular to the connecting plate limiting guide rail. The long axis guide rail limiting guide rail is slidably arranged on the bracket assembly in the vertical direction, and a fixing structure is provided on the long axis guide rail limiting guide rail to limit the position of the long axis guide rail limiting guide rail on the bracket assembly. The retainer limiting guide rail is used to install electrical connectors. It is axially slidably mounted on the long axis guide rail limiting guide rail, and the long axis guide rail limiting guide rail is provided with a limiting structure to restrict the rotation of the retainer limiting guide rail. The connecting structure is slidably mounted on the connecting plate limiting guide rail along the length direction of the connecting plate limiting guide rail; The clamping plate assembly is slidably and rotatably disposed on the connecting structure, wherein a fixing part is provided at one end of the clamping plate assembly facing the area formed between the two connecting plate limiting guide rails; the connecting structure is used to fix the position of the clamping plate assembly in the length direction of the connecting plate limiting guide rail, the rotation angle of the clamping plate assembly relative to the connecting plate limiting guide rail, and the position of the fixing part of the clamping plate assembly relative to the connecting plate limiting guide rail.
2. The multi-degree-of-freedom adjustable core wire welding positioning device according to claim 1, characterized in that, The connection structure includes: The slider limiting guide rail is slidably set in the groove opened on the connecting plate limiting guide rail. Each connecting plate limiting guide rail has two sections of groove, and one slider limiting guide rail is set in each section of groove. The bolt assembly includes screws for connecting the slider limit guide rail and the clamping plate assembly, nuts for connecting with the screws to fix the position of the clamping plate assembly in the length direction of the connecting plate limit guide rail, the rotation angle of the clamping plate assembly relative to the connecting plate limit guide rail, and the position of the fixing part of the clamping plate assembly relative to the screws.
3. The multi-degree-of-freedom adjustable core wire welding positioning device according to claim 2, characterized in that, The clamp assembly includes: The clamping plate limiting guide rail is located above the slider limiting guide rail and has a long groove along its length. The end of the clamping plate limiting guide rail facing the area between the two connecting plate limiting guide rails is the fixed part. In this process, the screws of the bolt assembly pass through the long slots of the slider limiting guide rail and the clamping plate limiting guide rail in sequence, and then connect to the nut of the bolt assembly. Tightening the nut achieves the fixation of the position of the clamping plate limiting guide rail in the length direction of the connecting plate limiting guide rail, the rotation angle of the clamping plate limiting guide rail relative to the connecting plate limiting guide rail, and the position of the fixing part of the clamping plate limiting guide rail relative to the screw.
4. The multi-degree-of-freedom adjustable core wire welding positioning device according to claim 3, characterized in that, The fixing part is a fixed support plate. The fixed support plate and the clamping plate limit guide rail are connected at the ends in the area between the two connecting plate limit guide rails to form the stepped surface of the support circuit board.
5. The multi-degree-of-freedom adjustable core wire welding positioning device according to claim 1, characterized in that, The support assembly includes two first support block limiting guide rails and two second support block limiting guide rails, with one first support block limiting guide rail and one second support block limiting guide rail forming a set of support parts; wherein, a connecting plate limiting guide rail connects the first support block limiting guide rail and the second support block limiting guide rail of each set of support parts, and vertical slots are provided on the two first support block limiting guide rails, the end of the long axis guide rail limiting guide rail passes through the vertical slot and is slidably connected with the vertical slot, and a fixing structure is provided at the end of the long axis guide rail limiting guide rail that passes through the vertical slot.
6. The multi-degree-of-freedom adjustable core wire welding positioning device according to claim 5, characterized in that, The fixing structure includes a fixing nut, which is fixed to the end of the long shaft guide rail limit guide rail that passes through the vertical groove.
7. The multi-degree-of-freedom adjustable core wire welding positioning device according to claim 5, characterized in that, The end of the connecting plate limiting guide rail is connected to the corresponding first support block limiting guide rail and second support block limiting guide rail via corner code plate limiting guide rail and screw.
8. The multi-degree-of-freedom adjustable core wire welding positioning device according to claim 1, characterized in that, The limiting structure includes: a limiting guide rail disposed on the long axis guide rail, the limiting guide rail being arranged axially along the long axis guide rail, wherein the fixing device limiting guide rail is slidably disposed on the limiting guide rail.
9. A multi-degree-of-freedom adjustable core wire welding positioning method, characterized in that, Positioning is performed using the multi-degree-of-freedom adjustable core wire welding positioning device according to any one of claims 1-8, the positioning steps including: Adjust the position and angle of the clamping plate and the position of the fixing part on the clamping plate relative to the connecting structure according to the size of the circuit board to be soldered, and lock it. After inserting the electrical connector into the retainer, lock it in place; The assembly space is simulated on the core wire welding positioning device. The positions of the four clamping plates in the length direction of the connecting plate are adjusted as a whole. The horizontal position of the fixer on the long axis guide rail and the height position on the support component are adjusted and locked so that the adjusted circuit board and electrical connector meet the assembly relationship; that is, the positioning of the circuit board and electrical connector during core wire welding is completed.