Shielding cover welding machine for high-speed cable electric connector

Abstract

The invention relates to the technical field of electric connector manufacturing, and particularly discloses a shielding case welding machine for a high-speed cable electric connector, which comprises a rack, a first feeding device, a second feeding device and a welding device, the first feeding device, the second feeding device and the welding device are arranged on the rack, the electric connector comprises a terminal and a shielding case, the first feeding device is used for feeding the terminal, and the second feeding device is used for feeding the shielding case. The second feeding device is used for feeding the shielding case; a carrying device and an assembling device are arranged on the rack, and the welding device is located above the assembling device and used for welding assembled terminals and shielding covers into electric connectors; the assembling device comprises a bearing platform used for bearing terminals, a welding mold arranged above the bearing platform in a lifting mode and a mold lifter driving the welding mold to ascend and descend, the welding mold is provided with a plurality of welding through holes for exposing the welding positions of the shielding cover, and the welding device welds a plurality of welding points on the shielding cover through the welding through holes.

Description

Technical Field

[0001] This invention relates to the field of electrical connector manufacturing technology, and in particular discloses a shielding cover welding machine for high-speed cable electrical connectors. Background Technology

[0002] Currently, the assembly and welding of shielding covers and terminals of high-speed cable connectors mostly rely on traditional semi-automated or manual operations. The core pain points are: traditional equipment lacks an integrated feeding, assembly, pressing and welding structure, the positioning accuracy of terminals and shielding covers is poor, displacement and misalignment are prone to occur during welding, and there is no dedicated pressing mold and precise solder joint exposure structure, making it impossible to accurately control the welding penetration depth, resulting in poor welding consistency, frequent cold solder joints and missing solder joints. At the same time, it is easy to have insufficient solder joint connection strength due to insufficient penetration depth, and damage to terminal gold pins due to excessive penetration depth, making it difficult to meet the high precision and high stability production requirements of high-speed connectors. Based on this, secondary pain points are as follows: terminal material conveying is prone to deviation, the correction and positioning mechanisms are rudimentary, workpiece clamping is unreliable, and deformation is easily caused, further affecting welding accuracy and penetration stability; traditional welding methods have large heat-affected zones and low efficiency, cannot adapt to rapid welding of multiple weld points, and are difficult to achieve precise control of penetration depth; at the same time, there is a lack of a full-process inspection mechanism, making it impossible to detect weld penetration depth and welding accuracy in real time, and defective products are difficult to remove in real time; the feeding and cutting of multi-piece shielding covers are mostly decentralized operations, which do not match the overall production line rhythm, resulting in low overall production efficiency and unstable yield, and cannot meet the needs of large-scale, high-quality mass production of high-speed cable connectors. Summary of the Invention

[0003] In order to overcome the shortcomings and deficiencies of the existing technology, the purpose of this invention is to provide a shielding cover welding machine for high-speed cable electrical connectors.

[0004] To achieve the above objectives, the present invention provides a shielding cover welding machine for high-speed cable electrical connectors, comprising a frame, a first feeding device, a second feeding device, and a welding device disposed on the frame. The electrical connector includes terminals and a shielding cover. The first feeding device is used to feed terminals, and the second feeding device is used to feed shielding covers. The frame is provided with a conveying device and an assembly device. The first feeding device is used to feed terminals onto the assembly device, and the conveying device is used to install the shielding cover onto the terminals located on the assembly device. The welding device is located above the assembly device and is used to weld the assembled terminals and shielding cover into an electrical connector. The assembly device includes a support platform for carrying terminals, a welding mold that is lifted and lowered above the support platform, and a mold lifter that drives the welding mold to lift and lower. The mold lifter drives the welding mold to press down against the shielding cover, cooperating with the support platform to hold the assembled terminals and shielding cover. The welding mold has several welding through holes that expose the welding positions of the shielding cover, and the welding device welds several welding points on the shielding cover through the welding through holes.

[0005] This solution achieves automated assembly and welding of shielding covers and terminals for high-speed cable connectors through an integrated feeding, handling, assembly, and welding structure, completely overcoming the drawbacks of traditional manual assembly and welding, such as low efficiency and poor consistency. The coordinated pressing design of the welding mold and the support platform precisely fixes the assembled terminals and shielding cover, preventing displacement deviations during welding. The inclusion of welding through-holes ensures precise exposure of the welding position, guaranteeing that the welding device can accurately target the welding points, effectively improving the welding quality and yield of the connectors, and meeting the needs of large-scale production of high-speed cable connectors.

[0006] Furthermore, the terminal includes multiple parallel gold needles, and the shielding cover has multiple welding parts and multiple shielding parts, each welding part and each shielding part being arranged parallel to the gold needles; the shielding part is connected between two adjacent welding parts, the welding part is used to weld onto the gold needles, there are two gold needles between two adjacent welding parts, and the shielding part is C-shaped and arranged above the two gold needles between two adjacent welding parts, cooperating with the two adjacent welding parts to form a shielding space; the welding mold has a mold component, welding through holes are provided on the mold component, a plurality of welding through holes are respectively arranged along the extension direction of the gold needles and perpendicular to the extension direction of the gold needles, the mold component is provided with crimping protrusions, the welding through holes are provided between two adjacent crimping protrusions along the extension direction of the gold needles, and a shielding groove for accommodating the shielding part is provided between two adjacent crimping protrusions perpendicular to the extension direction of the gold needles.

[0007] This solution refines the structure of the terminals and shielding cover, as well as the adaptation design of the welding mold. The shielding space formed by the C-shaped shielding part and the welding part can accurately wrap the gold pins, significantly improving the electromagnetic shielding performance of high-speed cable connectors and meeting the anti-interference requirements of high-speed transmission scenarios. The layout of the pressing protrusions and shielding grooves on the welding mold achieves precise positioning and stable holding of the shielding cover, preventing deformation or displacement during welding. The orderly arrangement of welding through holes corresponds precisely to the welding points, ensuring that the laser can efficiently and without deviation complete multi-point welding, further guaranteeing the product's structural stability and electrical performance consistency.

[0008] Furthermore, the support platform is provided with a central through hole, a lifting member and a lifting driver that are lifted and lowered within the central through hole, the terminal is located above the central through hole, and the terminal is provided with a support base composed of several connecting ribs, the support base being supported on the support platform; the lifting member has a lifting surface for abutting the terminal, and a number of lifting protrusions are provided on the lifting surface, the support base having a number of support grooves that cooperate with the number of lifting protrusions.

[0009] This solution adds a lifting component to the support platform. The lifting mechanism, controlled by a lifting driver, controls the raising and lowering of the lifting element. The precise fit between the lifting protrusion and the support groove achieves secondary positioning and stable support for the terminals. This design effectively counteracts the downward pressure generated during welding, preventing terminal deformation due to uneven stress, while ensuring the precise relative position of the terminals and the support platform. The central through-hole provides reasonable space for the movement of the lifting element, ensuring that the support of the support base and the contact of the lifting element do not interfere with each other. This optimizes the spatial layout of the assembly device and improves the positioning accuracy of the terminals before welding, laying the foundation for subsequent welding quality.

[0010] Furthermore, the welding device includes a laser emitter, a Z-axis lifting mechanism, and a two-dimensional galvanometer assembly; the Z-axis lifting mechanism is used to drive the laser emitter to lift and adjust focus, and the two-dimensional galvanometer assembly is used to deflect and scan the laser beam to each welding through hole of the welding mold within the scope of the laser emitter's lens barrel, so as to sequentially weld several welding points of the shield and the terminal.

[0011] This solution employs a laser welding design combined with a Z-axis lifting mechanism and a two-dimensional galvanometer assembly. The Z-axis lifting mechanism enables precise focusing of the laser emitter, adapting to the welding focal length requirements of different specifications of electrical connectors and improving the equipment's versatility. The two-dimensional galvanometer assembly can rapidly deflect and scan the laser beam, completing sequential welding of multiple points without moving the welding device or workpiece, significantly improving welding efficiency. Laser welding offers advantages such as a small heat-affected zone, high welding speed, and aesthetically pleasing and robust welds, effectively solving the problem of easily damaging terminal pins in traditional welding methods and ensuring the electrical connection reliability of the electrical connectors.

[0012] Furthermore, the assembly device has an assembly track mounted on a frame, and several terminals are connected as terminal strips via corresponding support bases; the first feeding device includes a reel, a drive motor, and a guide rail. The reel is used to carry the terminal strips, and the drive motor is connected to the reel to drive the reel to actively feed the material. The guide rail is located below the reel and is used to guide and transport the terminal strips onto the assembly track; the support base has side strips located on the outer periphery of the terminals, and two parallel grooves are arranged on both sides of the assembly track to accommodate the side strips. The terminals are suspended between the two grooves, and the support platform is used to receive the terminal strips transported on the assembly track.

[0013] This solution employs a terminal strip feeding and assembly track conveyor design. Active feeding is achieved via a reel and drive motor, coupled with precise guidance from the guide rail, ensuring smooth and continuous transport of the terminal strip to the assembly track. The cooperation between the grooved rails of the assembly track and the side strips of the supporting base enables directional transport of the terminal strip, while the suspended terminal design prevents wear on the gold pins during transport. This structure not only automates and ensures continuous terminal feeding, significantly improving feeding efficiency, but also effectively protects critical terminal components, reduces material loss, and adapts to the cycle time requirements of large-scale automated production lines.

[0014] Furthermore, the assembly track includes a fixed track mounted on the frame, a reciprocating moving track, and a track driver that drives the moving track toward and / or away from the fixed track. The fixed track is equipped with rollers and a limit lifter that drives the rollers to move up and down. The rollers are used to roll against the side strips of the terminal strip to correct and limit the deviation of the terminal strip. The moving track is equipped with a deviation correction component and a deviation correction drive that drives the deviation correction component to move up and down. The deviation correction component is used to insert between adjacent support bases. The track driver drives the moving track to move the deviation correction component against the support base and pushes the support base toward the fixed track, thereby correcting the deviation of the terminal strip.

[0015] This design employs a dual-track correction structure. Through the reciprocating motion of the moving track and the insertion and pushing of the correction component, combined with the rolling limit of the rollers on the fixed track, precise bidirectional correction of the terminal strip is achieved. The design of the correction component inserting between adjacent support substrates allows for precise force application to a single support substrate, preventing interference with other terminals during the correction process. The rolling contact method of the rollers ensures the reliability of the correction limit while reducing frictional damage to the side strips of the terminal strip. This structure effectively solves the problem of terminal strip misalignment during transport, ensuring accurate delivery of terminals to the welding station.

[0016] Furthermore, the side strip of the terminal strip is provided with positioning holes, and the bearing platform is provided with a linear rail for receiving the groove rail. Both the linear rail and the groove rail are provided with an exposure groove, which is used to expose the positioning holes on the side strip. The fixed rail and the welding mold are both provided with positioning components. The fixed rail is provided with a positioning driver to drive the positioning component to move up and down, so as to drive the positioning component to pass through the exposure groove and cooperate with the positioning hole to position the terminal strip. The positioning component on the welding mold is used to cooperate with the positioning hole, and under the drive of the mold lifter, it presses and fixes the electrical connector to be welded with the welding mold.

[0017] This solution achieves precise positioning of the terminal strip throughout the entire process, from conveying to welding, through a dual positioning structure. Positioning components on the fixed track provide initial positioning of the terminal strip during conveying, ensuring its smooth transport to the support platform. Positioning components on the welding mold provide secondary positioning before welding, synchronized with the mold's pressing action, completely fixing the relative positions of the terminals and the shielding cover. The precise fit between the positioning holes and the positioning components, combined with the avoidance design of the exposure groove, ensures reliable positioning without affecting strip conveying and mold pressing, fundamentally eliminating displacement deviations during welding and improving welding accuracy.

[0018] Furthermore, the assembly track is provided with a pressing component and a pressing driver that drives the pressing component to press down. The frame is provided with a liftable positioning base and a positioning lifter that drives the positioning base to rise and fall. The positioning base is provided with multiple positioning pins. Both the fixed track and the moving track are provided with clearance holes for exposing the lower part of the side strip. After the transport device places the shielding cover on the terminal, the positioning lifter drives the positioning pin on the positioning base to pass upward through the clearance hole and insert into the positioning hole of the side strip to position the bearing base. The pressing driver drives the pressing component to press the shielding cover downward onto the terminal and the bearing base, so that the shielding cover, the terminal and the bearing base are relatively fixed.

[0019] This design incorporates a co-fixing structure between the positioning base and the pressing component after the shielding cover is placed. Positioning pins are inserted from below into positioning holes, achieving precise positioning of the bottom of the supporting substrate. The pressing component then presses the shielding cover from above, creating a bi-directional fixation. This design ensures that the shielding cover, terminals, and supporting substrate are completely and relatively fixed before welding, preventing positional shifts caused by handling device errors or welding vibrations. The clearance holes provide adequate space for the movement of the positioning pins, ensuring that positioning and pressing actions do not interfere with each other, further improving assembly accuracy and guaranteeing the stability and consistency of subsequent welding.

[0020] Furthermore, the frame is equipped with a first camera detection component, a second camera detection component, a manual inspection station, and a receiving device. The first camera detection component is located between the first loading device and the assembly track. The second camera detection component is located between the support platform and the manual inspection station. The manual inspection station is located between the second camera detection component and the receiving device. The receiving device is used to receive electrical connectors that have been inspected by the second camera detection component and the manual inspection station.

[0021] This solution establishes a dual quality inspection system combining machine vision inspection and manual re-inspection. The first camera inspection component performs preliminary inspection of the appearance and position of the terminals after loading, promptly removing defective terminals to prevent impact on subsequent assembly. The second camera inspection component performs precise inspection of the welding quality of the electrical connectors after soldering, ensuring weld quality and proper shielding assembly. The manual inspection station performs a final re-inspection of products that have passed machine inspection, compensating for blind spots in machine vision inspection. This end-to-end inspection, combined with orderly material receiving, effectively ensures a high yield rate for outgoing products and reduces the risk of defective products entering the market.

[0022] Furthermore, the shielding cover includes multiple shielding sheets, and the frame is provided with multiple cutting tracks for conveying each shielding sheet. Each shielding sheet is connected by connecting ribs to form multiple shielding sheet strips. The second feeding device includes multiple feeding mechanisms for feeding each shielding sheet strip. Each cutting track is provided with a cutting mold and a cutting driver for driving the cutting mold to cut the corresponding shielding sheet strip into a single shielding sheet.

[0023] This solution addresses the multi-piece structure of shielding covers by designing an integrated structure for multi-channel synchronous feeding and cutting. Multiple feeding mechanisms can simultaneously transport shielding sheet strips of different specifications, adapting to the assembly requirements of multi-piece shielding covers. The cooperation between the cutting die and the cutting driver accurately cuts the shielding sheet strips into individual shielding sheets, ensuring the dimensional accuracy and edge flatness of the shielding sheets. The parallel design of multiple cutting tracks achieves synchronization and automation of shielding sheet feeding and cutting, significantly improving the feeding efficiency of the shielding cover and matching the automated assembly and welding cycle of terminals, further optimizing the overall production efficiency of the equipment.

[0024] The beneficial effects of this invention are as follows: This welding machine, through integrated feeding, handling, assembly, and welding devices, achieves automated assembly and welding of shielding covers and terminals for high-speed cable connectors. The overall structure is compact and production efficiency is high. The core assembly device uses a support platform and lifting welding mold to hold the workpiece, and precisely positions the weld points using welding through-holes. This allows for precise control of the welding penetration depth, ensuring uniform and consistent penetration that meets design standards. It avoids shallow penetration leading to incomplete welds and insufficient connection strength, while also preventing excessive penetration from damaging the terminal pins and affecting the electrical performance of the connector. Simultaneously, it ensures welding position accuracy, effectively controlling welding deviations within a preset range, significantly improving product consistency and welding quality, and substantially increasing the yield rate. The lifting positioning, conveyor belt, track correction, dual positioning, and pressing and fixing structures work in conjunction with the core device to achieve precise positioning, stable clamping, and reliable transport of the terminals and shielding covers, preventing welding deformation and displacement from the source, and further ensuring assembly accuracy and the stability of the welding penetration depth.

[0025] Laser welding, combined with a galvanometer and focusing mechanism, offers high welding speed and minimal heat-affected zone. It allows for precise control of weld penetration while protecting the electrical performance of the terminals. Furthermore, the precise scanning design of the 2D galvanometer assembly further enhances solder joint positioning accuracy, ensuring that the penetration and position of each solder joint meet technical requirements. Multi-station visual inspection combined with manual re-inspection forms a comprehensive quality control process, enabling real-time monitoring of solder joint penetration and welding accuracy, and timely rejection of defective products with insufficient penetration or misalignment. Multi-channel shielding sheet feeding and cutting adapts to the automated production of multi-piece shielding covers. The overall equipment is suitable for the large-scale, high-precision, and high-reliability mass production needs of high-speed connectors, balancing production efficiency with weld penetration and accuracy control, perfectly meeting the high-precision welding requirements of high-speed cable connectors. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the overall structure of a shielding cover welding machine for high-speed cable electrical connectors according to the present invention; Figure 2 This is a schematic diagram of the structure of the feeding device and the receiving device of the present invention. Figure 1 ; Figure 3 This is a schematic diagram of the structure of the feeding device and the receiving device of the present invention. Figure 2 ; Figure 4 This is a schematic diagram of the structure of the feeding device and the receiving device of the present invention. Figure 3 ; Figure 5 This is a schematic diagram of the welding mold and support platform of the present invention. Figure 1 ; Figure 6 This is a schematic diagram of the welding mold and electrical connector of the present invention. Figure 2 ; Figure 7 This is a schematic diagram of the welding mold and electrical connector of the present invention. Figure 3 ; Figure 8 This is a schematic diagram of the lifting component and electrical connector of the present invention; Figure 9 This is a schematic diagram of the mold component of the present invention; Figure 10 This is a schematic diagram of the structure of the roller component and the correction component of the present invention; Figure 11 This is a schematic diagram of the structure of the first feeding device of the present invention; Figure 12 This is a schematic diagram of the pressing component and positioning base of the present invention; Figure 13 This is a schematic diagram of the central through hole of the present invention; Figure 14This is a schematic diagram of the cutting mold, cutting track, and conveying device of the present invention.

[0027] The reference numerals in the attached drawings include: 1. Frame; 2. First feeding device; 3. Second feeding device; 4. Welding device; 5. Terminal; 6. Shielding cover; 7. Handling device; 8. Assembly device; 9. Bearing platform; 11. Welding mold; 12. Mold lifter; 13. Welding through hole; 14. Gold needle; 15. Welding part; 16. Shielding part; 17. Mold component; 18. Pressing protrusion; 19. Shielding groove; 21. Central through hole; 22. Lifting component; 23. Lifting driver; 24. Bearing base; 25. Lifting protrusion; 26. Laser emitter; 27. Z-axis lifting mechanism; 28. Two-dimensional galvanometer assembly; 29. ​​Assembly track; 31. Reel; 32. Drive 33. Motor; 34. Guide rail; 35. Side strip; 36. Grooved rail; 37. Fixed rail; 38. Moving rail; 39. Rail driver; 40. Roller component; 41. Limit lifter; 42. Correction component; 43. Correction drive component; 44. Positioning hole; 45. Linear rail; 47. Positioning component; 48. Positioning driver; 49. First camera detection assembly; 51. Second camera detection assembly; 52. Manual inspection station; 53. Material receiving device; 54. Cutting rail; 55. Feeding mechanism; 56. Cutting mold; 57. Cutting driver; 58. Pressing component; 59. Pressing driver; 61. Positioning base; 62. Positioning lifter; 63. Positioning pin. Detailed Implementation

[0028] To further illustrate the technical means and effects of the present invention in achieving its intended purpose, the following detailed description of the specific implementation methods, structures, features, and effects of the present invention, in conjunction with the accompanying drawings and preferred embodiments, is provided below.

[0029] Please see Figures 1 to 14As shown, a welding machine for a shielding cover 6 for a high-speed cable electrical connector according to the present invention includes a frame 1, a first feeding device 2, a second feeding device 3, and a welding device 4 disposed on the frame 1. The electrical connector includes a terminal 5 and a shielding cover 6. The first feeding device 2 is used to feed the terminal 5, and the second feeding device 3 is used to feed the shielding cover 6. The frame 1 is provided with a conveying device 7 and an assembly device 8. The first feeding device 2 is used to feed the terminal 5 onto the assembly device 8, the conveying device 7 is used to install the shielding cover 6 onto the terminal 5 located on the assembly device 8, and the welding device 4 is located on the assembly device 8. Above, the assembled terminals 5 and shielding cover 6 are welded into an electrical connector; the assembly device 8 includes a support platform 9 for supporting terminals 5, a welding mold 11 that is lifted and lowered above the support platform 9, and a mold lifter 12 that drives the welding mold 11 to rise and fall. The mold lifter 12 drives the welding mold 11 to press down against the shielding cover 6, and cooperates with the support platform 9 to hold the assembled terminals 5 and shielding cover 6. The welding mold 11 has several welding through holes 13 that expose the welding positions of the shielding cover 6. The welding device 4 welds several welding points on the shielding cover 6 through the welding through holes 13.

[0030] During operation, the first feeding device 2 stably transports the terminal 5 to the support platform 9 of the assembly device 8, the second feeding device 3 transports the shielding cover 6 to the picking position, and the handling device 7 precisely picks up the shielding cover 6 and assembles it onto the terminal 5, completing the pre-assembly process. Compared with the traditional manual feeding and assembly method, this structure can automate the entire process of feeding, handling, and assembly, significantly improving production efficiency and reducing human error. The mold lifter 12 can drive the welding mold 11 to move downward, so that the welding mold 11 cooperates with the support platform 9 to stably hold the terminal 5 and the shielding cover 6 between them, which can effectively prevent the workpiece from shifting, shaking, or warping during the welding process.

[0031] The welding mold 11 has multiple welding through holes 13 that can accurately expose the position to be welded on the shield 6. The welding device 4 can perform precise welding on the welding points through these through holes. Compared with the traditional welding method without positioning mold, it can significantly improve the consistency of the welding point position, reduce defects such as false welding, missing welding, and off-center welding, and ensure the stable and reliable welding quality of electrical connectors. It is more suitable for the mass automated production of high-speed cable electrical connectors.

[0032] Specifically, the terminal 5 includes multiple parallel gold needles 14, and the shielding cover 6 has multiple welding parts 15 and multiple shielding parts 16. Each welding part 15 and each shielding part 16 is arranged parallel to the gold needles 14. The shielding part 16 is connected between two adjacent welding parts 15. The welding parts 15 are used to weld onto the gold needles 14. There are two gold needles 14 between two adjacent welding parts 15. The shielding part 16 is C-shaped and arranged above the two gold needles 14 between two adjacent welding parts 15, cooperating with the two adjacent welding parts 15. A shielding space is formed; the welding mold 11 has a mold part 17, and welding through holes 13 are provided on the mold part 17. A plurality of welding through holes 13 are arranged along the extension direction of the gold needle 14 and perpendicular to the extension direction of the gold needle 14. The mold part 17 is provided with pressing protrusions 18. The welding through holes 13 are provided between two adjacent pressing protrusions 18 along the extension direction of the gold needle 14. A shielding groove 19 for accommodating the shielding part 16 is provided between two adjacent pressing protrusions 18 along the extension direction perpendicular to the extension direction of the gold needle 14.

[0033] The multiple gold pins 14 of terminal 5 are arranged in parallel. The two gold pins 14 between two adjacent solder parts 15 can form a differential transmission structure, which can meet the requirements of high-speed signal differential transmission. Compared with the traditional single-ended signal transmission method, it can significantly reduce signal crosstalk and transmission loss. The solder parts 15 and shielding parts 16 of the shielding cover 6 can extend along the direction of the gold pins 14 to match the layout of the differential gold pins 14. The shielding parts 16 are C-shaped and cover the two differential gold pins 14. The shielding space formed by the two side solder parts 15 can be a semi-open structure, covering only the upper half and part of the side of the gold pins 14. This can form electromagnetic shielding on the upper and side of the differential gold pins 14, suppressing external interference signals from affecting high-speed differential transmission. At the same time, it can simplify the structure while ensuring the shielding effect, making it easier to assemble and dissipate heat. Compared with the fully enclosed shielding structure, it can reduce the assembly difficulty and structural complexity.

[0034] The pressing protrusions 18 on the welding mold 11 can press against the welding part 15 of the shielding cover 6, so that the welding part 15 and the differential gold needle 14 fit tightly together, ensuring welding strength and conductivity stability; the shielding groove 19 can accommodate the C-shaped shielding part 16, preventing the shielding part 16 from being deformed under pressure during pressing. Multiple welding through holes 13 can correspond one-to-one with each welding point, so that the welding device 4 can perform welding precisely. Compared with the traditional mold without partition pressing, it can reduce the impact of welding heat diffusion on the gold needle 14, improve welding accuracy and product qualification rate.

[0035] Specifically, the support platform 9 is provided with a central through hole 21, a lifting member 22 that is lifted and lowered within the central through hole 21, and a lifting driver 23. The terminal 5 is located above the central through hole 21, and the terminal 5 is provided with a support base 24 composed of several connecting ribs. The support base 24 is supported on the support platform 9. The lifting member 22 has a lifting surface for abutting the terminal 5, and a number of lifting protrusions 25 are provided on the lifting surface. The support base 24 has a number of support grooves that cooperate with the number of lifting protrusions 25.

[0036] Terminal 5 is placed on the support platform 9 via the support base 24. The lifting driver 23 can drive the lifting member 22 to move upward along the central through hole 21, so that the lifting surface of the lifting member 22 is close to the terminal 5. The lifting protrusion 25 can be embedded in the support groove of the support base 24 to achieve precise positioning and support of the terminal 5 and the support base 24. Compared with the traditional method of relying solely on planar support, this structure can provide multi-point support and positioning for the terminal 5 from below, which can effectively counteract the pressure generated when the welding mold 11 presses down, avoid problems such as bending and deformation of the terminal 5 due to uneven force, and especially protect the structural integrity of the differential gold needle 14, preventing its deformation from affecting the differential signal transmission.

[0037] The central through hole 21 can provide a stable movement space for the lifting component 22, so that the lifting action is smooth and does not interfere with the bearing platform 9. The cooperation between the lifting protrusion 25 and the bearing groove can further improve the positioning accuracy of the terminal 5 before welding, and ensure that the relative position of the terminal 5 and the shielding cover 6 remains stable, thereby improving the consistency and reliability of the final welded product and adapting to the high precision requirements of high-speed differential transmission.

[0038] Specifically, the welding device 4 includes a laser emitter 26, a Z-axis lifting mechanism 27, and a two-dimensional galvanometer assembly 28; the Z-axis lifting mechanism 27 is used to drive the laser emitter 26 to lift and adjust focus, and the two-dimensional galvanometer assembly 28 is used to deflect and scan the laser beam to each welding through hole 13 of the welding mold 11 within the scope of the lens barrel of the laser emitter 26, so as to sequentially weld several welding points of the shielding cover 6 and the terminal 5.

[0039] During welding, the Z-axis lifting mechanism 27 can drive the laser emitter 26 to move up and down, achieving precise adjustment of the laser focus. This adapts to the welding needs of electrical connectors of different thicknesses and specifications, especially meeting the high-precision requirements of welding differential gold pins 14 and shielding covers 6. Compared to the traditional fixed-focus welding device 4, it has a wider range of applications and more flexible adjustment. The laser beam emitted by the laser emitter 26 can enter the two-dimensional galvanometer assembly 28. Under the drive of the control signal, the two-dimensional galvanometer assembly 28 can quickly change the emission angle of the laser beam, precisely deflecting and scanning the laser beam to the positions of each welding through hole 13 on the welding mold 11, sequentially completing the welding operation of multiple weld points.

[0040] Compared to traditional methods that require moving the workpiece or welding head, this structure can complete multi-point welding without moving the workpiece, resulting in faster welding speed and a smaller heat-affected zone. It can effectively avoid problems such as heat deformation of the differential gold pin 14 and damage to the insulation layer, prevent differential signal transmission from being affected, and significantly improve welding efficiency and electrical performance stability of the electrical connector.

[0041] Specifically, the assembly device 8 has an assembly track 29 mounted on the frame 1, and several terminals 5 are connected as terminal 5 strips via corresponding support bases 24; the first feeding device 2 includes a reel 31, a drive motor 32, and a guide rail 33. The reel 31 is used to carry the terminal 5 strips, and the drive motor 32 is connected to the reel 31 to drive the reel 31 to actively feed the material. The guide rail 33 is located below the reel 31 and is used to guide and transport the terminal 5 strips to the assembly track 29; the support base 24 has side strips 34 located on the outer periphery of the terminals 5, and two parallel grooves 35 are arranged on both sides of the assembly track 29 to accommodate the side strips 34. The terminals 5 are suspended between the two grooves 35, and the support platform 9 is used to receive the terminal 5 strips transported on the assembly track 29.

[0042] When the first feeding device 2 is working, the drive motor 32 can drive the reel 31 to rotate actively, realizing the continuous feeding of the terminal 5 material strip. Compared with the traditional passive feeding method, it can effectively avoid problems such as material strip jamming and pulling deformation, especially protecting the differential gold needles 14 on the terminal 5, preventing them from bending or being damaged due to pulling. The guide rail 33 can guide the terminal 5 material strip, allowing it to enter the assembly rail 29 smoothly, avoiding material strip deviation that could cause the differential gold needles 14 to misalign. The groove rails 35 on both sides of the assembly rail 29 can accommodate the side strips 34 of the supporting base 24, allowing the terminal 5 to be suspended in the air. Compared with the traditional method of the terminal 5 directly contacting the rail for conveying, it can effectively avoid scratches and damage caused by friction between the differential gold needles 14 and the rail, ensuring the conductivity and structural integrity of the gold needles 14.

[0043] The support platform 9 can accurately receive the terminal 5 material strip transported to the end of the assembly track 29, providing a stable workstation for subsequent lifting and positioning, shielding cover 6 assembly and welding operations, ensuring the accurate position of each terminal 5 (especially the differential gold pin 14), laying the foundation for subsequent welding quality, and adapting to the large-scale production needs of high-speed differential electrical connectors.

[0044] Specifically, the assembly track 29 includes a fixed track 36 mounted on the frame 1, a reciprocating moving track 37, and a track driver 38 that drives the moving track 37 to approach and / or move away from the fixed track 36. The fixed track 36 is provided with rollers 39 and a limit lifter 41 that drives the rollers 39 to rise and fall. The rollers 39 are used to roll against the side strips 34 of the terminal 5 strip to correct and limit the deviation of the terminal 5 strip. The moving track 37 is provided with a deviation correction component 42 and a deviation correction drive 43 that drives the deviation correction component 42 to rise and fall. The deviation correction component 42 is used to insert between adjacent support bases 24. The track driver 38 drives the moving track 37 to move the deviation correction component 42 against the support base 24 and pushes the support base 24 toward the fixed track 36 to achieve deviation correction of the terminal 5 strip.

[0045] When the terminal 5 strip is conveyed on the assembly track 29, the limit lifter 41 can drive the roller 39 to move downwards, so that the roller 39 rolls against the side strip 34 of the terminal 5 strip, initially limiting the strip. Compared with the traditional fixed limiting structure, the rolling contact can reduce frictional damage to the side strip 34 and avoid the strip conveying jam. When the strip deviates, the correction drive 43 can drive the correction component 42 to move upwards, so that it inserts between two adjacent support bases 24. The track driver 38 can drive the moving track 37 to move towards the fixed track 36, causing the correction component 42 to abut against the support base 24 and push it to reset, achieving precise correction.

[0046] Compared to traditional overall push-type correction, this structure can apply precise force to a single carrier substrate 24, avoiding the displacement of adjacent terminals 5 during correction. In particular, it ensures the precise relative position of the differential pins 14 on the terminals 5, preventing differential pair misalignment from affecting signal transmission. The entire correction process is automated, requiring no manual intervention, which improves correction efficiency and ensures correction accuracy. This ensures the stable delivery of the terminal 5 strip to the next station, meeting the high-precision production requirements of high-speed differential connectors.

[0047] Specifically, the side strip 34 of the terminal 5 strip is provided with a positioning hole 44, and the bearing platform 9 is provided with a linear rail 45 for receiving the groove rail 35. The linear rail 45 and the groove rail 35 are both provided with an exposure groove, which is used to expose the positioning hole 44 on the side strip 34. The fixed rail 36 and the welding mold 11 are both provided with positioning elements 47. The fixed rail 36 is provided with a positioning driver 48 to drive the positioning elements 47 to rise and fall, so as to drive the positioning elements 47 to pass through the exposure groove and cooperate with the positioning hole 44 to position the terminal 5 strip. The positioning elements 47 on the welding mold 11 are used to cooperate with the positioning hole 44, and under the drive of the mold lifter 12, they press and fix the electrical connector to be welded with the welding mold 11.

[0048] When the terminal 5 strip is conveyed to the designated position, the positioning driver 48 on the fixed track 36 can drive the positioning member 47 to move downward, pass through the exposed groove on the slot 35 and the linear track 45, and insert into the positioning hole 44 of the side strip 34 to achieve the initial positioning of the terminal 5 strip. Compared with the traditional conveying method without precise positioning, it can effectively prevent the strip from shifting before welding, and especially ensure the stability of the position of the differential gold needle 14.

[0049] After the pre-assembly of terminal 5 and shielding cover 6 is completed, when the mold lifter 12 drives the welding mold 11 to press down, the positioning component 47 on the welding mold 11 can be simultaneously inserted into the positioning hole 44, cooperating with the positioning component 47 on the fixed track 36 to achieve dual positioning of the terminal 5 strip. Compared with the traditional single positioning structure, dual positioning can further improve the positioning accuracy, prevent workpiece displacement during welding, avoid misalignment between differential gold needle 14 and shielding cover 6 during welding, and ensure welding quality and differential signal transmission performance. The exposed slot can accurately expose the positioning hole 44, ensuring smooth insertion of the positioning component 47 without interfering with the strip conveying and mold pressing action. The entire positioning process is automated, efficient and accurate, and adaptable to the high-precision welding requirements of high-speed differential electrical connectors.

[0050] Specifically, the assembly track 29 is provided with a pressing component 58 and a pressing driver 59 that drives the pressing component 58 to press down. The frame 1 is provided with a liftable positioning base 61 and a positioning lifter 62 that drives the positioning base 61 to rise and fall. The positioning base 61 is provided with multiple positioning pins 63. Both the fixed track 36 and the moving track 37 are provided with clearance holes for exposing the lower part of the side strip 34. After the transport device 7 places the shielding cover 6 on the terminal 5, the positioning lifter 62 drives the positioning pins 63 on the positioning base 61 to pass upward through the clearance holes and insert into the positioning holes 44 of the side strip 34 to position the bearing base 24. The pressing driver 59 drives the pressing component 58 to press the shielding cover 6 downward onto the terminal 5 and the bearing base 24, so that the shielding cover 6, the terminal 5 and the bearing base 24 are relatively fixed.

[0051] After the handling device 7 places the shielding cover 6 on the terminal 5, the positioning lifter 62 can drive the positioning base 61 to move upward, so that the positioning pin 63 passes through the clearance holes on the fixed track 36 and the moving track 37 and is inserted into the positioning hole 44 of the side strip 34, accurately positioning the bearing base 24 from below. Compared with the traditional method of positioning only from above, this can avoid deformation caused by pressure on the differential gold needle 14 during positioning. At the same time, the pressing driver 59 can drive the pressing part 58 to move downward, pressing the shielding cover 6 tightly onto the terminal 5 and the bearing base 24, fixing the three relatively and preventing relative displacement during welding.

[0052] Compared to traditional manual pressing methods, this structure provides uniform and stable pressing force, ensuring both the precise fit between the shielding cover 6 and the differential pin 14, and preventing damage to the pin 14 or shielding cover 6 due to excessive pressing force. It particularly ensures the fit between the C-shaped shielding part 16 and the differential pin 14, guaranteeing the shielding effect. The clearance holes provide movement space for the positioning pin 63, allowing the positioning and pressing actions to proceed independently. The entire fixing process is automated, precise, and efficient, providing a stable workpiece state for subsequent welding operations and ensuring welding quality and the differential transmission performance of the electrical connector.

[0053] Specifically, the frame 1 is provided with a first camera detection component 49, a second camera detection component 51, a manual inspection station 52, and a receiving device 53. The first camera detection component 49 is located between the first loading device 2 and the assembly track 29. The second camera detection component 51 is located between the support platform 9 and the manual inspection station 52. The manual inspection station 52 is located between the second camera detection component 51 and the receiving device 53. The receiving device 53 is used to receive the electrical connectors after they have been inspected by the second camera detection component 51 and the manual inspection station 52.

[0054] After the terminal 5 tape is fed into the machine, the first camera inspection component 49 can acquire and analyze images of the terminal 5 to detect defects such as missing parts, deformation, and bent gold pins 14 (especially differential gold pins 14). Compared with traditional manual inspection methods, this method is more efficient and accurate, and can promptly remove defective terminals 5 to prevent them from entering subsequent processes and causing waste. After welding is completed, the second camera inspection component 51 can inspect the welding quality of the electrical connector and the assembly accuracy of the shielding cover 6. It focuses on inspecting whether the welding between the differential gold pins 14 and the shielding cover 6 is firm, whether there are any incomplete or missing welds, and whether the shielding part 16 is properly fitted. Compared with traditional single manual inspection, this method can achieve comprehensive and rapid inspection of welding quality.

[0055] Products that pass machine inspection can be transported to manual inspection station 52, where staff can re-inspect blind spots of the machine inspection to further ensure product quality. Finally, qualified products are collected and received by receiving device 53, while unqualified products are sorted separately. The entire inspection process forms a dual control system of "machine initial inspection + manual re-inspection," which significantly improves the product yield rate compared to traditional methods with no inspection or single inspection, prevents defective products from entering the market, and especially ensures the signal transmission reliability of high-speed differential connectors.

[0056] Specifically, the shielding cover 6 includes multiple shielding sheets, and the frame 1 is provided with multiple cutting tracks 54 for conveying each shielding sheet. Each shielding sheet is connected by connecting ribs to form multiple shielding sheet strips. The second feeding device 3 includes multiple feeding mechanisms 55 for feeding each shielding sheet strip. Each cutting track 54 is provided with a cutting mold 56 and a cutting driver 57 for driving the cutting mold 56 to cut the corresponding shielding sheet strip into a single shielding sheet.

[0057] When the second feeding device 3 is working, multiple feeding mechanisms 55 can feed shielding sheet strips of different specifications separately and transport them to the corresponding cutting track 54. Compared with the traditional single feeding mechanism 55, it can realize the synchronous feeding of each component of the multi-piece shielding cover 6, which greatly improves the feeding efficiency and matches the conveying rhythm of the terminal 5 strip. The cutting driver 57 can drive the cutting die 56 to accurately cut the shielding sheet strip into individual qualified shielding sheets. Compared with traditional manual cutting or simple cutting equipment, the cutting accuracy is higher and the cut is smoother, avoiding the impact of shielding sheet size deviation on the fit with the differential gold needle 14.

[0058] Multiple cutting tracks 54 operate in parallel, enabling the simultaneous cutting of multiple shielding sheets. This accommodates the assembly requirements of multi-piece shielding covers 6, ensuring that each shielding sheet is synchronously transported to the picking position of the conveying device 7. This facilitates the conveying device 7's rapid gripping and assembly onto the terminals 5, and in particular, ensures that the C-shaped shielding part 16 is precisely positioned above the differential gold pin 14, guaranteeing the shielding effect. The entire feeding and cutting process is automated, requiring no manual intervention. This improves production efficiency while ensuring the dimensional and assembly accuracy of the shielding sheets, meeting the large-scale, high-precision production requirements of high-speed differential connectors.

[0059] The working principle of this invention is as follows: In response to the high-precision welding requirements of differential gold pins 14 and semi-open shielding covers 6 in high-speed cable electrical connectors, and the pain points of difficulty in accurately controlling the penetration depth and insufficient welding precision in traditional welding, an integrated working system with full-process automation, high-precision positioning, intelligent detection and precise control of penetration depth has been constructed. After the equipment is started, the first feeding device 2 drives the reel 31 to actively feed material through the drive motor 32. With the help of the guide rail 33, the terminal 5 material strip composed of connecting ribs and side strips 34 is stably transported to the assembly rail 29. The design of the terminal 5 being suspended between the groove rails 35 can avoid the differential gold needle 14 being damaged by friction with the rail, while ensuring the positioning accuracy of the terminal 5, laying the foundation for subsequent welding penetration and position accuracy control. The second feeding device 3 synchronously drives multiple feeding mechanisms 55 to transport the shielding sheet material strip. The cutting driver 57, together with the cutting mold 56, cuts the material strip into individual shielding sheets, realizing the automated feeding and cutting of the multi-piece shielding cover 6 assembly. It is precisely matched with the conveying rhythm of the terminal 5 material strip, ensuring the assembly accuracy of the shielding sheet and the terminal 5, and avoiding the impact of assembly deviation on the uniformity of subsequent welding penetration. The conveying device 7 then automatically grabs a single shielding sheet and precisely places the C-shaped shielding part 16 over two adjacent differential gold needles 14, completing the pre-assembly of the terminal 5 and the shielding cover 6. Compared with the traditional manual handling method, it greatly improves the assembly efficiency and positional accuracy, avoids the misalignment and deformation problems of the differential gold needles 14 caused by manual operation, and further ensures the welding accuracy and penetration stability.

[0060] The assembly device 8 forms a multi-level precision positioning and holding system through the bearing platform 9, the lifting component 22, the positioning base 61 and the pressing component 58, providing a stable workpiece state for welding operations and ensuring welding accuracy and uniform penetration depth from the source. After the terminal 5 material strip is conveyed to the bearing platform 9, the lifting driver 23 drives the lifting component 22 to move upward, so that the lifting protrusion 25 is embedded into the bearing groove of the bearing base 24, providing multi-point support and precise positioning for the terminal 5 from below, offsetting the pressure of the welding mold 11 pressing down, protecting the structural integrity of the differential gold needle 14, and ensuring the precise relative position of the terminal 5 and the shielding cover 6, avoiding deviation in welding depth due to uneven force on the workpiece; the positioning lifter 62 drives the positioning pin 63 on the positioning base 61 to pass through the clearance hole and insert into the positioning hole 44 of the side strip 34, fixing the bearing base 24 from the bottom, and the pressing driver 59 then drives the pressing component 58 to press the shielding cover 6 downward, so that the shielding cover 6, the terminal 5 and the bearing base 24 are tightly fixed, avoiding workpiece displacement during welding, and ensuring precise weld point position and uniform weld depth during the welding process. Meanwhile, the fixed track 36 and the moving track 37 of the assembly track 29 cooperate to accurately correct the conveying deviation of the terminal 5 material strip through the dual correction mechanism of the roller component 39 rolling limit and the correction component 42 single-point force application, ensuring the stable position of each differential gold needle 14, further improving the welding positioning accuracy, and providing a guarantee for the subsequent precise control of welding penetration. This effectively solves the problems of workpiece deformation, misalignment and differential signal transmission misalignment that are prone to occur in traditional positioning methods, while avoiding the hidden dangers of uneven penetration and incomplete welding caused by positioning deviation.

[0061] The welding device 4 works in conjunction with the detection system to achieve efficient, high-quality welding, precise penetration depth control, and full-process quality management, balancing welding accuracy and penetration depth stability. During welding, the Z-axis lifting mechanism 27 drives the laser emitter 26 to move up and down, adjusting the laser focal length according to different specifications of electrical connectors to precisely control the laser energy, thereby achieving precise control of the welding penetration depth. This ensures that the penetration depth meets the design standards, avoiding both insufficient weld strength due to shallow penetration and damage to the differential gold needle 14 due to excessive penetration. The two-dimensional galvanometer assembly 28 rapidly deflects and scans the laser beam within the scope of the laser emitter 26, precisely aligning it with each welding point of the shielding cover 6 and the differential gold needle 14 through the welding through-hole 13 of the welding mold 11, completing multi-point welding. This significantly improves the positioning accuracy of the weld points, ensuring that the position and penetration depth of each weld point meet the technical requirements. Compared to traditional welding methods, laser welding has a smaller heat-affected zone, preventing heat deformation of the differential gold needle 14 and damage to the insulation layer, ensuring the stability of differential signal transmission, and further improving welding accuracy and penetration depth consistency.

[0062] The entire machine, in conjunction with the first camera inspection component 49, the second camera inspection component 51, and the manual inspection station 52, forms a dual quality control system of "machine initial inspection + manual re-inspection". The first camera inspection component 49 removes defective products such as bent gold pins 14 and missing terminals 5 during the material loading stage, avoiding impact on subsequent welding accuracy and penetration control. The second camera inspection component 51 accurately inspects the solder joint quality and the assembly accuracy of the shielding cover 6 after welding, while also checking whether the solder penetration meets the standard and whether the welding position is accurate. Manual re-inspection compensates for the blind spots of machine inspection, further verifying penetration and accuracy indicators. Finally, the receiving device 53 sorts and collects qualified and unqualified products. Through this complete process design, the present invention achieves automated, high-precision, and high-reliability production of the shielding cover 6 for high-speed cable connectors, precisely solving the pain points of difficult penetration control and insufficient accuracy in traditional welding, significantly improving production efficiency and product yield, and perfectly adapting to the large-scale mass production needs of high-speed differential connectors.

[0063] To further illustrate the specific embodiments of the present invention, the following supplementary embodiments are provided in conjunction with the above technical solutions.

[0064] In this embodiment, three shielding sheet assembly stations are sequentially set along the conveying direction of the assembly track 29. Correspondingly, shielding sheet one, shielding sheet two, and shielding sheet three need to be installed on the terminal 5 in sequence. Shielding sheet one is located on the front of the terminal 5 and is a combination structure of four conductive sheets. Shielding sheet two is located on the front of the terminal 5 and is a structure of one conductive sheet. Shielding sheet three is located on the back of the terminal 5 and is a structure of one conductive sheet. Each shielding sheet is equipped with an independent feeding mechanism 55, a cutting track 54, a cutting mold 56, a cutting driver 57, and a corresponding conveying device 7. After independent feeding, cutting, and conveying, each shielding sheet is sequentially installed to the preset position of the terminal 5 to ensure that the assembly accuracy of each shielding sheet matches the overall production rhythm of the equipment and adapts to the automated assembly requirements of the multi-piece shielding cover 6.

[0065] Along the conveying direction of the assembly track 29, three core steps are sequentially performed for each shielding sheet installation station: positioning installation, upper pressing and lowering fixing, and pre-welding fixing. In the positioning installation stage, the positioning component 47 cooperates with the positioning hole 44 on the side strip 34 to achieve precise positioning of the terminal 5 and the bearing base 24, avoiding misalignment during assembly. In the upper pressing and lowering fixing stage, the upper pressing component 58 presses down on the shielding sheet, and the lower lifting component 22 and the positioning base 61 support and position it, so that the shielding sheet, terminal 5, and bearing base 24 are tightly fitted and relatively fixed. In the pre-welding fixing stage, the pre-welding device performs partial pre-welding on the shielding sheet and terminal 5 to achieve temporary fixation and prevent the shielding sheet from shifting during subsequent transfer, laying the foundation for subsequent formal welding. The pre-welding device is set on the assembly track, and the welding head of the pre-welding device can be driven to move above the corresponding pre-welding position. After the pre-welding fixing of one shielding sheet is completed, the assembly track 29 transfers the terminal 5 material strip to the next shielding sheet installation station to achieve continuous assembly.

[0066] For the installation of the reverse conductive sheet (shielding sheet three), two adaptation methods are available. Method one uses the track driver 38 to drive the moving track 37 to move laterally, increasing the gap between the fixed track 36 and the moving track 37, so that the reverse conductive sheet can be inserted from the side and accurately installed on the reverse side of the terminal 5 without flipping the terminal 5, simplifying the assembly process. Method two sets up a flipping device at the corresponding station of the assembly track 29, flipping the terminal 5 and its supporting base 24 before feeding, installing and fixing the reverse shielding sheet, adapting to the assembly requirements of different specifications of terminals 5. After the reverse conductive sheet is installed, positioned and pre-welded, it enters the laser welding process. The laser welding of the reverse conductive sheet is completed first, and then the front conductive sheet (shielding sheet two) and the four front conductive sheets (shielding sheet one) are welded in sequence to ensure a reasonable welding sequence and strong weld points.

[0067] To facilitate smooth switching between the positive and negative sides of terminal 5 during welding, a flipping device is installed on the support platform 9. Two flipping methods are available: Method 1 involves flipping the welding mold 11. The welding mold 11 has a flippable structure, with mold parts 17 corresponding to the positive and negative conductive sheets and welding through holes 13 on its front and back sides, respectively. Flipping allows for quick switching of the welding surface to accommodate both positive and negative welding requirements. Method 2 involves flipping terminal 5 and the support base 24. While keeping the welding mold 11 stationary, the flipping device rotates terminal 5 and the support base 24 together, resulting in the negative side facing upwards. The welding is completed in conjunction with the fixed welding mold 11, which is convenient to operate and precise in positioning. At the same time, the support platform 9 is slidably set on the frame 1. When it is necessary to replace, add or maintain the mold part 17, the support platform 9 can be pulled out laterally along the frame 1 and separated from the assembly track 29. The replacement, addition or debugging of the mold part 17 can be completed manually or by an external robotic arm. After the replacement is completed, the support platform 9 is pushed back in and reset to the receiving position of the assembly track 29 to continue the subsequent transfer, positioning and welding process of the terminal 5, which improves the convenience of equipment maintenance and ensures continuous production.

[0068] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention in any way. Although the present invention has been disclosed above with reference to preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art can make some modifications or alterations to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present invention. Any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present invention without departing from the scope of the present invention shall still fall within the scope of the present invention.

Claims

1. A welding machine for shielding covers of high-speed cable electrical connectors, characterized in that: The system includes a frame (1), a first feeding device (2), a second feeding device (3), and a welding device (4) mounted on the frame (1). The electrical connector includes a terminal (5) and a shield (6). The first feeding device (2) is used to feed the terminal (5), and the second feeding device (3) is used to feed the shield (6). The frame (1) is provided with a conveying device (7) and an assembly device (8). The first feeding device (2) is used to feed the terminal (5) onto the assembly device (8). The conveying device (7) is used to install the shield (6) onto the terminal (5) located on the assembly device (8). The welding device (4) is located above the assembly device (8) and is used to weld the assembled terminal. The terminal (5) and the shield (6) are welded into an electrical connector; the assembly device (8) includes a support platform (9) for carrying the terminal (5), a welding mold (11) that is raised and lowered above the support platform (9), and a mold lifter (12) that drives the welding mold (11) to rise and fall. The mold lifter (12) drives the welding mold (11) to press down against the shield (6) and cooperates with the support platform (9) to hold the assembled terminal (5) and shield (6). The welding mold (11) has several welding through holes (13) that expose the welding position of the shield (6). The welding device (4) welds several welding points on the shield (6) through the welding through holes (13).

2. The shielding cover welding machine for high-speed cable electrical connectors according to claim 1, characterized in that: The terminal (5) includes multiple parallel gold needles (14), and the shield (6) has multiple welding parts (15) and multiple shielding parts (16). Each welding part (15) and each shielding part (16) is arranged parallel to the gold needles (14). The shielding part (16) is connected between two adjacent welding parts (15). The welding parts (15) are used to weld onto the gold needles (14). There are two gold needles (14) between two adjacent welding parts (15). The shielding part (16) is arranged in a C-shape above the two gold needles (14) between two adjacent welding parts (15) and cooperates with the two adjacent welding parts (15). A shielding space is formed; the welding mold (11) has a mold part (17), welding through holes (13) are provided on the mold part (17), and a number of welding through holes (13) are arranged along the extension direction of the gold needle (14) and perpendicular to the extension direction of the gold needle (14). The mold part (17) is provided with a pressing protrusion (18), and the welding through hole (13) is provided between two adjacent pressing protrusions (18) along the extension direction of the gold needle (14). A shielding groove (19) for accommodating the shielding part (16) is provided between two adjacent pressing protrusions (18) along the extension direction perpendicular to the extension direction of the gold needle (14).

3. The shielding cover welding machine for high-speed cable electrical connectors according to claim 1, characterized in that: The support platform (9) is provided with a central through hole (21), a lifting member (22) that is lifted and lowered in the central through hole (21), and a lifting driver (23). The terminal (5) is located above the central through hole (21). The terminal (5) is provided with a support base (24) composed of several connecting ribs. The support base (24) is supported on the support platform (9). The lifting member (22) has a lifting surface for abutting the terminal (5). Several lifting protrusions (25) are provided on the lifting surface. The support base (24) has several support grooves that cooperate with the several lifting protrusions (25).

4. A shielding cover welding machine for high-speed cable electrical connectors according to claim 1, characterized in that: The welding device (4) includes a laser emitter (26), a Z-axis lifting mechanism (27), and a two-dimensional galvanometer assembly (28). The Z-axis lifting mechanism (27) is used to drive the laser emitter (26) to lift and adjust the focus. The two-dimensional galvanometer assembly (28) is used to deflect and scan the laser beam to each welding through hole (13) of the welding mold (11) within the scope of the lens barrel of the laser emitter (26) so as to weld several welding points of the shield (6) and the terminal (5) in sequence.

5. A shielding cover welding machine for high-speed cable electrical connectors according to claim 3, characterized in that: The assembly device (8) has an assembly track (29) set on the frame (1), and several terminals (5) are connected as terminal (5) strips through corresponding bearing bases (24); the first feeding device (2) includes a reel (31), a drive motor (32) and a guide rail (33), the reel (31) is used to carry the terminal (5) strips, the drive motor (32) is connected to the reel (31) to drive the reel (31) to actively feed the material, and the guide rail (33) is connected to the drive motor (32) to drive the reel (31) to actively feed the material. The track (33) is located below the reel (31) and is used to guide and transport the terminal (5) strip to the assembly track (29); the bearing base (24) has a side strip (34) located on the outer periphery of the terminal (5), and two grooves (35) are arranged parallel to each other on both sides of the assembly track (29) for accommodating the side strip (34). The terminal (5) is suspended between the two grooves (35), and the bearing platform (9) is used to receive the terminal (5) strip transported on the assembly track (29).

6. A shielding cover welding machine for high-speed cable electrical connectors according to claim 5, characterized in that: The assembly track (29) includes a fixed track (36) mounted on the frame (1), a reciprocating moving track (37), and a track driver (38) that drives the moving track (37) to approach and / or move away from the fixed track (36); the fixed track (36) is provided with rollers (39) and a limit lifter (41) that drives the rollers (39) to rise and fall, the rollers (39) being used to roll against the side strip (34) of the terminal (5) material strip to... The terminal (5) strip is corrected and limited; the moving track (37) is provided with a correction component (42) and a correction drive component (43) for driving the correction component (42) to rise and fall. The correction component (42) is used to insert between adjacent bearing bases (24). The track driver (38) drives the moving track (37) to drive the correction component (42) to abut against the bearing base (24) and push the bearing base (24) toward the fixed track (36) to realize the correction of the terminal (5) strip.

7. A shielding cover welding machine for high-speed cable electrical connectors according to claim 6, characterized in that: The side strip (34) of the terminal (5) strip is provided with a positioning hole (44). The bearing platform (9) is provided with a linear rail (45) for receiving the channel rail (35). The linear rail (45) and the channel rail (35) are both provided with an exposure groove. The exposure groove is used to expose the positioning hole (44) on the side strip (34). The fixed track (36) and the welding mold (11) are both provided with positioning parts (47). The fixed track (36) is provided with a positioning driver (48) for driving the positioning parts (47) to rise and fall, so as to drive the positioning parts (47) to pass through the exposure groove and cooperate with the positioning hole (44) to position the terminal (5) strip. The positioning parts (47) on the welding mold (11) are used to cooperate with the positioning hole (44) and, under the drive of the mold lifter (12), press and fix the electrical connector to be welded with the welding mold (11).

8. A shielding cover welding machine for high-speed cable electrical connectors according to claim 7, characterized in that: The assembly track (29) is provided with a pressing component (58) and a pressing driver (59) for driving the pressing component (58) to press down. The frame (1) is provided with a liftable positioning base (61) and a positioning lifter (62) for driving the positioning base (61) to rise and fall. The positioning base (61) is provided with multiple positioning pins (63). Both the fixed track (36) and the moving track (37) are provided with clearance holes for exposing the lower part of the side strip (34). The transport device (7) After the shield (6) is placed on the terminal (5), the positioning lifter (62) drives the positioning pin (63) on the positioning base (61) to pass upward through the clearance hole and insert into the positioning hole (44) of the side strip (34) to position the bearing base (24). The pressing driver (59) drives the pressing part (58) to press the shield (6) downward onto the terminal (5) and the bearing base (24), so that the shield (6), the terminal (5) and the bearing base (24) are relatively fixed.

9. A shielding cover welding machine for high-speed cable electrical connectors according to claim 5, characterized in that: The frame (1) is provided with a first camera detection component (49), a second camera detection component (51), a manual inspection station (52) and a receiving device (53). The first camera detection component (49) is located between the first loading device (2) and the assembly track (29). The second camera detection component (51) is located between the carrying platform (9) and the manual inspection station (52). The manual inspection station (52) is located between the second camera detection component (51) and the receiving device (53). The receiving device (53) is used to receive the electrical connectors after they have been inspected by the second camera detection component (51) and the manual inspection station (52).

10. A shielding cover welding machine for high-speed cable electrical connectors according to claim 1, characterized in that: The shielding cover (6) includes multiple shielding sheets. The frame (1) is provided with multiple cutting tracks (54) for conveying each shielding sheet. Each shielding sheet is connected by connecting ribs to form multiple shielding sheet strips. The second feeding device (3) includes multiple feeding mechanisms (55) for feeding each shielding sheet strip. Each cutting track (54) is provided with a cutting mold (56) and a cutting driver (57) for driving the cutting mold (56) to cut the corresponding shielding sheet strip into a single shielding sheet.

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